Commit Graph

96 Commits

Author SHA1 Message Date
rwatson
b92d9ddfb4 If IF_HANDOFF() or netisr_queue() fail, they will free the mbuf. When
this happens, set (m) to NULL or we'll try to free it a second time on
return.

Submitted by:	Pavel Gulchouck <gul@gul.kiev.ua>
2004-04-15 19:11:34 +00:00
brooks
ef614cbb12 Don't leak softc's when destroying interfaces.
Init the softc list when loaded.

Noticed by:	Maurycy Pawlowski-Wieronski <maurycy at fouk dot org>
2004-01-21 18:05:38 +00:00
andre
de48630dfb Introduce ip_fastforward and remove ip_flow.
Short description of ip_fastforward:

 o adds full direct process-to-completion IPv4 forwarding code
 o handles ip fragmentation incl. hw support (ip_flow did not)
 o sends icmp needfrag to source if DF is set (ip_flow did not)
 o supports ipfw and ipfilter (ip_flow did not)
 o supports divert, ipfw fwd and ipfilter nat (ip_flow did not)
 o returns anything it can't handle back to normal ip_input

Enable with sysctl -w net.inet.ip.fastforwarding=1

Reviewed by:	sam (mentor)
2003-11-14 21:02:22 +00:00
sam
7f3b205cb8 o add a flags parameter to netisr_register that is used to specify
whether or not the isr needs to hold Giant when running; Giant-less
  operation is also controlled by the setting of debug_mpsafenet
o mark all netisr's except NETISR_IP as needing Giant
o add a GIANT_REQUIRED assertion to the top of netisr's that need Giant
o pickup Giant (when debug_mpsafenet is 1) inside ip_input before
  calling up with a packet
o change netisr handling so swi_net runs w/o Giant; instead we grab
  Giant before invoking handlers based on whether the handler needs Giant
o change netisr handling so that netisr's that are marked MPSAFE may
  have multiple instances active at a time
o add netisr statistics for packets dropped because the isr is inactive

Supported by:	FreeBSD Foundation
2003-11-08 22:28:40 +00:00
brooks
f1e94c6f29 Replace the if_name and if_unit members of struct ifnet with new members
if_xname, if_dname, and if_dunit. if_xname is the name of the interface
and if_dname/unit are the driver name and instance.

This change paves the way for interface renaming and enhanced pseudo
device creation and configuration symantics.

Approved By:	re (in principle)
Reviewed By:	njl, imp
Tested On:	i386, amd64, sparc64
Obtained From:	NetBSD (if_xname)
2003-10-31 18:32:15 +00:00
maxim
23ec3f074f o netisr_queue() returns 1 on success and 0 on failure,
fix a typo (?) in rev. 1.90.

PR:		kern/50163
2003-03-27 12:52:57 +00:00
jlemon
04e28d5a81 Update netisr handling; Each SWI now registers its queue, and all queue
drain routines are done by swi_net, which allows for better queue control
at some future point.  Packets may also be directly dispatched to a netisr
instead of queued, this may be of interest at some installations, but
currently defaults to off.

Reviewed by: hsu, silby, jayanth, sam
Sponsored by: DARPA, NAI Labs
2003-03-04 23:19:55 +00:00
imp
cf874b345d Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
phk
0f2a6b3b40 A minor stylistic change to make it more clear to lint-like tools. 2003-02-02 18:15:28 +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
sam
6a05792540 network interface and link layer changes:
o on input don't strip the Ethernet header from packets
o input packet handling is now done with if_input
o track changes to ether_ifattach/ether_ifdetach API
o track changes to bpf tapping
o call ether_ioctl for default handling of ioctl's
o use constants from net/ethernet.h where possible

Reviewed by:	many
Approved by:	re
2002-11-15 00:00:15 +00:00
brooks
5ce5ffe872 Convert most printf()s to if_printf()s. 2002-09-24 17:37:32 +00:00
phk
63d87674c8 Use m_length() instead of home-rolled versions. 2002-09-18 19:44:14 +00:00
brooks
a3fc793296 Fix a couple of bogus return values in previous commit.
Submitted by:	"Vladimir B. " Grebenschikov <vova@sw.ru>
Pointy hat to:	brooks
2002-08-19 19:22:41 +00:00
rwatson
12a274151f Move mac.h include to match the MAC tree location. Both locations
are about equally as alphabetized.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-15 19:02:17 +00:00
brooks
a59a8c94a5 Make ppp(4) devices clonable and unloadable. 2002-08-09 15:30:48 +00:00
rwatson
7408d5f6aa Introduce support for Mandatory Access Control and extensible
kernel access control.

Add MAC support for if_ppp.  Label packets as they are removed from
the raw PPP mbuf queue.  Preserve the mbuf MAC label across various
PPP data-munging and reconstitution operations.  Perform access
control checks on mbufs to be transmitted via the interface.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-01 21:13:47 +00:00
jhb
db9aa81e23 Change callers of mtx_init() to pass in an appropriate lock type name. In
most cases NULL is passed, but in some cases such as network driver locks
(which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used.

Tested on:	i386, alpha, sparc64
2002-04-04 21:03:38 +00:00
luigi
f7c71ab2f2 Replace (deprecated ?) FREE() macro with direct calls to free() 2002-04-04 06:03:17 +00:00
jhb
dc2e474f79 Change the suser() API to take advantage of td_ucred as well as do a
general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@
2002-04-01 21:31:13 +00:00
alfred
c9985516e4 Remove __P. 2002-03-19 21:54:18 +00:00
maxim
3b8079c727 Remove duplicated and wrong sc->sc_last_recv setting. It unbreaks
active-filter in pppd(8).

PR:			kern/12281
Submitted by:		Tim Moore <moore@bricoworks.com>
Not objected by:	peter
Reviewed by:		ru
Approved by:		ru
MFC after:		1 week
2002-03-05 10:12:04 +00:00
dillon
b3ddc72561 Get rid of the twisted MFREE() macro entirely.
Reviewed by:	dg, bmilekic
MFC after:	3 days
2002-02-05 02:00:56 +00:00
msmith
e814937e0b Staticise private interface lists. 2002-01-08 10:30:09 +00:00
julian
5596676e6c KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
kris
bd6f9cb9b6 Fix some signed/unsigned integer confusion, and add bounds checking of
arguments to some functions.

Obtained from:	NetBSD
Reviewed by:	peter
MFC after:	2 weeks
2001-09-10 11:28:07 +00:00
peter
65ffeedc02 Quieten gcc. 2001-01-31 08:27:09 +00:00
peter
6be84866ea Exterminate the use of PSEUDO_SET() with extreme prejudice. 2001-01-31 07:58:58 +00:00
jlemon
954e1d2ccd Lock down the network interface queues. The queue mutex must be obtained
before adding/removing packets from the queue.  Also, the if_obytes and
if_omcasts fields should only be manipulated under protection of the mutex.

IF_ENQUEUE, IF_PREPEND, and IF_DEQUEUE perform all necessary locking on
the queue.  An IF_LOCK macro is provided, as well as the old (mutex-less)
versions of the macros in the form _IF_ENQUEUE, _IF_QFULL, for code which
needs them, but their use is discouraged.

Two new macros are introduced: IF_DRAIN() to drain a queue, and IF_HANDOFF,
which takes care of locking/enqueue, and also statistics updating/start
if necessary.
2000-11-25 07:35:38 +00:00
peter
d15f4a9e26 Remove some #if NFOO > 0 that are always true because of config rules. 2000-01-29 16:56:24 +00:00
peter
08f3dd5401 Minor tidy up of PPP_FILTER and NBPF stuff. Don't generate bpf.h in the
module and don't #include "bpf.h".
1999-09-26 18:44:29 +00:00
phk
d612df1de6 Remove NBPF conditionality of bpf calls in most of our network drivers.
This means that we will not have to have a bpf and a non-bpf version
of our driver modules.

This does not open any security hole, because the bpf core isn't loadable

The drivers left unchanged are the "cross platform" drivers where the respective
maintainers are urged to DTRT, whatever that may be.

Add a couple of missing FreeBSD tags.
1999-09-25 12:06:01 +00:00
peter
3b842d34e8 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
brian
292c37a981 Back out redundant checks
Pointed out by: bde
1999-08-06 16:46:29 +00:00
brian
29c67703e3 Define IF_MAXMTU and IF_MINMTU and don't allow MTUs with
out-of-range values.

``comparison is always 0'' warnings are silly !

Ok'd by:	wollman, dg
Advised by:	bde
1999-08-06 13:53:03 +00:00
des
3c4a5a075d Rename bpfilter to bpf. 1999-07-06 19:23:32 +00:00
phk
16e3fbd2c1 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
peter
30f088ad7b Merge ppp changes from 2.3.3 -> 2.3.5. I have spotted some more
problems, which I'll have a go at shortly.
1998-06-20 16:28:04 +00:00
dfr
1d5f38ac22 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
dg
5f8a4130d8 Added fast IP forwarding code by Matt Thomas <matt@3am-software.com> via
NetBSD, ported to FreeBSD by Pierre Beyssac <pb@fasterix.freenix.org> and
minorly tweaked by me.
This is a standard part of FreeBSD, but must be enabled with:
"sysctl -w net.inet.ip.fastforwarding=1" ...and of course forwarding must
also be enabled. This should probably be modified to use the zone
allocator for speed and space efficiency. The current algorithm also
appears to lose if the number of active paths exceeds IPFLOW_MAX (256),
in which case it wastes lots of time trying to figure out which cache
entry to drop.
1998-05-19 14:04:36 +00:00
phk
45ced96af0 Use getmicrotime() for if_lastchange, 10msec is plenty precision. 1998-04-06 11:43:12 +00:00
phk
9b703b1455 Eradicate the variable "time" from the kernel, using various measures.
"time" wasn't a atomic variable, so splfoo() protection were needed
around any access to it, unless you just wanted the seconds part.

Most uses of time.tv_sec now uses the new variable time_second instead.

gettime() changed to getmicrotime(0.

Remove a couple of unneeded splfoo() protections, the new getmicrotime()
is atomic, (until Bruce sets a breakpoint in it).

A couple of places needed random data, so use read_random() instead
of mucking about with time which isn't random.

Add a new nfs_curusec() function.

Mark a couple of bogosities involving the now disappeard time variable.

Update ffs_update() to avoid the weird "== &time" checks, by fixing the
one remaining call that passwd &time as args.

Change profiling in ncr.c to use ticks instead of time.  Resolution is
the same.

Add new function "tvtohz()" to avoid the bogus "splfoo(), add time, call
hzto() which subtracts time" sequences.

Reviewed by:	bde
1998-03-30 09:56:58 +00:00
peter
4712969737 ppp-2.3.x ships with a bad compression number for deflate. It uses number
24 (which is magnalink!) rather than the correct 26.

Initial attempt at a compatability kludge that will negotiate for either
but will prefer to use the correct deflate compression type.
1998-03-22 06:51:57 +00:00
eivind
bcae2312af Make INET a proper option.
This will not make any of object files that LINT create change; there
might be differences with INET disabled, but hardly anything compiled
before without INET anyway.  Now the 'obvious' things will give a
proper error if compiled without inet - ipx_ip, ipfw, tcp_debug.  The
only thing that _should_ work (but can't be made to compile reasonably
easily) is sppp :-(

This commit move struct arpcom from <netinet/if_ether.h> to
<net/if_arp.h>.
1998-01-08 23:42:31 +00:00
eivind
3452c23db8 Throw options IPX, IPXIP and IPTUNNEL into opt_ipx.h.
The #ifdef IPXIP in netipx/ipx_if.h is OK (used from ipx_usrreq.c and
ifconfig.c only).

I also fixed a typo IPXTUNNEL -> IPTUNNEL (and #ifdef'ed out the code
inside, as it never could have compiled - doh.)
1997-12-15 20:31:25 +00:00
bde
e868842f11 Use ENOIOCTL instead of -1 (= ERESTART) for tty ioctls that are
not handled at a particular level.  This fixes mainly restarting
of interrupted TIOCDRAINs and TIOCSETA{W,F}s.
1997-12-06 13:25:01 +00:00
bde
1c02ba3261 Cleaned up PPP_FILTER/NBPFILTER ifdefs.
Use gettime() instead of microtime() to set if_lastchange for i/o's.
microtime() is probably too expensive.  However, setting if_lastchange
for i/o's may be wrong.
1997-11-18 13:52:41 +00:00
peter
188c833307 Convert PPP_FILTER to an option, like PPP_BSDCOMP and PPP_DEFLATE.
It requires bpf, I'll note this in LINT.
1997-10-18 01:20:28 +00:00
peter
1cd3ef3a0e Better fix for the bpf dependency that doesn't have such a large impact
on the code and pppd in userland.  PPP_FILTER is meant to be an option (or
negatable option).
1997-10-18 00:56:23 +00:00
peter
78e8c3f4e1 Back out the `PPP_FILTER => NBPFILTER' changes 1997-10-18 00:46:10 +00:00