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-rw-r--r--include/net/bluetooth/l2cap.h5
-rw-r--r--net/bluetooth/l2cap_core.c97
-rw-r--r--net/bluetooth/l2cap_sock.c85
3 files changed, 94 insertions, 93 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index d09c9b1118e3..ed75e654ea61 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -446,7 +446,6 @@ extern int disable_ertm;
int l2cap_init_sockets(void);
void l2cap_cleanup_sockets(void);
-void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data);
void __l2cap_connect_rsp_defer(struct l2cap_chan *chan);
int __l2cap_wait_ack(struct sock *sk);
@@ -463,14 +462,12 @@ int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid);
void l2cap_sock_set_timer(struct sock *sk, long timeout);
void l2cap_sock_clear_timer(struct sock *sk);
-void __l2cap_sock_close(struct sock *sk, int reason);
void l2cap_sock_kill(struct sock *sk);
void l2cap_sock_init(struct sock *sk, struct sock *parent);
struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
int proto, gfp_t prio);
-void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err);
struct l2cap_chan *l2cap_chan_create(struct sock *sk);
-void l2cap_chan_del(struct l2cap_chan *chan, int err);
+void __l2cap_chan_close(struct l2cap_chan *chan, int reason);
void l2cap_chan_destroy(struct l2cap_chan *chan);
int l2cap_chan_connect(struct l2cap_chan *chan);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index af1bc3085c44..14c760c8ffe7 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -69,7 +69,11 @@ static void l2cap_busy_work(struct work_struct *work);
static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
u8 code, u8 ident, u16 dlen, void *data);
+static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
+ void *data);
static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data);
+static void l2cap_send_disconn_req(struct l2cap_conn *conn,
+ struct l2cap_chan *chan, int err);
static int l2cap_ertm_data_rcv(struct sock *sk, struct sk_buff *skb);
@@ -271,7 +275,7 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
/* Delete channel.
* Must be called on the locked socket. */
-void l2cap_chan_del(struct l2cap_chan *chan, int err)
+static void l2cap_chan_del(struct l2cap_chan *chan, int err)
{
struct sock *sk = chan->sk;
struct l2cap_conn *conn = chan->conn;
@@ -327,6 +331,87 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
}
}
+/* Must be called on unlocked socket. */
+static void l2cap_chan_close(struct sock *sk)
+{
+ l2cap_sock_clear_timer(sk);
+ lock_sock(sk);
+ __l2cap_chan_close(l2cap_pi(sk)->chan, ECONNRESET);
+ release_sock(sk);
+ l2cap_sock_kill(sk);
+}
+
+static void l2cap_chan_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)))
+ l2cap_chan_close(sk);
+
+ parent->sk_state = BT_CLOSED;
+ sock_set_flag(parent, SOCK_ZAPPED);
+}
+
+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 %d socket %p", chan, sk->sk_state, sk->sk_socket);
+
+ switch (sk->sk_state) {
+ case BT_LISTEN:
+ l2cap_chan_cleanup_listen(sk);
+ break;
+
+ case BT_CONNECTED:
+ case BT_CONFIG:
+ if ((sk->sk_type == SOCK_SEQPACKET ||
+ sk->sk_type == SOCK_STREAM) &&
+ conn->hcon->type == ACL_LINK) {
+ l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
+ l2cap_send_disconn_req(conn, chan, reason);
+ } else
+ l2cap_chan_del(chan, reason);
+ break;
+
+ case BT_CONNECT2:
+ if ((sk->sk_type == SOCK_SEQPACKET ||
+ sk->sk_type == SOCK_STREAM) &&
+ conn->hcon->type == ACL_LINK) {
+ struct l2cap_conn_rsp rsp;
+ __u16 result;
+
+ if (bt_sk(sk)->defer_setup)
+ result = L2CAP_CR_SEC_BLOCK;
+ else
+ result = L2CAP_CR_BAD_PSM;
+
+ rsp.scid = cpu_to_le16(chan->dcid);
+ rsp.dcid = cpu_to_le16(chan->scid);
+ rsp.result = cpu_to_le16(result);
+ rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
+ l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
+ sizeof(rsp), &rsp);
+ }
+
+ l2cap_chan_del(chan, reason);
+ break;
+
+ case BT_CONNECT:
+ case BT_DISCONN:
+ l2cap_chan_del(chan, reason);
+ break;
+
+ default:
+ sock_set_flag(sk, SOCK_ZAPPED);
+ break;
+ }
+}
+
static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
{
struct sock *sk = chan->sk;
@@ -393,7 +478,7 @@ u8 l2cap_get_ident(struct l2cap_conn *conn)
return id;
}
-void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data)
+static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data)
{
struct sk_buff *skb = l2cap_build_cmd(conn, code, ident, len, data);
u8 flags;
@@ -533,7 +618,7 @@ static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
}
}
-void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err)
+static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err)
{
struct sock *sk;
struct l2cap_disconn_req req;
@@ -591,10 +676,10 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
conn->feat_mask)
&& chan->conf_state &
L2CAP_CONF_STATE2_DEVICE) {
- /* __l2cap_sock_close() calls list_del(chan)
+ /* __l2cap_chan_close() calls list_del(chan)
* so release the lock */
read_unlock_bh(&conn->chan_lock);
- __l2cap_sock_close(sk, ECONNRESET);
+ __l2cap_chan_close(chan, ECONNRESET);
read_lock_bh(&conn->chan_lock);
bh_unlock_sock(sk);
continue;
@@ -3943,7 +4028,7 @@ static inline void l2cap_check_encryption(struct l2cap_chan *chan, u8 encrypt)
l2cap_sock_clear_timer(sk);
l2cap_sock_set_timer(sk, HZ * 5);
} else if (chan->sec_level == BT_SECURITY_HIGH)
- __l2cap_sock_close(sk, ECONNREFUSED);
+ __l2cap_chan_close(chan, ECONNREFUSED);
} else {
if (chan->sec_level == BT_SECURITY_MEDIUM)
l2cap_sock_clear_timer(sk);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 18dc9888d8c2..290130ca1c4a 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -58,7 +58,7 @@ static void l2cap_sock_timeout(unsigned long arg)
else
reason = ETIMEDOUT;
- __l2cap_sock_close(sk, reason);
+ __l2cap_chan_close(l2cap_pi(sk)->chan, reason);
bh_unlock_sock(sk);
@@ -813,87 +813,6 @@ void l2cap_sock_kill(struct sock *sk)
sock_put(sk);
}
-/* Must be called on unlocked socket. */
-static void l2cap_sock_close(struct sock *sk)
-{
- l2cap_sock_clear_timer(sk);
- lock_sock(sk);
- __l2cap_sock_close(sk, ECONNRESET);
- release_sock(sk);
- l2cap_sock_kill(sk);
-}
-
-static void l2cap_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)))
- l2cap_sock_close(sk);
-
- parent->sk_state = BT_CLOSED;
- sock_set_flag(parent, SOCK_ZAPPED);
-}
-
-void __l2cap_sock_close(struct sock *sk, int reason)
-{
- struct l2cap_chan *chan = l2cap_pi(sk)->chan;
- struct l2cap_conn *conn = chan->conn;
-
- BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
-
- switch (sk->sk_state) {
- case BT_LISTEN:
- l2cap_sock_cleanup_listen(sk);
- break;
-
- case BT_CONNECTED:
- case BT_CONFIG:
- if ((sk->sk_type == SOCK_SEQPACKET ||
- sk->sk_type == SOCK_STREAM) &&
- conn->hcon->type == ACL_LINK) {
- l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
- l2cap_send_disconn_req(conn, chan, reason);
- } else
- l2cap_chan_del(chan, reason);
- break;
-
- case BT_CONNECT2:
- if ((sk->sk_type == SOCK_SEQPACKET ||
- sk->sk_type == SOCK_STREAM) &&
- conn->hcon->type == ACL_LINK) {
- struct l2cap_conn_rsp rsp;
- __u16 result;
-
- if (bt_sk(sk)->defer_setup)
- result = L2CAP_CR_SEC_BLOCK;
- else
- result = L2CAP_CR_BAD_PSM;
-
- rsp.scid = cpu_to_le16(chan->dcid);
- rsp.dcid = cpu_to_le16(chan->scid);
- rsp.result = cpu_to_le16(result);
- rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
- l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
- sizeof(rsp), &rsp);
- }
-
- l2cap_chan_del(chan, reason);
- break;
-
- case BT_CONNECT:
- case BT_DISCONN:
- l2cap_chan_del(chan, reason);
- break;
-
- default:
- sock_set_flag(sk, SOCK_ZAPPED);
- break;
- }
-}
-
static int l2cap_sock_shutdown(struct socket *sock, int how)
{
struct sock *sk = sock->sk;
@@ -912,7 +831,7 @@ static int l2cap_sock_shutdown(struct socket *sock, int how)
sk->sk_shutdown = SHUTDOWN_MASK;
l2cap_sock_clear_timer(sk);
- __l2cap_sock_close(sk, 0);
+ __l2cap_chan_close(chan, 0);
if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
err = bt_sock_wait_state(sk, BT_CLOSED,
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 01:06:44 +0000