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oraclebackend.cc
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// $Id$
/*
* Copyright (c) 2010-2011
*
* Maik Zumstrull <maik@zumstrull.net>
* Steinbuch Centre for Computing <http://www.scc.kit.edu/>
* Karlsruhe Institute of Technology <http://www.kit.edu/>
*
*/
#include <string>
#include <stdexcept>
#include "pdns/namespaces.hh"
#include "pdns/dns.hh"
#include "pdns/dnsbackend.hh"
#include "oraclebackend.hh"
#include "pdns/logger.hh"
#include "pdns/arguments.hh"
#include "pdns/lock.hh"
#include <oci.h>
static const char *basicQueryKey = "PDNS_Basic_Query";
static const char *basicQueryDefaultSQL =
"SELECT fqdn, ttl, type, content, zone_id, last_change, auth "
"FROM Records "
"WHERE type = :type AND fqdn = lower(:name)";
static const char *basicIdQueryKey = "PDNS_Basic_Id_Query";
static const char *basicIdQueryDefaultSQL =
"SELECT fqdn, ttl, type, content, zone_id, last_change, auth "
"FROM Records "
"WHERE type = :type AND fqdn = lower(:name) AND zone_id = :zoneid";
static const char *anyQueryKey = "PDNS_ANY_Query";
static const char *anyQueryDefaultSQL =
"SELECT fqdn, ttl, type, content, zone_id, last_change, auth "
"FROM Records "
"WHERE fqdn = lower(:name)"
" AND type IS NOT NULL "
"ORDER BY type";
static const char *anyIdQueryKey = "PDNS_ANY_Id_Query";
static const char *anyIdQueryDefaultSQL =
"SELECT fqdn, ttl, type, content, zone_id, last_change, auth "
"FROM Records "
"WHERE fqdn = lower(:name)"
" AND zone_id = :zoneid"
" AND type IS NOT NULL "
"ORDER BY type";
static const char *listQueryKey = "PDNS_List_Query";
static const char *listQueryDefaultSQL =
"SELECT fqdn, ttl, type, content, zone_id, last_change, auth "
"FROM Records "
"WHERE zone_id = :zoneid"
" AND type IS NOT NULL "
"ORDER BY fqdn, type";
static const char *zoneInfoQueryKey = "PDNS_Zone_Info_Query";
static const char *zoneInfoQueryDefaultSQL =
"SELECT id, name, type, last_check, serial, notified_serial "
"FROM Zones "
"WHERE name = lower(:name)";
static const char *alsoNotifyQueryKey = "PDNS_Also_Notify_Query";
static const char *alsoNotifyQueryDefaultSQL =
"SELECT an.hostaddr "
"FROM Zones z JOIN ZoneAlsoNotify an ON z.id = an.zone_id "
"WHERE z.name = lower(:name)";
static const char *zoneMastersQueryKey = "PDNS_Zone_Masters_Query";
static const char *zoneMastersQueryDefaultSQL =
"SELECT master "
"FROM Zonemasters "
"WHERE zone_id = :zoneid";
static const char *isZoneMasterQueryKey = "PDNS_Is_Zone_Master_Query";
static const char *isZoneMasterQueryDefaultSQL =
"SELECT zm.master "
"FROM Zones z JOIN Zonemasters zm ON z.id = zm.zone_id "
"WHERE z.name = lower(:name) AND zm.master = :master";
static const char *deleteZoneQueryKey = "PDNS_Delete_Zone_Query";
static const char *deleteZoneQueryDefaultSQL =
"DELETE FROM Records WHERE zone_id = :zoneid";
static const char *zoneSetLastCheckQueryKey = "PDNS_Zone_Set_Last_Check_Query";
static const char *zoneSetLastCheckQueryDefaultSQL =
"UPDATE Zones SET last_check = :lastcheck WHERE id = :zoneid";
static const char *zoneSetNotifiedSerialQueryKey = "PDNS_Zone_Set_NSerial_Query";
static const char *zoneSetNotifiedSerialQueryDefaultSQL =
"UPDATE Zones SET notified_serial = :serial WHERE id = :zoneid";
static const char *insertRecordQueryKey = "PDNS_Insert_Record_Query";
static const char *insertRecordQueryDefaultSQL =
"INSERT INTO Records (id, fqdn, zone_id, ttl, type, content) "
"VALUES (records_id_seq.NEXTVAL, lower(:name), :zoneid, :ttl, :type, :content)";
static const char *finalizeAXFRQueryKey = "PDNS_Finalize_AXFR";
static const char *finalizeAXFRQueryDefaultSQL =
"DECLARE\n"
" zone_id INTEGER := :zoneid;\n"
"BEGIN\n"
" NULL;\n"
"END;";
static const char *unfreshZonesQueryKey = "PDNS_Unfresh_Zones_Query";
static const char *unfreshZonesQueryDefaultSQL =
"SELECT z.id, z.name, z.last_check, z.serial, zm.master "
"FROM Zones z JOIN Zonemasters zm ON z.id = zm.zone_id "
"WHERE z.type = 'SLAVE' "
" AND (z.last_check IS NULL OR z.last_check + z.refresh < :ts)"
"ORDER BY z.id";
static const char *updatedMastersQueryKey = "PDNS_Updated_Masters_Query";
static const char *updatedMastersQueryDefaultSQL =
"SELECT id, name, serial, notified_serial "
"FROM Zones "
"WHERE type = 'MASTER' "
"AND (notified_serial IS NULL OR notified_serial < serial)";
static const char *acceptSupernotificationQueryKey = "PDNS_Accept_Supernotification_Query";
static const char *acceptSupernotificationQueryDefaultSQL =
"SELECT name "
"FROM Supermasters "
"WHERE ip = :ip AND nameserver = lower(:ns)";
static const char *insertSlaveQueryKey = "PDNS_Insert_Slave_Query";
static const char *insertSlaveQueryDefaultSQL =
"INSERT INTO Zones (id, name, type) "
"VALUES (zones_id_seq.NEXTVAL, lower(:zone), 'SLAVE') "
"RETURNING id INTO :zoneid";
static const char *insertMasterQueryKey = "PDNS_Insert_Master_Query";
static const char *insertMasterQueryDefaultSQL =
"INSERT INTO Zonemasters (zone_id, master) "
"VALUES (:zoneid, :ip)";
static const char *prevNextNameQueryKey = "PDNS_Prev_Next_Name_Query";
static const char *prevNextNameQueryDefaultSQL =
"BEGIN\n"
" get_canonical_prev_next(:zoneid, :name, :prev, :next);\n"
"END;";
static const char *prevNextHashQueryKey = "PDNS_Prev_Next_Hash_Query";
static const char *prevNextHashQueryDefaultSQL =
"BEGIN\n"
" get_hashed_prev_next(:zoneid, :hash, :unhashed, :prev, :next);\n"
"END;";
static const char *getZoneMetadataQueryKey = "PDNS_Get_Zone_Metadata";
static const char *getZoneMetadataQueryDefaultSQL =
"SELECT md.meta_content "
"FROM Zones z JOIN ZoneMetadata md ON z.id = md.zone_id "
"WHERE z.name = lower(:name) AND md.meta_type = :kind "
"ORDER BY md.meta_ind";
static const char *delZoneMetadataQueryKey = "PDNS_Del_Zone_Metadata";
static const char *delZoneMetadataQueryDefaultSQL =
"DELETE FROM ZoneMetadata md "
"WHERE zone_id = (SELECT id FROM Zones z WHERE z.name = lower(:name)) "
" AND md.meta_type = :kind";
static const char *setZoneMetadataQueryKey = "PDNS_Set_Zone_Metadata";
static const char *setZoneMetadataQueryDefaultSQL =
"INSERT INTO ZoneMetadata (zone_id, meta_type, meta_ind, meta_content) "
"VALUES ("
" (SELECT id FROM Zones WHERE name = lower(:name)),"
" :kind, :i, :content"
")";
static const char *getTSIGKeyQueryKey = "PDNS_Get_TSIG_Key";
static const char *getTSIGKeyQueryDefaultSQL =
"SELECT algorithm, secret "
"FROM TSIGKeys "
"WHERE name = :name";
static const char *getZoneKeysQueryKey = "PDNS_Get_Zone_Keys";
static const char *getZoneKeysQueryDefaultSQL =
"SELECT k.id, k.flags, k.active, k.keydata "
"FROM ZoneDNSKeys k JOIN Zones z ON z.id = k.zone_id "
"WHERE z.name = lower(:name)";
static const char *delZoneKeyQueryKey = "PDNS_Del_Zone_Key";
static const char *delZoneKeyQueryDefaultSQL =
"DELETE FROM ZoneDNSKeys WHERE id = :keyid";
static const char *addZoneKeyQueryKey = "PDNS_Add_Zone_Key";
static const char *addZoneKeyQueryDefaultSQL =
"INSERT INTO ZoneDNSKeys (id, zone_id, flags, active, keydata) "
"VALUES ("
" zonednskeys_id_seq.NEXTVAL,"
" (SELECT id FROM Zones WHERE name = lower(:name)),"
" :flags,"
" :active,"
" :content"
") RETURNING id INTO :keyid";
static const char *setZoneKeyStateQueryKey = "PDNS_Set_Zone_Key_State";
static const char *setZoneKeyStateQueryDefaultSQL =
"UPDATE ZoneDNSKeys SET active = :active WHERE id = :keyid";
static void
string_to_cbuf (char *buf, const string& s, size_t bufsize)
{
if (s.size() >= bufsize) {
throw std::overflow_error("OracleBackend: string does not fit into char buffer");
}
strncpy(buf, s.c_str(), bufsize);
}
OracleBackend::OracleBackend (const string &suffix, OCIEnv *envh,
char *poolname)
{
setArgPrefix(string("oracle") + suffix);
sword err;
// Initialize everything in a known state
oraenv = envh;
oraerr = NULL;
pooledSvcCtx = NULL;
masterAuthHandle = NULL;
masterSvcCtx = NULL;
curStmtHandle = NULL;
openTransactionZoneID = -1;
// Process configuration options
string_to_cbuf(myServerName, getArg("nameserver-name"), sizeof(myServerName));
basicQuerySQL = getArg("basic-query");
basicIdQuerySQL = getArg("basic-id-query");
anyQuerySQL = getArg("any-query");
anyIdQuerySQL = getArg("any-id-query");
listQuerySQL = getArg("list-query");
zoneInfoQuerySQL = getArg("zone-info-query");
alsoNotifyQuerySQL = getArg("also-notify-query");
zoneMastersQuerySQL = getArg("zone-masters-query");
isZoneMasterQuerySQL = getArg("is-zone-master-query");
deleteZoneQuerySQL = getArg("delete-zone-query");
zoneSetLastCheckQuerySQL = getArg("zone-set-last-check-query");
insertRecordQuerySQL = getArg("insert-record-query");
finalizeAXFRQuerySQL = getArg("finalize-axfr-query");
unfreshZonesQuerySQL = getArg("unfresh-zones-query");
updatedMastersQuerySQL = getArg("updated-masters-query");
acceptSupernotificationQuerySQL = getArg("accept-supernotification-query");
insertSlaveQuerySQL = getArg("insert-slave-query");
insertMasterQuerySQL = getArg("insert-master-query");
zoneSetNotifiedSerialQuerySQL = getArg("zone-set-notified-serial-query");
prevNextNameQuerySQL = getArg("prev-next-name-query");
prevNextHashQuerySQL = getArg("prev-next-hash-query");
getZoneMetadataQuerySQL = getArg("get-zone-metadata-query");
delZoneMetadataQuerySQL = getArg("del-zone-metadata-query");
setZoneMetadataQuerySQL = getArg("set-zone-metadata-query");
getTSIGKeyQuerySQL = getArg("get-tsig-key-query");
getZoneKeysQuerySQL = getArg("get-zone-keys-query");
delZoneKeyQuerySQL = getArg("del-zone-key-query");
addZoneKeyQuerySQL = getArg("add-zone-key-query");
setZoneKeyStateQuerySQL = getArg("set-zone-key-state-query");
// Allocate an error handle
err = OCIHandleAlloc(oraenv, (void**) &oraerr,
OCI_HTYPE_ERROR, 0, NULL);
if (err == OCI_ERROR) {
throw OracleException("OCIHandleAlloc");
}
// Logon to the database
err = OCISessionGet(oraenv, oraerr, &pooledSvcCtx, NULL, (OraText*) poolname, strlen(poolname), NULL, 0, NULL, NULL, NULL, OCI_SESSGET_SPOOL);
if (err == OCI_ERROR) {
throw OracleException("Opening Oracle session", oraerr);
}
}
void
OracleBackend::openMasterConnection ()
{
sword err;
if (masterSvcCtx == NULL) {
err = OCIHandleAlloc(oraenv, (void**) &masterAuthHandle, OCI_HTYPE_AUTHINFO, 0, NULL);
if (err == OCI_ERROR) {
throw OracleException("openMasterConnection: allocating auth handle");
}
string database = getArg("master-database");
string username = getArg("master-username");
string password = getArg("master-password");
err = OCIAttrSet(masterAuthHandle, OCI_HTYPE_AUTHINFO, (void*)username.c_str(), username.size(), OCI_ATTR_USERNAME, oraerr);
if (err == OCI_ERROR) {
throw OracleException("openMasterConnection: setting username");
}
err = OCIAttrSet(masterAuthHandle, OCI_HTYPE_AUTHINFO, (void*)password.c_str(), password.size(), OCI_ATTR_PASSWORD, oraerr);
if (err == OCI_ERROR) {
throw OracleException("openMasterConnection: setting password");
}
err = OCISessionGet(oraenv, oraerr, &masterSvcCtx, masterAuthHandle,
(OraText*)database.c_str(), database.size(),
NULL, 0, NULL, NULL, NULL, OCI_SESSGET_STMTCACHE);
if (err == OCI_ERROR) {
throw OracleException("openMasterConnection OCISessionGet");
}
}
}
OracleBackend::~OracleBackend ()
{
Cleanup();
}
void
OracleBackend::lookup (const QType &qtype, const string &qname,
DNSPacket *p, int zoneId)
{
sword rc;
if (qtype.getCode() != QType::ANY) {
if (zoneId < 0) {
if (curStmtHandle != NULL) throw OracleException("Invalid state");
curStmtHandle = prepare_query(pooledSvcCtx, basicQuerySQL, basicQueryKey);
curStmtKey = basicQueryKey;
define_fwd_query(curStmtHandle);
bind_str_failokay(curStmtHandle, ":nsname", myServerName, sizeof(myServerName));
bind_str(curStmtHandle, ":name", mQueryName, sizeof(mQueryName));
bind_str(curStmtHandle, ":type", mQueryType, sizeof(mQueryType));
} else {
if (curStmtHandle != NULL) throw OracleException("Invalid state");
curStmtHandle = prepare_query(pooledSvcCtx, basicIdQuerySQL, basicIdQueryKey);
curStmtKey = basicIdQueryKey;
define_fwd_query(curStmtHandle);
bind_str_failokay(curStmtHandle, ":nsname", myServerName, sizeof(myServerName));
bind_str(curStmtHandle, ":name", mQueryName, sizeof(mQueryName));
bind_str(curStmtHandle, ":type", mQueryType, sizeof(mQueryType));
bind_int(curStmtHandle, ":zoneid", &mQueryZoneId);
}
} else {
if (zoneId < 0) {
if (curStmtHandle != NULL) throw OracleException("Invalid state");
curStmtHandle = prepare_query(pooledSvcCtx, anyQuerySQL, anyQueryKey);
curStmtKey = anyQueryKey;
define_fwd_query(curStmtHandle);
bind_str_failokay(curStmtHandle, ":nsname", myServerName, sizeof(myServerName));
bind_str(curStmtHandle, ":name", mQueryName, sizeof(mQueryName));
} else {
if (curStmtHandle != NULL) throw OracleException("Invalid state");
curStmtHandle = prepare_query(pooledSvcCtx, anyIdQuerySQL, anyIdQueryKey);
curStmtKey = anyIdQueryKey;
define_fwd_query(curStmtHandle);
bind_str_failokay(curStmtHandle, ":nsname", myServerName, sizeof(myServerName));
bind_str(curStmtHandle, ":name", mQueryName, sizeof(mQueryName));
bind_int(curStmtHandle, ":zoneid", &mQueryZoneId);
}
}
string_to_cbuf(mQueryName, qname, sizeof(mQueryName));
string_to_cbuf(mQueryType, qtype.getName(), sizeof(mQueryType));
mQueryZoneId = zoneId;
rc = OCIStmtExecute(pooledSvcCtx, curStmtHandle, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle Lookup", oraerr);
}
if (rc == OCI_NO_DATA) {
release_query(curStmtHandle, curStmtKey);
curStmtHandle = NULL;
}
}
bool
OracleBackend::getBeforeAndAfterNames (
uint32_t zoneId, const string& zone,
const string& name, string& before, string& after)
{
sword rc;
OCIStmt *stmt;
(void)zone;
stmt = prepare_query(pooledSvcCtx, prevNextNameQuerySQL, prevNextNameQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_str(stmt, ":name", mQueryName, sizeof(mQueryName));
bind_str_ind(stmt, ":prev", mResultPrevName, sizeof(mResultPrevName), &mResultPrevNameInd);
bind_str_ind(stmt, ":next", mResultNextName, sizeof(mResultNextName), &mResultNextNameInd);
bind_uint32(stmt, ":zoneid", &zoneId);
string_to_cbuf(mQueryName, name, sizeof(mQueryName));
mResultPrevNameInd = -1;
mResultNextNameInd = -1;
rc = OCIStmtExecute(pooledSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException(
"Oracle getBeforeAndAfterNames", oraerr
);
}
check_indicator(mResultPrevNameInd, false);
check_indicator(mResultNextNameInd, false);
before = mResultPrevName;
after = mResultNextName;
release_query(stmt, prevNextNameQueryKey);
return true;
}
bool
OracleBackend::getBeforeAndAfterNamesAbsolute(uint32_t zoneId,
const string& name, string& unhashed, string& before, string& after)
{
sword rc;
OCIStmt *stmt;
stmt = prepare_query(pooledSvcCtx, prevNextHashQuerySQL, prevNextHashQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_str(stmt, ":hash", mQueryName, sizeof(mQueryName));
bind_str_ind(stmt, ":unhashed", mResultName, sizeof(mResultName), &mResultNameInd);
bind_str_ind(stmt, ":prev", mResultPrevName, sizeof(mResultPrevName), &mResultPrevNameInd);
bind_str_ind(stmt, ":next", mResultNextName, sizeof(mResultNextName), &mResultNextNameInd);
bind_uint32(stmt, ":zoneid", &zoneId);
string_to_cbuf(mQueryName, name, sizeof(mQueryName));
mResultNameInd = -1;
mResultPrevNameInd = -1;
mResultNextNameInd = -1;
rc = OCIStmtExecute(pooledSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException(
"Oracle getBeforeAndAfterNamesAbsolute", oraerr
);
}
check_indicator(mResultNameInd, false);
check_indicator(mResultPrevNameInd, false);
check_indicator(mResultNextNameInd, false);
unhashed = mResultName;
before = mResultPrevName;
after = mResultNextName;
release_query(stmt, prevNextHashQueryKey);
return true;
}
vector<string>
OracleBackend::getDomainMasters (const string &domain, int zoneId)
{
sword rc;
OCIStmt *stmt;
(void)domain;
vector<string> masters;
char master[512];
sb2 master_ind;
openMasterConnection();
stmt = prepare_query(masterSvcCtx, zoneMastersQuerySQL, zoneMastersQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_int(stmt, ":zoneid", &mQueryZoneId);
mQueryZoneId = zoneId;
define_output_str(stmt, 1, &master_ind, master, sizeof(master));
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle getDomainMasters", oraerr);
}
while (rc != OCI_NO_DATA) {
check_indicator(master_ind, false);
masters.push_back(master);
rc = OCIStmtFetch2(stmt, oraerr, 1, OCI_FETCH_NEXT, 0, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException(
"OracleBackend, fetching next zone master", oraerr
);
}
}
release_query(stmt, zoneMastersQueryKey);
return masters;
}
bool
OracleBackend::isMaster (const string &domain, const string &master)
{
sword rc;
OCIStmt *stmt;
openMasterConnection();
stmt = prepare_query(masterSvcCtx, isZoneMasterQuerySQL, isZoneMasterQueryKey);
string_to_cbuf(mQueryZone, domain, sizeof(mQueryZone));
string_to_cbuf(mQueryName, master, sizeof(mQueryName));
char res_master[512];
sb2 res_master_ind;
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_str(stmt, ":name", mQueryZone, sizeof(mQueryZone));
bind_str(stmt, ":master", mQueryName, sizeof(mQueryName));
define_output_str(stmt, 1, &res_master_ind, res_master, sizeof(res_master));
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle isMaster", oraerr);
}
release_query(stmt, isZoneMasterQueryKey);
if (rc != OCI_NO_DATA) {
check_indicator(res_master_ind, false);
return true;
}
return false;
}
bool
OracleBackend::getDomainInfo (const string &domain, DomainInfo &di)
{
sword rc;
OCIStmt *stmt;
int zone_id;
sb2 zone_id_ind;
int last_check;
sb2 last_check_ind;
uint32_t serial;
sb2 serial_ind;
uint32_t notified_serial;
sb2 notified_serial_ind;
openMasterConnection();
stmt = prepare_query(masterSvcCtx, zoneInfoQuerySQL, zoneInfoQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
define_output_int(stmt, 1, &zone_id_ind, &zone_id);
define_output_str(stmt, 2, &mResultNameInd, mResultName, sizeof(mResultName));
define_output_str(stmt, 3, &mResultTypeInd, mResultType, sizeof(mResultType));
define_output_int(stmt, 4, &last_check_ind, &last_check);
define_output_uint32(stmt, 5, &serial_ind, &serial);
define_output_uint32(stmt, 6, ¬ified_serial_ind, ¬ified_serial);
string_to_cbuf(mQueryZone, domain, sizeof(mQueryZone));
bind_str(stmt, ":name", mQueryZone, sizeof(mQueryZone));
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle getDomainInfo", oraerr);
}
if (rc == OCI_NO_DATA) {
release_query(stmt, zoneInfoQueryKey);
return false;
}
check_indicator(zone_id_ind, false);
check_indicator(mResultNameInd, false);
check_indicator(serial_ind, true);
if (zone_id < 0) throw std::underflow_error("OracleBackend: Zone ID < 0 when writing into uint32_t");
di.id = zone_id;
di.zone = mResultName;
di.serial = serial;
di.backend = this;
check_indicator(mResultTypeInd, false);
if (strcasecmp(mResultType, "NATIVE") == 0) {
di.kind = DomainInfo::Native;
} else if (strcasecmp(mResultType, "MASTER") == 0) {
di.kind = DomainInfo::Master;
check_indicator(notified_serial_ind, false);
di.notified_serial = notified_serial;
} else if (strcasecmp(mResultType, "SLAVE") == 0) {
di.kind = DomainInfo::Slave;
check_indicator(last_check_ind, true);
di.last_check = last_check;
di.masters = getDomainMasters(mResultName, zone_id);
} else {
throw OracleException("Unknown zone type in Oracle backend");
}
di.kind = DomainInfo::Native;
release_query(stmt, zoneInfoQueryKey);
return true;
}
void OracleBackend::alsoNotifies(const string &domain, set<string> *addrs)
{
sword rc;
OCIStmt *stmt;
char hostaddr[512];
sb2 hostaddr_ind;
openMasterConnection();
stmt = prepare_query(masterSvcCtx, alsoNotifyQuerySQL, alsoNotifyQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_str(stmt, ":name", mQueryZone, sizeof(mQueryZone));
string_to_cbuf(mQueryZone, domain, sizeof(mQueryZone));
define_output_str(stmt, 1, &hostaddr_ind, hostaddr, sizeof(hostaddr));
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle alsoNotifies", oraerr);
}
while (rc != OCI_NO_DATA) {
check_indicator(hostaddr_ind, false);
addrs->insert(hostaddr);
rc = OCIStmtFetch2(stmt, oraerr, 1, OCI_FETCH_NEXT, 0, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException(
"OracleBackend alsoNotifies fetch", oraerr
);
}
}
release_query(stmt, alsoNotifyQueryKey);
}
void
OracleBackend::getUnfreshSlaveInfos (vector<DomainInfo>* domains)
{
sword rc;
OCIStmt *stmt;
struct timeval now;
gettimeofday(&now, NULL);
mQueryTimestamp = now.tv_sec;
int last_check;
sb2 last_check_ind;
uint32_t serial;
sb2 serial_ind;
char master[512];
sb2 master_ind;
openMasterConnection();
stmt = prepare_query(masterSvcCtx, unfreshZonesQuerySQL, unfreshZonesQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_int(stmt, ":ts", &mQueryTimestamp);
define_output_int(stmt, 1, &mResultZoneIdInd, &mResultZoneId);
define_output_str(stmt, 2, &mResultNameInd, mResultName, sizeof(mResultName));
define_output_int(stmt, 3, &last_check_ind, &last_check);
define_output_uint32(stmt, 4, &serial_ind, &serial);
define_output_str(stmt, 5, &master_ind, master, sizeof(master));
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle getUnfreshSlaveInfos", oraerr);
}
while (rc != OCI_NO_DATA) {
check_indicator(mResultZoneIdInd, false);
check_indicator(mResultNameInd, false);
check_indicator(serial_ind, true);
check_indicator(last_check_ind, true);
int zoneId = mResultZoneId;
if (mResultZoneId < 0) throw std::underflow_error("OracleBackend: Zone ID < 0 when writing into uint32_t");
DomainInfo di;
di.id = mResultZoneId;
di.zone = mResultName;
di.last_check = last_check;
di.kind = DomainInfo::Slave;
di.backend = this;
if (serial_ind == 0) {
di.serial = serial;
}
while (rc != OCI_NO_DATA && zoneId == mResultZoneId) {
check_indicator(master_ind, false);
di.masters.push_back(master);
rc = OCIStmtFetch2(stmt, oraerr, 1, OCI_FETCH_NEXT, 0, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException(
"OracleBackend, fetching next unfresh slave master", oraerr
);
}
check_indicator(mResultZoneIdInd, false);
}
domains->push_back(di);
}
release_query(stmt, unfreshZonesQueryKey);
}
void
OracleBackend::getUpdatedMasters (vector<DomainInfo>* domains)
{
sword rc;
OCIStmt *stmt;
uint32_t serial;
sb2 serial_ind;
uint32_t notified_serial;
sb2 notified_serial_ind;
openMasterConnection();
stmt = prepare_query(masterSvcCtx, updatedMastersQuerySQL, updatedMastersQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
define_output_int(stmt, 1, &mResultZoneIdInd, &mResultZoneId);
define_output_str(stmt, 2, &mResultNameInd, mResultName, sizeof(mResultName));
define_output_uint32(stmt, 3, &serial_ind, &serial);
define_output_uint32(stmt, 4, ¬ified_serial_ind, ¬ified_serial);
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle getUpdatedMasters", oraerr);
}
while (rc != OCI_NO_DATA) {
check_indicator(mResultZoneIdInd, false);
check_indicator(mResultNameInd, false);
check_indicator(serial_ind, false);
check_indicator(notified_serial_ind, true);
if (mResultZoneId < 0) throw std::underflow_error("OracleBackend: Zone ID < 0 when writing into uint32_t");
DomainInfo di;
di.id = mResultZoneId;
di.zone = mResultName;
di.serial = serial;
di.notified_serial = notified_serial;
di.kind = DomainInfo::Master;
di.backend = this;
domains->push_back(di);
rc = OCIStmtFetch2(stmt, oraerr, 1, OCI_FETCH_NEXT, 0, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException(
"OracleBackend, fetching next updated master", oraerr
);
}
}
release_query(stmt, updatedMastersQueryKey);
}
void
OracleBackend::setFresh (uint32_t zoneId)
{
sword rc;
OCIStmt *stmt;
mQueryZoneId = zoneId;
struct timeval now;
gettimeofday(&now, NULL);
mQueryTimestamp = now.tv_sec;
openMasterConnection();
rc = OCITransStart(masterSvcCtx, oraerr, 60, OCI_TRANS_NEW);
if (rc == OCI_ERROR) {
throw OracleException("Oracle setFresh BEGIN", oraerr);
}
stmt = prepare_query(masterSvcCtx, zoneSetLastCheckQuerySQL, zoneSetLastCheckQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_int(stmt, ":zoneid", &mQueryZoneId);
bind_int(stmt, ":lastcheck", &mQueryTimestamp);
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle setFresh", oraerr);
}
release_query(stmt, zoneSetLastCheckQueryKey);
rc = OCITransCommit(masterSvcCtx, oraerr, OCI_DEFAULT);
if (rc) {
throw OracleException("Oracle setFresh COMMIT", oraerr);
}
}
void
OracleBackend::setNotified (uint32_t zoneId, uint32_t serial)
{
sword rc;
OCIStmt *stmt;
openMasterConnection();
rc = OCITransStart(masterSvcCtx, oraerr, 60, OCI_TRANS_NEW);
if (rc == OCI_ERROR) {
throw OracleException("Oracle setNotified BEGIN", oraerr);
}
stmt = prepare_query(masterSvcCtx, zoneSetNotifiedSerialQuerySQL, zoneSetNotifiedSerialQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_uint32(stmt, ":serial", &serial);
bind_uint32(stmt, ":zoneid", &zoneId);
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle setNotified", oraerr);
}
release_query(stmt, zoneSetNotifiedSerialQueryKey);
rc = OCITransCommit(masterSvcCtx, oraerr, OCI_DEFAULT);
if (rc) {
throw OracleException("Oracle setNotified COMMIT", oraerr);
}
}
bool
OracleBackend::list (const string &domain, int zoneId)
{
sword rc;
// This is only for backends that cannot lookup by zoneId,
// we can discard
(void)domain;
if (curStmtHandle != NULL) throw OracleException("Invalid state");
curStmtHandle = prepare_query(pooledSvcCtx, listQuerySQL, listQueryKey);
curStmtKey = listQueryKey;
define_fwd_query(curStmtHandle);
bind_str_failokay(curStmtHandle, ":nsname", myServerName, sizeof(myServerName));
bind_int(curStmtHandle, ":zoneid", &mQueryZoneId);
mQueryZoneId = zoneId;
rc = OCIStmtExecute(pooledSvcCtx, curStmtHandle, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle List", oraerr);
}
if (rc == OCI_SUCCESS || rc == OCI_SUCCESS_WITH_INFO) {
return true;
}
if (rc == OCI_NO_DATA) {
release_query(curStmtHandle, curStmtKey);
curStmtHandle = NULL;
}
return false;
}
bool OracleBackend::get (DNSResourceRecord &rr)
{
sword rc;
if (curStmtHandle == NULL) {
return false;
}
check_indicator(mResultNameInd, false);
check_indicator(mResultTTLInd, false);
check_indicator(mResultTypeInd, false);
check_indicator(mResultContentInd, false);
check_indicator(mResultZoneIdInd, false);
check_indicator(mResultLastChangeInd, false);
check_indicator(mResultIsAuthInd, false);
rr.qname = mResultName;
rr.ttl = mResultTTL;
rr.qtype = mResultType;
rr.domain_id = mResultZoneId;
rr.last_modified = mResultLastChange;
rr.auth = mResultIsAuth > 0;
if ((rr.qtype.getCode() == QType::MX) || (rr.qtype.getCode() == QType::SRV)) {
unsigned priority = 0;
int skip = 0;
sscanf(mResultContent, "%u %n", &priority, &skip);
rr.priority = priority;
rr.content = mResultContent + skip;
} else {
rr.content = mResultContent;
}
rc = OCIStmtFetch2(curStmtHandle, oraerr, 1, OCI_FETCH_NEXT, 0, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("OracleBackend, fetching next row", oraerr);
}
if (rc == OCI_NO_DATA) {
release_query(curStmtHandle, curStmtKey);
curStmtHandle = NULL;
}
return true;
}
bool
OracleBackend::startTransaction (const string &domain, int zoneId)
{
sword rc;
OCIStmt *stmt;
(void)domain;
openMasterConnection();
rc = OCITransStart(masterSvcCtx, oraerr, 60, OCI_TRANS_NEW);
if (rc == OCI_ERROR) {
throw OracleException("Oracle startTransaction", oraerr);
}
if (zoneId >= 0) {
if (openTransactionZoneID >= 0) {
throw OracleException("Attempt to start AXFR during AXFR");
}
mQueryZoneId = openTransactionZoneID = zoneId;
stmt = prepare_query(masterSvcCtx, deleteZoneQuerySQL, deleteZoneQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_int(stmt, ":zoneid", &mQueryZoneId);
rc = OCIStmtExecute(masterSvcCtx, stmt, oraerr, 1, 0, NULL, NULL, OCI_DEFAULT);
if (rc == OCI_ERROR) {
throw OracleException("Oracle startTransaction deleteZone", oraerr);
}
release_query(stmt, deleteZoneQueryKey);
}
return true;
}
bool
OracleBackend::feedRecord (const DNSResourceRecord &rr)
{
sword rc;
OCIStmt *stmt;
uint32_t ttl;
char content[4001];
stmt = prepare_query(masterSvcCtx, insertRecordQuerySQL, insertRecordQueryKey);
bind_str_failokay(stmt, ":nsname", myServerName, sizeof(myServerName));
bind_int(stmt, ":zoneid", &mQueryZoneId);
bind_str(stmt, ":name", mQueryName, sizeof(mQueryName));
bind_str(stmt, ":type", mQueryType, sizeof(mQueryType));
bind_uint32(stmt, ":ttl", &ttl);
bind_str(stmt, ":content", content, sizeof(content));
mQueryZoneId = rr.domain_id;
string_to_cbuf(mQueryName, rr.qname, sizeof(mQueryName));
ttl = rr.ttl;
string_to_cbuf(mQueryType, rr.qtype.getName(), sizeof(mQueryType));
if (rr.qtype.getCode() == QType::MX || rr.qtype.getCode() == QType::SRV) {