#include "gen_ndr/ndr_dnsp.h"
#include "gen_ndr/server_id.h"
#include "messaging/messaging.h"
-#include "lib/cmdline/popt_common.h"
+#include <popt.h>
#include "lib/util/dlinklist.h"
#include "dlz_minimal.h"
#include "dns_server/dnsserver_common.h"
}
}
+/*
+ * Add a trailing '.' if it's missing
+ */
+static const char *b9_format_fqdn(TALLOC_CTX *mem_ctx, const char *str)
+{
+ size_t len;
+ const char *tmp;
+
+ if (str == NULL || str[0] == '\0') {
+ return str;
+ }
+
+ len = strlen(str);
+ if (str[len-1] != '.') {
+ tmp = talloc_asprintf(mem_ctx, "%s.", str);
+ } else {
+ tmp = str;
+ }
+ return tmp;
+}
+
/*
format a record for bind9
*/
{
uint32_t i;
char *tmp;
+ const char *fqdn;
switch (rec->wType) {
case DNS_TYPE_A:
case DNS_TYPE_CNAME:
*type = "cname";
- *data = rec->data.cname;
+ *data = b9_format_fqdn(mem_ctx, rec->data.cname);
break;
case DNS_TYPE_TXT:
case DNS_TYPE_PTR:
*type = "ptr";
- *data = rec->data.ptr;
+ *data = b9_format_fqdn(mem_ctx, rec->data.ptr);
break;
case DNS_TYPE_SRV:
*type = "srv";
+ fqdn = b9_format_fqdn(mem_ctx, rec->data.srv.nameTarget);
+ if (fqdn == NULL) {
+ return false;
+ }
*data = talloc_asprintf(mem_ctx, "%u %u %u %s",
rec->data.srv.wPriority,
rec->data.srv.wWeight,
rec->data.srv.wPort,
- rec->data.srv.nameTarget);
+ fqdn);
break;
case DNS_TYPE_MX:
*type = "mx";
+ fqdn = b9_format_fqdn(mem_ctx, rec->data.mx.nameTarget);
+ if (fqdn == NULL) {
+ return false;
+ }
*data = talloc_asprintf(mem_ctx, "%u %s",
- rec->data.mx.wPriority,
- rec->data.mx.nameTarget);
+ rec->data.mx.wPriority, fqdn);
break;
case DNS_TYPE_HINFO:
case DNS_TYPE_NS:
*type = "ns";
- *data = rec->data.ns;
+ *data = b9_format_fqdn(mem_ctx, rec->data.ns);
break;
case DNS_TYPE_SOA: {
* point at ourselves. This is how AD DNS servers
* force clients to send updates to the right local DC
*/
- mname = talloc_asprintf(mem_ctx, "%s.%s",
- lpcfg_netbios_name(state->lp), lpcfg_dnsdomain(state->lp));
+ mname = talloc_asprintf(mem_ctx, "%s.%s.",
+ lpcfg_netbios_name(state->lp),
+ lpcfg_dnsdomain(state->lp));
if (mname == NULL) {
return false;
}
return false;
}
+ fqdn = b9_format_fqdn(mem_ctx, rec->data.soa.rname);
+ if (fqdn == NULL) {
+ return false;
+ }
+
state->soa_serial = rec->data.soa.serial;
*data = talloc_asprintf(mem_ctx, "%s %s %u %u %u %u %u",
- mname,
- rec->data.soa.rname,
+ mname, fqdn,
rec->data.soa.serial,
rec->data.soa.refresh,
rec->data.soa.retry,
/*
see if we handle a given zone
*/
+#if DLZ_DLOPEN_VERSION < 3
_PUBLIC_ isc_result_t dlz_findzonedb(void *dbdata, const char *name)
+#else
+_PUBLIC_ isc_result_t dlz_findzonedb(void *dbdata, const char *name,
+ dns_clientinfomethods_t *methods,
+ dns_clientinfo_t *clientinfo)
+#endif
{
struct dlz_bind9_data *state = talloc_get_type_abort(dbdata, struct dlz_bind9_data);
return b9_find_zone_dn(state, name, NULL, NULL);
/*
lookup one record
*/
-#ifdef BIND_VERSION_9_8
+#if DLZ_DLOPEN_VERSION == 1
_PUBLIC_ isc_result_t dlz_lookup(const char *zone, const char *name,
void *dbdata, dns_sdlzlookup_t *lookup)
#else
_PUBLIC_ isc_result_t dlz_allowzonexfr(void *dbdata, const char *name, const char *client)
{
/* just say yes for all our zones for now */
- return dlz_findzonedb(dbdata, name);
+ struct dlz_bind9_data *state = talloc_get_type(
+ dbdata, struct dlz_bind9_data);
+ return b9_find_zone_dn(state, name, NULL, NULL);
}
/*
} else {
name = talloc_asprintf(el_ctx, "%s.%s", rdn, zone);
}
+ name = b9_format_fqdn(el_ctx, name);
if (name == NULL) {
talloc_free(tmp_ctx);
return ISC_R_NOMEMORY;
/*
configure a writeable zone
*/
+#if DLZ_DLOPEN_VERSION < 3
_PUBLIC_ isc_result_t dlz_configure(dns_view_t *view, void *dbdata)
+#else
+_PUBLIC_ isc_result_t dlz_configure(dns_view_t *view, dns_dlzdb_t *dlzdb,
+ void *dbdata)
+#endif
{
struct dlz_bind9_data *state = talloc_get_type_abort(dbdata, struct dlz_bind9_data);
TALLOC_CTX *tmp_ctx;
return ISC_R_NOMEMORY;
}
+#if DLZ_DLOPEN_VERSION < 3
result = state->writeable_zone(view, zone);
+#else
+ result = state->writeable_zone(view, dlzdb, zone);
+#endif
if (result != ISC_R_SUCCESS) {
state->log(ISC_LOG_ERROR, "samba_dlz: Failed to configure zone '%s'",
zone);
cli_credentials_set_krb5_context(server_credentials, state->smb_krb5_ctx);
cli_credentials_set_conf(server_credentials, state->lp);
- keytab_name = talloc_asprintf(tmp_ctx, "file:%s/dns.keytab",
+ keytab_name = talloc_asprintf(tmp_ctx, "FILE:%s/dns.keytab",
lpcfg_private_dir(state->lp));
ret = cli_credentials_set_keytab_name(server_credentials, state->lp, keytab_name,
CRED_SPECIFIED);
return ISC_TRUE;
}
-
-/*
- add a new record
- */
-static isc_result_t b9_add_record(struct dlz_bind9_data *state, const char *name,
- struct ldb_dn *dn,
- struct dnsp_DnssrvRpcRecord *rec)
-{
- struct ldb_message *msg;
- enum ndr_err_code ndr_err;
- struct ldb_val v;
- int ret;
-
- msg = ldb_msg_new(rec);
- if (msg == NULL) {
- return ISC_R_NOMEMORY;
- }
- msg->dn = dn;
- ret = ldb_msg_add_string(msg, "objectClass", "dnsNode");
- if (ret != LDB_SUCCESS) {
- return ISC_R_FAILURE;
- }
-
- ndr_err = ndr_push_struct_blob(&v, rec, rec, (ndr_push_flags_fn_t)ndr_push_dnsp_DnssrvRpcRecord);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- return ISC_R_FAILURE;
- }
- ret = ldb_msg_add_value(msg, "dnsRecord", &v, NULL);
- if (ret != LDB_SUCCESS) {
- return ISC_R_FAILURE;
- }
-
- ret = ldb_add(state->samdb, msg);
- if (ret != LDB_SUCCESS) {
- return ISC_R_FAILURE;
- }
-
- return ISC_R_SUCCESS;
-}
-
/*
see if two DNS names are the same
*/
switch (rec1->wType) {
case DNS_TYPE_A:
return strcmp(rec1->data.ipv4, rec2->data.ipv4) == 0;
- case DNS_TYPE_AAAA:
- inet_pton(AF_INET6, rec1->data.ipv6, &rec1_in_addr6);
- inet_pton(AF_INET6, rec2->data.ipv6, &rec2_in_addr6);
+ case DNS_TYPE_AAAA: {
+ int ret;
+
+ ret = inet_pton(AF_INET6, rec1->data.ipv6, &rec1_in_addr6);
+ if (ret != 1) {
+ return false;
+ }
+ ret = inet_pton(AF_INET6, rec2->data.ipv6, &rec2_in_addr6);
+ if (ret != 1) {
+ return false;
+ }
+
return memcmp(&rec1_in_addr6, &rec2_in_addr6, sizeof(rec1_in_addr6)) == 0;
+ }
case DNS_TYPE_CNAME:
return dns_name_equal(rec1->data.cname, rec2->data.cname);
case DNS_TYPE_TXT:
struct dnsp_DnssrvRpcRecord *rec;
struct ldb_dn *dn;
isc_result_t result;
- struct ldb_result *res;
- const char *attrs[] = { "dnsRecord", NULL };
- int ret, i;
- struct ldb_message_element *el;
+ bool tombstoned = false;
+ bool needs_add = false;
struct dnsp_DnssrvRpcRecord *recs = NULL;
uint16_t num_recs = 0;
- enum ndr_err_code ndr_err;
+ uint16_t first = 0;
+ uint16_t i;
NTTIME t;
WERROR werr;
t /= 3600; /* convert to hours */
rec->rank = DNS_RANK_ZONE;
- rec->dwSerial = state->soa_serial;
rec->dwTimeStamp = (uint32_t)t;
if (!b9_parse(state, rdatastr, rec)) {
}
/* get any existing records */
- ret = ldb_search(state->samdb, rec, &res, dn, LDB_SCOPE_BASE, attrs, "objectClass=dnsNode");
- if (ret == LDB_ERR_NO_SUCH_OBJECT) {
- if (!b9_set_session_info(state, name)) {
- talloc_free(rec);
- return ISC_R_FAILURE;
- }
- result = b9_add_record(state, name, dn, rec);
- b9_reset_session_info(state);
- talloc_free(rec);
- if (result == ISC_R_SUCCESS) {
- state->log(ISC_LOG_INFO, "samba_dlz: added %s %s", name, rdatastr);
- }
- return result;
+ werr = dns_common_lookup(state->samdb, rec, dn,
+ &recs, &num_recs, &tombstoned);
+ if (W_ERROR_EQUAL(werr, WERR_DNS_ERROR_NAME_DOES_NOT_EXIST)) {
+ needs_add = true;
+ werr = WERR_OK;
}
-
- el = ldb_msg_find_element(res->msgs[0], "dnsRecord");
- if (el == NULL) {
- ret = ldb_msg_add_empty(res->msgs[0], "dnsRecord", LDB_FLAG_MOD_ADD, &el);
- if (ret != LDB_SUCCESS) {
- state->log(ISC_LOG_ERROR, "samba_dlz: failed to add dnsRecord for %s",
- ldb_dn_get_linearized(dn));
- talloc_free(rec);
- return ISC_R_FAILURE;
- }
- }
-
- werr = dns_common_extract(el, rec, &recs, &num_recs);
if (!W_ERROR_IS_OK(werr)) {
state->log(ISC_LOG_ERROR, "samba_dlz: failed to parse dnsRecord for %s, %s",
ldb_dn_get_linearized(dn), win_errstr(werr));
return ISC_R_FAILURE;
}
+ if (tombstoned) {
+ /*
+ * we need to keep the existing tombstone record
+ * and ignore it
+ */
+ first = num_recs;
+ }
+
/* there are existing records. We need to see if this will
* replace a record or add to it
*/
- for (i=0; i < num_recs; i++) {
+ for (i=first; i < num_recs; i++) {
if (b9_record_match(state, rec, &recs[i])) {
break;
}
}
- if (i == el->num_values) {
+ if (i == UINT16_MAX) {
+ state->log(ISC_LOG_ERROR, "samba_dlz: failed to already %u dnsRecord values for %s",
+ i, ldb_dn_get_linearized(dn));
+ talloc_free(rec);
+ return ISC_R_FAILURE;
+ }
+
+ if (i == num_recs) {
/* adding a new value */
- el->values = talloc_realloc(el, el->values, struct ldb_val, el->num_values+1);
- if (el->values == NULL) {
+ recs = talloc_realloc(rec, recs,
+ struct dnsp_DnssrvRpcRecord,
+ num_recs + 1);
+ if (recs == NULL) {
talloc_free(rec);
return ISC_R_NOMEMORY;
}
- el->num_values++;
- }
-
- ndr_err = ndr_push_struct_blob(&el->values[i], rec, rec,
- (ndr_push_flags_fn_t)ndr_push_dnsp_DnssrvRpcRecord);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- state->log(ISC_LOG_ERROR, "samba_dlz: failed to push dnsRecord for %s",
- ldb_dn_get_linearized(dn));
- talloc_free(rec);
- return ISC_R_FAILURE;
+ num_recs++;
}
+ recs[i] = *rec;
if (!b9_set_session_info(state, name)) {
talloc_free(rec);
}
/* modify the record */
- el->flags = LDB_FLAG_MOD_REPLACE;
- ret = ldb_modify(state->samdb, res->msgs[0]);
+ werr = dns_common_replace(state->samdb, rec, dn,
+ needs_add,
+ state->soa_serial,
+ recs, num_recs);
b9_reset_session_info(state);
- if (ret != LDB_SUCCESS) {
- state->log(ISC_LOG_ERROR, "samba_dlz: failed to modify %s - %s",
- ldb_dn_get_linearized(dn), ldb_errstring(state->samdb));
+ if (!W_ERROR_IS_OK(werr)) {
+ state->log(ISC_LOG_ERROR, "samba_dlz: failed to %s %s - %s",
+ needs_add ? "add" : "modify",
+ ldb_dn_get_linearized(dn), win_errstr(werr));
talloc_free(rec);
return ISC_R_FAILURE;
}
struct dnsp_DnssrvRpcRecord *rec;
struct ldb_dn *dn;
isc_result_t result;
- struct ldb_result *res;
- const char *attrs[] = { "dnsRecord", NULL };
- int ret, i;
- struct ldb_message_element *el;
struct dnsp_DnssrvRpcRecord *recs = NULL;
uint16_t num_recs = 0;
+ uint16_t i;
WERROR werr;
if (state->transaction_token != (void*)version) {
}
/* get the existing records */
- ret = ldb_search(state->samdb, rec, &res, dn, LDB_SCOPE_BASE, attrs, "objectClass=dnsNode");
- if (ret == LDB_ERR_NO_SUCH_OBJECT) {
- talloc_free(rec);
- return ISC_R_NOTFOUND;
- }
-
- /* there are existing records. We need to see if any match
- */
- el = ldb_msg_find_element(res->msgs[0], "dnsRecord");
- if (el == NULL || el->num_values == 0) {
- state->log(ISC_LOG_ERROR, "samba_dlz: no dnsRecord attribute for %s",
- ldb_dn_get_linearized(dn));
- talloc_free(rec);
- return ISC_R_FAILURE;
- }
-
- werr = dns_common_extract(el, rec, &recs, &num_recs);
+ werr = dns_common_lookup(state->samdb, rec, dn,
+ &recs, &num_recs, NULL);
if (!W_ERROR_IS_OK(werr)) {
- state->log(ISC_LOG_ERROR, "samba_dlz: failed to parse dnsRecord for %s, %s",
- ldb_dn_get_linearized(dn), win_errstr(werr));
talloc_free(rec);
- return ISC_R_FAILURE;
+ return ISC_R_NOTFOUND;
}
for (i=0; i < num_recs; i++) {
if (b9_record_match(state, rec, &recs[i])) {
+ recs[i] = (struct dnsp_DnssrvRpcRecord) {
+ .wType = DNS_TYPE_TOMBSTONE,
+ };
break;
}
}
- if (i == el->num_values) {
+ if (i == num_recs) {
talloc_free(rec);
return ISC_R_NOTFOUND;
}
- if (i < el->num_values-1) {
- memmove(&el->values[i], &el->values[i+1], sizeof(el->values[0])*((el->num_values-1)-i));
- }
- el->num_values--;
-
if (!b9_set_session_info(state, name)) {
talloc_free(rec);
return ISC_R_FAILURE;
}
- if (el->num_values == 0) {
- el->flags = LDB_FLAG_MOD_DELETE;
- } else {
- el->flags = LDB_FLAG_MOD_REPLACE;
- }
- ret = ldb_modify(state->samdb, res->msgs[0]);
-
+ /* modify the record */
+ werr = dns_common_replace(state->samdb, rec, dn,
+ false,/* needs_add */
+ state->soa_serial,
+ recs, num_recs);
b9_reset_session_info(state);
- if (ret != LDB_SUCCESS) {
+ if (!W_ERROR_IS_OK(werr)) {
state->log(ISC_LOG_ERROR, "samba_dlz: failed to modify %s - %s",
- ldb_dn_get_linearized(dn), ldb_errstring(state->samdb));
+ ldb_dn_get_linearized(dn), win_errstr(werr));
talloc_free(rec);
return ISC_R_FAILURE;
}
TALLOC_CTX *tmp_ctx;
struct ldb_dn *dn;
isc_result_t result;
- struct ldb_result *res;
- const char *attrs[] = { "dnsRecord", NULL };
- int ret;
- struct ldb_message_element *el;
- int vi = 0;
enum dns_record_type dns_type;
bool found = false;
struct dnsp_DnssrvRpcRecord *recs = NULL;
}
/* get the existing records */
- ret = ldb_search(state->samdb, tmp_ctx, &res, dn, LDB_SCOPE_BASE, attrs, "objectClass=dnsNode");
- if (ret == LDB_ERR_NO_SUCH_OBJECT) {
- talloc_free(tmp_ctx);
- return ISC_R_NOTFOUND;
- }
-
- /* there are existing records. We need to see if any match the type
- */
- el = ldb_msg_find_element(res->msgs[0], "dnsRecord");
- if (el == NULL || el->num_values == 0) {
- talloc_free(tmp_ctx);
- return ISC_R_NOTFOUND;
- }
-
- werr = dns_common_extract(el, tmp_ctx, &recs, &num_recs);
+ werr = dns_common_lookup(state->samdb, tmp_ctx, dn,
+ &recs, &num_recs, NULL);
if (!W_ERROR_IS_OK(werr)) {
- state->log(ISC_LOG_ERROR, "samba_dlz: failed to parse dnsRecord for %s, %s",
- ldb_dn_get_linearized(dn), win_errstr(werr));
talloc_free(tmp_ctx);
- return ISC_R_FAILURE;
+ return ISC_R_NOTFOUND;
}
for (ri=0; ri < num_recs; ri++) {
if (dns_type != recs[ri].wType) {
- vi += 1;
continue;
}
found = true;
-
- if (vi < el->num_values-1) {
- memmove(&el->values[vi], &el->values[vi+1],
- sizeof(el->values[0])*((el->num_values-1)-vi));
- }
- el->num_values--;
+ recs[ri] = (struct dnsp_DnssrvRpcRecord) {
+ .wType = DNS_TYPE_TOMBSTONE,
+ };
}
if (!found) {
return ISC_R_FAILURE;
}
- if (el->num_values == 0) {
- el->flags = LDB_FLAG_MOD_DELETE;
- } else {
- el->flags = LDB_FLAG_MOD_REPLACE;
- }
- ret = ldb_modify(state->samdb, res->msgs[0]);
-
+ /* modify the record */
+ werr = dns_common_replace(state->samdb, tmp_ctx, dn,
+ false,/* needs_add */
+ state->soa_serial,
+ recs, num_recs);
b9_reset_session_info(state);
- if (ret != LDB_SUCCESS) {
- state->log(ISC_LOG_ERROR, "samba_dlz: failed to delete type %s in %s - %s",
- type, ldb_dn_get_linearized(dn), ldb_errstring(state->samdb));
+ if (!W_ERROR_IS_OK(werr)) {
+ state->log(ISC_LOG_ERROR, "samba_dlz: failed to modify %s - %s",
+ ldb_dn_get_linearized(dn), win_errstr(werr));
talloc_free(tmp_ctx);
return ISC_R_FAILURE;
}
git.samba.org / samba.git / blobdiff