target/linux/generic/patches-3.10/668-fix-ipv6-throw-routes.patch

   1 From 9cd600244515bd4540898411ab781a97f0cc387f Mon Sep 17 00:00:00 2001
   2 From: Steven Barth <steven@midlink.org>
   3 Date: Thu, 19 Mar 2015 11:54:50 +0100
   4 Subject: [PATCH] ipv6: fix backtracking for throw routes
   5
   6 for throw routes to trigger evaluation of other policy rules
   7 EAGAIN needs to be propagated up to fib_rules_lookup
   8 similar to how its done for IPv4
   9
  10 A simple testcase for verification is:
  11
  12 ip -6 rule add lookup 33333 priority 33333
  13 ip -6 route add throw 2001:db8::1
  14 ip -6 route add 2001:db8::1 via fe80::1 dev wlan0 table 33333
  15 ip route get 2001:db8::1
  16
  17 Signed-off-by: Steven Barth <cyrus@openwrt.org>
  18 ---
  19  net/ipv6/fib6_rules.c | 1 +
  20  1 file changed, 1 insertion(+)
  21
  22 diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
  23 index b4d5e1d..27ca796 100644
  24 --- a/net/ipv6/fib6_rules.c
  25 +++ b/net/ipv6/fib6_rules.c
  26 @@ -104,6 +104,7 @@ static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
  27                                 goto again;
  28                         flp6->saddr = saddr;
  29                 }
  30 +               err = rt->dst.error;
  31                 goto out;
  32         }
  33  again:
  34 --
  35 2.1.4
  36