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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| /* | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| #pragma once | ||
|
|
||
| #include <folly/small_vector.h> | ||
|
|
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| #include "velox/common/base/Status.h" | ||
| #include "velox/functions/prestosql/types/headers/IPAddressType.h" | ||
| #include "velox/type/SimpleFunctionApi.h" | ||
| #include "velox/type/Type.h" | ||
|
|
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| namespace facebook::velox { | ||
|
|
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| namespace ipaddress { | ||
| constexpr uint8_t kIPV4Bits = 32; | ||
| constexpr uint8_t kIPV6Bits = 128; | ||
| constexpr int kIPPrefixLengthIndex = 16; | ||
| constexpr int kIPPrefixBytes = 17; | ||
| constexpr auto kIpRowIndex = "ip"; | ||
| constexpr auto kIpPrefixRowIndex = "prefix"; | ||
|
|
||
| inline folly::Expected<int8_t, Status> tryIpPrefixLengthFromIPAddressType( | ||
| const int128_t& intIpAddr) { | ||
| folly::ByteArray16 addrBytes = {0}; | ||
| memcpy(&addrBytes, &intIpAddr, sizeof(intIpAddr)); | ||
| std::reverse(addrBytes.begin(), addrBytes.end()); | ||
| auto tryV6Addr = folly::IPAddressV6::tryFromBinary(addrBytes); | ||
| if (tryV6Addr.hasError()) { | ||
| return folly::makeUnexpected( | ||
| threadSkipErrorDetails() | ||
| ? Status::UserError() | ||
| : Status::UserError("Received invalid ip address")); | ||
| } | ||
|
|
||
| return tryV6Addr.value().isIPv4Mapped() ? ipaddress::kIPV4Bits | ||
| : ipaddress::kIPV6Bits; | ||
| } | ||
|
|
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| inline folly::Expected<std::pair<int128_t, int8_t>, Status> | ||
| tryParseIpPrefixString(folly::StringPiece ipprefixString) { | ||
| // Ensure '/' is present | ||
| if (ipprefixString.find('/') == std::string::npos) { | ||
| return folly::makeUnexpected( | ||
| threadSkipErrorDetails() | ||
| ? Status::UserError() | ||
| : Status::UserError( | ||
| "Cannot cast value to IPPREFIX: {}", ipprefixString)); | ||
| } | ||
|
|
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| auto tryCdirNetwork = folly::IPAddress::tryCreateNetwork( | ||
| ipprefixString, /*defaultCidr*/ -1, /*applyMask*/ false); | ||
|
|
||
| if (tryCdirNetwork.hasError()) { | ||
| return folly::makeUnexpected( | ||
| threadSkipErrorDetails() | ||
| ? Status::UserError() | ||
| : Status::UserError( | ||
| "Cannot cast value to IPPREFIX: {}", ipprefixString)); | ||
| } | ||
|
|
||
| auto [ip, prefix] = tryCdirNetwork.value(); | ||
| if (prefix > ((ip.isIPv4Mapped() || ip.isV4()) ? ipaddress::kIPV4Bits | ||
| : ipaddress::kIPV6Bits)) { | ||
| return folly::makeUnexpected( | ||
| threadSkipErrorDetails() | ||
| ? Status::UserError() | ||
| : Status::UserError( | ||
| "Cannot cast value to IPPREFIX: {}", ipprefixString)); | ||
| } | ||
|
|
||
| auto addrBytes = (ip.isIPv4Mapped() || ip.isV4()) | ||
| ? folly::IPAddress::createIPv4(ip).mask(prefix).createIPv6().toByteArray() | ||
| : folly::IPAddress::createIPv6(ip).mask(prefix).toByteArray(); | ||
|
|
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| std::reverse(addrBytes.begin(), addrBytes.end()); | ||
|
|
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| int128_t intAddr = 0; | ||
| static_assert(sizeof(intAddr) == ipaddress::kIPAddressBytes); | ||
| memcpy(&intAddr, &addrBytes, ipaddress::kIPAddressBytes); | ||
| return std::make_pair(intAddr, prefix); | ||
| } | ||
| }; // namespace ipaddress | ||
|
|
||
| class IPPrefixType : public RowType { | ||
| IPPrefixType() | ||
| : RowType( | ||
| {ipaddress::kIpRowIndex, ipaddress::kIpPrefixRowIndex}, | ||
| {HUGEINT(), TINYINT()}) {} | ||
|
|
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| public: | ||
| static const std::shared_ptr<const IPPrefixType>& get() { | ||
| static const std::shared_ptr<const IPPrefixType> instance{ | ||
| new IPPrefixType()}; | ||
|
|
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| return instance; | ||
| } | ||
|
|
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| bool equivalent(const Type& other) const override { | ||
| // Pointer comparison works since this type is a singleton. | ||
| return this == &other; | ||
| } | ||
|
|
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| const char* name() const override { | ||
| return "IPPREFIX"; | ||
| } | ||
|
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| std::string toString() const override { | ||
| return name(); | ||
| } | ||
|
|
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| folly::dynamic serialize() const override { | ||
| folly::dynamic obj = folly::dynamic::object; | ||
| obj["name"] = "Type"; | ||
| obj["type"] = name(); | ||
| return obj; | ||
| } | ||
|
|
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| const std::vector<TypeParameter>& parameters() const override { | ||
| static const std::vector<TypeParameter> kEmpty = {}; | ||
| return kEmpty; | ||
| } | ||
| }; | ||
|
|
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| FOLLY_ALWAYS_INLINE bool isIPPrefixType(const TypePtr& type) { | ||
| // Pointer comparison works since this type is a singleton. | ||
| return IPPrefixType::get() == type; | ||
| } | ||
|
|
||
| FOLLY_ALWAYS_INLINE bool isIPPrefixName(const std::string& name) { | ||
| return (name == IPPrefixType::get()->name()); | ||
| } | ||
|
|
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| FOLLY_ALWAYS_INLINE std::shared_ptr<const IPPrefixType> IPPREFIX() { | ||
| return IPPrefixType::get(); | ||
| } | ||
|
|
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| struct IPPrefixT { | ||
| using type = Row<int128_t, int8_t>; | ||
| static constexpr const char* typeName = "ipprefix"; | ||
| }; | ||
|
|
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| using IPPrefix = CustomType<IPPrefixT>; | ||
|
|
||
| void registerIPPrefixType(); | ||
|
|
||
| } // namespace facebook::velox |
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