Date: Fri, 8 Oct 2021 06:10:38 GMT From: Kyle Evans <kevans@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 2cdb7756262d - stable/12 - loader: remove libsa/crc32.c and use version from zlib Message-ID: <202110080610.1986AcUJ006976@gitrepo.freebsd.org>
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The branch stable/12 has been updated by kevans: URL: https://cgit.FreeBSD.org/src/commit/?id=2cdb7756262dcfc9ccad903d405d7e5dba78e1a7 commit 2cdb7756262dcfc9ccad903d405d7e5dba78e1a7 Author: Toomas Soome <tsoome@FreeBSD.org> AuthorDate: 2020-03-19 21:05:11 +0000 Commit: Kyle Evans <kevans@FreeBSD.org> CommitDate: 2021-10-08 02:42:16 +0000 loader: remove libsa/crc32.c and use version from zlib we have crc32(const void *, size_t) in libsa. Unfortunately zlib has crc32(long, const unigned char *, unsigned) and we have conflict. Since we do build libsa with zlib, we can use zlib version instead. (cherry picked from commit 27bae6150a9fd352796b5ff775eb464a2cf6dac9) --- stand/common/part.c | 8 +-- stand/efi/gptboot/Makefile | 1 + stand/i386/gptboot/Makefile | 1 + stand/i386/gptzfsboot/Makefile | 1 + stand/libsa/crc32.c | 108 ----------------------------------------- stand/libsa/crc32.h | 13 ----- stand/libsa/gpt.c | 28 +++++++---- stand/loader.mk | 1 + stand/uboot/lib/Makefile | 2 + stand/uboot/lib/glue.c | 6 +-- 10 files changed, 31 insertions(+), 138 deletions(-) diff --git a/stand/common/part.c b/stand/common/part.c index 69df57abb175..b13db2abd35a 100644 --- a/stand/common/part.c +++ b/stand/common/part.c @@ -39,7 +39,7 @@ __FBSDID("$FreeBSD$"); #include <fs/cd9660/iso.h> -#include <crc32.h> +#include <zlib.h> #include <part.h> #include <uuid.h> @@ -168,8 +168,8 @@ gpt_checkhdr(struct gpt_hdr *hdr, uint64_t lba_self, uint64_t lba_last, return (NULL); } crc = le32toh(hdr->hdr_crc_self); - hdr->hdr_crc_self = 0; - if (crc32(hdr, sz) != crc) { + hdr->hdr_crc_self = crc32(0, Z_NULL, 0); + if (crc32(hdr->hdr_crc_self, (const Bytef *)hdr, sz) != crc) { DPRINTF("GPT header's CRC doesn't match"); return (NULL); } @@ -217,7 +217,7 @@ gpt_checktbl(const struct gpt_hdr *hdr, uint8_t *tbl, size_t size, cnt = hdr->hdr_entries; /* Check CRC only when buffer size is enough for table. */ if (hdr->hdr_crc_table != - crc32(tbl, hdr->hdr_entries * hdr->hdr_entsz)) { + crc32(0, tbl, hdr->hdr_entries * hdr->hdr_entsz)) { DPRINTF("GPT table's CRC doesn't match"); return (-1); } diff --git a/stand/efi/gptboot/Makefile b/stand/efi/gptboot/Makefile index fc444955ac08..f1087e3ba80c 100644 --- a/stand/efi/gptboot/Makefile +++ b/stand/efi/gptboot/Makefile @@ -11,6 +11,7 @@ BOOT1?= gptboot CFLAGS+= -I${SRCTOP}/stand/efi/boot1 CFLAGS+= -I${.CURDIR} CFLAGS+= -DBOOTPROG=\"gptboot.efi\" +CFLAGS+= -DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib SRCS+= gpt.c CWARNFLAGS.gpt.c+= -Wno-sign-compare -Wno-cast-align WARNS?=6 diff --git a/stand/i386/gptboot/Makefile b/stand/i386/gptboot/Makefile index ed9031c335d5..ea656da635ab 100644 --- a/stand/i386/gptboot/Makefile +++ b/stand/i386/gptboot/Makefile @@ -30,6 +30,7 @@ CFLAGS+=-DBOOTPROG=\"gptboot\" \ -I${LDRSRC} \ -I${BOOTSRC}/i386/common \ -I${BOOTSRC}/i386/boot2 \ + -DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib \ -Wall -Waggregate-return -Wbad-function-cast -Wno-cast-align \ -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \ diff --git a/stand/i386/gptzfsboot/Makefile b/stand/i386/gptzfsboot/Makefile index ecb24e10c6d4..fb5c801d8bcd 100644 --- a/stand/i386/gptzfsboot/Makefile +++ b/stand/i386/gptzfsboot/Makefile @@ -32,6 +32,7 @@ CFLAGS+=-DBOOTPROG=\"gptzfsboot\" \ -I${SYSDIR}/cddl/contrib/opensolaris/common/lz4 \ -I${BOOTSRC}/i386/btx/lib \ -I${BOOTSRC}/i386/boot2 \ + -DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib \ -Wall -Waggregate-return -Wbad-function-cast \ -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \ diff --git a/stand/libsa/crc32.c b/stand/libsa/crc32.c deleted file mode 100644 index 1a3e3a3329fe..000000000000 --- a/stand/libsa/crc32.c +++ /dev/null @@ -1,108 +0,0 @@ -/*- - * COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or - * code or tables extracted from it, as desired without restriction. - */ - -/* - * First, the polynomial itself and its table of feedback terms. The - * polynomial is - * X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 - * - * Note that we take it "backwards" and put the highest-order term in - * the lowest-order bit. The X^32 term is "implied"; the LSB is the - * X^31 term, etc. The X^0 term (usually shown as "+1") results in - * the MSB being 1 - * - * Note that the usual hardware shift register implementation, which - * is what we're using (we're merely optimizing it by doing eight-bit - * chunks at a time) shifts bits into the lowest-order term. In our - * implementation, that means shifting towards the right. Why do we - * do it this way? Because the calculated CRC must be transmitted in - * order from highest-order term to lowest-order term. UARTs transmit - * characters in order from LSB to MSB. By storing the CRC this way - * we hand it to the UART in the order low-byte to high-byte; the UART - * sends each low-bit to hight-bit; and the result is transmission bit - * by bit from highest- to lowest-order term without requiring any bit - * shuffling on our part. Reception works similarly - * - * The feedback terms table consists of 256, 32-bit entries. Notes - * - * The table can be generated at runtime if desired; code to do so - * is shown later. It might not be obvious, but the feedback - * terms simply represent the results of eight shift/xor opera - * tions for all combinations of data and CRC register values - * - * The values must be right-shifted by eight bits by the "updcrc - * logic; the shift must be unsigned (bring in zeroes). On some - * hardware you could probably optimize the shift in assembler by - * using byte-swap instructions - * polynomial $edb88320 - * - * - * CRC32 code derived from work by Gary S. Brown. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> - -#include "crc32.h" - -static const uint32_t crc32_tab[] = { - 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, - 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, - 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, - 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, - 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, - 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, - 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, - 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, - 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, - 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, - 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, - 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, - 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, - 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, - 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, - 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, - 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, - 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, - 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, - 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, - 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, - 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, - 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, - 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, - 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, - 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, - 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, - 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, - 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, - 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, - 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, - 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, - 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, - 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, - 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, - 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, - 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, - 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, - 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, - 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, - 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, - 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, - 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d -}; - -uint32_t -crc32(const void *buf, size_t size) -{ - const uint8_t *p = buf; - uint32_t crc; - - crc = ~0U; - while (size--) - crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8); - return (crc ^ ~0U); -} diff --git a/stand/libsa/crc32.h b/stand/libsa/crc32.h deleted file mode 100644 index adfd628671aa..000000000000 --- a/stand/libsa/crc32.h +++ /dev/null @@ -1,13 +0,0 @@ -/*- - * COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or - * code or tables extracted from it, as desired without restriction. - * - * $FreeBSD$ - */ - -#ifndef _CRC32_H_ -#define _CRC32_H_ - -uint32_t crc32(const void *buf, size_t size); - -#endif /* !_CRC32_H_ */ diff --git a/stand/libsa/gpt.c b/stand/libsa/gpt.c index 25db6b6d7d9c..46e67a9c9a2d 100644 --- a/stand/libsa/gpt.c +++ b/stand/libsa/gpt.c @@ -35,7 +35,7 @@ __FBSDID("$FreeBSD$"); #endif #include "stand.h" -#include "crc32.h" +#include "zlib.h" #include "drv.h" #include "gpt.h" @@ -76,9 +76,12 @@ gptupdate(const char *which, struct dsk *dskp, struct gpt_hdr *hdr, BOOTPROG, which); return; } - hdr->hdr_crc_table = crc32(table, hdr->hdr_entries * hdr->hdr_entsz); - hdr->hdr_crc_self = 0; - hdr->hdr_crc_self = crc32(hdr, hdr->hdr_size); + hdr->hdr_crc_table = crc32(0, Z_NULL, 0); + hdr->hdr_crc_table = crc32(hdr->hdr_crc_table, (const Bytef *)table, + hdr->hdr_entries * hdr->hdr_entsz); + hdr->hdr_crc_self = crc32(0, Z_NULL, 0);; + hdr->hdr_crc_self = crc32(hdr->hdr_crc_self, (const Bytef *)hdr, + hdr->hdr_size); bzero(secbuf, DEV_BSIZE); bcopy(hdr, secbuf, hdr->hdr_size); if (drvwrite(dskp, secbuf, hdr->hdr_lba_self, 1)) { @@ -198,8 +201,9 @@ gptread_hdr(const char *which, struct dsk *dskp, struct gpt_hdr *hdr, return (-1); } crc = hdr->hdr_crc_self; - hdr->hdr_crc_self = 0; - if (crc32(hdr, hdr->hdr_size) != crc) { + hdr->hdr_crc_self = crc32(0, Z_NULL, 0); + if (crc32(hdr->hdr_crc_self, (const Bytef *)hdr, hdr->hdr_size) != + crc) { printf("%s: %s GPT header checksum mismatch\n", BOOTPROG, which); return (-1); @@ -265,9 +269,12 @@ gptbootconv(const char *which, struct dsk *dskp, struct gpt_hdr *hdr, } if (!table_updated) return; - hdr->hdr_crc_table = crc32(table, hdr->hdr_entries * hdr->hdr_entsz); - hdr->hdr_crc_self = 0; - hdr->hdr_crc_self = crc32(hdr, hdr->hdr_size); + hdr->hdr_crc_table = crc32(0, Z_NULL, 0); + hdr->hdr_crc_table = crc32(hdr->hdr_crc_table, (const Bytef *)table, + hdr->hdr_entries * hdr->hdr_entsz); + hdr->hdr_crc_self = crc32(0, Z_NULL, 0); + hdr->hdr_crc_self = crc32(hdr->hdr_crc_self, (const Bytef *)hdr, + hdr->hdr_size); bzero(secbuf, DEV_BSIZE); bcopy(hdr, secbuf, hdr->hdr_size); if (drvwrite(dskp, secbuf, hdr->hdr_lba_self, 1)) @@ -305,7 +312,8 @@ gptread_table(const char *which, struct dsk *dskp, struct gpt_hdr *hdr, break; slba++; } - if (crc32(table, nent * hdr->hdr_entsz) != hdr->hdr_crc_table) { + if (crc32(0, (const Bytef *)table, nent * hdr->hdr_entsz) != + hdr->hdr_crc_table) { printf("%s: %s GPT table checksum mismatch\n", BOOTPROG, which); return (-1); } diff --git a/stand/loader.mk b/stand/loader.mk index fc580f578997..d5b8b478fa14 100644 --- a/stand/loader.mk +++ b/stand/loader.mk @@ -31,6 +31,7 @@ SRCS+= metadata.c .endif .if ${LOADER_DISK_SUPPORT:Uyes} == "yes" +CFLAGS.part.c+= -DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib SRCS+= disk.c part.c vdisk.c .endif diff --git a/stand/uboot/lib/Makefile b/stand/uboot/lib/Makefile index 19644842a8d8..e56cf4f0b370 100644 --- a/stand/uboot/lib/Makefile +++ b/stand/uboot/lib/Makefile @@ -10,6 +10,8 @@ WARNS?= 2 SRCS= console.c copy.c devicename.c elf_freebsd.c glue.c SRCS+= module.c net.c reboot.c time.c +CFLAGS.glue.c+= -DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib + .if ${LOADER_DISK_SUPPORT:Uyes} == "yes" SRCS+= disk.c .endif diff --git a/stand/uboot/lib/glue.c b/stand/uboot/lib/glue.c index 016d435b345e..83c0e3da41a5 100644 --- a/stand/uboot/lib/glue.c +++ b/stand/uboot/lib/glue.c @@ -29,7 +29,7 @@ __FBSDID("$FreeBSD$"); #include <sys/types.h> -#include <crc32.h> +#include <zlib.h> #include <stand.h> #include "api_public.h" #include "glue.h" @@ -57,9 +57,9 @@ valid_sig(struct api_signature *sig) * produced */ s = *sig; - s.checksum = 0; + s.checksum = crc32(0, Z_NULL, 0); - checksum = crc32((void *)&s, sizeof(struct api_signature)); + checksum = crc32(s.checksum, (void *)&s, sizeof(struct api_signature)); if (checksum != sig->checksum) return (0);
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