1 /* $NetBSD: mopd.c,v 1.10 2002/11/05 14:18:05 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1993-96 Mats O Jansson. 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 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Mats O Jansson. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __RCSID("$NetBSD: mopd.c,v 1.10 2002/11/05 14:18:05 thorpej Exp $"); 35 #endif 36 37 /* 38 * mopd - MOP Dump/Load Daemon 39 * 40 * Usage: mopd -a [ -d -f -v ] [ -3 | -4 ] 41 * mopd [ -d -f -v ] [ -3 | -4 ] interface 42 */ 43 44 #include "os.h" 45 #include "cmp.h" 46 #include "common.h" 47 #include "device.h" 48 #include "dl.h" 49 #include "get.h" 50 #include "mopdef.h" 51 #include "pf.h" 52 #include "print.h" 53 #include "process.h" 54 #include "rc.h" 55 56 #include <util.h> 57 58 /* 59 * The list of all interfaces that are being listened to. 60 * "selects" on the descriptors in this list. 61 */ 62 struct if_info *iflist; 63 64 void Usage __P((void)); 65 int main __P((int, char **)); 66 void mopProcess __P((struct if_info *, u_char *)); 67 68 int AllFlag = 0; /* listen on "all" interfaces */ 69 int DebugFlag = 0; /* print debugging messages */ 70 int ForegroundFlag = 0; /* run in foreground */ 71 int VersionFlag = 0; /* print version */ 72 int Not3Flag = 0; /* Not MOP V3 messages. */ 73 int Not4Flag = 0; /* Not MOP V4 messages. */ 74 int promisc = 1; /* Need promisc mode */ 75 char *MopdDir = MOP_FILE_PATH; /* Path to mop directory */ 76 77 int 78 main(argc, argv) 79 int argc; 80 char **argv; 81 { 82 int c, pid; 83 84 extern char version[]; 85 86 while ((c = getopt(argc, argv, "34adfs:v")) != -1) { 87 switch (c) { 88 case '3': 89 Not3Flag++; 90 break; 91 case '4': 92 Not4Flag++; 93 break; 94 case 'a': 95 AllFlag++; 96 break; 97 case 'd': 98 DebugFlag++; 99 break; 100 case 'f': 101 ForegroundFlag++; 102 break; 103 case 's': 104 MopdDir = optarg; 105 break; 106 case 'v': 107 VersionFlag++; 108 break; 109 default: 110 Usage(); 111 /* NOTREACHED */ 112 } 113 } 114 argc -= optind; 115 argv += optind; 116 117 if (VersionFlag) { 118 fprintf(stdout,"%s: version %s\n", getprogname(), version); 119 exit(0); 120 } 121 122 if ((AllFlag && argc != 0) || (!AllFlag && argc == 0) || 123 (Not3Flag && Not4Flag)) 124 Usage(); 125 126 /* All error reporting is done through syslogs. */ 127 openlog("mopd", LOG_PID, LOG_DAEMON); 128 129 if ((!ForegroundFlag) && DebugFlag) 130 fprintf(stdout, 131 "%s: not running as daemon, -d given.\n", getprogname()); 132 133 if ((!ForegroundFlag) && (!DebugFlag)) { 134 pid = fork(); 135 if (pid > 0) 136 /* Parent exits, leaving child in background. */ 137 exit(0); 138 else 139 if (pid == -1) { 140 syslog(LOG_ERR, "cannot fork"); 141 exit(0); 142 } 143 144 /* Fade into the background */ 145 daemon(0, 0); 146 pidfile(NULL); 147 } 148 149 syslog(LOG_INFO, "%s %s started.", getprogname(), version); 150 151 if (AllFlag) 152 deviceInitAll(); 153 else { 154 while (argc--) 155 deviceInitOne(*argv++); 156 } 157 158 Loop(); 159 /* NOTREACHED */ 160 return (0); 161 } 162 163 void 164 Usage() 165 { 166 (void) fprintf(stderr, "usage: %s -a [ -d -f -v ] [ -3 | -4 ]\n", 167 getprogname()); 168 (void) fprintf(stderr, " %s [ -d -f -v ] [ -3 | -4 ]\n", 169 getprogname()); 170 (void) fprintf(stderr, " interface [...]\n"); 171 exit(1); 172 } 173 174 /* 175 * Process incomming packages. 176 */ 177 void 178 mopProcess(ii, pkt) 179 struct if_info *ii; 180 u_char *pkt; 181 { 182 u_char *dst, *src; 183 u_short ptype; 184 int index, trans, len; 185 186 /* We don't known with transport, Guess! */ 187 188 trans = mopGetTrans(pkt, 0); 189 190 /* Ok, return if we don't wan't this message */ 191 192 if ((trans == TRANS_ETHER) && Not3Flag) return; 193 if ((trans == TRANS_8023) && Not4Flag) return; 194 195 index = 0; 196 mopGetHeader(pkt, &index, &dst, &src, &ptype, &len, trans); 197 198 /* 199 * Ignore our own transmissions 200 * 201 */ 202 if (mopCmpEAddr(ii->eaddr,src) == 0) 203 return; 204 205 switch(ptype) { 206 case MOP_K_PROTO_DL: 207 mopProcessDL(stdout, ii, pkt, &index, dst, src, trans, len); 208 break; 209 case MOP_K_PROTO_RC: 210 mopProcessRC(stdout, ii, pkt, &index, dst, src, trans, len); 211 break; 212 default: 213 break; 214 } 215 } 216