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-rw-r--r--net/core/dev.c9
-rw-r--r--net/core/flow_dissector.c42
-rw-r--r--net/core/flow_offload.c45
-rw-r--r--net/core/lwt_bpf.c4
-rw-r--r--net/core/net-sysfs.c7
-rw-r--r--net/core/rtnetlink.c4
-rw-r--r--net/core/skbuff.c10
-rw-r--r--net/core/xdp.c8
8 files changed, 77 insertions, 52 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 46580b290450..2c277b8aba38 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -8188,7 +8188,8 @@ int __dev_set_mtu(struct net_device *dev, int new_mtu)
if (ops->ndo_change_mtu)
return ops->ndo_change_mtu(dev, new_mtu);
- dev->mtu = new_mtu;
+ /* Pairs with all the lockless reads of dev->mtu in the stack */
+ WRITE_ONCE(dev->mtu, new_mtu);
return 0;
}
EXPORT_SYMBOL(__dev_set_mtu);
@@ -9246,7 +9247,7 @@ int register_netdevice(struct net_device *dev)
if (ret) {
if (ret > 0)
ret = -EIO;
- goto out;
+ goto err_free_name;
}
}
@@ -9361,12 +9362,12 @@ out:
return ret;
err_uninit:
- if (dev->name_node)
- netdev_name_node_free(dev->name_node);
if (dev->netdev_ops->ndo_uninit)
dev->netdev_ops->ndo_uninit(dev);
if (dev->priv_destructor)
dev->priv_destructor(dev);
+err_free_name:
+ netdev_name_node_free(dev->name_node);
goto out;
}
EXPORT_SYMBOL(register_netdevice);
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index ca871657a4c4..d524a693e00f 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -760,6 +760,31 @@ __skb_flow_dissect_tcp(const struct sk_buff *skb,
}
static void
+__skb_flow_dissect_ports(const struct sk_buff *skb,
+ struct flow_dissector *flow_dissector,
+ void *target_container, void *data, int nhoff,
+ u8 ip_proto, int hlen)
+{
+ enum flow_dissector_key_id dissector_ports = FLOW_DISSECTOR_KEY_MAX;
+ struct flow_dissector_key_ports *key_ports;
+
+ if (dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_PORTS))
+ dissector_ports = FLOW_DISSECTOR_KEY_PORTS;
+ else if (dissector_uses_key(flow_dissector,
+ FLOW_DISSECTOR_KEY_PORTS_RANGE))
+ dissector_ports = FLOW_DISSECTOR_KEY_PORTS_RANGE;
+
+ if (dissector_ports == FLOW_DISSECTOR_KEY_MAX)
+ return;
+
+ key_ports = skb_flow_dissector_target(flow_dissector,
+ dissector_ports,
+ target_container);
+ key_ports->ports = __skb_flow_get_ports(skb, nhoff, ip_proto,
+ data, hlen);
+}
+
+static void
__skb_flow_dissect_ipv4(const struct sk_buff *skb,
struct flow_dissector *flow_dissector,
void *target_container, void *data, const struct iphdr *iph)
@@ -928,7 +953,6 @@ bool __skb_flow_dissect(const struct net *net,
struct flow_dissector_key_control *key_control;
struct flow_dissector_key_basic *key_basic;
struct flow_dissector_key_addrs *key_addrs;
- struct flow_dissector_key_ports *key_ports;
struct flow_dissector_key_tags *key_tags;
struct flow_dissector_key_vlan *key_vlan;
struct bpf_prog *attached = NULL;
@@ -945,9 +969,10 @@ bool __skb_flow_dissect(const struct net *net,
nhoff = skb_network_offset(skb);
hlen = skb_headlen(skb);
#if IS_ENABLED(CONFIG_NET_DSA)
- if (unlikely(skb->dev && netdev_uses_dsa(skb->dev))) {
+ if (unlikely(skb->dev && netdev_uses_dsa(skb->dev) &&
+ proto == htons(ETH_P_XDSA))) {
const struct dsa_device_ops *ops;
- int offset;
+ int offset = 0;
ops = skb->dev->dsa_ptr->tag_ops;
if (ops->flow_dissect &&
@@ -1383,14 +1408,9 @@ ip_proto_again:
break;
}
- if (dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_PORTS) &&
- !(key_control->flags & FLOW_DIS_IS_FRAGMENT)) {
- key_ports = skb_flow_dissector_target(flow_dissector,
- FLOW_DISSECTOR_KEY_PORTS,
- target_container);
- key_ports->ports = __skb_flow_get_ports(skb, nhoff, ip_proto,
- data, hlen);
- }
+ if (!(key_control->flags & FLOW_DIS_IS_FRAGMENT))
+ __skb_flow_dissect_ports(skb, flow_dissector, target_container,
+ data, nhoff, ip_proto, hlen);
/* Process result of IP proto processing */
switch (fdret) {
diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c
index cf52d9c422fa..45b6a59ac124 100644
--- a/net/core/flow_offload.c
+++ b/net/core/flow_offload.c
@@ -283,7 +283,7 @@ int flow_block_cb_setup_simple(struct flow_block_offload *f,
}
EXPORT_SYMBOL(flow_block_cb_setup_simple);
-static LIST_HEAD(block_ing_cb_list);
+static LIST_HEAD(block_cb_list);
static struct rhashtable indr_setup_block_ht;
@@ -391,20 +391,19 @@ static void flow_indr_block_cb_del(struct flow_indr_block_cb *indr_block_cb)
kfree(indr_block_cb);
}
-static DEFINE_MUTEX(flow_indr_block_ing_cb_lock);
+static DEFINE_MUTEX(flow_indr_block_cb_lock);
-static void flow_block_ing_cmd(struct net_device *dev,
- flow_indr_block_bind_cb_t *cb,
- void *cb_priv,
- enum flow_block_command command)
+static void flow_block_cmd(struct net_device *dev,
+ flow_indr_block_bind_cb_t *cb, void *cb_priv,
+ enum flow_block_command command)
{
- struct flow_indr_block_ing_entry *entry;
+ struct flow_indr_block_entry *entry;
- mutex_lock(&flow_indr_block_ing_cb_lock);
- list_for_each_entry(entry, &block_ing_cb_list, list) {
+ mutex_lock(&flow_indr_block_cb_lock);
+ list_for_each_entry(entry, &block_cb_list, list) {
entry->cb(dev, cb, cb_priv, command);
}
- mutex_unlock(&flow_indr_block_ing_cb_lock);
+ mutex_unlock(&flow_indr_block_cb_lock);
}
int __flow_indr_block_cb_register(struct net_device *dev, void *cb_priv,
@@ -424,8 +423,8 @@ int __flow_indr_block_cb_register(struct net_device *dev, void *cb_priv,
if (err)
goto err_dev_put;
- flow_block_ing_cmd(dev, indr_block_cb->cb, indr_block_cb->cb_priv,
- FLOW_BLOCK_BIND);
+ flow_block_cmd(dev, indr_block_cb->cb, indr_block_cb->cb_priv,
+ FLOW_BLOCK_BIND);
return 0;
@@ -464,8 +463,8 @@ void __flow_indr_block_cb_unregister(struct net_device *dev,
if (!indr_block_cb)
return;
- flow_block_ing_cmd(dev, indr_block_cb->cb, indr_block_cb->cb_priv,
- FLOW_BLOCK_UNBIND);
+ flow_block_cmd(dev, indr_block_cb->cb, indr_block_cb->cb_priv,
+ FLOW_BLOCK_UNBIND);
flow_indr_block_cb_del(indr_block_cb);
flow_indr_block_dev_put(indr_dev);
@@ -499,21 +498,21 @@ void flow_indr_block_call(struct net_device *dev,
}
EXPORT_SYMBOL_GPL(flow_indr_block_call);
-void flow_indr_add_block_ing_cb(struct flow_indr_block_ing_entry *entry)
+void flow_indr_add_block_cb(struct flow_indr_block_entry *entry)
{
- mutex_lock(&flow_indr_block_ing_cb_lock);
- list_add_tail(&entry->list, &block_ing_cb_list);
- mutex_unlock(&flow_indr_block_ing_cb_lock);
+ mutex_lock(&flow_indr_block_cb_lock);
+ list_add_tail(&entry->list, &block_cb_list);
+ mutex_unlock(&flow_indr_block_cb_lock);
}
-EXPORT_SYMBOL_GPL(flow_indr_add_block_ing_cb);
+EXPORT_SYMBOL_GPL(flow_indr_add_block_cb);
-void flow_indr_del_block_ing_cb(struct flow_indr_block_ing_entry *entry)
+void flow_indr_del_block_cb(struct flow_indr_block_entry *entry)
{
- mutex_lock(&flow_indr_block_ing_cb_lock);
+ mutex_lock(&flow_indr_block_cb_lock);
list_del(&entry->list);
- mutex_unlock(&flow_indr_block_ing_cb_lock);
+ mutex_unlock(&flow_indr_block_cb_lock);
}
-EXPORT_SYMBOL_GPL(flow_indr_del_block_ing_cb);
+EXPORT_SYMBOL_GPL(flow_indr_del_block_cb);
static int __init init_flow_indr_rhashtable(void)
{
diff --git a/net/core/lwt_bpf.c b/net/core/lwt_bpf.c
index 74cfb8b5ab33..99a6de52b21d 100644
--- a/net/core/lwt_bpf.c
+++ b/net/core/lwt_bpf.c
@@ -230,9 +230,7 @@ static int bpf_lwt_xmit_reroute(struct sk_buff *skb)
fl6.daddr = iph6->daddr;
fl6.saddr = iph6->saddr;
- err = ipv6_stub->ipv6_dst_lookup(net, skb->sk, &dst, &fl6);
- if (unlikely(err))
- goto err;
+ dst = ipv6_stub->ipv6_dst_lookup_flow(net, skb->sk, &fl6, NULL);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto err;
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index ae3bcb1540ec..5c4624298996 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1459,14 +1459,17 @@ static int netdev_queue_add_kobject(struct net_device *dev, int index)
struct kobject *kobj = &queue->kobj;
int error = 0;
+ /* Kobject_put later will trigger netdev_queue_release call
+ * which decreases dev refcount: Take that reference here
+ */
+ dev_hold(queue->dev);
+
kobj->kset = dev->queues_kset;
error = kobject_init_and_add(kobj, &netdev_queue_ktype, NULL,
"tx-%u", index);
if (error)
goto err;
- dev_hold(queue->dev);
-
#ifdef CONFIG_BQL
error = sysfs_create_group(kobj, &dql_group);
if (error)
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 0b5ccb7c9bc8..02916f43bf63 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1250,7 +1250,9 @@ static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
vf_spoofchk.vf =
vf_linkstate.vf =
vf_rss_query_en.vf =
- vf_trust.vf = ivi.vf;
+ vf_trust.vf =
+ node_guid.vf =
+ port_guid.vf = ivi.vf;
memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
memcpy(vf_broadcast.broadcast, dev->broadcast, dev->addr_len);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 867e61df00db..973a71f4bc89 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5484,7 +5484,7 @@ static void skb_mod_eth_type(struct sk_buff *skb, struct ethhdr *hdr,
* Returns 0 on success, -errno otherwise.
*/
int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto,
- int mac_len)
+ int mac_len, bool ethernet)
{
struct mpls_shim_hdr *lse;
int err;
@@ -5515,7 +5515,7 @@ int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto,
lse->label_stack_entry = mpls_lse;
skb_postpush_rcsum(skb, lse, MPLS_HLEN);
- if (skb->dev && skb->dev->type == ARPHRD_ETHER)
+ if (ethernet)
skb_mod_eth_type(skb, eth_hdr(skb), mpls_proto);
skb->protocol = mpls_proto;
@@ -5529,12 +5529,14 @@ EXPORT_SYMBOL_GPL(skb_mpls_push);
* @skb: buffer
* @next_proto: ethertype of header after popped MPLS header
* @mac_len: length of the MAC header
+ * @ethernet: flag to indicate if ethernet header is present in packet
*
* Expects skb->data at mac header.
*
* Returns 0 on success, -errno otherwise.
*/
-int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto, int mac_len)
+int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto, int mac_len,
+ bool ethernet)
{
int err;
@@ -5553,7 +5555,7 @@ int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto, int mac_len)
skb_reset_mac_header(skb);
skb_set_network_header(skb, mac_len);
- if (skb->dev && skb->dev->type == ARPHRD_ETHER) {
+ if (ethernet) {
struct ethhdr *hdr;
/* use mpls_hdr() to get ethertype to account for VLANs. */
diff --git a/net/core/xdp.c b/net/core/xdp.c
index e334fad0a6b8..7c8390ad4dc6 100644
--- a/net/core/xdp.c
+++ b/net/core/xdp.c
@@ -80,12 +80,8 @@ static void mem_xa_remove(struct xdp_mem_allocator *xa)
{
trace_mem_disconnect(xa);
- mutex_lock(&mem_id_lock);
-
if (!rhashtable_remove_fast(mem_id_ht, &xa->node, mem_id_rht_params))
call_rcu(&xa->rcu, __xdp_mem_allocator_rcu_free);
-
- mutex_unlock(&mem_id_lock);
}
static void mem_allocator_disconnect(void *allocator)
@@ -93,6 +89,8 @@ static void mem_allocator_disconnect(void *allocator)
struct xdp_mem_allocator *xa;
struct rhashtable_iter iter;
+ mutex_lock(&mem_id_lock);
+
rhashtable_walk_enter(mem_id_ht, &iter);
do {
rhashtable_walk_start(&iter);
@@ -106,6 +104,8 @@ static void mem_allocator_disconnect(void *allocator)
} while (xa == ERR_PTR(-EAGAIN));
rhashtable_walk_exit(&iter);
+
+ mutex_unlock(&mem_id_lock);
}
static void mem_id_disconnect(int id)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.