new profile: gdu (#5289)

* add gdu to 'new profiles' section

* Create gdu.profile

* add gdu to firecfg

* harden gdu sandbox

* fix protocol

* simulate empty protocol in gdu

* more user-friendly gdu sandboxing

README.md

@@ -221,4 +221,4 @@ Stats:
 
 ### New profiles:
 
-onionshare, onionshare-cli, opera-developer, songrec
+onionshare, onionshare-cli, opera-developer, songrec, gdu

etc/profile-a-l/gdu.profile

@@ -0,0 +1,46 @@
+# Firejail profile for gdu
+# Description: Fast disk usage analyzer with console interface
+# This file is overwritten after every install/update
+quiet
+# Persistent local customizations
+include gdu.local
+# Persistent global definitions
+include globals.local
+
+blacklist ${RUNUSER}/wayland-*
+
+include disable-exec.inc
+
+apparmor
+caps.drop all
+ipc-namespace
+machine-id
+net none
+no3d
+nodvd
+nogroups
+noinput
+nonewprivs
+noroot
+nosound
+notv
+nou2f
+novideo
+# block the socket syscall to simulate an be empty protocol line, see #639
+seccomp socket
+seccomp.block-secondary
+x11 none
+
+private-dev
+
+dbus-user none
+dbus-system none
+
+memory-deny-write-execute
+
+# gdu has built-in delete (d), empty (e) dir/file support and shell spawning (b) features.
+# Depending on workflow and use case the sandbox can be hardened by adding the
+# lines below to your gdu.local if you don't need/want these functionalities.
+#include disable-shell.inc
+#private-bin gdu
+#read-only ${HOME}

src/firecfg/firecfg.config

@@ -289,6 +289,7 @@ gapplication
 gcalccmd
 gcloud
 gconf-editor
+gdu
 geany
 geary
 gedit