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WPS NFC: Use BSSID and AP Channel from handover select

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These optional attributes, if present, can be used to speed up the
initial connection by using a single channel scan.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2013-11-28 17:48:35 +02:00 committed by Jouni Malinen
parent 91226e0d12
commit 91a65018d8
4 changed files with 53 additions and 14 deletions
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2
wpa_supplicant/ctrl_iface.c
View file

@ -818,7 +818,7 @@ static int wpa_supplicant_ctrl_iface_wps_nfc(struct wpa_supplicant *wpa_s,
return -1;
return wpas_wps_start_nfc(wpa_s, NULL, _bssid, NULL, 0, 0, NULL, NULL,
0);
0, 0);
}

2
wpa_supplicant/p2p_supplicant.c
View file

@ -1128,7 +1128,7 @@ static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
DEV_PW_NFC_CONNECTION_HANDOVER ?
wpa_s->parent->p2p_peer_oob_pubkey_hash :
NULL,
NULL, 0);
NULL, 0, 0);
#endif /* CONFIG_WPS_NFC */
} else {
u16 dev_pw_id = DEV_PW_DEFAULT;

61
wpa_supplicant/wps_supplicant.c
View file

@ -1017,13 +1017,17 @@ static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s,
static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
struct wpa_ssid *selected, const u8 *bssid)
struct wpa_ssid *selected, const u8 *bssid,
int freq)
{
struct wpa_bss *bss;
wpa_s->after_wps = 0;
wpa_s->known_wps_freq = 0;
if (bssid) {
if (freq) {
wpa_s->after_wps = 5;
wpa_s->wps_freq = freq;
} else if (bssid) {
bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
if (bss && bss->freq > 0) {
wpa_s->known_wps_freq = 1;
@ -1073,7 +1077,7 @@ int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
ssid->eap.fragment_size = wpa_s->wps_fragment_size;
eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
wpa_s, NULL);
wpas_wps_reassoc(wpa_s, ssid, bssid);
wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
return 0;
}
@ -1082,7 +1086,7 @@ static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s,
const u8 *dev_addr, const u8 *bssid,
const char *pin, int p2p_group, u16 dev_pw_id,
const u8 *peer_pubkey_hash,
const u8 *ssid_val, size_t ssid_len)
const u8 *ssid_val, size_t ssid_len, int freq)
{
struct wpa_ssid *ssid;
char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN];
@ -1146,7 +1150,7 @@ static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s,
eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
wpa_s, NULL);
wpa_s->wps_ap_iter = 1;
wpas_wps_reassoc(wpa_s, ssid, bssid);
wpas_wps_reassoc(wpa_s, ssid, bssid, freq);
return rpin;
}
@ -1155,7 +1159,7 @@ int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
const char *pin, int p2p_group, u16 dev_pw_id)
{
return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group,
dev_pw_id, NULL, NULL, 0);
dev_pw_id, NULL, NULL, 0, 0);
}
@ -1233,7 +1237,7 @@ int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
ssid->eap.fragment_size = wpa_s->wps_fragment_size;
eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
wpa_s, NULL);
wpas_wps_reassoc(wpa_s, ssid, bssid);
wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
return 0;
}
@ -2131,7 +2135,7 @@ int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr,
const u8 *bssid,
const struct wpabuf *dev_pw, u16 dev_pw_id,
int p2p_group, const u8 *peer_pubkey_hash,
const u8 *ssid, size_t ssid_len)
const u8 *ssid, size_t ssid_len, int freq)
{
struct wps_context *wps = wpa_s->wps;
char pw[32 * 2 + 1];
@ -2186,7 +2190,7 @@ int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr,
return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid,
dev_pw ? pw : NULL,
p2p_group, dev_pw_id, peer_pubkey_hash,
ssid, ssid_len);
ssid, ssid_len, freq);
}
@ -2433,6 +2437,8 @@ int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
struct wpabuf msg;
struct wps_parse_attr attr;
u16 dev_pw_id;
const u8 *bssid = NULL;
int freq = 0;
wps = ndef_parse_wifi(data);
if (wps == NULL)
@ -2488,6 +2494,39 @@ int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len);
if (attr.mac_addr) {
bssid = attr.mac_addr;
wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR,
MAC2STR(bssid));
}
if (attr.rf_bands)
wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands);
if (attr.ap_channel) {
u16 chan = WPA_GET_BE16(attr.ap_channel);
wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan);
if (chan >= 1 && chan <= 13 &&
(attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ))
freq = 2407 + 5 * chan;
else if (chan == 14 &&
(attr.rf_bands == NULL ||
*attr.rf_bands & WPS_RF_24GHZ))
freq = 2484;
else if (chan >= 30 &&
(attr.rf_bands == NULL ||
*attr.rf_bands & WPS_RF_50GHZ))
freq = 5000 + 5 * chan;
if (freq) {
wpa_printf(MSG_DEBUG,
"WPS: AP indicated channel %u -> %u MHz",
chan, freq);
}
}
wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
attr.oob_dev_password, attr.oob_dev_password_len);
dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
@ -2501,9 +2540,9 @@ int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash",
attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
ret = wpas_wps_start_nfc(wpa_s, NULL, NULL, NULL, dev_pw_id, 0,
ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0,
attr.oob_dev_password,
attr.ssid, attr.ssid_len);
attr.ssid, attr.ssid_len, freq);
out:
wpabuf_free(wps);

2
wpa_supplicant/wps_supplicant.h
View file

@ -68,7 +68,7 @@ int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *dev_addr,
const u8 *bssid,
const struct wpabuf *dev_pw, u16 dev_pw_id,
int p2p_group, const u8 *peer_pubkey_hash,
const u8 *ssid, size_t ssid_len);
const u8 *ssid, size_t ssid_len, int freq);
int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
const struct wpabuf *data);
struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s,