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MPLS support partly based on the (abandoned?) AYAME project.
Basic LSR (Label Switch Router) functionality is present, but not fully
functional yet.
It is currently possible to insert entries in the LIB (Label Information Base)
with route(8), but setting the operation type is not supported yet.
Imported to allow more people to work on this in the coming weeks.
ok claudio@ laurent@ dlg@
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crc in addition to the existing "oneshot" mode and use them to replace
ieee80211_crc_update() with the new ether_crc32_le_update(). Saves 1k
kernel bss + some code.
Mark the new ether_crc32_[lb]e_update functions as __pure for a
~25x speedup (on my i386 at least).
feedback and ok damien@
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decent drivers prefer to have a lot of packets on the send queue so they
can queue a lot of them up on the tx ring and then post them all in one
big chunk. unfortunately our stack queues one packet onto the send queue
and then calls the start handler immediately.
this mitigates against that queue, send, queue, send behaviour by trying to
call the start routine only once per softnet. now its queue, queue, queue,
send.
this is the result of a lot of discussion with claudio@
tested by many.
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trunk(4).
PR 5248
ok reyk@
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Instead of using the same IP on multiple interfaces, carp has to be
configured with the new "carpnodes" and "balancing" options.
# ifconfig carp0 carpnodes 1:0,2:100,3:100 balancing ip carpdev sis0 192.168.5.50
Please note, that this is a flag day for anyone using carp balancing.
You'll need to adjust your configuration accordingly.
Addititionally this diff adds IPv6 NDP balancing support.
Tested and OK mcbride@, reyk@.
Manpage help by jmc@.
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packet have to be protected by the same splnet. Otherwise on
architectures where soft interrupts are executed immediately, the
interrupt is processed before the packet is in the queue.
On real hardware interfaces this was not a problem as ether_input()
is called at splnet anyway. But when sending to a tun interface
the packet got delayed.
ok beck@ miod@ henning@ mpf@ markus@
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that is kept in a list per carp interface. This is the huge first
step necessary to make carp load balancing nice and easy. One carp
interface can now contain up to 32 virtual host instances.
This doesn't do anything useful yet, but here is how an ifconfig
for multiple entries now looks like:
# ifconfig carp2 carpnodes 5:0,6:100 192.168.5.88
carp2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:00:5e:00:01:05
carp: carpdev sis0 advbase 1
state MASTER vhid 5 advskew 0
state BACKUP vhid 6 advskew 100
groups: carp
inet 192.168.5.88 netmask 0xffffff00 broadcast 192.168.5.255
OK mcbride@
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-remove useless casts
-MALLOC/FREE -> malloc/free
-use M_ZERO where appropriate instead of seperate bzero
feedback & ok krw, hshoexer
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#if NPF > 0
to prevent feeding back the mbuf do looutput if we are on simplex
interfaces and the packet has been routed by pf, whch can lead to a loop
in weird corner cases.
apparently nobody triggered these cases in ages, since pf.h was not included
and thus NPF not defined and thus this code not compiled.
ok theo
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OK claudio@ jason@
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addresses in struct arpcom. this lets a nic driver easily see if it wants
allmulti behaviour, which in turn means we can clean some code up.
ok jason@ claudio@ norby@
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This provides a similar functionality as ARP balancing,
but also works for traffic that comes across routers.
IPv6 is supported as well.
The configuration scheme will change as soon we have sth better.
Also add support for changing the MAC address on carp(4)
interfaces. (code from mcbride)
Tested by pyr@ and reyk@
OK mcbride@
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ifp0->if_link_state == LINK_STATE_UP to handle the new half/full
duplex link states. i forgot to commit these snippets before.
ok jsg@
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it's "special" case in ether_input(). Based on similiar idea in FreeBSD.
ok brad
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parameter so they can work on alternate tables. table 0 hardcoded for
many callers yet, that will be adapted step by step.
input + ok claudio norby hshoexer
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supporting ethernet jumbo frames. there's no standard for the size of
jumbo MTUs, so either let the driver set it's own value or use 9000
byte jumbo frames by default.
ok brad@
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the remainder of the network stack from splimp to splnet.
ok miod@
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bpf FILDROP interface exists for about one year but the required
interface to the drivers was missing - so it was useless. this new
approach based on a design by henning@ uses a new mbuf flag to mark
filtered packets and to drop them in the generic network stack input
routines (like ether_input).
for example; after some additional testing, this could be used by
dhclient to filter everything except DHCP packets (track tech@
for a corresponding dhclient diff). the "filter dropped" packets won't
reach the network stack. so it's probably some kind of a very basic
application layer packet filter ;).
ok canacar@, discussed with henning@ and others
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in the data part for the data from the previously distinct tags.
look up the tag early and carry a pointer to it around.
makes the code easier and saves some tag lookups and thus helps performance,
as proven by tests run by Schberle Dniel <Schoeberle.Daniel@aamtech.hu>
Initially hacked up somewhere over the atlantic ocean in an A330
early testing reyk and moritz, "put it in" theo
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ok deraadt@
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consume vlan frames that no vlan interface wants, so they can
still be bridged.
This way, the bridge can bridge encapsulated frames _and_ bridge
between vlan interfaces.
ok henning markus
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your new options off, too
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ok brad@
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implementation. it currently supports round robin mode with link state
checking, additional modes will be added later.
ok brad@, deraadt@
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Advertisements run through the carp interface first.
So we just take the address from ifp0.
While we're there,
also remove carp_macmatch6, which isn't used anymore.
Proposed by mcbride@
ok mcbride@, pascoe@
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ok pascoe@ mpf@
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matching in the bridge receive path to make CARP operate correctly
on physical interfaces that are participating in a bridge.
ok mcbride@ henning@ dlg@
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style as vlan(4). carp interfaces no longer require the physical interface
to be on the same subnet as the carp interface, or even that the physical
interface has an adress at all, so CARP can now be used on /30 networks.
ok deraadt@ henning@
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Initial porting from NetBSD by David Berghoff.
Modified/simplified to match our sppp implementation.
ok deraadt@
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ok mcbride@
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From Seishi Hiragushi via FreeBSD PR kern/49957.
Also, while we're here, make the loop counter size_t.
ok mcbride@
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things such that code that only need a second-resolution uptime or wall
time, and used to get that from time.tv_secs or mono_time.tv_secs now get
this from separate time_t globals time_second and time_uptime.
ok art@ niklas@ nordin@
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is full, along with a timer that unsets it again after 10ms.
The input queue beeing full is a reliable indicator for CPU overload, and
this flag allows other subsystems to cope with the situation.
hacked with beck
ok kjc@ markus@ beck@
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itojun@ ok
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then ifnet_addrs[ifp->if_index] leaks; if it's called after if_detach()
then if_free_sadl() does nothing; ok itojun
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Fixes leakage of mbufs on error.
Pointed out by Max Laier.
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Allows multiple hosts to share an IP address, providing high availability
and load balancing.
Based on code by mickey@, with additional help from markus@
and Marco_Pfatschbacher@genua.de
ok deraadt@
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pf routed. prevents a kernel lockup with some (non-sensical) route-to
rules. report and debugging by mpech@. ok itojun@, henning@, mpech@.
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rescinded 22 July 1999. Proofed by myself and Theo.
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