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ifacestate_test.go
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ifacestate_test.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2016 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package ifacestate_test
import (
"bytes"
"io/ioutil"
"os"
"path/filepath"
"sort"
"strings"
"testing"
"time"
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/asserts"
"github.com/snapcore/snapd/asserts/assertstest"
"github.com/snapcore/snapd/dirs"
"github.com/snapcore/snapd/interfaces"
"github.com/snapcore/snapd/interfaces/ifacetest"
"github.com/snapcore/snapd/logger"
"github.com/snapcore/snapd/osutil"
"github.com/snapcore/snapd/overlord"
"github.com/snapcore/snapd/overlord/assertstate"
"github.com/snapcore/snapd/overlord/hookstate"
"github.com/snapcore/snapd/overlord/ifacestate"
"github.com/snapcore/snapd/overlord/ifacestate/ifacerepo"
"github.com/snapcore/snapd/overlord/snapstate"
"github.com/snapcore/snapd/overlord/state"
"github.com/snapcore/snapd/release"
"github.com/snapcore/snapd/snap"
"github.com/snapcore/snapd/snap/snaptest"
"github.com/snapcore/snapd/testutil"
)
func TestInterfaceManager(t *testing.T) { TestingT(t) }
type interfaceManagerSuite struct {
testutil.BaseTest
o *overlord.Overlord
state *state.State
db *asserts.Database
privateMgr *ifacestate.InterfaceManager
privateHookMgr *hookstate.HookManager
extraIfaces []interfaces.Interface
extraBackends []interfaces.SecurityBackend
secBackend *ifacetest.TestSecurityBackend
mockSnapCmd *testutil.MockCmd
storeSigning *assertstest.StoreStack
log *bytes.Buffer
}
var _ = Suite(&interfaceManagerSuite{})
func (s *interfaceManagerSuite) SetUpTest(c *C) {
s.BaseTest.SetUpTest(c)
s.storeSigning = assertstest.NewStoreStack("canonical", nil)
s.mockSnapCmd = testutil.MockCommand(c, "snap", "")
dirs.SetRootDir(c.MkDir())
c.Assert(os.MkdirAll(filepath.Dir(dirs.SnapSystemKeyFile), 0755), IsNil)
s.o = overlord.Mock()
s.state = s.o.State()
db, err := asserts.OpenDatabase(&asserts.DatabaseConfig{
Backstore: asserts.NewMemoryBackstore(),
Trusted: s.storeSigning.Trusted,
})
c.Assert(err, IsNil)
s.db = db
err = db.Add(s.storeSigning.StoreAccountKey(""))
c.Assert(err, IsNil)
s.BaseTest.AddCleanup(snap.MockSanitizePlugsSlots(func(snapInfo *snap.Info) {}))
s.state.Lock()
assertstate.ReplaceDB(s.state, s.db)
s.state.Unlock()
s.privateHookMgr = nil
s.privateMgr = nil
s.extraIfaces = nil
s.extraBackends = nil
s.secBackend = &ifacetest.TestSecurityBackend{}
// TODO: transition this so that we don't load real backends and instead
// just load the test backend here and this is nicely integrated with
// extraBackends above.
s.BaseTest.AddCleanup(ifacestate.MockSecurityBackends([]interfaces.SecurityBackend{s.secBackend}))
buf, restore := logger.MockLogger()
s.BaseTest.AddCleanup(restore)
s.log = buf
}
func (s *interfaceManagerSuite) TearDownTest(c *C) {
s.BaseTest.TearDownTest(c)
s.mockSnapCmd.Restore()
if s.privateMgr != nil {
s.privateMgr.Stop()
}
dirs.SetRootDir("")
}
func (s *interfaceManagerSuite) manager(c *C) *ifacestate.InterfaceManager {
if s.privateMgr == nil {
mgr, err := ifacestate.Manager(s.state, s.hookManager(c), s.extraIfaces, s.extraBackends)
c.Assert(err, IsNil)
ifacestate.AddForeignTaskHandlers(mgr)
s.privateMgr = mgr
s.o.AddManager(mgr)
// ensure the re-generation of security profiles did not
// confuse the tests
s.secBackend.SetupCalls = nil
}
return s.privateMgr
}
func (s *interfaceManagerSuite) hookManager(c *C) *hookstate.HookManager {
if s.privateHookMgr == nil {
mgr, err := hookstate.Manager(s.state)
c.Assert(err, IsNil)
s.privateHookMgr = mgr
s.o.AddManager(mgr)
}
return s.privateHookMgr
}
func (s *interfaceManagerSuite) settle(c *C) {
err := s.o.Settle(5 * time.Second)
c.Assert(err, IsNil)
}
func (s *interfaceManagerSuite) TestSmoke(c *C) {
mgr := s.manager(c)
mgr.Ensure()
mgr.Wait()
}
func (s *interfaceManagerSuite) TestKnownTaskKinds(c *C) {
mgr, err := ifacestate.Manager(s.state, s.hookManager(c), nil, nil)
c.Assert(err, IsNil)
kinds := mgr.KnownTaskKinds()
sort.Strings(kinds)
c.Assert(kinds, DeepEquals, []string{
"auto-connect",
"connect",
"discard-conns",
"disconnect",
"gadget-connect",
"remove-profiles",
"setup-profiles",
"transition-ubuntu-core"})
}
func (s *interfaceManagerSuite) TestRepoAvailable(c *C) {
_ = s.manager(c)
s.state.Lock()
defer s.state.Unlock()
repo := ifacerepo.Get(s.state)
c.Check(repo, FitsTypeOf, &interfaces.Repository{})
}
func (s *interfaceManagerSuite) TestConnectTask(c *C) {
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"}, &ifacetest.TestInterface{InterfaceName: "test2"})
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
_ = s.manager(c)
s.state.Lock()
defer s.state.Unlock()
ts, err := ifacestate.Connect(s.state, "consumer", "plug", "producer", "slot")
c.Assert(err, IsNil)
var hs hookstate.HookSetup
i := 0
task := ts.Tasks()[i]
c.Check(task.Kind(), Equals, "run-hook")
var hookSetup hookstate.HookSetup
err = task.Get("hook-setup", &hookSetup)
c.Assert(err, IsNil)
c.Assert(hookSetup, Equals, hookstate.HookSetup{Snap: "consumer", Hook: "prepare-plug-plug", Optional: true})
i++
task = ts.Tasks()[i]
c.Check(task.Kind(), Equals, "run-hook")
err = task.Get("hook-setup", &hookSetup)
c.Assert(err, IsNil)
c.Assert(hookSetup, Equals, hookstate.HookSetup{Snap: "producer", Hook: "prepare-slot-slot", Optional: true})
i++
task = ts.Tasks()[i]
c.Assert(task.Kind(), Equals, "connect")
var plug interfaces.PlugRef
err = task.Get("plug", &plug)
c.Assert(err, IsNil)
c.Assert(plug.Snap, Equals, "consumer")
c.Assert(plug.Name, Equals, "plug")
var slot interfaces.SlotRef
err = task.Get("slot", &slot)
c.Assert(err, IsNil)
c.Assert(slot.Snap, Equals, "producer")
c.Assert(slot.Name, Equals, "slot")
var autoconnect bool
err = task.Get("auto", &autoconnect)
c.Assert(err, Equals, state.ErrNoState)
c.Assert(autoconnect, Equals, false)
// verify initial attributes are present in connect task
var plugStaticAttrs map[string]interface{}
var plugDynamicAttrs map[string]interface{}
err = task.Get("plug-static", &plugStaticAttrs)
c.Assert(err, IsNil)
c.Assert(plugStaticAttrs, DeepEquals, map[string]interface{}{"attr1": "value1"})
err = task.Get("plug-dynamic", &plugDynamicAttrs)
c.Assert(err, IsNil)
c.Assert(plugDynamicAttrs, DeepEquals, map[string]interface{}{})
var slotStaticAttrs map[string]interface{}
var slotDynamicAttrs map[string]interface{}
err = task.Get("slot-static", &slotStaticAttrs)
c.Assert(err, IsNil)
c.Assert(slotStaticAttrs, DeepEquals, map[string]interface{}{"attr2": "value2"})
err = task.Get("slot-dynamic", &slotDynamicAttrs)
c.Assert(err, IsNil)
c.Assert(slotDynamicAttrs, DeepEquals, map[string]interface{}{})
i++
task = ts.Tasks()[i]
c.Check(task.Kind(), Equals, "run-hook")
err = task.Get("hook-setup", &hs)
c.Assert(err, IsNil)
c.Assert(hs, Equals, hookstate.HookSetup{Snap: "producer", Hook: "connect-slot-slot", Optional: true})
i++
task = ts.Tasks()[i]
c.Check(task.Kind(), Equals, "run-hook")
err = task.Get("hook-setup", &hs)
c.Assert(err, IsNil)
c.Assert(hs, Equals, hookstate.HookSetup{Snap: "consumer", Hook: "connect-plug-plug", Optional: true})
}
func (s *interfaceManagerSuite) testConnectDisconnectConflicts(c *C, f func(*state.State, string, string, string, string) (*state.TaskSet, error), snapName string, otherTaskKind string, expectedErr string) {
s.state.Lock()
defer s.state.Unlock()
chg := s.state.NewChange("other-chg", "...")
t := s.state.NewTask(otherTaskKind, "...")
t.Set("snap-setup", &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: snapName},
})
chg.AddTask(t)
_, err := f(s.state, "consumer", "plug", "producer", "slot")
c.Assert(err, ErrorMatches, expectedErr)
}
func (s *interfaceManagerSuite) TestConnectConflictsPlugSnapOnLinkSnap(c *C) {
s.testConnectDisconnectConflicts(c, ifacestate.Connect, "consumer", "link-snap", `snap "consumer" has "other-chg" change in progress`)
}
func (s *interfaceManagerSuite) TestConnectConflictsPlugSnapOnUnlink(c *C) {
s.testConnectDisconnectConflicts(c, ifacestate.Connect, "consumer", "unlink-snap", `snap "consumer" has "other-chg" change in progress`)
}
func (s *interfaceManagerSuite) TestConnectConflictsSlotSnap(c *C) {
s.testConnectDisconnectConflicts(c, ifacestate.Connect, "producer", "link-snap", `snap "producer" has "other-chg" change in progress`)
}
func (s *interfaceManagerSuite) TestConnectConflictsSlotSnapOnUnlink(c *C) {
s.testConnectDisconnectConflicts(c, ifacestate.Connect, "producer", "unlink-snap", `snap "producer" has "other-chg" change in progress`)
}
func (s *interfaceManagerSuite) TestDisconnectConflictsPlugSnapOnLink(c *C) {
s.testConnectDisconnectConflicts(c, ifacestate.Disconnect, "consumer", "link-snap", `snap "consumer" has "other-chg" change in progress`)
}
func (s *interfaceManagerSuite) TestDisconnectConflictsSlotSnapOnLink(c *C) {
s.testConnectDisconnectConflicts(c, ifacestate.Disconnect, "producer", "link-snap", `snap "producer" has "other-chg" change in progress`)
}
func (s *interfaceManagerSuite) TestConnectDoesntConflict(c *C) {
s.mockIface(c, &ifacetest.TestInterface{InterfaceName: "test"})
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
s.state.Lock()
defer s.state.Unlock()
chg := s.state.NewChange("other-connect", "...")
t := s.state.NewTask("connect", "other connect task")
t.Set("slot", interfaces.SlotRef{Snap: "producer", Name: "slot"})
t.Set("plug", interfaces.PlugRef{Snap: "consumer", Name: "plug"})
chg.AddTask(t)
_, err := ifacestate.Connect(s.state, "consumer", "plug", "producer", "slot")
c.Assert(err, IsNil)
_, err = ifacestate.Disconnect(s.state, "consumer", "plug", "producer", "slot")
c.Assert(err, IsNil)
}
func (s *interfaceManagerSuite) TestAutoconnectDoesntConflictOnInstallingDifferentSnap(c *C) {
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
s.state.Lock()
defer s.state.Unlock()
sup1 := &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "consumer"},
}
sup2 := &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "othersnap"},
}
chg := s.state.NewChange("install", "...")
t := s.state.NewTask("link-snap", "...")
t.Set("snap-setup", sup2)
chg.AddTask(t)
t = s.state.NewTask("auto-connect", "...")
t.Set("snap-setup", sup1)
chg.AddTask(t)
ignore, err := ifacestate.FindSymmetricAutoconnect(s.state, "consumer", "producer", t)
c.Assert(err, IsNil)
c.Assert(ignore, Equals, false)
c.Assert(ifacestate.CheckConnectConflicts(s.state, "consumer", "producer", true), IsNil)
ts, err := ifacestate.ConnectPriv(s.state, "consumer", "plug", "producer", "slot", []string{"auto"})
c.Assert(err, IsNil)
c.Assert(ts.Tasks(), HasLen, 5)
connectTask := ts.Tasks()[2]
c.Assert(connectTask.Kind(), Equals, "connect")
var auto bool
connectTask.Get("auto", &auto)
c.Assert(auto, Equals, true)
}
func (s *interfaceManagerSuite) createAutoconnectChange(c *C, conflictingTask *state.Task) error {
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
s.state.Lock()
defer s.state.Unlock()
chg1 := s.state.NewChange("a change", "...")
conflictingTask.Set("snap-setup", &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "consumer"},
})
chg1.AddTask(conflictingTask)
chg := s.state.NewChange("other-chg", "...")
t2 := s.state.NewTask("auto-connect", "...")
t2.Set("snap-setup", &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "producer"},
})
chg.AddTask(t2)
ignore, err := ifacestate.FindSymmetricAutoconnect(s.state, "consumer", "producer", t2)
c.Assert(err, IsNil)
c.Assert(ignore, Equals, false)
return ifacestate.CheckConnectConflicts(s.state, "consumer", "producer", true)
}
func (s *interfaceManagerSuite) testRetryError(c *C, err error) {
c.Assert(err, NotNil)
c.Assert(err, ErrorMatches, `task should be retried`)
rerr, ok := err.(*state.Retry)
c.Assert(ok, Equals, true)
c.Assert(rerr, NotNil)
}
func (s *interfaceManagerSuite) TestAutoconnectConflictOnUnlink(c *C) {
s.state.Lock()
task := s.state.NewTask("unlink-snap", "")
s.state.Unlock()
err := s.createAutoconnectChange(c, task)
s.testRetryError(c, err)
}
func (s *interfaceManagerSuite) TestAutoconnectConflictOnLink(c *C) {
s.state.Lock()
task := s.state.NewTask("link-snap", "")
s.state.Unlock()
err := s.createAutoconnectChange(c, task)
s.testRetryError(c, err)
}
func (s *interfaceManagerSuite) TestSymmetricAutoconnectIgnore(c *C) {
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
s.state.Lock()
defer s.state.Unlock()
sup1 := &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "consumer"},
}
sup2 := &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "producer"},
}
chg1 := s.state.NewChange("install", "...")
t1 := s.state.NewTask("auto-connect", "...")
t1.Set("snap-setup", sup1)
chg1.AddTask(t1)
chg2 := s.state.NewChange("install", "...")
t2 := s.state.NewTask("auto-connect", "...")
t2.Set("snap-setup", sup2)
chg2.AddTask(t2)
ignore, err := ifacestate.FindSymmetricAutoconnect(s.state, "consumer", "producer", t1)
c.Assert(err, IsNil)
c.Assert(ignore, Equals, true)
ignore, err = ifacestate.FindSymmetricAutoconnect(s.state, "consumer", "producer", t2)
c.Assert(err, IsNil)
c.Assert(ignore, Equals, true)
}
func (s *interfaceManagerSuite) TestAutoconnectConflictOnConnectWithAutoFlag(c *C) {
s.state.Lock()
task := s.state.NewTask("connect", "")
task.Set("slot", interfaces.SlotRef{Snap: "producer", Name: "slot"})
task.Set("plug", interfaces.PlugRef{Snap: "consumer", Name: "plug"})
task.Set("auto", true)
s.state.Unlock()
err := s.createAutoconnectChange(c, task)
c.Assert(err, NotNil)
c.Assert(err, ErrorMatches, `task should be retried`)
}
func (s *interfaceManagerSuite) TestAutoconnectNoConflictOnConnect(c *C) {
// FIXME: flesh this test out once individual connect conflict check is fleshed out
s.state.Lock()
task := s.state.NewTask("connect", "")
task.Set("slot", interfaces.SlotRef{Snap: "producer", Name: "slot"})
task.Set("plug", interfaces.PlugRef{Snap: "consumer", Name: "plug"})
task.Set("auto", false)
s.state.Unlock()
err := s.createAutoconnectChange(c, task)
c.Assert(err, IsNil)
}
func (s *interfaceManagerSuite) TestEnsureProcessesConnectTask(c *C) {
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"}, &ifacetest.TestInterface{InterfaceName: "test2"})
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
_ = s.manager(c)
s.state.Lock()
change := s.state.NewChange("kind", "summary")
ts, err := ifacestate.Connect(s.state, "consumer", "plug", "producer", "slot")
c.Assert(err, IsNil)
c.Assert(ts.Tasks(), HasLen, 5)
ts.Tasks()[2].Set("snap-setup", &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "consumer",
},
})
change.AddAll(ts)
s.state.Unlock()
s.settle(c)
s.state.Lock()
defer s.state.Unlock()
i := 0
c.Assert(change.Err(), IsNil)
task := change.Tasks()[i]
c.Check(task.Kind(), Equals, "run-hook")
c.Check(task.Status(), Equals, state.DoneStatus)
i++
task = change.Tasks()[i]
c.Check(task.Kind(), Equals, "run-hook")
c.Check(task.Status(), Equals, state.DoneStatus)
i++
task = change.Tasks()[i]
c.Check(task.Kind(), Equals, "connect")
c.Check(task.Status(), Equals, state.DoneStatus)
c.Check(change.Status(), Equals, state.DoneStatus)
repo := s.manager(c).Repository()
ifaces := repo.Interfaces()
c.Assert(ifaces.Connections, HasLen, 1)
c.Check(ifaces.Connections, DeepEquals, []*interfaces.ConnRef{{interfaces.PlugRef{Snap: "consumer", Name: "plug"}, interfaces.SlotRef{Snap: "producer", Name: "slot"}}})
}
func (s *interfaceManagerSuite) TestConnectTaskCheckInterfaceMismatch(c *C) {
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"}, &ifacetest.TestInterface{InterfaceName: "test2"})
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
_ = s.manager(c)
s.state.Lock()
change := s.state.NewChange("kind", "summary")
ts, err := ifacestate.Connect(s.state, "consumer", "otherplug", "producer", "slot")
c.Assert(err, IsNil)
c.Assert(ts.Tasks(), HasLen, 5)
c.Check(ts.Tasks()[2].Kind(), Equals, "connect")
ts.Tasks()[2].Set("snap-setup", &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "consumer",
},
})
change.AddAll(ts)
s.state.Unlock()
s.settle(c)
s.state.Lock()
defer s.state.Unlock()
c.Check(change.Err(), ErrorMatches, `cannot perform the following tasks:\n- Connect consumer:otherplug to producer:slot \(cannot connect plug "consumer:otherplug" \(interface "test2"\) to "producer:slot" \(interface "test".*`)
task := change.Tasks()[2]
c.Check(task.Kind(), Equals, "connect")
c.Check(task.Status(), Equals, state.ErrorStatus)
c.Check(change.Status(), Equals, state.ErrorStatus)
}
func (s *interfaceManagerSuite) TestConnectTaskNoSuchSlot(c *C) {
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"}, &ifacetest.TestInterface{InterfaceName: "test2"})
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
_ = s.manager(c)
s.state.Lock()
_ = s.state.NewChange("kind", "summary")
_, err := ifacestate.Connect(s.state, "consumer", "plug", "producer", "whatslot")
c.Assert(err, ErrorMatches, `snap "producer" has no slot named "whatslot"`)
}
func (s *interfaceManagerSuite) TestConnectTaskNoSuchPlug(c *C) {
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"}, &ifacetest.TestInterface{InterfaceName: "test2"})
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
_ = s.manager(c)
s.state.Lock()
_ = s.state.NewChange("kind", "summary")
_, err := ifacestate.Connect(s.state, "consumer", "whatplug", "producer", "slot")
c.Assert(err, ErrorMatches, `snap "consumer" has no plug named "whatplug"`)
}
func (s *interfaceManagerSuite) TestConnectTaskCheckNotAllowed(c *C) {
s.testConnectTaskCheck(c, func() {
s.mockSnapDecl(c, "consumer", "consumer-publisher", nil)
s.mockSnap(c, consumerYaml)
s.mockSnapDecl(c, "producer", "producer-publisher", nil)
s.mockSnap(c, producerYaml)
}, func(change *state.Change) {
c.Check(change.Err(), ErrorMatches, `(?s).*connection not allowed by slot rule of interface "test".*`)
c.Check(change.Status(), Equals, state.ErrorStatus)
repo := s.manager(c).Repository()
ifaces := repo.Interfaces()
c.Check(ifaces.Connections, HasLen, 0)
})
}
func (s *interfaceManagerSuite) TestConnectTaskCheckNotAllowedButNoDecl(c *C) {
s.testConnectTaskCheck(c, func() {
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
}, func(change *state.Change) {
c.Check(change.Err(), IsNil)
c.Check(change.Status(), Equals, state.DoneStatus)
repo := s.manager(c).Repository()
ifaces := repo.Interfaces()
c.Assert(ifaces.Connections, HasLen, 1)
c.Check(ifaces.Connections, DeepEquals, []*interfaces.ConnRef{{interfaces.PlugRef{Snap: "consumer", Name: "plug"}, interfaces.SlotRef{Snap: "producer", Name: "slot"}}})
})
}
func (s *interfaceManagerSuite) TestConnectTaskCheckAllowed(c *C) {
s.testConnectTaskCheck(c, func() {
s.mockSnapDecl(c, "consumer", "one-publisher", nil)
s.mockSnap(c, consumerYaml)
s.mockSnapDecl(c, "producer", "one-publisher", nil)
s.mockSnap(c, producerYaml)
}, func(change *state.Change) {
c.Assert(change.Err(), IsNil)
c.Check(change.Status(), Equals, state.DoneStatus)
repo := s.manager(c).Repository()
ifaces := repo.Interfaces()
c.Assert(ifaces.Connections, HasLen, 1)
c.Check(ifaces.Connections, DeepEquals, []*interfaces.ConnRef{{interfaces.PlugRef{Snap: "consumer", Name: "plug"}, interfaces.SlotRef{Snap: "producer", Name: "slot"}}})
})
}
func (s *interfaceManagerSuite) testConnectTaskCheck(c *C, setup func(), check func(*state.Change)) {
restore := assertstest.MockBuiltinBaseDeclaration([]byte(`
type: base-declaration
authority-id: canonical
series: 16
slots:
test:
allow-connection:
plug-publisher-id:
- $SLOT_PUBLISHER_ID
`))
defer restore()
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"}, &ifacetest.TestInterface{InterfaceName: "test2"})
setup()
_ = s.manager(c)
s.state.Lock()
change := s.state.NewChange("kind", "summary")
ts, err := ifacestate.Connect(s.state, "consumer", "plug", "producer", "slot")
c.Assert(err, IsNil)
c.Assert(ts.Tasks(), HasLen, 5)
ts.Tasks()[0].Set("snap-setup", &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "consumer",
},
})
change.AddAll(ts)
s.state.Unlock()
s.settle(c)
s.state.Lock()
defer s.state.Unlock()
check(change)
}
func (s *interfaceManagerSuite) TestDisconnectTask(c *C) {
s.state.Lock()
defer s.state.Unlock()
ts, err := ifacestate.Disconnect(s.state, "consumer", "plug", "producer", "slot")
c.Assert(err, IsNil)
task := ts.Tasks()[0]
c.Assert(task.Kind(), Equals, "disconnect")
var plug interfaces.PlugRef
err = task.Get("plug", &plug)
c.Assert(err, IsNil)
c.Assert(plug.Snap, Equals, "consumer")
c.Assert(plug.Name, Equals, "plug")
var slot interfaces.SlotRef
err = task.Get("slot", &slot)
c.Assert(err, IsNil)
c.Assert(slot.Snap, Equals, "producer")
c.Assert(slot.Name, Equals, "slot")
}
// Disconnect works when both plug and slot are specified
func (s *interfaceManagerSuite) TestDisconnectFull(c *C) {
s.testDisconnect(c, "consumer", "plug", "producer", "slot")
}
func (s *interfaceManagerSuite) testDisconnect(c *C, plugSnap, plugName, slotSnap, slotName string) {
// Put two snaps in place They consumer has an plug that can be connected
// to slot on the producer.
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"}, &ifacetest.TestInterface{InterfaceName: "test2"})
s.mockSnap(c, consumerYaml)
s.mockSnap(c, producerYaml)
// Put a connection in the state so that it automatically gets set up when
// we create the manager.
s.state.Lock()
s.state.Set("conns", map[string]interface{}{
"consumer:plug producer:slot": map[string]interface{}{"interface": "test"},
})
s.state.Unlock()
// Initialize the manager. This registers both snaps and reloads the connection.
mgr := s.manager(c)
// Run the disconnect task and let it finish.
s.state.Lock()
change := s.state.NewChange("disconnect", "...")
ts, err := ifacestate.Disconnect(s.state, plugSnap, plugName, slotSnap, slotName)
ts.Tasks()[0].Set("snap-setup", &snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "consumer",
},
})
c.Assert(err, IsNil)
change.AddAll(ts)
s.state.Unlock()
mgr.Ensure()
mgr.Wait()
s.state.Lock()
defer s.state.Unlock()
// Ensure that the task succeeded.
c.Assert(change.Err(), IsNil)
task := change.Tasks()[0]
c.Check(task.Kind(), Equals, "disconnect")
c.Check(task.Status(), Equals, state.DoneStatus)
c.Check(change.Status(), Equals, state.DoneStatus)
// Ensure that the connection has been removed from the state
var conns map[string]interface{}
err = s.state.Get("conns", &conns)
c.Assert(err, IsNil)
c.Check(conns, HasLen, 0)
// Ensure that the connection has been removed from the repository
repo := mgr.Repository()
ifaces := repo.Interfaces()
c.Assert(ifaces.Connections, HasLen, 0)
// Ensure that the backend was used to setup security of both snaps
c.Assert(s.secBackend.SetupCalls, HasLen, 2)
c.Assert(s.secBackend.RemoveCalls, HasLen, 0)
c.Check(s.secBackend.SetupCalls[0].SnapInfo.InstanceName(), Equals, "consumer")
c.Check(s.secBackend.SetupCalls[1].SnapInfo.InstanceName(), Equals, "producer")
c.Check(s.secBackend.SetupCalls[0].Options, Equals, interfaces.ConfinementOptions{})
c.Check(s.secBackend.SetupCalls[1].Options, Equals, interfaces.ConfinementOptions{})
}
func (s *interfaceManagerSuite) TestStaleConnectionsIgnoredInReloadConnections(c *C) {
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"})
// Put a stray connection in the state so that it automatically gets set up
// when we create the manager.
s.state.Lock()
s.state.Set("conns", map[string]interface{}{
"consumer:plug producer:slot": map[string]interface{}{"interface": "test"},
})
s.state.Unlock()
restore := ifacestate.MockRemoveStaleConnections(func(s *state.State) error { return nil })
defer restore()
mgr := s.manager(c)
s.state.Lock()
defer s.state.Unlock()
// Ensure that nothing got connected.
repo := mgr.Repository()
ifaces := repo.Interfaces()
c.Assert(ifaces.Connections, HasLen, 0)
// Ensure that nothing to setup.
c.Assert(s.secBackend.SetupCalls, HasLen, 0)
c.Assert(s.secBackend.RemoveCalls, HasLen, 0)
// Ensure that nothing, crucially, got logged about that connection.
// We still have an error logged about the system key but this is just
// a bit of test mocking missing.
logLines := strings.Split(s.log.String(), "\n")
c.Assert(logLines, HasLen, 2)
c.Assert(logLines[0], testutil.Contains, "error trying to compare the snap system key:")
c.Assert(logLines[1], Equals, "")
}
func (s *interfaceManagerSuite) TestStaleConnectionsRemoved(c *C) {
s.mockIfaces(c, &ifacetest.TestInterface{InterfaceName: "test"})
s.state.Lock()
// Add stale connection to the state
s.state.Set("conns", map[string]interface{}{
"consumer:plug producer:slot": map[string]interface{}{"interface": "test"},
})
s.state.Unlock()
// Create the manager, this removes stale connections
mgr := s.manager(c)
s.state.Lock()
defer s.state.Unlock()
// Ensure that nothing got connected and connection was removed
var conns map[string]interface{}
err := s.state.Get("conns", &conns)
c.Assert(err, IsNil)
c.Check(conns, HasLen, 0)
repo := mgr.Repository()
ifaces := repo.Interfaces()
c.Assert(ifaces.Connections, HasLen, 0)
}
func (s *interfaceManagerSuite) mockIface(c *C, iface interfaces.Interface) {
s.extraIfaces = append(s.extraIfaces, iface)
}
func (s *interfaceManagerSuite) mockIfaces(c *C, ifaces ...interfaces.Interface) {
s.extraIfaces = append(s.extraIfaces, ifaces...)
}
func (s *interfaceManagerSuite) mockSnapDecl(c *C, name, publisher string, extraHeaders map[string]interface{}) {
_, err := s.db.Find(asserts.AccountType, map[string]string{
"account-id": publisher,
})
if asserts.IsNotFound(err) {
acct := assertstest.NewAccount(s.storeSigning, publisher, map[string]interface{}{
"account-id": publisher,
}, "")
err = s.db.Add(acct)
}
c.Assert(err, IsNil)
headers := map[string]interface{}{
"series": "16",
"snap-name": name,
"publisher-id": publisher,
"snap-id": (name + strings.Repeat("id", 16))[:32],
"timestamp": time.Now().Format(time.RFC3339),
}
for k, v := range extraHeaders {
headers[k] = v
}
snapDecl, err := s.storeSigning.Sign(asserts.SnapDeclarationType, headers, nil, "")
c.Assert(err, IsNil)
err = s.db.Add(snapDecl)
c.Assert(err, IsNil)
}
func (s *interfaceManagerSuite) mockSnap(c *C, yamlText string) *snap.Info {
sideInfo := &snap.SideInfo{
Revision: snap.R(1),
}
snapInfo := snaptest.MockSnap(c, yamlText, sideInfo)
sideInfo.RealName = snapInfo.SnapName()
a, err := s.db.FindMany(asserts.SnapDeclarationType, map[string]string{
"snap-name": sideInfo.RealName,
})
if err == nil {
decl := a[0].(*asserts.SnapDeclaration)
snapInfo.SnapID = decl.SnapID()
sideInfo.SnapID = decl.SnapID()
} else if asserts.IsNotFound(err) {
err = nil
}
c.Assert(err, IsNil)
s.state.Lock()
defer s.state.Unlock()
// Put a side info into the state
snapstate.Set(s.state, snapInfo.InstanceName(), &snapstate.SnapState{
Active: true,
Sequence: []*snap.SideInfo{sideInfo},
Current: sideInfo.Revision,
SnapType: string(snapInfo.Type),
})
return snapInfo
}
func (s *interfaceManagerSuite) mockUpdatedSnap(c *C, yamlText string, revision int) *snap.Info {
sideInfo := &snap.SideInfo{Revision: snap.R(revision)}
snapInfo := snaptest.MockSnap(c, yamlText, sideInfo)
sideInfo.RealName = snapInfo.SnapName()
s.state.Lock()
defer s.state.Unlock()
// Put the new revision (stored in SideInfo) into the state
var snapst snapstate.SnapState
err := snapstate.Get(s.state, snapInfo.InstanceName(), &snapst)
c.Assert(err, IsNil)
snapst.Sequence = append(snapst.Sequence, sideInfo)
snapstate.Set(s.state, snapInfo.InstanceName(), &snapst)
return snapInfo
}
func (s *interfaceManagerSuite) addSetupSnapSecurityChange(c *C, snapsup *snapstate.SnapSetup) *state.Change {
s.state.Lock()
defer s.state.Unlock()
change := s.state.NewChange("test", "")
task1 := s.state.NewTask("setup-profiles", "")
task1.Set("snap-setup", snapsup)
change.AddTask(task1)
task2 := s.state.NewTask("auto-connect", "")
task2.Set("snap-setup", snapsup)
task2.WaitFor(task1)
change.AddTask(task2)
return change
}
func (s *interfaceManagerSuite) addRemoveSnapSecurityChange(c *C, snapName string) *state.Change {
s.state.Lock()
defer s.state.Unlock()
task := s.state.NewTask("remove-profiles", "")
snapsup := snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: snapName,
},
}
task.Set("snap-setup", snapsup)
taskset := state.NewTaskSet(task)
change := s.state.NewChange("test", "")
change.AddAll(taskset)
return change
}
func (s *interfaceManagerSuite) addDiscardConnsChange(c *C, snapName string) *state.Change {
s.state.Lock()
defer s.state.Unlock()
task := s.state.NewTask("discard-conns", "")
snapsup := snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: snapName,
},
}
task.Set("snap-setup", snapsup)
taskset := state.NewTaskSet(task)
change := s.state.NewChange("test", "")
change.AddAll(taskset)
return change
}
var ubuntuCoreSnapYaml = `
name: ubuntu-core
version: 1
type: os
`
var coreSnapYaml = `
name: core
version: 1
type: os
`
var sampleSnapYaml = `
name: snap
version: 1
apps:
app:
command: foo
plugs:
network:
interface: network
`
var consumerYaml = `
name: consumer
version: 1
plugs:
plug:
interface: test
attr1: value1
otherplug:
interface: test2
`
var consumer2Yaml = `
name: consumer2