Pavel S / UIPEthernet

mbed OS5

Fork of UIPEthernet by Zoltan Hudak

Dhcp.h@9:e55652bed36c, 2017-08-06 (annotated)

Committer:
pilotak
Date:
Sun Aug 06 16:01:26 2017 +0000
Revision:
9:e55652bed36c
Parent:
8:4acb22344932 
mBed OS5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 0:5350a66d5279 1 // DHCP Library v0.3 - April 25, 2009
hudakz 0:5350a66d5279 2 // Author: Jordan Terrell - blog.jordanterrell.com
hudakz 0:5350a66d5279 3 #ifndef Dhcp_h
hudakz 8:4acb22344932 4 #define Dhcp_h
hudakz 0:5350a66d5279 5
hudakz 8:4acb22344932 6 #include "UIPUdp.h"
hudakz 0:5350a66d5279 7
hudakz 0:5350a66d5279 8 /* DHCP state machine. */
hudakz 0:5350a66d5279 9
hudakz 8:4acb22344932 10 #define STATE_DHCP_START 0
hudakz 8:4acb22344932 11 #define STATE_DHCP_DISCOVER 1
hudakz 8:4acb22344932 12 #define STATE_DHCP_REQUEST 2
hudakz 8:4acb22344932 13 #define STATE_DHCP_LEASED 3
hudakz 8:4acb22344932 14 #define STATE_DHCP_REREQUEST 4
hudakz 8:4acb22344932 15 #define STATE_DHCP_RELEASE 5
hudakz 0:5350a66d5279 16
hudakz 8:4acb22344932 17 #define DHCP_FLAGSBROADCAST 0x8000
hudakz 0:5350a66d5279 18
hudakz 0:5350a66d5279 19 /* UDP port numbers for DHCP */
hudakz 0:5350a66d5279 20
hudakz 8:4acb22344932 21 #define DHCP_SERVER_PORT 67 /* from server to client */
hudakz 0:5350a66d5279 22
hudakz 8:4acb22344932 23 #define DHCP_CLIENT_PORT 68 /* from client to server */
hudakz 0:5350a66d5279 24
hudakz 0:5350a66d5279 25 /* DHCP message OP code */
hudakz 0:5350a66d5279 26
hudakz 8:4acb22344932 27 #define DHCP_BOOTREQUEST 1
hudakz 8:4acb22344932 28 #define DHCP_BOOTREPLY 2
hudakz 0:5350a66d5279 29
hudakz 0:5350a66d5279 30 /* DHCP message type */
hudakz 0:5350a66d5279 31
hudakz 8:4acb22344932 32 #define DHCP_DISCOVER 1
hudakz 8:4acb22344932 33 #define DHCP_OFFER 2
hudakz 8:4acb22344932 34 #define DHCP_REQUEST 3
hudakz 8:4acb22344932 35 #define DHCP_DECLINE 4
hudakz 8:4acb22344932 36 #define DHCP_ACK 5
hudakz 8:4acb22344932 37 #define DHCP_NAK 6
hudakz 8:4acb22344932 38 #define DHCP_RELEASE 7
hudakz 8:4acb22344932 39 #define DHCP_INFORM 8
hudakz 0:5350a66d5279 40
hudakz 8:4acb22344932 41 #define DHCP_HTYPE10MB 1
hudakz 8:4acb22344932 42 #define DHCP_HTYPE100MB 2
hudakz 0:5350a66d5279 43
hudakz 8:4acb22344932 44 #define DHCP_HLENETHERNET 6
hudakz 8:4acb22344932 45 #define DHCP_HOPS 0
hudakz 8:4acb22344932 46 #define DHCP_SECS 0
hudakz 0:5350a66d5279 47
hudakz 8:4acb22344932 48 #define MAGIC_COOKIE 0x63825363
hudakz 8:4acb22344932 49 #define MAX_DHCP_OPT 16
hudakz 0:5350a66d5279 50
hudakz 8:4acb22344932 51 #define HOST_NAME "ENC28J"
hudakz 8:4acb22344932 52 #define DEFAULT_LEASE (900) //default lease time in seconds
hudakz 0:5350a66d5279 53
hudakz 8:4acb22344932 54 #define DHCP_CHECK_NONE (0)
hudakz 8:4acb22344932 55 #define DHCP_CHECK_RENEW_FAIL (1)
hudakz 8:4acb22344932 56 #define DHCP_CHECK_RENEW_OK (2)
hudakz 8:4acb22344932 57 #define DHCP_CHECK_REBIND_FAIL (3)
hudakz 8:4acb22344932 58 #define DHCP_CHECK_REBIND_OK (4)
hudakz 0:5350a66d5279 59
hudakz 0:5350a66d5279 60 enum
hudakz 0:5350a66d5279 61 {
hudakz 0:5350a66d5279 62 padOption = 0,
hudakz 0:5350a66d5279 63 subnetMask = 1,
hudakz 0:5350a66d5279 64 timerOffset = 2,
hudakz 0:5350a66d5279 65 routersOnSubnet = 3,
hudakz 0:5350a66d5279 66
hudakz 0:5350a66d5279 67 /* timeServer = 4,
hudakz 0:5350a66d5279 68 nameServer = 5,*/
hudakz 0:5350a66d5279 69 dns = 6,
hudakz 0:5350a66d5279 70
hudakz 0:5350a66d5279 71 /*logServer = 7,
hudakz 0:5350a66d5279 72 cookieServer = 8,
hudakz 0:5350a66d5279 73 lprServer = 9,
hudakz 0:5350a66d5279 74 impressServer = 10,
hudakz 0:5350a66d5279 75 resourceLocationServer = 11,*/
hudakz 0:5350a66d5279 76 hostName = 12,
hudakz 0:5350a66d5279 77
hudakz 0:5350a66d5279 78 /*bootFileSize = 13,
hudakz 0:5350a66d5279 79 meritDumpFile = 14,*/
hudakz 0:5350a66d5279 80 domainName = 15,
hudakz 0:5350a66d5279 81
hudakz 0:5350a66d5279 82 /*swapServer = 16,
hudakz 0:5350a66d5279 83 rootPath = 17,
hudakz 0:5350a66d5279 84 extentionsPath = 18,
hudakz 0:5350a66d5279 85 IPforwarding = 19,
hudakz 0:5350a66d5279 86 nonLocalSourceRouting = 20,
hudakz 0:5350a66d5279 87 policyFilter = 21,
hudakz 0:5350a66d5279 88 maxDgramReasmSize = 22,
hudakz 0:5350a66d5279 89 defaultIPTTL = 23,
hudakz 0:5350a66d5279 90 pathMTUagingTimeout = 24,
hudakz 0:5350a66d5279 91 pathMTUplateauTable = 25,
hudakz 0:5350a66d5279 92 ifMTU = 26,
hudakz 0:5350a66d5279 93 allSubnetsLocal = 27,
hudakz 0:5350a66d5279 94 broadcastAddr = 28,
hudakz 0:5350a66d5279 95 performMaskDiscovery = 29,
hudakz 0:5350a66d5279 96 maskSupplier = 30,
hudakz 0:5350a66d5279 97 performRouterDiscovery = 31,
hudakz 0:5350a66d5279 98 routerSolicitationAddr = 32,
hudakz 0:5350a66d5279 99 staticRoute = 33,
hudakz 0:5350a66d5279 100 trailerEncapsulation = 34,
hudakz 0:5350a66d5279 101 arpCacheTimeout = 35,
hudakz 0:5350a66d5279 102 ethernetEncapsulation = 36,
hudakz 0:5350a66d5279 103 tcpDefaultTTL = 37,
hudakz 0:5350a66d5279 104 tcpKeepaliveInterval = 38,
hudakz 0:5350a66d5279 105 tcpKeepaliveGarbage = 39,
hudakz 0:5350a66d5279 106 nisDomainName = 40,
hudakz 0:5350a66d5279 107 nisServers = 41,
hudakz 0:5350a66d5279 108 ntpServers = 42,
hudakz 0:5350a66d5279 109 vendorSpecificInfo = 43,
hudakz 0:5350a66d5279 110 netBIOSnameServer = 44,
hudakz 0:5350a66d5279 111 netBIOSdgramDistServer = 45,
hudakz 0:5350a66d5279 112 netBIOSnodeType = 46,
hudakz 0:5350a66d5279 113 netBIOSscope = 47,
hudakz 0:5350a66d5279 114 xFontServer = 48,
hudakz 0:5350a66d5279 115 xDisplayManager = 49,*/
hudakz 0:5350a66d5279 116 dhcpRequestedIPaddr = 50,
hudakz 0:5350a66d5279 117 dhcpIPaddrLeaseTime = 51,
hudakz 0:5350a66d5279 118
hudakz 0:5350a66d5279 119 /*dhcpOptionOverload = 52,*/
hudakz 0:5350a66d5279 120 dhcpMessageType = 53,
hudakz 0:5350a66d5279 121 dhcpServerIdentifier= 54,
hudakz 0:5350a66d5279 122 dhcpParamRequest = 55,
hudakz 0:5350a66d5279 123
hudakz 0:5350a66d5279 124 /*dhcpMsg = 56,
hudakz 0:5350a66d5279 125 dhcpMaxMsgSize = 57,*/
hudakz 0:5350a66d5279 126 dhcpT1value = 58,
hudakz 0:5350a66d5279 127 dhcpT2value = 59,
hudakz 0:5350a66d5279 128
hudakz 0:5350a66d5279 129 /*dhcpClassIdentifier = 60,*/
hudakz 0:5350a66d5279 130 dhcpClientIdentifier= 61,
hudakz 0:5350a66d5279 131 endOption = 255
hudakz 0:5350a66d5279 132 };
hudakz 0:5350a66d5279 133
hudakz 0:5350a66d5279 134 typedef struct _RIP_MSG_FIXED
hudakz 0:5350a66d5279 135 {
hudakz 0:5350a66d5279 136 uint8_t op;
hudakz 0:5350a66d5279 137 uint8_t htype;
hudakz 0:5350a66d5279 138 uint8_t hlen;
hudakz 0:5350a66d5279 139 uint8_t hops;
hudakz 0:5350a66d5279 140 uint32_t xid;
hudakz 0:5350a66d5279 141 uint16_t secs;
hudakz 0:5350a66d5279 142 uint16_t flags;
hudakz 0:5350a66d5279 143 uint8_t ciaddr[4];
hudakz 0:5350a66d5279 144 uint8_t yiaddr[4];
hudakz 0:5350a66d5279 145 uint8_t siaddr[4];
hudakz 0:5350a66d5279 146 uint8_t giaddr[4];
hudakz 0:5350a66d5279 147 uint8_t chaddr[6];
hudakz 0:5350a66d5279 148 } RIP_MSG_FIXED;
hudakz 0:5350a66d5279 149
hudakz 0:5350a66d5279 150 class DhcpClass
hudakz 0:5350a66d5279 151 {
hudakz 0:5350a66d5279 152 private:
hudakz 0:5350a66d5279 153 uint32_t _dhcpInitialTransactionId;
hudakz 0:5350a66d5279 154 uint32_t _dhcpTransactionId;
hudakz 0:5350a66d5279 155 uint8_t _dhcpMacAddr[6];
hudakz 0:5350a66d5279 156 uint8_t _dhcpLocalIp[4];
hudakz 0:5350a66d5279 157 uint8_t _dhcpSubnetMask[4];
hudakz 0:5350a66d5279 158 uint8_t _dhcpGatewayIp[4];
hudakz 0:5350a66d5279 159 uint8_t _dhcpDhcpServerIp[4];
hudakz 0:5350a66d5279 160 uint8_t _dhcpDnsServerIp[4];
hudakz 0:5350a66d5279 161 uint32_t _dhcpLeaseTime;
hudakz 0:5350a66d5279 162 uint32_t _dhcpT1, _dhcpT2;
hudakz 0:5350a66d5279 163 signed long _renewInSec;
hudakz 0:5350a66d5279 164 signed long _rebindInSec;
hudakz 0:5350a66d5279 165 signed long _lastCheck;
hudakz 0:5350a66d5279 166 unsigned long _timeout;
hudakz 0:5350a66d5279 167 unsigned long _responseTimeout;
hudakz 0:5350a66d5279 168 unsigned long _secTimeout;
hudakz 0:5350a66d5279 169 uint8_t _dhcp_state;
hudakz 0:5350a66d5279 170 UIPUDP _dhcpUdpSocket;
hudakz 0:5350a66d5279 171
hudakz 0:5350a66d5279 172 int request_DHCP_lease(void);
hudakz 0:5350a66d5279 173 void reset_DHCP_lease(void);
hudakz 0:5350a66d5279 174 void presend_DHCP(void);
hudakz 0:5350a66d5279 175 void send_DHCP_MESSAGE(uint8_t, uint16_t);
hudakz 0:5350a66d5279 176 void printByte(char* , uint8_t);
hudakz 0:5350a66d5279 177
hudakz 0:5350a66d5279 178 uint8_t parseDHCPResponse(unsigned long responseTimeout, uint32_t& transactionId);
hudakz 0:5350a66d5279 179 public:
hudakz 0:5350a66d5279 180 IPAddress getLocalIp(void);
hudakz 0:5350a66d5279 181 IPAddress getSubnetMask(void);
hudakz 0:5350a66d5279 182 IPAddress getGatewayIp(void);
hudakz 0:5350a66d5279 183 IPAddress getDhcpServerIp(void);
hudakz 0:5350a66d5279 184 IPAddress getDnsServerIp(void);
hudakz 0:5350a66d5279 185
hudakz 0:5350a66d5279 186 int beginWithDHCP(uint8_t* , unsigned long timeout = 60000, unsigned long responseTimeout = 4000);
hudakz 0:5350a66d5279 187 int checkLease(void);
hudakz 0:5350a66d5279 188 };
hudakz 0:5350a66d5279 189 #endif