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2013-08-29net: packet: use reciprocal_divide in fanout_demux_hashDaniel Borkmann1-1/+1
Instead of hard-coding reciprocal_divide function, use the inline function from reciprocal_div.h. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: packet: add randomized fanout schedulerDaniel Borkmann2-1/+13
We currently allow for different fanout scheduling policies in pf_packet such as scheduling by skb's rxhash, round-robin, by cpu, and rollover. Also allow for a random, equidistributed selection of the socket from the fanout process group. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29sh_eth: no need to call ether_setup()Sergei Shtylyov1-3/+0
There's no need to call ether_setup() in the driver since prior alloc_etherdev() call already arranges for it. Suggested-by: Denis Kirjanov <kda@linux-powerpc.org> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bonding: pr_debug instead of pr_warn in bond_arp_send_allVeaceslav Falico1-8/+6
They're simply annoying and will spam dmesg constantly if we hit them, so convert to pr_debug so that we still can access them in case of debugging. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bonding: remove vlan_list/current_alb_vlanVeaceslav Falico4-143/+2
Currently there are no real users of vlan_list/current_alb_vlan, only the helpers which maintain them, so remove them. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bonding: make alb_send_learning_packets() use upper dev listVeaceslav Falico2-19/+11
Currently, if there are vlans on top of bond, alb_send_learning_packets() will never send LPs from the bond itself (i.e. untagged), which might leave untagged clients unupdated. Also, the 'circular vlan' logic (i.e. update only MAX_LP_BURST vlans at a time, and save the last vlan for the next update) is really suboptimal - in case of lots of vlans it will take a lot of time to update every vlan. It is also never called in any hot path and sends only a few small packets - thus the optimization by itself is useless. So remove the whole current_alb_vlan/MAX_LP_BURST logic from alb_send_learning_packets(). Instead, we'll first send a packet untagged and then traverse the upper dev list, sending a tagged packet for each vlan found. Also, remove the MAX_LP_BURST define - we already don't need it. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bonding: split alb_send_learning_packets()Veaceslav Falico1-24/+35
Create alb_send_lp_vid(), which will handle the skb/lp creation, vlan tagging and sending, and use it in alb_send_learning_packets(). This way all the logic remains in alb_send_learning_packets(), which becomes a lot more cleaner and easier to understand. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bonding: use vlan_uses_dev() in __bond_release_one()Veaceslav Falico1-1/+1
We always hold the rtnl_lock() in __bond_release_one(), so use vlan_uses_dev() instead of bond_vlan_used(). CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bonding: convert bond_has_this_ip() to use upper devicesVeaceslav Falico1-12/+13
Currently, bond_has_this_ip() is aware only of vlan upper devices, and thus will return false if the address is associated with the upper bridge or any other device, and thus will break the arp logic. Fix this by using the upper device list. For every upper device we verify if the address associated with it is our address, and if yes - return true. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bonding: make bond_arp_send_all use upper device listVeaceslav Falico1-51/+51
Currently, bond_arp_send_all() is aware only of vlans, which breaks configurations like bond <- bridge (or any other 'upper' device) with IP (which is quite a common scenario for virt setups). To fix this we convert the bond_arp_send_all() to first verify if the rt device is the bond itself, and if not - to go through its list of upper vlans and their respectiv upper devices (if the vlan's upper device matches - tag the packet), if still not found - go through all of our upper list devices to see if any of them match the route device for the target. If the match is a vlan device - we also save its vlan_id and tag it in bond_arp_send(). Also, clean the function a bit to be more readable. CC: Vlad Yasevich <vyasevic@redhat.com> CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bonding: use netdev_upper list in bond_vlan_usedVeaceslav Falico1-1/+14
Convert bond_vlan_used() to traverse the upper device list to see if we have any vlans above us. It's protected by rcu, and in case we are holding rtnl_lock we should call vlan_uses_dev() instead - it's faster. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: add netdev_for_each_upper_dev_rcu()Veaceslav Falico1-0/+10
The new macro netdev_for_each_upper_dev_rcu(dev, upper, iter) iterates through the dev->upper_dev_list starting from the first element, using the netdev_upper_get_next_dev_rcu(dev, &iter). Must be called under RCU read lock. CC: "David S. Miller" <davem@davemloft.net> CC: Eric Dumazet <edumazet@google.com> CC: Jiri Pirko <jiri@resnulli.us> CC: Alexander Duyck <alexander.h.duyck@intel.com> CC: Cong Wang <amwang@redhat.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: add netdev_upper_get_next_dev_rcu(dev, iter)Veaceslav Falico1-0/+25
This function returns the next dev in the dev->upper_dev_list after the struct list_head **iter position, and updates *iter accordingly. Returns NULL if there are no devices left. Caller must hold RCU read lock. CC: "David S. Miller" <davem@davemloft.net> CC: Eric Dumazet <edumazet@google.com> CC: Jiri Pirko <jiri@resnulli.us> CC: Alexander Duyck <alexander.h.duyck@intel.com> CC: Cong Wang <amwang@redhat.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: remove search_list from netdev_adjacentVeaceslav Falico1-36/+1
We already don't need it cause we see every upper/lower device in the list already. CC: "David S. Miller" <davem@davemloft.net> CC: Eric Dumazet <edumazet@google.com> CC: Jiri Pirko <jiri@resnulli.us> CC: Alexander Duyck <alexander.h.duyck@intel.com> CC: Cong Wang <amwang@redhat.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: add lower_dev_list to net_device and make a full meshVeaceslav Falico2-27/+259
This patch adds lower_dev_list list_head to net_device, which is the same as upper_dev_list, only for lower devices, and begins to use it in the same way as the upper list. It also changes the way the whole adjacent device lists work - now they contain *all* of upper/lower devices, not only the first level. The first level devices are distinguished by the bool neighbour field in netdev_adjacent, also added by this patch. There are cases when a device can be added several times to the adjacent list, the simplest would be: /---- eth0.10 ---\ eth0- --- bond0 \---- eth0.20 ---/ where both bond0 and eth0 'see' each other in the adjacent lists two times. To avoid duplication of netdev_adjacent structures ref_nr is being kept as the number of times the device was added to the list. The 'full view' is achieved by adding, on link creation, all of the upper_dev's upper_dev_list devices as upper devices to all of the lower_dev's lower_dev_list devices (and to the lower_dev itself), and vice versa. On unlink they are removed using the same logic. I've tested it with thousands vlans/bonds/bridges, everything works ok and no observable lags even on a huge number of interfaces. Memory footprint for 128 devices interconnected with each other via both upper and lower (which is impossible, but for the comparison) lists would be: 128*128*2*sizeof(netdev_adjacent) = 1.5MB but in the real world we usualy have at most several devices with slaves and a lot of vlans, so the footprint will be much lower. CC: "David S. Miller" <davem@davemloft.net> CC: Eric Dumazet <edumazet@google.com> CC: Jiri Pirko <jiri@resnulli.us> CC: Alexander Duyck <alexander.h.duyck@intel.com> CC: Cong Wang <amwang@redhat.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: rename netdev_upper to netdev_adjacentVeaceslav Falico1-12/+12
Rename the structure to reflect the upcoming addition of lower_dev_list. CC: "David S. Miller" <davem@davemloft.net> CC: Eric Dumazet <edumazet@google.com> CC: Jiri Pirko <jiri@resnulli.us> CC: Alexander Duyck <alexander.h.duyck@intel.com> CC: Cong Wang <amwang@redhat.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29fec: Use NAPI_POLL_WEIGHTFabio Estevam1-2/+1
Instead of using a custom 'FEC_NAPI_WEIGHT', just use the generic 'NAPI_POLL_WEIGHT' definition instead. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: sctp: sctp_verify_init: clean up mandatory checks and add commentDaniel Borkmann1-14/+12
Add a comment related to RFC4960 explaning why we do not check for initial TSN, and while at it, remove yoda notation checks and clean up code from checks of mandatory conditions. That's probably just really minor, but makes reviewing easier. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29tcp: TSO packets automatic sizingEric Dumazet7-7/+77
After hearing many people over past years complaining against TSO being bursty or even buggy, we are proud to present automatic sizing of TSO packets. One part of the problem is that tcp_tso_should_defer() uses an heuristic relying on upcoming ACKS instead of a timer, but more generally, having big TSO packets makes little sense for low rates, as it tends to create micro bursts on the network, and general consensus is to reduce the buffering amount. This patch introduces a per socket sk_pacing_rate, that approximates the current sending rate, and allows us to size the TSO packets so that we try to send one packet every ms. This field could be set by other transports. Patch has no impact for high speed flows, where having large TSO packets makes sense to reach line rate. For other flows, this helps better packet scheduling and ACK clocking. This patch increases performance of TCP flows in lossy environments. A new sysctl (tcp_min_tso_segs) is added, to specify the minimal size of a TSO packet (default being 2). A follow-up patch will provide a new packet scheduler (FQ), using sk_pacing_rate as an input to perform optional per flow pacing. This explains why we chose to set sk_pacing_rate to twice the current rate, allowing 'slow start' ramp up. sk_pacing_rate = 2 * cwnd * mss / srtt v2: Neal Cardwell reported a suspect deferring of last two segments on initial write of 10 MSS, I had to change tcp_tso_should_defer() to take into account tp->xmit_size_goal_segs Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Van Jacobson <vanj@google.com> Cc: Tom Herbert <therbert@google.com> Acked-by: Yuchung Cheng <ycheng@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29ipv6: drop fragmented ndisc packets by default (RFC 6980)Hannes Frederic Sowa5-0/+35
This patch implements RFC6980: Drop fragmented ndisc packets by default. If a fragmented ndisc packet is received the user is informed that it is possible to disable the check. Cc: Fernando Gont <fernando@gont.com.ar> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29ARM: at91/dt: fix phy address in sama5xmb to match the reg propertyBoris BREZILLON1-1/+1
Fix phy0 address to match the reg property defined in phy0 node. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net/cadence/macb: fix invalid 0 return if no phy is discovered on mii initBoris BREZILLON1-3/+3
Replace misleading -1 (-EPERM) by a more appropriate return code (-ENXIO) in macb_mii_probe function. Save macb_mii_probe return before branching to err_out_unregister to avoid erronous 0 return. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29bridge: inherit slave devices needed_headroomFlorian Fainelli1-0/+3
Some slave devices may have set a dev->needed_headroom value which is different than the default one, most likely in order to prepend a hardware descriptor in front of the Ethernet frame to send. Whenever a new slave is added to a bridge, ensure that we update the needed_headroom value accordingly to account for the slave needed_headroom value. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: sctp: reorder sctp_globals to reduce cacheline usageDaniel Borkmann1-11/+9
Reduce cacheline usage from 2 to 1 cacheline for sctp_globals structure. By reordering elements, we can close gaps and simply achieve the following: Current situation: /* size: 80, cachelines: 2, members: 10 */ /* sum members: 57, holes: 4, sum holes: 16 */ /* padding: 7 */ /* last cacheline: 16 bytes */ Afterwards: /* size: 64, cachelines: 1, members: 10 */ /* padding: 7 */ Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29net: mdio-sun4i: Convert to devm_* apiJisheng Zhang1-9/+9
Use devm_ioremap_resource instead of of_iomap() and devm_kzalloc() instead of kmalloc() to make cleanup paths simpler. This patch also fixes the resource leak caused by missing corresponding iounamp() of the of_iomap(). Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29ixgbe: add support for older QSFP active DA cablesEmil Tantilov2-10/+50
This patch adds support for QSFP active direct attach (DA) cables which pre-date SFF-8436 v3.6. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: include QSFP PHY types in ixgbe_is_sfp()Emil Tantilov1-0/+4
This patch makes sure that QSFP+ modules use the SFP+ code path for setting up link. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: add 1Gbps support for QSFP+Emil Tantilov3-11/+33
This patch adds GB speed support for QSFP+ modules. Autonegotiation is not supported with QSFP+. The user will have to set the desired speed on both link partners using ethtool advertise setting. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: fix SFF data dumps of SFP+ modules from an offsetEmil Tantilov1-5/+4
This patch fixes the read loop for the I2C data to account for the offset. Also includes a whitespace cleanup and removes ret_val as it is not needed. CC: Ben Hutchings <bhutchings@solarflare.com> Reported-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: cleanup some log messagesDon Skidmore2-5/+3
Some minor log messages cleanup, changing the level one message is logged, adding a bit of detail to another and put all the text on one line. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: zero out mailbox buffer on initEmil Tantilov1-2/+2
This patch initializes the msgbuf array to 0 in order to avoid using random numbers from the memory as MAC address for the VF. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: fix link test when connected to 1Gbps link partnerEmil Tantilov1-17/+10
This patch is a partial reverse of: commit dfcc4615f09c33454bc553567f7c7506cae60cb9 Author: Jacob Keller <jacob.e.keller@intel.com> Date: Thu Nov 8 07:07:08 2012 +0000 ixgbe: ethtool ixgbe_diag_test cleanup Specifically forcing the laser before the link check can lead to inconsistent results because it does not guarantee that the link will be negotiated correctly. Such is the case when dual speed SFP+ module is connected to a gigabit link partner. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: fix incorrect limit value in ring transverseDon Skidmore1-1/+1
We were transversing the tx_ring with IXGBE_NUM_RX_QUEUES. Now this define happens to have the correct value but this is misleading and a change later could easily make this no longer true. I updated it to netdev->num_tx_queues like we use in ixgbe_get_strings(). Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: Check return value on eeprom readsMark Rustad4-39/+107
This patch fixes the possible use of uninitialized memory by checking the return value on eeprom reads. These issues were identified by static analysis. In many cases error messages will be produced so that corrupted eeprom issues will be more visible. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29ixgbe: disable link when adapter goes downJacob Keller3-0/+25
This patch fixes an issue with the 82599 adapter where it can potentially keep link lights up when the adapter has gone down. The patch adds a function which ensures link is disabled, and calls this function when the adapter transitions to a down state. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-29qlcnic: underflow in qlcnic_validate_max_tx_rings()Dan Carpenter2-2/+2
This function checks the upper bound but it doesn't check for negative numbers: if (txq > QLCNIC_MAX_TX_RINGS) { I've solved this by making "txq" a u32 type. I chose that because ->tx_count in the ethtool_channels struct is a __u32. This bug was added in aa4a1f7df7 ('qlcnic: Enable Tx queue changes using ethtool for 82xx Series adapter.'). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29xen-netback: rename functionsWei Liu3-133/+134
As we move to 1:1 model and melt xen_netbk and xenvif together, it would be better to use single prefix for all functions in xen-netback. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29xen-netback: switch to NAPI + kthread 1:1 modelWei Liu3-507/+351
This patch implements 1:1 model netback. NAPI and kthread are utilized to do the weight-lifting job: - NAPI is used for guest side TX (host side RX) - kthread is used for guest side RX (host side TX) Xenvif and xen_netbk are made into one structure to reduce code size. This model provides better scheduling fairness among vifs. It is also prerequisite for implementing multiqueue for Xen netback. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29xen-netback: remove page tracking facilityWei Liu1-75/+2
The data flow from DomU to DomU on the same host in current copying scheme with tracking facility: copy DomU --------> Dom0 DomU | ^ |____________________________| copy The page in Dom0 is a page with valid MFN. So we can always copy from page Dom0, thus removing the need for a tracking facility. copy copy DomU --------> Dom0 -------> DomU Simple iperf test shows no performance regression (obviously we copy twice either way): W/ tracking: ~5.3Gb/s W/o tracking: ~5.4Gb/s Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Matt Wilson <msw@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-28batman-adv: send GW_DEL event when the gw client mode is deselectedAntonio Quartulli3-0/+32
Whenever the GW client mode is deselected, a DEL event has to be sent in order to tell userspace that the current gateway has been lost. Send the uevent on state change only if a gateway was currently selected. Reported-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2013-08-28batman-adv: Start new development cycleSimon Wunderlich1-1/+1
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
2013-08-28batman-adv: move enum definition at the top of the fileAntonio Quartulli1-15/+16
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
2013-08-28batman-adv: set skb priority according to contentSimon Wunderlich10-2/+91
The skb priority field may help the wireless driver to choose the right queue (e.g. WMM queues). This should be set in batman-adv, as this information is only available here. This patch adds support for IPv4/IPv6 DS fields and VLAN PCP. Note that only VLAN PCP is used if a VLAN header is present. Also initially set TC_PRIO_CONTROL only for self-generated packets, and keep the priority set by higher layers. Signed-off-by: Simon Wunderlich <simon@open-mesh.com> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
2013-08-28netfilter: ctnetlink: fix uninitialized variableFlorian Westphal1-1/+1
net/netfilter/nf_conntrack_netlink.c: In function 'ctnetlink_nfqueue_attach_expect': 'helper' may be used uninitialized in this function It was only initialized in if CTA_EXPECT_HELP_NAME attribute was present, it must be NULL otherwise. Problem added recently in bd077937 (netfilter: nfnetlink_queue: allow to attach expectations to conntracks). Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-08-28netfilter: add IPv6 SYNPROXY targetPatrick McHardy3-0/+509
Add an IPv6 version of the SYNPROXY target. The main differences to the IPv4 version is routing and IP header construction. Signed-off-by: Patrick McHardy <kaber@trash.net> Tested-by: Martin Topholm <mph@one.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-08-28net: syncookies: export cookie_v6_init_sequence/cookie_v6_checkPatrick McHardy2-9/+20
Extract the local TCP stack independant parts of tcp_v6_init_sequence() and cookie_v6_check() and export them for use by the upcoming IPv6 SYNPROXY target. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: Martin Topholm <mph@one.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-08-28netfilter: add SYNPROXY core/targetPatrick McHardy13-1/+1066
Add a SYNPROXY for netfilter. The code is split into two parts, the synproxy core with common functions and an address family specific target. The SYNPROXY receives the connection request from the client, responds with a SYN/ACK containing a SYN cookie and announcing a zero window and checks whether the final ACK from the client contains a valid cookie. It then establishes a connection to the original destination and, if successful, sends a window update to the client with the window size announced by the server. Support for timestamps, SACK, window scaling and MSS options can be statically configured as target parameters if the features of the server are known. If timestamps are used, the timestamp value sent back to the client in the SYN/ACK will be different from the real timestamp of the server. In order to now break PAWS, the timestamps are translated in the direction server->client. Signed-off-by: Patrick McHardy <kaber@trash.net> Tested-by: Martin Topholm <mph@one.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-08-28net: syncookies: export cookie_v4_init_sequence/cookie_v4_checkPatrick McHardy2-11/+22
Extract the local TCP stack independant parts of tcp_v4_init_sequence() and cookie_v4_check() and export them for use by the upcoming SYNPROXY target. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: Martin Topholm <mph@one.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-08-28netfilter: nf_conntrack: make sequence number adjustments usuable without NATPatrick McHardy18-376/+369
Split out sequence number adjustments from NAT and move them to the conntrack core to make them usable for SYN proxying. The sequence number adjustment information is moved to a seperate extend. The extend is added to new conntracks when a NAT mapping is set up for a connection using a helper. As a side effect, this saves 24 bytes per connection with NAT in the common case that a connection does not have a helper assigned. Signed-off-by: Patrick McHardy <kaber@trash.net> Tested-by: Martin Topholm <mph@one.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-08-28netfilter: nf_defrag_ipv6.o included twiceNathan Hintz1-1/+1
'nf_defrag_ipv6' is built as a separate module; it shouldn't be included in the 'nf_conntrack_ipv6' module as well. Signed-off-by: Nathan Hintz <nlhintz@hotmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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