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-rw-r--r--bin/named/config.c1034
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diff --git a/bin/named/config.c b/bin/named/config.c
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index 0000000..7f318a2
--- /dev/null
+++ b/bin/named/config.c
@@ -0,0 +1,1034 @@
+/*
+ * 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.
+ */
+
+/*! \file */
+
+#include <bind.keys.h>
+#include <inttypes.h>
+#include <stdlib.h>
+
+#include <isc/buffer.h>
+#include <isc/log.h>
+#include <isc/mem.h>
+#include <isc/netmgr.h>
+#include <isc/parseint.h>
+#include <isc/region.h>
+#include <isc/result.h>
+#include <isc/sockaddr.h>
+#include <isc/string.h>
+#include <isc/util.h>
+
+#include <dns/fixedname.h>
+#include <dns/kasp.h>
+#include <dns/name.h>
+#include <dns/rdataclass.h>
+#include <dns/rdatatype.h>
+#include <dns/tsig.h>
+#include <dns/zone.h>
+
+#include <dst/dst.h>
+
+#include <isccfg/grammar.h>
+#include <isccfg/namedconf.h>
+
+#include <named/config.h>
+#include <named/globals.h>
+
+/*% default configuration */
+static char defaultconf[] = "\
+options {\n\
+ answer-cookie true;\n\
+ automatic-interface-scan yes;\n\
+ bindkeys-file \"" NAMED_SYSCONFDIR "/bind.keys\";\n\
+# blackhole {none;};\n"
+ " cookie-algorithm siphash24;\n"
+ " coresize default;\n\
+ datasize default;\n"
+ "\
+# directory <none>\n\
+ dnssec-policy \"none\";\n\
+ dump-file \"named_dump.db\";\n\
+ edns-udp-size 1232;\n\
+ files unlimited;\n"
+#if defined(HAVE_GEOIP2)
+ "\
+ geoip-directory \"" MAXMINDDB_PREFIX "/share/GeoIP\";\n"
+#elif defined(HAVE_GEOIP2)
+ "\
+ geoip-directory \".\";\n"
+#endif /* if defined(HAVE_GEOIP2) */
+ "\
+ heartbeat-interval 60;\n\
+ interface-interval 60;\n\
+# keep-response-order {none;};\n\
+ listen-on {any;};\n\
+ listen-on-v6 {any;};\n\
+# lock-file \"" NAMED_LOCALSTATEDIR "/run/named/named.lock\";\n\
+ match-mapped-addresses no;\n\
+ max-ixfr-ratio 100%;\n\
+ max-rsa-exponent-size 0; /* no limit */\n\
+ max-udp-size 1232;\n\
+ memstatistics-file \"named.memstats\";\n\
+ nocookie-udp-size 4096;\n\
+ notify-rate 20;\n\
+ nta-lifetime 3600;\n\
+ nta-recheck 300;\n\
+# pid-file \"" NAMED_LOCALSTATEDIR "/run/named/named.pid\"; \n\
+ port 53;\n"
+#if HAVE_SO_REUSEPORT_LB
+ "\
+ reuseport yes;\n"
+#else
+ "\
+ reuseport no;\n"
+#endif
+ "\
+ tls-port 853;\n"
+#if HAVE_LIBNGHTTP2
+ "\
+ http-port 80;\n\
+ https-port 443;\n\
+ http-listener-clients 300;\n\
+ http-streams-per-connection 100;\n"
+#endif
+ "\
+ prefetch 2 9;\n\
+ recursing-file \"named.recursing\";\n\
+ recursive-clients 1000;\n\
+ request-nsid false;\n\
+ reserved-sockets 512;\n\
+ resolver-query-timeout 10;\n\
+ rrset-order { order random; };\n\
+ secroots-file \"named.secroots\";\n\
+ send-cookie true;\n\
+ serial-query-rate 20;\n\
+ server-id none;\n\
+ session-keyalg hmac-sha256;\n\
+# session-keyfile \"" NAMED_LOCALSTATEDIR "/run/named/session.key\";\n\
+ session-keyname local-ddns;\n\
+ stacksize default;\n\
+ startup-notify-rate 20;\n\
+ statistics-file \"named.stats\";\n\
+ tcp-advertised-timeout 300;\n\
+ tcp-clients 150;\n\
+ tcp-idle-timeout 300;\n\
+ tcp-initial-timeout 300;\n\
+ tcp-keepalive-timeout 300;\n\
+ tcp-listen-queue 10;\n\
+ tcp-receive-buffer 0;\n\
+ tcp-send-buffer 0;\n\
+# tkey-dhkey <none>\n\
+# tkey-domain <none>\n\
+# tkey-gssapi-credential <none>\n\
+ transfer-message-size 20480;\n\
+ transfers-in 10;\n\
+ transfers-out 10;\n\
+ transfers-per-ns 2;\n\
+ trust-anchor-telemetry yes;\n\
+ udp-receive-buffer 0;\n\
+ udp-send-buffer 0;\n\
+ update-quota 100;\n\
+\n\
+ /* view */\n\
+ allow-new-zones no;\n\
+ allow-notify {none;};\n\
+ allow-query-cache { localnets; localhost; };\n\
+ allow-query-cache-on { any; };\n\
+ allow-recursion { localnets; localhost; };\n\
+ allow-recursion-on { any; };\n\
+ allow-update-forwarding {none;};\n\
+ auth-nxdomain false;\n\
+ check-dup-records warn;\n\
+ check-mx warn;\n\
+ check-names primary fail;\n\
+ check-names response ignore;\n\
+ check-names secondary warn;\n\
+ check-spf warn;\n\
+ clients-per-query 10;\n\
+ dnssec-accept-expired no;\n\
+ dnssec-validation " VALIDATION_DEFAULT "; \n"
+#ifdef HAVE_DNSTAP
+ " dnstap-identity hostname;\n"
+#endif /* ifdef HAVE_DNSTAP */
+ "\
+ fetch-quota-params 100 0.1 0.3 0.7;\n\
+ fetches-per-server 0;\n\
+ fetches-per-zone 0;\n\
+ glue-cache yes;\n\
+ lame-ttl 0;\n"
+#ifdef HAVE_LMDB
+ " lmdb-mapsize 32M;\n"
+#endif /* ifdef HAVE_LMDB */
+ " max-cache-size 90%;\n\
+ max-cache-ttl 604800; /* 1 week */\n\
+ max-clients-per-query 100;\n\
+ max-ncache-ttl 10800; /* 3 hours */\n\
+ max-recursion-depth 7;\n\
+ max-recursion-queries 100;\n\
+ max-stale-ttl 86400; /* 1 day */\n\
+ message-compression yes;\n\
+ min-ncache-ttl 0; /* 0 hours */\n\
+ min-cache-ttl 0; /* 0 seconds */\n\
+ minimal-any false;\n\
+ minimal-responses no-auth-recursive;\n\
+ notify-source *;\n\
+ notify-source-v6 *;\n\
+ nsec3-test-zone no;\n\
+ parental-source *;\n\
+ parental-source-v6 *;\n\
+ provide-ixfr true;\n\
+ qname-minimization relaxed;\n\
+ query-source address *;\n\
+ query-source-v6 address *;\n\
+ recursion true;\n\
+ request-expire true;\n\
+ request-ixfr true;\n\
+ require-server-cookie no;\n\
+ resolver-nonbackoff-tries 3;\n\
+ resolver-retry-interval 800; /* in milliseconds */\n\
+ root-key-sentinel yes;\n\
+ servfail-ttl 1;\n\
+# sortlist <none>\n\
+ stale-answer-client-timeout off;\n\
+ stale-answer-enable false;\n\
+ stale-answer-ttl 30; /* 30 seconds */\n\
+ stale-cache-enable false;\n\
+ stale-refresh-time 30; /* 30 seconds */\n\
+ synth-from-dnssec yes;\n\
+# topology <none>\n\
+ transfer-format many-answers;\n\
+ v6-bias 50;\n\
+ zero-no-soa-ttl-cache no;\n\
+\n\
+ /* zone */\n\
+ allow-query {any;};\n\
+ allow-query-on {any;};\n\
+ allow-transfer {any;};\n\
+# also-notify <none>\n\
+ alt-transfer-source *;\n\
+ alt-transfer-source-v6 *;\n\
+ check-integrity yes;\n\
+ check-mx-cname warn;\n\
+ check-sibling yes;\n\
+ check-srv-cname warn;\n\
+ check-wildcard yes;\n\
+ dialup no;\n\
+ dnssec-dnskey-kskonly yes;\n\
+ dnssec-loadkeys-interval 60;\n\
+ dnssec-secure-to-insecure no;\n\
+ dnssec-update-mode maintain;\n\
+# forward <none>\n\
+# forwarders <none>\n\
+# inline-signing no;\n\
+ ixfr-from-differences false;\n\
+ max-journal-size default;\n\
+ max-records 0;\n\
+ max-refresh-time 2419200; /* 4 weeks */\n\
+ max-retry-time 1209600; /* 2 weeks */\n\
+ max-transfer-idle-in 60;\n\
+ max-transfer-idle-out 60;\n\
+ max-transfer-time-in 120;\n\
+ max-transfer-time-out 120;\n\
+ min-refresh-time 300;\n\
+ min-retry-time 500;\n\
+ multi-master no;\n\
+ notify yes;\n\
+ notify-delay 5;\n\
+ notify-to-soa no;\n\
+ serial-update-method increment;\n\
+ sig-signing-nodes 100;\n\
+ sig-signing-signatures 10;\n\
+ sig-signing-type 65534;\n\
+ sig-validity-interval 30; /* days */\n\
+ dnskey-sig-validity 0; /* default: sig-validity-interval */\n\
+ transfer-source *;\n\
+ transfer-source-v6 *;\n\
+ try-tcp-refresh yes; /* BIND 8 compat */\n\
+ update-check-ksk yes;\n\
+ zero-no-soa-ttl yes;\n\
+ zone-statistics terse;\n\
+};\n\
+"
+
+ "#\n\
+# Zones in the \"_bind\" view are NOT counted in the count of zones.\n\
+#\n\
+view \"_bind\" chaos {\n\
+ recursion no;\n\
+ notify no;\n\
+ allow-new-zones no;\n\
+ max-cache-size 2M;\n\
+\n\
+ # Prevent use of this zone in DNS amplified reflection DoS attacks\n\
+ rate-limit {\n\
+ responses-per-second 3;\n\
+ slip 0;\n\
+ min-table-size 10;\n\
+ };\n\
+\n\
+ zone \"version.bind\" chaos {\n\
+ type primary;\n\
+ database \"_builtin version\";\n\
+ };\n\
+\n\
+ zone \"hostname.bind\" chaos {\n\
+ type primary;\n\
+ database \"_builtin hostname\";\n\
+ };\n\
+\n\
+ zone \"authors.bind\" chaos {\n\
+ type primary;\n\
+ database \"_builtin authors\";\n\
+ };\n\
+\n\
+ zone \"id.server\" chaos {\n\
+ type primary;\n\
+ database \"_builtin id\";\n\
+ };\n\
+};\n\
+"
+ "#\n\
+# Built-in DNSSEC key and signing policies.\n\
+#\n\
+dnssec-policy \"default\" {\n\
+ keys {\n\
+ csk key-directory lifetime unlimited algorithm 13;\n\
+ };\n\
+\n\
+ dnskey-ttl " DNS_KASP_KEY_TTL ";\n\
+ publish-safety " DNS_KASP_PUBLISH_SAFETY "; \n\
+ retire-safety " DNS_KASP_RETIRE_SAFETY "; \n\
+ purge-keys " DNS_KASP_PURGE_KEYS "; \n\
+ signatures-refresh " DNS_KASP_SIG_REFRESH "; \n\
+ signatures-validity " DNS_KASP_SIG_VALIDITY "; \n\
+ signatures-validity-dnskey " DNS_KASP_SIG_VALIDITY_DNSKEY "; \n\
+ max-zone-ttl " DNS_KASP_ZONE_MAXTTL "; \n\
+ zone-propagation-delay " DNS_KASP_ZONE_PROPDELAY "; \n\
+ parent-ds-ttl " DNS_KASP_DS_TTL "; \n\
+ parent-propagation-delay " DNS_KASP_PARENT_PROPDELAY "; \n\
+};\n\
+\n\
+dnssec-policy \"insecure\" {\n\
+ max-zone-ttl 0; \n\
+ keys { };\n\
+};\n\
+\n\
+"
+ "#\n\
+# Default trusted key(s), used if \n\
+# \"dnssec-validation auto;\" is set and\n\
+# " NAMED_SYSCONFDIR "/bind.keys doesn't exist).\n\
+#\n\
+# BEGIN TRUST ANCHORS\n"
+
+ /* Imported from bind.keys.h: */
+ TRUST_ANCHORS
+
+ "# END TRUST ANCHORS\n\
+\n\
+primaries " DEFAULT_IANA_ROOT_ZONE_PRIMARIES " {\n\
+ 2001:500:200::b; # b.root-servers.net\n\
+ 2001:500:2::c; # c.root-servers.net\n\
+ 2001:500:2f::f; # f.root-servers.net\n\
+ 2001:500:12::d0d; # g.root-servers.net\n\
+ 2001:7fd::1; # k.root-servers.net\n\
+ 2620:0:2830:202::132; # xfr.cjr.dns.icann.org\n\
+ 2620:0:2d0:202::132; # xfr.lax.dns.icann.org\n\
+ 199.9.14.201; # b.root-servers.net\n\
+ 192.33.4.12; # c.root-servers.net\n\
+ 192.5.5.241; # f.root-servers.net\n\
+ 192.112.36.4; # g.root-servers.net\n\
+ 193.0.14.129; # k.root-servers.net\n\
+ 192.0.47.132; # xfr.cjr.dns.icann.org\n\
+ 192.0.32.132; # xfr.lax.dns.icann.org\n\
+};\n\
+";
+
+isc_result_t
+named_config_parsedefaults(cfg_parser_t *parser, cfg_obj_t **conf) {
+ isc_buffer_t b;
+
+ isc_buffer_init(&b, defaultconf, sizeof(defaultconf) - 1);
+ isc_buffer_add(&b, sizeof(defaultconf) - 1);
+ return (cfg_parse_buffer(parser, &b, __FILE__, 0, &cfg_type_namedconf,
+ CFG_PCTX_NODEPRECATED, conf));
+}
+
+const char *
+named_config_getdefault(void) {
+ return (defaultconf);
+}
+
+isc_result_t
+named_config_get(cfg_obj_t const *const *maps, const char *name,
+ const cfg_obj_t **obj) {
+ int i;
+
+ for (i = 0; maps[i] != NULL; i++) {
+ if (cfg_map_get(maps[i], name, obj) == ISC_R_SUCCESS) {
+ return (ISC_R_SUCCESS);
+ }
+ }
+ return (ISC_R_NOTFOUND);
+}
+
+isc_result_t
+named_checknames_get(const cfg_obj_t **maps, const char *const names[],
+ const cfg_obj_t **obj) {
+ const cfg_listelt_t *element;
+ const cfg_obj_t *checknames;
+ const cfg_obj_t *type;
+ const cfg_obj_t *value;
+ int i;
+
+ REQUIRE(maps != NULL);
+ REQUIRE(names != NULL);
+ REQUIRE(obj != NULL && *obj == NULL);
+
+ for (i = 0; maps[i] != NULL; i++) {
+ checknames = NULL;
+ if (cfg_map_get(maps[i], "check-names", &checknames) ==
+ ISC_R_SUCCESS)
+ {
+ /*
+ * Zone map entry is not a list.
+ */
+ if (checknames != NULL && !cfg_obj_islist(checknames)) {
+ *obj = checknames;
+ return (ISC_R_SUCCESS);
+ }
+ for (element = cfg_list_first(checknames);
+ element != NULL; element = cfg_list_next(element))
+ {
+ value = cfg_listelt_value(element);
+ type = cfg_tuple_get(value, "type");
+
+ for (size_t j = 0; names[j] != NULL; j++) {
+ if (strcasecmp(cfg_obj_asstring(type),
+ names[j]) == 0)
+ {
+ *obj = cfg_tuple_get(value,
+ "mode");
+ return (ISC_R_SUCCESS);
+ }
+ }
+ }
+ }
+ }
+ return (ISC_R_NOTFOUND);
+}
+
+int
+named_config_listcount(const cfg_obj_t *list) {
+ const cfg_listelt_t *e;
+ int i = 0;
+
+ for (e = cfg_list_first(list); e != NULL; e = cfg_list_next(e)) {
+ i++;
+ }
+
+ return (i);
+}
+
+isc_result_t
+named_config_getclass(const cfg_obj_t *classobj, dns_rdataclass_t defclass,
+ dns_rdataclass_t *classp) {
+ isc_textregion_t r;
+ isc_result_t result;
+
+ if (!cfg_obj_isstring(classobj)) {
+ *classp = defclass;
+ return (ISC_R_SUCCESS);
+ }
+ DE_CONST(cfg_obj_asstring(classobj), r.base);
+ r.length = strlen(r.base);
+ result = dns_rdataclass_fromtext(classp, &r);
+ if (result != ISC_R_SUCCESS) {
+ cfg_obj_log(classobj, named_g_lctx, ISC_LOG_ERROR,
+ "unknown class '%s'", r.base);
+ }
+ return (result);
+}
+
+isc_result_t
+named_config_gettype(const cfg_obj_t *typeobj, dns_rdatatype_t deftype,
+ dns_rdatatype_t *typep) {
+ isc_textregion_t r;
+ isc_result_t result;
+
+ if (!cfg_obj_isstring(typeobj)) {
+ *typep = deftype;
+ return (ISC_R_SUCCESS);
+ }
+ DE_CONST(cfg_obj_asstring(typeobj), r.base);
+ r.length = strlen(r.base);
+ result = dns_rdatatype_fromtext(typep, &r);
+ if (result != ISC_R_SUCCESS) {
+ cfg_obj_log(typeobj, named_g_lctx, ISC_LOG_ERROR,
+ "unknown type '%s'", r.base);
+ }
+ return (result);
+}
+
+dns_zonetype_t
+named_config_getzonetype(const cfg_obj_t *zonetypeobj) {
+ dns_zonetype_t ztype = dns_zone_none;
+ const char *str;
+
+ str = cfg_obj_asstring(zonetypeobj);
+ if (strcasecmp(str, "primary") == 0 || strcasecmp(str, "master") == 0) {
+ ztype = dns_zone_primary;
+ } else if (strcasecmp(str, "secondary") == 0 ||
+ strcasecmp(str, "slave") == 0)
+ {
+ ztype = dns_zone_secondary;
+ } else if (strcasecmp(str, "mirror") == 0) {
+ ztype = dns_zone_mirror;
+ } else if (strcasecmp(str, "stub") == 0) {
+ ztype = dns_zone_stub;
+ } else if (strcasecmp(str, "static-stub") == 0) {
+ ztype = dns_zone_staticstub;
+ } else if (strcasecmp(str, "redirect") == 0) {
+ ztype = dns_zone_redirect;
+ } else {
+ UNREACHABLE();
+ }
+ return (ztype);
+}
+
+isc_result_t
+named_config_getiplist(const cfg_obj_t *config, const cfg_obj_t *list,
+ in_port_t defport, isc_mem_t *mctx,
+ isc_sockaddr_t **addrsp, uint32_t *countp) {
+ int count, i = 0;
+ const cfg_obj_t *addrlist = NULL;
+ const cfg_obj_t *portobj = NULL;
+ const cfg_listelt_t *element = NULL;
+ isc_sockaddr_t *addrs = NULL;
+ in_port_t port;
+ isc_result_t result;
+
+ INSIST(addrsp != NULL && *addrsp == NULL);
+ INSIST(countp != NULL);
+
+ addrlist = cfg_tuple_get(list, "addresses");
+ count = named_config_listcount(addrlist);
+
+ portobj = cfg_tuple_get(list, "port");
+ if (cfg_obj_isuint32(portobj)) {
+ uint32_t val = cfg_obj_asuint32(portobj);
+ if (val > UINT16_MAX) {
+ cfg_obj_log(portobj, named_g_lctx, ISC_LOG_ERROR,
+ "port '%u' out of range", val);
+ return (ISC_R_RANGE);
+ }
+ port = (in_port_t)val;
+ } else if (defport != 0) {
+ port = defport;
+ } else {
+ result = named_config_getport(config, "port", &port);
+ if (result != ISC_R_SUCCESS) {
+ return (result);
+ }
+ }
+
+ addrs = isc_mem_get(mctx, count * sizeof(isc_sockaddr_t));
+
+ for (element = cfg_list_first(addrlist); element != NULL;
+ element = cfg_list_next(element), i++)
+ {
+ const cfg_obj_t *addr;
+ INSIST(i < count);
+ addr = cfg_listelt_value(element);
+ addrs[i] = *cfg_obj_assockaddr(addr);
+ if (isc_sockaddr_getport(&addrs[i]) == 0) {
+ isc_sockaddr_setport(&addrs[i], port);
+ }
+ }
+ INSIST(i == count);
+
+ *addrsp = addrs;
+ *countp = count;
+
+ return (ISC_R_SUCCESS);
+}
+
+void
+named_config_putiplist(isc_mem_t *mctx, isc_sockaddr_t **addrsp,
+ uint32_t count) {
+ INSIST(addrsp != NULL && *addrsp != NULL);
+
+ isc_mem_put(mctx, *addrsp, count * sizeof(isc_sockaddr_t));
+ *addrsp = NULL;
+}
+
+static isc_result_t
+getremotesdef(const cfg_obj_t *cctx, const char *list, const char *name,
+ const cfg_obj_t **ret) {
+ isc_result_t result;
+ const cfg_obj_t *obj = NULL;
+ const cfg_listelt_t *elt;
+
+ REQUIRE(cctx != NULL);
+ REQUIRE(name != NULL);
+ REQUIRE(ret != NULL && *ret == NULL);
+
+ result = cfg_map_get(cctx, list, &obj);
+ if (result != ISC_R_SUCCESS) {
+ return (result);
+ }
+ elt = cfg_list_first(obj);
+ while (elt != NULL) {
+ obj = cfg_listelt_value(elt);
+ if (strcasecmp(cfg_obj_asstring(cfg_tuple_get(obj, "name")),
+ name) == 0)
+ {
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+ }
+ elt = cfg_list_next(elt);
+ }
+ return (ISC_R_NOTFOUND);
+}
+
+isc_result_t
+named_config_getremotesdef(const cfg_obj_t *cctx, const char *list,
+ const char *name, const cfg_obj_t **ret) {
+ isc_result_t result;
+
+ if (strcmp(list, "parental-agents") == 0) {
+ return (getremotesdef(cctx, list, name, ret));
+ } else if (strcmp(list, "primaries") == 0) {
+ result = getremotesdef(cctx, list, name, ret);
+ if (result != ISC_R_SUCCESS) {
+ result = getremotesdef(cctx, "masters", name, ret);
+ }
+ return (result);
+ }
+ return (ISC_R_NOTFOUND);
+}
+
+static isc_result_t
+named_config_getname(isc_mem_t *mctx, const cfg_obj_t *obj,
+ dns_name_t **namep) {
+ REQUIRE(namep != NULL && *namep == NULL);
+
+ const char *objstr;
+ isc_result_t result;
+ isc_buffer_t b;
+ dns_fixedname_t fname;
+
+ if (!cfg_obj_isstring(obj)) {
+ *namep = NULL;
+ return (ISC_R_SUCCESS);
+ }
+
+ *namep = isc_mem_get(mctx, sizeof(**namep));
+ dns_name_init(*namep, NULL);
+
+ objstr = cfg_obj_asstring(obj);
+ isc_buffer_constinit(&b, objstr, strlen(objstr));
+ isc_buffer_add(&b, strlen(objstr));
+ dns_fixedname_init(&fname);
+ result = dns_name_fromtext(dns_fixedname_name(&fname), &b, dns_rootname,
+ 0, NULL);
+ if (result != ISC_R_SUCCESS) {
+ isc_mem_put(mctx, *namep, sizeof(**namep));
+ *namep = NULL;
+ return (result);
+ }
+ dns_name_dup(dns_fixedname_name(&fname), mctx, *namep);
+
+ return (ISC_R_SUCCESS);
+}
+
+#define grow_array(mctx, array, newlen, oldlen) \
+ if (newlen >= oldlen) { \
+ size_t newsize = (newlen + 16) * sizeof(array[0]); \
+ size_t oldsize = oldlen * sizeof(array[0]); \
+ void *tmp = isc_mem_get(mctx, newsize); \
+ memset(tmp, 0, newsize); \
+ if (oldlen != 0) { \
+ memmove(tmp, array, oldsize); \
+ isc_mem_put(mctx, array, oldsize); \
+ } \
+ array = tmp; \
+ oldlen = newlen + 16; \
+ }
+
+#define shrink_array(mctx, array, newlen, oldlen) \
+ if (newlen < oldlen) { \
+ void *tmp = NULL; \
+ size_t newsize = newlen * sizeof(array[0]); \
+ size_t oldsize = oldlen * sizeof(array[0]); \
+ if (newlen != 0) { \
+ tmp = isc_mem_get(mctx, newsize); \
+ memset(tmp, 0, newsize); \
+ memmove(tmp, array, newsize); \
+ } else { \
+ tmp = NULL; \
+ } \
+ isc_mem_put(mctx, array, oldsize); \
+ array = tmp; \
+ oldlen = newlen; \
+ }
+
+isc_result_t
+named_config_getipandkeylist(const cfg_obj_t *config, const char *listtype,
+ const cfg_obj_t *list, isc_mem_t *mctx,
+ dns_ipkeylist_t *ipkl) {
+ uint32_t addrcount = 0, keycount = 0, tlscount = 0, i = 0;
+ uint32_t listcount = 0, l = 0, j;
+ uint32_t stackcount = 0, pushed = 0;
+ isc_result_t result;
+ const cfg_listelt_t *element;
+ const cfg_obj_t *addrlist;
+ const cfg_obj_t *portobj;
+ in_port_t port = (in_port_t)0;
+ in_port_t def_port;
+ in_port_t def_tlsport;
+ isc_sockaddr_t *addrs = NULL;
+ dns_name_t **keys = NULL;
+ dns_name_t **tlss = NULL;
+ struct {
+ const char *name;
+ in_port_t port;
+ isc_sockaddr_t *src4s;
+ isc_sockaddr_t *src6s;
+ } *lists = NULL;
+ struct {
+ const cfg_listelt_t *element;
+ in_port_t port;
+ } *stack = NULL;
+
+ REQUIRE(ipkl != NULL);
+ REQUIRE(ipkl->count == 0);
+ REQUIRE(ipkl->addrs == NULL);
+ REQUIRE(ipkl->keys == NULL);
+ REQUIRE(ipkl->tlss == NULL);
+ REQUIRE(ipkl->labels == NULL);
+ REQUIRE(ipkl->allocated == 0);
+
+ /*
+ * Get system defaults.
+ */
+ result = named_config_getport(config, "port", &def_port);
+ if (result != ISC_R_SUCCESS) {
+ goto cleanup;
+ }
+
+ result = named_config_getport(config, "tls-port", &def_tlsport);
+ if (result != ISC_R_SUCCESS) {
+ goto cleanup;
+ }
+
+newlist:
+ addrlist = cfg_tuple_get(list, "addresses");
+ portobj = cfg_tuple_get(list, "port");
+
+ if (cfg_obj_isuint32(portobj)) {
+ uint32_t val = cfg_obj_asuint32(portobj);
+ if (val > UINT16_MAX) {
+ cfg_obj_log(portobj, named_g_lctx, ISC_LOG_ERROR,
+ "port '%u' out of range", val);
+ result = ISC_R_RANGE;
+ goto cleanup;
+ }
+ port = (in_port_t)val;
+ }
+
+ result = ISC_R_NOMEMORY;
+
+ element = cfg_list_first(addrlist);
+resume:
+ for (; element != NULL; element = cfg_list_next(element)) {
+ const cfg_obj_t *addr;
+ const cfg_obj_t *key;
+ const cfg_obj_t *tls;
+
+ addr = cfg_tuple_get(cfg_listelt_value(element),
+ "remoteselement");
+ key = cfg_tuple_get(cfg_listelt_value(element), "key");
+ tls = cfg_tuple_get(cfg_listelt_value(element), "tls");
+
+ if (!cfg_obj_issockaddr(addr)) {
+ const char *listname = cfg_obj_asstring(addr);
+ isc_result_t tresult;
+
+ /* Grow lists? */
+ grow_array(mctx, lists, l, listcount);
+
+ /* Seen? */
+ for (j = 0; j < l; j++) {
+ if (strcasecmp(lists[j].name, listname) == 0) {
+ break;
+ }
+ }
+ if (j < l) {
+ continue;
+ }
+ list = NULL;
+ tresult = named_config_getremotesdef(config, listtype,
+ listname, &list);
+ if (tresult == ISC_R_NOTFOUND) {
+ cfg_obj_log(addr, named_g_lctx, ISC_LOG_ERROR,
+ "%s \"%s\" not found", listtype,
+ listname);
+
+ result = tresult;
+ goto cleanup;
+ }
+ if (tresult != ISC_R_SUCCESS) {
+ goto cleanup;
+ }
+ lists[l++].name = listname;
+ /* Grow stack? */
+ grow_array(mctx, stack, pushed, stackcount);
+ /*
+ * We want to resume processing this list on the
+ * next element.
+ */
+ stack[pushed].element = cfg_list_next(element);
+ stack[pushed].port = port;
+ pushed++;
+ goto newlist;
+ }
+
+ grow_array(mctx, addrs, i, addrcount);
+ grow_array(mctx, keys, i, keycount);
+ grow_array(mctx, tlss, i, tlscount);
+
+ addrs[i] = *cfg_obj_assockaddr(addr);
+
+ result = named_config_getname(mctx, key, &keys[i]);
+ if (result != ISC_R_SUCCESS) {
+ i++; /* Increment here so that cleanup on error works.
+ */
+ goto cleanup;
+ }
+
+ result = named_config_getname(mctx, tls, &tlss[i]);
+ if (result != ISC_R_SUCCESS) {
+ i++; /* Increment here so that cleanup on error works.
+ */
+ goto cleanup;
+ }
+
+ /* If the port is unset, take it from one of the upper levels */
+ if (isc_sockaddr_getport(&addrs[i]) == 0) {
+ in_port_t addr_port = port;
+
+ /* If unset, use the default port or tls-port */
+ if (addr_port == 0) {
+ if (tlss[i] != NULL) {
+ addr_port = def_tlsport;
+ } else {
+ addr_port = def_port;
+ }
+ }
+
+ isc_sockaddr_setport(&addrs[i], addr_port);
+ }
+
+ i++;
+ }
+ if (pushed != 0) {
+ pushed--;
+ element = stack[pushed].element;
+ port = stack[pushed].port;
+ goto resume;
+ }
+
+ shrink_array(mctx, addrs, i, addrcount);
+ shrink_array(mctx, keys, i, keycount);
+ shrink_array(mctx, tlss, i, tlscount);
+
+ if (lists != NULL) {
+ isc_mem_put(mctx, lists, listcount * sizeof(lists[0]));
+ }
+ if (stack != NULL) {
+ isc_mem_put(mctx, stack, stackcount * sizeof(stack[0]));
+ }
+
+ INSIST(keycount == addrcount);
+ INSIST(tlscount == addrcount);
+
+ ipkl->addrs = addrs;
+ ipkl->keys = keys;
+ ipkl->tlss = tlss;
+ ipkl->count = addrcount;
+ ipkl->allocated = addrcount;
+
+ return (ISC_R_SUCCESS);
+
+cleanup:
+ if (addrs != NULL) {
+ isc_mem_put(mctx, addrs, addrcount * sizeof(addrs[0]));
+ }
+ if (keys != NULL) {
+ for (j = 0; j < i; j++) {
+ if (keys[j] == NULL) {
+ continue;
+ }
+ if (dns_name_dynamic(keys[j])) {
+ dns_name_free(keys[j], mctx);
+ }
+ isc_mem_put(mctx, keys[j], sizeof(*keys[j]));
+ }
+ isc_mem_put(mctx, keys, keycount * sizeof(keys[0]));
+ }
+ if (tlss != NULL) {
+ for (j = 0; j < i; j++) {
+ if (tlss[j] == NULL) {
+ continue;
+ }
+ if (dns_name_dynamic(tlss[j])) {
+ dns_name_free(tlss[j], mctx);
+ }
+ isc_mem_put(mctx, tlss[j], sizeof(*tlss[j]));
+ }
+ isc_mem_put(mctx, tlss, tlscount * sizeof(tlss[0]));
+ }
+ if (lists != NULL) {
+ isc_mem_put(mctx, lists, listcount * sizeof(lists[0]));
+ }
+ if (stack != NULL) {
+ isc_mem_put(mctx, stack, stackcount * sizeof(stack[0]));
+ }
+ return (result);
+}
+
+isc_result_t
+named_config_getport(const cfg_obj_t *config, const char *type,
+ in_port_t *portp) {
+ const cfg_obj_t *maps[3];
+ const cfg_obj_t *options = NULL;
+ const cfg_obj_t *portobj = NULL;
+ isc_result_t result;
+ int i;
+
+ (void)cfg_map_get(config, "options", &options);
+ i = 0;
+ if (options != NULL) {
+ maps[i++] = options;
+ }
+ maps[i++] = named_g_defaults;
+ maps[i] = NULL;
+
+ result = named_config_get(maps, type, &portobj);
+ INSIST(result == ISC_R_SUCCESS);
+ if (cfg_obj_asuint32(portobj) >= UINT16_MAX) {
+ cfg_obj_log(portobj, named_g_lctx, ISC_LOG_ERROR,
+ "port '%u' out of range",
+ cfg_obj_asuint32(portobj));
+ return (ISC_R_RANGE);
+ }
+ *portp = (in_port_t)cfg_obj_asuint32(portobj);
+ return (ISC_R_SUCCESS);
+}
+
+struct keyalgorithms {
+ const char *str;
+ enum {
+ hmacnone,
+ hmacmd5,
+ hmacsha1,
+ hmacsha224,
+ hmacsha256,
+ hmacsha384,
+ hmacsha512
+ } hmac;
+ unsigned int type;
+ uint16_t size;
+} algorithms[] = { { "hmac-md5", hmacmd5, DST_ALG_HMACMD5, 128 },
+ { "hmac-md5.sig-alg.reg.int", hmacmd5, DST_ALG_HMACMD5, 0 },
+ { "hmac-md5.sig-alg.reg.int.", hmacmd5, DST_ALG_HMACMD5, 0 },
+ { "hmac-sha1", hmacsha1, DST_ALG_HMACSHA1, 160 },
+ { "hmac-sha224", hmacsha224, DST_ALG_HMACSHA224, 224 },
+ { "hmac-sha256", hmacsha256, DST_ALG_HMACSHA256, 256 },
+ { "hmac-sha384", hmacsha384, DST_ALG_HMACSHA384, 384 },
+ { "hmac-sha512", hmacsha512, DST_ALG_HMACSHA512, 512 },
+ { NULL, hmacnone, DST_ALG_UNKNOWN, 0 } };
+
+isc_result_t
+named_config_getkeyalgorithm(const char *str, const dns_name_t **name,
+ uint16_t *digestbits) {
+ return (named_config_getkeyalgorithm2(str, name, NULL, digestbits));
+}
+
+isc_result_t
+named_config_getkeyalgorithm2(const char *str, const dns_name_t **name,
+ unsigned int *typep, uint16_t *digestbits) {
+ int i;
+ size_t len = 0;
+ uint16_t bits;
+ isc_result_t result;
+
+ for (i = 0; algorithms[i].str != NULL; i++) {
+ len = strlen(algorithms[i].str);
+ if (strncasecmp(algorithms[i].str, str, len) == 0 &&
+ (str[len] == '\0' ||
+ (algorithms[i].size != 0 && str[len] == '-')))
+ {
+ break;
+ }
+ }
+ if (algorithms[i].str == NULL) {
+ return (ISC_R_NOTFOUND);
+ }
+ if (str[len] == '-') {
+ result = isc_parse_uint16(&bits, str + len + 1, 10);
+ if (result != ISC_R_SUCCESS) {
+ return (result);
+ }
+ if (bits > algorithms[i].size) {
+ return (ISC_R_RANGE);
+ }
+ } else if (algorithms[i].size == 0) {
+ bits = 128;
+ } else {
+ bits = algorithms[i].size;
+ }
+
+ if (name != NULL) {
+ switch (algorithms[i].hmac) {
+ case hmacmd5:
+ *name = dns_tsig_hmacmd5_name;
+ break;
+ case hmacsha1:
+ *name = dns_tsig_hmacsha1_name;
+ break;
+ case hmacsha224:
+ *name = dns_tsig_hmacsha224_name;
+ break;
+ case hmacsha256:
+ *name = dns_tsig_hmacsha256_name;
+ break;
+ case hmacsha384:
+ *name = dns_tsig_hmacsha384_name;
+ break;
+ case hmacsha512:
+ *name = dns_tsig_hmacsha512_name;
+ break;
+ default:
+ UNREACHABLE();
+ }
+ }
+ if (typep != NULL) {
+ *typep = algorithms[i].type;
+ }
+ if (digestbits != NULL) {
+ *digestbits = bits;
+ }
+ return (ISC_R_SUCCESS);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-04 00:01:00 +0000