fw/dhcp.h (902aa40) - mips_sys · BlinkenArea

dhcp.h

/* MIPS I system
 * Copyright 2011-2012 Stefan Schuermans <stefan@blinkenarea.org>
 * Copyleft GNU public license V2 or later
 *          http://www.gnu.org/copyleft/gpl.html
 */

#ifndef DHCP_H
#define DHCP_H

#include "ethernet.h"
#include "ip.h"
#include "udp.h"

/// header of DHCP packet
struct dhcp_header
{
  unsigned char op;
  unsigned char h_type;
  unsigned char h_len;
  unsigned char h_ops;
  unsigned long x_id;
  unsigned short secs;
  unsigned short flags;
  unsigned char ci_addr[4];
  unsigned char yi_addr[4];
  unsigned char si_addr[4];
  unsigned char gi_addr[4];
  unsigned char ch_addr[16];
  unsigned char s_name[64];
  unsigned char file[128];
  unsigned long m_cookie;
} __attribute__((packed));

/// DHCP packet
struct dhcp_packet
{
  struct ethernet_header eth_hdr;
  struct ip_header ip_hdr;
  struct udp_header udp_hdr;
  struct dhcp_header dhcp_hdr;
} __attribute__((packed));

/// tick procedure - call every 200ms
void dhcp_tick200(void);

/**
 * @brief process a received DHCP packet
 * @param[in] ptr pointer to data of packet
 * @param[in] sz size of packet
 */
void dhcp_recv(void *ptr, unsigned int sz);

#endif // #ifdef DHCP_H

mips_sys

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