annotate test/parent_dropbear_map.py @ 1933:e093ddc5b585

Fix extra default -i arguments for multihop When multihop executes dbclient it should only add -i arguments from the original commandline, not the default id_dropbear key. Otherwise multiple -i arguments keep getting added which results in servers disconnecting with too many auth attempts
author Matt Johnston <matt@ucc.asn.au>
date Fri, 01 Apr 2022 11:56:10 +0800
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1 #!/usr/bin/env python3
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2
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3 import os
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4 import sys
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5 import time
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6 import psutil
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7
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8 from pathlib import Path
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9
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10
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11 want_name = "dropbear"
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12 # Walks up the parent process tree, prints a r-xp line of /proc/pid/maps when
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13 # it finds the wanted name
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14
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15 def main():
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16
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17 try:
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18 for p in psutil.Process().parents():
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19 print(p.pid, file=sys.stderr)
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20 print(p.name(), file=sys.stderr)
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21 print(p.cmdline(), file=sys.stderr)
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22
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23 if want_name in p.name():
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24 with (Path('/proc') / str(p.pid) / "maps").open() as f:
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25 for i, l in enumerate(f, 1):
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26 if ' r-xp ' in l:
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27 print(l.rstrip())
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28 break
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29 return
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30
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31 raise RuntimeError(f"Couldn't find parent {want_name} process")
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32 except Exception as e:
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33 print(psutil.Process().parents())
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34 for p in psutil.Process().parents():
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35 print(p.name())
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36 print(e)
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37 # time.sleep(100)
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38 raise
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39
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40 if __name__ == "__main__":
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41 main()