/* * Create a specialised SSU table that points at an external DLZ database */ isc_result_t dns_ssutable_createdlz(isc_mem_t *mctx, dns_ssutable_t **tablep, dns_dlzdb_t *dlzdatabase) { isc_result_t result; dns_ssurule_t *rule; dns_ssutable_t *table = NULL; REQUIRE(tablep != NULL && *tablep == NULL); result = dns_ssutable_create(mctx, &table); if (result != ISC_R_SUCCESS) return (result); table->dlzdatabase = dlzdatabase; rule = isc_mem_get(table->mctx, sizeof(dns_ssurule_t)); if (rule == NULL) { dns_ssutable_detach(&table); return (ISC_R_NOMEMORY); } rule->identity = NULL; rule->name = NULL; rule->types = NULL; rule->grant = ISC_TRUE; rule->matchtype = DNS_SSUMATCHTYPE_DLZ; rule->ntypes = 0; rule->types = NULL; rule->magic = SSURULEMAGIC; ISC_LIST_INITANDAPPEND(table->rules, rule, link); *tablep = table; return (ISC_R_SUCCESS); }
isc_result_t dns_order_add(dns_order_t *order, dns_name_t *name, dns_rdatatype_t rdtype, dns_rdataclass_t rdclass, unsigned int mode) { dns_order_ent_t *ent; REQUIRE(DNS_ORDER_VALID(order)); REQUIRE(mode == DNS_RDATASETATTR_RANDOMIZE || mode == DNS_RDATASETATTR_FIXEDORDER || mode == 0 /* DNS_RDATASETATTR_CYCLIC */ ); ent = isc_mem_get(order->mctx, sizeof(*ent)); if (ent == NULL) return (ISC_R_NOMEMORY); dns_fixedname_init(&ent->name); RUNTIME_CHECK(dns_name_copy(name, dns_fixedname_name(&ent->name), NULL) == ISC_R_SUCCESS); ent->rdtype = rdtype; ent->rdclass = rdclass; ent->mode = mode; ISC_LINK_INIT(ent, link); ISC_LIST_INITANDAPPEND(order->ents, ent, link); return (ISC_R_SUCCESS); }
/* * A supplemental routine just to add a key to ring. Note that reference * counter should be counted separately because we may be adding the key * as part of creation of the key, in which case the reference counter was * already initialized. Also note we don't need RWLOCK for the reference * counter: it's protected by a separate lock. */ static isc_result_t keyring_add(dns_tsig_keyring_t *ring, dns_name_t *name, dns_tsigkey_t *tkey) { isc_result_t result; RWLOCK(&ring->lock, isc_rwlocktype_write); ring->writecount++; /* * Do on the fly cleaning. Find some nodes we might not * want around any more. */ if (ring->writecount > 10) { cleanup_ring(ring); ring->writecount = 0; } result = dns_rbt_addname(ring->keys, name, tkey); if (tkey->generated) { /* * Add the new key to the LRU list and remove the least * recently used key if there are too many keys on the list. */ ISC_LIST_INITANDAPPEND(ring->lru, tkey, link); if (ring->generated++ > ring->maxgenerated) remove_fromring(ISC_LIST_HEAD(ring->lru)); } RWUNLOCK(&ring->lock, isc_rwlocktype_write); return (result); }
isc_result_t dns_ssutable_addrule(dns_ssutable_t *table, isc_boolean_t grant, dns_name_t *identity, unsigned int matchtype, dns_name_t *name, unsigned int ntypes, dns_rdatatype_t *types) { dns_ssurule_t *rule; isc_mem_t *mctx; isc_result_t result; REQUIRE(VALID_SSUTABLE(table)); REQUIRE(dns_name_isabsolute(identity)); REQUIRE(dns_name_isabsolute(name)); REQUIRE(matchtype <= DNS_SSUMATCHTYPE_MAX); if (matchtype == DNS_SSUMATCHTYPE_WILDCARD) REQUIRE(dns_name_iswildcard(name)); if (ntypes > 0) REQUIRE(types != NULL); mctx = table->mctx; rule = isc_mem_get(mctx, sizeof(dns_ssurule_t)); if (rule == NULL) return (ISC_R_NOMEMORY); rule->identity = NULL; rule->name = NULL; rule->types = NULL; rule->grant = grant; rule->identity = isc_mem_get(mctx, sizeof(dns_name_t)); if (rule->identity == NULL) { result = ISC_R_NOMEMORY; goto failure; } dns_name_init(rule->identity, NULL); result = dns_name_dup(identity, mctx, rule->identity); if (result != ISC_R_SUCCESS) goto failure; rule->name = isc_mem_get(mctx, sizeof(dns_name_t)); if (rule->name == NULL) { result = ISC_R_NOMEMORY; goto failure; } dns_name_init(rule->name, NULL); result = dns_name_dup(name, mctx, rule->name); if (result != ISC_R_SUCCESS) goto failure; rule->matchtype = matchtype; rule->ntypes = ntypes; if (ntypes > 0) { rule->types = isc_mem_get(mctx, ntypes * sizeof(dns_rdatatype_t)); if (rule->types == NULL) { result = ISC_R_NOMEMORY; goto failure; } memmove(rule->types, types, ntypes * sizeof(dns_rdatatype_t)); } else rule->types = NULL; rule->magic = SSURULEMAGIC; ISC_LIST_INITANDAPPEND(table->rules, rule, link); return (ISC_R_SUCCESS); failure: if (rule->identity != NULL) { if (dns_name_dynamic(rule->identity)) dns_name_free(rule->identity, mctx); isc_mem_put(mctx, rule->identity, sizeof(dns_name_t)); } if (rule->name != NULL) { if (dns_name_dynamic(rule->name)) dns_name_free(rule->name, mctx); isc_mem_put(mctx, rule->name, sizeof(dns_name_t)); } if (rule->types != NULL) isc_mem_put(mctx, rule->types, ntypes * sizeof(dns_rdatatype_t)); isc_mem_put(mctx, rule, sizeof(dns_ssurule_t)); return (result); }
int main(int argc, char *argv[]) { int i, ch; char *startstr = NULL, *endstr = NULL; dns_fixedname_t fdomain; dns_name_t *domain = NULL; char *output = NULL; char *endp; unsigned char data[65536]; dns_db_t *db; dns_dbversion_t *version; dns_diff_t diff; dns_difftuple_t *tuple; dns_fixedname_t tname; dst_key_t *key = NULL; dns_rdata_t rdata = DNS_RDATA_INIT; dns_rdataset_t rdataset; dns_rdataclass_t rdclass; isc_result_t result; isc_buffer_t b; isc_region_t r; isc_log_t *log = NULL; keynode_t *keynode; unsigned int eflags; isc_boolean_t pseudorandom = ISC_FALSE; isc_boolean_t tryverify = ISC_FALSE; result = isc_mem_create(0, 0, &mctx); if (result != ISC_R_SUCCESS) fatal("failed to create memory context: %s", isc_result_totext(result)); dns_result_register(); while ((ch = isc_commandline_parse(argc, argv, "as:e:t:r:v:ph")) != -1) { switch (ch) { case 'a': tryverify = ISC_TRUE; break; case 's': startstr = isc_commandline_argument; break; case 'e': endstr = isc_commandline_argument; break; case 't': endp = NULL; ttl = strtol(isc_commandline_argument, &endp, 0); if (*endp != '\0') fatal("TTL must be numeric"); break; case 'r': setup_entropy(mctx, isc_commandline_argument, &ectx); break; case 'v': endp = NULL; verbose = strtol(isc_commandline_argument, &endp, 0); if (*endp != '\0') fatal("verbose level must be numeric"); break; case 'p': pseudorandom = ISC_TRUE; break; case 'h': default: usage(); } } argc -= isc_commandline_index; argv += isc_commandline_index; if (argc < 1) usage(); if (ectx == NULL) setup_entropy(mctx, NULL, &ectx); eflags = ISC_ENTROPY_BLOCKING; if (!pseudorandom) eflags |= ISC_ENTROPY_GOODONLY; result = dst_lib_init(mctx, ectx, eflags); if (result != ISC_R_SUCCESS) fatal("could not initialize dst: %s", isc_result_totext(result)); isc_stdtime_get(&now); if (startstr != NULL) starttime = strtotime(startstr, now, now); else starttime = now; if (endstr != NULL) endtime = strtotime(endstr, now, starttime); else endtime = starttime + (30 * 24 * 60 * 60); if (ttl == -1) { ttl = 3600; fprintf(stderr, "%s: TTL not specified, assuming 3600\n", program); } setup_logging(verbose, mctx, &log); dns_diff_init(mctx, &diff); rdclass = 0; ISC_LIST_INIT(keylist); for (i = 0; i < argc; i++) { char namestr[DNS_NAME_FORMATSIZE]; isc_buffer_t namebuf; key = NULL; result = dst_key_fromnamedfile(argv[i], DST_TYPE_PUBLIC, mctx, &key); if (result != ISC_R_SUCCESS) fatal("error loading key from %s: %s", argv[i], isc_result_totext(result)); if (rdclass == 0) rdclass = dst_key_class(key); isc_buffer_init(&namebuf, namestr, sizeof(namestr)); result = dns_name_tofilenametext(dst_key_name(key), ISC_FALSE, &namebuf); check_result(result, "dns_name_tofilenametext"); isc_buffer_putuint8(&namebuf, 0); if (domain == NULL) { dns_fixedname_init(&fdomain); domain = dns_fixedname_name(&fdomain); dns_name_copy(dst_key_name(key), domain, NULL); } else if (!dns_name_equal(domain, dst_key_name(key))) { char str[DNS_NAME_FORMATSIZE]; dns_name_format(domain, str, sizeof(str)); fatal("all keys must have the same owner - %s " "and %s do not match", str, namestr); } if (output == NULL) { output = isc_mem_allocate(mctx, strlen("keyset-") + strlen(namestr) + 1); if (output == NULL) fatal("out of memory"); sprintf(output, "keyset-%s", namestr); } if (dst_key_iszonekey(key)) { dst_key_t *zonekey = NULL; result = dst_key_fromnamedfile(argv[i], DST_TYPE_PUBLIC | DST_TYPE_PRIVATE, mctx, &zonekey); if (result != ISC_R_SUCCESS) fatal("failed to read private key %s: %s", argv[i], isc_result_totext(result)); if (!zonekey_on_list(zonekey)) { keynode = isc_mem_get(mctx, sizeof(keynode_t)); if (keynode == NULL) fatal("out of memory"); keynode->key = zonekey; ISC_LIST_INITANDAPPEND(keylist, keynode, link); } else dst_key_free(&zonekey); } dns_rdata_reset(&rdata); isc_buffer_init(&b, data, sizeof(data)); result = dst_key_todns(key, &b); dst_key_free(&key); if (result != ISC_R_SUCCESS) fatal("failed to convert key %s to a DNS KEY: %s", argv[i], isc_result_totext(result)); isc_buffer_usedregion(&b, &r); dns_rdata_fromregion(&rdata, rdclass, dns_rdatatype_dnskey, &r); tuple = NULL; result = dns_difftuple_create(mctx, DNS_DIFFOP_ADD, domain, ttl, &rdata, &tuple); check_result(result, "dns_difftuple_create"); dns_diff_append(&diff, &tuple); } db = NULL; result = dns_db_create(mctx, "rbt", dns_rootname, dns_dbtype_zone, rdclass, 0, NULL, &db); if (result != ISC_R_SUCCESS) fatal("failed to create a database"); version = NULL; dns_db_newversion(db, &version); result = dns_diff_apply(&diff, db, version); check_result(result, "dns_diff_apply"); dns_diff_clear(&diff); dns_fixedname_init(&tname); dns_rdataset_init(&rdataset); result = dns_db_find(db, domain, version, dns_rdatatype_dnskey, 0, 0, NULL, dns_fixedname_name(&tname), &rdataset, NULL); check_result(result, "dns_db_find"); if (ISC_LIST_EMPTY(keylist)) fprintf(stderr, "%s: no private zone key found; not self-signing\n", program); for (keynode = ISC_LIST_HEAD(keylist); keynode != NULL; keynode = ISC_LIST_NEXT(keynode, link)) { dns_rdata_reset(&rdata); isc_buffer_init(&b, data, sizeof(data)); result = dns_dnssec_sign(domain, &rdataset, keynode->key, &starttime, &endtime, mctx, &b, &rdata); isc_entropy_stopcallbacksources(ectx); if (result != ISC_R_SUCCESS) { char keystr[KEY_FORMATSIZE]; key_format(keynode->key, keystr, sizeof(keystr)); fatal("failed to sign keyset with key %s: %s", keystr, isc_result_totext(result)); } if (tryverify) { result = dns_dnssec_verify(domain, &rdataset, keynode->key, ISC_TRUE, mctx, &rdata); if (result != ISC_R_SUCCESS) { char keystr[KEY_FORMATSIZE]; key_format(keynode->key, keystr, sizeof(keystr)); fatal("signature from key '%s' failed to " "verify: %s", keystr, isc_result_totext(result)); } } tuple = NULL; result = dns_difftuple_create(mctx, DNS_DIFFOP_ADD, domain, ttl, &rdata, &tuple); check_result(result, "dns_difftuple_create"); dns_diff_append(&diff, &tuple); } result = dns_diff_apply(&diff, db, version); check_result(result, "dns_diff_apply"); dns_diff_clear(&diff); dns_rdataset_disassociate(&rdataset); dns_db_closeversion(db, &version, ISC_TRUE); result = dns_db_dump(db, version, output); if (result != ISC_R_SUCCESS) { char domainstr[DNS_NAME_FORMATSIZE]; dns_name_format(domain, domainstr, sizeof(domainstr)); fatal("failed to write database for %s to %s", domainstr, output); } printf("%s\n", output); dns_db_detach(&db); while (!ISC_LIST_EMPTY(keylist)) { keynode = ISC_LIST_HEAD(keylist); ISC_LIST_UNLINK(keylist, keynode, link); dst_key_free(&keynode->key); isc_mem_put(mctx, keynode, sizeof(keynode_t)); } cleanup_logging(&log); cleanup_entropy(&ectx); isc_mem_free(mctx, output); dst_lib_destroy(); if (verbose > 10) isc_mem_stats(mctx, stdout); isc_mem_destroy(&mctx); return (0); }