github.com/kubiko/snapd@v0.0.0-20201013125620-d4f3094d9ddf/interfaces/builtin/snapd_control.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2016 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
    21  
    22  import (
    23  	"fmt"
    24  
    25  	"github.com/snapcore/snapd/snap"
    26  )
    27  
    28  const snapdControlSummary = `allows communicating with snapd`
    29  
    30  const snapdControlBaseDeclarationPlugs = `
    31    snapd-control:
    32      allow-installation: false
    33      deny-auto-connection: true
    34  `
    35  
    36  const snapdControlBaseDeclarationSlots = `
    37    snapd-control:
    38      allow-installation:
    39        slot-snap-type:
    40          - core
    41      deny-auto-connection: true
    42  `
    43  
    44  const snapdControlConnectedPlugAppArmor = `
    45  # Description: Can manage snaps via snapd.
    46  
    47  /run/snapd.socket rw,
    48  `
    49  
    50  type snapControlInterface struct {
    51  	commonInterface
    52  }
    53  
    54  func (iface *snapControlInterface) BeforePreparePlug(plug *snap.PlugInfo) error {
    55  	if refreshSchedule, ok := plug.Attrs["refresh-schedule"].(string); ok {
    56  		if refreshSchedule != "managed" {
    57  			return fmt.Errorf("unsupported refresh-schedule value: %q", refreshSchedule)
    58  		}
    59  	}
    60  
    61  	return nil
    62  }
    63  
    64  func init() {
    65  	registerIface(&snapControlInterface{commonInterface{
    66  		name:                  "snapd-control",
    67  		summary:               snapdControlSummary,
    68  		implicitOnCore:        true,
    69  		implicitOnClassic:     true,
    70  		baseDeclarationPlugs:  snapdControlBaseDeclarationPlugs,
    71  		baseDeclarationSlots:  snapdControlBaseDeclarationSlots,
    72  		connectedPlugAppArmor: snapdControlConnectedPlugAppArmor,
    73  	}})
    74  }