Green-Sky/solanaceae_ngc_ft1
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

extend the protocol to support larger data packets and set it to the new tox constants numbers

Browse Source
This commit is contained in:
Green Sky 2023-10-11 03:00:03 +02:00
parent 27fd9e688b
commit 77f21f01e9
No known key found for this signature in database
4 changed files with 84 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
solanaceae/ngc_ext/ngcext.cpp
View File

@ -112,6 +112,8 @@ bool NGCEXTEventProvider::parse_ft1_init_ack(
_DATA_HAVE(sizeof(e.transfer_id), std::cerr << "NGCEXT: packet too small, missing transfer_id\n"; return false)
e.transfer_id = data[curser++];
e.max_lossy_data_size = 500-4; // -4 and 500 are hardcoded
return dispatch(
NGCEXT_Event::FT1_INIT_ACK,
e
@ -224,6 +226,41 @@ bool NGCEXTEventProvider::parse_ft1_message(
);
}
bool NGCEXTEventProvider::parse_ft1_init_ack_v2(
uint32_t group_number, uint32_t peer_number,
const uint8_t* data, size_t data_size,
bool _private
) {
if (!_private) {
std::cerr << "NGCEXT: ft1_init_ack_v2 cant be public\n";
return false;
}
Events::NGCEXT_ft1_init_ack e;
e.group_number = group_number;
e.peer_number = peer_number;
size_t curser = 0;
// - 1 byte (temporary_file_tf_id)
_DATA_HAVE(sizeof(e.transfer_id), std::cerr << "NGCEXT: packet too small, missing transfer_id\n"; return false)
e.transfer_id = data[curser++];
// - 2 byte (max_lossy_data_size)
if ((data_size - curser) >= sizeof(e.max_lossy_data_size)) {
e.max_lossy_data_size = 0;
for (size_t i = 0; i < sizeof(e.max_lossy_data_size); i++, curser++) {
e.max_lossy_data_size |= uint16_t(data[curser]) << (i*8);
}
} else {
e.max_lossy_data_size = 500-4; // default
}
return dispatch(
NGCEXT_Event::FT1_INIT_ACK,
e
);
}
bool NGCEXTEventProvider::handlePacket(
const uint32_t group_number,
const uint32_t peer_number,
@ -247,7 +284,8 @@ bool NGCEXTEventProvider::handlePacket(
case NGCEXT_Event::FT1_INIT:
return parse_ft1_init(group_number, peer_number, data+1, data_size-1, _private);
case NGCEXT_Event::FT1_INIT_ACK:
return parse_ft1_init_ack(group_number, peer_number, data+1, data_size-1, _private);
//return parse_ft1_init_ack(group_number, peer_number, data+1, data_size-1, _private);
return parse_ft1_init_ack_v2(group_number, peer_number, data+1, data_size-1, _private);
case NGCEXT_Event::FT1_DATA:
return parse_ft1_data(group_number, peer_number, data+1, data_size-1, _private);
case NGCEXT_Event::FT1_DATA_ACK:

12
solanaceae/ngc_ext/ngcext.hpp
View File

@ -70,8 +70,6 @@ namespace Events {
// - X bytes (file_kind dependent id, differnt sizes)
std::vector<uint8_t> file_id;
// TODO: max supported lossy packet size
};
struct NGCEXT_ft1_init_ack {
@ -81,7 +79,8 @@ namespace Events {
// - 1 byte (transfer_id)
uint8_t transfer_id;
// TODO: max supported lossy packet size
// - 2 byte (self_max_lossy_data_size)
uint16_t max_lossy_data_size;
};
struct NGCEXT_ft1_data {
@ -163,6 +162,7 @@ enum class NGCEXT_Event : uint8_t {
// acknowlage init (like an accept)
// like tox ft control continue
// - 1 byte (transfer_id)
// - 2 byte (self_max_lossy_data_size) (optional since v2)
FT1_INIT_ACK,
// TODO: init deny, speed up non acceptance
@ -263,6 +263,12 @@ class NGCEXTEventProvider : public ToxEventI, public NGCEXTEventProviderI {
bool _private
);
bool parse_ft1_init_ack_v2(
uint32_t group_number, uint32_t peer_number,
const uint8_t* data, size_t data_size,
bool _private
);
bool handlePacket(
const uint32_t group_number,
const uint32_t peer_number,

22
solanaceae/ngc_ft1/ngcft1.cpp
View File

@ -71,6 +71,12 @@ bool NGCFT1::sendPKG_FT1_INIT_ACK(
pkg.push_back(static_cast<uint8_t>(NGCEXT_Event::FT1_INIT_ACK));
pkg.push_back(transfer_id);
// - 2 bytes max_lossy_data_size
const uint16_t max_lossy_data_size = _t.toxGroupMaxCustomLossyPacketLength() - 4;
for (size_t i = 0; i < sizeof(uint16_t); i++) {
pkg.push_back((max_lossy_data_size>>(i*8)) & 0xff);
}
// lossless
return _t.toxGroupSendCustomPrivatePacket(group_number, peer_number, true, pkg) == TOX_ERR_GROUP_SEND_CUSTOM_PRIVATE_PACKET_OK;
}
@ -283,6 +289,7 @@ void NGCFT1::updateSendTransfer(float time_delta, uint32_t group_number, uint32_
}
void NGCFT1::iteratePeer(float time_delta, uint32_t group_number, uint32_t peer_number, Group::Peer& peer) {
if (peer.cca) {
auto timeouts = peer.cca->getTimeouts();
std::set<CCAI::SeqIDType> timeouts_set{timeouts.cbegin(), timeouts.cend()};
@ -302,6 +309,7 @@ void NGCFT1::iteratePeer(float time_delta, uint32_t group_number, uint32_t peer_
updateSendTransfer(time_delta, group_number, peer_number, peer, idx, timeouts_set, can_packet_size);
}
}
}
// TODO: receiving tranfers?
}
@ -473,7 +481,7 @@ bool NGCFT1::onEvent(const Events::NGCEXT_ft1_init& e) {
bool NGCFT1::onEvent(const Events::NGCEXT_ft1_init_ack& e) {
//#if !NDEBUG
std::cout << "NGCFT1: FT1_INIT_ACK\n";
std::cout << "NGCFT1: FT1_INIT_ACK mds:" << e.max_lossy_data_size << "\n";
//#endif
// we now should start sending data
@ -493,10 +501,18 @@ bool NGCFT1::onEvent(const Events::NGCEXT_ft1_init_ack& e) {
using State = Group::Peer::SendTransfer::State;
if (transfer.state != State::INIT_SENT) {
std::cerr << "NGCFT1 error: inti_ack but not in INIT_SENT state\n";
std::cerr << "NGCFT1 error: init_ack but not in INIT_SENT state\n";
return true;
}
// negotiated packet_data_size
const auto negotiated_packet_data_size = std::min<uint32_t>(e.max_lossy_data_size, _t.toxGroupMaxCustomLossyPacketLength()-4);
// TODO: reset cca with new pkg size
if (!peer.cca) {
peer.max_packet_data_size = negotiated_packet_data_size;
peer.cca = std::make_unique<CUBIC>(peer.max_packet_data_size);
}
// iterate will now call NGC_FT1_send_data_cb
transfer.state = State::SENDING;
transfer.time_since_activity = 0.f;
@ -698,7 +714,7 @@ bool NGCFT1::onToxEvent(const Tox_Event_Group_Peer_Exit* e) {
}
// reset cca
peer.cca = std::make_unique<CUBIC>(500-4); // TODO: replace with tox_group_max_custom_lossy_packet_length()-4
peer.cca.reset(); // dont actually reallocate
return false;
}

5
solanaceae/ngc_ft1/ngcft1.hpp
View File

@ -2,6 +2,7 @@
// solanaceae port of tox_ngc_ft1
#include <cstdint>
#include <solanaceae/toxcore/tox_interface.hpp>
#include <solanaceae/toxcore/tox_event_interface.hpp>
@ -141,7 +142,9 @@ class NGCFT1 : public ToxEventI, public NGCEXTEventI, public NGCFT1EventProvider
struct Group {
struct Peer {
std::unique_ptr<CCAI> cca = std::make_unique<CUBIC>(500-4); // TODO: replace with tox_group_max_custom_lossy_packet_length()-4
uint32_t max_packet_data_size {500-4};
//std::unique_ptr<CCAI> cca = std::make_unique<CUBIC>(max_packet_data_size); // TODO: replace with tox_group_max_custom_lossy_packet_length()-4
std::unique_ptr<CCAI> cca;
struct RecvTransfer {
uint32_t file_kind;