summaryrefslogtreecommitdiffabout
path: root/gammu/emb/common/device/bluetoth/bluez.c
blob: e7e8adf7f13e174e6867df3753e230f2b07b5145 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
/* Based on some work from Bluez (www.bluez.org)
 * (C) 2000-2001 Qualcomm Incorporated
 * (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
 * (C) 2002-2004 Marcel Holtmann <marcel@holtmann.org>
 * GNU GPL version 2
 */
/* based on some Marcel Holtmann work from Gnokii (www.gnokii.org)
 * (C) 1999-2000 Hugh Blemings & Pavel Janik ml. (C) 2001-2004 Pawel Kot 
 * GNU GPL version 2 or later
 */

#include "../../gsmstate.h"

#ifdef GSM_ENABLE_BLUETOOTHDEVICE
#ifdef GSM_ENABLE_BLUEZ

#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <unistd.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/rfcomm.h>
#include <bluetooth/sdp.h>
#include <bluetooth/sdp_lib.h>

#include "../../gsmcomon.h"
#include "../devfunc.h"
#include "bluetoth.h"

GSM_Error bluetooth_connect(GSM_StateMachine *s, int port, char *device)
{
	GSM_Device_BlueToothData 	*d = &s->Device.Data.BlueTooth;
	struct sockaddr_rc 		laddr, raddr;
	bdaddr_t			bdaddr;
	int 				fd;

	smprintf(s, "Connecting to RF channel %i\n",port);

	fd = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
	if (fd < 0) {
		dbgprintf("Can't create socket\n");
		return ERR_DEVICENODRIVER;
	}

	bacpy(&laddr.rc_bdaddr, BDADDR_ANY);
	laddr.rc_family 	= AF_BLUETOOTH;
	laddr.rc_channel 	= 0;

	if (bind(fd, (struct sockaddr *)&laddr, sizeof(laddr)) < 0) {
		dbgprintf("Can't bind socket\n");
		close(fd);
		return ERR_DEVICEOPENERROR;
	}

	str2ba(device, &bdaddr);
	bacpy(&raddr.rc_bdaddr, &bdaddr);
	raddr.rc_family 	= AF_BLUETOOTH;
	raddr.rc_channel 	= port;

	if (connect(fd, (struct sockaddr *)&raddr, sizeof(raddr)) < 0) {
		dbgprintf("Can't connect\n");
		close(fd);
		return ERR_DEVICEOPENERROR;
	}

	d->hPhone = fd;
    	return ERR_NONE;
}

#ifdef BLUETOOTH_RF_SEARCHING

struct search_context {
	char				*svc;
	uuid_t				group;
	int				tree;
	uint32_t			handle;
};

static void print_service_desc(void *value, void *user) 
{ 
	sdp_data_t 	*p = (sdp_data_t *)value; 
	int 		i = 0, proto = 0, *channel = (int *)user; 

	for (; p; p = p->next, i++) { 
		switch (p->dtd) { 
		case SDP_UUID16:
		case SDP_UUID32:
		case SDP_UUID128:
			proto = sdp_uuid_to_proto(&p->val.uuid);
			break;
		case SDP_UINT8: 
			if (proto == RFCOMM_UUID) {
				(*channel) = p->val.uint8;
				return;
			}
			break; 
		} 
	} 
}

void print_access_protos(value, user)
{
	sdp_list_t 	*protDescSeq = (sdp_list_t *)value;
	int		*channel = (int *)user;
	
	sdp_list_foreach(protDescSeq,print_service_desc,channel);
}

static GSM_Error bluetooth_checkdevice(GSM_StateMachine *s, bdaddr_t *bdaddr, struct search_context *context)
{
	sdp_session_t			*sess;
	sdp_record_t 			*rec;
	sdp_list_t			*attrid, *search, *seq, *next, *proto = 0;
	sdp_data_t			*d;
	bdaddr_t			interface;
	uint32_t			range = 0x0000ffff;
	struct search_context 		subcontext;
	char				str[20];
	int				channel,channel2;

	bacpy(&interface,BDADDR_ANY);

	ba2str(bdaddr, str);
	smprintf(s,"%s\n", str);

	sess = sdp_connect(&interface, bdaddr, SDP_RETRY_IF_BUSY);
	if (!sess) {
		dbgprintf("Failed to connect to SDP server on %s: %s\n", str, strerror(errno));
		return ERR_UNKNOWN;
	}

	attrid = sdp_list_append(0, &range);
	search = sdp_list_append(0, &context->group);
	if (sdp_service_search_attr_req(sess, search, SDP_ATTR_REQ_RANGE, attrid, &seq)) {
		dbgprintf("Service Search failed: %s\n", strerror(errno));
		sdp_close(sess);
		return ERR_UNKNOWN;
	}
	sdp_list_free(attrid, 0);
	sdp_list_free(search, 0);

	channel2 = -1;
	for (; seq; seq = next) {
		rec 	= (sdp_record_t *) seq->data;
		
		if (channel2 == -1) {		
			if (!context->tree) {
				d = sdp_data_get(rec,SDP_ATTR_SVCNAME_PRIMARY);
			
				if (sdp_get_access_protos(rec,&proto) == 0) {
					channel = -1;
					sdp_list_foreach(proto,print_access_protos,&channel);
					sdp_list_free(proto,(sdp_free_func_t)sdp_data_free);
				}
				smprintf(s,"Channel %i",channel);
				if (d) smprintf(s," - \"%s\"",d->val.str);
				smprintf(s,"\n");
				if (channel2 == -1 && bluetooth_checkservicename(s, d->val.str) == ERR_NONE) {
					channel2 = channel;			
				}			
			}
    			if (sdp_get_group_id(rec,&subcontext.group) != -1) {
				memcpy(&subcontext, context, sizeof(struct search_context));
				if (subcontext.group.value.uuid16 != context->group.value.uuid16) bluetooth_checkdevice(s,bdaddr,&subcontext);
			}
		}

		next = seq->next;
		free(seq);
		sdp_record_free(rec);
	}
	sdp_close(sess);
	
	if (channel2 != -1) return bluetooth_connect(s, channel2, str);
	
	return ERR_NOTSUPPORTED;
}

GSM_Error bluetooth_findchannel(GSM_StateMachine *s)
{
	inquiry_info			ii[20];
	uint8_t				count = 0;
	int				i;
	struct search_context 		context;
	GSM_Error			error = ERR_NOTSUPPORTED;

	memset(&context, '\0', sizeof(struct search_context));
	sdp_uuid16_create(&(context.group),PUBLIC_BROWSE_GROUP);

	if (!strcmp(s->CurrentConfig->Device,"/dev/ttyS1")) {
		dbgprintf("Searching for devices\n");
		if (sdp_general_inquiry(ii, 20, 8, &count) < 0) {
			return ERR_UNKNOWN;
		}
	} else {
		count = 1;
		str2ba(s->CurrentConfig->Device,&ii[0].bdaddr);
	}
	for (i=0;i<count;i++) {
		error = bluetooth_checkdevice(s,&ii[i].bdaddr,&context);
		if (error == ERR_NONE) return error;
	}
	return error;
}

#endif
#endif
#endif

/* How should editor hadle tabs in this file? Add editor commands here.
 * vim: noexpandtab sw=8 ts=8 sts=8:
 */