mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-03-01 01:49:19 -05:00
Code Issues Packages Projects Releases Wiki Activity

net sched ife action: Introduce skb tcindex metadata encap decap

Browse Source 
Sample use case of how this is encoded:
user space via tuntap (or a connected VM/Machine/container)
encodes the tcindex TLV.

Sample use case of decoding:
IFE action decodes it and the skb->tc_index is then used to classify.
So something like this for encoded ICMP packets:

.. first decode then reclassify... skb->tcindex will be set
sudo $TC filter add dev $ETH parent ffff: prio 2 protocol 0xbeef \
u32 match u32 0 0 flowid 1:1 \
action ife decode reclassify

...next match the decode icmp packet...
sudo $TC filter add dev $ETH parent ffff: prio 4 protocol ip \
u32 match ip protocol 1 0xff flowid 1:1 \
action continue

... last classify it using the tcindex classifier and do someaction..
sudo $TC filter add dev $ETH parent ffff: prio 5 protocol ip \
handle 0x11 tcindex classid 1:1 \
action blah..

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jamal Hadi Salim
2016-09-18 07:31:43 -04:00
committed by David S. Miller
parent 6a5d58b67e
commit 408fbc22ef
4 changed files with 87 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/uapi/linux/tc_act/tc_ife.h
View File

@@ -32,8 +32,9 @@ enum {
#define IFE_META_HASHID 2
#define IFE_META_PRIO 3
#define IFE_META_QMAP 4
#define IFE_META_TCINDEX 5
/*Can be overridden at runtime by module option*/
#define __IFE_META_MAX 5
#define __IFE_META_MAX 6
#define IFE_META_MAX (__IFE_META_MAX - 1)
#endif