1 /*- 2 * Copyright (c) 2009-2011 Robert N. M. Watson 3 * Copyright (c) 2011 Jonathan Anderson 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Test routines to make sure a variety of system calls are or are not 30 * available in capability mode. The goal is not to see if they work, just 31 * whether or not they return the expected ECAPMODE. 32 */ 33 34 #include <sys/cdefs.h> 35 #include <sys/types.h> 36 37 #include <sys/capsium.h> 38 #include <sys/errno.h> 39 #include <sys/procdesc.h> 40 #include <sys/resource.h> 41 #include <sys/stat.h> 42 #include <sys/wait.h> 43 44 #include <err.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <unistd.h> 48 49 #include <stdio.h> 50 #include <time.h> 51 52 #include "cap_test.h" 53 54 int 55 test_pdfork(void) 56 { 57 struct stat stat; 58 int success = PASSED; 59 int pd, error; 60 pid_t pid; 61 time_t now; 62 63 //cap_enter(); 64 65 pid = pdfork(&pd, 0); 66 if (pid < 0) 67 err(-1, "pdfork"); 68 69 else if (pid == 0) { 70 /* 71 * Child process. 72 * 73 * pd should not be a valid process descriptor. 74 */ 75 error = pdgetpid(pd, &pid); 76 if (error != -1) 77 FAILX("pdgetpid succeeded"); 78 else if (errno != EBADF) 79 FAIL("pdgetpid failed, but errno != EBADF"); 80 81 exit(success); 82 } 83 84 /* Parent process. Ensure that [acm]times have been set correctly. */ 85 REQUIRE(fstat(pd, &stat)); 86 87 now = time(NULL); 88 CHECK(now != (time_t)-1); 89 90 CHECK(now >= stat.st_birthtime); 91 CHECK((now - stat.st_birthtime) < 2); 92 CHECK(stat.st_birthtime == stat.st_atime); 93 CHECK(stat.st_atime == stat.st_ctime); 94 CHECK(stat.st_ctime == stat.st_mtime); 95 96 /* Wait for the child to finish. */ 97 error = pdgetpid(pd, &pid); 98 CHECK(error == 0); 99 CHECK(pid > 0); 100 101 int status; 102 while (waitpid(pid, &status, 0) != pid) {} 103 if ((success == PASSED) && WIFEXITED(status)) 104 success = WEXITSTATUS(status); 105 else 106 success = FAILED; 107 108 return (success); 109 } 110