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iptunnel: scrub packet in iptunnel_pull_header

Browse source 
Part of skb_scrub_packet was open coded in iptunnel_pull_header. Let it call
skb_scrub_packet directly instead.

Signed-off-by: Jiri Benc <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Jiri Benc 2016-02-18 11:22:52 +01:00 • committed by David S. Miller
commit 7f290c9435
7 changed files with 12 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

2
net/ipv4/ip_gre.c
View file

@ -238,7 +238,7 @@ static int parse_gre_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
return -EINVAL;
}
}
return iptunnel_pull_header(skb, hdr_len, tpi->proto);
return iptunnel_pull_header(skb, hdr_len, tpi->proto, false);
}
static void ipgre_err(struct sk_buff *skb, u32 info,

8
net/ipv4/ip_tunnel_core.c
View file

@ -86,7 +86,8 @@ void iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
}
EXPORT_SYMBOL_GPL(iptunnel_xmit);
int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto)
int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto,
bool xnet)
{
if (unlikely(!pskb_may_pull(skb, hdr_len)))
return -ENOMEM;
@ -109,13 +110,10 @@ int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto)
skb->protocol = inner_proto;
}
nf_reset(skb);
secpath_reset(skb);
skb_clear_hash_if_not_l4(skb);
skb_dst_drop(skb);
skb->vlan_tci = 0;
skb_set_queue_mapping(skb, 0);
skb->pkt_type = PACKET_HOST;
skb_scrub_packet(skb, xnet);
return 0;
}
EXPORT_SYMBOL_GPL(iptunnel_pull_header);

2
net/ipv4/ipip.c
View file

@ -195,7 +195,7 @@ static int ipip_rcv(struct sk_buff *skb)
if (tunnel) {
if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
goto drop;
if (iptunnel_pull_header(skb, 0, tpi.proto))
if (iptunnel_pull_header(skb, 0, tpi.proto, false))
goto drop;
return ip_tunnel_rcv(tunnel, skb, &tpi, NULL, log_ecn_error);
}