no way to selectively disable quiet-by-default in firejail.config

[jonleivent]

There is no way to re-enable firejail output once quiet-by-default yes is in /etc/firejail/firejail.config.

I have quiet-by-default yes in my firejail.config so that profiles I have tested don't pollute my .xesssion-errors file. Unfortunately, there doesn't seem to be a way to re-enable verbose output for testing new profiles, short of editing firejail.config each time. I tried --ignore=quiet, --ignore=quiet-by-default, etc. with nothing working. Hence "quiet-by-default" is a bit of a misnomer.

As an alternative to quiet-by-default yes, I tried putting quiet in globals.local, but that still allows a few lines of output to get into .xsession-errors when starting up jails in ways other than the command line. BTW - I use firecfg, so I can't easily put --quiet on every firejail command line.

I recommend having a separate configuration for firejail when started via firecfg symlink vs. when started manually. Alternatively, add a --config=file command-line option to firejail - although that might violate security in multi-user environments.

I'm using firejail 0.9.58.2 in Debian buster.

[rusty-snake]

Something like noquiet.

For everyone with the same problem and a newer firejail version. Since 0.9.60 it is possible to set FIREJAIL_QUIET=yes (env var).

[jonleivent]

Is there a description of firejail env vars somewhere?

[rusty-snake]

No.

$ grep "etenv(" src/**/*.c                                                                                              ⎇ master a849f8c -U
src/faudit/dbus.c:	char *str = getenv("DBUS_SESSION_BUS_ADDRESS");
src/faudit/main.c:	if (getenv("FIREJAIL_TEST_ARGUMENTS")) {
src/faudit/pid.c:	char *str = getenv("container");
src/faudit/pid.c:		str = getenv("SNAP");
src/fcopy/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/fcopy/main.c:	char *debug = getenv("FIREJAIL_DEBUG");
src/fcopy/main.c:	char *cl = getenv("FIREJAIL_FILE_COPY_LIMIT");
src/firecfg/main.c:	char *user = getenv("SUDO_USER");
src/firecfg/util.c:	char *path1 = getenv("PATH");
src/firejail/appimage.c:	if (setenv("APPIMAGE", abspath, 1) < 0)
src/firejail/appimage.c:	if (mntdir && setenv("APPDIR", mntdir, 1) < 0)
src/firejail/appimage.c:	if (size != 0 && setenv("ARGV0", appimage, 1) < 0)
src/firejail/appimage.c:	if (cfg.cwd && setenv("OWD", cfg.cwd, 1) < 0)
src/firejail/checkcfg.c:				if (setenv("FIREJAIL_FILE_COPY_LIMIT", ptr + 16, 1) == -1)
src/firejail/chroot.c:	if (getenv("FIREJAIL_X11")) {
src/firejail/dbus.c:	if (setenv("DBUS_SESSION_BUS_ADDRESS", env_var, 1) == -1) {
src/firejail/env.c:	if (setenv("QT_X11_NO_MITSHM", "1", 1) < 0)
src/firejail/env.c:	if (setenv("QML_DISABLE_DISK_CACHE", "1", 1) < 0)
src/firejail/env.c://	if (setenv("QTWEBENGINE_DISABLE_SANDBOX", "1", 1) < 0)
src/firejail/env.c://	if (setenv("MOZ_NO_REMOTE, "1", 1) < 0)
src/firejail/env.c:	if (setenv("container", "firejail", 1) < 0) // LXC sets container=lxc,
src/firejail/env.c:	if (cfg.shell && setenv("SHELL", cfg.shell, 1) < 0)
src/firejail/env.c:	if (setenv("KDE_FORK_SLAVES", "1", 1) < 0)
src/firejail/env.c:		char *prompt = getenv("FIREJAIL_PROMPT");
src/firejail/env.c:		if (setenv("PROMPT_COMMAND", "export PS1=\"\\[\\e[1;32m\\][\\u@\\h \\W]\\$\\[\\e[0m\\] \"", 1) < 0)
src/firejail/env.c:		if (setenv("PROMPT_COMMAND", ":", 1) < 0) // unsetenv() will not work here, bash still picks it up from somewhere
src/firejail/env.c:		setenv("FIREJAIL_QUIET", "yes", 1);
src/firejail/env.c:			if (setenv(env->name, env->value, 1) < 0)
src/firejail/env.c:			unsetenv(env->name);
src/firejail/fs.c:	char *xauth = getenv("XAUTHORITY");
src/firejail/fs_whitelist.c:			char *env = getenv("TMP");
src/firejail/join.c:			setenv("DISPLAY", display_str, 1);
src/firejail/main.c:	shell = getenv("SHELL");
src/firejail/main.c:	assert(getenv("LD_PRELOAD") == NULL);
src/firejail/main.c:	char *env_quiet = getenv("FIREJAIL_QUIET");
src/firejail/main.c:	char *container_name = getenv("container");
src/firejail/no_sandbox.c:	char *str = getenv("container");
src/firejail/paths.c:	char *path = getenv("PATH");
src/firejail/paths.c:		setenv("PATH", path, 1);
src/firejail/profile.c:	return (arg_x11_block || arg_x11_xorg || getenv("FIREJAIL_X11"));
src/firejail/profile.c:			char *x11env = getenv("FIREJAIL_X11");
src/firejail/profile.c:			char *x11env = getenv("FIREJAIL_X11");
src/firejail/profile.c:			char *x11env = getenv("FIREJAIL_X11");
src/firejail/profile.c:			char *x11env = getenv("FIREJAIL_X11");
src/firejail/pulseaudio.c:	char *name = getenv("XDG_RUNTIME_DIR");
src/firejail/pulseaudio.c:		if (setenv("PULSE_CLIENTCONFIG", pulsecfg, 1) < 0)
src/firejail/run_symlink.c:	char *p = getenv("PATH");
src/firejail/run_symlink.c:	assert(getenv("LD_PRELOAD") == NULL);
src/firejail/sandbox.c:	char *mycont = getenv("container");
src/firejail/sandbox.c:		char *path1 = getenv("PATH");
src/firejail/sandbox.c:		printf("LD_PRELOAD=%s\n", getenv("LD_PRELOAD"));
src/firejail/sbox.c:		char *cl = getenv("FIREJAIL_FILE_COPY_LIMIT");
src/firejail/sbox.c:			if (setenv("FIREJAIL_FILE_COPY_LIMIT", cl, 1) == -1)
src/firejail/sbox.c:			setenv("FIREJAIL_QUIET", "yes", 1);
src/firejail/sbox.c:			setenv("FIREJAIL_DEBUG", "yes", 1);
src/firejail/x11.c:	const char *display_str = getenv("DISPLAY");
src/firejail/x11.c:	setenv("FIREJAIL_X11", "yes", 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("DISPLAY", display_str, 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("FIREJAIL_X11", "yes", 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("DISPLAY", display_str, 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("DISPLAY", display_str, 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:				assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("FIREJAIL_X11", "yes", 1);
src/firejail/x11.c:	char *display = getenv("DISPLAY");
src/firejail/x11.c:	char *envar = getenv("XAUTHORITY");
src/firejail/x11.c:	if (setenv("XAUTHORITY", dest, 1) < 0)
src/firejail/x11.c:	char *xauthority = getenv("XAUTHORITY");
src/fldd/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/fnetfilter/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/fnet/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/fseccomp/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/libtrace/libtrace.c:	char *logfile = getenv("FIREJAIL_TRACEFILE");

[netblue30]

Fixed! More fixes coming, tracking them in #4275.