commit 65b261a63a48fbb3b11193361d4ea0c38a3c3dfd
author Laurent Vivier <laurent@vivier.eu> Thu Jul 09 09:23:32 2020 +0200
committer Laurent Vivier <laurent@vivier.eu> Mon Jul 13 21:26:33 2020 +0200
tree 165f653ed69d05431799e4dfba61033aff503f09
parent d9679ee592dd181854a39ed05db4038c0a6bbf80

linux-user: add netlink RTM_SETLINK command

This command is needed to be able to boot systemd in a container.

  $ sudo systemd-nspawn -D /chroot/armhf/sid/ -b
  Spawning container sid on /chroot/armhf/sid.
  Press ^] three times within 1s to kill container.
  systemd 245.6-2 running in system mode.
  Detected virtualization systemd-nspawn.
  Detected architecture arm.

  Welcome to Debian GNU/Linux bullseye/sid!

  Set hostname to <virt-arm>.
  Failed to enqueue loopback interface start request: Operation not supported
  Caught <SEGV>, dumped core as pid 3.
  Exiting PID 1...
  Container sid failed with error code 255.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200709072332.890440-2-laurent@vivier.eu>

linux-user/fd-trans.c

diff --git a/linux-user/fd-trans.c b/linux-user/fd-trans.c
index 5d49a53..1486c81 100644
--- a/linux-user/fd-trans.c
+++ b/linux-user/fd-trans.c
@@ -1204,6 +1204,7 @@
         break;
     case RTM_NEWLINK:
     case RTM_DELLINK:
+    case RTM_SETLINK:
         if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
             ifi = NLMSG_DATA(nlh);
             ifi->ifi_type = tswap16(ifi->ifi_type);