7 files changed, 150 insertions, 165 deletions

diff --git a/net/decnet/Kconfig b/net/decnet/Kconfig
index 36e72cb145b0..7914fd619c5c 100644
--- a/net/decnet/Kconfig
+++ b/net/decnet/Kconfig
@@ -41,11 +41,3 @@ config DECNET_ROUTER
 
           See <file:Documentation/networking/decnet.txt> for more information.
 
-config DECNET_ROUTE_FWMARK
-        bool "DECnet: use FWMARK value as routing key (EXPERIMENTAL)"
-        depends on DECNET_ROUTER && NETFILTER
-        help
-          If you say Y here, you will be able to specify different routes for
-          packets with different FWMARK ("firewalling mark") values
-          (see ipchains(8), "-m" argument).
-
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 01861feb608d..0b9d4c955154 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -38,7 +38,6 @@
 #include <linux/if_arp.h>
 #include <linux/if_ether.h>
 #include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
 #include <linux/sysctl.h>
 #include <linux/notifier.h>
 #include <asm/uaccess.h>
@@ -47,6 +46,7 @@
 #include <net/dst.h>
 #include <net/flow.h>
 #include <net/fib_rules.h>
+#include <net/netlink.h>
 #include <net/dn.h>
 #include <net/dn_dev.h>
 #include <net/dn_route.h>
@@ -73,7 +73,7 @@ static BLOCKING_NOTIFIER_HEAD(dnaddr_chain);
 
 static struct dn_dev *dn_dev_create(struct net_device *dev, int *err);
 static void dn_dev_delete(struct net_device *dev);
-static void rtmsg_ifa(int event, struct dn_ifaddr *ifa);
+static void dn_ifaddr_notify(int event, struct dn_ifaddr *ifa);
 
 static int dn_eth_up(struct net_device *);
 static void dn_eth_down(struct net_device *);
@@ -255,12 +255,10 @@ static void dn_dev_sysctl_register(struct net_device *dev, struct dn_dev_parms *
         struct dn_dev_sysctl_table *t;
         int i;
 
-        t = kmalloc(sizeof(*t), GFP_KERNEL);
+        t = kmemdup(&dn_dev_sysctl, sizeof(*t), GFP_KERNEL);
         if (t == NULL)
                 return;
 
-        memcpy(t, &dn_dev_sysctl, sizeof(*t));
-
         for(i = 0; i < ARRAY_SIZE(t->dn_dev_vars) - 1; i++) {
                 long offset = (long)t->dn_dev_vars[i].data;
                 t->dn_dev_vars[i].data = ((char *)parms) + offset;
@@ -442,7 +440,7 @@ static void dn_dev_del_ifa(struct dn_dev *dn_db, struct dn_ifaddr **ifap, int de
                 }
         }
 
-        rtmsg_ifa(RTM_DELADDR, ifa1);
+        dn_ifaddr_notify(RTM_DELADDR, ifa1);
         blocking_notifier_call_chain(&dnaddr_chain, NETDEV_DOWN, ifa1);
         if (destroy) {
                 dn_dev_free_ifa(ifa1);
@@ -477,7 +475,7 @@ static int dn_dev_insert_ifa(struct dn_dev *dn_db, struct dn_ifaddr *ifa)
         ifa->ifa_next = dn_db->ifa_list;
         dn_db->ifa_list = ifa;
 
-        rtmsg_ifa(RTM_NEWADDR, ifa);
+        dn_ifaddr_notify(RTM_NEWADDR, ifa);
         blocking_notifier_call_chain(&dnaddr_chain, NETDEV_UP, ifa);
 
         return 0;
@@ -647,41 +645,62 @@ static struct dn_dev *dn_dev_by_index(int ifindex)
         return dn_dev;
 }
 
-static int dn_dev_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static struct nla_policy dn_ifa_policy[IFA_MAX+1] __read_mostly = {
+        [IFA_ADDRESS]           = { .type = NLA_U16 },
+        [IFA_LOCAL]             = { .type = NLA_U16 },
+        [IFA_LABEL]             = { .type = NLA_STRING,
+                                    .len = IFNAMSIZ - 1 },
+};
+
+static int dn_nl_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-        struct rtattr **rta = arg;
+        struct nlattr *tb[IFA_MAX+1];
         struct dn_dev *dn_db;
-        struct ifaddrmsg *ifm = NLMSG_DATA(nlh);
+        struct ifaddrmsg *ifm;
         struct dn_ifaddr *ifa, **ifap;
+        int err = -EADDRNOTAVAIL;
+
+        err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, dn_ifa_policy);
+        if (err < 0)
+                goto errout;
 
+        ifm = nlmsg_data(nlh);
         if ((dn_db = dn_dev_by_index(ifm->ifa_index)) == NULL)
-                return -EADDRNOTAVAIL;
+                goto errout;
+
+        for (ifap = &dn_db->ifa_list; (ifa = *ifap); ifap = &ifa->ifa_next) {
+                if (tb[IFA_LOCAL] &&
+                    nla_memcmp(tb[IFA_LOCAL], &ifa->ifa_local, 2))
+                        continue;
 
-        for(ifap = &dn_db->ifa_list; (ifa=*ifap) != NULL; ifap = &ifa->ifa_next) {
-                void *tmp = rta[IFA_LOCAL-1];
-                if ((tmp && memcmp(RTA_DATA(tmp), &ifa->ifa_local, 2)) ||
-                    (rta[IFA_LABEL-1] && rtattr_strcmp(rta[IFA_LABEL-1], ifa->ifa_label)))
+                if (tb[IFA_LABEL] && nla_strcmp(tb[IFA_LABEL], ifa->ifa_label))
                         continue;
 
                 dn_dev_del_ifa(dn_db, ifap, 1);
                 return 0;
         }
 
-        return -EADDRNOTAVAIL;
+errout:
+        return err;
 }
 
-static int dn_dev_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int dn_nl_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-        struct rtattr **rta = arg;
+        struct nlattr *tb[IFA_MAX+1];
         struct net_device *dev;
         struct dn_dev *dn_db;
-        struct ifaddrmsg *ifm = NLMSG_DATA(nlh);
+        struct ifaddrmsg *ifm;
         struct dn_ifaddr *ifa;
-        int rv;
+        int err;
 
-        if (rta[IFA_LOCAL-1] == NULL)
+        err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, dn_ifa_policy);
+        if (err < 0)
+                return err;
+
+        if (tb[IFA_LOCAL] == NULL)
                 return -EINVAL;
 
+        ifm = nlmsg_data(nlh);
         if ((dev = __dev_get_by_index(ifm->ifa_index)) == NULL)
                 return -ENODEV;
 
@@ -695,69 +714,77 @@ static int dn_dev_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *a
         if ((ifa = dn_dev_alloc_ifa()) == NULL)
                 return -ENOBUFS;
 
-        if (!rta[IFA_ADDRESS - 1])
-                rta[IFA_ADDRESS - 1] = rta[IFA_LOCAL - 1];
-        memcpy(&ifa->ifa_local, RTA_DATA(rta[IFA_LOCAL-1]), 2);
-        memcpy(&ifa->ifa_address, RTA_DATA(rta[IFA_ADDRESS-1]), 2);
+        if (tb[IFA_ADDRESS] == NULL)
+                tb[IFA_ADDRESS] = tb[IFA_LOCAL];
+
+        ifa->ifa_local = nla_get_le16(tb[IFA_LOCAL]);
+        ifa->ifa_address = nla_get_le16(tb[IFA_ADDRESS]);
         ifa->ifa_flags = ifm->ifa_flags;
         ifa->ifa_scope = ifm->ifa_scope;
         ifa->ifa_dev = dn_db;
-        if (rta[IFA_LABEL-1])
-                rtattr_strlcpy(ifa->ifa_label, rta[IFA_LABEL-1], IFNAMSIZ);
+
+        if (tb[IFA_LABEL])
+                nla_strlcpy(ifa->ifa_label, tb[IFA_LABEL], IFNAMSIZ);
         else
                 memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
 
-        rv = dn_dev_insert_ifa(dn_db, ifa);
-        if (rv)
+        err = dn_dev_insert_ifa(dn_db, ifa);
+        if (err)
                 dn_dev_free_ifa(ifa);
-        return rv;
+
+        return err;
 }
 
-static int dn_dev_fill_ifaddr(struct sk_buff *skb, struct dn_ifaddr *ifa,
-                                u32 pid, u32 seq, int event, unsigned int flags)
+static inline size_t dn_ifaddr_nlmsg_size(void)
+{
+        return NLMSG_ALIGN(sizeof(struct ifaddrmsg))
+               + nla_total_size(IFNAMSIZ) /* IFA_LABEL */
+               + nla_total_size(2) /* IFA_ADDRESS */
+               + nla_total_size(2); /* IFA_LOCAL */
+}
+
+static int dn_nl_fill_ifaddr(struct sk_buff *skb, struct dn_ifaddr *ifa,
+                             u32 pid, u32 seq, int event, unsigned int flags)
 {
         struct ifaddrmsg *ifm;
         struct nlmsghdr *nlh;
-        unsigned char *b = skb->tail;
 
-        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
-        ifm = NLMSG_DATA(nlh);
+        nlh = nlmsg_put(skb, pid, seq, event, sizeof(*ifm), flags);
+        if (nlh == NULL)
+                return -ENOBUFS;
 
+        ifm = nlmsg_data(nlh);
         ifm->ifa_family = AF_DECnet;
         ifm->ifa_prefixlen = 16;
         ifm->ifa_flags = ifa->ifa_flags | IFA_F_PERMANENT;
         ifm->ifa_scope = ifa->ifa_scope;
         ifm->ifa_index = ifa->ifa_dev->dev->ifindex;
+
         if (ifa->ifa_address)
-                RTA_PUT(skb, IFA_ADDRESS, 2, &ifa->ifa_address);
+                NLA_PUT_LE16(skb, IFA_ADDRESS, ifa->ifa_address);
         if (ifa->ifa_local)
-                RTA_PUT(skb, IFA_LOCAL, 2, &ifa->ifa_local);
+                NLA_PUT_LE16(skb, IFA_LOCAL, ifa->ifa_local);
         if (ifa->ifa_label[0])
-                RTA_PUT(skb, IFA_LABEL, IFNAMSIZ, &ifa->ifa_label);
-        nlh->nlmsg_len = skb->tail - b;
-        return skb->len;
+                NLA_PUT_STRING(skb, IFA_LABEL, ifa->ifa_label);
+
+        return nlmsg_end(skb, nlh);
 
-nlmsg_failure:
-rtattr_failure:
-        skb_trim(skb, b - skb->data);
-        return -1;
+nla_put_failure:
+        return nlmsg_cancel(skb, nlh);
 }
 
-static void rtmsg_ifa(int event, struct dn_ifaddr *ifa)
+static void dn_ifaddr_notify(int event, struct dn_ifaddr *ifa)
 {
         struct sk_buff *skb;
-        int payload = sizeof(struct ifaddrmsg) + 128;
         int err = -ENOBUFS;
 
-        skb = alloc_skb(nlmsg_total_size(payload), GFP_KERNEL);
+        skb = alloc_skb(dn_ifaddr_nlmsg_size(), GFP_KERNEL);
         if (skb == NULL)
                 goto errout;
 
-        err = dn_dev_fill_ifaddr(skb, ifa, 0, 0, event, 0);
-        if (err < 0) {
-                kfree_skb(skb);
-                goto errout;
-        }
+        err = dn_nl_fill_ifaddr(skb, ifa, 0, 0, event, 0);
+        /* failure implies BUG in dn_ifaddr_nlmsg_size() */
+        BUG_ON(err < 0);
 
         err = rtnl_notify(skb, 0, RTNLGRP_DECnet_IFADDR, NULL, GFP_KERNEL);
 errout:
@@ -765,39 +792,43 @@ errout:
                 rtnl_set_sk_err(RTNLGRP_DECnet_IFADDR, err);
 }
 
-static int dn_dev_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
+static int dn_nl_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
 {
-        int idx, dn_idx;
-        int s_idx, s_dn_idx;
+        int idx, dn_idx = 0, skip_ndevs, skip_naddr;
         struct net_device *dev;
         struct dn_dev *dn_db;
         struct dn_ifaddr *ifa;
 
-        s_idx = cb->args[0];
-        s_dn_idx = dn_idx = cb->args[1];
+        skip_ndevs = cb->args[0];
+        skip_naddr = cb->args[1];
+
         read_lock(&dev_base_lock);
-        for(dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
-                if (idx < s_idx)
+        for (dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
+                if (idx < skip_ndevs)
                         continue;
-                if (idx > s_idx)
-                        s_dn_idx = 0;
+                else if (idx > skip_ndevs) {
+                        /* Only skip over addresses for first dev dumped
+                         * in this iteration (idx == skip_ndevs) */
+                        skip_naddr = 0;
+                }
+
                 if ((dn_db = dev->dn_ptr) == NULL)
                         continue;
 
-                for(ifa = dn_db->ifa_list, dn_idx = 0; ifa; ifa = ifa->ifa_next, dn_idx++) {
-                        if (dn_idx < s_dn_idx)
+                for (ifa = dn_db->ifa_list, dn_idx = 0; ifa;
+                     ifa = ifa->ifa_next, dn_idx++) {
+                        if (dn_idx < skip_naddr)
                                 continue;
 
-                        if (dn_dev_fill_ifaddr(skb, ifa,
-                                               NETLINK_CB(cb->skb).pid,
-                                               cb->nlh->nlmsg_seq,
-                                               RTM_NEWADDR,
-                                               NLM_F_MULTI) <= 0)
+                        if (dn_nl_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
+                                              cb->nlh->nlmsg_seq, RTM_NEWADDR,
+                                              NLM_F_MULTI) < 0)
                                 goto done;
                 }
         }
 done:
         read_unlock(&dev_base_lock);
+
         cb->args[0] = idx;
         cb->args[1] = dn_idx;
 
@@ -1414,9 +1445,9 @@ static struct file_operations dn_dev_seq_fops = {
 
 static struct rtnetlink_link dnet_rtnetlink_table[RTM_NR_MSGTYPES] =
 {
-        [RTM_NEWADDR  - RTM_BASE] = { .doit     = dn_dev_rtm_newaddr,   },
-        [RTM_DELADDR  - RTM_BASE] = { .doit     = dn_dev_rtm_deladdr,   },
-        [RTM_GETADDR  - RTM_BASE] = { .dumpit   = dn_dev_dump_ifaddr,   },
+        [RTM_NEWADDR  - RTM_BASE] = { .doit     = dn_nl_newaddr,        },
+        [RTM_DELADDR  - RTM_BASE] = { .doit     = dn_nl_deladdr,        },
+        [RTM_GETADDR  - RTM_BASE] = { .dumpit   = dn_nl_dump_ifaddr,    },
 #ifdef CONFIG_DECNET_ROUTER
         [RTM_NEWROUTE - RTM_BASE] = { .doit     = dn_fib_rtm_newroute,  },
         [RTM_DELROUTE - RTM_BASE] = { .doit     = dn_fib_rtm_delroute,  },
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index ff0ebe99137d..7322bb36e825 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -591,7 +591,6 @@ static int dn_neigh_seq_open(struct inode *inode, struct file *file)
 
         seq          = file->private_data;
         seq->private = s;
-        memset(s, 0, sizeof(*s));
 out:
         return rc;
 out_kfree:
diff --git a/net/decnet/dn_nsp_in.c b/net/decnet/dn_nsp_in.c
index 7683d4f754d2..39a6cf7fb566 100644
--- a/net/decnet/dn_nsp_in.c
+++ b/net/decnet/dn_nsp_in.c
@@ -804,7 +804,7 @@ got_it:
                                 goto free_out;
                 }
 
-                return sk_receive_skb(sk, skb);
+                return sk_receive_skb(sk, skb, 0);
         }
 
         return dn_nsp_no_socket(skb, reason);
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 23489f7232d2..9881933167bd 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -269,9 +269,7 @@ static inline int compare_keys(struct flowi *fl1, struct flowi *fl2)
 {
         return ((fl1->nl_u.dn_u.daddr ^ fl2->nl_u.dn_u.daddr) |
                 (fl1->nl_u.dn_u.saddr ^ fl2->nl_u.dn_u.saddr) |
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-                (fl1->nl_u.dn_u.fwmark ^ fl2->nl_u.dn_u.fwmark) |
-#endif
+                (fl1->mark ^ fl2->mark) |
                 (fl1->nl_u.dn_u.scope ^ fl2->nl_u.dn_u.scope) |
                 (fl1->oif ^ fl2->oif) |
                 (fl1->iif ^ fl2->iif)) == 0;
@@ -882,10 +880,8 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old
                                       { .daddr = oldflp->fld_dst,
                                         .saddr = oldflp->fld_src,
                                         .scope = RT_SCOPE_UNIVERSE,
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-                                        .fwmark = oldflp->fld_fwmark
-#endif
                                      } },
+                            .mark = oldflp->mark,
                             .iif = loopback_dev.ifindex,
                             .oif = oldflp->oif };
         struct dn_route *rt = NULL;
@@ -903,7 +899,7 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old
                        "dn_route_output_slow: dst=%04x src=%04x mark=%d"
                        " iif=%d oif=%d\n", dn_ntohs(oldflp->fld_dst),
                        dn_ntohs(oldflp->fld_src),
-                       oldflp->fld_fwmark, loopback_dev.ifindex, oldflp->oif);
+                       oldflp->mark, loopback_dev.ifindex, oldflp->oif);
 
         /* If we have an output interface, verify its a DECnet device */
         if (oldflp->oif) {
@@ -1108,9 +1104,7 @@ make_route:
         rt->fl.fld_dst    = oldflp->fld_dst;
         rt->fl.oif        = oldflp->oif;
         rt->fl.iif        = 0;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-        rt->fl.fld_fwmark = oldflp->fld_fwmark;
-#endif
+        rt->fl.mark       = oldflp->mark;
 
         rt->rt_saddr      = fl.fld_src;
         rt->rt_daddr      = fl.fld_dst;
@@ -1178,9 +1172,7 @@ static int __dn_route_output_key(struct dst_entry **pprt, const struct flowi *fl
                         rt = rcu_dereference(rt->u.rt_next)) {
                         if ((flp->fld_dst == rt->fl.fld_dst) &&
                             (flp->fld_src == rt->fl.fld_src) &&
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-                            (flp->fld_fwmark == rt->fl.fld_fwmark) &&
-#endif
+                            (flp->mark == rt->fl.mark) &&
                             (rt->fl.iif == 0) &&
                             (rt->fl.oif == flp->oif)) {
                                 rt->u.dst.lastuse = jiffies;
@@ -1235,10 +1227,8 @@ static int dn_route_input_slow(struct sk_buff *skb)
                                      { .daddr = cb->dst,
                                        .saddr = cb->src,
                                        .scope = RT_SCOPE_UNIVERSE,
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-                                       .fwmark = skb->nfmark
-#endif
                                     } },
+                            .mark = skb->mark,
                             .iif = skb->dev->ifindex };
         struct dn_fib_res res = { .fi = NULL, .type = RTN_UNREACHABLE };
         int err = -EINVAL;
@@ -1385,7 +1375,7 @@ make_route:
         rt->fl.fld_dst    = cb->dst;
         rt->fl.oif        = 0;
         rt->fl.iif        = in_dev->ifindex;
-        rt->fl.fld_fwmark = fl.fld_fwmark;
+        rt->fl.mark       = fl.mark;
 
         rt->u.dst.flags = DST_HOST;
         rt->u.dst.neighbour = neigh;
@@ -1457,9 +1447,7 @@ int dn_route_input(struct sk_buff *skb)
                 if ((rt->fl.fld_src == cb->src) &&
                     (rt->fl.fld_dst == cb->dst) &&
                     (rt->fl.oif == 0) &&
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-                    (rt->fl.fld_fwmark == skb->nfmark) &&
-#endif
+                    (rt->fl.mark == skb->mark) &&
                     (rt->fl.iif == cb->iif)) {
                         rt->u.dst.lastuse = jiffies;
                         dst_hold(&rt->u.dst);
@@ -1481,7 +1469,7 @@ static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
         struct rtmsg *r;
         struct nlmsghdr *nlh;
         unsigned char *b = skb->tail;
-        struct rta_cacheinfo ci;
+        long expires;
 
         nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*r), flags);
         r = NLMSG_DATA(nlh);
@@ -1514,16 +1502,10 @@ static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
                 RTA_PUT(skb, RTA_GATEWAY, 2, &rt->rt_gateway);
         if (rtnetlink_put_metrics(skb, rt->u.dst.metrics) < 0)
                 goto rtattr_failure;
-        ci.rta_lastuse = jiffies_to_clock_t(jiffies - rt->u.dst.lastuse);
-        ci.rta_used     = rt->u.dst.__use;
-        ci.rta_clntref  = atomic_read(&rt->u.dst.__refcnt);
-        if (rt->u.dst.expires)
-                ci.rta_expires = jiffies_to_clock_t(rt->u.dst.expires - jiffies);
-        else
-                ci.rta_expires = 0;
-        ci.rta_error    = rt->u.dst.error;
-        ci.rta_id       = ci.rta_ts = ci.rta_tsage = 0;
-        RTA_PUT(skb, RTA_CACHEINFO, sizeof(ci), &ci);
+        expires = rt->u.dst.expires ? rt->u.dst.expires - jiffies : 0;
+        if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0, expires,
+                               rt->u.dst.error) < 0)
+                goto rtattr_failure;
         if (rt->fl.iif)
                 RTA_PUT(skb, RTA_IIF, sizeof(int), &rt->fl.iif);
 
@@ -1604,8 +1586,6 @@ int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
         if (rtm->rtm_flags & RTM_F_NOTIFY)
                 rt->rt_flags |= RTCF_NOTIFY;
 
-        NETLINK_CB(skb).dst_pid = NETLINK_CB(in_skb).pid;
-
         err = dn_rt_fill_info(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq, RTM_NEWROUTE, 0, 0);
 
         if (err == 0)
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 590e0a72495c..e32d0c3d5a96 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -45,10 +45,6 @@ struct dn_fib_rule
         __le16                  dstmask;
         __le16                  srcmap;
         u8                      flags;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-        u32                     fwmark;
-        u32                     fwmask;
-#endif
 };
 
 static struct dn_fib_rule default_rule = {
@@ -112,13 +108,9 @@ errout:
 }
 
 static struct nla_policy dn_fib_rule_policy[FRA_MAX+1] __read_mostly = {
-        [FRA_IFNAME]    = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
-        [FRA_PRIORITY]  = { .type = NLA_U32 },
+        FRA_GENERIC_POLICY,
         [FRA_SRC]       = { .type = NLA_U16 },
         [FRA_DST]       = { .type = NLA_U16 },
-        [FRA_FWMARK]    = { .type = NLA_U32 },
-        [FRA_FWMASK]    = { .type = NLA_U32 },
-        [FRA_TABLE]     = { .type = NLA_U32 },
 };
 
 static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
@@ -131,11 +123,6 @@ static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
             ((daddr ^ r->dst) & r->dstmask))
                 return 0;
 
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-        if ((r->fwmark ^ fl->fld_fwmark) & r->fwmask)
-                return 0;
-#endif
-
         return 1;
 }
 
@@ -169,20 +156,6 @@ static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
         if (tb[FRA_DST])
                 r->dst = nla_get_u16(tb[FRA_DST]);
 
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-        if (tb[FRA_FWMARK]) {
-                r->fwmark = nla_get_u32(tb[FRA_FWMARK]);
-                if (r->fwmark)
-                        /* compatibility: if the mark value is non-zero all bits
-                         * are compared unless a mask is explicitly specified.
-                         */
-                        r->fwmask = 0xFFFFFFFF;
-        }
-
-        if (tb[FRA_FWMASK])
-                r->fwmask = nla_get_u32(tb[FRA_FWMASK]);
-#endif
-
         r->src_len = frh->src_len;
         r->srcmask = dnet_make_mask(r->src_len);
         r->dst_len = frh->dst_len;
@@ -203,14 +176,6 @@ static int dn_fib_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh,
         if (frh->dst_len && (r->dst_len != frh->dst_len))
                 return 0;
 
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-        if (tb[FRA_FWMARK] && (r->fwmark != nla_get_u32(tb[FRA_FWMARK])))
-                return 0;
-
-        if (tb[FRA_FWMASK] && (r->fwmask != nla_get_u32(tb[FRA_FWMASK])))
-                return 0;
-#endif
-
         if (tb[FRA_SRC] && (r->src != nla_get_u16(tb[FRA_SRC])))
                 return 0;
 
@@ -248,12 +213,6 @@ static int dn_fib_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
         frh->src_len = r->src_len;
         frh->tos = 0;
 
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
-        if (r->fwmark)
-                NLA_PUT_U32(skb, FRA_FWMARK, r->fwmark);
-        if (r->fwmask || r->fwmark)
-                NLA_PUT_U32(skb, FRA_FWMASK, r->fwmask);
-#endif
         if (r->dst_len)
                 NLA_PUT_U16(skb, FRA_DST, r->dst);
         if (r->src_len)
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index 317904bb5896..bdbc3f431668 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -263,6 +263,32 @@ static int dn_fib_nh_match(struct rtmsg *r, struct nlmsghdr *nlh, struct dn_kern
         return 0;
 }
 
+static inline size_t dn_fib_nlmsg_size(struct dn_fib_info *fi)
+{
+        size_t payload = NLMSG_ALIGN(sizeof(struct rtmsg))
+                         + nla_total_size(4) /* RTA_TABLE */
+                         + nla_total_size(2) /* RTA_DST */
+                         + nla_total_size(4); /* RTA_PRIORITY */
+
+        /* space for nested metrics */
+        payload += nla_total_size((RTAX_MAX * nla_total_size(4)));
+
+        if (fi->fib_nhs) {
+                /* Also handles the special case fib_nhs == 1 */
+
+                /* each nexthop is packed in an attribute */
+                size_t nhsize = nla_total_size(sizeof(struct rtnexthop));
+
+                /* may contain a gateway attribute */
+                nhsize += nla_total_size(4);
+
+                /* all nexthops are packed in a nested attribute */
+                payload += nla_total_size(fi->fib_nhs * nhsize);
+        }
+
+        return payload;
+}
+
 static int dn_fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
                         u32 tb_id, u8 type, u8 scope, void *dst, int dst_len,
                         struct dn_fib_info *fi, unsigned int flags)
@@ -335,17 +361,15 @@ static void dn_rtmsg_fib(int event, struct dn_fib_node *f, int z, u32 tb_id,
         u32 pid = req ? req->pid : 0;
         int err = -ENOBUFS;
 
-        skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+        skb = nlmsg_new(dn_fib_nlmsg_size(DN_FIB_INFO(f)), GFP_KERNEL);
         if (skb == NULL)
                 goto errout;
 
         err = dn_fib_dump_info(skb, pid, nlh->nlmsg_seq, event, tb_id,
                                f->fn_type, f->fn_scope, &f->fn_key, z,
                                DN_FIB_INFO(f), 0);
-        if (err < 0) {
-                kfree_skb(skb);
-                goto errout;
-        }
+        /* failure implies BUG in dn_fib_nlmsg_size() */
+        BUG_ON(err < 0);
 
         err = rtnl_notify(skb, pid, RTNLGRP_DECnet_ROUTE, nlh, GFP_KERNEL);
 errout:
@@ -807,10 +831,11 @@ struct dn_fib_table *dn_fib_get_table(u32 n, int create)
                 printk(KERN_DEBUG "DECnet: BUG! Attempt to create routing table from interrupt\n"); 
                 return NULL;
         }
-        if ((t = kmalloc(sizeof(struct dn_fib_table) + sizeof(struct dn_hash), GFP_KERNEL)) == NULL)
-                return NULL;
 
-        memset(t, 0, sizeof(struct dn_fib_table));
+        t = kzalloc(sizeof(struct dn_fib_table) + sizeof(struct dn_hash),
+                    GFP_KERNEL);
+        if (t == NULL)
+                return NULL;
 
         t->n = n;
         t->insert = dn_fib_table_insert;
@@ -818,7 +843,6 @@ struct dn_fib_table *dn_fib_get_table(u32 n, int create)
         t->lookup = dn_fib_table_lookup;
         t->flush  = dn_fib_table_flush;
         t->dump = dn_fib_table_dump;
-        memset(t->data, 0, sizeof(struct dn_hash));
         hlist_add_head_rcu(&t->hlist, &dn_fib_table_hash[h]);
 
         return t;