IABSD.fr/src/sbin/unwind/printconf.c

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• Author : otto
  Date : 2019-12-01 14:37:34
  Hash : dd16127b
  Message : Allow forcing specific domains to be resolved by specific resolvers; Handles typical split-horzizon setups. ok florian@

• sbin/unwind/printconf.c

• /*	$OpenBSD: printconf.c,v 1.16 2019/12/01 14:37:34 otto Exp $	*/
  
  /*
   * Copyright (c) 2018 Florian Obser <florian@openbsd.org>
   * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #include <sys/queue.h>
  
  #include <event.h>
  #include <imsg.h>
  #include <stdio.h>
  #include <string.h>
  
  #include "unwind.h"
  
  void
  print_config(struct uw_conf *conf)
  {
  	struct uw_forwarder	*uw_forwarder;
  	int			 i;
  	enum uw_resolver_type	 j;
  
  	if (conf->res_pref.len > 0) {
  		printf("preference {");
  		for (i = 0; i < conf->res_pref.len; i++) {
  			printf(" %s",
  			    uw_resolver_type_str[conf->res_pref.types[i]]);
  		}
  		printf(" }\n");
  	}
  
  	if (!TAILQ_EMPTY(&conf->uw_forwarder_list) ||
  	    !TAILQ_EMPTY(&conf->uw_dot_forwarder_list)) {
  		printf("forwarder {\n");
  		TAILQ_FOREACH(uw_forwarder, &conf->uw_forwarder_list, entry) {
  			printf("\t");
  			printf("%s", uw_forwarder->ip);
  			if (uw_forwarder->port != 53)
  				printf(" port %d", uw_forwarder->port);
  			printf("\n");
  		}
  		TAILQ_FOREACH(uw_forwarder, &conf->uw_dot_forwarder_list,
  		    entry) {
  			printf("\t");
  			printf("%s", uw_forwarder->ip);
  			if (uw_forwarder->port != 853)
  				printf(" port %d", uw_forwarder->port);
  			if (uw_forwarder->auth_name[0] != '\0')
  				printf(" authentication name %s",
  				    uw_forwarder->auth_name);
  			printf(" DoT\n");
  		}
  		printf("}\n");
  	}
  
  	if (conf->blocklist_file != NULL)
  		printf("block list \"%s\"%s\n", conf->blocklist_file,
  		    conf->blocklist_log ? " log" : "");
  	for (j = 0; j < UW_RES_NONE; j++) {
  		struct force_tree_entry	*e;
  		int			 empty = 1;
  
  		RB_FOREACH(e, force_tree, &conf->force) {
  			if (e->type != j || e->acceptbogus)
  				continue;
  			empty = 0;
  			break;
  		}
  		if (!empty) {
  
  			printf("force %s {", uw_resolver_type_str[j]);
  			RB_FOREACH(e, force_tree, &conf->force) {
  				if (e->type != j || e->acceptbogus)
  					continue;
  				printf("\n\t%s", e->domain);
  			}
  			printf("\n}\n");
  		}
  
  		empty = 1;
  		RB_FOREACH(e, force_tree, &conf->force) {
  			if (e->type != j || !e->acceptbogus)
  				continue;
  			empty = 0;
  			break;
  		}
  		if (!empty) {
  
  			printf("force accept bogus %s {",
  			    uw_resolver_type_str[j]);
  			RB_FOREACH(e, force_tree, &conf->force) {
  				if (e->type != j || !e->acceptbogus)
  					continue;
  				printf("\n\t%s", e->domain);
  			}
  			printf("\n}\n");
  		}
  	}
  }