github.com/bugraaydogar/snapd@v0.0.0-20210315170335-8c70bb858939/interfaces/builtin/camera.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 cameraSummary = `allows access to all cameras`
    23  
    24  const cameraBaseDeclarationSlots = `
    25    camera:
    26      allow-installation:
    27        slot-snap-type:
    28          - core
    29      deny-auto-connection: true
    30  `
    31  
    32  const cameraConnectedPlugAppArmor = `
    33  # Until we have proper device assignment, allow access to all cameras
    34  /dev/video[0-9]* rw,
    35  
    36  # VideoCore cameras (shared device with VideoCore/EGL)
    37  /dev/vchiq rw,
    38  
    39  # Allow detection of cameras. Leaks plugged in USB device info
    40  /sys/bus/usb/devices/ r,
    41  /sys/devices/pci**/usb*/**/busnum r,
    42  /sys/devices/pci**/usb*/**/devnum r,
    43  /sys/devices/pci**/usb*/**/idVendor r,
    44  /sys/devices/pci**/usb*/**/idProduct r,
    45  /sys/devices/pci**/usb*/**/interface r,
    46  /sys/devices/pci**/usb*/**/modalias r,
    47  /sys/devices/pci**/usb*/**/speed r,
    48  /run/udev/data/c81:[0-9]* r, # video4linux (/dev/video*, etc)
    49  /run/udev/data/+usb:* r,
    50  /sys/class/video4linux/ r,
    51  /sys/devices/pci**/usb*/**/video4linux/** r,
    52  `
    53  
    54  var cameraConnectedPlugUDev = []string{
    55  	`KERNEL=="video[0-9]*"`,
    56  	`KERNEL=="vchiq"`,
    57  }
    58  
    59  func init() {
    60  	registerIface(&commonInterface{
    61  		name:                  "camera",
    62  		summary:               cameraSummary,
    63  		implicitOnCore:        true,
    64  		implicitOnClassic:     true,
    65  		baseDeclarationSlots:  cameraBaseDeclarationSlots,
    66  		connectedPlugAppArmor: cameraConnectedPlugAppArmor,
    67  		connectedPlugUDev:     cameraConnectedPlugUDev,
    68  	})
    69  }