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SAE: Special test mode sae_pwe=3 for looping with password identifier

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The new sae_pwe=3 mode can be used to test non-compliant behavior with
SAE Password Identifiers. This can be used to force use of
hunting-and-pecking loop for PWE derivation when Password Identifier is
used. This is not allowed by the standard and as such, this
functionality is aimed at compliance testing.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2020-02-10 04:59:10 +02:00
parent d57349d4b8
commit 641d79f165
8 changed files with 15 additions and 8 deletions
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8
src/ap/ieee802_11.c
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@ -101,6 +101,7 @@ u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid)
num++;
h2e_required = (hapd->conf->sae_pwe == 1 ||
hostapd_sae_pw_id_in_use(hapd->conf) == 2) &&
hapd->conf->sae_pwe != 3 &&
wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt);
if (h2e_required)
num++;
@ -155,6 +156,7 @@ u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid)
num++;
h2e_required = (hapd->conf->sae_pwe == 1 ||
hostapd_sae_pw_id_in_use(hapd->conf) == 2) &&
hapd->conf->sae_pwe != 3 &&
wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt);
if (h2e_required)
num++;
@ -456,7 +458,7 @@ static struct wpabuf * auth_build_sae_commit(struct hostapd_data *hapd,
use_pt = sta->sae->tmp->h2e;
}
if (rx_id)
if (rx_id && hapd->conf->sae_pwe != 3)
use_pt = 1;
else if (status_code == WLAN_STATUS_SUCCESS)
use_pt = 0;
@ -1079,12 +1081,12 @@ static int sae_status_success(struct hostapd_data *hapd, u16 status_code)
int id_in_use;
id_in_use = hostapd_sae_pw_id_in_use(hapd->conf);
if (id_in_use == 2)
if (id_in_use == 2 && sae_pwe != 3)
sae_pwe = 1;
else if (id_in_use == 1 && sae_pwe == 0)
sae_pwe = 2;
return (sae_pwe == 0 &&
return ((sae_pwe == 0 || sae_pwe == 3) &&
status_code == WLAN_STATUS_SUCCESS) ||
(sae_pwe == 1 &&
status_code == WLAN_STATUS_SAE_HASH_TO_ELEMENT) ||