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/* nhrp_address.h - NHRP address structures and helpers
*
* Copyright (c) 2007-2012 Timo Teräs <timo.teras@iki.fi>
*
* This software is licensed under the MIT License.
* See MIT-LICENSE.txt for additional details.
*/
#ifndef NHRP_ADDRESS_H
#define NHRP_ADDRESS_H
#include <stdint.h>
#include <sys/socket.h>
#include "list.h"
#define NHRP_MAX_ADDRESS_LEN 6
struct nhrp_cie_list_head;
struct nhrp_address;
struct nhrp_address_query;
typedef void (*nhrp_address_query_callback)(struct nhrp_address_query *query,
int num_addr,
struct nhrp_address *addrs);
struct nhrp_address {
uint16_t type;
uint8_t addr_len;
uint8_t subaddr_len;
uint8_t addr[NHRP_MAX_ADDRESS_LEN];
};
struct nhrp_address_query {
nhrp_address_query_callback callback;
};
uint16_t nhrp_protocol_from_pf(uint16_t pf);
uint16_t nhrp_pf_from_protocol(uint16_t protocol);
uint16_t nhrp_afnum_from_pf(uint16_t pf);
uint16_t nhrp_pf_from_afnum(uint16_t afnum);
int nhrp_address_init(void);
void nhrp_address_cleanup(void);
int nhrp_address_parse_packet(uint16_t protocol, size_t len, uint8_t *packet,
struct nhrp_address *src,
struct nhrp_address *dst);
int nhrp_address_parse(const char *string, struct nhrp_address *addr,
uint8_t *prefix_len);
void nhrp_address_resolve(struct nhrp_address_query *query,
const char *hostname,
nhrp_address_query_callback callback);
void nhrp_address_resolve_cancel(struct nhrp_address_query *query);
void nhrp_address_set_type(struct nhrp_address *addr, uint16_t type);
int nhrp_address_set(struct nhrp_address *addr, uint16_t type,
uint8_t len, uint8_t *bytes);
int nhrp_address_set_full(struct nhrp_address *addr, uint16_t type,
uint8_t len, uint8_t *bytes,
uint8_t sublen, uint8_t *subbytes);
int nhrp_address_cmp(const struct nhrp_address *a, const struct nhrp_address *b);
int nhrp_address_prefix_cmp(const struct nhrp_address *a, const struct nhrp_address *b,
int prefix);
unsigned int nhrp_address_hash(const struct nhrp_address *addr);
void nhrp_address_set_network(struct nhrp_address *addr, int prefix);
void nhrp_address_set_broadcast(struct nhrp_address *addr, int prefix);
int nhrp_address_is_network(const struct nhrp_address *addr, int prefix);
int nhrp_address_is_broadcast(const struct nhrp_address *addr, int prefix);
int nhrp_address_is_multicast(const struct nhrp_address *addr);
int nhrp_address_is_any_addr(const struct nhrp_address *addr);
const char *nhrp_address_format(const struct nhrp_address *addr,
size_t buflen, char *buffer);
int nhrp_address_match_cie_list(struct nhrp_address *nbma_address,
struct nhrp_address *protocol_address,
struct list_head *cie_list);
#endif
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