netdev - [PATCHv2 ipsec-next 08/10] ipcomp: assign if_id to child tunnel from parent tunnel

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Date:   Tue, 30 Jun 2020 15:36:33 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     netdev@...r.kernel.org
Cc:     Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Sabrina Dubroca <sd@...asysnail.net>
Subject: [PATCHv2 ipsec-next 08/10] ipcomp: assign if_id to child tunnel from parent tunnel

The child tunnel if_id will be used for xfrm interface's lookup
when processing the IP(6)IP(6) packets in the next patches.

Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 net/ipv4/ipcomp.c  | 1 +
 net/ipv6/ipcomp6.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 59bfa38..b426832 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -72,6 +72,7 @@ static struct xfrm_state *ipcomp_tunnel_create(struct xfrm_state *x)
 	t->props.flags = x->props.flags;
 	t->props.extra_flags = x->props.extra_flags;
 	memcpy(&t->mark, &x->mark, sizeof(t->mark));
+	t->if_id = x->if_id;
 
 	if (xfrm_init_state(t))
 		goto error;
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 99668bf..daef890 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -91,6 +91,7 @@ static struct xfrm_state *ipcomp6_tunnel_create(struct xfrm_state *x)
 	t->props.mode = x->props.mode;
 	memcpy(t->props.saddr.a6, x->props.saddr.a6, sizeof(struct in6_addr));
 	memcpy(&t->mark, &x->mark, sizeof(t->mark));
+	t->if_id = x->if_id;
 
 	if (xfrm_init_state(t))
 		goto error;
-- 
2.1.0