Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 74e90d7..4420c8f 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -37,6 +37,7 @@
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
+#include <net/ip_tunnels.h>
#include <net/addrconf.h>
#include <net/xfrm.h>
#include <net/net_namespace.h>
@@ -47,21 +48,30 @@
static void xfrmi_dev_setup(struct net_device *dev);
static struct rtnl_link_ops xfrmi_link_ops __read_mostly;
static unsigned int xfrmi_net_id __read_mostly;
+static const struct net_device_ops xfrmi_netdev_ops;
+
+#define XFRMI_HASH_BITS 8
+#define XFRMI_HASH_SIZE BIT(XFRMI_HASH_BITS)
struct xfrmi_net {
/* lists for storing interfaces in use */
- struct xfrm_if __rcu *xfrmi[1];
+ struct xfrm_if __rcu *xfrmi[XFRMI_HASH_SIZE];
};
#define for_each_xfrmi_rcu(start, xi) \
for (xi = rcu_dereference(start); xi; xi = rcu_dereference(xi->next))
+static u32 xfrmi_hash(u32 if_id)
+{
+ return hash_32(if_id, XFRMI_HASH_BITS);
+}
+
static struct xfrm_if *xfrmi_lookup(struct net *net, struct xfrm_state *x)
{
struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
struct xfrm_if *xi;
- for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) {
+ for_each_xfrmi_rcu(xfrmn->xfrmi[xfrmi_hash(x->if_id)], xi) {
if (x->if_id == xi->p.if_id &&
(xi->dev->flags & IFF_UP))
return xi;
@@ -73,8 +83,7 @@
static struct xfrm_if *xfrmi_decode_session(struct sk_buff *skb,
unsigned short family)
{
- struct xfrmi_net *xfrmn;
- struct xfrm_if *xi;
+ struct net_device *dev;
int ifindex = 0;
if (!secpath_exists(skb) || !skb->dev)
@@ -88,23 +97,26 @@
ifindex = inet_sdif(skb);
break;
}
- if (!ifindex)
- ifindex = skb->dev->ifindex;
- xfrmn = net_generic(xs_net(xfrm_input_state(skb)), xfrmi_net_id);
+ if (ifindex) {
+ struct net *net = xs_net(xfrm_input_state(skb));
- for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) {
- if (ifindex == xi->dev->ifindex &&
- (xi->dev->flags & IFF_UP))
- return xi;
+ dev = dev_get_by_index_rcu(net, ifindex);
+ } else {
+ dev = skb->dev;
}
- return NULL;
+ if (!dev || !(dev->flags & IFF_UP))
+ return NULL;
+ if (dev->netdev_ops != &xfrmi_netdev_ops)
+ return NULL;
+
+ return netdev_priv(dev);
}
static void xfrmi_link(struct xfrmi_net *xfrmn, struct xfrm_if *xi)
{
- struct xfrm_if __rcu **xip = &xfrmn->xfrmi[0];
+ struct xfrm_if __rcu **xip = &xfrmn->xfrmi[xfrmi_hash(xi->p.if_id)];
rcu_assign_pointer(xi->next , rtnl_dereference(*xip));
rcu_assign_pointer(*xip, xi);
@@ -115,7 +127,7 @@
struct xfrm_if __rcu **xip;
struct xfrm_if *iter;
- for (xip = &xfrmn->xfrmi[0];
+ for (xip = &xfrmn->xfrmi[xfrmi_hash(xi->p.if_id)];
(iter = rtnl_dereference(*xip)) != NULL;
xip = &iter->next) {
if (xi == iter) {
@@ -145,7 +157,6 @@
if (err < 0)
goto out;
- dev_hold(dev);
xfrmi_link(xfrmn, xi);
return 0;
@@ -160,7 +171,7 @@
struct xfrm_if *xi;
struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
- for (xip = &xfrmn->xfrmi[0];
+ for (xip = &xfrmn->xfrmi[xfrmi_hash(p->if_id)];
(xi = rtnl_dereference(*xip)) != NULL;
xip = &xi->next)
if (xi->p.if_id == p->if_id)
@@ -175,7 +186,6 @@
struct xfrmi_net *xfrmn = net_generic(xi->net, xfrmi_net_id);
xfrmi_unlink(xfrmn, xi);
- dev_put(dev);
}
static void xfrmi_scrub_packet(struct sk_buff *skb, bool xnet)
@@ -200,7 +210,6 @@
static int xfrmi_rcv_cb(struct sk_buff *skb, int err)
{
const struct xfrm_mode *inner_mode;
- struct pcpu_sw_netstats *tstats;
struct net_device *dev;
struct xfrm_state *x;
struct xfrm_if *xi;
@@ -245,13 +254,7 @@
}
xfrmi_scrub_packet(skb, xnet);
-
- tstats = this_cpu_ptr(dev->tstats);
-
- u64_stats_update_begin(&tstats->syncp);
- tstats->rx_packets++;
- tstats->rx_bytes += skb->len;
- u64_stats_update_end(&tstats->syncp);
+ dev_sw_netstats_rx_add(dev, skb->len);
return 0;
}
@@ -541,27 +544,7 @@
static void xfrmi_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *s)
{
- int cpu;
-
- for_each_possible_cpu(cpu) {
- struct pcpu_sw_netstats *stats;
- struct pcpu_sw_netstats tmp;
- int start;
-
- stats = per_cpu_ptr(dev->tstats, cpu);
- do {
- start = u64_stats_fetch_begin_irq(&stats->syncp);
- tmp.rx_packets = stats->rx_packets;
- tmp.rx_bytes = stats->rx_bytes;
- tmp.tx_packets = stats->tx_packets;
- tmp.tx_bytes = stats->tx_bytes;
- } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
-
- s->rx_packets += tmp.rx_packets;
- s->rx_bytes += tmp.rx_bytes;
- s->tx_packets += tmp.tx_packets;
- s->tx_bytes += tmp.tx_bytes;
- }
+ dev_fetch_sw_netstats(s, dev->tstats);
s->rx_dropped = dev->stats.rx_dropped;
s->tx_dropped = dev->stats.tx_dropped;
@@ -586,6 +569,7 @@
static void xfrmi_dev_setup(struct net_device *dev)
{
dev->netdev_ops = &xfrmi_netdev_ops;
+ dev->header_ops = &ip_tunnel_header_ops;
dev->type = ARPHRD_NONE;
dev->mtu = ETH_DATA_LEN;
dev->min_mtu = ETH_MIN_MTU;
@@ -659,11 +643,16 @@
struct netlink_ext_ack *extack)
{
struct net *net = dev_net(dev);
- struct xfrm_if_parms p;
+ struct xfrm_if_parms p = {};
struct xfrm_if *xi;
int err;
xfrmi_netlink_parms(data, &p);
+ if (!p.if_id) {
+ NL_SET_ERR_MSG(extack, "if_id must be non zero");
+ return -EINVAL;
+ }
+
xi = xfrmi_locate(net, &p);
if (xi)
return -EEXIST;
@@ -688,9 +677,14 @@
{
struct xfrm_if *xi = netdev_priv(dev);
struct net *net = xi->net;
- struct xfrm_if_parms p;
+ struct xfrm_if_parms p = {};
xfrmi_netlink_parms(data, &p);
+ if (!p.if_id) {
+ NL_SET_ERR_MSG(extack, "if_id must be non zero");
+ return -EINVAL;
+ }
+
xi = xfrmi_locate(net, &p);
if (!xi) {
xi = netdev_priv(dev);
@@ -753,28 +747,6 @@
.get_link_net = xfrmi_get_link_net,
};
-static void __net_exit xfrmi_destroy_interfaces(struct xfrmi_net *xfrmn)
-{
- struct xfrm_if *xi;
- LIST_HEAD(list);
-
- xi = rtnl_dereference(xfrmn->xfrmi[0]);
- if (!xi)
- return;
-
- unregister_netdevice_queue(xi->dev, &list);
- unregister_netdevice_many(&list);
-}
-
-static void __net_exit xfrmi_exit_net(struct net *net)
-{
- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
-
- rtnl_lock();
- xfrmi_destroy_interfaces(xfrmn);
- rtnl_unlock();
-}
-
static void __net_exit xfrmi_exit_batch_net(struct list_head *net_exit_list)
{
struct net *net;
@@ -785,11 +757,14 @@
struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
struct xfrm_if __rcu **xip;
struct xfrm_if *xi;
+ int i;
- for (xip = &xfrmn->xfrmi[0];
- (xi = rtnl_dereference(*xip)) != NULL;
- xip = &xi->next)
- unregister_netdevice_queue(xi->dev, &list);
+ for (i = 0; i < XFRMI_HASH_SIZE; i++) {
+ for (xip = &xfrmn->xfrmi[i];
+ (xi = rtnl_dereference(*xip)) != NULL;
+ xip = &xi->next)
+ unregister_netdevice_queue(xi->dev, &list);
+ }
}
unregister_netdevice_many(&list);
rtnl_unlock();
@@ -797,13 +772,13 @@
static struct pernet_operations xfrmi_net_ops = {
.exit_batch = xfrmi_exit_batch_net,
- .exit = xfrmi_exit_net,
.id = &xfrmi_net_id,
.size = sizeof(struct xfrmi_net),
};
static struct xfrm6_protocol xfrmi_esp6_protocol __read_mostly = {
.handler = xfrm6_rcv,
+ .input_handler = xfrm_input,
.cb_handler = xfrmi_rcv_cb,
.err_handler = xfrmi6_err,
.priority = 10,
@@ -811,6 +786,7 @@
static struct xfrm6_protocol xfrmi_ah6_protocol __read_mostly = {
.handler = xfrm6_rcv,
+ .input_handler = xfrm_input,
.cb_handler = xfrmi_rcv_cb,
.err_handler = xfrmi6_err,
.priority = 10,
@@ -818,11 +794,39 @@
static struct xfrm6_protocol xfrmi_ipcomp6_protocol __read_mostly = {
.handler = xfrm6_rcv,
+ .input_handler = xfrm_input,
.cb_handler = xfrmi_rcv_cb,
.err_handler = xfrmi6_err,
.priority = 10,
};
+#if IS_REACHABLE(CONFIG_INET6_XFRM_TUNNEL)
+static int xfrmi6_rcv_tunnel(struct sk_buff *skb)
+{
+ const xfrm_address_t *saddr;
+ __be32 spi;
+
+ saddr = (const xfrm_address_t *)&ipv6_hdr(skb)->saddr;
+ spi = xfrm6_tunnel_spi_lookup(dev_net(skb->dev), saddr);
+
+ return xfrm6_rcv_spi(skb, IPPROTO_IPV6, spi, NULL);
+}
+
+static struct xfrm6_tunnel xfrmi_ipv6_handler __read_mostly = {
+ .handler = xfrmi6_rcv_tunnel,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi6_err,
+ .priority = 2,
+};
+
+static struct xfrm6_tunnel xfrmi_ip6ip_handler __read_mostly = {
+ .handler = xfrmi6_rcv_tunnel,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi6_err,
+ .priority = 2,
+};
+#endif
+
static struct xfrm4_protocol xfrmi_esp4_protocol __read_mostly = {
.handler = xfrm4_rcv,
.input_handler = xfrm_input,
@@ -847,6 +851,27 @@
.priority = 10,
};
+#if IS_REACHABLE(CONFIG_INET_XFRM_TUNNEL)
+static int xfrmi4_rcv_tunnel(struct sk_buff *skb)
+{
+ return xfrm4_rcv_spi(skb, IPPROTO_IPIP, ip_hdr(skb)->saddr);
+}
+
+static struct xfrm_tunnel xfrmi_ipip_handler __read_mostly = {
+ .handler = xfrmi4_rcv_tunnel,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi4_err,
+ .priority = 3,
+};
+
+static struct xfrm_tunnel xfrmi_ipip6_handler __read_mostly = {
+ .handler = xfrmi4_rcv_tunnel,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi4_err,
+ .priority = 2,
+};
+#endif
+
static int __init xfrmi4_init(void)
{
int err;
@@ -860,9 +885,23 @@
err = xfrm4_protocol_register(&xfrmi_ipcomp4_protocol, IPPROTO_COMP);
if (err < 0)
goto xfrm_proto_comp_failed;
+#if IS_REACHABLE(CONFIG_INET_XFRM_TUNNEL)
+ err = xfrm4_tunnel_register(&xfrmi_ipip_handler, AF_INET);
+ if (err < 0)
+ goto xfrm_tunnel_ipip_failed;
+ err = xfrm4_tunnel_register(&xfrmi_ipip6_handler, AF_INET6);
+ if (err < 0)
+ goto xfrm_tunnel_ipip6_failed;
+#endif
return 0;
+#if IS_REACHABLE(CONFIG_INET_XFRM_TUNNEL)
+xfrm_tunnel_ipip6_failed:
+ xfrm4_tunnel_deregister(&xfrmi_ipip_handler, AF_INET);
+xfrm_tunnel_ipip_failed:
+ xfrm4_protocol_deregister(&xfrmi_ipcomp4_protocol, IPPROTO_COMP);
+#endif
xfrm_proto_comp_failed:
xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH);
xfrm_proto_ah_failed:
@@ -873,6 +912,10 @@
static void xfrmi4_fini(void)
{
+#if IS_REACHABLE(CONFIG_INET_XFRM_TUNNEL)
+ xfrm4_tunnel_deregister(&xfrmi_ipip6_handler, AF_INET6);
+ xfrm4_tunnel_deregister(&xfrmi_ipip_handler, AF_INET);
+#endif
xfrm4_protocol_deregister(&xfrmi_ipcomp4_protocol, IPPROTO_COMP);
xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH);
xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP);
@@ -891,9 +934,23 @@
err = xfrm6_protocol_register(&xfrmi_ipcomp6_protocol, IPPROTO_COMP);
if (err < 0)
goto xfrm_proto_comp_failed;
+#if IS_REACHABLE(CONFIG_INET6_XFRM_TUNNEL)
+ err = xfrm6_tunnel_register(&xfrmi_ipv6_handler, AF_INET6);
+ if (err < 0)
+ goto xfrm_tunnel_ipv6_failed;
+ err = xfrm6_tunnel_register(&xfrmi_ip6ip_handler, AF_INET);
+ if (err < 0)
+ goto xfrm_tunnel_ip6ip_failed;
+#endif
return 0;
+#if IS_REACHABLE(CONFIG_INET6_XFRM_TUNNEL)
+xfrm_tunnel_ip6ip_failed:
+ xfrm6_tunnel_deregister(&xfrmi_ipv6_handler, AF_INET6);
+xfrm_tunnel_ipv6_failed:
+ xfrm6_protocol_deregister(&xfrmi_ipcomp6_protocol, IPPROTO_COMP);
+#endif
xfrm_proto_comp_failed:
xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH);
xfrm_proto_ah_failed:
@@ -904,6 +961,10 @@
static void xfrmi6_fini(void)
{
+#if IS_REACHABLE(CONFIG_INET6_XFRM_TUNNEL)
+ xfrm6_tunnel_deregister(&xfrmi_ip6ip_handler, AF_INET);
+ xfrm6_tunnel_deregister(&xfrmi_ipv6_handler, AF_INET6);
+#endif
xfrm6_protocol_deregister(&xfrmi_ipcomp6_protocol, IPPROTO_COMP);
xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH);
xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP);