This patch implements support for the IFLA_BR_VLAN_FILTERING attribute
in iproute2 so it can enable/disable vlan_filtering.

Example:
$ ip link set br0 type bridge vlan_filtering 1
$ ip -d link show br0
6: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP mode DEFAULT group default
    link/ether 08:00:27:ea:07:38 brd ff:ff:ff:ff:ff:ff promiscuity 0
    bridge forward_delay 1500 hello_time 200 max_age 2000 vlan_filtering 1
    addrgenmode eui64
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

When showing bridge attributes, show also ageing_time, stp_state and
priority if available.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

fix a typo: "noarp" -> "arp"
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Allow to print link type usage by: ip link help bridge_slave
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Allow to print link type usage by: ip link help bridge
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Add missing link type "bridge_slave".
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Change '-human-readble' to '-human-readable'.
Signed-off-by: Phil Sutter <phil@nwl.cc>

Save some space by using variable size for nsid cache elements.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Signed-off-by: Phil Sutter <phil@nwl.cc>

Add support to be able to set and show the value of tlb_dynamic_lb
(IFLA_BOND_TLB_DYNAMIC_LB).
Example:
$ ip -d link show dev bond0 type bond
7: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN
mode DEFAULT group default
    link/ether ce:2f:e1:6e:d7:e0 brd ff:ff:ff:ff:ff:ff promiscuity 0
    bond mode balance-tlb miimon 100 updelay 0 downdelay 0 use_carrier 1
arp_interval 0 arp_validate none arp_all_targets any primary_reselect
always fail_over_mac none xmit_hash_policy layer2 resend_igmp 1
num_grat_arp 1 all_slaves_active 0 min_links 0 lp_interval 1
packets_per_slave 1 lacp_rate slow ad_select stable tlb_dynamic_lb 1
addrgenmode eui64

$ ip -d l set dev bond0 type bond tlb_dynamic_lb 0
$ ip -d link show dev bond0 type bond
7: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN
mode DEFAULT group default
    link/ether ce:2f:e1:6e:d7:e0 brd ff:ff:ff:ff:ff:ff promiscuity 0
    bond mode balance-tlb miimon 100 updelay 0 downdelay 0 use_carrier 1
arp_interval 0 arp_validate none arp_all_targets any primary_reselect
always fail_over_mac none xmit_hash_policy layer2 resend_igmp 1
num_grat_arp 1 all_slaves_active 0 min_links 0 lp_interval 1
packets_per_slave 1 lacp_rate slow ad_select stable tlb_dynamic_lb 0
addrgenmode eui64
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

Frontend support for kernel commit a5c90b29e5cc ("act_bpf: properly
support late binding of bpf action to a classifier").
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

One option is required for bearer set and bearer get.

Align with upstream kernel.

Before this patch both addmdb and delmdb events were printed the same,
now we'll get a "Deleted" string in front when delmdb is received.
Before:
$ bridge mdb add dev br0 port eth3 grp 239.0.0.1
(monitor) dev br0 port eth3 grp 239.0.0.1 temp
$ bridge mdb del dev br0 port eth3 grp 239.0.0.1
(monitor) dev br0 port eth3 grp 239.0.0.1 temp
^^ No way to differentiate between both events.

After:
$ bridge mdb add dev br0 port eth3 grp 239.0.0.1
(monitor) dev br0 port eth3 grp 239.0.0.1 temp
$ bridge mdb del dev br0 port eth3 grp 239.0.0.1
(monitor) Deleted dev br0 port eth3 grp 239.0.0.1 temp
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

Reset the 'preferred_family' global variable
to its initially set value before each batch
file command is processed.
Signed-off-by: Antti Paila <antti.paila@gmail.com>

This is similar to command options corresponding to other NTF_* flags
already exposed to the user space (examples self/master).

Also updates bridge man page (The man page patch also includes
a fix to the 'self' entry and documents 'master' for fdb entries)
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

Left over copy/paste from ip monitor man page.

This patch allows the user to specify the vlan of the mdb group being
added or deleted and adds support for displaying the vlan when
dumping mdb information or monitoring it. It also updates the man page
to reflect the new "vid" argument for mdb.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

This patch adds support to set and display protodown on a switch port. The
switch driver can handle this error state by doing a phys down on the port.

One example user space application setting this flag is a multi-chassis
LAG application to handle split-brain situation on peer-link failure.

Example:
root@net-next:~# ip link set eth1 protodown on
root@net-next:~/iproute2# ip link show eth1
4: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:12:35:01 brd ff:ff:ff:ff:ff:ff protodown on
root@net-next:~/iproute2# ip link set eth1 protodown off
root@net-next:~/iproute2# ip link show eth1
4: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:12:35:01 brd ff:ff:ff:ff:ff:ff
root@net-next:~/iproute2#
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com>

Prefer using the POSIX constant PATH_MAX instead of the legacy BSD
derived MAXPATHLEN. The necessary includes for MAXPATHLEN and PATH_MAX
are <sys/param.h> and <limits.h>, respectively.
Signed-off-by: Felix Janda <felix.janda@posteo.de>
Tested-by: Yegor Yefremov <yegorslists@googlemail.com>

This patch adds support for ADDMDB/DELMDB notifications about router ports
which have been added or deleted/expired respectively.

Example output:
$ bridge -s monitor mdb
Deleted router port dev eth3 master br0
router port dev eth3 master br0
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

Make sure that return value of each socket() call is properly checked
and do not continue processing if the call failed.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Remove dupldated include for <linux/xfrm.h>, since it's already
included by 'xfrm.h'.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Error was:
f_bpf.o: In function `bpf_parse_opt':
f_bpf.c:(.text+0x88f): undefined reference to `secure_getenv'
m_bpf.o: In function `parse_bpf':
m_bpf.c:(.text+0x587): undefined reference to `secure_getenv'
collect2: error: ld returned 1 exit status

There is no special reason to use the secure version of getenv, thus let's
simply use getenv().

CC: Daniel Borkmann <daniel@iogearbox.net>
Fixes: 88eea539 ("tc: {f,m}_bpf: allow to retrieve uds path from env")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Tested-by: Yegor Yefremov <yegorslists@googlemail.com>

Really by default ss dumps not only TCP sockets but any kind of socket
which is in ESTABLISHED state (TCP/UDP/UNIX).
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Reported-by: Miha Marolt <miham@beyondsemi.com>

Zhang Shengju some places where tabs were not being used.
Go ahead and fix all the trival checkpatch warnings in ip/ip.c
Also fix bridge.c

It really partially reverts:

    ec4d0d8a (ss: Replace unixstat struct by new sockstat struct)

but adds few fields (name & peer_name) from removed unixstat to sockstat struct to easy
return original code.

Fixes: ec4d0d8a (ss: Replace unixstat struct by new sockstat struct)
Reported-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Since free(NULL) is a no-op, it is safe to remove unnecesary
if checks.

We forgot to include this patch somehow. So do it now.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>

After commit 8250bc9f ("ss: Unify inet sockets output") raw sockets
are displayed as udp because dgram_show_line() is used for both and
thus IPPROTO_UDP is used for both so proto_name() returns "udp".
Fix this by checking dg_proto which is set according to the caller of
dgram_show_line().
Reported-by: Miha Marolt <miham@beyondsemi.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

This patch replaces exits with returns in
ip route get command handling. This allows batching
of ip route get commands.

$cat route_get_batch.txt
route get 10.0.14.2
route get 12.0.14.2
route get 10.0.14.4

$ip -batch route_get_batch.txt
local 10.0.14.2 dev lo  src 10.0.14.2
    cache <local>
12.0.14.2 via 192.168.0.2 dev eth0  src 192.168.0.15
    cache
10.0.14.4 dev dummy0  src 10.0.14.2
    cache
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>

The build otherwise fails if libmnl does not directly live in a
standard search path.