FreeBSD/Linux Kernel Cross Reference
sys/netgraph/bluetooth/common/ng_bluetooth.c

     /*
      * bluetooth.c
      */
     
     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
      * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $Id: ng_bluetooth.c,v 1.3 2003/04/26 22:37:31 max Exp $
     * $FreeBSD$
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/errno.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <sys/sysctl.h>
    
    #include <netgraph/bluetooth/include/ng_bluetooth.h>
    
    /*
     * Bluetooth stack sysctl globals
     */
    
    static u_int32_t        bluetooth_hci_command_timeout_value  = 5;   /* sec */
    static u_int32_t        bluetooth_hci_connect_timeout_value  = 60;  /* sec */
    static u_int32_t        bluetooth_hci_max_neighbor_age_value = 600; /* sec */
    static u_int32_t        bluetooth_l2cap_rtx_timeout_value    = 60;  /* sec */
    static u_int32_t        bluetooth_l2cap_ertx_timeout_value   = 300; /* sec */
    static u_int32_t        bluetooth_sco_rtx_timeout_value      = 60;  /* sec */
    
    /*
     * Define sysctl tree that shared by other parts of Bluetooth stack
     */
    
    SYSCTL_NODE(_net, OID_AUTO, bluetooth, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
        "Bluetooth family");
    SYSCTL_INT(_net_bluetooth, OID_AUTO, version,
            CTLFLAG_RD, SYSCTL_NULL_INT_PTR, NG_BLUETOOTH_VERSION, "Version of the stack");
    
    /* 
     * HCI
     */
    
    SYSCTL_NODE(_net_bluetooth, OID_AUTO, hci, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
        "Bluetooth HCI family");
    
    static int
    bluetooth_set_hci_command_timeout_value(SYSCTL_HANDLER_ARGS)
    {
            u_int32_t       value;
            int             error;
    
            value = bluetooth_hci_command_timeout_value;
            error = sysctl_handle_int(oidp, &value, 0, req);
            if (error == 0 && req->newptr != NULL) {
                    if (value > 0)
                            bluetooth_hci_command_timeout_value = value;
                    else
                            error = EINVAL;
            }
    
            return (error);
    } /* bluetooth_set_hci_command_timeout_value */
    
    SYSCTL_PROC(_net_bluetooth_hci, OID_AUTO, command_timeout,
            CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
            &bluetooth_hci_command_timeout_value, 5, 
            bluetooth_set_hci_command_timeout_value,
            "I", "HCI command timeout (sec)");
    
    static int
    bluetooth_set_hci_connect_timeout_value(SYSCTL_HANDLER_ARGS)
    {
            u_int32_t       value;
           int             error;
   
           value = bluetooth_hci_connect_timeout_value;
           error = sysctl_handle_int(oidp, &value, 0, req);
           if (error == 0 && req->newptr != NULL) {
                   if (0 < value && value <= bluetooth_l2cap_rtx_timeout_value)
                           bluetooth_hci_connect_timeout_value = value;
                   else
                           error = EINVAL;
           }
   
           return (error);
   } /* bluetooth_set_hci_connect_timeout_value */
   
   SYSCTL_PROC(_net_bluetooth_hci, OID_AUTO, connection_timeout, 
           CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
           &bluetooth_hci_connect_timeout_value, 60, 
           bluetooth_set_hci_connect_timeout_value,
           "I", "HCI connect timeout (sec)");
   
   SYSCTL_UINT(_net_bluetooth_hci, OID_AUTO, max_neighbor_age, CTLFLAG_RW,
           &bluetooth_hci_max_neighbor_age_value, 600,
           "Maximal HCI neighbor cache entry age (sec)");
   
   /* 
    * L2CAP
    */
   
   SYSCTL_NODE(_net_bluetooth, OID_AUTO, l2cap, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
       "Bluetooth L2CAP family");
   
   static int
   bluetooth_set_l2cap_rtx_timeout_value(SYSCTL_HANDLER_ARGS)
   {
           u_int32_t       value;
           int             error;
   
           value = bluetooth_l2cap_rtx_timeout_value;
           error = sysctl_handle_int(oidp, &value, 0, req);
           if (error == 0 && req->newptr != NULL) {
                   if (bluetooth_hci_connect_timeout_value <= value &&
                       value <= bluetooth_l2cap_ertx_timeout_value)
                           bluetooth_l2cap_rtx_timeout_value = value;
                   else
                           error = EINVAL;
           }
   
           return (error);
   } /* bluetooth_set_l2cap_rtx_timeout_value */
   
   SYSCTL_PROC(_net_bluetooth_l2cap, OID_AUTO, rtx_timeout,
           CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
           &bluetooth_l2cap_rtx_timeout_value, 60,
           bluetooth_set_l2cap_rtx_timeout_value,
           "I", "L2CAP RTX timeout (sec)");
   
   static int
   bluetooth_set_l2cap_ertx_timeout_value(SYSCTL_HANDLER_ARGS)
   {
           u_int32_t       value;
           int             error;
   
           value = bluetooth_l2cap_ertx_timeout_value;
           error = sysctl_handle_int(oidp, &value, 0, req);
           if (error == 0 && req->newptr != NULL) {
                   if (value >= bluetooth_l2cap_rtx_timeout_value)
                           bluetooth_l2cap_ertx_timeout_value = value;
                   else
                           error = EINVAL;
           }
   
           return (error);
   } /* bluetooth_set_l2cap_ertx_timeout_value */
   
   SYSCTL_PROC(_net_bluetooth_l2cap, OID_AUTO, ertx_timeout,
           CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
           &bluetooth_l2cap_ertx_timeout_value, 300,
           bluetooth_set_l2cap_ertx_timeout_value,
           "I", "L2CAP ERTX timeout (sec)");
   
   /*
    * Return various sysctl values
    */
   
   u_int32_t
   bluetooth_hci_command_timeout(void)
   {
           return (bluetooth_hci_command_timeout_value * hz);
   } /* bluetooth_hci_command_timeout */
   
   u_int32_t
   bluetooth_hci_connect_timeout(void)
   {
           return (bluetooth_hci_connect_timeout_value * hz);
   } /* bluetooth_hci_connect_timeout */
   
   u_int32_t
   bluetooth_hci_max_neighbor_age(void)
   {
           return (bluetooth_hci_max_neighbor_age_value);
   } /* bluetooth_hci_max_neighbor_age */
   
   u_int32_t
   bluetooth_l2cap_rtx_timeout(void)
   {
           return (bluetooth_l2cap_rtx_timeout_value * hz);
   } /* bluetooth_l2cap_rtx_timeout */
   
   u_int32_t
   bluetooth_l2cap_ertx_timeout(void)
   {
           return (bluetooth_l2cap_ertx_timeout_value * hz);
   } /* bluetooth_l2cap_ertx_timeout */
   
   u_int32_t
   bluetooth_sco_rtx_timeout(void)
   {
           return (bluetooth_sco_rtx_timeout_value * hz);
   } /* bluetooth_sco_rtx_timeout */
   
   /* 
    * RFCOMM
    */
   
   SYSCTL_NODE(_net_bluetooth, OID_AUTO, rfcomm, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
       "Bluetooth RFCOMM family");
   
   /* 
    * SCO
    */
   
   SYSCTL_NODE(_net_bluetooth, OID_AUTO, sco, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 
       "Bluetooth SCO family");
   
   static int
   bluetooth_set_sco_rtx_timeout_value(SYSCTL_HANDLER_ARGS)
   {
           u_int32_t       value;
           int             error;
   
           value = bluetooth_sco_rtx_timeout_value;
           error = sysctl_handle_int(oidp, &value, 0, req);
           if (error == 0 && req->newptr != NULL) {
                   if (bluetooth_hci_connect_timeout_value <= value)
                           bluetooth_sco_rtx_timeout_value = value;
                   else
                           error = EINVAL;
           }
   
           return (error);
   } /* bluetooth_set_sco_rtx_timeout_value */
   
   SYSCTL_PROC(_net_bluetooth_sco, OID_AUTO, rtx_timeout,
           CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
           &bluetooth_sco_rtx_timeout_value, 60,
           bluetooth_set_sco_rtx_timeout_value,
           "I", "SCO RTX timeout (sec)");
   
   /*
    * Handle loading and unloading for this code.
    */
   
   static int
   bluetooth_modevent(module_t mod, int event, void *data)
   {
           int     error = 0;
   
           switch (event) {
           case MOD_LOAD:
                   break; 
   
           case MOD_UNLOAD:
                   break; 
   
           default:
                   error = EOPNOTSUPP;
                   break;
           }
   
           return (error);
   } /* bluetooth_modevent */
   
   /*
    * Module
    */
   
   static moduledata_t     bluetooth_mod = {
           "ng_bluetooth",
           bluetooth_modevent,
           NULL
   };
   
   DECLARE_MODULE(ng_bluetooth, bluetooth_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
   MODULE_VERSION(ng_bluetooth, NG_BLUETOOTH_VERSION);

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