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SAE: Derive H2E PT in AP when starting the AP

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Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2019-09-06 15:51:37 +03:00 committed by Jouni Malinen
parent 444d76f74f
commit 43b20b4370
3 changed files with 55 additions and 0 deletions
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5
hostapd/ctrl_iface.c
View File

@ -1424,6 +1424,11 @@ static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd)
if (ieee802_11_update_beacons(hapd->iface))
wpa_printf(MSG_DEBUG,
"Failed to update beacons with WMM parameters");
} else if (os_strcmp(cmd, "wpa_passphrase") == 0 ||
os_strcmp(cmd, "sae_password") == 0 ||
os_strcmp(cmd, "sae_pwe") == 0) {
if (hapd->started)
hostapd_setup_sae_pt(hapd->conf);
}
}

47
src/ap/ap_config.c
View File

@ -16,6 +16,7 @@
#include "common/ieee802_1x_defs.h"
#include "common/eapol_common.h"
#include "common/dhcp.h"
#include "common/sae.h"
#include "eap_common/eap_wsc_common.h"
#include "eap_server/eap.h"
#include "wpa_auth.h"
@ -434,10 +435,50 @@ static int hostapd_derive_psk(struct hostapd_ssid *ssid)
}
int hostapd_setup_sae_pt(struct hostapd_bss_config *conf)
{
#ifdef CONFIG_SAE
struct hostapd_ssid *ssid = &conf->ssid;
struct sae_password_entry *pw;
if (conf->sae_pwe == 0)
return 0; /* PT not needed */
sae_deinit_pt(ssid->pt);
ssid->pt = NULL;
if (ssid->wpa_passphrase) {
ssid->pt = sae_derive_pt(conf->sae_groups, ssid->ssid,
ssid->ssid_len,
(const u8 *) ssid->wpa_passphrase,
os_strlen(ssid->wpa_passphrase),
NULL);
if (!ssid->pt)
return -1;
}
for (pw = conf->sae_passwords; pw; pw = pw->next) {
sae_deinit_pt(pw->pt);
pw->pt = sae_derive_pt(conf->sae_groups, ssid->ssid,
ssid->ssid_len,
(const u8 *) pw->password,
os_strlen(pw->password),
pw->identifier);
if (!pw->pt)
return -1;
}
#endif /* CONFIG_SAE */
return 0;
}
int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
{
struct hostapd_ssid *ssid = &conf->ssid;
if (hostapd_setup_sae_pt(conf) < 0)
return -1;
if (ssid->wpa_passphrase != NULL) {
if (ssid->wpa_psk != NULL) {
wpa_printf(MSG_DEBUG, "Using pre-configured WPA PSK "
@ -643,6 +684,9 @@ static void hostapd_config_free_sae_passwords(struct hostapd_bss_config *conf)
pw = pw->next;
str_clear_free(tmp->password);
os_free(tmp->identifier);
#ifdef CONFIG_SAE
sae_deinit_pt(tmp->pt);
#endif /* CONFIG_SAE */
os_free(tmp);
}
}
@ -679,6 +723,9 @@ void hostapd_config_free_bss(struct hostapd_bss_config *conf)
#ifdef CONFIG_FULL_DYNAMIC_VLAN
os_free(conf->ssid.vlan_tagged_interface);
#endif /* CONFIG_FULL_DYNAMIC_VLAN */
#ifdef CONFIG_SAE
sae_deinit_pt(conf->ssid.pt);
#endif /* CONFIG_SAE */
hostapd_config_free_eap_users(conf->eap_user);
os_free(conf->eap_user_sqlite);

3
src/ap/ap_config.h
View File

@ -99,6 +99,7 @@ struct hostapd_ssid {
struct hostapd_wpa_psk *wpa_psk;
char *wpa_passphrase;
char *wpa_psk_file;
struct sae_pt *pt;
struct hostapd_wep_keys wep;
@ -251,6 +252,7 @@ struct sae_password_entry {
char *identifier;
u8 peer_addr[ETH_ALEN];
int vlan_id;
struct sae_pt *pt;
};
struct dpp_controller_conf {
@ -1104,5 +1106,6 @@ int hostapd_config_check(struct hostapd_config *conf, int full_config);
void hostapd_set_security_params(struct hostapd_bss_config *bss,
int full_config);
int hostapd_sae_pw_id_in_use(struct hostapd_bss_config *conf);
int hostapd_setup_sae_pt(struct hostapd_bss_config *conf);
#endif /* HOSTAPD_CONFIG_H */