Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 4a94956..ba3dfac 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -1,80 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* Copyright (c) 2014 Mahesh Bandewar <maheshb@google.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
*/
#include "ipvlan.h"
-static unsigned int ipvlan_netid __read_mostly;
-
-struct ipvlan_netns {
- unsigned int ipvl_nf_hook_refcnt;
-};
-
-static const struct nf_hook_ops ipvl_nfops[] = {
- {
- .hook = ipvlan_nf_input,
- .pf = NFPROTO_IPV4,
- .hooknum = NF_INET_LOCAL_IN,
- .priority = INT_MAX,
- },
-#if IS_ENABLED(CONFIG_IPV6)
- {
- .hook = ipvlan_nf_input,
- .pf = NFPROTO_IPV6,
- .hooknum = NF_INET_LOCAL_IN,
- .priority = INT_MAX,
- },
-#endif
-};
-
-static const struct l3mdev_ops ipvl_l3mdev_ops = {
- .l3mdev_l3_rcv = ipvlan_l3_rcv,
-};
-
-static void ipvlan_adjust_mtu(struct ipvl_dev *ipvlan, struct net_device *dev)
-{
- ipvlan->dev->mtu = dev->mtu;
-}
-
-static int ipvlan_register_nf_hook(struct net *net)
-{
- struct ipvlan_netns *vnet = net_generic(net, ipvlan_netid);
- int err = 0;
-
- if (!vnet->ipvl_nf_hook_refcnt) {
- err = nf_register_net_hooks(net, ipvl_nfops,
- ARRAY_SIZE(ipvl_nfops));
- if (!err)
- vnet->ipvl_nf_hook_refcnt = 1;
- } else {
- vnet->ipvl_nf_hook_refcnt++;
- }
-
- return err;
-}
-
-static void ipvlan_unregister_nf_hook(struct net *net)
-{
- struct ipvlan_netns *vnet = net_generic(net, ipvlan_netid);
-
- if (WARN_ON(!vnet->ipvl_nf_hook_refcnt))
- return;
-
- vnet->ipvl_nf_hook_refcnt--;
- if (!vnet->ipvl_nf_hook_refcnt)
- nf_unregister_net_hooks(net, ipvl_nfops,
- ARRAY_SIZE(ipvl_nfops));
-}
-
-static int ipvlan_set_port_mode(struct ipvl_port *port, u16 nval)
+static int ipvlan_set_port_mode(struct ipvl_port *port, u16 nval,
+ struct netlink_ext_ack *extack)
{
struct ipvl_dev *ipvlan;
- struct net_device *mdev = port->dev;
unsigned int flags;
int err;
@@ -84,27 +17,24 @@
flags = ipvlan->dev->flags;
if (nval == IPVLAN_MODE_L3 || nval == IPVLAN_MODE_L3S) {
err = dev_change_flags(ipvlan->dev,
- flags | IFF_NOARP);
+ flags | IFF_NOARP,
+ extack);
} else {
err = dev_change_flags(ipvlan->dev,
- flags & ~IFF_NOARP);
+ flags & ~IFF_NOARP,
+ extack);
}
if (unlikely(err))
goto fail;
}
if (nval == IPVLAN_MODE_L3S) {
/* New mode is L3S */
- err = ipvlan_register_nf_hook(read_pnet(&port->pnet));
- if (!err) {
- mdev->l3mdev_ops = &ipvl_l3mdev_ops;
- mdev->priv_flags |= IFF_L3MDEV_MASTER;
- } else
+ err = ipvlan_l3s_register(port);
+ if (err)
goto fail;
} else if (port->mode == IPVLAN_MODE_L3S) {
/* Old mode was L3S */
- mdev->priv_flags &= ~IFF_L3MDEV_MASTER;
- ipvlan_unregister_nf_hook(read_pnet(&port->pnet));
- mdev->l3mdev_ops = NULL;
+ ipvlan_l3s_unregister(port);
}
port->mode = nval;
}
@@ -116,9 +46,11 @@
flags = ipvlan->dev->flags;
if (port->mode == IPVLAN_MODE_L3 ||
port->mode == IPVLAN_MODE_L3S)
- dev_change_flags(ipvlan->dev, flags | IFF_NOARP);
+ dev_change_flags(ipvlan->dev, flags | IFF_NOARP,
+ NULL);
else
- dev_change_flags(ipvlan->dev, flags & ~IFF_NOARP);
+ dev_change_flags(ipvlan->dev, flags & ~IFF_NOARP,
+ NULL);
}
return err;
@@ -161,11 +93,8 @@
struct ipvl_port *port = ipvlan_port_get_rtnl(dev);
struct sk_buff *skb;
- if (port->mode == IPVLAN_MODE_L3S) {
- dev->priv_flags &= ~IFF_L3MDEV_MASTER;
- ipvlan_unregister_nf_hook(dev_net(dev));
- dev->l3mdev_ops = NULL;
- }
+ if (port->mode == IPVLAN_MODE_L3S)
+ ipvlan_l3s_unregister(port);
netdev_rx_handler_unregister(dev);
cancel_work_sync(&port->wq);
while ((skb = __skb_dequeue(&port->backlog)) != NULL) {
@@ -178,7 +107,7 @@
}
#define IPVLAN_FEATURES \
- (NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
+ (NETIF_F_SG | NETIF_F_CSUM_MASK | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
NETIF_F_GSO | NETIF_F_TSO | NETIF_F_GSO_ROBUST | \
NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GRO | NETIF_F_RXCSUM | \
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER)
@@ -197,12 +126,11 @@
(phy_dev->state & IPVLAN_STATE_MASK);
dev->features = phy_dev->features & IPVLAN_FEATURES;
dev->features |= NETIF_F_LLTX | NETIF_F_VLAN_CHALLENGED;
+ dev->hw_enc_features |= dev->features;
dev->gso_max_size = phy_dev->gso_max_size;
dev->gso_max_segs = phy_dev->gso_max_segs;
dev->hard_header_len = phy_dev->hard_header_len;
- netdev_lockdep_set_classes(dev);
-
ipvlan->pcpu_stats = netdev_alloc_pcpu_stats(struct ipvl_pcpu_stats);
if (!ipvlan->pcpu_stats)
return -ENOMEM;
@@ -441,6 +369,11 @@
.cache_update = eth_header_cache_update,
};
+static void ipvlan_adjust_mtu(struct ipvl_dev *ipvlan, struct net_device *dev)
+{
+ ipvlan->dev->mtu = dev->mtu;
+}
+
static bool netif_is_ipvlan(const struct net_device *dev)
{
/* both ipvlan and ipvtap devices use the same netdev_ops */
@@ -494,11 +427,13 @@
if (!data)
return 0;
+ if (!ns_capable(dev_net(ipvlan->phy_dev)->user_ns, CAP_NET_ADMIN))
+ return -EPERM;
if (data[IFLA_IPVLAN_MODE]) {
u16 nmode = nla_get_u16(data[IFLA_IPVLAN_MODE]);
- err = ipvlan_set_port_mode(port, nmode);
+ err = ipvlan_set_port_mode(port, nmode, extack);
}
if (!err && data[IFLA_IPVLAN_FLAGS]) {
@@ -535,7 +470,7 @@
if (data[IFLA_IPVLAN_MODE]) {
u16 mode = nla_get_u16(data[IFLA_IPVLAN_MODE]);
- if (mode < IPVLAN_MODE_L2 || mode >= IPVLAN_MODE_MAX)
+ if (mode >= IPVLAN_MODE_MAX)
return -EINVAL;
}
if (data[IFLA_IPVLAN_FLAGS]) {
@@ -596,6 +531,8 @@
struct ipvl_dev *tmp = netdev_priv(phy_dev);
phy_dev = tmp->phy_dev;
+ if (!ns_capable(dev_net(phy_dev)->user_ns, CAP_NET_ADMIN))
+ return -EPERM;
} else if (!netif_is_ipvlan_port(phy_dev)) {
/* Exit early if the underlying link is invalid or busy */
if (phy_dev->type != ARPHRD_ETHER ||
@@ -672,7 +609,7 @@
if (data && data[IFLA_IPVLAN_MODE])
mode = nla_get_u16(data[IFLA_IPVLAN_MODE]);
- err = ipvlan_set_port_mode(port, mode);
+ err = ipvlan_set_port_mode(port, mode, extack);
if (err)
goto unlink_netdev;
@@ -754,10 +691,13 @@
static int ipvlan_device_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
+ struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr);
+ struct netdev_notifier_pre_changeaddr_info *prechaddr_info;
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
struct ipvl_dev *ipvlan, *next;
struct ipvl_port *port;
LIST_HEAD(lst_kill);
+ int err;
if (!netif_is_ipvlan_port(dev))
return NOTIFY_DONE;
@@ -773,7 +713,6 @@
case NETDEV_REGISTER: {
struct net *oldnet, *newnet = dev_net(dev);
- struct ipvlan_netns *old_vnet;
oldnet = read_pnet(&port->pnet);
if (net_eq(newnet, oldnet))
@@ -781,12 +720,7 @@
write_pnet(&port->pnet, newnet);
- old_vnet = net_generic(oldnet, ipvlan_netid);
- if (!old_vnet->ipvl_nf_hook_refcnt)
- break;
-
- ipvlan_register_nf_hook(newnet);
- ipvlan_unregister_nf_hook(oldnet);
+ ipvlan_migrate_l3s_hook(oldnet, newnet);
break;
}
case NETDEV_UNREGISTER:
@@ -813,6 +747,17 @@
ipvlan_adjust_mtu(ipvlan, dev);
break;
+ case NETDEV_PRE_CHANGEADDR:
+ prechaddr_info = ptr;
+ list_for_each_entry(ipvlan, &port->ipvlans, pnode) {
+ err = dev_pre_changeaddr_notify(ipvlan->dev,
+ prechaddr_info->dev_addr,
+ extack);
+ if (err)
+ return notifier_from_errno(err);
+ }
+ break;
+
case NETDEV_CHANGEADDR:
list_for_each_entry(ipvlan, &port->ipvlans, pnode) {
ether_addr_copy(ipvlan->dev->dev_addr, dev->dev_addr);
@@ -1049,23 +994,6 @@
};
#endif
-static void ipvlan_ns_exit(struct net *net)
-{
- struct ipvlan_netns *vnet = net_generic(net, ipvlan_netid);
-
- if (WARN_ON_ONCE(vnet->ipvl_nf_hook_refcnt)) {
- vnet->ipvl_nf_hook_refcnt = 0;
- nf_unregister_net_hooks(net, ipvl_nfops,
- ARRAY_SIZE(ipvl_nfops));
- }
-}
-
-static struct pernet_operations ipvlan_net_ops = {
- .id = &ipvlan_netid,
- .size = sizeof(struct ipvlan_netns),
- .exit = ipvlan_ns_exit,
-};
-
static int __init ipvlan_init_module(void)
{
int err;
@@ -1080,13 +1008,13 @@
register_inetaddr_notifier(&ipvlan_addr4_notifier_block);
register_inetaddr_validator_notifier(&ipvlan_addr4_vtor_notifier_block);
- err = register_pernet_subsys(&ipvlan_net_ops);
+ err = ipvlan_l3s_init();
if (err < 0)
goto error;
err = ipvlan_link_register(&ipvlan_link_ops);
if (err < 0) {
- unregister_pernet_subsys(&ipvlan_net_ops);
+ ipvlan_l3s_cleanup();
goto error;
}
@@ -1107,7 +1035,7 @@
static void __exit ipvlan_cleanup_module(void)
{
rtnl_link_unregister(&ipvlan_link_ops);
- unregister_pernet_subsys(&ipvlan_net_ops);
+ ipvlan_l3s_cleanup();
unregister_netdevice_notifier(&ipvlan_notifier_block);
unregister_inetaddr_notifier(&ipvlan_addr4_notifier_block);
unregister_inetaddr_validator_notifier(