1 /* 2 * session.c 3 * 4 * Copyright (c) 2004 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 1.1 2004/02/12 22:46:59 max Exp $ 29 * $FreeBSD$ 30 */ 31 32 #include <sys/queue.h> 33 #include <assert.h> 34 #include <bluetooth.h> 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <unistd.h> 39 #include "bthidd.h" 40 41 /* 42 * Create new session 43 */ 44 45 bthid_session_p 46 session_open(bthid_server_p srv, bdaddr_p bdaddr) 47 { 48 bthid_session_p s = NULL; 49 50 assert(srv != NULL); 51 assert(bdaddr != NULL); 52 53 if ((s = (bthid_session_p) malloc(sizeof(*s))) != NULL) { 54 s->srv = srv; 55 memcpy(&s->bdaddr, bdaddr, sizeof(s->bdaddr)); 56 s->ctrl = s->intr = -1; 57 s->state = CLOSED; 58 59 LIST_INSERT_HEAD(&srv->sessions, s, next); 60 } 61 62 return (s); 63 } 64 65 /* 66 * Lookup session by bdaddr 67 */ 68 69 bthid_session_p 70 session_by_bdaddr(bthid_server_p srv, bdaddr_p bdaddr) 71 { 72 bthid_session_p s = NULL; 73 74 assert(srv != NULL); 75 assert(bdaddr != NULL); 76 77 LIST_FOREACH(s, &srv->sessions, next) 78 if (memcmp(&s->bdaddr, bdaddr, sizeof(s->bdaddr)) == 0) 79 break; 80 81 return (s); 82 } 83 84 /* 85 * Lookup session by fd 86 */ 87 88 bthid_session_p 89 session_by_fd(bthid_server_p srv, int fd) 90 { 91 bthid_session_p s = NULL; 92 93 assert(srv != NULL); 94 assert(fd >= 0); 95 96 LIST_FOREACH(s, &srv->sessions, next) 97 if (s->ctrl == fd || s->intr == fd) 98 break; 99 100 return (s); 101 } 102 103 /* 104 * Close session 105 */ 106 107 void 108 session_close(bthid_session_p s) 109 { 110 assert(s != NULL); 111 assert(s->srv != NULL); 112 113 LIST_REMOVE(s, next); 114 115 if (s->intr != -1) { 116 FD_CLR(s->intr, &s->srv->rfdset); 117 FD_CLR(s->intr, &s->srv->wfdset); 118 close(s->intr); 119 120 if (s->srv->maxfd == s->intr) 121 s->srv->maxfd --; 122 } 123 124 if (s->ctrl != -1) { 125 FD_CLR(s->ctrl, &s->srv->rfdset); 126 FD_CLR(s->ctrl, &s->srv->wfdset); 127 close(s->ctrl); 128 129 if (s->srv->maxfd == s->ctrl) 130 s->srv->maxfd --; 131 } 132 133 memset(s, 0, sizeof(*s)); 134 free(s); 135 } 136 137