main/bsod.cpp

   1 #include <string.h>
   2 #include <signal.h>
   3 #include <asm/ptrace.h>
   4
   5 #include <lib/base/eerror.h>
   6 #include <lib/base/smartptr.h>
   7 #include <lib/base/nconfig.h>
   8 #include <lib/gdi/grc.h>
   9 #include <lib/gdi/gfbdc.h>
  10 #ifdef WITH_SDL
  11 #include <lib/gdi/sdl.h>
  12 #endif
  13
  14 #include "version.h"
  15
  16 /************************************************/
  17
  18 #define CRASH_EMAILADDR "crashlog@dream-multimedia-tv.de"
  19 #define STDBUFFER_SIZE 512
  20 #define RINGBUFFER_SIZE 16384
  21 static char ringbuffer[RINGBUFFER_SIZE];
  22 static int ringbuffer_head;
  23
  24 static void addToLogbuffer(const char *data, int len)
  25 {
  26         while (len)
  27         {
  28                 int remaining = RINGBUFFER_SIZE - ringbuffer_head;
  29
  30                 if (remaining > len)
  31                         remaining = len;
  32
  33                 memcpy(ringbuffer + ringbuffer_head, data, remaining);
  34                 len -= remaining;
  35                 data += remaining;
  36                 ringbuffer_head += remaining;
  37                 if (ringbuffer_head >= RINGBUFFER_SIZE)
  38                         ringbuffer_head = 0;
  39         }
  40 }
  41
  42 static std::string getLogBuffer()
  43 {
  44         int begin = ringbuffer_head;
  45         while (ringbuffer[begin] == 0)
  46         {
  47                 ++begin;
  48                 if (begin == RINGBUFFER_SIZE)
  49                         begin = 0;
  50                 if (begin == ringbuffer_head)
  51                         return "";
  52         }
  53         if (begin < ringbuffer_head)
  54                 return std::string(ringbuffer + begin, ringbuffer_head - begin);
  55         else
  56         {
  57                 return std::string(ringbuffer + begin, RINGBUFFER_SIZE - begin) + std::string(ringbuffer, ringbuffer_head);
  58         }
  59 }
  60
  61 static void addToLogbuffer(int level, const std::string &log)
  62 {
  63         addToLogbuffer(log.c_str(), log.size());
  64 }
  65
  66 static std::string getConfigFileValue(const char *entry)
  67 {
  68         std::string configfile = "/etc/enigma2/settings";
  69         std::string configvalue;
  70         if (entry)
  71         {
  72                 ePythonConfigQuery::getConfigValue(entry, configvalue);
  73                 if (configvalue != "") //we get at least the default value if python is still alive
  74                 {
  75                         return configvalue;
  76                 }
  77                 else // get value from enigma2 settings file
  78                 {
  79                         FILE *f = fopen(configfile.c_str(), "r");
  80                         if (!f)
  81                         {
  82                                 return "Error";
  83                         }
  84                         while (1)
  85                         {
  86                                 char line[1024];
  87                                 if (!fgets(line, 1024, f))
  88                                         break;
  89                                 if (!strncmp(line, entry, strlen(entry) ))
  90                                 {
  91                                         if (strlen(line) && line[strlen(line)-1] == '\r')
  92                                                 line[strlen(line)-1] = 0;
  93                                         if (strlen(line) && line[strlen(line)-1] == '\n')
  94                                                 line[strlen(line)-1] = 0;
  95                                         std::string tmp = line;
  96                                         int posEqual = tmp.find("=", 0);
  97                                         configvalue = tmp.substr(posEqual+1);
  98                                 }
  99                         }
 100                         fclose(f);
 101                         return configvalue;
 102                 }
 103         }
 104 }
 105
 106 static std::string getFileContent(const char *file)
 107 {
 108         std::string filecontent;
 109
 110         if (file)
 111         {
 112                 FILE *f = fopen(file, "r");
 113                 if (!f)
 114                 {
 115                         return "Error";
 116                 }
 117                 while (1)
 118                 {
 119                         char line[1024];
 120                         if (!fgets(line, 1024, f))
 121                                 break;
 122                         std::string tmp = line;
 123                         std::string password;
 124                         int pwdpos = tmp.find(".password=", 0);
 125                         if( pwdpos != std::string::npos)
 126                         {
 127                                 filecontent += tmp.substr(0,pwdpos +10);
 128                                 for ( int pos = pwdpos +10; pos < tmp.length()-1; ++pos )
 129                                 {
 130                                         filecontent += "X";
 131                                 }
 132                                 filecontent += "\n";
 133                         }
 134                         else {
 135                                 filecontent += line;
 136                         }
 137                 }
 138                 fclose(f);
 139         }
 140         return filecontent;
 141 }
 142
 143 static std::string execCommand(char* cmd) {
 144         FILE* pipe = popen(cmd, "r");
 145         if (!pipe)
 146                 return "Error";
 147         char buffer[STDBUFFER_SIZE];
 148         std::string result = "";
 149         while(!feof(pipe))
 150         {
 151                 if(!fgets(buffer,STDBUFFER_SIZE, pipe))
 152                         break;
 153                 result += buffer;
 154         }
 155         pclose(pipe);
 156         return result;
 157 }
 158
 159 extern std::string execCommand();
 160 extern std::string getConfigFileValue();
 161 extern std::string getFileContent();
 162 extern std::string getLogBuffer();
 163
 164 #define INFOFILE "/maintainer.info"
 165
 166 void bsodFatal(const char *component)
 167 {
 168         char logfile[128];
 169         sprintf(logfile, "/media/hdd/enigma2_crash_%u.log", (unsigned int)time(0));
 170         FILE *f = fopen(logfile, "wb");
 171
 172         std::string lines = getLogBuffer();
 173
 174                 /* find python-tracebacks, and extract "  File "-strings */
 175         size_t start = 0;
 176
 177         char crash_emailaddr[256] = CRASH_EMAILADDR;
 178         char crash_component[256] = "enigma2";
 179
 180         if (component)
 181                 snprintf(crash_component, 256, component);
 182         else
 183         {
 184                 while ((start = lines.find("\n  File \"", start)) != std::string::npos)
 185                 {
 186                         start += 9;
 187                         size_t end = lines.find("\"", start);
 188                         if (end == std::string::npos)
 189                                 break;
 190                         end = lines.rfind("/", end);
 191                                 /* skip a potential prefix to the path */
 192                         unsigned int path_prefix = lines.find("/usr/", start);
 193                         if (path_prefix != std::string::npos && path_prefix < end)
 194                                 start = path_prefix;
 195
 196                         if (end == std::string::npos)
 197                                 break;
 198                         if (end - start >= (256 - strlen(INFOFILE)))
 199                                 continue;
 200                         char filename[256];
 201                         snprintf(filename, 256, "%s%s", lines.substr(start, end - start).c_str(), INFOFILE);
 202                         FILE *cf = fopen(filename, "r");
 203                         if (cf)
 204                         {
 205                                 fgets(crash_emailaddr, sizeof crash_emailaddr, cf);
 206                                 if (*crash_emailaddr && crash_emailaddr[strlen(crash_emailaddr)-1] == '\n')
 207                                         crash_emailaddr[strlen(crash_emailaddr)-1] = 0;
 208
 209                                 fgets(crash_component, sizeof crash_component, cf);
 210                                 if (*crash_component && crash_component[strlen(crash_component)-1] == '\n')
 211                                         crash_component[strlen(crash_component)-1] = 0;
 212                                 fclose(cf);
 213                         }
 214                 }
 215         }
 216
 217         if (f)
 218         {
 219                 time_t t = time(0);
 220                 char crashtime[STDBUFFER_SIZE];
 221                 sprintf(crashtime, "%s",ctime(&t));
 222                 if (strlen(crashtime) && crashtime[strlen(crashtime)-1] == '\n')
 223                                 crashtime[strlen(crashtime)-1] = 0;
 224                 fprintf(f, "<?xml version=\"1.0\" encoding=\"iso-8859-1\" ?>\n<opendreambox>\n");
 225                 fprintf(f, "\t<enigma2>\n");
 226                 fprintf(f, "\t\t<crashdate>%s</crashdate>\n", crashtime);
 227 #ifdef ENIGMA2_CHECKOUT_TAG
 228                 fprintf(f, "\t\t<checkouttag>" ENIGMA2_CHECKOUT_TAG "</checkouttag>\n");
 229 #else
 230                 fprintf(f, "\t\t<compiledate>" __DATE__ "</compiledate>\n");
 231 #endif
 232 #ifdef ENIGMA2_CHECKOUT_ROOT
 233                 fprintf(f, "\t\t<checkoutroot>" ENIGMA2_CHECKOUT_ROOT "</checkoutroot>\n");
 234 #endif
 235                 fprintf(f, "\t\t<contactemail>%s</contactemail>\n", crash_emailaddr);
 236                 fprintf(f, "\t\t<!-- Please email this crashlog to above address -->\n");
 237                 fprintf(f, "\t</enigma2>\n");
 238
 239                 fprintf(f, "\t<image>\n");
 240                 std::string model = getFileContent("/proc/stb/info/model");
 241                 if (model != "Error")
 242                 {
 243                         char modelname[STDBUFFER_SIZE];
 244                         sprintf(modelname, "%s",model.c_str());
 245                         if (strlen(modelname) && modelname[strlen(modelname)-1] == '\n')
 246                                 modelname[strlen(modelname)-1] = 0;
 247                         fprintf(f, "\t\t<dreamboxmodel>%s</dreamboxmodel>\n", modelname);
 248                 }
 249                 std::string kernel = getFileContent("/proc/cmdline");
 250                 if (kernel != "Error")
 251                 {
 252                         char kernelcmd[STDBUFFER_SIZE];
 253                         sprintf(kernelcmd, "%s",kernel.c_str());
 254                         if (strlen(kernelcmd) && kernelcmd[strlen(kernelcmd)-1] == '\n')
 255                                 kernelcmd[strlen(kernelcmd)-1] = 0;
 256                         fprintf(f, "\t\t<kernelcmdline>%s</kernelcmdline>\n", kernelcmd);
 257                 }
 258                 std::string sendAnonCrashlog = getConfigFileValue("config.plugins.crashlogautosubmit.sendAnonCrashlog");
 259                 if (sendAnonCrashlog == "False" || sendAnonCrashlog == "false") // defaults to true... default anonymized crashlogs
 260                 {
 261                         std::string ca = getFileContent("/proc/stb/info/ca");
 262                         if (ca != "Error")
 263                         {
 264                                 char dreamboxca[STDBUFFER_SIZE];
 265                                 sprintf(dreamboxca, "%s",ca.c_str());
 266                                 if (strlen(dreamboxca) && dreamboxca[strlen(dreamboxca)-1] == '\n')
 267                                         dreamboxca[strlen(dreamboxca)-1] = 0;
 268                                 fprintf(f, "\t\t<dreamboxca>\n\t\t<![CDATA[\n%s\n\t\t]]>\n\t\t</dreamboxca>\n", dreamboxca);
 269                         }
 270                         std::string settings = getFileContent("/etc/enigma2/settings");
 271                         if (settings != "Error")
 272                         {
 273                                 fprintf(f, "\t\t<enigma2settings>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</enigma2settings>\n", settings.c_str());
 274                         }
 275                 }
 276                 std::string addNetwork = getConfigFileValue("config.plugins.crashlogautosubmit.addNetwork");
 277                 if (addNetwork == "True" || addNetwork == "true")
 278                 {
 279                         std::string nwinterfaces = getFileContent("/etc/network/interfaces");
 280                         if (nwinterfaces != "Error")
 281                         {
 282                                 fprintf(f, "\t\t<networkinterfaces>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</networkinterfaces>\n", nwinterfaces.c_str());
 283                         }
 284                         std::string dns = getFileContent("/etc/resolv.conf");
 285                         if (dns != "Error")
 286                         {
 287                                 fprintf(f, "\t\t<dns>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</dns>\n", dns.c_str());
 288                         }
 289                         std::string defaultgw = getFileContent("/etc/default_gw");
 290                         if (defaultgw != "Error")
 291                         {
 292                                 char gateway[STDBUFFER_SIZE];
 293                                 sprintf(gateway, "%s",defaultgw.c_str());
 294                                 if (strlen(gateway) && gateway[strlen(gateway)-1] == '\n')
 295                                         gateway[strlen(gateway)-1] = 0;
 296                                 fprintf(f, "\t\t<defaultgateway>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</defaultgateway>\n", gateway);
 297                         }
 298                 }
 299                 std::string addWlan = getConfigFileValue("config.plugins.crashlogautosubmit.addWlan");
 300                 if (addWlan == "True" || addWlan == "true")
 301                 {
 302                         std::string wpasupplicant = getFileContent("/etc/wpa_supplicant.conf");
 303                         if (wpasupplicant != "Error")
 304                         {
 305                                 fprintf(f, "\t\t<wpasupplicant>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</wpasupplicant>\n", wpasupplicant.c_str());
 306                         }
 307                 }
 308                 std::string imageversion = getFileContent("/etc/image-version");
 309                 if (imageversion != "Error")
 310                 {
 311                         fprintf(f, "\t\t<imageversion>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</imageversion>\n", imageversion.c_str());
 312                 }
 313                 std::string imageissue = getFileContent("/etc/issue.net");
 314                 if (imageissue != "Error")
 315                 {
 316                         fprintf(f, "\t\t<imageissue>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</imageissue>\n", imageissue.c_str());
 317                 }
 318                 fprintf(f, "\t</image>\n");
 319
 320                 fprintf(f, "\t<software>\n");
 321                 std::string installedplugins = execCommand("ipkg list_installed | grep enigma2");
 322                 fprintf(f, "\t\t<enigma2software>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</enigma2software>\n", installedplugins.c_str());
 323                 std::string dreambox = execCommand("ipkg list_installed | grep dream");
 324                 fprintf(f, "\t\t<dreamboxsoftware>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</dreamboxsoftware>\n", dreambox.c_str());
 325                 std::string gstreamer = execCommand("ipkg list_installed | grep gst");
 326                 fprintf(f, "\t\t<gstreamersoftware>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</gstreamersoftware>\n", gstreamer.c_str());
 327                 fprintf(f, "\t</software>\n");
 328
 329                 fprintf(f, "\t<crashlogs>\n");
 330                 std::string buffer = getLogBuffer();
 331                 fprintf(f, "\t\t<enigma2crashlog>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</enigma2crashlog>\n", buffer.c_str());
 332                 std::string pythonmd5 = execCommand("find /usr/lib/enigma2/python/ -name \"*.py\" | xargs md5sum");
 333                 fprintf(f, "\t\t<pythonMD5sum>\n\t\t<![CDATA[\n%s\t\t]]>\n\t\t</pythonMD5sum>\n", pythonmd5.c_str());
 334                 fprintf(f, "\t</crashlogs>\n");
 335
 336                 fprintf(f, "\n</opendreambox>\n");
 337                 fclose(f);
 338
 339         }
 340
 341 #ifdef WITH_SDL
 342         ePtr<gSDLDC> my_dc;
 343         gSDLDC::getInstance(my_dc);
 344 #else
 345         ePtr<gFBDC> my_dc;
 346         gFBDC::getInstance(my_dc);
 347 #endif
 348
 349         {
 350                 gPainter p(my_dc);
 351                 p.resetOffset();
 352                 p.resetClip(eRect(ePoint(0, 0), my_dc->size()));
 353 #ifdef ENIGMA2_CHECKOUT_TAG
 354                 if (ENIGMA2_CHECKOUT_TAG[0] == 'T') /* tagged checkout (release) */
 355                         p.setBackgroundColor(gRGB(0x0000C0));
 356                 else if (ENIGMA2_CHECKOUT_TAG[0] == 'D') /* dated checkout (daily experimental build) */
 357                 {
 358                         srand(time(0));
 359                         int r = rand();
 360                         unsigned int col = 0;
 361                         if (r & 1)
 362                                 col |= 0x800000;
 363                         if (r & 2)
 364                                 col |= 0x008000;
 365                         if (r & 4)
 366                                 col |= 0x0000c0;
 367                         p.setBackgroundColor(gRGB(col));
 368                 }
 369 #else
 370                         p.setBackgroundColor(gRGB(0x008000));
 371 #endif
 372
 373                 p.setForegroundColor(gRGB(0xFFFFFF));
 374
 375                 ePtr<gFont> font = new gFont("Regular", 20);
 376                 p.setFont(font);
 377                 p.clear();
 378
 379                 eRect usable_area = eRect(100, 70, my_dc->size().width() - 150, 100);
 380
 381                 char text[512];
 382                 snprintf(text, 512, "We are really sorry. Your Dreambox encountered "
 383                         "a software problem, and needs to be restarted. "
 384                         "Please send the logfile created in /hdd/ to %s.\n"
 385                         "Your Dreambox restarts in 10 seconds!\n"
 386                         "Component: %s",
 387                         crash_emailaddr, crash_component);
 388
 389                 p.renderText(usable_area, text, gPainter::RT_WRAP|gPainter::RT_HALIGN_LEFT);
 390
 391                 usable_area = eRect(100, 170, my_dc->size().width() - 180, my_dc->size().height() - 20);
 392
 393                 int i;
 394
 395                 size_t start = std::string::npos + 1;
 396                 for (i=0; i<20; ++i)
 397                 {
 398                         start = lines.rfind('\n', start - 1);
 399                         if (start == std::string::npos)
 400                         {
 401                                 start = 0;
 402                                 break;
 403                         }
 404                 }
 405
 406                 font = new gFont("Regular", 14);
 407                 p.setFont(font);
 408
 409                 p.renderText(usable_area,
 410                         lines.substr(start), gPainter::RT_HALIGN_LEFT);
 411                 sleep(10);
 412         }
 413
 414         raise(SIGKILL);
 415 }
 416
 417 #if defined(__MIPSEL__)
 418 void oops(const mcontext_t &context, int dumpcode)
 419 {
 420         eDebug("PC: %08lx", (unsigned long)context.pc);
 421         int i;
 422         for (i=0; i<32; ++i)
 423         {
 424                 eDebugNoNewLine(" %08x", (int)context.gregs[i]);
 425                 if ((i&3) == 3)
 426                         eDebug("");
 427         }
 428                 /* this is temporary debug stuff. */
 429         if (dumpcode && ((unsigned long)context.pc) > 0x10000) /* not a zero pointer */
 430         {
 431                 eDebug("As a final action, i will try to dump a bit of code.");
 432                 eDebug("I just hope that this won't crash.");
 433                 int i;
 434                 eDebugNoNewLine("%08lx:", (unsigned long)context.pc);
 435                 for (i=0; i<0x20; ++i)
 436                         eDebugNoNewLine(" %02x", ((unsigned char*)context.pc)[i]);
 437                 eDebug(" (end)");
 438         }
 439 }
 440 #else
 441 #warning "no oops support!"
 442 #define NO_OOPS_SUPPORT
 443 #endif
 444
 445 void handleFatalSignal(int signum, siginfo_t *si, void *ctx)
 446 {
 447         ucontext_t *uc = (ucontext_t*)ctx;
 448
 449 #ifndef NO_OOPS_SUPPORT
 450         oops(uc->uc_mcontext, signum == SIGSEGV || signum == SIGABRT);
 451 #endif
 452         eDebug("-------");
 453         bsodFatal("enigma2, signal");
 454 }
 455
 456 void bsodCatchSignals()
 457 {
 458         struct sigaction act;
 459         act.sa_handler = SIG_DFL;
 460         act.sa_sigaction = handleFatalSignal;
 461         act.sa_flags = SA_RESTART | SA_SIGINFO;
 462         if (sigemptyset(&act.sa_mask) == -1)
 463                 perror("sigemptyset");
 464
 465                 /* start handling segfaults etc. */
 466         sigaction(SIGSEGV, &act, 0);
 467         sigaction(SIGILL, &act, 0);
 468         sigaction(SIGBUS, &act, 0);
 469         sigaction(SIGABRT, &act, 0);
 470 }
 471
 472 void bsodLogInit()
 473 {
 474         logOutput.connect(addToLogbuffer);
 475 }