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| author | David Disseldorp <[email protected]> | 2022-05-10 01:29:19 +0000 |
|---|---|---|
| committer | akpm <[email protected]> | 2022-05-10 01:29:19 +0000 |
| commit | da028e4c4b0279eb49f80220d8f7cc62b4a57ccb (patch) | |
| tree | 06cf79a0ecbd9692d475802a9db3fe245c48a28a /lib/string_helpers.c | |
| parent | proc: fix dentry/inode overinstantiating under /proc/${pid}/net (diff) | |
| download | kernel-da028e4c4b0279eb49f80220d8f7cc62b4a57ccb.tar.gz kernel-da028e4c4b0279eb49f80220d8f7cc62b4a57ccb.zip | |
initramfs: refactor do_header() cpio magic checks
Patch series "initramfs: "crc" cpio format and INITRAMFS_PRESERVE_MTIME", v7.
This patchset does some minor initramfs refactoring and allows cpio entry
mtime preservation to be disabled via a new Kconfig
INITRAMFS_PRESERVE_MTIME option.
Patches 4/6 to 6/6 implement support for creation and extraction of "crc"
cpio archives, which carry file data checksums. Basic tests for this
functionality can be found at https://github.com/rapido-linux/rapido/pull/163
This patch (of 6):
do_header() is called for each cpio entry and fails if the first six bytes
don't match "newc" magic. The magic check includes a special case error
message if POSIX.1 ASCII (cpio -H odc) magic is detected. This special
case POSIX.1 check can be nested under the "newc" mismatch code path to
avoid calling memcmp() twice in a non-error case.
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: David Disseldorp <[email protected]>
Reviewed-by: Martin Wilck <[email protected]>
Acked-by: Christian Brauner <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions