From 15dd098e15146a0219c2f4cd9fddd09cb819b9ac Mon Sep 17 00:00:00 2001 From: tuexen Date: Sun, 9 Feb 2020 22:05:41 +0000 Subject: [PATCH] Cleanup timer handling. Submitted by: Taylor Brandstetter MFC after: 1 week --- sys/netinet/sctp_indata.c | 3 +- sys/netinet/sctp_output.c | 9 +++--- sys/netinet/sctp_pcb.c | 49 +++-------------------------- sys/netinet/sctputil.c | 66 +++++++++++++++++++++++++++++++++------ sys/netinet/sctputil.h | 3 ++ 5 files changed, 72 insertions(+), 58 deletions(-) diff --git a/sys/netinet/sctp_indata.c b/sys/netinet/sctp_indata.c index 9229c8037edc..c250cef54e2a 100644 --- a/sys/netinet/sctp_indata.c +++ b/sys/netinet/sctp_indata.c @@ -2663,7 +2663,8 @@ sctp_sack_check(struct sctp_tcb *stcb, int was_a_gap) * is pending, we got our first packet OR * there are gaps or duplicates. */ - (void)SCTP_OS_TIMER_STOP(&stcb->asoc.dack_timer.timer); + sctp_timer_stop(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL, + SCTP_FROM_SCTP_INDATA + SCTP_LOC_19); sctp_send_sack(stcb, SCTP_SO_NOT_LOCKED); } } else { diff --git a/sys/netinet/sctp_output.c b/sys/netinet/sctp_output.c index 655390677e61..424f9803237c 100644 --- a/sys/netinet/sctp_output.c +++ b/sys/netinet/sctp_output.c @@ -10074,7 +10074,8 @@ sctp_chunk_output(struct sctp_inpcb *inp, */ if (SCTP_OS_TIMER_PENDING(&stcb->asoc.dack_timer.timer)) { sctp_send_sack(stcb, so_locked); - (void)SCTP_OS_TIMER_STOP(&stcb->asoc.dack_timer.timer); + sctp_timer_stop(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL, + SCTP_FROM_SCTP_OUTPUT + SCTP_LOC_3); } while (asoc->sent_queue_retran_cnt) { /*- @@ -10603,7 +10604,7 @@ sctp_send_sack(struct sctp_tcb *stcb, int so_locked if (stcb->asoc.delayed_ack) { sctp_timer_stop(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL, - SCTP_FROM_SCTP_OUTPUT + SCTP_LOC_3); + SCTP_FROM_SCTP_OUTPUT + SCTP_LOC_4); sctp_timer_start(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL); } else { @@ -10672,7 +10673,7 @@ sctp_send_sack(struct sctp_tcb *stcb, int so_locked if (stcb->asoc.delayed_ack) { sctp_timer_stop(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL, - SCTP_FROM_SCTP_OUTPUT + SCTP_LOC_4); + SCTP_FROM_SCTP_OUTPUT + SCTP_LOC_5); sctp_timer_start(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL); } else { @@ -12834,7 +12835,7 @@ sctp_lower_sosend(struct socket *so, if (control) { if (sctp_process_cmsgs_for_init(stcb, control, &error)) { sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, - SCTP_FROM_SCTP_OUTPUT + SCTP_LOC_5); + SCTP_FROM_SCTP_OUTPUT + SCTP_LOC_6); hold_tcblock = 0; stcb = NULL; goto out_unlocked; diff --git a/sys/netinet/sctp_pcb.c b/sys/netinet/sctp_pcb.c index d07b89933dec..d61c102ee80b 100644 --- a/sys/netinet/sctp_pcb.c +++ b/sys/netinet/sctp_pcb.c @@ -3547,7 +3547,6 @@ sctp_inpcb_free(struct sctp_inpcb *inp, int immediate, int from) } if (cnt) { /* Ok we have someone out there that will kill us */ - (void)SCTP_OS_TIMER_STOP(&inp->sctp_ep.signature_change.timer); #ifdef SCTP_LOG_CLOSING sctp_log_closing(inp, NULL, 3); #endif @@ -3566,7 +3565,6 @@ sctp_inpcb_free(struct sctp_inpcb *inp, int immediate, int from) if ((inp->refcount) || (being_refed) || (inp->sctp_flags & SCTP_PCB_FLAGS_CLOSE_IP)) { - (void)SCTP_OS_TIMER_STOP(&inp->sctp_ep.signature_change.timer); #ifdef SCTP_LOG_CLOSING sctp_log_closing(inp, NULL, 4); #endif @@ -4761,35 +4759,8 @@ sctp_free_assoc(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int from_inpcbfre return (0); } } - /* now clean up any other timers */ - (void)SCTP_OS_TIMER_STOP(&asoc->dack_timer.timer); - asoc->dack_timer.self = NULL; - (void)SCTP_OS_TIMER_STOP(&asoc->strreset_timer.timer); - /*- - * For stream reset we don't blast this unless - * it is a str-reset timer, it might be the - * free-asoc timer which we DON'T want to - * disturb. - */ - if (asoc->strreset_timer.type == SCTP_TIMER_TYPE_STRRESET) - asoc->strreset_timer.self = NULL; - (void)SCTP_OS_TIMER_STOP(&asoc->asconf_timer.timer); - asoc->asconf_timer.self = NULL; - (void)SCTP_OS_TIMER_STOP(&asoc->autoclose_timer.timer); - asoc->autoclose_timer.self = NULL; - (void)SCTP_OS_TIMER_STOP(&asoc->shut_guard_timer.timer); - asoc->shut_guard_timer.self = NULL; - /* Mobility adaptation */ - (void)SCTP_OS_TIMER_STOP(&asoc->delete_prim_timer.timer); - asoc->delete_prim_timer.self = NULL; - TAILQ_FOREACH(net, &asoc->nets, sctp_next) { - (void)SCTP_OS_TIMER_STOP(&net->rxt_timer.timer); - net->rxt_timer.self = NULL; - (void)SCTP_OS_TIMER_STOP(&net->pmtu_timer.timer); - net->pmtu_timer.self = NULL; - (void)SCTP_OS_TIMER_STOP(&net->hb_timer.timer); - net->hb_timer.self = NULL; - } + /* Now clean up any other timers */ + sctp_stop_association_timers(stcb, false); /* Now the read queue needs to be cleaned up (only once) */ if ((stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) == 0) { SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_ABOUT_TO_BE_FREED); @@ -4957,19 +4928,8 @@ sctp_free_assoc(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int from_inpcbfre /* * Now restop the timers to be sure this is paranoia at is finest! */ - (void)SCTP_OS_TIMER_STOP(&asoc->strreset_timer.timer); - (void)SCTP_OS_TIMER_STOP(&asoc->dack_timer.timer); - (void)SCTP_OS_TIMER_STOP(&asoc->strreset_timer.timer); - (void)SCTP_OS_TIMER_STOP(&asoc->asconf_timer.timer); - (void)SCTP_OS_TIMER_STOP(&asoc->shut_guard_timer.timer); - (void)SCTP_OS_TIMER_STOP(&asoc->autoclose_timer.timer); - TAILQ_FOREACH(net, &asoc->nets, sctp_next) { - (void)SCTP_OS_TIMER_STOP(&net->rxt_timer.timer); - (void)SCTP_OS_TIMER_STOP(&net->pmtu_timer.timer); - (void)SCTP_OS_TIMER_STOP(&net->hb_timer.timer); - } + sctp_stop_association_timers(stcb, true); - asoc->strreset_timer.type = SCTP_TIMER_TYPE_NONE; /* * The chunk lists and such SHOULD be empty but we check them just * in case. @@ -7033,7 +6993,8 @@ sctp_drain_mbufs(struct sctp_tcb *stcb) * asoc->highest_tsn_inside_map? */ asoc->last_revoke_count = cnt; - (void)SCTP_OS_TIMER_STOP(&stcb->asoc.dack_timer.timer); + sctp_timer_stop(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL, + SCTP_FROM_SCTP_PCB + SCTP_LOC_16); /* sa_ignore NO_NULL_CHK */ sctp_send_sack(stcb, SCTP_SO_NOT_LOCKED); sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_DRAIN, SCTP_SO_NOT_LOCKED); diff --git a/sys/netinet/sctputil.c b/sys/netinet/sctputil.c index 2804a59dac6a..cd4a3ca95b2d 100644 --- a/sys/netinet/sctputil.c +++ b/sys/netinet/sctputil.c @@ -780,18 +780,66 @@ sctp_audit_log(uint8_t ev, uint8_t fd) void sctp_stop_timers_for_shutdown(struct sctp_tcb *stcb) { - struct sctp_association *asoc; + struct sctp_inpcb *inp; struct sctp_nets *net; - asoc = &stcb->asoc; + inp = stcb->sctp_ep; - (void)SCTP_OS_TIMER_STOP(&asoc->dack_timer.timer); - (void)SCTP_OS_TIMER_STOP(&asoc->strreset_timer.timer); - (void)SCTP_OS_TIMER_STOP(&asoc->asconf_timer.timer); - (void)SCTP_OS_TIMER_STOP(&asoc->autoclose_timer.timer); - TAILQ_FOREACH(net, &asoc->nets, sctp_next) { - (void)SCTP_OS_TIMER_STOP(&net->pmtu_timer.timer); - (void)SCTP_OS_TIMER_STOP(&net->hb_timer.timer); + sctp_timer_stop(SCTP_TIMER_TYPE_RECV, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_12); + sctp_timer_stop(SCTP_TIMER_TYPE_STRRESET, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_13); + sctp_timer_stop(SCTP_TIMER_TYPE_ASCONF, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_14); + sctp_timer_stop(SCTP_TIMER_TYPE_AUTOCLOSE, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_15); + TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { + sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_16); + sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_17); + } +} + +void +sctp_stop_association_timers(struct sctp_tcb *stcb, bool stop_assoc_kill_timer) +{ + struct sctp_inpcb *inp; + struct sctp_nets *net; + + inp = stcb->sctp_ep; + sctp_timer_stop(SCTP_TIMER_TYPE_RECV, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_18); + sctp_timer_stop(SCTP_TIMER_TYPE_STRRESET, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_19); + if (stop_assoc_kill_timer) { + sctp_timer_stop(SCTP_TIMER_TYPE_ASOCKILL, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_20); + } + sctp_timer_stop(SCTP_TIMER_TYPE_ASCONF, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_21); + sctp_timer_stop(SCTP_TIMER_TYPE_AUTOCLOSE, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_22); + sctp_timer_stop(SCTP_TIMER_TYPE_SHUTDOWNGUARD, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_23); + /* Mobility adaptation */ + sctp_timer_stop(SCTP_TIMER_TYPE_PRIM_DELETED, inp, stcb, NULL, + SCTP_FROM_SCTPUTIL + SCTP_LOC_24); + TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { + sctp_timer_stop(SCTP_TIMER_TYPE_SEND, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_25); + sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_26); + sctp_timer_stop(SCTP_TIMER_TYPE_SHUTDOWN, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_27); + sctp_timer_stop(SCTP_TIMER_TYPE_COOKIE, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_28); + sctp_timer_stop(SCTP_TIMER_TYPE_SHUTDOWNACK, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_29); + sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_30); + sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, + SCTP_FROM_SCTPUTIL + SCTP_LOC_31); } } diff --git a/sys/netinet/sctputil.h b/sys/netinet/sctputil.h index c67c021fd30d..031ad615a0f3 100644 --- a/sys/netinet/sctputil.h +++ b/sys/netinet/sctputil.h @@ -164,6 +164,9 @@ sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp, void sctp_stop_timers_for_shutdown(struct sctp_tcb *); +/* Stop all timers for association and remote addresses. */ +void sctp_stop_association_timers(struct sctp_tcb *, bool); + void sctp_report_all_outbound(struct sctp_tcb *, uint16_t, int, int #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)