From 84a180d585686cda693bf8c6ed6b86f7c5dd5eee Mon Sep 17 00:00:00 2001
From: YOUR_NAME <liujiandong1@huawei.com>
Date: Mon, 23 Aug 2021 19:31:39 +0800
Subject: [PATCH] feat: add interface of dhcp_is_bound

add interface of dhcp_is_bound

close: #I46W08

Signed-off-by: liujiandong <liujiandong1@huawei.com>
---
 .../net/lwip-2.1/enhancement/src/fixme.c      | 21 ++++++++++
 .../net/lwip-2.1/porting/include/lwip/dhcp.h  | 38 +++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 components/net/lwip-2.1/porting/include/lwip/dhcp.h

diff --git a/components/net/lwip-2.1/enhancement/src/fixme.c b/components/net/lwip-2.1/enhancement/src/fixme.c
index 5985736b..19e83eb9 100644
--- a/components/net/lwip-2.1/enhancement/src/fixme.c
+++ b/components/net/lwip-2.1/enhancement/src/fixme.c
@@ -39,6 +39,27 @@
 #define NETIFAPI_VAR_ALLOC(name)    API_VAR_ALLOC(struct netifapi_msg, MEMP_NETIFAPI_MSG, name, ERR_MEM)
 #define NETIFAPI_VAR_FREE(name)     API_VAR_FREE(MEMP_NETIFAPI_MSG, name)
 
+#if LWIP_DHCP
+#include <lwip/dhcp.h>
+#include <lwip/prot/dhcp.h>
+
+err_t dhcp_is_bound(struct netif *netif)
+{
+    struct dhcp *dhcp = NULL;
+
+    LWIP_ERROR("netif != NULL", (netif != NULL), return ERR_ARG);
+
+    dhcp = netif_dhcp_data(netif);
+    LWIP_ERROR("netif->dhcp != NULL", (dhcp != NULL), return ERR_ARG);
+
+    if (dhcp->state == DHCP_STATE_BOUND) {
+        return ERR_OK;
+    } else {
+        return ERR_INPROGRESS;
+    }
+}
+#endif /* LWIP_DHCP */
+
 static struct netif *netif_find_by_name(const char *name)
 {
     struct netif *netif = NULL;
diff --git a/components/net/lwip-2.1/porting/include/lwip/dhcp.h b/components/net/lwip-2.1/porting/include/lwip/dhcp.h
new file mode 100644
index 00000000..70f9b9bf
--- /dev/null
+++ b/components/net/lwip-2.1/porting/include/lwip/dhcp.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _LWIP_PORTING_DHCP_H_
+#define _LWIP_PORTING_DHCP_H_
+
+#include_next <lwip/dhcp.h>
+
+err_t dhcp_is_bound(struct netif *netif);
+
+#endif /* _LWIP_PORTING_DHCP_H_ */