diff options
Diffstat (limited to 'programs/lwdnsq/cmds.c')
| -rw-r--r-- | programs/lwdnsq/cmds.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/programs/lwdnsq/cmds.c b/programs/lwdnsq/cmds.c new file mode 100644 index 000000000..1b15202ff --- /dev/null +++ b/programs/lwdnsq/cmds.c @@ -0,0 +1,351 @@ +/* + * DNS KEY lookup helper - command implementation + * Copyright (C) 2002 Michael Richardson <mcr@freeswan.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#include <freeswan.h> + +#include <errno.h> +#include <arpa/nameser.h> +#include <lwres/netdb.h> +#include <time.h> + +#include <isc/lang.h> +#include <isc/magic.h> +#include <isc/types.h> +#include <isc/result.h> +#include <isc/mem.h> +#include <isc/buffer.h> +#include <isc/region.h> +#include <dns/name.h> +#include <dns/rdata.h> +#include <dns/rdatastruct.h> +#include <lwres/netdb.h> +#include <lwres/async.h> + + +#include "lwdnsq.h" + +static void cmd_not_implemented(dnskey_glob *gs, const char *what) +{ + fprintf(gs->cmdproto_out, "0 FATAL unimplemented command \"%s\"\n", what); +} + +void output_transaction_line(dnskey_glob *gs, + char *id, + int ttl, + char *cmd, + char *data) +{ + time_t t; + + t=time(NULL); + + /* regularlize time for regression testing */ + if(gs->regress) { + t=3145915; + } + + if(data) { + fprintf(gs->cmdproto_out, + "%s %ld %d %s %s\n", + id, t, ttl, cmd, data); + } else { + fprintf(gs->cmdproto_out, + "%s %ld %d %s\n", + id, t, ttl, cmd); + } + +} + +void output_transaction_line_limited(dnskey_glob *gs, + char *id, + int ttl, + char *cmd, + int max, + char *data) +{ + time_t t; + + t=time(NULL); + + /* regularlize time for regression testing */ + if(gs->regress) { + t=3145915; + } + + fprintf(gs->cmdproto_out, + "%s %ld %d %s %.*s\n", + id, t, ttl, cmd, max, data); +} + + +#if 0 +again: + + lwres_getrrsetbyname_xmit(ctx, &las); + timeout.tv_sec = lwres_async_timeout(ctx); + sock = lwres_async_fd(ctx); + + FD_ZERO(&readfds); + FD_SET(sock, &readfds); + ret2 = select(sock + 1, &readfds, NULL, NULL, &timeout); + + /* + * What happened with select? + */ + if (ret2 < 0) { + success = LWRES_R_IOERROR; + goto out3; + } + if (ret2 == 0) { + success = LWRES_R_TIMEOUT; + goto out3; + } + + out: + if (ctx != NULL) + lwres_context_destroy(&ctx); + + out2: + +#endif + + +void lookup_key(dnskey_glob *gs, + int argc, + char **argv) +{ + char *id; + char *fqdn; + char simplebuf[80]; + + /* process arguments */ + /* KEY 31459 east.uml.freeswan.org */ + if(argc!=3) { + snprintf(simplebuf, sizeof(simplebuf), "wrong number of arguments %d", argc); + output_transaction_line(gs, "0", 0, "FATAL", simplebuf); + return; + } + + id=argv[1]; + fqdn=argv[2]; + + lookup_thing(gs, dns_rdatatype_key, "KEY", id, fqdn); +} + +void lookup_key4(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "key4"); +} + +void lookup_key6(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "key6"); +} + + +void lookup_txt(dnskey_glob *gs, + int argc, + char **argv) +{ + char *id; + char *fqdn; + char simplebuf[80]; + + /* process arguments */ + /* KEY 31459 east.uml.freeswan.org */ + if(argc != 3) { + snprintf(simplebuf, sizeof(simplebuf), "wrong number of arguments to TXT: %d", argc); + output_transaction_line(gs, "0", 0, "FATAL", simplebuf); + return; + } + + id=argv[1]; + fqdn=argv[2]; + + lookup_thing(gs, dns_rdatatype_txt, "TXT", id, fqdn); +} + +void lookup_txt4(dnskey_glob *gs, + int argc, + char **argv) +{ + char *id; + char *ipv4; + struct in_addr in4; + char simplebuf[80]; + + /* process arguments */ + /* KEY 31459 east.uml.freeswan.org */ + if(argc != 3) { + snprintf(simplebuf, sizeof(simplebuf), "wrong number of arguments to TXT: %d", argc); + output_transaction_line(gs, "0", 0, "FATAL", simplebuf); + return; + } + + id=argv[1]; + ipv4=argv[2]; + + if(inet_pton(AF_INET, ipv4, &in4) <= 0) { + snprintf(simplebuf, sizeof(simplebuf), "invalid IPv4 address: %s", ipv4); + output_transaction_line(gs, "0", 0, "FATAL", simplebuf); + return; + } + + snprintf(simplebuf, 80, "%d.%d.%d.%d.in-addr.arpa", + in4.s_addr & 0xff, + (in4.s_addr & 0xff00) >> 8, + (in4.s_addr & 0xff0000) >> 16, + (in4.s_addr & 0xff000000) >> 24); + + lookup_thing(gs, dns_rdatatype_txt, "TXT4", id, simplebuf); +} + +void lookup_txt6(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "txt6"); +} + +void lookup_ipseckey(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "ipseckey"); +} + +void lookup_ipseckey4(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "ipseckey4"); +} + +void lookup_ipseckey6(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "ipseckey6"); +} + +void lookup_oe4(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "oe4"); +} + +void lookup_oe6(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "oe6"); +} + +void lookup_a(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "a"); +} + +void lookup_aaaa(dnskey_glob *gs, + int argc, + char **argv) +{ + cmd_not_implemented(gs, "aaaa"); +} + + + + + + +/* + * $Log: cmds.c,v $ + * Revision 1.1 2004/03/15 20:35:28 as + * added files from freeswan-2.04-x509-1.5.3 + * + * Revision 1.11 2003/09/03 01:13:24 mcr + * first attempt at async capable lwdnsq. + * + * Revision 1.10 2003/05/22 16:33:51 mcr + * added trailing . to CNAME return and cleaned up "CNAMEFROM" output. + * + * Revision 1.9 2003/05/14 15:47:39 mcr + * processing of IP address into pieces was not done with + * the right order of operations. + * + * Revision 1.8 2003/02/27 09:27:17 mcr + * adjusted lwdnsq so that it adheres to contract - TXT records + * are returned in a single piece. Requires custom decoding. + * implemented "txt4" lookup type. + * + * Revision 1.7 2003/01/14 07:53:29 dhr + * + * - attempt to diagnose lack of lwdnsq + * - increase too-small buffer size + * + * Revision 1.6 2003/01/14 03:01:14 dhr + * + * improve diagnostics; tidy + * + * Revision 1.5 2002/12/12 06:03:41 mcr + * added --regress option to force times to be regular + * + * Revision 1.4 2002/11/25 18:37:28 mcr + * added AD- marking of each record that was DNSSEC verified. + * + * Revision 1.3 2002/11/16 02:53:53 mcr + * lwdnsq - with new contract added. + * + * Revision 1.2 2002/11/12 04:33:44 mcr + * print DNSSEC status as we process CNAMEs. + * + * Revision 1.1 2002/10/30 02:25:31 mcr + * renamed version of files from dnskey/ + * + * Revision 1.4 2002/10/18 23:11:02 mcr + * if we get ENOENT, then see if we can get a CNAME. If so, then + * follow it. + * Be careful when following them to avoid recursion. + * + * Revision 1.3 2002/10/18 04:08:47 mcr + * use -ldns routines to decode lwres results and format them nicely. + * + * Revision 1.2 2002/10/09 20:13:34 mcr + * first set of real code - lookup KEY records in forward. + * + * Revision 1.1 2002/09/30 18:55:54 mcr + * skeleton for dnskey helper program. + * + * Revision 1.1 2002/09/30 16:50:23 mcr + * documentation for "dnskey" helper + * + * Local variables: + * c-file-style: "linux" + * c-basic-offset: 2 + * End: + * + */ |