| /* |
| * Check decoding of init_module syscall. |
| * |
| * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com> |
| * 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_init_module) |
| |
| # include <stdio.h> |
| # include <unistd.h> |
| |
| # include "init_delete_module.h" |
| |
| int |
| main(void) |
| { |
| |
| static const kernel_ulong_t bogus_addr = |
| (kernel_ulong_t) 0xfffffeedfffffaceULL; |
| static const kernel_ulong_t bogus_len = |
| (kernel_ulong_t) 0xfffffca7ffffc0deULL; |
| |
| long rc; |
| char *bogus_param1 = tail_alloc(PARAM1_LEN); |
| char *bogus_param2 = tail_alloc(PARAM2_LEN); |
| const char *errstr; |
| |
| fill_memory_ex(bogus_param1, PARAM1_LEN, PARAM1_BASE, PARAM1_LEN); |
| fill_memory_ex(bogus_param2, PARAM2_LEN, PARAM2_BASE, PARAM2_LEN); |
| |
| rc = syscall(__NR_init_module, NULL, bogus_zero, NULL); |
| printf("init_module(NULL, %llu, NULL) = %s\n", |
| (unsigned long long) bogus_zero, sprintrc(rc)); |
| |
| rc = syscall(__NR_init_module, bogus_addr, 0, bogus_param1); |
| errstr = sprintrc(rc); |
| |
| printf("init_module(%#llx, 0, \"", (unsigned long long) bogus_addr); |
| print_str(PARAM1_BASE, MAX_STRLEN, false); |
| printf("\"...) = %s\n", errstr); |
| |
| bogus_param1[PARAM1_LEN - 1] = '\0'; |
| |
| rc = syscall(__NR_init_module, bogus_addr, 0, bogus_param1); |
| errstr = sprintrc(rc); |
| |
| printf("init_module(%#llx, 0, \"", (unsigned long long) bogus_addr); |
| print_str(PARAM1_BASE, MAX_STRLEN, false); |
| printf("\") = %s\n", errstr); |
| |
| rc = syscall(__NR_init_module, bogus_addr, bogus_len, |
| bogus_param2 + PARAM2_LEN); |
| printf("init_module(%#llx, %llu, %p) = %s\n", |
| (unsigned long long) bogus_addr, (unsigned long long) bogus_len, |
| bogus_param2 + PARAM2_LEN, sprintrc(rc)); |
| |
| rc = syscall(__NR_init_module, NULL, bogus_len, bogus_param2); |
| printf("init_module(NULL, %llu, %p) = %s\n", |
| (unsigned long long) bogus_len, bogus_param2, sprintrc(rc)); |
| |
| bogus_param2[PARAM2_LEN - 1] = '\0'; |
| |
| rc = syscall(__NR_init_module, NULL, bogus_len, bogus_param2); |
| errstr = sprintrc(rc); |
| |
| printf("init_module(NULL, %llu, \"", (unsigned long long) bogus_len); |
| print_str(PARAM2_BASE, PARAM2_LEN - 1, true); |
| printf("\") = %s\n", errstr); |
| |
| puts("+++ exited with 0 +++"); |
| |
| return 0; |
| } |
| |
| #else |
| |
| SKIP_MAIN_UNDEFINED("__NR_init_module"); |
| |
| #endif |