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| author |   Tom Herbert <therbert@google.com> | 2015-01-08 12:31:18 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-01-12 16:05:01 -0500 |
| commit | 3bf3947526c1053ddf2523f261395d682718f56c (patch) | |
| tree | 5919aa9d9cb34576a14d02d4753390ee71a6a9d6 /include | |
| parent | packet: make packet too small warning match condition (diff) | |
| download | linux-dev-3bf3947526c1053ddf2523f261395d682718f56c.tar.xz linux-dev-3bf3947526c1053ddf2523f261395d682718f56c.zip | |
vxlan: Improve support for header flags
This patch cleans up the header flags of VXLAN in anticipation of
defining some new ones:
- Move header related definitions from vxlan.c to vxlan.h
- Change VXLAN_FLAGS to be VXLAN_HF_VNI (only currently defined flag)
- Move check for unknown flags to after we find vxlan_sock, this
assumes that some flags may be processed based on tunnel
configuration
- Add a comment about why the stack treating unknown set flags as an
error instead of ignoring them
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/vxlan.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h index 903461aa5644..a0d80736224f 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -17,6 +17,13 @@ struct vxlanhdr { __be32 vx_vni; }; +/* VXLAN header flags. */ +#define VXLAN_HF_VNI 0x08000000 + +#define VXLAN_N_VID (1u << 24) +#define VXLAN_VID_MASK (VXLAN_N_VID - 1) +#define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr)) + struct vxlan_sock; typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key); |