diff options
| -rw-r--r-- | include/linux/skbuff.h | 5 | ||||
| -rw-r--r-- | net/8021q/vlan_core.c | 4 | ||||
| -rw-r--r-- | net/core/dev.c | 17 |
3 files changed, 20 insertions, 6 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index bf243fc..f89e7fd 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -380,7 +380,10 @@ struct sk_buff { kmemcheck_bitfield_begin(flags2); __u16 queue_mapping:16; #ifdef CONFIG_IPV6_NDISC_NODETYPE - __u8 ndisc_nodetype:2; + __u8 ndisc_nodetype:2, + deliver_no_wcard:1; +#else + __u8 deliver_no_wcard:1; #endif kmemcheck_bitfield_end(flags2); diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index bd537fc..50f58f5f 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -12,7 +12,7 @@ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp, return NET_RX_DROP; if (skb_bond_should_drop(skb, ACCESS_ONCE(skb->dev->master))) - goto drop; + skb->deliver_no_wcard = 1; skb->skb_iif = skb->dev->ifindex; __vlan_hwaccel_put_tag(skb, vlan_tci); @@ -84,7 +84,7 @@ vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp, struct sk_buff *p; if (skb_bond_should_drop(skb, ACCESS_ONCE(skb->dev->master))) - goto drop; + skb->deliver_no_wcard = 1; skb->skb_iif = skb->dev->ifindex; __vlan_hwaccel_put_tag(skb, vlan_tci); diff --git a/net/core/dev.c b/net/core/dev.c index 14a8568..2b3bf53 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2810,13 +2810,24 @@ static int __netif_receive_skb(struct sk_buff *skb) if (!skb->skb_iif) skb->skb_iif = skb->dev->ifindex; + /* + * bonding note: skbs received on inactive slaves should only + * be delivered to pkt handlers that are exact matches. Also + * the deliver_no_wcard flag will be set. If packet handlers + * are sensitive to duplicate packets these skbs will need to + * be dropped at the handler. The vlan accel path may have + * already set the deliver_no_wcard flag. + */ null_or_orig = NULL; orig_dev = skb->dev; master = ACCESS_ONCE(orig_dev->master); - if (master) { - if (skb_bond_should_drop(skb, master)) + if (skb->deliver_no_wcard) + null_or_orig = orig_dev; + else if (master) { + if (skb_bond_should_drop(skb, master)) { + skb->deliver_no_wcard = 1; null_or_orig = orig_dev; /* deliver only exact match */ - else + } else skb->dev = master; } |
