menu "Network stack"

menu "light weight TCP/IP stack"
config RT_USING_LWIP
    bool "Enable lwIP stack"
    default n

    if RT_USING_LWIP
        choice 
            prompt "lwIP version"
            default RT_USING_LWIP141
            help 
                Select the lwIP version

            config RT_USING_LWIP141
                bool "lwIP v1.4.1"

            config RT_USING_LWIP200
                bool "lwIP v2.0.0"

            config RT_USING_LWIP202
                bool "lwIP v2.0.2"
        endchoice

        config RT_LWIP_IGMP
            bool "IGMP protocol"
            default n

        config RT_LWIP_ICMP
            bool "ICMP protocol"
            default y

        config RT_LWIP_SNMP
            bool "SNMP protocol"
            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

                config LWIP_USING_DHCPD
                    bool "Enable DHCP server"
                    default y
            endif

        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

        config RT_LWIP_PPPOE
            bool "PPPoE protocol"
            default n

        config RT_LWIP_PPPOS
            bool "PPPoS protocol"
            default n

        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 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 1024

        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 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 "netif 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
    endif

endmenu

source "$RTT_DIR/components/net/freemodbus/KConfig"

if RT_USING_LWIP
config RT_USING_NETUTILS
    bool "Enable net utils"
    default n

#endif

endmenu