tools/testing/selftests/bpf/prog_tests/setget_sockopt.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/prog_tests/setget_sockopt.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/prog_tests/setget_sockopt.c
Extension
.c
Size
8308 bytes
Lines
324
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) Meta Platforms, Inc. and affiliates. */

#define _GNU_SOURCE
#include <sched.h>
#include <linux/socket.h>
#include <linux/tls.h>
#include <net/if.h>

#include "test_progs.h"
#include "cgroup_helpers.h"
#include "network_helpers.h"

#include "setget_sockopt.skel.h"

#define CG_NAME "/setget-sockopt-test"

static const char addr4_str[] = "127.0.0.1";
static const char addr6_str[] = "::1";
static struct setget_sockopt *skel;
static int cg_fd;

static int create_netns(void)
{
	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
		return -1;

	if (!ASSERT_OK(system("ip link set dev lo up"), "set lo up"))
		return -1;

	if (!ASSERT_OK(system("ip link add dev binddevtest1 type veth peer name binddevtest2"),
		       "add veth"))
		return -1;

	if (!ASSERT_OK(system("ip link set dev binddevtest1 up"),
		       "bring veth up"))
		return -1;

	return 0;
}

static void test_tcp(int family)
{
	struct setget_sockopt__bss *bss = skel->bss;
	int sfd, cfd;

	memset(bss, 0, sizeof(*bss));

	sfd = start_server(family, SOCK_STREAM,
			   family == AF_INET6 ? addr6_str : addr4_str, 0, 0);
	if (!ASSERT_GE(sfd, 0, "start_server"))
		return;

	cfd = connect_to_fd(sfd, 0);
	if (!ASSERT_GE(cfd, 0, "connect_to_fd_server")) {
		close(sfd);
		return;
	}
	close(sfd);
	close(cfd);

	ASSERT_EQ(bss->nr_listen, 1, "nr_listen");
	ASSERT_EQ(bss->nr_connect, 1, "nr_connect");
	ASSERT_EQ(bss->nr_active, 1, "nr_active");
	ASSERT_EQ(bss->nr_passive, 1, "nr_passive");
	ASSERT_EQ(bss->nr_socket_post_create, 2, "nr_socket_post_create");
	ASSERT_EQ(bss->nr_binddev, 2, "nr_bind");
}

static void test_udp(int family)
{
	struct setget_sockopt__bss *bss = skel->bss;
	int sfd;

	memset(bss, 0, sizeof(*bss));

	sfd = start_server(family, SOCK_DGRAM,
			   family == AF_INET6 ? addr6_str : addr4_str, 0, 0);
	if (!ASSERT_GE(sfd, 0, "start_server"))
		return;
	close(sfd);

	ASSERT_GE(bss->nr_socket_post_create, 1, "nr_socket_post_create");
	ASSERT_EQ(bss->nr_binddev, 1, "nr_bind");
}

static void test_ktls(int family)
{
	struct tls12_crypto_info_aes_gcm_128 aes128;
	struct setget_sockopt__bss *bss = skel->bss;

Annotation

Implementation Notes