#include "dsdb/common/util.h"
#include "dns_server/dns_server.h"
-uint8_t werr_to_dns_err(WERROR werr)
-{
- if (W_ERROR_EQUAL(WERR_OK, werr)) {
- return DNS_RCODE_OK;
- } else if (W_ERROR_EQUAL(DNS_ERR(FORMAT_ERROR), werr)) {
- return DNS_RCODE_FORMERR;
- } else if (W_ERROR_EQUAL(DNS_ERR(SERVER_FAILURE), werr)) {
- return DNS_RCODE_SERVFAIL;
- } else if (W_ERROR_EQUAL(DNS_ERR(NAME_ERROR), werr)) {
- return DNS_RCODE_NXDOMAIN;
- } else if (W_ERROR_EQUAL(DNS_ERR(NOT_IMPLEMENTED), werr)) {
- return DNS_RCODE_NOTIMP;
- } else if (W_ERROR_EQUAL(DNS_ERR(REFUSED), werr)) {
- return DNS_RCODE_REFUSED;
- } else if (W_ERROR_EQUAL(DNS_ERR(YXDOMAIN), werr)) {
- return DNS_RCODE_YXDOMAIN;
- } else if (W_ERROR_EQUAL(DNS_ERR(YXRRSET), werr)) {
- return DNS_RCODE_YXRRSET;
- } else if (W_ERROR_EQUAL(DNS_ERR(NXRRSET), werr)) {
- return DNS_RCODE_NXRRSET;
- } else if (W_ERROR_EQUAL(DNS_ERR(NOTAUTH), werr)) {
- return DNS_RCODE_NOTAUTH;
- } else if (W_ERROR_EQUAL(DNS_ERR(NOTZONE), werr)) {
- return DNS_RCODE_NOTZONE;
- }
- DEBUG(5, ("No mapping exists for %%s\n"));
- return DNS_RCODE_SERVFAIL;
-}
-
-bool dns_name_match(const char *zone, const char *name, size_t *host_part_len)
-{
- size_t zl = strlen(zone);
- size_t nl = strlen(name);
- ssize_t zi, ni;
- static const size_t fixup = 'a' - 'A';
-
- if (zl > nl) {
- return false;
- }
-
- for (zi = zl, ni = nl; zi >= 0; zi--, ni--) {
- char zc = zone[zi];
- char nc = name[ni];
-
- /* convert to lower case */
- if (zc >= 'A' && zc <= 'Z') {
- zc += fixup;
- }
- if (nc >= 'A' && nc <= 'Z') {
- nc += fixup;
- }
-
- if (zc != nc) {
- return false;
- }
- }
-
- if (ni >= 0) {
- if (name[ni] != '.') {
- return false;
- }
-
- ni--;
- }
-
- *host_part_len = ni+1;
-
- return true;
-}
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_DNS
/* Names are equal if they match and there's nothing left over */
bool dns_name_equal(const char *name1, const char *name2)
struct dnsp_DnssrvRpcRecord **records,
uint16_t *rec_count)
{
- static const char * const attrs[] = { "dnsRecord", NULL};
- struct ldb_message_element *el;
- uint16_t ri;
- int ret;
- struct ldb_message *msg = NULL;
- struct dnsp_DnssrvRpcRecord *recs;
-
- ret = dsdb_search_one(dns->samdb, mem_ctx, &msg, dn,
- LDB_SCOPE_BASE, attrs, 0, "%s", "(objectClass=dnsNode)");
- if (ret != LDB_SUCCESS) {
- /* TODO: we need to check if there's a glue record we need to
- * create a referral to */
- return DNS_ERR(NAME_ERROR);
- }
-
- el = ldb_msg_find_element(msg, attrs[0]);
- if (el == NULL) {
- *records = NULL;
- *rec_count = 0;
- return WERR_OK;
- }
-
- recs = talloc_zero_array(mem_ctx, struct dnsp_DnssrvRpcRecord, el->num_values);
- W_ERROR_HAVE_NO_MEMORY(recs);
- for (ri = 0; ri < el->num_values; ri++) {
- struct ldb_val *v = &el->values[ri];
- enum ndr_err_code ndr_err;
-
- ndr_err = ndr_pull_struct_blob(v, recs, &recs[ri],
- (ndr_pull_flags_fn_t)ndr_pull_dnsp_DnssrvRpcRecord);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- DEBUG(0, ("Failed to grab dnsp_DnssrvRpcRecord\n"));
- return DNS_ERR(SERVER_FAILURE);
- }
- }
- *records = recs;
- *rec_count = el->num_values;
- return WERR_OK;
+ return dns_common_lookup(dns->samdb, mem_ctx, dn,
+ records, rec_count, NULL);
}
WERROR dns_replace_records(struct dns_server *dns,
TALLOC_CTX *mem_ctx,
struct ldb_dn *dn,
bool needs_add,
- const struct dnsp_DnssrvRpcRecord *records,
+ struct dnsp_DnssrvRpcRecord *records,
uint16_t rec_count)
{
- struct ldb_message_element *el;
- uint16_t i;
- int ret;
- struct ldb_message *msg = NULL;
-
- msg = ldb_msg_new(mem_ctx);
- W_ERROR_HAVE_NO_MEMORY(msg);
-
- msg->dn = dn;
-
- ret = ldb_msg_add_empty(msg, "dnsRecord", LDB_FLAG_MOD_REPLACE, &el);
- if (ret != LDB_SUCCESS) {
- return DNS_ERR(SERVER_FAILURE);
- }
-
- el->values = talloc_zero_array(el, struct ldb_val, rec_count);
- if (rec_count > 0) {
- W_ERROR_HAVE_NO_MEMORY(el->values);
- }
+ /* TODO: Autogenerate this somehow */
+ uint32_t dwSerial = 110;
+ return dns_common_replace(dns->samdb, mem_ctx, dn,
+ needs_add, dwSerial, records, rec_count);
+}
- for (i = 0; i < rec_count; i++) {
- static const struct dnsp_DnssrvRpcRecord zero;
- struct ldb_val *v = &el->values[el->num_values];
- enum ndr_err_code ndr_err;
+bool dns_authorative_for_zone(struct dns_server *dns,
+ const char *name)
+{
+ const struct dns_server_zone *z;
+ size_t host_part_len = 0;
- if (memcmp(&records[i], &zero, sizeof(zero)) == 0) {
- continue;
- }
- ndr_err = ndr_push_struct_blob(v, el->values, &records[i],
- (ndr_push_flags_fn_t)ndr_push_dnsp_DnssrvRpcRecord);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- DEBUG(0, ("Failed to grab dnsp_DnssrvRpcRecord\n"));
- return DNS_ERR(SERVER_FAILURE);
- }
- el->num_values++;
+ if (name == NULL) {
+ return false;
}
-
- if (el->num_values == 0) {
- if (needs_add) {
- return WERR_OK;
- }
- /* TODO: Delete object? */
+ if (strcmp(name, "") == 0) {
+ return true;
}
+ for (z = dns->zones; z != NULL; z = z->next) {
+ bool match;
- if (needs_add) {
- ret = ldb_msg_add_string(msg, "objectClass", "dnsNode");
- if (ret != LDB_SUCCESS) {
- return DNS_ERR(SERVER_FAILURE);
- }
-
- ret = ldb_add(dns->samdb, msg);
- if (ret != LDB_SUCCESS) {
- return DNS_ERR(SERVER_FAILURE);
+ match = dns_name_match(z->name, name, &host_part_len);
+ if (match) {
+ break;
}
-
- return WERR_OK;
}
-
- ret = ldb_modify(dns->samdb, msg);
- if (ret != LDB_SUCCESS) {
- return DNS_ERR(SERVER_FAILURE);
+ if (z == NULL) {
+ return false;
}
- return WERR_OK;
+ return true;
}
-WERROR dns_name2dn(struct dns_server *dns,
- TALLOC_CTX *mem_ctx,
- const char *name,
- struct ldb_dn **_dn)
+const char *dns_get_authoritative_zone(struct dns_server *dns,
+ const char *name)
{
- struct ldb_dn *base;
- struct ldb_dn *dn;
const struct dns_server_zone *z;
size_t host_part_len = 0;
- if (name == NULL) {
- return DNS_ERR(FORMAT_ERROR);
- }
-
- /*TODO: Check if 'name' is a valid DNS name */
-
- if (strcmp(name, "") == 0) {
- base = ldb_get_default_basedn(dns->samdb);
- dn = ldb_dn_copy(mem_ctx, base);
- ldb_dn_add_child_fmt(dn, "DC=@,DC=RootDNSServers,CN=MicrosoftDNS,CN=System");
- *_dn = dn;
- return WERR_OK;
- }
-
for (z = dns->zones; z != NULL; z = z->next) {
bool match;
-
match = dns_name_match(z->name, name, &host_part_len);
if (match) {
- break;
+ return z->name;
}
}
+ return NULL;
+}
- if (z == NULL) {
- return DNS_ERR(NAME_ERROR);
- }
+WERROR dns_name2dn(struct dns_server *dns,
+ TALLOC_CTX *mem_ctx,
+ const char *name,
+ struct ldb_dn **dn)
+{
+ return dns_common_name2dn(dns->samdb, dns->zones,
+ mem_ctx, name, dn);
+}
+
+WERROR dns_generate_options(struct dns_server *dns,
+ TALLOC_CTX *mem_ctx,
+ struct dns_res_rec **options)
+{
+ struct dns_res_rec *o;
- if (host_part_len == 0) {
- dn = ldb_dn_copy(mem_ctx, z->dn);
- ldb_dn_add_child_fmt(dn, "DC=@");
- *_dn = dn;
- return WERR_OK;
+ o = talloc_zero(mem_ctx, struct dns_res_rec);
+ if (o == NULL) {
+ return WERR_NOMEM;
}
+ o->name = NULL;
+ o->rr_type = DNS_QTYPE_OPT;
+ /* This is ugly, but RFC2671 wants the payload size in this field */
+ o->rr_class = (enum dns_qclass) dns->max_payload;
+ o->ttl = 0;
+ o->length = 0;
- dn = ldb_dn_copy(mem_ctx, z->dn);
- ldb_dn_add_child_fmt(dn, "DC=%*.*s", (int)host_part_len, (int)host_part_len, name);
- *_dn = dn;
+ *options = o;
return WERR_OK;
}
git.samba.org / samba.git / blobdiff