diff options
Diffstat (limited to 'ci.c')
| -rw-r--r-- | ci.c | 311 |
1 files changed, 171 insertions, 140 deletions
@@ -4,15 +4,11 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: ci.c 1.3 2003/02/02 15:49:52 kls Exp $ + * $Id: ci.c 1.4 2003/02/09 11:54:22 kls Exp $ */ /* XXX TODO -- handle slots separately -- use return values - update CA descriptors in case they change -- dynamically react on CAM insert/remove -- implement CAM reset (per slot) XXX*/ #include "ci.h" @@ -215,7 +211,7 @@ int cTPDU::Write(int fd) int cTPDU::Read(int fd) { - size = read(fd, data, sizeof(data)); + size = safe_read(fd, data, sizeof(data)); if (size < 0) { esyslog("ERROR: %m"); size = 0; @@ -229,15 +225,15 @@ void cTPDU::Dump(bool Outgoing) { if (DumpTPDUDataTransfer) { #define MAX_DUMP 256 - printf("%s ", Outgoing ? "-->" : "<--"); + fprintf(stderr, "%s ", Outgoing ? "-->" : "<--"); for (int i = 0; i < size && i < MAX_DUMP; i++) - printf("%02X ", data[i]); - printf("%s\n", size >= MAX_DUMP ? "..." : ""); + fprintf(stderr, "%02X ", data[i]); + fprintf(stderr, "%s\n", size >= MAX_DUMP ? "..." : ""); if (!Outgoing) { - printf(" "); + fprintf(stderr, " "); for (int i = 0; i < size && i < MAX_DUMP; i++) - printf("%2c ", isprint(data[i]) ? data[i] : '.'); - printf("%s\n", size >= MAX_DUMP ? "..." : ""); + fprintf(stderr, "%2c ", isprint(data[i]) ? data[i] : '.'); + fprintf(stderr, "%s\n", size >= MAX_DUMP ? "..." : ""); } } } @@ -288,6 +284,7 @@ private: 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); @@ -324,15 +321,15 @@ int cCiTransportConnection::SendTPDU(uint8_t Tag, int Length, const uint8_t *Dat return TPDU.Write(fd); } +#define CAM_READ_TIMEOUT 3500 // ms + int cCiTransportConnection::RecvTPDU(void) { - //XXX poll, timeout??? struct pollfd pfd[1]; pfd[0].fd = fd; pfd[0].events = POLLIN; lastResponse = ERROR; - if (poll(pfd, 1, 3500/*XXX*/) && (pfd[0].revents & POLLIN))//XXX - if (tpdu->Read(fd) == OK && tpdu->Tcid() == tcid) { + if (poll(pfd, 1, CAM_READ_TIMEOUT) && (pfd[0].revents & POLLIN) && tpdu->Read(fd) == OK && tpdu->Tcid() == tcid) { switch (state) { case stIDLE: break; case stCREATION: if (tpdu->Tag() == T_CTC_REPLY) { @@ -363,6 +360,10 @@ int cCiTransportConnection::RecvTPDU(void) break; } } + else { + esyslog("ERROR: CAM: Read failed: slot %d, tcid %d\n", slot, tcid); + Init(-1, slot, tcid); + } return lastResponse; } @@ -385,11 +386,8 @@ int cCiTransportConnection::SendData(int Length, const uint8_t *Data) int cCiTransportConnection::RecvData(void) { - if (SendTPDU(T_RCV) == OK) { - if (RecvTPDU() == OK) { - //XXX - } - } + if (SendTPDU(T_RCV) == OK) + return RecvTPDU(); return ERROR; } @@ -403,7 +401,18 @@ int cCiTransportConnection::CreateConnection(void) if (state == stIDLE) { if (SendTPDU(T_CREATE_TC) == OK) { state = stCREATION; - return OK; + if (RecvTPDU() == T_CTC_REPLY) + return OK; + // the following is a workaround for CAMs that don't quite follow the specs... + else { + dbgprotocol("*** no reaction on T_CREATE_TC - retrying\n"); + if (RecvTPDU() == T_CTC_REPLY) { + dbgprotocol("*** received T_CTC_REPLY\n"); + RecvTPDU(); + dbgprotocol("*** done dummy RecvTPDU()\n"); + } + return OK; + } } } return ERROR; @@ -412,9 +421,8 @@ int cCiTransportConnection::CreateConnection(void) int cCiTransportConnection::Poll(void) { if (state == stACTIVE) { - if (SendTPDU(T_DATA_LAST) == OK) { + if (SendTPDU(T_DATA_LAST) == OK) return RecvTPDU(); - } } return ERROR; } @@ -428,11 +436,12 @@ private: int fd; int numSlots; cCiTransportConnection tc[MAX_CI_CONNECT]; - bool ResetSlot(int Slot); public: cCiTransportLayer(int Fd, int NumSlots); - cCiTransportConnection *NewConnection(void); - int Process(void); + cCiTransportConnection *NewConnection(int Slot); + bool ResetSlot(int Slot); + bool ModuleReady(int Slot); + cCiTransportConnection *Process(int Slot); }; cCiTransportLayer::cCiTransportLayer(int Fd, int NumSlots) @@ -441,46 +450,28 @@ cCiTransportLayer::cCiTransportLayer(int Fd, int NumSlots) numSlots = NumSlots; for (int s = 0; s < numSlots; s++) ResetSlot(s); - for (int i = 0; i < MAX_CI_CONNECT; i++) - tc[i].Init(fd, 0/*XXX*/, i + 1); } -cCiTransportConnection *cCiTransportLayer::NewConnection(void) +cCiTransportConnection *cCiTransportLayer::NewConnection(int Slot) { for (int i = 0; i < MAX_CI_CONNECT; i++) { if (tc[i].State() == stIDLE) { - if (tc[i].CreateConnection() == OK) { - if (tc[i].RecvTPDU() == T_CTC_REPLY) - return &tc[i]; - } + 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; } -#define CA_RESET_TIMEOUT 3 // seconds - bool cCiTransportLayer::ResetSlot(int Slot) { dbgprotocol("Resetting slot %d...", Slot); - ca_slot_info_t sinfo; - sinfo.num = Slot; if (ioctl(fd, CA_RESET, 1 << Slot) != -1) { - time_t t0 = time(NULL); - do { - if (ioctl(fd, CA_GET_SLOT_INFO, &sinfo) != -1) { - ioctl(fd, CA_GET_SLOT_INFO, &sinfo); - if ((sinfo.flags & CA_CI_MODULE_READY) != 0) { - dbgprotocol("ok.\n"); - return true; - } - } - else { - esyslog("ERROR: can't get info on CAM slot %d: %m", Slot); - break; - } - } while (time(NULL) - t0 < CA_RESET_TIMEOUT); + dbgprotocol("ok.\n"); + return true; } else esyslog("ERROR: can't reset CAM slot %d: %m", Slot); @@ -488,35 +479,55 @@ bool cCiTransportLayer::ResetSlot(int Slot) return false; } -int cCiTransportLayer::Process(void) +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->State() == 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()??? + 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 OK; + return NULL; } // -- cCiSession ------------------------------------------------------------- @@ -608,6 +619,7 @@ protected: 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 Process(int Length = 0, const uint8_t *Data = NULL); @@ -1261,9 +1273,7 @@ cCiHandler::cCiHandler(int Fd, int NumSlots) for (int i = 0; i < MAX_CI_SESSION; i++) sessions[i] = NULL; tpl = new cCiTransportLayer(Fd, numSlots); - tc = tpl->NewConnection(); - if (!tc) - isyslog("CAM: no CAM detected"); + tc = NULL; } cCiHandler::~cCiHandler() @@ -1281,14 +1291,9 @@ cCiHandler *cCiHandler::CreateCiHandler(const char *FileName) if (ioctl(fd_ca, CA_GET_CAP, &Caps) == 0) { int NumSlots = Caps.slot_num; if (NumSlots > 0) { - dsyslog("CAM: found %d CAM slots", NumSlots); - if (Caps.slot_type == CA_CI_LINK) { - cCiHandler *CiHandler = new cCiHandler(fd_ca, NumSlots); - // drive the initial data exchange: - for (int i = 0; i < 20; i++) //XXX make this dynamic??? - CiHandler->Process(); - return CiHandler; - } + //XXX dsyslog("CAM: found %d CAM slots", NumSlots); // TODO let's do this only once we can be sure that there _really_ is a CAM adapter! + if (Caps.slot_type == CA_CI_LINK) + return new cCiHandler(fd_ca, NumSlots); else esyslog("ERROR: CAM doesn't support link layer interface"); } @@ -1320,7 +1325,7 @@ bool cCiHandler::Send(uint8_t Tag, int SessionId, int ResourceId, int Status) *(short *)p = htons(SessionId); p += 2; buffer[1] = p - buffer - 2; // length - return tc->SendData(p - buffer, buffer) == OK; + return tc && tc->SendData(p - buffer, buffer) == OK; } cCiSession *cCiHandler::GetSessionBySessionId(int SessionId) @@ -1332,10 +1337,10 @@ cCiSession *cCiHandler::GetSessionBySessionId(int SessionId) return NULL; } -cCiSession *cCiHandler::GetSessionByResourceId(int ResourceId) +cCiSession *cCiHandler::GetSessionByResourceId(int ResourceId, int Slot) { for (int i = 0; i < MAX_CI_SESSION; i++) { - if (sessions[i] && sessions[i]->ResourceId() == ResourceId) + if (sessions[i] && sessions[i]->Tc()->Slot() == Slot && sessions[i]->ResourceId() == ResourceId) return sessions[i]; } return NULL; @@ -1343,7 +1348,7 @@ cCiSession *cCiHandler::GetSessionByResourceId(int ResourceId) cCiSession *cCiHandler::CreateSession(int ResourceId) { - if (!GetSessionByResourceId(ResourceId)) { + if (!GetSessionByResourceId(ResourceId, tc->Slot())) { for (int i = 0; i < MAX_CI_SESSION; i++) { if (!sessions[i]) { switch (ResourceId) { @@ -1403,81 +1408,107 @@ bool cCiHandler::CloseSession(int SessionId) return false; } -bool cCiHandler::Process(void) -{ - if (tc) { - cMutexLock MutexLock(&mutex); - if (tpl->Process() == OK) { - int Length; - const uint8_t *Data = tc->Data(Length); - if (Data && Length > 1) { - switch (*Data) { - case ST_SESSION_NUMBER: if (Length > 4) { - int SessionId = ntohs(*(short *)&Data[2]); - cCiSession *Session = GetSessionBySessionId(SessionId); - if (Session) - return Session->Process(Length - 4, Data + 4); - else { - esyslog("ERROR: unknown session id: %d", SessionId); - return false; - } - } - break; - case ST_OPEN_SESSION_REQUEST: return OpenSession(Length, Data); - case ST_CLOSE_SESSION_REQUEST: if (Length == 4) - return CloseSession(ntohs(*(short *)&Data[2])); - break; - case ST_CREATE_SESSION_RESPONSE: //XXX fall through to default - case ST_CLOSE_SESSION_RESPONSE: //XXX fall through to default - default: esyslog("ERROR: unknown session tag: %02X", *Data); - return false; - } - return true; - } - for (int i = 0; i < MAX_CI_SESSION; i++) { - if (sessions[i]) - sessions[i]->Process();//XXX retval??? +int cCiHandler::CloseAllSessions(int Slot) +{ + int result = 0; + for (int i = 0; i < MAX_CI_SESSION; i++) { + if (sessions[i] && sessions[i]->Tc()->Slot() == Slot) { + CloseSession(sessions[i]->SessionId()); + result++; + } + } + return result; +} + +void cCiHandler::Process(void) +{ + cMutexLock MutexLock(&mutex); + for (int Slot = 0; Slot < numSlots; Slot++) { + tc = tpl->Process(Slot); + if (tc) { + int Length; + const uint8_t *Data = tc->Data(Length); + if (Data && Length > 1) { + switch (*Data) { + case ST_SESSION_NUMBER: if (Length > 4) { + int SessionId = ntohs(*(short *)&Data[2]); + cCiSession *Session = GetSessionBySessionId(SessionId); + if (Session) + Session->Process(Length - 4, Data + 4); + else + esyslog("ERROR: unknown session id: %d", SessionId); + } + break; + case ST_OPEN_SESSION_REQUEST: OpenSession(Length, Data); + break; + case ST_CLOSE_SESSION_REQUEST: if (Length == 4) + CloseSession(ntohs(*(short *)&Data[2])); + break; + case ST_CREATE_SESSION_RESPONSE: //XXX fall through to default + case ST_CLOSE_SESSION_RESPONSE: //XXX fall through to default + default: esyslog("ERROR: unknown session tag: %02X", *Data); + } } - } - } - return false; + } + else { + if (!CloseAllSessions(Slot)) { + if (tpl->ModuleReady(Slot)) { + dbgprotocol("Module ready in slot %d\n", Slot); + tpl->NewConnection(Slot); + } + } + } + } + for (int i = 0; i < MAX_CI_SESSION; i++) { + if (sessions[i]) + sessions[i]->Process(); + } } -bool cCiHandler::EnterMenu(void) +bool cCiHandler::EnterMenu(int Slot) { cMutexLock MutexLock(&mutex); - //XXX slots??? - cCiApplicationInformation *api = (cCiApplicationInformation *)GetSessionByResourceId(RI_APPLICATION_INFORMATION); + cCiApplicationInformation *api = (cCiApplicationInformation *)GetSessionByResourceId(RI_APPLICATION_INFORMATION, Slot); return api ? api->EnterMenu() : false; } cCiMenu *cCiHandler::GetMenu(void) { cMutexLock MutexLock(&mutex); - //XXX slots??? - cCiMMI *mmi = (cCiMMI *)GetSessionByResourceId(RI_MMI); - return mmi ? mmi->Menu() : NULL; + for (int Slot = 0; Slot < numSlots; Slot++) { + cCiMMI *mmi = (cCiMMI *)GetSessionByResourceId(RI_MMI, Slot); + if (mmi) + return mmi->Menu(); + } + return NULL; } cCiEnquiry *cCiHandler::GetEnquiry(void) { cMutexLock MutexLock(&mutex); - //XXX slots??? - cCiMMI *mmi = (cCiMMI *)GetSessionByResourceId(RI_MMI); - return mmi ? mmi->Enquiry() : NULL; + for (int Slot = 0; Slot < numSlots; Slot++) { + cCiMMI *mmi = (cCiMMI *)GetSessionByResourceId(RI_MMI, Slot); + if (mmi) + return mmi->Enquiry(); + } + return NULL; } bool cCiHandler::SetCaPmt(cCiCaPmt &CaPmt) { cMutexLock MutexLock(&mutex); - //XXX slots??? - cCiConditionalAccessSupport *cas = (cCiConditionalAccessSupport *)GetSessionByResourceId(RI_CONDITIONAL_ACCESS_SUPPORT); - return cas ? cas->SendPMT(CaPmt) : false; + bool result = false; + for (int Slot = 0; Slot < numSlots; Slot++) { + cCiConditionalAccessSupport *cas = (cCiConditionalAccessSupport *)GetSessionByResourceId(RI_CONDITIONAL_ACCESS_SUPPORT, Slot); + if (cas) + result |= cas->SendPMT(CaPmt); + } + return result; } -bool cCiHandler::Reset(void) +bool cCiHandler::Reset(int Slot) { cMutexLock MutexLock(&mutex); - //XXX slots??? - return false;//XXX not yet implemented + CloseAllSessions(Slot); + return tpl->ResetSlot(Slot); } |