Commit Graph

33 Commits

Author SHA1 Message Date
rwatson
fb9ffed650 Merge the remainder of kern_vimage.c and vimage.h into vnet.c and
vnet.h, we now use jails (rather than vimages) as the abstraction
for virtualization management, and what remained was specific to
virtual network stacks.  Minor cleanups are done in the process,
and comments updated to reflect these changes.

Reviewed by:	bz
Approved by:	re (vimage blanket)
2009-08-01 19:26:27 +00:00
zec
c888ce3315 Fix error message content.
Approved by:	julian (mentor)
MFC after:	3 days
2008-09-21 07:33:33 +00:00
bz
1021d43b56 Commit step 1 of the vimage project, (network stack)
virtualization work done by Marko Zec (zec@).

This is the first in a series of commits over the course
of the next few weeks.

Mark all uses of global variables to be virtualized
with a V_ prefix.
Use macros to map them back to their global names for
now, so this is a NOP change only.

We hope to have caught at least 85-90% of what is needed
so we do not invalidate a lot of outstanding patches again.

Obtained from:	//depot/projects/vimage-commit2/...
Reviewed by:	brooks, des, ed, mav, julian,
		jamie, kris, rwatson, zec, ...
		(various people I forgot, different versions)
		md5 (with a bit of help)
Sponsored by:	NLnet Foundation, The FreeBSD Foundation
X-MFC after:	never
V_Commit_Message_Reviewed_By:	more people than the patch
2008-08-17 23:27:27 +00:00
emaste
c199a9f3a2 Ensure message passed to "settimestamp" and "setcounter" is the right
length.  Use NULL instead of 0.

Submitted by: glebius, ru
2007-03-02 14:36:19 +00:00
emaste
2c703c5104 Add "setcounter" and "getcounter" messages, providing the the ability
to embed up to four counters in outgoing packets.  The message specifies
the offset at which the counter should be inserted as well as the
parameters of the counter.

Example usage:

  ngctl msg src0: setcounter \
    '{ index=0 offset=0x40 flags=1 width=4 increment=1 max_val=12345 }'

Sponsored by:   Sandvine Incorporated
2007-03-02 01:44:04 +00:00
emaste
6086e6d82a Add "settimestamp" and "gettimestamp" messages, providing the the ability
to embed a timestamp (struct timeval) in outgoing packets.  The message
specifies the offset at which the timestamp should be inserted.

NG_SOURCE(4) gives an example usage that queues an ICMP packet.  Using that
example, the following command will insert a timestamp in the ICMP's data
payload:

  ngctl msg src0: settimestamp '{ offset=0x2a flags=1 }'

Sponsored by:	Sandvine Incorporated
2007-03-01 23:16:17 +00:00
glebius
b29d8babd1 Simplify ng_source_send() removing temporary queue and merging two
cycles into one.
2006-01-23 10:28:04 +00:00
glebius
e6fe511448 Implement an upper limit for packets per second sent by node. 2005-12-23 19:14:38 +00:00
glebius
bfd07fdc71 Major overhaul and cleanup of ng_source node.
Functional changes:
- Cut struct source_hookinfo. Just use hook_p pointer.
- Remove "start_now" command. "start" command now requires number of
  packets to send as argument. "start" command actually starts sending.
  Move the code that actually starts sending from ng_source_rcvmsg()
  to ng_source_start().
- Remove check for NG_SOURCE_ACTIVE in ng_source_stop(). We can be called
  with flag cleared (see begin of ng_source_intr()).
- If NG_SEND_DATA_ONLY() use log(LOG_DEBUG) instead of printf(). Otherwise
  we will *flood* console.
- Add ng_connect_t method, which sends NGM_ETHER_GET_IFNAME command
  to "output" hook. Cut ng_source_request_output_ifp(). Refactor
  ng_source_store_output_ifp() to use ifunit() and don't muck through
  interface list.
- Add "setiface" command, which gives ability to configure interface
  in case when ng_source_connect() failed. This happens, when we are not
  connected directly to ng_ether(4) node.
- Remove KASSERTs, which can never fire.
- Don't check for M_PKTHDR in rcvdata method. netgraph(4) does this
  for us.

Style:
- Assign sc_p = NG_NODE_PRIVATE(node) in declaration, to be
  consistent with style of other nodes.
- Sort variables.
- u_intXX -> uintXX.
- Dots at ends of comments.

Sponsored by:   Rambler
2005-04-05 17:22:05 +00:00
bmilekic
adcc57692d Make some basic grammar and style fixes to ng_source.c and ng_source.h.
The latter was particularly violated by someone's editor in the past, due
to an effect I like to call "premature linewrapping."
2005-03-10 21:50:50 +00:00
ru
71926aef8a Fallout from the ALTQ import. 2005-02-12 17:03:01 +00:00
imp
a50ffc2912 /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
glebius
0ee3c9a148 Mechanically rename s/ng_timeout/ng_callout/g, s/ng_untimeout/ng_uncallout/g.
This is done to keep both versions in RELENG_5 and support both APIs.

Reviewed by:	scottl
Approved by:	julian (mentor), implicitly
2004-12-01 11:56:32 +00:00
glebius
a033067901 - Make ng_timeout() to use callout() interface instead of timeout().
- Remove callout-hacking from ng_untimeout().

Approved by:	julian (mentor)
MFC after:	1 month
2004-11-02 21:24:30 +00:00
glebius
6e7d37729f Fix a harmless error in order of ng_timeout() arguments.
Approved by:	julian (mentor)
2004-11-02 20:26:41 +00:00
julian
8c938ed70a Slight cosmetic changes.
Also introduce a macro to be called by persistent nodes to signal their
persistence during shutdown to hide this mechanism from the node author.

Make node flags have a consistent style in naming.

Document the change.
2004-07-20 17:15:38 +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
b7d9a76d45 Use the official ng_timeout function to trigger sending. This means,
that we can get rid of of all the spl*() calls, because ng_timeout
handles the locking issues.
2004-01-30 15:34:57 +00:00
harti
a7d7d54498 Don't confuse NULL and 0, use 0 where an integer is expected. 2004-01-27 10:46:33 +00:00
harti
8ca13640ae Style: add __FBSDID, relocate some { that were on the wrong line,
correct some indendation, change __FUNCTION__ to __func__ and remove
a local KASSERT definition.
2004-01-27 10:45:37 +00:00
harti
10f9fcc036 Make ng_source to work with non-ethernet interfaces. We do this by
introducing a START_NOW command. This command does not send
and GET_IFINDEX message downstream (to wait for the response from
the ETHERNET node), but directly starts the sending process. This allows
one to generate traffic as input for any hook on any node.
2004-01-26 14:53:16 +00:00
harti
d5c0563652 Declare a function to silence a warning. 2004-01-26 14:48:21 +00:00
harti
0890739279 Should use the non-locking versions of the ifqueue macros to
fiddle around with private queues, because their mutex is not
needed. All this processing should be protected by the netgraph
locking.
2004-01-26 14:46:35 +00:00
harti
cc7ffd1cab Replace a call to bzero() with an M_ZERO flag. Replace the MALLOC() with
malloc().
2004-01-26 14:44:36 +00:00
harti
2d831aa28a The version in the type description must be the ABI version, not
the netgraph version.

Correct the return type of a function: it wants to return an error
code, so it cannot be void.
2004-01-26 14:14:09 +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
hsu
82e1e3bab0 SMP locking for ifnet list. 2002-12-22 05:35:03 +00:00
bmilekic
514c635ee6 o Untangle the confusion with the malloc flags {M_WAITOK, M_NOWAIT} and
the mbuf allocator flags {M_TRYWAIT, M_DONTWAIT}.
o Fix a bpf_compat issue where malloc() was defined to just call
  bpf_alloc() and pass the 'canwait' flag(s) along.  It's been changed
  to call bpf_alloc() but pass the corresponding M_TRYWAIT or M_DONTWAIT
  flag (and only one of those two).

Submitted by: Hiten Pandya <hiten@unixdaemons.com> (hiten->commit_count++)
2002-12-19 22:58:27 +00:00
julian
ff8f176e18 Slight redesign for fitting in with -current. 2002-11-05 01:08:11 +00:00
julian
51d9ccf841 The easy part of converting the ng_source node to -current.
More to come.. does not compile (deliberatly.. logic broken)
2002-11-02 02:29:43 +00:00
julian
7632768a03 Whitespace fixes 2002-11-02 01:26:28 +00:00
julian
2932d3587e Add the netgraph 'source' module.
This is NOT YET CONVERTED TO -current.
This node is a source for preprogrammed packets at a known rate for testing.

I will convert it to -current "in place" but will MFC teh original
pre-conversion variant as that is  what is originally submitted.
Man page my me, info from Dave's README.

Submitted by:	Dave Chapeskie <dchapeskie@SANDVINE.com>
Obtained from:	Sandvine inc.
MFC after:	1 week
2002-10-31 23:03:09 +00:00