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46 lines
1.3 KiB
46 lines
1.3 KiB
#!/usr/bin/env python
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# Copyright (c) PLUMgrid, Inc.
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# Licensed under the Apache License, Version 2.0 (the "License")
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from ctypes import c_uint, c_ulong, Structure
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from bcc import BPF
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import os
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from time import sleep
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import sys
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from unittest import main, TestCase
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arg1 = sys.argv.pop(1)
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arg2 = ""
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if len(sys.argv) > 1:
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arg2 = sys.argv.pop(1)
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Key = None
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Leaf = None
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if arg1.endswith(".b"):
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class Key(Structure):
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_fields_ = [("fd", c_ulong)]
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class Leaf(Structure):
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_fields_ = [("stat1", c_ulong),
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("stat2", c_ulong)]
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class TestKprobe(TestCase):
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def setUp(self):
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b = BPF(arg1, arg2, debug=0)
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self.stats = b.get_table("stats", Key, Leaf)
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b.attach_kprobe(event=b.get_syscall_fnname("write"), fn_name="sys_wr")
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b.attach_kprobe(event=b.get_syscall_fnname("read"), fn_name="sys_rd")
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b.attach_kprobe(event="htab_map_get_next_key", fn_name="sys_rd")
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def test_trace1(self):
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with open("/dev/null", "a") as f:
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for i in range(0, 100):
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os.write(f.fileno(), b"")
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with open("/etc/services", "r") as f:
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for i in range(0, 200):
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os.read(f.fileno(), 1)
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for key, leaf in self.stats.items():
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print("fd %x:" % key.fd, "stat1 %d" % leaf.stat1, "stat2 %d" % leaf.stat2)
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if __name__ == "__main__":
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main()
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