Use apexd to set up chroot apex dir
Directly including elements of apexd into the otapreopt_chroot binary
has caused issues when apexd and installd fall out of sync. To avoid
this happening in the future move all apex setup into the apexd
binary and invoke it.
Bug: 181182967
Test: Manual OTA of blueline
Change-Id: I70ecff434e01e543045800ff9f8ff6b567530c33
diff --git a/cmds/installd/otapreopt_chroot.cpp b/cmds/installd/otapreopt_chroot.cpp
index 379cf92..c04b558 100644
--- a/cmds/installd/otapreopt_chroot.cpp
+++ b/cmds/installd/otapreopt_chroot.cpp
@@ -20,6 +20,7 @@
#include <sys/stat.h>
#include <sys/wait.h>
+#include <array>
#include <fstream>
#include <sstream>
@@ -31,10 +32,6 @@
#include <libdm/dm.h>
#include <selinux/android.h>
-#include <apex_file_repository.h>
-#include <apex_constants.h>
-#include <apexd.h>
-
#include "installd_constants.h"
#include "otapreopt_utils.h"
@@ -64,47 +61,14 @@
}
}
-static std::vector<apex::ApexFile> ActivateApexPackages() {
- // The logic here is (partially) copied and adapted from
- // system/apex/apexd/apexd.cpp.
- //
- // Only scan the APEX directory under /system, /system_ext and /vendor (within the chroot dir).
- std::vector<std::string> apex_dirs{apex::kApexPackageSystemDir, apex::kApexPackageSystemExtDir,
- apex::kApexPackageVendorDir};
- // Initialize ApexFileRepository used internally in ScanPackagesDirAndActivate.
- // This is a quick fix to fix apex activation in otapreopt_chroot.
- apex::ApexFileRepository::GetInstance().AddPreInstalledApex(apex_dirs);
- for (const auto& dir : apex_dirs) {
- // Cast call to void to suppress warn_unused_result.
- static_cast<void>(apex::ScanPackagesDirAndActivate(dir.c_str()));
- }
- return apex::GetActivePackages();
-}
+static void ActivateApexPackages() {
+ std::vector<std::string> apexd_cmd{"/system/bin/apexd", "--otachroot-bootstrap"};
+ std::string apexd_error_msg;
-static void CreateApexInfoList(const std::vector<apex::ApexFile>& apex_files) {
- // Setup the apex-info-list.xml file
- const std::string apex_info_file = std::string(apex::kApexRoot) + "/" + apex::kApexInfoList;
- std::fstream xml(apex_info_file.c_str(), std::ios::out | std::ios::trunc);
- if (!xml.is_open()) {
- PLOG(ERROR) << "Failed to open " << apex_info_file;
- exit(216);
- }
-
- // we do not care about inactive apexs
- std::vector<apex::ApexFile> inactive;
- apex::CollectApexInfoList(xml, apex_files, inactive);
- xml.flush();
- xml.close();
-}
-
-static void DeactivateApexPackages(const std::vector<apex::ApexFile>& active_packages) {
- for (const apex::ApexFile& apex_file : active_packages) {
- const std::string& package_path = apex_file.GetPath();
- base::Result<void> status = apex::DeactivatePackage(package_path);
- if (!status.ok()) {
- LOG(ERROR) << "Failed to deactivate " << package_path << ": "
- << status.error();
- }
+ bool exec_result = Exec(apexd_cmd, &apexd_error_msg);
+ if (!exec_result) {
+ PLOG(ERROR) << "Running otapreopt failed: " << apexd_error_msg;
+ exit(220);
}
}
@@ -269,8 +233,7 @@
// Try to mount APEX packages in "/apex" in the chroot dir. We need at least
// the ART APEX, as it is required by otapreopt to run dex2oat.
- std::vector<apex::ApexFile> active_packages = ActivateApexPackages();
- CreateApexInfoList(active_packages);
+ ActivateApexPackages();
// Check that an ART APEX has been activated; clean up and exit
// early otherwise.
@@ -278,16 +241,27 @@
"com.android.art",
"com.android.runtime",
};
- for (std::string_view apex : kRequiredApexs) {
- if (std::none_of(active_packages.begin(), active_packages.end(),
- [&](const apex::ApexFile& package) {
- return package.GetManifest().name() == apex;
- })) {
- LOG(FATAL_WITHOUT_ABORT) << "No activated " << apex << " APEX package.";
- DeactivateApexPackages(active_packages);
- exit(217);
+ std::array<bool, arraysize(kRequiredApexs)> found_apexs{ false, false };
+ DIR* apex_dir = opendir("/apex");
+ if (apex_dir == nullptr) {
+ PLOG(ERROR) << "unable to open /apex";
+ exit(220);
+ }
+ for (dirent* entry = readdir(apex_dir); entry != nullptr; entry = readdir(apex_dir)) {
+ for (int i = 0; i < found_apexs.size(); i++) {
+ if (kRequiredApexs[i] == std::string_view(entry->d_name)) {
+ found_apexs[i] = true;
+ break;
+ }
}
}
+ closedir(apex_dir);
+ auto it = std::find(found_apexs.cbegin(), found_apexs.cend(), false);
+ if (it != found_apexs.cend()) {
+ LOG(ERROR) << "No activated " << kRequiredApexs[std::distance(found_apexs.cbegin(), it)]
+ << " package!";
+ exit(221);
+ }
// Setup /linkerconfig. Doing it after the chroot means it doesn't need its own category
if (selinux_android_restorecon("/linkerconfig", 0) < 0) {
@@ -323,9 +297,6 @@
LOG(ERROR) << "Running otapreopt failed: " << error_msg;
}
- // Tear down the work down by the apexd logic. (i.e. deactivate packages).
- DeactivateApexPackages(active_packages);
-
if (!exec_result) {
exit(213);
}