svn commit: r239984 - stable/9/sys/netinet6

[Mikolaj Golub]

Author: trociny
Date: Sat Sep  1 10:37:41 2012
New Revision: 239984
URL: http://svn.freebsd.org/changeset/base/239984

Log:
  MFC r239383:
  
  In ip6_ctloutput() guard inp_flags modifications with INP_WLOCK.

Modified:
  stable/9/sys/netinet6/ip6_output.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/netinet6/ip6_output.c
==============================================================================
--- stable/9/sys/netinet6/ip6_output.c	Sat Sep  1 10:33:53 2012	(r239983)
+++ stable/9/sys/netinet6/ip6_output.c	Sat Sep  1 10:37:41 2012	(r239984)
@@ -1618,18 +1618,22 @@ ip6_ctloutput(struct socket *so, struct 
 					break;
 #define OPTSET(bit) \
 do { \
+	INP_WLOCK(in6p); \
 	if (optval) \
 		in6p->inp_flags |= (bit); \
 	else \
 		in6p->inp_flags &= ~(bit); \
+	INP_WUNLOCK(in6p); \
 } while (/*CONSTCOND*/ 0)
 #define OPTSET2292(bit) \
 do { \
+	INP_WLOCK(in6p); \
 	in6p->inp_flags |= IN6P_RFC2292; \
 	if (optval) \
 		in6p->inp_flags |= (bit); \
 	else \
 		in6p->inp_flags &= ~(bit); \
+	INP_WUNLOCK(in6p); \
 } while (/*CONSTCOND*/ 0)
 #define OPTBIT(bit) (in6p->inp_flags & (bit) ? 1 : 0)
 
@@ -1883,6 +1887,7 @@ do { \
 				if (error)
 					break;
 
+				INP_WLOCK(in6p);
 				switch (optval) {
 				case IPV6_PORTRANGE_DEFAULT:
 					in6p->inp_flags &= ~(INP_LOWPORT);
@@ -1903,6 +1908,7 @@ do { \
 					error = EINVAL;
 					break;
 				}
+				INP_WUNLOCK(in6p);
 				break;
 
 #ifdef IPSEC