Kconfig

menuconfig RT_USING_LWIP
    bool "LwIP: light weight TCP/IP stack"
    select RT_USING_DEVICE
    select RT_USING_DEVICE_IPC
    select SAL_USING_LWIP if RT_USING_SAL
    default n

if RT_USING_LWIP
    config RT_USING_LWIP_LOCAL_VERSION
        bool "Use LwIP local version only"
        default n
        help
            If don't select this option, both local version and upstream
            version can be selected. If select this option, only local version
            can be selected.
    choice
        prompt "lwIP version"
        default RT_USING_LWIP203
        help
            Select the lwIP version

        config RT_USING_LWIP141
            bool "lwIP v1.4.1"

        config RT_USING_LWIP203
            bool "lwIP v2.0.3"

        config RT_USING_LWIP212
            bool "lwIP v2.1.2"

        # online version
        if !RT_USING_LWIP_LOCAL_VERSION
            config RT_USING_LWIP_LATEST
                bool "lwIP latest"
                select PKG_USING_LWIP
        endif
    endchoice

    config RT_USING_LWIP_VER_NUM
        hex
        default 0x99999    if RT_USING_LWIP_LATEST
        default 0x20102    if RT_USING_LWIP212
        default 0x20003    if RT_USING_LWIP203
        default 0x10401    if RT_USING_LWIP141

    if (RT_USING_LWIP_VER_NUM >= 0x20000)
        config RT_USING_LWIP_IPV6
            bool "IPV6 protocol"
            default n
            select NETDEV_USING_IPV6
            select NETDEV_IPV6_SCOPES if RT_USING_LWIP212
    endif

    config RT_LWIP_MEM_ALIGNMENT
        int "Memory alignment"
        default 8 if ARCH_CPU_64BIT
        default 4

    config RT_LWIP_IGMP
        bool "IGMP protocol"
        default y

    config RT_LWIP_ICMP
        bool "ICMP protocol"
        default y

    config RT_LWIP_SNMP
        bool "SNMP protocol"
        select RT_LWIP_STATS
        default n

    config RT_LWIP_DNS
        bool "Enble DNS for name resolution"
        select RT_LWIP_UDP
        default y

    config RT_LWIP_DHCP
        bool "Enable alloc ip address through DHCP"
        select RT_LWIP_UDP
        default y

        if RT_LWIP_DHCP
            config IP_SOF_BROADCAST
                int "SOF broadcast"
                default 1

            config IP_SOF_BROADCAST_RECV
                int "SOF broadcast recv"
                default 1
        endif

    menu "Static IPv4 Address"
            config RT_LWIP_IPADDR
                string "IPv4: IP address"
                default 192.168.1.30

            config RT_LWIP_GWADDR
                string "IPv4: Gateway address"
                default 192.168.1.1

            config RT_LWIP_MSKADDR
                string "IPv4: Mask address"
                default 255.255.255.0
    endmenu

    config RT_LWIP_UDP
        bool "UDP protocol"
        default y

    config RT_LWIP_TCP
        bool "TCP protocol"
        default y

    config RT_LWIP_RAW
        bool "RAW protocol"
        default n

    config RT_LWIP_PPP
        bool "PPP protocol"
        default n

    if RT_LWIP_PPP
        config RT_LWIP_PPPOE
            bool "PPPoE protocol"
            default n

        config RT_LWIP_PPPOS
            bool "PPPoS protocol"
            default n
    endif

    config RT_MEMP_NUM_NETCONN
        int "the number of struct netconns"
        default 8

    config RT_LWIP_PBUF_NUM
        int "the number of PBUF"
        default 16

    config RT_LWIP_RAW_PCB_NUM
        int "the number of raw connection"
        default 4

    config RT_LWIP_UDP_PCB_NUM
        int "the number of UDP socket"
        default 8 if RT_USING_DFS_NFS
        default 4

    if RT_LWIP_TCP
    config RT_LWIP_TCP_PCB_NUM
        int "the number of TCP socket"
        default 4

    config RT_LWIP_TCP_SEG_NUM
        int "the number of TCP segment"
        default 40

    config RT_LWIP_TCP_SND_BUF
        int "the size of send buffer"
        default 8196

    config RT_LWIP_TCP_WND
        int "the size of TCP send window"
        default 8196
    endif

    config RT_LWIP_TCPTHREAD_PRIORITY
        int "the priority level value of lwIP thread"
        default 10

    config RT_LWIP_TCPTHREAD_MBOX_SIZE
        int "the number of mail in the lwIP thread mailbox"
        default 8

    config RT_LWIP_TCPTHREAD_STACKSIZE
        int "the stack size of lwIP thread"
        default 2048 if ARCH_CPU_64BIT
        default 1024

    config LWIP_NO_RX_THREAD
        bool "Not use Rx thread"
        default n

    config LWIP_NO_TX_THREAD
        bool "Not use Tx thread"
        default n

    config RT_LWIP_ETHTHREAD_PRIORITY
        int "the priority level value of ethernet thread"
        default 12

    config RT_LWIP_ETHTHREAD_STACKSIZE
        int "the stack size of ethernet thread"
        default 2048 if ARCH_CPU_64BIT
        default 1024

    config RT_LWIP_ETHTHREAD_MBOX_SIZE
        int "the number of mail in the ethernet thread mailbox"
        default 8

    config RT_LWIP_REASSEMBLY_FRAG
        bool "Enable IP reassembly and frag"
        default n

    config LWIP_NETIF_STATUS_CALLBACK
        int "Enable netif status callback"
        default 1

    config LWIP_NETIF_LINK_CALLBACK
        int "Enable netif link status callback"
        default 1

    config SO_REUSE
        int "Enable SO_REUSEADDR option"
        default 1

    config LWIP_SO_RCVTIMEO
        int "Enable receive timeout for sockets/netconns and SO_RCVTIMEO processing."
        default 1

    config LWIP_SO_SNDTIMEO
        int "Enable send timeout for sockets/netconns and SO_SNDTIMEO processing."
        default 1

    config LWIP_SO_RCVBUF
        int "Enable SO_RCVBUF processing"
        default 1

    config LWIP_SO_LINGER
        int "Enable SO_LINGER processing"
        default 0

    config RT_LWIP_NETIF_LOOPBACK
        bool "Enable netif loopback"
        default n

    config LWIP_NETIF_LOOPBACK
        int
        default 1 if RT_LWIP_NETIF_LOOPBACK
        default 0 if !RT_LWIP_NETIF_LOOPBACK

    config RT_LWIP_STATS
        bool "Enable lwIP statistics"
        default n

    config RT_LWIP_USING_HW_CHECKSUM
        bool "Enable hardware checksum"
        default n

    config RT_LWIP_USING_PING
        bool "Enable ping features"
        default y
        select NETDEV_USING_PING
        select RT_LWIP_ICMP
        select RT_LWIP_RAW

    config LWIP_USING_DHCPD
        bool "Enable DHCP server"
        default n

    if LWIP_USING_DHCPD
        config DHCPD_SERVER_IP
            string "DHCPD SERVER IP address"
            default 192.168.169.1

        config DHCPD_USING_ROUTER
            bool "alloc gateway ip for router"
            default y

        config LWIP_USING_CUSTOMER_DNS_SERVER
            bool "Enable customer DNS server config"
            default n
        if LWIP_USING_CUSTOMER_DNS_SERVER
            config DHCP_DNS_SERVER_IP
                string "Custom DNS server IP address"
                default 1.1.1.1
        endif
    endif

    menuconfig RT_LWIP_DEBUG
        bool "Enable lwIP Debugging Options"
        default n

    if RT_LWIP_DEBUG

        config RT_LWIP_SYS_DEBUG
            bool "Enable Debugging of sys.c"
            default n

        config RT_LWIP_ETHARP_DEBUG
            bool "Enable Debugging of etharp.c"
            default n

        config RT_LWIP_PPP_DEBUG
            bool "Enable Debugging of PPP"
            default n

        config RT_LWIP_MEM_DEBUG
            bool "Enable Debugging of mem.c"
            default n

        config RT_LWIP_MEMP_DEBUG
            bool "Enable Debugging of memp.c"
            default n

        config RT_LWIP_PBUF_DEBUG
            bool "Enable Debugging of pbuf.c"
            default n

        config RT_LWIP_API_LIB_DEBUG
            bool "Enable Debugging of api_lib.c"
            default n

        config RT_LWIP_API_MSG_DEBUG
            bool "Enable Debugging of api_msg.c"
            default n

        config RT_LWIP_TCPIP_DEBUG
            bool "Enable Debugging of tcpip.c"
            default n

        config RT_LWIP_NETIF_DEBUG
            bool "Enable Debugging of netif.c"
            default n

        config RT_LWIP_SOCKETS_DEBUG
            bool "Enable Debugging of sockets.c"
            default n

        config RT_LWIP_DNS_DEBUG
            bool "Enable Debugging of DNS"
            default n

        config RT_LWIP_AUTOIP_DEBUG
            bool "Enable Debugging of autoip.c"
            default n

        config RT_LWIP_DHCP_DEBUG
            bool "Enable Debugging of dhcp.c"
            default n

        config RT_LWIP_IP_DEBUG
            bool "Enable Debugging of IP"
            default n

        config RT_LWIP_IP_REASS_DEBUG
            bool "Enable debugging in ip_frag.c for both frag & reass"
            default n

        config RT_LWIP_ICMP_DEBUG
            bool "Enable Debugging of icmp.c"
            default n

        config RT_LWIP_IGMP_DEBUG
            bool "Enable Debugging of igmp.c"
            default n

        config RT_LWIP_UDP_DEBUG
            bool "Enable Debugging of UDP"
            default n

        config RT_LWIP_TCP_DEBUG
            bool "Enable Debugging of TCP"
            default n

        config RT_LWIP_TCP_INPUT_DEBUG
            bool "Enable Debugging of tcp_in.c"
            default n

        config RT_LWIP_TCP_OUTPUT_DEBUG
            bool "Enable Debugging of tcp_out.c"
            default n

        config RT_LWIP_TCP_RTO_DEBUG
            bool "Enable debugging in TCP for retransmit"
            default n

        config RT_LWIP_TCP_CWND_DEBUG
            bool "Enable debugging for TCP congestion window"
            default n

        config RT_LWIP_TCP_WND_DEBUG
            bool "Enable debugging in tcp_in.c for window updating"
            default n

        config RT_LWIP_TCP_FR_DEBUG
            bool "Enable debugging in tcp_in.c for fast retransmit"
            default n

        config RT_LWIP_TCP_QLEN_DEBUG
            bool "Enable debugging for TCP queue lengths"
            default n

        config RT_LWIP_TCP_RST_DEBUG
            bool "Enable debugging for TCP with the RST message"
            default n

    endif

endif