44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
/* options.h */
|
|
#ifndef _OPTIONS_H
|
|
#define _OPTIONS_H
|
|
|
|
#include "packet.h"
|
|
|
|
#include "config.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 */
|
|
#define OPTION_PREFIX 0x40 /* ip wants a prefix instead of a ip for subnet */
|
|
|
|
struct dhcp_option {
|
|
char name[10];
|
|
char flags;
|
|
unsigned char code;
|
|
};
|
|
|
|
extern struct dhcp_option options[];
|
|
extern int option_lengths[];
|
|
|
|
unsigned char *get_option(struct dhcpMessage *packet, int code);
|
|
int end_option(unsigned char *optionptr);
|
|
int add_option_string(unsigned char *optionptr, unsigned char *string);
|
|
int add_simple_option(unsigned char *optionptr, unsigned char code, u_int32_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
|