static void
http_callback(http_req_aux_t *req, void *opaque)
{
char errbuf[128];
tracker_torrent_t *tt = opaque;
torrent_t *to = tt->tt_torrent;
htsmsg_t *msg;
net_addr_t na;
assert(tt->tt_http_req != NULL);
tt->tt_http_req = NULL;
buf_t *b = http_req_get_result(req);
tt->tt_interval = MIN(3600, tt->tt_interval * 2);
if(b != NULL) {
msg = bencode_deserialize(buf_cstr(b),
buf_cstr(b) + buf_size(b),
errbuf, sizeof(errbuf), NULL, NULL);
if(msg != NULL) {
const char *err = htsmsg_get_str(msg, "failure reason");
if(err != NULL) {
tracker_trace(tt->tt_tracker, "%s for %s", err, to->to_title);
goto done;
}
const char *trackerid = htsmsg_get_str(msg, "trackerid");
if(trackerid != NULL)
mystrset(&tt->tt_trackerid, trackerid);
tt->tt_interval =
htsmsg_get_u32_or_default(msg, "min interval",
htsmsg_get_u32_or_default(msg,
"interval", 1800));
htsmsg_t *peers = htsmsg_get_list(msg, "peers");
if(peers != NULL) {
htsmsg_field_t *f;
HTSMSG_FOREACH(f, peers) {
htsmsg_t *sub = htsmsg_get_map_by_field(f);
if(sub == NULL)
continue;
const char *ip = htsmsg_get_str(sub, "ip");
if(ip == NULL)
continue;
if(net_resolve_numeric(ip, &na))
continue;
na.na_port = htsmsg_get_u32_or_default(sub, "port", 0);
if(na.na_port == 0)
continue;
peer_add(to, &na);
}
}
void protocol_recvpacket(const char *buffer, const int buffer_len,
struct udpsrvsession_s *session)
{
uint16_t len;
int i;
void *p;
const struct protocol_ip *ip = (struct protocol_ip *) buffer;
struct peer_s *peer;
if (buffer_len < 4)
return;
len = ntohs(ip->tot_len);
#if DEBUG > 2
log_info("UDP: sizes %d = %d.\n", len, buffer_len);
if (buffer_len > 27)
{
uint16_t *ping = (uint16_t*) &buffer[26];
log_debug("Ping%d id: %d\n", ip->version, ntohs(*ping));
}
#endif
if (ip->version == 4) //IPv4 packet
{
if (session->peer == NULL
|| (session->peer->stat & PEER_STAT_ID) == 0 || buffer_len < 20)
return;
if (router_checksrc((struct in_addr *) &ip->daddr, &tun_selfpeer) !=
0)
{
log_debug("Not for me: %s\n",
inet_ntoa(*(struct in_addr *) &ip->daddr));
return;
}
if (router_checksrc((struct in_addr *) &ip->saddr, session->peer) !=
0)
{
log_debug("Not from there: %s\n",
inet_ntoa(*(struct in_addr *) &ip->saddr));
return;
}
if (len > buffer_len)
{
log_error("UDP: Invalid size %d > %d.\n", len, buffer_len);
return;
}
tundev_write(buffer, len);
}
//else if (ip->version == 6) //IPv6 Packet
else if (ip->version == PROTOCOL1_V && ip->ihl == 1) //Internal packets v1
{
if (((struct protocol_1_s *) ip)->pid == PROTOCOL1_IDA)
{
log_debug("ACK...\n");
if (session->peer != NULL
&& (session->peer->stat & PEER_STAT_IDK) == 0)
{
pthread_mutex_lock(&session->peer->modify_mutex);
session->peer->stat |= PEER_STAT_IDK;
pthread_mutex_unlock(&session->peer->modify_mutex);
}
if ((session->peer->stat & PEER_STAT_ID) != 0)
log_info("New peer authenticated.\n");
}
else if (((struct protocol_1_s *) ip)->pid == PROTOCOL1_ID)
{
log_debug("ID...\n");
if (session->peer == NULL)
session->peer = peer_create();
pthread_mutex_lock(&session->peer->modify_mutex);
peer = session->peer;
peer->udpsrvsession = session;
if ((peer->stat & PEER_STAT_ID) == 0)
{
if (protocol_processpeer(peer,
&((struct protocol_1id_s *)
buffer)->peer,
buffer_len -
sizeof(struct protocol_1id_s) +
sizeof(struct protocol_peer_s)) < 0)
{
log_error("invalid ID\n");
//-TODO: Check
pthread_mutex_unlock(&peer->modify_mutex);
peer_destroy(peer);
return;
}
log_debug("Validating id.\n");
/* Check for valid routes shared */
if (protocol_checknameconstraints(peer) < 0)
{
log_debug
("Peer trying to request for unallowed network...\n");
pthread_mutex_unlock(&peer->modify_mutex);
peer_destroy(peer);
return;
}
peer->stat |= PEER_STAT_ID;
timeout_update(&peer->timeout);
if ((session->peer->stat & PEER_STAT_IDK) != 0)
log_info("New peer authenticated.\n");
pthread_mutex_unlock(&peer->modify_mutex);
if (peer_add(peer, session) < 1)
{
peer_destroy(peer);
return;
}
}
//-TODO: JOIN packets
protocol_sendpacket(session, PROTOCOL1_IDA);
if ((peer->stat & PEER_STAT_IDK) == 0)
protocol_sendpacket(session, PROTOCOL1_ID);
}
else if (((struct protocol_1_s *) ip)->pid == PROTOCOL1_KA)
{
if (len > buffer_len)
return;
log_debug("KA...\n");
if (session->peer != NULL
&& (session->peer->stat & PEER_STAT_ID) != 0)
{
timeout_update(&session->peer->timeout);
p = (void *) buffer + sizeof(struct protocol_1ka_s);
while (p <= (void *) &buffer[len - 1])
{
peer = peer_create();
i =
protocol_processpeer(peer,
(struct protocol_peer_s *) p,
(int) ((void *)
&buffer[len - 1] - p));
if (i < 0)
{
peer_destroy(peer);
return;
}
p += i;
if (router_existpeer
(peer->shared_networks,
peer->shared_networks_len) == 0)
peer_addnew(peer);
else
peer_destroy(peer);
}
}
}
else
{
log_error("Unknown paquet\n");
return;
}
}
else
{
log_error("Unknown paquet\n");
return;
}
if (len + 4 <= buffer_len)
protocol_recvpacket(buffer + len, buffer_len - len, session);
}
void tapioca_add_node(int node_id, char* address, int port) {
peer_add(node_id, address, port);
}
