networking/udhcp/options.h

/* vi: set sw=4 ts=4: */
/* options.h */
#ifndef _OPTIONS_H
#define _OPTIONS_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[12];
	char flags;
	uint8_t code;
};

extern const struct dhcp_option dhcp_options[];
extern const unsigned char 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);

#endif
1	niro	532	/* vi: set sw=4 ts=4: */
2			/* options.h */
3			#ifndef _OPTIONS_H
4			#define _OPTIONS_H
5
6			#define TYPE_MASK 0x0F
7
8			enum {
9			OPTION_IP=1,
10			OPTION_IP_PAIR,
11			OPTION_STRING,
12			OPTION_BOOLEAN,
13			OPTION_U8,
14			OPTION_U16,
15			OPTION_S16,
16			OPTION_U32,
17			OPTION_S32
18			};
19
20			#define OPTION_REQ 0x10 /* have the client request this option */
21			#define OPTION_LIST 0x20 /* There can be a list of 1 or more of these */
22
23			struct dhcp_option {
24			char name[12];
25			char flags;
26			uint8_t code;
27			};
28
29			extern const struct dhcp_option dhcp_options[];
30			extern const unsigned char option_lengths[];
31
32			uint8_t get_option(struct dhcpMessage packet, int code);
33			int end_option(uint8_t *optionptr);
34			int add_option_string(uint8_t optionptr, uint8_t string);
35			int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data);
36
37			#endif