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Date:      Mon, 18 Jan 2010 21:25:12 +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-7@freebsd.org
Subject:   svn commit: r202592 - stable/7/sys/netinet
Message-ID:  <201001182125.o0ILPC3o082280@svn.freebsd.org>
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Author: tuexen
Date: Mon Jan 18 21:25:12 2010
New Revision: 202592
URL: http://svn.freebsd.org/changeset/base/202592

Log:
  MFC 193089:
  Fix a small memory leak from the nr-sack code - the mapping array
  was not being freed at term of association. Also get rid of
  the MICHAELS_EXP code.

Modified:
  stable/7/sys/netinet/sctp_pcb.c
  stable/7/sys/netinet/sctputil.c
Directory Properties:
  stable/7/sys/   (props changed)
  stable/7/sys/cddl/contrib/opensolaris/   (props changed)
  stable/7/sys/contrib/dev/acpica/   (props changed)
  stable/7/sys/contrib/pf/   (props changed)

Modified: stable/7/sys/netinet/sctp_pcb.c
==============================================================================
--- stable/7/sys/netinet/sctp_pcb.c	Mon Jan 18 21:17:03 2010	(r202591)
+++ stable/7/sys/netinet/sctp_pcb.c	Mon Jan 18 21:25:12 2010	(r202592)
@@ -4102,9 +4102,6 @@ sctp_aloc_assoc(struct sctp_inpcb *inp, 
 	head = &SCTP_BASE_INFO(sctp_asochash)[SCTP_PCBHASH_ASOC(stcb->asoc.my_vtag, SCTP_BASE_INFO(hashasocmark))];
 	/* put it in the bucket in the vtag hash of assoc's for the system */
 	LIST_INSERT_HEAD(head, stcb, sctp_asocs);
-#ifdef MICHAELS_EXPERIMENT
-	sctp_delete_from_timewait(stcb->asoc.my_vtag, inp->sctp_lport, stcb->rport);
-#endif
 	SCTP_INP_INFO_WUNLOCK();
 
 	if ((err = sctp_add_remote_addr(stcb, firstaddr, SCTP_DO_SETSCOPE, SCTP_ALLOC_ASOC))) {
@@ -4117,6 +4114,10 @@ sctp_aloc_assoc(struct sctp_inpcb *inp, 
 			SCTP_FREE(asoc->mapping_array, SCTP_M_MAP);
 			asoc->mapping_array = NULL;
 		}
+		if (asoc->nr_mapping_array) {
+			SCTP_FREE(asoc->nr_mapping_array, SCTP_M_MAP);
+			asoc->nr_mapping_array = NULL;
+		}
 		SCTP_DECR_ASOC_COUNT();
 		SCTP_TCB_LOCK_DESTROY(stcb);
 		SCTP_TCB_SEND_LOCK_DESTROY(stcb);
@@ -4879,6 +4880,10 @@ sctp_free_assoc(struct sctp_inpcb *inp, 
 		SCTP_FREE(asoc->mapping_array, SCTP_M_MAP);
 		asoc->mapping_array = NULL;
 	}
+	if (asoc->nr_mapping_array) {
+		SCTP_FREE(asoc->nr_mapping_array, SCTP_M_MAP);
+		asoc->nr_mapping_array = NULL;
+	}
 	/* the stream outs */
 	if (asoc->strmout) {
 		SCTP_FREE(asoc->strmout, SCTP_M_STRMO);
@@ -6361,21 +6366,6 @@ skip_vtag_check:
 		}
 	}
 	SCTP_INP_INFO_RUNLOCK();
-#ifdef MICHAELS_EXPERIMENT
-	/*-
-	 * Not found, ok to use the tag, add it to the time wait hash
-	 * as well this will prevent two sucessive cookies from getting
-	 * the same tag or two inits sent quickly on multi-processors.
-	 * We only keep the tag for the life of a cookie and when we
-	 * add this tag to the assoc hash we need to purge it from
-	 * the t-wait hash.
-	 */
-	SCTP_INP_INFO_WLOCK();
-	if (save_in_twait)
-		sctp_add_vtag_to_timewait(tag, TICKS_TO_SEC(inp->sctp_ep.def_cookie_life, lport, rport));
-	SCTP_INP_INFO_WUNLOCK();
-#endif
-
 	return (1);
 }
 

Modified: stable/7/sys/netinet/sctputil.c
==============================================================================
--- stable/7/sys/netinet/sctputil.c	Mon Jan 18 21:17:03 2010	(r202591)
+++ stable/7/sys/netinet/sctputil.c	Mon Jan 18 21:25:12 2010	(r202592)
@@ -912,24 +912,7 @@ sctp_init_asoc(struct sctp_inpcb *m, str
 #endif
 	asoc->sb_send_resv = 0;
 	if (override_tag) {
-#ifdef MICHAELS_EXPERIMENT
-		if (sctp_is_in_timewait(override_tag, stcb->sctp_ep->sctp_lport, stcb->rport)) {
-			/*
-			 * It must be in the time-wait hash, we put it there
-			 * when we aloc one. If not the peer is playing
-			 * games.
-			 */
-			asoc->my_vtag = override_tag;
-		} else {
-			SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM);
-#ifdef INVARIANTS
-			panic("Huh is_in_timewait fails");
-#endif
-			return (ENOMEM);
-		}
-#else
 		asoc->my_vtag = override_tag;
-#endif
 	} else {
 		asoc->my_vtag = sctp_select_a_tag(m, stcb->sctp_ep->sctp_lport, stcb->rport, 1);
 	}
@@ -1154,11 +1137,12 @@ sctp_init_asoc(struct sctp_inpcb *m, str
 	asoc->nr_mapping_array_size = SCTP_INITIAL_NR_MAPPING_ARRAY;
 	SCTP_MALLOC(asoc->nr_mapping_array, uint8_t *, asoc->nr_mapping_array_size,
 	    SCTP_M_MAP);
-	/*
-	 * if (asoc->nr_mapping_array == NULL) { SCTP_FREE(asoc->strmout,
-	 * SCTP_M_STRMO); SCTP_LTRACE_ERR_RET(NULL, stcb, NULL,
-	 * SCTP_FROM_SCTPUTIL, ENOMEM); return (ENOMEM); }
-	 */
+	if (asoc->nr_mapping_array == NULL) {
+		SCTP_FREE(asoc->strmout, SCTP_M_STRMO);
+		SCTP_FREE(asoc->mapping_array, SCTP_M_MAP);
+		SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM);
+		return (ENOMEM);
+	}
 	memset(asoc->nr_mapping_array, 0, asoc->nr_mapping_array_size);
 
 	/* Now the init of the other outqueues */

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