1 /* 2 * dumptab.c - handles dumping the database 3 * 4 * $FreeBSD$ 5 */ 6 7 #include <sys/types.h> 8 #include <netinet/in.h> 9 #include <arpa/inet.h> /* inet_ntoa */ 10 11 #include <stdio.h> 12 #include <stdlib.h> 13 #include <syslog.h> 14 #include <time.h> 15 16 #ifndef USE_BFUNCS 17 #include <memory.h> 18 /* Yes, memcpy is OK here (no overlapped copies). */ 19 #define bcopy(a,b,c) memcpy(b,a,c) 20 #define bzero(p,l) memset(p,0,l) 21 #define bcmp(a,b,c) memcmp(a,b,c) 22 #endif 23 24 #include "bootp.h" 25 #include "hash.h" 26 #include "hwaddr.h" 27 #include "report.h" 28 #include "patchlevel.h" 29 #include "bootpd.h" 30 31 #define P(args) args 32 33 #ifdef DEBUG 34 static void dump_generic P((FILE *, struct shared_bindata *)); 35 static void dump_host P((FILE *, struct host *)); 36 static void list_ipaddresses P((FILE *, struct in_addr_list *)); 37 #endif 38 39 #undef P 40 41 #ifndef DEBUG 42 void 43 dumptab(filename) 44 char *filename; 45 { 46 report(LOG_INFO, "No dumptab support!"); 47 } 48 49 #else /* DEBUG */ 50 51 /* 52 * Dump the internal memory database to bootpd_dump. 53 */ 54 55 void 56 dumptab(filename) 57 char *filename; 58 { 59 int n; 60 struct host *hp; 61 FILE *fp; 62 time_t t; 63 /* Print symbols in alphabetical order for reader's convenience. */ 64 static char legend[] = "#\n# Legend:\t(see bootptab.5)\n\ 65 #\tfirst field -- hostname (not indented)\n\ 66 #\tbf -- bootfile\n\ 67 #\tbs -- bootfile size in 512-octet blocks\n\ 68 #\tcs -- cookie servers\n\ 69 #\tdf -- dump file name\n\ 70 #\tdn -- domain name\n\ 71 #\tds -- domain name servers\n\ 72 #\tef -- extension file\n\ 73 #\tex -- exec file (YORK_EX_OPTION)\n\ 74 #\tgw -- gateways\n\ 75 #\tha -- hardware address\n\ 76 #\thd -- home directory for bootfiles\n\ 77 #\thn -- host name set for client\n\ 78 #\tht -- hardware type\n\ 79 #\tim -- impress servers\n\ 80 #\tip -- host IP address\n\ 81 #\tlg -- log servers\n\ 82 #\tlp -- LPR servers\n\ 83 #\tms -- message size\n\ 84 #\tmw -- min wait (secs)\n\ 85 #\tns -- IEN-116 name servers\n\ 86 #\tnt -- NTP servers (RFC 1129)\n\ 87 #\tra -- reply address override\n\ 88 #\trl -- resource location protocol servers\n\ 89 #\trp -- root path\n\ 90 #\tsa -- boot server address\n\ 91 #\tsm -- subnet mask\n\ 92 #\tsw -- swap server\n\ 93 #\ttc -- template host (points to similar host entry)\n\ 94 #\ttd -- TFTP directory\n\ 95 #\tto -- time offset (seconds)\n\ 96 #\tts -- time servers\n\ 97 #\tvm -- vendor magic number\n\ 98 #\tyd -- YP (NIS) domain\n\ 99 #\tys -- YP (NIS) servers\n\ 100 #\tTn -- generic option tag n\n\ 101 \n"; 102 103 /* 104 * Open bootpd.dump file. 105 */ 106 if ((fp = fopen(filename, "w")) == NULL) { 107 report(LOG_ERR, "error opening \"%s\": %s", 108 filename, get_errmsg()); 109 exit(1); 110 } 111 t = time(NULL); 112 fprintf(fp, "\n# %s %s.%d\n", progname, VERSION, PATCHLEVEL); 113 fprintf(fp, "# %s: dump of bootp server database.\n", filename); 114 fprintf(fp, "# Dump taken %s", ctime(&t)); 115 fwrite(legend, 1, sizeof(legend) - 1, fp); 116 117 n = 0; 118 for (hp = (struct host *) hash_FirstEntry(nmhashtable); hp != NULL; 119 hp = (struct host *) hash_NextEntry(nmhashtable)) { 120 dump_host(fp, hp); 121 fprintf(fp, "\n"); 122 n++; 123 } 124 fclose(fp); 125 126 report(LOG_INFO, "dumped %d entries to \"%s\".", n, filename); 127 } 128 129 130 131 /* 132 * Dump all the available information on the host pointed to by "hp". 133 * The output is sent to the file pointed to by "fp". 134 */ 135 136 static void 137 dump_host(fp, hp) 138 FILE *fp; 139 struct host *hp; 140 { 141 /* Print symbols in alphabetical order for reader's convenience. */ 142 if (hp) { 143 fprintf(fp, "%s:", (hp->hostname ? 144 hp->hostname->string : "?")); 145 if (hp->flags.bootfile) { 146 fprintf(fp, "\\\n\t:bf=%s:", hp->bootfile->string); 147 } 148 if (hp->flags.bootsize) { 149 fprintf(fp, "\\\n\t:bs="); 150 if (hp->flags.bootsize_auto) { 151 fprintf(fp, "auto:"); 152 } else { 153 fprintf(fp, "%lu:", (u_long)hp->bootsize); 154 } 155 } 156 if (hp->flags.cookie_server) { 157 fprintf(fp, "\\\n\t:cs="); 158 list_ipaddresses(fp, hp->cookie_server); 159 fprintf(fp, ":"); 160 } 161 if (hp->flags.dump_file) { 162 fprintf(fp, "\\\n\t:df=%s:", hp->dump_file->string); 163 } 164 if (hp->flags.domain_name) { 165 fprintf(fp, "\\\n\t:dn=%s:", hp->domain_name->string); 166 } 167 if (hp->flags.domain_server) { 168 fprintf(fp, "\\\n\t:ds="); 169 list_ipaddresses(fp, hp->domain_server); 170 fprintf(fp, ":"); 171 } 172 if (hp->flags.exten_file) { 173 fprintf(fp, "\\\n\t:ef=%s:", hp->exten_file->string); 174 } 175 if (hp->flags.exec_file) { 176 fprintf(fp, "\\\n\t:ex=%s:", hp->exec_file->string); 177 } 178 if (hp->flags.gateway) { 179 fprintf(fp, "\\\n\t:gw="); 180 list_ipaddresses(fp, hp->gateway); 181 fprintf(fp, ":"); 182 } 183 /* FdC: swap_server (see below) */ 184 if (hp->flags.homedir) { 185 fprintf(fp, "\\\n\t:hd=%s:", hp->homedir->string); 186 } 187 /* FdC: dump_file (see above) */ 188 /* FdC: domain_name (see above) */ 189 /* FdC: root_path (see below) */ 190 if (hp->flags.name_switch && hp->flags.send_name) { 191 fprintf(fp, "\\\n\t:hn:"); 192 } 193 if (hp->flags.htype) { 194 int hlen = haddrlength(hp->htype); 195 fprintf(fp, "\\\n\t:ht=%u:", (unsigned) hp->htype); 196 if (hp->flags.haddr) { 197 fprintf(fp, "ha=\"%s\":", 198 haddrtoa(hp->haddr, hlen)); 199 } 200 } 201 if (hp->flags.impress_server) { 202 fprintf(fp, "\\\n\t:im="); 203 list_ipaddresses(fp, hp->impress_server); 204 fprintf(fp, ":"); 205 } 206 /* NetBSD: swap_server (see below) */ 207 if (hp->flags.iaddr) { 208 fprintf(fp, "\\\n\t:ip=%s:", inet_ntoa(hp->iaddr)); 209 } 210 if (hp->flags.log_server) { 211 fprintf(fp, "\\\n\t:lg="); 212 list_ipaddresses(fp, hp->log_server); 213 fprintf(fp, ":"); 214 } 215 if (hp->flags.lpr_server) { 216 fprintf(fp, "\\\n\t:lp="); 217 list_ipaddresses(fp, hp->lpr_server); 218 fprintf(fp, ":"); 219 } 220 if (hp->flags.msg_size) { 221 fprintf(fp, "\\\n\t:ms=%lu:", (u_long)hp->msg_size); 222 } 223 if (hp->flags.min_wait) { 224 fprintf(fp, "\\\n\t:mw=%lu:", (u_long)hp->min_wait); 225 } 226 if (hp->flags.name_server) { 227 fprintf(fp, "\\\n\t:ns="); 228 list_ipaddresses(fp, hp->name_server); 229 fprintf(fp, ":"); 230 } 231 if (hp->flags.ntp_server) { 232 fprintf(fp, "\\\n\t:nt="); 233 list_ipaddresses(fp, hp->ntp_server); 234 fprintf(fp, ":"); 235 } 236 if (hp->flags.reply_addr) { 237 fprintf(fp, "\\\n\t:ra=%s:", inet_ntoa(hp->reply_addr)); 238 } 239 if (hp->flags.rlp_server) { 240 fprintf(fp, "\\\n\t:rl="); 241 list_ipaddresses(fp, hp->rlp_server); 242 fprintf(fp, ":"); 243 } 244 if (hp->flags.root_path) { 245 fprintf(fp, "\\\n\t:rp=%s:", hp->root_path->string); 246 } 247 if (hp->flags.bootserver) { 248 fprintf(fp, "\\\n\t:sa=%s:", inet_ntoa(hp->bootserver)); 249 } 250 if (hp->flags.subnet_mask) { 251 fprintf(fp, "\\\n\t:sm=%s:", inet_ntoa(hp->subnet_mask)); 252 } 253 if (hp->flags.swap_server) { 254 fprintf(fp, "\\\n\t:sw=%s:", inet_ntoa(hp->subnet_mask)); 255 } 256 if (hp->flags.tftpdir) { 257 fprintf(fp, "\\\n\t:td=%s:", hp->tftpdir->string); 258 } 259 /* NetBSD: rootpath (see above) */ 260 /* NetBSD: domainname (see above) */ 261 /* NetBSD: dumpfile (see above) */ 262 if (hp->flags.time_offset) { 263 fprintf(fp, "\\\n\t:to=%ld:", (long)hp->time_offset); 264 } 265 if (hp->flags.time_server) { 266 fprintf(fp, "\\\n\t:ts="); 267 list_ipaddresses(fp, hp->time_server); 268 fprintf(fp, ":"); 269 } 270 if (hp->flags.vm_cookie) { 271 fprintf(fp, "\\\n\t:vm="); 272 if (!bcmp(hp->vm_cookie, vm_rfc1048, 4)) { 273 fprintf(fp, "rfc1048:"); 274 } else if (!bcmp(hp->vm_cookie, vm_cmu, 4)) { 275 fprintf(fp, "cmu:"); 276 } else { 277 fprintf(fp, "%d.%d.%d.%d:", 278 (int) ((hp->vm_cookie)[0]), 279 (int) ((hp->vm_cookie)[1]), 280 (int) ((hp->vm_cookie)[2]), 281 (int) ((hp->vm_cookie)[3])); 282 } 283 } 284 if (hp->flags.nis_domain) { 285 fprintf(fp, "\\\n\t:yd=%s:", 286 hp->nis_domain->string); 287 } 288 if (hp->flags.nis_server) { 289 fprintf(fp, "\\\n\t:ys="); 290 list_ipaddresses(fp, hp->nis_server); 291 fprintf(fp, ":"); 292 } 293 /* 294 * XXX - Add new tags here (or above, 295 * so they print in alphabetical order). 296 */ 297 298 if (hp->flags.generic) { 299 dump_generic(fp, hp->generic); 300 } 301 } 302 } 303 304 305 static void 306 dump_generic(fp, generic) 307 FILE *fp; 308 struct shared_bindata *generic; 309 { 310 u_char *bp = generic->data; 311 u_char *ep = bp + generic->length; 312 u_char tag; 313 int len; 314 315 while (bp < ep) { 316 tag = *bp++; 317 if (tag == TAG_PAD) 318 continue; 319 if (tag == TAG_END) 320 return; 321 len = *bp++; 322 if (bp + len > ep) { 323 fprintf(fp, " #junk in generic! :"); 324 return; 325 } 326 fprintf(fp, "\\\n\t:T%d=", tag); 327 while (len) { 328 fprintf(fp, "%02X", *bp); 329 bp++; 330 len--; 331 if (len) 332 fprintf(fp, "."); 333 } 334 fprintf(fp, ":"); 335 } 336 } 337 338 339 340 /* 341 * Dump an entire struct in_addr_list of IP addresses to the indicated file. 342 * 343 * The addresses are printed in standard ASCII "dot" notation and separated 344 * from one another by a single space. A single leading space is also 345 * printed before the first adddress. 346 * 347 * Null lists produce no output (and no error). 348 */ 349 350 static void 351 list_ipaddresses(fp, ipptr) 352 FILE *fp; 353 struct in_addr_list *ipptr; 354 { 355 unsigned count; 356 struct in_addr *addrptr; 357 358 if (ipptr) { 359 count = ipptr->addrcount; 360 addrptr = ipptr->addr; 361 while (count > 0) { 362 fprintf(fp, "%s", inet_ntoa(*addrptr++)); 363 count--; 364 if (count) 365 fprintf(fp, ", "); 366 } 367 } 368 } 369 370 #endif /* DEBUG */ 371 372 /* 373 * Local Variables: 374 * tab-width: 4 375 * c-indent-level: 4 376 * c-argdecl-indent: 4 377 * c-continued-statement-offset: 4 378 * c-continued-brace-offset: -4 379 * c-label-offset: -4 380 * c-brace-offset: 0 381 * End: 382 */ 383