This commit add the support for alternative names.
* exposing the attributes in the link object.
* adding the add and delete functions
* allow LinkByName() to also find devices by altname like `ip link`
Signed-off-by: Sebastian Sch <sebassch@gmail.com>
This causes the NETLINK_EXT_ACK socket option to be set and extended
error messages to be reported in errors. This should help debug test
failures.
Also use errors.Is to check for errors because using extended error
reporting, the errors no longer match exactly.
The IFLA_GENEVE_COLLECT_METADATA netlink attribute shouldn't have any a
payload. For Geneve devices also other attributes can be set next to
FlowBased, however the VNI needs to be 0.
This commit also adds a test for creating a Geneve device in FlowBased
mode.
Signed-off-by: Robin Gögge <r.goegge@isovalent.com>
IFLA_IPTUN_COLLECT_METADATA is a "flag" netlink attribute, and shouldn't
have any payload. This also needs to be considered when parsing netlink
messages for Iptun.
This fixes Iptun link, by crafting and parsing messages accordingly and
adds a test.
Signed-off-by: Robin Gögge <r.goegge@isovalent.com>
Ip6tnl devices support IFLA_IPTUN_COLLECT_METADATA (collect_md/external
mode). This commit adds support for this and a respective test.
Signed-off-by: Robin Gögge <r.goegge@isovalent.com>
Add two new methods to allow setting GSO and GRO max size attributes only.
They make it much easier to enable IPv4 BIG TCP [0].
The equivalent iproute2 commands are:
$ ip link set $link gso_ipv4_max_size $maxSize
$ ip link set $link gro_ipv4_max_size $maxSize
Also add tests for them. We already do support the IPv6 counterpart via
543bb1cade ("link: add LinkSetGSOMaxSize and LinkSetGROMaxSize").
[0] https://lore.kernel.org/netdev/cover.1674921359.git.lucien.xin@gmail.com/
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This pr allows to change the default vlan on a bridge. It is
currently set to 1 by default. A value of 0 means no default vlan.
Signed-off-by: Marcelo Guerrero Viveros <marguerr@redhat.com>
GRE L3 devices support "FlowBased" ("collect_md"/"external") mode.
Add support for this configuration and relevant test.
Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
IFLA_GRE_COLLECT_METADATA is a "flag" netlink attribute. As such it should
not be sent with a data payload.
Fix gretap link to send this flag correctly and re-enable tests.
Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
Add two new methods to allow setting GSO and GRO max size attributes only.
They make it much easier to enable BIG TCP[1].
The equivalent iproute2 commands are:
$ ip link set $link gso_max_size $maxSize
$ ip link set $link gro_max_size $maxSize
Also add tests for them.
[1] https://patchwork.kernel.org/project/netdevbpf/cover/20220513183408.686447-1-eric.dumazet@gmail.com/
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Add support for the new IFLA_GRO_MAX_SIZE attribute which is needed to
enable BIG TCP[1] properly. Define the attribute in the local link
attributes (nl/link_linux.go) because it isn't yet present in Go's
x/sys/unix package. Also add a test for it.
[1] https://patchwork.kernel.org/project/netdevbpf/cover/20220513183408.686447-1-eric.dumazet@gmail.com/
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Adding an xfrmi link with if_id 0 results in EINVAL being returned, see
[1]. Adjust TestLinkAddDelXfrmiNoId accordingly to expect an error.
[1] 8efd0d9c31/net/xfrm/xfrm_interface.c (L645-L648)
Fixes: f7fd7af437 ("Only set IFLA_XFRM_IF_ID if not 0")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
When the LinkModify was merged in [1] a function
that exports it outside of pkgHandle was never
added like is available for LinkAdd, LinkDel etc.
Update testing to use exported LinkModify that
itself calls the pkgHandle.LinkModify function.
[1] https://github.com/vishvananda/netlink/pull/541
Provide the status of the allmulticast option via the highlevel
link attributes instead of requiring raw flag handling.
Avoid comparing all rawflags before and after in tests due to that
the IFF_RUNNING flag might change independenly.
Signed-off-by: Björn Svensson <bjorn.a.svensson@est.tech>
Creating a veth pair across namespaces now is a multistep process.
Doing it in one shot with this change is clearer as current
namespace never sees peer IF. Also, moving peer into a namespace
may be rather slow, so better avoided.
This PR refers to PR@lebauce and add some changes.
- Added some tests to retrieve bond slave information.
- Link.BondSlave is changed to LinkSlave interface.
- BondSlaveState.String() returns UPPER case. (same as iproute2)
- BondSlaveMiiStatus.String() returns UPPER case. (same as iproute2)
This deserializes the tx queue, and rx queue count on link
deserialization. We already supported it on serialization.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
For tuntap interfaces, return a TunTap Interface instead of
a Generic link when retrieving the interface.
Use netlink extended attributes to populate the Link attributes
for the tuntap link.
In case of older tun driver which does not provide these
attributes, use sysfs to retrieve these attributes.
This commit also adds Owner and Group attributes for the TunTap
Link.
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
XFRM interfaces are available in Linux Kernel 4.19+
When an IF_ID is applied to a XFRM policy and state, the corresponding
traffic will be sent through the virtual interface with the same IF_ID.
