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 * $FreeBSD$ 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/mutex.h> 43 #include <sys/protosw.h> 44 #include <sys/socket.h> 45 #include <sys/socketvar.h> 46 #include <sys/sysctl.h> 47 #include <sys/taskqueue.h> 48 #include <netgraph/ng_message.h> 49 #include <netgraph/netgraph.h> 50 #include <netgraph/bluetooth/include/ng_bluetooth.h> 51 #include <netgraph/bluetooth/include/ng_hci.h> 52 #include <netgraph/bluetooth/include/ng_l2cap.h> 53 #include <netgraph/bluetooth/include/ng_btsocket.h> 54 #include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h> 55 #include <netgraph/bluetooth/include/ng_btsocket_l2cap.h> 56 #include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h> 57 58 static int ng_btsocket_modevent (module_t, int, void *); 59 extern struct domain ng_btsocket_domain; 60 61 /* 62 * Bluetooth raw HCI sockets 63 */ 64 65 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = { 66 .pru_abort = ng_btsocket_hci_raw_abort, 67 .pru_attach = ng_btsocket_hci_raw_attach, 68 .pru_bind = ng_btsocket_hci_raw_bind, 69 .pru_connect = ng_btsocket_hci_raw_connect, 70 .pru_control = ng_btsocket_hci_raw_control, 71 .pru_detach = ng_btsocket_hci_raw_detach, 72 .pru_disconnect = ng_btsocket_hci_raw_disconnect, 73 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr, 74 .pru_send = ng_btsocket_hci_raw_send, 75 .pru_shutdown = NULL, 76 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr, 77 }; 78 79 /* 80 * Bluetooth raw L2CAP sockets 81 */ 82 83 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = { 84 .pru_abort = ng_btsocket_l2cap_raw_abort, 85 .pru_attach = ng_btsocket_l2cap_raw_attach, 86 .pru_bind = ng_btsocket_l2cap_raw_bind, 87 .pru_connect = ng_btsocket_l2cap_raw_connect, 88 .pru_control = ng_btsocket_l2cap_raw_control, 89 .pru_detach = ng_btsocket_l2cap_raw_detach, 90 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect, 91 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr, 92 .pru_send = ng_btsocket_l2cap_raw_send, 93 .pru_shutdown = NULL, 94 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr, 95 }; 96 97 /* 98 * Bluetooth SEQPACKET L2CAP sockets 99 */ 100 101 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = { 102 .pru_abort = ng_btsocket_l2cap_abort, 103 .pru_accept = ng_btsocket_l2cap_accept, 104 .pru_attach = ng_btsocket_l2cap_attach, 105 .pru_bind = ng_btsocket_l2cap_bind, 106 .pru_connect = ng_btsocket_l2cap_connect, 107 .pru_control = ng_btsocket_l2cap_control, 108 .pru_detach = ng_btsocket_l2cap_detach, 109 .pru_disconnect = ng_btsocket_l2cap_disconnect, 110 .pru_listen = ng_btsocket_l2cap_listen, 111 .pru_peeraddr = ng_btsocket_l2cap_peeraddr, 112 .pru_send = ng_btsocket_l2cap_send, 113 .pru_shutdown = NULL, 114 .pru_sockaddr = ng_btsocket_l2cap_sockaddr, 115 }; 116 117 /* 118 * Bluetooth STREAM RFCOMM sockets 119 */ 120 121 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = { 122 .pru_abort = ng_btsocket_rfcomm_abort, 123 .pru_accept = ng_btsocket_rfcomm_accept, 124 .pru_attach = ng_btsocket_rfcomm_attach, 125 .pru_bind = ng_btsocket_rfcomm_bind, 126 .pru_connect = ng_btsocket_rfcomm_connect, 127 .pru_control = ng_btsocket_rfcomm_control, 128 .pru_detach = ng_btsocket_rfcomm_detach, 129 .pru_disconnect = ng_btsocket_rfcomm_disconnect, 130 .pru_listen = ng_btsocket_rfcomm_listen, 131 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr, 132 .pru_send = ng_btsocket_rfcomm_send, 133 .pru_shutdown = NULL, 134 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr, 135 }; 136 137 /* 138 * Definitions of protocols supported in the BLUETOOTH domain 139 */ 140 141 static struct protosw ng_btsocket_protosw[] = { 142 { 143 .pr_type = SOCK_RAW, 144 .pr_domain = &ng_btsocket_domain, 145 .pr_protocol = BLUETOOTH_PROTO_HCI, 146 .pr_flags = PR_ATOMIC|PR_ADDR, 147 .pr_ctloutput = ng_btsocket_hci_raw_ctloutput, 148 .pr_init = ng_btsocket_hci_raw_init, 149 .pr_usrreqs = &ng_btsocket_hci_raw_usrreqs, 150 }, 151 { 152 .pr_type = SOCK_RAW, 153 .pr_domain = &ng_btsocket_domain, 154 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 155 .pr_flags = PR_ATOMIC|PR_ADDR, 156 .pr_init = ng_btsocket_l2cap_raw_init, 157 .pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs, 158 }, 159 { 160 .pr_type = SOCK_SEQPACKET, 161 .pr_domain = &ng_btsocket_domain, 162 .pr_protocol = BLUETOOTH_PROTO_L2CAP, 163 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED, 164 .pr_ctloutput = ng_btsocket_l2cap_ctloutput, 165 .pr_init = ng_btsocket_l2cap_init, 166 .pr_usrreqs = &ng_btsocket_l2cap_usrreqs, 167 }, 168 { 169 .pr_type = SOCK_STREAM, 170 .pr_domain = &ng_btsocket_domain, 171 .pr_protocol = BLUETOOTH_PROTO_RFCOMM, 172 .pr_flags = PR_CONNREQUIRED, 173 .pr_ctloutput = ng_btsocket_rfcomm_ctloutput, 174 .pr_init = ng_btsocket_rfcomm_init, 175 .pr_usrreqs = &ng_btsocket_rfcomm_usrreqs, 176 } 177 }; 178 #define ng_btsocket_protosw_size \ 179 (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0])) 180 #define ng_btsocket_protosw_end \ 181 &ng_btsocket_protosw[ng_btsocket_protosw_size] 182 183 /* 184 * BLUETOOTH domain 185 */ 186 187 struct domain ng_btsocket_domain = { 188 .dom_family = AF_BLUETOOTH, 189 .dom_name = "bluetooth", 190 .dom_protosw = ng_btsocket_protosw, 191 .dom_protoswNPROTOSW = ng_btsocket_protosw_end 192 }; 193 194 /* 195 * Socket sysctl tree 196 */ 197 198 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW, 199 0, "Bluetooth HCI sockets family"); 200 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW, 201 0, "Bluetooth L2CAP sockets family"); 202 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW, 203 0, "Bluetooth RFCOMM sockets family"); 204 205 /* 206 * Module 207 */ 208 209 static moduledata_t ng_btsocket_mod = { 210 "ng_btsocket", 211 ng_btsocket_modevent, 212 NULL 213 }; 214 215 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN, 216 SI_ORDER_ANY); 217 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION); 218 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION, 219 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION); 220 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION, 221 NG_ABI_VERSION, NG_ABI_VERSION); 222 223 /* 224 * Handle loading and unloading for this node type. 225 * This is to handle auxiliary linkages (e.g protocol domain addition). 226 */ 227 228 static int 229 ng_btsocket_modevent(module_t mod, int event, void *data) 230 { 231 int error = 0; 232 233 switch (event) { 234 case MOD_LOAD: 235 net_add_domain(&ng_btsocket_domain); 236 break; 237 238 case MOD_UNLOAD: 239 /* XXX can't unload protocol domain yet */ 240 error = EBUSY; 241 break; 242 243 default: 244 error = EOPNOTSUPP; 245 break; 246 } 247 248 return (error); 249 } /* ng_btsocket_modevent */ 250 251