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Overview
| Comment: | Add support for the ExtendedHeaderSize header field to zonefile. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | zonefile |
| Files: | files | file ages | folders |
| SHA3-256: | 78267a091307e2c29a4fb1606fa9c799 |
| User & Date: | dan 2018-02-19 16:28:42 |
Context
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2018-02-19
| ||
| 21:07 | Add support for invoking encryption hooks to zonefile. And mock encryption method "xor" for testing. check-in: 55cf920c user: dan tags: zonefile | |
| 16:28 | Add support for the ExtendedHeaderSize header field to zonefile. check-in: 78267a09 user: dan tags: zonefile | |
| 14:27 | Modify the zonefile format in order to avoid depending on the filesize to determine the extent of the final frame. See README.md for details. check-in: 4dbe0cba user: dan tags: zonefile | |
Changes
Changes to ext/zonefile/zonefile.c.
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*/
typedef struct ZonefileWrite ZonefileWrite;
struct ZonefileWrite {
ZonefileCompress *pCmpIdx; /* For compressing the index */
ZonefileCompress *pCmpData; /* For compressing each frame */
int encryptionType;
int maxAutoFrameSize;
};
/*
** A structure to store a deserialized zonefile header in.
*/
typedef struct ZonefileHeader ZonefileHeader;
struct ZonefileHeader {
................................................................................
rc = zonefilePrepare(db, &pStmt, &zErr,"SELECT key, value FROM json_each(?)");
if( rc==SQLITE_OK ){
sqlite3_bind_text(pStmt, 1, zJson, -1, SQLITE_STATIC);
}
while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
const char *zKey = (const char*)sqlite3_column_text(pStmt, 0);
int iVal = sqlite3_column_int(pStmt, 1);
if( sqlite3_stricmp("maxAutoFrameSize", zKey)==0 ){
p->maxAutoFrameSize = iVal;
}else
if( sqlite3_stricmp("compressionTypeIndexData", zKey)==0 ){
const char *zName = (const char*)sqlite3_column_text(pStmt, 1);
p->pCmpIdx = zonefileCompress(zName);
if( p->pCmpIdx==0 ){
................................................................................
if( zonefileBufferGrow(pCtx, pTo, nReq) ) return SQLITE_ERROR;
rc = pMethod->xCompress(pCmp, &pTo->a[pTo->n], &nReq, pFrom->a, pFrom->n);
pTo->n += nReq;
if( rc!=SQLITE_OK ){
return rc;
}
}
}
return SQLITE_OK;
}
/*
** Function: zonefile_write(F,T[,J])
*/
................................................................................
/* Create the zonefile header in the in-memory buffer */
memset(aHdr, 0, ZONEFILE_SZ_HEADER);
zonefilePut32(&aHdr[0], ZONEFILE_MAGIC_NUMBER);
aHdr[4] = sWrite.pCmpIdx->eType;
aHdr[5] = sWrite.pCmpData->eType;
iOff = ZONEFILE_SZ_HEADER + sFrameIdx.n + sKeyIdx.n;
zonefilePut32(&aHdr[6], sDict.n ? iOff : 0);
zonefilePut32(&aHdr[10], iOff + sDict.n);
zonefilePut32(&aHdr[14], nFrame);
zonefilePut32(&aHdr[18], nKey);
aHdr[22] = sWrite.encryptionType;
aHdr[23] = 0; /* Encryption key index */
aHdr[24] = 0; /* extended header version */
aHdr[25] = 0; /* extended header size */
assert( ZONEFILE_SZ_HEADER>=26 );
rc = zonefileFileWrite(pFd, aHdr, ZONEFILE_SZ_HEADER);
if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sFrameIdx.a, sFrameIdx.n);
if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sKeyIdx.a, sKeyIdx.n);
if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sDict.a, sDict.n);
if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sData.a, sData.n);
if( rc ){
zonefileCtxError(pCtx, "error writing file \"%s\" (fwrite())", zFile);
goto zone_write_out;
................................................................................
rc = zfFindCompress(pHdr->compressionTypeIndexData, &pCmp, pzErr);
if( rc==SQLITE_OK ){
if( pHdr->byteOffsetDictionary ){
nIdx = pHdr->byteOffsetDictionary - ZONEFILE_SZ_HEADER;
}else{
nIdx = pHdr->byteOffsetFrames - ZONEFILE_SZ_HEADER;
}
aIdx = (u8*)sqlite3_malloc(nIdx);
if( aIdx==0 ){
rc = SQLITE_NOMEM;
}else{
rc = zonefileFileRead(pFd, aIdx, nIdx, ZONEFILE_SZ_HEADER);
}
}
if( rc==SQLITE_OK && pCmp ){
u8 *aUn = 0;
int nUn = 0;
rc = zonefileUncompress(pCmp, 0, aIdx, nIdx, &aUn, &nUn);
................................................................................
u8 *aOff = aSpace;
u8 *aFree = 0;
if( hdr.compressionTypeIndexData ){
int nFree = 0;
rc = zonefileLoadIndex(&hdr, pFd, &aFree, &nFree, &zErr);
if( rc==SQLITE_OK ) aOff = &aFree[4*(iFrame-1)];
}else{
rc = zonefileFileRead(pFd, aOff, 8, ZONEFILE_SZ_HEADER + 4 * (iFrame-1));
}
szFrame = zonefileGet32(&aOff[4]);
if( iFrame>0 ){
iOff = zonefileGet32(aOff);
szFrame = szFrame - iOff;
}
sqlite3_free(aFree);
|
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | | > > > | | > > |
407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 ... 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 ... 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 ... 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 .... 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 .... 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 |
*/
typedef struct ZonefileWrite ZonefileWrite;
struct ZonefileWrite {
ZonefileCompress *pCmpIdx; /* For compressing the index */
ZonefileCompress *pCmpData; /* For compressing each frame */
int encryptionType;
int maxAutoFrameSize;
int debugExtendedHeaderSize; /* Size of extended header */
};
/*
** A structure to store a deserialized zonefile header in.
*/
typedef struct ZonefileHeader ZonefileHeader;
struct ZonefileHeader {
................................................................................
rc = zonefilePrepare(db, &pStmt, &zErr,"SELECT key, value FROM json_each(?)");
if( rc==SQLITE_OK ){
sqlite3_bind_text(pStmt, 1, zJson, -1, SQLITE_STATIC);
}
while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
const char *zKey = (const char*)sqlite3_column_text(pStmt, 0);
int iVal = sqlite3_column_int(pStmt, 1);
if( sqlite3_stricmp("debugExtendedHeaderSize", zKey)==0 ){
if( iVal<0 || iVal>255 ){
zErr = sqlite3_mprintf(
"debugExtendedHeaderSize value out of range: %d", iVal
);
rc = SQLITE_ERROR;
}
p->debugExtendedHeaderSize = iVal;
}else
if( sqlite3_stricmp("maxAutoFrameSize", zKey)==0 ){
p->maxAutoFrameSize = iVal;
}else
if( sqlite3_stricmp("compressionTypeIndexData", zKey)==0 ){
const char *zName = (const char*)sqlite3_column_text(pStmt, 1);
p->pCmpIdx = zonefileCompress(zName);
if( p->pCmpIdx==0 ){
................................................................................
if( zonefileBufferGrow(pCtx, pTo, nReq) ) return SQLITE_ERROR;
rc = pMethod->xCompress(pCmp, &pTo->a[pTo->n], &nReq, pFrom->a, pFrom->n);
pTo->n += nReq;
if( rc!=SQLITE_OK ){
return rc;
}
}
}
return SQLITE_OK;
}
/*
** Append nByte bytes of garbage data to the file opened with pFd. Return
** SQLITE_OK if successful, or SQLITE_ERROR if an error occurs.
**
** Parameter nByte is only ever non-zero when running tests. So it doesn't
** matter if this function is inefficient in those cases.
*/
static int zonefilePad(FILE *pFd, int nByte){
assert( nByte>=0 && nByte<256 );
if( nByte ){
int nRem = nByte;
u8 buf[16] = "0123456789ABCDEF";
while( nRem>0 ){
int n = MIN(nRem, sizeof(buf));
if( zonefileFileWrite(pFd, buf, n) ) return SQLITE_ERROR;
nRem -= n;
}
}
return SQLITE_OK;
}
/*
** Function: zonefile_write(F,T[,J])
*/
................................................................................
/* Create the zonefile header in the in-memory buffer */
memset(aHdr, 0, ZONEFILE_SZ_HEADER);
zonefilePut32(&aHdr[0], ZONEFILE_MAGIC_NUMBER);
aHdr[4] = sWrite.pCmpIdx->eType;
aHdr[5] = sWrite.pCmpData->eType;
iOff = ZONEFILE_SZ_HEADER + sFrameIdx.n + sKeyIdx.n;
zonefilePut32(&aHdr[6], sDict.n ? iOff+sWrite.debugExtendedHeaderSize : 0);
zonefilePut32(&aHdr[10], iOff + sWrite.debugExtendedHeaderSize + sDict.n);
zonefilePut32(&aHdr[14], nFrame);
zonefilePut32(&aHdr[18], nKey);
aHdr[22] = sWrite.encryptionType;
aHdr[23] = 0; /* Encryption key index */
aHdr[24] = 0; /* extended header version */
aHdr[25] = sWrite.debugExtendedHeaderSize;
assert( ZONEFILE_SZ_HEADER>=26 );
rc = zonefileFileWrite(pFd, aHdr, ZONEFILE_SZ_HEADER);
if( rc==SQLITE_OK ) rc = zonefilePad(pFd, sWrite.debugExtendedHeaderSize);
if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sFrameIdx.a, sFrameIdx.n);
if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sKeyIdx.a, sKeyIdx.n);
if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sDict.a, sDict.n);
if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sData.a, sData.n);
if( rc ){
zonefileCtxError(pCtx, "error writing file \"%s\" (fwrite())", zFile);
goto zone_write_out;
................................................................................
rc = zfFindCompress(pHdr->compressionTypeIndexData, &pCmp, pzErr);
if( rc==SQLITE_OK ){
if( pHdr->byteOffsetDictionary ){
nIdx = pHdr->byteOffsetDictionary - ZONEFILE_SZ_HEADER;
}else{
nIdx = pHdr->byteOffsetFrames - ZONEFILE_SZ_HEADER;
}
nIdx -= pHdr->extendedHeaderSize;
aIdx = (u8*)sqlite3_malloc(nIdx);
if( aIdx==0 ){
rc = SQLITE_NOMEM;
}else{
i64 iOff = ZONEFILE_SZ_HEADER + pHdr->extendedHeaderSize;
rc = zonefileFileRead(pFd, aIdx, nIdx, iOff);
}
}
if( rc==SQLITE_OK && pCmp ){
u8 *aUn = 0;
int nUn = 0;
rc = zonefileUncompress(pCmp, 0, aIdx, nIdx, &aUn, &nUn);
................................................................................
u8 *aOff = aSpace;
u8 *aFree = 0;
if( hdr.compressionTypeIndexData ){
int nFree = 0;
rc = zonefileLoadIndex(&hdr, pFd, &aFree, &nFree, &zErr);
if( rc==SQLITE_OK ) aOff = &aFree[4*(iFrame-1)];
}else{
rc = zonefileFileRead(pFd, aOff, 8,
ZONEFILE_SZ_HEADER + hdr.extendedHeaderSize + 4 * (iFrame-1)
);
}
szFrame = zonefileGet32(&aOff[4]);
if( iFrame>0 ){
iOff = zonefileGet32(aOff);
szFrame = szFrame - iOff;
}
sqlite3_free(aFree);
|
Changes to ext/zonefile/zonefile1.test.
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VALUES('compressionTypeIndexData', 'zstd_global_dict')
)
SELECT zonefile_write('test.zonefile', 'bb', json_group_object(n,v)) FROM p;
} {1 {compressor "zstd_global_dict" may not be used to compress the zonefile index}}
}
# puts $COMPRESSION_METHODS
foreach cmp $COMPRESSION_METHODS { foreach cmpidx $COMPRESSION_METHODS {
if {$cmpidx == "zstd_global_dict"} continue
reset_db
load_static_extension db zonefile
set tn "$cmp/$cmpidx"
do_execsql_test 2.$tn.0 {
CREATE TABLE zz(
k INTEGER PRIMARY KEY,
frame INTEGER DEFAULT -1,
idx INTEGER DEFAULT -1,
v BLOB
................................................................................
execsql { INSERT INTO zz(k, v) VALUES($k, randomblob($k)) }
}
execsql { INSERT INTO rt SELECT k, v FROM zz }
execsql {
WITH p(n,v) AS (
VALUES('maxAutoFrameSize', 2000) UNION ALL
VALUES('compressionTypeIndexData', $cmpidx) UNION ALL
VALUES('compressionTypeContent', $cmp)
)
SELECT zonefile_write($zonefile, 'zz', json_group_object(n, v)) FROM p;
INSERT INTO zone_files(filename) VALUES($zonefile);
}
}
do_execsql_test 2.$tn.1 {
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VALUES('compressionTypeIndexData', 'zstd_global_dict')
)
SELECT zonefile_write('test.zonefile', 'bb', json_group_object(n,v)) FROM p;
} {1 {compressor "zstd_global_dict" may not be used to compress the zonefile index}}
}
# puts $COMPRESSION_METHODS
set extra_header 0
foreach cmp $COMPRESSION_METHODS { foreach cmpidx $COMPRESSION_METHODS {
if {$cmpidx == "zstd_global_dict"} continue
reset_db
load_static_extension db zonefile
set tn "$cmp/$cmpidx"
set extra_header [expr {$extra_header ? 0 : 100}]
do_execsql_test 2.$tn.0 {
CREATE TABLE zz(
k INTEGER PRIMARY KEY,
frame INTEGER DEFAULT -1,
idx INTEGER DEFAULT -1,
v BLOB
................................................................................
execsql { INSERT INTO zz(k, v) VALUES($k, randomblob($k)) }
}
execsql { INSERT INTO rt SELECT k, v FROM zz }
execsql {
WITH p(n,v) AS (
VALUES('maxAutoFrameSize', 2000) UNION ALL
VALUES('compressionTypeIndexData', $cmpidx) UNION ALL
VALUES('compressionTypeContent', $cmp) UNION ALL
VALUES('debugExtendedHeaderSize', $extra_header)
)
SELECT zonefile_write($zonefile, 'zz', json_group_object(n, v)) FROM p;
INSERT INTO zone_files(filename) VALUES($zonefile);
}
}
do_execsql_test 2.$tn.1 {
|