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| author | Vlad Yasevich <vyasevic@redhat.com> | 2013-02-13 12:00:10 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-02-13 19:41:46 -0500 |
| commit | a37b85c9fbd1dc69fbec3985763f373203eaf9e3 (patch) | |
| tree | 3585bf258d87459b48b2d94b66dac9de729ef699 /net/bridge/br_input.c | |
| parent | 243a2e63f5f47763b802e9dee8dbf1611a1c1322 (diff) | |
| download | linux-a37b85c9fbd1dc69fbec3985763f373203eaf9e3.tar.gz linux-a37b85c9fbd1dc69fbec3985763f373203eaf9e3.tar.xz | |
bridge: Validate that vlan is permitted on ingress
When a frame arrives on a port or transmitted by the bridge,
if we have VLANs configured, validate that a given VLAN is allowed
to enter the bridge.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_input.c')
| -rw-r--r-- | net/bridge/br_input.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index 4b34207419b1..4ef3f6b17bd0 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -17,6 +17,7 @@ #include <linux/etherdevice.h> #include <linux/netfilter_bridge.h> #include <linux/export.h> +#include <linux/rculist.h> #include "br_private.h" /* Hook for brouter */ @@ -54,6 +55,9 @@ int br_handle_frame_finish(struct sk_buff *skb) if (!p || p->state == BR_STATE_DISABLED) goto drop; + if (!br_allowed_ingress(p->br, nbp_get_vlan_info(p), skb)) + goto drop; + /* insert into forwarding database after filtering to avoid spoofing */ br = p->br; br_fdb_update(br, p, eth_hdr(skb)->h_source); |