app_manager: Allow install/remove/list while frozen

[waydroid.git] / tools / helpers / lxc.py

diff --git a/tools/helpers/lxc.py b/tools/helpers/lxc.py
index d77493600b06409142e3ef052f70e6c652a4ad5e..cac4bb5dbc6551147275c9f13582029b51517fa7 100644 (file)
--- a/tools/helpers/lxc.py
+++ b/tools/helpers/lxc.py
@@ -91,6 +91,8 @@ def generate_nodes_lxc_config(args):
 
     # Recursive mount /run to provide necessary host sockets
     make_entry("/run", options="rbind,create=dir 0 0")
+    # And /dev/shm
+    make_entry("/dev/shm", options="rbind,create=dir,optional 0 0")
 
     # Necessary sw_sync node for HWC
     make_entry("/dev/sw_sync")
@@ -127,6 +129,19 @@ def generate_nodes_lxc_config(args):
 
     return nodes
 
+LXC_APPARMOR_PROFILE = "lxc-waydroid"
+def get_apparmor_status(args):
+    enabled = False
+    if shutil.which("aa-enabled"):
+        enabled = (tools.helpers.run.user(args, ["aa-enabled", "--quiet"], check=False) == 0)
+    if not enabled and shutil.which("systemctl"):
+        enabled = (tools.helpers.run.user(args, ["systemctl", "is-active", "-q", "apparmor"], check=False) == 0)
+    try:
+        with open("/sys/kernel/security/apparmor/profiles", "r") as f:
+            enabled &= (LXC_APPARMOR_PROFILE in f.read())
+    except:
+        enabled = False
+    return enabled
 
 def set_lxc_config(args):
     lxc_path = tools.config.defaults["lxc"] + "/waydroid"
@@ -135,15 +150,13 @@ def set_lxc_config(args):
         raise OSError("LXC is not installed")
     config_paths = tools.config.tools_src + "/data/configs/config_"
     seccomp_profile = tools.config.tools_src + "/data/configs/waydroid.seccomp"
-    apparmor_profiles = [tools.config.tools_src + "/data/configs/" + "lxc-waydroid",tools.config.tools_src + "/data/configs/" + "android_app",tools.config.tools_src + "/data/configs/" + "adbd"]
-    apparmor_profile_dir = "/etc/apparmor.d/"
 
     config_snippets = [ config_paths + "base" ]
-    # lxc v1 is a bit special because some options got renamed later
-    if lxc_ver == 1:
+    # lxc v1 and v2 are bit special because some options got renamed later
+    if lxc_ver <= 2:
         config_snippets.append(config_paths + "1")
     else:
-        for ver in range(2, 5):
+        for ver in range(3, 5):
             snippet = config_paths + str(ver)
             if lxc_ver >= ver and os.path.exists(snippet):
                 config_snippets.append(snippet)
@@ -156,22 +169,9 @@ def set_lxc_config(args):
     tools.helpers.run.user(args, command)
     command = ["cp", "-fpr", seccomp_profile, lxc_path + "/waydroid.seccomp"]
     tools.helpers.run.user(args, command)
-
-    try:
-        command = ["cp", "-i", apparmor_profiles[0], apparmor_profile_dir + "lxc/lxc-waydroid"]
-        tools.helpers.run.user(args, command)
-        command = ["apparmor_parser", "-r", apparmor_profile_dir + "lxc/lxc-waydroid"]
+    if get_apparmor_status(args):
+        command = ["sed", "-i", "-E", "/lxc.aa_profile|lxc.apparmor.profile/ s/unconfined/{}/g".format(LXC_APPARMOR_PROFILE), lxc_path + "/config"]
         tools.helpers.run.user(args, command)
-        command = ["cp", "-i", apparmor_profiles[1], apparmor_profile_dir + "android_app"]
-        tools.helpers.run.user(args, command)
-        command = ["apparmor_parser", "-r", apparmor_profile_dir + "android_app"]
-        tools.helpers.run.user(args, command)
-        command = ["cp", "-i", apparmor_profiles[2], apparmor_profile_dir + "adbd"]
-        tools.helpers.run.user(args, command)
-        command = ["apparmor_parser", "-r", apparmor_profile_dir + "adbd"]
-        tools.helpers.run.user(args, command)
-    except:
-        logging.warning("An error has occurred while installing AppArmor profiles. If profiles are not installed, or AppArmor is disabled or not supported on your system, then the container will run without AppArmor protection.")
 
     nodes = generate_nodes_lxc_config(args)
     config_nodes_tmp_path = args.work + "/config_nodes"
@@ -367,21 +367,31 @@ def unfreeze(args):
     tools.helpers.run.user(args, command)
 
 def shell(args):
-    if status(args) != "RUNNING":
-        logging.error("WayDroid container is {}".format(status(args)))
+    state = status(args)
+    if state == "FROZEN":
+        unfreeze(args)
+    elif state != "RUNNING":
+        logging.error("WayDroid container is {}".format(state))
         return
     command = ["lxc-attach", "-P", tools.config.defaults["lxc"],
                "-n", "waydroid", "--"]
     if args.COMMAND:
-        command.append(args.COMMAND)
+        command.extend(args.COMMAND)
     else:
         command.append("/system/bin/sh")
     subprocess.run(command, env={"PATH": os.environ['PATH'] + ":/system/bin:/vendor/bin"})
+    if state == "FROZEN":
+        freeze(args)
 
 def logcat(args):
-    if status(args) != "RUNNING":
-        logging.error("WayDroid container is {}".format(status(args)))
+    state = status(args)
+    if state == "FROZEN":
+        unfreeze(args)
+    elif state != "RUNNING":
+        logging.error("WayDroid container is {}".format(state))
         return
     command = ["lxc-attach", "-P", tools.config.defaults["lxc"],
                "-n", "waydroid", "--", "/system/bin/logcat"]
     subprocess.run(command)
+    if state == "FROZEN":
+        freeze(args)