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-rw-r--r--net/ipv4/ip_gre.c2
-rw-r--r--net/ipv4/route.c55
-rw-r--r--net/ipv4/tcp_input.c22
3 files changed, 44 insertions, 35 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 258c98d5fa79..ff4e7a4e33ed 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -818,7 +818,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
!ipv4_is_multicast(tunnel->parms.iph.daddr)) ||
rt6->rt6i_dst.plen == 128) {
rt6->rt6i_flags |= RTF_MODIFIED;
- skb_dst(skb)->metrics[RTAX_MTU-1] = mtu;
+ dst_metric_set(skb_dst(skb), RTAX_MTU, mtu);
}
}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 3843c2dfde82..26ac396eaa5e 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1686,11 +1686,14 @@ unsigned short ip_rt_frag_needed(struct net *net, struct iphdr *iph,
if (mtu < dst_mtu(&rth->dst)) {
dst_confirm(&rth->dst);
if (mtu < ip_rt_min_pmtu) {
+ u32 lock = dst_metric(&rth->dst,
+ RTAX_LOCK);
mtu = ip_rt_min_pmtu;
- rth->dst.metrics[RTAX_LOCK-1] |=
- (1 << RTAX_MTU);
+ lock |= (1 << RTAX_MTU);
+ dst_metric_set(&rth->dst, RTAX_LOCK,
+ lock);
}
- rth->dst.metrics[RTAX_MTU-1] = mtu;
+ dst_metric_set(&rth->dst, RTAX_MTU, mtu);
dst_set_expires(&rth->dst,
ip_rt_mtu_expires);
}
@@ -1708,10 +1711,11 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu)
if (dst_mtu(dst) > mtu && mtu >= 68 &&
!(dst_metric_locked(dst, RTAX_MTU))) {
if (mtu < ip_rt_min_pmtu) {
+ u32 lock = dst_metric(dst, RTAX_LOCK);
mtu = ip_rt_min_pmtu;
- dst->metrics[RTAX_LOCK-1] |= (1 << RTAX_MTU);
+ dst_metric_set(dst, RTAX_LOCK, lock | (1 << RTAX_MTU));
}
- dst->metrics[RTAX_MTU-1] = mtu;
+ dst_metric_set(dst, RTAX_MTU, mtu);
dst_set_expires(dst, ip_rt_mtu_expires);
call_netevent_notifiers(NETEVENT_PMTU_UPDATE, dst);
}
@@ -1796,36 +1800,37 @@ static void set_class_tag(struct rtable *rt, u32 tag)
static void rt_set_nexthop(struct rtable *rt, struct fib_result *res, u32 itag)
{
+ struct dst_entry *dst = &rt->dst;
struct fib_info *fi = res->fi;
if (fi) {
if (FIB_RES_GW(*res) &&
FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK)
rt->rt_gateway = FIB_RES_GW(*res);
- memcpy(rt->dst.metrics, fi->fib_metrics,
- sizeof(rt->dst.metrics));
+ dst_import_metrics(dst, fi->fib_metrics);
if (fi->fib_mtu == 0) {
- rt->dst.metrics[RTAX_MTU-1] = rt->dst.dev->mtu;
- if (dst_metric_locked(&rt->dst, RTAX_MTU) &&
+ dst_metric_set(dst, RTAX_MTU, dst->dev->mtu);
+ if (dst_metric_locked(dst, RTAX_MTU) &&
rt->rt_gateway != rt->rt_dst &&
- rt->dst.dev->mtu > 576)
- rt->dst.metrics[RTAX_MTU-1] = 576;
+ dst->dev->mtu > 576)
+ dst_metric_set(dst, RTAX_MTU, 576);
}
#ifdef CONFIG_NET_CLS_ROUTE
- rt->dst.tclassid = FIB_RES_NH(*res).nh_tclassid;
+ dst->tclassid = FIB_RES_NH(*res).nh_tclassid;
#endif
} else
- rt->dst.metrics[RTAX_MTU-1]= rt->dst.dev->mtu;
-
- if (dst_metric(&rt->dst, RTAX_HOPLIMIT) == 0)
- rt->dst.metrics[RTAX_HOPLIMIT-1] = sysctl_ip_default_ttl;
- if (dst_mtu(&rt->dst) > IP_MAX_MTU)
- rt->dst.metrics[RTAX_MTU-1] = IP_MAX_MTU;
- if (dst_metric(&rt->dst, RTAX_ADVMSS) == 0)
- rt->dst.metrics[RTAX_ADVMSS-1] = max_t(unsigned int, rt->dst.dev->mtu - 40,
- ip_rt_min_advmss);
- if (dst_metric(&rt->dst, RTAX_ADVMSS) > 65535 - 40)
- rt->dst.metrics[RTAX_ADVMSS-1] = 65535 - 40;
+ dst_metric_set(dst, RTAX_MTU, dst->dev->mtu);
+
+ if (dst_metric(dst, RTAX_HOPLIMIT) == 0)
+ dst_metric_set(dst, RTAX_HOPLIMIT, sysctl_ip_default_ttl);
+ if (dst_mtu(dst) > IP_MAX_MTU)
+ dst_metric_set(dst, RTAX_MTU, IP_MAX_MTU);
+ if (dst_metric(dst, RTAX_ADVMSS) == 0)
+ dst_metric_set(dst, RTAX_ADVMSS,
+ max_t(unsigned int, dst->dev->mtu - 40,
+ ip_rt_min_advmss));
+ if (dst_metric(dst, RTAX_ADVMSS) > 65535 - 40)
+ dst_metric_set(dst, RTAX_ADVMSS, 65535 - 40);
#ifdef CONFIG_NET_CLS_ROUTE
#ifdef CONFIG_IP_MULTIPLE_TABLES
@@ -2720,7 +2725,7 @@ static int ipv4_dst_blackhole(struct net *net, struct rtable **rp, struct flowi
new->__use = 1;
new->input = dst_discard;
new->output = dst_discard;
- memcpy(new->metrics, ort->dst.metrics, RTAX_MAX*sizeof(u32));
+ dst_copy_metrics(new, &ort->dst);
new->dev = ort->dst.dev;
if (new->dev)
@@ -2827,7 +2832,7 @@ static int rt_fill_info(struct net *net,
if (rt->rt_dst != rt->rt_gateway)
NLA_PUT_BE32(skb, RTA_GATEWAY, rt->rt_gateway);
- if (rtnetlink_put_metrics(skb, rt->dst.metrics) < 0)
+ if (rtnetlink_put_metrics(skb, dst_metrics_ptr(&rt->dst)) < 0)
goto nla_put_failure;
if (rt->fl.mark)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 6d8ab1c4efc3..824e8c8a17ad 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -734,7 +734,7 @@ void tcp_update_metrics(struct sock *sk)
* Reset our results.
*/
if (!(dst_metric_locked(dst, RTAX_RTT)))
- dst->metrics[RTAX_RTT - 1] = 0;
+ dst_metric_set(dst, RTAX_RTT, 0);
return;
}
@@ -776,34 +776,38 @@ void tcp_update_metrics(struct sock *sk)
if (dst_metric(dst, RTAX_SSTHRESH) &&
!dst_metric_locked(dst, RTAX_SSTHRESH) &&
(tp->snd_cwnd >> 1) > dst_metric(dst, RTAX_SSTHRESH))
- dst->metrics[RTAX_SSTHRESH-1] = tp->snd_cwnd >> 1;
+ dst_metric_set(dst, RTAX_SSTHRESH, tp->snd_cwnd >> 1);
if (!dst_metric_locked(dst, RTAX_CWND) &&
tp->snd_cwnd > dst_metric(dst, RTAX_CWND))
- dst->metrics[RTAX_CWND - 1] = tp->snd_cwnd;
+ dst_metric_set(dst, RTAX_CWND, tp->snd_cwnd);
} else if (tp->snd_cwnd > tp->snd_ssthresh &&
icsk->icsk_ca_state == TCP_CA_Open) {
/* Cong. avoidance phase, cwnd is reliable. */
if (!dst_metric_locked(dst, RTAX_SSTHRESH))
- dst->metrics[RTAX_SSTHRESH-1] =
- max(tp->snd_cwnd >> 1, tp->snd_ssthresh);
+ dst_metric_set(dst, RTAX_SSTHRESH,
+ max(tp->snd_cwnd >> 1, tp->snd_ssthresh));
if (!dst_metric_locked(dst, RTAX_CWND))
- dst->metrics[RTAX_CWND-1] = (dst_metric(dst, RTAX_CWND) + tp->snd_cwnd) >> 1;
+ dst_metric_set(dst, RTAX_CWND,
+ (dst_metric(dst, RTAX_CWND) +
+ tp->snd_cwnd) >> 1);
} else {
/* Else slow start did not finish, cwnd is non-sense,
ssthresh may be also invalid.
*/
if (!dst_metric_locked(dst, RTAX_CWND))
- dst->metrics[RTAX_CWND-1] = (dst_metric(dst, RTAX_CWND) + tp->snd_ssthresh) >> 1;
+ dst_metric_set(dst, RTAX_CWND,
+ (dst_metric(dst, RTAX_CWND) +
+ tp->snd_ssthresh) >> 1);
if (dst_metric(dst, RTAX_SSTHRESH) &&
!dst_metric_locked(dst, RTAX_SSTHRESH) &&
tp->snd_ssthresh > dst_metric(dst, RTAX_SSTHRESH))
- dst->metrics[RTAX_SSTHRESH-1] = tp->snd_ssthresh;
+ dst_metric_set(dst, RTAX_SSTHRESH, tp->snd_ssthresh);
}
if (!dst_metric_locked(dst, RTAX_REORDERING)) {
if (dst_metric(dst, RTAX_REORDERING) < tp->reordering &&
tp->reordering != sysctl_tcp_reordering)
- dst->metrics[RTAX_REORDERING-1] = tp->reordering;
+ dst_metric_set(dst, RTAX_REORDERING, tp->reordering);
}
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-04 20:54:34 +0100