From 1d8a0af5ee1ad219a9ebd9b43559b165bcb3ff40 Mon Sep 17 00:00:00 2001
From: Toke Høiland-Jørgensen <toke@redhat.com>
Date: Fri, 24 Apr 2020 15:34:28 +0200
Subject: selftests/bpf: Add test for freplace program with
 expected_attach_type
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This adds a new selftest that tests the ability to attach an freplace
program to a program type that relies on the expected_attach_type of the
target program to pass verification.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/158773526831.293902.16011743438619684815.stgit@toke.dk
---
 tools/testing/selftests/bpf/progs/freplace_connect4.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/progs/freplace_connect4.c

(limited to 'tools/testing/selftests/bpf/progs/freplace_connect4.c')

diff --git a/tools/testing/selftests/bpf/progs/freplace_connect4.c b/tools/testing/selftests/bpf/progs/freplace_connect4.c
new file mode 100644
index 000000000000..a0ae84230699
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_connect4.c
@@ -0,0 +1,18 @@
+#include <linux/stddef.h>
+#include <linux/ipv6.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+SEC("freplace/do_bind")
+int new_do_bind(struct bpf_sock_addr *ctx)
+{
+  struct sockaddr_in sa = {};
+
+  bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa));
+  return 0;
+}
+
+char _license[] SEC("license") = "GPL";
-- 
cgit