The patch titled
add support for squashing uid/gid in gen_initramfs_list.sh
has been added to the -mm tree. Its filename is
add-support-for-squashing-uid-gid-in-gen_initramfs_listsh.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: add support for squashing uid/gid in gen_initramfs_list.sh
From: Mike Frysinger <vapier@xxxxxxxxxx>
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@xxxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/gen_initramfs_list.sh | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
diff -puN scripts/gen_initramfs_list.sh~add-support-for-squashing-uid-gid-in-gen_initramfs_listsh scripts/gen_initramfs_list.sh
--- a/scripts/gen_initramfs_list.sh~add-support-for-squashing-uid-gid-in-gen_initramfs_listsh
+++ a/scripts/gen_initramfs_list.sh
@@ -19,11 +19,11 @@ $0 [-o <file>] [-u <uid>] [-g <gid>] {-d
-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
_
Patches currently in -mm which might be from vapier@xxxxxxxxxx are
origin.patch
add-support-for-reading-stdin-with-gen_init_cpio.patch
add-support-for-squashing-uid-gid-in-gen_initramfs_listsh.patch
dont-force-uclinux-mtd-map-to-be-root-dev.patch
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