1d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes/* 2d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Check decoding of prlimit64 syscall. 3d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 4d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 5d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * All rights reserved. 6d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 7d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Redistribution and use in source and binary forms, with or without 8d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * modification, are permitted provided that the following conditions 9d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * are met: 10d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 1. Redistributions of source code must retain the above copyright 11d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer. 12d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 2. Redistributions in binary form must reproduce the above copyright 13d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer in the 14d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * documentation and/or other materials provided with the distribution. 15d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 3. The name of the author may not be used to endorse or promote products 16d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * derived from this software without specific prior written permission. 17d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 18d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes */ 29d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 30d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "tests.h" 31d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <asm/unistd.h> 32d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 33d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#ifdef __NR_prlimit64 34d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 35d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <inttypes.h> 36d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <stdio.h> 37d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <stdint.h> 38d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <sys/resource.h> 39d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <unistd.h> 40d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 41d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include "xlat.h" 42d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include "xlat/resources.h" 43d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 44d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesconst char * 45d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughessprint_rlim(uint64_t lim) 46d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 47d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (lim == -1ULL) 48d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return "RLIM64_INFINITY"; 49d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 50d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static char buf[2][sizeof(lim)*3 + sizeof("*1024")]; 51d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static int i; 52d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes i &= 1; 53d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (lim > 1024 && lim % 1024 == 0) 54d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sprintf(buf[i], "%" PRIu64 "*1024", lim / 1024); 55d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes else 56d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sprintf(buf[i], "%" PRIu64, lim); 57d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 58d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return buf[i++]; 59d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 60d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesint 62d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesmain(void) 63d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 64d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes unsigned long pid = 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned long) 0xdefaced00000000ULL | (unsigned) getpid(); 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes uint64_t *const rlimit = tail_alloc(sizeof(*rlimit) * 2); 67d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct xlat *xlat; 68d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 69d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes for (xlat = resources; xlat->str; ++xlat) { 70d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes unsigned long res = 0xfacefeed00000000ULL | xlat->val; 71d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes long rc = syscall(__NR_prlimit64, pid, res, 0, rlimit); 72d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (rc) 73d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("prlimit64(%d, %s, NULL, %p) = %ld %s (%m)\n", 74d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) pid, xlat->str, rlimit, 75d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc, errno2name()); 76d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes else 77d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("prlimit64(%d, %s, NULL" 78d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes ", {rlim_cur=%s, rlim_max=%s}) = 0\n", 79d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (unsigned) pid, xlat->str, 80d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sprint_rlim(rlimit[0]), 81d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sprint_rlim(rlimit[1])); 82d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 83d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 84d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes puts("+++ exited with 0 +++"); 85d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return 0; 86d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 87d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 88d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#else 89d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 90d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott HughesSKIP_MAIN_UNDEFINED("__NR_prlimit64") 91d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 92d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#endif 93