1. 27 Oct, 2016 4 commits
  2. 26 Oct, 2016 3 commits
  3. 23 Oct, 2016 4 commits
    • Cyrill Gorcunov's avatar
      net: ip, diag -- Add diag interface for raw sockets · 432490f9
      Cyrill Gorcunov authored
      In criu we are actively using diag interface to collect sockets
      present in the system when dumping applications. And while for
      unix, tcp, udp[lite], packet, netlink it works as expected,
      the raw sockets do not have. Thus add it.
      
      v2:
       - add missing sock_put calls in raw_diag_dump_one (by eric.dumazet@)
       - implement @Destroy for diag requests (by dsa@)
      
      v3:
       - add export of raw_abort for IPv6 (by dsa@)
       - pass net-admin flag into inet_sk_diag_fill due to
         changes in net-next branch (by dsa@)
      
      v4:
       - use @pad in struct inet_diag_req_v2 for raw socket
         protocol specification: raw module carries sockets
         which may have custom protocol passed from socket()
         syscall and sole @sdiag_protocol is not enough to
         match underlied ones
       - start reporting protocol specifed in socket() call
         when sockets are raw ones for the same reason: user
         space tools like ss may parse this attribute and use
         it for socket matching
      
      v5 (by eric.dumazet@):
       - use sock_hold in raw_sock_get instead of atomic_inc,
         we're holding (raw_v4_hashinfo|raw_v6_hashinfo)->lock
         when looking up so counter won't be zero here.
      
      v6:
       - use sdiag_raw_protocol() helper which will access @pad
         structure used for raw sockets protocol specification:
         we can't simply rename this member without breaking uapi
      
      v7:
       - sine sdiag_raw_protocol() helper is not suitable for
         uapi lets rather make an alias structure with proper
         names. __check_inet_diag_req_raw helper will catch
         if any of structure unintentionally changed.
      
      CC: David S. Miller <davem@davemloft.net>
      CC: Eric Dumazet <eric.dumazet@gmail.com>
      CC: David Ahern <dsa@cumulusnetworks.com>
      CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
      CC: James Morris <jmorris@namei.org>
      CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
      CC: Patrick McHardy <kaber@trash.net>
      CC: Andrey Vagin <avagin@openvz.org>
      CC: Stephen Hemminger <stephen@networkplumber.org>
      Signed-off-by: default avatarCyrill Gorcunov <gorcunov@openvz.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      432490f9
    • Thomas Graf's avatar
      lwt: Remove unused len field · f76a9db3
      Thomas Graf authored
      The field is initialized by ILA and MPLS but never used. Remove it.
      Signed-off-by: default avatarThomas Graf <tgraf@suug.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f76a9db3
    • Andrey Vagin's avatar
      net: allow to kill a task which waits net_mutex in copy_new_ns · 7281a665
      Andrey Vagin authored
      net_mutex can be locked for a long time. It may be because many
      namespaces are being destroyed or many processes decide to create
      a network namespace.
      
      Both these operations are heavy, so it is better to have an ability to
      kill a process which is waiting net_mutex.
      
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Eric W. Biederman <ebiederm@xmission.com>
      Signed-off-by: default avatarAndrei Vagin <avagin@openvz.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7281a665
    • Shmulik Ladkani's avatar
      net/sched: em_meta: Fix 'meta vlan' to correctly recognize zero VID frames · d65f2fa6
      Shmulik Ladkani authored
      META_COLLECTOR int_vlan_tag() assumes that if the accel tag (vlan_tci)
      is zero, then no vlan accel tag is present.
      
      This is incorrect for zero VID vlan accel packets, making the following
      match fail:
        tc filter add ... basic match 'meta(vlan mask 0xfff eq 0)' ...
      
      Apparently 'int_vlan_tag' was implemented prior VLAN_TAG_PRESENT was
      introduced in 05423b24 "vlan: allow null VLAN ID to be used"
      (and at time introduced, the 'vlan_tx_tag_get' call in em_meta was not
       adapted).
      
      Fix, testing skb_vlan_tag_present instead of testing skb_vlan_tag_get's
      value.
      
      Fixes: 05423b24 ("vlan: allow null VLAN ID to be used")
      Fixes: 1a31f204 ("netsched: Allow meta match on vlan tag on receive")
      Signed-off-by: default avatarShmulik Ladkani <shmulik.ladkani@gmail.com>
      Cc: Eric Dumazet <eric.dumazet@gmail.com>
      Cc: Stephen Hemminger <stephen@networkplumber.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d65f2fa6
  4. 22 Oct, 2016 4 commits
  5. 21 Oct, 2016 1 commit
  6. 20 Oct, 2016 7 commits
    • Jarod Wilson's avatar
      ipv4/6: use core net MTU range checking · b96f9afe
      Jarod Wilson authored
      ipv4/ip_tunnel:
      - min_mtu = 68, max_mtu = 0xFFF8 - dev->hard_header_len - t_hlen
      - preserve all ndo_change_mtu checks for now to prevent regressions
      
      ipv6/ip6_tunnel:
      - min_mtu = 68, max_mtu = 0xFFF8 - dev->hard_header_len
      - preserve all ndo_change_mtu checks for now to prevent regressions
      
      ipv6/ip6_vti:
      - min_mtu = 1280, max_mtu = 65535
      - remove redundant vti6_change_mtu
      
      ipv6/sit:
      - min_mtu = 1280, max_mtu = 0xFFF8 - t_hlen
      - remove redundant ipip6_tunnel_change_mtu
      
      CC: netdev@vger.kernel.org
      CC: "David S. Miller" <davem@davemloft.net>
      CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
      CC: James Morris <jmorris@namei.org>
      CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
      CC: Patrick McHardy <kaber@trash.net>
      Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b96f9afe
    • Jarod Wilson's avatar
      net: use core MTU range checking in misc drivers · b3e3893e
      Jarod Wilson authored
      firewire-net:
      - set min/max_mtu
      - remove fwnet_change_mtu
      
      nes:
      - set max_mtu
      - clean up nes_netdev_change_mtu
      
      xpnet:
      - set min/max_mtu
      - remove xpnet_dev_change_mtu
      
      hippi:
      - set min/max_mtu
      - remove hippi_change_mtu
      
      batman-adv:
      - set max_mtu
      - remove batadv_interface_change_mtu
      - initialization is a little async, not 100% certain that max_mtu is set
        in the optimal place, don't have hardware to test with
      
      rionet:
      - set min/max_mtu
      - remove rionet_change_mtu
      
      slip:
      - set min/max_mtu
      - streamline sl_change_mtu
      
      um/net_kern:
      - remove pointless ndo_change_mtu
      
      hsi/clients/ssi_protocol:
      - use core MTU range checking
      - remove now redundant ssip_pn_set_mtu
      
      ipoib:
      - set a default max MTU value
      - Note: ipoib's actual max MTU can vary, depending on if the device is in
        connected mode or not, so we'll just set the max_mtu value to the max
        possible, and let the ndo_change_mtu function continue to validate any new
        MTU change requests with checks for CM or not. Note that ipoib has no
        min_mtu set, and thus, the network core's mtu > 0 check is the only lower
        bounds here.
      
      mptlan:
      - use net core MTU range checking
      - remove now redundant mpt_lan_change_mtu
      
      fddi:
      - min_mtu = 21, max_mtu = 4470
      - remove now redundant fddi_change_mtu (including export)
      
      fjes:
      - min_mtu = 8192, max_mtu = 65536
      - The max_mtu value is actually one over IP_MAX_MTU here, but the idea is to
        get past the core net MTU range checks so fjes_change_mtu can validate a
        new MTU against what it supports (see fjes_support_mtu in fjes_hw.c)
      
      hsr:
      - min_mtu = 0 (calls ether_setup, max_mtu is 1500)
      
      f_phonet:
      - min_mtu = 6, max_mtu = 65541
      
      u_ether:
      - min_mtu = 14, max_mtu = 15412
      
      phonet/pep-gprs:
      - min_mtu = 576, max_mtu = 65530
      - remove redundant gprs_set_mtu
      
      CC: netdev@vger.kernel.org
      CC: linux-rdma@vger.kernel.org
      CC: Stefan Richter <stefanr@s5r6.in-berlin.de>
      CC: Faisal Latif <faisal.latif@intel.com>
      CC: linux-rdma@vger.kernel.org
      CC: Cliff Whickman <cpw@sgi.com>
      CC: Robin Holt <robinmholt@gmail.com>
      CC: Jes Sorensen <jes@trained-monkey.org>
      CC: Marek Lindner <mareklindner@neomailbox.ch>
      CC: Simon Wunderlich <sw@simonwunderlich.de>
      CC: Antonio Quartulli <a@unstable.cc>
      CC: Sathya Prakash <sathya.prakash@broadcom.com>
      CC: Chaitra P B <chaitra.basappa@broadcom.com>
      CC: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
      CC: MPT-FusionLinux.pdl@broadcom.com
      CC: Sebastian Reichel <sre@kernel.org>
      CC: Felipe Balbi <balbi@kernel.org>
      CC: Arvid Brodin <arvid.brodin@alten.se>
      CC: Remi Denis-Courmont <courmisch@gmail.com>
      Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b3e3893e
    • Jarod Wilson's avatar
      net: use core MTU range checking in core net infra · 91572088
      Jarod Wilson authored
      geneve:
      - Merge __geneve_change_mtu back into geneve_change_mtu, set max_mtu
      - This one isn't quite as straight-forward as others, could use some
        closer inspection and testing
      
      macvlan:
      - set min/max_mtu
      
      tun:
      - set min/max_mtu, remove tun_net_change_mtu
      
      vxlan:
      - Merge __vxlan_change_mtu back into vxlan_change_mtu
      - Set max_mtu to IP_MAX_MTU and retain dynamic MTU range checks in
        change_mtu function
      - This one is also not as straight-forward and could use closer inspection
        and testing from vxlan folks
      
      bridge:
      - set max_mtu of IP_MAX_MTU and retain dynamic MTU range checks in
        change_mtu function
      
      openvswitch:
      - set min/max_mtu, remove internal_dev_change_mtu
      - note: max_mtu wasn't checked previously, it's been set to 65535, which
        is the largest possible size supported
      
      sch_teql:
      - set min/max_mtu (note: max_mtu previously unchecked, used max of 65535)
      
      macsec:
      - min_mtu = 0, max_mtu = 65535
      
      macvlan:
      - min_mtu = 0, max_mtu = 65535
      
      ntb_netdev:
      - min_mtu = 0, max_mtu = 65535
      
      veth:
      - min_mtu = 68, max_mtu = 65535
      
      8021q:
      - min_mtu = 0, max_mtu = 65535
      
      CC: netdev@vger.kernel.org
      CC: Nicolas Dichtel <nicolas.dichtel@6wind.com>
      CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
      CC: Tom Herbert <tom@herbertland.com>
      CC: Daniel Borkmann <daniel@iogearbox.net>
      CC: Alexander Duyck <alexander.h.duyck@intel.com>
      CC: Paolo Abeni <pabeni@redhat.com>
      CC: Jiri Benc <jbenc@redhat.com>
      CC: WANG Cong <xiyou.wangcong@gmail.com>
      CC: Roopa Prabhu <roopa@cumulusnetworks.com>
      CC: Pravin B Shelar <pshelar@ovn.org>
      CC: Sabrina Dubroca <sd@queasysnail.net>
      CC: Patrick McHardy <kaber@trash.net>
      CC: Stephen Hemminger <stephen@networkplumber.org>
      CC: Pravin Shelar <pshelar@nicira.com>
      CC: Maxim Krasnyansky <maxk@qti.qualcomm.com>
      Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      91572088
    • Jarod Wilson's avatar
      net: use core MTU range checking in WAN drivers · 8b6b4135
      Jarod Wilson authored
      - set min/max_mtu in all hdlc drivers, remove hdlc_change_mtu
      - sent max_mtu in lec driver, remove lec_change_mtu
      - set min/max_mtu in x25_asy driver
      
      CC: netdev@vger.kernel.org
      CC: Krzysztof Halasa <khc@pm.waw.pl>
      CC: Krzysztof Halasa <khalasa@piap.pl>
      CC: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
      CC: Francois Romieu <romieu@fr.zoreil.com>
      CC: Kevin Curtis <kevin.curtis@farsite.co.uk>
      CC: Zhao Qiang <qiang.zhao@nxp.com>
      Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8b6b4135
    • Jarod Wilson's avatar
      net: use core MTU range checking in wireless drivers · 9c22b4a3
      Jarod Wilson authored
      - set max_mtu in wil6210 driver
      - set max_mtu in atmel driver
      - set min/max_mtu in cisco airo driver, remove airo_change_mtu
      - set min/max_mtu in ipw2100/ipw2200 drivers, remove libipw_change_mtu
      - set min/max_mtu in p80211netdev, remove wlan_change_mtu
      - set min/max_mtu in net/mac80211/iface.c and remove ieee80211_change_mtu
      - set min/max_mtu in wimax/i2400m and remove i2400m_change_mtu
      - set min/max_mtu in intersil/hostap and remove prism2_change_mtu
      - set min/max_mtu in intersil/orinoco
      - set min/max_mtu in tty/n_gsm and remove gsm_change_mtu
      
      CC: netdev@vger.kernel.org
      CC: linux-wireless@vger.kernel.org
      CC: Maya Erez <qca_merez@qca.qualcomm.com>
      CC: Simon Kelley <simon@thekelleys.org.uk>
      CC: Stanislav Yakovlev <stas.yakovlev@gmail.com>
      CC: Johannes Berg <johannes@sipsolutions.net>
      CC: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
      Signed-off-by: default avatarJarod Wilson <jarod@redhat.com>
      Acked-by: Johannes Berg's avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9c22b4a3
    • Eric Dumazet's avatar
      tcp: relax listening_hash operations · 9652dc2e
      Eric Dumazet authored
      softirq handlers use RCU protection to lookup listeners,
      and write operations all happen from process context.
      We do not need to block BH for dump operations.
      
      Also SYN_RECV since request sockets are stored in the ehash table :
      
       1) inet_diag_dump_icsk() no longer need to clear
          cb->args[3] and cb->args[4] that were used as cursors while
          iterating the old per listener hash table.
      
       2) Also factorize a test : No need to scan listening_hash[]
          if r->id.idiag_dport is not zero.
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9652dc2e
    • Thomas Graf's avatar
      ila: Fix tailroom allocation of lwtstate · c5098ebb
      Thomas Graf authored
      Tailroom is supposed to be of length sizeof(struct ila_lwt) but
      sizeof(struct ila_params) is currently allocated.
      
      This leads to the dst_cache and connected member of ila_lwt being
      referenced out of bounds.
      
      struct ila_lwt {
      	struct ila_params p;
      	struct dst_cache dst_cache;
      	u32 connected : 1;
      };
      
      Fixes: 65d7ab8d ("net: Identifier Locator Addressing module")
      Signed-off-by: default avatarThomas Graf <tgraf@suug.ch>
      Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c5098ebb
  7. 19 Oct, 2016 2 commits
  8. 18 Oct, 2016 7 commits
  9. 17 Oct, 2016 4 commits
  10. 15 Oct, 2016 2 commits
  11. 14 Oct, 2016 2 commits