Lines Matching refs:sk
49 struct sock sk; /* must be first member */ member
88 static void caif_read_lock(struct sock *sk) in caif_read_lock() argument
91 cf_sk = container_of(sk, struct caifsock, sk); in caif_read_lock()
95 static void caif_read_unlock(struct sock *sk) in caif_read_unlock() argument
98 cf_sk = container_of(sk, struct caifsock, sk); in caif_read_unlock()
105 return cf_sk->sk.sk_rcvbuf / 4; in sk_rcvbuf_lowwater()
108 static void caif_flow_ctrl(struct sock *sk, int mode) in caif_flow_ctrl() argument
111 cf_sk = container_of(sk, struct caifsock, sk); in caif_flow_ctrl()
120 static void caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in caif_queue_rcv_skb() argument
124 struct sk_buff_head *list = &sk->sk_receive_queue; in caif_queue_rcv_skb()
125 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_queue_rcv_skb()
128 if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= in caif_queue_rcv_skb()
129 (unsigned int)sk->sk_rcvbuf && rx_flow_is_on(cf_sk)) { in caif_queue_rcv_skb()
131 atomic_read(&cf_sk->sk.sk_rmem_alloc), in caif_queue_rcv_skb()
134 caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ); in caif_queue_rcv_skb()
137 err = sk_filter(sk, skb); in caif_queue_rcv_skb()
141 if (!sk_rmem_schedule(sk, skb, skb->truesize) && rx_flow_is_on(cf_sk)) { in caif_queue_rcv_skb()
144 caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ); in caif_queue_rcv_skb()
147 skb_set_owner_r(skb, sk); in caif_queue_rcv_skb()
149 queued = !sock_flag(sk, SOCK_DEAD); in caif_queue_rcv_skb()
155 sk->sk_data_ready(sk); in caif_queue_rcv_skb()
169 if (unlikely(cf_sk->sk.sk_state != CAIF_CONNECTED)) { in caif_sktrecv_cb()
173 caif_queue_rcv_skb(&cf_sk->sk, skb); in caif_sktrecv_cb()
180 sock_hold(&cf_sk->sk); in cfsk_hold()
186 sock_put(&cf_sk->sk); in cfsk_put()
199 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
205 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
212 cf_sk->sk.sk_state = CAIF_CONNECTED; in caif_ctrl_cb()
214 cf_sk->sk.sk_shutdown = 0; in caif_ctrl_cb()
215 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
220 cf_sk->sk.sk_state = CAIF_DISCONNECTED; in caif_ctrl_cb()
221 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
226 cf_sk->sk.sk_err = ECONNREFUSED; in caif_ctrl_cb()
227 cf_sk->sk.sk_state = CAIF_DISCONNECTED; in caif_ctrl_cb()
228 cf_sk->sk.sk_shutdown = SHUTDOWN_MASK; in caif_ctrl_cb()
234 cf_sk->sk.sk_state_change(&cf_sk->sk); in caif_ctrl_cb()
239 cf_sk->sk.sk_shutdown = SHUTDOWN_MASK; in caif_ctrl_cb()
240 cf_sk->sk.sk_err = ECONNRESET; in caif_ctrl_cb()
242 sk_error_report(&cf_sk->sk); in caif_ctrl_cb()
250 static void caif_check_flow_release(struct sock *sk) in caif_check_flow_release() argument
252 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_check_flow_release()
257 if (atomic_read(&sk->sk_rmem_alloc) <= sk_rcvbuf_lowwater(cf_sk)) { in caif_check_flow_release()
259 caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_ON_REQ); in caif_check_flow_release()
271 struct sock *sk = sock->sk; in caif_seqpkt_recvmsg() local
280 skb = skb_recv_datagram(sk, flags, &ret); in caif_seqpkt_recvmsg()
295 skb_free_datagram(sk, skb); in caif_seqpkt_recvmsg()
296 caif_check_flow_release(sk); in caif_seqpkt_recvmsg()
305 static long caif_stream_data_wait(struct sock *sk, long timeo) in caif_stream_data_wait() argument
308 lock_sock(sk); in caif_stream_data_wait()
311 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); in caif_stream_data_wait()
313 if (!skb_queue_empty(&sk->sk_receive_queue) || in caif_stream_data_wait()
314 sk->sk_err || in caif_stream_data_wait()
315 sk->sk_state != CAIF_CONNECTED || in caif_stream_data_wait()
316 sock_flag(sk, SOCK_DEAD) || in caif_stream_data_wait()
317 (sk->sk_shutdown & RCV_SHUTDOWN) || in caif_stream_data_wait()
322 sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); in caif_stream_data_wait()
323 release_sock(sk); in caif_stream_data_wait()
325 lock_sock(sk); in caif_stream_data_wait()
327 if (sock_flag(sk, SOCK_DEAD)) in caif_stream_data_wait()
330 sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); in caif_stream_data_wait()
333 finish_wait(sk_sleep(sk), &wait); in caif_stream_data_wait()
334 release_sock(sk); in caif_stream_data_wait()
346 struct sock *sk = sock->sk; in caif_stream_recvmsg() local
361 if (sk->sk_state == CAIF_CONNECTING) in caif_stream_recvmsg()
364 caif_read_lock(sk); in caif_stream_recvmsg()
365 target = sock_rcvlowat(sk, flags&MSG_WAITALL, size); in caif_stream_recvmsg()
366 timeo = sock_rcvtimeo(sk, flags&MSG_DONTWAIT); in caif_stream_recvmsg()
372 lock_sock(sk); in caif_stream_recvmsg()
373 if (sock_flag(sk, SOCK_DEAD)) { in caif_stream_recvmsg()
377 skb = skb_dequeue(&sk->sk_receive_queue); in caif_stream_recvmsg()
378 caif_check_flow_release(sk); in caif_stream_recvmsg()
386 err = sock_error(sk); in caif_stream_recvmsg()
390 if (sk->sk_shutdown & RCV_SHUTDOWN) in caif_stream_recvmsg()
394 if (sk->sk_state != CAIF_CONNECTED) in caif_stream_recvmsg()
396 if (sock_flag(sk, SOCK_DEAD)) in caif_stream_recvmsg()
399 release_sock(sk); in caif_stream_recvmsg()
405 caif_read_unlock(sk); in caif_stream_recvmsg()
407 timeo = caif_stream_data_wait(sk, timeo); in caif_stream_recvmsg()
413 caif_read_lock(sk); in caif_stream_recvmsg()
416 release_sock(sk); in caif_stream_recvmsg()
419 release_sock(sk); in caif_stream_recvmsg()
422 skb_queue_head(&sk->sk_receive_queue, skb); in caif_stream_recvmsg()
436 skb_queue_head(&sk->sk_receive_queue, skb); in caif_stream_recvmsg()
446 skb_queue_head(&sk->sk_receive_queue, skb); in caif_stream_recvmsg()
450 caif_read_unlock(sk); in caif_stream_recvmsg()
463 struct sock *sk = &cf_sk->sk; in caif_wait_for_flow_on() local
468 (!wait_writeable || sock_writeable(&cf_sk->sk))) in caif_wait_for_flow_on()
476 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); in caif_wait_for_flow_on()
478 if (sk->sk_shutdown & SHUTDOWN_MASK) in caif_wait_for_flow_on()
480 *err = -sk->sk_err; in caif_wait_for_flow_on()
481 if (sk->sk_err) in caif_wait_for_flow_on()
484 if (cf_sk->sk.sk_state != CAIF_CONNECTED) in caif_wait_for_flow_on()
488 finish_wait(sk_sleep(sk), &wait); in caif_wait_for_flow_on()
503 cfpkt_set_prio(pkt, cf_sk->sk.sk_priority); in transmit_skb()
517 struct sock *sk = sock->sk; in caif_seqpkt_sendmsg() local
518 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_seqpkt_sendmsg()
525 ret = sock_error(sk); in caif_seqpkt_sendmsg()
539 timeo = sock_sndtimeo(sk, noblock); in caif_seqpkt_sendmsg()
540 timeo = caif_wait_for_flow_on(container_of(sk, struct caifsock, sk), in caif_seqpkt_sendmsg()
546 if (cf_sk->sk.sk_state != CAIF_CONNECTED || in caif_seqpkt_sendmsg()
547 sock_flag(sk, SOCK_DEAD) || in caif_seqpkt_sendmsg()
548 (sk->sk_shutdown & RCV_SHUTDOWN)) in caif_seqpkt_sendmsg()
553 if (len > cf_sk->maxframe && cf_sk->sk.sk_protocol != CAIFPROTO_RFM) in caif_seqpkt_sendmsg()
559 skb = sock_alloc_send_skb(sk, buffer_size, noblock, &ret); in caif_seqpkt_sendmsg()
589 struct sock *sk = sock->sk; in caif_stream_sendmsg() local
590 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_stream_sendmsg()
603 timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT); in caif_stream_sendmsg()
606 if (unlikely(sk->sk_shutdown & SEND_SHUTDOWN)) in caif_stream_sendmsg()
617 if (size > ((sk->sk_sndbuf >> 1) - 64)) in caif_stream_sendmsg()
618 size = (sk->sk_sndbuf >> 1) - 64; in caif_stream_sendmsg()
623 skb = sock_alloc_send_skb(sk, in caif_stream_sendmsg()
668 struct sock *sk = sock->sk; in setsockopt() local
669 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in setsockopt()
672 if (cf_sk->sk.sk_socket->state != SS_UNCONNECTED) in setsockopt()
683 lock_sock(&(cf_sk->sk)); in setsockopt()
685 release_sock(&cf_sk->sk); in setsockopt()
691 if (cf_sk->sk.sk_protocol != CAIFPROTO_UTIL) in setsockopt()
693 lock_sock(&(cf_sk->sk)); in setsockopt()
696 release_sock(&cf_sk->sk); in setsockopt()
700 release_sock(&cf_sk->sk); in setsockopt()
740 struct sock *sk = sock->sk; in caif_connect() local
741 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_connect()
748 lock_sock(sk); in caif_connect()
761 caif_assert(sk->sk_state == CAIF_DISCONNECTED); in caif_connect()
764 switch (sk->sk_state) { in caif_connect()
780 caif_assert(sk->sk_state == CAIF_CONNECTED || in caif_connect()
781 sk->sk_state == CAIF_DISCONNECTED); in caif_connect()
782 if (sk->sk_shutdown & SHUTDOWN_MASK) { in caif_connect()
784 caif_disconnect_client(sock_net(sk), &cf_sk->layer); in caif_connect()
796 sk->sk_state = CAIF_DISCONNECTED; in caif_connect()
798 sk_stream_kill_queues(&cf_sk->sk); in caif_connect()
809 sk->sk_state = CAIF_CONNECTING; in caif_connect()
813 if (cf_sk->sk.sk_priority > CAIF_PRIO_MAX) in caif_connect()
815 else if (cf_sk->sk.sk_priority < CAIF_PRIO_MIN) in caif_connect()
818 cf_sk->conn_req.priority = cf_sk->sk.sk_priority; in caif_connect()
821 cf_sk->conn_req.ifindex = cf_sk->sk.sk_bound_dev_if; in caif_connect()
825 err = caif_connect_client(sock_net(sk), &cf_sk->conn_req, in caif_connect()
829 cf_sk->sk.sk_socket->state = SS_UNCONNECTED; in caif_connect()
830 cf_sk->sk.sk_state = CAIF_DISCONNECTED; in caif_connect()
836 dev = dev_get_by_index_rcu(sock_net(sk), ifindex); in caif_connect()
856 if (sk->sk_state != CAIF_CONNECTED && (flags & O_NONBLOCK)) in caif_connect()
859 timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); in caif_connect()
861 release_sock(sk); in caif_connect()
863 timeo = wait_event_interruptible_timeout(*sk_sleep(sk), in caif_connect()
864 sk->sk_state != CAIF_CONNECTING, in caif_connect()
866 lock_sock(sk); in caif_connect()
871 if (timeo == 0 && sk->sk_state != CAIF_CONNECTED) in caif_connect()
873 if (sk->sk_state != CAIF_CONNECTED) { in caif_connect()
875 err = sock_error(sk); in caif_connect()
883 release_sock(sk); in caif_connect()
893 struct sock *sk = sock->sk; in caif_release() local
894 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_release()
896 if (!sk) in caif_release()
906 spin_lock_bh(&sk->sk_receive_queue.lock); in caif_release()
907 sock_set_flag(sk, SOCK_DEAD); in caif_release()
908 spin_unlock_bh(&sk->sk_receive_queue.lock); in caif_release()
909 sock->sk = NULL; in caif_release()
914 lock_sock(&(cf_sk->sk)); in caif_release()
915 sk->sk_state = CAIF_DISCONNECTED; in caif_release()
916 sk->sk_shutdown = SHUTDOWN_MASK; in caif_release()
918 caif_disconnect_client(sock_net(sk), &cf_sk->layer); in caif_release()
919 cf_sk->sk.sk_socket->state = SS_DISCONNECTING; in caif_release()
920 wake_up_interruptible_poll(sk_sleep(sk), EPOLLERR|EPOLLHUP); in caif_release()
922 sock_orphan(sk); in caif_release()
923 sk_stream_kill_queues(&cf_sk->sk); in caif_release()
924 release_sock(sk); in caif_release()
925 sock_put(sk); in caif_release()
933 struct sock *sk = sock->sk; in caif_poll() local
935 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_poll()
941 if (sk->sk_err) in caif_poll()
943 if (sk->sk_shutdown == SHUTDOWN_MASK) in caif_poll()
945 if (sk->sk_shutdown & RCV_SHUTDOWN) in caif_poll()
949 if (!skb_queue_empty_lockless(&sk->sk_receive_queue) || in caif_poll()
950 (sk->sk_shutdown & RCV_SHUTDOWN)) in caif_poll()
957 if (sock_writeable(sk) && tx_flow_is_on(cf_sk)) in caif_poll()
1002 static void caif_sock_destructor(struct sock *sk) in caif_sock_destructor() argument
1004 struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); in caif_sock_destructor()
1005 caif_assert(!refcount_read(&sk->sk_wmem_alloc)); in caif_sock_destructor()
1006 caif_assert(sk_unhashed(sk)); in caif_sock_destructor()
1007 caif_assert(!sk->sk_socket); in caif_sock_destructor()
1008 if (!sock_flag(sk, SOCK_DEAD)) { in caif_sock_destructor()
1009 pr_debug("Attempt to release alive CAIF socket: %p\n", sk); in caif_sock_destructor()
1012 sk_stream_kill_queues(&cf_sk->sk); in caif_sock_destructor()
1013 WARN_ON_ONCE(sk->sk_forward_alloc); in caif_sock_destructor()
1020 struct sock *sk = NULL; in caif_create() local
1051 sk = sk_alloc(net, PF_CAIF, GFP_KERNEL, &prot, kern); in caif_create()
1052 if (!sk) in caif_create()
1055 cf_sk = container_of(sk, struct caifsock, sk); in caif_create()
1058 sk->sk_protocol = (unsigned char) protocol; in caif_create()
1063 sk->sk_priority = TC_PRIO_CONTROL; in caif_create()
1066 sk->sk_priority = TC_PRIO_INTERACTIVE_BULK; in caif_create()
1069 sk->sk_priority = TC_PRIO_BESTEFFORT; in caif_create()
1076 lock_sock(&(cf_sk->sk)); in caif_create()
1079 sock_init_data(sock, sk); in caif_create()
1080 sk->sk_destruct = caif_sock_destructor; in caif_create()
1084 cf_sk->sk.sk_socket->state = SS_UNCONNECTED; in caif_create()
1085 cf_sk->sk.sk_state = CAIF_DISCONNECTED; in caif_create()
1093 release_sock(&cf_sk->sk); in caif_create()