goto err_hook;
}
}
- if (!n)
- return -EINVAL;
return 0;
hook_list);
if (err < 0)
return err;
+
+ if (list_empty(hook_list))
+ return -EINVAL;
} else {
return -EINVAL;
}
return err;
if (!tb[NFTA_FLOWTABLE_HOOK_NUM] ||
- !tb[NFTA_FLOWTABLE_HOOK_PRIORITY] ||
- !tb[NFTA_FLOWTABLE_HOOK_DEVS])
+ !tb[NFTA_FLOWTABLE_HOOK_PRIORITY])
return -EINVAL;
hooknum = ntohl(nla_get_be32(tb[NFTA_FLOWTABLE_HOOK_NUM]));
priority = ntohl(nla_get_be32(tb[NFTA_FLOWTABLE_HOOK_PRIORITY]));
- err = nf_tables_parse_netdev_hooks(ctx->net,
- tb[NFTA_FLOWTABLE_HOOK_DEVS],
- &flowtable_hook->list);
- if (err < 0)
- return err;
+ if (tb[NFTA_FLOWTABLE_HOOK_DEVS]) {
+ err = nf_tables_parse_netdev_hooks(ctx->net,
+ tb[NFTA_FLOWTABLE_HOOK_DEVS],
+ &flowtable_hook->list);
+ if (err < 0)
+ return err;
+ }
flowtable_hook->priority = priority;
flowtable_hook->num = hooknum;