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#!/usr/bin/env python
# SPDX-License-Identifier: GPL-2.0-or-later
#
# Copyright (C) 2017 Red Hat, Inc.
#
import sys
import re
import gi
gi.require_version("NM", "1.0")
from gi.repository import GLib, NM
###############################################################################
def usage():
print("Usage: %s [COMMAND [ARG]...]" % sys.argv[0])
print("")
print(" COMMANDS: [show]")
print(
" create TIMEOUT [--destroy-all|--delete-new-connections|--disconnect-new-devices|--allow-overlapping|DEV]..."
)
print(" destroy ['--last'|PATH|NUMBER[")
print(" rollback ['--last'|PATH|NUMBER]")
print(" adjust-rollback-timeout '--last'|PATH|NUMBER TIMEOUT")
print("")
print(" For destroy|rollback, when omitted then '--last' is the default.")
sys.exit(1)
def show(c, ts=None):
cr = c.get_created()
rt = c.get_rollback_timeout()
print("%s:" % c.get_path())
print(
" created: %u%s"
% (cr, "" if ts is None else (" (%s sec ago)" % ((ts - cr) / 1000.0)))
)
if rt == 0:
print(" timeout: infinity")
else:
print(
" timeout: %u seconds%s"
% (
rt,
""
if ts is None
else (" (circa %s sec left)" % ((cr + (rt * 1000) - ts) / 1000.0)),
)
)
print(
" devices: %s"
% (" ".join(sorted(map(lambda x: x.get_iface(), c.get_devices()))))
)
def checkpoint_path_to_num(path):
m = re.match(r"^/org/freedesktop/NetworkManager/Checkpoint/([1-9][0-9]*)$", path)
if m:
return int(m.group(1))
raise Exception(f'Unexpected D-Bus path "{path}"for checkpoint')
def find_checkpoint(nmc, path):
for c in nmc.get_checkpoints():
if c.get_path() == path:
return c
return None
def find_checkpoint_last(nmc):
return max(
nmc.get_checkpoints(),
key=lambda c: checkpoint_path_to_num(c.get_path()),
default=None,
)
def validate_path(path, nmc):
if path == "--last":
c = find_checkpoint_last(nmc)
if c is None:
sys.exit("Has no checkpoint")
return c.get_path()
try:
num = int(path)
path = f"/org/freedesktop/NetworkManager/Checkpoint/{num}"
except Exception as e:
pass
if not path or path[0] != "/":
sys.exit('Invalid checkpoint path "%s"' % (path))
if nmc is not None:
checkpoint = find_checkpoint(nmc, path)
if checkpoint is None:
print('WARNING: no checkpoint with path "%s" found' % (path))
return path
def validate_path_from_argv(nmc):
assert len(sys.argv) >= 2
if len(sys.argv) == 2:
path = "--last"
elif len(sys.argv) > 3:
sys.exit("Failed: invalid extra argument")
else:
path = sys.argv[2]
return validate_path(path, nmc)
def do_create(nmc):
flags = NM.CheckpointCreateFlags.NONE
if len(sys.argv) < 3:
sys.exit("Failed: missing argument timeout")
timeout = int(sys.argv[2])
devices = []
for arg in sys.argv[3:]:
if arg == "--destroy-all":
flags |= NM.CheckpointCreateFlags.DESTROY_ALL
elif arg == "--delete-new-connections":
flags |= NM.CheckpointCreateFlags.DELETE_NEW_CONNECTIONS
elif arg == "--disconnect-new-devices":
flags |= NM.CheckpointCreateFlags.DISCONNECT_NEW_DEVICES
elif arg == "--allow-overlapping":
flags |= NM.CheckpointCreateFlags.ALLOW_OVERLAPPING
else:
d = nmc.get_device_by_iface(arg)
if d is None:
sys.exit("Unknown device %s" % arg)
devices.append(d)
def create_cb(nmc, result, data):
try:
checkpoint = nmc.checkpoint_create_finish(result)
print("%s" % checkpoint.get_path())
except Exception as e:
sys.stderr.write("Failed: %s\n" % e.message)
main_loop.quit()
nmc.checkpoint_create(devices, timeout, flags, None, create_cb, None)
def do_destroy(nmc):
path = validate_path_from_argv(nmc)
def destroy_cb(nmc, result, data):
try:
if nmc.checkpoint_destroy_finish(result) == True:
print("Success")
except Exception as e:
sys.stderr.write("Failed: %s\n" % e.message)
main_loop.quit()
nmc.checkpoint_destroy(path, None, destroy_cb, None)
def do_rollback(nmc):
path = validate_path_from_argv(nmc)
def rollback_cb(nmc, result, data):
try:
res = nmc.checkpoint_rollback_finish(result)
for path in res:
d = nmc.get_device_by_path(path)
if d is None:
iface = path
else:
iface = d.get_iface()
print("%s => %s" % (iface, "OK" if res[path] == 0 else "ERROR"))
except Exception as e:
sys.stderr.write("Failed: %s\n" % e.message)
main_loop.quit()
nmc.checkpoint_rollback(path, None, rollback_cb, None)
def do_adjust_rollback_timeout(nmc):
if len(sys.argv) < 3:
sys.exit("Missing checkpoint path")
if len(sys.argv) < 4:
sys.exit("Missing timeout")
try:
add_timeout = int(sys.argv[3])
except Exception:
sys.exit("Invalid timeout")
path = validate_path(sys.argv[2], nmc)
def adjust_rollback_timeout_cb(nmc, result, data):
try:
nmc.checkpoint_adjust_rollback_timeout_finish(result)
print("Success")
except Exception as e:
sys.stderr.write("Failed: %s\n" % e.message)
main_loop.quit()
nmc.checkpoint_adjust_rollback_timeout(
path, add_timeout, None, adjust_rollback_timeout_cb, None
)
def do_show(nmc):
ts = NM.utils_get_timestamp_msec()
for c in nmc.get_checkpoints():
show(c, ts)
if __name__ == "__main__":
nmc = NM.Client.new(None)
main_loop = GLib.MainLoop()
if len(sys.argv) < 2 or sys.argv[1] == "show":
do_show(nmc)
sys.exit(0)
elif sys.argv[1] == "create":
do_create(nmc)
elif sys.argv[1] == "destroy":
do_destroy(nmc)
elif sys.argv[1] == "rollback":
do_rollback(nmc)
elif sys.argv[1] == "adjust-rollback-timeout":
do_adjust_rollback_timeout(nmc)
else:
usage()
main_loop.run()
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