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authorTianjie Xu <xunchang@google.com>2019-06-12 01:09:07 +0200
committerTianjie Xu <xunchang@google.com>2019-06-20 22:53:40 +0200
commitf6158eb918fb86f94e418244a9351379ad568563 (patch)
treebddde0da3fd2d6852f84e61887a69f8297fc1c2b /install
parentMerge "InstallPackage now takes a package as parameter" (diff)
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Diffstat (limited to 'install')
-rw-r--r--install/Android.bp2
-rw-r--r--install/fuse_install.cpp (renamed from install/fuse_sdcard_install.cpp)71
-rw-r--r--install/include/install/fuse_install.h (renamed from install/include/install/fuse_sdcard_install.h)9
3 files changed, 56 insertions, 26 deletions
diff --git a/install/Android.bp b/install/Android.bp
index 4696e501e..89cc3f23e 100644
--- a/install/Android.bp
+++ b/install/Android.bp
@@ -61,7 +61,7 @@ cc_library_static {
srcs: [
"adb_install.cpp",
"asn1_decoder.cpp",
- "fuse_sdcard_install.cpp",
+ "fuse_install.cpp",
"install.cpp",
"package.cpp",
"verifier.cpp",
diff --git a/install/fuse_sdcard_install.cpp b/install/fuse_install.cpp
index 9fdb2f341..ffde4a348 100644
--- a/install/fuse_sdcard_install.cpp
+++ b/install/fuse_install.cpp
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-#include "install/fuse_sdcard_install.h"
+#include "install/fuse_install.h"
#include <dirent.h>
#include <signal.h>
@@ -27,6 +27,7 @@
#include <algorithm>
#include <functional>
#include <memory>
+#include <string>
#include <vector>
#include <android-base/logging.h>
@@ -74,7 +75,8 @@ static std::string BrowseDirectory(const std::string& path, Device* device, Reco
// Skip "." and ".." entries.
if (name == "." || name == "..") continue;
dirs.push_back(name + "/");
- } else if (de->d_type == DT_REG && android::base::EndsWithIgnoreCase(name, ".zip")) {
+ } else if (de->d_type == DT_REG && (android::base::EndsWithIgnoreCase(name, ".zip") ||
+ android::base::EndsWithIgnoreCase(name, ".map"))) {
entries.push_back(name);
}
}
@@ -119,42 +121,37 @@ static std::string BrowseDirectory(const std::string& path, Device* device, Reco
// Unreachable.
}
-static bool StartSdcardFuse(const std::string& path) {
- auto file_data_reader = std::make_unique<FuseFileDataProvider>(path, 65536);
-
- if (!file_data_reader->Valid()) {
+static bool StartInstallPackageFuse(std::string_view path) {
+ if (path.empty()) {
return false;
}
- // 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(std::move(file_data_reader)) == 0;
-}
+ constexpr auto FUSE_BLOCK_SIZE = 65536;
+ bool is_block_map = android::base::ConsumePrefix(&path, "@");
+ auto file_data_reader =
+ is_block_map ? FuseBlockDataProvider::CreateFromBlockMap(std::string(path), FUSE_BLOCK_SIZE)
+ : FuseFileDataProvider::CreateFromFile(std::string(path), FUSE_BLOCK_SIZE);
-InstallResult ApplyFromSdcard(Device* device, RecoveryUI* ui) {
- if (ensure_path_mounted(SDCARD_ROOT) != 0) {
- LOG(ERROR) << "\n-- Couldn't mount " << SDCARD_ROOT << ".\n";
- return INSTALL_ERROR;
+ if (!file_data_reader->Valid()) {
+ return false;
}
- std::string path = BrowseDirectory(SDCARD_ROOT, device, ui);
- if (path.empty()) {
- LOG(ERROR) << "\n-- No package file selected.\n";
- ensure_path_unmounted(SDCARD_ROOT);
- return INSTALL_ERROR;
+ if (android::base::StartsWith(path, SDCARD_ROOT)) {
+ // 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_ROOT, MNT_DETACH);
}
- ui->Print("\n-- Install %s ...\n", path.c_str());
- SetSdcardUpdateBootloaderMessage();
+ return run_fuse_sideload(std::move(file_data_reader)) == 0;
+}
+InstallResult InstallWithFuseFromPath(std::string_view path, RecoveryUI* ui) {
// We used to use fuse in a thread as opposed to a process. Since accessing
// through fuse involves going from kernel to userspace to kernel, it leads
// to deadlock when a page fault occurs. (Bug: 26313124)
pid_t child;
if ((child = fork()) == 0) {
- bool status = StartSdcardFuse(path);
+ bool status = StartInstallPackageFuse(path);
_exit(status ? EXIT_SUCCESS : EXIT_FAILURE);
}
@@ -203,6 +200,32 @@ InstallResult ApplyFromSdcard(Device* device, RecoveryUI* ui) {
LOG(ERROR) << "Error exit from the fuse process: " << WEXITSTATUS(status);
}
+ return result;
+}
+
+InstallResult ApplyFromSdcard(Device* device) {
+ auto ui = device->GetUI();
+ if (ensure_path_mounted(SDCARD_ROOT) != 0) {
+ LOG(ERROR) << "\n-- Couldn't mount " << SDCARD_ROOT << ".\n";
+ return INSTALL_ERROR;
+ }
+
+ std::string path = BrowseDirectory(SDCARD_ROOT, device, ui);
+ if (path.empty()) {
+ LOG(ERROR) << "\n-- No package file selected.\n";
+ ensure_path_unmounted(SDCARD_ROOT);
+ return INSTALL_ERROR;
+ }
+
+ // Hint the install function to read from a block map file.
+ if (android::base::EndsWithIgnoreCase(path, ".map")) {
+ path = "@" + path;
+ }
+
+ ui->Print("\n-- Install %s ...\n", path.c_str());
+ SetSdcardUpdateBootloaderMessage();
+
+ auto result = InstallWithFuseFromPath(path, ui);
ensure_path_unmounted(SDCARD_ROOT);
return result;
}
diff --git a/install/include/install/fuse_sdcard_install.h b/install/include/install/fuse_install.h
index e5bb01f09..63b116aeb 100644
--- a/install/include/install/fuse_sdcard_install.h
+++ b/install/include/install/fuse_install.h
@@ -16,8 +16,15 @@
#pragma once
+#include <string_view>
+
#include "install/install.h"
#include "recovery_ui/device.h"
#include "recovery_ui/ui.h"
-InstallResult ApplyFromSdcard(Device* device, RecoveryUI* ui);
+// Starts FUSE with the package from |path| as the data source. And installs the package from
+// |FUSE_SIDELOAD_HOST_PATHNAME|. The |path| can point to the location of a package zip file or a
+// block map file with the prefix '@'; e.g. /sdcard/package.zip, @/cache/recovery/block.map.
+InstallResult InstallWithFuseFromPath(std::string_view path, RecoveryUI* ui);
+
+InstallResult ApplyFromSdcard(Device* device);