netfilter: xtables: add struct xt_mtdtor_param::net

[safe/jmp/linux-2.6] / net / ipv4 / netfilter / ip_tables.c

diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 572330a..cfaba0e 100644 (file)
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -553,13 +553,14 @@ mark_source_chains(struct xt_table_info *newinfo,
 }
 
 static int
-cleanup_match(struct ipt_entry_match *m, unsigned int *i)
+cleanup_match(struct ipt_entry_match *m, struct net *net, unsigned int *i)
 {
        struct xt_mtdtor_param par;
 
        if (i && (*i)-- == 0)
                return 1;
 
+       par.net       = net;
        par.match     = m->u.kernel.match;
        par.matchinfo = m->data;
        par.family    = NFPROTO_IPV4;
@@ -661,8 +662,8 @@ static int check_target(struct ipt_entry *e, const char *name)
 }
 
 static int
-find_check_entry(struct ipt_entry *e, const char *name, unsigned int size,
-                unsigned int *i)
+find_check_entry(struct ipt_entry *e, struct net *net, const char *name,
+                unsigned int size, unsigned int *i)
 {
        struct ipt_entry_target *t;
        struct xt_target *target;
@@ -675,6 +676,7 @@ find_check_entry(struct ipt_entry *e, const char *name, unsigned int size,
                return ret;
 
        j = 0;
+       mtpar.net       = net;
        mtpar.table     = name;
        mtpar.entryinfo = &e->ip;
        mtpar.hook_mask = e->comefrom;
@@ -704,7 +706,7 @@ find_check_entry(struct ipt_entry *e, const char *name, unsigned int size,
  err:
        module_put(t->u.kernel.target->me);
  cleanup_matches:
-       IPT_MATCH_ITERATE(e, cleanup_match, &j);
+       IPT_MATCH_ITERATE(e, cleanup_match, net, &j);
        return ret;
 }
 
@@ -774,7 +776,7 @@ check_entry_size_and_hooks(struct ipt_entry *e,
 }
 
 static int
-cleanup_entry(struct ipt_entry *e, unsigned int *i)
+cleanup_entry(struct ipt_entry *e, struct net *net, unsigned int *i)
 {
        struct xt_tgdtor_param par;
        struct ipt_entry_target *t;
@@ -783,7 +785,7 @@ cleanup_entry(struct ipt_entry *e, unsigned int *i)
                return 1;
 
        /* Cleanup all matches */
-       IPT_MATCH_ITERATE(e, cleanup_match, NULL);
+       IPT_MATCH_ITERATE(e, cleanup_match, net, NULL);
        t = ipt_get_target(e);
 
        par.target   = t->u.kernel.target;
@@ -798,7 +800,8 @@ cleanup_entry(struct ipt_entry *e, unsigned int *i)
 /* Checks and translates the user-supplied table segment (held in
    newinfo) */
 static int
-translate_table(const char *name,
+translate_table(struct net *net,
+               const char *name,
                unsigned int valid_hooks,
                struct xt_table_info *newinfo,
                void *entry0,
@@ -860,11 +863,11 @@ translate_table(const char *name,
        /* Finally, each sanity check must pass */
        i = 0;
        ret = IPT_ENTRY_ITERATE(entry0, newinfo->size,
-                               find_check_entry, name, size, &i);
+                               find_check_entry, net, name, size, &i);
 
        if (ret != 0) {
                IPT_ENTRY_ITERATE(entry0, newinfo->size,
-                               cleanup_entry, &i);
+                               cleanup_entry, net, &i);
                return ret;
        }
 
@@ -1258,7 +1261,7 @@ __do_replace(struct net *net, const char *name, unsigned int valid_hooks,
        /* Decrease module usage counts and free resource */
        loc_cpu_old_entry = oldinfo->entries[raw_smp_processor_id()];
        IPT_ENTRY_ITERATE(loc_cpu_old_entry, oldinfo->size, cleanup_entry,
-                         NULL);
+                         net, NULL);
        xt_free_table_info(oldinfo);
        if (copy_to_user(counters_ptr, counters,
                         sizeof(struct xt_counters) * num_counters) != 0)
@@ -1303,7 +1306,7 @@ do_replace(struct net *net, void __user *user, unsigned int len)
                goto free_newinfo;
        }
 
-       ret = translate_table(tmp.name, tmp.valid_hooks,
+       ret = translate_table(net, tmp.name, tmp.valid_hooks,
                              newinfo, loc_cpu_entry, tmp.size, tmp.num_entries,
                              tmp.hook_entry, tmp.underflow);
        if (ret != 0)
@@ -1318,7 +1321,7 @@ do_replace(struct net *net, void __user *user, unsigned int len)
        return 0;
 
  free_newinfo_untrans:
-       IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, NULL);
+       IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, net, NULL);
  free_newinfo:
        xt_free_table_info(newinfo);
        return ret;
@@ -1655,7 +1658,7 @@ compat_copy_entry_from_user(struct compat_ipt_entry *e, void **dstptr,
 }
 
 static int
-compat_check_entry(struct ipt_entry *e, const char *name,
+compat_check_entry(struct ipt_entry *e, struct net *net, const char *name,
                                     unsigned int *i)
 {
        struct xt_mtchk_param mtpar;
@@ -1663,6 +1666,7 @@ compat_check_entry(struct ipt_entry *e, const char *name,
        int ret;
 
        j = 0;
+       mtpar.net       = net;
        mtpar.table     = name;
        mtpar.entryinfo = &e->ip;
        mtpar.hook_mask = e->comefrom;
@@ -1679,12 +1683,13 @@ compat_check_entry(struct ipt_entry *e, const char *name,
        return 0;
 
  cleanup_matches:
-       IPT_MATCH_ITERATE(e, cleanup_match, &j);
+       IPT_MATCH_ITERATE(e, cleanup_match, net, &j);
        return ret;
 }
 
 static int
-translate_compat_table(const char *name,
+translate_compat_table(struct net *net,
+                      const char *name,
                       unsigned int valid_hooks,
                       struct xt_table_info **pinfo,
                       void **pentry0,
@@ -1773,12 +1778,12 @@ translate_compat_table(const char *name,
 
        i = 0;
        ret = IPT_ENTRY_ITERATE(entry1, newinfo->size, compat_check_entry,
-                               name, &i);
+                               net, name, &i);
        if (ret) {
                j -= i;
                COMPAT_IPT_ENTRY_ITERATE_CONTINUE(entry0, newinfo->size, i,
                                                  compat_release_entry, &j);
-               IPT_ENTRY_ITERATE(entry1, newinfo->size, cleanup_entry, &i);
+               IPT_ENTRY_ITERATE(entry1, newinfo->size, cleanup_entry, net, &i);
                xt_free_table_info(newinfo);
                return ret;
        }
@@ -1833,7 +1838,7 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len)
                goto free_newinfo;
        }
 
-       ret = translate_compat_table(tmp.name, tmp.valid_hooks,
+       ret = translate_compat_table(net, tmp.name, tmp.valid_hooks,
                                     &newinfo, &loc_cpu_entry, tmp.size,
                                     tmp.num_entries, tmp.hook_entry,
                                     tmp.underflow);
@@ -1849,7 +1854,7 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len)
        return 0;
 
  free_newinfo_untrans:
-       IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, NULL);
+       IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, net, NULL);
  free_newinfo:
        xt_free_table_info(newinfo);
        return ret;
@@ -2086,7 +2091,7 @@ struct xt_table *ipt_register_table(struct net *net,
        loc_cpu_entry = newinfo->entries[raw_smp_processor_id()];
        memcpy(loc_cpu_entry, repl->entries, repl->size);
 
-       ret = translate_table(table->name, table->valid_hooks,
+       ret = translate_table(net, table->name, table->valid_hooks,
                              newinfo, loc_cpu_entry, repl->size,
                              repl->num_entries,
                              repl->hook_entry,
@@ -2108,7 +2113,7 @@ out:
        return ERR_PTR(ret);
 }
 
-void ipt_unregister_table(struct xt_table *table)
+void ipt_unregister_table(struct net *net, struct xt_table *table)
 {
        struct xt_table_info *private;
        void *loc_cpu_entry;
@@ -2118,7 +2123,7 @@ void ipt_unregister_table(struct xt_table *table)
 
        /* Decrease module usage counts and free resources */
        loc_cpu_entry = private->entries[raw_smp_processor_id()];
-       IPT_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, NULL);
+       IPT_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, net, NULL);
        if (private->number > private->initial_entries)
                module_put(table_owner);
        xt_free_table_info(private);