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Merge remote-tracking branch 'Kernel/master'

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EnderIce2
2024-11-20 05:00:33 +02:00
parent 93d408e0af 19f2a78d35
commit 682c84b2af
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75
Kernel/network/ntp.cpp Normal file
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/*
This file is part of Fennix Kernel.
Fennix Kernel is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Kernel is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#include <net/ntp.hpp>
#include <debug.h>
#include "../kernel.h"
namespace NetworkNTP
{
void NTP::OnUDPPacketReceived(NetworkUDP::Socket *Socket, uint8_t *Data, size_t Length)
{
UNUSED(Socket);
UNUSED(Length);
this->NTPPacket = *(NTPHeader *)Data;
this->TimeReceived = true;
netdbg("Received UDP packet for NTP.");
}
NTP::NTP(NetworkUDP::Socket *Socket) : NetworkUDP::UDPEvents()
{
debug("NTP interface %#lx created.", this);
this->UDPSocket = Socket;
}
NTP::~NTP()
{
debug("NTP interface %#lx destroyed.", this);
}
int NTP::ReadTime()
{
netdbg("Requesting time");
this->TimeReceived = false;
NTPHeader ReqPacket; // This may require physical memory allocation but Ethernet already has this job.
memset(&ReqPacket, 0, sizeof(NTPHeader)); // Zero out the packet
*((char *)&ReqPacket) = 0x1b; // byteswap nightmare, this is the code below but in little endian
// ReqPacket.LeapIndicator = 0;
// ReqPacket.VersionNumber = 3;
// ReqPacket.Mode = 3;
UDPSocket->SocketUDP->Send(UDPSocket, (uint8_t *)&ReqPacket, sizeof(NTPHeader));
debug("Waiting for response...");
int RequestTimeout = 20;
while (!this->TimeReceived)
{
if (--RequestTimeout == 0)
{
warn("Request timeout.");
return 0;
}
netdbg("Still waiting...");
TaskManager->Sleep(1000);
}
uint64_t UnixTimestamp = (b32(this->NTPPacket.TransmitTimestamp[0])) - 2208988800;
debug("Unix time: %d", UnixTimestamp);
return s_cst(int, UnixTimestamp);
}
}