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-rw-r--r--net/ipv6/addrconf.c66
-rw-r--r--net/ipv6/addrconf_core.c11
-rw-r--r--net/ipv6/af_inet6.c4
-rw-r--r--net/ipv6/anycast.c17
-rw-r--r--net/ipv6/calipso.c3
-rw-r--r--net/ipv6/datagram.c2
-rw-r--r--net/ipv6/esp6_offload.c15
-rw-r--r--net/ipv6/inet6_connection_sock.c6
-rw-r--r--net/ipv6/ip6_fib.c9
-rw-r--r--net/ipv6/ip6_gre.c25
-rw-r--r--net/ipv6/ip6_output.c8
-rw-r--r--net/ipv6/ip6_tunnel.c8
-rw-r--r--net/ipv6/ip6_vti.c35
-rw-r--r--net/ipv6/ip6mr.c2
-rw-r--r--net/ipv6/ipv6_sockglue.c9
-rw-r--r--net/ipv6/mcast.c1
-rw-r--r--net/ipv6/raw.c2
-rw-r--r--net/ipv6/route.c31
-rw-r--r--net/ipv6/seg6_local.c4
-rw-r--r--net/ipv6/sit.c2
-rw-r--r--net/ipv6/syncookies.c2
-rw-r--r--net/ipv6/tcp_ipv6.c22
-rw-r--r--net/ipv6/udp.c17
-rw-r--r--net/ipv6/xfrm6_output.c2
-rw-r--r--net/ipv6/xfrm6_policy.c5
25 files changed, 206 insertions, 102 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index c94bc461e268..a18e52f9776c 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1226,11 +1226,13 @@ check_cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long *expires)
}
static void
-cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long expires, bool del_rt)
+cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long expires,
+ bool del_rt, bool del_peer)
{
struct fib6_info *f6i;
- f6i = addrconf_get_prefix_route(&ifp->addr, ifp->prefix_len,
+ f6i = addrconf_get_prefix_route(del_peer ? &ifp->peer_addr : &ifp->addr,
+ ifp->prefix_len,
ifp->idev->dev, 0, RTF_DEFAULT, true);
if (f6i) {
if (del_rt)
@@ -1293,7 +1295,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
if (action != CLEANUP_PREFIX_RT_NOP) {
cleanup_prefix_route(ifp, expires,
- action == CLEANUP_PREFIX_RT_DEL);
+ action == CLEANUP_PREFIX_RT_DEL, false);
}
/* clean up prefsrc entries */
@@ -3292,6 +3294,10 @@ static void addrconf_addr_gen(struct inet6_dev *idev, bool prefix_route)
if (netif_is_l3_master(idev->dev))
return;
+ /* no link local addresses on devices flagged as slaves */
+ if (idev->dev->flags & IFF_SLAVE)
+ return;
+
ipv6_addr_set(&addr, htonl(0xFE800000), 0, 0, 0);
switch (idev->cnf.addr_gen_mode) {
@@ -3343,6 +3349,10 @@ static void addrconf_dev_config(struct net_device *dev)
(dev->type != ARPHRD_NONE) &&
(dev->type != ARPHRD_RAWIP)) {
/* Alas, we support only Ethernet autoconfiguration. */
+ idev = __in6_dev_get(dev);
+ if (!IS_ERR_OR_NULL(idev) && dev->flags & IFF_UP &&
+ dev->flags & IFF_MULTICAST)
+ ipv6_mc_up(idev);
return;
}
@@ -4584,12 +4594,14 @@ inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh,
}
static int modify_prefix_route(struct inet6_ifaddr *ifp,
- unsigned long expires, u32 flags)
+ unsigned long expires, u32 flags,
+ bool modify_peer)
{
struct fib6_info *f6i;
u32 prio;
- f6i = addrconf_get_prefix_route(&ifp->addr, ifp->prefix_len,
+ f6i = addrconf_get_prefix_route(modify_peer ? &ifp->peer_addr : &ifp->addr,
+ ifp->prefix_len,
ifp->idev->dev, 0, RTF_DEFAULT, true);
if (!f6i)
return -ENOENT;
@@ -4600,7 +4612,8 @@ static int modify_prefix_route(struct inet6_ifaddr *ifp,
ip6_del_rt(dev_net(ifp->idev->dev), f6i);
/* add new one */
- addrconf_prefix_route(&ifp->addr, ifp->prefix_len,
+ addrconf_prefix_route(modify_peer ? &ifp->peer_addr : &ifp->addr,
+ ifp->prefix_len,
ifp->rt_priority, ifp->idev->dev,
expires, flags, GFP_KERNEL);
} else {
@@ -4622,6 +4635,7 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, struct ifa6_config *cfg)
unsigned long timeout;
bool was_managetempaddr;
bool had_prefixroute;
+ bool new_peer = false;
ASSERT_RTNL();
@@ -4653,6 +4667,13 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, struct ifa6_config *cfg)
cfg->preferred_lft = timeout;
}
+ if (cfg->peer_pfx &&
+ memcmp(&ifp->peer_addr, cfg->peer_pfx, sizeof(struct in6_addr))) {
+ if (!ipv6_addr_any(&ifp->peer_addr))
+ cleanup_prefix_route(ifp, expires, true, true);
+ new_peer = true;
+ }
+
spin_lock_bh(&ifp->lock);
was_managetempaddr = ifp->flags & IFA_F_MANAGETEMPADDR;
had_prefixroute = ifp->flags & IFA_F_PERMANENT &&
@@ -4668,6 +4689,9 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, struct ifa6_config *cfg)
if (cfg->rt_priority && cfg->rt_priority != ifp->rt_priority)
ifp->rt_priority = cfg->rt_priority;
+ if (new_peer)
+ ifp->peer_addr = *cfg->peer_pfx;
+
spin_unlock_bh(&ifp->lock);
if (!(ifp->flags&IFA_F_TENTATIVE))
ipv6_ifa_notify(0, ifp);
@@ -4676,7 +4700,7 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, struct ifa6_config *cfg)
int rc = -ENOENT;
if (had_prefixroute)
- rc = modify_prefix_route(ifp, expires, flags);
+ rc = modify_prefix_route(ifp, expires, flags, false);
/* prefix route could have been deleted; if so restore it */
if (rc == -ENOENT) {
@@ -4684,6 +4708,15 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, struct ifa6_config *cfg)
ifp->rt_priority, ifp->idev->dev,
expires, flags, GFP_KERNEL);
}
+
+ if (had_prefixroute && !ipv6_addr_any(&ifp->peer_addr))
+ rc = modify_prefix_route(ifp, expires, flags, true);
+
+ if (rc == -ENOENT && !ipv6_addr_any(&ifp->peer_addr)) {
+ addrconf_prefix_route(&ifp->peer_addr, ifp->prefix_len,
+ ifp->rt_priority, ifp->idev->dev,
+ expires, flags, GFP_KERNEL);
+ }
} else if (had_prefixroute) {
enum cleanup_prefix_rt_t action;
unsigned long rt_expires;
@@ -4694,7 +4727,7 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, struct ifa6_config *cfg)
if (action != CLEANUP_PREFIX_RT_NOP) {
cleanup_prefix_route(ifp, rt_expires,
- action == CLEANUP_PREFIX_RT_DEL);
+ action == CLEANUP_PREFIX_RT_DEL, false);
}
}
@@ -5229,16 +5262,16 @@ 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)
@@ -5717,6 +5750,9 @@ static int inet6_set_link_af(struct net_device *dev, const struct nlattr *nla)
struct nlattr *tb[IFLA_INET6_MAX + 1];
int err;
+ if (!idev)
+ return -EAFNOSUPPORT;
+
if (nla_parse_nested_deprecated(tb, IFLA_INET6_MAX, nla, NULL, NULL) < 0)
BUG();
@@ -5979,9 +6015,9 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
if (ifp->idev->cnf.forwarding)
addrconf_join_anycast(ifp);
if (!ipv6_addr_any(&ifp->peer_addr))
- addrconf_prefix_route(&ifp->peer_addr, 128, 0,
- ifp->idev->dev, 0, 0,
- GFP_ATOMIC);
+ addrconf_prefix_route(&ifp->peer_addr, 128,
+ ifp->rt_priority, ifp->idev->dev,
+ 0, 0, GFP_ATOMIC);
break;
case RTM_DELADDR:
if (ifp->idev->cnf.forwarding)
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
index 5b1246635e02..0ceb8943d648 100644
--- a/net/ipv6/addrconf_core.c
+++ b/net/ipv6/addrconf_core.c
@@ -128,11 +128,12 @@ int inet6addr_validator_notifier_call_chain(unsigned long val, void *v)
}
EXPORT_SYMBOL(inet6addr_validator_notifier_call_chain);
-static int eafnosupport_ipv6_dst_lookup(struct net *net, struct sock *u1,
- struct dst_entry **u2,
- struct flowi6 *u3)
+static struct dst_entry *eafnosupport_ipv6_dst_lookup_flow(struct net *net,
+ const struct sock *sk,
+ struct flowi6 *fl6,
+ const struct in6_addr *final_dst)
{
- return -EAFNOSUPPORT;
+ return ERR_PTR(-EAFNOSUPPORT);
}
static int eafnosupport_ipv6_route_input(struct sk_buff *skb)
@@ -184,7 +185,7 @@ static int eafnosupport_fib6_nh_init(struct net *net, struct fib6_nh *fib6_nh,
}
const struct ipv6_stub *ipv6_stub __read_mostly = &(struct ipv6_stub) {
- .ipv6_dst_lookup = eafnosupport_ipv6_dst_lookup,
+ .ipv6_dst_lookup_flow = eafnosupport_ipv6_dst_lookup_flow,
.ipv6_route_input = eafnosupport_ipv6_route_input,
.fib6_get_table = eafnosupport_fib6_get_table,
.fib6_table_lookup = eafnosupport_fib6_table_lookup,
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 5352708b7b2d..1c4bb0c73307 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -732,7 +732,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
&final);
rcu_read_unlock();
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
+ dst = ip6_dst_lookup_flow(sock_net(sk), sk, &fl6, final_p);
if (IS_ERR(dst)) {
sk->sk_route_caps = 0;
sk->sk_err_soft = -PTR_ERR(dst);
@@ -913,7 +913,7 @@ static int ipv6_route_input(struct sk_buff *skb)
static const struct ipv6_stub ipv6_stub_impl = {
.ipv6_sock_mc_join = ipv6_sock_mc_join,
.ipv6_sock_mc_drop = ipv6_sock_mc_drop,
- .ipv6_dst_lookup = ip6_dst_lookup,
+ .ipv6_dst_lookup_flow = ip6_dst_lookup_flow,
.ipv6_route_input = ipv6_route_input,
.fib6_get_table = fib6_get_table,
.fib6_table_lookup = fib6_table_lookup,
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index fed91ab7ec46..cf3a88a10ddd 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -183,7 +183,7 @@ int ipv6_sock_ac_drop(struct sock *sk, int ifindex, const struct in6_addr *addr)
return 0;
}
-void ipv6_sock_ac_close(struct sock *sk)
+void __ipv6_sock_ac_close(struct sock *sk)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct net_device *dev = NULL;
@@ -191,10 +191,7 @@ void ipv6_sock_ac_close(struct sock *sk)
struct net *net = sock_net(sk);
int prev_index;
- if (!np->ipv6_ac_list)
- return;
-
- rtnl_lock();
+ ASSERT_RTNL();
pac = np->ipv6_ac_list;
np->ipv6_ac_list = NULL;
@@ -211,6 +208,16 @@ void ipv6_sock_ac_close(struct sock *sk)
sock_kfree_s(sk, pac, sizeof(*pac));
pac = next;
}
+}
+
+void ipv6_sock_ac_close(struct sock *sk)
+{
+ struct ipv6_pinfo *np = inet6_sk(sk);
+
+ if (!np->ipv6_ac_list)
+ return;
+ rtnl_lock();
+ __ipv6_sock_ac_close(sk);
rtnl_unlock();
}
diff --git a/net/ipv6/calipso.c b/net/ipv6/calipso.c
index 221c81f85cbf..8d3f66c310db 100644
--- a/net/ipv6/calipso.c
+++ b/net/ipv6/calipso.c
@@ -1047,7 +1047,8 @@ static int calipso_opt_getattr(const unsigned char *calipso,
goto getattr_return;
}
- secattr->flags |= NETLBL_SECATTR_MLS_CAT;
+ if (secattr->attr.mls.cat)
+ secattr->flags |= NETLBL_SECATTR_MLS_CAT;
}
secattr->type = NETLBL_NLTYPE_CALIPSO;
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 694168e2302e..655500d88dd4 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -85,7 +85,7 @@ int ip6_datagram_dst_update(struct sock *sk, bool fix_sk_saddr)
final_p = fl6_update_dst(&fl6, opt, &final);
rcu_read_unlock();
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
+ dst = ip6_dst_lookup_flow(sock_net(sk), sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto out;
diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c
index d0d8528b294a..454fd8ac06d3 100644
--- a/net/ipv6/esp6_offload.c
+++ b/net/ipv6/esp6_offload.c
@@ -79,14 +79,14 @@ static struct sk_buff *esp6_gro_receive(struct list_head *head,
if (!x)
goto out_reset;
+ skb->mark = xfrm_smark_get(skb->mark, x);
+
sp->xvec[sp->len++] = x;
sp->olen++;
xo = xfrm_offload(skb);
- if (!xo) {
- xfrm_state_put(x);
+ if (!xo)
goto out_reset;
- }
}
xo->flags |= XFRM_GRO;
@@ -121,9 +121,16 @@ static void esp6_gso_encap(struct xfrm_state *x, struct sk_buff *skb)
struct ip_esp_hdr *esph;
struct ipv6hdr *iph = ipv6_hdr(skb);
struct xfrm_offload *xo = xfrm_offload(skb);
- int proto = iph->nexthdr;
+ u8 proto = iph->nexthdr;
skb_push(skb, -skb_network_offset(skb));
+
+ if (x->outer_mode.encap == XFRM_MODE_TRANSPORT) {
+ __be16 frag;
+
+ ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr), &proto, &frag);
+ }
+
esph = ip_esp_hdr(skb);
*skb_mac_header(skb) = IPPROTO_ESP;
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 4da24aa6c696..eb0ce481bf6e 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -48,7 +48,7 @@ struct dst_entry *inet6_csk_route_req(const struct sock *sk,
fl6->flowi6_uid = sk->sk_uid;
security_req_classify_flow(req, flowi6_to_flowi(fl6));
- dst = ip6_dst_lookup_flow(sk, fl6, final_p);
+ dst = ip6_dst_lookup_flow(sock_net(sk), sk, fl6, final_p);
if (IS_ERR(dst))
return NULL;
@@ -103,7 +103,7 @@ static struct dst_entry *inet6_csk_route_socket(struct sock *sk,
dst = __inet6_csk_dst_check(sk, np->dst_cookie);
if (!dst) {
- dst = ip6_dst_lookup_flow(sk, fl6, final_p);
+ dst = ip6_dst_lookup_flow(sock_net(sk), sk, fl6, final_p);
if (!IS_ERR(dst))
ip6_dst_store(sk, dst, NULL, NULL);
@@ -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_fib.c b/net/ipv6/ip6_fib.c
index 455f1292e479..82a6c4c4a6e2 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -611,7 +611,7 @@ static int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
if (arg.filter.table_id) {
tb = fib6_get_table(net, arg.filter.table_id);
if (!tb) {
- if (arg.filter.dump_all_families)
+ if (rtnl_msg_family(cb->nlh) != PF_INET6)
goto out;
NL_SET_ERR_MSG_MOD(cb->extack, "FIB table does not exist");
@@ -1004,8 +1004,7 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt,
found++;
break;
}
- if (rt_can_ecmp)
- fallback_ins = fallback_ins ?: ins;
+ fallback_ins = fallback_ins ?: ins;
goto next_iter;
}
@@ -1048,7 +1047,9 @@ next_iter:
}
if (fallback_ins && !found) {
- /* No ECMP-able route found, replace first non-ECMP one */
+ /* No matching route with same ecmp-able-ness found, replace
+ * first matching route
+ */
ins = fallback_ins;
iter = rcu_dereference_protected(*ins,
lockdep_is_held(&rt->fib6_table->tb6_lock));
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 4efc272c6027..8d48f7f9fdc6 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -127,6 +127,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
gre_proto == htons(ETH_P_ERSPAN2)) ?
ARPHRD_ETHER : ARPHRD_IP6GRE;
int score, cand_score = 4;
+ struct net_device *ndev;
for_each_ip_tunnel_rcu(t, ign->tunnels_r_l[h0 ^ h1]) {
if (!ipv6_addr_equal(local, &t->parms.laddr) ||
@@ -238,9 +239,9 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
if (t && t->dev->flags & IFF_UP)
return t;
- dev = ign->fb_tunnel_dev;
- if (dev && dev->flags & IFF_UP)
- return netdev_priv(dev);
+ ndev = READ_ONCE(ign->fb_tunnel_dev);
+ if (ndev && ndev->flags & IFF_UP)
+ return netdev_priv(ndev);
return NULL;
}
@@ -413,6 +414,8 @@ static void ip6gre_tunnel_uninit(struct net_device *dev)
ip6gre_tunnel_unlink_md(ign, t);
ip6gre_tunnel_unlink(ign, t);
+ if (ign->fb_tunnel_dev == dev)
+ WRITE_ONCE(ign->fb_tunnel_dev, NULL);
dst_cache_reset(&t->dst_cache);
dev_put(dev);
}
@@ -1040,7 +1043,7 @@ 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);
@@ -1466,7 +1469,6 @@ static int ip6gre_tunnel_init_common(struct net_device *dev)
dev->mtu -= 8;
if (tunnel->parms.collect_md) {
- dev->features |= NETIF_F_NETNS_LOCAL;
netif_keep_dst(dev);
}
ip6gre_tnl_init_features(dev);
@@ -1558,17 +1560,18 @@ static void ip6gre_destroy_tunnels(struct net *net, struct list_head *head)
static int __net_init ip6gre_init_net(struct net *net)
{
struct ip6gre_net *ign = net_generic(net, ip6gre_net_id);
+ struct net_device *ndev;
int err;
if (!net_has_fallback_tunnels(net))
return 0;
- ign->fb_tunnel_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6gre0",
- NET_NAME_UNKNOWN,
- ip6gre_tunnel_setup);
- if (!ign->fb_tunnel_dev) {
+ ndev = alloc_netdev(sizeof(struct ip6_tnl), "ip6gre0",
+ NET_NAME_UNKNOWN, ip6gre_tunnel_setup);
+ if (!ndev) {
err = -ENOMEM;
goto err_alloc_dev;
}
+ ign->fb_tunnel_dev = ndev;
dev_net_set(ign->fb_tunnel_dev, net);
/* FB netdevice is special: we have one, and only one per netns.
* Allowing to move it to another netns is clearly unsafe.
@@ -1588,7 +1591,7 @@ static int __net_init ip6gre_init_net(struct net *net)
return 0;
err_reg_dev:
- free_netdev(ign->fb_tunnel_dev);
+ free_netdev(ndev);
err_alloc_dev:
return err;
}
@@ -1894,7 +1897,6 @@ static void ip6gre_tap_setup(struct net_device *dev)
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;
- dev->features |= NETIF_F_NETNS_LOCAL;
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
netif_keep_dst(dev);
@@ -2196,7 +2198,6 @@ static void ip6erspan_tap_setup(struct net_device *dev)
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;
- dev->features |= NETIF_F_NETNS_LOCAL;
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
netif_keep_dst(dev);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 21efcd02f337..d3a0f577d9ec 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1081,19 +1081,19 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup);
* It returns a valid dst pointer on success, or a pointer encoded
* error code.
*/
-struct dst_entry *ip6_dst_lookup_flow(const struct sock *sk, struct flowi6 *fl6,
+struct dst_entry *ip6_dst_lookup_flow(struct net *net, const struct sock *sk, struct flowi6 *fl6,
const struct in6_addr *final_dst)
{
struct dst_entry *dst = NULL;
int err;
- err = ip6_dst_lookup_tail(sock_net(sk), sk, &dst, fl6);
+ err = ip6_dst_lookup_tail(net, sk, &dst, fl6);
if (err)
return ERR_PTR(err);
if (final_dst)
fl6->daddr = *final_dst;
- return xfrm_lookup_route(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0);
+ return xfrm_lookup_route(net, dst, flowi6_to_flowi(fl6), sk, 0);
}
EXPORT_SYMBOL_GPL(ip6_dst_lookup_flow);
@@ -1125,7 +1125,7 @@ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
if (dst)
return dst;
- dst = ip6_dst_lookup_flow(sk, fl6, final_dst);
+ dst = ip6_dst_lookup_flow(sock_net(sk), sk, fl6, final_dst);
if (connected && !IS_ERR(dst))
ip6_sk_dst_store_flow(sk, dst_clone(dst), fl6);
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index d10a9e40729f..a1134dcb75e1 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;
@@ -1877,10 +1877,8 @@ static int ip6_tnl_dev_init(struct net_device *dev)
if (err)
return err;
ip6_tnl_link_config(t);
- if (t->parms.collect_md) {
- dev->features |= NETIF_F_NETNS_LOCAL;
+ if (t->parms.collect_md)
netif_keep_dst(dev);
- }
return 0;
}
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 024db17386d2..cc6180e08a4f 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -311,7 +311,7 @@ static int vti6_rcv(struct sk_buff *skb)
if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
rcu_read_unlock();
- return 0;
+ goto discard;
}
ipv6h = ipv6_hdr(skb);
@@ -449,8 +449,35 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
int err = -1;
int mtu;
- if (!dst)
- goto tx_err_link_failure;
+ if (!dst) {
+ switch (skb->protocol) {
+ case htons(ETH_P_IP): {
+ struct rtable *rt;
+
+ fl->u.ip4.flowi4_oif = dev->ifindex;
+ fl->u.ip4.flowi4_flags |= FLOWI_FLAG_ANYSRC;
+ rt = __ip_route_output_key(dev_net(dev), &fl->u.ip4);
+ if (IS_ERR(rt))
+ goto tx_err_link_failure;
+ dst = &rt->dst;
+ skb_dst_set(skb, dst);
+ break;
+ }
+ case htons(ETH_P_IPV6):
+ fl->u.ip6.flowi6_oif = dev->ifindex;
+ fl->u.ip6.flowi6_flags |= FLOWI_FLAG_ANYSRC;
+ dst = ip6_route_output(dev_net(dev), NULL, &fl->u.ip6);
+ if (dst->error) {
+ dst_release(dst);
+ dst = NULL;
+ goto tx_err_link_failure;
+ }
+ skb_dst_set(skb, dst);
+ break;
+ default:
+ goto tx_err_link_failure;
+ }
+ }
dst_hold(dst);
dst = xfrm_lookup(t->net, dst, fl, NULL, 0);
@@ -479,7 +506,7 @@ 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/ip6mr.c b/net/ipv6/ip6mr.c
index e80d36c5073d..da7ab5ac07fb 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -2498,7 +2498,7 @@ static int ip6mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
mrt = ip6mr_get_table(sock_net(skb->sk), filter.table_id);
if (!mrt) {
- if (filter.dump_all_families)
+ if (rtnl_msg_family(cb->nlh) != RTNL_FAMILY_IP6MR)
return skb->len;
NL_SET_ERR_MSG_MOD(cb->extack, "MR table does not exist");
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 264c292e7dcc..0716282ea85d 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -183,8 +183,14 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
retv = -EBUSY;
break;
}
- } else if (sk->sk_protocol != IPPROTO_TCP)
+ } else if (sk->sk_protocol == IPPROTO_TCP) {
+ if (sk->sk_prot != &tcpv6_prot) {
+ retv = -EBUSY;
+ break;
+ }
+ } else {
break;
+ }
if (sk->sk_state != TCP_ESTABLISHED) {
retv = -ENOTCONN;
@@ -199,6 +205,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
fl6_free_socklist(sk);
__ipv6_sock_mc_close(sk);
+ __ipv6_sock_ac_close(sk);
/*
* Sock is moving from IPv6 to IPv4 (sk_prot), so
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index eaa4c2cc2fbb..c875c9b6edbe 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -2618,6 +2618,7 @@ void ipv6_mc_destroy_dev(struct inet6_dev *idev)
idev->mc_list = i->next;
write_unlock_bh(&idev->lock);
+ ip6_mc_clear_src(i);
ma_put(i);
write_lock_bh(&idev->lock);
}
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 70693bc7ad9d..f3cf6ef5ce9e 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -923,7 +923,7 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
fl6.flowlabel = ip6_make_flowinfo(ipc6.tclass, fl6.flowlabel);
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
+ dst = ip6_dst_lookup_flow(sock_net(sk), sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto out;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 1021c8d3c20b..a71b115e65fe 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)
{
}
@@ -2347,13 +2349,16 @@ 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;
- if (dst_metric_locked(dst, RTAX_MTU))
- return;
+ /* Note: do *NOT* check dst_metric_locked(dst, RTAX_MTU)
+ * IPv6 pmtu discovery isn't optional, so 'mtu lock' cannot disable it.
+ * [see also comment in rt6_mtu_change_route()]
+ */
if (iph) {
daddr = &iph->daddr;
@@ -2365,7 +2370,10 @@ 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;
@@ -2400,9 +2408,11 @@ 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,
@@ -2421,7 +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);
@@ -2979,7 +2989,7 @@ static bool fib6_is_reject(u32 flags, struct net_device *dev, int addr_type)
if ((flags & RTF_REJECT) ||
(dev && (dev->flags & IFF_LOOPBACK) &&
!(addr_type & IPV6_ADDR_LOOPBACK) &&
- !(flags & RTF_LOCAL)))
+ !(flags & (RTF_ANYCAST | RTF_LOCAL))))
return true;
return false;
@@ -4551,6 +4561,7 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
*/
cfg->fc_nlinfo.nlh->nlmsg_flags &= ~(NLM_F_EXCL |
NLM_F_REPLACE);
+ cfg->fc_nlinfo.nlh->nlmsg_flags |= NLM_F_CREATE;
nhn++;
}
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 9d4f75e0d33a..af1091451316 100644
--- a/net/ipv6/seg6_local.c
+++ b/net/ipv6/seg6_local.c
@@ -23,6 +23,7 @@
#include <net/addrconf.h>
#include <net/ip6_route.h>
#include <net/dst_cache.h>
+#include <net/ip_tunnels.h>
#ifdef CONFIG_IPV6_SEG6_HMAC
#include <net/seg6_hmac.h>
#endif
@@ -130,7 +131,8 @@ static bool decap_and_validate(struct sk_buff *skb, int proto)
skb_reset_network_header(skb);
skb_reset_transport_header(skb);
- skb->encapsulation = 0;
+ if (iptunnel_pull_offloads(skb))
+ return false;
return true;
}
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 80610899a323..91a89c662f1a 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -939,7 +939,7 @@ 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/syncookies.c b/net/ipv6/syncookies.c
index 16632e02e9b0..30915f6f31e3 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -235,7 +235,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
fl6.flowi6_uid = sk->sk_uid;
security_req_classify_flow(req, flowi6_to_flowi(&fl6));
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
+ dst = ip6_dst_lookup_flow(sock_net(sk), sk, &fl6, final_p);
if (IS_ERR(dst))
goto out_free;
}
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 7a14ea37d2df..70b36dc26f62 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -215,7 +215,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
!ipv6_addr_equal(&sk->sk_v6_daddr, &usin->sin6_addr)) {
tp->rx_opt.ts_recent = 0;
tp->rx_opt.ts_recent_stamp = 0;
- tp->write_seq = 0;
+ WRITE_ONCE(tp->write_seq, 0);
}
sk->sk_v6_daddr = usin->sin6_addr;
@@ -275,7 +275,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
+ dst = ip6_dst_lookup_flow(sock_net(sk), sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto failure;
@@ -311,10 +311,11 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
if (likely(!tp->repair)) {
if (!tp->write_seq)
- tp->write_seq = secure_tcpv6_seq(np->saddr.s6_addr32,
- sk->sk_v6_daddr.s6_addr32,
- inet->inet_sport,
- inet->inet_dport);
+ WRITE_ONCE(tp->write_seq,
+ secure_tcpv6_seq(np->saddr.s6_addr32,
+ sk->sk_v6_daddr.s6_addr32,
+ inet->inet_sport,
+ inet->inet_dport));
tp->tsoffset = secure_tcpv6_ts_off(sock_net(sk),
np->saddr.s6_addr32,
sk->sk_v6_daddr.s6_addr32);
@@ -406,7 +407,7 @@ static int tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
tp = tcp_sk(sk);
/* XXX (TFO) - tp->snd_una should be ISN (tcp_create_openreq_child() */
- fastopen = tp->fastopen_rsk;
+ fastopen = rcu_dereference(tp->fastopen_rsk);
snd_una = fastopen ? tcp_rsk(fastopen)->snt_isn : tp->snd_una;
if (sk->sk_state != TCP_LISTEN &&
!between(seq, snd_una, tp->snd_nxt)) {
@@ -896,7 +897,7 @@ static void tcp_v6_send_response(const struct sock *sk, struct sk_buff *skb, u32
* Underlying function will use this to retrieve the network
* namespace
*/
- dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL);
+ dst = ip6_dst_lookup_flow(sock_net(ctl_sk), ctl_sk, &fl6, NULL);
if (!IS_ERR(dst)) {
skb_dst_set(buff, dst);
ip6_xmit(ctl_sk, buff, &fl6, fl6.flowi6_mark, NULL, tclass);
@@ -1852,7 +1853,8 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
/* Because we don't lock the socket,
* we might find a transient negative value.
*/
- rx_queue = max_t(int, tp->rcv_nxt - tp->copied_seq, 0);
+ rx_queue = max_t(int, READ_ONCE(tp->rcv_nxt) -
+ READ_ONCE(tp->copied_seq), 0);
seq_printf(seq,
"%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
@@ -1863,7 +1865,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
dest->s6_addr32[0], dest->s6_addr32[1],
dest->s6_addr32[2], dest->s6_addr32[3], destp,
state,
- tp->write_seq - tp->snd_una,
+ READ_ONCE(tp->write_seq) - tp->snd_una,
rx_queue,
timer_active,
jiffies_delta_to_clock_t(timer_expires - jiffies),
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 9011a750f74f..e0ff2f60f53c 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -158,7 +158,7 @@ static struct sock *udp6_lib_lookup2(struct net *net,
int dif, int sdif, bool exact_dif,
struct udp_hslot *hslot2, struct sk_buff *skb)
{
- struct sock *sk, *result;
+ struct sock *sk, *result, *reuseport_result;
int score, badness;
u32 hash = 0;
@@ -168,17 +168,20 @@ static struct sock *udp6_lib_lookup2(struct net *net,
score = compute_score(sk, net, saddr, sport,
daddr, hnum, dif, sdif, exact_dif);
if (score > badness) {
+ reuseport_result = NULL;
+
if (sk->sk_reuseport &&
sk->sk_state != TCP_ESTABLISHED) {
hash = udp6_ehashfn(net, daddr, hnum,
saddr, sport);
- result = reuseport_select_sock(sk, hash, skb,
- sizeof(struct udphdr));
- if (result && !reuseport_has_conns(sk, false))
- return result;
+ reuseport_result = reuseport_select_sock(sk, hash, skb,
+ sizeof(struct udphdr));
+ if (reuseport_result && !reuseport_has_conns(sk, false))
+ return reuseport_result;
}
- result = sk;
+
+ result = reuseport_result ? : sk;
badness = score;
}
}
@@ -655,7 +658,7 @@ static int udpv6_queue_rcv_one_skb(struct sock *sk, struct sk_buff *skb)
/*
* UDP-Lite specific tests, ignored on UDP sockets (see net/ipv4/udp.c).
*/
- if ((is_udplite & UDPLITE_RECV_CC) && UDP_SKB_CB(skb)->partial_cov) {
+ if ((up->pcflag & UDPLITE_RECV_CC) && UDP_SKB_CB(skb)->partial_cov) {
if (up->pcrlen == 0) { /* full coverage was set */
net_dbg_ratelimited("UDPLITE6: partial coverage %d while full coverage %d requested\n",
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index eecac1b7148e..cf2a0ce15c1c 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -111,9 +111,7 @@ int xfrm6_output_finish(struct sock *sk, struct sk_buff *skb)
{
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
-#ifdef CONFIG_NETFILTER
IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
-#endif
return xfrm_output(sk, skb);
}
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 1.2.3-korg (git 2.39.0) at 2024-04-27 12:14:37 +0000