mbed OS5

Fork of UIPEthernet by Zoltan Hudak

Revision:
0:5350a66d5279
Child:
8:4acb22344932
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Dhcp.h	Mon Sep 15 11:12:30 2014 +0000
@@ -0,0 +1,189 @@
+// DHCP Library v0.3 - April 25, 2009
+// Author: Jordan Terrell - blog.jordanterrell.com
+#ifndef Dhcp_h
+    #define Dhcp_h
+
+    #include "UIPUdp.h"
+
+/* DHCP state machine. */
+
+    #define STATE_DHCP_START        0
+    #define STATE_DHCP_DISCOVER     1
+    #define STATE_DHCP_REQUEST      2
+    #define STATE_DHCP_LEASED       3
+    #define STATE_DHCP_REREQUEST    4
+    #define STATE_DHCP_RELEASE      5
+
+    #define DHCP_FLAGSBROADCAST     0x8000
+
+/* UDP port numbers for DHCP */
+
+    #define DHCP_SERVER_PORT    67          /* from server to client */
+
+    #define DHCP_CLIENT_PORT    68          /* from client to server */
+
+/* DHCP message OP code */
+
+    #define DHCP_BOOTREQUEST    1
+    #define DHCP_BOOTREPLY      2
+
+/* DHCP message type */
+
+    #define DHCP_DISCOVER           1
+    #define DHCP_OFFER              2
+    #define DHCP_REQUEST            3
+    #define DHCP_DECLINE            4
+    #define DHCP_ACK                5
+    #define DHCP_NAK                6
+    #define DHCP_RELEASE            7
+    #define DHCP_INFORM             8
+
+    #define DHCP_HTYPE10MB          1
+    #define DHCP_HTYPE100MB         2
+
+    #define DHCP_HLENETHERNET       6
+    #define DHCP_HOPS               0
+    #define DHCP_SECS               0
+
+    #define MAGIC_COOKIE            0x63825363
+    #define MAX_DHCP_OPT            16
+
+    #define HOST_NAME               "ENC28J"
+    #define DEFAULT_LEASE           (900)   //default lease time in seconds
+
+    #define DHCP_CHECK_NONE         (0)
+    #define DHCP_CHECK_RENEW_FAIL   (1)
+    #define DHCP_CHECK_RENEW_OK     (2)
+    #define DHCP_CHECK_REBIND_FAIL  (3)
+    #define DHCP_CHECK_REBIND_OK    (4)
+
+enum
+{
+    padOption           = 0,
+    subnetMask          = 1,
+    timerOffset         = 2,
+    routersOnSubnet     = 3,
+
+    /* timeServer       =   4,
+    nameServer      =   5,*/
+    dns                 = 6,
+
+    /*logServer     =   7,
+    cookieServer        =   8,
+    lprServer       =   9,
+    impressServer       =   10,
+    resourceLocationServer  =   11,*/
+    hostName            = 12,
+
+    /*bootFileSize      =   13,
+    meritDumpFile       =   14,*/
+    domainName          = 15,
+
+    /*swapServer        =   16,
+    rootPath        =   17,
+    extentionsPath      =   18,
+    IPforwarding        =   19,
+    nonLocalSourceRouting   =   20,
+    policyFilter        =   21,
+    maxDgramReasmSize   =   22,
+    defaultIPTTL        =   23,
+    pathMTUagingTimeout =   24,
+    pathMTUplateauTable =   25,
+    ifMTU           =   26,
+    allSubnetsLocal     =   27,
+    broadcastAddr       =   28,
+    performMaskDiscovery    =   29,
+    maskSupplier        =   30,
+    performRouterDiscovery  =   31,
+    routerSolicitationAddr  =   32,
+    staticRoute     =   33,
+    trailerEncapsulation    =   34,
+    arpCacheTimeout     =   35,
+    ethernetEncapsulation   =   36,
+    tcpDefaultTTL       =   37,
+    tcpKeepaliveInterval    =   38,
+    tcpKeepaliveGarbage =   39,
+    nisDomainName       =   40,
+    nisServers      =   41,
+    ntpServers      =   42,
+    vendorSpecificInfo  =   43,
+    netBIOSnameServer   =   44,
+    netBIOSdgramDistServer  =   45,
+    netBIOSnodeType     =   46,
+    netBIOSscope        =   47,
+    xFontServer     =   48,
+    xDisplayManager     =   49,*/
+    dhcpRequestedIPaddr = 50,
+    dhcpIPaddrLeaseTime = 51,
+
+    /*dhcpOptionOverload    =   52,*/
+    dhcpMessageType     = 53,
+    dhcpServerIdentifier= 54,
+    dhcpParamRequest    = 55,
+
+    /*dhcpMsg           =   56,
+    dhcpMaxMsgSize      =   57,*/
+    dhcpT1value         = 58,
+    dhcpT2value         = 59,
+
+    /*dhcpClassIdentifier   =   60,*/
+    dhcpClientIdentifier= 61,
+    endOption           = 255
+};
+
+typedef struct _RIP_MSG_FIXED
+{
+    uint8_t     op;
+    uint8_t     htype;
+    uint8_t     hlen;
+    uint8_t     hops;
+    uint32_t    xid;
+    uint16_t    secs;
+    uint16_t    flags;
+    uint8_t     ciaddr[4];
+    uint8_t     yiaddr[4];
+    uint8_t     siaddr[4];
+    uint8_t     giaddr[4];
+    uint8_t     chaddr[6];
+} RIP_MSG_FIXED;
+
+class   DhcpClass
+{
+private:
+    uint32_t        _dhcpInitialTransactionId;
+    uint32_t        _dhcpTransactionId;
+    uint8_t         _dhcpMacAddr[6];
+    uint8_t         _dhcpLocalIp[4];
+    uint8_t         _dhcpSubnetMask[4];
+    uint8_t         _dhcpGatewayIp[4];
+    uint8_t         _dhcpDhcpServerIp[4];
+    uint8_t         _dhcpDnsServerIp[4];
+    uint32_t        _dhcpLeaseTime;
+    uint32_t        _dhcpT1, _dhcpT2;
+    signed long     _renewInSec;
+    signed long     _rebindInSec;
+    signed long     _lastCheck;
+    unsigned long   _timeout;
+    unsigned long   _responseTimeout;
+    unsigned long   _secTimeout;
+    uint8_t         _dhcp_state;
+    UIPUDP          _dhcpUdpSocket;
+
+    int             request_DHCP_lease(void);
+    void            reset_DHCP_lease(void);
+    void            presend_DHCP(void);
+    void            send_DHCP_MESSAGE(uint8_t, uint16_t);
+    void            printByte(char* , uint8_t);
+
+    uint8_t         parseDHCPResponse(unsigned long responseTimeout, uint32_t& transactionId);
+public:
+    IPAddress   getLocalIp(void);
+    IPAddress   getSubnetMask(void);
+    IPAddress   getGatewayIp(void);
+    IPAddress   getDhcpServerIp(void);
+    IPAddress   getDnsServerIp(void);
+
+    int         beginWithDHCP(uint8_t* , unsigned long timeout = 60000, unsigned long responseTimeout = 4000);
+    int         checkLease(void);
+};
+#endif