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-rw-r--r--net/ipv6/addrconf.c3
-rw-r--r--net/ipv6/af_inet6.c19
-rw-r--r--net/ipv6/datagram.c15
-rw-r--r--net/ipv6/icmp.c134
-rw-r--r--net/ipv6/inet6_connection_sock.c25
-rw-r--r--net/ipv6/ip6_output.c90
-rw-r--r--net/ipv6/ip6_tunnel.c19
-rw-r--r--net/ipv6/ip6mr.c3
-rw-r--r--net/ipv6/mcast.c13
-rw-r--r--net/ipv6/mip6.c3
-rw-r--r--net/ipv6/ndisc.c12
-rw-r--r--net/ipv6/netfilter.c3
-rw-r--r--net/ipv6/netfilter/ip6_tables.c2
-rw-r--r--net/ipv6/netfilter/ip6t_LOG.c3
-rw-r--r--net/ipv6/netfilter/ip6t_REJECT.c3
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c3
-rw-r--r--net/ipv6/raw.c29
-rw-r--r--net/ipv6/route.c90
-rw-r--r--net/ipv6/sit.c31
-rw-r--r--net/ipv6/syncookies.c7
-rw-r--r--net/ipv6/tcp_ipv6.c63
-rw-r--r--net/ipv6/udp.c17
-rw-r--r--net/ipv6/xfrm6_policy.c11
-rw-r--r--net/ipv6/xfrm6_state.c6
24 files changed, 340 insertions, 264 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index fd6782e3a038..3daaf3c7703c 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -718,12 +718,9 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
struct inet6_ifaddr *ifa, *ifn;
struct inet6_dev *idev = ifp->idev;
int state;
- int hash;
int deleted = 0, onlink = 0;
unsigned long expires = jiffies;
- hash = ipv6_addr_hash(&ifp->addr);
-
spin_lock_bh(&ifp->state_lock);
state = ifp->state;
ifp->state = INET6_IFADDR_STATE_DEAD;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 978e80e2c4a8..a88b2e9d25f1 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -644,9 +644,8 @@ EXPORT_SYMBOL(inet6_unregister_protosw);
int inet6_sk_rebuild_header(struct sock *sk)
{
- int err;
- struct dst_entry *dst;
struct ipv6_pinfo *np = inet6_sk(sk);
+ struct dst_entry *dst;
dst = __sk_dst_check(sk, np->dst_cookie);
@@ -668,17 +667,11 @@ int inet6_sk_rebuild_header(struct sock *sk)
final_p = fl6_update_dst(&fl, np->opt, &final);
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err) {
+ dst = ip6_dst_lookup_flow(sk, &fl, final_p, false);
+ if (IS_ERR(dst)) {
sk->sk_route_caps = 0;
- return err;
- }
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- if ((err = xfrm_lookup(sock_net(sk), &dst, &fl, sk, 0)) < 0) {
- sk->sk_err_soft = -err;
- return err;
+ sk->sk_err_soft = -PTR_ERR(dst);
+ return PTR_ERR(dst);
}
__ip6_dst_store(sk, dst, NULL, NULL);
@@ -772,7 +765,7 @@ out:
return err;
}
-static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
+static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, u32 features)
{
struct sk_buff *segs = ERR_PTR(-EINVAL);
struct ipv6hdr *ipv6h;
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 320bdb877eed..be3a781c0085 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -162,18 +162,11 @@ ipv4_connected:
opt = flowlabel ? flowlabel->opt : np->opt;
final_p = fl6_update_dst(&fl, opt, &final);
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err)
+ dst = ip6_dst_lookup_flow(sk, &fl, final_p, true);
+ err = 0;
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
goto out;
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- err = __xfrm_lookup(sock_net(sk), &dst, &fl, sk, XFRM_LOOKUP_WAIT);
- if (err < 0) {
- if (err == -EREMOTE)
- err = ip6_dst_blackhole(sk, &dst, &fl);
- if (err < 0)
- goto out;
}
/* source address lookup done in ip6_dst_lookup */
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 03e62f94ff8e..55665956b3a8 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -157,20 +157,20 @@ static int is_ineligible(struct sk_buff *skb)
/*
* Check the ICMP output rate limit
*/
-static inline int icmpv6_xrlim_allow(struct sock *sk, u8 type,
- struct flowi *fl)
+static inline bool icmpv6_xrlim_allow(struct sock *sk, u8 type,
+ struct flowi *fl)
{
struct dst_entry *dst;
struct net *net = sock_net(sk);
- int res = 0;
+ bool res = false;
/* Informational messages are not limited. */
if (type & ICMPV6_INFOMSG_MASK)
- return 1;
+ return true;
/* Do not limit pmtu discovery, it would break it. */
if (type == ICMPV6_PKT_TOOBIG)
- return 1;
+ return true;
/*
* Look up the output route.
@@ -182,7 +182,7 @@ static inline int icmpv6_xrlim_allow(struct sock *sk, u8 type,
IP6_INC_STATS(net, ip6_dst_idev(dst),
IPSTATS_MIB_OUTNOROUTES);
} else if (dst->dev && (dst->dev->flags&IFF_LOOPBACK)) {
- res = 1;
+ res = true;
} else {
struct rt6_info *rt = (struct rt6_info *)dst;
int tmo = net->ipv6.sysctl.icmpv6_time;
@@ -191,7 +191,9 @@ static inline int icmpv6_xrlim_allow(struct sock *sk, u8 type,
if (rt->rt6i_dst.plen < 128)
tmo >>= ((128 - rt->rt6i_dst.plen)>>5);
- res = xrlim_allow(dst, tmo);
+ if (!rt->rt6i_peer)
+ rt6_bind_peer(rt, 1);
+ res = inet_peer_xrlim_allow(rt->rt6i_peer, tmo);
}
dst_release(dst);
return res;
@@ -298,6 +300,68 @@ static void mip6_addr_swap(struct sk_buff *skb)
static inline void mip6_addr_swap(struct sk_buff *skb) {}
#endif
+static struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *skb,
+ struct sock *sk, struct flowi *fl)
+{
+ struct dst_entry *dst, *dst2;
+ struct flowi fl2;
+ int err;
+
+ err = ip6_dst_lookup(sk, &dst, fl);
+ if (err)
+ return ERR_PTR(err);
+
+ /*
+ * We won't send icmp if the destination is known
+ * anycast.
+ */
+ if (((struct rt6_info *)dst)->rt6i_flags & RTF_ANYCAST) {
+ LIMIT_NETDEBUG(KERN_DEBUG "icmpv6_send: acast source\n");
+ dst_release(dst);
+ return ERR_PTR(-EINVAL);
+ }
+
+ /* No need to clone since we're just using its address. */
+ dst2 = dst;
+
+ dst = xfrm_lookup(net, dst, fl, sk, 0);
+ if (!IS_ERR(dst)) {
+ if (dst != dst2)
+ return dst;
+ } else {
+ if (PTR_ERR(dst) == -EPERM)
+ dst = NULL;
+ else
+ return dst;
+ }
+
+ err = xfrm_decode_session_reverse(skb, &fl2, AF_INET6);
+ if (err)
+ goto relookup_failed;
+
+ err = ip6_dst_lookup(sk, &dst2, &fl2);
+ if (err)
+ goto relookup_failed;
+
+ dst2 = xfrm_lookup(net, dst2, &fl2, sk, XFRM_LOOKUP_ICMP);
+ if (!IS_ERR(dst2)) {
+ dst_release(dst);
+ dst = dst2;
+ } else {
+ err = PTR_ERR(dst2);
+ if (err == -EPERM) {
+ dst_release(dst);
+ return dst2;
+ } else
+ goto relookup_failed;
+ }
+
+relookup_failed:
+ if (dst)
+ return dst;
+ return ERR_PTR(err);
+}
+
/*
* Send an ICMP message in response to a packet in error
*/
@@ -310,10 +374,8 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
struct ipv6_pinfo *np;
struct in6_addr *saddr = NULL;
struct dst_entry *dst;
- struct dst_entry *dst2;
struct icmp6hdr tmp_hdr;
struct flowi fl;
- struct flowi fl2;
struct icmpv6_msg msg;
int iif = 0;
int addr_type = 0;
@@ -406,57 +468,10 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
if (!fl.oif && ipv6_addr_is_multicast(&fl.fl6_dst))
fl.oif = np->mcast_oif;
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err)
- goto out;
-
- /*
- * We won't send icmp if the destination is known
- * anycast.
- */
- if (((struct rt6_info *)dst)->rt6i_flags & RTF_ANYCAST) {
- LIMIT_NETDEBUG(KERN_DEBUG "icmpv6_send: acast source\n");
- goto out_dst_release;
- }
-
- /* No need to clone since we're just using its address. */
- dst2 = dst;
-
- err = xfrm_lookup(net, &dst, &fl, sk, 0);
- switch (err) {
- case 0:
- if (dst != dst2)
- goto route_done;
- break;
- case -EPERM:
- dst = NULL;
- break;
- default:
+ dst = icmpv6_route_lookup(net, skb, sk, &fl);
+ if (IS_ERR(dst))
goto out;
- }
-
- if (xfrm_decode_session_reverse(skb, &fl2, AF_INET6))
- goto relookup_failed;
-
- if (ip6_dst_lookup(sk, &dst2, &fl2))
- goto relookup_failed;
-
- err = xfrm_lookup(net, &dst2, &fl2, sk, XFRM_LOOKUP_ICMP);
- switch (err) {
- case 0:
- dst_release(dst);
- dst = dst2;
- break;
- case -EPERM:
- goto out_dst_release;
- default:
-relookup_failed:
- if (!dst)
- goto out;
- break;
- }
-route_done:
if (ipv6_addr_is_multicast(&fl.fl6_dst))
hlimit = np->mcast_hops;
else
@@ -543,7 +558,8 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
err = ip6_dst_lookup(sk, &dst, &fl);
if (err)
goto out;
- if ((err = xfrm_lookup(net, &dst, &fl, sk, 0)) < 0)
+ dst = xfrm_lookup(net, dst, &fl, sk, 0);
+ if (IS_ERR(dst))
goto out;
if (ipv6_addr_is_multicast(&fl.fl6_dst))
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index d144e629d2b4..d687e1397333 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -74,13 +74,8 @@ struct dst_entry *inet6_csk_route_req(struct sock *sk,
fl.fl_ip_sport = inet_rsk(req)->loc_port;
security_req_classify_flow(req, &fl);
- if (ip6_dst_lookup(sk, &dst, &fl))
- return NULL;
-
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- if ((xfrm_lookup(sock_net(sk), &dst, &fl, sk, 0)) < 0)
+ dst = ip6_dst_lookup_flow(sk, &fl, final_p, false);
+ if (IS_ERR(dst))
return NULL;
return dst;
@@ -234,21 +229,13 @@ int inet6_csk_xmit(struct sk_buff *skb)
dst = __inet6_csk_dst_check(sk, np->dst_cookie);
if (dst == NULL) {
- int err = ip6_dst_lookup(sk, &dst, &fl);
-
- if (err) {
- sk->sk_err_soft = -err;
- kfree_skb(skb);
- return err;
- }
-
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
+ dst = ip6_dst_lookup_flow(sk, &fl, final_p, false);
- if ((err = xfrm_lookup(sock_net(sk), &dst, &fl, sk, 0)) < 0) {
+ if (IS_ERR(dst)) {
+ sk->sk_err_soft = -PTR_ERR(dst);
sk->sk_route_caps = 0;
kfree_skb(skb);
- return err;
+ return PTR_ERR(dst);
}
__inet6_csk_dst_store(sk, dst, NULL, NULL);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 5f8d242be3f3..adaffaf84555 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -274,13 +274,10 @@ int ip6_nd_hdr(struct sock *sk, struct sk_buff *skb, struct net_device *dev,
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct ipv6hdr *hdr;
- int totlen;
skb->protocol = htons(ETH_P_IPV6);
skb->dev = dev;
- totlen = len + sizeof(struct ipv6hdr);
-
skb_reset_network_header(skb);
skb_put(skb, sizeof(struct ipv6hdr));
hdr = ipv6_hdr(skb);
@@ -479,10 +476,13 @@ int ip6_forward(struct sk_buff *skb)
else
target = &hdr->daddr;
+ if (!rt->rt6i_peer)
+ rt6_bind_peer(rt, 1);
+
/* Limit redirects both by destination (here)
and by source (inside ndisc_send_redirect)
*/
- if (xrlim_allow(dst, 1*HZ))
+ if (inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ))
ndisc_send_redirect(skb, n, target);
} else {
int addrtype = ipv6_addr_type(&hdr->saddr);
@@ -1002,29 +1002,71 @@ int ip6_dst_lookup(struct sock *sk, struct dst_entry **dst, struct flowi *fl)
EXPORT_SYMBOL_GPL(ip6_dst_lookup);
/**
- * ip6_sk_dst_lookup - perform socket cached route lookup on flow
+ * ip6_dst_lookup_flow - perform route lookup on flow with ipsec
+ * @sk: socket which provides route info
+ * @fl: flow to lookup
+ * @final_dst: final destination address for ipsec lookup
+ * @can_sleep: we are in a sleepable context
+ *
+ * This function performs a route lookup on the given flow.
+ *
+ * It returns a valid dst pointer on success, or a pointer encoded
+ * error code.
+ */
+struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi *fl,
+ const struct in6_addr *final_dst,
+ bool can_sleep)
+{
+ struct dst_entry *dst = NULL;
+ int err;
+
+ err = ip6_dst_lookup_tail(sk, &dst, fl);
+ if (err)
+ return ERR_PTR(err);
+ if (final_dst)
+ ipv6_addr_copy(&fl->fl6_dst, final_dst);
+ if (can_sleep)
+ fl->flags |= FLOWI_FLAG_CAN_SLEEP;
+
+ return xfrm_lookup(sock_net(sk), dst, fl, sk, 0);
+}
+EXPORT_SYMBOL_GPL(ip6_dst_lookup_flow);
+
+/**
+ * ip6_sk_dst_lookup_flow - perform socket cached route lookup on flow
* @sk: socket which provides the dst cache and route info
- * @dst: pointer to dst_entry * for result
* @fl: flow to lookup
+ * @final_dst: final destination address for ipsec lookup
+ * @can_sleep: we are in a sleepable context
*
* This function performs a route lookup on the given flow with the
* possibility of using the cached route in the socket if it is valid.
* It will take the socket dst lock when operating on the dst cache.
* As a result, this function can only be used in process context.
*
- * It returns zero on success, or a standard errno code on error.
+ * It returns a valid dst pointer on success, or a pointer encoded
+ * error code.
*/
-int ip6_sk_dst_lookup(struct sock *sk, struct dst_entry **dst, struct flowi *fl)
+struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi *fl,
+ const struct in6_addr *final_dst,
+ bool can_sleep)
{
- *dst = NULL;
- if (sk) {
- *dst = sk_dst_check(sk, inet6_sk(sk)->dst_cookie);
- *dst = ip6_sk_dst_check(sk, *dst, fl);
- }
+ struct dst_entry *dst = sk_dst_check(sk, inet6_sk(sk)->dst_cookie);
+ int err;
- return ip6_dst_lookup_tail(sk, dst, fl);
+ dst = ip6_sk_dst_check(sk, dst, fl);
+
+ err = ip6_dst_lookup_tail(sk, &dst, fl);
+ if (err)
+ return ERR_PTR(err);
+ if (final_dst)
+ ipv6_addr_copy(&fl->fl6_dst, final_dst);
+ if (can_sleep)
+ fl->flags |= FLOWI_FLAG_CAN_SLEEP;
+
+ return xfrm_lookup(sock_net(sk), dst, fl, sk, 0);
}
-EXPORT_SYMBOL_GPL(ip6_sk_dst_lookup);
+EXPORT_SYMBOL_GPL(ip6_sk_dst_lookup_flow);
static inline int ip6_ufo_append_data(struct sock *sk,
int getfrag(void *from, char *to, int offset, int len,
@@ -1061,7 +1103,6 @@ static inline int ip6_ufo_append_data(struct sock *sk,
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum = 0;
- sk->sk_sndmsg_off = 0;
}
err = skb_append_datato_frags(sk,skb, getfrag, from,
@@ -1118,6 +1159,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
int err;
int offset = 0;
int csummode = CHECKSUM_NONE;
+ __u8 tx_flags = 0;
if (flags&MSG_PROBE)
return 0;
@@ -1202,6 +1244,13 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
}
}
+ /* For UDP, check if TX timestamp is enabled */
+ if (sk->sk_type == SOCK_DGRAM) {
+ err = sock_tx_timestamp(sk, &tx_flags);
+ if (err)
+ goto error;
+ }
+
/*
* Let's try using as much space as possible.
* Use MTU if total length of the message fits into the MTU.
@@ -1306,6 +1355,12 @@ alloc_new_skb:
sk->sk_allocation);
if (unlikely(skb == NULL))
err = -ENOBUFS;
+ else {
+ /* Only the initial fragment
+ * is time stamped.
+ */
+ tx_flags = 0;
+ }
}
if (skb == NULL)
goto error;
@@ -1317,6 +1372,9 @@ alloc_new_skb:
/* reserve for fragmentation */
skb_reserve(skb, hh_len+sizeof(struct frag_hdr));
+ if (sk->sk_type == SOCK_DGRAM)
+ skb_shinfo(skb)->tx_flags = tx_flags;
+
/*
* Find where to start putting bytes
*/
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 4f4483e697bd..02730ef26b0f 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -581,7 +581,8 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
fl.fl4_dst = eiph->saddr;
fl.fl4_tos = RT_TOS(eiph->tos);
fl.proto = IPPROTO_IPIP;
- if (ip_route_output_key(dev_net(skb->dev), &rt, &fl))
+ rt = ip_route_output_key(dev_net(skb->dev), &fl);
+ if (IS_ERR(rt))
goto out;
skb2->dev = rt->dst.dev;
@@ -593,12 +594,14 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
fl.fl4_dst = eiph->daddr;
fl.fl4_src = eiph->saddr;
fl.fl4_tos = eiph->tos;
- if (ip_route_output_key(dev_net(skb->dev), &rt, &fl) ||
+ rt = ip_route_output_key(dev_net(skb->dev), &fl);
+ if (IS_ERR(rt) ||
rt->dst.dev->type != ARPHRD_TUNNEL) {
- ip_rt_put(rt);
+ if (!IS_ERR(rt))
+ ip_rt_put(rt);
goto out;
}
- skb_dst_set(skb2, (struct dst_entry *)rt);
+ skb_dst_set(skb2, &rt->dst);
} else {
ip_rt_put(rt);
if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos,
@@ -903,8 +906,14 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
else {
dst = ip6_route_output(net, NULL, fl);
- if (dst->error || xfrm_lookup(net, &dst, fl, NULL, 0) < 0)
+ if (dst->error)
goto tx_err_link_failure;
+ dst = xfrm_lookup(net, dst, fl, NULL, 0);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
+ dst = NULL;
+ goto tx_err_link_failure;
+ }
}
tdev = dst->dev;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 0e1d53bcf1e0..618f67ccda31 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1039,7 +1039,6 @@ static void ip6mr_cache_resolve(struct net *net, struct mr6_table *mrt,
while((skb = __skb_dequeue(&uc->mfc_un.unres.unresolved))) {
if (ipv6_hdr(skb)->version == 0) {
- int err;
struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct ipv6hdr));
if (__ip6mr_fill_mroute(mrt, skb, c, NLMSG_DATA(nlh)) > 0) {
@@ -1050,7 +1049,7 @@ static void ip6mr_cache_resolve(struct net *net, struct mr6_table *mrt,
skb_trim(skb, nlh->nlmsg_len);
((struct nlmsgerr *)NLMSG_DATA(nlh))->error = -EMSGSIZE;
}
- err = rtnl_unicast(skb, net, NETLINK_CB(skb).pid);
+ rtnl_unicast(skb, net, NETLINK_CB(skb).pid);
} else
ip6_mr_forward(net, mrt, skb, c);
}
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 49f986d626a0..7b27d08ee281 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1429,7 +1429,12 @@ static void mld_sendpack(struct sk_buff *skb)
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
- err = xfrm_lookup(net, &dst, &fl, NULL, 0);
+ dst = xfrm_lookup(net, dst, &fl, NULL, 0);
+ err = 0;
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
+ dst = NULL;
+ }
skb_dst_set(skb, dst);
if (err)
goto err_out;
@@ -1796,9 +1801,11 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
- err = xfrm_lookup(net, &dst, &fl, NULL, 0);
- if (err)
+ dst = xfrm_lookup(net, dst, &fl, NULL, 0);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
goto err_out;
+ }
skb_dst_set(skb, dst);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index d6e9599d0705..f3e3ca938a54 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -203,7 +203,8 @@ static inline int mip6_report_rl_allow(struct timeval *stamp,
return allow;
}
-static int mip6_destopt_reject(struct xfrm_state *x, struct sk_buff *skb, struct flowi *fl)
+static int mip6_destopt_reject(struct xfrm_state *x, struct sk_buff *skb,
+ const struct flowi *fl)
{
struct net *net = xs_net(x);
struct inet6_skb_parm *opt = (struct inet6_skb_parm *)skb->cb;
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 2342545a5ee9..9360d3be94f0 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -529,8 +529,8 @@ void ndisc_send_skb(struct sk_buff *skb,
return;
}
- err = xfrm_lookup(net, &dst, &fl, NULL, 0);
- if (err < 0) {
+ dst = xfrm_lookup(net, dst, &fl, NULL, 0);
+ if (IS_ERR(dst)) {
kfree_skb(skb);
return;
}
@@ -1542,8 +1542,8 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
if (dst == NULL)
return;
- err = xfrm_lookup(net, &dst, &fl, NULL, 0);
- if (err)
+ dst = xfrm_lookup(net, dst, &fl, NULL, 0);
+ if (IS_ERR(dst))
return;
rt = (struct rt6_info *) dst;
@@ -1553,7 +1553,9 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
"ICMPv6 Redirect: destination is not a neighbour.\n");
goto release;
}
- if (!xrlim_allow(dst, 1*HZ))
+ if (!rt->rt6i_peer)
+ rt6_bind_peer(rt, 1);
+ if (inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ))
goto release;
if (dev->addr_len) {
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 35915e8617f0..8d74116ae27d 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -39,7 +39,8 @@ int ip6_route_me_harder(struct sk_buff *skb)
if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
xfrm_decode_session(skb, &fl, AF_INET6) == 0) {
skb_dst_set(skb, NULL);
- if (xfrm_lookup(net, &dst, &fl, skb->sk, 0))
+ dst = xfrm_lookup(net, dst, &fl, skb->sk, 0);
+ if (IS_ERR(dst))
return -1;
skb_dst_set(skb, dst);
}
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 7d227c644f72..47b7b8df7fac 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1076,6 +1076,7 @@ static int compat_table_info(const struct xt_table_info *info,
memcpy(newinfo, info, offsetof(struct xt_table_info, entries));
newinfo->initial_entries = 0;
loc_cpu_entry = info->entries[raw_smp_processor_id()];
+ xt_compat_init_offsets(AF_INET6, info->number);
xt_entry_foreach(iter, loc_cpu_entry, info->size) {
ret = compat_calc_entry(iter, info, loc_cpu_entry, newinfo);
if (ret != 0)
@@ -1679,6 +1680,7 @@ translate_compat_table(struct net *net,
duprintf("translate_compat_table: size %u\n", info->size);
j = 0;
xt_compat_lock(AF_INET6);
+ xt_compat_init_offsets(AF_INET6, number);
/* Walk through entries, checking offsets. */
xt_entry_foreach(iter0, entry0, total_size) {
ret = check_compat_entry_size_and_hooks(iter0, info, &size,
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index de338037a736..e6af8d72f26b 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -452,8 +452,7 @@ ip6t_log_packet(u_int8_t pf,
in ? in->name : "",
out ? out->name : "");
- /* MAC logging for input path only. */
- if (in && !out)
+ if (in != NULL)
dump_mac_header(m, loginfo, skb);
dump_packet(m, loginfo, skb, skb_network_offset(skb), 1);
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index bf998feac14e..91f6a61cefab 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -101,7 +101,8 @@ static void send_reset(struct net *net, struct sk_buff *oldskb)
dst_release(dst);
return;
}
- if (xfrm_lookup(net, &dst, &fl, NULL, 0))
+ dst = xfrm_lookup(net, dst, &fl, NULL, 0);
+ if (IS_ERR(dst))
return;
hh_len = (dst->dev->hard_header_len + 15)&~15;
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 79d43aa8fa8d..085727263812 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -45,6 +45,7 @@
#include <linux/netfilter_ipv6.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <net/netfilter/ipv6/nf_defrag_ipv6.h>
struct nf_ct_frag6_skb_cb
@@ -73,7 +74,7 @@ static struct inet_frags nf_frags;
static struct netns_frags nf_init_frags;
#ifdef CONFIG_SYSCTL
-struct ctl_table nf_ct_frag6_sysctl_table[] = {
+static struct ctl_table nf_ct_frag6_sysctl_table[] = {
{
.procname = "nf_conntrack_frag6_timeout",
.data = &nf_init_frags.timeout,
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index c5b0915d106b..dc29b07caf42 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -124,18 +124,18 @@ static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb)
}
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
-static int (*mh_filter)(struct sock *sock, struct sk_buff *skb);
+typedef int mh_filter_t(struct sock *sock, struct sk_buff *skb);
-int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
- struct sk_buff *skb))
+static mh_filter_t __rcu *mh_filter __read_mostly;
+
+int rawv6_mh_filter_register(mh_filter_t filter)
{
rcu_assign_pointer(mh_filter, filter);
return 0;
}
EXPORT_SYMBOL(rawv6_mh_filter_register);
-int rawv6_mh_filter_unregister(int (*filter)(struct sock *sock,
- struct sk_buff *skb))
+int rawv6_mh_filter_unregister(mh_filter_t filter)
{
rcu_assign_pointer(mh_filter, NULL);
synchronize_rcu();
@@ -193,10 +193,10 @@ static int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
* policy is placed in rawv6_rcv() because it is
* required for each socket.
*/
- int (*filter)(struct sock *sock, struct sk_buff *skb);
+ mh_filter_t *filter;
filter = rcu_dereference(mh_filter);
- filtered = filter ? filter(sk, skb) : 0;
+ filtered = filter ? (*filter)(sk, skb) : 0;
break;
}
#endif
@@ -856,20 +856,11 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
fl.oif = np->mcast_oif;
security_sk_classify_flow(sk, &fl);
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err)
+ dst = ip6_dst_lookup_flow(sk, &fl, final_p, true);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
goto out;
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- err = __xfrm_lookup(sock_net(sk), &dst, &fl, sk, XFRM_LOOKUP_WAIT);
- if (err < 0) {
- if (err == -EREMOTE)
- err = ip6_dst_blackhole(sk, &dst, &fl);
- if (err < 0)
- goto out;
}
-
if (hlimit < 0) {
if (ipv6_addr_is_multicast(&fl.fl6_dst))
hlimit = np->mcast_hops;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 904312e25a3c..d55d00c2a824 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -97,6 +97,36 @@ static struct rt6_info *rt6_get_route_info(struct net *net,
struct in6_addr *gwaddr, int ifindex);
#endif
+static u32 *ipv6_cow_metrics(struct dst_entry *dst, unsigned long old)
+{
+ struct rt6_info *rt = (struct rt6_info *) dst;
+ struct inet_peer *peer;
+ u32 *p = NULL;
+
+ if (!rt->rt6i_peer)
+ rt6_bind_peer(rt, 1);
+
+ peer = rt->rt6i_peer;
+ if (peer) {
+ u32 *old_p = __DST_METRICS_PTR(old);
+ unsigned long prev, new;
+
+ p = peer->metrics;
+ if (inet_metrics_new(peer))
+ memcpy(p, old_p, sizeof(u32) * RTAX_MAX);
+
+ new = (unsigned long) p;
+ prev = cmpxchg(&dst->_metrics, old, new);
+
+ if (prev != old) {
+ p = __DST_METRICS_PTR(prev);
+ if (prev & DST_METRICS_READ_ONLY)
+ p = NULL;
+ }
+ }
+ return p;
+}
+
static struct dst_ops ip6_dst_ops_template = {
.family = AF_INET6,
.protocol = cpu_to_be16(ETH_P_IPV6),
@@ -105,6 +135,7 @@ static struct dst_ops ip6_dst_ops_template = {
.check = ip6_dst_check,
.default_advmss = ip6_default_advmss,
.default_mtu = ip6_default_mtu,
+ .cow_metrics = ipv6_cow_metrics,
.destroy = ip6_dst_destroy,
.ifdown = ip6_dst_ifdown,
.negative_advice = ip6_negative_advice,
@@ -132,6 +163,10 @@ static struct dst_ops ip6_dst_blackhole_ops = {
.update_pmtu = ip6_rt_blackhole_update_pmtu,
};
+static const u32 ip6_template_metrics[RTAX_MAX] = {
+ [RTAX_HOPLIMIT - 1] = 255,
+};
+
static struct rt6_info ip6_null_entry_template = {
.dst = {
.__refcnt = ATOMIC_INIT(1),
@@ -187,7 +222,7 @@ static struct rt6_info ip6_blk_hole_entry_template = {
/* allocate dst with ip6_dst_ops */
static inline struct rt6_info *ip6_dst_alloc(struct dst_ops *ops)
{
- return (struct rt6_info *)dst_alloc(ops);
+ return (struct rt6_info *)dst_alloc(ops, 0);
}
static void ip6_dst_destroy(struct dst_entry *dst)
@@ -206,6 +241,13 @@ static void ip6_dst_destroy(struct dst_entry *dst)
}
}
+static atomic_t __rt6_peer_genid = ATOMIC_INIT(0);
+
+static u32 rt6_peer_genid(void)
+{
+ return atomic_read(&__rt6_peer_genid);
+}
+
void rt6_bind_peer(struct rt6_info *rt, int create)
{
struct inet_peer *peer;
@@ -213,6 +255,8 @@ void rt6_bind_peer(struct rt6_info *rt, int create)
peer = inet_getpeer_v6(&rt->rt6i_dst.addr, create);
if (peer && cmpxchg(&rt->rt6i_peer, NULL, peer) != NULL)
inet_putpeer(peer);
+ else
+ rt->rt6i_peer_genid = rt6_peer_genid();
}
static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
@@ -826,17 +870,15 @@ struct dst_entry * ip6_route_output(struct net *net, struct sock *sk,
EXPORT_SYMBOL(ip6_route_output);
-int ip6_dst_blackhole(struct sock *sk, struct dst_entry **dstp, struct flowi *fl)
+struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_orig)
{
- struct rt6_info *ort = (struct rt6_info *) *dstp;
- struct rt6_info *rt = (struct rt6_info *)
- dst_alloc(&ip6_dst_blackhole_ops);
+ struct rt6_info *rt = dst_alloc(&ip6_dst_blackhole_ops, 1);
+ struct rt6_info *ort = (struct rt6_info *) dst_orig;
struct dst_entry *new = NULL;
if (rt) {
new = &rt->dst;
- atomic_set(&new->__refcnt, 1);
new->__use = 1;
new->input = dst_discard;
new->output = dst_discard;
@@ -862,11 +904,9 @@ int ip6_dst_blackhole(struct sock *sk, struct dst_entry **dstp, struct flowi *fl
dst_free(new);
}
- dst_release(*dstp);
- *dstp = new;
- return new ? 0 : -ENOMEM;
+ dst_release(dst_orig);
+ return new ? new : ERR_PTR(-ENOMEM);
}
-EXPORT_SYMBOL_GPL(ip6_dst_blackhole);
/*
* Destination cache support functions
@@ -878,9 +918,14 @@ static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie)
rt = (struct rt6_info *) dst;
- if (rt->rt6i_node && (rt->rt6i_node->fn_sernum == cookie))
+ if (rt->rt6i_node && (rt->rt6i_node->fn_sernum == cookie)) {
+ if (rt->rt6i_peer_genid != rt6_peer_genid()) {
+ if (!rt->rt6i_peer)
+ rt6_bind_peer(rt, 0);
+ rt->rt6i_peer_genid = rt6_peer_genid();
+ }
return dst;
-
+ }
return NULL;
}
@@ -931,7 +976,6 @@ static void ip6_rt_update_pmtu(struct dst_entry *dst, u32 mtu)
dst_metric_set(dst, RTAX_FEATURES, features);
}
dst_metric_set(dst, RTAX_MTU, mtu);
- call_netevent_notifiers(NETEVENT_PMTU_UPDATE, dst);
}
}
@@ -1028,11 +1072,9 @@ out:
int icmp6_dst_gc(void)
{
- struct dst_entry *dst, *next, **pprev;
+ struct dst_entry *dst, **pprev;
int more = 0;
- next = NULL;
-
spin_lock_bh(&icmp6_dst_lock);
pprev = &icmp6_dst_gc_list;
@@ -1980,12 +2022,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
if (IS_ERR(neigh)) {
dst_free(&rt->dst);
- /* We are casting this because that is the return
- * value type. But an errno encoded pointer is the
- * same regardless of the underlying pointer type,
- * and that's what we are returning. So this is OK.
- */
- return (struct rt6_info *) neigh;
+ return ERR_CAST(neigh);
}
rt->rt6i_nexthop = neigh;
@@ -2687,7 +2724,8 @@ static int __net_init ip6_route_net_init(struct net *net)
net->ipv6.ip6_null_entry->dst.path =
(struct dst_entry *)net->ipv6.ip6_null_entry;
net->ipv6.ip6_null_entry->dst.ops = &net->ipv6.ip6_dst_ops;
- dst_metric_set(&net->ipv6.ip6_null_entry->dst, RTAX_HOPLIMIT, 255);
+ dst_init_metrics(&net->ipv6.ip6_null_entry->dst,
+ ip6_template_metrics, true);
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
net->ipv6.ip6_prohibit_entry = kmemdup(&ip6_prohibit_entry_template,
@@ -2698,7 +2736,8 @@ static int __net_init ip6_route_net_init(struct net *net)
net->ipv6.ip6_prohibit_entry->dst.path =
(struct dst_entry *)net->ipv6.ip6_prohibit_entry;
net->ipv6.ip6_prohibit_entry->dst.ops = &net->ipv6.ip6_dst_ops;
- dst_metric_set(&net->ipv6.ip6_prohibit_entry->dst, RTAX_HOPLIMIT, 255);
+ dst_init_metrics(&net->ipv6.ip6_prohibit_entry->dst,
+ ip6_template_metrics, true);
net->ipv6.ip6_blk_hole_entry = kmemdup(&ip6_blk_hole_entry_template,
sizeof(*net->ipv6.ip6_blk_hole_entry),
@@ -2708,7 +2747,8 @@ static int __net_init ip6_route_net_init(struct net *net)
net->ipv6.ip6_blk_hole_entry->dst.path =
(struct dst_entry *)net->ipv6.ip6_blk_hole_entry;
net->ipv6.ip6_blk_hole_entry->dst.ops = &net->ipv6.ip6_dst_ops;
- dst_metric_set(&net->ipv6.ip6_blk_hole_entry->dst, RTAX_HOPLIMIT, 255);
+ dst_init_metrics(&net->ipv6.ip6_blk_hole_entry->dst,
+ ip6_template_metrics, true);
#endif
net->ipv6.sysctl.flush_delay = 0;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 8ce38f10a547..b8c8adbd7cf6 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -412,7 +412,7 @@ static void prl_list_destroy_rcu(struct rcu_head *head)
p = container_of(head, struct ip_tunnel_prl_entry, rcu_head);
do {
- n = p->next;
+ n = rcu_dereference_protected(p->next, 1);
kfree(p);
p = n;
} while (p);
@@ -421,15 +421,17 @@ static void prl_list_destroy_rcu(struct rcu_head *head)
static int
ipip6_tunnel_del_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
{
- struct ip_tunnel_prl_entry *x, **p;
+ struct ip_tunnel_prl_entry *x;
+ struct ip_tunnel_prl_entry __rcu **p;
int err = 0;
ASSERT_RTNL();
if (a && a->addr != htonl(INADDR_ANY)) {
- for (p = &t->prl; *p; p = &(*p)->next) {
- if ((*p)->addr == a->addr) {
- x = *p;
+ for (p = &t->prl;
+ (x = rtnl_dereference(*p)) != NULL;
+ p = &x->next) {
+ if (x->addr == a->addr) {
*p = x->next;
call_rcu(&x->rcu_head, prl_entry_destroy_rcu);
t->prl_count--;
@@ -438,9 +440,9 @@ ipip6_tunnel_del_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
}
err = -ENXIO;
} else {
- if (t->prl) {
+ x = rtnl_dereference(t->prl);
+ if (x) {
t->prl_count = 0;
- x = t->prl;
call_rcu(&x->rcu_head, prl_list_destroy_rcu);
t->prl = NULL;
}
@@ -736,7 +738,8 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
.fl4_tos = RT_TOS(tos),
.oif = tunnel->parms.link,
.proto = IPPROTO_IPV6 };
- if (ip_route_output_key(dev_net(dev), &rt, &fl)) {
+ rt = ip_route_output_key(dev_net(dev), &fl);
+ if (IS_ERR(rt)) {
dev->stats.tx_carrier_errors++;
goto tx_error_icmp;
}
@@ -860,8 +863,9 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
.fl4_tos = RT_TOS(iph->tos),
.oif = tunnel->parms.link,
.proto = IPPROTO_IPV6 };
- struct rtable *rt;
- if (!ip_route_output_key(dev_net(dev), &rt, &fl)) {
+ struct rtable *rt = ip_route_output_key(dev_net(dev), &fl);
+
+ if (!IS_ERR(rt)) {
tdev = rt->dst.dev;
ip_rt_put(rt);
}
@@ -1179,7 +1183,7 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
if (!dev->tstats)
return -ENOMEM;
dev_hold(dev);
- sitn->tunnels_wc[0] = tunnel;
+ rcu_assign_pointer(sitn->tunnels_wc[0], tunnel);
return 0;
}
@@ -1196,11 +1200,12 @@ static void __net_exit sit_destroy_tunnels(struct sit_net *sitn, struct list_hea
for (prio = 1; prio < 4; prio++) {
int h;
for (h = 0; h < HASH_SIZE; h++) {
- struct ip_tunnel *t = sitn->tunnels[prio][h];
+ struct ip_tunnel *t;
+ t = rtnl_dereference(sitn->tunnels[prio][h]);
while (t != NULL) {
unregister_netdevice_queue(t->dev, head);
- t = t->next;
+ t = rtnl_dereference(t->next);
}
}
}
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 09fd34f0dbf2..0b4cf350631b 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -243,12 +243,9 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
fl.fl_ip_dport = inet_rsk(req)->rmt_port;
fl.fl_ip_sport = inet_sk(sk)->inet_sport;
security_req_classify_flow(req, &fl);
- if (ip6_dst_lookup(sk, &dst, &fl))
- goto out_free;
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
- if ((xfrm_lookup(sock_net(sk), &dst, &fl, sk, 0)) < 0)
+ dst = ip6_dst_lookup_flow(sk, &fl, final_p, false);
+ if (IS_ERR(dst))
goto out_free;
}
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 20aa95e37359..e59a31c48baf 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -255,18 +255,10 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
security_sk_classify_flow(sk, &fl);
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err)
+ dst = ip6_dst_lookup_flow(sk, &fl, final_p, true);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
goto failure;
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- err = __xfrm_lookup(sock_net(sk), &dst, &fl, sk, XFRM_LOOKUP_WAIT);
- if (err < 0) {
- if (err == -EREMOTE)
- err = ip6_dst_blackhole(sk, &dst, &fl);
- if (err < 0)
- goto failure;
}
if (saddr == NULL) {
@@ -385,7 +377,7 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
np = inet6_sk(sk);
if (type == ICMPV6_PKT_TOOBIG) {
- struct dst_entry *dst = NULL;
+ struct dst_entry *dst;
if (sock_owned_by_user(sk))
goto out;
@@ -413,13 +405,9 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
fl.fl_ip_sport = inet->inet_sport;
security_skb_classify_flow(skb, &fl);
- if ((err = ip6_dst_lookup(sk, &dst, &fl))) {
- sk->sk_err_soft = -err;
- goto out;
- }
-
- if ((err = xfrm_lookup(net, &dst, &fl, sk, 0)) < 0) {
- sk->sk_err_soft = -err;
+ dst = ip6_dst_lookup_flow(sk, &fl, NULL, false);
+ if (IS_ERR(dst)) {
+ sk->sk_err_soft = -PTR_ERR(dst);
goto out;
}
@@ -496,7 +484,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
struct in6_addr * final_p, final;
struct flowi fl;
struct dst_entry *dst;
- int err = -1;
+ int err;
memset(&fl, 0, sizeof(fl));
fl.proto = IPPROTO_TCP;
@@ -512,15 +500,13 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
opt = np->opt;
final_p = fl6_update_dst(&fl, opt, &final);
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err)
+ dst = ip6_dst_lookup_flow(sk, &fl, final_p, false);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
goto done;
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
- if ((err = xfrm_lookup(sock_net(sk), &dst, &fl, sk, 0)) < 0)
- goto done;
-
+ }
skb = tcp_make_synack(sk, dst, req, rvp);
+ err = -ENOMEM;
if (skb) {
__tcp_v6_send_check(skb, &treq->loc_addr, &treq->rmt_addr);
@@ -1079,15 +1065,14 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
* Underlying function will use this to retrieve the network
* namespace
*/
- if (!ip6_dst_lookup(ctl_sk, &dst, &fl)) {
- if (xfrm_lookup(net, &dst, &fl, NULL, 0) >= 0) {
- skb_dst_set(buff, dst);
- ip6_xmit(ctl_sk, buff, &fl, NULL);
- TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
- if (rst)
- TCP_INC_STATS_BH(net, TCP_MIB_OUTRSTS);
- return;
- }
+ dst = ip6_dst_lookup_flow(ctl_sk, &fl, NULL, false);
+ if (!IS_ERR(dst)) {
+ skb_dst_set(buff, dst);
+ ip6_xmit(ctl_sk, buff, &fl, NULL);
+ TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
+ if (rst)
+ TCP_INC_STATS_BH(net, TCP_MIB_OUTRSTS);
+ return;
}
kfree_skb(buff);
@@ -1323,7 +1308,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
tcp_death_row.sysctl_tw_recycle &&
(dst = inet6_csk_route_req(sk, req)) != NULL &&
(peer = rt6_get_peer((struct rt6_info *)dst)) != NULL &&
- ipv6_addr_equal((struct in6_addr *)peer->daddr.a6,
+ ipv6_addr_equal((struct in6_addr *)peer->daddr.addr.a6,
&treq->rmt_addr)) {
inet_peer_refcheck(peer);
if ((u32)get_seconds() - peer->tcp_ts_stamp < TCP_PAWS_MSL &&
@@ -1636,10 +1621,8 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
opt_skb = skb_clone(skb, GFP_ATOMIC);
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
- TCP_CHECK_TIMER(sk);
if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len))
goto reset;
- TCP_CHECK_TIMER(sk);
if (opt_skb)
goto ipv6_pktoptions;
return 0;
@@ -1667,10 +1650,8 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
}
}
- TCP_CHECK_TIMER(sk);
if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len))
goto reset;
- TCP_CHECK_TIMER(sk);
if (opt_skb)
goto ipv6_pktoptions;
return 0;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 9a009c66c8a3..d86d7f67a597 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1125,18 +1125,11 @@ do_udp_sendmsg:
security_sk_classify_flow(sk, &fl);
- err = ip6_sk_dst_lookup(sk, &dst, &fl);
- if (err)
+ dst = ip6_sk_dst_lookup_flow(sk, &fl, final_p, true);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
+ dst = NULL;
goto out;
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- err = __xfrm_lookup(sock_net(sk), &dst, &fl, sk, XFRM_LOOKUP_WAIT);
- if (err < 0) {
- if (err == -EREMOTE)
- err = ip6_dst_blackhole(sk, &dst, &fl);
- if (err < 0)
- goto out;
}
if (hlimit < 0) {
@@ -1299,7 +1292,7 @@ static int udp6_ufo_send_check(struct sk_buff *skb)
return 0;
}
-static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, int features)
+static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, u32 features)
{
struct sk_buff *segs = ERR_PTR(-EINVAL);
unsigned int mss;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index da87428681cc..48ce496802fd 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -27,8 +27,8 @@
static struct xfrm_policy_afinfo xfrm6_policy_afinfo;
static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos,
- xfrm_address_t *saddr,
- xfrm_address_t *daddr)
+ const xfrm_address_t *saddr,
+ const xfrm_address_t *daddr)
{
struct flowi fl = {};
struct dst_entry *dst;
@@ -67,7 +67,7 @@ static int xfrm6_get_saddr(struct net *net,
return 0;
}
-static int xfrm6_get_tos(struct flowi *fl)
+static int xfrm6_get_tos(const struct flowi *fl)
{
return 0;
}
@@ -87,7 +87,7 @@ static int xfrm6_init_path(struct xfrm_dst *path, struct dst_entry *dst,
}
static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
- struct flowi *fl)
+ const struct flowi *fl)
{
struct rt6_info *rt = (struct rt6_info*)xdst->route;
@@ -220,6 +220,7 @@ static void xfrm6_dst_destroy(struct dst_entry *dst)
if (likely(xdst->u.rt6.rt6i_idev))
in6_dev_put(xdst->u.rt6.rt6i_idev);
+ dst_destroy_metrics_generic(dst);
if (likely(xdst->u.rt6.rt6i_peer))
inet_putpeer(xdst->u.rt6.rt6i_peer);
xfrm_dst_destroy(xdst);
@@ -257,6 +258,7 @@ static struct dst_ops xfrm6_dst_ops = {
.protocol = cpu_to_be16(ETH_P_IPV6),
.gc = xfrm6_garbage_collect,
.update_pmtu = xfrm6_update_pmtu,
+ .cow_metrics = dst_cow_metrics_generic,
.destroy = xfrm6_dst_destroy,
.ifdown = xfrm6_dst_ifdown,
.local_out = __ip6_local_out,
@@ -272,6 +274,7 @@ static struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
.get_tos = xfrm6_get_tos,
.init_path = xfrm6_init_path,
.fill_dst = xfrm6_fill_dst,
+ .blackhole_route = ip6_blackhole_route,
};
static int __init xfrm6_policy_init(void)
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index a67575d472a3..a02598e0079a 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -20,7 +20,7 @@
#include <net/addrconf.h>
static void
-__xfrm6_init_tempsel(struct xfrm_selector *sel, struct flowi *fl)
+__xfrm6_init_tempsel(struct xfrm_selector *sel, const struct flowi *fl)
{
/* Initialize temporary selector matching only
* to current session. */
@@ -38,8 +38,8 @@ __xfrm6_init_tempsel(struct xfrm_selector *sel, struct flowi *fl)
}
static void
-xfrm6_init_temprop(struct xfrm_state *x, struct xfrm_tmpl *tmpl,
- xfrm_address_t *daddr, xfrm_address_t *saddr)
+xfrm6_init_temprop(struct xfrm_state *x, const struct xfrm_tmpl *tmpl,
+ const xfrm_address_t *daddr, const xfrm_address_t *saddr)
{
x->id = tmpl->id;
if (ipv6_addr_any((struct in6_addr*)&x->id.daddr))
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 21:57:36 +0000