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net/bluetooth/sco.c
20.7 KB
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/* |
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BlueZ - Bluetooth protocol stack for Linux Copyright (C) 2000-2001 Qualcomm Incorporated Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 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; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY |
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
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SOFTWARE IS DISCLAIMED. */ /* Bluetooth SCO sockets. */ |
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#include <linux/module.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/kernel.h> |
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#include <linux/sched.h> #include <linux/slab.h> #include <linux/poll.h> #include <linux/fcntl.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/socket.h> #include <linux/skbuff.h> |
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#include <linux/device.h> |
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#include <linux/debugfs.h> #include <linux/seq_file.h> |
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#include <linux/list.h> |
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#include <linux/security.h> |
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#include <net/sock.h> #include <asm/system.h> |
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#include <linux/uaccess.h> |
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#include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include <net/bluetooth/sco.h> |
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static bool disable_esco; |
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|
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static const struct proto_ops sco_sock_ops; |
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static struct bt_sock_list sco_sk_list = { |
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.lock = __RW_LOCK_UNLOCKED(sco_sk_list.lock) |
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}; static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent); static void sco_chan_del(struct sock *sk, int err); static int sco_conn_del(struct hci_conn *conn, int err); static void sco_sock_close(struct sock *sk); static void sco_sock_kill(struct sock *sk); /* ---- SCO timers ---- */ static void sco_sock_timeout(unsigned long arg) { struct sock *sk = (struct sock *) arg; BT_DBG("sock %p state %d", sk, sk->sk_state); bh_lock_sock(sk); sk->sk_err = ETIMEDOUT; sk->sk_state_change(sk); bh_unlock_sock(sk); sco_sock_kill(sk); sock_put(sk); } static void sco_sock_set_timer(struct sock *sk, long timeout) { BT_DBG("sock %p state %d timeout %ld", sk, sk->sk_state, timeout); sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout); } static void sco_sock_clear_timer(struct sock *sk) { BT_DBG("sock %p state %d", sk, sk->sk_state); sk_stop_timer(sk, &sk->sk_timer); } |
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/* ---- SCO connections ---- */ static struct sco_conn *sco_conn_add(struct hci_conn *hcon, __u8 status) { struct hci_dev *hdev = hcon->hdev; |
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struct sco_conn *conn = hcon->sco_data; |
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|
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if (conn || status) |
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return conn; |
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conn = kzalloc(sizeof(struct sco_conn), GFP_ATOMIC); if (!conn) |
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return NULL; |
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spin_lock_init(&conn->lock); hcon->sco_data = conn; conn->hcon = hcon; conn->src = &hdev->bdaddr; conn->dst = &hcon->dst; if (hdev->sco_mtu > 0) conn->mtu = hdev->sco_mtu; else conn->mtu = 60; BT_DBG("hcon %p conn %p", hcon, conn); |
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|
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return conn; } static inline struct sock *sco_chan_get(struct sco_conn *conn) { struct sock *sk = NULL; sco_conn_lock(conn); sk = conn->sk; sco_conn_unlock(conn); return sk; } static int sco_conn_del(struct hci_conn *hcon, int err) { |
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struct sco_conn *conn = hcon->sco_data; |
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struct sock *sk; |
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if (!conn) |
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return 0; BT_DBG("hcon %p conn %p, err %d", hcon, conn, err); /* Kill socket */ |
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sk = sco_chan_get(conn); if (sk) { |
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bh_lock_sock(sk); sco_sock_clear_timer(sk); sco_chan_del(sk, err); bh_unlock_sock(sk); sco_sock_kill(sk); } hcon->sco_data = NULL; kfree(conn); return 0; } static inline int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) { int err = 0; sco_conn_lock(conn); |
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if (conn->sk) |
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err = -EBUSY; |
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else |
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__sco_chan_add(conn, sk, parent); |
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|
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sco_conn_unlock(conn); return err; } static int sco_connect(struct sock *sk) { bdaddr_t *src = &bt_sk(sk)->src; bdaddr_t *dst = &bt_sk(sk)->dst; struct sco_conn *conn; struct hci_conn *hcon; struct hci_dev *hdev; |
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int err, type; |
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BT_DBG("%s -> %s", batostr(src), batostr(dst)); |
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hdev = hci_get_route(dst, src); if (!hdev) |
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return -EHOSTUNREACH; |
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hci_dev_lock(hdev); |
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|
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if (lmp_esco_capable(hdev) && !disable_esco) type = ESCO_LINK; else type = SCO_LINK; |
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hcon = hci_connect(hdev, type, dst, BT_SECURITY_LOW, HCI_AT_NO_BONDING); |
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if (IS_ERR(hcon)) { err = PTR_ERR(hcon); |
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goto done; |
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} |
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conn = sco_conn_add(hcon, 0); if (!conn) { hci_conn_put(hcon); |
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err = -ENOMEM; |
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goto done; } /* Update source addr of the socket */ bacpy(src, conn->src); err = sco_chan_add(conn, sk, NULL); if (err) goto done; if (hcon->state == BT_CONNECTED) { sco_sock_clear_timer(sk); sk->sk_state = BT_CONNECTED; } else { sk->sk_state = BT_CONNECT; sco_sock_set_timer(sk, sk->sk_sndtimeo); } |
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|
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done: |
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hci_dev_unlock(hdev); |
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hci_dev_put(hdev); return err; } static inline int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) { struct sco_conn *conn = sco_pi(sk)->conn; struct sk_buff *skb; int err, count; /* Check outgoing MTU */ if (len > conn->mtu) return -EINVAL; BT_DBG("sk %p len %d", sk, len); count = min_t(unsigned int, conn->mtu, len); |
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skb = bt_skb_send_alloc(sk, count, msg->msg_flags & MSG_DONTWAIT, &err); if (!skb) |
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return err; if (memcpy_fromiovec(skb_put(skb, count), msg->msg_iov, count)) { |
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kfree_skb(skb); return -EFAULT; |
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} |
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hci_send_sco(conn->hcon, skb); |
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return count; |
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} static inline void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb) { struct sock *sk = sco_chan_get(conn); if (!sk) goto drop; BT_DBG("sk %p len %d", sk, skb->len); if (sk->sk_state != BT_CONNECTED) goto drop; if (!sock_queue_rcv_skb(sk, skb)) return; drop: kfree_skb(skb); |
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} /* -------- Socket interface ---------- */ static struct sock *__sco_get_sock_by_addr(bdaddr_t *ba) { struct sock *sk; struct hlist_node *node; sk_for_each(sk, node, &sco_sk_list.head) if (!bacmp(&bt_sk(sk)->src, ba)) goto found; sk = NULL; found: return sk; } /* Find socket listening on source bdaddr. * Returns closest match. */ static struct sock *sco_get_sock_listen(bdaddr_t *src) { struct sock *sk = NULL, *sk1 = NULL; struct hlist_node *node; read_lock(&sco_sk_list.lock); sk_for_each(sk, node, &sco_sk_list.head) { if (sk->sk_state != BT_LISTEN) continue; /* Exact match. */ if (!bacmp(&bt_sk(sk)->src, src)) break; /* Closest match */ if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) sk1 = sk; } read_unlock(&sco_sk_list.lock); return node ? sk : sk1; } static void sco_sock_destruct(struct sock *sk) { BT_DBG("sk %p", sk); skb_queue_purge(&sk->sk_receive_queue); skb_queue_purge(&sk->sk_write_queue); } static void sco_sock_cleanup_listen(struct sock *parent) { struct sock *sk; BT_DBG("parent %p", parent); /* Close not yet accepted channels */ while ((sk = bt_accept_dequeue(parent, NULL))) { sco_sock_close(sk); sco_sock_kill(sk); } parent->sk_state = BT_CLOSED; sock_set_flag(parent, SOCK_ZAPPED); } /* Kill socket (only if zapped and orphan) * Must be called on unlocked socket. */ static void sco_sock_kill(struct sock *sk) { if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket) return; BT_DBG("sk %p state %d", sk, sk->sk_state); /* Kill poor orphan */ bt_sock_unlink(&sco_sk_list, sk); sock_set_flag(sk, SOCK_DEAD); sock_put(sk); } |
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static void __sco_sock_close(struct sock *sk) |
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{ |
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BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket); |
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switch (sk->sk_state) { case BT_LISTEN: sco_sock_cleanup_listen(sk); break; case BT_CONNECTED: case BT_CONFIG: |
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if (sco_pi(sk)->conn) { sk->sk_state = BT_DISCONN; sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT); hci_conn_put(sco_pi(sk)->conn->hcon); sco_pi(sk)->conn->hcon = NULL; } else sco_chan_del(sk, ECONNRESET); break; |
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case BT_CONNECT: case BT_DISCONN: sco_chan_del(sk, ECONNRESET); break; default: sock_set_flag(sk, SOCK_ZAPPED); break; |
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} |
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} |
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/* Must be called on unlocked socket. */ static void sco_sock_close(struct sock *sk) { sco_sock_clear_timer(sk); lock_sock(sk); __sco_sock_close(sk); |
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release_sock(sk); |
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sco_sock_kill(sk); } static void sco_sock_init(struct sock *sk, struct sock *parent) { BT_DBG("sk %p", sk); |
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if (parent) { |
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sk->sk_type = parent->sk_type; |
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security_sk_clone(parent, sk); } |
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} static struct proto sco_proto = { .name = "SCO", .owner = THIS_MODULE, .obj_size = sizeof(struct sco_pinfo) }; |
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static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio) |
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{ struct sock *sk; |
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sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto); |
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if (!sk) return NULL; sock_init_data(sock, sk); INIT_LIST_HEAD(&bt_sk(sk)->accept_q); sk->sk_destruct = sco_sock_destruct; sk->sk_sndtimeo = SCO_CONN_TIMEOUT; sock_reset_flag(sk, SOCK_ZAPPED); sk->sk_protocol = proto; sk->sk_state = BT_OPEN; |
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setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk); |
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bt_sock_link(&sco_sk_list, sk); return sk; } |
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static int sco_sock_create(struct net *net, struct socket *sock, int protocol, int kern) |
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{ struct sock *sk; BT_DBG("sock %p", sock); sock->state = SS_UNCONNECTED; if (sock->type != SOCK_SEQPACKET) return -ESOCKTNOSUPPORT; sock->ops = &sco_sock_ops; |
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sk = sco_sock_alloc(net, sock, protocol, GFP_ATOMIC); |
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if (!sk) |
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return -ENOMEM; sco_sock_init(sk, NULL); return 0; } static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) { struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; struct sock *sk = sock->sk; bdaddr_t *src = &sa->sco_bdaddr; int err = 0; BT_DBG("sk %p %s", sk, batostr(&sa->sco_bdaddr)); if (!addr || addr->sa_family != AF_BLUETOOTH) return -EINVAL; lock_sock(sk); if (sk->sk_state != BT_OPEN) { err = -EBADFD; goto done; } |
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write_lock(&sco_sk_list.lock); |
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if (bacmp(src, BDADDR_ANY) && __sco_get_sock_by_addr(src)) { err = -EADDRINUSE; } else { /* Save source address */ bacpy(&bt_sk(sk)->src, &sa->sco_bdaddr); sk->sk_state = BT_BOUND; } |
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write_unlock(&sco_sk_list.lock); |
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done: release_sock(sk); return err; } static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags) { struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; struct sock *sk = sock->sk; int err = 0; BT_DBG("sk %p", sk); |
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if (alen < sizeof(struct sockaddr_sco) || addr->sa_family != AF_BLUETOOTH) |
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return -EINVAL; if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) return -EBADFD; if (sk->sk_type != SOCK_SEQPACKET) return -EINVAL; lock_sock(sk); /* Set destination address and psm */ bacpy(&bt_sk(sk)->dst, &sa->sco_bdaddr); |
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err = sco_connect(sk); if (err) |
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goto done; |
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err = bt_sock_wait_state(sk, BT_CONNECTED, |
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sock_sndtimeo(sk, flags & O_NONBLOCK)); done: release_sock(sk); return err; } static int sco_sock_listen(struct socket *sock, int backlog) { struct sock *sk = sock->sk; int err = 0; BT_DBG("sk %p backlog %d", sk, backlog); lock_sock(sk); if (sk->sk_state != BT_BOUND || sock->type != SOCK_SEQPACKET) { err = -EBADFD; goto done; } sk->sk_max_ack_backlog = backlog; sk->sk_ack_backlog = 0; sk->sk_state = BT_LISTEN; done: release_sock(sk); return err; } static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags) { DECLARE_WAITQUEUE(wait, current); struct sock *sk = sock->sk, *ch; long timeo; int err = 0; lock_sock(sk); |
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timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK); BT_DBG("sk %p timeo %ld", sk, timeo); /* Wait for an incoming connection. (wake-one). */ |
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add_wait_queue_exclusive(sk_sleep(sk), &wait); |
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while (1) { |
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set_current_state(TASK_INTERRUPTIBLE); |
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if (sk->sk_state != BT_LISTEN) { err = -EBADFD; |
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break; } |
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ch = bt_accept_dequeue(sk, newsock); if (ch) break; |
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|
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if (!timeo) { err = -EAGAIN; |
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break; } if (signal_pending(current)) { err = sock_intr_errno(timeo); break; } |
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release_sock(sk); timeo = schedule_timeout(timeo); lock_sock(sk); |
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} |
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__set_current_state(TASK_RUNNING); |
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remove_wait_queue(sk_sleep(sk), &wait); |
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if (err) goto done; newsock->state = SS_CONNECTED; BT_DBG("new socket %p", ch); done: release_sock(sk); return err; } static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer) { struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; struct sock *sk = sock->sk; BT_DBG("sock %p, sk %p", sock, sk); addr->sa_family = AF_BLUETOOTH; *len = sizeof(struct sockaddr_sco); if (peer) bacpy(&sa->sco_bdaddr, &bt_sk(sk)->dst); else bacpy(&sa->sco_bdaddr, &bt_sk(sk)->src); return 0; } |
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static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
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struct msghdr *msg, size_t len) { struct sock *sk = sock->sk; |
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int err; |
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BT_DBG("sock %p, sk %p", sock, sk); |
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err = sock_error(sk); if (err) return err; |
1da177e4c Linux-2.6.12-rc2 |
620 621 622 623 624 625 626 627 628 629 630 631 632 633 |
if (msg->msg_flags & MSG_OOB) return -EOPNOTSUPP; lock_sock(sk); if (sk->sk_state == BT_CONNECTED) err = sco_send_frame(sk, msg, len); else err = -ENOTCONN; release_sock(sk); return err; } |
b7058842c net: Make setsock... |
634 |
static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) |
1da177e4c Linux-2.6.12-rc2 |
635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 |
{ struct sock *sk = sock->sk; int err = 0; BT_DBG("sk %p", sk); lock_sock(sk); switch (optname) { default: err = -ENOPROTOOPT; break; } release_sock(sk); return err; } |
d58daf42d Bluetooth: Prepar... |
652 |
static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen) |
1da177e4c Linux-2.6.12-rc2 |
653 654 655 656 |
{ struct sock *sk = sock->sk; struct sco_options opts; struct sco_conninfo cinfo; |
8e87d1425 [NET] BLUETOOTH: ... |
657 |
int len, err = 0; |
1da177e4c Linux-2.6.12-rc2 |
658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 |
BT_DBG("sk %p", sk); if (get_user(len, optlen)) return -EFAULT; lock_sock(sk); switch (optname) { case SCO_OPTIONS: if (sk->sk_state != BT_CONNECTED) { err = -ENOTCONN; break; } opts.mtu = sco_pi(sk)->conn->mtu; BT_DBG("mtu %d", opts.mtu); len = min_t(unsigned int, len, sizeof(opts)); if (copy_to_user(optval, (char *)&opts, len)) err = -EFAULT; break; case SCO_CONNINFO: if (sk->sk_state != BT_CONNECTED) { err = -ENOTCONN; break; } |
c4c896e14 Bluetooth: sco: f... |
688 |
memset(&cinfo, 0, sizeof(cinfo)); |
1da177e4c Linux-2.6.12-rc2 |
689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 |
cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle; memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3); len = min_t(unsigned int, len, sizeof(cinfo)); if (copy_to_user(optval, (char *)&cinfo, len)) err = -EFAULT; break; default: err = -ENOPROTOOPT; break; } release_sock(sk); return err; } |
d58daf42d Bluetooth: Prepar... |
706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 |
static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen) { struct sock *sk = sock->sk; int len, err = 0; BT_DBG("sk %p", sk); if (level == SOL_SCO) return sco_sock_getsockopt_old(sock, optname, optval, optlen); if (get_user(len, optlen)) return -EFAULT; lock_sock(sk); switch (optname) { default: err = -ENOPROTOOPT; break; } release_sock(sk); return err; } |
fd0b3ff70 Bluetooth: Add pr... |
730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 |
static int sco_sock_shutdown(struct socket *sock, int how) { struct sock *sk = sock->sk; int err = 0; BT_DBG("sock %p, sk %p", sock, sk); if (!sk) return 0; lock_sock(sk); if (!sk->sk_shutdown) { sk->sk_shutdown = SHUTDOWN_MASK; sco_sock_clear_timer(sk); __sco_sock_close(sk); if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); } release_sock(sk); return err; } |
1da177e4c Linux-2.6.12-rc2 |
753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 |
static int sco_sock_release(struct socket *sock) { struct sock *sk = sock->sk; int err = 0; BT_DBG("sock %p, sk %p", sock, sk); if (!sk) return 0; sco_sock_close(sk); if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) { lock_sock(sk); err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); release_sock(sk); } sock_orphan(sk); sco_sock_kill(sk); return err; } static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) { BT_DBG("conn %p", conn); sco_pi(sk)->conn = conn; conn->sk = sk; if (parent) bt_accept_enqueue(parent, sk); } |
8e87d1425 [NET] BLUETOOTH: ... |
786 |
/* Delete channel. |
1da177e4c Linux-2.6.12-rc2 |
787 788 789 790 791 792 793 794 |
* Must be called on the locked socket. */ static void sco_chan_del(struct sock *sk, int err) { struct sco_conn *conn; conn = sco_pi(sk)->conn; BT_DBG("sk %p, conn %p, err %d", sk, conn, err); |
8e87d1425 [NET] BLUETOOTH: ... |
795 |
if (conn) { |
1da177e4c Linux-2.6.12-rc2 |
796 797 798 799 |
sco_conn_lock(conn); conn->sk = NULL; sco_pi(sk)->conn = NULL; sco_conn_unlock(conn); |
4a77708b0 Bluetooth: fix sh... |
800 801 802 |
if (conn->hcon) hci_conn_put(conn->hcon); |
1da177e4c Linux-2.6.12-rc2 |
803 804 805 806 807 808 809 810 811 812 813 |
} sk->sk_state = BT_CLOSED; sk->sk_err = err; sk->sk_state_change(sk); sock_set_flag(sk, SOCK_ZAPPED); } static void sco_conn_ready(struct sco_conn *conn) { |
735cbc478 Bluetooth: clean ... |
814 815 |
struct sock *parent; struct sock *sk = conn->sk; |
1da177e4c Linux-2.6.12-rc2 |
816 817 818 819 |
BT_DBG("conn %p", conn); sco_conn_lock(conn); |
735cbc478 Bluetooth: clean ... |
820 |
if (sk) { |
1da177e4c Linux-2.6.12-rc2 |
821 822 823 824 825 826 827 828 829 830 831 |
sco_sock_clear_timer(sk); bh_lock_sock(sk); sk->sk_state = BT_CONNECTED; sk->sk_state_change(sk); bh_unlock_sock(sk); } else { parent = sco_get_sock_listen(conn->src); if (!parent) goto done; bh_lock_sock(parent); |
b9dbdbc1f Bluetooth: Trivia... |
832 833 |
sk = sco_sock_alloc(sock_net(parent), NULL, BTPROTO_SCO, GFP_ATOMIC); |
1da177e4c Linux-2.6.12-rc2 |
834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 |
if (!sk) { bh_unlock_sock(parent); goto done; } sco_sock_init(sk, parent); bacpy(&bt_sk(sk)->src, conn->src); bacpy(&bt_sk(sk)->dst, conn->dst); hci_conn_hold(conn->hcon); __sco_chan_add(conn, sk, parent); sk->sk_state = BT_CONNECTED; /* Wake up parent */ parent->sk_data_ready(parent, 1); bh_unlock_sock(parent); } done: sco_conn_unlock(conn); } /* ----- SCO interface with lower layer (HCI) ----- */ |
686ebf283 Bluetooth: Make H... |
860 |
int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr) |
1da177e4c Linux-2.6.12-rc2 |
861 |
{ |
71aeeaa1f Bluetooth: Reject... |
862 863 864 |
register struct sock *sk; struct hlist_node *node; int lm = 0; |
1da177e4c Linux-2.6.12-rc2 |
865 |
BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr)); |
71aeeaa1f Bluetooth: Reject... |
866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 |
/* Find listening sockets */ read_lock(&sco_sk_list.lock); sk_for_each(sk, node, &sco_sk_list.head) { if (sk->sk_state != BT_LISTEN) continue; if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) || !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) { lm |= HCI_LM_ACCEPT; break; } } read_unlock(&sco_sk_list.lock); return lm; |
1da177e4c Linux-2.6.12-rc2 |
881 |
} |
686ebf283 Bluetooth: Make H... |
882 |
int sco_connect_cfm(struct hci_conn *hcon, __u8 status) |
1da177e4c Linux-2.6.12-rc2 |
883 884 |
{ BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status); |
1da177e4c Linux-2.6.12-rc2 |
885 886 887 888 889 890 |
if (!status) { struct sco_conn *conn; conn = sco_conn_add(hcon, status); if (conn) sco_conn_ready(conn); |
8e87d1425 [NET] BLUETOOTH: ... |
891 |
} else |
e175072f3 Bluetooth: Rename... |
892 |
sco_conn_del(hcon, bt_to_errno(status)); |
1da177e4c Linux-2.6.12-rc2 |
893 894 895 |
return 0; } |
686ebf283 Bluetooth: Make H... |
896 |
int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason) |
1da177e4c Linux-2.6.12-rc2 |
897 898 |
{ BT_DBG("hcon %p reason %d", hcon, reason); |
e175072f3 Bluetooth: Rename... |
899 |
sco_conn_del(hcon, bt_to_errno(reason)); |
1da177e4c Linux-2.6.12-rc2 |
900 901 |
return 0; } |
686ebf283 Bluetooth: Make H... |
902 |
int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) |
1da177e4c Linux-2.6.12-rc2 |
903 904 905 906 907 908 909 910 911 912 913 914 915 916 |
{ struct sco_conn *conn = hcon->sco_data; if (!conn) goto drop; BT_DBG("conn %p len %d", conn, skb->len); if (skb->len) { sco_recv_frame(conn, skb); return 0; } drop: |
8e87d1425 [NET] BLUETOOTH: ... |
917 |
kfree_skb(skb); |
1da177e4c Linux-2.6.12-rc2 |
918 919 |
return 0; } |
aef7d97cc Bluetooth: Conver... |
920 |
static int sco_debugfs_show(struct seq_file *f, void *p) |
1da177e4c Linux-2.6.12-rc2 |
921 922 923 |
{ struct sock *sk; struct hlist_node *node; |
1da177e4c Linux-2.6.12-rc2 |
924 |
|
ee65d19e2 Bluetooth: Remove... |
925 |
read_lock(&sco_sk_list.lock); |
1da177e4c Linux-2.6.12-rc2 |
926 |
|
be9d12273 [Bluetooth]: Remo... |
927 |
sk_for_each(sk, node, &sco_sk_list.head) { |
aef7d97cc Bluetooth: Conver... |
928 929 930 |
seq_printf(f, "%s %s %d ", batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst), sk->sk_state); |
be9d12273 [Bluetooth]: Remo... |
931 |
} |
1da177e4c Linux-2.6.12-rc2 |
932 |
|
ee65d19e2 Bluetooth: Remove... |
933 |
read_unlock(&sco_sk_list.lock); |
1da177e4c Linux-2.6.12-rc2 |
934 |
|
aef7d97cc Bluetooth: Conver... |
935 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
936 |
} |
aef7d97cc Bluetooth: Conver... |
937 938 939 940 941 942 943 944 945 946 947 948 949 |
static int sco_debugfs_open(struct inode *inode, struct file *file) { return single_open(file, sco_debugfs_show, inode->i_private); } static const struct file_operations sco_debugfs_fops = { .open = sco_debugfs_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static struct dentry *sco_debugfs; |
1da177e4c Linux-2.6.12-rc2 |
950 |
|
90ddc4f04 [NET]: move struc... |
951 |
static const struct proto_ops sco_sock_ops = { |
1da177e4c Linux-2.6.12-rc2 |
952 953 954 955 956 957 958 959 960 961 962 |
.family = PF_BLUETOOTH, .owner = THIS_MODULE, .release = sco_sock_release, .bind = sco_sock_bind, .connect = sco_sock_connect, .listen = sco_sock_listen, .accept = sco_sock_accept, .getname = sco_sock_getname, .sendmsg = sco_sock_sendmsg, .recvmsg = bt_sock_recvmsg, .poll = bt_sock_poll, |
3241ad820 [Bluetooth] Add t... |
963 |
.ioctl = bt_sock_ioctl, |
1da177e4c Linux-2.6.12-rc2 |
964 965 |
.mmap = sock_no_mmap, .socketpair = sock_no_socketpair, |
fd0b3ff70 Bluetooth: Add pr... |
966 |
.shutdown = sco_sock_shutdown, |
1da177e4c Linux-2.6.12-rc2 |
967 968 969 |
.setsockopt = sco_sock_setsockopt, .getsockopt = sco_sock_getsockopt }; |
ec1b4cf74 net: mark net_pro... |
970 |
static const struct net_proto_family sco_sock_family_ops = { |
1da177e4c Linux-2.6.12-rc2 |
971 972 973 974 |
.family = PF_BLUETOOTH, .owner = THIS_MODULE, .create = sco_sock_create, }; |
642745184 Bluetooth: Merge ... |
975 |
int __init sco_init(void) |
1da177e4c Linux-2.6.12-rc2 |
976 977 978 979 980 981 982 983 984 985 986 987 |
{ int err; err = proto_register(&sco_proto, 0); if (err < 0) return err; err = bt_sock_register(BTPROTO_SCO, &sco_sock_family_ops); if (err < 0) { BT_ERR("SCO socket registration failed"); goto error; } |
aef7d97cc Bluetooth: Conver... |
988 989 990 991 992 993 |
if (bt_debugfs) { sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs, NULL, &sco_debugfs_fops); if (!sco_debugfs) BT_ERR("Failed to create SCO debug file"); } |
1da177e4c Linux-2.6.12-rc2 |
994 |
|
1da177e4c Linux-2.6.12-rc2 |
995 996 997 998 999 1000 1001 1002 |
BT_INFO("SCO socket layer initialized"); return 0; error: proto_unregister(&sco_proto); return err; } |
642745184 Bluetooth: Merge ... |
1003 |
void __exit sco_exit(void) |
1da177e4c Linux-2.6.12-rc2 |
1004 |
{ |
aef7d97cc Bluetooth: Conver... |
1005 |
debugfs_remove(sco_debugfs); |
1da177e4c Linux-2.6.12-rc2 |
1006 1007 1008 |
if (bt_sock_unregister(BTPROTO_SCO) < 0) BT_ERR("SCO socket unregistration failed"); |
1da177e4c Linux-2.6.12-rc2 |
1009 1010 |
proto_unregister(&sco_proto); } |
7cb127d5b [Bluetooth] Add o... |
1011 1012 |
module_param(disable_esco, bool, 0644); MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation"); |