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P2P: Enforce SAE-H2E for P2P GO in 6 GHz

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Allow sae_pwe parameter to be configured per-network and enforce the
SAE hash-to-element mechanism for the P2P GO if it is started on
a 6 GHz channel.

Signed-off-by: Sreeramya Soratkal <ssramya@codeaurora.org>
This commit is contained in:
Sreeramya Soratkal 2021-08-12 16:08:48 +05:30 committed by Jouni Malinen
parent afcadbbf4e
commit 891bb1305b
5 changed files with 23 additions and 1 deletions
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5
wpa_supplicant/ap.c
View file

@ -595,7 +595,10 @@ static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
bss->sae_passwords = pw;
}
bss->sae_pwe = wpa_s->conf->sae_pwe;
if (ssid->sae_pwe != DEFAULT_SAE_PWE)
bss->sae_pwe = ssid->sae_pwe;
else
bss->sae_pwe = wpa_s->conf->sae_pwe;
#endif /* CONFIG_SAE */
if (wpa_s->conf->go_interworking) {

1
wpa_supplicant/config.c
View file

@ -3140,6 +3140,7 @@ void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
#endif /* CONFIG_VHT_OVERRIDES */
ssid->proactive_key_caching = -1;
ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
ssid->sae_pwe = DEFAULT_SAE_PWE;
#ifdef CONFIG_MACSEC
ssid->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
#endif /* CONFIG_MACSEC */

1
wpa_supplicant/config_file.c
View file

@ -675,6 +675,7 @@ static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
INT(mem_only_psk);
STR(sae_password);
STR(sae_password_id);
write_int(f, "sae_pwe", ssid->sae_pwe, DEFAULT_SAE_PWE);
write_proto(f, ssid);
write_key_mgmt(f, ssid);
INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);

16
wpa_supplicant/config_ssid.h
View file

@ -46,6 +46,9 @@
#define DEFAULT_USER_SELECTED_SIM 1
#define DEFAULT_MAX_OPER_CHWIDTH -1
/* Consider global sae_pwe for SAE mechanism for PWE derivation */
#define DEFAULT_SAE_PWE 4
struct psk_list_entry {
struct dl_list list;
u8 addr[ETH_ALEN];
@ -1156,6 +1159,19 @@ struct wpa_ssid {
* configuration.
*/
bool was_recently_reconfigured;
/**
* sae_pwe - SAE mechanism for PWE derivation
*
* Internally, special value 4 (DEFAULT_SAE_PWE) is used to indicate
* that the parameter is not set and the global sae_pwe value needs to
* be considered.
*
* 0 = hunting-and-pecking loop only
* 1 = hash-to-element only
* 2 = both hunting-and-pecking loop and hash-to-element enabled
*/
int sae_pwe;
};
#endif /* CONFIG_SSID_H */

1
wpa_supplicant/p2p_supplicant.c
View file

@ -2082,6 +2082,7 @@ static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
ssid->auth_alg |= WPA_AUTH_ALG_SAE;
ssid->key_mgmt = WPA_KEY_MGMT_SAE;
ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED;
ssid->sae_pwe = 1;
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use SAE auth_alg and key_mgmt");
} else {
p2p_set_6ghz_dev_capab(wpa_s->global->p2p, false);