1 files changed, 496 insertions, 0 deletions

diff --git a/scripts/lib/wic/kickstart/custom_commands/partition.py b/scripts/lib/wic/kickstart/custom_commands/partition.py
new file mode 100644
index 0000000000..24f523ae41
--- /dev/null
+++ b/scripts/lib/wic/kickstart/custom_commands/partition.py
@@ -0,0 +1,496 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (c) 2013, Intel Corporation.
+# All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# DESCRIPTION
+# This module provides the OpenEmbedded partition object definitions.
+#
+# AUTHORS
+# Tom Zanussi <tom.zanussi (at] linux.intel.com>
+#
+
+import shutil
+import os
+import tempfile
+
+from pykickstart.commands.partition import *
+from wic.utils.oe.misc import *
+from wic.kickstart.custom_commands import *
+from wic.plugin import pluginmgr
+
+partition_methods = {
+    "do_stage_partition":None,
+    "do_prepare_partition":None,
+    "do_configure_partition":None,
+}
+
+class Wic_PartData(Mic_PartData):
+    removedKeywords = Mic_PartData.removedKeywords
+    removedAttrs = Mic_PartData.removedAttrs
+
+    def __init__(self, *args, **kwargs):
+        Mic_PartData.__init__(self, *args, **kwargs)
+        self.deleteRemovedAttrs()
+        self.source = kwargs.get("source", None)
+        self.rootfs = kwargs.get("rootfs-dir", None)
+        self.source_file = ""
+        self.size = 0
+
+    def _getArgsAsStr(self):
+        retval = Mic_PartData._getArgsAsStr(self)
+
+        if self.source:
+            retval += " --source=%s" % self.source
+            if self.rootfs:
+                retval += " --rootfs-dir=%s" % self.rootfs
+
+        return retval
+
+    def get_rootfs(self):
+        """
+        Acessor for rootfs dir
+        """
+        return self.rootfs
+
+    def set_rootfs(self, rootfs):
+        """
+        Acessor for actual rootfs dir, which must be set by source
+        plugins.
+        """
+        self.rootfs = rootfs
+
+    def get_size(self):
+        """
+        Accessor for partition size, 0 or --size before set_size().
+        """
+        return self.size
+
+    def set_size(self, size):
+        """
+        Accessor for actual partition size, which must be set by source
+        plugins.
+        """
+        self.size = size
+
+    def set_source_file(self, source_file):
+        """
+        Accessor for source_file, the location of the generated partition
+        image, which must be set by source plugins.
+        """
+        self.source_file = source_file
+
+    def get_extra_block_count(self, current_blocks):
+        """
+        The --size param is reflected in self.size (in MB), and we already
+        have current_blocks (1k) blocks, calculate and return the
+        number of (1k) blocks we need to add to get to --size, 0 if
+        we're already there or beyond.
+        """
+        msger.debug("Requested partition size for %s: %d" % \
+                    (self.mountpoint, self.size))
+
+        if not self.size:
+            return 0
+
+        requested_blocks = self.size * 1024
+
+        msger.debug("Requested blocks %d, current_blocks %d" % \
+                    (requested_blocks, current_blocks))
+
+        if requested_blocks > current_blocks:
+            return requested_blocks - current_blocks
+        else:
+            return 0
+
+    def prepare(self, cr, cr_workdir, oe_builddir, rootfs_dir, bootimg_dir,
+                kernel_dir, native_sysroot):
+        """
+        Prepare content for individual partitions, depending on
+        partition command parameters.
+        """
+        if not self.source:
+            if not self.size:
+                msger.error("The %s partition has a size of zero.  Please specify a non-zero --size for that partition." % self.mountpoint)
+            if self.fstype and self.fstype == "swap":
+                self.prepare_swap_partition(cr_workdir, oe_builddir,
+                                            native_sysroot)
+            elif self.fstype:
+                self.prepare_empty_partition(cr_workdir, oe_builddir,
+                                             native_sysroot)
+            return
+
+        plugins = pluginmgr.get_source_plugins()
+
+        if self.source not in plugins:
+            msger.error("The '%s' --source specified for %s doesn't exist.\n\tSee 'wic list source-plugins' for a list of available --sources.\n\tSee 'wic help source-plugins' for details on adding a new source plugin." % (self.source, self.mountpoint))
+
+        self._source_methods = pluginmgr.get_source_plugin_methods(self.source, partition_methods)
+        self._source_methods["do_configure_partition"](self, cr, cr_workdir,
+                                                       oe_builddir,
+                                                       bootimg_dir,
+                                                       kernel_dir,
+                                                       native_sysroot)
+        self._source_methods["do_stage_partition"](self, cr, cr_workdir,
+                                                   oe_builddir,
+                                                   bootimg_dir, kernel_dir,
+                                                   native_sysroot)
+        self._source_methods["do_prepare_partition"](self, cr, cr_workdir,
+                                                     oe_builddir,
+                                                     bootimg_dir, kernel_dir, rootfs_dir,
+                                                     native_sysroot)
+
+    def prepare_rootfs_from_fs_image(self, cr_workdir, oe_builddir,
+                                     rootfs_dir):
+        """
+        Handle an already-created partition e.g. xxx.ext3
+        """
+        rootfs = oe_builddir
+        du_cmd = "du -Lbms %s" % rootfs
+        out = exec_cmd(du_cmd)
+        rootfs_size = out.split()[0]
+
+        self.size = rootfs_size
+        self.source_file = rootfs
+
+    def prepare_rootfs(self, cr_workdir, oe_builddir, rootfs_dir,
+                       native_sysroot):
+        """
+        Prepare content for a rootfs partition i.e. create a partition
+        and fill it from a /rootfs dir.
+
+        Currently handles ext2/3/4 and btrfs.
+        """
+        pseudo = "export PSEUDO_PREFIX=%s/usr;" % native_sysroot
+        pseudo += "export PSEUDO_LOCALSTATEDIR=%s/../pseudo;" % rootfs_dir
+        pseudo += "export PSEUDO_PASSWD=%s;" % rootfs_dir
+        pseudo += "export PSEUDO_NOSYMLINKEXP=1;"
+        pseudo += "%s/usr/bin/pseudo " % native_sysroot
+
+        if self.fstype.startswith("ext"):
+            return self.prepare_rootfs_ext(cr_workdir, oe_builddir,
+                                           rootfs_dir, native_sysroot,
+                                           pseudo)
+        elif self.fstype.startswith("btrfs"):
+            return self.prepare_rootfs_btrfs(cr_workdir, oe_builddir,
+                                             rootfs_dir, native_sysroot,
+                                             pseudo)
+
+        elif self.fstype.startswith("vfat"):
+            return self.prepare_rootfs_vfat(cr_workdir, oe_builddir,
+                                            rootfs_dir, native_sysroot,
+                                            pseudo)
+        elif self.fstype.startswith("squashfs"):
+            return self.prepare_rootfs_squashfs(cr_workdir, oe_builddir,
+                                                rootfs_dir, native_sysroot,
+                                                pseudo)
+
+    def prepare_rootfs_ext(self, cr_workdir, oe_builddir, rootfs_dir,
+                           native_sysroot, pseudo):
+        """
+        Prepare content for an ext2/3/4 rootfs partition.
+        """
+
+        image_rootfs = rootfs_dir
+        rootfs = "%s/rootfs_%s.%s" % (cr_workdir, self.label ,self.fstype)
+
+        du_cmd = "du -ks %s" % image_rootfs
+        out = exec_cmd(du_cmd)
+        actual_rootfs_size = int(out.split()[0])
+
+        extra_blocks = self.get_extra_block_count(actual_rootfs_size)
+
+        if extra_blocks < IMAGE_EXTRA_SPACE:
+            extra_blocks = IMAGE_EXTRA_SPACE
+
+        rootfs_size = actual_rootfs_size + extra_blocks
+
+        msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
+                    (extra_blocks, self.mountpoint, rootfs_size))
+
+        dd_cmd = "dd if=/dev/zero of=%s bs=1024 seek=%d count=0 bs=1k" % \
+            (rootfs, rootfs_size)
+        exec_cmd(dd_cmd)
+
+        extra_imagecmd = "-i 8192"
+
+        mkfs_cmd = "mkfs.%s -F %s %s -d %s" % \
+            (self.fstype, extra_imagecmd, rootfs, image_rootfs)
+        exec_native_cmd(pseudo + mkfs_cmd, native_sysroot)
+
+
+        # get the rootfs size in the right units for kickstart (Mb)
+        du_cmd = "du -Lbms %s" % rootfs
+        out = exec_cmd(du_cmd)
+        rootfs_size = out.split()[0]
+
+        self.size = rootfs_size
+        self.source_file = rootfs
+
+        return 0
+
+    def prepare_rootfs_btrfs(self, cr_workdir, oe_builddir, rootfs_dir,
+                             native_sysroot, pseudo):
+        """
+        Prepare content for a btrfs rootfs partition.
+
+        Currently handles ext2/3/4 and btrfs.
+        """
+        image_rootfs = rootfs_dir
+        rootfs = "%s/rootfs_%s.%s" % (cr_workdir, self.label, self.fstype)
+
+        du_cmd = "du -ks %s" % image_rootfs
+        out = exec_cmd(du_cmd)
+        actual_rootfs_size = int(out.split()[0])
+
+        extra_blocks = self.get_extra_block_count(actual_rootfs_size)
+
+        if extra_blocks < IMAGE_EXTRA_SPACE:
+            extra_blocks = IMAGE_EXTRA_SPACE
+
+        rootfs_size = actual_rootfs_size + extra_blocks
+
+        msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
+                    (extra_blocks, self.mountpoint, rootfs_size))
+
+        dd_cmd = "dd if=/dev/zero of=%s bs=1024 seek=%d count=0 bs=1k" % \
+            (rootfs, rootfs_size)
+        exec_cmd(dd_cmd)
+
+        mkfs_cmd = "mkfs.%s -b %d -r %s %s" % \
+            (self.fstype, rootfs_size * 1024, image_rootfs, rootfs)
+        exec_native_cmd(pseudo + mkfs_cmd, native_sysroot)
+
+        # get the rootfs size in the right units for kickstart (Mb)
+        du_cmd = "du -Lbms %s" % rootfs
+        out = exec_cmd(du_cmd)
+        rootfs_size = out.split()[0]
+
+        self.size = rootfs_size
+        self.source_file = rootfs
+
+    def prepare_rootfs_vfat(self, cr_workdir, oe_builddir, rootfs_dir,
+                            native_sysroot, pseudo):
+        """
+        Prepare content for a vfat rootfs partition.
+        """
+        image_rootfs = rootfs_dir
+        rootfs = "%s/rootfs_%s.%s" % (cr_workdir, self.label, self.fstype)
+
+        du_cmd = "du -bks %s" % image_rootfs
+        out = exec_cmd(du_cmd)
+        blocks = int(out.split()[0])
+
+        extra_blocks = self.get_extra_block_count(blocks)
+
+        if extra_blocks < BOOTDD_EXTRA_SPACE:
+            extra_blocks = BOOTDD_EXTRA_SPACE
+
+        blocks += extra_blocks
+
+        msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
+                    (extra_blocks, self.mountpoint, blocks))
+
+        # Ensure total sectors is an integral number of sectors per
+        # track or mcopy will complain. Sectors are 512 bytes, and we
+        # generate images with 32 sectors per track. This calculation is
+        # done in blocks, thus the mod by 16 instead of 32.
+        blocks += (16 - (blocks % 16))
+
+        dosfs_cmd = "mkdosfs -n boot -S 512 -C %s %d" % (rootfs, blocks)
+        exec_native_cmd(dosfs_cmd, native_sysroot)
+
+        mcopy_cmd = "mcopy -i %s -s %s/* ::/" % (rootfs, image_rootfs)
+        rc, out = exec_native_cmd(mcopy_cmd, native_sysroot)
+        if rc:
+            msger.error("ERROR: mcopy returned '%s' instead of 0 (which you probably don't want to ignore, use --debug for details)" % rc)
+
+        chmod_cmd = "chmod 644 %s" % rootfs
+        exec_cmd(chmod_cmd)
+
+        # get the rootfs size in the right units for kickstart (Mb)
+        du_cmd = "du -Lbms %s" % rootfs
+        out = exec_cmd(du_cmd)
+        rootfs_size = out.split()[0]
+
+        self.set_size(rootfs_size)
+        self.set_source_file(rootfs)
+
+    def prepare_rootfs_squashfs(self, cr_workdir, oe_builddir, rootfs_dir,
+                                native_sysroot, pseudo):
+        """
+        Prepare content for a squashfs rootfs partition.
+        """
+        image_rootfs = rootfs_dir
+        rootfs = "%s/rootfs_%s.%s" % (cr_workdir, self.label ,self.fstype)
+
+        squashfs_cmd = "mksquashfs %s %s -noappend" % \
+                       (image_rootfs, rootfs)
+        exec_native_cmd(pseudo + squashfs_cmd, native_sysroot)
+
+        # get the rootfs size in the right units for kickstart (Mb)
+        du_cmd = "du -Lbms %s" % rootfs
+        out = exec_cmd(du_cmd)
+        rootfs_size = out.split()[0]
+
+        self.size = rootfs_size
+        self.source_file = rootfs
+
+        return 0
+
+    def prepare_empty_partition(self, cr_workdir, oe_builddir, native_sysroot):
+        """
+        Prepare an empty partition.
+        """
+        if self.fstype.startswith("ext"):
+            return self.prepare_empty_partition_ext(cr_workdir, oe_builddir,
+                                                    native_sysroot)
+        elif self.fstype.startswith("btrfs"):
+            return self.prepare_empty_partition_btrfs(cr_workdir, oe_builddir,
+                                                      native_sysroot)
+        elif self.fstype.startswith("vfat"):
+            return self.prepare_empty_partition_vfat(cr_workdir, oe_builddir,
+                                                     native_sysroot)
+        elif self.fstype.startswith("squashfs"):
+            return self.prepare_empty_partition_squashfs(cr_workdir, oe_builddir,
+                                                         native_sysroot)
+
+    def prepare_empty_partition_ext(self, cr_workdir, oe_builddir,
+                                    native_sysroot):
+        """
+        Prepare an empty ext2/3/4 partition.
+        """
+        fs = "%s/fs.%s" % (cr_workdir, self.fstype)
+
+        dd_cmd = "dd if=/dev/zero of=%s bs=1M seek=%d count=0" % \
+            (fs, self.size)
+        exec_cmd(dd_cmd)
+
+        extra_imagecmd = "-i 8192"
+
+        mkfs_cmd = "mkfs.%s -F %s %s" % (self.fstype, extra_imagecmd, fs)
+        exec_native_cmd(mkfs_cmd, native_sysroot)
+
+        self.source_file = fs
+
+        return 0
+
+    def prepare_empty_partition_btrfs(self, cr_workdir, oe_builddir,
+                                      native_sysroot):
+        """
+        Prepare an empty btrfs partition.
+        """
+        fs = "%s/fs.%s" % (cr_workdir, self.fstype)
+
+        dd_cmd = "dd if=/dev/zero of=%s bs=1M seek=%d count=0" % \
+            (fs, self.size)
+        exec_cmd(dd_cmd)
+
+        mkfs_cmd = "mkfs.%s -b %d %s" % (self.fstype, self.size * 1024, rootfs)
+        exec_native_cmd(mkfs_cmd, native_sysroot)
+
+        mkfs_cmd = "mkfs.%s -F %s %s" % (self.fstype, extra_imagecmd, fs)
+        exec_native_cmd(mkfs_cmd, native_sysroot)
+
+        self.source_file = fs
+
+        return 0
+
+    def prepare_empty_partition_vfat(self, cr_workdir, oe_builddir,
+                                     native_sysroot):
+        """
+        Prepare an empty vfat partition.
+        """
+        fs = "%s/fs.%s" % (cr_workdir, self.fstype)
+
+        blocks = self.size * 1024
+
+        dosfs_cmd = "mkdosfs -n boot -S 512 -C %s %d" % (fs, blocks)
+        exec_native_cmd(dosfs_cmd, native_sysroot)
+
+        chmod_cmd = "chmod 644 %s" % fs
+        exec_cmd(chmod_cmd)
+
+        self.source_file = fs
+
+        return 0
+
+    def prepare_empty_partition_squashfs(self, cr_workdir, oe_builddir,
+                                         native_sysroot):
+        """
+        Prepare an empty squashfs partition.
+        """
+        msger.warning("Creating of an empty squashfs %s partition was attempted. " \
+                      "Proceeding as requested." % self.mountpoint)
+
+        fs = "%s/fs_%s.%s" % (cr_workdir, self.label, self.fstype)
+
+        # it is not possible to create a squashfs without source data,
+        # thus prepare an empty temp dir that is used as source
+        tmpdir = tempfile.mkdtemp()
+
+        squashfs_cmd = "mksquashfs %s %s -noappend" % \
+                       (tmpdir, fs)
+        exec_native_cmd(squashfs_cmd, native_sysroot)
+
+        os.rmdir(tmpdir)
+
+        # get the rootfs size in the right units for kickstart (Mb)
+        du_cmd = "du -Lbms %s" % fs
+        out = exec_cmd(du_cmd)
+        fs_size = out.split()[0]
+
+        self.size = fs_size
+        self.source_file = fs
+
+        return 0
+
+    def prepare_swap_partition(self, cr_workdir, oe_builddir, native_sysroot):
+        """
+        Prepare a swap partition.
+        """
+        fs = "%s/fs.%s" % (cr_workdir, self.fstype)
+
+        dd_cmd = "dd if=/dev/zero of=%s bs=1M seek=%d count=0" % \
+            (fs, self.size)
+        exec_cmd(dd_cmd)
+
+        import uuid
+        label_str = ""
+        if self.label:
+            label_str = "-L %s" % self.label
+        mkswap_cmd = "mkswap %s -U %s %s" % (label_str, str(uuid.uuid1()), fs)
+        exec_native_cmd(mkswap_cmd, native_sysroot)
+
+        self.source_file = fs
+
+        return 0
+
+class Wic_Partition(Mic_Partition):
+    removedKeywords = Mic_Partition.removedKeywords
+    removedAttrs = Mic_Partition.removedAttrs
+
+    def _getParser(self):
+        op = Mic_Partition._getParser(self)
+        # use specified source file to fill the partition
+        # and calculate partition size
+        op.add_option("--source", type="string", action="store",
+                      dest="source", default=None)
+        # use specified rootfs path to fill the partition
+        op.add_option("--rootfs-dir", type="string", action="store",
+                      dest="rootfs", default=None)
+        return op