# Author: Jamie Strandboge <jamie@canonical.com>
#include <tunables/global>

# We need 'flags=(attach_disconnected)' in newer chromium versions
/usr/lib/chromium/chromium flags=(attach_disconnected) {
  #include <abstractions/audio>
  #include <abstractions/cups-client>
  #include <abstractions/dbus-session>
  #include <abstractions/gnome>
  #include <abstractions/ibus>
  #include <abstractions/nameservice>
  #include <abstractions/user-tmp>

  # This include specifies which ubuntu-browsers.d abstractions to use. Eg, if
  # you want access to productivity applications, adjust the following file
  # accordingly.
  ##include <abstractions/ubuntu-browsers.d/chromium-browser>

  # Networking
  network inet stream,
  network inet6 stream,
  @{PROC}/[0-9]*/net/if_inet6 r,
  @{PROC}/[0-9]*/net/ipv6_route r,

  @{PROC}/sys/net/ipv4/tcp_fastopen r,

  # Should maybe be in abstractions
  /etc/mime.types r,
  /etc/mailcap r,
  /etc/mtab r,
  /etc/xdg/xubuntu/applications/defaults.list r,
  owner @{HOME}/.local/share/applications/defaults.list r,
  owner @{HOME}/.local/share/applications/mimeinfo.cache r,

  @{PROC}/[0-9]*/fd/ r,
  @{PROC}/filesystems r,
  @{PROC}/ r,
  @{PROC}/[0-9]*/task/ r,
  @{PROC}/[0-9]*/task/[0-9]*/stat r,
  owner @{PROC}/[0-9]*/cmdline r,
  owner @{PROC}/[0-9]*/io r,
  @{PROC}/[0-9]*/smaps r,
  owner @{PROC}/[0-9]*/stat r,
  @{PROC}/[0-9]*/statm r,
  owner @{PROC}/[0-9]*/status r,
  deny @{PROC}/[0-9]*/oom_{,score_}adj w,
  @{PROC}/sys/kernel/yama/ptrace_scope r,

  # Newer chromium needs these now
  /etc/udev/udev.conf r,
  /sys/devices/system/cpu/ r,
  /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_max_freq r,
  /sys/bus/pci/devices/ r,
  /sys/devices/pci[0-9]*/**/class r,
  /sys/devices/pci[0-9]*/**/device r,
  /sys/devices/pci[0-9]*/**/irq r,
  /sys/devices/pci[0-9]*/**/resource r,
  /sys/devices/pci[0-9]*/**/vendor r,
  /sys/devices/pci[0-9]*/**/removable r,
  /sys/devices/pci[0-9]*/**/uevent r,
  /sys/devices/pci[0-9]*/**/block/**/size r,
  /sys/devices/virtual/block/**/removable r,
  /sys/devices/virtual/block/**/uevent r,
  /sys/devices/virtual/block/**/size r,
  # This is requested, but doesn't seem to actually be needed so deny for now
  deny /run/udev/data/** r,

  # Needed for the crash reporter
  owner @{PROC}/[0-9]*/auxv r,

  # chromium mmaps all kinds of things for speed.
  /etc/passwd m,
  /usr/share/fonts/truetype/**/*.tt[cf] m,
  /usr/share/fonts/opentype/**/*.tt[cf] m,
  /usr/share/fonts/**/*.pfb m,
  /usr/share/mime/mime.cache m,
  /usr/share/icons/**/*.cache m,
  owner /{dev,run}/shm/pulse-shm* m,
  owner @{HOME}/.local/share/mime/mime.cache m,
  owner /tmp/** m,

  @{PROC}/sys/kernel/shmmax r,
  owner /{dev,run}/shm/{,.}org.chromium.* mrw,

  /usr/lib/chromium/*.pak mr,
  /usr/lib/chromium/locales/* mr,

  # Noisy
  deny /usr/lib/chromium/** w,

  # Allow ptracing ourselves
  ptrace (trace) peer=@{profile_name},

  # Make browsing directories work
  #/ r,
  #/**/ r,

  # Allow access to documentation and other files the user may want to look
  # at in /usr
  /usr/{include,share,src}** r,

  # Default profile allows downloads to ~/Downloads and uploads from ~/Public
  # geht nicht
  # deny /home/** r,
  #deny @{HOME}/** r,
  owner @{HOME}/Public/ r,
  owner @{HOME}/Public/* r,
  owner @{HOME}/Downloads/ r,
  owner @{HOME}/Downloads/* rw,

  # For migration
  #owner @{HOME}/.mozilla/firefox/profiles.ini r,
  #owner @{HOME}/.mozilla/firefox/*/prefs.js r,

  # Helpers
  /usr/bin/xdg-open ixr,
  /usr/bin/gnome-open ixr,
  /usr/bin/gvfs-open ixr,
  /usr/bin/kdialog ixr,
  # TODO: xfce

  # Importing firefox settings (requires 'r' access to @{HOME}/.mozilla/**
  # which is provided by abstractions/ubuntu-browsers.d/user-files).
  /etc/firefox/profile/bookmarks.html r,
  #owner @{HOME}/.mozilla/** k,

  # Chromium configuration
  owner @{HOME}/.pki/nssdb/* rwk,
  owner @{HOME}/.cache/chromium/ rw,
  owner @{HOME}/.cache/chromium/** rw,
  owner @{HOME}/.cache/chromium/Cache/* mr,
  owner @{HOME}/.config/chromium/ rw,
  owner @{HOME}/.config/chromium/** rwk,
  owner @{HOME}/.config/chromium/**/Cache/* mr,
  owner @{HOME}/.config/chromium/Dictionaries/*.bdic mr,
  owner @{HOME}/.config/chromium/**/Dictionaries/*.bdic mr,

  # Allow transitions to ourself and our sandbox
  /usr/lib/chromium/chromium ix,
  /usr/lib/chromium/chromium-sandbox cx -> chromium_sandbox,
  /usr/lib/chromium/chrome-sandbox cx -> chromium_browser_sandbox,

  # Allow communicating with sandbox
  unix (receive, send) peer=(label=/usr/lib/chromium/chromium//chromium_browser_sandbox),

  /bin/ps Uxr,
  /usr/lib/chromium/xdg-settings Cxr -> xdgsettings,
  /usr/bin/xdg-settings Cxr -> xdgsettings,
  /usr/bin/lsb_release Cxr -> lsb_release,

  /usr/lib/chromium/icudtl.dat rm,
  /usr/lib/chromium/natives_blob.bin rm,
  /usr/lib/chromium/snaptshot_blob.bin rm,

  # GSettings
  owner /{,var/}run/user/*/dconf/     rw,
  owner /{,var/}run/user/*/dconf/user rw,
  owner @{HOME}/.config/dconf/user r,

  profile xdgsettings flags=(attach_disconnected) {
    #include <abstractions/bash>
    #include <abstractions/gnome>

    /bin/dash ixr,

    /usr/bin/dbus-send ixr,
    /usr/bin/xprop ixr,

    /etc/ld.so.cache r,
    /usr/bin/xdg-settings r,
    /usr/lib/chromium/xdg-settings r,
    /usr/share/applications/*.desktop r,

    /bin/uname ixr,

    # Checking default browser
    /bin/grep ixr,
    /bin/readlink ixr,
    /bin/sed ixr,
    /bin/which ixr,
    /usr/bin/basename ixr,
    /usr/bin/cut ixr,

    # Setting the default browser
    /bin/mkdir ixr,
    /bin/mv ixr,
    /bin/touch ixr,
    /usr/bin/dirname ixr,
    /usr/bin/gconftool-2 ix,
    /usr/bin/[gm]awk ixr,
    /usr/bin/xdg-mime ixr,
    owner @{HOME}/.local/share/applications/ w,
    owner @{HOME}/.local/share/applications/mimeapps.list* rw,
  }

  profile lsb_release flags=(attach_disconnected) {
    #include <abstractions/base>
    #include <abstractions/python>
    /usr/bin/lsb_release r,
    /bin/dash ixr,
    /usr/bin/dpkg-query ixr,
    /usr/include/python2.[4567]/pyconfig.h r,
    /etc/lsb-release r,
    /etc/debian_version r,
    /var/lib/dpkg/** r,

    /etc/dpkg/origins/debian r,

    /usr/local/lib/python3.[0-4]/dist-packages/ r,
    /usr/bin/ r,
    /usr/bin/python2.7 r,
    /usr/bin/python3.[0-4] r,
  }


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

profile chromium_browser_sandbox flags=(attach_disconnected) {
    # Be fanatical since it is setuid root and don't use an abstraction
    /lib/libgcc_s.so* mr,
    /lib/@{multiarch}/libgcc_s.so* mr,
    /lib{,32,64}/libm-*.so* mr,
    /lib/@{multiarch}/libm-*.so* mr,
    /lib{,32,64}/libpthread-*.so* mr,
    /lib/@{multiarch}/libpthread-*.so* mr,
    /lib{,32,64}/libc-*.so* mr,
    /lib/@{multiarch}/libc-*.so* mr,
    /lib{,32,64}/libld-*.so* mr,
    /lib/@{multiarch}/libld-*.so* mr,
    /lib{,32,64}/ld-*.so* mr,
    /lib/@{multiarch}/ld-*.so* mr,
    /lib/tls/*/{cmov,nosegneg}/libm-*.so* mr,
    /lib/tls/*/{cmov,nosegneg}/libpthread-*.so* mr,
    /lib/tls/*/{cmov,nosegneg}/libc-*.so* mr,
    /usr/lib/libstdc++.so* mr,
    /usr/lib/@{multiarch}/libstdc++.so* mr,
    /etc/ld.so.cache r,

    # Required for dropping into PID namespace. Keep in mind that until the
    # process drops this capability it can escape confinement, but once it
    # drops CAP_SYS_ADMIN we are ok.
    capability sys_admin,

    # All of these are for sanely dropping from root and chrooting
    capability chown,
    capability fsetid,
    capability setgid,
    capability setuid,
    capability dac_override,
    capability sys_chroot,

    capability sys_ptrace,
    ptrace (read, readby),

    unix (receive, send) peer=(label=/usr/lib/chromium/chromium),
    unix (create),
    unix peer=(label=@{profile_name}),
    unix (getattr, getopt, setopt, shutdown) addr=none,

    @{PROC}/ r,
    @{PROC}/[0-9]*/ r,
    @{PROC}/[0-9]*/fd/ r,
    deny @{PROC}/[0-9]*/oom_adj w,
    deny @{PROC}/[0-9]*/oom_score_adj w,
    @{PROC}/[0-9]*/status r,
    @{PROC}/[0-9]*/task/[0-9]*/stat r,

    /usr/bin/chromium r,
    /usr/lib/chromium/chromium Px,
    /usr/lib/chromium/chromium-sandbox mr,
    /usr/lib/chromium/chrome-sandbox mr,

    /dev/null rw,

    owner /tmp/** rw,
  }
}