diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2016-07-05 16:36:29 +0100 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@linaro.org> | 2016-07-19 15:23:16 +0300 |
| commit | f2c2fb50be13aca9c449d9156817c915d9cd2acb (patch) | |
| tree | bb0bba272cbe33de2107ca3105e7bc24d6687a3f | |
| parent | a4a2c51f9006b9e6ee3b94f5ce87aed066f3446a (diff) | |
linux-user: Correct type for LOOP_GET_STATUS{,64} ioctls
The LOOP_GET_STATUS and LOOP_GET_STATUS64 ioctls were incorrectly
defined as IOC_W rather than IOC_R, which meant we weren't
correctly copying the information back from the kernel to the guest.
The loop_info64 structure definition was also missing a member
and using the wrong type for several 32-bit fields.
In particular, this meant that "kpartx -d image.img" didn't work
and "losetup -a" behaved strangely. Correct the ioctl type definitions.
Reported-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
| -rw-r--r-- | linux-user/ioctls.h | 4 | ||||
| -rw-r--r-- | linux-user/syscall_types.h | 9 |
2 files changed, 7 insertions, 6 deletions
diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h index a066d9b3f6..33ede9cd9e 100644 --- a/linux-user/ioctls.h +++ b/linux-user/ioctls.h @@ -322,9 +322,9 @@ IOCTL(LOOP_SET_FD, 0, TYPE_INT) IOCTL(LOOP_CLR_FD, 0, TYPE_INT) IOCTL(LOOP_SET_STATUS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info))) - IOCTL(LOOP_GET_STATUS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info))) + IOCTL(LOOP_GET_STATUS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_loop_info))) IOCTL(LOOP_SET_STATUS64, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info64))) - IOCTL(LOOP_GET_STATUS64, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info64))) + IOCTL(LOOP_GET_STATUS64, IOC_R, MK_PTR(MK_STRUCT(STRUCT_loop_info64))) IOCTL(LOOP_CHANGE_FD, 0, TYPE_INT) IOCTL(LOOP_CTL_ADD, 0, TYPE_INT) diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h index 1fd4ee0bfd..af79fbf1de 100644 --- a/linux-user/syscall_types.h +++ b/linux-user/syscall_types.h @@ -103,10 +103,11 @@ STRUCT(loop_info64, TYPE_ULONGLONG, /* lo_inode */ TYPE_ULONGLONG, /* lo_rdevice */ TYPE_ULONGLONG, /* lo_offset */ - TYPE_ULONG, /* lo_number */ - TYPE_ULONG, /* lo_encrypt_type */ - TYPE_ULONG, /* lo_encrypt_key_size */ - TYPE_ULONG, /* lo_flags */ + TYPE_ULONGLONG, /* lo_sizelimit */ + TYPE_INT, /* lo_number */ + TYPE_INT, /* lo_encrypt_type */ + TYPE_INT, /* lo_encrypt_key_size */ + TYPE_INT, /* lo_flags */ MK_ARRAY(TYPE_CHAR, 64), /* lo_name */ MK_ARRAY(TYPE_CHAR, 64), /* lo_crypt_name */ MK_ARRAY(TYPE_CHAR, 32), /* lo_encrypt_key */ |