btpand.h revision 1.1
1 /* $NetBSD: btpand.h,v 1.1 2008/08/17 13:20:57 plunky Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 Iain Hibbert 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 ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/types.h> 29 #include <sys/queue.h> 30 31 #include <net/if.h> 32 #include <net/if_ether.h> 33 34 #include <assert.h> 35 #include <event.h> 36 #include <bluetooth.h> 37 #include <stdbool.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <syslog.h> 41 42 typedef struct channel channel_t; 43 typedef struct pfilter pfilter_t; 44 typedef struct mfilter mfilter_t; 45 typedef struct packet packet_t; 46 typedef struct pkthdr pkthdr_t; 47 typedef struct pktlist pktlist_t; 48 typedef struct exthdr exthdr_t; 49 typedef struct extlist extlist_t; 50 51 LIST_HEAD(chlist, channel); 52 STAILQ_HEAD(extlist, exthdr); 53 STAILQ_HEAD(pktlist, pkthdr); 54 55 enum channel_state { 56 CHANNEL_CLOSED, 57 CHANNEL_WAIT_CONNECT_REQ, 58 CHANNEL_WAIT_CONNECT_RSP, 59 CHANNEL_OPEN, 60 }; 61 62 #define CHANNEL_MAXQLEN 128 63 64 /* BNEP or tap channel */ 65 struct channel { 66 enum channel_state state; 67 bool oactive; 68 69 uint8_t laddr[ETHER_ADDR_LEN]; 70 uint8_t raddr[ETHER_ADDR_LEN]; 71 size_t mru; 72 size_t mtu; 73 74 int npfilter; 75 pfilter_t * pfilter; 76 77 int nmfilter; 78 mfilter_t * mfilter; 79 80 pktlist_t pktlist; 81 int qlen; 82 83 int fd; 84 struct event rd_ev; 85 struct event wr_ev; 86 uint8_t * sendbuf; 87 88 bool (*send)(channel_t *, packet_t *); 89 bool (*recv)(packet_t *); 90 91 int tick; 92 93 int refcnt; 94 LIST_ENTRY(channel) next; 95 }; 96 97 /* network protocol type filter */ 98 struct pfilter { 99 uint16_t start; 100 uint16_t end; 101 }; 102 103 /* multicast address filter */ 104 struct mfilter { 105 uint8_t start[ETHER_ADDR_LEN]; 106 uint8_t end[ETHER_ADDR_LEN]; 107 }; 108 109 /* packet data buffer */ 110 struct packet { 111 channel_t * chan; /* source channel */ 112 uint8_t * dst; /* dest address */ 113 uint8_t * src; /* source address */ 114 uint8_t * type; /* protocol type */ 115 uint8_t * ptr; /* data pointer */ 116 size_t len; /* data length */ 117 int refcnt; /* reference count */ 118 extlist_t extlist;/* extension headers */ 119 uint8_t buf[0]; /* data starts here */ 120 }; 121 122 /* extension header */ 123 struct exthdr { 124 STAILQ_ENTRY(exthdr) next; 125 uint8_t * ptr; 126 uint8_t len; 127 }; 128 129 /* packet header */ 130 struct pkthdr { 131 STAILQ_ENTRY(pkthdr) next; 132 packet_t * data; 133 }; 134 135 /* global variables */ 136 extern const char * control_path; 137 extern const char * service_name; 138 extern const char * interface_name; 139 extern bdaddr_t local_bdaddr; 140 extern bdaddr_t remote_bdaddr; 141 extern uint16_t l2cap_psm; 142 extern int l2cap_mode; 143 extern uint16_t service_class; 144 extern int server_limit; 145 146 /* 147 * Bluetooth addresses are stored the other way around than 148 * Ethernet addresses even though they are of the same family 149 */ 150 static inline void 151 b2eaddr(void *dst, bdaddr_t *src) 152 { 153 uint8_t *d = dst; 154 int i; 155 156 for (i = 0; i < ETHER_ADDR_LEN; i++) 157 d[i] = src->b[ETHER_ADDR_LEN - i - 1]; 158 } 159 160 #define log_err(fmt, args...) syslog(LOG_ERR, fmt , ##args) 161 #define log_info(fmt, args...) syslog(LOG_INFO, fmt , ##args) 162 #define log_notice(fmt, args...) syslog(LOG_NOTICE, fmt , ##args) 163 #define log_debug(fmt, args...) syslog(LOG_DEBUG, "%s: " fmt, __func__ , ##args) 164 165 /* bnep.c */ 166 bool bnep_send(channel_t *, packet_t *); 167 bool bnep_recv(packet_t *); 168 void bnep_send_control(channel_t *, uint8_t, ...); 169 170 /* channel.c */ 171 void channel_init(void); 172 channel_t * channel_alloc(void); 173 bool channel_open(channel_t *, int); 174 void channel_close(channel_t *); 175 void channel_free(channel_t *); 176 void channel_timeout(channel_t *, int); 177 void channel_put(channel_t *, packet_t *); 178 179 /* client.c */ 180 void client_init(void); 181 182 /* packet.c */ 183 packet_t * packet_alloc(channel_t *); 184 void packet_free(packet_t *); 185 void packet_adj(packet_t *, size_t); 186 pkthdr_t * pkthdr_alloc(packet_t *); 187 void pkthdr_free(pkthdr_t *); 188 189 /* server.c */ 190 void server_init(void); 191 void server_update(int); 192 193 /* tap.c */ 194 void tap_init(void); 195
Indexes created Wed Sep 24 15:09:51 GMT 2025