diff options
Diffstat (limited to 'net')
42 files changed, 495 insertions, 199 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 5391ca43336a..6d6f26531de2 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -1608,7 +1608,6 @@ void br_multicast_init(struct net_bridge *br) br_multicast_querier_expired, (unsigned long)br); setup_timer(&br->multicast_query_timer, br_multicast_query_expired, (unsigned long)br); - br_mdb_init(); } void br_multicast_open(struct net_bridge *br) @@ -1633,7 +1632,6 @@ void br_multicast_stop(struct net_bridge *br) del_timer_sync(&br->multicast_querier_timer); del_timer_sync(&br->multicast_query_timer); - br_mdb_uninit(); spin_lock_bh(&br->multicast_lock); mdb = mlock_dereference(br->mdb, br); if (!mdb) diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 97ba0189c6f7..5dc66abcc9e2 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -299,10 +299,21 @@ struct rtnl_link_ops br_link_ops __read_mostly = { int __init br_netlink_init(void) { - return rtnl_link_register(&br_link_ops); + int err; + + br_mdb_init(); + err = rtnl_link_register(&br_link_ops); + if (err) + goto out; + + return 0; +out: + br_mdb_uninit(); + return err; } void __exit br_netlink_fini(void) { + br_mdb_uninit(); rtnl_link_unregister(&br_link_ops); } diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 8d83be5ffedc..711094aed41a 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -526,6 +526,12 @@ static inline bool br_multicast_is_router(struct net_bridge *br) { return 0; } +static inline void br_mdb_init(void) +{ +} +static inline void br_mdb_uninit(void) +{ +} #endif /* br_netfilter.c */ diff --git a/net/core/dev.c b/net/core/dev.c index 515473ee52cb..f64e439b4a00 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6121,6 +6121,14 @@ struct netdev_queue *dev_ingress_queue_create(struct net_device *dev) static const struct ethtool_ops default_ethtool_ops; +void netdev_set_default_ethtool_ops(struct net_device *dev, + const struct ethtool_ops *ops) +{ + if (dev->ethtool_ops == &default_ethtool_ops) + dev->ethtool_ops = ops; +} +EXPORT_SYMBOL_GPL(netdev_set_default_ethtool_ops); + /** * alloc_netdev_mqs - allocate network device * @sizeof_priv: size of private data to allocate space for diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index cc06a47f1216..a8e4f2665d5e 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -823,9 +823,9 @@ int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg) if (!ifa) { ret = -ENOBUFS; ifa = inet_alloc_ifa(); - INIT_HLIST_NODE(&ifa->hash); if (!ifa) break; + INIT_HLIST_NODE(&ifa->hash); if (colon) memcpy(ifa->ifa_label, ifr.ifr_name, IFNAMSIZ); else diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 3c9d20880283..d9c4f113d709 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -590,7 +590,7 @@ static int do_ip_setsockopt(struct sock *sk, int level, case IP_TTL: if (optlen < 1) goto e_inval; - if (val != -1 && (val < 0 || val > 255)) + if (val != -1 && (val < 1 || val > 255)) goto e_inval; inet->uc_ttl = val; break; diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index d763701cff1b..a2e50ae80b53 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -136,6 +136,8 @@ __be32 ic_myaddr = NONE; /* My IP address */ static __be32 ic_netmask = NONE; /* Netmask for local subnet */ __be32 ic_gateway = NONE; /* Gateway IP address */ +__be32 ic_addrservaddr = NONE; /* IP Address of the IP addresses'server */ + __be32 ic_servaddr = NONE; /* Boot server IP address */ __be32 root_server_addr = NONE; /* Address of NFS server */ @@ -558,6 +560,7 @@ ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt if (ic_myaddr == NONE) ic_myaddr = tip; ic_servaddr = sip; + ic_addrservaddr = sip; ic_got_reply = IC_RARP; drop_unlock: @@ -1068,7 +1071,7 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str ic_servaddr = server_id; #ifdef IPCONFIG_DEBUG printk("DHCP: Offered address %pI4 by server %pI4\n", - &ic_myaddr, &ic_servaddr); + &ic_myaddr, &b->iph.saddr); #endif /* The DHCP indicated server address takes * precedence over the bootp header one if @@ -1113,6 +1116,7 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str ic_dev = dev; ic_myaddr = b->your_ip; ic_servaddr = b->server_ip; + ic_addrservaddr = b->iph.saddr; if (ic_gateway == NONE && b->relay_ip) ic_gateway = b->relay_ip; if (ic_nameservers[0] == NONE) @@ -1268,7 +1272,7 @@ static int __init ic_dynamic(void) printk("IP-Config: Got %s answer from %pI4, ", ((ic_got_reply & IC_RARP) ? "RARP" : (ic_proto_enabled & IC_USE_DHCP) ? "DHCP" : "BOOTP"), - &ic_servaddr); + &ic_addrservaddr); pr_cont("my address is %pI4\n", &ic_myaddr); return 0; diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c index 51f13f8ec724..04b18c1ac345 100644 --- a/net/ipv4/netfilter/ipt_REJECT.c +++ b/net/ipv4/netfilter/ipt_REJECT.c @@ -81,6 +81,7 @@ static void send_reset(struct sk_buff *oldskb, int hook) niph->saddr = oiph->daddr; niph->daddr = oiph->saddr; + skb_reset_transport_header(nskb); tcph = (struct tcphdr *)skb_put(nskb, sizeof(struct tcphdr)); memset(tcph, 0, sizeof(*tcph)); tcph->source = oth->dest; diff --git a/net/ipv4/netfilter/iptable_nat.c b/net/ipv4/netfilter/iptable_nat.c index da2c8a368f68..eeaff7e4acb5 100644 --- a/net/ipv4/netfilter/iptable_nat.c +++ b/net/ipv4/netfilter/iptable_nat.c @@ -124,23 +124,28 @@ nf_nat_ipv4_fn(unsigned int hooknum, ret = nf_nat_rule_find(skb, hooknum, in, out, ct); if (ret != NF_ACCEPT) return ret; - } else + } else { pr_debug("Already setup manip %s for ct %p\n", maniptype == NF_NAT_MANIP_SRC ? "SRC" : "DST", ct); + if (nf_nat_oif_changed(hooknum, ctinfo, nat, out)) + goto oif_changed; + } break; default: /* ESTABLISHED */ NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED || ctinfo == IP_CT_ESTABLISHED_REPLY); - if (nf_nat_oif_changed(hooknum, ctinfo, nat, out)) { - nf_ct_kill_acct(ct, ctinfo, skb); - return NF_DROP; - } + if (nf_nat_oif_changed(hooknum, ctinfo, nat, out)) + goto oif_changed; } return nf_nat_packet(ct, ctinfo, hooknum, skb); + +oif_changed: + nf_ct_kill_acct(ct, ctinfo, skb); + return NF_DROP; } static unsigned int diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 1ca253635f7a..2aa69c8ae60c 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1428,12 +1428,12 @@ static void tcp_service_net_dma(struct sock *sk, bool wait) } #endif -static inline struct sk_buff *tcp_recv_skb(struct sock *sk, u32 seq, u32 *off) +static struct sk_buff *tcp_recv_skb(struct sock *sk, u32 seq, u32 *off) { struct sk_buff *skb; u32 offset; - skb_queue_walk(&sk->sk_receive_queue, skb) { + while ((skb = skb_peek(&sk->sk_receive_queue)) != NULL) { offset = seq - TCP_SKB_CB(skb)->seq; if (tcp_hdr(skb)->syn) offset--; @@ -1441,6 +1441,11 @@ static inline struct sk_buff *tcp_recv_skb(struct sock *sk, u32 seq, u32 *off) *off = offset; return skb; } + /* This looks weird, but this can happen if TCP collapsing + * splitted a fat GRO packet, while we released socket lock + * in skb_splice_bits() + */ + sk_eat_skb(sk, skb, false); } return NULL; } @@ -1482,7 +1487,7 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, break; } used = recv_actor(desc, skb, offset, len); - if (used < 0) { + if (used <= 0) { if (!copied) copied = used; break; @@ -1520,8 +1525,10 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, tcp_rcv_space_adjust(sk); /* Clean up data we have read: This will do ACK frames. */ - if (copied > 0) + if (copied > 0) { + tcp_recv_skb(sk, seq, &offset); tcp_cleanup_rbuf(sk, copied); + } return copied; } EXPORT_SYMBOL(tcp_read_sock); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index a28e4db8a952..18f97ca76b00 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5543,7 +5543,7 @@ slow_path: if (len < (th->doff << 2) || tcp_checksum_complete_user(sk, skb)) goto csum_error; - if (!th->ack) + if (!th->ack && !th->rst) goto discard; /* @@ -5988,7 +5988,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, goto discard; } - if (!th->ack) + if (!th->ack && !th->rst) goto discard; if (!tcp_validate_incoming(sk, skb, th, 0)) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 408cac4ae00a..420e56326384 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -154,6 +154,11 @@ static void addrconf_type_change(struct net_device *dev, unsigned long event); static int addrconf_ifdown(struct net_device *dev, int how); +static struct rt6_info *addrconf_get_prefix_route(const struct in6_addr *pfx, + int plen, + const struct net_device *dev, + u32 flags, u32 noflags); + static void addrconf_dad_start(struct inet6_ifaddr *ifp); static void addrconf_dad_timer(unsigned long data); static void addrconf_dad_completed(struct inet6_ifaddr *ifp); @@ -250,12 +255,6 @@ static inline bool addrconf_qdisc_ok(const struct net_device *dev) return !qdisc_tx_is_noop(dev); } -/* Check if a route is valid prefix route */ -static inline int addrconf_is_prefix_route(const struct rt6_info *rt) -{ - return (rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0; -} - static void addrconf_del_timer(struct inet6_ifaddr *ifp) { if (del_timer(&ifp->timer)) @@ -941,17 +940,15 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) if ((ifp->flags & IFA_F_PERMANENT) && onlink < 1) { struct in6_addr prefix; struct rt6_info *rt; - struct net *net = dev_net(ifp->idev->dev); - struct flowi6 fl6 = {}; ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len); - fl6.flowi6_oif = ifp->idev->dev->ifindex; - fl6.daddr = prefix; - rt = (struct rt6_info *)ip6_route_lookup(net, &fl6, - RT6_LOOKUP_F_IFACE); - if (rt != net->ipv6.ip6_null_entry && - addrconf_is_prefix_route(rt)) { + rt = addrconf_get_prefix_route(&prefix, + ifp->prefix_len, + ifp->idev->dev, + 0, RTF_GATEWAY | RTF_DEFAULT); + + if (rt) { if (onlink == 0) { ip6_del_rt(rt); rt = NULL; @@ -1877,7 +1874,7 @@ static struct rt6_info *addrconf_get_prefix_route(const struct in6_addr *pfx, continue; if ((rt->rt6i_flags & flags) != flags) continue; - if ((noflags != 0) && ((rt->rt6i_flags & flags) != 0)) + if ((rt->rt6i_flags & noflags) != 0) continue; dst_hold(&rt->dst); break; diff --git a/net/ipv6/netfilter/ip6t_NPT.c b/net/ipv6/netfilter/ip6t_NPT.c index e9486915eff6..7302b0b7b642 100644 --- a/net/ipv6/netfilter/ip6t_NPT.c +++ b/net/ipv6/netfilter/ip6t_NPT.c @@ -14,42 +14,23 @@ #include <linux/netfilter_ipv6/ip6t_NPT.h> #include <linux/netfilter/x_tables.h> -static __sum16 csum16_complement(__sum16 a) -{ - return (__force __sum16)(0xffff - (__force u16)a); -} - -static __sum16 csum16_add(__sum16 a, __sum16 b) -{ - u16 sum; - - sum = (__force u16)a + (__force u16)b; - sum += (__force u16)a < (__force u16)b; - return (__force __sum16)sum; -} - -static __sum16 csum16_sub(__sum16 a, __sum16 b) -{ - return csum16_add(a, csum16_complement(b)); -} - static int ip6t_npt_checkentry(const struct xt_tgchk_param *par) { struct ip6t_npt_tginfo *npt = par->targinfo; - __sum16 src_sum = 0, dst_sum = 0; + __wsum src_sum = 0, dst_sum = 0; unsigned int i; if (npt->src_pfx_len > 64 || npt->dst_pfx_len > 64) return -EINVAL; for (i = 0; i < ARRAY_SIZE(npt->src_pfx.in6.s6_addr16); i++) { - src_sum = csum16_add(src_sum, - (__force __sum16)npt->src_pfx.in6.s6_addr16[i]); - dst_sum = csum16_add(dst_sum, - (__force __sum16)npt->dst_pfx.in6.s6_addr16[i]); + src_sum = csum_add(src_sum, + (__force __wsum)npt->src_pfx.in6.s6_addr16[i]); + dst_sum = csum_add(dst_sum, + (__force __wsum)npt->dst_pfx.in6.s6_addr16[i]); } - npt->adjustment = csum16_sub(src_sum, dst_sum); + npt->adjustment = (__force __sum16) csum_sub(src_sum, dst_sum); return 0; } @@ -85,7 +66,7 @@ static bool ip6t_npt_map_pfx(const struct ip6t_npt_tginfo *npt, return false; } - sum = csum16_add((__force __sum16)addr->s6_addr16[idx], + sum = (__force __sum16) csum_add((__force __wsum)addr->s6_addr16[idx], npt->adjustment); if (sum == CSUM_MANGLED_0) sum = 0; diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c index fd4fb34c51c7..029623dbd411 100644 --- a/net/ipv6/netfilter/ip6t_REJECT.c +++ b/net/ipv6/netfilter/ip6t_REJECT.c @@ -132,6 +132,7 @@ static void send_reset(struct net *net, struct sk_buff *oldskb) ip6h->saddr = oip6h->daddr; ip6h->daddr = oip6h->saddr; + skb_reset_transport_header(nskb); tcph = (struct tcphdr *)skb_put(nskb, sizeof(struct tcphdr)); /* Truncate to length (no data) */ tcph->doff = sizeof(struct tcphdr)/4; diff --git a/net/ipv6/netfilter/ip6table_nat.c b/net/ipv6/netfilter/ip6table_nat.c index 6c8ae24b85eb..e0e788d25b14 100644 --- a/net/ipv6/netfilter/ip6table_nat.c +++ b/net/ipv6/netfilter/ip6table_nat.c @@ -127,23 +127,28 @@ nf_nat_ipv6_fn(unsigned int hooknum, ret = nf_nat_rule_find(skb, hooknum, in, out, ct); if (ret != NF_ACCEPT) return ret; - } else + } else { pr_debug("Already setup manip %s for ct %p\n", maniptype == NF_NAT_MANIP_SRC ? "SRC" : "DST", ct); + if (nf_nat_oif_changed(hooknum, ctinfo, nat, out)) + goto oif_changed; + } break; default: /* ESTABLISHED */ NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED || ctinfo == IP_CT_ESTABLISHED_REPLY); - if (nf_nat_oif_changed(hooknum, ctinfo, nat, out)) { - nf_ct_kill_acct(ct, ctinfo, skb); - return NF_DROP; - } + if (nf_nat_oif_changed(hooknum, ctinfo, nat, out)) + goto oif_changed; } return nf_nat_packet(ct, ctinfo, hooknum, skb); + +oif_changed: + nf_ct_kill_acct(ct, ctinfo, skb); + return NF_DROP; } static unsigned int diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c index 00ee17c3e893..137e245860ab 100644 --- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c +++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c @@ -81,8 +81,8 @@ static int ipv6_get_l4proto(const struct sk_buff *skb, unsigned int nhoff, } protoff = ipv6_skip_exthdr(skb, extoff, &nexthdr, &frag_off); /* - * (protoff == skb->len) mean that the packet doesn't have no data - * except of IPv6 & ext headers. but it's tracked anyway. - YK + * (protoff == skb->len) means the packet has not data, just + * IPv6 and possibly extensions headers, but it is tracked anyway */ if (protoff < 0 || (frag_off & htons(~0x7)) != 0) { pr_debug("ip6_conntrack_core: can't find proto in pkt\n"); diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 22c8ea951185..3dacecc99065 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -311,7 +311,10 @@ found: else fq->q.fragments = skb; - skb->dev = NULL; + if (skb->dev) { + fq->iif = skb->dev->ifindex; + skb->dev = NULL; + } fq->q.stamp = skb->tstamp; fq->q.meat += skb->len; if (payload_len > fq->q.max_size) diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c index 3ad1f9db5f8b..df082508362d 100644 --- a/net/iucv/iucv.c +++ b/net/iucv/iucv.c @@ -1806,7 +1806,7 @@ static void iucv_external_interrupt(struct ext_code ext_code, struct iucv_irq_data *p; struct iucv_irq_list *work; - kstat_cpu(smp_processor_id()).irqs[EXTINT_IUC]++; + inc_irq_stat(IRQEXT_IUC); p = iucv_irq_data[smp_processor_id()]; if (p->ippathid >= iucv_max_pathid) { WARN_ON(p->ippathid >= iucv_max_pathid); diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 5c61677487cf..47e0aca614b7 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1009,6 +1009,8 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) if (old_probe_resp) kfree_rcu(old_probe_resp, rcu_head); + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + sta_info_flush(local, vlan); sta_info_flush(local, sdata); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 53f03120db55..80e55527504b 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -4,6 +4,7 @@ #include <linux/nl80211.h> #include <linux/export.h> +#include <linux/rtnetlink.h> #include <net/cfg80211.h> #include "ieee80211_i.h" #include "driver-ops.h" @@ -197,6 +198,15 @@ static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) ctx = container_of(conf, struct ieee80211_chanctx, conf); + if (sdata->vif.type == NL80211_IFTYPE_AP) { + struct ieee80211_sub_if_data *vlan; + + /* for the VLAN list */ + ASSERT_RTNL(); + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + rcu_assign_pointer(vlan->vif.chanctx_conf, NULL); + } + ieee80211_unassign_vif_chanctx(sdata, ctx); if (ctx->refcount == 0) ieee80211_free_chanctx(local, ctx); @@ -316,6 +326,15 @@ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, goto out; } + if (sdata->vif.type == NL80211_IFTYPE_AP) { + struct ieee80211_sub_if_data *vlan; + + /* for the VLAN list */ + ASSERT_RTNL(); + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + rcu_assign_pointer(vlan->vif.chanctx_conf, &ctx->conf); + } + ieee80211_recalc_smps_chanctx(local, ctx); out: mutex_unlock(&local->chanctx_mtx); @@ -331,6 +350,25 @@ void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) mutex_unlock(&sdata->local->chanctx_mtx); } +void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_sub_if_data *ap; + struct ieee80211_chanctx_conf *conf; + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP_VLAN || !sdata->bss)) + return; + + ap = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); + + mutex_lock(&local->chanctx_mtx); + + conf = rcu_dereference_protected(ap->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + rcu_assign_pointer(sdata->vif.chanctx_conf, conf); + mutex_unlock(&local->chanctx_mtx); +} + void ieee80211_iter_chan_contexts_atomic( struct ieee80211_hw *hw, void (*iter)(struct ieee80211_hw *hw, diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 8881fc77fb13..6b7644e818d8 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -703,8 +703,8 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata) sdata_info(sdata, "No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge)\n"); - ieee80211_request_internal_scan(sdata, - ifibss->ssid, ifibss->ssid_len, NULL); + ieee80211_request_ibss_scan(sdata, ifibss->ssid, ifibss->ssid_len, + NULL); } static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) @@ -802,9 +802,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) IEEE80211_SCAN_INTERVAL)) { sdata_info(sdata, "Trigger new scan to find an IBSS to join\n"); - ieee80211_request_internal_scan(sdata, - ifibss->ssid, ifibss->ssid_len, - ifibss->fixed_channel ? ifibss->channel : NULL); + ieee80211_request_ibss_scan(sdata, ifibss->ssid, + ifibss->ssid_len, chan); } else { int interval = IEEE80211_SCAN_INTERVAL; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 42d0d0267730..8563b9a5cac3 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -92,8 +92,6 @@ struct ieee80211_bss { u32 device_ts; - u8 dtim_period; - bool wmm_used; bool uapsd_supported; @@ -140,7 +138,6 @@ enum ieee80211_bss_corrupt_data_flags { /** * enum ieee80211_valid_data_flags - BSS valid data flags - * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE @@ -151,7 +148,6 @@ enum ieee80211_bss_corrupt_data_flags { * beacon/probe response. */ enum ieee80211_bss_valid_data_flags { - IEEE80211_BSS_VALID_DTIM = BIT(0), IEEE80211_BSS_VALID_WMM = BIT(1), IEEE80211_BSS_VALID_RATES = BIT(2), IEEE80211_BSS_VALID_ERP = BIT(3) @@ -440,6 +436,7 @@ struct ieee80211_if_managed { unsigned long timers_running; /* used for quiesce/restart */ bool powersave; /* powersave requested for this iface */ bool broken_ap; /* AP is broken -- turn off powersave */ + u8 dtim_period; enum ieee80211_smps_mode req_smps, /* requested smps mode */ driver_smps_mode; /* smps mode request */ @@ -773,6 +770,10 @@ struct ieee80211_sub_if_data { u32 mntr_flags; } u; + spinlock_t cleanup_stations_lock; + struct list_head cleanup_stations; + struct work_struct cleanup_stations_wk; + #ifdef CONFIG_MAC80211_DEBUGFS struct { struct dentry *dir; @@ -1329,9 +1330,9 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, /* scan/BSS handling */ void ieee80211_scan_work(struct work_struct *work); -int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, - const u8 *ssid, u8 ssid_len, - struct ieee80211_channel *chan); +int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, + const u8 *ssid, u8 ssid_len, + struct ieee80211_channel *chan); int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, struct cfg80211_scan_request *req); void ieee80211_scan_cancel(struct ieee80211_local *local); @@ -1628,6 +1629,7 @@ ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, const struct cfg80211_chan_def *chandef, enum ieee80211_chanctx_mode mode); void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); +void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata); void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *chanctx); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 09a80b55cf5a..8be854e86cd9 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -207,17 +207,8 @@ void ieee80211_recalc_idle(struct ieee80211_local *local) static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) { - int meshhdrlen; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - meshhdrlen = (sdata->vif.type == NL80211_IFTYPE_MESH_POINT) ? 5 : 0; - - /* FIX: what would be proper limits for MTU? - * This interface uses 802.3 frames. */ - if (new_mtu < 256 || - new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) { + if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN) return -EINVAL; - } dev->mtu = new_mtu; return 0; @@ -586,11 +577,13 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: - /* no need to tell driver, but set carrier */ - if (rtnl_dereference(sdata->bss->beacon)) + /* no need to tell driver, but set carrier and chanctx */ + if (rtnl_dereference(sdata->bss->beacon)) { + ieee80211_vif_vlan_copy_chanctx(sdata); netif_carrier_on(dev); - else + } else { netif_carrier_off(dev); + } break; case NL80211_IFTYPE_MONITOR: if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) { @@ -839,6 +832,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: list_del(&sdata->u.vlan.list); + rcu_assign_pointer(sdata->vif.chanctx_conf, NULL); /* no need to tell driver */ break; case NL80211_IFTYPE_MONITOR: @@ -865,20 +859,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, cancel_work_sync(&sdata->work); /* * When we get here, the interface is marked down. - * Call rcu_barrier() to wait both for the RX path + * Call synchronize_rcu() to wait for the RX path * should it be using the interface and enqueuing - * frames at this very time on another CPU, and - * for the sta free call_rcu callbacks. - */ - rcu_barrier(); - - /* - * free_sta_rcu() enqueues a work for the actual - * sta cleanup, so we need to flush it while - * sdata is still valid. + * frames at this very time on another CPU. */ - flush_workqueue(local->workqueue); - + synchronize_rcu(); skb_queue_purge(&sdata->skb_queue); /* @@ -1498,6 +1483,15 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, mutex_unlock(&local->iflist_mtx); } +static void ieee80211_cleanup_sdata_stas_wk(struct work_struct *wk) +{ + struct ieee80211_sub_if_data *sdata; + + sdata = container_of(wk, struct ieee80211_sub_if_data, cleanup_stations_wk); + + ieee80211_cleanup_sdata_stas(sdata); +} + int ieee80211_if_add(struct ieee80211_local *local, const char *name, struct wireless_dev **new_wdev, enum nl80211_iftype type, struct vif_params *params) @@ -1573,6 +1567,10 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, INIT_LIST_HEAD(&sdata->key_list); + spin_lock_init(&sdata->cleanup_stations_lock); + INIT_LIST_HEAD(&sdata->cleanup_stations); + INIT_WORK(&sdata->cleanup_stations_wk, ieee80211_cleanup_sdata_stas_wk); + for (i = 0; i < IEEE80211_NUM_BANDS; i++) { struct ieee80211_supported_band *sband; sband = local->hw.wiphy->bands[i]; diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 1bf03f9ff3ba..649ad513547f 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -163,7 +163,7 @@ int mesh_rmc_init(struct ieee80211_sub_if_data *sdata) return -ENOMEM; sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1; for (i = 0; i < RMC_BUCKETS; i++) - INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i].list); + INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i]); return 0; } @@ -177,7 +177,7 @@ void mesh_rmc_free(struct ieee80211_sub_if_data *sdata) return; for (i = 0; i < RMC_BUCKETS; i++) - list_for_each_entry_safe(p, n, &rmc->bucket[i].list, list) { + list_for_each_entry_safe(p, n, &rmc->bucket[i], list) { list_del(&p->list); kmem_cache_free(rm_cache, p); } @@ -210,7 +210,7 @@ int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr, /* Don't care about endianness since only match matters */ memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum)); idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask; - list_for_each_entry_safe(p, n, &rmc->bucket[idx].list, list) { + list_for_each_entry_safe(p, n, &rmc->bucket[idx], list) { ++entries; if (time_after(jiffies, p->exp_time) || (entries == RMC_QUEUE_MAX_LEN)) { @@ -229,7 +229,7 @@ int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr, p->seqnum = seqnum; p->exp_time = jiffies + RMC_TIMEOUT; memcpy(p->sa, sa, ETH_ALEN); - list_add(&p->list, &rmc->bucket[idx].list); + list_add(&p->list, &rmc->bucket[idx]); return 0; } diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 7c9215fb2ac8..84c28c6101cd 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -184,7 +184,7 @@ struct rmc_entry { }; struct mesh_rmc { - struct rmc_entry bucket[RMC_BUCKETS]; + struct list_head bucket[RMC_BUCKETS]; u32 idx_mask; }; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 7753a9ca98a6..a3552929a21d 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1074,12 +1074,8 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) if (beaconint_us > latency) { local->ps_sdata = NULL; } else { - struct ieee80211_bss *bss; int maxslp = 1; - u8 dtimper; - - bss = (void *)found->u.mgd.associated->priv; - dtimper = bss->dtim_period; + u8 dtimper = found->u.mgd.dtim_period; /* If the TIM IE is invalid, pretend the value is 1 */ if (!dtimper) @@ -1410,10 +1406,17 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, ieee80211_led_assoc(local, 1); - if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) - bss_conf->dtim_period = bss->dtim_period; - else + if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { + /* + * If the AP is buggy we may get here with no DTIM period + * known, so assume it's 1 which is the only safe assumption + * in that case, although if the TIM IE is broken powersave + * probably just won't work at all. + */ + bss_conf->dtim_period = sdata->u.mgd.dtim_period ?: 1; + } else { bss_conf->dtim_period = 0; + } bss_conf->assoc = 1; @@ -1562,6 +1565,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, sdata->u.mgd.timers_running = 0; + sdata->vif.bss_conf.dtim_period = 0; + ifmgd->flags = 0; ieee80211_vif_release_channel(sdata); } @@ -2373,11 +2378,18 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, struct ieee80211_channel *channel; bool need_ps = false; - if (sdata->u.mgd.associated && - ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) { - bss = (void *)sdata->u.mgd.associated->priv; + if ((sdata->u.mgd.associated && + ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) || + (sdata->u.mgd.assoc_data && + ether_addr_equal(mgmt->bssid, + sdata->u.mgd.assoc_data->bss->bssid))) { /* not previously set so we may need to recalc */ - need_ps = !bss->dtim_period; + need_ps = sdata->u.mgd.associated && !sdata->u.mgd.dtim_period; + + if (elems->tim && !elems->parse_error) { + struct ieee80211_tim_ie *tim_ie = elems->tim; + sdata->u.mgd.dtim_period = tim_ie->dtim_period; + } } if (elems->ds_params && elems->ds_params_len == 1) @@ -3896,20 +3908,41 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, /* kick off associate process */ ifmgd->assoc_data = assoc_data; + ifmgd->dtim_period = 0; err = ieee80211_prep_connection(sdata, req->bss, true); if (err) goto err_clear; - if (!bss->dtim_period && - sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { - /* - * Wait up to one beacon interval ... - * should this be more if we miss one? - */ - sdata_info(sdata, "waiting for beacon from %pM\n", - ifmgd->bssid); - assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); + if (sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { + const struct cfg80211_bss_ies *beacon_ies; + + rcu_read_lock(); + beacon_ies = rcu_dereference(req->bss->beacon_ies); + if (!beacon_ies) { + /* + * Wait up to one beacon interval ... + * should this be more if we miss one? + */ + sdata_info(sdata, "waiting for beacon from %pM\n", + ifmgd->bssid); + assoc_data->timeout = + TU_TO_EXP_TIME(req->bss->beacon_interval); + } else { + const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, + beacon_ies->data, + beacon_ies->len); + if (tim_ie && tim_ie[1] >= + sizeof(struct ieee80211_tim_ie)) { + const struct ieee80211_tim_ie *tim; + tim = (void *)(tim_ie + 2); + ifmgd->dtim_period = tim->dtim_period; + } + assoc_data->have_beacon = true; + assoc_data->sent_assoc = false; + assoc_data->timeout = jiffies; + } + rcu_read_unlock(); } else { assoc_data->have_beacon = true; assoc_data->sent_assoc = false; diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 8ed83dcc149f..d59fc6818b1c 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -113,18 +113,6 @@ ieee80211_bss_info_update(struct ieee80211_local *local, bss->valid_data |= IEEE80211_BSS_VALID_ERP; } - if (elems->tim && (!elems->parse_error || - !(bss->valid_data & IEEE80211_BSS_VALID_DTIM))) { - struct ieee80211_tim_ie *tim_ie = elems->tim; - bss->dtim_period = tim_ie->dtim_period; - if (!elems->parse_error) - bss->valid_data |= IEEE80211_BSS_VALID_DTIM; - } - - /* If the beacon had no TIM IE, or it was invalid, use 1 */ - if (beacon && !bss->dtim_period) - bss->dtim_period = 1; - /* replace old supported rates if we get new values */ if (!elems->parse_error || !(bss->valid_data & IEEE80211_BSS_VALID_RATES)) { @@ -832,9 +820,9 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, return res; } -int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, - const u8 *ssid, u8 ssid_len, - struct ieee80211_channel *chan) +int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, + const u8 *ssid, u8 ssid_len, + struct ieee80211_channel *chan) { struct ieee80211_local *local = sdata->local; int ret = -EBUSY; @@ -848,22 +836,36 @@ int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, /* fill internal scan request */ if (!chan) { - int i, nchan = 0; + int i, max_n; + int n_ch = 0; for (band = 0; band < IEEE80211_NUM_BANDS; band++) { if (!local->hw.wiphy->bands[band]) continue; - for (i = 0; - i < local->hw.wiphy->bands[band]->n_channels; - i++) { - local->int_scan_req->channels[nchan] = + + max_n = local->hw.wiphy->bands[band]->n_channels; + for (i = 0; i < max_n; i++) { + struct ieee80211_channel *tmp_ch = &local->hw.wiphy->bands[band]->channels[i]; - nchan++; + + if (tmp_ch->flags & (IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_DISABLED)) + continue; + + local->int_scan_req->channels[n_ch] = tmp_ch; + n_ch++; } } - local->int_scan_req->n_channels = nchan; + if (WARN_ON_ONCE(n_ch == 0)) + goto unlock; + + local->int_scan_req->n_channels = n_ch; } else { + if (WARN_ON_ONCE(chan->flags & (IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_DISABLED))) + goto unlock; + local->int_scan_req->channels[0] = chan; local->int_scan_req->n_channels = 1; } diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index f3e502502fee..ca9fde198188 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -91,9 +91,8 @@ static int sta_info_hash_del(struct ieee80211_local *local, return -ENOENT; } -static void free_sta_work(struct work_struct *wk) +static void cleanup_single_sta(struct sta_info *sta) { - struct sta_info *sta = container_of(wk, struct sta_info, free_sta_wk); int ac, i; struct tid_ampdu_tx *tid_tx; struct ieee80211_sub_if_data *sdata = sta->sdata; @@ -153,11 +152,35 @@ static void free_sta_work(struct work_struct *wk) sta_info_free(local, sta); } +void ieee80211_cleanup_sdata_stas(struct ieee80211_sub_if_data *sdata) +{ + struct sta_info *sta; + + spin_lock_bh(&sdata->cleanup_stations_lock); + while (!list_empty(&sdata->cleanup_stations)) { + sta = list_first_entry(&sdata->cleanup_stations, + struct sta_info, list); + list_del(&sta->list); + spin_unlock_bh(&sdata->cleanup_stations_lock); + + cleanup_single_sta(sta); + + spin_lock_bh(&sdata->cleanup_stations_lock); + } + + spin_unlock_bh(&sdata->cleanup_stations_lock); +} + static void free_sta_rcu(struct rcu_head *h) { struct sta_info *sta = container_of(h, struct sta_info, rcu_head); + struct ieee80211_sub_if_data *sdata = sta->sdata; - ieee80211_queue_work(&sta->local->hw, &sta->free_sta_wk); + spin_lock(&sdata->cleanup_stations_lock); + list_add_tail(&sta->list, &sdata->cleanup_stations); + spin_unlock(&sdata->cleanup_stations_lock); + + ieee80211_queue_work(&sdata->local->hw, &sdata->cleanup_stations_wk); } /* protected by RCU */ @@ -310,7 +333,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, spin_lock_init(&sta->lock); INIT_WORK(&sta->drv_unblock_wk, sta_unblock); - INIT_WORK(&sta->free_sta_wk, free_sta_work); INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work); mutex_init(&sta->ampdu_mlme.mtx); @@ -862,7 +884,7 @@ void sta_info_init(struct ieee80211_local *local) void sta_info_stop(struct ieee80211_local *local) { - del_timer(&local->sta_cleanup); + del_timer_sync(&local->sta_cleanup); sta_info_flush(local, NULL); } @@ -891,6 +913,20 @@ int sta_info_flush(struct ieee80211_local *local, } mutex_unlock(&local->sta_mtx); + rcu_barrier(); + + if (sdata) { + ieee80211_cleanup_sdata_stas(sdata); + cancel_work_sync(&sdata->cleanup_stations_wk); + } else { + mutex_lock(&local->iflist_mtx); + list_for_each_entry(sdata, &local->interfaces, list) { + ieee80211_cleanup_sdata_stas(sdata); + cancel_work_sync(&sdata->cleanup_stations_wk); + } + mutex_unlock(&local->iflist_mtx); + } + return ret; } diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 1489bca9ea97..37c1889afd3a 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -299,7 +299,6 @@ struct sta_info { spinlock_t lock; struct work_struct drv_unblock_wk; - struct work_struct free_sta_wk; u16 listen_interval; @@ -563,4 +562,6 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta); void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta); void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta); +void ieee80211_cleanup_sdata_stas(struct ieee80211_sub_if_data *sdata); + #endif /* STA_INFO_H */ diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c index 1191039c2b1b..199b92261e94 100644 --- a/net/mac802154/wpan.c +++ b/net/mac802154/wpan.c @@ -389,7 +389,7 @@ void mac802154_wpan_setup(struct net_device *dev) static int mac802154_process_data(struct net_device *dev, struct sk_buff *skb) { - return netif_rx(skb); + return netif_rx_ni(skb); } static int diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index fefa514b9917..49e96df5fbc4 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -680,6 +680,13 @@ config NETFILTER_XT_TARGET_NFQUEUE To compile it as a module, choose M here. If unsure, say N. +config NETFILTER_XT_TARGET_NOTRACK + tristate '"NOTRACK" target support (DEPRECATED)' + depends on NF_CONNTRACK + depends on IP_NF_RAW || IP6_NF_RAW + depends on NETFILTER_ADVANCED + select NETFILTER_XT_TARGET_CT + config NETFILTER_XT_TARGET_RATEEST tristate '"RATEEST" target support' depends on NETFILTER_ADVANCED diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 08cdc71d8e87..016d95ead930 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -1526,6 +1526,7 @@ err_extend: */ #define UNCONFIRMED_NULLS_VAL ((1<<30)+0) #define DYING_NULLS_VAL ((1<<30)+1) +#define TEMPLATE_NULLS_VAL ((1<<30)+2) static int nf_conntrack_init_net(struct net *net) { @@ -1534,6 +1535,7 @@ static int nf_conntrack_init_net(struct net *net) atomic_set(&net->ct.count, 0); INIT_HLIST_NULLS_HEAD(&net->ct.unconfirmed, UNCONFIRMED_NULLS_VAL); INIT_HLIST_NULLS_HEAD(&net->ct.dying, DYING_NULLS_VAL); + INIT_HLIST_NULLS_HEAD(&net->ct.tmpl, TEMPLATE_NULLS_VAL); net->ct.stat = alloc_percpu(struct ip_conntrack_stat); if (!net->ct.stat) { ret = -ENOMEM; diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 4e078cd84d83..627b0e50b238 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -2624,7 +2624,7 @@ ctnetlink_create_expect(struct net *net, u16 zone, if (!help) { if (!cda[CTA_EXPECT_TIMEOUT]) { err = -EINVAL; - goto out; + goto err_out; } exp->timeout.expires = jiffies + ntohl(nla_get_be32(cda[CTA_EXPECT_TIMEOUT])) * HZ; diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index 9f199f2e31fa..92fd8eca0d31 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -13,6 +13,7 @@ */ #include <linux/module.h> #include <linux/skbuff.h> +#include <linux/if_arp.h> #include <linux/init.h> #include <linux/ip.h> #include <linux/ipv6.h> @@ -384,6 +385,7 @@ __build_packet_message(struct nfulnl_instance *inst, struct nfgenmsg *nfmsg; sk_buff_data_t old_tail = inst->skb->tail; struct sock *sk; + const unsigned char *hwhdrp; nlh = nlmsg_put(inst->skb, 0, 0, NFNL_SUBSYS_ULOG << 8 | NFULNL_MSG_PACKET, @@ -485,9 +487,17 @@ __build_packet_message(struct nfulnl_instance *inst, if (indev && skb_mac_header_was_set(skb)) { if (nla_put_be16(inst->skb, NFULA_HWTYPE, htons(skb->dev->type)) || nla_put_be16(inst->skb, NFULA_HWLEN, - htons(skb->dev->hard_header_len)) || - nla_put(inst->skb, NFULA_HWHEADER, skb->dev->hard_header_len, - skb_mac_header(skb))) + htons(skb->dev->hard_header_len))) + goto nla_put_failure; + + hwhdrp = skb_mac_header(skb); + + if (skb->dev->type == ARPHRD_SIT) + hwhdrp -= ETH_HLEN; + + if (hwhdrp >= skb->head && + nla_put(inst->skb, NFULA_HWHEADER, + skb->dev->hard_header_len, hwhdrp)) goto nla_put_failure; } diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index ae7f5daeee43..2a0843081840 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -149,6 +149,10 @@ static int xt_ct_tg_check_v0(const struct xt_tgchk_param *par) __set_bit(IPS_TEMPLATE_BIT, &ct->status); __set_bit(IPS_CONFIRMED_BIT, &ct->status); + + /* Overload tuple linked list to put us in template list. */ + hlist_nulls_add_head_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode, + &par->net->ct.tmpl); out: info->ct = ct; return 0; @@ -289,6 +293,10 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) __set_bit(IPS_TEMPLATE_BIT, &ct->status); __set_bit(IPS_CONFIRMED_BIT, &ct->status); + + /* Overload tuple linked list to put us in template list. */ + hlist_nulls_add_head_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode, + &par->net->ct.tmpl); out: info->ct = ct; return 0; @@ -377,14 +385,60 @@ static struct xt_target xt_ct_tg_reg[] __read_mostly = { }, }; +static unsigned int +notrack_tg(struct sk_buff *skb, const struct xt_action_param *par) +{ + /* Previously seen (loopback)? Ignore. */ + if (skb->nfct != NULL) + return XT_CONTINUE; + + skb->nfct = &nf_ct_untracked_get()->ct_general; + skb->nfctinfo = IP_CT_NEW; + nf_conntrack_get(skb->nfct); + + return XT_CONTINUE; +} + +static int notrack_chk(const struct xt_tgchk_param *par) +{ + if (!par->net->xt.notrack_deprecated_warning) { + pr_info("netfilter: NOTRACK target is deprecated, " + "use CT instead or upgrade iptables\n"); + par->net->xt.notrack_deprecated_warning = true; + } + return 0; +} + +static struct xt_target notrack_tg_reg __read_mostly = { + .name = "NOTRACK", + .revision = 0, + .family = NFPROTO_UNSPEC, + .checkentry = notrack_chk, + .target = notrack_tg, + .table = "raw", + .me = THIS_MODULE, +}; + static int __init xt_ct_tg_init(void) { - return xt_register_targets(xt_ct_tg_reg, ARRAY_SIZE(xt_ct_tg_reg)); + int ret; + + ret = xt_register_target(¬rack_tg_reg); + if (ret < 0) + return ret; + + ret = xt_register_targets(xt_ct_tg_reg, ARRAY_SIZE(xt_ct_tg_reg)); + if (ret < 0) { + xt_unregister_target(¬rack_tg_reg); + return ret; + } + return 0; } static void __exit xt_ct_tg_exit(void) { xt_unregister_targets(xt_ct_tg_reg, ARRAY_SIZE(xt_ct_tg_reg)); + xt_unregister_target(¬rack_tg_reg); } module_init(xt_ct_tg_init); @@ -394,3 +448,5 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Xtables: connection tracking target"); MODULE_ALIAS("ipt_CT"); MODULE_ALIAS("ip6t_CT"); +MODULE_ALIAS("ipt_NOTRACK"); +MODULE_ALIAS("ip6t_NOTRACK"); diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 26a668a84aa2..a9d7af953ceb 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -157,11 +157,22 @@ dsthash_find(const struct xt_hashlimit_htable *ht, /* allocate dsthash_ent, initialize dst, put in htable and lock it */ static struct dsthash_ent * dsthash_alloc_init(struct xt_hashlimit_htable *ht, - const struct dsthash_dst *dst) + const struct dsthash_dst *dst, bool *race) { struct dsthash_ent *ent; spin_lock(&ht->lock); + + /* Two or more packets may race to create the same entry in the + * hashtable, double check if this packet lost race. + */ + ent = dsthash_find(ht, dst); + if (ent != NULL) { + spin_unlock(&ht->lock); + *race = true; + return ent; + } + /* initialize hash with random val at the time we allocate * the first hashtable entry */ if (unlikely(!ht->rnd_initialized)) { @@ -318,7 +329,10 @@ static void htable_destroy(struct xt_hashlimit_htable *hinfo) parent = hashlimit_net->ipt_hashlimit; else parent = hashlimit_net->ip6t_hashlimit; - remove_proc_entry(hinfo->pde->name, parent); + + if(parent != NULL) + remove_proc_entry(hinfo->pde->name, parent); + htable_selective_cleanup(hinfo, select_all); vfree(hinfo); } @@ -585,6 +599,7 @@ hashlimit_mt(const struct sk_buff *skb, struct xt_action_param *par) unsigned long now = jiffies; struct dsthash_ent *dh; struct dsthash_dst dst; + bool race = false; u32 cost; if (hashlimit_init_dst(hinfo, &dst, skb, par->thoff) < 0) @@ -593,13 +608,18 @@ hashlimit_mt(const struct sk_buff *skb, struct xt_action_param *par) rcu_read_lock_bh(); dh = dsthash_find(hinfo, &dst); if (dh == NULL) { - dh = dsthash_alloc_init(hinfo, &dst); + dh = dsthash_alloc_init(hinfo, &dst, &race); if (dh == NULL) { rcu_read_unlock_bh(); goto hotdrop; + } else if (race) { + /* Already got an entry, update expiration timeout */ + dh->expires = now + msecs_to_jiffies(hinfo->cfg.expire); + rateinfo_recalc(dh, now, hinfo->cfg.mode); + } else { + dh->expires = jiffies + msecs_to_jiffies(hinfo->cfg.expire); + rateinfo_init(dh, hinfo); } - dh->expires = jiffies + msecs_to_jiffies(hinfo->cfg.expire); - rateinfo_init(dh, hinfo); } else { /* update expiration timeout */ dh->expires = now + msecs_to_jiffies(hinfo->cfg.expire); @@ -856,6 +876,27 @@ static int __net_init hashlimit_proc_net_init(struct net *net) static void __net_exit hashlimit_proc_net_exit(struct net *net) { + struct xt_hashlimit_htable *hinfo; + struct hlist_node *pos; + struct proc_dir_entry *pde; + struct hashlimit_net *hashlimit_net = hashlimit_pernet(net); + + /* recent_net_exit() is called before recent_mt_destroy(). Make sure + * that the parent xt_recent proc entry is is empty before trying to + * remove it. + */ + mutex_lock(&hashlimit_mutex); + pde = hashlimit_net->ipt_hashlimit; + if (pde == NULL) + pde = hashlimit_net->ip6t_hashlimit; + + hlist_for_each_entry(hinfo, pos, &hashlimit_net->htables, node) + remove_proc_entry(hinfo->pde->name, pde); + + hashlimit_net->ipt_hashlimit = NULL; + hashlimit_net->ip6t_hashlimit = NULL; + mutex_unlock(&hashlimit_mutex); + proc_net_remove(net, "ipt_hashlimit"); #if IS_ENABLED(CONFIG_IP6_NF_IPTABLES) proc_net_remove(net, "ip6t_hashlimit"); @@ -872,9 +913,6 @@ static int __net_init hashlimit_net_init(struct net *net) static void __net_exit hashlimit_net_exit(struct net *net) { - struct hashlimit_net *hashlimit_net = hashlimit_pernet(net); - - BUG_ON(!hlist_empty(&hashlimit_net->htables)); hashlimit_proc_net_exit(net); } diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index 4635c9b00459..978efc9b555a 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -29,6 +29,7 @@ #include <linux/skbuff.h> #include <linux/inet.h> #include <linux/slab.h> +#include <linux/vmalloc.h> #include <net/net_namespace.h> #include <net/netns/generic.h> @@ -310,6 +311,14 @@ out: return ret; } +static void recent_table_free(void *addr) +{ + if (is_vmalloc_addr(addr)) + vfree(addr); + else + kfree(addr); +} + static int recent_mt_check(const struct xt_mtchk_param *par, const struct xt_recent_mtinfo_v1 *info) { @@ -322,6 +331,7 @@ static int recent_mt_check(const struct xt_mtchk_param *par, #endif unsigned int i; int ret = -EINVAL; + size_t sz; if (unlikely(!hash_rnd_inited)) { get_random_bytes(&hash_rnd, sizeof(hash_rnd)); @@ -360,8 +370,11 @@ static int recent_mt_check(const struct xt_mtchk_param *par, goto out; } - t = kzalloc(sizeof(*t) + sizeof(t->iphash[0]) * ip_list_hash_size, - GFP_KERNEL); + sz = sizeof(*t) + sizeof(t->iphash[0]) * ip_list_hash_size; + if (sz <= PAGE_SIZE) + t = kzalloc(sz, GFP_KERNEL); + else + t = vzalloc(sz); if (t == NULL) { ret = -ENOMEM; goto out; @@ -377,14 +390,14 @@ static int recent_mt_check(const struct xt_mtchk_param *par, uid = make_kuid(&init_user_ns, ip_list_uid); gid = make_kgid(&init_user_ns, ip_list_gid); if (!uid_valid(uid) || !gid_valid(gid)) { - kfree(t); + recent_table_free(t); ret = -EINVAL; goto out; } pde = proc_create_data(t->name, ip_list_perms, recent_net->xt_recent, &recent_mt_fops, t); if (pde == NULL) { - kfree(t); + recent_table_free(t); ret = -ENOMEM; goto out; } @@ -431,10 +444,11 @@ static void recent_mt_destroy(const struct xt_mtdtor_param *par) list_del(&t->list); spin_unlock_bh(&recent_lock); #ifdef CONFIG_PROC_FS - remove_proc_entry(t->name, recent_net->xt_recent); + if (recent_net->xt_recent != NULL) + remove_proc_entry(t->name, recent_net->xt_recent); #endif recent_table_flush(t); - kfree(t); + recent_table_free(t); } mutex_unlock(&recent_mutex); } @@ -615,6 +629,20 @@ static int __net_init recent_proc_net_init(struct net *net) static void __net_exit recent_proc_net_exit(struct net *net) { + struct recent_net *recent_net = recent_pernet(net); + struct recent_table *t; + + /* recent_net_exit() is called before recent_mt_destroy(). Make sure + * that the parent xt_recent proc entry is is empty before trying to + * remove it. + */ + spin_lock_bh(&recent_lock); + list_for_each_entry(t, &recent_net->tables, list) + remove_proc_entry(t->name, recent_net->xt_recent); + + recent_net->xt_recent = NULL; + spin_unlock_bh(&recent_lock); + proc_net_remove(net, "xt_recent"); } #else @@ -638,9 +666,6 @@ static int __net_init recent_net_init(struct net *net) static void __net_exit recent_net_exit(struct net *net) { - struct recent_net *recent_net = recent_pernet(net); - - BUG_ON(!list_empty(&recent_net->tables)); recent_proc_net_exit(net); } diff --git a/net/sctp/Kconfig b/net/sctp/Kconfig index c26210618e14..7521d944c0fb 100644 --- a/net/sctp/Kconfig +++ b/net/sctp/Kconfig @@ -68,7 +68,7 @@ config SCTP_DBG_OBJCNT If unsure, say N choice prompt "Default SCTP cookie HMAC encoding" - default SCTP_COOKIE_HMAC_MD5 + default SCTP_DEFAULT_COOKIE_HMAC_MD5 help This option sets the default sctp cookie hmac algorithm when in doubt select 'md5' diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 822f020fa7f4..507b5e84fbdb 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -555,7 +555,7 @@ EXPORT_SYMBOL_GPL(rpc_clone_client); * rpc_clone_client_set_auth - Clone an RPC client structure and set its auth * * @clnt: RPC client whose parameters are copied - * @auth: security flavor for new client + * @flavor: security flavor for new client * * Returns a fresh RPC client or an ERR_PTR. */ @@ -610,11 +610,6 @@ EXPORT_SYMBOL_GPL(rpc_killall_tasks); */ void rpc_shutdown_client(struct rpc_clnt *clnt) { - /* - * To avoid deadlock, never call rpc_shutdown_client from a - * workqueue context! - */ - WARN_ON_ONCE(current->flags & PF_WQ_WORKER); might_sleep(); dprintk_rcu("RPC: shutting down %s client for %s\n", diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index d17a704aaf5f..bfa31714581f 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -934,16 +934,35 @@ struct rpc_task *rpc_new_task(const struct rpc_task_setup *setup_data) return task; } +/* + * rpc_free_task - release rpc task and perform cleanups + * + * Note that we free up the rpc_task _after_ rpc_release_calldata() + * in order to work around a workqueue dependency issue. + * + * Tejun Heo states: + * "Workqueue currently considers two work items to be the same if they're + * on the same address and won't execute them concurrently - ie. it + * makes a work item which is queued again while being executed wait + * for the previous execution to complete. + * + * If a work function frees the work item, and then waits for an event + * which should be performed by another work item and *that* work item + * recycles the freed work item, it can create a false dependency loop. + * There really is no reliable way to detect this short of verifying + * every memory free." + * + */ static void rpc_free_task(struct rpc_task *task) { - const struct rpc_call_ops *tk_ops = task->tk_ops; - void *calldata = task->tk_calldata; + unsigned short tk_flags = task->tk_flags; + + rpc_release_calldata(task->tk_ops, task->tk_calldata); - if (task->tk_flags & RPC_TASK_DYNAMIC) { + if (tk_flags & RPC_TASK_DYNAMIC) { dprintk("RPC: %5u freeing task\n", task->tk_pid); mempool_free(task, rpc_task_mempool); } - rpc_release_calldata(tk_ops, calldata); } static void rpc_async_release(struct work_struct *work) @@ -953,8 +972,7 @@ static void rpc_async_release(struct work_struct *work) static void rpc_release_resources_task(struct rpc_task *task) { - if (task->tk_rqstp) - xprt_release(task); + xprt_release(task); if (task->tk_msg.rpc_cred) { put_rpccred(task->tk_msg.rpc_cred); task->tk_msg.rpc_cred = NULL; diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index bd462a532acf..33811db8788a 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -1136,10 +1136,18 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt) void xprt_release(struct rpc_task *task) { struct rpc_xprt *xprt; - struct rpc_rqst *req; + struct rpc_rqst *req = task->tk_rqstp; - if (!(req = task->tk_rqstp)) + if (req == NULL) { + if (task->tk_client) { + rcu_read_lock(); + xprt = rcu_dereference(task->tk_client->cl_xprt); + if (xprt->snd_task == task) + xprt_release_write(xprt, task); + rcu_read_unlock(); + } return; + } xprt = req->rq_xprt; if (task->tk_ops->rpc_count_stats != NULL) diff --git a/net/wireless/core.c b/net/wireless/core.c index 14d990400354..b677eab55b68 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -866,8 +866,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb, /* allow mac80211 to determine the timeout */ wdev->ps_timeout = -1; - if (!dev->ethtool_ops) - dev->ethtool_ops = &cfg80211_ethtool_ops; + netdev_set_default_ethtool_ops(dev, &cfg80211_ethtool_ops); if ((wdev->iftype == NL80211_IFTYPE_STATION || wdev->iftype == NL80211_IFTYPE_P2P_CLIENT || |