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.
122 lines
3.5 KiB
122 lines
3.5 KiB
/* |
|
* 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
|
|
|