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author | Doug Zongker <dougz@google.com> | 2014-08-22 23:53:43 +0200 |
---|---|---|
committer | Doug Zongker <dougz@google.com> | 2014-08-26 22:54:24 +0200 |
commit | 5f875bf57739bf0b5c2d182173513233bdb71ab8 (patch) | |
tree | 75cccb4197282c24cfd2918040eed55fb70e8759 /updater | |
parent | open misc device in write-only mode (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | updater/Android.mk | 2 | ||||
-rw-r--r-- | updater/install.c | 213 |
2 files changed, 6 insertions, 209 deletions
diff --git a/updater/Android.mk b/updater/Android.mk index b183c9221..a3a900a80 100644 --- a/updater/Android.mk +++ b/updater/Android.mk @@ -36,8 +36,6 @@ 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/install.c b/updater/install.c index cdcdb8fdb..dad0d08c9 100644 --- a/updater/install.c +++ b/updater/install.c @@ -45,7 +45,6 @@ #include "mtdutils/mounts.h" #include "mtdutils/mtdutils.h" #include "updater.h" -#include "syspatch.h" #include "install.h" #ifdef USE_EXT4 @@ -464,68 +463,6 @@ 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)); - map->total_blocks = 0; - - int i; - for (i = 0; i < map->region_count; ++i) { - map->regions[i] = strtoul(p, &p, 0); - map->total_blocks += map->regions[i]; - } - - return map; -} - -static FILE* mapwrite_cmd_pipe; - -static void progress_cb(long done, long total) { - if (total > 0) { - double frac = (double)done / total; - fprintf(mapwrite_cmd_pipe, "set_progress %f\n", frac); - fflush(mapwrite_cmd_pipe); - } -} - - - -bool MapWriter(const unsigned char* data, int dataLen, void* cookie) { - return write_with_map(data, dataLen, (MapState*) cookie, progress_cb) == dataLen; -} - -// package_extract_file(package_path, destination_path, map_path) -// or // package_extract_file(package_path, destination_path) // or // package_extract_file(package_path) @@ -533,33 +470,22 @@ bool MapWriter(const unsigned char* data, int dataLen, void* cookie) { // function (the char* returned is actually a FileContents*). Value* PackageExtractFileFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc < 1 || argc > 3) { - return ErrorAbort(state, "%s() expects 1 or 2 or 3 args, got %d", + if (argc < 1 || argc > 2) { + return ErrorAbort(state, "%s() expects 1 or 2 args, got %d", name, argc); } bool success = false; UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); - mapwrite_cmd_pipe = ui->cmd_pipe; - 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. + if (argc == 2) { + // The two-argument version extracts to a file. ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip; char* zip_path; char* dest_path; - 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; - } + if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL; const ZipEntry* entry = mzFindZipEntry(za, zip_path); if (entry == NULL) { @@ -573,26 +499,12 @@ Value* PackageExtractFileFn(const char* name, State* state, name, dest_path, strerror(errno)); goto done2; } - 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)); - } + 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 @@ -1192,118 +1104,6 @@ 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; - } - - UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); - mapwrite_cmd_pipe = ui->cmd_pipe; - - 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, progress_cb); - - 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) Value* ApplyPatchFn(const char* name, State* state, int argc, Expr* argv[]) { @@ -1738,7 +1538,6 @@ void RegisterInstallFunctions() { RegisterFunction("apply_patch_space", ApplyPatchSpaceFn); RegisterFunction("wipe_block_device", WipeBlockDeviceFn); - RegisterFunction("syspatch", SysPatchFn); RegisterFunction("read_file", ReadFileFn); RegisterFunction("sha1_check", Sha1CheckFn); |