1 /*- 2 * Copyright (c) 2005-2008 Apple Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 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 * 3. Neither the name of Apple Inc. ("Apple") nor the names of 15 * its contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $P4: //depot/projects/trustedbsd/openbsm/bin/audit/audit.c#13 $ 30 */ 31 /* 32 * Program to trigger the audit daemon with a message that is either: 33 * - Open a new audit log file 34 * - Read the audit control file and take action on it 35 * - Close the audit log file and exit 36 * 37 */ 38 39 #include <sys/types.h> 40 #include <config/config.h> 41 #ifdef HAVE_FULL_QUEUE_H 42 #include <sys/queue.h> 43 #else /* !HAVE_FULL_QUEUE_H */ 44 #include <compat/queue.h> 45 #endif /* !HAVE_FULL_QUEUE_H */ 46 #include <sys/uio.h> 47 48 #include <bsm/libbsm.h> 49 50 #include <errno.h> 51 #include <fcntl.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <unistd.h> 55 56 57 static int send_trigger(unsigned int); 58 59 #ifdef USE_MACH_IPC 60 #include <mach/mach.h> 61 #include <servers/netname.h> 62 #include <mach/message.h> 63 #include <mach/port.h> 64 #include <mach/mach_error.h> 65 #include <mach/host_special_ports.h> 66 #include <servers/bootstrap.h> 67 68 #include "auditd_control.h" 69 70 /* 71 * XXX the following is temporary until this can be added to the kernel 72 * audit.h header. 73 */ 74 #ifndef AUDIT_TRIGGER_INITIALIZE 75 #define AUDIT_TRIGGER_INITIALIZE 7 76 #endif 77 78 static int 79 send_trigger(unsigned int trigger) 80 { 81 mach_port_t serverPort; 82 kern_return_t error; 83 84 error = host_get_audit_control_port(mach_host_self(), &serverPort); 85 if (error != KERN_SUCCESS) { 86 if (geteuid() != 0) { 87 errno = EPERM; 88 perror("audit requires root privileges"); 89 } else 90 mach_error("Cannot get auditd_control Mach port:", 91 error); 92 return (-1); 93 } 94 95 error = auditd_control(serverPort, trigger); 96 if (error != KERN_SUCCESS) { 97 mach_error("Error sending trigger: ", error); 98 return (-1); 99 } 100 101 return (0); 102 } 103 104 #else /* ! USE_MACH_IPC */ 105 106 static int 107 send_trigger(unsigned int trigger) 108 { 109 int error; 110 111 error = auditon(A_SENDTRIGGER, &trigger, sizeof(trigger)); 112 if (error != 0) { 113 if (error == EPERM) 114 perror("audit requires root privileges"); 115 else 116 perror("Error sending trigger"); 117 return (-1); 118 } 119 120 return (0); 121 } 122 #endif /* ! USE_MACH_IPC */ 123 124 static void 125 usage(void) 126 { 127 128 (void)fprintf(stderr, "Usage: audit -i | -n | -s | -t \n"); 129 exit(-1); 130 } 131 132 /* 133 * Main routine to process command line options. 134 */ 135 int 136 main(int argc, char **argv) 137 { 138 int ch; 139 unsigned int trigger = 0; 140 141 if (argc != 2) 142 usage(); 143 144 while ((ch = getopt(argc, argv, "inst")) != -1) { 145 switch(ch) { 146 147 case 'i': 148 trigger = AUDIT_TRIGGER_INITIALIZE; 149 break; 150 151 case 'n': 152 trigger = AUDIT_TRIGGER_ROTATE_USER; 153 break; 154 155 case 's': 156 trigger = AUDIT_TRIGGER_READ_FILE; 157 break; 158 159 case 't': 160 trigger = AUDIT_TRIGGER_CLOSE_AND_DIE; 161 break; 162 163 case '?': 164 default: 165 usage(); 166 break; 167 } 168 } 169 if (send_trigger(trigger) < 0) 170 exit(-1); 171 172 printf("Trigger sent.\n"); 173 exit (0); 174 } 175