Add the dund utility

1 files changed, 146 insertions, 0 deletions

diff --git a/dund/sdp.c b/dund/sdp.c
new file mode 100644
index 00000000..9cac4efa
--- /dev/null
+++ b/dund/sdp.c
@@ -0,0 +1,146 @@
+/*
+  dund - Bluetooth LAN/DUN daemon for BlueZ
+  Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+	
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License, version 2, as
+  published by the Free Software Foundation.
+
+  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, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+*/
+
+/*
+ * $Id$
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/sdp.h>
+#include <bluetooth/sdp_lib.h>
+
+#include "dund.h"
+
+static sdp_record_t  *record;
+static sdp_session_t *session;
+
+void dun_sdp_unregister(void) 
+{
+	if (record && sdp_record_unregister(session, record))
+		syslog(LOG_ERR, "Service record unregistration failed.");
+	sdp_close(session);
+}
+
+int dun_sdp_register(uint8_t channel)
+{
+	sdp_list_t *svclass, *pfseq, *apseq, *root, *aproto;
+	uuid_t root_uuid, l2cap, rfcomm, dun;
+	sdp_profile_desc_t profile[1];
+	sdp_list_t *proto[2];
+	int status;
+
+	session = sdp_connect(BDADDR_ANY, BDADDR_LOCAL, 0);
+	if (!session) {
+		syslog(LOG_ERR, "Failed to connect to the local SDP server. %s(%d)", 
+				strerror(errno), errno);
+		return -1;
+	}
+
+	record = sdp_record_alloc();
+	if (!record) {
+		syslog(LOG_ERR, "Failed to alloc service record");
+		return -1;
+	}
+
+	sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
+	root = sdp_list_append(NULL, &root_uuid);
+	sdp_set_browse_groups(record, root);
+
+	sdp_uuid16_create(&l2cap, L2CAP_UUID);
+	proto[0] = sdp_list_append(NULL, &l2cap);
+	apseq    = sdp_list_append(NULL, proto[0]);
+
+	sdp_uuid16_create(&rfcomm, RFCOMM_UUID);
+	proto[1] = sdp_list_append(NULL, &rfcomm);
+	proto[1] = sdp_list_append(proto[1], sdp_data_alloc(SDP_UINT8, &channel));
+	apseq    = sdp_list_append(apseq, proto[1]);
+
+	aproto   = sdp_list_append(NULL, apseq);
+	sdp_set_access_protos(record, aproto);
+
+	sdp_uuid16_create(&dun, LAN_ACCESS_SVCLASS_ID);
+	svclass = sdp_list_append(NULL, &dun);
+	sdp_set_service_classes(record, svclass);
+
+	sdp_uuid16_create(&profile[0].uuid, LAN_ACCESS_PROFILE_ID);
+	profile[0].version = 0x0100;
+	pfseq = sdp_list_append(NULL, &profile[0]);
+	sdp_set_profile_descs(record, pfseq);
+		
+	sdp_set_info_attr(record, "LAN Access Point", NULL, NULL);
+
+	status = sdp_record_register(session, record, 0);
+	if (status) {
+		syslog(LOG_ERR, "SDP registration failed.");
+		sdp_record_free(record); record = NULL;
+		return -1;
+	}
+	return 0;
+}
+
+int dun_sdp_search(bdaddr_t *src, bdaddr_t *dst, int *channel)
+{
+	sdp_session_t *s;
+	sdp_list_t *srch, *attrs, *rsp;
+	uuid_t svclass;
+	uint16_t attr;
+	int err;
+
+	s = sdp_connect(src, dst, 0);
+	if (!s) {
+		syslog(LOG_ERR, "Failed to connect to the SDP server. %s(%d)", 
+				strerror(errno), errno);
+		return -1;
+	}
+
+	sdp_uuid16_create(&svclass, LAN_ACCESS_SVCLASS_ID);
+	srch  = sdp_list_append(NULL, &svclass);
+
+	attr  = SDP_ATTR_PROTO_DESC_LIST;
+	attrs = sdp_list_append(NULL, &attr);
+
+	err = sdp_service_search_attr_req(s, srch, SDP_ATTR_REQ_INDIVIDUAL, attrs, &rsp);
+
+	sdp_close(s);
+	
+	if (err)
+		return 0;
+
+	for(; rsp; rsp = rsp->next) {
+		sdp_record_t *rec = (sdp_record_t *) rsp->data;
+		sdp_list_t *protos;
+
+		if (!sdp_get_access_protos(rec, &protos)) {
+			int ch = sdp_get_proto_port(protos, RFCOMM_UUID);
+			if (ch > 0) {
+				*channel = ch;
+				return 1;
+			}
+		}
+	}
+
+	return 0;
+}