Upon ipv6_dad_handling_enabled module global parameter set to true, the
address addon will handle ipv6 dad tentatives by either
* set nodad when adding an ipv6 address
* waiting for dad to finish or warn of a timeout
This handling should be quick close to the ifupdown process.
AttributeGeneric cannot be used unless having it's length defined.
This change allow address flags such as optimistic, nodad or others
to be set with the add_attribute packet method.
AttributeGeneric cannot be used unless having it's length defined.
This change allow address flags such as optimistic, nodad or others
to be set with the add_attribute packet method.
On older ubuntu version bridge_binding is not supported, we can't rely
on `ip link help` to detect this. We have manually check if the first
netlink request is rejected then retry with iproute2.
Signed-off-by: Julien Fortin <jfortin@nvidia.com>
According to interfaces(5) [1]:
When sourcing files or directories, if a path doesn't have a leading slash, it's considered relative to the directory containing the file in which the keyword is placed. In the example above, if the file is located at /etc/network/interfaces, paths to the included files are understood to be under /etc/network.
Adapt the implementation to adhere to the documented behaviour.
[1] https://manpages.debian.org/buster/ifupdown/interfaces.5.en.html
There may be adding a static IPv6 default route failed on networks where
router advertisements are also present.
The flow of up an interface is this:
1. ip link set dev $interface up
2. set sysctl config
3. config ip addr
4. config default ip route
After setting the link up, the kernel might learning an address and a
default route from RA before the default route config. The default route
will fail to be added. If the RA route is expired, and not be refreshed
for some reasons，the system looses IPv6 network connectivity.
Proposed fix is to use "route replace" instead of "route add". When the
RA learned route is still present it gets replaced, when it is not present
the route gets added.
Signed-off-by: Kunkun Li <likunkun@bytedance.com>
the following config was broken:
auto swp1
iface swp1
address 10.128.141.37/26
broadcast 10.128.141.63
error: netlink: swp1: cannot add address 10.128.141.37/26 dev swp1: 'str' object has no attribute 'packed'
Signed-off-by: Julien Fortin <jfortin@nvidia.com>
[12:57:29] root:~ # ifquery -a
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto swp1
iface swp1
post-up ip link set dev swp1 down
auto swp2
iface swp2
link-down yes
auto swp3
iface swp3
link-down no
auto swp4
iface swp4
[12:57:29] root:~ #
[12:57:29] root:~ #
[12:57:30] root:~ #
[12:57:30] root:~ # ifquery -ac
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp [pass]
auto swp1
iface swp1 (link is down) [fail]
post-up ip link set dev swp1 down []
auto swp2
iface swp2 [pass]
link-down yes [pass]
auto swp3
iface swp3 [pass]
link-down no [pass]
auto swp4
iface swp4
[12:57:31] root:~ #
Signed-off-by: Julien Fortin <jfortin@nvidia.com>
after a successful mac change we should override our cache so that we don't
keep stale values in cache (in case the cache is queried before the kernel
notification arrives)
Signed-off-by: Julien Fortin <jfortin@nvidia.com>
