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| author | Mike Frysinger <vapier@gentoo.org> | 2007-05-10 22:44:28 -0700 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2007-07-16 21:15:52 +0200 |
| commit | 4c6f2eb979c314b6362e655f3ff15749af565f86 (patch) | |
| tree | 0f79c99ccc21aea39f1b8633399df6b8472b46e5 /scripts | |
| parent | f2434ec1e08e44c2568b29c2879b3346aa29dbd2 (diff) | |
| download | lwn-4c6f2eb979c314b6362e655f3ff15749af565f86.tar.gz lwn-4c6f2eb979c314b6362e655f3ff15749af565f86.zip | |
kbuild: add support for squashing uid/gid in gen_initramfs_list.sh
Sometimes it is useful to squash all uid's/gid's to 0:0 regardless of
current owner. For example, in build systems that get run as arbitrary
users (uClinux-dist). This adds a special "squash" keyword so you can do
'-g squash -u squash' and have ownership squashed to root.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/gen_initramfs_list.sh | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh index 683eb12babbb..684fb9cdc055 100644 --- a/scripts/gen_initramfs_list.sh +++ b/scripts/gen_initramfs_list.sh @@ -19,11 +19,11 @@ $0 [-o <file>] [-u <uid>] [-g <gid>] {-d | <cpio_source>} ... -o <file> Create gzipped initramfs file named <file> using gen_init_cpio and gzip -u <uid> User ID to map to user ID 0 (root). - <uid> is only meaningful if <cpio_source> - is a directory. + <uid> is only meaningful if <cpio_source> is a + directory. "squash" forces all files to uid 0. -g <gid> Group ID to map to group ID 0 (root). - <gid> is only meaningful if <cpio_source> - is a directory. + <gid> is only meaningful if <cpio_source> is a + directory. "squash" forces all files to gid 0. <cpio_source> File list or directory for cpio archive. If <cpio_source> is a .cpio file it will be used as direct input to initramfs. @@ -113,8 +113,8 @@ parse() { local gid="$4" local ftype=$(filetype "${location}") # remap uid/gid to 0 if necessary - [ "$uid" -eq "$root_uid" ] && uid=0 - [ "$gid" -eq "$root_gid" ] && gid=0 + [ "$root_uid" = "squash" ] && uid=0 || [ "$uid" -eq "$root_uid" ] && uid=0 + [ "$root_gid" = "squash" ] && gid=0 || [ "$gid" -eq "$root_gid" ] && gid=0 local str="${mode} ${uid} ${gid}" [ "${ftype}" == "invalid" ] && return 0 |