Green-Sky/solanaceae_tox_p2prng
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packet id and id parsing

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This commit is contained in:
Green Sky
2024-08-05 09:57:25 +02:00
parent c82e9a7ec4
commit 868e4c33d5
2 changed files with 67 additions and 26 deletions
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70
src/solanaceae/tox_p2prng/tox_p2prng.cpp
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@@ -1,5 +1,7 @@
#include "./tox_p2prng.hpp"
#include <iostream>
// packets:
//
// init_with_hmac
@@ -21,14 +23,6 @@
// secret_request
// - id
enum PKG {
INIT_WITH_HMAC,
HMAC,
HMAC_REQUEST,
SECRET,
SECRET_REQUEST,
};
ToxP2PRNG::ToxP2PRNG(
ToxI& t,
ToxEventProviderI& tep,
@@ -60,6 +54,7 @@ ByteSpan ToxP2PRNG::getResult(const ByteSpan id) {
bool ToxP2PRNG::handlePacket(
Contact3Handle c,
PKG pkg_type,
const uint8_t* data,
const size_t data_size
) {
@@ -67,19 +62,25 @@ bool ToxP2PRNG::handlePacket(
return false; // waht
}
PKG pkg_type = static_cast<PKG>(data[0]);
// rn all are prefixed with ID, so here we go
if (data_size < 32) {
std::cerr << "TP2PRNG error: packet without id\n";
return false;
}
ByteSpan id{data, 32};
switch (pkg_type) {
case PKG::INIT_WITH_HMAC:
return parse_init_with_hmac(c, data+1, data_size-1);
return parse_init_with_hmac(c, id, data+32, data_size-(32));
case PKG::HMAC:
return parse_hmac(c, data+1, data_size-1);
return parse_hmac(c, id, data+32, data_size-(32));
case PKG::HMAC_REQUEST:
return parse_hmac_request(c, data+1, data_size-1);
return parse_hmac_request(c, id, data+32, data_size-(32));
case PKG::SECRET:
return parse_secret(c, data+1, data_size-1);
return parse_secret(c, id, data+32, data_size-(32));
case PKG::SECRET_REQUEST:
return parse_secret_request(c, data+1, data_size-1);
return parse_secret_request(c, id, data+32, data_size-(32));
default:
return false;
}
@@ -93,12 +94,23 @@ bool ToxP2PRNG::handleFriendPacket(
const uint8_t* data,
const size_t data_size
) {
// packet id + packet id + id
if (data_size < 1+1+32) {
return false;
}
if (data[0] != 0xB1) { // 177
return false;
}
PKG tpr_pkg_type = static_cast<PKG>(data[1]);
auto c = _tcm.getContactFriend(friend_number);
if (!static_cast<bool>(c)) {
return false;
}
return handlePacket(c, data, data_size);
return handlePacket(c, tpr_pkg_type, data+2, data_size-2);
}
bool ToxP2PRNG::handleGroupPacket(
@@ -108,39 +120,55 @@ bool ToxP2PRNG::handleGroupPacket(
const size_t data_size,
const bool /*_private*/
) {
// packet id + packet id + id
if (data_size < 1+1+32) {
return false;
}
if (data[0] != (0x80 | 38u)) { // 0xa6 / 166
return false;
}
PKG tpr_pkg_type = static_cast<PKG>(data[1]);
auto c = _tcm.getContactGroupPeer(group_number, peer_number);
if (!static_cast<bool>(c)) {
return false;
}
return handlePacket(c, data, data_size);
return handlePacket(c, tpr_pkg_type, data+2, data_size-2);
}
bool ToxP2PRNG::parse_init_with_hmac(Contact3Handle c, const uint8_t* data, size_t data_size) {
bool ToxP2PRNG::parse_init_with_hmac(Contact3Handle c, ByteSpan id, const uint8_t* data, size_t data_size) {
std::cerr << "TP2PRNG: got packet init_with_hmac\n";
size_t curser = 0;
return false;
}
bool ToxP2PRNG::parse_hmac(Contact3Handle c, const uint8_t* data, size_t data_size) {
bool ToxP2PRNG::parse_hmac(Contact3Handle c, ByteSpan id, const uint8_t* data, size_t data_size) {
std::cerr << "TP2PRNG: got packet hmac\n";
size_t curser = 0;
return false;
}
bool ToxP2PRNG::parse_hmac_request(Contact3Handle c, const uint8_t* data, size_t data_size) {
bool ToxP2PRNG::parse_hmac_request(Contact3Handle c, ByteSpan id, const uint8_t* data, size_t data_size) {
std::cerr << "TP2PRNG: got packet hmac_request\n";
size_t curser = 0;
return false;
}
bool ToxP2PRNG::parse_secret(Contact3Handle c, const uint8_t* data, size_t data_size) {
bool ToxP2PRNG::parse_secret(Contact3Handle c, ByteSpan id, const uint8_t* data, size_t data_size) {
std::cerr << "TP2PRNG: got packet secret\n";
size_t curser = 0;
return false;
}
bool ToxP2PRNG::parse_secret_request(Contact3Handle c, const uint8_t* data, size_t data_size) {
bool ToxP2PRNG::parse_secret_request(Contact3Handle c, ByteSpan id, const uint8_t* data, size_t data_size) {
std::cerr << "TP2PRNG: got packet secret_request\n";
size_t curser = 0;
return false;