wpa_cli: Support action scripts with global ctrl_iface

This extends "wpa_cli -a<action script>" functionality to work with the
global wpa_supplicant control interface. The IFNAME=<ifname> prefix is
removed from the event messages and converted to the control interface
name when present. Previously, action scripts could only be used with
the per-interface control interfaces.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

wpa_supplicant/wpa_cli.c

@@ -3178,15 +3178,29 @@ static void wpa_cli_action_process(const char *msg)
 {
 	const char *pos;
 	char *copy = NULL, *id, *pos2;
+	const char *ifname = ctrl_ifname;
+	char ifname_buf[100];
 
 	pos = msg;
+	if (os_strncmp(pos, "IFNAME=", 7) == 0) {
+		const char *end;
+		end = os_strchr(pos + 7, ' ');
+		if (end && (unsigned int) (end - pos) < sizeof(ifname_buf)) {
+			pos += 7;
+			os_memcpy(ifname_buf, pos, end - pos);
+			ifname_buf[end - pos] = '\0';
+			ifname = ifname_buf;
+			pos = end + 1;
+		}
+	}
 	if (*pos == '<') {
+		const char *prev = pos;
 		/* skip priority */
 		pos = os_strchr(pos, '>');
 		if (pos)
 			pos++;
 		else
-			pos = msg;
+			pos = prev;
 	}
 
 	if (str_match(pos, WPA_EVENT_CONNECTED)) {
@@ -3223,37 +3237,37 @@ static void wpa_cli_action_process(const char *msg)
 		if (wpa_cli_connected <= 0 || new_id != wpa_cli_last_id) {
 			wpa_cli_connected = 1;
 			wpa_cli_last_id = new_id;
-			wpa_cli_exec(action_file, ctrl_ifname, "CONNECTED");
+			wpa_cli_exec(action_file, ifname, "CONNECTED");
 		}
 	} else if (str_match(pos, WPA_EVENT_DISCONNECTED)) {
 		if (wpa_cli_connected) {
 			wpa_cli_connected = 0;
-			wpa_cli_exec(action_file, ctrl_ifname, "DISCONNECTED");
+			wpa_cli_exec(action_file, ifname, "DISCONNECTED");
 		}
 	} else if (str_match(pos, P2P_EVENT_GROUP_STARTED)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, P2P_EVENT_GROUP_REMOVED)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, P2P_EVENT_CROSS_CONNECT_ENABLE)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, P2P_EVENT_CROSS_CONNECT_DISABLE)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, P2P_EVENT_GO_NEG_FAILURE)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, WPS_EVENT_SUCCESS)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, WPS_EVENT_FAIL)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, AP_STA_CONNECTED)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, AP_STA_DISCONNECTED)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, ESS_DISASSOC_IMMINENT)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, HS20_SUBSCRIPTION_REMEDIATION)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, HS20_DEAUTH_IMMINENT_NOTICE)) {
-		wpa_cli_exec(action_file, ctrl_ifname, pos);
+		wpa_cli_exec(action_file, ifname, pos);
 	} else if (str_match(pos, WPA_EVENT_TERMINATING)) {
 		printf("wpa_supplicant is terminating - stop monitoring\n");
 		wpa_cli_quit = 1;