do verification and extraction on memory, not files

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

1 files changed, 6 insertions, 6 deletions

diff --git a/minzip/Zip.h b/minzip/Zip.h
index c942828..05a2e60 100644
--- a/minzip/Zip.h
+++ b/minzip/Zip.h
@@ -46,11 +46,11 @@ typedef struct ZipEntry {
  * One Zip archive.  Treat as opaque.
  */
 typedef struct ZipArchive {
-    int         fd;
-    unsigned int numEntries;
-    ZipEntry*   pEntries;
-    HashTable*  pHash;          // maps file name to ZipEntry
-    MemMapping  map;
+    unsigned int   numEntries;
+    ZipEntry*      pEntries;
+    HashTable*     pHash;          // maps file name to ZipEntry
+    unsigned char* addr;
+    size_t         length;
 } ZipArchive;
 
 /*
@@ -68,7 +68,7 @@ typedef struct {
  * On success, returns 0 and populates "pArchive".  Returns nonzero errno
  * value on failure.
  */
-int mzOpenZipArchive(const char* fileName, ZipArchive* pArchive);
+int mzOpenZipArchive(unsigned char* addr, size_t length, ZipArchive* pArchive);
 
 /*
  * Close archive, releasing resources associated with it.