From 4519de9a0478d8de438f8b80ab2e94668ef63ab4 Mon Sep 17 00:00:00 2001 From: "Gustavo F. Padovan" Date: Thu, 28 Apr 2011 17:55:53 -0300 Subject: Bluetooth: Create __l2cap_chan_close() This is actually __l2cap_sock_close() renamed to __l2cap_chan_close(). At a first look it may not make sense, but with the further cleanups that will come it will. Signed-off-by: Gustavo F. Padovan --- net/bluetooth/l2cap_core.c | 97 +++++++++++++++++++++++++++++++++++++++++++--- net/bluetooth/l2cap_sock.c | 85 +--------------------------------------- 2 files changed, 93 insertions(+), 89 deletions(-) (limited to 'net') diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index af1bc3085c4..14c760c8ffe 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 18dc9888d8c..290130ca1c4 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, -- cgit v1.2.3-70-g09d2