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| author |   Eric Dumazet <edumazet@google.com> | 2019-07-01 06:39:36 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-07-01 10:54:51 -0700 |
| commit | a346abe051bd2bd0d5d0140b2da9ec95639acad7 (patch) | |
| tree | 1e03874ac049b3d298d382e678a84b68f7ce5f12 /net/ipv6/icmp.c | |
| parent | Merge tag 'mlx5e-updates-2019-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux (diff) | |
| download | linux-dev-a346abe051bd2bd0d5d0140b2da9ec95639acad7.tar.xz linux-dev-a346abe051bd2bd0d5d0140b2da9ec95639acad7.zip | |
ipv6: icmp: allow flowlabel reflection in echo replies
Extend flowlabel_reflect bitmask to allow conditional
reflection of incoming flowlabels in echo replies.
Note this has precedence against auto flowlabels.
Add flowlabel_reflect enum to replace hard coded
values.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/icmp.c')
| -rw-r--r-- | net/ipv6/icmp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 12906301ec7b..62c997201970 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -703,6 +703,9 @@ static void icmpv6_echo_reply(struct sk_buff *skb) tmp_hdr.icmp6_type = ICMPV6_ECHO_REPLY; memset(&fl6, 0, sizeof(fl6)); + if (net->ipv6.sysctl.flowlabel_reflect & FLOWLABEL_REFLECT_ICMPV6_ECHO_REPLIES) + fl6.flowlabel = ip6_flowlabel(ipv6_hdr(skb)); + fl6.flowi6_proto = IPPROTO_ICMPV6; fl6.daddr = ipv6_hdr(skb)->saddr; if (saddr) |