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-rw-r--r--ci.c190
1 files changed, 181 insertions, 9 deletions
diff --git a/ci.c b/ci.c
index 55324535..4c3cb8fa 100644
--- a/ci.c
+++ b/ci.c
@@ -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;