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authorAlexander Aring <alex.aring@gmail.com>2014-12-31 19:39:10 +0100
committerMarcel Holtmann <marcel@holtmann.org>2015-01-03 01:49:24 +0100
commit78f821b648267d3ee1a63093cd0c41cc99b97727 (patch)
treeea8b300e8f080c392210f2050c35ef1ba93e3076 /net/ieee802154/raw.c
parent79300e3a438f93c7431b4bf40fa18580ccb34be1 (diff)
ieee802154: socket: put handling into one file
This patch puts all related socket handling into one file. This is just a cleanup to do all socket handling stuff inside of one implementation file. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/ieee802154/raw.c')
-rw-r--r--net/ieee802154/raw.c270
1 files changed, 0 insertions, 270 deletions
diff --git a/net/ieee802154/raw.c b/net/ieee802154/raw.c
deleted file mode 100644
index 1674b115c891..000000000000
--- a/net/ieee802154/raw.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- * Raw IEEE 802.15.4 sockets
- *
- * Copyright 2007, 2008 Siemens AG
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Written by:
- * Sergey Lapin <slapin@ossfans.org>
- * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
- */
-
-#include <linux/net.h>
-#include <linux/module.h>
-#include <linux/if_arp.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <net/sock.h>
-#include <net/af_ieee802154.h>
-#include <net/ieee802154_netdev.h>
-
-#include "af802154.h"
-
-static HLIST_HEAD(raw_head);
-static DEFINE_RWLOCK(raw_lock);
-
-static void raw_hash(struct sock *sk)
-{
- write_lock_bh(&raw_lock);
- sk_add_node(sk, &raw_head);
- sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
- write_unlock_bh(&raw_lock);
-}
-
-static void raw_unhash(struct sock *sk)
-{
- write_lock_bh(&raw_lock);
- if (sk_del_node_init(sk))
- sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
- write_unlock_bh(&raw_lock);
-}
-
-static void raw_close(struct sock *sk, long timeout)
-{
- sk_common_release(sk);
-}
-
-static int raw_bind(struct sock *sk, struct sockaddr *_uaddr, int len)
-{
- struct ieee802154_addr addr;
- struct sockaddr_ieee802154 *uaddr = (struct sockaddr_ieee802154 *)_uaddr;
- int err = 0;
- struct net_device *dev = NULL;
-
- if (len < sizeof(*uaddr))
- return -EINVAL;
-
- uaddr = (struct sockaddr_ieee802154 *)_uaddr;
- if (uaddr->family != AF_IEEE802154)
- return -EINVAL;
-
- lock_sock(sk);
-
- ieee802154_addr_from_sa(&addr, &uaddr->addr);
- dev = ieee802154_get_dev(sock_net(sk), &addr);
- if (!dev) {
- err = -ENODEV;
- goto out;
- }
-
- if (dev->type != ARPHRD_IEEE802154) {
- err = -ENODEV;
- goto out_put;
- }
-
- sk->sk_bound_dev_if = dev->ifindex;
- sk_dst_reset(sk);
-
-out_put:
- dev_put(dev);
-out:
- release_sock(sk);
-
- return err;
-}
-
-static int raw_connect(struct sock *sk, struct sockaddr *uaddr,
- int addr_len)
-{
- return -ENOTSUPP;
-}
-
-static int raw_disconnect(struct sock *sk, int flags)
-{
- return 0;
-}
-
-static int raw_sendmsg(struct kiocb *iocb, struct sock *sk,
- struct msghdr *msg, size_t size)
-{
- struct net_device *dev;
- unsigned int mtu;
- struct sk_buff *skb;
- int hlen, tlen;
- int err;
-
- if (msg->msg_flags & MSG_OOB) {
- pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
- return -EOPNOTSUPP;
- }
-
- lock_sock(sk);
- if (!sk->sk_bound_dev_if)
- dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
- else
- dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if);
- release_sock(sk);
-
- if (!dev) {
- pr_debug("no dev\n");
- err = -ENXIO;
- goto out;
- }
-
- mtu = dev->mtu;
- pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
-
- if (size > mtu) {
- pr_debug("size = %Zu, mtu = %u\n", size, mtu);
- err = -EINVAL;
- goto out_dev;
- }
-
- hlen = LL_RESERVED_SPACE(dev);
- tlen = dev->needed_tailroom;
- skb = sock_alloc_send_skb(sk, hlen + tlen + size,
- msg->msg_flags & MSG_DONTWAIT, &err);
- if (!skb)
- goto out_dev;
-
- skb_reserve(skb, hlen);
-
- skb_reset_mac_header(skb);
- skb_reset_network_header(skb);
-
- err = memcpy_from_msg(skb_put(skb, size), msg, size);
- if (err < 0)
- goto out_skb;
-
- skb->dev = dev;
- skb->sk = sk;
- skb->protocol = htons(ETH_P_IEEE802154);
-
- dev_put(dev);
-
- err = dev_queue_xmit(skb);
- if (err > 0)
- err = net_xmit_errno(err);
-
- return err ?: size;
-
-out_skb:
- kfree_skb(skb);
-out_dev:
- dev_put(dev);
-out:
- return err;
-}
-
-static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- size_t len, int noblock, int flags, int *addr_len)
-{
- size_t copied = 0;
- int err = -EOPNOTSUPP;
- struct sk_buff *skb;
-
- skb = skb_recv_datagram(sk, flags, noblock, &err);
- if (!skb)
- goto out;
-
- copied = skb->len;
- if (len < copied) {
- msg->msg_flags |= MSG_TRUNC;
- copied = len;
- }
-
- err = skb_copy_datagram_msg(skb, 0, msg, copied);
- if (err)
- goto done;
-
- sock_recv_ts_and_drops(msg, sk, skb);
-
- if (flags & MSG_TRUNC)
- copied = skb->len;
-done:
- skb_free_datagram(sk, skb);
-out:
- if (err)
- return err;
- return copied;
-}
-
-static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
-{
- skb = skb_share_check(skb, GFP_ATOMIC);
- if (!skb)
- return NET_RX_DROP;
-
- if (sock_queue_rcv_skb(sk, skb) < 0) {
- kfree_skb(skb);
- return NET_RX_DROP;
- }
-
- return NET_RX_SUCCESS;
-}
-
-void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb)
-{
- struct sock *sk;
-
- read_lock(&raw_lock);
- sk_for_each(sk, &raw_head) {
- bh_lock_sock(sk);
- if (!sk->sk_bound_dev_if ||
- sk->sk_bound_dev_if == dev->ifindex) {
- struct sk_buff *clone;
-
- clone = skb_clone(skb, GFP_ATOMIC);
- if (clone)
- raw_rcv_skb(sk, clone);
- }
- bh_unlock_sock(sk);
- }
- read_unlock(&raw_lock);
-}
-
-static int raw_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen)
-{
- return -EOPNOTSUPP;
-}
-
-static int raw_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen)
-{
- return -EOPNOTSUPP;
-}
-
-struct proto ieee802154_raw_prot = {
- .name = "IEEE-802.15.4-RAW",
- .owner = THIS_MODULE,
- .obj_size = sizeof(struct sock),
- .close = raw_close,
- .bind = raw_bind,
- .sendmsg = raw_sendmsg,
- .recvmsg = raw_recvmsg,
- .hash = raw_hash,
- .unhash = raw_unhash,
- .connect = raw_connect,
- .disconnect = raw_disconnect,
- .getsockopt = raw_getsockopt,
- .setsockopt = raw_setsockopt,
-};

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