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Imported Upstream version 1.2.4

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didyouexpectthat 2018-01-12 18:20:00 -08:00
commit 4722a0b75a
398 changed files with 38633 additions and 24919 deletions
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76
node/InetAddress.hpp
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@ -300,6 +300,19 @@ struct InetAddress : public sockaddr_storage
*/
inline unsigned int netmaskBits() const throw() { return port(); }
/**
* @return True if netmask bits is valid for the address type
*/
inline bool netmaskBitsValid() const
{
const unsigned int n = port();
switch(ss_family) {
case AF_INET: return (n <= 32);
case AF_INET6: return (n <= 128);
}
return false;
}
/**
* Alias for port()
*
@ -356,7 +369,6 @@ struct InetAddress : public sockaddr_storage
* @return pointer to raw address bytes or NULL if not available
*/
inline const void *rawIpData() const
throw()
{
switch(ss_family) {
case AF_INET: return (const void *)&(reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr);
@ -365,6 +377,25 @@ struct InetAddress : public sockaddr_storage
}
}
/**
* @return InetAddress containing only the IP portion of this address and a zero port, or NULL if not IPv4 or IPv6
*/
inline InetAddress ipOnly() const
{
InetAddress r;
switch(ss_family) {
case AF_INET:
r.ss_family = AF_INET;
reinterpret_cast<struct sockaddr_in *>(&r)->sin_addr.s_addr = reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr;
break;
case AF_INET6:
r.ss_family = AF_INET6;
memcpy(reinterpret_cast<struct sockaddr_in6 *>(&r)->sin6_addr.s6_addr,reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr,16);
break;
}
return r;
}
/**
* Performs an IP-only comparison or, if that is impossible, a memcmp()
*
@ -383,6 +414,25 @@ struct InetAddress : public sockaddr_storage
return false;
}
inline unsigned long hashCode() const
{
if (ss_family == AF_INET) {
return ((unsigned long)reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr + (unsigned long)reinterpret_cast<const struct sockaddr_in *>(this)->sin_port);
} else if (ss_family == AF_INET6) {
unsigned long tmp = reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_port;
const uint8_t *a = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr);
for(long i=0;i<16;++i)
reinterpret_cast<uint8_t *>(&tmp)[i % sizeof(tmp)] ^= a[i];
return tmp;
} else {
unsigned long tmp = reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_port;
const uint8_t *a = reinterpret_cast<const uint8_t *>(this);
for(long i=0;i<(long)sizeof(InetAddress);++i)
reinterpret_cast<uint8_t *>(&tmp)[i % sizeof(tmp)] ^= a[i];
return tmp;
}
}
/**
* Set to null/zero
*/
@ -399,6 +449,30 @@ struct InetAddress : public sockaddr_storage
bool isNetwork() const
throw();
/**
* @return 14-bit (0-16383) hash of this IP's first 24 or 48 bits (for V4 or V6) for rate limiting code, or 0 if non-IP
*/
inline unsigned long rateGateHash() const
{
unsigned long h = 0;
switch(ss_family) {
case AF_INET:
h = (Utils::ntoh((uint32_t)reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr) & 0xffffff00) >> 8;
h ^= (h >> 14);
break;
case AF_INET6: {
const uint8_t *ip = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr);
h = ((unsigned long)ip[0]); h <<= 1;
h += ((unsigned long)ip[1]); h <<= 1;
h += ((unsigned long)ip[2]); h <<= 1;
h += ((unsigned long)ip[3]); h <<= 1;
h += ((unsigned long)ip[4]); h <<= 1;
h += ((unsigned long)ip[5]);
} break;
}
return (h & 0x3fff);
}
/**
* @return True if address family is non-zero
*/