From ae6e2b3cd505221e50022666eacc4a38b04b53bb Mon Sep 17 00:00:00 2001
From: agnosticdev <agnosticdev@gmail.com>
Date: Wed, 17 Jun 2026 08:51:16 -0700
Subject: [PATCH 1/2] Disable Netlink to unblock swift-nio-quic builds

---
 Sources/SwiftNetwork/Endpoint/NetlinkAddress.swift     | 10 +++++-----
 Sources/SwiftNetwork/System/Linux/LinuxRoute.swift     |  8 +++++++-
 .../include/SwiftNetworkLinuxShim.h                    |  6 ++++--
 .../SwiftNetworkTests/SwiftNetworkInterfaceTests.swift |  6 +++++-
 4 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/Sources/SwiftNetwork/Endpoint/NetlinkAddress.swift b/Sources/SwiftNetwork/Endpoint/NetlinkAddress.swift
index 5adfd4f..eb2c2f5 100644
--- a/Sources/SwiftNetwork/Endpoint/NetlinkAddress.swift
+++ b/Sources/SwiftNetwork/Endpoint/NetlinkAddress.swift
@@ -35,7 +35,7 @@ struct NetlinkAddress: IPAddress, Hashable, CustomDebugStringConvertible {
     /// Creates a Netlink address from raw bytes.
     init?(_ bytes: [UInt8]) {
         if bytes.count >= NetlinkAddress.layoutSize {
-            #if os(Linux)
+            #if os(Linux) && NETLINK_ENABLED
             let nl = bytes.withUnsafeBytes { $0.load(as: sockaddr_nl.self) }
             self.init(nl)
             #else
@@ -47,12 +47,12 @@ struct NetlinkAddress: IPAddress, Hashable, CustomDebugStringConvertible {
         }
     }
 
-    #if os(Linux)
+    #if os(Linux) && NETLINK_ENABLED
     // Linux has a specific type: sockaddr_nl
     init(_ sockaddr_nl: sockaddr_nl) {
         self.address = sockaddr_nl
     }
-    #elseif canImport(Darwin)
+    #else
     // rtsock on Darwin uses sockaddr
     // struct sockaddr route_dst = { .sa_len = 2, .sa_family = PF_ROUTE, .sa_data = { 0, } };
     init(_ sockaddr: sockaddr) {
@@ -68,14 +68,14 @@ struct NetlinkAddress: IPAddress, Hashable, CustomDebugStringConvertible {
         "NetlinkAddress"
     }
 
-    #if os(Linux)
+    #if os(Linux) && NETLINK_ENABLED
     var address: sockaddr_nl
     var nl_pid: pid_t = 0
     #else
     var address: sockaddr
     #endif
 
-    #if os(Linux)
+    #if os(Linux) && NETLINK_ENABLED
     private static let layoutSize = MemoryLayout<sockaddr_nl>.size
     #else
     private static let layoutSize = MemoryLayout<sockaddr>.size
diff --git a/Sources/SwiftNetwork/System/Linux/LinuxRoute.swift b/Sources/SwiftNetwork/System/Linux/LinuxRoute.swift
index b3cd090..873dc3e 100644
--- a/Sources/SwiftNetwork/System/Linux/LinuxRoute.swift
+++ b/Sources/SwiftNetwork/System/Linux/LinuxRoute.swift
@@ -12,7 +12,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#if os(Linux)
+#if os(Linux) && NETLINK_ENABLED
 import Glibc
 internal import Logging
 internal import SwiftNetworkLinuxShim
@@ -536,4 +536,10 @@ internal enum SystemRoute {
         }
     }
 }
+#elseif os(Linux)
+internal enum SystemRoute {
+    static func routeGetInterfaceIndex(dst: any IPAddress, scopedIndex: UInt32 = 0) throws -> UInt32 {
+        0
+    }
+}
 #endif
diff --git a/Sources/SwiftNetworkLinuxShim/include/SwiftNetworkLinuxShim.h b/Sources/SwiftNetworkLinuxShim/include/SwiftNetworkLinuxShim.h
index 07d993d..1b67ae7 100644
--- a/Sources/SwiftNetworkLinuxShim/include/SwiftNetworkLinuxShim.h
+++ b/Sources/SwiftNetworkLinuxShim/include/SwiftNetworkLinuxShim.h
@@ -18,8 +18,10 @@
 #ifdef __linux__
 
 #include <stdio.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
+#ifdef NETLINK_ENABLED
+    #include <linux/netlink.h>
+    #include <linux/rtnetlink.h>
+#endif
 #include <arpa/inet.h>
 
 // Not exposed in Glibc.swiftmodule
diff --git a/Tests/SwiftNetworkTests/SwiftNetworkInterfaceTests.swift b/Tests/SwiftNetworkTests/SwiftNetworkInterfaceTests.swift
index 119c88f..3051af1 100644
--- a/Tests/SwiftNetworkTests/SwiftNetworkInterfaceTests.swift
+++ b/Tests/SwiftNetworkTests/SwiftNetworkInterfaceTests.swift
@@ -120,7 +120,10 @@ final class SwiftNetworkInterfaceTests: NetTestCase {
         )
     }
 
-    func testRouteGetInterfaceIndex() {
+    func testRouteGetInterfaceIndex() throws {
+        #if os(Linux) && !NETLINK_ENABLED
+        try XCTSkipIf(true)
+        #else
         // Very basic localhost test
         let v4Bytes: [UInt8] = [0x7F, 0x00, 0x00, 0x01]
 
@@ -154,5 +157,6 @@ final class SwiftNetworkInterfaceTests: NetTestCase {
         // Use a v6 loopback address with a scoped interface index
         let routeIndex4 = try! System.routeGetInterfaceIndex(dst: IPv6Address.loopback, scopedIndex: 1)
         XCTAssertEqual(routeIndex4, 1)
+        #endif
     }
 }

From 8470d07ed0101570c19644fe6c07e341fd08623e Mon Sep 17 00:00:00 2001
From: agnosticdev <agnosticdev@gmail.com>
Date: Wed, 17 Jun 2026 10:49:02 -0700
Subject: [PATCH 2/2] Add import check for glibc

---
 Sources/SwiftNetwork/System/Linux/LinuxRoute.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sources/SwiftNetwork/System/Linux/LinuxRoute.swift b/Sources/SwiftNetwork/System/Linux/LinuxRoute.swift
index 873dc3e..c2abdc0 100644
--- a/Sources/SwiftNetwork/System/Linux/LinuxRoute.swift
+++ b/Sources/SwiftNetwork/System/Linux/LinuxRoute.swift
@@ -12,7 +12,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#if os(Linux) && NETLINK_ENABLED
+#if os(Linux) && canImport(Glibc) && NETLINK_ENABLED
 import Glibc
 internal import Logging
 internal import SwiftNetworkLinuxShim