Auto merge of #2876 - phi-gamma:netfilter, r=JohnTitor

linux: add missing netfilter definitions

Bring ``libc`` up to parity with Linux v5.18 headers wrt. to Netfilter.

``libc-test`` fails due to unrelated issues on my Fedora box but the
changes should be inocuous enough IMO.

Note there’s a warning in the code indicating potential trouble due to [this
issue](https://github.com/rust-lang/libc/pull/1628). I’ll sort this out if
the CI run fails.

1 files changed, 15 insertions, 0 deletions

diff --git a/libc-test/build.rs b/libc-test/build.rs
index ea4c625155..ba428fc730 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -3194,6 +3194,21 @@ fn test_linux(target: &str) {
             // Added in Linux 5.14
             "FUTEX_LOCK_PI2" => true,
 
+            // FIXME: Parts of netfilter/nfnetlink*.h require more recent kernel headers:
+            | "NFNL_SUBSYS_HOOK" // v5.14+
+            | "NFNL_SUBSYS_COUNT" // bumped in v5.14
+            | "NFQA_VLAN" // v4.7+
+            | "NFQA_L2HDR" // v4.7+
+            | "NFQA_PRIORITY" // v5.18+
+            | "NFQA_VLAN_UNSPEC" // v4.7+
+            | "NFQA_VLAN_PROTO" // v4.7+
+            | "NFQA_VLAN_TCI" // v4.7+
+            | "NFULA_VLAN" // v5.4+
+            | "NFULA_L2HDR" // v5.4+
+            | "NFULA_VLAN_UNSPEC" // v5.4+
+            | "NFULA_VLAN_PROTO" // v5.4+
+            | "NFULA_VLAN_TCI" => true, // v5.4+
+
             _ => false,
         }
     });