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-rw-r--r--iptables/nft.c27
1 files changed, 17 insertions, 10 deletions
diff --git a/iptables/nft.c b/iptables/nft.c
index 469448f4..b4255777 100644
--- a/iptables/nft.c
+++ b/iptables/nft.c
@@ -1295,20 +1295,12 @@ err:
return MNL_CB_OK;
}
-struct nftnl_chain_list *nft_chain_list_get(struct nft_handle *h,
- const char *table)
+static int fetch_chain_cache(struct nft_handle *h)
{
char buf[16536];
struct nlmsghdr *nlh;
- const struct builtin_table *t;
int i, ret;
- t = nft_table_builtin_find(h, table);
- if (!t)
- return NULL;
-
- if (h->table[t->type].chain_cache)
- return h->table[t->type].chain_cache;
retry:
for (i = 0; i < NFT_TABLE_MAX; i++) {
enum nft_table_type type = h->tables[i].type;
@@ -1318,7 +1310,7 @@ retry:
h->table[type].chain_cache = nftnl_chain_list_alloc();
if (!h->table[type].chain_cache)
- return NULL;
+ return -1;
}
nlh = nftnl_chain_nlmsg_build_hdr(buf, NFT_MSG_GETCHAIN, h->family,
@@ -1331,6 +1323,21 @@ retry:
goto retry;
}
+ return ret;
+}
+
+struct nftnl_chain_list *nft_chain_list_get(struct nft_handle *h,
+ const char *table)
+{
+ const struct builtin_table *t;
+
+ t = nft_table_builtin_find(h, table);
+ if (!t)
+ return NULL;
+
+ if (!h->table[t->type].chain_cache)
+ fetch_chain_cache(h);
+
return h->table[t->type].chain_cache;
}