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network: IPv6Address optimizations

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This commit is contained in:
Tommaso Pecorella
2021-01-16 04:20:38 +00:00
parent a436ba44e4
commit 314bc4f691
1 changed files with 8 additions and 13 deletions
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21
src/network/utils/ipv6-address.cc
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@@ -734,8 +734,8 @@ bool Ipv6Address::IsLinkLocalMulticast () const
bool Ipv6Address::IsIpv4MappedAddress () const
{
NS_LOG_FUNCTION (this);
uint8_t v4MappedPrefix[12] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff };
static uint8_t v4MappedPrefix[12] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff };
if (memcmp(m_address, v4MappedPrefix, sizeof(v4MappedPrefix)) == 0)
{
return (true);
@@ -766,14 +766,9 @@ Ipv6Address Ipv6Address::CombinePrefix (Ipv6Prefix const& prefix) const
bool Ipv6Address::IsSolicitedMulticast () const
{
NS_LOG_FUNCTION (this);
uint8_t buf[16];
Serialize (buf);
if (buf[0] == 0xff &&
buf[1] == 0x02 &&
buf[11] == 0x01 &&
buf[12] == 0xff)
static Ipv6Address documentation ("ff02::1:ff00:0");
if (CombinePrefix (Ipv6Prefix (104)) == documentation)
{
return true;
}
@@ -810,8 +805,8 @@ bool Ipv6Address::IsAny () const
bool Ipv6Address::IsDocumentation () const
{
NS_LOG_FUNCTION (this);
Ipv6Address documentation ("2001:db8::0");
if (((Ipv6Address*)this)->CombinePrefix (Ipv6Prefix (32)) == documentation)
static Ipv6Address documentation ("2001:db8::0");
if (CombinePrefix (Ipv6Prefix (32)) == documentation)
{
return true;
}
@@ -922,8 +917,8 @@ void Ipv6Address::GetBytes (uint8_t buf[16]) const
bool Ipv6Address::IsLinkLocal () const
{
NS_LOG_FUNCTION (this);
Ipv6Address linkLocal ("fe80::0");
if (!IsMulticast () && ((Ipv6Address*)this)->CombinePrefix (Ipv6Prefix (64)) == linkLocal)
static Ipv6Address linkLocal ("fe80::0");
if (CombinePrefix (Ipv6Prefix (64)) == linkLocal)
{
return true;
}