Lines Matching refs:sk
47 struct sock sk; /* must be first member */ member
92 static void caif_read_lock(struct sock *sk) in caif_read_lock() argument
95 cf_sk = container_of(sk, struct caifsock, sk); in caif_read_lock()
99 static void caif_read_unlock(struct sock *sk) in caif_read_unlock() argument
102 cf_sk = container_of(sk, struct caifsock, sk); in caif_read_unlock()
109 return cf_sk->sk.sk_rcvbuf / 4; in sk_rcvbuf_lowwater()
112 static void caif_flow_ctrl(struct sock *sk, int mode) in caif_flow_ctrl() argument
115 cf_sk = container_of(sk, struct caifsock, sk); in caif_flow_ctrl()
124 static void caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in caif_queue_rcv_skb() argument
128 struct sk_buff_head *list = &sk->sk_receive_queue; in caif_queue_rcv_skb()
129 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_queue_rcv_skb()
132 if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= in caif_queue_rcv_skb()
133 (unsigned int)sk->sk_rcvbuf && rx_flow_is_on(cf_sk)) { in caif_queue_rcv_skb()
135 atomic_read(&cf_sk->sk.sk_rmem_alloc), in caif_queue_rcv_skb()
138 caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ); in caif_queue_rcv_skb()
141 err = sk_filter(sk, skb); in caif_queue_rcv_skb()
145 if (!sk_rmem_schedule(sk, skb, skb->truesize) && rx_flow_is_on(cf_sk)) { in caif_queue_rcv_skb()
148 caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ); in caif_queue_rcv_skb()
151 skb_set_owner_r(skb, sk); in caif_queue_rcv_skb()
153 queued = !sock_flag(sk, SOCK_DEAD); in caif_queue_rcv_skb()
159 sk->sk_data_ready(sk); in caif_queue_rcv_skb()
173 if (unlikely(cf_sk->sk.sk_state != CAIF_CONNECTED)) { in caif_sktrecv_cb()
177 caif_queue_rcv_skb(&cf_sk->sk, skb); in caif_sktrecv_cb()
184 sock_hold(&cf_sk->sk); in cfsk_hold()
190 sock_put(&cf_sk->sk); in cfsk_put()
203 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
209 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
216 cf_sk->sk.sk_state = CAIF_CONNECTED; in caif_ctrl_cb()
218 cf_sk->sk.sk_shutdown = 0; in caif_ctrl_cb()
219 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
224 cf_sk->sk.sk_state = CAIF_DISCONNECTED; in caif_ctrl_cb()
225 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
230 cf_sk->sk.sk_err = ECONNREFUSED; in caif_ctrl_cb()
231 cf_sk->sk.sk_state = CAIF_DISCONNECTED; in caif_ctrl_cb()
232 cf_sk->sk.sk_shutdown = SHUTDOWN_MASK; in caif_ctrl_cb()
238 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
243 cf_sk->sk.sk_shutdown = SHUTDOWN_MASK; in caif_ctrl_cb()
244 cf_sk->sk.sk_err = ECONNRESET; in caif_ctrl_cb()
246 cf_sk->sk.sk_error_report(&cf_sk->sk); in caif_ctrl_cb()
254 static void caif_check_flow_release(struct sock *sk) in caif_check_flow_release() argument
256 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_check_flow_release()
261 if (atomic_read(&sk->sk_rmem_alloc) <= sk_rcvbuf_lowwater(cf_sk)) { in caif_check_flow_release()
263 caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_ON_REQ); in caif_check_flow_release()
275 struct sock *sk = sock->sk; in caif_seqpkt_recvmsg() local
284 skb = skb_recv_datagram(sk, flags, 0 , &ret); in caif_seqpkt_recvmsg()
299 skb_free_datagram(sk, skb); in caif_seqpkt_recvmsg()
300 caif_check_flow_release(sk); in caif_seqpkt_recvmsg()
309 static long caif_stream_data_wait(struct sock *sk, long timeo) in caif_stream_data_wait() argument
312 lock_sock(sk); in caif_stream_data_wait()
315 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); in caif_stream_data_wait()
317 if (!skb_queue_empty(&sk->sk_receive_queue) || in caif_stream_data_wait()
318 sk->sk_err || in caif_stream_data_wait()
319 sk->sk_state != CAIF_CONNECTED || in caif_stream_data_wait()
320 sock_flag(sk, SOCK_DEAD) || in caif_stream_data_wait()
321 (sk->sk_shutdown & RCV_SHUTDOWN) || in caif_stream_data_wait()
326 sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); in caif_stream_data_wait()
327 release_sock(sk); in caif_stream_data_wait()
329 lock_sock(sk); in caif_stream_data_wait()
331 if (sock_flag(sk, SOCK_DEAD)) in caif_stream_data_wait()
334 sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); in caif_stream_data_wait()
337 finish_wait(sk_sleep(sk), &wait); in caif_stream_data_wait()
338 release_sock(sk); in caif_stream_data_wait()
350 struct sock *sk = sock->sk; in caif_stream_recvmsg() local
365 if (sk->sk_state == CAIF_CONNECTING) in caif_stream_recvmsg()
368 caif_read_lock(sk); in caif_stream_recvmsg()
369 target = sock_rcvlowat(sk, flags&MSG_WAITALL, size); in caif_stream_recvmsg()
370 timeo = sock_rcvtimeo(sk, flags&MSG_DONTWAIT); in caif_stream_recvmsg()
376 lock_sock(sk); in caif_stream_recvmsg()
377 if (sock_flag(sk, SOCK_DEAD)) { in caif_stream_recvmsg()
381 skb = skb_dequeue(&sk->sk_receive_queue); in caif_stream_recvmsg()
382 caif_check_flow_release(sk); in caif_stream_recvmsg()
390 err = sock_error(sk); in caif_stream_recvmsg()
394 if (sk->sk_shutdown & RCV_SHUTDOWN) in caif_stream_recvmsg()
398 if (sk->sk_state != CAIF_CONNECTED) in caif_stream_recvmsg()
400 if (sock_flag(sk, SOCK_DEAD)) in caif_stream_recvmsg()
403 release_sock(sk); in caif_stream_recvmsg()
409 caif_read_unlock(sk); in caif_stream_recvmsg()
411 timeo = caif_stream_data_wait(sk, timeo); in caif_stream_recvmsg()
417 caif_read_lock(sk); in caif_stream_recvmsg()
420 release_sock(sk); in caif_stream_recvmsg()
423 release_sock(sk); in caif_stream_recvmsg()
426 skb_queue_head(&sk->sk_receive_queue, skb); in caif_stream_recvmsg()
440 skb_queue_head(&sk->sk_receive_queue, skb); in caif_stream_recvmsg()
450 skb_queue_head(&sk->sk_receive_queue, skb); in caif_stream_recvmsg()
454 caif_read_unlock(sk); in caif_stream_recvmsg()
467 struct sock *sk = &cf_sk->sk; in caif_wait_for_flow_on() local
472 (!wait_writeable || sock_writeable(&cf_sk->sk))) in caif_wait_for_flow_on()
480 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); in caif_wait_for_flow_on()
482 if (sk->sk_shutdown & SHUTDOWN_MASK) in caif_wait_for_flow_on()
484 *err = -sk->sk_err; in caif_wait_for_flow_on()
485 if (sk->sk_err) in caif_wait_for_flow_on()
488 if (cf_sk->sk.sk_state != CAIF_CONNECTED) in caif_wait_for_flow_on()
492 finish_wait(sk_sleep(sk), &wait); in caif_wait_for_flow_on()
507 cfpkt_set_prio(pkt, cf_sk->sk.sk_priority); in transmit_skb()
521 struct sock *sk = sock->sk; in caif_seqpkt_sendmsg() local
522 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_seqpkt_sendmsg()
529 ret = sock_error(sk); in caif_seqpkt_sendmsg()
547 timeo = sock_sndtimeo(sk, noblock); in caif_seqpkt_sendmsg()
548 timeo = caif_wait_for_flow_on(container_of(sk, struct caifsock, sk), in caif_seqpkt_sendmsg()
554 if (cf_sk->sk.sk_state != CAIF_CONNECTED || in caif_seqpkt_sendmsg()
555 sock_flag(sk, SOCK_DEAD) || in caif_seqpkt_sendmsg()
556 (sk->sk_shutdown & RCV_SHUTDOWN)) in caif_seqpkt_sendmsg()
561 if (len > cf_sk->maxframe && cf_sk->sk.sk_protocol != CAIFPROTO_RFM) in caif_seqpkt_sendmsg()
567 skb = sock_alloc_send_skb(sk, buffer_size, noblock, &ret); in caif_seqpkt_sendmsg()
597 struct sock *sk = sock->sk; in caif_stream_sendmsg() local
598 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_stream_sendmsg()
611 timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT); in caif_stream_sendmsg()
614 if (unlikely(sk->sk_shutdown & SEND_SHUTDOWN)) in caif_stream_sendmsg()
625 if (size > ((sk->sk_sndbuf >> 1) - 64)) in caif_stream_sendmsg()
626 size = (sk->sk_sndbuf >> 1) - 64; in caif_stream_sendmsg()
631 skb = sock_alloc_send_skb(sk, in caif_stream_sendmsg()
676 struct sock *sk = sock->sk; in setsockopt() local
677 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in setsockopt()
680 if (cf_sk->sk.sk_socket->state != SS_UNCONNECTED) in setsockopt()
691 lock_sock(&(cf_sk->sk)); in setsockopt()
693 release_sock(&cf_sk->sk); in setsockopt()
699 if (cf_sk->sk.sk_protocol != CAIFPROTO_UTIL) in setsockopt()
701 lock_sock(&(cf_sk->sk)); in setsockopt()
704 release_sock(&cf_sk->sk); in setsockopt()
708 release_sock(&cf_sk->sk); in setsockopt()
748 struct sock *sk = sock->sk; in caif_connect() local
749 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_connect()
756 lock_sock(sk); in caif_connect()
769 caif_assert(sk->sk_state == CAIF_DISCONNECTED); in caif_connect()
772 switch (sk->sk_state) { in caif_connect()
788 caif_assert(sk->sk_state == CAIF_CONNECTED || in caif_connect()
789 sk->sk_state == CAIF_DISCONNECTED); in caif_connect()
790 if (sk->sk_shutdown & SHUTDOWN_MASK) { in caif_connect()
792 caif_disconnect_client(sock_net(sk), &cf_sk->layer); in caif_connect()
804 sk->sk_state = CAIF_DISCONNECTED; in caif_connect()
806 sk_stream_kill_queues(&cf_sk->sk); in caif_connect()
817 sk->sk_state = CAIF_CONNECTING; in caif_connect()
821 if (cf_sk->sk.sk_priority > CAIF_PRIO_MAX) in caif_connect()
823 else if (cf_sk->sk.sk_priority < CAIF_PRIO_MIN) in caif_connect()
826 cf_sk->conn_req.priority = cf_sk->sk.sk_priority; in caif_connect()
829 cf_sk->conn_req.ifindex = cf_sk->sk.sk_bound_dev_if; in caif_connect()
833 err = caif_connect_client(sock_net(sk), &cf_sk->conn_req, in caif_connect()
837 cf_sk->sk.sk_socket->state = SS_UNCONNECTED; in caif_connect()
838 cf_sk->sk.sk_state = CAIF_DISCONNECTED; in caif_connect()
844 dev = dev_get_by_index_rcu(sock_net(sk), ifindex); in caif_connect()
864 if (sk->sk_state != CAIF_CONNECTED && (flags & O_NONBLOCK)) in caif_connect()
867 timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); in caif_connect()
869 release_sock(sk); in caif_connect()
871 timeo = wait_event_interruptible_timeout(*sk_sleep(sk), in caif_connect()
872 sk->sk_state != CAIF_CONNECTING, in caif_connect()
874 lock_sock(sk); in caif_connect()
879 if (timeo == 0 && sk->sk_state != CAIF_CONNECTED) in caif_connect()
881 if (sk->sk_state != CAIF_CONNECTED) { in caif_connect()
883 err = sock_error(sk); in caif_connect()
891 release_sock(sk); in caif_connect()
901 struct sock *sk = sock->sk; in caif_release() local
902 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_release()
904 if (!sk) in caif_release()
914 spin_lock_bh(&sk->sk_receive_queue.lock); in caif_release()
915 sock_set_flag(sk, SOCK_DEAD); in caif_release()
916 spin_unlock_bh(&sk->sk_receive_queue.lock); in caif_release()
917 sock->sk = NULL; in caif_release()
922 lock_sock(&(cf_sk->sk)); in caif_release()
923 sk->sk_state = CAIF_DISCONNECTED; in caif_release()
924 sk->sk_shutdown = SHUTDOWN_MASK; in caif_release()
926 caif_disconnect_client(sock_net(sk), &cf_sk->layer); in caif_release()
927 cf_sk->sk.sk_socket->state = SS_DISCONNECTING; in caif_release()
928 wake_up_interruptible_poll(sk_sleep(sk), EPOLLERR|EPOLLHUP); in caif_release()
930 sock_orphan(sk); in caif_release()
931 sk_stream_kill_queues(&cf_sk->sk); in caif_release()
932 release_sock(sk); in caif_release()
933 sock_put(sk); in caif_release()
941 struct sock *sk = sock->sk; in caif_poll() local
943 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_poll()
949 if (sk->sk_err) in caif_poll()
951 if (sk->sk_shutdown == SHUTDOWN_MASK) in caif_poll()
953 if (sk->sk_shutdown & RCV_SHUTDOWN) in caif_poll()
957 if (!skb_queue_empty_lockless(&sk->sk_receive_queue) || in caif_poll()
958 (sk->sk_shutdown & RCV_SHUTDOWN)) in caif_poll()
965 if (sock_writeable(sk) && tx_flow_is_on(cf_sk)) in caif_poll()
1012 static void caif_sock_destructor(struct sock *sk) in caif_sock_destructor() argument
1014 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_sock_destructor()
1015 caif_assert(!refcount_read(&sk->sk_wmem_alloc)); in caif_sock_destructor()
1016 caif_assert(sk_unhashed(sk)); in caif_sock_destructor()
1017 caif_assert(!sk->sk_socket); in caif_sock_destructor()
1018 if (!sock_flag(sk, SOCK_DEAD)) { in caif_sock_destructor()
1019 pr_debug("Attempt to release alive CAIF socket: %p\n", sk); in caif_sock_destructor()
1022 sk_stream_kill_queues(&cf_sk->sk); in caif_sock_destructor()
1029 struct sock *sk = NULL; in caif_create() local
1060 sk = sk_alloc(net, PF_CAIF, GFP_KERNEL, &prot, kern); in caif_create()
1061 if (!sk) in caif_create()
1064 cf_sk = container_of(sk, struct caifsock, sk); in caif_create()
1067 sk->sk_protocol = (unsigned char) protocol; in caif_create()
1072 sk->sk_priority = TC_PRIO_CONTROL; in caif_create()
1075 sk->sk_priority = TC_PRIO_INTERACTIVE_BULK; in caif_create()
1078 sk->sk_priority = TC_PRIO_BESTEFFORT; in caif_create()
1085 lock_sock(&(cf_sk->sk)); in caif_create()
1088 sock_init_data(sock, sk); in caif_create()
1089 sk->sk_destruct = caif_sock_destructor; in caif_create()
1093 cf_sk->sk.sk_socket->state = SS_UNCONNECTED; in caif_create()
1094 cf_sk->sk.sk_state = CAIF_DISCONNECTED; in caif_create()
1102 release_sock(&cf_sk->sk); in caif_create()