version 2.0.21

Even in case of some error (for example invalid image).

(cherry picked from commit fc3347c914)

.travis.yml

@@ -1,39 +0,0 @@
-sudo: required
-dist: bionic
-language: python
-python:
-  - '2.7'
-install:
- - test -z "$TESTS_ONLY" || pip install -r ci/requirements.txt
- - test -n "$TESTS_ONLY" || git clone https://github.com/QubesOS/qubes-builder ~/qubes-builder
-script:
- - test -z "$TESTS_ONLY" || python -m unittest discover -v imgconverter -p test.py
- - test -n "$TESTS_ONLY" || ~/qubes-builder/scripts/travis-build
-env:
- - DIST_DOM0=fc31 USE_QUBES_REPO_VERSION=4.1 USE_QUBES_REPO_TESTING=1
- - DISTS_VM=fc29 USE_QUBES_REPO_VERSION=4.1 USE_QUBES_REPO_TESTING=1
- - DISTS_VM=fc30 USE_QUBES_REPO_VERSION=4.1 USE_QUBES_REPO_TESTING=1
- - DISTS_VM=stretch USE_QUBES_REPO_VERSION=4.1 USE_QUBES_REPO_TESTING=1
- - DISTS_VM=buster USE_QUBES_REPO_VERSION=4.1 USE_QUBES_REPO_TESTING=1
- - DISTS_VM=centos7 USE_QUBES_REPO_VERSION=4.1 USE_QUBES_REPO_TESTING=1
-
-jobs:
-  include:
-   - env: TESTS_ONLY=1
-     python: 2.7
-   - env: TESTS_ONLY=1
-     python: 3.5
-   - env: TESTS_ONLY=1
-     python: 3.6
-   - env: TESTS_ONLY=1
-     python: 3.7
-   - stage: deploy
-     python: 3.6
-     env: DIST_DOM0=fc31 TESTS_ONLY=
-     script: ~/qubes-builder/scripts/travis-deploy
-
-# don't build tags which are meant for code signing only
-branches:
-  except:
-    - /.*_.*/
-

Makefile

@@ -1,13 +1,13 @@
-ifeq ($(shell uname -m),x86_64)
-LIBDIR ?= /usr/lib64
-else
-LIBDIR ?= /usr/lib
+ifndef LIBDIR
+  ifeq ($(shell uname -m),x86_64)
+  LIBDIR = /usr/lib64
+  else
+  LIBDIR = /usr/lib
+  endif
 endif
-SCRIPTSDIR ?= /usr/lib/qubes
-SYSLIBDIR ?= /lib
-INCLUDEDIR ?= /usr/include
+INCLUDEDIR = /usr/include
 
-export LIBDIR SCRIPTSDIR SYSLIBDIR INCLUDEDIR
+export LIBDIR INCLUDEDIR
 
 help:
 	echo "Use rpmbuild to compile this pacakge"
@@ -19,26 +19,15 @@ rpms:
 all: 
 	$(MAKE) -C qrexec-lib all
 	$(MAKE) -C qmemman all
-	$(MAKE) -C imgconverter all
+	$(MAKE) -C core all
 
 install:
 	$(MAKE) -C udev install
 	$(MAKE) -C qrexec-lib install
 	$(MAKE) -C qmemman install
-	$(MAKE) -C imgconverter install
-
-install-fedora-kernel-support:
-	$(MAKE) -C dracut install
-	$(MAKE) -C kernel-modules install
-	$(MAKE) -C grub install-fedora
-
-install-debian-kernel-support:
-	$(MAKE) -C initramfs-tools install
-	$(MAKE) -C dracut install
-	$(MAKE) -C kernel-modules install
-	$(MAKE) -C grub install-debian
+	$(MAKE) -C core install
 
 clean:
 	$(MAKE) -C qrexec-lib clean
 	$(MAKE) -C qmemman clean
-	$(MAKE) -C imgconverter clean
+	$(MAKE) -C core clean

Makefile.builder

@@ -1,3 +1,3 @@
-RPM_SPEC_FILES := rpm_spec/qubes-utils.spec rpm_spec/qubes-kernel-vm-support.spec
+RPM_SPEC_FILES := rpm_spec/qubes-utils.spec
 ARCH_BUILD_DIRS := archlinux
 DEBIAN_BUILD_DIRS := debian

archlinux/PKGBUILD

@@ -4,16 +4,17 @@
 # then please put 'unknown'.
 
 # Maintainer: Olivier Medoc <o_medoc@yahoo.fr>
-pkgname=(qubes-vm-utils qubes-vm-kernel-support)
+pkgname=qubes-vm-utils
 pkgver=`cat version`
-pkgrel=10
+pkgrel=9
 epoch=
 pkgdesc="Common Linux files for Qubes VM."
 arch=("x86_64")
 url="http://qubes-os.org/"
 license=('GPL')
 groups=()
-makedepends=(gcc make pkgconfig 'python-setuptools' 'python2-setuptools')
+depends=(qubes-libvchan)
+makedepends=(qubes-libvchan)
 checkdepends=()
 optdepends=()
 provides=()
@@ -21,55 +22,30 @@ conflicts=()
 replaces=()
 backup=()
 options=('staticlibs')
+install=PKGBUILD-qubes-vm-utils.install
 changelog=
 
-source=(PKGBUILD-initcpio-hook.sh PKGBUILD-initcpio-install.sh)
+source=()
 
 noextract=()
-md5sums=(SKIP)
+md5sums=() #generate with 'makepkg -g'
 
 
 build() {
 
-for source in qrexec-lib udev qmemman core kernel-modules Makefile dracut imgconverter; do
+for source in qrexec-lib udev qmemman core Makefile; do
   (ln -s $srcdir/../$source $srcdir/$source)
 done
 
-# Build all with python2
-PYTHON=python2 make all
-
-# Build imgconverter with python3
-make -C imgconverter all
-
+make all LIBDIR=/usr/lib SBINDIR=/usr/bin
 
 }
 
-package_qubes-vm-utils() {
-depends=(imagemagick python2-cairo python2-pillow python2-numpy python-pillow python-numpy)
-install=PKGBUILD-qubes-vm-utils.install
+package() {
 
-# Install all for python2
-PYTHON=python2 make install DESTDIR=$pkgdir LIBDIR=/usr/lib SYSLIBDIR=/usr/lib SBINDIR=/usr/bin
-
-# Install imgconverter as python3
-make -C imgconverter install DESTDIR=$pkgdir LIBDIR=/usr/lib SYSLIBDIR=/usr/lib SBINDIR=/usr/bin
+make install DESTDIR=$pkgdir LIBDIR=/usr/lib SBINDIR=/usr/bin
 
 }
 
-package_qubes-vm-kernel-support() {
-depends=(mkinitcpio grub)
-install=PKGBUILD-qubes-vm-kernel-support.install
-
-mkdir -p ${pkgdir}/usr/lib/initcpio/install/
-mkdir -p ${pkgdir}/usr/lib/initcpio/hooks/
-mkdir -p ${pkgdir}/usr/lib/qubes/
-mkdir -p ${pkgdir}/usr/bin/
-
-install -m 611 ${srcdir}/PKGBUILD-initcpio-install.sh ${pkgdir}/usr/lib/initcpio/install/qubes
-install -m 611 ${srcdir}/PKGBUILD-initcpio-hook.sh ${pkgdir}/usr/lib/initcpio/hooks/qubes
-install -m 755 ${srcdir}/dracut/full-dmroot/qubes_cow_setup.sh ${pkgdir}/usr/lib/qubes/qubes_cow_setup.sh
-}
-
-
 # vim:set ts=2 sw=2 et:
 

archlinux/PKGBUILD-initcpio-hook.sh

@@ -1,9 +0,0 @@
-#!/usr/bin/ash
-
-run_earlyhook() {
-
-	msg "Starting Qubes copy on write setup script"
-
-	/usr/lib/qubes/qubes_cow_setup.sh
-
-}

archlinux/PKGBUILD-initcpio-install.sh

@@ -1,20 +0,0 @@
-#!/usr/bin/bash
-
-build() {
-
-  add_module "xen-blkfront"
-  add_binary "/usr/bin/sfdisk"
-  add_binary "/usr/bin/mkswap"
-  add_binary "/usr/bin/dmsetup"
-  add_binary "/usr/lib/qubes/qubes_cow_setup.sh"
-  
-  add_runscript
-  
-}
-
-help() {
-  cat <<HELPEOF
-This hook enables Qubes COW Setup (using lvm) in initramfs.
-HELPEOF
-}
-

archlinux/PKGBUILD-qubes-vm-kernel-support.install

@@ -1,27 +0,0 @@
-
-help() {
-  echo "Before using pvgrub, the kernel you want to use needs to be regenerated with Qubes kernel modules in the TemplateVM:"
-  echo "1/ Ensure that your kernel and kernel sources are installed (ex: pacman -S linux-lts linux-lts-headers)"
-  echo "2/ Ensure that grub config file has been generated for your kernel (ex: grub-mkconfig > /boot/grub/grub.cfg)"
-  echo "3/ Reinstall qubes-vm-kernel-support to ensure Qubes-OS kernel module is compiled and that the initcpio is rebuilt"
-  echo "This should then be handled automatically in your next kernel updates"
-}
-
-## arg 1:  the new package version
-post_install() {
-  echo "Adding qubes required hooks to mkinitcpio.conf"
-  sed 's/^HOOKS="base/HOOKS="lvm2 qubes base/' -i /etc/mkinitcpio.conf
-  help
-}
-
-post_upgrade() {
-  echo "Adding qubes required hooks to mkinitcpio.conf"
-  sed 's/^HOOKS="base/HOOKS="lvm2 qubes base/' -i /etc/mkinitcpio.conf
-  help
-}
-
-post_remove() {
-  echo "Removing qubes required hooks to mkinitcpio.conf"
-  sed 's/^HOOKS="lvm2 qubes base/HOOKS="base/' -i /etc/mkinitcpio.conf
-}
-

archlinux/PKGBUILD-qubes-vm-utils.install

@@ -2,8 +2,13 @@
 ## arg 1:  the new package version
 post_install() {
   ldconfig
-  /bin/systemctl enable qubes-meminfo-writer-dom0.service > /dev/null 2>&1
-  /bin/systemctl enable qubes-meminfo-writer.service > /dev/null 2>&1
+  if [ -r /etc/qubes-release ]; then
+      # dom0
+      /bin/systemctl enable qubes-meminfo-writer-dom0.service > /dev/null 2>&1
+  else
+      # VM
+      /bin/systemctl enable qubes-meminfo-writer.service > /dev/null 2>&1
+  fi
 }
 
 post_upgrade() {

ci/requirements.txt

@@ -1,2 +0,0 @@
-Pillow
-numpy

core/Makefile

@@ -0,0 +1,20 @@
+PYTHON = /usr/bin/python2
+PYTHON_SITEARCH = `python2 -c 'import distutils.sysconfig; print distutils.sysconfig.get_python_lib(1)'`
+
+all:
+	$(PYTHON) -m compileall .
+	$(PYTHON) -O -m compileall .
+.PHONY: all
+
+clean:
+	$(RM) *.py[co]
+.PHONY: clean
+
+install:
+	mkdir -p $(DESTDIR)/$(PYTHON_SITEARCH)/qubes/
+ifeq (1,${DEBIANBUILD})
+	cp *.py $(DESTDIR)/$(PYTHON_SITEARCH)/qubes/
+else
+	cp *.py* $(DESTDIR)/$(PYTHON_SITEARCH)/qubes/
+endif
+.PHONY: install

core/imgconverter.py

@@ -23,18 +23,16 @@ Toolkit for secure transfer and conversion of images between Qubes VMs.'''
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 
+import colorsys
+import math
 import os
 import re
-try:
-    from io import BytesIO
-except ImportError:
-    from cStringIO import StringIO as BytesIO
+import cStringIO as StringIO
 import subprocess
 import sys
 import unittest
 
-import PIL.Image
-import numpy
+import cairo
 
 # those are for "zOMG UlTRa HD! WalLLpapPer 8K!!1!" to work seamlessly;
 # 8192 * 5120 * 4 B = 160 MiB, so DoS by memory exhaustion is unlikely
@@ -44,13 +42,13 @@ MAX_HEIGHT = 5120
 # current max raster icon size in hicolor theme is 256 as of 2013/fedora-18
 # beyond that one probably shall use scalable icons
 # (SVG is currently unsupported)
-ICON_MAXSIZE = 2048
+ICON_MAXSIZE = 512
 
 # header consists of two decimal numbers, SPC and LF
-re_imghdr = re.compile(br'^\d+ \d+\n$')
-def imghdrlen(w, h):
-    # width & height are inclusive max vals, and +2 for ' ' and '\n'
-    return len(str(w)) + len(str(h)) + 2
+re_imghdr = re.compile(r'^\d+ \d+\n$')
+imghdrlen = lambda w, h: int(math.ceil(math.log10(w)) \
+    + math.ceil(math.log10(h)) \
+    + 2)
 
 class Image(object):
     def __init__(self, rgba, size):
@@ -72,87 +70,21 @@ get_from_stream(), get_from_vm(), get_xdg_icon_from_vm(), get_through_dvm()'''
         if p.wait():
             raise Exception('Conversion failed')
 
-    def save_pil(self, dst):
-        '''Save image to disk using PIL.'''
-
-        img = PIL.Image.frombytes('RGBA', self._size, self._rgba)
-        img.save(dst)
-
-    @property
-    def data(self):
-        return self._rgba
-
-    @property
-    def width(self):
-        return self._size[0]
-
-    @property
-    def height(self):
-        return self._size[1]
-
     def tint(self, colour):
         '''Return new tinted image'''
 
-        tr, tg, tb = hex_to_int(colour)
-        tM = max(tr, tg, tb)
-        tm = min(tr, tg, tb)
+        r, g, b = hex_to_float(colour)
+        h, _, s = colorsys.rgb_to_hls(r, g, b)
+        result = StringIO.StringIO()
 
-        # (trn/tdn, tgn/tdn, tbn/tdn) is the tint color with maximum saturation
-        if tm == tM:
-            trn = 1
-            tgn = 1
-            tbn = 1
-            tdn = 2
-        else:
-            trn = tr - tm
-            tgn = tg - tm
-            tbn = tb - tm
-            tdn = tM - tm
+        for i in xrange(0, self._size[0] * self._size[1] * 4, 4):
+            r, g, b, a = tuple(ord(c) / 255. for c in self._rgba[i:i+4])
+            _, l, _ = colorsys.rgb_to_hls(r, g, b)
+            r, g, b = colorsys.hls_to_rgb(h, l, s)
 
-        # use a 1D image representation since we only process a single pixel at a time
-        pixels = self._size[0] * self._size[1]
-        x = numpy.fromstring(self._rgba, 'B').reshape(pixels, 4)
-        r = x[:, 0]
-        g = x[:, 1]
-        b = x[:, 2]
-        a = x[:, 3]
-        M = numpy.maximum(numpy.maximum(r, g), b).astype('u4')
-        m = numpy.minimum(numpy.minimum(r, g), b).astype('u4')
+            result.write(''.join(chr(int(i * 255)) for i in [r, g, b, a]))
 
-        # Tn/Td is how much chroma range is reserved for the tint color
-        # 0 -> greyscale image becomes greyscale image
-        # 1 -> image becomes solid tint color
-        Tn = 1
-        Td = 4
-
-        # set chroma to the original pixel chroma mapped to the Tn/Td .. 1 range
-        # float c2 = (Tn/Td) + (1.0 - Tn/Td) * c
-
-        # set lightness to the original pixel lightness mapped to the range for the new chroma value
-        # float m2 = m * (1.0 - c2) / (1.0 - c)
-
-        c = M - m
-
-        c2 = (Tn * 255) + (Td - Tn) * c
-        c2d = Td
-
-        m2 = ((255 * c2d) - c2) * m
-        # the maximum avoids division by 0 when c = 255 (m2 is 0 anyway, so m2d doesn't matter)
-        m2d = numpy.maximum((255 - c) * c2d, 1)
-
-        # precomputed values
-        c2d_tdn = tdn * c2d
-        m2_c2d_tdn = m2 * c2d_tdn
-        m2d_c2d_tdn = m2d * c2d_tdn
-        c2_m2d = c2 * m2d
-
-        # float vt = m2 + tvn * c2
-        rt = ((m2_c2d_tdn + trn * c2_m2d) // m2d_c2d_tdn).astype('B')
-        gt = ((m2_c2d_tdn + tgn * c2_m2d) // m2d_c2d_tdn).astype('B')
-        bt = ((m2_c2d_tdn + tbn * c2_m2d) // m2d_c2d_tdn).astype('B')
-
-        xt = numpy.column_stack((rt, gt, bt, a))
-        return self.__class__(rgba=xt.tobytes(), size=self._size)
+        return self.__class__(rgba=result.getvalue(), size=self._size)
 
     @classmethod
     def load_from_file(cls, filename):
@@ -174,13 +106,6 @@ get_from_stream(), get_from_vm(), get_xdg_icon_from_vm(), get_through_dvm()'''
 
         return cls(rgba=rgba, size=size)
 
-    @classmethod
-    def load_from_file_pil(cls, filename):
-        '''Loads image from local file using PIL.'''
-        img = PIL.Image.open(filename)
-        img = img.convert('RGBA')
-        return cls(rgba=img.tobytes(), size=img.size)
-
     @classmethod
     def get_from_stream(cls, stream, max_width=MAX_WIDTH, max_height=MAX_HEIGHT):
         '''Carefully parse image data from stream.
@@ -223,8 +148,8 @@ get_from_stream(), get_from_vm(), get_xdg_icon_from_vm(), get_through_dvm()'''
     def get_from_vm(cls, vm, src, **kwargs):
         'Get image from VM by QUBESRPC (qubes.GetImageRGBA).'
 
-        p = vm.run_service('qubes.GetImageRGBA')
-        p.stdin.write('{0}\n'.format(src).encode())
+        p = vm.run('QUBESRPC qubes.GetImageRGBA dom0', passio_popen=True)
+        p.stdin.write('{0}\n'.format(src))
         p.stdin.close()
 
         try:
@@ -250,15 +175,16 @@ get_from_stream(), get_from_vm(), get_xdg_icon_from_vm(), get_through_dvm()'''
         '''Master end of image filter: writes untrusted image to stdout and
 expects header+RGBA on stdin. This method is invoked from qvm-imgconverter-client.'''
 
+        filetype = None
         if ':' in filename:
-            filetype, filename = filename.split(':', 1)
+            filetype, filename = filename.split(':', 1)[0]
             sys.stdout.write('{0}:-\n'.format(filetype))
         else:
             sys.stdout.write('-\n')
 
         try:
             sys.stdout.write(open(filename).read())
-        except Exception as e:
+        except Exception, e:
             raise Exception('Something went wrong: {0!s}'.format(e))
         finally:
             sys.stdout.close()
@@ -267,29 +193,112 @@ expects header+RGBA on stdin. This method is invoked from qvm-imgconverter-clien
 
         return cls.get_from_stream(sys.stdin, **kwargs)
 
-    def __eq__(self, other):
-        return self._size == other._size and self._rgba == other._rgba
+def hex_to_float(colour, channels=3, depth=8):
+    '''Convert hex colour definition to tuple of floats.'''
 
-    def __ne__(self, other):
-        return not self.__eq__(other)
+    if depth % 4 != 0:
+        raise NotImplementedError('depths not divisible by 4 are unsupported')
 
-def hex_to_int(colour, channels=3, depth=1):
-    '''Convert hex colour definition to tuple of ints.'''
-
-    length = channels * depth * 2
-    step = depth * 2
+    length = channels * depth / 4
+    step = depth / 4
 
     # get rid of '#' or '0x' in front of hex values
     colour = colour[-length:]
 
-    return tuple(int(colour[i:i+step], 0x10) for i in range(0, length, step))
+    return tuple(int(colour[i:i+step], 0x10) / float(2**depth - 1) for i in range(0, length, step))
 
 def tint(src, dst, colour):
     '''Tint image to reflect vm label.
 
-    src and dst may NOT specify ImageMagick format'''
+    src and dst may specify format, like png:aqq.gif'''
 
-    Image.load_from_file_pil(src).tint(colour).save_pil(dst)
+    Image.load_from_file(src).tint(colour).save(dst)
 
+def make_padlock(dst, colour, size=ICON_MAXSIZE):
+    cs = cairo.ImageSurface(cairo.FORMAT_ARGB32, size, size)
+
+    cr = cairo.Context(cs)
+    cr.set_source_rgb(*hex_to_float(colour))
+    cr.set_line_width(.125 * size)
+
+    cr.rectangle(.125 * size, .5 * size, .75 * size, .4375 * size)
+    cr.fill()
+
+    cr.move_to(.25 * size, .5 * size)
+    cr.line_to(.25 * size, .375 * size)
+    cr.arc(.5 * size, .375 * size, .25 * size, math.pi, 2 * math.pi)
+    cr.move_to(.75 * size, .375 * size) # this is unneccessary, but helps readability
+    cr.line_to(.75 * size, .5 * size)
+    cr.stroke()
+
+    cs.write_to_png(dst)
+
+
+class TestCaseImage(unittest.TestCase):
+    def setUp(self):
+        self.rgba = \
+            '\x00\x00\x00\xff' '\xff\x00\x00\xff' \
+            '\x00\xff\x00\xff' '\x00\x00\x00\xff'
+        self.size = (2, 2)
+
+        self.image = Image(rgba=self.rgba, size=self.size)
+
+    def test_00_init(self):
+        self.assertEqual(self.image._rgba, self.rgba)
+        self.assertEqual(self.image._size, self.size)
+
+    def test_01_tint(self):
+        image = self.image.tint('#0000ff')
+
+        self.assertEqual(image._rgba,
+            '\x00\x00\x00\xff' '\x00\x00\xff\xff'
+            '\x00\x00\xff\xff' '\x00\x00\x00\xff')
+
+    def test_10_get_from_stream(self):
+        io = StringIO.StringIO('{0[0]} {0[1]}\n{1}'.format(self.size, self.rgba))
+
+        image = Image.get_from_stream(io)
+
+        self.assertEqual(image._rgba, self.rgba)
+        self.assertEqual(image._size, self.size)
+
+    def test_11_get_from_stream_malformed(self):
+        io = StringIO.StringIO('{0[0]} {0[1]}\n{1}'.format(self.size, self.rgba[-1])) # one byte too short
+
+        with self.assertRaises(Exception):
+            image = Image.get_from_stream(io)
+
+    def test_12_get_from_stream_too_big(self):
+        io = StringIO.StringIO('{0[0]} {0[1]}\n{1}'.format(self.size, self.rgba)) # 2x2
+
+        with self.assertRaises(Exception):
+            image = Image.get_from_stream(io, max_width=1)
+
+        io.seek(0)
+        with self.assertRaises(Exception):
+            image = Image.get_from_stream(io, max_height=1)
+
+class TestCaseFunctionsAndConstants(unittest.TestCase):
+    def test_00_imghdrlen(self):
+        self.assertEqual(imghdrlen(8, 15), len('8 15\n'))
+
+    def test_01_re_imghdr(self):
+        self.assertTrue(re_imghdr.match('8 15\n'))
+        self.assertIsNone(re_imghdr.match('8 15'))
+        self.assertIsNone(re_imghdr.match('815\n'))
+        self.assertIsNone(re_imghdr.match('x yx\n'))
+
+    def test_10_hex_to_float_result_00(self):
+        self.assertEqual(hex_to_float('#000000'), (0.0, 0.0, 0.0))
+
+    def test_11_hex_to_float_result_ff(self):
+        self.assertEqual(hex_to_float('0xffffff'), (1.0, 1.0, 1.0))
+
+    def test_12_hex_to_float_depth_3_not_implemented(self):
+        with self.assertRaises(NotImplementedError):
+            hex_to_float('123456', depth=3)
+
+if __name__ == '__main__':
+    unittest.main()
 
 # vim: ft=python sw=4 ts=4 et

debian/changelog

@@ -1,703 +1,53 @@
-qubes-utils (4.1.3) unstable; urgency=medium
-
-  [ xaki23 ]
-  * partition full volatile for non-COW setups too
-
-  [ Frédéric Pierret (fepitre) ]
-  * travis: switch to bionic
-
-  [ Marek Marczykowski-Górecki ]
-  * travis: update python versions
-
-  [ Patrick Schleizer ]
-  * qubes-kernel-vm-support.preinst create folder /boot/grub
-  * qubes-kernel-vm-support.postinst run update-grub
-
-  [ Marek Marczykowski-Górecki ]
-  * debian: fix dependencies of qubes-kernel-vm-support pkg
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 07 Dec 2019 05:50:26 +0100
-
-qubes-utils (4.1.2) unstable; urgency=medium
-
-  [ xaki23 ]
-  * align volatile swap partition to 1Mb instead of 512b
-
-  [ Marek Marczykowski-Górecki ]
-  * rpm: update python2 deps
-  * Disable BLS config style in grub
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sun, 22 Sep 2019 05:10:19 +0200
-
-qubes-utils (4.1.1) unstable; urgency=medium
-
-  * initrd: mount / rw for the overlayfs setup time
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Mon, 10 Jun 2019 00:48:40 +0200
-
-qubes-utils (4.1.0) unstable; urgency=medium
-
-  * Remove qrexec related files
-  * Remove u2mfn module
-  * travis: update to R4.1
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 08 Jun 2019 03:20:55 +0200
-
-qubes-utils (4.0.24) unstable; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * Declare u2mfn module version, skip build for qubes kernels
-
-  [ Frédéric Pierret (fepitre) ]
-  * python3: use macro pkgversion
-  * travis: switch to xenial
-  * travis: remove older Fedora releases and add Fedora 30
-
-  [ Marek Marczykowski-Górecki ]
-  * initramfs: use overlayfs for /lib/modules, if available
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Thu, 06 Jun 2019 21:30:30 +0200
-
-qubes-utils (4.0.23) unstable; urgency=medium
-
-  * Disable scrubbing memory pages during initial balloon down
-  * dracut: fix checking for "Root filesystem" label, improve udev sync
-  * dracut: add a flag file indicating scrub-pages option support
-  * Adjust permissions of /dev/xen/hypercall
-  * Do not use /proc/xen for detecting dom0 anymore
-  * Really install xen-scrub-pages dracut module
-  * Add xen_scrub_pages=0 kernel option only if initramfs was rebuilt
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Mon, 25 Feb 2019 21:46:52 +0100
-
-qubes-utils (4.0.22) unstable; urgency=medium
-
-  * tests: skip img converter test if qubes-img-converter is not
-    installed
-  * imgconverter: allow icons up to 2048x2048
-  * tests: skip the other img converter test too
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Mon, 29 Oct 2018 01:03:59 +0100
-
-qubes-utils (4.0.21) unstable; urgency=medium
-
-  [ Rusty Bird ]
-  * Order qubes-meminfo-writer-dom0 before systemd-user-sessions
-
-  [ Marek Marczykowski-Górecki ]
-  * rpm: adjust for fc29
-  * travis: update Fedora and Debian versions
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 09 Oct 2018 00:25:11 +0200
-
-qubes-utils (4.0.20) unstable; urgency=medium
-
-  * udev: create /dev/mapper/dmroot -> xvda3 symlink when its mounted
-    directly
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 03 Jul 2018 21:11:00 +0200
-
-qubes-utils (4.0.19) unstable; urgency=medium
-
-  * rpm: use proper macros for systemd handling
-  * travis: add centos7
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 02 May 2018 17:55:09 +0200
-
-qubes-utils (4.0.18) unstable; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * udev: don't call udev-block-add-change for devices excluded by other
-    rules
-  * rpm: preparation for src.rpm building
-
-  [ Frédéric Pierret ]
-  * Makefile.builder: currently disable Mock
-  * Remove _builddir
-  * Fix debug symbols
-  * spec.in: add changelog placeholder
-
-  [ Marek Marczykowski-Górecki ]
-  * travis: update Fedora versions
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 21 Apr 2018 14:36:39 +0200
-
-qubes-utils (4.0.17) unstable; urgency=medium
-
-  [ Frédéric Pierret ]
-  * Fix python3 package names with respect to CentOS for consistency
-    with python34 names
-  * Remove busybox as it is not provided in RHEL7 anymore
-  * centos: fix python packages names
-  * drop busybox dependance
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 27 Feb 2018 15:17:12 +0100
-
-qubes-utils (4.0.16) unstable; urgency=medium
-
-  * qrexec: provide common function for handling service call
-  * debian: adjust required version after adding new function
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 20 Feb 2018 00:05:31 +0100
-
-qubes-utils (4.0.15) unstable; urgency=medium
-
-  * udev: update detecting usbip-connected devices
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Thu, 18 Jan 2018 19:07:40 +0100
-
-qubes-utils (4.0.14) unstable; urgency=medium
-
-  [ Reynir Björnsson ]
-  * Remove duplicate #define
-
-  [ Rusty Bird ]
-  * udev-block-add-change: ignore unconnected Network Block Device
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Fri, 12 Jan 2018 06:16:05 +0100
-
-qubes-utils (4.0.13) unstable; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * imgconverter: fix make_padlock function
-  * Update tests
-  * travis: run imgconverter unit tests
-  * Make tests python3 compatible
-  * travis: run tests also on python3
-  * travis: enable deploy stage for master-staging -> master gate
-
-  [ Gianluca Guida ]
-  * Fix qrexec-lib headers
-
-  [ Marek Marczykowski-Górecki ]
-  * imgconverter: fix handling explicit file type
-  * tests: integration tests for qvm-convert-img
-  * travis: run only unit tests
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 23 Dec 2017 02:50:19 +0100
-
-qubes-utils (4.0.12) unstable; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * debian: make it easier to spot missing files in debian/*.install
-  * debian: include drauct module in qubes-kernel-vm-support
-
-  [ Patrick Schleizer ]
-  * qubes-kernel-vm-support compatibility with dracut
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 12 Dec 2017 01:41:52 +0100
-
-qubes-utils (4.0.11) unstable; urgency=medium
-
-  [ qubesuser ]
-  * remove unused cairo import
-  * add Python pillow and numpy dependencies
-  * use PIL image library instead of ImageMagick to load/save images
-    when tinting
-  * reimplement tint algorithm with numpy for reasonable performance
-  * replace tinting algorithm with one that partially preserves
-    saturation too
-
-  [ Marek Marczykowski-Górecki ]
-  * Add missing classmethod decorator
-  * Make udev-block-add-change executable again
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 21 Nov 2017 05:34:50 +0100
-
-qubes-utils (4.0.10) unstable; urgency=medium
-
-  [ Olivier MEDOC ]
-  * archlinux: build imgconverter with both python2 and python3
-
-  [ qubesuser ]
-  * Speed up udev-block-add-change by not using xenstore
-
-  [ Your Name ]
-  * This commit specifies the integer width explicitly to match
-    `result_header_ext` etc.
-
-  [ Marek Marczykowski-Górecki ]
-  * Initialize pad field in filecopy final response
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 21 Nov 2017 04:46:49 +0100
-
-qubes-utils (4.0.9) unstable; urgency=medium
-
-  * Fix initramfs scripts on Debian
-  * qubes-prepare-vm-kernel: Include kernel and initramfs inside
-    modules.img
-  * initramfs: add support for variable partitions layout
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 17 Oct 2017 23:54:15 +0200
-
-qubes-utils (4.0.8) unstable; urgency=medium
-
-  [ Frédéric Pierret ]
-  * Fix CentOS dependencies: python3
-
-  [ Marek Marczykowski-Górecki ]
-  * travis: add fc26 build
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 30 Sep 2017 01:59:38 +0200
-
-qubes-utils (4.0.7) unstable; urgency=medium
-
-  [ Olivier MEDOC ]
-  * Fix gcc Werror because of a typo in a switch/case explicit
-    fallthrough comment
-
-  [ Marek Marczykowski-Górecki ]
-  * udev: fix loop devices exclusion based on directory flagfile
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Fri, 15 Sep 2017 13:43:18 +0200
-
-qubes-utils (4.0.6) unstable; urgency=medium
-
-  [ Jean-Philippe Ouellet ]
-  * Fix off-by-one error in header length calculation
-
-  [ Marek Marczykowski-Górecki ]
-  * udev: major cleanup in block devices handling
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 12 Sep 2017 04:52:48 +0200
-
-qubes-utils (4.0.5) unstable; urgency=medium
-
-  * udev: filter-out QEMU devices
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Fri, 11 Aug 2017 13:34:11 +0200
-
-qubes-utils (4.0.4) unstable; urgency=medium
-
-  [ HW42 ]
-  * u2mfn: get mfn via pte
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 29 Jul 2017 05:19:34 +0200
-
-qubes-utils (4.0.3) unstable; urgency=medium
-
-  [ Rusty Bird ]
-  * Fall back to sync() if syncfs() is unavailable
-
-  [ Marek Marczykowski-Górecki ]
-  * udev: don't list in qvm-block any device marked to be ignored by
-    udev
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Thu, 06 Jul 2017 19:41:04 +0200
-
-qubes-utils (4.0.2) unstable; urgency=medium
-
-  [ Paras Chetal ]
-  * Fix include header syntax
-
-  [ Marek Marczykowski-Górecki ]
-  * initramfs: use symlink for rw root.img, instead of dm-linear
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 24 Jun 2017 14:55:03 +0200
-
-qubes-utils (4.0.1) unstable; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * travis: switch to Qubes 4.0
-  * rpm: add missing build requires
-  * travis: drop fc23 vm packages building
-
-  [ unman ]
-  * Improve error message when file exists
-
-  [ Marek Marczykowski-Górecki ]
-  * rpm: packge qubesimgconverter for both python2 and python3
-  * imgconverter: make it really work on python3
-  * imgconverter: use core3 API in get_from_vm()
-  * rpm: add missing build requires
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Thu, 18 May 2017 01:54:46 +0200
-
-qubes-utils (4.0.0) unstable; urgency=medium
-
-  [ Wojtek Porczyk ]
-  * debian/control: remove unneeded qubesdb dependency
-  * Package imgconverter as separate Python module
-  * Move imggen module from artwork.
-
-  [ Marek Marczykowski-Górecki ]
-  * dracut: add missing 'die' function to 'simple' module
-  * qmemman-meminfo-writer: send simplified meminfo value
-  * Add python-setuptools to build depends
-  * debian: adjust file list
-  * Install python modules to /usr
-  * initramfs: move qubes_cow_setup hook to pre-trigger
-  * initramfs: add support for root.img with partition table
-  * debian: fix install location of python files
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 08 Apr 2017 13:58:53 +0200
-
-qubes-utils (3.2.4) unstable; urgency=medium
-
-  [ Johanna A ]
-  * Builds against 4.9
-
-  [ Marek Marczykowski-Górecki ]
-  * udev: use DM ignore device flag only for DM devices
-
-  [ Olivier MEDOC ]
-  * archlinux: clean up qubes-prepare-vm-kernel
-  * archlinux: clean up PKGBUILD and bump version number
-
-  [ Marek Marczykowski-Górecki ]
-  * travis: drop debootstrap workaround
-
-  [ Olivier MEDOC ]
-  * archlinux: use dracut native file instead of our own
-
-  [ M. Vefa Bicakci ]
-  * qubes-prepare-vm-kernel: Do not hardcode path to dracut
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Thu, 23 Mar 2017 11:34:01 +0100
-
-qubes-utils (3.2.3) wheezy; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * udev: make USB device version detection more generic
-  * debian: reformat Build-Depends
-  * debian: add pkg-config to Build-Depends
-
-  [ Rusty Bird ]
-  * udev-block-add-change: better mount status check
-  * udev-block-add-change: don't exclude already attached devs
-  * udev-block-add-change: simplify a check
-
-  [ Marek Marczykowski-Górecki ]
-  * udev-block-add-change: fix checking if partition is mounted
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sun, 17 Jul 2016 05:17:40 +0200
-
-qubes-utils (3.2.2) wheezy; urgency=medium
-
-  * udev: expose USB 3.0 devices for PV USB
-  * udev: ignore usbip-connected USB devices
-  * udev: fix removing USB entries
-  * qrexec-lib: convert tabs to spaces
-  * travis: initial version
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Thu, 02 Jun 2016 02:55:11 +0200
-
-qubes-utils (3.2.1) wheezy; urgency=medium
-
-  * udev: fix deadlock on xenstore access during dom0 boot
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 18 May 2016 02:59:37 +0200
-
-qubes-utils (3.2.0) wheezy; urgency=medium
-
-  [ Johanna A ]
-  * Builds against linux v4.6-rc4
-
-  [ Marek Marczykowski-Górecki ]
-  * u2mfn: build for both 4.6+ and older kernels
-  * udev/qvm-block: exclude devices used elsewhere
-  * udev/qvm-block: exclude device if its partition is already attached
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Mon, 16 May 2016 11:54:16 +0200
-
-qubes-utils (3.1.8) wheezy; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * udev: fix hiding devices from qvm-block
-
-  [ Olivier MEDOC ]
-  * archlinux: ensure gcc, make and pkgconfig are makedependencies
-  * archlinux: implement kernel-support
-  * kernel-support: compile u2mfn from source even if it has been never
-    built
-  * archlinux: add an install file specifically for vm-kernel-support
-  * archlinux: fix syntax errors in install file
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Mon, 08 Feb 2016 05:06:21 +0100
-
-qubes-utils (3.1.7) wheezy; urgency=medium
-
-  [ pqg ]
-  * Fix build (installation) on Archlinux
-
-  [ Marek Marczykowski-Górecki ]
-  * Fix building Fedora package after Archlinux build fixes
-  * udev: do not assume static device-mapper major number
-  * udev: ignore devices set to be ignore elsewhere
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Thu, 07 Jan 2016 05:59:40 +0100
-
-qubes-utils (3.1.6) wheezy; urgency=medium
-
-  [ HW42 ]
-  * debian: remove obsolete conffiles in /etc/udev/rules.d
-
-  [ Marek Marczykowski-Górecki ]
-  * qrexec-lib: add glibc version test check for having syncfs
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sun, 13 Dec 2015 04:38:27 +0100
-
-qubes-utils (3.1.5) wheezy; urgency=medium
-
-  * Fix for "debian: split libraries out of qubes-utils package"
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Mon, 30 Nov 2015 05:55:14 +0100
-
-qubes-utils (3.1.4) wheezy; urgency=medium
-
-  [ qubesuser ]
-  * Fix u2mfn.ko for > 16TB RAM by not truncating to 32-bit improperly
-
-  [ Rusty Bird ]
-  * Check if QubesIncoming filesystem supports O_TMPFILE
-
-  [ Marek Marczykowski-Górecki ]
-  * rpm: disable debuginfo subpackage in qubes-kernel-vm-support
-  * initramfs: fix swap size
-  * qrexec: add clarification commends in qrexec.h
-
-  [ Rusty Bird ]
-  * qfile-unpacker: syncfs() to avoid qvm-move-to-vm data loss
-
-  [ Marek Marczykowski-Górecki ]
-  * initramfs: use units of sectors in sfdisk call
-  * initramfs: initialize volatile.img partition table also in
-    TemplateVM
-  * qubes-prepare-vm-kernel: ensure proper permissions on initramfs
-  * debian: resolve quilt-build-dep-but-no-series-file lintian warning
-  * Move udev scripts to /usr/lib/qubes, move rules to /lib/udev/
-  * makefile: honor build env CFLAGS and LDFLAGS
-  * debian: split libraries out of qubes-utils package
-  * debian: break hardlink before modifying debian/....dkms
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Fri, 27 Nov 2015 20:44:04 +0100
-
-qubes-utils (3.1.3) wheezy; urgency=medium
-
-  * qrexec-lib: add qfile packing functions to libqubes-rpc-filecopy
-  * dracut: split 'full' dracut module into 'full-dmroot' and 'full-
-    modules'
-  * dracut: fix qubes-vm module dependencies
-  * dracut: mount only subdirectory of /lib/modules
-  * kernel-modules: build/install u2mfn module by default
-  * dracut: add dmsetup --noudevsync since we're running in pre-udev
-    hook
-  * debian: introduce qubes-kernel-vm-support package
-  * dracut: add a safety check preventing qubes_cow_setup.sh running in
-    dom0
-  * qrexec: define NOGUI_CMD_PREFIX
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 11 Nov 2015 05:12:11 +0100
-
-qubes-utils (3.1.2) wheezy; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * dracut: expand tabs to spaces
-  * dracut: abort on dmroot assemble error
-  * dracut: initialize volatile.img partitions
-  * libqrexec-utils: fix linker options
-  * libqrexec-utils: bring back buffered write helpers
-  * libqrexec-utils: bump SO version because of ABI change
-
-  [ qubesuser ]
-  * Fix u2mfn.ko for > 16TB RAM by not truncating to 32-bit improperly
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 24 Oct 2015 23:05:02 +0200
-
-qubes-utils (3.1.1) wheezy; urgency=medium
-
-  [ Marek Marczykowski-Górecki ]
-  * qfile-unpacker: do not call fdatasync() at each file (#1257)
-
-  [ qubesuser ]
-  * Report Xen balloon current size instead of Linux total memory
-  * use 64-bit integers for memory sizes to support > 2 TB RAM
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sun, 11 Oct 2015 02:48:12 +0200
-
-qubes-utils (3.1.0) wheezy; urgency=medium
-
-  * impconverter: add icon data getters
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 30 Sep 2015 22:13:51 +0200
-
-qubes-utils (3.0.10) wheezy; urgency=medium
-
-  [ Olivier MEDOC ]
-  * archlinux: update to match new dependancies and archlinux /usr/lib
-    guidelines
-  * archlinux: ensure /usr/sbin is not use to follow archlinux packaging
-    guidelines
-
-  [ Marek Marczykowski-Górecki ]
-  * imgconverter: ensure that connection to the VM is properly closed
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 08 Aug 2015 04:23:00 +0200
-
-qubes-utils (3.0.9) wheezy; urgency=medium
-
-  * imgconverter: use more meaningful error for empty icon image
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 08 Jul 2015 05:58:15 +0200
-
-qubes-utils (3.0.8) wheezy; urgency=medium
+qubes-utils (2.0.21) wheezy; urgency=medium
 
   * fedora: fix systemd service files permission
-  * udev: do not use a separate lock for udev block scripts
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 01 Jul 2015 07:11:28 +0200
-
-qubes-utils (3.0.7) wheezy; urgency=medium
-
-  * imgconverter: add eq operation for Image class
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 28 Apr 2015 13:23:09 +0200
-
-qubes-utils (3.0.6) wheezy; urgency=medium
-
-  * imgconverter: do not start gui daemon
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 15 Apr 2015 18:49:02 +0200
-
-qubes-utils (3.0.5) wheezy; urgency=medium
-
-  * udev: fix block devices ignoring rule
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Fri, 03 Apr 2015 11:26:47 +0200
-
-qubes-utils (3.0.4) wheezy; urgency=medium
-
-  * udev: ignore temporary devices created during VM startup
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 01 Apr 2015 00:11:15 +0200
-
-qubes-utils (3.0.3) wheezy; urgency=medium
-
   * qrexec-lib: enable compiler optimization
-  * udev: allow normal user to access /dev/xen/xenbus for vchan
-    connections
-  * Add VM kernel related files as qubes-core-vm-kernel-support package
-  * dracut: do not assume full udevd running inside initramfs
-  * Provide a script to generate VM kernel files
-  * dracut: Provide minimalistic initramfs files - no udev, no systemd
-  * dracut: load ext4 module manually in minimalistic dracut module
-  * Compile u2mfn module only when not already present
+  * udev: ignore temporary devices created during VM startup
+  * udev: fix block devices ignoring rule
+  * imgconverter: use more meaningful error for empty icon image
+  * imgconverter: ensure that connection to the VM is properly closed
 
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Thu, 26 Mar 2015 23:57:42 +0100
+ -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 29 Sep 2015 12:47:50 +0200
 
-qubes-utils (3.0.2) jessie; urgency=medium
+qubes-utils (2.0.20) jessie; urgency=medium
+
+  * archlinux: fix new packaging requirements related to run, sbin,
+    lib64...
+
+ -- Olivier MEDOC <o_medoc@yahoo.fr>  Mon, 02 Feb 2015 00:19:22 +0100
+
+qubes-utils (2.0.19) jessie; urgency=medium
 
-  [ Marek Marczykowski-Górecki ]
-  * qrexec: create stdin/out/err as sockets instead of pipes
   * debian: O_TMPFILE already defined
 
-  [ Jason Mehring ]
-  * Removed -Werror from qrexec Makefile to allow unpack to compile for
-    both Fedora 20 and 21
-  * debian:  Modified control file for new R3 Debian depends
-  * debian: Updated changelog to reflect 3.0.1 version change
-  * debian:  Added qubesdb-vm as a depend
-  * debian: Revert back to using libxen-dev as depend
+ -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sun, 01 Feb 2015 03:07:29 +0100
 
-  [ Marek Marczykowski-Górecki ]
-  * Revert "Removed -Werror from qrexec Makefile to allow unpack to
-    compile for both Fedora 20 and 21"
+qubes-utils (2.0.18) jessie; urgency=medium
 
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 17 Feb 2015 14:22:38 +0100
-
-qubes-utils (3.0.1) jessie; urgency=medium
-
-  [ Wojciech Zygmunt Porczyk ]
-  * v3.0.1
-  * This has to be versioned because of dependency in core-agent-linux.
-
-  [ Marek Marczykowski-Górecki ]
-  * Update for new vchan API, remove code not needed anymore
   * filecopy: fix handling ENOENT error
-  * Do not fail when file was successfully created.
-  * I will test before commit. I will test before commit. I will...
 
-  [ Marek Marczykowski-Górecki ]
+ -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Fri, 23 Jan 2015 01:22:10 +0100
+
+qubes-utils (2.0.17) jessie; urgency=medium
+
   * filecopy: really do not use O_TMPFILE when use_tmpfile==0
-  * When file opened with O_TMPFILE but use_tmpfile==0, the file will not be
-    linked to the directory (the code at the end of process_one_file_reg).
-    Additionally it is waste of time trying using O_TMPFILE when it's
-    already known it shouldn't be.
-    Also use_tmpfile==0 can mean we don't have access to /proc
-    (set_procfs_fd wasn't called), so even if linking the file to its
-    directory would be attempted, it would fail. This is the case for
-    dom0-updates copy.
 
-  [ Marek Marczykowski-Górecki ]
-  * filecopy: create new file unaccessible to the user until fully written
-    Otherwise source domain can modify (append) the file while the user
-    already is accessing it. While incoming files should be treated as
-    untrusted, this problem could allow file modification after the user
-    makes some sanity checks.
+ -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Wed, 21 Jan 2015 16:07:40 +0100
 
-  [ Marek Marczykowski-Górecki ]
-  * udev: update hotplug block scripts for QubesDB
-  * Some initial work was done, but apparently not complete and buggy.
+qubes-utils (2.0.16) jessie; urgency=medium
 
-  [ Marek Marczykowski-Górecki ]
-  * version 3.0.0
+  * filecopy: create new file unaccessible to the user until fully
+    written
 
-  [ Marek Marczykowski-Górecki ]
-  * Fix compile warnings
+ -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sun, 18 Jan 2015 18:05:35 +0100
 
-  [ Marek Marczykowski-Górecki ]
-  * qrexec-utils: add read_vchan_all and write_vchan_all
-  * Similar to read_all and write_all.
-
-  [ Marek Marczykowski-Górecki ]
-  * qrexec: update protocol
-    - add new messages
-    - uniform packet header
-    - organize #defines
-
-  [ Marek Marczykowski-Górecki ]
-  * code style: change tabs to spaces
-
-  [ Marek Marczykowski-Górecki ]
-  * qrexec-utils: disable write-stdin (buffered writes) compilation
-  * Not compatible with new qrexec protocol yet. To be done.
-
-  [ Marek Marczykowski-Górecki ]
-  * New qrexec protocol
-  * Use separate vchan to pass I/O for each process, which greatly simplify
-    protocol implementation (eg. no flow control needed).
-
-  [ Marek Marczykowski-Górecki ]
-  * udev: setup permissions on xen device nodes
-
-  [ Marek Marczykowski ]
-  * qrexec-lib: prevent deadlock on vchan
-    It can happen that we already cleared libvchan_fd pending state via
-    libvchan_wait, but data arrived later. This is especially true just
-    after connection, when client send unsolicited notification to server,
-    which can confuse it with some requested notification.
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 10 Feb 2015 00:00:00 +0100
-
-qubes-utils (3.0.0) jessie; urgency=medium
+qubes-utils (2.0.15) jessie; urgency=medium
 
   [ HW42 ]
   * use systemd in debian
 
-  [ Marek Marczykowski ]
-  * Update for new vchan API, remove code not needed anymore
-  * Use Qubes DB instead of Xenstore
-  * qrexec-lib: prevent deadlock on vchan
+ -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Mon, 01 Dec 2014 04:32:48 +0100
 
-  [ Marek Marczykowski-Górecki ]
-  * udev: setup permissions on xen device nodes
-  * New qrexec protocol
-  * qrexec-utils: disable write-stdin (buffered writes) compilation
-  * code style: change tabs to spaces
-  * qrexec: update protocol
-  * qrexec-utils: add read_vchan_all and write_vchan_all
-
- -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Sat, 22 Nov 2014 16:24:11 +0100
 qubes-utils (2.0.14) jessie; urgency=medium
 
   [ Marek Marczykowski-Górecki ]

debian/control

@@ -2,12 +2,7 @@ Source: qubes-utils
 Section: admin
 Priority: extra
 Maintainer: Davíð Steinn Geirsson <david@dsg.is>
-Build-Depends:
- libxen-dev,
- pkg-config,
- debhelper (>= 9.0.0),
- dh-systemd,
- python-setuptools,
+Build-Depends: libvchan-xen-dev, libxen-dev, debhelper (>= 8.0.0), quilt (>= 0.60), dh-systemd
 Standards-Version: 3.9.3
 Homepage: http://www.qubes-os.org
 Vcs-Git: http://dsg.is/qubes/qubes-linux-utils.git
@@ -15,41 +10,8 @@ Vcs-Git: http://dsg.is/qubes/qubes-linux-utils.git
 
 Package: qubes-utils
 Architecture: any
-Depends: lsb-base, python-pil, python-numpy, python3-pil, python3-numpy, ${shlibs:Depends}, ${misc:Depends}
+Depends: libvchan-xen, lsb-base, ${shlibs:Depends}, ${misc:Depends}
 Conflicts: qubes-linux-utils
-Breaks: qubes-core-agent (<< 3.1.4)
 Recommends: python2.7
 Description: Qubes Linux utilities
  This package includes the basic qubes utilities necessary for domU.
-
-Package: qubes-kernel-vm-support
-Architecture: any
-Depends:
- busybox,
- initramfs-tools | dracut,
- grub2-common,
- ${misc:Depends}
-Description: Qubes VM kernel and initramfs modules
- This package contains:
- 1. mkinitramfs module required to setup Qubes VM root filesystem. This package
- is needed in VM only when the VM uses its own kernel (via pvgrub or so).
- Otherwise initrd is provided by dom0.
-
-Package: libqubes-rpc-filecopy2
-Architecture: any
-Depends: ${shlibs:Depends}, ${misc:Depends}
-Breaks: qubes-utils (<< 3.1.4)
-Replaces: qubes-utils (<< 3.1.4)
-Description: Qubes file copy protocol library
- This library can be used for both sending files using qfile protocol and for
- receiving them.
-
-Package: libqubes-rpc-filecopy-dev
-Architecture: any
-Section: libdevel
-Depends: libqubes-rpc-filecopy2 (= ${binary:Version}), ${misc:Depends}
-Breaks: qubes-utils (<< 3.1.4)
-Replaces: qubes-utils (<< 3.1.4)
-Description: Development headers for libqrexec-utils
- This package contains files required to compile Qubes file copy related
- utilities like qfile-agent.

debian/libqubes-rpc-filecopy-dev.install

@@ -1,2 +0,0 @@
-usr/include/libqubes-rpc-filecopy.h
-usr/lib/libqubes-rpc-filecopy.so

debian/libqubes-rpc-filecopy2.install

@@ -1 +0,0 @@
-usr/lib/libqubes-rpc-filecopy.so.2*

debian/libqubes-rpc-filecopy2.shlibs

@@ -1 +0,0 @@
-libqubes-rpc-filecopy 2 libqubes-rpc-filecopy2 (>= 3.1.3)

debian/qubes-kernel-vm-support.install

@@ -1,8 +0,0 @@
-usr/share/initramfs-tools/scripts/local-top/scrub_pages
-usr/share/initramfs-tools/scripts/local-top/qubes_cow_setup
-usr/share/initramfs-tools/hooks/qubes_vm
-usr/lib/dracut/modules.d/90qubes-vm/*
-usr/lib/dracut/modules.d/90qubes-vm-modules/*
-usr/lib/dracut/modules.d/90qubes-vm-simple/*
-usr/lib/dracut/modules.d/80xen-scrub-pages/*
-etc/default/grub.d/30-qubes-kernel-vm-support.cfg

debian/qubes-kernel-vm-support.postinst

@@ -1,64 +0,0 @@
-#!/bin/bash
-# postinst script for qubes-kernel-vm-support
-#
-# see: dh_installdeb(1)
-
-set -e
-
-# The postinst script may be called in the following ways:
-#   * <postinst> 'configure' <most-recently-configured-version>
-#   * <old-postinst> 'abort-upgrade' <new version>
-#   * <conflictor's-postinst> 'abort-remove' 'in-favour' <package>
-#     <new-version>
-#   * <postinst> 'abort-remove'
-#   * <deconfigured's-postinst> 'abort-deconfigure' 'in-favour'
-#     <failed-install-package> <version> 'removing'
-#     <conflicting-package> <version>
-#
-#    For details, see http://www.debian.org/doc/debian-policy/ or
-# https://www.debian.org/doc/debian-policy/ch-maintainerscripts.html or
-# the debian-policy package
-
-
-case "${1}" in
-    configure)
-        if [ -x /usr/sbin/update-initramfs ]; then
-            if update-initramfs -u; then
-                # "milestone" initramfs update version:
-                # 1 - addition of xen scrub_pages enabling code
-                echo 1 > /var/lib/qubes/initramfs-updated
-            fi
-        fi
-        ;;
-
-    abort-upgrade|abort-remove|abort-deconfigure)
-        exit 0
-        ;;
-
-    *)
-        echo "postinst called with unknown argument \`${1}'" >&2
-        exit 1
-        ;;
-esac
-
-# dh_installdeb will replace this with shell code automatically
-# generated by other debhelper scripts.
-
-#DEBHELPER#
-
-## https://phabricator.whonix.org/T377
-## Debian has no update-grub trigger yet:
-## https://bugs.debian.org/481542
-
-if command -v update-grub >/dev/null 2>&1; then
-   update-grub || \
-      echo "$DPKG_MAINTSCRIPT_PACKAGE $DPKG_MAINTSCRIPT_NAME ERROR: Running \
-'update-grub' failed with exit code $?. $DPKG_MAINTSCRIPT_PACKAGE is most \
-likely only the trigger, not the cause. Unless you know this is not an issue, \
-you should fix running 'update-grub', otherwise your system might no longer \
-boot." >&2
-fi
-
-exit 0
-
-# vim: set ts=4 sw=4 sts=4 et :

debian/qubes-kernel-vm-support.preinst

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-set -e
-
-mkdir --parents /boot/grub || true
-
-#DEBHELPER#
-
-exit 0

debian/qubes-utils.install

@@ -1,5 +0,0 @@
-usr/sbin/meminfo-writer
-lib/systemd/system/qubes-meminfo-writer.service
-usr/lib/qubes/*
-usr/lib/python2.7/dist-packages/qubesimgconverter*/*
-lib/udev/*

debian/qubes-utils.maintscript

@@ -1,3 +0,0 @@
-rm_conffile /etc/udev/rules.d/99-qubes-block.rules 3.1.6~
-rm_conffile /etc/udev/rules.d/99-qubes-usb.rules 3.1.6~
-rm_conffile /etc/udev/rules.d/99-qubes-misc.rules 3.1.6~

debian/rules

@@ -1,7 +1,7 @@
 #!/usr/bin/make -f
 # -*- makefile -*-
 
-export DESTDIR=$(shell pwd)/debian/tmp
+export DESTDIR=$(shell pwd)/debian/qubes-utils
 
 # Uncomment this to turn on verbose mode.
 #export DH_VERBOSE=1
@@ -13,10 +13,4 @@ override_dh_auto_build:
 	make all LIBDIR=/usr/lib DEBIANBUILD=1
 
 override_dh_auto_install:
-	make install LIBDIR=/usr/lib DEBIANBUILD=1 PYTHON_PREFIX_ARG=--install-layout=deb
-	make install-debian-kernel-support LIBDIR=/usr/lib DEBIANBUILD=1 
-	# dom0-only file
-	rm -f $(DESTDIR)/usr/sbin/qubes-prepare-vm-kernel
-
-override_dh_install:
-	dh_install --fail-missing
+	make install LIBDIR=/usr/lib DEBIANBUILD=1 

dracut/Makefile

@@ -1,5 +0,0 @@
-install:
-	$(MAKE) -C simple
-	$(MAKE) -C full-dmroot
-	$(MAKE) -C full-modules
-	$(MAKE) -C xen-balloon-scrub-pages

dracut/full-dmroot/Makefile

@@ -1,4 +0,0 @@
-install:
-	install -d $(DESTDIR)/usr/lib/dracut/modules.d/90qubes-vm
-	install module-setup.sh qubes_cow_setup.sh \
-		$(DESTDIR)/usr/lib/dracut/modules.d/90qubes-vm/

dracut/full-dmroot/module-setup.sh

@@ -1,21 +0,0 @@
-#!/bin/bash
-
-check() {
-    if xenstore-read qubes-vm-type &>/dev/null || qubesdb-read /qubes-vm-type &>/dev/null; then
-        return 0
-    else
-        return 255
-    fi
-}
-
-depends() {
-    echo dm
-    return 0
-}
-
-install() {
-    inst_hook pre-trigger 90 $moddir/qubes_cow_setup.sh
-    inst_multiple \
-        sfdisk \
-        mkswap
-}

dracut/full-dmroot/qubes_cow_setup.sh

@@ -1,114 +0,0 @@
-#!/bin/sh
-#
-# This file should be placed in pre-trigger directory in dracut's initramfs, or
-# scripts/local-top in case of initramfs-tools
-#
-
-# initramfs-tools (Debian) API
-PREREQS=""
-case "$1" in
-    prereqs)
-        # This runs during initramfs creation
-        echo "$PREREQS"
-        exit 0
-        ;;
-esac
-
-# This runs inside real initramfs
-if [ -r /scripts/functions ]; then
-    # We're running in Debian's initramfs
-    . /scripts/functions
-    alias die=panic
-    alias info=true
-    alias warn=log_warning_msg
-    alias log_begin=log_begin_msg
-    alias log_end=log_end_msg
-elif [ -r /lib/dracut-lib.sh ]; then
-    . /lib/dracut-lib.sh
-    alias log_begin=info
-    alias log_end=true
-else
-    die() {
-        echo "$@"
-        exit 1
-    }
-    alias info=echo
-    alias warn=echo
-    alias log_begin=echo
-    alias log_end=true
-fi
-
-
-info "Qubes initramfs script here:"
-
-if ! grep -q 'root=[^ ]*dmroot' /proc/cmdline; then
-    warn "dmroot not requested, probably not a Qubes VM"
-    exit 0
-fi
-
-if [ -e /dev/mapper/dmroot ] ; then 
-    die "Qubes: FATAL error: /dev/mapper/dmroot already exists?!"
-fi
-
-modprobe xenblk || modprobe xen-blkfront || warn "Qubes: Cannot load Xen Block Frontend..."
-
-log_begin "Waiting for /dev/xvda* devices..."
-udevadm settle --exit-if-exists=/dev/xvda
-log_end
-
-# prefer partition if exists
-if [ -b /dev/xvda1 ]; then
-    if [ -e "/dev/disk/by-partlabel/Root\\x20filesystem" ]; then
-        ROOT_DEV=$(basename $(readlink "/dev/disk/by-partlabel/Root\\x20filesystem"))
-    else
-        ROOT_DEV=xvda3
-    fi
-else
-    ROOT_DEV=xvda
-fi
-
-SWAP_SIZE=$(( 1024 * 1024 * 2 )) # sectors, 1GB
-
-if [ `cat /sys/class/block/$ROOT_DEV/ro` = 1 ] ; then
-    log_begin "Qubes: Doing COW setup for AppVM..."
-
-    while ! [ -e /dev/xvdc ]; do sleep 0.1; done
-    VOLATILE_SIZE=$(cat /sys/class/block/xvdc/size) # sectors
-    ROOT_SIZE=$(cat /sys/class/block/$ROOT_DEV/size) # sectors
-    if [ $VOLATILE_SIZE -lt $SWAP_SIZE ]; then
-        die "volatile.img smaller than 1GB, cannot continue"
-    fi
-    sfdisk -q --unit S /dev/xvdc >/dev/null <<EOF
-xvdc1: type=82,start=2048,size=$SWAP_SIZE
-xvdc2: type=83
-EOF
-    if [ $? -ne 0 ]; then
-        die "Qubes: failed to setup partitions on volatile device"
-    fi
-    while ! [ -e /dev/xvdc1 ]; do sleep 0.1; done
-    mkswap /dev/xvdc1
-    while ! [ -e /dev/xvdc2 ]; do sleep 0.1; done
-
-    echo "0 `cat /sys/class/block/$ROOT_DEV/size` snapshot /dev/$ROOT_DEV /dev/xvdc2 N 16" | \
-        dmsetup --noudevsync create dmroot || die "Qubes: FATAL: cannot create dmroot!"
-    dmsetup mknodes dmroot
-    log_end
-else
-    log_begin "Qubes: Doing R/W setup for TemplateVM..."
-    while ! [ -e /dev/xvdc ]; do sleep 0.1; done
-    sfdisk -q --unit S /dev/xvdc >/dev/null <<EOF
-xvdc1: type=82,start=2048,size=$SWAP_SIZE
-xvdc3: type=83
-EOF
-    if [ $? -ne 0 ]; then
-        die "Qubes: failed to setup partitions on volatile device"
-    fi
-    while ! [ -e /dev/xvdc1 ]; do sleep 0.1; done
-    mkswap /dev/xvdc1
-    mkdir -p /etc/udev/rules.d
-    printf 'KERNEL=="%s", SYMLINK+="mapper/dmroot"\n' "$ROOT_DEV" >> \
-        /etc/udev/rules.d/99-root.rules
-    udevadm control -R
-    udevadm trigger
-    log_end
-fi

dracut/full-modules/Makefile

@@ -1,4 +0,0 @@
-install:
-	install -d $(DESTDIR)/usr/lib/dracut/modules.d/90qubes-vm-modules
-	install module-setup.sh mount_modules.sh \
-		$(DESTDIR)/usr/lib/dracut/modules.d/90qubes-vm-modules/

dracut/full-modules/module-setup.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-check() {
-    return 255
-}
-
-install() {
-    inst_hook pre-pivot 50 $moddir/mount_modules.sh
-}

dracut/full-modules/mount_modules.sh

@@ -1,25 +0,0 @@
-#!/bin/sh
-#
-# This file should be places in pre-pivot directory in dracut's initramfs
-#
-
-
-kver="`uname -r`"
-if ! [ -d "$NEWROOT/lib/modules/$kver/kernel" ]; then
-    echo "Waiting for /dev/xvdd device..."
-    while ! [ -e /dev/xvdd ]; do sleep 0.1; done
-
-    # Mount only `uname -r` subdirectory, to leave the rest of /lib/modules writable
-    mkdir -p /tmp/modules
-    mount -n -t ext3 /dev/xvdd /tmp/modules
-    if ! [ -d "$NEWROOT/lib/modules/$kver" ]; then
-        mount "$NEWROOT" -o remount,rw
-        mkdir -p "$NEWROOT/lib/modules/$kver"
-        mount "$NEWROOT" -o remount,ro
-    fi
-    mount --bind "/tmp/modules/$kver" "$NEWROOT/lib/modules/$kver"
-    umount /tmp/modules
-    rmdir /tmp/modules
-fi
-
-killall udevd systemd-udevd

dracut/simple/Makefile

@@ -1,6 +0,0 @@
-install:
-	install -d $(DESTDIR)/usr/lib/dracut/modules.d/90qubes-vm-simple
-	install module-setup.sh init.sh \
-		$(DESTDIR)/usr/lib/dracut/modules.d/90qubes-vm-simple/
-	# flag indicating the module will (re-)enable scrub-pages option
-	touch $(DESTDIR)/usr/lib/dracut/modules.d/90qubes-vm-simple/xen-scrub-pages-supported

dracut/simple/init.sh

@@ -1,121 +0,0 @@
-#!/bin/sh
-echo "Qubes initramfs script here:"
-
-mkdir -p /proc /sys /dev
-mount -t proc proc /proc
-mount -t sysfs sysfs /sys
-mount -t devtmpfs devtmpfs /dev
-
-if [ -w /sys/devices/system/xen_memory/xen_memory0/scrub_pages ]; then
-    # re-enable xen-balloon pages scrubbing, after initial balloon down
-    echo 1 > /sys/devices/system/xen_memory/xen_memory0/scrub_pages
-fi
-
-if [ -e /dev/mapper/dmroot ] ; then 
-    echo "Qubes: FATAL error: /dev/mapper/dmroot already exists?!"
-fi
-
-/sbin/modprobe xenblk || /sbin/modprobe xen-blkfront || echo "Qubes: Cannot load Xen Block Frontend..."
-
-die() {
-    echo "$@" >&2
-    exit 1
-}
-
-echo "Waiting for /dev/xvda* devices..."
-while ! [ -e /dev/xvda ]; do sleep 0.1; done
-
-# prefer partition if exists
-if [ -b /dev/xvda1 ]; then
-    if [ -d /dev/disk/by-partlabel ]; then
-        ROOT_DEV=$(basename $(readlink "/dev/disk/by-partlabel/Root\\x20filesystem"))
-    else
-        ROOT_DEV=$(grep -l "PARTNAME=Root filesystem" /sys/block/xvda/xvda*/uevent |\
-            grep -o "xvda[0-9]")
-    fi
-    if [ -z "$ROOT_DEV" ]; then
-        # fallback to third partition
-        ROOT_DEV=xvda3
-    fi
-else
-    ROOT_DEV=xvda
-fi
-
-SWAP_SIZE=$(( 1024 * 1024 * 2 )) # sectors, 1GB
-
-if [ `cat /sys/class/block/$ROOT_DEV/ro` = 1 ] ; then
-    echo "Qubes: Doing COW setup for AppVM..."
-
-    while ! [ -e /dev/xvdc ]; do sleep 0.1; done
-    VOLATILE_SIZE=$(cat /sys/class/block/xvdc/size) # sectors
-    ROOT_SIZE=$(cat /sys/class/block/$ROOT_DEV/size) # sectors
-    if [ $VOLATILE_SIZE -lt $SWAP_SIZE ]; then
-        die "volatile.img smaller than 1GB, cannot continue"
-    fi
-    /sbin/sfdisk -q --unit S /dev/xvdc >/dev/null <<EOF
-xvdc1: type=82,start=2048,size=$SWAP_SIZE
-xvdc2: type=83
-EOF
-    if [ $? -ne 0 ]; then
-        echo "Qubes: failed to setup partitions on volatile device"
-        exit 1
-    fi
-    while ! [ -e /dev/xvdc1 ]; do sleep 0.1; done
-    /sbin/mkswap /dev/xvdc1
-    while ! [ -e /dev/xvdc2 ]; do sleep 0.1; done
-
-    echo "0 `cat /sys/class/block/$ROOT_DEV/size` snapshot /dev/$ROOT_DEV /dev/xvdc2 N 16" | \
-        /sbin/dmsetup create dmroot || { echo "Qubes: FATAL: cannot create dmroot!"; exit 1; }
-    /sbin/dmsetup mknodes dmroot
-    echo Qubes: done.
-else
-    echo "Qubes: Doing R/W setup for TemplateVM..."
-    while ! [ -e /dev/xvdc ]; do sleep 0.1; done
-    /sbin/sfdisk -q --unit S /dev/xvdc >/dev/null <<EOF
-xvdc1: type=82,start=2048,size=$SWAP_SIZE
-xvdc3: type=83
-EOF
-    if [ $? -ne 0 ]; then
-        die "Qubes: failed to setup partitions on volatile device"
-    fi
-    while ! [ -e /dev/xvdc1 ]; do sleep 0.1; done
-    /sbin/mkswap /dev/xvdc1
-    ln -s ../$ROOT_DEV /dev/mapper/dmroot
-    echo Qubes: done.
-fi
-
-/sbin/modprobe ext4
-
-mkdir -p /sysroot
-mount /dev/mapper/dmroot /sysroot -o rw
-NEWROOT=/sysroot
-
-kver="`uname -r`"
-if ! [ -d "$NEWROOT/lib/modules/$kver/kernel" ]; then
-    echo "Waiting for /dev/xvdd device..."
-    while ! [ -e /dev/xvdd ]; do sleep 0.1; done
-
-    mkdir -p /tmp/modules
-    mount -n -t ext3 /dev/xvdd /tmp/modules
-    if /sbin/modprobe overlay; then
-        # if overlayfs is supported, use that to provide fully writable /lib/modules
-        if ! [ -d "$NEWROOT/lib/.modules_work" ]; then
-            mkdir -p "$NEWROOT/lib/.modules_work"
-        fi
-        mount -t overlay none $NEWROOT/lib/modules -o lowerdir=/tmp/modules,upperdir=$NEWROOT/lib/modules,workdir=$NEWROOT/lib/.modules_work
-    else
-        # otherwise mount only `uname -r` subdirectory, to leave the rest of
-        # /lib/modules writable
-        if ! [ -d "$NEWROOT/lib/modules/$kver" ]; then
-            mkdir -p "$NEWROOT/lib/modules/$kver"
-        fi
-        mount --bind "/tmp/modules/$kver" "$NEWROOT/lib/modules/$kver"
-    fi
-    umount /tmp/modules
-    rmdir /tmp/modules
-fi
-
-umount /dev /sys /proc
-mount "$NEWROOT" -o remount,ro
-
-exec /sbin/switch_root $NEWROOT /sbin/init

dracut/simple/module-setup.sh

@@ -1,34 +0,0 @@
-#!/bin/bash
-
-check() {
-    return 255
-}
-
-depends() {
-    echo dm
-    return 0
-}
-
-installkernel() {
-    hostonly='' instmods overlay
-}
-
-install() {
-    inst $moddir/init.sh /init
-    inst_multiple \
-        basename \
-        readlink \
-        uname \
-        grep \
-        kmod \
-        modprobe \
-        ln \
-        switch_root \
-        mount \
-        umount \
-        mkdir \
-        rmdir \
-        sleep \
-        sfdisk \
-        mkswap
-}

dracut/xen-balloon-scrub-pages/Makefile

@@ -1,4 +0,0 @@
-install:
-	install -d $(DESTDIR)/usr/lib/dracut/modules.d/80xen-scrub-pages
-	install module-setup.sh scrub_pages.sh \
-		$(DESTDIR)/usr/lib/dracut/modules.d/80xen-scrub-pages/

dracut/xen-balloon-scrub-pages/module-setup.sh

@@ -1,17 +0,0 @@
-#!/bin/bash
-
-check() {
-    if [ -r /usr/share/qubes/marker-vm ]; then
-        return 0
-    else
-        return 255
-    fi
-}
-
-depends() {
-    return 0
-}
-
-install() {
-    inst_hook pre-trigger 60 $moddir/scrub_pages.sh
-}

dracut/xen-balloon-scrub-pages/scrub_pages.sh

@@ -1,20 +0,0 @@
-#!/bin/sh
-#
-# This file should be placed in pre-trigger directory in dracut's initramfs, or
-# scripts/local-top in case of initramfs-tools
-#
-
-# initramfs-tools (Debian) API
-PREREQS=""
-case "$1" in
-    prereqs)
-        # This runs during initramfs creation
-        echo "$PREREQS"
-        exit 0
-        ;;
-esac
-
-if [ -w /sys/devices/system/xen_memory/xen_memory0/scrub_pages ]; then
-    # re-enable xen-balloon pages scrubbing, after initial balloon down
-    echo 1 > /sys/devices/system/xen_memory/xen_memory0/scrub_pages
-fi

grub/Makefile

@@ -1,7 +0,0 @@
-install-fedora:
-	install -D -m 0644 grub.qubes-kernel-vm-support \
-		$(DESTDIR)/etc/default/grub.qubes-kernel-vm-support
-
-install-debian:
-	install -D -m 0644 grub.qubes-kernel-vm-support \
-		$(DESTDIR)/etc/default/grub.d/30-qubes-kernel-vm-support.cfg

grub/grub.qubes-kernel-vm-support

@@ -1,8 +0,0 @@
-# add kernel options only in VM, and only if initramfs is updated already
-# /var/lib/qubes/initramfs-updated contains "milestone" initramfs update version:
-# 1 - addition of xen scrub_pages enabling code
-if [ -r /usr/share/qubes/marker-vm ] &&
-        [ "$(cat /var/lib/qubes/initramfs-updated 2>/dev/null || echo 0)" -ge 1 ]; then
-    GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX xen_scrub_pages=0"
-fi
-GRUB_ENABLE_BLSCFG=false

imgconverter/Makefile

@@ -1,18 +0,0 @@
-PYTHON ?= python
-
-all:
-	$(PYTHON) setup.py build
-.PHONY: all
-
-clean:
-	$(PYTHON) setup.py clean
-.PHONY: clean
-
-install:
-	$(PYTHON) setup.py install -O1 $(PYTHON_PREFIX_ARG) --root $(DESTDIR)
-#ifeq (1,${DEBIANBUILD})
-#	cp *.py $(DESTDIR)/$(PYTHON_SITEARCH)/qubes/
-#else
-#	cp *.py* $(DESTDIR)/$(PYTHON_SITEARCH)/qubes/
-#endif
-.PHONY: install

imgconverter/qubesimgconverter/imggen.py

@@ -1,90 +0,0 @@
-#!/usr/bin/env python2
-
-'''Qubes Image Generation
-
-Toolkit for generating icons and images for Qubes OS.'''
-
-# The Qubes OS Project, http://www.qubes-os.org
-#
-# Copyright (C) 2013-2015  Wojtek Porczyk <woju@invisiblethingslab.com>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# 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.
-
-from __future__ import absolute_import
-
-__all__ = ['make_padlock']
-
-import math
-import cairo
-
-import qubesimgconverter
-
-def polar(r, a):
-    return r * math.cos(a), r * math.sin(a)
-
-def make_padlock(dst, colour, size=qubesimgconverter.ICON_MAXSIZE, disp=False):
-    cs = cairo.ImageSurface(cairo.FORMAT_ARGB32, size, size)
-
-    cr = cairo.Context(cs)
-    cr.set_source_rgb(*[c / 256.0
-        for c in qubesimgconverter.hex_to_int(colour)])
-    cr.set_line_width(.125 * size)
-
-    cr.rectangle(.125 * size, .5 * size, .75 * size, .4375 * size)
-    cr.fill()
-
-    cr.move_to(.25 * size, .5 * size)
-    cr.line_to(.25 * size, .375 * size)
-    cr.arc(.5 * size, .375 * size, .25 * size, math.pi, 2 * math.pi)
-    cr.move_to(.75 * size, .375 * size) # this is unneccessary, but helps readability
-    cr.line_to(.75 * size, .5 * size)
-    cr.stroke()
-
-    if disp:
-        # Careful with those. I have run into severe
-        # floating point errors when adjusting.
-        arrows = 2
-        gap = 45 * math.pi / 180
-        offset = 0
-        radius = .1875 * size
-        width = 0.05 * size
-        cx = .5 * size
-#       cy = .6875 * size
-        cy = .625 * size
-
-        arrow = 2 * math.pi / arrows
-
-        for i in range(arrows):
-            cr.move_to(cx, cy)
-            cr.rel_move_to(*polar(  radius - width,         offset + i * arrow))
-            cr.arc(cx, cy,          radius - width,         offset + i * arrow, offset + (i + 1) * arrow - gap)
-            cr.rel_line_to(*polar(  width,                  offset + (i + 1) * arrow - gap + math.pi))
-            cr.rel_line_to(*polar(  width * math.sqrt(8),   offset + (i + 1) * arrow - gap + math.pi / 4))
-            cr.rel_line_to(*polar(  width * math.sqrt(8),   offset + (i + 1) * arrow - gap - math.pi / 4))
-            cr.rel_line_to(*polar(  width,                  offset + (i + 1) * arrow - gap + math.pi))
-            cr.arc_negative(cx, cy, radius + width,         offset + (i + 1) * arrow - gap, offset + i * arrow)
-            cr.close_path()
-
-        cr.set_source_rgb(0xcc / 256.0, 0, 0)  # tango's red
-        cr.set_line_width(.0500 * size)
-        cr.set_line_join(cairo.LINE_JOIN_ROUND)
-        cr.stroke_preserve()
-
-        cr.set_source_rgb(1.0, 1.0, 1.0)
-        cr.fill()
-
-    cs.write_to_png(dst)
-
-# vim: ft=python sw=4 ts=4 et

imgconverter/qubesimgconverter/test.py

@@ -1,81 +0,0 @@
-#!/usr/bin/env python2
-
-from __future__ import absolute_import
-
-try:
-    from io import BytesIO
-except ImportError:
-    from cStringIO import StringIO as BytesIO
-import unittest
-
-import qubesimgconverter
-
-class TestCaseImage(unittest.TestCase):
-    def setUp(self):
-        self.rgba = \
-            b'\x00\x00\x00\xff' b'\xff\x00\x00\xff' \
-            b'\x00\xff\x00\xff' b'\x00\x00\x00\xff'
-        self.size = (2, 2)
-
-        self.image = qubesimgconverter.Image(rgba=self.rgba, size=self.size)
-
-    def test_00_init(self):
-        self.assertEqual(self.image._rgba, self.rgba)
-        self.assertEqual(self.image._size, self.size)
-
-    def test_01_tint(self):
-        image = self.image.tint('#0000ff')
-
-        self.assertEqual(image._rgba,
-            b'\x00\x00\x3f\xff' b'\x00\x00\xff\xff'
-            b'\x00\x00\xff\xff' b'\x00\x00\x3f\xff')
-
-    def test_10_get_from_stream(self):
-        io = BytesIO('{0[0]} {0[1]}\n'.format(self.size).encode() + self.rgba)
-
-        image = qubesimgconverter.Image.get_from_stream(io)
-
-        self.assertEqual(image._rgba, self.rgba)
-        self.assertEqual(image._size, self.size)
-
-    def test_11_get_from_stream_malformed(self):
-        io = BytesIO('{0[0]} {0[1]}\n'.format(self.size).encode() +
-                     self.rgba[:-1])  # one byte too short
-
-        with self.assertRaises(Exception):
-            image = qubesimgconverter.Image.get_from_stream(io)
-
-    def test_12_get_from_stream_too_big(self):
-        io = BytesIO('{0[0]} {0[1]}\n'.format(self.size).encode() + self.rgba)  # 2x2
-
-        with self.assertRaises(Exception):
-            image = qubesimgconverter.Image.get_from_stream(io, max_width=1)
-
-        io.seek(0)
-        with self.assertRaises(Exception):
-            image = qubesimgconverter.Image.get_from_stream(io, max_height=1)
-
-class TestCaseFunctionsAndConstants(unittest.TestCase):
-    def test_00_imghdrlen(self):
-        self.assertEqual(qubesimgconverter.imghdrlen(8, 15), len('8 15\n'))
-        self.assertEqual(qubesimgconverter.imghdrlen(100, 100), len('100 100\n'))
-
-    def test_01_re_imghdr(self):
-        self.assertTrue(qubesimgconverter.re_imghdr.match(b'8 15\n'))
-        self.assertIsNone(qubesimgconverter.re_imghdr.match(b'8 15'))
-        self.assertIsNone(qubesimgconverter.re_imghdr.match(b'815\n'))
-        self.assertIsNone(qubesimgconverter.re_imghdr.match(b'x yx\n'))
-
-    def test_10_hex_to_float_result_00(self):
-        self.assertEqual(qubesimgconverter.hex_to_int('#000000'), (0, 0, 0))
-
-    def test_11_hex_to_float_result_ff(self):
-        self.assertEqual(qubesimgconverter.hex_to_int('0xffffff'),
-            (0xff, 0xff, 0xff))
-
-    def test_12_hex_to_float_depth_3_not_implemented(self):
-        with self.assertRaises(ValueError):
-            qubesimgconverter.hex_to_int('123456', depth=3)
-
-if __name__ == '__main__':
-    unittest.main()

imgconverter/qubesimgconverter/test_integ.py

@@ -1,99 +0,0 @@
-# vim: fileencoding=utf-8
-
-#
-# The Qubes OS Project, https://www.qubes-os.org/
-#
-# Copyright (C) 2017
-#                   Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# 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.
-#
-
-import itertools
-import qubes.tests.extra
-
-
-# noinspection PyPep8Naming
-class TC_00_ImgConverter(qubes.tests.extra.ExtraTestCase):
-    def setUp(self):
-        super(TC_00_ImgConverter, self).setUp()
-        # noinspection PyAttributeOutsideInit
-        self.vm = self.create_vms(["vm"])[0]
-        self.vm.start()
-
-        self.image_size = 16
-        # RGB data for the image
-        self.image_data = [
-            (0xff // self.image_size * x, 0x80, 0xff // self.image_size * y,
-            0xff)
-            for x in range(self.image_size)
-            for y in range(self.image_size)]
-
-    def create_img(self, filename):
-        '''Create image file with given sample content
-
-        :param filename: output filename
-        '''
-        p = self.vm.run(
-            'convert -size {}x{} -depth 8 rgba:- "{}" 2>&1'.format(
-                self.image_size, self.image_size, filename),
-            passio_popen=True)
-        bytes_data = bytes(bytearray(itertools.chain(*self.image_data)))
-        (stdout, _) = p.communicate(bytes_data)
-        if p.returncode != 0:
-            self.skipTest('failed to create test image: {}'.format(stdout))
-
-    def assertCorrectlyTransformed(self, orig_filename, trusted_filename):
-        self.assertEquals(
-            self.vm.run('test -r "{}"'.format(trusted_filename), wait=True), 0)
-        self.assertEquals(
-            self.vm.run('test -r "{}"'.format(orig_filename), wait=True), 0)
-        # retrieve original image too, to compensate for compression
-        p = self.vm.run('convert "{}" rgb:-'.format(orig_filename),
-            passio_popen=True)
-        orig_image_data, _ = p.communicate()
-        p = self.vm.run('convert "{}" rgb:-'.format(trusted_filename),
-            passio_popen=True)
-        trusted_image_data, _ = p.communicate()
-        self.assertEquals(orig_image_data, trusted_image_data)
-
-    def test_000_png(self):
-        self.create_img('test.png')
-        p = self.vm.run('qvm-convert-img test.png trusted.png 2>&1',
-            passio_popen=True)
-        (stdout, _) = p.communicate()
-        if p.returncode == 127:
-            self.skipTest('qubes-img-converter not installed')
-        self.assertEquals(p.returncode, 0, 'qvm-convert-img failed: {}'.format(
-            stdout))
-        self.assertCorrectlyTransformed('test.png', 'trusted.png')
-
-    def test_010_filename_with_spaces(self):
-        self.create_img('test with spaces.png')
-        p = self.vm.run('qvm-convert-img "test with spaces.png" '
-                        '"trusted with spaces.png" 2>&1',
-            passio_popen=True)
-        (stdout, _) = p.communicate()
-        if p.returncode == 127:
-            self.skipTest('qubes-img-converter not installed')
-        self.assertEquals(p.returncode, 0, 'qvm-convert-img failed: {}'.format(
-            stdout))
-        self.assertCorrectlyTransformed(
-            'test with spaces.png', 'trusted with spaces.png')
-
-
-def list_tests():
-    tests = [TC_00_ImgConverter]
-    return tests

imgconverter/setup.py

@@ -1,19 +0,0 @@
-import setuptools
-
-setuptools.setup(
-    name='qubesimgconverter',
-    version=open('../version').read().strip(),
-    author='Invisible Things Lab',
-    author_email='woju@invisiblethingslab.com',
-    description='Toolkit for secure transfer and conversion of images between Qubes VMs.',
-    license='GPL2+',
-    url='https://www.qubes-os.org/',
-    packages=['qubesimgconverter'],
-    entry_points={
-        'qubes.tests.extra.for_template':
-            'qubesimgconverter = qubesimgconverter.test_integ:list_tests',
-    }
-
-)
-
-# vim: ts=4 sts=4 sw=4 et

initramfs-tools/Makefile

@@ -1,8 +0,0 @@
-install:
-	install -D local-top/qubes_cow_setup.sh \
-		$(DESTDIR)/usr/share/initramfs-tools/scripts/local-top/qubes_cow_setup
-	install -D local-top/scrub_pages.sh \
-		$(DESTDIR)/usr/share/initramfs-tools/scripts/local-top/scrub_pages
-	install -D qubes_vm \
-		$(DESTDIR)/usr/share/initramfs-tools/hooks/qubes_vm
-	

initramfs-tools/local-top/qubes_cow_setup.sh

@@ -1 +0,0 @@
-../../dracut/full-dmroot/qubes_cow_setup.sh

initramfs-tools/local-top/scrub_pages.sh

@@ -1 +0,0 @@
-../../dracut/xen-balloon-scrub-pages/scrub_pages.sh

initramfs-tools/qubes_vm

@@ -1,21 +0,0 @@
-#!/bin/sh
-
-if grep -q '^[0-]*$' /sys/hypervisor/uuid; then
-    echo "Not intended for dom0"
-    exit 0
-fi
-
-PREREQS="dmsetup"
-case "$1" in
-prereqs)
-    echo "$PREREQS"
-    exit 0
-    ;;
-esac
-
-. /usr/share/initramfs-tools/hook-functions
-
-copy_exec /sbin/sfdisk
-copy_exec /sbin/mkswap
-force_load xen-blkfront
-force_load dm-snapshot

kernel-modules/Makefile

@@ -1,5 +0,0 @@
-install:	install-scripts
-
-install-scripts:
-	install -d $(DESTDIR)/usr/sbin
-	install qubes-prepare-vm-kernel $(DESTDIR)/usr/sbin

kernel-modules/qubes-prepare-vm-kernel

@@ -1,84 +0,0 @@
-#!/bin/sh
-#
-# The Qubes OS Project, http://www.qubes-os.org
-#
-# Copyright (C) 2015  Marek Marczykowski-Górecki
-#                       <marmarekp@invisiblethingslab.com>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# 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.
-#
-#
-
-set -e
-
-basedir=/var/lib/qubes/vm-kernels
-
-function build_modules_img() {
-    kver=$1
-    initramfs=$2
-    output_file=$3
-
-    mkdir /tmp/qubes-modules-$kver
-    truncate -s 400M /tmp/qubes-modules-$kver.img
-    mkfs -t ext3 -F /tmp/qubes-modules-$kver.img > /dev/null
-    mount /tmp/qubes-modules-$kver.img /tmp/qubes-modules-$kver -o loop
-    cp -a -t /tmp/qubes-modules-$kver /lib/modules/$kver
-    cp "/boot/vmlinuz-$kver" "/tmp/qubes-modules-$kver/vmlinuz"
-    cp "$initramfs" "/tmp/qubes-modules-$kver/initramfs"
-    umount /tmp/qubes-modules-$kver
-    rmdir /tmp/qubes-modules-$kver
-    mv /tmp/qubes-modules-$kver.img $output_file
-}
-
-function build_initramfs() {
-    kver=$1
-    output_file=$2
-
-    dracut --nomdadmconf --nolvmconf --force \
-        --modules "kernel-modules qubes-vm-simple" \
-        --conf /dev/null --confdir /var/empty \
-        -d "xenblk xen-blkfront cdrom ext4 jbd2 crc16 dm_snapshot" \
-        $output_file $kver
-    chmod 644 "$output_file"
-}
-
-if [ -z "$1" ]; then
-    echo "Usage: $0 <kernel-version> [<display-kernel-version>]" >&2
-    exit 1
-fi
-
-if [ ! -r /boot/vmlinuz-$1 -o ! -d /lib/modules/$1 ]; then
-    echo "ERROR: Kernel version $1 not installed" >&2
-    exit 1
-fi
-
-kernel_version=$1
-if [ -n "$2" ]; then
-    output_dir="$basedir/$2"
-else
-    output_dir="$basedir/$kernel_version"
-fi
-
-echo "--> Building files for $kernel_version in $output_dir"
-
-mkdir -p "$output_dir"
-cp "/boot/vmlinuz-$kernel_version" "$output_dir/vmlinuz"
-echo "---> Generating initramfs"
-build_initramfs "$kernel_version" "$output_dir/initramfs"
-echo "---> Generating modules.img"
-build_modules_img "$kernel_version" "$output_dir/initramfs" \
-    "$output_dir/modules.img"
-
-echo "--> Done."

qmemman/Makefile

@@ -1,7 +1,8 @@
 CC=gcc
-CFLAGS+=-Wall -Wextra -Werror -g -O3
+CFLAGS=-Wall -Wextra -Werror -g -O3
+SBINDIR ?= /usr/sbin
+
 all:	meminfo-writer
-SBINDIR?=/usr/sbin
 
 _XENSTORE_H=$(shell ls /usr/include/xenstore.h)
 ifneq "$(_XENSTORE_H)" ""
@@ -9,9 +10,9 @@ ifneq "$(_XENSTORE_H)" ""
 endif
 
 meminfo-writer: meminfo-writer.o
-	$(CC) $(LDFLAGS) -g -o meminfo-writer meminfo-writer.o -lxenstore
+	$(CC) -g -o meminfo-writer meminfo-writer.o -lxenstore
 install:
-	install -D meminfo-writer $(DESTDIR)/$(SBINDIR)/meminfo-writer
+	install -D meminfo-writer $(DESTDIR)$(SBINDIR)/meminfo-writer
 ifeq (1,${DEBIANBUILD})
 	install -d $(DESTDIR)/lib/systemd/system/
 	install -m 0644 qubes-meminfo-writer.service $(DESTDIR)/lib/systemd/system/

qmemman/meminfo-writer.c

@@ -16,21 +16,21 @@ int used_mem_change_threshold;
 int delay;
 int usr1_received;
 
-const char *parse(const char *meminfo_buf, const char* dom_current_buf)
+const char *parse(const char *buf)
 {
-	const char *ptr = meminfo_buf;
+	const char *ptr = buf;
 	static char outbuf[4096];
-	long long val;
+	int val;
 	int len;
 	int ret;
-	long long MemTotal = 0, MemFree = 0, Buffers = 0, Cached = 0, SwapTotal =
+	int MemTotal = 0, MemFree = 0, Buffers = 0, Cached = 0, SwapTotal =
 	    0, SwapFree = 0;
 	unsigned long long key;
-	long long used_mem, used_mem_diff;
+	long used_mem, used_mem_diff;
 	int nitems = 0;
 
 	while (nitems != (1<<6)-1 || !*ptr) {
-		ret = sscanf(ptr, "%*s %lld kB\n%n", &val, &len);
+		ret = sscanf(ptr, "%*s %d kB\n%n", &val, &len);
 		if (ret < 1 || len < (int)sizeof (unsigned long long)) {
 			ptr += len;
 			continue;
@@ -59,12 +59,6 @@ const char *parse(const char *meminfo_buf, const char* dom_current_buf)
 		ptr += len;
 	}
 
-	if(dom_current_buf) {
-		long long DomTotal = strtoll(dom_current_buf, 0, 10);
-		if(DomTotal)
-			MemTotal = DomTotal;
-	}
-
 	used_mem =
 	    MemTotal - Buffers - Cached - MemFree + SwapTotal - SwapFree;
 	if (used_mem < 0)
@@ -78,7 +72,10 @@ const char *parse(const char *meminfo_buf, const char* dom_current_buf)
 	    || (used_mem > prev_used_mem && used_mem / 10 > (MemTotal+12) / 13
 		&& used_mem_diff > used_mem_change_threshold/2)) {
 		prev_used_mem = used_mem;
-		sprintf(outbuf, "%lld", used_mem);
+		sprintf(outbuf,
+			"MemTotal: %d kB\nMemFree: %d kB\nBuffers: %d kB\nCached: %d kB\n"
+			"SwapTotal: %d kB\nSwapFree: %d kB\n", MemTotal,
+			MemFree, Buffers, Cached, SwapTotal, SwapFree);
 		return outbuf;
 	}
 	return NULL;
@@ -106,50 +103,13 @@ void usr1_handler(int sig __attribute__((__unused__))) {
 	usr1_received = 1;
 }
 
-static inline void pread0_string(int fd, char* buf, size_t buf_size)
-{
-	int n = pread(fd, buf, buf_size - 1, 0);
-	if (n < 0) {
-		perror("pread");
-		exit(1);
-	}
-	buf[n] = 0;
-}
-
-static void update(struct xs_handle *xs, int meminfo_fd, int dom_current_fd)
-{
-	char dom_current_buf[32];
-	char dom_current_buf2[32];
-	char meminfo_buf[4096];
-	const char *meminfo_data;
-
-	pread0_string(dom_current_fd, dom_current_buf, sizeof(dom_current_buf));
-
-	/* check until the dom current reading is stable to avoid races */
-	for(;;) {
-		pread0_string(meminfo_fd, meminfo_buf, sizeof(meminfo_buf));
-		pread0_string(dom_current_fd, dom_current_buf2, sizeof(dom_current_buf2));
-
-		if(!strcmp(dom_current_buf, dom_current_buf2))
-			break;
-
-		pread0_string(meminfo_fd, meminfo_buf, sizeof(meminfo_buf));
-		pread0_string(dom_current_fd, dom_current_buf, sizeof(dom_current_buf));
-
-		if(!strcmp(dom_current_buf, dom_current_buf2))
-			break;
-	}
-
-	meminfo_data = parse(meminfo_buf, dom_current_buf);
-	if (meminfo_data)
-		send_to_qmemman(xs, meminfo_data);
-}
-
 int main(int argc, char **argv)
 {
-	int meminfo_fd, dom_current_fd;
-	struct xs_handle *xs;
+	char buf[4096];
 	int n;
+	const char *meminfo_data;
+	int fd;
+	struct xs_handle *xs;
 
 	if (argc != 3 && argc != 4)
 		usage();
@@ -161,8 +121,6 @@ int main(int argc, char **argv)
 	if (argc == 4) {
 		pid_t pid;
 		sigset_t mask, oldmask;
-		int fd;
-		char buf[32];
 
 		switch (pid = fork()) {
 			case -1:
@@ -197,14 +155,9 @@ int main(int argc, char **argv)
 		}
 	}
 
-	meminfo_fd = open("/proc/meminfo", O_RDONLY);
-	if (meminfo_fd < 0) {
-		perror("open /proc/meminfo");
-		exit(1);
-	}
-	dom_current_fd = open("/sys/devices/system/xen_memory/xen_memory0/info/current_kb", O_RDONLY);
-	if (dom_current_fd < 0) {
-		perror("open /sys/devices/system/xen_memory/xen_memory0/info/current_kb");
+	fd = open("/proc/meminfo", O_RDONLY);
+	if (fd < 0) {
+		perror("open meminfo");
 		exit(1);
 	}
 	xs = xs_domain_open();
@@ -214,8 +167,15 @@ int main(int argc, char **argv)
 	}
 	if (argc == 3) {
 		/* if not waiting for signal, fork after first info written to xenstore */
-		update(xs, meminfo_fd, dom_current_fd);
-
+		n = pread(fd, buf, sizeof(buf)-1, 0);
+		if (n < 0) {
+			perror("pread");
+			exit(1);
+		}
+		buf[n] = 0;
+		meminfo_data = parse(buf);
+		if (meminfo_data)
+			send_to_qmemman(xs, meminfo_data);
 		n = fork();
 		if (n < 0) {
 			perror("fork");
@@ -227,8 +187,15 @@ int main(int argc, char **argv)
 	}
 
 	for (;;) {
-		update(xs, meminfo_fd, dom_current_fd);
+		n = pread(fd, buf, sizeof(buf)-1, 0);
+		if (n < 0) {
+			perror("pread");
+			exit(1);
+		}
+		buf[n] = 0;
+		meminfo_data = parse(buf);
+		if (meminfo_data)
+			send_to_qmemman(xs, meminfo_data);
 		usleep(delay);
 	}
 }
-

qmemman/qubes-meminfo-writer-dom0.service

@@ -1,6 +1,5 @@
 [Unit]
 Description=Qubes memory information reporter
-Before=systemd-user-sessions.service
 After=qubes-core.service qubes-qmemman.service
 ConditionPathExists=/var/run/qubes/qmemman.sock
 

qrexec-lib/Makefile

@@ -1,10 +1,20 @@
 CC=gcc
 CFLAGS+=-I. -g -O2 -Wall -Wextra -Werror -pie -fPIC
-SO_VER=2
-LDFLAGS+=-shared
+XENLIBS=-lxenctrl -lxenstore -lvchan
+COMMONIOALL=ioall.o
+SO_VER=1
+LDFLAGS=-shared
 
-all: libqubes-rpc-filecopy.so.$(SO_VER)
-libqubes-rpc-filecopy.so.$(SO_VER): ioall.o copy-file.o crc32.o unpack.o pack.o
+_XENSTORE_H=$(shell ls /usr/include/xenstore.h)
+ifneq "$(_XENSTORE_H)" ""
+	CFLAGS+= -DUSE_XENSTORE_H
+endif
+
+
+all: libqrexec-utils.so.$(SO_VER) libqubes-rpc-filecopy.so.$(SO_VER)
+libqrexec-utils.so.$(SO_VER): unix-server.o ioall.o buffer.o write-stdin.o exec.o txrx-vchan.o
+	$(CC) $(LDFLAGS) -Wl,-soname,$@ -o $@ $^ $(XENLIBS)
+libqubes-rpc-filecopy.so.$(SO_VER): ioall.o copy-file.o crc32.o unpack.o
 	$(CC) $(LDFLAGS) -Wl,-soname,$@ -o $@ $^
 
 %.a:
@@ -14,7 +24,12 @@ clean:
 
 install:
 	mkdir -p $(DESTDIR)$(LIBDIR)
+	cp libqrexec-utils.so.$(SO_VER) $(DESTDIR)$(LIBDIR)
+	ln -s libqrexec-utils.so.$(SO_VER) $(DESTDIR)$(LIBDIR)/libqrexec-utils.so
 	cp libqubes-rpc-filecopy.so.$(SO_VER) $(DESTDIR)$(LIBDIR)
 	ln -s libqubes-rpc-filecopy.so.$(SO_VER) $(DESTDIR)$(LIBDIR)/libqubes-rpc-filecopy.so
 	mkdir -p $(DESTDIR)$(INCLUDEDIR)
+	cp libqrexec-utils.h $(DESTDIR)$(INCLUDEDIR)
 	cp libqubes-rpc-filecopy.h $(DESTDIR)$(INCLUDEDIR)
+	cp qrexec.h $(DESTDIR)$(INCLUDEDIR)
+

qrexec-lib/buffer.c

@@ -0,0 +1,115 @@
+/*
+ * The Qubes OS Project, http://www.qubes-os.org
+ *
+ * Copyright (C) 2010  Rafal Wojtczuk  <rafal@invisiblethingslab.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "libqrexec-utils.h"
+
+#define BUFFER_LIMIT 50000000
+static int total_mem;
+static char *limited_malloc(int len)
+{
+	char *ret;
+	total_mem += len;
+	if (total_mem > BUFFER_LIMIT) {
+		fprintf(stderr, "attempt to allocate >BUFFER_LIMIT\n");
+		exit(1);
+	}
+	ret = malloc(len);
+	if (!ret) {
+		perror("malloc");
+		exit(1);
+	}
+	return ret;
+}
+
+static void limited_free(char *ptr, int len)
+{
+	free(ptr);
+	total_mem -= len;
+}
+
+void buffer_init(struct buffer *b)
+{
+	b->buflen = 0;
+	b->data = NULL;
+}
+
+void buffer_free(struct buffer *b)
+{
+	if (b->buflen)
+		limited_free(b->data, b->buflen);
+	buffer_init(b);
+}
+
+/*
+The following two functions can be made much more efficient.
+Yet the profiling output show they are not significant CPU hogs, so
+we keep them so simple to make them obviously correct.
+*/
+
+void buffer_append(struct buffer *b, const char *data, int len)
+{
+	int newsize;
+	char *qdata;
+	if (len < 0 || len > BUFFER_LIMIT) {
+		fprintf(stderr, "buffer_append %d\n", len);
+		exit(1);
+	}
+	if (len == 0)
+		return;
+	newsize = len + b->buflen;
+	qdata = limited_malloc(len + b->buflen);
+	memcpy(qdata, b->data, b->buflen);
+	memcpy(qdata + b->buflen, data, len);
+	buffer_free(b);
+	b->buflen = newsize;
+	b->data = qdata;
+}
+
+void buffer_remove(struct buffer *b, int len)
+{
+	int newsize;
+	char *qdata = NULL;
+	if (len < 0 || len > b->buflen) {
+		fprintf(stderr, "buffer_remove %d/%d\n", len, b->buflen);
+		exit(1);
+	}
+	newsize = b->buflen - len;
+	if (newsize > 0) {
+		qdata = limited_malloc(newsize);
+		memcpy(qdata, b->data + len, newsize);
+	}
+	buffer_free(b);
+	b->buflen = newsize;
+	b->data = qdata;
+}
+
+int buffer_len(struct buffer *b)
+{
+	return b->buflen;
+}
+
+void *buffer_data(struct buffer *b)
+{
+	return b->data;
+}

qrexec-lib/copy-file.c

@@ -1,49 +1,49 @@
 #include <unistd.h>
-#include "ioall.h"
+#include <ioall.h>
 #include "libqubes-rpc-filecopy.h"
 #include "crc32.h"
 
 notify_progress_t *notify_progress_func = NULL;
 void register_notify_progress(notify_progress_t *func)
 {
-    notify_progress_func = func;
+	notify_progress_func = func;
 }
 
 int copy_file(int outfd, int infd, long long size, unsigned long *crc32)
 {
-    char buf[4096];
-    long long written = 0;
-    int ret;
-    int count;
-    while (written < size) {
-        if (size - written > (int)sizeof(buf))
-            count = sizeof buf;
-        else
-            count = size - written;
-        ret = read(infd, buf, count);
-        if (!ret)
-            return COPY_FILE_READ_EOF;
-        if (ret < 0)
-            return COPY_FILE_READ_ERROR;
-        /* acumulate crc32 if requested */
-        if (crc32)
-            *crc32 = Crc32_ComputeBuf(*crc32, buf, ret);
-        if (!write_all(outfd, buf, ret))
-            return COPY_FILE_WRITE_ERROR;
-        if (notify_progress_func != NULL)
-            notify_progress_func(ret, 0);
-        written += ret;
-    }
-    return COPY_FILE_OK;
+	char buf[4096];
+	long long written = 0;
+	int ret;
+	int count;
+	while (written < size) {
+		if (size - written > (int)sizeof(buf))
+			count = sizeof buf;
+		else
+			count = size - written;
+		ret = read(infd, buf, count);
+		if (!ret)
+			return COPY_FILE_READ_EOF;
+		if (ret < 0)
+			return COPY_FILE_READ_ERROR;
+		/* acumulate crc32 if requested */
+		if (crc32)
+			*crc32 = Crc32_ComputeBuf(*crc32, buf, ret);
+		if (!write_all(outfd, buf, ret))
+			return COPY_FILE_WRITE_ERROR;
+		if (notify_progress_func != NULL)
+			notify_progress_func(ret, 0);
+		written += ret;
+	}
+	return COPY_FILE_OK;
 }
 
 const char * copy_file_status_to_str(int status)
 {
-    switch (status) {
-        case COPY_FILE_OK: return "OK";
-        case COPY_FILE_READ_EOF: return "Unexpected end of data while reading";
-        case COPY_FILE_READ_ERROR: return "Error reading";
-        case COPY_FILE_WRITE_ERROR: return "Error writing";
-        default: return "????????";
-    }
+	switch (status) {
+		case COPY_FILE_OK: return "OK";
+		case COPY_FILE_READ_EOF: return "Unexpected end of data while reading";
+		case COPY_FILE_READ_ERROR: return "Error reading";
+		case COPY_FILE_WRITE_ERROR: return "Error writing";
+		default: return "????????";
+	}
 } 

qrexec-lib/exec.c

@@ -0,0 +1,79 @@
+/*
+ * The Qubes OS Project, http://www.qubes-os.org
+ *
+ * Copyright (C) 2010  Rafal Wojtczuk  <rafal@invisiblethingslab.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include "libqrexec-utils.h"
+
+static do_exec_t *exec_func = NULL;
+void register_exec_func(do_exec_t *func) {
+	exec_func = func;
+}
+
+void fix_fds(int fdin, int fdout, int fderr)
+{
+	int i;
+	for (i = 0; i < 256; i++)
+		if (i != fdin && i != fdout && i != fderr)
+			close(i);
+	dup2(fdin, 0);
+	dup2(fdout, 1);
+	dup2(fderr, 2);
+	close(fdin);
+	close(fdout);
+	if (fderr != 2)
+		close(fderr);
+}
+
+void do_fork_exec(const char *cmdline, int *pid, int *stdin_fd, int *stdout_fd,
+		  int *stderr_fd)
+{
+	int inpipe[2], outpipe[2], errpipe[2];
+
+	if (pipe(inpipe) || pipe(outpipe) || (stderr_fd && pipe(errpipe))) {
+		perror("pipe");
+		exit(1);
+	}
+	switch (*pid = fork()) {
+	case -1:
+		perror("fork");
+		exit(-1);
+	case 0:
+		if (stderr_fd) {
+			fix_fds(inpipe[0], outpipe[1], errpipe[1]);
+		} else
+			fix_fds(inpipe[0], outpipe[1], 2);
+
+		if (exec_func != NULL)
+			exec_func(cmdline);
+		exit(-1);
+	default:;
+	}
+	close(inpipe[0]);
+	close(outpipe[1]);
+	*stdin_fd = inpipe[1];
+	*stdout_fd = outpipe[0];
+	if (stderr_fd) {
+		close(errpipe[1]);
+		*stderr_fd = errpipe[0];
+	}
+}

qrexec-lib/ioall.c

@@ -27,90 +27,90 @@
 
 void perror_wrapper(const char * msg)
 {
-    int prev=errno;
-    perror(msg);
-    errno=prev;
+	int prev=errno;
+	perror(msg);
+	errno=prev;
 }
 
 void set_nonblock(int fd)
 {
-    int fl = fcntl(fd, F_GETFL, 0);
-    if (fl & O_NONBLOCK)
-        return;
-    fcntl(fd, F_SETFL, fl | O_NONBLOCK);
+	int fl = fcntl(fd, F_GETFL, 0);
+	if (fl & O_NONBLOCK)
+		return;
+	fcntl(fd, F_SETFL, fl | O_NONBLOCK);
 }
 
 void set_block(int fd)
 {
-    int fl = fcntl(fd, F_GETFL, 0);
-    if (!(fl & O_NONBLOCK))
-        return;
-    fcntl(fd, F_SETFL, fl & ~O_NONBLOCK);
+	int fl = fcntl(fd, F_GETFL, 0);
+	if (!(fl & O_NONBLOCK))
+		return;
+	fcntl(fd, F_SETFL, fl & ~O_NONBLOCK);
 }
 
 int write_all(int fd, const void *buf, int size)
 {
-    int written = 0;
-    int ret;
-    while (written < size) {
-        ret = write(fd, (char *) buf + written, size - written);
-        if (ret == -1 && errno == EINTR)
-            continue;
-        if (ret <= 0) {
-            return 0;
-        }
-        written += ret;
-    }
-    //      fprintf(stderr, "sent %d bytes\n", size);
-    return 1;
+	int written = 0;
+	int ret;
+	while (written < size) {
+		ret = write(fd, (char *) buf + written, size - written);
+		if (ret == -1 && errno == EINTR)
+			continue;
+		if (ret <= 0) {
+			return 0;
+		}
+		written += ret;
+	}
+//      fprintf(stderr, "sent %d bytes\n", size);
+	return 1;
 }
 
 int read_all(int fd, void *buf, int size)
 {
-    int got_read = 0;
-    int ret;
-    while (got_read < size) {
-        ret = read(fd, (char *) buf + got_read, size - got_read);
-        if (ret == -1 && errno == EINTR)
-            continue;
-        if (ret == 0) {
-            errno = 0;
-            fprintf(stderr, "EOF\n");
-            return 0;
-        }
-        if (ret < 0) {
-            if (errno != EAGAIN)
-                perror_wrapper("read");
-            return 0;
-        }
-        if (got_read == 0) {
-            // force blocking operation on further reads
-            set_block(fd);
-        }
-        got_read += ret;
-    }
-    //      fprintf(stderr, "read %d bytes\n", size);
-    return 1;
+	int got_read = 0;
+	int ret;
+	while (got_read < size) {
+		ret = read(fd, (char *) buf + got_read, size - got_read);
+		if (ret == -1 && errno == EINTR)
+			continue;
+		if (ret == 0) {
+			errno = 0;
+			fprintf(stderr, "EOF\n");
+			return 0;
+		}
+		if (ret < 0) {
+			if (errno != EAGAIN)
+				perror_wrapper("read");
+			return 0;
+		}
+		if (got_read == 0) {
+			// force blocking operation on further reads
+			set_block(fd);
+		}
+		got_read += ret;
+	}
+//      fprintf(stderr, "read %d bytes\n", size);
+	return 1;
 }
 
 int copy_fd_all(int fdout, int fdin)
 {
-    int ret;
-    char buf[4096];
-    for (;;) {
-        ret = read(fdin, buf, sizeof(buf));
-        if (ret == -1 && errno == EINTR)
-            continue;
-        if (!ret)
-            break;
-        if (ret < 0) {
-            perror_wrapper("read");
-            return 0;
-        }
-        if (!write_all(fdout, buf, ret)) {
-            perror_wrapper("write");
-            return 0;
-        }
-    }
-    return 1;
+	int ret;
+	char buf[4096];
+	for (;;) {
+		ret = read(fdin, buf, sizeof(buf));
+		if (ret == -1 && errno == EINTR)
+			continue;
+		if (!ret)
+			break;
+		if (ret < 0) {
+			perror_wrapper("read");
+			return 0;
+		}
+		if (!write_all(fdout, buf, ret)) {
+			perror_wrapper("write");
+			return 0;
+		}
+	}
+	return 1;
 }

qrexec-lib/libqrexec-utils.h

@@ -0,0 +1,69 @@
+/*
+ * The Qubes OS Project, http://www.qubes-os.org
+ *
+ * Copyright (C) 2010  Rafal Wojtczuk  <rafal@invisiblethingslab.com>
+ * Copyright (C) 2013  Marek Marczykowski  <marmarek@invisiblethingslab.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ */
+
+#include <sys/select.h>
+
+struct buffer {
+	char *data;
+	int buflen;
+};
+
+typedef void (do_exec_t)(const char *);
+void register_exec_func(do_exec_t *func);
+
+void buffer_init(struct buffer *b);
+void buffer_free(struct buffer *b);
+void buffer_append(struct buffer *b, const char *data, int len);
+void buffer_remove(struct buffer *b, int len);
+int buffer_len(struct buffer *b);
+void *buffer_data(struct buffer *b);
+
+
+void do_fork_exec(const char *cmdline, int *pid, int *stdin_fd, int *stdout_fd,
+		  int *stderr_fd);
+int peer_server_init(int port);
+char *peer_client_init(int dom, int port);
+void wait_for_vchan_or_argfd(int max, fd_set * rdset, fd_set * wrset);
+unsigned int read_ready_vchan_ext(void);
+int read_all(int fd, void *buf, int size);
+int read_all_vchan_ext(void *buf, int size);
+int write_all(int fd, const void *buf, int size);
+int write_all_vchan_ext(const void *buf, int size);
+unsigned int buffer_space_vchan_ext(void);
+void fix_fds(int fdin, int fdout, int fderr);
+void set_nonblock(int fd);
+void set_block(int fd);
+
+int get_server_socket(const char *);
+int do_accept(int s);
+
+enum {
+	WRITE_STDIN_OK = 0x200,
+	WRITE_STDIN_BUFFERED,
+	WRITE_STDIN_ERROR
+};
+
+int flush_client_data(int fd, int client_id, struct buffer *buffer);
+int write_stdin(int fd, int client_id, const char *data, int len,
+		struct buffer *buffer);
+void set_nonblock(int fd);
+int fork_and_flush_stdin(int fd, struct buffer *buffer);

qrexec-lib/libqubes-rpc-filecopy.h

@@ -30,46 +30,38 @@
 #define LEGAL_EOF 31415926
 
 #include <stdint.h>
-#include <stdarg.h>
-#include <sys/stat.h>
-#include <sys/types.h>
 
 struct file_header {
-    uint32_t namelen;
-    uint32_t mode;
-    uint64_t filelen;
-    uint32_t atime;
-    uint32_t atime_nsec;
-    uint32_t mtime;
-    uint32_t mtime_nsec;
+	unsigned int namelen;
+	unsigned int mode;
+	unsigned long long filelen;
+	unsigned int atime;
+	unsigned int atime_nsec;
+	unsigned int mtime;
+	unsigned int mtime_nsec;
 };
 
 struct result_header {
-    uint32_t error_code;
-    uint32_t _pad;
-    uint64_t crc32;
+	uint32_t error_code;
+	uint32_t _pad;
+	uint64_t crc32;
 } __attribute__((packed));
 
 /* optional info about last processed file */
 struct result_header_ext {
-    uint32_t last_namelen;
-    char last_name[0];
+	uint32_t last_namelen;
+	char last_name[0];
 } __attribute__((packed));
 
 enum {
-    COPY_FILE_OK,
-    COPY_FILE_READ_EOF,
-    COPY_FILE_READ_ERROR,
-    COPY_FILE_WRITE_ERROR
+	COPY_FILE_OK,
+	COPY_FILE_READ_EOF,
+	COPY_FILE_READ_ERROR,
+	COPY_FILE_WRITE_ERROR
 };
 
-/* feedback handling */
 typedef void (notify_progress_t)(int, int);
-typedef void (error_handler_t)(const char *fmt, va_list args);
 void register_notify_progress(notify_progress_t *func);
-void register_error_handler(error_handler_t *func);
-
-/* common functions */
 int copy_file(int outfd, int infd, long long size, unsigned long *crc32);
 const char *copy_file_status_to_str(int status);
 void set_size_limit(unsigned long long new_bytes_limit, unsigned long long new_files_limit);
@@ -82,22 +74,9 @@ int copy_fd_all(int fdout, int fdin);
 void set_nonblock(int fd);
 void set_block(int fd);
 
-/* unpacking */
 extern unsigned long Crc32_ComputeBuf( unsigned long inCrc32, const void *buf,
         size_t bufLen );
+
 extern int do_unpack(void);
 
-/* packing */
-int single_file_processor(const char *filename, const struct stat *st);
-int do_fs_walk(const char *file, int ignore_symlinks);
-/* used in tar2qfile to alter only headers, but keep original file stream */
-void write_headers(const struct file_header *hdr, const char *filename);
-int copy_file_with_crc(int outfd, int infd, long long size);
-/* MUST be called before first do_fs_walk/single_file_processor */
-void qfile_pack_init(void);
-void set_ignore_quota_error(int value);
-/* those two will call registered error handler if needed */
-void wait_for_result(void);
-void notify_end_and_wait_for_result(void);
-
 #endif /* _LIBQUBES_RPC_FILECOPY_H */

qrexec-lib/pack.c

@@ -1,229 +0,0 @@
-#define _GNU_SOURCE         /* See feature_test_macros(7) */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <dirent.h>
-#include <sys/types.h>
-#include "libqubes-rpc-filecopy.h"
-
-static unsigned long crc32_sum;
-static int ignore_quota_error = 0;
-error_handler_t *error_handler = NULL;
-
-void register_error_handler(error_handler_t *value) {
-    error_handler = value;
-}
-
-_Noreturn static void call_error_handler(const char *fmt, ...)
-{
-    va_list args;
-    va_start(args, fmt);
-    if (error_handler) {
-        error_handler(fmt, args);
-    } else {
-        vfprintf(stderr, fmt, args);
-    }
-    va_end(args);
-    exit(1);
-}
-
-static int write_all_with_crc(int fd, const void *buf, int size)
-{
-    crc32_sum = Crc32_ComputeBuf(crc32_sum, buf, size);
-    return write_all(fd, buf, size);
-}
-
-void notify_end_and_wait_for_result(void)
-{
-    struct file_header end_hdr;
-
-    /* nofity end of transfer */
-    memset(&end_hdr, 0, sizeof(end_hdr));
-    end_hdr.namelen = 0;
-    end_hdr.filelen = 0;
-    write_all_with_crc(1, &end_hdr, sizeof(end_hdr));
-
-    set_block(0);
-    wait_for_result();
-}
-
-void wait_for_result(void)
-{
-    struct result_header hdr;
-    struct result_header_ext hdr_ext;
-    char last_filename[MAX_PATH_LENGTH + 1];
-    char last_filename_prefix[] = "; Last file: ";
-
-    if (!read_all(0, &hdr, sizeof(hdr))) {
-        if (errno == EAGAIN) {
-            // no result sent and stdin still open
-            return;
-        } else {
-            // other read error or EOF
-            exit(1);  // hopefully remote has produced error message
-        }
-    }
-    if (!read_all(0, &hdr_ext, sizeof(hdr_ext))) {
-        // remote used old result_header struct
-        hdr_ext.last_namelen = 0;
-    }
-    if (hdr_ext.last_namelen > MAX_PATH_LENGTH) {
-        // read only at most MAX_PATH_LENGTH chars
-        hdr_ext.last_namelen = MAX_PATH_LENGTH;
-    }
-    if (!read_all(0, last_filename, hdr_ext.last_namelen)) {
-        fprintf(stderr, "Failed to get last filename\n");
-        hdr_ext.last_namelen = 0;
-    }
-    last_filename[hdr_ext.last_namelen] = '\0';
-    if (!hdr_ext.last_namelen)
-        /* set prefix to empty string */
-        last_filename_prefix[0] = '\0';
-
-    errno = hdr.error_code;
-    if (hdr.error_code != 0) {
-        switch (hdr.error_code) {
-            case EEXIST:
-                call_error_handler("A file named %s already exists in QubesIncoming dir", last_filename);
-                break;
-            case EINVAL:
-                call_error_handler("File copy: Corrupted data from packer%s%s", last_filename_prefix, last_filename);
-                break;
-            case EDQUOT:
-                if (ignore_quota_error) {
-                    /* skip also CRC check as sender and receiver might be
-                     * desynchronized in this case */
-                    return;
-                }
-		/* fallthrough */
-            default:
-                call_error_handler("File copy: %s%s%s",
-                        strerror(hdr.error_code), last_filename_prefix, last_filename);
-        }
-    }
-    if (hdr.crc32 != crc32_sum) {
-        call_error_handler("File transfer failed: checksum mismatch");
-    }
-}
-
-void write_headers(const struct file_header *hdr, const char *filename)
-{
-    if (!write_all_with_crc(1, hdr, sizeof(*hdr))
-            || !write_all_with_crc(1, filename, hdr->namelen)) {
-        set_block(0);
-        wait_for_result();
-        exit(1);
-    }
-}
-
-int copy_file_with_crc(int outfd, int infd, long long size) {
-    return copy_file(outfd, infd, size, &crc32_sum);
-}
-
-int single_file_processor(const char *filename, const struct stat *st)
-{
-    struct file_header hdr;
-    int fd;
-    mode_t mode = st->st_mode;
-
-    hdr.namelen = strlen(filename) + 1;
-    hdr.mode = mode;
-    hdr.atime = st->st_atim.tv_sec;
-    hdr.atime_nsec = st->st_atim.tv_nsec;
-    hdr.mtime = st->st_mtim.tv_sec;
-    hdr.mtime_nsec = st->st_mtim.tv_nsec;
-
-    if (S_ISREG(mode)) {
-        int ret;
-        fd = open(filename, O_RDONLY);
-        if (fd < 0)
-            call_error_handler("open %s", filename);
-        hdr.filelen = st->st_size;
-        write_headers(&hdr, filename);
-        ret = copy_file(1, fd, hdr.filelen, &crc32_sum);
-        if (ret != COPY_FILE_OK) {
-            if (ret != COPY_FILE_WRITE_ERROR)
-                call_error_handler("Copying file %s: %s", filename,
-                        copy_file_status_to_str(ret));
-            else {
-                set_block(0);
-                wait_for_result();
-                exit(1);
-            }
-        }
-        close(fd);
-    }
-    if (S_ISDIR(mode)) {
-        hdr.filelen = 0;
-        write_headers(&hdr, filename);
-    }
-    if (S_ISLNK(mode)) {
-        char name[st->st_size + 1];
-        if (readlink(filename, name, sizeof(name)) != st->st_size)
-            call_error_handler("readlink %s", filename);
-        hdr.filelen = st->st_size;
-        write_headers(&hdr, filename);
-        if (!write_all_with_crc(1, name, st->st_size)) {
-            set_block(0);
-            wait_for_result();
-            exit(1);
-        }
-    }
-    // check for possible error from qfile-unpacker
-    wait_for_result();
-    return 0;
-}
-
-int do_fs_walk(const char *file, int ignore_symlinks)
-{
-    char *newfile;
-    struct stat st;
-    struct dirent *ent;
-    DIR *dir;
-
-    if (lstat(file, &st))
-        call_error_handler("stat %s", file);
-    if (S_ISLNK(st.st_mode) && ignore_symlinks)
-        return 0;
-    single_file_processor(file, &st);
-    if (!S_ISDIR(st.st_mode))
-        return 0;
-    dir = opendir(file);
-    if (!dir)
-        call_error_handler("opendir %s", file);
-    while ((ent = readdir(dir))) {
-        char *fname = ent->d_name;
-        if (!strcmp(fname, ".") || !strcmp(fname, ".."))
-            continue;
-        if (asprintf(&newfile, "%s/%s", file, fname) >= 0) {
-            do_fs_walk(newfile, ignore_symlinks);
-            free(newfile);
-        } else {
-            fprintf(stderr, "asprintf failed\n");
-            exit(1);
-        }
-    }
-    closedir(dir);
-    // directory metadata is resent; this makes the code simple,
-    // and the atime/mtime is set correctly at the second time
-    single_file_processor(file, &st);
-    return 0;
-}
-
-void qfile_pack_init(void) {
-    crc32_sum = 0;
-    ignore_quota_error = 0;
-    // this will allow checking for possible feedback packet in the middle of transfer
-    set_nonblock(0);
-    signal(SIGPIPE, SIG_IGN);
-    error_handler = NULL;
-}
-
-void set_ignore_quota_error(int value) {
-    ignore_quota_error = value;
-}

qrexec-lib/qrexec.h

@@ -0,0 +1,106 @@
+/*
+ * The Qubes OS Project, http://www.qubes-os.org
+ *
+ * Copyright (C) 2010  Rafal Wojtczuk  <rafal@invisiblethingslab.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ */
+
+/* See also http://wiki.qubes-os.org/trac/wiki/Qrexec */
+
+#define QREXEC_DAEMON_SOCKET_DIR "/var/run/qubes"
+#define MAX_FDS 256
+#define MAX_DATA_CHUNK 4096
+
+#define REXEC_PORT 512
+
+#define QREXEC_AGENT_TRIGGER_PATH "/var/run/qubes/qrexec-agent"
+#define QREXEC_AGENT_FDPASS_PATH "/var/run/qubes/qrexec-agent-fdpass"
+#define MEMINFO_WRITER_PIDFILE "/var/run/meminfo-writer.pid"
+#define QUBES_RPC_MULTIPLEXER_PATH "/usr/lib/qubes/qubes-rpc-multiplexer"
+
+#define QUBES_RPC_MAGIC_CMD "QUBESRPC"
+
+enum {
+	/* messages from qrexec_client to qrexec_daemon (both in dom0) */
+	/* start process in VM and pass its stdin/out/err to dom0 */
+	MSG_CLIENT_TO_SERVER_EXEC_CMDLINE = 0x100,
+	/* start process in VM discarding its stdin/out/err (connect to /dev/null) */
+	MSG_CLIENT_TO_SERVER_JUST_EXEC,
+	/* connect to existing process in VM to receive its stdin/out/err 
+	 * struct connect_existing_params passed as data */
+	MSG_CLIENT_TO_SERVER_CONNECT_EXISTING,
+
+	/* messages qrexec_daemon(dom0)->qrexec_agent(VM) */
+	/* same as MSG_CLIENT_TO_SERVER_CONNECT_EXISTING */
+	MSG_SERVER_TO_AGENT_CONNECT_EXISTING,
+	/* same as MSG_CLIENT_TO_SERVER_EXEC_CMDLINE */
+	MSG_SERVER_TO_AGENT_EXEC_CMDLINE,
+	/* same as MSG_CLIENT_TO_SERVER_JUST_EXEC */
+	MSG_SERVER_TO_AGENT_JUST_EXEC,
+	/* pass data to process stdin */
+	MSG_SERVER_TO_AGENT_INPUT,
+	/* detach from process; qrexec_agent should close pipes to process
+	 * stdin/out/err; it's up to the VM child process if it cause its termination */
+	MSG_SERVER_TO_AGENT_CLIENT_END,
+
+	/* flow control, qrexec_daemon->qrexec_agent */
+	/* suspend reading of named fd from child process */
+	MSG_XOFF,
+	/* resume reading of named fd from child process */
+	MSG_XON,
+
+	/* messages qrexec_agent(VM)->qrexec_daemon(dom0) */
+	/* pass data from process stdout */
+	MSG_AGENT_TO_SERVER_STDOUT,
+	/* pass data from process stderr */
+	MSG_AGENT_TO_SERVER_STDERR,
+	/* inform that process terminated and pass its exit code; this should be
+	 * send after all data from stdout/err are send */
+	MSG_AGENT_TO_SERVER_EXIT_CODE,
+	/* call Qubes RPC service
+	 * struct trigger_connect_params passed as data */
+	MSG_AGENT_TO_SERVER_TRIGGER_CONNECT_EXISTING,
+
+	/* messages qrexec_daemon->qrexec_client (both in dom0) */
+	/* same as MSG_AGENT_TO_SERVER_STDOUT */
+	MSG_SERVER_TO_CLIENT_STDOUT,
+	/* same as MSG_AGENT_TO_SERVER_STDERR */
+	MSG_SERVER_TO_CLIENT_STDERR,
+	/* same as MSG_AGENT_TO_SERVER_EXIT_CODE */
+	MSG_SERVER_TO_CLIENT_EXIT_CODE
+};
+
+struct server_header {
+	unsigned int type;
+	unsigned int client_id;
+	unsigned int len;
+};
+
+struct client_header {
+	unsigned int type;
+	unsigned int len;
+};
+
+struct connect_existing_params {
+	char ident[32];
+};
+
+struct trigger_connect_params {
+	char exec_index[64];
+	char target_vmname[32];
+	struct connect_existing_params process_fds;
+};

qrexec-lib/txrx-vchan.c

@@ -0,0 +1,247 @@
+/*
+ * The Qubes OS Project, http://www.qubes-os.org
+ *
+ * Copyright (C) 2010  Rafal Wojtczuk  <rafal@invisiblethingslab.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <libvchan.h>
+#ifdef USE_XENSTORE_H
+#include <xenstore.h>
+#else
+#include <xs.h>
+#endif
+#include <xenctrl.h>
+
+static struct libvchan *ctrl;
+static int is_server;
+int write_all_vchan_ext(const void *buf, int size)
+{
+	int written = 0;
+	int ret;
+
+	while (written < size) {
+		ret =
+		    libvchan_write(ctrl, (const char *) buf + written,
+				   size - written);
+		if (ret <= 0) {
+			perror("write");
+			exit(1);
+		}
+		written += ret;
+	}
+//      fprintf(stderr, "sent %d bytes\n", size);
+	return size;
+}
+
+
+int read_all_vchan_ext(void *buf, int size)
+{
+	int written = 0;
+	int ret;
+	while (written < size) {
+		ret =
+		    libvchan_read(ctrl, (char *) buf + written,
+				  size - written);
+		if (ret == 0) {
+			fprintf(stderr, "EOF\n");
+			exit(1);
+		}
+		if (ret < 0) {
+			perror("read");
+			exit(1);
+		}
+		written += ret;
+	}
+//      fprintf(stderr, "read %d bytes\n", size);
+	return size;
+}
+
+unsigned int read_ready_vchan_ext()
+{
+	int ready = libvchan_data_ready(ctrl);
+	if (ready < 0) {
+		fprintf(stderr, "libvchan_data_ready returned invalid size\n");
+		exit(1);
+	}
+	return ready;
+}
+
+unsigned int buffer_space_vchan_ext()
+{
+	int space = libvchan_buffer_space(ctrl);
+	if (space < 0) {
+		fprintf(stderr, "libvchan_buffer_space returned invalid size\n");
+		exit(1);
+	}
+	return space;
+}
+
+// if the remote domain is destroyed, we get no notification
+// thus, we check for the status periodically
+
+#ifdef XENCTRL_HAS_XC_INTERFACE
+static xc_interface *xc_handle = NULL;
+#else
+static int xc_handle = -1;
+#endif
+void slow_check_for_libvchan_is_eof(struct libvchan *ctrl)
+{
+	struct evtchn_status evst;
+	evst.port = ctrl->evport;
+	evst.dom = DOMID_SELF;
+	if (xc_evtchn_status(xc_handle, &evst)) {
+		perror("xc_evtchn_status");
+		exit(1);
+	}
+	if (evst.status != EVTCHNSTAT_interdomain) {
+		fprintf(stderr, "event channel disconnected\n");
+		exit(0);
+	}
+}
+
+
+int wait_for_vchan_or_argfd_once(int max, fd_set * rdset, fd_set * wrset)
+{
+	int vfd, ret;
+	struct timespec tv = { 1, 100000000 };
+	sigset_t empty_set;
+
+	sigemptyset(&empty_set);
+
+	vfd = libvchan_fd_for_select(ctrl);
+	FD_SET(vfd, rdset);
+	if (vfd > max)
+		max = vfd;
+	max++;
+	ret = pselect(max, rdset, wrset, NULL, &tv, &empty_set);
+	if (ret < 0) {
+		if (errno != EINTR) {
+			perror("select");
+			exit(1);
+		} else {
+			FD_ZERO(rdset);
+			FD_ZERO(wrset);
+			fprintf(stderr, "eintr\n");
+			return 1;
+		}
+
+	}
+	if (libvchan_is_eof(ctrl)) {
+		fprintf(stderr, "libvchan_is_eof\n");
+		exit(0);
+	}
+	if (!is_server && ret == 0)
+		slow_check_for_libvchan_is_eof(ctrl);
+	if (FD_ISSET(vfd, rdset))
+		// the following will never block; we need to do this to
+		// clear libvchan_fd pending state 
+		libvchan_wait(ctrl);
+	return ret;
+}
+
+void wait_for_vchan_or_argfd(int max, fd_set * rdset, fd_set * wrset)
+{
+	fd_set r = *rdset, w = *wrset;
+	do {
+		*rdset = r;
+		*wrset = w;
+	}
+	while (wait_for_vchan_or_argfd_once(max, rdset, wrset) == 0);
+}
+
+int peer_server_init(int port)
+{
+	is_server = 1;
+	ctrl = libvchan_server_init(port);
+	if (!ctrl) {
+		perror("libvchan_server_init");
+		exit(1);
+	}
+	return 0;
+}
+
+char *peer_client_init(int dom, int port)
+{
+	struct xs_handle *xs;
+	char buf[64];
+	char *name;
+	char *dummy, *dummy2;
+	unsigned int len = 0;
+	char devbuf[128];
+	char dombuf[128];
+	unsigned int count;
+	char **vec;
+
+//      double_buffered = 1; // writes to vchan are buffered, nonblocking
+//      double_buffer_init();
+	xs = xs_daemon_open();
+	if (!xs) {
+		perror("xs_daemon_open");
+		exit(1);
+	}
+	snprintf(buf, sizeof(buf), "/local/domain/%d/name", dom);
+	name = xs_read(xs, 0, buf, &len);
+	if (!name) {
+		perror("xs_read domainname");
+		exit(1);
+	}
+	snprintf(devbuf, sizeof(devbuf),
+		 "/local/domain/%d/device/vchan/%d/event-channel", dom,
+		 port);
+	snprintf(dombuf, sizeof(dombuf), "/local/domain/%d", dom);
+	xs_watch(xs, devbuf, devbuf);
+	do {
+		vec = xs_read_watch(xs, &count);
+		if (vec)
+			free(vec);
+		len = 0;
+		dummy = xs_read(xs, 0, devbuf, &len);
+		if (dummy)
+			free(dummy);
+		else {
+			/* check if domain still alive */
+			dummy2 = xs_read(xs, 0, dombuf, &len);
+			if (!dummy2) {
+				fprintf(stderr, "domain dead\n");
+				exit(1);
+			}
+			free(dummy2);
+		}
+	}
+	while (!dummy || !len);	// wait for the server to create xenstore entries
+	xs_daemon_close(xs);
+
+	// now client init should succeed; "while" is redundant
+	while (!(ctrl = libvchan_client_init(dom, port)));
+
+#ifdef XENCTRL_HAS_XC_INTERFACE
+	xc_handle = xc_interface_open(NULL, 0, 0);
+	if (!xc_handle) {
+#else
+	xc_handle = xc_interface_open();
+	if (xc_handle < 0) {
+#endif
+		perror("xc_interface_open");
+		exit(1);
+	}
+	return name;
+}

qrexec-lib/unix-server.c

@@ -0,0 +1,73 @@
+/*
+ * The Qubes OS Project, http://www.qubes-os.org
+ *
+ * Copyright (C) 2010  Rafal Wojtczuk  <rafal@invisiblethingslab.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ */
+
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdlib.h>
+//#include "qrexec.h"
+
+int get_server_socket(const char *socket_address)
+{
+	struct sockaddr_un sockname;
+	int s;
+
+	unlink(socket_address);
+
+	s = socket(AF_UNIX, SOCK_STREAM, 0);
+	if (s < 0) {
+		printf("socket() failed\n");
+		exit(1);
+	}
+	memset(&sockname, 0, sizeof(sockname));
+	sockname.sun_family = AF_UNIX;
+	strncpy(sockname.sun_path, socket_address, sizeof sockname.sun_path);
+	sockname.sun_path[sizeof sockname.sun_path - 1] = 0;
+
+	if (bind(s, (struct sockaddr *) &sockname, sizeof(sockname)) == -1) {
+		printf("bind() failed\n");
+		close(s);
+		exit(1);
+	}
+//      chmod(sockname.sun_path, 0666);
+	if (listen(s, 5) == -1) {
+		perror("listen() failed\n");
+		close(s);
+		exit(1);
+	}
+	return s;
+}
+
+int do_accept(int s)
+{
+	struct sockaddr_un peer;
+	unsigned int addrlen;
+	int fd;
+	addrlen = sizeof(peer);
+	fd = accept(s, (struct sockaddr *) &peer, &addrlen);
+	if (fd == -1) {
+		perror("unix accept");
+		exit(1);
+	}
+	return fd;
+}

qrexec-lib/unpack.c

@@ -1,5 +1,6 @@
 #define _GNU_SOURCE /* For O_NOFOLLOW. */
 #include <errno.h>
+#include <ioall.h>
 #include <fcntl.h>
 #include <sys/time.h>
 #include <sys/stat.h>
@@ -9,7 +10,6 @@
 #include <stdio.h>
 #include <limits.h>
 #include "libqubes-rpc-filecopy.h"
-#include "ioall.h"
 #include "crc32.h"
 
 char untrusted_namebuf[MAX_PATH_LENGTH];
@@ -35,203 +35,194 @@ void send_status_and_crc(int code, const char *last_filename);
 
 void do_exit(int code, const char *last_filename)
 {
-    close(0);
-    send_status_and_crc(code, last_filename);
-    exit(code);
+	close(0);
+	send_status_and_crc(code, last_filename);
+	exit(code);
 }
 
 void set_size_limit(unsigned long long new_bytes_limit, unsigned long long new_files_limit)
 {
-    bytes_limit = new_bytes_limit;
-    files_limit = new_files_limit;
+	bytes_limit = new_bytes_limit;
+	files_limit = new_files_limit;
 }
 
 void set_verbose(int value)
 {
-    verbose = value;
+	verbose = value;
 }
 
 void set_procfs_fd(int value)
 {
-    procdir_fd = value;
-    use_tmpfile = 1;
+	procdir_fd = value;
+	use_tmpfile = 1;
 }
 
 unsigned long crc32_sum = 0;
 int read_all_with_crc(int fd, void *buf, int size) {
-    int ret;
-    ret = read_all(fd, buf, size);
-    if (ret)
-        crc32_sum = Crc32_ComputeBuf(crc32_sum, buf, size);
-    return ret;
+	int ret;
+	ret = read_all(fd, buf, size);
+	if (ret)
+		crc32_sum = Crc32_ComputeBuf(crc32_sum, buf, size);
+	return ret;
 }
 
 void send_status_and_crc(int code, const char *last_filename) {
-    struct result_header hdr;
-    struct result_header_ext hdr_ext;
-    int saved_errno;
+	struct result_header hdr;
+	struct result_header_ext hdr_ext;
+	int saved_errno;
 
-    saved_errno = errno;
-    hdr.error_code = code;
-    hdr._pad = 0;
-    hdr.crc32 = crc32_sum;
-    if (!write_all(1, &hdr, sizeof(hdr)))
-        perror("write status");
-    if (last_filename) {
-        hdr_ext.last_namelen = strlen(last_filename);
-        if (!write_all(1, &hdr_ext, sizeof(hdr_ext)))
-            perror("write status ext");
-        if (!write_all(1, last_filename, hdr_ext.last_namelen))
-            perror("write last_filename");
-    }
-    errno = saved_errno;
+	saved_errno = errno;
+	hdr.error_code = code;
+	hdr.crc32 = crc32_sum;
+	if (!write_all(1, &hdr, sizeof(hdr)))
+		perror("write status");
+	if (last_filename) {
+		hdr_ext.last_namelen = strlen(last_filename);
+		if (!write_all(1, &hdr_ext, sizeof(hdr_ext)))
+			perror("write status ext");
+		if (!write_all(1, last_filename, hdr_ext.last_namelen))
+			perror("write last_filename");
+	}
+	errno = saved_errno;
 }
 
 void fix_times_and_perms(struct file_header *untrusted_hdr,
-        const char *untrusted_name)
+			 const char *untrusted_name)
 {
-    struct timeval times[2] =
-    { 
-        {untrusted_hdr->atime, untrusted_hdr->atime_nsec / 1000},
-        {untrusted_hdr->mtime, untrusted_hdr->mtime_nsec / 1000}
-    };
-    if (chmod(untrusted_name, untrusted_hdr->mode & 07777))  /* safe because of chroot */
-        do_exit(errno, untrusted_name);
-    if (utimes(untrusted_name, times))  /* as above */
-        do_exit(errno, untrusted_name);
+	struct timeval times[2] =
+	    { {untrusted_hdr->atime, untrusted_hdr->atime_nsec / 1000},
+	    {untrusted_hdr->mtime,
+	     untrusted_hdr->mtime_nsec / 1000}
+	};
+	if (chmod(untrusted_name, untrusted_hdr->mode & 07777))	/* safe because of chroot */
+		do_exit(errno, untrusted_name);
+	if (utimes(untrusted_name, times))	/* as above */
+		do_exit(errno, untrusted_name);
 }
 
 
 
 void process_one_file_reg(struct file_header *untrusted_hdr,
-        const char *untrusted_name)
+			  const char *untrusted_name)
 {
-    int ret;
-    int fdout = -1;
+	int ret;
+	int fdout = -1;
 
-    /* make the file inaccessible until fully written */
-    if (use_tmpfile) {
-        fdout = open(".", O_WRONLY | O_TMPFILE, 0700);
-        if (fdout < 0) {
-            if (errno==ENOENT || /* most likely, kernel too old for O_TMPFILE */
-                    errno==EOPNOTSUPP) /* filesystem has no support for O_TMPFILE */
-                use_tmpfile = 0;
-            else
-                do_exit(errno, untrusted_name);
-        }
-    }
-    if (fdout < 0)
-        fdout = open(untrusted_name, O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW, 0000); /* safe because of chroot */
-    if (fdout < 0)
-        do_exit(errno, untrusted_name);
-    /* sizes are signed elsewhere */
-    if (untrusted_hdr->filelen > LLONG_MAX || (bytes_limit && untrusted_hdr->filelen > bytes_limit))
-        do_exit(EDQUOT, untrusted_name);
-    if (bytes_limit && total_bytes > bytes_limit - untrusted_hdr->filelen)
-        do_exit(EDQUOT, untrusted_name);
-    total_bytes += untrusted_hdr->filelen;
-    ret = copy_file(fdout, 0, untrusted_hdr->filelen, &crc32_sum);
-    if (ret != COPY_FILE_OK) {
-        if (ret == COPY_FILE_READ_EOF
-                || ret == COPY_FILE_READ_ERROR)
-            do_exit(LEGAL_EOF, untrusted_name); // hopefully remote will produce error message
-        else
-            do_exit(errno, untrusted_name);
-    }
-    if (use_tmpfile) {
-        char fd_str[7];
-        snprintf(fd_str, sizeof(fd_str), "%d", fdout);
-        if (linkat(procdir_fd, fd_str, AT_FDCWD, untrusted_name, AT_SYMLINK_FOLLOW) < 0)
-            do_exit(errno, untrusted_name);
-    }
-    close(fdout);
-    fix_times_and_perms(untrusted_hdr, untrusted_name);
+	/* make the file inaccessible until fully written */
+	if (use_tmpfile) {
+		fdout = open(".", O_WRONLY | O_TMPFILE, 0700);
+		if (fdout < 0) {
+		   if (errno==ENOENT)
+			   /* if it fails, do not attempt further use - most likely kernel too old */
+			   use_tmpfile = 0;
+		   else
+			   do_exit(errno, untrusted_name);
+		}
+	}
+	if (fdout < 0)
+		fdout = open(untrusted_name, O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW, 0000);	/* safe because of chroot */
+	if (fdout < 0)
+		do_exit(errno, untrusted_name);
+	/* sizes are signed elsewhere */
+	if (untrusted_hdr->filelen > LLONG_MAX || (bytes_limit && untrusted_hdr->filelen > bytes_limit))
+		do_exit(EDQUOT, untrusted_name);
+	if (bytes_limit && total_bytes > bytes_limit - untrusted_hdr->filelen)
+		do_exit(EDQUOT, untrusted_name);
+	total_bytes += untrusted_hdr->filelen;
+	ret = copy_file(fdout, 0, untrusted_hdr->filelen, &crc32_sum);
+	if (ret != COPY_FILE_OK) {
+		if (ret == COPY_FILE_READ_EOF
+		    || ret == COPY_FILE_READ_ERROR)
+			do_exit(LEGAL_EOF, untrusted_name);	// hopefully remote will produce error message
+		else
+			do_exit(errno, untrusted_name);
+	}
+	fdatasync(fdout);
+	if (use_tmpfile) {
+		char fd_str[7];
+		snprintf(fd_str, sizeof(fd_str), "%d", fdout);
+		if (linkat(procdir_fd, fd_str, AT_FDCWD, untrusted_name, AT_SYMLINK_FOLLOW) < 0)
+			do_exit(errno, untrusted_name);
+	}
+	close(fdout);
+	fix_times_and_perms(untrusted_hdr, untrusted_name);
 }
 
 
 void process_one_file_dir(struct file_header *untrusted_hdr,
-        const char *untrusted_name)
+			  const char *untrusted_name)
 {
-    // fix perms only when the directory is sent for the second time
-    // it allows to transfer r.x directory contents, as we create it rwx initially
-    struct stat buf;
-    if (!mkdir(untrusted_name, 0700)) /* safe because of chroot */
-        return;
-    if (errno != EEXIST)
-        do_exit(errno, untrusted_name);
-    if (stat(untrusted_name,&buf) < 0)
-        do_exit(errno, untrusted_name);
-    total_bytes += buf.st_size;
-    /* size accumulated after the fact, so don't check limit here */
-    fix_times_and_perms(untrusted_hdr, untrusted_name);
+// fix perms only when the directory is sent for the second time
+// it allows to transfer r.x directory contents, as we create it rwx initially
+	struct stat buf;
+	if (!mkdir(untrusted_name, 0700))	/* safe because of chroot */
+		return;
+	if (errno != EEXIST)
+		do_exit(errno, untrusted_name);
+	if (stat(untrusted_name,&buf) < 0)
+		do_exit(errno, untrusted_name);
+	total_bytes += buf.st_size;
+	/* size accumulated after the fact, so don't check limit here */
+	fix_times_and_perms(untrusted_hdr, untrusted_name);
 }
 
 void process_one_file_link(struct file_header *untrusted_hdr,
-        const char *untrusted_name)
+			   const char *untrusted_name)
 {
-    char untrusted_content[MAX_PATH_LENGTH];
-    unsigned int filelen;
-    if (untrusted_hdr->filelen > MAX_PATH_LENGTH - 1)
-        do_exit(ENAMETOOLONG, untrusted_name);
-    filelen = untrusted_hdr->filelen; /* sanitized above */
-    total_bytes += filelen;
-    if (bytes_limit && total_bytes > bytes_limit)
-        do_exit(EDQUOT, untrusted_name);
-    if (!read_all_with_crc(0, untrusted_content, filelen))
-        do_exit(LEGAL_EOF, untrusted_name); // hopefully remote has produced error message
-    untrusted_content[filelen] = 0;
-    if (symlink(untrusted_content, untrusted_name)) /* safe because of chroot */
-        do_exit(errno, untrusted_name);
+	char untrusted_content[MAX_PATH_LENGTH];
+	unsigned int filelen;
+	if (untrusted_hdr->filelen > MAX_PATH_LENGTH - 1)
+		do_exit(ENAMETOOLONG, untrusted_name);
+	filelen = untrusted_hdr->filelen;	/* sanitized above */
+	total_bytes += filelen;
+	if (bytes_limit && total_bytes > bytes_limit)
+		do_exit(EDQUOT, untrusted_name);
+	if (!read_all_with_crc(0, untrusted_content, filelen))
+		do_exit(LEGAL_EOF, untrusted_name);	// hopefully remote has produced error message
+	untrusted_content[filelen] = 0;
+	if (symlink(untrusted_content, untrusted_name))	/* safe because of chroot */
+		do_exit(errno, untrusted_name);
 
 }
 
 void process_one_file(struct file_header *untrusted_hdr)
 {
-    unsigned int namelen;
-    if (untrusted_hdr->namelen > MAX_PATH_LENGTH - 1)
-        do_exit(ENAMETOOLONG, NULL); /* filename too long so not received at all */
-    namelen = untrusted_hdr->namelen; /* sanitized above */
-    if (!read_all_with_crc(0, untrusted_namebuf, namelen))
-        do_exit(LEGAL_EOF, NULL); // hopefully remote has produced error message
-    untrusted_namebuf[namelen] = 0;
-    if (S_ISREG(untrusted_hdr->mode))
-        process_one_file_reg(untrusted_hdr, untrusted_namebuf);
-    else if (S_ISLNK(untrusted_hdr->mode))
-        process_one_file_link(untrusted_hdr, untrusted_namebuf);
-    else if (S_ISDIR(untrusted_hdr->mode))
-        process_one_file_dir(untrusted_hdr, untrusted_namebuf);
-    else
-        do_exit(EINVAL, untrusted_namebuf);
-    if (verbose && !S_ISDIR(untrusted_hdr->mode))
-        fprintf(stderr, "%s\n", untrusted_namebuf);
+	unsigned int namelen;
+	if (untrusted_hdr->namelen > MAX_PATH_LENGTH - 1)
+		do_exit(ENAMETOOLONG, NULL); /* filename too long so not received at all */
+	namelen = untrusted_hdr->namelen;	/* sanitized above */
+	if (!read_all_with_crc(0, untrusted_namebuf, namelen))
+		do_exit(LEGAL_EOF, NULL);	// hopefully remote has produced error message
+	untrusted_namebuf[namelen] = 0;
+	if (S_ISREG(untrusted_hdr->mode))
+		process_one_file_reg(untrusted_hdr, untrusted_namebuf);
+	else if (S_ISLNK(untrusted_hdr->mode))
+		process_one_file_link(untrusted_hdr, untrusted_namebuf);
+	else if (S_ISDIR(untrusted_hdr->mode))
+		process_one_file_dir(untrusted_hdr, untrusted_namebuf);
+	else
+		do_exit(EINVAL, untrusted_namebuf);
+	if (verbose && !S_ISDIR(untrusted_hdr->mode))
+		fprintf(stderr, "%s\n", untrusted_namebuf);
 }
 
 int do_unpack(void)
 {
-    struct file_header untrusted_hdr;
-    int cwd_fd;
-    int saved_errno;
-
-    total_bytes = total_files = 0;
-    /* initialize checksum */
-    crc32_sum = 0;
-    while (read_all_with_crc(0, &untrusted_hdr, sizeof untrusted_hdr)) {
-        /* check for end of transfer marker */
-        if (untrusted_hdr.namelen == 0) {
-            errno = 0;
-            break;
-        }
-        total_files++;
-        if (files_limit && total_files > files_limit)
-            do_exit(EDQUOT, untrusted_namebuf);
-        process_one_file(&untrusted_hdr);
-    }
-
-    saved_errno = errno;
-    cwd_fd = open(".", O_RDONLY);
-    if (cwd_fd >= 0 && syncfs(cwd_fd) == 0 && close(cwd_fd) == 0)
-        errno = saved_errno;
-
-    send_status_and_crc(errno, untrusted_namebuf);
-    return errno;
+	struct file_header untrusted_hdr;
+	total_bytes = total_files = 0;
+	/* initialize checksum */
+	crc32_sum = 0;
+	while (read_all_with_crc(0, &untrusted_hdr, sizeof untrusted_hdr)) {
+		/* check for end of transfer marker */
+		if (untrusted_hdr.namelen == 0) {
+			errno = 0;
+			break;
+		}
+		total_files++;
+		if (files_limit && total_files > files_limit)
+			do_exit(EDQUOT, untrusted_namebuf);
+		process_one_file(&untrusted_hdr);
+	}
+	send_status_and_crc(errno, untrusted_namebuf);
+	return errno;
 }

qrexec-lib/write-stdin.c

@@ -0,0 +1,135 @@
+/*
+ * The Qubes OS Project, http://www.qubes-os.org
+ *
+ * Copyright (C) 2010  Rafal Wojtczuk  <rafal@invisiblethingslab.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include "qrexec.h"
+#include "libqrexec-utils.h"
+
+/* 
+There is buffered data in "buffer" for client id "client_id", and select()
+reports that "fd" is writable. Write as much as possible to fd, if all sent,
+notify the peer that this client's pipe is no longer full.
+*/
+int flush_client_data(int fd, int client_id, struct buffer *buffer)
+{
+	int ret;
+	int len;
+	for (;;) {
+		len = buffer_len(buffer);
+		if (len > MAX_DATA_CHUNK)
+			len = MAX_DATA_CHUNK;
+		ret = write(fd, buffer_data(buffer), len);
+		if (ret == -1) {
+			if (errno != EAGAIN) {
+				return WRITE_STDIN_ERROR;
+			} else
+				return WRITE_STDIN_BUFFERED;
+		}
+		// we previously called buffer_remove(buffer, len)
+		// it will be wrong if we change MAX_DATA_CHUNK to something large
+		// as pipes writes are atomic only to PIPE_MAX limit 
+		buffer_remove(buffer, ret);
+		len = buffer_len(buffer);
+		if (!len) {
+			struct server_header s_hdr;
+			s_hdr.type = MSG_XON;
+			s_hdr.client_id = client_id;
+			s_hdr.len = 0;
+			write_all_vchan_ext(&s_hdr, sizeof s_hdr);
+			return WRITE_STDIN_OK;
+		}
+	}
+
+}
+
+/*
+Write "len" bytes from "data" to "fd". If not all written, buffer the rest
+to "buffer", and notify the peer that the client "client_id" pipe is full via 
+MSG_XOFF message.
+*/
+int write_stdin(int fd, int client_id, const char *data, int len,
+		struct buffer *buffer)
+{
+	int ret;
+	int written = 0;
+
+	if (buffer_len(buffer)) {
+		buffer_append(buffer, data, len);
+		return WRITE_STDIN_BUFFERED;
+	}
+	while (written < len) {
+		ret = write(fd, data + written, len - written);
+		if (ret == 0) {
+			perror("write_stdin: write returns 0 ???");
+			exit(1);
+		}
+		if (ret == -1) {
+			struct server_header s_hdr;
+
+			if (errno != EAGAIN)
+				return WRITE_STDIN_ERROR;
+
+			buffer_append(buffer, data + written,
+				      len - written);
+
+			s_hdr.type = MSG_XOFF;
+			s_hdr.client_id = client_id;
+			s_hdr.len = 0;
+			write_all_vchan_ext(&s_hdr, sizeof s_hdr);
+
+			return WRITE_STDIN_BUFFERED;
+		}
+		written += ret;
+	}
+	return WRITE_STDIN_OK;
+
+}
+
+/* 
+Data feed process has exited, so we need to clear all control structures for 
+the client. However, if we have buffered data for the client (which is rare btw),
+fire&forget a separate process to flush them.
+*/
+int fork_and_flush_stdin(int fd, struct buffer *buffer)
+{
+	int i;
+	if (!buffer_len(buffer))
+		return 0;
+	switch (fork()) {
+	case -1:
+		perror("fork");
+		exit(1);
+	case 0:
+		break;
+	default:
+		return 1;
+	}
+	for (i = 0; i < MAX_FDS; i++)
+		if (i != fd && i != 2)
+			close(i);
+	set_block(fd);
+	write_all(fd, buffer_data(buffer), buffer_len(buffer));
+	_exit(0);
+}

rpm_spec/qubes-kernel-vm-support.spec.in

@@ -1,87 +0,0 @@
-#
-# The Qubes OS Project, http://www.qubes-os.org
-#
-# Copyright (C) 2015  Marek Marczykowski-Górecki
-#                       <marmarek@invisiblethingslab.com>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# 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.
-#
-
-Name:		qubes-kernel-vm-support
-Version:	@VERSION@
-Release:	1%{?dist}
-Summary:	Qubes VM initramfs modules
-Source0:    qubes-utils-%{version}.tar.gz
-
-Group:		Qubes
-Vendor:     Invisible Things Lab
-License:	GPL v2 only
-URL:		http://www.qubes-os.org
-
-Requires:	dracut
-
-%description
-This package contains:
-1. Dracut module required to setup Qubes VM root filesystem. This package is
-needed in VM only when the VM uses its own kernel (via pvgrub or so). Otherwise
-initrd is provided by dom0.
-
-%prep
-%setup -q -n qubes-utils-%{version}
-
-%install
-make install-fedora-kernel-support DESTDIR=%{buildroot}
-
-%files
-/usr/lib/dracut/modules.d/90qubes-vm
-/usr/lib/dracut/modules.d/90qubes-vm-modules
-/usr/lib/dracut/modules.d/90qubes-vm-simple
-/usr/lib/dracut/modules.d/80xen-scrub-pages
-/usr/sbin/qubes-prepare-vm-kernel
-%config(noreplace) /etc/default/grub.qubes-kernel-vm-support
-
-%triggerin -- grub2-tools
-if ! grep -q '/etc/default/grub.qubes-kernel-vm-support$' /etc/default/grub 2>/dev/null; then
-    # do not keep Qubes-related settings directly in user-controlled config,
-    # include another file
-    echo '. /etc/default/grub.qubes-kernel-vm-support' >> /etc/default/grub
-fi
-
-%preun
-if [ $1 -eq 0 ]; then
-    if grep -q '/etc/default/grub.qubes-kernel-vm-support$' /etc/default/grub 2>/dev/null; then
-        sed -i -e '/grub.qubes-kernel-vm-support$/d' /etc/default/grub
-    fi
-fi
-
-%posttrans
-
-# Rebuild all initramfs images to include updated modules
-if [ -r /usr/share/qubes/marker-vm ] && [ -x /usr/bin/dracut ]; then
-    ret=0
-    for img in /boot/initramfs-*.img; do
-        kver="${img#*initramfs-}"
-        kver="${kver%.img}"
-        dracut -f "$img" "$kver" || ret=$?
-    done
-    if [ "$ret" -eq 0 ]; then
-        # "milestone" initramfs update version:
-        # 1 - addition of xen scrub_pages enabling code
-        echo 1 > /var/lib/qubes/initramfs-updated
-    fi
-fi
-
-%changelog
-@CHANGELOG@

rpm_spec/qubes-utils.spec

@@ -0,0 +1,100 @@
+%define version %(cat version)
+%if 0%{?qubes_builder}
+%define _builddir %(pwd)
+%endif
+
+%{!?python_sitearch: %define python_sitearch %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib(1)")}
+
+Name:		qubes-utils
+Version:	%{version}
+Release:	1%{?dist}
+Summary:	Common Linux files for Qubes Dom0 and VM
+
+Group:		Qubes
+License:	GPL
+URL:		http://www.qubes-os.org
+
+Requires:	udev
+Requires:	%{name}-libs
+Requires:	ImageMagick
+Requires:	pycairo
+BuildRequires:  qubes-libvchan-devel
+
+%description
+Common Linux files for Qubes Dom0 and VM
+
+%package devel
+Summary:	Development headers for qubes-utils
+Release:	1%{?dist}
+Requires:	%{name}-libs
+
+%description devel
+Development header and files for qubes-utils
+
+%package libs
+Summary: Qubes utils libraries
+Release:	1%{?dist}
+
+%description libs
+Libraries for qubes-utils
+
+%prep
+# we operate on the current directory, so no need to unpack anything
+# symlink is to generate useful debuginfo packages
+rm -f %{name}-%{version}
+ln -sf . %{name}-%{version}
+%setup -T -D
+
+
+%build
+make all
+
+%install
+make install DESTDIR=%{buildroot}
+
+%post
+# dom0
+/bin/systemctl enable qubes-meminfo-writer-dom0.service > /dev/null 2>&1
+# VM
+/bin/systemctl enable qubes-meminfo-writer.service > /dev/null 2>&1
+
+%postun
+if [ $1 -eq 0 ]; then
+    /bin/systemctl disable qubes-meminfo-writer.service > /dev/null 2>&1
+    /bin/systemctl disable qubes-meminfo-writer.service > /dev/null 2>&1
+fi
+
+%post libs -p /sbin/ldconfig
+%postun libs -p /sbin/ldconfig
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%defattr(-,root,root,-)
+/etc/udev/rules.d/99-qubes-*.rules
+/usr/libexec/qubes/udev-*
+%{_sbindir}/meminfo-writer
+%{_unitdir}/qubes-meminfo-writer.service
+%{_unitdir}/qubes-meminfo-writer-dom0.service
+%{python_sitearch}/qubes/__init__.py
+%{python_sitearch}/qubes/__init__.pyc
+%{python_sitearch}/qubes/__init__.pyo
+%attr(0755,root,root) %{python_sitearch}/qubes/imgconverter.py
+%{python_sitearch}/qubes/imgconverter.pyc
+%{python_sitearch}/qubes/imgconverter.pyo
+
+%files libs
+%{_libdir}/libqrexec-utils.so.1
+%{_libdir}/libqubes-rpc-filecopy.so.1
+
+%files devel
+%defattr(-,root,root,-)
+/usr/include/libqrexec-utils.h
+/usr/include/libqubes-rpc-filecopy.h
+/usr/include/qrexec.h
+%{_libdir}/libqrexec-utils.so
+%{_libdir}/libqubes-rpc-filecopy.so
+
+%changelog
+

rpm_spec/qubes-utils.spec.in

@@ -1,132 +0,0 @@
-Name:		qubes-utils
-Version:	@VERSION@
-Release:	1%{?dist}
-Summary:	Common Linux files for Qubes Dom0 and VM
-Source0:    %{name}-%{version}.tar.gz
-
-Group:		Qubes
-License:	GPL
-URL:		http://www.qubes-os.org
-
-Requires:	udev
-Requires:	%{name}-libs
-Requires:	ImageMagick
-Requires:	python%{python3_pkgversion}-qubesimgconverter
-%{?systemd_requires}
-BuildRequires:  systemd
-BuildRequires:  python2-setuptools
-BuildRequires:  python%{python3_pkgversion}-setuptools
-BuildRequires:  python2-rpm-macros
-BuildRequires:  python3-rpm-macros
-# for meminfo-writer
-BuildRequires:  xen-devel
-BuildRequires:	gcc
-
-%description
-Common Linux files for Qubes Dom0 and VM
-
-%package -n python2-qubesimgconverter
-Summary:    Python package qubesimgconverter
-Requires:   python2
-Requires:   pycairo
-%if 0%{?rhel} >= 7
-Requires:   python-pillow
-Requires:   numpy
-%else
-Requires:   python2-pillow
-Requires:   python2-numpy
-%endif
-
-%description -n python2-qubesimgconverter
-Python package qubesimgconverter
-
-%package -n python%{python3_pkgversion}-qubesimgconverter
-Summary:    Python package qubesimgconverter
-Requires:   python%{python3_pkgversion}
-Requires:   python%{python3_pkgversion}-cairo
-Requires:   python%{python3_pkgversion}-pillow
-Requires:   python%{python3_pkgversion}-numpy
-
-%description -n python%{python3_pkgversion}-qubesimgconverter
-Python package qubesimgconverter
-
-%package devel
-Summary:	Development headers for qubes-utils
-Release:	1%{?dist}
-Requires:	%{name}-libs
-
-%description devel
-Development header and files for qubes-utils
-
-%package libs
-Summary: Qubes utils libraries
-Release:	1%{?dist}
-
-%description libs
-Libraries for qubes-utils
-
-%prep
-%setup -q
-
-%build
-export PYTHON=%{__python2}
-make all BACKEND_VMM=@BACKEND_VMM@
-
-%install
-make install DESTDIR=%{buildroot} PYTHON=%{__python2}
-rm -rf imgconverter/build
-%make_install -C imgconverter PYTHON=%{__python3}
-
-%post
-# dom0
-%systemd_post qubes-meminfo-writer-dom0.service
-# VM
-%systemd_post qubes-meminfo-writer.service
-
-%preun
-%systemd_preun qubes-meminfo-writer-dom0.service
-%systemd_preun qubes-meminfo-writer.service
-
-%postun
-%systemd_postun_with_restart qubes-meminfo-writer-dom0.service
-%systemd_postun_with_restart qubes-meminfo-writer.service
-
-%post libs -p /sbin/ldconfig
-%postun libs -p /sbin/ldconfig
-
-%clean
-rm -rf $RPM_BUILD_ROOT
-
-%files
-%defattr(-,root,root,-)
-/lib/udev/rules.d/*-qubes-*.rules
-/usr/lib/qubes/udev-*
-%{_sbindir}/meminfo-writer
-%{_unitdir}/qubes-meminfo-writer.service
-%{_unitdir}/qubes-meminfo-writer-dom0.service
-
-%files -n python2-qubesimgconverter
-%{python2_sitelib}/qubesimgconverter/__init__.py*
-%{python2_sitelib}/qubesimgconverter/imggen.py*
-%{python2_sitelib}/qubesimgconverter/test.py*
-%{python2_sitelib}/qubesimgconverter/test_integ.py*
-%{python2_sitelib}/qubesimgconverter-%{version}-py?.?.egg-info
-
-%files -n python%{python3_pkgversion}-qubesimgconverter
-%{python3_sitelib}/qubesimgconverter/__init__.py
-%{python3_sitelib}/qubesimgconverter/imggen.py
-%{python3_sitelib}/qubesimgconverter/test.py
-%{python3_sitelib}/qubesimgconverter/test_integ.py
-%{python3_sitelib}/qubesimgconverter-%{version}-py?.?.egg-info
-%{python3_sitelib}/qubesimgconverter/__pycache__
-
-%files libs
-%{_libdir}/libqubes-rpc-filecopy.so.2
-
-%files devel
-%defattr(-,root,root,-)
-/usr/include/libqubes-rpc-filecopy.h
-%{_libdir}/libqubes-rpc-filecopy.so
-
-%changelog
-@CHANGELOG@

udev/Makefile

@@ -1,14 +1,13 @@
 all:
 
 install:
-	mkdir -p $(DESTDIR)$(SYSLIBDIR)/udev/rules.d
-	cp udev-qubes-block.rules $(DESTDIR)$(SYSLIBDIR)/udev/rules.d/99-qubes-block.rules
-	cp udev-qubes-usb.rules $(DESTDIR)$(SYSLIBDIR)/udev/rules.d/99-qubes-usb.rules
-	cp udev-qubes-misc.rules $(DESTDIR)$(SYSLIBDIR)/udev/rules.d/99-qubes-misc.rules
-	cp udev-qubes-dmroot.rules $(DESTDIR)$(SYSLIBDIR)/udev/rules.d/90-qubes-dmroot.rules
+	mkdir -p $(DESTDIR)/etc/udev/rules.d
+	cp udev-qubes-block.rules $(DESTDIR)/etc/udev/rules.d/99-qubes-block.rules
+	cp udev-qubes-usb.rules $(DESTDIR)/etc/udev/rules.d/99-qubes-usb.rules
 
-	mkdir -p $(DESTDIR)$(SCRIPTSDIR)
-	cp udev-block-add-change $(DESTDIR)$(SCRIPTSDIR)
-	cp udev-block-remove $(DESTDIR)$(SCRIPTSDIR)
-	cp udev-usb-add-change $(DESTDIR)$(SCRIPTSDIR)
-	cp udev-usb-remove $(DESTDIR)$(SCRIPTSDIR)
+	mkdir -p $(DESTDIR)/usr/libexec/qubes
+	cp udev-block-add-change $(DESTDIR)/usr/libexec/qubes/
+	cp udev-block-remove $(DESTDIR)/usr/libexec/qubes/
+	cp udev-block-cleanup $(DESTDIR)/usr/libexec/qubes/
+	cp udev-usb-add-change $(DESTDIR)/usr/libexec/qubes/
+	cp udev-usb-remove $(DESTDIR)/usr/libexec/qubes/

udev/udev-block-add-change

@@ -1,145 +1,47 @@
 #!/bin/bash
 
-shopt -s nullglob
-
-
 export LC_CTYPE=en_US.UTF-8
 NAME=${DEVNAME#/dev/}
 DESC="`echo "${ID_MODEL} (${ID_FS_LABEL})" | iconv -f utf8 -t ascii//TRANSLIT`"
 SIZE=$[ $(cat /sys/$DEVPATH/size) * 512 ]
 MODE=w
-QDB_KEY="/qubes-block-devices/$NAME"
+XS_KEY="qubes-block-devices/$NAME"
 
 xs_remove() {
-    if is_attached /sys$DEVPATH; then
-        return 0
-    fi
-
-    if qubesdb-read -q "$QDB_KEY/desc" >/dev/null; then
-        qubesdb-rm "$QDB_KEY/"
-        qubesdb-write /qubes-block-devices ''
+    if [ "$QUBES_EXPOSED" == "1" ]; then
+        xenstore-rm "$XS_KEY"
     fi
+    echo QUBES_EXPOSED=0
 }
 
-is_used() {
-    local sys_devpath=$1
-    local devname=$(grep ^DEVNAME= $sys_devpath/uevent | cut -f 2 -d =)
-    # mounted; or enabled swap
-    if lsblk -dnr -o MOUNTPOINT "/dev/$devname" | grep -q .; then
-        return 0
-    fi
-    # part of other device-mapper
-    if [ -n "`ls -A $sys_devpath/holders 2> /dev/null`" ]; then
-        return 0
-    fi
-    # open device-mapper device
-    if [ -f "$sys_devpath/dm/name" ] && \
-            /sbin/dmsetup info "$(cat $sys_devpath/dm/name)" |\
-                grep -q "^Open count:.*[1-9]"; then
-        return 0
-    fi
-    return 1
-}
-
-refresh_another() {
-    # launch this script for other device
-    local devpath=$1
-    local launch_env=$(udevadm info -q all -x -p "$devpath" \
-            | grep ^E: | cut -d ' ' -f 2- | tr ' ' ':')
-    env -i PATH=$PATH $launch_env $0
-}
-
-is_attached() {
-    dev_hex=$(stat -c %t:%T /dev/$(basename $1))
-    if [ -z "$dev_hex" -o "$dev_hex" = "0:0" ]; then
-        return 1
-    fi
-    # looking at sysfs is much faster than looking at xenstore
-    # this code requires no subprocesses and doesn't hit argument length limitations
-    for i in /sys/bus/xen-backend/drivers/vbd/vbd-*/physical_device; do
-        read i_dev_hex < "$i"
-        if test "$i_dev_hex" == "$dev_hex"; then
-            return 0
-        fi
-    done
-    return 1
-}
-
-# update info about parent devices, if any:
-if [ -f /sys$DEVPATH/partition ]; then
-    parent=$(dirname $(readlink -f /sys$DEVPATH))
-    refresh_another /$(realpath --relative-to=/sys $parent)
-    # if parent device is already attached, skip its partitions
-    if is_attached $parent; then
-        xs_remove
-        exit 0
-    fi
-fi
-
-# and underlying devices of device-mapper (if any)
-for dev in /sys$DEVPATH/slaves/*; do
-    refresh_another /$(realpath --relative-to=/sys $dev)
-done
-
-# cache slave devices for remove event
-if [ -n "$DM_NAME" ]; then
-    ls -1 /sys$DEVPATH/slaves/ > /var/run/qubes/block-slave-cache-$NAME
-fi
-
-# then take care of this device:
-
-# udev rules already excluded this device:
-
-if [ "$DM_UDEV_DISABLE_DISK_RULES_FLAG" = "1" ]; then
+# Ignore mounted...
+if fgrep -q $DEVNAME /proc/mounts; then
     xs_remove
     exit 0
 fi
-
-# device itself is already used
-if is_used /sys$DEVPATH; then
+# ... and used by device-mapper
+if [ -n "`ls -A /sys/$DEVPATH/holders 2> /dev/null`" ]; then
     xs_remove
     exit 0
 fi
-
-# or one of its partitions is used
-# or already attached (prevent attaching both device and its partition(s) at
-# the same time)
-for part in /sys$DEVPATH/$NAME*; do
-    if [ -d $part ]; then
-        if is_used $part || is_attached $part; then
-            xs_remove
-            exit 0
-        fi
-    fi
-done
-
-# or "empty" loop device
+# ... and used device-mapper devices
+if [ -n "$DM_NAME" ] && /sbin/dmsetup info "$DM_NAME" | grep -q "^Open count:.*[1-9]"; then
+    xs_remove
+    exit 0
+fi
+# ... and "empty" loop devices
 if [ "$MAJOR" -eq 7 -a ! -d /sys/$DEVPATH/loop ]; then
     xs_remove
     exit 0
 fi
-
-# or unconnected Network Block Device
-if [ "$MAJOR" -eq 43 -a ! -e /sys/$DEVPATH/pid ]; then
+# ... and temporary devices used during VM startup
+if [[ "$NAME" = 'loop'* ]] && \
+       [[ "`cat /sys/block/${NAME%p*}/loop/backing_file`" = \
+            '/var/lib/qubes/'*'/volatile.img' ]]; then
     xs_remove
     exit 0
 fi
 
-# ... and loop devices from excluded directories
-if [[ "$NAME" = 'loop'* ]]; then
-    backing_file=$(cat /sys/block/${NAME}/loop/backing_file)
-    if [ -n "$backing_file" ]; then
-        dir_to_check=$(dirname "$backing_file")
-        while [ "$dir_to_check" != "/" -a "$dir_to_check" != "." ]; do
-            if [ -e "$dir_to_check/.qubes-exclude-block-devices" ]; then
-                xs_remove
-                exit 0
-            fi
-            dir_to_check=$(dirname "$dir_to_check")
-        done
-    fi
-fi
-
 # Check if device is read-only
 if [ "`cat /sys/$DEVPATH/ro`" -eq 1 ]; then
     MODE=r
@@ -164,12 +66,18 @@ if [ -n "$DM_NAME" ]; then
     DESC="$DM_NAME"
 fi
 
-# The last one is meant to trigger watches
-qubesdb-write \
-    "$QDB_KEY/desc" "$DESC" \
-    "$QDB_KEY/size" "$SIZE" \
-    "$QDB_KEY/mode" "$MODE" \
-    /qubes-block-devices ''
+# Get lock only in dom0 - there are so many block devices so it causes xenstore
+# deadlocks sometimes.
+if [ -f /etc/qubes-release ]; then
+    # Skip xenstore-write if cannot obtain lock. This can mean very early system startup
+    # stage without /run mounted (or populated). Devices will be rediscovered later
+    # by qubes-core startup script.
+    exec 9>>/var/run/qubes/block-xenstore.lock || exit 0
+    flock 9
+fi
+
+xenstore-write "$XS_KEY/desc" "$DESC" "$XS_KEY/size" "$SIZE" "$XS_KEY/mode" "$MODE"
+echo QUBES_EXPOSED=1
 
 # Make sure that block backend is loaded
 /sbin/modprobe xen-blkback 2> /dev/null || /sbin/modprobe blkbk

udev/udev-block-cleanup

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+DEVID=$[ $MAJOR * 256 + $MINOR ]
+
+XS_PATH="device/vbd/$DEVID"
+
+# Double check that DEVID is not empty
+[ -n "$DEVID" ] && xenstore-rm $XS_PATH

udev/udev-block-remove

@@ -1,16 +1,32 @@
 #!/bin/sh
 
 NAME=${DEVNAME#/dev/}
-QDB_KEY="/qubes-block-devices/$NAME"
-# Trailing slash is intentional - it will remove the whole directory, instead of
-# a single base entry
-qubesdb-rm "$QDB_KEY/"
-qubesdb-write /qubes-block-devices ''
+XS_KEY="qubes-block-devices/$NAME"
+xenstore-rm "$XS_KEY"
 
-if [ -r /var/run/qubes/block-slave-cache-$NAME ]; then
-    # update info about underlying devices of device-mapper (if any);
-    for dev in $(cat /var/run/qubes/block-slave-cache-$NAME); do
-        udevadm trigger /sys/class/block/$dev
+# If device was connected to some VM - detach it
+# Notice: this can be run also in VM, so we cannot use xl...
+
+device_detach() {
+    xs_path=$1
+
+    xenstore-write $xs_path/online 0 $xs_path/state 5
+
+    # Wait for backend to finish dev shutdown
+    try=30
+    # -lt will break loop also when 'state' will be empty
+    while [ "`xenstore-read $xs_path/state 2> /dev/null`" -lt 6 ]; do
+        try=$[ $try - 1 ]
+        [ "$try" -le 0 ] && break
+        sleep 0.1
     done
-    rm -f /var/run/qubes/block-slave-cache-$NAME
-fi
+    xenstore-rm $xs_path
+}
+
+for XS_DEV_PATH in `xenstore-ls -f backend/vbd | grep 'backend/vbd/[0-9]*/[0-9]* ' | cut -f 1 -d ' '`; do
+    CUR_DEVICE=`xenstore-read "$XS_DEV_PATH/params"`
+    if [ "$CUR_DEVICE" == "$DEVNAME" ]; then
+        device_detach "$XS_DEV_PATH"
+        exit 0
+    fi
+done

udev/udev-qubes-block.rules

@@ -1,4 +1,4 @@
-# Expose all (except xen-frontend) block devices via Qubes DB
+# Expose all (except xen-frontend) block devices via xenstore
 
 # Only block devices are interesting
 SUBSYSTEM!="block", GOTO="qubes_block_end"
@@ -10,16 +10,17 @@ KERNEL=="xvda|xvdb|xvdc*|xvdd", ENV{UDISKS_IGNORE}="1"
 # Skip xen-blkfront devices
 ENV{MAJOR}=="202", GOTO="qubes_block_end"
 
-# skip devices excluded elsewhere
-ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}=="1", GOTO="qubes_block_end"
-
 # Skip device-mapper devices
-KERNEL=="dm-*", ENV{DM_NAME}=="snapshot-*", GOTO="qubes_block_end"
-KERNEL=="dm-*", ENV{DM_NAME}=="origin-*", GOTO="qubes_block_end"
-KERNEL=="dm-*", ENV{DM_NAME}=="", GOTO="qubes_block_end"
+ENV{MAJOR}=="253", ENV{DM_NAME}=="snapshot-*", GOTO="qubes_block_end"
+ENV{MAJOR}=="253", ENV{DM_NAME}=="origin-*", GOTO="qubes_block_end"
+ENV{MAJOR}=="253", ENV{DM_NAME}=="", GOTO="qubes_block_end"
 
-ACTION=="add", RUN+="/usr/lib/qubes/udev-block-add-change"
-ACTION=="change", RUN+="/usr/lib/qubes/udev-block-add-change"
-ACTION=="remove", RUN+="/usr/lib/qubes/udev-block-remove"
+IMPORT{db}="QUBES_EXPOSED"
+ACTION=="add", IMPORT{program}="/usr/bin/flock /var/run/qubes-udev.lock -c /usr/libexec/qubes/udev-block-add-change"
+ACTION=="change", IMPORT{program}="/usr/bin/flock /var/run/qubes-udev.lock -c /usr/libexec/qubes/udev-block-add-change"
+ACTION=="remove", RUN+="/usr/libexec/qubes/udev-block-remove"
 
 LABEL="qubes_block_end"
+
+# Cleanup disconnected frontend from xenstore
+ACTION=="remove", SUBSYSTEM=="block", ENV{MAJOR}=="202", RUN+="/usr/libexec/qubes/udev-block-cleanup"

udev/udev-qubes-dmroot.rules

@@ -1,5 +0,0 @@
-# Create /dev/mapper/dmroot symlink on TemplateVM/StandaloneVM to make
-# grub-mkconfig happy.
-# On TemplateBasedVM, it is really a device mapper device.
-
-SUBSYSTEM=="block", ENV{ID_PART_ENTRY_NAME}=="Root\x20filesystem", ATTR{ro}=="0", SYMLINK+="mapper/dmroot"

udev/udev-qubes-misc.rules

@@ -1,7 +0,0 @@
-# Setup permissions to allow libvchan connections as normal user
-KERNEL=="xen/evtchn", MODE="0660", GROUP="qubes"
-KERNEL=="xen/gntdev", MODE="0660", GROUP="qubes"
-KERNEL=="xen/gntalloc", MODE="0660", GROUP="qubes"
-KERNEL=="xen/privcmd", MODE="0660", GROUP="qubes"
-KERNEL=="xen/xenbus", MODE="0660", GROUP="qubes"
-KERNEL=="xen/hypercall", MODE="0660", GROUP="qubes"

udev/udev-qubes-usb.rules

@@ -1,13 +1,10 @@
-# Expose all USB devices (except block) via Qubes DB
+# Expose all USB devices (except block) via xenstore
 
 # Handle only USB devices
 SUBSYSTEM!="usb", GOTO="qubes_usb_end"
 
-# ignore qemu emulated devices in HVM
-ENV{ID_VENDOR}=="QEMU", GOTO="qubes_usb_end"
-
-ACTION=="add", IMPORT{program}="/usr/lib/qubes/udev-usb-add-change"
-ACTION=="change", IMPORT{program}="/usr/lib/qubes/udev-usb-add-change"
-ACTION=="remove", RUN+="/usr/lib/qubes/udev-usb-remove"
+ACTION=="add", IMPORT{program}="/usr/libexec/qubes/udev-usb-add-change"
+ACTION=="change", IMPORT{program}="/usr/libexec/qubes/udev-usb-add-change"
+ACTION=="remove", RUN+="/usr/libexec/qubes/udev-usb-remove"
 
 LABEL="qubes_usb_end"

udev/udev-usb-add-change

@@ -12,7 +12,7 @@
 [ "`echo $TYPE | cut -f1 -d/`" = "9" ] && exit 0
 [ "$DEVTYPE" != "usb_device" ] && exit 0
 
-# qubesdb doesn't allow dot in key name
+# xenstore doesn't allow dot in key name
 XSNAME=`basename ${DEVPATH} | tr . _`
 
 # FIXME: For some devices (my Cherry keyboard) ID_SERIAL does not
@@ -21,19 +21,20 @@ XSNAME=`basename ${DEVPATH} | tr . _`
 #DESC=`python -c "dev='%d-%d' % (int('${BUSNUM}'.lstrip('0')), (int('${DEVNUM}'.lstrip('0'))-1)); from xen.util import vusb_util; print vusb_util.get_usbdevice_info(dev);"`
 DESC="${ID_VENDOR_ID}:${ID_MODEL_ID} ${ID_SERIAL}"
 
-VERSION=`cat /sys/$DEVPATH/version | tr -d ' '|cut -f 1 -d .`
-
-# ignore usbip-connected devices, as most likely already passed through from
-# another VM
-if echo $DEVPATH | grep -q /vhci_hcd; then
-    exit 0
+VERSION=`cat /sys/$DEVPATH/version`
+if [ "${VERSION}" = " 1.00" -o "${VERSION}" = " 1.10" ] ; then
+	VERSION=1
+elif [ "${VERSION}" = " 2.00" ] ; then
+	VERSION=2
+else
+	# FIXME: silently ignoring devices with unexpected USB version
+	exit 0
 fi
 
-QDB_KEY="/qubes-usb-devices/$XSNAME"
+XS_KEY="qubes-usb-devices/$XSNAME"
 
-qubesdb-write "$QDB_KEY/desc" "$DESC"
-qubesdb-write "$QDB_KEY/usb-ver" "$VERSION"
-qubesdb-write /qubes-usb-devices ''
+xenstore-write "$XS_KEY/desc" "$DESC"
+xenstore-write "$XS_KEY/usb-ver" "$VERSION"
 
 # Make sure PVUSB backend driver is loaded.
-/sbin/modprobe xen-usbback 2> /dev/null || true
+/sbin/modprobe xen-usbback 2> /dev/null || /sbin/modprobe usbbk

udev/udev-usb-remove

@@ -4,7 +4,6 @@
 [ "`echo $TYPE | cut -f1 -d/`" = "9" ] && exit 0
 
 NAME=`basename ${DEVPATH} | tr . _`
-QDB_KEY="/qubes-usb-devices/$NAME/"
+XS_KEY="qubes-usb-devices/$NAME"
 
-qubesdb-rm "$QDB_KEY"
-qubesdb-write /qubes-usb-devices ''
+xenstore-rm "$XS_KEY"

version

@@ -1 +1 @@
-4.1.3
+2.0.21