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ca1c182567
When loading an encoded payload we will at least do a shallow validation to check that the size that's encoded in the payload matches the size of the allocation. This let's us later use this encoded size to make sure the various offsets inside encoded payload don't reach outside the allocation, if they do, we'll assert/panic, but at least we won't segfault or smear memory. We can also do 'deep' validation which runs on all the records of the encoded payload and validates that they don't contain invalid offsets. This lets us detect corruptions early and reject a RESTORE command rather than accepting it and asserting (crashing) later when accessing that payload via some command. configuration: - adding ACL flag skip-sanitize-payload - adding config sanitize-dump-payload [yes/no/clients] For now, we don't have a good way to ensure MIGRATE in cluster resharding isn't being slowed down by these sanitation, so i'm setting the default value to `no`, but later on it should be set to `clients` by default. changes: - changing rdbReportError not to `exit` in RESTORE command - adding a new stat to be able to later check if cluster MIGRATE isn't being slowed down by sanitation.
64 lines
2.9 KiB
C
64 lines
2.9 KiB
C
/* Listpack -- A lists of strings serialization format
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*
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* This file implements the specification you can find at:
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*
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* https://github.com/antirez/listpack
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*
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* Copyright (c) 2017, Salvatore Sanfilippo <antirez at gmail dot com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __LISTPACK_H
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#define __LISTPACK_H
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#include <stdint.h>
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#define LP_INTBUF_SIZE 21 /* 20 digits of -2^63 + 1 null term = 21. */
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/* lpInsert() where argument possible values: */
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#define LP_BEFORE 0
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#define LP_AFTER 1
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#define LP_REPLACE 2
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unsigned char *lpNew(void);
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void lpFree(unsigned char *lp);
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unsigned char *lpInsert(unsigned char *lp, unsigned char *ele, uint32_t size, unsigned char *p, int where, unsigned char **newp);
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unsigned char *lpAppend(unsigned char *lp, unsigned char *ele, uint32_t size);
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unsigned char *lpDelete(unsigned char *lp, unsigned char *p, unsigned char **newp);
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uint32_t lpLength(unsigned char *lp);
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unsigned char *lpGet(unsigned char *p, int64_t *count, unsigned char *intbuf);
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unsigned char *lpFirst(unsigned char *lp);
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unsigned char *lpLast(unsigned char *lp);
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unsigned char *lpNext(unsigned char *lp, unsigned char *p);
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unsigned char *lpPrev(unsigned char *lp, unsigned char *p);
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uint32_t lpBytes(unsigned char *lp);
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unsigned char *lpSeek(unsigned char *lp, long index);
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int lpValidateIntegrity(unsigned char *lp, size_t size, int deep);
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int lpValidateNext(unsigned char *lp, unsigned char **pp, size_t lpbytes);
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#endif
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