tests/net/ethernet_mgmt/src/main.c

/*
 * Copyright (c) 2018 Intel Corporation.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr.h>

#include <net/net_if.h>
#include <net/ethernet.h>
#include <net/ethernet_mgmt.h>

#include <ztest.h>

static const u8_t mac_addr_init[6] = { 0x01, 0x02, 0x03,
				       0x04,  0x05,  0x06 };

static const u8_t mac_addr_change[6] = { 0x01, 0x02, 0x03,
					 0x04,  0x05,  0x07 };

struct eth_fake_context {
	struct net_if *iface;
	u8_t mac_address[6];

	bool auto_negotiation;
	bool full_duplex;
	bool link_10bt;
	bool link_100bt;
};

static struct eth_fake_context eth_fake_data;

static void eth_fake_iface_init(struct net_if *iface)
{
	struct device *dev = net_if_get_device(iface);
	struct eth_fake_context *ctx = dev->driver_data;

	ctx->iface = iface;

	net_if_set_link_addr(iface, ctx->mac_address,
			     sizeof(ctx->mac_address),
			     NET_LINK_ETHERNET);

	ethernet_init(iface);
}

static int eth_fake_send(struct net_if *iface,
			 struct net_pkt *pkt)
{
	ARG_UNUSED(iface);

	net_pkt_unref(pkt);

	return 0;
}

static enum ethernet_hw_caps eth_fake_get_capabilities(struct device *dev)
{
	return ETHERNET_AUTO_NEGOTIATION_SET | ETHERNET_LINK_10BASE_T |
		ETHERNET_LINK_100BASE_T | ETHERNET_DUPLEX_SET;
}

static int eth_fake_set_config(struct device *dev,
			       enum ethernet_config_type type,
			       const struct ethernet_config *config)
{
	struct eth_fake_context *ctx = dev->driver_data;

	switch (type) {
	case ETHERNET_CONFIG_TYPE_AUTO_NEG:
		if (config->auto_negotiation == ctx->auto_negotiation) {
			return -EALREADY;
		}

		ctx->auto_negotiation = config->auto_negotiation;

		break;
	case ETHERNET_CONFIG_TYPE_LINK:
		if ((config->l.link_10bt && ctx->link_10bt) ||
		    (config->l.link_100bt && ctx->link_100bt)) {
			return -EALREADY;
		}

		if (config->l.link_10bt) {
			ctx->link_10bt = true;
			ctx->link_100bt = false;
		} else {
			ctx->link_10bt = false;
			ctx->link_100bt = true;
		}

		break;
	case ETHERNET_CONFIG_TYPE_DUPLEX:
		if (config->full_duplex == ctx->full_duplex) {
			return -EALREADY;
		}

		ctx->full_duplex = config->full_duplex;

		break;
	case ETHERNET_CONFIG_TYPE_MAC_ADDRESS:
		memcpy(ctx->mac_address, config->mac_address.addr, 6);

		net_if_set_link_addr(ctx->iface, ctx->mac_address,
				     sizeof(ctx->mac_address),
				     NET_LINK_ETHERNET);
		break;
	}

	return 0;
}

static struct ethernet_api eth_fake_api_funcs = {
	.iface_api.init = eth_fake_iface_init,
	.iface_api.send = eth_fake_send,

	.get_capabilities = eth_fake_get_capabilities,
	.set_config = eth_fake_set_config,
};

static int eth_fake_init(struct device *dev)
{
	struct eth_fake_context *ctx = dev->driver_data;

	ctx->auto_negotiation = true;
	ctx->full_duplex = true;
	ctx->link_10bt = true;
	ctx->link_100bt = false;

	memcpy(ctx->mac_address, mac_addr_init, 6);

	return 0;
}

ETH_NET_DEVICE_INIT(eth_fake, "eth_fake", eth_fake_init, &eth_fake_data,
		    NULL, CONFIG_ETH_INIT_PRIORITY, &eth_fake_api_funcs, 1500);

static void test_change_mac_when_up(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params;
	int ret;

	memcpy(params.mac_address.addr, mac_addr_change, 6);

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_MAC_ADDRESS, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_not_equal(ret, 0,
			  "mac address change should not be possible\n");
}

static void test_change_mac_when_down(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params;
	int ret;

	memcpy(params.mac_address.addr, mac_addr_change, 6);

	net_if_down(iface);

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_MAC_ADDRESS, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_equal(ret, 0, "unable to change mac address\n");

	ret = memcmp(net_if_get_link_addr(iface)->addr, mac_addr_change,
		     sizeof(mac_addr_change));

	zassert_equal(ret, 0, "invalid mac address change\n");

	net_if_up(iface);
}

static void test_change_auto_neg(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params;
	int ret;

	params.auto_negotiation = false;

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_AUTO_NEGOTIATION, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_equal(ret, 0, "invalid auto negotiation change\n");
}

static void test_change_to_same_auto_neg(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params;
	int ret;

	params.auto_negotiation = false;

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_AUTO_NEGOTIATION, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_not_equal(ret, 0,
			  "invalid change to already auto negotiation\n");
}

static void test_change_link(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params = { 0 };
	int ret;

	params.l.link_100bt = true;

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_LINK, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_equal(ret, 0, "invalid link change\n");
}

static void test_change_same_link(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params = { 0 };
	int ret;

	params.l.link_100bt = true;

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_LINK, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_not_equal(ret, 0, "invalid same link change\n");
}

static void test_change_unsupported_link(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params = { 0 };
	int ret;

	params.l.link_1000bt = true;

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_LINK, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_not_equal(ret, 0, "invalid change to unsupported link\n");
}

static void test_change_duplex(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params;
	int ret;

	params.full_duplex = false;

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_DUPLEX, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_equal(ret, 0, "invalid duplex change\n");
}

static void test_change_same_duplex(void)
{
	struct net_if *iface = net_if_get_default();
	struct ethernet_req_params params;
	int ret;

	params.full_duplex = false;

	ret = net_mgmt(NET_REQUEST_ETHERNET_SET_DUPLEX, iface,
		       &params, sizeof(struct ethernet_req_params));

	zassert_not_equal(ret, 0, "invalid change to already set duplex\n");
}

void test_main(void)
{
	ztest_test_suite(ethernet_mgmt_test,
			 ztest_unit_test(test_change_mac_when_up),
			 ztest_unit_test(test_change_mac_when_down),
			 ztest_unit_test(test_change_auto_neg),
			 ztest_unit_test(test_change_to_same_auto_neg),
			 ztest_unit_test(test_change_link),
			 ztest_unit_test(test_change_same_link),
			 ztest_unit_test(test_change_unsupported_link),
			 ztest_unit_test(test_change_duplex),
			 ztest_unit_test(test_change_same_duplex));

	ztest_run_test_suite(ethernet_mgmt_test);
}