helpers.h

   1 /*
   2  * firewall3 - 3rd OpenWrt UCI firewall implementation
   3  *
   4  *   Copyright (C) 2018 Jo-Philipp Wich <jo@mein.io>
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #ifndef __FW3_HELPERS_H
  20 #define __FW3_HELPERS_H
  21
  22 #include "options.h"
  23 #include "utils.h"
  24 #include "iptables.h"
  25
  26
  27 extern const struct fw3_option fw3_cthelper_opts[];
  28
  29 void
  30 fw3_load_cthelpers(struct fw3_state *state, struct uci_package *p);
  31
  32 struct fw3_cthelper *
  33 fw3_lookup_cthelper(struct fw3_state *state, const char *name);
  34
  35 struct fw3_cthelper *
  36 fw3_lookup_cthelper_by_proto_port(struct fw3_state *state,
  37                                   struct fw3_protocol *proto,
  38                                   struct fw3_port *port);
  39
  40 void
  41 fw3_print_cthelpers(struct fw3_ipt_handle *handle, struct fw3_state *state,
  42                     struct fw3_zone *zone);
  43
  44 bool
  45 fw3_cthelper_check_proto(const struct fw3_cthelper *h, const struct fw3_protocol *proto);
  46
  47 static inline void fw3_free_cthelper(struct fw3_cthelper *helper)
  48 {
  49         list_del(&helper->list);
  50         fw3_free_object(helper, fw3_cthelper_opts);
  51 }
  52
  53 #endif