net.cdl

嵌入式操作系统ECOS的网络开发包

# ====================================================================
#
#      net.cdl
#
#      Networking configuration data
#
# ====================================================================
#####ECOSPDCOPYRIGHTBEGIN####
#
# Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
# All Rights Reserved.
#
# Permission is granted to use, copy, modify and redistribute this
# file.
#
#####ECOSPDCOPYRIGHTEND####
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      gthomas
# Original data:  gthomas
# Contributors:
# Date:           1999-11-29
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_NET {
    display       "Basic networking framework"
    doc           ref/net-common-tcpip.html
    include_dir   .
    requires      CYGPKG_IO
    requires      CYGPKG_ISOINFRA
    requires      CYGINT_ISO_C_TIME_TYPES
    requires      CYGINT_ISO_STRERROR
    requires      CYGINT_ISO_ERRNO
    requires      CYGINT_ISO_ERRNO_CODES
    requires      CYGINT_ISO_MALLOC
    requires      CYGINT_ISO_STRING_BSD_FUNCS
    description   "Basic networking support, including TCP/IP."

    cdl_interface     CYGPKG_NET_DRIVER_FRAMEWORK {
        display   "Suitable driver framework interface, used by network package"
        description "
          In order to decouple the network stack from driver specifics, the
          driver framework must be defined in a separate package."
    }

    # Commonly exported infrastructure
    implements    CYGINT_ISO_NETDB_PROTO
    implements    CYGINT_ISO_NETDB_SERV
    requires      { CYGBLD_ISO_NETDB_PROTO_HEADER == "<net/netdb.h>" }
    requires      { CYGBLD_ISO_NETDB_SERV_HEADER == "<net/netdb.h>" }

    cdl_interface CYGPKG_NET_STACK {
        display   "Suitable network stack implementation, used by network package"
        description "
          In order to decouple the network support from most stack specifics, the
          actual stack implementation must be defined in a separate package."
    }
    requires      { CYGPKG_NET_STACK == 1 }
    define_proc {
        puts $::cdl_header "#include <pkgconf/system.h>"
        puts $::cdl_header "#include CYGDAT_NET_STACK_CFG"
    }

    cdl_interface CYGPKG_NET_STACK_INET {
        display   "Network stack support for IPv4"
    }
    cdl_interface CYGPKG_NET_STACK_INET6 {
        display   "Network stack support for IPv6"
    }

    cdl_component CYGPKG_NET_INET {
        display       "INET support"
        active_if     CYGPKG_NET_STACK_INET
        flavor        bool
        no_define
        default_value 1
        description   "
            This option enables support for INET (IP) network processing."
        define INET
        compile \
            inet_addr.c \
            inet_ntoa.c \
            inet_ntop.c \
            inet_pton.c \
            bootp_support.c \
            dhcp_support.c \
            dhcp_prot.c \
            network_support.c \
            getproto.c \
            getserv.c 
        compile   getaddrinfo.c \
            ifaddrs.c

        cdl_option CYGPKG_NET_INET6 {
            display       "IPv6 support"
            active_if     CYGPKG_NET_STACK_INET6
            requires      CYGINT_IO_ETH_MULTICAST
            flavor        bool
            default_value 0
            description   "
                This option enables support for IPv6 networks."
            define INET6
        }

        cdl_option CYGSEM_NET_ROUTING {
            display "Multicast routing support"
            flavor  bool
            no_define
            default_value 0
            description   "
                This option enables support for packet routing."
            define MROUTING
        }

        cdl_option CYGSEM_NET_RANDOMID {
            display "Use random sequence for IP packet identifiers"
            flavor  bool
            no_define
            default_value 0
            description   "
                This option enables the use of random IP packet sequence
            identifiers, rather than a purely sequential sequence.  It is
            believed that use of random identifiers improves security, at
            a fairly substantial computational overhead."
            define RANDOM_IP_ID
        }

    }

    cdl_component CYGPKG_NET_TFTP {
        display        "TFTP (RFC-1350) support"
        requires       CYGPKG_NET_INET
        flavor         bool
        default_value  1
        compile        tftp_client.c \
                       tftp_server.c
        description    "
          This option provides additional library support for
          the TFTP (Trivial File Transfer Protocol)."

        cdl_option CYGPKG_NET_TFTPD_THREAD_PRIORITY {
            display "Priority level for TFTP daemon thread."
            flavor  data
            default_value 10
            description   "
            This option allows the thread priority level used by the
            TFTP server thread to be adjusted by the user.  It should be set
            high enough that sufficient CPU resources are available to
            process network data, but may be adjusted so that application
            threads can have precedence over TFTP server processing."
        }

        cdl_option CYGPKG_NET_TFTP_FILE_ACCESS {
            display       "File I/O functions for TFTP server"
            flavor        bool
            default_value 1
            compile       tftp_dummy_file.c
            description   "
              Minimal in-memory file I/O support for TFTP server."
        }
    }

    cdl_component CYGPKG_NET_DHCP {
        display "Use full DHCP instead of BOOTP"
        requires       CYGPKG_NET_INET
        active_if (CYGHWR_NET_DRIVERS > 0)
        flavor bool
        default_value 1
        description "
            Provide DHCP for initializing the IP address
            of network interfaces.  The DHCP client is capable of falling
            back to BOOTP usage if the server does not support DHCP, so it
            should never be necessary to disable this option.  However,
            depending on other configuration the DHCP client may provide or
            require a kernel thread of its own; this consumes quite a lot
            of resource which a BOOTP solution does not require."

        cdl_option CYGOPT_NET_DHCP_DHCP_THREAD {
            display "DHCP management thread"
            flavor bool
            default_value 1
            description "
                Provide a separate thread to renew DHCP leases; otherwise
                the application MUST periodically examine the semaphore
                dhcp_needs_attention and call dhcp_bind() if it is
                signalled.  If enabled, this thread does all that for you.
                Independent of this option, initialization of the
                interfaces still occurs in init_all_network_interfaces()
                and your startup code must call that.  It will start the
                DHCP management thread if necessary.  If a lease fails to
                be renewed, the management thread will shut down all
                interfaces and attempt to initialize all the interfaces
                again from scratch.  This may cause application problems,
                in which case managing the DHCP state in an application
                aware thread is recommended.  See comments in dhcp.h"
        }

        cdl_option CYGOPT_NET_DHCP_DHCP_THREAD_PARAM {
            display "DHCP management thread loops forever"
            flavor  data
            default_value 1
            active_if CYGOPT_NET_DHCP_DHCP_THREAD
            description "
                If the parameter is nonzero, it loops forever; if zero,
                the thread exits if a lease expires, and the application
                must detect this and tidy up or reboot the whole machine."
        }

        cdl_option CYGPKG_NET_DHCP_THREAD_PRIORITY {
            display "DHCP management thread priority"
            flavor  data
            default_value CYGPKG_NET_THREAD_PRIORITY + 1
            active_if CYGOPT_NET_DHCP_DHCP_THREAD
            description "
            This option sets the thread priority level used by the DHCP
            management thread.  It should be high enough that it can run
            when necessary, but it does not need to be as high as the
            network thread itself."
        }
    }

    cdl_component CYGPKG_NET_IPV6_ROUTING {
        display       "Options controlling IPv6 routing"
        active_if     CYGPKG_NET_INET6
        flavor        bool
        default_value 1
        description "
            Various options which control how routing is done for the
            IPv6 enabled interfaces."

        cdl_component CYGOPT_NET_IPV6_ROUTING_THREAD {
            display       "Thread for IPv6 routing"
            flavor        bool
            default_value 1
            description "
                Provide a separate thread to send router solicitation
                messages."

            compile ipv6_routing_thread.c

            cdl_option CYGINT_NET_IPV6_ROUTING_THREAD_PRIORITY {
                display       "IPv6 routing thread priority"
                flavor        data
                default_value CYGPKG_NET_THREAD_PRIORITY + 1
                description "
                    This option sets the thread priority level used by the IPv6
                    routing thread.  It should be high enough that it can run
                    when necessary, but it does not need to be as high as the
                    network thread itself."
            }

            cdl_option CYGINT_NET_IPV6_ROUTING_THREAD_PERIOD {
                display       "IPv6 routing thread rate"
                flavor        data
                default_value 5*60
                description "
                    This option sets the rate at which router solicitations will
                    be sent out by the routing thread (in seconds)."
            }
        }
    }

    cdl_component CYGPKG_NET_DEBUG {
        display       "Debug output"
        default_value 0 
        description   "
                This component controls whether there is diagnostic output
                for stack operations. Options within this component allow
                even more verbose output for certain areas."

        cdl_option CYGDBG_NET_DHCP_CHATTER {
                display       "Extra debug output for DHCP"
                default_value 0
        }
    }

    cdl_option CYGDBG_NET_TIMING_STATS {
        display       "Network timing statistics"
        default_value 0
        description   "
                This component controls whether there is diagnostic 
                information about how long memcpy, malloc, mbuf_alloc
                etc take to perform."
    }

    cdl_component CYGPKG_NET_OPTIONS {
        display "Networking support build options"
        flavor  none
        no_define

        cdl_option CYGPKG_NET_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            default_value { "-D_KERNEL -D__ECOS -D__INSIDE_NET" }
            description   "
                This option modifies the set of compiler flags for
                building the networking package.
                These flags are used in addition
                to the set of global flags."
        }

        cdl_option CYGPKG_NET_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the networking package. These flags are removed from
                the set of global flags if present."
        }
    }

    cdl_component CYGPKG_NET_BUILD_TESTS {
        display "Testing options"
        flavor  none
        no_define
        description "
                This component contains options related to testing the network
                stack."

        cdl_option CYGPKG_NET_BUILD_HW_TESTS {
            display "Build hardware networking tests (demo programs)"