Saikiran Madugula wrote:
br_nf_dev_queue_xmit only checks for ETH_P_IP packets for fragmenting but not
VLAN packets. This results in dropping of large VLAN packets. This can be
observed when connection tracking is enabled. Connection tracking re-assembles
fragmented packets, and these have to be re-fragmented when transmitting out.
Signed-off-by: Saikiran Madugula <hummerbliss@xxxxxxxxx>
---
net/bridge/br_netfilter.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 3953ac4..941f702 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -790,7 +790,7 @@ static unsigned int br_nf_local_out(unsigned int hook, struct sk_buff *skb,
static int br_nf_dev_queue_xmit(struct sk_buff *skb)
{
- if (skb->protocol == htons(ETH_P_IP) &&
+ if ((skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb)) &&
skb->len > skb->dev->mtu &&
!skb_is_gso(skb))
return ip_fragment(skb, br_dev_queue_push_xmit);
Please add an additional check for skb->nfct != NULL to make sure
that this only refragments packets defragmented by conntrack.
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