4345758876
Avoid using parenthesis enclosure macros (.Pq and .Po/.Pc) with plain text. Not only this slows down the mdoc(7) processing significantly, but it also has an undesired (in this case) effect of disabling hyphenation within the entire enclosed block.
208 lines
4.8 KiB
Groff
208 lines
4.8 KiB
Groff
.\"-
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.\" Copyright (c) 1999-2001 Brian Somers <brian@Awfulhak.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 8, 1999
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.Dt PPPOED 8
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.Os
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.Sh NAME
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.Nm pppoed
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.Nd handle incoming PPP over Ethernet connections
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.Sh SYNOPSIS
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.Nm
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.Op Fl Fd\&
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.Op Fl P Ar pidfile
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.Op Fl a Ar name
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.Op Fl e Ar exec | Fl l Ar label
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.Op Fl n Ar ngdebug
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.Op Fl p Ar provider
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.Ar interface
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.Sh DESCRIPTION
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The
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.Nm
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program listens to the given
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.Ar interface
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for PPP over Ethernet (PPPoE) service request packets, and actions them
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by negotiating a session then envoking a
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.Em PPP
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program.
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The negotiation is implemented by the
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.Dq pppoe
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netgraph node.
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See
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.Xr ng_pppoe 4
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for details.
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.Pp
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.Nm
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will only offer services to clients requesting services from the given
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.Ar provider ,
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which is taken as an empty name if not provided.
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If a provider name of
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.Dq \&*
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is given, any PPPoE requests will be offered service.
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.Pp
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The supplied
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.Ar name
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will be given as the access concentrator name when establishing the connection.
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If no
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.Ar name
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is given, the current base hostname is used.
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.Pp
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After receiving a request (PADI) from the PPPoE netgraph node,
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.Nm
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.Xr fork 2 Ns No s
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a child process and returns to service further requests.
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The child process offers service
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(using
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.Ar name )
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and waits for a
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.Dv SUCCESS
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indication from the PPPoE node.
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On receipt of the SUCCESS indication,
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.Nm
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will execute
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.Pp
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.D1 Ic exec /usr/sbin/ppp -direct Ar label
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.Pp
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as a shell sub-process.
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If
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.Ar label
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has not been specified, it defaults to
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.Ar provider .
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It is possible to specify another command using the
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.Ar exec
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argument.
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This is mandatory if
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.Ar provider
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and
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.Ar label
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are not given.
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The child process will have standard input and standard output
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attached to the same
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.Xr netgraph 4
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data socket
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(see
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.Xr ng_socket 4 )
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when started.
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.Pp
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Upon invocation,
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.Nm
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will attach a
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.Dq pppoe
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netgraph node to the relevant
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.Dq ether
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node using
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.Dq Ar interface Ns No \&:
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as the node name, and then connect that
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.Dq pppoe
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node to a local
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.Dq socket
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node.
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If the
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.Fl F
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flag has not been given,
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.Nm
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will then go into the background and disassociate itself from the controlling
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terminal.
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When the
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.Fl F
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flag is given,
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.Nm
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stays in the foreground.
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.Pp
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If the
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.Fl d
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flag is given, additional diagnostics are provided (see the
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.Sx DIAGNOSTICS
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section below).
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If the
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.Fl n
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flag is given,
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.Fn NgSetDebug
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is called with an argument of
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.Ar ngdebug .
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.Pp
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If
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.Ar pidfile
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is given,
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.Nm
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will write its process ID to this file on startup.
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.Sh DIAGNOSTICS
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After creating the necessary
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.Xr netgraph 4
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nodes as described above,
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.Nm
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uses
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.Xr syslogd 8
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to report all incoming connections.
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If the
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.Fl d
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flag is given,
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.Nm
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will report on the child processes creation of a new netgraph socket, it's
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service offer and the invocation of the
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.Em PPP
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program.
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If the
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.Fl n
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option is given, netgraph diagnostic messages are also redirected to
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.Xr syslogd 8 .
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.Pp
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It is sometimes useful to add the following to
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.Pa /etc/syslog.conf :
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.Pp
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.Dl !pppoed
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.Dl "*.* /var/log/pppoed.log
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.Pp
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and the following to
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.Pa /etc/newsyslog.conf :
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.Pp
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.Dl "/var/log/pppoed.log 640 3 100 * Z
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.Sh SEE ALSO
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.Xr NgSetDebug 3 ,
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.Xr netgraph 4 ,
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.Xr ng_ether 4 ,
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.Xr ng_pppoe 4 ,
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.Xr ng_socket 4 ,
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.Xr syslog.conf 5 ,
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.Xr ppp 8 ,
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.Xr syslogd 8
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.Sh BUGS
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If another netgraph node is using the given interface,
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.Nm
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will fail to start.
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This is because
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.Xr netgraph 4
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does not currently allow node chaining.
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This may change in the future.
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.Sh HISTORY
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The
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.Nm
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program was written by
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.An Brian Somers Aq brian@Awfulhak.org
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and first appeared in
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.Fx 3.4 .
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