systemtask.c

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/*****************************************************************************************
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 $Id: systemtask_8c-source.html 88 2016-01-12 00:11:29Z reddawg $

*****************************************************************************************/

#include <ubixos/systemtask.h>
#include <ubixos/kpanic.h>
#include <ubixos/exec.h>
#include <ubixos/tty.h>
#include <ubixos/sched.h>
#include <ubixos/vitals.h>
#include <lib/kmalloc.h>
#include <lib/kprintf.h>
#include <lib/bioscall.h>
#include <sde/sde.h>
#include <sys/io.h>
#include <vmm/vmm.h>
#include <mpi/mpi.h>
#include <string.h>

static unsigned char  *videoBuffer = (char *)0xB8000;


void systemTask() {
  mpi_message_t myMsg;
  uInt32       counter  = 0x0;
  int          i        = 0x0;
  int          *x       = 0x0;
  kTask_t      *tmpTask = 0x0;

  if (mpi_createMbox("system") != 0x0) {
    kpanic("Error: Error creating mailbox: system\n");
    }

  while(1) {
    if (mpi_fetchMessage("system",&myMsg) == 0x0) {
      kprintf("A");
      switch(myMsg.header) {
        case 0x69:
          x = (int *)&myMsg.data;
          kprintf("Switching to term: [%i][%i]\n",*x,myMsg.pid);
          schedFindTask(myMsg.pid)->term = tty_find(*x);
          break;
        case 1000:
          kprintf("Restarting the system in 5 seconds\n");
          counter = systemVitals->sysUptime + 5;
          while (systemVitals->sysUptime < counter) {
            sched_yield();
            }
          kprintf("Rebooting NOW!!!\n");
          while(inportByte(0x64) & 0x02);
          outportByte(0x64, 0xFE);
          break;
        case 31337:
           kprintf("system: backdoor opened\n");
           break;       
        case 0x80:
           if (!strcmp(myMsg.data,"sdeStart")) {
             kprintf("Starting SDE\n");
             //execThread(sdeThread,(uInt32)(kmalloc(0x2000)+0x2000),0x0);
             }
           else if (!strcmp(myMsg.data,"freePage")) {
            kprintf("kkk Free Pages");
             }
           else if (!strcmp(myMsg.data,"sdeStop")) {
             printOff = 0x0;
             biosCall(0x10,0x3,0x0,0x0,0x0,0x0,0x0,0x0,0x0);
             for (i=0x0;i<100;i++) asm("hlt");
             }
           break;
        default:
          kprintf("system: Received message %i:%s\n",myMsg.header,myMsg.data);
          break;
        }
      }

    /*
     Here we get the next task from the delete task queue 
     we first check to see if it has an fd attached for the binary and after that 
     we free the pages for the process and then free the task 
    */
    tmpTask = sched_getDelTask();    
    if (tmpTask != 0x0) {
      if (tmpTask->imageFd != 0x0)
        fclose(tmpTask->imageFd);
      vmmFreeProcessPages(tmpTask->id);
      kfree(tmpTask);
      }
    videoBuffer[0] = systemVitals->sysTicks;     
    sched_yield();
    }    
  
  return;
  }

/***
 END
 ***/

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