diff --git a/lwip.gni b/lwip.gni
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+# 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.
+
+LWIPDIR = "//third_party/lwip/src"
+
+LWIP_INCLUDE_DIRS = [ "$LWIPDIR/include" ]
+
+# COREFILES, CORE4FILES: The minimum set of files needed for lwIP.
+COREFILES = [
+  "$LWIPDIR/core/init.c",
+  "$LWIPDIR/core/def.c",
+  "$LWIPDIR/core/dns.c",
+  "$LWIPDIR/core/inet_chksum.c",
+  "$LWIPDIR/core/ip.c",
+  "$LWIPDIR/core/mem.c",
+  "$LWIPDIR/core/memp.c",
+  "$LWIPDIR/core/netif.c",
+  "$LWIPDIR/core/pbuf.c",
+  "$LWIPDIR/core/raw.c",
+  "$LWIPDIR/core/stats.c",
+  "$LWIPDIR/core/sys.c",
+  "$LWIPDIR/core/altcp.c",
+  "$LWIPDIR/core/altcp_alloc.c",
+  "$LWIPDIR/core/altcp_tcp.c",
+  "$LWIPDIR/core/tcp.c",
+  "$LWIPDIR/core/tcp_in.c",
+  "$LWIPDIR/core/tcp_out.c",
+  "$LWIPDIR/core/timeouts.c",
+  "$LWIPDIR/core/udp.c",
+]
+
+CORE4FILES = [
+  "$LWIPDIR/core/ipv4/autoip.c",
+  "$LWIPDIR/core/ipv4/dhcp.c",
+  "$LWIPDIR/core/ipv4/etharp.c",
+  "$LWIPDIR/core/ipv4/icmp.c",
+  "$LWIPDIR/core/ipv4/igmp.c",
+  "$LWIPDIR/core/ipv4/ip4_frag.c",
+  "$LWIPDIR/core/ipv4/ip4.c",
+  "$LWIPDIR/core/ipv4/ip4_addr.c",
+]
+
+CORE6FILES = [
+  "$LWIPDIR/core/ipv6/dhcp6.c",
+  "$LWIPDIR/core/ipv6/ethip6.c",
+  "$LWIPDIR/core/ipv6/icmp6.c",
+  "$LWIPDIR/core/ipv6/inet6.c",
+  "$LWIPDIR/core/ipv6/ip6.c",
+  "$LWIPDIR/core/ipv6/ip6_addr.c",
+  "$LWIPDIR/core/ipv6/ip6_frag.c",
+  "$LWIPDIR/core/ipv6/mld6.c",
+  "$LWIPDIR/core/ipv6/nd6.c",
+]
+
+# APIFILES: The files which implement the sequential and socket APIs.
+APIFILES = [
+  "$LWIPDIR/api/api_lib.c",
+  "$LWIPDIR/api/api_msg.c",
+  "$LWIPDIR/api/err.c",
+  "$LWIPDIR/api/if_api.c",
+  "$LWIPDIR/api/netbuf.c",
+  "$LWIPDIR/api/netdb.c",
+  "$LWIPDIR/api/netifapi.c",
+  "$LWIPDIR/api/sockets.c",
+  "$LWIPDIR/api/tcpip.c",
+]
+
+# NETIFFILES: Files implementing various generic network interface functions
+NETIFFILES = [
+  "$LWIPDIR/netif/ethernet.c",
+  "$LWIPDIR/netif/bridgeif.c",
+  "$LWIPDIR/netif/bridgeif_fdb.c",
+  "$LWIPDIR/netif/slipif.c",
+]
+
+# SIXLOWPAN: 6LoWPAN
+SIXLOWPAN = [
+  "$LWIPDIR/netif/lowpan6_common.c",
+  "$LWIPDIR/netif/lowpan6.c",
+  "$LWIPDIR/netif/lowpan6_ble.c",
+  "$LWIPDIR/netif/zepif.c",
+]
+
+# PPPFILES: PPP
+PPPFILES = [
+  "$LWIPDIR/netif/ppp/auth.c",
+  "$LWIPDIR/netif/ppp/ccp.c",
+  "$LWIPDIR/netif/ppp/chap-md5.c",
+  "$LWIPDIR/netif/ppp/chap_ms.c",
+  "$LWIPDIR/netif/ppp/chap-new.c",
+  "$LWIPDIR/netif/ppp/demand.c",
+  "$LWIPDIR/netif/ppp/eap.c",
+  "$LWIPDIR/netif/ppp/ecp.c",
+  "$LWIPDIR/netif/ppp/eui64.c",
+  "$LWIPDIR/netif/ppp/fsm.c",
+  "$LWIPDIR/netif/ppp/ipcp.c",
+  "$LWIPDIR/netif/ppp/ipv6cp.c",
+  "$LWIPDIR/netif/ppp/lcp.c",
+  "$LWIPDIR/netif/ppp/magic.c",
+  "$LWIPDIR/netif/ppp/mppe.c",
+  "$LWIPDIR/netif/ppp/multilink.c",
+  "$LWIPDIR/netif/ppp/ppp.c",
+  "$LWIPDIR/netif/ppp/pppapi.c",
+  "$LWIPDIR/netif/ppp/pppcrypt.c",
+  "$LWIPDIR/netif/ppp/pppoe.c",
+  "$LWIPDIR/netif/ppp/pppol2tp.c",
+  "$LWIPDIR/netif/ppp/pppos.c",
+  "$LWIPDIR/netif/ppp/upap.c",
+  "$LWIPDIR/netif/ppp/utils.c",
+  "$LWIPDIR/netif/ppp/vj.c",
+  "$LWIPDIR/netif/ppp/polarssl/arc4.c",
+  "$LWIPDIR/netif/ppp/polarssl/des.c",
+  "$LWIPDIR/netif/ppp/polarssl/md4.c",
+  "$LWIPDIR/netif/ppp/polarssl/md5.c",
+  "$LWIPDIR/netif/ppp/polarssl/sha1.c",
+]
+
+# LWIPNOAPPSFILES: All LWIP files without apps
+LWIPNOAPPSFILES = COREFILES + CORE4FILES + CORE6FILES + APIFILES + NETIFFILES +
+                  PPPFILES + SIXLOWPAN
+
+# SNMPFILES: SNMPv2c agent
+SNMPFILES = [
+  "$LWIPDIR/apps/snmp/snmp_asn1.c",
+  "$LWIPDIR/apps/snmp/snmp_core.c",
+  "$LWIPDIR/apps/snmp/snmp_mib2.c",
+  "$LWIPDIR/apps/snmp/snmp_mib2_icmp.c",
+  "$LWIPDIR/apps/snmp/snmp_mib2_interfaces.c",
+  "$LWIPDIR/apps/snmp/snmp_mib2_ip.c",
+  "$LWIPDIR/apps/snmp/snmp_mib2_snmp.c",
+  "$LWIPDIR/apps/snmp/snmp_mib2_system.c",
+  "$LWIPDIR/apps/snmp/snmp_mib2_tcp.c",
+  "$LWIPDIR/apps/snmp/snmp_mib2_udp.c",
+  "$LWIPDIR/apps/snmp/snmp_snmpv2_framework.c",
+  "$LWIPDIR/apps/snmp/snmp_snmpv2_usm.c",
+  "$LWIPDIR/apps/snmp/snmp_msg.c",
+  "$LWIPDIR/apps/snmp/snmpv3.c",
+  "$LWIPDIR/apps/snmp/snmp_netconn.c",
+  "$LWIPDIR/apps/snmp/snmp_pbuf_stream.c",
+  "$LWIPDIR/apps/snmp/snmp_raw.c",
+  "$LWIPDIR/apps/snmp/snmp_scalar.c",
+  "$LWIPDIR/apps/snmp/snmp_table.c",
+  "$LWIPDIR/apps/snmp/snmp_threadsync.c",
+  "$LWIPDIR/apps/snmp/snmp_traps.c",
+]
+
+# HTTPFILES: HTTP server + client
+HTTPFILES = [
+  "$LWIPDIR/apps/http/altcp_proxyconnect.c",
+  "$LWIPDIR/apps/http/fs.c",
+  "$LWIPDIR/apps/http/http_client.c",
+  "$LWIPDIR/apps/http/httpd.c",
+]
+
+# MAKEFSDATA: MAKEFSDATA HTTP server host utility
+MAKEFSDATAFILES = [ "$LWIPDIR/apps/http/makefsdata/makefsdata.c" ]
+
+# LWIPERFFILES: IPERF server
+LWIPERFFILES = [ "$LWIPDIR/apps/lwiperf/lwiperf.c" ]
+
+# SMTPFILES: SMTP client
+SMTPFILES = [ "$LWIPDIR/apps/smtp/smtp.c" ]
+
+# SNTPFILES: SNTP client
+SNTPFILES = [ "$LWIPDIR/apps/sntp/sntp.c" ]
+
+# MDNSFILES: MDNS responder
+MDNSFILES = [ "$LWIPDIR/apps/mdns/mdns.c" ]
+
+# NETBIOSNSFILES: NetBIOS name server
+NETBIOSNSFILES = [ "$LWIPDIR/apps/netbiosns/netbiosns.c" ]
+
+# TFTPFILES: TFTP server files
+TFTPFILES = [ "$LWIPDIR/apps/tftp/tftp_server.c" ]
+
+# MQTTFILES: MQTT client files
+MQTTFILES = [ "$LWIPDIR/apps/mqtt/mqtt.c" ]
+
+# MBEDTLS_FILES: MBEDTLS related files of lwIP rep
+MBEDTLS_FILES = [
+  "$LWIPDIR/apps/altcp_tls/altcp_tls_mbedtls.c",
+  "$LWIPDIR/apps/altcp_tls/altcp_tls_mbedtls_mem.c",
+  "$LWIPDIR/apps/snmp/snmpv3_mbedtls.c",
+]
+
+# LWIPAPPFILES: All LWIP APPs
+LWIPAPPFILES =
+    SNMPFILES + HTTPFILES + LWIPERFFILES + SMTPFILES + SNTPFILES + MDNSFILES +
+    NETBIOSNSFILES + TFTPFILES + MQTTFILES + MBEDTLS_FILES
\ No newline at end of file