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# ====================================================================
#
#      openbsd_net.cdl
#
#      Networking configuration data
#
# ====================================================================
# ####ECOSPDCOPYRIGHTBEGIN####                                    
# -------------------------------------------                     
# This file is part of eCos, the Embedded Configurable Operating System.
# Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.   
#
# 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_OPENBSD_STACK {
    display       "OpenBSD TCP/IP Stack"
    parent        CYGPKG_NET
    doc           ref/tcpip-openbsd.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."

    implements    CYGPKG_NET_STACK
    implements    CYGPKG_NET_STACK_INET
    # Note: separating the stack implementation from the common support leads
    # to some rather incestious config file relationships.
    define_proc {
        puts $::cdl_system_header "/***** Networking stack proc output start *****/"
        puts $::cdl_header "#include <pkgconf/net.h>"
        puts $::cdl_system_header "#define CYGDAT_NET_STACK_CFG <pkgconf/net_openbsd_stack.h>"
        puts $::cdl_system_header "/***** Networking stack proc output end *****/"
    }


    # Export our types to <sys/types.h>
    implements    CYGINT_ISO_BSDTYPES
    requires      { CYGBLD_ISO_BSDTYPES_HEADER == "<sys/bsdtypes.h>" }
    
    compile ecos/support.c \
        ecos/synch.c \
        ecos/timeout.c \
        ecos/init.cxx \
        sys/kern/uipc_mbuf.c \
        sys/kern/uipc_domain.c \
        sys/kern/uipc_socket.c \
        sys/kern/uipc_socket2.c \
        sys/kern/kern_subr.c \
        sys/net/if.c \
        sys/net/rtsock.c \
        sys/net/raw_cb.c \
        sys/net/raw_usrreq.c \
        sys/net/route.c \
        sys/net/radix.c \
        sys/net/if_ethersubr.c \
        sys/net/if_loop.c \
        sys/netinet/igmp.c \
        sys/netinet/raw_ip.c \
        sys/netinet/in.c  \
        sys/netinet/in_cksum.c \
        sys/netinet/in_pcb.c \
        sys/netinet/in_proto.c \
        sys/netinet/ip_id.c \
        sys/netinet/ip_icmp.c \
        sys/netinet/ip_input.c \
        sys/netinet/ip_output.c \
        sys/netinet/if_ether.c \
        sys/netinet/udp_usrreq.c \
        sys/netinet/tcp_input.c \
        sys/netinet/tcp_output.c \
        sys/netinet/tcp_subr.c \
        sys/netinet/tcp_debug.c \
        sys/netinet/tcp_usrreq.c \
        sys/netinet/tcp_timer.c

    cdl_option CYGPKG_NET_API_LOCAL {
        display "Implement the socket API locally"
        flavor bool
        active_if !CYGPKG_IO_FILEIO
        default_value 1
        implements CYGINT_ISO_SELECT
        
        compile sys/kern/uipc_syscalls.c \
        sys/kern/sys_socket.c \
        sys/kern/sys_generic.c \
        lib/socket.c \
        lib/close.c \
        lib/read.c \
        lib/write.c \
        lib/bind.c \
        lib/connect.c \
        lib/accept.c \
        lib/listen.c \
        lib/shutdown.c \
        lib/sendto.c \
        lib/recvfrom.c \
        lib/recv.c \
        lib/getsockname.c \
        lib/getpeername.c \
        lib/getsockopt.c \
        lib/setsockopt.c \
        lib/ioctl.c \
        lib/select.c

        description "
            This option controls support for the network-stack supplied
            API."
    }

    cdl_option CYGPKG_NET_API_FILEIO {
        display "Implement the socket API via Fileio package"
        active_if CYGPKG_IO_FILEIO
        default_value 1

        compile -library=libextras.a sys/kern/sockio.c

        description "
            This option controls support for the fileio subsystem supplied API."
    }

    cdl_component CYGPKG_NET_OPENBSD_INET {
        display       "INET support"
        active_if     CYGPKG_NET_INET
        flavor        bool
        no_define
        default_value 1
        description   "
            This option enables support for INET (IP) network processing."

# Placeholder only - not implemented yet
##        cdl_option CYGPKG_NET_OPENBSD_INET6 {
##            display       "IPv6 support"
##            active_if     CYGPKG_NET_INET6
##            flavor        bool
##            default_value 0
##            description   "
##                This option enables support for IPv6 networking."
##        }
    }

#    cdl_option CYGPKG_NET_SYSCTL {
#        display "Support BSD 'sysctl()' function"
#        flavor  bool
#        default_value 0
#        description   "
#            This option includes support for the 'sysctl()' functions."
#    }

    cdl_option CYGPKG_NET_NBPF {
        display "Number of BPF filters"
        flavor  data
        default_value 0
# Placeholder only - not implemented yet
        legal_values  0
# Placeholder only - not implemented yet
        description   "
            This option controls the number of active BPF filters."
        define NBPFILTER
    }

    cdl_component CYGPKG_NET_BRIDGE {
         display "Built-in ethernet bridge code"
         default_value 0
         implements CYGINT_NET_BRIDGE_HANDLER
     no_define
         description   "
             This option controls whether to include the built-in code for
             the Ethernet bridge."
     compile sys/net/if_bridge.c \
             sys/net/bridgestp.c

         cdl_option CYGNUM_NET_BRIDGES {
             display "Number of Ethernet bridges"
             flavor  data
             default_value 1
             legal_values 1 to 999999
         }

         cdl_option CYGPKG_NET_BRIDGE_STP_CODE {
             display "Include code for Spanning Tree Protocol"
             default_value 0
             description "
                 This option controls whether to include the code for
                 the Spanning Tree Protocol on Ethernet bridge."
         }
    }

    cdl_interface CYGINT_NET_BRIDGE_HANDLER {
        display "Support for ethernet bridges in the IP stack"
        define NBRIDGE
            description "
              This interface controls whether calls to bridge code are made
              from the IP stack; these are needed if the built-in bridge code
              is used, but they can also be enabled in order to call different
              bridge code from an external component."
    }

    cdl_option CYGPKG_NET_NGIF {
        display "Number of GIF things"
        flavor  data
        default_value 0
# Placeholder only - not implemented yet
        legal_values  0
# Placeholder only - not implemented yet
        description   "
            This option controls the number of active GIF things."
        define NGIF
    }

    cdl_option CYGPKG_NET_NLOOP {
        display "Number of loopback interfaces"
        flavor  data
        default_value 1
        requires { (CYGPKG_NET_NLOOP > 1) ? CYGPKG_LIBC_STDIO : 1  }
        description   "
            This option controls the number of loopback, i.e. local, interfaces.
            There is seldom need for this value to be anything other than one.
            If a different value is required, then the C library STDIO package
            is required for sprintf()."
        define NLOOP
    }

    cdl_option CYGPKG_NET_MEM_USAGE {
        display "Memory designated for networking buffers."
        flavor  data
        default_value 256*1024
        description   "
            This option controls the amount of memory pre-allocated
        for buffers used by the networking code."
    }

    cdl_option CYGPKG_NET_NUM_WAKEUP_EVENTS {
        display "Number of supported pending network events"
        flavor  data
        default_value 8
        description   "
            This option controls the number of pending network events
        used by the networking code."
    }

    cdl_option CYGPKG_NET_THREAD_PRIORITY {
        display "Priority level for backgound network processing."
        flavor  data
        default_value 7
        description   "
            This option allows the thread priority level used by the
        networking stack 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 network processing."
    }

    cdl_option CYGPKG_NET_FAST_THREAD_PRIORITY {
        display "Priority level for fast network processing."
        flavor  data
        default_value CYGPKG_NET_THREAD_PRIORITY - 1
        description   "
            This option sets the thread priority level used by the fast
        network thread.  The fast network thread runs often but briefly, to
        service network device interrupts and network timeout events.  This
        thread should have higher priority than the background network
        thread.  It is reasonable to set this thread's priority higher than
        application threads for best network throughput, or to set it lower
        than application threads for best latency for those application
        threads themselves, potentially at a cost to network throughput."
    }

    cdl_component CYGPKG_NET_FAST_THREAD_TICKLE_DEVS {
        display "Fast network processing thread 'tickles' drivers"
        default_value 1
        description "
            If this is enabled, the fast network thread will tickle the
            device(s) periodically, to unblock them when the hardware has
            become wedged due to a lost interrupt or other hardware
            race-condition type problem.
            This is not necessary if a networked app is running which sends
            packets itself often - or
            uses TCP, or any similar protocol which exchanges keep-alive
            packets periodically and often enough.
            Trying to send a packet passes control into the driver; this is
            sufficient to detect and unblock jammed hardware."

        cdl_option CYGNUM_NET_FAST_THREAD_TICKLE_DEVS_DELAY {
            display "Delay in kernel clocks of tickle loop"
            flavor data
            default_value 50
            description "
                The default is 50, which will usually mean a delay between
                tests for 'stuck' devices of 500mS, that is half a second.
                The overhead only applies if no network activity occurred,
                so it may be acceptable to make this value very small,
                where high CPU load does not matter during network idle
                periods, or very large if your application tries often to
                send packets itself."
        }
    }

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

        cdl_option CYGPKG_NET_OPENBSD_STACK_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_OPENBSD_STACK_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."
        }
    }
}