Add support for bonding attributes just added to net-next.
On set, allow string or number value for enumerated attributes.
On show, use always use string value for attribute.
Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
Proportional Integral controller Enhanced (PIE) is a scheduler to address the
bufferbloat problem.
We present here a lightweight design, PIE(Proportional Integral controller
Enhanced) that can effectively control the average queueing latency to a target
value. Simulation results, theoretical analysis and Linux testbed results have
shown that PIE can ensure low latency and achieve high link utilization under
various congestion situations. The design does not require per-packet
timestamp, so it incurs very small overhead and is simple enough to implement
in both hardware and software. "
For more information, please see technical paper about PIE in the IEEE
Conference on High Performance Switching and Routing 2013. A copy of the paper
can be found at ftp://ftpeng.cisco.com/pie/.
Please also refer to the IETF draft submission at
http://tools.ietf.org/html/draft-pan-tsvwg-pie-00
All relevant code, documents and test scripts and results can be found at
ftp://ftpeng.cisco.com/pie/.
For problems with the iproute2/tc or Linux kernel code, please contact Vijay
Subramanian (vijaynsu@cisco.com or subramanian.vijay@gmail.com) Mythili Prabhu
(mysuryan@cisco.com)
Pavel Emelyanov [Thu, 26 Dec 2013 19:15:20 +0000 (23:15 +0400)]
iproute: Make it possible to specify index on link creation
The RTM_NEWLINK message accepts ifi_index non-zero value and lets
creation of links with given index (if it's free, or course). This
functionality is available since linux-v3.5.
This patch makes this API available via ip tool.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
After a decade of trying to deprecate the old policer syntax,
I believe it is time to kill it. The kernel build option for old
policer is gone for at least 5 years now (although backward
compatibility is still there). Being backward compatible meant
hijacking the keyword "action" and was obstructing policies like:
tc filter add dev eth0 parent ffff: protocol ip pref 10 \
u32 match ip protocol 1 0xff flowid 1:10 \
action skbedit mark 1 \
action police rate 10kbit burst 10k pipe \
action skbedit mark 2 \
action police rate 20kbit burst 20k pipe \
action action mirred egress mirror dev dummy0
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
$ ss state established \( sport = :4060 or sport = :4061 or sport = :4062 or sport = :4063 or sport = :4064 or sport = :4065 or sport = :4066 or sport = :4067 \) > /dev/null
Aborted
In the example above ssfilter_bytecompile(...) will return (int)136.
char l1 = 136; means -120 which will result in a negative number
being passed to malloc at misc/ss.c:913.
Simply declare l1 and l2 as integers to avoid the char overflow.
This is one of the issues originally reported in http://bugs.debian.org/511720
Fix the same problem in other code paths as well (thanks to Eric Dumazet).
Reported-by: Andreas Schuldei <andreas@debian.org> Signed-off-by: Andreas Henriksson <andreas@fatal.se> Reviewed-by: Eric Dumazet <edumazet@google.com>
Hangbin Liu [Tue, 19 Nov 2013 15:46:20 +0000 (23:46 +0800)]
ipaddrlabel: use uint32_t instead of int32_t
As both linux kernel and function ipaddrlabel_modify use unsigned int for
label. We should also use unsigned int value when print addrlabel in case of
misunderstanding.
$ ss state established \( sport = :4060 or sport = :4061 or sport = :4062 or sport = :4063 or sport = :4064 or sport = :4065 or sport = :4066 or sport = :4067 \) > /dev/null
Aborted
In the example above ssfilter_bytecompile(...) will return (int)136.
char l1 = 136; means -120 which will result in a negative number
being passed to malloc at misc/ss.c:913.
Simply declare l1 and l2 as integers to avoid the char overflow.
This is one of the issues originally reported in http://bugs.debian.org/511720
Fix the same problem in other code paths as well (thanks to Eric Dumazet).
Reported-by: Andreas Schuldei <andreas@debian.org> Signed-off-by: Andreas Henriksson <andreas@fatal.se> Reviewed-by: Eric Dumazet <edumazet@google.com>
Hangbin Liu [Tue, 19 Nov 2013 15:46:20 +0000 (23:46 +0800)]
ipaddrlabel: use uint32_t instead of int32_t
As both linux kernel and function ipaddrlabel_modify use unsigned int for
label. We should also use unsigned int value when print addrlabel in case of
misunderstanding.
Nigel Kukard [Wed, 30 Oct 2013 18:44:58 +0000 (18:44 +0000)]
Fix tc stats when using -batch mode
There are two global variables in tc/tc_class.c:
__u32 filter_qdisc;
__u32 filter_classid;
These are not re-initialized for each line received in -batch mode:
class show dev eth0 parent 1: classid 1:1
class show dev eth0 parent 1: classid 1:1
Error: duplicate "classid": "1:1" is the second value.
This patch fixes the issue by initializing the two globals when we
enter print_class().
xfrm: enable to set non-wildcard mark 0 on SAs and SPs
ip xfrm considers that the user-defined mark is "any" as soon as
(mark.v & mark.m == 0), which prevents from specifying non-wildcard
marks that include the value 0 (typically 0/0xffffffff).
Yet, matching exactly mark 0 is useful for instance to separate
vti policies from global policies.
Fan Du [Tue, 1 Oct 2013 04:09:05 +0000 (21:09 -0700)]
xfrm: use memcpy to suppress gcc phony buffer overflow warning.
This bug is reported from below link:
https://bugzilla.redhat.com/show_bug.cgi?id=982761
An simplified command from its original reproducing method in bugzilla:
ip xfrm state add src 10.0.0.2 dst 10.0.0.1 proto ah spi 0x12345678 auth md5 12
will cause below spew from gcc.
Reported-by: Sohny Thomas <sthomas@linux.vnet.ibm.com>
limit : max number of packets on whole Qdisc (default 10000)
flow_limit : max number of packets per flow (default 100)
quantum : the max deficit per RR round (default is 2 MTU)
initial_quantum : initial credit for new flows (default is 10 MTU)
maxrate : max per flow rate (default : unlimited)
buckets : number of RB trees (default : 1024) in hash table.
(consumes 8 bytes per bucket)
[no]pacing : disable/enable pacing (default is enable)
Usage :
tc qdisc add dev $ETH root fq
tc qdisc del dev $ETH root 2>/dev/null
tc qdisc add dev $ETH root handle 1: mq
for i in `seq 1 4`
do
tc qdisc add dev $ETH parent 1:$i est 1sec 4sec fq
done
New command line flag to output statistics in JSON format.
In our envrionment, we have scripts that parse output of commands.
It is better to use a format supported by existing parsers.
limit : max number of packets on whole Qdisc (default 10000)
flow_limit : max number of packets per flow (default 100)
quantum : the max deficit per RR round (default is 2 MTU)
initial_quantum : initial credit for new flows (default is 10 MTU)
maxrate : max per flow rate (default : unlimited)
buckets : number of RB trees (default : 1024) in hash table.
(consumes 8 bytes per bucket)
[no]pacing : disable/enable pacing (default is enable)
Usage :
tc qdisc add dev $ETH root fq
tc qdisc del dev $ETH root 2>/dev/null
tc qdisc add dev $ETH root handle 1: mq
for i in `seq 1 4`
do
tc qdisc add dev $ETH parent 1:$i est 1sec 4sec fq
done
linklayer interface between kernel and tc/userspace
This iproute2 tc patch is connected to the kernel
- commit 8a8e3d84b17 (net_sched: restore "linklayer atm" handling)
The rate table calculated by tc, have gotten replaced in the kernel
and is no-longer used for lookups.
This happened in kernel release v3.8 caused by kernel
- commit 56b765b79 ("htb: improved accuracy at high rates").
This change unfortunately caused breakage of tc overhead and
linklayer parameters.
Kernel overhead handling got fixed in kernel v3.10 by
- commit 01cb71d2d47 (net_sched: restore "overhead xxx" handling)
Kernel linklayer handling got fixed in kernel v3.11 by
- commit 8a8e3d84b17 (net_sched: restore "linklayer atm" handling)
The linklayer fix introduced a struct change, that allow the linklayer
attribute to be transferred between tc and kernel. This patch make use
of this linklayer attribute.
The linklayer setting is transfer to the kernel. And linklayer
setting received from the kernel is printed with a prefixed
"linklayer" when listing current configuration. The default
TC_LINKLAYER_ETHERNET is only printed in detailed output mode.
Nicolas Dichtel [Thu, 29 Aug 2013 12:29:07 +0000 (14:29 +0200)]
ipnetns: fix ip batch mode when using 'netns exec'
Since commit a05f6511f543, ip batch mode is broken when using 'netns exec' cmd.
When WIFEXITED() returns true, it means that the child exited normally, hence
we must not call exit() but just returns the status. If we call exit, the next
commands in the file file are not executed.
If WIFEXITED() returns false, we can call exit() because it means that the
child failed.
Thomas Egerer [Thu, 29 Aug 2013 12:00:36 +0000 (14:00 +0200)]
ip/xfrm: Fix potential SIGSEGV when printing extra flags
The git-commit dc8867d0, that added support for displaying the
extra-flags of a state, introduced a potential segfault.
Trying to show a state without the extra-flag attribute and show_stats
enabled, would cause the NULL pointer in tb[XFRMA_SA_EXTRA_FLAGS] to be
dereferenced.
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
Martin Schwenke [Mon, 19 Aug 2013 05:43:30 +0000 (15:43 +1000)]
ip: Add label option to ip monitor
Prefix labelling is currently only activated when monitoring "all"
objects. However, the output can still be confusing when monitoring
more than 1 object, so add an option to always print prefix labels.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Thomas Richter [Tue, 30 Jul 2013 06:16:41 +0000 (08:16 +0200)]
iproute vxlan add support for fdb replace command
Add support for the bridge fdb replace command to replace an
existing entry in the vxlan device driver forwarding data base.
The entry is identified with its unicast mac address and its
corresponding remote destination information is updated.
This is useful for virtual machine migration and replaces the
bridge fdb del and bridge fdb add commands.
It follows the same interface as ip neigh replace commands.
Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Stefan Tomanek [Sat, 3 Aug 2013 12:23:16 +0000 (14:23 +0200)]
ip rule: add route suppression options
When configuring a system with multiple network uplinks and default routes, it
is often convenient to reference a routing table multiple times - but reject
its routing decision if certain constraints are not met by it.
Consider this setup:
$ ip route add table secuplink default via 10.42.23.1
$ ip rule add pref 100 table main suppress_prefixlength 0
$ ip rule add pref 150 fwmark 0xA table secuplink
With this setup, packets marked 0xA will be processed by the additional routing
table "secuplink", but only if no suitable route in the main routing table can
be found. By suppressing entries with a prefixlength of 0 (or less), the
default route (/0) of the table "main" is hidden to packets processed by rule
100; packets traveling to destinations via more specific routes are processed
as usual.
It is also possible to suppress a routing entry if a device belonging to
a specific interface group is to be used:
$ ip rule add pref 150 table main suppress_group 1
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
projects / mirror_iproute2.git / log