1 /* $NetBSD: dumptab.c,v 1.9 2008/05/02 19:22:10 xtraeme Exp $ */ 2 3 #include <sys/cdefs.h> 4 #ifndef lint 5 __RCSID("$NetBSD: dumptab.c,v 1.9 2008/05/02 19:22:10 xtraeme Exp $"); 6 #endif 7 8 /* 9 * dumptab.c - handles dumping the database 10 */ 11 12 #include <sys/types.h> 13 #include <netinet/in.h> 14 #include <arpa/inet.h> /* inet_ntoa */ 15 16 #include <stdio.h> 17 #include <stdlib.h> 18 #include <strings.h> 19 #include <syslog.h> 20 #include <time.h> 21 22 #include "bootp.h" 23 #include "hash.h" 24 #include "hwaddr.h" 25 #include "report.h" 26 #include "patchlevel.h" 27 #include "bootpd.h" 28 29 static void dump_generic(FILE *, struct shared_bindata *); 30 static void dump_host(FILE *, struct host *); 31 static void list_ipaddresses(FILE *, struct in_addr_list *); 32 void dumptab(const char *); 33 34 #ifndef DEBUG 35 void 36 dumptab(const char *filename) 37 { 38 report(LOG_INFO, "No dumptab support!"); 39 } 40 41 #else /* DEBUG */ 42 43 /* 44 * Dump the internal memory database to bootpd_dump. 45 */ 46 47 void 48 dumptab(const char *filename) 49 { 50 int n; 51 struct host *hp; 52 FILE *fp; 53 time_t t; 54 /* Print symbols in alphabetical order for reader's convenience. */ 55 static char legend[] = "#\n# Legend:\t(see bootptab.5)\n\ 56 #\tfirst field -- hostname (not indented)\n\ 57 #\tbf -- bootfile\n\ 58 #\tbs -- bootfile size in 512-octet blocks\n\ 59 #\tcs -- cookie servers\n\ 60 #\tdf -- dump file name\n\ 61 #\tdn -- domain name\n\ 62 #\tds -- domain name servers\n\ 63 #\tef -- extension file\n\ 64 #\tex -- exec file (YORK_EX_OPTION)\n\ 65 #\tgw -- gateways\n\ 66 #\tha -- hardware address\n\ 67 #\thd -- home directory for bootfiles\n\ 68 #\thn -- host name set for client\n\ 69 #\tht -- hardware type\n\ 70 #\tim -- impress servers\n\ 71 #\tip -- host IP address\n\ 72 #\tlg -- log servers\n\ 73 #\tlp -- LPR servers\n\ 74 #\tms -- message size\n\ 75 #\tmw -- min wait (secs)\n\ 76 #\tns -- IEN-116 name servers\n\ 77 #\tnt -- NTP servers (RFC 1129)\n\ 78 #\tra -- reply address override\n\ 79 #\trl -- resource location protocol servers\n\ 80 #\trp -- root path\n\ 81 #\tsa -- boot server address\n\ 82 #\tsm -- subnet mask\n\ 83 #\tsw -- swap server\n\ 84 #\ttc -- template host (points to similar host entry)\n\ 85 #\ttd -- TFTP directory\n\ 86 #\tto -- time offset (seconds)\n\ 87 #\tts -- time servers\n\ 88 #\tvm -- vendor magic number\n\ 89 #\tyd -- YP (NIS) domain\n\ 90 #\tys -- YP (NIS) servers\n\ 91 #\tTn -- generic option tag n\n\ 92 \n"; 93 94 /* 95 * Open bootpd.dump file. 96 */ 97 if ((fp = fopen(filename, "w")) == NULL) { 98 report(LOG_ERR, "error opening \"%s\": %s", 99 filename, get_errmsg()); 100 exit(1); 101 } 102 t = time(NULL); 103 fprintf(fp, "\n# %s %s.%d\n", progname, VERSION, PATCHLEVEL); 104 fprintf(fp, "# %s: dump of bootp server database.\n", filename); 105 fprintf(fp, "# Dump taken %s", ctime(&t)); 106 fwrite(legend, 1, sizeof(legend) - 1, fp); 107 108 n = 0; 109 for (hp = (struct host *) hash_FirstEntry(nmhashtable); hp != NULL; 110 hp = (struct host *) hash_NextEntry(nmhashtable)) { 111 dump_host(fp, hp); 112 fprintf(fp, "\n"); 113 n++; 114 } 115 fclose(fp); 116 117 report(LOG_INFO, "dumped %d entries to \"%s\".", n, filename); 118 } 119 120 122 123 /* 124 * Dump all the available information on the host pointed to by "hp". 125 * The output is sent to the file pointed to by "fp". 126 */ 127 128 static void 129 dump_host(FILE *fp, struct host *hp) 130 { 131 /* Print symbols in alphabetical order for reader's convenience. */ 132 if (hp) { 133 fprintf(fp, "%s:", (hp->hostname ? 134 hp->hostname->string : "?")); 135 if (hp->flags.bootfile) { 136 fprintf(fp, "\\\n\t:bf=%s:", hp->bootfile->string); 137 } 138 if (hp->flags.bootsize) { 139 fprintf(fp, "\\\n\t:bs="); 140 if (hp->flags.bootsize_auto) { 141 fprintf(fp, "auto:"); 142 } else { 143 fprintf(fp, "%d:", hp->bootsize); 144 } 145 } 146 if (hp->flags.cookie_server) { 147 fprintf(fp, "\\\n\t:cs="); 148 list_ipaddresses(fp, hp->cookie_server); 149 fprintf(fp, ":"); 150 } 151 if (hp->flags.dump_file) { 152 fprintf(fp, "\\\n\t:df=%s:", hp->dump_file->string); 153 } 154 if (hp->flags.domain_name) { 155 fprintf(fp, "\\\n\t:dn=%s:", hp->domain_name->string); 156 } 157 if (hp->flags.domain_server) { 158 fprintf(fp, "\\\n\t:ds="); 159 list_ipaddresses(fp, hp->domain_server); 160 fprintf(fp, ":"); 161 } 162 if (hp->flags.exten_file) { 163 fprintf(fp, "\\\n\t:ef=%s:", hp->exten_file->string); 164 } 165 if (hp->flags.exec_file) { 166 fprintf(fp, "\\\n\t:ex=%s:", hp->exec_file->string); 167 } 168 if (hp->flags.gateway) { 169 fprintf(fp, "\\\n\t:gw="); 170 list_ipaddresses(fp, hp->gateway); 171 fprintf(fp, ":"); 172 } 173 /* FdC: swap_server (see below) */ 174 if (hp->flags.homedir) { 175 fprintf(fp, "\\\n\t:hd=%s:", hp->homedir->string); 176 } 177 /* FdC: dump_file (see above) */ 178 /* FdC: domain_name (see above) */ 179 /* FdC: root_path (see below) */ 180 if (hp->flags.name_switch && hp->flags.send_name) { 181 fprintf(fp, "\\\n\t:hn:"); 182 } 183 if (hp->flags.htype) { 184 int hlen = haddrlength(hp->htype); 185 fprintf(fp, "\\\n\t:ht=%u:", (unsigned) hp->htype); 186 if (hp->flags.haddr) { 187 fprintf(fp, "ha=\"%s\":", 188 haddrtoa(hp->haddr, hlen)); 189 } 190 } 191 if (hp->flags.impress_server) { 192 fprintf(fp, "\\\n\t:im="); 193 list_ipaddresses(fp, hp->impress_server); 194 fprintf(fp, ":"); 195 } 196 /* NetBSD: swap_server (see below) */ 197 if (hp->flags.iaddr) { 198 fprintf(fp, "\\\n\t:ip=%s:", inet_ntoa(hp->iaddr)); 199 } 200 if (hp->flags.log_server) { 201 fprintf(fp, "\\\n\t:lg="); 202 list_ipaddresses(fp, hp->log_server); 203 fprintf(fp, ":"); 204 } 205 if (hp->flags.lpr_server) { 206 fprintf(fp, "\\\n\t:lp="); 207 list_ipaddresses(fp, hp->lpr_server); 208 fprintf(fp, ":"); 209 } 210 if (hp->flags.msg_size) { 211 fprintf(fp, "\\\n\t:ms=%d:", hp->msg_size); 212 } 213 if (hp->flags.min_wait) { 214 fprintf(fp, "\\\n\t:mw=%d:", hp->min_wait); 215 } 216 if (hp->flags.name_server) { 217 fprintf(fp, "\\\n\t:ns="); 218 list_ipaddresses(fp, hp->name_server); 219 fprintf(fp, ":"); 220 } 221 if (hp->flags.ntp_server) { 222 fprintf(fp, "\\\n\t:nt="); 223 list_ipaddresses(fp, hp->ntp_server); 224 fprintf(fp, ":"); 225 } 226 if (hp->flags.reply_addr) { 227 fprintf(fp, "\\\n\t:ra=%s:", inet_ntoa(hp->reply_addr)); 228 } 229 if (hp->flags.rlp_server) { 230 fprintf(fp, "\\\n\t:rl="); 231 list_ipaddresses(fp, hp->rlp_server); 232 fprintf(fp, ":"); 233 } 234 if (hp->flags.root_path) { 235 fprintf(fp, "\\\n\t:rp=%s:", hp->root_path->string); 236 } 237 if (hp->flags.bootserver) { 238 fprintf(fp, "\\\n\t:sa=%s:", inet_ntoa(hp->bootserver)); 239 } 240 if (hp->flags.subnet_mask) { 241 fprintf(fp, "\\\n\t:sm=%s:", inet_ntoa(hp->subnet_mask)); 242 } 243 if (hp->flags.swap_server) { 244 fprintf(fp, "\\\n\t:sw=%s:", inet_ntoa(hp->subnet_mask)); 245 } 246 if (hp->flags.tftpdir) { 247 fprintf(fp, "\\\n\t:td=%s:", hp->tftpdir->string); 248 } 249 /* NetBSD: rootpath (see above) */ 250 /* NetBSD: domainname (see above) */ 251 /* NetBSD: dumpfile (see above) */ 252 if (hp->flags.time_offset) { 253 fprintf(fp, "\\\n\t:to=%ld:", (long)hp->time_offset); 254 } 255 if (hp->flags.time_server) { 256 fprintf(fp, "\\\n\t:ts="); 257 list_ipaddresses(fp, hp->time_server); 258 fprintf(fp, ":"); 259 } 260 if (hp->flags.vm_cookie) { 261 fprintf(fp, "\\\n\t:vm="); 262 if (!bcmp(hp->vm_cookie, vm_rfc1048, 4)) { 263 fprintf(fp, "rfc1048:"); 264 } else if (!bcmp(hp->vm_cookie, vm_cmu, 4)) { 265 fprintf(fp, "cmu:"); 266 } else { 267 fprintf(fp, "%d.%d.%d.%d:", 268 (int) ((hp->vm_cookie)[0]), 269 (int) ((hp->vm_cookie)[1]), 270 (int) ((hp->vm_cookie)[2]), 271 (int) ((hp->vm_cookie)[3])); 272 } 273 } 274 if (hp->flags.nis_domain) { 275 fprintf(fp, "\\\n\t:yd=%s:", 276 hp->nis_domain->string); 277 } 278 if (hp->flags.nis_server) { 279 fprintf(fp, "\\\n\t:ys="); 280 list_ipaddresses(fp, hp->nis_server); 281 fprintf(fp, ":"); 282 } 283 /* 284 * XXX - Add new tags here (or above, 285 * so they print in alphabetical order). 286 */ 287 288 if (hp->flags.generic) { 289 dump_generic(fp, hp->generic); 290 } 291 } 292 } 293 294 296 static void 297 dump_generic(FILE *fp, struct shared_bindata *generic) 298 { 299 u_char *bp = generic->data; 300 u_char *ep = bp + generic->length; 301 u_char tag; 302 int len; 303 304 while (bp < ep) { 305 tag = *bp++; 306 if (tag == TAG_PAD) 307 continue; 308 if (tag == TAG_END) 309 return; 310 len = *bp++; 311 if (bp + len > ep) { 312 fprintf(fp, " #junk in generic! :"); 313 return; 314 } 315 fprintf(fp, "\\\n\t:T%d=", tag); 316 while (len) { 317 fprintf(fp, "%02X", *bp); 318 bp++; 319 len--; 320 if (len) 321 fprintf(fp, "."); 322 } 323 fprintf(fp, ":"); 324 } 325 } 326 327 329 330 /* 331 * Dump an entire struct in_addr_list of IP addresses to the indicated file. 332 * 333 * The addresses are printed in standard ASCII "dot" notation and separated 334 * from one another by a single space. A single leading space is also 335 * printed before the first address. 336 * 337 * Null lists produce no output (and no error). 338 */ 339 340 static void 341 list_ipaddresses(FILE *fp, struct in_addr_list *ipptr) 342 { 343 unsigned count; 344 struct in_addr *addrptr; 345 346 if (ipptr) { 347 count = ipptr->addrcount; 348 addrptr = ipptr->addr; 349 while (count > 0) { 350 fprintf(fp, "%s", inet_ntoa(*addrptr++)); 351 count--; 352 if (count) 353 fprintf(fp, ", "); 354 } 355 } 356 } 357 358 #endif /* DEBUG */ 359 360 /* 361 * Local Variables: 362 * tab-width: 4 363 * c-indent-level: 4 364 * c-argdecl-indent: 4 365 * c-continued-statement-offset: 4 366 * c-continued-brace-offset: -4 367 * c-label-offset: -4 368 * c-brace-offset: 0 369 * End: 370 */ 371