diff options
| author | David S. Miller <davem@davemloft.net> | 2016-09-22 01:34:26 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-09-22 01:34:26 -0400 |
| commit | 1fbafcb84747d0784fe928bedc4189f47d18ad8f (patch) | |
| tree | 342f1160ba3a5491dadba70104586cf9c69a083c /net/core | |
| parent | 688dc5369a6311c4d60f8908698c1999910d659f (diff) | |
| parent | 45a497f2d149a4a8061c61518a79d59f1f3034b2 (diff) | |
Merge branch 'vlan_act_modify'
Shmulik Ladkani says:
====================
act_vlan: Introduce TCA_VLAN_ACT_MODIFY vlan action
TCA_VLAN_ACT_MODIFY allows one to change an existing tag.
It accepts same attributes as TCA_VLAN_ACT_PUSH (protocol, id,
priority).
If packet is vlan tagged, then the tag gets overwritten according to
user specified attributes.
For example, this allows user to replace a tag's vid while preserving
its priority bits (as opposed to "action vlan pop pipe action vlan push").
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/skbuff.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 7bf82a28e10a..6c22351bd519 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4522,8 +4522,10 @@ int skb_ensure_writable(struct sk_buff *skb, int write_len) } EXPORT_SYMBOL(skb_ensure_writable); -/* remove VLAN header from packet and update csum accordingly. */ -static int __skb_vlan_pop(struct sk_buff *skb, u16 *vlan_tci) +/* remove VLAN header from packet and update csum accordingly. + * expects a non skb_vlan_tag_present skb with a vlan tag payload + */ +int __skb_vlan_pop(struct sk_buff *skb, u16 *vlan_tci) { struct vlan_hdr *vhdr; unsigned int offset = skb->data - skb_mac_header(skb); @@ -4554,6 +4556,7 @@ pull: return err; } +EXPORT_SYMBOL(__skb_vlan_pop); int skb_vlan_pop(struct sk_buff *skb) { |