292808246d
The in_cksum tests originally tried to simulate a BE environment by swapping the byte order of the input. But that's overcomplicated, and didn't actually work on real BE hardware. The correct testing strategy is just to test on the native endianness, and run the tests in both BE and LE environments. Submitted by: Renato Riolino <renato.riolino@eldorado.org.br> Reviewed By: asomers MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D23193
103 lines
2.9 KiB
C
103 lines
2.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2019 Jan Sucan <jansucan@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <atf-c.h>
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#include "../utils.h"
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/*
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* Test cases.
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*/
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ATF_TC_WITHOUT_HEAD(aligned_even_length);
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ATF_TC_BODY(aligned_even_length, tc)
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{
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u_char data[] __aligned(sizeof(u_short)) =
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{0x12, 0x34, 0x56, 0x78};
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u_short sum;
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sum = in_cksum(data, nitems(data));
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u_char *c_sum = (u_char *)∑
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ATF_REQUIRE(c_sum[0] == 0x97 && c_sum[1] == 0x53);
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}
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ATF_TC_WITHOUT_HEAD(aligned_odd_length);
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ATF_TC_BODY(aligned_odd_length, tc)
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{
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u_char data[] __aligned(sizeof(u_short)) =
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{0x12, 0x34, 0x56, 0x78, 0x9a};
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u_short sum;
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sum = in_cksum(data, nitems(data));
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u_char *c_sum = (u_char *)∑
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ATF_REQUIRE(c_sum[0] == 0xfd && c_sum[1] == 0x52);
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}
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ATF_TC_WITHOUT_HEAD(unaligned_even_length);
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ATF_TC_BODY(unaligned_even_length, tc)
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{
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u_char data[] __aligned(sizeof(u_short)) =
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{0x00, 0x12, 0x34, 0x56, 0x78};
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u_short sum;
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sum = in_cksum(data + 1, nitems(data) - 1);
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u_char *c_sum = (u_char *)∑
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ATF_REQUIRE(c_sum[0] == 0x97 && c_sum[1] == 0x53);
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}
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ATF_TC_WITHOUT_HEAD(unaligned_odd_length);
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ATF_TC_BODY(unaligned_odd_length, tc)
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{
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u_char data[] __aligned(sizeof(u_short)) =
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{0x00, 0x12, 0x34, 0x56, 0x78, 0x9a};
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u_short sum;
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sum = in_cksum(data + 1, nitems(data) - 1);
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u_char *c_sum = (u_char *)∑
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ATF_REQUIRE(c_sum[0] == 0xfd && c_sum[1] == 0x52);
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}
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/*
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* Main.
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*/
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, aligned_even_length);
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ATF_TP_ADD_TC(tp, aligned_odd_length);
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ATF_TP_ADD_TC(tp, unaligned_even_length);
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ATF_TP_ADD_TC(tp, unaligned_odd_length);
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return (atf_no_error());
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}
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