This commit added support to allow the operation of ip6tnl encapsulation.
It is equivalent to the iproute2 command, e.g., ip route add 192.168.99.0/24 encap ip6 dst 2001:db8:: dev ip6-tunnel
The limitation include that the options field defined in encap nl route attribute is not implenmented yet.
Testcase is included.
TestRouteFilterAllTables and TestRouteExtraFields started failing a
while ago after GitHub actions images bumped the kernel version from
5.15.x to 6.2.x [1].
This is because newer kernels containing commit [2] started rejecting
Tos values with the ECN bits set to non-zero, this leads to the
following error being reported when adding routes:
invalid argument: Invalid dsfield (tos): ECN bits must be 0
Fix this by using a valid Tos value in TestRouteFilterAllTables and
TestRouteExtraFields.
[1] https://github.com/vishvananda/netlink/pull/773#issuecomment-1754436653
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f55fbb6afb8d
Support `ip route get fibmatch` equivalent with RouteGetWithOptions by
adding FIBMatch flag to RouteGetOptions.
Signed-off-by: Yutaro Hayakawa <yutaro.hayakawa@isovalent.com>
For link, address, route, add a `WithOptions` variant to the
`*Subscribe()` function to specify a namespace and an error
callback. Those options can be extended in the future without adding
more functions. For example, it could be possible to subscribe only
for a given family by adding a `Family` member to the appropriate
struct.
As a minor change, the private function is always suffixed by `At`,
since it was the case for route and raw netlink functions (but not for
address and link).
$ ip -M route add 100 dev eth0
$ ip -M route add 100 as to 200/300 dev eth0
$ ip -M route add 100 nexthop dev eth0 as to 200 \
nexthop dev eth1 as to 300
$ ip route add 10.10.0.0/24 encap mpls 200/300 dev eth0
$ ip route add 10.0.0.0/24 nexthop encap mpls 200 dev eth0 \
nexthop encap mpls 300 dev eth1
Signed-off-by: ISHIDA Wataru <ishida.wataru@lab.ntt.co.jp>
The go get command and make both fail when executed on
non-linux platforms. Modified it so that there are no
compilation errors when developing in such an
environment.
RouteAdd expects at least Dst.IP, Src, or Gw to be set, but accesses the
destination IP without testing for Dst being nil in the first place.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
This provides the basic functionality of the iproute2 `route get`
command. It allows you to query netlink for the route to a destination
IP.Net
While implementing I noticed that the `s.Receive()` function was hanging
after the netlink response was recieved, so I added an additional clause
to break from the loop and return the decoded message if the NLM_F_MULTI
flag is not set.
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Having object composition causes both client and library to
do potentially unecessary work to retrieve Link attributes
when only index is often sufficient.
