libexec/bootpd/dumptab.c

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