ng_btsocket.c

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    1 /*
    2  * ng_btsocket.c
    3  */
    4 
    5 /*-
    6  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    7  *
    8  * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
    9  * All rights reserved.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  * $Id: ng_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $
   33  * $FreeBSD$
   34  */
   35 
   36 #include <sys/param.h>
   37 #include <sys/systm.h>
   38 #include <sys/bitstring.h>
   39 #include <sys/errno.h>
   40 #include <sys/domain.h>
   41 #include <sys/kernel.h>
   42 #include <sys/lock.h>
   43 #include <sys/mbuf.h>
   44 #include <sys/mutex.h>
   45 #include <sys/protosw.h>
   46 #include <sys/socket.h>
   47 #include <sys/socketvar.h>
   48 #include <sys/sysctl.h>
   49 #include <sys/taskqueue.h>
   50 
   51 #include <net/vnet.h>
   52 
   53 #include <netgraph/ng_message.h>
   54 #include <netgraph/netgraph.h>
   55 #include <netgraph/bluetooth/include/ng_bluetooth.h>
   56 #include <netgraph/bluetooth/include/ng_hci.h>
   57 #include <netgraph/bluetooth/include/ng_l2cap.h>
   58 #include <netgraph/bluetooth/include/ng_btsocket.h>
   59 #include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h>
   60 #include <netgraph/bluetooth/include/ng_btsocket_l2cap.h>
   61 #include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h>
   62 #include <netgraph/bluetooth/include/ng_btsocket_sco.h>
   63 
   64 static int                      ng_btsocket_modevent (module_t, int, void *);
   65 
   66 /* 
   67  * Definitions of protocols supported in the BLUETOOTH domain 
   68  */
   69 
   70 /* Bluetooth raw HCI sockets */
   71 static struct protosw ng_btsocket_hci_raw_protosw = {
   72         .pr_type =              SOCK_RAW,
   73         .pr_protocol =          BLUETOOTH_PROTO_HCI,
   74         .pr_flags =             PR_ATOMIC|PR_ADDR,
   75         .pr_ctloutput =         ng_btsocket_hci_raw_ctloutput,
   76         .pr_abort =             ng_btsocket_hci_raw_abort,
   77         .pr_attach =            ng_btsocket_hci_raw_attach,
   78         .pr_bind =              ng_btsocket_hci_raw_bind,
   79         .pr_connect =           ng_btsocket_hci_raw_connect,
   80         .pr_control =           ng_btsocket_hci_raw_control,
   81         .pr_detach =            ng_btsocket_hci_raw_detach,
   82         .pr_disconnect =        ng_btsocket_hci_raw_disconnect,
   83         .pr_peeraddr =          ng_btsocket_hci_raw_peeraddr,
   84         .pr_send =              ng_btsocket_hci_raw_send,
   85         .pr_sockaddr =          ng_btsocket_hci_raw_sockaddr,
   86         .pr_close =             ng_btsocket_hci_raw_close,
   87 };
   88 
   89 /* Bluetooth raw L2CAP sockets */
   90 static struct protosw ng_btsocket_l2cap_raw_protosw = {
   91         .pr_type =              SOCK_RAW,
   92         .pr_protocol =          BLUETOOTH_PROTO_L2CAP,
   93         .pr_flags =             PR_ATOMIC|PR_ADDR,
   94         .pr_abort =             ng_btsocket_l2cap_raw_abort,
   95         .pr_attach =            ng_btsocket_l2cap_raw_attach,
   96         .pr_bind =              ng_btsocket_l2cap_raw_bind,
   97         .pr_connect =           ng_btsocket_l2cap_raw_connect,
   98         .pr_control =           ng_btsocket_l2cap_raw_control,
   99         .pr_detach =            ng_btsocket_l2cap_raw_detach,
  100         .pr_disconnect =        ng_btsocket_l2cap_raw_disconnect,
  101         .pr_peeraddr =          ng_btsocket_l2cap_raw_peeraddr,
  102         .pr_send =              ng_btsocket_l2cap_raw_send,
  103         .pr_sockaddr =          ng_btsocket_l2cap_raw_sockaddr,
  104         .pr_close =             ng_btsocket_l2cap_raw_close,
  105 };
  106 
  107 /* Bluetooth SEQPACKET L2CAP sockets */
  108 static struct protosw ng_btsocket_l2cap_protosw = {
  109         .pr_type =              SOCK_SEQPACKET,
  110         .pr_protocol =          BLUETOOTH_PROTO_L2CAP,
  111         .pr_flags =             PR_ATOMIC|PR_CONNREQUIRED,
  112         .pr_ctloutput =         ng_btsocket_l2cap_ctloutput,
  113         .pr_abort =             ng_btsocket_l2cap_abort,
  114         .pr_accept =            ng_btsocket_l2cap_accept,
  115         .pr_attach =            ng_btsocket_l2cap_attach,
  116         .pr_bind =              ng_btsocket_l2cap_bind,
  117         .pr_connect =           ng_btsocket_l2cap_connect,
  118         .pr_control =           ng_btsocket_l2cap_control,
  119         .pr_detach =            ng_btsocket_l2cap_detach,
  120         .pr_disconnect =        ng_btsocket_l2cap_disconnect,
  121         .pr_listen =            ng_btsocket_l2cap_listen,
  122         .pr_peeraddr =          ng_btsocket_l2cap_peeraddr,
  123         .pr_send =              ng_btsocket_l2cap_send,
  124         .pr_sockaddr =          ng_btsocket_l2cap_sockaddr,
  125         .pr_close =             ng_btsocket_l2cap_close,
  126 };
  127 
  128 /* Bluetooth STREAM RFCOMM sockets */
  129 static struct protosw ng_btsocket_rfcomm_protosw = {
  130         .pr_type =              SOCK_STREAM,
  131         .pr_protocol =          BLUETOOTH_PROTO_RFCOMM,
  132         .pr_flags =             PR_CONNREQUIRED,
  133         .pr_ctloutput =         ng_btsocket_rfcomm_ctloutput,
  134         .pr_abort =             ng_btsocket_rfcomm_abort,
  135         .pr_accept =            ng_btsocket_rfcomm_accept,
  136         .pr_attach =            ng_btsocket_rfcomm_attach,
  137         .pr_bind =              ng_btsocket_rfcomm_bind,
  138         .pr_connect =           ng_btsocket_rfcomm_connect,
  139         .pr_control =           ng_btsocket_rfcomm_control,
  140         .pr_detach =            ng_btsocket_rfcomm_detach,
  141         .pr_disconnect =        ng_btsocket_rfcomm_disconnect,
  142         .pr_listen =            ng_btsocket_rfcomm_listen,
  143         .pr_peeraddr =          ng_btsocket_rfcomm_peeraddr,
  144         .pr_send =              ng_btsocket_rfcomm_send,
  145         .pr_sockaddr =          ng_btsocket_rfcomm_sockaddr,
  146         .pr_close =             ng_btsocket_rfcomm_close,
  147 };
  148 
  149 /* Bluetooth SEQPACKET SCO sockets */
  150 static struct protosw ng_btsocket_sco_protosw = {
  151         .pr_type =              SOCK_SEQPACKET,
  152         .pr_protocol =          BLUETOOTH_PROTO_SCO,
  153         .pr_flags =             PR_ATOMIC|PR_CONNREQUIRED,
  154         .pr_ctloutput =         ng_btsocket_sco_ctloutput,
  155         .pr_abort =             ng_btsocket_sco_abort,
  156         .pr_accept =            ng_btsocket_sco_accept,
  157         .pr_attach =            ng_btsocket_sco_attach,
  158         .pr_bind =              ng_btsocket_sco_bind,
  159         .pr_connect =           ng_btsocket_sco_connect,
  160         .pr_control =           ng_btsocket_sco_control,
  161         .pr_detach =            ng_btsocket_sco_detach,
  162         .pr_disconnect =        ng_btsocket_sco_disconnect,
  163         .pr_listen =            ng_btsocket_sco_listen,
  164         .pr_peeraddr =          ng_btsocket_sco_peeraddr,
  165         .pr_send =              ng_btsocket_sco_send,
  166         .pr_sockaddr =          ng_btsocket_sco_sockaddr,
  167         .pr_close =             ng_btsocket_sco_close,
  168 };
  169 
  170 /*
  171  * BLUETOOTH domain
  172  */
  173 
  174 static struct domain ng_btsocket_domain = {
  175         .dom_family =           AF_BLUETOOTH,
  176         .dom_name =             "bluetooth",
  177         .dom_nprotosw =         5,
  178         .dom_protosw = {
  179                 &ng_btsocket_hci_raw_protosw,
  180                 &ng_btsocket_l2cap_raw_protosw,
  181                 &ng_btsocket_l2cap_protosw,
  182                 &ng_btsocket_rfcomm_protosw,
  183                 &ng_btsocket_sco_protosw,
  184         },
  185 };
  186 
  187 /* 
  188  * Socket sysctl tree 
  189  */
  190 
  191 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets,
  192     CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
  193     "Bluetooth HCI sockets family");
  194 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets,
  195     CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
  196     "Bluetooth L2CAP sockets family");
  197 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets,
  198     CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
  199     "Bluetooth RFCOMM sockets family");
  200 SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets,
  201     CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
  202     "Bluetooth SCO sockets family");
  203 
  204 /* 
  205  * Module 
  206  */
  207 
  208 static moduledata_t     ng_btsocket_mod = {
  209         "ng_btsocket",
  210         ng_btsocket_modevent,
  211         NULL
  212 };
  213 
  214 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
  215         SI_ORDER_ANY);
  216 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
  217 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
  218         NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
  219 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
  220         NG_ABI_VERSION, NG_ABI_VERSION);
  221 
  222 /*
  223  * Handle loading and unloading for this node type.
  224  * This is to handle auxiliary linkages (e.g protocol domain addition).
  225  */
  226 
  227 static int  
  228 ng_btsocket_modevent(module_t mod, int event, void *data)
  229 {
  230         int     error = 0;
  231         
  232         switch (event) {
  233         case MOD_LOAD:
  234                 break;
  235 
  236         case MOD_UNLOAD:
  237                 /* XXX can't unload protocol domain yet */
  238                 error = EBUSY;
  239                 break;
  240 
  241         default:
  242                 error = EOPNOTSUPP;
  243                 break;
  244         }
  245 
  246         return (error);
  247 } /* ng_btsocket_modevent */
  248 
  249 DOMAIN_SET(ng_btsocket_);

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FreeBSD/Linux Kernel Cross Reference sys/netgraph/bluetooth/socket/ng_btsocket.c

FreeBSD/Linux Kernel Cross Reference
sys/netgraph/bluetooth/socket/ng_btsocket.c