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320 Commits

Author SHA1 Message Date
Archie Cobbs
a8f6d55e95 Increase the maximum allowable datagram length. 2000-08-10 22:51:57 +00:00
Archie Cobbs
cac2a7de76 "u_int32_t" should have been "int32_t". 2000-08-10 22:51:26 +00:00
Archie Cobbs
7133ac27ef Use a bigger buffer for NGM_BINARY2ASCII conversion, to handle really 
long ASCII control messages.
 2000-08-10 22:50:38 +00:00
Archie Cobbs
656485a2c6 - Add new control message NGM_VJC_GET_CONFIG 
- Implement control message ASCII'fication for all control messages
 2000-08-10 22:48:03 +00:00
Archie Cobbs
57b57be3ec Take advantage of the new unsigned and hex integer types. 2000-08-10 22:45:54 +00:00
Archie Cobbs
8fccb7e954 - Make statistics unsigned. 
- Add new control message to atomically get and clear statistics.
 2000-08-10 22:44:41 +00:00
Archie Cobbs
7b3bf3f9aa - Add new unsigned and hex integer parse types 
- Fix bug in commented example code
 2000-08-10 22:43:38 +00:00
Archie Cobbs
8db3c6cd29 - Add new unsigned and hex integer parse types; this allows simplifying 
the bytearray parse type.
- Allocate (larger) temporary work buffer dynamically instead of on the
  stack when comparing to the default value.
 2000-08-10 22:42:25 +00:00
Archie Cobbs
7b38c4e4d9 RFC 1661 requires that all LCP packets are sent with no address and 
control field compression. The ng_ppp(4) node correctly follows this
rule. However, PPPoE is an exception: when doing PPPoE *all* frames
are sent with address and control field compression.

Alter this node's behavior so that when an outgoing frame is received,
any leading address and control field bytes are removed. This makes
this node compatible with ng_ppp(4).
 2000-08-10 20:05:12 +00:00
Archie Cobbs
1baeddb81b In a struct sockaddr, sa->sa_len can be zero if uninitialized. 
Make sure that this doesn't cause a problem when parsing.
 2000-08-09 23:57:44 +00:00
Archie Cobbs
3b49655c07 Fix bug where bundle-level receive statistics were not getting updated. 2000-08-09 01:43:21 +00:00
Archie Cobbs
8a660c773a Fix a bug where we were accessing already free'd memory during node shutdown. 
Detected via:	0xdeadc0de
 2000-08-07 22:41:12 +00:00
Archie Cobbs
4b39c3c7b3 Add three new control messages to the ng_ether(4) netgraph node type: 
NGM_ETHER_GET_ENADDR:	Get the device's Ethernet address
    NGM_ETHER_SET_PROMISC:	Enable/disable promiscuous mode
    NGM_ETHER_SET_AUTOSRC:	Enable/disable packet source address override
 2000-08-07 18:52:26 +00:00
Archie Cobbs
9dcab5306e Fix misspelling. 2000-08-05 20:17:04 +00:00
Archie Cobbs
da010626df Followup to previous commit.. 
- It's worthwhile to use untimeout(9), even though we must still protect
  against "false" timeouts, because most of the time it saves having to
  handle a dummy timeout event.
- Slight tweaks to the delayed ACK algorithm paramters.
 2000-07-25 18:57:20 +00:00
Archie Cobbs
678f9e335e Several fixes: 
- Fix slowness when operating over fast connections, where the timeout(9)
  granularity is on the same order of magnitude as the round trip time.
  timeout(9) can happen up to 1 tick early, which was causing receive
  ack timeouts to happen too early, causing bogus "lost" packets.
- Increase the local time counter to 64 bits to avoid roll-over.
- Keep statistics on memory allocation failures.
- Add a new option to always include the ack when sending data packets.
  Might be useful in high packet loss situations. Might not.
 2000-07-25 00:23:19 +00:00
Archie Cobbs
d2ea40c23f Allocate memory with M_NOWAIT instead of M_WAITOK, because it's possible 
for these routines to be called from an interrupt context.

PR:		kern/20057
 2000-07-20 17:23:49 +00:00
Archie Cobbs
7c24617ca0 Remove node's name reference when the interface is detached; 
otherwise, the ng_ether.ko KLD will never be unloadable after
all Ethernet interfaces are detached, as it should be, because
of the lingering extra reference.

Submitted by:	"Yevmenkin, Maksim N, CSCIO" <myevmenkin@att.com>
 2000-07-19 17:33:53 +00:00
Archie Cobbs
840e97785b Set NG_INVALID flag when destroying node. 2000-07-14 22:35:13 +00:00
Jeroen Ruigrok van der Werven
514baf3f99 Fix typo, teh -> the. 2000-07-14 11:17:16 +00:00
Archie Cobbs
051fbf7d66 Fix race condition caused by using NG_SEND_DATAQ() where we meant 
to use ng_queue_data().

Reported by:	Udo Erdelhoff <ue@nathan.ruhr.de>
 2000-07-12 23:55:07 +00:00
Julian Elischer
561e4fb9f6 Don't forget to set our MAC address into packets we wre sending out via 
netgraph. Eventually we may need to have a separate hook for packets
that already have a source AMC address but for now just drop it in.
Should fix PPPoE.
 2000-07-06 15:35:59 +00:00
Poul-Henning Kamp
7095e0970e Experiemntal ascii based device configuration mechanism. 
This may or may not survive, decision will be made well before 5.0-R
 2000-07-03 13:34:18 +00:00
Archie Cobbs
e962a82308 Fix incorrectly implemented receive ACK timeout algorithm: 
instead of bumping the recvAck counter by one, pretend that
all outstanding xmit packets are acknowleged, and restart
transmitting anew, with an empty (but halved) transmit window.

Put a lower bound on the adaptive timeout value.
 2000-06-28 19:43:34 +00:00
Archie Cobbs
e1e1452d61 Make the ng_ether(4) node type dynamically loadable like the rest. 
This means 'options NETGRAPH' is no longer necessary in order to get
netgraph-enabled Ethernet interfaces. This supports loading/unloading
the ng_ether.ko and attaching/detaching the Ethernet interface in any
order.

Add two new hooks 'upper' and 'lower' to allow access to the protocol
demux engine and the raw device, respectively. This enables bridging
to be defined as a netgraph node, if so desired.

Reviewed by:	freebsd-net@freebsd.org
 2000-06-26 23:34:54 +00:00
Archie Cobbs
3cd7db2297 - Start sequence numbers at zero instead of one; the rest of the 
world seems to interpret the spec this way
- Initialize transmit window to two instead of one; helps get things
  going initially when the first packet may get dropped
- Really fix the shutdown + timeout race condition this time
 2000-06-26 19:43:24 +00:00
Archie Cobbs
b4c44c30d8 Fix bug where receive statistics for the bundle were not getting updated. 2000-06-01 01:29:49 +00:00
Jake Burkholder
e39756439c Back out the previous change to the queue(3) interface. 
It was not discussed and should probably not happen.

Requested by:		msmith and others
 2000-05-26 02:09:24 +00:00
Jake Burkholder
740a1973a6 Change the way that the queue(3) structures are declared; don't assume that 
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by:	phk
Reviewed by:	phk
Approved by:	mdodd
 2000-05-23 20:41:01 +00:00
Archie Cobbs
b715c697bf Add hook for IPv6. 2000-05-10 16:54:00 +00:00
Archie Cobbs
9bee7adfa8 Fix a couple of bugs: 
- Properly handle 32 bit sequence numbers when they wrap around
- Don't drop GRE packets with stale ACK numbers, just ignore the ACK
- Close race between node being shutdown and timer going off
Also add support for lots of statistics, and control message ASCIIfication
 2000-05-05 01:11:39 +00:00
Archie Cobbs
1bdebe4d45 Don't assume *lasthook is initialized in ng_path2node(). 2000-05-02 17:09:46 +00:00
Archie Cobbs
a9b3dca54d Fix broken multi-link fragment reassembly algorithm. 
Add hook for IPv6. Misc cleanups.

PR:		kern/16335
 2000-05-02 00:09:18 +00:00
Archie Cobbs
dce9390ed0 Macro call to ng_send_dataq() should have been to ng_send_data() instead. 2000-05-01 23:34:15 +00:00
Archie Cobbs
a096e45ab9 Use 'type_name' structure field instead of 'typename', which is 
a C++ reserved work.

Add a ng_copy_meta() function.
 2000-05-01 23:29:19 +00:00
Peter Wemm
cc3daab531 A temporary band-aid for ng_base. It works for some people, a better 
fix will follow.

Submitted by:   Gary Jennejohn <garyj@muc.de>
 2000-05-01 21:26:50 +00:00
Peter Wemm
99ff81767f Minimal tweak to make the ng_XXX modules depend on netgraph so that they 
see its symbols and link ok.
 2000-04-29 13:36:07 +00:00
Julian Elischer
a4ec03cfa8 Two simple changes to the kernel internal API for netgraph modules, 
to support future work in flow-control and 'packet reject/replace'
processing modes.

reviewed by: phk, archie
 2000-04-28 17:09:00 +00:00
Poul-Henning Kamp
3389ae9350 Remove ~25 unneeded #include <sys/conf.h> 
Remove ~60 unneeded #include <sys/malloc.h>
 2000-04-19 14:58:28 +00:00
Archie Cobbs
52ec4a0370 Fix uninitialized variable. 
PR:		kern/17911
Submitted by:	Tom Pavel <pavel@alum.mit.edu>
 2000-04-12 17:29:33 +00:00
Archie Cobbs
af7ab18437 A netgraph node that implements Microsoft Point-to-Point compression 
(MPPC) and Microsoft Point-to-Point encryption (MPPE) protocols.

Note: the MPPC part is disabled as it requires proprietary files.

Obtained from:	Whistle source tree
 2000-04-09 21:04:55 +00:00
Archie Cobbs
382379f8a8 Call bpfdetach() before going away. 2000-03-21 01:42:56 +00:00
Poul-Henning Kamp
63909a9015 Newer ciscos have become more picky, and will not accept the MULTICAST bit 
being set for unicast packets.
 2000-03-17 17:06:33 +00:00
Archie Cobbs
15ba31b9ad Updates to the ng_iface(8) netgraph node type: 
- Make iface nodes removable on shutdown since FreeBSD now supports
    removable interfaces
  - Simplify supporting new protocols using family_enqueue(); add a
    few new ones including IPv6
  - Add support for configurable interface mode using new
    NGM_IFACE_POINT2POINT and NGM_IFACE_BROADCAST control messages
  - Remove NGM_IFACE_GET_IFADDRS control message; it just duplicates
    the functionality of SIOCGIFCONF
 2000-03-13 19:18:10 +00:00
Archie Cobbs
9a9a26fd5a Some minor prototype tweaks. 2000-03-13 19:05:11 +00:00
Archie Cobbs
af207f2160 Use snprintf() instead of sprintf(). 2000-03-13 18:54:10 +00:00
Archie Cobbs
c1b9e5f25b Fix typo: "ng_parse_fixedsstring_info" -> "ng_parse_fixedstring_info" 2000-03-13 18:50:38 +00:00
Archie Cobbs
5c63f81fd4 Add control message ASCII conversion for this node type. 2000-01-27 01:32:53 +00:00
Archie Cobbs
4c641908e9 Fix a few obscure memory leaks. 2000-01-05 20:36:07 +00:00
Archie Cobbs
4164c44770 Fix race condition caused by missing splnet()'s. 2000-01-04 22:06:08 +00:00
Peter Wemm
664a31e496 Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot).  This is consistant with the other
BSD's who made this change quite some time ago.  More commits to come.
 1999-12-29 04:46:21 +00:00
Archie Cobbs
1e7a9f724c Fix bugs in the MP fragment reassembly code that can cause a panic. 1999-12-17 23:29:04 +00:00
Archie Cobbs
add85a1d6e New netgraph node type 'pptpgre': this performs GRE encapsulation 
for the PPTP protocol as specified in RFC 2637.
 1999-12-08 18:55:39 +00:00
Julian Elischer
647b86df6e Remove a bunch of un-needed includes. 
Submitted by: phk@freebsd.org
 1999-12-07 05:50:48 +00:00
Archie Cobbs
ab0d3c94db Change definition of NG_BPF_HOOKPROG_SIZE() so as not to require 
a structure pointer, just the number of BPF instructions.
 1999-12-06 18:43:32 +00:00
Archie Cobbs
92a3e5521f New netgraph node type, ng_bpf(8). This node type allows you to 
apply bpf(4) filters to data travelling through a netgraph network.
 1999-12-03 21:21:49 +00:00
Archie Cobbs
899e9c4e44 Add a new function ng_findhook() for finding a node's hook; 
if the node type provides a more efficient implementation than
the normal linear scan, use it.

Reviewed by:	julian
 1999-12-03 21:17:30 +00:00
Archie Cobbs
2076235ada Fix bug parsing 32 bit integers on machines where sizeof(long) == 4. 1999-12-03 20:27:33 +00:00
Archie Cobbs
3fae25a8a6 Use m_dup() instead of m_copypacket() to duplicate the mbuf chain. 
This fixes a bug where if the original packet was modified downstream
of the tee node, then the copy could get modified too.
 1999-12-01 23:11:58 +00:00
Archie Cobbs
63e2ac54d1 Add more comments describing how to use parse types and how they work. 1999-12-01 19:41:15 +00:00
Archie Cobbs
fa200997c8 Show how to supply a struct ng_cmdlist for (de)asciification 
of control messages.

Suggested by:	julian
 1999-12-01 19:40:37 +00:00
Julian Elischer
d0fef8084f change intial timeout for session negotiation from 1 to 2 seconds. 
One second was being hit too many times in normal situations.
 1999-12-01 08:05:56 +00:00
Archie Cobbs
f8307e1233 Add two new generic control messages, NGM_ASCII2BINARY and 
NGM_BINARY2ASCII, which convert control messages to ASCII and back.
This allows control messages to be sent and received in ASCII form
using ngctl(8), which makes ngctl a lot more useful.

This also allows all the type-specific debugging code in libnetgraph
to go away -- instead, we just ask the node itself to do the ASCII
translation for us.

Currently, all generic control messages are supported, as well as
messages associated with the following node types: async, cisco,
ksocket, and ppp.

See /usr/share/examples/netgraph/ngctl for an example of using this.

Also give ngctl(8) the ability to print out incoming data and
control messages at any time.  Eventually nghook(8) may be subsumed.

Several other misc. bug fixes.

Reviewed by:	julian
 1999-11-30 02:45:32 +00:00
Archie Cobbs
25792ef324 Change the prototype of the strto* routines to make the second 
parameter a char ** instead of a const char **.  This make these
kernel routines consistent with the corresponding libc userland
routines.

Which is actually 'correct' is debatable, but consistency and
following the spec was deemed more important in this case.

Reviewed by (in concept):	phk, bde
 1999-11-24 01:03:08 +00:00
Julian Elischer
aa548c6abe oops cut-n-paste error 1999-11-21 23:11:52 +00:00
Julian Elischer
cae912fcc8 It's time to only allow root to manipulate netgraph nodes. 
(I meant to do this before checking in to FreeBSD and forgot)
 1999-11-21 23:06:30 +00:00
Julian Elischer
490ccf9c5a Hopefully the last patch from Brian to get server side PPPoE working. 
remove a 'free' that is no longer needed.
 1999-11-21 22:18:54 +00:00
Julian Elischer
6faf164ce9 Fixes from brian. With some changes from me. 
Allows FreeBSD to run as a PPPOE server
One patch still not included.
 1999-11-21 10:43:05 +00:00
Archie Cobbs
046eea23cf Revert previous commit now that 'acfcomp' has been removed from 
libnetgraph/debug.c to fix make world.
 1999-11-19 20:42:14 +00:00
Julian Elischer
0d28d9ea80 Add a field archie forgot to merge in from out sources. 1999-11-19 20:32:46 +00:00
Archie Cobbs
0e97a08fe9 Use 'struct ng_xxx_private' instead of 'struct private' to help gdb 
disambiguate when debugging.
 1999-11-19 05:50:29 +00:00
Archie Cobbs
62838fae89 Fix bug where hook pointers were not getting updated on disconnection. 1999-11-19 05:49:54 +00:00
Archie Cobbs
da0929306d Move misplaced #define. 1999-11-19 05:49:18 +00:00
Archie Cobbs
19bff684a4 Add some safety using KASSERT() and splnet(). 1999-11-19 05:45:11 +00:00
Archie Cobbs
b2da83c2f5 Use KASSERT() instead of old #ifdef DIAGNOSTICS. 
Add more INVARIANTS-enabled sanity checking.
 1999-11-19 05:43:33 +00:00
Archie Cobbs
19a52c592d Remove the address and control field compression functionality of this 
node type.  ACF is device independent and therefore belongs in ng_ppp.c
(which already implements it).
 1999-11-19 04:27:53 +00:00
Archie Cobbs
3a58352eb0 Rename 'struct private' to 'struct ng_xxx_private' to allow gdb 
to disambiguate when debugging.
 1999-11-19 04:25:39 +00:00
Archie Cobbs
4e256e6e1b When allocating a new PKTHDR mbuf, always set m->m_pkthdr.rcvif = NULL. 1999-11-17 17:41:22 +00:00
Archie Cobbs
cb3c7a5d3b New netgraph node type "ksocket". 
Obtained from:	Whistle source tree
 1999-11-16 23:25:11 +00:00
Archie Cobbs
309c48c65b More bug fixes for the VJ Compression node. Seems to work now (really). 1999-11-15 20:02:58 +00:00
Julian Elischer
bdaf2e812a Small fixes from Brian for the Server side of PPPoE. 1999-11-15 04:03:34 +00:00
Julian Elischer
1f89d938ec Rework some tag handling, prompted by Brian Somers. 1999-11-14 17:26:58 +00:00
Julian Elischer
4adb13fd61 Try handle missing packet tags better. 
Inspired by changes suggested by brian Somers.
 1999-11-14 10:21:26 +00:00
Brian Somers
03e3936479 Provide an empty name to getsockname() if one hasn't been set up. 
Ok'd (for now) by: julian
 1999-11-11 20:08:04 +00:00
Archie Cobbs
0e11d0f3ea More bug fixes. 1999-11-10 23:56:57 +00:00
Archie Cobbs
b213189995 Minor change to the configuration of number of slots. 1999-11-10 23:56:19 +00:00
Archie Cobbs
3f47e1e357 Fix some bugs; seems to work now. Minor change to the configuration field 
to make the number of compression slots parameter consistent with what
IPCP negotiates (ie, the number of slots - 1).
 1999-11-10 06:17:14 +00:00
Archie Cobbs
d690a6e798 Move handling of the address and control fields into the PPP node; 
they belong there because they are device independent.
Also some other misc. fixes.
 1999-11-10 06:15:22 +00:00
Julian Elischer
12f035e0fd Remove a null pointer reference 
Submitted by: Brian Somers (brian@freebsd.org)
 1999-11-09 00:31:04 +00:00
Archie Cobbs
3a0d1d886a Fix crash when trying to duplicate a NULL meta. 1999-11-08 03:11:22 +00:00
Archie Cobbs
a8e9726dfd Get rid of the 'sync2' hook, which was a hack. Instead, just 
directly detect outgoing LCP frames and do the right thing.
 1999-11-08 03:10:20 +00:00
Archie Cobbs
a770f0a40f Add support for the IFF_MULTICAST flag. There's not 
much to do because we are a point-to-point interface.

Submitted by:	phk
 1999-11-08 03:08:59 +00:00
Julian Elischer
ef050c81c7 Be more accepting about the format of node IDs. 
Submitted by: Brian Somers <brian@Awfulhak.org>
 1999-11-07 04:18:20 +00:00
Julian Elischer
0e12356c53 Move a structure Netstat needs back out to ng_socketvar.h (yech) 1999-11-06 19:27:04 +00:00
Archie Cobbs
e149c4e211 Fix several bugs found in the first bit of testing. 1999-11-06 02:09:17 +00:00
Julian Elischer
df390790d1 Re-add this till I can fix netstat to not need it. 1999-11-05 20:04:00 +00:00
Julian Elischer
45168c5d16 Add the option for a socket node to shut down when the last hook 
to an adjoining node is removed. Also move file scope definitions back
within the file, and remove un-needed include file.
 1999-11-05 02:18:08 +00:00
Poul-Henning Kamp
5b664c7c13 Move isfoo() and friends to the newly created sys/ctype.h. 
Urged by:       bde
 1999-11-03 17:54:26 +00:00
Archie Cobbs
9cb887a606 Add statistics counters to "tee" netgraph node type. 1999-11-02 23:31:49 +00:00
Archie Cobbs
2b70adcbbe Simplify checking/parsing of strings using strtoul(), isdigit(), etc. 1999-11-02 23:18:01 +00:00
Archie Cobbs
fb1fc8abee Fix some bugs in MP allocation routine when links are non-equivalent. 1999-11-01 19:44:28 +00:00
Julian Elischer
74f5c6aa25 Add typedefs for node methods 
Suggested by phk.
 1999-11-01 10:00:40 +00:00
Julian Elischer
a923d43a67 braino in sample code. 
picked up by phk.
 1999-11-01 05:27:44 +00:00
Julian Elischer
dc90cad9d2 Start making the contents of the generic framework opaque to the nodes. 
This step: IDs are no-longer the address of the node.
Reviewd by: Archie@freebsd.org
 1999-11-01 00:31:14 +00:00
Archie Cobbs
3949bee834 Revamped and more useful PPP node type, supporting multi-link PPP directly. 
This is one piece of the grand unified PPP daemon concept, whereby using
netgraph nodes enables PPP data to be handled completely in kernel land,
while leaving negotiation/control to be handled by a single user land
daemon, no matter what the link type(s).

This is a safety checkin only; it compiles, but is utterly untested.

Concept reviewed by:	julian, brian
 1999-10-29 22:30:03 +00:00
Julian Elischer
d9da9cba44 When the session is running, don't include the ethernet header in the length of the payload. 1999-10-29 04:32:27 +00:00
Julian Elischer
ed52f174ee fix typo 1999-10-27 11:53:53 +00:00
Julian Elischer
04853d8a82 The node goes away when last session disconnects or when disconnected from 
the ethernet node.
 1999-10-27 11:48:35 +00:00
Julian Elischer
8876b55d7b change PPPoE occurences to pppoe. Not JUST a cosmeting change. 
some occurrances needed to be the same as the filenmnae which was pppoe
 not PPPoE.
 1999-10-27 11:29:51 +00:00
Julian Elischer
bef9dae05a cleanups regarding misused m_pullup() and similar. 1999-10-26 22:33:54 +00:00
Julian Elischer
cfbcfe6272 Send the negotiated session ID on our packets (DUH!). 1999-10-26 11:26:23 +00:00
Julian Elischer
9fcb3d8332 Send a PADT message to the peer when a session is closed down. 1999-10-26 11:04:25 +00:00
Julian Elischer
4b276f9051 This one actually gets session data to the waiting ppp daemon 
(well, my test program  at least).
 1999-10-26 09:25:18 +00:00
Julian Elischer
0c65c1354c This one actually negotiated it's way into a session. 
still tuning to be done.
 1999-10-26 08:08:48 +00:00
Julian Elischer
382667d313 Bring ng_iface up-to-date with what has happenned to the bpf code. 1999-10-25 22:36:39 +00:00
Julian Elischer
b86d0a9e51 more fixes, braino's, typo's, etc. 1999-10-23 22:46:38 +00:00
Julian Elischer
1e2510f8ef A version of the pppoe code ellicits a response from the ISP end 
(but still not quite right)
 1999-10-23 15:15:42 +00:00
Julian Elischer
37d636b2d4 dang, deleted a line 1999-10-23 04:52:54 +00:00
Julian Elischer
b58a8a3b1d Now that Netgraph is in the system there are some cleanups we can do. 
Also save a slightly closer to completion version of the PPPOE code.

Submitted by: Archie Cobbs <archie@freebsd.org>
 1999-10-23 04:28:11 +00:00
Julian Elischer
4cf49a4355 Whistle's Netgraph link-layer (sometimes more) networking infrastructure. 
Been in production for 3 years now. Gives Instant Frame relay to if_sr
and if_ar drivers, and PPPOE support soon. See:
ftp://ftp.whistle.com/pub/archie/netgraph/index.html
for on-line manual pages.

Reviewed by: Doug Rabson (dfr@freebsd.org)
Obtained from:  Whistle CVS tree
 1999-10-21 09:06:11 +00:00