usr.sbin/sdpd/lan.c

   1 /* $NetBSD: lan.c,v 1.2 2007/11/09 20:08:41 plunky Exp $ */
   2 /* $DragonFly: src/usr.sbin/sdpd/lan.c,v 1.1 2008/01/06 21:51:30 hasso Exp $ */
   3
   4 /*
   5  * lan.c
   6  *
   7  * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  * $Id: lan.c,v 1.2 2007/11/30 07:39:37 griffin Exp $
  32  * $FreeBSD: src/usr.sbin/bluetooth/sdpd/lan.c,v 1.1 2004/01/20 20:48:26 emax Exp $
  33  */
  34
  35 #include <arpa/inet.h>
  36 #include <sys/queue.h>
  37 #include <bluetooth.h>
  38 #include <sdp.h>
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include "profile.h"
  42 #include "provider.h"
  43
  44 static int32_t
  45 lan_profile_create_service_class_id_list(
  46                 uint8_t *buf, uint8_t const * const eob,
  47                 uint8_t const *data, uint32_t datalen)
  48 {
  49         static uint16_t service_classes[] = {
  50                 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP
  51         };
  52
  53         return (common_profile_create_service_class_id_list(
  54                         buf, eob,
  55                         (uint8_t const *) service_classes,
  56                         sizeof(service_classes)));
  57 }
  58
  59 static int32_t
  60 lan_profile_create_bluetooth_profile_descriptor_list(
  61                 uint8_t *buf, uint8_t const * const eob,
  62                 uint8_t const *data, uint32_t datalen)
  63 {
  64         static uint16_t profile_descriptor_list[] = {
  65                 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP,
  66                 0x0100
  67         };
  68
  69         return (common_profile_create_bluetooth_profile_descriptor_list(
  70                         buf, eob,
  71                         (uint8_t const *) profile_descriptor_list,
  72                         sizeof(profile_descriptor_list)));
  73 }
  74
  75 static int32_t
  76 lan_profile_create_service_name(
  77                 uint8_t *buf, uint8_t const * const eob,
  78                 uint8_t const *data, uint32_t datalen)
  79 {
  80         static char     service_name[] = "LAN Access using PPP";
  81
  82         return (common_profile_create_string8(
  83                         buf, eob,
  84                         (uint8_t const *) service_name, strlen(service_name)));
  85 }
  86
  87 static int32_t
  88 lan_profile_create_protocol_descriptor_list(
  89                 uint8_t *buf, uint8_t const * const eob,
  90                 uint8_t const *data, uint32_t datalen)
  91 {
  92         provider_t const        *provider = (provider_t const *) data;
  93         sdp_lan_profile_p       lan = (sdp_lan_profile_p) provider->data;
  94
  95         return (rfcomm_profile_create_protocol_descriptor_list(
  96                         buf, eob,
  97                         (uint8_t const *) &lan->server_channel, 1));
  98 }
  99
 100 static int32_t
 101 lan_profile_create_service_availability(
 102                 uint8_t *buf, uint8_t const * const eob,
 103                 uint8_t const *data, uint32_t datalen)
 104 {
 105         provider_t const        *provider = (provider_t const *) data;
 106         sdp_lan_profile_p       lan = (sdp_lan_profile_p) provider->data;
 107
 108         if (buf + 2 > eob)
 109                 return (-1);
 110
 111         SDP_PUT8(SDP_DATA_UINT8, buf);
 112         SDP_PUT8(lan->load_factor, buf);
 113
 114         return (2);
 115 }
 116
 117 static int32_t
 118 lan_profile_create_ip_subnet(
 119                 uint8_t *buf, uint8_t const * const eob,
 120                 uint8_t const *data, uint32_t datalen)
 121 {
 122         provider_t const        *provider = (provider_t const *) data;
 123         sdp_lan_profile_p       lan = (sdp_lan_profile_p) provider->data;
 124         char                    net[32];
 125         int32_t                 len;
 126
 127         len = snprintf(net, sizeof(net), "%s/%d",
 128                         inet_ntoa(* (struct in_addr *) &lan->ip_subnet),
 129                         lan->ip_subnet_radius);
 130
 131         if (len < 0 || buf + 2 + len > eob)
 132                 return (-1);
 133
 134         SDP_PUT8(SDP_DATA_STR8, buf);
 135         SDP_PUT8(len, buf);
 136         memcpy(buf, net, len);
 137
 138         return (2 + len);
 139 }
 140
 141 static int32_t
 142 lan_profile_data_valid(uint8_t const *data, uint32_t datalen)
 143 {
 144         sdp_lan_profile_t const *lan = (sdp_lan_profile_t const *) data;
 145
 146         if (lan->server_channel < 1 ||
 147             lan->server_channel > 30 ||
 148             lan->ip_subnet_radius > 32)
 149                 return (0);
 150
 151         return (1);
 152 }
 153
 154 static attr_t   lan_profile_attrs[] = {
 155         { SDP_ATTR_SERVICE_RECORD_HANDLE,
 156           common_profile_create_service_record_handle },
 157         { SDP_ATTR_SERVICE_CLASS_ID_LIST,
 158           lan_profile_create_service_class_id_list },
 159         { SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST,
 160           lan_profile_create_bluetooth_profile_descriptor_list },
 161         { SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST,
 162           common_profile_create_language_base_attribute_id_list },
 163         { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET,
 164           lan_profile_create_service_name },
 165         { SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST,
 166           lan_profile_create_protocol_descriptor_list },
 167         { SDP_ATTR_SERVICE_AVAILABILITY,
 168           lan_profile_create_service_availability },
 169         { SDP_ATTR_IP_SUBNET,
 170           lan_profile_create_ip_subnet },
 171         { 0, NULL } /* end entry */
 172 };
 173
 174 static uint16_t lan_profile_uuids[] = {
 175         SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP,
 176         SDP_UUID_PROTOCOL_L2CAP,
 177         SDP_UUID_PROTOCOL_RFCOMM,
 178 };
 179
 180 profile_t       lan_profile_descriptor = {
 181         lan_profile_uuids,
 182         sizeof(lan_profile_uuids),
 183         sizeof(sdp_lan_profile_t),
 184         lan_profile_data_valid,
 185         (attr_t const * const) &lan_profile_attrs
 186 };