Viktor Bohuněk / WIZnet_Library

This is WIZnet Ethernet Interface using Hardware TCP/IP chip, W5500, W5200 and W5100. One of them can be selected by enabling it in wiznet.h.

Dependents:   EZS

Fork of WIZnet_Library by WIZnet

WIZnetInterface/DHCPClient/DHCPClient.h@9:45167b342fec, 2018-08-08 (annotated)

Committer:
Vektor
Date:
Wed Aug 08 09:45:44 2018 +0000
Revision:
9:45167b342fec
Parent:
0:b72d22e10709 
Change default chip to 5100

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jbkim 0:b72d22e10709 1 // DHCPClient.h 2013/4/10
jbkim 0:b72d22e10709 2 #ifndef DHCPCLIENT_H
jbkim 0:b72d22e10709 3 #define DHCPCLIENT_H
jbkim 0:b72d22e10709 4 #include "wiznet.h"
jbkim 0:b72d22e10709 5 #include "UDPSocket.h"
jbkim 0:b72d22e10709 6
jbkim 0:b72d22e10709 7 #define DHCP_OFFSET_OP 0
jbkim 0:b72d22e10709 8 #define DHCP_OFFSET_XID 4
jbkim 0:b72d22e10709 9 #define DHCP_OFFSET_YIADDR 16
jbkim 0:b72d22e10709 10 #define DHCP_OFFSET_SIADDR 20
jbkim 0:b72d22e10709 11 #define DHCP_OFFSET_OPTIONS 240
jbkim 0:b72d22e10709 12 #define DHCP_MAX_PACKET_SIZE 600
jbkim 0:b72d22e10709 13
jbkim 0:b72d22e10709 14 // DHCP Message Type
jbkim 0:b72d22e10709 15 #define DHCPDISCOVER 1
jbkim 0:b72d22e10709 16 #define DHCPOFFER 2
jbkim 0:b72d22e10709 17 #define DHCPREQUEST 3
jbkim 0:b72d22e10709 18 #define DHCPDECLINE 4
jbkim 0:b72d22e10709 19 #define DHCPACK 5
jbkim 0:b72d22e10709 20 #define DHCPNAK 6
jbkim 0:b72d22e10709 21 #define DHCPRELEASE 7
jbkim 0:b72d22e10709 22 #define DHCPINFORM 8
jbkim 0:b72d22e10709 23
jbkim 0:b72d22e10709 24 class DHCPClient {
jbkim 0:b72d22e10709 25 public:
jbkim 0:b72d22e10709 26 DHCPClient();
jbkim 0:b72d22e10709 27 int setup(int timeout_ms = 15*1000);
jbkim 0:b72d22e10709 28 uint8_t chaddr[6]; // MAC
jbkim 0:b72d22e10709 29 uint8_t yiaddr[4]; // IP
jbkim 0:b72d22e10709 30 uint8_t dnsaddr[4]; // DNS
jbkim 0:b72d22e10709 31 uint8_t gateway[4];
jbkim 0:b72d22e10709 32 uint8_t netmask[4];
jbkim 0:b72d22e10709 33 uint8_t siaddr[4];
jbkim 0:b72d22e10709 34 private:
jbkim 0:b72d22e10709 35 int discover();
jbkim 0:b72d22e10709 36 int request();
jbkim 0:b72d22e10709 37 int offer(uint8_t buf[], int size);
jbkim 0:b72d22e10709 38 void add_buf(uint8_t* buf, int len);
jbkim 0:b72d22e10709 39 void fill_buf(int len, uint8_t data = 0x00);
jbkim 0:b72d22e10709 40 void add_buf(uint8_t c);
jbkim 0:b72d22e10709 41 void add_option(uint8_t code, uint8_t* buf = NULL, int len = 0);
jbkim 0:b72d22e10709 42 bool verify(uint8_t buf[], int len);
jbkim 0:b72d22e10709 43 void callback();
jbkim 0:b72d22e10709 44 UDPSocket* m_udp;
jbkim 0:b72d22e10709 45 Endpoint m_server;
jbkim 0:b72d22e10709 46 uint8_t xid[4];
jbkim 0:b72d22e10709 47 bool exit_flag;
jbkim 0:b72d22e10709 48 Timer m_interval;
jbkim 0:b72d22e10709 49 int m_retry;
jbkim 0:b72d22e10709 50 uint8_t m_buf[DHCP_MAX_PACKET_SIZE];
jbkim 0:b72d22e10709 51 int m_pos;
jbkim 0:b72d22e10709 52 WIZnet_Chip* eth;
jbkim 0:b72d22e10709 53 };
jbkim 0:b72d22e10709 54 #endif //DHCPCLIENT_H
jbkim 0:b72d22e10709 55