Commit Graph

1144 Commits

Author SHA1 Message Date
mav
fd0bef772c Switch from timeval to bintime, to use 1/(2^20) of seconds instead of
microseconds. It allows to use bit shifts instead of some heavy 64bit
mul/div math operations.
2008-03-27 20:04:20 +00:00
mav
5b9ac353f2 Some minor code and math optimizations. 2008-03-26 21:19:03 +00:00
mav
9af7fc155d Rewrite node to support multiple hooks, alike to ng_l2tp, to use one pair
of pptpgre and ksocket nodes for all calls between two peers. This patch
modifies node's API by adding new "session_%04x" hook names support, while
keeping backward compatibility.

Together with appropriate user-level support (by latest mpd5) it gives
huge performance benefits for case of multiple active calls between
two peers because of avoiding data duplication and extra socket processing.
On my benchmarks I have got more then 10 times speedup for the 200
simultaneous PPTP calls between two peers.
In conclusion, it allows now to build effective "clients <=> PAC <=> PNS"
setups.
2008-03-24 22:55:22 +00:00
mav
b09a1d85ff Remove impossible (hk_peer == NULL) check from ng_address_hook().
Valid hook can't have NULL peer. Even invalid one can't, as it is resets to
deadhook, but not NULL.
2008-03-16 23:12:17 +00:00
mav
c3b3361aa8 Add session ID hashing to speedup incoming packets dispatch in case
of many connections working via the same tunnel. For example, in case
of full "client <-> LAC <-> LNS" setup.
2008-03-16 21:33:12 +00:00
mav
dd8463bf88 Improve apply callback error reporting:
Before this patch callback returned result of the last finished call chain.
Now it returns last nonzero result from all call chain results in this request.

As soon as this improvement gives reliable error reporting, it is now possible
to remove dirty workaround in ng_socket, made to return ENOBUFS error statuses
of request-response operations. That workaround was responsible for returning
ENOBUFS errors to completely unrelated requests working at the same time
on socket.
2008-03-11 21:58:48 +00:00
mav
be092ffb41 Addition to the previous commit. Release inproc in case of memory error. 2008-03-09 11:17:00 +00:00
mav
786b28be16 To avoid control data losses do not acknowledge recieving of control packet
if netgraph reported error while delivering to destination.
Reset 'next send' counter to the last requested by peer on ack timeout
to resend all subsequest packets after lost one again without additional hints.
2008-03-08 23:55:29 +00:00
mav
cbff2d5782 Send only one incoming notification at a time to reduce queue
trashing and improve performance.
Remove waitflag argument from ng_ksocket_incoming2(), it means nothing
as function call was queued by netgraph.
Remove node validity check, as node validity guarantied by netgraph.
Update comments.
2008-03-07 21:12:56 +00:00
mav
19469bf19f Increase default queue items allocation limit from 512 to 4096 items
to avoid terrible unpredicted effects for netgraph operation of their
exhaustion while allocating control messages.
Add separate configurable 512 items limit for data items allocation
for DoS/overload protection.

Discussed with:	julian
2008-03-05 22:12:34 +00:00
mav
3bb463bbf1 Implement 128 items node name hash for faster name search.
Increase node ID hash size from 32 to 128 items.
2008-03-04 18:22:18 +00:00
mav
7e474ff50b Fix incorrect field name. 2008-03-04 11:10:54 +00:00
mav
469edf6052 Use more compact LIST instead of TAILQ for session hash.
Add all listening hooks into LIST to simplify searches.
Use ng_findhook() instead of own equal implementation.
2008-03-03 19:36:03 +00:00
mav
0b47bb7a15 Make session ID generator to use session ID hash.
Make session ID generator thread-safe.
2008-03-02 23:26:35 +00:00
mav
354de8687f Add support for the libalias redirect functionality.
Submitted by:   Vadim Goncharov <vadim_nuclight@mail.ru>
2008-03-01 17:14:02 +00:00
mav
2d0cb9a815 Fix incorrect constant used in rev. 1.146 that broke node writer locking. 2008-02-25 21:24:53 +00:00
mav
166cb6ef20 Fix shutdown bug made by previous commit. 2008-02-24 10:13:32 +00:00
glebius
34f9d2c8a9 Use rtalloc1() instead of rtalloc_ign(). It returns a locked
rtentry. We quickly copy the fields of interest, and then
RTFREE_LOCKED(). This should be faster then lock & unlock the
rtentry twice.
2008-02-07 11:10:17 +00:00
mav
a735f997fd Do not use bcmp() to compare two bytes with constants. 2008-02-06 20:37:34 +00:00
mav
a51f95cd58 Cleanup and tune ng_snd_item() function as it is one of the
most busy netgraph functions.
Tune stack protection constants to avoid division operation.
2008-02-06 18:50:40 +00:00
mav
cd7d07a63f Prepare hooks direct pointers on setup to avoid heavy ng_findhook() calls
during operarion.
2008-02-04 19:26:53 +00:00
mav
083c0a5fcb Move all possible node logic out of the rcvdata() function
to the newhook()/disconnect().
Unify function names with other nodes.
2008-02-03 18:55:45 +00:00
mav
45f131f91d Revert previous commit.
glebius@ noticed that it was not a bug, but undocumented feature.
2008-02-03 10:30:45 +00:00
marck
92f929f0dd Fix one more grammo.
Noticed by:	ru
2008-02-02 08:41:53 +00:00
marck
e190c967dd Reword recent comment a bit. 2008-02-01 17:35:46 +00:00
mav
49092fb3fc Add comments about stack protection mechanism. 2008-02-01 11:01:15 +00:00
mav
7e0b4128cb Tune the message for better informativity.
Print the hook pointer as other functions do.
2008-02-01 07:25:06 +00:00
benno
538bebc843 Band-aid recent commit by mav by replacing a variable in a CTR statement with
the variable that appears as if it should've been there.

Pointy hat to:		mav
Not tested either by:	benno
2008-02-01 07:17:26 +00:00
mav
5af3bb221f Implement Session-ID hashing to improve receive performance scalability
for big number of concurrent sessions.
2008-01-31 22:42:37 +00:00
mav
94236d3d42 Some code reformat. 2008-01-31 10:13:04 +00:00
mav
5df3e934b9 Implement stack protection based on GET_STACK_USAGE() macro.
This fixes system panics possible with complicated netgraph setups
and allows to avoid unneded extra queueing for stack unwrapping.
2008-01-31 08:51:48 +00:00
mav
5eebdfa072 Avoid data copying when it is possible.
bpf_filter() is able to work directly on mbuf chain.
2008-01-28 22:37:17 +00:00
mav
1a411ba3c5 Run expire even without export hook connected.
PR:	kern/119839
2008-01-27 15:01:16 +00:00
mav
c2d1050fba Fix memory leak when export hook is not connected. 2008-01-27 09:22:10 +00:00
mav
2adafc5538 Remove one very strange unneded if. 2008-01-27 08:52:41 +00:00
mav
34b15a0c5e Slightly simplify code. 2008-01-27 02:04:12 +00:00
mav
afe3cc011f Improve multilink receive performance by netgraph item reuse. 2008-01-26 22:42:47 +00:00
mav
56891c11ee Improve multilink xmit performance by netgraph item reuse. 2008-01-26 22:41:14 +00:00
mav
4b87cfa8f8 Improve multilink receive performance with fragment headers preallocation. 2008-01-26 22:39:05 +00:00
mav
1a704c3175 Fix bundle xmit octets stats for packet-split operation mode. 2008-01-23 11:47:09 +00:00
jeff
ce18638805 Remove explicit locking of struct file.
- Introduce a finit() which is used to initailize the fields of struct file
   in such a way that the ops vector is only valid after the data, type,
   and flags are valid.
 - Protect f_flag and f_count with atomic operations.
 - Remove the global list of all files and associated accounting.
 - Rewrite the unp garbage collection such that it no longer requires
   the global list of all files and instead uses a list of all unp sockets.
 - Mark sockets in the accept queue so we don't incorrectly gc them.

Tested by:	kris, pho
2007-12-30 01:42:15 +00:00
mav
cfcf7dfc62 Add support for optional "AC-Name\Service-Name" syntax at NGM_PPPOE_CONNECT
argument. It allows ppp, mpd or any other node consumer to request
connection to specified access concentrator.

Proposed by:	Alexander A. Burylov <burylov@mail.ru>
2007-12-29 19:44:41 +00:00
mav
b82597528b Fix incorrectly placed bracket in pppoe_find_svc(). 2007-12-26 19:33:53 +00:00
mav
23a956d0c8 Remove some prehistoric never used defines. 2007-12-26 19:15:07 +00:00
rwatson
bdee30611d Add a new 'why' argument to kdb_enter(), and a set of constants to use
for that argument.  This will allow DDB to detect the broad category of
reason why the debugger has been entered, which it can use for the
purposes of deciding which DDB script to run.

Assign approximate why values to all current consumers of the
kdb_enter() interface.
2007-12-25 17:52:02 +00:00
mav
f381ac2711 Add option to set packets per second limits instead of default
bits per second ones.
2007-12-19 22:50:14 +00:00
mav
a1921d35de Increase control channel xmit queue to 128 packets.
Previous value 16 was too small for real LAC as temporal activity
spike cound easily overflow queue demanding tunnel disconnection due
to possible state inconsistency.
2007-12-12 19:04:30 +00:00
julian
4140cda7c9 Add ipv6 to ng_cisco node. ipv6 wasn't a reality when I wrote it..
Submitted by: Marko Zec
2007-11-30 23:27:39 +00:00
glebius
6cd20c281d - Merge all the ng_send_fn2* functions into one - ng_send_fn2(),
removing some copy&pasted code.
- Reduce copy and paste in ng_apply_item().
- Resurrect ng_send_fn() as a valid symbol, not a define.

Reviewed by:	mav, julian
2007-11-14 11:25:58 +00:00
emax
ff226f6ee0 Fix locking issue in ng_btsocket_l2cap_ctloutput()
Submitted by:	Heiko Wundram (Beenic) < wundram at beenic dot net >
MFC after:	3 days
2007-10-31 16:17:20 +00:00
emax
0cf18b2c7c Allow RFCOMM servers to bind to a ''wildcard'' RFCOMM channel
zero (0). Actual RFCOMM channel will be assigned after listen(2)
call is done on a RFCOMM socket bound to a ''wildcard'' RFCOMM
channel zero (0).

Address locking issues in ng_btsocket_rfcomm_bind()

Submitted by:	Heiko Wundram (Beenic) < wundram at beenic dot net >
MFC after:	1 week
2007-10-29 19:06:47 +00:00
mav
a7fd7284ec Minor debug message fix. 2007-10-28 18:05:59 +00:00
ru
8de25952d5 Fix build with NETGRAPH_DEBUG. 2007-10-19 20:09:58 +00:00
mav
5aea982161 Implement new apply callback mechanism to handle item forwarding.
When item forwarded refence counter is incremented, when item
processed, counter decremented. When counter reaches zero,
apply handler is getting called.
Now it allows to report right connect() call status from user-level
at the right time.
2007-10-19 15:04:17 +00:00
mav
bc7eda2e9a Split ng_pppoe_rcvdata() function into three hook-specific ones
to simplify code and reduce stack usage.
2007-10-14 09:58:22 +00:00
mav
b5f6701dea Remove ng_pppoe_sendpacket() function to simplify code as it is called
as much times as it has cases inside of it.
2007-10-14 09:51:19 +00:00
mav
58809b0788 Protect struct seq with mutex.
Approved by:	glebius (mentor)
2007-10-12 04:56:26 +00:00
mav
2d88988487 Remove one unneded assertion. It is also checked in
ng_l2tp_seq_check().

Approved by:	glebius (mentor)
2007-10-12 04:54:43 +00:00
mav
fab370c5a1 Replace single rcvdata with 3 distinct to simplify code and
reduce stack usage.

Approved by:	mentor (glebius)
2007-10-12 04:53:23 +00:00
mav
becababb0c Remove duplicate variables. 2007-10-12 04:51:30 +00:00
mav
1f0cbf5a23 Dead code removal.
Approved by:	re (kensmith), glebius (mentor)
2007-09-21 08:25:55 +00:00
mav
01f9f69635 This is optimization of ether and debug hooks determination. It
simplifies code and should speedup pppoe_findsession() function which is
called for every incoming packet.

Approved by:	re (kensmith), glebius (mentor)
2007-09-21 08:24:08 +00:00
mav
14a66bdd4b This patch fixes thread unsafe usage of global pkt_hdr
variable. Second part is not so important, but IMO is also good.

Approved by:	re (kensmith), glebius (mentor)
2007-09-21 08:16:33 +00:00
mav
1b8fdda809 Fix typo which brokes VJ decompression
when VJC negotiated in only one direction.

Approved by:	re (bmah), glebius (mentor)
2007-09-15 16:55:44 +00:00
emax
e04fc3e9d0 Return EADDRNOTAVAIL instead of EDESTADDRREQ error when
listen(2) is called on improperly bound socket.

Suggested by:	Iain Hibbert
Approved by:	re (kensmith)
MFC after:	3 days
2007-08-23 16:55:22 +00:00
mav
093e149434 Add ng_send_fn() error handeling inside ng_con_nodes().
Without it some errors may left unnoticed and unhandeled
that will lead to hooks left in half-connected state.

Reviewed by:	julian@
Approved by:	re (kensmith), glebius (mentor)
2007-08-18 11:59:17 +00:00
emax
7473c1093a Make ng_h4(4) MPSAFE. Use similar to ng_tty(4) locking strategy.
Reconnect ng_h(4) back to the build.

Reviewed by:	kensmith
Approved by:	re (kensmith)
MFC after:	1 month
2007-08-13 17:19:28 +00:00
rwatson
23574c8673 Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which
previously conditionally acquired Giant based on debug.mpsafenet.  As that
has now been removed, they are no longer required.  Removing them
significantly simplifies error-handling in the socket layer, eliminated
quite a bit of unwinding of locking in error cases.

While here clean up the now unneeded opt_net.h, which previously was used
for the NET_WITH_GIANT kernel option.  Clean up some related gotos for
consistency.

Reviewed by:	bz, csjp
Tested by:	kris
Approved by:	re (kensmith)
2007-08-06 14:26:03 +00:00
mav
86e4cc2cc9 Add 64bit statistic counters to the ng_ppp node.
64bit counters are needed to simplify traffic accounting and
reduce system load at the big PPP concentrators.

Approved by:	re (rwatson), glebius (mentor)
2007-08-01 20:49:35 +00:00
mav
7ba336020a This patch improves fine-grained locking for the ng_ppp node.
Till now node's transmit path was completely unprotected
and so wasn't thread safe in multilink mode. It's receive path was
declared as WRITER as the simpliest protection method but it
reduces performance when compression or encryption enabled.

Approved by:	re (rwatson), glebius (mentor)
2007-08-01 20:38:37 +00:00
rwatson
a62dbe240a Replace references to NET_CALLOUT_MPSAFE with CALLOUT_MPSAFE, and remove
definition of NET_CALLOUT_MPSAFE, which is no longer required now that
debug.mpsafenet has been removed.

The once over:	bz
Approved by:	re (kensmith)
2007-07-28 07:31:30 +00:00
mav
5a9e4eaaa3 Reduce stack usage by 256 bytes per call. It helps to avoid kernel
stack overflow in complicated traffic filtering setups.

There can be minor performance degradation for the MHLEN < len <= 256 case
due to additional buffer allocation, but it is a rare case.

Approved by:	re (rwatson), glebius (mentor)
MFC after:	1 week
2007-07-26 18:15:02 +00:00
glebius
78c75cc535 Honor the IFF_MONITOR flag.
PR:		kern/99500
Submitted by:	Craig Leres <leres ee.lbl.gov>
Approved by:	re (kensmith)
2007-07-26 10:54:33 +00:00
emax
7fce1d7b71 Mark ng_h4(4) as not MPSAFE and disconnect it from the build for now.
Approved by:	re (rwatson)
2007-07-10 16:38:43 +00:00
imp
f58caadafc These modules depend on usb, make that explicit
Approved by: re@
2007-06-23 04:34:38 +00:00
mjacob
384923a3f7 Fix various compilation warnings for gcc-4.2.
Approved by:	re (bruce)
2007-06-23 00:02:20 +00:00
emax
0d312fb512 Replace sosend() with direct call to .pru_send method on the
L2CAP socket. This is to avoid LOR with sx(9) lock in sblock()
called from sosend_generic().

Approved by:	re (kensmith)
MFC after:	1 week
2007-06-21 19:55:49 +00:00
delphij
db531f1bee Fix build problem caused by a set of typos.
Reported by:	tinderbox
Approved by:	re (mux)
2007-06-19 14:56:35 +00:00
imp
17a6c4798c Finish removing usb_port.h compat macros. 2007-06-18 22:23:20 +00:00
ru
7d990e0773 Remove two more instances of the USBDEV() macro. 2007-06-13 12:36:01 +00:00
mav
a015640863 Add missing ng_uncallout() on node shutdown.
Approved by:	glebius (mentor)
2007-06-13 11:01:17 +00:00
emax
ec70de06d6 Catch up with USB cleanups and fix the world 2007-06-13 00:32:00 +00:00
imp
48df7c2e40 Eliminate usb_thread_t. 2007-06-12 17:30:54 +00:00
imp
d4a700c2dc Expand USB_ATTACH_{ERROR,SUCCESS}_RETURN inline and eliminate from
usb_port.h.  They aren't needed, and are a legacy of this code's past.
2007-06-12 15:37:19 +00:00
imp
e42a97f12a Silence a gcc warning in a more canonical way (evl = NULL rather than &evl).
I saw warnings here at one point on the arm build.
2007-06-11 15:29:02 +00:00
imp
7462ef5293 Expand USB_ATTACH_SETUP inline.
Kill devinfo stuff.
2007-06-09 06:53:27 +00:00
dwmalone
771efb08f5 Despite several examples in the kernel, the third argument of
sysctl_handle_int is not sizeof the int type you want to export.
The type must always be an int or an unsigned int.

Remove the instances where a sizeof(variable) is passed to stop
people accidently cut and pasting these examples.

In a few places this was sysctl_handle_int was being used on 64 bit
types, which would truncate the value to be exported.  In these
cases use sysctl_handle_quad to export them and change the format
to Q so that sysctl(1) can still print them.
2007-06-04 18:25:08 +00:00
mav
2f12bfb53b No need to update link queue stats when round-robin algorithm enabled.
Approved by:	glebius (mentor)
2007-06-04 13:50:09 +00:00
glebius
4623bf3eb1 Partially back out rev. 1.127, to restore broken functionality. This
should be redesigned, but better enter RELENG_7 with a working ngctl(8).

Agreed by:	julian
2007-06-01 09:20:57 +00:00
rwatson
79a2e40812 Universally adopt most conventional spelling of acquire. 2007-05-27 20:50:23 +00:00
mav
e8130fb9e7 Add support for setmode and settarget messages.
Approved by:	glebius (mentor)
2007-05-22 12:23:39 +00:00
mav
519a3dd7a9 Allow node to bypass traffic while no alias address defined.
Approved by:	glebius (mentor)
2007-05-22 12:14:43 +00:00
mav
61e626a6d8 Fix build with NETGRAPH_MPPC_COMPRESSION but without NETGRAPH_MPPC_ENCRYPTION.
Approved by:	glebius (mentor)
2007-05-18 15:28:01 +00:00
dwmalone
5ad0d6d6de Help ng_fec deal with multicast addresses.
While ng_fec called the ioctl to let interfaces in the bundle know
the list of multicast addresses had changed, it never actually
updated that list on the interfaces in the bundle. Consequently,
the multicast filters could be programmed incorrectly.

if_lagg does this correctly, by maintaining a list of addresses
that it has added to interfaces in the bundle. This commit basically
takes the if_lagg code and adds it to ng_fec.

A version of this patch for RELENG_6 has fixed some problems with
IPv6 ND over ng_fec. This is probably the problem in PR 107523.

PR:		107523
Tested by:	Rob Gallagher <robert.gallagher@heanet.ie>
Obtained from:	if_lagg
MFC after:	3 weeks
2007-05-18 15:05:49 +00:00
mav
2401c2cdb8 Fix small copy/paste mistake. 2007-05-17 13:33:38 +00:00
mav
bdc8f5bc7f Style cleanup.
Approved by:	glebius (mentor)
2007-05-16 12:11:09 +00:00
mav
e2cf6367f2 A node that implements various traffic shaping and rate limiting algorithms.
Approved by:	glebius (mentor)
2007-05-15 16:09:23 +00:00
mav
f1c1aa5c90 Performance optimization of the "encryption without compression" case by
avoiding memory allocation and data copying.
Encrypting directly at the original mbuf chain.

Approved by:	glebius (mentor)
2007-05-11 14:36:02 +00:00
rwatson
47d37a80be Reduce network stack oddness: implement .pru_sockaddr and .pru_peeraddr
protocol entry points using functions named proto_getsockaddr and
proto_getpeeraddr rather than proto_setsockaddr and proto_setpeeraddr.
While it's true that sockaddrs are allocated and set, the net effect is
to retrieve (get) the socket address or peer address from a socket, not
set it, so align names to that intent.
2007-05-11 10:20:51 +00:00
mav
e650654da1 Avoid extra rc4_init() when ng_mppc_updatekey() going to do it anyway.
Approved by:	glebius (mentor)
2007-05-04 16:20:47 +00:00
mav
f6fc3acc90 Compact code a bit
Approved by:	glebius (mentor)
2007-05-04 16:12:54 +00:00
mav
9f72209bd2 Make coherency counter 12bit as it should
Approved by:	glebius (mentor)
2007-05-04 16:05:58 +00:00
mav
3db45e799a Fix small mistake (sizeof(pad2) instead of sizeof(pad1))
Approved by:	glebius (mentor)
2007-05-04 15:44:22 +00:00
mav
46dad86393 Remove unneded bzero().
SHA1Final() does not require clean buffer.

Approved by:	glebius (mentor)
2007-05-04 15:41:49 +00:00
mav
054a6022e4 Avoid false assertion on transmit and delayed ack timeout with enabled invariants.
Replace callout_pending() by callout_active() to remove race window.

Reviewed by:	archie
Approved by:	glebius (mentor)
2007-04-24 10:50:25 +00:00
mav
008892b71a Global xmit stats calculation fix.
Approved by:	glebius (mentor)
2007-04-23 15:25:14 +00:00
mav
ba2ac38f34 Added m_tag_copy_chain() call to copy original outgoing packet tags to all of
it's fragments.

Reviewed by:	archie
Approved by:	glebius (mentor)
2007-04-20 08:44:40 +00:00
mav
4eafee4615 Optimized packet distribution plan for the equal links case. Do not
split packet on fragments smaller then MP_MIN_FRAG_LEN to reduce total
overhead.

Reviewed by:	archie
Approved by:	glebius (mentor)
2007-04-20 08:42:08 +00:00
mav
08eaeb92b2 - Changed sequence numbers processing to avoid incorrect timeout waiting
when one of links is inactive and have stale sequence number. To avoid
this sequence numbers of all links are getting updated on every
successful packet reassembling.
- ng_ppp_bump_mseq function created to simplify code.
- ng_ppp_frag_drop function separated from ng_ppp_frag_process to
simplify code.

Reviewed by:	archie
Approved by:	glebius (mentor)
2007-04-20 08:38:18 +00:00
mav
8063ace5a8 - Fixed mistakes in latency and xmitBytes calculation math
which lead to ineffective multilink packet distribution plans.
- Changed bytesInQueue calculation math to have more precise information
about links utilization.
- Taken rough account of the link overhead. Better way to do it could be to
get exact overhead from user-level, but I have not done it to keep
binary compatibility.

Reviewed by:	archie
Approved by:	glebius (mentor)
2007-04-20 08:22:57 +00:00
wkoszek
1463edcf11 We don't need spinning locks here. Change them to the adaptive mutexes. This
change should bring no performance decrease, as it did not in my tests.

Reviewed by:	julian, glebius
Approved by:	cognet (mentor)
2007-03-31 15:43:06 +00:00
wkoszek
44897a4bf0 Instead of direct manipulation on queue and worklist mutexes, bring macros
for doing this job. This change will make it easy to migrate from using
spinning locks to adaptive ones.

Reviewed by:	glebius, julian
Approved by:	cognet (mentor)
2007-03-30 14:34:34 +00:00
emax
66f5e5f292 Try to silence Coverity by adding (void) in front of function call.
Also add a comment, explaining why return value is not being checked.

Requested by:	netchild
MFC after:	1 week
2007-03-28 21:25:56 +00:00
glebius
e0b48c67ff Bump maximum number of interface hooks to the maximum possible value.
This will increase the memory consumption for more than 1 Mb, but this
is required for operation on multiinterface access concentrators running
mpd.

Requested by:	Alexander Motin
2007-03-28 13:59:13 +00:00
maxim
f01ad312df o Update a comment: sonewconn() lives in uipc_socket.c now. 2007-03-26 18:17:57 +00:00
bms
4ffc004901 Implement reference counting for ifmultiaddr, in_multi, and in6_multi
structures. Detect when ifnet instances are detached from the network
stack and perform appropriate cleanup to prevent memory leaks.

This has been implemented in such a way as to be backwards ABI compatible.
Kernel consumers are changed to use if_delmulti_ifma(); in_delmulti()
is unable to detect interface removal by design, as it performs searches
on structures which are removed with the interface.

With this architectural change, the panics FreeBSD users have experienced
with carp and pfsync should be resolved.

Obtained from:	p4 branch bms_netdev
Reviewed by:	andre
Sponsored by:	Garance A Drosehn
Idea from:	NetBSD
MFC after:	1 month
2007-03-20 00:36:10 +00:00
rwatson
c7032e862d Prefer more traditional spellings of some words in comments. 2007-03-18 16:49:50 +00:00
julian
a9c72d2621 oops committed the wrong patch.
try this one..
2007-03-10 01:02:40 +00:00
julian
3cf52ff305 ng_apply_item should be void. It is called from the interrupt source or
from whoever has dequeued the item from the queue. Generally they have
no interest in the result, and even if it is called by the queuer, it
should still pretend that it was queued. The queuer should be assuming
that the call was queued and giving them the false confidence that they
are getting status leads to hard to find bugs.

Make it a void and remove all the code that tried to return status through it.
2007-03-09 21:04:50 +00:00
ru
42f2b268fd ng_send_fn() can return with an error, the function of interest
will never be called and OACTIVE will never be reset.  Fix this.

Submitted by:	Vsevolod Lobko
MFC after:	3 days
2007-03-08 21:10:53 +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
piso
6a2ffa86e5 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@
2007-02-23 12:19:07 +00:00
bms
153d14aa8a In the output path, mask off M_BCAST|M_MCAST so as to prevent incorrect
addressing if a packet is later re-encapsulated and sent to a
non-broadcast, non-multicast destination after being received on the
ng_ksocket input hook.

PR:		106999
Submitted by:	Kevin Lahey
MFC after:	4 weeks
2007-02-09 12:35:29 +00:00
glebius
fd07387e04 Quoting Alexander:
Formulas described in RFC require high precision of floating point.
  Formulas of integer math implemented in ng_pptpgre give mistake in range
  of +0-7ms on RTT and +0-3ms on deviation. This leads to significant
  underestimation of real packet RTT.

  I have made a very simple patch to reduce mistake to +4-3ms on RTT and
  +2-1ms on deviation. Mistake in RTT is not good, but gets covered by
  deviation. To cover worst possible negative mistake in deviation I have
  added 2ms to it. Also this 2 ms cover the case when measured deviation
  is so small (about zero) that it can interfere with process scheduling
  delays or weather on Mars.

  My tests show decreasing of packet losses on 20ms RTT link from 2.5% to
  0.3% while speed increased un 1/3.

Reviewed by:	archie
2007-02-02 09:45:23 +00:00
glebius
0688eeab06 - Create ng_ppp_bypass() function, that prepares a packet
with bypass header, to send it out to userland.
- Use ng_ppp_bypass() in ng_ppp_proto_recv().
- Use ng_ppp_bypass() in ng_ppp_comp_recv() and in
  ng_ppp_crypt_recv() if compression or encryption is
  disabled, respectively.
- Any LCP packet goes directly to ng_ppp_bypass(), instead
  of passing through PPP stack.
- Any non-LCP packet on disabled link is discarded. This
  is behavior defined in RFC.

Submitted by:	Alexander Motin <mav alkar.net>
2007-01-25 21:16:50 +00:00
mjacob
6f6da4e54a A less draconian fix to the build. 2007-01-18 19:41:39 +00:00
obrien
d7c0868be3 Temporarily comment out the KASSERT that broke the kernel build. 2007-01-18 18:53:13 +00:00
glebius
632643de7f Revise the ng_ppp(4) node, so that code flow is more clear. All non-link
hooks get their per hook rcvdata methods, and all functions are organized
corresponding to protocol stack model.

Submitted by:	Alexander Motin <mav alkar.net>
Reviewed by:	archie, julian
2007-01-18 13:55:21 +00:00
glebius
06a509ffdc Whitespace cleanup.
Checked with:	cvs diff -b
2007-01-15 05:55:56 +00:00
glebius
3ff4e1770d Update ip and tcp pointers after m_pullup().
Submitted by:	Alexander Motin <mav alkar.net>
2007-01-15 05:01:31 +00:00
glebius
523fae4cf8 Fix accounting of incoming octets.
Submitted by:	Alexander Motin <mav alkar.net>
2007-01-10 15:04:10 +00:00
jhb
67155fb0b2 Various bpf(4) related fixes to catch places up to the new bpf(4)
semantics.
- Stop testing bpf pointers for NULL.  In some cases use
  bpf_peers_present() and then call the function directly inside the
  conditional block instead of the macro.
- For places where the entire conditional block is the macro, remove the
  test and make the macro unconditional.
- Use BPF_MTAP() in if_pfsync on FreeBSD instead of an expanded version of
  the old semantics.

Reviewed by:	csjp (older version)
2006-12-29 13:59:50 +00:00
glebius
978ae6c93c A node that implements Predictor-1 compression for PPP.
Submitted by:	Alexander Motin <mav alkar.net>
2006-12-29 09:54:32 +00:00
glebius
b4f4c288b8 A node that implements the Deflate sub-protocols of the Compression Control
Protocol (CCP).

Submitted by:	Alexander Motin <mav alkar.net>
2006-12-28 15:44:05 +00:00
glebius
e0c41002ef Before this commit, if the compression is enabled the, ng_ppp(4)
node would send every outgoing frame to the "compress" hook.
Packets received on the "compress" hook were expected to be
compressed and PROT_COMPD tag was put on them unconditionally.

After this commit an alternative compression mode can be set.
In this mode the node doesn't put the PROT_COMPD, the compressor
should put it itself. This is important for such kind of
compressors, that can submit uncompressed frames.

Before this commit, if the decompression is enabled, the ng_ppp(4)
node would send and incoming frame to the "decompress" hook
only if it has the PROT_COMPD proto tag on it.

After this commit an alternative decompression mode can be set.
In this mode the node sends all the incoming packets to the
decompression hook. This is important for such kind of compressors
that need uncompressed packets too, to keep their library in sync.

These new features will be used in new version of mpd4, and in new
compressor nodes.

Submitted by:	Alexander Motin <mav alkar.net>
2006-12-28 13:21:54 +00:00
glebius
692ad8aa69 Return value PKT_ALIAS_FOUND_HEADER_FRAGMENT isn't an error case. The
packet shouldn't be dropped.

Submitted by:	Alexander Motin <mav alkar.net>
2006-12-21 10:26:01 +00:00
glebius
a6aa94d334 Correctly calculate length of IP header.
Submitted by:	Eugene Hartmann <eugene tpsb.com.ru>
2006-12-12 12:35:06 +00:00
piso
e2023fe5e9 Remove m_megapullup from ng_nat and put it under libalias.
Approved by: gleb
2006-12-01 16:27:11 +00:00
rwatson
10d0d9cf47 Sweep kernel replacing suser(9) calls with priv(9) calls, assigning
specific privilege names to a broad range of privileges.  These may
require some future tweaking.

Sponsored by:           nCircle Network Security, Inc.
Obtained from:          TrustedBSD Project
Discussed on:           arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
                        Alex Lyashkov <umka at sevcity dot net>,
                        Skip Ford <skip dot ford at verizon dot net>,
                        Antoine Brodin <antoine dot brodin at laposte dot net>
2006-11-06 13:42:10 +00:00
andre
d1cc5b22d7 Rename m_getm() to m_getm2() and rewrite it to allocate up to page sized
mbuf clusters.  Add a flags parameter to accept M_PKTHDR and M_EOR mbuf
chain flags.  Provide compatibility macro for m_getm() calling m_getm2()
with M_PKTHDR set.

Rewrite m_uiotombuf() to use m_getm2() for mbuf allocation and do the
uiomove() in a tight loop over the mbuf chain.  Add a flags parameter to
accept mbuf flags to be passed to m_getm2().  Adjust all callers for the
extra parameter.

Sponsored by:	TCP/IP Optimization Fundraise 2005
MFC after:	3 month
2006-11-02 17:37:22 +00:00
glebius
4e5d9f4895 Check pointer before dereferencing.
Reported by:	Coverity
CID:		1556
2006-10-18 07:47:07 +00:00
glebius
898bb51431 Some clenaup of ngs_rcvmsg():
- Inline ship_msg() into ngs_rcvmsg().
  - Plug memory leak in case if no control socket present.
  - Remove malloc() and allocate the sockaddr on stack.
  - style(9).
2006-10-17 16:52:09 +00:00
glebius
0ce8903dc6 Some cleanup and small changes:
- Use malloc() and free() instead of MALLOC() and FREE() macros.
  - Do not check malloc results if M_WAITOK was used.
  - Remove linked list of all netgraph sockets. It isn't needed.
  - Use ng_findhook() instead of searching the list ourselves.
  - Use NG_WAITOK in syscalls.
  - Remove unneeded includes.
  - style(9)
2006-10-17 12:21:48 +00:00
glebius
3dd1e0f2c5 Make the sg_len and sg_family members of the sockaddr_ng the same type
as the corresponding values in sockaddr are.
2006-10-17 11:03:55 +00:00
glebius
39416e7f98 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
glebius
422e6f6f8b - ng_address_ID() has already freed the message, don't do double free.
- Get error from ng_address_ID().

Reported by:	Coverity via pjd
2006-10-17 10:59:39 +00:00
glebius
da25bed089 Fix result of some mechanical change that I did some time ago, when
writing this node.
2006-10-13 09:11:12 +00:00
glebius
e2fb442f9b Recognize 802.1q frames in Ethernet input and process them.
PR:		kern/101162
Submitted by:	CoolDavid (Tseng Guo-Fu) <cooldavid cdpa.nsysu.edu.tw>
2006-10-11 15:27:13 +00:00
glebius
119a1b5374 Do not leak hooks in ng_bypass().
Submitted by:	Alexander Motin <mav alkar.net>
2006-10-11 14:33:08 +00:00
glebius
da7c9c2fef Make it buildable. 2006-10-11 13:28:37 +00:00
glebius
9355a9d023 Unbreak a short one.
Submitted by:	maxim
2006-10-11 12:39:21 +00:00
glebius
cb82f81bfe Break long line. 2006-10-11 12:32:53 +00:00
glebius
c93c44c80d Use hash functions with better distribution. Tested on live traffic.
Submitted by:	Alexander Motin <mav alkar.net>
2006-10-11 12:31:14 +00:00
glebius
e97262352e Use bitcount32() from sys/systm.h instead of my own. 2006-10-11 10:47:44 +00:00
netchild
50524ad5be Don't use data after free.
Found by:	Coverity Prevent
CID:		536
Submitted by:	harti (via vs)
2006-09-30 12:37:43 +00:00
andre
2d9e7e4a32 Move ethernet VLAN tags from mtags to its own mbuf packet header field
m_pkthdr.ether_vlan.  The presence of the M_VLANTAG flag on the mbuf
signifies the presence and validity of its content.

Drivers that support hardware VLAN tag stripping fill in the received
VLAN tag (containing both vlan and priority information) into the
ether_vtag mbuf packet header field:

	m->m_pkthdr.ether_vtag = vlan_id;	/* ntohs()? */
	m->m_flags |= M_VLANTAG;

to mark the packet m with the specified VLAN tag.

On output the driver should check the mbuf for the M_VLANTAG flag to
see if a VLAN tag is present and valid:

	if (m->m_flags & M_VLANTAG) {
		... = m->m_pkthdr.ether_vtag;	/* htons()? */
		... pass tag to hardware ...
	}

VLAN tags are stored in host byte order.  Byte swapping may be necessary.

(Note: This driver conversion was mechanic and did not add or remove any
byte swapping in the drivers.)

Remove zone_mtag_vlan UMA zone and MTAG_VLAN definition.  No more tag
memory allocation have to be done.

Reviewed by:	thompsa, yar
Sponsored by:	TCP/IP Optimization Fundraise 2005
2006-09-17 13:33:30 +00:00
ru
8fdde09645 Fix input byte counting. Now the sum of the ipackets/ibytes counters
of individual interfaces should match the ipackets/ibytes counter of
the aggregate (FEC) interface.

PR:		kern/82189
Submitted by:	Stikheev Andrew <sand AT zunet DOT ru>
MFC after:	3 days
2006-09-15 20:17:45 +00:00
ru
8daf570879 Make it possible to set a larger MTU by attempting to set MTUs on all
trunk ports first.  If that succeeds, and we're inside our own bounds,
so be it.

Still not ideal -- adding a port after changing an MTU doesn't change
port's MTU, but a step in the right direction.

PR:		kern/95417
Submitted by:	Vladimir Ivanov <wawa AT yandex-team DOT ru>
MFC after:	3 days

I've slightly edited a patch to make the conditional logic positive
and remove (what I think was) a redundant ng_fec_init() call.
2006-09-15 16:06:27 +00:00
ru
7accf1bc73 SIOCSIFFLAGS doesn't require an argument in kernel land; instead, flags
are supposed to be set directly in ifnet already.  This change fixes a
panic when ng_eiface node is attached to ng_fec node and the latter is
shut down (ng_fec sets flags and then calls SIOCSIFFLAGS with a NULL
argument).

MFC after:	3 days
2006-09-15 15:53:09 +00:00
emax
6fcacdf9ef s/USBDEVNAME/device_get_nameunit/g
s/USBBASEDEVICE/device_t/g
2006-09-07 23:38:09 +00:00
mjacob
82698a46fb more usb fallout changes 2006-09-07 06:18:34 +00:00
emax
06408c929f - Catch up with ongoing rwatson's socket work;
- Fix a couple of LORs and panics;

- Temporarily remove the code that tries to cleanup sockets that stuck
  on accepting queues (both complete and incomplete). I'm taking an ostrich
  approach here until I find a better way to deal with sockets that were
  disconnected before accepting (i.e. while socket was on complete or
  incomplete accept queue).
2006-08-25 17:53:13 +00:00
ru
e574350b77 Fix another fallout from the IF_LLADDR() type change.
Spotted by:	mwlucas
2006-08-24 19:50:00 +00:00
emax
2b65f3157a Define mtu as u_int16_t not as int. This should fix problem with rfcomm
on sparc64.

Reported by:	Andrew Belashov <bel at orel dot ru>
Tested by:	Andrew Belashov <bel at orel dot ru>
MFC after:	3 days
2006-08-24 16:51:02 +00:00
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
0e44cd0741 Turn off by default "feature" that overwrites MAC address
on output frames.

Many people were confused with not working CARP, ng_bridge(4)
and other subsystems, because ng_ether(4) overwritten source
MAC address.
2006-08-04 13:36:27 +00:00
thompsa
4a3cc37070 Remove the dependency of bridgestp.h on if_bridgevar.h by moving a couple of
private structures to if_bridge.c.
2006-07-27 21:01:48 +00:00
avatar
352abf45ed Fixing compilation bustage: net/if_bridgevar.h depends on net/bridgestp.h. 2006-07-27 06:15:37 +00:00
rwatson
40868fda8a soreceive_generic(), and sopoll_generic(). Add new functions sosend(),
soreceive(), and sopoll(), which are wrappers for pru_sosend,
pru_soreceive, and pru_sopoll, and are now used univerally by socket
consumers rather than either directly invoking the old so*() functions
or directly invoking the protocol switch method (about an even split
prior to this commit).

This completes an architectural change that was begun in 1996 to permit
protocols to provide substitute implementations, as now used by UDP.
Consumers now uniformly invoke sosend(), soreceive(), and sopoll() to
perform these operations on sockets -- in particular, distributed file
systems and socket system calls.

Architectural head nod:	sam, gnn, wollman
2006-07-24 15:20:08 +00:00
rwatson
720efebbba Change semantics of socket close and detach. Add a new protocol switch
function, pru_close, to notify protocols that the file descriptor or
other consumer of a socket is closing the socket.  pru_abort is now a
notification of close also, and no longer detaches.  pru_detach is no
longer used to notify of close, and will be called during socket
tear-down by sofree() when all references to a socket evaporate after
an earlier call to abort or close the socket.  This means detach is now
an unconditional teardown of a socket, whereas previously sockets could
persist after detach of the protocol retained a reference.

This faciliates sharing mutexes between layers of the network stack as
the mutex is required during the checking and removal of references at
the head of sofree().  With this change, pru_detach can now assume that
the mutex will no longer be required by the socket layer after
completion, whereas before this was not necessarily true.

Reviewed by:	gnn
2006-07-21 17:11:15 +00:00
emax
261c00b828 Replace inb() and outb() with bus_space_read_1() and bus_space_write_1()
Submitted by:	marius
MFC after:	1 week
2006-07-05 17:18:47 +00:00
glebius
bb71010baa A netgraph node that can do different manipulations with
mbuf_tags(9) on packets.

Submitted by:		Vadim Goncharov <vadimnuclight tpu.ru>
mdoc(7) reviewed by:	ru
2006-06-27 12:45:28 +00:00
jhb
9af5dd68e4 Use kern_kldload() and kern_kldunload() to load and unload modules when
we intend for the user to be able to unload them later via kldunload(2)
instead of calling linker_load_module() and then directly adjusting the
ref count on the linker file structure.  This makes the resulting
consumer code simpler and cleaner and better hides the linker internals
making it possible to sanely lock the linker.
2006-06-13 21:36:23 +00:00
glebius
e091fdc169 When counting nodes second time, use the same criteria as for
the first time.

PR:		kern/98529
Submitted by:	Michael Heyman
2006-06-07 12:42:15 +00:00
glebius
62e2a7bdfd Use NET_CALLOUT_MPSAFE for netgraph callout initializer. 2006-06-06 08:05:27 +00:00
sam
c35d17efe0 add missed calls to bpf_peers_present 2006-06-02 23:14:40 +00:00
jhb
f018362c4a Conditionally acquire Giant in netgraph callouts to honor mpsafenet=0.
Reported by:	sekes <gexlie at gmail dot com>
MFC after:	1 week
2006-06-02 20:35:39 +00:00
dds
e249370b75 Replace the array initialization using the gcc-specific format
[constant] value
with the C99 format
[constant] = value
2006-06-02 09:08:51 +00:00
emax
2ec6a6b5e7 Add new SIOC_HCI_RAW_NODE_LIST_NAMES ioctl. User-space applications can
use this ioctl to obtain the list of HCI nodes. User-space application
is expected to preallocate 'ng_btsocket_hci_raw_node_list_names' structure
and set limit in 'num_nodes' field. The 'nodes' field should be allocated
as well and it should have space for at least 'num_nodes' elements.

The SIOC_HCI_RAW_NODE_LIST_NAMES should be issued on bound raw HCI socket.
It does not really really matter what HCI name the socket is bound to, as
long as it is not empty.

MFC after:	1 week
2006-05-17 00:13:07 +00:00
glebius
8102032dd4 Remove unneeded check.
Coverity ID:	445
2006-05-16 11:49:26 +00:00
glebius
9b4bb59e8c Do not leak kernel memory in case if userland has been compiled
against older NG_VERSION.

Coverity ID:	1131
2006-05-16 09:32:58 +00:00
maxim
3ccc5435bf o Replace disappeared URLs to Cisco docs by new ones, style.
No functional changes.
2006-04-25 20:01:50 +00:00
maxim
a579d0e62d o Set to zero engine_type, engine_id and pad (cisco calls it
sampling_interval) fields in netflow v5 header.  We do not use
them but some netflow tools show garbage.

PR:		kern/96296
Submitted by:	David Duchscher
Approved by:	glebius
MFC after:	1 week
2006-04-25 19:56:53 +00:00
rwatson
d2dc014de0 Correct assertion in ng_detach().
Submitted by:	tegge
MFC after:	3 months
2006-04-06 02:54:42 +00:00
rwatson
5479e5d692 Chance protocol switch method pru_detach() so that it returns void
rather than an error.  Detaches do not "fail", they other occur or
the protocol flags SS_PROTOREF to take ownership of the socket.

soclose() no longer looks at so_pcb to see if it's NULL, relying
entirely on the protocol to decide whether it's time to free the
socket or not using SS_PROTOREF.  so_pcb is now entirely owned and
managed by the protocol code.  Likewise, no longer test so_pcb in
other socket functions, such as soreceive(), which have no business
digging into protocol internals.

Protocol detach routines no longer try to free the socket on detach,
this is performed in the socket code if the protocol permits it.

In rts_detach(), no longer test for rp != NULL in detach, and
likewise in other protocols that don't permit a NULL so_pcb, reduce
the incidence of testing for it during detach.

netinet and netinet6 are not fully updated to this change, which
will be in an upcoming commit.  In their current state they may leak
memory or panic.

MFC after:	3 months
2006-04-01 15:42:02 +00:00
rwatson
8622e776f9 Change protocol switch pru_abort() API so that it returns void rather
than an int, as an error here is not meaningful.  Modify soabort() to
unconditionally free the socket on the return of pru_abort(), and
modify most protocols to no longer conditionally free the socket,
since the caller will do this.

This commit likely leaves parts of netinet and netinet6 in a situation
where they may panic or leak memory, as they have not are not fully
updated by this commit.  This will be corrected shortly in followup
commits to these components.

MFC after:      3 months
2006-04-01 15:15:05 +00:00
glebius
2a445560a5 Free private data when deleting hook.
PR:		kern/93952
Submitted by:	Antoine Brodin <antoine.brodin laposte.net>
2006-03-15 15:41:36 +00:00
ru
b6c14cf89a Clear csum_flags after reading data from socket buffer. Otherwise,
if ksocket is connected to an interface-type node somewhere later
in the graph (e.g., ng_eiface or ng_iface), the csum_data may be
applied to a wrong packet (if we encapsulate Ethernet or IP).

MFC after:	3 days
2006-02-21 13:04:39 +00:00
glebius
dee2543565 Remove unused now field. 2006-02-17 09:42:49 +00:00
ru
9b12fa4fac Unbreak this. 2006-02-14 15:22:24 +00:00
ru
ed21a0cb06 Don't count output bytes twice (the byte accouting is done
in if.c).  Count output errors.

MFC after:	3 days
2006-02-11 20:25:00 +00:00
glebius
1985b120c4 - Increase maximum number of interfaces to 2048.
- Regroup softc so that frequently used elements are
  grouped in the beginning, while the interfaces
  array is at the end.
2006-02-09 11:42:17 +00:00
ru
db2b824041 Two fixes:
- Run send queue down to completion, not just one packet.
  It has been observed to cause a stall queue otherwise.

- Prevent queueing multiple function calls to a node.

MFC after:	3 days
2006-02-06 14:30:21 +00:00
rik
87f61db261 Fix module from panic.
Pointy hat:	brooks
MFC after:	3 days
2006-01-29 22:06:51 +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
b29d8babd1 Simplify ng_source_send() removing temporary queue and merging two
cycles into one.
2006-01-23 10:28:04 +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
ru
2eca910c1e Fix two accesses to uninitialized variables that a revision 1.27
has introduced.

Found with:	Coverity Prevent(tm)
2006-01-18 16:09:00 +00:00
glebius
0b544658fc Initialize variable.
Found with:	Coverity Prevent(tm)
2006-01-14 21:49:31 +00:00
glebius
60e9860657 Make code simplier fixing memory leak.
Found with:	Coverity Prevent(tm)
2006-01-14 21:28:30 +00:00
glebius
906a70beb3 Remove dead code.
Found with:	Coverity Prevent(tm)
2006-01-14 14:17:27 +00:00
glebius
50771bd3de Correct off-by-one errors.
Found with:	Coverity Prevent(tm)
2006-01-14 12:26:32 +00:00
glebius
5ef919b3b4 Fix two memory leakages.
Found with:	Coverity Prevent(tm)
2006-01-14 12:16:39 +00:00
glebius
fa0bd53669 When sending export datagram from interrupt thread, use NG_QUEUE
in flags. When sending export datagram from expiry thread, then
use default zero flags. This removes unpleasant contention of the
interrupt thread on mutexes (usually ng_ksocket's socket buffer
mutex).
2006-01-12 22:48:12 +00:00
glebius
217f2bb6eb Provide additional macros for sending netgraph items, which allow
to use non-default flags for netgraph functions. Implement current
macros via new ones.
2006-01-12 22:44:04 +00:00
glebius
cac42b3b2e - Print also node ID in ktr(9) messages. [1]
- Use fixed length for function name, making ktrdump(8) output
  easier to read.

Suggested by:	julian [1]
2006-01-12 22:41:32 +00:00
glebius
91d3ed7332 Do not force queueing on peer hooks. This was important only for
5.0-CURRENT. And it looks like this didn't work before Julian's
revamp of netgraph queue code.

Reviewed by:	julian
2006-01-12 21:09:12 +00:00
glebius
7440f79a64 Remove old debugging leftover.
Reviewed by:	julian
2006-01-12 21:03:09 +00:00
glebius
7d18f42630 Mark appropriate commands with NGM_READONLY and NGM_HASREPLY and
bump type cookie.
2006-01-12 19:16:08 +00:00
glebius
a8f06e9570 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
glebius
fcfa85f990 Fix wording in last commit.
Submitted by:	julian
2006-01-12 10:15:51 +00:00
glebius
bb26b44758 Add ktr(9) hooks to easier tracing of the netgraph item flow through
netgraph.
2006-01-11 15:29:48 +00:00
glebius
f867a5733b In ng_netflow_disconnect() check whether we are working with "iface"
or with "out" hook, and clear the right pointer.

Reported by:	Vitaliy Ovsyannikov <V.Ovsyannikov kr.ru>
2005-12-28 12:56:59 +00:00
glebius
e6fe511448 Implement an upper limit for packets per second sent by node. 2005-12-23 19:14:38 +00:00
ru
45c0ed5e8a Fix memory leak.
PR:		kern/90113
Submitted by:	Antoine Brodin
2005-12-09 07:09:44 +00:00
jkim
a20bda668b Fix build without BPF_JITTER option. 2005-12-07 21:41:45 +00:00
jkim
99ef252d15 Add BPF Just-In-Time compiler support for ng_bpf(4).
The sysctl is changed from net.bpf.jitter.enable to net.bpf_jitter.enable
and this controls both bpf(4) and ng_bpf(4) now.
2005-12-07 21:30:47 +00:00
ru
798500dfd8 Fix -Wundef from compiling the amd64 LINT. 2005-12-04 10:06:06 +00:00
ru
63d1fc7623 Use __LP64__ to check for the 64-bit pointer type, and fix -Wundef. 2005-12-04 00:25:03 +00:00
glebius
a2a648724d - Update the flow sequence before converting count to
network byte order.
- Update the flow sequence in one atomic op instead of two.

Reported by:	Denis Shaposhnikov <dsh vlink.ru>
Reported by:	Daniil Kharoun <kdl chelcom.ru>
PR:		kern/89417
2005-11-27 02:43:08 +00:00
glebius
2466e9c038 Some whitespace and style cleanup. 2005-11-15 10:54:20 +00:00
ru
f70f525b49 - Store pointer to the link-level address right in "struct ifnet"
rather than in ifindex_table[]; all (except one) accesses are
  through ifp anyway.  IF_LLADDR() works faster, and all (except
  one) ifaddr_byindex() users were converted to use ifp->if_addr.

- Stop storing a (pointer to) Ethernet address in "struct arpcom",
  and drop the IFP2ENADDR() macro; all users have been converted
  to use IF_LLADDR() instead.
2005-11-11 16:04:59 +00:00
ru
862d9807dd Make IFP2NG() usable as an lvalue. 2005-11-09 13:34:43 +00:00
ru
dcace5669d Use sparse initializers for "struct domain" and "struct protosw",
so they are easier to follow for the human being.
2005-11-09 13:29:16 +00:00
ru
9349a52f41 Simplify setting the link-level address. 2005-11-08 09:03:06 +00:00
ru
1aceee70b0 Use if_setlladdr() to reprogram the link-level addresses; it causes
a synchronous reprogramming of hardware MAC filters if the physical
interface are up and running.  Previously, MAC filters would be
reconfigured only when the fec interface was brought up.
2005-11-04 16:29:51 +00:00
ru
8a9d6ba903 Bring some level of stability to this driver:
- Disallow bundle reconfiguration when virtual
  interface is running; otherwise, removing a
  port from a running configuration will cause
  a panic in the start() method on the next packet
  on an assumption that a bundle has an even
  number of ports (2 or 4).

- Disallow bringing of virtual interface to a
  running state when a bundle size is 0; otherwise,
  adding and then removing the port will similarly
  cause a panic.

- Add missing initialization of fec_ifstat when
  adding a new port and fix media status reporting
  when virtual interface isn't yet up (check for
  fec_status of 1 rather than != 0).
2005-11-04 15:42:01 +00:00
ru
52caee1982 - Fix another fallout from the if_alloc() conversion:
previously, ifp->if_type was set to IFT_ETHER by
  ether_ifattach(), now it's done by if_alloc() so
  an assignment of if_type to IFT_PROPVIRTUAL after
  if_alloc() but before ether_ifattach() broke it.
  This makes arp(8) and friends happy about the fec
  interfaces, and will allow us to use if_setlladdr()
  on the fec interface.

- Set/reset IFF_DRV_RUNNING/IFF_DRV_OACTIVE in init()
  and stop() methods rather than in ioctl(), like the
  rest of the drivers do.  This fixes a bug when an
  "ifconfig fec0 ipv4_address" would not have made
  the interface running, didn't launch the ticker
  function to track media status of bundled ports,
  etc.
2005-11-04 13:50:38 +00:00
ru
5a3b8c2f8a Restore part of the code dropped in rev. 1.25 that makes sure ether_demux()
will receive an mbuf chain with Ethernet header in the data portion of the
first mbuf.
2005-11-03 07:46:04 +00:00
glebius
62e84272e8 Fix several races between socket closure and node/hook
destruction:
  - Backout 1.62, since it doesn't fix all possible
    problems.
  - Upon node creation, put an additional reference on node.
  - Add a mutex and refcounter to struct ngsock. Netgraph node,
    control socket and data socket all count as references.
  - Introduce ng_socket_free_priv() which removes one reference
    from ngsock, and frees it when all references has gone.
  - No direct pointers between pcbs and node, all pointing
    is done via struct ngsock and protected with mutex.
2005-11-02 15:34:42 +00:00
glebius
ee3af26d48 Fix two races which happen when netgraph is restructuring:
- Introduce ng_topo_mtx, a mutex to protect topology changes.
  - In ng_destroy_node() protect with ng_topo_mtx the process
    of checking and pointing at ng_deadnode. [1]
  - In ng_con_part2() check that our peer is not a ng_deadnode,
    and protect the check with ng_topo_mtx.
  - Add KASSERTs to ng_acquire_read/write, to make more
    understandible synopsis in case if called on ng_deadnode.

Reported by:	Roselyn Lee [1]
2005-11-02 15:23:47 +00:00
glebius
e33b2b4ba9 Rework the ng_item queueing on nodes:
- Introduce a new flags NGQF_QREADER and NGQF_QWRITER,
    which tell how the item should be actually applied,
    overriding NGQF_READER/NGQF_WRITER flags.
  - Do not differ between pending reader or writer. Use only
    one flag that is raised, when there are pending items.
  - Schedule netgraph ISR in ng_queue_rw(), so that callers
    do not need to do this job.
  - Fix several comments.

Submitted by:	julian
2005-11-02 14:27:24 +00:00
rwatson
be4f357149 Normalize a significant number of kernel malloc type names:
- Prefer '_' to ' ', as it results in more easily parsed results in
  memory monitoring tools such as vmstat.

- Remove punctuation that is incompatible with using memory type names
  as file names, such as '/' characters.

- Disambiguate some collisions by adding subsystem prefixes to some
  memory types.

- Generally prefer lower case to upper case.

- If the same type is defined in multiple architecture directories,
  attempt to use the same name in additional cases.

Not all instances were caught in this change, so more work is required to
finish this conversion.  Similar changes are required for UMA zone names.
2005-10-31 15:41:29 +00:00
rwatson
49831ed8da Push the assignment of a new or updated so_qlimit from solisten()
following the protocol pru_listen() call to solisten_proto(), so
that it occurs under the socket lock acquisition that also sets
SO_ACCEPTCONN.  This requires passing the new backlog parameter
to the protocol, which also allows the protocol to be aware of
changes in queue limit should it wish to do something about the
new queue limit.  This continues a move towards the socket layer
acting as a library for the protocol.

Bump __FreeBSD_version due to a change in the in-kernel protocol
interface.  This change has been tested with IPv4 and UNIX domain
sockets, but not other protocols.
2005-10-30 19:44:40 +00:00
ru
bdd1a33a30 Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
emax
07a4207441 Do not manually allocate/free device's softc structure.
Pointed by:	jhb
Reviewed by:	imp, jhb
2005-10-26 23:13:51 +00:00
jhb
10b2717ca7 - Use swi_remove() to teardown swi handlers rather than
intr_event_remove_handler().
- Remove tty: prefix from a couple of swi handler names.
2005-10-26 15:52:16 +00:00
ru
172c6f14f4 Catch up with new interrupt handling code. 2005-10-26 06:17:27 +00:00
ru
4b978fe863 Make the cookie constant name canonical. 2005-10-25 20:56:12 +00:00
phk
9f01990d4c Use new (inline) functions for calls into driver. 2005-10-16 20:44:18 +00:00
yar
924e74a759 In preparation for making the modules actually use opt_*.h files
provided in the kernel build directory, fix modules that were
failing to build this way due to not quite correct kernel option
usage.  In particular:

ng_mppc.c uses two complementary options, both of which are listed
in sys/conf/files.  Ideally, there should be a separate option for
including ng_mppc.c in kernel build, but now only
NETGRAPH_MPPC_ENCRYPTION is usable anyway, the other one requires
proprietary files.

nwfs and smbfs were trying to ensure they were built with proper
network components, but the check was rather questionable.

Discussed with:	ru
2005-10-14 23:17:45 +00:00
thompsa
117e7120fa Further clean up the bridge hooks in if_ethersubr.c and ng_ether.c
- move the function pointer definitions to if_bridgevar.h
- move most of the logic to the new BRIDGE_INPUT and BRIDGE_OUTPUT macros
- remove unneeded functions from if_bridgevar.h and sort a little.
2005-10-14 02:38:47 +00:00
glebius
451af68b21 - When flushing node input queue, check whether item has a callback. If
it does, then call it suppling ENOENT as error value.
- Add assert, that helped to catch the above error.
2005-10-13 11:55:50 +00:00
thompsa
e085cf5c30 Clean up the if_bridge hooks a bit in if_ethersubr.c and ng_ether.c, move
the broadcast/multicast test to bridge_input().

Requested by:	glebius
2005-10-13 09:43:30 +00:00
glebius
4c9a5f1ba4 After rev. 1.103 the oitem and ierror are no longer needed, remove them. 2005-10-12 10:18:44 +00:00