After the patch, the most minimal command to load an eBPF action
for late binding with auto index selection through tc is:

  tc actions add action bpf obj prog.o

We already set TC_ACT_PIPE in tc as default opcode, so if nothing
further has been specified, just use it. Also, allow "ok" next to
"pass" for matching cmdline on TC_ACT_OK.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add ifindex to dump request when filtering by device. If the kernel
supports it adding the index to the request limits the amount of data
the kernel pushes to userpsace.

The feature exists in userspace already, so no need to warn the user
if kernel side support does not exist. Using the kernel side filter
makes the request more efficient.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>

When having optional classid, most minimal command can be sth
like:

  tc filter add dev foo parent X: bpf obj prog.o

Therefore, adapt the code so that a next argument will not be
enforced as the case currently.

Also, minor cleanup on the classid, where we should rather
have used addattr32(), and add flags for exec configuration,
for example (using short notation):

  tc filter add dev foo parent X: bpf da obj prog.o
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>

Add support for filtering neighbor dumps by master device. Kernel side
support provided by commit 21fdd092acc7. Since the feature is not
available in older kernels the user is given a warning message if the
kernel does not support the request.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>

This patch documents bridge and ip -timestamp option
Signed-off-by: Satish Ashok <sashok@cumulusnetworks.com>

This patch adds support to batch bridge commands.
Follows ip batch code.
Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Christophe Gouault <christophe.gouault@6wind.com>

Support quoting strings with " or ' in an iproute2 batch file.

Enables to configure empty crypto keys (for ESP-null) or keys with
spaces:

    xfrm state add src 1.1.1.1 dst 2.2.2.2 proto ah spi 0x1 \
        mode tunnel auth hmac(sha1) "r4ezR/@kd6'749f2 6zf$"

    xfrm state add src 5.5.5.5 dst 2.2.2.2 proto esp spi 0x2 \
        mode tunnel enc cipher_null ""
Signed-off-by: Christophe Gouault <christophe.gouault@6wind.com>

Device names that match "help" or a prefix thereof should be allowed anywhere
a device name can be used. Note that a suitable keyword ("dev" or "name", the
latter for "ip tunnel") has to be used in these cases to resolve ambiguities.
Signed-off-by: Christoph Schulz <develop@kristov.de>
Reported-by: Leonhard Preis <leonhard@pre.is>
Reported-by: Wilhelm Wijkander <lists@0x5e.se>

This patch adds man pages for the TIPC tool. There is one main page
and one page for each top level sub-command. These pages mainly aims
to help a user of the tipc tool. In addition to this they describe
a bit about what TIPC is and some of its features as a protocol.
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>

linux-3.19 fq packet scheduler got a new attribute, controlling
number of 'flows' holding packets not attached to a socket
(forwarding usage)

kernel commit is 06eb395fa9856b5a87cf7d80baee2a0ed3cdb9d7
("pkt_sched: fq: better control of DDOS traffic")

This patch adds corresponding code to tc command.

tc qd replace dev eth0 root fq orphan_mask 511
Signed-off-by: Eric Dumazet <edumazet@google.com>

Commit 1527a17e introduced a change where the second of two ssfilter_parse()
calls in ss.c was moved outside of a conditional block (ss.c: ~3575). This
commit enabled the parsing of services, such as 'sport = :ssh', but
inadvertently broke the '-F' file-based filtering:

Partially based on kernel Kconfig help text, code comments and
git commit messages from Eric Dumazet.

Joint work with Phil Sutter.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>

Support -timestamp and -tshort options for tc monitor like ip monitor.

# tc -tshort monitor
[2015-09-23T16:39:11.260555] qdisc fq 8003: dev eth0 root refcnt 2 limit
10000p flow_limit 100p buckets 1024 quantum 3028 initial_quantum 15140
refill_delay 40.0ms
Signed-off-by: Eric Dumazet <edumazet@google.com>

The brief format does not honer the master and type filters:

$ ip link show master vrf-mgmt
7: dummy0: <BROADCAST,NOARP,SLAVE> mtu 1500 qdisc noop master vrf-mgmt state DOWN mode DEFAULT group default qlen 1000
    link/ether 66:39:cc:2b:e9:bd brd ff:ff:ff:ff:ff:ff

$ ip -br link show master vrf-mgmt
lo               UNKNOWN        00:00:00:00:00:00 <LOOPBACK,UP,LOWER_UP>
eth0             UP             08:00:27:de:14:c8 <BROADCAST,MULTICAST,UP,LOWER_UP>
eth1             UP             08:00:27:87:02:f1 <BROADCAST,MULTICAST,UP,LOWER_UP>
eth2             UP             08:00:27:61:1e:fd <BROADCAST,MULTICAST,UP,LOWER_UP>
vrf-blue         UNKNOWN        a6:3f:09:34:7e:74 <NOARP,MASTER,UP,LOWER_UP>
vrf-red          DOWN           fe:a2:2d:e1:bc:ac <NOARP,MASTER>
dummy0           DOWN           66:39:cc:2b:e9:bd <BROADCAST,NOARP,SLAVE>
dummy1           DOWN           4a:4f:13:91:64:b1 <BROADCAST,NOARP,SLAVE>
dummy2           DOWN           b2:4f:b6:cd:bd:a6 <BROADCAST,NOARP>
dummy3           DOWN           1e:06:3d:40:b8:c2 <BROADCAST,NOARP,SLAVE>
vrf-mgmt         DOWN           ce:b2:74:41:21:df <NOARP,MASTER>

With this patch the expected output is shown:

$ ip -br link show master vrf-mgmt
dummy0           DOWN           66:39:cc:2b:e9:bd <BROADCAST,NOARP,SLAVE>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>

Currently 'ip route get' does not show the table the lookup result comes
from and prior to kernel commit c36ba6603a11 the response from the kernel
was hardcoded to the main table. From the discussion this appears to be
a leftover from the route cache where the cached entry lost the table id
and so the result was hardcoded to main table.

c36ba6603a11 added the RTM_F_LOOKUP_TABLE flag to maintain that behavior
but to allow new tools to ask for the actual table id for the lookup.
This patch adds that flag to ip route get request and if the result is
not the main table shows the table id.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>

Currently when we specify AF_INET6 when it is disabled, we will get
all routes.

For example, we can boot kernel with ipv6.disable=1 and try to get ipv6
routes:
$ ip -6 route show
default via 192.168.122.1 dev eth0  proto static  metric 100
192.168.122.0/24 dev eth0  proto kernel  scope link  src 192.168.122.141  metric 100

Here are ipv4 routes and this is unexpected behaviour.
Signed-off-by: Andrew Vagin <avagin@openvz.org>

Changed HRB -> HTB.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Acked-by: Jeremy Harris <jgh@redhat.com>

Code to parse and export this tuneable via netlink is already present in
sched_fq.c of the kernel, so not making it accessible for users would be
a waste of resources.
Signed-off-by: Phil Sutter <phil@nwl.cc>

Some qdiscs still lack a manpage, so listing them here is the only way
for a user to get to know them. For the others, this serves as an
overview of what is there.

Content was taken over from the dedicated manpage if available and
suitable, so there is definitely room for improvement at least by
adjusting it more to the context in which it is now. In case there
wasn't appropriate wording available, I tried to identify key aspects of
the given qdisc.
Signed-off-by: Phil Sutter <phil@nwl.cc>

Commit 05325552 ('Support "ip link add help" for rtnl_link API') added a
check for specified help parameter. Though due to the place where it has
been added to, it is not possible anymore to force a given parameter to
be interpreted as interface name by prefixing it with 'dev '. Fix this
by forcing whatever follows 'dev' to be presumed as interface name.
Signed-off-by: Phil Sutter <phil@nwl.cc>

While there is not much to explain about this rather trivial shell
script, having a manpage for it serves as good point of reference for
users wondering what it might be for.
Signed-off-by: Phil Sutter <phil@nwl.cc>

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

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

This patch follows the changes of commit 4d98ab00 ("Fix FSF address in
file headers"), fixing file headers added after it.
Signed-off-by: Phil Sutter <phil@nwl.cc>

When fixing the BNF syntax error, I overlooked that 'ip address help'
prints a more correct synopsis. This patch aligns them.

Fixes: 715296b8 ("ip-address.8.in: fix BNF syntax error")
Signed-off-by: Phil Sutter <phil@nwl.cc>

Since 'ip help' lists it, it should be described in ip.8 as well.
Signed-off-by: Phil Sutter <phil@nwl.cc>

Add check for Berkeley DB header & lib before compile arpd util.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Signed-off-by: Arthur Gautier <baloo@gandi.net>

After cookie there was no newline.

Hi:

I found a formatting bug in the 4.1.1 ss command. The following line was
incorrectly output due to passing a negative length to printf() when
displaying the local address. In this instance hostapd does a "bind to
device" on cdreth0 and then does a udp "in address any" port 67 bind.
Please note the whitespace between the '*' and ' %cdreth0:67'

    'udp UNCONN 0 0 ** %cdreth0:67* *:* users:(("hostapd",pid=19241,fd=5))'

Attached is my patch for the bug fix, it might be prudent to add more
guard code looking for negative length format codes.

Sincerely, Mike

Before:
kda@vfirst ~/devel/iproute2 $ ./ip/ip route flush cache
Cannot open "/proc/sys/net/ipv4/route/flush"

After:
kda@vfirst ~/devel/iproute2/ip $ ./ip route flush cache
Cannot open "/proc/sys/net/ipv4/route/flush": Permission denied
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>

This patch adds support for bridge vlan_protocol.

Example:
$ ip link set br0 type bridge vlan_protocol 802.1ad
$ ip -d link show br0
4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP mode DEFAULT group default qlen 1000
    link/ether 44:37:e6:ab:cd:ef brd ff:ff:ff:ff:ff:ff promiscuity 0
    bridge forward_delay 0 hello_time 200 max_age 2000 ageing_time 30000
stp_state 0 priority 32768 vlan_filtering 0 vlan_protocol 802.1ad
addrgenmode eui64
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>