Green-Sky/NGC_HS1
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ft raw packet send functions

Browse Source
This commit is contained in:
Green Sky 2022-10-09 02:28:55 +02:00
parent 213457fccf
commit 4afd13f70e
No known key found for this signature in database
2 changed files with 58 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
ngc_ext_common.hpp
View File

@ -66,7 +66,7 @@ enum _PacketType : uint8_t {
// acknowlage data fragments
// TODO: last 3 should be sufficient, 5 should be generous, would eleminate the byte for size
// - 1 byte (temporary_file_tf_id)
// - 1 byte (number of sequence ids to ack, this kind of depends on window size)
// // this is implicit (pkg size)- 1 byte (number of sequence ids to ack, this kind of depends on window size)
// - array [ (of sequece ids)
// - 2 bytes (sequece id)
// - ]

62
ngc_ft1.cpp
View File

@ -69,9 +69,8 @@ struct NGC_FT1 {
static bool _send_pkg_FT1_REQUEST(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t file_kind, const uint8_t* file_id, size_t file_id_size);
static bool _send_pkg_FT1_INIT(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t file_kind, uint64_t file_size, uint8_t transfer_id, const uint8_t* file_id, size_t file_id_size);
static bool _send_pkg_FT1_INIT_ACK(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id);
static bool _send_pkg_FT1_DATA(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id);
static bool _send_pkg_FT1_DATA_ACK(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id);
static bool _send_pkg_FT1_DATA(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id, uint16_t sequence_id, const uint8_t* data, size_t data_size);
static bool _send_pkg_FT1_DATA_ACK(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id, const uint16_t* seq_ids, size_t seq_ids_size);
static bool _send_pkg_FT1_DATA_FIN(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id);
static bool _send_pkg_FT1_DATA_FIN_ACK(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id);
@ -239,7 +238,7 @@ static bool _send_pkg_FT1_INIT(const Tox* tox, uint32_t group_number, uint32_t p
pkg.push_back(FT1_INIT);
pkg.push_back(file_kind);
for (size_t i = 0; i < sizeof(file_size); i++) {
pkg.push_back((file_size>>i) & 0xff);
pkg.push_back((file_size>>(i*8)) & 0xff);
}
pkg.push_back(transfer_id);
for (size_t i = 0; i < file_id_size; i++) {
@ -262,6 +261,59 @@ static bool _send_pkg_FT1_INIT_ACK(const Tox* tox, uint32_t group_number, uint32
return tox_group_send_custom_private_packet(tox, group_number, peer_number, true, pkg.data(), pkg.size(), nullptr);
}
static bool _send_pkg_FT1_DATA(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id, uint16_t sequence_id, const uint8_t* data, size_t data_size) {
// TODO
// check header_size+data_size <= max pkg size
std::vector<uint8_t> pkg;
pkg.push_back(FT1_DATA);
pkg.push_back(transfer_id);
pkg.push_back(sequence_id & 0xff);
pkg.push_back((sequence_id >> (1*8)) & 0xff);
// TODO: optimize
for (size_t i = 0; i < data_size; i++) {
pkg.push_back(data[i]);
}
// lossless?
return tox_group_send_custom_private_packet(tox, group_number, peer_number, true, pkg.data(), pkg.size(), nullptr);
}
static bool _send_pkg_FT1_DATA_ACK(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id, const uint16_t* seq_ids, size_t seq_ids_size) {
std::vector<uint8_t> pkg;
pkg.push_back(FT1_DATA_ACK);
pkg.push_back(transfer_id);
// TODO: optimize
for (size_t i = 0; i < seq_ids_size; i++) {
pkg.push_back(seq_ids[i] & 0xff);
pkg.push_back((seq_ids[i] >> (1*8)) & 0xff);
}
// lossless?
return tox_group_send_custom_private_packet(tox, group_number, peer_number, true, pkg.data(), pkg.size(), nullptr);
}
static bool _send_pkg_FT1_DATA_FIN(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id) {
std::vector<uint8_t> pkg;
pkg.push_back(FT1_DATA_FIN);
pkg.push_back(transfer_id);
// lossless?
return tox_group_send_custom_private_packet(tox, group_number, peer_number, true, pkg.data(), pkg.size(), nullptr);
}
static bool _send_pkg_FT1_DATA_FIN_ACK(const Tox* tox, uint32_t group_number, uint32_t peer_number, uint8_t transfer_id) {
std::vector<uint8_t> pkg;
pkg.push_back(FT1_DATA_FIN_ACK);
pkg.push_back(transfer_id);
// lossless?
return tox_group_send_custom_private_packet(tox, group_number, peer_number, true, pkg.data(), pkg.size(), nullptr);
}
#define _DATA_HAVE(x, error) if ((length - curser) < (x)) { error; }
static void _handle_FT1_REQUEST(
@ -324,7 +376,7 @@ static void _handle_FT1_INIT(
size_t file_size {0u};
_DATA_HAVE(sizeof(file_size), fprintf(stderr, "packet too small, missing file_size\n"); return)
for (size_t i = 0; i < sizeof(file_size); i++, curser++) {
file_size |= size_t(data[curser]) << i;
file_size |= size_t(data[curser]) << (i*8);
}
// - 1 byte (temporary_file_tf_id, for this peer only, technically just a prefix to distinguish between simultainious fts)