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[3681] DataSource class added.

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- code refactoring after last commit, clean-up, compilation fixes
 - Makefile updates
 - Added new unit-tests for DataSource (mostly moved from LeaseMgr
   unit-tests)
This commit is contained in:
Tomek Mrugalski
2015-04-17 21:21:26 +02:00
parent 2a3ac3ef7d
commit 373aa0a40e
19 changed files with 446 additions and 459 deletions
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193
src/lib/dhcpsrv/mysql_lease_mgr.cc
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@@ -76,6 +76,111 @@ using namespace std;
/// - If there is output, copy the data from the bound variables to the output
/// lease object.
namespace {
/// @brief Maximum length of the hostname stored in DNS.
///
/// This length is restricted by the length of the domain-name carried
/// in the Client FQDN %Option (see RFC4702 and RFC4704).
const size_t HOSTNAME_MAX_LEN = 255;
/// @brief Maximum size of an IPv6 address represented as a text string.
///
/// This is 32 hexadecimal characters written in 8 groups of four, plus seven
/// colon separators.
const size_t ADDRESS6_TEXT_MAX_LEN = 39;
TaggedStatement tagged_statements[] = {
{MySqlLeaseMgr::DELETE_LEASE4,
"DELETE FROM lease4 WHERE address = ?"},
{MySqlLeaseMgr::DELETE_LEASE6,
"DELETE FROM lease6 WHERE address = ?"},
{MySqlLeaseMgr::GET_LEASE4_ADDR,
"SELECT address, hwaddr, client_id, "
"valid_lifetime, expire, subnet_id, "
"fqdn_fwd, fqdn_rev, hostname "
"FROM lease4 "
"WHERE address = ?"},
{MySqlLeaseMgr::GET_LEASE4_CLIENTID,
"SELECT address, hwaddr, client_id, "
"valid_lifetime, expire, subnet_id, "
"fqdn_fwd, fqdn_rev, hostname "
"FROM lease4 "
"WHERE client_id = ?"},
{MySqlLeaseMgr::GET_LEASE4_CLIENTID_SUBID,
"SELECT address, hwaddr, client_id, "
"valid_lifetime, expire, subnet_id, "
"fqdn_fwd, fqdn_rev, hostname "
"FROM lease4 "
"WHERE client_id = ? AND subnet_id = ?"},
{MySqlLeaseMgr::GET_LEASE4_HWADDR,
"SELECT address, hwaddr, client_id, "
"valid_lifetime, expire, subnet_id, "
"fqdn_fwd, fqdn_rev, hostname "
"FROM lease4 "
"WHERE hwaddr = ?"},
{MySqlLeaseMgr::GET_LEASE4_HWADDR_SUBID,
"SELECT address, hwaddr, client_id, "
"valid_lifetime, expire, subnet_id, "
"fqdn_fwd, fqdn_rev, hostname "
"FROM lease4 "
"WHERE hwaddr = ? AND subnet_id = ?"},
{MySqlLeaseMgr::GET_LEASE6_ADDR,
"SELECT address, duid, valid_lifetime, "
"expire, subnet_id, pref_lifetime, "
"lease_type, iaid, prefix_len, "
"fqdn_fwd, fqdn_rev, hostname, "
"hwaddr, hwtype, hwaddr_source "
"FROM lease6 "
"WHERE address = ? AND lease_type = ?"},
{MySqlLeaseMgr::GET_LEASE6_DUID_IAID,
"SELECT address, duid, valid_lifetime, "
"expire, subnet_id, pref_lifetime, "
"lease_type, iaid, prefix_len, "
"fqdn_fwd, fqdn_rev, hostname, "
"hwaddr, hwtype, hwaddr_source "
"FROM lease6 "
"WHERE duid = ? AND iaid = ? AND lease_type = ?"},
{MySqlLeaseMgr::GET_LEASE6_DUID_IAID_SUBID,
"SELECT address, duid, valid_lifetime, "
"expire, subnet_id, pref_lifetime, "
"lease_type, iaid, prefix_len, "
"fqdn_fwd, fqdn_rev, hostname, "
"hwaddr, hwtype, hwaddr_source "
"FROM lease6 "
"WHERE duid = ? AND iaid = ? AND subnet_id = ? "
"AND lease_type = ?"},
{MySqlLeaseMgr::GET_VERSION,
"SELECT version, minor FROM schema_version"},
{MySqlLeaseMgr::INSERT_LEASE4,
"INSERT INTO lease4(address, hwaddr, client_id, "
"valid_lifetime, expire, subnet_id, "
"fqdn_fwd, fqdn_rev, hostname) "
"VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)"},
{MySqlLeaseMgr::INSERT_LEASE6,
"INSERT INTO lease6(address, duid, valid_lifetime, "
"expire, subnet_id, pref_lifetime, "
"lease_type, iaid, prefix_len, "
"fqdn_fwd, fqdn_rev, hostname, "
"hwaddr, hwtype, hwaddr_source) "
"VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"},
{MySqlLeaseMgr::UPDATE_LEASE4,
"UPDATE lease4 SET address = ?, hwaddr = ?, "
"client_id = ?, valid_lifetime = ?, expire = ?, "
"subnet_id = ?, fqdn_fwd = ?, fqdn_rev = ?, "
"hostname = ? "
"WHERE address = ?"},
{MySqlLeaseMgr::UPDATE_LEASE6,
"UPDATE lease6 SET address = ?, duid = ?, "
"valid_lifetime = ?, expire = ?, subnet_id = ?, "
"pref_lifetime = ?, lease_type = ?, iaid = ?, "
"prefix_len = ?, fqdn_fwd = ?, fqdn_rev = ?, "
"hostname = ?, hwaddr = ?, hwtype = ?, hwaddr_source = ? "
"WHERE address = ?"},
// End of list sentinel
{MySqlLeaseMgr::NUM_STATEMENTS, NULL}
};
};
namespace isc {
namespace dhcp {
@@ -1062,7 +1167,7 @@ MySqlLeaseMgr::MySqlLeaseMgr(const MySqlConnection::ParameterMap& parameters)
}
// Prepare all statements likely to be used.
prepareStatements();
prepareStatements(tagged_statements, MySqlLeaseMgr::NUM_STATEMENTS);
// Create the exchange objects for use in exchanging data between the
// program and the database.
@@ -1759,7 +1864,93 @@ MySqlLeaseMgr::deleteLease(const isc::asiolink::IOAddress& addr) {
}
}
// Miscellaneous database methods.
std::string
MySqlLeaseMgr::getName() const {
std::string name = "";
try {
name = getParameter("name");
} catch (...) {
// Return an empty name
}
return (name);
}
std::string
MySqlLeaseMgr::getDescription() const {
return (std::string("MySQL Database"));
}
std::pair<uint32_t, uint32_t>
MySqlLeaseMgr::getVersion() const {
const StatementIndex stindex = GET_VERSION;
LOG_DEBUG(dhcpsrv_logger, DHCPSRV_DBG_TRACE_DETAIL,
DHCPSRV_MYSQL_GET_VERSION);
uint32_t major; // Major version number
uint32_t minor; // Minor version number
// Execute the prepared statement
int status = mysql_stmt_execute(statements_[stindex]);
if (status != 0) {
isc_throw(DbOperationError, "unable to execute <"
<< text_statements_[stindex] << "> - reason: " <<
mysql_error(mysql_));
}
// Bind the output of the statement to the appropriate variables.
MYSQL_BIND bind[2];
memset(bind, 0, sizeof(bind));
bind[0].buffer_type = MYSQL_TYPE_LONG;
bind[0].is_unsigned = 1;
bind[0].buffer = &major;
bind[0].buffer_length = sizeof(major);
bind[1].buffer_type = MYSQL_TYPE_LONG;
bind[1].is_unsigned = 1;
bind[1].buffer = &minor;
bind[1].buffer_length = sizeof(minor);
status = mysql_stmt_bind_result(statements_[stindex], bind);
if (status != 0) {
isc_throw(DbOperationError, "unable to bind result set: " <<
mysql_error(mysql_));
}
// Fetch the data and set up the "release" object to release associated
// resources when this method exits then retrieve the data.
MySqlFreeResult fetch_release(statements_[stindex]);
status = mysql_stmt_fetch(statements_[stindex]);
if (status != 0) {
isc_throw(DbOperationError, "unable to obtain result set: " <<
mysql_error(mysql_));
}
return (std::make_pair(major, minor));
}
void
MySqlLeaseMgr::commit() {
LOG_DEBUG(dhcpsrv_logger, DHCPSRV_DBG_TRACE_DETAIL, DHCPSRV_MYSQL_COMMIT);
if (mysql_commit(mysql_) != 0) {
isc_throw(DbOperationError, "commit failed: " << mysql_error(mysql_));
}
}
void
MySqlLeaseMgr::rollback() {
LOG_DEBUG(dhcpsrv_logger, DHCPSRV_DBG_TRACE_DETAIL, DHCPSRV_MYSQL_ROLLBACK);
if (mysql_rollback(mysql_) != 0) {
isc_throw(DbOperationError, "rollback failed: " << mysql_error(mysql_));
}
}
}; // end of isc::dhcp namespace
}; // end of isc namespace