Commit Graph

62 Commits

Author SHA1 Message Date
Andrew Thompson
e1457c3eb1 If we miss the LINK_UP event from the network interface then the bridge port
will remain in the disabled state until another link event happens in the
future (if at all). Add a timer to periodically check the interface state and
recover.

Reported by:	Nik Lam <freebsdnik j2d.lam.net.au>
MFC after:	3 days
2006-03-06 02:28:41 +00:00
Andrew Thompson
43dc0e8c41 Fix up the Bridge Identifier field in the BPDU packet.
- use the cu_bridge_id rather than the cu_rootid for the bridge address [1]
 - the memcmp return value is not signed so the wrong interface may have been
   selected
 - fix up the calculation of sc_bridge_id

PR:		kern/93909 [1]
MFC after:	3 days
2006-02-28 00:13:24 +00:00
Andrew Thompson
6b74382014 Minor whitespace cleanup. 2005-12-17 10:03:48 +00:00
Andrew Thompson
6b32f3d3f2 Change most of the bridge and stp funtions to static. This has highlighted
that the following funtions are not used, wrap in '#ifdef noused' for the
moment.

 bstp_enable_change_detection
 bstp_disable_change_detection
 bstp_set_bridge_priority
 bstp_set_port_priority
 bstp_set_path_cost
2005-10-14 10:38:12 +00:00
Andrew Thompson
fd6238a659 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
Andrew Thompson
8eb8e358a0 Do not unconditionally set a spanning tree port to forwarding as the link may be
down when we attach. We wont get updated until a linkstate change happens.

Go via bstp_ifupdstatus() which checks the media status first.
2005-10-11 02:58:32 +00:00
Andrew Thompson
23e7643185 Mark the callouts as MPSAFE as if_bridge has been giant-free since day 1.
Use the SMP friendly callout_init_mtx() while we are here.

Approved by:	mlaier (mentor)
MFC after:	3 days
2005-08-18 20:17:00 +00:00
Andrew Thompson
691cdb5351 Ensure that we are holding the lock when initialising the bridge interface. We
could initialise while unlocked if the bridge is not up when setting the inet
address, ether_ioctl() would call bridge_init.

Change it so bridge_init is always called unlocked and then locks before
calling bstp_initialization().

Reported by:    Michal Mertl
Approved by:    mlaier (mentor)
MFC after:      3 days
2005-08-15 02:54:29 +00:00
Robert Watson
13f4c340ae Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
ifnet.if_drv_flags.  Device drivers are now responsible for
synchronizing access to these flags, as they are in if_drv_flags.  This
helps prevent races between the network stack and device driver in
maintaining the interface flags field.

Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
some less so.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:20:02 +00:00
Andrew Thompson
ea32e73208 - Previously when broadcasting to N number of interfaces we would run pfil
hooks for each outgoing interface but also run pfil hooks _N times_ on the
  bridge interface. This is changed so pfil hooks are run once for the bridge
  interface (bridge0) and then only on the outgoing interfaces in the broadcast
  loop.

- Simplify bridge_enqueue() by moving bridge_pfil() to the callers.

- Check (inet6_pfil_hook.ph_busy_count >= 0), it may be possible to have a
  packet filter hooked for only ipv6 but we were only checking if ipv4 hooks
  were busy.

- Minor optimisation for null mbuf check after bridge_pfil(), move it into the
  if-block as it couldnt possibly be null outside.

Prodded by:	mlaier
Approved by:	re (scottl), mlaier (mentor)
2005-07-06 01:24:45 +00:00
Brooks Davis
fc74a9f93a Stop embedding struct ifnet at the top of driver softcs. Instead the
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
 - Struct arpcom is no longer referenced in normal interface code.
   Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
   To enforce this ac_enaddr has been renamed to _ac_enaddr.
 - The second argument to ether_ifattach is now always the mac address
   from driver private storage rather than sometimes being ac_enaddr.

Reviewed by:	sobomax, sam
2005-06-10 16:49:24 +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