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authorPablo Neira Ayuso <pablo@netfilter.org>2015-04-08 17:40:17 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2015-04-08 18:30:21 +0200
commitaadd51aa71f8d013c818a312bb2a0c5714830dbc (patch)
tree28ca52d17183cb1d732b1324fce4f7b5d6b3dfc0 /net
parent68e942e88add0ac8576fc8397e86495edf3dcea7 (diff)
parentee90b81203a91d4e5385622811ee7872b5bcfe76 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Resolve conflicts between 5888b93 ("Merge branch 'nf-hook-compress'") and Florian Westphal br_netfilter works. Conflicts: net/bridge/br_netfilter.c Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
-rw-r--r--net/8021q/vlan_dev.c9
-rw-r--r--net/batman-adv/hard-interface.c5
-rw-r--r--net/bluetooth/bnep/bnep.h4
-rw-r--r--net/bluetooth/bnep/core.c70
-rw-r--r--net/bluetooth/bnep/sock.c7
-rw-r--r--net/bluetooth/cmtp/capi.c2
-rw-r--r--net/bluetooth/cmtp/core.c15
-rw-r--r--net/bluetooth/hci_core.c120
-rw-r--r--net/bluetooth/hci_debugfs.c26
-rw-r--r--net/bluetooth/hci_event.c175
-rw-r--r--net/bluetooth/hci_request.c20
-rw-r--r--net/bluetooth/hci_request.h5
-rw-r--r--net/bluetooth/hci_sock.c2
-rw-r--r--net/bluetooth/hidp/core.c15
-rw-r--r--net/bluetooth/l2cap_core.c48
-rw-r--r--net/bluetooth/l2cap_sock.c6
-rw-r--r--net/bluetooth/mgmt.c267
-rw-r--r--net/bluetooth/selftest.c35
-rw-r--r--net/bluetooth/smp.c45
-rw-r--r--net/bridge/br_forward.c13
-rw-r--r--net/bridge/br_input.c16
-rw-r--r--net/bridge/br_multicast.c3
-rw-r--r--net/bridge/br_netfilter.c96
-rw-r--r--net/bridge/br_netlink.c4
-rw-r--r--net/bridge/br_private.h6
-rw-r--r--net/bridge/br_stp_bpdu.c5
-rw-r--r--net/bridge/netfilter/ebtable_filter.c14
-rw-r--r--net/bridge/netfilter/ebtable_nat.c14
-rw-r--r--net/bridge/netfilter/nf_tables_bridge.c28
-rw-r--r--net/can/raw.c50
-rw-r--r--net/core/dev.c46
-rw-r--r--net/core/fib_rules.c2
-rw-r--r--net/core/filter.c115
-rw-r--r--net/core/link_watch.c4
-rw-r--r--net/core/net-sysfs.c10
-rw-r--r--net/core/net_namespace.c107
-rw-r--r--net/core/rtnetlink.c12
-rw-r--r--net/core/sock.c19
-rw-r--r--net/decnet/dn_neigh.c35
-rw-r--r--net/decnet/dn_nsp_in.c5
-rw-r--r--net/decnet/dn_route.c26
-rw-r--r--net/decnet/dn_rules.c2
-rw-r--r--net/decnet/netfilter/dn_rtmsg.c4
-rw-r--r--net/dsa/dsa.c23
-rw-r--r--net/dsa/slave.c8
-rw-r--r--net/ipv4/af_inet.c8
-rw-r--r--net/ipv4/arp.c38
-rw-r--r--net/ipv4/cipso_ipv4.c42
-rw-r--r--net/ipv4/devinet.c42
-rw-r--r--net/ipv4/esp4.c2
-rw-r--r--net/ipv4/fib_frontend.c28
-rw-r--r--net/ipv4/fib_rules.c4
-rw-r--r--net/ipv4/fib_semantics.c24
-rw-r--r--net/ipv4/fib_trie.c12
-rw-r--r--net/ipv4/geneve.c6
-rw-r--r--net/ipv4/gre_offload.c4
-rw-r--r--net/ipv4/icmp.c6
-rw-r--r--net/ipv4/igmp.c20
-rw-r--r--net/ipv4/inet_connection_sock.c8
-rw-r--r--net/ipv4/inet_fragment.c4
-rw-r--r--net/ipv4/inet_hashtables.c2
-rw-r--r--net/ipv4/inet_timewait_sock.c2
-rw-r--r--net/ipv4/ip_forward.c8
-rw-r--r--net/ipv4/ip_fragment.c14
-rw-r--r--net/ipv4/ip_gre.c6
-rw-r--r--net/ipv4/ip_input.c17
-rw-r--r--net/ipv4/ip_options.c2
-rw-r--r--net/ipv4/ip_output.c74
-rw-r--r--net/ipv4/ip_sockglue.c6
-rw-r--r--net/ipv4/ip_tunnel.c21
-rw-r--r--net/ipv4/ip_vti.c4
-rw-r--r--net/ipv4/ipcomp.c2
-rw-r--r--net/ipv4/ipconfig.c6
-rw-r--r--net/ipv4/ipip.c4
-rw-r--r--net/ipv4/ipmr.c73
-rw-r--r--net/ipv4/netfilter.c4
-rw-r--r--net/ipv4/netfilter/arp_tables.c11
-rw-r--r--net/ipv4/netfilter/arptable_filter.c7
-rw-r--r--net/ipv4/netfilter/ip_tables.c13
-rw-r--r--net/ipv4/netfilter/ipt_CLUSTERIP.c10
-rw-r--r--net/ipv4/netfilter/ipt_SYNPROXY.c6
-rw-r--r--net/ipv4/netfilter/iptable_filter.c8
-rw-r--r--net/ipv4/netfilter/iptable_mangle.c19
-rw-r--r--net/ipv4/netfilter/iptable_nat.c29
-rw-r--r--net/ipv4/netfilter/iptable_raw.c7
-rw-r--r--net/ipv4/netfilter/iptable_security.c8
-rw-r--r--net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c20
-rw-r--r--net/ipv4/netfilter/nf_defrag_ipv4.c4
-rw-r--r--net/ipv4/netfilter/nf_nat_l3proto_ipv4.c33
-rw-r--r--net/ipv4/netfilter/nf_tables_arp.c6
-rw-r--r--net/ipv4/netfilter/nf_tables_ipv4.c12
-rw-r--r--net/ipv4/netfilter/nft_chain_nat_ipv4.c29
-rw-r--r--net/ipv4/netfilter/nft_chain_route_ipv4.c6
-rw-r--r--net/ipv4/ping.c4
-rw-r--r--net/ipv4/raw.c10
-rw-r--r--net/ipv4/route.c22
-rw-r--r--net/ipv4/sysctl_net_ipv4.c6
-rw-r--r--net/ipv4/tcp.c14
-rw-r--r--net/ipv4/tcp_diag.c2
-rw-r--r--net/ipv4/tcp_fastopen.c7
-rw-r--r--net/ipv4/tcp_input.c104
-rw-r--r--net/ipv4/tcp_ipv4.c12
-rw-r--r--net/ipv4/tcp_metrics.c15
-rw-r--r--net/ipv4/tcp_minisocks.c8
-rw-r--r--net/ipv4/tcp_output.c71
-rw-r--r--net/ipv4/tcp_timer.c2
-rw-r--r--net/ipv4/udp.c10
-rw-r--r--net/ipv4/udp_diag.c2
-rw-r--r--net/ipv4/udp_offload.c4
-rw-r--r--net/ipv4/udp_tunnel.c4
-rw-r--r--net/ipv4/xfrm4_input.c7
-rw-r--r--net/ipv4/xfrm4_output.c12
-rw-r--r--net/ipv4/xfrm4_policy.c2
-rw-r--r--net/ipv6/addrconf.c4
-rw-r--r--net/ipv6/fib6_rules.c2
-rw-r--r--net/ipv6/ip6_gre.c10
-rw-r--r--net/ipv6/ip6_input.c11
-rw-r--r--net/ipv6/ip6_output.c36
-rw-r--r--net/ipv6/ip6_tunnel.c12
-rw-r--r--net/ipv6/ip6_udp_tunnel.c5
-rw-r--r--net/ipv6/ip6_vti.c3
-rw-r--r--net/ipv6/ip6mr.c22
-rw-r--r--net/ipv6/mcast.c9
-rw-r--r--net/ipv6/ndisc.c14
-rw-r--r--net/ipv6/netfilter.c4
-rw-r--r--net/ipv6/netfilter/ip6_tables.c13
-rw-r--r--net/ipv6/netfilter/ip6t_SYNPROXY.c6
-rw-r--r--net/ipv6/netfilter/ip6table_filter.c8
-rw-r--r--net/ipv6/netfilter/ip6table_mangle.c19
-rw-r--r--net/ipv6/netfilter/ip6table_nat.c29
-rw-r--r--net/ipv6/netfilter/ip6table_raw.c8
-rw-r--r--net/ipv6/netfilter/ip6table_security.c8
-rw-r--r--net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c20
-rw-r--r--net/ipv6/netfilter/nf_defrag_ipv6_hooks.c10
-rw-r--r--net/ipv6/netfilter/nf_nat_l3proto_ipv6.c32
-rw-r--r--net/ipv6/netfilter/nf_tables_ipv6.c12
-rw-r--r--net/ipv6/netfilter/nft_chain_nat_ipv6.c29
-rw-r--r--net/ipv6/netfilter/nft_chain_route_ipv6.c6
-rw-r--r--net/ipv6/output_core.c23
-rw-r--r--net/ipv6/raw.c4
-rw-r--r--net/ipv6/sit.c3
-rw-r--r--net/ipv6/tcp_ipv6.c13
-rw-r--r--net/ipv6/xfrm6_input.c3
-rw-r--r--net/ipv6/xfrm6_output.c15
-rw-r--r--net/iucv/af_iucv.c4
-rw-r--r--net/l2tp/l2tp_core.c1
-rw-r--r--net/mac80211/agg-rx.c8
-rw-r--r--net/mac80211/rx.c7
-rw-r--r--net/mac80211/sta_info.h2
-rw-r--r--net/netfilter/core.c31
-rw-r--r--net/netfilter/ipvs/ip_vs_core.c32
-rw-r--r--net/netfilter/ipvs/ip_vs_xmit.c8
-rw-r--r--net/netfilter/nf_internals.h11
-rw-r--r--net/netfilter/nf_queue.c58
-rw-r--r--net/netfilter/nfnetlink_queue_core.c30
-rw-r--r--net/openvswitch/vport-vxlan.c5
-rw-r--r--net/openvswitch/vport.c4
-rw-r--r--net/sched/sch_fq.c4
-rw-r--r--net/sunrpc/clnt.c4
-rw-r--r--net/sunrpc/debugfs.c52
-rw-r--r--net/sunrpc/sunrpc_syms.c7
-rw-r--r--net/sunrpc/xprt.c7
-rw-r--r--net/tipc/bcast.c4
-rw-r--r--net/tipc/core.c2
-rw-r--r--net/tipc/link.c343
-rw-r--r--net/tipc/link.h29
-rw-r--r--net/tipc/msg.c4
-rw-r--r--net/tipc/msg.h10
-rw-r--r--net/tipc/node.c22
-rw-r--r--net/tipc/udp_media.c6
-rw-r--r--net/xfrm/xfrm_output.c16
171 files changed, 2047 insertions, 1639 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 8b5ab9033b41..01d7ba840df8 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -538,7 +538,6 @@ static int vlan_dev_init(struct net_device *dev)
/* IFF_BROADCAST|IFF_MULTICAST; ??? */
dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
IFF_MASTER | IFF_SLAVE);
- dev->iflink = real_dev->ifindex;
dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
(1<<__LINK_STATE_DORMANT))) |
(1<<__LINK_STATE_PRESENT);
@@ -733,6 +732,13 @@ static void vlan_dev_netpoll_cleanup(struct net_device *dev)
}
#endif /* CONFIG_NET_POLL_CONTROLLER */
+static int vlan_dev_get_iflink(const struct net_device *dev)
+{
+ struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
+
+ return real_dev->ifindex;
+}
+
static const struct ethtool_ops vlan_ethtool_ops = {
.get_settings = vlan_ethtool_get_settings,
.get_drvinfo = vlan_ethtool_get_drvinfo,
@@ -769,6 +775,7 @@ static const struct net_device_ops vlan_netdev_ops = {
#endif
.ndo_fix_features = vlan_dev_fix_features,
.ndo_get_lock_subclass = vlan_dev_get_lock_subclass,
+ .ndo_get_iflink = vlan_dev_get_iflink,
};
static void vlan_dev_free(struct net_device *dev)
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index fbda6b54baff..baf1f9843f2c 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -83,11 +83,12 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev)
return true;
/* no more parents..stop recursion */
- if (net_dev->iflink == 0 || net_dev->iflink == net_dev->ifindex)
+ if (dev_get_iflink(net_dev) == 0 ||
+ dev_get_iflink(net_dev) == net_dev->ifindex)
return false;
/* recurse over the parent device */
- parent_dev = __dev_get_by_index(&init_net, net_dev->iflink);
+ parent_dev = __dev_get_by_index(&init_net, dev_get_iflink(net_dev));
/* if we got a NULL parent_dev there is something broken.. */
if (WARN(!parent_dev, "Cannot find parent device"))
return false;
diff --git a/net/bluetooth/bnep/bnep.h b/net/bluetooth/bnep/bnep.h
index 5a5b16f365e9..40854c99bc1e 100644
--- a/net/bluetooth/bnep/bnep.h
+++ b/net/bluetooth/bnep/bnep.h
@@ -111,6 +111,10 @@ struct bnep_ext_hdr {
#define BNEPCONNDEL _IOW('B', 201, int)
#define BNEPGETCONNLIST _IOR('B', 210, int)
#define BNEPGETCONNINFO _IOR('B', 211, int)
+#define BNEPGETSUPPFEAT _IOR('B', 212, int)
+
+#define BNEP_SETUP_RESPONSE 0
+#define BNEP_SETUP_RSP_SENT 10
struct bnep_connadd_req {
int sock; /* Connected socket */
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 05f57e491ccb..1641367e54ca 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -231,7 +231,14 @@ static int bnep_rx_control(struct bnep_session *s, void *data, int len)
break;
case BNEP_SETUP_CONN_REQ:
- err = bnep_send_rsp(s, BNEP_SETUP_CONN_RSP, BNEP_CONN_NOT_ALLOWED);
+ /* Successful response should be sent only once */
+ if (test_bit(BNEP_SETUP_RESPONSE, &s->flags) &&
+ !test_and_set_bit(BNEP_SETUP_RSP_SENT, &s->flags))
+ err = bnep_send_rsp(s, BNEP_SETUP_CONN_RSP,
+ BNEP_SUCCESS);
+ else
+ err = bnep_send_rsp(s, BNEP_SETUP_CONN_RSP,
+ BNEP_CONN_NOT_ALLOWED);
break;
default: {
@@ -239,7 +246,7 @@ static int bnep_rx_control(struct bnep_session *s, void *data, int len)
pkt[0] = BNEP_CONTROL;
pkt[1] = BNEP_CMD_NOT_UNDERSTOOD;
pkt[2] = cmd;
- bnep_send(s, pkt, sizeof(pkt));
+ err = bnep_send(s, pkt, sizeof(pkt));
}
break;
}
@@ -292,29 +299,55 @@ static int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)
{
struct net_device *dev = s->dev;
struct sk_buff *nskb;
- u8 type;
+ u8 type, ctrl_type;
dev->stats.rx_bytes += skb->len;
type = *(u8 *) skb->data;
skb_pull(skb, 1);
+ ctrl_type = *(u8 *)skb->data;
if ((type & BNEP_TYPE_MASK) >= sizeof(__bnep_rx_hlen))
goto badframe;
if ((type & BNEP_TYPE_MASK) == BNEP_CONTROL) {
- bnep_rx_control(s, skb->data, skb->len);
- kfree_skb(skb);
- return 0;
- }
+ if (bnep_rx_control(s, skb->data, skb->len) < 0) {
+ dev->stats.tx_errors++;
+ kfree_skb(skb);
+ return 0;
+ }
- skb_reset_mac_header(skb);
+ if (!(type & BNEP_EXT_HEADER)) {
+ kfree_skb(skb);
+ return 0;
+ }
- /* Verify and pull out header */
- if (!skb_pull(skb, __bnep_rx_hlen[type & BNEP_TYPE_MASK]))
- goto badframe;
+ /* Verify and pull ctrl message since it's already processed */
+ switch (ctrl_type) {
+ case BNEP_SETUP_CONN_REQ:
+ /* Pull: ctrl type (1 b), len (1 b), data (len bytes) */
+ if (!skb_pull(skb, 2 + *(u8 *)(skb->data + 1) * 2))
+ goto badframe;
+ break;
+ case BNEP_FILTER_MULTI_ADDR_SET:
+ case BNEP_FILTER_NET_TYPE_SET:
+ /* Pull: ctrl type (1 b), len (2 b), data (len bytes) */
+ if (!skb_pull(skb, 3 + *(u16 *)(skb->data + 1) * 2))
+ goto badframe;
+ break;
+ default:
+ kfree_skb(skb);
+ return 0;
+ }
+ } else {
+ skb_reset_mac_header(skb);
- s->eh.h_proto = get_unaligned((__be16 *) (skb->data - 2));
+ /* Verify and pull out header */
+ if (!skb_pull(skb, __bnep_rx_hlen[type & BNEP_TYPE_MASK]))
+ goto badframe;
+
+ s->eh.h_proto = get_unaligned((__be16 *) (skb->data - 2));
+ }
if (type & BNEP_EXT_HEADER) {
if (bnep_rx_extension(s, skb) < 0)
@@ -525,6 +558,7 @@ static struct device_type bnep_type = {
int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
{
+ u32 valid_flags = BIT(BNEP_SETUP_RESPONSE);
struct net_device *dev;
struct bnep_session *s, *ss;
u8 dst[ETH_ALEN], src[ETH_ALEN];
@@ -535,6 +569,9 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
if (!l2cap_is_socket(sock))
return -EBADFD;
+ if (req->flags & ~valid_flags)
+ return -EINVAL;
+
baswap((void *) dst, &l2cap_pi(sock->sk)->chan->dst);
baswap((void *) src, &l2cap_pi(sock->sk)->chan->src);
@@ -566,6 +603,7 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
s->sock = sock;
s->role = req->role;
s->state = BT_CONNECTED;
+ s->flags = req->flags;
s->msg.msg_flags = MSG_NOSIGNAL;
@@ -611,11 +649,15 @@ failed:
int bnep_del_connection(struct bnep_conndel_req *req)
{
+ u32 valid_flags = 0;
struct bnep_session *s;
int err = 0;
BT_DBG("");
+ if (req->flags & ~valid_flags)
+ return -EINVAL;
+
down_read(&bnep_session_sem);
s = __bnep_get_session(req->dst);
@@ -631,10 +673,12 @@ int bnep_del_connection(struct bnep_conndel_req *req)
static void __bnep_copy_ci(struct bnep_conninfo *ci, struct bnep_session *s)
{
+ u32 valid_flags = BIT(BNEP_SETUP_RESPONSE);
+
memset(ci, 0, sizeof(*ci));
memcpy(ci->dst, s->eh.h_source, ETH_ALEN);
strcpy(ci->device, s->dev->name);
- ci->flags = s->flags;
+ ci->flags = s->flags & valid_flags;
ci->state = s->state;
ci->role = s->role;
}
diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c
index 5f051290daba..bde2bdd9e929 100644
--- a/net/bluetooth/bnep/sock.c
+++ b/net/bluetooth/bnep/sock.c
@@ -57,6 +57,7 @@ static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long
struct bnep_conninfo ci;
struct socket *nsock;
void __user *argp = (void __user *)arg;
+ __u32 supp_feat = BIT(BNEP_SETUP_RESPONSE);
int err;
BT_DBG("cmd %x arg %lx", cmd, arg);
@@ -120,6 +121,12 @@ static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long
return err;
+ case BNEPGETSUPPFEAT:
+ if (copy_to_user(argp, &supp_feat, sizeof(supp_feat)))
+ return -EFAULT;
+
+ return 0;
+
default:
return -EINVAL;
}
diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c
index 75bd2c42e3e7..b0c6c6af76ef 100644
--- a/net/bluetooth/cmtp/capi.c
+++ b/net/bluetooth/cmtp/capi.c
@@ -333,7 +333,7 @@ void cmtp_recv_capimsg(struct cmtp_session *session, struct sk_buff *skb)
return;
}
- if (session->flags & (1 << CMTP_LOOPBACK)) {
+ if (session->flags & BIT(CMTP_LOOPBACK)) {
kfree_skb(skb);
return;
}
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 278a194e6af4..298ed37010e6 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -75,10 +75,11 @@ static void __cmtp_unlink_session(struct cmtp_session *session)
static void __cmtp_copy_session(struct cmtp_session *session, struct cmtp_conninfo *ci)
{
+ u32 valid_flags = BIT(CMTP_LOOPBACK);
memset(ci, 0, sizeof(*ci));
bacpy(&ci->bdaddr, &session->bdaddr);
- ci->flags = session->flags;
+ ci->flags = session->flags & valid_flags;
ci->state = session->state;
ci->num = session->num;
@@ -313,7 +314,7 @@ static int cmtp_session(void *arg)
down_write(&cmtp_session_sem);
- if (!(session->flags & (1 << CMTP_LOOPBACK)))
+ if (!(session->flags & BIT(CMTP_LOOPBACK)))
cmtp_detach_device(session);
fput(session->sock->file);
@@ -329,6 +330,7 @@ static int cmtp_session(void *arg)
int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
{
+ u32 valid_flags = BIT(CMTP_LOOPBACK);
struct cmtp_session *session, *s;
int i, err;
@@ -337,6 +339,9 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
if (!l2cap_is_socket(sock))
return -EBADFD;
+ if (req->flags & ~valid_flags)
+ return -EINVAL;
+
session = kzalloc(sizeof(struct cmtp_session), GFP_KERNEL);
if (!session)
return -ENOMEM;
@@ -385,7 +390,7 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
goto unlink;
}
- if (!(session->flags & (1 << CMTP_LOOPBACK))) {
+ if (!(session->flags & BIT(CMTP_LOOPBACK))) {
err = cmtp_attach_device(session);
if (err < 0) {
atomic_inc(&session->terminate);
@@ -409,11 +414,15 @@ failed:
int cmtp_del_connection(struct cmtp_conndel_req *req)
{
+ u32 valid_flags = 0;
struct cmtp_session *session;
int err = 0;
BT_DBG("");
+ if (req->flags & ~valid_flags)
+ return -EINVAL;
+
down_read(&cmtp_session_sem);
session = __cmtp_get_session(&req->bdaddr);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index e6bfeb7b4415..46b114c0140b 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -141,13 +141,16 @@ static const struct file_operations dut_mode_fops = {
/* ---- HCI requests ---- */
-static void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode)
+static void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode,
+ struct sk_buff *skb)
{
BT_DBG("%s result 0x%2.2x", hdev->name, result);
if (hdev->req_status == HCI_REQ_PEND) {
hdev->req_result = result;
hdev->req_status = HCI_REQ_DONE;
+ if (skb)
+ hdev->req_skb = skb_get(skb);
wake_up_interruptible(&hdev->req_wait_q);
}
}
@@ -163,66 +166,12 @@ static void hci_req_cancel(struct hci_dev *hdev, int err)
}
}
-static struct sk_buff *hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
- u8 event)
-{
- struct hci_ev_cmd_complete *ev;
- struct hci_event_hdr *hdr;
- struct sk_buff *skb;
-
- hci_dev_lock(hdev);
-
- skb = hdev->recv_evt;
- hdev->recv_evt = NULL;
-
- hci_dev_unlock(hdev);
-
- if (!skb)
- return ERR_PTR(-ENODATA);
-
- if (skb->len < sizeof(*hdr)) {
- BT_ERR("Too short HCI event");
- goto failed;
- }
-
- hdr = (void *) skb->data;
- skb_pull(skb, HCI_EVENT_HDR_SIZE);
-
- if (event) {
- if (hdr->evt != event)
- goto failed;
- return skb;
- }
-
- if (hdr->evt != HCI_EV_CMD_COMPLETE) {
- BT_DBG("Last event is not cmd complete (0x%2.2x)", hdr->evt);
- goto failed;
- }
-
- if (skb->len < sizeof(*ev)) {
- BT_ERR("Too short cmd_complete event");
- goto failed;
- }
-
- ev = (void *) skb->data;
- skb_pull(skb, sizeof(*ev));
-
- if (opcode == __le16_to_cpu(ev->opcode))
- return skb;
-
- BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
- __le16_to_cpu(ev->opcode));
-
-failed:
- kfree_skb(skb);
- return ERR_PTR(-ENODATA);
-}
-
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u8 event, u32 timeout)
{
DECLARE_WAITQUEUE(wait, current);
struct hci_request req;
+ struct sk_buff *skb;
int err = 0;
BT_DBG("%s", hdev->name);
@@ -236,7 +185,7 @@ struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
add_wait_queue(&hdev->req_wait_q, &wait);
set_current_state(TASK_INTERRUPTIBLE);
- err = hci_req_run(&req, hci_req_sync_complete);
+ err = hci_req_run_skb(&req, hci_req_sync_complete);
if (err < 0) {
remove_wait_queue(&hdev->req_wait_q, &wait);
set_current_state(TASK_RUNNING);
@@ -265,13 +214,20 @@ struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
}
hdev->req_status = hdev->req_result = 0;
+ skb = hdev->req_skb;
+ hdev->req_skb = NULL;
BT_DBG("%s end: err %d", hdev->name, err);
- if (err < 0)
+ if (err < 0) {
+ kfree_skb(skb);
return ERR_PTR(err);
+ }
+
+ if (!skb)
+ return ERR_PTR(-ENODATA);
- return hci_get_cmd_complete(hdev, opcode, event);
+ return skb;
}
EXPORT_SYMBOL(__hci_cmd_sync_ev);
@@ -303,7 +259,7 @@ static int __hci_req_sync(struct hci_dev *hdev,
add_wait_queue(&hdev->req_wait_q, &wait);
set_current_state(TASK_INTERRUPTIBLE);
- err = hci_req_run(&req, hci_req_sync_complete);
+ err = hci_req_run_skb(&req, hci_req_sync_complete);
if (err < 0) {
hdev->req_status = 0;
@@ -1690,9 +1646,6 @@ static int hci_dev_do_close(struct hci_dev *hdev)
hdev->sent_cmd = NULL;
}
- kfree_skb(hdev->recv_evt);
- hdev->recv_evt = NULL;
-
/* After this point our queues are empty
* and no tasks are scheduled. */
hdev->close(hdev);
@@ -3563,11 +3516,6 @@ static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
}
}
-bool hci_req_pending(struct hci_dev *hdev)
-{
- return (hdev->req_status == HCI_REQ_PEND);
-}
-
/* Send HCI command */
int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
const void *param)
@@ -3585,7 +3533,7 @@ int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
/* Stand-alone HCI commands must be flagged as
* single-command requests.
*/
- bt_cb(skb)->req_start = 1;
+ bt_cb(skb)->req.start = true;
skb_queue_tail(&hdev->cmd_q, skb);
queue_work(hdev->workqueue, &hdev->cmd_work);
@@ -4263,7 +4211,7 @@ static bool hci_req_is_complete(struct hci_dev *hdev)
if (!skb)
return true;
- return bt_cb(skb)->req_start;
+ return bt_cb(skb)->req.start;
}
static void hci_resend_last(struct hci_dev *hdev)
@@ -4288,9 +4236,10 @@ static void hci_resend_last(struct hci_dev *hdev)
queue_work(hdev->workqueue, &hdev->cmd_work);
}
-void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status)
+void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
+ hci_req_complete_t *req_complete,
+ hci_req_complete_skb_t *req_complete_skb)
{
- hci_req_complete_t req_complete = NULL;
struct sk_buff *skb;
unsigned long flags;
@@ -4322,36 +4271,29 @@ void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status)
* callback would be found in hdev->sent_cmd instead of the
* command queue (hdev->cmd_q).
*/
- if (hdev->sent_cmd) {
- req_complete = bt_cb(hdev->sent_cmd)->req_complete;
-
- if (req_complete) {
- /* We must set the complete callback to NULL to
- * avoid calling the callback more than once if
- * this function gets called again.
- */
- bt_cb(hdev->sent_cmd)->req_complete = NULL;
+ if (bt_cb(hdev->sent_cmd)->req.complete) {
+ *req_complete = bt_cb(hdev->sent_cmd)->req.complete;
+ return;
+ }
- goto call_complete;
- }
+ if (bt_cb(hdev->sent_cmd)->req.complete_skb) {
+ *req_complete_skb = bt_cb(hdev->sent_cmd)->req.complete_skb;
+ return;
}
/* Remove all pending commands belonging to this request */
spin_lock_irqsave(&hdev->cmd_q.lock, flags);
while ((skb = __skb_dequeue(&hdev->cmd_q))) {
- if (bt_cb(skb)->req_start) {
+ if (bt_cb(skb)->req.start) {
__skb_queue_head(&hdev->cmd_q, skb);
break;
}
- req_complete = bt_cb(skb)->req_complete;
+ *req_complete = bt_cb(skb)->req.complete;
+ *req_complete_skb = bt_cb(skb)->req.complete_skb;
kfree_skb(skb);
}
spin_unlock_irqrestore(&hdev->cmd_q.lock, flags);
-
-call_complete:
- if (req_complete)
- req_complete(hdev, status, status ? opcode : HCI_OP_NOP);
}
static void hci_rx_work(struct work_struct *work)
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index e6255833a258..7db4220941cc 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -114,6 +114,30 @@ static const struct file_operations features_fops = {
.release = single_release,
};
+static int device_id_show(struct seq_file *f, void *ptr)
+{
+ struct hci_dev *hdev = f->private;
+
+ hci_dev_lock(hdev);
+ seq_printf(f, "%4.4x:%4.4x:%4.4x:%4.4x\n", hdev->devid_source,
+ hdev->devid_vendor, hdev->devid_product, hdev->devid_version);
+ hci_dev_unlock(hdev);
+
+ return 0;
+}
+
+static int device_id_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, device_id_show, inode->i_private);
+}
+
+static const struct file_operations device_id_fops = {
+ .open = device_id_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static int device_list_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
@@ -335,6 +359,8 @@ void hci_debugfs_create_common(struct hci_dev *hdev)
debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev);
debugfs_create_u8("hardware_error", 0444, hdev->debugfs,
&hdev->hw_error_code);
+ debugfs_create_file("device_id", 0444, hdev->debugfs, hdev,
+ &device_id_fops);
debugfs_create_file("device_list", 0444, hdev->debugfs, hdev,
&device_list_fops);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 62f92a508961..01031038eb0e 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1045,11 +1045,6 @@ static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
-
- hci_dev_lock(hdev);
- mgmt_read_local_oob_data_complete(hdev, rp->hash, rp->rand, NULL, NULL,
- rp->status);
- hci_dev_unlock(hdev);
}
static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
@@ -1058,15 +1053,8 @@ static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
-
- hci_dev_lock(hdev);
- mgmt_read_local_oob_data_complete(hdev, rp->hash192, rp->rand192,
- rp->hash256, rp->rand256,
- rp->status);
- hci_dev_unlock(hdev);
}
-
static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
{
__u8 status = *((__u8 *) skb->data);
@@ -2732,17 +2720,19 @@ unlock:
hci_dev_unlock(hdev);
}
-static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
+ u16 *opcode, u8 *status,
+ hci_req_complete_t *req_complete,
+ hci_req_complete_skb_t *req_complete_skb)
{
struct hci_ev_cmd_complete *ev = (void *) skb->data;
- u8 status = skb->data[sizeof(*ev)];
- __u16 opcode;
- skb_pull(skb, sizeof(*ev));
+ *opcode = __le16_to_cpu(ev->opcode);
+ *status = skb->data[sizeof(*ev)];
- opcode = __le16_to_cpu(ev->opcode);
+ skb_pull(skb, sizeof(*ev));
- switch (opcode) {
+ switch (*opcode) {
case HCI_OP_INQUIRY_CANCEL:
hci_cc_inquiry_cancel(hdev, skb);
break;
@@ -3020,32 +3010,36 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
break;
default:
- BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
+ BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
break;
}
- if (opcode != HCI_OP_NOP)
+ if (*opcode != HCI_OP_NOP)
cancel_delayed_work(&hdev->cmd_timer);
- hci_req_cmd_complete(hdev, opcode, status);
-
- if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
+ if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
atomic_set(&hdev->cmd_cnt, 1);
- if (!skb_queue_empty(&hdev->cmd_q))
- queue_work(hdev->workqueue, &hdev->cmd_work);
- }
+
+ hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
+ req_complete_skb);
+
+ if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
+ queue_work(hdev->workqueue, &hdev->cmd_work);
}
-static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb,
+ u16 *opcode, u8 *status,
+ hci_req_complete_t *req_complete,
+ hci_req_complete_skb_t *req_complete_skb)
{
struct hci_ev_cmd_status *ev = (void *) skb->data;
- __u16 opcode;
skb_pull(skb, sizeof(*ev));
- opcode = __le16_to_cpu(ev->opcode);
+ *opcode = __le16_to_cpu(ev->opcode);
+ *status = ev->status;
- switch (opcode) {
+ switch (*opcode) {
case HCI_OP_INQUIRY:
hci_cs_inquiry(hdev, ev->status);
break;
@@ -3115,22 +3109,29 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
break;
default:
- BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
+ BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
break;
}
- if (opcode != HCI_OP_NOP)
+ if (*opcode != HCI_OP_NOP)
cancel_delayed_work(&hdev->cmd_timer);
+ if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
+ atomic_set(&hdev->cmd_cnt, 1);
+
+ /* Indicate request completion if the command failed. Also, if
+ * we're not waiting for a special event and we get a success
+ * command status we should try to flag the request as completed
+ * (since for this kind of commands there will not be a command
+ * complete event).
+ */
if (ev->status ||
- (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req_event))
- hci_req_cmd_complete(hdev, opcode, ev->status);
+ (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))
+ hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
+ req_complete_skb);
- if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
- atomic_set(&hdev->cmd_cnt, 1);
- if (!skb_queue_empty(&hdev->cmd_q))
- queue_work(hdev->workqueue, &hdev->cmd_work);
- }
+ if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
+ queue_work(hdev->workqueue, &hdev->cmd_work);
}
static void hci_hardware_error_evt(struct hci_dev *hdev, struct sk_buff *skb)
@@ -5031,32 +5032,79 @@ static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
amp_read_loc_assoc_final_data(hdev, hcon);
}
-void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
+static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
+ u8 event, struct sk_buff *skb)
{
- struct hci_event_hdr *hdr = (void *) skb->data;
- __u8 event = hdr->evt;
+ struct hci_ev_cmd_complete *ev;
+ struct hci_event_hdr *hdr;
- hci_dev_lock(hdev);
+ if (!skb)
+ return false;
- /* Received events are (currently) only needed when a request is
- * ongoing so avoid unnecessary memory allocation.
- */
- if (hci_req_pending(hdev)) {
- kfree_skb(hdev->recv_evt);
- hdev->recv_evt = skb_clone(skb, GFP_KERNEL);
+ if (skb->len < sizeof(*hdr)) {
+ BT_ERR("Too short HCI event");
+ return false;
}
- hci_dev_unlock(hdev);
-
+ hdr = (void *) skb->data;
skb_pull(skb, HCI_EVENT_HDR_SIZE);
- if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req_event == event) {
- struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
- u16 opcode = __le16_to_cpu(cmd_hdr->opcode);
+ if (event) {
+ if (hdr->evt != event)
+ return false;
+ return true;
+ }
+
+ if (hdr->evt != HCI_EV_CMD_COMPLETE) {
+ BT_DBG("Last event is not cmd complete (0x%2.2x)", hdr->evt);
+ return false;
+ }
+
+ if (skb->len < sizeof(*ev)) {
+ BT_ERR("Too short cmd_complete event");
+ return false;
+ }
+
+ ev = (void *) skb->data;
+ skb_pull(skb, sizeof(*ev));
- hci_req_cmd_complete(hdev, opcode, 0);
+ if (opcode != __le16_to_cpu(ev->opcode)) {
+ BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
+ __le16_to_cpu(ev->opcode));
+ return false;
}
+ return true;
+}
+
+void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_event_hdr *hdr = (void *) skb->data;
+ hci_req_complete_t req_complete = NULL;
+ hci_req_complete_skb_t req_complete_skb = NULL;
+ struct sk_buff *orig_skb = NULL;
+ u8 status = 0, event = hdr->evt, req_evt = 0;
+ u16 opcode = HCI_OP_NOP;
+
+ if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
+ struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
+ opcode = __le16_to_cpu(cmd_hdr->opcode);
+ hci_req_cmd_complete(hdev, opcode, status, &req_complete,
+ &req_complete_skb);
+ req_evt = event;
+ }
+
+ /* If it looks like we might end up having to call
+ * req_complete_skb, store a pristine copy of the skb since the
+ * various handlers may modify the original one through
+ * skb_pull() calls, etc.
+ */
+ if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
+ event == HCI_EV_CMD_COMPLETE)
+ orig_skb = skb_clone(skb, GFP_KERNEL);
+
+ skb_pull(skb, HCI_EVENT_HDR_SIZE);
+
switch (event) {
case HCI_EV_INQUIRY_COMPLETE:
hci_inquiry_complete_evt(hdev, skb);
@@ -5099,11 +5147,13 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
break;
case HCI_EV_CMD_COMPLETE:
- hci_cmd_complete_evt(hdev, skb);
+ hci_cmd_complete_evt(hdev, skb, &opcode, &status,
+ &req_complete, &req_complete_skb);
break;
case HCI_EV_CMD_STATUS:
- hci_cmd_status_evt(hdev, skb);
+ hci_cmd_status_evt(hdev, skb, &opcode, &status, &req_complete,
+ &req_complete_skb);
break;
case HCI_EV_HARDWARE_ERROR:
@@ -5235,6 +5285,17 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
break;
}
+ if (req_complete) {
+ req_complete(hdev, status, opcode);
+ } else if (req_complete_skb) {
+ if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
+ kfree_skb(orig_skb);
+ orig_skb = NULL;
+ }
+ req_complete_skb(hdev, status, opcode, orig_skb);
+ }
+
+ kfree_skb(orig_skb);
kfree_skb(skb);
hdev->stat.evt_rx++;
}
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 55e096d20a0f..d6025d6e6d59 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -34,7 +34,8 @@ void hci_req_init(struct hci_request *req, struct hci_dev *hdev)
req->err = 0;
}
-int hci_req_run(struct hci_request *req, hci_req_complete_t complete)
+static int req_run(struct hci_request *req, hci_req_complete_t complete,
+ hci_req_complete_skb_t complete_skb)
{
struct hci_dev *hdev = req->hdev;
struct sk_buff *skb;
@@ -55,7 +56,8 @@ int hci_req_run(struct hci_request *req, hci_req_complete_t complete)
return -ENODATA;
skb = skb_peek_tail(&req->cmd_q);
- bt_cb(skb)->req_complete = complete;
+ bt_cb(skb)->req.complete = complete;
+ bt_cb(skb)->req.complete_skb = complete_skb;
spin_lock_irqsave(&hdev->cmd_q.lock, flags);
skb_queue_splice_tail(&req->cmd_q, &hdev->cmd_q);
@@ -66,6 +68,16 @@ int hci_req_run(struct hci_request *req, hci_req_complete_t complete)
return 0;
}
+int hci_req_run(struct hci_request *req, hci_req_complete_t complete)
+{
+ return req_run(req, complete, NULL);
+}
+
+int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete)
+{
+ return req_run(req, NULL, complete);
+}
+
struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param)
{
@@ -116,9 +128,9 @@ void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
}
if (skb_queue_empty(&req->cmd_q))
- bt_cb(skb)->req_start = 1;
+ bt_cb(skb)->req.start = true;
- bt_cb(skb)->req_event = event;
+ bt_cb(skb)->req.event = event;
skb_queue_tail(&req->cmd_q, skb);
}
diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h
index adf074d33544..bf6df92f42db 100644
--- a/net/bluetooth/hci_request.h
+++ b/net/bluetooth/hci_request.h
@@ -32,11 +32,14 @@ struct hci_request {
void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
+int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
const void *param);
void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
const void *param, u8 event);
-void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status);
+void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
+ hci_req_complete_t *req_complete,
+ hci_req_complete_skb_t *req_complete_skb);
struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param);
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 85a44a7dc150..56f9edbf3d05 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1164,7 +1164,7 @@ static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg,
/* Stand-alone HCI commands must be flagged as
* single-command requests.
*/
- bt_cb(skb)->req_start = 1;
+ bt_cb(skb)->req.start = true;
skb_queue_tail(&hdev->cmd_q, skb);
queue_work(hdev->workqueue, &hdev->cmd_work);
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 07348e142f16..a05b9dbf14c9 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -70,10 +70,11 @@ static void hidp_session_terminate(struct hidp_session *s);
static void hidp_copy_session(struct hidp_session *session, struct hidp_conninfo *ci)
{
+ u32 valid_flags = 0;
memset(ci, 0, sizeof(*ci));
bacpy(&ci->bdaddr, &session->bdaddr);
- ci->flags = session->flags;
+ ci->flags = session->flags & valid_flags;
ci->state = BT_CONNECTED;
if (session->input) {
@@ -907,7 +908,7 @@ static int hidp_session_new(struct hidp_session **out, const bdaddr_t *bdaddr,
kref_init(&session->ref);
atomic_set(&session->state, HIDP_SESSION_IDLING);
init_waitqueue_head(&session->state_queue);
- session->flags = req->flags & (1 << HIDP_BLUETOOTH_VENDOR_ID);
+ session->flags = req->flags & BIT(HIDP_BLUETOOTH_VENDOR_ID);
/* connection management */
bacpy(&session->bdaddr, bdaddr);
@@ -1312,6 +1313,7 @@ int hidp_connection_add(struct hidp_connadd_req *req,
struct socket *ctrl_sock,
struct socket *intr_sock)
{
+ u32 valid_flags = 0;
struct hidp_session *session;
struct l2cap_conn *conn;
struct l2cap_chan *chan;
@@ -1321,6 +1323,9 @@ int hidp_connection_add(struct hidp_connadd_req *req,
if (ret)
return ret;
+ if (req->flags & ~valid_flags)
+ return -EINVAL;
+
chan = l2cap_pi(ctrl_sock->sk)->chan;
conn = NULL;
l2cap_chan_lock(chan);
@@ -1351,13 +1356,17 @@ out_conn:
int hidp_connection_del(struct hidp_conndel_req *req)
{
+ u32 valid_flags = BIT(HIDP_VIRTUAL_CABLE_UNPLUG);
struct hidp_session *session;
+ if (req->flags & ~valid_flags)
+ return -EINVAL;
+
session = hidp_session_find(&req->bdaddr);
if (!session)
return -ENOENT;
- if (req->flags & (1 << HIDP_VIRTUAL_CABLE_UNPLUG))
+ if (req->flags & BIT(HIDP_VIRTUAL_CABLE_UNPLUG))
hidp_send_ctrl_message(session,
HIDP_TRANS_HID_CONTROL |
HIDP_CTRL_VIRTUAL_CABLE_UNPLUG,
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index d69861c89bb5..dad419782a12 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -292,7 +292,7 @@ static struct sk_buff *l2cap_ertm_seq_in_queue(struct sk_buff_head *head,
struct sk_buff *skb;
skb_queue_walk(head, skb) {
- if (bt_cb(skb)->control.txseq == seq)
+ if (bt_cb(skb)->l2cap.txseq == seq)
return skb;
}
@@ -954,11 +954,11 @@ static inline void __unpack_control(struct l2cap_chan *chan,
{
if (test_bit(FLAG_EXT_CTRL, &chan->flags)) {
__unpack_extended_control(get_unaligned_le32(skb->data),
- &bt_cb(skb)->control);
+ &bt_cb(skb)->l2cap);
skb_pull(skb, L2CAP_EXT_CTRL_SIZE);
} else {
__unpack_enhanced_control(get_unaligned_le16(skb->data),
- &bt_cb(skb)->control);
+ &bt_cb(skb)->l2cap);
skb_pull(skb, L2CAP_ENH_CTRL_SIZE);
}
}
@@ -1200,8 +1200,8 @@ static void l2cap_move_setup(struct l2cap_chan *chan)
chan->retry_count = 0;
skb_queue_walk(&chan->tx_q, skb) {
- if (bt_cb(skb)->control.retries)
- bt_cb(skb)->control.retries = 1;
+ if (bt_cb(skb)->l2cap.retries)
+ bt_cb(skb)->l2cap.retries = 1;
else
break;
}
@@ -1846,8 +1846,8 @@ static void l2cap_streaming_send(struct l2cap_chan *chan,
skb = skb_dequeue(&chan->tx_q);
- bt_cb(skb)->control.retries = 1;
- control = &bt_cb(skb)->control;
+ bt_cb(skb)->l2cap.retries = 1;
+ control = &bt_cb(skb)->l2cap;
control->reqseq = 0;
control->txseq = chan->next_tx_seq;
@@ -1891,8 +1891,8 @@ static int l2cap_ertm_send(struct l2cap_chan *chan)
skb = chan->tx_send_head;
- bt_cb(skb)->control.retries = 1;
- control = &bt_cb(skb)->control;
+ bt_cb(skb)->l2cap.retries = 1;
+ control = &bt_cb(skb)->l2cap;
if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
control->final = 1;
@@ -1963,11 +1963,11 @@ static void l2cap_ertm_resend(struct l2cap_chan *chan)
continue;
}
- bt_cb(skb)->control.retries++;
- control = bt_cb(skb)->control;
+ bt_cb(skb)->l2cap.retries++;
+ control = bt_cb(skb)->l2cap;
if (chan->max_tx != 0 &&
- bt_cb(skb)->control.retries > chan->max_tx) {
+ bt_cb(skb)->l2cap.retries > chan->max_tx) {
BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
l2cap_send_disconn_req(chan, ECONNRESET);
l2cap_seq_list_clear(&chan->retrans_list);
@@ -2045,7 +2045,7 @@ static void l2cap_retransmit_all(struct l2cap_chan *chan,
if (chan->unacked_frames) {
skb_queue_walk(&chan->tx_q, skb) {
- if (bt_cb(skb)->control.txseq == control->reqseq ||
+ if (bt_cb(skb)->l2cap.txseq == control->reqseq ||
skb == chan->tx_send_head)
break;
}
@@ -2055,7 +2055,7 @@ static void l2cap_retransmit_all(struct l2cap_chan *chan,
break;
l2cap_seq_list_append(&chan->retrans_list,
- bt_cb(skb)->control.txseq);
+ bt_cb(skb)->l2cap.txseq);
}
l2cap_ertm_resend(chan);
@@ -2267,8 +2267,8 @@ static struct sk_buff *l2cap_create_iframe_pdu(struct l2cap_chan *chan,
return ERR_PTR(err);
}
- bt_cb(skb)->control.fcs = chan->fcs;
- bt_cb(skb)->control.retries = 0;
+ bt_cb(skb)->l2cap.fcs = chan->fcs;
+ bt_cb(skb)->l2cap.retries = 0;
return skb;
}
@@ -2321,7 +2321,7 @@ static int l2cap_segment_sdu(struct l2cap_chan *chan,
return PTR_ERR(skb);
}
- bt_cb(skb)->control.sar = sar;
+ bt_cb(skb)->l2cap.sar = sar;
__skb_queue_tail(seg_queue, skb);
len -= pdu_len;
@@ -2856,7 +2856,7 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
continue;
/* Don't send frame to the channel it came from */
- if (bt_cb(skb)->chan == chan)
+ if (bt_cb(skb)->l2cap.chan == chan)
continue;
nskb = skb_clone(skb, GFP_KERNEL);
@@ -5918,7 +5918,7 @@ static int l2cap_rx_queued_iframes(struct l2cap_chan *chan)
skb_unlink(skb, &chan->srej_q);
chan->buffer_seq = __next_seq(chan, chan->buffer_seq);
- err = l2cap_reassemble_sdu(chan, skb, &bt_cb(skb)->control);
+ err = l2cap_reassemble_sdu(chan, skb, &bt_cb(skb)->l2cap);
if (err)
break;
}
@@ -5952,7 +5952,7 @@ static void l2cap_handle_srej(struct l2cap_chan *chan,
return;
}
- if (chan->max_tx != 0 && bt_cb(skb)->control.retries >= chan->max_tx) {
+ if (chan->max_tx != 0 && bt_cb(skb)->l2cap.retries >= chan->max_tx) {
BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
l2cap_send_disconn_req(chan, ECONNRESET);
return;
@@ -6005,7 +6005,7 @@ static void l2cap_handle_rej(struct l2cap_chan *chan,
skb = l2cap_ertm_seq_in_queue(&chan->tx_q, control->reqseq);
if (chan->max_tx && skb &&
- bt_cb(skb)->control.retries >= chan->max_tx) {
+ bt_cb(skb)->l2cap.retries >= chan->max_tx) {
BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
l2cap_send_disconn_req(chan, ECONNRESET);
return;
@@ -6565,7 +6565,7 @@ static int l2cap_stream_rx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
{
- struct l2cap_ctrl *control = &bt_cb(skb)->control;
+ struct l2cap_ctrl *control = &bt_cb(skb)->l2cap;
u16 len;
u8 event;
@@ -6864,8 +6864,8 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
goto drop;
/* Store remote BD_ADDR and PSM for msg_name */
- bacpy(&bt_cb(skb)->bdaddr, &hcon->dst);
- bt_cb(skb)->psm = psm;
+ bacpy(&bt_cb(skb)->l2cap.bdaddr, &hcon->dst);
+ bt_cb(skb)->l2cap.psm = psm;
if (!chan->ops->recv(chan, skb)) {
l2cap_chan_put(chan);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 9070720eedc8..a7278f05eafb 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1330,7 +1330,7 @@ static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
skb->priority = sk->sk_priority;
- bt_cb(skb)->chan = chan;
+ bt_cb(skb)->l2cap.chan = chan;
return skb;
}
@@ -1444,8 +1444,8 @@ static void l2cap_skb_msg_name(struct sk_buff *skb, void *msg_name,
memset(la, 0, sizeof(struct sockaddr_l2));
la->l2_family = AF_BLUETOOTH;
- la->l2_psm = bt_cb(skb)->psm;
- bacpy(&la->l2_bdaddr, &bt_cb(skb)->bdaddr);
+ la->l2_psm = bt_cb(skb)->l2cap.psm;
+ bacpy(&la->l2_bdaddr, &bt_cb(skb)->l2cap.bdaddr);
*msg_namelen = sizeof(struct sockaddr_l2);
}
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index fb2e764c6211..845dfcc43a20 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -985,14 +985,27 @@ static u32 get_adv_instance_flags(struct hci_dev *hdev, u8 instance)
/* Instance 0 always manages the "Tx Power" and "Flags" fields */
flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS;
- /* For instance 0, assemble the flags from global settings */
- if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE) ||
- get_connectable(hdev))
+ /* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting corresponds
+ * to the "connectable" instance flag.
+ */
+ if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE))
flags |= MGMT_ADV_FLAG_CONNECTABLE;
return flags;
}
+static u8 get_adv_instance_scan_rsp_len(struct hci_dev *hdev, u8 instance)
+{
+ /* Ignore instance 0 and other unsupported instances */
+ if (instance != 0x01)
+ return 0;
+
+ /* TODO: Take into account the "appearance" and "local-name" flags here.
+ * These are currently being ignored as they are not supported.
+ */
+ return hdev->adv_instance.scan_rsp_len;
+}
+
static u8 create_instance_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr)
{
u8 ad_len = 0, flags = 0;
@@ -1030,6 +1043,14 @@ static u8 create_instance_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr)
}
}
+ if (instance) {
+ memcpy(ptr, hdev->adv_instance.adv_data,
+ hdev->adv_instance.adv_data_len);
+
+ ad_len += hdev->adv_instance.adv_data_len;
+ ptr += hdev->adv_instance.adv_data_len;
+ }
+
/* Provide Tx Power only if we can provide a valid value for it */
if (hdev->adv_tx_power != HCI_TX_POWER_INVALID &&
(instance_flags & MGMT_ADV_FLAG_TX_POWER)) {
@@ -1041,12 +1062,6 @@ static u8 create_instance_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr)
ptr += 3;
}
- if (instance) {
- memcpy(ptr, hdev->adv_instance.adv_data,
- hdev->adv_instance.adv_data_len);
- ad_len += hdev->adv_instance.adv_data_len;
- }
-
return ad_len;
}
@@ -1242,7 +1257,12 @@ static void enable_advertising(struct hci_request *req)
instance = get_current_adv_instance(hdev);
flags = get_adv_instance_flags(hdev, instance);
- connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE);
+
+ /* If the "connectable" instance flag was not set, then choose between
+ * ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
+ */
+ connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE) ||
+ get_connectable(hdev);
/* Set require_privacy to true only when non-connectable
* advertising is used. In that case it is fine to use a
@@ -1254,7 +1274,14 @@ static void enable_advertising(struct hci_request *req)
memset(&cp, 0, sizeof(cp));
cp.min_interval = cpu_to_le16(hdev->le_adv_min_interval);
cp.max_interval = cpu_to_le16(hdev->le_adv_max_interval);
- cp.type = connectable ? LE_ADV_IND : LE_ADV_NONCONN_IND;
+
+ if (connectable)
+ cp.type = LE_ADV_IND;
+ else if (get_adv_instance_scan_rsp_len(hdev, instance))
+ cp.type = LE_ADV_SCAN_IND;
+ else
+ cp.type = LE_ADV_NONCONN_IND;
+
cp.own_address_type = own_addr_type;
cp.channel_map = hdev->le_adv_channel_map;
@@ -2088,7 +2115,8 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
no_scan_update:
/* Update the advertising parameters if necessary */
- if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
+ if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
+ hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
enable_advertising(&req);
err = hci_req_run(&req, set_connectable_complete);
@@ -3757,10 +3785,70 @@ failed:
return err;
}
+static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status,
+ u16 opcode, struct sk_buff *skb)
+{
+ struct mgmt_rp_read_local_oob_data mgmt_rp;
+ size_t rp_size = sizeof(mgmt_rp);
+ struct mgmt_pending_cmd *cmd;
+
+ BT_DBG("%s status %u", hdev->name, status);
+
+ cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
+ if (!cmd)
+ return;
+
+ if (status || !skb) {
+ mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
+ status ? mgmt_status(status) : MGMT_STATUS_FAILED);
+ goto remove;
+ }
+
+ memset(&mgmt_rp, 0, sizeof(mgmt_rp));
+
+ if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
+ struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
+
+ if (skb->len < sizeof(*rp)) {
+ mgmt_cmd_status(cmd->sk, hdev->id,
+ MGMT_OP_READ_LOCAL_OOB_DATA,
+ MGMT_STATUS_FAILED);
+ goto remove;
+ }
+
+ memcpy(mgmt_rp.hash192, rp->hash, sizeof(rp->hash));
+ memcpy(mgmt_rp.rand192, rp->rand, sizeof(rp->rand));
+
+ rp_size -= sizeof(mgmt_rp.hash256) + sizeof(mgmt_rp.rand256);
+ } else {
+ struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
+
+ if (skb->len < sizeof(*rp)) {
+ mgmt_cmd_status(cmd->sk, hdev->id,
+ MGMT_OP_READ_LOCAL_OOB_DATA,
+ MGMT_STATUS_FAILED);
+ goto remove;
+ }
+
+ memcpy(mgmt_rp.hash192, rp->hash192, sizeof(rp->hash192));
+ memcpy(mgmt_rp.rand192, rp->rand192, sizeof(rp->rand192));
+
+ memcpy(mgmt_rp.hash256, rp->hash256, sizeof(rp->hash256));
+ memcpy(mgmt_rp.rand256, rp->rand256, sizeof(rp->rand256));
+ }
+
+ mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
+ MGMT_STATUS_SUCCESS, &mgmt_rp, rp_size);
+
+remove:
+ mgmt_pending_remove(cmd);
+}
+
static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
void *data, u16 data_len)
{
struct mgmt_pending_cmd *cmd;
+ struct hci_request req;
int err;
BT_DBG("%s", hdev->name);
@@ -3791,12 +3879,14 @@ static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
goto unlock;
}
+ hci_req_init(&req, hdev);
+
if (bredr_sc_enabled(hdev))
- err = hci_send_cmd(hdev, HCI_OP_READ_LOCAL_OOB_EXT_DATA,
- 0, NULL);
+ hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
else
- err = hci_send_cmd(hdev, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
+ hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
+ err = hci_req_run_skb(&req, read_local_oob_data_complete);
if (err < 0)
mgmt_pending_remove(cmd);
@@ -6388,46 +6478,41 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
BT_DBG("%s", hdev->name);
- if (!hdev_is_powered(hdev))
- return mgmt_cmd_complete(sk, hdev->id,
- MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
- MGMT_STATUS_NOT_POWERED,
- &cp->type, sizeof(cp->type));
-
- switch (cp->type) {
- case BIT(BDADDR_BREDR):
- status = mgmt_bredr_support(hdev);
- if (status)
- return mgmt_cmd_complete(sk, hdev->id,
- MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
- status, &cp->type,
- sizeof(cp->type));
- eir_len = 5;
- break;
- case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
- status = mgmt_le_support(hdev);
- if (status)
- return mgmt_cmd_complete(sk, hdev->id,
- MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
- status, &cp->type,
- sizeof(cp->type));
- eir_len = 9 + 3 + 18 + 18 + 3;
- break;
- default:
- return mgmt_cmd_complete(sk, hdev->id,
- MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
- MGMT_STATUS_INVALID_PARAMS,
- &cp->type, sizeof(cp->type));
+ if (hdev_is_powered(hdev)) {
+ switch (cp->type) {
+ case BIT(BDADDR_BREDR):
+ status = mgmt_bredr_support(hdev);
+ if (status)
+ eir_len = 0;
+ else
+ eir_len = 5;
+ break;
+ case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
+ status = mgmt_le_support(hdev);
+ if (status)
+ eir_len = 0;
+ else
+ eir_len = 9 + 3 + 18 + 18 + 3;
+ break;
+ default:
+ status = MGMT_STATUS_INVALID_PARAMS;
+ eir_len = 0;
+ break;
+ }
+ } else {
+ status = MGMT_STATUS_NOT_POWERED;
+ eir_len = 0;
}
- hci_dev_lock(hdev);
-
rp_len = sizeof(*rp) + eir_len;
rp = kmalloc(rp_len, GFP_ATOMIC);
- if (!rp) {
- hci_dev_unlock(hdev);
+ if (!rp)
return -ENOMEM;
- }
+
+ if (status)
+ goto complete;
+
+ hci_dev_lock(hdev);
eir_len = 0;
switch (cp->type) {
@@ -6439,20 +6524,30 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
if (hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
smp_generate_oob(hdev, hash, rand) < 0) {
hci_dev_unlock(hdev);
- err = mgmt_cmd_complete(sk, hdev->id,
- MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
- MGMT_STATUS_FAILED,
- &cp->type, sizeof(cp->type));
- goto done;
+ status = MGMT_STATUS_FAILED;
+ goto complete;
}
+ /* This should return the active RPA, but since the RPA
+ * is only programmed on demand, it is really hard to fill
+ * this in at the moment. For now disallow retrieving
+ * local out-of-band data when privacy is in use.
+ *
+ * Returning the identity address will not help here since
+ * pairing happens before the identity resolving key is
+ * known and thus the connection establishment happens
+ * based on the RPA and not the identity address.
+ */
if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
- memcpy(addr, &hdev->rpa, 6);
- addr[6] = 0x01;
- } else if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
- !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
- (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
- bacmp(&hdev->static_addr, BDADDR_ANY))) {
+ hci_dev_unlock(hdev);
+ status = MGMT_STATUS_REJECTED;
+ goto complete;
+ }
+
+ if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
+ !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
+ (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
+ bacmp(&hdev->static_addr, BDADDR_ANY))) {
memcpy(addr, &hdev->static_addr, 6);
addr[6] = 0x01;
} else {
@@ -6491,16 +6586,19 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
break;
}
- rp->type = cp->type;
- rp->eir_len = cpu_to_le16(eir_len);
-
hci_dev_unlock(hdev);
hci_sock_set_flag(sk, HCI_MGMT_OOB_DATA_EVENTS);
+ status = MGMT_STATUS_SUCCESS;
+
+complete:
+ rp->type = cp->type;
+ rp->eir_len = cpu_to_le16(eir_len);
+
err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
- MGMT_STATUS_SUCCESS, rp, sizeof(*rp) + eir_len);
- if (err < 0)
+ status, rp, sizeof(*rp) + eir_len);
+ if (err < 0 || status)
goto done;
err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
@@ -7899,43 +7997,6 @@ void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
cmd ? cmd->sk : NULL);
}
-void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192,
- u8 *rand192, u8 *hash256, u8 *rand256,
- u8 status)
-{
- struct mgmt_pending_cmd *cmd;
-
- BT_DBG("%s status %u", hdev->name, status);
-
- cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
- if (!cmd)
- return;
-
- if (status) {
- mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
- mgmt_status(status));
- } else {
- struct mgmt_rp_read_local_oob_data rp;
- size_t rp_size = sizeof(rp);
-
- memcpy(rp.hash192, hash192, sizeof(rp.hash192));
- memcpy(rp.rand192, rand192, sizeof(rp.rand192));
-
- if (bredr_sc_enabled(hdev) && hash256 && rand256) {
- memcpy(rp.hash256, hash256, sizeof(rp.hash256));
- memcpy(rp.rand256, rand256, sizeof(rp.rand256));
- } else {
- rp_size -= sizeof(rp.hash256) + sizeof(rp.rand256);
- }
-
- mgmt_cmd_complete(cmd->sk, hdev->id,
- MGMT_OP_READ_LOCAL_OOB_DATA, 0,
- &rp, rp_size);
- }
-
- mgmt_pending_remove(cmd);
-}
-
static inline bool has_uuid(u8 *uuid, u16 uuid_count, u8 (*uuids)[16])
{
int i;
diff --git a/net/bluetooth/selftest.c b/net/bluetooth/selftest.c
index 378f4064952c..dc688f13e496 100644
--- a/net/bluetooth/selftest.c
+++ b/net/bluetooth/selftest.c
@@ -21,6 +21,8 @@
SOFTWARE IS DISCLAIMED.
*/
+#include <linux/debugfs.h>
+
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -154,6 +156,21 @@ static int __init test_ecdh_sample(const u8 priv_a[32], const u8 priv_b[32],
return 0;
}
+static char test_ecdh_buffer[32];
+
+static ssize_t test_ecdh_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ return simple_read_from_buffer(user_buf, count, ppos, test_ecdh_buffer,
+ strlen(test_ecdh_buffer));
+}
+
+static const struct file_operations test_ecdh_fops = {
+ .open = simple_open,
+ .read = test_ecdh_read,
+ .llseek = default_llseek,
+};
+
static int __init test_ecdh(void)
{
ktime_t calltime, delta, rettime;
@@ -165,19 +182,19 @@ static int __init test_ecdh(void)
err = test_ecdh_sample(priv_a_1, priv_b_1, pub_a_1, pub_b_1, dhkey_1);
if (err) {
BT_ERR("ECDH sample 1 failed");
- return err;
+ goto done;
}
err = test_ecdh_sample(priv_a_2, priv_b_2, pub_a_2, pub_b_2, dhkey_2);
if (err) {
BT_ERR("ECDH sample 2 failed");
- return err;
+ goto done;
}
err = test_ecdh_sample(priv_a_3, priv_a_3, pub_a_3, pub_a_3, dhkey_3);
if (err) {
BT_ERR("ECDH sample 3 failed");
- return err;
+ goto done;
}
rettime = ktime_get();
@@ -186,7 +203,17 @@ static int __init test_ecdh(void)
BT_INFO("ECDH test passed in %llu usecs", duration);
- return 0;
+done:
+ if (!err)
+ snprintf(test_ecdh_buffer, sizeof(test_ecdh_buffer),
+ "PASS (%llu usecs)\n", duration);
+ else
+ snprintf(test_ecdh_buffer, sizeof(test_ecdh_buffer), "FAIL\n");
+
+ debugfs_create_file("selftest_ecdh", 0444, bt_debugfs, NULL,
+ &test_ecdh_fops);
+
+ return err;
}
#else
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 1ec3f66b5a74..1ab3dc9c8f99 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -3017,7 +3017,7 @@ static struct sk_buff *smp_alloc_skb_cb(struct l2cap_chan *chan,
return ERR_PTR(-ENOMEM);
skb->priority = HCI_PRIO_MAX;
- bt_cb(skb)->chan = chan;
+ bt_cb(skb)->l2cap.chan = chan;
return skb;
}
@@ -3549,6 +3549,21 @@ static int __init test_h6(struct crypto_hash *tfm_cmac)
return 0;
}
+static char test_smp_buffer[32];
+
+static ssize_t test_smp_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ return simple_read_from_buffer(user_buf, count, ppos, test_smp_buffer,
+ strlen(test_smp_buffer));
+}
+
+static const struct file_operations test_smp_fops = {
+ .open = simple_open,
+ .read = test_smp_read,
+ .llseek = default_llseek,
+};
+
static int __init run_selftests(struct crypto_blkcipher *tfm_aes,
struct crypto_hash *tfm_cmac)
{
@@ -3561,49 +3576,49 @@ static int __init run_selftests(struct crypto_blkcipher *tfm_aes,
err = test_ah(tfm_aes);
if (err) {
BT_ERR("smp_ah test failed");
- return err;
+ goto done;
}
err = test_c1(tfm_aes);
if (err) {
BT_ERR("smp_c1 test failed");
- return err;
+ goto done;
}
err = test_s1(tfm_aes);
if (err) {
BT_ERR("smp_s1 test failed");
- return err;
+ goto done;
}
err = test_f4(tfm_cmac);
if (err) {
BT_ERR("smp_f4 test failed");
- return err;
+ goto done;
}
err = test_f5(tfm_cmac);
if (err) {
BT_ERR("smp_f5 test failed");
- return err;
+ goto done;
}
err = test_f6(tfm_cmac);
if (err) {
BT_ERR("smp_f6 test failed");
- return err;
+ goto done;
}
err = test_g2(tfm_cmac);
if (err) {
BT_ERR("smp_g2 test failed");
- return err;
+ goto done;
}
err = test_h6(tfm_cmac);
if (err) {
BT_ERR("smp_h6 test failed");
- return err;
+ goto done;
}
rettime = ktime_get();
@@ -3612,7 +3627,17 @@ static int __init run_selftests(struct crypto_blkcipher *tfm_aes,
BT_INFO("SMP test passed in %llu usecs", duration);
- return 0;
+done:
+ if (!err)
+ snprintf(test_smp_buffer, sizeof(test_smp_buffer),
+ "PASS (%llu usecs)\n", duration);
+ else
+ snprintf(test_smp_buffer, sizeof(test_smp_buffer), "FAIL\n");
+
+ debugfs_create_file("selftest_smp", 0444, bt_debugfs, NULL,
+ &test_smp_fops);
+
+ return err;
}
int __init bt_selftest_smp(void)
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index 3304a5442331..e97572b5d2cc 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -35,7 +35,7 @@ static inline int should_deliver(const struct net_bridge_port *p,
p->state == BR_STATE_FORWARDING;
}
-int br_dev_queue_push_xmit(struct sk_buff *skb)
+int br_dev_queue_push_xmit(struct sock *sk, struct sk_buff *skb)
{
if (!is_skb_forwardable(skb->dev, skb)) {
kfree_skb(skb);
@@ -49,9 +49,10 @@ int br_dev_queue_push_xmit(struct sk_buff *skb)
}
EXPORT_SYMBOL_GPL(br_dev_queue_push_xmit);
-int br_forward_finish(struct sk_buff *skb)
+int br_forward_finish(struct sock *sk, struct sk_buff *skb)
{
- return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev,
+ return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, sk, skb,
+ NULL, skb->dev,
br_dev_queue_push_xmit);
}
@@ -75,7 +76,8 @@ static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)
return;
}
- NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
+ NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
+ NULL, skb->dev,
br_forward_finish);
}
@@ -96,7 +98,8 @@ static void __br_forward(const struct net_bridge_port *to, struct sk_buff *skb)
skb->dev = to->dev;
skb_forward_csum(skb);
- NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, skb, indev, skb->dev,
+ NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, NULL, skb,
+ indev, skb->dev,
br_forward_finish);
}
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 052c5ebbc947..f921a5dce22d 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -55,8 +55,9 @@ static int br_pass_frame_up(struct sk_buff *skb)
if (!skb)
return NET_RX_DROP;
- return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, indev, NULL,
- netif_receive_skb);
+ return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, NULL, skb,
+ indev, NULL,
+ netif_receive_skb_sk);
}
static void br_do_proxy_arp(struct sk_buff *skb, struct net_bridge *br,
@@ -119,7 +120,7 @@ static void br_do_proxy_arp(struct sk_buff *skb, struct net_bridge *br,
}
/* note: already called with rcu_read_lock */
-int br_handle_frame_finish(struct sk_buff *skb)
+int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb)
{
const unsigned char *dest = eth_hdr(skb)->h_dest;
struct net_bridge_port *p = br_port_get_rcu(skb->dev);
@@ -207,7 +208,7 @@ drop:
EXPORT_SYMBOL_GPL(br_handle_frame_finish);
/* note: already called with rcu_read_lock */
-static int br_handle_local_finish(struct sk_buff *skb)
+static int br_handle_local_finish(struct sock *sk, struct sk_buff *skb)
{
struct net_bridge_port *p = br_port_get_rcu(skb->dev);
u16 vid = 0;
@@ -277,8 +278,8 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
}
/* Deliver packet to local host only */
- if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev,
- NULL, br_handle_local_finish)) {
+ if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, NULL, skb,
+ skb->dev, NULL, br_handle_local_finish)) {
return RX_HANDLER_CONSUMED; /* consumed by filter */
} else {
*pskb = skb;
@@ -302,7 +303,8 @@ forward:
if (ether_addr_equal(p->br->dev->dev_addr, dest))
skb->pkt_type = PACKET_HOST;
- NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
+ NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, NULL, skb,
+ skb->dev, NULL,
br_handle_frame_finish);
break;
default:
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index c465876c7861..4b6722f8f179 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -814,7 +814,8 @@ static void __br_multicast_send_query(struct net_bridge *br,
if (port) {
skb->dev = port->dev;
- NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
+ NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
+ NULL, skb->dev,
br_dev_queue_push_xmit);
} else {
br_multicast_select_own_querier(br, ip, skb);
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index e8ac7432acb6..ab55e2472beb 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -277,7 +277,7 @@ static void nf_bridge_update_protocol(struct sk_buff *skb)
/* PF_BRIDGE/PRE_ROUTING *********************************************/
/* Undo the changes made for ip6tables PREROUTING and continue the
* bridge PRE_ROUTING hook. */
-static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
+static int br_nf_pre_routing_finish_ipv6(struct sock *sk, struct sk_buff *skb)
{
struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
struct rtable *rt;
@@ -298,7 +298,8 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
skb->dev = nf_bridge->physindev;
nf_bridge_update_protocol(skb);
nf_bridge_push_encap_header(skb);
- NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
+ NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, sk, skb,
+ skb->dev, NULL,
br_handle_frame_finish, 1);
return 0;
@@ -309,7 +310,7 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
* don't, we use the neighbour framework to find out. In both cases, we make
* sure that br_handle_frame_finish() is called afterwards.
*/
-static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
+static int br_nf_pre_routing_finish_bridge(struct sock *sk, struct sk_buff *skb)
{
struct neighbour *neigh;
struct dst_entry *dst;
@@ -326,7 +327,7 @@ static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
if (neigh->hh.hh_len) {
neigh_hh_bridge(&neigh->hh, skb);
skb->dev = nf_bridge->physindev;
- ret = br_handle_frame_finish(skb);
+ ret = br_handle_frame_finish(sk, skb);
} else {
/* the neighbour function below overwrites the complete
* MAC header, so we save the Ethernet source address and
@@ -403,7 +404,7 @@ static bool dnat_took_place(const struct sk_buff *skb)
* device, we proceed as if ip_route_input() succeeded. If it differs from the
* logical bridge port or if ip_route_output_key() fails we drop the packet.
*/
-static int br_nf_pre_routing_finish(struct sk_buff *skb)
+static int br_nf_pre_routing_finish(struct sock *sk, struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct iphdr *iph = ip_hdr(skb);
@@ -456,7 +457,7 @@ bridged_dnat:
nf_bridge_push_encap_header(skb);
NF_HOOK_THRESH(NFPROTO_BRIDGE,
NF_BR_PRE_ROUTING,
- skb, skb->dev, NULL,
+ sk, skb, skb->dev, NULL,
br_nf_pre_routing_finish_bridge,
1);
return 0;
@@ -476,7 +477,8 @@ bridged_dnat:
skb->dev = nf_bridge->physindev;
nf_bridge_update_protocol(skb);
nf_bridge_push_encap_header(skb);
- NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
+ NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, sk, skb,
+ skb->dev, NULL,
br_handle_frame_finish, 1);
return 0;
@@ -579,9 +581,7 @@ bad:
* to ip6tables, which doesn't support NAT, so things are fairly simple. */
static unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
const struct ipv6hdr *hdr;
u32 pkt_len;
@@ -615,7 +615,8 @@ static unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops,
return NF_DROP;
skb->protocol = htons(ETH_P_IPV6);
- NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, skb, skb->dev, NULL,
+ NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, state->sk, skb,
+ skb->dev, NULL,
br_nf_pre_routing_finish_ipv6);
return NF_STOLEN;
@@ -629,9 +630,7 @@ static unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops,
* address to be able to detect DNAT afterwards. */
static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct net_bridge_port *p;
struct net_bridge *br;
@@ -640,7 +639,7 @@ static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
if (unlikely(!pskb_may_pull(skb, len)))
return NF_DROP;
- p = br_port_get_rcu(in);
+ p = br_port_get_rcu(state->in);
if (p == NULL)
return NF_DROP;
br = p->br;
@@ -650,7 +649,7 @@ static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
return NF_ACCEPT;
nf_bridge_pull_encap_header_rcsum(skb);
- return br_nf_pre_routing_ipv6(ops, skb, in, out, okfn);
+ return br_nf_pre_routing_ipv6(ops, skb, state);
}
if (!brnf_call_iptables && !br->nf_call_iptables)
@@ -672,7 +671,8 @@ static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
skb->protocol = htons(ETH_P_IP);
- NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, skb, skb->dev, NULL,
+ NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, state->sk, skb,
+ skb->dev, NULL,
br_nf_pre_routing_finish);
return NF_STOLEN;
@@ -688,16 +688,14 @@ static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
* prevent this from happening. */
static unsigned int br_nf_local_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
br_drop_fake_rtable(skb);
return NF_ACCEPT;
}
/* PF_BRIDGE/FORWARD *************************************************/
-static int br_nf_forward_finish(struct sk_buff *skb)
+static int br_nf_forward_finish(struct sock *sk, struct sk_buff *skb)
{
struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
struct net_device *in;
@@ -721,8 +719,8 @@ static int br_nf_forward_finish(struct sk_buff *skb)
}
nf_bridge_push_encap_header(skb);
- NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_FORWARD, skb, in,
- skb->dev, br_forward_finish, 1);
+ NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_FORWARD, sk, skb,
+ in, skb->dev, br_forward_finish, 1);
return 0;
}
@@ -734,9 +732,7 @@ static int br_nf_forward_finish(struct sk_buff *skb)
* bridge ports. */
static unsigned int br_nf_forward_ip(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nf_bridge_info *nf_bridge;
struct net_device *parent;
@@ -754,7 +750,7 @@ static unsigned int br_nf_forward_ip(const struct nf_hook_ops *ops,
if (!nf_bridge)
return NF_DROP;
- parent = bridge_parent(out);
+ parent = bridge_parent(state->out);
if (!parent)
return NF_DROP;
@@ -787,23 +783,22 @@ static unsigned int br_nf_forward_ip(const struct nf_hook_ops *ops,
else
skb->protocol = htons(ETH_P_IPV6);
- NF_HOOK(pf, NF_INET_FORWARD, skb, brnf_get_logical_dev(skb, in), parent,
- br_nf_forward_finish);
+ NF_HOOK(pf, NF_INET_FORWARD, NULL, skb,
+ brnf_get_logical_dev(skb, state->in),
+ parent, br_nf_forward_finish);
return NF_STOLEN;
}
static unsigned int br_nf_forward_arp(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct net_bridge_port *p;
struct net_bridge *br;
struct net_device **d = (struct net_device **)(skb->cb);
- p = br_port_get_rcu(out);
+ p = br_port_get_rcu(state->out);
if (p == NULL)
return NF_ACCEPT;
br = p->br;
@@ -822,15 +817,15 @@ static unsigned int br_nf_forward_arp(const struct nf_hook_ops *ops,
nf_bridge_push_encap_header(skb);
return NF_ACCEPT;
}
- *d = (struct net_device *)in;
- NF_HOOK(NFPROTO_ARP, NF_ARP_FORWARD, skb, (struct net_device *)in,
- (struct net_device *)out, br_nf_forward_finish);
+ *d = state->in;
+ NF_HOOK(NFPROTO_ARP, NF_ARP_FORWARD, state->sk, skb,
+ state->in, state->out, br_nf_forward_finish);
return NF_STOLEN;
}
#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV4)
-static int br_nf_push_frag_xmit(struct sk_buff *skb)
+static int br_nf_push_frag_xmit(struct sock *sk, struct sk_buff *skb)
{
struct brnf_frag_data *data;
int err;
@@ -846,17 +841,17 @@ static int br_nf_push_frag_xmit(struct sk_buff *skb)
skb_copy_to_linear_data_offset(skb, -data->size, data->mac, data->size);
__skb_push(skb, data->encap_size);
- return br_dev_queue_push_xmit(skb);
+ return br_dev_queue_push_xmit(sk, skb);
}
-static int br_nf_dev_queue_xmit(struct sk_buff *skb)
+static int br_nf_dev_queue_xmit(struct sock *sk, struct sk_buff *skb)
{
int ret;
int frag_max_size;
unsigned int mtu_reserved;
if (skb_is_gso(skb) || skb->protocol != htons(ETH_P_IP))
- return br_dev_queue_push_xmit(skb);
+ return br_dev_queue_push_xmit(sk, skb);
mtu_reserved = nf_bridge_mtu_reduction(skb);
/* This is wrong! We should preserve the original fragment
@@ -880,26 +875,24 @@ static int br_nf_dev_queue_xmit(struct sk_buff *skb)
skb_copy_from_linear_data_offset(skb, -data->size, data->mac,
data->size);
- ret = ip_fragment(skb, br_nf_push_frag_xmit);
+ ret = ip_fragment(sk, skb, br_nf_push_frag_xmit);
} else {
- ret = br_dev_queue_push_xmit(skb);
+ ret = br_dev_queue_push_xmit(sk, skb);
}
return ret;
}
#else
-static int br_nf_dev_queue_xmit(struct sk_buff *skb)
+static int br_nf_dev_queue_xmit(struct sock *sk, struct sk_buff *skb)
{
- return br_dev_queue_push_xmit(skb);
+ return br_dev_queue_push_xmit(sk, skb);
}
#endif
/* PF_BRIDGE/POST_ROUTING ********************************************/
static unsigned int br_nf_post_routing(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
struct net_device *realoutdev = bridge_parent(skb->dev);
@@ -936,7 +929,8 @@ static unsigned int br_nf_post_routing(const struct nf_hook_ops *ops,
else
skb->protocol = htons(ETH_P_IPV6);
- NF_HOOK(pf, NF_INET_POST_ROUTING, skb, NULL, realoutdev,
+ NF_HOOK(pf, NF_INET_POST_ROUTING, state->sk, skb,
+ NULL, realoutdev,
br_nf_dev_queue_xmit);
return NF_STOLEN;
@@ -947,9 +941,7 @@ static unsigned int br_nf_post_routing(const struct nf_hook_ops *ops,
* for the second time. */
static unsigned int ip_sabotage_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
if (skb->nf_bridge &&
!(skb->nf_bridge->mask & BRNF_NF_BRIDGE_PREROUTING)) {
@@ -981,7 +973,7 @@ static void br_nf_pre_routing_finish_bridge_slow(struct sk_buff *skb)
nf_bridge->neigh_header,
ETH_HLEN - ETH_ALEN);
skb->dev = nf_bridge->physindev;
- br_handle_frame_finish(skb);
+ br_handle_frame_finish(NULL, skb);
}
static int br_nf_dev_xmit(struct sk_buff *skb)
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index e1115a224a95..0e4ddb81610d 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -305,8 +305,8 @@ static int br_fill_ifinfo(struct sk_buff *skb,
nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
(dev->addr_len &&
nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
- (dev->ifindex != dev->iflink &&
- nla_put_u32(skb, IFLA_LINK, dev->iflink)))
+ (dev->ifindex != dev_get_iflink(dev) &&
+ nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
goto nla_put_failure;
if (event == RTM_NEWLINK && port) {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index b46fa0c5b8ec..6ca0251cb478 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -410,10 +410,10 @@ int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p,
/* br_forward.c */
void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb);
-int br_dev_queue_push_xmit(struct sk_buff *skb);
+int br_dev_queue_push_xmit(struct sock *sk, struct sk_buff *skb);
void br_forward(const struct net_bridge_port *to,
struct sk_buff *skb, struct sk_buff *skb0);
-int br_forward_finish(struct sk_buff *skb);
+int br_forward_finish(struct sock *sk, struct sk_buff *skb);
void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast);
void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
struct sk_buff *skb2, bool unicast);
@@ -431,7 +431,7 @@ void br_port_flags_change(struct net_bridge_port *port, unsigned long mask);
void br_manage_promisc(struct net_bridge *br);
/* br_input.c */
-int br_handle_frame_finish(struct sk_buff *skb);
+int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb);
rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
static inline bool br_rx_handler_check_rcu(const struct net_device *dev)
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index bdb459d21ad8..534fc4cd263e 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -54,8 +54,9 @@ static void br_send_bpdu(struct net_bridge_port *p,
skb_reset_mac_header(skb);
- NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
- dev_queue_xmit);
+ NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
+ NULL, skb->dev,
+ dev_queue_xmit_sk);
}
static inline void br_set_ticks(unsigned char *dest, int j)
diff --git a/net/bridge/netfilter/ebtable_filter.c b/net/bridge/netfilter/ebtable_filter.c
index ce205aabf9c5..8a3f63b2e807 100644
--- a/net/bridge/netfilter/ebtable_filter.c
+++ b/net/bridge/netfilter/ebtable_filter.c
@@ -58,20 +58,18 @@ static const struct ebt_table frame_filter = {
static unsigned int
ebt_in_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return ebt_do_table(ops->hooknum, skb, in, out,
- dev_net(in)->xt.frame_filter);
+ return ebt_do_table(ops->hooknum, skb, state->in, state->out,
+ dev_net(state->in)->xt.frame_filter);
}
static unsigned int
ebt_out_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return ebt_do_table(ops->hooknum, skb, in, out,
- dev_net(out)->xt.frame_filter);
+ return ebt_do_table(ops->hooknum, skb, state->in, state->out,
+ dev_net(state->out)->xt.frame_filter);
}
static struct nf_hook_ops ebt_ops_filter[] __read_mostly = {
diff --git a/net/bridge/netfilter/ebtable_nat.c b/net/bridge/netfilter/ebtable_nat.c
index a0ac2984fb6c..c5ef5b1ab678 100644
--- a/net/bridge/netfilter/ebtable_nat.c
+++ b/net/bridge/netfilter/ebtable_nat.c
@@ -58,20 +58,18 @@ static struct ebt_table frame_nat = {
static unsigned int
ebt_nat_in(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return ebt_do_table(ops->hooknum, skb, in, out,
- dev_net(in)->xt.frame_nat);
+ return ebt_do_table(ops->hooknum, skb, state->in, state->out,
+ dev_net(state->in)->xt.frame_nat);
}
static unsigned int
ebt_nat_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return ebt_do_table(ops->hooknum, skb, in, out,
- dev_net(out)->xt.frame_nat);
+ return ebt_do_table(ops->hooknum, skb, state->in, state->out,
+ dev_net(state->out)->xt.frame_nat);
}
static struct nf_hook_ops ebt_ops_nat[] __read_mostly = {
diff --git a/net/bridge/netfilter/nf_tables_bridge.c b/net/bridge/netfilter/nf_tables_bridge.c
index 19473a9371b8..a343e62442b1 100644
--- a/net/bridge/netfilter/nf_tables_bridge.c
+++ b/net/bridge/netfilter/nf_tables_bridge.c
@@ -67,47 +67,43 @@ EXPORT_SYMBOL_GPL(nft_bridge_ip6hdr_validate);
static inline void nft_bridge_set_pktinfo_ipv4(struct nft_pktinfo *pkt,
const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out)
+ const struct nf_hook_state *state)
{
if (nft_bridge_iphdr_validate(skb))
- nft_set_pktinfo_ipv4(pkt, ops, skb, in, out);
+ nft_set_pktinfo_ipv4(pkt, ops, skb, state);
else
- nft_set_pktinfo(pkt, ops, skb, in, out);
+ nft_set_pktinfo(pkt, ops, skb, state);
}
static inline void nft_bridge_set_pktinfo_ipv6(struct nft_pktinfo *pkt,
- const struct nf_hook_ops *ops,
- struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out)
+ const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
{
#if IS_ENABLED(CONFIG_IPV6)
if (nft_bridge_ip6hdr_validate(skb) &&
- nft_set_pktinfo_ipv6(pkt, ops, skb, in, out) == 0)
+ nft_set_pktinfo_ipv6(pkt, ops, skb, state) == 0)
return;
#endif
- nft_set_pktinfo(pkt, ops, skb, in, out);
+ nft_set_pktinfo(pkt, ops, skb, state);
}
static unsigned int
nft_do_chain_bridge(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nft_pktinfo pkt;
switch (eth_hdr(skb)->h_proto) {
case htons(ETH_P_IP):
- nft_bridge_set_pktinfo_ipv4(&pkt, ops, skb, in, out);
+ nft_bridge_set_pktinfo_ipv4(&pkt, ops, skb, state);
break;
case htons(ETH_P_IPV6):
- nft_bridge_set_pktinfo_ipv6(&pkt, ops, skb, in, out);
+ nft_bridge_set_pktinfo_ipv6(&pkt, ops, skb, state);
break;
default:
- nft_set_pktinfo(&pkt, ops, skb, in, out);
+ nft_set_pktinfo(&pkt, ops, skb, state);
break;
}
diff --git a/net/can/raw.c b/net/can/raw.c
index 63ffdb0f3a23..31b9748cbb4e 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -74,6 +74,12 @@ MODULE_ALIAS("can-proto-1");
* storing the single filter in dfilter, to avoid using dynamic memory.
*/
+struct uniqframe {
+ ktime_t tstamp;
+ const struct sk_buff *skb;
+ unsigned int join_rx_count;
+};
+
struct raw_sock {
struct sock sk;
int bound;
@@ -82,10 +88,12 @@ struct raw_sock {
int loopback;
int recv_own_msgs;
int fd_frames;
+ int join_filters;
int count; /* number of active filters */
struct can_filter dfilter; /* default/single filter */
struct can_filter *filter; /* pointer to filter(s) */
can_err_mask_t err_mask;
+ struct uniqframe __percpu *uniq;
};
/*
@@ -123,6 +131,26 @@ static void raw_rcv(struct sk_buff *oskb, void *data)
if (!ro->fd_frames && oskb->len != CAN_MTU)
return;
+ /* eliminate multiple filter matches for the same skb */
+ if (this_cpu_ptr(ro->uniq)->skb == oskb &&
+ ktime_equal(this_cpu_ptr(ro->uniq)->tstamp, oskb->tstamp)) {
+ if (ro->join_filters) {
+ this_cpu_inc(ro->uniq->join_rx_count);
+ /* drop frame until all enabled filters matched */
+ if (this_cpu_ptr(ro->uniq)->join_rx_count < ro->count)
+ return;
+ } else {
+ return;
+ }
+ } else {
+ this_cpu_ptr(ro->uniq)->skb = oskb;
+ this_cpu_ptr(ro->uniq)->tstamp = oskb->tstamp;
+ this_cpu_ptr(ro->uniq)->join_rx_count = 1;
+ /* drop first frame to check all enabled filters? */
+ if (ro->join_filters && ro->count > 1)
+ return;
+ }
+
/* clone the given skb to be able to enqueue it into the rcv queue */
skb = skb_clone(oskb, GFP_ATOMIC);
if (!skb)
@@ -296,6 +324,12 @@ static int raw_init(struct sock *sk)
ro->loopback = 1;
ro->recv_own_msgs = 0;
ro->fd_frames = 0;
+ ro->join_filters = 0;
+
+ /* alloc_percpu provides zero'ed memory */
+ ro->uniq = alloc_percpu(struct uniqframe);
+ if (unlikely(!ro->uniq))
+ return -ENOMEM;
/* set notifier */
ro->notifier.notifier_call = raw_notifier;
@@ -339,6 +373,7 @@ static int raw_release(struct socket *sock)
ro->ifindex = 0;
ro->bound = 0;
ro->count = 0;
+ free_percpu(ro->uniq);
sock_orphan(sk);
sock->sk = NULL;
@@ -583,6 +618,15 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
break;
+ case CAN_RAW_JOIN_FILTERS:
+ if (optlen != sizeof(ro->join_filters))
+ return -EINVAL;
+
+ if (copy_from_user(&ro->join_filters, optval, optlen))
+ return -EFAULT;
+
+ break;
+
default:
return -ENOPROTOOPT;
}
@@ -647,6 +691,12 @@ static int raw_getsockopt(struct socket *sock, int level, int optname,
val = &ro->fd_frames;
break;
+ case CAN_RAW_JOIN_FILTERS:
+ if (len > sizeof(int))
+ len = sizeof(int);
+ val = &ro->join_filters;
+ break;
+
default:
return -ENOPROTOOPT;
}
diff --git a/net/core/dev.c b/net/core/dev.c
index 65492b0354c0..b2775f06c710 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -660,6 +660,27 @@ __setup("netdev=", netdev_boot_setup);
*******************************************************************************/
/**
+ * dev_get_iflink - get 'iflink' value of a interface
+ * @dev: targeted interface
+ *
+ * Indicates the ifindex the interface is linked to.
+ * Physical interfaces have the same 'ifindex' and 'iflink' values.
+ */
+
+int dev_get_iflink(const struct net_device *dev)
+{
+ if (dev->netdev_ops && dev->netdev_ops->ndo_get_iflink)
+ return dev->netdev_ops->ndo_get_iflink(dev);
+
+ /* If dev->rtnl_link_ops is set, it's a virtual interface. */
+ if (dev->rtnl_link_ops)
+ return 0;
+
+ return dev->ifindex;
+}
+EXPORT_SYMBOL(dev_get_iflink);
+
+/**
* __dev_get_by_name - find a device by its name
* @net: the applicable net namespace
* @name: name to find
@@ -2849,14 +2870,16 @@ static void skb_update_prio(struct sk_buff *skb)
#define skb_update_prio(skb)
#endif
-static DEFINE_PER_CPU(int, xmit_recursion);
+DEFINE_PER_CPU(int, xmit_recursion);
+EXPORT_SYMBOL(xmit_recursion);
+
#define RECURSION_LIMIT 10
/**
* dev_loopback_xmit - loop back @skb
* @skb: buffer to transmit
*/
-int dev_loopback_xmit(struct sk_buff *skb)
+int dev_loopback_xmit(struct sock *sk, struct sk_buff *skb)
{
skb_reset_mac_header(skb);
__skb_pull(skb, skb_network_offset(skb));
@@ -2994,11 +3017,11 @@ out:
return rc;
}
-int dev_queue_xmit(struct sk_buff *skb)
+int dev_queue_xmit_sk(struct sock *sk, struct sk_buff *skb)
{
return __dev_queue_xmit(skb, NULL);
}
-EXPORT_SYMBOL(dev_queue_xmit);
+EXPORT_SYMBOL(dev_queue_xmit_sk);
int dev_queue_xmit_accel(struct sk_buff *skb, void *accel_priv)
{
@@ -3830,13 +3853,13 @@ static int netif_receive_skb_internal(struct sk_buff *skb)
* NET_RX_SUCCESS: no congestion
* NET_RX_DROP: packet was dropped
*/
-int netif_receive_skb(struct sk_buff *skb)
+int netif_receive_skb_sk(struct sock *sk, struct sk_buff *skb)
{
trace_netif_receive_skb_entry(skb);
return netif_receive_skb_internal(skb);
}
-EXPORT_SYMBOL(netif_receive_skb);
+EXPORT_SYMBOL(netif_receive_skb_sk);
/* Network device is going away, flush any packets still pending
* Called with irqs disabled.
@@ -6314,8 +6337,6 @@ int register_netdevice(struct net_device *dev)
spin_lock_init(&dev->addr_list_lock);
netdev_set_addr_lockdep_class(dev);
- dev->iflink = -1;
-
ret = dev_get_valid_name(net, dev, dev->name);
if (ret < 0)
goto out;
@@ -6345,9 +6366,6 @@ int register_netdevice(struct net_device *dev)
else if (__dev_get_by_index(net, dev->ifindex))
goto err_uninit;
- if (dev->iflink == -1)
- dev->iflink = dev->ifindex;
-
/* Transfer changeable features to wanted_features and enable
* software offloads (GSO and GRO).
*/
@@ -7060,12 +7078,8 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
dev_net_set(dev, net);
/* If there is an ifindex conflict assign a new one */
- if (__dev_get_by_index(net, dev->ifindex)) {
- int iflink = (dev->iflink == dev->ifindex);
+ if (__dev_get_by_index(net, dev->ifindex))
dev->ifindex = dev_new_index(net);
- if (iflink)
- dev->iflink = dev->ifindex;
- }
/* Send a netdev-add uevent to the new namespace */
kobject_uevent(&dev->dev.kobj, KOBJ_ADD);
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 68ea6950cad1..9a12668f7d62 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -165,9 +165,9 @@ void fib_rules_unregister(struct fib_rules_ops *ops)
spin_lock(&net->rules_mod_lock);
list_del_rcu(&ops->list);
- fib_rules_cleanup_ops(ops);
spin_unlock(&net->rules_mod_lock);
+ fib_rules_cleanup_ops(ops);
kfree_rcu(ops, rcu);
}
EXPORT_SYMBOL_GPL(fib_rules_unregister);
diff --git a/net/core/filter.c b/net/core/filter.c
index 444a07e4f68d..b669e75d2b36 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1175,7 +1175,9 @@ int sk_attach_bpf(u32 ufd, struct sock *sk)
return 0;
}
-static u64 bpf_skb_store_bytes(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5)
+#define BPF_RECOMPUTE_CSUM(flags) ((flags) & 1)
+
+static u64 bpf_skb_store_bytes(u64 r1, u64 r2, u64 r3, u64 r4, u64 flags)
{
struct sk_buff *skb = (struct sk_buff *) (long) r1;
unsigned int offset = (unsigned int) r2;
@@ -1192,7 +1194,7 @@ static u64 bpf_skb_store_bytes(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5)
*
* so check for invalid 'offset' and too large 'len'
*/
- if (offset > 0xffff || len > sizeof(buf))
+ if (unlikely(offset > 0xffff || len > sizeof(buf)))
return -EFAULT;
if (skb_cloned(skb) && !skb_clone_writable(skb, offset + len))
@@ -1202,7 +1204,8 @@ static u64 bpf_skb_store_bytes(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5)
if (unlikely(!ptr))
return -EFAULT;
- skb_postpull_rcsum(skb, ptr, len);
+ if (BPF_RECOMPUTE_CSUM(flags))
+ skb_postpull_rcsum(skb, ptr, len);
memcpy(ptr, from, len);
@@ -1210,7 +1213,7 @@ static u64 bpf_skb_store_bytes(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5)
/* skb_store_bits cannot return -EFAULT here */
skb_store_bits(skb, offset, ptr, len);
- if (skb->ip_summed == CHECKSUM_COMPLETE)
+ if (BPF_RECOMPUTE_CSUM(flags) && skb->ip_summed == CHECKSUM_COMPLETE)
skb->csum = csum_add(skb->csum, csum_partial(ptr, len, 0));
return 0;
}
@@ -1223,6 +1226,99 @@ const struct bpf_func_proto bpf_skb_store_bytes_proto = {
.arg2_type = ARG_ANYTHING,
.arg3_type = ARG_PTR_TO_STACK,
.arg4_type = ARG_CONST_STACK_SIZE,
+ .arg5_type = ARG_ANYTHING,
+};
+
+#define BPF_HEADER_FIELD_SIZE(flags) ((flags) & 0x0f)
+#define BPF_IS_PSEUDO_HEADER(flags) ((flags) & 0x10)
+
+static u64 bpf_l3_csum_replace(u64 r1, u64 offset, u64 from, u64 to, u64 flags)
+{
+ struct sk_buff *skb = (struct sk_buff *) (long) r1;
+ __sum16 sum, *ptr;
+
+ if (unlikely(offset > 0xffff))
+ return -EFAULT;
+
+ if (skb_cloned(skb) && !skb_clone_writable(skb, offset + sizeof(sum)))
+ return -EFAULT;
+
+ ptr = skb_header_pointer(skb, offset, sizeof(sum), &sum);
+ if (unlikely(!ptr))
+ return -EFAULT;
+
+ switch (BPF_HEADER_FIELD_SIZE(flags)) {
+ case 2:
+ csum_replace2(ptr, from, to);
+ break;
+ case 4:
+ csum_replace4(ptr, from, to);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (ptr == &sum)
+ /* skb_store_bits guaranteed to not return -EFAULT here */
+ skb_store_bits(skb, offset, ptr, sizeof(sum));
+
+ return 0;
+}
+
+const struct bpf_func_proto bpf_l3_csum_replace_proto = {
+ .func = bpf_l3_csum_replace,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_PTR_TO_CTX,
+ .arg2_type = ARG_ANYTHING,
+ .arg3_type = ARG_ANYTHING,
+ .arg4_type = ARG_ANYTHING,
+ .arg5_type = ARG_ANYTHING,
+};
+
+static u64 bpf_l4_csum_replace(u64 r1, u64 offset, u64 from, u64 to, u64 flags)
+{
+ struct sk_buff *skb = (struct sk_buff *) (long) r1;
+ u32 is_pseudo = BPF_IS_PSEUDO_HEADER(flags);
+ __sum16 sum, *ptr;
+
+ if (unlikely(offset > 0xffff))
+ return -EFAULT;
+
+ if (skb_cloned(skb) && !skb_clone_writable(skb, offset + sizeof(sum)))
+ return -EFAULT;
+
+ ptr = skb_header_pointer(skb, offset, sizeof(sum), &sum);
+ if (unlikely(!ptr))
+ return -EFAULT;
+
+ switch (BPF_HEADER_FIELD_SIZE(flags)) {
+ case 2:
+ inet_proto_csum_replace2(ptr, skb, from, to, is_pseudo);
+ break;
+ case 4:
+ inet_proto_csum_replace4(ptr, skb, from, to, is_pseudo);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (ptr == &sum)
+ /* skb_store_bits guaranteed to not return -EFAULT here */
+ skb_store_bits(skb, offset, ptr, sizeof(sum));
+
+ return 0;
+}
+
+const struct bpf_func_proto bpf_l4_csum_replace_proto = {
+ .func = bpf_l4_csum_replace,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_PTR_TO_CTX,
+ .arg2_type = ARG_ANYTHING,
+ .arg3_type = ARG_ANYTHING,
+ .arg4_type = ARG_ANYTHING,
+ .arg5_type = ARG_ANYTHING,
};
static const struct bpf_func_proto *
@@ -1250,6 +1346,10 @@ tc_cls_act_func_proto(enum bpf_func_id func_id)
switch (func_id) {
case BPF_FUNC_skb_store_bytes:
return &bpf_skb_store_bytes_proto;
+ case BPF_FUNC_l3_csum_replace:
+ return &bpf_l3_csum_replace_proto;
+ case BPF_FUNC_l4_csum_replace:
+ return &bpf_l4_csum_replace_proto;
default:
return sk_filter_func_proto(func_id);
}
@@ -1304,6 +1404,13 @@ static u32 sk_filter_convert_ctx_access(int dst_reg, int src_reg, int ctx_off,
offsetof(struct sk_buff, vlan_proto));
break;
+ case offsetof(struct __sk_buff, priority):
+ BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, priority) != 4);
+
+ *insn++ = BPF_LDX_MEM(BPF_W, dst_reg, src_reg,
+ offsetof(struct sk_buff, priority));
+ break;
+
case offsetof(struct __sk_buff, mark):
return convert_skb_access(SKF_AD_MARK, dst_reg, src_reg, insn);
diff --git a/net/core/link_watch.c b/net/core/link_watch.c
index 49a9e3e06c08..982861607f88 100644
--- a/net/core/link_watch.c
+++ b/net/core/link_watch.c
@@ -40,7 +40,7 @@ static DEFINE_SPINLOCK(lweventlist_lock);
static unsigned char default_operstate(const struct net_device *dev)
{
if (!netif_carrier_ok(dev))
- return (dev->ifindex != dev->iflink ?
+ return (dev->ifindex != dev_get_iflink(dev) ?
IF_OPER_LOWERLAYERDOWN : IF_OPER_DOWN);
if (netif_dormant(dev))
@@ -89,7 +89,7 @@ static bool linkwatch_urgent_event(struct net_device *dev)
if (!netif_running(dev))
return false;
- if (dev->ifindex != dev->iflink)
+ if (dev->ifindex != dev_get_iflink(dev))
return true;
if (dev->priv_flags & IFF_TEAM_PORT)
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index cc5cf689809c..4238d6da5c60 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -109,11 +109,19 @@ NETDEVICE_SHOW_RO(dev_id, fmt_hex);
NETDEVICE_SHOW_RO(dev_port, fmt_dec);
NETDEVICE_SHOW_RO(addr_assign_type, fmt_dec);
NETDEVICE_SHOW_RO(addr_len, fmt_dec);
-NETDEVICE_SHOW_RO(iflink, fmt_dec);
NETDEVICE_SHOW_RO(ifindex, fmt_dec);
NETDEVICE_SHOW_RO(type, fmt_dec);
NETDEVICE_SHOW_RO(link_mode, fmt_dec);
+static ssize_t iflink_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct net_device *ndev = to_net_dev(dev);
+
+ return sprintf(buf, fmt_dec, dev_get_iflink(ndev));
+}
+static DEVICE_ATTR_RO(iflink);
+
static ssize_t format_name_assign_type(const struct net_device *dev, char *buf)
{
return sprintf(buf, fmt_dec, dev->name_assign_type);
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index e5e96b0f6717..a3abb719221f 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -148,9 +148,11 @@ static void ops_free_list(const struct pernet_operations *ops,
}
}
+static void rtnl_net_notifyid(struct net *net, struct net *peer, int cmd,
+ int id);
static int alloc_netid(struct net *net, struct net *peer, int reqid)
{
- int min = 0, max = 0;
+ int min = 0, max = 0, id;
ASSERT_RTNL();
@@ -159,7 +161,11 @@ static int alloc_netid(struct net *net, struct net *peer, int reqid)
max = reqid + 1;
}
- return idr_alloc(&net->netns_ids, peer, min, max, GFP_KERNEL);
+ id = idr_alloc(&net->netns_ids, peer, min, max, GFP_KERNEL);
+ if (id >= 0)
+ rtnl_net_notifyid(net, peer, RTM_NEWNSID, id);
+
+ return id;
}
/* This function is used by idr_for_each(). If net is equal to peer, the
@@ -198,8 +204,10 @@ static int __peernet2id(struct net *net, struct net *peer, bool alloc)
*/
int peernet2id(struct net *net, struct net *peer)
{
- int id = __peernet2id(net, peer, true);
+ bool alloc = atomic_read(&peer->count) == 0 ? false : true;
+ int id;
+ id = __peernet2id(net, peer, alloc);
return id >= 0 ? id : NETNSA_NSID_NOT_ASSIGNED;
}
EXPORT_SYMBOL(peernet2id);
@@ -357,8 +365,10 @@ static void cleanup_net(struct work_struct *work)
for_each_net(tmp) {
int id = __peernet2id(tmp, net, false);
- if (id >= 0)
+ if (id >= 0) {
+ rtnl_net_notifyid(tmp, net, RTM_DELNSID, id);
idr_remove(&tmp->netns_ids, id);
+ }
}
idr_destroy(&net->netns_ids);
@@ -529,7 +539,8 @@ static int rtnl_net_get_size(void)
}
static int rtnl_net_fill(struct sk_buff *skb, u32 portid, u32 seq, int flags,
- int cmd, struct net *net, struct net *peer)
+ int cmd, struct net *net, struct net *peer,
+ int nsid)
{
struct nlmsghdr *nlh;
struct rtgenmsg *rth;
@@ -544,9 +555,13 @@ static int rtnl_net_fill(struct sk_buff *skb, u32 portid, u32 seq, int flags,
rth = nlmsg_data(nlh);
rth->rtgen_family = AF_UNSPEC;
- id = __peernet2id(net, peer, false);
- if (id < 0)
- id = NETNSA_NSID_NOT_ASSIGNED;
+ if (nsid >= 0) {
+ id = nsid;
+ } else {
+ id = __peernet2id(net, peer, false);
+ if (id < 0)
+ id = NETNSA_NSID_NOT_ASSIGNED;
+ }
if (nla_put_s32(skb, NETNSA_NSID, id))
goto nla_put_failure;
@@ -563,8 +578,8 @@ static int rtnl_net_getid(struct sk_buff *skb, struct nlmsghdr *nlh)
struct net *net = sock_net(skb->sk);
struct nlattr *tb[NETNSA_MAX + 1];
struct sk_buff *msg;
- int err = -ENOBUFS;
struct net *peer;
+ int err;
err = nlmsg_parse(nlh, sizeof(struct rtgenmsg), tb, NETNSA_MAX,
rtnl_net_policy);
@@ -587,7 +602,7 @@ static int rtnl_net_getid(struct sk_buff *skb, struct nlmsghdr *nlh)
}
err = rtnl_net_fill(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq, 0,
- RTM_GETNSID, net, peer);
+ RTM_GETNSID, net, peer, -1);
if (err < 0)
goto err_out;
@@ -601,6 +616,75 @@ out:
return err;
}
+struct rtnl_net_dump_cb {
+ struct net *net;
+ struct sk_buff *skb;
+ struct netlink_callback *cb;
+ int idx;
+ int s_idx;
+};
+
+static int rtnl_net_dumpid_one(int id, void *peer, void *data)
+{
+ struct rtnl_net_dump_cb *net_cb = (struct rtnl_net_dump_cb *)data;
+ int ret;
+
+ if (net_cb->idx < net_cb->s_idx)
+ goto cont;
+
+ ret = rtnl_net_fill(net_cb->skb, NETLINK_CB(net_cb->cb->skb).portid,
+ net_cb->cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ RTM_NEWNSID, net_cb->net, peer, id);
+ if (ret < 0)
+ return ret;
+
+cont:
+ net_cb->idx++;
+ return 0;
+}
+
+static int rtnl_net_dumpid(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct net *net = sock_net(skb->sk);
+ struct rtnl_net_dump_cb net_cb = {
+ .net = net,
+ .skb = skb,
+ .cb = cb,
+ .idx = 0,
+ .s_idx = cb->args[0],
+ };
+
+ ASSERT_RTNL();
+
+ idr_for_each(&net->netns_ids, rtnl_net_dumpid_one, &net_cb);
+
+ cb->args[0] = net_cb.idx;
+ return skb->len;
+}
+
+static void rtnl_net_notifyid(struct net *net, struct net *peer, int cmd,
+ int id)
+{
+ struct sk_buff *msg;
+ int err = -ENOMEM;
+
+ msg = nlmsg_new(rtnl_net_get_size(), GFP_KERNEL);
+ if (!msg)
+ goto out;
+
+ err = rtnl_net_fill(msg, 0, 0, 0, cmd, net, peer, id);
+ if (err < 0)
+ goto err_out;
+
+ rtnl_notify(msg, net, 0, RTNLGRP_NSID, NULL, 0);
+ return;
+
+err_out:
+ nlmsg_free(msg);
+out:
+ rtnl_set_sk_err(net, RTNLGRP_NSID, err);
+}
+
static int __init net_ns_init(void)
{
struct net_generic *ng;
@@ -635,7 +719,8 @@ static int __init net_ns_init(void)
register_pernet_subsys(&net_ns_ops);
rtnl_register(PF_UNSPEC, RTM_NEWNSID, rtnl_net_newid, NULL, NULL);
- rtnl_register(PF_UNSPEC, RTM_GETNSID, rtnl_net_getid, NULL, NULL);
+ rtnl_register(PF_UNSPEC, RTM_GETNSID, rtnl_net_getid, rtnl_net_dumpid,
+ NULL);
return 0;
}
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index b96ac2109c82..5e02260b087f 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1055,8 +1055,8 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
#ifdef CONFIG_RPS
nla_put_u32(skb, IFLA_NUM_RX_QUEUES, dev->num_rx_queues) ||
#endif
- (dev->ifindex != dev->iflink &&
- nla_put_u32(skb, IFLA_LINK, dev->iflink)) ||
+ (dev->ifindex != dev_get_iflink(dev) &&
+ nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))) ||
(upper_dev &&
nla_put_u32(skb, IFLA_MASTER, upper_dev->ifindex)) ||
nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
@@ -1991,10 +1991,10 @@ static int rtnl_group_changelink(const struct sk_buff *skb,
struct ifinfomsg *ifm,
struct nlattr **tb)
{
- struct net_device *dev;
+ struct net_device *dev, *aux;
int err;
- for_each_netdev(net, dev) {
+ for_each_netdev_safe(net, dev, aux) {
if (dev->group == group) {
err = do_setlink(skb, dev, ifm, tb, NULL, 0);
if (err < 0)
@@ -2863,8 +2863,8 @@ int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
nla_put_u32(skb, IFLA_MASTER, br_dev->ifindex)) ||
(dev->addr_len &&
nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
- (dev->ifindex != dev->iflink &&
- nla_put_u32(skb, IFLA_LINK, dev->iflink)))
+ (dev->ifindex != dev_get_iflink(dev) &&
+ nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
goto nla_put_failure;
br_afspec = nla_nest_start(skb, IFLA_AF_SPEC);
diff --git a/net/core/sock.c b/net/core/sock.c
index 119ae464b44a..654e38a99759 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -653,6 +653,25 @@ static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
sock_reset_flag(sk, bit);
}
+bool sk_mc_loop(struct sock *sk)
+{
+ if (dev_recursion_level())
+ return false;
+ if (!sk)
+ return true;
+ switch (sk->sk_family) {
+ case AF_INET:
+ return inet_sk(sk)->mc_loop;
+#if IS_ENABLED(CONFIG_IPV6)
+ case AF_INET6:
+ return inet6_sk(sk)->mc_loop;
+#endif
+ }
+ WARN_ON(1);
+ return true;
+}
+EXPORT_SYMBOL(sk_mc_loop);
+
/*
* This is meant for all protocols to use and covers goings on
* at the socket level. Everything here is generic.
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index be1f08cdad29..4507b188fc51 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -194,7 +194,7 @@ static int dn_neigh_output(struct neighbour *neigh, struct sk_buff *skb)
return err;
}
-static int dn_neigh_output_packet(struct sk_buff *skb)
+static int dn_neigh_output_packet(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *)dst;
@@ -206,7 +206,8 @@ static int dn_neigh_output_packet(struct sk_buff *skb)
/*
* For talking to broadcast devices: Ethernet & PPP
*/
-static int dn_long_output(struct neighbour *neigh, struct sk_buff *skb)
+static int dn_long_output(struct neighbour *neigh, struct sock *sk,
+ struct sk_buff *skb)
{
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_long_packet) + 3;
@@ -245,14 +246,15 @@ static int dn_long_output(struct neighbour *neigh, struct sk_buff *skb)
skb_reset_network_header(skb);
- return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, skb, NULL,
- neigh->dev, dn_neigh_output_packet);
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
+ NULL, neigh->dev, dn_neigh_output_packet);
}
/*
* For talking to pointopoint and multidrop devices: DDCMP and X.25
*/
-static int dn_short_output(struct neighbour *neigh, struct sk_buff *skb)
+static int dn_short_output(struct neighbour *neigh, struct sock *sk,
+ struct sk_buff *skb)
{
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
@@ -284,8 +286,8 @@ static int dn_short_output(struct neighbour *neigh, struct sk_buff *skb)
skb_reset_network_header(skb);
- return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, skb, NULL,
- neigh->dev, dn_neigh_output_packet);
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
+ NULL, neigh->dev, dn_neigh_output_packet);
}
/*
@@ -293,7 +295,8 @@ static int dn_short_output(struct neighbour *neigh, struct sk_buff *skb)
* Phase 3 output is the same as short output, execpt that
* it clears the area bits before transmission.
*/
-static int dn_phase3_output(struct neighbour *neigh, struct sk_buff *skb)
+static int dn_phase3_output(struct neighbour *neigh, struct sock *sk,
+ struct sk_buff *skb)
{
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
@@ -324,11 +327,11 @@ static int dn_phase3_output(struct neighbour *neigh, struct sk_buff *skb)
skb_reset_network_header(skb);
- return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, skb, NULL,
- neigh->dev, dn_neigh_output_packet);
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
+ NULL, neigh->dev, dn_neigh_output_packet);
}
-int dn_to_neigh_output(struct sk_buff *skb)
+int dn_to_neigh_output(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *) dst;
@@ -347,11 +350,11 @@ int dn_to_neigh_output(struct sk_buff *skb)
rcu_read_unlock();
if (dn->flags & DN_NDFLAG_P3)
- return dn_phase3_output(neigh, skb);
+ return dn_phase3_output(neigh, sk, skb);
if (use_long)
- return dn_long_output(neigh, skb);
+ return dn_long_output(neigh, sk, skb);
else
- return dn_short_output(neigh, skb);
+ return dn_short_output(neigh, sk, skb);
}
/*
@@ -372,7 +375,7 @@ void dn_neigh_pointopoint_hello(struct sk_buff *skb)
/*
* Ethernet router hello message received
*/
-int dn_neigh_router_hello(struct sk_buff *skb)
+int dn_neigh_router_hello(struct sock *sk, struct sk_buff *skb)
{
struct rtnode_hello_message *msg = (struct rtnode_hello_message *)skb->data;
@@ -434,7 +437,7 @@ int dn_neigh_router_hello(struct sk_buff *skb)
/*
* Endnode hello message received
*/
-int dn_neigh_endnode_hello(struct sk_buff *skb)
+int dn_neigh_endnode_hello(struct sock *sk, struct sk_buff *skb)
{
struct endnode_hello_message *msg = (struct endnode_hello_message *)skb->data;
struct neighbour *neigh;
diff --git a/net/decnet/dn_nsp_in.c b/net/decnet/dn_nsp_in.c
index fe5f01485d33..a321eac9fd0c 100644
--- a/net/decnet/dn_nsp_in.c
+++ b/net/decnet/dn_nsp_in.c
@@ -714,7 +714,7 @@ out:
return ret;
}
-static int dn_nsp_rx_packet(struct sk_buff *skb)
+static int dn_nsp_rx_packet(struct sock *sk2, struct sk_buff *skb)
{
struct dn_skb_cb *cb = DN_SKB_CB(skb);
struct sock *sk = NULL;
@@ -814,7 +814,8 @@ free_out:
int dn_nsp_rx(struct sk_buff *skb)
{
- return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_IN, skb, skb->dev, NULL,
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_IN, NULL, skb,
+ skb->dev, NULL,
dn_nsp_rx_packet);
}
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 9ab0c4ba297f..03227ffd19ce 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -512,7 +512,7 @@ static int dn_return_long(struct sk_buff *skb)
*
* Returns: result of input function if route is found, error code otherwise
*/
-static int dn_route_rx_packet(struct sk_buff *skb)
+static int dn_route_rx_packet(struct sock *sk, struct sk_buff *skb)
{
struct dn_skb_cb *cb;
int err;
@@ -573,7 +573,8 @@ static int dn_route_rx_long(struct sk_buff *skb)
ptr++;
cb->hops = *ptr++; /* Visit Count */
- return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, skb, skb->dev, NULL,
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, NULL, skb,
+ skb->dev, NULL,
dn_route_rx_packet);
drop_it:
@@ -600,7 +601,8 @@ static int dn_route_rx_short(struct sk_buff *skb)
ptr += 2;
cb->hops = *ptr & 0x3f;
- return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, skb, skb->dev, NULL,
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, NULL, skb,
+ skb->dev, NULL,
dn_route_rx_packet);
drop_it:
@@ -608,7 +610,7 @@ drop_it:
return NET_RX_DROP;
}
-static int dn_route_discard(struct sk_buff *skb)
+static int dn_route_discard(struct sock *sk, struct sk_buff *skb)
{
/*
* I know we drop the packet here, but thats considered success in
@@ -618,7 +620,7 @@ static int dn_route_discard(struct sk_buff *skb)
return NET_RX_SUCCESS;
}
-static int dn_route_ptp_hello(struct sk_buff *skb)
+static int dn_route_ptp_hello(struct sock *sk, struct sk_buff *skb)
{
dn_dev_hello(skb);
dn_neigh_pointopoint_hello(skb);
@@ -704,22 +706,22 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
switch (flags & DN_RT_CNTL_MSK) {
case DN_RT_PKT_HELO:
return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
- skb, skb->dev, NULL,
+ NULL, skb, skb->dev, NULL,
dn_route_ptp_hello);
case DN_RT_PKT_L1RT:
case DN_RT_PKT_L2RT:
return NF_HOOK(NFPROTO_DECNET, NF_DN_ROUTE,
- skb, skb->dev, NULL,
+ NULL, skb, skb->dev, NULL,
dn_route_discard);
case DN_RT_PKT_ERTH:
return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
- skb, skb->dev, NULL,
+ NULL, skb, skb->dev, NULL,
dn_neigh_router_hello);
case DN_RT_PKT_EEDH:
return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
- skb, skb->dev, NULL,
+ NULL, skb, skb->dev, NULL,
dn_neigh_endnode_hello);
}
} else {
@@ -768,7 +770,8 @@ static int dn_output(struct sock *sk, struct sk_buff *skb)
cb->rt_flags |= DN_RT_F_IE;
cb->hops = 0;
- return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_OUT, skb, NULL, dev,
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_OUT, sk, skb,
+ NULL, dev,
dn_to_neigh_output);
error:
@@ -816,7 +819,8 @@ static int dn_forward(struct sk_buff *skb)
if (rt->rt_flags & RTCF_DOREDIRECT)
cb->rt_flags |= DN_RT_F_IE;
- return NF_HOOK(NFPROTO_DECNET, NF_DN_FORWARD, skb, dev, skb->dev,
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_FORWARD, NULL, skb,
+ dev, skb->dev,
dn_to_neigh_output);
drop:
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index faf7cc3483fe..9d66a0f72f90 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -248,7 +248,9 @@ void __init dn_fib_rules_init(void)
void __exit dn_fib_rules_cleanup(void)
{
+ rtnl_lock();
fib_rules_unregister(dn_fib_rules_ops);
+ rtnl_unlock();
rcu_barrier();
}
diff --git a/net/decnet/netfilter/dn_rtmsg.c b/net/decnet/netfilter/dn_rtmsg.c
index e4d9560a910b..af34fc9bdf69 100644
--- a/net/decnet/netfilter/dn_rtmsg.c
+++ b/net/decnet/netfilter/dn_rtmsg.c
@@ -89,9 +89,7 @@ static void dnrmg_send_peer(struct sk_buff *skb)
static unsigned int dnrmg_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
dnrmg_send_peer(skb);
return NF_ACCEPT;
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 899772108ee3..5eaadabe23a1 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -513,12 +513,10 @@ static struct net_device *dev_to_net_device(struct device *dev)
#ifdef CONFIG_OF
static int dsa_of_setup_routing_table(struct dsa_platform_data *pd,
struct dsa_chip_data *cd,
- int chip_index,
+ int chip_index, int port_index,
struct device_node *link)
{
- int ret;
const __be32 *reg;
- int link_port_addr;
int link_sw_addr;
struct device_node *parent_sw;
int len;
@@ -531,6 +529,10 @@ static int dsa_of_setup_routing_table(struct dsa_platform_data *pd,
if (!reg || (len != sizeof(*reg) * 2))
return -EINVAL;
+ /*
+ * Get the destination switch number from the second field of its 'reg'
+ * property, i.e. for "reg = <0x19 1>" sw_addr is '1'.
+ */
link_sw_addr = be32_to_cpup(reg + 1);
if (link_sw_addr >= pd->nr_chips)
@@ -547,20 +549,9 @@ static int dsa_of_setup_routing_table(struct dsa_platform_data *pd,
memset(cd->rtable, -1, pd->nr_chips * sizeof(s8));
}
- reg = of_get_property(link, "reg", NULL);
- if (!reg) {
- ret = -EINVAL;
- goto out;
- }
-
- link_port_addr = be32_to_cpup(reg);
-
- cd->rtable[link_sw_addr] = link_port_addr;
+ cd->rtable[link_sw_addr] = port_index;
return 0;
-out:
- kfree(cd->rtable);
- return ret;
}
static void dsa_of_free_platform_data(struct dsa_platform_data *pd)
@@ -670,7 +661,7 @@ static int dsa_of_probe(struct device *dev)
if (!strcmp(port_name, "dsa") && link &&
pd->nr_chips > 1) {
ret = dsa_of_setup_routing_table(pd, cd,
- chip_index, link);
+ chip_index, port_index, link);
if (ret)
goto out_free_chip;
}
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 3597724ec3d8..827cda560a55 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -55,13 +55,11 @@ void dsa_slave_mii_bus_init(struct dsa_switch *ds)
/* slave device handling ****************************************************/
-static int dsa_slave_init(struct net_device *dev)
+static int dsa_slave_get_iflink(const struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
- dev->iflink = p->parent->dst->master_netdev->ifindex;
-
- return 0;
+ return p->parent->dst->master_netdev->ifindex;
}
static inline bool dsa_port_is_bridged(struct dsa_slave_priv *p)
@@ -664,7 +662,6 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = {
};
static const struct net_device_ops dsa_slave_netdev_ops = {
- .ndo_init = dsa_slave_init,
.ndo_open = dsa_slave_open,
.ndo_stop = dsa_slave_close,
.ndo_start_xmit = dsa_slave_xmit,
@@ -675,6 +672,7 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_fdb_del = dsa_slave_fdb_del,
.ndo_fdb_dump = dsa_slave_fdb_dump,
.ndo_do_ioctl = dsa_slave_ioctl,
+ .ndo_get_iflink = dsa_slave_get_iflink,
};
static const struct swdev_ops dsa_slave_swdev_ops = {
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 64a9c0fdc4aa..8b47a4d79d04 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -217,7 +217,7 @@ int inet_listen(struct socket *sock, int backlog)
* shutdown() (rather than close()).
*/
if ((sysctl_tcp_fastopen & TFO_SERVER_ENABLE) != 0 &&
- inet_csk(sk)->icsk_accept_queue.fastopenq == NULL) {
+ !inet_csk(sk)->icsk_accept_queue.fastopenq) {
if ((sysctl_tcp_fastopen & TFO_SERVER_WO_SOCKOPT1) != 0)
err = fastopen_init_queue(sk, backlog);
else if ((sysctl_tcp_fastopen &
@@ -314,11 +314,11 @@ lookup_protocol:
answer_flags = answer->flags;
rcu_read_unlock();
- WARN_ON(answer_prot->slab == NULL);
+ WARN_ON(!answer_prot->slab);
err = -ENOBUFS;
sk = sk_alloc(net, PF_INET, GFP_KERNEL, answer_prot);
- if (sk == NULL)
+ if (!sk)
goto out;
err = 0;
@@ -1269,7 +1269,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
if (udpfrag) {
iph->id = htons(id);
iph->frag_off = htons(offset >> 3);
- if (skb->next != NULL)
+ if (skb->next)
iph->frag_off |= htons(IP_MF);
offset += skb->len - nhoff - ihl;
} else {
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 5f5c674e130a..933a92820d26 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -228,7 +228,7 @@ static int arp_constructor(struct neighbour *neigh)
rcu_read_lock();
in_dev = __in_dev_get_rcu(dev);
- if (in_dev == NULL) {
+ if (!in_dev) {
rcu_read_unlock();
return -EINVAL;
}
@@ -475,7 +475,7 @@ static inline int arp_fwd_pvlan(struct in_device *in_dev,
*/
/*
- * Create an arp packet. If (dest_hw == NULL), we create a broadcast
+ * Create an arp packet. If dest_hw is not set, we create a broadcast
* message.
*/
struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
@@ -495,7 +495,7 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
*/
skb = alloc_skb(arp_hdr_len(dev) + hlen + tlen, GFP_ATOMIC);
- if (skb == NULL)
+ if (!skb)
return NULL;
skb_reserve(skb, hlen);
@@ -503,9 +503,9 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
arp = (struct arphdr *) skb_put(skb, arp_hdr_len(dev));
skb->dev = dev;
skb->protocol = htons(ETH_P_ARP);
- if (src_hw == NULL)
+ if (!src_hw)
src_hw = dev->dev_addr;
- if (dest_hw == NULL)
+ if (!dest_hw)
dest_hw = dev->broadcast;
/*
@@ -569,7 +569,7 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
break;
#endif
default:
- if (target_hw != NULL)
+ if (target_hw)
memcpy(arp_ptr, target_hw, dev->addr_len);
else
memset(arp_ptr, 0, dev->addr_len);
@@ -591,7 +591,8 @@ EXPORT_SYMBOL(arp_create);
void arp_xmit(struct sk_buff *skb)
{
/* Send it off, maybe filter it using firewalling first. */
- NF_HOOK(NFPROTO_ARP, NF_ARP_OUT, skb, NULL, skb->dev, dev_queue_xmit);
+ NF_HOOK(NFPROTO_ARP, NF_ARP_OUT, NULL, skb,
+ NULL, skb->dev, dev_queue_xmit_sk);
}
EXPORT_SYMBOL(arp_xmit);
@@ -614,7 +615,7 @@ void arp_send(int type, int ptype, __be32 dest_ip,
skb = arp_create(type, ptype, dest_ip, dev, src_ip,
dest_hw, src_hw, target_hw);
- if (skb == NULL)
+ if (!skb)
return;
arp_xmit(skb);
@@ -625,7 +626,7 @@ EXPORT_SYMBOL(arp_send);
* Process an arp request.
*/
-static int arp_process(struct sk_buff *skb)
+static int arp_process(struct sock *sk, struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct in_device *in_dev = __in_dev_get_rcu(dev);
@@ -644,7 +645,7 @@ static int arp_process(struct sk_buff *skb)
* is ARP'able.
*/
- if (in_dev == NULL)
+ if (!in_dev)
goto out;
arp = arp_hdr(skb);
@@ -808,7 +809,7 @@ static int arp_process(struct sk_buff *skb)
is_garp = arp->ar_op == htons(ARPOP_REQUEST) && tip == sip &&
inet_addr_type(net, sip) == RTN_UNICAST;
- if (n == NULL &&
+ if (!n &&
((arp->ar_op == htons(ARPOP_REPLY) &&
inet_addr_type(net, sip) == RTN_UNICAST) || is_garp))
n = __neigh_lookup(&arp_tbl, &sip, dev, 1);
@@ -846,7 +847,7 @@ out:
static void parp_redo(struct sk_buff *skb)
{
- arp_process(skb);
+ arp_process(NULL, skb);
}
@@ -879,7 +880,8 @@ static int arp_rcv(struct sk_buff *skb, struct net_device *dev,
memset(NEIGH_CB(skb), 0, sizeof(struct neighbour_cb));
- return NF_HOOK(NFPROTO_ARP, NF_ARP_IN, skb, dev, NULL, arp_process);
+ return NF_HOOK(NFPROTO_ARP, NF_ARP_IN, NULL, skb,
+ dev, NULL, arp_process);
consumeskb:
consume_skb(skb);
@@ -900,7 +902,7 @@ out_of_mem:
static int arp_req_set_proxy(struct net *net, struct net_device *dev, int on)
{
- if (dev == NULL) {
+ if (!dev) {
IPV4_DEVCONF_ALL(net, PROXY_ARP) = on;
return 0;
}
@@ -926,7 +928,7 @@ static int arp_req_set_public(struct net *net, struct arpreq *r,
return -ENODEV;
}
if (mask) {
- if (pneigh_lookup(&arp_tbl, net, &ip, dev, 1) == NULL)
+ if (!pneigh_lookup(&arp_tbl, net, &ip, dev, 1))
return -ENOBUFS;
return 0;
}
@@ -947,7 +949,7 @@ static int arp_req_set(struct net *net, struct arpreq *r,
ip = ((struct sockaddr_in *)&r->arp_pa)->sin_addr.s_addr;
if (r->arp_flags & ATF_PERM)
r->arp_flags |= ATF_COM;
- if (dev == NULL) {
+ if (!dev) {
struct rtable *rt = ip_route_output(net, ip, 0, RTO_ONLINK, 0);
if (IS_ERR(rt))
@@ -1067,7 +1069,7 @@ static int arp_req_delete(struct net *net, struct arpreq *r,
return arp_req_delete_public(net, r, dev);
ip = ((struct sockaddr_in *)&r->arp_pa)->sin_addr.s_addr;
- if (dev == NULL) {
+ if (!dev) {
struct rtable *rt = ip_route_output(net, ip, 0, RTO_ONLINK, 0);
if (IS_ERR(rt))
return PTR_ERR(rt);
@@ -1116,7 +1118,7 @@ int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg)
if (r.arp_dev[0]) {
err = -ENODEV;
dev = __dev_get_by_name(net, r.arp_dev);
- if (dev == NULL)
+ if (!dev)
goto out;
/* Mmmm... It is wrong... ARPHRD_NETROM==0 */
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index e361ea6f3fc8..bdb2a07ec363 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -255,7 +255,7 @@ static int __init cipso_v4_cache_init(void)
cipso_v4_cache = kcalloc(CIPSO_V4_CACHE_BUCKETS,
sizeof(struct cipso_v4_map_cache_bkt),
GFP_KERNEL);
- if (cipso_v4_cache == NULL)
+ if (!cipso_v4_cache)
return -ENOMEM;
for (iter = 0; iter < CIPSO_V4_CACHE_BUCKETS; iter++) {
@@ -339,7 +339,7 @@ static int cipso_v4_cache_check(const unsigned char *key,
secattr->cache = entry->lsm_data;
secattr->flags |= NETLBL_SECATTR_CACHE;
secattr->type = NETLBL_NLTYPE_CIPSOV4;
- if (prev_entry == NULL) {
+ if (!prev_entry) {
spin_unlock_bh(&cipso_v4_cache[bkt].lock);
return 0;
}
@@ -393,10 +393,10 @@ int cipso_v4_cache_add(const unsigned char *cipso_ptr,
cipso_ptr_len = cipso_ptr[1];
entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
- if (entry == NULL)
+ if (!entry)
return -ENOMEM;
entry->key = kmemdup(cipso_ptr, cipso_ptr_len, GFP_ATOMIC);
- if (entry->key == NULL) {
+ if (!entry->key) {
ret_val = -ENOMEM;
goto cache_add_failure;
}
@@ -502,7 +502,7 @@ int cipso_v4_doi_add(struct cipso_v4_doi *doi_def,
atomic_set(&doi_def->refcount, 1);
spin_lock(&cipso_v4_doi_list_lock);
- if (cipso_v4_doi_search(doi_def->doi) != NULL) {
+ if (cipso_v4_doi_search(doi_def->doi)) {
spin_unlock(&cipso_v4_doi_list_lock);
ret_val = -EEXIST;
goto doi_add_return;
@@ -513,7 +513,7 @@ int cipso_v4_doi_add(struct cipso_v4_doi *doi_def,
doi_add_return:
audit_buf = netlbl_audit_start(AUDIT_MAC_CIPSOV4_ADD, audit_info);
- if (audit_buf != NULL) {
+ if (audit_buf) {
const char *type_str;
switch (doi_type) {
case CIPSO_V4_MAP_TRANS:
@@ -547,7 +547,7 @@ doi_add_return:
*/
void cipso_v4_doi_free(struct cipso_v4_doi *doi_def)
{
- if (doi_def == NULL)
+ if (!doi_def)
return;
switch (doi_def->type) {
@@ -598,7 +598,7 @@ int cipso_v4_doi_remove(u32 doi, struct netlbl_audit *audit_info)
spin_lock(&cipso_v4_doi_list_lock);
doi_def = cipso_v4_doi_search(doi);
- if (doi_def == NULL) {
+ if (!doi_def) {
spin_unlock(&cipso_v4_doi_list_lock);
ret_val = -ENOENT;
goto doi_remove_return;
@@ -617,7 +617,7 @@ int cipso_v4_doi_remove(u32 doi, struct netlbl_audit *audit_info)
doi_remove_return:
audit_buf = netlbl_audit_start(AUDIT_MAC_CIPSOV4_DEL, audit_info);
- if (audit_buf != NULL) {
+ if (audit_buf) {
audit_log_format(audit_buf,
" cipso_doi=%u res=%u",
doi, ret_val == 0 ? 1 : 0);
@@ -644,7 +644,7 @@ struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi)
rcu_read_lock();
doi_def = cipso_v4_doi_search(doi);
- if (doi_def == NULL)
+ if (!doi_def)
goto doi_getdef_return;
if (!atomic_inc_not_zero(&doi_def->refcount))
doi_def = NULL;
@@ -664,7 +664,7 @@ doi_getdef_return:
*/
void cipso_v4_doi_putdef(struct cipso_v4_doi *doi_def)
{
- if (doi_def == NULL)
+ if (!doi_def)
return;
if (!atomic_dec_and_test(&doi_def->refcount))
@@ -1642,7 +1642,7 @@ int cipso_v4_validate(const struct sk_buff *skb, unsigned char **option)
rcu_read_lock();
doi_def = cipso_v4_doi_search(get_unaligned_be32(&opt[2]));
- if (doi_def == NULL) {
+ if (!doi_def) {
err_offset = 2;
goto validate_return_locked;
}
@@ -1736,7 +1736,7 @@ int cipso_v4_validate(const struct sk_buff *skb, unsigned char **option)
* not the loopback device drop the packet. Further,
* there is no legitimate reason for setting this from
* userspace so reject it if skb is NULL. */
- if (skb == NULL || !(skb->dev->flags & IFF_LOOPBACK)) {
+ if (!skb || !(skb->dev->flags & IFF_LOOPBACK)) {
err_offset = opt_iter;
goto validate_return_locked;
}
@@ -1897,7 +1897,7 @@ int cipso_v4_sock_setattr(struct sock *sk,
* defined yet but it is not a problem as the only users of these
* "lite" PF_INET sockets are functions which do an accept() call
* afterwards so we will label the socket as part of the accept(). */
- if (sk == NULL)
+ if (!sk)
return 0;
/* We allocate the maximum CIPSO option size here so we are probably
@@ -1905,7 +1905,7 @@ int cipso_v4_sock_setattr(struct sock *sk,
* on and after all we are only talking about 40 bytes. */
buf_len = CIPSO_V4_OPT_LEN_MAX;
buf = kmalloc(buf_len, GFP_ATOMIC);
- if (buf == NULL) {
+ if (!buf) {
ret_val = -ENOMEM;
goto socket_setattr_failure;
}
@@ -1921,7 +1921,7 @@ int cipso_v4_sock_setattr(struct sock *sk,
* set the IPOPT_CIPSO option. */
opt_len = (buf_len + 3) & ~3;
opt = kzalloc(sizeof(*opt) + opt_len, GFP_ATOMIC);
- if (opt == NULL) {
+ if (!opt) {
ret_val = -ENOMEM;
goto socket_setattr_failure;
}
@@ -1981,7 +1981,7 @@ int cipso_v4_req_setattr(struct request_sock *req,
* on and after all we are only talking about 40 bytes. */
buf_len = CIPSO_V4_OPT_LEN_MAX;
buf = kmalloc(buf_len, GFP_ATOMIC);
- if (buf == NULL) {
+ if (!buf) {
ret_val = -ENOMEM;
goto req_setattr_failure;
}
@@ -1997,7 +1997,7 @@ int cipso_v4_req_setattr(struct request_sock *req,
* set the IPOPT_CIPSO option. */
opt_len = (buf_len + 3) & ~3;
opt = kzalloc(sizeof(*opt) + opt_len, GFP_ATOMIC);
- if (opt == NULL) {
+ if (!opt) {
ret_val = -ENOMEM;
goto req_setattr_failure;
}
@@ -2102,7 +2102,7 @@ void cipso_v4_sock_delattr(struct sock *sk)
sk_inet = inet_sk(sk);
opt = rcu_dereference_protected(sk_inet->inet_opt, 1);
- if (opt == NULL || opt->opt.cipso == 0)
+ if (!opt || opt->opt.cipso == 0)
return;
hdr_delta = cipso_v4_delopt(&sk_inet->inet_opt);
@@ -2128,7 +2128,7 @@ void cipso_v4_req_delattr(struct request_sock *req)
req_inet = inet_rsk(req);
opt = req_inet->opt;
- if (opt == NULL || opt->opt.cipso == 0)
+ if (!opt || opt->opt.cipso == 0)
return;
cipso_v4_delopt(&req_inet->opt);
@@ -2157,7 +2157,7 @@ int cipso_v4_getattr(const unsigned char *cipso,
doi = get_unaligned_be32(&cipso[2]);
rcu_read_lock();
doi_def = cipso_v4_doi_search(doi);
- if (doi_def == NULL)
+ if (!doi_def)
goto getattr_return;
/* XXX - This code assumes only one tag per CIPSO option which isn't
* really a good assumption to make but since we only support the MAC
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index c6473f365ad1..419d23c53ec7 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -585,7 +585,7 @@ static int inet_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh)
ifm = nlmsg_data(nlh);
in_dev = inetdev_by_index(net, ifm->ifa_index);
- if (in_dev == NULL) {
+ if (!in_dev) {
err = -ENODEV;
goto errout;
}
@@ -755,21 +755,21 @@ static struct in_ifaddr *rtm_to_ifaddr(struct net *net, struct nlmsghdr *nlh,
ifm = nlmsg_data(nlh);
err = -EINVAL;
- if (ifm->ifa_prefixlen > 32 || tb[IFA_LOCAL] == NULL)
+ if (ifm->ifa_prefixlen > 32 || !tb[IFA_LOCAL])
goto errout;
dev = __dev_get_by_index(net, ifm->ifa_index);
err = -ENODEV;
- if (dev == NULL)
+ if (!dev)
goto errout;
in_dev = __in_dev_get_rtnl(dev);
err = -ENOBUFS;
- if (in_dev == NULL)
+ if (!in_dev)
goto errout;
ifa = inet_alloc_ifa();
- if (ifa == NULL)
+ if (!ifa)
/*
* A potential indev allocation can be left alive, it stays
* assigned to its device and is destroy with it.
@@ -780,7 +780,7 @@ static struct in_ifaddr *rtm_to_ifaddr(struct net *net, struct nlmsghdr *nlh,
neigh_parms_data_state_setall(in_dev->arp_parms);
in_dev_hold(in_dev);
- if (tb[IFA_ADDRESS] == NULL)
+ if (!tb[IFA_ADDRESS])
tb[IFA_ADDRESS] = tb[IFA_LOCAL];
INIT_HLIST_NODE(&ifa->hash);
@@ -1290,7 +1290,7 @@ __be32 inet_confirm_addr(struct net *net, struct in_device *in_dev,
__be32 addr = 0;
struct net_device *dev;
- if (in_dev != NULL)
+ if (in_dev)
return confirm_addr_indev(in_dev, dst, local, scope);
rcu_read_lock();
@@ -1340,7 +1340,7 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
if (named++ == 0)
goto skip;
dot = strchr(old, ':');
- if (dot == NULL) {
+ if (!dot) {
sprintf(old, ":%d", named);
dot = old;
}
@@ -1509,7 +1509,7 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa,
u32 preferred, valid;
nlh = nlmsg_put(skb, portid, seq, event, sizeof(*ifm), flags);
- if (nlh == NULL)
+ if (!nlh)
return -EMSGSIZE;
ifm = nlmsg_data(nlh);
@@ -1628,7 +1628,7 @@ static void rtmsg_ifa(int event, struct in_ifaddr *ifa, struct nlmsghdr *nlh,
net = dev_net(ifa->ifa_dev->dev);
skb = nlmsg_new(inet_nlmsg_size(), GFP_KERNEL);
- if (skb == NULL)
+ if (!skb)
goto errout;
err = inet_fill_ifaddr(skb, ifa, portid, seq, event, 0);
@@ -1665,7 +1665,7 @@ static int inet_fill_link_af(struct sk_buff *skb, const struct net_device *dev)
return -ENODATA;
nla = nla_reserve(skb, IFLA_INET_CONF, IPV4_DEVCONF_MAX * 4);
- if (nla == NULL)
+ if (!nla)
return -EMSGSIZE;
for (i = 0; i < IPV4_DEVCONF_MAX; i++)
@@ -1754,7 +1754,7 @@ static int inet_netconf_fill_devconf(struct sk_buff *skb, int ifindex,
nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct netconfmsg),
flags);
- if (nlh == NULL)
+ if (!nlh)
return -EMSGSIZE;
ncm = nlmsg_data(nlh);
@@ -1796,7 +1796,7 @@ void inet_netconf_notify_devconf(struct net *net, int type, int ifindex,
int err = -ENOBUFS;
skb = nlmsg_new(inet_netconf_msgsize_devconf(type), GFP_ATOMIC);
- if (skb == NULL)
+ if (!skb)
goto errout;
err = inet_netconf_fill_devconf(skb, ifindex, devconf, 0, 0,
@@ -1853,10 +1853,10 @@ static int inet_netconf_get_devconf(struct sk_buff *in_skb,
break;
default:
dev = __dev_get_by_index(net, ifindex);
- if (dev == NULL)
+ if (!dev)
goto errout;
in_dev = __in_dev_get_rtnl(dev);
- if (in_dev == NULL)
+ if (!in_dev)
goto errout;
devconf = &in_dev->cnf;
break;
@@ -1864,7 +1864,7 @@ static int inet_netconf_get_devconf(struct sk_buff *in_skb,
err = -ENOBUFS;
skb = nlmsg_new(inet_netconf_msgsize_devconf(-1), GFP_ATOMIC);
- if (skb == NULL)
+ if (!skb)
goto errout;
err = inet_netconf_fill_devconf(skb, ifindex, devconf,
@@ -2215,7 +2215,7 @@ static void __devinet_sysctl_unregister(struct ipv4_devconf *cnf)
{
struct devinet_sysctl_table *t = cnf->sysctl;
- if (t == NULL)
+ if (!t)
return;
cnf->sysctl = NULL;
@@ -2276,16 +2276,16 @@ static __net_init int devinet_init_net(struct net *net)
if (!net_eq(net, &init_net)) {
all = kmemdup(all, sizeof(ipv4_devconf), GFP_KERNEL);
- if (all == NULL)
+ if (!all)
goto err_alloc_all;
dflt = kmemdup(dflt, sizeof(ipv4_devconf_dflt), GFP_KERNEL);
- if (dflt == NULL)
+ if (!dflt)
goto err_alloc_dflt;
#ifdef CONFIG_SYSCTL
tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
- if (tbl == NULL)
+ if (!tbl)
goto err_alloc_ctl;
tbl[0].data = &all->data[IPV4_DEVCONF_FORWARDING - 1];
@@ -2305,7 +2305,7 @@ static __net_init int devinet_init_net(struct net *net)
err = -ENOMEM;
forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
- if (forw_hdr == NULL)
+ if (!forw_hdr)
goto err_reg_ctl;
net->ipv4.forw_hdr = forw_hdr;
#endif
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 60173d4d3a0e..421a80b09b62 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -553,7 +553,7 @@ static int esp_init_authenc(struct xfrm_state *x)
int err;
err = -EINVAL;
- if (x->ealg == NULL)
+ if (!x->ealg)
goto error;
err = -ENAMETOOLONG;
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 718b0a16ea40..872494e6e6eb 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -53,11 +53,11 @@ static int __net_init fib4_rules_init(struct net *net)
struct fib_table *local_table, *main_table;
main_table = fib_trie_table(RT_TABLE_MAIN, NULL);
- if (main_table == NULL)
+ if (!main_table)
return -ENOMEM;
local_table = fib_trie_table(RT_TABLE_LOCAL, main_table);
- if (local_table == NULL)
+ if (!local_table)
goto fail;
hlist_add_head_rcu(&local_table->tb_hlist,
@@ -486,7 +486,7 @@ static int rtentry_to_fib_config(struct net *net, int cmd, struct rtentry *rt,
for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next)
if (strcmp(ifa->ifa_label, devname) == 0)
break;
- if (ifa == NULL)
+ if (!ifa)
return -ENODEV;
cfg->fc_prefsrc = ifa->ifa_local;
}
@@ -514,7 +514,7 @@ static int rtentry_to_fib_config(struct net *net, int cmd, struct rtentry *rt,
int len = 0;
mx = kzalloc(3 * nla_total_size(4), GFP_KERNEL);
- if (mx == NULL)
+ if (!mx)
return -ENOMEM;
if (rt->rt_flags & RTF_MTU)
@@ -676,7 +676,7 @@ static int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh)
goto errout;
tb = fib_get_table(net, cfg.fc_table);
- if (tb == NULL) {
+ if (!tb) {
err = -ESRCH;
goto errout;
}
@@ -698,7 +698,7 @@ static int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh)
goto errout;
tb = fib_new_table(net, cfg.fc_table);
- if (tb == NULL) {
+ if (!tb) {
err = -ENOBUFS;
goto errout;
}
@@ -779,7 +779,7 @@ static void fib_magic(int cmd, int type, __be32 dst, int dst_len, struct in_ifad
else
tb = fib_new_table(net, RT_TABLE_LOCAL);
- if (tb == NULL)
+ if (!tb)
return;
cfg.fc_table = tb->tb_id;
@@ -806,7 +806,7 @@ void fib_add_ifaddr(struct in_ifaddr *ifa)
if (ifa->ifa_flags & IFA_F_SECONDARY) {
prim = inet_ifa_byprefix(in_dev, prefix, mask);
- if (prim == NULL) {
+ if (!prim) {
pr_warn("%s: bug: prim == NULL\n", __func__);
return;
}
@@ -860,7 +860,7 @@ void fib_del_ifaddr(struct in_ifaddr *ifa, struct in_ifaddr *iprim)
if (ifa->ifa_flags & IFA_F_SECONDARY) {
prim = inet_ifa_byprefix(in_dev, any, ifa->ifa_mask);
- if (prim == NULL) {
+ if (!prim) {
pr_warn("%s: bug: prim == NULL\n", __func__);
return;
}
@@ -1030,7 +1030,7 @@ static void nl_fib_input(struct sk_buff *skb)
return;
skb = netlink_skb_clone(skb, GFP_KERNEL);
- if (skb == NULL)
+ if (!skb)
return;
nlh = nlmsg_hdr(skb);
@@ -1051,7 +1051,7 @@ static int __net_init nl_fib_lookup_init(struct net *net)
};
sk = netlink_kernel_create(net, NETLINK_FIB_LOOKUP, &cfg);
- if (sk == NULL)
+ if (!sk)
return -EAFNOSUPPORT;
net->ipv4.fibnl = sk;
return 0;
@@ -1089,7 +1089,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
case NETDEV_DOWN:
fib_del_ifaddr(ifa, NULL);
atomic_inc(&net->ipv4.dev_addr_genid);
- if (ifa->ifa_dev->ifa_list == NULL) {
+ if (!ifa->ifa_dev->ifa_list) {
/* Last address was deleted from this interface.
* Disable IP.
*/
@@ -1157,7 +1157,7 @@ static int __net_init ip_fib_net_init(struct net *net)
size = max_t(size_t, size, L1_CACHE_BYTES);
net->ipv4.fib_table_hash = kzalloc(size, GFP_KERNEL);
- if (net->ipv4.fib_table_hash == NULL)
+ if (!net->ipv4.fib_table_hash)
return -ENOMEM;
err = fib4_rules_init(net);
@@ -1175,13 +1175,11 @@ static void ip_fib_net_exit(struct net *net)
unsigned int i;
rtnl_lock();
-
#ifdef CONFIG_IP_MULTIPLE_TABLES
RCU_INIT_POINTER(net->ipv4.fib_local, NULL);
RCU_INIT_POINTER(net->ipv4.fib_main, NULL);
RCU_INIT_POINTER(net->ipv4.fib_default, NULL);
#endif
-
for (i = 0; i < FIB_TABLE_HASHSZ; i++) {
struct hlist_head *head = &net->ipv4.fib_table_hash[i];
struct hlist_node *tmp;
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 8162dd8e86d7..56151982f74e 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -153,7 +153,7 @@ static struct fib_table *fib_empty_table(struct net *net)
u32 id;
for (id = 1; id <= RT_TABLE_MAX; id++)
- if (fib_get_table(net, id) == NULL)
+ if (!fib_get_table(net, id))
return fib_new_table(net, id);
return NULL;
}
@@ -184,7 +184,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
struct fib_table *table;
table = fib_empty_table(net);
- if (table == NULL) {
+ if (!table) {
err = -ENOBUFS;
goto errout;
}
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index eac5aec7772a..8d695b6659c7 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -390,7 +390,7 @@ void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
int err = -ENOBUFS;
skb = nlmsg_new(fib_nlmsg_size(fa->fa_info), GFP_KERNEL);
- if (skb == NULL)
+ if (!skb)
goto errout;
err = fib_dump_info(skb, info->portid, seq, event, tb_id,
@@ -503,7 +503,7 @@ int fib_nh_match(struct fib_config *cfg, struct fib_info *fi)
}
#ifdef CONFIG_IP_ROUTE_MULTIPATH
- if (cfg->fc_mp == NULL)
+ if (!cfg->fc_mp)
return 0;
rtnh = cfg->fc_mp;
@@ -646,7 +646,7 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
rcu_read_lock();
err = -ENODEV;
in_dev = inetdev_by_index(net, nh->nh_oif);
- if (in_dev == NULL)
+ if (!in_dev)
goto out;
err = -ENETDOWN;
if (!(in_dev->dev->flags & IFF_UP))
@@ -803,7 +803,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
}
fi = kzalloc(sizeof(*fi)+nhs*sizeof(struct fib_nh), GFP_KERNEL);
- if (fi == NULL)
+ if (!fi)
goto failure;
fib_info_cnt++;
if (cfg->fc_mx) {
@@ -921,7 +921,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
nh->nh_scope = RT_SCOPE_NOWHERE;
nh->nh_dev = dev_get_by_index(net, fi->fib_nh->nh_oif);
err = -ENODEV;
- if (nh->nh_dev == NULL)
+ if (!nh->nh_dev)
goto failure;
} else {
change_nexthops(fi) {
@@ -995,7 +995,7 @@ int fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event,
struct rtmsg *rtm;
nlh = nlmsg_put(skb, portid, seq, event, sizeof(*rtm), flags);
- if (nlh == NULL)
+ if (!nlh)
return -EMSGSIZE;
rtm = nlmsg_data(nlh);
@@ -1045,12 +1045,12 @@ int fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event,
struct nlattr *mp;
mp = nla_nest_start(skb, RTA_MULTIPATH);
- if (mp == NULL)
+ if (!mp)
goto nla_put_failure;
for_nexthops(fi) {
rtnh = nla_reserve_nohdr(skb, sizeof(*rtnh));
- if (rtnh == NULL)
+ if (!rtnh)
goto nla_put_failure;
rtnh->rtnh_flags = nh->nh_flags & 0xFF;
@@ -1093,7 +1093,7 @@ int fib_sync_down_addr(struct net *net, __be32 local)
struct hlist_head *head = &fib_info_laddrhash[hash];
struct fib_info *fi;
- if (fib_info_laddrhash == NULL || local == 0)
+ if (!fib_info_laddrhash || local == 0)
return 0;
hlist_for_each_entry(fi, head, fib_lhash) {
@@ -1182,7 +1182,7 @@ void fib_select_default(struct fib_result *res)
fib_alias_accessed(fa);
- if (fi == NULL) {
+ if (!fi) {
if (next_fi != res->fi)
break;
} else if (!fib_detect_death(fi, order, &last_resort,
@@ -1195,7 +1195,7 @@ void fib_select_default(struct fib_result *res)
order++;
}
- if (order <= 0 || fi == NULL) {
+ if (order <= 0 || !fi) {
tb->tb_default = -1;
goto out;
}
@@ -1251,7 +1251,7 @@ int fib_sync_up(struct net_device *dev)
alive++;
continue;
}
- if (nexthop_nh->nh_dev == NULL ||
+ if (!nexthop_nh->nh_dev ||
!(nexthop_nh->nh_dev->flags & IFF_UP))
continue;
if (nexthop_nh->nh_dev != dev ||
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 2c7c299ee2b9..e13fcc602da2 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -391,9 +391,9 @@ static void put_child(struct key_vector *tn, unsigned long i,
BUG_ON(i >= child_length(tn));
/* update emptyChildren, overflow into fullChildren */
- if (n == NULL && chi != NULL)
+ if (!n && chi)
empty_child_inc(tn);
- if (n != NULL && chi == NULL)
+ if (n && !chi)
empty_child_dec(tn);
/* update fullChildren */
@@ -528,7 +528,7 @@ static struct key_vector *inflate(struct trie *t,
unsigned long j, k;
/* An empty child */
- if (inode == NULL)
+ if (!inode)
continue;
/* A leaf or an internal node with skipped bits */
@@ -1154,7 +1154,7 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
}
err = -ENOBUFS;
new_fa = kmem_cache_alloc(fn_alias_kmem, GFP_KERNEL);
- if (new_fa == NULL)
+ if (!new_fa)
goto out;
fi_drop = fa->fa_info;
@@ -1204,7 +1204,7 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
err = -ENOBUFS;
new_fa = kmem_cache_alloc(fn_alias_kmem, GFP_KERNEL);
- if (new_fa == NULL)
+ if (!new_fa)
goto out;
new_fa->fa_info = fi;
@@ -1975,7 +1975,7 @@ struct fib_table *fib_trie_table(u32 id, struct fib_table *alias)
sz += sizeof(struct trie);
tb = kzalloc(sz, GFP_KERNEL);
- if (tb == NULL)
+ if (!tb)
return NULL;
tb->tb_id = id;
diff --git a/net/ipv4/geneve.c b/net/ipv4/geneve.c
index 5a4828ba05ad..b77f5e84c623 100644
--- a/net/ipv4/geneve.c
+++ b/net/ipv4/geneve.c
@@ -136,7 +136,7 @@ int geneve_xmit_skb(struct geneve_sock *gs, struct rtable *rt,
skb_set_inner_protocol(skb, htons(ETH_P_TEB));
- return udp_tunnel_xmit_skb(rt, skb, src, dst,
+ return udp_tunnel_xmit_skb(rt, gs->sock->sk, skb, src, dst,
tos, ttl, df, src_port, dst_port, xnet,
!csum);
}
@@ -196,7 +196,7 @@ static struct sk_buff **geneve_gro_receive(struct sk_buff **head,
rcu_read_lock();
ptype = gro_find_receive_by_type(type);
- if (ptype == NULL) {
+ if (!ptype) {
flush = 1;
goto out_unlock;
}
@@ -230,7 +230,7 @@ static int geneve_gro_complete(struct sk_buff *skb, int nhoff,
rcu_read_lock();
ptype = gro_find_complete_by_type(type);
- if (ptype != NULL)
+ if (ptype)
err = ptype->callbacks.gro_complete(skb, nhoff + gh_len);
rcu_read_unlock();
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index 51973ddc05a6..5aa46d4b44ef 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -149,7 +149,7 @@ static struct sk_buff **gre_gro_receive(struct sk_buff **head,
rcu_read_lock();
ptype = gro_find_receive_by_type(type);
- if (ptype == NULL)
+ if (!ptype)
goto out_unlock;
grehlen = GRE_HEADER_SECTION;
@@ -243,7 +243,7 @@ static int gre_gro_complete(struct sk_buff *skb, int nhoff)
rcu_read_lock();
ptype = gro_find_complete_by_type(type);
- if (ptype != NULL)
+ if (ptype)
err = ptype->callbacks.gro_complete(skb, nhoff + grehlen);
rcu_read_unlock();
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 5e564014a0b7..f5203fba6236 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -399,7 +399,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
return;
sk = icmp_xmit_lock(net);
- if (sk == NULL)
+ if (!sk)
return;
inet = inet_sk(sk);
@@ -609,7 +609,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
skb_in->data,
sizeof(_inner_type),
&_inner_type);
- if (itp == NULL)
+ if (!itp)
goto out;
/*
@@ -627,7 +627,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
return;
sk = icmp_xmit_lock(net);
- if (sk == NULL)
+ if (!sk)
goto out_free;
/*
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index ad09213ac5b2..a3a697f5ffba 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -692,7 +692,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
hlen = LL_RESERVED_SPACE(dev);
tlen = dev->needed_tailroom;
skb = alloc_skb(IGMP_SIZE + hlen + tlen, GFP_ATOMIC);
- if (skb == NULL) {
+ if (!skb) {
ip_rt_put(rt);
return -1;
}
@@ -981,7 +981,7 @@ int igmp_rcv(struct sk_buff *skb)
int len = skb->len;
bool dropped = true;
- if (in_dev == NULL)
+ if (!in_dev)
goto drop;
if (!pskb_may_pull(skb, sizeof(struct igmphdr)))
@@ -1888,7 +1888,7 @@ int ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr)
if (count >= sysctl_igmp_max_memberships)
goto done;
iml = sock_kmalloc(sk, sizeof(*iml), GFP_KERNEL);
- if (iml == NULL)
+ if (!iml)
goto done;
memcpy(&iml->multi, imr, sizeof(*imr));
@@ -1909,7 +1909,7 @@ static int ip_mc_leave_src(struct sock *sk, struct ip_mc_socklist *iml,
struct ip_sf_socklist *psf = rtnl_dereference(iml->sflist);
int err;
- if (psf == NULL) {
+ if (!psf) {
/* any-source empty exclude case */
return ip_mc_del_src(in_dev, &iml->multi.imr_multiaddr.s_addr,
iml->sfmode, 0, NULL, 0);
@@ -2360,7 +2360,7 @@ void ip_mc_drop_socket(struct sock *sk)
struct ip_mc_socklist *iml;
struct net *net = sock_net(sk);
- if (inet->mc_list == NULL)
+ if (!inet->mc_list)
return;
rtnl_lock();
@@ -2370,7 +2370,7 @@ void ip_mc_drop_socket(struct sock *sk)
inet->mc_list = iml->next_rcu;
in_dev = inetdev_by_index(net, iml->multi.imr_ifindex);
(void) ip_mc_leave_src(sk, iml, in_dev);
- if (in_dev != NULL)
+ if (in_dev)
ip_mc_dec_group(in_dev, iml->multi.imr_multiaddr.s_addr);
/* decrease mem now to avoid the memleak warning */
atomic_sub(sizeof(*iml), &sk->sk_omem_alloc);
@@ -2587,13 +2587,13 @@ static inline struct ip_sf_list *igmp_mcf_get_first(struct seq_file *seq)
for_each_netdev_rcu(net, state->dev) {
struct in_device *idev;
idev = __in_dev_get_rcu(state->dev);
- if (unlikely(idev == NULL))
+ if (unlikely(!idev))
continue;
im = rcu_dereference(idev->mc_list);
- if (likely(im != NULL)) {
+ if (likely(im)) {
spin_lock_bh(&im->lock);
psf = im->sources;
- if (likely(psf != NULL)) {
+ if (likely(psf)) {
state->im = im;
state->idev = idev;
break;
@@ -2663,7 +2663,7 @@ static void igmp_mcf_seq_stop(struct seq_file *seq, void *v)
__releases(rcu)
{
struct igmp_mcf_iter_state *state = igmp_mcf_seq_private(seq);
- if (likely(state->im != NULL)) {
+ if (likely(state->im)) {
spin_unlock_bh(&state->im->lock);
state->im = NULL;
}
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 79c0c9439fdc..5c3dd6267ed3 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -673,7 +673,7 @@ struct sock *inet_csk_clone_lock(const struct sock *sk,
{
struct sock *newsk = sk_clone_lock(sk, priority);
- if (newsk != NULL) {
+ if (newsk) {
struct inet_connection_sock *newicsk = inet_csk(newsk);
newsk->sk_state = TCP_SYN_RECV;
@@ -843,7 +843,7 @@ void inet_csk_listen_stop(struct sock *sk)
sk_acceptq_removed(sk);
reqsk_put(req);
}
- if (queue->fastopenq != NULL) {
+ if (queue->fastopenq) {
/* Free all the reqs queued in rskq_rst_head. */
spin_lock_bh(&queue->fastopenq->lock);
acc_req = queue->fastopenq->rskq_rst_head;
@@ -875,7 +875,7 @@ int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
{
const struct inet_connection_sock *icsk = inet_csk(sk);
- if (icsk->icsk_af_ops->compat_getsockopt != NULL)
+ if (icsk->icsk_af_ops->compat_getsockopt)
return icsk->icsk_af_ops->compat_getsockopt(sk, level, optname,
optval, optlen);
return icsk->icsk_af_ops->getsockopt(sk, level, optname,
@@ -888,7 +888,7 @@ int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname,
{
const struct inet_connection_sock *icsk = inet_csk(sk);
- if (icsk->icsk_af_ops->compat_setsockopt != NULL)
+ if (icsk->icsk_af_ops->compat_setsockopt)
return icsk->icsk_af_ops->compat_setsockopt(sk, level, optname,
optval, optlen);
return icsk->icsk_af_ops->setsockopt(sk, level, optname,
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index e7920352646a..5e346a082e5f 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -385,7 +385,7 @@ static struct inet_frag_queue *inet_frag_alloc(struct netns_frags *nf,
}
q = kmem_cache_zalloc(f->frags_cachep, GFP_ATOMIC);
- if (q == NULL)
+ if (!q)
return NULL;
q->net = nf;
@@ -406,7 +406,7 @@ static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf,
struct inet_frag_queue *q;
q = inet_frag_alloc(nf, f, arg);
- if (q == NULL)
+ if (!q)
return NULL;
return inet_frag_intern(nf, q, f, arg);
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 0fb841b9d834..d4630bf2d9aa 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -64,7 +64,7 @@ struct inet_bind_bucket *inet_bind_bucket_create(struct kmem_cache *cachep,
{
struct inet_bind_bucket *tb = kmem_cache_alloc(cachep, GFP_ATOMIC);
- if (tb != NULL) {
+ if (tb) {
write_pnet(&tb->ib_net, net);
tb->port = snum;
tb->fastreuse = 0;
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index f38e387448fb..118f0f195820 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -173,7 +173,7 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat
struct inet_timewait_sock *tw =
kmem_cache_alloc(sk->sk_prot_creator->twsk_prot->twsk_slab,
GFP_ATOMIC);
- if (tw != NULL) {
+ if (tw) {
const struct inet_sock *inet = inet_sk(sk);
kmemcheck_annotate_bitfield(tw, flags);
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index d9bc28ac5d1b..939992c456f3 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -57,7 +57,7 @@ static bool ip_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
}
-static int ip_forward_finish(struct sk_buff *skb)
+static int ip_forward_finish(struct sock *sk, struct sk_buff *skb)
{
struct ip_options *opt = &(IPCB(skb)->opt);
@@ -68,7 +68,7 @@ static int ip_forward_finish(struct sk_buff *skb)
ip_forward_options(skb);
skb_sender_cpu_clear(skb);
- return dst_output(skb);
+ return dst_output_sk(sk, skb);
}
int ip_forward(struct sk_buff *skb)
@@ -136,8 +136,8 @@ int ip_forward(struct sk_buff *skb)
skb->priority = rt_tos2priority(iph->tos);
- return NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, skb, skb->dev,
- rt->dst.dev, ip_forward_finish);
+ return NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, NULL, skb,
+ skb->dev, rt->dst.dev, ip_forward_finish);
sr_failed:
/*
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 145a50c4d566..cc1da6d9cb35 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -372,7 +372,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
goto err;
err = -ENOMEM;
- if (pskb_pull(skb, ihl) == NULL)
+ if (!pskb_pull(skb, ihl))
goto err;
err = pskb_trim_rcsum(skb, end - offset);
@@ -537,7 +537,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
qp->q.fragments = head;
}
- WARN_ON(head == NULL);
+ WARN_ON(!head);
WARN_ON(FRAG_CB(head)->offset != 0);
/* Allocate a new buffer for the datagram. */
@@ -559,7 +559,8 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
struct sk_buff *clone;
int i, plen = 0;
- if ((clone = alloc_skb(0, GFP_ATOMIC)) == NULL)
+ clone = alloc_skb(0, GFP_ATOMIC);
+ if (!clone)
goto out_nomem;
clone->next = head->next;
head->next = clone;
@@ -638,7 +639,8 @@ int ip_defrag(struct sk_buff *skb, u32 user)
IP_INC_STATS_BH(net, IPSTATS_MIB_REASMREQDS);
/* Lookup (or create) queue header */
- if ((qp = ip_find(net, ip_hdr(skb), user)) != NULL) {
+ qp = ip_find(net, ip_hdr(skb), user);
+ if (qp) {
int ret;
spin_lock(&qp->q.lock);
@@ -754,7 +756,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
table = ip4_frags_ns_ctl_table;
if (!net_eq(net, &init_net)) {
table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
- if (table == NULL)
+ if (!table)
goto err_alloc;
table[0].data = &net->ipv4.frags.high_thresh;
@@ -770,7 +772,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
}
hdr = register_net_sysctl(net, "net/ipv4", table);
- if (hdr == NULL)
+ if (!hdr)
goto err_reg;
net->ipv4.frags_hdr = hdr;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 0eb2a040a830..5fd706473c73 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -182,7 +182,7 @@ static int ipgre_err(struct sk_buff *skb, u32 info,
t = ip_tunnel_lookup(itn, skb->dev->ifindex, tpi->flags,
iph->daddr, iph->saddr, tpi->key);
- if (t == NULL)
+ if (!t)
return PACKET_REJECT;
if (t->parms.iph.daddr == 0 ||
@@ -423,7 +423,7 @@ static int ipgre_open(struct net_device *dev)
return -EADDRNOTAVAIL;
dev = rt->dst.dev;
ip_rt_put(rt);
- if (__in_dev_get_rtnl(dev) == NULL)
+ if (!__in_dev_get_rtnl(dev))
return -EADDRNOTAVAIL;
t->mlink = dev->ifindex;
ip_mc_inc_group(__in_dev_get_rtnl(dev), t->parms.iph.daddr);
@@ -456,6 +456,7 @@ static const struct net_device_ops ipgre_netdev_ops = {
.ndo_do_ioctl = ipgre_tunnel_ioctl,
.ndo_change_mtu = ip_tunnel_change_mtu,
.ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip_tunnel_get_iflink,
};
#define GRE_FEATURES (NETIF_F_SG | \
@@ -686,6 +687,7 @@ static const struct net_device_ops gre_tap_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = ip_tunnel_change_mtu,
.ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip_tunnel_get_iflink,
};
static void ipgre_tap_setup(struct net_device *dev)
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 3d4da2c16b6a..2db4c8773c1b 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -187,7 +187,7 @@ bool ip_call_ra_chain(struct sk_buff *skb)
return false;
}
-static int ip_local_deliver_finish(struct sk_buff *skb)
+static int ip_local_deliver_finish(struct sock *sk, struct sk_buff *skb)
{
struct net *net = dev_net(skb->dev);
@@ -203,7 +203,7 @@ static int ip_local_deliver_finish(struct sk_buff *skb)
raw = raw_local_deliver(skb, protocol);
ipprot = rcu_dereference(inet_protos[protocol]);
- if (ipprot != NULL) {
+ if (ipprot) {
int ret;
if (!ipprot->no_policy) {
@@ -253,7 +253,8 @@ int ip_local_deliver(struct sk_buff *skb)
return 0;
}
- return NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_IN, skb, skb->dev, NULL,
+ return NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_IN, NULL, skb,
+ skb->dev, NULL,
ip_local_deliver_finish);
}
@@ -309,12 +310,12 @@ drop:
int sysctl_ip_early_demux __read_mostly = 1;
EXPORT_SYMBOL(sysctl_ip_early_demux);
-static int ip_rcv_finish(struct sk_buff *skb)
+static int ip_rcv_finish(struct sock *sk, struct sk_buff *skb)
{
const struct iphdr *iph = ip_hdr(skb);
struct rtable *rt;
- if (sysctl_ip_early_demux && !skb_dst(skb) && skb->sk == NULL) {
+ if (sysctl_ip_early_demux && !skb_dst(skb) && !skb->sk) {
const struct net_protocol *ipprot;
int protocol = iph->protocol;
@@ -387,7 +388,8 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
IP_UPD_PO_STATS_BH(dev_net(dev), IPSTATS_MIB_IN, skb->len);
- if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) {
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb) {
IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INDISCARDS);
goto out;
}
@@ -450,7 +452,8 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
/* Must drop socket now because of tproxy. */
skb_orphan(skb);
- return NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, skb, dev, NULL,
+ return NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, NULL, skb,
+ dev, NULL,
ip_rcv_finish);
csum_error:
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 5b3d91be2db0..bd246792360b 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -264,7 +264,7 @@ int ip_options_compile(struct net *net,
unsigned char *iph;
int optlen, l;
- if (skb != NULL) {
+ if (skb) {
rt = skb_rtable(skb);
optptr = (unsigned char *)&(ip_hdr(skb)[1]);
} else
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 8259e777b249..5da4d15262fd 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -91,14 +91,19 @@ void ip_send_check(struct iphdr *iph)
}
EXPORT_SYMBOL(ip_send_check);
-int __ip_local_out(struct sk_buff *skb)
+int __ip_local_out_sk(struct sock *sk, struct sk_buff *skb)
{
struct iphdr *iph = ip_hdr(skb);
iph->tot_len = htons(skb->len);
ip_send_check(iph);
- return nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, skb, NULL,
- skb_dst(skb)->dev, dst_output);
+ return nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, sk, skb, NULL,
+ skb_dst(skb)->dev, dst_output_sk);
+}
+
+int __ip_local_out(struct sk_buff *skb)
+{
+ return __ip_local_out_sk(skb->sk, skb);
}
int ip_local_out_sk(struct sock *sk, struct sk_buff *skb)
@@ -163,7 +168,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
}
EXPORT_SYMBOL_GPL(ip_build_and_send_pkt);
-static inline int ip_finish_output2(struct sk_buff *skb)
+static inline int ip_finish_output2(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct rtable *rt = (struct rtable *)dst;
@@ -182,7 +187,7 @@ static inline int ip_finish_output2(struct sk_buff *skb)
struct sk_buff *skb2;
skb2 = skb_realloc_headroom(skb, LL_RESERVED_SPACE(dev));
- if (skb2 == NULL) {
+ if (!skb2) {
kfree_skb(skb);
return -ENOMEM;
}
@@ -211,7 +216,7 @@ static inline int ip_finish_output2(struct sk_buff *skb)
return -EINVAL;
}
-static int ip_finish_output_gso(struct sk_buff *skb)
+static int ip_finish_output_gso(struct sock *sk, struct sk_buff *skb)
{
netdev_features_t features;
struct sk_buff *segs;
@@ -220,7 +225,7 @@ static int ip_finish_output_gso(struct sk_buff *skb)
/* common case: locally created skb or seglen is <= mtu */
if (((IPCB(skb)->flags & IPSKB_FORWARDED) == 0) ||
skb_gso_network_seglen(skb) <= ip_skb_dst_mtu(skb))
- return ip_finish_output2(skb);
+ return ip_finish_output2(sk, skb);
/* Slowpath - GSO segment length is exceeding the dst MTU.
*
@@ -243,7 +248,7 @@ static int ip_finish_output_gso(struct sk_buff *skb)
int err;
segs->next = NULL;
- err = ip_fragment(segs, ip_finish_output2);
+ err = ip_fragment(sk, segs, ip_finish_output2);
if (err && ret == 0)
ret = err;
@@ -253,22 +258,22 @@ static int ip_finish_output_gso(struct sk_buff *skb)
return ret;
}
-static int ip_finish_output(struct sk_buff *skb)
+static int ip_finish_output(struct sock *sk, struct sk_buff *skb)
{
#if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
/* Policy lookup after SNAT yielded a new policy */
- if (skb_dst(skb)->xfrm != NULL) {
+ if (skb_dst(skb)->xfrm) {
IPCB(skb)->flags |= IPSKB_REROUTED;
- return dst_output(skb);
+ return dst_output_sk(sk, skb);
}
#endif
if (skb_is_gso(skb))
- return ip_finish_output_gso(skb);
+ return ip_finish_output_gso(sk, skb);
if (skb->len > ip_skb_dst_mtu(skb))
- return ip_fragment(skb, ip_finish_output2);
+ return ip_fragment(sk, skb, ip_finish_output2);
- return ip_finish_output2(skb);
+ return ip_finish_output2(sk, skb);
}
int ip_mc_output(struct sock *sk, struct sk_buff *skb)
@@ -307,7 +312,7 @@ int ip_mc_output(struct sock *sk, struct sk_buff *skb)
struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC);
if (newskb)
NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING,
- newskb, NULL, newskb->dev,
+ sk, newskb, NULL, newskb->dev,
dev_loopback_xmit);
}
@@ -322,11 +327,11 @@ int ip_mc_output(struct sock *sk, struct sk_buff *skb)
if (rt->rt_flags&RTCF_BROADCAST) {
struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC);
if (newskb)
- NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING, newskb,
+ NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, newskb,
NULL, newskb->dev, dev_loopback_xmit);
}
- return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, skb, NULL,
+ return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb, NULL,
skb->dev, ip_finish_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
@@ -340,7 +345,8 @@ int ip_output(struct sock *sk, struct sk_buff *skb)
skb->dev = dev;
skb->protocol = htons(ETH_P_IP);
- return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, skb, NULL, dev,
+ return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb,
+ NULL, dev,
ip_finish_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
@@ -376,12 +382,12 @@ int ip_queue_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl)
inet_opt = rcu_dereference(inet->inet_opt);
fl4 = &fl->u.ip4;
rt = skb_rtable(skb);
- if (rt != NULL)
+ if (rt)
goto packet_routed;
/* Make sure we can route this packet. */
rt = (struct rtable *)__sk_dst_check(sk, 0);
- if (rt == NULL) {
+ if (!rt) {
__be32 daddr;
/* Use correct destination address if we have options. */
@@ -480,7 +486,8 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
* single device frame, and queue such a frame for sending.
*/
-int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
+int ip_fragment(struct sock *sk, struct sk_buff *skb,
+ int (*output)(struct sock *, struct sk_buff *))
{
struct iphdr *iph;
int ptr;
@@ -587,13 +594,13 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
ip_options_fragment(frag);
offset += skb->len - hlen;
iph->frag_off = htons(offset>>3);
- if (frag->next != NULL)
+ if (frag->next)
iph->frag_off |= htons(IP_MF);
/* Ready, complete checksum */
ip_send_check(iph);
}
- err = output(skb);
+ err = output(sk, skb);
if (!err)
IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGCREATES);
@@ -730,7 +737,7 @@ slow_path:
ip_send_check(iph);
- err = output(skb2);
+ err = output(sk, skb2);
if (err)
goto fail;
@@ -790,12 +797,13 @@ static inline int ip_ufo_append_data(struct sock *sk,
* device, so create one single skb packet containing complete
* udp datagram
*/
- if ((skb = skb_peek_tail(queue)) == NULL) {
+ skb = skb_peek_tail(queue);
+ if (!skb) {
skb = sock_alloc_send_skb(sk,
hh_len + fragheaderlen + transhdrlen + 20,
(flags & MSG_DONTWAIT), &err);
- if (skb == NULL)
+ if (!skb)
return err;
/* reserve space for Hardware header */
@@ -961,10 +969,10 @@ alloc_new_skb:
skb = sock_wmalloc(sk,
alloclen + hh_len + 15, 1,
sk->sk_allocation);
- if (unlikely(skb == NULL))
+ if (unlikely(!skb))
err = -ENOBUFS;
}
- if (skb == NULL)
+ if (!skb)
goto error;
/*
@@ -1088,10 +1096,10 @@ static int ip_setup_cork(struct sock *sk, struct inet_cork *cork,
*/
opt = ipc->opt;
if (opt) {
- if (cork->opt == NULL) {
+ if (!cork->opt) {
cork->opt = kmalloc(sizeof(struct ip_options) + 40,
sk->sk_allocation);
- if (unlikely(cork->opt == NULL))
+ if (unlikely(!cork->opt))
return -ENOBUFS;
}
memcpy(cork->opt, &opt->opt, sizeof(struct ip_options) + opt->opt.optlen);
@@ -1198,7 +1206,8 @@ ssize_t ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page,
return -EMSGSIZE;
}
- if ((skb = skb_peek_tail(&sk->sk_write_queue)) == NULL)
+ skb = skb_peek_tail(&sk->sk_write_queue);
+ if (!skb)
return -EINVAL;
cork->length += size;
@@ -1329,7 +1338,8 @@ struct sk_buff *__ip_make_skb(struct sock *sk,
__be16 df = 0;
__u8 ttl;
- if ((skb = __skb_dequeue(queue)) == NULL)
+ skb = __skb_dequeue(queue);
+ if (!skb)
goto out;
tail_skb = &(skb_shinfo(skb)->frag_list);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index f6a0d54b308a..7cfb0893f263 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -351,7 +351,7 @@ int ip_ra_control(struct sock *sk, unsigned char on,
return 0;
}
}
- if (new_ra == NULL) {
+ if (!new_ra) {
spin_unlock_bh(&ip_ra_lock);
return -ENOBUFS;
}
@@ -387,7 +387,7 @@ void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
skb_network_header(skb);
serr->port = port;
- if (skb_pull(skb, payload - skb->data) != NULL) {
+ if (skb_pull(skb, payload - skb->data)) {
skb_reset_transport_header(skb);
if (sock_queue_err_skb(sk, skb) == 0)
return;
@@ -482,7 +482,7 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
err = -EAGAIN;
skb = sock_dequeue_err_skb(sk);
- if (skb == NULL)
+ if (!skb)
goto out;
copied = skb->len;
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 2cd08280c77b..4c2c3ba4ba65 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -389,7 +389,6 @@ static int ip_tunnel_bind_dev(struct net_device *dev)
hlen = tdev->hard_header_len + tdev->needed_headroom;
mtu = tdev->mtu;
}
- dev->iflink = tunnel->parms.link;
dev->needed_headroom = t_hlen + hlen;
mtu -= (dev->hard_header_len + t_hlen);
@@ -655,7 +654,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
if (dst == 0) {
/* NBMA tunnel */
- if (skb_dst(skb) == NULL) {
+ if (!skb_dst(skb)) {
dev->stats.tx_fifo_errors++;
goto tx_error;
}
@@ -673,7 +672,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
neigh = dst_neigh_lookup(skb_dst(skb),
&ipv6_hdr(skb)->daddr);
- if (neigh == NULL)
+ if (!neigh)
goto tx_error;
addr6 = (const struct in6_addr *)&neigh->primary_key;
@@ -783,7 +782,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
return;
}
- err = iptunnel_xmit(skb->sk, rt, skb, fl4.saddr, fl4.daddr, protocol,
+ err = iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, protocol,
tos, ttl, df, !net_eq(tunnel->net, dev_net(dev)));
iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
@@ -844,7 +843,7 @@ int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd)
case SIOCGETTUNNEL:
if (dev == itn->fb_tunnel_dev) {
t = ip_tunnel_find(itn, p, itn->fb_tunnel_dev->type);
- if (t == NULL)
+ if (!t)
t = netdev_priv(dev);
}
memcpy(p, &t->parms, sizeof(*p));
@@ -877,7 +876,7 @@ int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd)
break;
}
if (dev != itn->fb_tunnel_dev && cmd == SIOCCHGTUNNEL) {
- if (t != NULL) {
+ if (t) {
if (t->dev != dev) {
err = -EEXIST;
break;
@@ -915,7 +914,7 @@ int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd)
if (dev == itn->fb_tunnel_dev) {
err = -ENOENT;
t = ip_tunnel_find(itn, p, itn->fb_tunnel_dev->type);
- if (t == NULL)
+ if (!t)
goto done;
err = -EPERM;
if (t == netdev_priv(itn->fb_tunnel_dev))
@@ -980,6 +979,14 @@ struct net *ip_tunnel_get_link_net(const struct net_device *dev)
}
EXPORT_SYMBOL(ip_tunnel_get_link_net);
+int ip_tunnel_get_iflink(const struct net_device *dev)
+{
+ struct ip_tunnel *tunnel = netdev_priv(dev);
+
+ return tunnel->parms.link;
+}
+EXPORT_SYMBOL(ip_tunnel_get_iflink);
+
int ip_tunnel_init_net(struct net *net, int ip_tnl_net_id,
struct rtnl_link_ops *ops, char *devname)
{
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 5a6e27054f0a..9f7269f3c54a 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -60,7 +60,7 @@ static int vti_input(struct sk_buff *skb, int nexthdr, __be32 spi,
tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
iph->saddr, iph->daddr, 0);
- if (tunnel != NULL) {
+ if (tunnel) {
if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
goto drop;
@@ -341,6 +341,7 @@ static const struct net_device_ops vti_netdev_ops = {
.ndo_do_ioctl = vti_tunnel_ioctl,
.ndo_change_mtu = ip_tunnel_change_mtu,
.ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip_tunnel_get_iflink,
};
static void vti_tunnel_setup(struct net_device *dev)
@@ -361,7 +362,6 @@ static int vti_tunnel_init(struct net_device *dev)
dev->hard_header_len = LL_MAX_HEADER + sizeof(struct iphdr);
dev->mtu = ETH_DATA_LEN;
dev->flags = IFF_NOARP;
- dev->iflink = 0;
dev->addr_len = 4;
dev->features |= NETIF_F_LLTX;
netif_keep_dst(dev);
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index c0855d50a3fa..d97f4f2787f5 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -63,7 +63,7 @@ static struct xfrm_state *ipcomp_tunnel_create(struct xfrm_state *x)
struct xfrm_state *t;
t = xfrm_state_alloc(net);
- if (t == NULL)
+ if (!t)
goto out;
t->id.proto = IPPROTO_IPIP;
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index b26376ef87f6..8e7328c6a390 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -504,7 +504,8 @@ ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
if (!net_eq(dev_net(dev), &init_net))
goto drop;
- if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb)
return NET_RX_DROP;
if (!pskb_may_pull(skb, sizeof(struct arphdr)))
@@ -958,7 +959,8 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
if (skb->pkt_type == PACKET_OTHERHOST)
goto drop;
- if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb)
return NET_RX_DROP;
if (!pskb_may_pull(skb,
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index bfbcc85c02ee..ff96396ebec5 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -144,7 +144,7 @@ static int ipip_err(struct sk_buff *skb, u32 info)
err = -ENOENT;
t = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
iph->daddr, iph->saddr, 0);
- if (t == NULL)
+ if (!t)
goto out;
if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
@@ -272,6 +272,7 @@ static const struct net_device_ops ipip_netdev_ops = {
.ndo_do_ioctl = ipip_tunnel_ioctl,
.ndo_change_mtu = ip_tunnel_change_mtu,
.ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip_tunnel_get_iflink,
};
#define IPIP_FEATURES (NETIF_F_SG | \
@@ -286,7 +287,6 @@ static void ipip_tunnel_setup(struct net_device *dev)
dev->type = ARPHRD_TUNNEL;
dev->flags = IFF_NOARP;
- dev->iflink = 0;
dev->addr_len = 4;
dev->features |= NETIF_F_LLTX;
netif_keep_dst(dev);
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index b4a545d24adb..3a2c0162c3ba 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -189,7 +189,7 @@ static int ipmr_rule_action(struct fib_rule *rule, struct flowi *flp,
}
mrt = ipmr_get_table(rule->fr_net, rule->table);
- if (mrt == NULL)
+ if (!mrt)
return -EAGAIN;
res->mrt = mrt;
return 0;
@@ -253,7 +253,7 @@ static int __net_init ipmr_rules_init(struct net *net)
INIT_LIST_HEAD(&net->ipv4.mr_tables);
mrt = ipmr_new_table(net, RT_TABLE_DEFAULT);
- if (mrt == NULL) {
+ if (!mrt) {
err = -ENOMEM;
goto err1;
}
@@ -266,7 +266,7 @@ static int __net_init ipmr_rules_init(struct net *net)
return 0;
err2:
- kfree(mrt);
+ ipmr_free_table(mrt);
err1:
fib_rules_unregister(ops);
return err;
@@ -276,11 +276,13 @@ static void __net_exit ipmr_rules_exit(struct net *net)
{
struct mr_table *mrt, *next;
+ rtnl_lock();
list_for_each_entry_safe(mrt, next, &net->ipv4.mr_tables, list) {
list_del(&mrt->list);
ipmr_free_table(mrt);
}
fib_rules_unregister(net->ipv4.mr_rules_ops);
+ rtnl_unlock();
}
#else
#define ipmr_for_each_table(mrt, net) \
@@ -306,7 +308,10 @@ static int __net_init ipmr_rules_init(struct net *net)
static void __net_exit ipmr_rules_exit(struct net *net)
{
+ rtnl_lock();
ipmr_free_table(net->ipv4.mrt);
+ net->ipv4.mrt = NULL;
+ rtnl_unlock();
}
#endif
@@ -316,11 +321,11 @@ static struct mr_table *ipmr_new_table(struct net *net, u32 id)
unsigned int i;
mrt = ipmr_get_table(net, id);
- if (mrt != NULL)
+ if (mrt)
return mrt;
mrt = kzalloc(sizeof(*mrt), GFP_KERNEL);
- if (mrt == NULL)
+ if (!mrt)
return NULL;
write_pnet(&mrt->net, net);
mrt->id = id;
@@ -422,7 +427,7 @@ struct net_device *ipmr_new_tunnel(struct net *net, struct vifctl *v)
dev->flags |= IFF_MULTICAST;
in_dev = __in_dev_get_rtnl(dev);
- if (in_dev == NULL)
+ if (!in_dev)
goto failure;
ipv4_devconf_setall(in_dev);
@@ -473,8 +478,14 @@ static netdev_tx_t reg_vif_xmit(struct sk_buff *skb, struct net_device *dev)
return NETDEV_TX_OK;
}
+static int reg_vif_get_iflink(const struct net_device *dev)
+{
+ return 0;
+}
+
static const struct net_device_ops reg_vif_netdev_ops = {
.ndo_start_xmit = reg_vif_xmit,
+ .ndo_get_iflink = reg_vif_get_iflink,
};
static void reg_vif_setup(struct net_device *dev)
@@ -500,7 +511,7 @@ static struct net_device *ipmr_reg_vif(struct net *net, struct mr_table *mrt)
dev = alloc_netdev(0, name, NET_NAME_UNKNOWN, reg_vif_setup);
- if (dev == NULL)
+ if (!dev)
return NULL;
dev_net_set(dev, net);
@@ -509,7 +520,6 @@ static struct net_device *ipmr_reg_vif(struct net *net, struct mr_table *mrt)
free_netdev(dev);
return NULL;
}
- dev->iflink = 0;
rcu_read_lock();
in_dev = __in_dev_get_rcu(dev);
@@ -757,7 +767,7 @@ static int vif_add(struct net *net, struct mr_table *mrt,
case 0:
if (vifc->vifc_flags == VIFF_USE_IFINDEX) {
dev = dev_get_by_index(net, vifc->vifc_lcl_ifindex);
- if (dev && __in_dev_get_rtnl(dev) == NULL) {
+ if (dev && !__in_dev_get_rtnl(dev)) {
dev_put(dev);
return -EADDRNOTAVAIL;
}
@@ -801,7 +811,7 @@ static int vif_add(struct net *net, struct mr_table *mrt,
v->pkt_out = 0;
v->link = dev->ifindex;
if (v->flags & (VIFF_TUNNEL | VIFF_REGISTER))
- v->link = dev->iflink;
+ v->link = dev_get_iflink(dev);
/* And finish update writing critical data */
write_lock_bh(&mrt_lock);
@@ -1003,7 +1013,7 @@ static int ipmr_cache_report(struct mr_table *mrt,
rcu_read_lock();
mroute_sk = rcu_dereference(mrt->mroute_sk);
- if (mroute_sk == NULL) {
+ if (!mroute_sk) {
rcu_read_unlock();
kfree_skb(skb);
return -EINVAL;
@@ -1156,7 +1166,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
return -EINVAL;
c = ipmr_cache_alloc();
- if (c == NULL)
+ if (!c)
return -ENOMEM;
c->mfc_origin = mfc->mfcc_origin.s_addr;
@@ -1278,7 +1288,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi
return -EOPNOTSUPP;
mrt = ipmr_get_table(net, raw_sk(sk)->ipmr_table ? : RT_TABLE_DEFAULT);
- if (mrt == NULL)
+ if (!mrt)
return -ENOENT;
if (optname != MRT_INIT) {
@@ -1441,7 +1451,7 @@ int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int
return -EOPNOTSUPP;
mrt = ipmr_get_table(net, raw_sk(sk)->ipmr_table ? : RT_TABLE_DEFAULT);
- if (mrt == NULL)
+ if (!mrt)
return -ENOENT;
if (optname != MRT_VERSION &&
@@ -1487,7 +1497,7 @@ int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
struct mr_table *mrt;
mrt = ipmr_get_table(net, raw_sk(sk)->ipmr_table ? : RT_TABLE_DEFAULT);
- if (mrt == NULL)
+ if (!mrt)
return -ENOENT;
switch (cmd) {
@@ -1561,7 +1571,7 @@ int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
struct mr_table *mrt;
mrt = ipmr_get_table(net, raw_sk(sk)->ipmr_table ? : RT_TABLE_DEFAULT);
- if (mrt == NULL)
+ if (!mrt)
return -ENOENT;
switch (cmd) {
@@ -1669,7 +1679,7 @@ static void ip_encap(struct net *net, struct sk_buff *skb,
nf_reset(skb);
}
-static inline int ipmr_forward_finish(struct sk_buff *skb)
+static inline int ipmr_forward_finish(struct sock *sk, struct sk_buff *skb)
{
struct ip_options *opt = &(IPCB(skb)->opt);
@@ -1679,7 +1689,7 @@ static inline int ipmr_forward_finish(struct sk_buff *skb)
if (unlikely(opt->optlen))
ip_forward_options(skb);
- return dst_output(skb);
+ return dst_output_sk(sk, skb);
}
/*
@@ -1696,7 +1706,7 @@ static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt,
struct flowi4 fl4;
int encap = 0;
- if (vif->dev == NULL)
+ if (!vif->dev)
goto out_free;
#ifdef CONFIG_IP_PIMSM
@@ -1778,7 +1788,8 @@ static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt,
* not mrouter) cannot join to more than one interface - it will
* result in receiving multiple packets.
*/
- NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, skb, skb->dev, dev,
+ NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, NULL, skb,
+ skb->dev, dev,
ipmr_forward_finish);
return;
@@ -1987,7 +1998,7 @@ int ip_mr_input(struct sk_buff *skb)
/* already under rcu_read_lock() */
cache = ipmr_cache_find(mrt, ip_hdr(skb)->saddr, ip_hdr(skb)->daddr);
- if (cache == NULL) {
+ if (!cache) {
int vif = ipmr_find_vif(mrt, skb->dev);
if (vif >= 0)
@@ -1998,13 +2009,13 @@ int ip_mr_input(struct sk_buff *skb)
/*
* No usable cache entry
*/
- if (cache == NULL) {
+ if (!cache) {
int vif;
if (local) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
ip_local_deliver(skb);
- if (skb2 == NULL)
+ if (!skb2)
return -ENOBUFS;
skb = skb2;
}
@@ -2063,7 +2074,7 @@ static int __pim_rcv(struct mr_table *mrt, struct sk_buff *skb,
reg_dev = mrt->vif_table[mrt->mroute_reg_vif_num].dev;
read_unlock(&mrt_lock);
- if (reg_dev == NULL)
+ if (!reg_dev)
return 1;
skb->mac_header = skb->network_header;
@@ -2193,18 +2204,18 @@ int ipmr_get_route(struct net *net, struct sk_buff *skb,
int err;
mrt = ipmr_get_table(net, RT_TABLE_DEFAULT);
- if (mrt == NULL)
+ if (!mrt)
return -ENOENT;
rcu_read_lock();
cache = ipmr_cache_find(mrt, saddr, daddr);
- if (cache == NULL && skb->dev) {
+ if (!cache && skb->dev) {
int vif = ipmr_find_vif(mrt, skb->dev);
if (vif >= 0)
cache = ipmr_cache_find_any(mrt, daddr, vif);
}
- if (cache == NULL) {
+ if (!cache) {
struct sk_buff *skb2;
struct iphdr *iph;
struct net_device *dev;
@@ -2262,7 +2273,7 @@ static int ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
int err;
nlh = nlmsg_put(skb, portid, seq, cmd, sizeof(*rtm), flags);
- if (nlh == NULL)
+ if (!nlh)
return -EMSGSIZE;
rtm = nlmsg_data(nlh);
@@ -2327,7 +2338,7 @@ static void mroute_netlink_event(struct mr_table *mrt, struct mfc_cache *mfc,
skb = nlmsg_new(mroute_msgsize(mfc->mfc_parent >= MAXVIFS, mrt->maxvif),
GFP_ATOMIC);
- if (skb == NULL)
+ if (!skb)
goto errout;
err = ipmr_fill_mroute(mrt, skb, 0, 0, mfc, cmd, 0);
@@ -2442,7 +2453,7 @@ static void *ipmr_vif_seq_start(struct seq_file *seq, loff_t *pos)
struct mr_table *mrt;
mrt = ipmr_get_table(net, RT_TABLE_DEFAULT);
- if (mrt == NULL)
+ if (!mrt)
return ERR_PTR(-ENOENT);
iter->mrt = mrt;
@@ -2561,7 +2572,7 @@ static void *ipmr_mfc_seq_start(struct seq_file *seq, loff_t *pos)
struct mr_table *mrt;
mrt = ipmr_get_table(net, RT_TABLE_DEFAULT);
- if (mrt == NULL)
+ if (!mrt)
return ERR_PTR(-ENOENT);
it->mrt = mrt;
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 7ebd6e37875c..65de0684e22a 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -94,7 +94,7 @@ static void nf_ip_saveroute(const struct sk_buff *skb,
{
struct ip_rt_info *rt_info = nf_queue_entry_reroute(entry);
- if (entry->hook == NF_INET_LOCAL_OUT) {
+ if (entry->state.hook == NF_INET_LOCAL_OUT) {
const struct iphdr *iph = ip_hdr(skb);
rt_info->tos = iph->tos;
@@ -109,7 +109,7 @@ static int nf_ip_reroute(struct sk_buff *skb,
{
const struct ip_rt_info *rt_info = nf_queue_entry_reroute(entry);
- if (entry->hook == NF_INET_LOCAL_OUT) {
+ if (entry->state.hook == NF_INET_LOCAL_OUT) {
const struct iphdr *iph = ip_hdr(skb);
if (!(iph->tos == rt_info->tos &&
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index f95b6f93814b..13bfe84bf3ca 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -248,8 +248,7 @@ struct arpt_entry *arpt_next_entry(const struct arpt_entry *entry)
unsigned int arpt_do_table(struct sk_buff *skb,
unsigned int hook,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct xt_table *table)
{
static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
@@ -265,8 +264,8 @@ unsigned int arpt_do_table(struct sk_buff *skb,
if (!pskb_may_pull(skb, arp_hdr_len(skb->dev)))
return NF_DROP;
- indev = in ? in->name : nulldevname;
- outdev = out ? out->name : nulldevname;
+ indev = state->in ? state->in->name : nulldevname;
+ outdev = state->out ? state->out->name : nulldevname;
local_bh_disable();
addend = xt_write_recseq_begin();
@@ -281,8 +280,8 @@ unsigned int arpt_do_table(struct sk_buff *skb,
e = get_entry(table_base, private->hook_entry[hook]);
back = get_entry(table_base, private->underflow[hook]);
- acpar.in = in;
- acpar.out = out;
+ acpar.in = state->in;
+ acpar.out = state->out;
acpar.hooknum = hook;
acpar.family = NFPROTO_ARP;
acpar.hotdrop = false;
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index 802ddecb30b8..93876d03120c 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -28,12 +28,11 @@ static const struct xt_table packet_filter = {
/* The work comes in here from netfilter.c */
static unsigned int
arptable_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- const struct net *net = dev_net((in != NULL) ? in : out);
+ const struct net *net = dev_net(state->in ? state->in : state->out);
- return arpt_do_table(skb, ops->hooknum, in, out,
+ return arpt_do_table(skb, ops->hooknum, state,
net->ipv4.arptable_filter);
}
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index cf5e82f39d3b..c69db7fa25ee 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -288,8 +288,7 @@ struct ipt_entry *ipt_next_entry(const struct ipt_entry *entry)
unsigned int
ipt_do_table(struct sk_buff *skb,
unsigned int hook,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct xt_table *table)
{
static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
@@ -306,8 +305,8 @@ ipt_do_table(struct sk_buff *skb,
/* Initialization */
ip = ip_hdr(skb);
- indev = in ? in->name : nulldevname;
- outdev = out ? out->name : nulldevname;
+ indev = state->in ? state->in->name : nulldevname;
+ outdev = state->out ? state->out->name : nulldevname;
/* We handle fragments by dealing with the first fragment as
* if it was a normal packet. All other fragments are treated
* normally, except that they will NEVER match rules that ask
@@ -317,8 +316,8 @@ ipt_do_table(struct sk_buff *skb,
acpar.fragoff = ntohs(ip->frag_off) & IP_OFFSET;
acpar.thoff = ip_hdrlen(skb);
acpar.hotdrop = false;
- acpar.in = in;
- acpar.out = out;
+ acpar.in = state->in;
+ acpar.out = state->out;
acpar.family = NFPROTO_IPV4;
acpar.hooknum = hook;
@@ -370,7 +369,7 @@ ipt_do_table(struct sk_buff *skb,
#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
/* The packet is traced: log it */
if (unlikely(skb->nf_trace))
- trace_packet(skb, hook, in, out,
+ trace_packet(skb, hook, state->in, state->out,
table->name, private, e);
#endif
/* Standard target? */
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index f75e9df5e017..771ab3d01ad3 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -504,14 +504,12 @@ static void arp_print(struct arp_payload *payload)
static unsigned int
arp_mangle(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct arphdr *arp = arp_hdr(skb);
struct arp_payload *payload;
struct clusterip_config *c;
- struct net *net = dev_net(in ? in : out);
+ struct net *net = dev_net(state->in ? state->in : state->out);
/* we don't care about non-ethernet and non-ipv4 ARP */
if (arp->ar_hrd != htons(ARPHRD_ETHER) ||
@@ -536,10 +534,10 @@ arp_mangle(const struct nf_hook_ops *ops,
* addresses on different interfacs. However, in the CLUSTERIP case
* this wouldn't work, since we didn't subscribe the mcast group on
* other interfaces */
- if (c->dev != out) {
+ if (c->dev != state->out) {
pr_debug("not mangling arp reply on different "
"interface: cip'%s'-skb'%s'\n",
- c->dev->name, out->name);
+ c->dev->name, state->out->name);
clusterip_config_put(c);
return NF_ACCEPT;
}
diff --git a/net/ipv4/netfilter/ipt_SYNPROXY.c b/net/ipv4/netfilter/ipt_SYNPROXY.c
index a313c3fbeb46..e9e67793055f 100644
--- a/net/ipv4/netfilter/ipt_SYNPROXY.c
+++ b/net/ipv4/netfilter/ipt_SYNPROXY.c
@@ -300,11 +300,9 @@ synproxy_tg4(struct sk_buff *skb, const struct xt_action_param *par)
static unsigned int ipv4_synproxy_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *nhs)
{
- struct synproxy_net *snet = synproxy_pernet(dev_net(in ? : out));
+ struct synproxy_net *snet = synproxy_pernet(dev_net(nhs->in ? : nhs->out));
enum ip_conntrack_info ctinfo;
struct nf_conn *ct;
struct nf_conn_synproxy *synproxy;
diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c
index e08a74a243a8..a0f3beca52d2 100644
--- a/net/ipv4/netfilter/iptable_filter.c
+++ b/net/ipv4/netfilter/iptable_filter.c
@@ -34,8 +34,7 @@ static const struct xt_table packet_filter = {
static unsigned int
iptable_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
const struct net *net;
@@ -45,9 +44,8 @@ iptable_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
/* root is playing with raw sockets. */
return NF_ACCEPT;
- net = dev_net((in != NULL) ? in : out);
- return ipt_do_table(skb, ops->hooknum, in, out,
- net->ipv4.iptable_filter);
+ net = dev_net(state->in ? state->in : state->out);
+ return ipt_do_table(skb, ops->hooknum, state, net->ipv4.iptable_filter);
}
static struct nf_hook_ops *filter_ops __read_mostly;
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index 6a5079c34bb3..62cbb8c5f4a8 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/net/ipv4/netfilter/iptable_mangle.c
@@ -37,8 +37,9 @@ static const struct xt_table packet_mangler = {
};
static unsigned int
-ipt_mangle_out(struct sk_buff *skb, const struct net_device *out)
+ipt_mangle_out(struct sk_buff *skb, const struct nf_hook_state *state)
{
+ struct net_device *out = state->out;
unsigned int ret;
const struct iphdr *iph;
u_int8_t tos;
@@ -58,7 +59,7 @@ ipt_mangle_out(struct sk_buff *skb, const struct net_device *out)
daddr = iph->daddr;
tos = iph->tos;
- ret = ipt_do_table(skb, NF_INET_LOCAL_OUT, NULL, out,
+ ret = ipt_do_table(skb, NF_INET_LOCAL_OUT, state,
dev_net(out)->ipv4.iptable_mangle);
/* Reroute for ANY change. */
if (ret != NF_DROP && ret != NF_STOLEN) {
@@ -81,18 +82,16 @@ ipt_mangle_out(struct sk_buff *skb, const struct net_device *out)
static unsigned int
iptable_mangle_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
if (ops->hooknum == NF_INET_LOCAL_OUT)
- return ipt_mangle_out(skb, out);
+ return ipt_mangle_out(skb, state);
if (ops->hooknum == NF_INET_POST_ROUTING)
- return ipt_do_table(skb, ops->hooknum, in, out,
- dev_net(out)->ipv4.iptable_mangle);
+ return ipt_do_table(skb, ops->hooknum, state,
+ dev_net(state->out)->ipv4.iptable_mangle);
/* PREROUTING/INPUT/FORWARD: */
- return ipt_do_table(skb, ops->hooknum, in, out,
- dev_net(in)->ipv4.iptable_mangle);
+ return ipt_do_table(skb, ops->hooknum, state,
+ dev_net(state->in)->ipv4.iptable_mangle);
}
static struct nf_hook_ops *mangle_ops __read_mostly;
diff --git a/net/ipv4/netfilter/iptable_nat.c b/net/ipv4/netfilter/iptable_nat.c
index 6b67d7e9a75d..0d4d9cdf98a4 100644
--- a/net/ipv4/netfilter/iptable_nat.c
+++ b/net/ipv4/netfilter/iptable_nat.c
@@ -30,49 +30,40 @@ static const struct xt_table nf_nat_ipv4_table = {
static unsigned int iptable_nat_do_chain(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct)
{
struct net *net = nf_ct_net(ct);
- return ipt_do_table(skb, ops->hooknum, in, out, net->ipv4.nat_table);
+ return ipt_do_table(skb, ops->hooknum, state, net->ipv4.nat_table);
}
static unsigned int iptable_nat_ipv4_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv4_fn(ops, skb, in, out, iptable_nat_do_chain);
+ return nf_nat_ipv4_fn(ops, skb, state, iptable_nat_do_chain);
}
static unsigned int iptable_nat_ipv4_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv4_in(ops, skb, in, out, iptable_nat_do_chain);
+ return nf_nat_ipv4_in(ops, skb, state, iptable_nat_do_chain);
}
static unsigned int iptable_nat_ipv4_out(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv4_out(ops, skb, in, out, iptable_nat_do_chain);
+ return nf_nat_ipv4_out(ops, skb, state, iptable_nat_do_chain);
}
static unsigned int iptable_nat_ipv4_local_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv4_local_fn(ops, skb, in, out, iptable_nat_do_chain);
+ return nf_nat_ipv4_local_fn(ops, skb, state, iptable_nat_do_chain);
}
static struct nf_hook_ops nf_nat_ipv4_ops[] __read_mostly = {
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index b2f7e8f98316..0356e6da4bb7 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -21,8 +21,7 @@ static const struct xt_table packet_raw = {
/* The work comes in here from netfilter.c. */
static unsigned int
iptable_raw_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
const struct net *net;
@@ -32,8 +31,8 @@ iptable_raw_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
/* root is playing with raw sockets. */
return NF_ACCEPT;
- net = dev_net((in != NULL) ? in : out);
- return ipt_do_table(skb, ops->hooknum, in, out, net->ipv4.iptable_raw);
+ net = dev_net(state->in ? state->in : state->out);
+ return ipt_do_table(skb, ops->hooknum, state, net->ipv4.iptable_raw);
}
static struct nf_hook_ops *rawtable_ops __read_mostly;
diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c
index c86647ed2078..4bce3980ccd9 100644
--- a/net/ipv4/netfilter/iptable_security.c
+++ b/net/ipv4/netfilter/iptable_security.c
@@ -38,9 +38,7 @@ static const struct xt_table security_table = {
static unsigned int
iptable_security_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
const struct net *net;
@@ -50,8 +48,8 @@ iptable_security_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
/* Somebody is playing with raw sockets. */
return NF_ACCEPT;
- net = dev_net((in != NULL) ? in : out);
- return ipt_do_table(skb, ops->hooknum, in, out,
+ net = dev_net(state->in ? state->in : state->out);
+ return ipt_do_table(skb, ops->hooknum, state,
net->ipv4.iptable_security);
}
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 8c8d6642cbb0..30ad9554b5e9 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -94,9 +94,7 @@ static int ipv4_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
static unsigned int ipv4_helper(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
@@ -123,9 +121,7 @@ static unsigned int ipv4_helper(const struct nf_hook_ops *ops,
static unsigned int ipv4_confirm(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
@@ -149,24 +145,20 @@ out:
static unsigned int ipv4_conntrack_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_conntrack_in(dev_net(in), PF_INET, ops->hooknum, skb);
+ return nf_conntrack_in(dev_net(state->in), PF_INET, ops->hooknum, skb);
}
static unsigned int ipv4_conntrack_local(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
/* root is playing with raw sockets. */
if (skb->len < sizeof(struct iphdr) ||
ip_hdrlen(skb) < sizeof(struct iphdr))
return NF_ACCEPT;
- return nf_conntrack_in(dev_net(out), PF_INET, ops->hooknum, skb);
+ return nf_conntrack_in(dev_net(state->out), PF_INET, ops->hooknum, skb);
}
/* Connection tracking may drop packets, but never alters them, so
diff --git a/net/ipv4/netfilter/nf_defrag_ipv4.c b/net/ipv4/netfilter/nf_defrag_ipv4.c
index 7e5ca6f2d0cd..c88b7d434718 100644
--- a/net/ipv4/netfilter/nf_defrag_ipv4.c
+++ b/net/ipv4/netfilter/nf_defrag_ipv4.c
@@ -63,9 +63,7 @@ static enum ip_defrag_users nf_ct_defrag_user(unsigned int hooknum,
static unsigned int ipv4_conntrack_defrag(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct sock *sk = skb->sk;
struct inet_sock *inet = inet_sk(skb->sk);
diff --git a/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c b/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
index fc37711e11f3..e59cc05c09e9 100644
--- a/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
@@ -256,11 +256,10 @@ EXPORT_SYMBOL_GPL(nf_nat_icmp_reply_translation);
unsigned int
nf_nat_ipv4_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
+ const struct nf_hook_state *state,
unsigned int (*do_chain)(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct))
{
struct nf_conn *ct;
@@ -309,7 +308,7 @@ nf_nat_ipv4_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
if (!nf_nat_initialized(ct, maniptype)) {
unsigned int ret;
- ret = do_chain(ops, skb, in, out, ct);
+ ret = do_chain(ops, skb, state, ct);
if (ret != NF_ACCEPT)
return ret;
@@ -323,7 +322,8 @@ nf_nat_ipv4_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
pr_debug("Already setup manip %s for ct %p\n",
maniptype == NF_NAT_MANIP_SRC ? "SRC" : "DST",
ct);
- if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
+ if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat,
+ state->out))
goto oif_changed;
}
break;
@@ -332,7 +332,7 @@ nf_nat_ipv4_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
/* ESTABLISHED */
NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
ctinfo == IP_CT_ESTABLISHED_REPLY);
- if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
+ if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, state->out))
goto oif_changed;
}
@@ -346,17 +346,16 @@ EXPORT_SYMBOL_GPL(nf_nat_ipv4_fn);
unsigned int
nf_nat_ipv4_in(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
+ const struct nf_hook_state *state,
unsigned int (*do_chain)(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct))
{
unsigned int ret;
__be32 daddr = ip_hdr(skb)->daddr;
- ret = nf_nat_ipv4_fn(ops, skb, in, out, do_chain);
+ ret = nf_nat_ipv4_fn(ops, skb, state, do_chain);
if (ret != NF_DROP && ret != NF_STOLEN &&
daddr != ip_hdr(skb)->daddr)
skb_dst_drop(skb);
@@ -367,11 +366,10 @@ EXPORT_SYMBOL_GPL(nf_nat_ipv4_in);
unsigned int
nf_nat_ipv4_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
+ const struct nf_hook_state *state,
unsigned int (*do_chain)(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct))
{
#ifdef CONFIG_XFRM
@@ -386,7 +384,7 @@ nf_nat_ipv4_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
ip_hdrlen(skb) < sizeof(struct iphdr))
return NF_ACCEPT;
- ret = nf_nat_ipv4_fn(ops, skb, in, out, do_chain);
+ ret = nf_nat_ipv4_fn(ops, skb, state, do_chain);
#ifdef CONFIG_XFRM
if (ret != NF_DROP && ret != NF_STOLEN &&
!(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) &&
@@ -410,11 +408,10 @@ EXPORT_SYMBOL_GPL(nf_nat_ipv4_out);
unsigned int
nf_nat_ipv4_local_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
+ const struct nf_hook_state *state,
unsigned int (*do_chain)(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct))
{
const struct nf_conn *ct;
@@ -427,7 +424,7 @@ nf_nat_ipv4_local_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
ip_hdrlen(skb) < sizeof(struct iphdr))
return NF_ACCEPT;
- ret = nf_nat_ipv4_fn(ops, skb, in, out, do_chain);
+ ret = nf_nat_ipv4_fn(ops, skb, state, do_chain);
if (ret != NF_DROP && ret != NF_STOLEN &&
(ct = nf_ct_get(skb, &ctinfo)) != NULL) {
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
diff --git a/net/ipv4/netfilter/nf_tables_arp.c b/net/ipv4/netfilter/nf_tables_arp.c
index 19412a4063fb..8412268bbad1 100644
--- a/net/ipv4/netfilter/nf_tables_arp.c
+++ b/net/ipv4/netfilter/nf_tables_arp.c
@@ -17,13 +17,11 @@
static unsigned int
nft_do_chain_arp(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nft_pktinfo pkt;
- nft_set_pktinfo(&pkt, ops, skb, in, out);
+ nft_set_pktinfo(&pkt, ops, skb, state);
return nft_do_chain(&pkt, ops);
}
diff --git a/net/ipv4/netfilter/nf_tables_ipv4.c b/net/ipv4/netfilter/nf_tables_ipv4.c
index 6820c8c40842..aa180d3a69a5 100644
--- a/net/ipv4/netfilter/nf_tables_ipv4.c
+++ b/net/ipv4/netfilter/nf_tables_ipv4.c
@@ -20,22 +20,18 @@
static unsigned int nft_do_chain_ipv4(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nft_pktinfo pkt;
- nft_set_pktinfo_ipv4(&pkt, ops, skb, in, out);
+ nft_set_pktinfo_ipv4(&pkt, ops, skb, state);
return nft_do_chain(&pkt, ops);
}
static unsigned int nft_ipv4_output(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
if (unlikely(skb->len < sizeof(struct iphdr) ||
ip_hdr(skb)->ihl < sizeof(struct iphdr) / 4)) {
@@ -45,7 +41,7 @@ static unsigned int nft_ipv4_output(const struct nf_hook_ops *ops,
return NF_ACCEPT;
}
- return nft_do_chain_ipv4(ops, skb, in, out, okfn);
+ return nft_do_chain_ipv4(ops, skb, state);
}
struct nft_af_info nft_af_ipv4 __read_mostly = {
diff --git a/net/ipv4/netfilter/nft_chain_nat_ipv4.c b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
index df547bf50078..bf5c30ae14e4 100644
--- a/net/ipv4/netfilter/nft_chain_nat_ipv4.c
+++ b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
@@ -28,51 +28,42 @@
static unsigned int nft_nat_do_chain(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct)
{
struct nft_pktinfo pkt;
- nft_set_pktinfo_ipv4(&pkt, ops, skb, in, out);
+ nft_set_pktinfo_ipv4(&pkt, ops, skb, state);
return nft_do_chain(&pkt, ops);
}
static unsigned int nft_nat_ipv4_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv4_fn(ops, skb, in, out, nft_nat_do_chain);
+ return nf_nat_ipv4_fn(ops, skb, state, nft_nat_do_chain);
}
static unsigned int nft_nat_ipv4_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv4_in(ops, skb, in, out, nft_nat_do_chain);
+ return nf_nat_ipv4_in(ops, skb, state, nft_nat_do_chain);
}
static unsigned int nft_nat_ipv4_out(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv4_out(ops, skb, in, out, nft_nat_do_chain);
+ return nf_nat_ipv4_out(ops, skb, state, nft_nat_do_chain);
}
static unsigned int nft_nat_ipv4_local_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv4_local_fn(ops, skb, in, out, nft_nat_do_chain);
+ return nf_nat_ipv4_local_fn(ops, skb, state, nft_nat_do_chain);
}
static const struct nf_chain_type nft_chain_nat_ipv4 = {
diff --git a/net/ipv4/netfilter/nft_chain_route_ipv4.c b/net/ipv4/netfilter/nft_chain_route_ipv4.c
index 125b66766c0a..e335b0afdaf3 100644
--- a/net/ipv4/netfilter/nft_chain_route_ipv4.c
+++ b/net/ipv4/netfilter/nft_chain_route_ipv4.c
@@ -23,9 +23,7 @@
static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
unsigned int ret;
struct nft_pktinfo pkt;
@@ -39,7 +37,7 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
ip_hdrlen(skb) < sizeof(struct iphdr))
return NF_ACCEPT;
- nft_set_pktinfo_ipv4(&pkt, ops, skb, in, out);
+ nft_set_pktinfo_ipv4(&pkt, ops, skb, state);
mark = skb->mark;
iph = ip_hdr(skb);
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 344e7cdfb8d4..a93f260cf24c 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -516,7 +516,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
ntohs(icmph->un.echo.sequence));
sk = ping_lookup(net, skb, ntohs(icmph->un.echo.id));
- if (sk == NULL) {
+ if (!sk) {
pr_debug("no socket, dropping\n");
return; /* No socket for error */
}
@@ -971,7 +971,7 @@ bool ping_rcv(struct sk_buff *skb)
skb_push(skb, skb->data - (u8 *)icmph);
sk = ping_lookup(net, skb, ntohs(icmph->un.echo.id));
- if (sk != NULL) {
+ if (sk) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
pr_debug("rcv on socket %p\n", sk);
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 56946f47d446..c0bb648fb2f9 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -293,7 +293,7 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
read_lock(&raw_v4_hashinfo.lock);
raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]);
- if (raw_sk != NULL) {
+ if (raw_sk) {
iph = (const struct iphdr *)skb->data;
net = dev_net(skb->dev);
@@ -363,7 +363,7 @@ static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4,
skb = sock_alloc_send_skb(sk,
length + hlen + tlen + 15,
flags & MSG_DONTWAIT, &err);
- if (skb == NULL)
+ if (!skb)
goto error;
skb_reserve(skb, hlen);
@@ -412,8 +412,8 @@ static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4,
icmp_out_count(net, ((struct icmphdr *)
skb_transport_header(skb))->type);
- err = NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_OUT, skb, NULL,
- rt->dst.dev, dst_output);
+ err = NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_OUT, sk, skb,
+ NULL, rt->dst.dev, dst_output_sk);
if (err > 0)
err = net_xmit_errno(err);
if (err)
@@ -872,7 +872,7 @@ static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
spin_lock_bh(&sk->sk_receive_queue.lock);
skb = skb_peek(&sk->sk_receive_queue);
- if (skb != NULL)
+ if (skb)
amount = skb->len;
spin_unlock_bh(&sk->sk_receive_queue.lock);
return put_user(amount, (int __user *)arg);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 652b92ebd7ba..a78540f28276 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1056,7 +1056,7 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
__build_flow_key(&fl4, sk, iph, 0, 0, 0, 0, 0);
rt = (struct rtable *)odst;
- if (odst->obsolete && odst->ops->check(odst, 0) == NULL) {
+ if (odst->obsolete && !odst->ops->check(odst, 0)) {
rt = ip_route_output_flow(sock_net(sk), &fl4, sk);
if (IS_ERR(rt))
goto out;
@@ -1450,7 +1450,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
/* Primary sanity checks. */
- if (in_dev == NULL)
+ if (!in_dev)
return -EINVAL;
if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) ||
@@ -1553,7 +1553,7 @@ static int __mkroute_input(struct sk_buff *skb,
/* get a working reference to the output device */
out_dev = __in_dev_get_rcu(FIB_RES_DEV(*res));
- if (out_dev == NULL) {
+ if (!out_dev) {
net_crit_ratelimited("Bug in ip_route_input_slow(). Please report.\n");
return -EINVAL;
}
@@ -1591,7 +1591,7 @@ static int __mkroute_input(struct sk_buff *skb,
fnhe = find_exception(&FIB_RES_NH(*res), daddr);
if (do_cache) {
- if (fnhe != NULL)
+ if (fnhe)
rth = rcu_dereference(fnhe->fnhe_rth_input);
else
rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
@@ -2054,7 +2054,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
ipv4_is_lbcast(fl4->daddr))) {
/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
dev_out = __ip_dev_find(net, fl4->saddr, false);
- if (dev_out == NULL)
+ if (!dev_out)
goto out;
/* Special hack: user can direct multicasts
@@ -2087,7 +2087,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
if (fl4->flowi4_oif) {
dev_out = dev_get_by_index_rcu(net, fl4->flowi4_oif);
rth = ERR_PTR(-ENODEV);
- if (dev_out == NULL)
+ if (!dev_out)
goto out;
/* RACE: Check return value of inet_select_addr instead. */
@@ -2299,7 +2299,7 @@ static int rt_fill_info(struct net *net, __be32 dst, __be32 src,
u32 metrics[RTAX_MAX];
nlh = nlmsg_put(skb, portid, seq, event, sizeof(*r), flags);
- if (nlh == NULL)
+ if (!nlh)
return -EMSGSIZE;
r = nlmsg_data(nlh);
@@ -2421,7 +2421,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
rtm = nlmsg_data(nlh);
skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
- if (skb == NULL) {
+ if (!skb) {
err = -ENOBUFS;
goto errout;
}
@@ -2452,7 +2452,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
struct net_device *dev;
dev = __dev_get_by_index(net, iif);
- if (dev == NULL) {
+ if (!dev) {
err = -ENODEV;
goto errout_free;
}
@@ -2651,7 +2651,7 @@ static __net_init int sysctl_route_net_init(struct net *net)
tbl = ipv4_route_flush_table;
if (!net_eq(net, &init_net)) {
tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
- if (tbl == NULL)
+ if (!tbl)
goto err_dup;
/* Don't export sysctls to unprivileged users */
@@ -2661,7 +2661,7 @@ static __net_init int sysctl_route_net_init(struct net *net)
tbl[0].extra1 = net;
net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
- if (net->ipv4.route_hdr == NULL)
+ if (!net->ipv4.route_hdr)
goto err_reg;
return 0;
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index fdf899163d44..c3852a7ff3c7 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -909,7 +909,7 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
int i;
table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
- if (table == NULL)
+ if (!table)
goto err_alloc;
/* Update the variables to point into the current struct net */
@@ -918,7 +918,7 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
}
net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
- if (net->ipv4.ipv4_hdr == NULL)
+ if (!net->ipv4.ipv4_hdr)
goto err_reg;
net->ipv4.sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL);
@@ -956,7 +956,7 @@ static __init int sysctl_ipv4_init(void)
struct ctl_table_header *hdr;
hdr = register_net_sysctl(&init_net, "net/ipv4", ipv4_table);
- if (hdr == NULL)
+ if (!hdr)
return -ENOMEM;
if (register_pernet_subsys(&ipv4_sysctl_ops)) {
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index dbd51cefaf02..094a6822c71d 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -496,7 +496,7 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
/* Connected or passive Fast Open socket? */
if (sk->sk_state != TCP_SYN_SENT &&
- (sk->sk_state != TCP_SYN_RECV || tp->fastopen_rsk != NULL)) {
+ (sk->sk_state != TCP_SYN_RECV || tp->fastopen_rsk)) {
int target = sock_rcvlowat(sk, 0, INT_MAX);
if (tp->urg_seq == tp->copied_seq &&
@@ -1028,7 +1028,7 @@ static inline int select_size(const struct sock *sk, bool sg)
void tcp_free_fastopen_req(struct tcp_sock *tp)
{
- if (tp->fastopen_req != NULL) {
+ if (tp->fastopen_req) {
kfree(tp->fastopen_req);
tp->fastopen_req = NULL;
}
@@ -1042,12 +1042,12 @@ static int tcp_sendmsg_fastopen(struct sock *sk, struct msghdr *msg,
if (!(sysctl_tcp_fastopen & TFO_CLIENT_ENABLE))
return -EOPNOTSUPP;
- if (tp->fastopen_req != NULL)
+ if (tp->fastopen_req)
return -EALREADY; /* Another Fast Open is in progress */
tp->fastopen_req = kzalloc(sizeof(struct tcp_fastopen_request),
sk->sk_allocation);
- if (unlikely(tp->fastopen_req == NULL))
+ if (unlikely(!tp->fastopen_req))
return -ENOBUFS;
tp->fastopen_req->data = msg;
tp->fastopen_req->size = size;
@@ -2138,7 +2138,7 @@ adjudge_to_death:
* aborted (e.g., closed with unread data) before 3WHS
* finishes.
*/
- if (req != NULL)
+ if (req)
reqsk_fastopen_remove(sk, req, false);
inet_csk_destroy_sock(sk);
}
@@ -2776,7 +2776,7 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
break;
case TCP_FASTOPEN:
- if (icsk->icsk_accept_queue.fastopenq != NULL)
+ if (icsk->icsk_accept_queue.fastopenq)
val = icsk->icsk_accept_queue.fastopenq->max_qlen;
else
val = 0;
@@ -2960,7 +2960,7 @@ void tcp_done(struct sock *sk)
tcp_set_state(sk, TCP_CLOSE);
tcp_clear_xmit_timers(sk);
- if (req != NULL)
+ if (req)
reqsk_fastopen_remove(sk, req, false);
sk->sk_shutdown = SHUTDOWN_MASK;
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index 86dc119a3815..79b34a0f4a4a 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -29,7 +29,7 @@ static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
r->idiag_rqueue = max_t(int, tp->rcv_nxt - tp->copied_seq, 0);
r->idiag_wqueue = tp->write_seq - tp->snd_una;
}
- if (info != NULL)
+ if (info)
tcp_get_info(sk, info);
}
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 2eb887ec0ce3..e3d87aca6be8 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -141,7 +141,7 @@ static bool tcp_fastopen_create_child(struct sock *sk,
req->sk = NULL;
child = inet_csk(sk)->icsk_af_ops->syn_recv_sock(sk, skb, req, NULL);
- if (child == NULL)
+ if (!child)
return false;
spin_lock(&queue->fastopenq->lock);
@@ -214,7 +214,7 @@ static bool tcp_fastopen_create_child(struct sock *sk,
sk->sk_data_ready(sk);
bh_unlock_sock(child);
sock_put(child);
- WARN_ON(req->sk == NULL);
+ WARN_ON(!req->sk);
return true;
}
@@ -233,7 +233,7 @@ static bool tcp_fastopen_queue_check(struct sock *sk)
* temporarily vs a server not supporting Fast Open at all.
*/
fastopenq = inet_csk(sk)->icsk_accept_queue.fastopenq;
- if (fastopenq == NULL || fastopenq->max_qlen == 0)
+ if (!fastopenq || fastopenq->max_qlen == 0)
return false;
if (fastopenq->qlen >= fastopenq->max_qlen) {
@@ -303,6 +303,7 @@ fastopen:
} else if (foc->len > 0) /* Client presents an invalid cookie */
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPFASTOPENPASSIVEFAIL);
+ valid_foc.exp = foc->exp;
*foc = valid_foc;
return false;
}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 18b80e8bc533..031cf72cd05c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -866,7 +866,7 @@ static void tcp_update_reordering(struct sock *sk, const int metric,
/* This must be called before lost_out is incremented */
static void tcp_verify_retransmit_hint(struct tcp_sock *tp, struct sk_buff *skb)
{
- if ((tp->retransmit_skb_hint == NULL) ||
+ if (!tp->retransmit_skb_hint ||
before(TCP_SKB_CB(skb)->seq,
TCP_SKB_CB(tp->retransmit_skb_hint)->seq))
tp->retransmit_skb_hint = skb;
@@ -1256,7 +1256,7 @@ static u8 tcp_sacktag_one(struct sock *sk,
fack_count += pcount;
/* Lost marker hint past SACKed? Tweak RFC3517 cnt */
- if (!tcp_is_fack(tp) && (tp->lost_skb_hint != NULL) &&
+ if (!tcp_is_fack(tp) && tp->lost_skb_hint &&
before(start_seq, TCP_SKB_CB(tp->lost_skb_hint)->seq))
tp->lost_cnt_hint += pcount;
@@ -1535,7 +1535,7 @@ static struct sk_buff *tcp_sacktag_walk(struct sk_buff *skb, struct sock *sk,
if (!before(TCP_SKB_CB(skb)->seq, end_seq))
break;
- if ((next_dup != NULL) &&
+ if (next_dup &&
before(TCP_SKB_CB(skb)->seq, next_dup->end_seq)) {
in_sack = tcp_match_skb_to_sack(sk, skb,
next_dup->start_seq,
@@ -1551,7 +1551,7 @@ static struct sk_buff *tcp_sacktag_walk(struct sk_buff *skb, struct sock *sk,
if (in_sack <= 0) {
tmp = tcp_shift_skb_data(sk, skb, state,
start_seq, end_seq, dup_sack);
- if (tmp != NULL) {
+ if (tmp) {
if (tmp != skb) {
skb = tmp;
continue;
@@ -1614,7 +1614,7 @@ static struct sk_buff *tcp_maybe_skipping_dsack(struct sk_buff *skb,
struct tcp_sacktag_state *state,
u32 skip_to_seq)
{
- if (next_dup == NULL)
+ if (!next_dup)
return skb;
if (before(next_dup->start_seq, skip_to_seq)) {
@@ -1783,7 +1783,7 @@ tcp_sacktag_write_queue(struct sock *sk, const struct sk_buff *ack_skb,
if (tcp_highest_sack_seq(tp) == cache->end_seq) {
/* ...but better entrypoint exists! */
skb = tcp_highest_sack(sk);
- if (skb == NULL)
+ if (!skb)
break;
state.fack_count = tp->fackets_out;
cache++;
@@ -1798,7 +1798,7 @@ tcp_sacktag_write_queue(struct sock *sk, const struct sk_buff *ack_skb,
if (!before(start_seq, tcp_highest_sack_seq(tp))) {
skb = tcp_highest_sack(sk);
- if (skb == NULL)
+ if (!skb)
break;
state.fack_count = tp->fackets_out;
}
@@ -3105,10 +3105,11 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
if (!first_ackt.v64)
first_ackt = last_ackt;
- if (!(sacked & TCPCB_SACKED_ACKED))
+ if (!(sacked & TCPCB_SACKED_ACKED)) {
reord = min(pkts_acked, reord);
- if (!after(scb->end_seq, tp->high_seq))
- flag |= FLAG_ORIG_SACK_ACKED;
+ if (!after(scb->end_seq, tp->high_seq))
+ flag |= FLAG_ORIG_SACK_ACKED;
+ }
}
if (sacked & TCPCB_SACKED_ACKED)
@@ -3602,6 +3603,23 @@ old_ack:
return 0;
}
+static void tcp_parse_fastopen_option(int len, const unsigned char *cookie,
+ bool syn, struct tcp_fastopen_cookie *foc,
+ bool exp_opt)
+{
+ /* Valid only in SYN or SYN-ACK with an even length. */
+ if (!foc || !syn || len < 0 || (len & 1))
+ return;
+
+ if (len >= TCP_FASTOPEN_COOKIE_MIN &&
+ len <= TCP_FASTOPEN_COOKIE_MAX)
+ memcpy(foc->val, cookie, len);
+ else if (len != 0)
+ len = -1;
+ foc->len = len;
+ foc->exp = exp_opt;
+}
+
/* Look for tcp options. Normally only called on SYN and SYNACK packets.
* But, this can also be called on packets in the established flow when
* the fast version below fails.
@@ -3691,21 +3709,22 @@ void tcp_parse_options(const struct sk_buff *skb,
*/
break;
#endif
+ case TCPOPT_FASTOPEN:
+ tcp_parse_fastopen_option(
+ opsize - TCPOLEN_FASTOPEN_BASE,
+ ptr, th->syn, foc, false);
+ break;
+
case TCPOPT_EXP:
/* Fast Open option shares code 254 using a
- * 16 bits magic number. It's valid only in
- * SYN or SYN-ACK with an even size.
+ * 16 bits magic number.
*/
- if (opsize < TCPOLEN_EXP_FASTOPEN_BASE ||
- get_unaligned_be16(ptr) != TCPOPT_FASTOPEN_MAGIC ||
- foc == NULL || !th->syn || (opsize & 1))
- break;
- foc->len = opsize - TCPOLEN_EXP_FASTOPEN_BASE;
- if (foc->len >= TCP_FASTOPEN_COOKIE_MIN &&
- foc->len <= TCP_FASTOPEN_COOKIE_MAX)
- memcpy(foc->val, ptr + 2, foc->len);
- else if (foc->len != 0)
- foc->len = -1;
+ if (opsize >= TCPOLEN_EXP_FASTOPEN_BASE &&
+ get_unaligned_be16(ptr) ==
+ TCPOPT_FASTOPEN_MAGIC)
+ tcp_parse_fastopen_option(opsize -
+ TCPOLEN_EXP_FASTOPEN_BASE,
+ ptr + 2, th->syn, foc, true);
break;
}
@@ -4669,7 +4688,7 @@ static void tcp_collapse_ofo_queue(struct sock *sk)
struct sk_buff *head;
u32 start, end;
- if (skb == NULL)
+ if (!skb)
return;
start = TCP_SKB_CB(skb)->seq;
@@ -5124,7 +5143,7 @@ void tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
{
struct tcp_sock *tp = tcp_sk(sk);
- if (unlikely(sk->sk_rx_dst == NULL))
+ if (unlikely(!sk->sk_rx_dst))
inet_csk(sk)->icsk_af_ops->sk_rx_dst_set(sk, skb);
/*
* Header prediction.
@@ -5321,7 +5340,7 @@ void tcp_finish_connect(struct sock *sk, struct sk_buff *skb)
tcp_set_state(sk, TCP_ESTABLISHED);
- if (skb != NULL) {
+ if (skb) {
icsk->icsk_af_ops->sk_rx_dst_set(sk, skb);
security_inet_conn_established(sk, skb);
}
@@ -5359,8 +5378,8 @@ static bool tcp_rcv_fastopen_synack(struct sock *sk, struct sk_buff *synack,
{
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *data = tp->syn_data ? tcp_write_queue_head(sk) : NULL;
- u16 mss = tp->rx_opt.mss_clamp;
- bool syn_drop;
+ u16 mss = tp->rx_opt.mss_clamp, try_exp = 0;
+ bool syn_drop = false;
if (mss == tp->rx_opt.user_mss) {
struct tcp_options_received opt;
@@ -5372,16 +5391,25 @@ static bool tcp_rcv_fastopen_synack(struct sock *sk, struct sk_buff *synack,
mss = opt.mss_clamp;
}
- if (!tp->syn_fastopen) /* Ignore an unsolicited cookie */
+ if (!tp->syn_fastopen) {
+ /* Ignore an unsolicited cookie */
cookie->len = -1;
+ } else if (tp->total_retrans) {
+ /* SYN timed out and the SYN-ACK neither has a cookie nor
+ * acknowledges data. Presumably the remote received only
+ * the retransmitted (regular) SYNs: either the original
+ * SYN-data or the corresponding SYN-ACK was dropped.
+ */
+ syn_drop = (cookie->len < 0 && data);
+ } else if (cookie->len < 0 && !tp->syn_data) {
+ /* We requested a cookie but didn't get it. If we did not use
+ * the (old) exp opt format then try so next time (try_exp=1).
+ * Otherwise we go back to use the RFC7413 opt (try_exp=2).
+ */
+ try_exp = tp->syn_fastopen_exp ? 2 : 1;
+ }
- /* The SYN-ACK neither has cookie nor acknowledges the data. Presumably
- * the remote receives only the retransmitted (regular) SYNs: either
- * the original SYN-data or the corresponding SYN-ACK is lost.
- */
- syn_drop = (cookie->len <= 0 && data && tp->total_retrans);
-
- tcp_fastopen_cache_set(sk, mss, cookie, syn_drop);
+ tcp_fastopen_cache_set(sk, mss, cookie, syn_drop, try_exp);
if (data) { /* Retransmit unacked data in SYN */
tcp_for_write_queue_from(data, sk) {
@@ -5690,11 +5718,11 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
}
req = tp->fastopen_rsk;
- if (req != NULL) {
+ if (req) {
WARN_ON_ONCE(sk->sk_state != TCP_SYN_RECV &&
sk->sk_state != TCP_FIN_WAIT1);
- if (tcp_check_req(sk, skb, req, true) == NULL)
+ if (!tcp_check_req(sk, skb, req, true))
goto discard;
}
@@ -5780,7 +5808,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
* ACK we have received, this would have acknowledged
* our SYNACK so stop the SYNACK timer.
*/
- if (req != NULL) {
+ if (req) {
/* Return RST if ack_seq is invalid.
* Note that RFC793 only says to generate a
* DUPACK for it but for TCP Fast Open it seems
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 5aababa20a21..560f9571f7c4 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -122,7 +122,7 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
and use initial timestamp retrieved from peer table.
*/
if (tcptw->tw_ts_recent_stamp &&
- (twp == NULL || (sysctl_tcp_tw_reuse &&
+ (!twp || (sysctl_tcp_tw_reuse &&
get_seconds() - tcptw->tw_ts_recent_stamp > 1))) {
tp->write_seq = tcptw->tw_snd_nxt + 65535 + 2;
if (tp->write_seq == 0)
@@ -494,7 +494,7 @@ void tcp_v4_err(struct sk_buff *icmp_skb, u32 info)
/* Only in fast or simultaneous open. If a fast open socket is
* is already accepted it is treated as a connected one below.
*/
- if (fastopen && fastopen->sk == NULL)
+ if (fastopen && !fastopen->sk)
break;
if (!sock_owned_by_user(sk)) {
@@ -1305,7 +1305,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
/* Copy over the MD5 key from the original socket */
key = tcp_md5_do_lookup(sk, (union tcp_md5_addr *)&newinet->inet_daddr,
AF_INET);
- if (key != NULL) {
+ if (key) {
/*
* We're using one, so create a matching key
* on the newsk structure. If we fail to get
@@ -1390,7 +1390,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
sk_mark_napi_id(sk, skb);
if (dst) {
if (inet_sk(sk)->rx_dst_ifindex != skb->skb_iif ||
- dst->ops->check(dst, 0) == NULL) {
+ !dst->ops->check(dst, 0)) {
dst_release(dst);
sk->sk_rx_dst = NULL;
}
@@ -1469,7 +1469,7 @@ void tcp_v4_early_demux(struct sk_buff *skb)
skb->sk = sk;
skb->destructor = sock_edemux;
if (sk_fullsock(sk)) {
- struct dst_entry *dst = sk->sk_rx_dst;
+ struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
if (dst)
dst = dst_check(dst, 0);
@@ -1797,7 +1797,7 @@ void tcp_v4_destroy_sock(struct sock *sk)
if (inet_csk(sk)->icsk_bind_hash)
inet_put_port(sk);
- BUG_ON(tp->fastopen_rsk != NULL);
+ BUG_ON(tp->fastopen_rsk);
/* If socket is aborted during connect operation */
tcp_free_fastopen_req(tp);
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 71ec14c87579..a51d63a43e33 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -28,7 +28,8 @@ static struct tcp_metrics_block *__tcp_get_metrics(const struct inetpeer_addr *s
struct tcp_fastopen_metrics {
u16 mss;
- u16 syn_loss:10; /* Recurring Fast Open SYN losses */
+ u16 syn_loss:10, /* Recurring Fast Open SYN losses */
+ try_exp:2; /* Request w/ exp. option (once) */
unsigned long last_syn_loss; /* Last Fast Open SYN loss */
struct tcp_fastopen_cookie cookie;
};
@@ -131,6 +132,8 @@ static void tcpm_suck_dst(struct tcp_metrics_block *tm,
if (fastopen_clear) {
tm->tcpm_fastopen.mss = 0;
tm->tcpm_fastopen.syn_loss = 0;
+ tm->tcpm_fastopen.try_exp = 0;
+ tm->tcpm_fastopen.cookie.exp = false;
tm->tcpm_fastopen.cookie.len = 0;
}
}
@@ -505,7 +508,7 @@ void tcp_init_metrics(struct sock *sk)
struct tcp_metrics_block *tm;
u32 val, crtt = 0; /* cached RTT scaled by 8 */
- if (dst == NULL)
+ if (!dst)
goto reset;
dst_confirm(dst);
@@ -713,6 +716,8 @@ void tcp_fastopen_cache_get(struct sock *sk, u16 *mss,
if (tfom->mss)
*mss = tfom->mss;
*cookie = tfom->cookie;
+ if (cookie->len <= 0 && tfom->try_exp == 1)
+ cookie->exp = true;
*syn_loss = tfom->syn_loss;
*last_syn_loss = *syn_loss ? tfom->last_syn_loss : 0;
} while (read_seqretry(&fastopen_seqlock, seq));
@@ -721,7 +726,8 @@ void tcp_fastopen_cache_get(struct sock *sk, u16 *mss,
}
void tcp_fastopen_cache_set(struct sock *sk, u16 mss,
- struct tcp_fastopen_cookie *cookie, bool syn_lost)
+ struct tcp_fastopen_cookie *cookie, bool syn_lost,
+ u16 try_exp)
{
struct dst_entry *dst = __sk_dst_get(sk);
struct tcp_metrics_block *tm;
@@ -738,6 +744,9 @@ void tcp_fastopen_cache_set(struct sock *sk, u16 mss,
tfom->mss = mss;
if (cookie && cookie->len > 0)
tfom->cookie = *cookie;
+ else if (try_exp > tfom->try_exp &&
+ tfom->cookie.len <= 0 && !tfom->cookie.exp)
+ tfom->try_exp = try_exp;
if (syn_lost) {
++tfom->syn_loss;
tfom->last_syn_loss = jiffies;
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 274e96fb369b..d7003911c894 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -294,7 +294,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
if (tcp_death_row.tw_count < tcp_death_row.sysctl_max_tw_buckets)
tw = inet_twsk_alloc(sk, state);
- if (tw != NULL) {
+ if (tw) {
struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw);
const int rto = (icsk->icsk_rto << 2) - (icsk->icsk_rto >> 1);
struct inet_sock *inet = inet_sk(sk);
@@ -332,7 +332,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
struct tcp_md5sig_key *key;
tcptw->tw_md5_key = NULL;
key = tp->af_specific->md5_lookup(sk, sk);
- if (key != NULL) {
+ if (key) {
tcptw->tw_md5_key = kmemdup(key, sizeof(*key), GFP_ATOMIC);
if (tcptw->tw_md5_key && !tcp_alloc_md5sig_pool())
BUG();
@@ -454,7 +454,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
{
struct sock *newsk = inet_csk_clone_lock(sk, req, GFP_ATOMIC);
- if (newsk != NULL) {
+ if (newsk) {
const struct inet_request_sock *ireq = inet_rsk(req);
struct tcp_request_sock *treq = tcp_rsk(req);
struct inet_connection_sock *newicsk = inet_csk(newsk);
@@ -763,7 +763,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
* socket is created, wait for troubles.
*/
child = inet_csk(sk)->icsk_af_ops->syn_recv_sock(sk, skb, req, NULL);
- if (child == NULL)
+ if (!child)
goto listen_overflow;
inet_csk_reqsk_queue_unlink(sk, req);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 2e69b8d16e68..e662d85d1635 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -518,17 +518,26 @@ static void tcp_options_write(__be32 *ptr, struct tcp_sock *tp,
if (unlikely(OPTION_FAST_OPEN_COOKIE & options)) {
struct tcp_fastopen_cookie *foc = opts->fastopen_cookie;
+ u8 *p = (u8 *)ptr;
+ u32 len; /* Fast Open option length */
+
+ if (foc->exp) {
+ len = TCPOLEN_EXP_FASTOPEN_BASE + foc->len;
+ *ptr = htonl((TCPOPT_EXP << 24) | (len << 16) |
+ TCPOPT_FASTOPEN_MAGIC);
+ p += TCPOLEN_EXP_FASTOPEN_BASE;
+ } else {
+ len = TCPOLEN_FASTOPEN_BASE + foc->len;
+ *p++ = TCPOPT_FASTOPEN;
+ *p++ = len;
+ }
- *ptr++ = htonl((TCPOPT_EXP << 24) |
- ((TCPOLEN_EXP_FASTOPEN_BASE + foc->len) << 16) |
- TCPOPT_FASTOPEN_MAGIC);
-
- memcpy(ptr, foc->val, foc->len);
- if ((foc->len & 3) == 2) {
- u8 *align = ((u8 *)ptr) + foc->len;
- align[0] = align[1] = TCPOPT_NOP;
+ memcpy(p, foc->val, foc->len);
+ if ((len & 3) == 2) {
+ p[foc->len] = TCPOPT_NOP;
+ p[foc->len + 1] = TCPOPT_NOP;
}
- ptr += (foc->len + 3) >> 2;
+ ptr += (len + 3) >> 2;
}
}
@@ -565,7 +574,7 @@ static unsigned int tcp_syn_options(struct sock *sk, struct sk_buff *skb,
opts->mss = tcp_advertise_mss(sk);
remaining -= TCPOLEN_MSS_ALIGNED;
- if (likely(sysctl_tcp_timestamps && *md5 == NULL)) {
+ if (likely(sysctl_tcp_timestamps && !*md5)) {
opts->options |= OPTION_TS;
opts->tsval = tcp_skb_timestamp(skb) + tp->tsoffset;
opts->tsecr = tp->rx_opt.ts_recent;
@@ -583,13 +592,17 @@ static unsigned int tcp_syn_options(struct sock *sk, struct sk_buff *skb,
}
if (fastopen && fastopen->cookie.len >= 0) {
- u32 need = TCPOLEN_EXP_FASTOPEN_BASE + fastopen->cookie.len;
+ u32 need = fastopen->cookie.len;
+
+ need += fastopen->cookie.exp ? TCPOLEN_EXP_FASTOPEN_BASE :
+ TCPOLEN_FASTOPEN_BASE;
need = (need + 3) & ~3U; /* Align to 32 bits */
if (remaining >= need) {
opts->options |= OPTION_FAST_OPEN_COOKIE;
opts->fastopen_cookie = &fastopen->cookie;
remaining -= need;
tp->syn_fastopen = 1;
+ tp->syn_fastopen_exp = fastopen->cookie.exp ? 1 : 0;
}
}
@@ -642,7 +655,10 @@ static unsigned int tcp_synack_options(struct sock *sk,
remaining -= TCPOLEN_SACKPERM_ALIGNED;
}
if (foc != NULL && foc->len >= 0) {
- u32 need = TCPOLEN_EXP_FASTOPEN_BASE + foc->len;
+ u32 need = foc->len;
+
+ need += foc->exp ? TCPOLEN_EXP_FASTOPEN_BASE :
+ TCPOLEN_FASTOPEN_BASE;
need = (need + 3) & ~3U; /* Align to 32 bits */
if (remaining >= need) {
opts->options |= OPTION_FAST_OPEN_COOKIE;
@@ -1148,7 +1164,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len,
/* Get a new skb... force flag on. */
buff = sk_stream_alloc_skb(sk, nsize, gfp);
- if (buff == NULL)
+ if (!buff)
return -ENOMEM; /* We'll just try again later. */
sk->sk_wmem_queued += buff->truesize;
@@ -1707,7 +1723,7 @@ static int tso_fragment(struct sock *sk, struct sk_buff *skb, unsigned int len,
return tcp_fragment(sk, skb, len, mss_now, gfp);
buff = sk_stream_alloc_skb(sk, 0, gfp);
- if (unlikely(buff == NULL))
+ if (unlikely(!buff))
return -ENOMEM;
sk->sk_wmem_queued += buff->truesize;
@@ -1925,7 +1941,8 @@ static int tcp_mtu_probe(struct sock *sk)
}
/* We're allowed to probe. Build it now. */
- if ((nskb = sk_stream_alloc_skb(sk, probe_size, GFP_ATOMIC)) == NULL)
+ nskb = sk_stream_alloc_skb(sk, probe_size, GFP_ATOMIC);
+ if (!nskb)
return -1;
sk->sk_wmem_queued += nskb->truesize;
sk_mem_charge(sk, nskb->truesize);
@@ -2223,7 +2240,7 @@ void tcp_send_loss_probe(struct sock *sk)
int mss = tcp_current_mss(sk);
int err = -1;
- if (tcp_send_head(sk) != NULL) {
+ if (tcp_send_head(sk)) {
err = tcp_write_xmit(sk, mss, TCP_NAGLE_OFF, 2, GFP_ATOMIC);
goto rearm_timer;
}
@@ -2733,7 +2750,7 @@ void tcp_xmit_retransmit_queue(struct sock *sk)
if (skb == tcp_send_head(sk))
break;
/* we could do better than to assign each time */
- if (hole == NULL)
+ if (!hole)
tp->retransmit_skb_hint = skb;
/* Assume this retransmit will generate
@@ -2757,7 +2774,7 @@ begin_fwd:
if (!tcp_can_forward_retransmit(sk))
break;
/* Backtrack if necessary to non-L'ed skb */
- if (hole != NULL) {
+ if (hole) {
skb = hole;
hole = NULL;
}
@@ -2765,7 +2782,7 @@ begin_fwd:
goto begin_fwd;
} else if (!(sacked & TCPCB_LOST)) {
- if (hole == NULL && !(sacked & (TCPCB_SACKED_RETRANS|TCPCB_SACKED_ACKED)))
+ if (!hole && !(sacked & (TCPCB_SACKED_RETRANS|TCPCB_SACKED_ACKED)))
hole = skb;
continue;
@@ -2810,7 +2827,7 @@ void tcp_send_fin(struct sock *sk)
*/
mss_now = tcp_current_mss(sk);
- if (tcp_send_head(sk) != NULL) {
+ if (tcp_send_head(sk)) {
TCP_SKB_CB(skb)->tcp_flags |= TCPHDR_FIN;
TCP_SKB_CB(skb)->end_seq++;
tp->write_seq++;
@@ -2868,14 +2885,14 @@ int tcp_send_synack(struct sock *sk)
struct sk_buff *skb;
skb = tcp_write_queue_head(sk);
- if (skb == NULL || !(TCP_SKB_CB(skb)->tcp_flags & TCPHDR_SYN)) {
+ if (!skb || !(TCP_SKB_CB(skb)->tcp_flags & TCPHDR_SYN)) {
pr_debug("%s: wrong queue state\n", __func__);
return -EFAULT;
}
if (!(TCP_SKB_CB(skb)->tcp_flags & TCPHDR_ACK)) {
if (skb_cloned(skb)) {
struct sk_buff *nskb = skb_copy(skb, GFP_ATOMIC);
- if (nskb == NULL)
+ if (!nskb)
return -ENOMEM;
tcp_unlink_write_queue(skb, sk);
__skb_header_release(nskb);
@@ -3014,7 +3031,7 @@ static void tcp_connect_init(struct sock *sk)
(sysctl_tcp_timestamps ? TCPOLEN_TSTAMP_ALIGNED : 0);
#ifdef CONFIG_TCP_MD5SIG
- if (tp->af_specific->md5_lookup(sk, sk) != NULL)
+ if (tp->af_specific->md5_lookup(sk, sk))
tp->tcp_header_len += TCPOLEN_MD5SIG_ALIGNED;
#endif
@@ -3300,7 +3317,7 @@ void tcp_send_ack(struct sock *sk)
* sock.
*/
buff = alloc_skb(MAX_TCP_HEADER, sk_gfp_atomic(sk, GFP_ATOMIC));
- if (buff == NULL) {
+ if (!buff) {
inet_csk_schedule_ack(sk);
inet_csk(sk)->icsk_ack.ato = TCP_ATO_MIN;
inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,
@@ -3344,7 +3361,7 @@ static int tcp_xmit_probe_skb(struct sock *sk, int urgent)
/* We don't queue it, tcp_transmit_skb() sets ownership. */
skb = alloc_skb(MAX_TCP_HEADER, sk_gfp_atomic(sk, GFP_ATOMIC));
- if (skb == NULL)
+ if (!skb)
return -1;
/* Reserve space for headers and set control bits. */
@@ -3375,8 +3392,8 @@ int tcp_write_wakeup(struct sock *sk)
if (sk->sk_state == TCP_CLOSE)
return -1;
- if ((skb = tcp_send_head(sk)) != NULL &&
- before(TCP_SKB_CB(skb)->seq, tcp_wnd_end(tp))) {
+ skb = tcp_send_head(sk);
+ if (skb && before(TCP_SKB_CB(skb)->seq, tcp_wnd_end(tp))) {
int err;
unsigned int mss = tcp_current_mss(sk);
unsigned int seg_size = tcp_wnd_end(tp) - TCP_SKB_CB(skb)->seq;
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 2568fd282873..8c65dc147d8b 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -167,7 +167,7 @@ static int tcp_write_timeout(struct sock *sk)
if (icsk->icsk_retransmits) {
dst_negative_advice(sk);
if (tp->syn_fastopen || tp->syn_data)
- tcp_fastopen_cache_set(sk, 0, NULL, true);
+ tcp_fastopen_cache_set(sk, 0, NULL, true, 0);
if (tp->syn_data)
NET_INC_STATS_BH(sock_net(sk),
LINUX_MIB_TCPFASTOPENACTIVEFAIL);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 294af16633af..2162fc6ce1c1 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -633,7 +633,7 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct udp_table *udptable)
sk = __udp4_lib_lookup(net, iph->daddr, uh->dest,
iph->saddr, uh->source, skb->dev->ifindex, udptable);
- if (sk == NULL) {
+ if (!sk) {
ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
return; /* No socket for error */
}
@@ -1011,7 +1011,7 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
if (connected)
rt = (struct rtable *)sk_dst_check(sk, 0);
- if (rt == NULL) {
+ if (!rt) {
struct net *net = sock_net(sk);
fl4 = &fl4_stack;
@@ -1522,7 +1522,7 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
/* if we're overly short, let UDP handle it */
encap_rcv = ACCESS_ONCE(up->encap_rcv);
- if (skb->len > sizeof(struct udphdr) && encap_rcv != NULL) {
+ if (skb->len > sizeof(struct udphdr) && encap_rcv) {
int ret;
/* Verify checksum before giving to encap */
@@ -1619,7 +1619,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
for (i = 0; i < count; i++) {
sk = stack[i];
- if (likely(skb1 == NULL))
+ if (likely(!skb1))
skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
if (!skb1) {
@@ -1802,7 +1802,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
saddr, daddr, udptable, proto);
sk = __udp4_lib_lookup_skb(skb, uh->source, uh->dest, udptable);
- if (sk != NULL) {
+ if (sk) {
int ret;
if (inet_get_convert_csum(sk) && uh->check && !IS_UDPLITE(sk))
diff --git a/net/ipv4/udp_diag.c b/net/ipv4/udp_diag.c
index 2dbfc1f1f7b3..b763c39ae1d7 100644
--- a/net/ipv4/udp_diag.c
+++ b/net/ipv4/udp_diag.c
@@ -58,7 +58,7 @@ static int udp_dump_one(struct udp_table *tbl, struct sk_buff *in_skb,
goto out_nosk;
err = -ENOENT;
- if (sk == NULL)
+ if (!sk)
goto out_nosk;
err = sock_diag_check_cookie(sk, req->id.idiag_cookie);
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 4915d8284a86..f9386160cbee 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -285,7 +285,7 @@ void udp_del_offload(struct udp_offload *uo)
pr_warn("udp_del_offload: didn't find offload for port %d\n", ntohs(uo->port));
unlock:
spin_unlock(&udp_offload_lock);
- if (uo_priv != NULL)
+ if (uo_priv)
call_rcu(&uo_priv->rcu, udp_offload_free_routine);
}
EXPORT_SYMBOL(udp_del_offload);
@@ -394,7 +394,7 @@ int udp_gro_complete(struct sk_buff *skb, int nhoff)
break;
}
- if (uo_priv != NULL) {
+ if (uo_priv) {
NAPI_GRO_CB(skb)->proto = uo_priv->offload->ipproto;
err = uo_priv->offload->callbacks.gro_complete(skb,
nhoff + sizeof(struct udphdr),
diff --git a/net/ipv4/udp_tunnel.c b/net/ipv4/udp_tunnel.c
index c83b35485056..6bb98cc193c9 100644
--- a/net/ipv4/udp_tunnel.c
+++ b/net/ipv4/udp_tunnel.c
@@ -75,7 +75,7 @@ void setup_udp_tunnel_sock(struct net *net, struct socket *sock,
}
EXPORT_SYMBOL_GPL(setup_udp_tunnel_sock);
-int udp_tunnel_xmit_skb(struct rtable *rt, struct sk_buff *skb,
+int udp_tunnel_xmit_skb(struct rtable *rt, struct sock *sk, struct sk_buff *skb,
__be32 src, __be32 dst, __u8 tos, __u8 ttl,
__be16 df, __be16 src_port, __be16 dst_port,
bool xnet, bool nocheck)
@@ -92,7 +92,7 @@ int udp_tunnel_xmit_skb(struct rtable *rt, struct sk_buff *skb,
udp_set_csum(nocheck, skb, src, dst, skb->len);
- return iptunnel_xmit(skb->sk, rt, skb, src, dst, IPPROTO_UDP,
+ return iptunnel_xmit(sk, rt, skb, src, dst, IPPROTO_UDP,
tos, ttl, df, xnet);
}
EXPORT_SYMBOL_GPL(udp_tunnel_xmit_skb);
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index aac6197b7a71..60b032f58ccc 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c
@@ -22,9 +22,9 @@ int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb)
return xfrm4_extract_header(skb);
}
-static inline int xfrm4_rcv_encap_finish(struct sk_buff *skb)
+static inline int xfrm4_rcv_encap_finish(struct sock *sk, struct sk_buff *skb)
{
- if (skb_dst(skb) == NULL) {
+ if (!skb_dst(skb)) {
const struct iphdr *iph = ip_hdr(skb);
if (ip_route_input_noref(skb, iph->daddr, iph->saddr,
@@ -52,7 +52,8 @@ int xfrm4_transport_finish(struct sk_buff *skb, int async)
iph->tot_len = htons(skb->len);
ip_send_check(iph);
- NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, skb, skb->dev, NULL,
+ NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, NULL, skb,
+ skb->dev, NULL,
xfrm4_rcv_encap_finish);
return 0;
}
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index dab73813cb92..2878dbfffeb7 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -69,7 +69,7 @@ int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
}
EXPORT_SYMBOL(xfrm4_prepare_output);
-int xfrm4_output_finish(struct sk_buff *skb)
+int xfrm4_output_finish(struct sock *sk, struct sk_buff *skb)
{
memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
@@ -77,26 +77,26 @@ int xfrm4_output_finish(struct sk_buff *skb)
IPCB(skb)->flags |= IPSKB_XFRM_TRANSFORMED;
#endif
- return xfrm_output(skb);
+ return xfrm_output(sk, skb);
}
-static int __xfrm4_output(struct sk_buff *skb)
+static int __xfrm4_output(struct sock *sk, struct sk_buff *skb)
{
struct xfrm_state *x = skb_dst(skb)->xfrm;
#ifdef CONFIG_NETFILTER
if (!x) {
IPCB(skb)->flags |= IPSKB_REROUTED;
- return dst_output(skb);
+ return dst_output_sk(sk, skb);
}
#endif
- return x->outer_mode->afinfo->output_finish(skb);
+ return x->outer_mode->afinfo->output_finish(sk, skb);
}
int xfrm4_output(struct sock *sk, struct sk_buff *skb)
{
- return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, skb,
+ return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb,
NULL, skb_dst(skb)->dev, __xfrm4_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index c224c856247b..bff69746e05f 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -298,7 +298,7 @@ static void __net_exit xfrm4_net_exit(struct net *net)
{
struct ctl_table *table;
- if (net->ipv4.xfrm4_hdr == NULL)
+ if (!net->ipv4.xfrm4_hdr)
return;
table = net->ipv4.xfrm4_hdr->ctl_table_arg;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 5c9e94cb1b2c..37b70e82bff8 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4858,8 +4858,8 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
(dev->addr_len &&
nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
- (dev->ifindex != dev->iflink &&
- nla_put_u32(skb, IFLA_LINK, dev->iflink)))
+ (dev->ifindex != dev_get_iflink(dev) &&
+ nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
goto nla_put_failure;
protoinfo = nla_nest_start(skb, IFLA_PROTINFO);
if (!protoinfo)
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index 61fb184b818d..2367a16eae58 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -315,7 +315,9 @@ out_fib6_rules_ops:
static void __net_exit fib6_rules_net_exit(struct net *net)
{
+ rtnl_lock();
fib_rules_unregister(net->ipv6.fib6_rules_ops);
+ rtnl_unlock();
}
static struct pernet_operations fib6_rules_net_ops = {
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 0f4e73da14e4..b5e6cc1d4a73 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -760,7 +760,7 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb,
skb_set_inner_protocol(skb, protocol);
- ip6tunnel_xmit(skb, dev);
+ ip6tunnel_xmit(NULL, skb, dev);
if (ndst)
ip6_tnl_dst_store(tunnel, ndst);
return 0;
@@ -1216,6 +1216,7 @@ static const struct net_device_ops ip6gre_netdev_ops = {
.ndo_do_ioctl = ip6gre_tunnel_ioctl,
.ndo_change_mtu = ip6gre_tunnel_change_mtu,
.ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip6_tnl_get_iflink,
};
static void ip6gre_dev_free(struct net_device *dev)
@@ -1238,7 +1239,6 @@ static void ip6gre_tunnel_setup(struct net_device *dev)
if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
dev->mtu -= 8;
dev->flags |= IFF_NOARP;
- dev->iflink = 0;
dev->addr_len = sizeof(struct in6_addr);
netif_keep_dst(dev);
}
@@ -1270,8 +1270,6 @@ static int ip6gre_tunnel_init(struct net_device *dev)
u64_stats_init(&ip6gre_tunnel_stats->syncp);
}
- dev->iflink = tunnel->parms.link;
-
return 0;
}
@@ -1480,8 +1478,6 @@ static int ip6gre_tap_init(struct net_device *dev)
if (!dev->tstats)
return -ENOMEM;
- dev->iflink = tunnel->parms.link;
-
return 0;
}
@@ -1493,6 +1489,7 @@ static const struct net_device_ops ip6gre_tap_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = ip6gre_tunnel_change_mtu,
.ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip6_tnl_get_iflink,
};
static void ip6gre_tap_setup(struct net_device *dev)
@@ -1503,7 +1500,6 @@ static void ip6gre_tap_setup(struct net_device *dev)
dev->netdev_ops = &ip6gre_tap_netdev_ops;
dev->destructor = ip6gre_dev_free;
- dev->iflink = 0;
dev->features |= NETIF_F_NETNS_LOCAL;
}
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index fb97f7f8d4ed..f2e464eba5ef 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -46,8 +46,7 @@
#include <net/xfrm.h>
#include <net/inet_ecn.h>
-
-int ip6_rcv_finish(struct sk_buff *skb)
+int ip6_rcv_finish(struct sock *sk, struct sk_buff *skb)
{
if (sysctl_ip_early_demux && !skb_dst(skb) && skb->sk == NULL) {
const struct inet6_protocol *ipprot;
@@ -183,7 +182,8 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
/* Must drop socket now because of tproxy. */
skb_orphan(skb);
- return NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, skb, dev, NULL,
+ return NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, NULL, skb,
+ dev, NULL,
ip6_rcv_finish);
err:
IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INHDRERRORS);
@@ -198,7 +198,7 @@ drop:
*/
-static int ip6_input_finish(struct sk_buff *skb)
+static int ip6_input_finish(struct sock *sk, struct sk_buff *skb)
{
struct net *net = dev_net(skb_dst(skb)->dev);
const struct inet6_protocol *ipprot;
@@ -277,7 +277,8 @@ discard:
int ip6_input(struct sk_buff *skb)
{
- return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_IN, skb, skb->dev, NULL,
+ return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_IN, NULL, skb,
+ skb->dev, NULL,
ip6_input_finish);
}
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 84c58da10f5c..7fde1f265c90 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -56,7 +56,7 @@
#include <net/checksum.h>
#include <linux/mroute6.h>
-static int ip6_finish_output2(struct sk_buff *skb)
+static int ip6_finish_output2(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct net_device *dev = dst->dev;
@@ -70,7 +70,7 @@ static int ip6_finish_output2(struct sk_buff *skb)
if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
- if (!(dev->flags & IFF_LOOPBACK) && sk_mc_loop(skb->sk) &&
+ if (!(dev->flags & IFF_LOOPBACK) && sk_mc_loop(sk) &&
((mroute6_socket(dev_net(dev), skb) &&
!(IP6CB(skb)->flags & IP6SKB_FORWARDED)) ||
ipv6_chk_mcast_addr(dev, &ipv6_hdr(skb)->daddr,
@@ -82,7 +82,7 @@ static int ip6_finish_output2(struct sk_buff *skb)
*/
if (newskb)
NF_HOOK(NFPROTO_IPV6, NF_INET_POST_ROUTING,
- newskb, NULL, newskb->dev,
+ sk, newskb, NULL, newskb->dev,
dev_loopback_xmit);
if (ipv6_hdr(skb)->hop_limit == 0) {
@@ -122,14 +122,14 @@ static int ip6_finish_output2(struct sk_buff *skb)
return -EINVAL;
}
-static int ip6_finish_output(struct sk_buff *skb)
+static int ip6_finish_output(struct sock *sk, struct sk_buff *skb)
{
if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
dst_allfrag(skb_dst(skb)) ||
(IP6CB(skb)->frag_max_size && skb->len > IP6CB(skb)->frag_max_size))
- return ip6_fragment(skb, ip6_finish_output2);
+ return ip6_fragment(sk, skb, ip6_finish_output2);
else
- return ip6_finish_output2(skb);
+ return ip6_finish_output2(sk, skb);
}
int ip6_output(struct sock *sk, struct sk_buff *skb)
@@ -143,7 +143,8 @@ int ip6_output(struct sock *sk, struct sk_buff *skb)
return 0;
}
- return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb, NULL, dev,
+ return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, sk, skb,
+ NULL, dev,
ip6_finish_output,
!(IP6CB(skb)->flags & IP6SKB_REROUTED));
}
@@ -223,8 +224,8 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
if ((skb->len <= mtu) || skb->ignore_df || skb_is_gso(skb)) {
IP6_UPD_PO_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUT, skb->len);
- return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
- dst->dev, dst_output);
+ return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
+ NULL, dst->dev, dst_output_sk);
}
skb->dev = dst->dev;
@@ -316,10 +317,10 @@ static int ip6_forward_proxy_check(struct sk_buff *skb)
return 0;
}
-static inline int ip6_forward_finish(struct sk_buff *skb)
+static inline int ip6_forward_finish(struct sock *sk, struct sk_buff *skb)
{
skb_sender_cpu_clear(skb);
- return dst_output(skb);
+ return dst_output_sk(sk, skb);
}
static unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst)
@@ -511,7 +512,8 @@ int ip6_forward(struct sk_buff *skb)
IP6_INC_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTFORWDATAGRAMS);
IP6_ADD_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTOCTETS, skb->len);
- return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, skb, skb->dev, dst->dev,
+ return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, NULL, skb,
+ skb->dev, dst->dev,
ip6_forward_finish);
error:
@@ -538,11 +540,13 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
skb_copy_secmark(to, from);
}
-int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
+int ip6_fragment(struct sock *sk, struct sk_buff *skb,
+ int (*output)(struct sock *, struct sk_buff *))
{
struct sk_buff *frag;
struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
- struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
+ struct ipv6_pinfo *np = skb->sk && !dev_recursion_level() ?
+ inet6_sk(skb->sk) : NULL;
struct ipv6hdr *tmp_hdr;
struct frag_hdr *fh;
unsigned int mtu, hlen, left, len;
@@ -666,7 +670,7 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
ip6_copy_metadata(frag, skb);
}
- err = output(skb);
+ err = output(sk, skb);
if (!err)
IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),
IPSTATS_MIB_FRAGCREATES);
@@ -799,7 +803,7 @@ slow_path:
/*
* Put this fragment into the sending queue.
*/
- err = output(frag);
+ err = output(sk, frag);
if (err)
goto fail;
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 9bd85f0dff69..5cafd92c2312 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1100,7 +1100,7 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
ipv6h->nexthdr = proto;
ipv6h->saddr = fl6->saddr;
ipv6h->daddr = fl6->daddr;
- ip6tunnel_xmit(skb, dev);
+ ip6tunnel_xmit(NULL, skb, dev);
if (ndst)
ip6_tnl_dst_store(t, ndst);
return 0;
@@ -1264,8 +1264,6 @@ static void ip6_tnl_link_config(struct ip6_tnl *t)
else
dev->flags &= ~IFF_POINTOPOINT;
- dev->iflink = p->link;
-
if (p->flags & IP6_TNL_F_CAP_XMIT) {
int strict = (ipv6_addr_type(&p->raddr) &
(IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL));
@@ -1517,6 +1515,13 @@ ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
return 0;
}
+int ip6_tnl_get_iflink(const struct net_device *dev)
+{
+ struct ip6_tnl *t = netdev_priv(dev);
+
+ return t->parms.link;
+}
+EXPORT_SYMBOL(ip6_tnl_get_iflink);
static const struct net_device_ops ip6_tnl_netdev_ops = {
.ndo_init = ip6_tnl_dev_init,
@@ -1525,6 +1530,7 @@ static const struct net_device_ops ip6_tnl_netdev_ops = {
.ndo_do_ioctl = ip6_tnl_ioctl,
.ndo_change_mtu = ip6_tnl_change_mtu,
.ndo_get_stats = ip6_get_stats,
+ .ndo_get_iflink = ip6_tnl_get_iflink,
};
diff --git a/net/ipv6/ip6_udp_tunnel.c b/net/ipv6/ip6_udp_tunnel.c
index 32d9b268e7d8..bba8903e871f 100644
--- a/net/ipv6/ip6_udp_tunnel.c
+++ b/net/ipv6/ip6_udp_tunnel.c
@@ -62,7 +62,8 @@ error:
}
EXPORT_SYMBOL_GPL(udp_sock_create6);
-int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
+int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sock *sk,
+ struct sk_buff *skb,
struct net_device *dev, struct in6_addr *saddr,
struct in6_addr *daddr,
__u8 prio, __u8 ttl, __be16 src_port,
@@ -97,7 +98,7 @@ int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
ip6h->daddr = *daddr;
ip6h->saddr = *saddr;
- ip6tunnel_xmit(skb, dev);
+ ip6tunnel_xmit(sk, skb, dev);
return 0;
}
EXPORT_SYMBOL_GPL(udp_tunnel6_xmit_skb);
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 53d90ed68905..b53148444e15 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -601,8 +601,6 @@ static void vti6_link_config(struct ip6_tnl *t)
dev->flags |= IFF_POINTOPOINT;
else
dev->flags &= ~IFF_POINTOPOINT;
-
- dev->iflink = p->link;
}
/**
@@ -808,6 +806,7 @@ static const struct net_device_ops vti6_netdev_ops = {
.ndo_do_ioctl = vti6_ioctl,
.ndo_change_mtu = vti6_change_mtu,
.ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip6_tnl_get_iflink,
};
/**
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index caf6b99374e6..74ceb73c1c9a 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -250,7 +250,7 @@ static int __net_init ip6mr_rules_init(struct net *net)
return 0;
err2:
- kfree(mrt);
+ ip6mr_free_table(mrt);
err1:
fib_rules_unregister(ops);
return err;
@@ -265,8 +265,8 @@ static void __net_exit ip6mr_rules_exit(struct net *net)
list_del(&mrt->list);
ip6mr_free_table(mrt);
}
- rtnl_unlock();
fib_rules_unregister(net->ipv6.mr6_rules_ops);
+ rtnl_unlock();
}
#else
#define ip6mr_for_each_table(mrt, net) \
@@ -334,7 +334,7 @@ static struct mr6_table *ip6mr_new_table(struct net *net, u32 id)
static void ip6mr_free_table(struct mr6_table *mrt)
{
- del_timer(&mrt->ipmr_expire_timer);
+ del_timer_sync(&mrt->ipmr_expire_timer);
mroute_clean_tables(mrt);
kfree(mrt);
}
@@ -718,8 +718,14 @@ static netdev_tx_t reg_vif_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
}
+static int reg_vif_get_iflink(const struct net_device *dev)
+{
+ return 0;
+}
+
static const struct net_device_ops reg_vif_netdev_ops = {
.ndo_start_xmit = reg_vif_xmit,
+ .ndo_get_iflink = reg_vif_get_iflink,
};
static void reg_vif_setup(struct net_device *dev)
@@ -752,7 +758,6 @@ static struct net_device *ip6mr_reg_vif(struct net *net, struct mr6_table *mrt)
free_netdev(dev);
return NULL;
}
- dev->iflink = 0;
if (dev_open(dev))
goto failure;
@@ -992,7 +997,7 @@ static int mif6_add(struct net *net, struct mr6_table *mrt,
v->pkt_out = 0;
v->link = dev->ifindex;
if (v->flags & MIFF_REGISTER)
- v->link = dev->iflink;
+ v->link = dev_get_iflink(dev);
/* And finish update writing critical data */
write_lock_bh(&mrt_lock);
@@ -1981,13 +1986,13 @@ int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
}
#endif
-static inline int ip6mr_forward2_finish(struct sk_buff *skb)
+static inline int ip6mr_forward2_finish(struct sock *sk, struct sk_buff *skb)
{
IP6_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUTFORWDATAGRAMS);
IP6_ADD_STATS_BH(dev_net(skb_dst(skb)->dev), ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUTOCTETS, skb->len);
- return dst_output(skb);
+ return dst_output_sk(sk, skb);
}
/*
@@ -2059,7 +2064,8 @@ static int ip6mr_forward2(struct net *net, struct mr6_table *mrt,
IP6CB(skb)->flags |= IP6SKB_FORWARDED;
- return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, skb, skb->dev, dev,
+ return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, NULL, skb,
+ skb->dev, dev,
ip6mr_forward2_finish);
out_free:
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index fac1f27e428e..083b2927fc67 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1644,8 +1644,9 @@ static void mld_sendpack(struct sk_buff *skb)
payload_len = skb->len;
- err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
- dst_output);
+ err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT,
+ net->ipv6.igmp_sk, skb, NULL, skb->dev,
+ dst_output_sk);
out:
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, ICMPV6_MLD2_REPORT);
@@ -2007,8 +2008,8 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
}
skb_dst_set(skb, dst);
- err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
- dst_output);
+ err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
+ NULL, skb->dev, dst_output_sk);
out:
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, type);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index c283827d60e2..96f153c0846b 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -463,8 +463,9 @@ static void ndisc_send_skb(struct sk_buff *skb,
idev = __in6_dev_get(dst->dev);
IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
- err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL, dst->dev,
- dst_output);
+ err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
+ NULL, dst->dev,
+ dst_output_sk);
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, type);
ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);
@@ -1225,7 +1226,14 @@ static void ndisc_router_discovery(struct sk_buff *skb)
if (rt)
rt6_set_expires(rt, jiffies + (HZ * lifetime));
if (ra_msg->icmph.icmp6_hop_limit) {
- in6_dev->cnf.hop_limit = ra_msg->icmph.icmp6_hop_limit;
+ /* Only set hop_limit on the interface if it is higher than
+ * the current hop_limit.
+ */
+ if (in6_dev->cnf.hop_limit < ra_msg->icmph.icmp6_hop_limit) {
+ in6_dev->cnf.hop_limit = ra_msg->icmph.icmp6_hop_limit;
+ } else {
+ ND_PRINTK(2, warn, "RA: Got route advertisement with lower hop_limit than current\n");
+ }
if (rt)
dst_metric_set(&rt->dst, RTAX_HOPLIMIT,
ra_msg->icmph.icmp6_hop_limit);
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 398377a9d018..d958718b5031 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -84,7 +84,7 @@ static void nf_ip6_saveroute(const struct sk_buff *skb,
{
struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry);
- if (entry->hook == NF_INET_LOCAL_OUT) {
+ if (entry->state.hook == NF_INET_LOCAL_OUT) {
const struct ipv6hdr *iph = ipv6_hdr(skb);
rt_info->daddr = iph->daddr;
@@ -98,7 +98,7 @@ static int nf_ip6_reroute(struct sk_buff *skb,
{
struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry);
- if (entry->hook == NF_INET_LOCAL_OUT) {
+ if (entry->state.hook == NF_INET_LOCAL_OUT) {
const struct ipv6hdr *iph = ipv6_hdr(skb);
if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
!ipv6_addr_equal(&iph->saddr, &rt_info->saddr) ||
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 83f59dc3cccc..1a732a1d3c8e 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -317,8 +317,7 @@ ip6t_next_entry(const struct ip6t_entry *entry)
unsigned int
ip6t_do_table(struct sk_buff *skb,
unsigned int hook,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct xt_table *table)
{
static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
@@ -333,8 +332,8 @@ ip6t_do_table(struct sk_buff *skb,
unsigned int addend;
/* Initialization */
- indev = in ? in->name : nulldevname;
- outdev = out ? out->name : nulldevname;
+ indev = state->in ? state->in->name : nulldevname;
+ outdev = state->out ? state->out->name : nulldevname;
/* We handle fragments by dealing with the first fragment as
* if it was a normal packet. All other fragments are treated
* normally, except that they will NEVER match rules that ask
@@ -342,8 +341,8 @@ ip6t_do_table(struct sk_buff *skb,
* rule is also a fragment-specific rule, non-fragments won't
* match it. */
acpar.hotdrop = false;
- acpar.in = in;
- acpar.out = out;
+ acpar.in = state->in;
+ acpar.out = state->out;
acpar.family = NFPROTO_IPV6;
acpar.hooknum = hook;
@@ -393,7 +392,7 @@ ip6t_do_table(struct sk_buff *skb,
#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
/* The packet is traced: log it */
if (unlikely(skb->nf_trace))
- trace_packet(skb, hook, in, out,
+ trace_packet(skb, hook, state->in, state->out,
table->name, private, e);
#endif
/* Standard target? */
diff --git a/net/ipv6/netfilter/ip6t_SYNPROXY.c b/net/ipv6/netfilter/ip6t_SYNPROXY.c
index a0d17270117c..6edb7b106de7 100644
--- a/net/ipv6/netfilter/ip6t_SYNPROXY.c
+++ b/net/ipv6/netfilter/ip6t_SYNPROXY.c
@@ -315,11 +315,9 @@ synproxy_tg6(struct sk_buff *skb, const struct xt_action_param *par)
static unsigned int ipv6_synproxy_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *nhs)
{
- struct synproxy_net *snet = synproxy_pernet(dev_net(in ? : out));
+ struct synproxy_net *snet = synproxy_pernet(dev_net(nhs->in ? : nhs->out));
enum ip_conntrack_info ctinfo;
struct nf_conn *ct;
struct nf_conn_synproxy *synproxy;
diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index ca7f6c128086..5c33d8abc077 100644
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -33,13 +33,11 @@ static const struct xt_table packet_filter = {
/* The work comes in here from netfilter.c. */
static unsigned int
ip6table_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- const struct net *net = dev_net((in != NULL) ? in : out);
+ const struct net *net = dev_net(state->in ? state->in : state->out);
- return ip6t_do_table(skb, ops->hooknum, in, out,
- net->ipv6.ip6table_filter);
+ return ip6t_do_table(skb, ops->hooknum, state, net->ipv6.ip6table_filter);
}
static struct nf_hook_ops *filter_ops __read_mostly;
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 307bbb782d14..b551f5b79fe2 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -32,7 +32,7 @@ static const struct xt_table packet_mangler = {
};
static unsigned int
-ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out)
+ip6t_mangle_out(struct sk_buff *skb, const struct nf_hook_state *state)
{
unsigned int ret;
struct in6_addr saddr, daddr;
@@ -57,8 +57,8 @@ ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out)
/* flowlabel and prio (includes version, which shouldn't change either */
flowlabel = *((u_int32_t *)ipv6_hdr(skb));
- ret = ip6t_do_table(skb, NF_INET_LOCAL_OUT, NULL, out,
- dev_net(out)->ipv6.ip6table_mangle);
+ ret = ip6t_do_table(skb, NF_INET_LOCAL_OUT, state,
+ dev_net(state->out)->ipv6.ip6table_mangle);
if (ret != NF_DROP && ret != NF_STOLEN &&
(!ipv6_addr_equal(&ipv6_hdr(skb)->saddr, &saddr) ||
@@ -77,17 +77,16 @@ ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out)
/* The work comes in here from netfilter.c. */
static unsigned int
ip6table_mangle_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
if (ops->hooknum == NF_INET_LOCAL_OUT)
- return ip6t_mangle_out(skb, out);
+ return ip6t_mangle_out(skb, state);
if (ops->hooknum == NF_INET_POST_ROUTING)
- return ip6t_do_table(skb, ops->hooknum, in, out,
- dev_net(out)->ipv6.ip6table_mangle);
+ return ip6t_do_table(skb, ops->hooknum, state,
+ dev_net(state->out)->ipv6.ip6table_mangle);
/* INPUT/FORWARD */
- return ip6t_do_table(skb, ops->hooknum, in, out,
- dev_net(in)->ipv6.ip6table_mangle);
+ return ip6t_do_table(skb, ops->hooknum, state,
+ dev_net(state->in)->ipv6.ip6table_mangle);
}
static struct nf_hook_ops *mangle_ops __read_mostly;
diff --git a/net/ipv6/netfilter/ip6table_nat.c b/net/ipv6/netfilter/ip6table_nat.c
index b0634ac996b7..c3a7f7af0ed4 100644
--- a/net/ipv6/netfilter/ip6table_nat.c
+++ b/net/ipv6/netfilter/ip6table_nat.c
@@ -32,49 +32,40 @@ static const struct xt_table nf_nat_ipv6_table = {
static unsigned int ip6table_nat_do_chain(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct)
{
struct net *net = nf_ct_net(ct);
- return ip6t_do_table(skb, ops->hooknum, in, out, net->ipv6.ip6table_nat);
+ return ip6t_do_table(skb, ops->hooknum, state, net->ipv6.ip6table_nat);
}
static unsigned int ip6table_nat_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv6_fn(ops, skb, in, out, ip6table_nat_do_chain);
+ return nf_nat_ipv6_fn(ops, skb, state, ip6table_nat_do_chain);
}
static unsigned int ip6table_nat_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv6_in(ops, skb, in, out, ip6table_nat_do_chain);
+ return nf_nat_ipv6_in(ops, skb, state, ip6table_nat_do_chain);
}
static unsigned int ip6table_nat_out(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv6_out(ops, skb, in, out, ip6table_nat_do_chain);
+ return nf_nat_ipv6_out(ops, skb, state, ip6table_nat_do_chain);
}
static unsigned int ip6table_nat_local_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv6_local_fn(ops, skb, in, out, ip6table_nat_do_chain);
+ return nf_nat_ipv6_local_fn(ops, skb, state, ip6table_nat_do_chain);
}
static struct nf_hook_ops nf_nat_ipv6_ops[] __read_mostly = {
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index 5274740acecc..0b33caad2b69 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -20,13 +20,11 @@ static const struct xt_table packet_raw = {
/* The work comes in here from netfilter.c. */
static unsigned int
ip6table_raw_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- const struct net *net = dev_net((in != NULL) ? in : out);
+ const struct net *net = dev_net(state->in ? state->in : state->out);
- return ip6t_do_table(skb, ops->hooknum, in, out,
- net->ipv6.ip6table_raw);
+ return ip6t_do_table(skb, ops->hooknum, state, net->ipv6.ip6table_raw);
}
static struct nf_hook_ops *rawtable_ops __read_mostly;
diff --git a/net/ipv6/netfilter/ip6table_security.c b/net/ipv6/netfilter/ip6table_security.c
index ab3b0219ecfa..fcef83c25f7b 100644
--- a/net/ipv6/netfilter/ip6table_security.c
+++ b/net/ipv6/netfilter/ip6table_security.c
@@ -37,13 +37,11 @@ static const struct xt_table security_table = {
static unsigned int
ip6table_security_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- const struct net *net = dev_net((in != NULL) ? in : out);
+ const struct net *net = dev_net(state->in ? state->in : state->out);
- return ip6t_do_table(skb, ops->hooknum, in, out,
+ return ip6t_do_table(skb, ops->hooknum, state,
net->ipv6.ip6table_security);
}
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index fba91c6fc7ca..4ba0c34c627b 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -97,9 +97,7 @@ static int ipv6_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
static unsigned int ipv6_helper(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nf_conn *ct;
const struct nf_conn_help *help;
@@ -135,9 +133,7 @@ static unsigned int ipv6_helper(const struct nf_hook_ops *ops,
static unsigned int ipv6_confirm(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
@@ -171,25 +167,21 @@ out:
static unsigned int ipv6_conntrack_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_conntrack_in(dev_net(in), PF_INET6, ops->hooknum, skb);
+ return nf_conntrack_in(dev_net(state->in), PF_INET6, ops->hooknum, skb);
}
static unsigned int ipv6_conntrack_local(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
/* root is playing with raw sockets. */
if (skb->len < sizeof(struct ipv6hdr)) {
net_notice_ratelimited("ipv6_conntrack_local: packet too short\n");
return NF_ACCEPT;
}
- return nf_conntrack_in(dev_net(out), PF_INET6, ops->hooknum, skb);
+ return nf_conntrack_in(dev_net(state->out), PF_INET6, ops->hooknum, skb);
}
static struct nf_hook_ops ipv6_conntrack_ops[] __read_mostly = {
diff --git a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
index e70382e4dfb5..a45db0b4785c 100644
--- a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
+++ b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
@@ -54,9 +54,7 @@ static enum ip6_defrag_users nf_ct6_defrag_user(unsigned int hooknum,
static unsigned int ipv6_defrag(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct sk_buff *reasm;
@@ -77,9 +75,9 @@ static unsigned int ipv6_defrag(const struct nf_hook_ops *ops,
nf_ct_frag6_consume_orig(reasm);
- NF_HOOK_THRESH(NFPROTO_IPV6, ops->hooknum, reasm,
- (struct net_device *) in, (struct net_device *) out,
- okfn, NF_IP6_PRI_CONNTRACK_DEFRAG + 1);
+ NF_HOOK_THRESH(NFPROTO_IPV6, ops->hooknum, state->sk, reasm,
+ state->in, state->out,
+ state->okfn, NF_IP6_PRI_CONNTRACK_DEFRAG + 1);
return NF_STOLEN;
}
diff --git a/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c b/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
index c5812e1c1ffb..e76900e0aa92 100644
--- a/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
@@ -263,11 +263,10 @@ EXPORT_SYMBOL_GPL(nf_nat_icmpv6_reply_translation);
unsigned int
nf_nat_ipv6_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
+ const struct nf_hook_state *state,
unsigned int (*do_chain)(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct))
{
struct nf_conn *ct;
@@ -318,7 +317,7 @@ nf_nat_ipv6_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
if (!nf_nat_initialized(ct, maniptype)) {
unsigned int ret;
- ret = do_chain(ops, skb, in, out, ct);
+ ret = do_chain(ops, skb, state, ct);
if (ret != NF_ACCEPT)
return ret;
@@ -332,7 +331,7 @@ nf_nat_ipv6_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
pr_debug("Already setup manip %s for ct %p\n",
maniptype == NF_NAT_MANIP_SRC ? "SRC" : "DST",
ct);
- if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
+ if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, state->out))
goto oif_changed;
}
break;
@@ -341,7 +340,7 @@ nf_nat_ipv6_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
/* ESTABLISHED */
NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
ctinfo == IP_CT_ESTABLISHED_REPLY);
- if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
+ if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, state->out))
goto oif_changed;
}
@@ -355,17 +354,16 @@ EXPORT_SYMBOL_GPL(nf_nat_ipv6_fn);
unsigned int
nf_nat_ipv6_in(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
+ const struct nf_hook_state *state,
unsigned int (*do_chain)(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct))
{
unsigned int ret;
struct in6_addr daddr = ipv6_hdr(skb)->daddr;
- ret = nf_nat_ipv6_fn(ops, skb, in, out, do_chain);
+ ret = nf_nat_ipv6_fn(ops, skb, state, do_chain);
if (ret != NF_DROP && ret != NF_STOLEN &&
ipv6_addr_cmp(&daddr, &ipv6_hdr(skb)->daddr))
skb_dst_drop(skb);
@@ -376,11 +374,10 @@ EXPORT_SYMBOL_GPL(nf_nat_ipv6_in);
unsigned int
nf_nat_ipv6_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
+ const struct nf_hook_state *state,
unsigned int (*do_chain)(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct))
{
#ifdef CONFIG_XFRM
@@ -394,7 +391,7 @@ nf_nat_ipv6_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
if (skb->len < sizeof(struct ipv6hdr))
return NF_ACCEPT;
- ret = nf_nat_ipv6_fn(ops, skb, in, out, do_chain);
+ ret = nf_nat_ipv6_fn(ops, skb, state, do_chain);
#ifdef CONFIG_XFRM
if (ret != NF_DROP && ret != NF_STOLEN &&
!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
@@ -418,11 +415,10 @@ EXPORT_SYMBOL_GPL(nf_nat_ipv6_out);
unsigned int
nf_nat_ipv6_local_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
+ const struct nf_hook_state *state,
unsigned int (*do_chain)(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct))
{
const struct nf_conn *ct;
@@ -434,7 +430,7 @@ nf_nat_ipv6_local_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
if (skb->len < sizeof(struct ipv6hdr))
return NF_ACCEPT;
- ret = nf_nat_ipv6_fn(ops, skb, in, out, do_chain);
+ ret = nf_nat_ipv6_fn(ops, skb, state, do_chain);
if (ret != NF_DROP && ret != NF_STOLEN &&
(ct = nf_ct_get(skb, &ctinfo)) != NULL) {
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
diff --git a/net/ipv6/netfilter/nf_tables_ipv6.c b/net/ipv6/netfilter/nf_tables_ipv6.c
index 0d812b31277d..c8148ba76d1a 100644
--- a/net/ipv6/netfilter/nf_tables_ipv6.c
+++ b/net/ipv6/netfilter/nf_tables_ipv6.c
@@ -18,14 +18,12 @@
static unsigned int nft_do_chain_ipv6(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
struct nft_pktinfo pkt;
/* malformed packet, drop it */
- if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0)
+ if (nft_set_pktinfo_ipv6(&pkt, ops, skb, state) < 0)
return NF_DROP;
return nft_do_chain(&pkt, ops);
@@ -33,9 +31,7 @@ static unsigned int nft_do_chain_ipv6(const struct nf_hook_ops *ops,
static unsigned int nft_ipv6_output(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
if (unlikely(skb->len < sizeof(struct ipv6hdr))) {
if (net_ratelimit())
@@ -44,7 +40,7 @@ static unsigned int nft_ipv6_output(const struct nf_hook_ops *ops,
return NF_ACCEPT;
}
- return nft_do_chain_ipv6(ops, skb, in, out, okfn);
+ return nft_do_chain_ipv6(ops, skb, state);
}
struct nft_af_info nft_af_ipv6 __read_mostly = {
diff --git a/net/ipv6/netfilter/nft_chain_nat_ipv6.c b/net/ipv6/netfilter/nft_chain_nat_ipv6.c
index 1c4b75dd425b..951bb458b7bd 100644
--- a/net/ipv6/netfilter/nft_chain_nat_ipv6.c
+++ b/net/ipv6/netfilter/nft_chain_nat_ipv6.c
@@ -26,51 +26,42 @@
static unsigned int nft_nat_do_chain(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
+ const struct nf_hook_state *state,
struct nf_conn *ct)
{
struct nft_pktinfo pkt;
- nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out);
+ nft_set_pktinfo_ipv6(&pkt, ops, skb, state);
return nft_do_chain(&pkt, ops);
}
static unsigned int nft_nat_ipv6_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv6_fn(ops, skb, in, out, nft_nat_do_chain);
+ return nf_nat_ipv6_fn(ops, skb, state, nft_nat_do_chain);
}
static unsigned int nft_nat_ipv6_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv6_in(ops, skb, in, out, nft_nat_do_chain);
+ return nf_nat_ipv6_in(ops, skb, state, nft_nat_do_chain);
}
static unsigned int nft_nat_ipv6_out(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv6_out(ops, skb, in, out, nft_nat_do_chain);
+ return nf_nat_ipv6_out(ops, skb, state, nft_nat_do_chain);
}
static unsigned int nft_nat_ipv6_local_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
- return nf_nat_ipv6_local_fn(ops, skb, in, out, nft_nat_do_chain);
+ return nf_nat_ipv6_local_fn(ops, skb, state, nft_nat_do_chain);
}
static const struct nf_chain_type nft_chain_nat_ipv6 = {
diff --git a/net/ipv6/netfilter/nft_chain_route_ipv6.c b/net/ipv6/netfilter/nft_chain_route_ipv6.c
index 42031299585e..0dafdaac5e17 100644
--- a/net/ipv6/netfilter/nft_chain_route_ipv6.c
+++ b/net/ipv6/netfilter/nft_chain_route_ipv6.c
@@ -24,9 +24,7 @@
static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
unsigned int ret;
struct nft_pktinfo pkt;
@@ -35,7 +33,7 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
u32 mark, flowlabel;
/* malformed packet, drop it */
- if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0)
+ if (nft_set_pktinfo_ipv6(&pkt, ops, skb, state) < 0)
return NF_DROP;
/* save source/dest address, mark, hoplimit, flowlabel, priority */
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index 4016a6ef9d61..85892af57364 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -136,7 +136,7 @@ int ip6_dst_hoplimit(struct dst_entry *dst)
EXPORT_SYMBOL(ip6_dst_hoplimit);
#endif
-int __ip6_local_out(struct sk_buff *skb)
+static int __ip6_local_out_sk(struct sock *sk, struct sk_buff *skb)
{
int len;
@@ -146,19 +146,30 @@ int __ip6_local_out(struct sk_buff *skb)
ipv6_hdr(skb)->payload_len = htons(len);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
- return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
- skb_dst(skb)->dev, dst_output);
+ return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
+ NULL, skb_dst(skb)->dev, dst_output_sk);
+}
+
+int __ip6_local_out(struct sk_buff *skb)
+{
+ return __ip6_local_out_sk(skb->sk, skb);
}
EXPORT_SYMBOL_GPL(__ip6_local_out);
-int ip6_local_out(struct sk_buff *skb)
+int ip6_local_out_sk(struct sock *sk, struct sk_buff *skb)
{
int err;
- err = __ip6_local_out(skb);
+ err = __ip6_local_out_sk(sk, skb);
if (likely(err == 1))
- err = dst_output(skb);
+ err = dst_output_sk(sk, skb);
return err;
}
+EXPORT_SYMBOL_GPL(ip6_local_out_sk);
+
+int ip6_local_out(struct sk_buff *skb)
+{
+ return ip6_local_out_sk(skb->sk, skb);
+}
EXPORT_SYMBOL_GPL(ip6_local_out);
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 79ccdb4c1b33..8072bd4139b7 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -652,8 +652,8 @@ static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length,
goto error_fault;
IP6_UPD_PO_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
- err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
- rt->dst.dev, dst_output);
+ err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
+ NULL, rt->dst.dev, dst_output_sk);
if (err > 0)
err = net_xmit_errno(err);
if (err)
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index e6b9f51b15e8..6cf2026a9cea 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1076,7 +1076,6 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
if (dev->mtu < IPV6_MIN_MTU)
dev->mtu = IPV6_MIN_MTU;
}
- dev->iflink = tunnel->parms.link;
}
static void ipip6_tunnel_update(struct ip_tunnel *t, struct ip_tunnel_parm *p)
@@ -1336,6 +1335,7 @@ static const struct net_device_ops ipip6_netdev_ops = {
.ndo_do_ioctl = ipip6_tunnel_ioctl,
.ndo_change_mtu = ipip6_tunnel_change_mtu,
.ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip_tunnel_get_iflink,
};
static void ipip6_dev_free(struct net_device *dev)
@@ -1366,7 +1366,6 @@ static void ipip6_tunnel_setup(struct net_device *dev)
dev->mtu = ETH_DATA_LEN - t_hlen;
dev->flags = IFF_NOARP;
netif_keep_dst(dev);
- dev->iflink = 0;
dev->addr_len = 4;
dev->features |= NETIF_F_LLTX;
dev->features |= SIT_FEATURES;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 7cdad8401434..f73a97f6e68e 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1348,6 +1348,15 @@ static void tcp_v6_fill_cb(struct sk_buff *skb, const struct ipv6hdr *hdr,
TCP_SKB_CB(skb)->sacked = 0;
}
+static void tcp_v6_restore_cb(struct sk_buff *skb)
+{
+ /* We need to move header back to the beginning if xfrm6_policy_check()
+ * and tcp_v6_fill_cb() are going to be called again.
+ */
+ memmove(IP6CB(skb), &TCP_SKB_CB(skb)->header.h6,
+ sizeof(struct inet6_skb_parm));
+}
+
static int tcp_v6_rcv(struct sk_buff *skb)
{
const struct tcphdr *th;
@@ -1480,6 +1489,7 @@ do_time_wait:
inet_twsk_deschedule(tw, &tcp_death_row);
inet_twsk_put(tw);
sk = sk2;
+ tcp_v6_restore_cb(skb);
goto process;
}
/* Fall through to ACK */
@@ -1488,6 +1498,7 @@ do_time_wait:
tcp_v6_timewait_ack(sk, skb);
break;
case TCP_TW_RST:
+ tcp_v6_restore_cb(skb);
goto no_tcp_socket;
case TCP_TW_SUCCESS:
;
@@ -1522,7 +1533,7 @@ static void tcp_v6_early_demux(struct sk_buff *skb)
skb->sk = sk;
skb->destructor = sock_edemux;
if (sk_fullsock(sk)) {
- struct dst_entry *dst = sk->sk_rx_dst;
+ struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
if (dst)
dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index f48fbe4d16f5..74bd17882a2f 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -42,7 +42,8 @@ int xfrm6_transport_finish(struct sk_buff *skb, int async)
ipv6_hdr(skb)->payload_len = htons(skb->len);
__skb_push(skb, skb->data - skb_network_header(skb));
- NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, skb, skb->dev, NULL,
+ NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, NULL, skb,
+ skb->dev, NULL,
ip6_rcv_finish);
return -1;
}
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 010f8bd2d577..09c76a7b474d 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -120,7 +120,7 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
}
EXPORT_SYMBOL(xfrm6_prepare_output);
-int xfrm6_output_finish(struct sk_buff *skb)
+int xfrm6_output_finish(struct sock *sk, struct sk_buff *skb)
{
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
@@ -128,10 +128,10 @@ int xfrm6_output_finish(struct sk_buff *skb)
IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
#endif
- return xfrm_output(skb);
+ return xfrm_output(sk, skb);
}
-static int __xfrm6_output(struct sk_buff *skb)
+static int __xfrm6_output(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct xfrm_state *x = dst->xfrm;
@@ -140,7 +140,7 @@ static int __xfrm6_output(struct sk_buff *skb)
#ifdef CONFIG_NETFILTER
if (!x) {
IP6CB(skb)->flags |= IP6SKB_REROUTED;
- return dst_output(skb);
+ return dst_output_sk(sk, skb);
}
#endif
@@ -160,14 +160,15 @@ static int __xfrm6_output(struct sk_buff *skb)
if (x->props.mode == XFRM_MODE_TUNNEL &&
((skb->len > mtu && !skb_is_gso(skb)) ||
dst_allfrag(skb_dst(skb)))) {
- return ip6_fragment(skb, x->outer_mode->afinfo->output_finish);
+ return ip6_fragment(sk, skb,
+ x->outer_mode->afinfo->output_finish);
}
- return x->outer_mode->afinfo->output_finish(skb);
+ return x->outer_mode->afinfo->output_finish(sk, skb);
}
int xfrm6_output(struct sock *sk, struct sk_buff *skb)
{
- return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb,
+ return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, sk, skb,
NULL, skb_dst(skb)->dev, __xfrm6_output,
!(IP6CB(skb)->flags & IP6SKB_REROUTED));
}
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 94b4c898a116..6daa52a18d40 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1114,10 +1114,8 @@ static int iucv_sock_sendmsg(struct socket *sock, struct msghdr *msg,
noblock, &err);
else
skb = sock_alloc_send_skb(sk, len, noblock, &err);
- if (!skb) {
- err = -ENOMEM;
+ if (!skb)
goto out;
- }
if (iucv->transport == AF_IUCV_TRANS_HIPER)
skb_reserve(skb, sizeof(struct af_iucv_trans_hdr) + ETH_HLEN);
if (memcpy_from_msg(skb_put(skb, len), msg, len)) {
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 895348e44c7d..a29a504492af 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1871,6 +1871,7 @@ static int __init l2tp_init(void)
l2tp_wq = alloc_workqueue("l2tp", WQ_UNBOUND, 0);
if (!l2tp_wq) {
pr_err("alloc_workqueue failed\n");
+ unregister_pernet_device(&l2tp_net_ops);
rc = -ENOMEM;
goto out;
}
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 2c090c507391..5c564a68fb50 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -49,8 +49,6 @@ static void ieee80211_free_tid_rx(struct rcu_head *h)
container_of(h, struct tid_ampdu_rx, rcu_head);
int i;
- del_timer_sync(&tid_rx->reorder_timer);
-
for (i = 0; i < tid_rx->buf_size; i++)
__skb_queue_purge(&tid_rx->reorder_buf[i]);
kfree(tid_rx->reorder_buf);
@@ -93,6 +91,12 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
del_timer_sync(&tid_rx->session_timer);
+ /* make sure ieee80211_sta_reorder_release() doesn't re-arm the timer */
+ spin_lock_bh(&tid_rx->reorder_lock);
+ tid_rx->removed = true;
+ spin_unlock_bh(&tid_rx->reorder_lock);
+ del_timer_sync(&tid_rx->reorder_timer);
+
call_rcu(&tid_rx->rcu_head, ieee80211_free_tid_rx);
}
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 4f7b922cfda4..2cd02278d4d4 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -873,9 +873,10 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata,
set_release_timer:
- mod_timer(&tid_agg_rx->reorder_timer,
- tid_agg_rx->reorder_time[j] + 1 +
- HT_RX_REORDER_BUF_TIMEOUT);
+ if (!tid_agg_rx->removed)
+ mod_timer(&tid_agg_rx->reorder_timer,
+ tid_agg_rx->reorder_time[j] + 1 +
+ HT_RX_REORDER_BUF_TIMEOUT);
} else {
del_timer(&tid_agg_rx->reorder_timer);
}
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 248f56e59ebc..7e2fa4018d41 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -175,6 +175,7 @@ struct tid_ampdu_tx {
* @reorder_lock: serializes access to reorder buffer, see below.
* @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and
* and ssn.
+ * @removed: this session is removed (but might have been found due to RCU)
*
* This structure's lifetime is managed by RCU, assignments to
* the array holding it must hold the aggregation mutex.
@@ -199,6 +200,7 @@ struct tid_ampdu_rx {
u16 timeout;
u8 dialog_token;
bool auto_seq;
+ bool removed;
};
/**
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index fea9ef566427..e6163017c42d 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -120,12 +120,8 @@ EXPORT_SYMBOL(nf_unregister_hooks);
unsigned int nf_iterate(struct list_head *head,
struct sk_buff *skb,
- unsigned int hook,
- const struct net_device *indev,
- const struct net_device *outdev,
- struct nf_hook_ops **elemp,
- int (*okfn)(struct sk_buff *),
- int hook_thresh)
+ struct nf_hook_state *state,
+ struct nf_hook_ops **elemp)
{
unsigned int verdict;
@@ -134,19 +130,19 @@ unsigned int nf_iterate(struct list_head *head,
* function because of risk of continuing from deleted element.
*/
list_for_each_entry_continue_rcu((*elemp), head, list) {
- if (hook_thresh > (*elemp)->priority)
+ if (state->thresh > (*elemp)->priority)
continue;
/* Optimization: we don't need to hold module
reference here, since function can't sleep. --RR */
repeat:
- verdict = (*elemp)->hook(*elemp, skb, indev, outdev, okfn);
+ verdict = (*elemp)->hook(*elemp, skb, state);
if (verdict != NF_ACCEPT) {
#ifdef CONFIG_NETFILTER_DEBUG
if (unlikely((verdict & NF_VERDICT_MASK)
> NF_MAX_VERDICT)) {
NFDEBUG("Evil return from %p(%u).\n",
- (*elemp)->hook, hook);
+ (*elemp)->hook, state->hook);
continue;
}
#endif
@@ -161,11 +157,7 @@ repeat:
/* Returns 1 if okfn() needs to be executed by the caller,
* -EPERM for NF_DROP, 0 otherwise. */
-int nf_hook_slow(u_int8_t pf, unsigned int hook, struct sk_buff *skb,
- struct net_device *indev,
- struct net_device *outdev,
- int (*okfn)(struct sk_buff *),
- int hook_thresh)
+int nf_hook_slow(struct sk_buff *skb, struct nf_hook_state *state)
{
struct nf_hook_ops *elem;
unsigned int verdict;
@@ -174,10 +166,11 @@ int nf_hook_slow(u_int8_t pf, unsigned int hook, struct sk_buff *skb,
/* We may already have this, but read-locks nest anyway */
rcu_read_lock();
- elem = list_entry_rcu(&nf_hooks[pf][hook], struct nf_hook_ops, list);
+ elem = list_entry_rcu(&nf_hooks[state->pf][state->hook],
+ struct nf_hook_ops, list);
next_hook:
- verdict = nf_iterate(&nf_hooks[pf][hook], skb, hook, indev,
- outdev, &elem, okfn, hook_thresh);
+ verdict = nf_iterate(&nf_hooks[state->pf][state->hook], skb, state,
+ &elem);
if (verdict == NF_ACCEPT || verdict == NF_STOP) {
ret = 1;
} else if ((verdict & NF_VERDICT_MASK) == NF_DROP) {
@@ -186,8 +179,8 @@ next_hook:
if (ret == 0)
ret = -EPERM;
} else if ((verdict & NF_VERDICT_MASK) == NF_QUEUE) {
- int err = nf_queue(skb, elem, pf, hook, indev, outdev, okfn,
- verdict >> NF_VERDICT_QBITS);
+ int err = nf_queue(skb, elem, state,
+ verdict >> NF_VERDICT_QBITS);
if (err < 0) {
if (err == -ECANCELED)
goto next_hook;
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 04dbd9c7213f..5d2b806a862e 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1272,8 +1272,7 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
*/
static unsigned int
ip_vs_reply4(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
return ip_vs_out(ops->hooknum, skb, AF_INET);
}
@@ -1284,8 +1283,7 @@ ip_vs_reply4(const struct nf_hook_ops *ops, struct sk_buff *skb,
*/
static unsigned int
ip_vs_local_reply4(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
return ip_vs_out(ops->hooknum, skb, AF_INET);
}
@@ -1299,8 +1297,7 @@ ip_vs_local_reply4(const struct nf_hook_ops *ops, struct sk_buff *skb,
*/
static unsigned int
ip_vs_reply6(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
return ip_vs_out(ops->hooknum, skb, AF_INET6);
}
@@ -1311,8 +1308,7 @@ ip_vs_reply6(const struct nf_hook_ops *ops, struct sk_buff *skb,
*/
static unsigned int
ip_vs_local_reply6(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
return ip_vs_out(ops->hooknum, skb, AF_INET6);
}
@@ -1769,9 +1765,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
*/
static unsigned int
ip_vs_remote_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
return ip_vs_in(ops->hooknum, skb, AF_INET);
}
@@ -1782,8 +1776,7 @@ ip_vs_remote_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
*/
static unsigned int
ip_vs_local_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
return ip_vs_in(ops->hooknum, skb, AF_INET);
}
@@ -1796,9 +1789,7 @@ ip_vs_local_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
*/
static unsigned int
ip_vs_remote_request6(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
return ip_vs_in(ops->hooknum, skb, AF_INET6);
}
@@ -1809,8 +1800,7 @@ ip_vs_remote_request6(const struct nf_hook_ops *ops, struct sk_buff *skb,
*/
static unsigned int
ip_vs_local_request6(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
return ip_vs_in(ops->hooknum, skb, AF_INET6);
}
@@ -1829,8 +1819,7 @@ ip_vs_local_request6(const struct nf_hook_ops *ops, struct sk_buff *skb,
*/
static unsigned int
ip_vs_forward_icmp(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
int r;
struct net *net;
@@ -1851,8 +1840,7 @@ ip_vs_forward_icmp(const struct nf_hook_ops *ops, struct sk_buff *skb,
#ifdef CONFIG_IP_VS_IPV6
static unsigned int
ip_vs_forward_icmp_v6(const struct nf_hook_ops *ops, struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ const struct nf_hook_state *state)
{
int r;
struct net *net;
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index bf02932b7188..19986ec5f21a 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -536,8 +536,8 @@ static inline int ip_vs_nat_send_or_cont(int pf, struct sk_buff *skb,
ip_vs_update_conntrack(skb, cp, 1);
if (!local) {
skb_forward_csum(skb);
- NF_HOOK(pf, NF_INET_LOCAL_OUT, skb, NULL, skb_dst(skb)->dev,
- dst_output);
+ NF_HOOK(pf, NF_INET_LOCAL_OUT, NULL, skb,
+ NULL, skb_dst(skb)->dev, dst_output_sk);
} else
ret = NF_ACCEPT;
return ret;
@@ -554,8 +554,8 @@ static inline int ip_vs_send_or_cont(int pf, struct sk_buff *skb,
ip_vs_notrack(skb);
if (!local) {
skb_forward_csum(skb);
- NF_HOOK(pf, NF_INET_LOCAL_OUT, skb, NULL, skb_dst(skb)->dev,
- dst_output);
+ NF_HOOK(pf, NF_INET_LOCAL_OUT, NULL, skb,
+ NULL, skb_dst(skb)->dev, dst_output_sk);
} else
ret = NF_ACCEPT;
return ret;
diff --git a/net/netfilter/nf_internals.h b/net/netfilter/nf_internals.h
index 61a3c927e63c..ea7f36784b3d 100644
--- a/net/netfilter/nf_internals.h
+++ b/net/netfilter/nf_internals.h
@@ -14,16 +14,11 @@
/* core.c */
unsigned int nf_iterate(struct list_head *head, struct sk_buff *skb,
- unsigned int hook, const struct net_device *indev,
- const struct net_device *outdev,
- struct nf_hook_ops **elemp,
- int (*okfn)(struct sk_buff *), int hook_thresh);
+ struct nf_hook_state *state, struct nf_hook_ops **elemp);
/* nf_queue.c */
-int nf_queue(struct sk_buff *skb, struct nf_hook_ops *elem, u_int8_t pf,
- unsigned int hook, struct net_device *indev,
- struct net_device *outdev, int (*okfn)(struct sk_buff *),
- unsigned int queuenum);
+int nf_queue(struct sk_buff *skb, struct nf_hook_ops *elem,
+ struct nf_hook_state *state, unsigned int queuenum);
int __init netfilter_queue_init(void);
/* nf_log.c */
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index fb045b4c2966..2e88032cd5ad 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -48,11 +48,15 @@ EXPORT_SYMBOL(nf_unregister_queue_handler);
void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
{
+ struct nf_hook_state *state = &entry->state;
+
/* Release those devices we held, or Alexey will kill me. */
- if (entry->indev)
- dev_put(entry->indev);
- if (entry->outdev)
- dev_put(entry->outdev);
+ if (state->in)
+ dev_put(state->in);
+ if (state->out)
+ dev_put(state->out);
+ if (state->sk)
+ sock_put(state->sk);
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
if (entry->skb->nf_bridge) {
struct net_device *physdev;
@@ -73,13 +77,17 @@ EXPORT_SYMBOL_GPL(nf_queue_entry_release_refs);
/* Bump dev refs so they don't vanish while packet is out */
bool nf_queue_entry_get_refs(struct nf_queue_entry *entry)
{
+ struct nf_hook_state *state = &entry->state;
+
if (!try_module_get(entry->elem->owner))
return false;
- if (entry->indev)
- dev_hold(entry->indev);
- if (entry->outdev)
- dev_hold(entry->outdev);
+ if (state->in)
+ dev_hold(state->in);
+ if (state->out)
+ dev_hold(state->out);
+ if (state->sk)
+ sock_hold(state->sk);
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
if (entry->skb->nf_bridge) {
struct net_device *physdev;
@@ -102,12 +110,9 @@ EXPORT_SYMBOL_GPL(nf_queue_entry_get_refs);
* through nf_reinject().
*/
int nf_queue(struct sk_buff *skb,
- struct nf_hook_ops *elem,
- u_int8_t pf, unsigned int hook,
- struct net_device *indev,
- struct net_device *outdev,
- int (*okfn)(struct sk_buff *),
- unsigned int queuenum)
+ struct nf_hook_ops *elem,
+ struct nf_hook_state *state,
+ unsigned int queuenum)
{
int status = -ENOENT;
struct nf_queue_entry *entry = NULL;
@@ -123,7 +128,7 @@ int nf_queue(struct sk_buff *skb,
goto err_unlock;
}
- afinfo = nf_get_afinfo(pf);
+ afinfo = nf_get_afinfo(state->pf);
if (!afinfo)
goto err_unlock;
@@ -136,11 +141,7 @@ int nf_queue(struct sk_buff *skb,
*entry = (struct nf_queue_entry) {
.skb = skb,
.elem = elem,
- .pf = pf,
- .hook = hook,
- .indev = indev,
- .outdev = outdev,
- .okfn = okfn,
+ .state = *state,
.size = sizeof(*entry) + afinfo->route_key_size,
};
@@ -186,30 +187,29 @@ void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)
}
if (verdict == NF_ACCEPT) {
- afinfo = nf_get_afinfo(entry->pf);
+ afinfo = nf_get_afinfo(entry->state.pf);
if (!afinfo || afinfo->reroute(skb, entry) < 0)
verdict = NF_DROP;
}
+ entry->state.thresh = INT_MIN;
+
if (verdict == NF_ACCEPT) {
next_hook:
- verdict = nf_iterate(&nf_hooks[entry->pf][entry->hook],
- skb, entry->hook,
- entry->indev, entry->outdev, &elem,
- entry->okfn, INT_MIN);
+ verdict = nf_iterate(&nf_hooks[entry->state.pf][entry->state.hook],
+ skb, &entry->state, &elem);
}
switch (verdict & NF_VERDICT_MASK) {
case NF_ACCEPT:
case NF_STOP:
local_bh_disable();
- entry->okfn(skb);
+ entry->state.okfn(entry->state.sk, skb);
local_bh_enable();
break;
case NF_QUEUE:
- err = nf_queue(skb, elem, entry->pf, entry->hook,
- entry->indev, entry->outdev, entry->okfn,
- verdict >> NF_VERDICT_QBITS);
+ err = nf_queue(skb, elem, &entry->state,
+ verdict >> NF_VERDICT_QBITS);
if (err < 0) {
if (err == -ECANCELED)
goto next_hook;
diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index 94e1aaf86070..628afc350c02 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -315,13 +315,13 @@ nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
if (entskb->tstamp.tv64)
size += nla_total_size(sizeof(struct nfqnl_msg_packet_timestamp));
- if (entry->hook <= NF_INET_FORWARD ||
- (entry->hook == NF_INET_POST_ROUTING && entskb->sk == NULL))
+ if (entry->state.hook <= NF_INET_FORWARD ||
+ (entry->state.hook == NF_INET_POST_ROUTING && entskb->sk == NULL))
csum_verify = !skb_csum_unnecessary(entskb);
else
csum_verify = false;
- outdev = entry->outdev;
+ outdev = entry->state.out;
switch ((enum nfqnl_config_mode)ACCESS_ONCE(queue->copy_mode)) {
case NFQNL_COPY_META:
@@ -369,23 +369,23 @@ nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
return NULL;
}
nfmsg = nlmsg_data(nlh);
- nfmsg->nfgen_family = entry->pf;
+ nfmsg->nfgen_family = entry->state.pf;
nfmsg->version = NFNETLINK_V0;
nfmsg->res_id = htons(queue->queue_num);
nla = __nla_reserve(skb, NFQA_PACKET_HDR, sizeof(*pmsg));
pmsg = nla_data(nla);
pmsg->hw_protocol = entskb->protocol;
- pmsg->hook = entry->hook;
+ pmsg->hook = entry->state.hook;
*packet_id_ptr = &pmsg->packet_id;
- indev = entry->indev;
+ indev = entry->state.in;
if (indev) {
#if !IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
if (nla_put_be32(skb, NFQA_IFINDEX_INDEV, htonl(indev->ifindex)))
goto nla_put_failure;
#else
- if (entry->pf == PF_BRIDGE) {
+ if (entry->state.pf == PF_BRIDGE) {
/* Case 1: indev is physical input device, we need to
* look for bridge group (when called from
* netfilter_bridge) */
@@ -419,7 +419,7 @@ nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
if (nla_put_be32(skb, NFQA_IFINDEX_OUTDEV, htonl(outdev->ifindex)))
goto nla_put_failure;
#else
- if (entry->pf == PF_BRIDGE) {
+ if (entry->state.pf == PF_BRIDGE) {
/* Case 1: outdev is physical output device, we need to
* look for bridge group (when called from
* netfilter_bridge) */
@@ -642,8 +642,8 @@ nfqnl_enqueue_packet(struct nf_queue_entry *entry, unsigned int queuenum)
struct nfqnl_instance *queue;
struct sk_buff *skb, *segs;
int err = -ENOBUFS;
- struct net *net = dev_net(entry->indev ?
- entry->indev : entry->outdev);
+ struct net *net = dev_net(entry->state.in ?
+ entry->state.in : entry->state.out);
struct nfnl_queue_net *q = nfnl_queue_pernet(net);
/* rcu_read_lock()ed by nf_hook_slow() */
@@ -656,7 +656,7 @@ nfqnl_enqueue_packet(struct nf_queue_entry *entry, unsigned int queuenum)
skb = entry->skb;
- switch (entry->pf) {
+ switch (entry->state.pf) {
case NFPROTO_IPV4:
skb->protocol = htons(ETH_P_IP);
break;
@@ -766,11 +766,11 @@ nfqnl_set_mode(struct nfqnl_instance *queue,
static int
dev_cmp(struct nf_queue_entry *entry, unsigned long ifindex)
{
- if (entry->indev)
- if (entry->indev->ifindex == ifindex)
+ if (entry->state.in)
+ if (entry->state.in->ifindex == ifindex)
return 1;
- if (entry->outdev)
- if (entry->outdev->ifindex == ifindex)
+ if (entry->state.out)
+ if (entry->state.out->ifindex == ifindex)
return 1;
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
if (entry->skb->nf_bridge) {
diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index 3277a7520e31..6d39766e7828 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -222,7 +222,8 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb)
{
struct net *net = ovs_dp_get_net(vport->dp);
struct vxlan_port *vxlan_port = vxlan_vport(vport);
- __be16 dst_port = inet_sk(vxlan_port->vs->sock->sk)->inet_sport;
+ struct sock *sk = vxlan_port->vs->sock->sk;
+ __be16 dst_port = inet_sk(sk)->inet_sport;
const struct ovs_key_ipv4_tunnel *tun_key;
struct vxlan_metadata md = {0};
struct rtable *rt;
@@ -255,7 +256,7 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb)
vxflags = vxlan_port->exts |
(tun_key->tun_flags & TUNNEL_CSUM ? VXLAN_F_UDP_CSUM : 0);
- err = vxlan_xmit_skb(rt, skb, fl.saddr, tun_key->ipv4_dst,
+ err = vxlan_xmit_skb(rt, sk, skb, fl.saddr, tun_key->ipv4_dst,
tun_key->ipv4_tos, tun_key->ipv4_ttl, df,
src_port, dst_port,
&md, false, vxflags);
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index ec2954ffc690..067a3fff1d2c 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -274,10 +274,8 @@ void ovs_vport_del(struct vport *vport)
ASSERT_OVSL();
hlist_del_rcu(&vport->hash_node);
-
- vport->ops->destroy(vport);
-
module_put(vport->ops->owner);
+ vport->ops->destroy(vport);
}
/**
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index dfcea20e3171..f377702d4b91 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -8,7 +8,7 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
- * Meant to be mostly used for localy generated traffic :
+ * Meant to be mostly used for locally generated traffic :
* Fast classification depends on skb->sk being set before reaching us.
* If not, (router workload), we use rxhash as fallback, with 32 bits wide hash.
* All packets belonging to a socket are considered as a 'flow'.
@@ -63,7 +63,7 @@ struct fq_flow {
struct sk_buff *tail; /* last skb in the list */
unsigned long age; /* jiffies when flow was emptied, for gc */
};
- struct rb_node fq_node; /* anchor in fq_root[] trees */
+ struct rb_node fq_node; /* anchor in fq_root[] trees */
struct sock *sk;
int qlen; /* number of packets in flow queue */
int credit;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 612aa73bbc60..e6ce1517367f 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -303,9 +303,7 @@ static int rpc_client_register(struct rpc_clnt *clnt,
struct super_block *pipefs_sb;
int err;
- err = rpc_clnt_debugfs_register(clnt);
- if (err)
- return err;
+ rpc_clnt_debugfs_register(clnt);
pipefs_sb = rpc_get_sb_net(net);
if (pipefs_sb) {
diff --git a/net/sunrpc/debugfs.c b/net/sunrpc/debugfs.c
index e811f390f9f6..82962f7e6e88 100644
--- a/net/sunrpc/debugfs.c
+++ b/net/sunrpc/debugfs.c
@@ -129,48 +129,52 @@ static const struct file_operations tasks_fops = {
.release = tasks_release,
};
-int
+void
rpc_clnt_debugfs_register(struct rpc_clnt *clnt)
{
- int len, err;
+ int len;
char name[24]; /* enough for "../../rpc_xprt/ + 8 hex digits + NULL */
+ struct rpc_xprt *xprt;
/* Already registered? */
- if (clnt->cl_debugfs)
- return 0;
+ if (clnt->cl_debugfs || !rpc_clnt_dir)
+ return;
len = snprintf(name, sizeof(name), "%x", clnt->cl_clid);
if (len >= sizeof(name))
- return -EINVAL;
+ return;
/* make the per-client dir */
clnt->cl_debugfs = debugfs_create_dir(name, rpc_clnt_dir);
if (!clnt->cl_debugfs)
- return -ENOMEM;
+ return;
/* make tasks file */
- err = -ENOMEM;
if (!debugfs_create_file("tasks", S_IFREG | S_IRUSR, clnt->cl_debugfs,
clnt, &tasks_fops))
goto out_err;
- err = -EINVAL;
rcu_read_lock();
+ xprt = rcu_dereference(clnt->cl_xprt);
+ /* no "debugfs" dentry? Don't bother with the symlink. */
+ if (!xprt->debugfs) {
+ rcu_read_unlock();
+ return;
+ }
len = snprintf(name, sizeof(name), "../../rpc_xprt/%s",
- rcu_dereference(clnt->cl_xprt)->debugfs->d_name.name);
+ xprt->debugfs->d_name.name);
rcu_read_unlock();
+
if (len >= sizeof(name))
goto out_err;
- err = -ENOMEM;
if (!debugfs_create_symlink("xprt", clnt->cl_debugfs, name))
goto out_err;
- return 0;
+ return;
out_err:
debugfs_remove_recursive(clnt->cl_debugfs);
clnt->cl_debugfs = NULL;
- return err;
}
void
@@ -226,33 +230,33 @@ static const struct file_operations xprt_info_fops = {
.release = xprt_info_release,
};
-int
+void
rpc_xprt_debugfs_register(struct rpc_xprt *xprt)
{
int len, id;
static atomic_t cur_id;
char name[9]; /* 8 hex digits + NULL term */
+ if (!rpc_xprt_dir)
+ return;
+
id = (unsigned int)atomic_inc_return(&cur_id);
len = snprintf(name, sizeof(name), "%x", id);
if (len >= sizeof(name))
- return -EINVAL;
+ return;
/* make the per-client dir */
xprt->debugfs = debugfs_create_dir(name, rpc_xprt_dir);
if (!xprt->debugfs)
- return -ENOMEM;
+ return;
/* make tasks file */
if (!debugfs_create_file("info", S_IFREG | S_IRUSR, xprt->debugfs,
xprt, &xprt_info_fops)) {
debugfs_remove_recursive(xprt->debugfs);
xprt->debugfs = NULL;
- return -ENOMEM;
}
-
- return 0;
}
void
@@ -266,14 +270,17 @@ void __exit
sunrpc_debugfs_exit(void)
{
debugfs_remove_recursive(topdir);
+ topdir = NULL;
+ rpc_clnt_dir = NULL;
+ rpc_xprt_dir = NULL;
}
-int __init
+void __init
sunrpc_debugfs_init(void)
{
topdir = debugfs_create_dir("sunrpc", NULL);
if (!topdir)
- goto out;
+ return;
rpc_clnt_dir = debugfs_create_dir("rpc_clnt", topdir);
if (!rpc_clnt_dir)
@@ -283,10 +290,9 @@ sunrpc_debugfs_init(void)
if (!rpc_xprt_dir)
goto out_remove;
- return 0;
+ return;
out_remove:
debugfs_remove_recursive(topdir);
topdir = NULL;
-out:
- return -ENOMEM;
+ rpc_clnt_dir = NULL;
}
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index e37fbed87956..ee5d3d253102 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -98,10 +98,7 @@ init_sunrpc(void)
if (err)
goto out4;
- err = sunrpc_debugfs_init();
- if (err)
- goto out5;
-
+ sunrpc_debugfs_init();
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
rpc_register_sysctl();
#endif
@@ -109,8 +106,6 @@ init_sunrpc(void)
init_socket_xprt(); /* clnt sock transport */
return 0;
-out5:
- unregister_rpc_pipefs();
out4:
unregister_pernet_subsys(&sunrpc_net_ops);
out3:
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index e3015aede0d9..9949722d99ce 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1331,7 +1331,6 @@ static void xprt_init(struct rpc_xprt *xprt, struct net *net)
*/
struct rpc_xprt *xprt_create_transport(struct xprt_create *args)
{
- int err;
struct rpc_xprt *xprt;
struct xprt_class *t;
@@ -1372,11 +1371,7 @@ found:
return ERR_PTR(-ENOMEM);
}
- err = rpc_xprt_debugfs_register(xprt);
- if (err) {
- xprt_destroy(xprt);
- return ERR_PTR(err);
- }
+ rpc_xprt_debugfs_register(xprt);
dprintk("RPC: created transport %p with %u slots\n", xprt,
xprt->max_reqs);
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index ae558dd7f8ee..c5cbdcb1f0b5 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -413,7 +413,7 @@ static void bclink_accept_pkt(struct tipc_node *node, u32 seqno)
*/
if (((seqno - tn->own_addr) % TIPC_MIN_LINK_WIN) == 0) {
tipc_link_proto_xmit(node->active_links[node->addr & 1],
- STATE_MSG, 0, 0, 0, 0, 0);
+ STATE_MSG, 0, 0, 0, 0);
tn->bcl->stats.sent_acks++;
}
}
@@ -899,7 +899,7 @@ int tipc_bclink_init(struct net *net)
skb_queue_head_init(&bclink->inputq);
bcl->owner = &bclink->node;
bcl->owner->net = net;
- bcl->max_pkt = MAX_PKT_DEFAULT_MCAST;
+ bcl->mtu = MAX_PKT_DEFAULT_MCAST;
tipc_link_set_queue_limits(bcl, BCLINK_WIN_DEFAULT);
bcl->bearer_id = MAX_BEARERS;
rcu_assign_pointer(tn->bearer_list[MAX_BEARERS], &bcbearer->bearer);
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 935205e6bcfe..be1c9fa60b09 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -152,11 +152,11 @@ out_netlink:
static void __exit tipc_exit(void)
{
tipc_bearer_cleanup();
+ unregister_pernet_subsys(&tipc_net_ops);
tipc_netlink_stop();
tipc_netlink_compat_stop();
tipc_socket_stop();
tipc_unregister_sysctl();
- unregister_pernet_subsys(&tipc_net_ops);
pr_info("Deactivated\n");
}
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 514466efc25c..a6b30df6ec02 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -89,24 +89,14 @@ static const struct nla_policy tipc_nl_prop_policy[TIPC_NLA_PROP_MAX + 1] = {
#define TIMEOUT_EVT 560817u /* link timer expired */
/*
- * The following two 'message types' is really just implementation
- * data conveniently stored in the message header.
- * They must not be considered part of the protocol
+ * State value stored in 'failover_pkts'
*/
-#define OPEN_MSG 0
-#define CLOSED_MSG 1
-
-/*
- * State value stored in 'exp_msg_count'
- */
-#define START_CHANGEOVER 100000u
+#define FIRST_FAILOVER 0xffffu
static void link_handle_out_of_seq_msg(struct tipc_link *link,
struct sk_buff *skb);
static void tipc_link_proto_rcv(struct tipc_link *link,
struct sk_buff *skb);
-static int tipc_link_tunnel_rcv(struct tipc_node *node,
- struct sk_buff **skb);
static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tol);
static void link_state_event(struct tipc_link *l_ptr, u32 event);
static void link_reset_statistics(struct tipc_link *l_ptr);
@@ -115,7 +105,7 @@ static void tipc_link_sync_xmit(struct tipc_link *l);
static void tipc_link_sync_rcv(struct tipc_node *n, struct sk_buff *buf);
static void tipc_link_input(struct tipc_link *l, struct sk_buff *skb);
static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb);
-
+static bool tipc_link_failover_rcv(struct tipc_link *l, struct sk_buff **skb);
/*
* Simple link routines
*/
@@ -146,34 +136,6 @@ static struct tipc_link *tipc_parallel_link(struct tipc_link *l)
return l->owner->active_links[1];
}
-static void link_init_max_pkt(struct tipc_link *l_ptr)
-{
- struct tipc_node *node = l_ptr->owner;
- struct tipc_net *tn = net_generic(node->net, tipc_net_id);
- struct tipc_bearer *b_ptr;
- u32 max_pkt;
-
- rcu_read_lock();
- b_ptr = rcu_dereference_rtnl(tn->bearer_list[l_ptr->bearer_id]);
- if (!b_ptr) {
- rcu_read_unlock();
- return;
- }
- max_pkt = (b_ptr->mtu & ~3);
- rcu_read_unlock();
-
- if (max_pkt > MAX_MSG_SIZE)
- max_pkt = MAX_MSG_SIZE;
-
- l_ptr->max_pkt_target = max_pkt;
- if (l_ptr->max_pkt_target < MAX_PKT_DEFAULT)
- l_ptr->max_pkt = l_ptr->max_pkt_target;
- else
- l_ptr->max_pkt = MAX_PKT_DEFAULT;
-
- l_ptr->max_pkt_probes = 0;
-}
-
/*
* Simple non-static link routines (i.e. referenced outside this file)
*/
@@ -314,7 +276,8 @@ struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
msg_set_bearer_id(msg, b_ptr->identity);
strcpy((char *)msg_data(msg), if_name);
l_ptr->net_plane = b_ptr->net_plane;
- link_init_max_pkt(l_ptr);
+ l_ptr->advertised_mtu = b_ptr->mtu;
+ l_ptr->mtu = l_ptr->advertised_mtu;
l_ptr->priority = b_ptr->priority;
tipc_link_set_queue_limits(l_ptr, b_ptr->window);
l_ptr->next_out_no = 1;
@@ -333,15 +296,19 @@ struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
}
/**
- * link_delete - Conditional deletion of link.
- * If timer still running, real delete is done when it expires
- * @link: link to be deleted
+ * tipc_link_delete - Delete a link
+ * @l: link to be deleted
*/
-void tipc_link_delete(struct tipc_link *link)
+void tipc_link_delete(struct tipc_link *l)
{
- tipc_link_reset_fragments(link);
- tipc_node_detach_link(link->owner, link);
- tipc_link_put(link);
+ tipc_link_reset(l);
+ if (del_timer(&l->timer))
+ tipc_link_put(l);
+ l->flags |= LINK_STOPPED;
+ /* Delete link now, or when timer is finished: */
+ tipc_link_reset_fragments(l);
+ tipc_node_detach_link(l->owner, l);
+ tipc_link_put(l);
}
void tipc_link_delete_list(struct net *net, unsigned int bearer_id,
@@ -350,23 +317,12 @@ void tipc_link_delete_list(struct net *net, unsigned int bearer_id,
struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_link *link;
struct tipc_node *node;
- bool del_link;
rcu_read_lock();
list_for_each_entry_rcu(node, &tn->node_list, list) {
tipc_node_lock(node);
link = node->links[bearer_id];
- if (!link) {
- tipc_node_unlock(node);
- continue;
- }
- del_link = !tipc_link_is_up(link) && !link->exp_msg_count;
- tipc_link_reset(link);
- if (del_timer(&link->timer))
- tipc_link_put(link);
- link->flags |= LINK_STOPPED;
- /* Delete link now, or when failover is finished: */
- if (shutting_down || !tipc_node_is_up(node) || del_link)
+ if (link)
tipc_link_delete(link);
tipc_node_unlock(node);
}
@@ -473,17 +429,17 @@ void tipc_link_purge_queues(struct tipc_link *l_ptr)
void tipc_link_reset(struct tipc_link *l_ptr)
{
u32 prev_state = l_ptr->state;
- u32 checkpoint = l_ptr->next_in_no;
int was_active_link = tipc_link_is_active(l_ptr);
struct tipc_node *owner = l_ptr->owner;
+ struct tipc_link *pl = tipc_parallel_link(l_ptr);
msg_set_session(l_ptr->pmsg, ((msg_session(l_ptr->pmsg) + 1) & 0xffff));
/* Link is down, accept any session */
l_ptr->peer_session = INVALID_SESSION;
- /* Prepare for max packet size negotiation */
- link_init_max_pkt(l_ptr);
+ /* Prepare for renewed mtu size negotiation */
+ l_ptr->mtu = l_ptr->advertised_mtu;
l_ptr->state = RESET_UNKNOWN;
@@ -493,11 +449,15 @@ void tipc_link_reset(struct tipc_link *l_ptr)
tipc_node_link_down(l_ptr->owner, l_ptr);
tipc_bearer_remove_dest(owner->net, l_ptr->bearer_id, l_ptr->addr);
- if (was_active_link && tipc_node_active_links(l_ptr->owner)) {
- l_ptr->reset_checkpoint = checkpoint;
- l_ptr->exp_msg_count = START_CHANGEOVER;
+ if (was_active_link && tipc_node_is_up(l_ptr->owner) && (pl != l_ptr)) {
+ l_ptr->flags |= LINK_FAILINGOVER;
+ l_ptr->failover_checkpt = l_ptr->next_in_no;
+ pl->failover_pkts = FIRST_FAILOVER;
+ pl->failover_checkpt = l_ptr->next_in_no;
+ pl->failover_skb = l_ptr->reasm_buf;
+ } else {
+ kfree_skb(l_ptr->reasm_buf);
}
-
/* Clean up all queues, except inputq: */
__skb_queue_purge(&l_ptr->transmq);
__skb_queue_purge(&l_ptr->deferdq);
@@ -507,6 +467,7 @@ void tipc_link_reset(struct tipc_link *l_ptr)
if (!skb_queue_empty(owner->inputq))
owner->action_flags |= TIPC_MSG_EVT;
tipc_link_purge_backlog(l_ptr);
+ l_ptr->reasm_buf = NULL;
l_ptr->rcv_unacked = 0;
l_ptr->checkpoint = 1;
l_ptr->next_out_no = 1;
@@ -558,8 +519,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
if (!(l_ptr->flags & LINK_STARTED) && (event != STARTING_EVT))
return; /* Not yet. */
- /* Check whether changeover is going on */
- if (l_ptr->exp_msg_count) {
+ if (l_ptr->flags & LINK_FAILINGOVER) {
if (event == TIMEOUT_EVT)
link_set_timer(l_ptr, cont_intv);
return;
@@ -576,11 +536,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->checkpoint = l_ptr->next_in_no;
if (tipc_bclink_acks_missing(l_ptr->owner)) {
tipc_link_proto_xmit(l_ptr, STATE_MSG,
- 0, 0, 0, 0, 0);
- l_ptr->fsm_msg_cnt++;
- } else if (l_ptr->max_pkt < l_ptr->max_pkt_target) {
- tipc_link_proto_xmit(l_ptr, STATE_MSG,
- 1, 0, 0, 0, 0);
+ 0, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
}
link_set_timer(l_ptr, cont_intv);
@@ -588,7 +544,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
}
l_ptr->state = WORKING_UNKNOWN;
l_ptr->fsm_msg_cnt = 0;
- tipc_link_proto_xmit(l_ptr, STATE_MSG, 1, 0, 0, 0, 0);
+ tipc_link_proto_xmit(l_ptr, STATE_MSG, 1, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv / 4);
break;
@@ -599,7 +555,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->state = RESET_RESET;
l_ptr->fsm_msg_cnt = 0;
tipc_link_proto_xmit(l_ptr, ACTIVATE_MSG,
- 0, 0, 0, 0, 0);
+ 0, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv);
break;
@@ -622,7 +578,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->state = RESET_RESET;
l_ptr->fsm_msg_cnt = 0;
tipc_link_proto_xmit(l_ptr, ACTIVATE_MSG,
- 0, 0, 0, 0, 0);
+ 0, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv);
break;
@@ -633,13 +589,13 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->checkpoint = l_ptr->next_in_no;
if (tipc_bclink_acks_missing(l_ptr->owner)) {
tipc_link_proto_xmit(l_ptr, STATE_MSG,
- 0, 0, 0, 0, 0);
+ 0, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
}
link_set_timer(l_ptr, cont_intv);
} else if (l_ptr->fsm_msg_cnt < l_ptr->abort_limit) {
tipc_link_proto_xmit(l_ptr, STATE_MSG,
- 1, 0, 0, 0, 0);
+ 1, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv / 4);
} else { /* Link has failed */
@@ -649,7 +605,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->state = RESET_UNKNOWN;
l_ptr->fsm_msg_cnt = 0;
tipc_link_proto_xmit(l_ptr, RESET_MSG,
- 0, 0, 0, 0, 0);
+ 0, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv);
}
@@ -669,7 +625,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->state = WORKING_WORKING;
l_ptr->fsm_msg_cnt = 0;
link_activate(l_ptr);
- tipc_link_proto_xmit(l_ptr, STATE_MSG, 1, 0, 0, 0, 0);
+ tipc_link_proto_xmit(l_ptr, STATE_MSG, 1, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
if (l_ptr->owner->working_links == 1)
tipc_link_sync_xmit(l_ptr);
@@ -679,7 +635,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->state = RESET_RESET;
l_ptr->fsm_msg_cnt = 0;
tipc_link_proto_xmit(l_ptr, ACTIVATE_MSG,
- 1, 0, 0, 0, 0);
+ 1, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv);
break;
@@ -689,7 +645,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
link_set_timer(l_ptr, cont_intv);
break;
case TIMEOUT_EVT:
- tipc_link_proto_xmit(l_ptr, RESET_MSG, 0, 0, 0, 0, 0);
+ tipc_link_proto_xmit(l_ptr, RESET_MSG, 0, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv);
break;
@@ -707,7 +663,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
l_ptr->state = WORKING_WORKING;
l_ptr->fsm_msg_cnt = 0;
link_activate(l_ptr);
- tipc_link_proto_xmit(l_ptr, STATE_MSG, 1, 0, 0, 0, 0);
+ tipc_link_proto_xmit(l_ptr, STATE_MSG, 1, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
if (l_ptr->owner->working_links == 1)
tipc_link_sync_xmit(l_ptr);
@@ -717,7 +673,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
break;
case TIMEOUT_EVT:
tipc_link_proto_xmit(l_ptr, ACTIVATE_MSG,
- 0, 0, 0, 0, 0);
+ 0, 0, 0, 0);
l_ptr->fsm_msg_cnt++;
link_set_timer(l_ptr, cont_intv);
break;
@@ -746,7 +702,7 @@ int __tipc_link_xmit(struct net *net, struct tipc_link *link,
struct tipc_msg *msg = buf_msg(skb_peek(list));
unsigned int maxwin = link->window;
unsigned int imp = msg_importance(msg);
- uint mtu = link->max_pkt;
+ uint mtu = link->mtu;
uint ack = mod(link->next_in_no - 1);
uint seqno = link->next_out_no;
uint bc_last_in = link->owner->bclink.last_in;
@@ -1200,7 +1156,7 @@ void tipc_rcv(struct net *net, struct sk_buff *skb, struct tipc_bearer *b_ptr)
link_retrieve_defq(l_ptr, &head);
if (unlikely(++l_ptr->rcv_unacked >= TIPC_MIN_LINK_WIN)) {
l_ptr->stats.sent_acks++;
- tipc_link_proto_xmit(l_ptr, STATE_MSG, 0, 0, 0, 0, 0);
+ tipc_link_proto_xmit(l_ptr, STATE_MSG, 0, 0, 0, 0);
}
tipc_link_input(l_ptr, skb);
skb = NULL;
@@ -1243,7 +1199,7 @@ static bool tipc_data_input(struct tipc_link *link, struct sk_buff *skb)
node->action_flags |= TIPC_NAMED_MSG_EVT;
return true;
case MSG_BUNDLER:
- case CHANGEOVER_PROTOCOL:
+ case TUNNEL_PROTOCOL:
case MSG_FRAGMENTER:
case BCAST_PROTOCOL:
return false;
@@ -1270,12 +1226,14 @@ static void tipc_link_input(struct tipc_link *link, struct sk_buff *skb)
return;
switch (msg_user(msg)) {
- case CHANGEOVER_PROTOCOL:
+ case TUNNEL_PROTOCOL:
if (msg_dup(msg)) {
link->flags |= LINK_SYNCHING;
link->synch_point = msg_seqno(msg_get_wrapped(msg));
+ kfree_skb(skb);
+ break;
}
- if (!tipc_link_tunnel_rcv(node, &skb))
+ if (!tipc_link_failover_rcv(link, &skb))
break;
if (msg_user(buf_msg(skb)) != MSG_BUNDLER) {
tipc_data_input(link, skb);
@@ -1373,7 +1331,7 @@ static void link_handle_out_of_seq_msg(struct tipc_link *l_ptr,
if (tipc_link_defer_pkt(&l_ptr->deferdq, buf)) {
l_ptr->stats.deferred_recv++;
if ((skb_queue_len(&l_ptr->deferdq) % TIPC_MIN_LINK_WIN) == 1)
- tipc_link_proto_xmit(l_ptr, STATE_MSG, 0, 0, 0, 0, 0);
+ tipc_link_proto_xmit(l_ptr, STATE_MSG, 0, 0, 0, 0);
} else {
l_ptr->stats.duplicates++;
}
@@ -1383,15 +1341,15 @@ static void link_handle_out_of_seq_msg(struct tipc_link *l_ptr,
* Send protocol message to the other endpoint.
*/
void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int probe_msg,
- u32 gap, u32 tolerance, u32 priority, u32 ack_mtu)
+ u32 gap, u32 tolerance, u32 priority)
{
struct sk_buff *buf = NULL;
struct tipc_msg *msg = l_ptr->pmsg;
u32 msg_size = sizeof(l_ptr->proto_msg);
int r_flag;
- /* Don't send protocol message during link changeover */
- if (l_ptr->exp_msg_count)
+ /* Don't send protocol message during link failover */
+ if (l_ptr->flags & LINK_FAILINGOVER)
return;
/* Abort non-RESET send if communication with node is prohibited */
@@ -1421,35 +1379,20 @@ void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int probe_msg,
l_ptr->stats.sent_nacks++;
msg_set_link_tolerance(msg, tolerance);
msg_set_linkprio(msg, priority);
- msg_set_max_pkt(msg, ack_mtu);
+ msg_set_max_pkt(msg, l_ptr->mtu);
msg_set_ack(msg, mod(l_ptr->next_in_no - 1));
msg_set_probe(msg, probe_msg != 0);
- if (probe_msg) {
- u32 mtu = l_ptr->max_pkt;
-
- if ((mtu < l_ptr->max_pkt_target) &&
- link_working_working(l_ptr) &&
- l_ptr->fsm_msg_cnt) {
- msg_size = (mtu + (l_ptr->max_pkt_target - mtu)/2 + 2) & ~3;
- if (l_ptr->max_pkt_probes == 10) {
- l_ptr->max_pkt_target = (msg_size - 4);
- l_ptr->max_pkt_probes = 0;
- msg_size = (mtu + (l_ptr->max_pkt_target - mtu)/2 + 2) & ~3;
- }
- l_ptr->max_pkt_probes++;
- }
-
+ if (probe_msg)
l_ptr->stats.sent_probes++;
- }
l_ptr->stats.sent_states++;
} else { /* RESET_MSG or ACTIVATE_MSG */
- msg_set_ack(msg, mod(l_ptr->reset_checkpoint - 1));
+ msg_set_ack(msg, mod(l_ptr->failover_checkpt - 1));
msg_set_seq_gap(msg, 0);
msg_set_next_sent(msg, 1);
msg_set_probe(msg, 0);
msg_set_link_tolerance(msg, l_ptr->tolerance);
msg_set_linkprio(msg, l_ptr->priority);
- msg_set_max_pkt(msg, l_ptr->max_pkt_target);
+ msg_set_max_pkt(msg, l_ptr->advertised_mtu);
}
r_flag = (l_ptr->owner->working_links > tipc_link_is_up(l_ptr));
@@ -1480,13 +1423,10 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr,
struct sk_buff *buf)
{
u32 rec_gap = 0;
- u32 max_pkt_info;
- u32 max_pkt_ack;
u32 msg_tol;
struct tipc_msg *msg = buf_msg(buf);
- /* Discard protocol message during link changeover */
- if (l_ptr->exp_msg_count)
+ if (l_ptr->flags & LINK_FAILINGOVER)
goto exit;
if (l_ptr->net_plane != msg_net_plane(msg))
@@ -1525,15 +1465,8 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr,
if (msg_linkprio(msg) > l_ptr->priority)
l_ptr->priority = msg_linkprio(msg);
- max_pkt_info = msg_max_pkt(msg);
- if (max_pkt_info) {
- if (max_pkt_info < l_ptr->max_pkt_target)
- l_ptr->max_pkt_target = max_pkt_info;
- if (l_ptr->max_pkt > l_ptr->max_pkt_target)
- l_ptr->max_pkt = l_ptr->max_pkt_target;
- } else {
- l_ptr->max_pkt = l_ptr->max_pkt_target;
- }
+ if (l_ptr->mtu > msg_max_pkt(msg))
+ l_ptr->mtu = msg_max_pkt(msg);
/* Synchronize broadcast link info, if not done previously */
if (!tipc_node_is_up(l_ptr->owner)) {
@@ -1578,18 +1511,8 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr,
mod(l_ptr->next_in_no));
}
- max_pkt_ack = msg_max_pkt(msg);
- if (max_pkt_ack > l_ptr->max_pkt) {
- l_ptr->max_pkt = max_pkt_ack;
- l_ptr->max_pkt_probes = 0;
- }
-
- max_pkt_ack = 0;
- if (msg_probe(msg)) {
+ if (msg_probe(msg))
l_ptr->stats.recv_probes++;
- if (msg_size(msg) > sizeof(l_ptr->proto_msg))
- max_pkt_ack = msg_size(msg);
- }
/* Protocol message before retransmits, reduce loss risk */
if (l_ptr->owner->bclink.recv_permitted)
@@ -1597,8 +1520,8 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr,
msg_last_bcast(msg));
if (rec_gap || (msg_probe(msg))) {
- tipc_link_proto_xmit(l_ptr, STATE_MSG, 0, rec_gap, 0,
- 0, max_pkt_ack);
+ tipc_link_proto_xmit(l_ptr, STATE_MSG, 0,
+ rec_gap, 0, 0);
}
if (msg_seq_gap(msg)) {
l_ptr->stats.recv_nacks++;
@@ -1658,8 +1581,8 @@ void tipc_link_failover_send_queue(struct tipc_link *l_ptr)
if (!tunnel)
return;
- tipc_msg_init(link_own_addr(l_ptr), &tunnel_hdr, CHANGEOVER_PROTOCOL,
- ORIGINAL_MSG, INT_H_SIZE, l_ptr->addr);
+ tipc_msg_init(link_own_addr(l_ptr), &tunnel_hdr, TUNNEL_PROTOCOL,
+ FAILOVER_MSG, INT_H_SIZE, l_ptr->addr);
skb_queue_splice_tail_init(&l_ptr->backlogq, &l_ptr->transmq);
tipc_link_purge_backlog(l_ptr);
msgcount = skb_queue_len(&l_ptr->transmq);
@@ -1721,8 +1644,8 @@ void tipc_link_dup_queue_xmit(struct tipc_link *link,
struct sk_buff_head *queue = &link->transmq;
int mcnt;
- tipc_msg_init(link_own_addr(link), &tnl_hdr, CHANGEOVER_PROTOCOL,
- DUPLICATE_MSG, INT_H_SIZE, link->addr);
+ tipc_msg_init(link_own_addr(link), &tnl_hdr, TUNNEL_PROTOCOL,
+ SYNCH_MSG, INT_H_SIZE, link->addr);
mcnt = skb_queue_len(&link->transmq) + skb_queue_len(&link->backlogq);
msg_set_msgcnt(&tnl_hdr, mcnt);
msg_set_bearer_id(&tnl_hdr, link->peer_bearer_id);
@@ -1755,101 +1678,63 @@ tunnel_queue:
goto tunnel_queue;
}
-/* tipc_link_dup_rcv(): Receive a tunnelled DUPLICATE_MSG packet.
- * Owner node is locked.
- */
-static void tipc_link_dup_rcv(struct tipc_link *link,
- struct sk_buff *skb)
-{
- struct sk_buff *iskb;
- int pos = 0;
-
- if (!tipc_link_is_up(link))
- return;
-
- if (!tipc_msg_extract(skb, &iskb, &pos)) {
- pr_warn("%sfailed to extract inner dup pkt\n", link_co_err);
- return;
- }
- /* Append buffer to deferred queue, if applicable: */
- link_handle_out_of_seq_msg(link, iskb);
-}
-
-/* tipc_link_failover_rcv(): Receive a tunnelled ORIGINAL_MSG packet
+/* tipc_link_failover_rcv(): Receive a tunnelled FAILOVER_MSG packet
* Owner node is locked.
*/
-static struct sk_buff *tipc_link_failover_rcv(struct tipc_link *l_ptr,
- struct sk_buff *t_buf)
+static bool tipc_link_failover_rcv(struct tipc_link *link,
+ struct sk_buff **skb)
{
- struct tipc_msg *t_msg = buf_msg(t_buf);
- struct sk_buff *buf = NULL;
- struct tipc_msg *msg;
+ struct tipc_msg *msg = buf_msg(*skb);
+ struct sk_buff *iskb = NULL;
+ struct tipc_link *pl = NULL;
+ int bearer_id = msg_bearer_id(msg);
int pos = 0;
- if (tipc_link_is_up(l_ptr))
- tipc_link_reset(l_ptr);
-
- /* First failover packet? */
- if (l_ptr->exp_msg_count == START_CHANGEOVER)
- l_ptr->exp_msg_count = msg_msgcnt(t_msg);
-
- /* Should there be an inner packet? */
- if (l_ptr->exp_msg_count) {
- l_ptr->exp_msg_count--;
- if (!tipc_msg_extract(t_buf, &buf, &pos)) {
- pr_warn("%sno inner failover pkt\n", link_co_err);
- goto exit;
- }
- msg = buf_msg(buf);
-
- if (less(msg_seqno(msg), l_ptr->reset_checkpoint)) {
- kfree_skb(buf);
- buf = NULL;
- goto exit;
- }
- if (msg_user(msg) == MSG_FRAGMENTER) {
- l_ptr->stats.recv_fragments++;
- tipc_buf_append(&l_ptr->reasm_buf, &buf);
- }
+ if (msg_type(msg) != FAILOVER_MSG) {
+ pr_warn("%sunknown tunnel pkt received\n", link_co_err);
+ goto exit;
}
-exit:
- if ((!l_ptr->exp_msg_count) && (l_ptr->flags & LINK_STOPPED))
- tipc_link_delete(l_ptr);
- return buf;
-}
+ if (bearer_id >= MAX_BEARERS)
+ goto exit;
-/* tipc_link_tunnel_rcv(): Receive a tunnelled packet, sent
- * via other link as result of a failover (ORIGINAL_MSG) or
- * a new active link (DUPLICATE_MSG). Failover packets are
- * returned to the active link for delivery upwards.
- * Owner node is locked.
- */
-static int tipc_link_tunnel_rcv(struct tipc_node *n_ptr,
- struct sk_buff **buf)
-{
- struct sk_buff *t_buf = *buf;
- struct tipc_link *l_ptr;
- struct tipc_msg *t_msg = buf_msg(t_buf);
- u32 bearer_id = msg_bearer_id(t_msg);
+ if (bearer_id == link->bearer_id)
+ goto exit;
- *buf = NULL;
+ pl = link->owner->links[bearer_id];
+ if (pl && tipc_link_is_up(pl))
+ tipc_link_reset(pl);
- if (bearer_id >= MAX_BEARERS)
+ if (link->failover_pkts == FIRST_FAILOVER)
+ link->failover_pkts = msg_msgcnt(msg);
+
+ /* Should we expect an inner packet? */
+ if (!link->failover_pkts)
goto exit;
- l_ptr = n_ptr->links[bearer_id];
- if (!l_ptr)
+ if (!tipc_msg_extract(*skb, &iskb, &pos)) {
+ pr_warn("%sno inner failover pkt\n", link_co_err);
+ *skb = NULL;
goto exit;
+ }
+ link->failover_pkts--;
+ *skb = NULL;
- if (msg_type(t_msg) == DUPLICATE_MSG)
- tipc_link_dup_rcv(l_ptr, t_buf);
- else if (msg_type(t_msg) == ORIGINAL_MSG)
- *buf = tipc_link_failover_rcv(l_ptr, t_buf);
- else
- pr_warn("%sunknown tunnel pkt received\n", link_co_err);
+ /* Was this packet already delivered? */
+ if (less(buf_seqno(iskb), link->failover_checkpt)) {
+ kfree_skb(iskb);
+ iskb = NULL;
+ goto exit;
+ }
+ if (msg_user(buf_msg(iskb)) == MSG_FRAGMENTER) {
+ link->stats.recv_fragments++;
+ tipc_buf_append(&link->failover_skb, &iskb);
+ }
exit:
- kfree_skb(t_buf);
- return *buf != NULL;
+ if (!link->failover_pkts && pl)
+ pl->flags &= ~LINK_FAILINGOVER;
+ kfree_skb(*skb);
+ *skb = iskb;
+ return *skb;
}
static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tol)
@@ -1866,7 +1751,7 @@ static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tol)
void tipc_link_set_queue_limits(struct tipc_link *l, u32 win)
{
- int max_bulk = TIPC_MAX_PUBLICATIONS / (l->max_pkt / ITEM_SIZE);
+ int max_bulk = TIPC_MAX_PUBLICATIONS / (l->mtu / ITEM_SIZE);
l->window = win;
l->backlog[TIPC_LOW_IMPORTANCE].limit = win / 2;
@@ -2038,14 +1923,14 @@ int tipc_nl_link_set(struct sk_buff *skb, struct genl_info *info)
tol = nla_get_u32(props[TIPC_NLA_PROP_TOL]);
link_set_supervision_props(link, tol);
- tipc_link_proto_xmit(link, STATE_MSG, 0, 0, tol, 0, 0);
+ tipc_link_proto_xmit(link, STATE_MSG, 0, 0, tol, 0);
}
if (props[TIPC_NLA_PROP_PRIO]) {
u32 prio;
prio = nla_get_u32(props[TIPC_NLA_PROP_PRIO]);
link->priority = prio;
- tipc_link_proto_xmit(link, STATE_MSG, 0, 0, 0, prio, 0);
+ tipc_link_proto_xmit(link, STATE_MSG, 0, 0, 0, prio);
}
if (props[TIPC_NLA_PROP_WIN]) {
u32 win;
@@ -2150,7 +2035,7 @@ static int __tipc_nl_add_link(struct net *net, struct tipc_nl_msg *msg,
if (nla_put_u32(msg->skb, TIPC_NLA_LINK_DEST,
tipc_cluster_mask(tn->own_addr)))
goto attr_msg_full;
- if (nla_put_u32(msg->skb, TIPC_NLA_LINK_MTU, link->max_pkt))
+ if (nla_put_u32(msg->skb, TIPC_NLA_LINK_MTU, link->mtu))
goto attr_msg_full;
if (nla_put_u32(msg->skb, TIPC_NLA_LINK_RX, link->next_in_no))
goto attr_msg_full;
diff --git a/net/tipc/link.h b/net/tipc/link.h
index d2b5663643da..b5b4e3554d4e 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -58,9 +58,10 @@
/* Link endpoint execution states
*/
-#define LINK_STARTED 0x0001
-#define LINK_STOPPED 0x0002
-#define LINK_SYNCHING 0x0004
+#define LINK_STARTED 0x0001
+#define LINK_STOPPED 0x0002
+#define LINK_SYNCHING 0x0004
+#define LINK_FAILINGOVER 0x0008
/* Starting value for maximum packet size negotiation on unicast links
* (unless bearer MTU is less)
@@ -122,9 +123,8 @@ struct tipc_stats {
* @backlog_limit: backlog queue congestion thresholds (indexed by importance)
* @exp_msg_count: # of tunnelled messages expected during link changeover
* @reset_checkpoint: seq # of last acknowledged message at time of link reset
- * @max_pkt: current maximum packet size for this link
- * @max_pkt_target: desired maximum packet size for this link
- * @max_pkt_probes: # of probes based on current (max_pkt, max_pkt_target)
+ * @mtu: current maximum packet size for this link
+ * @advertised_mtu: advertised own mtu when link is being established
* @transmitq: queue for sent, non-acked messages
* @backlogq: queue for messages waiting to be sent
* @next_out_no: next sequence number to use for outbound messages
@@ -167,16 +167,16 @@ struct tipc_link {
struct tipc_msg *pmsg;
u32 priority;
char net_plane;
+ u16 synch_point;
- /* Changeover */
- u32 exp_msg_count;
- u32 reset_checkpoint;
- u32 synch_point;
+ /* Failover */
+ u16 failover_pkts;
+ u16 failover_checkpt;
+ struct sk_buff *failover_skb;
/* Max packet negotiation */
- u32 max_pkt;
- u32 max_pkt_target;
- u32 max_pkt_probes;
+ u16 mtu;
+ u16 advertised_mtu;
/* Sending */
struct sk_buff_head transmq;
@@ -201,7 +201,6 @@ struct tipc_link {
struct sk_buff_head wakeupq;
/* Fragmentation/reassembly */
- u32 long_msg_seq_no;
struct sk_buff *reasm_buf;
/* Statistics */
@@ -232,7 +231,7 @@ int tipc_link_xmit(struct net *net, struct sk_buff_head *list, u32 dest,
int __tipc_link_xmit(struct net *net, struct tipc_link *link,
struct sk_buff_head *list);
void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int prob,
- u32 gap, u32 tolerance, u32 priority, u32 acked_mtu);
+ u32 gap, u32 tolerance, u32 priority);
void tipc_link_push_packets(struct tipc_link *l_ptr);
u32 tipc_link_defer_pkt(struct sk_buff_head *list, struct sk_buff *buf);
void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window);
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 3bb499c61918..c3e96e815418 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -355,7 +355,7 @@ bool tipc_msg_bundle(struct sk_buff *bskb, struct sk_buff *skb, u32 mtu)
start = align(bsz);
pad = start - bsz;
- if (unlikely(msg_user(msg) == CHANGEOVER_PROTOCOL))
+ if (unlikely(msg_user(msg) == TUNNEL_PROTOCOL))
return false;
if (unlikely(msg_user(msg) == BCAST_PROTOCOL))
return false;
@@ -433,7 +433,7 @@ bool tipc_msg_make_bundle(struct sk_buff **skb, u32 mtu, u32 dnode)
if (msg_user(msg) == MSG_FRAGMENTER)
return false;
- if (msg_user(msg) == CHANGEOVER_PROTOCOL)
+ if (msg_user(msg) == TUNNEL_PROTOCOL)
return false;
if (msg_user(msg) == BCAST_PROTOCOL)
return false;
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index d273207ede28..e1d3595e2ee9 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -72,7 +72,7 @@ struct plist;
#define MSG_BUNDLER 6
#define LINK_PROTOCOL 7
#define CONN_MANAGER 8
-#define CHANGEOVER_PROTOCOL 10
+#define TUNNEL_PROTOCOL 10
#define NAME_DISTRIBUTOR 11
#define MSG_FRAGMENTER 12
#define LINK_CONFIG 13
@@ -512,8 +512,8 @@ static inline void msg_set_nameupper(struct tipc_msg *m, u32 n)
/*
* Changeover tunnel message types
*/
-#define DUPLICATE_MSG 0
-#define ORIGINAL_MSG 1
+#define SYNCH_MSG 0
+#define FAILOVER_MSG 1
/*
* Config protocol message types
@@ -556,9 +556,9 @@ static inline void msg_set_node_capabilities(struct tipc_msg *m, u32 n)
static inline bool msg_dup(struct tipc_msg *m)
{
- if (likely(msg_user(m) != CHANGEOVER_PROTOCOL))
+ if (likely(msg_user(m) != TUNNEL_PROTOCOL))
return false;
- if (msg_type(m) != DUPLICATE_MSG)
+ if (msg_type(m) != SYNCH_MSG)
return false;
return true;
}
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 3e4f04897c03..22c059ad2999 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -254,8 +254,8 @@ void tipc_node_link_up(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
active[0] = active[1] = l_ptr;
exit:
/* Leave room for changeover header when returning 'mtu' to users: */
- n_ptr->act_mtus[0] = active[0]->max_pkt - INT_H_SIZE;
- n_ptr->act_mtus[1] = active[1]->max_pkt - INT_H_SIZE;
+ n_ptr->act_mtus[0] = active[0]->mtu - INT_H_SIZE;
+ n_ptr->act_mtus[1] = active[1]->mtu - INT_H_SIZE;
}
/**
@@ -319,11 +319,10 @@ void tipc_node_link_down(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
/* Leave room for changeover header when returning 'mtu' to users: */
if (active[0]) {
- n_ptr->act_mtus[0] = active[0]->max_pkt - INT_H_SIZE;
- n_ptr->act_mtus[1] = active[1]->max_pkt - INT_H_SIZE;
+ n_ptr->act_mtus[0] = active[0]->mtu - INT_H_SIZE;
+ n_ptr->act_mtus[1] = active[1]->mtu - INT_H_SIZE;
return;
}
-
/* Loopback link went down? No fragmentation needed from now on. */
if (n_ptr->addr == tn->own_addr) {
n_ptr->act_mtus[0] = MAX_MSG_SIZE;
@@ -394,18 +393,17 @@ static void node_lost_contact(struct tipc_node *n_ptr)
n_ptr->bclink.recv_permitted = false;
}
- /* Abort link changeover */
+ /* Abort any ongoing link failover */
for (i = 0; i < MAX_BEARERS; i++) {
struct tipc_link *l_ptr = n_ptr->links[i];
if (!l_ptr)
continue;
- l_ptr->reset_checkpoint = l_ptr->next_in_no;
- l_ptr->exp_msg_count = 0;
+ l_ptr->flags &= ~LINK_FAILINGOVER;
+ l_ptr->failover_checkpt = 0;
+ l_ptr->failover_pkts = 0;
+ kfree_skb(l_ptr->failover_skb);
+ l_ptr->failover_skb = NULL;
tipc_link_reset_fragments(l_ptr);
-
- /* Link marked for deletion after failover? => do it now */
- if (l_ptr->flags & LINK_STOPPED)
- tipc_link_delete(l_ptr);
}
n_ptr->action_flags &= ~TIPC_WAIT_OWN_LINKS_DOWN;
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index ef3d7aa2854a..66deebc66aa1 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -176,7 +176,8 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
goto tx_error;
}
ttl = ip4_dst_hoplimit(&rt->dst);
- err = udp_tunnel_xmit_skb(rt, clone, src->ipv4.s_addr,
+ err = udp_tunnel_xmit_skb(rt, ub->ubsock->sk, clone,
+ src->ipv4.s_addr,
dst->ipv4.s_addr, 0, ttl, 0,
src->udp_port, dst->udp_port,
false, true);
@@ -197,7 +198,8 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
if (err)
goto tx_error;
ttl = ip6_dst_hoplimit(ndst);
- err = udp_tunnel6_xmit_skb(ndst, clone, ndst->dev, &src->ipv6,
+ err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, clone,
+ ndst->dev, &src->ipv6,
&dst->ipv6, 0, ttl, src->udp_port,
dst->udp_port, false);
#endif
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 7c532856b398..fbcedbe33190 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -19,7 +19,7 @@
#include <net/dst.h>
#include <net/xfrm.h>
-static int xfrm_output2(struct sk_buff *skb);
+static int xfrm_output2(struct sock *sk, struct sk_buff *skb);
static int xfrm_skb_check_space(struct sk_buff *skb)
{
@@ -130,7 +130,7 @@ int xfrm_output_resume(struct sk_buff *skb, int err)
return dst_output(skb);
err = nf_hook(skb_dst(skb)->ops->family,
- NF_INET_POST_ROUTING, skb,
+ NF_INET_POST_ROUTING, skb->sk, skb,
NULL, skb_dst(skb)->dev, xfrm_output2);
if (unlikely(err != 1))
goto out;
@@ -144,12 +144,12 @@ out:
}
EXPORT_SYMBOL_GPL(xfrm_output_resume);
-static int xfrm_output2(struct sk_buff *skb)
+static int xfrm_output2(struct sock *sk, struct sk_buff *skb)
{
return xfrm_output_resume(skb, 1);
}
-static int xfrm_output_gso(struct sk_buff *skb)
+static int xfrm_output_gso(struct sock *sk, struct sk_buff *skb)
{
struct sk_buff *segs;
@@ -165,7 +165,7 @@ static int xfrm_output_gso(struct sk_buff *skb)
int err;
segs->next = NULL;
- err = xfrm_output2(segs);
+ err = xfrm_output2(sk, segs);
if (unlikely(err)) {
kfree_skb_list(nskb);
@@ -178,13 +178,13 @@ static int xfrm_output_gso(struct sk_buff *skb)
return 0;
}
-int xfrm_output(struct sk_buff *skb)
+int xfrm_output(struct sock *sk, struct sk_buff *skb)
{
struct net *net = dev_net(skb_dst(skb)->dev);
int err;
if (skb_is_gso(skb))
- return xfrm_output_gso(skb);
+ return xfrm_output_gso(sk, skb);
if (skb->ip_summed == CHECKSUM_PARTIAL) {
err = skb_checksum_help(skb);
@@ -195,7 +195,7 @@ int xfrm_output(struct sk_buff *skb)
}
}
- return xfrm_output2(skb);
+ return xfrm_output2(sk, skb);
}
EXPORT_SYMBOL_GPL(xfrm_output);

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