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 * 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 * 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 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 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