Declare ARPHRD_CAN on the linux_like module

Author: JohnTitor

libc-test/Cargo.toml

@@ -36,6 +36,11 @@ name = "linux-fcntl"
 path = "test/linux_fcntl.rs"
 harness = false
 
+[[test]]
+name = "linux-if-arp"
+path = "test/linux_if_arp.rs"
+harness = false
+
 [[test]]
 name = "linux-ipv6"
 path = "test/linux_ipv6.rs"

libc-test/build.rs

@@ -2703,6 +2703,9 @@ fn test_linux(target: &str) {
             | "F_SEAL_SHRINK"
             | "F_SEAL_GROW"
             | "F_SEAL_WRITE" => true,
+            // The `ARPHRD_CAN` is tested in the `linux_if_arp.rs` tests
+            // because including `linux/if_arp.h` causes some conflicts:
+            "ARPHRD_CAN" => true,
 
             // Require Linux kernel 5.1:
             "F_SEAL_FUTURE_WRITE" => true,
@@ -3064,7 +3067,6 @@ fn test_linux_like_apis(target: &str) {
         cfg.header("elf.h");
         cfg.skip_fn(|_| true)
             .skip_static(|_| true)
-            .skip_fn(|_| true)
             .skip_const(|_| true)
             .type_name(move |ty, _is_struct, _is_union| ty.to_string())
             .skip_struct(move |ty| match ty {
@@ -3077,6 +3079,21 @@ fn test_linux_like_apis(target: &str) {
             });
         cfg.generate("../src/lib.rs", "linux_elf.rs");
     }
+
+    if linux || android {
+        // Test `ARPHRD_CAN`.
+        let mut cfg = ctest_cfg();
+        cfg.header("linux/if_arp.h");
+        cfg.skip_fn(|_| true)
+            .skip_static(|_| true)
+            .skip_const(move |name| match name {
+                "ARPHRD_CAN" => false,
+                _ => true,
+            })
+            .skip_struct(|_| true)
+            .skip_type(|_| true);
+        cfg.generate("../src/lib.rs", "linux_if_arp.rs");
+    }
 }
 
 fn which_freebsd() -> Option<i32> {

libc-test/semver/android.txt

@@ -69,6 +69,7 @@ ARPHRD_ASH
 ARPHRD_ATM
 ARPHRD_AX25
 ARPHRD_BIF
+ARPHRD_CAN
 ARPHRD_CHAOS
 ARPHRD_CISCO
 ARPHRD_CSLIP

libc-test/semver/linux.txt

@@ -92,6 +92,7 @@ ARPHRD_ASH
 ARPHRD_ATM
 ARPHRD_AX25
 ARPHRD_BIF
+ARPHRD_CAN
 ARPHRD_CHAOS
 ARPHRD_CISCO
 ARPHRD_CSLIP

libc-test/test/linux_if_arp.rs

@@ -0,0 +1,12 @@
+#![allow(bad_style, improper_ctypes, unused, deprecated)]
+
+extern crate libc;
+use libc::*;
+
+#[cfg(any(target_os = "linux", target_os = "android"))]
+include!(concat!(env!("OUT_DIR"), "/linux_if_arp.rs"));
+
+#[cfg(not(any(target_os = "linux", target_os = "android")))]
+fn main() {
+    println!("PASSED 0 tests");
+}

src/unix/linux_like/mod.rs

@@ -1306,6 +1306,7 @@ pub const ARPHRD_ADAPT: u16 = 264;
 pub const ARPHRD_ROSE: u16 = 270;
 pub const ARPHRD_X25: u16 = 271;
 pub const ARPHRD_HWX25: u16 = 272;
+pub const ARPHRD_CAN: u16 = 280;
 pub const ARPHRD_PPP: u16 = 512;
 pub const ARPHRD_CISCO: u16 = 513;
 pub const ARPHRD_HDLC: u16 = ARPHRD_CISCO;