libs/rpcd-mod-rrdns/src/rrdns.h

   1 /*
   2  * rrdns - Rapid Reverse DNS lookup plugin for the UBUS RPC server
   3  *
   4  *   Copyright (C) 2016-2017 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 #include <libubus.h>
  20 #include <libubox/avl.h>
  21 #include <libubox/uloop.h>
  22
  23 #define RRDNS_MAX_TIMEOUT 5000
  24 #define RRDNS_DEF_TIMEOUT 250
  25
  26 #define RRDNS_MAX_LIMIT 1000
  27 #define RRDNS_DEF_LIMIT 10
  28
  29
  30 struct rrdns_request {
  31         struct avl_node by_id;
  32         struct avl_node by_addr;
  33         uint16_t id;
  34         uint16_t family;
  35         union {
  36                 struct in_addr in;
  37                 struct in6_addr in6;
  38         } addr;
  39 };
  40
  41 struct rrdns_context {
  42         struct ubus_context *context;
  43         struct ubus_request_data request;
  44         struct uloop_timeout timeout;
  45         struct blob_attr *addr_cur;
  46         int addr_rem;
  47         struct uloop_fd socket;
  48         struct blob_buf blob;
  49         struct avl_tree request_ids;
  50         struct avl_tree request_addrs;
  51 };