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/*
* Check decoding of out-of-range syscalls.
*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2016-2018 The strace developers.
* 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 "sysent.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <asm/unistd.h>
#include "sysent_shorthand_defs.h"
static const struct_sysent syscallent[] = {
#include "syscallent.h"
};
#include "sysent_shorthand_undefs.h"
#ifndef DEBUG_PRINT
# define DEBUG_PRINT 0
#endif
#if defined __X32_SYSCALL_BIT && defined __NR_read \
&& (__X32_SYSCALL_BIT & __NR_read) != 0
# define SYSCALL_BIT __X32_SYSCALL_BIT
#else
# define SYSCALL_BIT 0
#endif
#if DEBUG_PRINT
static const char *strace_name;
static FILE *debug_out;
#endif
static void
test_syscall(const unsigned long nr)
{
static const kernel_ulong_t a[] = {
(kernel_ulong_t) 0xface0fedbadc0dedULL,
(kernel_ulong_t) 0xface1fedbadc1dedULL,
(kernel_ulong_t) 0xface2fedbadc2dedULL,
(kernel_ulong_t) 0xface3fedbadc3dedULL,
(kernel_ulong_t) 0xface4fedbadc4dedULL,
(kernel_ulong_t) 0xface5fedbadc5dedULL
};
long rc = syscall(nr | SYSCALL_BIT,
a[0], a[1], a[2], a[3], a[4], a[5]);
#if DEBUG_PRINT
fprintf(debug_out, "%s: pid %d invalid syscall %#lx\n",
strace_name, getpid(), nr | SYSCALL_BIT);
#endif
#ifdef LINUX_MIPSO32
printf("syscall(%#lx, %#lx, %#lx, %#lx, %#lx, %#lx, %#lx)"
" = %ld ENOSYS (%m)\n", nr | SYSCALL_BIT,
a[0], a[1], a[2], a[3], a[4], a[5], rc);
#else
printf("syscall_%#lx(%#llx, %#llx, %#llx, %#llx, %#llx, %#llx)"
" = %ld (errno %d)\n", nr | SYSCALL_BIT,
(unsigned long long) a[0],
(unsigned long long) a[1],
(unsigned long long) a[2],
(unsigned long long) a[3],
(unsigned long long) a[4],
(unsigned long long) a[5],
rc, errno);
#endif
}
int
main(int argc, char *argv[])
{
#if DEBUG_PRINT
if (argc < 3)
error_msg_and_fail("Not enough arguments. "
"Usage: %s STRACE_NAME DEBUG_OUT_FD",
argv[0]);
strace_name = argv[1];
errno = 0;
int debug_out_fd = strtol(argv[2], NULL, 0);
if (errno)
error_msg_and_fail("Not a number: %s", argv[2]);
debug_out = fdopen(debug_out_fd, "a");
if (!debug_out)
perror_msg_and_fail("fdopen: %d", debug_out_fd);
#endif
test_syscall(ARRAY_SIZE(syscallent));
#ifdef SYS_socket_subcall
test_syscall(SYS_socket_subcall + 1);
#endif
#ifdef SYS_ipc_subcall
test_syscall(SYS_ipc_subcall + 1);
#endif
puts("+++ exited with 0 +++");
return 0;
}
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