Skip to content

Commit

Permalink
[PATCH] compat: be more consistent about [ug]id_t
Browse files Browse the repository at this point in the history 
When I first wrote the compat layer patches, I was somewhat cavalier about
the definition of compat_uid_t and compat_gid_t (or maybe I just
misunderstood :-)).  This patch makes the compat types much more consistent
with the types we are being compatible with and hopefully will fix a few
bugs along the way.

	compat type		type in compat arch
	__compat_[ug]id_t	__kernel_[ug]id_t
	__compat_[ug]id32_t	__kernel_[ug]id32_t
	compat_[ug]id_t		[ug]id_t

The difference is that compat_uid_t is always 32 bits (for the archs we
care about) but __compat_uid_t may be 16 bits on some.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  • Loading branch information
@sfrothwell
sfrothwell authored and Linus Torvalds committed Sep 7, 2005
1 parent 8dbfc5c commit 202e597
Show file tree
Hide file tree
Showing 11 changed files with 87 additions and 76 deletions.
16 changes: 8 additions & 8 deletions arch/mips/kernel/linux32.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -546,20 +546,20 @@ struct msgbuf32 { s32 mtype; char mtext[1]; };
struct ipc_perm32
{
key_t key;
compat_uid_t uid;
compat_gid_t gid;
compat_uid_t cuid;
compat_gid_t cgid;
__compat_uid_t uid;
__compat_gid_t gid;
__compat_uid_t cuid;
__compat_gid_t cgid;
compat_mode_t mode;
unsigned short seq;
};

struct ipc64_perm32 {
key_t key;
compat_uid_t uid;
compat_gid_t gid;
compat_uid_t cuid;
compat_gid_t cgid;
__compat_uid_t uid;
__compat_gid_t gid;
__compat_uid_t cuid;
__compat_gid_t cgid;
compat_mode_t mode;
unsigned short seq;
unsigned short __pad1;
Expand Down
16 changes: 8 additions & 8 deletions fs/compat.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -720,14 +720,14 @@ compat_sys_io_submit(aio_context_t ctx_id, int nr, u32 __user *iocb)
struct compat_ncp_mount_data {
compat_int_t version;
compat_uint_t ncp_fd;
compat_uid_t mounted_uid;
__compat_uid_t mounted_uid;
compat_pid_t wdog_pid;
unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
compat_uint_t time_out;
compat_uint_t retry_count;
compat_uint_t flags;
compat_uid_t uid;
compat_gid_t gid;
__compat_uid_t uid;
__compat_gid_t gid;
compat_mode_t file_mode;
compat_mode_t dir_mode;
};
Expand Down Expand Up @@ -784,9 +784,9 @@ static void *do_ncp_super_data_conv(void *raw_data)

struct compat_smb_mount_data {
compat_int_t version;
compat_uid_t mounted_uid;
compat_uid_t uid;
compat_gid_t gid;
__compat_uid_t mounted_uid;
__compat_uid_t uid;
__compat_gid_t gid;
compat_mode_t file_mode;
compat_mode_t dir_mode;
};
Expand Down Expand Up @@ -1808,8 +1808,8 @@ struct compat_nfsctl_export {
compat_dev_t ex32_dev;
compat_ino_t ex32_ino;
compat_int_t ex32_flags;
compat_uid_t ex32_anon_uid;
compat_gid_t ex32_anon_gid;
__compat_uid_t ex32_anon_uid;
__compat_gid_t ex32_anon_gid;
};

struct compat_nfsctl_fdparm {
Expand Down
20 changes: 10 additions & 10 deletions include/asm-ia64/compat.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -13,10 +13,10 @@ typedef s32 compat_time_t;
typedef s32 compat_clock_t;
typedef s32 compat_key_t;
typedef s32 compat_pid_t;
typedef u16 compat_uid_t;
typedef u16 compat_gid_t;
typedef u32 compat_uid32_t;
typedef u32 compat_gid32_t;
typedef u16 __compat_uid_t;
typedef u16 __compat_gid_t;
typedef u32 __compat_uid32_t;
typedef u32 __compat_gid32_t;
typedef u16 compat_mode_t;
typedef u32 compat_ino_t;
typedef u16 compat_dev_t;
Expand Down Expand Up @@ -50,8 +50,8 @@ struct compat_stat {
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_nlink_t st_nlink;
compat_uid_t st_uid;
compat_gid_t st_gid;
__compat_uid_t st_uid;
__compat_gid_t st_gid;
compat_dev_t st_rdev;
u16 __pad2;
u32 st_size;
Expand Down Expand Up @@ -120,10 +120,10 @@ typedef u32 compat_sigset_word;

struct compat_ipc64_perm {
compat_key_t key;
compat_uid32_t uid;
compat_gid32_t gid;
compat_uid32_t cuid;
compat_gid32_t cgid;
__compat_uid32_t uid;
__compat_gid32_t gid;
__compat_uid32_t cuid;
__compat_gid32_t cgid;
unsigned short mode;
unsigned short __pad1;
unsigned short seq;
Expand Down
10 changes: 6 additions & 4 deletions include/asm-mips/compat.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -15,8 +15,10 @@ typedef s32 compat_clock_t;
typedef s32 compat_suseconds_t;

typedef s32 compat_pid_t;
typedef s32 compat_uid_t;
typedef s32 compat_gid_t;
typedef u32 __compat_uid_t;
typedef u32 __compat_gid_t;
typedef u32 __compat_uid32_t;
typedef u32 __compat_gid32_t;
typedef u32 compat_mode_t;
typedef u32 compat_ino_t;
typedef u32 compat_dev_t;
Expand Down Expand Up @@ -52,8 +54,8 @@ struct compat_stat {
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_nlink_t st_nlink;
compat_uid_t st_uid;
compat_gid_t st_gid;
__compat_uid32_t st_uid;
__compat_gid32_t st_gid;
compat_dev_t st_rdev;
s32 st_pad2[2];
compat_off_t st_size;
Expand Down
10 changes: 6 additions & 4 deletions include/asm-parisc/compat.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,10 @@ typedef s32 compat_ssize_t;
typedef s32 compat_time_t;
typedef s32 compat_clock_t;
typedef s32 compat_pid_t;
typedef u32 compat_uid_t;
typedef u32 compat_gid_t;
typedef u32 __compat_uid_t;
typedef u32 __compat_gid_t;
typedef u32 __compat_uid32_t;
typedef u32 __compat_gid32_t;
typedef u16 compat_mode_t;
typedef u32 compat_ino_t;
typedef u32 compat_dev_t;
Expand Down Expand Up @@ -67,8 +69,8 @@ struct compat_stat {
compat_dev_t st_realdev;
u16 st_basemode;
u16 st_spareshort;
compat_uid_t st_uid;
compat_gid_t st_gid;
__compat_uid32_t st_uid;
__compat_gid32_t st_gid;
u32 st_spare4[3];
};

Expand Down
18 changes: 10 additions & 8 deletions include/asm-ppc64/compat.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,10 @@ typedef s32 compat_ssize_t;
typedef s32 compat_time_t;
typedef s32 compat_clock_t;
typedef s32 compat_pid_t;
typedef u32 compat_uid_t;
typedef u32 compat_gid_t;
typedef u32 __compat_uid_t;
typedef u32 __compat_gid_t;
typedef u32 __compat_uid32_t;
typedef u32 __compat_gid32_t;
typedef u32 compat_mode_t;
typedef u32 compat_ino_t;
typedef u32 compat_dev_t;
Expand Down Expand Up @@ -48,8 +50,8 @@ struct compat_stat {
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_nlink_t st_nlink;
compat_uid_t st_uid;
compat_gid_t st_gid;
__compat_uid32_t st_uid;
__compat_gid32_t st_gid;
compat_dev_t st_rdev;
compat_off_t st_size;
compat_off_t st_blksize;
Expand Down Expand Up @@ -144,10 +146,10 @@ static inline void __user *compat_alloc_user_space(long len)
*/
struct compat_ipc64_perm {
compat_key_t key;
compat_uid_t uid;
compat_gid_t gid;
compat_uid_t cuid;
compat_gid_t cgid;
__compat_uid_t uid;
__compat_gid_t gid;
__compat_uid_t cuid;
__compat_gid_t cgid;
compat_mode_t mode;
unsigned int seq;
unsigned int __pad2;
Expand Down
20 changes: 10 additions & 10 deletions include/asm-s390/compat.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -13,10 +13,10 @@ typedef s32 compat_ssize_t;
typedef s32 compat_time_t;
typedef s32 compat_clock_t;
typedef s32 compat_pid_t;
typedef u16 compat_uid_t;
typedef u16 compat_gid_t;
typedef u32 compat_uid32_t;
typedef u32 compat_gid32_t;
typedef u16 __compat_uid_t;
typedef u16 __compat_gid_t;
typedef u32 __compat_uid32_t;
typedef u32 __compat_gid32_t;
typedef u16 compat_mode_t;
typedef u32 compat_ino_t;
typedef u16 compat_dev_t;
Expand Down Expand Up @@ -51,8 +51,8 @@ struct compat_stat {
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_nlink_t st_nlink;
compat_uid_t st_uid;
compat_gid_t st_gid;
__compat_uid_t st_uid;
__compat_gid_t st_gid;
compat_dev_t st_rdev;
u16 __pad2;
u32 st_size;
Expand Down Expand Up @@ -140,10 +140,10 @@ static inline void __user *compat_alloc_user_space(long len)

struct compat_ipc64_perm {
compat_key_t key;
compat_uid32_t uid;
compat_gid32_t gid;
compat_uid32_t cuid;
compat_gid32_t cgid;
__compat_uid32_t uid;
__compat_gid32_t gid;
__compat_uid32_t cuid;
__compat_gid32_t cgid;
compat_mode_t mode;
unsigned short __pad1;
unsigned short seq;
Expand Down
18 changes: 10 additions & 8 deletions include/asm-sparc64/compat.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,10 @@ typedef s32 compat_ssize_t;
typedef s32 compat_time_t;
typedef s32 compat_clock_t;
typedef s32 compat_pid_t;
typedef u16 compat_uid_t;
typedef u16 compat_gid_t;
typedef u16 __compat_uid_t;
typedef u16 __compat_gid_t;
typedef u32 __compat_uid32_t;
typedef u32 __compat_gid32_t;
typedef u16 compat_mode_t;
typedef u32 compat_ino_t;
typedef u16 compat_dev_t;
Expand Down Expand Up @@ -47,8 +49,8 @@ struct compat_stat {
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_nlink_t st_nlink;
compat_uid_t st_uid;
compat_gid_t st_gid;
__compat_uid_t st_uid;
__compat_gid_t st_gid;
compat_dev_t st_rdev;
compat_off_t st_size;
compat_time_t st_atime;
Expand Down Expand Up @@ -177,10 +179,10 @@ static __inline__ void __user *compat_alloc_user_space(long len)

struct compat_ipc64_perm {
compat_key_t key;
__kernel_uid_t uid;
__kernel_gid_t gid;
__kernel_uid_t cuid;
__kernel_gid_t cgid;
__compat_uid32_t uid;
__compat_gid32_t gid;
__compat_uid32_t cuid;
__compat_gid32_t cgid;
unsigned short __pad1;
compat_mode_t mode;
unsigned short __pad2;
Expand Down
20 changes: 10 additions & 10 deletions include/asm-x86_64/compat.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -14,10 +14,10 @@ typedef s32 compat_ssize_t;
typedef s32 compat_time_t;
typedef s32 compat_clock_t;
typedef s32 compat_pid_t;
typedef u16 compat_uid_t;
typedef u16 compat_gid_t;
typedef u32 compat_uid32_t;
typedef u32 compat_gid32_t;
typedef u16 __compat_uid_t;
typedef u16 __compat_gid_t;
typedef u32 __compat_uid32_t;
typedef u32 __compat_gid32_t;
typedef u16 compat_mode_t;
typedef u32 compat_ino_t;
typedef u16 compat_dev_t;
Expand Down Expand Up @@ -52,8 +52,8 @@ struct compat_stat {
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_nlink_t st_nlink;
compat_uid_t st_uid;
compat_gid_t st_gid;
__compat_uid_t st_uid;
__compat_gid_t st_gid;
compat_dev_t st_rdev;
u16 __pad2;
u32 st_size;
Expand Down Expand Up @@ -122,10 +122,10 @@ typedef u32 compat_sigset_word;

struct compat_ipc64_perm {
compat_key_t key;
compat_uid32_t uid;
compat_gid32_t gid;
compat_uid32_t cuid;
compat_gid32_t cgid;
__compat_uid32_t uid;
__compat_gid32_t gid;
__compat_uid32_t cuid;
__compat_gid32_t cgid;
unsigned short mode;
unsigned short __pad1;
unsigned short seq;
Expand Down
3 changes: 3 additions & 0 deletions include/linux/compat.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,9 @@
#define compat_jiffies_to_clock_t(x) \
(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)

typedef __compat_uid32_t compat_uid_t;
typedef __compat_gid32_t compat_gid_t;

struct rusage;

struct compat_itimerspec {
Expand Down
12 changes: 6 additions & 6 deletions ipc/compat.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,10 @@ struct compat_msgbuf {

struct compat_ipc_perm {
key_t key;
compat_uid_t uid;
compat_gid_t gid;
compat_uid_t cuid;
compat_gid_t cgid;
__compat_uid_t uid;
__compat_gid_t gid;
__compat_uid_t cuid;
__compat_gid_t cgid;
compat_mode_t mode;
unsigned short seq;
};
Expand Down Expand Up @@ -174,8 +174,8 @@ static inline int __put_compat_ipc_perm(struct ipc64_perm *p,
struct compat_ipc_perm __user *up)
{
int err;
compat_uid_t u;
compat_gid_t g;
__compat_uid_t u;
__compat_gid_t g;

err = __put_user(p->key, &up->key);
SET_UID(u, p->uid);
Expand Down

0 comments on commit 202e597

Please sign in to comment.