tests/qemu-iotests/045

   1 #!/usr/bin/env python
   2 #
   3 # Tests for fdsets and getfd.
   4 #
   5 # Copyright (C) 2012 IBM Corp.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 import os
  22 import iotests
  23 from iotests import qemu_img
  24
  25 image0 = os.path.join(iotests.test_dir, 'image0')
  26 image1 = os.path.join(iotests.test_dir, 'image1')
  27 image2 = os.path.join(iotests.test_dir, 'image2')
  28 image3 = os.path.join(iotests.test_dir, 'image3')
  29 image4 = os.path.join(iotests.test_dir, 'image4')
  30
  31 class TestFdSets(iotests.QMPTestCase):
  32
  33     def setUp(self):
  34         self.vm = iotests.VM()
  35         qemu_img('create', '-f', iotests.imgfmt, image0, '128K')
  36         qemu_img('create', '-f', iotests.imgfmt, image1, '128K')
  37         qemu_img('create', '-f', iotests.imgfmt, image2, '128K')
  38         qemu_img('create', '-f', iotests.imgfmt, image3, '128K')
  39         qemu_img('create', '-f', iotests.imgfmt, image4, '128K')
  40         self.file0 = open(image0, 'r')
  41         self.file1 = open(image1, 'w+')
  42         self.file2 = open(image2, 'r')
  43         self.file3 = open(image3, 'r')
  44         self.file4 = open(image4, 'r')
  45         self.vm.add_fd(self.file0.fileno(), 1, 'image0:r')
  46         self.vm.add_fd(self.file1.fileno(), 1, 'image1:w+')
  47         self.vm.add_fd(self.file2.fileno(), 0, 'image2:r')
  48         self.vm.add_fd(self.file3.fileno(), 2, 'image3:r')
  49         self.vm.add_fd(self.file4.fileno(), 2, 'image4:r')
  50         self.vm.add_drive("/dev/fdset/1")
  51         self.vm.launch()
  52
  53     def tearDown(self):
  54         self.vm.shutdown()
  55         self.file0.close()
  56         self.file1.close()
  57         self.file2.close()
  58         self.file3.close()
  59         self.file4.close()
  60         os.remove(image0)
  61         os.remove(image1)
  62         os.remove(image2)
  63         os.remove(image3)
  64         os.remove(image4)
  65
  66     def test_query_fdset(self):
  67         result = self.vm.qmp('query-fdsets')
  68         self.assert_qmp(result, 'return[0]/fdset-id', 2)
  69         self.assert_qmp(result, 'return[1]/fdset-id', 1)
  70         self.assert_qmp(result, 'return[2]/fdset-id', 0)
  71         self.assert_qmp(result, 'return[0]/fds[0]/opaque', 'image3:r')
  72         self.assert_qmp(result, 'return[0]/fds[1]/opaque', 'image4:r')
  73         self.assert_qmp(result, 'return[1]/fds[0]/opaque', 'image0:r')
  74         self.assert_qmp(result, 'return[1]/fds[1]/opaque', 'image1:w+')
  75         self.assert_qmp(result, 'return[2]/fds[0]/opaque', 'image2:r')
  76         self.vm.shutdown()
  77
  78     def test_remove_fdset(self):
  79         result = self.vm.qmp('remove-fd', fdset_id=2)
  80         self.assert_qmp(result, 'return', {})
  81         result = self.vm.qmp('query-fdsets')
  82         self.assert_qmp(result, 'return[0]/fdset-id', 1)
  83         self.assert_qmp(result, 'return[1]/fdset-id', 0)
  84         self.assert_qmp(result, 'return[0]/fds[0]/opaque', 'image0:r')
  85         self.assert_qmp(result, 'return[0]/fds[1]/opaque', 'image1:w+')
  86         self.assert_qmp(result, 'return[1]/fds[0]/opaque', 'image2:r')
  87         self.vm.shutdown()
  88
  89     def test_remove_fd(self):
  90         result = self.vm.qmp('query-fdsets')
  91         fd_image3 = result['return'][0]['fds'][0]['fd']
  92         result = self.vm.qmp('remove-fd', fdset_id=2, fd=fd_image3)
  93         self.assert_qmp(result, 'return', {})
  94         result = self.vm.qmp('query-fdsets')
  95         self.assert_qmp(result, 'return[0]/fdset-id', 2)
  96         self.assert_qmp(result, 'return[1]/fdset-id', 1)
  97         self.assert_qmp(result, 'return[2]/fdset-id', 0)
  98         self.assert_qmp(result, 'return[0]/fds[0]/opaque', 'image4:r')
  99         self.assert_qmp(result, 'return[1]/fds[0]/opaque', 'image0:r')
 100         self.assert_qmp(result, 'return[1]/fds[1]/opaque', 'image1:w+')
 101         self.assert_qmp(result, 'return[2]/fds[0]/opaque', 'image2:r')
 102         self.vm.shutdown()
 103
 104     def test_remove_fd_invalid_fdset(self):
 105         result = self.vm.qmp('query-fdsets')
 106         fd_image3 = result['return'][0]['fds'][0]['fd']
 107         result = self.vm.qmp('remove-fd', fdset_id=3, fd=fd_image3)
 108         self.assert_qmp(result, 'error/class', 'GenericError')
 109         self.assert_qmp(result, 'error/desc',
 110             'File descriptor named \'fdset-id:3, fd:%d\' not found' % fd_image3)
 111         self.vm.shutdown()
 112
 113     def test_remove_fd_invalid_fd(self):
 114         result = self.vm.qmp('query-fdsets')
 115         result = self.vm.qmp('remove-fd', fdset_id=2, fd=999)
 116         self.assert_qmp(result, 'error/class', 'GenericError')
 117         self.assert_qmp(result, 'error/desc',
 118             'File descriptor named \'fdset-id:2, fd:999\' not found')
 119         self.vm.shutdown()
 120
 121     def test_add_fd_invalid_fd(self):
 122         result = self.vm.qmp('add-fd', fdset_id=2)
 123         self.assert_qmp(result, 'error/class', 'GenericError')
 124         self.assert_qmp(result, 'error/desc',
 125                 'No file descriptor supplied via SCM_RIGHTS')
 126         self.vm.shutdown()
 127
 128 # Add fd at runtime, there are two ways: monitor related or fdset related
 129 class TestSCMFd(iotests.QMPTestCase):
 130     def setUp(self):
 131         self.vm = iotests.VM()
 132         qemu_img('create', '-f', iotests.imgfmt, image0, '128K')
 133         # Add an unused monitor, to verify it works fine when two monitor
 134         # instances present
 135         self.vm.add_monitor_null()
 136         self.vm.launch()
 137
 138     def tearDown(self):
 139         self.vm.shutdown()
 140         os.remove(image0)
 141
 142     def _send_fd_by_SCM(self):
 143         ret = self.vm.send_fd_scm(file_path=image0)
 144         self.assertEqual(ret, 0, 'Failed to send fd with UNIX SCM')
 145
 146     def test_add_fd(self):
 147         self._send_fd_by_SCM()
 148         result = self.vm.qmp('add-fd', fdset_id=2, opaque='image0:r')
 149         self.assert_qmp(result, 'return/fdset-id', 2)
 150
 151     def test_getfd(self):
 152         self._send_fd_by_SCM()
 153         result = self.vm.qmp('getfd', fdname='image0:r')
 154         self.assert_qmp(result, 'return', {})
 155
 156     def test_getfd_invalid_fdname(self):
 157         self._send_fd_by_SCM()
 158         result = self.vm.qmp('getfd', fdname='0image0:r')
 159         self.assert_qmp(result, 'error/class', 'GenericError')
 160         self.assert_qmp(result, 'error/desc',
 161             "Parameter 'fdname' expects a name not starting with a digit")
 162
 163     def test_closefd(self):
 164         self._send_fd_by_SCM()
 165         result = self.vm.qmp('getfd', fdname='image0:r')
 166         self.assert_qmp(result, 'return', {})
 167         result = self.vm.qmp('closefd', fdname='image0:r')
 168         self.assert_qmp(result, 'return', {})
 169
 170     def test_closefd_fd_not_found(self):
 171         fdname = 'image0:r'
 172         result = self.vm.qmp('closefd', fdname=fdname)
 173         self.assert_qmp(result, 'error/class', 'GenericError')
 174         self.assert_qmp(result, 'error/desc',
 175             "File descriptor named '%s' not found" % fdname)
 176
 177 if __name__ == '__main__':
 178     iotests.main(supported_fmts=['raw'],
 179                  supported_protocols=['file'])