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eapol: include OCI in GTK 2/2

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This commit is contained in:
James Prestwood 2021-09-28 15:25:50 -07:00 committed by Denis Kenzior
parent 27be63fe65
commit ad4d639854
2 changed files with 24 additions and 1 deletions
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23
src/eapol.c
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@ -762,6 +762,8 @@ struct eapol_key *eapol_create_gtk_2_of_2(
enum eapol_protocol_version protocol,
enum eapol_key_descriptor_version version,
uint64_t key_replay_counter,
size_t extra_len,
const uint8_t *extra_data,
bool is_wpa, uint8_t wpa_key_id, size_t mic_len)
{
uint8_t snonce[32];
@ -770,7 +772,8 @@ struct eapol_key *eapol_create_gtk_2_of_2(
memset(snonce, 0, sizeof(snonce));
step2 = eapol_create_common(protocol, version, true,
key_replay_counter, snonce,
0, NULL, 0, is_wpa, mic_len);
extra_len, extra_data, 0, is_wpa,
mic_len);
if (!step2)
return step2;
@ -2010,6 +2013,7 @@ static void eapol_handle_gtk_1_of_2(struct eapol_sm *sm,
uint16_t igtk_key_index;
const uint8_t *oci = NULL;
size_t oci_len;
uint8_t oci_out[9];
l_debug("ifindex=%u", hs->ifindex);
@ -2068,6 +2072,22 @@ static void eapol_handle_gtk_1_of_2(struct eapol_sm *sm,
} else
igtk = NULL;
/*
* IEEE 802.11-2020 Section 12.7.7.3
* "Key Data = OCI KDE when dot11RSNAOperatingChannelValidationActivated
* on the [Supplicant]"
*
* Note: The spec reads "Authenticator" but this is incorrect and
* appears to be a copy-paste from a previous section. Above it has been
* changed to Supplicant.
*/
if (sm->handshake->supplicant_ocvc && sm->handshake->chandef) {
oci_out[0] = IE_TYPE_VENDOR_SPECIFIC;
oci_out[1] = 4 + 3;
l_put_be32(HANDSHAKE_KDE_OCI, oci_out + 2);
oci_from_chandef(sm->handshake->chandef, oci_out + 6);
}
/*
* 802.11-2016, Section 12.7.7.2:
* "
@ -2089,6 +2109,7 @@ static void eapol_handle_gtk_1_of_2(struct eapol_sm *sm,
step2 = eapol_create_gtk_2_of_2(sm->protocol_version,
ek->key_descriptor_version,
sm->replay_counter,
oci_out[1] + 2, oci_out,
hs->wpa_ie, ek->wpa_key_id,
sm->mic_len);

2
src/eapol.h
View File

@ -95,6 +95,8 @@ struct eapol_key *eapol_create_gtk_2_of_2(
enum eapol_protocol_version protocol,
enum eapol_key_descriptor_version version,
uint64_t key_replay_counter,
size_t extra_len,
const uint8_t *extra_data,
bool is_wpa, uint8_t wpa_key_id,
size_t mic_len);