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authorHannes Frederic Sowa <hannes@stressinduktion.org>2016-06-11 18:08:19 (GMT)
committerDavid S. Miller <davem@davemloft.net>2016-06-11 22:33:26 (GMT)
commit38b7097b55b6cf30adc5ac07cb1055683224393e (patch)
tree354f839048b45dcfa415469431fa4640fd6f2652 /net/l2tp
parente69f73bfecb0178ae6bd20eb778211739cd71fab (diff)
downloadlinux-38b7097b55b6cf30adc5ac07cb1055683224393e.tar.xz
ipv6: use TOS marks from sockets for routing decision
In IPv6 the ToS values are part of the flowlabel in flowi6 and get extracted during fib rule lookup, but we forgot to correctly initialize the flowlabel before the routing lookup. Reported-by: <liam.mcbirnie@boeing.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp')
-rw-r--r--net/l2tp/l2tp_ip6.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 6c54e03..ea2ae66 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -611,6 +611,11 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
+ if (ipc6.tclass < 0)
+ ipc6.tclass = np->tclass;
+
+ fl6.flowlabel = ip6_make_flowinfo(ipc6.tclass, fl6.flowlabel);
+
dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
@@ -620,9 +625,6 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
if (ipc6.hlimit < 0)
ipc6.hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst);
- if (ipc6.tclass < 0)
- ipc6.tclass = np->tclass;
-
if (ipc6.dontfrag < 0)
ipc6.dontfrag = np->dontfrag;