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WPS NFC: Update DH keys for ER operations

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Since wpa_s->conf->wps_nfc_dh_* parameters can be set in number of code
paths, update the wps_context copy of the DH keys even if no new keys
were generated for the request. This tries to avoid some cases where
public key hash may not have matched the public key used in the ER
operation.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2013-07-11 16:33:05 +03:00 committed by Jouni Malinen
parent ac08752d28
commit d4b4d7fe3c
1 changed files with 9 additions and 11 deletions
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12
wpa_supplicant/wps_supplicant.c
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@ -2337,8 +2337,9 @@ wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef,
struct wpabuf *ret;
u8 u[UUID_LEN], *use_uuid = NULL;
u8 addr[ETH_ALEN], *use_addr = NULL;
struct wps_context *wps = wpa_s->wps;
if (wpa_s->wps == NULL)
if (wps == NULL)
return NULL;
if (uuid == NULL)
@ -2351,22 +2352,19 @@ wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef,
return NULL;
if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) {
struct wps_context *wps = wpa_s->wps;
if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
&wpa_s->conf->wps_nfc_dh_privkey) < 0)
return NULL;
}
wpas_wps_nfc_clear(wps);
wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
wps->ap_nfc_dh_pubkey =
wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
wps->ap_nfc_dh_privkey =
wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
wpas_wps_nfc_clear(wps);
return NULL;
}
}
ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid,
use_addr, wpa_s->conf->wps_nfc_dh_pubkey);