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https://github.com/ZeroTier/ZeroTierOne
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clang-format
This commit is contained in:
Adam Ierymenko
parent
d45f280cb7
commit
ba2a4a605c
140 changed files with 19214 additions and 17403 deletions
162
node/MAC.hpp
162
node/MAC.hpp
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@ -14,64 +14,81 @@
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#ifndef ZT_MAC_HPP
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#define ZT_MAC_HPP
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "Constants.hpp"
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#include "Utils.hpp"
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#include "Address.hpp"
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#include "Buffer.hpp"
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#include "Constants.hpp"
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#include "Utils.hpp"
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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namespace ZeroTier {
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/**
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* 48-byte Ethernet MAC address
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*/
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class MAC
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{
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public:
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MAC() : _m(0ULL) {}
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MAC(const MAC &m) : _m(m._m) {}
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class MAC {
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public:
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MAC() : _m(0ULL)
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{
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}
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MAC(const MAC& m) : _m(m._m)
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{
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}
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MAC(const unsigned char a,const unsigned char b,const unsigned char c,const unsigned char d,const unsigned char e,const unsigned char f) :
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_m( ((((uint64_t)a) & 0xffULL) << 40) |
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((((uint64_t)b) & 0xffULL) << 32) |
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((((uint64_t)c) & 0xffULL) << 24) |
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((((uint64_t)d) & 0xffULL) << 16) |
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((((uint64_t)e) & 0xffULL) << 8) |
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(((uint64_t)f) & 0xffULL) ) {}
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MAC(const void *bits,unsigned int len) { setTo(bits,len); }
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MAC(const Address &ztaddr,uint64_t nwid) { fromAddress(ztaddr,nwid); }
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MAC(const uint64_t m) : _m(m & 0xffffffffffffULL) {}
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MAC(const unsigned char a, const unsigned char b, const unsigned char c, const unsigned char d, const unsigned char e, const unsigned char f)
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: _m(((((uint64_t)a) & 0xffULL) << 40) | ((((uint64_t)b) & 0xffULL) << 32) | ((((uint64_t)c) & 0xffULL) << 24) | ((((uint64_t)d) & 0xffULL) << 16) | ((((uint64_t)e) & 0xffULL) << 8) | (((uint64_t)f) & 0xffULL))
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{
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}
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MAC(const void* bits, unsigned int len)
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{
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setTo(bits, len);
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}
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MAC(const Address& ztaddr, uint64_t nwid)
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{
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fromAddress(ztaddr, nwid);
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}
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MAC(const uint64_t m) : _m(m & 0xffffffffffffULL)
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{
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}
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/**
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* @return MAC in 64-bit integer
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*/
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inline uint64_t toInt() const { return _m; }
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inline uint64_t toInt() const
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{
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return _m;
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}
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/**
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* Set MAC to zero
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*/
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inline void zero() { _m = 0ULL; }
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inline void zero()
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{
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_m = 0ULL;
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}
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/**
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* @return True if MAC is non-zero
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*/
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inline operator bool() const { return (_m != 0ULL); }
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inline operator bool() const
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{
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return (_m != 0ULL);
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}
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/**
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* @param bits Raw MAC in big-endian byte order
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* @param len Length, must be >= 6 or result is zero
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*/
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inline void setTo(const void *bits,unsigned int len)
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inline void setTo(const void* bits, unsigned int len)
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{
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if (len < 6) {
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_m = 0ULL;
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return;
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}
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const unsigned char *b = (const unsigned char *)bits;
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_m = ((((uint64_t)*b) & 0xff) << 40);
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const unsigned char* b = (const unsigned char*)bits;
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_m = ((((uint64_t)*b) & 0xff) << 40);
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++b;
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_m |= ((((uint64_t)*b) & 0xff) << 32);
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++b;
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@ -88,12 +105,12 @@ public:
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* @param buf Destination buffer for MAC in big-endian byte order
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* @param len Length of buffer, must be >= 6 or nothing is copied
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*/
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inline void copyTo(void *buf,unsigned int len) const
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inline void copyTo(void* buf, unsigned int len) const
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{
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if (len < 6) {
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return;
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}
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unsigned char *b = (unsigned char *)buf;
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unsigned char* b = (unsigned char*)buf;
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*(b++) = (unsigned char)((_m >> 40) & 0xff);
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*(b++) = (unsigned char)((_m >> 32) & 0xff);
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*(b++) = (unsigned char)((_m >> 24) & 0xff);
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@ -107,10 +124,9 @@ public:
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*
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* @param b Buffer to append to
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*/
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template<unsigned int C>
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inline void appendTo(Buffer<C> &b) const
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template <unsigned int C> inline void appendTo(Buffer<C>& b) const
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{
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unsigned char *p = (unsigned char *)b.appendField(6);
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unsigned char* p = (unsigned char*)b.appendField(6);
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*(p++) = (unsigned char)((_m >> 40) & 0xff);
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*(p++) = (unsigned char)((_m >> 32) & 0xff);
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*(p++) = (unsigned char)((_m >> 24) & 0xff);
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@ -122,17 +138,26 @@ public:
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/**
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* @return True if this is broadcast (all 0xff)
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*/
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inline bool isBroadcast() const { return (_m == 0xffffffffffffULL); }
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inline bool isBroadcast() const
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{
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return (_m == 0xffffffffffffULL);
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}
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/**
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* @return True if this is a multicast MAC
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*/
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inline bool isMulticast() const { return ((_m & 0x010000000000ULL) != 0ULL); }
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inline bool isMulticast() const
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{
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return ((_m & 0x010000000000ULL) != 0ULL);
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}
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/**
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* @param True if this is a locally-administered MAC
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*/
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inline bool isLocallyAdministered() const { return ((_m & 0x020000000000ULL) != 0ULL); }
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inline bool isLocallyAdministered() const
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{
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return ((_m & 0x020000000000ULL) != 0ULL);
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}
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/**
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* Set this MAC to a MAC derived from an address and a network ID
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@ -140,10 +165,10 @@ public:
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* @param ztaddr ZeroTier address
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* @param nwid 64-bit network ID
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*/
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inline void fromAddress(const Address &ztaddr,uint64_t nwid)
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inline void fromAddress(const Address& ztaddr, uint64_t nwid)
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{
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uint64_t m = ((uint64_t)firstOctetForNetwork(nwid)) << 40;
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m |= ztaddr.toInt(); // a is 40 bits
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m |= ztaddr.toInt(); // a is 40 bits
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m ^= ((nwid >> 8) & 0xff) << 32;
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m ^= ((nwid >> 16) & 0xff) << 24;
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m ^= ((nwid >> 24) & 0xff) << 16;
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@ -161,8 +186,8 @@ public:
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*/
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inline Address toAddress(uint64_t nwid) const
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{
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uint64_t a = _m & 0xffffffffffULL; // least significant 40 bits of MAC are formed from address
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a ^= ((nwid >> 8) & 0xff) << 32; // ... XORed with bits 8-48 of the nwid in little-endian byte order, so unmask it
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uint64_t a = _m & 0xffffffffffULL; // least significant 40 bits of MAC are formed from address
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a ^= ((nwid >> 8) & 0xff) << 32; // ... XORed with bits 8-48 of the nwid in little-endian byte order, so unmask it
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a ^= ((nwid >> 16) & 0xff) << 24;
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a ^= ((nwid >> 24) & 0xff) << 16;
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a ^= ((nwid >> 32) & 0xff) << 8;
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@ -176,24 +201,33 @@ public:
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*/
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static inline unsigned char firstOctetForNetwork(uint64_t nwid)
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{
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unsigned char a = ((unsigned char)(nwid & 0xfe) | 0x02); // locally administered, not multicast, from LSB of network ID
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return ((a == 0x52) ? 0x32 : a); // blacklist 0x52 since it's used by KVM, libvirt, and other popular virtualization engines... seems de-facto standard on Linux
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unsigned char a = ((unsigned char)(nwid & 0xfe) | 0x02); // locally administered, not multicast, from LSB of network ID
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return ((a == 0x52) ? 0x32 : a); // blacklist 0x52 since it's used by KVM, libvirt, and other popular virtualization engines... seems de-facto standard on Linux
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}
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/**
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* @param i Value from 0 to 5 (inclusive)
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* @return Byte at said position (address interpreted in big-endian order)
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*/
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inline unsigned char operator[](unsigned int i) const { return (unsigned char)((_m >> (40 - (i * 8))) & 0xff); }
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inline unsigned char operator[](unsigned int i) const
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{
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return (unsigned char)((_m >> (40 - (i * 8))) & 0xff);
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}
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/**
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* @return 6, which is the number of bytes in a MAC, for container compliance
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*/
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inline unsigned int size() const { return 6; }
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inline unsigned int size() const
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{
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return 6;
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}
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inline unsigned long hashCode() const { return (unsigned long)_m; }
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inline unsigned long hashCode() const
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{
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return (unsigned long)_m;
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}
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inline char *toString(char buf[18]) const
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inline char* toString(char buf[18]) const
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{
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buf[0] = Utils::HEXCHARS[(_m >> 44) & 0xf];
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buf[1] = Utils::HEXCHARS[(_m >> 40) & 0xf];
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@ -216,28 +250,46 @@ public:
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return buf;
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}
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inline MAC &operator=(const MAC &m)
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inline MAC& operator=(const MAC& m)
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{
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_m = m._m;
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return *this;
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}
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inline MAC &operator=(const uint64_t m)
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inline MAC& operator=(const uint64_t m)
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{
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_m = m;
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return *this;
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}
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inline bool operator==(const MAC &m) const { return (_m == m._m); }
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inline bool operator!=(const MAC &m) const { return (_m != m._m); }
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inline bool operator<(const MAC &m) const { return (_m < m._m); }
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inline bool operator<=(const MAC &m) const { return (_m <= m._m); }
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inline bool operator>(const MAC &m) const { return (_m > m._m); }
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inline bool operator>=(const MAC &m) const { return (_m >= m._m); }
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inline bool operator==(const MAC& m) const
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{
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return (_m == m._m);
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}
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inline bool operator!=(const MAC& m) const
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{
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return (_m != m._m);
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}
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inline bool operator<(const MAC& m) const
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{
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return (_m < m._m);
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}
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inline bool operator<=(const MAC& m) const
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{
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return (_m <= m._m);
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}
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inline bool operator>(const MAC& m) const
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{
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return (_m > m._m);
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}
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inline bool operator>=(const MAC& m) const
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{
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return (_m >= m._m);
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}
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private:
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private:
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uint64_t _m;
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};
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} // namespace ZeroTier
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} // namespace ZeroTier
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#endif
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