99916f0496
Changes minzip and recovery's file signature verification to work on memory regions, rather than files. For packages which are regular files, install.cpp now mmap()s them into memory and then passes the mapped memory to the verifier and to the minzip library. Support for files which are raw block maps (which will be used when we have packages written to encrypted data partitions) is present but largely untested so far. Bug: 12188746 Change-Id: I12cc3e809834745a489dd9d4ceb558cbccdc3f71
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
/*
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* Copyright 2006 The Android Open Source Project
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*
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* System utilities.
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*/
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#ifndef _MINZIP_SYSUTIL
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#define _MINZIP_SYSUTIL
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#include <stdio.h>
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct MappedRange {
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void* addr;
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size_t length;
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} MappedRange;
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/*
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* Use this to keep track of mapped segments.
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*/
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typedef struct MemMapping {
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unsigned char* addr; /* start of data */
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size_t length; /* length of data */
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int range_count;
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MappedRange* ranges;
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} MemMapping;
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/*
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* Map a file into a private, read-only memory segment. If 'fn'
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* begins with an '@' character, it is a map of blocks to be mapped,
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* otherwise it is treated as an ordinary file.
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*
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* On success, "pMap" is filled in, and zero is returned.
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*/
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int sysMapFile(const char* fn, MemMapping* pMap);
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/*
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* Release the pages associated with a shared memory segment.
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*
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* This does not free "pMap"; it just releases the memory.
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*/
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void sysReleaseMap(MemMapping* pMap);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_MINZIP_SYSUTIL*/
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