github.com/bugraaydogar/snapd@v0.0.0-20210315170335-8c70bb858939/interfaces/builtin/system_backup.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
    21  
    22  const systemBackupSummary = `allows read-only access to the entire system for backups`
    23  
    24  const systemBackupBaseDeclarationSlots = `
    25    system-backup:
    26      allow-installation:
    27        slot-snap-type:
    28          - core
    29      deny-auto-connection: true
    30  `
    31  
    32  const systemBackupConnectedPlugAppArmor = `
    33  # Description: Allow read-only access to the entire system
    34  capability dac_read_search,
    35  
    36  # read access to everything except items under /dev, /sys and /proc
    37  /{,var/lib/snapd/hostfs/}[^dsp]** r,
    38  /{,var/lib/snapd/hostfs/}{d[^e],s[^y],p[^r]}** r,
    39  /{,var/lib/snapd/hostfs/}{de[^v],sy[^s],pr[^o]}** r,
    40  /{,var/lib/snapd/hostfs/}{dev[^/],sys[^/],pro[^c]}** r,
    41  /{,var/lib/snapd/hostfs/}proc[^/]** r,
    42  
    43  # Allow a few not caught in the above
    44  /{,var/lib/snapd/hostfs/}{d,de,p,pr,pro,s,sy}/** r,
    45  /{,var/lib/snapd/hostfs/}{d,de,dev,p,pr,pro,proc,s,sy,sys}{,/} r,
    46  `
    47  
    48  type systemBackupInterface struct {
    49  	commonInterface
    50  }
    51  
    52  func init() {
    53  	registerIface(&systemBackupInterface{commonInterface{
    54  		name:                  "system-backup",
    55  		summary:               systemBackupSummary,
    56  		implicitOnCore:        true,
    57  		implicitOnClassic:     true,
    58  		baseDeclarationSlots:  systemBackupBaseDeclarationSlots,
    59  		connectedPlugAppArmor: systemBackupConnectedPlugAppArmor,
    60  	}})
    61  }