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27 lines
1.0 KiB
C++
27 lines
1.0 KiB
C++
#pragma once
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#include <array>
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#include <base/types.h>
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namespace Poco { namespace Net { class IPAddress; }}
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namespace DB
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{
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/// Convert IP address to raw binary with IPv6 data (big endian). If it's an IPv4, map it to IPv6.
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/// Saves result into the first 16 bytes of `res`.
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void IPv6ToRawBinary(const Poco::Net::IPAddress & address, char * res);
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/// Convert IP address to 16-byte array with IPv6 data (big endian). If it's an IPv4, map it to IPv6.
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std::array<char, 16> IPv6ToBinary(const Poco::Net::IPAddress & address);
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/// Returns a reference to 16-byte array containing mask with first `prefix_len` bits set to `1` and `128 - prefix_len` to `0`.
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/// The reference is valid during all program execution time.
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/// Values of prefix_len greater than 128 interpreted as 128 exactly.
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const std::array<uint8_t, 16> & getCIDRMaskIPv6(UInt8 prefix_len);
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/// Check that address contained in CIDR range
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bool matchIPv4Subnet(UInt32 addr, UInt32 cidr_addr, UInt8 prefix);
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bool matchIPv6Subnet(const uint8_t * addr, const uint8_t * cidr_addr, UInt8 prefix);
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}
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