eapol: Add comment for handling MIC failures
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@ -754,6 +754,12 @@ static void eapol_handle_ptk_3_of_4(uint32_t ifindex,
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ek->key_descriptor_version,
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ek->key_descriptor_version,
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sm->replay_counter);
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sm->replay_counter);
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/*
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* 802.11-2012, Section 11.6.6.4, step b):
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* Verifies the Message 3 MIC. If the calculated MIC does not match
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* the MIC that the Authenticator included in the EAPOL-Key frame,
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* the Supplicant silently discards Message 3.
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*/
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if (!eapol_calculate_mic(ptk->kck, step4, mic))
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if (!eapol_calculate_mic(ptk->kck, step4, mic))
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goto fail;
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goto fail;
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