Commit Graph

29 Commits

Author SHA1 Message Date
Gleb Smirnoff
bb964e745b Make ng_ID_t fixed size, so that its maximum value is platform independent.
This will be important in future.
2006-10-17 11:01:20 +00:00
Gleb Smirnoff
2df050ad10 In the splnet(9) times netgraph(4) was synchronous and if a message
had been replied, the reply was always delivered to the originator
synchronously.

With introduction of netgraph item callbacks and a wait channel with
mutex in ng_socket(4), we have fixed the problem with ngctl(8) returning
earlier than the command has been proceeded by target node. But still
ngctl(8) can return prior to the reply has arrived to its node.

To fix this:
 - Introduce a new flag for netgraph(4) messages - NGM_HASREPLY.
   This flag is or'ed with message like NGM_READONLY.
 - In netgraph userland library if we have sent a message with
   NGM_HASREPLY flag, then select(2) until reply comes.
 - Mark appropriate generic commands with NGM_HASREPLY flag,
   gathering them into one enum {}. Bump generic cookie.
2006-01-12 19:14:40 +00:00
Gleb Smirnoff
644168eedb Add macro NG_COPYMESSAGE(), which allocates memory and creates a
copy of given control message.
2005-04-20 12:18:22 +00:00
Gleb Smirnoff
4feaf224b8 Increase size of arglen to uint32_t, since uint16_t proved to be
not enough (e.g. listing 911 nodes). Bump NG_VERSION.

Reviewed by:	julian, archie, ru
2005-02-05 23:23:14 +00:00
Warner Losh
c398230b64 /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
Julian Elischer
f036d4081d Align netgraph message fields ready for 64-bit (and 128 bit :-) machines.
requires a recompile of netgraph users.
Also change the size of a field in the bluetooth code
that was waiting for the next change that needed recompiles so
it could piggyback its way in.

Submitted by:	jdp, maksim
MFC after:	2 days
2004-08-20 01:24:23 +00:00
Julian Elischer
a65d0dc8f2 Now that mbufs are allocated using uma,
don't check for accidental usage of mbuf 'how' flags as
they are the same thing.
2004-06-07 22:11:12 +00:00
Hartmut Brandt
87e2c66a6a 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
Hartmut Brandt
67371b0f5c Bump the netgraph header version to 6 for the change of the name
length definitions.

Reminded by: jdp
2003-11-12 17:03:40 +00:00
Hartmut Brandt
387ebc6d63 Double length of node names, hook names, command strings and types. Add
defines for these constants that include the trailing NUL byte. These
new constants have SIZ in their name instead of LEN. As soon as all
consumers in the tree are converted to use the new defines the old
defines will be put under BURN_BRIDGES.

Reviewed by:	archie, julian, ru
Approved by:	re (in principle)
2003-11-12 09:10:11 +00:00
Ruslan Ermilov
e20480bfb6 Use a single style of multiple inclusion protection for Netgraph headers.
Reviewed by:	archie, harti, emax
2003-11-11 12:30:37 +00:00
Hartmut Brandt
0eecad8da7 Remove a gcc-ism: declaring a variable array at the end of a structure
as [0] and replace it with the ISO way of writing []. This has caused
warnings with WARNS=6.
2003-10-22 07:35:05 +00:00
Poul-Henning Kamp
11589318f3 KASSERT that NG_MKMESSAGE() is not called with mbuf flags. 2003-04-18 12:37:33 +00:00
Archie Cobbs
f0184ff8e3 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
Julian Elischer
b57a79658b Clean up reference counting with relation to queued packets and the worklist,
and while I'm there, clean up the worklist insertion and removal.

Inspired by: Harti Brandt <brandt@fokus.gmd.de>
2001-02-01 20:51:23 +00:00
Julian Elischer
1acb27c64a 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 Elischer
069154d55f 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 Elischer
589f6ed8ce 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 Elischer
859a4d166c 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
David Malone
99cdf4ccb2 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
Julian Elischer
cc3bbd68c5 Since neither archie nor I work at Whistle any more, change our email
addresses to be the more usefu @freebsd.org ones
so we can keep getting bug-reports.
- man pages to follow..
2000-10-24 17:32:45 +00:00
Archie Cobbs
57b57be3ec Take advantage of the new unsigned and hex integer types. 2000-08-10 22:45:54 +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
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
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
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
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
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
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