lxc: Mount DMA-BUF Heaps

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

diff --git a/tools/helpers/drivers.py b/tools/helpers/drivers.py
index e5a0335474e3a31c8c3aa45a00cac2d4494b2fe8..3c0ea7a987efdd019655581cc45f8942a34f0e34 100644 (file)
--- a/tools/helpers/drivers.py
+++ b/tools/helpers/drivers.py
@@ -3,6 +3,8 @@
 import logging
 import os
 import glob
 import logging
 import os
 import glob

+import fcntl
+import struct

 import tools.config
 import tools.helpers.run
 
 import tools.config
 import tools.helpers.run
 


@@ -10,19 +12,60 @@ import tools.helpers.run
 BINDER_DRIVERS = [
     "anbox-binder",
     "puddlejumper",
 BINDER_DRIVERS = [
     "anbox-binder",
     "puddlejumper",

+    "bonder",

     "binder"
 ]
 VNDBINDER_DRIVERS = [
     "anbox-vndbinder",
     "vndpuddlejumper",
     "binder"
 ]
 VNDBINDER_DRIVERS = [
     "anbox-vndbinder",
     "vndpuddlejumper",

+    "vndbonder",

     "vndbinder"
 ]
 HWBINDER_DRIVERS = [
     "anbox-hwbinder",
     "hwpuddlejumper",
     "vndbinder"
 ]
 HWBINDER_DRIVERS = [
     "anbox-hwbinder",
     "hwpuddlejumper",

+    "hwbonder",

     "hwbinder"
 ]
 
     "hwbinder"
 ]
 

+
+def isBinderfsLoaded(args):
+    with open("/proc/filesystems", "r") as handle:
+        for line in handle:
+            words = line.split()
+            if len(words) >= 2 and words[1] == "binder":
+                return True
+
+    return False
+
+def allocBinderNodes(args, binder_dev_nodes):
+    NRBITS = 8
+    TYPEBITS = 8
+    SIZEBITS = 14
+    NRSHIFT = 0
+    TYPESHIFT = NRSHIFT + NRBITS
+    SIZESHIFT = TYPESHIFT + TYPEBITS
+    DIRSHIFT = SIZESHIFT + SIZEBITS
+    WRITE = 0x1
+    READ = 0x2
+
+    def IOC(direction, _type, nr, size):
+        return (direction << DIRSHIFT) | (_type << TYPESHIFT) | (nr << NRSHIFT) | (size << SIZESHIFT)
+
+    def IOWR(_type, nr, size):
+        return IOC(READ|WRITE, _type, nr, size)
+
+    BINDER_CTL_ADD = IOWR(98, 1, 264)
+    binderctrlfd = open('/dev/binderfs/binder-control','rb')
+
+    for node in binder_dev_nodes:
+        node_struct = struct.pack(
+            '256sII', bytes(node, 'utf-8'), 0, 0)
+        try:
+            fcntl.ioctl(binderctrlfd.fileno(), BINDER_CTL_ADD, node_struct)
+        except FileExistsError:
+            pass
+

 def probeBinderDriver(args):
     binder_dev_nodes = []
     has_binder = False
 def probeBinderDriver(args):
     binder_dev_nodes = []
     has_binder = False


@@ -45,35 +88,32 @@ def probeBinderDriver(args):
         binder_dev_nodes.append(HWBINDER_DRIVERS[0])
 
     if len(binder_dev_nodes) > 0:
         binder_dev_nodes.append(HWBINDER_DRIVERS[0])
 
     if len(binder_dev_nodes) > 0:

-        devices = ','.join(binder_dev_nodes)
-        command = ["modprobe", "binder_linux", "devices=\"{}\"".format(devices)]
-        output = tools.helpers.run.root(args, command, check=False, output_return=True)
-        if output:
-            logging.error("Failed to load binder driver for devices: {}".format(devices))
-            logging.error(output.strip())
-        else:
+        if not isBinderfsLoaded(args):
+            devices = ','.join(binder_dev_nodes)
+            command = ["modprobe", "binder_linux",
+                       "devices=\"{}\"".format(devices)]
+            output = tools.helpers.run.user(args, command, check=False, output_return=True)
+            if output:
+                logging.error("Failed to load binder driver")
+                logging.error(output.strip())
+
+        if isBinderfsLoaded(args):

             command = ["mkdir", "-p", "/dev/binderfs"]
             command = ["mkdir", "-p", "/dev/binderfs"]

-            tools.helpers.run.root(args, command, check=False)
+            tools.helpers.run.user(args, command, check=False)

             command = ["mount", "-t", "binder", "binder", "/dev/binderfs"]
             command = ["mount", "-t", "binder", "binder", "/dev/binderfs"]

-            tools.helpers.run.root(args, command, check=False)
+            tools.helpers.run.user(args, command, check=False)
+            allocBinderNodes(args, binder_dev_nodes)

             command = ["ln", "-s"]
             command.extend(glob.glob("/dev/binderfs/*"))
             command.append("/dev/")
             command = ["ln", "-s"]
             command.extend(glob.glob("/dev/binderfs/*"))
             command.append("/dev/")

-            tools.helpers.run.root(args, command, check=False)
-
-    for node in binder_dev_nodes:
-        if not os.path.exists("/dev/" + node):
-            return -1
+            tools.helpers.run.user(args, command, check=False)

 
     return 0
 
 def probeAshmemDriver(args):
     if not os.path.exists("/dev/ashmem"):
 
     return 0
 
 def probeAshmemDriver(args):
     if not os.path.exists("/dev/ashmem"):

-        command = ["modprobe", "ashmem_linux"]
-        output = tools.helpers.run.root(args, command, check=False, output_return=True)
-        if output:
-            logging.error("Failed to load ashmem driver")
-            logging.error(output.strip())
+        command = ["modprobe", "-q", "ashmem_linux"]
+        tools.helpers.run.user(args, command, check=False)

 
     if not os.path.exists("/dev/ashmem"):
         return -1
 
     if not os.path.exists("/dev/ashmem"):
         return -1


@@ -133,3 +173,6 @@ def loadBinderNodes(args):
     args.BINDER_DRIVER = cfg["waydroid"]["binder"]
     args.VNDBINDER_DRIVER = cfg["waydroid"]["vndbinder"]
     args.HWBINDER_DRIVER = cfg["waydroid"]["hwbinder"]
     args.BINDER_DRIVER = cfg["waydroid"]["binder"]
     args.VNDBINDER_DRIVER = cfg["waydroid"]["vndbinder"]
     args.HWBINDER_DRIVER = cfg["waydroid"]["hwbinder"]

+    # These might not be in cfg on package upgrade
+    args.BINDER_PROTOCOL = cfg["waydroid"].get("binder_protocol")
+    args.SERVICE_MANAGER_PROTOCOL = cfg["waydroid"].get("service_manager_protocol")