path: root/tools/testing/selftests/net/ioam6_parser.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Author: Justin Iurman (justin.iurman@uliege.be)
 *
 * IOAM tester for IPv6, see ioam6.sh for details on each test case.
 */
#include <arpa/inet.h>
#include <errno.h>
#include <limits.h>
#include <linux/const.h>
#include <linux/if_ether.h>
#include <linux/ioam6.h>
#include <linux/ipv6.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

struct ioam_config {
	__u32 id;
	__u64 wide;
	__u16 ingr_id;
	__u16 egr_id;
	__u32 ingr_wide;
	__u32 egr_wide;
	__u32 ns_data;
	__u64 ns_wide;
	__u32 sc_id;
	__u8 hlim;
	char *sc_data;
};

/*
 * Be careful if you modify structs below - everything MUST be kept synchronized
 * with configurations inside ioam6.sh and always reflect the same.
 */

static struct ioam_config node1 = {
	.id = 1,
	.wide = 11111111,
	.ingr_id = 0xffff, /* default value */
	.egr_id = 101,
	.ingr_wide = 0xffffffff, /* default value */
	.egr_wide = 101101,
	.ns_data = 0xdeadbeef,
	.ns_wide = 0xcafec0caf00dc0de,
	.sc_id = 777,
	.sc_data = "something that will be 4n-aligned",
	.hlim = 64,
};

static struct ioam_config node2 = {
	.id = 2,
	.wide = 22222222,
	.ingr_id = 201,
	.egr_id = 202,
	.ingr_wide = 201201,
	.egr_wide = 202202,
	.ns_data = 0xffffffff, /* default value */
	.ns_wide = 0xffffffffffffffff, /* default value */
	.sc_id = 0xffffff, /* default value */
	.sc_data = NULL,
	.hlim = 63,
};

enum {
	/**********
	 * OUTPUT *
	 **********/
	__TEST_OUT_MIN,

	TEST_OUT_UNDEF_NS,
	TEST_OUT_NO_ROOM,
	TEST_OUT_NO_ROOM_OSS,
	TEST_OUT_BIT0,
	TEST_OUT_BIT1,
	TEST_OUT_BIT2,
	TEST_OUT_BIT3,
	TEST_OUT_BIT4,
	TEST_OUT_BIT5,
	TEST_OUT_BIT6,
	TEST_OUT_BIT7,
	TEST_OUT_BIT8,
	TEST_OUT_BIT9,
	TEST_OUT_BIT10,
	TEST_OUT_BIT11,
	TEST_OUT_BIT22,
	TEST_OUT_SIZE4,
	TEST_OUT_SIZE8,
	TEST_OUT_SIZE12,
	TEST_OUT_SIZE16,
	TEST_OUT_SIZE20,
	TEST_OUT_SIZE24,
	TEST_OUT_SIZE28,
	TEST_OUT_SIZE32,
	TEST_OUT_SIZE36,
	TEST_OUT_SIZE40,
	TEST_OUT_SIZE44,
	TEST_OUT_SIZE48,
	TEST_OUT_SIZE52,
	TEST_OUT_SIZE56,
	TEST_OUT_SIZE60,
	TEST_OUT_SIZE64,
	TEST_OUT_SIZE68,
	TEST_OUT_SIZE72,
	TEST_OUT_SIZE76,
	TEST_OUT_SIZE80,
	TEST_OUT_SIZE84,
	TEST_OUT_SIZE88,
	TEST_OUT_SIZE92,
	TEST_OUT_SIZE96,
	TEST_OUT_SIZE100,
	TEST_OUT_SIZE104,
	TEST_OUT_SIZE108,
	TEST_OUT_SIZE112,
	TEST_OUT_SIZE116,
	TEST_OUT_SIZE120,
	TEST_OUT_SIZE124,
	TEST_OUT_SIZE128,
	TEST_OUT_SIZE132,
	TEST_OUT_SIZE136,
	TEST_OUT_SIZE140,
	TEST_OUT_SIZE144,
	TEST_OUT_SIZE148,
	TEST_OUT_SIZE152,
	TEST_OUT_SIZE156,
	TEST_OUT_SIZE160,
	TEST_OUT_SIZE164,
	TEST_OUT_SIZE168,
	TEST_OUT_SIZE172,
	TEST_OUT_SIZE176,
	TEST_OUT_SIZE180,
	TEST_OUT_SIZE184,
	TEST_OUT_SIZE188,
	TEST_OUT_SIZE192,
	TEST_OUT_SIZE196,
	TEST_OUT_SIZE200,
	TEST_OUT_SIZE204,
	TEST_OUT_SIZE208,
	TEST_OUT_SIZE212,
	TEST_OUT_SIZE216,
	TEST_OUT_SIZE220,
	TEST_OUT_SIZE224,
	TEST_OUT_SIZE228,
	TEST_OUT_SIZE232,
	TEST_OUT_SIZE236,
	TEST_OUT_SIZE240,
	TEST_OUT_SIZE244,
	TEST_OUT_FULL_SUPP_TRACE,

	__TEST_OUT_MAX,

	/*********
	 * INPUT *
	 *********/
	__TEST_IN_MIN,

	TEST_IN_UNDEF_NS,
	TEST_IN_NO_ROOM,
	TEST_IN_NO_ROOM_OSS,
	TEST_IN_DISABLED,
	TEST_IN_OFLAG,
	TEST_IN_BIT0,
	TEST_IN_BIT1,
	TEST_IN_BIT2,
	TEST_IN_BIT3,
	TEST_IN_BIT4,
	TEST_IN_BIT5,
	TEST_IN_BIT6,
	TEST_IN_BIT7,
	TEST_IN_BIT8,
	TEST_IN_BIT9,
	TEST_IN_BIT10,
	TEST_IN_BIT11,
	TEST_IN_BIT22,
	TEST_IN_SIZE4,
	TEST_IN_SIZE8,
	TEST_IN_SIZE12,
	TEST_IN_SIZE16,
	TEST_IN_SIZE20,
	TEST_IN_SIZE24,
	TEST_IN_SIZE28,
	TEST_IN_SIZE32</