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ipv6: use TOS marks from sockets for routing decision

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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>
This commit is contained in:
Hannes Frederic Sowa
2016-06-11 20:08:19 +02:00
committed by David S. Miller
parent e69f73bfec
commit 38b7097b55
6 changed files with 23 additions and 11 deletions
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8
net/l2tp/l2tp_ip6.c
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@@ -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;