You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
123 lines
3.5 KiB
123 lines
3.5 KiB
4 months ago
|
/*
|
||
|
|
* Check decoding of ipc syscall.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. The name of the author may not be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "tests.h"
|
||
|
|
#include <asm/unistd.h>
|
||
|
|
|
||
|
|
#if defined __NR_ipc && defined HAVE_LINUX_IPC_H
|
||
|
|
|
||
|
|
# include <errno.h>
|
||
|
|
# include <stdio.h>
|
||
|
|
# include <unistd.h>
|
||
|
|
# include <linux/ipc.h>
|
||
|
|
|
||
|
|
# ifndef SEMCTL
|
||
|
|
# define SEMCTL 3
|
||
|
|
# endif
|
||
|
|
# ifndef MSGRCV
|
||
|
|
# define MSGRCV 12
|
||
|
|
# endif
|
||
|
|
|
||
|
|
static int
|
||
|
|
ipc_call(const unsigned short version, const unsigned short call,
|
||
|
|
long a1, long a2, long a3, long a4, long a5)
|
||
|
|
{
|
||
|
|
const unsigned long val =
|
||
|
|
(unsigned long) 0xfacefeed00000000ULL |
|
||
|
|
(unsigned int) version << 16 |
|
||
|
|
call;
|
||
|
|
|
||
|
|
return syscall(__NR_ipc, val, a1, a2, a3, a4, a5);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
ipc_call0(const unsigned short version, const unsigned short call)
|
||
|
|
{
|
||
|
|
int rc = ipc_call(version, call, 0, 0, 0, 0, 0);
|
||
|
|
int saved_errno = errno;
|
||
|
|
printf("ipc(");
|
||
|
|
if (version)
|
||
|
|
printf("%hu<<16|", version);
|
||
|
|
errno = saved_errno;
|
||
|
|
printf("%hu, 0, 0, 0, 0%s) = %d %s (%m)\n", call,
|
||
|
|
# ifdef __s390__
|
||
|
|
"",
|
||
|
|
# else
|
||
|
|
", 0",
|
||
|
|
# endif
|
||
|
|
rc, errno2name());
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
main(void)
|
||
|
|
{
|
||
|
|
void *const efault = tail_alloc(1) + 1;
|
||
|
|
|
||
|
|
int rc = ipc_call(0, SEMCTL, 0, 0, 0, (long) efault, 0);
|
||
|
|
if (rc != -1 || EFAULT != errno)
|
||
|
|
perror_msg_and_skip("ipc");
|
||
|
|
printf("semctl(0, 0, IPC_RMID, %p) = -1 EFAULT (%m)\n", efault);
|
||
|
|
|
||
|
|
unsigned short call;
|
||
|
|
for (call = 0; call <= 40; call += 10) {
|
||
|
|
ipc_call0(0, call);
|
||
|
|
ipc_call0(42, call);
|
||
|
|
}
|
||
|
|
|
||
|
|
rc = ipc_call(42, SEMCTL, 0, 0, 0, (long) efault, 0);
|
||
|
|
int test_version = EFAULT == errno;
|
||
|
|
if (test_version)
|
||
|
|
printf("semctl(0, 0, IPC_RMID, %p) = %d %s (%m)\n",
|
||
|
|
efault, rc, errno2name());
|
||
|
|
else
|
||
|
|
printf("ipc(42<<16|SEMCTL, 0, 0, 0, %p) = %d %s (%m)\n",
|
||
|
|
efault, rc, errno2name());
|
||
|
|
|
||
|
|
if (test_version) {
|
||
|
|
const int msqid = -2;
|
||
|
|
const long msgsz = -3;
|
||
|
|
const long msgtyp = 0;
|
||
|
|
|
||
|
|
rc = ipc_call(1, MSGRCV,
|
||
|
|
msqid, msgsz, IPC_NOWAIT, (long) efault, msgtyp);
|
||
|
|
printf("msgrcv(%d, %p, %lu, %ld, IPC_NOWAIT) = %d %s (%m)\n",
|
||
|
|
msqid, efault, msgsz, msgtyp, rc, errno2name());
|
||
|
|
}
|
||
|
|
|
||
|
|
puts("+++ exited with 0 +++");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
SKIP_MAIN_UNDEFINED("__NR_ipc && HAVE_LINUX_IPC_H")
|
||
|
|
|
||
|
|
#endif
|