Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 642 insertions, 0 deletions

diff --git a/source4/nbt_server/dgram/browse.c b/source4/nbt_server/dgram/browse.c
new file mode 100644
index 0000000..1e4f28b
--- /dev/null
+++ b/source4/nbt_server/dgram/browse.c
@@ -0,0 +1,85 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   NBT datagram browse server
+
+   Copyright (C) Andrew Tridgell	2005
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "nbt_server/nbt_server.h"
+#include "lib/socket/socket.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "nbt_server/dgram/proto.h"
+
+static const char *nbt_browse_opcode_string(enum nbt_browse_opcode r)
+{
+	const char *val = NULL;
+
+	switch (r) {
+		case HostAnnouncement: val = "HostAnnouncement"; break;
+		case AnnouncementRequest: val = "AnnouncementRequest"; break;
+		case Election: val = "Election"; break;
+		case GetBackupListReq: val = "GetBackupListReq"; break;
+		case GetBackupListResp: val = "GetBackupListResp"; break;
+		case BecomeBackup: val = "BecomeBackup"; break;
+		case DomainAnnouncement: val = "DomainAnnouncement"; break;
+		case MasterAnnouncement: val = "MasterAnnouncement"; break;
+		case ResetBrowserState: val = "ResetBrowserState"; break;
+		case LocalMasterAnnouncement: val = "LocalMasterAnnouncement"; break;
+	}
+
+	return val;
+}
+
+/*
+  handle incoming browse mailslot requests
+*/
+void nbtd_mailslot_browse_handler(struct dgram_mailslot_handler *dgmslot, 
+				  struct nbt_dgram_packet *packet, 
+				  struct socket_address *src)
+{
+	struct nbt_browse_packet *browse = talloc(dgmslot, struct nbt_browse_packet);
+	struct nbt_name *name = &packet->data.msg.dest_name;
+	NTSTATUS status;
+
+	if (browse == NULL) {
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto failed;
+	}
+
+	status = dgram_mailslot_browse_parse(dgmslot, browse, packet, browse);
+	if (!NT_STATUS_IS_OK(status)) goto failed;
+
+	DEBUG(4,("Browse %s (Op %d) on '%s' '%s' from %s:%d\n", 
+		nbt_browse_opcode_string(browse->opcode), browse->opcode,
+		nbt_name_string(browse, name), dgmslot->mailslot_name,
+		src->addr, src->port));
+
+	if (DEBUGLEVEL >= 10) {
+		NDR_PRINT_DEBUG(nbt_browse_packet, browse);
+	}
+
+	talloc_free(browse);
+	return;
+
+failed:
+	DEBUG(2,("nbtd browse handler failed from %s:%d to %s - %s\n",
+		 src->addr, src->port, nbt_name_string(browse, name),
+		 nt_errstr(status)));
+	talloc_free(browse);
+
+}
diff --git a/source4/nbt_server/dgram/netlogon.c b/source4/nbt_server/dgram/netlogon.c
new file mode 100644
index 0000000..e9d89e5
--- /dev/null
+++ b/source4/nbt_server/dgram/netlogon.c
@@ -0,0 +1,286 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   NBT datagram netlogon server
+
+   Copyright (C) Andrew Tridgell	2005
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
+  
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "nbt_server/nbt_server.h"
+#include "lib/socket/socket.h"
+#include <ldb.h>
+#include "dsdb/samdb/samdb.h"
+#include "auth/auth.h"
+#include "param/param.h"
+#include "samba/service_task.h"
+#include "dsdb/samdb/ldb_modules/util.h"
+#include "libcli/security/security.h"
+#include "nbt_server/dgram/proto.h"
+#include "libds/common/roles.h"
+
+/*
+  reply to a GETDC request
+ */
+static NTSTATUS nbtd_netlogon_getdc(struct nbtd_server *nbtsrv,
+				    struct nbt_name *dst_name,
+				    struct nbt_netlogon_packet *netlogon,
+				    TALLOC_CTX *mem_ctx,
+				    struct nbt_netlogon_response **presponse,
+				    char **preply_mailslot)
+{
+	struct nbt_netlogon_response_from_pdc *pdc;
+	struct ldb_context *samctx;
+	struct nbt_netlogon_response *response = NULL;
+	char *reply_mailslot = NULL;
+
+	/* only answer getdc requests on the PDC or LOGON names */
+	if ((dst_name->type != NBT_NAME_PDC) &&
+	    (dst_name->type != NBT_NAME_LOGON)) {
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	samctx = nbtsrv->sam_ctx;
+
+	if (lpcfg_server_role(nbtsrv->task->lp_ctx) != ROLE_ACTIVE_DIRECTORY_DC
+	    || !samdb_is_pdc(samctx)) {
+		DEBUG(2, ("Not a PDC, so not processing LOGON_PRIMARY_QUERY\n"));
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	if (strcasecmp_m(dst_name->name,
+			 lpcfg_workgroup(nbtsrv->task->lp_ctx)) != 0) {
+		DBG_INFO("GetDC requested for a domain %s that we don't "
+			 "host\n", dst_name->name);
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	reply_mailslot = talloc_strdup(
+		mem_ctx, netlogon->req.pdc.mailslot_name);
+	if (reply_mailslot == NULL) {
+		goto nomem;
+	}
+
+	/* setup a GETDC reply */
+	response = talloc_zero(mem_ctx, struct nbt_netlogon_response);
+	if (response == NULL) {
+		goto nomem;
+	}
+	response->response_type = NETLOGON_GET_PDC;
+	pdc = &response->data.get_pdc;
+
+	pdc->command = NETLOGON_RESPONSE_FROM_PDC;
+
+	pdc->pdc_name = talloc_strdup(
+		response, lpcfg_netbios_name(nbtsrv->task->lp_ctx));
+	if (pdc->pdc_name == NULL) {
+		goto nomem;
+	}
+
+	pdc->unicode_pdc_name = pdc->pdc_name;
+
+	pdc->domain_name = talloc_strdup(
+		response, lpcfg_workgroup(nbtsrv->task->lp_ctx));
+	if (pdc->domain_name == NULL) {
+		goto nomem;
+	}
+
+	pdc->nt_version       = 1;
+	pdc->lmnt_token       = 0xFFFF;
+	pdc->lm20_token       = 0xFFFF;
+
+	*presponse = response;
+	*preply_mailslot = reply_mailslot;
+	return NT_STATUS_OK;
+
+nomem:
+	TALLOC_FREE(response);
+	TALLOC_FREE(reply_mailslot);
+	return NT_STATUS_NO_MEMORY;
+}
+
+/*
+  reply to a ADS style GETDC request
+ */
+static NTSTATUS nbtd_netlogon_samlogon(
+	struct nbtd_server *nbtsrv,
+	struct nbt_name *dst_name,
+	const struct socket_address *src,
+	struct nbt_netlogon_packet *netlogon,
+	TALLOC_CTX *mem_ctx,
+	struct nbt_netlogon_response **presponse,
+	char **preply_mailslot)
+{
+	struct ldb_context *samctx;
+	struct dom_sid *sid = NULL;
+	struct nbt_netlogon_response *response = NULL;
+	char *reply_mailslot = NULL;
+	NTSTATUS status;
+
+	/* only answer getdc requests on the PDC or LOGON names */
+	if ((dst_name->type != NBT_NAME_PDC) &&
+	    (dst_name->type != NBT_NAME_LOGON)) {
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	samctx = nbtsrv->sam_ctx;
+
+	if (netlogon->req.logon.sid_size != 0) {
+		sid = &netlogon->req.logon.sid;
+	}
+
+	reply_mailslot = talloc_strdup(
+		mem_ctx, netlogon->req.logon.mailslot_name);
+	if (reply_mailslot == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	response = talloc_zero(mem_ctx, struct nbt_netlogon_response);
+	if (response == NULL) {
+		TALLOC_FREE(reply_mailslot);
+		return NT_STATUS_NO_MEMORY;
+	}
+	response->response_type = NETLOGON_SAMLOGON;
+
+	status = fill_netlogon_samlogon_response(
+		samctx, response, NULL, dst_name->name, sid, NULL,
+		netlogon->req.logon.user_name,
+		netlogon->req.logon.acct_control, src->addr,
+		netlogon->req.logon.nt_version, nbtsrv->task->lp_ctx,
+		&response->data.samlogon, false);
+	if (!NT_STATUS_IS_OK(status)) {
+		struct dom_sid_buf buf;
+
+		DBG_NOTICE("NBT netlogon query failed domain=%s sid=%s "
+			   "version=%d - %s\n",
+			   dst_name->name,
+			   dom_sid_str_buf(sid, &buf),
+			   netlogon->req.logon.nt_version,
+			   nt_errstr(status));
+		TALLOC_FREE(reply_mailslot);
+		TALLOC_FREE(response);
+		return status;
+	}
+
+	*presponse = response;
+	*preply_mailslot = reply_mailslot;
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS nbtd_mailslot_netlogon_reply(
+	struct nbtd_interface *iface,
+	struct nbt_dgram_packet *packet,
+	struct socket_address *src,
+	TALLOC_CTX *mem_ctx,
+	struct nbt_netlogon_response **presponse,
+	char **preply_mailslot)
+{
+	struct nbt_netlogon_packet *netlogon;
+	struct nbt_name *dst_name = &packet->data.msg.dest_name;
+	struct nbt_netlogon_response *response = NULL;
+	struct nbtd_iface_name *iname;
+	char *reply_mailslot = NULL;
+	NTSTATUS status;
+
+	/*
+	  see if the we are listening on the destination netbios name
+	*/
+	iname = nbtd_find_iname(iface, dst_name, 0);
+	if (iname == NULL) {
+		return NT_STATUS_BAD_NETWORK_NAME;
+	}
+
+	netlogon = talloc(mem_ctx, struct nbt_netlogon_packet);
+	if (netlogon == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = dgram_mailslot_netlogon_parse_request(netlogon, packet,
+						       netlogon);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto failed;
+	}
+
+	switch (netlogon->command) {
+	case LOGON_PRIMARY_QUERY:
+		status = nbtd_netlogon_getdc(
+			iface->nbtsrv, &packet->data.msg.dest_name,
+			netlogon, mem_ctx, &response, &reply_mailslot);
+		break;
+	case LOGON_SAM_LOGON_REQUEST:
+		status = nbtd_netlogon_samlogon(
+			iface->nbtsrv, &packet->data.msg.dest_name, src,
+			netlogon, mem_ctx, &response, &reply_mailslot);
+		break;
+	default:
+		DEBUG(2,("unknown netlogon op %d from %s:%d\n",
+			 netlogon->command, src->addr, src->port));
+		NDR_PRINT_DEBUG(nbt_netlogon_packet, netlogon);
+		status = NT_STATUS_NOT_SUPPORTED;
+		break;
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		DBG_DEBUG("Calculating reply failed: %s\n",
+			  nt_errstr(status));
+		goto failed;
+	}
+
+	*presponse = response;
+	*preply_mailslot = reply_mailslot;
+	return NT_STATUS_OK;
+
+failed:
+	TALLOC_FREE(reply_mailslot);
+	TALLOC_FREE(netlogon);
+	return status;
+}
+
+/*
+  handle incoming netlogon mailslot requests
+*/
+void nbtd_mailslot_netlogon_handler(struct dgram_mailslot_handler *dgmslot,
+				    struct nbt_dgram_packet *packet,
+				    struct socket_address *src)
+{
+	NTSTATUS status = NT_STATUS_NO_MEMORY;
+	struct nbtd_interface *iface =
+		talloc_get_type(dgmslot->private_data, struct nbtd_interface);
+	struct nbtd_interface *reply_iface = nbtd_find_reply_iface(
+		iface, src->addr, false);
+	struct nbt_netlogon_response *response = NULL;
+	char *reply_mailslot = NULL;
+
+	if (reply_iface->ip_address == NULL) {
+		DBG_WARNING("Could not obtain own IP address for datagram "
+			    "socket\n");
+		return;
+	}
+
+	status = nbtd_mailslot_netlogon_reply(
+		iface, packet, src, dgmslot, &response, &reply_mailslot);
+
+	if (NT_STATUS_IS_OK(status)) {
+		dgram_mailslot_netlogon_reply(
+			reply_iface->dgmsock, packet,
+			lpcfg_netbios_name(iface->nbtsrv->task->lp_ctx),
+			reply_mailslot, response);
+	}
+
+	TALLOC_FREE(response);
+	TALLOC_FREE(reply_mailslot);
+}
diff --git a/source4/nbt_server/dgram/ntlogon.c b/source4/nbt_server/dgram/ntlogon.c
new file mode 100644
index 0000000..8c6a6e9
--- /dev/null
+++ b/source4/nbt_server/dgram/ntlogon.c
@@ -0,0 +1,121 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   NBT datagram ntlogon server
+
+   Copyright (C) Andrew Tridgell	2005
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "nbt_server/nbt_server.h"
+#include "samba/service_task.h"
+#include "lib/socket/socket.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "param/param.h"
+
+/*
+  reply to a SAM LOGON request
+ */
+static void nbtd_ntlogon_sam_logon(struct dgram_mailslot_handler *dgmslot, 
+				   struct nbtd_interface *iface,
+				   struct nbt_dgram_packet *packet,
+				   const struct socket_address *src,
+				   struct nbt_ntlogon_packet *ntlogon)
+{
+	struct nbt_name *name = &packet->data.msg.dest_name;
+	struct nbtd_interface *reply_iface = nbtd_find_reply_iface(iface, src->addr, false);
+	struct nbt_ntlogon_packet reply;
+	struct nbt_ntlogon_sam_logon_reply *logon;
+
+	/* only answer sam logon requests on the PDC or LOGON names */
+	if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
+		return;
+	}
+
+	/* setup a SAM LOGON reply */
+	ZERO_STRUCT(reply);
+	reply.command = NTLOGON_SAM_LOGON_REPLY;
+	logon = &reply.req.reply;
+
+	logon->server           = talloc_asprintf(packet, "\\\\%s", 
+						  lpcfg_netbios_name(iface->nbtsrv->task->lp_ctx));
+	logon->user_name        = ntlogon->req.logon.user_name;
+	logon->domain           = lpcfg_workgroup(iface->nbtsrv->task->lp_ctx);
+	logon->nt_version       = 1;
+	logon->lmnt_token       = 0xFFFF;
+	logon->lm20_token       = 0xFFFF;
+
+	packet->data.msg.dest_name.type = 0;
+
+	dgram_mailslot_ntlogon_reply(reply_iface->dgmsock, 
+				     packet, 
+				     lpcfg_netbios_name(iface->nbtsrv->task->lp_ctx),
+				     ntlogon->req.logon.mailslot_name,
+				     &reply);
+}
+
+/*
+  handle incoming ntlogon mailslot requests
+*/
+void nbtd_mailslot_ntlogon_handler(struct dgram_mailslot_handler *dgmslot, 
+				   struct nbt_dgram_packet *packet, 
+				   struct socket_address *src)
+{
+	NTSTATUS status = NT_STATUS_NO_MEMORY;
+	struct nbtd_interface *iface = 
+		talloc_get_type(dgmslot->private_data, struct nbtd_interface);
+	struct nbt_ntlogon_packet *ntlogon = 
+		talloc(dgmslot, struct nbt_ntlogon_packet);
+	struct nbtd_iface_name *iname;
+	struct nbt_name *name = &packet->data.msg.dest_name;
+
+	if (ntlogon == NULL) goto failed;
+
+	/*
+	  see if the we are listening on the destination netbios name
+	*/
+	iname = nbtd_find_iname(iface, name, 0);
+	if (iname == NULL) {
+		status = NT_STATUS_BAD_NETWORK_NAME;
+		goto failed;
+	}
+
+	DEBUG(2,("ntlogon request to %s from %s:%d\n", 
+		 nbt_name_string(ntlogon, name), src->addr, src->port));
+	status = dgram_mailslot_ntlogon_parse(dgmslot, ntlogon, packet, ntlogon);
+	if (!NT_STATUS_IS_OK(status)) goto failed;
+
+	NDR_PRINT_DEBUG(nbt_ntlogon_packet, ntlogon);
+
+	switch (ntlogon->command) {
+	case NTLOGON_SAM_LOGON:
+		nbtd_ntlogon_sam_logon(dgmslot, iface, packet, src, ntlogon);
+		break;
+	default:
+		DEBUG(2,("unknown ntlogon op %d from %s:%d\n", 
+			 ntlogon->command, src->addr, src->port));
+		break;
+	}
+
+	talloc_free(ntlogon);
+	return;
+
+failed:
+	DEBUG(2,("nbtd ntlogon handler failed from %s:%d to %s - %s\n",
+		 src->addr, src->port, nbt_name_string(ntlogon, name),
+		 nt_errstr(status)));
+	talloc_free(ntlogon);
+}
diff --git a/source4/nbt_server/dgram/request.c b/source4/nbt_server/dgram/request.c
new file mode 100644
index 0000000..ea2b6e8
--- /dev/null
+++ b/source4/nbt_server/dgram/request.c
@@ -0,0 +1,150 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   NBT datagram server
+
+   Copyright (C) Andrew Tridgell	2005
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "nbt_server/nbt_server.h"
+#include "samba/service_task.h"
+#include "lib/socket/socket.h"
+#include "libcli/resolve/resolve.h"
+#include "nbt_server/dgram/proto.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "param/param.h"
+
+/*
+  a list of mailslots that we have static handlers for
+*/
+static const struct {
+	const char *mailslot_name;
+	dgram_mailslot_handler_t handler;
+} mailslot_handlers[] = {
+	/* Handle both NTLOGON and NETLOGON in the same function, as
+	 * they are very similar */
+	{ NBT_MAILSLOT_NETLOGON, nbtd_mailslot_netlogon_handler },
+	{ NBT_MAILSLOT_NTLOGON,  nbtd_mailslot_netlogon_handler },
+	{ NBT_MAILSLOT_BROWSE,   nbtd_mailslot_browse_handler }
+};
+
+/*
+  receive an incoming dgram request. This is used for general datagram
+  requests. Mailslot requests for our listening mailslots
+  are handled in the specific mailslot handlers
+*/
+void dgram_request_handler(struct nbt_dgram_socket *dgmsock, 
+			   struct nbt_dgram_packet *packet,
+			   struct socket_address *src)
+{
+	DEBUG(0,("General datagram request from %s:%d\n", src->addr, src->port));
+	NDR_PRINT_DEBUG(nbt_dgram_packet, packet);
+}
+
+
+/*
+  setup the port 138 datagram listener for a given interface
+*/
+NTSTATUS nbtd_dgram_setup(struct nbtd_interface *iface, const char *bind_address)
+{
+	struct nbt_dgram_socket *bcast_dgmsock = NULL;
+	struct nbtd_server *nbtsrv = iface->nbtsrv;
+	struct socket_address *bcast_addr, *bind_addr;
+	NTSTATUS status;
+	TALLOC_CTX *tmp_ctx = talloc_new(iface);
+	/* the list of mailslots that we are interested in */
+	size_t i;
+
+	if (!tmp_ctx) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (strcmp("0.0.0.0", iface->netmask) != 0) {
+		/* listen for broadcasts on port 138 */
+		bcast_dgmsock = nbt_dgram_socket_init(iface, nbtsrv->task->event_ctx);
+		if (!bcast_dgmsock) {
+			talloc_free(tmp_ctx);
+			return NT_STATUS_NO_MEMORY;
+		}
+	
+		bcast_addr = socket_address_from_strings(tmp_ctx, bcast_dgmsock->sock->backend_name, 
+							 iface->bcast_address, 
+							 lpcfg_dgram_port(iface->nbtsrv->task->lp_ctx));
+		if (!bcast_addr) {
+			talloc_free(tmp_ctx);
+			return NT_STATUS_NO_MEMORY;
+		}
+
+		status = socket_listen(bcast_dgmsock->sock, bcast_addr, 0, 0);
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(tmp_ctx);
+			DEBUG(0,("Failed to bind to %s:%d - %s\n", 
+				 iface->bcast_address, lpcfg_dgram_port(iface->nbtsrv->task->lp_ctx),
+				 nt_errstr(status)));
+			return status;
+		}
+	
+		dgram_set_incoming_handler(bcast_dgmsock, dgram_request_handler, iface);
+	}
+
+	/* listen for unicasts on port 138 */
+	iface->dgmsock = nbt_dgram_socket_init(iface, nbtsrv->task->event_ctx);
+	if (!iface->dgmsock) {
+		talloc_free(tmp_ctx);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	bind_addr = socket_address_from_strings(tmp_ctx, iface->dgmsock->sock->backend_name, 
+						bind_address, lpcfg_dgram_port(iface->nbtsrv->task->lp_ctx));
+	if (!bind_addr) {
+		talloc_free(tmp_ctx);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = socket_listen(iface->dgmsock->sock, bind_addr, 0, 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(tmp_ctx);
+		DEBUG(0,("Failed to bind to %s:%d - %s\n", 
+			 bind_address, lpcfg_dgram_port(iface->nbtsrv->task->lp_ctx), nt_errstr(status)));
+		return status;
+	}
+
+	dgram_set_incoming_handler(iface->dgmsock, dgram_request_handler, iface);
+
+	talloc_free(tmp_ctx);
+
+	for (i=0;i<ARRAY_SIZE(mailslot_handlers);i++) {
+		/* note that we don't need to keep the pointer
+		   to the dgmslot around - the callback is all
+		   we need */
+		struct dgram_mailslot_handler *dgmslot;
+
+		if (bcast_dgmsock) {
+			dgmslot = dgram_mailslot_listen(bcast_dgmsock, 
+						mailslot_handlers[i].mailslot_name,
+						mailslot_handlers[i].handler, iface);
+			NT_STATUS_HAVE_NO_MEMORY(dgmslot);
+		}
+
+		dgmslot = dgram_mailslot_listen(iface->dgmsock, 
+						mailslot_handlers[i].mailslot_name,
+						mailslot_handlers[i].handler, iface);
+		NT_STATUS_HAVE_NO_MEMORY(dgmslot);
+	}
+
+	return NT_STATUS_OK;
+}