104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
#include "ipfs/routing/routing.h"
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#include "libp2p/routing/kademlia.h"
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/**
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* Routing using Kademlia and DHT
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*
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* The go version has "supernode" which is similar to this:
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*/
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/**
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* Put a value in the datastore
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* @param routing the struct that contains connection information
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* @param key the key
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* @param key_size the size of the key
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* @param value the value
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* @param value_size the size of the value
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* @returns 0 on success, otherwise -1
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*/
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int ipfs_routing_kademlia_put_value(struct s_ipfs_routing* routing, char* key, size_t key_size, void* value, size_t value_size) {
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return 0;
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}
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/**
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* Get a value from the datastore
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* @param 1 the struct that contains the connection information
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* @param 2 the key to look for
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* @param 3 the size of the key
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* @param 4 a place to store the value
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* @param 5 the size of the value
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*/
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int ipfs_routing_kademlia_get_value(struct s_ipfs_routing* routing, char* key, size_t key_size, void** value, size_t* value_size) {
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return 0;
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}
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/**
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* Find a provider
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* @param routing the context
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* @param key the key to what we're looking for
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* @param key_size the size of the key
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* @param results the results
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* @param results_size the size of the results buffer
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* @returns true(1) on success, otherwise false(0)
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*/
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int ipfs_routing_kademlia_find_providers(struct s_ipfs_routing* routing, char* key, size_t key_size, void* results, size_t* results_size) {
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// see if I can provide it
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// add my multiaddress if I can
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// get a list of providers that are closer
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return 0;
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}
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/**
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* Find a peer
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*/
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int ipfs_routing_kademlia_find_peer(struct s_ipfs_routing* routing, char* param1, size_t param2, void* param3, size_t* param4) {
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return 0;
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}
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int ipfs_routing_kademlia_provide(struct s_ipfs_routing* routing, char* param1, size_t param2) {
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return 0;
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}
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// declared here so as to have the code in 1 place
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int ipfs_routing_online_ping(struct s_ipfs_routing*, struct Libp2pMessage*);
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/**
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* Ping this instance
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*/
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int ipfs_routing_kademlia_ping(struct s_ipfs_routing* routing, struct Libp2pMessage* message) {
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return ipfs_routing_online_ping(routing, message);
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}
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int ipfs_routing_kademlia_bootstrap(struct s_ipfs_routing* routing) {
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return 0;
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}
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struct s_ipfs_routing* ipfs_routing_new_kademlia(struct IpfsNode* local_node, struct RsaPrivateKey* private_key, struct Stream* stream) {
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char* kademlia_id = NULL;
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// generate kademlia compatible id by getting last 20 chars of peer id
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if (local_node->identity->peer_id == NULL || strlen(local_node->identity->peer_id) < 20) {
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return NULL;
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}
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kademlia_id = &local_node->identity->peer_id[strlen(local_node->identity->peer_id)-20];
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struct s_ipfs_routing* routing = (struct s_ipfs_routing*)malloc(sizeof(struct s_ipfs_routing));
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if (routing != NULL) {
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routing->local_node = local_node;
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routing->sk = private_key;
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routing->stream = stream;
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routing->PutValue = ipfs_routing_kademlia_put_value;
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routing->GetValue = ipfs_routing_kademlia_get_value;
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routing->FindProviders = ipfs_routing_kademlia_find_providers;
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routing->FindPeer = ipfs_routing_kademlia_find_peer;
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routing->Provide = ipfs_routing_kademlia_provide;
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routing->Ping = ipfs_routing_kademlia_ping;
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routing->Bootstrap = ipfs_routing_kademlia_bootstrap;
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}
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// connect to nodes and listen for connections
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struct MultiAddress* address = multiaddress_new_from_string(local_node->repo->config->addresses->api);
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if (multiaddress_is_ip(address)) {
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int port = multiaddress_get_ip_port(address);
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int family = multiaddress_get_ip_family(address);
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start_kademlia(port, family, kademlia_id, 10);
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}
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local_node->routing = routing;
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return routing;
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}
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