Beispiel #1
0
static jint
com_android_internal_content_NativeLibraryHelper_hasRenderscriptBitcode(JNIEnv *env, jclass clazz,
        jlong apkHandle) {
    ZipFileRO* zipFile = reinterpret_cast<ZipFileRO*>(apkHandle);
    void* cookie = NULL;
    if (!zipFile->startIteration(&cookie)) {
        return APK_SCAN_ERROR;
    }

    char fileName[PATH_MAX];
    ZipEntryRO next = NULL;
    while ((next = zipFile->nextEntry(cookie)) != NULL) {
        if (zipFile->getEntryFileName(next, fileName, sizeof(fileName))) {
            continue;
        }

        const size_t fileNameLen = strlen(fileName);
        const char* lastSlash = strrchr(fileName, '/');
        const char* baseName = (lastSlash == NULL) ? fileName : fileName + 1;
        if (!strncmp(fileName + fileNameLen - RS_BITCODE_SUFFIX_LEN, RS_BITCODE_SUFFIX,
                     RS_BITCODE_SUFFIX_LEN) && isFilenameSafe(baseName)) {
            zipFile->endIteration(cookie);
            return BITCODE_PRESENT;
        }
    }

    zipFile->endIteration(cookie);
    return NO_BITCODE_PRESENT;
}
static install_status_t
iterateOverNativeFiles(JNIEnv *env, jstring javaFilePath, jstring javaCpuAbi, jstring javaCpuAbi2,
        iterFunc callFunc, void* callArg) {
    ScopedUtfChars filePath(env, javaFilePath);
    ScopedUtfChars cpuAbi(env, javaCpuAbi);
    ScopedUtfChars cpuAbi2(env, javaCpuAbi2);

    ZipFileRO zipFile;

    if (zipFile.open(filePath.c_str()) != NO_ERROR) {
        LOGI("Couldn't open APK %s\n", filePath.c_str());
        return INSTALL_FAILED_INVALID_APK;
    }

    const int N = zipFile.getNumEntries();

    char fileName[PATH_MAX];
    bool hasPrimaryAbi = false;

    for (int i = 0; i < N; i++) {
        const ZipEntryRO entry = zipFile.findEntryByIndex(i);
        if (entry == NULL) {
            continue;
        }

        // Make sure this entry has a filename.
        if (zipFile.getEntryFileName(entry, fileName, sizeof(fileName))) {
            continue;
        }

        // Make sure we're in the lib directory of the ZIP.
        if (strncmp(fileName, APK_LIB, APK_LIB_LEN)) {
            continue;
        }

        // Make sure the filename is at least to the minimum library name size.
        const size_t fileNameLen = strlen(fileName);
        static const size_t minLength = APK_LIB_LEN + 2 + LIB_PREFIX_LEN + 1 + LIB_SUFFIX_LEN;
        if (fileNameLen < minLength) {
            continue;
        }

        const char* lastSlash = strrchr(fileName, '/');
        LOG_ASSERT(lastSlash != NULL, "last slash was null somehow for %s\n", fileName);

        // Check to make sure the CPU ABI of this file is one we support.
        const char* cpuAbiOffset = fileName + APK_LIB_LEN;
        const size_t cpuAbiRegionSize = lastSlash - cpuAbiOffset;

        LOGV("Comparing ABIs %s and %s versus %s\n", cpuAbi.c_str(), cpuAbi2.c_str(), cpuAbiOffset);
        if (cpuAbi.size() == cpuAbiRegionSize
                && *(cpuAbiOffset + cpuAbi.size()) == '/'
                && !strncmp(cpuAbiOffset, cpuAbi.c_str(), cpuAbiRegionSize)) {
            LOGV("Using primary ABI %s\n", cpuAbi.c_str());
            hasPrimaryAbi = true;
        } else if (cpuAbi2.size() == cpuAbiRegionSize
                && *(cpuAbiOffset + cpuAbi2.size()) == '/'
                && !strncmp(cpuAbiOffset, cpuAbi2.c_str(), cpuAbiRegionSize)) {

            /*
             * If this library matches both the primary and secondary ABIs,
             * only use the primary ABI.
             */
            if (hasPrimaryAbi) {
                LOGV("Already saw primary ABI, skipping secondary ABI %s\n", cpuAbi2.c_str());
                continue;
            } else {
                LOGV("Using secondary ABI %s\n", cpuAbi2.c_str());
            }
        } else {
            LOGV("abi didn't match anything: %s (end at %zd)\n", cpuAbiOffset, cpuAbiRegionSize);
            continue;
        }

        // If this is a .so file, check to see if we need to copy it.
        if ((!strncmp(fileName + fileNameLen - LIB_SUFFIX_LEN, LIB_SUFFIX, LIB_SUFFIX_LEN)
                    && !strncmp(lastSlash, LIB_PREFIX, LIB_PREFIX_LEN)
                    && isFilenameSafe(lastSlash + 1))
                || !strncmp(lastSlash + 1, GDBSERVER, GDBSERVER_LEN)) {

            install_status_t ret = callFunc(env, callArg, &zipFile, entry, lastSlash + 1);

            if (ret != INSTALL_SUCCEEDED) {
                LOGV("Failure for entry %s", lastSlash + 1);
                return ret;
            }
        }
    }

    return INSTALL_SUCCEEDED;
}