Date: Wed, 24 Apr 2013 18:30:32 +0000 (UTC) From: Randall Stewart <rrs@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r249848 - head/sys/netinet Message-ID: <201304241830.r3OIUWiZ073002@svn.freebsd.org>
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Author: rrs Date: Wed Apr 24 18:30:32 2013 New Revision: 249848 URL: http://svnweb.freebsd.org/changeset/base/249848 Log: This fixes the issue with the "randomly changing" default route. What it was is there are two places in ip_output.c where we do a goto again. One place was fine, it copies out the new address and then resets dst = ro->rt_dst; But the other place does *not* do that, which means earlier when we found the gateway, we have dst pointing there aka dst = ro->rt_gateway is done.. then we do a goto again.. bam now we clobber the default route. The fix is just to move the again so we are always doing dst = &ro->rt_dst; in the again loop. PR: 174749,157796 MFC after: 1 week Modified: head/sys/netinet/ip_output.c Modified: head/sys/netinet/ip_output.c ============================================================================== --- head/sys/netinet/ip_output.c Wed Apr 24 18:00:28 2013 (r249847) +++ head/sys/netinet/ip_output.c Wed Apr 24 18:30:32 2013 (r249848) @@ -196,8 +196,8 @@ ip_output(struct mbuf *m, struct mbuf *o hlen = ip->ip_hl << 2; } - dst = (struct sockaddr_in *)&ro->ro_dst; again: + dst = (struct sockaddr_in *)&ro->ro_dst; ia = NULL; /* * If there is a cached route,
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