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eapol: allow _create_gtk_2_of_2 to work without MIC

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FILS does not use a MIC, as well as requires encrypted data on GTK 2/2.
This updates eapol_create_gtk_2_of_2 to pass in extra data to
eapol_create_common, which will reserve room for this encrypted data.
Extra data is only reserved if mic_len == 0.
This commit is contained in:
James Prestwood 2019-04-17 15:16:41 -07:00 committed by Denis Kenzior
parent ca63ac2342
commit 368d6714b9
1 changed files with 4 additions and 1 deletions
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5
src/eapol.c
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@ -700,11 +700,14 @@ struct eapol_key *eapol_create_gtk_2_of_2(
bool is_wpa, uint8_t wpa_key_id, size_t mic_len) bool is_wpa, uint8_t wpa_key_id, size_t mic_len)
{ {
uint8_t snonce[32]; uint8_t snonce[32];
uint8_t extra[16] = { 0 };
struct eapol_key *step2; struct eapol_key *step2;
memset(snonce, 0, sizeof(snonce)); memset(snonce, 0, sizeof(snonce));
step2 = eapol_create_common(protocol, version, true, step2 = eapol_create_common(protocol, version, true,
key_replay_counter, snonce, 0, NULL, key_replay_counter, snonce,
(mic_len) ? 0 : 16,
(mic_len) ? NULL : extra,
0, is_wpa, mic_len); 0, is_wpa, mic_len);
if (!step2) if (!step2)