tree e51af1f4eed532b6efe3cc4ca70fab4ee7d54794
parent f899cd885ce1fee534c4e753971037db4373c56a
author Hungming Chen <nuccachen@google.com> 1640871330 +0800
committer Hungming Chen <nuccachen@google.com> 1640875774 +0800

[RN#9] make clatd functions return -errno

For consistent, return -errno but errno on failure.

Changed functions:
- configure_tun_ip
- detect_mtu
- configure_clat_ipv6_address
- configure_packet_socket
- add_anycast_address

Also fix a return errno bug in configure_tun_ip(),
InterfaceController::setMtu has already returned -errno.

Bug: 212345928
Test: atest ClatdControllerTest
Change-Id: I105d5b0c67a881970a6534fb26878f3af8242e08