diff options
Diffstat (limited to 'src/libstrongswan/plugins/unbound')
| -rw-r--r-- | src/libstrongswan/plugins/unbound/Makefile.am | 20 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/Makefile.in | 661 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/unbound_plugin.c | 66 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/unbound_plugin.h | 42 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/unbound_resolver.c | 143 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/unbound_resolver.h | 29 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/unbound_response.c | 259 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/unbound_response.h | 51 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/unbound_rr.c | 164 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/unbound/unbound_rr.h | 48 |
10 files changed, 1483 insertions, 0 deletions
diff --git a/src/libstrongswan/plugins/unbound/Makefile.am b/src/libstrongswan/plugins/unbound/Makefile.am new file mode 100644 index 000000000..efb313407 --- /dev/null +++ b/src/libstrongswan/plugins/unbound/Makefile.am @@ -0,0 +1,20 @@ + +INCLUDES = -I$(top_srcdir)/src/libstrongswan + +AM_CFLAGS = -rdynamic -DIPSEC_CONFDIR=\"${sysconfdir}\" + + +if MONOLITHIC +noinst_LTLIBRARIES = libstrongswan-unbound.la +else +plugin_LTLIBRARIES = libstrongswan-unbound.la +endif + +libstrongswan_unbound_la_SOURCES = \ + unbound_plugin.h unbound_plugin.c \ + unbound_resolver.c unbound_resolver.h \ + unbound_rr.h unbound_rr.c \ + unbound_response.h unbound_response.c + +libstrongswan_unbound_la_LDFLAGS = -module -avoid-version +libstrongswan_unbound_la_LIBADD = -lunbound -lldns diff --git a/src/libstrongswan/plugins/unbound/Makefile.in b/src/libstrongswan/plugins/unbound/Makefile.in new file mode 100644 index 000000000..f1a37bb03 --- /dev/null +++ b/src/libstrongswan/plugins/unbound/Makefile.in @@ -0,0 +1,661 @@ +# Makefile.in generated by automake 1.11.6 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software +# Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +VPATH = @srcdir@ +am__make_dryrun = \ + { \ + am__dry=no; \ + case $$MAKEFLAGS in \ + *\\[\ \ ]*) \ + echo 'am--echo: ; @echo "AM" OK' | $(MAKE) -f - 2>/dev/null \ + | grep '^AM OK$$' >/dev/null || am__dry=yes;; \ + *) \ + for am__flg in $$MAKEFLAGS; do \ + case $$am__flg in \ + *=*|--*) ;; \ + 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b/src/libstrongswan/plugins/unbound/unbound_plugin.c @@ -0,0 +1,66 @@ +/* + * Copyright (C) 2011-2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "unbound_plugin.h" + +#include <library.h> +#include "unbound_resolver.h" + +typedef struct private_unbound_plugin_t private_unbound_plugin_t; + +/** + * private data of unbound_plugin + */ +struct private_unbound_plugin_t { + + /** + * public functions + */ + unbound_plugin_t public; +}; + +METHOD(plugin_t, get_name, char*, + private_unbound_plugin_t *this) +{ + return "unbound"; +} + +METHOD(plugin_t, destroy, void, + private_unbound_plugin_t *this) +{ + lib->resolver->remove_resolver(lib->resolver, unbound_resolver_create); + free(this); +} + +/* + * see header file + */ +plugin_t *unbound_plugin_create() +{ + private_unbound_plugin_t *this; + + INIT(this, + .public = { + .plugin = { + .get_name = _get_name, + .destroy = _destroy, + }, + }, + ); + + lib->resolver->add_resolver(lib->resolver, unbound_resolver_create); + + return &this->public.plugin; +} diff --git a/src/libstrongswan/plugins/unbound/unbound_plugin.h b/src/libstrongswan/plugins/unbound/unbound_plugin.h new file mode 100644 index 000000000..1f0d36454 --- /dev/null +++ b/src/libstrongswan/plugins/unbound/unbound_plugin.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2011-2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup unbound_p unbound + * @ingroup plugins + * + * @defgroup unbound_plugin unbound_plugin + * @{ @ingroup unbound_p + */ + +#ifndef unbound_PLUGIN_H_ +#define unbound_PLUGIN_H_ + +#include <plugins/plugin.h> + +typedef struct unbound_plugin_t unbound_plugin_t; + +/** + * Plugin implementing the resolver interface using the libunbound DNS library. + */ +struct unbound_plugin_t { + + /** + * implements plugin interface + */ + plugin_t plugin; +}; + +#endif /** unbound_PLUGIN_H_ @}*/ diff --git a/src/libstrongswan/plugins/unbound/unbound_resolver.c b/src/libstrongswan/plugins/unbound/unbound_resolver.c new file mode 100644 index 000000000..44a2c764b --- /dev/null +++ b/src/libstrongswan/plugins/unbound/unbound_resolver.c @@ -0,0 +1,143 @@ +/* + * Copyright (C) 2011-2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include <unbound.h> +#include <errno.h> +#include <ldns/ldns.h> +#include <string.h> + +#include <library.h> +#include <utils/debug.h> + +#include "unbound_resolver.h" +#include "unbound_response.h" + +/* DNS resolver configuration and DNSSEC trust anchors */ +#define RESOLV_CONF_FILE "/etc/resolv.conf" +#define TRUST_ANCHOR_FILE IPSEC_CONFDIR "/ipsec.d/dnssec.keys" + +typedef struct private_resolver_t private_resolver_t; + +/** + * private data of a unbound_resolver_t object. + */ +struct private_resolver_t { + + /** + * Public data + */ + resolver_t public; + + /** + * private unbound resolver handle (unbound context) + */ + struct ub_ctx *ctx; +}; + +/** + * query method implementation + */ +METHOD(resolver_t, query, resolver_response_t*, + private_resolver_t *this, char *domain, rr_class_t rr_class, + rr_type_t rr_type) +{ + unbound_response_t *response = NULL; + struct ub_result *result = NULL; + int ub_retval; + + ub_retval = ub_resolve(this->ctx, domain, rr_type, rr_class, &result); + if (ub_retval) + { + DBG1(DBG_LIB, "unbound resolver error: %s", ub_strerror(ub_retval)); + ub_resolve_free(result); + return NULL; + } + + response = unbound_response_create_frm_libub_response(result); + if (!response) + { + DBG1(DBG_LIB, "unbound resolver failed to create response"); + ub_resolve_free(result); + return NULL; + } + ub_resolve_free(result); + + return (resolver_response_t*)response; +} + +/** + * destroy method implementation + */ +METHOD(resolver_t, destroy, void, + private_resolver_t *this) +{ + ub_ctx_delete(this->ctx); + free(this); +} + +/* + * Described in header. + */ +resolver_t *unbound_resolver_create(void) +{ + private_resolver_t *this; + int ub_retval = 0; + char *resolv_conf_file; + char *trust_anchor_file; + + resolv_conf_file = lib->settings->get_str(lib->settings, + "libstrongswan.plugins.unbound.resolv_conf", + RESOLV_CONF_FILE); + + trust_anchor_file = lib->settings->get_str(lib->settings, + "libstrongswan.plugins.unbound.trust_anchors", + TRUST_ANCHOR_FILE); + + INIT(this, + .public = { + .query = _query, + .destroy = _destroy, + }, + ); + + this->ctx = ub_ctx_create(); + if (!this->ctx) + { + DBG1(DBG_LIB, "failed to create unbound resolver context"); + destroy(this); + return NULL; + } + + DBG1(DBG_CFG, "loading unbound resolver config from '%s'", resolv_conf_file); + ub_retval = ub_ctx_resolvconf(this->ctx, resolv_conf_file); + if (ub_retval) + { + DBG1(DBG_CFG, "failed to read the resolver config: %s (%s)", + ub_strerror(ub_retval), strerror(errno)); + destroy(this); + return NULL; + } + + DBG1(DBG_CFG, "loading unbound trust anchors from '%s'", trust_anchor_file); + ub_retval = ub_ctx_add_ta_file(this->ctx, trust_anchor_file); + if (ub_retval) + { + DBG1(DBG_CFG, "failed to load trust anchors: %s (%s)", + ub_strerror(ub_retval), strerror(errno)); + } + + return &this->public; +} + diff --git a/src/libstrongswan/plugins/unbound/unbound_resolver.h b/src/libstrongswan/plugins/unbound/unbound_resolver.h new file mode 100644 index 000000000..818a717b8 --- /dev/null +++ b/src/libstrongswan/plugins/unbound/unbound_resolver.h @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2011-2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup unbound_resolver unbound_resolver + * @{ @ingroup unbound_p + */ + +#ifndef unbound_RESOLVER_H_ +#define unbound_RESOLVER_H_ + +/** + * Create a resolver_t instance. + */ +resolver_t *unbound_resolver_create(void); + +#endif /** LIBunbound_RESOLVER_H_ @}*/ diff --git a/src/libstrongswan/plugins/unbound/unbound_response.c b/src/libstrongswan/plugins/unbound/unbound_response.c new file mode 100644 index 000000000..6f6c25e89 --- /dev/null +++ b/src/libstrongswan/plugins/unbound/unbound_response.c @@ -0,0 +1,259 @@ +/* + * Copyright (C) 2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include <resolver/resolver_response.h> +#include <resolver/rr.h> +#include "unbound_rr.h" +#include "unbound_response.h" + +#include <library.h> +#include <utils/debug.h> + +#include <unbound.h> +#include <ldns/ldns.h> + +typedef struct private_unbound_response_t private_unbound_response_t; + +/** + * private data of an unbound_response_t object. + */ +struct private_unbound_response_t { + + /** + * Public data + */ + unbound_response_t public; + + /** + * Original question string + */ + char* query_name; + + /** + * Canonical name of the response + */ + char* canon_name; + + /** + * Are the some RRs in the RRset of this response? + */ + bool has_data; + + /* + * Does the queried name exist? + */ + bool query_name_exist; + + /** + * DNSSEC security state + */ + dnssec_status_t security_state; + + /** + * RRset + */ + rr_set_t *rr_set; +}; + +METHOD(resolver_response_t, get_query_name, char*, + private_unbound_response_t *this) +{ + return this->query_name; +} + +METHOD(resolver_response_t, get_canon_name, char*, + private_unbound_response_t *this) +{ + return this->canon_name; +} + +METHOD(resolver_response_t, has_data, bool, + private_unbound_response_t *this) +{ + return this->has_data; +} + +METHOD(resolver_response_t, query_name_exist, bool, + private_unbound_response_t *this) +{ + return this->query_name_exist; +} + +METHOD(resolver_response_t, get_security_state, dnssec_status_t, + private_unbound_response_t *this) +{ + return this->security_state; +} + +METHOD(resolver_response_t, get_rr_set, rr_set_t*, + private_unbound_response_t *this) +{ + return this->rr_set; +} + +METHOD(resolver_response_t, destroy, void, + private_unbound_response_t *this) +{ + free(this->query_name); + free(this->canon_name); + DESTROY_IF(this->rr_set); + free(this); +} + +/* + * Described in header. + */ +unbound_response_t *unbound_response_create_frm_libub_response( + struct ub_result *libub_response) +{ + private_unbound_response_t *this = NULL; + + INIT(this, + .public = { + .interface = { + .get_query_name = _get_query_name, + .get_canon_name = _get_canon_name, + .has_data = _has_data, + .query_name_exist = _query_name_exist, + .get_security_state = _get_security_state, + .get_rr_set = _get_rr_set, + .destroy = _destroy, + }, + }, + ); + + this->query_name = strdup(libub_response->qname); + + if (libub_response->canonname) + { + this->canon_name = strdup(libub_response->canonname); + } + + this->has_data = libub_response->havedata; + + this->query_name_exist = !(libub_response->nxdomain); + + if (libub_response->secure) + { + this->security_state = SECURE; + } + else if (libub_response->bogus) + { + this->security_state = BOGUS; + } + else + { + this->security_state = INDETERMINATE; + } + + /** + * Create RRset + */ + if (this->query_name_exist && this->has_data) + { + ldns_pkt *dns_pkt = NULL; + ldns_rr_list *orig_rr_list = NULL; + size_t orig_rr_count; + ldns_rr *orig_rr = NULL; + ldns_rdf *orig_rdf = NULL; + ldns_status status; + linked_list_t *rr_list = NULL, *rrsig_list = NULL; + unbound_rr_t *rr = NULL; + int i; + + /**Parse the received DNS packet using the ldns library */ + status = ldns_wire2pkt(&dns_pkt, libub_response->answer_packet, + libub_response->answer_len); + + if (status != LDNS_STATUS_OK) + { + DBG1(DBG_LIB, "failed to parse DNS packet"); + destroy(this); + return NULL; + } + + /* Create a list with the queried RRs. If there are corresponding RRSIGs + * create also a list with these. + */ + rr_list = linked_list_create(); + + orig_rr_list = ldns_pkt_get_section_clone(dns_pkt, LDNS_SECTION_ANSWER); + orig_rr_count = ldns_rr_list_rr_count(orig_rr_list); + + for (i = 0; i < orig_rr_count; i++) + { + orig_rr = ldns_rr_list_rr(orig_rr_list, i); + + if (ldns_rr_get_type(orig_rr) == libub_response->qtype && + ldns_rr_get_class(orig_rr) == libub_response->qclass) + { + /* RR is part of the queried RRset. + * => add it to the list of Resource Records. + */ + rr = unbound_rr_create_frm_ldns_rr(orig_rr); + if (rr) + { + rr_list->insert_last(rr_list, rr); + } + else + { + DBG1(DBG_LIB, "failed to create RR"); + } + } + + if (ldns_rr_get_type(orig_rr) == LDNS_RR_TYPE_RRSIG) + { + orig_rdf = ldns_rr_rrsig_typecovered(orig_rr); + if (!orig_rdf) + { + DBG1(DBG_LIB, "failed to get the type covered by an RRSIG"); + } + else if (ldns_rdf2native_int16(orig_rdf) == libub_response->qtype) + { + /* The current RR represent a signature (RRSIG) + * which belongs to the queried RRset. + * => add it to the list of signatures. + */ + rr = unbound_rr_create_frm_ldns_rr(orig_rr); + if (rr) + { + if (!rrsig_list) + { + rrsig_list = linked_list_create(); + } + rrsig_list->insert_last(rrsig_list, rr); + } + else + { + DBG1(DBG_LIB, "failed to create RRSIG"); + } + } + else + { + DBG1(DBG_LIB, "failed to determine the RR type " + "covered by RRSIG RR"); + } + } + } + /** + * Create the RRset for which the query was performed. + */ + this->rr_set = rr_set_create(rr_list, rrsig_list); + + ldns_pkt_free(dns_pkt); + ldns_rr_list_free(orig_rr_list); + } + return &this->public; +} diff --git a/src/libstrongswan/plugins/unbound/unbound_response.h b/src/libstrongswan/plugins/unbound/unbound_response.h new file mode 100644 index 000000000..c82f39d45 --- /dev/null +++ b/src/libstrongswan/plugins/unbound/unbound_response.h @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup unbound_response unbound_response + * @{ @ingroup unbound_p + */ + +#ifndef UNBOUND_RESPONSE_H_ +#define UNBOUND_RESPONSE_H_ + +#include <resolver/resolver_response.h> +#include <unbound.h> + +typedef struct unbound_response_t unbound_response_t; + +/** + * Implementation of the resolver_response interface using libunbound. + * + */ +struct unbound_response_t { + + /** + * Implements the resolver_response interface + */ + resolver_response_t interface; +}; + +/** + * Create an unbound_response instance from a response of the unbound library. + * + * @param response a response of the unbound library + * @return an unbound_response conforming to the resolver_response + * interface, or NULL on failure + */ +unbound_response_t *unbound_response_create_frm_libub_response( + struct ub_result *response); + +#endif /** UNBOUND_RESPONSE_H_ @}*/ diff --git a/src/libstrongswan/plugins/unbound/unbound_rr.c b/src/libstrongswan/plugins/unbound/unbound_rr.c new file mode 100644 index 000000000..97c3b1933 --- /dev/null +++ b/src/libstrongswan/plugins/unbound/unbound_rr.c @@ -0,0 +1,164 @@ +/* + * Copyright (C) 2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include <resolver/rr.h> + +#include <library.h> +#include <utils/debug.h> + +#include <stdlib.h> +#include <string.h> + +#include "unbound_rr.h" + +typedef struct private_unbound_rr_t private_unbound_rr_t; + +/** + * private data of an unbound_rr_t object. + */ +struct private_unbound_rr_t { + + /** + * Public data + */ + unbound_rr_t public; + + /** + * Owner name + */ + char* name; + + /** + * Type + */ + rr_type_t type; + + /** + * Class + */ + rr_class_t class; + + /** + * TTL + */ + uint32_t ttl; + + /** + * Size of the rdata field in octets + */ + uint16_t size; + + /** + * RDATA field (array of bytes in network order) + */ + u_char *rdata; +}; + +METHOD(rr_t, get_name, char *, + private_unbound_rr_t *this) +{ + return this->name; +} + +METHOD(rr_t, get_type, rr_type_t, + private_unbound_rr_t *this) +{ + return this->type; +} + +METHOD(rr_t, get_class, rr_class_t, + private_unbound_rr_t *this) +{ + return this->class; +} + +METHOD(rr_t, get_ttl, uint32_t, + private_unbound_rr_t *this) +{ + return this->ttl; +} + +METHOD(rr_t, get_rdata, chunk_t, + private_unbound_rr_t *this) +{ + return chunk_create(this->rdata, this->size); +} + +METHOD(rr_t, destroy, void, + private_unbound_rr_t *this) +{ + free(this->name); + free(this->rdata); + free(this); +} + +/* + * Described in header. + */ +unbound_rr_t *unbound_rr_create_frm_ldns_rr(ldns_rr *rr) +{ + private_unbound_rr_t *this; + ldns_status status; + ldns_buffer *buf; + int i; + + INIT(this, + .public = { + .interface = { + .get_name = _get_name, + .get_type = _get_type, + .get_class = _get_class, + .get_ttl = _get_ttl, + .get_rdata = _get_rdata, + .destroy = _destroy, + }, + }, + ); + + this->name = ldns_rdf2str(ldns_rr_owner(rr)); + if (!this->name) + { + DBG1(DBG_LIB, "failed to parse the owner name of a DNS RR"); + _destroy(this); + return NULL; + } + + this->type = ldns_rr_get_type(rr); + this->class = ldns_rr_get_class(rr); + this->ttl = ldns_rr_ttl(rr); + for(i = 0; i < ldns_rr_rd_count(rr); i++) + { + this->size += ldns_rdf_size(ldns_rr_rdf(rr, i)); + } + + /** + * The ldns library splits the RDATA field of a RR in various rdf. + * Here we reassemble these rdf to get the RDATA field of the RR. + */ + buf = ldns_buffer_new(LDNS_MIN_BUFLEN); + /* The buffer will be resized automatically by ldns_rr_rdata2buffer_wire() */ + status = ldns_rr_rdata2buffer_wire(buf, rr); + + if (status != LDNS_STATUS_OK) + { + DBG1(DBG_LIB, "failed to get the RDATA field of a DNS RR"); + _destroy(this); + return NULL; + } + + this->rdata = ldns_buffer_export(buf); + + return &this->public; +} diff --git a/src/libstrongswan/plugins/unbound/unbound_rr.h b/src/libstrongswan/plugins/unbound/unbound_rr.h new file mode 100644 index 000000000..d7c114f86 --- /dev/null +++ b/src/libstrongswan/plugins/unbound/unbound_rr.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup unbound_rr unbound_rr + * @{ @ingroup unbound_p + */ + +#ifndef UNBOUND_RR_H_ +#define UNBOUND_RR_H_ + +#include <resolver/rr.h> +#include <ldns/ldns.h> + +typedef struct unbound_rr_t unbound_rr_t; + +/** + * Implementation of the Resource Record interface using libunbound and libldns. + */ +struct unbound_rr_t { + + /** + * Implements the Resource Record interface + */ + rr_t interface; +}; + +/** + * Create an unbound_rr instance from a Resource Record given by + * a ldns_struct_rr from the ldns library. + * + * @return Resource Record, NULL on error + */ +unbound_rr_t *unbound_rr_create_frm_ldns_rr(ldns_rr *rr); + +#endif /** UNBOUND_RR_H_ @}*/ |