As j...@freenode found out, the salt file needs to be 128 bytes (or larger),
but no part of mount_vnd seem to mention the size requirements, so if we
require
128 bytes, then this diff should help people use salt files:
Index: mount_vnd.8
===================================================================
RCS file: /cvs/src/sbin/mount_vnd/mount_vnd.8,v
retrieving revision 1.17
diff -u -r1.17 mount_vnd.8
--- mount_vnd.8 15 Apr 2010 23:19:14 -0000 1.17
+++ mount_vnd.8 26 Nov 2010 09:19:29 -0000
@@ -206,6 +206,7 @@
.Fl K
is used, specify the
.Pa saltfile .
+Make sure the salt file is 128 bytes or larger.
.It Fl t Ar disktype
Specify a
.Ar disktype
Index: mount_vnd.c
===================================================================
RCS file: /cvs/src/sbin/mount_vnd/mount_vnd.c,v
retrieving revision 1.9
diff -u -r1.9 mount_vnd.c
--- mount_vnd.c 12 Apr 2010 01:44:08 -0000 1.9
+++ mount_vnd.c 26 Nov 2010 09:19:29 -0000
@@ -231,8 +231,9 @@
} else {
if (read(fd, saltbuf, sizeof(saltbuf))
!= sizeof(saltbuf))
- err(1, "Unable to read salt file: '%s'",
- saltfile);
+ err(1, "Unable to read salt file: '%s' "
+ "or salt file smaller than %d
bytes",
+ saltfile, sizeof(saltbuf));
}
close(fd);
}
to test, create a less-than-128-byte salt file in /tmp named small, and go:
# mount_vnd -K 1292 -S /tmp/small /path/to/some/file vnd0
/ jj@
--
To our sweethearts and wives. May they never meet. -- 19th century toast
