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Greenback 2020-11-21 00:34:09 +00:00
parent 084d21cade
commit 9a9b2bfb2e
5 changed files with 149 additions and 121 deletions
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8
Jellyfin.Networking/Configuration/NetworkConfiguration.cs
View File

@ -99,8 +99,7 @@ namespace Jellyfin.Networking.Configuration
public bool UPnPCreateHttpPortMap { get; set; }
/// <summary>
/// Gets or sets the UDPPortRange
/// Gets or sets client udp port range.
/// Gets or sets the UDPPortRange.
/// </summary>
public string UDPPortRange { get; set; } = string.Empty;
@ -115,8 +114,8 @@ namespace Jellyfin.Networking.Configuration
public bool EnableIPV4 { get; set; } = true;
/// <summary>
/// Gets or sets a value indicating whether detailed ssdp logs are sent to the console/log.
/// "Emby.Dlna": "Debug" must be set in logging.default.json for this property to work.
/// Gets or sets a value indicating whether detailed SSDP logs are sent to the console/log.
/// "Emby.Dlna": "Debug" must be set in logging.default.json for this property to have any effect.
/// </summary>
public bool EnableSSDPTracing { get; set; }
@ -143,7 +142,6 @@ namespace Jellyfin.Networking.Configuration
public bool IgnoreVirtualInterfaces { get; set; } = true;
/// <summary>
/// Gets or sets the VirtualInterfaceNames
/// Gets or sets a value indicating the interfaces that should be ignored. The list can be comma separated. <seealso cref="IgnoreVirtualInterfaces"/>.
/// </summary>
public string VirtualInterfaceNames { get; set; } = "vEthernet*";

194
Jellyfin.Networking/Manager/NetworkManager.cs
View File

@ -182,7 +182,7 @@ namespace Jellyfin.Networking.Manager
public IReadOnlyCollection<PhysicalAddress> GetMacAddresses()
{
// Populated in construction - so always has values.
return _macAddresses.AsReadOnly();
return _macAddresses;
}
/// <inheritdoc/>
@ -378,7 +378,7 @@ namespace Jellyfin.Networking.Manager
}
}
_logger.LogDebug("GetBindInterface: Source: {0}, External: {1}:", haveSource, isExternal);
_logger.LogDebug("GetBindInterface: Source: {HaveSource}, External: {IsExternal}:", haveSource, isExternal);
// No preference given, so move on to bind addresses.
if (MatchesBindInterface(source, isExternal, out string result))
@ -408,20 +408,20 @@ namespace Jellyfin.Networking.Manager
if (intf.Contains(source))
{
result = FormatIP6String(intf.Address);
_logger.LogDebug("{0}: GetBindInterface: Has source, matched best internal interface on range. {1}", source, result);
_logger.LogDebug("{Source}: GetBindInterface: Has source, matched best internal interface on range. {Result}", source, result);
return result;
}
}
}
result = FormatIP6String(interfaces.First().Address);
_logger.LogDebug("{0}: GetBindInterface: Matched first internal interface. {1}", source, result);
_logger.LogDebug("{Source}: GetBindInterface: Matched first internal interface. {Result}", source, result);
return result;
}
// There isn't any others, so we'll use the loopback.
result = IsIP6Enabled ? "::" : "127.0.0.1";
_logger.LogWarning("{0}: GetBindInterface: Loopback return.", source, result);
_logger.LogWarning("{Source}: GetBindInterface: Loopback {Result} returned.", source, result);
return result;
}
@ -552,7 +552,7 @@ namespace Jellyfin.Networking.Manager
{
result = new Collection<IPObject>();
_logger.LogInformation("Interface {0} used in settings. Using its interface addresses.", token);
_logger.LogInformation("Interface {Token} used in settings. Using its interface addresses.", token);
// Replace interface tags with the interface IP's.
foreach (IPNetAddress iface in _interfaceAddresses)
@ -575,7 +575,7 @@ namespace Jellyfin.Networking.Manager
/// Reloads all settings and re-initialises the instance.
/// </summary>
/// <param name="configuration">The <see cref="NetworkConfiguration"/> to use.</param>
public void UpdateSettings(NetworkConfiguration configuration)
public void UpdateSettings(object configuration)
{
NetworkConfiguration config = (NetworkConfiguration)configuration ?? throw new ArgumentNullException(nameof(configuration));
@ -740,7 +740,7 @@ namespace Jellyfin.Networking.Manager
// Null check required here for automated testing.
if (IsInterface(token, out int index))
{
_logger.LogInformation("Interface {0} used in settings. Using its interface addresses.", token);
_logger.LogInformation("Interface {Token} used in settings. Using its interface addresses.", token);
// Replace interface tags with the interface IP's.
foreach (IPNetAddress iface in _interfaceAddresses)
@ -780,7 +780,7 @@ namespace Jellyfin.Networking.Manager
}
else
{
_logger.LogDebug("Invalid or unknown network {0}.", token);
_logger.LogDebug("Invalid or unknown network {Token}.", token);
}
}
@ -867,7 +867,7 @@ namespace Jellyfin.Networking.Manager
var parts = entry.Split('=');
if (parts.Length != 2)
{
_logger.LogError("Unable to parse bind override. {0}", entry);
_logger.LogError("Unable to parse bind override: {Entry}", entry);
}
else
{
@ -893,7 +893,7 @@ namespace Jellyfin.Networking.Manager
}
else
{
_logger.LogError("Unable to parse bind ip address. {0}", parts[1]);
_logger.LogError("Unable to parse bind ip address. {Parts}", parts[1]);
}
}
}
@ -905,30 +905,35 @@ namespace Jellyfin.Networking.Manager
/// </summary>
private void InitialiseBind(NetworkConfiguration config)
{
string[] lanAddresses = config.LocalNetworkAddresses;
// TODO: remove when bug fixed: https://github.com/jellyfin/jellyfin-web/issues/1334
if (lanAddresses.Length == 1 && lanAddresses[0].IndexOf(',', StringComparison.OrdinalIgnoreCase) != -1)
lock (_intLock)
{
lanAddresses = lanAddresses[0].Split(',');
string[] lanAddresses = config.LocalNetworkAddresses;
// TODO: remove when bug fixed: https://github.com/jellyfin/jellyfin-web/issues/1334
if (lanAddresses.Length == 1 && lanAddresses[0].IndexOf(',', StringComparison.OrdinalIgnoreCase) != -1)
{
lanAddresses = lanAddresses[0].Split(',');
}
// TODO: end fix: https://github.com/jellyfin/jellyfin-web/issues/1334
// Add virtual machine interface names to the list of bind exclusions, so that they are auto-excluded.
if (config.IgnoreVirtualInterfaces)
{
var virtualInterfaceNames = config.VirtualInterfaceNames.Split(',');
var newList = new string[lanAddresses.Length + virtualInterfaceNames.Length];
Array.Copy(lanAddresses, newList, lanAddresses.Length);
Array.Copy(virtualInterfaceNames, 0, newList, lanAddresses.Length, virtualInterfaceNames.Length);
lanAddresses = newList;
}
// Read and parse bind addresses and exclusions, removing ones that don't exist.
_bindAddresses = CreateIPCollection(lanAddresses).Union(_interfaceAddresses);
_bindExclusions = CreateIPCollection(lanAddresses, true).Union(_interfaceAddresses);
_logger.LogInformation("Using bind addresses: {0}", _bindAddresses.AsString());
_logger.LogInformation("Using bind exclusions: {0}", _bindExclusions.AsString());
}
// TODO: end fix: https://github.com/jellyfin/jellyfin-web/issues/1334
// Add virtual machine interface names to the list of bind exclusions, so that they are auto-excluded.
if (config.IgnoreVirtualInterfaces)
{
var newList = lanAddresses.ToList();
newList.AddRange(config.VirtualInterfaceNames.Split(',').ToList());
lanAddresses = newList.ToArray();
}
// Read and parse bind addresses and exclusions, removing ones that don't exist.
_bindAddresses = CreateIPCollection(lanAddresses).Union(_interfaceAddresses);
_bindExclusions = CreateIPCollection(lanAddresses, true).Union(_interfaceAddresses);
_logger.LogInformation("Using bind addresses: {0}", _bindAddresses.AsString());
_logger.LogInformation("Using bind exclusions: {0}", _bindExclusions.AsString());
}
/// <summary>
@ -936,7 +941,10 @@ namespace Jellyfin.Networking.Manager
/// </summary>
private void InitialiseRemote(NetworkConfiguration config)
{
RemoteAddressFilter = CreateIPCollection(config.RemoteIPFilter);
lock (_intLock)
{
RemoteAddressFilter = CreateIPCollection(config.RemoteIPFilter);
}
}
/// <summary>
@ -959,7 +967,8 @@ namespace Jellyfin.Networking.Manager
// If no LAN addresses are specified - all private subnets are deemed to be the LAN
_usingPrivateAddresses = _lanSubnets.Count == 0;
// NOTE: The order of the commands in this statement matters.
// NOTE: The order of the commands generating the collection in this statement matters.
// Altering the order will cause the collections to be created incorrectly.
if (_usingPrivateAddresses)
{
_logger.LogDebug("Using LAN interface addresses as user provided no LAN details.");
@ -1020,6 +1029,7 @@ namespace Jellyfin.Networking.Manager
_interfaceNames.Clear();
_interfaceAddresses.Clear();
_macAddresses.Clear();
try
{
@ -1051,7 +1061,7 @@ namespace Jellyfin.Networking.Manager
};
int tag = nw.Tag;
if ((ipProperties.GatewayAddresses.Count > 0) && !nw.IsLoopback())
if (ipProperties.GatewayAddresses.Count > 0 && !nw.IsLoopback())
{
// -ve Tags signify the interface has a gateway.
nw.Tag *= -1;
@ -1072,7 +1082,7 @@ namespace Jellyfin.Networking.Manager
};
int tag = nw.Tag;
if ((ipProperties.GatewayAddresses.Count > 0) && !nw.IsLoopback())
if (ipProperties.GatewayAddresses.Count > 0 && !nw.IsLoopback())
{
// -ve Tags signify the interface has a gateway.
nw.Tag *= -1;
@ -1087,9 +1097,10 @@ namespace Jellyfin.Networking.Manager
}
}
#pragma warning disable CA1031 // Do not catch general exception types
catch
catch (Exception ex)
{
// Ignore error, and attempt to continue.
_logger.LogError(ex, "Error encountered parsing interfaces.");
}
#pragma warning restore CA1031 // Do not catch general exception types
}
@ -1100,8 +1111,7 @@ namespace Jellyfin.Networking.Manager
// If for some reason we don't have an interface info, resolve our DNS name.
if (_interfaceAddresses.Count == 0)
{
_logger.LogWarning("No interfaces information available. Using loopback.");
_logger.LogError("No interfaces information available. Resolving DNS name.");
IPHost host = new IPHost(Dns.GetHostName());
foreach (var a in host.GetAddresses())
{
@ -1110,7 +1120,7 @@ namespace Jellyfin.Networking.Manager
if (_interfaceAddresses.Count == 0)
{
_logger.LogError("No interfaces information available. Resolving DNS name.");
_logger.LogWarning("No interfaces information available. Using loopback.");
// Last ditch attempt - use loopback address.
_interfaceAddresses.AddItem(IPNetAddress.IP4Loopback);
if (IsIP6Enabled)
@ -1131,11 +1141,11 @@ namespace Jellyfin.Networking.Manager
/// Attempts to match the source against a user defined bind interface.
/// </summary>
/// <param name="source">IP source address to use.</param>
/// <param name="isExternal">True if the source is in the external subnet.</param>
/// <param name="isInExternalSubnet">True if the source is in the external subnet.</param>
/// <param name="bindPreference">The published server url that matches the source address.</param>
/// <param name="port">The resultant port, if one exists.</param>
/// <returns><c>true</c> if a match is found, <c>false</c> otherwise.</returns>
private bool MatchesPublishedServerUrl(IPObject source, bool isExternal, out string bindPreference, out int? port)
private bool MatchesPublishedServerUrl(IPObject source, bool isInExternalSubnet, out string bindPreference, out int? port)
{
bindPreference = string.Empty;
port = null;
@ -1144,12 +1154,12 @@ namespace Jellyfin.Networking.Manager
foreach (var addr in _publishedServerUrls)
{
// Remaining. Match anything.
if (addr.Key.Equals(IPAddress.Broadcast))
if (addr.Key.Address.Equals(IPAddress.Broadcast))
{
bindPreference = addr.Value;
break;
}
else if ((addr.Key.Equals(IPAddress.Any) || addr.Key.Equals(IPAddress.IPv6Any)) && isExternal)
else if ((addr.Key.Address.Equals(IPAddress.Any) || addr.Key.Address.Equals(IPAddress.IPv6Any)) && isInExternalSubnet)
{
// External.
bindPreference = addr.Value;
@ -1163,38 +1173,38 @@ namespace Jellyfin.Networking.Manager
}
}
if (!string.IsNullOrEmpty(bindPreference))
if (string.IsNullOrEmpty(bindPreference))
{
// Has it got a port defined?
var parts = bindPreference.Split(':');
if (parts.Length > 1)
{
if (int.TryParse(parts[1], out int p))
{
bindPreference = parts[0];
port = p;
}
}
return true;
return false;
}
return false;
// Has it got a port defined?
var parts = bindPreference.Split(':');
if (parts.Length > 1)
{
if (int.TryParse(parts[1], out int p))
{
bindPreference = parts[0];
port = p;
}
}
return true;
}
/// <summary>
/// Attempts to match the source against a user defined bind interface.
/// </summary>
/// <param name="source">IP source address to use.</param>
/// <param name="isExternal">True if the source is in the external subnet.</param>
/// <param name="isInExternalSubnet">True if the source is in the external subnet.</param>
/// <param name="result">The result, if a match is found.</param>
/// <returns><c>true</c> if a match is found, <c>false</c> otherwise.</returns>
private bool MatchesBindInterface(IPObject source, bool isExternal, out string result)
private bool MatchesBindInterface(IPObject source, bool isInExternalSubnet, out string result)
{
result = string.Empty;
var nc = _bindAddresses.Exclude(_bindExclusions);
var addresses = _bindAddresses.Exclude(_bindExclusions);
int count = nc.Count;
int count = addresses.Count;
if (count == 1 && (_bindAddresses[0].Equals(IPAddress.Any) || _bindAddresses[0].Equals(IPAddress.IPv6Any)))
{
// Ignore IPAny addresses.
@ -1205,26 +1215,34 @@ namespace Jellyfin.Networking.Manager
{
// Check to see if any of the bind interfaces are in the same subnet.
Collection<IPObject> bindResult;
IPAddress? defaultGateway = null;
IPAddress? bindAddress;
IPAddress? bindAddress = null;
if (isExternal)
if (isInExternalSubnet)
{
// Find all external bind addresses. Store the default gateway, but check to see if there is a better match first.
bindResult = CreateCollection(nc
.Where(p => !IsInLocalNetwork(p))
.OrderBy(p => p.Tag));
defaultGateway = bindResult.FirstOrDefault()?.Address;
bindAddress = bindResult
.Where(p => p.Contains(source))
.OrderBy(p => p.Tag)
.FirstOrDefault()?.Address;
foreach (var addr in addresses.OrderBy(p => p.Tag))
{
if (defaultGateway == null && !IsInLocalNetwork(addr))
{
defaultGateway = addr.Address;
}
if (bindAddress == null && addr.Contains(source))
{
bindAddress = addr.Address;
}
if (defaultGateway != null && bindAddress != null)
{
break;
}
}
}
else
{
// Look for the best internal address.
bindAddress = nc
bindAddress = addresses
.Where(p => IsInLocalNetwork(p) && (p.Contains(source) || p.Equals(IPAddress.None)))
.OrderBy(p => p.Tag)
.FirstOrDefault()?.Address;
@ -1233,23 +1251,23 @@ namespace Jellyfin.Networking.Manager
if (bindAddress != null)
{
result = FormatIP6String(bindAddress);
_logger.LogDebug("{0}: GetBindInterface: Has source, found a match bind interface subnets. {1}", source, result);
_logger.LogDebug("{Source}: GetBindInterface: Has source, found a match bind interface subnets. {Result}", source, result);
return true;
}
if (isExternal && defaultGateway != null)
if (isInExternalSubnet && defaultGateway != null)
{
result = FormatIP6String(defaultGateway);
_logger.LogDebug("{0}: GetBindInterface: Using first user defined external interface. {1}", source, result);
_logger.LogDebug("{Source}: GetBindInterface: Using first user defined external interface. {Result}", source, result);
return true;
}
result = FormatIP6String(nc.First().Address);
_logger.LogDebug("{0}: GetBindInterface: Selected first user defined interface. {1}", source, result);
result = FormatIP6String(addresses[0].Address);
_logger.LogDebug("{Source}: GetBindInterface: Selected first user defined interface. {Result}", source, result);
if (isExternal)
if (isInExternalSubnet)
{
_logger.LogWarning("{0}: External request received, however, only an internal interface bind found.", source);
_logger.LogWarning("{Source}: External request received, however, only an internal interface bind found.", source);
}
return true;
@ -1268,12 +1286,12 @@ namespace Jellyfin.Networking.Manager
{
result = string.Empty;
// Get the first WAN interface address that isn't a loopback.
var extResult = CreateCollection(_interfaceAddresses
var extResult = _interfaceAddresses
.Exclude(_bindExclusions)
.Where(p => !IsInLocalNetwork(p))
.OrderBy(p => p.Tag));
.OrderBy(p => p.Tag);
if (extResult.Count > 0)
if (extResult.Any())
{
// Does the request originate in one of the interface subnets?
// (For systems with multiple internal network cards, and multiple subnets)
@ -1282,19 +1300,19 @@ namespace Jellyfin.Networking.Manager
if (!IsInLocalNetwork(intf) && intf.Contains(source))
{
result = FormatIP6String(intf.Address);
_logger.LogDebug("{0}: GetBindInterface: Selected best external on interface on range. {1}", source, result);
_logger.LogDebug("{Source}: GetBindInterface: Selected best external on interface on range. {Result}", source, result);
return true;
}
}
result = FormatIP6String(extResult.First().Address);
_logger.LogDebug("{0}: GetBindInterface: Selected first external interface. {0}", source, result);
_logger.LogDebug("{Source}: GetBindInterface: Selected first external interface. {Result}", source, result);
return true;
}
// Have to return something, so return an internal address
_logger.LogWarning("{0}: External request received, however, no WAN interface found.", source);
_logger.LogWarning("{Source}: External request received, however, no WAN interface found.", source);
return false;
}
}

29
MediaBrowser.Common/Net/IPHost.cs
View File

@ -1,5 +1,6 @@
#nullable enable
using System;
using System.Diagnostics;
using System.Linq;
using System.Net;
using System.Net.Sockets;
@ -13,6 +14,11 @@ namespace MediaBrowser.Common.Net
/// </summary>
public class IPHost : IPObject
{
/// <summary>
/// Gets or sets timeout value before resolve required, in minutes.
/// </summary>
public const int Timeout = 30;
/// <summary>
/// Represents an IPHost that has no value.
/// </summary>
@ -21,7 +27,7 @@ namespace MediaBrowser.Common.Net
/// <summary>
/// Time when last resolved in ticks.
/// </summary>
private long _lastResolved;
private DateTime? _lastResolved = null;
/// <summary>
/// Gets the IP Addresses, attempting to resolve the name, if there are none.
@ -83,15 +89,9 @@ namespace MediaBrowser.Common.Net
{
// Not implemented, as a host object can only have a prefix length of 128 (IPv6) or 32 (IPv4) prefix length,
// which is automatically determined by it's IP type. Anything else is meaningless.
throw new NotImplementedException("The prefix length on a host cannot be set.");
}
}
/// <summary>
/// Gets or sets timeout value before resolve required, in minutes.
/// </summary>
public byte Timeout { get; set; } = 30;
/// <summary>
/// Gets a value indicating whether the address has a value.
/// </summary>
@ -395,15 +395,15 @@ namespace MediaBrowser.Common.Net
private bool ResolveHost()
{
// When was the last time we resolved?
if (_lastResolved == 0)
if (_lastResolved == null)
{
_lastResolved = DateTime.UtcNow.Ticks;
_lastResolved = DateTime.UtcNow;
}
// If we haven't resolved before, or out timer has run out...
if ((_addresses.Length == 0 && !Resolved) || (TimeSpan.FromTicks(DateTime.UtcNow.Ticks - _lastResolved).TotalMinutes > Timeout))
// If we haven't resolved before, or our timer has run out...
if ((_addresses.Length == 0 && !Resolved) || (DateTime.UtcNow > _lastResolved?.AddMinutes(Timeout)))
{
_lastResolved = DateTime.UtcNow.Ticks;
_lastResolved = DateTime.UtcNow;
ResolveHostInternal().GetAwaiter().GetResult();
Resolved = true;
}
@ -433,9 +433,10 @@ namespace MediaBrowser.Common.Net
IPHostEntry ip = await Dns.GetHostEntryAsync(HostName).ConfigureAwait(false);
_addresses = ip.AddressList;
}
catch (SocketException)
catch (SocketException ex)
{
// Ignore socket errors, as the result value will just be an empty array.
// Log and then ignore socket errors, as the result value will just be an empty array.
Debug.WriteLine("GetHostEntryAsync failed with {Message}.", ex.Message);
}
}
}

8
MediaBrowser.Common/Net/IPNetAddress.cs
View File

@ -18,17 +18,17 @@ namespace MediaBrowser.Common.Net
/// <summary>
/// IPv4 multicast address.
/// </summary>
public static readonly IPAddress MulticastIPv4 = IPAddress.Parse("239.255.255.250");
public static readonly IPAddress SSDPMulticastIPv4 = IPAddress.Parse("239.255.255.250");
/// <summary>
/// IPv6 local link multicast address.
/// </summary>
public static readonly IPAddress MulticastIPv6LinkLocal = IPAddress.Parse("ff02::C");
public static readonly IPAddress SSDPMulticastIPv6LinkLocal = IPAddress.Parse("ff02::C");
/// <summary>
/// IPv6 site local multicast address.
/// </summary>
public static readonly IPAddress MulticastIPv6SiteLocal = IPAddress.Parse("ff05::C");
public static readonly IPAddress SSDPMulticastIPv6SiteLocal = IPAddress.Parse("ff05::C");
/// <summary>
/// IP4Loopback address host.
@ -235,7 +235,7 @@ namespace MediaBrowser.Common.Net
/// <summary>
/// Returns a textual representation of this object.
/// </summary>
/// <param name="shortVersion">Set to true, if the subnet is to be included as part of the address.</param>
/// <param name="shortVersion">Set to true, if the subnet is to be excluded as part of the address.</param>
/// <returns>String representation of this object.</returns>
public string ToString(bool shortVersion)
{

31
MediaBrowser.Common/Net/IPObject.cs
View File

@ -86,7 +86,9 @@ namespace MediaBrowser.Common.Net
// prefix length value. eg. /16 on a 4 octet ip4 address (192.168.2.240) will result in the 2 and the 240 being zeroed out.
// Where there is not an exact boundary (eg /23), mod is used to calculate how many bits of this value are to be kept.
byte[] addressBytes = address.GetAddressBytes();
// GetAddressBytes
Span<byte> addressBytes = stackalloc byte[address.AddressFamily == AddressFamily.InterNetwork ? 4 : 16];
address.TryWriteBytes(addressBytes, out _);
int div = prefixLength / 8;
int mod = prefixLength % 8;
@ -170,14 +172,16 @@ namespace MediaBrowser.Common.Net
if (!address.Equals(IPAddress.None))
{
if (address.IsIPv4MappedToIPv6)
{
address = address.MapToIPv4();
}
if (address.AddressFamily == AddressFamily.InterNetwork)
{
if (address.IsIPv4MappedToIPv6)
{
address = address.MapToIPv4();
}
byte[] octet = address.GetAddressBytes();
// GetAddressBytes
Span<byte> octet = stackalloc byte[4];
address.TryWriteBytes(octet, out _);
return (octet[0] == 10)
|| (octet[0] == 172 && octet[1] >= 16 && octet[1] <= 31) // RFC1918
@ -186,7 +190,10 @@ namespace MediaBrowser.Common.Net
}
else
{
byte[] octet = address.GetAddressBytes();
// GetAddressBytes
Span<byte> octet = stackalloc byte[16];
address.TryWriteBytes(octet, out _);
uint word = (uint)(octet[0] << 8) + octet[1];
return (word >= 0xfe80 && word <= 0xfebf) // fe80::/10 :Local link.
@ -223,7 +230,9 @@ namespace MediaBrowser.Common.Net
return false;
}
byte[] octet = address.GetAddressBytes();
// GetAddressBytes
Span<byte> octet = stackalloc byte[16];
address.TryWriteBytes(octet, out _);
uint word = (uint)(octet[0] << 8) + octet[1];
return word >= 0xfe80 && word <= 0xfebf; // fe80::/10 :Local link.
@ -261,7 +270,9 @@ namespace MediaBrowser.Common.Net
byte cidrnet = 0;
if (!mask.Equals(IPAddress.Any))
{
byte[] bytes = mask.GetAddressBytes();
// GetAddressBytes
Span<byte> bytes = stackalloc byte[mask.AddressFamily == AddressFamily.InterNetwork ? 4 : 16];
mask.TryWriteBytes(bytes, out _);
var zeroed = false;
for (var i = 0; i < bytes.Length; i++)