netfilter: xtables: add struct xt_mtchk_param::net
Some complex match modules (like xt_hashlimit/xt_recent) want netns
information at constructor and destructor time. We propably can play
games at match destruction time, because netns can be passed in object,
but I think it's cleaner to explicitly pass netns.
Add ->net, make sure it's set from ebtables/iptables/ip6tables code.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index bd1c654..c77bab9 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -619,7 +619,9 @@
}
static inline int
-ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
+ebt_check_entry(struct ebt_entry *e,
+ struct net *net,
+ struct ebt_table_info *newinfo,
const char *name, unsigned int *cnt,
struct ebt_cl_stack *cl_s, unsigned int udc_cnt)
{
@@ -671,6 +673,7 @@
}
i = 0;
+ mtpar.net = net;
mtpar.table = tgpar.table = name;
mtpar.entryinfo = tgpar.entryinfo = e;
mtpar.hook_mask = tgpar.hook_mask = hookmask;
@@ -808,7 +811,8 @@
}
/* do the parsing of the table/chains/entries/matches/watchers/targets, heh */
-static int translate_table(char *name, struct ebt_table_info *newinfo)
+static int translate_table(struct net *net, char *name,
+ struct ebt_table_info *newinfo)
{
unsigned int i, j, k, udc_cnt;
int ret;
@@ -917,7 +921,7 @@
/* used to know what we need to clean up if something goes wrong */
i = 0;
ret = EBT_ENTRY_ITERATE(newinfo->entries, newinfo->entries_size,
- ebt_check_entry, newinfo, name, &i, cl_s, udc_cnt);
+ ebt_check_entry, net, newinfo, name, &i, cl_s, udc_cnt);
if (ret != 0) {
EBT_ENTRY_ITERATE(newinfo->entries, newinfo->entries_size,
ebt_cleanup_entry, &i);
@@ -1017,7 +1021,7 @@
if (ret != 0)
goto free_counterstmp;
- ret = translate_table(tmp.name, newinfo);
+ ret = translate_table(net, tmp.name, newinfo);
if (ret != 0)
goto free_counterstmp;
@@ -1154,7 +1158,7 @@
newinfo->hook_entry[i] = p +
((char *)repl->hook_entry[i] - repl->entries);
}
- ret = translate_table(repl->name, newinfo);
+ ret = translate_table(net, repl->name, newinfo);
if (ret != 0) {
BUGPRINT("Translate_table failed\n");
goto free_chainstack;