summaryrefslogtreecommitdiff
path: root/net
diff options
context:
space:
mode:
Diffstat (limited to 'net')
-rw-r--r--net/batman-adv/bat_v_elp.c6
-rw-r--r--net/batman-adv/fragmentation.c2
-rw-r--r--net/bridge/br_private.h7
-rw-r--r--net/bridge/br_vlan.c3
-rw-r--r--net/can/raw.c15
-rw-r--r--net/core/dev.c4
-rw-r--r--net/ipv4/ip_tunnel_core.c2
-rw-r--r--net/ipv6/route.c14
-rw-r--r--net/l2tp/l2tp_core.c9
-rw-r--r--net/rxrpc/af_rxrpc.c27
-rw-r--r--net/sched/act_pedit.c3
-rw-r--r--net/sched/sch_fq.c31
-rw-r--r--net/socket.c2
-rw-r--r--net/tipc/discover.c19
-rw-r--r--net/tipc/net.c45
-rw-r--r--net/tipc/net.h2
-rw-r--r--net/tipc/socket.c15
17 files changed, 143 insertions, 63 deletions
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index 9f481cfdf77d..e8090f099eb8 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -352,19 +352,21 @@ out:
*/
int batadv_v_elp_iface_enable(struct batadv_hard_iface *hard_iface)
{
+ static const size_t tvlv_padding = sizeof(__be32);
struct batadv_elp_packet *elp_packet;
unsigned char *elp_buff;
u32 random_seqno;
size_t size;
int res = -ENOMEM;
- size = ETH_HLEN + NET_IP_ALIGN + BATADV_ELP_HLEN;
+ size = ETH_HLEN + NET_IP_ALIGN + BATADV_ELP_HLEN + tvlv_padding;
hard_iface->bat_v.elp_skb = dev_alloc_skb(size);
if (!hard_iface->bat_v.elp_skb)
goto out;
skb_reserve(hard_iface->bat_v.elp_skb, ETH_HLEN + NET_IP_ALIGN);
- elp_buff = skb_put_zero(hard_iface->bat_v.elp_skb, BATADV_ELP_HLEN);
+ elp_buff = skb_put_zero(hard_iface->bat_v.elp_skb,
+ BATADV_ELP_HLEN + tvlv_padding);
elp_packet = (struct batadv_elp_packet *)elp_buff;
elp_packet->packet_type = BATADV_ELP;
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index 0fddc17106bd..5b71a289d04f 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -275,7 +275,7 @@ batadv_frag_merge_packets(struct hlist_head *chain)
kfree(entry);
packet = (struct batadv_frag_packet *)skb_out->data;
- size = ntohs(packet->total_size);
+ size = ntohs(packet->total_size) + hdr_size;
/* Make room for the rest of the fragments. */
if (pskb_expand_head(skb_out, 0, size - skb_out->len, GFP_ATOMIC) < 0) {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 2920e06a5403..04c19a37e500 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -102,12 +102,18 @@ struct br_tunnel_info {
struct metadata_dst *tunnel_dst;
};
+/* private vlan flags */
+enum {
+ BR_VLFLAG_PER_PORT_STATS = BIT(0),
+};
+
/**
* struct net_bridge_vlan - per-vlan entry
*
* @vnode: rhashtable member
* @vid: VLAN id
* @flags: bridge vlan flags
+ * @priv_flags: private (in-kernel) bridge vlan flags
* @stats: per-cpu VLAN statistics
* @br: if MASTER flag set, this points to a bridge struct
* @port: if MASTER flag unset, this points to a port struct
@@ -127,6 +133,7 @@ struct net_bridge_vlan {
struct rhash_head tnode;
u16 vid;
u16 flags;
+ u16 priv_flags;
struct br_vlan_stats __percpu *stats;
union {
struct net_bridge *br;
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 8c9297a01947..e84be08b8285 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -197,7 +197,7 @@ static void nbp_vlan_rcu_free(struct rcu_head *rcu)
v = container_of(rcu, struct net_bridge_vlan, rcu);
WARN_ON(br_vlan_is_master(v));
/* if we had per-port stats configured then free them here */
- if (v->brvlan->stats != v->stats)
+ if (v->priv_flags & BR_VLFLAG_PER_PORT_STATS)
free_percpu(v->stats);
v->stats = NULL;
kfree(v);
@@ -264,6 +264,7 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags)
err = -ENOMEM;
goto out_filt;
}
+ v->priv_flags |= BR_VLFLAG_PER_PORT_STATS;
} else {
v->stats = masterv->stats;
}
diff --git a/net/can/raw.c b/net/can/raw.c
index 1051eee82581..3aab7664933f 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -745,18 +745,19 @@ static int raw_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
} else
ifindex = ro->ifindex;
- if (ro->fd_frames) {
+ dev = dev_get_by_index(sock_net(sk), ifindex);
+ if (!dev)
+ return -ENXIO;
+
+ err = -EINVAL;
+ if (ro->fd_frames && dev->mtu == CANFD_MTU) {
if (unlikely(size != CANFD_MTU && size != CAN_MTU))
- return -EINVAL;
+ goto put_dev;
} else {
if (unlikely(size != CAN_MTU))
- return -EINVAL;
+ goto put_dev;
}
- dev = dev_get_by_index(sock_net(sk), ifindex);
- if (!dev)
- return -ENXIO;
-
skb = sock_alloc_send_skb(sk, size + sizeof(struct can_skb_priv),
msg->msg_flags & MSG_DONTWAIT, &err);
if (!skb)
diff --git a/net/core/dev.c b/net/core/dev.c
index 0ffcbdd55fa9..066aa902d85c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5655,6 +5655,10 @@ static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb)
skb->vlan_tci = 0;
skb->dev = napi->dev;
skb->skb_iif = 0;
+
+ /* eth_type_trans() assumes pkt_type is PACKET_HOST */
+ skb->pkt_type = PACKET_HOST;
+
skb->encapsulation = 0;
skb_shinfo(skb)->gso_type = 0;
skb->truesize = SKB_TRUESIZE(skb_end_offset(skb));
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index dde671e97829..c248e0dccbe1 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -80,7 +80,7 @@ void iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
iph->version = 4;
iph->ihl = sizeof(struct iphdr) >> 2;
- iph->frag_off = df;
+ iph->frag_off = ip_mtu_locked(&rt->dst) ? 0 : df;
iph->protocol = proto;
iph->tos = tos;
iph->daddr = dst;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 2a7423c39456..059f0531f7c1 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2232,8 +2232,7 @@ static void ip6_link_failure(struct sk_buff *skb)
if (rt) {
rcu_read_lock();
if (rt->rt6i_flags & RTF_CACHE) {
- if (dst_hold_safe(&rt->dst))
- rt6_remove_exception_rt(rt);
+ rt6_remove_exception_rt(rt);
} else {
struct fib6_info *from;
struct fib6_node *fn;
@@ -2360,10 +2359,13 @@ EXPORT_SYMBOL_GPL(ip6_update_pmtu);
void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu)
{
+ int oif = sk->sk_bound_dev_if;
struct dst_entry *dst;
- ip6_update_pmtu(skb, sock_net(sk), mtu,
- sk->sk_bound_dev_if, sk->sk_mark, sk->sk_uid);
+ if (!oif && skb->dev)
+ oif = l3mdev_master_ifindex(skb->dev);
+
+ ip6_update_pmtu(skb, sock_net(sk), mtu, oif, sk->sk_mark, sk->sk_uid);
dst = __sk_dst_get(sk);
if (!dst || !dst->obsolete ||
@@ -3214,8 +3216,8 @@ static int ip6_del_cached_rt(struct rt6_info *rt, struct fib6_config *cfg)
if (cfg->fc_flags & RTF_GATEWAY &&
!ipv6_addr_equal(&cfg->fc_gateway, &rt->rt6i_gateway))
goto out;
- if (dst_hold_safe(&rt->dst))
- rc = rt6_remove_exception_rt(rt);
+
+ rc = rt6_remove_exception_rt(rt);
out:
return rc;
}
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 82cdf9020b53..26f1d435696a 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1490,12 +1490,7 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net,
goto err_sock;
}
- sk = sock->sk;
-
- sock_hold(sk);
- tunnel->sock = sk;
tunnel->l2tp_net = net;
-
pn = l2tp_pernet(net);
spin_lock_bh(&pn->l2tp_tunnel_list_lock);
@@ -1510,6 +1505,10 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net,
list_add_rcu(&tunnel->list, &pn->l2tp_tunnel_list);
spin_unlock_bh(&pn->l2tp_tunnel_list_lock);
+ sk = sock->sk;
+ sock_hold(sk);
+ tunnel->sock = sk;
+
if (tunnel->encap == L2TP_ENCAPTYPE_UDP) {
struct udp_tunnel_sock_cfg udp_cfg = {
.sk_user_data = tunnel,
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index 64362d078da8..a2522f9d71e2 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -375,17 +375,36 @@ EXPORT_SYMBOL(rxrpc_kernel_end_call);
* getting ACKs from the server. Returns a number representing the life state
* which can be compared to that returned by a previous call.
*
- * If this is a client call, ping ACKs will be sent to the server to find out
- * whether it's still responsive and whether the call is still alive on the
- * server.
+ * If the life state stalls, rxrpc_kernel_probe_life() should be called and
+ * then 2RTT waited.
*/
-u32 rxrpc_kernel_check_life(struct socket *sock, struct rxrpc_call *call)
+u32 rxrpc_kernel_check_life(const struct socket *sock,
+ const struct rxrpc_call *call)
{
return call->acks_latest;
}
EXPORT_SYMBOL(rxrpc_kernel_check_life);
/**
+ * rxrpc_kernel_probe_life - Poke the peer to see if it's still alive
+ * @sock: The socket the call is on
+ * @call: The call to check
+ *
+ * In conjunction with rxrpc_kernel_check_life(), allow a kernel service to
+ * find out whether a call is still alive by pinging it. This should cause the
+ * life state to be bumped in about 2*RTT.
+ *
+ * The must be called in TASK_RUNNING state on pain of might_sleep() objecting.
+ */
+void rxrpc_kernel_probe_life(struct socket *sock, struct rxrpc_call *call)
+{
+ rxrpc_propose_ACK(call, RXRPC_ACK_PING, 0, 0, true, false,
+ rxrpc_propose_ack_ping_for_check_life);
+ rxrpc_send_ack_packet(call, true, NULL);
+}
+EXPORT_SYMBOL(rxrpc_kernel_probe_life);
+
+/**
* rxrpc_kernel_get_epoch - Retrieve the epoch value from a call.
* @sock: The socket the call is on
* @call: The call to query
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index da3dd0f68cc2..2b372a06b432 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -201,7 +201,8 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
goto out_release;
}
} else {
- return err;
+ ret = err;
+ goto out_free;
}
p = to_pedit(*a);
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index 4b1af706896c..25a7cf6d380f 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -469,22 +469,29 @@ begin:
goto begin;
}
prefetch(&skb->end);
- f->credit -= qdisc_pkt_len(skb);
+ plen = qdisc_pkt_len(skb);
+ f->credit -= plen;
- if (ktime_to_ns(skb->tstamp) || !q->rate_enable)
+ if (!q->rate_enable)
goto out;
rate = q->flow_max_rate;
- if (skb->sk)
- rate = min(skb->sk->sk_pacing_rate, rate);
-
- if (rate <= q->low_rate_threshold) {
- f->credit = 0;
- plen = qdisc_pkt_len(skb);
- } else {
- plen = max(qdisc_pkt_len(skb), q->quantum);
- if (f->credit > 0)
- goto out;
+
+ /* If EDT time was provided for this skb, we need to
+ * update f->time_next_packet only if this qdisc enforces
+ * a flow max rate.
+ */
+ if (!skb->tstamp) {
+ if (skb->sk)
+ rate = min(skb->sk->sk_pacing_rate, rate);
+
+ if (rate <= q->low_rate_threshold) {
+ f->credit = 0;
+ } else {
+ plen = max(plen, q->quantum);
+ if (f->credit > 0)
+ goto out;
+ }
}
if (rate != ~0UL) {
u64 len = (u64)plen * NSEC_PER_SEC;
diff --git a/net/socket.c b/net/socket.c
index 593826e11a53..334fcc617ef2 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -853,7 +853,7 @@ static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
struct socket *sock = file->private_data;
if (unlikely(!sock->ops->splice_read))
- return -EINVAL;
+ return generic_file_splice_read(file, ppos, pipe, len, flags);
return sock->ops->splice_read(sock, ppos, pipe, len, flags);
}
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 2830709957bd..c138d68e8a69 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -166,7 +166,8 @@ static bool tipc_disc_addr_trial_msg(struct tipc_discoverer *d,
/* Apply trial address if we just left trial period */
if (!trial && !self) {
- tipc_net_finalize(net, tn->trial_addr);
+ tipc_sched_net_finalize(net, tn->trial_addr);
+ msg_set_prevnode(buf_msg(d->skb), tn->trial_addr);
msg_set_type(buf_msg(d->skb), DSC_REQ_MSG);
}
@@ -300,14 +301,12 @@ static void tipc_disc_timeout(struct timer_list *t)
goto exit;
}
- /* Trial period over ? */
- if (!time_before(jiffies, tn->addr_trial_end)) {
- /* Did we just leave it ? */
- if (!tipc_own_addr(net))
- tipc_net_finalize(net, tn->trial_addr);
-
- msg_set_type(buf_msg(d->skb), DSC_REQ_MSG);
- msg_set_prevnode(buf_msg(d->skb), tipc_own_addr(net));
+ /* Did we just leave trial period ? */
+ if (!time_before(jiffies, tn->addr_trial_end) && !tipc_own_addr(net)) {
+ mod_timer(&d->timer, jiffies + TIPC_DISC_INIT);
+ spin_unlock_bh(&d->lock);
+ tipc_sched_net_finalize(net, tn->trial_addr);
+ return;
}
/* Adjust timeout interval according to discovery phase */
@@ -319,6 +318,8 @@ static void tipc_disc_timeout(struct timer_list *t)
d->timer_intv = TIPC_DISC_SLOW;
else if (!d->num_nodes && d->timer_intv > TIPC_DISC_FAST)
d->timer_intv = TIPC_DISC_FAST;
+ msg_set_type(buf_msg(d->skb), DSC_REQ_MSG);
+ msg_set_prevnode(buf_msg(d->skb), tn->trial_addr);
}
mod_timer(&d->timer, jiffies + d->timer_intv);
diff --git a/net/tipc/net.c b/net/tipc/net.c
index 62199cf5a56c..f076edb74338 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -104,6 +104,14 @@
* - A local spin_lock protecting the queue of subscriber events.
*/
+struct tipc_net_work {
+ struct work_struct work;
+ struct net *net;
+ u32 addr;
+};
+
+static void tipc_net_finalize(struct net *net, u32 addr);
+
int tipc_net_init(struct net *net, u8 *node_id, u32 addr)
{
if (tipc_own_id(net)) {
@@ -119,17 +127,38 @@ int tipc_net_init(struct net *net, u8 *node_id, u32 addr)
return 0;
}
-void tipc_net_finalize(struct net *net, u32 addr)
+static void tipc_net_finalize(struct net *net, u32 addr)
{
struct tipc_net *tn = tipc_net(net);
- if (!cmpxchg(&tn->node_addr, 0, addr)) {
- tipc_set_node_addr(net, addr);
- tipc_named_reinit(net);
- tipc_sk_reinit(net);
- tipc_nametbl_publish(net, TIPC_CFG_SRV, addr, addr,
- TIPC_CLUSTER_SCOPE, 0, addr);
- }
+ if (cmpxchg(&tn->node_addr, 0, addr))
+ return;
+ tipc_set_node_addr(net, addr);
+ tipc_named_reinit(net);
+ tipc_sk_reinit(net);
+ tipc_nametbl_publish(net, TIPC_CFG_SRV, addr, addr,
+ TIPC_CLUSTER_SCOPE, 0, addr);
+}
+
+static void tipc_net_finalize_work(struct work_struct *work)
+{
+ struct tipc_net_work *fwork;
+
+ fwork = container_of(work, struct tipc_net_work, work);
+ tipc_net_finalize(fwork->net, fwork->addr);
+ kfree(fwork);
+}
+
+void tipc_sched_net_finalize(struct net *net, u32 addr)
+{
+ struct tipc_net_work *fwork = kzalloc(sizeof(*fwork), GFP_ATOMIC);
+
+ if (!fwork)
+ return;
+ INIT_WORK(&fwork->work, tipc_net_finalize_work);
+ fwork->net = net;
+ fwork->addr = addr;
+ schedule_work(&fwork->work);
}
void tipc_net_stop(struct net *net)
diff --git a/net/tipc/net.h b/net/tipc/net.h
index 09ad02b50bb1..b7f2e364eb99 100644
--- a/net/tipc/net.h
+++ b/net/tipc/net.h
@@ -42,7 +42,7 @@
extern const struct nla_policy tipc_nl_net_policy[];
int tipc_net_init(struct net *net, u8 *node_id, u32 addr);
-void tipc_net_finalize(struct net *net, u32 addr);
+void tipc_sched_net_finalize(struct net *net, u32 addr);
void tipc_net_stop(struct net *net);
int tipc_nl_net_dump(struct sk_buff *skb, struct netlink_callback *cb);
int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info);
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 636e6131769d..b57b1be7252b 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1555,16 +1555,17 @@ static void tipc_sk_set_orig_addr(struct msghdr *m, struct sk_buff *skb)
/**
* tipc_sk_anc_data_recv - optionally capture ancillary data for received message
* @m: descriptor for message info
- * @msg: received message header
+ * @skb: received message buffer
* @tsk: TIPC port associated with message
*
* Note: Ancillary data is not captured if not requested by receiver.
*
* Returns 0 if successful, otherwise errno
*/
-static int tipc_sk_anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
+static int tipc_sk_anc_data_recv(struct msghdr *m, struct sk_buff *skb,
struct tipc_sock *tsk)
{
+ struct tipc_msg *msg;
u32 anc_data[3];
u32 err;
u32 dest_type;
@@ -1573,6 +1574,7 @@ static int tipc_sk_anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
if (likely(m->msg_controllen == 0))
return 0;
+ msg = buf_msg(skb);
/* Optionally capture errored message object(s) */
err = msg ? msg_errcode(msg) : 0;
@@ -1583,6 +1585,9 @@ static int tipc_sk_anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
if (res)
return res;
if (anc_data[1]) {
+ if (skb_linearize(skb))
+ return -ENOMEM;
+ msg = buf_msg(skb);
res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1],
msg_data(msg));
if (res)
@@ -1744,9 +1749,10 @@ static int tipc_recvmsg(struct socket *sock, struct msghdr *m,
/* Collect msg meta data, including error code and rejected data */
tipc_sk_set_orig_addr(m, skb);
- rc = tipc_sk_anc_data_recv(m, hdr, tsk);
+ rc = tipc_sk_anc_data_recv(m, skb, tsk);
if (unlikely(rc))
goto exit;
+ hdr = buf_msg(skb);
/* Capture data if non-error msg, otherwise just set return value */
if (likely(!err)) {
@@ -1856,9 +1862,10 @@ static int tipc_recvstream(struct socket *sock, struct msghdr *m,
/* Collect msg meta data, incl. error code and rejected data */
if (!copied) {
tipc_sk_set_orig_addr(m, skb);
- rc = tipc_sk_anc_data_recv(m, hdr, tsk);
+ rc = tipc_sk_anc_data_recv(m, skb, tsk);
if (rc)
break;
+ hdr = buf_msg(skb);
}
/* Copy data if msg ok, otherwise return error/partial data */