1/*
2 * session.c
3 *
4 * Copyright (c) 2001-2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $Id: session.c,v 1.2 2003/09/04 22:12:13 max Exp $
29 * $FreeBSD$
30 */
31
32#include <bluetooth.h>
33#include <errno.h>
34#include <stdlib.h>
35#include <string.h>
36#include <unistd.h>
37
38#include <sdp-int.h>
39#include <sdp.h>
40
41void *
42sdp_open(bdaddr_t const *l, bdaddr_t const *r)
43{
44	sdp_session_p		ss = NULL;
45	struct sockaddr_l2cap	sa;
46	socklen_t		size;
47
48	if ((ss = calloc(1, sizeof(*ss))) == NULL)
49		goto fail;
50
51	if (l == NULL || r == NULL) {
52		ss->error = EINVAL;
53		goto fail;
54	}
55
56	ss->s = socket(PF_BLUETOOTH, SOCK_SEQPACKET, BLUETOOTH_PROTO_L2CAP);
57	if (ss->s < 0) {
58		ss->error = errno;
59		goto fail;
60	}
61
62	sa.l2cap_len = sizeof(sa);
63	sa.l2cap_family = AF_BLUETOOTH;
64	sa.l2cap_psm = 0;
65	memcpy(&sa.l2cap_bdaddr, l, sizeof(sa.l2cap_bdaddr));
66	if (bind(ss->s, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
67		ss->error = errno;
68		goto fail;
69	}
70
71	sa.l2cap_psm = htole16(NG_L2CAP_PSM_SDP);
72	memcpy(&sa.l2cap_bdaddr, r, sizeof(sa.l2cap_bdaddr));
73	if (connect(ss->s, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
74		ss->error = errno;
75		goto fail;
76	}
77
78	size = sizeof(ss->omtu);
79	if (getsockopt(ss->s, SOL_L2CAP, SO_L2CAP_OMTU, &ss->omtu, &size) < 0) {
80		ss->error = errno;
81		goto fail;
82	}
83	if ((ss->req = malloc(ss->omtu)) == NULL) {
84		ss->error = ENOMEM;
85		goto fail;
86	}
87	ss->req_e = ss->req + ss->omtu;
88
89	size = sizeof(ss->imtu);
90	if (getsockopt(ss->s, SOL_L2CAP, SO_L2CAP_IMTU, &ss->imtu, &size) < 0) {
91		ss->error = errno;
92		goto fail;
93	}
94	if ((ss->rsp = malloc(ss->imtu)) == NULL) {
95		ss->error = ENOMEM;
96		goto fail;
97	}
98	ss->rsp_e = ss->rsp + ss->imtu;
99	ss->error = 0;
100fail:
101	return ((void *) ss);
102}
103
104void *
105sdp_open_local(char const *control)
106{
107	sdp_session_p		ss = NULL;
108	struct sockaddr_un	sa;
109
110	if ((ss = calloc(1, sizeof(*ss))) == NULL)
111		goto fail;
112
113	ss->s = socket(PF_UNIX, SOCK_STREAM, 0);
114	if (ss->s < 0) {
115		ss->error = errno;
116		goto fail;
117	}
118
119	if (control == NULL)
120		control = SDP_LOCAL_PATH;
121
122	sa.sun_len = sizeof(sa);
123	sa.sun_family = AF_UNIX;
124	strlcpy(sa.sun_path, control, sizeof(sa.sun_path));
125
126	if (connect(ss->s, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
127		ss->error = errno;
128		goto fail;
129	}
130
131	ss->flags |= SDP_SESSION_LOCAL;
132	ss->imtu = ss->omtu = SDP_LOCAL_MTU;
133
134	if ((ss->req = malloc(ss->omtu)) == NULL) {
135		ss->error = ENOMEM;
136		goto fail;
137	}
138	ss->req_e = ss->req + ss->omtu;
139
140	if ((ss->rsp = malloc(ss->imtu)) == NULL) {
141		ss->error = ENOMEM;
142		goto fail;
143	}
144	ss->rsp_e = ss->rsp + ss->imtu;
145	ss->error = 0;
146fail:
147	return ((void *) ss);
148}
149
150int32_t
151sdp_close(void *xss)
152{
153	sdp_session_p	ss = (sdp_session_p) xss;
154
155	if (ss != NULL) {
156		if (ss->s >= 0)
157			close(ss->s);
158
159		if (ss->req != NULL)
160			free(ss->req);
161		if (ss->rsp != NULL)
162			free(ss->rsp);
163
164		memset(ss, 0, sizeof(*ss));
165		free(ss);
166	}
167
168	return (0);
169}
170
171int32_t
172sdp_error(void *xss)
173{
174	sdp_session_p	ss = (sdp_session_p) xss;
175
176	return ((ss != NULL)? ss->error : EINVAL);
177}
178