62d43bf7cb
Currently we're using file-specific tags which makes it hard for people looking at logcat to infer it's actually from credstore and it also complicates filtering. Just use "credstore" everywhere. Also change logging level from ERROR to INFO in the message "Registered binder service" which is logged on startup. Bug: None Test: Compiles + manual inspection via logcat Test: atest android.security.identity.cts (on goldfish) Change-Id: I336d1a4e4e10b87fd3f08a5046cf5e13f09c9cb6
131 lines
3.7 KiB
C++
131 lines
3.7 KiB
C++
/*
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* Copyright (c) 2019, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "credstore"
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#include <fcntl.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <android-base/logging.h>
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#include <android-base/stringprintf.h>
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#include <android/security/identity/ICredentialStore.h>
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#include "Util.h"
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namespace android {
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namespace security {
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namespace identity {
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using ::android::base::StringPrintf;
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Status halStatusToError(const Status& halStatus, int credStoreError) {
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string message = StringPrintf(
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"HAL failed with exception code %d (%s), service-specific error code %d, message '%s'",
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halStatus.exceptionCode(), Status::exceptionToString(halStatus.exceptionCode()).c_str(),
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halStatus.serviceSpecificErrorCode(), halStatus.exceptionMessage().c_str());
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return Status::fromServiceSpecificError(credStoreError, message.c_str());
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}
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Status halStatusToGenericError(const Status& halStatus) {
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return halStatusToError(halStatus, ICredentialStore::ERROR_GENERIC);
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}
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optional<vector<uint8_t>> fileGetContents(const string& path) {
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int fd = open(path.c_str(), O_RDONLY);
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if (fd == -1) {
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PLOG(ERROR) << "Error opening " << path;
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return {};
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}
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struct stat statbuf;
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if (fstat(fd, &statbuf) != 0) {
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PLOG(ERROR) << "Error statting " << path;
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close(fd);
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return {};
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}
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vector<uint8_t> data;
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data.resize(statbuf.st_size);
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uint8_t* p = data.data();
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size_t remaining = data.size();
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while (remaining > 0) {
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ssize_t numRead = TEMP_FAILURE_RETRY(read(fd, p, remaining));
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if (numRead <= 0) {
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PLOG(ERROR) << "Failed reading from '" << path << "'";
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close(fd);
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return {};
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}
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p += numRead;
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remaining -= numRead;
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}
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close(fd);
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return data;
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}
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bool fileSetContents(const string& path, const vector<uint8_t>& data) {
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char tempName[4096];
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int fd;
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string tempNameStr = path + ".XXXXXX";
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if (tempNameStr.size() >= sizeof tempName - 1) {
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LOG(ERROR) << "Path name too long";
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return false;
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}
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strncpy(tempName, tempNameStr.c_str(), sizeof tempName);
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fd = mkstemp(tempName);
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if (fd == -1) {
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PLOG(ERROR) << "Error creating temp file for '" << path << "'";
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return false;
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}
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const uint8_t* p = data.data();
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size_t remaining = data.size();
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while (remaining > 0) {
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ssize_t numWritten = TEMP_FAILURE_RETRY(write(fd, p, remaining));
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if (numWritten <= 0) {
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PLOG(ERROR) << "Failed writing into temp file for '" << path << "'";
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close(fd);
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return false;
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}
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p += numWritten;
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remaining -= numWritten;
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}
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if (TEMP_FAILURE_RETRY(fsync(fd))) {
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PLOG(ERROR) << "Failed fsyncing temp file for '" << path << "'";
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close(fd);
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return false;
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}
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close(fd);
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if (rename(tempName, path.c_str()) != 0) {
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PLOG(ERROR) << "Error renaming temp file for '" << path << "'";
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close(fd);
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return false;
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}
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return true;
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}
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} // namespace identity
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} // namespace security
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} // namespace android
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