* [PATCH 1/2] libfrog: move crc32c selftest buffer into a separate file
@ 2023-03-16 16:51 Darrick J. Wong
2023-03-16 16:52 ` [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs Darrick J. Wong
2023-03-18 0:47 ` [PATCH 1/2] libfrog: move crc32c selftest buffer into a separate file Dave Chinner
0 siblings, 2 replies; 6+ messages in thread
From: Darrick J. Wong @ 2023-03-16 16:51 UTC (permalink / raw)
To: Carlos Maiolino; +Cc: xfs
From: Darrick J. Wong <djwong@kernel.org>
Move the random buffer used for selftests into a separate file so that
we can link to it from multiple places.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
libfrog/Makefile | 6 -
libfrog/crc32cselftest.h | 526 +---------------------------------------------
libfrog/randbytes.c | 527 ++++++++++++++++++++++++++++++++++++++++++++++
libfrog/randbytes.h | 11 +
4 files changed, 548 insertions(+), 522 deletions(-)
create mode 100644 libfrog/randbytes.c
create mode 100644 libfrog/randbytes.h
diff --git a/libfrog/Makefile b/libfrog/Makefile
index 01107082..b89818ed 100644
--- a/libfrog/Makefile
+++ b/libfrog/Makefile
@@ -26,6 +26,7 @@ paths.c \
projects.c \
ptvar.c \
radix-tree.c \
+randbytes.c \
scrub.c \
util.c \
workqueue.c
@@ -45,6 +46,7 @@ paths.h \
projects.h \
ptvar.h \
radix-tree.h \
+randbytes.h \
scrub.h \
workqueue.h
@@ -69,9 +71,9 @@ crc32table.h: gen_crc32table.c crc32defs.h
# systems/architectures. Hence we make sure that xfsprogs will never use a
# busted CRC calculation at build time and hence avoid putting bad CRCs down on
# disk.
-crc32selftest: gen_crc32table.c crc32table.h crc32.c crc32defs.h
+crc32selftest: gen_crc32table.c crc32table.h crc32.c crc32defs.h randbytes.c
@echo " [TEST] CRC32"
- $(Q) $(BUILD_CC) $(BUILD_CFLAGS) -D CRC32_SELFTEST=1 crc32.c -o $@
+ $(Q) $(BUILD_CC) $(BUILD_CFLAGS) -D CRC32_SELFTEST=1 randbytes.c crc32.c -o $@
$(Q) ./$@
include $(BUILDRULES)
diff --git a/libfrog/crc32cselftest.h b/libfrog/crc32cselftest.h
index 447a7f7d..757a9cf1 100644
--- a/libfrog/crc32cselftest.h
+++ b/libfrog/crc32cselftest.h
@@ -30,527 +30,11 @@
*/
/* This is just the crc32 self test bits from crc32.c. */
+#include "libfrog/randbytes.h"
#ifndef __LIBFROG_CRC32CSELFTEST_H__
#define __LIBFROG_CRC32CSELFTEST_H__
-/* 4096 random bytes */
-static uint8_t __attribute__((__aligned__(8))) test_buf[] =
-{
- 0x5b, 0x85, 0x21, 0xcb, 0x09, 0x68, 0x7d, 0x30,
- 0xc7, 0x69, 0xd7, 0x30, 0x92, 0xde, 0x59, 0xe4,
- 0xc9, 0x6e, 0x8b, 0xdb, 0x98, 0x6b, 0xaa, 0x60,
- 0xa8, 0xb5, 0xbc, 0x6c, 0xa9, 0xb1, 0x5b, 0x2c,
- 0xea, 0xb4, 0x92, 0x6a, 0x3f, 0x79, 0x91, 0xe4,
- 0xe9, 0x70, 0x51, 0x8c, 0x7f, 0x95, 0x6f, 0x1a,
- 0x56, 0xa1, 0x5c, 0x27, 0x03, 0x67, 0x9f, 0x3a,
- 0xe2, 0x31, 0x11, 0x29, 0x6b, 0x98, 0xfc, 0xc4,
- 0x53, 0x24, 0xc5, 0x8b, 0xce, 0x47, 0xb2, 0xb9,
- 0x32, 0xcb, 0xc1, 0xd0, 0x03, 0x57, 0x4e, 0xd4,
- 0xe9, 0x3c, 0xa1, 0x63, 0xcf, 0x12, 0x0e, 0xca,
- 0xe1, 0x13, 0xd1, 0x93, 0xa6, 0x88, 0x5c, 0x61,
- 0x5b, 0xbb, 0xf0, 0x19, 0x46, 0xb4, 0xcf, 0x9e,
- 0xb6, 0x6b, 0x4c, 0x3a, 0xcf, 0x60, 0xf9, 0x7a,
- 0x8d, 0x07, 0x63, 0xdb, 0x40, 0xe9, 0x0b, 0x6f,
- 0xad, 0x97, 0xf1, 0xed, 0xd0, 0x1e, 0x26, 0xfd,
- 0xbf, 0xb7, 0xc8, 0x04, 0x94, 0xf8, 0x8b, 0x8c,
- 0xf1, 0xab, 0x7a, 0xd4, 0xdd, 0xf3, 0xe8, 0x88,
- 0xc3, 0xed, 0x17, 0x8a, 0x9b, 0x40, 0x0d, 0x53,
- 0x62, 0x12, 0x03, 0x5f, 0x1b, 0x35, 0x32, 0x1f,
- 0xb4, 0x7b, 0x93, 0x78, 0x0d, 0xdb, 0xce, 0xa4,
- 0xc0, 0x47, 0xd5, 0xbf, 0x68, 0xe8, 0x5d, 0x74,
- 0x8f, 0x8e, 0x75, 0x1c, 0xb2, 0x4f, 0x9a, 0x60,
- 0xd1, 0xbe, 0x10, 0xf4, 0x5c, 0xa1, 0x53, 0x09,
- 0xa5, 0xe0, 0x09, 0x54, 0x85, 0x5c, 0xdc, 0x07,
- 0xe7, 0x21, 0x69, 0x7b, 0x8a, 0xfd, 0x90, 0xf1,
- 0x22, 0xd0, 0xb4, 0x36, 0x28, 0xe6, 0xb8, 0x0f,
- 0x39, 0xde, 0xc8, 0xf3, 0x86, 0x60, 0x34, 0xd2,
- 0x5e, 0xdf, 0xfd, 0xcf, 0x0f, 0xa9, 0x65, 0xf0,
- 0xd5, 0x4d, 0x96, 0x40, 0xe3, 0xdf, 0x3f, 0x95,
- 0x5a, 0x39, 0x19, 0x93, 0xf4, 0x75, 0xce, 0x22,
- 0x00, 0x1c, 0x93, 0xe2, 0x03, 0x66, 0xf4, 0x93,
- 0x73, 0x86, 0x81, 0x8e, 0x29, 0x44, 0x48, 0x86,
- 0x61, 0x7c, 0x48, 0xa3, 0x43, 0xd2, 0x9c, 0x8d,
- 0xd4, 0x95, 0xdd, 0xe1, 0x22, 0x89, 0x3a, 0x40,
- 0x4c, 0x1b, 0x8a, 0x04, 0xa8, 0x09, 0x69, 0x8b,
- 0xea, 0xc6, 0x55, 0x8e, 0x57, 0xe6, 0x64, 0x35,
- 0xf0, 0xc7, 0x16, 0x9f, 0x5d, 0x5e, 0x86, 0x40,
- 0x46, 0xbb, 0xe5, 0x45, 0x88, 0xfe, 0xc9, 0x63,
- 0x15, 0xfb, 0xf5, 0xbd, 0x71, 0x61, 0xeb, 0x7b,
- 0x78, 0x70, 0x07, 0x31, 0x03, 0x9f, 0xb2, 0xc8,
- 0xa7, 0xab, 0x47, 0xfd, 0xdf, 0xa0, 0x78, 0x72,
- 0xa4, 0x2a, 0xe4, 0xb6, 0xba, 0xc0, 0x1e, 0x86,
- 0x71, 0xe6, 0x3d, 0x18, 0x37, 0x70, 0xe6, 0xff,
- 0xe0, 0xbc, 0x0b, 0x22, 0xa0, 0x1f, 0xd3, 0xed,
- 0xa2, 0x55, 0x39, 0xab, 0xa8, 0x13, 0x73, 0x7c,
- 0x3f, 0xb2, 0xd6, 0x19, 0xac, 0xff, 0x99, 0xed,
- 0xe8, 0xe6, 0xa6, 0x22, 0xe3, 0x9c, 0xf1, 0x30,
- 0xdc, 0x01, 0x0a, 0x56, 0xfa, 0xe4, 0xc9, 0x99,
- 0xdd, 0xa8, 0xd8, 0xda, 0x35, 0x51, 0x73, 0xb4,
- 0x40, 0x86, 0x85, 0xdb, 0x5c, 0xd5, 0x85, 0x80,
- 0x14, 0x9c, 0xfd, 0x98, 0xa9, 0x82, 0xc5, 0x37,
- 0xff, 0x32, 0x5d, 0xd0, 0x0b, 0xfa, 0xdc, 0x04,
- 0x5e, 0x09, 0xd2, 0xca, 0x17, 0x4b, 0x1a, 0x8e,
- 0x15, 0xe1, 0xcc, 0x4e, 0x52, 0x88, 0x35, 0xbd,
- 0x48, 0xfe, 0x15, 0xa0, 0x91, 0xfd, 0x7e, 0x6c,
- 0x0e, 0x5d, 0x79, 0x1b, 0x81, 0x79, 0xd2, 0x09,
- 0x34, 0x70, 0x3d, 0x81, 0xec, 0xf6, 0x24, 0xbb,
- 0xfb, 0xf1, 0x7b, 0xdf, 0x54, 0xea, 0x80, 0x9b,
- 0xc7, 0x99, 0x9e, 0xbd, 0x16, 0x78, 0x12, 0x53,
- 0x5e, 0x01, 0xa7, 0x4e, 0xbd, 0x67, 0xe1, 0x9b,
- 0x4c, 0x0e, 0x61, 0x45, 0x97, 0xd2, 0xf0, 0x0f,
- 0xfe, 0x15, 0x08, 0xb7, 0x11, 0x4c, 0xe7, 0xff,
- 0x81, 0x53, 0xff, 0x91, 0x25, 0x38, 0x7e, 0x40,
- 0x94, 0xe5, 0xe0, 0xad, 0xe6, 0xd9, 0x79, 0xb6,
- 0x92, 0xc9, 0xfc, 0xde, 0xc3, 0x1a, 0x23, 0xbb,
- 0xdd, 0xc8, 0x51, 0x0c, 0x3a, 0x72, 0xfa, 0x73,
- 0x6f, 0xb7, 0xee, 0x61, 0x39, 0x03, 0x01, 0x3f,
- 0x7f, 0x94, 0x2e, 0x2e, 0xba, 0x3a, 0xbb, 0xb4,
- 0xfa, 0x6a, 0x17, 0xfe, 0xea, 0xef, 0x5e, 0x66,
- 0x97, 0x3f, 0x32, 0x3d, 0xd7, 0x3e, 0xb1, 0xf1,
- 0x6c, 0x14, 0x4c, 0xfd, 0x37, 0xd3, 0x38, 0x80,
- 0xfb, 0xde, 0xa6, 0x24, 0x1e, 0xc8, 0xca, 0x7f,
- 0x3a, 0x93, 0xd8, 0x8b, 0x18, 0x13, 0xb2, 0xe5,
- 0xe4, 0x93, 0x05, 0x53, 0x4f, 0x84, 0x66, 0xa7,
- 0x58, 0x5c, 0x7b, 0x86, 0x52, 0x6d, 0x0d, 0xce,
- 0xa4, 0x30, 0x7d, 0xb6, 0x18, 0x9f, 0xeb, 0xff,
- 0x22, 0xbb, 0x72, 0x29, 0xb9, 0x44, 0x0b, 0x48,
- 0x1e, 0x84, 0x71, 0x81, 0xe3, 0x6d, 0x73, 0x26,
- 0x92, 0xb4, 0x4d, 0x2a, 0x29, 0xb8, 0x1f, 0x72,
- 0xed, 0xd0, 0xe1, 0x64, 0x77, 0xea, 0x8e, 0x88,
- 0x0f, 0xef, 0x3f, 0xb1, 0x3b, 0xad, 0xf9, 0xc9,
- 0x8b, 0xd0, 0xac, 0xc6, 0xcc, 0xa9, 0x40, 0xcc,
- 0x76, 0xf6, 0x3b, 0x53, 0xb5, 0x88, 0xcb, 0xc8,
- 0x37, 0xf1, 0xa2, 0xba, 0x23, 0x15, 0x99, 0x09,
- 0xcc, 0xe7, 0x7a, 0x3b, 0x37, 0xf7, 0x58, 0xc8,
- 0x46, 0x8c, 0x2b, 0x2f, 0x4e, 0x0e, 0xa6, 0x5c,
- 0xea, 0x85, 0x55, 0xba, 0x02, 0x0e, 0x0e, 0x48,
- 0xbc, 0xe1, 0xb1, 0x01, 0x35, 0x79, 0x13, 0x3d,
- 0x1b, 0xc0, 0x53, 0x68, 0x11, 0xe7, 0x95, 0x0f,
- 0x9d, 0x3f, 0x4c, 0x47, 0x7b, 0x4d, 0x1c, 0xae,
- 0x50, 0x9b, 0xcb, 0xdd, 0x05, 0x8d, 0x9a, 0x97,
- 0xfd, 0x8c, 0xef, 0x0c, 0x1d, 0x67, 0x73, 0xa8,
- 0x28, 0x36, 0xd5, 0xb6, 0x92, 0x33, 0x40, 0x75,
- 0x0b, 0x51, 0xc3, 0x64, 0xba, 0x1d, 0xc2, 0xcc,
- 0xee, 0x7d, 0x54, 0x0f, 0x27, 0x69, 0xa7, 0x27,
- 0x63, 0x30, 0x29, 0xd9, 0xc8, 0x84, 0xd8, 0xdf,
- 0x9f, 0x68, 0x8d, 0x04, 0xca, 0xa6, 0xc5, 0xc7,
- 0x7a, 0x5c, 0xc8, 0xd1, 0xcb, 0x4a, 0xec, 0xd0,
- 0xd8, 0x20, 0x69, 0xc5, 0x17, 0xcd, 0x78, 0xc8,
- 0x75, 0x23, 0x30, 0x69, 0xc9, 0xd4, 0xea, 0x5c,
- 0x4f, 0x6b, 0x86, 0x3f, 0x8b, 0xfe, 0xee, 0x44,
- 0xc9, 0x7c, 0xb7, 0xdd, 0x3e, 0xe5, 0xec, 0x54,
- 0x03, 0x3e, 0xaa, 0x82, 0xc6, 0xdf, 0xb2, 0x38,
- 0x0e, 0x5d, 0xb3, 0x88, 0xd9, 0xd3, 0x69, 0x5f,
- 0x8f, 0x70, 0x8a, 0x7e, 0x11, 0xd9, 0x1e, 0x7b,
- 0x38, 0xf1, 0x42, 0x1a, 0xc0, 0x35, 0xf5, 0xc7,
- 0x36, 0x85, 0xf5, 0xf7, 0xb8, 0x7e, 0xc7, 0xef,
- 0x18, 0xf1, 0x63, 0xd6, 0x7a, 0xc6, 0xc9, 0x0e,
- 0x4d, 0x69, 0x4f, 0x84, 0xef, 0x26, 0x41, 0x0c,
- 0xec, 0xc7, 0xe0, 0x7e, 0x3c, 0x67, 0x01, 0x4c,
- 0x62, 0x1a, 0x20, 0x6f, 0xee, 0x47, 0x4d, 0xc0,
- 0x99, 0x13, 0x8d, 0x91, 0x4a, 0x26, 0xd4, 0x37,
- 0x28, 0x90, 0x58, 0x75, 0x66, 0x2b, 0x0a, 0xdf,
- 0xda, 0xee, 0x92, 0x25, 0x90, 0x62, 0x39, 0x9e,
- 0x44, 0x98, 0xad, 0xc1, 0x88, 0xed, 0xe4, 0xb4,
- 0xaf, 0xf5, 0x8c, 0x9b, 0x48, 0x4d, 0x56, 0x60,
- 0x97, 0x0f, 0x61, 0x59, 0x9e, 0xa6, 0x27, 0xfe,
- 0xc1, 0x91, 0x15, 0x38, 0xb8, 0x0f, 0xae, 0x61,
- 0x7d, 0x26, 0x13, 0x5a, 0x73, 0xff, 0x1c, 0xa3,
- 0x61, 0x04, 0x58, 0x48, 0x55, 0x44, 0x11, 0xfe,
- 0x15, 0xca, 0xc3, 0xbd, 0xca, 0xc5, 0xb4, 0x40,
- 0x5d, 0x1b, 0x7f, 0x39, 0xb5, 0x9c, 0x35, 0xec,
- 0x61, 0x15, 0x32, 0x32, 0xb8, 0x4e, 0x40, 0x9f,
- 0x17, 0x1f, 0x0a, 0x4d, 0xa9, 0x91, 0xef, 0xb7,
- 0xb0, 0xeb, 0xc2, 0x83, 0x9a, 0x6c, 0xd2, 0x79,
- 0x43, 0x78, 0x5e, 0x2f, 0xe5, 0xdd, 0x1a, 0x3c,
- 0x45, 0xab, 0x29, 0x40, 0x3a, 0x37, 0x5b, 0x6f,
- 0xd7, 0xfc, 0x48, 0x64, 0x3c, 0x49, 0xfb, 0x21,
- 0xbe, 0xc3, 0xff, 0x07, 0xfb, 0x17, 0xe9, 0xc9,
- 0x0c, 0x4c, 0x5c, 0x15, 0x9e, 0x8e, 0x22, 0x30,
- 0x0a, 0xde, 0x48, 0x7f, 0xdb, 0x0d, 0xd1, 0x2b,
- 0x87, 0x38, 0x9e, 0xcc, 0x5a, 0x01, 0x16, 0xee,
- 0x75, 0x49, 0x0d, 0x30, 0x01, 0x34, 0x6a, 0xb6,
- 0x9a, 0x5a, 0x2a, 0xec, 0xbb, 0x48, 0xac, 0xd3,
- 0x77, 0x83, 0xd8, 0x08, 0x86, 0x4f, 0x48, 0x09,
- 0x29, 0x41, 0x79, 0xa1, 0x03, 0x12, 0xc4, 0xcd,
- 0x90, 0x55, 0x47, 0x66, 0x74, 0x9a, 0xcc, 0x4f,
- 0x35, 0x8c, 0xd6, 0x98, 0xef, 0xeb, 0x45, 0xb9,
- 0x9a, 0x26, 0x2f, 0x39, 0xa5, 0x70, 0x6d, 0xfc,
- 0xb4, 0x51, 0xee, 0xf4, 0x9c, 0xe7, 0x38, 0x59,
- 0xad, 0xf4, 0xbc, 0x46, 0xff, 0x46, 0x8e, 0x60,
- 0x9c, 0xa3, 0x60, 0x1d, 0xf8, 0x26, 0x72, 0xf5,
- 0x72, 0x9d, 0x68, 0x80, 0x04, 0xf6, 0x0b, 0xa1,
- 0x0a, 0xd5, 0xa7, 0x82, 0x3a, 0x3e, 0x47, 0xa8,
- 0x5a, 0xde, 0x59, 0x4f, 0x7b, 0x07, 0xb3, 0xe9,
- 0x24, 0x19, 0x3d, 0x34, 0x05, 0xec, 0xf1, 0xab,
- 0x6e, 0x64, 0x8f, 0xd3, 0xe6, 0x41, 0x86, 0x80,
- 0x70, 0xe3, 0x8d, 0x60, 0x9c, 0x34, 0x25, 0x01,
- 0x07, 0x4d, 0x19, 0x41, 0x4e, 0x3d, 0x5c, 0x7e,
- 0xa8, 0xf5, 0xcc, 0xd5, 0x7b, 0xe2, 0x7d, 0x3d,
- 0x49, 0x86, 0x7d, 0x07, 0xb7, 0x10, 0xe3, 0x35,
- 0xb8, 0x84, 0x6d, 0x76, 0xab, 0x17, 0xc6, 0x38,
- 0xb4, 0xd3, 0x28, 0x57, 0xad, 0xd3, 0x88, 0x5a,
- 0xda, 0xea, 0xc8, 0x94, 0xcc, 0x37, 0x19, 0xac,
- 0x9c, 0x9f, 0x4b, 0x00, 0x15, 0xc0, 0xc8, 0xca,
- 0x1f, 0x15, 0xaa, 0xe0, 0xdb, 0xf9, 0x2f, 0x57,
- 0x1b, 0x24, 0xc7, 0x6f, 0x76, 0x29, 0xfb, 0xed,
- 0x25, 0x0d, 0xc0, 0xfe, 0xbd, 0x5a, 0xbf, 0x20,
- 0x08, 0x51, 0x05, 0xec, 0x71, 0xa3, 0xbf, 0xef,
- 0x5e, 0x99, 0x75, 0xdb, 0x3c, 0x5f, 0x9a, 0x8c,
- 0xbb, 0x19, 0x5c, 0x0e, 0x93, 0x19, 0xf8, 0x6a,
- 0xbc, 0xf2, 0x12, 0x54, 0x2f, 0xcb, 0x28, 0x64,
- 0x88, 0xb3, 0x92, 0x0d, 0x96, 0xd1, 0xa6, 0xe4,
- 0x1f, 0xf1, 0x4d, 0xa4, 0xab, 0x1c, 0xee, 0x54,
- 0xf2, 0xad, 0x29, 0x6d, 0x32, 0x37, 0xb2, 0x16,
- 0x77, 0x5c, 0xdc, 0x2e, 0x54, 0xec, 0x75, 0x26,
- 0xc6, 0x36, 0xd9, 0x17, 0x2c, 0xf1, 0x7a, 0xdc,
- 0x4b, 0xf1, 0xe2, 0xd9, 0x95, 0xba, 0xac, 0x87,
- 0xc1, 0xf3, 0x8e, 0x58, 0x08, 0xd8, 0x87, 0x60,
- 0xc9, 0xee, 0x6a, 0xde, 0xa4, 0xd2, 0xfc, 0x0d,
- 0xe5, 0x36, 0xc4, 0x5c, 0x52, 0xb3, 0x07, 0x54,
- 0x65, 0x24, 0xc1, 0xb1, 0xd1, 0xb1, 0x53, 0x13,
- 0x31, 0x79, 0x7f, 0x05, 0x76, 0xeb, 0x37, 0x59,
- 0x15, 0x2b, 0xd1, 0x3f, 0xac, 0x08, 0x97, 0xeb,
- 0x91, 0x98, 0xdf, 0x6c, 0x09, 0x0d, 0x04, 0x9f,
- 0xdc, 0x3b, 0x0e, 0x60, 0x68, 0x47, 0x23, 0x15,
- 0x16, 0xc6, 0x0b, 0x35, 0xf8, 0x77, 0xa2, 0x78,
- 0x50, 0xd4, 0x64, 0x22, 0x33, 0xff, 0xfb, 0x93,
- 0x71, 0x46, 0x50, 0x39, 0x1b, 0x9c, 0xea, 0x4e,
- 0x8d, 0x0c, 0x37, 0xe5, 0x5c, 0x51, 0x3a, 0x31,
- 0xb2, 0x85, 0x84, 0x3f, 0x41, 0xee, 0xa2, 0xc1,
- 0xc6, 0x13, 0x3b, 0x54, 0x28, 0xd2, 0x18, 0x37,
- 0xcc, 0x46, 0x9f, 0x6a, 0x91, 0x3d, 0x5a, 0x15,
- 0x3c, 0x89, 0xa3, 0x61, 0x06, 0x7d, 0x2e, 0x78,
- 0xbe, 0x7d, 0x40, 0xba, 0x2f, 0x95, 0xb1, 0x2f,
- 0x87, 0x3b, 0x8a, 0xbe, 0x6a, 0xf4, 0xc2, 0x31,
- 0x74, 0xee, 0x91, 0xe0, 0x23, 0xaa, 0x5d, 0x7f,
- 0xdd, 0xf0, 0x44, 0x8c, 0x0b, 0x59, 0x2b, 0xfc,
- 0x48, 0x3a, 0xdf, 0x07, 0x05, 0x38, 0x6c, 0xc9,
- 0xeb, 0x18, 0x24, 0x68, 0x8d, 0x58, 0x98, 0xd3,
- 0x31, 0xa3, 0xe4, 0x70, 0x59, 0xb1, 0x21, 0xbe,
- 0x7e, 0x65, 0x7d, 0xb8, 0x04, 0xab, 0xf6, 0xe4,
- 0xd7, 0xda, 0xec, 0x09, 0x8f, 0xda, 0x6d, 0x24,
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- 0x22, 0x7c, 0x8e, 0x83, 0x04, 0xce, 0xf6, 0x5d,
- 0x84, 0x8f, 0x95, 0x6a, 0x7f, 0xad, 0xfd, 0x32,
- 0x9c, 0x5e, 0xe4, 0x9c, 0x89, 0x60, 0x54, 0xaa,
- 0x96, 0x72, 0xd2, 0xd7, 0x36, 0x85, 0xa9, 0x45,
- 0xd2, 0x2a, 0xa1, 0x81, 0x49, 0x6f, 0x7e, 0x04,
- 0xfa, 0xe2, 0xfe, 0x90, 0x26, 0x77, 0x5a, 0x33,
- 0xb8, 0x04, 0x9a, 0x7a, 0xe6, 0x4c, 0x4f, 0xad,
- 0x72, 0x96, 0x08, 0x28, 0x58, 0x13, 0xf8, 0xc4,
- 0x1c, 0xf0, 0xc3, 0x45, 0x95, 0x49, 0x20, 0x8c,
- 0x9f, 0x39, 0x70, 0xe1, 0x77, 0xfe, 0xd5, 0x4b,
- 0xaf, 0x86, 0xda, 0xef, 0x22, 0x06, 0x83, 0x36,
- 0x29, 0x12, 0x11, 0x40, 0xbc, 0x3b, 0x86, 0xaa,
- 0xaa, 0x65, 0x60, 0xc3, 0x80, 0xca, 0xed, 0xa9,
- 0xf3, 0xb0, 0x79, 0x96, 0xa2, 0x55, 0x27, 0x28,
- 0x55, 0x73, 0x26, 0xa5, 0x50, 0xea, 0x92, 0x4b,
- 0x3c, 0x5c, 0x82, 0x33, 0xf0, 0x01, 0x3f, 0x03,
- 0xc1, 0x08, 0x05, 0xbf, 0x98, 0xf4, 0x9b, 0x6d,
- 0xa5, 0xa8, 0xb4, 0x82, 0x0c, 0x06, 0xfa, 0xff,
- 0x2d, 0x08, 0xf3, 0x05, 0x4f, 0x57, 0x2a, 0x39,
- 0xd4, 0x83, 0x0d, 0x75, 0x51, 0xd8, 0x5b, 0x1b,
- 0xd3, 0x51, 0x5a, 0x32, 0x2a, 0x9b, 0x32, 0xb2,
- 0xf2, 0xa4, 0x96, 0x12, 0xf2, 0xae, 0x40, 0x34,
- 0x67, 0xa8, 0xf5, 0x44, 0xd5, 0x35, 0x53, 0xfe,
- 0xa3, 0x60, 0x96, 0x63, 0x0f, 0x1f, 0x6e, 0xb0,
- 0x5a, 0x42, 0xa6, 0xfc, 0x51, 0x0b, 0x60, 0x27,
- 0xbc, 0x06, 0x71, 0xed, 0x65, 0x5b, 0x23, 0x86,
- 0x4a, 0x07, 0x3b, 0x22, 0x07, 0x46, 0xe6, 0x90,
- 0x3e, 0xf3, 0x25, 0x50, 0x1b, 0x4c, 0x7f, 0x03,
- 0x08, 0xa8, 0x36, 0x6b, 0x87, 0xe5, 0xe3, 0xdb,
- 0x9a, 0x38, 0x83, 0xff, 0x9f, 0x1a, 0x9f, 0x57,
- 0xa4, 0x2a, 0xf6, 0x37, 0xbc, 0x1a, 0xff, 0xc9,
- 0x1e, 0x35, 0x0c, 0xc3, 0x7c, 0xa3, 0xb2, 0xe5,
- 0xd2, 0xc6, 0xb4, 0x57, 0x47, 0xe4, 0x32, 0x16,
- 0x6d, 0xa9, 0xae, 0x64, 0xe6, 0x2d, 0x8d, 0xc5,
- 0x8d, 0x50, 0x8e, 0xe8, 0x1a, 0x22, 0x34, 0x2a,
- 0xd9, 0xeb, 0x51, 0x90, 0x4a, 0xb1, 0x41, 0x7d,
- 0x64, 0xf9, 0xb9, 0x0d, 0xf6, 0x23, 0x33, 0xb0,
- 0x33, 0xf4, 0xf7, 0x3f, 0x27, 0x84, 0xc6, 0x0f,
- 0x54, 0xa5, 0xc0, 0x2e, 0xec, 0x0b, 0x3a, 0x48,
- 0x6e, 0x80, 0x35, 0x81, 0x43, 0x9b, 0x90, 0xb1,
- 0xd0, 0x2b, 0xea, 0x21, 0xdc, 0xda, 0x5b, 0x09,
- 0xf4, 0xcc, 0x10, 0xb4, 0xc7, 0xfe, 0x79, 0x51,
- 0xc3, 0xc5, 0xac, 0x88, 0x74, 0x84, 0x0b, 0x4b,
- 0xca, 0x79, 0x16, 0x29, 0xfb, 0x69, 0x54, 0xdf,
- 0x41, 0x7e, 0xe9, 0xc7, 0x8e, 0xea, 0xa5, 0xfe,
- 0xfc, 0x76, 0x0e, 0x90, 0xc4, 0x92, 0x38, 0xad,
- 0x7b, 0x48, 0xe6, 0x6e, 0xf7, 0x21, 0xfd, 0x4e,
- 0x93, 0x0a, 0x7b, 0x41, 0x83, 0x68, 0xfb, 0x57,
- 0x51, 0x76, 0x34, 0xa9, 0x6c, 0x00, 0xaa, 0x4f,
- 0x66, 0x65, 0x98, 0x4a, 0x4f, 0xa3, 0xa0, 0xef,
- 0x69, 0x3f, 0xe3, 0x1c, 0x92, 0x8c, 0xfd, 0xd8,
- 0xe8, 0xde, 0x7c, 0x7f, 0x3e, 0x84, 0x8e, 0x69,
- 0x3c, 0xf1, 0xf2, 0x05, 0x46, 0xdc, 0x2f, 0x9d,
- 0x5e, 0x6e, 0x4c, 0xfb, 0xb5, 0x99, 0x2a, 0x59,
- 0x63, 0xc1, 0x34, 0xbc, 0x57, 0xc0, 0x0d, 0xb9,
- 0x61, 0x25, 0xf3, 0x33, 0x23, 0x51, 0xb6, 0x0d,
- 0x07, 0xa6, 0xab, 0x94, 0x4a, 0xb7, 0x2a, 0xea,
- 0xee, 0xac, 0xa3, 0xc3, 0x04, 0x8b, 0x0e, 0x56,
- 0xfe, 0x44, 0xa7, 0x39, 0xe2, 0xed, 0xed, 0xb4,
- 0x22, 0x2b, 0xac, 0x12, 0x32, 0x28, 0x91, 0xd8,
- 0xa5, 0xab, 0xff, 0x5f, 0xe0, 0x4b, 0xda, 0x78,
- 0x17, 0xda, 0xf1, 0x01, 0x5b, 0xcd, 0xe2, 0x5f,
- 0x50, 0x45, 0x73, 0x2b, 0xe4, 0x76, 0x77, 0xf4,
- 0x64, 0x1d, 0x43, 0xfb, 0x84, 0x7a, 0xea, 0x91,
- 0xae, 0xf9, 0x9e, 0xb7, 0xb4, 0xb0, 0x91, 0x5f,
- 0x16, 0x35, 0x9a, 0x11, 0xb8, 0xc7, 0xc1, 0x8c,
- 0xc6, 0x10, 0x8d, 0x2f, 0x63, 0x4a, 0xa7, 0x57,
- 0x3a, 0x51, 0xd6, 0x32, 0x2d, 0x64, 0x72, 0xd4,
- 0x66, 0xdc, 0x10, 0xa6, 0x67, 0xd6, 0x04, 0x23,
- 0x9d, 0x0a, 0x11, 0x77, 0xdd, 0x37, 0x94, 0x17,
- 0x3c, 0xbf, 0x8b, 0x65, 0xb0, 0x2e, 0x5e, 0x66,
- 0x47, 0x64, 0xac, 0xdd, 0xf0, 0x84, 0xfd, 0x39,
- 0xfa, 0x15, 0x5d, 0xef, 0xae, 0xca, 0xc1, 0x36,
- 0xa7, 0x5c, 0xbf, 0xc7, 0x08, 0xc2, 0x66, 0x00,
- 0x74, 0x74, 0x4e, 0x27, 0x3f, 0x55, 0x8a, 0xb7,
- 0x38, 0x66, 0x83, 0x6d, 0xcf, 0x99, 0x9e, 0x60,
- 0x8f, 0xdd, 0x2e, 0x62, 0x22, 0x0e, 0xef, 0x0c,
- 0x98, 0xa7, 0x85, 0x74, 0x3b, 0x9d, 0xec, 0x9e,
- 0xa9, 0x19, 0x72, 0xa5, 0x7f, 0x2c, 0x39, 0xb7,
- 0x7d, 0xb7, 0xf1, 0x12, 0x65, 0x27, 0x4b, 0x5a,
- 0xde, 0x17, 0xfe, 0xad, 0x44, 0xf3, 0x20, 0x4d,
- 0xfd, 0xe4, 0x1f, 0xb5, 0x81, 0xb0, 0x36, 0x37,
- 0x08, 0x6f, 0xc3, 0x0c, 0xe9, 0x85, 0x98, 0x82,
- 0xa9, 0x62, 0x0c, 0xc4, 0x97, 0xc0, 0x50, 0xc8,
- 0xa7, 0x3c, 0x50, 0x9f, 0x43, 0xb9, 0xcd, 0x5e,
- 0x4d, 0xfa, 0x1c, 0x4b, 0x0b, 0xa9, 0x98, 0x85,
- 0x38, 0x92, 0xac, 0x8d, 0xe4, 0xad, 0x9b, 0x98,
- 0xab, 0xd9, 0x38, 0xac, 0x62, 0x52, 0xa3, 0x22,
- 0x63, 0x0f, 0xbf, 0x95, 0x48, 0xdf, 0x69, 0xe7,
- 0x8b, 0x33, 0xd5, 0xb2, 0xbd, 0x05, 0x49, 0x49,
- 0x9d, 0x57, 0x73, 0x19, 0x33, 0xae, 0xfa, 0x33,
- 0xf1, 0x19, 0xa8, 0x80, 0xce, 0x04, 0x9f, 0xbc,
- 0x1d, 0x65, 0x82, 0x1b, 0xe5, 0x3a, 0x51, 0xc8,
- 0x1c, 0x21, 0xe3, 0x5d, 0xf3, 0x7d, 0x9b, 0x2f,
- 0x2c, 0x1d, 0x4a, 0x7f, 0x9b, 0x68, 0x35, 0xa3,
- 0xb2, 0x50, 0xf7, 0x62, 0x79, 0xcd, 0xf4, 0x98,
- 0x4f, 0xe5, 0x63, 0x7c, 0x3e, 0x45, 0x31, 0x8c,
- 0x16, 0xa0, 0x12, 0xc8, 0x58, 0xce, 0x39, 0xa6,
- 0xbc, 0x54, 0xdb, 0xc5, 0xe0, 0xd5, 0xba, 0xbc,
- 0xb9, 0x04, 0xf4, 0x8d, 0xe8, 0x2f, 0x15, 0x9d,
-};
-
/* 100 test cases */
static struct crc_test {
uint32_t crc; /* random starting crc */
@@ -682,14 +166,16 @@ crc32c_test(
for (i = 0; i < 100; i++) {
bytes += 2*test[i].length;
- crc ^= crc32c_le(test[i].crc, test_buf +
+ crc ^= crc32c_le(test[i].crc, randbytes_test_buf +
test[i].start, test[i].length);
}
gettimeofday(&start, NULL);
for (i = 0; i < 100; i++) {
- if (test[i].crc32c_le != crc32c_le(test[i].crc, test_buf +
- test[i].start, test[i].length))
+ crc = crc32c_le(test[i].crc,
+ randbytes_test_buf + test[i].start,
+ test[i].length);
+ if (crc != test[i].crc32c_le)
errors++;
}
gettimeofday(&stop, NULL);
diff --git a/libfrog/randbytes.c b/libfrog/randbytes.c
new file mode 100644
index 00000000..f22da0d3
--- /dev/null
+++ b/libfrog/randbytes.c
@@ -0,0 +1,527 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Aug 8, 2011 Bob Pearson with help from Joakim Tjernlund and George Spelvin
+ * Oct 15, 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * Oct 12, 2000 Matt Domsch <Matt_Domsch@dell.com>
+ *
+ * This is the buffer of random bytes used for self tests.
+ */
+#include "platform_defs.h"
+#include "libfrog/randbytes.h"
+
+/* 4096 random bytes */
+uint8_t __attribute__((__aligned__(8))) randbytes_test_buf[] =
+{
+ 0x5b, 0x85, 0x21, 0xcb, 0x09, 0x68, 0x7d, 0x30,
+ 0xc7, 0x69, 0xd7, 0x30, 0x92, 0xde, 0x59, 0xe4,
+ 0xc9, 0x6e, 0x8b, 0xdb, 0x98, 0x6b, 0xaa, 0x60,
+ 0xa8, 0xb5, 0xbc, 0x6c, 0xa9, 0xb1, 0x5b, 0x2c,
+ 0xea, 0xb4, 0x92, 0x6a, 0x3f, 0x79, 0x91, 0xe4,
+ 0xe9, 0x70, 0x51, 0x8c, 0x7f, 0x95, 0x6f, 0x1a,
+ 0x56, 0xa1, 0x5c, 0x27, 0x03, 0x67, 0x9f, 0x3a,
+ 0xe2, 0x31, 0x11, 0x29, 0x6b, 0x98, 0xfc, 0xc4,
+ 0x53, 0x24, 0xc5, 0x8b, 0xce, 0x47, 0xb2, 0xb9,
+ 0x32, 0xcb, 0xc1, 0xd0, 0x03, 0x57, 0x4e, 0xd4,
+ 0xe9, 0x3c, 0xa1, 0x63, 0xcf, 0x12, 0x0e, 0xca,
+ 0xe1, 0x13, 0xd1, 0x93, 0xa6, 0x88, 0x5c, 0x61,
+ 0x5b, 0xbb, 0xf0, 0x19, 0x46, 0xb4, 0xcf, 0x9e,
+ 0xb6, 0x6b, 0x4c, 0x3a, 0xcf, 0x60, 0xf9, 0x7a,
+ 0x8d, 0x07, 0x63, 0xdb, 0x40, 0xe9, 0x0b, 0x6f,
+ 0xad, 0x97, 0xf1, 0xed, 0xd0, 0x1e, 0x26, 0xfd,
+ 0xbf, 0xb7, 0xc8, 0x04, 0x94, 0xf8, 0x8b, 0x8c,
+ 0xf1, 0xab, 0x7a, 0xd4, 0xdd, 0xf3, 0xe8, 0x88,
+ 0xc3, 0xed, 0x17, 0x8a, 0x9b, 0x40, 0x0d, 0x53,
+ 0x62, 0x12, 0x03, 0x5f, 0x1b, 0x35, 0x32, 0x1f,
+ 0xb4, 0x7b, 0x93, 0x78, 0x0d, 0xdb, 0xce, 0xa4,
+ 0xc0, 0x47, 0xd5, 0xbf, 0x68, 0xe8, 0x5d, 0x74,
+ 0x8f, 0x8e, 0x75, 0x1c, 0xb2, 0x4f, 0x9a, 0x60,
+ 0xd1, 0xbe, 0x10, 0xf4, 0x5c, 0xa1, 0x53, 0x09,
+ 0xa5, 0xe0, 0x09, 0x54, 0x85, 0x5c, 0xdc, 0x07,
+ 0xe7, 0x21, 0x69, 0x7b, 0x8a, 0xfd, 0x90, 0xf1,
+ 0x22, 0xd0, 0xb4, 0x36, 0x28, 0xe6, 0xb8, 0x0f,
+ 0x39, 0xde, 0xc8, 0xf3, 0x86, 0x60, 0x34, 0xd2,
+ 0x5e, 0xdf, 0xfd, 0xcf, 0x0f, 0xa9, 0x65, 0xf0,
+ 0xd5, 0x4d, 0x96, 0x40, 0xe3, 0xdf, 0x3f, 0x95,
+ 0x5a, 0x39, 0x19, 0x93, 0xf4, 0x75, 0xce, 0x22,
+ 0x00, 0x1c, 0x93, 0xe2, 0x03, 0x66, 0xf4, 0x93,
+ 0x73, 0x86, 0x81, 0x8e, 0x29, 0x44, 0x48, 0x86,
+ 0x61, 0x7c, 0x48, 0xa3, 0x43, 0xd2, 0x9c, 0x8d,
+ 0xd4, 0x95, 0xdd, 0xe1, 0x22, 0x89, 0x3a, 0x40,
+ 0x4c, 0x1b, 0x8a, 0x04, 0xa8, 0x09, 0x69, 0x8b,
+ 0xea, 0xc6, 0x55, 0x8e, 0x57, 0xe6, 0x64, 0x35,
+ 0xf0, 0xc7, 0x16, 0x9f, 0x5d, 0x5e, 0x86, 0x40,
+ 0x46, 0xbb, 0xe5, 0x45, 0x88, 0xfe, 0xc9, 0x63,
+ 0x15, 0xfb, 0xf5, 0xbd, 0x71, 0x61, 0xeb, 0x7b,
+ 0x78, 0x70, 0x07, 0x31, 0x03, 0x9f, 0xb2, 0xc8,
+ 0xa7, 0xab, 0x47, 0xfd, 0xdf, 0xa0, 0x78, 0x72,
+ 0xa4, 0x2a, 0xe4, 0xb6, 0xba, 0xc0, 0x1e, 0x86,
+ 0x71, 0xe6, 0x3d, 0x18, 0x37, 0x70, 0xe6, 0xff,
+ 0xe0, 0xbc, 0x0b, 0x22, 0xa0, 0x1f, 0xd3, 0xed,
+ 0xa2, 0x55, 0x39, 0xab, 0xa8, 0x13, 0x73, 0x7c,
+ 0x3f, 0xb2, 0xd6, 0x19, 0xac, 0xff, 0x99, 0xed,
+ 0xe8, 0xe6, 0xa6, 0x22, 0xe3, 0x9c, 0xf1, 0x30,
+ 0xdc, 0x01, 0x0a, 0x56, 0xfa, 0xe4, 0xc9, 0x99,
+ 0xdd, 0xa8, 0xd8, 0xda, 0x35, 0x51, 0x73, 0xb4,
+ 0x40, 0x86, 0x85, 0xdb, 0x5c, 0xd5, 0x85, 0x80,
+ 0x14, 0x9c, 0xfd, 0x98, 0xa9, 0x82, 0xc5, 0x37,
+ 0xff, 0x32, 0x5d, 0xd0, 0x0b, 0xfa, 0xdc, 0x04,
+ 0x5e, 0x09, 0xd2, 0xca, 0x17, 0x4b, 0x1a, 0x8e,
+ 0x15, 0xe1, 0xcc, 0x4e, 0x52, 0x88, 0x35, 0xbd,
+ 0x48, 0xfe, 0x15, 0xa0, 0x91, 0xfd, 0x7e, 0x6c,
+ 0x0e, 0x5d, 0x79, 0x1b, 0x81, 0x79, 0xd2, 0x09,
+ 0x34, 0x70, 0x3d, 0x81, 0xec, 0xf6, 0x24, 0xbb,
+ 0xfb, 0xf1, 0x7b, 0xdf, 0x54, 0xea, 0x80, 0x9b,
+ 0xc7, 0x99, 0x9e, 0xbd, 0x16, 0x78, 0x12, 0x53,
+ 0x5e, 0x01, 0xa7, 0x4e, 0xbd, 0x67, 0xe1, 0x9b,
+ 0x4c, 0x0e, 0x61, 0x45, 0x97, 0xd2, 0xf0, 0x0f,
+ 0xfe, 0x15, 0x08, 0xb7, 0x11, 0x4c, 0xe7, 0xff,
+ 0x81, 0x53, 0xff, 0x91, 0x25, 0x38, 0x7e, 0x40,
+ 0x94, 0xe5, 0xe0, 0xad, 0xe6, 0xd9, 0x79, 0xb6,
+ 0x92, 0xc9, 0xfc, 0xde, 0xc3, 0x1a, 0x23, 0xbb,
+ 0xdd, 0xc8, 0x51, 0x0c, 0x3a, 0x72, 0xfa, 0x73,
+ 0x6f, 0xb7, 0xee, 0x61, 0x39, 0x03, 0x01, 0x3f,
+ 0x7f, 0x94, 0x2e, 0x2e, 0xba, 0x3a, 0xbb, 0xb4,
+ 0xfa, 0x6a, 0x17, 0xfe, 0xea, 0xef, 0x5e, 0x66,
+ 0x97, 0x3f, 0x32, 0x3d, 0xd7, 0x3e, 0xb1, 0xf1,
+ 0x6c, 0x14, 0x4c, 0xfd, 0x37, 0xd3, 0x38, 0x80,
+ 0xfb, 0xde, 0xa6, 0x24, 0x1e, 0xc8, 0xca, 0x7f,
+ 0x3a, 0x93, 0xd8, 0x8b, 0x18, 0x13, 0xb2, 0xe5,
+ 0xe4, 0x93, 0x05, 0x53, 0x4f, 0x84, 0x66, 0xa7,
+ 0x58, 0x5c, 0x7b, 0x86, 0x52, 0x6d, 0x0d, 0xce,
+ 0xa4, 0x30, 0x7d, 0xb6, 0x18, 0x9f, 0xeb, 0xff,
+ 0x22, 0xbb, 0x72, 0x29, 0xb9, 0x44, 0x0b, 0x48,
+ 0x1e, 0x84, 0x71, 0x81, 0xe3, 0x6d, 0x73, 0x26,
+ 0x92, 0xb4, 0x4d, 0x2a, 0x29, 0xb8, 0x1f, 0x72,
+ 0xed, 0xd0, 0xe1, 0x64, 0x77, 0xea, 0x8e, 0x88,
+ 0x0f, 0xef, 0x3f, 0xb1, 0x3b, 0xad, 0xf9, 0xc9,
+ 0x8b, 0xd0, 0xac, 0xc6, 0xcc, 0xa9, 0x40, 0xcc,
+ 0x76, 0xf6, 0x3b, 0x53, 0xb5, 0x88, 0xcb, 0xc8,
+ 0x37, 0xf1, 0xa2, 0xba, 0x23, 0x15, 0x99, 0x09,
+ 0xcc, 0xe7, 0x7a, 0x3b, 0x37, 0xf7, 0x58, 0xc8,
+ 0x46, 0x8c, 0x2b, 0x2f, 0x4e, 0x0e, 0xa6, 0x5c,
+ 0xea, 0x85, 0x55, 0xba, 0x02, 0x0e, 0x0e, 0x48,
+ 0xbc, 0xe1, 0xb1, 0x01, 0x35, 0x79, 0x13, 0x3d,
+ 0x1b, 0xc0, 0x53, 0x68, 0x11, 0xe7, 0x95, 0x0f,
+ 0x9d, 0x3f, 0x4c, 0x47, 0x7b, 0x4d, 0x1c, 0xae,
+ 0x50, 0x9b, 0xcb, 0xdd, 0x05, 0x8d, 0x9a, 0x97,
+ 0xfd, 0x8c, 0xef, 0x0c, 0x1d, 0x67, 0x73, 0xa8,
+ 0x28, 0x36, 0xd5, 0xb6, 0x92, 0x33, 0x40, 0x75,
+ 0x0b, 0x51, 0xc3, 0x64, 0xba, 0x1d, 0xc2, 0xcc,
+ 0xee, 0x7d, 0x54, 0x0f, 0x27, 0x69, 0xa7, 0x27,
+ 0x63, 0x30, 0x29, 0xd9, 0xc8, 0x84, 0xd8, 0xdf,
+ 0x9f, 0x68, 0x8d, 0x04, 0xca, 0xa6, 0xc5, 0xc7,
+ 0x7a, 0x5c, 0xc8, 0xd1, 0xcb, 0x4a, 0xec, 0xd0,
+ 0xd8, 0x20, 0x69, 0xc5, 0x17, 0xcd, 0x78, 0xc8,
+ 0x75, 0x23, 0x30, 0x69, 0xc9, 0xd4, 0xea, 0x5c,
+ 0x4f, 0x6b, 0x86, 0x3f, 0x8b, 0xfe, 0xee, 0x44,
+ 0xc9, 0x7c, 0xb7, 0xdd, 0x3e, 0xe5, 0xec, 0x54,
+ 0x03, 0x3e, 0xaa, 0x82, 0xc6, 0xdf, 0xb2, 0x38,
+ 0x0e, 0x5d, 0xb3, 0x88, 0xd9, 0xd3, 0x69, 0x5f,
+ 0x8f, 0x70, 0x8a, 0x7e, 0x11, 0xd9, 0x1e, 0x7b,
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+ 0xbc, 0x91, 0x71, 0x44, 0x4d, 0x99, 0x3b, 0x31,
+ 0xe5, 0x3f, 0x11, 0x4e, 0x7f, 0x13, 0x51, 0x3b,
+ 0xae, 0x79, 0xc9, 0xd3, 0x81, 0x8e, 0x25, 0x40,
+ 0x10, 0xfc, 0x07, 0x1e, 0xf9, 0x7b, 0x9a, 0x4b,
+ 0x6c, 0xe3, 0xb3, 0xad, 0x1a, 0x0a, 0xdd, 0x9e,
+ 0x59, 0x0c, 0xa2, 0xcd, 0xae, 0x48, 0x4a, 0x38,
+ 0x5b, 0x47, 0x41, 0x94, 0x65, 0x6b, 0xbb, 0xeb,
+ 0x5b, 0xe3, 0xaf, 0x07, 0x5b, 0xd4, 0x4a, 0xa2,
+ 0xc9, 0x5d, 0x2f, 0x64, 0x03, 0xd7, 0x3a, 0x2c,
+ 0x6e, 0xce, 0x76, 0x95, 0xb4, 0xb3, 0xc0, 0xf1,
+ 0xe2, 0x45, 0x73, 0x7a, 0x5c, 0xab, 0xc1, 0xfc,
+ 0x02, 0x8d, 0x81, 0x29, 0xb3, 0xac, 0x07, 0xec,
+ 0x40, 0x7d, 0x45, 0xd9, 0x7a, 0x59, 0xee, 0x34,
+ 0xf0, 0xe9, 0xd5, 0x7b, 0x96, 0xb1, 0x3d, 0x95,
+ 0xcc, 0x86, 0xb5, 0xb6, 0x04, 0x2d, 0xb5, 0x92,
+ 0x7e, 0x76, 0xf4, 0x06, 0xa9, 0xa3, 0x12, 0x0f,
+ 0xb1, 0xaf, 0x26, 0xba, 0x7c, 0xfc, 0x7e, 0x1c,
+ 0xbc, 0x2c, 0x49, 0x97, 0x53, 0x60, 0x13, 0x0b,
+ 0xa6, 0x61, 0x83, 0x89, 0x42, 0xd4, 0x17, 0x0c,
+ 0x6c, 0x26, 0x52, 0xc3, 0xb3, 0xd4, 0x67, 0xf5,
+ 0xe3, 0x04, 0xb7, 0xf4, 0xcb, 0x80, 0xb8, 0xcb,
+ 0x77, 0x56, 0x3e, 0xaa, 0x57, 0x54, 0xee, 0xb4,
+ 0x2c, 0x67, 0xcf, 0xf2, 0xdc, 0xbe, 0x55, 0xf9,
+ 0x43, 0x1f, 0x6e, 0x22, 0x97, 0x67, 0x7f, 0xc4,
+ 0xef, 0xb1, 0x26, 0x31, 0x1e, 0x27, 0xdf, 0x41,
+ 0x80, 0x47, 0x6c, 0xe2, 0xfa, 0xa9, 0x8c, 0x2a,
+ 0xf6, 0xf2, 0xab, 0xf0, 0x15, 0xda, 0x6c, 0xc8,
+ 0xfe, 0xb5, 0x23, 0xde, 0xa9, 0x05, 0x3f, 0x06,
+ 0x54, 0x4c, 0xcd, 0xe1, 0xab, 0xfc, 0x0e, 0x62,
+ 0x33, 0x31, 0x73, 0x2c, 0x76, 0xcb, 0xb4, 0x47,
+ 0x1e, 0x20, 0xad, 0xd8, 0xf2, 0x31, 0xdd, 0xc4,
+ 0x8b, 0x0c, 0x77, 0xbe, 0xe1, 0x8b, 0x26, 0x00,
+ 0x02, 0x58, 0xd6, 0x8d, 0xef, 0xad, 0x74, 0x67,
+ 0xab, 0x3f, 0xef, 0xcb, 0x6f, 0xb0, 0xcc, 0x81,
+ 0x44, 0x4c, 0xaf, 0xe9, 0x49, 0x4f, 0xdb, 0xa0,
+ 0x25, 0xa4, 0xf0, 0x89, 0xf1, 0xbe, 0xd8, 0x10,
+ 0xff, 0xb1, 0x3b, 0x4b, 0xfa, 0x98, 0xf5, 0x79,
+ 0x6d, 0x1e, 0x69, 0x4d, 0x57, 0xb1, 0xc8, 0x19,
+ 0x1b, 0xbd, 0x1e, 0x8c, 0x84, 0xb7, 0x7b, 0xe8,
+ 0xd2, 0x2d, 0x09, 0x41, 0x41, 0x37, 0x3d, 0xb1,
+ 0x6f, 0x26, 0x5d, 0x71, 0x16, 0x3d, 0xb7, 0x83,
+ 0x27, 0x2c, 0xa7, 0xb6, 0x50, 0xbd, 0x91, 0x86,
+ 0xab, 0x24, 0xa1, 0x38, 0xfd, 0xea, 0x71, 0x55,
+ 0x7e, 0x9a, 0x07, 0x77, 0x4b, 0xfa, 0x61, 0x66,
+ 0x20, 0x1e, 0x28, 0x95, 0x18, 0x1b, 0xa4, 0xa0,
+ 0xfd, 0xc0, 0x89, 0x72, 0x43, 0xd9, 0x3b, 0x49,
+ 0x5a, 0x3f, 0x9d, 0xbf, 0xdb, 0xb4, 0x46, 0xea,
+ 0x42, 0x01, 0x77, 0x23, 0x68, 0x95, 0xb6, 0x24,
+ 0xb3, 0xa8, 0x6c, 0x28, 0x3b, 0x11, 0x40, 0x7e,
+ 0x18, 0x65, 0x6d, 0xd8, 0x24, 0x42, 0x7d, 0x88,
+ 0xc0, 0x52, 0xd9, 0x05, 0xe4, 0x95, 0x90, 0x87,
+ 0x8c, 0xf4, 0xd0, 0x6b, 0xb9, 0x83, 0x99, 0x34,
+ 0x6d, 0xfe, 0x54, 0x40, 0x94, 0x52, 0x21, 0x4f,
+ 0x14, 0x25, 0xc5, 0xd6, 0x5e, 0x95, 0xdc, 0x0a,
+ 0x2b, 0x89, 0x20, 0x11, 0x84, 0x48, 0xd6, 0x3a,
+ 0xcd, 0x5c, 0x24, 0xad, 0x62, 0xe3, 0xb1, 0x93,
+ 0x25, 0x8d, 0xcd, 0x7e, 0xfc, 0x27, 0xa3, 0x37,
+ 0xfd, 0x84, 0xfc, 0x1b, 0xb2, 0xf1, 0x27, 0x38,
+ 0x5a, 0xb7, 0xfc, 0xf2, 0xfa, 0x95, 0x66, 0xd4,
+ 0xfb, 0xba, 0xa7, 0xd7, 0xa3, 0x72, 0x69, 0x48,
+ 0x48, 0x8c, 0xeb, 0x28, 0x89, 0xfe, 0x33, 0x65,
+ 0x5a, 0x36, 0x01, 0x7e, 0x06, 0x79, 0x0a, 0x09,
+ 0x3b, 0x74, 0x11, 0x9a, 0x6e, 0xbf, 0xd4, 0x9e,
+ 0x58, 0x90, 0x49, 0x4f, 0x4d, 0x08, 0xd4, 0xe5,
+ 0x4a, 0x09, 0x21, 0xef, 0x8b, 0xb8, 0x74, 0x3b,
+ 0x91, 0xdd, 0x36, 0x85, 0x60, 0x2d, 0xfa, 0xd4,
+ 0x45, 0x7b, 0x45, 0x53, 0xf5, 0x47, 0x87, 0x7e,
+ 0xa6, 0x37, 0xc8, 0x78, 0x7a, 0x68, 0x9d, 0x8d,
+ 0x65, 0x2c, 0x0e, 0x91, 0x5c, 0xa2, 0x60, 0xf0,
+ 0x8e, 0x3f, 0xe9, 0x1a, 0xcd, 0xaa, 0xe7, 0xd5,
+ 0x77, 0x18, 0xaf, 0xc9, 0xbc, 0x18, 0xea, 0x48,
+ 0x1b, 0xfb, 0x22, 0x48, 0x70, 0x16, 0x29, 0x9e,
+ 0x5b, 0xc1, 0x2c, 0x66, 0x23, 0xbc, 0xf0, 0x1f,
+ 0xef, 0xaf, 0xe4, 0xd6, 0x04, 0x19, 0x82, 0x7a,
+ 0x0b, 0xba, 0x4b, 0x46, 0xb1, 0x6a, 0x85, 0x5d,
+ 0xb4, 0x73, 0xd6, 0x21, 0xa1, 0x71, 0x60, 0x14,
+ 0xee, 0x0a, 0x77, 0xc4, 0x66, 0x2e, 0xf9, 0x69,
+ 0x30, 0xaf, 0x41, 0x0b, 0xc8, 0x83, 0x3c, 0x53,
+ 0x99, 0x19, 0x27, 0x46, 0xf7, 0x41, 0x6e, 0x56,
+ 0xdc, 0x94, 0x28, 0x67, 0x4e, 0xb7, 0x25, 0x48,
+ 0x8a, 0xc2, 0xe0, 0x60, 0x96, 0xcc, 0x18, 0xf4,
+ 0x84, 0xdd, 0xa7, 0x5e, 0x3e, 0x05, 0x0b, 0x26,
+ 0x26, 0xb2, 0x5c, 0x1f, 0x57, 0x1a, 0x04, 0x7e,
+ 0x6a, 0xe3, 0x2f, 0xb4, 0x35, 0xb6, 0x38, 0x40,
+ 0x40, 0xcd, 0x6f, 0x87, 0x2e, 0xef, 0xa3, 0xd7,
+ 0xa9, 0xc2, 0xe8, 0x0d, 0x27, 0xdf, 0x44, 0x62,
+ 0x99, 0xa0, 0xfc, 0xcf, 0x81, 0x78, 0xcb, 0xfe,
+ 0xe5, 0xa0, 0x03, 0x4e, 0x6c, 0xd7, 0xf4, 0xaf,
+ 0x7a, 0xbb, 0x61, 0x82, 0xfe, 0x71, 0x89, 0xb2,
+ 0x22, 0x7c, 0x8e, 0x83, 0x04, 0xce, 0xf6, 0x5d,
+ 0x84, 0x8f, 0x95, 0x6a, 0x7f, 0xad, 0xfd, 0x32,
+ 0x9c, 0x5e, 0xe4, 0x9c, 0x89, 0x60, 0x54, 0xaa,
+ 0x96, 0x72, 0xd2, 0xd7, 0x36, 0x85, 0xa9, 0x45,
+ 0xd2, 0x2a, 0xa1, 0x81, 0x49, 0x6f, 0x7e, 0x04,
+ 0xfa, 0xe2, 0xfe, 0x90, 0x26, 0x77, 0x5a, 0x33,
+ 0xb8, 0x04, 0x9a, 0x7a, 0xe6, 0x4c, 0x4f, 0xad,
+ 0x72, 0x96, 0x08, 0x28, 0x58, 0x13, 0xf8, 0xc4,
+ 0x1c, 0xf0, 0xc3, 0x45, 0x95, 0x49, 0x20, 0x8c,
+ 0x9f, 0x39, 0x70, 0xe1, 0x77, 0xfe, 0xd5, 0x4b,
+ 0xaf, 0x86, 0xda, 0xef, 0x22, 0x06, 0x83, 0x36,
+ 0x29, 0x12, 0x11, 0x40, 0xbc, 0x3b, 0x86, 0xaa,
+ 0xaa, 0x65, 0x60, 0xc3, 0x80, 0xca, 0xed, 0xa9,
+ 0xf3, 0xb0, 0x79, 0x96, 0xa2, 0x55, 0x27, 0x28,
+ 0x55, 0x73, 0x26, 0xa5, 0x50, 0xea, 0x92, 0x4b,
+ 0x3c, 0x5c, 0x82, 0x33, 0xf0, 0x01, 0x3f, 0x03,
+ 0xc1, 0x08, 0x05, 0xbf, 0x98, 0xf4, 0x9b, 0x6d,
+ 0xa5, 0xa8, 0xb4, 0x82, 0x0c, 0x06, 0xfa, 0xff,
+ 0x2d, 0x08, 0xf3, 0x05, 0x4f, 0x57, 0x2a, 0x39,
+ 0xd4, 0x83, 0x0d, 0x75, 0x51, 0xd8, 0x5b, 0x1b,
+ 0xd3, 0x51, 0x5a, 0x32, 0x2a, 0x9b, 0x32, 0xb2,
+ 0xf2, 0xa4, 0x96, 0x12, 0xf2, 0xae, 0x40, 0x34,
+ 0x67, 0xa8, 0xf5, 0x44, 0xd5, 0x35, 0x53, 0xfe,
+ 0xa3, 0x60, 0x96, 0x63, 0x0f, 0x1f, 0x6e, 0xb0,
+ 0x5a, 0x42, 0xa6, 0xfc, 0x51, 0x0b, 0x60, 0x27,
+ 0xbc, 0x06, 0x71, 0xed, 0x65, 0x5b, 0x23, 0x86,
+ 0x4a, 0x07, 0x3b, 0x22, 0x07, 0x46, 0xe6, 0x90,
+ 0x3e, 0xf3, 0x25, 0x50, 0x1b, 0x4c, 0x7f, 0x03,
+ 0x08, 0xa8, 0x36, 0x6b, 0x87, 0xe5, 0xe3, 0xdb,
+ 0x9a, 0x38, 0x83, 0xff, 0x9f, 0x1a, 0x9f, 0x57,
+ 0xa4, 0x2a, 0xf6, 0x37, 0xbc, 0x1a, 0xff, 0xc9,
+ 0x1e, 0x35, 0x0c, 0xc3, 0x7c, 0xa3, 0xb2, 0xe5,
+ 0xd2, 0xc6, 0xb4, 0x57, 0x47, 0xe4, 0x32, 0x16,
+ 0x6d, 0xa9, 0xae, 0x64, 0xe6, 0x2d, 0x8d, 0xc5,
+ 0x8d, 0x50, 0x8e, 0xe8, 0x1a, 0x22, 0x34, 0x2a,
+ 0xd9, 0xeb, 0x51, 0x90, 0x4a, 0xb1, 0x41, 0x7d,
+ 0x64, 0xf9, 0xb9, 0x0d, 0xf6, 0x23, 0x33, 0xb0,
+ 0x33, 0xf4, 0xf7, 0x3f, 0x27, 0x84, 0xc6, 0x0f,
+ 0x54, 0xa5, 0xc0, 0x2e, 0xec, 0x0b, 0x3a, 0x48,
+ 0x6e, 0x80, 0x35, 0x81, 0x43, 0x9b, 0x90, 0xb1,
+ 0xd0, 0x2b, 0xea, 0x21, 0xdc, 0xda, 0x5b, 0x09,
+ 0xf4, 0xcc, 0x10, 0xb4, 0xc7, 0xfe, 0x79, 0x51,
+ 0xc3, 0xc5, 0xac, 0x88, 0x74, 0x84, 0x0b, 0x4b,
+ 0xca, 0x79, 0x16, 0x29, 0xfb, 0x69, 0x54, 0xdf,
+ 0x41, 0x7e, 0xe9, 0xc7, 0x8e, 0xea, 0xa5, 0xfe,
+ 0xfc, 0x76, 0x0e, 0x90, 0xc4, 0x92, 0x38, 0xad,
+ 0x7b, 0x48, 0xe6, 0x6e, 0xf7, 0x21, 0xfd, 0x4e,
+ 0x93, 0x0a, 0x7b, 0x41, 0x83, 0x68, 0xfb, 0x57,
+ 0x51, 0x76, 0x34, 0xa9, 0x6c, 0x00, 0xaa, 0x4f,
+ 0x66, 0x65, 0x98, 0x4a, 0x4f, 0xa3, 0xa0, 0xef,
+ 0x69, 0x3f, 0xe3, 0x1c, 0x92, 0x8c, 0xfd, 0xd8,
+ 0xe8, 0xde, 0x7c, 0x7f, 0x3e, 0x84, 0x8e, 0x69,
+ 0x3c, 0xf1, 0xf2, 0x05, 0x46, 0xdc, 0x2f, 0x9d,
+ 0x5e, 0x6e, 0x4c, 0xfb, 0xb5, 0x99, 0x2a, 0x59,
+ 0x63, 0xc1, 0x34, 0xbc, 0x57, 0xc0, 0x0d, 0xb9,
+ 0x61, 0x25, 0xf3, 0x33, 0x23, 0x51, 0xb6, 0x0d,
+ 0x07, 0xa6, 0xab, 0x94, 0x4a, 0xb7, 0x2a, 0xea,
+ 0xee, 0xac, 0xa3, 0xc3, 0x04, 0x8b, 0x0e, 0x56,
+ 0xfe, 0x44, 0xa7, 0x39, 0xe2, 0xed, 0xed, 0xb4,
+ 0x22, 0x2b, 0xac, 0x12, 0x32, 0x28, 0x91, 0xd8,
+ 0xa5, 0xab, 0xff, 0x5f, 0xe0, 0x4b, 0xda, 0x78,
+ 0x17, 0xda, 0xf1, 0x01, 0x5b, 0xcd, 0xe2, 0x5f,
+ 0x50, 0x45, 0x73, 0x2b, 0xe4, 0x76, 0x77, 0xf4,
+ 0x64, 0x1d, 0x43, 0xfb, 0x84, 0x7a, 0xea, 0x91,
+ 0xae, 0xf9, 0x9e, 0xb7, 0xb4, 0xb0, 0x91, 0x5f,
+ 0x16, 0x35, 0x9a, 0x11, 0xb8, 0xc7, 0xc1, 0x8c,
+ 0xc6, 0x10, 0x8d, 0x2f, 0x63, 0x4a, 0xa7, 0x57,
+ 0x3a, 0x51, 0xd6, 0x32, 0x2d, 0x64, 0x72, 0xd4,
+ 0x66, 0xdc, 0x10, 0xa6, 0x67, 0xd6, 0x04, 0x23,
+ 0x9d, 0x0a, 0x11, 0x77, 0xdd, 0x37, 0x94, 0x17,
+ 0x3c, 0xbf, 0x8b, 0x65, 0xb0, 0x2e, 0x5e, 0x66,
+ 0x47, 0x64, 0xac, 0xdd, 0xf0, 0x84, 0xfd, 0x39,
+ 0xfa, 0x15, 0x5d, 0xef, 0xae, 0xca, 0xc1, 0x36,
+ 0xa7, 0x5c, 0xbf, 0xc7, 0x08, 0xc2, 0x66, 0x00,
+ 0x74, 0x74, 0x4e, 0x27, 0x3f, 0x55, 0x8a, 0xb7,
+ 0x38, 0x66, 0x83, 0x6d, 0xcf, 0x99, 0x9e, 0x60,
+ 0x8f, 0xdd, 0x2e, 0x62, 0x22, 0x0e, 0xef, 0x0c,
+ 0x98, 0xa7, 0x85, 0x74, 0x3b, 0x9d, 0xec, 0x9e,
+ 0xa9, 0x19, 0x72, 0xa5, 0x7f, 0x2c, 0x39, 0xb7,
+ 0x7d, 0xb7, 0xf1, 0x12, 0x65, 0x27, 0x4b, 0x5a,
+ 0xde, 0x17, 0xfe, 0xad, 0x44, 0xf3, 0x20, 0x4d,
+ 0xfd, 0xe4, 0x1f, 0xb5, 0x81, 0xb0, 0x36, 0x37,
+ 0x08, 0x6f, 0xc3, 0x0c, 0xe9, 0x85, 0x98, 0x82,
+ 0xa9, 0x62, 0x0c, 0xc4, 0x97, 0xc0, 0x50, 0xc8,
+ 0xa7, 0x3c, 0x50, 0x9f, 0x43, 0xb9, 0xcd, 0x5e,
+ 0x4d, 0xfa, 0x1c, 0x4b, 0x0b, 0xa9, 0x98, 0x85,
+ 0x38, 0x92, 0xac, 0x8d, 0xe4, 0xad, 0x9b, 0x98,
+ 0xab, 0xd9, 0x38, 0xac, 0x62, 0x52, 0xa3, 0x22,
+ 0x63, 0x0f, 0xbf, 0x95, 0x48, 0xdf, 0x69, 0xe7,
+ 0x8b, 0x33, 0xd5, 0xb2, 0xbd, 0x05, 0x49, 0x49,
+ 0x9d, 0x57, 0x73, 0x19, 0x33, 0xae, 0xfa, 0x33,
+ 0xf1, 0x19, 0xa8, 0x80, 0xce, 0x04, 0x9f, 0xbc,
+ 0x1d, 0x65, 0x82, 0x1b, 0xe5, 0x3a, 0x51, 0xc8,
+ 0x1c, 0x21, 0xe3, 0x5d, 0xf3, 0x7d, 0x9b, 0x2f,
+ 0x2c, 0x1d, 0x4a, 0x7f, 0x9b, 0x68, 0x35, 0xa3,
+ 0xb2, 0x50, 0xf7, 0x62, 0x79, 0xcd, 0xf4, 0x98,
+ 0x4f, 0xe5, 0x63, 0x7c, 0x3e, 0x45, 0x31, 0x8c,
+ 0x16, 0xa0, 0x12, 0xc8, 0x58, 0xce, 0x39, 0xa6,
+ 0xbc, 0x54, 0xdb, 0xc5, 0xe0, 0xd5, 0xba, 0xbc,
+ 0xb9, 0x04, 0xf4, 0x8d, 0xe8, 0x2f, 0x15, 0x9d,
+};
diff --git a/libfrog/randbytes.h b/libfrog/randbytes.h
new file mode 100644
index 00000000..00fd7c4c
--- /dev/null
+++ b/libfrog/randbytes.h
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <djwong@kernel.org>
+ */
+#ifndef __LIBFROG_RANDBYTES_H__
+#define __LIBFROG_RANDBYTES_H__
+
+extern uint8_t randbytes_test_buf[];
+
+#endif /* __LIBFROG_RANDBYTES_H__ */
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs
2023-03-16 16:51 [PATCH 1/2] libfrog: move crc32c selftest buffer into a separate file Darrick J. Wong
@ 2023-03-16 16:52 ` Darrick J. Wong
2023-03-18 0:47 ` Dave Chinner
2023-03-18 0:47 ` [PATCH 1/2] libfrog: move crc32c selftest buffer into a separate file Dave Chinner
1 sibling, 1 reply; 6+ messages in thread
From: Darrick J. Wong @ 2023-03-16 16:52 UTC (permalink / raw)
To: Carlos Maiolino; +Cc: xfs
From: Darrick J. Wong <djwong@kernel.org>
Back in the 6.2-rc1 days, Eric Whitney reported a fstests regression in
ext4 against generic/454. The cause of this test failure was the
unfortunate combination of setting an xattr name containing UTF8 encoded
emoji, an xattr hash function that accepted a char pointer with no
explicit signedness, signed type extension of those chars to an int, and
the 6.2 build tools maintainers deciding to mandate -funsigned-char
across the board. As a result, the ondisk extended attribute structure
written out by 6.1 and 6.2 were not the same.
This discrepancy, in fact, had been noticeable if a filesystem with such
an xattr were moved between any two architectures that don't employ the
same signedness of a raw "char" declaration. The only reason anyone
noticed is that x86 gcc defaults to signed, and no such -funsigned-char
update was made to e2fsprogs, so e2fsck immediately started reporting
data corruption.
After a day and a half of discussing how to handle this use case (xattrs
with bit 7 set anywhere in the name) without breaking existing users,
Linus merged his own patch and didn't tell the mailing list. None of
the developers noticed until AUTOSEL made an announcement.
In the end, this problem could have been detected much earlier if there
had been any useful tests of hash function(s) in use inside ext4 to make
sure that they always produce the same outputs given the same inputs.
The XFS dirent/xattr name hash takes a uint8_t*, so I don't think it's
vulnerable to this problem. However, let's avoid all this drama by
adding our own self test to check that the da hash produces the same
outputs for a static pile of inputs on various platforms. This
corresponds to the similar patch for the kernel.
Link: https://lore.kernel.org/linux-ext4/Y8bpkm3jA3bDm3eL@debian-BULLSEYE-live-builder-AMD64/
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
libfrog/Makefile | 1
libfrog/crc32cselftest.h | 17 ++---
libfrog/dahashselftest.h | 172 ++++++++++++++++++++++++++++++++++++++++++++++
mkfs/xfs_mkfs.c | 8 ++
repair/init.c | 5 +
5 files changed, 195 insertions(+), 8 deletions(-)
create mode 100644 libfrog/dahashselftest.h
diff --git a/libfrog/Makefile b/libfrog/Makefile
index b89818ed..f292afe3 100644
--- a/libfrog/Makefile
+++ b/libfrog/Makefile
@@ -40,6 +40,7 @@ crc32c.h \
crc32cselftest.h \
crc32defs.h \
crc32table.h \
+dahashselftest.h \
fsgeom.h \
logging.h \
paths.h \
diff --git a/libfrog/crc32cselftest.h b/libfrog/crc32cselftest.h
index 757a9cf1..ad9c74c7 100644
--- a/libfrog/crc32cselftest.h
+++ b/libfrog/crc32cselftest.h
@@ -41,7 +41,7 @@ static struct crc_test {
uint32_t start; /* random 6 bit offset in buf */
uint32_t length; /* random 11 bit length of test */
uint32_t crc32c_le; /* expected crc32c_le result */
-} test[] =
+} crc_tests[] =
{
{0x674bf11d, 0x00000038, 0x00000542, 0xf6e93d6c},
{0x35c672c6, 0x0000003a, 0x000001aa, 0x0fe92aca},
@@ -164,18 +164,19 @@ crc32c_test(
/* pre-warm the cache */
for (i = 0; i < 100; i++) {
- bytes += 2*test[i].length;
+ bytes += 2 * crc_tests[i].length;
- crc ^= crc32c_le(test[i].crc, randbytes_test_buf +
- test[i].start, test[i].length);
+ crc ^= crc32c_le(crc_tests[i].crc,
+ randbytes_test_buf + crc_tests[i].start,
+ crc_tests[i].length);
}
gettimeofday(&start, NULL);
for (i = 0; i < 100; i++) {
- crc = crc32c_le(test[i].crc,
- randbytes_test_buf + test[i].start,
- test[i].length);
- if (crc != test[i].crc32c_le)
+ crc = crc32c_le(crc_tests[i].crc,
+ randbytes_test_buf + crc_tests[i].start,
+ crc_tests[i].length);
+ if (crc != crc_tests[i].crc32c_le)
errors++;
}
gettimeofday(&stop, NULL);
diff --git a/libfrog/dahashselftest.h b/libfrog/dahashselftest.h
new file mode 100644
index 00000000..7dda5303
--- /dev/null
+++ b/libfrog/dahashselftest.h
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <djwong@kernel.org>
+ */
+#include "libfrog/randbytes.h"
+
+#ifndef __LIBFROG_DAHASHSELFTEST_H__
+#define __LIBFROG_DAHASHSELFTEST_H__
+
+/* 100 test cases */
+static struct dahash_test {
+ uint16_t start; /* random 12 bit offset in buf */
+ uint16_t length; /* random 8 bit length of test */
+ xfs_dahash_t dahash; /* expected dahash result */
+} dahash_tests[] =
+{
+ {0x0567, 0x0097, 0x96951389},
+ {0x0869, 0x0055, 0x6455ab4f},
+ {0x0c51, 0x00be, 0x8663afde},
+ {0x044a, 0x00fc, 0x98fbe432},
+ {0x0f29, 0x0079, 0x42371997},
+ {0x08ba, 0x0052, 0x942be4f7},
+ {0x01f2, 0x0013, 0x5262687e},
+ {0x09e3, 0x00e2, 0x8ffb0908},
+ {0x007c, 0x0051, 0xb3158491},
+ {0x0854, 0x001f, 0x83bb20d9},
+ {0x031b, 0x0008, 0x98970bdf},
+ {0x0de7, 0x0027, 0xbfbf6f6c},
+ {0x0f76, 0x0005, 0x906a7105},
+ {0x092e, 0x00d0, 0x86631850},
+ {0x0233, 0x0082, 0xdbdd914e},
+ {0x04c9, 0x0075, 0x5a400a9e},
+ {0x0b66, 0x0099, 0xae128b45},
+ {0x000d, 0x00ed, 0xe61c216a},
+ {0x0a31, 0x003d, 0xf69663b9},
+ {0x00a3, 0x0052, 0x643c39ae},
+ {0x0125, 0x00d5, 0x7c310b0d},
+ {0x0105, 0x004a, 0x06a77e74},
+ {0x0858, 0x008e, 0x265bc739},
+ {0x045e, 0x0095, 0x13d6b192},
+ {0x0dab, 0x003c, 0xc4498704},
+ {0x00cd, 0x00b5, 0x802a4e2d},
+ {0x069b, 0x008c, 0x5df60f71},
+ {0x0454, 0x006c, 0x5f03d8bb},
+ {0x040e, 0x0032, 0x0ce513b5},
+ {0x0874, 0x00e2, 0x6a811fb3},
+ {0x0521, 0x00b4, 0x93296833},
+ {0x0ddc, 0x00cf, 0xf9305338},
+ {0x0a70, 0x0023, 0x239549ea},
+ {0x083e, 0x0027, 0x2d88ba97},
+ {0x0241, 0x00a7, 0xfe0b32e1},
+ {0x0dfc, 0x0096, 0x1a11e815},
+ {0x023e, 0x001e, 0xebc9a1f3},
+ {0x067e, 0x0066, 0xb1067f81},
+ {0x09ea, 0x000e, 0x46fd7247},
+ {0x036b, 0x008c, 0x1a39acdf},
+ {0x078f, 0x0030, 0x964042ab},
+ {0x085c, 0x008f, 0x1829edab},
+ {0x02ec, 0x009f, 0x6aefa72d},
+ {0x043b, 0x00ce, 0x65642ff5},
+ {0x0a32, 0x00b8, 0xbd82759e},
+ {0x0d3c, 0x0087, 0xf4d66d54},
+ {0x09ec, 0x008a, 0x06bfa1ff},
+ {0x0902, 0x0015, 0x755025d2},
+ {0x08fe, 0x000e, 0xf690ce2d},
+ {0x00fb, 0x00dc, 0xe55f1528},
+ {0x0eaa, 0x003a, 0x0fe0a8d7},
+ {0x05fb, 0x0006, 0x86281cfb},
+ {0x0dd1, 0x00a7, 0x60ab51b4},
+ {0x0005, 0x001b, 0xf51d969b},
+ {0x077c, 0x00dd, 0xc2fed268},
+ {0x0575, 0x00f5, 0x432c0b1a},
+ {0x05be, 0x0088, 0x78baa04b},
+ {0x0c89, 0x0068, 0xeda9e428},
+ {0x0f5c, 0x0068, 0xec143c76},
+ {0x06a8, 0x0009, 0xd72651ce},
+ {0x060f, 0x008e, 0x765426cd},
+ {0x07b1, 0x0047, 0x2cfcfa0c},
+ {0x04f1, 0x0041, 0x55b172f9},
+ {0x0e05, 0x00ac, 0x61efde93},
+ {0x0bf7, 0x0097, 0x05b83eee},
+ {0x04e9, 0x00f3, 0x9928223a},
+ {0x023a, 0x0005, 0xdfada9bc},
+ {0x0acb, 0x000e, 0x2217cecd},
+ {0x0148, 0x0060, 0xbc3f7405},
+ {0x0764, 0x0059, 0xcbc201b1},
+ {0x021f, 0x0059, 0x5d6b2256},
+ {0x0f1e, 0x006c, 0xdefeeb45},
+ {0x071c, 0x00b9, 0xb9b59309},
+ {0x0564, 0x0063, 0xae064271},
+ {0x0b14, 0x0044, 0xdb867d9b},
+ {0x0e5a, 0x0055, 0xff06b685},
+ {0x015e, 0x00ba, 0x1115ccbc},
+ {0x0379, 0x00e6, 0x5f4e58dd},
+ {0x013b, 0x0067, 0x4897427e},
+ {0x0e64, 0x0071, 0x7af2b7a4},
+ {0x0a11, 0x0050, 0x92105726},
+ {0x0109, 0x0055, 0xd0d000f9},
+ {0x00aa, 0x0022, 0x815d229d},
+ {0x09ac, 0x004f, 0x02f9d985},
+ {0x0e1b, 0x00ce, 0x5cf92ab4},
+ {0x08af, 0x00d8, 0x17ca72d1},
+ {0x0e33, 0x000a, 0xda2dba6b},
+ {0x0ee3, 0x006a, 0xb00048e5},
+ {0x0648, 0x001a, 0x2364b8cb},
+ {0x0315, 0x0085, 0x0596fd0d},
+ {0x0fbb, 0x003e, 0x298230ca},
+ {0x0422, 0x006a, 0x78ada4ab},
+ {0x04ba, 0x0073, 0xced1fbc2},
+ {0x007d, 0x0061, 0x4b7ff236},
+ {0x070b, 0x00d0, 0x261cf0ae},
+ {0x0c1a, 0x0035, 0x8be92ee2},
+ {0x0af8, 0x0063, 0x824dcf03},
+ {0x08f8, 0x006d, 0xd289710c},
+ {0x021b, 0x00ee, 0x6ac1c41d},
+ {0x05b5, 0x00da, 0x8e52f0e2},
+};
+
+/* Don't print anything to stdout. */
+#define DAHASHTEST_QUIET (1U << 0)
+
+static int
+dahash_test(
+ unsigned int flags)
+{
+ int i;
+ int errors = 0;
+ int bytes = 0;
+ struct timeval start, stop;
+ uint64_t usec;
+
+ /* keep static to prevent cache warming code from
+ * getting eliminated by the compiler */
+ static xfs_dahash_t hash;
+
+ /* pre-warm the cache */
+ for (i = 0; i < ARRAY_SIZE(dahash_tests); i++) {
+ bytes += 2 * dahash_tests[i].length;
+
+ hash ^= libxfs_da_hashname(
+ randbytes_test_buf + dahash_tests[i].start,
+ dahash_tests[i].length);
+ }
+
+ gettimeofday(&start, NULL);
+ for (i = 0; i < ARRAY_SIZE(dahash_tests); i++) {
+ hash = libxfs_da_hashname(
+ randbytes_test_buf + dahash_tests[i].start,
+ dahash_tests[i].length);
+ if (hash != dahash_tests[i].dahash)
+ errors++;
+ }
+ gettimeofday(&stop, NULL);
+
+ usec = stop.tv_usec - start.tv_usec +
+ 1000000 * (stop.tv_sec - start.tv_sec);
+
+ if (flags & DAHASHTEST_QUIET)
+ return errors;
+
+ if (errors)
+ printf("dahash: %d self tests failed\n", errors);
+ else {
+ printf("dahash: tests passed, %d bytes in %" PRIu64 " usec\n",
+ bytes, usec);
+ }
+
+ return errors;
+}
+
+#endif /* __LIBFROG_DAHASHSELFTEST_H__ */
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 54730497..4320cd9e 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -11,6 +11,7 @@
#include "libfrog/fsgeom.h"
#include "libfrog/convert.h"
#include "libfrog/crc32cselftest.h"
+#include "libfrog/dahashselftest.h"
#include "proto.h"
#include <ini.h>
@@ -4264,6 +4265,13 @@ main(
return 1;
}
+ /* Make sure our dir/attr hash algorithm really works. */
+ if (dahash_test(DAHASHTEST_QUIET) != 0) {
+ fprintf(stderr,
+ _("xfs dir/attr self-test failed, will not create a filesystem here.\n"));
+ return 1;
+ }
+
/*
* All values have been validated, discard the old device layout.
*/
diff --git a/repair/init.c b/repair/init.c
index 3a320b4f..0d5bfabc 100644
--- a/repair/init.c
+++ b/repair/init.c
@@ -15,6 +15,7 @@
#include "incore.h"
#include "prefetch.h"
#include "libfrog/crc32cselftest.h"
+#include "libfrog/dahashselftest.h"
#include <sys/resource.h>
static void
@@ -105,4 +106,8 @@ _("Unmount or use the dangerous (-d) option to repair a read-only mounted filesy
if (crc32c_test(CRC32CTEST_QUIET) != 0)
do_error(
_("crc32c self-test failed, will not examine filesystem.\n"));
+
+ if (dahash_test(DAHASHTEST_QUIET) != 0)
+ do_error(
+ _("xfs dir/attr hash self-test failed, will not examine filesystem.\n"));
}
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] libfrog: move crc32c selftest buffer into a separate file
2023-03-16 16:51 [PATCH 1/2] libfrog: move crc32c selftest buffer into a separate file Darrick J. Wong
2023-03-16 16:52 ` [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs Darrick J. Wong
@ 2023-03-18 0:47 ` Dave Chinner
1 sibling, 0 replies; 6+ messages in thread
From: Dave Chinner @ 2023-03-18 0:47 UTC (permalink / raw)
To: Darrick J. Wong; +Cc: Carlos Maiolino, xfs
On Thu, Mar 16, 2023 at 09:51:01AM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
>
> Move the random buffer used for selftests into a separate file so that
> we can link to it from multiple places.
>
> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
> ---
> libfrog/Makefile | 6 -
> libfrog/crc32cselftest.h | 526 +---------------------------------------------
> libfrog/randbytes.c | 527 ++++++++++++++++++++++++++++++++++++++++++++++
> libfrog/randbytes.h | 11 +
> 4 files changed, 548 insertions(+), 522 deletions(-)
> create mode 100644 libfrog/randbytes.c
> create mode 100644 libfrog/randbytes.h
looks fine.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
--
Dave Chinner
david@fromorbit.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs
2023-03-16 16:52 ` [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs Darrick J. Wong
@ 2023-03-18 0:47 ` Dave Chinner
0 siblings, 0 replies; 6+ messages in thread
From: Dave Chinner @ 2023-03-18 0:47 UTC (permalink / raw)
To: Darrick J. Wong; +Cc: Carlos Maiolino, xfs
On Thu, Mar 16, 2023 at 09:52:46AM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
>
> Back in the 6.2-rc1 days, Eric Whitney reported a fstests regression in
> ext4 against generic/454. The cause of this test failure was the
> unfortunate combination of setting an xattr name containing UTF8 encoded
> emoji, an xattr hash function that accepted a char pointer with no
> explicit signedness, signed type extension of those chars to an int, and
> the 6.2 build tools maintainers deciding to mandate -funsigned-char
> across the board. As a result, the ondisk extended attribute structure
> written out by 6.1 and 6.2 were not the same.
>
> This discrepancy, in fact, had been noticeable if a filesystem with such
> an xattr were moved between any two architectures that don't employ the
> same signedness of a raw "char" declaration. The only reason anyone
> noticed is that x86 gcc defaults to signed, and no such -funsigned-char
> update was made to e2fsprogs, so e2fsck immediately started reporting
> data corruption.
>
> After a day and a half of discussing how to handle this use case (xattrs
> with bit 7 set anywhere in the name) without breaking existing users,
> Linus merged his own patch and didn't tell the mailing list. None of
> the developers noticed until AUTOSEL made an announcement.
>
> In the end, this problem could have been detected much earlier if there
> had been any useful tests of hash function(s) in use inside ext4 to make
> sure that they always produce the same outputs given the same inputs.
>
> The XFS dirent/xattr name hash takes a uint8_t*, so I don't think it's
> vulnerable to this problem. However, let's avoid all this drama by
> adding our own self test to check that the da hash produces the same
> outputs for a static pile of inputs on various platforms. This
> corresponds to the similar patch for the kernel.
>
> Link: https://lore.kernel.org/linux-ext4/Y8bpkm3jA3bDm3eL@debian-BULLSEYE-live-builder-AMD64/
> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
> ---
> libfrog/Makefile | 1
> libfrog/crc32cselftest.h | 17 ++---
> libfrog/dahashselftest.h | 172 ++++++++++++++++++++++++++++++++++++++++++++++
> mkfs/xfs_mkfs.c | 8 ++
> repair/init.c | 5 +
> 5 files changed, 195 insertions(+), 8 deletions(-)
> create mode 100644 libfrog/dahashselftest.h
Looks good.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
--
Dave Chinner
david@fromorbit.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs
2023-04-06 0:08 ` [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs Darrick J. Wong
@ 2023-04-11 5:00 ` Christoph Hellwig
0 siblings, 0 replies; 6+ messages in thread
From: Christoph Hellwig @ 2023-04-11 5:00 UTC (permalink / raw)
To: Darrick J. Wong; +Cc: cem, linux-xfs, david
Looks good:
Reviewed-by: Christoph Hellwig <hch@lst.de>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs
2023-04-06 0:07 [PATCHSET 0/2] xfsprogs: test the dir/attr hash function Darrick J. Wong
@ 2023-04-06 0:08 ` Darrick J. Wong
2023-04-11 5:00 ` Christoph Hellwig
0 siblings, 1 reply; 6+ messages in thread
From: Darrick J. Wong @ 2023-04-06 0:08 UTC (permalink / raw)
To: djwong, cem; +Cc: linux-xfs, david
From: Darrick J. Wong <djwong@kernel.org>
Back in the 6.2-rc1 days, Eric Whitney reported a fstests regression in
ext4 against generic/454. The cause of this test failure was the
unfortunate combination of setting an xattr name containing UTF8 encoded
emoji, an xattr hash function that accepted a char pointer with no
explicit signedness, signed type extension of those chars to an int, and
the 6.2 build tools maintainers deciding to mandate -funsigned-char
across the board. As a result, the ondisk extended attribute structure
written out by 6.1 and 6.2 were not the same.
This discrepancy, in fact, had been noticeable if a filesystem with such
an xattr were moved between any two architectures that don't employ the
same signedness of a raw "char" declaration. The only reason anyone
noticed is that x86 gcc defaults to signed, and no such -funsigned-char
update was made to e2fsprogs, so e2fsck immediately started reporting
data corruption.
After a day and a half of discussing how to handle this use case (xattrs
with bit 7 set anywhere in the name) without breaking existing users,
Linus merged his own patch and didn't tell the mailing list. None of
the developers noticed until AUTOSEL made an announcement.
In the end, this problem could have been detected much earlier if there
had been any useful tests of hash function(s) in use inside ext4 to make
sure that they always produce the same outputs given the same inputs.
The XFS dirent/xattr name hash takes a uint8_t*, so I don't think it's
vulnerable to this problem. However, let's avoid all this drama by
adding our own self test to check that the da hash produces the same
outputs for a static pile of inputs on various platforms. This
corresponds to the similar patch for the kernel.
Link: https://lore.kernel.org/linux-ext4/Y8bpkm3jA3bDm3eL@debian-BULLSEYE-live-builder-AMD64/
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
libfrog/Makefile | 1
libfrog/crc32cselftest.h | 17 ++---
libfrog/dahashselftest.h | 172 ++++++++++++++++++++++++++++++++++++++++++++++
mkfs/xfs_mkfs.c | 8 ++
repair/init.c | 5 +
5 files changed, 195 insertions(+), 8 deletions(-)
create mode 100644 libfrog/dahashselftest.h
diff --git a/libfrog/Makefile b/libfrog/Makefile
index b89818ed..f292afe3 100644
--- a/libfrog/Makefile
+++ b/libfrog/Makefile
@@ -40,6 +40,7 @@ crc32c.h \
crc32cselftest.h \
crc32defs.h \
crc32table.h \
+dahashselftest.h \
fsgeom.h \
logging.h \
paths.h \
diff --git a/libfrog/crc32cselftest.h b/libfrog/crc32cselftest.h
index 757a9cf1..ad9c74c7 100644
--- a/libfrog/crc32cselftest.h
+++ b/libfrog/crc32cselftest.h
@@ -41,7 +41,7 @@ static struct crc_test {
uint32_t start; /* random 6 bit offset in buf */
uint32_t length; /* random 11 bit length of test */
uint32_t crc32c_le; /* expected crc32c_le result */
-} test[] =
+} crc_tests[] =
{
{0x674bf11d, 0x00000038, 0x00000542, 0xf6e93d6c},
{0x35c672c6, 0x0000003a, 0x000001aa, 0x0fe92aca},
@@ -164,18 +164,19 @@ crc32c_test(
/* pre-warm the cache */
for (i = 0; i < 100; i++) {
- bytes += 2*test[i].length;
+ bytes += 2 * crc_tests[i].length;
- crc ^= crc32c_le(test[i].crc, randbytes_test_buf +
- test[i].start, test[i].length);
+ crc ^= crc32c_le(crc_tests[i].crc,
+ randbytes_test_buf + crc_tests[i].start,
+ crc_tests[i].length);
}
gettimeofday(&start, NULL);
for (i = 0; i < 100; i++) {
- crc = crc32c_le(test[i].crc,
- randbytes_test_buf + test[i].start,
- test[i].length);
- if (crc != test[i].crc32c_le)
+ crc = crc32c_le(crc_tests[i].crc,
+ randbytes_test_buf + crc_tests[i].start,
+ crc_tests[i].length);
+ if (crc != crc_tests[i].crc32c_le)
errors++;
}
gettimeofday(&stop, NULL);
diff --git a/libfrog/dahashselftest.h b/libfrog/dahashselftest.h
new file mode 100644
index 00000000..7dda5303
--- /dev/null
+++ b/libfrog/dahashselftest.h
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <djwong@kernel.org>
+ */
+#include "libfrog/randbytes.h"
+
+#ifndef __LIBFROG_DAHASHSELFTEST_H__
+#define __LIBFROG_DAHASHSELFTEST_H__
+
+/* 100 test cases */
+static struct dahash_test {
+ uint16_t start; /* random 12 bit offset in buf */
+ uint16_t length; /* random 8 bit length of test */
+ xfs_dahash_t dahash; /* expected dahash result */
+} dahash_tests[] =
+{
+ {0x0567, 0x0097, 0x96951389},
+ {0x0869, 0x0055, 0x6455ab4f},
+ {0x0c51, 0x00be, 0x8663afde},
+ {0x044a, 0x00fc, 0x98fbe432},
+ {0x0f29, 0x0079, 0x42371997},
+ {0x08ba, 0x0052, 0x942be4f7},
+ {0x01f2, 0x0013, 0x5262687e},
+ {0x09e3, 0x00e2, 0x8ffb0908},
+ {0x007c, 0x0051, 0xb3158491},
+ {0x0854, 0x001f, 0x83bb20d9},
+ {0x031b, 0x0008, 0x98970bdf},
+ {0x0de7, 0x0027, 0xbfbf6f6c},
+ {0x0f76, 0x0005, 0x906a7105},
+ {0x092e, 0x00d0, 0x86631850},
+ {0x0233, 0x0082, 0xdbdd914e},
+ {0x04c9, 0x0075, 0x5a400a9e},
+ {0x0b66, 0x0099, 0xae128b45},
+ {0x000d, 0x00ed, 0xe61c216a},
+ {0x0a31, 0x003d, 0xf69663b9},
+ {0x00a3, 0x0052, 0x643c39ae},
+ {0x0125, 0x00d5, 0x7c310b0d},
+ {0x0105, 0x004a, 0x06a77e74},
+ {0x0858, 0x008e, 0x265bc739},
+ {0x045e, 0x0095, 0x13d6b192},
+ {0x0dab, 0x003c, 0xc4498704},
+ {0x00cd, 0x00b5, 0x802a4e2d},
+ {0x069b, 0x008c, 0x5df60f71},
+ {0x0454, 0x006c, 0x5f03d8bb},
+ {0x040e, 0x0032, 0x0ce513b5},
+ {0x0874, 0x00e2, 0x6a811fb3},
+ {0x0521, 0x00b4, 0x93296833},
+ {0x0ddc, 0x00cf, 0xf9305338},
+ {0x0a70, 0x0023, 0x239549ea},
+ {0x083e, 0x0027, 0x2d88ba97},
+ {0x0241, 0x00a7, 0xfe0b32e1},
+ {0x0dfc, 0x0096, 0x1a11e815},
+ {0x023e, 0x001e, 0xebc9a1f3},
+ {0x067e, 0x0066, 0xb1067f81},
+ {0x09ea, 0x000e, 0x46fd7247},
+ {0x036b, 0x008c, 0x1a39acdf},
+ {0x078f, 0x0030, 0x964042ab},
+ {0x085c, 0x008f, 0x1829edab},
+ {0x02ec, 0x009f, 0x6aefa72d},
+ {0x043b, 0x00ce, 0x65642ff5},
+ {0x0a32, 0x00b8, 0xbd82759e},
+ {0x0d3c, 0x0087, 0xf4d66d54},
+ {0x09ec, 0x008a, 0x06bfa1ff},
+ {0x0902, 0x0015, 0x755025d2},
+ {0x08fe, 0x000e, 0xf690ce2d},
+ {0x00fb, 0x00dc, 0xe55f1528},
+ {0x0eaa, 0x003a, 0x0fe0a8d7},
+ {0x05fb, 0x0006, 0x86281cfb},
+ {0x0dd1, 0x00a7, 0x60ab51b4},
+ {0x0005, 0x001b, 0xf51d969b},
+ {0x077c, 0x00dd, 0xc2fed268},
+ {0x0575, 0x00f5, 0x432c0b1a},
+ {0x05be, 0x0088, 0x78baa04b},
+ {0x0c89, 0x0068, 0xeda9e428},
+ {0x0f5c, 0x0068, 0xec143c76},
+ {0x06a8, 0x0009, 0xd72651ce},
+ {0x060f, 0x008e, 0x765426cd},
+ {0x07b1, 0x0047, 0x2cfcfa0c},
+ {0x04f1, 0x0041, 0x55b172f9},
+ {0x0e05, 0x00ac, 0x61efde93},
+ {0x0bf7, 0x0097, 0x05b83eee},
+ {0x04e9, 0x00f3, 0x9928223a},
+ {0x023a, 0x0005, 0xdfada9bc},
+ {0x0acb, 0x000e, 0x2217cecd},
+ {0x0148, 0x0060, 0xbc3f7405},
+ {0x0764, 0x0059, 0xcbc201b1},
+ {0x021f, 0x0059, 0x5d6b2256},
+ {0x0f1e, 0x006c, 0xdefeeb45},
+ {0x071c, 0x00b9, 0xb9b59309},
+ {0x0564, 0x0063, 0xae064271},
+ {0x0b14, 0x0044, 0xdb867d9b},
+ {0x0e5a, 0x0055, 0xff06b685},
+ {0x015e, 0x00ba, 0x1115ccbc},
+ {0x0379, 0x00e6, 0x5f4e58dd},
+ {0x013b, 0x0067, 0x4897427e},
+ {0x0e64, 0x0071, 0x7af2b7a4},
+ {0x0a11, 0x0050, 0x92105726},
+ {0x0109, 0x0055, 0xd0d000f9},
+ {0x00aa, 0x0022, 0x815d229d},
+ {0x09ac, 0x004f, 0x02f9d985},
+ {0x0e1b, 0x00ce, 0x5cf92ab4},
+ {0x08af, 0x00d8, 0x17ca72d1},
+ {0x0e33, 0x000a, 0xda2dba6b},
+ {0x0ee3, 0x006a, 0xb00048e5},
+ {0x0648, 0x001a, 0x2364b8cb},
+ {0x0315, 0x0085, 0x0596fd0d},
+ {0x0fbb, 0x003e, 0x298230ca},
+ {0x0422, 0x006a, 0x78ada4ab},
+ {0x04ba, 0x0073, 0xced1fbc2},
+ {0x007d, 0x0061, 0x4b7ff236},
+ {0x070b, 0x00d0, 0x261cf0ae},
+ {0x0c1a, 0x0035, 0x8be92ee2},
+ {0x0af8, 0x0063, 0x824dcf03},
+ {0x08f8, 0x006d, 0xd289710c},
+ {0x021b, 0x00ee, 0x6ac1c41d},
+ {0x05b5, 0x00da, 0x8e52f0e2},
+};
+
+/* Don't print anything to stdout. */
+#define DAHASHTEST_QUIET (1U << 0)
+
+static int
+dahash_test(
+ unsigned int flags)
+{
+ int i;
+ int errors = 0;
+ int bytes = 0;
+ struct timeval start, stop;
+ uint64_t usec;
+
+ /* keep static to prevent cache warming code from
+ * getting eliminated by the compiler */
+ static xfs_dahash_t hash;
+
+ /* pre-warm the cache */
+ for (i = 0; i < ARRAY_SIZE(dahash_tests); i++) {
+ bytes += 2 * dahash_tests[i].length;
+
+ hash ^= libxfs_da_hashname(
+ randbytes_test_buf + dahash_tests[i].start,
+ dahash_tests[i].length);
+ }
+
+ gettimeofday(&start, NULL);
+ for (i = 0; i < ARRAY_SIZE(dahash_tests); i++) {
+ hash = libxfs_da_hashname(
+ randbytes_test_buf + dahash_tests[i].start,
+ dahash_tests[i].length);
+ if (hash != dahash_tests[i].dahash)
+ errors++;
+ }
+ gettimeofday(&stop, NULL);
+
+ usec = stop.tv_usec - start.tv_usec +
+ 1000000 * (stop.tv_sec - start.tv_sec);
+
+ if (flags & DAHASHTEST_QUIET)
+ return errors;
+
+ if (errors)
+ printf("dahash: %d self tests failed\n", errors);
+ else {
+ printf("dahash: tests passed, %d bytes in %" PRIu64 " usec\n",
+ bytes, usec);
+ }
+
+ return errors;
+}
+
+#endif /* __LIBFROG_DAHASHSELFTEST_H__ */
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 4399bf37..6dc0f335 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -11,6 +11,7 @@
#include "libfrog/fsgeom.h"
#include "libfrog/convert.h"
#include "libfrog/crc32cselftest.h"
+#include "libfrog/dahashselftest.h"
#include "proto.h"
#include <ini.h>
@@ -4320,6 +4321,13 @@ main(
return 1;
}
+ /* Make sure our dir/attr hash algorithm really works. */
+ if (dahash_test(DAHASHTEST_QUIET) != 0) {
+ fprintf(stderr,
+ _("xfs dir/attr self-test failed, will not create a filesystem here.\n"));
+ return 1;
+ }
+
/*
* All values have been validated, discard the old device layout.
*/
diff --git a/repair/init.c b/repair/init.c
index 3a320b4f..0d5bfabc 100644
--- a/repair/init.c
+++ b/repair/init.c
@@ -15,6 +15,7 @@
#include "incore.h"
#include "prefetch.h"
#include "libfrog/crc32cselftest.h"
+#include "libfrog/dahashselftest.h"
#include <sys/resource.h>
static void
@@ -105,4 +106,8 @@ _("Unmount or use the dangerous (-d) option to repair a read-only mounted filesy
if (crc32c_test(CRC32CTEST_QUIET) != 0)
do_error(
_("crc32c self-test failed, will not examine filesystem.\n"));
+
+ if (dahash_test(DAHASHTEST_QUIET) != 0)
+ do_error(
+ _("xfs dir/attr hash self-test failed, will not examine filesystem.\n"));
}
^ permalink raw reply related [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-04-11 5:00 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-03-16 16:51 [PATCH 1/2] libfrog: move crc32c selftest buffer into a separate file Darrick J. Wong
2023-03-16 16:52 ` [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs Darrick J. Wong
2023-03-18 0:47 ` Dave Chinner
2023-03-18 0:47 ` [PATCH 1/2] libfrog: move crc32c selftest buffer into a separate file Dave Chinner
2023-04-06 0:07 [PATCHSET 0/2] xfsprogs: test the dir/attr hash function Darrick J. Wong
2023-04-06 0:08 ` [PATCH 2/2] misc: test the dir/attr hash before formatting or repairing fs Darrick J. Wong
2023-04-11 5:00 ` Christoph Hellwig
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