Commit Graph

2073 Commits

Author SHA1 Message Date
Gleb Smirnoff
a0c0e34bd4 Some minor cleanups:
- In rt_check() remove the senderr() macro and the "bad" label. They
  used to simplify code, but now aren't.
- Remove extra RT_LOCK_ASSERT() in rt_setgate(). The RT_REMREF macro
  does this.
- In rtfree() convert panics to KASSERTs.
- Strict the routing API: rtfree() should be called only in a case
  when we are completely sure we've got the last reference on the
  rtentry. In all other cases RTFREE_LOCKED() macro should be used.
  If the reference isn't the last one spit out a warning printf.
  Correct the only(?) case for this in rt_check().
- Fix typos in comments.
2007-05-22 16:17:31 +00:00
Andrew Thompson
6469e186ad - packets on the input interface were counted twice
- Use IFQ_HANDOFF instead of rolling our own
2007-05-20 03:21:59 +00:00
Andrew Thompson
fe45e65f10 Compare the partner system priority when choosing the aggregator. 2007-05-19 09:37:04 +00:00
Andrew Thompson
998971a70f Implement the Marker Protocol. A marker frame is placed on the interface queue
of each port and any further packets are blocked, when the all the marker frames
have been returned to us from the remote network device then we can be sure
that all interface queues are empty.

This is needed when a port is added or removed from the aggregation since it
will affect the hash based distribution, if the queues are not empty then a
packet from an existing connection may be placed on a different interface and
arrive out of order. This was previously achieved by suppressing transmission for
1 second, now that there is an active feedback this timeout as been increased
to 3 seconds and used as a fallback.
2007-05-19 07:47:04 +00:00
Robert Watson
4ce71ef718 Check return value of m_pullup() in firewire_input().
CID:		2105
Found with:	Coverity Prevent(tm)
2007-05-19 05:29:05 +00:00
Andrew Thompson
9bbba41e79 Fix a mbuf leak where sc_start fails or the protocol is none. 2007-05-19 01:40:18 +00:00
Andrew Thompson
3362a47464 Fix locking assert where we should hold the reader lock. 2007-05-18 23:38:35 +00:00
Brooks Davis
a45cbf12c8 Update the comments on if_alloc(), if_free(), if_free_type(), and
if_attach.

Remove a comment about pre-3.0 network drivers from if_attach().

Be a bit more consistant about whitespace near comments.
2007-05-16 19:59:01 +00:00
Brooks Davis
bec59525e6 The struct if_data members ifi_recvquota and ifi_xmitquota have been
unused for ages.  Rename them to ifi_spare_char1 and ifi_spare_char2
respectively to indicate this face.
2007-05-16 18:37:37 +00:00
Andrew Thompson
e2a77bb8b7 Fix unused variable error with !INET6
Reported by:	Artem Naluzhny, Frank Terhaar-Yonkers
2007-05-15 18:30:48 +00:00
Andrew Thompson
7a04b0f625 Feed ipv6 flowlabel to hash calculation.
Obtained from:	NetBSD
2007-05-15 07:59:49 +00:00
Andrew Thompson
3bf517e389 Change from a mutex to a read/write lock. This allows the tx port to be
selected simultaneously by multiple senders and transmit/receive is not
serialised between aggregated interfaces.
2007-05-15 07:41:46 +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
George V. Neville-Neil
559d3390d0 Integrate the Camellia Block Cipher. For more information see RFC 4132
and its bibliography.

Submitted by:   Tomoyuki Okazaki <okazaki at kick dot gr dot jp>
MFC after:      1 month
2007-05-09 19:37:02 +00:00
Andrew Thompson
a5715cb26e - Correctly check if lp_ioctl is null
- Remove lagg_ether_purgemulti as its no longer needed
 - Mark the interface as up if any ports are active rather than just the primary
2007-05-07 09:53:02 +00:00
Andrew Thompson
efcd0965ad The purgemulti call is not needed since all the ports have already been detached. 2007-05-07 00:52:26 +00:00
Andrew Thompson
cdc6f95f84 Call if_setlladdr() on the aggregation port from a taskqueue so the softc lock
is not held. The short delay between aggregating the port and setting the MAC
address is fine.
2007-05-07 00:35:15 +00:00
Andrew Thompson
108fe96a44 Avoid touching various unsafe parts if the interface is disappearing. 2007-05-07 00:28:55 +00:00
Andrew Thompson
d74fd34568 Change from using if_delmulti() to if_delmulti_ifma() as it simplifies the code
and is safe to use if the ifp has disappeared.

Suggested by:	bms
2007-05-07 00:18:56 +00:00
Andrew Thompson
ff6c5cf657 Fix flag descriptions. 2007-05-03 09:07:36 +00:00
Andrew Thompson
e3163ef60a - Add a disabled state for ports that can not be aggregated
- Refine check for lacp links, set to disabled if not suitable
2007-05-03 08:56:20 +00:00
Yaroslav Tykhiy
d562befcdd Fix a couple of typos in a comment. 2007-05-02 11:13:48 +00:00
Andrew Thompson
139722d4e4 Set the master flag on the right variable. 2007-05-02 08:58:28 +00:00
Andrew Thompson
c0194db365 Test for IFM_FDX rather than IFM_HDX as the half-duplex bit may not be set even
if the link is not full-duplex.
2007-05-02 07:52:55 +00:00
Andrew Thompson
18242d3b09 Rename the trunk(4) driver to lagg(4) as it is too similar to vlan trunking.
The name trunk is misused as the networking term trunk means carrying multiple
VLANs over a single connection. The IEEE standard for link aggregation (802.3
section 3) does not talk about 'trunk' at all while it is used throughout IEEE
802.1Q in describing vlans.

The lagg(4) driver provides link aggregation, failover and fault tolerance.

Discussed on:	current@
2007-04-17 00:35:11 +00:00
Andrew Thompson
575156b607 Fix a case where the multicast addresses were not removed from some ports. The
first port to be removed from the trunk would free the multicast list so
subsequent removed ports didnt have their multicast addresses removed.
2007-04-12 01:58:57 +00:00
Andrew Thompson
49fd43bdbc Fix an uninitialized variable warning. 2007-04-10 08:02:33 +00:00
Andrew Thompson
b47888ceba Add the trunk(4) driver for providing link aggregation, failover and fault
tolerance.  This driver allows aggregation of multiple network interfaces as
one virtual interface using a number of different protocols/algorithms.

failover    - Sends traffic through the secondary port if the master becomes
              inactive.
fec         - Supports Cisco Fast EtherChannel.
lacp        - Supports the IEEE 802.3ad Link Aggregation Control Protocol
              (LACP) and the Marker Protocol.
loadbalance - Static loadbalancing using an outgoing hash.
roundrobin  - Distributes outgoing traffic using a round-robin scheduler
              through all active ports.

This code was obtained from OpenBSD and this also includes 802.3ad LACP support
from agr(4) in NetBSD.
2007-04-10 00:27:25 +00:00
Gleb Smirnoff
5de558219a Fix regression in rev. 1.140.
Reported by:	Yuriy Tsibizov <Yuriy.Tsibizov gfk.ru>, bsam
2007-03-27 19:36:12 +00:00
Bruce M Simpson
75ae0c016b Fix a case where hardware removal of an interface caused an attempt to
announce an ll_ifma which has gone away. Add a KASSERT to catch regressions.

Bug found by:	Tom Uffner
2007-03-27 16:11:28 +00:00
Yaroslav Tykhiy
70e04181c2 Fix some statements in disc(4) and about it:
- ifnet is no more embedded in softc;
- the interface name is `disc', not `ds'.
2007-03-26 09:10:28 +00:00
Yaroslav Tykhiy
6ca7917e8f Give a hint that softc can contain many things besides ifp. 2007-03-26 09:05:10 +00:00
Yaroslav Tykhiy
a052cba9e2 We no longer embed ifnet in softc, and the pointer to ifnet
doesn't need to be first in softc now.  (It was the whole
ifnet structure itself that needed to be first in the good
old days.)  Fix the respective comment accordingly.

Add xrefs to ifnet(9) in some other comments while I'm here.

Pointed out by:		thompsa
2007-03-26 08:58:22 +00:00
Yaroslav Tykhiy
a2fce30c64 Introduce a new toy interface, edsc(4). It's a discard interface
imitating an Ethernet device, so vlan(4) and if_bridge(4) can be
attached to it for testing and benchmarking purposes.  Its source
can be an introduction to the anatomy of a network interface driver
due to its simplicity as well as to a bunch of comments in it.

(The rest of needed changes were in my previous commit, which got
interrupted in the middle.  Alas, CVS commits are not atomic.)
2007-03-26 04:50:06 +00:00
Bruce M Simpson
e7f8c8339c Fix a typo, and update a comment.
Submitted by:	yar
2007-03-22 19:08:39 +00:00
Gleb Smirnoff
9406b27489 When working on an RTM_CHANGE do the route editing in the following
sequence. First, if rt_ifa is going to be changed, then call
ifa_rtrequest(RTM_DELETE). Second, if gateway is going to be changed,
then call rt_setgate(). Third, change rt_ifa.

With this change we are able to change a link level route to a
gateway one, that wasn't possible before:

	# ifconfig em0 192.168.22.1/24
        # arp -s 192.168.22.99 00:11:22:33:44:55
        # route change 192.168.22.99 192.168.22.199
        # ping 192.168.22.99
	db>

Reported by:	avatar
2007-03-22 10:51:03 +00:00
Bruce M Simpson
402d5e2755 Make the m_pullup() diagnostic message compile-time conditional on DIAGNOSTIC.
Requested by:	glebius
2007-03-20 14:29:54 +00:00
Bruce M Simpson
5896d12465 Fix tinderbox; ng_ether needs to see if_findmulti(). 2007-03-20 03:15:43 +00:00
Bruce M Simpson
ec002fee99 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
Andrew Thompson
6c655efcaf etherbroadcastaddr is now unused. 2007-03-19 19:20:35 +00:00
Andrew Thompson
82912c1f69 M_BCAST & M_MCAST are now set by ether_input before passing to the bridge. 2007-03-19 19:13:02 +00:00
Bruce M Simpson
69462a8297 Clean up the ether_input() path by using the M_PROMISC flag.
Main points of this change:
 * Drop frames immediately if the interface is not marked IFF_UP.
 * Always trim off the frame checksum if present.
 * Always use M_VLANTAG in preference to passing 802.1Q frames
   to consumers.
 * Use __func__ consistently for KASSERT().
 * Use the M_PROMISC flag to detect situations where ether_input()
   may reenter itself on the same call graph with the same mbuf which
   was promiscuously received on behalf of subsystems such as
   netgraph, carp, and vlan.
 * 802.1P frames (that is, VLAN frames with an ID of 0) will now be
   passed to layer 3 input paths.
 * Deal with the special case for CARP in a sane way.

This is a significant rewrite of code on the critical path. Please report
any issues to me if they arise. Frames will now only pass through dummynet
if M_PROMISC is cleared, to avoid problems with re-entry.

The handling of CARP needs to be revisited architecturally. The M_PROMISC
flag may potentially be demoted to a link-layer flag only as it is in
NetBSD, where the idea originated.

Discussed on:	net
Idea from:	NetBSD
Reviewed by:	yar
MFC after:	1 month
2007-03-19 18:39:36 +00:00
Bruce M Simpson
6baa7420ed Add a sysctl net.link.tap.up_on_open which defaults to zero; when it
is non-zero, tap(4) instances will be marked IFF_UP on attach.

PR:		110383
Requested by:	Frank Behrens
MFC after:	2 weeks
2007-03-19 18:17:31 +00:00
Yaroslav Tykhiy
0b4e4d8710 Now <net/if_arp.h> is unused here. 2007-03-19 18:01:39 +00:00
Yaroslav Tykhiy
652399423d Fix a nameless constant: 6 -> ETHER_ADDR_LEN
Tested with:	md5(1)
2007-03-19 16:58:07 +00:00
Yaroslav Tykhiy
13cf779d54 Now that this driver uses ether_ioctl(), it no longer needs
the INET related include files.
2007-03-19 16:31:28 +00:00
Roman Kurakin
3d0a65c88d Give a chance for packet to appear with a correct input interfaces
in case of multiple interfaces with the same MAC in the same bridge.
This commit do not solve the entire problem. Only case where packet
arrived from such interface.

PR:     kern/109815
MFC after:      7 days
Submitted by:   Eygene Ryabinkin and rik@
Discussed with: bms@, thompsa@, yar@
2007-03-18 23:28:53 +00:00
Yaroslav Tykhiy
f84b2d6998 Remove a spurious blank line at the start of vlan_growhash().
Add a diagnostic message to the function about resizing vlan
hash table.
2007-03-15 14:10:51 +00:00
Andrew Thompson
8bc736d0dd Properly move the setting of bstp_linkstate_p to the bridgestp module. 2007-03-14 20:55:51 +00:00
Yaroslav Tykhiy
9c6dee24d7 Let vlan_ioctl() pass some work on to ether_ioctl()
and so reduce code duplication a bit.
2007-03-14 14:38:04 +00:00