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mke2fs: implement timestamp clamping if SOURCE_DATE_EPOCH is set

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When copying files to the newly created file system using "mke2fs -d",
and there are timestamps greater than what is specified by
SOURCE_DATE_EPOCH, clamp the timestamp to the SOURCE_DATE_EPOCH
timestamp.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2024-04-25 11:38:32 -04:00
parent b6e2913061
commit f353a1f1b0
1 changed files with 10 additions and 3 deletions
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13
misc/create_inode.c
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@ -109,6 +109,13 @@ errcode_t add_link(ext2_filsys fs, ext2_ino_t parent_ino,
return retval;
}
static time_t clamped_time(ext2_filsys fs, time_t t)
{
if ((fs->flags2 & EXT2_FLAG2_USE_FAKE_TIME) && t > fs->now)
return fs->now;
return t;
}
/* Set the uid, gid, mode and time for the inode */
errcode_t set_inode_extra(ext2_filsys fs, ext2_ino_t ino,
const struct stat *st)
@ -127,9 +134,9 @@ errcode_t set_inode_extra(ext2_filsys fs, ext2_ino_t ino,
inode.i_gid = st->st_gid;
ext2fs_set_i_gid_high(inode, st->st_gid >> 16);
inode.i_mode = (LINUX_S_IFMT & inode.i_mode) | (~S_IFMT & st->st_mode);
ext2fs_inode_xtime_set(&inode, i_atime, st->st_atime);
ext2fs_inode_xtime_set(&inode, i_ctime, st->st_ctime);
ext2fs_inode_xtime_set(&inode, i_mtime, st->st_mtime);
ext2fs_inode_xtime_set(&inode, i_atime, clamped_time(fs, st->st_atime));
ext2fs_inode_xtime_set(&inode, i_ctime, clamped_time(fs, st->st_ctime));
ext2fs_inode_xtime_set(&inode, i_mtime, clamped_time(fs, st->st_mtime));
retval = ext2fs_write_inode(fs, ino, &inode);
if (retval)