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Date:      Sun, 23 Aug 2020 21:07:39 +0000 (UTC)
From:      Michael Tuexen <tuexen@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org
Subject:   svn commit: r364543 - stable/12/sys/netinet
Message-ID:  <202008232107.07NL7dGF047940@repo.freebsd.org>

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Author: tuexen
Date: Sun Aug 23 21:07:39 2020
New Revision: 364543
URL: https://svnweb.freebsd.org/changeset/base/364543

Log:
  MFC r357705:
  Cleanup timer handling.

Modified:
  stable/12/sys/netinet/sctp_indata.c
  stable/12/sys/netinet/sctp_output.c
  stable/12/sys/netinet/sctp_pcb.c
  stable/12/sys/netinet/sctputil.c
  stable/12/sys/netinet/sctputil.h
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/netinet/sctp_indata.c
==============================================================================
--- stable/12/sys/netinet/sctp_indata.c	Sun Aug 23 21:06:41 2020	(r364542)
+++ stable/12/sys/netinet/sctp_indata.c	Sun Aug 23 21:07:39 2020	(r364543)
@@ -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 {

Modified: stable/12/sys/netinet/sctp_output.c
==============================================================================
--- stable/12/sys/netinet/sctp_output.c	Sun Aug 23 21:06:41 2020	(r364542)
+++ stable/12/sys/netinet/sctp_output.c	Sun Aug 23 21:07:39 2020	(r364543)
@@ -10074,7 +10074,8 @@ do_it_again:
 	 */
 	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;

Modified: stable/12/sys/netinet/sctp_pcb.c
==============================================================================
--- stable/12/sys/netinet/sctp_pcb.c	Sun Aug 23 21:06:41 2020	(r364542)
+++ stable/12/sys/netinet/sctp_pcb.c	Sun Aug 23 21:07:39 2020	(r364543)
@@ -3544,7 +3544,6 @@ sctp_inpcb_free(struct sctp_inpcb *inp, int immediate,
 	}
 	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
@@ -3563,7 +3562,6 @@ sctp_inpcb_free(struct sctp_inpcb *inp, int immediate,
 	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
@@ -4758,35 +4756,8 @@ sctp_free_assoc(struct sctp_inpcb *inp, struct sctp_tc
 			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);
@@ -4954,19 +4925,8 @@ sctp_free_assoc(struct sctp_inpcb *inp, struct sctp_tc
 	/*
 	 * 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.
@@ -7030,7 +6990,8 @@ 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);

Modified: stable/12/sys/netinet/sctputil.c
==============================================================================
--- stable/12/sys/netinet/sctputil.c	Sun Aug 23 21:06:41 2020	(r364542)
+++ stable/12/sys/netinet/sctputil.c	Sun Aug 23 21:07:39 2020	(r364543)
@@ -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);
 	}
 }
 

Modified: stable/12/sys/netinet/sctputil.h
==============================================================================
--- stable/12/sys/netinet/sctputil.h	Sun Aug 23 21:06:41 2020	(r364542)
+++ stable/12/sys/netinet/sctputil.h	Sun Aug 23 21:07:39 2020	(r364543)
@@ -164,6 +164,9 @@ sctp_pull_off_control_to_new_inp(struct sctp_inpcb *ol
 
 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)



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