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-rw-r--r--drivers/net/gtp.c2
-rw-r--r--include/net/dst.h2
-rw-r--r--include/net/dst_ops.h3
-rw-r--r--net/bridge/br_nf_core.c3
-rw-r--r--net/decnet/dn_route.c6
-rw-r--r--net/ipv4/inet_connection_sock.c2
-rw-r--r--net/ipv4/route.c9
-rw-r--r--net/ipv4/xfrm4_policy.c5
-rw-r--r--net/ipv6/inet6_connection_sock.c2
-rw-r--r--net/ipv6/ip6_gre.c2
-rw-r--r--net/ipv6/route.c22
-rw-r--r--net/ipv6/xfrm6_policy.c5
-rw-r--r--net/netfilter/ipvs/ip_vs_xmit.c2
-rw-r--r--net/sctp/transport.c2
14 files changed, 42 insertions, 25 deletions
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index d178d5bad7e4..9e3963f46458 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -545,7 +545,7 @@ static int gtp_build_skb_ip4(struct sk_buff *skb, struct net_device *dev,
mtu = dst_mtu(&rt->dst);
}
- rt->dst.ops->update_pmtu(&rt->dst, NULL, skb, mtu);
+ rt->dst.ops->update_pmtu(&rt->dst, NULL, skb, mtu, true);
if (!skb_is_gso(skb) && (iph->frag_off & htons(IP_DF)) &&
mtu < ntohs(iph->tot_len)) {
diff --git a/include/net/dst.h b/include/net/dst.h
index 851cf1124240..aac3f5b4c7b5 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -527,7 +527,7 @@ static inline void skb_dst_update_pmtu(struct sk_buff *skb, u32 mtu)
struct dst_entry *dst = skb_dst(skb);
if (dst && dst->ops->update_pmtu)
- dst->ops->update_pmtu(dst, NULL, skb, mtu);
+ dst->ops->update_pmtu(dst, NULL, skb, mtu, true);
}
static inline void skb_tunnel_check_pmtu(struct sk_buff *skb,
diff --git a/include/net/dst_ops.h b/include/net/dst_ops.h
index 5ec645f27ee3..443863c7b8da 100644
--- a/include/net/dst_ops.h
+++ b/include/net/dst_ops.h
@@ -27,7 +27,8 @@ struct dst_ops {
struct dst_entry * (*negative_advice)(struct dst_entry *);
void (*link_failure)(struct sk_buff *);
void (*update_pmtu)(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu);
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh);
void (*redirect)(struct dst_entry *dst, struct sock *sk,
struct sk_buff *skb);
int (*local_out)(struct net *net, struct sock *sk, struct sk_buff *skb);
diff --git a/net/bridge/br_nf_core.c b/net/bridge/br_nf_core.c
index 8e2d7cfa4e16..d88e724d5755 100644
--- a/net/bridge/br_nf_core.c
+++ b/net/bridge/br_nf_core.c
@@ -26,7 +26,8 @@
#endif
static void fake_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu)
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh)
{
}
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 1c002c0fb712..658191fba94e 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -118,7 +118,8 @@ static void dn_dst_ifdown(struct dst_entry *, struct net_device *dev, int how);
static struct dst_entry *dn_dst_negative_advice(struct dst_entry *);
static void dn_dst_link_failure(struct sk_buff *);
static void dn_dst_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb , u32 mtu);
+ struct sk_buff *skb , u32 mtu,
+ bool confirm_neigh);
static void dn_dst_redirect(struct dst_entry *dst, struct sock *sk,
struct sk_buff *skb);
static struct neighbour *dn_dst_neigh_lookup(const struct dst_entry *dst,
@@ -259,7 +260,8 @@ static int dn_dst_gc(struct dst_ops *ops)
* advertise to the other end).
*/
static void dn_dst_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu)
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh)
{
struct dn_route *rt = (struct dn_route *) dst;
struct neighbour *n = rt->n;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 15e7f7915a21..636a11c56cf5 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -1089,7 +1089,7 @@ struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu)
if (!dst)
goto out;
}
- dst->ops->update_pmtu(dst, sk, NULL, mtu);
+ dst->ops->update_pmtu(dst, sk, NULL, mtu, true);
dst = __sk_dst_check(sk, 0);
if (!dst)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 69127f6039b2..4590af506244 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -142,7 +142,8 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst);
static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst);
static void ipv4_link_failure(struct sk_buff *skb);
static void ip_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu);
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh);
static void ip_do_redirect(struct dst_entry *dst, struct sock *sk,
struct sk_buff *skb);
static void ipv4_dst_destroy(struct dst_entry *dst);
@@ -1035,7 +1036,8 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
}
static void ip_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu)
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh)
{
struct rtable *rt = (struct rtable *) dst;
struct flowi4 fl4;
@@ -2559,7 +2561,8 @@ static unsigned int ipv4_blackhole_mtu(const struct dst_entry *dst)
}
static void ipv4_rt_blackhole_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu)
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh)
{
}
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 2b144b92ae46..1e5e2e4be0b2 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -222,12 +222,13 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
}
static void xfrm4_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu)
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh)
{
struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
struct dst_entry *path = xdst->route;
- path->ops->update_pmtu(path, sk, skb, mtu);
+ path->ops->update_pmtu(path, sk, skb, mtu, confirm_neigh);
}
static void xfrm4_redirect(struct dst_entry *dst, struct sock *sk,
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 9a31d13bf180..890adadcda16 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -150,7 +150,7 @@ struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu)
if (IS_ERR(dst))
return NULL;
- dst->ops->update_pmtu(dst, sk, NULL, mtu);
+ dst->ops->update_pmtu(dst, sk, NULL, mtu, true);
dst = inet6_csk_route_socket(sk, &fl6);
return IS_ERR(dst) ? NULL : dst;
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 8fd28edd6ac5..9853fa47641e 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1060,7 +1060,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
/* TooBig packet may have updated dst->dev's mtu */
if (!t->parms.collect_md && dst && dst_mtu(dst) > dst->dev->mtu)
- dst->ops->update_pmtu(dst, NULL, skb, dst->dev->mtu);
+ dst->ops->update_pmtu(dst, NULL, skb, dst->dev->mtu, true);
err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
NEXTHDR_GRE);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 076c21f6a645..f8fe4c9ead4d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -99,7 +99,8 @@ static int ip6_pkt_prohibit(struct sk_buff *skb);
static int ip6_pkt_prohibit_out(struct net *net, struct sock *sk, struct sk_buff *skb);
static void ip6_link_failure(struct sk_buff *skb);
static void ip6_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu);
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh);
static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk,
struct sk_buff *skb);
static int rt6_score_route(struct fib6_info *rt, int oif, int strict);
@@ -266,7 +267,8 @@ static unsigned int ip6_blackhole_mtu(const struct dst_entry *dst)
}
static void ip6_rt_blackhole_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu)
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh)
{
}
@@ -2352,7 +2354,8 @@ static bool rt6_cache_allowed_for_pmtu(const struct rt6_info *rt)
}
static void __ip6_rt_update_pmtu(struct dst_entry *dst, const struct sock *sk,
- const struct ipv6hdr *iph, u32 mtu)
+ const struct ipv6hdr *iph, u32 mtu,
+ bool confirm_neigh)
{
const struct in6_addr *daddr, *saddr;
struct rt6_info *rt6 = (struct rt6_info *)dst;
@@ -2370,7 +2373,10 @@ static void __ip6_rt_update_pmtu(struct dst_entry *dst, const struct sock *sk,
daddr = NULL;
saddr = NULL;
}
- dst_confirm_neigh(dst, daddr);
+
+ if (confirm_neigh)
+ dst_confirm_neigh(dst, daddr);
+
mtu = max_t(u32, mtu, IPV6_MIN_MTU);
if (mtu >= dst_mtu(dst))
return;
@@ -2401,9 +2407,11 @@ static void __ip6_rt_update_pmtu(struct dst_entry *dst, const struct sock *sk,
}
static void ip6_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu)
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh)
{
- __ip6_rt_update_pmtu(dst, sk, skb ? ipv6_hdr(skb) : NULL, mtu);
+ __ip6_rt_update_pmtu(dst, sk, skb ? ipv6_hdr(skb) : NULL, mtu,
+ confirm_neigh);
}
void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,
@@ -2423,7 +2431,7 @@ void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,
dst = ip6_route_output(net, NULL, &fl6);
if (!dst->error)
- __ip6_rt_update_pmtu(dst, NULL, iph, ntohl(mtu));
+ __ip6_rt_update_pmtu(dst, NULL, iph, ntohl(mtu), true);
dst_release(dst);
}
EXPORT_SYMBOL_GPL(ip6_update_pmtu);
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index d35bcf92969c..30232591cf2b 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -221,12 +221,13 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
}
static void xfrm6_update_pmtu(struct dst_entry *dst, struct sock *sk,
- struct sk_buff *skb, u32 mtu)
+ struct sk_buff *skb, u32 mtu,
+ bool confirm_neigh)
{
struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
struct dst_entry *path = xdst->route;
- path->ops->update_pmtu(path, sk, skb, mtu);
+ path->ops->update_pmtu(path, sk, skb, mtu, confirm_neigh);
}
static void xfrm6_redirect(struct dst_entry *dst, struct sock *sk,
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index 473cce2a5231..3f75cd947045 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -209,7 +209,7 @@ static inline void maybe_update_pmtu(int skb_af, struct sk_buff *skb, int mtu)
struct rtable *ort = skb_rtable(skb);
if (!skb->dev && sk && sk_fullsock(sk))
- ort->dst.ops->update_pmtu(&ort->dst, sk, NULL, mtu);
+ ort->dst.ops->update_pmtu(&ort->dst, sk, NULL, mtu, true);
}
static inline bool ensure_mtu_is_adequate(struct netns_ipvs *ipvs, int skb_af,
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index ad158d311ffa..c0d55ed62d2e 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -278,7 +278,7 @@ bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
pf->af->from_sk(&addr, sk);
pf->to_sk_daddr(&t->ipaddr, sk);
- dst->ops->update_pmtu(dst, sk, NULL, pmtu);
+ dst->ops->update_pmtu(dst, sk, NULL, pmtu, true);
pf->to_sk_daddr(&addr, sk);
dst = sctp_transport_dst_check(t);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-16 15:09:49 +0300