108ed43a | 12-Jan-2018 |
Tomohiro Kusumi <kusumi.tomohiro@gmail.com> |
usr.sbin/autofs: Make automount(8) call chdir("/") before create_directory()
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224601
Unlike automountd where the daemon is daemonized or lesser-daem
usr.sbin/autofs: Make automount(8) call chdir("/") before create_directory()
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224601
Unlike automountd where the daemon is daemonized or lesser-daemonized, an automount process isn't necessarily at /, and this results in creating unneeded directories at the current directory.
In the example below, mounting autofs on /mnt/media fails because the command mkdirs mnt/media instead of /mnt/media. If /mnt/media already exists the command can mount autofs on /mnt/media, but it still mkdirs unneeded directories mnt/media.
Calling chdir("/") before creation and restoring the directory after creation avoids this.
-- [root@]~# automount -L /mnt/media -nosuid -media # indirect map referenced at /etc/auto_master:8 [root@]~# ls mnt ls: mnt: No such file or directory [root@]~# automount automount: cannot mount map -media on /mnt/media: No such file or directory [root@]~# mount | grep autofs [root@]~# ls mnt media [root@]~# tree mnt mnt `-- media
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