netfilter: ipset: Fix the order of listing of sets

A restoreable saving of sets requires that list:set type of sets
come last and the code part which should have taken into account
the ordering was broken. The patch fixes the listing order.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index e88ac3c3ed07b7ae4385bf3e0ea6cc52da979c36..d87e03bc8ef8dd83b4caa62835fe91546b446e97 100644 (file)
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -1022,8 +1022,9 @@ ip_set_dump_start(struct sk_buff *skb, struct netlink_callback *cb)
        if (cb->args[1] >= ip_set_max)
                goto out;
 
-       pr_debug("args[0]: %ld args[1]: %ld\n", cb->args[0], cb->args[1]);
        max = cb->args[0] == DUMP_ONE ? cb->args[1] + 1 : ip_set_max;
+dump_last:
+       pr_debug("args[0]: %ld args[1]: %ld\n", cb->args[0], cb->args[1]);
        for (; cb->args[1] < max; cb->args[1]++) {
                index = (ip_set_id_t) cb->args[1];
                set = ip_set_list[index];
@@ -1038,8 +1039,8 @@ ip_set_dump_start(struct sk_buff *skb, struct netlink_callback *cb)
                 * so that lists (unions of sets) are dumped last.
                 */
                if (cb->args[0] != DUMP_ONE &&
-                   !((cb->args[0] == DUMP_ALL) ^
-                     (set->type->features & IPSET_DUMP_LAST)))
+                   ((cb->args[0] == DUMP_ALL) ==
+                    !!(set->type->features & IPSET_DUMP_LAST)))
                        continue;
                pr_debug("List set: %s\n", set->name);
                if (!cb->args[2]) {
@@ -1083,6 +1084,12 @@ ip_set_dump_start(struct sk_buff *skb, struct netlink_callback *cb)
                        goto release_refcount;
                }
        }
+       /* If we dump all sets, continue with dumping last ones */
+       if (cb->args[0] == DUMP_ALL) {
+               cb->args[0] = DUMP_LAST;
+               cb->args[1] = 0;
+               goto dump_last;
+       }
        goto out;
 
 nla_put_failure:
@@ -1093,11 +1100,6 @@ release_refcount:
                pr_debug("release set %s\n", ip_set_list[index]->name);
                ip_set_put_byindex(index);
        }
-
-       /* If we dump all sets, continue with dumping last ones */
-       if (cb->args[0] == DUMP_ALL && cb->args[1] >= max && !cb->args[2])
-               cb->args[0] = DUMP_LAST;
-
 out:
        if (nlh) {
                nlmsg_end(skb, nlh);