diff options
Diffstat (limited to 'ci.c')
| -rw-r--r-- | ci.c | 190 |
1 files changed, 181 insertions, 9 deletions
@@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: ci.c 4.16 2017/05/18 09:05:46 kls Exp $ + * $Id: ci.c 4.17 2017/06/10 11:53:39 kls Exp $ */ #include "ci.h" @@ -78,17 +78,18 @@ static char *CopyString(int Length, const uint8_t *Data) ///< Copies the string at Data. ///< Returns a pointer to a newly allocated string. { - // Some CAMs send funny characters at the beginning of strings. - // Let's just skip them: - while (Length > 0 && (*Data == ' ' || *Data == 0x05 || *Data == 0x96 || *Data == 0x97)) { + char *s = MALLOC(char, Length + 1); + char *p = s; + while (Length > 0) { + char c = *Data; + if (isprint(c)) // some CAMs send funny characters in their strings, let's just skip them + *p++ = c; + else if (c == 0x8A) // the character 0x8A is used as newline, so let's put a real '\n' in there + *p++ = '\n'; Length--; Data++; } - char *s = MALLOC(char, Length + 1); - strncpy(s, (char *)Data, Length); - s[Length] = 0; - // The character 0x8A is used as newline, so let's put a real '\n' in there: - strreplace(s, 0x8A, '\n'); + *p = 0; return s; } @@ -290,6 +291,137 @@ void cCaActivationReceiver::Receive(const uchar *Data, int Length) } } +// --- cCamResponse ---------------------------------------------------------- + +// CAM Response Actions: + +#define CRA_NONE 0 +#define CRA_DISCARD -1 +#define CRA_CONFIRM -2 +#define CRA_SELECT -3 + +class cCamResponse : public cListObject { +private: + int camNumber; + char *text; + int action; +public: + cCamResponse(void); + ~cCamResponse(); + bool Parse(const char *s); + int Matches(int CamNumber, const char *Text) const; + }; + +cCamResponse::cCamResponse(void) +{ + camNumber = -1; + text = NULL; + action = CRA_NONE; +} + +cCamResponse::~cCamResponse() +{ + free(text); +} + +bool cCamResponse::Parse(const char *s) +{ + // Number: + s = skipspace(s); + if (*s == '*') { + camNumber = 0; // all CAMs + s++; + } + else { + char *e; + camNumber = strtol(s, &e, 10); + if (e == s || camNumber <= 0) + return false; + s = e; + } + // Text: + s = skipspace(s); + char *t = const_cast<char *>(s); // might have to modify it + char *q = NULL; // holds a copy in case of backslashes + bool InQuotes = false; + while (*t) { + if (*t == '"') { + if (t == s) { // opening quotes + InQuotes = true; + s++; + } + else if (InQuotes) // closing quotes + break; + } + else if (*t == '\\') { + if (!q) { // need to make a copy in order to strip backslashes + q = strdup(s); + t = q + (t - s); + s = q; + } + memmove(t, t + 1, strlen(t)); + } + else if (*t == ' ') { + if (!InQuotes) + break; + } + t++; + } + free(text); // just for safety + text = NULL; + if (t != s) { + text = strndup(s, t - s); + s = t + 1; + } + free(q); + if (!text) + return false; + // Action: + s = skipspace(s); + if (strcasecmp(s, "DISCARD") == 0) action = CRA_DISCARD; + else if (strcasecmp(s, "CONFIRM") == 0) action = CRA_CONFIRM; + else if (strcasecmp(s, "SELECT") == 0) action = CRA_SELECT; + else if (isnumber(s)) action = atoi(s); + else + return false; + return true; +} + +int cCamResponse::Matches(int CamNumber, const char *Text) const +{ + if (!camNumber || camNumber == CamNumber) { + if (strcmp(text, Text) == 0) + return action; + } + return CRA_NONE; +} + +// --- cCamResponses -------------------------------------------------------- + +class cCamResponses : public cConfig<cCamResponse> { +public: + int GetMatch(int CamNumber, const char *Text) const; + }; + +int cCamResponses::GetMatch(int CamNumber, const char *Text) const +{ + for (const cCamResponse *cr = First(); cr; cr = Next(cr)) { + int Action = cr->Matches(CamNumber, Text); + if (Action != CRA_NONE) { + dsyslog("CAM %d: auto response %4d to '%s'\n", CamNumber, Action, Text); + return Action; + } + } + return CRA_NONE; +} + +cCamResponses CamResponses; + +bool CamResponsesLoad(const char *FileName, bool AllowComments, bool MustExist) +{ + return CamResponses.Load(FileName, AllowComments, MustExist); +} + // --- cTPDU ----------------------------------------------------------------- #define MAX_TPDU_SIZE 4096 @@ -1292,15 +1424,41 @@ void cCiMMI::Process(int Length, const uint8_t *Data) if (l > 0) menu->titleText = GetText(l, &d); if (l > 0) menu->subTitleText = GetText(l, &d); if (l > 0) menu->bottomText = GetText(l, &d); + int Action = CRA_NONE; + int Select = -1; + int Item = 0; while (l > 0) { char *s = GetText(l, &d); if (s) { if (!menu->AddEntry(s)) free(s); + else if (Action == CRA_NONE) { + Action = CamResponses.GetMatch(CamSlot()->SlotNumber(), s); + if (Action == CRA_SELECT) + Select = Item; + } } else break; + Item++; } + if (Action != CRA_NONE) { + delete menu; + menu = NULL; + cCondWait::SleepMs(100); + if (Action == CRA_DISCARD) { + SendCloseMMI(); + dsyslog("CAM %d: DISCARD", CamSlot()->SlotNumber()); + } + else if (Action == CRA_CONFIRM) { + SendMenuAnswer(1); + dsyslog("CAM %d: CONFIRM", CamSlot()->SlotNumber()); + } + else if (Action == CRA_SELECT) { + SendMenuAnswer(Select + 1); + dsyslog("CAM %d: SELECT %d", CamSlot()->SlotNumber(), Select + 1); + } + } } } break; @@ -1319,6 +1477,19 @@ void cCiMMI::Process(int Length, const uint8_t *Data) l--; // I really wonder why there is no text length field here... enquiry->text = CopyString(l, d); + int Action = CamResponses.GetMatch(CamSlot()->SlotNumber(), enquiry->text); + if (Action > CRA_NONE) { + char s[enquiry->expectedLength * 2]; + snprintf(s, sizeof(s), "%d", Action); + if (int(strlen(s)) == enquiry->expectedLength) { + delete enquiry; + enquiry = NULL; + SendAnswer(s); + dsyslog("CAM %d: PIN", CamSlot()->SlotNumber()); + } + else + esyslog("CAM %d: ERROR: unexpected PIN length %d, expected %d", CamSlot()->SlotNumber(), int(strlen(s)), enquiry->expectedLength); + } } } break; @@ -1449,6 +1620,7 @@ void cCiMenu::Abort(void) cCiEnquiry::cCiEnquiry(cCiMMI *MMI) { mmi = MMI; + mutex = NULL; text = NULL; blind = false; expectedLength = 0; |