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wlantest: Handle variable length MIC field in EAPOL-Key with OWE

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The Key MIC field is of variable length when using OWE, so determine the
correct length based on which group was negotiated for OWE during
association.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
This commit is contained in:
Jouni Malinen 2023-08-08 10:30:10 +03:00 committed by Jouni Malinen
parent faee8b99e9
commit c3f465c56c
3 changed files with 43 additions and 19 deletions
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23
wlantest/rx_eapol.c
View file

@ -34,17 +34,20 @@ static int is_zero(const u8 *buf, size_t len)
static size_t determine_mic_len(struct wlantest_sta *sta)
{
size_t pmk_len = PMK_LEN;
int group = 0;
if (sta && wpa_key_mgmt_sae_ext_key(sta->key_mgmt) &&
sta->sae_group) {
switch (sta->sae_group) {
case 20:
pmk_len = 48;
break;
case 21:
pmk_len = 64;
break;
}
if (sta && wpa_key_mgmt_sae_ext_key(sta->key_mgmt))
group = sta->sae_group;
else if (sta && sta->key_mgmt == WPA_KEY_MGMT_OWE)
group = sta->owe_group;
switch (group) {
case 20:
pmk_len = 48;
break;
case 21:
pmk_len = 64;
break;
}
return wpa_mic_len(sta->key_mgmt, pmk_len);

38
wlantest/rx_mgmt.c
View file

@ -932,6 +932,11 @@ static void rx_mgmt_assoc_req(struct wlantest *wt, const u8 *data, size_t len)
sta->rsnxe_len = elems.rsnxe_len;
}
if (elems.owe_dh && elems.owe_dh_len >= 2) {
sta->owe_group = WPA_GET_LE16(elems.owe_dh);
wpa_printf(MSG_DEBUG, "OWE using group %u", sta->owe_group);
}
sta->assocreq_capab_info = le_to_host16(mgmt->u.assoc_req.capab_info);
sta->assocreq_listen_int =
le_to_host16(mgmt->u.assoc_req.listen_interval);
@ -1014,6 +1019,7 @@ static void rx_mgmt_assoc_resp(struct wlantest *wt, const u8 *data, size_t len)
struct wlantest_bss *bss;
struct wlantest_sta *sta;
u16 capab, status, aid;
struct ieee802_11_elems elems;
const u8 *ies;
size_t ies_len;
struct wpa_ft_ies parse;
@ -1063,16 +1069,15 @@ static void rx_mgmt_assoc_resp(struct wlantest *wt, const u8 *data, size_t len)
}
}
if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) == ParseFailed) {
add_note(wt, MSG_INFO,
"Failed to parse IEs in AssocResp from " MACSTR,
MAC2STR(mgmt->sa));
}
if (status == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) {
struct ieee802_11_elems elems;
if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) ==
ParseFailed) {
add_note(wt, MSG_INFO, "Failed to parse IEs in "
"AssocResp from " MACSTR,
MAC2STR(mgmt->sa));
} else if (elems.timeout_int == NULL ||
elems.timeout_int[0] !=
WLAN_TIMEOUT_ASSOC_COMEBACK) {
if (!elems.timeout_int ||
elems.timeout_int[0] != WLAN_TIMEOUT_ASSOC_COMEBACK) {
add_note(wt, MSG_INFO, "No valid Timeout Interval IE "
"with Assoc Comeback time in AssocResp "
"(status=30) from " MACSTR,
@ -1115,6 +1120,11 @@ static void rx_mgmt_assoc_resp(struct wlantest *wt, const u8 *data, size_t len)
if (parse.r1kh_id)
os_memcpy(bss->r1kh_id, parse.r1kh_id, FT_R1KH_ID_LEN);
}
if (elems.owe_dh && elems.owe_dh_len >= 2) {
sta->owe_group = WPA_GET_LE16(elems.owe_dh);
wpa_printf(MSG_DEBUG, "OWE using group %u", sta->owe_group);
}
}
@ -1179,6 +1189,11 @@ static void rx_mgmt_reassoc_req(struct wlantest *wt, const u8 *data,
sta->rsnxe_len = elems.rsnxe_len;
}
if (elems.owe_dh && elems.owe_dh_len >= 2) {
sta->owe_group = WPA_GET_LE16(elems.owe_dh);
wpa_printf(MSG_DEBUG, "OWE using group %u", sta->owe_group);
}
sta->assocreq_capab_info =
le_to_host16(mgmt->u.reassoc_req.capab_info);
sta->assocreq_listen_int =
@ -1899,6 +1914,11 @@ static void rx_mgmt_reassoc_resp(struct wlantest *wt, const u8 *data,
process_bigtk_subelem(wt, bss, sta, kek, kek_len,
parse.bigtk, parse.bigtk_len);
}
if (elems.owe_dh && elems.owe_dh_len >= 2) {
sta->owe_group = WPA_GET_LE16(elems.owe_dh);
wpa_printf(MSG_DEBUG, "OWE using group %u", sta->owe_group);
}
}

1
wlantest/wlantest.h
View file

@ -120,6 +120,7 @@ struct wlantest_sta {
u32 rx_tid[16 + 1];
u16 sae_group;
u16 owe_group;
};
struct wlantest_tdls {