Commit Graph

81 Commits

Author SHA1 Message Date
glebius
9c643e1ad6 Some perfectionizm against last revision.
Submitted by:	ru
2006-08-10 11:07:11 +00:00
glebius
95f39eebb5 Fix ng_pppoe(4) after turning off "autosrc feature" on ng_ether(4).
- Store the Ethernet header in node softc.
- Initialize header with dst addr and ethertype in node
  constructor method.
- In node connect method send NGM_ETHER_GET_ENADDR message
  downwards.
- If received reply from ng_ether(4) store the src addr
  in softc.
- Add NGM_PPPOE_SETENDADDR message that allows user to
  override the address with whatever he/she wants.
2006-08-09 09:56:58 +00:00
glebius
7c2686ff86 - Use log(9) instead of printf(9).
- Print node ID, where possible.
- Prepend log messages with function name, or at least with "ng_pppoe".

Reviewed by:	julian
Tested by:	Joao Barros <joao.barros gmail.com>
2006-08-07 08:05:10 +00:00
glebius
ac52c99fe4 o Introduce D-Link compat mode, that is default to off and can be set
by NGM_PPPOE_SETMODE message. When D-Link compat mode is on, we will
  broadcast PADI with empty Service-Name to all listening hooks.
o Rewrite the compatibility options. Before we had two modes - standard
  and non-standard (aka 3Com). Now we have standard mode and two compat
  flags, that can be combined.
o Be consistent and do s/STUPID/3COM/g. I don't say that 3Com mode isn't
  stupid, just want to make code easier to read.
2006-01-27 10:56:22 +00:00
glebius
929b129a0a From the RFC2516 it is not clear, what is the correct behavior for a
PPPoE AC, servicing a specific Service-Name, when client sends a PADI
with an empty Service-Name. Should it reply with all available service
names or should it be silent? Our implementation had chosen the latter,
while some other had chosen the former (they say Linux and Cisco). Now
some PPPoE clients appear, that rely on the assumption that AC will
send all names in a PADO reply to a PADI with wildcard Service-Name.
These clients can't connect to FreeBSD AC.

I have requested comments from authors of RFC2516 via email, but
received no reply.

This change makes FreeBSD AC compatible with D-Link DI-614+ and
D-Link DI-624+ SOHO routers, and probably others.

Big thanks to D-Link's Russian office, namely Victor Platov, for
assistance and support in investigation and testing of this change.

Details:
  o Split pppoe_match_svc() into three different functions serving
    different purposes:
    - pppoe_match_svc() - match non-empty Service-Name tag from PADI
      against all available hooks in listening state.
    - pppoe_find_svc() - check that given Service-Name is not yet
      registered.
    - pppoe_broadcast_padi() - send a copy of PADI packet with empty
      Service-Name tag to all listening hooks.
  o For NGM_PPPOE_LISTEN message use pppoe_find_svc().
  o In ng_pppoe_rcvdata() in a PADI case use pppoe_match_svc() for
    a non-empty Service-Name tag, and pppoe_broadcast_padi() in
    either case.

A side effect from the above changes is that now pppoed(8) and mpd
will reply to a empty Service-Name PADI sending a PADO with two
Service-Name tags - an empty one and correct one. This is not fatal,
and will be corrected in pppoed(8) and mpd later. No need to update
node interface version.

Supported by:	D-Link
2006-01-26 13:06:49 +00:00
glebius
33fe9de0ae - Remove debugging printfs.
- Add some ktr(4) debugging.
- Whitespaces at eols.
- Tidy up comments.
- u_intXX -> uintXX
2006-01-21 08:13:19 +00:00
glebius
9ebf7b89f9 Dej'a vu of revision 1.35
PR:		kern/86258
Submitted by:	Hiroshi Oota <ghelp excite.co.jp>
2005-09-19 11:49:54 +00:00
glebius
af3bb40686 Remove obsoleted sysctl interface for switching between standard and 3Com
PPPoE modes. The interface was declared obsoleted before 5.3-RELEASE.

When running as access concentrator ng_pppoe(4) supports both modes
simultanously. When running as client mode can be swicthed in ppp(8)
configuration.

Approved by:	re (scottl)
2005-07-05 17:51:02 +00:00
glebius
0e5171dc2a Remove ng_connect_t where it is unused. Probably it remained from ng_source.c. 2005-03-14 20:49:48 +00:00
ru
9ad2a7ae39 Drop mythical module dependency on ng_ether. 2005-02-13 00:50:18 +00:00
imp
a50ffc2912 /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
glebius
99506151c1 - Use ng_callout() instead of timeout()
- remove spl(9) calls

Tested by:	Ilya Pizik
Approved by:	julian (mentor)
2004-12-08 13:27:54 +00:00
glebius
f915b81562 Since last change moved ';' from macro to code, we need to embrace
macros with 'do {} while (0)' to avoid error in case macro is
not defined.

Prodded by:	julian, archie
Pointy hat to:	glebius
2004-10-31 17:32:51 +00:00
glebius
30d3609f0a Rename debug macro to DBG and indent it properly.
Requested by:	maxim
Approved by:	julian (mentor)
2004-10-28 18:23:44 +00:00
glebius
c336444cf2 Another stupid error from my side. PPPOE_NONSTANDARD was first defined
in enum {}, and then redefined with #define.
No warnings from compiler, though.

Submitted by:	bz
Pointy hat to:	glebius
2004-08-01 20:39:33 +00:00
glebius
1a3245e3ca When node is server serve both standard RFC2516 and non-standard 3Com
clients simultaneously. When node is client its mode is configured
with a control message.

sysctl net.graph.nonstandard_pppoe is deprecated but kept for
backward compatibility for some time.

Approved by:	julian
2004-07-27 19:47:13 +00:00
rwatson
90f985cceb Add a note indicating that the eh_prototype field used to construct
ethernet headers is unsynchronized.
2004-07-14 20:31:37 +00:00
julian
5a269c8a7e Having moved metadata usage to mbuf tags, remove code that supports
the old way of doing it.

Submitted by:	Gleb Smirnoff <glebius@cell.sick.ru>
2004-06-26 22:24:16 +00:00
julian
c85e63d425 Switch to using C99 sparse initialisers for the type methods array.
Should make no binary difference.

Submitted by:	Gleb Smirnoff <glebius@cell.sick.ru>
Reviewed by:	Harti Brandt <harti@freebsd.org>
MFC after:	1 week
2004-05-29 00:51:19 +00:00
harti
14cb10664f Get rid of the deprecated *LEN constants in favour of the new
*SIZ constants that include the trailing \0 byte.
2004-01-26 14:05:31 +00:00
yar
127f4e3f65 The default value of net.graph.nonstandard_pppoe is changed to -1,
which means "always stay in the standard mode of PPPoE operation
regardless of any junk floating around."

As the referenced PR stated clearly, the old default setting of 0
was extremely dangerous because it opened a possibility for a
spurious frame not only to put down a single PPPoE node running
FreeBSD, but to plague *every* FreeBSD node in a PPPoE network in
such a way that those nodes would keep poisoning each other until
rebooted simultaneously.

PR:		kern/47920
Reviewed by:	Gleb Smirnoff <glebius <at> cell.sick.ru>
MFC after:	1 week
2003-12-19 16:03:28 +00:00
ru
2adf24aa2c Fixed compilation on 64-bit platforms. 2003-12-19 09:34:37 +00:00
yar
431cb9e4dc There are two modes of ng_pppoe operation, standard and
nonstandard.  They differ in the values of certain fields in
the PPPoE frame.  Previously, ng_pppoe would start in standard
mode, yet switch to nonstandard one upon reception of a single
nonstandard frame.  After having done so, ng_pppoe would be unable
to interact with standard PPPoE peers.  Thus, a DoS condition
existed that could be triggered by a buggy peer or malicious party.

Since few people have expressed their displeasure WRT this problem,
the default operation of ng_pppoe is left untouched for now.  However,
a new value for the sysctl net.graph.nonstandard_pppoe is introduced,
-1, which will force ng_pppoe stay in standard mode regardless of any
bogus frames floating around.

PR:		kern/47920
Submitted by:	Gleb Smirnoff <glebius <at> cell.sick.ru>
MFC after:	1 week
2003-12-18 16:38:35 +00:00
imp
cf874b345d Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
alfred
bf8e8a6e8f Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
jhb
4d0d9edb13 Use %z to print a size_t value. 2002-11-08 14:50:44 +00:00
alfred
ac315391ce use __packed. 2002-09-23 18:54:32 +00:00
archie
d8ca8557f2 Don't use "NULL" when "0" is really meant. 2002-08-22 00:30:03 +00:00
brian
c8d1b9c9f6 NUL terminate the ACNAME passed to userland. 2002-06-22 21:00:53 +00:00
archie
d14167a565 Const'ify variables to make it clear we're not writing to the mbuf data.
Reviewed by:	julian, brian
MFC after:	1 week
2002-06-05 23:35:31 +00:00
archie
b10887dc2b Fix GCC warnings caused by initializing a zero length array. In the process,
simply things a bit by getting rid of 'struct ng_parse_struct_info' which
was useless because it only contained one field.

MFC after:	2 weeks
2002-05-31 23:48:03 +00:00
brian
fa0fd5ad19 Add a NGM_PPPOE_SESSIONID message to the ng_pppoe node.
This message is sent to the control socket when the SessionID
is established.

Approved by:	archie (after a very cursory glance)
2002-05-14 12:32:41 +00:00
brian
c53e73d628 Send a NGM_PPPOE_ACNAME message to userland when a node is connected.
Submitted by:		Andre Albsmeier <andre@albsmeier.net>
Shuffled about by:	brian
Approved by:		julian
2002-02-20 15:51:11 +00:00
obrien
7fd9a6a23a Update to C99, s/__FUNCTION__/__func__/,
also don't use ANSI string concatenation.
2001-12-10 08:09:49 +00:00
julian
8208e8ca4f MFS: change name of sysctl to something more diplomatic. 2001-09-04 06:29:35 +00:00
brian
55328fd4bf Pack struct uniqtag declarations to stop our data field from being pushed
4 bytes to the right on the alpha.

Tested by:	Thomas Pornin <Thomas.Pornin@ens.fr>
MFC after:	1 week
2001-08-02 09:28:31 +00:00
brian
aa2caf2f5e If an attempt is made to LISTEN for a service tag that's already being
LISTENed for, return EEXISTS.

Only match the magic "*" service tag if no other LISTEN service tags
match.

Require an explicit LISTEN for an empty service tag in order to match
empty service requests.

Approved by:	julian
MFC after:	3 days
2001-07-25 03:34:07 +00:00
julian
575ee59b1c Shuffle sysctls a bit (thankyou whoever made them dynamic for modules)
and add a sysctl to pppoe to activate non standard ethertypes
so that idiot ISPs (apparently in France) who use
equipment from idiot suppliers (rumour says 3com)
who use nonstandard ethertypes can still connect.

 "yep, sure we do pppoe, we use a different identifier to that dictated in
 the standard, but sure it's pppoe!"

sysctl -w net.graph.stupid_isp=1 enables the changeover.
2001-02-23 16:34:22 +00:00
julian
829347d510 Implement direct support for semipersistant nodes.
(e.g. ethernet nodes are persistent until you rip out the hardware)
Use this support in the ethernet and sample nodes.
Add some more abstraction on the 'item's so that  node and
hook reference counting can be checked easier.
Slight man page correction.
Make pppoe type dependent on ethernet type.
Clean up node shutdown a little.
Move a mutex from MTX_SPIN to MTX_DEF (oops)
Fix small ref-counting bug.
remove warning on one2many type.
2001-01-30 20:51:52 +00:00
julian
420cd96845 Add an exported function ng_rmhook_self() that removes a hook
from a node, but does it via the locking queue, thus ensuring that the
node is locked when it's hook is removed.

Add 'deadnode' and 'deadhook' structures for when a node or hook is
invalidated but not yet freed. (not yet freed)
2001-01-11 19:27:54 +00:00
julian
077abe8f38 Fix uninitialised pointer.
Found by: Brian Sommers
2001-01-11 15:42:22 +00:00
julian
0012f9ab76 Only free items that are not already free or passed to other nodes.
Clever work by: Brian Sommers (Brian@freeBSD.org)
2001-01-10 23:49:03 +00:00
julian
bb6dbcf3b2 Fix some memory leaks
Add memory leak detection assitance.
2001-01-10 07:13:58 +00:00
julian
ff86256bf7 Part 2 of the netgraph rewrite.
This is mostly cosmetic changes, (though I caught a bug or two while
makeing them)
Reviewed by:	archie@freebsd.org
2001-01-08 05:34:06 +00:00
julian
f0c46a9d00 Rewrite of netgraph to start getting ready for SMP.
This version is functional and is aproaching solid..
notice I said APROACHING. There are many node types I cannot test
I have tested: echo hole ppp socket vjc iface tee bpf async tty
The rest compile and "Look" right.  More changes to follow.
DEBUGGING is enabled in this code to help if people have problems.
2001-01-06 00:46:47 +00:00
julian
0c949560a1 Divorce the kernel binary ABI version number from the message
format version number. (userland programs should not need to be
recompiled when the netgraph kernel internal ABI is changed.

Also fix modules that don;t handle the fact that a caller may not supply
a return message pointer. (benign at the moment because the calling code
checks, but that will change)
2000-12-18 20:03:32 +00:00
julian
2615d1c940 Impossible to see typo.. |= instead of != 2000-12-18 13:41:46 +00:00
julian
2d1192e612 Reviewed by: Archie@freebsd.org
This clears out my outstanding netgraph changes.
There is a netgraph change of design in the offing and this is to some
extent a superset of soem of the new functionality and some of the old
functionality that may be removed.

This code works as before, but allows some new features that I want to
work with and evaluate. It is the basis for a version of netgraph
with integral locking for SMP use.

This is running on my test machine with no new problems :-)
2000-12-12 18:52:14 +00:00
dwmalone
918549eb31 Add the use of M_ZERO to netgraph.
Submitted by:	josh@zipperup.org
Submitted by:	Robert Drehmel <robd@gmx.net>
Submitted by:	archie
Approved by:	archie
2000-11-18 15:17:43 +00:00
brian
5d83d171df Go back to using data_len in struct ngpppoe_init_data after discussions
with Julian and Archie.

Implement a new ``sizedstring'' parse type for dealing with field pairs
consisting of a uint16_t followed by a data field of that size, and use
this to deal with the data_len and data fields.

Written by:		Archie with some input by me
Agreed in principle by:	julian
2000-11-16 23:14:53 +00:00