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#!/usr/bin/env python3
# This file is part of Firejail project
# Copyright (C) 2014-2024 Firejail Authors
# License GPL v2
# Requirements:
# python >= 3.6
from os import path
from sys import argv, exit as sys_exit, stderr
__doc__ = f"""\
Sort the arguments of commands in profiles.
Usage: {path.basename(argv[0])} [-i] [/path/to/profile ...]
The following commands are supported:
private-bin, private-etc, private-lib, caps.drop, caps.keep, seccomp,
seccomp.drop, seccomp.keep, protocol
Note that this is only applicable to commands that support multiple arguments.
Options:
-i Edit the profile file(s) in-place.
Examples:
$ {argv[0]} -i MyAwesomeProfile.profile
$ {argv[0]} -i new_profile.profile second_new_profile.profile
$ {argv[0]} -i ~/.config/firejail/*.{{profile,inc,local}}
$ sudo {argv[0]} -i /etc/firejail/*.{{profile,inc,local}}
Exit Codes:
0: Success: No profiles needed fixing.
1: Error: One or more profiles could not be processed correctly.
2: Error: Missing arguments.
101: Info: One or more profiles were fixed.
"""
def sort_alphabetical(original_items):
items = original_items.split(",")
items = filter(None, set(items))
items = sorted(items)
return ",".join(items)
def sort_protocol(original_protocols):
"""
Sort the given protocols into the following order:
unix,inet,inet6,netlink,packet,bluetooth
"""
# shortcut for common protocol lines
if original_protocols in ("unix", "unix,inet,inet6"):
return original_protocols
fixed_protocols = ""
for protocol in ("unix", "inet", "inet6", "netlink", "packet", "bluetooth"):
for prefix in ("", "-", "+", "="):
if f",{prefix}{protocol}," in f",{original_protocols},":
fixed_protocols += f"{prefix}{protocol},"
return fixed_protocols[:-1]
def check_profile(filename, overwrite):
with open(filename, "r+") as profile:
lines = profile.read().split("\n")
was_fixed = False
fixed_profile = []
for lineno, line in enumerate(lines, 1):
if line[:12] in ("private-bin ", "private-etc ", "private-lib "):
fixed_line = f"{line[:12]}{sort_alphabetical(line[12:])}"
elif line[:13] in ("seccomp.drop ", "seccomp.keep "):
fixed_line = f"{line[:13]}{sort_alphabetical(line[13:])}"
elif line[:10] in ("caps.drop ", "caps.keep "):
fixed_line = f"{line[:10]}{sort_alphabetical(line[10:])}"
elif line[:8] == "protocol":
fixed_line = f"protocol {sort_protocol(line[9:])}"
elif line[:8] == "seccomp ":
fixed_line = f"{line[:8]}{sort_alphabetical(line[8:])}"
else:
fixed_line = line
if fixed_line != line:
was_fixed = True
print(
f"{filename}:{lineno}:-{line}\n"
f"{filename}:{lineno}:+{fixed_line}"
)
fixed_profile.append(fixed_line)
if was_fixed:
if overwrite:
profile.seek(0)
profile.truncate()
profile.write("\n".join(fixed_profile))
profile.flush()
print(f"[ Fixed ] {filename}")
return 101
return 0
def main(args):
overwrite = False
if len(args) > 0 and args[0] == "-i":
overwrite = True
args.pop(0)
if len(args) < 1:
print(__doc__, file=stderr)
return 2
print(f"sort.py: checking {len(args)} profile(s)...")
exit_code = 0
for filename in args:
try:
if exit_code not in (1, 101):
exit_code = check_profile(filename, overwrite)
else:
check_profile(filename, overwrite)
except FileNotFoundError as err:
print(f"[ Error ] {err}", file=stderr)
exit_code = 1
except PermissionError as err:
print(f"[ Error ] {err}", file=stderr)
exit_code = 1
except Exception as err:
print(
f"[ Error ] An error occurred while processing '{filename}': {err}",
file=stderr,
)
exit_code = 1
return exit_code
if __name__ == "__main__":
sys_exit(main(argv[1:]))
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