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
41 void *
sdp_open(bdaddr_t const * l,bdaddr_t const * r)42 sdp_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;
100 fail:
101 return ((void *) ss);
102 }
103
104 void *
sdp_open_local(char const * control)105 sdp_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;
146 fail:
147 return ((void *) ss);
148 }
149
150 int32_t
sdp_close(void * xss)151 sdp_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
171 int32_t
sdp_error(void * xss)172 sdp_error(void *xss)
173 {
174 sdp_session_p ss = (sdp_session_p) xss;
175
176 return ((ss != NULL)? ss->error : EINVAL);
177 }
178