Green-Sky/solanaceae_ngc_ft1
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extend the protocol to support larger data packets and set it to the new tox constants numbers

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This commit is contained in:
Green Sky
2023-10-11 03:00:03 +02:00
parent 27fd9e688b
commit 77f21f01e9
4 changed files with 84 additions and 21 deletions
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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,