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-rw-r--r--net/ipv6/addrconf.c8
-rw-r--r--net/ipv6/inet6_connection_sock.c2
-rw-r--r--net/ipv6/ip6_gre.c6
-rw-r--r--net/ipv6/ip6_tunnel.c4
-rw-r--r--net/ipv6/ip6_vti.c2
-rw-r--r--net/ipv6/route.c22
-rw-r--r--net/ipv6/sit.c2
-rw-r--r--net/ipv6/xfrm6_policy.c5
8 files changed, 30 insertions, 21 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 98d82305d6de..39d861d00377 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -5231,16 +5231,16 @@ static int inet6_rtm_valid_getaddr_req(struct sk_buff *skb,
return -EINVAL;
}
+ if (!netlink_strict_get_check(skb))
+ return nlmsg_parse_deprecated(nlh, sizeof(*ifm), tb, IFA_MAX,
+ ifa_ipv6_policy, extack);
+
ifm = nlmsg_data(nlh);
if (ifm->ifa_prefixlen || ifm->ifa_flags || ifm->ifa_scope) {
NL_SET_ERR_MSG_MOD(extack, "Invalid values in header for get address request");
return -EINVAL;
}
- if (!netlink_strict_get_check(skb))
- return nlmsg_parse_deprecated(nlh, sizeof(*ifm), tb, IFA_MAX,
- ifa_ipv6_policy, extack);
-
err = nlmsg_parse_deprecated_strict(nlh, sizeof(*ifm), tb, IFA_MAX,
ifa_ipv6_policy, extack);
if (err)
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index fe9cb8d1adca..e315526fa244 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -146,7 +146,7 @@ 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 923034c52ce4..ee968d980746 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1040,7 +1040,7 @@ 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, false);
err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
NEXTHDR_GRE);
@@ -2170,8 +2170,8 @@ static const struct nla_policy ip6gre_policy[IFLA_GRE_MAX + 1] = {
[IFLA_GRE_OFLAGS] = { .type = NLA_U16 },
[IFLA_GRE_IKEY] = { .type = NLA_U32 },
[IFLA_GRE_OKEY] = { .type = NLA_U32 },
- [IFLA_GRE_LOCAL] = { .len = FIELD_SIZEOF(struct ipv6hdr, saddr) },
- [IFLA_GRE_REMOTE] = { .len = FIELD_SIZEOF(struct ipv6hdr, daddr) },
+ [IFLA_GRE_LOCAL] = { .len = sizeof_field(struct ipv6hdr, saddr) },
+ [IFLA_GRE_REMOTE] = { .len = sizeof_field(struct ipv6hdr, daddr) },
[IFLA_GRE_TTL] = { .type = NLA_U8 },
[IFLA_GRE_ENCAP_LIMIT] = { .type = NLA_U8 },
[IFLA_GRE_FLOWINFO] = { .type = NLA_U32 },
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 754a484d35df..2f376dbc37d5 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -640,7 +640,7 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (rel_info > dst_mtu(skb_dst(skb2)))
goto out;
- skb_dst_update_pmtu(skb2, rel_info);
+ skb_dst_update_pmtu_no_confirm(skb2, rel_info);
}
icmp_send(skb2, rel_type, rel_code, htonl(rel_info));
@@ -1132,7 +1132,7 @@ route_lookup:
mtu = max(mtu, skb->protocol == htons(ETH_P_IPV6) ?
IPV6_MIN_MTU : IPV4_MIN_MTU);
- skb_dst_update_pmtu(skb, mtu);
+ skb_dst_update_pmtu_no_confirm(skb, mtu);
if (skb->len - t->tun_hlen - eth_hlen > mtu && !skb_is_gso(skb)) {
*pmtu = mtu;
err = -EMSGSIZE;
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 024db17386d2..6f08b760c2a7 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -479,7 +479,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
mtu = dst_mtu(dst);
if (skb->len > mtu) {
- skb_dst_update_pmtu(skb, mtu);
+ skb_dst_update_pmtu_no_confirm(skb, mtu);
if (skb->protocol == htons(ETH_P_IPV6)) {
if (mtu < IPV6_MIN_MTU)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index b59940416cb5..affb51c11a25 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -95,7 +95,8 @@ 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(const struct fib6_nh *nh, u32 fib6_flags, int oif,
@@ -264,7 +265,8 @@ 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)
{
}
@@ -2692,7 +2694,8 @@ 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;
@@ -2710,7 +2713,10 @@ 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;
@@ -2764,9 +2770,11 @@ out_unlock:
}
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,
@@ -2785,7 +2793,7 @@ 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/sit.c b/net/ipv6/sit.c
index b2ccbc473127..98954830c40b 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -944,7 +944,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
}
if (tunnel->parms.iph.daddr)
- skb_dst_update_pmtu(skb, mtu);
+ skb_dst_update_pmtu_no_confirm(skb, mtu);
if (skb->len > mtu && !skb_is_gso(skb)) {
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 699e0730ce8e..af7a4b8b1e9c 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -98,12 +98,13 @@ static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
}
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,
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-30 11:02:59 +0100