1. 20 Nov, 2018 31 commits
  2. 19 Nov, 2018 9 commits
    • David S. Miller's avatar
      Merge branch 'sctp-add-subscribe-per-asoc-and-sockopt-SCTP_EVENT' · cfc6731d
      David S. Miller authored
      Xin Long says:
      
      ====================
      sctp: add subscribe per asoc and sockopt SCTP_EVENT
      
      This patchset mainly adds the Event Subscription sockopt described in
      rfc6525#section-6.2:
      
      "Subscribing to events as described in [RFC6458] uses a setsockopt()
      call with the SCTP_EVENT socket option.  This option takes the
      following structure, which specifies the association, the event type
      (using the same value found in the event type field), and an on/off
      boolean.
      
        struct sctp_event {
          sctp_assoc_t se_assoc_id;
          uint16_t     se_type;
          uint8_t      se_on;
        };
      
      The user fills in the se_type field with the same value found in the
      strreset_type field, i.e., SCTP_STREAM_RESET_EVENT.  The user will
      also fill in the se_assoc_id field with either the association to set
      this event on (this field is ignored for one-to-one style sockets) or
      one of the reserved constant values defined in [RFC6458].  Finally,
      the se_on field is set with a 1 to enable the event or a 0 to disable
      the event."
      
      As for the old SCTP_EVENTS Option with struct sctp_event_subscribe,
      it's being DEPRECATED.
      
      v1->v2:
        - fix some key word in changelog that triggerred the filters at
          vger.kernel.org.
      v2->v3:
        - fix an array out of bounds noticed by Neil in patch 1/4.
      ====================
      Acked-by: default avatarNeil Horman <nhorman@tuxdriver.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cfc6731d
    • Xin Long's avatar
      sctp: add sockopt SCTP_EVENT · 480ba9c1
      Xin Long authored
      This patch adds sockopt SCTP_EVENT described in rfc6525#section-6.2.
      With this sockopt users can subscribe to an event from a specified
      asoc.
      Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      480ba9c1
    • Xin Long's avatar
      sctp: rename enum sctp_event to sctp_event_type · 88ee48c1
      Xin Long authored
      sctp_event is a structure name defined in RFC for sockopt
      SCTP_EVENT. To avoid the conflict, rename it.
      Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      88ee48c1
    • Xin Long's avatar
      sctp: add subscribe per asoc · a1e3a059
      Xin Long authored
      The member subscribe should be per asoc, so that sockopt SCTP_EVENT
      in the next patch can subscribe a event from one asoc only.
      Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a1e3a059
    • Xin Long's avatar
      sctp: define subscribe in sctp_sock as __u16 · 2cc0eeb6
      Xin Long authored
      The member subscribe in sctp_sock is used to indicate to which of
      the events it is subscribed, more like a group of flags. So it's
      better to be defined as __u16 (2 bytpes), instead of struct
      sctp_event_subscribe (13 bytes).
      
      Note that sctp_event_subscribe is an UAPI struct, used on sockopt
      calls, and thus it will not be removed. This patch only changes
      the internal storage of the flags.
      Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2cc0eeb6
    • David S. Miller's avatar
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · f2ce1065
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Fix some potentially uninitialized variables and use-after-free in
          kvaser_usb can drier, from Jimmy Assarsson.
      
       2) Fix leaks in qed driver, from Denis Bolotin.
      
       3) Socket leak in l2tp, from Xin Long.
      
       4) RSS context allocation fix in bnxt_en from Michael Chan.
      
       5) Fix cxgb4 build errors, from Ganesh Goudar.
      
       6) Route leaks in ipv6 when removing exceptions, from Xin Long.
      
       7) Memory leak in IDR allocation handling of act_pedit, from Davide
          Caratti.
      
       8) Use-after-free of bridge vlan stats, from Nikolay Aleksandrov.
      
       9) When MTU is locked, do not force DF bit on ipv4 tunnels. From
          Sabrina Dubroca.
      
      10) When NAPI cached skb is reused, we must set it to the proper initial
          state which includes skb->pkt_type. From Eric Dumazet.
      
      11) Lockdep and non-linear SKB handling fix in tipc from Jon Maloy.
      
      12) Set RX queue properly in various tuntap receive paths, from Matthew
          Cover.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
        tuntap: fix multiqueue rx
        ipv6: Fix PMTU updates for UDP/raw sockets in presence of VRF
        tipc: don't assume linear buffer when reading ancillary data
        tipc: fix lockdep warning when reinitilaizing sockets
        net-gro: reset skb->pkt_type in napi_reuse_skb()
        tc-testing: tdc.py: Guard against lack of returncode in executed command
        tc-testing: tdc.py: ignore errors when decoding stdout/stderr
        ip_tunnel: don't force DF when MTU is locked
        MAINTAINERS: Add entry for CAKE qdisc
        net: bridge: fix vlan stats use-after-free on destruction
        socket: do a generic_file_splice_read when proto_ops has no splice_read
        net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs
        Revert "net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs"
        net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs
        net/sched: act_pedit: fix memory leak when IDR allocation fails
        net: lantiq: Fix returned value in case of error in 'xrx200_probe()'
        ipv6: fix a dst leak when removing its exception
        net: mvneta: Don't advertise 2.5G modes
        drivers/net/ethernet/qlogic/qed/qed_rdma.h: fix typo
        net/mlx4: Fix UBSAN warning of signed integer overflow
        ...
      f2ce1065
    • Matthew Cover's avatar
      tuntap: fix multiqueue rx · 8ebebcba
      Matthew Cover authored
      When writing packets to a descriptor associated with a combined queue, the
      packets should end up on that queue.
      
      Before this change all packets written to any descriptor associated with a
      tap interface end up on rx-0, even when the descriptor is associated with a
      different queue.
      
      The rx traffic can be generated by either of the following.
        1. a simple tap program which spins up multiple queues and writes packets
           to each of the file descriptors
        2. tx from a qemu vm with a tap multiqueue netdev
      
      The queue for rx traffic can be observed by either of the following (done
      on the hypervisor in the qemu case).
        1. a simple netmap program which opens and reads from per-queue
           descriptors
        2. configuring RPS and doing per-cpu captures with rxtxcpu
      
      Alternatively, if you printk() the return value of skb_get_rx_queue() just
      before each instance of netif_receive_skb() in tun.c, you will get 65535
      for every skb.
      
      Calling skb_record_rx_queue() to set the rx queue to the queue_index fixes
      the association between descriptor and rx queue.
      Signed-off-by: default avatarMatthew Cover <matthew.cover@stackpath.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8ebebcba
    • David Ahern's avatar
      ipv6: Fix PMTU updates for UDP/raw sockets in presence of VRF · 7ddacfa5
      David Ahern authored
      Preethi reported that PMTU discovery for UDP/raw applications is not
      working in the presence of VRF when the socket is not bound to a device.
      The problem is that ip6_sk_update_pmtu does not consider the L3 domain
      of the skb device if the socket is not bound. Update the function to
      set oif to the L3 master device if relevant.
      
      Fixes: ca254490 ("net: Add VRF support to IPv6 stack")
      Reported-by: default avatarPreethi Ramachandra <preethir@juniper.net>
      Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7ddacfa5