Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 94ef7122 authored by Nikita Ioffe's avatar Nikita Ioffe
Browse files

Treat Microdroid as OS with monolithic sepolicy 

Bug: 285855150
Test: atest MicrodroidTestApp
Change-Id: Idfda3044716a021888017adef801ef67775a3eda
parent 18c53198

init/selinux.cpp

+11 −4
Original line number Diff line number Diff line
@@ -300,6 +300,8 @@ bool GetVendorMappingVersion(std::string* plat_vers) { 
}



constexpr const char plat_policy_cil_file[] = "/system/etc/selinux/plat_sepolicy.cil";

constexpr const char kMicrodroidPrecompiledSepolicy[] =

        "/system/etc/selinux/microdroid_precompiled_sepolicy";



bool IsSplitPolicyDevice() {

    return access(plat_policy_cil_file, R_OK) != -1;
@@ -497,14 +499,19 @@ bool OpenSplitPolicy(PolicyFile* policy_file) { 


bool OpenMonolithicPolicy(PolicyFile* policy_file) {

    static constexpr char kSepolicyFile[] = "/sepolicy";



    LOG(VERBOSE) << "Opening SELinux policy from monolithic file";

    policy_file->fd.reset(open(kSepolicyFile, O_RDONLY | O_CLOEXEC | O_NOFOLLOW));

    // In Microdroid the precompiled sepolicy is located on /system, since there is no vendor code.

    // TODO(b/287206497): refactor once we start conditionally compiling init for Microdroid.

    std::string monolithic_policy_file = access(kMicrodroidPrecompiledSepolicy, R_OK) == 0

                                                 ? kMicrodroidPrecompiledSepolicy

                                                 : kSepolicyFile;



    LOG(INFO) << "Opening SELinux policy from monolithic file " << monolithic_policy_file;

    policy_file->fd.reset(open(monolithic_policy_file.c_str(), O_RDONLY | O_CLOEXEC | O_NOFOLLOW));

    if (policy_file->fd < 0) {

        PLOG(ERROR) << "Failed to open monolithic SELinux policy";

        return false;

    }

    policy_file->path = kSepolicyFile;

    policy_file->path = monolithic_policy_file;

    return true;

}