br_parse_ip_options() does not parse any IP options, it validates IP
packets as a whole and the function name is misleading.
Rename br_parse_ip_options() to br_validate_ipv4() and remove unneeded
commments.
Signed-off-by: Bernhard Thaler <bernhard.thaler@xxxxxxxx>
---
Patch revision history:
v6
* put this patch in front of "netfilter: bridge: forward IPv6 fragmented
packets"
v5
* rebase to current davem/net-next
v4
* re-post due to errors in v3 formatting introduced by my MUA
v3
* re-assignment of iph variable needed because pskb_may_pull() can
invalidate the network header
* same patch as v1 again
v2
* first patch did not contain statement removing double iph variable
assignment
net/bridge/br_netfilter.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 1f30b28..962d5f8 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -216,7 +216,7 @@ static inline void nf_bridge_pull_encap_header_rcsum(struct sk_buff *skb)
* expected format
*/
-static int br_parse_ip_options(struct sk_buff *skb)
+static int br_validate_ipv4(struct sk_buff *skb)
{
const struct iphdr *iph;
struct net_device *dev = skb->dev;
@@ -692,7 +692,7 @@ static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
nf_bridge_pull_encap_header_rcsum(skb);
- if (br_parse_ip_options(skb))
+ if (br_validate_ipv4(skb))
return NF_DROP;
nf_bridge_put(skb->nf_bridge);
@@ -802,7 +802,7 @@ static unsigned int br_nf_forward_ip(const struct nf_hook_ops *ops,
}
if (pf == NFPROTO_IPV4) {
- if (br_parse_ip_options(skb))
+ if (br_validate_ipv4(skb))
return NF_DROP;
IPCB(skb)->frag_max_size = nf_bridge->frag_max_size;
}
@@ -913,8 +913,7 @@ static int br_nf_dev_queue_xmit(struct sock *sk, struct sk_buff *skb)
if (skb->len + mtu_reserved > skb->dev->mtu) {
struct brnf_frag_data *data;
- if (br_parse_ip_options(skb))
- /* Drop invalid packet */
+ if (br_validate_ipv4(skb))
return NF_DROP;
IPCB(skb)->frag_max_size = nf_bridge->frag_max_size;
--
1.7.10.4
--
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