[MIPS] Use SYSVIPC_COMPAT to fix various problems on N32
N32 SysV IPC system calls should use 32-bit compatible code. arch/mips/kernel/linux32.c have similar compatible code for O32, but ipc/compat.c seems more complete. We can use it for both N32 and O32. This patch should fix these problems (and other possible problems): http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=1149188824.6986.6.camel%40diimka-laptop http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=44C6B829.8050508%40caviumnetworks.com Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto
Ralf Baechle
parent
9567772f14
commit
05e4396651
@ -1940,6 +1940,11 @@ config COMPAT
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depends on MIPS32_COMPAT
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default y
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config SYSVIPC_COMPAT
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bool
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depends on COMPAT && SYSVIPC
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default y
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config MIPS32_O32
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bool "Kernel support for o32 binaries"
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depends on MIPS32_COMPAT
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@ -382,531 +382,6 @@ asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
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return ret;
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}
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struct msgbuf32 { s32 mtype; char mtext[1]; };
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struct ipc_perm32
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{
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key_t key;
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__compat_uid_t uid;
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__compat_gid_t gid;
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__compat_uid_t cuid;
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__compat_gid_t cgid;
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compat_mode_t mode;
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unsigned short seq;
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};
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struct ipc64_perm32 {
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key_t key;
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__compat_uid_t uid;
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__compat_gid_t gid;
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__compat_uid_t cuid;
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__compat_gid_t cgid;
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compat_mode_t mode;
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unsigned short seq;
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unsigned short __pad1;
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unsigned int __unused1;
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unsigned int __unused2;
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};
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struct semid_ds32 {
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struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
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compat_time_t sem_otime; /* last semop time */
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compat_time_t sem_ctime; /* last change time */
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u32 sem_base; /* ptr to first semaphore in array */
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u32 sem_pending; /* pending operations to be processed */
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u32 sem_pending_last; /* last pending operation */
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u32 undo; /* undo requests on this array */
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unsigned short sem_nsems; /* no. of semaphores in array */
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};
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struct semid64_ds32 {
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struct ipc64_perm32 sem_perm;
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compat_time_t sem_otime;
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compat_time_t sem_ctime;
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unsigned int sem_nsems;
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unsigned int __unused1;
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unsigned int __unused2;
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};
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struct msqid_ds32
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{
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struct ipc_perm32 msg_perm;
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u32 msg_first;
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u32 msg_last;
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compat_time_t msg_stime;
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compat_time_t msg_rtime;
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compat_time_t msg_ctime;
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u32 wwait;
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u32 rwait;
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unsigned short msg_cbytes;
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unsigned short msg_qnum;
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unsigned short msg_qbytes;
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compat_ipc_pid_t msg_lspid;
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compat_ipc_pid_t msg_lrpid;
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};
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struct msqid64_ds32 {
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struct ipc64_perm32 msg_perm;
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compat_time_t msg_stime;
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unsigned int __unused1;
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compat_time_t msg_rtime;
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unsigned int __unused2;
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compat_time_t msg_ctime;
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unsigned int __unused3;
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unsigned int msg_cbytes;
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unsigned int msg_qnum;
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unsigned int msg_qbytes;
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compat_pid_t msg_lspid;
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compat_pid_t msg_lrpid;
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unsigned int __unused4;
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unsigned int __unused5;
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};
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struct shmid_ds32 {
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struct ipc_perm32 shm_perm;
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int shm_segsz;
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compat_time_t shm_atime;
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compat_time_t shm_dtime;
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compat_time_t shm_ctime;
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compat_ipc_pid_t shm_cpid;
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compat_ipc_pid_t shm_lpid;
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unsigned short shm_nattch;
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};
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struct shmid64_ds32 {
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struct ipc64_perm32 shm_perm;
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compat_size_t shm_segsz;
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compat_time_t shm_atime;
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compat_time_t shm_dtime;
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compat_time_t shm_ctime;
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compat_pid_t shm_cpid;
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compat_pid_t shm_lpid;
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unsigned int shm_nattch;
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unsigned int __unused1;
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unsigned int __unused2;
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};
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struct ipc_kludge32 {
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u32 msgp;
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s32 msgtyp;
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};
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static int
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do_sys32_semctl(int first, int second, int third, void __user *uptr)
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{
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union semun fourth;
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u32 pad;
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int err, err2;
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struct semid64_ds s;
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mm_segment_t old_fs;
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if (!uptr)
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return -EINVAL;
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err = -EFAULT;
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if (get_user (pad, (u32 __user *)uptr))
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return err;
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if ((third & ~IPC_64) == SETVAL)
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fourth.val = (int)pad;
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else
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fourth.__pad = (void __user *)A(pad);
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switch (third & ~IPC_64) {
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case IPC_INFO:
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case IPC_RMID:
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case IPC_SET:
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case SEM_INFO:
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case GETVAL:
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case GETPID:
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case GETNCNT:
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case GETZCNT:
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case GETALL:
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case SETVAL:
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case SETALL:
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err = sys_semctl (first, second, third, fourth);
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break;
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case IPC_STAT:
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case SEM_STAT:
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fourth.__pad = (struct semid64_ds __user *)&s;
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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err = sys_semctl(first, second, third | IPC_64, fourth);
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set_fs(old_fs);
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if (third & IPC_64) {
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struct semid64_ds32 __user *usp64 = (struct semid64_ds32 __user *) A(pad);
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if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
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err = -EFAULT;
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break;
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}
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err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
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err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
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err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
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err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
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err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
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err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
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err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
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err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
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err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
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err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
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} else {
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struct semid_ds32 __user *usp32 = (struct semid_ds32 __user *) A(pad);
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if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
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err = -EFAULT;
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break;
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}
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err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
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err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
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err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
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err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
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err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
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err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
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err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
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err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
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err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
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err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
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}
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if (err2)
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err = -EFAULT;
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break;
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default:
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err = - EINVAL;
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break;
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}
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return err;
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}
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static int
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do_sys32_msgsnd (int first, int second, int third, void __user *uptr)
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{
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struct msgbuf32 __user *up = (struct msgbuf32 __user *)uptr;
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struct msgbuf *p;
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mm_segment_t old_fs;
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int err;
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if (second < 0)
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return -EINVAL;
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p = kmalloc (second + sizeof (struct msgbuf)
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+ 4, GFP_USER);
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if (!p)
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return -ENOMEM;
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err = get_user (p->mtype, &up->mtype);
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if (err)
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goto out;
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err |= __copy_from_user (p->mtext, &up->mtext, second);
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if (err)
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goto out;
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old_fs = get_fs ();
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set_fs (KERNEL_DS);
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err = sys_msgsnd (first, (struct msgbuf __user *)p, second, third);
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set_fs (old_fs);
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out:
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kfree (p);
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return err;
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}
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static int
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do_sys32_msgrcv (int first, int second, int msgtyp, int third,
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int version, void __user *uptr)
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{
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struct msgbuf32 __user *up;
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struct msgbuf *p;
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mm_segment_t old_fs;
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int err;
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if (!version) {
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struct ipc_kludge32 __user *uipck = (struct ipc_kludge32 __user *)uptr;
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struct ipc_kludge32 ipck;
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err = -EINVAL;
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if (!uptr)
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goto out;
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err = -EFAULT;
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if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
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goto out;
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uptr = (void __user *)AA(ipck.msgp);
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msgtyp = ipck.msgtyp;
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}
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if (second < 0)
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return -EINVAL;
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err = -ENOMEM;
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p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
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if (!p)
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goto out;
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old_fs = get_fs ();
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set_fs (KERNEL_DS);
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err = sys_msgrcv (first, (struct msgbuf __user *)p, second + 4, msgtyp, third);
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set_fs (old_fs);
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if (err < 0)
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goto free_then_out;
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up = (struct msgbuf32 __user *)uptr;
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if (put_user (p->mtype, &up->mtype) ||
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__copy_to_user (&up->mtext, p->mtext, err))
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err = -EFAULT;
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free_then_out:
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kfree (p);
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out:
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return err;
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}
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static int
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do_sys32_msgctl (int first, int second, void __user *uptr)
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{
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int err = -EINVAL, err2;
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struct msqid64_ds m;
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struct msqid_ds32 __user *up32 = (struct msqid_ds32 __user *)uptr;
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struct msqid64_ds32 __user *up64 = (struct msqid64_ds32 __user *)uptr;
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mm_segment_t old_fs;
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switch (second & ~IPC_64) {
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case IPC_INFO:
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case IPC_RMID:
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case MSG_INFO:
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err = sys_msgctl (first, second, (struct msqid_ds __user *)uptr);
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break;
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case IPC_SET:
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if (second & IPC_64) {
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if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
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err = -EFAULT;
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break;
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}
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err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
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err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
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err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
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err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
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} else {
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if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
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err = -EFAULT;
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break;
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}
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err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
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err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
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err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
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err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
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}
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if (err)
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break;
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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err = sys_msgctl(first, second | IPC_64, (struct msqid_ds __user *)&m);
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set_fs(old_fs);
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break;
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case IPC_STAT:
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case MSG_STAT:
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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err = sys_msgctl(first, second | IPC_64, (struct msqid_ds __user *)&m);
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set_fs(old_fs);
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if (second & IPC_64) {
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if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
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err = -EFAULT;
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break;
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}
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err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
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err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
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err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
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err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
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err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
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err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
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err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
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err2 |= __put_user(m.msg_stime, &up64->msg_stime);
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err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
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err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
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err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
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err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
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err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
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err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
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err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
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if (err2)
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err = -EFAULT;
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} else {
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if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
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err = -EFAULT;
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break;
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}
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err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
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err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
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err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
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err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
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err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
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err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
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err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
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err2 |= __put_user(m.msg_stime, &up32->msg_stime);
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err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
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err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
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err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
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err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
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err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
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err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
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err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
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if (err2)
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err = -EFAULT;
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}
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break;
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}
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return err;
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}
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static int
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do_sys32_shmat (int first, int second, int third, int version, void __user *uptr)
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{
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unsigned long raddr;
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u32 __user *uaddr = (u32 __user *)A((u32)third);
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int err = -EINVAL;
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if (version == 1)
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return err;
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err = do_shmat (first, uptr, second, &raddr);
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if (err)
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return err;
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err = put_user (raddr, uaddr);
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return err;
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}
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struct shm_info32 {
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int used_ids;
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u32 shm_tot, shm_rss, shm_swp;
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u32 swap_attempts, swap_successes;
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};
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static int
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do_sys32_shmctl (int first, int second, void __user *uptr)
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{
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struct shmid64_ds32 __user *up64 = (struct shmid64_ds32 __user *)uptr;
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struct shmid_ds32 __user *up32 = (struct shmid_ds32 __user *)uptr;
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struct shm_info32 __user *uip = (struct shm_info32 __user *)uptr;
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int err = -EFAULT, err2;
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struct shmid64_ds s64;
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mm_segment_t old_fs;
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struct shm_info si;
|
||||
struct shmid_ds s;
|
||||
|
||||
switch (second & ~IPC_64) {
|
||||
case IPC_INFO:
|
||||
second = IPC_INFO; /* So that we don't have to translate it */
|
||||
case IPC_RMID:
|
||||
case SHM_LOCK:
|
||||
case SHM_UNLOCK:
|
||||
err = sys_shmctl(first, second, (struct shmid_ds __user *)uptr);
|
||||
break;
|
||||
case IPC_SET:
|
||||
if (second & IPC_64) {
|
||||
err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
|
||||
err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
|
||||
err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
|
||||
} else {
|
||||
err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
|
||||
err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
|
||||
err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
|
||||
}
|
||||
if (err)
|
||||
break;
|
||||
old_fs = get_fs();
|
||||
set_fs(KERNEL_DS);
|
||||
err = sys_shmctl(first, second & ~IPC_64, (struct shmid_ds __user *)&s);
|
||||
set_fs(old_fs);
|
||||
break;
|
||||
|
||||
case IPC_STAT:
|
||||
case SHM_STAT:
|
||||
old_fs = get_fs();
|
||||
set_fs(KERNEL_DS);
|
||||
err = sys_shmctl(first, second | IPC_64, (void __user *) &s64);
|
||||
set_fs(old_fs);
|
||||
if (err < 0)
|
||||
break;
|
||||
if (second & IPC_64) {
|
||||
if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
|
||||
err = -EFAULT;
|
||||
break;
|
||||
}
|
||||
err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
|
||||
err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
|
||||
err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
|
||||
err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
|
||||
err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
|
||||
err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
|
||||
err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
|
||||
err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
|
||||
err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
|
||||
err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
|
||||
err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
|
||||
err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
|
||||
err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
|
||||
err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
|
||||
} else {
|
||||
if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
|
||||
err = -EFAULT;
|
||||
break;
|
||||
}
|
||||
err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
|
||||
err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
|
||||
err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
|
||||
err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
|
||||
err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
|
||||
err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
|
||||
err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
|
||||
err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
|
||||
err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
|
||||
err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
|
||||
err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
|
||||
err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
|
||||
err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
|
||||
err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
|
||||
}
|
||||
if (err2)
|
||||
err = -EFAULT;
|
||||
break;
|
||||
|
||||
case SHM_INFO:
|
||||
old_fs = get_fs();
|
||||
set_fs(KERNEL_DS);
|
||||
err = sys_shmctl(first, second, (void __user *)&si);
|
||||
set_fs(old_fs);
|
||||
if (err < 0)
|
||||
break;
|
||||
err2 = put_user(si.used_ids, &uip->used_ids);
|
||||
err2 |= __put_user(si.shm_tot, &uip->shm_tot);
|
||||
err2 |= __put_user(si.shm_rss, &uip->shm_rss);
|
||||
err2 |= __put_user(si.shm_swp, &uip->shm_swp);
|
||||
err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
|
||||
err2 |= __put_user (si.swap_successes, &uip->swap_successes);
|
||||
if (err2)
|
||||
err = -EFAULT;
|
||||
break;
|
||||
|
||||
default:
|
||||
err = -EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sys32_semtimedop(int semid, struct sembuf __user *tsems, int nsems,
|
||||
const struct compat_timespec __user *timeout32)
|
||||
{
|
||||
struct compat_timespec t32;
|
||||
struct timespec __user *t64 = compat_alloc_user_space(sizeof(*t64));
|
||||
|
||||
if (copy_from_user(&t32, timeout32, sizeof(t32)))
|
||||
return -EFAULT;
|
||||
|
||||
if (put_user(t32.tv_sec, &t64->tv_sec) ||
|
||||
put_user(t32.tv_nsec, &t64->tv_nsec))
|
||||
return -EFAULT;
|
||||
|
||||
return sys_semtimedop(semid, tsems, nsems, t64);
|
||||
}
|
||||
|
||||
asmlinkage long
|
||||
sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
|
||||
{
|
||||
@ -918,48 +393,43 @@ sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
|
||||
switch (call) {
|
||||
case SEMOP:
|
||||
/* struct sembuf is the same on 32 and 64bit :)) */
|
||||
err = sys_semtimedop (first, (struct sembuf __user *)AA(ptr), second,
|
||||
NULL);
|
||||
err = sys_semtimedop(first, compat_ptr(ptr), second, NULL);
|
||||
break;
|
||||
case SEMTIMEDOP:
|
||||
err = sys32_semtimedop (first, (struct sembuf __user *)AA(ptr), second,
|
||||
(const struct compat_timespec __user *)AA(fifth));
|
||||
err = compat_sys_semtimedop(first, compat_ptr(ptr), second,
|
||||
compat_ptr(fifth));
|
||||
break;
|
||||
case SEMGET:
|
||||
err = sys_semget (first, second, third);
|
||||
err = sys_semget(first, second, third);
|
||||
break;
|
||||
case SEMCTL:
|
||||
err = do_sys32_semctl (first, second, third,
|
||||
(void __user *)AA(ptr));
|
||||
err = compat_sys_semctl(first, second, third, compat_ptr(ptr));
|
||||
break;
|
||||
|
||||
case MSGSND:
|
||||
err = do_sys32_msgsnd (first, second, third,
|
||||
(void __user *)AA(ptr));
|
||||
err = compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
|
||||
break;
|
||||
case MSGRCV:
|
||||
err = do_sys32_msgrcv (first, second, fifth, third,
|
||||
version, (void __user *)AA(ptr));
|
||||
err = compat_sys_msgrcv(first, second, fifth, third,
|
||||
version, compat_ptr(ptr));
|
||||
break;
|
||||
case MSGGET:
|
||||
err = sys_msgget ((key_t) first, second);
|
||||
err = sys_msgget((key_t) first, second);
|
||||
break;
|
||||
case MSGCTL:
|
||||
err = do_sys32_msgctl (first, second, (void __user *)AA(ptr));
|
||||
err = compat_sys_msgctl(first, second, compat_ptr(ptr));
|
||||
break;
|
||||
|
||||
case SHMAT:
|
||||
err = do_sys32_shmat (first, second, third,
|
||||
version, (void __user *)AA(ptr));
|
||||
err = compat_sys_shmat(first, second, third, version,
|
||||
compat_ptr(ptr));
|
||||
break;
|
||||
case SHMDT:
|
||||
err = sys_shmdt ((char __user *)A(ptr));
|
||||
err = sys_shmdt(compat_ptr(ptr));
|
||||
break;
|
||||
case SHMGET:
|
||||
err = sys_shmget (first, (unsigned)second, third);
|
||||
err = sys_shmget(first, (unsigned)second, third);
|
||||
break;
|
||||
case SHMCTL:
|
||||
err = do_sys32_shmctl (first, second, (void __user *)AA(ptr));
|
||||
err = compat_sys_shmctl(first, second, compat_ptr(ptr));
|
||||
break;
|
||||
default:
|
||||
err = -EINVAL;
|
||||
@ -969,18 +439,16 @@ sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
|
||||
return err;
|
||||
}
|
||||
|
||||
asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
|
||||
int shmflg, int32_t __user *addr)
|
||||
#ifdef CONFIG_MIPS32_N32
|
||||
asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, union semun arg)
|
||||
{
|
||||
unsigned long raddr;
|
||||
int err;
|
||||
|
||||
err = do_shmat(shmid, shmaddr, shmflg, &raddr);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
return put_user(raddr, addr);
|
||||
/* compat_sys_semctl expects a pointer to union semun */
|
||||
u32 __user *uptr = compat_alloc_user_space(sizeof(u32));
|
||||
if (put_user(ptr_to_compat(arg.__pad), uptr))
|
||||
return -EFAULT;
|
||||
return compat_sys_semctl(semid, semnum, cmd, uptr);
|
||||
}
|
||||
#endif
|
||||
|
||||
struct sysctl_args32
|
||||
{
|
||||
|
||||
@ -149,8 +149,8 @@ EXPORT(sysn32_call_table)
|
||||
PTR sys_mincore
|
||||
PTR sys_madvise
|
||||
PTR sys_shmget
|
||||
PTR sys32_shmat
|
||||
PTR sys_shmctl /* 6030 */
|
||||
PTR sys_shmat
|
||||
PTR compat_sys_shmctl /* 6030 */
|
||||
PTR sys_dup
|
||||
PTR sys_dup2
|
||||
PTR sys_pause
|
||||
@ -184,12 +184,12 @@ EXPORT(sysn32_call_table)
|
||||
PTR sys32_newuname
|
||||
PTR sys_semget
|
||||
PTR sys_semop
|
||||
PTR sys_semctl
|
||||
PTR sysn32_semctl
|
||||
PTR sys_shmdt /* 6065 */
|
||||
PTR sys_msgget
|
||||
PTR sys_msgsnd
|
||||
PTR sys_msgrcv
|
||||
PTR sys_msgctl
|
||||
PTR compat_sys_msgsnd
|
||||
PTR compat_sys_msgrcv
|
||||
PTR compat_sys_msgctl
|
||||
PTR compat_sys_fcntl /* 6070 */
|
||||
PTR sys_flock
|
||||
PTR sys_fsync
|
||||
@ -335,7 +335,7 @@ EXPORT(sysn32_call_table)
|
||||
PTR compat_sys_fcntl64
|
||||
PTR sys_set_tid_address
|
||||
PTR sys_restart_syscall
|
||||
PTR sys_semtimedop /* 6215 */
|
||||
PTR compat_sys_semtimedop /* 6215 */
|
||||
PTR sys_fadvise64_64
|
||||
PTR compat_sys_statfs64
|
||||
PTR compat_sys_fstatfs64
|
||||
|
||||
@ -32,6 +32,7 @@ typedef struct {
|
||||
s32 val[2];
|
||||
} compat_fsid_t;
|
||||
typedef s32 compat_timer_t;
|
||||
typedef s32 compat_key_t;
|
||||
|
||||
typedef s32 compat_int_t;
|
||||
typedef s32 compat_long_t;
|
||||
@ -146,4 +147,71 @@ static inline void __user *compat_alloc_user_space(long len)
|
||||
return (void __user *) (regs->regs[29] - 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_mode_t mode;
|
||||
unsigned short seq;
|
||||
unsigned short __pad2;
|
||||
compat_ulong_t __unused1;
|
||||
compat_ulong_t __unused2;
|
||||
};
|
||||
|
||||
struct compat_semid64_ds {
|
||||
struct compat_ipc64_perm sem_perm;
|
||||
compat_time_t sem_otime;
|
||||
compat_time_t sem_ctime;
|
||||
compat_ulong_t sem_nsems;
|
||||
compat_ulong_t __unused1;
|
||||
compat_ulong_t __unused2;
|
||||
};
|
||||
|
||||
struct compat_msqid64_ds {
|
||||
struct compat_ipc64_perm msg_perm;
|
||||
#ifndef CONFIG_CPU_LITTLE_ENDIAN
|
||||
compat_ulong_t __unused1;
|
||||
#endif
|
||||
compat_time_t msg_stime;
|
||||
#ifdef CONFIG_CPU_LITTLE_ENDIAN
|
||||
compat_ulong_t __unused1;
|
||||
#endif
|
||||
#ifndef CONFIG_CPU_LITTLE_ENDIAN
|
||||
compat_ulong_t __unused2;
|
||||
#endif
|
||||
compat_time_t msg_rtime;
|
||||
#ifdef CONFIG_CPU_LITTLE_ENDIAN
|
||||
compat_ulong_t __unused2;
|
||||
#endif
|
||||
#ifndef CONFIG_CPU_LITTLE_ENDIAN
|
||||
compat_ulong_t __unused3;
|
||||
#endif
|
||||
compat_time_t msg_ctime;
|
||||
#ifdef CONFIG_CPU_LITTLE_ENDIAN
|
||||
compat_ulong_t __unused3;
|
||||
#endif
|
||||
compat_ulong_t msg_cbytes;
|
||||
compat_ulong_t msg_qnum;
|
||||
compat_ulong_t msg_qbytes;
|
||||
compat_pid_t msg_lspid;
|
||||
compat_pid_t msg_lrpid;
|
||||
compat_ulong_t __unused4;
|
||||
compat_ulong_t __unused5;
|
||||
};
|
||||
|
||||
struct compat_shmid64_ds {
|
||||
struct compat_ipc64_perm shm_perm;
|
||||
compat_size_t shm_segsz;
|
||||
compat_time_t shm_atime;
|
||||
compat_time_t shm_dtime;
|
||||
compat_time_t shm_ctime;
|
||||
compat_pid_t shm_cpid;
|
||||
compat_pid_t shm_lpid;
|
||||
compat_ulong_t shm_nattch;
|
||||
compat_ulong_t __unused1;
|
||||
compat_ulong_t __unused2;
|
||||
};
|
||||
|
||||
#endif /* _ASM_COMPAT_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user