Commit Graph

37 Commits

Author SHA1 Message Date
Kip Macy
279aa3d419 Change if_output to take a struct route as its fourth argument in order
to allow passing a cached struct llentry * down to L2

Reviewed by:	rwatson
2009-04-16 20:30:28 +00:00
Ed Maste
d54d93ac7f Move CTASSERT of ether header sizes out of the header file and into
if_ethersubr.c.  CTASSERT is implemented using a dummy typedef, which if
used in a header file may conflict with another CTASSERT in a source file
using that header.

I'll make a note of this in CTASSERT's man page.

Approved by:	imp
2008-08-27 17:10:37 +00:00
Sean Farley
99cba684fe Spelling and capitalization fixes.
MFC after:	3 days
2008-05-16 03:13:36 +00:00
Andrew Thompson
a0cf818670 Use a uint16_t type for the vlan tag rather an int. 2007-10-18 21:52:31 +00:00
Andrew Thompson
60e87ca8df The bridging output function puts the mbuf directly on the interfaces send
queue so the output network card must support the same tagging mechanism as
how the frame was input (prepended Ethernet header tag or stripped HW mflag).

Now the vlan Ethernet header is _always_ stripped in ether_input and the mbuf
flagged, only only network cards with VLAN_HWTAGGING enabled would properly
re-tag any outgoing vlan frames.

If the outgoing interface does not support hardware tagging then readd the vlan
header to the front of the frame. Move the common vlan encapsulation in to
ether_vlanencap().

Reported by:	Erik Osterholm, Jon Otterholm
MFC after:	1 week
2007-10-18 21:22:15 +00:00
Yaroslav Tykhiy
995c7fd1bf Sync ether_ioctl() with ioctl(2) and ifnet.if_ioctl
as to the type of the command argument: int -> u_long.
These types have different widths in the 64-bit world.

Add a note to UPDATING because the change breaks KBI
on 64-bit platforms.

Discussed on:	-net, -current
Reviewed by:	bms, ru
2007-05-29 12:40:45 +00:00
Robert Watson
78cfb6a09c Add prototypes for ether_aton_r() and ether_ntoa_r() missed in previous
commit.
2007-05-13 15:52:46 +00:00
Bruce M Simpson
a949987d6a Add Ethertype for 802.3ad LACP. 2007-03-07 12:51:52 +00:00
Christian S.J. Peron
8d8d78c23d style(9) nit. Prefer struct[space]name[space]{ to make grep searches more
in line with that we find in the rest of the tree.
2007-01-01 21:49:39 +00:00
Warner Losh
a20538a08a Use CTASSERT to make sure:
sizeof ether_header is 2 * ETHER_ADDR_LEN + 2 (14) bytes long
	sizeof ether_addr is ETHER_ADDR_LEN bytes long

On arm, this shows that struct ether_addr needs to be __packed.

The first condition muts be true for the bridging code to not dump core.
The second one appears to be implicitly relied upon by wi (but many
of the rids it sends down likely need __packed too to be safe) and
maybe others.  It appears to not hurt anything.
2006-12-01 07:06:35 +00:00
Christian S.J. Peron
fa5c72f583 Fix typo in comment
Pointed out by:	ru
2006-11-18 23:38:31 +00:00
Christian S.J. Peron
52f1277eea Currently, drivers that support hardware offload of VLAN tag
processing are forced to toggle this functionality when the card
is put in and out of promiscuous mode.  The main reason for this
is because the hardware strips the VLAN tag, making it impossible
for the tag information to show up in network diagnostic tools like
tcpdump(1).

This change introduces ether_vlan_mtap(), which is called if the
mbuf has M_VLANTAG set.  VLAN information is extracted from the
mbuf and inserted into a stack allocated ether vlan header which
is then inserted through the bpf machinery via bpf_mtap2(). The
original mbuf's data pointer and lengths are temporarily adjusted
to eliminate the original Ethernet header for the duration of the
tap operation. This should have no long term effects on the mbuf.

Also, define a new macro, ETHER_BPF_MTAP which should be used
by drivers which support hardware offload of VLAN tag processing.

The fixes for the relevant drivers will follow shortly.

Discussed with:		rwatson, andre, jhb (and others)
Much feedback from:	sam, ru
MFC after:	1 month [1]

[1] The version that is eventually MFCed will be somewhat
    different then this, as there has been significant work
    done to the VLAN code in HEAD.
2006-11-18 23:17:22 +00:00
Sam Leffler
fdc6354580 mark struct ether_header packed so gcc honors alignment
constratins on arm; this fixes bridging when packets are
rx'd so ip headers are 32-bit aligned

Reviewed by:	imp (and discussed elsewhere)
MFC after:	2 weeks
2006-11-18 15:50:24 +00:00
Sam Leffler
0cc8f89a4a add ETHERTYPE_PAE for EAPOL/802.1x 2004-10-05 19:28:52 +00:00
Christian Weisgerber
16b4a34316 Add helper functions to calculate the standard ethernet CRC in
little/big endian fashion, so that network drivers can just reference
the standard implementation and don't have to bring their own.

As discussed on arch@.

Obtained from:	NetBSD
2004-06-02 21:34:14 +00:00
Sam Leffler
eef6f89728 general cleanups mostly aimed at improving portability of drivers
o ETHER_* (ETHER_ALIGN, ETHER_MAX_FRAME, ETHER_CRC_LEN, etc.)
o M_HASFCS for drivers to indicate packets include FCS
o remove global declarations for ng_ether* and vlan_* since these
  represent a private contract between the if_ethersubr.c code and
  certain parts of the system that should not normally be abused
o add ether_* declarations that were elsewhere
o remove ETHER_BPF_* since they are no longer used with the parameter
  no longer passed to ether_ifattach and ether_ifdetach

Reviewed by:	many
Approved by:	re
2002-11-14 23:28:47 +00:00
Maxim Sobolev
d04c7d51be Add more ethernet types and move AppleTalk types into proper location.
Obtained from:  NetBSD (syssrc/sys/net/ethertypes.h, rev.1.13)
2002-09-06 17:02:29 +00:00
Luigi Rizzo
7d3e4c6e71 Fix a couple of incorrect m_free() vs. m_freem() usages and related issues.
Reviewed-by: brooks
2002-04-04 05:42:09 +00:00
Alfred Perlstein
929ddbbb89 Remove __P. 2002-03-19 21:54:18 +00:00
Brooks Davis
437e48e931 Don't pass an interface pointer to VLAN_INPUT{,_TAG}. Get it from the
mbuf instead.

Suggested by:	fenner
2001-12-03 17:28:27 +00:00
Brooks Davis
9d4fe4b2b0 Make vlan(4) loadable, unloadable, and clonable. As a side effect,
interfaces must now always enable VLAN support.

Reviewed by:	jlemon
MFC after:	3 weeks
2001-09-05 21:10:28 +00:00
Archie Cobbs
6e64168369 Const'ify parameters to ethers(3) routines as appropriate. 2000-07-18 22:44:52 +00:00
Archie Cobbs
21b8ebd926 Make all Ethernet drivers attach using ether_ifattach() and detach using
ether_ifdetach().

The former consolidates the operations of if_attach(), ng_ether_attach(),
and bpfattach(). The latter consolidates the corresponding detach operations.

Reviewed by:	julian, freebsd-net
2000-07-13 22:54:34 +00:00
Archie Cobbs
44ce4b7dcd Provide forward declarations for struct ifnet and struct mbuf
to avoid compiler warnings.
2000-06-29 22:30:42 +00:00
Archie Cobbs
e1e1452d61 Make the ng_ether(4) node type dynamically loadable like the rest.
This means 'options NETGRAPH' is no longer necessary in order to get
netgraph-enabled Ethernet interfaces. This supports loading/unloading
the ng_ether.ko and attaching/detaching the Ethernet interface in any
order.

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

Reviewed by:	freebsd-net@freebsd.org
2000-06-26 23:34:54 +00:00
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
Yoshinobu Inoue
76429de41a KAME related header files additions and merges.
(only those which don't affect c source files so much)

Reviewed by: cvs-committers
Obtained from: KAME project
1999-11-05 14:41:39 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Garrett Wollman
2cc2df490e Add preliminary support for IEEE 802.1Q VLAN tagging. It doesn't actually
work reliably yet (I've had panics), but it does seem to occasionally
be able to transmit and receive syntactically-correct packets.
Also fixes one of if_ethersubr.c's legion style bugs, and removes
the hostcache code from standard kernels---the code that depends on it
is not going to happen any time soon, I'm afraid.
1998-03-18 01:40:12 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Garrett Wollman
9cb3aff230 Move the ethertypes from <netinet/if_ether.h> to <net/ethernet.h>.
Many programs need the numbers but don't need the internals of ARP.

More commits to follow...
1997-01-03 19:51:54 +00:00
Bruce Evans
323416489d More cleanups to satisfy the following rules:
- C++ should be supported for application functions (use __BEGIN_DECLS,
  etc.).
- prototypes should be sorted.
- comments on #endif's should spell identifiers the same as the code.
- comments on #endif's should have the same sense as the code (use `!'
  to match ifndef, etc.).
1996-12-19 18:12:06 +00:00
Garrett Wollman
992af1d001 Clean up Bill's additions. 1996-12-19 15:42:52 +00:00
Bill Paul
18fe100709 Add prototypes for ethers.3 functions as per wollman:
> wollman     96/12/10 09:19:15
>
>   Modified:    lib/libc/net  ether_addr.c ethers.3
>   Log:
>   Get struct ether_addr directly from <net/ethernet.h> rather than pulling
>   in lots of unrelated junk from <net/if.h> and <net/if_ether.h>.  These
>   functions still aren't prototyped anywhere (but should be in
>   <net/ethernet.h>---got that, Bill?).

(Note that this file has no copyright header; one should probably
be added.)
1996-12-18 21:42:38 +00:00
Poul-Henning Kamp
26a8b0bf7e Megacommit to straigthen out ETHER_ mess.
I'm pretty convinced after looking at this that the majority of our
drivers are confused about the in/exclusion of ETHER_CRC_LEN :-(
1996-08-06 21:14:36 +00:00
Poul-Henning Kamp
e4b54c028f This file is the (intended) definitive source of the ETHER_ macros. 1996-08-05 14:02:38 +00:00