1 /* 2 * ng_btsocket.c 3 */ 4 5 /*- 6 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 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. 17 * 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 28 * SUCH DAMAGE. 29 * 30 * $Id: ng_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $ 31 * $FreeBSD: src/sys/netgraph/bluetooth/socket/ng_btsocket.c,v 1.13 2006/07/21 17:11:13 rwatson Exp $ 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/bitstring.h> 37 #include <sys/errno.h> 38 #include <sys/domain.h> 39 #include <sys/kernel.h> 40 #include <sys/lock.h> 41 #include <sys/mbuf.h> 42 #include <sys/protosw.h> 43 #include <sys/socket.h> 44 #include <sys/socketvar.h> 45 #include <sys/sysctl.h> 46 #include <sys/taskqueue.h> 47 #include <netgraph7/ng_message.h> 48 #include <netgraph7/netgraph.h> 49 #include <netgraph7/bluetooth/include/ng_bluetooth.h> 50 #include <netgraph7/bluetooth/include/ng_hci.h> 51 #include <netgraph7/bluetooth/include/ng_l2cap.h> 52 #include <netgraph7/bluetooth/include/ng_btsocket.h> 53 #include <netgraph7/bluetooth/include/ng_btsocket_hci_raw.h> 54 #include <netgraph7/bluetooth/include/ng_btsocket_l2cap.h> 55 #include <netgraph7/bluetooth/include/ng_btsocket_rfcomm.h> 56 57 static int ng_btsocket_modevent (module_t, int, void *); 58 extern struct domain ng_btsocket_domain; 59 60 /* 61 * Bluetooth raw HCI sockets 62 */ 63 64 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 65 .pru_abort = ng_btsocket_hci_raw_abort, 66 .pru_attach = ng_btsocket_hci_raw_attach, 67 .pru_bind = ng_btsocket_hci_raw_bind, 68 .pru_connect = ng_btsocket_hci_raw_connect, 69 .pru_control = ng_btsocket_hci_raw_control, 70 .pru_detach = ng_btsocket_hci_raw_detach, 71 .pru_disconnect = ng_btsocket_hci_raw_disconnect, 72 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr, 73 .pru_send = ng_btsocket_hci_raw_send, 74 .pru_shutdown = NULL, 75 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr, 76 #if 0 /* XXX */ 77 .pru_close = ng_btsocket_hci_raw_close, 78 #endif 79 .pru_sosend = sosend, 80 .pru_soreceive = soreceive, 81 }; 82 83 /* 84 * Bluetooth raw L2CAP sockets 85 */ 86 87 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 88 .pru_abort = ng_btsocket_l2cap_raw_abort, 89 .pru_attach = ng_btsocket_l2cap_raw_attach, 90 .pru_bind = ng_btsocket_l2cap_raw_bind, 91 .pru_connect = ng_btsocket_l2cap_raw_connect, 92 .pru_control = ng_btsocket_l2cap_raw_control, 93 .pru_detach = ng_btsocket_l2cap_raw_detach, 94 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect, 95 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr, 96 .pru_send = ng_btsocket_l2cap_raw_send, 97 .pru_shutdown = NULL, 98 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr, 99 #if 0 /* XXX */ 100 .pru_close = ng_btsocket_l2cap_raw_close, 101 #endif 102 .pru_sosend = sosend, 103 .pru_soreceive = soreceive, 104 }; 105 106 /* 107 * Bluetooth SEQPACKET L2CAP sockets 108 */ 109 110 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 111 .pru_abort = ng_btsocket_l2cap_abort, 112 .pru_accept = ng_btsocket_l2cap_accept, 113 .pru_attach = ng_btsocket_l2cap_attach, 114 .pru_bind = ng_btsocket_l2cap_bind, 115 .pru_connect = ng_btsocket_l2cap_connect, 116 .pru_control = ng_btsocket_l2cap_control, 117 .pru_detach = ng_btsocket_l2cap_detach, 118 .pru_disconnect = ng_btsocket_l2cap_disconnect, 119 .pru_listen = ng_btsocket_l2cap_listen, 120 .pru_peeraddr = ng_btsocket_l2cap_peeraddr, 121 .pru_send = ng_btsocket_l2cap_send, 122 .pru_shutdown = NULL, 123 .pru_sockaddr = ng_btsocket_l2cap_sockaddr, 124 #if 0 /* XXX */ 125 .pru_close = ng_btsocket_l2cap_close, 126 #endif 127 .pru_sosend = sosend, 128 .pru_soreceive = soreceive, 129 }; 130 131 /* 132 * Bluetooth STREAM RFCOMM sockets 133 */ 134 135 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 136 .pru_abort = ng_btsocket_rfcomm_abort, 137 .pru_accept = ng_btsocket_rfcomm_accept, 138 .pru_attach = ng_btsocket_rfcomm_attach, 139 .pru_bind = ng_btsocket_rfcomm_bind, 140 .pru_connect = ng_btsocket_rfcomm_connect, 141 .pru_control = ng_btsocket_rfcomm_control, 142 .pru_detach = ng_btsocket_rfcomm_detach, 143 .pru_disconnect = ng_btsocket_rfcomm_disconnect, 144 .pru_listen = ng_btsocket_rfcomm_listen, 145 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr, 146 .pru_send = ng_btsocket_rfcomm_send, 147 .pru_shutdown = NULL, 148 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr, 149 #if 0 /* XXX */ 150 .pru_close = ng_btsocket_rfcomm_close, 151 #endif 152 .pru_sosend = sosend, 153 .pru_soreceive = soreceive, 154 }; 155 156 /* 157 * Definitions of protocols supported in the BLUETOOTH domain 158 */ 159 160 static struct protosw ng_btsocket_protosw[] = { 161 { 162 .pr_type = SOCK_RAW, 163 .pr_domain = &ng_btsocket_domain, 164 .pr_protocol = BLUETOOTH_PROTO_HCI, 165 .pr_flags = PR_ATOMIC|PR_ADDR, 166 .pr_ctloutput = ng_btsocket_hci_raw_ctloutput, 167 .pr_init = ng_btsocket_hci_raw_init, 168 .pr_usrreqs = &ng_btsocket_hci_raw_usrreqs, 169 }, 170 { 171 .pr_type = SOCK_RAW, 172 .pr_domain = &ng_btsocket_domain, 173 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 174 .pr_flags = PR_ATOMIC|PR_ADDR, 175 .pr_init = ng_btsocket_l2cap_raw_init, 176 .pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs, 177 }, 178 { 179 .pr_type = SOCK_SEQPACKET, 180 .pr_domain = &ng_btsocket_domain, 181 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 182 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED, 183 .pr_ctloutput = ng_btsocket_l2cap_ctloutput, 184 .pr_init = ng_btsocket_l2cap_init, 185 .pr_usrreqs = &ng_btsocket_l2cap_usrreqs, 186 }, 187 { 188 .pr_type = SOCK_STREAM, 189 .pr_domain = &ng_btsocket_domain, 190 .pr_protocol = BLUETOOTH_PROTO_RFCOMM, 191 .pr_flags = PR_CONNREQUIRED, 192 .pr_ctloutput = ng_btsocket_rfcomm_ctloutput, 193 .pr_init = ng_btsocket_rfcomm_init, 194 .pr_usrreqs = &ng_btsocket_rfcomm_usrreqs, 195 } 196 }; 197 #define ng_btsocket_protosw_size NELEM(ng_btsocket_protosw) 198 #define ng_btsocket_protosw_end \ 199 &ng_btsocket_protosw[ng_btsocket_protosw_size] 200 201 /* 202 * BLUETOOTH domain 203 */ 204 205 struct domain ng_btsocket_domain = { 206 .dom_family = AF_BLUETOOTH, 207 .dom_name = "bluetooth", 208 .dom_protosw = ng_btsocket_protosw, 209 .dom_protoswNPROTOSW = ng_btsocket_protosw_end 210 }; 211 212 /* 213 * Socket sysctl tree 214 */ 215 216 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 217 0, "Bluetooth HCI sockets family"); 218 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 219 0, "Bluetooth L2CAP sockets family"); 220 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 221 0, "Bluetooth RFCOMM sockets family"); 222 223 /* 224 * Module 225 */ 226 227 static moduledata_t ng_btsocket_mod = { 228 "ng_btsocket", 229 ng_btsocket_modevent, 230 NULL 231 }; 232 233 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN, 234 SI_ORDER_ANY); 235 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 236 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 237 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 238 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 239 NG_ABI_VERSION, NG_ABI_VERSION); 240 241 /* 242 * Handle loading and unloading for this node type. 243 * This is to handle auxiliary linkages (e.g protocol domain addition). 244 */ 245 246 static int 247 ng_btsocket_modevent(module_t mod, int event, void *data) 248 { 249 int error = 0; 250 251 switch (event) { 252 case MOD_LOAD: 253 net_add_domain(&ng_btsocket_domain); 254 break; 255 256 case MOD_UNLOAD: 257 /* XXX can't unload protocol domain yet */ 258 error = EBUSY; 259 break; 260 261 default: 262 error = EOPNOTSUPP; 263 break; 264 } 265 266 return (error); 267 } /* ng_btsocket_modevent */ 268 269