28 lines
1.2 KiB
Python
28 lines
1.2 KiB
Python
import re, sys, subprocess
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out = subprocess.run(['trace-cmd','report','-R','-i','/tmp/iwl.dat'],
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capture_output=True, text=True).stdout
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NAMES = {(3,0x08):'MAC_CONFIG', (3,0x09):'LINK_CONFIG', (3,0x0a):'STA_CONFIG',
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(3,0x0c):'STA_REMOVE', (1,0x08):'PHY_CONTEXT', (3,0x05):'SESSION_PROT'}
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seen = {}
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for line in out.splitlines():
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m = re.search(r'hcmd=ARRAY\[(.*?)\]', line)
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if not m: continue
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b = [int(x,16) for x in m.group(1).split(', ')]
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if len(b) < 8: continue
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op, grp = b[0], b[1]
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ln = b[4] | (b[5] << 8)
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key = (grp, op)
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if key not in NAMES: continue
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payload = b[8:8+ln]
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action = payload[0] | (payload[1]<<8) | (payload[2]<<16) | (payload[3]<<24) if len(payload)>=4 else -1
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seen.setdefault(key, []).append((ln, payload))
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for key, lst in seen.items():
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print(f"\n===== {NAMES[key]} (group 0x{key[0]:02x} cmd 0x{key[1]:02x}) x{len(lst)} =====")
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lens = {l for l,_ in lst}
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print(f"payload length(s): {sorted(lens)}")
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# show the most 'interesting' one (most non-zero bytes)
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ln, p = max(lst, key=lambda t: sum(1 for x in t[1] if x))
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for off in range(0, len(p), 16):
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chunk = p[off:off+16]
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print(f" +{off:3d}: " + " ".join(f"{x:02x}" for x in chunk))
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