12 KiB
| toc_priority | toc_title |
|---|---|
| 55 | IP Addresses |
Functions for Working with IPv4 and IPv6 Addresses
IPv4NumToString(num)
Takes a UInt32 number. Interprets it as an IPv4 address in big endian. Returns a string containing the corresponding IPv4 address in the format A.B.C.d (dot-separated numbers in decimal form).
IPv4StringToNum(s)
The reverse function of IPv4NumToString. If the IPv4 address has an invalid format, it returns 0.
IPv4NumToStringClassC(num)
Similar to IPv4NumToString, but using xxx instead of the last octet.
Example:
SELECT
IPv4NumToStringClassC(ClientIP) AS k,
count() AS c
FROM test.hits
GROUP BY k
ORDER BY c DESC
LIMIT 10
┌─k──────────────┬─────c─┐
│ 83.149.9.xxx │ 26238 │
│ 217.118.81.xxx │ 26074 │
│ 213.87.129.xxx │ 25481 │
│ 83.149.8.xxx │ 24984 │
│ 217.118.83.xxx │ 22797 │
│ 78.25.120.xxx │ 22354 │
│ 213.87.131.xxx │ 21285 │
│ 78.25.121.xxx │ 20887 │
│ 188.162.65.xxx │ 19694 │
│ 83.149.48.xxx │ 17406 │
└────────────────┴───────┘
Since using ‘xxx’ is highly unusual, this may be changed in the future. We recommend that you don’t rely on the exact format of this fragment.
IPv6NumToString(x)
Accepts a FixedString(16) value containing the IPv6 address in binary format. Returns a string containing this address in text format. IPv6-mapped IPv4 addresses are output in the format ::ffff:111.222.33.44. Examples:
SELECT IPv6NumToString(toFixedString(unhex('2A0206B8000000000000000000000011'), 16)) AS addr
┌─addr─────────┐
│ 2a02:6b8::11 │
└──────────────┘
SELECT
IPv6NumToString(ClientIP6 AS k),
count() AS c
FROM hits_all
WHERE EventDate = today() AND substring(ClientIP6, 1, 12) != unhex('00000000000000000000FFFF')
GROUP BY k
ORDER BY c DESC
LIMIT 10
┌─IPv6NumToString(ClientIP6)──────────────┬─────c─┐
│ 2a02:2168:aaa:bbbb::2 │ 24695 │
│ 2a02:2698:abcd:abcd:abcd:abcd:8888:5555 │ 22408 │
│ 2a02:6b8:0:fff::ff │ 16389 │
│ 2a01:4f8:111:6666::2 │ 16016 │
│ 2a02:2168:888:222::1 │ 15896 │
│ 2a01:7e00::ffff:ffff:ffff:222 │ 14774 │
│ 2a02:8109:eee:ee:eeee:eeee:eeee:eeee │ 14443 │
│ 2a02:810b:8888:888:8888:8888:8888:8888 │ 14345 │
│ 2a02:6b8:0:444:4444:4444:4444:4444 │ 14279 │
│ 2a01:7e00::ffff:ffff:ffff:ffff │ 13880 │
└─────────────────────────────────────────┴───────┘
SELECT
IPv6NumToString(ClientIP6 AS k),
count() AS c
FROM hits_all
WHERE EventDate = today()
GROUP BY k
ORDER BY c DESC
LIMIT 10
┌─IPv6NumToString(ClientIP6)─┬──────c─┐
│ ::ffff:94.26.111.111 │ 747440 │
│ ::ffff:37.143.222.4 │ 529483 │
│ ::ffff:5.166.111.99 │ 317707 │
│ ::ffff:46.38.11.77 │ 263086 │
│ ::ffff:79.105.111.111 │ 186611 │
│ ::ffff:93.92.111.88 │ 176773 │
│ ::ffff:84.53.111.33 │ 158709 │
│ ::ffff:217.118.11.22 │ 154004 │
│ ::ffff:217.118.11.33 │ 148449 │
│ ::ffff:217.118.11.44 │ 148243 │
└────────────────────────────┴────────┘
IPv6StringToNum(s)
The reverse function of IPv6NumToString. If the IPv6 address has an invalid format, it returns a string of null bytes. If the IP address is a valid IPv4 address then the IPv6 equivalent of the IPv4 address is returned. HEX can be uppercase or lowercase.
SELECT cutIPv6(IPv6StringToNum('127.0.0.1'), 0, 0);
┌─cutIPv6(IPv6StringToNum('127.0.0.1'), 0, 0)─┐
│ ::ffff:127.0.0.1 │
└─────────────────────────────────────────────┘
IPv4ToIPv6(x)
Takes a UInt32 number. Interprets it as an IPv4 address in big endian. Returns a FixedString(16) value containing the IPv6 address in binary format. Examples:
SELECT IPv6NumToString(IPv4ToIPv6(IPv4StringToNum('192.168.0.1'))) AS addr
┌─addr───────────────┐
│ ::ffff:192.168.0.1 │
└────────────────────┘
cutIPv6(x, bytesToCutForIPv6, bytesToCutForIPv4)
Accepts a FixedString(16) value containing the IPv6 address in binary format. Returns a string containing the address of the specified number of bytes removed in text format. For example:
WITH
IPv6StringToNum('2001:0DB8:AC10:FE01:FEED:BABE:CAFE:F00D') AS ipv6,
IPv4ToIPv6(IPv4StringToNum('192.168.0.1')) AS ipv4
SELECT
cutIPv6(ipv6, 2, 0),
cutIPv6(ipv4, 0, 2)
┌─cutIPv6(ipv6, 2, 0)─────────────────┬─cutIPv6(ipv4, 0, 2)─┐
│ 2001:db8:ac10:fe01:feed:babe:cafe:0 │ ::ffff:192.168.0.0 │
└─────────────────────────────────────┴─────────────────────┘
IPv4CIDRToRange(ipv4, Cidr),
Accepts an IPv4 and an UInt8 value containing the CIDR. Return a tuple with two IPv4 containing the lower range and the higher range of the subnet.
SELECT IPv4CIDRToRange(toIPv4('192.168.5.2'), 16)
┌─IPv4CIDRToRange(toIPv4('192.168.5.2'), 16)─┐
│ ('192.168.0.0','192.168.255.255') │
└────────────────────────────────────────────┘
IPv6CIDRToRange(ipv6, Cidr),
Accepts an IPv6 and an UInt8 value containing the CIDR. Return a tuple with two IPv6 containing the lower range and the higher range of the subnet.
SELECT IPv6CIDRToRange(toIPv6('2001:0db8:0000:85a3:0000:0000:ac1f:8001'), 32);
┌─IPv6CIDRToRange(toIPv6('2001:0db8:0000:85a3:0000:0000:ac1f:8001'), 32)─┐
│ ('2001:db8::','2001:db8:ffff:ffff:ffff:ffff:ffff:ffff') │
└────────────────────────────────────────────────────────────────────────┘
toIPv4(string)
An alias to IPv4StringToNum() that takes a string form of IPv4 address and returns value of IPv4 type, which is binary equal to value returned by IPv4StringToNum().
WITH
'171.225.130.45' as IPv4_string
SELECT
toTypeName(IPv4StringToNum(IPv4_string)),
toTypeName(toIPv4(IPv4_string))
┌─toTypeName(IPv4StringToNum(IPv4_string))─┬─toTypeName(toIPv4(IPv4_string))─┐
│ UInt32 │ IPv4 │
└──────────────────────────────────────────┴─────────────────────────────────┘
WITH
'171.225.130.45' as IPv4_string
SELECT
hex(IPv4StringToNum(IPv4_string)),
hex(toIPv4(IPv4_string))
┌─hex(IPv4StringToNum(IPv4_string))─┬─hex(toIPv4(IPv4_string))─┐
│ ABE1822D │ ABE1822D │
└───────────────────────────────────┴──────────────────────────┘
toIPv6(string)
An alias to IPv6StringToNum() that takes a string form of IPv6 address and returns value of IPv6 type, which is binary equal to value returned by IPv6StringToNum().
If the IP address is a valid IPv4 address then the IPv6 equivalent of the IPv4 address is returned.
WITH
'2001:438:ffff::407d:1bc1' as IPv6_string
SELECT
toTypeName(IPv6StringToNum(IPv6_string)),
toTypeName(toIPv6(IPv6_string))
┌─toTypeName(IPv6StringToNum(IPv6_string))─┬─toTypeName(toIPv6(IPv6_string))─┐
│ FixedString(16) │ IPv6 │
└──────────────────────────────────────────┴─────────────────────────────────┘
WITH
'2001:438:ffff::407d:1bc1' as IPv6_string
SELECT
hex(IPv6StringToNum(IPv6_string)),
hex(toIPv6(IPv6_string))
┌─hex(IPv6StringToNum(IPv6_string))─┬─hex(toIPv6(IPv6_string))─────────┐
│ 20010438FFFF000000000000407D1BC1 │ 20010438FFFF000000000000407D1BC1 │
└───────────────────────────────────┴──────────────────────────────────┘
SELECT toIPv6('127.0.0.1')
┌─toIPv6('127.0.0.1')─┐
│ ::ffff:127.0.0.1 │
└─────────────────────┘
isIPv4String
Determines whether the input string is an IPv4 address or not. If string is IPv6 address returns 0.
Syntax
isIPv4String(string)
Arguments
string— IP address. String.
Returned value
1ifstringis IPv4 address,0otherwise.
Type: UInt8.
Examples
Query:
SELECT addr, isIPv4String(addr) FROM ( SELECT ['0.0.0.0', '127.0.0.1', '::ffff:127.0.0.1'] AS addr ) ARRAY JOIN addr
Result:
┌─addr─────────────┬─isIPv4String(addr)─┐
│ 0.0.0.0 │ 1 │
│ 127.0.0.1 │ 1 │
│ ::ffff:127.0.0.1 │ 0 │
└──────────────────┴────────────────────┘
isIPv6String
Determines whether the input string is an IPv6 address or not. If string is IPv4 address returns 0.
Syntax
isIPv6String(string)
Arguments
string— IP address. String.
Returned value
1ifstringis IPv6 address,0otherwise.
Type: UInt8.
Examples
Query:
SELECT addr, isIPv6String(addr) FROM ( SELECT ['::', '1111::ffff', '::ffff:127.0.0.1', '127.0.0.1'] AS addr ) ARRAY JOIN addr
Result:
┌─addr─────────────┬─isIPv6String(addr)─┐
│ :: │ 1 │
│ 1111::ffff │ 1 │
│ ::ffff:127.0.0.1 │ 1 │
│ 127.0.0.1 │ 0 │
└──────────────────┴────────────────────┘