executor: use netlink instead of ip command to setup net devices

ip command caused several problems:
1. It is installed in different locations or
not installed at all in different distros.
2. It does not support latest kernel devices,
e.g. setup of hsr currently fails because
our ip does not understand its custom prose.
3. ip command is slow, unbearably slow in emulator
(full setup takes tens of seconds). This change
reduces setup from ~2s to ~400ms.
4. ip is not present in gvisor, but it will support netlink.

Use netlink directly to solve all these problems.

0 files changed, 0 insertions, 0 deletions