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d6f6d71233
Add dec_ttl action support to the OVS kernel datapath selftest
framework:
- Add dec_ttl nested NLA class to ovs-dpctl.py with proper
OVS_DEC_TTL_ATTR_ACTION sub-attribute handling
- Add parse support for dec_ttl(le_1(<inner_actions>)) action
string, consistent with the odp-util.c format where le_1()
holds the actions taken when TTL reaches 1
- Add dpstr output formatting for dec_ttl actions
- Add test_dec_ttl() to openvswitch.sh that verifies:
* Normal TTL packets are forwarded after decrement
* TTL=1 packets are dropped (TTL expiry)
* Graceful skip via ksft_skip if kernel lacks dec_ttl support
The dec_ttl class uses late-binding type resolution to reference
ovsactions for its inner action list, avoiding circular references
at class definition time.
Signed-off-by: Minxi Hou <houminxi@gmail.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20260530021443.1734484-1-houminxi@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>