1 /* 2 * ng_btsocket.c 3 * 4 * Copyright (c) 2001-2002 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: ng_btsocket.c,v 1.20 2002/09/13 17:56:58 max Exp $ 29 * $FreeBSD$ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/errno.h> 35 #include <sys/domain.h> 36 #include <sys/kernel.h> 37 #include <sys/lock.h> 38 #include <sys/mutex.h> 39 #include <sys/protosw.h> 40 #include <sys/socket.h> 41 #include <sys/socketvar.h> 42 #include <sys/sysctl.h> 43 #include <bitstring.h> 44 #include <netgraph/ng_message.h> 45 #include <netgraph/netgraph.h> 46 #include "ng_bluetooth.h" 47 #include "ng_hci.h" 48 #include "ng_l2cap.h" 49 #include "ng_btsocket.h" 50 #include "ng_btsocket_hci_raw.h" 51 #include "ng_btsocket_l2cap.h" 52 53 static int ng_btsocket_modevent (module_t, int, void *); 54 extern struct domain ng_btsocket_domain; 55 56 /* 57 * Bluetooth raw HCI sockets 58 */ 59 60 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 61 ng_btsocket_hci_raw_abort, /* abort */ 62 pru_accept_notsupp, /* accept */ 63 ng_btsocket_hci_raw_attach, /* attach */ 64 ng_btsocket_hci_raw_bind, /* bind */ 65 ng_btsocket_hci_raw_connect, /* connect */ 66 pru_connect2_notsupp, /* connect2 */ 67 ng_btsocket_hci_raw_control, /* control */ 68 ng_btsocket_hci_raw_detach, /* detach */ 69 ng_btsocket_hci_raw_disconnect, /* disconnect */ 70 pru_listen_notsupp, /* listen */ 71 ng_btsocket_hci_raw_peeraddr, /* peeraddr */ 72 pru_rcvd_notsupp, /* rcvd */ 73 pru_rcvoob_notsupp, /* rcvoob */ 74 ng_btsocket_hci_raw_send, /* send */ 75 pru_sense_null, /* send */ 76 NULL, /* shutdown */ 77 ng_btsocket_hci_raw_sockaddr, /* sockaddr */ 78 sosend, 79 soreceive, 80 sopoll 81 }; 82 83 /* 84 * Bluetooth raw L2CAP sockets 85 */ 86 87 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 88 ng_btsocket_l2cap_raw_abort, /* abort */ 89 pru_accept_notsupp, /* accept */ 90 ng_btsocket_l2cap_raw_attach, /* attach */ 91 ng_btsocket_l2cap_raw_bind, /* bind */ 92 ng_btsocket_l2cap_raw_connect, /* connect */ 93 pru_connect2_notsupp, /* connect2 */ 94 ng_btsocket_l2cap_raw_control, /* control */ 95 ng_btsocket_l2cap_raw_detach, /* detach */ 96 ng_btsocket_l2cap_raw_disconnect, /* disconnect */ 97 pru_listen_notsupp, /* listen */ 98 ng_btsocket_l2cap_raw_peeraddr, /* peeraddr */ 99 pru_rcvd_notsupp, /* rcvd */ 100 pru_rcvoob_notsupp, /* rcvoob */ 101 ng_btsocket_l2cap_raw_send, /* send */ 102 pru_sense_null, /* send */ 103 NULL, /* shutdown */ 104 ng_btsocket_l2cap_raw_sockaddr, /* sockaddr */ 105 sosend, 106 soreceive, 107 sopoll 108 }; 109 110 /* 111 * Bluetooth SEQPACKET L2CAP sockets 112 */ 113 114 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 115 ng_btsocket_l2cap_abort, /* abort */ 116 ng_btsocket_l2cap_accept, /* accept */ 117 ng_btsocket_l2cap_attach, /* attach */ 118 ng_btsocket_l2cap_bind, /* bind */ 119 ng_btsocket_l2cap_connect, /* connect */ 120 pru_connect2_notsupp, /* connect2 */ 121 ng_btsocket_l2cap_control, /* control */ 122 ng_btsocket_l2cap_detach, /* detach */ 123 ng_btsocket_l2cap_disconnect, /* disconnect */ 124 ng_btsocket_l2cap_listen, /* listen */ 125 ng_btsocket_l2cap_peeraddr, /* peeraddr */ 126 pru_rcvd_notsupp, /* rcvd */ 127 pru_rcvoob_notsupp, /* rcvoob */ 128 ng_btsocket_l2cap_send, /* send */ 129 pru_sense_null, /* send */ 130 NULL, /* shutdown */ 131 ng_btsocket_l2cap_sockaddr, /* sockaddr */ 132 sosend, 133 soreceive, 134 sopoll 135 }; 136 137 /* 138 * Definitions of protocols supported in the BLUETOOTH domain 139 */ 140 141 static struct protosw ng_btsocket_protosw[] = { 142 { 143 SOCK_RAW, /* protocol type */ 144 &ng_btsocket_domain, /* backpointer to domain */ 145 BLUETOOTH_PROTO_HCI, /* protocol */ 146 PR_ATOMIC | PR_ADDR, /* flags */ 147 NULL, NULL, NULL, /* input, output, ctlinput */ 148 ng_btsocket_hci_raw_ctloutput, /* ctloutput */ 149 NULL, /* ousrreq() */ 150 ng_btsocket_hci_raw_init, /* init */ 151 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 152 &ng_btsocket_hci_raw_usrreqs, /* usrreq table (above) */ 153 /* { NULL } */ /* pfh (protocol filter head?) */ 154 }, 155 { 156 SOCK_RAW, /* protocol type */ 157 &ng_btsocket_domain, /* backpointer to domain */ 158 BLUETOOTH_PROTO_L2CAP, /* protocol */ 159 PR_ATOMIC | PR_ADDR, /* flags */ 160 NULL, NULL, NULL, /* input, output, ctlinput */ 161 NULL, /* ctloutput */ 162 NULL, /* ousrreq() */ 163 ng_btsocket_l2cap_raw_init, /* init */ 164 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 165 &ng_btsocket_l2cap_raw_usrreqs, /* usrreq table (above) */ 166 /* { NULL } */ /* pfh (protocol filter head?) */ 167 }, 168 { 169 SOCK_SEQPACKET, /* protocol type */ 170 &ng_btsocket_domain, /* backpointer to domain */ 171 BLUETOOTH_PROTO_L2CAP, /* protocol */ 172 PR_ATOMIC | PR_CONNREQUIRED, /* flags */ 173 NULL, NULL, NULL, /* input, output, ctlinput */ 174 ng_btsocket_l2cap_ctloutput, /* ctloutput */ 175 NULL, /* ousrreq() */ 176 ng_btsocket_l2cap_init, /* init */ 177 NULL, NULL, NULL, /* fasttimeo, slowtimo, drain */ 178 &ng_btsocket_l2cap_usrreqs, /* usrreq table (above) */ 179 /* { NULL } */ /* pfh (protocol filter head?) */ 180 } 181 }; 182 #define ng_btsocket_protosw_size \ 183 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 184 #define ng_btsocket_protosw_end \ 185 &ng_btsocket_protosw[ng_btsocket_protosw_size] 186 187 /* 188 * BLUETOOTH domain 189 */ 190 191 struct domain ng_btsocket_domain = { 192 AF_BLUETOOTH, /* family */ 193 "bluetooth", /* domain name */ 194 NULL, /* init() */ 195 NULL, /* externalize() */ 196 NULL, /* dispose() */ 197 ng_btsocket_protosw, /* protosw entry */ 198 ng_btsocket_protosw_end, /* end of protosw entries */ 199 NULL, /* next domain in list */ 200 NULL, /* rtattach() */ 201 0, /* arg to rtattach in bits */ 202 0 /* maxrtkey */ 203 }; 204 205 /* 206 * Socket sysctl tree 207 */ 208 209 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 210 0, "Bluetooth HCI sockets family"); 211 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 212 0, "Bluetooth L2CAP sockets family"); 213 214 /* 215 * Module 216 */ 217 218 static moduledata_t ng_btsocket_mod = { 219 "ng_btsocket", 220 ng_btsocket_modevent, 221 NULL 222 }; 223 224 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 225 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 226 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 227 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 228 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 229 NG_ABI_VERSION, NG_ABI_VERSION); 230 231 /* 232 * Handle loading and unloading for this node type. 233 * This is to handle auxiliary linkages (e.g protocol domain addition). 234 */ 235 236 static int 237 ng_btsocket_modevent(module_t mod, int event, void *data) 238 { 239 int error = 0; 240 241 switch (event) { 242 case MOD_LOAD: 243 net_add_domain(&ng_btsocket_domain); 244 break; 245 246 case MOD_UNLOAD: 247 /* XXX can't unload protocol domain yet */ 248 error = EBUSY; 249 break; 250 251 default: 252 error = EOPNOTSUPP; 253 break; 254 } 255 256 return (error); 257 } /* ng_btsocket_modevent */ 258 259