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Sourcecode: udhcp version File versions

options.h

/* options.h */
#ifndef _OPTIONS_H
#define _OPTIONS_H

#include "packet.h"

#define TYPE_MASK 0x0F

enum {
      OPTION_IP=1,
      OPTION_IP_PAIR,
      OPTION_STRING,
      OPTION_BOOLEAN,
      OPTION_U8,
      OPTION_U16,
      OPTION_S16,
      OPTION_U32,
      OPTION_S32
};

#define OPTION_REQ      0x10 /* have the client request this option */
#define OPTION_LIST     0x20 /* There can be a list of 1 or more of these */

struct dhcp_option {
      char name[10];
      char flags;
      uint8_t code;
};

extern struct dhcp_option dhcp_options[];
extern int option_lengths[];

uint8_t *get_option(struct dhcpMessage *packet, int code);
int end_option(uint8_t *optionptr);
int add_option_string(uint8_t *optionptr, uint8_t *string);
int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data);
struct option_set *find_option(struct option_set *opt_list, char code);
void attach_option(struct option_set **opt_list, struct dhcp_option *option, char *buffer, int length);

#endif

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