We have helper routines to support nested attribute addition into
netlink buffer: use them instead of open coding.
Use addattr_nest_compat()/addattr_nest_compat_end() where appropriate.
Signed-off-by: Serhey Popovych <serhe.popovych@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Not all callers want parse_action_control*() to advance the
arguments. For instance act_parse_police() does the argument
advancing itself.
Fixes: e67aba5595 ("tc: actions: add helpers to parse and print control actions")
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Adding new tunnel key fields would cause the usage line overflow 80 chars.
Make the usage text similar to other commands.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Each tc action is terminated by a control action. Each action parses and
prints then intividually. Introduce set of helpers and allow to share
this code.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
tunnel key set parameters includes also dest UDP port, add it to the
usage.
Fixes: 449c709c38 ("tc/m_tunnel_key: Add dest UDP port to tunnel key action")
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Reported-by: Simon Horman <simon.horman@netronome.com>
Enhance tunnel key action parameters by adding destination UDP port.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
This action could be used before redirecting packets to a shared tunnel
device, or when redirecting packets arriving from a such a device.
The 'unset' action is optional. It is used to explicitly unset the
metadata created by the tunnel device during decap. If not used, the
metadata will be released automatically by the kernel.
The 'set' operation, will set the metadata with the specified values for
the encap.
For example, the following flower filter will forward all ICMP packets
destined to 11.11.11.2 through the shared vxlan device 'vxlan0'. Before
redirecting, a metadata for the vxlan tunnel is created using the
tunnel_key action and it's arguments:
$ tc filter add dev net0 protocol ip parent ffff: \
flower \
ip_proto 1 \
dst_ip 11.11.11.2 \
action tunnel_key set \
src_ip 11.11.0.1 \
dst_ip 11.11.0.2 \
id 11 \
action mirred egress redirect dev vxlan0
Signed-off-by: Amir Vadai <amir@vadai.me>
