1. 30 Sep, 2014 22 commits
  2. 29 Sep, 2014 18 commits
    • Michael Braun's avatar
      macvlan: add source mode · 79cf79ab
      Michael Braun authored
      This patch adds a new mode of operation to macvlan, called "source".
      It allows one to set a list of allowed mac address, which is used
      to match against source mac address from received frames on underlying
      interface.
      This enables creating mac based VLAN associations, instead of standard
      port or tag based. The feature is useful to deploy 802.1x mac based
      behavior, where drivers of underlying interfaces doesn't allows that.
      
      Configuration is done through the netlink interface using e.g.:
       ip link add link eth0 name macvlan0 type macvlan mode source
       ip link add link eth0 name macvlan1 type macvlan mode source
       ip link set link dev macvlan0 type macvlan macaddr add 00:11:11:11:11:11
       ip link set link dev macvlan0 type macvlan macaddr add 00:22:22:22:22:22
       ip link set link dev macvlan0 type macvlan macaddr add 00:33:33:33:33:33
       ip link set link dev macvlan1 type macvlan macaddr add 00:33:33:33:33:33
       ip link set link dev macvlan1 type macvlan macaddr add 00:44:44:44:44:44
      
      This allows clients with MAC addresses 00:11:11:11:11:11,
      00:22:22:22:22:22 to be part of only VLAN associated with macvlan0
      interface. Clients with MAC addresses 00:44:44:44:44:44 with only VLAN
      associated with macvlan1 interface. And client with MAC address
      00:33:33:33:33:33 to be associated with both VLANs.
      
      Based on work of Stefan Gula <steweg@gmail.com>
      
      v8: last version of Stefan Gula for Kernel 3.2.1
      v9: rework onto linux-next 2014-03-12 by Michael Braun
          add MACADDR_SET command, enable to configure mac for source mode
          while creating interface
      v10:
        - reduce indention level
        - rename source_list to source_entry
        - use aligned 64bit ether address
        - use hash_64 instead of addr[5]
      v11:
        - rebase for 3.14 / linux-next 20.04.2014
      v12
        - rebase for linux-next 2014-09-25
      Signed-off-by: default avatarMichael Braun <michael-dev@fami-braun.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      79cf79ab
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next · 85224844
      David S. Miller authored
      Pablo Neira Ayuso says:
      
      ====================
      pull request: netfilter/ipvs updates for net-next
      
      The following patchset contains Netfilter/IPVS updates for net-next,
      most relevantly they are:
      
      1) Four patches to make the new nf_tables masquerading support
         independent of the x_tables infrastructure. This also resolves a
         compilation breakage if the masquerade target is disabled but the
         nf_tables masq expression is enabled.
      
      2) ipset updates via Jozsef Kadlecsik. This includes the addition of the
         skbinfo extension that allows you to store packet metainformation in the
         elements. This can be used to fetch and restore this to the packets through
         the iptables SET target, patches from Anton Danilov.
      
      3) Add the hash:mac set type to ipset, from Jozsef Kadlecsick.
      
      4) Add simple weighted fail-over scheduler via Simon Horman. This provides
         a fail-over IPVS scheduler (unlike existing load balancing schedulers).
         Connections are directed to the appropriate server based solely on
         highest weight value and server availability, patch from Kenny Mathis.
      
      5) Support IPv6 real servers in IPv4 virtual-services and vice versa.
         Simon Horman informs that the motivation for this is to allow more
         flexibility in the choice of IP version offered by both virtual-servers
         and real-servers as they no longer need to match: An IPv4 connection
         from an end-user may be forwarded to a real-server using IPv6 and
         vice versa. No ip_vs_sync support yet though. Patches from Alex Gartrell
         and Julian Anastasov.
      
      6) Add global generation ID to the nf_tables ruleset. When dumping from
         several different object lists, we need a way to identify that an update
         has ocurred so userspace knows that it needs to refresh its lists. This
         also includes a new command to obtain the 32-bits generation ID. The
         less significant 16-bits of this ID is also exposed through res_id field
         in the nfnetlink header to quickly detect the interference and retry when
         there is no risk of ID wraparound.
      
      7) Move br_netfilter out of the bridge core. The br_netfilter code is
         built in the bridge core by default. This causes problems of different
         kind to people that don't want this: Jesper reported performance drop due
         to the inconditional hook registration and I remember to have read complains
         on netdev from people regarding the unexpected behaviour of our bridging
         stack when br_netfilter is enabled (fragmentation handling, layer 3 and
         upper inspection). People that still need this should easily undo the
         damage by modprobing the new br_netfilter module.
      
      8) Dump the set policy nf_tables that allows set parameterization. So
         userspace can keep user-defined preferences when saving the ruleset.
         From Arturo Borrero.
      
      9) Use __seq_open_private() helper function to reduce boiler plate code
         in x_tables, From Rob Jones.
      
      10) Safer default behaviour in case that you forget to load the protocol
         tracker. Daniel Borkmann and Florian Westphal detected that if your
         ruleset is stateful, you allow traffic to at least one single SCTP port
         and the SCTP protocol tracker is not loaded, then any SCTP traffic may
         be pass through unfiltered. After this patch, the connection tracking
         classifies SCTP/DCCP/UDPlite/GRE packets as invalid if your kernel has
         been compiled with support for these modules.
      ====================
      
      Trivially resolved conflict in include/linux/skbuff.h, Eric moved some
      netfilter skbuff members around, and the netfilter tree adjusted the
      ifdef guards for the bridging info pointer.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      85224844
    • Florian Westphal's avatar
      tcp: change TCP_ECN prefixes to lower case · 735d3831
      Florian Westphal authored
      Suggested by Stephen. Also drop inline keyword and let compiler decide.
      
      gcc 4.7.3 decides to no longer inline tcp_ecn_check_ce, so split it up.
      The actual evaluation is not inlined anymore while the ECN_OK test is.
      Suggested-by: default avatarStephen Hemminger <stephen@networkplumber.org>
      Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
      Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      735d3831
    • Florian Westphal's avatar
      tcp: move TCP_ECN_create_request out of header · d82bd122
      Florian Westphal authored
      After Octavian Purdilas tcp ipv4/ipv6 unification work this helper only
      has a single callsite.
      
      While at it, convert name to lowercase, suggested by Stephen.
      Suggested-by: default avatarStephen Hemminger <stephen@networkplumber.org>
      Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
      Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d82bd122
    • David S. Miller's avatar
      Merge branch 'arcnet-EAE' · 2b7fc477
      David S. Miller authored
      Michael Grzeschik says:
      
      ====================
      ARCNET: add support for EAE multi interfac card
      
      this series adds support for the PLX Bridge based multi interface
      pci cards and adds support to change device address on com200xx chips
      during runtime.
      
      This series is based on v3.17-rc7.
      It is fixed for build against com20020_cs.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2b7fc477
    • Michael Grzeschik's avatar
      ARCNET: enable eae arcnet card support · 5b85bad2
      Michael Grzeschik authored
      This patch adds support for the EAE arcnet cards
      which has two Interfaces.
      Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5b85bad2
    • Michael Grzeschik's avatar
      ARCNET: add support for multi interfaces on com20020 · c51da42a
      Michael Grzeschik authored
      The com20020-pci driver is currently designed to instance
      one netdev with one pci device. This patch adds support to
      instance many cards with one pci device, depending on the device
      data in the private data.
      Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c51da42a
    • Michael Grzeschik's avatar
      ARCNET: add com20020 PCI IDs with metadata · 8c14f9c7
      Michael Grzeschik authored
      This patch adds metadata for the com20020 to prepare for devices with
      multiple io address areas with multi card interfaces.
      Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8c14f9c7
    • Michael Grzeschik's avatar
      ARCNET: add com20020_set_hwddr to change address · a0d2e513
      Michael Grzeschik authored
      This patch adds com20020_set_hwaddr to make
      it possible to change the hwaddr on runtime.
      Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a0d2e513
    • Michael Grzeschik's avatar
      ARCNET: return IRQ_NONE if the interface isn't running · 226ee675
      Michael Grzeschik authored
      The interrupt handler needs to return IRQ_NONE in case
      two devices are used with the shared interrupt handler.
      Otherwise it could steal interrupts from the other
      interface.
      Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      226ee675
    • Li RongQing's avatar
      tcp: remove unnecessary assignment. · 41c91996
      Li RongQing authored
      This variable i is overwritten to 0 by following code
      Signed-off-by: default avatarLi RongQing <roy.qing.li@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      41c91996
    • Eric Dumazet's avatar
      net: reorganize sk_buff for faster __copy_skb_header() · b1937227
      Eric Dumazet authored
      With proliferation of bit fields in sk_buff, __copy_skb_header() became
      quite expensive, showing as the most expensive function in a GSO
      workload.
      
      __copy_skb_header() performance is also critical for non GSO TCP
      operations, as it is used from skb_clone()
      
      This patch carefully moves all the fields that were not copied in a
      separate zone : cloned, nohdr, fclone, peeked, head_frag, xmit_more
      
      Then I moved all other fields and all other copied fields in a section
      delimited by headers_start[0]/headers_end[0] section so that we
      can use a single memcpy() call, inlined by compiler using long
      word load/stores.
      
      I also tried to make all copies in the natural orders of sk_buff,
      to help hardware prefetching.
      
      I made sure sk_buff size did not change.
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b1937227
    • Florian Westphal's avatar
      netfilter: conntrack: disable generic tracking for known protocols · db29a950
      Florian Westphal authored
      Given following iptables ruleset:
      
      -P FORWARD DROP
      -A FORWARD -m sctp --dport 9 -j ACCEPT
      -A FORWARD -p tcp --dport 80 -j ACCEPT
      -A FORWARD -p tcp -m conntrack -m state ESTABLISHED,RELATED -j ACCEPT
      
      One would assume that this allows SCTP on port 9 and TCP on port 80.
      Unfortunately, if the SCTP conntrack module is not loaded, this allows
      *all* SCTP communication, to pass though, i.e. -p sctp -j ACCEPT,
      which we think is a security issue.
      
      This is because on the first SCTP packet on port 9, we create a dummy
      "generic l4" conntrack entry without any port information (since
      conntrack doesn't know how to extract this information).
      
      All subsequent packets that are unknown will then be in established
      state since they will fallback to proto_generic and will match the
      'generic' entry.
      
      Our originally proposed version [1] completely disabled generic protocol
      tracking, but Jozsef suggests to not track protocols for which a more
      suitable helper is available, hence we now mitigate the issue for in
      tree known ct protocol helpers only, so that at least NAT and direction
      information will still be preserved for others.
      
       [1] http://www.spinics.net/lists/netfilter-devel/msg33430.html
      
      Joint work with Daniel Borkmann.
      Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
      Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
      Acked-by: default avatarJozsef Kadlecsik <kadlec@blackhole.kfki.hu>
      Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      db29a950
    • Arturo Borrero's avatar
      netfilter: nf_tables: store and dump set policy · 9363dc4b
      Arturo Borrero authored
      We want to know in which cases the user explicitly sets the policy
      options. In that case, we also want to dump back the info.
      Signed-off-by: default avatarArturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
      Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      9363dc4b
    • David S. Miller's avatar
      Merge branch 'qca7000_spi' · 842abe08
      David S. Miller authored
      Stefan Wahren says:
      
      ====================
      add Qualcomm QCA7000 ethernet driver
      
      This patch series adds support for the Qualcomm QCA7000 Homeplug GreenPHY.
      The QCA7000 is serial-to-powerline bridge with two interfaces: UART and SPI.
      These patches handles only the last one, with an Ethernet over SPI protocol
      driver.
      
      This driver based on the Qualcomm code [1], but contains a lot of changes
      since last year:
      
      * devicetree support
      * DebugFS support
      * ethtool support
      * better error handling
      * performance improvements
      * code cleanup
      * some bugfixes
      
      The code has been tested only on Freescale i.MX28 boards, but should work
      on other platforms.
      
      [1] - https://github.com/IoE/qca7000
      
      Changes in V3:
      - Use ether_addr_copy instead of memcpy
      - Remove qcaspi_set_mac_address
      - Improve DT parsing
      - replace OF_GPIO dependancy with OF
      - fix compile error caused by SET_ETHTOOL_OPS
      - fix possible endless loop when spi read fails
      - fix DT documentation
      - fix coding style
      - fix sparse warnings
      
      Changes in V2:
      - replace in DT the SPI intr GPIO with pure interrupt
      - make legacy mode a boolean DT property and remove it as module parameter
      - make burst length a module parameter instead of DT property
      - make pluggable a module parameter instead of DT property
      - improve DT documentation
      - replace debugFS register dump with ethtool function
      - replace debugFS stats with ethtool function
      - implement function to get ring parameter via ethtool
      - implement function to set TX ring count via ethtool
      - fix TX ring state in debugFS
      - optimize tx ring flush
      - add byte limit for TX ring to avoid bufferbloat
      - fix TX queue full and write buffer miss counter
      - fix SPI clk speed module parameter
      - fix possible packet loss
      - fix possible race during transmit
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      842abe08
    • Stefan Wahren's avatar
      net: qualcomm: new Ethernet over SPI driver for QCA7000 · 291ab06e
      Stefan Wahren authored
      This patch adds the Ethernet over SPI driver for the
      Qualcomm QCA7000 HomePlug GreenPHY.
      Signed-off-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      291ab06e
    • Stefan Wahren's avatar
      Documentation: add Device tree bindings for QCA7000 · 7d50df8f
      Stefan Wahren authored
      This patch adds the Device tree bindings for the
      Ethernet over SPI protocol driver of the Qualcomm
      QCA7000 HomePlug GreenPHY.
      Signed-off-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7d50df8f
    • David S. Miller's avatar
      Merge branch 'dctcp' · a11238ec
      David S. Miller authored
      Daniel Borkmann says:
      
      ====================
      net: tcp: DCTCP congestion control algorithm
      
      This patch series adds support for the DataCenter TCP (DCTCP) congestion
      control algorithm. Please see individual patches for the details.
      
      The last patch adds DCTCP as a congestion control module, and previous
      ones add needed infrastructure to extend the congestion control framework.
      
      Joint work between Florian Westphal, Daniel Borkmann and Glenn Judd.
      
      v3 -> v2:
       - No changes anywhere, just a resend as requested by Dave
       - Added Stephen's ACK
      v1 -> v2:
       - Rebased to latest net-next
       - Addressed Eric's feedback, thanks!
        - Update stale comment wrt. DCTCP ECN usage
        - Don't call INET_ECN_xmit for every packet
       - Add dctcp ss/inetdiag support to expose internal stats to userspace
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a11238ec