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Commit f1f88348 authored by Mike Hibler's avatar Mike Hibler
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Merge branch 'imagezip-gpt'

parents a40fb744 e3209e0f
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Makeconf.in
View file @ f1f88348
#
# Copyright (c) 2000-2012 University of Utah and the Flux Group.
# Copyright (c) 2000-2014 University of Utah and the Flux Group.
#
# {{{EMULAB-LICENSE
#
......@@ -120,4 +120,4 @@ MERGE_BUILD_SANDBOX = @MERGE_BUILD_SANDBOX@
EXP_VIS_SUPPORT = @EXP_VIS_SUPPORT@
TESTBED_LIBSRCDIR = ${TESTBED_SRCDIR}/clientside/lib
TESTBED_LIBOBJDIR = ${OBJDIR}/clientside/lib
TESTBED_IMAGEZIPSRCDIR = ${OBJDIR}/clientside/os/imagezip
TESTBED_IMAGEZIPSRCDIR = ${TESTBED_SRCDIR}/clientside/os/imagezip
clientside/Makeconf.in
View file @ f1f88348
#
# Copyright (c) 2000-2012 University of Utah and the Flux Group.
# Copyright (c) 2000-2014 University of Utah and the Flux Group.
#
# {{{EMULAB-LICENSE
#
......@@ -72,4 +72,4 @@ ELVIN_COMPAT = @ELVIN_COMPAT@
WITH_EMULAB = @WITH_EMULAB@
TESTBED_LIBSRCDIR = ${TESTBED_SRCDIR}/lib
TESTBED_LIBOBJDIR = ${OBJDIR}/lib
TESTBED_IMAGEZIPSRCDIR = ${OBJDIR}/os/imagezip
TESTBED_IMAGEZIPSRCDIR = ${TESTBED_SRCDIR}/os/imagezip
clientside/configure
View file @ f1f88348
......@@ -4553,6 +4553,8 @@ outfiles="Makeconf GNUmakefile setversion \
os/growdisk/GNUmakefile \
os/zapdisk/GNUmakefile \
os/imagezip/GNUmakefile \
os/imagezip/mbr/GNUmakefile \
os/imagezip/gpt/GNUmakefile \
os/imagezip/ffs/GNUmakefile \
os/imagezip/extfs/GNUmakefile \
$winfiles \
......
clientside/configure.ac
View file @ f1f88348
......@@ -290,6 +290,8 @@ outfiles="Makeconf GNUmakefile setversion \
os/growdisk/GNUmakefile \
os/zapdisk/GNUmakefile \
os/imagezip/GNUmakefile \
os/imagezip/mbr/GNUmakefile \
os/imagezip/gpt/GNUmakefile \
os/imagezip/ffs/GNUmakefile \
os/imagezip/extfs/GNUmakefile \
$winfiles \
......
clientside/os/frisbee.redux/GNUmakefile.in
View file @ f1f88348
......@@ -84,7 +84,7 @@ subboss:
include $(TESTBED_SRCDIR)/GNUmakerules
FRISBEEDIR = $(TESTBED_IMAGEZIPSRCDIR)
IZSRCDIR = $(TESTBED_IMAGEZIPSRCDIR)
SHAREDOBJS = log.o network.o trace.o utils.o
......@@ -107,7 +107,7 @@ CLIENTLIBS = -lrt -lz $(PTHREADLIBS)
else
CLIENTLIBS = -lz $(PTHREADLIBS)
endif
CLIENTOBJS = client.o frisbee.o checksum.o disksize.o $(SHAREDOBJS)
CLIENTOBJS = client.o frisbee.o mbr.o checksum.o disksize.o $(SHAREDOBJS)
SERVERFLAGS = $(CFLAGS)
SERVERLIBS = $(PTHREADLIBS)
......@@ -152,7 +152,7 @@ endif
CFLAGS = -O2 -g -Wall -fno-builtin-log $(LDSTATIC) $(PTHREADCFLAGS) -DSTATS -DMASTER_SERVER
LDFLAGS = $(LDSTATIC)
IUZFLAGS = -DFRISBEE
IUZFLAGS = -DFRISBEE -I$(IZSRCDIR)
IUZLIBS =
ifeq ($(WITH_CRYPTO),1)
......@@ -257,17 +257,21 @@ log.o: $(SRCDIR)/log.c decls.h log.h
event.o: $(SRCDIR)/event.c decls.h log.h event.h
$(CC) $(EVENTFLAGS) -c $(SRCDIR)/event.c
$(FRISBEEDIR)/imageunzip.c: $(FRISBEEDIR)/imagehdr.h $(FRISBEEDIR)/queue.h $(FRISBEEDIR)/checksum.h
$(FRISBEEDIR)/checksum.c: $(FRISBEEDIR)/imagehdr.h $(FRISBEEDIR)/checksum.h
$(IZSRCDIR)/imageunzip.c: $(IZSRCDIR)/imagehdr.h $(IZSRCDIR)/queue.h $(IZSRCDIR)/checksum.h
$(IZSRCDIR)/checksum.c: $(IZSRCDIR)/imagehdr.h $(IZSRCDIR)/checksum.h
$(IZSRCDIR)/mbr/mbr.c: $(IZSRCDIR)/imagehdr.h $(IZSRCDIR)/sliceinfo.h $(IZSRCDIR)/mbr/mbr.h
disksize.o: $(FRISBEEDIR)/disksize.c
$(CC) -c $(CFLAGS) $(IUZFLAGS) -I$(FRISBEEDIR) -o disksize.o $<
disksize.o: $(IZSRCDIR)/disksize.c
$(CC) -c $(CFLAGS) $(IUZFLAGS) -o disksize.o $<
checksum.o: $(FRISBEEDIR)/checksum.c
$(CC) -c $(CFLAGS) $(IUZFLAGS) -I$(FRISBEEDIR) -o checksum.o $<
checksum.o: $(IZSRCDIR)/checksum.c
$(CC) -c $(CFLAGS) $(IUZFLAGS) -o checksum.o $<
frisbee.o: $(FRISBEEDIR)/imageunzip.c
$(CC) -c $(CFLAGS) $(IUZFLAGS) -I$(FRISBEEDIR) -o frisbee.o $<
mbr.o: $(IZSRCDIR)/mbr/mbr.c
$(CC) -c $(CFLAGS) $(IUZFLAGS) -I$(IZSRCDIR)/mbr -o mbr.o $<
frisbee.o: $(IZSRCDIR)/imageunzip.c
$(CC) -c $(CFLAGS) $(IUZFLAGS) -I$(IZSRCDIR) -o frisbee.o $<
client.o: decls.h log.h utils.h trace.h
server.o: decls.h log.h utils.h trace.h
......
clientside/os/imagezip/GNUmakefile.in
View file @ f1f88348
......@@ -28,11 +28,18 @@ SUBDIR = $(subst $(TESTBED_SRCDIR)/,,$(SRCDIR))
DISTFILES = global.h imagehdr.h queue.h sliceinfo.h \
imagedump.c imagedump.8 imagezip.c imagezip.8 \
imageunzip.c crc.c checksum.c disksize.c imageunzip.8 \
mbr/*.[hc] gpt/*.[hc] \
extfs/*.[hc] fat/*.[hc] ffs/*.[hc] \
ntfs/*.[hc] hashmap/*.[hc]
EXPANDCOPYRIGHT = /usr/site/lib/copyright/expand-copyr
#
# At least support MBR partitioning
#
WITH_MBR = 1
WITH_GPT = 1
#
# Support encrypted and signed-checksumed images.
# Requires openssl libraries.
......@@ -143,6 +150,21 @@ ifeq ($(WITH_V3COMPAT),1)
CFLAGS += -DWITH_V3COMPAT
endif
# MBR
ifeq ($(WITH_MBR),1)
CFLAGS += -DWITH_MBR
SUBDIRS += mbr
ZIPLIBS += mbr/libmbr.a
UNZIPLIBS += mbr/libmbr.a
endif
# GPT
ifeq ($(WITH_GPT),1)
CFLAGS += -DWITH_GPT
SUBDIRS += gpt
ZIPLIBS += gpt/libgpt.a
endif
# UFS/UFS2
ifeq ($(WITH_FFS),1)
CFLAGS += -DWITH_FFS
......@@ -208,13 +230,13 @@ endif
include $(TESTBED_SRCDIR)/GNUmakerules
imagezip: $(SUBDIRS) imagezip.o disksize.o checksum.o version.o $(ZIPLIBS)
$(CC) $(CFLAGS) imagezip.o disksize.o checksum.o version.o $(ZIPLIBS) $(LIBS) -o imagezip
imagezip: $(SUBDIRS) imagezip.o sliceinfo.o disksize.o checksum.o version.o $(ZIPLIBS)
$(CC) $(CFLAGS) imagezip.o sliceinfo.o disksize.o checksum.o version.o $(ZIPLIBS) $(LIBS) -o imagezip
imagezip.o: imagezip.c
$(CC) -c $(ZIPCFLAGS) -o imagezip.o $<
imageunzip: imageunzip.o disksize.o checksum.o crc.o version.o
imageunzip: mbr imageunzip.o disksize.o checksum.o crc.o version.o
$(CC) $(CFLAGS) imageunzip.o disksize.o checksum.o crc.o version.o $(UNZIPLIBS) -o imageunzip
imageunzip.o: imageunzip.c
......@@ -229,6 +251,9 @@ imagehash: imagehash.o version.o
imagehash.o: imagehash.c
$(CC) -c $(HASHCFLAGS) -o imagehash.o $<
sizetest: disksize.c
$(CC) -DTEST $< -o sizetest
$(SUBDIRS):
@$(MAKE) SUBDIRCFLAGS="$(SUBDIRCFLAGS)" -C $@ all
......
clientside/os/imagezip/disksize.c
View file @ f1f88348
/*
* Copyright (c) 2000-2006 University of Utah and the Flux Group.
* Copyright (c) 2000-2014 University of Utah and the Flux Group.
*
* {{{EMULAB-LICENSE
*
......@@ -25,6 +25,7 @@
* Determine the size of the target disk in sectors.
*/
#include <inttypes.h>
#include <unistd.h>
#include <stdio.h>
......@@ -41,7 +42,7 @@
#endif
#endif
unsigned long
uint64_t
getdisksize(int fd)
{
unsigned long disksize = 0;
......@@ -54,6 +55,9 @@ getdisksize(int fd)
rv = ioctl(fd, BLKGETSIZE, &disksize);
if (rv < 0)
disksize = 0;
#ifdef TEST
fprintf(stderr, "Linux BLKGETSIZE returned %lu\n", disksize);
#endif
}
#else
#ifdef DIOCGMEDIASIZE
......@@ -66,6 +70,9 @@ getdisksize(int fd)
rv = ioctl(fd, DIOCGMEDIASIZE, &dsize);
if (rv >= 0)
disksize = (unsigned long)(dsize / ssize);
#ifdef TEST
fprintf(stderr, "BSD BIOCGMEDIASIZE returned %lu\n", disksize);
#endif
}
#else
#ifdef DIOCGDINFO
......@@ -76,6 +83,9 @@ getdisksize(int fd)
rv = ioctl(fd, DIOCGDINFO, &label);
if (rv >= 0)
disksize = label.d_secperunit;
#ifdef TEST
fprintf(stderr, "BSD DIOCGDINFO returned %lu\n", disksize);
#endif
}
#endif
#endif
......@@ -93,6 +103,10 @@ getdisksize(int fd)
lastoff = lseek(fd, (off_t)0, SEEK_END);
if (lastoff > 0)
disksize = (unsigned long)(lastoff / ssize);
#ifdef TEST
fprintf(stderr, "lseek SEEK_END returned %lu\n", disksize);
#endif
}
/*
......@@ -111,3 +125,33 @@ getdisksize(int fd)
return disksize;
}
#ifdef TEST
#include <fcntl.h>
int
main(int argc, char **argv)
{
uint64_t dsize;
int fd;
if (argc != 2) {
fprintf(stderr, "Usage: %s disk\n", argv[0]);
return 1;
}
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
fprintf(stderr, "Could not open '%s'\n", argv[1]);
return 1;
}
dsize = getdisksize(fd);
close(fd);
fprintf(stderr, "%s: size is %llu sectors\n",
argv[1], (unsigned long long)dsize);
return 0;
}
#endif
clientside/os/imagezip/extfs/extfs.c
View file @ f1f88348
/*
* Copyright (c) 2000-2012 University of Utah and the Flux Group.
* Copyright (c) 2000-2014 University of Utah and the Flux Group.
*
* {{{EMULAB-LICENSE
*
......@@ -49,7 +49,7 @@ extern int fixup_lilo(int slice, int stype, u_int32_t start, u_int32_t size,
* slice, so we have to add the starting sector to everything.
*/
int
read_linuxslice(int slice, int stype, u_int32_t start, u_int32_t size,
read_linuxslice(int slice, iz_type stype, iz_lba start, iz_size size,
char *sname, int infd)
{
#define LINUX_SUPERBLOCK_OFFSET 1024
......@@ -73,8 +73,8 @@ read_linuxslice(int slice, int stype, u_int32_t start, u_int32_t size,
assert((sizeof(fs) & ~LINUX_SUPERBLOCK_SIZE) == 0);
if (debug)
fprintf(stderr, " P%d %s Linux Slice)\n",
dosslice, rval ? "(Bootable" : "(");
fprintf(stderr, " P%d %sLinux Slice)\n",
dosslice, rval ? "(Bootable " : "(");
/*
* Skip ahead to the superblock.
......@@ -359,7 +359,7 @@ read_ext4group(struct ext4_super_block *super,
* bit of it. The rest of it does not need to be written to disk.
*/
int
read_linuxswap(int slice, int stype, u_int32_t start, u_int32_t size,
read_linuxswap(int slice, iz_type stype, iz_lba start, iz_size size,
char *sname, int infd)
{
if (debug) {
......
clientside/os/imagezip/fat/fat_glue.c
View file @ f1f88348
/*
* Copyright (c) 2003-2005 University of Utah and the Flux Group.
* Copyright (c) 2003-2014 University of Utah and the Flux Group.
*
* {{{EMULAB-LICENSE
*
......@@ -39,7 +39,7 @@ static u_int32_t fat_offset, fat_limit;
static int fatsecpersec;
int
read_fatslice(int slice, int stype, u_int32_t start, u_int32_t size,
read_fatslice(int slice, iz_type stype, iz_lba start, iz_size size,
char *sfilename, int infd)
{
struct bootblock boot;
......
clientside/os/imagezip/ffs/ffs.c
View file @ f1f88348
......@@ -50,6 +50,9 @@
#undef CLEAR_FREE_INODES
#endif
static int _read_bsdslice(int slice, iz_type bsdtype, iz_lba start,
iz_size size, char *sname, int infd,
int musthavelabel);
static int read_bsdpartition(int infd, struct disklabel *dlabel, int part);
static int read_bsdsblock(int infd, u_int32_t off, int part, struct fs *fsp);
static int read_bsdcg(struct fs *fsp, struct cg *cgp, int cg, u_int32_t off);
......@@ -66,8 +69,35 @@ static int32_t freecount;
* Operate on a BSD slice
*/
int
read_bsdslice(int slice, int bsdtype, u_int32_t start, u_int32_t size,
read_bsdslice(int slice, iz_type bsdtype, iz_lba start, iz_size size,
char *sname, int infd)
{
return _read_bsdslice(slice, bsdtype, start, size, sname, infd, 1);
}
int
read_bsdslicenl(int slice, iz_type bsdtype, iz_lba start, iz_size size,
char *sname, int infd)
{
return _read_bsdslice(slice, bsdtype, start, size, sname, infd, 0);
}
int
read_bsdswapslice(int slice, iz_type bsdtype, iz_lba start, iz_size size,
char *sname, int infd)
{
if (debug)
fprintf(stderr, " P%d (FreeBSD Swap Slice)\n", slice + 1);
/* skip the whole thing */
addskip(start, size);
return 0;
}
static int
_read_bsdslice(int slice, iz_type bsdtype, iz_lba start, iz_size size,
char *sname, int infd, int musthavelabel)
{
int cc, i, rval = 0, npart, absoffset;
union {
......@@ -77,7 +107,9 @@ read_bsdslice(int slice, int bsdtype, u_int32_t start, u_int32_t size,
if (debug)
fprintf(stderr, " P%d (%sBSD Slice)\n", slice + 1,
bsdtype == DOSPTYP_386BSD ? "Free" : "Open");
bsdtype == IZTYPE_OPENBSD ? "Open" :
(bsdtype == IZTYPE_386BSD ? "Free" :
"Unlabeled Free"));
if (devlseek(infd, sectobytes(start), SEEK_SET) < 0) {
warn("Could not seek to beginning of BSD slice");
......@@ -106,24 +138,23 @@ read_bsdslice(int slice, int bsdtype, u_int32_t start, u_int32_t size,
*/
if (dlabel.label.d_magic != DISKMAGIC ||
dlabel.label.d_magic2 != DISKMAGIC) {
#ifdef linux /* not needed in BSD, a fake disklabel is created by the kernel */
/*
* If we were forced with the bsdfs option,
* assume this is a single partition disk like a
* memory or vnode disk. We cons up a disklabel
* This may be a situation in which there is no label
* (e.g., a single partition disk like a memory or
* vnode disk or a GPT partition). We cons up a disklabel
* and let it rip.
*/
if (slice == -1) {
if (!musthavelabel) {
fprintf(stderr, "P%d: WARNING: No disklabel, "
"assuming single partition\n", slice+1);
dlabel.label.d_partitions[0].p_offset = 0;
dlabel.label.d_partitions[0].p_offset = start;
dlabel.label.d_partitions[0].p_size = size;
dlabel.label.d_partitions[0].p_fstype = FS_BSDFFS;
return read_bsdpartition(infd, &dlabel.label, 0);
} else {
warnx("Wrong magic number in BSD disklabel");
return 1;
}
#endif
warnx("Wrong magic number in BSD disklabel");
return 1;
}
/*
......@@ -148,7 +179,7 @@ read_bsdslice(int slice, int bsdtype, u_int32_t start, u_int32_t size,
if (dlabel.label.d_partitions[i].p_size == 0 ||
dlabel.label.d_partitions[i].p_fstype == FS_UNUSED)
continue;
if (bsdtype == DOSPTYP_OPENBSD && i >= 8 && i < 16)
if (bsdtype == IZTYPE_OPENBSD && i >= 8 && i < 16)
continue;
if (dlabel.label.d_partitions[i].p_offset < start) {
fprintf(stderr, "P%d: WARNING: BSD label appears to use relative offsets, adjusting...\n", slice+1);
......@@ -171,7 +202,7 @@ read_bsdslice(int slice, int bsdtype, u_int32_t start, u_int32_t size,
* OpenBSD maps the extended DOS partitions as slices 8-15,
* skip them.
*/
if (bsdtype == DOSPTYP_OPENBSD && i >= 8 && i < 16) {
if (bsdtype == IZTYPE_OPENBSD && i >= 8 && i < 16) {
if (debug)
fprintf(stderr, " '%c' skipping, "
"OpenBSD mapping of DOS partition %d\n",
......@@ -234,7 +265,7 @@ read_bsdslice(int slice, int bsdtype, u_int32_t start, u_int32_t size,
* extended DOS partitions. Also leave raw partition
* alone as it maps the entire disk (not just slice)
*/
if (bsdtype == DOSPTYP_OPENBSD &&
if (bsdtype == IZTYPE_OPENBSD &&
(i == 2 || (i >= 8 && i < 16)))
continue;
......@@ -247,7 +278,7 @@ read_bsdslice(int slice, int bsdtype, u_int32_t start, u_int32_t size,
addfixup(sectobytes(start+LABELSECTOR),
sectobytes(start),
(off_t)sizeof(dlabel.label), &dlabel,
bsdtype == DOSPTYP_OPENBSD ?
bsdtype == IZTYPE_OPENBSD ?
RELOC_OBSDDISKLABEL : RELOC_FBSDDISKLABEL);
}
......
clientside/os/imagezip/global.h
View file @ f1f88348
......@@ -45,8 +45,21 @@ extern int hasfixup(uint32_t soffset, uint32_t ssize);
extern void savefixups(void);
extern void restorefixups(int isempty);
extern void dumpfixups(int verbose, int count);
extern uint64_t getdisksize(int fd);
#ifdef WITH_MBR
extern int parse_mbr(int fd, struct iz_slice *parttab,
iz_lba *startp, iz_size *sizep, int dowarn);
#endif
#ifdef WITH_GPT
extern int parse_gpt(int fd, struct iz_slice *parttab,
iz_lba *startp, iz_size *sizep, int dowarn);
#endif
extern SLICEMAP_PROCESS_PROTO(read_rawslice);
extern SLICEMAP_PROCESS_PROTO(read_bsdslice);
extern SLICEMAP_PROCESS_PROTO(read_bsdslicenl);
extern SLICEMAP_PROCESS_PROTO(read_bsdswapslice);
extern SLICEMAP_PROCESS_PROTO(read_linuxslice);
extern SLICEMAP_PROCESS_PROTO(read_linuxswap);
extern SLICEMAP_PROCESS_PROTO(read_ntfsslice);
......
clientside/os/imagezip/gpt/GNUmakefile.in 0 → 100644
View file @ f1f88348
#
# Copyright (c) 2000-2014 University of Utah and the Flux Group.
#
# {{{EMULAB-LICENSE
#
# This file is part of the Emulab network testbed software.
#
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
#
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
# License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this file. If not, see <http://www.gnu.org/licenses/>.
#
# }}}
#
SRCDIR = @srcdir@
TESTBED_SRCDIR = @top_srcdir@
OBJDIR = @top_builddir@
SUBDIR = $(subst $(TESTBED_SRCDIR)/,,$(SRCDIR))
MAINDIR = $(SRCDIR)/..
include $(OBJDIR)/Makeconf
CFLAGS += -DIMAGEZIP $(SUBDIRCFLAGS) -I$(MAINDIR) -I$(SRCDIR)
all: libgpt.a
include $(TESTBED_SRCDIR)/GNUmakerules
OBJS = gpt.o crc32.o gpt_glue.o
gpt.o: gpt_glue.h gpt.h
crc32.o: crc32.h
gpt_glue.o: gpt_glue.h gpt.h
gpt_glue.o: $(MAINDIR)/global.h $(MAINDIR)/sliceinfo.h $(MAINDIR)/imagehdr.h
libgpt.a: $(OBJS)
$(AR) $(ARFLAGS) $@ $?
$(RANLIB) $@
install:
clean:
rm -f libgpt.a $(OBJS)
clientside/os/imagezip/gpt/crc32.c 0 → 100644
View file @ f1f88348
/*-
* 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: releng/10.1/sys/boot/common/crc32.c 233517 2012-03-26 18:22:04Z marius $");
#include <sys/types.h>
#include <inttypes.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