void setup_PIC(){
_Cli();
_outb(0x21,0xFC);
_outb(0xA1,0xFF);
_Sti();
return;
}
int Idle(int argc, char* argv[])
{
_Sti();
while(1)
;
return 0;
}
int imprimeDos(int argc, char *argv){
_Sti();
while(1)
{
printf("2");
}
return EXIT_SUCCESS;
}
void logout(int argc, char * argv[])
{
int i;
usrLoged = 0;
for(i = 0; i < 4; i++)
kill(terminals[i].PID);
logPID = CreateProcessAt("logUsr", (int(*)(int, char**))logUser, currentProcessTTY, 0, (char**)0, PAGE_SIZE, 4, 1);
_Sti();
}
static void
b_write(int p, const void *buff, int size)
{
int i;
_Cli();
for(i = 0; i < size; i++) {
myout( p , ( (byte *) buff )[i] );
}
_Sti();
}
void send_departing_buffer(int cursor) {
while (is_transmit_empty() == 0)
;
int i = 0;
for (i = 0; i < cursor; i++) {
_Cli();
_outb(SERIAL_PORT, departing_buffer[i]); //no quiero ser interrumpido mientras escribo en el P.S
_Sti();
}
}
/**********************************************
Starting point of the whole OS
*************************************************/
int
kmain()
{
int i, h;
char * buffer = calloc(512 , 1);
_Cli();
k_clear_screen();
printf("screen clear\n");
//cache_initarray();
printf("array init\n");
//cache_sortarray();
printf("array sort\n");
initializeSemaphoreTable();
printf("semaphore init\n");
initializeIDT();
unmaskPICS();
initializePaging();
_StartCR3();
SetupScheduler();
//printf("after SetupScheduler\n");
for(h = 0; h < 200; h++){
write_disk(0,h,buffer,BLOCK_SIZE,0);
}
fd_table = (filedescriptor *)calloc(100,1);
masterBootRecord * mbr = (masterBootRecord *)malloc(512);
superblock = (masterBlock*)malloc(512);
bitmap = (BM*)calloc(BITMAP_SIZE,1);
inodemap = (IM*)calloc(INODEMAP_SIZE,1);
read_disk(0,0,mbr,BLOCK_SIZE,0);
if ( mbr->existFS == 0 ){
init_filesystem("Chinux", mbr);
}else{
load_filesystem();
}
ready = NULL;
for(i = 0; i < 4; i++)
startTerminal(i);
//free(mbr);
logPID = CreateProcessAt("Login", (int(*)(int, char**))logUser, 0, 0, (char**)0, PAGE_SIZE, 4, 1);
_Sti();
while(TRUE)
;
return 1;
}
static void
s_write(const void* buff, int size)
{
int i;
char *video = (char *) 0xb8000;
_Cli();
for(i = 0; i < size; i++)
{
video[screen_pos++]= *((char*)buff+i);
video[screen_pos++]= WHITE_TXT;
}
_Sti();
}
static void
k_read(char *buff, int size)
{
int i=0;
_Cli();
while( !BufferIsEmpty() && i< size ) {
buff[i] = GetFromBuffer() ;
i++;
}
_Sti();
}
void k_shutdown(){
k_disable();
k_shutdownScreen();
// Just to appreciate the art
_Sti();
sleep(30);
if(ACPIinitialized()){
acpiPowerOff();
}else{
_Cli();
while(1){}
}
return;
}
kmain() {
int i, num;
/* Borra la pantalla. */
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ0 */
setup_IDT_entry(&idt[0x08], 0x08, (dword) & _int_08_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ1 */
setup_IDT_entry(&idt[0x09], 0x08, (dword) & _int_09_hand, ACS_INT, 0);
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE int80h */
setup_IDT_entry(&idt[0x80], 0x08, (dword) & _int_80_hand, ACS_INT, 0);
//TODO: CARGAR LA PAG DE TABLAS
/* Carga de IDTR */
idtr.base = 0;
idtr.base += (dword) & idt;
idtr.limit = sizeof(idt) - 1;
_lidt(&idtr);
_Cli();
/* Habilito interrupcion de timer tick*/
_mascaraPIC1(0xFC);
_mascaraPIC2(0xFF);
_Sti();
startKeyboard();
initVideo();
shellStart();
/* KeepAlive loop */
while (1) {
// Main del shell
shellMain();
}
}
static void
s_read(char *buff, int size) {
int i=0;
char * video;
video = (char *) 0xb8000;
_Cli();
while( i< size ) {
buff[i] = *(video + screen_pos + CANT_COLS *2);
i++;
}
_Sti();
}
void end_process(void)
{
PROCESS * proc;
PROCESS * parent;
processNode * aux;
int i;
_Cli();
actualKilled = 1;
proc = GetProcessByPID(CurrentPID);
if(!proc->foreground)
printf("[%d]\tDone\t%s\n", proc->pid, proc->name);
else{
parent = GetProcessByPID(proc->parent);
if(parent->waitingPid == proc->pid)
{
parent->waitingPid = 0;
awake_process(parent->pid);
}
}
aux = ((processNode *)ready);
if(aux->process->pid == CurrentPID)
ready = aux->next;
else {
while(aux->next != NULL && ((processNode *)aux->next)->process->pid != CurrentPID)
aux = ((processNode *)aux->next);
if(aux->next != NULL)
aux->next = ((processNode*)aux->next)->next;
}
for(i = 0; i < 100; i++)
if(last100[i] == proc->pid)
last100[i] = -1;
clear_proc_ptable(proc->pid);
printf("Welcome\n");
_Sti();
return ;
}
kmain()
{
int i,num;
int flag = 0;
int vendor = 0xffff;
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ0 y IRQ1 */
// setup_IDT_entry (&idt[0x08], 0x08, (dword)&_int_08_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x80], 0x08, (dword)&_int_80_hand, ACS_INT, 0);
/* Por default el teclado esta en ingles */
setup_IDT_entry (&idt[0x09], 0x08, (dword)&_int_09_hand_US,ACS_INT, 0);
/* Carga de IDTR */
idtr.base = 0;
idtr.base +=(dword) &idt;
idtr.limit = sizeof(idt)-1;
_lidt (&idtr);
_Cli();
/* Habilito interrupcion del teclado */
_mascaraPIC1(0xFD);
_mascaraPIC2(0xFF);
_Sti();
/* Se inicia el shell */
shell();
}
void logUser(void)
{
int i, fd, usrNotFound, j;
user * usr;
current = superblock->root;
currentUsr.group = ADMIN;
fd = do_open("usersfile", 777, 777);
usr = malloc(sizeof(user) * 100);
do_read(fd, (char *)usr, sizeof(user) * 100);
while(!usrLoged)
{
usrNotFound = 1;
printf("username: "******"%s", buffcopy);
for(i = 0; i < 100 && usr[i].usrID != 0 && usrNotFound; i++)
{
if(strcmp(usr[i].name, buffcopy))
{
usrNotFound = 0;
}
}
usrName = 0;
printf("\n");
clearTerminalBuffer(currentTTY);
for(j = 0; j < BUFFER_SIZE; j++)
buffcopy[j] = 0;
if(!usrNotFound)
{
printf("password: "******"%s", buffcopy);
if(strcmp(usr[i - 1].password, buffcopy))
{
usrLoged = 1;
currentUsr.usrID = usr[i - 1].usrID;
currentUsr.group = usr[i - 1].group;
}
else
printf("\nIncorrect password. Please try again");
password = 0;
printf("\n");
} else
printf("User not found. Please try again\n");
clearTerminalBuffer(currentTTY);
for(j = 0; j < BUFFER_SIZE; j++)
buffcopy[j] = 0;
}
terminals[0].PID = CreateProcessAt("Shell0", (int(*)(int, char**))shell, 0, 0, (char**)0, PAGE_SIZE, 2, 1);
//printf("terminals[0].PID \n");
terminals[1].PID = CreateProcessAt("Shell1", (int(*)(int, char**))shell, 1, 0, (char**)0, PAGE_SIZE, 2, 1);
//printf("terminals[1].PID \n");
terminals[2].PID = CreateProcessAt("Shell2", (int(*)(int, char**))shell, 2, 0, (char**)0, PAGE_SIZE, 2, 1);
//printf("terminals[2].PID \n");
terminals[3].PID = CreateProcessAt("Shell3", (int(*)(int, char**))shell, 3, 0, (char**)0, PAGE_SIZE, 2, 1);
//printf("terminals[3].PID \n");
//do_close(fd);
//free(usr);
_Sti();
return;
}
