linux-toradex.git/net/ipv6/addrconf.c, branch v4.4.3

addrconf: always initialize sysctl table data

2015-12-22T22:00:58+00:00

When sysctl performs restrict writes, it allows to write from
a middle position of a sysctl file, which requires us to initialize
the table data before calling proc_dostring() for the write case.

Fixes: 3d1bec99320d ("ipv6: introduce secret_stable to ipv6_devconf")
Reported-by: Sasha Levin 
Acked-by: Hannes Frederic Sowa 
Tested-by: Sasha Levin 
Signed-off-by: Cong Wang 
Signed-off-by: David S. Miller

ipv6: automatically enable stable privacy mode if stable_secret set

2015-12-16T04:37:32+00:00

Bjørn reported that while we switch all interfaces to privacy stable mode
when setting the secret, we don't set this mode for new interfaces. This
does not make sense, so change this behaviour.

Fixes: 622c81d57b392cc ("ipv6: generation of stable privacy addresses for link-local and autoconf")
Reported-by: Bjørn Mork 
Cc: Bjørn Mork 
Signed-off-by: Hannes Frederic Sowa 
Signed-off-by: David S. Miller

ipv6: keep existing flags when setting IFA_F_OPTIMISTIC

2015-12-05T23:09:46+00:00

Commit 64236f3f3d74 ("ipv6: introduce IFA_F_STABLE_PRIVACY flag")
failed to update the setting of the IFA_F_OPTIMISTIC flag, causing
the IFA_F_STABLE_PRIVACY flag to be lost if IFA_F_OPTIMISTIC is set.

Cc: Erik Kline 
Cc: Fernando Gont 
Cc: Lorenzo Colitti 
Cc: YOSHIFUJI Hideaki/吉藤英明 
Cc: Hannes Frederic Sowa 
Fixes: 64236f3f3d74 ("ipv6: introduce IFA_F_STABLE_PRIVACY flag")
Signed-off-by: Bjørn Mork 
Acked-by: Hannes Frederic Sowa 
Signed-off-by: David S. Miller

Revert "ipv6: ndisc: inherit metadata dst when creating ndisc requests"

2015-12-01T20:07:59+00:00

This reverts commit ab450605b35caa768ca33e86db9403229bf42be4.

In IPv6, we cannot inherit the dst of the original dst. ndisc packets
are IPv6 packets and may take another route than the original packet.

This patch breaks the following scenario: a packet comes from eth0 and
is forwarded through vxlan1. The encapsulated packet triggers an NS
which cannot be sent because of the wrong route.

CC: Jiri Benc 
CC: Thomas Graf 
Signed-off-by: Nicolas Dichtel 
Signed-off-by: David S. Miller

ipv6: clean up dev_snmp6 proc entry when we fail to initialize inet6_dev

2015-11-05T04:49:48+00:00

In ipv6_add_dev, when addrconf_sysctl_register fails, we do not clean up
the dev_snmp6 entry that we have already registered for this device.
Call snmp6_unregister_dev in this case.

Fixes: a317a2f19da7d ("ipv6: fail early when creating netdev named all or default")
Reported-by: Dmitry Vyukov 
Signed-off-by: Sabrina Dubroca 
Signed-off-by: David S. Miller

ipv6: recreate ipv6 link-local addresses when increasing MTU over IPV6_MIN_MTU

2015-10-30T09:11:07+00:00

This change makes it so that we reinitialize the interface if the MTU is
increased back above IPV6_MIN_MTU and the interface is up.

Cc: Hannes Frederic Sowa 
Signed-off-by: Alexander Duyck 
Signed-off-by: David S. Miller

netlink: Rightsize IFLA_AF_SPEC size calculation

2015-10-22T02:15:20+00:00

if_nlmsg_size() overestimates the minimum allocation size of netlink
dump request (when called from rtnl_calcit()) or the size of the
message (when called from rtnl_getlink()). This is because
ext_filter_mask is not supported by rtnl_link_get_af_size() and
rtnl_link_get_size().

The over-estimation is significant when at least one netdev has many
VLANs configured (8 bytes for each configured VLAN).

This patch-set "rightsizes" the protocol specific attribute size
calculation by propagating ext_filter_mask to rtnl_link_get_af_size()
and adding this a argument to get_link_af_size op in rtnl_af_ops.

Bridge module already used filtering aware sizing for notifications.
br_get_link_af_size_filtered() is consistent with the modified
get_link_af_size op so it replaces br_get_link_af_size() in br_af_ops.
br_get_link_af_size() becomes unused and thus removed.

Signed-off-by: Ronen Arad 
Acked-by: Sridhar Samudrala 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2015-10-20T13:08:27+00:00

Conflicts:
	drivers/net/usb/asix_common.c
	net/ipv4/inet_connection_sock.c
	net/switchdev/switchdev.c

In the inet_connection_sock.c case the request socket hashing scheme
is completely different in net-next.

The other two conflicts were overlapping changes.

Signed-off-by: David S. Miller

net: Add VRF support to IPv6 stack

2015-10-13T11:55:08+00:00

As with IPv4 support for VRFs added to IPv6 stack by replacing hardcoded
table ids with possibly device specific ones and manipulating the oif in
the flowi6. The flow flags are used to skip oif compare in nexthop lookups
if the device is enslaved to a VRF via the L3 master device.

Signed-off-by: David Ahern 
Signed-off-by: David S. Miller

ipv6: gre: setup default multicast routes over PtP links

2015-10-11T12:30:43+00:00

GRE point-to-point interfaces should also support ipv6 multicast. Setting
up default multicast routes on interface creation was forgotten. Add it.

Bugzilla: 
Cc: Julien Muchembled 
Cc: Eric Dumazet 
Cc: Nicolas Dumazet 
Signed-off-by: Hannes Frederic Sowa 
Signed-off-by: David S. Miller