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/* 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,
#if ENABLE_FEATURE_RFC3397
OPTION_STR1035, /* RFC1035 compressed domain name list */
#endif
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);
#if ENABLE_FEATURE_RFC3397
char *dname_dec(const uint8_t *cstr, int clen, const char *pre);
uint8_t *dname_enc(const uint8_t *cstr, int clen, const char *src, int *retlen);
#endif
#endif
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