github.com/kubiko/snapd@v0.0.0-20201013125620-d4f3094d9ddf/interfaces/builtin/uio_test.go (about) 1 // -*- Mode: Go; indent-tabs-mode: t -*- 2 3 /* 4 * Copyright (C) 2019 Canonical Ltd 5 * 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 3 as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 */ 19 20 package builtin_test 21 22 import ( 23 . "gopkg.in/check.v1" 24 25 "github.com/snapcore/snapd/interfaces" 26 "github.com/snapcore/snapd/interfaces/apparmor" 27 "github.com/snapcore/snapd/interfaces/builtin" 28 "github.com/snapcore/snapd/interfaces/udev" 29 "github.com/snapcore/snapd/snap" 30 "github.com/snapcore/snapd/snap/snaptest" 31 "github.com/snapcore/snapd/testutil" 32 ) 33 34 type uioInterfaceSuite struct { 35 testutil.BaseTest 36 iface interfaces.Interface 37 slotGadgetInfo0 *snap.SlotInfo 38 slotGadgetInfo1 *snap.SlotInfo 39 slotGadget0 *interfaces.ConnectedSlot 40 slotGadget1 *interfaces.ConnectedSlot 41 plugInfo *snap.PlugInfo 42 plug *interfaces.ConnectedPlug 43 } 44 45 var _ = Suite(&uioInterfaceSuite{ 46 iface: builtin.MustInterface("uio"), 47 }) 48 49 func (s *uioInterfaceSuite) SetUpTest(c *C) { 50 info := snaptest.MockInfo(c, ` 51 name: gadget 52 version: 0 53 type: gadget 54 slots: 55 uio-0: 56 interface: uio 57 path: /dev/uio0 58 uio-1: 59 interface: uio 60 path: /dev/uio1 61 `, nil) 62 s.slotGadgetInfo0 = info.Slots["uio-0"] 63 s.slotGadgetInfo1 = info.Slots["uio-1"] 64 s.slotGadget0 = interfaces.NewConnectedSlot(s.slotGadgetInfo0, nil, nil) 65 s.slotGadget1 = interfaces.NewConnectedSlot(s.slotGadgetInfo1, nil, nil) 66 67 info = snaptest.MockInfo(c, ` 68 name: consumer 69 version: 0 70 plugs: 71 uio: 72 interface: uio 73 apps: 74 app: 75 command: foo 76 `, nil) 77 s.plugInfo = info.Plugs["uio"] 78 s.plug = interfaces.NewConnectedPlug(s.plugInfo, nil, nil) 79 } 80 81 func (s *uioInterfaceSuite) TestName(c *C) { 82 c.Assert(s.iface.Name(), Equals, "uio") 83 } 84 85 func (s *uioInterfaceSuite) TestSanitizeSlot(c *C) { 86 c.Assert(interfaces.BeforePrepareSlot(s.iface, s.slotGadgetInfo0), IsNil) 87 brokenSlot := snaptest.MockInfo(c, ` 88 name: broken-gadget 89 version: 1 90 type: gadget 91 slots: 92 uio: 93 path: /dev/foo 94 `, nil).Slots["uio"] 95 c.Assert(interfaces.BeforePrepareSlot(s.iface, brokenSlot), ErrorMatches, `slot "broken-gadget:uio" path attribute must be a valid UIO device node`) 96 } 97 98 func (s *uioInterfaceSuite) TestUDevSpec(c *C) { 99 spec := &udev.Specification{} 100 c.Assert(spec.AddConnectedPlug(s.iface, s.plug, s.slotGadget0), IsNil) 101 c.Assert(spec.Snippets(), HasLen, 2) 102 c.Assert(spec.Snippets(), testutil.Contains, `# uio 103 SUBSYSTEM=="uio", KERNEL=="uio0", TAG+="snap_consumer_app"`) 104 c.Assert(spec.Snippets(), testutil.Contains, `TAG=="snap_consumer_app", RUN+="/usr/lib/snapd/snap-device-helper $env{ACTION} snap_consumer_app $devpath $major:$minor"`) 105 } 106 107 func (s *uioInterfaceSuite) TestAppArmorSpec(c *C) { 108 spec := &apparmor.Specification{} 109 // Simulate two UIO connections. 110 c.Assert(spec.AddConnectedPlug(s.iface, s.plug, s.slotGadget0), IsNil) 111 c.Assert(spec.AddConnectedPlug(s.iface, s.plug, s.slotGadget1), IsNil) 112 c.Assert(spec.SecurityTags(), DeepEquals, []string{"snap.consumer.app"}) 113 c.Assert(spec.SnippetForTag("snap.consumer.app"), Equals, ""+ 114 "/dev/uio0 rw,\n"+ 115 "/dev/uio1 rw,\n"+ 116 "/sys/devices/platform/**/uio/uio[0-9]** r, # common rule for all uio connections") 117 } 118 119 func (s *uioInterfaceSuite) TestStaticInfo(c *C) { 120 si := interfaces.StaticInfoOf(s.iface) 121 c.Assert(si.ImplicitOnCore, Equals, false) 122 c.Assert(si.ImplicitOnClassic, Equals, false) 123 c.Assert(si.Summary, Equals, "allows access to specific uio device") 124 c.Assert(si.BaseDeclarationSlots, testutil.Contains, "uio") 125 } 126 127 func (s *uioInterfaceSuite) TestAutoConnect(c *C) { 128 c.Check(s.iface.AutoConnect(nil, nil), Equals, true) 129 } 130 131 func (s *uioInterfaceSuite) TestInterfaces(c *C) { 132 c.Check(builtin.Interfaces(), testutil.DeepContains, s.iface) 133 }