// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <string.h>

#include <ynl.h>

#include <arpa/inet.h>
#include <net/if.h>

#include <kselftest_harness.h>

#include "rt-addr-user.h"

static void rt_addr_print(struct __test_metadata *_metadata,
			  struct rt_addr_getaddr_rsp *a)
{
	char ifname[IF_NAMESIZE];
	char addr_str[64];
	const char *addr;
	const char *name;

	name = if_indextoname(a->_hdr.ifa_index, ifname);
	EXPECT_NE(NULL, name);
	if (name)
		ksft_print_msg("%16s: ", name);

	EXPECT_TRUE(a->_len.address == 4 || a->_len.address == 16);
	switch (a->_len.address) {
	case 4:
		addr = inet_ntop(AF_INET, a->address,
				 addr_str, sizeof(addr_str));
		break;
	case 16:
		addr = inet_ntop(AF_INET6, a->address,
				 addr_str, sizeof(addr_str));
		break;
	default:
		addr = NULL;
		break;
	}
	if (addr)
		printf("%s", addr);
	else
		printf("[%d]", a->_len.address);

	printf("\n");
}

FIXTURE(rt_addr)
{
	struct ynl_sock *ys;
};

FIXTURE_SETUP(rt_addr)
{
	struct ynl_error yerr;

	self->ys = ynl_sock_create(&ynl_rt_addr_family, &yerr);
	ASSERT_NE(NULL, self->ys)
		TH_LOG("failed to create rt-addr socket: %s", yerr.msg);
}

FIXTURE_TEARDOWN(rt_addr)
{
	ynl_sock_destroy(self->ys);
}

TEST_F(rt_addr, dump)
{
	struct rt_addr_getaddr_list *rsp;
	struct rt_addr_getaddr_req *req;
	struct in6_addr v6_expected;
	struct in_addr v4_expected;
	bool found_v4 = false;
	bool found_v6 = false;

	/* The bash wrapper for this test adds these addresses on nsim0,
	 * make sure we can find them in the dump.
	 */
	inet_pton(AF_INET, "192.168.1.1", &v4_expected);
	inet_pton(AF_INET6, "2001:db8::1", &v6_expected);

	req = rt_addr_getaddr_req_alloc();
	ASSERT_NE(NULL, req);

	rsp = rt_addr_getaddr_dump(self->ys, req);
	rt_addr_getaddr_req_free(req);
	ASSERT_NE(NULL, rsp) {
		TH_LOG("dump failed: %s", self->ys->err.msg);
	}

	ASSERT_FALSE(ynl_dump_empty(rsp)) {
		rt_addr_getaddr_list_free(rsp);
		TH_LOG("no addresses reported");
	}

	ynl_dump_foreach(rsp, addr) {
		rt_addr_print(_metadata, addr);

		found_v4 |= addr->_len.address == 4 &&
			    !memcmp(addr->address, &v4_expected, 4);
		found_v6 |= addr->_len.address == 16 &&
			    !memcmp(addr->address, &v6_expected, 16);
	}
	rt_addr_getaddr_list_free(rsp);

	EXPECT_TRUE(found_v4);
	EXPECT_TRUE(found_v6);
}

TEST_HARNESS_MAIN