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more ping cleanup and friendly interface to streams

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This commit is contained in:
John Jones 2017-02-23 15:15:33 -05:00
parent ae48e058dd
commit 7a6b138444
7 changed files with 198 additions and 83 deletions
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40
core/null.c
View file

@ -8,27 +8,50 @@
#include "libp2p/record/message.h"
#include "libp2p/net/multistream.h"
#include "ipfs/core/daemon.h"
#include "ipfs/routing/routing.h"
#include "ipfs/core/ipfs_node.h"
#define BUF_SIZE 4096
/**
* We've received a connection. Find out what they want
*/
void *ipfs_null_connection (void *ptr)
{
struct null_connection_params *connection_param;
//char b[BUF_SIZE];
//int len;
struct null_connection_params *connection_param = NULL;
struct s_ipfs_routing* routing = NULL;
struct Stream* stream = NULL;
connection_param = (struct null_connection_params*) ptr;
// TODO: multistream + secio + message.
// TODO: when should we exit the for loop and disconnect?
stream = libp2p_net_multistream_stream_new(connection_param->socket);
fprintf(stderr, "Connection %d, count %d\n", connection_param->socket, *(connection_param->count));
if (libp2p_net_multistream_negotiate(stream)) {
routing = ipfs_routing_new_online(connection_param->local_node->repo, &connection_param->local_node->identity->private_key, stream);
for(;;) {
if (libp2p_net_multistream_negotiate(connection_param->socket)) {
// we negotiated, now find out what they want
libp2p_net_multistream_handle_message(connection_param->socket);
struct Libp2pMessage* msg = libp2p_net_multistream_get_message(stream);
if (msg != NULL) {
switch(msg->message_type) {
case (MESSAGE_TYPE_PING):
routing->Ping(routing, msg);
break;
case (MESSAGE_TYPE_GET_VALUE):
routing->GetValue(routing, msg->key, msg->key_size, NULL, NULL);
break;
default:
break;
}
} else {
break;
}
}
}
/*
len = socket_read(connection_param->socket, b, sizeof(b)-1, 0);
if (len > 0) {
@ -42,9 +65,10 @@ void *ipfs_null_connection (void *ptr)
break;
}
*/
}
close (connection_param->socket); // close socket.
if (stream != NULL) {
stream->close(stream);
}
(*(connection_param->count))--; // update counter.
free (connection_param);
return (void*) 1;

10
core/ping.c
View file

@ -12,7 +12,7 @@
int ipfs_ping (int argc, char **argv)
{
char* results = NULL;
unsigned char* results = NULL;
size_t results_size = 0;
//TODO: handle multiaddress
@ -20,8 +20,8 @@ int ipfs_ping (int argc, char **argv)
//TODO: Error checking
char* ip = argv[2];
int port = atoi(argv[3]);
int socket_fd = libp2p_net_multistream_connect(ip, port);
if (socket_fd < 0) {
struct Stream* stream = libp2p_net_multistream_connect(ip, port);
if (stream == NULL) {
fprintf(stderr, "Unable to connect to %s on port %s", ip, argv[3]);
}
@ -32,8 +32,8 @@ int ipfs_ping (int argc, char **argv)
size_t protobuf_size = libp2p_message_protobuf_encode_size(msg);
unsigned char protobuf[protobuf_size];
libp2p_message_protobuf_encode(msg, &protobuf[0], protobuf_size, &protobuf_size);
libp2p_net_multistream_send(socket_fd, protobuf, protobuf_size);
libp2p_net_multistream_receive(socket_fd, &results, &results_size);
libp2p_net_multistream_write(stream, protobuf, protobuf_size);
libp2p_net_multistream_read(stream, &results, &results_size);
if (results_size != protobuf_size) {
fprintf(stderr, "PING unsuccessful. Original size: %lu, returned size: %lu\n", protobuf_size, results_size);

4
include/ipfs/core/ipfs_node.h
View file

@ -1,5 +1,9 @@
#pragma once
#include "ipfs/repo/config/identity.h"
#include "ipfs/repo/fsrepo/fs_repo.h"
#include "libp2p/peer/peerstore.h"
enum NodeMode { MODE_OFFLINE, MODE_ONLINE };
struct IpfsNode {

47
include/ipfs/routing/routing.h
View file

@ -1,7 +1,7 @@
#ifndef ROUTING_H
#define ROUTING_H
#pragma once
#include "libp2p/crypto/rsa.h"
#include "libp2p/record/message.h"
// offlineRouting implements the IpfsRouting interface,
// but only provides the capability to Put and Get signed dht
@ -10,23 +10,46 @@
struct FSRepo* datastore;
size_t ds_len;
struct RsaPrivateKey* sk;
struct Stream* stream;
/**
* Put a value in the datastore
* @param 1 the struct that contains connection information
* @param 2 the key
* @param 3 the size of the key
* @param 4 the value
* @param 5 the size of the value
* @returns 0 on success, otherwise -1
*/
int (*PutValue) (struct s_ipfs_routing*, char*, size_t, void*, size_t);
int (*GetValue) (struct s_ipfs_routing*, char*, size_t, void*, size_t*);
/**
* Get a value from the datastore
* @param 1 the struct that contains the connection information
* @param 2 the key to look for
* @param 3 the size of the key
* @param 4 a place to store the value
* @param 5 the size of the value
*/
int (*GetValue) (struct s_ipfs_routing*, char*, size_t, void**, size_t*);
/**
* Find a provider
*/
int (*FindProviders) (struct s_ipfs_routing*, char*, size_t, void*, size_t*);
/**
* Find a peer
*/
int (*FindPeer) (struct s_ipfs_routing*, char*, size_t, void*, size_t*);
int (*Provide) (struct s_ipfs_routing*, char*);
int (*Ping) (struct s_ipfs_routing*, char*, size_t);
/**
* Ping this instance
*/
int (*Ping) (struct s_ipfs_routing*, struct Libp2pMessage* message);
int (*Bootstrap) (struct s_ipfs_routing*);
};
typedef struct s_ipfs_routing ipfs_routing;
// offline routing routines.
ipfs_routing* ipfs_routing_new_offline (struct FSRepo* ds, struct RsaPrivateKey *private_key);
int ipfs_routing_offline_put_value (ipfs_routing* offlineRouting, char *key, size_t key_size, void *val, size_t vlen);
int ipfs_routing_offline_get_value (ipfs_routing* offlineRouting, char *key, size_t key_size, void *val, size_t *vlen);
int ipfs_routing_offline_find_providers (ipfs_routing* offlineRouting, char *key, size_t key_size, void *ret, size_t *rlen);
int ipfs_routing_offline_find_peer (ipfs_routing* offlineRouting, char *peer_id, size_t pid_size, void *ret, size_t *rlen);
int ipfs_routing_offline_provide (ipfs_routing* offlineRouting, char *cid);
int ipfs_routing_offline_ping (ipfs_routing* offlineRouting, char *peer_id, size_t pid_size);
int ipfs_routing_offline_bootstrap (ipfs_routing* offlineRouting);
#endif // ROUTING_H
ipfs_routing* ipfs_routing_new_online (struct FSRepo* ds, struct RsaPrivateKey* private_key, struct Stream* stream);
int ipfs_routing_generic_put_value (ipfs_routing* offlineRouting, char *key, size_t key_size, void *val, size_t vlen);int ipfs_routing_generic_get_value (ipfs_routing* offlineRouting, char *key, size_t key_size, void **val, size_t *vlen);

2
routing/Makefile
View file

@ -7,7 +7,7 @@ endif
LFLAGS =
DEPS =
OBJS = offline.o
OBJS = offline.o online.o
%.o: %.c $(DEPS)
$(CC) -c -o $@ $< $(CFLAGS)

48
routing/offline.c
View file

@ -5,28 +5,9 @@
#include "libp2p/record/record.h"
#include "ipfs/datastore/ds_helper.h"
#include "ipfs/merkledag/merkledag.h"
#include "ipfs/routing/routing.h"
ipfs_routing* ipfs_routing_new_offline (struct FSRepo* ds, struct RsaPrivateKey *private_key)
{
ipfs_routing *offlineRouting = malloc (sizeof(ipfs_routing));
if (offlineRouting) {
offlineRouting->datastore = ds;
offlineRouting->sk = private_key;
offlineRouting->PutValue = ipfs_routing_offline_put_value;
offlineRouting->GetValue = ipfs_routing_offline_get_value;
offlineRouting->FindProviders = ipfs_routing_offline_find_providers;
offlineRouting->FindPeer = ipfs_routing_offline_find_peer;
offlineRouting->Provide = ipfs_routing_offline_provide;
offlineRouting->Ping = ipfs_routing_offline_ping;
offlineRouting->Bootstrap = ipfs_routing_offline_bootstrap;
}
return offlineRouting;
}
int ipfs_routing_offline_put_value (ipfs_routing* offlineRouting, char *key, size_t key_size, void *val, size_t vlen)
int ipfs_routing_generic_put_value (ipfs_routing* offlineRouting, char *key, size_t key_size, void *val, size_t vlen)
{
int err;
char *record, *nkey;
@ -55,7 +36,7 @@ int ipfs_routing_offline_put_value (ipfs_routing* offlineRouting, char *key, siz
return 0; // success.
}
int ipfs_routing_offline_get_value (ipfs_routing* offlineRouting, char *key, size_t key_size, void *val, size_t *vlen)
int ipfs_routing_generic_get_value (ipfs_routing* offlineRouting, char *key, size_t key_size, void **val, size_t *vlen)
{
// TODO: Read from db, validate and decode before return.
return -1;
@ -76,7 +57,7 @@ int ipfs_routing_offline_provide (ipfs_routing* offlineRouting, char *cid)
return ErrOffline;
}
int ipfs_routing_offline_ping (ipfs_routing* offlineRouting, char *peer_id, size_t pid_size)
int ipfs_routing_offline_ping (ipfs_routing* offlineRouting, struct Libp2pMessage* message)
{
return ErrOffline;
}
@ -85,3 +66,24 @@ int ipfs_routing_offline_bootstrap (ipfs_routing* offlineRouting)
{
return ErrOffline;
}
ipfs_routing* ipfs_routing_new_offline (struct FSRepo* ds, struct RsaPrivateKey *private_key)
{
ipfs_routing *offlineRouting = malloc (sizeof(ipfs_routing));
if (offlineRouting) {
offlineRouting->datastore = ds;
offlineRouting->sk = private_key;
offlineRouting->stream = NULL;
offlineRouting->PutValue = ipfs_routing_generic_put_value;
offlineRouting->GetValue = ipfs_routing_generic_get_value;
offlineRouting->FindProviders = ipfs_routing_offline_find_providers;
offlineRouting->FindPeer = ipfs_routing_offline_find_peer;
offlineRouting->Provide = ipfs_routing_offline_provide;
offlineRouting->Ping = ipfs_routing_offline_ping;
offlineRouting->Bootstrap = ipfs_routing_offline_bootstrap;
}
return offlineRouting;
}

62
routing/online.c Normal file
View file

@ -0,0 +1,62 @@
#include <stdlib.h>
#include "ipfs/routing/routing.h"
#include "libp2p/record/message.h"
#include "libp2p/net/stream.h"
/**
* Implements the routing interface for network clients
*/
int ipfs_routing_online_find_providers(struct s_ipfs_routing* routing, char* val1, size_t val2, void* val3, size_t* val4) {
return 0;
}
int ipfs_routing_online_find_peer(struct s_ipfs_routing* routing, char* val1, size_t val2, void* val3, size_t* val4) {
return 0;
}
int ipfs_routing_online_provide(struct s_ipfs_routing* routing, char* val1) {
return 0;
}
int ipfs_routing_online_ping(struct s_ipfs_routing* routing, struct Libp2pMessage* message) {
// send the same stuff back
size_t protobuf_size = libp2p_message_protobuf_encode_size(message);
unsigned char protobuf[protobuf_size];
if (!libp2p_message_protobuf_encode(message, protobuf, protobuf_size, &protobuf_size)) {
return -1;
}
int retVal = routing->stream->write(routing->stream, protobuf, protobuf_size);
if (retVal == 0)
retVal = -1;
return retVal;
}
int ipfs_routing_online_bootstrap(struct s_ipfs_routing* routing) {
return 0;
}
/**
* Create a new ipfs_routing struct for online clients
* @param fs_repo the repo
* @param private_key the local private key
* @reurns the ipfs_routing struct that handles messages
*/
ipfs_routing* ipfs_routing_new_online (struct FSRepo* fs_repo, struct RsaPrivateKey *private_key, struct Stream* stream) {
ipfs_routing *onlineRouting = malloc (sizeof(ipfs_routing));
if (onlineRouting) {
onlineRouting->datastore = fs_repo;
onlineRouting->sk = private_key;
onlineRouting->stream = stream;
onlineRouting->PutValue = ipfs_routing_generic_put_value;
onlineRouting->GetValue = ipfs_routing_generic_get_value;
onlineRouting->FindProviders = ipfs_routing_online_find_providers;
onlineRouting->FindPeer = ipfs_routing_online_find_peer;
onlineRouting->Provide = ipfs_routing_online_provide;
onlineRouting->Ping = ipfs_routing_online_ping;
onlineRouting->Bootstrap = ipfs_routing_online_bootstrap;
}
return onlineRouting;
}