sys/netgraph7/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: 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/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 "ng_message.h"
  49 #include "netgraph.h"
  50 #include "bluetooth/include/ng_bluetooth.h"
  51 #include "bluetooth/include/ng_hci.h"
  52 #include "bluetooth/include/ng_l2cap.h"
  53 #include "bluetooth/include/ng_btsocket.h"
  54 #include "bluetooth/include/ng_btsocket_hci_raw.h"
  55 #include "bluetooth/include/ng_btsocket_l2cap.h"
  56 #include "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         .pru_close =            ng_btsocket_hci_raw_close,
  78 };
  79
  80 /*
  81  * Bluetooth raw L2CAP sockets
  82  */
  83
  84 static struct pr_usrreqs        ng_btsocket_l2cap_raw_usrreqs = {
  85         .pru_abort =            ng_btsocket_l2cap_raw_abort,
  86         .pru_attach =           ng_btsocket_l2cap_raw_attach,
  87         .pru_bind =             ng_btsocket_l2cap_raw_bind,
  88         .pru_connect =          ng_btsocket_l2cap_raw_connect,
  89         .pru_control =          ng_btsocket_l2cap_raw_control,
  90         .pru_detach =           ng_btsocket_l2cap_raw_detach,
  91         .pru_disconnect =       ng_btsocket_l2cap_raw_disconnect,
  92         .pru_peeraddr =         ng_btsocket_l2cap_raw_peeraddr,
  93         .pru_send =             ng_btsocket_l2cap_raw_send,
  94         .pru_shutdown =         NULL,
  95         .pru_sockaddr =         ng_btsocket_l2cap_raw_sockaddr,
  96         .pru_close =            ng_btsocket_l2cap_raw_close,
  97 };
  98
  99 /*
 100  * Bluetooth SEQPACKET L2CAP sockets
 101  */
 102
 103 static struct pr_usrreqs        ng_btsocket_l2cap_usrreqs = {
 104         .pru_abort =            ng_btsocket_l2cap_abort,
 105         .pru_accept =           ng_btsocket_l2cap_accept,
 106         .pru_attach =           ng_btsocket_l2cap_attach,
 107         .pru_bind =             ng_btsocket_l2cap_bind,
 108         .pru_connect =          ng_btsocket_l2cap_connect,
 109         .pru_control =          ng_btsocket_l2cap_control,
 110         .pru_detach =           ng_btsocket_l2cap_detach,
 111         .pru_disconnect =       ng_btsocket_l2cap_disconnect,
 112         .pru_listen =           ng_btsocket_l2cap_listen,
 113         .pru_peeraddr =         ng_btsocket_l2cap_peeraddr,
 114         .pru_send =             ng_btsocket_l2cap_send,
 115         .pru_shutdown =         NULL,
 116         .pru_sockaddr =         ng_btsocket_l2cap_sockaddr,
 117         .pru_close =            ng_btsocket_l2cap_close,
 118 };
 119
 120 /*
 121  * Bluetooth STREAM RFCOMM sockets
 122  */
 123
 124 static struct pr_usrreqs        ng_btsocket_rfcomm_usrreqs = {
 125         .pru_abort =            ng_btsocket_rfcomm_abort,
 126         .pru_accept =           ng_btsocket_rfcomm_accept,
 127         .pru_attach =           ng_btsocket_rfcomm_attach,
 128         .pru_bind =             ng_btsocket_rfcomm_bind,
 129         .pru_connect =          ng_btsocket_rfcomm_connect,
 130         .pru_control =          ng_btsocket_rfcomm_control,
 131         .pru_detach =           ng_btsocket_rfcomm_detach,
 132         .pru_disconnect =       ng_btsocket_rfcomm_disconnect,
 133         .pru_listen =           ng_btsocket_rfcomm_listen,
 134         .pru_peeraddr =         ng_btsocket_rfcomm_peeraddr,
 135         .pru_send =             ng_btsocket_rfcomm_send,
 136         .pru_shutdown =         NULL,
 137         .pru_sockaddr =         ng_btsocket_rfcomm_sockaddr,
 138         .pru_close =            ng_btsocket_rfcomm_close,
 139 };
 140
 141 /*
 142  * Definitions of protocols supported in the BLUETOOTH domain
 143  */
 144
 145 static struct protosw           ng_btsocket_protosw[] = {
 146 {
 147         .pr_type =              SOCK_RAW,
 148         .pr_domain =            &ng_btsocket_domain,
 149         .pr_protocol =          BLUETOOTH_PROTO_HCI,
 150         .pr_flags =             PR_ATOMIC|PR_ADDR,
 151         .pr_ctloutput =         ng_btsocket_hci_raw_ctloutput,
 152         .pr_init =              ng_btsocket_hci_raw_init,
 153         .pr_usrreqs =           &ng_btsocket_hci_raw_usrreqs,
 154 },
 155 {
 156         .pr_type =              SOCK_RAW,
 157         .pr_domain =            &ng_btsocket_domain,
 158         .pr_protocol =          BLUETOOTH_PROTO_L2CAP,
 159         .pr_flags =             PR_ATOMIC|PR_ADDR,
 160         .pr_init =              ng_btsocket_l2cap_raw_init,
 161         .pr_usrreqs =           &ng_btsocket_l2cap_raw_usrreqs,
 162 },
 163 {
 164         .pr_type =              SOCK_SEQPACKET,
 165         .pr_domain =            &ng_btsocket_domain,
 166         .pr_protocol =          BLUETOOTH_PROTO_L2CAP,
 167         .pr_flags =             PR_ATOMIC|PR_CONNREQUIRED,
 168         .pr_ctloutput =         ng_btsocket_l2cap_ctloutput,
 169         .pr_init =              ng_btsocket_l2cap_init,
 170         .pr_usrreqs =           &ng_btsocket_l2cap_usrreqs,
 171 },
 172 {
 173         .pr_type =              SOCK_STREAM,
 174         .pr_domain =            &ng_btsocket_domain,
 175         .pr_protocol =          BLUETOOTH_PROTO_RFCOMM,
 176         .pr_flags =             PR_CONNREQUIRED,
 177         .pr_ctloutput =         ng_btsocket_rfcomm_ctloutput,
 178         .pr_init =              ng_btsocket_rfcomm_init,
 179         .pr_usrreqs =           &ng_btsocket_rfcomm_usrreqs,
 180 }
 181 };
 182 #define ng_btsocket_protosw_size NELEM(ng_btsocket_protosw)
 183 #define ng_btsocket_protosw_end \
 184         &ng_btsocket_protosw[ng_btsocket_protosw_size]
 185
 186 /*
 187  * BLUETOOTH domain
 188  */
 189
 190 struct domain                   ng_btsocket_domain = {
 191         .dom_family =           AF_BLUETOOTH,
 192         .dom_name =             "bluetooth",
 193         .dom_protosw =          ng_btsocket_protosw,
 194         .dom_protoswNPROTOSW =  ng_btsocket_protosw_end
 195 };
 196
 197 /*
 198  * Socket sysctl tree
 199  */
 200
 201 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW,
 202         0, "Bluetooth HCI sockets family");
 203 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW,
 204         0, "Bluetooth L2CAP sockets family");
 205 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW,
 206         0, "Bluetooth RFCOMM sockets family");
 207
 208 /*
 209  * Module
 210  */
 211
 212 static moduledata_t     ng_btsocket_mod = {
 213         "ng_btsocket",
 214         ng_btsocket_modevent,
 215         NULL
 216 };
 217
 218 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
 219         SI_ORDER_ANY);
 220 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
 221 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
 222         NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
 223 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
 224         NG_ABI_VERSION, NG_ABI_VERSION);
 225
 226 /*
 227  * Handle loading and unloading for this node type.
 228  * This is to handle auxiliary linkages (e.g protocol domain addition).
 229  */
 230
 231 static int
 232 ng_btsocket_modevent(module_t mod, int event, void *data)
 233 {
 234         int     error = 0;
 235
 236         switch (event) {
 237         case MOD_LOAD:
 238                 net_add_domain(&ng_btsocket_domain);
 239                 break;
 240
 241         case MOD_UNLOAD:
 242                 /* XXX can't unload protocol domain yet */
 243                 error = EBUSY;
 244                 break;
 245
 246         default:
 247                 error = EOPNOTSUPP;
 248                 break;
 249         }
 250
 251         return (error);
 252 } /* ng_btsocket_modevent */
 253