Document ip netns monitor.

Add a few senteces describing each command.  The manpage was looking
very scrawny.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

Sometimes "ip netns delete" fails because it can not delete the file a
network namespace was mounted on.  If this only happened when a
network namespace was really in use this would be fine, but today it
is possible to pin all network namespaces by simply having a long
running process started with "ip netns exec".

Every mount is copied when a network namespace is created so it is
impossible to prevent the mounts from getting into other mount
namespaces.  Modify all mounts in the files and subdirectories of
/var/run/netns to be shared mount points so that unmount events can
propogate, making it unlikely that "ip netns delete" will fail because
a directory is mounted in another mount namespace.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

Report the name of the network namespace that could not be
added.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

Ben Hutchings pointed out that the return value of do_netns is passed
to exit and the current convention of returning -1 for failure is
inconsitent with that reality.

Return EXIT_FAILURE instead of -1 and EXIT_SUCCESS instead of 0.  To make
it clear that the return codes are expected to be passed to exit.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

Some systems are now following the advice in
linux/Documentation/sharedsubtrees.txt and running with all mount
points shared between all mount namespaces by default.

After creating the mount namespace call mount on / with
MS_SLAVE|MS_REC to modify all mounts in the new mount namespace to
slave mounts if they are shared or private mounts otherwise.
Guarnateeing that changes to the mount namespace created with
"ip netns exec" don't propgate to other namespaces.
Reported-by: Petr Šabata <contyk@redhat.com>
Tested-by: Petr Šabata <contyk@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

Clang doesn't support the gcc extension for embeddeding flexible arrays
inside of structures.  Use the slightly more portable alloca().
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Fixes breakage with xtables API starting with version 1.4.10
Signed-off-by: Hasan Chowdhury <shemonc@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>

If an error occurs in a man subdir, make sure we propagate it back up.

While we're here, merge the duplicate rules into one.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

The man dir misses the man7 as a subdir which means none of the pages
get installed.

URL: https://bugs.gentoo.org/451166Reported-by: Marcin Mirosław <bug@mejor.pl>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Needed to build iproute2 with musl

Signed-off-by: Cong Wang <amwang@redhat.com>

bridge -> dev
group -> grp
Signed-off-by: Cong Wang <amwang@redhat.com>

This patch adds a flag to mdb entries so that we can distinguish
permanent entries with temporary ones.
Signed-off-by: Cong Wang <amwang@redhat.com>

Previous change wasn't needed, since merge of
	configure: move toolchain init to a function

Script has lots of shell functions but never indented properly.

Commit v3.7.0~10 caused the variable new PKG_CONFIG variable never
to be present at the time of calling make, leading to tc/m_xt.so
not linked with -lxtables (result from pkg-config xtables --libs),
that in turn leading to

tc: symbol lookup error: /usr/lib64/tc//m_xt.so: undefined symbol:
xtables_init_all

Fixing that.
Signed-off-by: Jan Engelhardt <jengelh@inai.de>

This matches the existing CC behavior.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

The lib makefile doesn't include Config which means it misses
setting up toolchain vars that it includes.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

The layout of this file uses functions to update Config.  Move the
toolchain logic to the same style to fix setting the vars in Config.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Sync with the current code.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

This patch add the documentation about 'ip netconf' command.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

  The new type 'vxlan' is added in the output of "ip link help"
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>

mroute was using /proc/net/ip_mr_[vif|cache] to display mroute entries. Hence,
only RT_TABLE_DEFAULT was displayed and only IPv4.
With rtnetlink, it is possible to display all tables for IPv4 and IPv6. The output
format is kept. Also, like before the patch, statistics are displayed when user specify
the '-s' argument.

The patch also adds the support of 'ip monitor mroute', which is now possible.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

INFO_SPEC already uses the term 'OPTIONS' and describe it.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

Now 'ip link' supports ipip, sit and ip6tnl.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

Sync with the current code.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

Use tabs instead of space when possible.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

Cc: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Cong Wang <amwang@redhat.com>

This patch implements `bridge monitor mdb`.

Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Cong Wang <amwang@redhat.com>

This patch implements:

	bridge mdb { add | del } dev DEV port PORT grp GROUP

Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Cong Wang <amwang@redhat.com>

This patch adds a new flag to iproute2 for vxlan devices to enable
DOVE features. It also adds support for L2 and L3 switch lookup miss
netlink messages to "ip monitor".

Changes since v2: fix merge conflict
Changes since v1:
	- split "dove" flag into separate feature flags:
		- "proxy" for ARP reduction
		- "rsc" for route short circuiting
		- "l2miss" for L2 switch miss notifications
		- "l3miss" for L3 switch miss notifications
Signed-off-by: David L Stevens <dlstevens@us.ibm.com>

This patch allows to manage ip tunnels via the interface ip link.
The syntax for parameters is the same that 'ip tunnel'.

It also allows to display tunnels parameters with 'ip -details link' or
'ip -details monitor link'.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

This patch allows to manage ip6 tunnels via the interface ip link.
The syntax for parameters is the same that 'ip -6 tunnel'.

It also allows to display tunnels parameters with 'ip -details link' or
'ip -details monitor link'.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

Example of the output:
$ ip monitor netconf&
[1] 24901
$ echo 0 > /proc/sys/net/ipv6/conf/all/forwarding
ipv6 dev lo forwarding off
ipv6 dev eth0 forwarding off
ipv6 all forwarding off
$ echo 1 > /proc/sys/net/ipv4/conf/eth0/forwarding
ipv4 dev eth0 forwarding on

$ ip -6 netconf
ipv6 all forwarding on mc_forwarding 0
$ ip netconf show dev eth0
ipv4 dev eth0 forwarding on rp_filter off mc_forwarding 1
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

Minor cleanup of original patch, made sure netconf.h matched
result of santized kernel headers

The debian package checking tool, lintian, spotted that the
tc ematch manpage seems to have an error in the specified section.
Signed-off-by: Andreas Henriksson <andreas@fatal.se>

Sample output:

	# ./bridge/bridge mdb show dev br0
	bridge br0 port eth1 group 224.8.8.9
	bridge br0 port eth0 group 224.8.8.8

	# ./bridge/bridge -d mdb show dev br0
	bridge br0 port eth1 group 224.8.8.9
	bridge br0 port eth0 group 224.8.8.8
	router ports on br0: eth0
Signed-off-by: Cong Wang <amwang@redhat.com>

Since system may not have upto date kernel headers, keep if_bridge.h
in set of exported headers used to build iproute.

Sanitized headers from net-next