diff options
Diffstat (limited to 'src/netaddress.h')
-rw-r--r-- | src/netaddress.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/netaddress.h b/src/netaddress.h index 0d04ab88fb..dd47ab5749 100644 --- a/src/netaddress.h +++ b/src/netaddress.h @@ -11,7 +11,9 @@ #include <attributes.h> #include <compat.h> +#include <crypto/siphash.h> #include <prevector.h> +#include <random.h> #include <serialize.h> #include <tinyformat.h> #include <util/strencodings.h> @@ -251,6 +253,7 @@ class CNetAddr } } + friend class CNetAddrHash; friend class CSubNet; private: @@ -464,6 +467,22 @@ class CNetAddr } }; +class CNetAddrHash +{ +public: + size_t operator()(const CNetAddr& a) const noexcept + { + CSipHasher hasher(m_salt_k0, m_salt_k1); + hasher.Write(a.m_net); + hasher.Write(a.m_addr.data(), a.m_addr.size()); + return static_cast<size_t>(hasher.Finalize()); + } + +private: + const uint64_t m_salt_k0 = GetRand(std::numeric_limits<uint64_t>::max()); + const uint64_t m_salt_k1 = GetRand(std::numeric_limits<uint64_t>::max()); +}; + class CSubNet { protected: |