sys/netgraph/bluetooth/socket/ng_btsocket.c

   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
  49 #include <net/vnet.h>
  50
  51 #include <netgraph/ng_message.h>
  52 #include <netgraph/netgraph.h>
  53 #include <netgraph/bluetooth/include/ng_bluetooth.h>
  54 #include <netgraph/bluetooth/include/ng_hci.h>
  55 #include <netgraph/bluetooth/include/ng_l2cap.h>
  56 #include <netgraph/bluetooth/include/ng_btsocket.h>
  57 #include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h>
  58 #include <netgraph/bluetooth/include/ng_btsocket_l2cap.h>
  59 #include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h>
  60 #include <netgraph/bluetooth/include/ng_btsocket_sco.h>
  61
  62 static int                      ng_btsocket_modevent (module_t, int, void *);
  63 static struct domain            ng_btsocket_domain;
  64
  65 /*
  66  * Bluetooth raw HCI sockets
  67  */
  68
  69 static struct pr_usrreqs        ng_btsocket_hci_raw_usrreqs = {
  70         .pru_abort =            ng_btsocket_hci_raw_abort,
  71         .pru_attach =           ng_btsocket_hci_raw_attach,
  72         .pru_bind =             ng_btsocket_hci_raw_bind,
  73         .pru_connect =          ng_btsocket_hci_raw_connect,
  74         .pru_control =          ng_btsocket_hci_raw_control,
  75         .pru_detach =           ng_btsocket_hci_raw_detach,
  76         .pru_disconnect =       ng_btsocket_hci_raw_disconnect,
  77         .pru_peeraddr =         ng_btsocket_hci_raw_peeraddr,
  78         .pru_send =             ng_btsocket_hci_raw_send,
  79         .pru_shutdown =         NULL,
  80         .pru_sockaddr =         ng_btsocket_hci_raw_sockaddr,
  81         .pru_close =            ng_btsocket_hci_raw_close,
  82 };
  83
  84 /*
  85  * Bluetooth raw L2CAP sockets
  86  */
  87
  88 static struct pr_usrreqs        ng_btsocket_l2cap_raw_usrreqs = {
  89         .pru_abort =            ng_btsocket_l2cap_raw_abort,
  90         .pru_attach =           ng_btsocket_l2cap_raw_attach,
  91         .pru_bind =             ng_btsocket_l2cap_raw_bind,
  92         .pru_connect =          ng_btsocket_l2cap_raw_connect,
  93         .pru_control =          ng_btsocket_l2cap_raw_control,
  94         .pru_detach =           ng_btsocket_l2cap_raw_detach,
  95         .pru_disconnect =       ng_btsocket_l2cap_raw_disconnect,
  96         .pru_peeraddr =         ng_btsocket_l2cap_raw_peeraddr,
  97         .pru_send =             ng_btsocket_l2cap_raw_send,
  98         .pru_shutdown =         NULL,
  99         .pru_sockaddr =         ng_btsocket_l2cap_raw_sockaddr,
 100         .pru_close =            ng_btsocket_l2cap_raw_close,
 101 };
 102
 103 /*
 104  * Bluetooth SEQPACKET L2CAP sockets
 105  */
 106
 107 static struct pr_usrreqs        ng_btsocket_l2cap_usrreqs = {
 108         .pru_abort =            ng_btsocket_l2cap_abort,
 109         .pru_accept =           ng_btsocket_l2cap_accept,
 110         .pru_attach =           ng_btsocket_l2cap_attach,
 111         .pru_bind =             ng_btsocket_l2cap_bind,
 112         .pru_connect =          ng_btsocket_l2cap_connect,
 113         .pru_control =          ng_btsocket_l2cap_control,
 114         .pru_detach =           ng_btsocket_l2cap_detach,
 115         .pru_disconnect =       ng_btsocket_l2cap_disconnect,
 116         .pru_listen =           ng_btsocket_l2cap_listen,
 117         .pru_peeraddr =         ng_btsocket_l2cap_peeraddr,
 118         .pru_send =             ng_btsocket_l2cap_send,
 119         .pru_shutdown =         NULL,
 120         .pru_sockaddr =         ng_btsocket_l2cap_sockaddr,
 121         .pru_close =            ng_btsocket_l2cap_close,
 122 };
 123
 124 /*
 125  * Bluetooth STREAM RFCOMM sockets
 126  */
 127
 128 static struct pr_usrreqs        ng_btsocket_rfcomm_usrreqs = {
 129         .pru_abort =            ng_btsocket_rfcomm_abort,
 130         .pru_accept =           ng_btsocket_rfcomm_accept,
 131         .pru_attach =           ng_btsocket_rfcomm_attach,
 132         .pru_bind =             ng_btsocket_rfcomm_bind,
 133         .pru_connect =          ng_btsocket_rfcomm_connect,
 134         .pru_control =          ng_btsocket_rfcomm_control,
 135         .pru_detach =           ng_btsocket_rfcomm_detach,
 136         .pru_disconnect =       ng_btsocket_rfcomm_disconnect,
 137         .pru_listen =           ng_btsocket_rfcomm_listen,
 138         .pru_peeraddr =         ng_btsocket_rfcomm_peeraddr,
 139         .pru_send =             ng_btsocket_rfcomm_send,
 140         .pru_shutdown =         NULL,
 141         .pru_sockaddr =         ng_btsocket_rfcomm_sockaddr,
 142         .pru_close =            ng_btsocket_rfcomm_close,
 143 };
 144
 145 /*
 146  * Bluetooth SEQPACKET SCO sockets
 147  */
 148
 149 static struct pr_usrreqs        ng_btsocket_sco_usrreqs = {
 150         .pru_abort =            ng_btsocket_sco_abort,
 151         .pru_accept =           ng_btsocket_sco_accept,
 152         .pru_attach =           ng_btsocket_sco_attach,
 153         .pru_bind =             ng_btsocket_sco_bind,
 154         .pru_connect =          ng_btsocket_sco_connect,
 155         .pru_control =          ng_btsocket_sco_control,
 156         .pru_detach =           ng_btsocket_sco_detach,
 157         .pru_disconnect =       ng_btsocket_sco_disconnect,
 158         .pru_listen =           ng_btsocket_sco_listen,
 159         .pru_peeraddr =         ng_btsocket_sco_peeraddr,
 160         .pru_send =             ng_btsocket_sco_send,
 161         .pru_shutdown =         NULL,
 162         .pru_sockaddr =         ng_btsocket_sco_sockaddr,
 163         .pru_close =            ng_btsocket_sco_close,
 164 };
 165
 166 /*
 167  * Definitions of protocols supported in the BLUETOOTH domain
 168  */
 169
 170 static struct protosw           ng_btsocket_protosw[] = {
 171 {
 172         .pr_type =              SOCK_RAW,
 173         .pr_domain =            &ng_btsocket_domain,
 174         .pr_protocol =          BLUETOOTH_PROTO_HCI,
 175         .pr_flags =             PR_ATOMIC|PR_ADDR,
 176         .pr_ctloutput =         ng_btsocket_hci_raw_ctloutput,
 177         .pr_init =              ng_btsocket_hci_raw_init,
 178         .pr_usrreqs =           &ng_btsocket_hci_raw_usrreqs,
 179 },
 180 {
 181         .pr_type =              SOCK_RAW,
 182         .pr_domain =            &ng_btsocket_domain,
 183         .pr_protocol =          BLUETOOTH_PROTO_L2CAP,
 184         .pr_flags =             PR_ATOMIC|PR_ADDR,
 185         .pr_init =              ng_btsocket_l2cap_raw_init,
 186         .pr_usrreqs =           &ng_btsocket_l2cap_raw_usrreqs,
 187 },
 188 {
 189         .pr_type =              SOCK_SEQPACKET,
 190         .pr_domain =            &ng_btsocket_domain,
 191         .pr_protocol =          BLUETOOTH_PROTO_L2CAP,
 192         .pr_flags =             PR_ATOMIC|PR_CONNREQUIRED,
 193         .pr_ctloutput =         ng_btsocket_l2cap_ctloutput,
 194         .pr_init =              ng_btsocket_l2cap_init,
 195         .pr_usrreqs =           &ng_btsocket_l2cap_usrreqs,
 196 },
 197 {
 198         .pr_type =              SOCK_STREAM,
 199         .pr_domain =            &ng_btsocket_domain,
 200         .pr_protocol =          BLUETOOTH_PROTO_RFCOMM,
 201         .pr_flags =             PR_CONNREQUIRED,
 202         .pr_ctloutput =         ng_btsocket_rfcomm_ctloutput,
 203         .pr_init =              ng_btsocket_rfcomm_init,
 204         .pr_usrreqs =           &ng_btsocket_rfcomm_usrreqs,
 205 },
 206 {
 207         .pr_type =              SOCK_SEQPACKET,
 208         .pr_domain =            &ng_btsocket_domain,
 209         .pr_protocol =          BLUETOOTH_PROTO_SCO,
 210         .pr_flags =             PR_ATOMIC|PR_CONNREQUIRED,
 211         .pr_ctloutput =         ng_btsocket_sco_ctloutput,
 212         .pr_init =              ng_btsocket_sco_init,
 213         .pr_usrreqs =           &ng_btsocket_sco_usrreqs,
 214 },
 215 };
 216 #define ng_btsocket_protosw_size \
 217         (sizeof(ng_btsocket_protosw)/sizeof(ng_btsocket_protosw[0]))
 218 #define ng_btsocket_protosw_end \
 219         &ng_btsocket_protosw[ng_btsocket_protosw_size]
 220
 221 /*
 222  * BLUETOOTH domain
 223  */
 224
 225 static struct domain ng_btsocket_domain = {
 226         .dom_family =           AF_BLUETOOTH,
 227         .dom_name =             "bluetooth",
 228         .dom_protosw =          ng_btsocket_protosw,
 229         .dom_protoswNPROTOSW =  ng_btsocket_protosw_end
 230 };
 231
 232 /*
 233  * Socket sysctl tree
 234  */
 235
 236 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW,
 237         0, "Bluetooth HCI sockets family");
 238 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW,
 239         0, "Bluetooth L2CAP sockets family");
 240 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW,
 241         0, "Bluetooth RFCOMM sockets family");
 242 SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets, CTLFLAG_RW,
 243         0, "Bluetooth SCO sockets family");
 244
 245 /*
 246  * Module
 247  */
 248
 249 static moduledata_t     ng_btsocket_mod = {
 250         "ng_btsocket",
 251         ng_btsocket_modevent,
 252         NULL
 253 };
 254
 255 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
 256         SI_ORDER_ANY);
 257 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
 258 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
 259         NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
 260 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
 261         NG_ABI_VERSION, NG_ABI_VERSION);
 262
 263 /*
 264  * Handle loading and unloading for this node type.
 265  * This is to handle auxiliary linkages (e.g protocol domain addition).
 266  */
 267
 268 static int
 269 ng_btsocket_modevent(module_t mod, int event, void *data)
 270 {
 271         int     error = 0;
 272
 273         switch (event) {
 274         case MOD_LOAD:
 275                 break;
 276
 277         case MOD_UNLOAD:
 278                 /* XXX can't unload protocol domain yet */
 279                 error = EBUSY;
 280                 break;
 281
 282         default:
 283                 error = EOPNOTSUPP;
 284                 break;
 285         }
 286
 287         return (error);
 288 } /* ng_btsocket_modevent */
 289
 290 VNET_DOMAIN_SET(ng_btsocket_);