135 lines
3.9 KiB
C
135 lines
3.9 KiB
C
/*
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* Check decoding of out-of-range syscalls.
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*
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2016-2018 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include "sysent.h"
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <asm/unistd.h>
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#include "sysent_shorthand_defs.h"
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static const struct_sysent syscallent[] = {
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#include "syscallent.h"
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};
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#include "sysent_shorthand_undefs.h"
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#ifndef DEBUG_PRINT
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# define DEBUG_PRINT 0
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#endif
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#if defined __X32_SYSCALL_BIT && defined __NR_read \
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&& (__X32_SYSCALL_BIT & __NR_read) != 0
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# define SYSCALL_BIT __X32_SYSCALL_BIT
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#else
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# define SYSCALL_BIT 0
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#endif
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#if DEBUG_PRINT
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static const char *strace_name;
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static FILE *debug_out;
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#endif
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static void
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test_syscall(const unsigned long nr)
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{
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static const kernel_ulong_t a[] = {
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(kernel_ulong_t) 0xface0fedbadc0dedULL,
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(kernel_ulong_t) 0xface1fedbadc1dedULL,
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(kernel_ulong_t) 0xface2fedbadc2dedULL,
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(kernel_ulong_t) 0xface3fedbadc3dedULL,
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(kernel_ulong_t) 0xface4fedbadc4dedULL,
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(kernel_ulong_t) 0xface5fedbadc5dedULL
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};
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long rc = syscall(nr | SYSCALL_BIT,
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a[0], a[1], a[2], a[3], a[4], a[5]);
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#if DEBUG_PRINT
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fprintf(debug_out, "%s: pid %d invalid syscall %#lx\n",
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strace_name, getpid(), nr | SYSCALL_BIT);
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#endif
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#ifdef LINUX_MIPSO32
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printf("syscall(%#lx, %#lx, %#lx, %#lx, %#lx, %#lx, %#lx)"
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" = %s\n", nr | SYSCALL_BIT,
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a[0], a[1], a[2], a[3], a[4], a[5], sprintrc(rc));
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#else
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printf("syscall_%#lx(%#llx, %#llx, %#llx, %#llx, %#llx, %#llx)"
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" = %s\n", nr | SYSCALL_BIT,
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(unsigned long long) a[0],
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(unsigned long long) a[1],
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(unsigned long long) a[2],
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(unsigned long long) a[3],
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(unsigned long long) a[4],
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(unsigned long long) a[5],
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sprintrc(rc));
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#endif
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}
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int
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main(int argc, char *argv[])
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{
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#if DEBUG_PRINT
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if (argc < 3)
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error_msg_and_fail("Not enough arguments. "
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"Usage: %s STRACE_NAME DEBUG_OUT_FD",
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argv[0]);
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strace_name = argv[1];
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errno = 0;
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int debug_out_fd = strtol(argv[2], NULL, 0);
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if (errno)
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error_msg_and_fail("Not a number: %s", argv[2]);
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debug_out = fdopen(debug_out_fd, "a");
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if (!debug_out)
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perror_msg_and_fail("fdopen: %d", debug_out_fd);
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#endif
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test_syscall(ARRAY_SIZE(syscallent));
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(void) syscallent; /* workaround for clang bug #33068 */
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#ifdef SYS_socket_subcall
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test_syscall(SYS_socket_subcall + 1);
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#endif
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#ifdef SYS_ipc_subcall
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test_syscall(SYS_ipc_subcall + 1);
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#endif
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puts("+++ exited with 0 +++");
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return 0;
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}
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