linux/tools/testing/selftests/bpf/progs/freplace_connect4.c
Toke Høiland-Jørgensen 1d8a0af5ee selftests/bpf: Add test for freplace program with expected_attach_type
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
2020-04-24 17:34:30 -07:00

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C

#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";