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
|
#!/usr/bin/env python3
#
# Copyright (C) 2019-2022 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 netifaces import interfaces
from sys import exit
from time import sleep
from vyos.config import Config
from vyos.configdict import dict_merge
from vyos.configverify import verify_source_interface
from vyos.template import render
from vyos.util import cmd
from vyos.validate import is_addr_assigned
from vyos.validate import is_intf_addr_assigned
from vyos.xml import defaults
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'
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)
# We have gathered the dict representation of the CLI, but there are default
# options which we need to update into the dictionary retrived.
default_values = defaults(base)
options = dict_merge(default_values, options)
return options
def verify(options):
if 'http_client' in options:
config = options['http_client']
if 'source_interface' in config:
if not config['source_interface'] in interfaces():
raise ConfigError(f'Source interface {source_interface} does not '
f'exist'.format(**config))
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(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.tmpl', options)
render(ssh_config, 'system/ssh_config.tmpl', 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 (int(os.system('systemctl is-active --quiet tuned.service')) != 0):
sleep(0.250)
cmd('tuned-adm profile network-{performance}'.format(**options))
else:
cmd('systemctl stop tuned.service')
# 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')
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)
|
