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-rw-r--r--net/ipv6/addrconf.c76
-rw-r--r--net/ipv6/ip6_output.c12
-rw-r--r--net/ipv6/ip6_tunnel.c9
-rw-r--r--net/ipv6/ipv6_sockglue.c4
-rw-r--r--net/ipv6/netfilter/Kconfig5
-rw-r--r--net/ipv6/netfilter/Makefile5
-rw-r--r--net/ipv6/netfilter/ip6_tables.c1
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c7
-rw-r--r--net/ipv6/proc.c4
-rw-r--r--net/ipv6/protocol.c8
-rw-r--r--net/ipv6/raw.c2
-rw-r--r--net/ipv6/reassembly.c2
-rw-r--r--net/ipv6/route.c15
-rw-r--r--net/ipv6/sit.c4
-rw-r--r--net/ipv6/tunnel6.c24
-rw-r--r--net/ipv6/udp.c3
-rw-r--r--net/ipv6/udplite.c1
-rw-r--r--net/ipv6/xfrm6_output.c16
18 files changed, 129 insertions, 69 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index ec7a91d9e865..848b35591042 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -98,7 +98,11 @@
#endif
#define INFINITY_LIFE_TIME 0xFFFFFFFF
-#define TIME_DELTA(a, b) ((unsigned long)((long)(a) - (long)(b)))
+
+static inline u32 cstamp_delta(unsigned long cstamp)
+{
+ return (cstamp - INITIAL_JIFFIES) * 100UL / HZ;
+}
#define ADDRCONF_TIMER_FUZZ_MINUS (HZ > 50 ? HZ/50 : 1)
#define ADDRCONF_TIMER_FUZZ (HZ / 4)
@@ -836,7 +840,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i
{
struct inet6_dev *idev = ifp->idev;
struct in6_addr addr, *tmpaddr;
- unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp;
+ unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp, age;
unsigned long regen_advance;
int tmp_plen;
int ret = 0;
@@ -886,12 +890,13 @@ retry:
goto out;
}
memcpy(&addr.s6_addr[8], idev->rndid, 8);
+ age = (jiffies - ifp->tstamp) / HZ;
tmp_valid_lft = min_t(__u32,
ifp->valid_lft,
- idev->cnf.temp_valid_lft);
+ idev->cnf.temp_valid_lft + age);
tmp_prefered_lft = min_t(__u32,
ifp->prefered_lft,
- idev->cnf.temp_prefered_lft -
+ idev->cnf.temp_prefered_lft + age -
idev->cnf.max_desync_factor);
tmp_plen = ifp->prefix_len;
max_addresses = idev->cnf.max_addresses;
@@ -1426,8 +1431,10 @@ void addrconf_dad_failure(struct inet6_ifaddr *ifp)
{
struct inet6_dev *idev = ifp->idev;
- if (addrconf_dad_end(ifp))
+ if (addrconf_dad_end(ifp)) {
+ in6_ifa_put(ifp);
return;
+ }
if (net_ratelimit())
printk(KERN_INFO "%s: IPv6 duplicate address %pI6c detected!\n",
@@ -2021,10 +2028,11 @@ ok:
ipv6_ifa_notify(0, ift);
}
- if (create && in6_dev->cnf.use_tempaddr > 0) {
+ if ((create || list_empty(&in6_dev->tempaddr_list)) && in6_dev->cnf.use_tempaddr > 0) {
/*
* When a new public address is created as described in [ADDRCONF],
- * also create a new temporary address.
+ * also create a new temporary address. Also create a temporary
+ * address if it's enabled but no temporary address currently exists.
*/
read_unlock_bh(&in6_dev->lock);
ipv6_create_tempaddr(ifp, NULL);
@@ -2661,7 +2669,9 @@ static int addrconf_ifdown(struct net_device *dev, int how)
ASSERT_RTNL();
- rt6_ifdown(net, dev);
+ /* Flush routes if device is being removed or it is not loopback */
+ if (how || !(dev->flags & IFF_LOOPBACK))
+ rt6_ifdown(net, dev);
neigh_ifdown(&nd_tbl, dev);
idev = __in6_dev_get(dev);
@@ -2736,10 +2746,6 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* Flag it for later restoration when link comes up */
ifa->flags |= IFA_F_TENTATIVE;
ifa->state = INET6_IFADDR_STATE_DAD;
-
- write_unlock_bh(&idev->lock);
-
- in6_ifa_hold(ifa);
} else {
list_del(&ifa->if_list);
@@ -2754,19 +2760,15 @@ static int addrconf_ifdown(struct net_device *dev, int how)
ifa->state = INET6_IFADDR_STATE_DEAD;
spin_unlock_bh(&ifa->state_lock);
- if (state == INET6_IFADDR_STATE_DEAD)
- goto put_ifa;
- }
-
- __ipv6_ifa_notify(RTM_DELADDR, ifa);
- if (ifa->state == INET6_IFADDR_STATE_DEAD)
- atomic_notifier_call_chain(&inet6addr_chain,
- NETDEV_DOWN, ifa);
-
-put_ifa:
- in6_ifa_put(ifa);
+ if (state != INET6_IFADDR_STATE_DEAD) {
+ __ipv6_ifa_notify(RTM_DELADDR, ifa);
+ atomic_notifier_call_chain(&inet6addr_chain,
+ NETDEV_DOWN, ifa);
+ }
- write_lock_bh(&idev->lock);
+ in6_ifa_put(ifa);
+ write_lock_bh(&idev->lock);
+ }
}
list_splice(&keep_list, &idev->addr_list);
@@ -3448,10 +3450,8 @@ static int put_cacheinfo(struct sk_buff *skb, unsigned long cstamp,
{
struct ifa_cacheinfo ci;
- ci.cstamp = (u32)(TIME_DELTA(cstamp, INITIAL_JIFFIES) / HZ * 100
- + TIME_DELTA(cstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
- ci.tstamp = (u32)(TIME_DELTA(tstamp, INITIAL_JIFFIES) / HZ * 100
- + TIME_DELTA(tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
+ ci.cstamp = cstamp_delta(cstamp);
+ ci.tstamp = cstamp_delta(tstamp);
ci.ifa_prefered = preferred;
ci.ifa_valid = valid;
@@ -3802,8 +3802,10 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
array[DEVCONF_AUTOCONF] = cnf->autoconf;
array[DEVCONF_DAD_TRANSMITS] = cnf->dad_transmits;
array[DEVCONF_RTR_SOLICITS] = cnf->rtr_solicits;
- array[DEVCONF_RTR_SOLICIT_INTERVAL] = cnf->rtr_solicit_interval;
- array[DEVCONF_RTR_SOLICIT_DELAY] = cnf->rtr_solicit_delay;
+ array[DEVCONF_RTR_SOLICIT_INTERVAL] =
+ jiffies_to_msecs(cnf->rtr_solicit_interval);
+ array[DEVCONF_RTR_SOLICIT_DELAY] =
+ jiffies_to_msecs(cnf->rtr_solicit_delay);
array[DEVCONF_FORCE_MLD_VERSION] = cnf->force_mld_version;
#ifdef CONFIG_IPV6_PRIVACY
array[DEVCONF_USE_TEMPADDR] = cnf->use_tempaddr;
@@ -3817,7 +3819,8 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo;
#ifdef CONFIG_IPV6_ROUTER_PREF
array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref;
- array[DEVCONF_RTR_PROBE_INTERVAL] = cnf->rtr_probe_interval;
+ array[DEVCONF_RTR_PROBE_INTERVAL] =
+ jiffies_to_msecs(cnf->rtr_probe_interval);
#ifdef CONFIG_IPV6_ROUTE_INFO
array[DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN] = cnf->accept_ra_rt_info_max_plen;
#endif
@@ -3933,10 +3936,9 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
NLA_PUT_U32(skb, IFLA_INET6_FLAGS, idev->if_flags);
ci.max_reasm_len = IPV6_MAXPLEN;
- ci.tstamp = (__u32)(TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) / HZ * 100
- + TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
- ci.reachable_time = idev->nd_parms->reachable_time;
- ci.retrans_time = idev->nd_parms->retrans_time;
+ ci.tstamp = cstamp_delta(idev->tstamp);
+ ci.reachable_time = jiffies_to_msecs(idev->nd_parms->reachable_time);
+ ci.retrans_time = jiffies_to_msecs(idev->nd_parms->retrans_time);
NLA_PUT(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci);
nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32));
@@ -4021,11 +4023,11 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
kfree_skb(skb);
goto errout;
}
- rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFINFO, NULL, GFP_ATOMIC);
return;
errout:
if (err < 0)
- rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err);
+ rtnl_set_sk_err(net, RTNLGRP_IPV6_IFINFO, err);
}
static inline size_t inet6_prefix_nlmsg_size(void)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 99157b4cd56e..94b5bf132b2e 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -56,7 +56,7 @@
#include <net/checksum.h>
#include <linux/mroute6.h>
-static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
+int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
int __ip6_local_out(struct sk_buff *skb)
{
@@ -145,14 +145,6 @@ static int ip6_finish_output2(struct sk_buff *skb)
return -EINVAL;
}
-static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
-{
- struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
-
- return (np && np->pmtudisc == IPV6_PMTUDISC_PROBE) ?
- skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
-}
-
static int ip6_finish_output(struct sk_buff *skb)
{
if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
@@ -601,7 +593,7 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
return offset;
}
-static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
+int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
{
struct sk_buff *frag;
struct rt6_info *rt = (struct rt6_info*)skb_dst(skb);
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index c2c0f89397b1..70e891a20fb9 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1175,6 +1175,8 @@ static void ip6_tnl_link_config(struct ip6_tnl *t)
sizeof (struct ipv6hdr);
dev->mtu = rt->rt6i_dev->mtu - sizeof (struct ipv6hdr);
+ if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
+ dev->mtu-=8;
if (dev->mtu < IPV6_MIN_MTU)
dev->mtu = IPV6_MIN_MTU;
@@ -1284,6 +1286,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
t = netdev_priv(dev);
ip6_tnl_unlink(ip6n, t);
+ synchronize_net();
err = ip6_tnl_change(t, &p);
ip6_tnl_link(ip6n, t);
netdev_state_change(dev);
@@ -1362,15 +1365,21 @@ static const struct net_device_ops ip6_tnl_netdev_ops = {
static void ip6_tnl_dev_setup(struct net_device *dev)
{
+ struct ip6_tnl *t;
+
dev->netdev_ops = &ip6_tnl_netdev_ops;
dev->destructor = ip6_dev_free;
dev->type = ARPHRD_TUNNEL6;
dev->hard_header_len = LL_MAX_HEADER + sizeof (struct ipv6hdr);
dev->mtu = ETH_DATA_LEN - sizeof (struct ipv6hdr);
+ t = netdev_priv(dev);
+ if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
+ dev->mtu-=8;
dev->flags |= IFF_NOARP;
dev->addr_len = sizeof(struct in6_addr);
dev->features |= NETIF_F_NETNS_LOCAL;
+ dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
}
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 0553867a317f..d1770e061c08 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -343,6 +343,10 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
break;
case IPV6_TRANSPARENT:
+ if (!capable(CAP_NET_ADMIN)) {
+ retv = -EPERM;
+ break;
+ }
if (optlen < sizeof(int))
goto e_inval;
/* we don't have a separate transparent bit for IPV6 we use the one in the IPv4 socket */
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 44d2eeac089b..448464844a25 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -5,10 +5,15 @@
menu "IPv6: Netfilter Configuration"
depends on INET && IPV6 && NETFILTER
+config NF_DEFRAG_IPV6
+ tristate
+ default n
+
config NF_CONNTRACK_IPV6
tristate "IPv6 connection tracking support"
depends on INET && IPV6 && NF_CONNTRACK
default m if NETFILTER_ADVANCED=n
+ select NF_DEFRAG_IPV6
---help---
Connection tracking keeps a record of what packets have passed
through your machine, in order to figure out how they are related
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index 3f8e4a3d83ce..0a432c9b0795 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -12,11 +12,14 @@ obj-$(CONFIG_IP6_NF_SECURITY) += ip6table_security.o
# objects for l3 independent conntrack
nf_conntrack_ipv6-objs := nf_conntrack_l3proto_ipv6.o nf_conntrack_proto_icmpv6.o
-nf_defrag_ipv6-objs := nf_defrag_ipv6_hooks.o nf_conntrack_reasm.o
# l3 independent conntrack
obj-$(CONFIG_NF_CONNTRACK_IPV6) += nf_conntrack_ipv6.o nf_defrag_ipv6.o
+# defrag
+nf_defrag_ipv6-objs := nf_defrag_ipv6_hooks.o nf_conntrack_reasm.o
+obj-$(CONFIG_NF_DEFRAG_IPV6) += nf_defrag_ipv6.o
+
# matches
obj-$(CONFIG_IP6_NF_MATCH_AH) += ip6t_ah.o
obj-$(CONFIG_IP6_NF_MATCH_EUI64) += ip6t_eui64.o
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 51df035897e7..455582384ece 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1137,6 +1137,7 @@ static int get_info(struct net *net, void __user *user,
private = &tmp;
}
#endif
+ memset(&info, 0, sizeof(info));
info.valid_hooks = t->valid_hooks;
memcpy(info.hook_entry, private->hook_entry,
sizeof(info.hook_entry));
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 489d71b844ac..79d43aa8fa8d 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -286,7 +286,7 @@ found:
/* Check for overlap with preceding fragment. */
if (prev &&
- (NFCT_FRAG6_CB(prev)->offset + prev->len) - offset > 0)
+ (NFCT_FRAG6_CB(prev)->offset + prev->len) > offset)
goto discard_fq;
/* Look for overlap with succeeding segment. */
@@ -625,21 +625,24 @@ int nf_ct_frag6_init(void)
inet_frags_init_net(&nf_init_frags);
inet_frags_init(&nf_frags);
+#ifdef CONFIG_SYSCTL
nf_ct_frag6_sysctl_header = register_sysctl_paths(nf_net_netfilter_sysctl_path,
nf_ct_frag6_sysctl_table);
if (!nf_ct_frag6_sysctl_header) {
inet_frags_fini(&nf_frags);
return -ENOMEM;
}
+#endif
return 0;
}
void nf_ct_frag6_cleanup(void)
{
+#ifdef CONFIG_SYSCTL
unregister_sysctl_table(nf_ct_frag6_sysctl_header);
nf_ct_frag6_sysctl_header = NULL;
-
+#endif
inet_frags_fini(&nf_frags);
nf_init_frags.low_thresh = 0;
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index d082eaeefa25..24b3558b8e67 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -126,6 +126,8 @@ static const struct snmp_mib snmp6_udp6_list[] = {
SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
+ SNMP_MIB_ITEM("Udp6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
+ SNMP_MIB_ITEM("Udp6SndbufErrors", UDP_MIB_SNDBUFERRORS),
SNMP_MIB_SENTINEL
};
@@ -134,6 +136,8 @@ static const struct snmp_mib snmp6_udplite6_list[] = {
SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
+ SNMP_MIB_ITEM("UdpLite6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
+ SNMP_MIB_ITEM("UdpLite6SndbufErrors", UDP_MIB_SNDBUFERRORS),
SNMP_MIB_SENTINEL
};
diff --git a/net/ipv6/protocol.c b/net/ipv6/protocol.c
index 9bb936ae2452..9a7978fdc02a 100644
--- a/net/ipv6/protocol.c
+++ b/net/ipv6/protocol.c
@@ -25,13 +25,14 @@
#include <linux/spinlock.h>
#include <net/protocol.h>
-const struct inet6_protocol *inet6_protos[MAX_INET_PROTOS] __read_mostly;
+const struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly;
int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol)
{
int hash = protocol & (MAX_INET_PROTOS - 1);
- return !cmpxchg(&inet6_protos[hash], NULL, prot) ? 0 : -1;
+ return !cmpxchg((const struct inet6_protocol **)&inet6_protos[hash],
+ NULL, prot) ? 0 : -1;
}
EXPORT_SYMBOL(inet6_add_protocol);
@@ -43,7 +44,8 @@ int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol
{
int ret, hash = protocol & (MAX_INET_PROTOS - 1);
- ret = (cmpxchg(&inet6_protos[hash], prot, NULL) == prot) ? 0 : -1;
+ ret = (cmpxchg((const struct inet6_protocol **)&inet6_protos[hash],
+ prot, NULL) == prot) ? 0 : -1;
synchronize_net();
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 45e6efb7f171..86c39526ba5e 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -373,7 +373,7 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
static inline int rawv6_rcv_skb(struct sock * sk, struct sk_buff * skb)
{
- if ((raw6_sk(sk)->checksum || sk->sk_filter) &&
+ if ((raw6_sk(sk)->checksum || rcu_dereference_raw(sk->sk_filter)) &&
skb_checksum_complete(skb)) {
atomic_inc(&sk->sk_drops);
kfree_skb(skb);
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index c7ba3149633f..0f2766453759 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -349,7 +349,7 @@ found:
/* Check for overlap with preceding fragment. */
if (prev &&
- (FRAG6_CB(prev)->offset + prev->len) - offset > 0)
+ (FRAG6_CB(prev)->offset + prev->len) > offset)
goto discard_fq;
/* Look for overlap with succeeding segment. */
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 25661f968f3f..7659d6f16e6b 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1565,11 +1565,16 @@ static void rt6_do_pmtu_disc(struct in6_addr *daddr, struct in6_addr *saddr,
{
struct rt6_info *rt, *nrt;
int allfrag = 0;
-
+again:
rt = rt6_lookup(net, daddr, saddr, ifindex, 0);
if (rt == NULL)
return;
+ if (rt6_check_expired(rt)) {
+ ip6_del_rt(rt);
+ goto again;
+ }
+
if (pmtu >= dst_mtu(&rt->dst))
goto out;
@@ -1945,8 +1950,12 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
struct neighbour *neigh;
- if (rt == NULL)
+ if (rt == NULL) {
+ if (net_ratelimit())
+ pr_warning("IPv6: Maximum number of routes reached,"
+ " consider increasing route/max_size.\n");
return ERR_PTR(-ENOMEM);
+ }
dev_hold(net->loopback_dev);
in6_dev_hold(idev);
@@ -2741,6 +2750,7 @@ static void __net_exit ip6_route_net_exit(struct net *net)
kfree(net->ipv6.ip6_prohibit_entry);
kfree(net->ipv6.ip6_blk_hole_entry);
#endif
+ dst_entries_destroy(&net->ipv6.ip6_dst_ops);
}
static struct pernet_operations ip6_route_net_ops = {
@@ -2832,5 +2842,6 @@ void ip6_route_cleanup(void)
xfrm6_fini();
fib6_gc_cleanup();
unregister_pernet_subsys(&ip6_route_net_ops);
+ dst_entries_destroy(&ip6_dst_blackhole_ops);
kmem_cache_destroy(ip6_dst_ops_template.kmem_cachep);
}
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 367a6cc584cc..8c4d00c7cd2b 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -606,8 +606,9 @@ static int ipip6_rcv(struct sk_buff *skb)
return 0;
}
- icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
+ /* no tunnel matched, let upstream know, ipsec may handle it */
rcu_read_unlock();
+ return 1;
out:
kfree_skb(skb);
return 0;
@@ -963,6 +964,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
}
t = netdev_priv(dev);
ipip6_tunnel_unlink(sitn, t);
+ synchronize_net();
t->parms.iph.saddr = p.iph.saddr;
t->parms.iph.daddr = p.iph.daddr;
memcpy(dev->dev_addr, &p.iph.saddr, 4);
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
index d9864725d0c6..4f3cec12aa85 100644
--- a/net/ipv6/tunnel6.c
+++ b/net/ipv6/tunnel6.c
@@ -30,23 +30,26 @@
#include <net/protocol.h>
#include <net/xfrm.h>
-static struct xfrm6_tunnel *tunnel6_handlers __read_mostly;
-static struct xfrm6_tunnel *tunnel46_handlers __read_mostly;
+static struct xfrm6_tunnel __rcu *tunnel6_handlers __read_mostly;
+static struct xfrm6_tunnel __rcu *tunnel46_handlers __read_mostly;
static DEFINE_MUTEX(tunnel6_mutex);
int xfrm6_tunnel_register(struct xfrm6_tunnel *handler, unsigned short family)
{
- struct xfrm6_tunnel **pprev;
+ struct xfrm6_tunnel __rcu **pprev;
+ struct xfrm6_tunnel *t;
int ret = -EEXIST;
int priority = handler->priority;
mutex_lock(&tunnel6_mutex);
for (pprev = (family == AF_INET6) ? &tunnel6_handlers : &tunnel46_handlers;
- *pprev; pprev = &(*pprev)->next) {
- if ((*pprev)->priority > priority)
+ (t = rcu_dereference_protected(*pprev,
+ lockdep_is_held(&tunnel6_mutex))) != NULL;
+ pprev = &t->next) {
+ if (t->priority > priority)
break;
- if ((*pprev)->priority == priority)
+ if (t->priority == priority)
goto err;
}
@@ -65,14 +68,17 @@ EXPORT_SYMBOL(xfrm6_tunnel_register);
int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler, unsigned short family)
{
- struct xfrm6_tunnel **pprev;
+ struct xfrm6_tunnel __rcu **pprev;
+ struct xfrm6_tunnel *t;
int ret = -ENOENT;
mutex_lock(&tunnel6_mutex);
for (pprev = (family == AF_INET6) ? &tunnel6_handlers : &tunnel46_handlers;
- *pprev; pprev = &(*pprev)->next) {
- if (*pprev == handler) {
+ (t = rcu_dereference_protected(*pprev,
+ lockdep_is_held(&tunnel6_mutex))) != NULL;
+ pprev = &t->next) {
+ if (t == handler) {
*pprev = handler->next;
ret = 0;
break;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index c84dad432114..cd6cb7c3e563 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -527,7 +527,7 @@ int udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
}
}
- if (sk->sk_filter) {
+ if (rcu_dereference_raw(sk->sk_filter)) {
if (udp_lib_checksum_complete(skb))
goto drop;
}
@@ -1477,6 +1477,7 @@ struct proto udpv6_prot = {
.compat_setsockopt = compat_udpv6_setsockopt,
.compat_getsockopt = compat_udpv6_getsockopt,
#endif
+ .clear_sk = sk_prot_clear_portaddr_nulls,
};
static struct inet_protosw udpv6_protosw = {
diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c
index 5f48fadc27f7..986c4de5292e 100644
--- a/net/ipv6/udplite.c
+++ b/net/ipv6/udplite.c
@@ -55,6 +55,7 @@ struct proto udplitev6_prot = {
.compat_setsockopt = compat_udpv6_setsockopt,
.compat_getsockopt = compat_udpv6_getsockopt,
#endif
+ .clear_sk = sk_prot_clear_portaddr_nulls,
};
static struct inet_protosw udplite6_protosw = {
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 6434bd5ce088..8e688b3de9ab 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -17,6 +17,7 @@
#include <linux/netfilter_ipv6.h>
#include <net/dst.h>
#include <net/ipv6.h>
+#include <net/ip6_route.h>
#include <net/xfrm.h>
int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
@@ -88,8 +89,21 @@ static int xfrm6_output_finish(struct sk_buff *skb)
return xfrm_output(skb);
}
+static int __xfrm6_output(struct sk_buff *skb)
+{
+ struct dst_entry *dst = skb_dst(skb);
+ struct xfrm_state *x = dst->xfrm;
+
+ if ((x && x->props.mode == XFRM_MODE_TUNNEL) &&
+ ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
+ dst_allfrag(skb_dst(skb)))) {
+ return ip6_fragment(skb, xfrm6_output_finish);
+ }
+ return xfrm6_output_finish(skb);
+}
+
int xfrm6_output(struct sk_buff *skb)
{
return NF_HOOK(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb, NULL,
- skb_dst(skb)->dev, xfrm6_output_finish);
+ skb_dst(skb)->dev, __xfrm6_output);
}
generated by cgit v1.2.3 (git 2.0.4) at 2025-09-04 16:10:00 +0000