Date: Thu, 7 Oct 2021 17:41:37 GMT From: Alan Somers <asomers@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: d55574c91830 - stable/12 - ICMP checksum test: Fix for big endian Message-ID: <202110071741.197HfbxF003358@gitrepo.freebsd.org>
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The branch stable/12 has been updated by asomers: URL: https://cgit.FreeBSD.org/src/commit/?id=d55574c91830d12b308664e4a165accffad22e06 commit d55574c91830d12b308664e4a165accffad22e06 Author: Charlie Root <renato.riolino@eldorado.org.br> AuthorDate: 2021-01-12 01:56:12 +0000 Commit: Alan Somers <asomers@FreeBSD.org> CommitDate: 2021-10-07 17:38:50 +0000 ICMP checksum test: Fix for big endian 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 Differential Revision: https://reviews.freebsd.org/D23193 (cherry picked from commit 292808246db702b9194deb8938e40fd06914aea9) --- sbin/ping/tests/in_cksum_test.c | 84 ++++++++++------------------------------- 1 file changed, 20 insertions(+), 64 deletions(-) diff --git a/sbin/ping/tests/in_cksum_test.c b/sbin/ping/tests/in_cksum_test.c index fc266545b432..597f6ac20722 100644 --- a/sbin/ping/tests/in_cksum_test.c +++ b/sbin/ping/tests/in_cksum_test.c @@ -39,92 +39,52 @@ __FBSDID("$FreeBSD$"); * Test cases. */ -ATF_TC_WITHOUT_HEAD(aligned_even_length_big_endian); -ATF_TC_BODY(aligned_even_length_big_endian, tc) +ATF_TC_WITHOUT_HEAD(aligned_even_length); +ATF_TC_BODY(aligned_even_length, tc) { u_char data[] __aligned(sizeof(u_short)) = {0x12, 0x34, 0x56, 0x78}; u_short sum; sum = in_cksum(data, nitems(data)); - ATF_REQUIRE(sum == 0x5397); + u_char *c_sum = (u_char *)∑ + ATF_REQUIRE(c_sum[0] == 0x97 && c_sum[1] == 0x53); } -ATF_TC_WITHOUT_HEAD(aligned_odd_length_big_endian); -ATF_TC_BODY(aligned_odd_length_big_endian, tc) +ATF_TC_WITHOUT_HEAD(aligned_odd_length); +ATF_TC_BODY(aligned_odd_length, tc) { u_char data[] __aligned(sizeof(u_short)) = {0x12, 0x34, 0x56, 0x78, 0x9a}; u_short sum; sum = in_cksum(data, nitems(data)); - ATF_REQUIRE(sum == 0x52fd); + u_char *c_sum = (u_char *)∑ + ATF_REQUIRE(c_sum[0] == 0xfd && c_sum[1] == 0x52); } -ATF_TC_WITHOUT_HEAD(aligned_even_length_little_endian); -ATF_TC_BODY(aligned_even_length_little_endian, tc) -{ - u_char data[] __aligned(sizeof(u_short)) = - {0x34, 0x12, 0x78, 0x56}; - u_short sum; - - sum = in_cksum(data, nitems(data)); - ATF_REQUIRE_MSG(sum == 0x9753, "%d", sum); -} - -ATF_TC_WITHOUT_HEAD(aligned_odd_length_little_endian); -ATF_TC_BODY(aligned_odd_length_little_endian, tc) -{ - u_char data[] __aligned(sizeof(u_short)) = - {0x34, 0x12, 0x78, 0x56, 0x00, 0x9a}; - u_short sum; - - sum = in_cksum(data, nitems(data)); - ATF_REQUIRE(sum == 0xfd52); -} - -ATF_TC_WITHOUT_HEAD(unaligned_even_length_big_endian); -ATF_TC_BODY(unaligned_even_length_big_endian, tc) +ATF_TC_WITHOUT_HEAD(unaligned_even_length); +ATF_TC_BODY(unaligned_even_length, tc) { u_char data[] __aligned(sizeof(u_short)) = {0x00, 0x12, 0x34, 0x56, 0x78}; u_short sum; sum = in_cksum(data + 1, nitems(data) - 1); - ATF_REQUIRE(sum == 0x5397); + u_char *c_sum = (u_char *)∑ + ATF_REQUIRE(c_sum[0] == 0x97 && c_sum[1] == 0x53); } -ATF_TC_WITHOUT_HEAD(unaligned_odd_length_big_endian); -ATF_TC_BODY(unaligned_odd_length_big_endian, tc) +ATF_TC_WITHOUT_HEAD(unaligned_odd_length); +ATF_TC_BODY(unaligned_odd_length, tc) { u_char data[] __aligned(sizeof(u_short)) = {0x00, 0x12, 0x34, 0x56, 0x78, 0x9a}; u_short sum; sum = in_cksum(data + 1, nitems(data) - 1); - ATF_REQUIRE(sum == 0x52fd); -} - -ATF_TC_WITHOUT_HEAD(unaligned_even_length_little_endian); -ATF_TC_BODY(unaligned_even_length_little_endian, tc) -{ - u_char data[] __aligned(sizeof(u_short)) = - {0x00, 0x34, 0x12, 0x78, 0x56}; - u_short sum; - - sum = in_cksum(data + 1, nitems(data) - 1); - ATF_REQUIRE_MSG(sum == 0x9753, "%d", sum); -} - -ATF_TC_WITHOUT_HEAD(unaligned_odd_length_little_endian); -ATF_TC_BODY(unaligned_odd_length_little_endian, tc) -{ - u_char data[] __aligned(sizeof(u_short)) = - {0x00, 0x34, 0x12, 0x78, 0x56, 0x00, 0x9a}; - u_short sum; - - sum = in_cksum(data + 1, nitems(data) - 1); - ATF_REQUIRE(sum == 0xfd52); + u_char *c_sum = (u_char *)∑ + ATF_REQUIRE(c_sum[0] == 0xfd && c_sum[1] == 0x52); } /* @@ -133,14 +93,10 @@ ATF_TC_BODY(unaligned_odd_length_little_endian, tc) ATF_TP_ADD_TCS(tp) { - ATF_TP_ADD_TC(tp, aligned_even_length_big_endian); - ATF_TP_ADD_TC(tp, aligned_odd_length_big_endian); - ATF_TP_ADD_TC(tp, aligned_even_length_little_endian); - ATF_TP_ADD_TC(tp, aligned_odd_length_little_endian); - ATF_TP_ADD_TC(tp, unaligned_even_length_big_endian); - ATF_TP_ADD_TC(tp, unaligned_odd_length_big_endian); - ATF_TP_ADD_TC(tp, unaligned_even_length_little_endian); - ATF_TP_ADD_TC(tp, unaligned_odd_length_little_endian); + ATF_TP_ADD_TC(tp, aligned_even_length); + ATF_TP_ADD_TC(tp, aligned_odd_length); + ATF_TP_ADD_TC(tp, unaligned_even_length); + ATF_TP_ADD_TC(tp, unaligned_odd_length); return (atf_no_error()); }
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