Research Article
Task-Oriented Network Abnormal Behavior Detection Method
Algorithm 1
Security label extraction algorithm.
| | Input: IPv4 data packet: ipStream | | | Output: Security label: secLabel | | (1) | secLabel = [] | | (2) | if ipStream[0] > 0x45 then | | (3) | if ipStream [20] = = 0x7f then | | (4) | headerLen = (ipStream[0] - 0x40) <<2 | | (5) | secLabel = ipStream[20, headerLen - 1] | | (6) | end if | | (7) | end if | | (8) | return secLabel |
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