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Subject[PATCH 3.16.y-ckt 123/129] netfilter: nft_compat: set IP6T_F_PROTO flag if protocol is set
Date
3.16.7-ckt12 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pablo Neira Ayuso <pablo@netfilter.org>

commit 749177ccc74f9c6d0f51bd78a15c652a2134aa11 upstream.

ip6tables extensions check for this flag to restrict match/target to a
given protocol. Without this flag set, SYNPROXY6 returns an error.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
net/netfilter/nft_compat.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 318e1f1b0e4c..4b8de88bb49d 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -82,6 +82,9 @@ nft_target_set_tgchk_param(struct xt_tgchk_param *par,
entry->e4.ip.invflags = inv ? IPT_INV_PROTO : 0;
break;
case AF_INET6:
+ if (proto)
+ entry->e6.ipv6.flags |= IP6T_F_PROTO;
+
entry->e6.ipv6.proto = proto;
entry->e6.ipv6.invflags = inv ? IP6T_INV_PROTO : 0;
break;
@@ -322,6 +325,9 @@ nft_match_set_mtchk_param(struct xt_mtchk_param *par, const struct nft_ctx *ctx,
entry->e4.ip.invflags = inv ? IPT_INV_PROTO : 0;
break;
case AF_INET6:
+ if (proto)
+ entry->e6.ipv6.flags |= IP6T_F_PROTO;
+
entry->e6.ipv6.proto = proto;
entry->e6.ipv6.invflags = inv ? IP6T_INV_PROTO : 0;
break;

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