Commit Graph

11 Commits

Author SHA1 Message Date
Andrew Thompson
7c2fb83a0b Add code that clears certain capabilities from the member interface, these are
restored when its removed from the bridge.

At the moment we only clear IFCAP_TXCSUM. Since a locally generated packet on
the bridge may be sent out any one or more interfaces it cant be assumed that
every card does hardware csums. Most bridges don't generate a lot of traffic
themselves so turning off offloading won't hurt, bridged packets are
unaffected.

Tested by:	Bruce Walker (bmw borderware.com)
MFC after:	5 days
2006-01-14 03:51:31 +00:00
Andrew Thompson
a47f91cdc4 When pfil(9) is enabled the bridge only considers ETHERTYPE_ARP, ETHERTYPE_IP and
ETHERTYPE_IPV6 frames. Change this to be a sysctl knob so that is able to still
bridge non-IP packets if desired.

Also return early if all pfil_* sysctls are turned off, the user obviously does
not want to filter on the bridge.
2005-12-29 09:39:15 +00:00
Andrew Thompson
73ff045c57 Add RFC 3378 EtherIP support. This change makes it possible to add gif
interfaces to bridges, which will then send and receive IP protocol 97 packets.
Packets are Ethernet frames with an EtherIP header prepended.

Obtained from:	NetBSD
MFC after:	2 weeks
2005-12-21 21:29:45 +00:00
Ruslan Ermilov
78ad54210f -mdoc sweep. 2005-11-18 10:56:28 +00:00
Andrew Thompson
4f3cfcc12b Clarify that any firewall that has pfil(9) hooks can be used.
Suggested by:	sam
Approved by:	mlaier (mentor)
MFC after:	3 days
2005-09-06 22:38:40 +00:00
Andrew Thompson
489fc2258f Previously the bridge MTU was set to ETHERMTU and could not be changed. Since
we can only bridge interfaces with the same value it meant that all members had
to be set at ETHERMTU as well.

Allow the first member to be added to define the MTU for the bridge, the check
still applies to all additional members.

Print an informative message if the MTU is incorrect [1]

Requested by:	Niki Denev [1]
Approved by:	mlaier (mentor)
MFC after:	3 days
2005-07-13 20:40:19 +00:00
Andrew Thompson
f7cbc4cc6e Fix a type-o in a bridging example.
Submitted by:	Niki Denev
Approved by:	mlaier (mentor)
Approved by:	re (blanket)
2005-06-27 10:58:22 +00:00
Ruslan Ermilov
a4be0b3cc1 (Mostly) markup fixes.
Approved by:	re (blanket)
2005-06-16 18:46:17 +00:00
Andrew Thompson
c8b0129238 Add dummynet(4) support to if_bridge, this code is largely based on bridge.c.
This is the final piece to match bridge.c in functionality, we can now be a
drop-in replacement.

Approved by:	mlaier (mentor)
2005-06-10 01:25:22 +00:00
Andrew Thompson
82116c339c Bring in IPFW layer2 filtering from bridge.c, this allows Ethernet filtering
using the layer2, mac and mac-type keywords.

This is one of the last features that bridge.c has over if_bridge and gets us
very close to a full functional replacement.

Approved by:	mlaier (mentor)
2005-06-07 21:20:18 +00:00
Andrew Thompson
31997bf223 Add if_bridge, which provides more advanced Ethernet bridging and 802.1d
spanning tree support.

Based on Jason Wright's bridge driver from OpenBSD, and modified by Jason R.
Thorpe in NetBSD.

Reviewed by:	mlaier, bms, green
Silence from:	-net
Approved by:	mlaier (mentor)
Obtained from:	NetBSD
2005-06-05 02:59:26 +00:00