rt-thread/components/net/lwip/Kconfig

menuconfig RT_USING_LWIP
    bool "Enable light weight TCP/IP stack (lwIP)"
    select RT_USING_DEVICE
    select RT_USING_DEVICE_IPC
    default n

if RT_USING_LWIP
    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"

    endchoice

    config RT_USING_LWIP_VER_NUM
        hex
        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