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-rw-r--r--updater/Android.mk4
-rw-r--r--updater/MODULE_LICENSE_GPL0
-rw-r--r--updater/NOTICE339
-rw-r--r--updater/install.c263
-rw-r--r--updater/updater.c18
5 files changed, 589 insertions, 35 deletions
diff --git a/updater/Android.mk b/updater/Android.mk
index 67e98ecd4..99b489029 100644
--- a/updater/Android.mk
+++ b/updater/Android.mk
@@ -20,6 +20,7 @@ LOCAL_SRC_FILES := $(updater_src_files)
ifeq ($(TARGET_USERIMAGES_USE_EXT4), true)
LOCAL_CFLAGS += -DUSE_EXT4
+LOCAL_CFLAGS += -Wno-unused-parameter
LOCAL_C_INCLUDES += system/extras/ext4_utils
LOCAL_STATIC_LIBRARIES += \
libext4_utils_static \
@@ -30,11 +31,12 @@ endif
LOCAL_STATIC_LIBRARIES += $(TARGET_RECOVERY_UPDATER_LIBS) $(TARGET_RECOVERY_UPDATER_EXTRA_LIBS)
LOCAL_STATIC_LIBRARIES += libapplypatch libedify libmtdutils libminzip libz
LOCAL_STATIC_LIBRARIES += libmincrypt libbz
-LOCAL_STATIC_LIBRARIES += libminelf
LOCAL_STATIC_LIBRARIES += libcutils liblog libstdc++ libc
LOCAL_STATIC_LIBRARIES += libselinux
LOCAL_C_INCLUDES += $(LOCAL_PATH)/..
+LOCAL_STATIC_LIBRARIES += libsyspatch libxz libxdelta3
+
# Each library in TARGET_RECOVERY_UPDATER_LIBS should have a function
# named "Register_<libname>()". Here we emit a little C function that
# gets #included by updater.c. It calls all those registration
diff --git a/updater/MODULE_LICENSE_GPL b/updater/MODULE_LICENSE_GPL
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/updater/MODULE_LICENSE_GPL
diff --git a/updater/NOTICE b/updater/NOTICE
new file mode 100644
index 000000000..e77696ae8
--- /dev/null
+++ b/updater/NOTICE
@@ -0,0 +1,339 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 675 Mass Ave, Cambridge, MA 02139, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
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+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
+ cost of physically performing source distribution, a complete
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+ distributed under the terms of Sections 1 and 2 above on a medium
+ customarily used for software interchange; or,
+
+ c) Accompany it with the information you received as to the offer
+ to distribute corresponding source code. (This alternative is
+ allowed only for noncommercial distribution and only if you
+ received the program in object code or executable form with such
+ an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
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+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
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+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) 19yy <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) 19yy name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/updater/install.c b/updater/install.c
index 872cbf857..8defc7720 100644
--- a/updater/install.c
+++ b/updater/install.c
@@ -45,11 +45,27 @@
#include "mtdutils/mounts.h"
#include "mtdutils/mtdutils.h"
#include "updater.h"
+#include "syspatch.h"
+#include "install.h"
#ifdef USE_EXT4
#include "make_ext4fs.h"
+#include "wipe.h"
#endif
+// Take a sha-1 digest and return it as a newly-allocated hex string.
+static char* PrintSha1(const uint8_t* digest) {
+ char* buffer = malloc(SHA_DIGEST_SIZE*2 + 1);
+ int i;
+ const char* alphabet = "0123456789abcdef";
+ for (i = 0; i < SHA_DIGEST_SIZE; ++i) {
+ buffer[i*2] = alphabet[(digest[i] >> 4) & 0xf];
+ buffer[i*2+1] = alphabet[digest[i] & 0xf];
+ }
+ buffer[i*2] = '\0';
+ return buffer;
+}
+
// mount(fs_type, partition_type, location, mount_point)
//
// fs_type="yaffs2" partition_type="MTD" location=partition
@@ -414,6 +430,54 @@ Value* PackageExtractDirFn(const char* name, State* state,
}
+DontCareMap* ReadDontCareMapFromZip(ZipArchive* za, const char* path) {
+ const char* name = "ReadDontCareMapFromZip";
+
+ const ZipEntry* entry = mzFindZipEntry(za, path);
+ if (entry == NULL) {
+ printf("%s: no %s in package\n", name, path);
+ return NULL;
+ }
+
+ size_t map_size = mzGetZipEntryUncompLen(entry);
+ char* map_data = malloc(map_size);
+ if (map_data == NULL) {
+ printf("%s: failed to allocate %zu bytes for %s\n",
+ name, map_size, path);
+ return NULL;
+ }
+
+ if (!mzExtractZipEntryToBuffer(za, entry, (unsigned char*) map_data)) {
+ printf("%s: failed to read %s\n", name, path);
+ return NULL;
+ }
+
+ char* p = map_data;
+ DontCareMap* map = (DontCareMap*) malloc(sizeof(DontCareMap));
+
+ map->block_size = strtoul(p, &p, 0);
+ if (map->block_size != 4096) {
+ printf("%s: unexpected block size %zu\n", name, map->block_size);
+ return NULL;
+ }
+
+ map->region_count = strtoul(p, &p, 0);
+ map->regions = (int*) malloc(map->region_count * sizeof(int));
+
+ int i;
+ for (i = 0; i < map->region_count; ++i) {
+ map->regions[i] = strtoul(p, &p, 0);
+ }
+
+ return map;
+}
+
+bool MapWriter(const unsigned char* data, int dataLen, void* cookie) {
+ return write_with_map(data, dataLen, (MapState*) cookie) == dataLen;
+}
+
+// package_extract_file(package_path, destination_path, map_path)
+// or
// package_extract_file(package_path, destination_path)
// or
// package_extract_file(package_path)
@@ -421,19 +485,30 @@ Value* PackageExtractDirFn(const char* name, State* state,
// function (the char* returned is actually a FileContents*).
Value* PackageExtractFileFn(const char* name, State* state,
int argc, Expr* argv[]) {
- if (argc != 1 && argc != 2) {
- return ErrorAbort(state, "%s() expects 1 or 2 args, got %d",
+ if (argc < 1 || argc > 3) {
+ return ErrorAbort(state, "%s() expects 1 or 2 or 3 args, got %d",
name, argc);
}
bool success = false;
- if (argc == 2) {
- // The two-argument version extracts to a file.
+ if (argc >= 2) {
+ // The two-argument version extracts to a file; the three-arg
+ // version extracts to a file, skipping over regions in a
+ // don't care map.
+
+ ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
char* zip_path;
char* dest_path;
- if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
+ char* map_path = NULL;
+ DontCareMap* map = NULL;
+ if (argc == 2) {
+ if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
+ } else {
+ if (ReadArgs(state, argv, 3, &zip_path, &dest_path, &map_path) < 0) return NULL;
+ map = ReadDontCareMapFromZip(za, map_path);
+ if (map == NULL) goto done2;
+ }
- ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
const ZipEntry* entry = mzFindZipEntry(za, zip_path);
if (entry == NULL) {
printf("%s: no %s in package\n", name, zip_path);
@@ -446,12 +521,26 @@ Value* PackageExtractFileFn(const char* name, State* state,
name, dest_path, strerror(errno));
goto done2;
}
- success = mzExtractZipEntryToFile(za, entry, fileno(f));
+ if (map) {
+ MapState state;
+ state.map = map;
+ state.cr = 0;
+ state.so_far = 0;
+ state.f = f;
+ success = mzProcessZipEntryContents(za, entry, MapWriter, &state);
+ } else {
+ success = mzExtractZipEntryToFile(za, entry, fileno(f));
+ }
fclose(f);
done2:
free(zip_path);
free(dest_path);
+ free(map_path);
+ if (map) {
+ free(map->regions);
+ free(map);
+ }
return StringValue(strdup(success ? "t" : ""));
} else {
// The one-argument version returns the contents of the file
@@ -838,8 +927,8 @@ Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
// file_getprop(file, key)
//
// interprets 'file' as a getprop-style file (key=value pairs, one
-// per line, # comment lines and blank lines okay), and returns the value
-// for 'key' (or "" if it isn't defined).
+// per line. # comment lines,blank lines, lines without '=' ignored),
+// and returns the value for 'key' (or "" if it isn't defined).
Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
char* result = NULL;
char* buffer = NULL;
@@ -897,9 +986,7 @@ Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
char* equal = strchr(line, '=');
if (equal == NULL) {
- ErrorAbort(state, "%s: malformed line \"%s\": %s not a prop file?",
- name, line, filename);
- goto done;
+ continue;
}
// trim whitespace between key and '='
@@ -1053,8 +1140,117 @@ Value* ApplyPatchSpaceFn(const char* name, State* state,
return StringValue(strdup(CacheSizeCheck(bytes) ? "" : "t"));
}
+bool CheckMappedFileSha1(FILE* f, DontCareMap* map, uint8_t* intended_digest) {
+ MapState state;
+
+ state.f = f;
+ state.so_far = 0;
+ state.cr = 0;
+ state.map = map;
+
+ SHA_CTX ctx;
+ SHA_init(&ctx);
+
+ unsigned char buffer[32173];
+ size_t bytes_read;
+
+ while ((bytes_read = read_with_map(buffer, sizeof(buffer), &state)) > 0) {
+ SHA_update(&ctx, buffer, bytes_read);
+ }
+ const uint8_t* digest = SHA_final(&ctx);
+
+ return memcmp(digest, intended_digest, SHA_DIGEST_SIZE) == 0;
+}
+
+
+// syspatch(file, tgt_mapfile, tgt_sha1, init_mapfile, init_sha1, patch)
+
+Value* SysPatchFn(const char* name, State* state, int argc, Expr* argv[]) {
+ if (argc != 6) {
+ return ErrorAbort(state, "%s(): expected 6 args, got %d", name, argc);
+ }
+
+ char* filename;
+ char* target_mapfilename;
+ char* target_sha1;
+ char* init_mapfilename;
+ char* init_sha1;
+ char* patch_filename;
+ uint8_t target_digest[SHA_DIGEST_SIZE];
+ uint8_t init_digest[SHA_DIGEST_SIZE];
+
+ if (ReadArgs(state, argv, 6, &filename,
+ &target_mapfilename, &target_sha1,
+ &init_mapfilename, &init_sha1, &patch_filename) < 0) {
+ return NULL;
+ }
+
+ if (ParseSha1(target_sha1, target_digest) != 0) {
+ printf("%s(): failed to parse '%s' as target SHA-1", name, target_sha1);
+ memset(target_digest, 0, SHA_DIGEST_SIZE);
+ }
+ if (ParseSha1(init_sha1, init_digest) != 0) {
+ printf("%s(): failed to parse '%s' as init SHA-1", name, init_sha1);
+ memset(init_digest, 0, SHA_DIGEST_SIZE);
+ }
+
+ ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
+ FILE* src = fopen(filename, "r");
+
+ DontCareMap* init_map = ReadDontCareMapFromZip(za, init_mapfilename);
+ if (init_map == NULL) return ErrorAbort(state, "%s(): failed to read init map\n", name);
+ DontCareMap* target_map = ReadDontCareMapFromZip(za, target_mapfilename);
+ if (target_map == NULL) return ErrorAbort(state, "%s(): failed to read target map\n", name);
+
+ if (CheckMappedFileSha1(src, init_map, init_digest)) {
+ // If the partition contents match the init_digest, then we need to apply the patch.
+
+ rewind(src);
+
+ const ZipEntry* entry = mzFindZipEntry(za, patch_filename);
+ if (entry == NULL) {
+ return ErrorAbort(state, "%s(): no %s in package\n", name, patch_filename);
+ }
+
+ unsigned char* patch_data;
+ size_t patch_len;
+ if (!mzGetStoredEntry(za, entry, &patch_data, &patch_len)) {
+ return ErrorAbort(state, "%s(): failed to get %s entry\n", name, patch_filename);
+ }
+
+ FILE* tgt = fopen(filename, "r+");
+
+ int ret = syspatch(src, init_map, patch_data, patch_len, tgt, target_map);
+
+ fclose(src);
+ fclose(tgt);
+
+ if (ret != 0) {
+ return ErrorAbort(state, "%s(): patching failed\n", name);
+ }
+ } else {
+ rewind(src);
+ if (CheckMappedFileSha1(src, target_map, target_digest)) {
+ // If the partition contents match the target already, we
+ // don't need to do anything.
+ printf("%s: output is already target\n", name);
+ } else {
+ return ErrorAbort(state, "%s(): %s in unknown state\n", name, filename);
+ }
+ }
+
+ done:
+ free(target_sha1);
+ free(target_mapfilename);
+ free(init_sha1);
+ free(init_mapfilename);
+ free(patch_filename);
+ return StringValue(filename);
+
+}
+
+// apply_patch(file, size, init_sha1, tgt_sha1, patch)
-// apply_patch(srcfile, tgtfile, tgtsha1, tgtsize, sha1_1, patch_1, ...)
Value* ApplyPatchFn(const char* name, State* state, int argc, Expr* argv[]) {
if (argc < 6 || (argc % 2) == 1) {
return ErrorAbort(state, "%s(): expected at least 6 args and an "
@@ -1239,19 +1435,6 @@ Value* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) {
return StringValue(strdup(buffer));
}
-// Take a sha-1 digest and return it as a newly-allocated hex string.
-static char* PrintSha1(uint8_t* digest) {
- char* buffer = malloc(SHA_DIGEST_SIZE*2 + 1);
- int i;
- const char* alphabet = "0123456789abcdef";
- for (i = 0; i < SHA_DIGEST_SIZE; ++i) {
- buffer[i*2] = alphabet[(digest[i] >> 4) & 0xf];
- buffer[i*2+1] = alphabet[digest[i] & 0xf];
- }
- buffer[i*2] = '\0';
- return buffer;
-}
-
// sha1_check(data)
// to return the sha1 of the data (given in the format returned by
// read_file).
@@ -1322,7 +1505,7 @@ Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) {
v->type = VAL_BLOB;
FileContents fc;
- if (LoadFileContents(filename, &fc, RETOUCH_DONT_MASK) != 0) {
+ if (LoadFileContents(filename, &fc) != 0) {
free(filename);
v->size = -1;
v->data = NULL;
@@ -1419,7 +1602,7 @@ Value* SetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
// Return the value most recently saved with SetStageFn. The argument
// is the block device for the misc partition.
Value* GetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 2) {
+ if (argc != 1) {
return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
}
@@ -1436,6 +1619,27 @@ Value* GetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
return StringValue(strdup(buffer));
}
+Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) {
+ if (argc != 2) {
+ return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
+ }
+
+ char* filename;
+ char* len_str;
+ if (ReadArgs(state, argv, 2, &filename, &len_str) < 0) return NULL;
+
+ size_t len = strtoull(len_str, NULL, 0);
+ int fd = open(filename, O_WRONLY, 0644);
+ int success = wipe_block_device(fd, len);
+
+ free(filename);
+ free(len_str);
+
+ close(fd);
+
+ return StringValue(strdup(success ? "t" : ""));
+}
+
void RegisterInstallFunctions() {
RegisterFunction("mount", MountFn);
RegisterFunction("is_mounted", IsMountedFn);
@@ -1469,6 +1673,9 @@ void RegisterInstallFunctions() {
RegisterFunction("apply_patch_check", ApplyPatchCheckFn);
RegisterFunction("apply_patch_space", ApplyPatchSpaceFn);
+ RegisterFunction("wipe_block_device", WipeBlockDeviceFn);
+ RegisterFunction("syspatch", SysPatchFn);
+
RegisterFunction("read_file", ReadFileFn);
RegisterFunction("sha1_check", Sha1CheckFn);
RegisterFunction("rename", RenameFn);
diff --git a/updater/updater.c b/updater/updater.c
index c7009feac..b7af3e500 100644
--- a/updater/updater.c
+++ b/updater/updater.c
@@ -22,6 +22,7 @@
#include "updater.h"
#include "install.h"
#include "minzip/Zip.h"
+#include "minzip/SysUtil.h"
// Generated by the makefile, this function defines the
// RegisterDeviceExtensions() function, which calls all the
@@ -65,19 +66,24 @@ int main(int argc, char** argv) {
// Extract the script from the package.
- char* package_data = argv[3];
+ const char* package_filename = argv[3];
+ MemMapping map;
+ if (sysMapFile(package_filename, &map) != 0) {
+ printf("failed to map package %s\n", argv[3]);
+ return 3;
+ }
ZipArchive za;
int err;
- err = mzOpenZipArchive(package_data, &za);
+ err = mzOpenZipArchive(map.addr, map.length, &za);
if (err != 0) {
printf("failed to open package %s: %s\n",
- package_data, strerror(err));
+ argv[3], strerror(err));
return 3;
}
const ZipEntry* script_entry = mzFindZipEntry(&za, SCRIPT_NAME);
if (script_entry == NULL) {
- printf("failed to find %s in %s\n", SCRIPT_NAME, package_data);
+ printf("failed to find %s in %s\n", SCRIPT_NAME, package_filename);
return 4;
}
@@ -99,8 +105,7 @@ int main(int argc, char** argv) {
Expr* root;
int error_count = 0;
- yy_scan_string(script);
- int error = yyparse(&root, &error_count);
+ int error = parse_string(script, &root, &error_count);
if (error != 0 || error_count > 0) {
printf("%d parse errors\n", error_count);
return 6;
@@ -152,6 +157,7 @@ int main(int argc, char** argv) {
if (updater_info.package_zip) {
mzCloseZipArchive(updater_info.package_zip);
}
+ sysReleaseMap(&map);
free(script);
return 0;