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authorEric Dumazet <edumazet@google.com>2015-03-24 15:58:55 -0700
committerDavid S. Miller <davem@davemloft.net>2015-03-24 21:16:30 -0400
commit39f8e58e53be32ab758d30536e0bd2e6ce766462 (patch)
tree2256b441433a11337077f2f82534903c9e52fefa /net/ipv6/tcp_ipv6.c
parentff74e23f7edb3759d1290b10f80222e3bbb6304b (diff)
tcp: md5: remove request sock argument of calc_md5_hash()
Since request and established sockets now have same base, there is no need to pass two pointers to tcp_v4_md5_hash_skb() or tcp_v6_md5_hash_skb() Also add a const qualifier to their struct tcp_md5sig_key argument. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 078e7d0f4cd8..57d1c41404ec 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -582,9 +582,9 @@ clear_hash_noput:
return 1;
}
-static int tcp_v6_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
+static int tcp_v6_md5_hash_skb(char *md5_hash,
+ const struct tcp_md5sig_key *key,
const struct sock *sk,
- const struct request_sock *req,
const struct sk_buff *skb)
{
const struct in6_addr *saddr, *daddr;
@@ -592,12 +592,9 @@ static int tcp_v6_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
struct hash_desc *desc;
const struct tcphdr *th = tcp_hdr(skb);
- if (sk) {
- saddr = &inet6_sk(sk)->saddr;
+ if (sk) { /* valid for establish/request sockets */
+ saddr = &sk->sk_v6_rcv_saddr;
daddr = &sk->sk_v6_daddr;
- } else if (req) {
- saddr = &inet_rsk(req)->ir_v6_loc_addr;
- daddr = &inet_rsk(req)->ir_v6_rmt_addr;
} else {
const struct ipv6hdr *ip6h = ipv6_hdr(skb);
saddr = &ip6h->saddr;
@@ -662,7 +659,7 @@ static bool tcp_v6_inbound_md5_hash(struct sock *sk, const struct sk_buff *skb)
/* check the signature */
genhash = tcp_v6_md5_hash_skb(newhash,
hash_expected,
- NULL, NULL, skb);
+ NULL, skb);
if (genhash || memcmp(hash_location, newhash, 16) != 0) {
net_info_ratelimited("MD5 Hash %s for [%pI6c]:%u->[%pI6c]:%u\n",
@@ -880,7 +877,7 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
if (!key)
goto release_sk1;
- genhash = tcp_v6_md5_hash_skb(newhash, key, NULL, NULL, skb);
+ genhash = tcp_v6_md5_hash_skb(newhash, key, NULL, skb);
if (genhash || memcmp(hash_location, newhash, 16) != 0)
goto release_sk1;
} else {

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