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-rw-r--r--net/ipv6/addrconf.c17
-rw-r--r--net/ipv6/ip6_output.c36
-rw-r--r--net/ipv6/ip6_tunnel.c21
-rw-r--r--net/ipv6/ip6_vti.c25
-rw-r--r--net/ipv6/route.c4
-rw-r--r--net/ipv6/sit.c8
6 files changed, 65 insertions, 46 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 6c1634507ec..31f75ea9cb6 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1677,7 +1677,7 @@ void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr)
static void addrconf_join_anycast(struct inet6_ifaddr *ifp)
{
struct in6_addr addr;
- if (ifp->prefix_len == 127) /* RFC 6164 */
+ if (ifp->prefix_len >= 127) /* RFC 6164 */
return;
ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len);
if (ipv6_addr_any(&addr))
@@ -1688,7 +1688,7 @@ static void addrconf_join_anycast(struct inet6_ifaddr *ifp)
static void addrconf_leave_anycast(struct inet6_ifaddr *ifp)
{
struct in6_addr addr;
- if (ifp->prefix_len == 127) /* RFC 6164 */
+ if (ifp->prefix_len >= 127) /* RFC 6164 */
return;
ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len);
if (ipv6_addr_any(&addr))
@@ -3476,7 +3476,12 @@ restart:
&inet6_addr_lst[i], addr_lst) {
unsigned long age;
- if (ifp->flags & IFA_F_PERMANENT)
+ /* When setting preferred_lft to a value not zero or
+ * infinity, while valid_lft is infinity
+ * IFA_F_PERMANENT has a non-infinity life time.
+ */
+ if ((ifp->flags & IFA_F_PERMANENT) &&
+ (ifp->prefered_lft == INFINITY_LIFE_TIME))
continue;
spin_lock(&ifp->lock);
@@ -3501,7 +3506,8 @@ restart:
ifp->flags |= IFA_F_DEPRECATED;
}
- if (time_before(ifp->tstamp + ifp->valid_lft * HZ, next))
+ if ((ifp->valid_lft != INFINITY_LIFE_TIME) &&
+ (time_before(ifp->tstamp + ifp->valid_lft * HZ, next)))
next = ifp->tstamp + ifp->valid_lft * HZ;
spin_unlock(&ifp->lock);
@@ -3801,7 +3807,8 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
put_ifaddrmsg(nlh, ifa->prefix_len, ifa->flags, rt_scope(ifa->scope),
ifa->idev->dev->ifindex);
- if (!(ifa->flags&IFA_F_PERMANENT)) {
+ if (!((ifa->flags&IFA_F_PERMANENT) &&
+ (ifa->prefered_lft == INFINITY_LIFE_TIME))) {
preferred = ifa->prefered_lft;
valid = ifa->valid_lft;
if (preferred != INFINITY_LIFE_TIME) {
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 788c01a5359..d1de9560c42 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1188,11 +1188,35 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
fragheaderlen = sizeof(struct ipv6hdr) + rt->rt6i_nfheader_len +
(opt ? opt->opt_nflen : 0);
- maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen - sizeof(struct frag_hdr);
+ maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen -
+ sizeof(struct frag_hdr);
if (mtu <= sizeof(struct ipv6hdr) + IPV6_MAXPLEN) {
- if (cork->length + length > sizeof(struct ipv6hdr) + IPV6_MAXPLEN - fragheaderlen) {
- ipv6_local_error(sk, EMSGSIZE, fl6, mtu-exthdrlen);
+ unsigned int maxnonfragsize, headersize;
+
+ headersize = sizeof(struct ipv6hdr) +
+ (opt ? opt->tot_len : 0) +
+ (dst_allfrag(&rt->dst) ?
+ sizeof(struct frag_hdr) : 0) +
+ rt->rt6i_nfheader_len;
+
+ maxnonfragsize = (np->pmtudisc >= IPV6_PMTUDISC_DO) ?
+ mtu : sizeof(struct ipv6hdr) + IPV6_MAXPLEN;
+
+ /* dontfrag active */
+ if ((cork->length + length > mtu - headersize) && dontfrag &&
+ (sk->sk_protocol == IPPROTO_UDP ||
+ sk->sk_protocol == IPPROTO_RAW)) {
+ ipv6_local_rxpmtu(sk, fl6, mtu - headersize +
+ sizeof(struct ipv6hdr));
+ goto emsgsize;
+ }
+
+ if (cork->length + length > maxnonfragsize - headersize) {
+emsgsize:
+ ipv6_local_error(sk, EMSGSIZE, fl6,
+ mtu - headersize +
+ sizeof(struct ipv6hdr));
return -EMSGSIZE;
}
}
@@ -1217,12 +1241,6 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
* --yoshfuji
*/
- if ((length > mtu) && dontfrag && (sk->sk_protocol == IPPROTO_UDP ||
- sk->sk_protocol == IPPROTO_RAW)) {
- ipv6_local_rxpmtu(sk, fl6, mtu-exthdrlen);
- return -EMSGSIZE;
- }
-
skb = skb_peek_tail(&sk->sk_write_queue);
cork->length += length;
if (((length > mtu) ||
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 02894216a46..1e5e2404f1a 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -101,17 +101,26 @@ struct ip6_tnl_net {
static struct net_device_stats *ip6_get_stats(struct net_device *dev)
{
- struct pcpu_sw_netstats sum = { 0 };
+ struct pcpu_sw_netstats tmp, sum = { 0 };
int i;
for_each_possible_cpu(i) {
+ unsigned int start;
const struct pcpu_sw_netstats *tstats =
per_cpu_ptr(dev->tstats, i);
- sum.rx_packets += tstats->rx_packets;
- sum.rx_bytes += tstats->rx_bytes;
- sum.tx_packets += tstats->tx_packets;
- sum.tx_bytes += tstats->tx_bytes;
+ do {
+ start = u64_stats_fetch_begin_bh(&tstats->syncp);
+ tmp.rx_packets = tstats->rx_packets;
+ tmp.rx_bytes = tstats->rx_bytes;
+ tmp.tx_packets = tstats->tx_packets;
+ tmp.tx_bytes = tstats->tx_bytes;
+ } while (u64_stats_fetch_retry_bh(&tstats->syncp, start));
+
+ sum.rx_packets += tmp.rx_packets;
+ sum.rx_bytes += tmp.rx_bytes;
+ sum.tx_packets += tmp.tx_packets;
+ sum.tx_bytes += tmp.tx_bytes;
}
dev->stats.rx_packets = sum.rx_packets;
dev->stats.rx_bytes = sum.rx_bytes;
@@ -823,8 +832,10 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
}
tstats = this_cpu_ptr(t->dev->tstats);
+ u64_stats_update_begin(&tstats->syncp);
tstats->rx_packets++;
tstats->rx_bytes += skb->len;
+ u64_stats_update_end(&tstats->syncp);
netif_rx(skb);
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index da1d9e4d62c..b50acd5e75d 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -74,27 +74,6 @@ struct vti6_net {
struct ip6_tnl __rcu **tnls[2];
};
-static struct net_device_stats *vti6_get_stats(struct net_device *dev)
-{
- struct pcpu_sw_netstats sum = { 0 };
- int i;
-
- for_each_possible_cpu(i) {
- const struct pcpu_sw_netstats *tstats =
- per_cpu_ptr(dev->tstats, i);
-
- sum.rx_packets += tstats->rx_packets;
- sum.rx_bytes += tstats->rx_bytes;
- sum.tx_packets += tstats->tx_packets;
- sum.tx_bytes += tstats->tx_bytes;
- }
- dev->stats.rx_packets = sum.rx_packets;
- dev->stats.rx_bytes = sum.rx_bytes;
- dev->stats.tx_packets = sum.tx_packets;
- dev->stats.tx_bytes = sum.tx_bytes;
- return &dev->stats;
-}
-
#define for_each_vti6_tunnel_rcu(start) \
for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
@@ -331,8 +310,10 @@ static int vti6_rcv(struct sk_buff *skb)
}
tstats = this_cpu_ptr(t->dev->tstats);
+ u64_stats_update_begin(&tstats->syncp);
tstats->rx_packets++;
tstats->rx_bytes += skb->len;
+ u64_stats_update_end(&tstats->syncp);
skb->mark = 0;
secpath_reset(skb);
@@ -716,7 +697,7 @@ static const struct net_device_ops vti6_netdev_ops = {
.ndo_start_xmit = vti6_tnl_xmit,
.ndo_do_ioctl = vti6_ioctl,
.ndo_change_mtu = vti6_change_mtu,
- .ndo_get_stats = vti6_get_stats,
+ .ndo_get_stats64 = ip_tunnel_get_stats64,
};
/**
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 266f110cb6f..11dac21e658 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1923,9 +1923,7 @@ static struct rt6_info *ip6_rt_copy(struct rt6_info *ort,
else
rt->rt6i_gateway = *dest;
rt->rt6i_flags = ort->rt6i_flags;
- if ((ort->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) ==
- (RTF_DEFAULT | RTF_ADDRCONF))
- rt6_set_from(rt, ort);
+ rt6_set_from(rt, ort);
rt->rt6i_metric = 0;
#ifdef CONFIG_IPV6_SUBTREES
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 9937b261671..3dfbcf1dcb1 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -702,8 +702,10 @@ static int ipip6_rcv(struct sk_buff *skb)
}
tstats = this_cpu_ptr(tunnel->dev->tstats);
+ u64_stats_update_begin(&tstats->syncp);
tstats->rx_packets++;
tstats->rx_bytes += skb->len;
+ u64_stats_update_end(&tstats->syncp);
netif_rx(skb);
@@ -924,7 +926,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
if (tunnel->parms.iph.daddr && skb_dst(skb))
skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu);
- if (skb->len > mtu) {
+ if (skb->len > mtu && !skb_is_gso(skb)) {
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
ip_rt_put(rt);
goto tx_error;
@@ -966,8 +968,10 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
tos = INET_ECN_encapsulate(tos, ipv6_get_dsfield(iph6));
skb = iptunnel_handle_offloads(skb, false, SKB_GSO_SIT);
- if (IS_ERR(skb))
+ if (IS_ERR(skb)) {
+ ip_rt_put(rt);
goto out;
+ }
err = iptunnel_xmit(rt, skb, fl4.saddr, fl4.daddr, IPPROTO_IPV6, tos,
ttl, df, !net_eq(tunnel->net, dev_net(dev)));
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-28 09:21:26 +0000