]> CyberLeo.Net >> Repos - FreeBSD/FreeBSD.git/blob - usr.sbin/bluetooth/bthidd/session.c
Merge compiler-rt trunk r321414 to contrib/compiler-rt.
[FreeBSD/FreeBSD.git] / usr.sbin / bluetooth / bthidd / session.c
1 /*
2  * session.c
3  */
4
5 /*-
6  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
7  *
8  * Copyright (c) 2006 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * $Id: session.c,v 1.3 2006/09/07 21:06:53 max Exp $
33  * $FreeBSD$
34  */
35
36 #include <sys/queue.h>
37 #include <assert.h>
38 #define L2CAP_SOCKET_CHECKED
39 #include <bluetooth.h>
40 #include <errno.h>
41 #include <fcntl.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45 #include <syslog.h>
46 #include <unistd.h>
47 #include <usbhid.h>
48 #include "bthid_config.h"
49 #include "bthidd.h"
50 #include "kbd.h"
51
52 /*
53  * Create new session
54  */
55
56 bthid_session_p
57 session_open(bthid_server_p srv, hid_device_p const d)
58 {
59         bthid_session_p s;
60
61         assert(srv != NULL);
62         assert(d != NULL);
63
64         if ((s = (bthid_session_p) malloc(sizeof(*s))) == NULL)
65                 return (NULL);
66
67         s->srv = srv;  
68         memcpy(&s->bdaddr, &d->bdaddr, sizeof(s->bdaddr));
69         s->ctrl = -1;
70         s->intr = -1;
71         s->ctx = NULL;
72
73         if (d->keyboard) {
74                 /* Open /dev/vkbdctl */
75                 s->vkbd = open("/dev/vkbdctl", O_RDWR);
76                 if (s->vkbd < 0) {
77                         syslog(LOG_ERR, "Could not open /dev/vkbdctl " \
78                                 "for %s. %s (%d)", bt_ntoa(&s->bdaddr, NULL),
79                                 strerror(errno), errno);
80                         free(s);
81                         return (NULL);
82                 }
83         } else
84                 s->vkbd = -1;
85
86         s->state = CLOSED;
87
88         s->keys1 = bit_alloc(kbd_maxkey());
89         if (s->keys1 == NULL) {
90                 free(s);
91                 return (NULL);
92         }
93
94         s->keys2 = bit_alloc(kbd_maxkey());
95         if (s->keys2 == NULL) {
96                 free(s->keys1);
97                 free(s);
98                 return (NULL);
99         }
100
101         LIST_INSERT_HEAD(&srv->sessions, s, next);
102
103         return (s);
104 }
105
106 /*
107  * Lookup session by bdaddr
108  */
109
110 bthid_session_p
111 session_by_bdaddr(bthid_server_p srv, bdaddr_p bdaddr)
112 {
113         bthid_session_p s;
114
115         assert(srv != NULL);
116         assert(bdaddr != NULL);
117
118         LIST_FOREACH(s, &srv->sessions, next)
119                 if (memcmp(&s->bdaddr, bdaddr, sizeof(s->bdaddr)) == 0)
120                         break;
121
122         return (s);
123 }
124
125 /*
126  * Lookup session by fd
127  */
128
129 bthid_session_p
130 session_by_fd(bthid_server_p srv, int32_t fd)
131 {
132         bthid_session_p s;
133
134         assert(srv != NULL);
135         assert(fd >= 0);
136
137         LIST_FOREACH(s, &srv->sessions, next)
138                 if (s->ctrl == fd || s->intr == fd || s->vkbd == fd)
139                         break;
140
141         return (s);
142 }
143
144 /*
145  * Close session
146  */
147
148 void
149 session_close(bthid_session_p s)
150 {
151         assert(s != NULL);
152         assert(s->srv != NULL);
153
154         LIST_REMOVE(s, next);
155
156         if (s->intr != -1) {
157                 FD_CLR(s->intr, &s->srv->rfdset);
158                 FD_CLR(s->intr, &s->srv->wfdset);
159                 close(s->intr);
160
161                 if (s->srv->maxfd == s->intr)
162                         s->srv->maxfd --;
163         }
164
165         if (s->ctrl != -1) {
166                 FD_CLR(s->ctrl, &s->srv->rfdset);
167                 FD_CLR(s->ctrl, &s->srv->wfdset);
168                 close(s->ctrl);
169
170                 if (s->srv->maxfd == s->ctrl)
171                         s->srv->maxfd --;
172         }
173
174         if (s->vkbd != -1) {
175                 FD_CLR(s->vkbd, &s->srv->rfdset);
176                 close(s->vkbd);
177
178                 if (s->srv->maxfd == s->vkbd)
179                         s->srv->maxfd --;
180         }
181
182         free(s->ctx);
183         free(s->keys1);
184         free(s->keys2);
185
186         memset(s, 0, sizeof(*s));
187         free(s);
188 }
189