svn commit: r191342 - head/sys/net
Robert Watson
rwatson at FreeBSD.org
Mon Apr 20 23:23:32 UTC 2009
Author: rwatson
Date: Mon Apr 20 23:23:31 2009
New Revision: 191342
URL: http://svn.freebsd.org/changeset/base/191342
Log:
Acquire address list lock before walking an interface's address list to
identify possible jail addresses on it for IPv4 and IPv6.
MFC after: 2 weeks
Modified:
head/sys/net/rtsock.c
Modified: head/sys/net/rtsock.c
==============================================================================
--- head/sys/net/rtsock.c Mon Apr 20 22:56:34 2009 (r191341)
+++ head/sys/net/rtsock.c Mon Apr 20 23:23:31 2009 (r191342)
@@ -356,6 +356,7 @@ rtm_get_jailed(struct rt_addrinfo *info,
* Try to find an address on the given outgoing interface
* that belongs to the jail.
*/
+ IF_ADDR_LOCK(ifp);
TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
struct sockaddr *sa;
sa = ifa->ifa_addr;
@@ -367,6 +368,7 @@ rtm_get_jailed(struct rt_addrinfo *info,
break;
}
}
+ IF_ADDR_UNLOCK(ifp);
if (!found) {
/*
* As a last resort return the 'default' jail address.
@@ -394,6 +396,7 @@ rtm_get_jailed(struct rt_addrinfo *info,
* Try to find an address on the given outgoing interface
* that belongs to the jail.
*/
+ IF_ADDR_LOCK(ifp);
TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
struct sockaddr *sa;
sa = ifa->ifa_addr;
@@ -406,6 +409,7 @@ rtm_get_jailed(struct rt_addrinfo *info,
break;
}
}
+ IF_ADDR_UNLOCK(ifp);
if (!found) {
/*
* As a last resort return the 'default' jail address.
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