Diff: DHCPClient/DHCPClient.h

Revision:

0:e11e8793c3ce

diff -r 000000000000 -r e11e8793c3ce DHCPClient/DHCPClient.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DHCPClient/DHCPClient.h	Wed Aug 20 00:28:37 2014 +0000
@@ -0,0 +1,54 @@
+// DHCPClient.h 2013/4/10
+#ifndef DHCPCLIENT_H
+#define DHCPCLIENT_H
+#include "wiznet.h"
+#include "UDPSocket.h"
+
+#define DHCP_OFFSET_OP 0
+#define DHCP_OFFSET_XID 4
+#define DHCP_OFFSET_YIADDR 16
+#define DHCP_OFFSET_SIADDR 20
+#define DHCP_OFFSET_OPTIONS 240
+#define DHCP_MAX_PACKET_SIZE 600
+
+// DHCP Message Type
+#define DHCPDISCOVER 1
+#define DHCPOFFER    2
+#define DHCPREQUEST  3
+#define DHCPDECLINE  4
+#define DHCPACK      5
+#define DHCPNAK      6
+#define DHCPRELEASE  7
+#define DHCPINFORM   8
+
+class DHCPClient {
+public:
+    DHCPClient();
+    int setup(int timeout_ms = 15*1000);
+    uint8_t chaddr[6]; // MAC
+    uint8_t yiaddr[4]; // IP
+    uint8_t dnsaddr[4]; // DNS
+    uint8_t gateway[4];
+    uint8_t netmask[4];
+    uint8_t siaddr[4];
+private:
+    int discover();
+    int request();
+    int offer(uint8_t buf[], int size);
+    void add_buf(uint8_t* buf, int len);
+    void fill_buf(int len, uint8_t data = 0x00);
+    void add_buf(uint8_t c);
+    void add_option(uint8_t code, uint8_t* buf = NULL, int len = 0);
+    bool verify(uint8_t buf[], int len);
+    void callback();
+    UDPSocket* m_udp;
+    Endpoint m_server;
+    uint8_t xid[4];
+    bool exit_flag;
+    Timer m_interval;
+    int m_retry;
+    uint8_t m_buf[DHCP_MAX_PACKET_SIZE];
+    int m_pos;
+    WIZnet_Chip* eth;
+};
+#endif //DHCPCLIENT_H