Commit Graph

18 Commits

Author SHA1 Message Date
Phil Sutter
d17b136f7d Use C99 style initializers everywhere
This big patch was compiled by vimgrepping for memset calls and changing
to C99 initializer if applicable. One notable exception is the
initialization of union bpf_attr in tc/tc_bpf.c: changing it would break
for older gcc versions (at least <=3.4.6).

Calls to memset for struct rtattr pointer fields for parse_rtattr*()
were just dropped since they are not needed.

The changes here allowed the compiler to discover some unused variables,
so get rid of them, too.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
2016-07-20 12:05:24 -07:00
Phil Sutter
62000e51e0 Use ARRAY_SIZE macro everywhere
This patch was generated by the following semantic patch (a trimmed down
version of what is shipped with Linux sources):

@@
type T;
T[] E;
@@
(
- (sizeof(E)/sizeof(*E))
+ ARRAY_SIZE(E)
|
- (sizeof(E)/sizeof(E[...]))
+ ARRAY_SIZE(E)
|
- (sizeof(E)/sizeof(T))
+ ARRAY_SIZE(E)
)

The only manual adjustment was to include utils.h in misc/nstat.c to make
the macro known there.

Signed-off-by: Phil Sutter <phil@nwl.cc>
2016-06-29 09:18:18 -07:00
Stephen Hemminger
df4b043f08 bridge: code cleanup
Use checkpatch auto fix to cleanup lingering style issues
2016-03-21 11:56:01 -07:00
Stephen Hemminger
c079e121a7 libnetlink: add size argument to rtnl_talk
There have been several instances where response from kernel
has overrun the stack buffer from the caller. Avoid future problems
by passing a size argument.

Also drop the unused peer and group arguments to rtnl_talk.
2015-05-27 13:00:21 -07:00
Roopa Prabhu
42ecedd4ba fix ip -force -batch to continue on errors
This patch replaces exits with returns in several
iproute2 commands. This fixes `ip -batch -force`
to not exit but continue on errors.

$cat c.txt
route del 1.2.3.0/24 dev eth0
route del 1.2.4.0/24 dev eth0
route del 1.2.5.0/24 dev eth0
route add 1.2.3.0/24 dev eth0

$ip -force -batch c.txt
RTNETLINK answers: No such process
Command failed c.txt:2
RTNETLINK answers: No such process
Command failed c.txt:3

Reported-by: Sven-Haegar Koch <haegar@sdinet.de>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
2015-03-24 14:59:40 -07:00
Roopa Prabhu
22a98f5140 bridge link: add support to specify master
This patch adds support to specify 'master' keyword,
to target a bridge link command explicitly to the software
bridge driver.

Adds self/master keywords to usage and man page

v2:
	fix usage to say (self and master) and not (self or master)

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
2015-02-27 18:58:04 -08:00
Alex Pilon
6b8c871dc1 Allow specifying bridge port STP state by name rather than number.
The existing behaviour forces one to memorize the integer constants for
STP port states.

    # bridge link set dev dummy0 state 3

This patch makes it possible to use the lowercased port state name.

    # bridge link set dev dummy0 state forwarding

Invalid non-integer inputs now cause exit with status -1.

Signed-off-by: Alex Pilon <alp@alexpilon.ca>
2015-02-24 15:59:44 -08:00
Scott Feldman
674bb438bc bridge/link: add learning_sync policy flag
v2:

Resending now that the dust has cleared in 3.18 on "self" vs. hwmode debate for
brport settings.  learning_sync is now set/cleared using "self" qualifier on
brport.

v1:

Add 'learned_sync' flag to turn on/off syncing of learned MAC addresses from
offload device to bridge's FDB.   Flag is be set/cleared on offload device port
using "self" qualifier:

  $ sudo bridge link set dev swp1 learning_sync on self

  $ bridge -d link show dev swp1
  2: swp1 state UNKNOWN : <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master br0 state forwarding priority 32 cost 2
      hairpin off guard off root_block off fastleave off learning off flood off
  2: swp1 state UNKNOWN : <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master br0
      learning on learning_sync on

Adds new IFLA_BRPORT_LEARNED_SYNCED attribute for IFLA_PROTINFO on the SELF
brport.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
2015-01-01 10:02:53 -08:00
Roopa Prabhu
6fdb465869 bridge link: add option 'self'
Currently self is set internally only if hwmode is set.
This makes it necessary for the hw to have a mode.
There is no hwmode really required to go to hardware. So, introduce
self for anybody who wants to target hardware.

v1 -> v2
    - fix a few bugs. Initialize flags to zero: this was required to
    keep the current behaviour unchanged.

v2 -> v3
    - fix comment

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
2014-12-24 12:29:46 -08:00
Andreas Henriksson
9dca899b2d bridge: Make filter_index match in signedness
Michael Tautschnig wrote:

During a rebuild [...]. Please note that we use our research
compiler tool-chain (using tools from the cbmc package), which permits extended
reporting on type inconsistencies at link time.

[...]
gcc   bridge.o fdb.o monitor.o link.o mdb.o vlan.o ../lib/libnetlink.a ../lib/libutil.a  ../lib/libnetlink.a ../lib/libutil.a -o bridge
file link.c line 18: error: conflicting types for variable "filter_index"
old definition in module fdb file fdb.c line 29
signed int
new definition in module link file link.c line 18
unsigned int
<builtin>: recipe for target 'bridge' failed
make[3]: *** [bridge] Error 64
make[3]: Leaving directory '/srv/jenkins-slave/workspace/sid-goto-cc-iproute2/iproute2-3.14.0/bridge'
Makefile:45: recipe for target 'all' failed

While practical constraints may limit the value of filter_index to remain within
the bounds of a positive signed int, there is certainly no such guarantee here.
Also, a plain majority vote suggests that this really just a wrong declaration
in link.c as several declarations of filter_index as signed int exist.

[...]

My followup on this was:

I think the majority is wrong.

filter_index is assigned exclusively from if_nametoindex or ll_name_to_index
which both return unsigned int.

Changing it to unsigned everywhere seems better.

This has been minimally tested by using the bridge tool
to add vids and showing available vids on different devices.

Reported-by: Michael Tautschnig <mt@debian.org>
Signed-off-by: Andreas Henriksson <andreas@fatal.se>
2014-06-09 12:40:45 -07:00
Vlad Yasevich
f0f4ab600b bridge: Add learning and flood support
Add ability to control learning and flood flags on bridge
ports.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
2014-05-28 17:10:45 -07:00
John Fastabend
a40d0827a5 iproute2: bridge: fix 'bridge link' setlink/getlink parsing
Use IFLA_AF_SPEC nested attributes to lookup bridge mode and when
doing strcmp() check for equality.

These appear to be typos from the original commit,

commit 64108901b7
Author: Vlad Yasevich <vyasevic@redhat.com>
Date:   Fri Mar 15 10:01:28 2013 -0700

    bridge: Add support for setting bridge port attributes

Also set flags to BRIDGE_FLAGS_SELF instead of using OR operation.
This allows setting the bridge mode when not being used with a
master device.

To allow setting both master and self devices simultaneously we
will need to add a {self|master} field similar to fdb commands.
For now the command sets are mutually exclusive as noted in the
original commit.

With this patch 'bridge link set' works now,

# ./bridge/bridge link set dev veth1 cost 3
# ./bridge/bridge link show
10: veth1 state UP : <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master bridge0 state forwarding priority 3 cost 3

CC: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
2013-06-03 19:55:32 -07:00
Stephen Hemminger
4cd20da16f bridge: add oneline option
Split output of 'bridge link' across multiple lines,
only show the flags if -d is set, and add --oneline option
like ip command.
2013-03-16 10:18:50 -07:00
Vlad Yasevich
b1b7ce0f0d bridge: Add support for printing bridge port attributes
Output new nested bridge port attributes.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
2013-03-16 10:02:18 -07:00
Vlad Yasevich
64108901b7 bridge: Add support for setting bridge port attributes
Add netlink support bridge port attributes such as cost, priority, state
and flags.  This also adds support for HW mode such as VEPA or VEB.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
2013-03-16 10:01:53 -07:00
Stephen Hemminger
1465db1a14 bridge: use rta_getattr_xxx wrappers
Don't peek at RTA_DATA() directly.
2012-10-29 17:54:09 -07:00
Stephen Hemminger
38df7ac95d bridge: remove trailing whitespace 2012-10-29 17:48:55 -07:00
Stephen Hemminger
d04bc300c3 Add bridge command
New tool to allow manipulating forwarding entries and monitoring
bridge events.
2012-08-01 15:23:49 -07:00