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Diffstat (limited to 'src/lib/yang/translator_host.cc')
| -rw-r--r-- | src/lib/yang/translator_host.cc | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/lib/yang/translator_host.cc b/src/lib/yang/translator_host.cc new file mode 100644 index 0000000..7aa6fa4 --- /dev/null +++ b/src/lib/yang/translator_host.cc @@ -0,0 +1,215 @@ +// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC") +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#include <config.h> + +#include <yang/translator_host.h> +#include <yang/yang_models.h> + +#include <sstream> + +using namespace std; +using namespace isc::data; +using namespace libyang; +using namespace sysrepo; + +namespace isc { +namespace yang { + +TranslatorHost::TranslatorHost(Session session, const string& model) + : Translator(session, model), + TranslatorOptionData(session, model), + TranslatorOptionDataList(session, model) { +} + +ElementPtr +TranslatorHost::getHost(DataNode const& data_node) { + try { + if ((model_ == KEA_DHCP4_SERVER) || + (model_ == KEA_DHCP6_SERVER)) { + return (getHostKea(data_node)); + } + } catch (Error const& ex) { + isc_throw(NetconfError, + "getting host reservation:" + << ex.what()); + } + isc_throw(NotImplemented, + "getHost not implemented for the model: " << model_); +} + +ElementPtr +TranslatorHost::getHostFromAbsoluteXpath(string const& xpath) { + try { + return getHost(findXPath(xpath)); + } catch (NetconfError const&) { + return ElementPtr(); + } +} + +ElementPtr +TranslatorHost::getHostKea(DataNode const& data_node) { + ConstElementPtr id_type = getItem(data_node, "identifier-type"); + ConstElementPtr id = getItem(data_node, "identifier"); + if (!id_type || !id) { + isc_throw(MissingNode, "getHostKea requires both identifier and identifier-type"); + } + ElementPtr result = Element::createMap(); + result->set(id_type->stringValue(), id); + + checkAndGetLeaf(result, data_node, "client-classes"); + checkAndGetLeaf(result, data_node, "hostname"); + + checkAndGetAndJsonifyLeaf(result, data_node, "user-context"); + + ConstElementPtr options = getOptionDataList(data_node); + if (options) { + result->set("option-data", options); + } + + if (model_ == KEA_DHCP4_SERVER) { + checkAndGetLeaf(result, data_node, "boot-file-name"); + checkAndGetLeaf(result, data_node, "ip-address"); + checkAndGetLeaf(result, data_node, "next-server"); + checkAndGetLeaf(result, data_node, "server-hostname"); + } else { + checkAndGetLeaf(result, data_node, "ip-addresses"); + checkAndGetLeaf(result, data_node, "prefixes"); + } + + return (result->empty() ? ElementPtr() : result); +} + +void +TranslatorHost::setHost(string const& xpath, ConstElementPtr elem) { + try { + if ((model_ == KEA_DHCP4_SERVER) || + (model_ == KEA_DHCP6_SERVER)) { + setHostKea(xpath, elem); + } else { + isc_throw(NotImplemented, + "setHost not implemented for the model: " << model_); + } + } catch (Error const& ex) { + isc_throw(NetconfError, + "setting host reservation '" << elem->str() + << "' : " << ex.what()); + } +} + +void +TranslatorHost::setHostKea(string const& xpath, ConstElementPtr elem) { + // Skip keys "identifier" and "identifier-type". + + checkAndSetLeaf(elem, xpath, "hostname", LeafBaseType::String); + + checkAndSetLeafList(elem, xpath, "client-classes", LeafBaseType::String); + + ConstElementPtr options = elem->get("option-data"); + if (options && !options->empty()) { + setOptionDataList(xpath, options); + } + + if (model_ == KEA_DHCP4_SERVER) { + checkAndSetLeaf(elem, xpath, "boot-file-name", LeafBaseType::String); + checkAndSetLeaf(elem, xpath, "ip-address", LeafBaseType::String); + checkAndSetLeaf(elem, xpath, "next-server", LeafBaseType::String); + checkAndSetLeaf(elem, xpath, "server-hostname", LeafBaseType::String); + } else { + checkAndSetLeafList(elem, xpath, "ip-addresses", LeafBaseType::String); + checkAndSetLeafList(elem, xpath, "prefixes", LeafBaseType::String); + } + + // User context is supported in both kea-dhcp4-server and kea-dhcp6-server. + checkAndSetUserContext(elem, xpath); +} + +TranslatorHosts::TranslatorHosts(Session session, const string& model) + : Translator(session, model), + TranslatorOptionData(session, model), + TranslatorOptionDataList(session, model), + TranslatorHost(session, model) { +} + +ElementPtr +TranslatorHosts::getHosts(DataNode const& data_node) { + return getList<TranslatorHost>(data_node, "host", *this, + &TranslatorHost::getHost); +} + +ElementPtr +TranslatorHosts::getHostsFromAbsoluteXpath(string const& xpath) { + try { + return getHosts(findXPath(xpath)); + } catch (NetconfError const&) { + return ElementPtr(); + } +} + +void +TranslatorHosts::setHosts(string const& xpath, ConstElementPtr elem) { + try { + if ((model_ == KEA_DHCP4_SERVER) || + (model_ == KEA_DHCP6_SERVER)) { + setHostsKea(xpath, elem); + } else { + isc_throw(NotImplemented, + "setHosts not implemented for the model: " << model_); + } + } catch (Error const& ex) { + isc_throw(NetconfError, + "setting host reservations '" << elem->str() + << "' : " << ex.what()); + } +} + +void +TranslatorHosts::setHostsKea(string const& xpath, ConstElementPtr elem) { + for (size_t i = 0; i < elem->size(); ++i) { + string id_type = "unknown"; + ElementPtr host = elem->getNonConst(i); + ConstElementPtr id = host->get("hw-address"); + if (id) { + id_type = "hw-address"; + goto found; + } + id = host->get("duid"); + if (id) { + id_type = "duid"; + goto found; + } + if (model_ == KEA_DHCP4_SERVER) { + id = host->get("circuit-id"); + if (id) { + id_type = "circuit-id"; + goto found; + } + id = host->get("client-id"); + if (id) { + id_type = "client-id"; + goto found; + } + } + id = host->get("flex-id"); + if (id) { + id_type = "flex-id"; + goto found; + } + + found: + if (id_type == "unknown") { + isc_throw(BadValue, "getHosts: can't find the identifier type in " + << host->str()); + } + ostringstream key; + key << xpath << "/host[identifier-type='" << id_type + << "'][identifier='" << id->stringValue() << "']"; + setHost(key.str(), host); + } +} + +} // namespace yang +} // namespace isc |