6 * Copyright (c) 2006 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * $Id: client.c,v 1.7 2006/09/07 21:06:53 max Exp $
34 #include <sys/queue.h>
36 #include <bluetooth.h>
45 #include "bthid_config.h"
48 static int32_t client_socket(bdaddr_p bdaddr, uint16_t psm);
51 * Get next config entry and create outbound connection (if required)
53 * XXX Do only one device at a time. At least one of my devices (3COM
54 * Bluetooth PCCARD) rejects Create_Connection command if another
55 * Create_Connection command is still pending. Weird...
58 static int32_t connect_in_progress = 0;
61 client_rescan(bthid_server_p srv)
63 static hid_device_p d;
68 if (connect_in_progress)
69 return (0); /* another connect is still pending */
71 d = get_next_hid_device(d);
73 return (0); /* XXX should not happen? empty config? */
75 if ((s = session_by_bdaddr(srv, &d->bdaddr)) != NULL)
76 return (0); /* session already active */
79 if (d->reconnect_initiate)
80 return (0); /* device will initiate reconnect */
83 syslog(LOG_NOTICE, "Opening outbound session for %s " \
84 "(new_device=%d, reconnect_initiate=%d)",
85 bt_ntoa(&d->bdaddr, NULL), d->new_device, d->reconnect_initiate);
87 if ((s = session_open(srv, d)) == NULL) {
88 syslog(LOG_CRIT, "Could not create outbound session for %s",
89 bt_ntoa(&d->bdaddr, NULL));
93 /* Open control channel */
94 s->ctrl = client_socket(&s->bdaddr, d->control_psm);
96 syslog(LOG_ERR, "Could not open control channel to %s. %s (%d)",
97 bt_ntoa(&s->bdaddr, NULL), strerror(errno), errno);
104 FD_SET(s->ctrl, &srv->wfdset);
105 if (s->ctrl > srv->maxfd)
106 srv->maxfd = s->ctrl;
108 connect_in_progress = 1;
114 * Process connect on the socket
118 client_connect(bthid_server_p srv, int32_t fd)
128 s = session_by_fd(srv, fd);
131 d = get_hid_device(&s->bdaddr);
136 if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &len) < 0) {
137 syslog(LOG_ERR, "Could not get socket error for %s. %s (%d)",
138 bt_ntoa(&s->bdaddr, NULL), strerror(errno), errno);
140 connect_in_progress = 0;
146 syslog(LOG_ERR, "Could not connect to %s. %s (%d)",
147 bt_ntoa(&s->bdaddr, NULL), strerror(error), error);
149 connect_in_progress = 0;
155 case W4CTRL: /* Control channel is open */
156 assert(s->ctrl == fd);
157 assert(s->intr == -1);
159 /* Open interrupt channel */
160 s->intr = client_socket(&s->bdaddr, d->interrupt_psm);
162 syslog(LOG_ERR, "Could not open interrupt channel " \
163 "to %s. %s (%d)", bt_ntoa(&s->bdaddr, NULL),
164 strerror(errno), errno);
166 connect_in_progress = 0;
173 FD_SET(s->intr, &srv->wfdset);
174 if (s->intr > srv->maxfd)
175 srv->maxfd = s->intr;
177 d->new_device = 0; /* reset new device flag */
181 case W4INTR: /* Interrupt channel is open */
182 assert(s->ctrl != -1);
183 assert(s->intr == fd);
186 connect_in_progress = 0;
188 /* Register session's vkbd descriptor (if any) for read */
189 if (s->state == OPEN && d->keyboard) {
190 assert(s->vkbd != -1);
192 FD_SET(s->vkbd, &srv->rfdset);
193 if (s->vkbd > srv->maxfd)
194 srv->maxfd = s->vkbd;
203 /* Move fd to from the write fd set into read fd set */
204 FD_CLR(fd, &srv->wfdset);
205 FD_SET(fd, &srv->rfdset);
211 * Create bound non-blocking socket and initiate connect
215 client_socket(bdaddr_p bdaddr, uint16_t psm)
217 struct sockaddr_l2cap l2addr;
220 s = socket(PF_BLUETOOTH, SOCK_SEQPACKET, BLUETOOTH_PROTO_L2CAP);
224 m = fcntl(s, F_GETFL);
230 if (fcntl(s, F_SETFL, (m|O_NONBLOCK)) < 0) {
235 l2addr.l2cap_len = sizeof(l2addr);
236 l2addr.l2cap_family = AF_BLUETOOTH;
237 memset(&l2addr.l2cap_bdaddr, 0, sizeof(l2addr.l2cap_bdaddr));
238 l2addr.l2cap_psm = 0;
240 if (bind(s, (struct sockaddr *) &l2addr, sizeof(l2addr)) < 0) {
245 memcpy(&l2addr.l2cap_bdaddr, bdaddr, sizeof(l2addr.l2cap_bdaddr));
246 l2addr.l2cap_psm = htole16(psm);
248 if (connect(s, (struct sockaddr *) &l2addr, sizeof(l2addr)) < 0 &&
249 errno != EINPROGRESS) {