MIRRORS/poky
1
0
Fork 0
mirror of git://git.yoctoproject.org/poky.git synced 2025-07-19 12:59:02 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

wic: use E2FSPROGS_FAKE_TIME and hash_seed to generate reproducible ext4 images

Browse Source 
E2FSPROGS_FAKE_TIME: sets fixed times for the inodes in the file system.
hash_seed: creates reproducible directory indexes in the file system.

Reference commit in e2fsprogs: e1f7100643a46456be107b33098f6034b0835e6d

(From OE-Core rev: bb822ab75de0020572058090439b93cc56bbf7e0)

Signed-off-by: venkata pyla <venkata.pyla@toshiba-tsip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
venkata pyla 2023-12-18 10:00:30 +05:30 committed by Richard Purdie
parent 16a3fde3fa
commit bc8ca0bacc
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
scripts/lib/wic/partition.py
View File

@ -284,6 +284,20 @@ class Partition():
extraopts = self.mkfs_extraopts or "-F -i 8192"
if os.getenv('SOURCE_DATE_EPOCH'):
sde_time = int(os.getenv('SOURCE_DATE_EPOCH'))
if pseudo:
pseudo = "export E2FSPROGS_FAKE_TIME=%s;%s " % (sde_time, pseudo)
else:
pseudo = "export E2FSPROGS_FAKE_TIME=%s; " % sde_time
# Set hash_seed to generate deterministic directory indexes
namespace = uuid.UUID("e7429877-e7b3-4a68-a5c9-2f2fdf33d460")
if self.fsuuid:
namespace = uuid.UUID(self.fsuuid)
hash_seed = str(uuid.uuid5(namespace, str(sde_time)))
extraopts += " -E hash_seed=%s" % hash_seed
label_str = ""
if self.label:
label_str = "-L %s" % self.label