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authorJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>2007-03-26 21:03:44 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 01:28:15 -0400
commit2d771cd86d4c3af26f34a7bcdc1b87696824cad9 (patch)
treedcc026c42253c82d95167e22e658e163f1963db6 /net/ipv4/route.c
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>
Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r--net/ipv4/route.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index df9fe4f2e8cc..cb76e3c725a0 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)
2396 2396
2397 /* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */ 2397 /* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
2398 dev_out = ip_dev_find(oldflp->fl4_src); 2398 dev_out = ip_dev_find(oldflp->fl4_src);
2399 if (dev_out == NULL) 2399 if ((dev_out == NULL) && !(sysctl_ip_nonlocal_bind))
2400 goto out; 2400 goto out;
2401 2401
2402 /* I removed check for oif == dev_out->oif here. 2402 /* 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)
2407 of another iface. --ANK 2407 of another iface. --ANK
2408 */ 2408 */
2409 2409
2410 if (oldflp->oif == 0 2410 if (dev_out && oldflp->oif == 0
2411 && (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF))) { 2411 && (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
2412 /* Special hack: user can direct multicasts 2412 /* Special hack: user can direct multicasts
2413 and limited broadcast via necessary interface 2413 and limited broadcast via necessary interface