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

Pull networking update from David Miller:

 1) Checkpoint/restarted TCP sockets now can properly propagate the TCP
    timestamp offset.  From Andrey Vagin.

 2) VMWARE VM VSOCK layer, from Andy King.

 3) Much improved support for virtual functions and SR-IOV in bnx2x,
    from Ariel ELior.

 4) All protocols on ipv4 and ipv6 are now network namespace aware, and
    all the compatability checks for initial-namespace-only protocols is
    removed.  Thanks to Tom Parkin for helping deal with the last major
    holdout, L2TP.

 5) IPV6 support in netpoll and network namespace support in pktgen,
    from Cong Wang.

 6) Multiple Registration Protocol (MRP) and Multiple VLAN Registration
    Protocol (MVRP) support, from David Ward.

 7) Compute packet lengths more accurately in the packet scheduler, from
    Eric Dumazet.

 8) Use per-task page fragment allocator in skb_append_datato_frags(),
    also from Eric Dumazet.

 9) Add support for connection tracking labels in netfilter, from
    Florian Westphal.

10) Fix default multicast group joining on ipv6, and add anti-spoofing
    checks to 6to4 and 6rd.  From Hannes Frederic Sowa.

11) Make ipv4/ipv6 fragmentation memory limits more reasonable in modern
    times, rearrange inet frag datastructures for better cacheline
    locality, and move more operations outside of locking.  From Jesper
    Dangaard Brouer.

12) Instead of strict master <--> slave relationships, allow arbitrary
    scenerios with "upper device lists".  From Jiri Pirko.

13) Improve rate limiting accuracy in TBF and act_police, also from Jiri
    Pirko.

14) Add a BPF filter netfilter match target, from Willem de Bruijn.

15) Orphan and delete a bunch of pre-historic networking drivers from
    Paul Gortmaker.

16) Add TSO support for GRE tunnels, from Pravin B SHelar.  Although
    this still needs some minor bug fixing before it's %100 correct in
    all cases.

17) Handle unresolved IPSEC states like ARP, with a resolution packet
    queue.  From Steffen Klassert.

18) Remove TCP Appropriate Byte Count support (ABC), from Stephen
    Hemminger.  This was long overdue.

19) Support SO_REUSEPORT, from Tom Herbert.

20) Allow locking a socket BPF filter, so that it cannot change after a
    process drops capabilities.

21) Add VLAN filtering to bridge, from Vlad Yasevich.

22) Bring ipv6 on-par with ipv4 and do not cache neighbour entries in
    the ipv6 routes, from YOSHIFUJI Hideaki.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1538 commits)
  ipv6: fix race condition regarding dst->expires and dst->from.
  net: fix a wrong assignment in skb_split()
  ip_gre: remove an extra dst_release()
  ppp: set qdisc_tx_busylock to avoid LOCKDEP splat
  atl1c: restore buffer state
  net: fix a build failure when !CONFIG_PROC_FS
  net: ipv4: fix waring -Wunused-variable
  net: proc: fix build failed when procfs is not configured
  Revert "xen: netback: remove redundant xenvif_put"
  net: move procfs code to net/core/net-procfs.c
  qmi_wwan, cdc-ether: add ADU960S
  bonding: set sysfs device_type to 'bond'
  bonding: fix bond_release_all inconsistencies
  b44: use netdev_alloc_skb_ip_align()
  xen: netback: remove redundant xenvif_put
  net: fec: Do a sanity check on the gpio number
  ip_gre: propogate target device GSO capability to the tunnel device
  ip_gre: allow CSUM capable devices to handle packets
  bonding: Fix initialize after use for 3ad machine state spinlock
  bonding: Fix race condition between bond_enslave() and bond_3ad_update_lacp_rate()
  ...

1 files changed, 176 insertions, 0 deletions

diff --git a/Documentation/networking/nf_conntrack-sysctl.txt b/Documentation/networking/nf_conntrack-sysctl.txt
new file mode 100644
index 00000000000..70da5086153
--- /dev/null
+++ b/Documentation/networking/nf_conntrack-sysctl.txt
@@ -0,0 +1,176 @@
+/proc/sys/net/netfilter/nf_conntrack_* Variables:
+
+nf_conntrack_acct - BOOLEAN
+	0 - disabled (default)
+	not 0 - enabled
+
+	Enable connection tracking flow accounting. 64-bit byte and packet
+	counters per flow are added.
+
+nf_conntrack_buckets - INTEGER (read-only)
+	Size of hash table. If not specified as parameter during module
+	loading, the default size is calculated by dividing total memory
+	by 16384 to determine the number of buckets but the hash table will
+	never have fewer than 32 or more than 16384 buckets.
+
+nf_conntrack_checksum - BOOLEAN
+	0 - disabled
+	not 0 - enabled (default)
+
+	Verify checksum of incoming packets. Packets with bad checksums are
+	in INVALID state. If this is enabled, such packets will not be
+	considered for connection tracking.
+
+nf_conntrack_count - INTEGER (read-only)
+	Number of currently allocated flow entries.
+
+nf_conntrack_events - BOOLEAN
+	0 - disabled
+	not 0 - enabled (default)
+
+	If this option is enabled, the connection tracking code will
+	provide userspace with connection tracking events via ctnetlink.
+
+nf_conntrack_events_retry_timeout - INTEGER (seconds)
+	default 15
+
+	This option is only relevant when "reliable connection tracking
+	events" are used.  Normally, ctnetlink is "lossy", that is,
+	events are normally dropped when userspace listeners can't keep up.
+
+	Userspace can request "reliable event mode".  When this mode is
+	active, the conntrack will only be destroyed after the event was
+	delivered.  If event delivery fails, the kernel periodically
+	re-tries to send the event to userspace.
+
+	This is the maximum interval the kernel should use when re-trying
+	to deliver the destroy event.
+
+	A higher number means there will be fewer delivery retries and it
+	will take longer for a backlog to be processed.
+
+nf_conntrack_expect_max - INTEGER
+	Maximum size of expectation table.  Default value is
+	nf_conntrack_buckets / 256. Minimum is 1.
+
+nf_conntrack_frag6_high_thresh - INTEGER
+	default 262144
+
+	Maximum memory used to reassemble IPv6 fragments.  When
+	nf_conntrack_frag6_high_thresh bytes of memory is allocated for this
+	purpose, the fragment handler will toss packets until
+	nf_conntrack_frag6_low_thresh is reached.
+
+nf_conntrack_frag6_low_thresh - INTEGER
+	default 196608
+
+	See nf_conntrack_frag6_low_thresh
+
+nf_conntrack_frag6_timeout - INTEGER (seconds)
+	default 60
+
+	Time to keep an IPv6 fragment in memory.
+
+nf_conntrack_generic_timeout - INTEGER (seconds)
+	default 600
+
+	Default for generic timeout.  This refers to layer 4 unknown/unsupported
+	protocols.
+
+nf_conntrack_helper - BOOLEAN
+	0 - disabled
+	not 0 - enabled (default)
+
+	Enable automatic conntrack helper assignment.
+
+nf_conntrack_icmp_timeout - INTEGER (seconds)
+	default 30
+
+	Default for ICMP timeout.
+
+nf_conntrack_icmpv6_timeout - INTEGER (seconds)
+	default 30
+
+	Default for ICMP6 timeout.
+
+nf_conntrack_log_invalid - INTEGER
+	0   - disable (default)
+	1   - log ICMP packets
+	6   - log TCP packets
+	17  - log UDP packets
+	33  - log DCCP packets
+	41  - log ICMPv6 packets
+	136 - log UDPLITE packets
+	255 - log packets of any protocol
+
+	Log invalid packets of a type specified by value.
+
+nf_conntrack_max - INTEGER
+	Size of connection tracking table.  Default value is
+	nf_conntrack_buckets value * 4.
+
+nf_conntrack_tcp_be_liberal - BOOLEAN
+	0 - disabled (default)
+	not 0 - enabled
+
+	Be conservative in what you do, be liberal in what you accept from others.
+	If it's non-zero, we mark only out of window RST segments as INVALID.
+
+nf_conntrack_tcp_loose - BOOLEAN
+	0 - disabled
+	not 0 - enabled (default)
+
+	If it is set to zero, we disable picking up already established
+	connections.
+
+nf_conntrack_tcp_max_retrans - INTEGER
+	default 3
+
+	Maximum number of packets that can be retransmitted without
+	received an (acceptable) ACK from the destination. If this number
+	is reached, a shorter timer will be started.
+
+nf_conntrack_tcp_timeout_close - INTEGER (seconds)
+	default 10
+
+nf_conntrack_tcp_timeout_close_wait - INTEGER (seconds)
+	default 60
+
+nf_conntrack_tcp_timeout_established - INTEGER (seconds)
+	default 432000 (5 days)
+
+nf_conntrack_tcp_timeout_fin_wait - INTEGER (seconds)
+	default 120
+
+nf_conntrack_tcp_timeout_last_ack - INTEGER (seconds)
+	default 30
+
+nf_conntrack_tcp_timeout_max_retrans - INTEGER (seconds)
+	default 300
+
+nf_conntrack_tcp_timeout_syn_recv - INTEGER (seconds)
+	default 60
+
+nf_conntrack_tcp_timeout_syn_sent - INTEGER (seconds)
+	default 120
+
+nf_conntrack_tcp_timeout_time_wait - INTEGER (seconds)
+	default 120
+
+nf_conntrack_tcp_timeout_unacknowledged - INTEGER (seconds)
+	default 300
+
+nf_conntrack_timestamp - BOOLEAN
+	0 - disabled (default)
+	not 0 - enabled
+
+	Enable connection tracking flow timestamping.
+
+nf_conntrack_udp_timeout - INTEGER (seconds)
+	default 30
+
+nf_conntrack_udp_timeout_stream2 - INTEGER (seconds)
+	default 180
+
+	This extended timeout will be used in case there is an UDP stream
+	detected.