[PATCH net-next 3/5] ipv6: sr: enforce IPv6 packets for seg6local lwt
flat view
STALE3341d
SUPERSEDED
From: David Lebrun <hidden>
Date: 2017-08-23 15:31:52
Subsystem:
networking [general], networking [srv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Andrea Mayer, Linus Torvalds
Revision v1 of 2 in this series.
Revisions (2)
- v1 current
- v2 [diff vs current]
This patch ensures that the seg6local lightweight tunnel is used solely with IPv6 routes and processes only IPv6 packets. Signed-off-by: David Lebrun <redacted> --- net/ipv6/seg6_local.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 609b94e..c626325 100644
--- a/net/ipv6/seg6_local.c
+++ b/net/ipv6/seg6_local.c@@ -357,6 +357,11 @@ static int seg6_local_input(struct sk_buff *skb) struct seg6_action_desc *desc; struct seg6_local_lwt *slwt; + if (skb->protocol != htons(ETH_P_IPV6)) { + kfree_skb(skb); + return -EINVAL; + } + slwt = seg6_local_lwtunnel(orig_dst->lwtstate); desc = slwt->desc;
@@ -623,6 +628,9 @@ static int seg6_local_build_state(struct nlattr *nla, unsigned int family, struct seg6_local_lwt *slwt; int err; + if (family != AF_INET6) + return -EINVAL; + err = nla_parse_nested(tb, SEG6_LOCAL_MAX, nla, seg6_local_policy, extack);
--
2.10.2