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      1 /*
      2  * Copyright 2017, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 #pragma once
     17 
     18 // Ports
     19 #define PORT_BOOTP_SERVER 67
     20 #define PORT_BOOTP_CLIENT 68
     21 
     22 // Operations
     23 #define OP_BOOTREQUEST 1
     24 #define OP_BOOTREPLY   2
     25 
     26 // Flags
     27 #define FLAGS_BROADCAST 0x8000
     28 
     29 // Hardware address types
     30 #define HTYPE_ETHER    1
     31 
     32 // The first four bytes of options are a cookie to indicate that the payload are
     33 // DHCP options as opposed to some other BOOTP extension.
     34 #define OPT_COOKIE1          0x63
     35 #define OPT_COOKIE2          0x82
     36 #define OPT_COOKIE3          0x53
     37 #define OPT_COOKIE4          0x63
     38 
     39 // BOOTP/DHCP options - see RFC 2132
     40 #define OPT_PAD              0
     41 
     42 #define OPT_SUBNET_MASK      1     // 4 <ipaddr>
     43 #define OPT_TIME_OFFSET      2     // 4 <seconds>
     44 #define OPT_GATEWAY          3     // 4*n <ipaddr> * n
     45 #define OPT_DNS              6     // 4*n <ipaddr> * n
     46 #define OPT_DOMAIN_NAME      15    // n <domainnamestring>
     47 #define OPT_MTU              26    // 2 <mtu>
     48 #define OPT_BROADCAST_ADDR   28    // 4 <ipaddr>
     49 
     50 #define OPT_REQUESTED_IP     50    // 4 <ipaddr>
     51 #define OPT_LEASE_TIME       51    // 4 <seconds>
     52 #define OPT_MESSAGE_TYPE     53    // 1 <msgtype>
     53 #define OPT_SERVER_ID        54    // 4 <ipaddr>
     54 #define OPT_PARAMETER_LIST   55    // n <optcode> * n
     55 #define OPT_MESSAGE          56    // n <errorstring>
     56 #define OPT_T1               58    // 4 <renewal time value>
     57 #define OPT_T2               59    // 4 <rebinding time value>
     58 #define OPT_CLASS_ID         60    // n <opaque>
     59 #define OPT_CLIENT_ID        61    // n <opaque>
     60 #define OPT_END              255
     61 
     62 // DHCP message types
     63 #define DHCPDISCOVER         1
     64 #define DHCPOFFER            2
     65 #define DHCPREQUEST          3
     66 #define DHCPDECLINE          4
     67 #define DHCPACK              5
     68 #define DHCPNAK              6
     69 #define DHCPRELEASE          7
     70 #define DHCPINFORM           8
     71 
     72 
     73