session.c revision 124317
1121054Semax/* 2121054Semax * session.c 3121054Semax * 4121054Semax * Copyright (c) 2001-2003 Maksim Yevmenkin <m_evmenkin@yahoo.com> 5121054Semax * All rights reserved. 6121054Semax * 7121054Semax * Redistribution and use in source and binary forms, with or without 8121054Semax * modification, are permitted provided that the following conditions 9121054Semax * are met: 10121054Semax * 1. Redistributions of source code must retain the above copyright 11121054Semax * notice, this list of conditions and the following disclaimer. 12121054Semax * 2. Redistributions in binary form must reproduce the above copyright 13121054Semax * notice, this list of conditions and the following disclaimer in the 14121054Semax * documentation and/or other materials provided with the distribution. 15121054Semax * 16121054Semax * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17121054Semax * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18121054Semax * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19121054Semax * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20121054Semax * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21121054Semax * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22121054Semax * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23121054Semax * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24121054Semax * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25121054Semax * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26121054Semax * SUCH DAMAGE. 27121054Semax * 28121054Semax * $Id: session.c,v 1.2 2003/09/04 22:12:13 max Exp $ 29121054Semax * $FreeBSD: head/lib/libsdp/session.c 124317 2004-01-09 22:44:28Z emax $ 30121054Semax */ 31121054Semax 32121054Semax#include <bluetooth.h> 33121054Semax#include <errno.h> 34121054Semax#include <stdlib.h> 35121054Semax#include <string.h> 36121054Semax#include <unistd.h> 37121054Semax 38121054Semax#include <sdp-int.h> 39121054Semax#include <sdp.h> 40121054Semax 41121054Semaxvoid * 42121054Semaxsdp_open(bdaddr_t const *l, bdaddr_t const *r) 43121054Semax{ 44121054Semax sdp_session_p ss = NULL; 45121054Semax struct sockaddr_l2cap sa; 46121054Semax socklen_t size; 47121054Semax 48121054Semax if ((ss = calloc(1, sizeof(*ss))) == NULL) 49121054Semax goto fail; 50121054Semax 51121054Semax if (l == NULL || r == NULL) { 52121054Semax ss->error = EINVAL; 53121054Semax goto fail; 54121054Semax } 55121054Semax 56121054Semax ss->s = socket(PF_BLUETOOTH, SOCK_SEQPACKET, BLUETOOTH_PROTO_L2CAP); 57121054Semax if (ss->s < 0) { 58121054Semax ss->error = errno; 59121054Semax goto fail; 60121054Semax } 61121054Semax 62121054Semax sa.l2cap_len = sizeof(sa); 63121054Semax sa.l2cap_family = AF_BLUETOOTH; 64121054Semax sa.l2cap_psm = 0; 65121054Semax memcpy(&sa.l2cap_bdaddr, l, sizeof(sa.l2cap_bdaddr)); 66121054Semax if (bind(ss->s, (struct sockaddr *) &sa, sizeof(sa)) < 0) { 67121054Semax ss->error = errno; 68121054Semax goto fail; 69121054Semax } 70121054Semax 71121054Semax sa.l2cap_psm = htole16(NG_L2CAP_PSM_SDP); 72121054Semax memcpy(&sa.l2cap_bdaddr, r, sizeof(sa.l2cap_bdaddr)); 73121054Semax if (connect(ss->s, (struct sockaddr *) &sa, sizeof(sa)) < 0) { 74121054Semax ss->error = errno; 75121054Semax goto fail; 76121054Semax } 77121054Semax 78121054Semax size = sizeof(ss->omtu); 79121054Semax if (getsockopt(ss->s, SOL_L2CAP, SO_L2CAP_OMTU, &ss->omtu, &size) < 0) { 80121054Semax ss->error = errno; 81121054Semax goto fail; 82121054Semax } 83121054Semax if ((ss->req = malloc(ss->omtu)) == NULL) { 84121054Semax ss->error = ENOMEM; 85121054Semax goto fail; 86121054Semax } 87121054Semax ss->req_e = ss->req + ss->omtu; 88121054Semax 89121054Semax size = sizeof(ss->imtu); 90121054Semax if (getsockopt(ss->s, SOL_L2CAP, SO_L2CAP_IMTU, &ss->imtu, &size) < 0) { 91121054Semax ss->error = errno; 92121054Semax goto fail; 93121054Semax } 94121054Semax if ((ss->rsp = malloc(ss->imtu)) == NULL) { 95121054Semax ss->error = ENOMEM; 96121054Semax goto fail; 97121054Semax } 98121054Semax ss->rsp_e = ss->rsp + ss->imtu; 99121054Semax ss->error = 0; 100121054Semaxfail: 101121054Semax return ((void *) ss); 102121054Semax} 103121054Semax 104121054Semaxvoid * 105124317Semaxsdp_open_local(char const *control) 106121054Semax{ 107121054Semax sdp_session_p ss = NULL; 108121054Semax struct sockaddr_un sa; 109121054Semax 110121054Semax if ((ss = calloc(1, sizeof(*ss))) == NULL) 111121054Semax goto fail; 112121054Semax 113121054Semax ss->s = socket(PF_UNIX, SOCK_STREAM, 0); 114121054Semax if (ss->s < 0) { 115121054Semax ss->error = errno; 116121054Semax goto fail; 117121054Semax } 118121054Semax 119124317Semax if (control == NULL) 120124317Semax control = SDP_LOCAL_PATH; 121124317Semax 122121054Semax sa.sun_len = sizeof(sa); 123121054Semax sa.sun_family = AF_UNIX; 124124317Semax strlcpy(sa.sun_path, control, sizeof(sa.sun_path)); 125121054Semax 126121054Semax if (connect(ss->s, (struct sockaddr *) &sa, sizeof(sa)) < 0) { 127121054Semax ss->error = errno; 128121054Semax goto fail; 129121054Semax } 130121054Semax 131121054Semax ss->flags |= SDP_SESSION_LOCAL; 132124305Semax ss->imtu = ss->omtu = SDP_LOCAL_MTU; 133121054Semax 134121054Semax if ((ss->req = malloc(ss->omtu)) == NULL) { 135121054Semax ss->error = ENOMEM; 136121054Semax goto fail; 137121054Semax } 138121054Semax ss->req_e = ss->req + ss->omtu; 139121054Semax 140121054Semax if ((ss->rsp = malloc(ss->imtu)) == NULL) { 141121054Semax ss->error = ENOMEM; 142121054Semax goto fail; 143121054Semax } 144121054Semax ss->rsp_e = ss->rsp + ss->imtu; 145121054Semax ss->error = 0; 146121054Semaxfail: 147121054Semax return ((void *) ss); 148121054Semax} 149121054Semax 150121054Semaxint32_t 151121054Semaxsdp_close(void *xss) 152121054Semax{ 153121054Semax sdp_session_p ss = (sdp_session_p) xss; 154121054Semax 155121054Semax if (ss != NULL) { 156121054Semax if (ss->s >= 0) 157121054Semax close(ss->s); 158121054Semax 159121054Semax if (ss->req != NULL) 160121054Semax free(ss->req); 161121054Semax if (ss->rsp != NULL) 162121054Semax free(ss->rsp); 163121054Semax 164121054Semax memset(ss, 0, sizeof(*ss)); 165121054Semax free(ss); 166121054Semax } 167121054Semax 168121054Semax return (0); 169121054Semax} 170121054Semax 171121054Semaxint32_t 172121054Semaxsdp_error(void *xss) 173121054Semax{ 174121054Semax sdp_session_p ss = (sdp_session_p) xss; 175121054Semax 176121054Semax return ((ss != NULL)? ss->error : EINVAL); 177121054Semax} 178