libsysdecode: decode PF Generic Netlink commands
Decode the Generic Netlink command header for messages
belonging to the PF Generic Netlink family. Display the
command name using the PF Generic Netlink command decoder.
Signed-off-by: Ishan Agrawal <iagrawal9990 at gmail.com>
Reviewed by: kp
Sponsored-by: Google LLC (GSoC 2026)
libsysdecode: cache Generic Netlink family IDs
Record Generic Netlink family IDs learned from
CTRL_CMD_GETFAMILY responses and use them to decode subsequent
Generic Netlink messages using symbolic family names instead of
numeric IDs.
Signed-off-by: Ishan Agrawal <iagrawal9990 at gmail.com>
Reviewed by: kp
Sponsored-by: Google LLC (GSoC 2026)
libsysdecode: decode Generic Netlink controller messages
Decode Generic Netlink controller (GENL_ID_CTRL) messages in
Netlink payloads. Display the Generic Netlink header along with
the CTRL_CMD_GETFAMILY attributes, including the family ID and
family name.
Signed-off-by: Ishan Agrawal <iagrawal9990 at gmail.com>
Reviewed by: kp
Sponsored-by: Google LLC (GSoC 2026)
truss: track Netlink socket protocols
Record the Netlink protocol associated with AF_NETLINK sockets when
they are created and pass it to libsysdecode during message decoding.
Use the protocol to distinguish between Generic Netlink and Route
Netlink sockets, ensuring that Generic Netlink decoding is only
performed for NETLINK_GENERIC sockets.
Signed-off-by: Ishan Agrawal <iagrawal9990 at gmail.com>
Reviewed by: kp
Sponsored-by : Google LLC (GSoC 2026)
