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Commit 548eb76c authored by Tao Bao's avatar Tao Bao
Browse files

Support SELinux context label when mounting 

If there is a SELinux context label in the recovery.fstab, we should
honor that when mounting the partition.

Bug: 19764039
Change-Id: I4df71a092b418cd340a18b2e3b0936de33d8e3f5
parent 942a42e3

tools/releasetools/common.py

+12 −2
Original line number Diff line number Diff line
@@ -202,12 +202,13 @@ def LoadDictionaryFromLines(lines): 


def LoadRecoveryFSTab(read_helper, fstab_version):

  class Partition(object):

    def __init__(self, mount_point, fs_type, device, length, device2):

    def __init__(self, mount_point, fs_type, device, length, device2, context):

      self.mount_point = mount_point

      self.fs_type = fs_type

      self.device = device

      self.length = length

      self.device2 = device2

      self.context = context



  try:

    data = read_helper("RECOVERY/RAMDISK/etc/recovery.fstab")
@@ -256,6 +257,7 @@ def LoadRecoveryFSTab(read_helper, fstab_version): 
      line = line.strip()

      if not line or line.startswith("#"):

        continue

      # <src> <mnt_point> <type> <mnt_flags and options> <fs_mgr_flags>

      pieces = line.split()

      if len(pieces) != 5:

        raise ValueError("malformed recovery.fstab line: \"%s\"" % (line,))
@@ -275,9 +277,17 @@ def LoadRecoveryFSTab(read_helper, fstab_version): 
          # Ignore all unknown options in the unified fstab

          continue



      mount_flags = pieces[3]

      # Honor the SELinux context if present.

      context = None

      for i in mount_flags.split(","):

        if i.startswith("context="):

          context = i



      mount_point = pieces[1]

      d[mount_point] = Partition(mount_point=mount_point, fs_type=pieces[2],

                                 device=pieces[0], length=length, device2=None)

                                 device=pieces[0], length=length,

                                 device2=None, context=context)



  else:

    raise ValueError("Unknown fstab_version: \"%d\"" % (fstab_version,))

tools/releasetools/edify_generator.py

+4 −1
Original line number Diff line number Diff line
@@ -177,9 +177,12 @@ class EdifyGenerator(object): 
          if "=" in option:

            key, value = option.split("=", 1)

            mount_dict[key] = value

      mount_flags = mount_dict.get(p.fs_type, "")

      if p.context is not None:

        mount_flags = p.context + ("," + mount_flags if mount_flags else "")

      self.script.append('mount("%s", "%s", "%s", "%s", "%s");' % (

          p.fs_type, common.PARTITION_TYPES[p.fs_type], p.device,

          p.mount_point, mount_dict.get(p.fs_type, "")))

          p.mount_point, mount_flags))

      self.mounts.add(p.mount_point)



  def UnpackPackageDir(self, src, dst):