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Read Michael MIC keys through TK2 union instead of offset from TK1

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This gets rid of potential warnings about buffer bounds errors. The earlier
code works fine, but it is not the cleanest way of using the struct wpa_ptk
definition for TK1/TK2.
This commit is contained in:
Jouni Malinen 2008-06-05 21:00:56 +03:00
parent 7cdeb81e1f
commit b6ab429402
1 changed files with 2 additions and 2 deletions
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4
src/rsn_supp/peerkey.c
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@ -867,8 +867,8 @@ static void wpa_supplicant_process_stk_3_of_4(struct wpa_sm *sm,
if (peerkey->cipher == WPA_CIPHER_TKIP) {
/* Swap Tx/Rx keys for Michael MIC */
os_memcpy(key_buf, _key, 16);
os_memcpy(key_buf + 16, _key + 24, 8);
os_memcpy(key_buf + 24, _key + 16, 8);
os_memcpy(key_buf + 16, peerkey->stk.u.auth.rx_mic_key, 8);
os_memcpy(key_buf + 24, peerkey->stk.u.auth.tx_mic_key, 8);
_key = key_buf;
key_len = 32;
} else