Kernel/include/net/net.hpp
2024-01-19 06:47:42 +02:00

233 lines
7.2 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/>.
*/
#ifndef __FENNIX_KERNEL_NETWORK_H__
#define __FENNIX_KERNEL_NETWORK_H__
#include <types.h>
#include <printf.h>
// #define DEBUG_NETWORK 1
#ifdef DEBUG_NETWORK
#define netdbg(m, ...) debug(m, ##__VA_ARGS__)
void DbgNetwork();
void DbgDumpData(const char *Description, void *Address, unsigned long Length);
#else
#define netdbg(m, ...)
static inline void DbgNetwork() { return; }
static inline void DbgDumpData(const char *Description, void *Address, unsigned long Length)
{
UNUSED(Description);
UNUSED(Address);
UNUSED(Length);
return;
}
#endif
enum Endianness
{
LITTLE_ENDIAN,
BIG_ENDIAN
};
struct MediaAccessControl
{
uint8_t Address[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
Endianness Endianess = LITTLE_ENDIAN;
inline bool operator==(const MediaAccessControl &lhs) const
{
return lhs.Address[0] == this->Address[0] &&
lhs.Address[1] == this->Address[1] &&
lhs.Address[2] == this->Address[2] &&
lhs.Address[3] == this->Address[3] &&
lhs.Address[4] == this->Address[4] &&
lhs.Address[5] == this->Address[5];
}
inline bool operator==(const uint48_t &lhs) const
{
MediaAccessControl MAC;
MAC.Address[0] = (uint8_t)((lhs >> 40) & 0xFF);
MAC.Address[1] = (uint8_t)((lhs >> 32) & 0xFF);
MAC.Address[2] = (uint8_t)((lhs >> 24) & 0xFF);
MAC.Address[3] = (uint8_t)((lhs >> 16) & 0xFF);
MAC.Address[4] = (uint8_t)((lhs >> 8) & 0xFF);
MAC.Address[5] = (uint8_t)(lhs & 0xFF);
return MAC.Address[0] == this->Address[0] &&
MAC.Address[1] == this->Address[1] &&
MAC.Address[2] == this->Address[2] &&
MAC.Address[3] == this->Address[3] &&
MAC.Address[4] == this->Address[4] &&
MAC.Address[5] == this->Address[5];
}
inline bool operator!=(const MediaAccessControl &lhs) const { return !(*this == lhs); }
inline bool operator!=(const uint48_t &lhs) const { return !(*this == lhs); }
inline uint48_t ToHex()
{
return ((uint48_t)this->Address[0] << 40) |
((uint48_t)this->Address[1] << 32) |
((uint48_t)this->Address[2] << 24) |
((uint48_t)this->Address[3] << 16) |
((uint48_t)this->Address[4] << 8) |
((uint48_t)this->Address[5]);
}
inline MediaAccessControl FromHex(uint48_t Hex)
{
this->Address[0] = (uint8_t)((Hex >> 40) & 0xFF);
this->Address[1] = (uint8_t)((Hex >> 32) & 0xFF);
this->Address[2] = (uint8_t)((Hex >> 24) & 0xFF);
this->Address[3] = (uint8_t)((Hex >> 16) & 0xFF);
this->Address[4] = (uint8_t)((Hex >> 8) & 0xFF);
this->Address[5] = (uint8_t)(Hex & 0xFF);
return *this;
}
inline bool Valid()
{
// TODO: More complex MAC validation
return (this->Address[0] != 0 ||
this->Address[1] != 0 ||
this->Address[2] != 0 ||
this->Address[3] != 0 ||
this->Address[4] != 0 ||
this->Address[5] != 0) &&
(this->Address[0] != 0xFF ||
this->Address[1] != 0xFF ||
this->Address[2] != 0xFF ||
this->Address[3] != 0xFF ||
this->Address[4] != 0xFF ||
this->Address[5] != 0xFF);
}
char *ToString()
{
static char Buffer[18];
sprintf(Buffer, "%02X:%02X:%02X:%02X:%02X:%02X", this->Address[0], this->Address[1], this->Address[2], this->Address[3], this->Address[4], this->Address[5]);
return Buffer;
}
};
/* There's a confusion between LSB and MSB. Not sure if "ToStringLittleEndian" and "ToStringBigEndian" are implemented correctly.
Because x86 is a LSB architecture, I'm assuming that the "ToStringLittleEndian" is correct? */
struct InternetProtocol
{
struct Version4
{
uint8_t Address[4] = {255, 255, 255, 255};
Endianness Endianess = LITTLE_ENDIAN;
inline bool operator==(const InternetProtocol::Version4 &lhs) const
{
return lhs.Address[0] == this->Address[0] &&
lhs.Address[1] == this->Address[1] &&
lhs.Address[2] == this->Address[2] &&
lhs.Address[3] == this->Address[3];
}
inline bool operator==(const uint32_t &lhs) const
{
InternetProtocol::Version4 IP;
IP.Address[0] = (uint8_t)((lhs >> 24) & 0xFF);
IP.Address[1] = (uint8_t)((lhs >> 16) & 0xFF);
IP.Address[2] = (uint8_t)((lhs >> 8) & 0xFF);
IP.Address[3] = (uint8_t)(lhs & 0xFF);
return IP.Address[0] == this->Address[0] &&
IP.Address[1] == this->Address[1] &&
IP.Address[2] == this->Address[2] &&
IP.Address[3] == this->Address[3];
}
inline bool operator!=(const InternetProtocol::Version4 &lhs) const { return !(*this == lhs); }
inline bool operator!=(const uint32_t &lhs) const { return !(*this == lhs); }
inline uint32_t ToHex()
{
return ((uint32_t)this->Address[0] << 24) |
((uint32_t)this->Address[1] << 16) |
((uint32_t)this->Address[2] << 8) |
((uint32_t)this->Address[3]);
}
inline InternetProtocol::Version4 FromHex(uint32_t Hex)
{
this->Address[0] = (uint8_t)((Hex >> 24) & 0xFF);
this->Address[1] = (uint8_t)((Hex >> 16) & 0xFF);
this->Address[2] = (uint8_t)((Hex >> 8) & 0xFF);
this->Address[3] = (uint8_t)(Hex & 0xFF);
return *this;
}
char *ToStringLittleEndian()
{
static char Buffer[16];
sprintf(Buffer, "%d.%d.%d.%d", this->Address[0], this->Address[1], this->Address[2], this->Address[3]);
return Buffer;
}
char *ToStringBigEndian()
{
static char Buffer[16];
sprintf(Buffer, "%d.%d.%d.%d", this->Address[3], this->Address[2], this->Address[1], this->Address[0]);
return Buffer;
}
} v4;
struct Version6
{
uint16_t Address[8] = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};
Endianness Endianess = LITTLE_ENDIAN;
inline bool operator==(const InternetProtocol::Version6 &lhs) const
{
return lhs.Address[0] == this->Address[0] &&
lhs.Address[1] == this->Address[1] &&
lhs.Address[2] == this->Address[2] &&
lhs.Address[3] == this->Address[3] &&
lhs.Address[4] == this->Address[4] &&
lhs.Address[5] == this->Address[5] &&
lhs.Address[6] == this->Address[6] &&
lhs.Address[7] == this->Address[7];
}
inline bool operator!=(const InternetProtocol::Version6 &lhs) const { return !(*this == lhs); }
char *ToStringLittleEndian()
{
static char Buffer[40];
sprintf(Buffer, "%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X", this->Address[0], this->Address[1], this->Address[2], this->Address[3], this->Address[4], this->Address[5], this->Address[6], this->Address[7]);
return Buffer;
}
char *ToStringBigEndian()
{
static char Buffer[40];
sprintf(Buffer, "%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X", this->Address[7], this->Address[6], this->Address[5], this->Address[4], this->Address[3], this->Address[2], this->Address[1], this->Address[0]);
return Buffer;
}
} v6;
};
uint16_t CalculateChecksum(uint16_t *Data, size_t Length);
#endif // !__FENNIX_KERNEL_NETWORK_H__