# vim:syntax=apparmor
#include <tunables/global>

profile tcpdump /usr/bin/tcpdump {
  #include <abstractions/base>
  #include <abstractions/nameservice>
  #include <abstractions/user-tmp>

  capability net_raw,
  capability setuid,
  capability setgid,
  capability dac_override,
  capability chown,
  network raw,
  network packet,

  # for -D
  @{PROC}/bus/usb/ r,
  @{PROC}/bus/usb/** r,

  # for finding an interface
  /dev/ r,
  @{PROC}/[0-9]*/net/dev r,
  /sys/bus/usb/devices/ r,
  /sys/class/net/ r,
  /sys/devices/**/net/** r,

  # for -j
  capability net_admin,

  # for tracing USB bus, which libpcap supports
  /dev/usbmon* r,
  /dev/bus/usb/ r,
  /dev/bus/usb/** r,

  # for init_etherarray(), with -e
  /etc/ethers r,

  # for USB probing (see libpcap-1.1.x/pcap-usb-linux.c:probe_devices())
  /dev/bus/usb/**/[0-9]* w,

  # for -z
  /{usr/,}bin/gzip ixr,
  /{usr/,}bin/bzip2 ixr,

  # for -F and -w
  audit deny @{HOME}/.* mrwkl,
  audit deny @{HOME}/.*/ rw,
  audit deny @{HOME}/.*/** mrwkl,
  audit deny @{HOME}/bin/ rw,
  audit deny @{HOME}/bin/** mrwkl,
  owner @{HOME}/ r,
  owner @{HOME}/** rw,

  # for -r, -F and -w
  /**.[pP][cC][aA][pP] rw,
  /**.[pP][cC][aA][pP][nN][gG] rw,
  /**.[cC][aA][pP] rw,
  # -W adds a numerical suffix
  /**.[pP][cC][aA][pP][0-9]* rw,
  /**.[pP][cC][aA][pP][nN][gG][0-9]* rw,
  /**.[cC][aA][pP][0-9]* rw,

  # for convenience with -r (ie, read pcap files from other sources)
  /var/log/snort/*log* r,

  /usr/bin/tcpdump mr,

  # allow printing to stdout/stderr when inside a container
  # (LP: #1667016)
  /dev/pts/* rw,

  # Site-specific additions and overrides. See local/README for details.
  #include <local/usr.bin.tcpdump>
}