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Copy pathFunctionsCodingIP.cpp
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1755 lines (1465 loc) · 78.5 KB
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#include <functional>
#pragma clang diagnostic ignored "-Wreserved-identifier"
#include <Functions/FunctionsCodingIP.h>
#include <Columns/ColumnArray.h>
#include <Columns/ColumnConst.h>
#include <Columns/ColumnFixedString.h>
#include <Columns/ColumnString.h>
#include <Columns/ColumnTuple.h>
#include <Columns/ColumnNullable.h>
#include <Core/Settings.h>
#include <DataTypes/DataTypeFactory.h>
#include <DataTypes/DataTypeFixedString.h>
#include <DataTypes/DataTypeNullable.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypeTuple.h>
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeIPv4andIPv6.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/IFunction.h>
#include <Interpreters/Context.h>
#include <IO/WriteHelpers.h>
#include <Common/IPv6ToBinary.h>
#include <Common/formatIPv6.h>
#include <Common/typeid_cast.h>
#include <arpa/inet.h>
#include <array>
namespace DB
{
namespace Setting
{
extern const SettingsBool cast_ipv4_ipv6_default_on_conversion_error;
}
namespace ErrorCodes
{
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int ILLEGAL_COLUMN;
}
/** Encoding functions for network addresses:
*
* IPv6NumToString (num) - See below.
* IPv6StringToNum(string) - Convert, for example, '::1' to 1 and vice versa.
*/
class FunctionIPv6NumToString final : public IFunction
{
public:
static constexpr auto name = "IPv6NumToString";
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionIPv6NumToString>(); }
String getName() const override { return name; }
size_t getNumberOfArguments() const override { return 1; }
bool isInjective(const ColumnsWithTypeAndName &) const override { return true; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
const auto * arg_string = checkAndGetDataType<DataTypeFixedString>(arguments[0].get());
const auto * arg_ipv6 = checkAndGetDataType<DataTypeIPv6>(arguments[0].get());
if (!arg_ipv6 && !(arg_string && arg_string->getN() == IPV6_BINARY_LENGTH))
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of argument of function {}, expected IPv6 or FixedString({})",
arguments[0]->getName(), getName(), IPV6_BINARY_LENGTH
);
return std::make_shared<DataTypeString>();
}
DataTypePtr getReturnTypeForDefaultImplementationForDynamic() const override
{
return std::make_shared<DataTypeString>();
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
{
const ColumnPtr & column = arguments[0].column;
const auto * col_ipv6 = checkAndGetColumn<ColumnIPv6>(column.get());
const auto * col_string = checkAndGetColumn<ColumnFixedString>(column.get());
if (!col_ipv6 && !(col_string && col_string->getN() == IPV6_BINARY_LENGTH))
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal column {} of argument of function {}, expected IPv6 or FixedString({})",
arguments[0].name, getName(), IPV6_BINARY_LENGTH
);
auto col_res = ColumnString::create();
ColumnString::Chars & vec_res = col_res->getChars();
ColumnString::Offsets & offsets_res = col_res->getOffsets();
vec_res.resize(input_rows_count * IPV6_MAX_TEXT_LENGTH);
offsets_res.resize(input_rows_count);
auto * begin = reinterpret_cast<char *>(vec_res.data());
auto * pos = begin;
if (col_ipv6)
{
const auto & vec_in = col_ipv6->getData();
for (size_t i = 0; i < input_rows_count; ++i)
{
formatIPv6(reinterpret_cast<const unsigned char *>(&vec_in[i]), pos);
offsets_res[i] = pos - begin;
}
}
else
{
const auto & vec_in = col_string->getChars();
for (size_t i = 0; i < input_rows_count; ++i)
{
formatIPv6(reinterpret_cast<const unsigned char *>(&vec_in[i * IPV6_BINARY_LENGTH]), pos);
offsets_res[i] = pos - begin;
}
}
vec_res.resize(pos - begin);
return col_res;
}
};
class FunctionCutIPv6 final : public IFunction
{
public:
static constexpr auto name = "cutIPv6";
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionCutIPv6>(); }
String getName() const override { return name; }
size_t getNumberOfArguments() const override { return 3; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
if (!checkAndGetDataType<DataTypeIPv6>(arguments[0].get()))
{
const auto * ptr = checkAndGetDataType<DataTypeFixedString>(arguments[0].get());
if (!ptr || ptr->getN() != IPV6_BINARY_LENGTH)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of argument 1 of function {}, expected FixedString({})",
arguments[0]->getName(), getName(), toString(IPV6_BINARY_LENGTH));
}
if (!WhichDataType(arguments[1]).isUInt8())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument 2 of function {}",
arguments[1]->getName(), getName());
if (!WhichDataType(arguments[2]).isUInt8())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument 3 of function {}",
arguments[2]->getName(), getName());
return std::make_shared<DataTypeString>();
}
DataTypePtr getReturnTypeForDefaultImplementationForDynamic() const override
{
return std::make_shared<DataTypeString>();
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1, 2}; }
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
{
const auto & col_type_name = arguments[0];
const ColumnPtr & column = col_type_name.column;
const auto & col_ipv6_zeroed_tail_bytes_type = arguments[1];
const auto & col_ipv6_zeroed_tail_bytes = col_ipv6_zeroed_tail_bytes_type.column;
const auto & col_ipv4_zeroed_tail_bytes_type = arguments[2];
const auto & col_ipv4_zeroed_tail_bytes = col_ipv4_zeroed_tail_bytes_type.column;
const auto * col_in_str = checkAndGetColumn<ColumnFixedString>(column.get());
const auto * col_in_ip = checkAndGetColumn<ColumnIPv6>(column.get());
if (!col_in_str && !col_in_ip)
throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of argument of function {}",
arguments[0].column->getName(), getName());
if (col_in_str && col_in_str->getN() != IPV6_BINARY_LENGTH)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of column {} argument of function {}, expected FixedString({})",
col_type_name.type->getName(), col_in_str->getName(),
getName(), toString(IPV6_BINARY_LENGTH));
const auto * ipv6_zeroed_tail_bytes = checkAndGetColumnConst<ColumnVector<UInt8>>(col_ipv6_zeroed_tail_bytes.get());
if (!ipv6_zeroed_tail_bytes)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument 2 of function {}",
col_ipv6_zeroed_tail_bytes_type.type->getName(), getName());
UInt8 ipv6_zeroed_tail_bytes_count = ipv6_zeroed_tail_bytes->getValue<UInt8>();
if (ipv6_zeroed_tail_bytes_count > IPV6_BINARY_LENGTH)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal value for argument 2 {} of function {}",
col_ipv6_zeroed_tail_bytes_type.type->getName(), getName());
const auto * ipv4_zeroed_tail_bytes = checkAndGetColumnConst<ColumnVector<UInt8>>(col_ipv4_zeroed_tail_bytes.get());
if (!ipv4_zeroed_tail_bytes)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument 3 of function {}",
col_ipv4_zeroed_tail_bytes_type.type->getName(), getName());
UInt8 ipv4_zeroed_tail_bytes_count = ipv4_zeroed_tail_bytes->getValue<UInt8>();
if (ipv4_zeroed_tail_bytes_count > IPV6_BINARY_LENGTH)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal value for argument 3 {} of function {}",
col_ipv4_zeroed_tail_bytes_type.type->getName(), getName());
auto col_res = ColumnString::create();
ColumnString::Chars & vec_res = col_res->getChars();
ColumnString::Offsets & offsets_res = col_res->getOffsets();
vec_res.resize(input_rows_count * IPV6_MAX_TEXT_LENGTH);
offsets_res.resize(input_rows_count);
auto * begin = reinterpret_cast<char *>(vec_res.data());
auto * pos = begin;
if (col_in_str)
{
const auto & vec_in = col_in_str->getChars();
for (size_t offset = 0, i = 0; i < input_rows_count; offset += IPV6_BINARY_LENGTH, ++i)
{
const auto * address = &vec_in[offset];
UInt8 zeroed_tail_bytes_count = isIPv4Mapped(address) ? ipv4_zeroed_tail_bytes_count : ipv6_zeroed_tail_bytes_count;
cutAddress(reinterpret_cast<const unsigned char *>(address), pos, zeroed_tail_bytes_count);
offsets_res[i] = pos - begin;
}
}
else
{
const auto & vec_in = col_in_ip->getData();
for (size_t i = 0; i < input_rows_count; ++i)
{
const auto * address = reinterpret_cast<const UInt8 *>(&vec_in[i]);
UInt8 zeroed_tail_bytes_count = isIPv4Mapped(address) ? ipv4_zeroed_tail_bytes_count : ipv6_zeroed_tail_bytes_count;
cutAddress(reinterpret_cast<const unsigned char *>(address), pos, zeroed_tail_bytes_count);
offsets_res[i] = pos - begin;
}
}
vec_res.resize(pos - begin);
return col_res;
}
private:
static bool isIPv4Mapped(const UInt8 * address)
{
return (unalignedLoadLittleEndian<UInt64>(address) == 0) &&
((unalignedLoadLittleEndian<UInt64>(address + 8) & 0x00000000FFFFFFFFull) == 0x00000000FFFF0000ull);
}
static void cutAddress(const unsigned char * address, char *& dst, UInt8 zeroed_tail_bytes_count)
{
formatIPv6(address, dst, zeroed_tail_bytes_count);
}
};
template <IPStringToNumExceptionMode exception_mode>
class FunctionIPv6StringToNum final : public IFunction
{
public:
static constexpr auto name = exception_mode == IPStringToNumExceptionMode::Throw
? "IPv6StringToNum"
: (exception_mode == IPStringToNumExceptionMode::Default ? "IPv6StringToNumOrDefault" : "IPv6StringToNumOrNull");
static FunctionPtr create(ContextPtr context) { return std::make_shared<FunctionIPv6StringToNum>(context); }
explicit FunctionIPv6StringToNum(ContextPtr context)
: cast_ipv4_ipv6_default_on_conversion_error(context->getSettingsRef()[Setting::cast_ipv4_ipv6_default_on_conversion_error])
{
}
String getName() const override { return name; }
size_t getNumberOfArguments() const override { return 1; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
bool useDefaultImplementationForConstants() const override { return true; }
bool useDefaultImplementationForNulls() const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
if (!isStringOrFixedString(removeNullable(arguments[0])))
{
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument of function {}", arguments[0]->getName(), getName());
}
auto result_type = std::make_shared<DataTypeFixedString>(IPV6_BINARY_LENGTH);
if constexpr (exception_mode == IPStringToNumExceptionMode::Null)
{
return makeNullable(result_type);
}
return arguments[0]->isNullable() ? makeNullable(result_type) : result_type;
}
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const override
{
ColumnPtr column = arguments[0].column;
ColumnPtr null_map_column;
const NullMap * null_map = nullptr;
if (column->isNullable())
{
const auto * column_nullable = assert_cast<const ColumnNullable *>(column.get());
column = column_nullable->getNestedColumnPtr();
null_map_column = column_nullable->getNullMapColumnPtr();
null_map = &column_nullable->getNullMapData();
}
if constexpr (exception_mode == IPStringToNumExceptionMode::Throw)
{
if (cast_ipv4_ipv6_default_on_conversion_error)
{
auto result = convertToIPv6<IPStringToNumExceptionMode::Default, ColumnFixedString>(column, null_map);
if (null_map && !result->isNullable())
return ColumnNullable::create(result, null_map_column);
return result;
}
}
auto result = convertToIPv6<exception_mode, ColumnFixedString>(column, null_map);
if (null_map && !result->isNullable())
return ColumnNullable::create(IColumn::mutate(result), IColumn::mutate(null_map_column));
return result;
}
private:
bool cast_ipv4_ipv6_default_on_conversion_error = false;
};
/** If mask_tail_octets > 0, the last specified number of octets will be filled with "xxx".
*/
template <size_t mask_tail_octets, typename Name>
class FunctionIPv4NumToString final : public IFunction
{
private:
template <typename ArgType>
ColumnPtr executeTyped(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const
{
using ColumnType = ColumnVector<ArgType>;
const ColumnPtr & column = arguments[0].column;
if (const ColumnType * col = typeid_cast<const ColumnType *>(column.get()))
{
const typename ColumnType::Container & vec_in = col->getData();
auto col_res = ColumnString::create();
ColumnString::Chars & vec_res = col_res->getChars();
ColumnString::Offsets & offsets_res = col_res->getOffsets();
vec_res.resize(input_rows_count * IPV4_MAX_TEXT_LENGTH); /// the longest value is: 255.255.255.255
offsets_res.resize(input_rows_count);
char * begin = reinterpret_cast<char *>(vec_res.data());
char * pos = begin;
for (size_t i = 0; i < input_rows_count; ++i)
{
formatIPv4(reinterpret_cast<const unsigned char*>(&vec_in[i]), sizeof(ArgType), pos, mask_tail_octets, "xxx");
offsets_res[i] = pos - begin;
}
vec_res.resize(pos - begin);
return col_res;
}
throw Exception(
ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of argument of function {}", arguments[0].column->getName(), getName());
}
public:
static constexpr auto name = Name::name;
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionIPv4NumToString<mask_tail_octets, Name>>(); }
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 1; }
bool isInjective(const ColumnsWithTypeAndName &) const override { return mask_tail_octets == 0; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
WhichDataType arg_type(arguments[0]);
if (!(arg_type.isIPv4() || arg_type.isUInt8() || arg_type.isUInt16() || arg_type.isUInt32()))
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of first argument of function {}, expected IPv4 or UInt8 or UInt16 or UInt32",
arguments[0]->getName(), getName()
);
return std::make_shared<DataTypeString>();
}
DataTypePtr getReturnTypeForDefaultImplementationForDynamic() const override
{
return std::make_shared<DataTypeString>();
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & ret_type, size_t input_rows_count) const override
{
switch (arguments[0].type->getTypeId())
{
case TypeIndex::IPv4: return executeTyped<IPv4>(arguments, ret_type, input_rows_count);
case TypeIndex::UInt8: return executeTyped<UInt8>(arguments, ret_type, input_rows_count);
case TypeIndex::UInt16: return executeTyped<UInt16>(arguments, ret_type, input_rows_count);
case TypeIndex::UInt32: return executeTyped<UInt32>(arguments, ret_type, input_rows_count);
default: break;
}
throw Exception(
ErrorCodes::ILLEGAL_COLUMN,
"Illegal column {} of argument of function {}, expected IPv4 or UInt8 or UInt16 or UInt32",
arguments[0].column->getName(), getName()
);
}
};
template <IPStringToNumExceptionMode exception_mode>
class FunctionIPv4StringToNum final : public IFunction
{
public:
static constexpr auto name = exception_mode == IPStringToNumExceptionMode::Throw
? "IPv4StringToNum"
: (exception_mode == IPStringToNumExceptionMode::Default ? "IPv4StringToNumOrDefault" : "IPv4StringToNumOrNull");
static FunctionPtr create(ContextPtr context) { return std::make_shared<FunctionIPv4StringToNum>(context); }
explicit FunctionIPv4StringToNum(ContextPtr context)
: cast_ipv4_ipv6_default_on_conversion_error(context->getSettingsRef()[Setting::cast_ipv4_ipv6_default_on_conversion_error])
{
}
String getName() const override { return name; }
size_t getNumberOfArguments() const override { return 1; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
bool useDefaultImplementationForConstants() const override { return true; }
bool useDefaultImplementationForNulls() const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
if (!isString(removeNullable(arguments[0])))
{
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument of function {}", arguments[0]->getName(), getName());
}
auto result_type = std::make_shared<DataTypeUInt32>();
if constexpr (exception_mode == IPStringToNumExceptionMode::Null)
{
return makeNullable(result_type);
}
return arguments[0]->isNullable() ? makeNullable(result_type) : result_type;
}
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const override
{
ColumnPtr column = arguments[0].column;
ColumnPtr null_map_column;
const NullMap * null_map = nullptr;
if (column->isNullable())
{
const auto * column_nullable = assert_cast<const ColumnNullable *>(column.get());
column = column_nullable->getNestedColumnPtr();
null_map_column = column_nullable->getNullMapColumnPtr();
null_map = &column_nullable->getNullMapData();
}
if constexpr (exception_mode == IPStringToNumExceptionMode::Throw)
{
if (cast_ipv4_ipv6_default_on_conversion_error)
{
auto result = convertToIPv4<IPStringToNumExceptionMode::Default, ColumnUInt32>(column, null_map);
if (null_map && !result->isNullable())
return ColumnNullable::create(result, null_map_column);
return result;
}
}
auto result = convertToIPv4<exception_mode, ColumnUInt32>(column, null_map);
if (null_map && !result->isNullable())
return ColumnNullable::create(IColumn::mutate(result), IColumn::mutate(null_map_column));
return result;
}
private:
bool cast_ipv4_ipv6_default_on_conversion_error = false;
};
class FunctionIPv4ToIPv6 final : public IFunction
{
public:
static constexpr auto name = "IPv4ToIPv6";
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionIPv4ToIPv6>(); }
String getName() const override { return name; }
size_t getNumberOfArguments() const override { return 1; }
bool isInjective(const ColumnsWithTypeAndName &) const override { return true; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
/// for backward compatibility IPv4ToIPv6 is overloaded, and result type depends on type of argument -
/// if it is UInt32 (presenting IPv4) then result is FixedString(16), if IPv4 - result is IPv6
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
const auto * dt_uint32 = checkAndGetDataType<DataTypeUInt32>(arguments[0].get());
const auto * dt_ipv4 = checkAndGetDataType<DataTypeIPv4>(arguments[0].get());
if (!dt_uint32 && !dt_ipv4)
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of argument of function {}", arguments[0]->getName(), getName()
);
if (dt_uint32)
return std::make_shared<DataTypeFixedString>(16);
return std::make_shared<DataTypeIPv6>();
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
{
const auto & col_type_name = arguments[0];
const ColumnPtr & column = col_type_name.column;
if (const auto * col_in = checkAndGetColumn<ColumnIPv4>(&*column))
{
auto col_res = ColumnIPv6::create();
auto & vec_res = col_res->getData();
vec_res.resize(input_rows_count);
const auto & vec_in = col_in->getData();
for (size_t i = 0; i < input_rows_count; ++i)
mapIPv4ToIPv6(vec_in[i], reinterpret_cast<UInt8 *>(&vec_res[i].toUnderType()));
return col_res;
}
if (const auto * col_in = checkAndGetColumn<ColumnUInt32>(&*column))
{
auto col_res = ColumnFixedString::create(IPV6_BINARY_LENGTH);
auto & vec_res = col_res->getChars();
vec_res.resize(input_rows_count * IPV6_BINARY_LENGTH);
const auto & vec_in = col_in->getData();
for (size_t out_offset = 0, i = 0; out_offset < vec_res.size(); out_offset += IPV6_BINARY_LENGTH, ++i)
mapIPv4ToIPv6(vec_in[i], &vec_res[out_offset]);
return col_res;
}
throw Exception(
ErrorCodes::ILLEGAL_COLUMN,
"Illegal column {} of argument of function {}", arguments[0].column->getName(), getName()
);
}
private:
static void mapIPv4ToIPv6(UInt32 in, UInt8 * buf)
{
unalignedStore<UInt64>(buf, 0);
if constexpr (std::endian::native == std::endian::little)
unalignedStoreLittleEndian<UInt64>(buf + 8, 0x00000000FFFF0000ull | (static_cast<UInt64>(ntohl(in)) << 32));
else
unalignedStoreLittleEndian<UInt64>(buf + 8, 0x00000000FFFF0000ull | (static_cast<UInt64>(std::byteswap(in)) << 32));
}
};
class FunctionMACNumToString final : public IFunction
{
public:
static constexpr auto name = "MACNumToString";
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionMACNumToString>(); }
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 1; }
/// Not injective: only the low 6 bytes of the argument are formatted, the higher two bytes are ignored,
/// so 2^64 possible inputs are mapped onto 2^48 possible outputs.
bool isInjective(const ColumnsWithTypeAndName &) const override { return false; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
if (!WhichDataType(arguments[0]).isUInt64())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument of function {}, expected UInt64",
arguments[0]->getName(), getName());
return std::make_shared<DataTypeString>();
}
DataTypePtr getReturnTypeForDefaultImplementationForDynamic() const override
{
return std::make_shared<DataTypeString>();
}
static void formatMAC(UInt64 mac, UInt8 * out)
{
/// MAC address is represented in UInt64 in natural order (so, MAC addresses are compared in same order as UInt64).
/// Higher two bytes in UInt64 are just ignored.
writeHexByteUppercase(static_cast<UInt8>(mac >> 40), &out[0]);
out[2] = ':';
writeHexByteUppercase(static_cast<UInt8>(mac >> 32), &out[3]);
out[5] = ':';
writeHexByteUppercase(static_cast<UInt8>(mac >> 24), &out[6]);
out[8] = ':';
writeHexByteUppercase(static_cast<UInt8>(mac >> 16), &out[9]);
out[11] = ':';
writeHexByteUppercase(static_cast<UInt8>(mac >> 8), &out[12]);
out[14] = ':';
writeHexByteUppercase(static_cast<UInt8>(mac), &out[15]);
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const override
{
const ColumnPtr & column = arguments[0].column;
if (const ColumnUInt64 * col = typeid_cast<const ColumnUInt64 *>(column.get()))
{
const ColumnUInt64::Container & vec_in = col->getData();
auto col_res = ColumnString::create();
ColumnString::Chars & vec_res = col_res->getChars();
ColumnString::Offsets & offsets_res = col_res->getOffsets();
vec_res.resize(vec_in.size() * 17); /// the value is: xx:xx:xx:xx:xx:xx
offsets_res.resize(vec_in.size());
size_t current_offset = 0;
for (size_t i = 0; i < vec_in.size(); ++i)
{
formatMAC(vec_in[i], &vec_res[current_offset]);
current_offset += 17;
offsets_res[i] = current_offset;
}
return col_res;
}
throw Exception(
ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of argument of function {}", arguments[0].column->getName(), getName());
}
};
struct ParseMACImpl
{
static constexpr size_t min_string_size = 17;
static constexpr size_t max_string_size = 17;
/** Example: 01:02:03:04:05:06.
* There could be any separators instead of : and them are just ignored.
* The order of resulting integers are correspond to the order of MAC address.
* If there are any chars other than valid hex digits for bytes, the behaviour is implementation specific.
*/
static UInt64 parse(const char * pos)
{
return (static_cast<UInt64>(unhex(pos[0])) << 44)
| (static_cast<UInt64>(unhex(pos[1])) << 40)
| (static_cast<UInt64>(unhex(pos[3])) << 36)
| (static_cast<UInt64>(unhex(pos[4])) << 32)
| (static_cast<UInt64>(unhex(pos[6])) << 28)
| (static_cast<UInt64>(unhex(pos[7])) << 24)
| (static_cast<UInt64>(unhex(pos[9])) << 20)
| (static_cast<UInt64>(unhex(pos[10])) << 16)
| (static_cast<UInt64>(unhex(pos[12])) << 12)
| (static_cast<UInt64>(unhex(pos[13])) << 8)
| (static_cast<UInt64>(unhex(pos[15])) << 4)
| (static_cast<UInt64>(unhex(pos[16])));
}
static constexpr auto name = "MACStringToNum";
};
struct ParseOUIImpl
{
static constexpr size_t min_string_size = 8;
static constexpr size_t max_string_size = 17;
/** OUI is the first three bytes of MAC address.
* Example: 01:02:03.
*/
static UInt64 parse(const char * pos)
{
return (static_cast<UInt64>(unhex(pos[0])) << 20)
| (static_cast<UInt64>(unhex(pos[1])) << 16)
| (static_cast<UInt64>(unhex(pos[3])) << 12)
| (static_cast<UInt64>(unhex(pos[4])) << 8)
| (static_cast<UInt64>(unhex(pos[6])) << 4)
| (static_cast<UInt64>(unhex(pos[7])));
}
static constexpr auto name = "MACStringToOUI";
};
template <typename Impl>
class FunctionMACStringTo final : public IFunction
{
public:
static constexpr auto name = Impl::name;
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionMACStringTo<Impl>>(); }
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 1; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
if (!isString(arguments[0]))
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument of function {}",
arguments[0]->getName(), getName());
return std::make_shared<DataTypeUInt64>();
}
DataTypePtr getReturnTypeForDefaultImplementationForDynamic() const override
{
return std::make_shared<DataTypeUInt64>();
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
{
const ColumnPtr & column = arguments[0].column;
if (const ColumnString * col = checkAndGetColumn<ColumnString>(column.get()))
{
auto col_res = ColumnUInt64::create();
ColumnUInt64::Container & vec_res = col_res->getData();
vec_res.resize(input_rows_count);
const ColumnString::Chars & vec_src = col->getChars();
const ColumnString::Offsets & offsets_src = col->getOffsets();
size_t prev_offset = 0;
for (size_t i = 0; i < input_rows_count; ++i)
{
size_t current_offset = offsets_src[i];
size_t string_size = current_offset - prev_offset;
if (string_size >= Impl::min_string_size && string_size <= Impl::max_string_size)
vec_res[i] = Impl::parse(reinterpret_cast<const char *>(&vec_src[prev_offset]));
else
vec_res[i] = 0;
prev_offset = current_offset;
}
return col_res;
}
throw Exception(
ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of argument of function {}", arguments[0].column->getName(), getName());
}
};
class FunctionIPv6CIDRToRange final : public IFunction
{
private:
#if defined(__SSE2__)
#include <emmintrin.h>
static void applyCIDRMask(const char * __restrict src, char * __restrict dst_lower, char * __restrict dst_upper, UInt8 bits_to_keep)
{
__m128i mask = _mm_loadu_si128(reinterpret_cast<const __m128i *>(getCIDRMaskIPv6(bits_to_keep).data()));
__m128i lower = _mm_and_si128(_mm_loadu_si128(reinterpret_cast<const __m128i *>(src)), mask);
_mm_storeu_si128(reinterpret_cast<__m128i *>(dst_lower), lower);
__m128i inv_mask = _mm_xor_si128(mask, _mm_cmpeq_epi32(_mm_setzero_si128(), _mm_setzero_si128()));
__m128i upper = _mm_or_si128(lower, inv_mask);
_mm_storeu_si128(reinterpret_cast<__m128i *>(dst_upper), upper);
}
#else
/// NOTE IPv6 is stored in memory in big endian format that makes some difficulties.
static void applyCIDRMask(const char * __restrict src, char * __restrict dst_lower, char * __restrict dst_upper, UInt8 bits_to_keep)
{
const auto & mask = getCIDRMaskIPv6(bits_to_keep);
for (size_t i = 0; i < 16; ++i)
{
dst_lower[i] = src[i] & mask[i];
dst_upper[i] = static_cast<char>(dst_lower[i] | ~mask[i]);
}
}
#endif
public:
static constexpr auto name = "IPv6CIDRToRange";
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionIPv6CIDRToRange>(); }
String getName() const override { return name; }
size_t getNumberOfArguments() const override { return 2; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
const auto * ipv6 = checkAndGetDataType<DataTypeIPv6>(arguments[0].get());
const auto * str = checkAndGetDataType<DataTypeFixedString>(arguments[0].get());
if (!ipv6 && !(str && str->getN() == IPV6_BINARY_LENGTH))
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of first argument of function {}, expected IPv6 or FixedString({})",
arguments[0]->getName(), getName(), IPV6_BINARY_LENGTH
);
const DataTypePtr & second_argument = arguments[1];
if (!isUInt8(second_argument))
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of second argument of function {}, expected UInt8",
second_argument->getName(), getName()
);
DataTypePtr element = std::make_shared<DataTypeIPv6>();
return std::make_shared<DataTypeTuple>(DataTypes{element, element});
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
{
const auto & col_type_name_cidr = arguments[1];
const ColumnPtr & column_cidr = col_type_name_cidr.column;
const auto * col_const_cidr_in = checkAndGetColumnConst<ColumnUInt8>(column_cidr.get());
const auto * col_cidr_in = checkAndGetColumn<ColumnUInt8>(column_cidr.get());
if (!col_const_cidr_in && !col_cidr_in)
throw Exception(
ErrorCodes::ILLEGAL_COLUMN,
"Illegal column {} of argument of function {}",
arguments[1].column->getName(), getName()
);
const auto & col_type_name_ip = arguments[0];
const ColumnPtr & column_ip = col_type_name_ip.column;
const auto * col_const_ip_in = checkAndGetColumnConst<ColumnIPv6>(column_ip.get());
const auto * col_ip_in = checkAndGetColumn<ColumnIPv6>(column_ip.get());
const auto * col_const_str_in = checkAndGetColumnConst<ColumnFixedString>(column_ip.get());
const auto * col_str_in = checkAndGetColumn<ColumnFixedString>(column_ip.get());
std::function<const char *(size_t)> get_ip_data;
if (col_const_ip_in)
get_ip_data = [col_const_ip_in](size_t) { return col_const_ip_in->getDataAt(0).data(); };
else if (col_const_str_in)
get_ip_data = [col_const_str_in](size_t) { return col_const_str_in->getDataAt(0).data(); };
else if (col_ip_in)
get_ip_data = [col_ip_in](size_t i) { return reinterpret_cast<const char *>(&col_ip_in->getData()[i]); };
else if (col_str_in)
get_ip_data = [col_str_in](size_t i) { return reinterpret_cast<const char *>(&col_str_in->getChars().data()[i * IPV6_BINARY_LENGTH]); };
else
throw Exception(
ErrorCodes::ILLEGAL_COLUMN,
"Illegal column {} of argument of function {}",
arguments[0].column->getName(), getName()
);
auto col_res_lower_range = ColumnIPv6::create();
auto col_res_upper_range = ColumnIPv6::create();
auto & vec_res_lower_range = col_res_lower_range->getData();
vec_res_lower_range.resize(input_rows_count);
auto & vec_res_upper_range = col_res_upper_range->getData();
vec_res_upper_range.resize(input_rows_count);
static constexpr UInt8 max_cidr_mask = IPV6_BINARY_LENGTH * 8;
for (size_t i = 0; i < input_rows_count; ++i)
{
UInt8 cidr = col_const_cidr_in
? col_const_cidr_in->getValue<UInt8>()
: col_cidr_in->getData()[i];
cidr = std::min(cidr, max_cidr_mask);
applyCIDRMask(get_ip_data(i), reinterpret_cast<char *>(&vec_res_lower_range[i]), reinterpret_cast<char *>(&vec_res_upper_range[i]), cidr);
}
return ColumnTuple::create(Columns{std::move(col_res_lower_range), std::move(col_res_upper_range)});
}
};
class FunctionIPv4CIDRToRange final : public IFunction
{
private:
static std::pair<UInt32, UInt32> applyCIDRMask(UInt32 src, UInt8 bits_to_keep)
{
if (bits_to_keep >= 8 * sizeof(UInt32))
return { src, src };
if (bits_to_keep == 0)
return { static_cast<UInt32>(0), static_cast<UInt32>(-1) };
UInt32 mask = static_cast<UInt32>(-1) << (8 * sizeof(UInt32) - bits_to_keep);
UInt32 lower = src & mask;
UInt32 upper = lower | ~mask;
return { lower, upper };
}
template <typename ArgType>
ColumnPtr executeTyped(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const
{
using ColumnType = ColumnVector<ArgType>;
const auto & col_type_name_ip = arguments[0];
const ColumnPtr & column_ip = col_type_name_ip.column;
const auto * col_const_ip_in = checkAndGetColumnConst<ColumnType>(column_ip.get());
const auto * col_ip_in = checkAndGetColumn<ColumnType>(column_ip.get());
const auto & col_type_name_cidr = arguments[1];
const ColumnPtr & column_cidr = col_type_name_cidr.column;
const auto * col_const_cidr_in = checkAndGetColumnConst<ColumnUInt8>(column_cidr.get());
const auto * col_cidr_in = checkAndGetColumn<ColumnUInt8>(column_cidr.get());
auto col_res_lower_range = ColumnIPv4::create();
auto col_res_upper_range = ColumnIPv4::create();
auto & vec_res_lower_range = col_res_lower_range->getData();
vec_res_lower_range.resize(input_rows_count);
auto & vec_res_upper_range = col_res_upper_range->getData();
vec_res_upper_range.resize(input_rows_count);
for (size_t i = 0; i < input_rows_count; ++i)
{
ArgType ip = col_const_ip_in
? col_const_ip_in->template getValue<ArgType>()
: col_ip_in->getData()[i];
UInt8 cidr = col_const_cidr_in
? col_const_cidr_in->getValue<UInt8>()
: col_cidr_in->getData()[i];
std::tie(vec_res_lower_range[i], vec_res_upper_range[i]) = applyCIDRMask(ip, cidr);
}
return ColumnTuple::create(Columns{std::move(col_res_lower_range), std::move(col_res_upper_range)});
}
public:
static constexpr auto name = "IPv4CIDRToRange";
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionIPv4CIDRToRange>(); }