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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2022 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 builtin_test
import (
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/interfaces"
"github.com/snapcore/snapd/interfaces/apparmor"
"github.com/snapcore/snapd/interfaces/builtin"
"github.com/snapcore/snapd/interfaces/seccomp"
apparmor_sandbox "github.com/snapcore/snapd/sandbox/apparmor"
"github.com/snapcore/snapd/snap"
"github.com/snapcore/snapd/testutil"
)
const plugSnapInfoYaml = `name: consumer
version: 0
apps:
app:
command: foo
plugs: [userns]
`
const userNSCoreYaml = `name: core
version: 0
type: os
slots:
userns:
`
type UserNSInterfaceSuite struct {
iface interfaces.Interface
slotInfo *snap.SlotInfo
slot *interfaces.ConnectedSlot
plugInfo *snap.PlugInfo
plug *interfaces.ConnectedPlug
}
var _ = Suite(&UserNSInterfaceSuite{
iface: builtin.MustInterface("userns"),
})
func (s *UserNSInterfaceSuite) SetUpTest(c *C) {
s.plug, s.plugInfo = MockConnectedPlug(c, plugSnapInfoYaml, nil, "userns")
s.slot, s.slotInfo = MockConnectedSlot(c, userNSCoreYaml, nil, "userns")
}
func (s *UserNSInterfaceSuite) TestName(c *C) {
c.Assert(s.iface.Name(), Equals, "userns")
}
func (s *UserNSInterfaceSuite) TestSanitizePlug(c *C) {
c.Assert(interfaces.BeforePreparePlug(s.iface, s.plugInfo), IsNil)
}
func (s *UserNSInterfaceSuite) TestNoAppArmor(c *C) {
// Ensure that the interface does not fail if AppArmor is unsupported
restore := apparmor_sandbox.MockLevel(apparmor_sandbox.Unsupported)
defer restore()
c.Check(interfaces.BeforePreparePlug(s.iface, s.plugInfo), IsNil)
}
func (s *UserNSInterfaceSuite) TestFeatureDetection(c *C) {
// Ensure that the interface does not fail if the userns feature is not present
restore := apparmor_sandbox.MockFeatures(nil, nil, nil, nil)
defer restore()
c.Check(interfaces.BeforePreparePlug(s.iface, s.plugInfo), IsNil)
}
func (s *UserNSInterfaceSuite) TestAppArmorSpec(c *C) {
appSet, err := interfaces.NewSnapAppSet(s.plug.Snap(), nil)
c.Assert(err, IsNil)
spec := apparmor.NewSpecification(appSet)
restore := apparmor_sandbox.MockFeatures(nil, nil, []string{"userns"}, nil)
defer restore()
c.Assert(spec.AddConnectedPlug(s.iface, s.plug, s.slot), IsNil)
c.Assert(spec.SecurityTags(), DeepEquals, []string{"snap.consumer.app"})
c.Assert(spec.SnippetForTag("snap.consumer.app"), testutil.Contains, "userns,\n")
}
func (s *UserNSInterfaceSuite) TestSeccompSpec(c *C) {
appSet, err := interfaces.NewSnapAppSet(s.plug.Snap(), nil)
c.Assert(err, IsNil)
spec := seccomp.NewSpecification(appSet)
c.Assert(spec.AddConnectedPlug(s.iface, s.plug, s.slot), IsNil)
c.Assert(spec.SecurityTags(), DeepEquals, []string{"snap.consumer.app"})
c.Assert(spec.SnippetForTag("snap.consumer.app"), testutil.Contains, "unshare\n")
}
func (s *UserNSInterfaceSuite) TestInterfaces(c *C) {
c.Check(builtin.Interfaces(), testutil.DeepContains, s.iface)
}
func (s *UserNSInterfaceSuite) TestAutoConnect(c *C) {
c.Assert(s.iface.AutoConnect(nil, nil), Equals, true)
}
func (s *UserNSInterfaceSuite) TestStaticInfo(c *C) {
si := interfaces.StaticInfoOf(s.iface)
c.Check(si.ImplicitOnCore, Equals, true)
c.Check(si.ImplicitOnClassic, Equals, true)
c.Check(si.Summary, Equals, `allows the ability to use user namespaces`)
}
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