Lines Matching refs:msk
34 struct mptcp_sock msk; member
53 static u64 mptcp_wnd_end(const struct mptcp_sock *msk) in mptcp_wnd_end() argument
55 return READ_ONCE(msk->wnd_end); in mptcp_wnd_end()
68 static int __mptcp_socket_create(struct mptcp_sock *msk) in __mptcp_socket_create() argument
71 struct sock *sk = (struct sock *)msk; in __mptcp_socket_create()
79 msk->scaling_ratio = tcp_sk(ssock->sk)->scaling_ratio; in __mptcp_socket_create()
80 WRITE_ONCE(msk->first, ssock->sk); in __mptcp_socket_create()
82 list_add(&subflow->node, &msk->conn_list); in __mptcp_socket_create()
85 subflow->subflow_id = msk->subflow_id++; in __mptcp_socket_create()
89 mptcp_sock_graft(msk->first, sk->sk_socket); in __mptcp_socket_create()
98 struct sock *__mptcp_nmpc_sk(struct mptcp_sock *msk) in __mptcp_nmpc_sk() argument
100 struct sock *sk = (struct sock *)msk; in __mptcp_nmpc_sk()
106 if (!msk->first) { in __mptcp_nmpc_sk()
107 ret = __mptcp_socket_create(msk); in __mptcp_nmpc_sk()
112 return msk->first; in __mptcp_nmpc_sk()
158 static bool mptcp_ooo_try_coalesce(struct mptcp_sock *msk, struct sk_buff *to, in mptcp_ooo_try_coalesce() argument
164 return mptcp_try_coalesce((struct sock *)msk, to, from); in mptcp_ooo_try_coalesce()
176 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_rmem_uncharge() local
180 reclaimable = msk->rmem_fwd_alloc - sk_unused_reserved_mem(sk); in mptcp_rmem_uncharge()
209 static void mptcp_data_queue_ofo(struct mptcp_sock *msk, struct sk_buff *skb) in mptcp_data_queue_ofo() argument
211 struct sock *sk = (struct sock *)msk; in mptcp_data_queue_ofo()
218 max_seq = atomic64_read(&msk->rcv_wnd_sent); in mptcp_data_queue_ofo()
220 pr_debug("msk=%p seq=%llx limit=%llx empty=%d\n", msk, seq, max_seq, in mptcp_data_queue_ofo()
221 RB_EMPTY_ROOT(&msk->out_of_order_queue)); in mptcp_data_queue_ofo()
227 (unsigned long long)atomic64_read(&msk->rcv_wnd_sent)); in mptcp_data_queue_ofo()
232 p = &msk->out_of_order_queue.rb_node; in mptcp_data_queue_ofo()
234 if (RB_EMPTY_ROOT(&msk->out_of_order_queue)) { in mptcp_data_queue_ofo()
236 rb_insert_color(&skb->rbnode, &msk->out_of_order_queue); in mptcp_data_queue_ofo()
237 msk->ooo_last_skb = skb; in mptcp_data_queue_ofo()
244 if (mptcp_ooo_try_coalesce(msk, msk->ooo_last_skb, skb)) { in mptcp_data_queue_ofo()
251 if (!before64(seq, MPTCP_SKB_CB(msk->ooo_last_skb)->end_seq)) { in mptcp_data_queue_ofo()
253 parent = &msk->ooo_last_skb->rbnode; in mptcp_data_queue_ofo()
285 &msk->out_of_order_queue); in mptcp_data_queue_ofo()
290 } else if (mptcp_ooo_try_coalesce(msk, skb1, skb)) { in mptcp_data_queue_ofo()
300 rb_insert_color(&skb->rbnode, &msk->out_of_order_queue); in mptcp_data_queue_ofo()
307 rb_erase(&skb1->rbnode, &msk->out_of_order_queue); in mptcp_data_queue_ofo()
313 msk->ooo_last_skb = skb; in mptcp_data_queue_ofo()
322 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_rmem_schedule() local
325 if (size <= msk->rmem_fwd_alloc) in mptcp_rmem_schedule()
328 size -= msk->rmem_fwd_alloc; in mptcp_rmem_schedule()
338 static bool __mptcp_move_skb(struct mptcp_sock *msk, struct sock *ssk, in __mptcp_move_skb() argument
343 struct sock *sk = (struct sock *)msk; in __mptcp_move_skb()
369 if (MPTCP_SKB_CB(skb)->map_seq == msk->ack_seq) { in __mptcp_move_skb()
371 msk->bytes_received += copy_len; in __mptcp_move_skb()
372 WRITE_ONCE(msk->ack_seq, msk->ack_seq + copy_len); in __mptcp_move_skb()
380 } else if (after64(MPTCP_SKB_CB(skb)->map_seq, msk->ack_seq)) { in __mptcp_move_skb()
381 mptcp_data_queue_ofo(msk, skb); in __mptcp_move_skb()
418 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_pending_data_fin_ack() local
422 msk->write_seq == READ_ONCE(msk->snd_una); in mptcp_pending_data_fin_ack()
427 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_check_data_fin_ack() local
431 WRITE_ONCE(msk->snd_data_fin_enable, 0); in mptcp_check_data_fin_ack()
450 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_pending_data_fin() local
452 if (READ_ONCE(msk->rcv_data_fin) && in mptcp_pending_data_fin()
455 u64 rcv_data_fin_seq = READ_ONCE(msk->rcv_data_fin_seq); in mptcp_pending_data_fin()
457 if (READ_ONCE(msk->ack_seq) == rcv_data_fin_seq) { in mptcp_pending_data_fin()
523 static void mptcp_send_ack(struct mptcp_sock *msk) in mptcp_send_ack() argument
527 mptcp_for_each_subflow(msk, subflow) in mptcp_send_ack()
554 static void mptcp_cleanup_rbuf(struct mptcp_sock *msk) in mptcp_cleanup_rbuf() argument
556 int old_space = READ_ONCE(msk->old_wspace); in mptcp_cleanup_rbuf()
558 struct sock *sk = (struct sock *)msk; in mptcp_cleanup_rbuf()
565 mptcp_for_each_subflow(msk, subflow) { in mptcp_cleanup_rbuf()
575 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_check_data_fin() local
593 WRITE_ONCE(msk->ack_seq, msk->ack_seq + 1); in mptcp_check_data_fin()
594 WRITE_ONCE(msk->rcv_data_fin, 0); in mptcp_check_data_fin()
616 if (!__mptcp_check_fallback(msk)) in mptcp_check_data_fin()
617 mptcp_send_ack(msk); in mptcp_check_data_fin()
623 static void mptcp_dss_corruption(struct mptcp_sock *msk, struct sock *ssk) in mptcp_dss_corruption() argument
625 if (READ_ONCE(msk->allow_infinite_fallback)) { in mptcp_dss_corruption()
635 static bool __mptcp_move_skbs_from_subflow(struct mptcp_sock *msk, in __mptcp_move_skbs_from_subflow() argument
640 struct sock *sk = (struct sock *)msk; in __mptcp_move_skbs_from_subflow()
658 pr_debug("msk=%p ssk=%p\n", msk, ssk); in __mptcp_move_skbs_from_subflow()
681 if (__mptcp_check_fallback(msk)) { in __mptcp_move_skbs_from_subflow()
703 if (__mptcp_move_skb(msk, ssk, skb, offset, len)) in __mptcp_move_skbs_from_subflow()
709 mptcp_dss_corruption(msk, ssk); in __mptcp_move_skbs_from_subflow()
714 mptcp_dss_corruption(msk, ssk); in __mptcp_move_skbs_from_subflow()
731 msk->last_data_recv = tcp_jiffies32; in __mptcp_move_skbs_from_subflow()
736 static bool __mptcp_ofo_queue(struct mptcp_sock *msk) in __mptcp_ofo_queue() argument
738 struct sock *sk = (struct sock *)msk; in __mptcp_ofo_queue()
744 p = rb_first(&msk->out_of_order_queue); in __mptcp_ofo_queue()
745 pr_debug("msk=%p empty=%d\n", msk, RB_EMPTY_ROOT(&msk->out_of_order_queue)); in __mptcp_ofo_queue()
748 if (after64(MPTCP_SKB_CB(skb)->map_seq, msk->ack_seq)) in __mptcp_ofo_queue()
752 rb_erase(&skb->rbnode, &msk->out_of_order_queue); in __mptcp_ofo_queue()
755 msk->ack_seq))) { in __mptcp_ofo_queue()
763 if (!tail || !mptcp_ooo_try_coalesce(msk, tail, skb)) { in __mptcp_ofo_queue()
764 int delta = msk->ack_seq - MPTCP_SKB_CB(skb)->map_seq; in __mptcp_ofo_queue()
768 MPTCP_SKB_CB(skb)->map_seq, msk->ack_seq, in __mptcp_ofo_queue()
774 msk->bytes_received += end_seq - msk->ack_seq; in __mptcp_ofo_queue()
775 WRITE_ONCE(msk->ack_seq, end_seq); in __mptcp_ofo_queue()
814 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_error_report() local
816 mptcp_for_each_subflow(msk, subflow) in __mptcp_error_report()
824 static bool move_skbs_to_msk(struct mptcp_sock *msk, struct sock *ssk) in move_skbs_to_msk() argument
826 struct sock *sk = (struct sock *)msk; in move_skbs_to_msk()
829 __mptcp_move_skbs_from_subflow(msk, ssk, &moved); in move_skbs_to_msk()
830 __mptcp_ofo_queue(msk); in move_skbs_to_msk()
835 __set_bit(MPTCP_ERROR_REPORT, &msk->cb_flags); in move_skbs_to_msk()
851 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_data_ready() local
872 if (move_skbs_to_msk(msk, ssk) && mptcp_epollin_ready(sk)) in mptcp_data_ready()
877 static void mptcp_subflow_joined(struct mptcp_sock *msk, struct sock *ssk) in mptcp_subflow_joined() argument
879 mptcp_subflow_ctx(ssk)->map_seq = READ_ONCE(msk->ack_seq); in mptcp_subflow_joined()
880 WRITE_ONCE(msk->allow_infinite_fallback, false); in mptcp_subflow_joined()
881 mptcp_event(MPTCP_EVENT_SUB_ESTABLISHED, msk, ssk, GFP_ATOMIC); in mptcp_subflow_joined()
884 static bool __mptcp_finish_join(struct mptcp_sock *msk, struct sock *ssk) in __mptcp_finish_join() argument
886 struct sock *sk = (struct sock *)msk; in __mptcp_finish_join()
897 mptcp_subflow_ctx(ssk)->subflow_id = msk->subflow_id++; in __mptcp_finish_join()
898 mptcp_sockopt_sync_locked(msk, ssk); in __mptcp_finish_join()
899 mptcp_subflow_joined(msk, ssk); in __mptcp_finish_join()
908 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_flush_join_list() local
914 list_move_tail(&subflow->node, &msk->conn_list); in __mptcp_flush_join_list()
915 if (!__mptcp_finish_join(msk, ssk)) in __mptcp_flush_join_list()
952 static struct sock *mptcp_subflow_recv_lookup(const struct mptcp_sock *msk) in mptcp_subflow_recv_lookup() argument
956 msk_owned_by_me(msk); in mptcp_subflow_recv_lookup()
958 mptcp_for_each_subflow(msk, subflow) { in mptcp_subflow_recv_lookup()
985 static bool mptcp_frag_can_collapse_to(const struct mptcp_sock *msk, in mptcp_frag_can_collapse_to() argument
992 df->data_seq + df->data_len == msk->write_seq; in mptcp_frag_can_collapse_to()
1013 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_clean_una() local
1017 snd_una = msk->snd_una; in __mptcp_clean_una()
1018 list_for_each_entry_safe(dfrag, dtmp, &msk->rtx_queue, list) { in __mptcp_clean_una()
1022 if (unlikely(dfrag == msk->first_pending)) { in __mptcp_clean_una()
1024 if (WARN_ON_ONCE(!msk->recovery)) in __mptcp_clean_una()
1027 WRITE_ONCE(msk->first_pending, mptcp_send_next(sk)); in __mptcp_clean_una()
1039 if (WARN_ON_ONCE(!msk->recovery)) in __mptcp_clean_una()
1055 if (unlikely(msk->recovery) && after64(msk->snd_una, msk->recovery_snd_nxt)) in __mptcp_clean_una()
1056 msk->recovery = false; in __mptcp_clean_una()
1059 if (snd_una == msk->snd_nxt && snd_una == msk->write_seq) { in __mptcp_clean_una()
1060 if (mptcp_rtx_timer_pending(sk) && !mptcp_data_fin_enabled(msk)) in __mptcp_clean_una()
1088 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_enter_memory_pressure() local
1091 mptcp_for_each_subflow(msk, subflow) { in mptcp_enter_memory_pressure()
1117 mptcp_carve_data_frag(const struct mptcp_sock *msk, struct page_frag *pfrag, in mptcp_carve_data_frag() argument
1125 dfrag->data_seq = msk->write_seq; in mptcp_carve_data_frag()
1143 static int mptcp_check_allowed_size(const struct mptcp_sock *msk, struct sock *ssk, in mptcp_check_allowed_size() argument
1146 u64 window_end = mptcp_wnd_end(msk); in mptcp_check_allowed_size()
1149 if (__mptcp_check_fallback(msk)) in mptcp_check_allowed_size()
1228 static void mptcp_update_infinite_map(struct mptcp_sock *msk, in mptcp_update_infinite_map() argument
1240 pr_fallback(msk); in mptcp_update_infinite_map()
1252 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_sendmsg_frag() local
1262 msk, ssk, dfrag->data_seq, dfrag->data_len, info->sent); in mptcp_sendmsg_frag()
1312 copy = mptcp_check_allowed_size(msk, ssk, data_seq, copy); in mptcp_sendmsg_frag()
1314 u64 snd_una = READ_ONCE(msk->snd_una); in mptcp_sendmsg_frag()
1316 if (snd_una != msk->snd_nxt || tcp_write_queue_tail(ssk)) { in mptcp_sendmsg_frag()
1369 if (READ_ONCE(msk->csum_enabled)) in mptcp_sendmsg_frag()
1375 if (READ_ONCE(msk->csum_enabled)) in mptcp_sendmsg_frag()
1378 mptcp_update_infinite_map(msk, ssk, mpext); in mptcp_sendmsg_frag()
1425 struct sock *mptcp_subflow_get_send(struct mptcp_sock *msk) in mptcp_subflow_get_send() argument
1429 struct sock *sk = (struct sock *)msk; in mptcp_subflow_get_send()
1442 mptcp_for_each_subflow(msk, subflow) { in mptcp_subflow_get_send()
1488 burst = min_t(int, MPTCP_SEND_BURST_SIZE, mptcp_wnd_end(msk) - msk->snd_nxt); in mptcp_subflow_get_send()
1497 msk->snd_burst = burst; in mptcp_subflow_get_send()
1507 static void mptcp_update_post_push(struct mptcp_sock *msk, in mptcp_update_post_push() argument
1515 msk->snd_burst -= sent; in mptcp_update_post_push()
1528 if (likely(after64(snd_nxt_new, msk->snd_nxt))) { in mptcp_update_post_push()
1529 msk->bytes_sent += snd_nxt_new - msk->snd_nxt; in mptcp_update_post_push()
1530 WRITE_ONCE(msk->snd_nxt, snd_nxt_new); in mptcp_update_post_push()
1546 struct mptcp_sock *msk = mptcp_sk(sk); in __subflow_push_pending() local
1567 mptcp_update_post_push(msk, dfrag, ret); in __subflow_push_pending()
1569 WRITE_ONCE(msk->first_pending, mptcp_send_next(sk)); in __subflow_push_pending()
1571 if (msk->snd_burst <= 0 || in __subflow_push_pending()
1583 msk->last_data_sent = tcp_jiffies32; in __subflow_push_pending()
1590 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_push_pending() local
1601 if (mptcp_sched_get_send(msk)) in __mptcp_push_pending()
1606 mptcp_for_each_subflow(msk, subflow) { in __mptcp_push_pending()
1654 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_subflow_push_pending() local
1680 if (mptcp_sched_get_send(msk)) in __mptcp_subflow_push_pending()
1691 mptcp_for_each_subflow(msk, subflow) { in __mptcp_subflow_push_pending()
1713 if (msk->snd_data_fin_enable && in __mptcp_subflow_push_pending()
1714 msk->snd_nxt + 1 == msk->write_seq) in __mptcp_subflow_push_pending()
1725 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_sendmsg_fastopen() local
1736 ssk = __mptcp_nmpc_sk(msk); in mptcp_sendmsg_fastopen()
1740 if (!msk->first) in mptcp_sendmsg_fastopen()
1743 ssk = msk->first; in mptcp_sendmsg_fastopen()
1747 msk->fastopening = 1; in mptcp_sendmsg_fastopen()
1749 msk->fastopening = 0; in mptcp_sendmsg_fastopen()
1796 const struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_send_limit() local
1806 not_sent = msk->write_seq - msk->snd_nxt; in mptcp_send_limit()
1815 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_sendmsg() local
1868 dfrag_collapsed = mptcp_frag_can_collapse_to(msk, pfrag, dfrag); in mptcp_sendmsg()
1873 dfrag = mptcp_carve_data_frag(msk, pfrag, pfrag->offset); in mptcp_sendmsg()
1901 WRITE_ONCE(msk->write_seq, msk->write_seq + psize); in mptcp_sendmsg()
1909 list_add_tail(&dfrag->list, &msk->rtx_queue); in mptcp_sendmsg()
1910 if (!msk->first_pending) in mptcp_sendmsg()
1911 WRITE_ONCE(msk->first_pending, dfrag); in mptcp_sendmsg()
1913 pr_debug("msk=%p dfrag at seq=%llu len=%u sent=%u new=%d\n", msk, in mptcp_sendmsg()
1942 static int __mptcp_recvmsg_mskq(struct mptcp_sock *msk, in __mptcp_recvmsg_mskq() argument
1951 skb_queue_walk_safe(&msk->receive_queue, skb, tmp) { in __mptcp_recvmsg_mskq()
1977 msk->bytes_consumed += count; in __mptcp_recvmsg_mskq()
1985 WRITE_ONCE(msk->rmem_released, msk->rmem_released + skb->truesize); in __mptcp_recvmsg_mskq()
1986 __skb_unlink(skb, &msk->receive_queue); in __mptcp_recvmsg_mskq()
1988 msk->bytes_consumed += count; in __mptcp_recvmsg_mskq()
2002 static void mptcp_rcv_space_adjust(struct mptcp_sock *msk, int copied) in mptcp_rcv_space_adjust() argument
2005 struct sock *sk = (struct sock *)msk; in mptcp_rcv_space_adjust()
2010 msk_owned_by_me(msk); in mptcp_rcv_space_adjust()
2015 if (!msk->rcvspace_init) in mptcp_rcv_space_adjust()
2016 mptcp_rcv_space_init(msk, msk->first); in mptcp_rcv_space_adjust()
2018 msk->rcvq_space.copied += copied; in mptcp_rcv_space_adjust()
2021 time = tcp_stamp_us_delta(mstamp, msk->rcvq_space.time); in mptcp_rcv_space_adjust()
2023 rtt_us = msk->rcvq_space.rtt_us; in mptcp_rcv_space_adjust()
2028 mptcp_for_each_subflow(msk, subflow) { in mptcp_rcv_space_adjust()
2043 msk->rcvq_space.rtt_us = rtt_us; in mptcp_rcv_space_adjust()
2044 msk->scaling_ratio = scaling_ratio; in mptcp_rcv_space_adjust()
2048 if (msk->rcvq_space.copied <= msk->rcvq_space.space) in mptcp_rcv_space_adjust()
2056 rcvwin = ((u64)msk->rcvq_space.copied << 1) + 16 * advmss; in mptcp_rcv_space_adjust()
2058 grow = rcvwin * (msk->rcvq_space.copied - msk->rcvq_space.space); in mptcp_rcv_space_adjust()
2060 do_div(grow, msk->rcvq_space.space); in mptcp_rcv_space_adjust()
2077 mptcp_for_each_subflow(msk, subflow) { in mptcp_rcv_space_adjust()
2092 msk->rcvq_space.space = msk->rcvq_space.copied; in mptcp_rcv_space_adjust()
2094 msk->rcvq_space.copied = 0; in mptcp_rcv_space_adjust()
2095 msk->rcvq_space.time = mstamp; in mptcp_rcv_space_adjust()
2100 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_update_rmem() local
2102 if (!msk->rmem_released) in __mptcp_update_rmem()
2105 atomic_sub(msk->rmem_released, &sk->sk_rmem_alloc); in __mptcp_update_rmem()
2106 mptcp_rmem_uncharge(sk, msk->rmem_released); in __mptcp_update_rmem()
2107 WRITE_ONCE(msk->rmem_released, 0); in __mptcp_update_rmem()
2112 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_splice_receive_queue() local
2114 skb_queue_splice_tail_init(&sk->sk_receive_queue, &msk->receive_queue); in __mptcp_splice_receive_queue()
2117 static bool __mptcp_move_skbs(struct mptcp_sock *msk) in __mptcp_move_skbs() argument
2119 struct sock *sk = (struct sock *)msk; in __mptcp_move_skbs()
2124 struct sock *ssk = mptcp_subflow_recv_lookup(msk); in __mptcp_move_skbs()
2137 done = __mptcp_move_skbs_from_subflow(msk, ssk, &moved); in __mptcp_move_skbs()
2147 if (!RB_EMPTY_ROOT(&msk->out_of_order_queue) || in __mptcp_move_skbs()
2151 ret |= __mptcp_ofo_queue(msk); in __mptcp_move_skbs()
2156 mptcp_check_data_fin((struct sock *)msk); in __mptcp_move_skbs()
2157 return !skb_queue_empty(&msk->receive_queue); in __mptcp_move_skbs()
2162 const struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_inq_hint() local
2165 skb = skb_peek(&msk->receive_queue); in mptcp_inq_hint()
2167 u64 hint_val = READ_ONCE(msk->ack_seq) - MPTCP_SKB_CB(skb)->map_seq; in mptcp_inq_hint()
2184 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_recvmsg() local
2205 if (unlikely(msk->recvmsg_inq)) in mptcp_recvmsg()
2211 bytes_read = __mptcp_recvmsg_mskq(msk, msg, len - copied, flags, &tss, &cmsg_flags); in mptcp_recvmsg()
2221 mptcp_cleanup_rbuf(msk); in mptcp_recvmsg()
2223 if (skb_queue_empty(&msk->receive_queue) && __mptcp_move_skbs(msk)) in mptcp_recvmsg()
2249 if (__mptcp_move_skbs(msk)) in mptcp_recvmsg()
2271 mptcp_rcv_space_adjust(msk, copied); in mptcp_recvmsg()
2279 mptcp_rcv_space_adjust(msk, copied); in mptcp_recvmsg()
2294 msk, skb_queue_empty_lockless(&sk->sk_receive_queue), in mptcp_recvmsg()
2295 skb_queue_empty(&msk->receive_queue), copied); in mptcp_recvmsg()
2306 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_retransmit_timer() local
2311 if (!test_and_set_bit(MPTCP_WORK_RTX, &msk->flags)) in mptcp_retransmit_timer()
2315 __set_bit(MPTCP_RETRANSMIT, &msk->cb_flags); in mptcp_retransmit_timer()
2334 struct sock *mptcp_subflow_get_retrans(struct mptcp_sock *msk) in mptcp_subflow_get_retrans() argument
2340 mptcp_for_each_subflow(msk, subflow) { in mptcp_subflow_get_retrans()
2348 mptcp_pm_subflow_chk_stale(msk, ssk); in mptcp_subflow_get_retrans()
2373 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_retransmit_pending_data() local
2375 if (__mptcp_check_fallback(msk)) in __mptcp_retransmit_pending_data()
2390 msk->recovery_snd_nxt = msk->snd_nxt; in __mptcp_retransmit_pending_data()
2391 msk->recovery = true; in __mptcp_retransmit_pending_data()
2394 msk->first_pending = rtx_head; in __mptcp_retransmit_pending_data()
2395 msk->snd_burst = 0; in __mptcp_retransmit_pending_data()
2398 list_for_each_entry(cur, &msk->rtx_queue, list) { in __mptcp_retransmit_pending_data()
2443 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_close_ssk() local
2451 if (msk->in_accept_queue && msk->first == ssk && in __mptcp_close_ssk()
2461 dispose_it = msk->free_first || ssk != msk->first; in __mptcp_close_ssk()
2467 if ((flags & MPTCP_CF_FASTCLOSE) && !__mptcp_check_fallback(msk)) { in __mptcp_close_ssk()
2507 if (ssk == msk->first) in __mptcp_close_ssk()
2508 WRITE_ONCE(msk->first, NULL); in __mptcp_close_ssk()
2520 if (list_is_singular(&msk->conn_list) && msk->first && in __mptcp_close_ssk()
2521 inet_sk_state_load(msk->first) == TCP_CLOSE) { in __mptcp_close_ssk()
2523 msk->in_accept_queue || sock_flag(sk, SOCK_DEAD)) { in __mptcp_close_ssk()
2560 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_close_subflow() local
2564 mptcp_for_each_subflow_safe(msk, subflow, tmp) { in __mptcp_close_subflow()
2592 static void mptcp_check_fastclose(struct mptcp_sock *msk) in mptcp_check_fastclose() argument
2595 struct sock *sk = (struct sock *)msk; in mptcp_check_fastclose()
2597 if (likely(!READ_ONCE(msk->rcv_fastclose))) in mptcp_check_fastclose()
2600 mptcp_token_destroy(msk); in mptcp_check_fastclose()
2602 mptcp_for_each_subflow_safe(msk, subflow, tmp) { in mptcp_check_fastclose()
2631 set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &msk->flags); in mptcp_check_fastclose()
2643 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_retrans() local
2654 err = mptcp_sched_get_retrans(msk); in __mptcp_retrans()
2657 if (mptcp_data_fin_enabled(msk)) { in __mptcp_retrans()
2662 mptcp_send_ack(msk); in __mptcp_retrans()
2676 mptcp_for_each_subflow(msk, subflow) { in __mptcp_retrans()
2688 info.limit = READ_ONCE(msk->csum_enabled) ? dfrag->data_len : in __mptcp_retrans()
2703 WRITE_ONCE(msk->allow_infinite_fallback, false); in __mptcp_retrans()
2710 msk->bytes_retrans += len; in __mptcp_retrans()
2723 void mptcp_reset_tout_timer(struct mptcp_sock *msk, unsigned long fail_tout) in mptcp_reset_tout_timer() argument
2725 struct sock *sk = (struct sock *)msk; in mptcp_reset_tout_timer()
2742 static void mptcp_mp_fail_no_response(struct mptcp_sock *msk) in mptcp_mp_fail_no_response() argument
2744 struct sock *ssk = msk->first; in mptcp_mp_fail_no_response()
2761 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_do_fastclose() local
2764 mptcp_for_each_subflow_safe(msk, subflow, tmp) in mptcp_do_fastclose()
2771 struct mptcp_sock *msk = container_of(work, struct mptcp_sock, work); in mptcp_worker() local
2772 struct sock *sk = (struct sock *)msk; in mptcp_worker()
2781 mptcp_check_fastclose(msk); in mptcp_worker()
2783 mptcp_pm_nl_work(msk); in mptcp_worker()
2789 if (test_and_clear_bit(MPTCP_WORK_CLOSE_SUBFLOW, &msk->flags)) in mptcp_worker()
2802 if (test_and_clear_bit(MPTCP_WORK_RTX, &msk->flags)) in mptcp_worker()
2805 fail_tout = msk->first ? READ_ONCE(mptcp_subflow_ctx(msk->first)->fail_tout) : 0; in mptcp_worker()
2807 mptcp_mp_fail_no_response(msk); in mptcp_worker()
2816 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_init_sock() local
2818 INIT_LIST_HEAD(&msk->conn_list); in __mptcp_init_sock()
2819 INIT_LIST_HEAD(&msk->join_list); in __mptcp_init_sock()
2820 INIT_LIST_HEAD(&msk->rtx_queue); in __mptcp_init_sock()
2821 INIT_WORK(&msk->work, mptcp_worker); in __mptcp_init_sock()
2822 __skb_queue_head_init(&msk->receive_queue); in __mptcp_init_sock()
2823 msk->out_of_order_queue = RB_ROOT; in __mptcp_init_sock()
2824 msk->first_pending = NULL; in __mptcp_init_sock()
2825 WRITE_ONCE(msk->rmem_fwd_alloc, 0); in __mptcp_init_sock()
2826 WRITE_ONCE(msk->rmem_released, 0); in __mptcp_init_sock()
2827 msk->timer_ival = TCP_RTO_MIN; in __mptcp_init_sock()
2828 msk->scaling_ratio = TCP_DEFAULT_SCALING_RATIO; in __mptcp_init_sock()
2830 WRITE_ONCE(msk->first, NULL); in __mptcp_init_sock()
2832 WRITE_ONCE(msk->csum_enabled, mptcp_is_checksum_enabled(sock_net(sk))); in __mptcp_init_sock()
2833 WRITE_ONCE(msk->allow_infinite_fallback, true); in __mptcp_init_sock()
2834 msk->recovery = false; in __mptcp_init_sock()
2835 msk->subflow_id = 1; in __mptcp_init_sock()
2836 msk->last_data_sent = tcp_jiffies32; in __mptcp_init_sock()
2837 msk->last_data_recv = tcp_jiffies32; in __mptcp_init_sock()
2838 msk->last_ack_recv = tcp_jiffies32; in __mptcp_init_sock()
2840 mptcp_pm_data_init(msk); in __mptcp_init_sock()
2843 timer_setup(&msk->sk.icsk_retransmit_timer, mptcp_retransmit_timer, 0); in __mptcp_init_sock()
2896 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_clear_xmit() local
2899 WRITE_ONCE(msk->first_pending, NULL); in __mptcp_clear_xmit()
2900 list_for_each_entry_safe(dfrag, dtmp, &msk->rtx_queue, list) in __mptcp_clear_xmit()
2906 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_cancel_work() local
2908 if (cancel_work_sync(&msk->work)) in mptcp_cancel_work()
3000 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_check_send_data_fin() local
3003 msk, msk->snd_data_fin_enable, !!mptcp_send_head(sk), in mptcp_check_send_data_fin()
3004 msk->snd_nxt, msk->write_seq); in mptcp_check_send_data_fin()
3009 if (!msk->snd_data_fin_enable || msk->snd_nxt + 1 != msk->write_seq || in mptcp_check_send_data_fin()
3013 WRITE_ONCE(msk->snd_nxt, msk->write_seq); in mptcp_check_send_data_fin()
3015 mptcp_for_each_subflow(msk, subflow) { in mptcp_check_send_data_fin()
3024 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_wr_shutdown() local
3027 msk, msk->snd_data_fin_enable, sk->sk_shutdown, sk->sk_state, in __mptcp_wr_shutdown()
3031 WRITE_ONCE(msk->write_seq, msk->write_seq + 1); in __mptcp_wr_shutdown()
3032 WRITE_ONCE(msk->snd_data_fin_enable, 1); in __mptcp_wr_shutdown()
3039 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_destroy_sock() local
3041 pr_debug("msk=%p\n", msk); in __mptcp_destroy_sock()
3047 msk->pm.status = 0; in __mptcp_destroy_sock()
3048 mptcp_release_sched(msk); in __mptcp_destroy_sock()
3052 WARN_ON_ONCE(READ_ONCE(msk->rmem_fwd_alloc)); in __mptcp_destroy_sock()
3053 WARN_ON_ONCE(msk->rmem_released); in __mptcp_destroy_sock()
3095 struct mptcp_sock *msk = mptcp_sk(sk); in __mptcp_close() local
3107 if (mptcp_data_avail(msk) || timeout < 0) { in __mptcp_close()
3121 mptcp_for_each_subflow(msk, subflow) { in __mptcp_close()
3130 if (ssk == msk->first) in __mptcp_close()
3150 if (msk->token) in __mptcp_close()
3151 mptcp_event(MPTCP_EVENT_CLOSED, msk, NULL, GFP_KERNEL); in __mptcp_close()
3177 static void mptcp_copy_inaddrs(struct sock *msk, const struct sock *ssk) in mptcp_copy_inaddrs() argument
3181 struct ipv6_pinfo *msk6 = inet6_sk(msk); in mptcp_copy_inaddrs()
3183 msk->sk_v6_daddr = ssk->sk_v6_daddr; in mptcp_copy_inaddrs()
3184 msk->sk_v6_rcv_saddr = ssk->sk_v6_rcv_saddr; in mptcp_copy_inaddrs()
3192 inet_sk(msk)->inet_num = inet_sk(ssk)->inet_num; in mptcp_copy_inaddrs()
3193 inet_sk(msk)->inet_dport = inet_sk(ssk)->inet_dport; in mptcp_copy_inaddrs()
3194 inet_sk(msk)->inet_sport = inet_sk(ssk)->inet_sport; in mptcp_copy_inaddrs()
3195 inet_sk(msk)->inet_daddr = inet_sk(ssk)->inet_daddr; in mptcp_copy_inaddrs()
3196 inet_sk(msk)->inet_saddr = inet_sk(ssk)->inet_saddr; in mptcp_copy_inaddrs()
3197 inet_sk(msk)->inet_rcv_saddr = inet_sk(ssk)->inet_rcv_saddr; in mptcp_copy_inaddrs()
3202 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_disconnect() local
3208 if (msk->fastopening) in mptcp_disconnect()
3217 if (msk->token) in mptcp_disconnect()
3218 mptcp_event(MPTCP_EVENT_CLOSED, msk, NULL, GFP_KERNEL); in mptcp_disconnect()
3223 mptcp_destroy_common(msk, MPTCP_CF_FASTCLOSE); in mptcp_disconnect()
3224 WRITE_ONCE(msk->flags, 0); in mptcp_disconnect()
3225 msk->cb_flags = 0; in mptcp_disconnect()
3226 msk->recovery = false; in mptcp_disconnect()
3227 WRITE_ONCE(msk->can_ack, false); in mptcp_disconnect()
3228 WRITE_ONCE(msk->fully_established, false); in mptcp_disconnect()
3229 WRITE_ONCE(msk->rcv_data_fin, false); in mptcp_disconnect()
3230 WRITE_ONCE(msk->snd_data_fin_enable, false); in mptcp_disconnect()
3231 WRITE_ONCE(msk->rcv_fastclose, false); in mptcp_disconnect()
3232 WRITE_ONCE(msk->use_64bit_ack, false); in mptcp_disconnect()
3233 WRITE_ONCE(msk->csum_enabled, mptcp_is_checksum_enabled(sock_net(sk))); in mptcp_disconnect()
3234 mptcp_pm_data_reset(msk); in mptcp_disconnect()
3236 msk->bytes_consumed = 0; in mptcp_disconnect()
3237 msk->bytes_acked = 0; in mptcp_disconnect()
3238 msk->bytes_received = 0; in mptcp_disconnect()
3239 msk->bytes_sent = 0; in mptcp_disconnect()
3240 msk->bytes_retrans = 0; in mptcp_disconnect()
3241 msk->rcvspace_init = 0; in mptcp_disconnect()
3307 struct mptcp_sock *msk; in mptcp_sk_clone_init() local
3326 msk = mptcp_sk(nsk); in mptcp_sk_clone_init()
3327 WRITE_ONCE(msk->local_key, subflow_req->local_key); in mptcp_sk_clone_init()
3328 WRITE_ONCE(msk->token, subflow_req->token); in mptcp_sk_clone_init()
3329 msk->in_accept_queue = 1; in mptcp_sk_clone_init()
3330 WRITE_ONCE(msk->fully_established, false); in mptcp_sk_clone_init()
3332 WRITE_ONCE(msk->csum_enabled, true); in mptcp_sk_clone_init()
3334 WRITE_ONCE(msk->write_seq, subflow_req->idsn + 1); in mptcp_sk_clone_init()
3335 WRITE_ONCE(msk->snd_nxt, msk->write_seq); in mptcp_sk_clone_init()
3336 WRITE_ONCE(msk->snd_una, msk->write_seq); in mptcp_sk_clone_init()
3337 WRITE_ONCE(msk->wnd_end, msk->snd_nxt + tcp_sk(ssk)->snd_wnd); in mptcp_sk_clone_init()
3338 msk->setsockopt_seq = mptcp_sk(sk)->setsockopt_seq; in mptcp_sk_clone_init()
3339 mptcp_init_sched(msk, mptcp_sk(sk)->sched); in mptcp_sk_clone_init()
3342 msk->subflow_id = 2; in mptcp_sk_clone_init()
3353 WRITE_ONCE(msk->first, ssk); in mptcp_sk_clone_init()
3355 list_add(&subflow->node, &msk->conn_list); in mptcp_sk_clone_init()
3361 mptcp_token_accept(subflow_req, msk); in mptcp_sk_clone_init()
3369 mptcp_rcv_space_init(msk, ssk); in mptcp_sk_clone_init()
3372 __mptcp_subflow_fully_established(msk, subflow, mp_opt); in mptcp_sk_clone_init()
3379 void mptcp_rcv_space_init(struct mptcp_sock *msk, const struct sock *ssk) in mptcp_rcv_space_init() argument
3383 msk->rcvspace_init = 1; in mptcp_rcv_space_init()
3384 msk->rcvq_space.copied = 0; in mptcp_rcv_space_init()
3385 msk->rcvq_space.rtt_us = 0; in mptcp_rcv_space_init()
3387 msk->rcvq_space.time = tp->tcp_mstamp; in mptcp_rcv_space_init()
3390 msk->rcvq_space.space = min_t(u32, tp->rcv_wnd, in mptcp_rcv_space_init()
3392 if (msk->rcvq_space.space == 0) in mptcp_rcv_space_init()
3393 msk->rcvq_space.space = TCP_INIT_CWND * TCP_MSS_DEFAULT; in mptcp_rcv_space_init()
3396 void mptcp_destroy_common(struct mptcp_sock *msk, unsigned int flags) in mptcp_destroy_common() argument
3399 struct sock *sk = (struct sock *)msk; in mptcp_destroy_common()
3404 mptcp_for_each_subflow_safe(msk, subflow, tmp) in mptcp_destroy_common()
3409 skb_queue_splice_tail_init(&msk->receive_queue, &sk->sk_receive_queue); in mptcp_destroy_common()
3411 skb_rbtree_purge(&msk->out_of_order_queue); in mptcp_destroy_common()
3417 sk_forward_alloc_add(sk, msk->rmem_fwd_alloc); in mptcp_destroy_common()
3418 WRITE_ONCE(msk->rmem_fwd_alloc, 0); in mptcp_destroy_common()
3419 mptcp_token_destroy(msk); in mptcp_destroy_common()
3420 mptcp_pm_free_anno_list(msk); in mptcp_destroy_common()
3421 mptcp_free_local_addr_list(msk); in mptcp_destroy_common()
3426 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_destroy() local
3429 msk->free_first = 1; in mptcp_destroy()
3430 mptcp_destroy_common(msk, 0); in mptcp_destroy()
3461 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_release_cb() local
3464 unsigned long flags = (msk->cb_flags & MPTCP_FLAGS_PROCESS_CTX_NEED); in mptcp_release_cb()
3471 list_splice_init(&msk->join_list, &join_list); in mptcp_release_cb()
3480 msk->cb_flags &= ~flags; in mptcp_release_cb()
3494 if (__test_and_clear_bit(MPTCP_CLEAN_UNA, &msk->cb_flags)) in mptcp_release_cb()
3496 if (unlikely(msk->cb_flags)) { in mptcp_release_cb()
3501 if (__test_and_clear_bit(MPTCP_SYNC_STATE, &msk->cb_flags) && msk->first) in mptcp_release_cb()
3502 __mptcp_sync_state(sk, msk->pending_state); in mptcp_release_cb()
3503 if (__test_and_clear_bit(MPTCP_ERROR_REPORT, &msk->cb_flags)) in mptcp_release_cb()
3505 if (__test_and_clear_bit(MPTCP_SYNC_SNDBUF, &msk->cb_flags)) in mptcp_release_cb()
3579 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_get_port() local
3581 pr_debug("msk=%p, ssk=%p\n", msk, msk->first); in mptcp_get_port()
3582 if (WARN_ON_ONCE(!msk->first)) in mptcp_get_port()
3585 return inet_csk_get_port(msk->first, snum); in mptcp_get_port()
3591 struct mptcp_sock *msk; in mptcp_finish_connect() local
3596 msk = mptcp_sk(sk); in mptcp_finish_connect()
3606 WRITE_ONCE(msk->local_key, subflow->local_key); in mptcp_finish_connect()
3608 mptcp_pm_new_connection(msk, ssk, 0); in mptcp_finish_connect()
3623 struct mptcp_sock *msk = mptcp_sk(subflow->conn); in mptcp_finish_join() local
3624 struct sock *parent = (void *)msk; in mptcp_finish_join()
3627 pr_debug("msk=%p, subflow=%p\n", msk, subflow); in mptcp_finish_join()
3637 mptcp_subflow_joined(msk, ssk); in mptcp_finish_join()
3642 if (!mptcp_pm_allow_new_subflow(msk)) in mptcp_finish_join()
3650 ret = __mptcp_finish_join(msk, ssk); in mptcp_finish_join()
3653 list_add_tail(&subflow->node, &msk->conn_list); in mptcp_finish_join()
3657 list_add_tail(&subflow->node, &msk->join_list); in mptcp_finish_join()
3658 __set_bit(MPTCP_FLUSH_JOIN_LIST, &msk->cb_flags); in mptcp_finish_join()
3685 static int mptcp_ioctl_outq(const struct mptcp_sock *msk, u64 v) in mptcp_ioctl_outq() argument
3687 const struct sock *sk = (void *)msk; in mptcp_ioctl_outq()
3696 delta = msk->write_seq - v; in mptcp_ioctl_outq()
3697 if (__mptcp_check_fallback(msk) && msk->first) { in mptcp_ioctl_outq()
3698 struct tcp_sock *tp = tcp_sk(msk->first); in mptcp_ioctl_outq()
3704 if (!((1 << msk->first->sk_state) & in mptcp_ioctl_outq()
3716 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_ioctl() local
3725 __mptcp_move_skbs(msk); in mptcp_ioctl()
3731 *karg = mptcp_ioctl_outq(msk, READ_ONCE(msk->snd_una)); in mptcp_ioctl()
3736 *karg = mptcp_ioctl_outq(msk, msk->snd_nxt); in mptcp_ioctl()
3749 struct mptcp_sock *msk = mptcp_sk(sk); in mptcp_connect() local
3753 ssk = __mptcp_nmpc_sk(msk); in mptcp_connect()
3764 mptcp_subflow_early_fallback(msk, subflow); in mptcp_connect()
3769 mptcp_subflow_early_fallback(msk, subflow); in mptcp_connect()
3772 mptcp_subflow_early_fallback(msk, subflow); in mptcp_connect()
3776 WRITE_ONCE(msk->write_seq, subflow->idsn); in mptcp_connect()
3777 WRITE_ONCE(msk->snd_nxt, subflow->idsn); in mptcp_connect()
3778 WRITE_ONCE(msk->snd_una, subflow->idsn); in mptcp_connect()
3779 if (likely(!__mptcp_check_fallback(msk))) in mptcp_connect()
3785 if (!msk->fastopening) in mptcp_connect()
3807 if (!msk->fastopening) in mptcp_connect()
3815 mptcp_token_destroy(msk); in mptcp_connect()
3860 struct mptcp_sock *msk = mptcp_sk(sock->sk); in mptcp_bind() local
3865 ssk = __mptcp_nmpc_sk(msk); in mptcp_bind()
3887 struct mptcp_sock *msk = mptcp_sk(sock->sk); in mptcp_listen() local
3892 pr_debug("msk=%p\n", msk); in mptcp_listen()
3900 ssk = __mptcp_nmpc_sk(msk); in mptcp_listen()
3928 struct mptcp_sock *msk = mptcp_sk(sock->sk); in mptcp_stream_accept() local
3931 pr_debug("msk=%p\n", msk); in mptcp_stream_accept()
3936 ssk = READ_ONCE(msk->first); in mptcp_stream_accept()
3969 msk = mptcp_sk(newsk); in mptcp_stream_accept()
3970 msk->in_accept_queue = 0; in mptcp_stream_accept()
3975 mptcp_for_each_subflow(msk, subflow) { in mptcp_stream_accept()
3985 if (unlikely(inet_sk_state_load(msk->first) == TCP_CLOSE)) { in mptcp_stream_accept()
3986 __mptcp_close_ssk(newsk, msk->first, in mptcp_stream_accept()
3987 mptcp_subflow_ctx(msk->first), 0); in mptcp_stream_accept()
3988 if (unlikely(list_is_singular(&msk->conn_list))) in mptcp_stream_accept()
4010 static __poll_t mptcp_check_writeable(struct mptcp_sock *msk) in mptcp_check_writeable() argument
4012 struct sock *sk = (struct sock *)msk; in mptcp_check_writeable()
4029 struct mptcp_sock *msk; in mptcp_poll() local
4034 msk = mptcp_sk(sk); in mptcp_poll()
4038 pr_debug("msk=%p state=%d flags=%lx\n", msk, state, msk->flags); in mptcp_poll()
4040 struct sock *ssk = READ_ONCE(msk->first); in mptcp_poll()
4059 mask |= mptcp_check_writeable(msk); in mptcp_poll()