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Code Issues Releases Wiki Activity

Have autocons auto-react to SOL connect

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When connecting, DCD indicates the activity.  Use DCD
to commence/discontinue the SOL console.
This commit is contained in:
Jarrod Johnson
2019-03-14 13:03:47 -04:00
parent 15866feb45
commit 5f92abd078
1 changed files with 36 additions and 4 deletions
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40
xCAT-genesis-scripts/usr/bin/autocons.py
View File

@@ -1,6 +1,10 @@
import fcntl
import os
import signal
import struct
import subprocess
import termios
import time
addrtoname = {
0x3f8: '/dev/ttyS0',
@@ -46,13 +50,41 @@ def do_serial_config():
currattr = termios.tcgetattr(ttyf)
currattr[4:6] = [0, termiobaud[retval['speed']]]
termios.tcsetattr(ttyf, termios.TCSANOW, currattr)
retval['connected'] = bool(struct.unpack('<I', fcntl.ioctl(
ttyf, termios.TIOCMGET, '\x00\x00\x00\x00'))[0] & termios.TIOCM_CAR)
os.close(ttyf)
return retval
def is_connected(tty):
ttyf = os.open(tty, os.O_RDWR | os.O_NOCTTY)
retval = bool(struct.unpack('<I', fcntl.ioctl(
ttyf, termios.TIOCMGET, '\x00\x00\x00\x00'))[0] & termios.TIOCM_CAR)
os.close(ttyf)
return retval
if __name__ == '__main__':
serialinfo = do_serial_config()
if serialinfo:
os.execl(
'/bin/setsid', 'setsid', 'sh', '-c',
'exec screen -x console <> {0} >&0 2>&1'.format(serialinfo['tty']))
running = False
while True:
if running and running.poll() is not None:
running = False
if running and not is_connected(serialinfo['tty']):
try:
running.terminate()
running.wait()
except Exception:
pass
time.sleep(0.5)
running = subprocess.Popen(['/bin/sh', '-c', 'exec screen -x console <> {0} >&0 2>&1'.format(serialinfo['tty'])])
time.sleep(0.5)
try:
running.terminate()
running.wait()
except Exception:
pass
running = False
elif not running and is_connected(serialinfo['tty']):
running = subprocess.Popen(['/bin/sh', '-c', 'exec screen -x console <> {0} >&0 2>&1'.format(serialinfo['tty'])])
time.sleep(0.5)