mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-05-25 22:14:37 +00:00
76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
|
|
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);
|
|
}
|
|
}
|