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

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

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
Extension
.c
Size
6555 bytes
Lines
256
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) 2020 Cloudflare
/*
 * Tests for sockmap/sockhash holding kTLS sockets.
 */
#include <error.h>
#include <netinet/tcp.h>
#include <linux/tls.h>
#include "test_progs.h"
#include "sockmap_helpers.h"
#include "test_skmsg_load_helpers.skel.h"

#define MAX_TEST_NAME 80
#define TCP_ULP 31

static int init_ktls_pairs(int c, int p)
{
	int err;
	struct tls12_crypto_info_aes_gcm_128 crypto_rx;
	struct tls12_crypto_info_aes_gcm_128 crypto_tx;

	err = setsockopt(c, IPPROTO_TCP, TCP_ULP, "tls", strlen("tls"));
	if (!ASSERT_OK(err, "setsockopt(TCP_ULP)"))
		goto out;

	err = setsockopt(p, IPPROTO_TCP, TCP_ULP, "tls", strlen("tls"));
	if (!ASSERT_OK(err, "setsockopt(TCP_ULP)"))
		goto out;

	memset(&crypto_rx, 0, sizeof(crypto_rx));
	memset(&crypto_tx, 0, sizeof(crypto_tx));
	crypto_rx.info.version = TLS_1_2_VERSION;
	crypto_tx.info.version = TLS_1_2_VERSION;
	crypto_rx.info.cipher_type = TLS_CIPHER_AES_GCM_128;
	crypto_tx.info.cipher_type = TLS_CIPHER_AES_GCM_128;

	err = setsockopt(c, SOL_TLS, TLS_TX, &crypto_tx, sizeof(crypto_tx));
	if (!ASSERT_OK(err, "setsockopt(TLS_TX)"))
		goto out;

	err = setsockopt(p, SOL_TLS, TLS_RX, &crypto_rx, sizeof(crypto_rx));
	if (!ASSERT_OK(err, "setsockopt(TLS_RX)"))
		goto out;
	return 0;
out:
	return -1;
}

static int create_ktls_pairs(int family, int sotype, int *c, int *p)
{
	int err;

	err = create_pair(family, sotype, c, p);
	if (!ASSERT_OK(err, "create_pair()"))
		return -1;

	err = init_ktls_pairs(*c, *p);
	if (!ASSERT_OK(err, "init_ktls_pairs(c, p)"))
		return -1;
	return 0;
}

static void test_sockmap_ktls_update_fails_when_sock_has_ulp(int family, int map)
{
	struct sockaddr_storage addr = {};
	socklen_t len = sizeof(addr);
	struct sockaddr_in6 *v6;
	struct sockaddr_in *v4;
	int err, s, zero = 0;

	switch (family) {
	case AF_INET:
		v4 = (struct sockaddr_in *)&addr;
		v4->sin_family = AF_INET;
		break;
	case AF_INET6:
		v6 = (struct sockaddr_in6 *)&addr;
		v6->sin6_family = AF_INET6;
		break;
	default:
		PRINT_FAIL("unsupported socket family %d", family);
		return;
	}

	s = socket(family, SOCK_STREAM, 0);
	if (!ASSERT_GE(s, 0, "socket"))
		return;

	err = bind(s, (struct sockaddr *)&addr, len);
	if (!ASSERT_OK(err, "bind"))

Annotation

Implementation Notes