/*
 * tests/check-addr.c		nl_addr unit tests
 *
 *	This library is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU Lesser General Public
 *	License as published by the Free Software Foundation version 2.1
 *	of the License.
 *
 * Copyright (c) 2013 Thomas Graf <tgraf@suug.ch>
 */

#include <check.h>
#include <netlink/addr.h>

#include "util.h"

START_TEST(addr_alloc)
{
	struct nl_addr *addr;

	addr = nl_addr_alloc(16);
	fail_if(addr == NULL,
		"Allocation should not return NULL");

	fail_if(nl_addr_iszero(addr) == 0,
		"New empty address should be all zeros");

	fail_if(nl_addr_get_family(addr) != AF_UNSPEC,
		"New empty address should have family AF_UNSPEC");

	fail_if(nl_addr_get_prefixlen(addr) != 0,
		"New empty address should have prefix length 0");

	fail_if(nl_addr_shared(addr),
		"New empty address should not be shared");

	fail_if(nl_addr_get(addr) != addr,
		"nl_addr_get() should return pointer to address");

	fail_if(nl_addr_shared(addr) == 0,
		"Address should be shared after call to nl_addr_get()");

	nl_addr_put(addr);

	fail_if(nl_addr_shared(addr),
		"Address should not be shared after call to nl_addr_put()");

	fail_if(nl_addr_fill_sockaddr(addr, NULL, 0) == 0,
		"Socket address filling should fail for empty address");

	nl_addr_put(addr);
}
END_TEST

START_TEST(addr_binary_addr)
{
	struct nl_addr *addr, *addr2;
	char baddr[4] = { 0x1, 0x2, 0x3, 0x4 };
	char baddr2[6] = { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6 };

	addr = nl_addr_alloc(4);
	fail_if(addr == NULL,
		"Allocation should not return NULL");

	fail_if(nl_addr_set_binary_addr(addr, baddr, 4) < 0,
		"Valid binary address should be settable");

	fail_if(nl_addr_get_prefixlen(addr) != 0,
		"Prefix length should be unchanged after nl_addr_set_binary_addr()");

	fail_if(nl_addr_get_len(addr) != 4,
		"Address length should be 4");

	fail_if(nl_addr_set_binary_addr(addr, baddr2, 6) == 0,
		"Should not be able to set binary address exceeding maximum length");

	fail_if(nl_addr_get_len(addr) != 4,
		"Address length should still be 4");

	fail_if(nl_addr_guess_family(addr) != AF_INET,
		"Binary address of length 4 should be guessed as AF_INET");

	fail_if(memcmp(baddr, nl_addr_get_binary_addr(addr), 4) != 0,
		"Binary address mismatches");

	addr2 = nl_addr_build(AF_UNSPEC, baddr, 4);
	fail_if(addr2 == NULL,
		"Building of address should not fail");

	nl_addr_set_prefixlen(addr, 32);
	fail_if(nl_addr_get_prefixlen(addr) != 32,
		"Prefix length should be successful changed after nl_addr_set_prefixlen()");

	fail_if(nl_addr_cmp(addr, addr2),
		"Addresses built from same binary address should match");

	nl_addr_put(addr);
	nl_addr_put(addr2);
}
END_TEST

START_TEST(addr_parse4)
{
	struct nl_addr *addr4, *clone;
	struct sockaddr_in sin;
	socklen_t len = sizeof(sin);
	char *addr_str = "10.0.0.1/16";
	char buf[128];

	fail_if(nl_addr_parse(addr_str, AF_INET6, &addr4) == 0,
		"Should not be able to parse IPv4 address in IPv6 mode");

	fail_if(nl_addr_parse(addr_str, AF_UNSPEC, &addr4) != 0,
		"Should be able to parse \"%s\"", addr_str);

	fail_if(nl_addr_get_family(addr4) != AF_INET,
		"Address family should be AF_INET");

	fail_if(nl_addr_get_prefixlen(addr4) != 16,
		"Prefix length should be 16");

	fail_if(nl_addr_iszero(addr4),
		"Address should not be all zeroes");

	clone = nl_addr_clone(addr4);
	fail_if(clone == NULL,
		"Cloned address should not be NULL");

	fail_if(nl_addr_cmp(addr4, clone) != 0,
		"Cloned address should not mismatch original");

	fail_if(nl_addr_fill_sockaddr(addr4, (struct sockaddr *) &sin, &len) != 0,
		"Should be able to fill socketaddr");

	fail_if(strcmp(nl_addr2str(addr4, buf, sizeof(buf)), addr_str),
		"Address translated back to string does not match original");

	nl_addr_put(addr4);
	nl_addr_put(clone);
}
END_TEST

START_TEST(addr_parse6)
{
	struct nl_addr *addr6, *clone;
	struct sockaddr_in6 sin;
	socklen_t len = sizeof(sin);
	char *addr_str = "2001:1:2::3/64";
	char buf[128];

	fail_if(nl_addr_parse(addr_str, AF_INET, &addr6) == 0,
		"Should not be able to parse IPv6 address in IPv4 mode");

	fail_if(nl_addr_parse(addr_str, AF_UNSPEC, &addr6) != 0,
		"Should be able to parse \"%s\"", addr_str);

	fail_if(nl_addr_get_family(addr6) != AF_INET6,
		"Address family should be AF_INET6");

	fail_if(nl_addr_get_prefixlen(addr6) != 64,
		"Prefix length should be 64");

	fail_if(nl_addr_iszero(addr6),
		"Address should not be all zeroes");

	clone = nl_addr_clone(addr6);
	fail_if(clone == NULL,
		"Cloned address should not be NULL");

	fail_if(nl_addr_cmp(addr6, clone) != 0,
		"Cloned address should not mismatch original");

	fail_if(nl_addr_fill_sockaddr(addr6, (struct sockaddr *) &sin, &len) != 0,
		"Should be able to fill socketaddr");

	fail_if(strcmp(nl_addr2str(addr6, buf, sizeof(buf)), addr_str),
		"Address translated back to string does not match original");

	nl_addr_put(addr6);
	nl_addr_put(clone);
}
END_TEST

START_TEST(addr_info)
{
	struct nl_addr *addr;
	char *addr_str = "127.0.0.1";
	struct addrinfo *result;

	fail_if(nl_addr_parse(addr_str, AF_UNSPEC, &addr) != 0,
		"Parsing of valid address should not fail");

	fail_if(nl_addr_info(addr, &result) != 0,
		"getaddrinfo() on loopback address should work");

	freeaddrinfo(result);
	nl_addr_put(addr);
}
END_TEST

Suite *make_nl_addr_suite(void)
{
	Suite *suite = suite_create("Abstract addresses");

	TCase *tc_addr = tcase_create("Core");
	tcase_add_test(tc_addr, addr_alloc);
	tcase_add_test(tc_addr, addr_binary_addr);
	tcase_add_test(tc_addr, addr_parse4);
	tcase_add_test(tc_addr, addr_parse6);
	tcase_add_test(tc_addr, addr_info);
	suite_add_tcase(suite, tc_addr);

	return suite;
}