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-rw-r--r--drivers/net/vrf.c1
-rw-r--r--drivers/net/vxlan.c4
-rw-r--r--include/net/dst.h3
-rw-r--r--include/net/dst_metadata.h15
-rw-r--r--include/net/ip6_fib.h1
-rw-r--r--include/net/lwtunnel.h12
-rw-r--r--include/net/route.h1
-rw-r--r--net/core/dst.c3
-rw-r--r--net/core/filter.c2
-rw-r--r--net/core/lwtunnel.c70
-rw-r--r--net/ipv4/ip_gre.c2
-rw-r--r--net/ipv4/route.c20
-rw-r--r--net/ipv6/ila.c14
-rw-r--r--net/ipv6/ip6_fib.c1
-rw-r--r--net/ipv6/route.c20
-rw-r--r--net/mpls/mpls_iptunnel.c7
-rw-r--r--net/openvswitch/vport-netdev.c2
17 files changed, 48 insertions, 130 deletions
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index dbeffe789185..b3d9c5546c79 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -295,7 +295,6 @@ static struct rtable *vrf_rtable_create(struct net_device *dev)
rth->rt_uses_gateway = 0;
INIT_LIST_HEAD(&rth->rt_uncached);
rth->rt_uncached_list = NULL;
- rth->rt_lwtstate = NULL;
}
return rth;
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index ebeb3def06c5..93613ffd8d7e 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1909,7 +1909,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
u32 flags = vxlan->flags;
/* FIXME: Support IPv6 */
- info = skb_tunnel_info(skb, AF_INET);
+ info = skb_tunnel_info(skb);
if (rdst) {
dst_port = rdst->remote_port ? rdst->remote_port : vxlan->cfg.dst_port;
@@ -2105,7 +2105,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
struct vxlan_fdb *f;
/* FIXME: Support IPv6 */
- info = skb_tunnel_info(skb, AF_INET);
+ info = skb_tunnel_info(skb);
skb_reset_mac_header(skb);
eth = eth_hdr(skb);
diff --git a/include/net/dst.h b/include/net/dst.h
index 2578811cef51..0a9a723f6c19 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -44,6 +44,7 @@ struct dst_entry {
#else
void *__pad1;
#endif
+ struct lwtunnel_state *lwtstate;
int (*input)(struct sk_buff *);
int (*output)(struct sock *sk, struct sk_buff *skb);
@@ -89,7 +90,7 @@ struct dst_entry {
* (L1_CACHE_SIZE would be too much)
*/
#ifdef CONFIG_64BIT
- long __pad_to_align_refcnt[2];
+ long __pad_to_align_refcnt[1];
#endif
/*
* __refcnt wants to be on a different cache line from
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index 075f523ff23f..2cb52d562272 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -23,22 +23,17 @@ static inline struct metadata_dst *skb_metadata_dst(struct sk_buff *skb)
return NULL;
}
-static inline struct ip_tunnel_info *skb_tunnel_info(struct sk_buff *skb,
- int family)
+static inline struct ip_tunnel_info *skb_tunnel_info(struct sk_buff *skb)
{
struct metadata_dst *md_dst = skb_metadata_dst(skb);
- struct rtable *rt;
+ struct dst_entry *dst;
if (md_dst)
return &md_dst->u.tun_info;
- switch (family) {
- case AF_INET:
- rt = (struct rtable *)skb_dst(skb);
- if (rt && rt->rt_lwtstate)
- return lwt_tun_info(rt->rt_lwtstate);
- break;
- }
+ dst = skb_dst(skb);
+ if (dst && dst->lwtstate)
+ return lwt_tun_info(dst->lwtstate);
return NULL;
}
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 276328e3daa6..063d30474cf6 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -133,7 +133,6 @@ struct rt6_info {
/* more non-fragment space at head required */
unsigned short rt6i_nfheader_len;
u8 rt6i_protocol;
- struct lwtunnel_state *rt6i_lwtstate;
};
static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)
diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index cfee53916ba5..843489884448 100644
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -87,9 +87,7 @@ int lwtunnel_get_encap_size(struct lwtunnel_state *lwtstate);
struct lwtunnel_state *lwtunnel_state_alloc(int hdr_len);
int lwtunnel_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b);
int lwtunnel_output(struct sock *sk, struct sk_buff *skb);
-int lwtunnel_output6(struct sock *sk, struct sk_buff *skb);
int lwtunnel_input(struct sk_buff *skb);
-int lwtunnel_input6(struct sk_buff *skb);
#else
@@ -164,21 +162,11 @@ static inline int lwtunnel_output(struct sock *sk, struct sk_buff *skb)
return -EOPNOTSUPP;
}
-static inline int lwtunnel_output6(struct sock *sk, struct sk_buff *skb)
-{
- return -EOPNOTSUPP;
-}
-
static inline int lwtunnel_input(struct sk_buff *skb)
{
return -EOPNOTSUPP;
}
-static inline int lwtunnel_input6(struct sk_buff *skb)
-{
- return -EOPNOTSUPP;
-}
-
#endif
#endif /* __NET_LWTUNNEL_H */
diff --git a/include/net/route.h b/include/net/route.h
index 6dda2c1bf8c6..395d79bb556c 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -66,7 +66,6 @@ struct rtable {
struct list_head rt_uncached;
struct uncached_list *rt_uncached_list;
- struct lwtunnel_state *rt_lwtstate;
};
static inline bool rt_is_input_route(const struct rtable *rt)
diff --git a/net/core/dst.c b/net/core/dst.c
index f8694d1b8702..50dcdbb0ee46 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -20,6 +20,7 @@
#include <net/net_namespace.h>
#include <linux/sched.h>
#include <linux/prefetch.h>
+#include <net/lwtunnel.h>
#include <net/dst.h>
#include <net/dst_metadata.h>
@@ -184,6 +185,7 @@ void dst_init(struct dst_entry *dst, struct dst_ops *ops,
#ifdef CONFIG_IP_ROUTE_CLASSID
dst->tclassid = 0;
#endif
+ dst->lwtstate = NULL;
atomic_set(&dst->__refcnt, initial_ref);
dst->__use = 0;
dst->lastuse = jiffies;
@@ -264,6 +266,7 @@ again:
kfree(dst);
else
kmem_cache_free(dst->ops->kmem_cachep, dst);
+ lwtstate_put(dst->lwtstate);
dst = child;
if (dst) {
diff --git a/net/core/filter.c b/net/core/filter.c
index 379568562ffb..b4adc961413f 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1489,7 +1489,7 @@ static u64 bpf_skb_get_tunnel_key(u64 r1, u64 r2, u64 size, u64 flags, u64 r5)
{
struct sk_buff *skb = (struct sk_buff *) (long) r1;
struct bpf_tunnel_key *to = (struct bpf_tunnel_key *) (long) r2;
- struct ip_tunnel_info *info = skb_tunnel_info(skb, AF_INET);
+ struct ip_tunnel_info *info = skb_tunnel_info(skb);
if (unlikely(size != sizeof(struct bpf_tunnel_key) || flags || !info))
return -EINVAL;
diff --git a/net/core/lwtunnel.c b/net/core/lwtunnel.c
index 3331585174d9..e924c2e08554 100644
--- a/net/core/lwtunnel.c
+++ b/net/core/lwtunnel.c
@@ -179,14 +179,16 @@ int lwtunnel_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b)
}
EXPORT_SYMBOL(lwtunnel_cmp_encap);
-int __lwtunnel_output(struct sock *sk, struct sk_buff *skb,
- struct lwtunnel_state *lwtstate)
+int lwtunnel_output(struct sock *sk, struct sk_buff *skb)
{
+ struct dst_entry *dst = skb_dst(skb);
const struct lwtunnel_encap_ops *ops;
+ struct lwtunnel_state *lwtstate;
int ret = -EINVAL;
- if (!lwtstate)
+ if (!dst)
goto drop;
+ lwtstate = dst->lwtstate;
if (lwtstate->type == LWTUNNEL_ENCAP_NONE ||
lwtstate->type > LWTUNNEL_ENCAP_MAX)
@@ -209,47 +211,18 @@ drop:
return ret;
}
-
-int lwtunnel_output6(struct sock *sk, struct sk_buff *skb)
-{
- struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
- struct lwtunnel_state *lwtstate = NULL;
-
- if (rt) {
- lwtstate = rt->rt6i_lwtstate;
- skb->dev = rt->dst.dev;
- }
-
- skb->protocol = htons(ETH_P_IPV6);
-
- return __lwtunnel_output(sk, skb, lwtstate);
-}
-EXPORT_SYMBOL(lwtunnel_output6);
-
-int lwtunnel_output(struct sock *sk, struct sk_buff *skb)
-{
- struct rtable *rt = (struct rtable *)skb_dst(skb);
- struct lwtunnel_state *lwtstate = NULL;
-
- if (rt) {
- lwtstate = rt->rt_lwtstate;
- skb->dev = rt->dst.dev;
- }
-
- skb->protocol = htons(ETH_P_IP);
-
- return __lwtunnel_output(sk, skb, lwtstate);
-}
EXPORT_SYMBOL(lwtunnel_output);
-int __lwtunnel_input(struct sk_buff *skb,
- struct lwtunnel_state *lwtstate)
+int lwtunnel_input(struct sk_buff *skb)
{
+ struct dst_entry *dst = skb_dst(skb);
const struct lwtunnel_encap_ops *ops;
+ struct lwtunnel_state *lwtstate;
int ret = -EINVAL;
- if (!lwtstate)
+ if (!dst)
goto drop;
+ lwtstate = dst->lwtstate;
if (lwtstate->type == LWTUNNEL_ENCAP_NONE ||
lwtstate->type > LWTUNNEL_ENCAP_MAX)
@@ -272,27 +245,4 @@ drop:
return ret;
}
-
-int lwtunnel_input6(struct sk_buff *skb)
-{
- struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
- struct lwtunnel_state *lwtstate = NULL;
-
- if (rt)
- lwtstate = rt->rt6i_lwtstate;
-
- return __lwtunnel_input(skb, lwtstate);
-}
-EXPORT_SYMBOL(lwtunnel_input6);
-
-int lwtunnel_input(struct sk_buff *skb)
-{
- struct rtable *rt = (struct rtable *)skb_dst(skb);
- struct lwtunnel_state *lwtstate = NULL;
-
- if (rt)
- lwtstate = rt->rt_lwtstate;
-
- return __lwtunnel_input(skb, lwtstate);
-}
EXPORT_SYMBOL(lwtunnel_input);
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 5193618b2600..1bf328182697 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -521,7 +521,7 @@ static void gre_fb_xmit(struct sk_buff *skb, struct net_device *dev)
__be16 df, flags;
int err;
- tun_info = skb_tunnel_info(skb, AF_INET);
+ tun_info = skb_tunnel_info(skb);
if (unlikely(!tun_info || tun_info->mode != IP_TUNNEL_INFO_TX))
goto err_free_skb;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 2403e85107f0..f3087aaa6dd8 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1359,7 +1359,6 @@ static void ipv4_dst_destroy(struct dst_entry *dst)
list_del(&rt->rt_uncached);
spin_unlock_bh(&ul->lock);
}
- lwtstate_put(rt->rt_lwtstate);
}
void rt_flush_dev(struct net_device *dev)
@@ -1408,7 +1407,7 @@ static void rt_set_nexthop(struct rtable *rt, __be32 daddr,
#ifdef CONFIG_IP_ROUTE_CLASSID
rt->dst.tclassid = nh->nh_tclassid;
#endif
- rt->rt_lwtstate = lwtstate_get(nh->nh_lwtstate);
+ rt->dst.lwtstate = lwtstate_get(nh->nh_lwtstate);
if (unlikely(fnhe))
cached = rt_bind_exception(rt, fnhe, daddr);
else if (!(rt->dst.flags & DST_NOCACHE))
@@ -1494,7 +1493,6 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
rth->rt_gateway = 0;
rth->rt_uses_gateway = 0;
INIT_LIST_HEAD(&rth->rt_uncached);
- rth->rt_lwtstate = NULL;
if (our) {
rth->dst.input= ip_local_deliver;
rth->rt_flags |= RTCF_LOCAL;
@@ -1624,19 +1622,18 @@ static int __mkroute_input(struct sk_buff *skb,
rth->rt_gateway = 0;
rth->rt_uses_gateway = 0;
INIT_LIST_HEAD(&rth->rt_uncached);
- rth->rt_lwtstate = NULL;
RT_CACHE_STAT_INC(in_slow_tot);
rth->dst.input = ip_forward;
rth->dst.output = ip_output;
rt_set_nexthop(rth, daddr, res, fnhe, res->fi, res->type, itag);
- if (lwtunnel_output_redirect(rth->rt_lwtstate)) {
- rth->rt_lwtstate->orig_output = rth->dst.output;
+ if (lwtunnel_output_redirect(rth->dst.lwtstate)) {
+ rth->dst.lwtstate->orig_output = rth->dst.output;
rth->dst.output = lwtunnel_output;
}
- if (lwtunnel_input_redirect(rth->rt_lwtstate)) {
- rth->rt_lwtstate->orig_input = rth->dst.input;
+ if (lwtunnel_input_redirect(rth->dst.lwtstate)) {
+ rth->dst.lwtstate->orig_input = rth->dst.input;
rth->dst.input = lwtunnel_input;
}
skb_dst_set(skb, &rth->dst);
@@ -1695,7 +1692,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
by fib_lookup.
*/
- tun_info = skb_tunnel_info(skb, AF_INET);
+ tun_info = skb_tunnel_info(skb);
if (tun_info && tun_info->mode == IP_TUNNEL_INFO_RX)
fl4.flowi4_tun_key.tun_id = tun_info->key.tun_id;
else
@@ -1815,7 +1812,6 @@ local_input:
rth->rt_gateway = 0;
rth->rt_uses_gateway = 0;
INIT_LIST_HEAD(&rth->rt_uncached);
- rth->rt_lwtstate = NULL;
RT_CACHE_STAT_INC(in_slow_tot);
if (res.type == RTN_UNREACHABLE) {
@@ -2006,7 +2002,6 @@ add:
rth->rt_gateway = 0;
rth->rt_uses_gateway = 0;
INIT_LIST_HEAD(&rth->rt_uncached);
- rth->rt_lwtstate = NULL;
RT_CACHE_STAT_INC(out_slow_tot);
if (flags & RTCF_LOCAL)
@@ -2029,7 +2024,7 @@ add:
}
rt_set_nexthop(rth, fl4->daddr, res, fnhe, fi, type, 0);
- if (lwtunnel_output_redirect(rth->rt_lwtstate))
+ if (lwtunnel_output_redirect(rth->dst.lwtstate))
rth->dst.output = lwtunnel_output;
return rth;
@@ -2293,7 +2288,6 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
rt->rt_uses_gateway = ort->rt_uses_gateway;
INIT_LIST_HEAD(&rt->rt_uncached);
- rt->rt_lwtstate = NULL;
dst_free(new);
}
diff --git a/net/ipv6/ila.c b/net/ipv6/ila.c
index 2540ab4b76d1..f011c3d5ca40 100644
--- a/net/ipv6/ila.c
+++ b/net/ipv6/ila.c
@@ -89,16 +89,13 @@ static void update_ipv6_locator(struct sk_buff *skb, struct ila_params *p)
static int ila_output(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
- struct rt6_info *rt6 = NULL;
if (skb->protocol != htons(ETH_P_IPV6))
goto drop;
- rt6 = (struct rt6_info *)dst;
+ update_ipv6_locator(skb, ila_params_lwtunnel(dst->lwtstate));
- update_ipv6_locator(skb, ila_params_lwtunnel(rt6->rt6i_lwtstate));
-
- return rt6->rt6i_lwtstate->orig_output(sk, skb);
+ return dst->lwtstate->orig_output(sk, skb);
drop:
kfree_skb(skb);
@@ -108,16 +105,13 @@ drop:
static int ila_input(struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
- struct rt6_info *rt6 = NULL;
if (skb->protocol != htons(ETH_P_IPV6))
goto drop;
- rt6 = (struct rt6_info *)dst;
-
- update_ipv6_locator(skb, ila_params_lwtunnel(rt6->rt6i_lwtstate));
+ update_ipv6_locator(skb, ila_params_lwtunnel(dst->lwtstate));
- return rt6->rt6i_lwtstate->orig_input(skb);
+ return dst->lwtstate->orig_input(skb);
drop:
kfree_skb(skb);
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 5693b5eb8482..865e777ae20c 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -178,7 +178,6 @@ static void rt6_free_pcpu(struct rt6_info *non_pcpu_rt)
static void rt6_release(struct rt6_info *rt)
{
if (atomic_dec_and_test(&rt->rt6i_ref)) {
- lwtstate_put(rt->rt6i_lwtstate);
rt6_free_pcpu(rt);
dst_free(&rt->dst);
}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c3733049715e..e6bbcdee7707 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1784,14 +1784,14 @@ int ip6_route_add(struct fib6_config *cfg)
cfg->fc_encap, &lwtstate);
if (err)
goto out;
- rt->rt6i_lwtstate = lwtstate_get(lwtstate);
- if (lwtunnel_output_redirect(rt->rt6i_lwtstate)) {
- rt->rt6i_lwtstate->orig_output = rt->dst.output;
- rt->dst.output = lwtunnel_output6;
+ rt->dst.lwtstate = lwtstate_get(lwtstate);
+ if (lwtunnel_output_redirect(rt->dst.lwtstate)) {
+ rt->dst.lwtstate->orig_output = rt->dst.output;
+ rt->dst.output = lwtunnel_output;
}
- if (lwtunnel_input_redirect(rt->rt6i_lwtstate)) {
- rt->rt6i_lwtstate->orig_input = rt->dst.input;
- rt->dst.input = lwtunnel_input6;
+ if (lwtunnel_input_redirect(rt->dst.lwtstate)) {
+ rt->dst.lwtstate->orig_input = rt->dst.input;
+ rt->dst.input = lwtunnel_input;
}
}
@@ -2174,7 +2174,7 @@ static void ip6_rt_copy_init(struct rt6_info *rt, struct rt6_info *ort)
#endif
rt->rt6i_prefsrc = ort->rt6i_prefsrc;
rt->rt6i_table = ort->rt6i_table;
- rt->rt6i_lwtstate = lwtstate_get(ort->rt6i_lwtstate);
+ rt->dst.lwtstate = lwtstate_get(ort->dst.lwtstate);
}
#ifdef CONFIG_IPV6_ROUTE_INFO
@@ -2838,7 +2838,7 @@ static inline size_t rt6_nlmsg_size(struct rt6_info *rt)
+ nla_total_size(sizeof(struct rta_cacheinfo))
+ nla_total_size(TCP_CA_NAME_MAX) /* RTAX_CC_ALGO */
+ nla_total_size(1) /* RTA_PREF */
- + lwtunnel_get_encap_size(rt->rt6i_lwtstate);
+ + lwtunnel_get_encap_size(rt->dst.lwtstate);
}
static int rt6_fill_node(struct net *net,
@@ -2991,7 +2991,7 @@ static int rt6_fill_node(struct net *net,
if (nla_put_u8(skb, RTA_PREF, IPV6_EXTRACT_PREF(rt->rt6i_flags)))
goto nla_put_failure;
- lwtunnel_fill_encap(skb, rt->rt6i_lwtstate);
+ lwtunnel_fill_encap(skb, rt->dst.lwtstate);
nlmsg_end(skb, nlh);
return 0;
diff --git a/net/mpls/mpls_iptunnel.c b/net/mpls/mpls_iptunnel.c
index 276f8c992218..3da5ca3ba563 100644
--- a/net/mpls/mpls_iptunnel.c
+++ b/net/mpls/mpls_iptunnel.c
@@ -48,7 +48,6 @@ int mpls_output(struct sock *sk, struct sk_buff *skb)
struct dst_entry *dst = skb_dst(skb);
struct rtable *rt = NULL;
struct rt6_info *rt6 = NULL;
- struct lwtunnel_state *lwtstate = NULL;
int err = 0;
bool bos;
int i;
@@ -58,11 +57,9 @@ int mpls_output(struct sock *sk, struct sk_buff *skb)
if (skb->protocol == htons(ETH_P_IP)) {
ttl = ip_hdr(skb)->ttl;
rt = (struct rtable *)dst;
- lwtstate = rt->rt_lwtstate;
} else if (skb->protocol == htons(ETH_P_IPV6)) {
ttl = ipv6_hdr(skb)->hop_limit;
rt6 = (struct rt6_info *)dst;
- lwtstate = rt6->rt6i_lwtstate;
} else {
goto drop;
}
@@ -72,12 +69,12 @@ int mpls_output(struct sock *sk, struct sk_buff *skb)
/* Find the output device */
out_dev = dst->dev;
if (!mpls_output_possible(out_dev) ||
- !lwtstate || skb_warn_if_lro(skb))
+ !dst->lwtstate || skb_warn_if_lro(skb))
goto drop;
skb_forward_csum(skb);
- tun_encap_info = mpls_lwtunnel_encap(lwtstate);
+ tun_encap_info = mpls_lwtunnel_encap(dst->lwtstate);
/* Verify the destination can hold the packet */
new_header_size = mpls_encap_size(tun_encap_info);
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 4b70aaa4a746..a75011505039 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -57,7 +57,7 @@ static void netdev_port_receive(struct vport *vport, struct sk_buff *skb)
skb_push(skb, ETH_HLEN);
ovs_skb_postpush_rcsum(skb, skb->data, ETH_HLEN);
- ovs_vport_receive(vport, skb, skb_tunnel_info(skb, AF_INET));
+ ovs_vport_receive(vport, skb, skb_tunnel_info(skb));
return;
error:
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.