383 lines
8.8 KiB
C
383 lines
8.8 KiB
C
/*
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* dumptab.c - handles dumping the database
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*/
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/inet.h> /* inet_ntoa */
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#include <stdio.h>
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#include <stdlib.h>
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#include <syslog.h>
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#include <time.h>
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#ifndef USE_BFUNCS
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#include <memory.h>
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/* Yes, memcpy is OK here (no overlapped copies). */
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#define bcopy(a,b,c) memcpy(b,a,c)
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#define bzero(p,l) memset(p,0,l)
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#define bcmp(a,b,c) memcmp(a,b,c)
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#endif
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#include "bootp.h"
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#include "hash.h"
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#include "hwaddr.h"
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#include "report.h"
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#include "patchlevel.h"
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#include "bootpd.h"
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#ifdef __STDC__
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#define P(args) args
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#else
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#define P(args) ()
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#endif
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static void dump_generic P((FILE *, struct shared_bindata *));
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static void dump_host P((FILE *, struct host *));
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static void list_ipaddresses P((FILE *, struct in_addr_list *));
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#undef P
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#ifndef DEBUG
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void
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dumptab(filename)
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char *filename;
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{
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report(LOG_INFO, "No dumptab support!");
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}
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#else /* DEBUG */
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/*
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* Dump the internal memory database to bootpd_dump.
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*/
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void
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dumptab(filename)
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char *filename;
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{
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int n;
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struct host *hp;
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FILE *fp;
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long t;
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/* Print symbols in alphabetical order for reader's convenience. */
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static char legend[] = "#\n# Legend:\t(see bootptab.5)\n\
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#\tfirst field -- hostname (not indented)\n\
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#\tbf -- bootfile\n\
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#\tbs -- bootfile size in 512-octet blocks\n\
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#\tcs -- cookie servers\n\
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#\tdf -- dump file name\n\
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#\tdn -- domain name\n\
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#\tds -- domain name servers\n\
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#\tef -- extension file\n\
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#\tex -- exec file (YORK_EX_OPTION)\n\
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#\tgw -- gateways\n\
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#\tha -- hardware address\n\
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#\thd -- home directory for bootfiles\n\
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#\thn -- host name set for client\n\
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#\tht -- hardware type\n\
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#\tim -- impress servers\n\
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#\tip -- host IP address\n\
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#\tlg -- log servers\n\
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#\tlp -- LPR servers\n\
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#\tms -- message size\n\
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#\tmw -- min wait (secs)\n\
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#\tns -- IEN-116 name servers\n\
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#\tnt -- NTP servers (RFC 1129)\n\
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#\tra -- reply address override\n\
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#\trl -- resource location protocol servers\n\
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#\trp -- root path\n\
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#\tsa -- boot server address\n\
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#\tsm -- subnet mask\n\
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#\tsw -- swap server\n\
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#\ttc -- template host (points to similar host entry)\n\
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#\ttd -- TFTP directory\n\
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#\tto -- time offset (seconds)\n\
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#\tts -- time servers\n\
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#\tvm -- vendor magic number\n\
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#\tyd -- YP (NIS) domain\n\
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#\tys -- YP (NIS) servers\n\
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#\tTn -- generic option tag n\n\
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\n";
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/*
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* Open bootpd.dump file.
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*/
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if ((fp = fopen(filename, "w")) == NULL) {
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report(LOG_ERR, "error opening \"%s\": %s",
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filename, get_errmsg());
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exit(1);
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}
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t = time(NULL);
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fprintf(fp, "\n# %s %s.%d\n", progname, VERSION, PATCHLEVEL);
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fprintf(fp, "# %s: dump of bootp server database.\n", filename);
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fprintf(fp, "# Dump taken %s", ctime(&t));
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fwrite(legend, 1, sizeof(legend) - 1, fp);
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n = 0;
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for (hp = (struct host *) hash_FirstEntry(nmhashtable); hp != NULL;
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hp = (struct host *) hash_NextEntry(nmhashtable)) {
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dump_host(fp, hp);
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fprintf(fp, "\n");
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n++;
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}
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fclose(fp);
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report(LOG_INFO, "dumped %d entries to \"%s\".", n, filename);
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}
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/*
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* Dump all the available information on the host pointed to by "hp".
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* The output is sent to the file pointed to by "fp".
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*/
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static void
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dump_host(fp, hp)
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FILE *fp;
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struct host *hp;
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{
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/* Print symbols in alphabetical order for reader's convenience. */
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if (hp) {
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fprintf(fp, "%s:", (hp->hostname ?
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hp->hostname->string : "?"));
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if (hp->flags.bootfile) {
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fprintf(fp, "\\\n\t:bf=%s:", hp->bootfile->string);
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}
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if (hp->flags.bootsize) {
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fprintf(fp, "\\\n\t:bs=");
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if (hp->flags.bootsize_auto) {
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fprintf(fp, "auto:");
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} else {
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fprintf(fp, "%d:", hp->bootsize);
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}
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}
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if (hp->flags.cookie_server) {
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fprintf(fp, "\\\n\t:cs=");
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list_ipaddresses(fp, hp->cookie_server);
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fprintf(fp, ":");
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}
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if (hp->flags.dump_file) {
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fprintf(fp, "\\\n\t:df=%s:", hp->dump_file->string);
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}
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if (hp->flags.domain_name) {
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fprintf(fp, "\\\n\t:dn=%s:", hp->domain_name->string);
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}
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if (hp->flags.domain_server) {
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fprintf(fp, "\\\n\t:ds=");
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list_ipaddresses(fp, hp->domain_server);
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fprintf(fp, ":");
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}
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if (hp->flags.exten_file) {
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fprintf(fp, "\\\n\t:ef=%s:", hp->exten_file->string);
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}
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if (hp->flags.exec_file) {
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fprintf(fp, "\\\n\t:ex=%s:", hp->exec_file->string);
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}
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if (hp->flags.gateway) {
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fprintf(fp, "\\\n\t:gw=");
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list_ipaddresses(fp, hp->gateway);
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fprintf(fp, ":");
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}
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/* FdC: swap_server (see below) */
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if (hp->flags.homedir) {
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fprintf(fp, "\\\n\t:hd=%s:", hp->homedir->string);
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}
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/* FdC: dump_file (see above) */
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/* FdC: domain_name (see above) */
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/* FdC: root_path (see below) */
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if (hp->flags.name_switch && hp->flags.send_name) {
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fprintf(fp, "\\\n\t:hn:");
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}
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if (hp->flags.htype) {
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int hlen = haddrlength(hp->htype);
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fprintf(fp, "\\\n\t:ht=%u:", (unsigned) hp->htype);
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if (hp->flags.haddr) {
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fprintf(fp, "ha=\"%s\":",
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haddrtoa(hp->haddr, hlen));
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}
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}
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if (hp->flags.impress_server) {
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fprintf(fp, "\\\n\t:im=");
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list_ipaddresses(fp, hp->impress_server);
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fprintf(fp, ":");
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}
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/* NetBSD: swap_server (see below) */
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if (hp->flags.iaddr) {
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fprintf(fp, "\\\n\t:ip=%s:", inet_ntoa(hp->iaddr));
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}
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if (hp->flags.log_server) {
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fprintf(fp, "\\\n\t:lg=");
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list_ipaddresses(fp, hp->log_server);
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fprintf(fp, ":");
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}
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if (hp->flags.lpr_server) {
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fprintf(fp, "\\\n\t:lp=");
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list_ipaddresses(fp, hp->lpr_server);
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fprintf(fp, ":");
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}
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if (hp->flags.msg_size) {
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fprintf(fp, "\\\n\t:ms=%d:", hp->msg_size);
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}
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if (hp->flags.min_wait) {
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fprintf(fp, "\\\n\t:mw=%d:", hp->min_wait);
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}
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if (hp->flags.name_server) {
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fprintf(fp, "\\\n\t:ns=");
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list_ipaddresses(fp, hp->name_server);
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fprintf(fp, ":");
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}
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if (hp->flags.ntp_server) {
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fprintf(fp, "\\\n\t:nt=");
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list_ipaddresses(fp, hp->ntp_server);
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fprintf(fp, ":");
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}
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if (hp->flags.reply_addr) {
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fprintf(fp, "\\\n\t:ra=%s:", inet_ntoa(hp->reply_addr));
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}
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if (hp->flags.rlp_server) {
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fprintf(fp, "\\\n\t:rl=");
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list_ipaddresses(fp, hp->rlp_server);
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fprintf(fp, ":");
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}
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if (hp->flags.root_path) {
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fprintf(fp, "\\\n\t:rp=%s:", hp->root_path->string);
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}
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if (hp->flags.bootserver) {
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fprintf(fp, "\\\n\t:sa=%s:", inet_ntoa(hp->bootserver));
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}
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if (hp->flags.subnet_mask) {
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fprintf(fp, "\\\n\t:sm=%s:", inet_ntoa(hp->subnet_mask));
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}
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if (hp->flags.swap_server) {
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fprintf(fp, "\\\n\t:sw=%s:", inet_ntoa(hp->subnet_mask));
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}
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if (hp->flags.tftpdir) {
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fprintf(fp, "\\\n\t:td=%s:", hp->tftpdir->string);
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}
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/* NetBSD: rootpath (see above) */
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/* NetBSD: domainname (see above) */
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/* NetBSD: dumpfile (see above) */
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if (hp->flags.time_offset) {
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fprintf(fp, "\\\n\t:to=%ld:", hp->time_offset);
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}
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if (hp->flags.time_server) {
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fprintf(fp, "\\\n\t:ts=");
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list_ipaddresses(fp, hp->time_server);
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fprintf(fp, ":");
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}
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if (hp->flags.vm_cookie) {
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fprintf(fp, "\\\n\t:vm=");
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if (!bcmp(hp->vm_cookie, vm_rfc1048, 4)) {
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fprintf(fp, "rfc1048:");
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} else if (!bcmp(hp->vm_cookie, vm_cmu, 4)) {
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fprintf(fp, "cmu:");
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} else {
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fprintf(fp, "%d.%d.%d.%d:",
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(int) ((hp->vm_cookie)[0]),
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(int) ((hp->vm_cookie)[1]),
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(int) ((hp->vm_cookie)[2]),
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(int) ((hp->vm_cookie)[3]));
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}
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}
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if (hp->flags.nis_domain) {
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fprintf(fp, "\\\n\t:yd=%s:",
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hp->nis_domain->string);
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}
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if (hp->flags.nis_server) {
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fprintf(fp, "\\\n\t:ys=");
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list_ipaddresses(fp, hp->nis_server);
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fprintf(fp, ":");
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}
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/*
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* XXX - Add new tags here (or above,
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* so they print in alphabetical order).
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*/
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if (hp->flags.generic) {
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dump_generic(fp, hp->generic);
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}
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}
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}
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static void
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dump_generic(fp, generic)
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FILE *fp;
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struct shared_bindata *generic;
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{
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u_char *bp = generic->data;
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u_char *ep = bp + generic->length;
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u_char tag;
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int len;
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while (bp < ep) {
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tag = *bp++;
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if (tag == TAG_PAD)
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continue;
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if (tag == TAG_END)
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return;
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len = *bp++;
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if (bp + len > ep) {
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fprintf(fp, " #junk in generic! :");
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return;
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}
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fprintf(fp, "\\\n\t:T%d=", tag);
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while (len) {
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fprintf(fp, "%02X", *bp);
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bp++;
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len--;
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if (len)
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fprintf(fp, ".");
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}
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fprintf(fp, ":");
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}
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}
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/*
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* Dump an entire struct in_addr_list of IP addresses to the indicated file.
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*
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* The addresses are printed in standard ASCII "dot" notation and separated
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* from one another by a single space. A single leading space is also
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* printed before the first adddress.
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*
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* Null lists produce no output (and no error).
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*/
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static void
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list_ipaddresses(fp, ipptr)
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FILE *fp;
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struct in_addr_list *ipptr;
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{
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unsigned count;
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struct in_addr *addrptr;
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if (ipptr) {
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count = ipptr->addrcount;
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addrptr = ipptr->addr;
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while (count > 0) {
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fprintf(fp, "%s", inet_ntoa(*addrptr++));
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count--;
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if (count)
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fprintf(fp, ", ");
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}
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}
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}
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#endif /* DEBUG */
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/*
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* Local Variables:
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* tab-width: 4
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* c-indent-level: 4
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* c-argdecl-indent: 4
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* c-continued-statement-offset: 4
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* c-continued-brace-offset: -4
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* c-label-offset: -4
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* c-brace-offset: 0
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* End:
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*/
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