tree b2a21de4d012cb2269a7d19330b3e9a78ee91234
parent 251dec5903e3b32d5653f1335fedd96141da8594
author Tang Yiwei <tangyiwei.2022@bytedance.com> 1668652133 +0800
committer Jian Zhang <zhangjian.3032@bytedance.com> 1677119814 +0800

nbd-proxy:  Disable nbd-client's netlink support

When openbmc/openbmc updated the nbd package from 3.20 to 3.24 [1], it
also added libnl as a dependency, enabling nbd's HAVE_NETLINK feature.
When using netlink instead of the older ioctl interface, the nbd-client
process exits immediately after setting up the connection, which
confuses nbd-proxy.  A more thorough, long-term solution would be to
restructure nbd-proxy around the newer nbd-client netlink behavior
(nbd-client's support for the ioctl interface is slated to be removed at
some unspecified point in the future [2]), but as a simpler fix for the
time being we can just disable netlink support via nbd-client's -L
command-line flag.

[1] https://github.com/openbmc/openbmc/commit/78b727985e7571e0b196561e44427690f04d57d9#diff-452e7c988a0afa8d4d41dc2c7710a379997ef7c6d37def5b588bd7593ae694c0
[2] https://github.com/NetworkBlockDevice/nbd/blob/90dc1adc9ba196fca84a9b4f7d85fdfdd9fc4d5b/man/nbd-client.8.in.sgml#L258-L260

Signed-off-by: Tang Yiwei <tangyiwei.2022@bytedance.com>
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Signed-off-by: Jian Zhang <zhangjian.3032@bytedance.com>
Change-Id: I29a76af0f1150aef1f42b54686b45c72848f43da