github.com/rigado/snapd@v2.42.5-go-mod+incompatible/interfaces/builtin/physical_memory_observe.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2016-2017 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 physicalMemoryObserveSummary = `allows read access to all physical memory`
    23  
    24  const physicalMemoryObserveBaseDeclarationSlots = `
    25    physical-memory-observe:
    26      allow-installation:
    27        slot-snap-type:
    28          - core
    29      deny-auto-connection: true
    30  `
    31  
    32  const physicalMemoryObserveConnectedPlugAppArmor = `
    33  # Description: With kernels with STRICT_DEVMEM=n, read-only access to all physical
    34  # memory. With STRICT_DEVMEM=y, allow reading /dev/mem for read-only
    35  # access to architecture-specific subset of the physical address (eg, PCI,
    36  # space, BIOS code and data regions on x86, etc).
    37  /dev/mem r,
    38  `
    39  
    40  var physicalMemoryObserveConnectedPlugUDev = []string{`KERNEL=="mem"`}
    41  
    42  func init() {
    43  	registerIface(&commonInterface{
    44  		name:                  "physical-memory-observe",
    45  		summary:               physicalMemoryObserveSummary,
    46  		implicitOnCore:        true,
    47  		implicitOnClassic:     true,
    48  		baseDeclarationSlots:  physicalMemoryObserveBaseDeclarationSlots,
    49  		connectedPlugAppArmor: physicalMemoryObserveConnectedPlugAppArmor,
    50  		connectedPlugUDev:     physicalMemoryObserveConnectedPlugUDev,
    51  		reservedForOS:         true,
    52  	})
    53  }