/*-
* Copyright (c) 2002-2018 The UbixOS Project.
* All rights reserved.
*
* This was developed by Christopher W. Olsen for the UbixOS Project.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
*
* 1) Redistributions of source code must retain the above copyright notice, this list of
* conditions, the following disclaimer and the list of authors.
* 2) Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions, the following disclaimer and the list of authors in the documentation and/or
* other materials provided with the distribution.
* 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/descrip.h>
#include <sys/sysproto_posix.h>
#include <sys/thread.h>
#include <lib/kprintf.h>
#include <ubixos/endtask.h>
#include <lib/kmalloc.h>
#include <assert.h>
#include <sys/select.h>
// XXX MrOlsen (2020-01-30) No longer needed -> static struct file *kern_files = 0x0;
int fcntl(struct thread *td, struct sys_fcntl_args *uap) {
struct file *fp = 0x0;
struct file *dup_fp = 0x0;
int i = 0;
if (td->o_files[uap->fd] == 0x0) {
kprintf("ERROR!!!\n");
return (-1);
}
kprintf("CMD: %i", uap->cmd);
fp = (struct file*) td->o_files[uap->fd];
switch (uap->cmd) {
case 17:
/* First 5 Descriptors Are Reserved */
for (i = 5; i < MAX_FILES; i++) {
if (td->o_files[i] == 0x0) {
dup_fp = (struct file*) kmalloc(sizeof(struct file));
memcpy(dup_fp, fp, sizeof(struct file));
td->o_files[i] = (void*) dup_fp;
td->td_retval[0] = i;
((struct file*) td->o_files[uap->fd])->fd->dup++;
fclose(((struct file*) td->o_files[uap->fd])->fd);
//td->o_files[uap->fd] = 0;
if (fdestroy(td, fp, uap->fd) != 0x0)
kprintf("[%s:%i] fdestroy(0x%X, 0x%X) failed\n", __FILE__, __LINE__, fp, td->o_files[uap->fd]);
kprintf("FCNTL: %i, %i, 0x%X.", i, uap->fd, fp);
break;
}
}
break;
case 3:
if (uap->fd > 3)
fp->f_flag = O_RDWR & O_ACCMODE;
td->td_retval[0] = fp->f_flag;
break;
case 4:
fp->f_flag &= ~FCNTLFLAGS;
fp->f_flag |= FFLAGS(uap->arg & ~O_ACCMODE) & FCNTLFLAGS;
break;
default:
kprintf("ERROR DEFAULT: [%i]", uap->fd);
}
return (0x0);
}
int sys_fcntl(struct thread *td, struct sys_fcntl_args *uap) {
return (fcntl(td, uap));
}
int falloc(struct thread *td, struct file **resultfp, int *resultfd) {
struct file *fp = 0x0;
int i = 0;
fp = (struct file*) kmalloc(sizeof(struct file));
/* First 5 Descriptors Are Reserved */
for (i = 5; i < MAX_FILES; i++) {
if (td->o_files[i] == 0x0) {
td->o_files[i] = (void*) fp;
if (resultfd)
*resultfd = i;
if (resultfp)
*resultfp = fp;
goto allocated;
}
}
kfree(fp);
*resultfp = 0x0;
*resultfd = 0x0;
allocated:
return (0x0);
}
#include <sys/ioctl.h>
/**
* @brief This destroys a thread local file descriptor.
*
* @details This function will destroy the thread local file file specified as fd,
* for sanity it requires the file descriptor id and memory address to check before destroying.
*
* @note This text shall only show you, how such a \"note\" section
* is looking. There is nothing which really needs your notice,
* so you do not really need to read this section.
*
* @param td Pointer to thread which initiated the syscall.
* @param fp Pointer to the thread local file which you want to destroy.
* @param fd File descriptor id that points to the thread local file which you want to destroy.
*
* @return The error return code of the function.
*
* @retval 0 The function is successfully executed
* @retval -1 An error occurred
*/
int fdestroy(struct thread *td, struct file *fp, int fd) {
int error = 0;
if (td->o_files[fd] != fp) {
error = -1;
}
else {
kfree(td->o_files[fd]);
td->o_files[fd] = 0x0;
}
return (error);
}
int close(struct thread *td, struct close_args *uap) {
#ifdef DEBUG
kprintf("[%s:%i]",__FILE__,__LINE__);
#endif
kprintf("[%s:%i]", __FILE__, __LINE__);
kfree((void*) td->o_files[uap->fd]);
td->o_files[uap->fd] = 0x0;
td->td_retval[0] = 0x0;
return (0x0);
}
/*!
* \brief return data table size
*/
int getdtablesize(struct thread *td, struct getdtablesize_args *uap) {
#ifdef DEBUG
kprintf("[%s:%i]",__FILE__,__LINE__);
#endif
td->td_retval[0] = O_FILES;
return (0);
}
/* HACK */
int fstat(struct thread *td, struct sys_fstat_args *uap) {
struct file *fp = 0x0;
#ifdef DEBUG
kprintf("[%s:%i]",__FILE__,__LINE__);
#endif
fp = (struct file*) _current->td.o_files[uap->fd];
uap->sb->st_mode = 0x2180;
uap->sb->st_blksize = 0x1000;
kprintf("fstat: %i", uap->fd);
return (0x0);
}
/*!
* \brief ioctl functionality not implimented yet
*
* \returns NULL for now
*/
int ioctl(struct thread *td, struct ioctl_args *uap) {
td->td_retval[0] = 0x0;
return (0x0);
}
/*!
* \brief get pointer to file fd in specified thread
*
* \return returns fp
*/
int getfd(struct thread *td, struct file **fp, int fd) {
int error = 0x0;
#ifdef DEBUG
kprintf("[%s:%i]",__FILE__,__LINE__);
#endif
*fp = (struct file*) td->o_files[fd];
if (fp == 0x0)
error = -1;
return (error);
}
int sys_ioctl(struct thread *td, struct sys_ioctl_args *args) {
switch (args->com) {
case TIOCGETA:
if (args->fd == 0 || args->fd == 1) {
struct termios *t = (struct termios*) args->data;
t->c_iflag = 0x2B02;
t->c_oflag = 0x3;
t->c_cflag = 0x4B00;
t->c_lflag = 0x5CB;
t->c_cc[0] = 4;
t->c_cc[1] = 255;
t->c_cc[2] = 255;
t->c_cc[3] = 127;
t->c_cc[4] = 23;
t->c_cc[5] = 21;
t->c_cc[6] = 18;
t->c_cc[7] = 8;
t->c_cc[8] = 3;
t->c_cc[9] = 28;
t->c_cc[10] = 26;
t->c_cc[11] = 25;
t->c_cc[12] = 17;
t->c_cc[13] = 19;
t->c_cc[14] = 22;
t->c_cc[15] = 15;
t->c_cc[16] = 1;
t->c_cc[17] = 0;
t->c_cc[18] = 20;
t->c_cc[19] = 255;
t->c_ispeed = 0x9600;
t->c_ospeed = 0x9600;
td->td_retval[0] = 0;
}
else {
td->td_retval[0] = -1;
}
break;
case TIOCGWINSZ:
asm("nop");
struct winsize *win = (struct winsize*) args->data;
win->ws_row = 50;
win->ws_col = 80;
break;
default:
kprintf("ioFD:%i:0x%X!", args->fd, args->com);
break;
}
td->td_retval[0] = 0x0;
return (0x0);
}
int sys_select(struct thread *td, struct sys_select_args *args) {
int error = 0x0;
/*
int i = 0x0;
fd_set sock_rfds;
fd_set sock_wfds;
fd_set sock_efds;
FD_ZERO(&sock_rfds);
FD_ZERO(&sock_wfds);
FD_ZERO(&sock_efds);
if (args->in != 0x0) {
for (i = 0; i < args->nd; i++) {
FD_SET(((struct file * ) td->o_files[args->in[0]]).socket, &sock_rfds);
}
}
if (args->ou != 0x0) {
for (i = 0; i < args->nd; i++) {
FD_SET(((struct file * ) td->o_files[args->ou[0]]).socket, &sock_wfds);
}
}
if (args->ex != 0x0) {
for (i = 0; i < args->nd; i++) {
FD_SET(((struct file * ) td->o_files[args->ex[0]]).socket, &sock_efds);
}
}
if ((td->td_retval[0] = lwip_select(args->nd, &sock_rfds, &sock_wfds, &sock_efds, args->tv)) == -1)
error = -1;
if (args->in != 0x0) {
for (i = 0; i < MAX_FILES; i++) {
if (!FD_ISSET(((struct file * ) td->o_files[args->ou[0]]).socket, &sock_rfds))
FD_CLR(((struct file * ) td->o_files[args->ou[0]]).socket, args->in);
}
}
if (args->ou != 0x0) {
for (i = 0; i < MAX_FILES; i++) {
if (!FD_ISSET(((struct file * ) td->o_files[args->ou[0]]).socket, &sock_wfds))
FD_CLR(((struct file * ) td->o_files[args->ou[0]]).socket, args->ou);
}
}
if (args->ex != 0x0) {
for (i = 0; i < MAX_FILES; i++) {
if (!FD_ISSET(((struct file * ) td->o_files[args->ou[0]]).socket, &sock_efds))
FD_CLR(((struct file * ) td->o_files[args->ou[0]]).socket, args->ex);
}
}
*/
if ((td->td_retval[0] = lwip_select(args->nd, args->in, args->ou, args->ex, args->tv)) == -1)
error = -1;
return (error);
}
int dup2(struct thread *td, u_int32_t from, u_int32_t to) {
struct file *fp = 0x0;
struct file *dup_fp = 0x0;
if (to > MAX_FILES) {
kprintf("TO: %i > MAX_FILES: %i", to, MAX_FILES);
return (-1);
}
else if (td->o_files[to] != 0x0) {
fclose(((struct file*) td->o_files[to])->fd);
if (fdestroy(td, (struct file*) td->o_files[to], to) != 0x0)
kprintf("[%s:%i] Error with fdestroy!", __FILE__, __LINE__);
}
fp = (struct file*) td->o_files[from];
dup_fp = (struct file*) kmalloc(sizeof(struct file));
memcpy(dup_fp, fp, sizeof(struct file));
td->o_files[to] = (void*) dup_fp;
((struct file*) td->o_files[from])->fd->dup++;
return (0x0);
}
int sys_dup2(struct thread *td, struct sys_dup2_args *args) {
int error = 0x0;
if ((td->td_retval[0] = dup2(td, args->from, args->to)) == -1)
error = -1;
return (error);
}
