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-rw-r--r--src/backend/access/transam/twophase.c24
-rw-r--r--src/backend/access/transam/xlog.c50
-rw-r--r--src/backend/access/transam/xlogreader.c12
-rw-r--r--src/backend/replication/logical/snapbuild.c28
-rw-r--r--src/backend/replication/slot.c20
-rw-r--r--src/backend/utils/adt/tsgistidx.c6
-rw-r--r--src/backend/utils/adt/tsquery.c12
-rw-r--r--src/backend/utils/cache/relmapper.c16
-rw-r--r--src/bin/pg_controldata/pg_controldata.c12
-rw-r--r--src/bin/pg_resetxlog/pg_resetxlog.c30
-rw-r--r--src/include/access/xlog_internal.h2
-rw-r--r--src/include/catalog/catversion.h2
-rw-r--r--src/include/utils/pg_crc.h93
-rw-r--r--src/include/utils/pg_crc_tables.h77
14 files changed, 260 insertions, 124 deletions
diff --git a/src/backend/access/transam/twophase.c b/src/backend/access/transam/twophase.c
index d5409a64210..c4069c39a20 100644
--- a/src/backend/access/transam/twophase.c
+++ b/src/backend/access/transam/twophase.c
@@ -847,9 +847,9 @@ TwoPhaseGetDummyProc(TransactionId xid)
* 6. TwoPhaseRecordOnDisk
* 7. ...
* 8. TwoPhaseRecordOnDisk (end sentinel, rmid == TWOPHASE_RM_END_ID)
- * 9. CRC32
+ * 9. checksum (CRC-32C)
*
- * Each segment except the final CRC32 is MAXALIGN'd.
+ * Each segment except the final checksum is MAXALIGN'd.
*/
/*
@@ -1056,11 +1056,11 @@ EndPrepare(GlobalTransaction gxact)
path)));
/* Write data to file, and calculate CRC as we pass over it */
- INIT_CRC32(statefile_crc);
+ INIT_CRC32C(statefile_crc);
for (record = records.head; record != NULL; record = record->next)
{
- COMP_CRC32(statefile_crc, record->data, record->len);
+ COMP_CRC32C(statefile_crc, record->data, record->len);
if ((write(fd, record->data, record->len)) != record->len)
{
CloseTransientFile(fd);
@@ -1070,7 +1070,7 @@ EndPrepare(GlobalTransaction gxact)
}
}
- FIN_CRC32(statefile_crc);
+ FIN_CRC32C(statefile_crc);
/*
* Write a deliberately bogus CRC to the state file; this is just paranoia
@@ -1289,13 +1289,13 @@ ReadTwoPhaseFile(TransactionId xid, bool give_warnings)
return NULL;
}
- INIT_CRC32(calc_crc);
- COMP_CRC32(calc_crc, buf, crc_offset);
- FIN_CRC32(calc_crc);
+ INIT_CRC32C(calc_crc);
+ COMP_CRC32C(calc_crc, buf, crc_offset);
+ FIN_CRC32C(calc_crc);
file_crc = *((pg_crc32 *) (buf + crc_offset));
- if (!EQ_CRC32(calc_crc, file_crc))
+ if (!EQ_CRC32C(calc_crc, file_crc))
{
pfree(buf);
return NULL;
@@ -1540,9 +1540,9 @@ RecreateTwoPhaseFile(TransactionId xid, void *content, int len)
int fd;
/* Recompute CRC */
- INIT_CRC32(statefile_crc);
- COMP_CRC32(statefile_crc, content, len);
- FIN_CRC32(statefile_crc);
+ INIT_CRC32C(statefile_crc);
+ COMP_CRC32C(statefile_crc, content, len);
+ FIN_CRC32C(statefile_crc);
TwoPhaseFilePath(path, xid);
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 3c9aeaec1e7..3160db72458 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -1059,9 +1059,9 @@ begin:;
* the whole record in the order: rdata, then backup blocks, then record
* header.
*/
- INIT_CRC32(rdata_crc);
+ INIT_CRC32C(rdata_crc);
for (rdt = rdata; rdt != NULL; rdt = rdt->next)
- COMP_CRC32(rdata_crc, rdt->data, rdt->len);
+ COMP_CRC32C(rdata_crc, rdt->data, rdt->len);
/*
* Construct record header (prev-link is filled in later, after reserving
@@ -1076,7 +1076,7 @@ begin:;
rechdr->xl_info = info;
rechdr->xl_rmid = rmid;
rechdr->xl_prev = InvalidXLogRecPtr;
- COMP_CRC32(rdata_crc, ((char *) rechdr), offsetof(XLogRecord, xl_prev));
+ COMP_CRC32C(rdata_crc, ((char *) rechdr), offsetof(XLogRecord, xl_prev));
hdr_rdt.next = rdata;
hdr_rdt.data = (char *) rechdr;
@@ -1193,8 +1193,8 @@ begin:;
* Now that xl_prev has been filled in, finish CRC calculation of the
* record header.
*/
- COMP_CRC32(rdata_crc, ((char *) &rechdr->xl_prev), sizeof(XLogRecPtr));
- FIN_CRC32(rdata_crc);
+ COMP_CRC32C(rdata_crc, ((char *) &rechdr->xl_prev), sizeof(XLogRecPtr));
+ FIN_CRC32C(rdata_crc);
rechdr->xl_crc = rdata_crc;
/*
@@ -4344,11 +4344,11 @@ WriteControlFile(void)
ControlFile->float8ByVal = FLOAT8PASSBYVAL;
/* Contents are protected with a CRC */
- INIT_CRC32(ControlFile->crc);
- COMP_CRC32(ControlFile->crc,
- (char *) ControlFile,
- offsetof(ControlFileData, crc));
- FIN_CRC32(ControlFile->crc);
+ INIT_CRC32C(ControlFile->crc);
+ COMP_CRC32C(ControlFile->crc,
+ (char *) ControlFile,
+ offsetof(ControlFileData, crc));
+ FIN_CRC32C(ControlFile->crc);
/*
* We write out PG_CONTROL_SIZE bytes into pg_control, zero-padding the
@@ -4444,13 +4444,13 @@ ReadControlFile(void)
errhint("It looks like you need to initdb.")));
/* Now check the CRC. */
- INIT_CRC32(crc);
- COMP_CRC32(crc,
- (char *) ControlFile,
- offsetof(ControlFileData, crc));
- FIN_CRC32(crc);
+ INIT_CRC32C(crc);
+ COMP_CRC32C(crc,
+ (char *) ControlFile,
+ offsetof(ControlFileData, crc));
+ FIN_CRC32C(crc);
- if (!EQ_CRC32(crc, ControlFile->crc))
+ if (!EQ_CRC32C(crc, ControlFile->crc))
ereport(FATAL,
(errmsg("incorrect checksum in control file")));
@@ -4593,11 +4593,11 @@ UpdateControlFile(void)
{
int fd;
- INIT_CRC32(ControlFile->crc);
- COMP_CRC32(ControlFile->crc,
- (char *) ControlFile,
- offsetof(ControlFileData, crc));
- FIN_CRC32(ControlFile->crc);
+ INIT_CRC32C(ControlFile->crc);
+ COMP_CRC32C(ControlFile->crc,
+ (char *) ControlFile,
+ offsetof(ControlFileData, crc));
+ FIN_CRC32C(ControlFile->crc);
fd = BasicOpenFile(XLOG_CONTROL_FILE,
O_RDWR | PG_BINARY,
@@ -4975,10 +4975,10 @@ BootStrapXLOG(void)
record->xl_rmid = RM_XLOG_ID;
memcpy(XLogRecGetData(record), &checkPoint, sizeof(checkPoint));
- INIT_CRC32(crc);
- COMP_CRC32(crc, &checkPoint, sizeof(checkPoint));
- COMP_CRC32(crc, (char *) record, offsetof(XLogRecord, xl_crc));
- FIN_CRC32(crc);
+ INIT_CRC32C(crc);
+ COMP_CRC32C(crc, &checkPoint, sizeof(checkPoint));
+ COMP_CRC32C(crc, (char *) record, offsetof(XLogRecord, xl_crc));
+ FIN_CRC32C(crc);
record->xl_crc = crc;
/* Create first XLOG segment file */
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index f06daa2638f..da7ed92941c 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -684,8 +684,8 @@ ValidXLogRecord(XLogReaderState *state, XLogRecord *record, XLogRecPtr recptr)
return false;
}
remaining -= SizeOfXLogRecord + len;
- INIT_CRC32(crc);
- COMP_CRC32(crc, XLogRecGetData(record), len);
+ INIT_CRC32C(crc);
+ COMP_CRC32C(crc, XLogRecGetData(record), len);
/* Add in the backup blocks, if any */
blk = (char *) XLogRecGetData(record) + len;
@@ -722,7 +722,7 @@ ValidXLogRecord(XLogReaderState *state, XLogRecord *record, XLogRecPtr recptr)
return false;
}
remaining -= blen;
- COMP_CRC32(crc, blk, blen);
+ COMP_CRC32C(crc, blk, blen);
blk += blen;
}
@@ -736,10 +736,10 @@ ValidXLogRecord(XLogReaderState *state, XLogRecord *record, XLogRecPtr recptr)
}
/* Finally include the record header */
- COMP_CRC32(crc, (char *) record, offsetof(XLogRecord, xl_crc));
- FIN_CRC32(crc);
+ COMP_CRC32C(crc, (char *) record, offsetof(XLogRecord, xl_crc));
+ FIN_CRC32C(crc);
- if (!EQ_CRC32(record->xl_crc, crc))
+ if (!EQ_CRC32C(record->xl_crc, crc))
{
report_invalid_record(state,
"incorrect resource manager data checksum in record at %X/%X",
diff --git a/src/backend/replication/logical/snapbuild.c b/src/backend/replication/logical/snapbuild.c
index 5e59c6b819b..71c5fe2490a 100644
--- a/src/backend/replication/logical/snapbuild.c
+++ b/src/backend/replication/logical/snapbuild.c
@@ -1517,9 +1517,9 @@ SnapBuildSerialize(SnapBuild *builder, XLogRecPtr lsn)
ondisk->magic = SNAPBUILD_MAGIC;
ondisk->version = SNAPBUILD_VERSION;
ondisk->length = needed_length;
- INIT_CRC32(ondisk->checksum);
- COMP_CRC32(ondisk->checksum,
- ((char *) ondisk) + SnapBuildOnDiskNotChecksummedSize,
+ INIT_CRC32C(ondisk->checksum);
+ COMP_CRC32C(ondisk->checksum,
+ ((char *) ondisk) + SnapBuildOnDiskNotChecksummedSize,
SnapBuildOnDiskConstantSize - SnapBuildOnDiskNotChecksummedSize);
ondisk_c += sizeof(SnapBuildOnDisk);
@@ -1531,20 +1531,20 @@ SnapBuildSerialize(SnapBuild *builder, XLogRecPtr lsn)
ondisk->builder.running.xip = NULL;
ondisk->builder.committed.xip = NULL;
- COMP_CRC32(ondisk->checksum,
- &ondisk->builder,
- sizeof(SnapBuild));
+ COMP_CRC32C(ondisk->checksum,
+ &ondisk->builder,
+ sizeof(SnapBuild));
/* copy running xacts */
sz = sizeof(TransactionId) * builder->running.xcnt_space;
memcpy(ondisk_c, builder->running.xip, sz);
- COMP_CRC32(ondisk->checksum, ondisk_c, sz);
+ COMP_CRC32C(ondisk->checksum, ondisk_c, sz);
ondisk_c += sz;
/* copy committed xacts */
sz = sizeof(TransactionId) * builder->committed.xcnt;
memcpy(ondisk_c, builder->committed.xip, sz);
- COMP_CRC32(ondisk->checksum, ondisk_c, sz);
+ COMP_CRC32C(ondisk->checksum, ondisk_c, sz);
ondisk_c += sz;
/* we have valid data now, open tempfile and write it there */
@@ -1672,8 +1672,8 @@ SnapBuildRestore(SnapBuild *builder, XLogRecPtr lsn)
(errmsg("snapbuild state file \"%s\" has unsupported version %u instead of %u",
path, ondisk.version, SNAPBUILD_VERSION)));
- INIT_CRC32(checksum);
- COMP_CRC32(checksum,
+ INIT_CRC32C(checksum);
+ COMP_CRC32C(checksum,
((char *) &ondisk) + SnapBuildOnDiskNotChecksummedSize,
SnapBuildOnDiskConstantSize - SnapBuildOnDiskNotChecksummedSize);
@@ -1687,7 +1687,7 @@ SnapBuildRestore(SnapBuild *builder, XLogRecPtr lsn)
errmsg("could not read file \"%s\", read %d of %d: %m",
path, readBytes, (int) sizeof(SnapBuild))));
}
- COMP_CRC32(checksum, &ondisk.builder, sizeof(SnapBuild));
+ COMP_CRC32C(checksum, &ondisk.builder, sizeof(SnapBuild));
/* restore running xacts information */
sz = sizeof(TransactionId) * ondisk.builder.running.xcnt_space;
@@ -1701,7 +1701,7 @@ SnapBuildRestore(SnapBuild *builder, XLogRecPtr lsn)
errmsg("could not read file \"%s\", read %d of %d: %m",
path, readBytes, (int) sz)));
}
- COMP_CRC32(checksum, ondisk.builder.running.xip, sz);
+ COMP_CRC32C(checksum, ondisk.builder.running.xip, sz);
/* restore committed xacts information */
sz = sizeof(TransactionId) * ondisk.builder.committed.xcnt;
@@ -1715,12 +1715,12 @@ SnapBuildRestore(SnapBuild *builder, XLogRecPtr lsn)
errmsg("could not read file \"%s\", read %d of %d: %m",
path, readBytes, (int) sz)));
}
- COMP_CRC32(checksum, ondisk.builder.committed.xip, sz);
+ COMP_CRC32C(checksum, ondisk.builder.committed.xip, sz);
CloseTransientFile(fd);
/* verify checksum of what we've read */
- if (!EQ_CRC32(checksum, ondisk.checksum))
+ if (!EQ_CRC32C(checksum, ondisk.checksum))
ereport(ERROR,
(errcode_for_file_access(),
errmsg("snapbuild state file %s: checksum mismatch, is %u, should be %u",
diff --git a/src/backend/replication/slot.c b/src/backend/replication/slot.c
index f355f13d293..2c3ea555d09 100644
--- a/src/backend/replication/slot.c
+++ b/src/backend/replication/slot.c
@@ -993,7 +993,7 @@ SaveSlotToPath(ReplicationSlot *slot, const char *dir, int elevel)
}
cp.magic = SLOT_MAGIC;
- INIT_CRC32(cp.checksum);
+ INIT_CRC32C(cp.checksum);
cp.version = 1;
cp.length = ReplicationSlotOnDiskDynamicSize;
@@ -1003,9 +1003,9 @@ SaveSlotToPath(ReplicationSlot *slot, const char *dir, int elevel)
SpinLockRelease(&slot->mutex);
- COMP_CRC32(cp.checksum,
- (char *) (&cp) + ReplicationSlotOnDiskConstantSize,
- ReplicationSlotOnDiskDynamicSize);
+ COMP_CRC32C(cp.checksum,
+ (char *) (&cp) + ReplicationSlotOnDiskConstantSize,
+ ReplicationSlotOnDiskDynamicSize);
if ((write(fd, &cp, sizeof(cp))) != sizeof(cp))
{
@@ -1181,13 +1181,13 @@ RestoreSlotFromDisk(const char *name)
CloseTransientFile(fd);
- /* now verify the CRC32 */
- INIT_CRC32(checksum);
- COMP_CRC32(checksum,
- (char *) &cp + ReplicationSlotOnDiskConstantSize,
- ReplicationSlotOnDiskDynamicSize);
+ /* now verify the CRC */
+ INIT_CRC32C(checksum);
+ COMP_CRC32C(checksum,
+ (char *) &cp + ReplicationSlotOnDiskConstantSize,
+ ReplicationSlotOnDiskDynamicSize);
- if (!EQ_CRC32(checksum, cp.checksum))
+ if (!EQ_CRC32C(checksum, cp.checksum))
ereport(PANIC,
(errmsg("replication slot file %s: checksum mismatch, is %u, should be %u",
path, checksum, cp.checksum)));
diff --git a/src/backend/utils/adt/tsgistidx.c b/src/backend/utils/adt/tsgistidx.c
index 80039189c3f..e9cff4ffb69 100644
--- a/src/backend/utils/adt/tsgistidx.c
+++ b/src/backend/utils/adt/tsgistidx.c
@@ -201,9 +201,9 @@ gtsvector_compress(PG_FUNCTION_ARGS)
{
pg_crc32 c;
- INIT_CRC32(c);
- COMP_CRC32(c, words + ptr->pos, ptr->len);
- FIN_CRC32(c);
+ INIT_LEGACY_CRC32(c);
+ COMP_LEGACY_CRC32(c, words + ptr->pos, ptr->len);
+ FIN_LEGACY_CRC32(c);
*arr = *(int32 *) &c;
arr++;
diff --git a/src/backend/utils/adt/tsquery.c b/src/backend/utils/adt/tsquery.c
index c8011a8ea92..5226bae2d17 100644
--- a/src/backend/utils/adt/tsquery.c
+++ b/src/backend/utils/adt/tsquery.c
@@ -280,9 +280,9 @@ pushValue(TSQueryParserState state, char *strval, int lenval, int16 weight, bool
errmsg("word is too long in tsquery: \"%s\"",
state->buffer)));
- INIT_CRC32(valcrc);
- COMP_CRC32(valcrc, strval, lenval);
- FIN_CRC32(valcrc);
+ INIT_LEGACY_CRC32(valcrc);
+ COMP_LEGACY_CRC32(valcrc, strval, lenval);
+ FIN_LEGACY_CRC32(valcrc);
pushValue_internal(state, valcrc, state->curop - state->op, lenval, weight, prefix);
/* append the value string to state.op, enlarging buffer if needed first */
@@ -883,9 +883,9 @@ tsqueryrecv(PG_FUNCTION_ARGS)
/* Looks valid. */
- INIT_CRC32(valcrc);
- COMP_CRC32(valcrc, val, val_len);
- FIN_CRC32(valcrc);
+ INIT_LEGACY_CRC32(valcrc);
+ COMP_LEGACY_CRC32(valcrc, val, val_len);
+ FIN_LEGACY_CRC32(valcrc);
item->qoperand.weight = weight;
item->qoperand.prefix = (prefix) ? true : false;
diff --git a/src/backend/utils/cache/relmapper.c b/src/backend/utils/cache/relmapper.c
index 95a2689fd42..b6b13308773 100644
--- a/src/backend/utils/cache/relmapper.c
+++ b/src/backend/utils/cache/relmapper.c
@@ -84,7 +84,7 @@ typedef struct RelMapFile
int32 magic; /* always RELMAPPER_FILEMAGIC */
int32 num_mappings; /* number of valid RelMapping entries */
RelMapping mappings[MAX_MAPPINGS];
- int32 crc; /* CRC of all above */
+ pg_crc32 crc; /* CRC of all above */
int32 pad; /* to make the struct size be 512 exactly */
} RelMapFile;
@@ -673,11 +673,11 @@ load_relmap_file(bool shared)
mapfilename)));
/* verify the CRC */
- INIT_CRC32(crc);
- COMP_CRC32(crc, (char *) map, offsetof(RelMapFile, crc));
- FIN_CRC32(crc);
+ INIT_CRC32C(crc);
+ COMP_CRC32C(crc, (char *) map, offsetof(RelMapFile, crc));
+ FIN_CRC32C(crc);
- if (!EQ_CRC32(crc, map->crc))
+ if (!EQ_CRC32C(crc, map->crc))
ereport(FATAL,
(errmsg("relation mapping file \"%s\" contains incorrect checksum",
mapfilename)));
@@ -719,9 +719,9 @@ write_relmap_file(bool shared, RelMapFile *newmap,
if (newmap->num_mappings < 0 || newmap->num_mappings > MAX_MAPPINGS)
elog(ERROR, "attempt to write bogus relation mapping");
- INIT_CRC32(newmap->crc);
- COMP_CRC32(newmap->crc, (char *) newmap, offsetof(RelMapFile, crc));
- FIN_CRC32(newmap->crc);
+ INIT_CRC32C(newmap->crc);
+ COMP_CRC32C(newmap->crc, (char *) newmap, offsetof(RelMapFile, crc));
+ FIN_CRC32C(newmap->crc);
/*
* Open the target file. We prefer to do this before entering the
diff --git a/src/bin/pg_controldata/pg_controldata.c b/src/bin/pg_controldata/pg_controldata.c
index 32cc100fa25..b2e0793eb8f 100644
--- a/src/bin/pg_controldata/pg_controldata.c
+++ b/src/bin/pg_controldata/pg_controldata.c
@@ -178,13 +178,13 @@ main(int argc, char *argv[])
close(fd);
/* Check the CRC. */
- INIT_CRC32(crc);
- COMP_CRC32(crc,
- (char *) &ControlFile,
- offsetof(ControlFileData, crc));
- FIN_CRC32(crc);
+ INIT_CRC32C(crc);
+ COMP_CRC32C(crc,
+ (char *) &ControlFile,
+ offsetof(ControlFileData, crc));
+ FIN_CRC32C(crc);
- if (!EQ_CRC32(crc, ControlFile.crc))
+ if (!EQ_CRC32C(crc, ControlFile.crc))
printf(_("WARNING: Calculated CRC checksum does not match value stored in file.\n"
"Either the file is corrupt, or it has a different layout than this program\n"
"is expecting. The results below are untrustworthy.\n\n"));
diff --git a/src/bin/pg_resetxlog/pg_resetxlog.c b/src/bin/pg_resetxlog/pg_resetxlog.c
index f4c1eafc67c..e224e67ad62 100644
--- a/src/bin/pg_resetxlog/pg_resetxlog.c
+++ b/src/bin/pg_resetxlog/pg_resetxlog.c
@@ -456,13 +456,13 @@ ReadControlFile(void)
((ControlFileData *) buffer)->pg_control_version == PG_CONTROL_VERSION)
{
/* Check the CRC. */
- INIT_CRC32(crc);
- COMP_CRC32(crc,
- buffer,
- offsetof(ControlFileData, crc));
- FIN_CRC32(crc);
+ INIT_CRC32C(crc);
+ COMP_CRC32C(crc,
+ buffer,
+ offsetof(ControlFileData, crc));
+ FIN_CRC32C(crc);
- if (EQ_CRC32(crc, ((ControlFileData *) buffer)->crc))
+ if (EQ_CRC32C(crc, ((ControlFileData *) buffer)->crc))
{
/* Valid data... */
memcpy(&ControlFile, buffer, sizeof(ControlFile));
@@ -747,11 +747,11 @@ RewriteControlFile(void)
ControlFile.xlog_seg_size = XLogSegSize;
/* Contents are protected with a CRC */
- INIT_CRC32(ControlFile.crc);
- COMP_CRC32(ControlFile.crc,
- (char *) &ControlFile,
- offsetof(ControlFileData, crc));
- FIN_CRC32(ControlFile.crc);
+ INIT_CRC32C(ControlFile.crc);
+ COMP_CRC32C(ControlFile.crc,
+ (char *) &ControlFile,
+ offsetof(ControlFileData, crc));
+ FIN_CRC32C(ControlFile.crc);
/*
* We write out PG_CONTROL_SIZE bytes into pg_control, zero-padding the
@@ -1032,10 +1032,10 @@ WriteEmptyXLOG(void)
memcpy(XLogRecGetData(record), &ControlFile.checkPointCopy,
sizeof(CheckPoint));
- INIT_CRC32(crc);
- COMP_CRC32(crc, &ControlFile.checkPointCopy, sizeof(CheckPoint));
- COMP_CRC32(crc, (char *) record, offsetof(XLogRecord, xl_crc));
- FIN_CRC32(crc);
+ INIT_CRC32C(crc);
+ COMP_CRC32C(crc, &ControlFile.checkPointCopy, sizeof(CheckPoint));
+ COMP_CRC32C(crc, (char *) record, offsetof(XLogRecord, xl_crc));
+ FIN_CRC32C(crc);
record->xl_crc = crc;
/* Write the first page */
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h
index 27b98995557..eaa1f9540e2 100644
--- a/src/include/access/xlog_internal.h
+++ b/src/include/access/xlog_internal.h
@@ -55,7 +55,7 @@ typedef struct BkpBlock
/*
* Each page of XLOG file has a header like this:
*/
-#define XLOG_PAGE_MAGIC 0xD07F /* can be used as WAL version indicator */
+#define XLOG_PAGE_MAGIC 0xD080 /* can be used as WAL version indicator */
typedef struct XLogPageHeaderData
{
diff --git a/src/include/catalog/catversion.h b/src/include/catalog/catversion.h
index 69ef30a3596..2c059c88c18 100644
--- a/src/include/catalog/catversion.h
+++ b/src/include/catalog/catversion.h
@@ -53,6 +53,6 @@
*/
/* yyyymmddN */
-#define CATALOG_VERSION_NO 201410071
+#define CATALOG_VERSION_NO 201411041
#endif
diff --git a/src/include/utils/pg_crc.h b/src/include/utils/pg_crc.h
index f43f4aad9dd..f871cba53f2 100644
--- a/src/include/utils/pg_crc.h
+++ b/src/include/utils/pg_crc.h
@@ -7,9 +7,22 @@
* A PAINLESS GUIDE TO CRC ERROR DETECTION ALGORITHMS, available from
* http://www.ross.net/crc/ or several other net sites.
*
- * We use a normal (not "reflected", in Williams' terms) CRC, using initial
- * all-ones register contents and a final bit inversion.
+ * We have three slightly different variants of a 32-bit CRC calculation:
+ * CRC-32C (Castagnoli polynomial), CRC-32 (Ethernet polynomial), and a legacy
+ * CRC-32 version that uses the lookup table in a funny way. They all consist
+ * of four macros:
*
+ * INIT_<variant>(crc)
+ * Initialize a CRC accumulator
+ *
+ * COMP_<variant>(crc, data, len)
+ * Accumulate some (more) bytes into a CRC
+ *
+ * FIN_<variant>(crc)
+ * Finish a CRC calculation
+ *
+ * EQ_<variant>(c1, c2)
+ * Check for equality of two CRCs.
*
* Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
@@ -28,29 +41,81 @@
typedef uint32 pg_crc32;
-/* Initialize a CRC accumulator */
-#define INIT_CRC32(crc) ((crc) = 0xFFFFFFFF)
+/*
+ * CRC calculation using the CRC-32C (Castagnoli) polynomial.
+ *
+ * We use all-ones as the initial register contents and final bit inversion.
+ * This is the same algorithm used e.g. in iSCSI. See RFC 3385 for more
+ * details on the choice of polynomial.
+ */
+#define INIT_CRC32C(crc) ((crc) = 0xFFFFFFFF)
+#define FIN_CRC32C(crc) ((crc) ^= 0xFFFFFFFF)
+#define COMP_CRC32C(crc, data, len) \
+ COMP_CRC32_NORMAL_TABLE(crc, data, len, pg_crc32c_table)
+#define EQ_CRC32C(c1, c2) ((c1) == (c2))
-/* Finish a CRC calculation */
-#define FIN_CRC32(crc) ((crc) ^= 0xFFFFFFFF)
+/*
+ * CRC-32, the same used e.g. in Ethernet.
+ *
+ * This is currently only used in ltree and hstore contrib modules. It uses
+ * the same lookup table as the legacy algorithm below. New code should
+ * use the Castagnoli version instead.
+ */
+#define INIT_TRADITIONAL_CRC32(crc) ((crc) = 0xFFFFFFFF)
+#define FIN_TRADITIONAL_CRC32(crc) ((crc) ^= 0xFFFFFFFF)
+#define COMP_TRADITIONAL_CRC32(crc, data, len) \
+ COMP_CRC32_NORMAL_TABLE(crc, data, len, pg_crc32_table)
+#define EQ_TRADITIONAL_CRC32(c1, c2) ((c1) == (c2))
-/* Accumulate some (more) bytes into a CRC */
-#define COMP_CRC32(crc, data, len) \
-do { \
+/*
+ * The CRC algorithm used for WAL et al in pre-9.5 versions.
+ *
+ * This closely resembles the normal CRC-32 algorithm, but is subtly
+ * different. Using Williams' terms, we use the "normal" table, but with
+ * "reflected" code. That's bogus, but it was like that for years before
+ * anyone noticed. It does not correspond to any polynomial in a normal CRC
+ * algorithm, so it's not clear what the error-detection properties of this
+ * algorithm actually are.
+ *
+ * We still need to carry this around because it is used in a few on-disk
+ * structures that need to be pg_upgradeable. It should not be used in new
+ * code.
+ */
+#define INIT_LEGACY_CRC32(crc) ((crc) = 0xFFFFFFFF)
+#define FIN_LEGACY_CRC32(crc) ((crc) ^= 0xFFFFFFFF)
+#define COMP_LEGACY_CRC32(crc, data, len) \
+ COMP_CRC32_REFLECTED_TABLE(crc, data, len, pg_crc32_table)
+#define EQ_LEGACY_CRC32(c1, c2) ((c1) == (c2))
+
+/*
+ * Common code for CRC computation using a lookup table.
+ */
+#define COMP_CRC32_NORMAL_TABLE(crc, data, len, table) \
+do { \
const unsigned char *__data = (const unsigned char *) (data); \
uint32 __len = (len); \
\
while (__len-- > 0) \
{ \
- int __tab_index = ((int) ((crc) >> 24) ^ *__data++) & 0xFF; \
- (crc) = pg_crc32_table[__tab_index] ^ ((crc) << 8); \
+ int __tab_index = ((int) (crc) ^ *__data++) & 0xFF; \
+ (crc) = table[__tab_index] ^ ((crc) >> 8); \
} \
} while (0)
-/* Check for equality of two CRCs */
-#define EQ_CRC32(c1,c2) ((c1) == (c2))
+#define COMP_CRC32_REFLECTED_TABLE(crc, data, len, table) \
+do { \
+ const unsigned char *__data = (const unsigned char *) (data); \
+ uint32 __len = (len); \
+\
+ while (__len-- > 0) \
+ { \
+ int __tab_index = ((int) ((crc) >> 24) ^ *__data++) & 0xFF; \
+ (crc) = table[__tab_index] ^ ((crc) << 8); \
+ } \
+} while (0)
-/* Constant table for CRC calculation */
+/* Constant tables for CRC-32C and CRC-32 polynomials */
+extern CRCDLLIMPORT const uint32 pg_crc32c_table[];
extern CRCDLLIMPORT const uint32 pg_crc32_table[];
#endif /* PG_CRC_H */
diff --git a/src/include/utils/pg_crc_tables.h b/src/include/utils/pg_crc_tables.h
index f56613776dc..cb6b470885d 100644
--- a/src/include/utils/pg_crc_tables.h
+++ b/src/include/utils/pg_crc_tables.h
@@ -11,9 +11,8 @@
* A PAINLESS GUIDE TO CRC ERROR DETECTION ALGORITHMS, available from
* http://www.ross.net/crc/download/crc_v3.txt or several other net sites.
*
- * We use a normal (not "reflected", in Williams' terms) CRC, using initial
- * all-ones register contents and a final bit inversion.
- *
+ * These lookup tables are for normal, not "reflected", in Williams' terms,
+ * CRC.
*
* Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
@@ -26,6 +25,78 @@
#define PG_CRC_TABLES_H
/*
+ * This table is based on the so-called Castagnoli polynomial (the same
+ * that is used e.g. in iSCSI).
+ */
+const uint32 pg_crc32c_table[256] = {
+ 0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4,
+ 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
+ 0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B,
+ 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
+ 0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B,
+ 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
+ 0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54,
+ 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
+ 0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A,
+ 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
+ 0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5,
+ 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
+ 0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45,
+ 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
+ 0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A,
+ 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
+ 0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48,
+ 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
+ 0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687,
+ 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
+ 0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927,
+ 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
+ 0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8,
+ 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
+ 0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096,
+ 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
+ 0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859,
+ 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
+ 0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9,
+ 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
+ 0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36,
+ 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
+ 0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C,
+ 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
+ 0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043,
+ 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
+ 0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3,
+ 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
+ 0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C,
+ 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
+ 0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652,
+ 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
+ 0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D,
+ 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
+ 0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D,
+ 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
+ 0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2,
+ 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
+ 0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530,
+ 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
+ 0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF,
+ 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
+ 0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F,
+ 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
+ 0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90,
+ 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
+ 0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE,
+ 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
+ 0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321,
+ 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
+ 0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81,
+ 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
+ 0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E,
+ 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351
+};
+
+
+/*
* This table is based on the polynomial
* 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.
* (This is the same polynomial used in Ethernet checksums, for instance.)
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-09 04:53:07 +0000