Commit Graph

103 Commits

Author SHA1 Message Date
pfg
7551d83c35 various: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:37:16 +00:00
eugen
174eaa6b4d ppp(8): style(9) fix after r325157
Approved by:	mav (mentor)
2017-10-30 15:19:28 +00:00
eugen
adc550e98c Fix ppp(8) to add RTF_HOST flag to created host route.
Reported by:	Mike Tancsa <mike@sentex.net>
Approved by:	avg (mentor)
MFC After:	1 week
2017-10-30 15:02:42 +00:00
glebius
8293a6c1cc Garbage collect long time obsoleted (or never used) stuff from routing API. 2014-03-15 06:49:32 +00:00
bz
ab7aea9843 Conditionally add the interface name and address if available
so that a ppp running in `receiver' (server) mode can properly
update routes, for example to update the MTU.

Submitted by:	loos.br gmail.com (Luiz Otavio O Souza)
PR:		bin/130159
PR:		kern/125079, kern/122068, bin/126892
MFC after:	3 days
2009-04-20 14:38:48 +00:00
bz
c47c606500 While we currently still seem to have a gateway address, for future
stability, check for gw to be set before adding the flag and the address
to the routing message.

r186308, backed out in r191305, already tried to do that, and in addition
ignore AF_LINK types of gateway addresses to work around a problem that
r167797 had introduced on the kernel side always setting RTF_GATEWAY if a
gateway address was passed into the kernel.
The proper solution for this is still under discussion so I am hesitant to
re-add the special AF_LINK treatment for now.

MFC after:	3 days
2009-04-20 11:51:35 +00:00
bz
1a4d93caae Back out r186308:
in case of AF_LINK, which the kernel still returns for an RTAX_GATEWAY
as an empty sockaddr_dl in the classic tun<n> case.
Copying the address into the message payload, but not the RTA_GATEWAY
flag results in rt_xaddrs() in the kernel tripping over that and parsing
the next attribute set with a flag, i.e. RTA_NETMASK, with the gateway
address, resulting in bogus route entry.

MFC after:	3 days
2009-04-20 11:22:51 +00:00
qingli
fba34872ec The ppp application relies on the if_tun interface to properly
install a p2p host route between the end points. The ppp module
upates this router based on user configuration later on. The
rt_Update() seems to always set the RTF_GATEWAY flag, which is
broken.
2008-12-19 01:37:20 +00:00
qingli
ec826ad5c7 This main goals of this project are:
1. separating L2 tables (ARP, NDP) from the L3 routing tables
2. removing as much locking dependencies among these layers as
   possible to allow for some parallelism in the search operations
3. simplify the logic in the routing code,

The most notable end result is the obsolescent of the route
cloning (RTF_CLONING) concept, which translated into code reduction
in both IPv4 ARP and IPv6 NDP related modules, and size reduction in
struct rtentry{}. The change in design obsoletes the semantics of
RTF_CLONING, RTF_WASCLONE and RTF_LLINFO routing flags. The userland
applications such as "arp" and "ndp" have been modified to reflect
those changes. The output from "netstat -r" shows only the routing
entries.

Quite a few developers have contributed to this project in the
past: Glebius Smirnoff, Luigi Rizzo, Alessandro Cerri, and
Andre Oppermann. And most recently:

- Kip Macy revised the locking code completely, thus completing
  the last piece of the puzzle, Kip has also been conducting
  active functional testing
- Sam Leffler has helped me improving/refactoring the code, and
  provided valuable reviews
- Julian Elischer setup the perforce tree for me and has helped
  me maintaining that branch before the svn conversion
2008-12-15 06:10:57 +00:00
brian
48fd8924bb Cast unsigned variables to int 2005-01-10 11:12:36 +00:00
brian
fb00aab954 Add a bunch of malloc() return checks
PR:		71592
Submitted by:	Dan Lukes <dan@obluda.cz> with further changes
2004-10-11 09:45:58 +00:00
brian
6f864d0a97 Make ppp WARNS=5 clean 2004-09-05 01:46:52 +00:00
ume
9285b79003 We need filling scopeid to install routes for link-local
scope addresses.
2003-03-25 16:49:08 +00:00
brian
f2e99a8ed2 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
c2da7c8697 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
b222d9573a Remove some extraneous whitespace 2002-03-31 01:51:15 +00:00
brian
4aad533fbf Don't use the RTF_GATEWAY flag and pass the RTA_GATEWAY address when updating
routes.
2002-03-30 12:50:49 +00:00
brian
ee9763124d Merge the NETGRAPH branch into HEAD. tty devices now use netgraph's line
discipline to do the async escaping, but no other benefits are available yet.

Change ``ifdef HAVE_DES'' to ``ifndef NODES'' for consistency.

Make the Makefile a little more sane WRT RELEASE_CRUNCH.
2002-03-30 12:30:09 +00:00
brian
c6d68beab8 socket()s first argument should be a protocol family rather than an
address family.
2002-01-16 14:03:52 +00:00
brian
414245183e socket's first argument is an address family, not a protocol family. 2002-01-16 13:15:47 +00:00
brian
6423ccba92 Don't provide an RTA_GATEWAY sockaddr when we write RTM_CHANGE messages
to the routing socket.

The local address on a point-to-point interface is not actually a
gateway address - despite it appearing in the second column of
netstat -r's output.  Providing a gateway to an RTM_CHANGE will
currently change the route's interface so that it's using the
specified gateway - not what we want.

Patiently explained to me by:	ru
2001-11-30 14:01:20 +00:00
brian
244dad812b Remove the hack that ensures that rt_Update() works on FreeBSD. Now
that the ncpaddr code doesn't create default routes with non-zero
masks, everything works as it should.
2001-11-23 19:20:45 +00:00
brian
d8f0ad876a When writing messages to the routing socket, round sockaddr sizes
up in the same way that we expect them to be when we read them.

This is a no-op on i386 and probably on alphas, as we currently
only support AF_INET and AF_INET6.
2001-11-23 17:19:36 +00:00
brian
e37212b653 Be paranoid about non-zero netmasks being associated with INET addresses
of 0.0.0.0.

The OpenBSD PF_ROUTE/NET_RT_DUMP sysctl is sending back routes with
RTAX_NETMASK set, but the corresponding sockaddr being 4 zero bytes
(with an address family of zero).  ppp was getting confused by this
and ending up interpreting it as a 0.0.0.0/32 routing table
destination and subsequently failing to do anything with the route.

Specifically, after this fix, ppp under OpenBSD can successfully
change and delete the default route again !
2001-11-23 17:19:27 +00:00
brian
5f83a6b610 Remove an unused variable (oops) 2001-11-23 15:47:04 +00:00
brian
274cbc8854 Don't adjust_linklocal() when pulling a sockaddr out of an ncpaddr or
ncprange structure.

Don't write() the netmask for IPv6 sockaddrs to the routing socket if
the prefixlen is 128.

It seems that messages written to the routing socket with the scopeid
set for link local addresses are not understood.  Instead, we have to
put the scopeid in the 5th and 6th bytes of the address (see
adjust_linklocal() in ncpaddr.c).  I think this may be a bug in the
KAME implementation - it should really understand both forms.
2001-11-23 12:39:20 +00:00
brian
d99614d082 Fix a diagnostic 2001-09-04 22:07:56 +00:00
brian
0630cc6224 When attempting to change the default route, don't write the gateway
and mask to the routing socket, otherwise the update fails.

Warning provided by: markm

The code here was broken for FreeBSD when IPv6 support was added, but
was fixed for OpenBSD.  OpenBSD expects the gateway and mask to be
supplied and fails the update otherwise.
2001-08-20 00:46:33 +00:00
brian
fb43a54a68 Build properly with -DNOINET6 2001-08-18 12:31:54 +00:00
brian
9311b9a0c6 Specify the gateway address when updating the MTU and send/recv pipe
sizes on a route.

IMHO this shouldn't be necessary (the destination & mask/prefixlen
should be enough), but without it, the default route update under
OpenBSD will fail.

Thanks to: Russell T Hunt <alaric@MIT.EDU>
2001-08-16 02:01:05 +00:00
brian
c0bbf51bca Don't forget to attache the sticky route change to the ncp structure.
PR:	29726
2001-08-15 12:47:51 +00:00
brian
de3feff3f8 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
14263ff751 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
52cb477a72 Convert IIJ copyrights to BSD copyrights.
Approved by: Toshiharu OHNO <tohno@sirius.ocn.ne.jp>
2001-06-13 21:52:19 +00:00
brian
6359851d32 When we change the interface MTU, run through the routing table and tweak
all route MTUs too.
2001-04-05 02:23:48 +00:00
brian
b6a0e38086 Don't delete sticky routes when unconfiguring the interface.
Deleting all routes that match the interface is sufficient.
2000-08-14 08:43:40 +00:00
brian
9466668148 Don't mis-interpret sockaddr_in6 structures as sockaddr_in structures
when purging routes.
2000-07-20 10:38:12 +00:00
brian
1bc8ab9f4f Add the ``resolv'' command for telling ppp how to deal with resolv.conf.
You can now ``resolv restore'' in ppp.linkdown !
Add DNS0 and DNS1 macros.
2000-03-14 01:47:27 +00:00
brian
e9ef0032ae Don't include netinet6/in6.h directly. 2000-03-14 01:47:09 +00:00
brian
1afd290619 Don't ``break'' when we come accross a non-RTM_IFINFO type
entry in the block returned by the NET_RT_IFLIST mib,
``continue''

Broken a few minutes ago by: me
2000-03-14 01:46:56 +00:00
brian
c905df5091 When ppp can't identify the relevant name, don't use "???", use
<nnn> or <0xxxx> instead.
2000-03-14 01:46:54 +00:00
brian
a69e155f87 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
ca63a8dc14 Support IP6 addresses in ``show route''
Also, don't try to output routing entries if either the
RTA_DST or RTA_GATEWAY sockaddrs aren't present.
2000-03-14 01:46:38 +00:00
brian
cdf842b2df 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
463e41d5f8 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
efabb9ccb1 $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
brian
adcdd2a153 Rebuild the list of interface numbers to names if we're trying
to evaluate an interface number that didn't previously exist.
1999-08-26 20:01:20 +00:00
brian
ab7d88ae2d 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
c970e06ccf 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
7056e6ac47 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