/* main.c - Application main entry point */

/*
 * Copyright (c) 2016 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(net_test, CONFIG_NET_UTILS_LOG_LEVEL);

#include <zephyr/kernel.h>
#include <zephyr/ztest_assert.h>
#include <zephyr/types.h>
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <zephyr/device.h>
#include <zephyr/init.h>
#include <zephyr/sys/printk.h>
#include <zephyr/net/net_core.h>
#include <zephyr/net/net_ip.h>
#include <zephyr/net/ethernet.h>
#include <zephyr/linker/sections.h>

#include <zephyr/tc_util.h>
#include <zephyr/ztest.h>

#define NET_LOG_ENABLED 1
#include "net_private.h"

struct net_addr_test_data {
	sa_family_t family;
	bool pton;

	struct {
		char c_addr[16];
		char c_verify[16];
		struct in_addr addr;
		struct in_addr verify;
	} ipv4;

	struct {
		char c_addr[46];
		char c_verify[46];
		struct in6_addr addr;
		struct in6_addr verify;
	} ipv6;
};

static ZTEST_DMEM struct net_addr_test_data ipv4_pton_1 = {
	.family = AF_INET,
	.pton = true,
	.ipv4.c_addr = "192.0.0.1",
	.ipv4.verify.s4_addr = { 192, 0, 0, 1 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_pton_2 = {
	.family = AF_INET,
	.pton = true,
	.ipv4.c_addr = "192.1.0.0",
	.ipv4.verify.s4_addr = { 192, 1, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_pton_3 = {
	.family = AF_INET,
	.pton = true,
	.ipv4.c_addr = "192.0.0.0",
	.ipv4.verify.s4_addr = { 192, 0, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_pton_4 = {
	.family = AF_INET,
	.pton = true,
	.ipv4.c_addr = "255.255.255.255",
	.ipv4.verify.s4_addr = { 255, 255, 255, 255 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_pton_5 = {
	.family = AF_INET,
	.pton = true,
	.ipv4.c_addr = "0.0.0.0",
	.ipv4.verify.s4_addr = { 0, 0, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_pton_6 = {
	.family = AF_INET,
	.pton = true,
	.ipv4.c_addr = "0.0.0.1",
	.ipv4.verify.s4_addr = { 0, 0, 0, 1 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_pton_7 = {
	.family = AF_INET,
	.pton = true,
	.ipv4.c_addr = "0.0.1.0",
	.ipv4.verify.s4_addr = { 0, 0, 1, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_pton_8 = {
	.family = AF_INET,
	.pton = true,
	.ipv4.c_addr = "0.1.0.0",
	.ipv4.verify.s4_addr = { 0, 1, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_pton_1 = {
	.family = AF_INET6,
	.pton = true,
	.ipv6.c_addr = "ff08::",
	.ipv6.verify.s6_addr16 = { htons(0xff08), 0, 0, 0, 0, 0, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_pton_2 = {
	.family = AF_INET6,
	.pton = true,
	.ipv6.c_addr = "::",
	.ipv6.verify.s6_addr16 = { 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_pton_3 = {
	.family = AF_INET6,
	.pton = true,
	.ipv6.c_addr = "ff08::1",
	.ipv6.verify.s6_addr16 = { htons(0xff08), 0, 0, 0, 0, 0, 0, htons(1) },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_pton_4 = {
	.family = AF_INET6,
	.pton = true,
	.ipv6.c_addr = "2001:db8::1",
	.ipv6.verify.s6_addr16 = { htons(0x2001), htons(0xdb8),
				   0, 0, 0, 0, 0, htons(1) },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_pton_5 = {
	.family = AF_INET6,
	.pton = true,
	.ipv6.c_addr = "2001:db8::2:1",
	.ipv6.verify.s6_addr16 = { htons(0x2001), htons(0xdb8),
				   0, 0, 0, 0, htons(2), htons(1) },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_pton_6 = {
	.family = AF_INET6,
	.pton = true,
	.ipv6.c_addr = "ff08:1122:3344:5566:7788:9900:aabb:ccdd",
	.ipv6.verify.s6_addr16 = { htons(0xff08), htons(0x1122),
				   htons(0x3344), htons(0x5566),
				   htons(0x7788), htons(0x9900),
				   htons(0xaabb), htons(0xccdd) },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_pton_7 = {
	.family = AF_INET6,
	.pton = true,
	.ipv6.c_addr = "0:ff08::",
	.ipv6.verify.s6_addr16 = { 0, htons(0xff08), 0, 0, 0, 0, 0, 0 },
};

/* net_addr_ntop test cases */
static ZTEST_DMEM struct net_addr_test_data ipv4_ntop_1 = {
	.family = AF_INET,
	.pton = false,
	.ipv4.c_verify = "192.0.0.1",
	.ipv4.addr.s4_addr = { 192, 0, 0, 1 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_ntop_2 = {
	.family = AF_INET,
	.pton = false,
	.ipv4.c_verify = "192.1.0.0",
	.ipv4.addr.s4_addr = { 192, 1, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_ntop_3 = {
	.family = AF_INET,
	.pton = false,
	.ipv4.c_verify = "192.0.0.0",
	.ipv4.addr.s4_addr = { 192, 0, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_ntop_4 = {
	.family = AF_INET,
	.pton = false,
	.ipv4.c_verify = "255.255.255.255",
	.ipv4.addr.s4_addr = { 255, 255, 255, 255 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_ntop_5 = {
	.family = AF_INET,
	.pton = false,
	.ipv4.c_verify = "0.0.0.0",
	.ipv4.addr.s4_addr = { 0, 0, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_ntop_6 = {
	.family = AF_INET,
	.pton = false,
	.ipv4.c_verify = "0.0.0.1",
	.ipv4.addr.s4_addr = { 0, 0, 0, 1 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_ntop_7 = {
	.family = AF_INET,
	.pton = false,
	.ipv4.c_verify = "0.0.1.0",
	.ipv4.addr.s4_addr = { 0, 0, 1, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv4_ntop_8 = {
	.family = AF_INET,
	.pton = false,
	.ipv4.c_verify = "0.1.0.0",
	.ipv4.addr.s4_addr = { 0, 1, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_ntop_1 = {
	.family = AF_INET6,
	.pton = false,
	.ipv6.c_verify = "ff08::",
	.ipv6.addr.s6_addr16 = { htons(0xff08), 0, 0, 0, 0, 0, 0, 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_ntop_2 = {
	.family = AF_INET6,
	.pton = false,
	.ipv6.c_verify = "::",
	.ipv6.addr.s6_addr16 = { 0 },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_ntop_3 = {
	.family = AF_INET6,
	.pton = false,
	.ipv6.c_verify = "ff08::1",
	.ipv6.addr.s6_addr16 = { htons(0xff08), 0, 0, 0, 0, 0, 0, htons(1) },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_ntop_4 = {
	.family = AF_INET6,
	.pton = false,
	.ipv6.c_verify = "2001:db8::1",
	.ipv6.addr.s6_addr16 = { htons(0x2001), htons(0xdb8),
				 0, 0, 0, 0, 0, htons(1) },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_ntop_5 = {
	.family = AF_INET6,
	.pton = false,
	.ipv6.c_verify = "2001:db8::2:1",
	.ipv6.addr.s6_addr16 = { htons(0x2001), htons(0xdb8),
				 0, 0, 0, 0, htons(2), htons(1) },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_ntop_6 = {
	.family = AF_INET6,
	.pton = false,
	.ipv6.c_verify = "ff08:1122:3344:5566:7788:9900:aabb:ccdd",
	.ipv6.addr.s6_addr16 = { htons(0xff08), htons(0x1122),
				 htons(0x3344), htons(0x5566),
				 htons(0x7788), htons(0x9900),
				 htons(0xaabb), htons(0xccdd) },
};

static ZTEST_DMEM struct net_addr_test_data ipv6_ntop_7 = {
	.family = AF_INET6,
	.pton = false,
	.ipv6.c_verify = "0:ff08::",
	.ipv6.addr.s6_addr16 = { 0, htons(0xff08), 0, 0, 0, 0, 0, 0 },
};

static const struct {
	const char *name;
	struct net_addr_test_data *data;
} tests[] = {
	/* IPv4 net_addr_pton */
	{ "test_ipv4_pton_1", &ipv4_pton_1},
	{ "test_ipv4_pton_2", &ipv4_pton_2},
	{ "test_ipv4_pton_3", &ipv4_pton_3},
	{ "test_ipv4_pton_4", &ipv4_pton_4},
	{ "test_ipv4_pton_5", &ipv4_pton_5},
	{ "test_ipv4_pton_6", &ipv4_pton_6},
	{ "test_ipv4_pton_7", &ipv4_pton_7},
	{ "test_ipv4_pton_8", &ipv4_pton_8},

	/* IPv6 net_addr_pton */
	{ "test_ipv6_pton_1", &ipv6_pton_1},
	{ "test_ipv6_pton_2", &ipv6_pton_2},
	{ "test_ipv6_pton_3", &ipv6_pton_3},
	{ "test_ipv6_pton_4", &ipv6_pton_4},
	{ "test_ipv6_pton_5", &ipv6_pton_5},
	{ "test_ipv6_pton_6", &ipv6_pton_6},
	{ "test_ipv6_pton_7", &ipv6_pton_7},

	/* IPv4 net_addr_ntop */
	{ "test_ipv4_ntop_1", &ipv4_ntop_1},
	{ "test_ipv4_ntop_2", &ipv4_ntop_2},
	{ "test_ipv4_ntop_3", &ipv4_ntop_3},
	{ "test_ipv4_ntop_4", &ipv4_ntop_4},
	{ "test_ipv4_ntop_5", &ipv4_ntop_5},
	{ "test_ipv4_ntop_6", &ipv4_ntop_6},
	{ "test_ipv4_ntop_7", &ipv4_ntop_7},
	{ "test_ipv4_ntop_8", &ipv4_ntop_8},

	/* IPv6 net_addr_ntop */
	{ "test_ipv6_ntop_1", &ipv6_ntop_1},
	{ "test_ipv6_ntop_2", &ipv6_ntop_2},
	{ "test_ipv6_ntop_3", &ipv6_ntop_3},
	{ "test_ipv6_ntop_4", &ipv6_ntop_4},
	{ "test_ipv6_ntop_5", &ipv6_ntop_5},
	{ "test_ipv6_ntop_6", &ipv6_ntop_6},
	{ "test_ipv6_ntop_7", &ipv6_ntop_7},
};

static bool check_net_addr(struct net_addr_test_data *data)
{
	switch (data->family) {
	case AF_INET:
		if (data->pton) {
			if (net_addr_pton(AF_INET, (char *)data->ipv4.c_addr,
					  &data->ipv4.addr) < 0) {
				printk("Failed to convert %s\n",
				       data->ipv4.c_addr);

				return false;
			}

			if (!net_ipv4_addr_cmp(&data->ipv4.addr,
					       &data->ipv4.verify)) {
				printk("Failed to verify %s\n",
				       data->ipv4.c_addr);

				return false;
			}
		} else {
			if (!net_addr_ntop(AF_INET, &data->ipv4.addr,
					   data->ipv4.c_addr,
					   sizeof(data->ipv4.c_addr))) {
				printk("Failed to convert %s\n",
				       net_sprint_ipv4_addr(&data->ipv4.addr));

				return false;
			}

			if (strcmp(data->ipv4.c_addr, data->ipv4.c_verify)) {
				printk("Failed to verify %s\n",
				       data->ipv4.c_addr);
				printk("against %s\n",
				       data->ipv4.c_verify);

				return false;
			}
		}

		break;

	case AF_INET6:
		if (data->pton) {
			if (net_addr_pton(AF_INET6, (char *)data->ipv6.c_addr,
					  &data->ipv6.addr) < 0) {
				printk("Failed to convert %s\n",
				       data->ipv6.c_addr);

				return false;
			}

			if (!net_ipv6_addr_cmp(&data->ipv6.addr,
					       &data->ipv6.verify)) {
				printk("Failed to verify %s\n",
				       net_sprint_ipv6_addr(&data->ipv6.addr));
				printk("against %s\n",
				       net_sprint_ipv6_addr(
							&data->ipv6.verify));

				return false;
			}
		} else {
			if (!net_addr_ntop(AF_INET6, &data->ipv6.addr,
					   data->ipv6.c_addr,
					   sizeof(data->ipv6.c_addr))) {
				printk("Failed to convert %s\n",
				       net_sprint_ipv6_addr(&data->ipv6.addr));

				return false;
			}

			if (strcmp(data->ipv6.c_addr, data->ipv6.c_verify)) {
				printk("Failed to verify %s\n",
				       data->ipv6.c_addr);
				printk("against %s\n",
				       data->ipv6.c_verify);

				return false;
			}

		}

		break;
	}

	return true;
}

ZTEST(test_utils_fn, test_net_addr)
{
	int count, pass;

	for (count = 0, pass = 0; count < ARRAY_SIZE(tests); count++) {
		TC_PRINT("Running test: %s: ", tests[count].name);

		if (check_net_addr(tests[count].data)) {
			TC_PRINT("passed\n");
			pass++;
		} else {
			TC_PRINT("failed\n");
		}
	}

	zassert_equal(pass, ARRAY_SIZE(tests), "check_net_addr error");
}

ZTEST(test_utils_fn, test_addr_parse)
{
	struct sockaddr addr;
	bool ret;
	int i;
#if defined(CONFIG_NET_IPV4)
	static const struct {
		const char *address;
		int len;
		struct sockaddr_in result;
		bool verdict;
	} parse_ipv4_entries[] = {
		{
			.address = "192.0.2.1:80",
			.len = sizeof("192.0.2.1:80") - 1,
			.result = {
				.sin_family = AF_INET,
				.sin_port = htons(80),
				.sin_addr = {
					.s4_addr[0] = 192,
					.s4_addr[1] = 0,
					.s4_addr[2] = 2,
					.s4_addr[3] = 1
				}
			},
			.verdict = true
		},
		{
			.address = "192.0.2.2",
			.len = sizeof("192.0.2.2") - 1,
			.result = {
				.sin_family = AF_INET,
				.sin_port = 0,
				.sin_addr = {
					.s4_addr[0] = 192,
					.s4_addr[1] = 0,
					.s4_addr[2] = 2,
					.s4_addr[3] = 2
				}
			},
			.verdict = true
		},
		{
			.address = "192.0.2.3/foobar",
			.len = sizeof("192.0.2.3/foobar") - 8,
			.result = {
				.sin_family = AF_INET,
				.sin_port = 0,
				.sin_addr = {
					.s4_addr[0] = 192,
					.s4_addr[1] = 0,
					.s4_addr[2] = 2,
					.s4_addr[3] = 3
				}
			},
			.verdict = true
		},
		{
			.address = "255.255.255.255:0",
			.len = sizeof("255.255.255.255:0") - 1,
			.result = {
				.sin_family = AF_INET,
				.sin_port = 0,
				.sin_addr = {
					.s4_addr[0] = 255,
					.s4_addr[1] = 255,
					.s4_addr[2] = 255,
					.s4_addr[3] = 255
				}
			},
			.verdict = true
		},
		{
			.address = "127.0.0.42:65535",
			.len = sizeof("127.0.0.42:65535") - 1,
			.result = {
				.sin_family = AF_INET,
				.sin_port = htons(65535),
				.sin_addr = {
					.s4_addr[0] = 127,
					.s4_addr[1] = 0,
					.s4_addr[2] = 0,
					.s4_addr[3] = 42
				}
			},
			.verdict = true
		},
		{
			.address = "192.0.2.3:80/foobar",
			.len = sizeof("192.0.2.3:80/foobar") - 1,
			.verdict = false
		},
		{
			.address = "192.168.1.1:65536/foobar",
			.len = sizeof("192.168.1.1:65536") - 1,
			.verdict = false
		},
		{
			.address = "192.0.2.3:80/foobar",
			.len = sizeof("192.0.2.3") - 1,
			.result = {
				.sin_family = AF_INET,
				.sin_port = 0,
				.sin_addr = {
					.s4_addr[0] = 192,
					.s4_addr[1] = 0,
					.s4_addr[2] = 2,
					.s4_addr[3] = 3
				}
			},
			.verdict = true
		},
		{
			.address = "192.0.2.3:80/foobar",
			.len = sizeof("192.0.2.3:80") - 1,
			.result = {
				.sin_family = AF_INET,
				.sin_port = htons(80),
				.sin_addr = {
					.s4_addr[0] = 192,
					.s4_addr[1] = 0,
					.s4_addr[2] = 2,
					.s4_addr[3] = 3
				}
			},
			.verdict = true
		},
		{
			.address = "192.0.2.3/foobar",
			.len = sizeof("192.0.2.3/foobar") - 1,
			.verdict = false
		},
		{
			.address = "192.0.2.3:80:80",
			.len = sizeof("192.0.2.3:80:80") - 1,
			.verdict = false
		},
		{
			.address = "192.0.2.1:80000",
			.len = sizeof("192.0.2.1:80000") - 1,
			.verdict = false
		},
		{
			.address = "192.168.0.1",
			.len = sizeof("192.168.0.1:80000") - 1,
			.result = {
				.sin_family = AF_INET,
				.sin_port = 0,
				.sin_addr = {
					.s4_addr[0] = 192,
					.s4_addr[1] = 168,
					.s4_addr[2] = 0,
					.s4_addr[3] = 1
				}
			},
			.verdict = true
		},
		{
			.address = "a.b.c.d",
			.verdict = false
		},
	};
#endif
#if defined(CONFIG_NET_IPV6)
	static const struct {
		const char *address;
		int len;
		struct sockaddr_in6 result;
		bool verdict;
	} parse_ipv6_entries[] = {
		{
			.address = "[2001:db8::2]:80",
			.len = sizeof("[2001:db8::2]:80") - 1,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = htons(80),
				.sin6_addr = {
					.s6_addr16[0] = ntohs(0x2001),
					.s6_addr16[1] = ntohs(0xdb8),
					.s6_addr16[3] = 0,
					.s6_addr16[4] = 0,
					.s6_addr16[5] = 0,
					.s6_addr16[6] = 0,
					.s6_addr16[7] = ntohs(2)
				}
			},
			.verdict = true
		},
		{
			.address = "[2001:db8::a]/barfoo",
			.len = sizeof("[2001:db8::a]/barfoo") - 8,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = 0,
				.sin6_addr = {
					.s6_addr16[0] = ntohs(0x2001),
					.s6_addr16[1] = ntohs(0xdb8),
					.s6_addr16[3] = 0,
					.s6_addr16[4] = 0,
					.s6_addr16[5] = 0,
					.s6_addr16[6] = 0,
					.s6_addr16[7] = ntohs(0xa)
				}
			},
			.verdict = true
		},
		{
			.address = "[2001:db8::a]",
			.len = sizeof("[2001:db8::a]") - 1,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = 0,
				.sin6_addr = {
					.s6_addr16[0] = ntohs(0x2001),
					.s6_addr16[1] = ntohs(0xdb8),
					.s6_addr16[3] = 0,
					.s6_addr16[4] = 0,
					.s6_addr16[5] = 0,
					.s6_addr16[6] = 0,
					.s6_addr16[7] = ntohs(0xa)
				}
			},
			.verdict = true
		},
		{
			.address = "[2001:db8:3:4:5:6:7:8]:65535",
			.len = sizeof("[2001:db8:3:4:5:6:7:8]:65535") - 1,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = 65535,
				.sin6_addr = {
					.s6_addr16[0] = ntohs(0x2001),
					.s6_addr16[1] = ntohs(0xdb8),
					.s6_addr16[2] = ntohs(3),
					.s6_addr16[3] = ntohs(4),
					.s6_addr16[4] = ntohs(5),
					.s6_addr16[5] = ntohs(6),
					.s6_addr16[6] = ntohs(7),
					.s6_addr16[7] = ntohs(8),
				}
			},
			.verdict = true
		},
		{
			.address = "[::]:0",
			.len = sizeof("[::]:0") - 1,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = 0,
				.sin6_addr = {
					.s6_addr16[0] = 0,
					.s6_addr16[1] = 0,
					.s6_addr16[2] = 0,
					.s6_addr16[3] = 0,
					.s6_addr16[4] = 0,
					.s6_addr16[5] = 0,
					.s6_addr16[6] = 0,
					.s6_addr16[7] = 0,
				}
			},
			.verdict = true
		},
		{
			.address = "2001:db8::42",
			.len = sizeof("2001:db8::42") - 1,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = 0,
				.sin6_addr = {
					.s6_addr16[0] = ntohs(0x2001),
					.s6_addr16[1] = ntohs(0xdb8),
					.s6_addr16[3] = 0,
					.s6_addr16[4] = 0,
					.s6_addr16[5] = 0,
					.s6_addr16[6] = 0,
					.s6_addr16[7] = ntohs(0x42)
				}
			},
			.verdict = true
		},
		{
			.address = "[2001:db8::192.0.2.1]:80000",
			.len = sizeof("[2001:db8::192.0.2.1]:80000") - 1,
			.verdict = false
		},
		{
			.address = "[2001:db8::1]:80",
			.len = sizeof("[2001:db8::1") - 1,
			.verdict = false
		},
		{
			.address = "[2001:db8::1]:65536",
			.len = sizeof("[2001:db8::1]:65536") - 1,
			.verdict = false
		},
		{
			.address = "[2001:db8::1]:80",
			.len = sizeof("2001:db8::1") - 1,
			.verdict = false
		},
		{
			.address = "[2001:db8::1]:a",
			.len = sizeof("[2001:db8::1]:a") - 1,
			.verdict = false
		},
		{
			.address = "[2001:db8::1]:10-12",
			.len = sizeof("[2001:db8::1]:10-12") - 1,
			.verdict = false
		},
		{
			.address = "[2001:db8::]:80/url/continues",
			.len = sizeof("[2001:db8::]") - 1,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = 0,
				.sin6_addr = {
					.s6_addr16[0] = ntohs(0x2001),
					.s6_addr16[1] = ntohs(0xdb8),
					.s6_addr16[3] = 0,
					.s6_addr16[4] = 0,
					.s6_addr16[5] = 0,
					.s6_addr16[6] = 0,
					.s6_addr16[7] = 0,
				}
			},
			.verdict = true
		},
		{
			.address = "[2001:db8::200]:080",
			.len = sizeof("[2001:db8:433:2]:80000") - 1,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = htons(80),
				.sin6_addr = {
					.s6_addr16[0] = ntohs(0x2001),
					.s6_addr16[1] = ntohs(0xdb8),
					.s6_addr16[3] = 0,
					.s6_addr16[4] = 0,
					.s6_addr16[5] = 0,
					.s6_addr16[6] = 0,
					.s6_addr16[7] = ntohs(0x200)
				}
			},
			.verdict = true
		},
		{
			.address = "[2001:db8::]:8080/another/url",
			.len = sizeof("[2001:db8::]:8080/another/url") - 1,
			.verdict = false
		},
		{
			.address = "[2001:db8::1",
			.len = sizeof("[2001:db8::1") - 1,
			.verdict = false
		},
		{
			.address = "[2001:db8::1]:-1",
			.len = sizeof("[2001:db8::1]:-1") - 1,
			.verdict = false
		},
		{
			/* Valid although user probably did not mean this */
			.address = "2001:db8::1:80",
			.len = sizeof("2001:db8::1:80") - 1,
			.result = {
				.sin6_family = AF_INET6,
				.sin6_port = 0,
				.sin6_addr = {
					.s6_addr16[0] = ntohs(0x2001),
					.s6_addr16[1] = ntohs(0xdb8),
					.s6_addr16[3] = 0,
					.s6_addr16[4] = 0,
					.s6_addr16[5] = 0,
					.s6_addr16[6] = ntohs(0x01),
					.s6_addr16[7] = ntohs(0x80)
				}
			},
			.verdict = true
		},
	};
#endif

#if defined(CONFIG_NET_IPV4)
	for (i = 0; i < ARRAY_SIZE(parse_ipv4_entries) - 1; i++) {
		(void)memset(&addr, 0, sizeof(addr));

		ret = net_ipaddr_parse(
			parse_ipv4_entries[i].address,
			parse_ipv4_entries[i].len,
			&addr);
		if (ret != parse_ipv4_entries[i].verdict) {
			printk("IPv4 entry [%d] \"%s\" failed\n", i,
				parse_ipv4_entries[i].address);
			zassert_true(false, "failure");
		}

		if (ret == true) {
			zassert_true(
				net_ipv4_addr_cmp(
				      &net_sin(&addr)->sin_addr,
				      &parse_ipv4_entries[i].result.sin_addr),
				parse_ipv4_entries[i].address);
			zassert_true(net_sin(&addr)->sin_port ==
				     parse_ipv4_entries[i].result.sin_port,
				     "IPv4 port");
			zassert_true(net_sin(&addr)->sin_family ==
				     parse_ipv4_entries[i].result.sin_family,
				     "IPv4 family");
		}
	}
#endif
#if defined(CONFIG_NET_IPV6)
	for (i = 0; i < ARRAY_SIZE(parse_ipv6_entries) - 1; i++) {
		(void)memset(&addr, 0, sizeof(addr));

		ret = net_ipaddr_parse(
			parse_ipv6_entries[i].address,
			parse_ipv6_entries[i].len,
			&addr);
		if (ret != parse_ipv6_entries[i].verdict) {
			printk("IPv6 entry [%d] \"%s\" failed\n", i,
			       parse_ipv6_entries[i].address);
			zassert_true(false, "failure");
		}

		if (ret == true) {
			zassert_true(
				net_ipv6_addr_cmp(
				      &net_sin6(&addr)->sin6_addr,
				      &parse_ipv6_entries[i].result.sin6_addr),
				parse_ipv6_entries[i].address);
			zassert_true(net_sin6(&addr)->sin6_port ==
				     parse_ipv6_entries[i].result.sin6_port,
				     "IPv6 port");
			zassert_true(net_sin6(&addr)->sin6_family ==
				     parse_ipv6_entries[i].result.sin6_family,
				     "IPv6 family");
		}
	}
#endif
}

static uint16_t calc_chksum_ref(uint16_t sum, const uint8_t *data, size_t len)
{
	const uint8_t *end;
	uint16_t tmp;

	end = data + len - 1;

	while (data < end) {
		tmp = (data[0] << 8) + data[1];
		sum += tmp;
		if (sum < tmp) {
			sum++;
		}

		data += 2;
	}

	if (data == end) {
		tmp = data[0] << 8;
		sum += tmp;
		if (sum < tmp) {
			sum++;
		}
	}

	return sum;
}

#define CHECKSUM_TEST_LENGTH 1500

uint8_t testdata[CHECKSUM_TEST_LENGTH];

ZTEST(test_utils_fn, test_ip_checksum)
{
	uint16_t sum_got;
	uint16_t sum_exp;

	/* Simple test dataset */
	for (int i = 0; i < CHECKSUM_TEST_LENGTH; i++) {
		testdata[i] = (uint8_t)i;
	}

	for (int i = 1; i <= CHECKSUM_TEST_LENGTH; i++) {
		sum_got = calc_chksum_ref(i ^ 0x1f13, testdata, i);
		sum_exp = calc_chksum(i ^ 0x1f13, testdata, i);

		zassert_equal(sum_got, sum_exp,
			      "Mismatch between reference and calculated checksum 1\n");
	}

	/* Create a different patten in the data */
	for (int i = 0; i < CHECKSUM_TEST_LENGTH; i++) {
		testdata[i] = (uint8_t)(i + 13) * 17;
	}

	for (int i = 1; i <= CHECKSUM_TEST_LENGTH; i++) {
		sum_got = calc_chksum_ref(i ^ 0x1f13, testdata + (CHECKSUM_TEST_LENGTH - i), i);
		sum_exp = calc_chksum(i ^ 0x1f13, testdata + (CHECKSUM_TEST_LENGTH - i), i);

		zassert_equal(sum_got, sum_exp,
			      "Mismatch between reference and calculated checksum 2\n");
	}

	/* Work across all possible combination so offset and length */
	for (int offset = 0; offset < 7; offset++) {
		for (int length = 1; length < 32; length++) {
			sum_got = calc_chksum_ref(offset ^ 0x8e72, testdata + offset, length);
			sum_exp = calc_chksum(offset ^ 0x8e72, testdata + offset, length);

			zassert_equal(sum_got, sum_exp,
				      "Mismatch between reference and calculated checksum 3\n");
		}
	}
}

ZTEST_SUITE(test_utils_fn, NULL, NULL, NULL, NULL, NULL);