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Add more debug prints for WPA/RSN selection issues for connection

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ap_ft_sae test case managed to hit a somewhat unclear error case which
resulted in "WPA: Failed to select WPA/RSN" print and not enough
information to figure out what exactly had went wrong.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2014-12-22 13:49:52 +02:00
parent 9be2b811d4
commit 267ac3bcd6
2 changed files with 45 additions and 7 deletions
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16
wpa_supplicant/sme.c
View file

@ -259,12 +259,16 @@ static void sme_send_authentication(struct wpa_supplicant *wpa_s,
struct wpa_ie_data ied; struct wpa_ie_data ied;
rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
if (rsn && if (!rsn) {
wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0) { wpa_dbg(wpa_s, MSG_DEBUG,
if (wpa_key_mgmt_sae(ied.key_mgmt)) { "SAE enabled, but target BSS does not advertise RSN");
wpa_dbg(wpa_s, MSG_DEBUG, "Using SAE auth_alg"); } else if (wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0 &&
params.auth_alg = WPA_AUTH_ALG_SAE; wpa_key_mgmt_sae(ied.key_mgmt)) {
} wpa_dbg(wpa_s, MSG_DEBUG, "Using SAE auth_alg");
params.auth_alg = WPA_AUTH_ALG_SAE;
} else {
wpa_dbg(wpa_s, MSG_DEBUG,
"SAE enabled, but target BSS does not advertise SAE AKM for RSN");
} }
} }
#endif /* CONFIG_SAE */ #endif /* CONFIG_SAE */

36
wpa_supplicant/wpa_supplicant.c
View file

@ -1003,7 +1003,7 @@ int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0");
proto = WPA_PROTO_RSN; proto = WPA_PROTO_RSN;
} else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) &&
wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie) == 0 &&
(ie.group_cipher & ssid->group_cipher) && (ie.group_cipher & ssid->group_cipher) &&
(ie.pairwise_cipher & ssid->pairwise_cipher) && (ie.pairwise_cipher & ssid->pairwise_cipher) &&
(ie.key_mgmt & ssid->key_mgmt)) { (ie.key_mgmt & ssid->key_mgmt)) {
@ -1021,6 +1021,40 @@ int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
#endif /* CONFIG_HS20 */ #endif /* CONFIG_HS20 */
} else if (bss) { } else if (bss) {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN");
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: ssid proto=0x%x pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
ssid->proto, ssid->pairwise_cipher, ssid->group_cipher,
ssid->key_mgmt);
wpa_dbg(wpa_s, MSG_DEBUG, "WPA: BSS " MACSTR " ssid='%s'%s%s%s",
MAC2STR(bss->bssid),
wpa_ssid_txt(bss->ssid, bss->ssid_len),
bss_wpa ? " WPA" : "",
bss_rsn ? " RSN" : "",
bss_osen ? " OSEN" : "");
if (bss_rsn) {
wpa_hexdump(MSG_DEBUG, "RSN", bss_rsn, 2 + bss_rsn[1]);
if (wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie)) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Could not parse RSN element");
} else {
wpa_dbg(wpa_s, MSG_DEBUG,
"RSN: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
ie.pairwise_cipher, ie.group_cipher,
ie.key_mgmt);
}
}
if (bss_wpa) {
wpa_hexdump(MSG_DEBUG, "WPA", bss_wpa, 2 + bss_wpa[1]);
if (wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie)) {
wpa_dbg(wpa_s, MSG_DEBUG,
"Could not parse WPA element");
} else {
wpa_dbg(wpa_s, MSG_DEBUG,
"WPA: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
ie.pairwise_cipher, ie.group_cipher,
ie.key_mgmt);
}
}
return -1; return -1;
} else { } else {
if (ssid->proto & WPA_PROTO_OSEN) if (ssid->proto & WPA_PROTO_OSEN)