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reqsk_queue_destroy() and reqsk_queue_unlink() should use
del_timer_sync() instead of del_timer() before calling reqsk_put(),
otherwise we could free a req still used by another cpu.
But before doing so, reqsk_queue_destroy() must release syn_wait_lock
spinlock or risk a dead lock, as reqsk_timer_handler() might
need to take this same spinlock from reqsk_queue_unlink() (called from
inet_csk_reqsk_queue_drop())
Fixes: fa76ce7328b2 ("inet: get rid of central tcp/dccp listener timer")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains five Netfilter fixes for your net tree,
they are:
1) Silence a warning on falling back to vmalloc(). Since 88eab472ec21, we can
easily hit this warning message, that gets users confused. So let's get rid
of it.
2) Recently when porting the template object allocation on top of kmalloc to
fix the netns dependencies between x_tables and conntrack, the error
checks where left unchanged. Remove IS_ERR() and check for NULL instead.
Patch from Dan Carpenter.
3) Don't ignore gfp_flags in the new nf_ct_tmpl_alloc() function, from
Joe Stringer.
4) Fix a crash due to NULL pointer dereference in ip6t_SYNPROXY, patch from
Phil Sutter.
5) The sequence number of the Syn+ack that is sent from SYNPROXY to clients is
not adjusted through our NAT infrastructure, as a result the client may
ignore this TCP packet and TCP flow hangs until the client probes us. Also
from Phil Sutter.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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When using a cluster of switches, some topologies will have an MDIO
bus per switch, not one for the whole cluster. Allow this to be
represented in the device tree, by adding an optional mii-bus property
at the switch level. The old platform_device method of instantiation
supports this already, so only the device tree binding needs extending
with an additional optional phandle.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Support for sharing GREPROTO_CISCO port was added so that
OVS gre port and kernel GRE devices can co-exist. After
flow-based tunneling patches OVS GRE protocol processing
is completely moved to ip_gre module. so there is no need
for GRE protocol hook. Following patch consolidates
GRE protocol related functions into ip_gre module.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Using GRE tunnel meta data collection feature, we can implement
OVS GRE vport. This patch removes all of the OVS
specific GRE code and make OVS use a ip_gre net_device.
Minimal GRE vport is kept to handle compatibility with
current userspace application.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Following patch create new tunnel flag which enable
tunnel metadata collection on given device.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This function will be used in gre and geneve vport implementations.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add an explicit neighbour table overflow message (ratelimited) and
statistic to make diagnosing neighbour table overflows tractable in
the wild.
Diagnosing a neighbour table overflow can be quite difficult in the wild
because there is no explicit dmesg logged. Callers to neighbour code
seem to use net_dbg_ratelimit when the neighbour call fails which means
the "base message" is not emitted and the callback suppressed messages
from the ratelimiting can end-up juxtaposed with unrelated messages.
Further, a forced garbage collection will increment a stat on each call
whether it was successful in freeing-up a table entry or not, so that
statistic is only a hint. So, add a net_info_ratelimited message and
explicit statistic to the neighbour code.
Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds the ability to toggle the vlan filtering support via
netlink. Since we're already running with rtnl in .changelink() we don't
need to take any additional locks.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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48ed7b26faa7 ("ipv6: reject locally assigned nexthop addresses") is too
strict; it rejects following corner-case:
ip -6 route add default via fe80::1:2:3 dev eth1
[ where fe80::1:2:3 is assigned to a local interface, but not eth1 ]
Fix this by restricting search to given device if nh is linklocal.
Joint work with Hannes Frederic Sowa.
Fixes: 48ed7b26faa7 ("ipv6: reject locally assigned nexthop addresses")
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, when trying to connect to already paired device that just
rotated its RPA MAC address, old address would be used and connection
would fail. In order to fix that, kernel must scan and receive
advertisement with fresh RPA before connecting.
This patch enables new connection establishment procedure. Instead of just
sending HCI_OP_LE_CREATE_CONN to controller, "connect" will add device to
kernel whitelist and start scan. If advertisement is received, it'll be
compared against whitelist and then trigger connection if it matches.
That fixes mentioned reconnect issue for already paired devices. It also
make whole connection procedure more robust. We can try to connect to
multiple devices at same time now, even though controller allow only one.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Currently, when trying to connect to already paired device that just
rotated its RPA MAC address, old address would be used and connection
would fail. In order to fix that, kernel must scan and receive
advertisement with fresh RPA before connecting.
This patch makes sure that when new procedure is in use, and we're stuck
in scan phase because no advertisement was received and timeout happened,
or app decided to close socket, scan whitelist gets properly cleaned up.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Currently, when trying to connect to already paired device that just
rotated its RPA MAC address, old address would be used and connection
would fail. In order to fix that, kernel must scan and receive
advertisement with fresh RPA before connecting.
This path makes sure that after advertisement is received from device that
we try to connect to, it is properly handled in check_pending_le_conn and
trigger connect attempt.
It also modifies hci_le_connect to make sure that connect attempt will be
properly continued.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Currently, when trying to connect to already paired device that just
rotated its RPA MAC address, old address would be used and connection
would fail. In order to fix that, kernel must scan and receive
advertisement with fresh RPA before connecting.
This patch adds hci_connect_le_scan with dependencies, new method that
will be used to connect to remote LE devices. Instead of just sending
connect request, it adds a device to whitelist. Later patches will make
use of this whitelist to send conenct request when advertisement is
received, and properly handle timeouts.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch adds hci_lookup_le_connect method, that will be used to check
wether outgoing le connection attempt is in progress.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch fixes the error handling for lowpan_xmit_fragment by replace
"-PTR_ERR" to "PTR_ERR". PTR_ERR returns already a negative errno code.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch introduce a new mib entry which isn't part of 802.15.4 but
useful as default behaviour to set the ack request bit or not if we
don't know if the ack request bit should set. This is currently used for
stacks like IEEE 802.15.4 6LoWPAN.
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch changes the default minimum value of frame_retries to 0 and
changes the frame_retries default value to 3 which is also 802.15.4
default.
We don't use the frame_retries "-1" value as indicator for no-aret mode
anymore, instead we checking on the ack request bit inside the 802.15.4
frame control field. This allows a acknowledge handling per frame. This
checking is done by transceiver or inside xmit callback of driver layer.
If a transceiver doesn't support ARET handling the transmit
functionality ignores ack frames then, which isn't well but should not
effect anything of current functionality.
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch removes several checks if a value is really changed. This
makes only sense if we have another layer call e.g. calling the
driver_ops which is done by callbacks like "set_channel".
For MAC settings which need to be set by phy registers (if the phy
supports that handling) this is set by doing an interface up currently
and are not direct driver_ops calls, so we remove the checks from these
configuration callbacks.
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Suggested-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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If we currently change the mac address inside the wpan interface while
we have a lowpan interface on top of the wpan interface, the mac address
setting doesn't reach the lowpan interface. The effect would be that the
IPv6 lowpan interface has the old SLAAC address and isn't working
anymore because the lowpan interface use in internal mechanism sometimes
dev->addr which is the old mac address of the wpan interface.
This patch checks if a wpan interface belongs to lowpan interface, if
yes then we need to check if the lowpan interface is down and change the
mac address also at the lowpan interface. When the lowpan interface will
be set up afterwards, it will use the correct SLAAC address which based
on the updated mac address setting.
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Tested-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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We currently supports multiple lowpan interfaces per wpan interface. I
never saw any use case into such functionality. We drop this feature now
because it's much easier do deal with address changes inside the under
laying wpan interface.
This patch removes the multiple lowpan interface and adds a lowpan_dev
netdev pointer into the wpan_dev, if this pointer isn't null the wpan
interface belongs to the assigned lowpan interface.
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Tested-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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The lowpan_fetch_skb function is used to fetch the first byte,
which also increments the data pointer in skb structure,
making subsequent array lookup of byte 0 actually being byte 1.
To decompress the first byte of the Flow Label when the TF flag is
set to 0x01, the second half of the first byte is needed.
The patch fixes the extraction of the Flow Label field.
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Lukasz Duda <lukasz.duda@nordicsemi.no>
Signed-off-by: Glenn Ruben Bakke <glenn.ruben.bakke@nordicsemi.no>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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We should be passing the pointer itself instead of the address of the
pointer.
This was a copy and paste bug when we replaced the calls to
hci_send_cmd(). Originally, the arguments were "len, cp" but we
overwrote them with "sizeof(cp), &cp" by mistake.
Fixes: b3d3914006a0 ('Bluetooth: Move amp assoc read/write completed callback to amp.c')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Linus reports the following deadlock on rtnl_mutex; triggered only
once so far (extract):
[12236.694209] NetworkManager D 0000000000013b80 0 1047 1 0x00000000
[12236.694218] ffff88003f902640 0000000000000000 ffffffff815d15a9 0000000000000018
[12236.694224] ffff880119538000 ffff88003f902640 ffffffff81a8ff84 00000000ffffffff
[12236.694230] ffffffff81a8ff88 ffff880119c47f00 ffffffff815d133a ffffffff81a8ff80
[12236.694235] Call Trace:
[12236.694250] [<ffffffff815d15a9>] ? schedule_preempt_disabled+0x9/0x10
[12236.694257] [<ffffffff815d133a>] ? schedule+0x2a/0x70
[12236.694263] [<ffffffff815d15a9>] ? schedule_preempt_disabled+0x9/0x10
[12236.694271] [<ffffffff815d2c3f>] ? __mutex_lock_slowpath+0x7f/0xf0
[12236.694280] [<ffffffff815d2cc6>] ? mutex_lock+0x16/0x30
[12236.694291] [<ffffffff814f1f90>] ? rtnetlink_rcv+0x10/0x30
[12236.694299] [<ffffffff8150ce3b>] ? netlink_unicast+0xfb/0x180
[12236.694309] [<ffffffff814f5ad3>] ? rtnl_getlink+0x113/0x190
[12236.694319] [<ffffffff814f202a>] ? rtnetlink_rcv_msg+0x7a/0x210
[12236.694331] [<ffffffff8124565c>] ? sock_has_perm+0x5c/0x70
[12236.694339] [<ffffffff814f1fb0>] ? rtnetlink_rcv+0x30/0x30
[12236.694346] [<ffffffff8150d62c>] ? netlink_rcv_skb+0x9c/0xc0
[12236.694354] [<ffffffff814f1f9f>] ? rtnetlink_rcv+0x1f/0x30
[12236.694360] [<ffffffff8150ce3b>] ? netlink_unicast+0xfb/0x180
[12236.694367] [<ffffffff8150d344>] ? netlink_sendmsg+0x484/0x5d0
[12236.694376] [<ffffffff810a236f>] ? __wake_up+0x2f/0x50
[12236.694387] [<ffffffff814cad23>] ? sock_sendmsg+0x33/0x40
[12236.694396] [<ffffffff814cb05e>] ? ___sys_sendmsg+0x22e/0x240
[12236.694405] [<ffffffff814cab75>] ? ___sys_recvmsg+0x135/0x1a0
[12236.694415] [<ffffffff811a9d12>] ? eventfd_write+0x82/0x210
[12236.694423] [<ffffffff811a0f9e>] ? fsnotify+0x32e/0x4c0
[12236.694429] [<ffffffff8108cb70>] ? wake_up_q+0x60/0x60
[12236.694434] [<ffffffff814cba09>] ? __sys_sendmsg+0x39/0x70
[12236.694440] [<ffffffff815d4797>] ? entry_SYSCALL_64_fastpath+0x12/0x6a
It seems so far plausible that the recursive call into rtnetlink_rcv()
looks suspicious. One way, where this could trigger is that the senders
NETLINK_CB(skb).portid was wrongly 0 (which is rtnetlink socket), so
the rtnl_getlink() request's answer would be sent to the kernel instead
to the actual user process, thus grabbing rtnl_mutex() twice.
One theory would be that netlink_autobind() triggered via netlink_sendmsg()
internally overwrites the -EBUSY error to 0, but where it is wrongly
originating from __netlink_insert() instead. That would reset the
socket's portid to 0, which is then filled into NETLINK_CB(skb).portid
later on. As commit d470e3b483dc ("[NETLINK]: Fix two socket hashing bugs.")
also puts it, -EBUSY should not be propagated from netlink_insert().
It looks like it's very unlikely to reproduce. We need to trigger the
rhashtable_insert_rehash() handler under a situation where rehashing
currently occurs (one /rare/ way would be to hit ht->elasticity limits
while not filled enough to expand the hashtable, but that would rather
require a specifically crafted bind() sequence with knowledge about
destination slots, seems unlikely). It probably makes sense to guard
__netlink_insert() in any case and remap that error. It was suggested
that EOVERFLOW might be better than an already overloaded ENOMEM.
Reference: http://thread.gmane.org/gmane.linux.network/372676
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Upon receipt of SYNACK from the server, ipt_SYNPROXY first sends back an ACK to
finish the server handshake, then calls nf_ct_seqadj_init() to initiate
sequence number adjustment of forwarded packets to the client and finally sends
a window update to the client to unblock it's TX queue.
Since synproxy_send_client_ack() does not set synproxy_send_tcp()'s nfct
parameter, no sequence number adjustment happens and the client receives the
window update with incorrect sequence number. Depending on client TCP
implementation, this leads to a significant delay (until a window probe is
being sent).
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This happens when networking namespaces are enabled.
Suggested-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch fix double word "the the" in
Documentation/DocBook/networking/API-eth-get-headlen.html
Documentation/DocBook/networking/netdev.html
Documentation/DocBook/networking.xml
These files are generated from comment in source,
so I have to fix comment in net/ethernet/eth.c.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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RFC 4182 s2 states that if an IPv4 Explicit NULL label is the only
label on the stack, then after popping the resulting packet must be
treated as a IPv4 packet and forwarded based on the IPv4 header. The
same is true for IPv6 Explicit NULL with an IPv6 packet following.
Therefore, when installing the IPv4/IPv6 Explicit NULL label routes,
add an attribute that specifies the expected payload type for use at
forwarding time for determining the type of the encapsulated packet
instead of inspecting the first nibble of the packet.
Signed-off-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove the fdb_{add,del,getnext} function pointer in favor of new
port_fdb_{add,del,getnext}.
Implement the switchdev_port_obj_{add,del,dump} functions in DSA to
support the SWITCHDEV_OBJ_PORT_FDB objects.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds a is_static boolean to the switchdev_obj_fdb structure,
in order to set the ndm_state to either NUD_NOARP or NUD_REACHABLE.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The address in the switchdev_obj_fdb structure is currently represented
as a pointer. Replacing it for a 6-byte array allows switchdev to carry
addresses directly read from hardware registers, not stored by the
switch chip driver (as in Rocker).
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fix a double word "the the"
in Documentation/DocBook/networking.xml and
Documentation/DocBook/networking/API-Wimax-report-rfkill-sw.html.
These files are generated from comment in source, so I had to
fix the typo in net/wimax/io-rfkill.c
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a race condition in store_rps_map that allows jump label
count in rps_needed to go below zero. This can happen when
concurrently attempting to set and a clear map.
Scenario:
1. rps_needed count is zero
2. New map is assigned by setting thread, but rps_needed count _not_ yet
incremented (rps_needed count still zero)
2. Map is cleared by second thread, old_map set to that just assigned
3. Second thread performs static_key_slow_dec, rps_needed count now goes
negative
Fix is to increment or decrement rps_needed under the spinlock.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Antonio Quartulli says:
====================
Included changes:
- prevent DAT from replying on behalf of local clients and confuse L2
bridges
- fix crash on double list removal of TT objects (tt_local_entry)
- fix crash due to missing NULL checks
- initialize bw values for new GWs objects to prevent memory leak
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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When sampling rate is 1, the sampling probability is UINT32_MAX. The packet
should be sampled even the prandom32() generate the number of UINT32_MAX.
And none packet need be sampled when the probability is 0.
Signed-off-by: Wenyu Zhang <wenyuz@vmware.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IFLA_VXLAN_FLOWBASED is useless without IFLA_VXLAN_COLLECT_METADATA,
so combine them into single IFLA_VXLAN_COLLECT_METADATA flag.
'flowbased' doesn't convey real meaning of the vxlan tunnel mode.
This mode can be used by routing, tc+bpf and ovs.
Only ovs is strictly flow based, so 'collect metadata' is a better
name for this tunnel mode.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Register pernet subsys init/stop functions that will set up
and tear down per-net RDS-TCP listen endpoints. Unregister
pernet subusys functions on 'modprobe -r' to clean up these
end points.
Enable keepalive on both accept and connect socket endpoints.
The keepalive timer expiration will ensure that client socket
endpoints will be removed as appropriate from the netns when
an interface is removed from a namespace.
Register a device notifier callback that will clean up all
sockets (and thus avoid the need to wait for keepalive timeout)
when the loopback device is unregistered from the netns indicating
that the netns is getting deleted.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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init_net
Open the sockets calling sock_create_kern() with the correct struct net
pointer, and use that struct net pointer when verifying the
address passed to rds_bind().
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Move the nfnl_acct_list into the network namespace, initialize
and destroy it per namespace
- Keep track of refcnt on nfacct objects, the old logic does not
longer work with a per namespace list
- Adjust xt_nfacct to pass the namespace when registring objects
Signed-off-by: Andreas Schultz <aschultz@tpip.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds a new NFTA_LIMIT_TYPE netlink attribute to indicate the type of
limiting.
Contrary to per-packet limiting, the cost is calculated from the packet path
since this depends on the packet length.
The burst attribute indicates the number of bytes in which the rate can be
exceeded.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The cost per packet can be calculated from the control plane path since this
doesn't ever change.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds the burst parameter. This burst indicates the number of packets
that can exceed the limit.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch prepares the introduction of per-byte limiting.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Rework the limit expression to use a token-based limiting approach that refills
the bucket gradually. The tokens are calculated at nanosecond granularity
instead jiffies to improve precision.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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To prepare introduction of bytes ratelimit support.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This new expression uses the nf_dup engine to clone packets to a given gateway.
Unlike xt_TEE, we use an index to indicate output interface which should be
fine at this stage.
Moreover, change to the preemtion-safe this_cpu_read(nf_skb_duplicated) from
nf_dup_ipv{4,6} to silence a lockdep splat.
Based on the original tee expression from Arturo Borrero Gonzalez, although
this patch has diverted quite a bit from this initial effort due to the
change to support maps.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Extracted from the xtables TEE target. This creates two new modules for IPv4
and IPv6 that are shared between the TEE target and the new nf_tables dup
expressions.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Use IS_ENABLED(CONFIG_NF_CONNTRACK) instead.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch converts the existing seqlock to per-cpu counters.
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Suggested-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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and policy
The attribute size wasn't accounted for in the get_slave_size() callback
(br_port_get_slave_size) when it was introduced, so fix it now. Also add
a policy entry for it in br_port_policy.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Fixes: 842a9ae08a25 ("bridge: Extend Proxy ARP design to allow optional rules for Wi-Fi")
Signed-off-by: David S. Miller <davem@davemloft.net>
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