apparmor for /sbin/dhclient

sbin.dhclient

# vim:syntax=apparmor
# Last Modified: Fri Jul 17 11:46:19 2009
# Author: Jamie Strandboge <jamie@canonical.com>
#include <tunables/global>

/sbin/dhclient {
  #include <abstractions/base>
  #include <abstractions/nameservice>

  capability net_bind_service,
  capability net_raw,
  capability sys_module,
  capability dac_override,
  capability net_admin,

  network packet,
  network raw,

  @{PROC}/[0-9]*/net/ r,
  @{PROC}/[0-9]*/net/** r,

  /sbin/dhclient mr,
  # LP: #1197484 and LP: #1202203 - why is this needed? :(
  /bin/bash mr,

  /etc/dhclient.conf r,
  /etc/dhcp/ r,
  /etc/dhcp/** r,

  /var/lib/dhcp{,3}/dhclient* lrw,
  /{,var/}run/dhclient*.pid lrw,
  /{,var/}run/dhclient*.lease* lrw,

  # NetworkManager
  /{,var/}run/nm*conf r,
  /{,var/}run/sendsigs.omit.d/network-manager.dhclient*.pid lrw,
  /var/lib/NetworkManager/dhclient*.conf lrw,
  /var/lib/NetworkManager/dhclient*.lease* lrw,

  # connman
  /{,var/}run/connman/dhclient*.pid lrw,
  /{,var/}run/connman/dhclient*.leases lrw,

  # synce-hal
  /usr/share/synce-hal/dhclient.conf r,

  # if there is a custom script, let it run unconfined
  /etc/dhcp/dhclient-script Uxr,

  # The dhclient-script shell script sources other shell scripts rather than
  # executing them, so we can't just use a separate profile for dhclient-script
  # with 'Uxr' on the hook scripts. However, for the long-running dhclient3
  # daemon to run arbitrary code via /sbin/dhclient-script, it would need to be
  # able to subvert dhclient-script or write to the hooks.d directories. As
  # such, if the dhclient3 daemon is subverted, this effectively limits it to
  # only being able to run the hooks scripts.
  /sbin/dhclient-script                           Uxr,

  # Run the ELF executables under their own unrestricted profiles
  /usr/lib/NetworkManager/nm-dhcp-client.action   Pxrm,
  /usr/lib/connman/scripts/dhclient-script        Pxrm,

  # Site-specific additions and overrides. See local/README for details.
  #include <local/sbin.dhclient>
}

/usr/lib/NetworkManager/nm-dhcp-client.action {
  #include <abstractions/base>
  #include <abstractions/dbus>
  /usr/lib/NetworkManager/nm-dhcp-client.action mr,

  /var/lib/NetworkManager/*lease r,
}

/usr/lib/connman/scripts/dhclient-script {
  #include <abstractions/base>
  #include <abstractions/dbus>
  /usr/lib/connman/scripts/dhclient-script      mr,
}