Added wps_cred_processing configuration option for hostapd

This behaves like the one in wpa_supplicant, i.e., hostapd can be
configured not to process new credentials (AP settings) internally and
instead pass the WPS attributes for an external program to process over
ctrl_iface.

hostapd/config.c

@@ -2227,6 +2227,8 @@ struct hostapd_config * hostapd_config_read(const char *fname)
 					   line, pos);
 				errors++;
 			}
+		} else if (os_strcmp(buf, "wps_cred_processing") == 0) {
+			bss->wps_cred_processing = atoi(pos);
 #endif /* CONFIG_WPS */
 		} else {
 			wpa_printf(MSG_ERROR, "Line %d: unknown configuration "

hostapd/config.h

@@ -303,6 +303,7 @@ struct hostapd_bss_config {
 	int skip_cred_build;
 	u8 *extra_cred;
 	size_t extra_cred_len;
+	int wps_cred_processing;
 #endif /* CONFIG_WPS */
 };
 

hostapd/hostapd.conf

@@ -948,6 +948,14 @@ own_ip_addr=127.0.0.1
 # attribute(s) as binary data.
 #extra_cred=hostapd.cred
 
+# Credential processing
+#   0 = process received credentials internally (default)
+#   1 = do not process received credentials; just pass them over ctrl_iface to
+#	external program(s)
+#   2 = process received credentials internally and pass them over ctrl_iface
+#	to external program(s)
+#wps_cred_processing=0
+
 
 ##### Multiple BSSID support ##################################################
 #

hostapd/wps_hostapd.c

@@ -194,7 +194,22 @@ static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 	wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 		   MAC2STR(cred->mac_addr));
 
-	wpa_msg(hapd, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
+	if ((hapd->conf->wps_cred_processing == 1 ||
+	     hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
+		size_t blen = cred->cred_attr_len * 2 + 1;
+		char *buf = os_malloc(blen);
+		if (buf) {
+			wpa_snprintf_hex(buf, blen,
+					 cred->cred_attr, cred->cred_attr_len);
+			wpa_msg(hapd, MSG_INFO, "%s%s",
+				WPS_EVENT_NEW_AP_SETTINGS, buf);
+			os_free(buf);
+		}
+	} else
+		wpa_msg(hapd, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
+
+	if (hapd->conf->wps_cred_processing == 1)
+		return 0;
 
 	len = os_strlen(hapd->iface->config_fname) + 5;
 	tmp_fname = os_malloc(len);