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qemu-e2k/tools/virtiofsd
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Stefan Hajnoczi fd9279ec99 virtiofsd: probe unshare(CLONE_FS) and print an error 
An assertion failure is raised during request processing if
unshare(CLONE_FS) fails. Implement a probe at startup so the problem can
be detected right away.

Unfortunately Docker/Moby does not include unshare in the seccomp.json
list unless CAP_SYS_ADMIN is given. Other seccomp.json lists always
include unshare (e.g. podman is unaffected):
https://raw.githubusercontent.com/seccomp/containers-golang/master/seccomp.json

Use "docker run --security-opt seccomp=path/to/seccomp.json ..." if the
default seccomp.json is missing unshare.

Cc: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200727190223.422280-4-stefanha@redhat.com>
Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-08-28 13:34:52 +01:00
..
50-qemu-virtiofsd.json.in virtiofsd: add vhost-user.json file 2020-01-23 16:41:36 +00:00
buffer.c virtiofsd: use fuse_buf_writev to replace fuse_buf_write for better performance 2020-01-23 16:41:37 +00:00
fuse_common.h virtiofsd: Parse flag FUSE_WRITE_KILL_PRIV 2020-01-23 16:41:37 +00:00
fuse_i.h virtiofsd: Remove fuse.h and struct fuse_module 2020-02-21 12:53:17 +00:00
fuse_log.c virtiofsd: Fix common header and define for QEMU builds 2020-01-23 16:41:36 +00:00
fuse_log.h virtiofsd: Format imported files to qemu style 2020-01-23 16:41:36 +00:00
fuse_lowlevel.c tools/virtiofsd/fuse_lowlevel: Fix fuse_out_header::error value 2020-02-21 12:53:17 +00:00
fuse_lowlevel.h virtiofsd: add --rlimit-nofile=NUM option 2020-05-01 18:41:55 +01:00
fuse_misc.h virtiofsd: support nanosecond resolution for file timestamp 2020-01-23 16:41:37 +00:00
fuse_opt.c virtiofsd: Fix common header and define for QEMU builds 2020-01-23 16:41:36 +00:00
fuse_opt.h virtiofsd: Format imported files to qemu style 2020-01-23 16:41:36 +00:00
fuse_signals.c virtiofsd: convert more fprintf and perror to use fuse log infra 2020-01-23 16:41:37 +00:00
fuse_virtio.c virtiofsd: probe unshare(CLONE_FS) and print an error 2020-08-28 13:34:52 +01:00
fuse_virtio.h virtiofsd: cleanup allocated resource in se 2020-01-23 16:41:37 +00:00
helper.c virtiofsd: Remove "norace" from cmdline help and docs 2020-08-28 13:34:52 +01:00
meson.build tools/virtiofsd: convert to Meson 2020-08-21 06:30:09 -04:00
passthrough_helpers.h virtiofsd: Format imported files to qemu style 2020-01-23 16:41:36 +00:00
passthrough_ll.c virtiofsd: drop CAP_DAC_READ_SEARCH 2020-08-28 13:34:52 +01:00
passthrough_seccomp.c tools/virtiofsd: convert to Meson 2020-08-21 06:30:09 -04:00
passthrough_seccomp.h tools/virtiofsd: convert to Meson 2020-08-21 06:30:09 -04:00