From c24a8e688a6312764254beac2b2520bb0c5e998d Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 3 Mar 2009 19:28:42 -0800 Subject: auto import from //depot/cupcake/@135843 --- install.c | 186 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 186 insertions(+) create mode 100644 install.c (limited to 'install.c') diff --git a/install.c b/install.c new file mode 100644 index 000000000..069112080 --- /dev/null +++ b/install.c @@ -0,0 +1,186 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include +#include + +#include "amend/amend.h" +#include "common.h" +#include "install.h" +#include "mincrypt/rsa.h" +#include "minui/minui.h" +#include "minzip/SysUtil.h" +#include "minzip/Zip.h" +#include "mtdutils/mounts.h" +#include "mtdutils/mtdutils.h" +#include "roots.h" +#include "verifier.h" + +/* List of public keys */ +static const RSAPublicKey keys[] = { +#include "keys.inc" +}; + +#define ASSUMED_UPDATE_SCRIPT_NAME "META-INF/com/google/android/update-script" + +static const ZipEntry * +find_update_script(ZipArchive *zip) +{ +//TODO: Get the location of this script from the MANIFEST.MF file + return mzFindZipEntry(zip, ASSUMED_UPDATE_SCRIPT_NAME); +} + +static int read_data(ZipArchive *zip, const ZipEntry *entry, + char** ppData, int* pLength) { + int len = (int)mzGetZipEntryUncompLen(entry); + if (len <= 0) { + LOGE("Bad data length %d\n", len); + return -1; + } + char *data = malloc(len + 1); + if (data == NULL) { + LOGE("Can't allocate %d bytes for data\n", len + 1); + return -2; + } + bool ok = mzReadZipEntry(zip, entry, data, len); + if (!ok) { + LOGE("Error while reading data\n"); + free(data); + return -3; + } + data[len] = '\0'; // not necessary, but just to be safe + *ppData = data; + if (pLength) { + *pLength = len; + } + return 0; +} + +static int +handle_update_script(ZipArchive *zip, const ZipEntry *update_script_entry) +{ + /* Read the entire script into a buffer. + */ + int script_len; + char* script_data; + if (read_data(zip, update_script_entry, &script_data, &script_len) < 0) { + LOGE("Can't read update script\n"); + return INSTALL_ERROR; + } + + /* Parse the script. Note that the script and parse tree are never freed. + */ + const AmCommandList *commands = parseAmendScript(script_data, script_len); + if (commands == NULL) { + LOGE("Syntax error in update script\n"); + return INSTALL_ERROR; + } else { + UnterminatedString name = mzGetZipEntryFileName(update_script_entry); + LOGI("Parsed %.*s\n", name.len, name.str); + } + + /* Execute the script. + */ + int ret = execCommandList((ExecContext *)1, commands); + if (ret != 0) { + int num = ret; + char *line, *next = script_data; + while (next != NULL && ret-- > 0) { + line = next; + next = memchr(line, '\n', script_data + script_len - line); + if (next != NULL) *next++ = '\0'; + } + LOGE("Failure at line %d:\n%s\n", num, next ? line : "(not found)"); + return INSTALL_ERROR; + } + + ui_print("Installation complete.\n"); + return INSTALL_SUCCESS; +} + +static int +handle_update_package(const char *path, ZipArchive *zip) +{ + // Give verification half the progress bar... + ui_print("Verifying update package...\n"); + ui_show_progress( + VERIFICATION_PROGRESS_FRACTION, + VERIFICATION_PROGRESS_TIME); + + if (!verify_jar_signature(zip, keys, sizeof(keys) / sizeof(keys[0]))) { + LOGE("Verification failed\n"); + return INSTALL_CORRUPT; + } + + // Update should take the rest of the progress bar. + ui_print("Installing update...\n"); + + const ZipEntry *script_entry; + script_entry = find_update_script(zip); + if (script_entry == NULL) { + LOGE("Can't find update script\n"); + return INSTALL_CORRUPT; + } + + if (register_package_root(zip, path) < 0) { + LOGE("Can't register package root\n"); + return INSTALL_ERROR; + } + + int ret = handle_update_script(zip, script_entry); + register_package_root(NULL, NULL); // Unregister package root + return ret; +} + +int +install_package(const char *root_path) +{ + ui_set_background(BACKGROUND_ICON_INSTALLING); + ui_print("Finding update package...\n"); + ui_show_indeterminate_progress(); + LOGI("Update location: %s\n", root_path); + + if (ensure_root_path_mounted(root_path) != 0) { + LOGE("Can't mount %s\n", root_path); + return INSTALL_CORRUPT; + } + + char path[PATH_MAX] = ""; + if (translate_root_path(root_path, path, sizeof(path)) == NULL) { + LOGE("Bad path %s\n", root_path); + return INSTALL_CORRUPT; + } + + ui_print("Opening update package...\n"); + LOGI("Update file path: %s\n", path); + + /* Try to open the package. + */ + ZipArchive zip; + int err = mzOpenZipArchive(path, &zip); + if (err != 0) { + LOGE("Can't open %s\n(%s)\n", path, err != -1 ? strerror(err) : "bad"); + return INSTALL_CORRUPT; + } + + /* Verify and install the contents of the package. + */ + int status = handle_update_package(path, &zip); + mzCloseZipArchive(&zip); + return status; +} -- cgit v1.2.3