openwrt/package/libs/libbpf/patches/100-bpf_tc_classid.patch

--- a/src/libbpf.h
+++ b/src/libbpf.h
@@ -1291,9 +1291,10 @@ struct bpf_tc_opts {
 	__u32 prog_id;
 	__u32 handle;
 	__u32 priority;
+	__u32 classid;
 	size_t :0;
 };
-#define bpf_tc_opts__last_field priority
+#define bpf_tc_opts__last_field classid
 
 LIBBPF_API int bpf_tc_hook_create(struct bpf_tc_hook *hook);
 LIBBPF_API int bpf_tc_hook_destroy(struct bpf_tc_hook *hook);
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -673,6 +673,8 @@ static int __get_tc_info(void *cookie, s
 	OPTS_SET(info->opts, prog_id, libbpf_nla_getattr_u32(tbb[TCA_BPF_ID]));
 	OPTS_SET(info->opts, handle, tc->tcm_handle);
 	OPTS_SET(info->opts, priority, TC_H_MAJ(tc->tcm_info) >> 16);
+	if (tbb[TCA_BPF_CLASSID])
+		OPTS_SET(info->opts, classid, libbpf_nla_getattr_u32(tbb[TCA_BPF_CLASSID]));
 
 	info->processed = true;
 	return unicast ? NL_NEXT : NL_DONE;
@@ -717,7 +719,7 @@ static int tc_add_fd_and_name(struct lib
 
 int bpf_tc_attach(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)
 {
-	__u32 protocol, bpf_flags, handle, priority, parent, prog_id, flags;
+	__u32 protocol, bpf_flags, handle, priority, parent, prog_id, flags, classid;
 	int ret, ifindex, attach_point, prog_fd;
 	struct bpf_cb_ctx info = {};
 	struct libbpf_nla_req req;
@@ -737,6 +739,7 @@ int bpf_tc_attach(const struct bpf_tc_ho
 	prog_fd      = OPTS_GET(opts, prog_fd, 0);
 	prog_id      = OPTS_GET(opts, prog_id, 0);
 	flags        = OPTS_GET(opts, flags, 0);
+	classid      = OPTS_GET(opts, classid, 0);
 
 	if (ifindex <= 0 || !prog_fd || prog_id)
 		return libbpf_err(-EINVAL);
@@ -776,6 +779,11 @@ int bpf_tc_attach(const struct bpf_tc_ho
 	ret = nlattr_add(&req, TCA_BPF_FLAGS, &bpf_flags, sizeof(bpf_flags));
 	if (ret < 0)
 		return libbpf_err(ret);
+	if (classid) {
+		ret = nlattr_add(&req, TCA_BPF_CLASSID, &classid, sizeof(classid));
+		if (ret < 0)
+			return libbpf_err(ret);
+	}
 	nlattr_end_nested(&req, nla);
 
 	info.opts = opts;