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freebsd/sys/i386/conf/NOTES
Jordan K. Hubbard 100ba1a617 IP Firewall code from Daniel Boulet and J.S.Antsilevich
Submitted by:	danny ugen
1994-10-28 15:09:49 +00:00

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#
# LINT -- config file for checking all the sources, tries to pull in
# as much of the source tree as it can.
#
# This kernel is NOT MEANT to be runnable!
#
# $Id: LINT,v 1.101 1994/10/26 21:10:13 wollman Exp $
#
#
# This directive is mandatory; it defines the architecture to be
# configured for; in this case, the 386 family. You must also specify
# at least one CPU (the one you intend to run on); deleting the
# specification for CPUs you don't need to use may make parts of the
# system run faster
#
machine "i386"
cpu "I386_CPU"
cpu "I486_CPU"
cpu "I586_CPU" # a/k/a Pentium(tm)
#
# This is the ``identification'' of the kernel. Usually this should
# be the same as the name of your kernel.
#
ident LINT
#
# The `maxusers' parameter controls the static sizing of a number of
# internal system tables by a complicated formula defined in param.c.
#
maxusers 10
#
# A math emulator is mandatory if you wish to run on hardware which
# does not have a floating-point processor. Pick either the original,
# bogus (but freely-distributable) math emulator, or a much more
# fully-featured but GPL-licensed emulator taken from Linux.
#
options MATH_EMULATE #Support for x87 emulation
#options GPL_MATH_EMULATE #Support for x87 emualtion via
#new math emulator
# Enable the following (IPFIREWALL_VERBOSE optional) to enable the IP firewall
# code. This is used in conjunction with the ipfw(1) command. See the
# man page for more details.
options IPFIREWALL #firewall test
options IPFIREWALL_VERBOSE #print information about dropped packets
#
# This directive defines a number of things:
# - The compiled kernel is to be called `kernel'
# - The root filesystem might be on partition wd0a
# - The kernel can swap on wd0b and sd0b, defaulting to the former
# - Crash dumps will be written to wd0b, if possible
#
config kernel root on wd0 swap on wd0 and sd0 dumps on wd0
#####################################################################
# COMPATIBILITY OPTIONS
#
# Implement system calls compatible with 4.3BSD and older versions of
# FreeBSD.
#
options "COMPAT_43"
#
# Allow user-mode programs to manipulat their local descriptor tables.
# This option is required for the WINE Windows(tm) emulator, and is
# not used by anything else (that we know of).
#
options USER_LDT #allow user-level control of i386 ldt
#
# These three options provide support for System V Interface
# Definition-style interprocess communication, in the form of shared
# memory, semaphores, and message queues, respectively.
#
options SYSVSHM
options SYSVSEM
options SYSVMSG
#####################################################################
# DEBUGGING OPTIONS
#
# This line enables the kernel debugger, DDB, and the line following
# allocates extra space for a copy of the debugger symbol table which
# is stored in the initialized data area of the kernel. If you change
# the latter option, remove db_aout.o before compiling.
#
options DDB #Kernel debugger
options "SYMTAB_SPACE=113498" #This kernel needs LOTS of symtable
#
# KTRACE enables the system-call tracing facility ktrace(2).
#
options KTRACE #kernel tracing
#
# The DIAGNOSTIC option is used in a number of source files to enable
# extra sanity checking of internal structures. This support is not
# enabled by default because of the extra time it would take to check
# for these conditions, which can only occur as a result of
# programming errors.
#
options DIAGNOSTIC
#
# Enable the in-kernel boot-time device configuration utility (boot with -c)
#
options USERCONFIG
#####################################################################
# NETWORKING OPTIONS
#
# Protocol families:
# Only the INET (Internet) family is officially supported in FreeBSD.
# Source code for the NS (Xerox Network Service), ISO (OSI), and
# CCITT (X.25) families is provided for amusement value, although we
# try to ensure that it actually compiles.
#
options INET #Internet communications protocols
options ISO
options CCITT #X.25 network layer
options NS #Xerox NS communications protocols
#
# Network interfaces:
# The `loop' pseudo-device is mandatory when networking is enabled.
# The `ether' pseudo-device provides generic code to handle
# Ethernets; it is mandatory when a Ethernet device driver is
# configured.
# The `sl' pseudo-device implements the Serial Line IP (SLIP) service.
# The `ppp' pseudo-device implements the Point-to-Point Protocol.
#
pseudo-device ether #Generic Ethernet
pseudo-device loop #Network loop back device
pseudo-device sl 2 #Serial Line IP
pseudo-device ppp 2 #Point-to-point protocol
options NSIP #XNS over IP
options EON #ISO CLNP over IP
options TPIP #ISO TP class 4 over IP
options TPCONS #ISO TP class 0 over X.25
options LLC #X.25 link layer for Ethernets
options HDLC #X.25 link layer for serial lines
#
# Internet family options:
#
# TCP_COMPAT_42 causes the TCP code to emulate certain bugs present in
# 4.2BSD. This option should not be used unless you have a 4.2BSD
# machine and TCP connections fail.
#
# GATEWAY allows the machine to forward packets, and also configures
# larger static sizes of a number of system tables.
#
# MROUTING enables the kernel multicast packet forwarder, which works
# with mrouted(8).
#
# The `bpfilter' pseudo-device enables the Berkeley Packet Filter. Be
# aware of the legal and administrative consequences of enabling this
# option. The number of devices determines the maximum number of
# simultaneous BPF clients programs runnable.
#
options "TCP_COMPAT_42" #emulate 4.2BSD TCP bugs
options GATEWAY #internetwork gateway
options MROUTING # Multicast routing
pseudo-device bpfilter 4 #berkeley packet filter
#####################################################################
# FILESYSTEM OPTIONS
#
# Only the root, /usr, and /tmp filesystems need be statically
# compiled; everything else will be automatically loaded at mount
# time. (Exception: the UFS family---FFS, MFS, and LFS---cannot
# currently be demand-loaded.) Some people still prefer to statically
# compile other filesystems as well.
#
# NB: The LFS, PORTAL, and UNION filesystems are known to be buggy,
# and WILL panic your system if you attempt to do anything with them.
# They are included here as an incentive for some enterprising soul to
# sit down and fix them.
#
# One of these is mandatory:
options FFS #Fast filesystem
options NFS #Network File System
# The rest are optional:
options "CD9660" #ISO 9660 filesystem
options FDESC #File descriptor filesystem
options KERNFS #Kernel filesystem
options LFS #Log filesystem
options MFS #Memory File System
options MSDOSFS #MS DOS File System
options NULLFS #NULL filesystem
options PORTAL #Portal filesystem
options PROCFS #Process filesystem
options UMAPFS #UID map filesystem
options UNION #Union filesystem
#
# Disk quotas are supported when this option is enabled. If you
# change the value of this option, you must do a `make clean' in your
# kernel compile directory in order to get a working kernel.
#
options QUOTA #enable disk quotas
#####################################################################
# SCSI DEVICE CONFIGURATION
#
# The SCSI subsystem consists of the `base' SCSI code, a number of
# high-level SCSI device drivers, and the low-level host-adapter
# device drivers. The host adapters are listed in the ISA and PCI
# device configuration sections below.
#
# Note that, unlike most similar systems, the FreeBSD SCSI system
# does not wire a particular device unit number to any specific
# SCSI bus unit number. Rather, unit numbers are assigned in the
# order that the devices are found on the SCSI bus. (This means that
# if you remove a disk drive, you may have to rewrite your /etc/fstab
# file.) It is expected that this will change for FreeBSD 2.1.
#
controller scbus0 #base SCSI code
device ch0 #SCSI media changers
device sd0 #SCSI disks
device sd1
device sd2
device sd3
device st0 #SCSI tapes
device st1
device uk0 #unknown scsi devices
#
# The `cd' (SCSI read-only removable disk) driver is special in that
# the code dynamically allocates more units as they are required, with
# no limit (other than memory) to the number available.
device cd0 #SCSI CD-ROMs
#####################################################################
# MISCELLANEOUS DEVICES AND OPTIONS
#
# Of these, only the `log' device is truly mandatory. The `pty'
# device usually turns out to be ``effectively mandatory'', as it is
# required for `telnetd', `rlogind', `screen', `emacs', and `xterm',
# among others.
#
pseudo-device pty 4 #Pseudo ttys
pseudo-device speaker #Play IBM BASIC-style noises out your speaker
pseudo-device log #Kernel syslog interface (/dev/klog)
pseudo-device gzip #Exec gzipped a.out's
#####################################################################
# HARDWARE DEVICE CONFIGURATION
# ISA and EISA devices:
# Currently there is no separate support for EISA. There should be.
# Micro Channel is not supported at all.
#
# Mandatory ISA devices: isa, sc, npx
#
controller isa0
#
# Options for `isa':
#
# ALLOW_CONFLICT_IOADDR suppresses the I/O address conflict checks, so
# that the PS/2 mouse driver doesn't conflict with the console driver.
#
# ALLOW_CONFLICT_IRQ suppresses the interrupt line conflict checks, so
# that multiple devices can share the same IRQ, provided that the
# hardware supports it (it usually doesn't).
#
# BOUNCE_BUFFERS provides support for ISA DMA on machines with more
# than 16 megabytes of memory. It doesn't hurt on other machines.
# Some broken EISA and VLB hardware may need this, too.
#options ALLOW_CONFLICT_IOADDR
#options ALLOW_CONFLICT_IRQ
options BOUNCE_BUFFERS
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
#
# Options for `sc':
#
# NCONS specifies the number of virtual consoles. Specification of
# this value is mandatory. Due to a compiler bug, when compiling with
# GCC 2.6.0 this option must be a power of two.
#
# FAT_CURSOR specifies the use of a large block cursor rather than the
# hardware default underline.
#
# HARDFONTS allows the driver to load an ISO-8859-1 font to replace
# the default font in your display adapter's memory.
#
# UCONSOLE enables code to let any user get output intended for the
# console.
#
options "NCONS=8"
options "FAT_CURSOR"
options HARDFONTS
options UCONSOLE
device npx0 at isa? port "IO_NPX" irq 13 vector npxintr
#
# Optional ISA and EISA devices:
#
#
# SCSI host adapters: `aha', `ahb', `aic', `bt', `pas'
#
# aha: Adaptec 154x
# ahb: Adaptec 174x
# aic: Adaptec 152x and sound cards using the Adaptec AIC-6360 (slow!)
# bt: Most Buslogic controllers
# pas: ProAudioSpectrum cards using the NCR 5380 (slow!)
# uha: UltraStore 14F and 34F
# sea: Seagate ST01/02 8 bit controller (slow!)
#
# Note that the order is important in order for Buslogic cards to be
# probed correctly.
#
controller bt0 at isa? port "IO_BT0" bio irq ? vector btintr
controller ahb0 at isa? bio irq ? vector ahbintr
controller aha0 at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr
controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr
controller aic0 at isa? port 0x340 bio irq 11 vector aicintr
controller pas0 at isa? port 0x1f88
controller pas1 at isa? port 0x1f84
controller pas2 at isa? port 0x1f8c
controller pas3 at isa? port 0x1e88
controller sea0 at isa? bio irq 5 iomem 0xdc000 iosiz 0x2000 vector seaintr
#
# ST-506, ESDI, and IDE hard disks: `wdc' and `wd'
#
# NB: ``Enhanced IDE'' is NOT supported at this time.
#
controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr
disk wd0 at wdc0 drive 0
disk wd1 at wdc0 drive 1
controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr
disk wd2 at wdc1 drive 0
disk wd3 at wdc1 drive 1
#
# Standard floppy disk controllers and floppy tapes: `fdc', `fd', and `ft'
#
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk fd0 at fdc0 drive 0
disk fd1 at fdc0 drive 1
tape ft0 at fdc0 drive 2
#
# Other standard PC hardware: `lpt', `mse', `psm', `sio'
#
# lpt: printer port
# mse: Logitech and ATI InPort bus mouse ports
# psm: PS/2 mouse port (needs ALLOW_CONFLICT_IOADDR, above)
# sio: serial ports (see sio(4))
device lpt0 at isa? port "IO_LPT3" tty irq 7 vector lptintr
device mse0 at isa? port 0x23c tty irq 5 vector mseintr
device psm0 at isa? port "IO_KBD" tty irq 12 vector psmintr
device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr
# Options for sio:
options DSI_SOFT_MODEM #code for DSI Softmodems
#
# Network interfaces: `ed', `el', `ep', `ie', `is', `le', `lnc'
#
# ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
# el: 3Com 3C501 (slow!)
# ep: 3Com 3C509 (buggy)
# ie: AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210
# is: Isolan AT 4141-0; Isolink 4110; Novell NE2100
# le: Digital Equipment EtherWorks 2 and EtherWorks 3 (DEPCA, DE100,
# DE101, DE200, DE201, DE202, DE203, DE204, DE205, DE422)
# lnc: unknown LANCE-based
#
device ed0 at isa? port 0x280 net irq 5 iomem 0xd8000 vector edintr
device ie0 at isa? port 0x360 net irq 7 iomem 0xd0000 vector ieintr
device is0 at isa? port 0x280 net irq 10 drq 7 vector isintr
device ep0 at isa? port 0x300 net irq 10 vector epintr
device el0 at isa? port 0x300 net irq 9 vector elintr
device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
#device lnc0 at isa? XXX FILL ME IN
#
# Audio drivers: `snd', `pca'
#
# snd: Voxware sound drivers for various cards (see file `sound.doc')
# pca: PCM audio through your PC speaker
#
# Someday, Voxware configuration will be done properly.
#
device snd5 at isa? port 0x330 irq 6 vector mpuintr
device snd4 at isa? port 0x220 irq 15 drq 6 vector gusintr
device snd3 at isa? port 0x388 irq 10 drq 6 vector pasintr
device snd2 at isa? port 0x220 irq 7 drq 1 vector sbintr
device snd6 at isa? port 0x220 irq 7 drq 5 vector sbintr
device snd7 at isa? port 0x300
device snd1 at isa? port 0x388
device pca0 at isa? tty
#
# Miscellaneous hardware: `mcd', `wt', `ctx', `apm'
#
# mcd: Mitsumi CD-ROM
# wt: Wangtek and Archive QIC-02/QIC-36 tape drives
# ctx: Cortex-I frame grabber
# apm: Laptop Advanced Power Management (experimental)
#
device mcd0 at isa? port 0x300 bio irq 10 vector mcdintr
device wt0 at isa? port 0x300 bio irq 5 drq 1 vector wtintr
device ctx0 at isa? port 0x230 iomem 0xd0000
# NB: both lines are required
device apm0 at isa?
options APM
#
# PCI devices:
#
# The main PCI bus device is `pci'. It provides auto-detection and
# configuration support for all devices on the PCI bus, using either
# configuration mode defined in the PCI specification.
#
# The `ncr' device provides support for the NCR 53C810 and 53C825
# self-contained SCSI host adapters.
#
# The `de' device provides support for the Digital Equipment DC21040
# self-contained Ethernet adapter.
#
controller pci0
device ncr0
device de0