A fuzzed fileystem image failed with OMFS when the extent count was
used in a loop without being checked against the max number of extents.
It also provoked a signed division for an array index that was checked
as if unsigned, leading to index by -1.
omfsck will be updated to fix these cases, in the meantime bail out
gracefully.
Reported-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/omfs/inode.c:495: warning: format '%llx' expects type 'long long
unsigned int', but argument 2 has type 'u64'
fs/omfs/inode.c:495: warning: format '%llx' expects type 'long
long unsigned int', but argument 3 has type '__be64'
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Missing cpu_to_be64 on some constant assignments.
fs/omfs/dir.c:107:16: warning: incorrect type in assignment (different base types)
fs/omfs/dir.c:107:16: expected restricted __be64 [usertype] i_sibling
fs/omfs/dir.c:107:16: got unsigned long long
fs/omfs/file.c:33:13: warning: incorrect type in assignment (different base types)
fs/omfs/file.c:33:13: expected restricted __be64 [usertype] e_next
fs/omfs/file.c:33:13: got unsigned long long
fs/omfs/file.c:36:24: warning: incorrect type in assignment (different base types)
fs/omfs/file.c:36:24: expected restricted __be64 [usertype] e_cluster
fs/omfs/file.c:36:24: got unsigned long long
fs/omfs/file.c:37:23: warning: incorrect type in assignment (different base types)
fs/omfs/file.c:37:23: expected restricted __be64 [usertype] e_blocks
fs/omfs/file.c:37:23: got unsigned long long
fs/omfs/bitmap.c:74:18: warning: incorrect type in argument 2 (different signedness)
fs/omfs/bitmap.c:74:18: expected unsigned long volatile *addr
fs/omfs/bitmap.c:74:18: got long *<noident>
fs/omfs/bitmap.c:77:20: warning: incorrect type in argument 2 (different signedness)
fs/omfs/bitmap.c:77:20: expected unsigned long volatile *addr
fs/omfs/bitmap.c:77:20: got long *<noident>
fs/omfs/bitmap.c:112:17: warning: incorrect type in argument 2 (different signedness)
fs/omfs/bitmap.c:112:17: expected unsigned long volatile *addr
fs/omfs/bitmap.c:112:17: got long *<noident>
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adds OMFS to the fs Kconfig and Makefile
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add functions for reading and manipulating the storage of file data in
the extent-based OMFS.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add lookup and directory management routines for OMFS. The filesystem uses
hashing based on the filename and stores collisions, unordered, in siblings
of files' inode structures. To support telldir, the current position in
the hash table is encoded in fpos.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
