1 files changed, 107 insertions, 33 deletions

diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 66078dad7fe8..82a809901f8e 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -34,6 +34,7 @@
 #include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/compat.h>
 #include <net/protocol.h>
 #include <linux/skbuff.h>
 #include <net/sock.h>
@@ -134,14 +135,15 @@ static struct mr6_table *ip6mr_get_table(struct net *net, u32 id)
         return NULL;
 }
 
-static int ip6mr_fib_lookup(struct net *net, struct flowi *flp,
+static int ip6mr_fib_lookup(struct net *net, struct flowi6 *flp6,
                             struct mr6_table **mrt)
 {
         struct ip6mr_result res;
         struct fib_lookup_arg arg = { .result = &res, };
         int err;
 
-        err = fib_rules_lookup(net->ipv6.mr6_rules_ops, flp, 0, &arg);
+        err = fib_rules_lookup(net->ipv6.mr6_rules_ops,
+                               flowi6_to_flowi(flp6), 0, &arg);
         if (err < 0)
                 return err;
         *mrt = res.mrt;
@@ -269,7 +271,7 @@ static struct mr6_table *ip6mr_get_table(struct net *net, u32 id)
         return net->ipv6.mrt6;
 }
 
-static int ip6mr_fib_lookup(struct net *net, struct flowi *flp,
+static int ip6mr_fib_lookup(struct net *net, struct flowi6 *flp6,
                             struct mr6_table **mrt)
 {
         *mrt = net->ipv6.mrt6;
@@ -616,9 +618,9 @@ static int pim6_rcv(struct sk_buff *skb)
         struct net_device  *reg_dev = NULL;
         struct net *net = dev_net(skb->dev);
         struct mr6_table *mrt;
-        struct flowi fl = {
-                .iif    = skb->dev->ifindex,
-                .mark   = skb->mark,
+        struct flowi6 fl6 = {
+                .flowi6_iif     = skb->dev->ifindex,
+                .flowi6_mark    = skb->mark,
         };
         int reg_vif_num;
 
@@ -643,7 +645,7 @@ static int pim6_rcv(struct sk_buff *skb)
             ntohs(encap->payload_len) + sizeof(*pim) > skb->len)
                 goto drop;
 
-        if (ip6mr_fib_lookup(net, &fl, &mrt) < 0)
+        if (ip6mr_fib_lookup(net, &fl6, &mrt) < 0)
                 goto drop;
         reg_vif_num = mrt->mroute_reg_vif_num;
 
@@ -661,12 +663,13 @@ static int pim6_rcv(struct sk_buff *skb)
         skb_pull(skb, (u8 *)encap - skb->data);
         skb_reset_network_header(skb);
         skb->protocol = htons(ETH_P_IPV6);
-        skb->ip_summed = 0;
+        skb->ip_summed = CHECKSUM_NONE;
         skb->pkt_type = PACKET_HOST;
 
         skb_tunnel_rx(skb, reg_dev);
 
         netif_rx(skb);
+
         dev_put(reg_dev);
         return 0;
  drop:
@@ -685,14 +688,14 @@ static netdev_tx_t reg_vif_xmit(struct sk_buff *skb,
 {
         struct net *net = dev_net(dev);
         struct mr6_table *mrt;
-        struct flowi fl = {
-                .oif            = dev->ifindex,
-                .iif            = skb->skb_iif,
-                .mark           = skb->mark,
+        struct flowi6 fl6 = {
+                .flowi6_oif     = dev->ifindex,
+                .flowi6_iif     = skb->skb_iif,
+                .flowi6_mark    = skb->mark,
         };
         int err;
 
-        err = ip6mr_fib_lookup(net, &fl, &mrt);
+        err = ip6mr_fib_lookup(net, &fl6, &mrt);
         if (err < 0)
                 return err;
 
@@ -986,8 +989,8 @@ static int mif6_add(struct net *net, struct mr6_table *mrt,
 }
 
 static struct mfc6_cache *ip6mr_cache_find(struct mr6_table *mrt,
-                                           struct in6_addr *origin,
-                                           struct in6_addr *mcastgrp)
+                                           const struct in6_addr *origin,
+                                           const struct in6_addr *mcastgrp)
 {
         int line = MFC6_HASH(mcastgrp, origin);
         struct mfc6_cache *c;
@@ -1037,7 +1040,6 @@ 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) {
@@ -1048,7 +1050,7 @@ 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);
         }
@@ -1546,13 +1548,13 @@ int ip6mr_sk_done(struct sock *sk)
 struct sock *mroute6_socket(struct net *net, struct sk_buff *skb)
 {
         struct mr6_table *mrt;
-        struct flowi fl = {
-                .iif    = skb->skb_iif,
-                .oif    = skb->dev->ifindex,
-                .mark   = skb->mark,
+        struct flowi6 fl6 = {
+                .flowi6_iif     = skb->skb_iif,
+                .flowi6_oif     = skb->dev->ifindex,
+                .flowi6_mark    = skb->mark,
         };
 
-        if (ip6mr_fib_lookup(net, &fl, &mrt) < 0)
+        if (ip6mr_fib_lookup(net, &fl6, &mrt) < 0)
                 return NULL;
 
         return mrt->mroute6_sk;
@@ -1803,6 +1805,80 @@ int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
         }
 }
 
+#ifdef CONFIG_COMPAT
+struct compat_sioc_sg_req6 {
+        struct sockaddr_in6 src;
+        struct sockaddr_in6 grp;
+        compat_ulong_t pktcnt;
+        compat_ulong_t bytecnt;
+        compat_ulong_t wrong_if;
+};
+
+struct compat_sioc_mif_req6 {
+        mifi_t  mifi;
+        compat_ulong_t icount;
+        compat_ulong_t ocount;
+        compat_ulong_t ibytes;
+        compat_ulong_t obytes;
+};
+
+int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
+{
+        struct compat_sioc_sg_req6 sr;
+        struct compat_sioc_mif_req6 vr;
+        struct mif_device *vif;
+        struct mfc6_cache *c;
+        struct net *net = sock_net(sk);
+        struct mr6_table *mrt;
+
+        mrt = ip6mr_get_table(net, raw6_sk(sk)->ip6mr_table ? : RT6_TABLE_DFLT);
+        if (mrt == NULL)
+                return -ENOENT;
+
+        switch (cmd) {
+        case SIOCGETMIFCNT_IN6:
+                if (copy_from_user(&vr, arg, sizeof(vr)))
+                        return -EFAULT;
+                if (vr.mifi >= mrt->maxvif)
+                        return -EINVAL;
+                read_lock(&mrt_lock);
+                vif = &mrt->vif6_table[vr.mifi];
+                if (MIF_EXISTS(mrt, vr.mifi)) {
+                        vr.icount = vif->pkt_in;
+                        vr.ocount = vif->pkt_out;
+                        vr.ibytes = vif->bytes_in;
+                        vr.obytes = vif->bytes_out;
+                        read_unlock(&mrt_lock);
+
+                        if (copy_to_user(arg, &vr, sizeof(vr)))
+                                return -EFAULT;
+                        return 0;
+                }
+                read_unlock(&mrt_lock);
+                return -EADDRNOTAVAIL;
+        case SIOCGETSGCNT_IN6:
+                if (copy_from_user(&sr, arg, sizeof(sr)))
+                        return -EFAULT;
+
+                read_lock(&mrt_lock);
+                c = ip6mr_cache_find(mrt, &sr.src.sin6_addr, &sr.grp.sin6_addr);
+                if (c) {
+                        sr.pktcnt = c->mfc_un.res.pkt;
+                        sr.bytecnt = c->mfc_un.res.bytes;
+                        sr.wrong_if = c->mfc_un.res.wrong_if;
+                        read_unlock(&mrt_lock);
+
+                        if (copy_to_user(arg, &sr, sizeof(sr)))
+                                return -EFAULT;
+                        return 0;
+                }
+                read_unlock(&mrt_lock);
+                return -EADDRNOTAVAIL;
+        default:
+                return -ENOIOCTLCMD;
+        }
+}
+#endif
 
 static inline int ip6mr_forward2_finish(struct sk_buff *skb)
 {
@@ -1822,7 +1898,7 @@ static int ip6mr_forward2(struct net *net, struct mr6_table *mrt,
         struct mif_device *vif = &mrt->vif6_table[vifi];
         struct net_device *dev;
         struct dst_entry *dst;
-        struct flowi fl;
+        struct flowi6 fl6;
 
         if (vif->dev == NULL)
                 goto out_free;
@@ -1840,14 +1916,12 @@ static int ip6mr_forward2(struct net *net, struct mr6_table *mrt,
 
         ipv6h = ipv6_hdr(skb);
 
-        fl = (struct flowi) {
-                .oif = vif->link,
-                .nl_u = { .ip6_u =
-                                { .daddr = ipv6h->daddr, }
-                }
+        fl6 = (struct flowi6) {
+                .flowi6_oif = vif->link,
+                .daddr = ipv6h->daddr,
         };
 
-        dst = ip6_route_output(net, NULL, &fl);
+        dst = ip6_route_output(net, NULL, &fl6);
         if (!dst)
                 goto out_free;
 
@@ -1970,13 +2044,13 @@ int ip6_mr_input(struct sk_buff *skb)
         struct mfc6_cache *cache;
         struct net *net = dev_net(skb->dev);
         struct mr6_table *mrt;
-        struct flowi fl = {
-                .iif    = skb->dev->ifindex,
-                .mark   = skb->mark,
+        struct flowi6 fl6 = {
+                .flowi6_iif     = skb->dev->ifindex,
+                .flowi6_mark    = skb->mark,
         };
         int err;
 
-        err = ip6mr_fib_lookup(net, &fl, &mrt);
+        err = ip6mr_fib_lookup(net, &fl6, &mrt);
         if (err < 0)
                 return err;