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Diffstat (limited to 'net/bluetooth/l2cap_sock.c')
-rw-r--r--net/bluetooth/l2cap_sock.c86
1 files changed, 67 insertions, 19 deletions
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 9119898ef04..5ffd75e20bd 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -32,7 +32,8 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
-#include <net/bluetooth/smp.h>
+
+#include "smp.h"
static struct bt_sock_list l2cap_sk_list = {
.lock = __RW_LOCK_UNLOCKED(l2cap_sk_list.lock)
@@ -68,6 +69,9 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
if (la.l2_cid && la.l2_psm)
return -EINVAL;
+ if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
+ return -EINVAL;
+
lock_sock(sk);
if (sk->sk_state != BT_OPEN) {
@@ -99,11 +103,20 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
if (err < 0)
goto done;
- if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
- __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
- chan->sec_level = BT_SECURITY_SDP;
+ switch (chan->chan_type) {
+ case L2CAP_CHAN_CONN_LESS:
+ if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_3DSP)
+ chan->sec_level = BT_SECURITY_SDP;
+ break;
+ case L2CAP_CHAN_CONN_ORIENTED:
+ if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
+ __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
+ chan->sec_level = BT_SECURITY_SDP;
+ break;
+ }
- bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
+ bacpy(&chan->src, &la.l2_bdaddr);
+ chan->src_type = la.l2_bdaddr_type;
chan->state = BT_BOUND;
sk->sk_state = BT_BOUND;
@@ -134,6 +147,15 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
if (la.l2_cid && la.l2_psm)
return -EINVAL;
+ if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
+ return -EINVAL;
+
+ if (chan->src_type == BDADDR_BREDR && la.l2_bdaddr_type != BDADDR_BREDR)
+ return -EINVAL;
+
+ if (chan->src_type != BDADDR_BREDR && la.l2_bdaddr_type == BDADDR_BREDR)
+ return -EINVAL;
+
err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
&la.l2_bdaddr, la.l2_bdaddr_type);
if (err)
@@ -265,12 +287,14 @@ 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);
+ la->l2_bdaddr_type = chan->dst_type;
} 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);
+ la->l2_bdaddr_type = chan->src_type;
}
return 0;
@@ -660,10 +684,13 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
break;
}
- if (opt)
+ if (opt) {
set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
- else
+ set_bit(FLAG_DEFER_SETUP, &chan->flags);
+ } else {
clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
+ clear_bit(FLAG_DEFER_SETUP, &chan->flags);
+ }
break;
case BT_FLUSHABLE:
@@ -678,7 +705,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
}
if (opt == BT_FLUSHABLE_OFF) {
- struct l2cap_conn *conn = chan->conn;
+ conn = chan->conn;
/* proceed further only when we have l2cap_conn and
No Flush support in the LM */
if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) {
@@ -964,13 +991,12 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
{
- int err;
struct sock *sk = chan->data;
- struct l2cap_pinfo *pi = l2cap_pi(sk);
+ int err;
lock_sock(sk);
- if (pi->rx_busy_skb) {
+ if (l2cap_pi(sk)->rx_busy_skb) {
err = -ENOMEM;
goto done;
}
@@ -986,9 +1012,9 @@ static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
* acked and reassembled until there is buffer space
* available.
*/
- if (err < 0 && pi->chan->mode == L2CAP_MODE_ERTM) {
- pi->rx_busy_skb = skb;
- l2cap_chan_busy(pi->chan, 1);
+ if (err < 0 && chan->mode == L2CAP_MODE_ERTM) {
+ l2cap_pi(sk)->rx_busy_skb = skb;
+ l2cap_chan_busy(chan, 1);
err = 0;
}
@@ -1098,6 +1124,14 @@ static void l2cap_sock_defer_cb(struct l2cap_chan *chan)
parent->sk_data_ready(parent, 0);
}
+static void l2cap_sock_resume_cb(struct l2cap_chan *chan)
+{
+ struct sock *sk = chan->data;
+
+ clear_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
+ sk->sk_state_change(sk);
+}
+
static struct l2cap_ops l2cap_chan_ops = {
.name = "L2CAP Socket Interface",
.new_connection = l2cap_sock_new_connection_cb,
@@ -1107,6 +1141,7 @@ static struct l2cap_ops l2cap_chan_ops = {
.state_change = l2cap_sock_state_change_cb,
.ready = l2cap_sock_ready_cb,
.defer = l2cap_sock_defer_cb,
+ .resume = l2cap_sock_resume_cb,
.alloc_skb = l2cap_sock_alloc_skb_cb,
};
@@ -1116,6 +1151,7 @@ static void l2cap_sock_destruct(struct sock *sk)
if (l2cap_pi(sk)->chan)
l2cap_chan_put(l2cap_pi(sk)->chan);
+
if (l2cap_pi(sk)->rx_busy_skb) {
kfree_skb(l2cap_pi(sk)->rx_busy_skb);
l2cap_pi(sk)->rx_busy_skb = NULL;
@@ -1125,10 +1161,22 @@ static void l2cap_sock_destruct(struct sock *sk)
skb_queue_purge(&sk->sk_write_queue);
}
+static void l2cap_skb_msg_name(struct sk_buff *skb, void *msg_name,
+ int *msg_namelen)
+{
+ struct sockaddr_l2 *la = (struct sockaddr_l2 *) msg_name;
+
+ memset(la, 0, sizeof(struct sockaddr_l2));
+ la->l2_family = AF_BLUETOOTH;
+ la->l2_psm = bt_cb(skb)->psm;
+ bacpy(&la->l2_bdaddr, &bt_cb(skb)->bdaddr);
+
+ *msg_namelen = sizeof(struct sockaddr_l2);
+}
+
static void l2cap_sock_init(struct sock *sk, struct sock *parent)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
- struct l2cap_chan *chan = pi->chan;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
BT_DBG("sk %p", sk);
@@ -1152,13 +1200,13 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
security_sk_clone(parent, sk);
} else {
-
switch (sk->sk_type) {
case SOCK_RAW:
chan->chan_type = L2CAP_CHAN_RAW;
break;
case SOCK_DGRAM:
chan->chan_type = L2CAP_CHAN_CONN_LESS;
+ bt_sk(sk)->skb_msg_name = l2cap_skb_msg_name;
break;
case SOCK_SEQPACKET:
case SOCK_STREAM:
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-25 19:45:45 +0000