给定的IP范围匹配的IPv4地址/掩码？(Match IPv4 address given IP r

2019-06-24 03:39发布

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无论是用PHP或正则表达式（或两者），我怎么匹配的IP地址范围？

样来料IP地址

10.210.12.12
10.253.12.12
10.210.12.254
10.210.12.95
10.210.12.60

样本范围

10.210.12.0/24
10.210.12.0/16
10.210.*.*
10.*.*.*

我知道我能做到这一点： 

?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)

...但它没有考虑范围考虑。 它只是让你匹配一个来电号码，看它是否是每个字节的0-255一个IP地址。

编辑：

还有这个功能，我在评论中发现在php.net上ip2long功能。 

function ip_in_network($ip, $net_addr, $net_mask){ 
    if($net_mask <= 0){ return false; } 
        $ip_binary_string = sprintf("%032b",ip2long($ip)); 
        $net_binary_string = sprintf("%032b",ip2long($net_addr)); 
        return (substr_compare($ip_binary_string,$net_binary_string,0,$net_mask) === 0); 
} 

ip_in_network("192.168.2.1","192.168.2.0",24); //true 
ip_in_network("192.168.6.93","192.168.0.0",16); //true 
ip_in_network("1.6.6.6","128.168.2.0",1); //false

这是短暂的甜蜜，但不匹配星号的情况。 我也不知道这是否是完全准确，因为它返回这个真正的结果时，我认为这将是一个错误： 

echo ip_in_network("192.168.2.1","192.167.0.0",1);

...但也许我误解了什么/ 1人。 也许我需要使用/ 24。

Answer 1:

使用这个库： https://github.com/S1lentium/IPTools 

//Check if IP is within Range:

echo Range::parse('192.168.1.1-192.168.1.254')->contains(new IP('192.168.1.5')); // true
echo Range::parse('::1-::ffff')->contains(new IP('::1234')); // true


Answer 2:

我改编自php.net答案，使它变得更好了。 

function netMatch($network, $ip) {
    $network=trim($network);
    $orig_network = $network;
    $ip = trim($ip);
    if ($ip == $network) {
        echo "used network ($network) for ($ip)\n";
        return TRUE;
    }
    $network = str_replace(' ', '', $network);
    if (strpos($network, '*') !== FALSE) {
        if (strpos($network, '/') !== FALSE) {
            $asParts = explode('/', $network);
            $network = @ $asParts[0];
        }
        $nCount = substr_count($network, '*');
        $network = str_replace('*', '0', $network);
        if ($nCount == 1) {
            $network .= '/24';
        } else if ($nCount == 2) {
            $network .= '/16';
        } else if ($nCount == 3) {
            $network .= '/8';
        } else if ($nCount > 3) {
            return TRUE; // if *.*.*.*, then all, so matched
        }
    }

    echo "from original network($orig_network), used network ($network) for ($ip)\n";

    $d = strpos($network, '-');
    if ($d === FALSE) {
        $ip_arr = explode('/', $network);
        if (!preg_match("@\d*\.\d*\.\d*\.\d*@", $ip_arr[0], $matches)){
            $ip_arr[0].=".0";    // Alternate form 194.1.4/24
        }
        $network_long = ip2long($ip_arr[0]);
        $x = ip2long($ip_arr[1]);
        $mask = long2ip($x) == $ip_arr[1] ? $x : (0xffffffff << (32 - $ip_arr[1]));
        $ip_long = ip2long($ip);
        return ($ip_long & $mask) == ($network_long & $mask);
    } else {
        $from = trim(ip2long(substr($network, 0, $d)));
        $to = trim(ip2long(substr($network, $d+1)));
        $ip = ip2long($ip);
        return ($ip>=$from and $ip<=$to);
    }
}

function ech($b) {
    if ($b) {
        echo "MATCHED\n";
    } else {
        echo "DID NOT MATCH\n";
    }
}

echo "CLASS A TESTS\n";
ech(netMatch('10.168.1.0-10.168.1.100', '10.168.1.90'));
ech(netMatch('10.168.*.*', '10.168.1.90'));
ech(netMatch('10.168.0.0/16', '10.168.1.90'));
ech(netMatch('10.169.1.0/24', '10.168.1.90'));
ech(netMatch('10.168.1.90', '10.168.1.90'));
echo "\nCLASS B TESTS\n";
ech(netMatch('130.168.1.0-130.168.1.100', '130.168.1.90'));
ech(netMatch('130.168.*.*', '130.168.1.90'));
ech(netMatch('130.168.0.0/16', '130.168.1.90'));
ech(netMatch('130.169.1.0/24', '130.168.1.90'));
ech(netMatch('130.168.1.90', '130.168.1.90'));
echo "\nCLASS C TESTS\n";
ech(netMatch('192.168.1.0-192.168.1.100', '192.168.1.90'));
ech(netMatch('192.168.*.*', '192.168.1.90'));
ech(netMatch('192.168.0.0/16', '192.168.1.90'));
ech(netMatch('192.169.1.0/24', '192.168.1.90'));
ech(netMatch('192.168.1.90', '192.168.1.90'));
echo "\nCLASS D TESTS\n";
ech(netMatch('230.168.1.0-230.168.1.100', '230.168.1.90'));
ech(netMatch('230.168.*.*', '230.168.1.90'));
ech(netMatch('230.168.0.0/16', '230.168.1.90'));
ech(netMatch('230.169.1.0/24', '230.168.1.90'));
ech(netMatch('230.168.1.90', '230.168.1.90'));
echo "\nCLASS E TESTS\n";
ech(netMatch('250.168.1.0-250.168.1.100', '250.168.1.90'));
ech(netMatch('250.168.*.*', '250.168.1.90'));
ech(netMatch('250.168.0.0/16', '250.168.1.90'));
ech(netMatch('250.169.1.0/24', '250.168.1.90'));
ech(netMatch('250.168.1.90', '250.168.1.90'));

这个结果与： 

CLASS A TESTS
from orig network (10.168.1.0-10.168.1.100) used network (10.168.1.0-10.168.1.100) for (10.168.1.90)
MATCHED
from orig network (10.168.*.*) used network (10.168.0.0/16) for (10.168.1.90)
MATCHED
from orig network (10.168.0.0/16) used network (10.168.0.0/16) for (10.168.1.90)
MATCHED
from orig network (10.169.1.0/24) used network (10.169.1.0/24) for (10.168.1.90)
DID NOT MATCH
used network (10.168.1.90) for (10.168.1.90)
MATCHED

CLASS B TESTS
from orig network (130.168.1.0-130.168.1.100) used network (130.168.1.0-130.168.1.100) for (130.168.1.90)
MATCHED
from orig network (130.168.*.*) used network (130.168.0.0/16) for (130.168.1.90)
MATCHED
from orig network (130.168.0.0/16) used network (130.168.0.0/16) for (130.168.1.90)
MATCHED
from orig network (130.169.1.0/24) used network (130.169.1.0/24) for (130.168.1.90)
DID NOT MATCH
used network (130.168.1.90) for (130.168.1.90)
MATCHED

CLASS C TESTS
from orig network (192.168.1.0-192.168.1.100) used network (192.168.1.0-192.168.1.100) for (192.168.1.90)
MATCHED
from orig network (192.168.*.*) used network (192.168.0.0/16) for (192.168.1.90)
MATCHED
from orig network (192.168.0.0/16) used network (192.168.0.0/16) for (192.168.1.90)
MATCHED
from orig network (192.169.1.0/24) used network (192.169.1.0/24) for (192.168.1.90)
DID NOT MATCH
used network (192.168.1.90) for (192.168.1.90)
MATCHED

CLASS D TESTS
from orig network (230.168.1.0-230.168.1.100) used network (230.168.1.0-230.168.1.100) for (230.168.1.90)
MATCHED
from orig network (230.168.*.*) used network (230.168.0.0/16) for (230.168.1.90)
MATCHED
from orig network (230.168.0.0/16) used network (230.168.0.0/16) for (230.168.1.90)
MATCHED
from orig network (230.169.1.0/24) used network (230.169.1.0/24) for (230.168.1.90)
DID NOT MATCH
used network (230.168.1.90) for (230.168.1.90)
MATCHED

CLASS E TESTS
from orig network (250.168.1.0-250.168.1.100) used network (250.168.1.0-250.168.1.100) for (250.168.1.90)
MATCHED
from orig network (250.168.*.*) used network (250.168.0.0/16) for (250.168.1.90)
MATCHED
from orig network (250.168.0.0/16) used network (250.168.0.0/16) for (250.168.1.90)
MATCHED
from orig network (250.169.1.0/24) used network (250.169.1.0/24) for (250.168.1.90)
DID NOT MATCH
used network (250.168.1.90) for (250.168.1.90)
MATCHED


Answer 3:

我已经在上面的例子中（我有一个/ 29网络掩码所以它不工作）的改善。 

function check_netmask($mask, $ip) {
    @list($net, $bits) = explode('/', $mask);
    $bits = isset($bits) ? $bits : 32;
    $bitmask = -pow(2, 32-$bits) & 0x00000000FFFFFFFF;
    $netmask = ip2long($net) & $bitmask;
    $ip_bits = ip2long($ip)  & $bitmask;
    return (($netmask ^ $ip_bits) == 0);
}

如果你想看到它在行动，补充一点： 

print("IP Bits: " . str_pad(decbin(ip2long($ip)), 32, '0', STR_PAD_LEFT));
print "\n";
print("Bitmask: " . str_pad(decbin($bitmask), 32, '0', STR_PAD_LEFT));
print "\n";
print("Netmask: " . str_pad(decbin($netmask), 32, '0', STR_PAD_LEFT));
print "\n";
print("Match:   " . str_pad(decbin($netmask ^ $ip_bits), 32, '0', STR_PAD_LEFT));
print "\n";

像这样的东西运行它： 

print var_dump(check_netmask($argv[1], $argv[2]));


Answer 4:

转换为32位无符号和使用布尔/位运算。

例如，转换192.168.25.1到0xC0A81901。

然后，你可以看到，如果它通过转换点分十进制部分的掩模，即，0xC0A81900，并创建一个24位掩码，即0xFFFFFF00掩模192.168.25 / 24相匹配。

执行所讨论按位与地址之间和掩模，并比较所述掩模规范的点分十进制部分。 例如， 

0xC0A81901 AND 0xFFFFFF00 ==> 0xC0A81900 (result)

compare 0xC0A81900 (result) to 0xC0A81900.

我不知道PHP，但谷歌告诉我，PHP有inet_pton（），这是什么，我会在C使用进行从点分十进制转换为n位无符号。 见http://php.net/manual/en/function.inet-pton.php



Answer 5:

正则表达式真的听起来并不像对付子网掩码（至少不是十进制）的工具。 这是可以做到的，但它会很丑。

我强烈建议解析串入4点的整数，结合到一个32位int，然后使用标准的按位运算（基本上是按位AND，然后比较）。



Answer 6:

使用strpos他们匹配为字符串。 

<?php
$ips = array();
$ips[0] = "10.210.12.12";
$ips[1] = "10.253.12.12";
$ips[2] = "10.210.12.254";
$ips[3] = "10.210.12.95";
$ips[4] = "10.210.12.60";

$matches = array();

foreach($ips as $ip){
    if(strpos($ip, "10.253.") === 0){
        $matches[] = $ip;
    }
}

print_r($matches);
?>


文章来源: Match IPv4 address given IP range/mask?
标签： php regex ip-address
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