tequilaOS/platform_system_vold
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Create DE_n and CE_n APEX data directories.

Browse source 
This creates an apexdata directory under /data/misc_de/<user> and
/data/misc_ce/<user>, and also creates a directory under that for
every APEX that is installed.

See go/apex-data-directories.

APEXes are discovered by scanning the /apex directory. It may be better
to delegate this process to a library, but it is proposed to defer that
change to a future CL.

Bug: 141148175
Test: Built and flashed, checked directories were created.
Change-Id: I95a060b4f42241c91da25a779e61a8f85ca1914c
This commit is contained in:
Oli Lan 2019-11-19 18:09:34 +00:00
parent 6e3441a8ea
commit 94457217cb
1 changed files with 29 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
vold_prepare_subdirs.cpp
View file

@ -120,6 +120,31 @@ static bool rmrf_contents(const std::string& path) {
}
}
static bool prepare_apex_subdirs(struct selabel_handle* sehandle, const std::string& path) {
if (!prepare_dir(sehandle, 0700, 0, 0, path + "/apexdata")) return false;
auto dirp = std::unique_ptr<DIR, int (*)(DIR*)>(opendir("/apex"), closedir);
if (!dirp) {
PLOG(ERROR) << "Unable to open apex directory";
return false;
}
struct dirent* entry;
while ((entry = readdir(dirp.get())) != nullptr) {
if (entry->d_type != DT_DIR) continue;
const char* name = entry->d_name;
// skip any starting with "."
if (name[0] == '.') continue;
if (strchr(name, '@') != NULL) continue;
if (!prepare_dir(sehandle, 0700, AID_SYSTEM, AID_SYSTEM, path + "/apexdata/" + name)) {
return false;
}
}
return true;
}
static bool prepare_subdirs(const std::string& volume_uuid, int user_id, int flags) {
struct selabel_handle* sehandle = selinux_android_file_context_handle();
@ -129,6 +154,8 @@ static bool prepare_subdirs(const std::string& volume_uuid, int user_id, int fla
if (!prepare_dir(sehandle, 0700, 0, 0, misc_de_path + "/vold")) return false;
if (!prepare_dir(sehandle, 0700, 0, 0, misc_de_path + "/storaged")) return false;
if (!prepare_dir(sehandle, 0700, 0, 0, misc_de_path + "/rollback")) return false;
// TODO: Return false if this returns false once sure this should succeed.
prepare_apex_subdirs(sehandle, misc_de_path);
auto vendor_de_path = android::vold::BuildDataVendorDePath(user_id);
if (!prepare_dir(sehandle, 0700, AID_SYSTEM, AID_SYSTEM, vendor_de_path + "/fpdata")) {
@ -144,6 +171,8 @@ static bool prepare_subdirs(const std::string& volume_uuid, int user_id, int fla
if (!prepare_dir(sehandle, 0700, 0, 0, misc_ce_path + "/vold")) return false;
if (!prepare_dir(sehandle, 0700, 0, 0, misc_ce_path + "/storaged")) return false;
if (!prepare_dir(sehandle, 0700, 0, 0, misc_ce_path + "/rollback")) return false;
// TODO: Return false if this returns false once sure this should succeed.
prepare_apex_subdirs(sehandle, misc_ce_path);
auto system_ce_path = android::vold::BuildDataSystemCePath(user_id);
if (!prepare_dir(sehandle, 0700, AID_SYSTEM, AID_SYSTEM, system_ce_path + "/backup")) {