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/*
Copyright (c) 2012-2013, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _FASTD_PEER_H_
#define _FASTD_PEER_H_
#include "fastd.h"
struct fastd_peer {
fastd_peer_t *next;
const fastd_peer_config_t *config;
fastd_peer_group_t *group;
fastd_socket_t *sock;
fastd_peer_address_t address;
bool established;
struct timespec last_resolve;
struct timespec last_resolve_return;
struct timespec seen;
struct timespec last_handshake;
fastd_peer_address_t last_handshake_address;
struct timespec last_handshake_response;
fastd_peer_address_t last_handshake_response_address;
fastd_protocol_peer_config_t *protocol_config;
fastd_protocol_peer_state_t *protocol_state;
};
struct fastd_peer_config {
fastd_peer_config_t *next;
const char *config_source_dir;
bool enabled;
char *name;
char *hostname;
fastd_peer_address_t address;
bool dynamic_float;
char *key;
const fastd_peer_group_config_t *group;
fastd_protocol_peer_config_t *protocol_config;
};
struct fastd_peer_eth_addr {
fastd_eth_addr_t addr;
fastd_peer_t *peer;
struct timespec seen;
};
bool fastd_peer_address_equal(const fastd_peer_address_t *addr1, const fastd_peer_address_t *addr2);
void fastd_peer_address_simplify(fastd_peer_address_t *addr);
fastd_peer_config_t* fastd_peer_config_new(fastd_context_t *ctx, fastd_config_t *conf);
void fastd_peer_config_free(fastd_peer_config_t *peer);
void fastd_peer_config_delete(fastd_context_t *ctx, fastd_config_t *conf);
void fastd_peer_config_purge(fastd_context_t *ctx, fastd_peer_config_t *conf);
bool fastd_peer_config_equal(const fastd_peer_config_t *peer1, const fastd_peer_config_t *peer2);
void fastd_peer_reset(fastd_context_t *ctx, fastd_peer_t *peer);
void fastd_peer_delete(fastd_context_t *ctx, fastd_peer_t *peer);
fastd_peer_t* fastd_peer_add(fastd_context_t *ctx, fastd_peer_config_t *conf);
fastd_peer_t* fastd_peer_add_temporary(fastd_context_t *ctx);
bool fastd_peer_verify_temporary(fastd_context_t *ctx, fastd_peer_t *peer, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *peer_addr);
void fastd_peer_enable_temporary(fastd_context_t *ctx, fastd_peer_t *peer);
void fastd_peer_set_established(fastd_context_t *ctx, fastd_peer_t *peer);
bool fastd_peer_may_connect(fastd_context_t *ctx, fastd_peer_t *peer);
bool fastd_peer_claim_address(fastd_context_t *ctx, fastd_peer_t *peer, fastd_socket_t *sock, const fastd_peer_address_t *addr);
void fastd_peer_reset_socket(fastd_context_t *ctx, fastd_peer_t *peer);
const fastd_eth_addr_t* fastd_get_source_address(const fastd_context_t *ctx, fastd_buffer_t buffer);
const fastd_eth_addr_t* fastd_get_dest_address(const fastd_context_t *ctx, fastd_buffer_t buffer);
static inline bool fastd_peer_allow_unknown(fastd_context_t *ctx) {
return ctx->conf->on_verify;
}
static inline bool fastd_peer_config_is_floating(const fastd_peer_config_t *config) {
return ((config->hostname == NULL && config->address.sa.sa_family == AF_UNSPEC) || config->dynamic_float);
}
static inline bool fastd_peer_config_is_dynamic(const fastd_peer_config_t *config) {
return (config->hostname != NULL);
}
bool fastd_peer_config_matches_dynamic(const fastd_peer_config_t *config, const fastd_peer_address_t *addr);
static inline bool fastd_peer_is_floating(const fastd_peer_t *peer) {
return peer->config ? fastd_peer_config_is_floating(peer->config) : true;
}
static inline bool fastd_peer_is_dynamic(const fastd_peer_t *peer) {
return peer->config ? fastd_peer_config_is_dynamic(peer->config) : false;
}
static inline bool fastd_peer_is_temporary(const fastd_peer_t *peer) {
return (!peer->config);
}
static inline bool fastd_peer_is_established(const fastd_peer_t *peer) {
return peer->established;
}
static inline void fastd_peer_seen(fastd_context_t *ctx, fastd_peer_t *peer) {
peer->seen = ctx->now;
}
static inline bool fastd_peer_is_socket_dynamic(const fastd_peer_t *peer) {
return (!peer->sock || !peer->sock->addr);
}
static inline bool fastd_eth_addr_is_unicast(const fastd_eth_addr_t *addr) {
return ((addr->data[0] & 1) == 0);
}
void fastd_peer_eth_addr_add(fastd_context_t *ctx, fastd_peer_t *peer, const fastd_eth_addr_t *addr);
void fastd_peer_eth_addr_cleanup(fastd_context_t *ctx);
fastd_peer_t* fastd_peer_find_by_eth_addr(fastd_context_t *ctx, const fastd_eth_addr_t *addr);
#endif /* _FASTD_PEER_H_ */
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