diff options
Diffstat (limited to 'src')
| -rwxr-xr-x | src/conf_mode/system_console.py | 70 |
1 files changed, 44 insertions, 26 deletions
diff --git a/src/conf_mode/system_console.py b/src/conf_mode/system_console.py index 33a546bd3..19b252513 100755 --- a/src/conf_mode/system_console.py +++ b/src/conf_mode/system_console.py @@ -18,9 +18,14 @@ import os import re from vyos.config import Config -from vyos.util import call, read_file, write_file +from vyos.configdict import dict_merge +from vyos.util import call +from vyos.util import read_file +from vyos.util import write_file from vyos.template import render -from vyos import ConfigError, airbag +from vyos.xml import defaults +from vyos import ConfigError +from vyos import airbag airbag.enable() by_bus_dir = '/dev/serial/by-bus' @@ -36,21 +41,27 @@ def get_config(config=None): console = conf.get_config_dict(base, get_first_key=True) # bail out early if no serial console is configured - if 'device' not in console.keys(): + if 'device' not in console: return console # convert CLI values to system values - for device in console['device'].keys(): - # no speed setting has been configured - use default value - if not 'speed' in console['device'][device].keys(): - tmp = { 'speed': '' } - if device.startswith('hvc'): - tmp['speed'] = 38400 - else: - tmp['speed'] = 115200 + default_values = defaults(base + ['device']) + for device, device_config in console['device'].items(): + if 'speed' not in device_config and device.startswith('hvc'): + # XEN console has a different default console speed + console['device'][device]['speed'] = 38400 + else: + # Merge in XML defaults - the proper way to do it + console['device'][device] = dict_merge(default_values, + console['device'][device]) + + return console - console['device'][device].update(tmp) +def verify(console): + if not console or 'device' not in console: + return None + for device in console['device']: if device.startswith('usb'): # It is much easiert to work with the native ttyUSBn name when using # getty, but that name may change across reboots - depending on the @@ -58,13 +69,13 @@ def get_config(config=None): # to its dynamic device file - and create a new dict entry for it. by_bus_device = f'{by_bus_dir}/{device}' if os.path.isdir(by_bus_dir) and os.path.exists(by_bus_device): - tmp = os.path.basename(os.readlink(by_bus_device)) - # updating the dict must come as last step in the loop! - console['device'][tmp] = console['device'].pop(device) + device = os.path.basename(os.readlink(by_bus_device)) - return console + # If the device name still starts with usbXXX no matching tty was found + # and it can not be used as a serial interface + if device.startswith('usb'): + raise ConfigError(f'Device {device} does not support beeing used as tty') -def verify(console): return None def generate(console): @@ -76,20 +87,29 @@ def generate(console): call(f'systemctl stop {basename}') os.unlink(os.path.join(root, basename)) - if not console: + if not console or 'device' not in console: return None - for device in console['device'].keys(): + for device, device_config in console['device'].items(): + if device.startswith('usb'): + # It is much easiert to work with the native ttyUSBn name when using + # getty, but that name may change across reboots - depending on the + # amount of connected devices. We will resolve the fixed device name + # to its dynamic device file - and create a new dict entry for it. + by_bus_device = f'{by_bus_dir}/{device}' + if os.path.isdir(by_bus_dir) and os.path.exists(by_bus_device): + device = os.path.basename(os.readlink(by_bus_device)) + config_file = base_dir + f'/serial-getty@{device}.service' getty_wants_symlink = base_dir + f'/getty.target.wants/serial-getty@{device}.service' - render(config_file, 'getty/serial-getty.service.tmpl', console['device'][device]) + render(config_file, 'getty/serial-getty.service.tmpl', device_config) os.symlink(config_file, getty_wants_symlink) # GRUB # For existing serial line change speed (if necessary) # Only applys to ttyS0 - if 'ttyS0' not in console['device'].keys(): + if 'ttyS0' not in console['device']: return None speed = console['device']['ttyS0']['speed'] @@ -98,7 +118,6 @@ def generate(console): return None lines = read_file(grub_config).split('\n') - p = re.compile(r'^(.* console=ttyS0),[0-9]+(.*)$') write = False newlines = [] @@ -122,9 +141,8 @@ def generate(console): return None def apply(console): - # reset screen blanking + # Reset screen blanking call('/usr/bin/setterm -blank 0 -powersave off -powerdown 0 -term linux </dev/tty1 >/dev/tty1 2>&1') - # Reload systemd manager configuration call('systemctl daemon-reload') @@ -136,11 +154,11 @@ def apply(console): call('/usr/bin/setterm -blank 15 -powersave powerdown -powerdown 60 -term linux </dev/tty1 >/dev/tty1 2>&1') # Start getty process on configured serial interfaces - for device in console['device'].keys(): + for device in console['device']: # Only start console if it exists on the running system. If a user # detaches a USB serial console and reboots - it should not fail! if os.path.exists(f'/dev/{device}'): - call(f'systemctl start serial-getty@{device}.service') + call(f'systemctl restart serial-getty@{device}.service') return None |