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Code Issues Releases Wiki Activity

[#1163] Checkpoint: updated API

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This commit is contained in:
Francis Dupont
2020-09-01 13:41:04 +02:00
parent 63c2e0d72b
commit f3e8356a41
18 changed files with 1199 additions and 16 deletions
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44
src/lib/dhcpsrv/base_host_data_source.h
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2014-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2014-2020 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
@@ -221,6 +221,48 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size) const = 0;
/// @brief Returns range of hosts.
///
/// This method implements paged browsing of host databases. The
/// parameters specify a page size, an index in sources and the
/// starting host id of the range. If not zero this host id is
/// excluded from the returned range. When a source is exhausted
/// the index is updated. There is no guarantee about the order
/// of returned host reservations, only the sources and
/// reservations from the same source are ordered.
///
/// @param source_index Index of the source.
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Host collection (may be empty).
virtual ConstHostCollection
getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const = 0;
/// @brief Returns range of hosts.
///
/// This method implements paged browsing of host databases. The
/// parameters specify a page size, an index in sources and the
/// starting host id of the range. If not zero this host id is
/// excluded from the returned range. When a source is exhausted
/// the index is updated. There is no guarantee about the order
/// of returned host reservations, only the sources and
/// reservations from the same source are ordered.
///
/// @param source_index Index of the source.
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Host collection (may be empty).
virtual ConstHostCollection
getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const = 0;
/// @brief Returns a collection of hosts using the specified IPv4 address.
///
/// This method may return multiple @c Host objects if they are connected

88
src/lib/dhcpsrv/cfg_hosts.cc
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@@ -1,4 +1,4 @@
// Copyright (C) 2014-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2014-2020 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
@@ -200,6 +200,58 @@ CfgHosts::getPage6(const SubnetID& subnet_id,
return (collection);
}
ConstHostCollection
CfgHosts::getPage4(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Do not issue logging message here because it will be logged by
// the getPageInternal method.
ConstHostCollection collection;
getPageInternal<ConstHostCollection>(lower_host_id,
page_size,
collection);
return (collection);
}
HostCollection
CfgHosts::getPage4(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) {
// Do not issue logging message here because it will be logged by
// the getPageInternal method.
HostCollection collection;
getPageInternal<HostCollection>(lower_host_id,
page_size,
collection);
return (collection);
}
ConstHostCollection
CfgHosts::getPage6(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Do not issue logging message here because it will be logged by
// the getPageInternal method.
ConstHostCollection collection;
getPageInternal<ConstHostCollection>(lower_host_id,
page_size,
collection);
return (collection);
}
HostCollection
CfgHosts::getPage6(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) {
// Do not issue logging message here because it will be logged by
// the getPageInternal method.
HostCollection collection;
getPageInternal<HostCollection>(lower_host_id,
page_size,
collection);
return (collection);
}
ConstHostCollection
CfgHosts::getAll4(const IOAddress& address) const {
// Do not issue logging message here because it will be logged by
@@ -433,6 +485,40 @@ CfgHosts::getAllbyHostnameInternal6(const std::string& hostname,
.arg(storage.size());
}
template<typename Storage>
void
CfgHosts::getPageInternal(uint64_t lower_host_id,
const HostPageSize& page_size,
Storage& storage) const {
LOG_DEBUG(hosts_logger, HOSTS_DBG_TRACE, HOSTS_CFG_GET_ALL);
// Use the host id last index.
const HostContainerIndex4& idx = hosts_.get<4>();
HostContainerIndex4::const_iterator host = idx.lower_bound(lower_host_id);
// Exclude the lower bound id when it is not zero.
if (lower_host_id &&
(host != idx.end()) && ((*host)->getHostId() == lower_host_id)) {
++host;
}
// Return hosts within the page size.
for (; host != idx.end(); ++host) {
LOG_DEBUG(hosts_logger, HOSTS_DBG_TRACE_DETAIL_DATA,
HOSTS_CFG_GET_ALL_HOST)
.arg((*host)->toText());
storage.push_back(*host);
if (storage.size() >= page_size.page_size_) {
break;
}
}
// Log how many hosts have been found.
LOG_DEBUG(hosts_logger, HOSTS_DBG_RESULTS, HOSTS_CFG_GET_ALL_COUNT)
.arg(storage.size());
}
template<typename Storage>
void
CfgHosts::getPageInternal4(const SubnetID& subnet_id,

83
src/lib/dhcpsrv/cfg_hosts.h
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2014-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2014-2020 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
@@ -261,6 +261,70 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size);
/// @brief Returns range of hosts.
///
/// This method returns a page of @c Host objects which represent
/// reservations.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of const @c Host objects (may be empty).
virtual ConstHostCollection
getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns range of hosts.
///
/// This method returns a page of @c Host objects which represent
/// reservations.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of non-const @c Host objects (may be empty).
virtual HostCollection
getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size);
/// @brief Returns range of hosts.
///
/// This method returns a page of @c Host objects which represent
/// reservations.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of const @c Host objects (may be empty).
virtual ConstHostCollection
getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns range of hosts.
///
/// This method returns a page of @c Host objects which represent
/// reservations.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of non-const @c Host objects (may be empty).
virtual HostCollection
getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size);
/// @brief Returns a collection of hosts using the specified IPv4 address.
///
/// This method may return multiple @c Host objects if they are connected
@@ -630,6 +694,23 @@ private:
const HostPageSize& page_size,
Storage& storage) const;
/// @brief Returns a page of @c Host objects.
///
/// This private method is called by the @c CfgHosts::getPage4
/// and @c CfgHosts::getPage6 methods which find the @c Host objects.
/// The retrieved objects are appended to the @c storage container.
///
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
/// @param [out] storage Container to which the retrieved objects are
/// appended.
/// @tparam One of the @c ConstHostCollection of @c HostCollection.
template<typename Storage>
void getPageInternal(uint64_t lower_host_id,
const HostPageSize& page_size,
Storage& storage) const;
/// @brief Returns @c Host objects for the specified IPv4 address.
///
/// This private method is called by the @c CfgHosts::getAll4 methods

422
src/lib/dhcpsrv/cql_host_data_source.cc
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2018-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2018-2020 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2016-2017 Deutsche Telekom AG.
//
// Author: Andrei Pavel <andrei.pavel@qualitance.com>
@@ -369,6 +369,22 @@ public:
// (paging).
static constexpr StatementTag GET_HOST_BY_IPV6_SUBNET_ID_PAGE =
"GET_HOST_BY_IPV6_SUBNET_ID_PAGE";
// Retrieves host information; reservations and options associated
// with it from first host (paging).
static constexpr StatementTag GET_HOST_LIMIT = "GET_HOST_LIMIT";
// Retrieves host information; reservations and options associated
// with it from host (paging).
static constexpr StatementTag GET_HOST_KEY = "GET_HOST_KEY";
// Retrieves host information; reservations and options associated
// with it from next host (paging).
static constexpr StatementTag GET_HOST_NEXT_KEY = "GET_HOST_NEXT_KEY";
// Retrieves host information; reservations and options associated
// with it from host with a limit (paging).
static constexpr StatementTag GET_HOST_PAGE = "GET_HOST_PAGE";
/// @}
/// @brief Cassandra statements
@@ -498,6 +514,10 @@ constexpr StatementTag CqlHostExchange::GET_HOST_BY_IPV4_SUBNET_ID_KEY;
constexpr StatementTag CqlHostExchange::GET_HOST_BY_IPV6_SUBNET_ID_KEY;
constexpr StatementTag CqlHostExchange::GET_HOST_BY_IPV4_SUBNET_ID_PAGE;
constexpr StatementTag CqlHostExchange::GET_HOST_BY_IPV6_SUBNET_ID_PAGE;
constexpr StatementTag CqlHostExchange::GET_HOST_LIMIT;
constexpr StatementTag CqlHostExchange::GET_HOST_NEXT_KEY;
constexpr StatementTag CqlHostExchange::GET_HOST_KEY;
constexpr StatementTag CqlHostExchange::GET_HOST_PAGE;
constexpr StatementTag CqlHostExchange::DELETE_HOST;
StatementMap CqlHostExchange::tagged_statements_ = {
@@ -1342,6 +1362,156 @@ StatementMap CqlHostExchange::tagged_statements_ = {
"ALLOW FILTERING "
}},
{GET_HOST_LIMIT,
{GET_HOST_LIMIT,
"SELECT "
"key, "
"id, "
"host_identifier, "
"host_identifier_type, "
"host_ipv4_subnet_id, "
"host_ipv6_subnet_id, "
"host_ipv4_address, "
"host_ipv4_next_server, "
"host_ipv4_server_hostname, "
"host_ipv4_boot_file_name, "
"auth_key, "
"hostname, "
"user_context, "
"host_ipv4_client_classes, "
"host_ipv6_client_classes, "
"reserved_ipv6_prefix_address, "
"reserved_ipv6_prefix_length, "
"reserved_ipv6_prefix_address_type, "
"iaid, "
"option_universe, "
"option_code, "
"option_value, "
"option_formatted_value, "
"option_space, "
"option_is_persistent, "
"option_client_class, "
"option_subnet_id, "
"option_user_context, "
"option_scope_id "
"FROM hosts "
"LIMIT 1 "
"ALLOW FILTERING "
}},
{GET_HOST_NEXT_KEY,
{GET_HOST_NEXT_KEY,
"SELECT "
"key, "
"id, "
"host_identifier, "
"host_identifier_type, "
"host_ipv4_subnet_id, "
"host_ipv6_subnet_id, "
"host_ipv4_address, "
"host_ipv4_next_server, "
"host_ipv4_server_hostname, "
"host_ipv4_boot_file_name, "
"auth_key, "
"hostname, "
"user_context, "
"host_ipv4_client_classes, "
"host_ipv6_client_classes, "
"reserved_ipv6_prefix_address, "
"reserved_ipv6_prefix_length, "
"reserved_ipv6_prefix_address_type, "
"iaid, "
"option_universe, "
"option_code, "
"option_value, "
"option_formatted_value, "
"option_space, "
"option_is_persistent, "
"option_client_class, "
"option_subnet_id, "
"option_user_context, "
"option_scope_id "
"FROM hosts "
"WHERE TOKEN(key) > TOKEN(?) "
"LIMIT 1 "
"ALLOW FILTERING "
}},
{GET_HOST_KEY,
{GET_HOST_KEY,
"SELECT "
"key, "
"id, "
"host_identifier, "
"host_identifier_type, "
"host_ipv4_subnet_id, "
"host_ipv6_subnet_id, "
"host_ipv4_address, "
"host_ipv4_next_server, "
"host_ipv4_server_hostname, "
"host_ipv4_boot_file_name, "
"auth_key, "
"hostname, "
"user_context, "
"host_ipv4_client_classes, "
"host_ipv6_client_classes, "
"reserved_ipv6_prefix_address, "
"reserved_ipv6_prefix_length, "
"reserved_ipv6_prefix_address_type, "
"iaid, "
"option_universe, "
"option_code, "
"option_value, "
"option_formatted_value, "
"option_space, "
"option_is_persistent, "
"option_client_class, "
"option_subnet_id, "
"option_user_context, "
"option_scope_id "
"FROM hosts "
"WHERE key = ? "
"ALLOW FILTERING "
}},
{GET_HOST_PAGE,
{GET_HOST_PAGE,
"SELECT "
"key, "
"id, "
"host_identifier, "
"host_identifier_type, "
"host_ipv4_subnet_id, "
"host_ipv6_subnet_id, "
"host_ipv4_address, "
"host_ipv4_next_server, "
"host_ipv4_server_hostname, "
"host_ipv4_boot_file_name, "
"auth_key, "
"hostname, "
"user_context, "
"host_ipv4_client_classes, "
"host_ipv6_client_classes, "
"reserved_ipv6_prefix_address, "
"reserved_ipv6_prefix_length, "
"reserved_ipv6_prefix_address_type, "
"iaid, "
"option_universe, "
"option_code, "
"option_value, "
"option_formatted_value, "
"option_space, "
"option_is_persistent, "
"option_client_class, "
"option_subnet_id, "
"option_user_context, "
"option_scope_id "
"FROM hosts "
"WHERE id = ? "
"LIMIT 1 "
"ALLOW FILTERING "
}},
{DELETE_HOST,
{DELETE_HOST,
"DELETE FROM hosts WHERE key = ? AND id = ? "
@@ -2112,6 +2282,28 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Implementation of @ref CqlHostDataSource::getPage4()
///
/// See @ref CqlHostDataSource::getPage4() for parameter details.
///
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
virtual ConstHostCollection
getPage4(uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Implementation of @ref CqlHostDataSource::getPage6()
///
/// See @ref CqlHostDataSource::getPage6() for parameter details.
///
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
virtual ConstHostCollection
getPage6(uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Implementation of @ref CqlHostDataSource::getAll4()
///
/// See @ref CqlHostDataSource::getAll4() for parameter details.
@@ -2221,6 +2413,26 @@ protected:
uint64_t lower_host_id,
size_t count = 0) const;
/// @brief Retrieves a page of hosts.
///
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param count the size of the page
///
/// @return a collection of hosts containing one or more hosts
virtual ConstHostCollection getHostCollectionPage4(uint64_t lower_host_id,
size_t count = 0) const;
/// @brief Retrieves a page of hosts.
///
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param count the size of the page
///
/// @return a collection of hosts containing one or more hosts
virtual ConstHostCollection getHostCollectionPage6(uint64_t lower_host_id,
size_t count = 0) const;
/// @brief Retrieves a host by key.
///
/// @param key identifier of the host
@@ -2235,6 +2447,13 @@ protected:
/// @return a host for the specific key
virtual ConstHostPtr getHostByKey6(uint64_t key) const;
/// @brief Retrieves a host by key.
///
/// @param key identifier of the host
///
/// @return a host for the specific key
virtual ConstHostPtr getHostByKey(uint64_t key) const;
/// @brief Retrieves a valid host key.
/// if lower_host_id is 0 the key parameter will be updated with the key of
/// the first host
@@ -2246,7 +2465,7 @@ protected:
/// returned range.
/// @param key identifier of the host which will be updated
///
/// @return true if there is sunh a host
/// @return true if there is such a host
virtual bool getHostKey4(const SubnetID& subnet_id,
uint64_t lower_host_id,
uint64_t& key) const;
@@ -2262,11 +2481,25 @@ protected:
/// returned range.
/// @param key identifier of the host which will be updated
///
/// @return true if there is sunh a host
/// @return true if there is such a host
virtual bool getHostKey6(const SubnetID& subnet_id,
uint64_t lower_host_id,
uint64_t& key) const;
/// @brief Retrieves a valid host key.
/// if lower_host_id is 0 the key parameter will be updated with the key of
/// the first host
/// if lower_host_id is not 0 the key parameter will be updated with the
/// next valid host key
///
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param key identifier of the host which will be updated
///
/// @return true if there is such a host
virtual bool getHostKey(uint64_t lower_host_id,
uint64_t& key) const;
/// @brief Retrieves next valid host key.
///
/// @param subnet_id identifier of the subnet to which hosts belong
@@ -2287,6 +2520,14 @@ protected:
virtual bool getNextHostKey6(const SubnetID& subnet_id,
uint64_t& key) const;
/// @brief Retrieves next valid host key.
///
/// @param key identifier of the host which will be updated with the next
/// valid host key
///
/// @return true if there is such a host
virtual bool getNextHostKey(uint64_t& key) const;
/// @brief Inserts or deletes a single host.
///
/// All information is available here. Calls @ref
@@ -2707,6 +2948,26 @@ CqlHostDataSourceImpl::getPage6(const SubnetID& subnet_id,
return (result);
}
ConstHostCollection
CqlHostDataSourceImpl::getPage4(uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Run statement.
ConstHostCollection result =
getHostCollectionPage4(lower_host_id, page_size.page_size_);
return (result);
}
ConstHostCollection
CqlHostDataSourceImpl::getPage6(uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Run statement.
ConstHostCollection result =
getHostCollectionPage6(lower_host_id, page_size.page_size_);
return (result);
}
ConstHostCollection
CqlHostDataSourceImpl::getAll4(const asiolink::IOAddress& address) const {
// Convert to CQL data types.
@@ -2933,6 +3194,31 @@ CqlHostDataSourceImpl::getHostByKey6(uint64_t key) const {
return (*collection.begin());
}
ConstHostPtr
CqlHostDataSourceImpl::getHostByKey(uint64_t key) const {
// Bind to array.
AnyArray where_values;
cass_int64_t key_data = static_cast<cass_int64_t>(key);
where_values.add(&key_data);
// Run statement.
ConstHostCollection collection =
getHostCollection(CqlHostExchange::GET_HOST_KEY,
where_values);
if (collection.empty()) {
return (ConstHostPtr());
}
if (collection.size() >= 2u) {
isc_throw(MultipleRecords, "CqlHostDataSourceImpl::getHost(): multiple records were "
"found in the database where only one was expected for statement "
<< CqlHostExchange::GET_HOST_KEY);
}
return (*collection.begin());
}
ConstHostCollection
CqlHostDataSourceImpl::getHostCollectionPage4(const SubnetID& subnet_id,
uint64_t lower_host_id,
@@ -2975,6 +3261,46 @@ CqlHostDataSourceImpl::getHostCollectionPage6(const SubnetID& subnet_id,
return (result_collection);
}
ConstHostCollection
CqlHostDataSourceImpl::getHostCollectionPage4(uint64_t lower_host_id,
size_t count) const {
ConstHostCollection result_collection;
for (; count; count--) {
uint64_t key;
bool valid_key = getHostKey(lower_host_id, key);
if (!valid_key) {
break;
}
ConstHostPtr host = getHostByKey(key);
result_collection.push_back(host);
lower_host_id = host->getHostId();
}
return (result_collection);
}
ConstHostCollection
CqlHostDataSourceImpl::getHostCollectionPage6(uint64_t lower_host_id,
size_t count) const {
ConstHostCollection result_collection;
for (; count; count--) {
uint64_t key;
bool valid_key = getHostKey(lower_host_id, key);
if (!valid_key) {
break;
}
ConstHostPtr host = getHostByKey6(key);
result_collection.push_back(host);
lower_host_id = host->getHostId();
}
return (result_collection);
}
bool
CqlHostDataSourceImpl::getHostKey4(const SubnetID& subnet_id,
uint64_t lower_host_id,
@@ -3075,6 +3401,50 @@ CqlHostDataSourceImpl::getHostKey6(const SubnetID& subnet_id,
return true;
}
bool
CqlHostDataSourceImpl::getHostKey(uint64_t lower_host_id,
uint64_t& key) const {
// Bind to array.
AnyArray where_values;
cass_int64_t host_data = 0;
if (lower_host_id) {
host_data = static_cast<cass_int64_t>(lower_host_id);
where_values.add(&host_data);
}
// Run statement.
// This will retrieve first row of the first host (lower_host_id == 0)
// or the first row of the host (lower_host_id != 0)
std::unique_ptr<CqlHostExchange> host_exchange(new CqlHostExchange());
AnyArray collection;
if (lower_host_id) {
collection = host_exchange->executeSelect(dbconn_, where_values,
CqlHostExchange::GET_HOST_PAGE, false);
} else {
collection = host_exchange->executeSelect(dbconn_, where_values,
CqlHostExchange::GET_HOST_LIMIT, false);
}
// Create HostPtr objects.
HostCollection host_collection;
for (boost::any& host : collection) {
host_collection.push_back(HostPtr(boost::any_cast<Host*>(host)));
}
// If there is no host, just exit
if (host_collection.empty()) {
return false;
}
key = host_exchange->hashIntoKey();
if (lower_host_id) {
return getNextHostKey(key);
}
return true;
}
bool
CqlHostDataSourceImpl::getNextHostKey4(const SubnetID& subnet_id,
uint64_t& key) const {
@@ -3137,6 +3507,34 @@ CqlHostDataSourceImpl::getNextHostKey6(const SubnetID& subnet_id,
return true;
}
bool
CqlHostDataSourceImpl::getNextHostKey(uint64_t& key) const {
// Convert to CQL data types.
cass_int64_t key_data = static_cast<cass_int64_t>(key);
// Bind to array.
AnyArray where_values;
where_values.add(&key_data);
// This will retrieve first row of the next host (lower_host_id != 0)
std::unique_ptr<CqlHostExchange> host_exchange(new CqlHostExchange());
AnyArray collection = host_exchange->executeSelect(dbconn_, where_values,
CqlHostExchange::GET_HOST_NEXT_KEY, false);
// Create HostPtr objects.
HostCollection host_collection;
for (boost::any& host : collection) {
host_collection.push_back(HostPtr(boost::any_cast<Host*>(host)));
}
if (host_collection.empty()) {
return false;
}
key = host_exchange->hashIntoKey();
return true;
}
bool
CqlHostDataSourceImpl::insertOrDeleteHost(bool insert,
const HostPtr& host,
@@ -3305,6 +3703,24 @@ CqlHostDataSource::getPage6(const SubnetID& subnet_id,
return (impl_->getPage6(subnet_id, lower_host_id, page_size));
}
ConstHostCollection
CqlHostDataSource::getPage4(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
LOG_DEBUG(dhcpsrv_logger, DHCPSRV_DBG_TRACE_DETAIL, DHCPSRV_CQL_HOST_GET_ALL);
return (impl_->getPage4(lower_host_id, page_size));
}
ConstHostCollection
CqlHostDataSource::getPage6(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
LOG_DEBUG(dhcpsrv_logger, DHCPSRV_DBG_TRACE_DETAIL, DHCPSRV_CQL_HOST_GET_ALL);
return (impl_->getPage6(lower_host_id, page_size));
}
ConstHostCollection
CqlHostDataSource::getAll4(const asiolink::IOAddress& address) const {
LOG_DEBUG(dhcpsrv_logger, DHCPSRV_DBG_TRACE_DETAIL, DHCPSRV_CQL_HOST_GET_ALL);

32
src/lib/dhcpsrv/cql_host_data_source.h
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2018-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2018-2020 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2016-2018 Deutsche Telekom AG.
//
// Author: Andrei Pavel <andrei.pavel@qualitance.com>
@@ -264,6 +264,36 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size) const override;
/// @brief Returns range of hosts.
///
/// Not implemented.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of const @c Host objects (may be empty).
virtual ConstHostCollection
getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const override;
/// @brief Returns range of hosts.
///
/// Not implemented.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of const @c Host objects (may be empty).
virtual ConstHostCollection
getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const override;
/// @brief Returns a collection of hosts using the specified IPv4 address.
///
/// This method may return multiple @ref Host objects if they are connected

62
src/lib/dhcpsrv/host_mgr.cc
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2014-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2014-2020 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
@@ -233,6 +233,66 @@ HostMgr::getPage6(const SubnetID& subnet_id,
return (getPage6(subnet_id, source_index, 0UL, page_size));
}
ConstHostCollection
HostMgr::getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Return empty if (and only if) sources are exhausted.
if (source_index > alternate_sources_.size()) {
return (ConstHostCollection());
}
ConstHostCollection hosts;
// Source index 0 means config file.
if (source_index == 0) {
hosts = getCfgHosts()->
getPage4(source_index, lower_host_id, page_size);
} else {
hosts = alternate_sources_[source_index - 1]->
getPage4(source_index, lower_host_id, page_size);
}
// When got something return it.
if (!hosts.empty()) {
return (hosts);
}
// Nothing from this source: try the next one.
// Note the recursion is limited to the number of sources in all cases.
++source_index;
return (getPage4(source_index, 0UL, page_size));
}
ConstHostCollection
HostMgr::getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Return empty if (and only if) sources are exhausted.
if (source_index > alternate_sources_.size()) {
return (ConstHostCollection());
}
ConstHostCollection hosts;
// Source index 0 means config file.
if (source_index == 0) {
hosts = getCfgHosts()->
getPage6(source_index, lower_host_id, page_size);
} else {
hosts = alternate_sources_[source_index - 1]->
getPage6(source_index, lower_host_id, page_size);
}
// When got something return it.
if (!hosts.empty()) {
return (hosts);
}
// Nothing from this source: try the next one.
// Note the recursion is limited to the number of sources in all cases.
++source_index;
return (getPage6(source_index, 0UL, page_size));
}
ConstHostCollection
HostMgr::getAll4(const IOAddress& address) const {
ConstHostCollection hosts = getCfgHosts()->getAll4(address);

56
src/lib/dhcpsrv/host_mgr.h
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2014-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2014-2020 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
@@ -255,6 +255,60 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns range of hosts.
///
/// This method returns a page of @c Host objects representing
/// reservations as documented in the @c BaseHostDataSource::getPage4
///
/// The typical usage of this method is as follows:
/// - Get the first page of hosts by specifying zero index and id
/// as the beginning of the range.
/// - Index and last id of the returned range should be used as
/// starting index and id for the next page in the subsequent call.
/// - All returned hosts are from the same source so if the number of
/// hosts returned is lower than the page size, it does not indicate
/// that the last page has been retrieved.
/// - If there are no hosts returned it indicates that the previous page
/// was the last page.
///
/// @param source_index Index of the source.
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Host collection (may be empty).
virtual ConstHostCollection
getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns range of hosts.
///
/// This method returns a page of @c Host objects representing
/// reservations as documented in the @c BaseHostDataSource::getPage6
///
/// The typical usage of this method is as follows:
/// - Get the first page of hosts by specifying zero index and id
/// as the beginning of the range.
/// - Index and last id of the returned range should be used as
/// starting index and id for the next page in the subsequent call.
/// - All returned hosts are from the same source so if the number of
/// hosts returned is lower than the page size, it does not indicate
/// that the last page has been retrieved.
/// - If there are no hosts returned it indicates that the previous page
/// was the last page.
///
/// @param source_index Index of the source.
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Host collection (may be empty).
virtual ConstHostCollection
getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns a collection of hosts using the specified IPv4 address.
///
/// This method may return multiple @c Host objects if they are connected to

8
src/lib/dhcpsrv/hosts_messages.cc
View File

@@ -1,4 +1,4 @@
// File created from ../../../src/lib/dhcpsrv/hosts_messages.mes on Mon Jun 22 2020 17:23
// File created from ../../../src/lib/dhcpsrv/hosts_messages.mes on Tue Sep 01 2020 12:49
#include <cstddef>
#include <log/message_types.h>
@@ -15,12 +15,15 @@ extern const isc::log::MessageID HOSTS_CFG_CACHE_HOST_DATA_SOURCE = "HOSTS_CFG_C
extern const isc::log::MessageID HOSTS_CFG_CLOSE_HOST_DATA_SOURCE = "HOSTS_CFG_CLOSE_HOST_DATA_SOURCE";
extern const isc::log::MessageID HOSTS_CFG_DEL_ALL_SUBNET4 = "HOSTS_CFG_DEL_ALL_SUBNET4";
extern const isc::log::MessageID HOSTS_CFG_DEL_ALL_SUBNET6 = "HOSTS_CFG_DEL_ALL_SUBNET6";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL = "HOSTS_CFG_GET_ALL";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS4 = "HOSTS_CFG_GET_ALL_ADDRESS4";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS4_COUNT = "HOSTS_CFG_GET_ALL_ADDRESS4_COUNT";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS4_HOST = "HOSTS_CFG_GET_ALL_ADDRESS4_HOST";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS6 = "HOSTS_CFG_GET_ALL_ADDRESS6";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS6_COUNT = "HOSTS_CFG_GET_ALL_ADDRESS6_COUNT";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS6_HOST = "HOSTS_CFG_GET_ALL_ADDRESS6_HOST";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_COUNT = "HOSTS_CFG_GET_ALL_COUNT";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_HOST = "HOSTS_CFG_GET_ALL_HOST";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_HOSTNAME = "HOSTS_CFG_GET_ALL_HOSTNAME";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_HOSTNAME_COUNT = "HOSTS_CFG_GET_ALL_HOSTNAME_COUNT";
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_HOSTNAME_HOST = "HOSTS_CFG_GET_ALL_HOSTNAME_HOST";
@@ -78,12 +81,15 @@ const char* values[] = {
"HOSTS_CFG_CLOSE_HOST_DATA_SOURCE", "Closing host data source: %1",
"HOSTS_CFG_DEL_ALL_SUBNET4", "deleted all %1 host(s) for subnet id %2",
"HOSTS_CFG_DEL_ALL_SUBNET6", "deleted all %1 host(s) including %2 IPv6 reservation(s) for subnet id %3",
"HOSTS_CFG_GET_ALL", "get all hosts with reservations",
"HOSTS_CFG_GET_ALL_ADDRESS4", "get all hosts with reservations for IPv4 address %1",
"HOSTS_CFG_GET_ALL_ADDRESS4_COUNT", "using address %1, found %2 host(s)",
"HOSTS_CFG_GET_ALL_ADDRESS4_HOST", "using address %1 found host: %2",
"HOSTS_CFG_GET_ALL_ADDRESS6", "get all hosts with reservations for IPv6 address %1",
"HOSTS_CFG_GET_ALL_ADDRESS6_COUNT", "using address %1, found %2 host(s)",
"HOSTS_CFG_GET_ALL_ADDRESS6_HOST", "using address %1 found host: %2",
"HOSTS_CFG_GET_ALL_COUNT", "found %1 host(s)",
"HOSTS_CFG_GET_ALL_HOST", "found host: %1",
"HOSTS_CFG_GET_ALL_HOSTNAME", "get all hosts with reservations for hostname %1",
"HOSTS_CFG_GET_ALL_HOSTNAME_COUNT", "using hostname %1, found %2 host(s)",
"HOSTS_CFG_GET_ALL_HOSTNAME_HOST", "using hostname %1, found host: %2",

5
src/lib/dhcpsrv/hosts_messages.h
View File

@@ -1,4 +1,4 @@
// File created from ../../../src/lib/dhcpsrv/hosts_messages.mes on Mon Jun 22 2020 17:23
// File created from ../../../src/lib/dhcpsrv/hosts_messages.mes on Tue Sep 01 2020 12:49
#ifndef HOSTS_MESSAGES_H
#define HOSTS_MESSAGES_H
@@ -16,12 +16,15 @@ extern const isc::log::MessageID HOSTS_CFG_CACHE_HOST_DATA_SOURCE;
extern const isc::log::MessageID HOSTS_CFG_CLOSE_HOST_DATA_SOURCE;
extern const isc::log::MessageID HOSTS_CFG_DEL_ALL_SUBNET4;
extern const isc::log::MessageID HOSTS_CFG_DEL_ALL_SUBNET6;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS4;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS4_COUNT;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS4_HOST;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS6;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS6_COUNT;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_ADDRESS6_HOST;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_COUNT;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_HOST;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_HOSTNAME;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_HOSTNAME_COUNT;
extern const isc::log::MessageID HOSTS_CFG_GET_ALL_HOSTNAME_HOST;

13
src/lib/dhcpsrv/hosts_messages.mes
View File

@@ -1,4 +1,4 @@
# Copyright (C) 2015-2019 Internet Systems Consortium, Inc. ("ISC")
# Copyright (C) 2015-2020 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
@@ -43,6 +43,17 @@ have been deleted. The second argument specifies how many IPv6
(addresses and prefixes) have been deleted. The third argument is the
subnet identifier.
% HOSTS_CFG_GET_ALL get all hosts with reservations
This debug message is issued when starting to retrieve all hosts.
% HOSTS_CFG_GET_ALL_COUNT found %1 host(s)
This debug message include the details of the host found. The argument
specifies the number of hosts found.
% HOSTS_CFG_GET_ALL_HOST found host: %1
This debug message includes the details of the host found. The argument
specifies found host details.
% HOSTS_CFG_GET_ALL_ADDRESS4 get all hosts with reservations for IPv4 address %1
This debug message is issued when starting to retrieve all hosts, holding the
reservation for the specific IPv4 address, from the configuration. The

111
src/lib/dhcpsrv/mysql_host_data_source.cc
View File

@@ -2004,6 +2004,8 @@ public:
GET_HOST_HOSTNAME_SUBID6, // Gets hosts by hostname and IPv6 SubnetID
GET_HOST_SUBID4_PAGE, // Gets hosts by IPv4 SubnetID beginning by HID
GET_HOST_SUBID6_PAGE, // Gets hosts by IPv6 SubnetID beginning by HID
GET_HOST_PAGE4, // Gets v4 hosts beginning by HID
GET_HOST_PAGE6, // Gets v6 hosts beginning by HID
INSERT_HOST, // Insert new host to collection
INSERT_V6_RESRV, // Insert v6 reservation
INSERT_V4_HOST_OPTION, // Insert DHCPv4 option
@@ -2516,6 +2518,53 @@ TaggedStatementArray tagged_statements = { {
"ON h.host_id = r.host_id "
"ORDER BY h.host_id, o.option_id, r.reservation_id"},
// Retrieves host information along with the DHCPv4 options associated with
// it. Left joining the dhcp4_options table results in multiple rows being
// returned for the same host. Hosts are retrieved with a host id greater
// than the start one.
// The number of hosts returned is lower or equal to the limit.
{MySqlHostDataSourceImpl::GET_HOST_PAGE4,
"SELECT h.host_id, h.dhcp_identifier, h.dhcp_identifier_type, "
"h.dhcp4_subnet_id, h.dhcp6_subnet_id, h.ipv4_address, h.hostname, "
"h.dhcp4_client_classes, h.dhcp6_client_classes, h.user_context, "
"h.dhcp4_next_server, h.dhcp4_server_hostname, "
"h.dhcp4_boot_file_name, h.auth_key, "
"o.option_id, o.code, o.value, o.formatted_value, o.space, "
"o.persistent, o.user_context "
"FROM ( SELECT * FROM hosts AS h "
"WHERE h.host_id > ? "
"ORDER BY h.host_id "
"LIMIT ? ) AS h "
"LEFT JOIN dhcp4_options AS o "
"ON h.host_id = o.host_id "
"ORDER BY h.host_id, o.option_id"},
// Retrieves host information, IPv6 reservations and DHCPv6 options
// associated with a host. The number of rows returned is a multiplication
// of number of IPv6 reservations and DHCPv6 options. Hosts are retrieved
// with a host id greater than the start one.
// The number of hosts returned is lower or equal to the limit.
{MySqlHostDataSourceImpl::GET_HOST_PAGE6,
"SELECT h.host_id, h.dhcp_identifier, "
"h.dhcp_identifier_type, h.dhcp4_subnet_id, "
"h.dhcp6_subnet_id, h.ipv4_address, h.hostname, "
"h.dhcp4_client_classes, h.dhcp6_client_classes, h.user_context, "
"h.dhcp4_next_server, h.dhcp4_server_hostname, "
"h.dhcp4_boot_file_name, h.auth_key, "
"o.option_id, o.code, o.value, o.formatted_value, o.space, "
"o.persistent, o.user_context, "
"r.reservation_id, r.address, r.prefix_len, r.type, "
"r.dhcp6_iaid "
"FROM ( SELECT * FROM hosts AS h "
"WHERE h.host_id > ? "
"ORDER BY h.host_id "
"LIMIT ? ) AS h "
"LEFT JOIN dhcp6_options AS o "
"ON h.host_id = o.host_id "
"LEFT JOIN ipv6_reservations AS r "
"ON h.host_id = r.host_id "
"ORDER BY h.host_id, o.option_id, r.reservation_id"},
// Inserts a host into the 'hosts' table.
{MySqlHostDataSourceImpl::INSERT_HOST,
"INSERT INTO hosts(host_id, dhcp_identifier, dhcp_identifier_type, "
@@ -3311,6 +3360,68 @@ MySqlHostDataSource::getPage6(const SubnetID& subnet_id,
return (result);
}
ConstHostCollection
MySqlHostDataSource::getPage4(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Get a context
MySqlHostContextAlloc get_context(*impl_);
MySqlHostContextPtr ctx = get_context.ctx_;
// Set up the WHERE clause value
MYSQL_BIND inbind[2];
memset(inbind, 0, sizeof(inbind));
// Bind lower host id
uint32_t host_id = lower_host_id;
inbind[0].buffer_type = MYSQL_TYPE_LONG;
inbind[0].buffer = reinterpret_cast<char*>(&host_id);
inbind[0].is_unsigned = MLM_TRUE;
// Bind page size value
uint32_t page_size_data = page_size.page_size_;
inbind[1].buffer_type = MYSQL_TYPE_LONG;
inbind[1].buffer = reinterpret_cast<char*>(&page_size_data);
inbind[1].is_unsigned = MLM_TRUE;
ConstHostCollection result;
impl_->getHostCollection(ctx, MySqlHostDataSourceImpl::GET_HOST_PAGE4, inbind,
ctx->host_ipv4_exchange_, result, false);
return (result);
}
ConstHostCollection
MySqlHostDataSource::getPage6(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Get a context
MySqlHostContextAlloc get_context(*impl_);
MySqlHostContextPtr ctx = get_context.ctx_;
// Set up the WHERE clause value
MYSQL_BIND inbind[2];
memset(inbind, 0, sizeof(inbind));
// Bind lower host id
uint32_t host_id = lower_host_id;
inbind[0].buffer_type = MYSQL_TYPE_LONG;
inbind[0].buffer = reinterpret_cast<char*>(&host_id);
inbind[0].is_unsigned = MLM_TRUE;
// Bind page size value
uint32_t page_size_data = page_size.page_size_;
inbind[1].buffer_type = MYSQL_TYPE_LONG;
inbind[1].buffer = reinterpret_cast<char*>(&page_size_data);
inbind[1].is_unsigned = MLM_TRUE;
ConstHostCollection result;
impl_->getHostCollection(ctx, MySqlHostDataSourceImpl::GET_HOST_PAGE6, inbind,
ctx->host_ipv6_exchange_, result, false);
return (result);
}
ConstHostCollection
MySqlHostDataSource::getAll4(const asiolink::IOAddress& address) const {
// Get a context

30
src/lib/dhcpsrv/mysql_host_data_source.h
View File

@@ -233,6 +233,36 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns range of hosts.
///
/// This method returns a page of @c Host objects which represent
/// reservations.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of const @c Host objects (may be empty).
virtual ConstHostCollection getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns range of hosts.
///
/// This method returns a page of @c Host objects which represent
/// reservations.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of const @c Host objects (may be empty).
virtual ConstHostCollection getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns a collection of hosts using the specified IPv4 address.
///
/// This method may return multiple @c Host objects if they are connected

105
src/lib/dhcpsrv/pgsql_host_data_source.cc
View File

@@ -1368,6 +1368,8 @@ public:
GET_HOST_HOSTNAME_SUBID6, // Gets hosts by hostname and IPv6 SubnetID
GET_HOST_SUBID4_PAGE, // Gets hosts by IPv4 SubnetID beginning by HID
GET_HOST_SUBID6_PAGE, // Gets hosts by IPv6 SubnetID beginning by HID
GET_HOST_PAGE4, // Gets v4 hosts beginning by HID
GET_HOST_PAGE6, // Gets v6 hosts beginning by HID
INSERT_HOST, // Insert new host to collection
INSERT_V6_RESRV, // Insert v6 reservation
INSERT_V4_HOST_OPTION, // Insert DHCPv4 option
@@ -1908,6 +1910,57 @@ TaggedStatementArray tagged_statements = { {
"ORDER BY h.host_id, o.option_id, r.reservation_id"
},
// PgSqlHostDataSourceImpl::GET_HOST_PAGE4
// Retrieves host information along with the DHCPv4 options associated with
// it. Left joining the dhcp4_options table results in multiple rows being
// returned for the same host. The hosts are retrieved starting from
// specified host id. Specified number of hosts is returned.
{2,
{ OID_INT8, OID_INT8 },
"get_host_page4",
"SELECT h.host_id, h.dhcp_identifier, h.dhcp_identifier_type, "
" h.dhcp4_subnet_id, h.dhcp6_subnet_id, h.ipv4_address, h.hostname, "
" h.dhcp4_client_classes, h.dhcp6_client_classes, h.user_context, "
" h.dhcp4_next_server, h.dhcp4_server_hostname, "
" h.dhcp4_boot_file_name, h.auth_key, "
" o.option_id, o.code, o.value, o.formatted_value, o.space, "
" o.persistent, o.user_context "
"FROM ( SELECT * FROM hosts AS h "
" WHERE h.host_id > $1 "
" ORDER BY h.host_id "
" LIMIT $2 ) AS h "
"LEFT JOIN dhcp4_options AS o ON h.host_id = o.host_id "
"ORDER BY h.host_id, o.option_id"
},
// PgSqlHostDataSourceImpl::GET_HOST_PAGE6
// Retrieves host information, IPv6 reservations and DHCPv6 options
// associated with a host using IPv6 subnet id. This query returns
// host information for a single host. However, multiple rows are
// returned due to left joining IPv6 reservations and DHCPv6 options.
// The number of rows returned is multiplication of number of existing
// IPv6 reservations and DHCPv6 options.
{2,
{ OID_INT8, OID_INT8 },
"get_host_page6",
"SELECT h.host_id, h.dhcp_identifier, "
" h.dhcp_identifier_type, h.dhcp4_subnet_id, "
" h.dhcp6_subnet_id, h.ipv4_address, h.hostname, "
" h.dhcp4_client_classes, h.dhcp6_client_classes, h.user_context, "
" h.dhcp4_next_server, h.dhcp4_server_hostname, "
" h.dhcp4_boot_file_name, h.auth_key, "
" o.option_id, o.code, o.value, o.formatted_value, o.space, "
" o.persistent, o.user_context, "
" r.reservation_id, r.address, r.prefix_len, r.type, r.dhcp6_iaid "
"FROM ( SELECT * FROM hosts AS h "
" WHERE h.host_id > $1 "
" ORDER BY h.host_id "
" LIMIT $2 ) AS h "
"LEFT JOIN dhcp6_options AS o ON h.host_id = o.host_id "
"LEFT JOIN ipv6_reservations AS r ON h.host_id = r.host_id "
"ORDER BY h.host_id, o.option_id, r.reservation_id"
},
// PgSqlHostDataSourceImpl::INSERT_HOST
// Inserts a host into the 'hosts' table. Returns the inserted host id.
{13,
@@ -2598,6 +2651,58 @@ PgSqlHostDataSource::getPage6(const SubnetID& subnet_id,
return (result);
}
ConstHostCollection
PgSqlHostDataSource::getPage4(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Get a context
PgSqlHostContextAlloc get_context(*impl_);
PgSqlHostContextPtr ctx = get_context.ctx_;
// Set up the WHERE clause value
PsqlBindArrayPtr bind_array(new PsqlBindArray());
// Add the lower bound host id.
bind_array->add(lower_host_id);
// Add the page size value.
string page_size_data =
boost::lexical_cast<std::string>(page_size.page_size_);
bind_array->add(page_size_data);
ConstHostCollection result;
impl_->getHostCollection(ctx, PgSqlHostDataSourceImpl::GET_HOST_PAGE4,
bind_array, ctx->host_ipv4_exchange_, result, false);
return (result);
}
ConstHostCollection
PgSqlHostDataSource::getPage6(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
// Get a context
PgSqlHostContextAlloc get_context(*impl_);
PgSqlHostContextPtr ctx = get_context.ctx_;
// Set up the WHERE clause value
PsqlBindArrayPtr bind_array(new PsqlBindArray());
// Add the lower bound host id.
bind_array->add(lower_host_id);
// Add the page size value.
string page_size_data =
boost::lexical_cast<std::string>(page_size.page_size_);
bind_array->add(page_size_data);
ConstHostCollection result;
impl_->getHostCollection(ctx, PgSqlHostDataSourceImpl::GET_HOST_PAGE6,
bind_array, ctx->host_ipv6_exchange_, result, false);
return (result);
}
ConstHostCollection
PgSqlHostDataSource::getAll4(const asiolink::IOAddress& address) const {
// Get a context

40
src/lib/dhcpsrv/pgsql_host_data_source.h
View File

@@ -272,6 +272,46 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns range of hosts.
///
/// This method implements paged browsing of host databases. The
/// parameters specify a page size, an index in sources and the
/// starting host id of the range. If not zero this host id is
/// excluded from the returned range. When a source is exhausted
/// the index is updated. There is no guarantee about the order
/// of returned host reservations, only the sources and
/// reservations from the same source are ordered.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of const @c Host objects (may be empty).
virtual ConstHostCollection getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns range of hosts.
///
/// This method implements paged browsing of host databases. The
/// parameters specify a page size, an index in sources and the
/// starting host id of the range. If not zero this host id is
/// excluded from the returned range. When a source is exhausted
/// the index is updated. There is no guarantee about the order
/// of returned host reservations, only the sources and
/// reservations from the same source are ordered.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of const @c Host objects (may be empty).
virtual ConstHostCollection getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns a collection of hosts using the specified IPv4 address.
///
/// This method may return multiple @c Host objects if they are connected

12
src/lib/dhcpsrv/tests/host_cache_unittest.cc
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2018-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2018-2020 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
@@ -635,6 +635,16 @@ public:
return (getCollection());
}
ConstHostCollection getPage4(size_t&, uint64_t,
const HostPageSize&) const {
return (getCollection());
}
ConstHostCollection getPage6(size_t&, uint64_t,
const HostPageSize&) const {
return (getCollection());
}
ConstHostCollection getAll4(const IOAddress&) const {
return (getCollection());
}

36
src/lib/dhcpsrv/testutils/memory_host_data_source.cc
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2018-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2018-2020 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
@@ -130,6 +130,40 @@ MemHostDataSource::getPage6(const SubnetID& subnet_id,
return (hosts);
}
ConstHostCollection
MemHostDataSource::getPage4(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
ConstHostCollection hosts;
for (auto h = store_.begin(); h != store_.end(); ++h) {
if (lower_host_id && ((*h)->getHostId() <= lower_host_id)) {
continue;
}
hosts.push_back(*h);
if (hosts.size() == page_size.page_size_) {
break;
}
}
return (hosts);
}
ConstHostCollection
MemHostDataSource::getPage6(size_t& /*source_index*/,
uint64_t lower_host_id,
const HostPageSize& page_size) const {
ConstHostCollection hosts;
for (auto h = store_.begin(); h != store_.end(); ++h) {
if (lower_host_id && ((*h)->getHostId() <= lower_host_id)) {
continue;
}
hosts.push_back(*h);
if (hosts.size() == page_size.page_size_) {
break;
}
}
return (hosts);
}
ConstHostCollection
MemHostDataSource::getAll4(const asiolink::IOAddress& /*address*/) const {
return (ConstHostCollection());

24
src/lib/dhcpsrv/testutils/memory_host_data_source.h
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2018-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2018-2020 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
@@ -104,6 +104,28 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Return range of hosts.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
virtual ConstHostCollection
getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Return range of hosts.
///
/// @param source_index Index of the source (unused).
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
virtual ConstHostCollection
getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) const;
/// @brief Returns a collection of hosts using the specified IPv4 address.
///
/// Currently not implemented.

44
src/lib/dhcpsrv/writable_host_data_source.h
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2014-2019 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2014-2020 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
@@ -138,6 +138,48 @@ public:
uint64_t lower_host_id,
const HostPageSize& page_size) = 0;
/// @brief Returns range of hosts.
///
/// This method implements paged browsing of host databases. The
/// parameters specify a page size, an index in sources and the
/// starting host id of the range. If not zero this host id is
/// excluded from the returned range. When a source is exhausted
/// the index is updated. There is no guarantee about the order
/// of returned host reservations, only the sources and
/// reservations from the same source are ordered.
///
/// @param source_index Index of the source.
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of non-const @c Host objects.
virtual HostCollection
getPage4(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) = 0;
/// @brief Returns range of hosts.
///
/// This method implements paged browsing of host databases. The
/// parameters specify a page size, an index in sources and the
/// starting host id of the range. If not zero this host id is
/// excluded from the returned range. When a source is exhausted
/// the index is updated. There is no guarantee about the order
/// of returned host reservations, only the sources and
/// reservations from the same source are ordered.
///
/// @param source_index Index of the source.
/// @param lower_host_id Host identifier used as lower bound for the
/// returned range.
/// @param page_size maximum size of the page returned.
///
/// @return Collection of non-const @c Host objects.
virtual HostCollection
getPage6(size_t& source_index,
uint64_t lower_host_id,
const HostPageSize& page_size) = 0;
/// @brief Returns a collection of hosts using the specified IPv4 address.
///
/// This method may return multiple @c Host objects if they are connected