Define basic Linux SocketCAN constants and types

Add definitions from `linux/can.h`, which is a "base" header for remainder
of SocketCAN functionality.

Signed-off-by: Damian Jarek <damian.jarek93@gmail.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/libc-test/build.rs b/libc-test/build.rs
index b84168f6d2..733b1a99a4 100755
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -2442,6 +2442,7 @@ fn test_linux(target: &str) {
     headers! {
         cfg:
         "asm/mman.h",
+        "linux/can.h",
         "linux/dccp.h",
         "linux/errqueue.h",
         "linux/falloc.h",
@@ -2556,6 +2557,9 @@ fn test_linux(target: &str) {
     });
 
     cfg.skip_struct(move |ty| {
+        if ty.starts_with("__c_anonymous_") {
+            return true;
+        }
         match ty {
             // These cannot be tested when "resolv.h" is included and are tested
             // in the `linux_elf.rs` file.
@@ -2697,6 +2701,10 @@ fn test_linux(target: &str) {
             | "IFLA_PERM_ADDRESS"
             | "IFLA_PROTO_DOWN_REASON" => true,
 
+            // FIXME: J1939 requires kernel header version 5.4 or higher,
+            // the MIPS CI target has a lower version
+            "CAN_J1939" => true,
+
             _ => false,
         }
     });
@@ -2757,7 +2765,9 @@ fn test_linux(target: &str) {
         // this one is an anonymous union
         (struct_ == "ff_effect" && field == "u") ||
         // `__exit_status` type is a patch which is absent in musl
-        (struct_ == "utmpx" && field == "ut_exit" && musl)
+        (struct_ == "utmpx" && field == "ut_exit" && musl) ||
+        // `can_addr` is an anonymous union
+        (struct_ == "sockaddr_can" && field == "can_addr")
     });
 
     cfg.volatile_item(|i| {