Commit Graph

42 Commits

Author SHA1 Message Date
Gleb Smirnoff
56d5e0967c Stop including if_var.h from userland.
Sponsored by:	Nginx, Inc.
2015-04-06 09:42:23 +00:00
Eitan Adler
7268c7daff Fix warning when compiling with gcc46:
error: variable 'addrs' set but not used

Approved by:	dim
Approved by:	cperciva (mentor, blanket for pre-mentorship already-approved commits)
MFC After:	3 days
2012-01-20 01:37:31 +00:00
Brian Somers
f2f5156f21 Add "iface name" and "iface description" commands.
PR:		151400
Submitted by:	Aragon Gouveia - aragon at phat dot za dot net with minor fixes
MFC after:	3 weeks
2011-02-07 11:18:18 +00:00
Bjoern A. Zeeb
1de22c3b3e In case the peer address was already configured on the interface
we were not properly handling proxy arp. Make sure we (try to) add
the proxy arp entry/entries in this case as well.

PR:		bin/131250
Submitted by:	loos.br gmail.com (Luiz Otavio O Souza)
MFC after:	3 days
2009-04-13 17:57:12 +00:00
Brian Somers
50be714be3 ifr_flagshigh is FreeBSD specific 2005-01-10 11:12:10 +00:00
Brian Somers
057f1760a8 Make ppp WARNS=5 clean 2004-09-05 01:46:52 +00:00
Hajimu UMEMOTO
977e6c08fe Set link-local address of tun interface with prefixlen = 64
instead of 128.  It makes RA happy.

Reported by:	rafa@dif.um.es,
		SHIRASAKI Yasuhiro <yasuhiro@nttv6.jp>
Reviewed by:	SHIRASAKI Yasuhiro <yasuhiro@nttv6.jp>
MFC after:	1 week
2003-04-04 11:09:08 +00:00
Maxim Sobolev
88202a1f33 Correctly handle ifr.ifr_flags/ifr.ifr_flagshigh like ifconfig(8) does.
MFC after:	1 day
2002-08-29 12:52:28 +00:00
Brian Somers
6eafd35305 Include the correct file (stdarg.h) and use va_list rather than _BSD_VA_LIST_
Suggested by: mike
2002-08-27 20:11:58 +00:00
Brian Somers
10be78d3ae Remove whitespace at the end of lines. 2002-06-15 08:03:30 +00:00
Brian Somers
de59e178aa o Clean up some #includes
o Bump version number to 3.0.4
o When talking to a RADIUS server, provide a NAS-Port-Type.

  When the NAS-Port-Type is Ethernet, provide a NAS-Port value equal
  to the SESSIONID from the environment in direct mode or the
  NGM_PPPOE_SESSIONID message in other modes.  If no SESSIONID is found,
  default to the interface index in client mode or zero in server mode.

  When the NAS-Port-Type is ISDN, set the NAS-Port to the minor number
  of the physical device (ie, the N in /dev/i4brbchN).

  This makes it easier for the RADIUS server to identify the client
  WRT accounting data etc.

Prompted by:	lsz8425 <lsz8425@mail.cd.hn.cn>
2002-05-14 12:55:39 +00:00
Brian Somers
63c6cac940 socket()s first argument should be a protocol family rather than an
address family.
2002-01-16 14:03:52 +00:00
Brian Somers
add3c04151 Pay attention to failures to SIOCAIFADDR and SIOCDIFFADDR. 2001-11-30 14:01:21 +00:00
Brian Somers
2ea80d6d37 Add some DEBUG logging to tell us when interface addresses are being
added and removed
2001-11-30 14:01:18 +00:00
Brian Somers
46df5aa7bc Add a ``log'' command for logging specific information.
Add an ``UPTIME'' variable to indicate the bundle uptime.

It's now possible to put something like this in ppp.linkdown
for a server setup:

  MYADDR:
    log Session closing: User USER, address HISADDR, up UPTIME

Fixed some memory leakage with commands that expand words.
Made some functions static.
Fixed a diagnostic bug (iface add .... SIOCDIFADDR)
2001-11-03 21:45:32 +00:00
Brian Somers
f0ea3513c9 Some cosmetic changes to sync with OpenBSD 2001-08-27 19:08:43 +00:00
Brian Somers
ebdcbc6744 o Enable IFF_MULTICAST when first opening the tun device (and keep the flag
when we ioctl(TUNSIFINFO) under OpenBSD)
o Don't bring the interface up immediately
o Don't complain about unrecognised interface flags in ``show iface''.
2001-08-21 11:07:58 +00:00
Brian Somers
84b0fe8197 Properly change old interface addresses so that their destination is
255.255.255.255 if our new destination address conflicts.
2001-08-20 11:06:21 +00:00
Brian Somers
856cf6873b Avoid a compiler warning
Not spotted by: FreeBSD's gcc version 2.95.3 20010315 (release)
Spotted by: OpenBSD's gcc version 2.95.3 20010125 (prerelease)
2001-08-19 22:23:22 +00:00
Brian Somers
a886247185 Don't show a prefixlen when a destination address is present
in ``show iface''.
2001-08-15 13:05:39 +00:00
Brian Somers
30949fd4b5 o Add ipv6 support, abstracting most NCP addresses into opaque
structures (well, they're treated as opaque).

  It's now possible to manage IPv6 interface addresses and routing
  table entries and to filter IPV6 traffic whether encapsulated or
  not.

  IPV6CP support is crude for now, and hasn't been tested against
  any other implementations.

  RADIUS and IPv6 are independent of eachother for now.

  ppp.linkup/ppp.linkdown aren't currently used by IPV6CP

o Understand all protocols(5) in filter rules rather than only a select
  few.

o Allow a mask specification for the ``delete'' command.  It's now
  possible to specifically delete one of two conflicting routes.

o When creating and deleting proxy arp entries, do it for all IPv4
  interface addresses rather than doing it just for the ``current''
  peer address.

o When iface-alias isn't in effect, don't blow away manually (via ``iface
  add'') added interface addresses.

o When listening on a tcp server (diagnostic) socket, bind so that a
  tcp46 socket is created -- allowing both IPv4 and IPv6 connections.

o When displaying ICMP traffic, don't display the icmp type twice.
  When display traffic, display at least some information about unrecognised
  traffic.

o Bump version

Inspired after filtering work by: Makoto MATSUSHITA <matusita@jp.FreeBSD.org>
2001-08-14 16:05:52 +00:00
Brian Somers
c8b9fb53a1 Handle hardware-imposed MTU/MRU limitations. PPPoE will no longer
allow MRU/MTU negotiations to exceed 1492.

Add an optional ``max'' specifier to ``set m[rt]u'', ie.

	set mtu max 1480

Bump the ppp version number.

Sponsored by:	Monzoon Networks AG and FreeBSD Services Limited
2001-06-18 14:59:36 +00:00
Brian Somers
0272404f73 Handle situations where we've already got a P2P interface address
of a/x -> b and then negotiate a/x -> c by simply expecting SIOCAIFADDR
to do the change.

This was broken by the last commit that optimised out the deletion and
re-addition of the same a/x -> b combination, and forgot to compare
the old/new destination addresses.

Conveniently enough, this problem didn't effect setups where the
default route goes via the ppp link, and most other setups don't
care what the the destination address is actually set to.  It broke
test environments where ppp connects to the local machine rather
badly though....
2001-05-02 16:35:24 +00:00
Brian Somers
152a439010 Be a bit more persistent when the NET_RT_IFLIST sysctl returns ENOMEM
rather than dropping out immediately.
2001-04-03 08:21:28 +00:00
Brian Somers
dc744e1949 Bring the PPPoE interface UP if required
Suggested by: archie
2001-03-28 09:45:27 +00:00
Brian Somers
16004197c4 If we're adding an interface address that is already one of the interface's
aliases with the same netmask and destination, don't remove it and then
re-add exactly the same thing.

This means that static (non-sticky) routes that use the interface address
(or destination address) as a destination will not suddenly evaporate when
IPCP comes up (not unless the negotiated IPs have changed anyway).
2001-03-25 01:34:27 +00:00
Brian Somers
723aebe85e Mention the MTU in ``show iface''. 2000-12-01 03:22:18 +00:00
Brian Somers
58a575135b Don't mis-match interface names in iface_Create()
Submitted by: Adrian Penisoara <ady@freebsd.ady.ro>
2000-06-19 21:43:48 +00:00
Brian Somers
6b4579784c The interface list that comes back from the PF_ROUTE/NET_RT_IFLIST mib
is aligned.  Teach this to ``show route''.

Clean up some of the sockaddr parsing routines.
2000-03-14 01:46:44 +00:00
Brian Somers
278657c32d Don't set ifaddr::in_addrs to 1 after an ``iface clear'' on an interface
with no addresses.
2000-01-07 03:47:12 +00:00
Brian Somers
c0593e34b7 Add the -unit command line switch for specifying the tun device.
Warn about -alias being depricated (but still allow it).
Don't moan twice about failing to open any tun device.
Fix a diagnostic and add the -quiet switch to the usage message.
1999-10-19 15:21:09 +00:00
Brian Somers
53dc037c22 Correct a few diagnostics 1999-10-16 13:28:04 +00:00
Brian Somers
b9391689ee Back out the bogus #ifdef __NetBSD__ #include <signal.h> lines.
The original report was due to a mis-installation of the NetBS
header files :-/

Submitted by:	 Kazuyoshi Kato <kazk@yyy.or.jp>
1999-09-21 19:37:00 +00:00
Brian Somers
7e795ebe38 NetBSD has moved ``extern int errno;'' to signal.h :-/
Submitted by:	Kazuyoshi Kato <kazk@yyy.or.jp>
1999-09-20 07:36:46 +00:00
Peter Wemm
97d92980a9 $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
Brian Somers
1d1fc0171e Remember if MYADDR or HISADDR is used in a filter add tweak all
filters any time either value changes.
1999-05-31 23:57:40 +00:00
Brian Somers
4e5196e9dc Move the code for tweaking interface flags into one function. 1999-05-27 08:42:17 +00:00
Brian Somers
5d9e610366 o Redesign the layering mechanism and make the aliasing code part of
the layering.

  We now ``stack'' layers as soon as we open the device (when we figure
  out what we're dealing with).  A static set of `dispatch' routines are
  also declared for dealing with incoming packets after they've been
  `pulled' up through the stacked layers.

  Physical devices are now assigned handlers based on the device type
  when they're opened.  For the moment there are three device types;
  ttys, execs and tcps.

o Increment version number to 2.2
o Make an entry in [uw]tmp for non-tty -direct invocations (after
  pap/chap authentication).
o Make throughput counters quad_t's
o Account for the absolute number of mbuf malloc()s and free()s in
  ``show mem''.
o ``show modem'' becomes ``show physical''.
1999-05-08 11:07:56 +00:00
Brian Somers
119386a38b #include <errno.h>, not <sys/errno.h> 1999-04-26 08:54:25 +00:00
Brian Somers
972a1bcf5d Initial RADIUS support (using libradius). See the man page for
details.  Compiling with -DNORADIUS (the default for `release')
removes support.

TODO: The functionality in libradius::rad_send_request() needs
      to be supplied as a set of routines so that ppp doesn't
      have to wait indefinitely for the radius server(s).  Instead,
      we need to get a descriptor back, select() on the descriptor,
      and ask libradius to service it when necessary.
      For now, ppp blocks SIGALRM while in rad_send_request(), so
      it misses PAP/CHAP retries & timeouts if they occur.

      Only PAP is functional.  When CHAP is attempted, libradius
      complains that no User-Password has been specified... rfc2138
      says that it *mustn't* be used for CHAP :-(

Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00
Brian Somers
17871c5f6c Fix the interface alias code. Previously, I was expecting something
like

tun0: flags=blah
	10.0.0.1 -> 10.0.0.100
	10.0.0.2 -> 10.0.0.100
	10.0.0.3 -> 10.0.0.100

to DTRT, despite the SIOCAIFADDR for each new alias returning
-1 & EEXIST while adding the alias anyway.  In real life, once
we have the second alias with the same destination, nothing will
route any more !  Also, because I was ignoring EEXIST, the
dynamic IP assignment code was assigning duplicate addresses
('cos it was being lied to by iface_inAdd()).

Now we have

tun0: flags=blah
	10.0.0.1 -> 255.255.255.255
	10.0.0.2 -> 10.0.0.100
	10.0.0.3 -> 255.255.255.255

This works - stuff bound to 10.1 & 10.3 will be considered alive
by the kernel, and when they route back to the tun device, the
packets get aliased to 10.2 and go out to 10.100 (as with the
original plan).

We still see the EEXIST in SIOCAIFADDR, but ignore it when our
destination is 255.255.255.255, assuming that the alias *was*
actually added.

Additionally, ``iface add'' may now optionally be given only
the interface address.  The mask & destination default to
255.255.255.255.
1998-10-26 19:07:36 +00:00
Brian Somers
8fa6ebe47d Solve the ``first connection'' problem that occurs on
demand-dial links with dynamic IP numbers where the program
that causes the dial bind()s to an interface address that is
subsequently changed after ppp negotiation.

The problem is defeated by adding negotiated addresses to the
tun interface as additional alias addresses and providing a set
of ``iface'' commands for managing the interface.  Libalias is
also required (and what a name clash!) - it happily IP-aliases
the address so that the source is that of the primary (negotiated)
interface and un-IP-aliases it on the way back.

An ``enable iface-alias'' is done implicitly by the -alias command
line switch.  If -alias isn't given, iface-aliasing is disabled by
default and can't be enabled 'till an ``alias enable yes'' is done.
``alias enable no'' silently disables iface-alias.

So, for dynamic-IP-type-connections, running ``ppp -alias -auto blah''
will work for the first connection, although existing bindings will
not survive a disconnect/connect as the TCP peer will be trying to
send to the old IP address - the packets won't route.

It's now a lot easier to add IPXCP to ppp with minor updates to
the new iface.[ch] (if anyone ever gets 'round to it).

It's also now possible to manually add interface aliases with
something like ``iface add 1.2.3.4/24 5.6.7.8''.  This allows
multi-homed ppp links :-)
1998-10-22 02:32:50 +00:00