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authorxunchang <xunchang@google.com>2019-03-18 00:45:12 +0100
committerxunchang <xunchang@google.com>2019-03-19 19:11:58 +0100
commitea2912f187cec8d426cfc2ca715b9a503355fa37 (patch)
tree4298ddcf0b5ce74a15a43699adbcc2d27bfb9084 /fuse_sdcard_provider.cpp
parentMerge "Implement FilePackage class" (diff)
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Diffstat (limited to 'fuse_sdcard_provider.cpp')
-rw-r--r--fuse_sdcard_provider.cpp83
1 files changed, 0 insertions, 83 deletions
diff --git a/fuse_sdcard_provider.cpp b/fuse_sdcard_provider.cpp
deleted file mode 100644
index 46bdf1774..000000000
--- a/fuse_sdcard_provider.cpp
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (C) 2014 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 "fuse_sdcard_provider.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include <functional>
-
-#include <android-base/file.h>
-
-#include "fuse_sideload.h"
-
-struct file_data {
- int fd; // the underlying sdcard file
-
- uint64_t file_size;
- uint32_t block_size;
-};
-
-static int read_block_file(const file_data& fd, uint32_t block, uint8_t* buffer,
- uint32_t fetch_size) {
- off64_t offset = static_cast<off64_t>(block) * fd.block_size;
- if (TEMP_FAILURE_RETRY(lseek64(fd.fd, offset, SEEK_SET)) == -1) {
- fprintf(stderr, "seek on sdcard failed: %s\n", strerror(errno));
- return -EIO;
- }
-
- if (!android::base::ReadFully(fd.fd, buffer, fetch_size)) {
- fprintf(stderr, "read on sdcard failed: %s\n", strerror(errno));
- return -EIO;
- }
-
- return 0;
-}
-
-bool start_sdcard_fuse(const char* path) {
- struct stat sb;
- if (stat(path, &sb) == -1) {
- fprintf(stderr, "failed to stat %s: %s\n", path, strerror(errno));
- return false;
- }
-
- file_data fd;
- fd.fd = open(path, O_RDONLY);
- if (fd.fd == -1) {
- fprintf(stderr, "failed to open %s: %s\n", path, strerror(errno));
- return false;
- }
- fd.file_size = sb.st_size;
- fd.block_size = 65536;
-
- provider_vtab vtab;
- vtab.read_block = std::bind(&read_block_file, fd, std::placeholders::_1, std::placeholders::_2,
- std::placeholders::_3);
- vtab.close = [&fd]() { close(fd.fd); };
-
- // The installation process expects to find the sdcard unmounted. Unmount it with MNT_DETACH so
- // that our open file continues to work but new references see it as unmounted.
- umount2("/sdcard", MNT_DETACH);
-
- return run_fuse_sideload(vtab, fd.file_size, fd.block_size) == 0;
-}