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* sysdeps/gnu/bits/msq.h: Qualify kernel's

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data structure pointers as __unbounded. 
* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise. 
* sysdeps/generic/bp-semctl.h: New file. 
* sysdeps/unix/sysv/linux/msgctl.c: Qualify kernel's data structure 
pointers as __unbounded.  Check bounds of syscall args. 
* sysdeps/unix/sysv/linux/msgrcv.c: Likewise. 
* sysdeps/unix/sysv/linux/msgsnd.c: Likewise. 
* sysdeps/unix/sysv/linux/semctl.c: Likewise. 
* sysdeps/unix/sysv/linux/semop.c: Likewise. 
* sysdeps/unix/sysv/linux/shmat.c: Likewise. 
* sysdeps/unix/sysv/linux/shmctl.c: Likewise. 
* sysdeps/unix/sysv/linux/shmdt.c: Likewise. 
* sysdeps/unix/sysv/linux/alpha/msgctl.c: Likewise. 
* sysdeps/unix/sysv/linux/alpha/semctl.c: Likewise. 
* sysdeps/unix/sysv/linux/alpha/shmctl.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/msgctl.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/semctl.c: Likewise. 
* sysdeps/unix/sysv/linux/i386/shmctl.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/msgctl.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/semctl.c: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sparc64/shmctl.c: Likewise.
2000-07-26  Greg McGary  <greg@mcgary.org>

	* sysdeps/gnu/bits/msq.h: Qualify kernel's
	data structure pointers as __unbounded.
	* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise.
	* sysdeps/generic/bp-semctl.h: New file.
	* sysdeps/unix/sysv/linux/msgctl.c: Qualify kernel's data structure
	pointers as __unbounded.  Check bounds of syscall args.
	* sysdeps/unix/sysv/linux/msgrcv.c: Likewise.
	* sysdeps/unix/sysv/linux/msgsnd.c: Likewise.
	* sysdeps/unix/sysv/linux/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/semop.c: Likewise.
	* sysdeps/unix/sysv/linux/shmat.c: Likewise.
	* sysdeps/unix/sysv/linux/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/shmdt.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/msgctl.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/msgctl.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/shmctl.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/msgctl.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/semctl.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/shmctl.c: Likewise.
This commit is contained in:
Greg McGary
2000-07-27 06:25:28 +00:00
parent 4362aba591
commit d25c879dc5
21 changed files with 250 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
sysdeps/unix/sysv/linux/shmctl.c
View File

@ -26,6 +26,7 @@
#include <sys/syscall.h>
#include <bits/wordsize.h>
#include <shlib-compat.h>
#include <bp-checks.h>
#include "kernel-features.h"
@ -40,8 +41,8 @@ struct __old_shmid_ds
__ipc_pid_t shm_lpid; /* pid of last shmop */
unsigned short int shm_nattch; /* number of current attaches */
unsigned short int __shm_npages; /* size of segment (pages) */
unsigned long int *__shm_pages; /* array of ptrs to frames -> SHMMAX */
struct vm_area_struct *__attaches; /* descriptors for attaches */
unsigned long int *__unbounded __shm_pages; /* array of ptrs to frames -> SHMMAX */
struct vm_area_struct *__unbounded __attaches; /* descriptors for attaches */
};
struct __old_shminfo
@ -63,7 +64,8 @@ int __new_shmctl (int, int, struct shmid_ds *);
int
__old_shmctl (int shmid, int cmd, struct __old_shmid_ds *buf)
{
return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd, 0, buf);
return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid,
cmd, 0, CHECK_1opt (buf));
}
compat_symbol (libc, __old_shmctl, shmctl, GLIBC_2_0);
#endif
@ -72,7 +74,7 @@ int
__new_shmctl (int shmid, int cmd, struct shmid_ds *buf)
{
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd | __IPC_64, 0, buf);
return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd | __IPC_64, 0, CHECK_1 (buf));
#else
switch (cmd) {
case SHM_STAT:
@ -83,7 +85,7 @@ __new_shmctl (int shmid, int cmd, struct shmid_ds *buf)
#endif
break;
default:
return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd, 0, buf);
return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd, 0, CHECK_1 (buf));
}
{
@ -92,7 +94,7 @@ __new_shmctl (int shmid, int cmd, struct shmid_ds *buf)
/* Unfortunately there is no way how to find out for sure whether
we should use old or new shmctl. */
result = INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd | __IPC_64, 0, buf);
result = INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd | __IPC_64, 0, CHECK_1 (buf));
if (result != -1 || errno != EINVAL)
return result;
@ -109,7 +111,7 @@ __new_shmctl (int shmid, int cmd, struct shmid_ds *buf)
return -1;
}
}
result = INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd, 0, &old);
result = INLINE_SYSCALL (ipc, 5, IPCOP_shmctl, shmid, cmd, 0, __ptrvalue (&old));
if (result != -1 && (cmd == SHM_STAT || cmd == IPC_STAT))
{
memset(buf, 0, sizeof(*buf));