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RasTbl.cxx
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RasTbl.cxx
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//////////////////////////////////////////////////////////////////
//
// bookkeeping for RAS-Server in H.323 gatekeeper
//
// Copyright (c) 2000-2023, Jan Willamowius
//
// This work is published under the GNU Public License version 2 (GPLv2)
// see file COPYING for details.
// We also explicitly grant the right to link this code
// with the OpenH323/H323Plus and OpenSSL library.
//
//////////////////////////////////////////////////////////////////
#include <time.h>
#include <ptlib.h>
#include <h323.h>
#include <h323pdu.h>
#include "h323util.h"
#include "Toolkit.h"
#include "stl_supp.h"
#include "SoftPBX.h"
#include "RasSrv.h"
#include "GkClient.h"
#include "GkStatus.h"
#include "ProxyChannel.h"
#include "Neighbor.h"
#include "gkacct.h"
#include "RasTbl.h"
#include "gk.h"
#include "gk_const.h"
#include "config.h"
#ifdef H323_H350
#include <h350/h350_service.h>
#endif
#ifdef HAS_H460
#include <h460/h4601.h>
#include <h460/h4609.h>
#ifdef HAS_H46024B
#include <h460/h46024b.h>
#endif
#endif
#ifdef HAS_AVAYA_SUPPORT
#include "avaya.h"
#endif
using std::copy;
using std::partition;
using std::back_inserter;
using std::transform;
#if (__cplusplus < 201703L) // before C++17
using std::mem_fun;
using std::bind2nd;
#endif
using std::equal_to;
using std::find;
using std::find_if;
using std::distance;
using std::sort;
using std::string;
using Routing::Route;
const char *CallTableSection = "CallTable";
const char *RRQFeaturesSection = "RasSrv::RRQFeatures";
const char *proxysection = "Proxy";
namespace {
const long DEFAULT_SIGNAL_TIMEOUT = 30000;
const long DEFAULT_ALERTING_TIMEOUT = 180000;
const int DEFAULT_IRQ_POLL_COUNT = 1;
}
PString PortTypeAsString(PortType t)
{
switch (t) {
case 1: return "RAS";
case 2: return "Q.931";
case 3: return "H.245";
case 4: return "RTP";
case 5: return "T.120";
case 6: return "Radius";
case 7: return "Status";
default: return PString(t);
}
}
/////////////////////////////////////////////////////////////////////////////////
void EPQoS::Init()
{
m_lastMsg = 0;
m_numCalls = 0;
m_audioPacketLossPercent = 0.0;
m_audioJitter = 0;
m_videoPacketLossPercent = 0.0;
m_videoJitter = 0;
}
PString EPQoS::AsString() const
{
return PString(PString::Printf, "%s|%d|%0.2f%%|%lu|%0.2f%%|%lu",
(const char*)m_lastMsg.AsString(PTime::LongISO8601, PTime::UTC), m_numCalls,
m_audioPacketLossPercent, m_audioJitter, m_videoPacketLossPercent, m_videoJitter);
}
/////////////////////////////////////////////////////////////////////////////////
EndpointRec::EndpointRec(
/// RRQ, ARQ, ACF or LCF that contains a description of the endpoint
const H225_RasMessage & ras,
/// permanent endpoint flag
bool permanent)
: m_RasMsg(ras), m_endpointVendor(NULL), m_timeToLive(1),
m_defaultKeepAliveInterval(GkConfig()->GetInteger(RoutedSec, "H46018KeepAliveInterval", 19)),
m_activeCall(0), m_connectedCall(0), m_totalCall(0),
m_pollCount(GkConfig()->GetInteger(RRQFeaturesSection, "IRQPollCount", DEFAULT_IRQ_POLL_COUNT)),
m_usedCount(0), m_nat(false), m_natsocket(NULL), m_permanent(permanent),
m_hasCallCreditCapabilities(false), m_callCreditSession(-1),
m_capacity(-1), m_calledTypeOfNumber(-1), m_callingTypeOfNumber(-1),
m_calledPlanOfNumber(-1), m_callingPlanOfNumber(-1), m_proxy(0),
m_registrationPriority(0), m_registrationPreemption(false),
m_epnattype(NatUnknown),
#ifdef HAS_AVAYA_SUPPORT
m_hookstate(hsUnknown), m_ccmsCall(NULL), m_nextcrv(32767),
#endif
m_usesH46023(false), m_H46024(GkConfig()->GetBoolean(RoutedSec, "H46023PublicIP", false)),
m_H46024a(false), m_H46024b(false), m_natproxy(GkConfig()->GetBoolean(proxysection, "ProxyForNAT", false)),
m_internal(false), m_remote(false), m_h46017disabled(false), m_h46018disabled(false), m_usesH460P(false), m_hasH460PData(false),
m_usesH46017(false), m_usesH46026(false), m_traversalType(None), m_bandwidth(0), m_maxBandwidth(-1), m_useTLS(false),
m_useIPSec(false), m_additiveRegistrant(false), m_addCallingPartyToSourceAddress(false), m_forceTerminalType(-1), m_forceDirectMode(false), m_authenticators(NULL),
m_hasGnuGkAssignedGk(false)
{
static H225_EndpointType defaultTermType; // nouse
m_terminalType = &defaultTermType;
m_registrationTime = PTime();
switch (m_RasMsg.GetTag())
{
case H225_RasMessage::e_registrationRequest:
SetEndpointRec((H225_RegistrationRequest &)m_RasMsg);
PTRACE(1, "New EP|" << PrintOn(false).Trim());
break;
case H225_RasMessage::e_admissionRequest:
SetEndpointRec((H225_AdmissionRequest &)m_RasMsg);
break;
case H225_RasMessage::e_admissionConfirm:
SetEndpointRec((H225_AdmissionConfirm &)m_RasMsg);
break;
case H225_RasMessage::e_locationConfirm:
SetEndpointRec((H225_LocationConfirm &)m_RasMsg);
break;
case H225_RasMessage::e_unregistrationRequest:
SetEndpointRec((H225_UnregistrationRequest&)m_RasMsg);
break;
default: // should not happen
break;
}
if (permanent)
m_timeToLive = 0;
SetInvalid(m_rasServerIP);
LoadEndpointConfig();
}
const int aliasCount = 6;
const static POrdinalToString::Initialiser H225AliasTypes[aliasCount] =
{
{H225_AliasAddress::e_h323_ID, "h323id"},
{H225_AliasAddress::e_dialedDigits, "dialeddigits"},
{H225_AliasAddress::e_url_ID, "url"},
{H225_AliasAddress::e_transportID, "transport"},
{H225_AliasAddress::e_email_ID, "email"},
{H225_AliasAddress::e_partyNumber, "partynumber"}
};
const static POrdinalToString h225aliastypes(aliasCount, H225AliasTypes);
const int endpointcount = 4;
const static PStringToOrdinal::Initialiser H225EndpointTypes[endpointcount] =
{
{"gatekeeper", H225_EndpointType::e_gatekeeper},
{"gateway", H225_EndpointType::e_gateway},
{"mcu", H225_EndpointType::e_mcu},
{"terminal", H225_EndpointType::e_terminal}
};
const static PStringToOrdinal h225endpointtypes(endpointcount, H225EndpointTypes, false);
#ifdef HAS_AVAYA_SUPPORT
const int hookstateCount = 3;
const static char * HookStateString[hookstateCount] = {"Unknown", "Onhook", "Offhook"};
PString EndpointRec::GetHookString() const {
if ((m_hookstate >= 0) && (m_hookstate < hookstateCount)) {
return HookStateString[m_hookstate];
}
return HookStateString[0];
};
#endif
void EndpointRec::LoadAliases(const H225_ArrayOf_AliasAddress & aliases, const H225_EndpointType & type)
{
PWaitAndSignal lock(m_usedLock);
m_terminalAliases.SetSize(0); // clear current alias
PStringToString kv = GkConfig()->GetAllKeyValues(RRQFeaturesSection);
for (PINDEX r = 0; r < kv.GetSize(); r++) {
if (kv.GetKeyAt(r) == "AliasTypeFilter") {
PStringList entries = kv.GetDataAt(r).ToLower().Tokenise("\r\n", false);
for (PINDEX e = 0; e < entries.GetSize(); e++) {
PStringList filtertype = entries[e].Tokenise(";", false);
// Malformed key
if (filtertype.GetSize() != 2) {
PTRACE(3, "Malformed AliasTypeFilter: " << entries[e]);
continue;
}
if (!h225endpointtypes.Contains(filtertype[0])) {
PTRACE(3, "Malformed AliasTypeFilter - invalid enpoint type: " << entries[e]);
continue;
}
// filter does not match endpoint type
if (!type.HasOptionalField(h225endpointtypes[filtertype[0]])) {
continue;
}
PTRACE(5, "Filter rule matched: AliasTypeFilter=" << entries[e]);
PStringList filterlist = filtertype[1].ToLower().Tokenise(",", false);
for (PINDEX i = 0; i< aliases.GetSize(); i++) {
PString aliasType = h225aliastypes[aliases[i].GetTag()];
for (PINDEX j = 0; j < filterlist.GetSize(); j++) {
if (aliasType == filterlist[j]) {
m_terminalAliases.SetSize(m_terminalAliases.GetSize() + 1);
m_terminalAliases[m_terminalAliases.GetSize() - 1] = aliases[i];
}
}
}
}
}
}
// If no filter or none match the filter than just add whatever is there
if (m_terminalAliases.GetSize() == 0) {
m_terminalAliases = aliases;
}
}
void EndpointRec::SetEndpointRec(H225_RegistrationRequest & rrq)
{
if (rrq.m_rasAddress.GetSize() > 0) {
m_rasAddress = rrq.m_rasAddress[0];
} else {
m_rasAddress.SetTag(H225_TransportAddress::e_nonStandardAddress);
}
if (rrq.m_callSignalAddress.GetSize() > 0) {
m_callSignalAddress = rrq.m_callSignalAddress[0];
} else {
m_callSignalAddress.SetTag(H225_TransportAddress::e_nonStandardAddress);
}
m_endpointIdentifier = rrq.m_endpointIdentifier;
LoadAliases(rrq.m_terminalAlias,rrq.m_terminalType);
m_terminalType = &rrq.m_terminalType;
m_endpointVendor = new H225_VendorIdentifier(rrq.m_endpointVendor);
if (rrq.HasOptionalField(H225_RegistrationRequest::e_timeToLive))
SetTimeToLive(rrq.m_timeToLive);
else
SetTimeToLive(SoftPBX::TimeToLive);
m_fromParent = false;
m_hasCallCreditCapabilities = rrq.HasOptionalField(H225_RegistrationRequest::e_callCreditCapability);
if (m_permanent) {
PIPSocket::Address ipaddr;
GetIPFromTransportAddr(rrq.m_callSignalAddress[0], ipaddr);
m_internal = Toolkit::Instance()->IsInternal(ipaddr);
m_remote = true;
}
}
void EndpointRec::SetEndpointRec(H225_AdmissionRequest & arq)
{
// we set it to non-standard address to avoid misuse
m_rasAddress.SetTag(H225_TransportAddress::e_nonStandardAddress);
m_callSignalAddress = arq.m_destCallSignalAddress;
m_timeToLive = (SoftPBX::TimeToLive > 0) ? SoftPBX::TimeToLive : 600;
m_fromParent = false;
m_remote = true;
}
void EndpointRec::SetEndpointRec(H225_AdmissionConfirm & acf)
{
// there is no RAS address in ACF
// we set it to non-standard address to avoid misuse
m_rasAddress.SetTag(H225_TransportAddress::e_nonStandardAddress);
m_callSignalAddress = acf.m_destCallSignalAddress;
if (acf.HasOptionalField(H225_AdmissionConfirm::e_destinationInfo))
m_terminalAliases = acf.m_destinationInfo;
if (!acf.HasOptionalField(H225_AdmissionConfirm::e_destinationType))
acf.IncludeOptionalField(H225_AdmissionConfirm::e_destinationType);
m_terminalType = &acf.m_destinationType;
m_timeToLive = (SoftPBX::TimeToLive > 0) ? SoftPBX::TimeToLive : 600;
m_fromParent = true;
m_remote = true;
}
void EndpointRec::SetEndpointRec(H225_LocationConfirm & lcf)
{
m_rasAddress = lcf.m_rasAddress;
m_callSignalAddress = lcf.m_callSignalAddress;
if (lcf.HasOptionalField(H225_LocationConfirm::e_destinationInfo))
m_terminalAliases = lcf.m_destinationInfo;
if (!lcf.HasOptionalField(H225_LocationConfirm::e_destinationType))
lcf.IncludeOptionalField(H225_LocationConfirm::e_destinationType);
m_terminalType = &lcf.m_destinationType;
m_timeToLive = (SoftPBX::TimeToLive > 0) ? SoftPBX::TimeToLive : 600;
m_fromParent = false;
m_remote = true;
#ifdef HAS_H46018
if (Toolkit::Instance()->IsH46018Enabled()) {
// find neighbor object to see if we have to use H.460.18
PIPSocket::Address socketAddr;
if (GetIPFromTransportAddr(m_rasAddress, socketAddr)) {
NeighborList::List & neighbors = *RasServer::Instance()->GetNeighbors();
#if (__cplusplus >= 201703L) // C++17
NeighborList::List::iterator iter = find_if(neighbors.begin(), neighbors.end(), std::bind(&Neighbors::Neighbor::IsFrom, std::placeholders::_1, &socketAddr));
#else
NeighborList::List::iterator iter = find_if(neighbors.begin(), neighbors.end(), bind2nd(mem_fun(&Neighbors::Neighbor::IsFrom), &socketAddr));
#endif
if (iter != neighbors.end()) {
if ((*iter)->IsH46018Server()) {
m_traversalType = TraversalServer;
}
}
}
}
#endif
#ifdef HAS_H460
if (lcf.HasOptionalField(H225_LocationConfirm::e_genericData)) {
H225_ArrayOf_GenericData & data = lcf.m_genericData;
for (PINDEX i = 0; i < data.GetSize(); i++) {
H460_Feature & feat = (H460_Feature &)data[i];
#ifdef HAS_H46023
if (Toolkit::Instance()->IsH46023Enabled()) {
if (feat.GetFeatureID() == H460_FeatureID(24)) {
H460_FeatureStd & std24 = (H460_FeatureStd &)data[i];
if (std24.Contains(Std24_RemoteNAT)) { /// Remote supports remote NAT
PBoolean supNAT = std24.Value(Std24_RemoteNAT);
SetH46024(supNAT);
}
if (std24.Contains(Std24_IsNAT)) { /// Remote EP is Nated
PBoolean isnat = std24.Value(Std24_IsNAT);
SetNAT(isnat);
if (isnat) {
PIPSocket::Address addr;
GetIPFromTransportAddr(lcf.m_callSignalAddress,addr);
SetNATAddress(addr);
}
}
if (std24.Contains(Std24_NATdet)) { /// Remote type of NAT
unsigned ntype = std24.Value(Std24_NATdet);
SetEPNATType(ntype);
}
if (std24.Contains(Std24_ProxyNAT)) { /// Whether the remote GK can proxy
PBoolean supProxy = std24.Value(Std24_ProxyNAT);
SetNATProxy(supProxy);
}
if (std24.Contains(Std24_SourceAddr)) { /// ApparentSourceAddress
H323TransportAddress ta = std24.Value(Std24_SourceAddr);
PIPSocket::Address addr;
ta.GetIpAddress(addr);
SetNATAddress(addr);
}
if (std24.Contains(Std24_MustProxy)) { /// Whether this EP must proxy through GK
PBoolean mustProxy = std24.Value(Std24_MustProxy);
SetInternal(mustProxy);
}
if (std24.Contains(Std24_AnnexA)) { /// Whether this EP supports H.460.24 Annex A
PBoolean annexA = std24.Value(Std24_AnnexA);
SetH46024A(annexA);
}
if (std24.Contains(Std24_AnnexB)) { /// Whether this EP supports H.460.24 Annex B
PBoolean annexB = std24.Value(Std24_AnnexB);
SetH46024B(annexB);
}
}
}
#endif
#ifdef HAS_H460VEN
/// OID9 Vendor Information
if (feat.GetFeatureID() == H460_FeatureID(OpalOID(OID9))) {
H460_FeatureOID & oid9 = (H460_FeatureOID &)data[i];
PString m_vendor = oid9.Value(PString(VendorProdOID)); // Vendor Information
PString m_version = oid9.Value(PString(VendorVerOID)); // Version Information
SetEndpointInfo(m_vendor, m_version);
}
#endif // HAS_H460VEN
}
}
#endif
}
// used for temporary objects in accounting of additive registrations
void EndpointRec::SetEndpointRec(H225_UnregistrationRequest & urq)
{
if (urq.m_callSignalAddress.GetSize() > 0)
m_callSignalAddress = urq.m_callSignalAddress[0];
else
m_callSignalAddress.SetTag(H225_TransportAddress::e_nonStandardAddress);
m_endpointIdentifier = urq.m_endpointIdentifier;
SetAliases(urq.m_endpointAlias);
}
EndpointRec::~EndpointRec()
{
PWaitAndSignal lock(m_usedLock);
PTRACE(3, "Gk\tDelete endpoint: " << m_endpointIdentifier.GetValue() << " " << m_usedCount);
#ifdef HAS_AVAYA_SUPPORT
/* Avaya hack */
if (m_ccmsCall) {
CallSignalSocket * css = m_ccmsCall->GetCallSignalSocketCalling();
if (css)
css->RemoveCall();
css = m_ccmsCall->GetCallSignalSocketCalled();
if (css)
css->RemoveCall();
m_ccmsCall->SetSocket(NULL, NULL);
delete m_ccmsCall;
m_ccmsCall = NULL;
}
#endif
if (m_endpointVendor) {
delete m_endpointVendor;
m_endpointVendor = NULL;
}
SetUsesH460P(false);
if (m_natsocket) {
m_natsocket->Close();
m_natsocket->SetConnected(false);
m_natsocket->SetDeletable();
}
delete m_authenticators;
}
bool EndpointRec::LoadConfig()
{
PWaitAndSignal lock(m_usedLock);
LoadEndpointConfig();
return true;
}
void EndpointRec::LoadEndpointConfig()
{
Toolkit* toolkit = Toolkit::Instance();
PConfig* const cfg = GkConfig();
const PStringList sections = cfg->GetSections();
m_prefixCapacities.clear(); // clear capacity settings
m_activePrefixCalls.clear(); // we loose call stats on Reload, but capacities may have changed
bool setDefaults = true;
for (PINDEX i = 0; i < m_terminalAliases.GetSize(); i++) {
const PString key = "EP::" + AsString(m_terminalAliases[i], FALSE);
if (sections.GetStringsIndex(key) != P_MAX_INDEX) {
setDefaults = false;
m_capacity = cfg->GetInteger(key, "Capacity", -1);
AddPrefixCapacities(cfg->GetString(key, "PrefixCapacities", ""));
int type = cfg->GetInteger(key, "CalledTypeOfNumber", -1);
if (type == -1)
m_calledTypeOfNumber = toolkit->Config()->GetInteger(RoutedSec, "CalledTypeOfNumber", -1);
else
m_calledTypeOfNumber = type;
type = cfg->GetInteger(key, "CallingTypeOfNumber", -1);
if (type == -1)
m_callingTypeOfNumber = toolkit->Config()->GetInteger(RoutedSec, "CallingTypeOfNumber", -1);
else
m_callingTypeOfNumber = type;
int plan = cfg->GetInteger(key, "CalledPlanOfNumber", -1);
if (plan == -1)
m_calledPlanOfNumber = toolkit->Config()->GetInteger(RoutedSec, "CalledPlanOfNumber", -1);
else
m_calledPlanOfNumber = plan;
plan = cfg->GetInteger(key, "CallingPlanOfNumber", -1);
if (plan == -1)
m_callingPlanOfNumber = toolkit->Config()->GetInteger(RoutedSec, "CallingPlanOfNumber", -1);
else
m_callingPlanOfNumber = plan;
toolkit->ParseTranslationMap(m_receivedCauseMap, cfg->GetString(key, "TranslateReceivedQ931Cause", ""));
toolkit->ParseTranslationMap(m_sentCauseMap, cfg->GetString(key, "TranslateSentQ931Cause", ""));
m_proxy = cfg->GetInteger(key, "Proxy", 0);
PString log;
if (m_calledTypeOfNumber > -1)
log += " Called Type Of Number: " + PString(m_calledTypeOfNumber);
if (m_callingTypeOfNumber > -1)
log += " Calling Type Of Number: " + PString(m_callingTypeOfNumber);
if (m_proxy > 0)
log += " proxy: " + PString(m_proxy);
m_h46017disabled = cfg->GetBoolean(key, "DisableH46017", false);
m_h46018disabled = cfg->GetBoolean(key, "DisableH46018", false);
PString numbersDef = cfg->GetString(key, "AddNumbers", "");
if (!numbersDef.IsEmpty()) {
AddNumbers(numbersDef);
}
m_maxBandwidth = cfg->GetInteger(key, "MaxBandwidth", -1);
m_additionalDestAlias = cfg->GetString(key, "AdditionalDestinationAlias", "");
#ifdef HAS_TLS
m_useTLS = cfg->GetBoolean(key, "UseTLS", false);
#endif
if (cfg->GetBoolean(key, "DisableCallCreditCapabilities", false)) {
m_hasCallCreditCapabilities = false;
}
m_addCallingPartyToSourceAddress = cfg->GetBoolean(key, "AddCallingPartyToSourceAddress", false);
m_disabledcodecs = cfg->GetString(key, "DisabledCodecs", "");
if (!m_disabledcodecs.IsEmpty() && m_disabledcodecs.Right(1) != ";")
m_disabledcodecs += ";";
m_forceTerminalType = cfg->GetInteger(key, "ForceTerminalType", -1);
m_forceDirectMode = cfg->GetBoolean(key, "ForceDirectMode", false);
if (m_forceDirectMode) { // direct mode implies disabling proxy methods
log += " force-direct-mode";
m_h46017disabled = true;
m_h46018disabled = true;
}
PTRACE(5, "RAS\tEndpoint " << key << " capacity: " << m_capacity << log);
break;
}
}
if (setDefaults) {
m_capacity = -1;
m_calledTypeOfNumber = toolkit->Config()->GetInteger(RoutedSec, "CalledTypeOfNumber", -1);
m_callingTypeOfNumber = toolkit->Config()->GetInteger(RoutedSec, "CallingTypeOfNumber", -1);
m_calledPlanOfNumber = toolkit->Config()->GetInteger(RoutedSec, "CalledPlanOfNumber", -1);
m_callingPlanOfNumber = toolkit->Config()->GetInteger(RoutedSec, "CallingPlanOfNumber", -1);
m_proxy = 0;
}
}
void EndpointRec::AddPrefixCapacities(const PString & prefixes)
{
PStringArray prefix(prefixes.Tokenise(" ,;\t\n", false));
for (PINDEX i = 0; i < prefix.GetSize(); ++i) {
PStringArray p(prefix[i].Tokenise(":=", false));
if (p.GetSize() > 1) {
string cap_prefix = (const char *)p[0];
int capacity = p[1].AsInteger();
m_prefixCapacities.push_back(pair<std::string,int>(cap_prefix, capacity));
m_activePrefixCalls[cap_prefix] = 0;
PTRACE(5, "RAS\tEndpoint prefix: " << cap_prefix << " capacity: " << capacity);
} else {
PTRACE(1, "RAS\tEndpoint Syntax error in PrefixCapacities " << prefix[i]);
SNMP_TRAP(7, SNMPError, Configuration, "Invalid PrefixCapacities configuration");
}
}
}
bool EndpointRec::HasAvailableCapacity(const H225_ArrayOf_AliasAddress & aliases) const
{
string matched_prefix = "";
int prefix_capacity = -1;
// we can only send a single call over a H.460.17 connection
if (UsesH46017() && m_activeCall > 0)
return FALSE;
for (PINDEX i = 0; i < aliases.GetSize(); i++) {
const unsigned tag = aliases[i].GetTag();
if (tag == H225_AliasAddress::e_dialedDigits
|| tag == H225_AliasAddress::e_partyNumber
|| tag == H225_AliasAddress::e_h323_ID) {
const PString alias = AsString(aliases[i], FALSE);
matched_prefix = LongestPrefixMatch(alias, prefix_capacity);
}
}
// check if matched prefix has capacity available
if ((matched_prefix.length() > 0) && (prefix_capacity >= 0)) {
std::map<string, int>::const_iterator calls_iter = m_activePrefixCalls.find(matched_prefix);
if ((calls_iter != m_activePrefixCalls.end())
&& (calls_iter->second >= prefix_capacity)) {
PTRACE(5, "Prefix capacity for " << matched_prefix << " reached (max. " << prefix_capacity << ")");
return FALSE;
}
}
// check if total gateway has capacity
return m_capacity == -1 || m_activeCall < m_capacity;
}
//void EndpointRec::DumpPrefixCapacity() const
//{
// PTRACE(1, "JW: Dumping current prefix capacities for " << AsString(m_terminalAliases, FALSE) << " (" << AsDotString(GetCallSignalAddress()) << "):");
// PTRACE(1, "JW: Total calls = " << m_activeCall);
// list<pair<string, int> >::const_iterator Iter = m_prefixCapacities.begin();
// while (Iter != m_prefixCapacities.end()) {
// string prefix = Iter->first;
// int capacity = Iter->second;
// int calls = 0;
// map<string, int>::const_iterator calls_iter = m_activePrefixCalls.find(prefix);
// if (calls_iter != m_activePrefixCalls.end()) {
// calls = calls_iter->second;
// } else {
// PTRACE(1, "CODING ERROR no stats for prefix " << prefix);
// }
// PTRACE(1, "JW PREFIXCAP prefix/capacity/curr: " << prefix << "/" << capacity << "/" << calls);
// ++Iter;
// }
//}
PString EndpointRec::PrintPrefixCapacities() const
{
PString msg;
msg += PString("-- Endpoint: ") + AsString(m_terminalAliases, FALSE) + " (" + AsDotString(GetCallSignalAddress()) + ") --\r\n";
msg += "Total calls = " + PString(m_activeCall) + "\r\n";
list<pair<string, int> >::const_iterator Iter = m_prefixCapacities.begin();
while (Iter != m_prefixCapacities.end()) {
string prefix = Iter->first;
int capacity = Iter->second;
int calls = 0;
std::map<string, int>::const_iterator calls_iter = m_activePrefixCalls.find(prefix);
if (calls_iter != m_activePrefixCalls.end()) {
calls = calls_iter->second;
} else {
PTRACE(1, "CODING ERROR no stats for prefix " << prefix);
SNMP_TRAP(7, SNMPWarning, General, "no stats for prefix " + prefix);
}
msg += PString("prefix/capacity/curr: ") + prefix + "/" + PString(capacity) + "/" + PString(calls) + "\r\n";
++Iter;
}
return msg;
}
string EndpointRec::LongestPrefixMatch(const PString & alias, int & capacity) const
{
int maxlen = 0; // longest match
string matched_prefix;
int prefix_capacity = -1;
list<pair<string, int> >::const_iterator Iter = m_prefixCapacities.begin();
while (Iter != m_prefixCapacities.end()) {
string prefix = Iter->first;
if (prefix.length() > (unsigned)abs(maxlen)) {
PINDEX offset, len;
if (!alias.FindRegEx(PRegularExpression(prefix.c_str(), PRegularExpression::Extended), offset, len)) {
// ok, ignore
} else {
if (len > maxlen) {
maxlen = len;
matched_prefix = prefix;
prefix_capacity = Iter->second;
}
}
}
++Iter;
}
// two return values
capacity = prefix_capacity;
return matched_prefix;
}
void EndpointRec::UpdatePrefixStats(const PString & dest, int update)
{
int capacity = -1;
string longest_match = LongestPrefixMatch(dest, capacity);
if (longest_match.length() > 0) {
m_activePrefixCalls[longest_match] += update;
// avoid neg. call numbers; can happen when config is reloaded while calls are standing
if (m_activePrefixCalls[longest_match] < 0)
m_activePrefixCalls[longest_match] = 0;
} else {
// ignore if prefix is not limited (or this is the calling endpoint)
}
}
unsigned EndpointRec::TranslateReceivedCause(unsigned cause) const
{
std::map<unsigned, unsigned>::const_iterator i = m_receivedCauseMap.find(cause);
if (i != m_receivedCauseMap.end())
return i->second;
else
return cause;
}
unsigned EndpointRec::TranslateSentCause(unsigned cause) const
{
std::map<unsigned, unsigned>::const_iterator i = m_sentCauseMap.find(cause);
if (i != m_sentCauseMap.end())
return i->second;
else
return cause;
}
void EndpointRec::SetTimeToLive(int seconds)
{
PWaitAndSignal lock(m_usedLock);
if (m_timeToLive > 0 && !m_permanent) {
// To avoid bloated RRQ traffic, don't allow ttl < 60 for non-H.460.17/.18 endpoints
if (seconds < 60 && !IsTraversalClient() && !UsesH46017())
seconds = 60;
m_timeToLive = (SoftPBX::TimeToLive > 0) ?
std::min(SoftPBX::TimeToLive, seconds) : 0;
}
}
void EndpointRec::SetNATSocket(CallSignalSocket * socket)
{
PWaitAndSignal lock(m_usedLock);
if (!socket || !socket->IsConnected())
return;
if (m_natsocket != socket) {
PTRACE(3, "Q931\tNAT socket detected at " << socket->Name() << " for endpoint " << GetEndpointIdentifier().GetValue());
if (m_natsocket) {
PTRACE(1, "Q931\tWarning: natsocket " << m_natsocket->Name() << " is overwritten by " << socket->Name());
m_natsocket->Close();
m_natsocket->SetDeletable();
}
m_natsocket = socket;
}
}
void EndpointRec::RemoveNATSocket()
{
PWaitAndSignal lock(m_usedLock);
if (m_natsocket) {
m_natsocket->Close();
m_natsocket->SetConnected(false);
m_natsocket->SetDeletable();
m_natsocket = NULL;
}
}
void EndpointRec::NullNATSocket()
{
PWaitAndSignal lock(m_usedLock);
m_natsocket = NULL;
}
// return true if aliases were added to existing list
bool EndpointRec::SetAliases(const H225_ArrayOf_AliasAddress & a, PBoolean additive)
{
PWaitAndSignal lock(m_usedLock);
if (additive) {
bool added = false;
for (PINDEX i = 0; i < a.GetSize(); ++i) {
int sz = m_terminalAliases.GetSize();
bool found = false;
for (PINDEX j = 0; j < sz; ++j) {
if (m_terminalAliases[j] == a[i])
found = true;
}
if (!found) {
m_terminalAliases.SetSize(sz + 1);
m_terminalAliases[sz] = a[i];
added = true;
}
}
return added;
} else {
m_terminalAliases = a;
LoadConfig(); // update settings for the new aliases
return false;
}
}
bool EndpointRec::RemoveAliases(const H225_ArrayOf_AliasAddress & aliases)
{
PWaitAndSignal lock(m_usedLock);
bool compareAliasType = GkConfig()->GetBoolean("CompareAliasType", true);
bool compareAliasCase = GkConfig()->GetBoolean("CompareAliasCase", true);
for(PINDEX i = 0; i < aliases.GetSize(); i++) {
for(PINDEX j = 0; j < m_terminalAliases.GetSize(); j++) {
bool typeMatch = compareAliasType ? (aliases[i].GetTag() == m_terminalAliases[j].GetTag()) : true;
bool contentMatch = false;
if (typeMatch) {
if (compareAliasCase) {
contentMatch = AsString(aliases[i], false) == AsString(m_terminalAliases[j], false);
} else {
contentMatch = PCaselessString(AsString(aliases[i], false)) == AsString(m_terminalAliases[j], false);
}
}
if (typeMatch && contentMatch) {
// delete, move others 1 up
for(PINDEX k = j + 1; k < m_terminalAliases.GetSize(); k++)
m_terminalAliases[k-1] = m_terminalAliases[k];
m_terminalAliases.SetSize(m_terminalAliases.GetSize() - 1);
}
}
}
return (m_terminalAliases.GetSize() == 0);
}
void EndpointRec::AddNumbers(const PString & numbers)
{
PWaitAndSignal lock(m_usedLock);
PStringArray defs(numbers.Tokenise(",", FALSE));
H225_ArrayOf_AliasAddress newAlias;
newAlias.SetSize(1);
for (PINDEX i = 0; i < defs.GetSize(); i++) {
if (defs[i].Find("-") != P_MAX_INDEX) {
// range
PStringArray bounds(defs[i].Tokenise("-", FALSE));
PUInt64 lower = bounds[0].AsUnsigned64();
PUInt64 upper = 0;
if (bounds.GetSize() == 2) {
upper = bounds[1].AsUnsigned64();
} else {
PTRACE(1, "AddNumber: Invalid range definition: " << defs[i]);
continue;
}
if (upper <= lower) {
PTRACE(1, "AddNumber: Invalid range bounds: " << defs[i]);
continue;
}
PUInt64 num = upper - lower;
for (PUInt64 j = 0; j <= num; j++) {
PString number(lower + j);
PTRACE(4, "Adding number " << number << " to endpoint (from range)");
// remove alias in case it already exists, to make sure we don't have it twice
H323SetAliasAddress(defs[i], newAlias[0]);
RemoveAliases(newAlias);
// add new alias
m_terminalAliases.SetSize(m_terminalAliases.GetSize() + 1);
H323SetAliasAddress(number, m_terminalAliases[m_terminalAliases.GetSize() - 1], H225_AliasAddress::e_dialedDigits);
}
} else {
// single number
PTRACE(4, "Adding number " << defs[i] << " to endpoint");
// remove alias in case it already exists, to make sure we don't have it twice
H323SetAliasAddress(defs[i], newAlias[0]);
RemoveAliases(newAlias);
// add new alias
m_terminalAliases.SetSize(m_terminalAliases.GetSize() + 1);
H323SetAliasAddress(defs[i], m_terminalAliases[m_terminalAliases.GetSize() - 1]);
}
}
}
bool EndpointRec::SetAssignedAliases(H225_ArrayOf_AliasAddress & assigned)
{
PWaitAndSignal lock(m_usedLock);
bool newalias = Toolkit::Instance()->GetAssignedEPAliases().GetAliases(m_terminalAliases, assigned);
// If we have assigned Aliases then replace the existing list of aliases
if (newalias) {
m_terminalAliases.RemoveAll();
m_terminalAliases = assigned;
LoadConfig(); // update settings for the new aliases
}
return newalias;
}
void EndpointRec::SetEndpointType(const H225_EndpointType &t)
{
{
PWaitAndSignal lock(m_usedLock);
*m_terminalType = t;
}
LoadConfig(); // update settings for the new endpoint type
}
void EndpointRec::SetNATAddress(const PIPSocket::Address & ip, WORD port)
{
PWaitAndSignal lock(m_usedLock);
m_nat = true;
m_natip = ip;
// we keep the original private IP in signaling address,
// because we have to use it to identify different endpoints
// but from the same NAT box
if (ip.GetVersion() == 6) {
m_rasAddress.SetTag(H225_TransportAddress::e_ip6Address);
H225_TransportAddress_ip6Address & rasip = m_rasAddress;
for (int i = 0; i < 16; ++i)
rasip.m_ip[i] = ip[i];
rasip.m_port = port;
} else {
m_rasAddress.SetTag(H225_TransportAddress::e_ipAddress);
H225_TransportAddress_ipAddress & rasip = m_rasAddress;
for (int i = 0; i < 4; ++i)
rasip.m_ip[i] = ip[i];
rasip.m_port = port;
}
}
// due to strange bug in gcc, I have to pass pointer instead of reference
bool EndpointRec::CompareAlias(const H225_ArrayOf_AliasAddress *a) const
{
bool compareAliasType = GkConfig()->GetBoolean("CompareAliasType", true);
bool compareAliasCase = GkConfig()->GetBoolean("CompareAliasCase", true);
PWaitAndSignal lock(m_usedLock);
// don't find out-of-zone EPRecs from traversal servers by alias
// we must send a new LRQ (with CallID) so the traversal server will recognize
// the call as a traversal call (VCS 6.x behavior)
if (IsTraversalServer())
return false;
for (PINDEX i = 0; i < a->GetSize(); i++) {
for (PINDEX j = 0; j < m_terminalAliases.GetSize(); j++) {
bool typeMatch = compareAliasType ? ((*a)[i].GetTag() == m_terminalAliases[j].GetTag()) : true;
bool contentMatch = false;
if (typeMatch) {
if (compareAliasCase) {
contentMatch = AsString((*a)[i], false) == AsString(m_terminalAliases[j], false);
} else {
contentMatch = PCaselessString(AsString((*a)[i], false)) == AsString(m_terminalAliases[j], false);
}
}
if (typeMatch && contentMatch)
return true;
}
}
return false;
}
GkH235Authenticators* EndpointRec::GetH235Authenticators()
{
PWaitAndSignal lock(m_usedLock);
return m_authenticators;
}
void EndpointRec::SetH235Authenticators(GkH235Authenticators * auth)
{
PWaitAndSignal lock(m_usedLock);
if (m_authenticators == auth) {
// do nothing
} else {
delete m_authenticators;
m_authenticators = auth;
};
}
void EndpointRec::Update(const H225_RasMessage & ras_msg)
{
if (ras_msg.GetTag() == H225_RasMessage::e_registrationRequest) {
const H225_RegistrationRequest & rrq = ras_msg;
// don't update rasAddress for NATed endpoints
if (!m_nat && (rrq.m_rasAddress.GetSize() >= 1))
SetRasAddress(rrq.m_rasAddress[0]);
// but for NATed H.460.18 clients, we have to update the rasAddress
if (IsTraversalClient() && (rrq.m_rasAddress.GetSize() >= 1))
SetRasAddress(rrq.m_rasAddress[0]);
if (rrq.HasOptionalField(H225_RegistrationRequest::e_timeToLive))
SetTimeToLive(rrq.m_timeToLive);
if (rrq.HasOptionalField(H225_RegistrationRequest::e_additiveRegistration)
&& rrq.HasOptionalField(H225_RegistrationRequest::e_terminalAlias) ) {
// set the flag to say we have additive registrations
if (SetAliases(rrq.m_terminalAlias, true)) {
SetAdditiveRegistrant();
// Log the additive registration, if we have new aliases
EndpointRec logRec(ras_msg);
RasServer::Instance()->LogAcctEvent(GkAcctLogger::AcctRegister, endptr(&logRec));
if (!Toolkit::AsBool(GkConfig()->GetString("GkStatus::Filtering", "NewRCFOnly", "0"))) {
PString log = "RCF|" + PrintOn(false) + ";";
PTRACE(2, log);
GkStatus::Instance()->SignalStatus(log + "\r\n", STATUS_TRACE_LEVEL_RAS);
}
}
} else {
// H.225.0v4: ignore fields other than rasAddress, endpointIdentifier,
// timeToLive for a lightweightRRQ
if (!(rrq.HasOptionalField(H225_RegistrationRequest::e_keepAlive) && rrq.m_keepAlive)) {
if (rrq.HasOptionalField(H225_RegistrationRequest::e_terminalAlias)
&& (rrq.m_terminalAlias.GetSize() >= 1)) {
LoadAliases(rrq.m_terminalAlias, rrq.m_terminalType);
LoadConfig(); // update settings for the new aliases
}
}
}
} else if (ras_msg.GetTag() == H225_RasMessage::e_locationConfirm) {
const H225_LocationConfirm & lcf = ras_msg;
SetRasAddress(lcf.m_rasAddress);
if (lcf.HasOptionalField(H225_LocationConfirm::e_destinationInfo))
SetAliases(lcf.m_destinationInfo);
}
PWaitAndSignal lock(m_usedLock);
m_updatedTime = PTime();
m_pollCount = GkConfig()->GetInteger(RRQFeaturesSection, "IRQPollCount", DEFAULT_IRQ_POLL_COUNT);