From c02dd10d7623625cf810cc54e362aacb5fb1b9c6 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni@codeaurora.org>
Date: Sun, 24 Mar 2019 22:17:49 +0200
Subject: [PATCH] DPP2: wpa_supplicant as Controller over TCP

New wpa_supplicant control interface commands "DPP_CONTROLLER_START
[tcp_port=<port>]" and "DPP_CONTROLLER_STOP" can be used to start and
stop listening to DPP requests over TCP in the Responder role. The TCP
connections are processed similarly to the ones that would have been
received over DPP Public Action frames.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
---
 wpa_supplicant/ctrl_iface.c     | 10 ++++++++++
 wpa_supplicant/dpp_supplicant.c | 21 +++++++++++++++++++++
 wpa_supplicant/dpp_supplicant.h |  1 +
 3 files changed, 32 insertions(+)

diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index 198ac562d..c1664d043 100644
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -10745,6 +10745,16 @@ char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
 	} else if (os_strncmp(buf, "DPP_PKEX_REMOVE ", 16) == 0) {
 		if (wpas_dpp_pkex_remove(wpa_s, buf + 16) < 0)
 			reply_len = -1;
+#ifdef CONFIG_DPP2
+	} else if (os_strncmp(buf, "DPP_CONTROLLER_START ", 21) == 0) {
+		if (wpas_dpp_controller_start(wpa_s, buf + 20) < 0)
+			reply_len = -1;
+	} else if (os_strcmp(buf, "DPP_CONTROLLER_START") == 0) {
+		if (wpas_dpp_controller_start(wpa_s, NULL) < 0)
+			reply_len = -1;
+	} else if (os_strcmp(buf, "DPP_CONTROLLER_STOP") == 0) {
+		dpp_controller_stop(wpa_s->dpp);
+#endif /* CONFIG_DPP2 */
 #endif /* CONFIG_DPP */
 	} else {
 		os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
diff --git a/wpa_supplicant/dpp_supplicant.c b/wpa_supplicant/dpp_supplicant.c
index 4cfbbcba7..c808f2ce4 100644
--- a/wpa_supplicant/dpp_supplicant.c
+++ b/wpa_supplicant/dpp_supplicant.c
@@ -11,6 +11,7 @@
 
 #include "utils/common.h"
 #include "utils/eloop.h"
+#include "utils/ip_addr.h"
 #include "common/dpp.h"
 #include "common/gas.h"
 #include "common/gas_server.h"
@@ -2248,3 +2249,23 @@ void wpas_dpp_deinit(struct wpa_supplicant *wpa_s)
 	os_free(wpa_s->dpp_configurator_params);
 	wpa_s->dpp_configurator_params = NULL;
 }
+
+
+#ifdef CONFIG_DPP2
+int wpas_dpp_controller_start(struct wpa_supplicant *wpa_s, const char *cmd)
+{
+	struct dpp_controller_config config;
+	const char *pos;
+
+	os_memset(&config, 0, sizeof(config));
+	if (cmd) {
+		pos = os_strstr(cmd, " tcp_port=");
+		if (pos) {
+			pos += 10;
+			config.tcp_port = atoi(pos);
+		}
+	}
+	config.configurator_params = wpa_s->dpp_configurator_params;
+	return dpp_controller_start(wpa_s->dpp, &config);
+}
+#endif /* CONFIG_DPP2 */
diff --git a/wpa_supplicant/dpp_supplicant.h b/wpa_supplicant/dpp_supplicant.h
index ecb7a7d68..9ba315f55 100644
--- a/wpa_supplicant/dpp_supplicant.h
+++ b/wpa_supplicant/dpp_supplicant.h
@@ -25,5 +25,6 @@ int wpas_dpp_init(struct wpa_supplicant *wpa_s);
 void wpas_dpp_deinit(struct wpa_supplicant *wpa_s);
 int wpas_dpp_check_connect(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
 			   struct wpa_bss *bss);
+int wpas_dpp_controller_start(struct wpa_supplicant *wpa_s, const char *cmd);
 
 #endif /* DPP_SUPPLICANT_H */