Remove if_ppp(4) and if_sl(4).

Not only did these two drivers depend on IFF_NEEDSGIANT, they were
broken 7 months ago during the MPSAFE TTY import. if_ppp(4) has been
replaced by ppp(8). There is no replacement for if_sl(4).

If we see regressions in for example the ports tree, we should just use
__FreeBSD_version 800045 to check whether if_ppp(4) and if_sl(4) are
present. Version 800045 is used to denote the import of MPSAFE TTY.

Discussed with: rwatson, but also rwatson's IFF_NEEDSGIANT emails on the
                lists.

1 files changed, 0 insertions, 271 deletions

diff --git a/sbin/slattach/slattach.8 b/sbin/slattach/slattach.8
deleted file mode 100644
index a359dd2..0000000
--- a/sbin/slattach/slattach.8
+++ /dev/null
@@ -1,271 +0,0 @@
-.\" Copyright (c) 1986, 1991 The Regents of the University of California.
-.\" All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"     @(#)slattach.8	6.4 (Berkeley) 3/16/91
-.\"
-.\" $FreeBSD$
-.\"
-.Dd April 4, 1993
-.Dt SLATTACH 8
-.Os
-.Sh NAME
-.Nm slattach
-.Nd attach serial lines as network interfaces
-.Sh SYNOPSIS
-.Nm
-.Op Fl acfhLlnz
-.Op Fl e Ar exit-command
-.Op Fl K Ar keepalive
-.Op Fl O Ar outfill
-.Op Fl r Ar redial-command
-.Op Fl S Ar unit
-.Op Fl s Ar baudrate
-.Op Fl u Ar unit-command
-.Ar ttyname
-.Sh DESCRIPTION
-The
-.Nm
-utility is used to assign a tty line to a network interface,
-and to define the network source and destination addresses.
-.Pp
-The following options are available:
-.Bl -tag -width indent
-.It Fl a
-Autoenable the VJ header compression option, if the other end of the link
-is capable of VJ header compression then it will be used otherwise normal
-headers will be used.
-.It Fl c
-Enable the VJ header compression option.
-Note that both ends of the link
-must be able to use VJ header compression for this to work.
-.It Fl e Ar exit-command
-Specify a command to be invoked within a shell
-.Ql sh \-c Ar exit-command
-before
-.Nm
-exits.
-.It Fl f
-Disable the invocation of daemon() to run
-.Nm
-in the background.
-.It Fl h
-Turn on cts/rts style flow control on the slip port, by default no flow
-control is done.
-.It Fl l
-Disable modem control (CLOCAL) and ignore carrier detect on the slip
-port.
-By default the
-.Ar redial-command
-is invoked upon carrier drop and
-.Nm
-aborts if no
-.Ar redial-command
-is specified.
-.It Fl n
-Throw away ICMP packets.
-The slip interface will ignore ICMP packets
-to prevent slow lines being saturated by ICMP responses.
-.It Fl r Ar redial-command
-Specify a command to be invoked within a shell
-.Ql sh \-c Ar redial-command
-whenever carrier is lost on the modem line.
-Empty
-.Ar redial-command
-(i.e.\&
-.Fl r Qq "" )
-cause connection reestablishing on leased line
-without any external command invoked.
-.It Fl s Ar baudrate
-Specify the speed of the connection.
-If not specified, the
-default of 9600 is used.
-.It Fl u Ar unit-command
-When the line is switched to slip discipline, run
-.Dq Nm "sh -c" Ar unit-command old new
-where
-.Ar old
-and
-.Ar new
-are the slip unit numbers when the line was
-last opened and the unit number of the current slip connection
-respectively.
-The unit number can change after redialing if you are
-using more than one slip line.
-When
-.Nm
-is connected for the first time,
-.Dq Nm "sh -c" Ar unit-command \-1 new
-is run.
-When
-.Nm
-is disconnected,
-.Dq Nm "sh -c" Ar unit-command old \-1
-is run.
-The
-.Nm
-utility will abort if the unit number
-changes and
-.Dq Fl u Ar \%unit-command
-was not specified.
-.It Fl z
-Force redial
-.Ar redial-command
-upon startup irrespective of carrier.
-.It Fl L
-Use uucp-style device locking.
-You need it unless you start
-.Nm
-from external program which already does uucp locking.
-Default case is no uucp locking to satisfy such programs.
-.It Fl K Ar keepalive
-Set SLIP "keep alive" timeout in seconds.
-If FRAME_END is not received in
-this amount of time, re-connect occurs.
-The default value is no timeout.
-.It Fl O Ar outfill
-Set SLIP "out fill" timeout in seconds.
-It forces at least one FRAME_END
-to be sent during this time period, which is necessary for the "keep alive"
-timeout on the remote side.
-The default value is no timeout.
-.It Fl S Ar unit
-Set the SLIP unit number directly.
-Use with caution, because no check is made
-for two interfaces with same number.
-By default sliplogin dynamically assigns the unit number.
-.It Ar ttyname
-Specify the name of the tty device.
-.Ar Ttyname
-should be a string of the form
-.Ql ttyXX
-or
-.Ql /dev/ttyXX .
-.El
-.Pp
-Only the super-user may attach a network interface.
-.Pp
-To detach the interface, use
-.Dq Li ifconfig interface-name down
-after killing off the
-.Nm
-process using
-.Ql kill -INT .
-.Ar Interface-name
-is the name that is shown by
-.Xr netstat 1 .
-.Pp
-To setup
-.Nm
-to redial the phone when carrier is lost, use the
-.Fl r Ar redial-command
-option to specify a script or executable that will reconnect the
-serial line to the slip server.
-For example, the script could redial
-the server and log in, etc.
-.Pp
-To reconfigure the network interface in case the slip unit number
-changes, use the
-.Fl u Ar unit-command
-option to specify a script or executable that will be invoked as
-.Ql sh \-c Ar unit-command old new
-where
-.Ar old
-and
-.Ar new
-are the slip unit numbers before and after
-reconnecting the line.
-The unit number can change if you have more
-than one line disconnect at the same time.
-The first to succeed in
-reconnecting will get the lowest unit number.
-.Pp
-To kill
-.Nm
-use
-.Ql kill -INT
-(SIGINT) which causes it to close the tty and exit.
-.Pp
-To force a redial, use
-.Ql kill -HUP
-(SIGHUP) which causes
-.Nm
-to think carrier was lost and thus invoke
-.Ql sh \-c Ar redial-command
-to reconnect to the server.
-.Pp
-If you use a hard-wired connection rather than a modem, invoke
-.Nm
-with the
-.Fl l
-option in order to ignore carrier on the slip line.
-.Sh FILES
-.Bl -tag -width /usr/share/examples/slattach/* -compact
-.It Pa /var/run/slattach.<tty>.pid
-with
-.Ar tty
-replaced by the terminal path name component of
-.Ar ttyname .
-This file contains the numerical process ID of the
-.Nm
-process and can be examined by scripts in order to send a signal to
-.Nm
-.It Pa /usr/share/examples/slattach/*
-.El
-.Sh EXAMPLES
-.Bd -literal -offset indent -compact
-slattach ttyd8
-slattach \-s 4800 /dev/ttyd1
-slattach \-c \-s 38400 /dev/cuad1
-slattach \-r 'kermit -y dial.script >kermit.log 2>&1'
-.Ed
-.Sh DIAGNOSTICS
-Look for error messages in
-.Pa /var/log/messages
-.No ( Nm
-is a daemon).
-Messages indicating the specified interface does not exit, the
-requested address is unknown, the user is not privileged and tried to
-alter an interface's configuration are logged there.
-The
-.Nm
-utility
-also logs failure to set the controlling terminal or failure to install
-signal handlers.
-Upon connection and redial the ttyname and baud rate
-are logged and on shutdown the ttyname is logged.
-.Sh SEE ALSO
-.Xr netstat 1 ,
-.Xr startslip 1 ,
-.Xr netintro 4 ,
-.Xr ifconfig 8 ,
-.Xr rc 8 ,
-.Xr sliplogin 8
-.Sh HISTORY
-The
-.Nm
-utility appeared in
-.Bx 4.3 .