github.com/bugraaydogar/snapd@v0.0.0-20210315170335-8c70bb858939/interfaces/builtin/netlink_connector.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 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 netlinkConnectorSummary = `allows communication through the kernel netlink connector`
    23  
    24  const netlinkConnectorBaseDeclarationSlots = `
    25    netlink-connector:
    26      allow-installation:
    27        slot-snap-type:
    28          - core
    29      deny-auto-connection: true
    30  `
    31  
    32  const netlinkConnectorConnectedPlugSecComp = `
    33  # Description: Can use netlink to communicate with kernel connector. Because
    34  # NETLINK_CONNECTOR is not finely mediated and app-specific, use of this
    35  # interface allows communications via all netlink connectors.
    36  # https://github.com/torvalds/linux/blob/master/Documentation/connector/connector.txt
    37  bind
    38  socket AF_NETLINK - NETLINK_CONNECTOR
    39  `
    40  
    41  const netlinkConnectorConnectedPlugAppArmor = `
    42  # Description: Can use netlink to communicate with kernel connector. Because
    43  # NETLINK_CONNECTOR is not finely mediated and app-specific, use of this
    44  # interface allows communications via all netlink connectors.
    45  # https://github.com/torvalds/linux/blob/master/Documentation/connector/connector.txt
    46  network netlink,
    47  # CAP_NET_ADMIN required per 'man 7 netlink'
    48  capability net_admin,
    49  `
    50  
    51  func init() {
    52  	registerIface(&commonInterface{
    53  		name:                  "netlink-connector",
    54  		summary:               netlinkConnectorSummary,
    55  		implicitOnCore:        true,
    56  		implicitOnClassic:     true,
    57  		baseDeclarationSlots:  netlinkConnectorBaseDeclarationSlots,
    58  		connectedPlugSecComp:  netlinkConnectorConnectedPlugSecComp,
    59  		connectedPlugAppArmor: netlinkConnectorConnectedPlugAppArmor,
    60  	})
    61  }