diff options
authorJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>2007-03-26 18:03:44 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:28:15 -0700
commit2d771cd86d4c3af26f34a7bcdc1b87696824cad9 (patch)
parentfa0b2d1d2196dd46527a8d028797e2bca5930a92 (diff)
[IPV4] LVS: Allow to send ICMP unreachable responses when real-servers are removed
this is a small patch by Janusz Krzysztofik to ip_route_output_slow() that allows VIP-less LVS linux director to generate packets originating >From VIP if sysctl_ip_nonlocal_bind is set. In a nutshell, the intention is for an LVS linux director to be able to send ICMP unreachable responses to end-users when real-servers are removed. http://archive.linuxvirtualserver.org/html/lvs-users/2007-01/msg00106.html Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index df9fe4f2e8c..cb76e3c725a 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2396,7 +2396,7 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
dev_out = ip_dev_find(oldflp->fl4_src);
- if (dev_out == NULL)
+ if ((dev_out == NULL) && !(sysctl_ip_nonlocal_bind))
goto out;
/* I removed check for oif == dev_out->oif here.
@@ -2407,7 +2407,7 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
of another iface. --ANK
- if (oldflp->oif == 0
+ if (dev_out && oldflp->oif == 0
&& (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
/* Special hack: user can direct multicasts
and limited broadcast via necessary interface