diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index 1a929afe4f16..26b5066e74e2 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -444,6 +444,8 @@ struct l2cap_chan { __u8 state; + bdaddr_t dst; + bdaddr_t src; __le16 psm; __u16 dcid; __u16 scid; diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 062e28e4722b..be3e0f8c6f8b 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -149,7 +149,7 @@ static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src) struct l2cap_chan *c; list_for_each_entry(c, &chan_list, global_l) { - if (c->sport == psm && !bacmp(&bt_sk(c->sk)->src, src)) + if (c->sport == psm && !bacmp(&c->src, src)) return c; } return NULL; @@ -621,10 +621,8 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err) void l2cap_chan_close(struct l2cap_chan *chan, int reason) { struct l2cap_conn *conn = chan->conn; - struct sock *sk = chan->sk; - BT_DBG("chan %p state %s sk %p", chan, state_to_string(chan->state), - sk); + BT_DBG("chan %p state %s", chan, state_to_string(chan->state)); switch (chan->state) { case BT_LISTEN: @@ -635,6 +633,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason) case BT_CONFIG: if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED && conn->hcon->type == ACL_LINK) { + struct sock *sk = chan->sk; __set_chan_timer(chan, sk->sk_sndtimeo); l2cap_send_disconn_req(chan, reason); } else @@ -644,6 +643,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason) case BT_CONNECT2: if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED && conn->hcon->type == ACL_LINK) { + struct sock *sk = chan->sk; struct l2cap_conn_rsp rsp; __u16 result; @@ -1257,8 +1257,6 @@ static void l2cap_conn_start(struct l2cap_conn *conn) mutex_lock(&conn->chan_lock); list_for_each_entry_safe(chan, tmp, &conn->chan_l, list) { - struct sock *sk = chan->sk; - l2cap_chan_lock(chan); if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) { @@ -1284,6 +1282,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn) l2cap_start_connection(chan); } else if (chan->state == BT_CONNECT2) { + struct sock *sk = chan->sk; struct l2cap_conn_rsp rsp; char buf[128]; rsp.scid = cpu_to_le16(chan->dcid); @@ -1341,8 +1340,6 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid, read_lock(&chan_list_lock); list_for_each_entry(c, &chan_list, global_l) { - struct sock *sk = c->sk; - if (state && c->state != state) continue; @@ -1351,16 +1348,16 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid, int src_any, dst_any; /* Exact match. */ - src_match = !bacmp(&bt_sk(sk)->src, src); - dst_match = !bacmp(&bt_sk(sk)->dst, dst); + src_match = !bacmp(&c->src, src); + dst_match = !bacmp(&c->dst, dst); if (src_match && dst_match) { read_unlock(&chan_list_lock); return c; } /* Closest match */ - src_any = !bacmp(&bt_sk(sk)->src, BDADDR_ANY); - dst_any = !bacmp(&bt_sk(sk)->dst, BDADDR_ANY); + src_any = !bacmp(&c->src, BDADDR_ANY); + dst_any = !bacmp(&c->dst, BDADDR_ANY); if ((src_match && dst_any) || (src_any && dst_match) || (src_any && dst_any)) c1 = c; @@ -1399,8 +1396,8 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) chan->dcid = L2CAP_CID_ATT; - bacpy(&bt_sk(chan->sk)->src, &conn->hcon->src); - bacpy(&bt_sk(chan->sk)->dst, &conn->hcon->dst); + bacpy(&chan->src, &conn->hcon->src); + bacpy(&chan->dst, &conn->hcon->dst); __l2cap_chan_add(conn, chan); @@ -1721,8 +1718,6 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, read_lock(&chan_list_lock); list_for_each_entry(c, &chan_list, global_l) { - struct sock *sk = c->sk; - if (state && c->state != state) continue; @@ -1731,16 +1726,16 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, int src_any, dst_any; /* Exact match. */ - src_match = !bacmp(&bt_sk(sk)->src, src); - dst_match = !bacmp(&bt_sk(sk)->dst, dst); + src_match = !bacmp(&c->src, src); + dst_match = !bacmp(&c->dst, dst); if (src_match && dst_match) { read_unlock(&chan_list_lock); return c; } /* Closest match */ - src_any = !bacmp(&bt_sk(sk)->src, BDADDR_ANY); - dst_any = !bacmp(&bt_sk(sk)->dst, BDADDR_ANY); + src_any = !bacmp(&c->src, BDADDR_ANY); + dst_any = !bacmp(&c->dst, BDADDR_ANY); if ((src_match && dst_any) || (src_any && dst_match) || (src_any && dst_any)) c1 = c; @@ -1762,10 +1757,10 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, __u8 auth_type; int err; - BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", &bt_sk(sk)->src, dst, + BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", &chan->src, dst, dst_type, __le16_to_cpu(psm)); - hdev = hci_get_route(dst, &bt_sk(sk)->src); + hdev = hci_get_route(dst, &chan->src); if (!hdev) return -EHOSTUNREACH; @@ -1822,9 +1817,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, } /* Set destination address and psm */ - lock_sock(sk); - bacpy(&bt_sk(sk)->dst, dst); - release_sock(sk); + bacpy(&chan->dst, dst); chan->psm = psm; chan->dcid = cid; @@ -1857,9 +1850,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, } /* Update source addr of the socket */ - lock_sock(sk); - bacpy(&bt_sk(sk)->src, &hcon->src); - release_sock(sk); + bacpy(&chan->src, &hcon->src); l2cap_chan_unlock(chan); l2cap_chan_add(conn, chan); @@ -3798,8 +3789,8 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, */ conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT; - bacpy(&bt_sk(sk)->src, &conn->hcon->src); - bacpy(&bt_sk(sk)->dst, &conn->hcon->dst); + bacpy(&chan->src, &conn->hcon->src); + bacpy(&chan->dst, &conn->hcon->dst); chan->psm = psm; chan->dcid = scid; chan->local_amp_id = amp_id; @@ -6542,17 +6533,15 @@ int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr) /* Find listening sockets and check their link_mode */ read_lock(&chan_list_lock); list_for_each_entry(c, &chan_list, global_l) { - struct sock *sk = c->sk; - if (c->state != BT_LISTEN) continue; - if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr)) { + if (!bacmp(&c->src, &hdev->bdaddr)) { lm1 |= HCI_LM_ACCEPT; if (test_bit(FLAG_ROLE_SWITCH, &c->flags)) lm1 |= HCI_LM_MASTER; exact++; - } else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) { + } else if (!bacmp(&c->src, BDADDR_ANY)) { lm2 |= HCI_LM_ACCEPT; if (test_bit(FLAG_ROLE_SWITCH, &c->flags)) lm2 |= HCI_LM_MASTER; @@ -6840,10 +6829,8 @@ static int l2cap_debugfs_show(struct seq_file *f, void *p) read_lock(&chan_list_lock); list_for_each_entry(c, &chan_list, global_l) { - struct sock *sk = c->sk; - seq_printf(f, "%pMR %pMR %d %d 0x%4.4x 0x%4.4x %d %d %d %d\n", - &bt_sk(sk)->src, &bt_sk(sk)->dst, + &c->src, &c->dst, c->state, __le16_to_cpu(c->psm), c->scid, c->dcid, c->imtu, c->omtu, c->sec_level, c->mode); diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index bd6fe7fd2737..9fe80d228c19 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -112,7 +112,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) break; } - bacpy(&bt_sk(sk)->src, &la.l2_bdaddr); + bacpy(&chan->src, &la.l2_bdaddr); chan->state = BT_BOUND; sk->sk_state = BT_BOUND; @@ -274,11 +274,11 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, if (peer) { la->l2_psm = chan->psm; - bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst); + bacpy(&la->l2_bdaddr, &chan->dst); la->l2_cid = cpu_to_le16(chan->dcid); } else { la->l2_psm = chan->sport; - bacpy(&la->l2_bdaddr, &bt_sk(sk)->src); + bacpy(&la->l2_bdaddr, &chan->src); la->l2_cid = cpu_to_le16(chan->scid); }