1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2022 Red Hat, Inc. */
3 #include "bpf_iter.h"
4 #include <bpf/bpf_helpers.h>
5 
6 char _license[] SEC("license") = "GPL";
7 
8 SEC("iter/bpf_link")
dump_bpf_link(struct bpf_iter__bpf_link * ctx)9 int dump_bpf_link(struct bpf_iter__bpf_link *ctx)
10 {
11 	struct seq_file *seq = ctx->meta->seq;
12 	struct bpf_link *link = ctx->link;
13 	int link_id;
14 
15 	if (!link)
16 		return 0;
17 
18 	link_id = link->id;
19 	bpf_seq_write(seq, &link_id, sizeof(link_id));
20 	return 0;
21 }
22