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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.
55 lines
2.7 KiB
C
55 lines
2.7 KiB
C
/* String -> String Map data structure optimized for size.
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*
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* See zipmap.c for more info.
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*
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* --------------------------------------------------------------------------
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*
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* Copyright (c) 2009-2010, 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 _ZIPMAP_H
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#define _ZIPMAP_H
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unsigned char *zipmapNew(void);
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unsigned char *zipmapSet(unsigned char *zm, unsigned char *key, unsigned int klen, unsigned char *val, unsigned int vlen, int *update);
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unsigned char *zipmapDel(unsigned char *zm, unsigned char *key, unsigned int klen, int *deleted);
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unsigned char *zipmapRewind(unsigned char *zm);
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unsigned char *zipmapNext(unsigned char *zm, unsigned char **key, unsigned int *klen, unsigned char **value, unsigned int *vlen);
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int zipmapGet(unsigned char *zm, unsigned char *key, unsigned int klen, unsigned char **value, unsigned int *vlen);
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int zipmapExists(unsigned char *zm, unsigned char *key, unsigned int klen);
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unsigned int zipmapLen(unsigned char *zm);
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size_t zipmapBlobLen(unsigned char *zm);
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void zipmapRepr(unsigned char *p);
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int zipmapValidateIntegrity(unsigned char *zm, size_t size, int deep);
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#ifdef REDIS_TEST
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int zipmapTest(int argc, char *argv[]);
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#endif
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#endif
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