Move network constants to MediaBrowser.Common

1 files changed, 75 insertions, 0 deletions

diff --git a/MediaBrowser.Common/Net/NetworkConstants.cs b/MediaBrowser.Common/Net/NetworkConstants.cs
new file mode 100644
index 000000000..396bc8fb5
--- /dev/null
+++ b/MediaBrowser.Common/Net/NetworkConstants.cs
@@ -0,0 +1,75 @@
+using System.Net;
+using Microsoft.AspNetCore.HttpOverrides;
+
+namespace MediaBrowser.Common.Net;
+
+/// <summary>
+/// Networking constants.
+/// </summary>
+public static class NetworkConstants
+{
+    /// <summary>
+    /// IPv4 mask bytes.
+    /// </summary>
+    public const int IPv4MaskBytes = 4;
+
+    /// <summary>
+    /// IPv6 mask bytes.
+    /// </summary>
+    public const int IPv6MaskBytes = 16;
+
+    /// <summary>
+    /// Minimum IPv4 prefix size.
+    /// </summary>
+    public const int MinimumIPv4PrefixSize = 32;
+
+    /// <summary>
+    /// Minimum IPv6 prefix size.
+    /// </summary>
+    public const int MinimumIPv6PrefixSize = 128;
+
+    /// <summary>
+    /// Whole IPv4 address space.
+    /// </summary>
+    public static readonly IPNetwork IPv4Any = new IPNetwork(IPAddress.Any, 0);
+
+    /// <summary>
+    /// Whole IPv6 address space.
+    /// </summary>
+    public static readonly IPNetwork IPv6Any = new IPNetwork(IPAddress.IPv6Any, 0);
+
+    /// <summary>
+    /// IPv4 Loopback as defined in RFC 5735.
+    /// </summary>
+    public static readonly IPNetwork IPv4RFC5735Loopback = new IPNetwork(IPAddress.Loopback, 8);
+
+    /// <summary>
+    /// IPv4 private class A as defined in RFC 1918.
+    /// </summary>
+    public static readonly IPNetwork IPv4RFC1918PrivateClassA = new IPNetwork(IPAddress.Parse("10.0.0.0"), 8);
+
+    /// <summary>
+    /// IPv4 private class B as defined in RFC 1918.
+    /// </summary>
+    public static readonly IPNetwork IPv4RFC1918PrivateClassB = new IPNetwork(IPAddress.Parse("172.16.0.0"), 12);
+
+    /// <summary>
+    /// IPv4 private class C as defined in RFC 1918.
+    /// </summary>
+    public static readonly IPNetwork IPv4RFC1918PrivateClassC = new IPNetwork(IPAddress.Parse("192.168.0.0"), 16);
+
+    /// <summary>
+    /// IPv6 loopback as defined in RFC 4291.
+    /// </summary>
+    public static readonly IPNetwork IPv6RFC4291Loopback = new IPNetwork(IPAddress.IPv6Loopback, 128);
+
+    /// <summary>
+    /// IPv6 site local as defined in RFC 4291.
+    /// </summary>
+    public static readonly IPNetwork IPv6RFC4291SiteLocal = new IPNetwork(IPAddress.Parse("fe80::"), 10);
+
+    /// <summary>
+    /// IPv6 unique local as defined in RFC 4193.
+    /// </summary>
+    public static readonly IPNetwork IPv6RFC4193UniqueLocal = new IPNetwork(IPAddress.Parse("fc00::"), 7);
+}