Make last received ANonce available through control interface

This makes it easier to debug 4-way handshake implementation issues
without having to use a sniffer.

Signed-off-by: Jouni Malinen <j@w1.fi>

src/rsn_supp/wpa.c

@@ -3281,11 +3281,19 @@ void wpa_sm_set_ptk_kck_kek(struct wpa_sm *sm,
 
 
 #ifdef CONFIG_TESTING_OPTIONS
+
 void wpa_sm_set_test_assoc_ie(struct wpa_sm *sm, struct wpabuf *buf)
 {
 	wpabuf_free(sm->test_assoc_ie);
 	sm->test_assoc_ie = buf;
 }
+
+
+const u8 * wpa_sm_get_anonce(struct wpa_sm *sm)
+{
+	return sm->anonce;
+}
+
 #endif /* CONFIG_TESTING_OPTIONS */
 
 

src/rsn_supp/wpa.h

@@ -428,6 +428,7 @@ extern unsigned int tdls_testing;
 
 int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8 subelem_id, u8 *buf);
 void wpa_sm_set_test_assoc_ie(struct wpa_sm *sm, struct wpabuf *buf);
+const u8 * wpa_sm_get_anonce(struct wpa_sm *sm);
 
 struct wpabuf * fils_build_auth(struct wpa_sm *sm, int dh_group, const u8 *md);
 int fils_process_auth(struct wpa_sm *sm, const u8 *bssid, const u8 *data,

wpa_supplicant/ctrl_iface.c

@@ -749,6 +749,12 @@ static int wpa_supplicant_ctrl_iface_get(struct wpa_supplicant *wpa_s,
 #endif /* CONFIG_TESTING_GET_GTK */
 	} else if (os_strcmp(cmd, "tls_library") == 0) {
 		res = tls_get_library_version(buf, buflen);
+#ifdef CONFIG_TESTING_OPTIONS
+	} else if (os_strcmp(cmd, "anonce") == 0) {
+		return wpa_snprintf_hex(buf, buflen,
+					wpa_sm_get_anonce(wpa_s->wpa),
+					WPA_NONCE_LEN);
+#endif /* CONFIG_TESTING_OPTIONS */
 	} else {
 		res = wpa_config_get_value(cmd, wpa_s->conf, buf, buflen);
 	}