net/mac80211/wpa.c

32 	u8 *data, *key, *mic;
62 		/* hwaccel - with no need for SW-generated MMIC or MIC space */
77 	mic = skb_put(skb, MICHAEL_MIC_LEN);
80 		/* Zeroed MIC can help with debug */
81 		memset(mic, 0, MICHAEL_MIC_LEN);
86 	michael_mic(key, hdr, data, data_len, mic);
88 		mic[0]++;
100 	u8 mic[MICHAEL_MIC_LEN];
106 	 * it makes no sense to check for MIC errors on anything other
113 	 * No way to verify the MIC if the hardware stripped it or
116 	 * MIC failure report.
130 	 * Some hardware seems to generate Michael MIC failure reports; even
132 	 * MIC. Ignore the flag them to avoid triggering countermeasures.
140 		 * APs with pairwise keys should never receive Michael MIC
162 	michael_mic(key, hdr, data, data_len, mic);
163 	if (crypto_memneq(mic, data + data_len, MICHAEL_MIC_LEN))
166 	/* remove Michael MIC from payload */
447 		 * header or MIC fields
568 			/* hardware didn't decrypt/verify MIC */
585 	/* Remove CCMP header and MIC */
646 		 * header or MIC fields
764 			/* hardware didn't decrypt/verify MIC */
782 	/* Remove GCMP header and MIC */
870 	 * MIC = AES-128-CMAC(IGTK, AAD || Management Frame Body || MMIE, 64)
873 			   skb->data + 24, skb->len - 24, mmie->mic);
917 	/* MIC = AES-256-CMAC(IGTK, AAD || Management Frame Body || MMIE, 128)
920 			       skb->data + 24, skb->len - 24, mmie->mic);
932 	u8 aad[20], mic[8], ipn[6];
957 		/* hardware didn't decrypt/verify MIC */
960 				   skb->data + 24, skb->len - 24, mic);
961 		if (crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) {
982 	u8 aad[20], mic[16], ipn[6];
1007 		/* hardware didn't decrypt/verify MIC */
1010 				       skb->data + 24, skb->len - 24, mic);
1011 		if (crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) {
1070 	/* MIC = AES-GMAC(IGTK, AAD || Management Frame Body || MMIE, 128) */
1072 			       skb->data + 24, skb->len - 24, mmie->mic) < 0)
1085 	u8 aad[GMAC_AAD_LEN], *mic, ipn[6], nonce[GMAC_NONCE_LEN];
1110 		/* hardware didn't decrypt/verify MIC */
1116 		mic = kmalloc(GMAC_MIC_LEN, GFP_ATOMIC);
1117 		if (!mic)
1121 				       mic) < 0 ||
1122 		    crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) {
1124 			kfree(mic);
1127 		kfree(mic);