#include "dsdb/common/util.h"
#include "auth/session.h"
#include "lib/util/dlinklist.h"
+#include "lib/util/tevent_werror.h"
+#include "auth/auth.h"
+#include "auth/credentials/credentials.h"
+#include "librpc/gen_ndr/ndr_irpc.h"
+#include "lib/messaging/irpc.h"
+#include "libds/common/roles.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_DNS
+
+NTSTATUS server_service_dns_init(void);
/* hold information about one dns socket */
struct dns_socket {
dns_tcp_terminate_connection(dnsconn, "dns_tcp_send: called");
}
-static NTSTATUS dns_process(struct dns_server *dns,
- TALLOC_CTX *mem_ctx,
- DATA_BLOB *in,
- DATA_BLOB *out)
+struct dns_process_state {
+ DATA_BLOB *in;
+ struct dns_server *dns;
+ struct dns_name_packet in_packet;
+ struct dns_request_state state;
+ uint16_t dns_err;
+ struct dns_name_packet out_packet;
+ DATA_BLOB out;
+};
+
+static void dns_process_done(struct tevent_req *subreq);
+
+static struct tevent_req *dns_process_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct dns_server *dns,
+ DATA_BLOB *in)
{
+ struct tevent_req *req, *subreq;
+ struct dns_process_state *state;
enum ndr_err_code ndr_err;
WERROR ret;
- struct dns_name_packet *in_packet;
- struct dns_name_packet *out_packet;
- struct dns_res_rec *answers = NULL, *nsrecs = NULL, *additional = NULL;
- uint16_t num_answers = 0 , num_nsrecs = 0, num_additional = 0;
-
- if (in->length < 12) {
- return NT_STATUS_INVALID_PARAMETER;
+ const char *forwarder = lpcfg_dns_forwarder(dns->task->lp_ctx);
+ req = tevent_req_create(mem_ctx, &state, struct dns_process_state);
+ if (req == NULL) {
+ return NULL;
}
+ state->state.mem_ctx = state;
+ state->in = in;
- in_packet = talloc_zero(mem_ctx, struct dns_name_packet);
- /* TODO: We don't really need an out_packet. */
- out_packet = talloc_zero(mem_ctx, struct dns_name_packet);
+ state->dns = dns;
- if (in_packet == NULL) return NT_STATUS_NO_MEMORY;
- if (out_packet == NULL) return NT_STATUS_NO_MEMORY;
+ if (in->length < 12) {
+ tevent_req_werror(req, WERR_INVALID_PARAM);
+ return tevent_req_post(req, ev);
+ }
+ dump_data_dbgc(DBGC_DNS, 8, in->data, in->length);
- dump_data(2, in->data, in->length);
+ ndr_err = ndr_pull_struct_blob(
+ in, state, &state->in_packet,
+ (ndr_pull_flags_fn_t)ndr_pull_dns_name_packet);
- ndr_err = ndr_pull_struct_blob(in, in_packet, in_packet,
- (ndr_pull_flags_fn_t)ndr_pull_dns_name_packet);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- TALLOC_FREE(in_packet);
- DEBUG(0, ("Failed to parse packet %d!\n", ndr_err));
- *out = *in;
+ state->dns_err = DNS_RCODE_FORMERR;
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+ }
+ if (DEBUGLVLC(DBGC_DNS, 8)) {
+ NDR_PRINT_DEBUGC(DBGC_DNS, dns_name_packet, &state->in_packet);
+ }
- out->data[2] |= 0x80; /* Toggle DNS_FLAG_REPLY */
- out->data[3] |= DNS_RCODE_FORMERR;
+ ret = dns_verify_tsig(dns, state, &state->state, &state->in_packet, in);
+ if (!W_ERROR_IS_OK(ret)) {
+ DEBUG(1, ("Failed to verify TSIG!\n"));
+ state->dns_err = werr_to_dns_err(ret);
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+ }
- return NT_STATUS_OK;
+ if (state->in_packet.operation & DNS_FLAG_REPLY) {
+ DEBUG(1, ("Won't reply to replies.\n"));
+ tevent_req_werror(req, WERR_INVALID_PARAM);
+ return tevent_req_post(req, ev);
}
- NDR_PRINT_DEBUG(dns_name_packet, in_packet);
- *out_packet = *in_packet;
- out_packet->operation |= DNS_FLAG_REPLY;
+ state->state.flags = state->in_packet.operation;
+ state->state.flags |= DNS_FLAG_REPLY;
- switch (in_packet->operation & DNS_OPCODE) {
- case DNS_OPCODE_QUERY:
+
+ if (forwarder && *forwarder) {
+ state->state.flags |= DNS_FLAG_RECURSION_AVAIL;
+ }
- ret = dns_server_process_query(dns, out_packet, in_packet,
- &answers, &num_answers,
- &nsrecs, &num_nsrecs,
- &additional, &num_additional);
+ state->out_packet = state->in_packet;
- break;
- case DNS_OPCODE_REGISTER:
- ret = dns_server_process_update(dns, out_packet, in_packet,
- answers, num_answers,
- &nsrecs, &num_nsrecs,
- &additional, &num_additional);
+ switch (state->in_packet.operation & DNS_OPCODE) {
+ case DNS_OPCODE_QUERY:
+ subreq = dns_server_process_query_send(
+ state, ev, dns, &state->state, &state->in_packet);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, dns_process_done, req);
+ return req;
+ case DNS_OPCODE_UPDATE:
+ ret = dns_server_process_update(
+ dns, &state->state, state, &state->in_packet,
+ &state->out_packet.answers, &state->out_packet.ancount,
+ &state->out_packet.nsrecs, &state->out_packet.nscount,
+ &state->out_packet.additional,
+ &state->out_packet.arcount);
break;
default:
ret = WERR_DNS_ERROR_RCODE_NOT_IMPLEMENTED;
- break;
}
+ if (!W_ERROR_IS_OK(ret)) {
+ state->dns_err = werr_to_dns_err(ret);
+ }
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+}
- if (W_ERROR_IS_OK(ret)) {
- out_packet->ancount = num_answers;
- out_packet->answers = answers;
+static void dns_process_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct dns_process_state *state = tevent_req_data(
+ req, struct dns_process_state);
+ WERROR ret;
- out_packet->nscount = num_nsrecs;
- out_packet->nsrecs = nsrecs;
+ ret = dns_server_process_query_recv(
+ subreq, state,
+ &state->out_packet.answers, &state->out_packet.ancount,
+ &state->out_packet.nsrecs, &state->out_packet.nscount,
+ &state->out_packet.additional, &state->out_packet.arcount);
+ TALLOC_FREE(subreq);
- out_packet->arcount = num_additional;
- out_packet->additional = additional;
- } else {
- out_packet->operation |= werr_to_dns_err(ret);
+ if (!W_ERROR_IS_OK(ret)) {
+ state->dns_err = werr_to_dns_err(ret);
}
+ tevent_req_done(req);
+}
- NDR_PRINT_DEBUG(dns_name_packet, out_packet);
- ndr_err = ndr_push_struct_blob(out, out_packet, out_packet,
- (ndr_push_flags_fn_t)ndr_push_dns_name_packet);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- TALLOC_FREE(in_packet);
- TALLOC_FREE(out_packet);
- DEBUG(0, ("Failed to push packet %d!\n", ndr_err));
- *out = *in;
+static WERROR dns_process_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+ DATA_BLOB *out)
+{
+ struct dns_process_state *state = tevent_req_data(
+ req, struct dns_process_state);
+ enum ndr_err_code ndr_err;
+ WERROR ret;
- out->data[2] |= 0x80; /* Toggle DNS_FLAG_REPLY */
- out->data[3] |= DNS_RCODE_SERVFAIL;
+ if (tevent_req_is_werror(req, &ret)) {
+ return ret;
+ }
+ if ((state->dns_err != DNS_RCODE_OK) &&
+ (state->dns_err != DNS_RCODE_NXDOMAIN)) {
+ goto drop;
+ }
+ if (state->dns_err != DNS_RCODE_OK) {
+ state->out_packet.operation |= state->dns_err;
+ }
+ state->out_packet.operation |= state->state.flags;
- return NT_STATUS_OK;
+ if (state->state.sign) {
+ ret = dns_sign_tsig(state->dns, mem_ctx, &state->state,
+ &state->out_packet, 0);
+ if (!W_ERROR_IS_OK(ret)) {
+ state->dns_err = DNS_RCODE_SERVFAIL;
+ goto drop;
+ }
}
- dump_data(2, out->data, out->length);
- return NT_STATUS_OK;
+ if (DEBUGLVLC(DBGC_DNS, 8)) {
+ NDR_PRINT_DEBUGC(DBGC_DNS, dns_name_packet, &state->out_packet);
+ }
+
+ ndr_err = ndr_push_struct_blob(
+ out, mem_ctx, &state->out_packet,
+ (ndr_push_flags_fn_t)ndr_push_dns_name_packet);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(1, ("Failed to push packet: %s!\n",
+ ndr_errstr(ndr_err)));
+ state->dns_err = DNS_RCODE_SERVFAIL;
+ goto drop;
+ }
+ return WERR_OK;
+
+drop:
+ *out = data_blob_talloc(mem_ctx, state->in->data, state->in->length);
+ if (out->data == NULL) {
+ return WERR_NOMEM;
+ }
+ out->data[2] |= 0x80; /* Toggle DNS_FLAG_REPLY */
+ out->data[3] |= state->dns_err;
+ return WERR_OK;
}
struct dns_tcp_call {
struct iovec out_iov[2];
};
+static void dns_tcp_call_process_done(struct tevent_req *subreq);
static void dns_tcp_call_writev_done(struct tevent_req *subreq);
static void dns_tcp_call_loop(struct tevent_req *subreq)
{
struct dns_tcp_connection *dns_conn = tevent_req_callback_data(subreq,
struct dns_tcp_connection);
+ struct dns_server *dns = dns_conn->dns_socket->dns;
struct dns_tcp_call *call;
NTSTATUS status;
return;
}
- DEBUG(10,("Received krb5 TCP packet of length %lu from %s\n",
+ DEBUG(10,("Received DNS TCP packet of length %lu from %s\n",
(long) call->in.length,
tsocket_address_string(dns_conn->conn->remote_address, call)));
/* skip length header */
- call->in.data +=4;
- call->in.length -= 4;
+ call->in.data += 2;
+ call->in.length -= 2;
- /* Call dns */
- status = dns_process(dns_conn->dns_socket->dns, call, &call->in, &call->out);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("dns_process returned %s\n", nt_errstr(status)));
+ subreq = dns_process_send(call, dns->task->event_ctx, dns,
+ &call->in);
+ if (subreq == NULL) {
+ dns_tcp_terminate_connection(
+ dns_conn, "dns_tcp_call_loop: dns_process_send "
+ "failed\n");
+ return;
+ }
+ tevent_req_set_callback(subreq, dns_tcp_call_process_done, call);
+
+ /*
+ * The dns tcp pdu's has the length as 2 byte (initial_read_size),
+ * packet_full_request_u16 provides the pdu length then.
+ */
+ subreq = tstream_read_pdu_blob_send(dns_conn,
+ dns_conn->conn->event.ctx,
+ dns_conn->tstream,
+ 2, /* initial_read_size */
+ packet_full_request_u16,
+ dns_conn);
+ if (subreq == NULL) {
+ dns_tcp_terminate_connection(dns_conn, "dns_tcp_call_loop: "
+ "no memory for tstream_read_pdu_blob_send");
+ return;
+ }
+ tevent_req_set_callback(subreq, dns_tcp_call_loop, dns_conn);
+}
+
+static void dns_tcp_call_process_done(struct tevent_req *subreq)
+{
+ struct dns_tcp_call *call = tevent_req_callback_data(subreq,
+ struct dns_tcp_call);
+ struct dns_tcp_connection *dns_conn = call->dns_conn;
+ WERROR err;
+
+ err = dns_process_recv(subreq, call, &call->out);
+ TALLOC_FREE(subreq);
+ if (!W_ERROR_IS_OK(err)) {
+ DEBUG(1, ("dns_process returned %s\n", win_errstr(err)));
dns_tcp_terminate_connection(dns_conn,
"dns_tcp_call_loop: process function failed");
return;
}
/* First add the length of the out buffer */
- RSIVAL(call->out_hdr, 0, call->out.length);
+ RSSVAL(call->out_hdr, 0, call->out.length);
call->out_iov[0].iov_base = (char *) call->out_hdr;
- call->out_iov[0].iov_len = 4;
+ call->out_iov[0].iov_len = 2;
call->out_iov[1].iov_base = (char *) call->out.data;
call->out_iov[1].iov_len = call->out.length;
return;
}
tevent_req_set_callback(subreq, dns_tcp_call_writev_done, call);
-
- /*
- * The krb5 tcp pdu's has the length as 4 byte (initial_read_size),
- * packet_full_request_u32 provides the pdu length then.
- */
- subreq = tstream_read_pdu_blob_send(dns_conn,
- dns_conn->conn->event.ctx,
- dns_conn->tstream,
- 4, /* initial_read_size */
- packet_full_request_u32,
- dns_conn);
- if (subreq == NULL) {
- dns_tcp_terminate_connection(dns_conn, "dns_tcp_call_loop: "
- "no memory for tstream_read_pdu_blob_send");
- return;
- }
- tevent_req_set_callback(subreq, dns_tcp_call_loop, dns_conn);
}
static void dns_tcp_call_writev_done(struct tevent_req *subreq)
conn->private_data = dns_conn;
/*
- * The krb5 tcp pdu's has the length as 4 byte (initial_read_size),
- * packet_full_request_u32 provides the pdu length then.
+ * The dns tcp pdu's has the length as 2 byte (initial_read_size),
+ * packet_full_request_u16 provides the pdu length then.
*/
subreq = tstream_read_pdu_blob_send(dns_conn,
dns_conn->conn->event.ctx,
dns_conn->tstream,
- 4, /* initial_read_size */
- packet_full_request_u32,
+ 2, /* initial_read_size */
+ packet_full_request_u16,
dns_conn);
if (subreq == NULL) {
dns_tcp_terminate_connection(dns_conn, "dns_tcp_accept: "
};
struct dns_udp_call {
+ struct dns_udp_socket *sock;
struct tsocket_address *src;
DATA_BLOB in;
DATA_BLOB out;
};
+static void dns_udp_call_process_done(struct tevent_req *subreq);
static void dns_udp_call_sendto_done(struct tevent_req *subreq);
static void dns_udp_call_loop(struct tevent_req *subreq)
{
struct dns_udp_socket *sock = tevent_req_callback_data(subreq,
struct dns_udp_socket);
+ struct dns_server *dns = sock->dns_socket->dns;
struct dns_udp_call *call;
uint8_t *buf;
ssize_t len;
int sys_errno;
- NTSTATUS status;
call = talloc(sock, struct dns_udp_call);
if (call == NULL) {
talloc_free(call);
goto done;
}
+ call->sock = sock;
len = tdgram_recvfrom_recv(subreq, &sys_errno,
call, &buf, &call->src);
call->in.data = buf;
call->in.length = len;
- DEBUG(10,("Received krb5 UDP packet of length %lu from %s\n",
+ DEBUG(10,("Received DNS UDP packet of length %lu from %s\n",
(long)call->in.length,
tsocket_address_string(call->src, call)));
- /* Call krb5 */
- status = dns_process(sock->dns_socket->dns, call, &call->in, &call->out);
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(call);
- DEBUG(0, ("dns_process returned %s\n", nt_errstr(status)));
- goto done;
- }
-
- subreq = tdgram_sendto_queue_send(call,
- sock->dns_socket->dns->task->event_ctx,
- sock->dgram,
- sock->send_queue,
- call->out.data,
- call->out.length,
- call->src);
+ subreq = dns_process_send(call, dns->task->event_ctx, dns,
+ &call->in);
if (subreq == NULL) {
- talloc_free(call);
+ TALLOC_FREE(call);
goto done;
}
- tevent_req_set_callback(subreq, dns_udp_call_sendto_done, call);
+ tevent_req_set_callback(subreq, dns_udp_call_process_done, call);
done:
subreq = tdgram_recvfrom_send(sock,
tevent_req_set_callback(subreq, dns_udp_call_loop, sock);
}
+static void dns_udp_call_process_done(struct tevent_req *subreq)
+{
+ struct dns_udp_call *call = tevent_req_callback_data(
+ subreq, struct dns_udp_call);
+ struct dns_udp_socket *sock = call->sock;
+ struct dns_server *dns = sock->dns_socket->dns;
+ WERROR err;
+
+ err = dns_process_recv(subreq, call, &call->out);
+ TALLOC_FREE(subreq);
+ if (!W_ERROR_IS_OK(err)) {
+ DEBUG(1, ("dns_process returned %s\n", win_errstr(err)));
+ TALLOC_FREE(call);
+ return;
+ }
+
+ subreq = tdgram_sendto_queue_send(call,
+ dns->task->event_ctx,
+ sock->dgram,
+ sock->send_queue,
+ call->out.data,
+ call->out.length,
+ call->src);
+ if (subreq == NULL) {
+ talloc_free(call);
+ return;
+ }
+ tevent_req_set_callback(subreq, dns_udp_call_sendto_done, call);
+
+}
static void dns_udp_call_sendto_done(struct tevent_req *subreq)
{
struct dns_udp_call *call = tevent_req_callback_data(subreq,
struct dns_udp_call);
- ssize_t ret;
int sys_errno;
- ret = tdgram_sendto_queue_recv(subreq, &sys_errno);
+ tdgram_sendto_queue_recv(subreq, &sys_errno);
/* We don't care about errors */
address, port,
&dns_socket->local_address);
if (ret != 0) {
- status = map_nt_error_from_unix(errno);
+ status = map_nt_error_from_unix_common(errno);
return status;
}
- status = stream_setup_socket(dns->task->event_ctx,
+ status = stream_setup_socket(dns->task,
+ dns->task->event_ctx,
dns->task->lp_ctx,
model_ops,
&dns_tcp_stream_ops,
dns_udp_socket,
&dns_udp_socket->dgram);
if (ret != 0) {
- status = map_nt_error_from_unix(errno);
+ status = map_nt_error_from_unix_common(errno);
DEBUG(0,("Failed to bind to %s:%u UDP - %s\n",
address, port, nt_errstr(status)));
return status;
/*
setup our listening sockets on the configured network interfaces
*/
-static NTSTATUS dns_startup_interfaces(struct dns_server *dns, struct loadparm_context *lp_ctx,
+static NTSTATUS dns_startup_interfaces(struct dns_server *dns,
struct interface *ifaces)
{
const struct model_ops *model_ops;
/* within the dns task we want to be a single process, so
ask for the single process model ops and pass these to the
stream_setup_socket() call. */
- model_ops = process_model_startup(dns->task->event_ctx, "single");
+ model_ops = process_model_startup("single");
if (!model_ops) {
DEBUG(0,("Can't find 'single' process model_ops\n"));
return NT_STATUS_INTERNAL_ERROR;
}
- num_interfaces = iface_count(ifaces);
+ if (ifaces != NULL) {
+ num_interfaces = iface_list_count(ifaces);
- for (i=0; i<num_interfaces; i++) {
- const char *address = talloc_strdup(tmp_ctx, iface_n_ip(ifaces, i));
+ for (i=0; i<num_interfaces; i++) {
+ const char *address = talloc_strdup(tmp_ctx,
+ iface_list_n_ip(ifaces, i));
- status = dns_add_socket(dns, model_ops, "dns", address, DNS_SERVICE_PORT);
- NT_STATUS_NOT_OK_RETURN(status);
+ status = dns_add_socket(dns, model_ops, "dns", address,
+ DNS_SERVICE_PORT);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
+ } else {
+ int num_binds = 0;
+ char **wcard;
+ wcard = iface_list_wildcard(tmp_ctx);
+ if (wcard == NULL) {
+ DEBUG(0, ("No wildcard address available\n"));
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+ for (i = 0; wcard[i] != NULL; i++) {
+ status = dns_add_socket(dns, model_ops, "dns", wcard[i],
+ DNS_SERVICE_PORT);
+ if (NT_STATUS_IS_OK(status)) {
+ num_binds++;
+ }
+ }
+ if (num_binds == 0) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INVALID_PARAMETER_MIX;
+ }
}
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
-static int dns_server_sort_zones(struct ldb_message **m1, struct ldb_message **m2)
+static struct dns_server_tkey_store *tkey_store_init(TALLOC_CTX *mem_ctx,
+ uint16_t size)
{
- const char *n1, *n2;
- size_t l1, l2;
+ struct dns_server_tkey_store *buffer = talloc_zero(mem_ctx,
+ struct dns_server_tkey_store);
- n1 = ldb_msg_find_attr_as_string(*m1, "name", NULL);
- n2 = ldb_msg_find_attr_as_string(*m2, "name", NULL);
+ if (buffer == NULL) {
+ return NULL;
+ }
- l1 = strlen(n1);
- l2 = strlen(n2);
+ buffer->size = size;
+ buffer->next_idx = 0;
- /* If the string lengths are not equal just sort by length */
- if (l1 != l2) {
- /* If m1 is the larger zone name, return it first */
- return l2 - l1;
+ buffer->tkeys = talloc_zero_array(buffer, struct dns_server_tkey *, size);
+ if (buffer->tkeys == NULL) {
+ TALLOC_FREE(buffer);
}
- /*TODO: We need to compare DNs here, we want the DomainDNSZones first */
- return 0;
+ return buffer;
+}
+
+static NTSTATUS dns_server_reload_zones(struct dns_server *dns)
+{
+ NTSTATUS status;
+ struct dns_server_zone *new_list = NULL;
+ struct dns_server_zone *old_list = NULL;
+ struct dns_server_zone *old_zone;
+ status = dns_common_zones(dns->samdb, dns, &new_list);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ dns->zones = new_list;
+ while ((old_zone = DLIST_TAIL(old_list)) != NULL) {
+ DLIST_REMOVE(old_list, old_zone);
+ talloc_free(old_zone);
+ }
+
+ return NT_STATUS_OK;
+}
+
+/**
+ * Called when the internal DNS server should reload the zones from DB, for
+ * example, when zones are added or deleted through RPC or replicated by
+ * inbound DRS.
+ */
+static NTSTATUS dns_reload_zones(struct irpc_message *msg,
+ struct dnssrv_reload_dns_zones *r)
+{
+ struct dns_server *dns;
+
+ dns = talloc_get_type(msg->private_data, struct dns_server);
+ if (dns == NULL) {
+ r->out.result = NT_STATUS_INTERNAL_ERROR;
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ r->out.result = dns_server_reload_zones(dns);
+
+ return NT_STATUS_OK;
}
static void dns_task_init(struct task_server *task)
{
struct dns_server *dns;
NTSTATUS status;
- struct interface *ifaces;
+ struct interface *ifaces = NULL;
int ret;
- struct ldb_result *res;
- struct ldb_dn *rootdn;
- static const char * const attrs[] = { "name", NULL};
- unsigned int i;
+ static const char * const attrs_none[] = { NULL};
+ struct ldb_message *dns_acc;
+ char *hostname_lower;
+ char *dns_spn;
switch (lpcfg_server_role(task->lp_ctx)) {
case ROLE_STANDALONE:
case ROLE_DOMAIN_MEMBER:
task_server_terminate(task, "dns: no DNS required in member server configuration", false);
return;
- case ROLE_DOMAIN_CONTROLLER:
+ case ROLE_ACTIVE_DIRECTORY_DC:
/* Yes, we want a DNS */
break;
}
- load_interfaces(task, lpcfg_interfaces(task->lp_ctx), &ifaces);
+ if (lpcfg_interfaces(task->lp_ctx) && lpcfg_bind_interfaces_only(task->lp_ctx)) {
+ load_interface_list(task, task->lp_ctx, &ifaces);
- if (iface_count(ifaces) == 0) {
- task_server_terminate(task, "dns: no network interfaces configured", false);
- return;
+ if (iface_list_count(ifaces) == 0) {
+ task_server_terminate(task, "dns: no network interfaces configured", false);
+ return;
+ }
}
task_server_set_title(task, "task[dns]");
}
dns->task = task;
+ /*FIXME: Make this a configurable option */
+ dns->max_payload = 4096;
+
+ dns->server_credentials = cli_credentials_init(dns);
+ if (!dns->server_credentials) {
+ task_server_terminate(task, "Failed to init server credentials\n", true);
+ return;
+ }
dns->samdb = samdb_connect(dns, dns->task->event_ctx, dns->task->lp_ctx,
system_session(dns->task->lp_ctx), 0);
return;
}
- rootdn = ldb_dn_new(dns, dns->samdb, "");
- if (rootdn == NULL) {
- task_server_terminate(task, "dns: out of memory", true);
- return;
+ cli_credentials_set_conf(dns->server_credentials, task->lp_ctx);
+
+ hostname_lower = strlower_talloc(dns, lpcfg_netbios_name(task->lp_ctx));
+ dns_spn = talloc_asprintf(dns, "DNS/%s.%s",
+ hostname_lower,
+ lpcfg_dnsdomain(task->lp_ctx));
+ TALLOC_FREE(hostname_lower);
+
+ ret = dsdb_search_one(dns->samdb, dns, &dns_acc,
+ ldb_get_default_basedn(dns->samdb), LDB_SCOPE_SUBTREE,
+ attrs_none, 0, "(servicePrincipalName=%s)",
+ dns_spn);
+ if (ret == LDB_SUCCESS) {
+ TALLOC_FREE(dns_acc);
+ if (!dns_spn) {
+ task_server_terminate(task, "dns: talloc_asprintf failed", true);
+ return;
+ }
+ status = cli_credentials_set_stored_principal(dns->server_credentials, task->lp_ctx, dns_spn);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task,
+ talloc_asprintf(task, "Failed to obtain server credentials for DNS, "
+ "despite finding it in the samdb! %s\n",
+ nt_errstr(status)),
+ true);
+ return;
+ }
+ } else {
+ TALLOC_FREE(dns_spn);
+ status = cli_credentials_set_machine_account(dns->server_credentials, task->lp_ctx);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task,
+ talloc_asprintf(task, "Failed to obtain server credentials, perhaps a standalone server?: %s\n",
+ nt_errstr(status)),
+ true);
+ return;
+ }
}
- // TODO: this search does not work against windows
- ret = dsdb_search(dns->samdb, dns, &res, rootdn, LDB_SCOPE_SUBTREE,
- attrs, DSDB_SEARCH_SEARCH_ALL_PARTITIONS, "(objectClass=dnsZone)");
- if (ret != LDB_SUCCESS) {
- task_server_terminate(task,
- "dns: failed to look up root DNS zones",
- true);
+ dns->tkeys = tkey_store_init(dns, TKEY_BUFFER_SIZE);
+ if (!dns->tkeys) {
+ task_server_terminate(task, "Failed to allocate tkey storage\n", true);
return;
}
- TYPESAFE_QSORT(res->msgs, res->count, dns_server_sort_zones);
-
- for (i=0; i < res->count; i++) {
- struct dns_server_zone *z;
-
- z = talloc_zero(dns, struct dns_server_zone);
- if (z == NULL) {
- }
+ status = dns_server_reload_zones(dns);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task, "dns: failed to load DNS zones", true);
+ return;
+ }
- z->name = ldb_msg_find_attr_as_string(res->msgs[i], "name", NULL);
- z->dn = talloc_move(z, &res->msgs[i]->dn);
+ status = dns_startup_interfaces(dns, ifaces);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task, "dns failed to setup interfaces", true);
+ return;
+ }
- DLIST_ADD_END(dns->zones, z, NULL);
+ /* Setup the IRPC interface and register handlers */
+ status = irpc_add_name(task->msg_ctx, "dnssrv");
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task, "dns: failed to register IRPC name", true);
+ return;
}
- status = dns_startup_interfaces(dns, task->lp_ctx, ifaces);
+ status = IRPC_REGISTER(task->msg_ctx, irpc, DNSSRV_RELOAD_DNS_ZONES,
+ dns_reload_zones, dns);
if (!NT_STATUS_IS_OK(status)) {
- task_server_terminate(task, "dns failed to setup interfaces", true);
+ task_server_terminate(task, "dns: failed to setup reload handler", true);
return;
}
}
git.samba.org / samba.git / blobdiff