diff options
| author | mckusick <mckusick@FreeBSD.org> | 2003-02-14 21:31:58 +0000 |
|---|---|---|
| committer | mckusick <mckusick@FreeBSD.org> | 2003-02-14 21:31:58 +0000 |
| commit | d9ebbec084d4cd0e0a21fb74427a996f22d248d9 (patch) | |
| tree | 63dc48c454d25fb06dee4802e18680e0ebce6eb9 /sbin/newfs | |
| parent | e6a38537d0f62bfb7a171d986541d180b8a9071d (diff) | |
| download | FreeBSD-src-d9ebbec084d4cd0e0a21fb74427a996f22d248d9.zip FreeBSD-src-d9ebbec084d4cd0e0a21fb74427a996f22d248d9.tar.gz | |
Replace use of random() with arc4random() to provide less guessable
values for the initial inode generation numbers in newfs and for
newly allocated inode generation numbers in the kernel.
Submitted by: Theo de Raadt <deraadt@cvs.openbsd.org>
Sponsored by: DARPA & NAI Labs.
Diffstat (limited to 'sbin/newfs')
| -rw-r--r-- | sbin/newfs/mkfs.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sbin/newfs/mkfs.c b/sbin/newfs/mkfs.c index cb65343..ddc8fcb 100644 --- a/sbin/newfs/mkfs.c +++ b/sbin/newfs/mkfs.c @@ -126,7 +126,7 @@ mkfs(struct partition *pp, char *fsys) time(&utime); if (!Rflag && !randinit) { randinit = 1; - srandomdev(); + arc4random_stir(); } sblock.fs_old_flags = FS_FLAGS_UPDATED; sblock.fs_flags = 0; @@ -387,7 +387,7 @@ mkfs(struct partition *pp, char *fsys) sblock.fs_state = 0; sblock.fs_clean = 1; sblock.fs_id[0] = (long)utime; - sblock.fs_id[1] = random(); + sblock.fs_id[1] = arc4random(); sblock.fs_fsmnt[0] = '\0'; csfrags = howmany(sblock.fs_cssize, sblock.fs_fsize); sblock.fs_dsize = sblock.fs_size - sblock.fs_sblkno - @@ -649,10 +649,10 @@ initcg(int cylno, time_t utime) dp2 = (struct ufs2_dinode *)(&iobuf[start]); for (i = 0; i < acg.cg_initediblk; i++) { if (sblock.fs_magic == FS_UFS1_MAGIC) { - dp1->di_gen = random(); + dp1->di_gen = arc4random(); dp1++; } else { - dp2->di_gen = random(); + dp2->di_gen = arc4random(); dp2++; } } @@ -666,7 +666,7 @@ initcg(int cylno, time_t utime) i += sblock.fs_frag) { dp1 = (struct ufs1_dinode *)(&iobuf[start]); for (j = 0; j < INOPB(&sblock); j++) { - dp1->di_gen = random(); + dp1->di_gen = arc4random(); dp1++; } wtfs(fsbtodb(&sblock, cgimin(&sblock, cylno) + i), |
