/
dvbci.cpp
2011 lines (1792 loc) · 55.3 KB
/
dvbci.cpp
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/*
* ci.cc: Common Interface
*
* Copyright (C) 2000 Klaus Schmidinger
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
* The author can be reached at kls@cadsoft.de
*
* The project's page is at http://www.cadsoft.de/people/kls/vdr
*
*/
#include "dvbci.h"
#include <errno.h>
#include <ctype.h>
#include <linux/dvb/ca.h>
#include <malloc.h>
#include <netinet/in.h>
#include <poll.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <fcntl.h>
#include <QString>
#include "mythlogging.h"
#ifndef MALLOC
#define MALLOC(type, size) (type *)malloc(sizeof(type) * (size))
#endif
#define esyslog(a...) LOG(VB_GENERAL, LOG_ERR, QString().sprintf(a))
#define isyslog(a...) LOG(VB_DVBCAM, LOG_INFO, QString().sprintf(a))
#define dsyslog(a...) LOG(VB_DVBCAM, LOG_DEBUG, QString().sprintf(a))
#define LOG_ERROR esyslog("ERROR (%s,%d): %m", __FILE__, __LINE__)
#define LOG_ERROR_STR(s) esyslog("ERROR: %s: %m", s)
// Set these to 'true' for debug output:
static bool DumpTPDUDataTransfer = false;
static bool DebugProtocol = false;
static bool _connected = false;
#define dbgprotocol(a...) if (DebugProtocol) LOG(VB_DVBCAM, LOG_DEBUG, QString().sprintf(a))
#define OK 0
#define TIMEOUT -1
#define ERROR -2
// --- Workarounds -----------------------------------------------------------
// The Irdeto AllCAM 4.7 (and maybe others, too) does not react on AOT_ENTER_MENU
// during the first few seconds of a newly established connection
#define WRKRND_TIME_BEFORE_ENTER_MENU 15 // seconds
// --- Helper functions ------------------------------------------------------
#define SIZE_INDICATOR 0x80
static ssize_t safe_read(int filedes, void *buffer, size_t size)
{
for (;;) {
ssize_t p = read(filedes, buffer, size);
if (p < 0 && (errno == EINTR || errno == EAGAIN)) {
dsyslog("EINTR while reading from file handle %d - retrying", filedes);
continue;
}
return p;
}
}
static const uint8_t *GetLength(const uint8_t *Data, int &Length)
///< Gets the length field from the beginning of Data.
///< \return Returns a pointer to the first byte after the length and
///< stores the length value in Length.
{
Length = *Data++;
if ((Length & SIZE_INDICATOR) != 0) {
int l = Length & ~SIZE_INDICATOR;
Length = 0;
for (int i = 0; i < l; i++)
Length = (Length << 8) | *Data++;
}
return Data;
}
static uint8_t *SetLength(uint8_t *Data, int Length)
///< Sets the length field at the beginning of Data.
///< \return Returns a pointer to the first byte after the length.
{
uint8_t *p = Data;
if (Length < 128)
*p++ = Length;
else {
int n = sizeof(Length);
for (int i = n - 1; i >= 0; i--) {
int b = (Length >> (8 * i)) & 0xFF;
if (p != Data || b)
*++p = b;
}
*Data = (p - Data) | SIZE_INDICATOR;
p++;
}
return p;
}
static char *CopyString(int Length, const uint8_t *Data)
///< Copies the string at Data.
///< \return Returns a pointer to a newly allocated string.
{
char *s = MALLOC(char, Length + 1);
strncpy(s, (char *)Data, Length);
s[Length] = 0;
return s;
}
static char *GetString(int &Length, const uint8_t **Data)
///< Gets the string at Data.
///< \return Returns a pointer to a newly allocated string, or NULL in case of error.
///< Upon return Length and Data represent the remaining data after the string has been skipped.
{
if (Length > 0 && Data && *Data) {
int l = 0;
const uint8_t *d = GetLength(*Data, l);
char *s = CopyString(l, d);
Length -= d - *Data + l;
*Data = d + l;
return s;
}
return NULL;
}
// --- cMutex ----------------------------------------------------------------
cMutex::cMutex(void)
{
lockingPid = 0;
locked = 0;
pthread_mutex_init(&mutex, NULL);
}
cMutex::~cMutex()
{
pthread_mutex_destroy(&mutex);
}
void cMutex::Lock(void)
{
if (getpid() != lockingPid || !locked) {
pthread_mutex_lock(&mutex);
lockingPid = getpid();
}
locked++;
}
void cMutex::Unlock(void)
{
if (--locked <= 0) {
if (locked < 0) {
esyslog("cMutex Lock inbalance detected");
locked = 0;
}
lockingPid = 0;
pthread_mutex_unlock(&mutex);
}
}
// --- cMutexLock ------------------------------------------------------------
cMutexLock::cMutexLock(cMutex *Mutex)
{
mutex = NULL;
locked = false;
Lock(Mutex);
}
cMutexLock::~cMutexLock()
{
if (mutex && locked)
mutex->Unlock();
}
bool cMutexLock::Lock(cMutex *Mutex)
{
if (Mutex && !mutex) {
mutex = Mutex;
Mutex->Lock();
locked = true;
return true;
}
return false;
}
// --- cTPDU -----------------------------------------------------------------
#define MAX_TPDU_SIZE 2048
#define MAX_TPDU_DATA (MAX_TPDU_SIZE - 4)
#define DATA_INDICATOR 0x80
#define T_SB 0x80
#define T_RCV 0x81
#define T_CREATE_TC 0x82
#define T_CTC_REPLY 0x83
#define T_DELETE_TC 0x84
#define T_DTC_REPLY 0x85
#define T_REQUEST_TC 0x86
#define T_NEW_TC 0x87
#define T_TC_ERROR 0x88
#define T_DATA_LAST 0xA0
#define T_DATA_MORE 0xA1
class cTPDU {
private:
int size;
uint8_t data[MAX_TPDU_SIZE];
const uint8_t *GetData(const uint8_t *Data, int &Length);
public:
cTPDU(void) { size = 0; memset(data, 0, sizeof(uint8_t) * MAX_TPDU_SIZE); }
cTPDU(uint8_t Slot, uint8_t Tcid, uint8_t Tag, int Length = 0, const uint8_t *Data = NULL);
uint8_t Slot(void) { return data[0]; }
uint8_t Tcid(void) { return data[1]; }
uint8_t Tag(void) { return data[2]; }
const uint8_t *Data(int &Length) { return GetData(data + 3, Length); }
uint8_t Status(void);
int Write(int fd);
int Read(int fd);
void Dump(bool Outgoing);
};
cTPDU::cTPDU(uint8_t Slot, uint8_t Tcid, uint8_t Tag, int Length, const uint8_t *Data)
{
size = 0;
data[0] = Slot;
data[1] = Tcid;
data[2] = Tag;
switch (Tag) {
case T_RCV:
case T_CREATE_TC:
case T_CTC_REPLY:
case T_DELETE_TC:
case T_DTC_REPLY:
case T_REQUEST_TC:
data[3] = 1; // length
data[4] = Tcid;
size = 5;
break;
case T_NEW_TC:
case T_TC_ERROR:
if (Length == 1) {
data[3] = 2; // length
data[4] = Tcid;
data[5] = Data[0];
size = 6;
}
else
esyslog("ERROR: illegal data length for TPDU tag 0x%02X: %d", Tag, Length);
break;
case T_DATA_LAST:
case T_DATA_MORE:
if (Length <= MAX_TPDU_DATA) {
uint8_t *p = data + 3;
p = SetLength(p, Length + 1);
*p++ = Tcid;
if (Length)
memcpy(p, Data, Length);
size = Length + (p - data);
}
else
esyslog("ERROR: illegal data length for TPDU tag 0x%02X: %d", Tag, Length);
break;
default:
esyslog("ERROR: unknown TPDU tag: 0x%02X", Tag);
}
}
int cTPDU::Write(int fd)
{
Dump(true);
if (size)
return write(fd, data, size) == size ? OK : ERROR;
esyslog("ERROR: attemp to write TPDU with zero size");
return ERROR;
}
int cTPDU::Read(int fd)
{
size = safe_read(fd, data, sizeof(data));
if (size < 0) {
esyslog("ERROR: %m");
size = 0;
return ERROR;
}
Dump(false);
return OK;
}
void cTPDU::Dump(bool Outgoing)
{
if (DumpTPDUDataTransfer) {
#define MAX_DUMP 256
QString msg = QString("%1 ").arg(Outgoing ? "-->" : "<--");
for (int i = 0; i < size && i < MAX_DUMP; i++)
msg += QString("%1 ").arg((short int)data[i], 2, 16, QChar('0'));
if (size >= MAX_DUMP)
msg += "...";
LOG(VB_DVBCAM, LOG_INFO, msg);
if (!Outgoing) {
msg = QString(" ");
for (int i = 0; i < size && i < MAX_DUMP; i++)
msg += QString("%1 ").arg(isprint(data[i]) ? data[i] : '.', 2);
if (size >= MAX_DUMP)
msg += "...";
LOG(VB_DVBCAM, LOG_INFO, msg);
}
}
}
const uint8_t *cTPDU::GetData(const uint8_t *Data, int &Length)
{
if (size) {
Data = GetLength(Data, Length);
if (Length) {
Length--; // the first byte is always the tcid
return Data + 1;
}
}
return NULL;
}
uint8_t cTPDU::Status(void)
{
if (size >= 4 && data[size - 4] == T_SB && data[size - 3] == 2) {
//XXX test tcid???
return data[size - 1];
}
return 0;
}
// --- cCiTransportConnection ------------------------------------------------
enum eState { stIDLE, stCREATION, stACTIVE, stDELETION };
class cCiTransportConnection {
friend class cCiTransportLayer;
private:
int fd;
uint8_t slot;
uint8_t tcid;
eState state;
cTPDU *tpdu;
struct timeval last_poll;
int lastResponse;
bool dataAvailable;
void Init(int Fd, uint8_t Slot, uint8_t Tcid);
int SendTPDU(uint8_t Tag, int Length = 0, const uint8_t *Data = NULL);
int RecvTPDU(void);
int CreateConnection(void);
int Poll(void);
eState State(void) { return state; }
int LastResponse(void) { return lastResponse; }
bool DataAvailable(void) { return dataAvailable; }
public:
cCiTransportConnection(void);
~cCiTransportConnection();
int Slot(void) const { return slot; }
int SendData(int Length, const uint8_t *Data);
int RecvData(void);
const uint8_t *Data(int &Length);
//XXX Close()
};
cCiTransportConnection::cCiTransportConnection(void)
{
tpdu = NULL;
last_poll.tv_sec = 0;
last_poll.tv_usec = 0;
Init(-1, 0, 0);
}
cCiTransportConnection::~cCiTransportConnection()
{
delete tpdu;
}
void cCiTransportConnection::Init(int Fd, uint8_t Slot, uint8_t Tcid)
{
fd = Fd;
slot = Slot;
tcid = Tcid;
state = stIDLE;
if (fd >= 0 && !tpdu)
tpdu = new cTPDU;
lastResponse = ERROR;
dataAvailable = false;
//XXX Clear()???
}
int cCiTransportConnection::SendTPDU(uint8_t Tag, int Length, const uint8_t *Data)
{
cTPDU TPDU(slot, tcid, Tag, Length, Data);
return TPDU.Write(fd);
}
#define CAM_READ_TIMEOUT 5000 // ms
int cCiTransportConnection::RecvTPDU(void)
{
struct pollfd pfd[1];
pfd[0].fd = fd;
pfd[0].events = POLLIN;
lastResponse = ERROR;
for (;;) {
int ret = poll(pfd, 1, CAM_READ_TIMEOUT);
if (ret == -1 && (errno == EAGAIN || errno == EINTR))
continue;
break;
}
if (
(pfd[0].revents & POLLIN) &&
tpdu->Read(fd) == OK &&
tpdu->Tcid() == tcid
)
{
switch (state) {
case stIDLE: break;
case stCREATION: if (tpdu->Tag() == T_CTC_REPLY) {
dataAvailable = tpdu->Status() & DATA_INDICATOR;
state = stACTIVE;
lastResponse = tpdu->Tag();
}
break;
case stACTIVE: switch (tpdu->Tag()) {
case T_SB:
case T_DATA_LAST:
case T_DATA_MORE:
case T_REQUEST_TC: break;
case T_DELETE_TC: if (SendTPDU(T_DTC_REPLY) != OK)
return ERROR;
Init(fd, slot, tcid);
break;
default: return ERROR;
}
dataAvailable = tpdu->Status() & DATA_INDICATOR;
lastResponse = tpdu->Tag();
break;
case stDELETION: if (tpdu->Tag() == T_DTC_REPLY) {
Init(fd, slot, tcid);
//XXX Status()???
lastResponse = tpdu->Tag();
}
break;
}
}
else {
esyslog("ERROR: CAM: Read failed: slot %d, tcid %d\n", slot, tcid);
Init(-1, slot, tcid);
}
return lastResponse;
}
int cCiTransportConnection::SendData(int Length, const uint8_t *Data)
{
while (state == stACTIVE && Length > 0) {
uint8_t Tag = T_DATA_LAST;
int l = Length;
if (l > MAX_TPDU_DATA) {
Tag = T_DATA_MORE;
l = MAX_TPDU_DATA;
}
if (SendTPDU(Tag, l, Data) != OK || RecvTPDU() != T_SB)
break;
Length -= l;
Data += l;
}
return Length ? ERROR : OK;
}
int cCiTransportConnection::RecvData(void)
{
if (SendTPDU(T_RCV) == OK)
return RecvTPDU();
return ERROR;
}
const uint8_t *cCiTransportConnection::Data(int &Length)
{
return tpdu->Data(Length);
}
#define MAX_CONNECT_RETRIES 25
int cCiTransportConnection::CreateConnection(void)
{
if (state == stIDLE) {
if (SendTPDU(T_CREATE_TC) == OK) {
state = stCREATION;
if (RecvTPDU() == T_CTC_REPLY) {
_connected=true;
return OK;
// the following is a workaround for CAMs that don't quite follow the specs...
} else {
for (int i = 0; i < MAX_CONNECT_RETRIES; i++) {
dsyslog("CAM: retrying to establish connection");
if (RecvTPDU() == T_CTC_REPLY) {
dsyslog("CAM: connection established");
_connected=true;
return OK;
}
}
return ERROR;
}
}
}
return ERROR;
}
// Polls can be done with a 100ms interval (EN50221 - A.4.1.12)
#define POLL_INTERVAL 100
int cCiTransportConnection::Poll(void)
{
struct timeval curr_time;
if (state != stACTIVE)
return ERROR;
gettimeofday(&curr_time, 0);
uint64_t msdiff = (curr_time.tv_sec * 1000) + (curr_time.tv_usec / 1000) -
(last_poll.tv_sec * 1000) - (last_poll.tv_usec / 1000);
if (msdiff < POLL_INTERVAL)
return OK;
last_poll.tv_sec = curr_time.tv_sec;
last_poll.tv_usec = curr_time.tv_usec;
if (SendTPDU(T_DATA_LAST) != OK)
return ERROR;
return RecvTPDU();
}
// --- cCiTransportLayer -----------------------------------------------------
#define MAX_CI_CONNECT 16 // maximum possible value is 254
class cCiTransportLayer {
private:
int fd;
int numSlots;
cCiTransportConnection tc[MAX_CI_CONNECT];
public:
cCiTransportLayer(int Fd, int NumSlots);
cCiTransportConnection *NewConnection(int Slot);
bool ResetSlot(int Slot);
bool ModuleReady(int Slot);
cCiTransportConnection *Process(int Slot);
};
cCiTransportLayer::cCiTransportLayer(int Fd, int NumSlots)
{
fd = Fd;
numSlots = NumSlots;
for (int s = 0; s < numSlots; s++)
ResetSlot(s);
}
cCiTransportConnection *cCiTransportLayer::NewConnection(int Slot)
{
for (int i = 0; i < MAX_CI_CONNECT; i++) {
if (tc[i].State() == stIDLE) {
dbgprotocol("Creating connection: slot %d, tcid %d\n", Slot, i + 1);
tc[i].Init(fd, Slot, i + 1);
if (tc[i].CreateConnection() == OK)
return &tc[i];
break;
}
}
return NULL;
}
bool cCiTransportLayer::ResetSlot(int Slot)
{
dbgprotocol("Resetting slot %d...", Slot);
if (ioctl(fd, CA_RESET, 1 << Slot) != -1) {
dbgprotocol("ok.\n");
return true;
}
else
esyslog("ERROR: can't reset CAM slot %d: %m", Slot);
dbgprotocol("failed!\n");
return false;
}
bool cCiTransportLayer::ModuleReady(int Slot)
{
ca_slot_info_t sinfo;
sinfo.num = Slot;
if (ioctl(fd, CA_GET_SLOT_INFO, &sinfo) != -1)
return sinfo.flags & CA_CI_MODULE_READY;
else
esyslog("ERROR: can't get info on CAM slot %d: %m", Slot);
return false;
}
cCiTransportConnection *cCiTransportLayer::Process(int Slot)
{
for (int i = 0; i < MAX_CI_CONNECT; i++) {
cCiTransportConnection *Tc = &tc[i];
if (Tc->Slot() == Slot) {
switch (Tc->State()) {
case stCREATION:
case stACTIVE:
if (!Tc->DataAvailable()) {
if (Tc->Poll() != OK)
;//XXX continue;
}
switch (Tc->LastResponse()) {
case T_REQUEST_TC:
//XXX
break;
case T_DATA_MORE:
case T_DATA_LAST:
case T_CTC_REPLY:
case T_SB:
if (Tc->DataAvailable())
Tc->RecvData();
break;
case TIMEOUT:
case ERROR:
default:
//XXX Tc->state = stIDLE;//XXX Init()???
return NULL;
break;
}
//XXX this will only work with _one_ transport connection per slot!
return Tc;
break;
default: ;
}
}
}
return NULL;
}
// -- cCiSession -------------------------------------------------------------
// Session Tags:
#define ST_SESSION_NUMBER 0x90
#define ST_OPEN_SESSION_REQUEST 0x91
#define ST_OPEN_SESSION_RESPONSE 0x92
#define ST_CREATE_SESSION 0x93
#define ST_CREATE_SESSION_RESPONSE 0x94
#define ST_CLOSE_SESSION_REQUEST 0x95
#define ST_CLOSE_SESSION_RESPONSE 0x96
// Session Status:
#define SS_OK 0x00
#define SS_NOT_ALLOCATED 0xF0
// Resource Identifiers:
#define RI_RESOURCE_MANAGER 0x00010041
#define RI_APPLICATION_INFORMATION 0x00020041
#define RI_CONDITIONAL_ACCESS_SUPPORT 0x00030041
#define RI_HOST_CONTROL 0x00200041
#define RI_DATE_TIME 0x00240041
#define RI_MMI 0x00400041
// Application Object Tags:
#define AOT_NONE 0x000000
#define AOT_PROFILE_ENQ 0x9F8010
#define AOT_PROFILE 0x9F8011
#define AOT_PROFILE_CHANGE 0x9F8012
#define AOT_APPLICATION_INFO_ENQ 0x9F8020
#define AOT_APPLICATION_INFO 0x9F8021
#define AOT_ENTER_MENU 0x9F8022
#define AOT_CA_INFO_ENQ 0x9F8030
#define AOT_CA_INFO 0x9F8031
#define AOT_CA_PMT 0x9F8032
#define AOT_CA_PMT_REPLY 0x9F8033
#define AOT_TUNE 0x9F8400
#define AOT_REPLACE 0x9F8401
#define AOT_CLEAR_REPLACE 0x9F8402
#define AOT_ASK_RELEASE 0x9F8403
#define AOT_DATE_TIME_ENQ 0x9F8440
#define AOT_DATE_TIME 0x9F8441
#define AOT_CLOSE_MMI 0x9F8800
#define AOT_DISPLAY_CONTROL 0x9F8801
#define AOT_DISPLAY_REPLY 0x9F8802
#define AOT_TEXT_LAST 0x9F8803
#define AOT_TEXT_MORE 0x9F8804
#define AOT_KEYPAD_CONTROL 0x9F8805
#define AOT_KEYPRESS 0x9F8806
#define AOT_ENQ 0x9F8807
#define AOT_ANSW 0x9F8808
#define AOT_MENU_LAST 0x9F8809
#define AOT_MENU_MORE 0x9F880A
#define AOT_MENU_ANSW 0x9F880B
#define AOT_LIST_LAST 0x9F880C
#define AOT_LIST_MORE 0x9F880D
#define AOT_SUBTITLE_SEGMENT_LAST 0x9F880E
#define AOT_SUBTITLE_SEGMENT_MORE 0x9F880F
#define AOT_DISPLAY_MESSAGE 0x9F8810
#define AOT_SCENE_END_MARK 0x9F8811
#define AOT_SCENE_DONE 0x9F8812
#define AOT_SCENE_CONTROL 0x9F8813
#define AOT_SUBTITLE_DOWNLOAD_LAST 0x9F8814
#define AOT_SUBTITLE_DOWNLOAD_MORE 0x9F8815
#define AOT_FLUSH_DOWNLOAD 0x9F8816
#define AOT_DOWNLOAD_REPLY 0x9F8817
#define AOT_COMMS_CMD 0x9F8C00
#define AOT_CONNECTION_DESCRIPTOR 0x9F8C01
#define AOT_COMMS_REPLY 0x9F8C02
#define AOT_COMMS_SEND_LAST 0x9F8C03
#define AOT_COMMS_SEND_MORE 0x9F8C04
#define AOT_COMMS_RCV_LAST 0x9F8C05
#define AOT_COMMS_RCV_MORE 0x9F8C06
class cCiSession {
private:
int sessionId;
int resourceId;
cCiTransportConnection *tc;
protected:
int GetTag(int &Length, const uint8_t **Data);
const uint8_t *GetData(const uint8_t *Data, int &Length);
int SendData(int Tag, int Length = 0, const uint8_t *Data = NULL);
public:
cCiSession(int SessionId, int ResourceId, cCiTransportConnection *Tc);
virtual ~cCiSession();
const cCiTransportConnection *Tc(void) { return tc; }
int SessionId(void) { return sessionId; }
int ResourceId(void) { return resourceId; }
virtual bool HasUserIO(void) { return false; }
virtual bool Process(int Length = 0, const uint8_t *Data = NULL);
};
cCiSession::cCiSession(int SessionId, int ResourceId, cCiTransportConnection *Tc)
{
sessionId = SessionId;
resourceId = ResourceId;
tc = Tc;
}
cCiSession::~cCiSession()
{
}
int cCiSession::GetTag(int &Length, const uint8_t **Data)
///< Gets the tag at Data.
///< \return Returns the actual tag, or AOT_NONE in case of error.
///< Upon return Length and Data represent the remaining data after the tag has been skipped.
{
if (Length >= 3 && Data && *Data) {
int t = 0;
for (int i = 0; i < 3; i++)
t = (t << 8) | *(*Data)++;
Length -= 3;
return t;
}
return AOT_NONE;
}
const uint8_t *cCiSession::GetData(const uint8_t *Data, int &Length)
{
Data = GetLength(Data, Length);
return Length ? Data : NULL;
}
int cCiSession::SendData(int Tag, int Length, const uint8_t *Data)
{
uint8_t buffer[2048];
uint8_t *p = buffer;
*p++ = ST_SESSION_NUMBER;
*p++ = 0x02;
*p++ = (sessionId >> 8) & 0xFF;
*p++ = sessionId & 0xFF;
*p++ = (Tag >> 16) & 0xFF;
*p++ = (Tag >> 8) & 0xFF;
*p++ = Tag & 0xFF;
p = SetLength(p, Length);
if (p - buffer + Length < int(sizeof(buffer))) {
memcpy(p, Data, Length);
p += Length;
return tc->SendData(p - buffer, buffer);
}
esyslog("ERROR: CAM: data length (%d) exceeds buffer size", Length);
return ERROR;
}
bool cCiSession::Process(int Length, const uint8_t *Data)
{
(void)Length;
(void)Data;
return true;
}
// -- cCiResourceManager -----------------------------------------------------
class cCiResourceManager : public cCiSession {
private:
int state;
public:
cCiResourceManager(int SessionId, cCiTransportConnection *Tc);
virtual bool Process(int Length = 0, const uint8_t *Data = NULL);
};
cCiResourceManager::cCiResourceManager(int SessionId, cCiTransportConnection *Tc)
:cCiSession(SessionId, RI_RESOURCE_MANAGER, Tc)
{
dbgprotocol("New Resource Manager (session id %d)\n", SessionId);
state = 0;
}
bool cCiResourceManager::Process(int Length, const uint8_t *Data)
{
if (Data) {
int Tag = GetTag(Length, &Data);
switch (Tag) {
case AOT_PROFILE_ENQ: {
dbgprotocol("%d: <== Profile Enquiry\n", SessionId());
uint32_t resources[] =
{
htonl(RI_RESOURCE_MANAGER),
htonl(RI_APPLICATION_INFORMATION),
htonl(RI_CONDITIONAL_ACCESS_SUPPORT),
htonl(RI_DATE_TIME),
htonl(RI_MMI)
};
dbgprotocol("%d: ==> Profile\n", SessionId());
SendData(AOT_PROFILE, sizeof(resources), (uint8_t*)resources);
state = 3;
}
break;
case AOT_PROFILE: {
dbgprotocol("%d: <== Profile\n", SessionId());
if (state == 1) {
int l = 0;
const uint8_t *d = GetData(Data, l);
if (l > 0 && d)
esyslog("CI resource manager: unexpected data");
dbgprotocol("%d: ==> Profile Change\n", SessionId());
SendData(AOT_PROFILE_CHANGE);
state = 2;
}
else {
esyslog("ERROR: CI resource manager: unexpected tag %06X in state %d", Tag, state);
}
}
break;
default: esyslog("ERROR: CI resource manager: unknown tag %06X", Tag);
return false;
}
}
else if (state == 0) {
dbgprotocol("%d: ==> Profile Enq\n", SessionId());
SendData(AOT_PROFILE_ENQ);
state = 1;
}
return true;
}
// --- cCiApplicationInformation ---------------------------------------------
class cCiApplicationInformation : public cCiSession {
private:
int state;
time_t creationTime;
uint8_t applicationType;
uint16_t applicationManufacturer;
uint16_t manufacturerCode;
char *menuString;
public:
cCiApplicationInformation(int SessionId, cCiTransportConnection *Tc);
virtual ~cCiApplicationInformation();
virtual bool Process(int Length = 0, const uint8_t *Data = NULL);
bool EnterMenu(void);
char *GetApplicationString() { return strdup(menuString); };
uint16_t GetApplicationManufacturer() { return applicationManufacturer; };
uint16_t GetManufacturerCode() { return manufacturerCode; };
};
cCiApplicationInformation::cCiApplicationInformation(int SessionId, cCiTransportConnection *Tc)
:cCiSession(SessionId, RI_APPLICATION_INFORMATION, Tc)
{
dbgprotocol("New Application Information (session id %d)\n", SessionId);
state = 0;
creationTime = time(NULL);
applicationType = 0;
applicationManufacturer = 0;
manufacturerCode = 0;
menuString = NULL;
}
cCiApplicationInformation::~cCiApplicationInformation()
{
free(menuString);
}
bool cCiApplicationInformation::Process(int Length, const uint8_t *Data)
{
if (Data) {
int Tag = GetTag(Length, &Data);
switch (Tag) {
case AOT_APPLICATION_INFO: {
dbgprotocol("%d: <== Application Info\n", SessionId());
int l = 0;
const uint8_t *d = GetData(Data, l);
if ((l -= 1) < 0) break;
applicationType = *d++;
if ((l -= 2) < 0) break;
applicationManufacturer = ntohs(*(uint16_t *)d);
d += 2;
if ((l -= 2) < 0) break;
manufacturerCode = ntohs(*(uint16_t *)d);
d += 2;
free(menuString);
menuString = GetString(l, &d);
isyslog("CAM: %s, %02X, %04X, %04X", menuString, applicationType,
applicationManufacturer, manufacturerCode);
}
state = 2;
break;
default: esyslog("ERROR: CI application information: unknown tag %06X", Tag);
return false;
}
}
else if (state == 0) {
dbgprotocol("%d: ==> Application Info Enq\n", SessionId());
SendData(AOT_APPLICATION_INFO_ENQ);
state = 1;
}
return true;
}
bool cCiApplicationInformation::EnterMenu(void)
{
if (state == 2 && time(NULL) - creationTime > WRKRND_TIME_BEFORE_ENTER_MENU) {
dbgprotocol("%d: ==> Enter Menu\n", SessionId());
SendData(AOT_ENTER_MENU);
return true;//XXX
}
return false;
}
// --- cCiConditionalAccessSupport -------------------------------------------
class cCiConditionalAccessSupport : public cCiSession {
private:
int state;
int numCaSystemIds;
unsigned short caSystemIds[MAXCASYSTEMIDS + 1]; // list is zero terminated!
bool needCaPmt;
public:
cCiConditionalAccessSupport(int SessionId, cCiTransportConnection *Tc);
virtual bool Process(int Length = 0, const uint8_t *Data = NULL);
const unsigned short *GetCaSystemIds(void) { return caSystemIds; }
bool SendPMT(cCiCaPmt &CaPmt);
bool NeedCaPmt(void) { return needCaPmt; }
};
cCiConditionalAccessSupport::cCiConditionalAccessSupport(
int SessionId, cCiTransportConnection *Tc) :
cCiSession(SessionId, RI_CONDITIONAL_ACCESS_SUPPORT, Tc),
state(0), numCaSystemIds(0), needCaPmt(false)
{
dbgprotocol("New Conditional Access Support (session id %d)\n", SessionId);
memset(caSystemIds, 0, sizeof(caSystemIds));
}
bool cCiConditionalAccessSupport::Process(int Length, const uint8_t *Data)
{