1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
#!/usr/bin/env python3
#
# Copyright (C) 2019-2024 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
from sys import exit
from time import sleep
from vyos.config import Config
from vyos.configverify import verify_source_interface
from vyos.configverify import verify_interface_exists
from vyos.system import grub_util
from vyos.template import render
from vyos.utils.dict import dict_search
from vyos.utils.file import write_file
from vyos.utils.kernel import check_kmod
from vyos.utils.process import cmd
from vyos.utils.process import is_systemd_service_running
from vyos.utils.network import is_addr_assigned
from vyos.utils.network import is_intf_addr_assigned
from vyos.configdep import set_dependents, call_dependents
from vyos import ConfigError
from vyos import airbag
airbag.enable()
curlrc_config = r'/etc/curlrc'
ssh_config = r'/etc/ssh/ssh_config.d/91-vyos-ssh-client-options.conf'
systemd_action_file = '/lib/systemd/system/ctrl-alt-del.target'
usb_autosuspend = r'/etc/udev/rules.d/40-usb-autosuspend.rules'
kernel_dynamic_debug = r'/sys/kernel/debug/dynamic_debug/control'
time_format_to_locale = {
'12-hour': 'en_US.UTF-8',
'24-hour': 'en_GB.UTF-8'
}
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
base = ['system', 'option']
options = conf.get_config_dict(base, key_mangling=('-', '_'),
get_first_key=True,
with_recursive_defaults=True)
if 'performance' in options:
# Update IPv4 and IPv6 options after TuneD reapplies
# sysctl from config files
for protocol in ['ip', 'ipv6']:
set_dependents(protocol, conf)
return options
def verify(options):
if 'http_client' in options:
config = options['http_client']
if 'source_interface' in config:
verify_interface_exists(options, config['source_interface'])
if {'source_address', 'source_interface'} <= set(config):
raise ConfigError('Can not define both HTTP source-interface and source-address')
if 'source_address' in config:
if not is_addr_assigned(config['source_address']):
raise ConfigError('No interface with give address specified!')
if 'ssh_client' in options:
config = options['ssh_client']
if 'source_address' in config:
address = config['source_address']
if not is_addr_assigned(config['source_address']):
raise ConfigError('No interface with address "{address}" configured!')
if 'source_interface' in config:
# verify_source_interface reuires key 'ifname'
config['ifname'] = config['source_interface']
verify_source_interface(config)
if 'source_address' in config:
address = config['source_address']
interface = config['source_interface']
if not is_intf_addr_assigned(interface, address):
raise ConfigError(f'Address "{address}" not assigned on interface "{interface}"!')
return None
def generate(options):
render(curlrc_config, 'system/curlrc.j2', options)
render(ssh_config, 'system/ssh_config.j2', options)
render(usb_autosuspend, 'system/40_usb_autosuspend.j2', options)
cmdline_options = []
if 'kernel' in options:
if 'disable_mitigations' in options['kernel']:
cmdline_options.append('mitigations=off')
if 'disable_power_saving' in options['kernel']:
cmdline_options.append('intel_idle.max_cstate=0 processor.max_cstate=1')
grub_util.update_kernel_cmdline_options(' '.join(cmdline_options))
return None
def apply(options):
# System bootup beep
if 'startup_beep' in options:
cmd('systemctl enable vyos-beep.service')
else:
cmd('systemctl disable vyos-beep.service')
# Ctrl-Alt-Delete action
if os.path.exists(systemd_action_file):
os.unlink(systemd_action_file)
if 'ctrl_alt_delete' in options:
if options['ctrl_alt_delete'] == 'reboot':
os.symlink('/lib/systemd/system/reboot.target', systemd_action_file)
elif options['ctrl_alt_delete'] == 'poweroff':
os.symlink('/lib/systemd/system/poweroff.target', systemd_action_file)
# Configure HTTP client
if 'http_client' not in options:
if os.path.exists(curlrc_config):
os.unlink(curlrc_config)
# Configure SSH client
if 'ssh_client' not in options:
if os.path.exists(ssh_config):
os.unlink(ssh_config)
# Reboot system on kernel panic
timeout = '0'
if 'reboot_on_panic' in options:
timeout = '60'
with open('/proc/sys/kernel/panic', 'w') as f:
f.write(timeout)
# tuned - performance tuning
if 'performance' in options:
cmd('systemctl restart tuned.service')
# wait until daemon has started before sending configuration
while (not is_systemd_service_running('tuned.service')):
sleep(0.250)
cmd('tuned-adm profile network-{performance}'.format(**options))
else:
cmd('systemctl stop tuned.service')
call_dependents()
# Keyboard layout - there will be always the default key inside the dict
# but we check for key existence anyway
if 'keyboard_layout' in options:
cmd('loadkeys {keyboard_layout}'.format(**options))
# Enable/diable root-partition-auto-resize SystemD service
if 'root_partition_auto_resize' in options:
cmd('systemctl enable root-partition-auto-resize.service')
else:
cmd('systemctl disable root-partition-auto-resize.service')
# Time format 12|24-hour
if 'time_format' in options:
time_format = time_format_to_locale.get(options['time_format'])
cmd(f'localectl set-locale LC_TIME={time_format}')
cmd('udevadm control --reload-rules')
# Enable/disable dynamic debugging for kernel modules
modules = ['wireguard']
modules_enabled = dict_search('kernel.debug', options) or []
for module in modules:
if module in modules_enabled:
check_kmod(module)
write_file(kernel_dynamic_debug, f'module {module} +p')
else:
write_file(kernel_dynamic_debug, f'module {module} -p')
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)
|
