summaryrefslogtreecommitdiff
path: root/include/net/vxlan.h
diff options
context:
space:
mode:
authorVladimir Nikishkin <vladimir@nikishkin.pw>2023-05-12 06:40:33 +0300
committerDavid S. Miller <davem@davemloft.net>2023-05-13 19:02:33 +0300
commit69474a8a5837be63f13c6f60a7d622b98ed5c539 (patch)
tree82cff7f3e374b31c188fc582bfbf876f7cc6aade /include/net/vxlan.h
parent7eef636ecc58b3bf330cd25d9129e2f2d379a65a (diff)
downloadlinux-69474a8a5837be63f13c6f60a7d622b98ed5c539.tar.xz
net: vxlan: Add nolocalbypass option to vxlan.
If a packet needs to be encapsulated towards a local destination IP, the packet will undergo a "local bypass" and be injected into the Rx path as if it was received by the target VXLAN device without undergoing encapsulation. If such a device does not exist, the packet will be dropped. There are scenarios where we do not want to perform such a bypass, but instead want the packet to be encapsulated and locally received by a user space program for post-processing. To that end, add a new VXLAN device attribute that controls whether a "local bypass" is performed or not. Default to performing a bypass to maintain existing behavior. Signed-off-by: Vladimir Nikishkin <vladimir@nikishkin.pw> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/vxlan.h')
-rw-r--r--include/net/vxlan.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 20bd7d893e10..0be91ca78d3a 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -328,6 +328,7 @@ struct vxlan_dev {
#define VXLAN_F_TTL_INHERIT 0x10000
#define VXLAN_F_VNIFILTER 0x20000
#define VXLAN_F_MDB 0x40000
+#define VXLAN_F_LOCALBYPASS 0x80000
/* Flags that are used in the receive path. These flags must match in
* order for a socket to be shareable
@@ -348,7 +349,8 @@ struct vxlan_dev {
VXLAN_F_UDP_ZERO_CSUM6_TX | \
VXLAN_F_UDP_ZERO_CSUM6_RX | \
VXLAN_F_COLLECT_METADATA | \
- VXLAN_F_VNIFILTER)
+ VXLAN_F_VNIFILTER | \
+ VXLAN_F_LOCALBYPASS)
struct net_device *vxlan_dev_create(struct net *net, const char *name,
u8 name_assign_type, struct vxlan_config *conf);