busybox/networking/udhcp/options.h

41 lines
930 B
C
Raw Normal View History

2002-10-15 03:11:28 +05:30
/* 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;
2004-01-31 05:15:53 +05:30
uint8_t code;
2002-10-15 03:11:28 +05:30
};
extern struct dhcp_option dhcp_options[];
2002-10-15 03:11:28 +05:30
extern int option_lengths[];
2004-01-31 05:15:53 +05:30
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);
2002-10-15 03:11:28 +05:30
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