ipc_shm.c revision d35df493b4e7684c50d2d2fa032ee3a7ac228009
1d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes/* 2d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com> 3d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org> 4d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * All rights reserved. 5d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 6d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Redistribution and use in source and binary forms, with or without 7d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * modification, are permitted provided that the following conditions 8d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * are met: 9d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 1. Redistributions of source code must retain the above copyright 10d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer. 11d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 2. Redistributions in binary form must reproduce the above copyright 12d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer in the 13d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * documentation and/or other materials provided with the distribution. 14d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 3. The name of the author may not be used to endorse or promote products 15d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * derived from this software without specific prior written permission. 16d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 17d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes */ 28d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 29d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "tests.h" 30d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <errno.h> 31d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <stdio.h> 32d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <stdlib.h> 33d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <sys/shm.h> 34d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 35d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "xlat.h" 36d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "xlat/shm_resource_flags.h" 37d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 38d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic int id = -1; 39d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 40d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 41d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughescleanup(void) 42d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 43d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes shmctl(id, IPC_RMID, NULL); 44d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmctl\\(%d, (IPC_64\\|)?IPC_RMID, NULL\\) += 0\n", id); 45d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes id = -1; 46d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 47d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 48d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesint 49d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesmain(void) 50d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 51d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const key_t private_key = 52d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (key_t) (0xffffffff00000000ULL | IPC_PRIVATE); 53d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const key_t bogus_key = (key_t) 0xeca86420fdb97531ULL; 54d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const int bogus_id = 0xdefaced1; 55d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const int bogus_cmd = 0xdefaced2; 56d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static void * const bogus_addr = (void *) -1L; 57d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const size_t bogus_size = 58d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes /* 59d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * musl sets size to SIZE_MAX if size argument is greater than 60d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * PTRDIFF_MAX - musl/src/ipc/shmget.c 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes */ 62d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes #ifdef __GLIBC__ 63d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (size_t) 0xdec0ded1dec0ded2ULL; 64d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes #else 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (size_t) 0x1e55c0de5dec0dedULL; 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes #endif 67d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const int bogus_flags = 0xface1e55; 68d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 69d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes int rc; 70d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes struct shmid_ds ds; 71d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 72d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = shmget(bogus_key, bogus_size, bogus_flags); 73d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmget\\(%#llx, %zu, %s%s%s%#x\\|%#04o\\) += %s\n", 74d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes zero_extend_signed_to_ull(bogus_key), bogus_size, 75d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes IPC_CREAT & bogus_flags ? "IPC_CREAT\\|" : "", 76d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes IPC_EXCL & bogus_flags ? "IPC_EXCL\\|" : "", 77d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes SHM_HUGETLB & bogus_flags ? "SHM_HUGETLB\\|" : "", 78d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes bogus_flags & ~(0777 | IPC_CREAT | IPC_EXCL | SHM_HUGETLB), 79d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes bogus_flags & 0777, sprintrc_grep(rc)); 80d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 81d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes id = shmget(private_key, 1, 0600); 82d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (id < 0) 83d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_skip("shmget"); 84d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmget\\(IPC_PRIVATE, 1, 0600\\) += %d\n", id); 85d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes atexit(cleanup); 86d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 87d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = shmctl(bogus_id, bogus_cmd, NULL); 88d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmctl\\(%d, (IPC_64\\|)?%#x /\\* SHM_\\?\\?\\? \\*/, NULL\\)" 89d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " += %s\n", bogus_id, bogus_cmd, sprintrc_grep(rc)); 90d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 91d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = shmctl(bogus_id, IPC_STAT, bogus_addr); 92d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmctl\\(%d, (IPC_64\\|)?IPC_STAT, %p\\) += %s\n", 93d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes bogus_id, bogus_addr, sprintrc_grep(rc)); 94d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 95d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (shmctl(id, IPC_STAT, &ds)) 96d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_skip("shmctl IPC_STAT"); 97d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmctl\\(%d, (IPC_64\\|)?IPC_STAT, \\{shm_perm=\\{uid=%u, gid=%u, " 98d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes "mode=%#o, key=%u, cuid=%u, cgid=%u\\}, shm_segsz=%u, shm_cpid=%u, " 99d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes "shm_lpid=%u, shm_nattch=%u, shm_atime=%u, shm_dtime=%u, " 100d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes "shm_ctime=%u\\}\\) += 0\n", 101d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes id, (unsigned) ds.shm_perm.uid, (unsigned) ds.shm_perm.gid, 102d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) ds.shm_perm.mode, (unsigned) ds.shm_perm.__key, 103d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) ds.shm_perm.cuid, (unsigned) ds.shm_perm.cgid, 104d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) ds.shm_segsz, (unsigned) ds.shm_cpid, 105d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) ds.shm_lpid, (unsigned) ds.shm_nattch, 106d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) ds.shm_atime, (unsigned) ds.shm_dtime, 107d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) ds. shm_ctime); 108d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 109d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (shmctl(id, IPC_SET, &ds)) 110d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_skip("shmctl IPC_SET"); 111d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmctl\\(%d, (IPC_64\\|)?IPC_SET, \\{shm_perm=\\{uid=%u, gid=%u" 112d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes ", mode=%#o\\}, ...\\}\\) += 0\n", 113d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes id, (unsigned) ds.shm_perm.uid, (unsigned) ds.shm_perm.gid, 114d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) ds.shm_perm.mode); 115d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 116d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = shmctl(0, SHM_INFO, &ds); 117d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmctl\\(0, (IPC_64\\|)?SHM_INFO, %p\\) += %s\n", 118d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes &ds, sprintrc_grep(rc)); 119d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 120d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = shmctl(id, SHM_STAT, &ds); 121d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("shmctl\\(%d, (IPC_64\\|)?SHM_STAT, %p\\) += %s\n", 122d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes id, &ds, sprintrc_grep(rc)); 123d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 124d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return 0; 125d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 126