+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * SPDX-License-Identifier: MPL-2.0
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, you can obtain one at https://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <isc/attributes.h>
-#include <isc/base64.h>
-#include <isc/buffer.h>
-#include <isc/commandline.h>
-#include <isc/loop.h>
-#include <isc/managers.h>
-#include <isc/mem.h>
-#include <isc/netmgr.h>
-#include <isc/print.h>
-#include <isc/result.h>
-#include <isc/sockaddr.h>
-#include <isc/task.h>
-#include <isc/timer.h>
-#include <isc/util.h>
-
-#include <dns/client.h>
-#include <dns/fixedname.h>
-#include <dns/keyvalues.h>
-#include <dns/name.h>
-#include <dns/rdata.h>
-#include <dns/rdataset.h>
-#include <dns/rdatastruct.h>
-#include <dns/rdatatype.h>
-#include <dns/secalg.h>
-
-#include <dst/dst.h>
-
-#include <irs/resconf.h>
-
-/*
- * Global contexts
- */
-
-isc_mem_t *ctxs_mctx = NULL;
-isc_loopmgr_t *ctxs_loopmgr = NULL;
-isc_nm_t *ctxs_netmgr = NULL;
-isc_taskmgr_t *ctxs_taskmgr = NULL;
-
-static char *algname = NULL;
-
-static isc_result_t
-printdata(dns_rdataset_t *rdataset, dns_name_t *owner) {
- isc_buffer_t target;
- isc_result_t result;
- isc_region_t r;
- char t[4096];
-
- if (!dns_rdataset_isassociated(rdataset)) {
- printf("[WARN: empty]\n");
- return (ISC_R_SUCCESS);
- }
-
- isc_buffer_init(&target, t, sizeof(t));
-
- result = dns_rdataset_totext(rdataset, owner, false, false, &target);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
- isc_buffer_usedregion(&target, &r);
- printf("%.*s", (int)r.length, (char *)r.base);
-
- return (ISC_R_SUCCESS);
-}
-
-noreturn static void
-usage(void);
-
-static void
-usage(void) {
- fprintf(stderr, "resolve [-t RRtype] "
- "[[-a algorithm] [-e] -k keyname -K keystring] "
- "[-S domain:serveraddr_for_domain ] [-s server_address]"
- "[-b address[#port]] hostname\n");
-
- exit(1);
-}
-
-static void
-set_key(dns_client_t *client, char *keynamestr, char *keystr, bool is_sep) {
- isc_result_t result;
- dns_fixedname_t fkeyname;
- unsigned int namelen;
- dns_name_t *keyname;
- dns_rdata_dnskey_t keystruct;
- unsigned char keydata[4096];
- isc_buffer_t keydatabuf;
- unsigned char rrdata[4096];
- isc_buffer_t rrdatabuf;
- isc_buffer_t b;
- isc_textregion_t tr;
- isc_region_t r;
- dns_secalg_t alg;
-
- if (algname != NULL) {
- tr.base = algname;
- tr.length = strlen(algname);
- result = dns_secalg_fromtext(&alg, &tr);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "failed to identify the algorithm\n");
- exit(1);
- }
- } else {
- alg = DNS_KEYALG_RSASHA1;
- }
-
- keystruct.common.rdclass = dns_rdataclass_in;
- keystruct.common.rdtype = dns_rdatatype_dnskey;
- keystruct.flags = DNS_KEYOWNER_ZONE; /* fixed */
- if (is_sep) {
- keystruct.flags |= DNS_KEYFLAG_KSK;
- }
- keystruct.protocol = DNS_KEYPROTO_DNSSEC; /* fixed */
- keystruct.algorithm = alg;
-
- isc_buffer_init(&keydatabuf, keydata, sizeof(keydata));
- isc_buffer_init(&rrdatabuf, rrdata, sizeof(rrdata));
- result = isc_base64_decodestring(keystr, &keydatabuf);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "base64 decode failed\n");
- exit(1);
- }
- isc_buffer_usedregion(&keydatabuf, &r);
- keystruct.datalen = r.length;
- keystruct.data = r.base;
-
- result = dns_rdata_fromstruct(NULL, keystruct.common.rdclass,
- keystruct.common.rdtype, &keystruct,
- &rrdatabuf);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "failed to construct key rdata\n");
- exit(1);
- }
- namelen = strlen(keynamestr);
- isc_buffer_init(&b, keynamestr, namelen);
- isc_buffer_add(&b, namelen);
- keyname = dns_fixedname_initname(&fkeyname);
- result = dns_name_fromtext(keyname, &b, dns_rootname, 0, NULL);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "failed to construct key name\n");
- exit(1);
- }
- result = dns_client_addtrustedkey(client, dns_rdataclass_in,
- dns_rdatatype_dnskey, keyname,
- &rrdatabuf);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "failed to add key for %s\n", keynamestr);
- exit(1);
- }
-}
-
-static void
-addserver(dns_client_t *client, const char *addrstr, const char *port,
- const char *name_space) {
- struct addrinfo hints, *res;
- int gaierror;
- isc_sockaddr_t sa;
- isc_sockaddrlist_t servers;
- isc_result_t result;
- isc_buffer_t b;
- dns_fixedname_t fname;
- dns_name_t *name = NULL;
-
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = SOCK_DGRAM;
- hints.ai_protocol = IPPROTO_UDP;
- hints.ai_flags = AI_NUMERICHOST;
- gaierror = getaddrinfo(addrstr, port, &hints, &res);
- if (gaierror != 0) {
- fprintf(stderr, "getaddrinfo failed: %s\n",
- gai_strerror(gaierror));
- exit(1);
- }
- INSIST(res->ai_addrlen <= sizeof(sa.type));
- memmove(&sa.type, res->ai_addr, res->ai_addrlen);
- sa.length = (unsigned int)res->ai_addrlen;
- freeaddrinfo(res);
- ISC_LINK_INIT(&sa, link);
- ISC_LIST_INIT(servers);
- ISC_LIST_APPEND(servers, &sa, link);
-
- if (name_space != NULL) {
- unsigned int namelen = strlen(name_space);
- isc_buffer_constinit(&b, name_space, namelen);
- isc_buffer_add(&b, namelen);
- name = dns_fixedname_initname(&fname);
- result = dns_name_fromtext(name, &b, dns_rootname, 0, NULL);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "failed to convert qname: %u\n",
- (unsigned int)result);
- exit(1);
- }
- }
-
- result = dns_client_setservers(client, dns_rdataclass_in, name,
- &servers);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "set server failed: %u\n",
- (unsigned int)result);
- exit(1);
- }
-}
-
-static dns_name_t *qname = NULL;
-static unsigned int resopt = 0;
-static dns_rdatatype_t type = dns_rdatatype_a;
-
-static void
-resolve_cb(dns_client_t *client, const dns_name_t *query_name,
- dns_namelist_t *namelist, isc_result_t result) {
- UNUSED(query_name);
-
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "resolution failed: %s\n",
- isc_result_totext(result));
- goto cleanup;
- }
-
- for (dns_name_t *name = ISC_LIST_HEAD(*namelist); name != NULL;
- name = ISC_LIST_NEXT(name, link))
- {
- for (dns_rdataset_t *rdataset = ISC_LIST_HEAD(name->list);
- rdataset != NULL; rdataset = ISC_LIST_NEXT(rdataset, link))
- {
- if (printdata(rdataset, name) != ISC_R_SUCCESS) {
- fprintf(stderr, "print data failed\n");
- }
- }
- }
-
-cleanup:
- dns_client_freeresanswer(client, namelist);
-
- dns_client_detach(&client);
-
- isc_mem_put(ctxs_mctx, namelist, sizeof(*namelist));
-
- isc_loopmgr_shutdown(ctxs_loopmgr);
-}
-
-static void
-resolve(void *arg) {
- dns_client_t *client = (void *)arg;
- dns_namelist_t *namelist = isc_mem_get(ctxs_mctx, sizeof(*namelist));
- isc_result_t result;
-
- ISC_LIST_INIT(*namelist);
- result = dns_client_resolve(client, qname, dns_rdataclass_in, type,
- resopt, namelist, resolve_cb);
-
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "resolution failed: %s\n",
- isc_result_totext(result));
- isc_mem_put(ctxs_mctx, namelist, sizeof(*namelist));
- isc_loopmgr_shutdown(ctxs_loopmgr);
- }
-}
-
-int
-main(int argc, char *argv[]) {
- int ch;
- isc_textregion_t tr;
- char *server = NULL;
- char *altserver = NULL;
- char *altserveraddr = NULL;
- char *altservername = NULL;
- dns_client_t *client = NULL;
- char *keynamestr = NULL;
- char *keystr = NULL;
- isc_result_t result;
- isc_buffer_t b;
- dns_fixedname_t qname0;
- unsigned int namelen;
- unsigned int clientopt;
- bool is_sep = false;
- const char *port = "53";
- struct in_addr in4;
- struct in6_addr in6;
- isc_sockaddr_t a4, a6;
- isc_sockaddr_t *addr4 = NULL, *addr6 = NULL;
-
- while ((ch = isc_commandline_parse(argc, argv, "a:b:es:t:k:K:p:S:")) !=
- -1) {
- switch (ch) {
- case 't':
- tr.base = isc_commandline_argument;
- tr.length = strlen(isc_commandline_argument);
- result = dns_rdatatype_fromtext(&type, &tr);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "invalid RRtype: %s\n",
- isc_commandline_argument);
- exit(1);
- }
- break;
- case 'a':
- algname = isc_commandline_argument;
- break;
- case 'b':
- if (inet_pton(AF_INET, isc_commandline_argument,
- &in4) == 1) {
- if (addr4 != NULL) {
- fprintf(stderr, "only one local "
- "address per family "
- "can be specified\n");
- exit(1);
- }
- isc_sockaddr_fromin(&a4, &in4, 0);
- addr4 = &a4;
- } else if (inet_pton(AF_INET6, isc_commandline_argument,
- &in6) == 1) {
- if (addr6 != NULL) {
- fprintf(stderr, "only one local "
- "address per family "
- "can be specified\n");
- exit(1);
- }
- isc_sockaddr_fromin6(&a6, &in6, 0);
- addr6 = &a6;
- } else {
- fprintf(stderr, "invalid address %s\n",
- isc_commandline_argument);
- exit(1);
- }
- break;
- case 'e':
- is_sep = true;
- break;
- case 'S':
- if (altserver != NULL) {
- fprintf(stderr,
- "alternate server "
- "already defined: %s\n",
- altserver);
- exit(1);
- }
- altserver = isc_commandline_argument;
- break;
- case 's':
- if (server != NULL) {
- fprintf(stderr,
- "server "
- "already defined: %s\n",
- server);
- exit(1);
- }
- server = isc_commandline_argument;
- break;
- case 'k':
- keynamestr = isc_commandline_argument;
- break;
- case 'K':
- keystr = isc_commandline_argument;
- break;
- case 'p':
- port = isc_commandline_argument;
- break;
- default:
- usage();
- }
- }
-
- argc -= isc_commandline_index;
- argv += isc_commandline_index;
- if (argc < 1) {
- usage();
- }
-
- if (altserver != NULL) {
- char *cp;
-
- cp = strchr(altserver, ':');
- if (cp == NULL) {
- fprintf(stderr, "invalid alternate server: %s\n",
- altserver);
- exit(1);
- }
- *cp = '\0';
- altservername = altserver;
- altserveraddr = cp + 1;
- }
-
- isc_managers_create(&ctxs_mctx, 1, &ctxs_loopmgr, &ctxs_netmgr,
- &ctxs_taskmgr);
-
- result = dst_lib_init(ctxs_mctx, NULL);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "dst_lib_init failed: %u\n",
- (unsigned int)result);
- exit(1);
- }
-
- clientopt = 0;
- result = dns_client_create(ctxs_mctx, ctxs_loopmgr, ctxs_taskmgr,
- ctxs_netmgr, clientopt, &client, addr4,
- addr6);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "dns_client_create failed: %u, %s\n",
- (unsigned int)result, isc_result_totext(result));
- exit(1);
- }
-
- /* Set the nameserver */
- if (server == NULL) {
- irs_resconf_t *resconf = NULL;
- isc_sockaddrlist_t *nameservers;
-
- result = irs_resconf_load(ctxs_mctx, "/etc/resolv.conf",
- &resconf);
- if (result != ISC_R_SUCCESS && result != ISC_R_FILENOTFOUND) {
- fprintf(stderr, "irs_resconf_load failed: %u\n",
- (unsigned int)result);
- exit(1);
- }
- nameservers = irs_resconf_getnameservers(resconf);
- result = dns_client_setservers(client, dns_rdataclass_in, NULL,
- nameservers);
- if (result != ISC_R_SUCCESS) {
- irs_resconf_destroy(&resconf);
- fprintf(stderr, "dns_client_setservers failed: %u\n",
- (unsigned int)result);
- exit(1);
- }
- irs_resconf_destroy(&resconf);
- } else {
- addserver(client, server, port, NULL);
- }
-
- /* Set the alternate nameserver (when specified) */
- if (altserver != NULL) {
- addserver(client, altserveraddr, port, altservername);
- }
-
- /* Install DNSSEC key (if given) */
- if (keynamestr != NULL) {
- if (keystr == NULL) {
- fprintf(stderr, "key string is missing "
- "while key name is provided\n");
- exit(1);
- }
- set_key(client, keynamestr, keystr, is_sep);
- }
-
- /* Construct qname */
- namelen = strlen(argv[0]);
- isc_buffer_init(&b, argv[0], namelen);
- isc_buffer_add(&b, namelen);
- qname = dns_fixedname_initname(&qname0);
- result = dns_name_fromtext(qname, &b, dns_rootname, 0, NULL);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "failed to convert qname: %u\n",
- (unsigned int)result);
- exit(1);
- }
-
- /* Perform resolution */
- if (keynamestr == NULL) {
- resopt |= DNS_CLIENTRESOPT_NODNSSEC;
- }
-
- isc_loopmgr_setup(ctxs_loopmgr, resolve, client);
-
- isc_loopmgr_run(ctxs_loopmgr);
-
- dst_lib_destroy();
-
- isc_managers_destroy(&ctxs_mctx, &ctxs_loopmgr, &ctxs_netmgr,
- &ctxs_taskmgr);
-
- return (0);
-}
"${DIG}" -p "${PORT}" "${@}"
}
-resolve_with_opts() {
- "${RESOLVE}" -p "${PORT}" "${@}"
-}
-
rndccmd() {
"${RNDC}" -c ../common/rndc.conf -p "${CONTROLPORT}" -s "${@}"
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking non-cachable NXDOMAIN response handling using dns_client ($n)"
- ret=0
- resolve_with_opts -t a -s 10.53.0.1 nxdomain.example.net 2> resolve.out.ns1.test${n} || ret=1
- grep "resolution failed: ncache nxdomain" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking that local bound address can be set (Can't query from a denied address) ($n)"
- ret=0
- resolve_with_opts -b 10.53.0.8 -t a -s 10.53.0.1 www.example.org 2> resolve.out.ns1.test${n} || ret=1
- grep "resolution failed: SERVFAIL" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-
- n=$((n+1))
- echo_i "checking that local bound address can be set (Can query from an allowed address) ($n)"
- ret=0
- resolve_with_opts -b 10.53.0.1 -t a -s 10.53.0.1 www.example.org > resolve.out.ns1.test${n} || ret=1
- grep "www.example.org..*.192.0.2.1" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
n=$((n+1))
echo_i "checking non-cachable NODATA response handling ($n)"
ret=0
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking non-cachable NODATA response handling using dns_client ($n)"
- ret=0
- resolve_with_opts -t a -s 10.53.0.1 nodata.example.net 2> resolve.out.ns1.test${n} || ret=1
- grep "resolution failed: ncache nxrrset" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
n=$((n+1))
echo_i "checking handling of bogus referrals ($n)"
# If the server has the "INSIST(!external)" bug, this query will kill it.
dig_with_opts +tcp www.example.com. a @10.53.0.1 >/dev/null || { echo_i "failed"; status=$((status + 1)); }
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking handling of bogus referrals using dns_client ($n)"
- ret=0
- resolve_with_opts -t a -s 10.53.0.1 www.example.com 2> resolve.out.ns1.test${n} || ret=1
- grep "resolution failed: SERVFAIL" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
n=$((n+1))
echo_i "check handling of cname + other data / 1 ($n)"
dig_with_opts +tcp cname1.example.com. a @10.53.0.1 >/dev/null || { echo_i "failed"; status=$((status + 1)); }
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
-
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking answer IPv4 address filtering using dns_client (accept) ($n)"
- ret=0
- resolve_with_opts -t a -s 10.53.0.1 www.example.org > resolve.out.ns1.test${n} || ret=1
- grep "www.example.org..*.192.0.2.1" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
n=$((n+1))
echo_i "checking answer IPv6 address filtering (accept) ($n)"
ret=0
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking answer IPv6 address filtering using dns_client (accept) ($n)"
- ret=0
- resolve_with_opts -t aaaa -s 10.53.0.1 www.example.org > resolve.out.ns1.test${n} || ret=1
- grep "www.example.org..*.2001:db8:beef::1" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
n=$((n+1))
echo_i "checking CNAME target filtering (deny) ($n)"
ret=0
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking CNAME target filtering using dns_client (accept) ($n)"
- ret=0
- resolve_with_opts -t a -s 10.53.0.1 goodcname.example.net > resolve.out.ns1.test${n} || ret=1
- grep "goodcname.example.net..*.goodcname.example.org." resolve.out.ns1.test${n} > /dev/null || ret=1
- grep "goodcname.example.org..*.192.0.2.1" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
-n=$((n+1))
-echo_i "checking CNAME target filtering (accept due to subdomain) ($n)"
-ret=0
-dig_with_opts +tcp cname.sub.example.org @10.53.0.1 a > dig.out.ns1.test${n} || ret=1
-grep "status: NOERROR" dig.out.ns1.test${n} > /dev/null || ret=1
-if [ $ret != 0 ]; then echo_i "failed"; fi
-status=$((status + ret))
-
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking CNAME target filtering using dns_client (accept due to subdomain) ($n)"
- ret=0
- resolve_with_opts -t a -s 10.53.0.1 cname.sub.example.org > resolve.out.ns1.test${n} || ret=1
- grep "cname.sub.example.org..*.ok.sub.example.org." resolve.out.ns1.test${n} > /dev/null || ret=1
- grep "ok.sub.example.org..*.192.0.2.1" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
n=$((n+1))
echo_i "checking DNAME target filtering (deny) ($n)"
ret=0
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking DNAME target filtering using dns_client (accept) ($n)"
- ret=0
- resolve_with_opts -t a -s 10.53.0.1 foo.gooddname.example.net > resolve.out.ns1.test${n} || ret=1
- grep "foo.gooddname.example.net..*.gooddname.example.org" resolve.out.ns1.test${n} > /dev/null || ret=1
- grep "foo.gooddname.example.org..*.192.0.2.1" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
n=$((n+1))
echo_i "checking DNAME target filtering (accept due to subdomain) ($n)"
ret=0
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
-if [ -x ${RESOLVE} ] ; then
- n=$((n+1))
- echo_i "checking DNAME target filtering using dns_client (accept due to subdomain) ($n)"
- ret=0
- resolve_with_opts -t a -s 10.53.0.1 www.dname.sub.example.org > resolve.out.ns1.test${n} || ret=1
- grep "www.dname.sub.example.org..*.ok.sub.example.org." resolve.out.ns1.test${n} > /dev/null || ret=1
- grep "www.ok.sub.example.org..*.192.0.2.1" resolve.out.ns1.test${n} > /dev/null || ret=1
- if [ $ret != 0 ]; then echo_i "failed"; fi
- status=$((status + ret))
-fi
-
n=$((n+1))
echo_i "check that the resolver accepts a referral response with a non-empty ANSWER section ($n)"
ret=0
projects / thirdparty / bind9.git / commitdiff
