net: ip: igmp: Add igmp.h for definitions

Add igmp.h file to declare definitions for IGMP that are not meant te be
included by the application but can be used in e.g. tests.

Signed-off-by: Ibe Van de Veire <ibe.vandeveire@basalte.be>
(cherry picked from commit ba9eca3)

subsys/net/ip/igmp.c

@@ -22,19 +22,13 @@ LOG_MODULE_DECLARE(net_ipv4, CONFIG_NET_IPV4_LOG_LEVEL);
 #include "connection.h"
 #include "ipv4.h"
 #include "net_stats.h"
+#include "igmp.h"
 
 /* Timeout for various buffer allocations in this file. */
 #define PKT_WAIT_TIME K_MSEC(50)
 
 #define IPV4_OPT_HDR_ROUTER_ALERT_LEN 4
 
-#define IGMPV3_MODE_IS_INCLUDE        0x01
-#define IGMPV3_MODE_IS_EXCLUDE        0x02
-#define IGMPV3_CHANGE_TO_INCLUDE_MODE 0x03
-#define IGMPV3_CHANGE_TO_EXCLUDE_MODE 0x04
-#define IGMPV3_ALLOW_NEW_SOURCES      0x05
-#define IGMPV3_BLOCK_OLD_SOURCES      0x06
-
 #define IGMPV2_PAYLOAD_MIN_LEN 8
 #define IGMPV3_PAYLOAD_MIN_LEN 12
 

subsys/net/ip/igmp.h

@@ -0,0 +1,23 @@
+/**
+ * @file
+ * @brief IGMP definitions
+ * This is not to be included by the application.
+ */
+
+/*
+ * Copyright (c) 2024 Basalte bv
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __IGMP_H
+#define __IGMP_H
+
+#define IGMPV3_MODE_IS_INCLUDE        0x01
+#define IGMPV3_MODE_IS_EXCLUDE        0x02
+#define IGMPV3_CHANGE_TO_INCLUDE_MODE 0x03
+#define IGMPV3_CHANGE_TO_EXCLUDE_MODE 0x04
+#define IGMPV3_ALLOW_NEW_SOURCES      0x05
+#define IGMPV3_BLOCK_OLD_SOURCES      0x06
+
+#endif /* __IGMP_H */