WPS NFC: Remove NFC_RX_HANDOVER_SEL

The newer NFC_REPORT_HANDOVER command is more general version that
handles the cases where NFC_RX_HANDOVER_SEL could potentially have been
used. In addition, with the new WPS NFC design, it is important to
receive the handover request message that was used in the handover in
addition to the select message, so the NFC_RX_HANDOVER_SEL command on
its own would not be sufficient for this.

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

wpa_supplicant/README-WPS

@@ -381,17 +381,6 @@ UUID|BSSID argument is included, this is a request to build the handover
 message for the specified AP when wpa_supplicant is operating as a WPS
 ER.
 
-"nfc_rx_handover_req <hexdump of payload>" is used to indicate receipt
-of NFC connection handover request. The payload may include multiple
-carriers the the applicable ones are matched based on the media
-type. The reply data is contents for the Handover Select Message
-(hexdump).
-
-"nfc_rx_handover_sel <hexdump of payload>" is used to indicate receipt
-of NFC connection handover select. The payload may include multiple
-carriers the the applicable ones are matched based on the media
-type.
-
 "nfc_report_handover <INIT/RESP> WPS <carrier from handover request>
 <carrier from handover select>" can be used as an alternative way for
 reporting completed NFC connection handover. The first parameter

wpa_supplicant/ctrl_iface.c

@@ -1094,33 +1094,6 @@ static int wpas_ctrl_nfc_get_handover_sel(struct wpa_supplicant *wpa_s,
 }
 
 
-static int wpas_ctrl_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
-					 char *cmd)
-{
-	size_t len;
-	struct wpabuf *buf;
-	int ret;
-
-	len = os_strlen(cmd);
-	if (len & 0x01)
-		return -1;
-	len /= 2;
-
-	buf = wpabuf_alloc(len);
-	if (buf == NULL)
-		return -1;
-	if (hexstr2bin(cmd, wpabuf_put(buf, len), len) < 0) {
-		wpabuf_free(buf);
-		return -1;
-	}
-
-	ret = wpas_wps_nfc_rx_handover_sel(wpa_s, buf);
-	wpabuf_free(buf);
-
-	return ret;
-}
-
-
 static int wpas_ctrl_nfc_report_handover(struct wpa_supplicant *wpa_s,
 					 char *cmd)
 {
@@ -6071,8 +6044,7 @@ char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
 					   os_strlen(WPA_CTRL_RSP)) == 0 ?
 				WPA_CTRL_RSP : "SET_NETWORK");
 	} else if (os_strncmp(buf, "WPS_NFC_TAG_READ", 16) == 0 ||
-		   os_strncmp(buf, "NFC_REPORT_HANDOVER", 19) == 0 ||
-		   os_strncmp(buf, "NFC_RX_HANDOVER_SEL", 19) == 0) {
+		   os_strncmp(buf, "NFC_REPORT_HANDOVER", 19) == 0) {
 		wpa_hexdump_ascii_key(MSG_DEBUG, "RX ctrl_iface",
 				      (const u8 *) buf, os_strlen(buf));
 	} else {
@@ -6210,9 +6182,6 @@ char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
 	} else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) {
 		reply_len = wpas_ctrl_nfc_get_handover_sel(
 			wpa_s, buf + 21, reply, reply_size);
-	} else if (os_strncmp(buf, "NFC_RX_HANDOVER_SEL ", 20) == 0) {
-		if (wpas_ctrl_nfc_rx_handover_sel(wpa_s, buf + 20))
-			reply_len = -1;
 	} else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) {
 		if (wpas_ctrl_nfc_report_handover(wpa_s, buf + 20))
 			reply_len = -1;

wpa_supplicant/wpa_cli.c

@@ -842,32 +842,6 @@ static int wpa_cli_cmd_nfc_get_handover_sel(struct wpa_ctrl *ctrl, int argc,
 }
 
 
-static int wpa_cli_cmd_nfc_rx_handover_sel(struct wpa_ctrl *ctrl, int argc,
-					   char *argv[])
-{
-	int ret;
-	char *buf;
-	size_t buflen;
-
-	if (argc != 1) {
-		printf("Invalid 'nfc_rx_handover_sel' command - one argument "
-		       "is required.\n");
-		return -1;
-	}
-
-	buflen = 21 + os_strlen(argv[0]);
-	buf = os_malloc(buflen);
-	if (buf == NULL)
-		return -1;
-	os_snprintf(buf, buflen, "NFC_RX_HANDOVER_SEL %s", argv[0]);
-
-	ret = wpa_ctrl_command(ctrl, buf);
-	os_free(buf);
-
-	return ret;
-}
-
-
 static int wpa_cli_cmd_nfc_report_handover(struct wpa_ctrl *ctrl, int argc,
 					   char *argv[])
 {
@@ -2704,9 +2678,6 @@ static struct wpa_cli_cmd wpa_cli_commands[] = {
 	{ "nfc_get_handover_sel", wpa_cli_cmd_nfc_get_handover_sel, NULL,
 	  cli_cmd_flag_none,
 	  "<NDEF> <WPS> = create NFC handover select" },
-	{ "nfc_rx_handover_sel", wpa_cli_cmd_nfc_rx_handover_sel, NULL,
-	  cli_cmd_flag_none,
-	  "<hexdump of payload> = report received NFC handover select" },
 	{ "nfc_report_handover", wpa_cli_cmd_nfc_report_handover, NULL,
 	  cli_cmd_flag_none,
 	  "<role> <type> <hexdump of req> <hexdump of sel> = report completed "

wpa_supplicant/wps_supplicant.c

@@ -2362,8 +2362,8 @@ struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 }
 
 
-int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
-				 const struct wpabuf *data)
+static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
+					const struct wpabuf *data)
 {
 	struct wpabuf *wps;
 	int ret = -1;

wpa_supplicant/wps_supplicant.h

@@ -75,8 +75,6 @@ struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s,
 					  int ndef);
 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 					  int ndef, int cr, const char *uuid);
-int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
-				 const struct wpabuf *data);
 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
 				 const struct wpabuf *req,
 				 const struct wpabuf *sel);