diff options
author | David S. Miller <davem@davemloft.net> | 2014-07-16 14:09:34 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2014-07-16 14:09:34 -0700 |
commit | 1a98c69af1ecd97bfd1f4e4539924a9192434e36 (patch) | |
tree | a243defcf921ea174f8e43fce11d06830a6a9c36 /net | |
parent | 7a575f6b907ea5d207d2b5010293c189616eae34 (diff) | |
parent | b6603fe574af289dbe9eb9fb4c540bca04f5a053 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r-- | net/8021q/vlan_dev.c | 13 | ||||
-rw-r--r-- | net/appletalk/ddp.c | 3 | ||||
-rw-r--r-- | net/core/dev.c | 30 | ||||
-rw-r--r-- | net/core/iovec.c | 55 | ||||
-rw-r--r-- | net/core/neighbour.c | 9 | ||||
-rw-r--r-- | net/ipv4/gre_demux.c | 1 | ||||
-rw-r--r-- | net/ipv4/icmp.c | 2 | ||||
-rw-r--r-- | net/ipv4/igmp.c | 10 | ||||
-rw-r--r-- | net/ipv4/ip_tunnel.c | 12 | ||||
-rw-r--r-- | net/ipv4/route.c | 15 | ||||
-rw-r--r-- | net/ipv4/tcp.c | 3 | ||||
-rw-r--r-- | net/ipv4/tcp_input.c | 8 | ||||
-rw-r--r-- | net/ipv4/tcp_output.c | 6 | ||||
-rw-r--r-- | net/ipv4/udp.c | 5 | ||||
-rw-r--r-- | net/ipv6/mcast.c | 13 | ||||
-rw-r--r-- | net/ipv6/udp.c | 6 | ||||
-rw-r--r-- | net/l2tp/l2tp_ppp.c | 4 | ||||
-rw-r--r-- | net/netlink/af_netlink.c | 4 | ||||
-rw-r--r-- | net/openvswitch/actions.c | 2 | ||||
-rw-r--r-- | net/openvswitch/datapath.c | 27 | ||||
-rw-r--r-- | net/openvswitch/flow.c | 4 | ||||
-rw-r--r-- | net/openvswitch/flow.h | 5 | ||||
-rw-r--r-- | net/openvswitch/flow_table.c | 16 | ||||
-rw-r--r-- | net/openvswitch/flow_table.h | 3 | ||||
-rw-r--r-- | net/openvswitch/vport-gre.c | 17 | ||||
-rw-r--r-- | net/sctp/ulpevent.c | 122 | ||||
-rw-r--r-- | net/tipc/bcast.c | 1 | ||||
-rw-r--r-- | net/tipc/msg.c | 11 |
28 files changed, 169 insertions, 238 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 9d0223b16b46..35a6b6b15e8a 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -629,8 +629,6 @@ static void vlan_dev_uninit(struct net_device *dev) struct vlan_dev_priv *vlan = vlan_dev_priv(dev); int i; - free_percpu(vlan->vlan_pcpu_stats); - vlan->vlan_pcpu_stats = NULL; for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) { while ((pm = vlan->egress_priority_map[i]) != NULL) { vlan->egress_priority_map[i] = pm->next; @@ -787,6 +785,15 @@ static const struct net_device_ops vlan_netdev_ops = { .ndo_get_lock_subclass = vlan_dev_get_lock_subclass, }; +static void vlan_dev_free(struct net_device *dev) +{ + struct vlan_dev_priv *vlan = vlan_dev_priv(dev); + + free_percpu(vlan->vlan_pcpu_stats); + vlan->vlan_pcpu_stats = NULL; + free_netdev(dev); +} + void vlan_setup(struct net_device *dev) { ether_setup(dev); @@ -796,7 +803,7 @@ void vlan_setup(struct net_device *dev) dev->tx_queue_len = 0; dev->netdev_ops = &vlan_netdev_ops; - dev->destructor = free_netdev; + dev->destructor = vlan_dev_free; dev->ethtool_ops = &vlan_ethtool_ops; memset(dev->broadcast, 0, ETH_ALEN); diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 8ceabc073658..c00897f65a31 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1489,8 +1489,6 @@ static int atalk_rcv(struct sk_buff *skb, struct net_device *dev, goto drop; /* Queue packet (standard) */ - skb->sk = sock; - if (sock_queue_rcv_skb(sock, skb) < 0) goto drop; @@ -1644,7 +1642,6 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr if (!skb) goto out; - skb->sk = sk; skb_reserve(skb, ddp_dl->header_length); skb_reserve(skb, dev->hard_header_len); skb->dev = dev; diff --git a/net/core/dev.c b/net/core/dev.c index 2c98f10ee62a..138ab897de7d 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -148,6 +148,9 @@ struct list_head ptype_all __read_mostly; /* Taps */ static struct list_head offload_base __read_mostly; static int netif_rx_internal(struct sk_buff *skb); +static int call_netdevice_notifiers_info(unsigned long val, + struct net_device *dev, + struct netdev_notifier_info *info); /* * The @dev_base_head list is protected by @dev_base_lock and the rtnl @@ -1214,7 +1217,11 @@ EXPORT_SYMBOL(netdev_features_change); void netdev_state_change(struct net_device *dev) { if (dev->flags & IFF_UP) { - call_netdevice_notifiers(NETDEV_CHANGE, dev); + struct netdev_notifier_change_info change_info; + + change_info.flags_changed = 0; + call_netdevice_notifiers_info(NETDEV_CHANGE, dev, + &change_info.info); rtmsg_ifinfo(RTM_NEWLINK, dev, 0, GFP_KERNEL); } } @@ -4234,9 +4241,8 @@ static int process_backlog(struct napi_struct *napi, int quota) #endif napi->weight = weight_p; local_irq_disable(); - while (work < quota) { + while (1) { struct sk_buff *skb; - unsigned int qlen; while ((skb = __skb_dequeue(&sd->process_queue))) { local_irq_enable(); @@ -4250,24 +4256,24 @@ static int process_backlog(struct napi_struct *napi, int quota) } rps_lock(sd); - qlen = skb_queue_len(&sd->input_pkt_queue); - if (qlen) - skb_queue_splice_tail_init(&sd->input_pkt_queue, - &sd->process_queue); - - if (qlen < quota - work) { + if (skb_queue_empty(&sd->input_pkt_queue)) { /* * Inline a custom version of __napi_complete(). * only current cpu owns and manipulates this napi, - * and NAPI_STATE_SCHED is the only possible flag set on backlog. - * we can use a plain write instead of clear_bit(), + * and NAPI_STATE_SCHED is the only possible flag set + * on backlog. + * We can use a plain write instead of clear_bit(), * and we dont need an smp_mb() memory barrier. */ list_del(&napi->poll_list); napi->state = 0; + rps_unlock(sd); - quota = work + qlen; + break; } + + skb_queue_splice_tail_init(&sd->input_pkt_queue, + &sd->process_queue); rps_unlock(sd); } local_irq_enable(); diff --git a/net/core/iovec.c b/net/core/iovec.c index b61869429f4c..827dd6beb49c 100644 --- a/net/core/iovec.c +++ b/net/core/iovec.c @@ -75,61 +75,6 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a } /* - * Copy kernel to iovec. Returns -EFAULT on error. - */ - -int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata, - int offset, int len) -{ - int copy; - for (; len > 0; ++iov) { - /* Skip over the finished iovecs */ - if (unlikely(offset >= iov->iov_len)) { - offset -= iov->iov_len; - continue; - } - copy = min_t(unsigned int, iov->iov_len - offset, len); - if (copy_to_user(iov->iov_base + offset, kdata, copy)) - return -EFAULT; - offset = 0; - kdata += copy; - len -= copy; - } - - return 0; -} -EXPORT_SYMBOL(memcpy_toiovecend); - -/* - * Copy iovec to kernel. Returns -EFAULT on error. - */ - -int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, - int offset, int len) -{ - /* Skip over the finished iovecs */ - while (offset >= iov->iov_len) { - offset -= iov->iov_len; - iov++; - } - - while (len > 0) { - u8 __user *base = iov->iov_base + offset; - int copy = min_t(unsigned int, len, iov->iov_len - offset); - - offset = 0; - if (copy_from_user(kdata, base, copy)) - return -EFAULT; - len -= copy; - kdata += copy; - iov++; - } - - return 0; -} -EXPORT_SYMBOL(memcpy_fromiovecend); - -/* * And now for the all-in-one: copy and checksum from a user iovec * directly to a datagram * Calls to csum_partial but the last must be in 32 bit chunks diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 32d872eec7f5..559890b0f0a2 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -3059,11 +3059,12 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p, memset(&t->neigh_vars[NEIGH_VAR_GC_INTERVAL], 0, sizeof(t->neigh_vars[NEIGH_VAR_GC_INTERVAL])); } else { + struct neigh_table *tbl = p->tbl; dev_name_source = "default"; - t->neigh_vars[NEIGH_VAR_GC_INTERVAL].data = (int *)(p + 1); - t->neigh_vars[NEIGH_VAR_GC_THRESH1].data = (int *)(p + 1) + 1; - t->neigh_vars[NEIGH_VAR_GC_THRESH2].data = (int *)(p + 1) + 2; - t->neigh_vars[NEIGH_VAR_GC_THRESH3].data = (int *)(p + 1) + 3; + t->neigh_vars[NEIGH_VAR_GC_INTERVAL].data = &tbl->gc_interval; + t->neigh_vars[NEIGH_VAR_GC_THRESH1].data = &tbl->gc_thresh1; + t->neigh_vars[NEIGH_VAR_GC_THRESH2].data = &tbl->gc_thresh2; + t->neigh_vars[NEIGH_VAR_GC_THRESH3].data = &tbl->gc_thresh3; } if (handler) { diff --git a/net/ipv4/gre_demux.c b/net/ipv4/gre_demux.c index 4e9619bca732..0485bf7f8f03 100644 --- a/net/ipv4/gre_demux.c +++ b/net/ipv4/gre_demux.c @@ -68,6 +68,7 @@ void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi, skb_push(skb, hdr_len); + skb_reset_transport_header(skb); greh = (struct gre_base_hdr *)skb->data; greh->flags = tnl_flags_to_gre_flags(tpi->flags); greh->protocol = tpi->proto; diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 79c3d947a481..42b7bcf8045b 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -739,8 +739,6 @@ static void icmp_unreach(struct sk_buff *skb) /* fall through */ case 0: info = ntohs(icmph->un.frag.mtu); - if (!info) - goto out; } break; case ICMP_SR_FAILED: diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 6748d420f714..db710b059bab 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -1944,6 +1944,10 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr) rtnl_lock(); in_dev = ip_mc_find_dev(net, imr); + if (!in_dev) { + ret = -ENODEV; + goto out; + } ifindex = imr->imr_ifindex; for (imlp = &inet->mc_list; (iml = rtnl_dereference(*imlp)) != NULL; @@ -1961,16 +1965,14 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr) *imlp = iml->next_rcu; - if (in_dev) - ip_mc_dec_group(in_dev, group); + ip_mc_dec_group(in_dev, group); rtnl_unlock(); /* decrease mem now to avoid the memleak warning */ atomic_sub(sizeof(*iml), &sk->sk_omem_alloc); kfree_rcu(iml, rcu); return 0; } - if (!in_dev) - ret = -ENODEV; +out: rtnl_unlock(); return ret; } diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 0157a7af20a8..dd8c8c765799 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -169,6 +169,7 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn, hlist_for_each_entry_rcu(t, head, hash_node) { if (remote != t->parms.iph.daddr || + t->parms.iph.saddr != 0 || !(t->dev->flags & IFF_UP)) continue; @@ -185,10 +186,11 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn, head = &itn->tunnels[hash]; hlist_for_each_entry_rcu(t, head, hash_node) { - if ((local != t->parms.iph.saddr && - (local != t->parms.iph.daddr || - !ipv4_is_multicast(local))) || - !(t->dev->flags & IFF_UP)) + if ((local != t->parms.iph.saddr || t->parms.iph.daddr != 0) && + (local != t->parms.iph.daddr || !ipv4_is_multicast(local))) + continue; + + if (!(t->dev->flags & IFF_UP)) continue; if (!ip_tunnel_key_match(&t->parms, flags, key)) @@ -205,6 +207,8 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn, hlist_for_each_entry_rcu(t, head, hash_node) { if (t->parms.i_key != key || + t->parms.iph.saddr != 0 || + t->parms.iph.daddr != 0 || !(t->dev->flags & IFF_UP)) continue; diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 082239ffe34a..3162ea923ded 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1010,7 +1010,7 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu) const struct iphdr *iph = (const struct iphdr *) skb->data; struct flowi4 fl4; struct rtable *rt; - struct dst_entry *dst; + struct dst_entry *odst = NULL; bool new = false; bh_lock_sock(sk); @@ -1018,16 +1018,17 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu) if (!ip_sk_accept_pmtu(sk)) goto out; - rt = (struct rtable *) __sk_dst_get(sk); + odst = sk_dst_get(sk); - if (sock_owned_by_user(sk) || !rt) { + if (sock_owned_by_user(sk) || !odst) { __ipv4_sk_update_pmtu(skb, sk, mtu); goto out; } __build_flow_key(&fl4, sk, iph, 0, 0, 0, 0, 0); - if (!__sk_dst_check(sk, 0)) { + rt = (struct rtable *)odst; + if (odst->obsolete && odst->ops->check(odst, 0) == NULL) { rt = ip_route_output_flow(sock_net(sk), &fl4, sk); if (IS_ERR(rt)) goto out; @@ -1037,8 +1038,7 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu) __ip_rt_update_pmtu((struct rtable *) rt->dst.path, &fl4, mtu); - dst = dst_check(&rt->dst, 0); - if (!dst) { + if (!dst_check(&rt->dst, 0)) { if (new) dst_release(&rt->dst); @@ -1050,10 +1050,11 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu) } if (new) - __sk_dst_set(sk, &rt->dst); + sk_dst_set(sk, &rt->dst); out: bh_unlock_sock(sk); + dst_release(odst); } EXPORT_SYMBOL_GPL(ipv4_sk_update_pmtu); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index eb1dde37e678..9d2118e5fbc7 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1108,7 +1108,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (unlikely(tp->repair)) { if (tp->repair_queue == TCP_RECV_QUEUE) { copied = tcp_send_rcvq(sk, msg, size); - goto out; + goto out_nopush; } err = -EINVAL; @@ -1282,6 +1282,7 @@ wait_for_memory: out: if (copied) tcp_push(sk, flags, mss_now, tp->nonagle, size_goal); +out_nopush: release_sock(sk); return copied + copied_syn; diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 2e16afba182c..7832d941dbcd 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1106,7 +1106,7 @@ static bool tcp_check_dsack(struct sock *sk, const struct sk_buff *ack_skb, } /* D-SACK for already forgotten data... Do dumb counting. */ - if (dup_sack && tp->undo_marker && tp->undo_retrans && + if (dup_sack && tp->undo_marker && tp->undo_retrans > 0 && !after(end_seq_0, prior_snd_una) && after(end_seq_0, tp->undo_marker)) tp->undo_retrans--; @@ -1187,7 +1187,7 @@ static u8 tcp_sacktag_one(struct sock *sk, /* Account D-SACK for retransmitted packet. */ if (dup_sack && (sacked & TCPCB_RETRANS)) { - if (tp->undo_marker && tp->undo_retrans && + if (tp->undo_marker && tp->undo_retrans > 0 && after(end_seq, tp->undo_marker)) tp->undo_retrans--; if (sacked & TCPCB_SACKED_ACKED) @@ -1893,7 +1893,7 @@ static void tcp_clear_retrans_partial(struct tcp_sock *tp) tp->lost_out = 0; tp->undo_marker = 0; - tp->undo_retrans = 0; + tp->undo_retrans = -1; } void tcp_clear_retrans(struct tcp_sock *tp) @@ -2664,7 +2664,7 @@ static void tcp_enter_recovery(struct sock *sk, bool ece_ack) tp->prior_ssthresh = 0; tp->undo_marker = tp->snd_una; - tp->undo_retrans = tp->retrans_out; + tp->undo_retrans = tp->retrans_out ? : -1; if (inet_csk(sk)->icsk_ca_state < TCP_CA_CWR) { if (!ece_ack) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 306dd5dead7d..8fcfc91964ec 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2526,8 +2526,6 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb) if (!tp->retrans_stamp) tp->retrans_stamp = TCP_SKB_CB(skb)->when; - tp->undo_retrans += tcp_skb_pcount(skb); - /* snd_nxt is stored to detect loss of retransmitted segment, * see tcp_input.c tcp_sacktag_write_queue(). */ @@ -2535,6 +2533,10 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb) } else if (err != -EBUSY) { NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPRETRANSFAIL); } + + if (tp->undo_retrans < 0) + tp->undo_retrans = 0; + tp->undo_retrans += tcp_skb_pcount(skb); return err; } diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index f6dfe525584f..668af516f094 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1587,8 +1587,11 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) goto csum_error; - if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) + if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) { + UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS, + is_udplite); goto drop; + } rc = 0; diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 08b367c6b9cf..617f0958e164 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -1301,8 +1301,17 @@ int igmp6_event_query(struct sk_buff *skb) len = ntohs(ipv6_hdr(skb)->payload_len) + sizeof(struct ipv6hdr); len -= skb_network_header_len(skb); - /* Drop queries with not link local source */ - if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) + /* RFC3810 6.2 + * Upon reception of an MLD message that contains a Query, the node + * checks if the source address of the message is a valid link-local + * address, if the Hop Limit is set to 1, and if the Router Alert + * option is present in the Hop-By-Hop Options header of the IPv6 + * packet. If any of these checks fails, the packet is dropped. + */ + if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL) || + ipv6_hdr(skb)->hop_limit != 1 || + !(IP6CB(skb)->flags & IP6SKB_ROUTERALERT) || + IP6CB(skb)->ra != htons(IPV6_OPT_ROUTERALERT_MLD)) return -EINVAL; idev = __in6_dev_get(skb->dev); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index c2bd28fd43e4..b4481df3d5fa 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -673,8 +673,11 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) goto csum_error; } - if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) + if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) { + UDP6_INC_STATS_BH(sock_net(sk), + UDP_MIB_RCVBUFERRORS, is_udplite); goto drop; + } skb_dst_drop(skb); @@ -689,6 +692,7 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) bh_unlock_sock(sk); return rc; + csum_error: UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite); drop: diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 950909f04ee6..13752d96275e 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -1365,7 +1365,7 @@ static int pppol2tp_setsockopt(struct socket *sock, int level, int optname, int err; if (level != SOL_PPPOL2TP) - return udp_prot.setsockopt(sk, level, optname, optval, optlen); + return -EINVAL; if (optlen < sizeof(int)) return -EINVAL; @@ -1491,7 +1491,7 @@ static int pppol2tp_getsockopt(struct socket *sock, int level, int optname, struct pppol2tp_session *ps; if (level != SOL_PPPOL2TP) - return udp_prot.getsockopt(sk, level, optname, optval, optlen); + return -EINVAL; if (get_user(len, optlen)) return -EFAULT; diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index e8c9f9704216..837ff9a57503 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -636,7 +636,7 @@ static unsigned int netlink_poll(struct file *file, struct socket *sock, while (nlk->cb_running && netlink_dump_space(nlk)) { err = netlink_dump(sk); if (err < 0) { - sk->sk_err = err; + sk->sk_err = -err; sk->sk_error_report(sk); break; } @@ -2480,7 +2480,7 @@ static int netlink_recvmsg(struct kiocb *kiocb, struct socket *sock, atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf / 2) { ret = netlink_dump(sk); if (ret) { - sk->sk_err = ret; + sk->sk_err = -ret; sk->sk_error_report(sk); } } diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c index c36856a457ca..e70d8b18e962 100644 --- a/net/openvswitch/actions.c +++ b/net/openvswitch/actions.c @@ -551,6 +551,8 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb, case OVS_ACTION_ATTR_SAMPLE: err = sample(dp, skb, a); + if (unlikely(err)) /* skb already freed. */ + return err; break; } diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index fe95b6c224a7..493b5141a618 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2007-2013 Nicira, Inc. + * Copyright (c) 2007-2014 Nicira, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public @@ -276,7 +276,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb) OVS_CB(skb)->flow = flow; OVS_CB(skb)->pkt_key = &key; - ovs_flow_stats_update(OVS_CB(skb)->flow, skb); + ovs_flow_stats_update(OVS_CB(skb)->flow, key.tp.flags, skb); ovs_execute_actions(dp, skb); stats_counter = &stats->n_hit; @@ -889,8 +889,11 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info) } /* The unmasked key has to be the same for flow updates. */ if (unlikely(!ovs_flow_cmp_unmasked_key(flow, &match))) { - error = -EEXIST; - goto err_unlock_ovs; + flow = ovs_flow_tbl_lookup_exact(&dp->table, &match); + if (!flow) { + error = -ENOENT; + goto err_unlock_ovs; + } } /* Update actions. */ old_acts = ovsl_dereference(flow->sf_acts); @@ -981,16 +984,12 @@ static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info) goto err_unlock_ovs; } /* Check that the flow exists. */ - flow = ovs_flow_tbl_lookup(&dp->table, &key); + flow = ovs_flow_tbl_lookup_exact(&dp->table, &match); if (unlikely(!flow)) { error = -ENOENT; goto err_unlock_ovs; } - /* The unmasked key has to be the same for flow updates. */ - if (unlikely(!ovs_flow_cmp_unmasked_key(flow, &match))) { - error = -EEXIST; - goto err_unlock_ovs; - } + /* Update actions, if present. */ if (likely(acts)) { old_acts = ovsl_dereference(flow->sf_acts); @@ -1063,8 +1062,8 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info) goto unlock; } - flow = ovs_flow_tbl_lookup(&dp->table, &key); - if (!flow || !ovs_flow_cmp_unmasked_key(flow, &match)) { + flow = ovs_flow_tbl_lookup_exact(&dp->table, &match); + if (!flow) { err = -ENOENT; goto unlock; } @@ -1113,8 +1112,8 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info) goto unlock; } - flow = ovs_flow_tbl_lookup(&dp->table, &key); - if (unlikely(!flow || !ovs_flow_cmp_unmasked_key(flow, &match))) { + flow = ovs_flow_tbl_lookup_exact(&dp->table, &match); + if (unlikely(!flow)) { err = -ENOENT; goto unlock; } diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index 334751cb1528..d07ab538fc9d 100644 --- a/net/openvswitch/flow.c +++ b/net/openvswitch/flow.c @@ -61,10 +61,10 @@ u64 ovs_flow_used_time(unsigned long flow_jiffies) #define TCP_FLAGS_BE16(tp) (*(__be16 *)&tcp_flag_word(tp) & htons(0x0FFF)) -void ovs_flow_stats_update(struct sw_flow *flow, struct sk_buff *skb) +void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags, + struct sk_buff *skb) { struct flow_stats *stats; - __be16 tcp_flags = flow->key.tp.flags; int node = numa_node_id(); stats = rcu_dereference(flow->stats[node]); diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h index ac395d2cd821..5e5aaed3a85b 100644 --- a/net/openvswitch/flow.h +++ b/net/openvswitch/flow.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2007-2013 Nicira, Inc. + * Copyright (c) 2007-2014 Nicira, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public @@ -180,7 +180,8 @@ struct arp_eth_header { unsigned char ar_tip[4]; /* target IP address */ } __packed; -void ovs_flow_stats_update(struct sw_flow *, struct sk_buff *); +void ovs_flow_stats_update(struct sw_flow *, __be16 tcp_flags, + struct sk_buff *); void ovs_flow_stats_get(const struct sw_flow *, struct ovs_flow_stats *, unsigned long *used, __be16 *tcp_flags); void ovs_flow_stats_clear(struct sw_flow *); diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c index 574c3abc9b30..cf2d853646f0 100644 --- a/net/openvswitch/flow_table.c +++ b/net/openvswitch/flow_table.c @@ -456,6 +456,22 @@ struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *tbl, return ovs_flow_tbl_lookup_stats(tbl, key, &n_mask_hit); } +struct sw_flow *ovs_flow_tbl_lookup_exact(struct flow_table *tbl, + struct sw_flow_match *match) +{ + struct table_instance *ti = rcu_dereference_ovsl(tbl->ti); + struct sw_flow_mask *mask; + struct sw_flow *flow; + + /* Always called under ovs-mutex. */ + list_for_each_entry(mask, &tbl->mask_list, list) { + flow = masked_flow_lookup(ti, match->key, mask); + if (flow && ovs_flow_cmp_unmasked_key(flow, match)) /* Found */ + return flow; + } + return NULL; +} + int ovs_flow_tbl_num_masks(const struct flow_table *table) { struct sw_flow_mask *mask; diff --git a/net/openvswitch/flow_table.h b/net/openvswitch/flow_table.h index ca8a5820f615..5918bff7f3f6 100644 --- a/net/openvswitch/flow_table.h +++ b/net/openvswitch/flow_table.h @@ -76,7 +76,8 @@ struct sw_flow *ovs_flow_tbl_lookup_stats(struct flow_table *, u32 *n_mask_hit); struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *, const struct sw_flow_key *); - +struct sw_flow *ovs_flow_tbl_lookup_exact(struct flow_table *tbl, + struct sw_flow_match *match); bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow, struct sw_flow_match *match); diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c index 35ec4fed09e2..f49148a07da2 100644 --- a/net/openvswitch/vport-gre.c +++ b/net/openvswitch/vport-gre.c @@ -110,6 +110,22 @@ static int gre_rcv(struct sk_buff *skb, return PACKET_RCVD; } +/* Called with rcu_read_lock and BH disabled. */ +static int gre_err(struct sk_buff *skb, u32 info, + const struct tnl_ptk_info *tpi) +{ + struct ovs_net *ovs_net; + struct vport *vport; + + ovs_net = net_generic(dev_net(skb->dev), ovs_net_id); + vport = rcu_dereference(ovs_net->vport_net.gre_vport); + + if (unlikely(!vport)) + return PACKET_REJECT; + else + return PACKET_RCVD; +} + static int gre_tnl_send(struct vport *vport, struct sk_buff *skb) { struct net *net = ovs_dp_get_net(vport->dp); @@ -186,6 +202,7 @@ error: static struct gre_cisco_protocol gre_protocol = { .handler = gre_rcv, + .err_handler = gre_err, .priority = 1, }; diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c index 85c64658bd0b..b6842fdb53d4 100644 --- a/net/sctp/ulpevent.c +++ b/net/sctp/ulpevent.c @@ -366,9 +366,10 @@ fail: * specification [SCTP] and any extensions for a list of possible * error formats. */ -struct sctp_ulpevent *sctp_ulpevent_make_remote_error( - const struct sctp_association *asoc, struct sctp_chunk *chunk, - __u16 flags, gfp_t gfp) +struct sctp_ulpevent * +sctp_ulpevent_make_remote_error(const struct sctp_association *asoc, + struct sctp_chunk *chunk, __u16 flags, + gfp_t gfp) { struct sctp_ulpevent *event; struct sctp_remote_error *sre; @@ -387,8 +388,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_remote_error( /* Copy the skb to a new skb with room for us to prepend * notification with. */ - skb = skb_copy_expand(chunk->skb, sizeof(struct sctp_remote_error), - 0, gfp); + skb = skb_copy_expand(chunk->skb, sizeof(*sre), 0, gfp); /* Pull off the rest of the cause TLV from the chunk. */ skb_pull(chunk->skb, elen); @@ -399,62 +399,21 @@ struct sctp_ulpevent *sctp_ulpevent_make_remote_error( event = sctp_skb2event(skb); sctp_ulpevent_init(event, MSG_NOTIFICATION, skb->truesize); - sre = (struct sctp_remote_error *) - skb_push(skb, sizeof(struct sctp_remote_error)); + sre = (struct sctp_remote_error *) skb_push(skb, sizeof(*sre)); /* Trim the buffer to the right length. */ - skb_trim(skb, sizeof(struct sctp_remote_error) + elen); + skb_trim(skb, sizeof(*sre) + elen); - /* Socket Extensions for SCTP - * 5.3.1.3 SCTP_REMOTE_ERROR - * - * sre_type: - * It should be SCTP_REMOTE_ERROR. - */ + /* RFC6458, Section 6.1.3. SCTP_REMOTE_ERROR */ |