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Allow wildcard SSID to be used with WPA-PSK if bssid is set

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This allows the AP to be selected based on the BSSID when WPA-PSK
is used with a passphrase. The PSK will be derived from the passphrase
after the SSID has been learned from scan results.
This commit is contained in:
Zhi Chen 2011-09-30 22:01:42 +03:00 committed by Jouni Malinen
parent a52eba0f44
commit 7d232e23e2
2 changed files with 24 additions and 1 deletions
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4
wpa_supplicant/events.c
View File

@ -562,6 +562,10 @@ static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
} }
#endif /* CONFIG_WPS */ #endif /* CONFIG_WPS */
if (ssid->bssid_set && ssid->ssid_len == 0 &&
os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
check_ssid = 0;
if (check_ssid && if (check_ssid &&
(ssid_len != ssid->ssid_len || (ssid_len != ssid->ssid_len ||
os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) { os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {

21
wpa_supplicant/wpa_supplicant.c
View File

@ -20,6 +20,7 @@
#include "common.h" #include "common.h"
#include "crypto/random.h" #include "crypto/random.h"
#include "crypto/sha1.h"
#include "eapol_supp/eapol_supp_sm.h" #include "eapol_supp/eapol_supp_sm.h"
#include "eap_peer/eap.h" #include "eap_peer/eap.h"
#include "eap_server/eap_methods.h" #include "eap_server/eap_methods.h"
@ -1059,8 +1060,20 @@ int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
if (ssid->key_mgmt & if (ssid->key_mgmt &
(WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256)) (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256))
{
wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN);
else #ifndef CONFIG_NO_PBKDF2
if (bss && ssid->bssid_set && ssid->ssid_len == 0 &&
ssid->passphrase) {
u8 psk[PMK_LEN];
pbkdf2_sha1(ssid->passphrase, (char *) bss->ssid,
bss->ssid_len, 4096, psk, PMK_LEN);
wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
psk, PMK_LEN);
wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN);
}
#endif /* CONFIG_NO_PBKDF2 */
} else
wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
return 0; return 0;
@ -1827,6 +1840,12 @@ struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
return entry; return entry;
#endif /* CONFIG_WPS */ #endif /* CONFIG_WPS */
if (!entry->disabled && entry->bssid_set &&
entry->ssid_len == 0 &&
os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)
return entry;
entry = entry->next; entry = entry->next;
} }