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net/ieee802154/socket.c
23.4 KB
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/* * IEEE802154.4 socket interface * * 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. * |
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* Written by: * Sergey Lapin <slapin@ossfans.org> * Maxim Gorbachyov <maxim.gorbachev@siemens.com> */ #include <linux/net.h> #include <linux/capability.h> #include <linux/module.h> #include <linux/if_arp.h> #include <linux/if.h> #include <linux/termios.h> /* For TIOCOUTQ/INQ */ #include <linux/list.h> |
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#include <linux/slab.h> |
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#include <net/datalink.h> #include <net/psnap.h> #include <net/sock.h> #include <net/tcp_states.h> #include <net/route.h> |
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#include <net/af_ieee802154.h> #include <net/ieee802154_netdev.h> |
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/* Utility function for families */ |
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static struct net_device* |
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ieee802154_get_dev(struct net *net, const struct ieee802154_addr *addr) |
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{ struct net_device *dev = NULL; struct net_device *tmp; |
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__le16 pan_id, short_addr; |
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u8 hwaddr[IEEE802154_ADDR_LEN]; |
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|
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switch (addr->mode) { |
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case IEEE802154_ADDR_LONG: |
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ieee802154_devaddr_to_raw(hwaddr, addr->extended_addr); |
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rcu_read_lock(); |
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dev = dev_getbyhwaddr_rcu(net, ARPHRD_IEEE802154, hwaddr); |
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if (dev) dev_hold(dev); |
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rcu_read_unlock(); |
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break; case IEEE802154_ADDR_SHORT: |
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if (addr->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST) || addr->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) || |
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addr->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) |
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break; rtnl_lock(); for_each_netdev(net, tmp) { if (tmp->type != ARPHRD_IEEE802154) continue; |
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pan_id = tmp->ieee802154_ptr->pan_id; short_addr = tmp->ieee802154_ptr->short_addr; |
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if (pan_id == addr->pan_id && short_addr == addr->short_addr) { |
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dev = tmp; dev_hold(dev); break; } } rtnl_unlock(); break; default: |
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pr_warn("Unsupported ieee802154 address type: %d ", addr->mode); |
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break; } return dev; } static int ieee802154_sock_release(struct socket *sock) { struct sock *sk = sock->sk; if (sk) { sock->sk = NULL; sk->sk_prot->close(sk, 0); } return 0; } |
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static int ieee802154_sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) |
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{ struct sock *sk = sock->sk; |
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return sk->sk_prot->sendmsg(sk, msg, len); |
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} static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr, |
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int addr_len) |
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{ struct sock *sk = sock->sk; if (sk->sk_prot->bind) return sk->sk_prot->bind(sk, uaddr, addr_len); return sock_no_bind(sock, uaddr, addr_len); } static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr, |
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int addr_len, int flags) |
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{ struct sock *sk = sock->sk; |
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if (addr_len < sizeof(uaddr->sa_family)) return -EINVAL; |
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if (uaddr->sa_family == AF_UNSPEC) return sk->sk_prot->disconnect(sk, flags); return sk->sk_prot->connect(sk, uaddr, addr_len); } static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg, |
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unsigned int cmd) |
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{ struct ifreq ifr; |
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int ret = -ENOIOCTLCMD; |
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struct net_device *dev; if (copy_from_user(&ifr, arg, sizeof(struct ifreq))) return -EFAULT; ifr.ifr_name[IFNAMSIZ-1] = 0; dev_load(sock_net(sk), ifr.ifr_name); dev = dev_get_by_name(sock_net(sk), ifr.ifr_name); |
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if (!dev) return -ENODEV; |
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if (dev->type == ARPHRD_IEEE802154 && dev->netdev_ops->ndo_do_ioctl) |
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ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd); if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq))) ret = -EFAULT; dev_put(dev); return ret; } static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd, |
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unsigned long arg) |
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{ struct sock *sk = sock->sk; switch (cmd) { case SIOCGSTAMP: return sock_get_timestamp(sk, (struct timeval __user *)arg); case SIOCGSTAMPNS: return sock_get_timestampns(sk, (struct timespec __user *)arg); case SIOCGIFADDR: case SIOCSIFADDR: return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg, cmd); default: if (!sk->sk_prot->ioctl) return -ENOIOCTLCMD; return sk->sk_prot->ioctl(sk, cmd, arg); } } |
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/* RAW Sockets (802.15.4 created in userspace) */ static HLIST_HEAD(raw_head); static DEFINE_RWLOCK(raw_lock); |
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static int raw_hash(struct sock *sk) |
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{ 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); |
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return 0; |
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} 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; } |
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sk->sk_bound_dev_if = dev->ifindex; sk_dst_reset(sk); |
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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; } |
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static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) |
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{ 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 ", 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 "); err = -ENXIO; goto out; } |
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mtu = IEEE802154_MTU; |
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pr_debug("name = %s, mtu = %u ", dev->name, mtu); if (size > mtu) { |
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pr_debug("size = %zu, mtu = %u ", size, mtu); |
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err = -EMSGSIZE; |
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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; } |
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static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock, int flags, int *addr_len) |
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{ 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; } static 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; } static 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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static const struct proto_ops ieee802154_raw_ops = { .family = PF_IEEE802154, .owner = THIS_MODULE, .release = ieee802154_sock_release, .bind = ieee802154_sock_bind, .connect = ieee802154_sock_connect, .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, .poll = datagram_poll, .ioctl = ieee802154_sock_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_common_setsockopt, .getsockopt = sock_common_getsockopt, .sendmsg = ieee802154_sock_sendmsg, .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_setsockopt = compat_sock_common_setsockopt, .compat_getsockopt = compat_sock_common_getsockopt, #endif }; |
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/* DGRAM Sockets (802.15.4 dataframes) */ static HLIST_HEAD(dgram_head); static DEFINE_RWLOCK(dgram_lock); struct dgram_sock { struct sock sk; struct ieee802154_addr src_addr; struct ieee802154_addr dst_addr; unsigned int bound:1; unsigned int connected:1; unsigned int want_ack:1; unsigned int secen:1; unsigned int secen_override:1; unsigned int seclevel:3; unsigned int seclevel_override:1; }; static inline struct dgram_sock *dgram_sk(const struct sock *sk) { return container_of(sk, struct dgram_sock, sk); } |
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static int dgram_hash(struct sock *sk) |
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{ write_lock_bh(&dgram_lock); sk_add_node(sk, &dgram_head); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); write_unlock_bh(&dgram_lock); |
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return 0; |
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} static void dgram_unhash(struct sock *sk) { write_lock_bh(&dgram_lock); if (sk_del_node_init(sk)) sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); write_unlock_bh(&dgram_lock); } static int dgram_init(struct sock *sk) { struct dgram_sock *ro = dgram_sk(sk); ro->want_ack = 1; return 0; } static void dgram_close(struct sock *sk, long timeout) { sk_common_release(sk); } static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len) { struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr; struct ieee802154_addr haddr; struct dgram_sock *ro = dgram_sk(sk); int err = -EINVAL; struct net_device *dev; lock_sock(sk); ro->bound = 0; if (len < sizeof(*addr)) goto out; if (addr->family != AF_IEEE802154) goto out; ieee802154_addr_from_sa(&haddr, &addr->addr); dev = ieee802154_get_dev(sock_net(sk), &haddr); if (!dev) { err = -ENODEV; goto out; } if (dev->type != ARPHRD_IEEE802154) { err = -ENODEV; goto out_put; } ro->src_addr = haddr; ro->bound = 1; err = 0; out_put: dev_put(dev); out: release_sock(sk); return err; } static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg) { switch (cmd) { case SIOCOUTQ: { int amount = sk_wmem_alloc_get(sk); return put_user(amount, (int __user *)arg); } case SIOCINQ: { struct sk_buff *skb; unsigned long amount; amount = 0; spin_lock_bh(&sk->sk_receive_queue.lock); skb = skb_peek(&sk->sk_receive_queue); |
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if (skb) { |
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/* We will only return the amount * of this packet since that is all * that will be read. */ amount = skb->len - ieee802154_hdr_length(skb); } spin_unlock_bh(&sk->sk_receive_queue.lock); return put_user(amount, (int __user *)arg); } } return -ENOIOCTLCMD; } /* FIXME: autobind */ static int dgram_connect(struct sock *sk, struct sockaddr *uaddr, int len) { struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr; struct dgram_sock *ro = dgram_sk(sk); int err = 0; if (len < sizeof(*addr)) return -EINVAL; if (addr->family != AF_IEEE802154) return -EINVAL; lock_sock(sk); if (!ro->bound) { err = -ENETUNREACH; goto out; } ieee802154_addr_from_sa(&ro->dst_addr, &addr->addr); ro->connected = 1; out: release_sock(sk); return err; } static int dgram_disconnect(struct sock *sk, int flags) { struct dgram_sock *ro = dgram_sk(sk); lock_sock(sk); ro->connected = 0; release_sock(sk); return 0; } |
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static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) |
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{ struct net_device *dev; unsigned int mtu; struct sk_buff *skb; struct ieee802154_mac_cb *cb; struct dgram_sock *ro = dgram_sk(sk); struct ieee802154_addr dst_addr; int hlen, tlen; int err; if (msg->msg_flags & MSG_OOB) { pr_debug("msg->msg_flags = 0x%x ", msg->msg_flags); return -EOPNOTSUPP; } if (!ro->connected && !msg->msg_name) return -EDESTADDRREQ; else if (ro->connected && msg->msg_name) return -EISCONN; if (!ro->bound) dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154); else dev = ieee802154_get_dev(sock_net(sk), &ro->src_addr); if (!dev) { pr_debug("no dev "); err = -ENXIO; goto out; } |
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mtu = IEEE802154_MTU; |
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pr_debug("name = %s, mtu = %u ", dev->name, mtu); if (size > mtu) { |
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pr_debug("size = %zu, mtu = %u ", size, mtu); |
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err = -EMSGSIZE; 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_network_header(skb); cb = mac_cb_init(skb); cb->type = IEEE802154_FC_TYPE_DATA; cb->ackreq = ro->want_ack; if (msg->msg_name) { DECLARE_SOCKADDR(struct sockaddr_ieee802154*, daddr, msg->msg_name); ieee802154_addr_from_sa(&dst_addr, &daddr->addr); } else { dst_addr = ro->dst_addr; } cb->secen = ro->secen; cb->secen_override = ro->secen_override; cb->seclevel = ro->seclevel; cb->seclevel_override = ro->seclevel_override; |
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err = wpan_dev_hard_header(skb, dev, &dst_addr, ro->bound ? &ro->src_addr : NULL, size); |
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if (err < 0) goto out_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; } |
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static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock, int flags, int *addr_len) |
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{ size_t copied = 0; int err = -EOPNOTSUPP; struct sk_buff *skb; DECLARE_SOCKADDR(struct sockaddr_ieee802154 *, saddr, msg->msg_name); 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; } /* FIXME: skip headers if necessary ?! */ err = skb_copy_datagram_msg(skb, 0, msg, copied); if (err) goto done; sock_recv_ts_and_drops(msg, sk, skb); if (saddr) { |
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/* Clear the implicit padding in struct sockaddr_ieee802154 * (16 bits between 'family' and 'addr') and in struct * ieee802154_addr_sa (16 bits at the end of the structure). */ memset(saddr, 0, sizeof(*saddr)); |
78f821b64 ieee802154: socke... |
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saddr->family = AF_IEEE802154; ieee802154_addr_to_sa(&saddr->addr, &mac_cb(skb)->source); *addr_len = sizeof(*saddr); } if (flags & MSG_TRUNC) copied = skb->len; done: skb_free_datagram(sk, skb); out: if (err) return err; return copied; } static int dgram_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; } static inline bool ieee802154_match_sock(__le64 hw_addr, __le16 pan_id, __le16 short_addr, struct dgram_sock *ro) { if (!ro->bound) return true; if (ro->src_addr.mode == IEEE802154_ADDR_LONG && hw_addr == ro->src_addr.extended_addr) return true; if (ro->src_addr.mode == IEEE802154_ADDR_SHORT && pan_id == ro->src_addr.pan_id && short_addr == ro->src_addr.short_addr) return true; return false; } static int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb) { struct sock *sk, *prev = NULL; int ret = NET_RX_SUCCESS; __le16 pan_id, short_addr; __le64 hw_addr; /* Data frame processing */ BUG_ON(dev->type != ARPHRD_IEEE802154); |
c947f7e1e mac802154: remove... |
790 791 792 |
pan_id = dev->ieee802154_ptr->pan_id; short_addr = dev->ieee802154_ptr->short_addr; hw_addr = dev->ieee802154_ptr->extended_addr; |
78f821b64 ieee802154: socke... |
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read_lock(&dgram_lock); sk_for_each(sk, &dgram_head) { if (ieee802154_match_sock(hw_addr, pan_id, short_addr, dgram_sk(sk))) { if (prev) { struct sk_buff *clone; clone = skb_clone(skb, GFP_ATOMIC); if (clone) dgram_rcv_skb(prev, clone); } prev = sk; } } if (prev) { dgram_rcv_skb(prev, skb); } else { kfree_skb(skb); ret = NET_RX_DROP; } read_unlock(&dgram_lock); return ret; } static int dgram_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { struct dgram_sock *ro = dgram_sk(sk); int val, len; if (level != SOL_IEEE802154) return -EOPNOTSUPP; if (get_user(len, optlen)) return -EFAULT; len = min_t(unsigned int, len, sizeof(int)); switch (optname) { case WPAN_WANTACK: val = ro->want_ack; break; case WPAN_SECURITY: if (!ro->secen_override) val = WPAN_SECURITY_DEFAULT; else if (ro->secen) val = WPAN_SECURITY_ON; else val = WPAN_SECURITY_OFF; break; case WPAN_SECURITY_LEVEL: if (!ro->seclevel_override) val = WPAN_SECURITY_LEVEL_DEFAULT; else val = ro->seclevel; break; default: return -ENOPROTOOPT; } if (put_user(len, optlen)) return -EFAULT; if (copy_to_user(optval, &val, len)) return -EFAULT; return 0; } static int dgram_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { struct dgram_sock *ro = dgram_sk(sk); struct net *net = sock_net(sk); int val; int err = 0; if (optlen < sizeof(int)) return -EINVAL; if (get_user(val, (int __user *)optval)) return -EFAULT; lock_sock(sk); switch (optname) { case WPAN_WANTACK: ro->want_ack = !!val; break; case WPAN_SECURITY: if (!ns_capable(net->user_ns, CAP_NET_ADMIN) && !ns_capable(net->user_ns, CAP_NET_RAW)) { err = -EPERM; break; } switch (val) { case WPAN_SECURITY_DEFAULT: ro->secen_override = 0; break; case WPAN_SECURITY_ON: ro->secen_override = 1; ro->secen = 1; break; case WPAN_SECURITY_OFF: ro->secen_override = 1; ro->secen = 0; break; default: err = -EINVAL; break; } break; case WPAN_SECURITY_LEVEL: if (!ns_capable(net->user_ns, CAP_NET_ADMIN) && !ns_capable(net->user_ns, CAP_NET_RAW)) { err = -EPERM; break; } if (val < WPAN_SECURITY_LEVEL_DEFAULT || val > IEEE802154_SCF_SECLEVEL_ENC_MIC128) { err = -EINVAL; } else if (val == WPAN_SECURITY_LEVEL_DEFAULT) { ro->seclevel_override = 0; } else { ro->seclevel_override = 1; ro->seclevel = val; } break; default: err = -ENOPROTOOPT; break; } release_sock(sk); return err; } static struct proto ieee802154_dgram_prot = { .name = "IEEE-802.15.4-MAC", .owner = THIS_MODULE, .obj_size = sizeof(struct dgram_sock), .init = dgram_init, .close = dgram_close, .bind = dgram_bind, .sendmsg = dgram_sendmsg, .recvmsg = dgram_recvmsg, .hash = dgram_hash, .unhash = dgram_unhash, .connect = dgram_connect, .disconnect = dgram_disconnect, .ioctl = dgram_ioctl, .getsockopt = dgram_getsockopt, .setsockopt = dgram_setsockopt, }; |
9ec767160 net: add IEEE 802... |
952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 |
static const struct proto_ops ieee802154_dgram_ops = { .family = PF_IEEE802154, .owner = THIS_MODULE, .release = ieee802154_sock_release, .bind = ieee802154_sock_bind, .connect = ieee802154_sock_connect, .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, .poll = datagram_poll, .ioctl = ieee802154_sock_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_common_setsockopt, .getsockopt = sock_common_getsockopt, .sendmsg = ieee802154_sock_sendmsg, .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_setsockopt = compat_sock_common_setsockopt, .compat_getsockopt = compat_sock_common_getsockopt, #endif }; |
4710d806f 6lowpan: mac80215... |
976 |
/* Create a socket. Initialise the socket, blank the addresses |
9ec767160 net: add IEEE 802... |
977 978 979 |
* set the state. */ static int ieee802154_create(struct net *net, struct socket *sock, |
3f378b684 net: pass kern to... |
980 |
int protocol, int kern) |
9ec767160 net: add IEEE 802... |
981 982 983 984 985 |
{ struct sock *sk; int rc; struct proto *proto; const struct proto_ops *ops; |
09ad9bc75 net: use net_eq t... |
986 |
if (!net_eq(net, &init_net)) |
9ec767160 net: add IEEE 802... |
987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 |
return -EAFNOSUPPORT; switch (sock->type) { case SOCK_RAW: proto = &ieee802154_raw_prot; ops = &ieee802154_raw_ops; break; case SOCK_DGRAM: proto = &ieee802154_dgram_prot; ops = &ieee802154_dgram_ops; break; default: rc = -ESOCKTNOSUPPORT; goto out; } rc = -ENOMEM; |
11aa9c28b net: Pass kern fr... |
1004 |
sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto, kern); |
9ec767160 net: add IEEE 802... |
1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 |
if (!sk) goto out; rc = 0; sock->ops = ops; sock_init_data(sock, sk); /* FIXME: sk->sk_destruct */ sk->sk_family = PF_IEEE802154; /* Checksums on by default */ sock_set_flag(sk, SOCK_ZAPPED); |
086c653f5 sock: struct prot... |
1017 1018 1019 1020 1021 1022 1023 |
if (sk->sk_prot->hash) { rc = sk->sk_prot->hash(sk); if (rc) { sk_common_release(sk); goto out; } } |
9ec767160 net: add IEEE 802... |
1024 1025 1026 1027 1028 1029 1030 1031 1032 |
if (sk->sk_prot->init) { rc = sk->sk_prot->init(sk); if (rc) sk_common_release(sk); } out: return rc; } |
ec1b4cf74 net: mark net_pro... |
1033 |
static const struct net_proto_family ieee802154_family_ops = { |
9ec767160 net: add IEEE 802... |
1034 1035 1036 1037 1038 1039 |
.family = PF_IEEE802154, .create = ieee802154_create, .owner = THIS_MODULE, }; static int ieee802154_rcv(struct sk_buff *skb, struct net_device *dev, |
4710d806f 6lowpan: mac80215... |
1040 |
struct packet_type *pt, struct net_device *orig_dev) |
9ec767160 net: add IEEE 802... |
1041 |
{ |
9ec767160 net: add IEEE 802... |
1042 |
if (!netif_running(dev)) |
fa1da8835 ieee802154: free ... |
1043 |
goto drop; |
9ec767160 net: add IEEE 802... |
1044 1045 |
pr_debug("got frame, type %d, dev %p ", dev->type, dev); |
25502bda0 ieee802154: use s... |
1046 |
#ifdef DEBUG |
4710d806f 6lowpan: mac80215... |
1047 1048 |
print_hex_dump_bytes("ieee802154_rcv ", DUMP_PREFIX_NONE, skb->data, skb->len); |
25502bda0 ieee802154: use s... |
1049 |
#endif |
9ec767160 net: add IEEE 802... |
1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 |
if (!net_eq(dev_net(dev), &init_net)) goto drop; ieee802154_raw_deliver(dev, skb); if (dev->type != ARPHRD_IEEE802154) goto drop; if (skb->pkt_type != PACKET_OTHERHOST) return ieee802154_dgram_deliver(dev, skb); drop: kfree_skb(skb); return NET_RX_DROP; } |
9ec767160 net: add IEEE 802... |
1066 |
static struct packet_type ieee802154_packet_type = { |
ec633eb5f ieee802154: Conve... |
1067 |
.type = htons(ETH_P_IEEE802154), |
9ec767160 net: add IEEE 802... |
1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 |
.func = ieee802154_rcv, }; static int __init af_ieee802154_init(void) { int rc = -EINVAL; rc = proto_register(&ieee802154_raw_prot, 1); if (rc) goto out; rc = proto_register(&ieee802154_dgram_prot, 1); if (rc) goto err_dgram; /* Tell SOCKET that we are alive */ rc = sock_register(&ieee802154_family_ops); if (rc) goto err_sock; dev_add_pack(&ieee802154_packet_type); rc = 0; goto out; err_sock: proto_unregister(&ieee802154_dgram_prot); err_dgram: proto_unregister(&ieee802154_raw_prot); out: return rc; } |
6c10dc05b net/ieee802154: R... |
1099 |
|
9ec767160 net: add IEEE 802... |
1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 |
static void __exit af_ieee802154_remove(void) { dev_remove_pack(&ieee802154_packet_type); sock_unregister(PF_IEEE802154); proto_unregister(&ieee802154_dgram_prot); proto_unregister(&ieee802154_raw_prot); } module_init(af_ieee802154_init); module_exit(af_ieee802154_remove); MODULE_LICENSE("GPL"); MODULE_ALIAS_NETPROTO(PF_IEEE802154); |