Sergei G / NetworkServices

NetworkServices with NUCLEO-L476RG and W5500 by SeeedStudio stack.

Dependents:   coap-example Borsch coap-example

Fork of NetworkServices by AMETEK Powervar

DHCPClient/DHCPClient.h@17:c976088bf39d, 2017-07-05 (annotated)

Committer:
sgnezdov
Date:
Wed Jul 05 18:34:39 2017 +0000
Revision:
17:c976088bf39d
Parent:
16:82e7a0bf58d8 
Changed setup interface to take MAC address, because W5500 may use software defined MAC when obtaining IP.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dgriffin65 15:14382459c8b7 1 // DHCPClient.h 2013/4/10
dgriffin65 15:14382459c8b7 2 #ifndef DHCPCLIENT_H
dgriffin65 15:14382459c8b7 3 #define DHCPCLIENT_H
dgriffin65 15:14382459c8b7 4 #include "wiznet.h"
dgriffin65 15:14382459c8b7 5 #include "UDPSocket.h"
dgriffin65 15:14382459c8b7 6
dgriffin65 15:14382459c8b7 7 #define DHCP_OFFSET_OP 0
dgriffin65 15:14382459c8b7 8 #define DHCP_OFFSET_XID 4
dgriffin65 15:14382459c8b7 9 #define DHCP_OFFSET_YIADDR 16
dgriffin65 15:14382459c8b7 10 #define DHCP_OFFSET_SIADDR 20
dgriffin65 15:14382459c8b7 11 #define DHCP_OFFSET_OPTIONS 240
dgriffin65 15:14382459c8b7 12 #define DHCP_MAX_PACKET_SIZE 600
dgriffin65 15:14382459c8b7 13
dgriffin65 15:14382459c8b7 14 // DHCP Message Type
dgriffin65 15:14382459c8b7 15 #define DHCPDISCOVER 1
dgriffin65 15:14382459c8b7 16 #define DHCPOFFER 2
dgriffin65 15:14382459c8b7 17 #define DHCPREQUEST 3
dgriffin65 15:14382459c8b7 18 #define DHCPDECLINE 4
dgriffin65 15:14382459c8b7 19 #define DHCPACK 5
dgriffin65 15:14382459c8b7 20 #define DHCPNAK 6
dgriffin65 15:14382459c8b7 21 #define DHCPRELEASE 7
dgriffin65 15:14382459c8b7 22 #define DHCPINFORM 8
dgriffin65 15:14382459c8b7 23
dgriffin65 15:14382459c8b7 24 class DHCPClient {
dgriffin65 15:14382459c8b7 25 public:
dgriffin65 15:14382459c8b7 26 DHCPClient();
sgnezdov 16:82e7a0bf58d8 27 int setup(NetworkStack *ns, uint8_t mac_addr[6], int timeout_ms = 15*1000);
dgriffin65 15:14382459c8b7 28 uint8_t chaddr[6]; // MAC
dgriffin65 15:14382459c8b7 29 uint8_t yiaddr[4]; // IP
dgriffin65 15:14382459c8b7 30 uint8_t dnsaddr[4]; // DNS
dgriffin65 15:14382459c8b7 31 uint8_t gateway[4];
dgriffin65 15:14382459c8b7 32 uint8_t netmask[4];
dgriffin65 15:14382459c8b7 33 uint8_t siaddr[4];
dgriffin65 15:14382459c8b7 34 private:
dgriffin65 15:14382459c8b7 35 int discover();
dgriffin65 15:14382459c8b7 36 int request();
dgriffin65 15:14382459c8b7 37 int offer(uint8_t buf[], int size);
dgriffin65 15:14382459c8b7 38 void add_buf(uint8_t* buf, int len);
dgriffin65 15:14382459c8b7 39 void fill_buf(int len, uint8_t data = 0x00);
dgriffin65 15:14382459c8b7 40 void add_buf(uint8_t c);
dgriffin65 15:14382459c8b7 41 void add_option(uint8_t code, uint8_t* buf = NULL, int len = 0);
dgriffin65 15:14382459c8b7 42 bool verify(uint8_t buf[], int len);
dgriffin65 15:14382459c8b7 43 void callback();
dgriffin65 15:14382459c8b7 44 UDPSocket* m_udp;
dgriffin65 15:14382459c8b7 45 SocketAddress m_server;
dgriffin65 15:14382459c8b7 46 uint8_t xid[4];
dgriffin65 15:14382459c8b7 47 bool exit_flag;
dgriffin65 15:14382459c8b7 48 Timer m_interval;
dgriffin65 15:14382459c8b7 49 int m_retry;
dgriffin65 15:14382459c8b7 50 uint8_t m_buf[DHCP_MAX_PACKET_SIZE];
dgriffin65 15:14382459c8b7 51 int m_pos;
dgriffin65 15:14382459c8b7 52 //WIZnet_Chip* eth;
dgriffin65 15:14382459c8b7 53 };
dgriffin65 15:14382459c8b7 54 #endif //DHCPCLIENT_H