session.c revision 121054
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: head/lib/libsdp/session.c 121054 2003-10-12 22:04:24Z emax $ 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(void) 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 sa.sun_len = sizeof(sa); 120 sa.sun_family = AF_UNIX; 121 strlcpy(sa.sun_path, SDP_UNSOCK_PATH, sizeof(sa.sun_path)); 122 123 if (connect(ss->s, (struct sockaddr *) &sa, sizeof(sa)) < 0) { 124 ss->error = errno; 125 goto fail; 126 } 127 128 ss->flags |= SDP_SESSION_LOCAL; 129 ss->imtu = ss->omtu = SDP_UNSOCK_MTU; 130 131 if ((ss->req = malloc(ss->omtu)) == NULL) { 132 ss->error = ENOMEM; 133 goto fail; 134 } 135 ss->req_e = ss->req + ss->omtu; 136 137 if ((ss->rsp = malloc(ss->imtu)) == NULL) { 138 ss->error = ENOMEM; 139 goto fail; 140 } 141 ss->rsp_e = ss->rsp + ss->imtu; 142 ss->error = 0; 143fail: 144 return ((void *) ss); 145} 146 147int32_t 148sdp_close(void *xss) 149{ 150 sdp_session_p ss = (sdp_session_p) xss; 151 152 if (ss != NULL) { 153 if (ss->s >= 0) 154 close(ss->s); 155 156 if (ss->req != NULL) 157 free(ss->req); 158 if (ss->rsp != NULL) 159 free(ss->rsp); 160 161 memset(ss, 0, sizeof(*ss)); 162 free(ss); 163 } 164 165 return (0); 166} 167 168int32_t 169sdp_error(void *xss) 170{ 171 sdp_session_p ss = (sdp_session_p) xss; 172 173 return ((ss != NULL)? ss->error : EINVAL); 174} 175