mopprobe.c revision 1.7
1 /* $NetBSD: mopprobe.c,v 1.7 2001/02/19 23:22:45 cgd 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: mopprobe.c,v 1.7 2001/02/19 23:22:45 cgd Exp $"); 35 #endif 36 37 /* 38 * mopprobe - MOP Probe Utility 39 * 40 * Usage: mopprobe -a [ -3 | -4 ] 41 * mopprobe [ -3 | -4 ] interface 42 */ 43 44 #include "os.h" 45 #include "cmp.h" 46 #include "common.h" 47 #include "device.h" 48 #include "get.h" 49 #include "mopdef.h" 50 #include "nmadef.h" 51 #include "pf.h" 52 #include "print.h" 53 54 /* 55 * The list of all interfaces that are being listened to. rarp_loop() 56 * "selects" on the descriptors in this list. 57 */ 58 struct if_info *iflist; 59 60 void Usage __P((void)); 61 int main __P((int, char **)); 62 void mopProcess __P((struct if_info *, u_char *)); 63 64 int AllFlag = 0; /* listen on "all" interfaces */ 65 int DebugFlag = 0; /* print debugging messages */ 66 int Not3Flag = 0; /* Not MOP V3 messages */ 67 int Not4Flag = 0; /* Not MOP V4 messages */ 68 int oflag = 0; /* print only once */ 69 int promisc = 1; /* Need promisc mode */ 70 71 int 72 main(argc, argv) 73 int argc; 74 char **argv; 75 { 76 int op; 77 char *interface; 78 79 /* All error reporting is done through syslogs. */ 80 openlog("mopprobe", LOG_PID, LOG_DAEMON); 81 82 opterr = 0; 83 while ((op = getopt(argc, argv, "ado")) != -1) { 84 switch (op) { 85 case '3': 86 Not3Flag++; 87 break; 88 case '4': 89 Not4Flag++; 90 break; 91 case 'a': 92 AllFlag++; 93 break; 94 case 'd': 95 DebugFlag++; 96 break; 97 case 'o': 98 oflag++; 99 break; 100 101 default: 102 Usage(); 103 /* NOTREACHED */ 104 } 105 } 106 interface = argv[optind++]; 107 108 if ((AllFlag && interface) || 109 (!AllFlag && interface == 0) || 110 (Not3Flag && Not4Flag)) 111 Usage(); 112 113 if (AllFlag) 114 deviceInitAll(); 115 else 116 deviceInitOne(interface); 117 118 Loop(); 119 /* NOTREACHED */ 120 return (0); 121 } 122 123 void 124 Usage() 125 { 126 (void) fprintf(stderr, "usage: %s -a [ -3 | -4 ]\n", getprogname()); 127 (void) fprintf(stderr, " %s [ -3 | -4 ] interface\n", 128 getprogname()); 129 exit(1); 130 } 131 132 /* 133 * Process incomming packages. 134 */ 135 void 136 mopProcess(ii, pkt) 137 struct if_info *ii; 138 u_char *pkt; 139 { 140 u_char *dst, *src, *p, mopcode, tmpc, ilen; 141 u_short *ptype, moplen, tmps, itype, len; 142 int index, i, device, trans; 143 144 dst = pkt; 145 src = pkt+6; 146 ptype = (u_short *)(pkt+12); 147 index = 0; 148 149 if (*ptype < 1600) { 150 len = *ptype; 151 trans = TRANS_8023; 152 ptype = (u_short *)(pkt+20); 153 p = pkt+22; 154 if (Not4Flag) return; 155 } else { 156 len = 0; 157 trans = TRANS_ETHER; 158 p = pkt+14; 159 if (Not3Flag) return; 160 } 161 162 /* Ignore our own messages */ 163 164 if (mopCmpEAddr(ii->eaddr,src) == 0) { 165 return; 166 } 167 168 /* Just check multicast */ 169 170 if (mopCmpEAddr(rc_mcst,dst) != 0) { 171 return; 172 } 173 174 switch (trans) { 175 case TRANS_8023: 176 moplen = len; 177 break; 178 default: 179 moplen = mopGetShort(pkt,&index); 180 } 181 mopcode = mopGetChar(p,&index); 182 183 /* Just process System Information */ 184 185 if (mopcode != MOP_K_CODE_SID) { 186 return; 187 } 188 189 tmpc = mopGetChar(pkt,&index); /* Reserved */ 190 tmps = mopGetShort(pkt,&index); /* Receipt # */ 191 192 device = 0; /* Unknown Device */ 193 194 itype = mopGetShort(pkt,&index); 195 196 while (index < (int)(moplen + 2)) { 197 ilen = mopGetChar(pkt,&index); 198 switch (itype) { 199 case 0: 200 tmpc = mopGetChar(pkt,&index); 201 index = index + tmpc; 202 break; 203 case MOP_K_INFO_VER: 204 index = index + 3; 205 break; 206 case MOP_K_INFO_MFCT: 207 index = index + 2; 208 break; 209 case MOP_K_INFO_CNU: 210 index = index + 6; 211 break; 212 case MOP_K_INFO_RTM: 213 index = index + 2; 214 break; 215 case MOP_K_INFO_CSZ: 216 index = index + 2; 217 break; 218 case MOP_K_INFO_RSZ: 219 index = index + 2; 220 break; 221 case MOP_K_INFO_HWA: 222 index = index + 6; 223 break; 224 case MOP_K_INFO_TIME: 225 index = index + 10; 226 break; 227 case MOP_K_INFO_SOFD: 228 device = mopGetChar(pkt,&index); 229 break; 230 case MOP_K_INFO_SFID: 231 tmpc = mopGetChar(pkt,&index); 232 if ((index > 0) && (index < 17)) 233 index = index + tmpc; 234 break; 235 case MOP_K_INFO_PRTY: 236 index = index + 1; 237 break; 238 case MOP_K_INFO_DLTY: 239 index = index + 1; 240 break; 241 case MOP_K_INFO_DLBSZ: 242 index = index + 2; 243 break; 244 default: 245 if (((device = NMA_C_SOFD_LCS) || /* DECserver 100 */ 246 (device = NMA_C_SOFD_DS2) || /* DECserver 200 */ 247 (device = NMA_C_SOFD_DP2) || /* DECserver 250 */ 248 (device = NMA_C_SOFD_DS3)) && /* DECserver 300 */ 249 ((itype > 101) && (itype < 107))) 250 { 251 switch (itype) { 252 case 102: 253 index = index + ilen; 254 break; 255 case 103: 256 index = index + ilen; 257 break; 258 case 104: 259 index = index + 2; 260 break; 261 case 105: 262 (void)fprintf(stdout,"%x:%x:%x:%x:%x:%x\t", 263 src[0],src[1],src[2],src[3],src[4],src[5]); 264 for (i = 0; i < ilen; i++) { 265 (void)fprintf(stdout, "%c",pkt[index+i]); 266 } 267 index = index + ilen; 268 (void)fprintf(stdout, "\n"); 269 break; 270 case 106: 271 index = index + ilen; 272 break; 273 }; 274 } else { 275 index = index + ilen; 276 }; 277 } 278 itype = mopGetShort(pkt,&index); 279 } 280 281 } 282 283
Indexes created Tue Sep 30 20:09:53 GMT 2025