int main(int argc, char **argv) {
int forkres;
int master, slave;
/* Get subtest number */
if(argc != 2) {
printf("Usage: %s subtest_no\n", argv[0]);
exit(-1);
} else if(sscanf(argv[1], "%d", &subtest) != 1) {
printf("Usage: %s subtest_no\n", argv[0]);
exit(-1);
}
open_terminal(&master, &slave);
forkres = fork();
if(forkres == 0) do_child(master);
else if(forkres > 0) do_parent(forkres, slave);
else { /* Fork failed */
perror("Unable to fork");
exit(-1);
}
exit(-2); /* We're not supposed to get here. Both do_* routines should exit*/
}
int main(int argc, char* argv[])
{
if(argc<2)
{
printf("Argument is not correct\n");
return 0;
}
int fd = open_port(argv[1]);
int fd_tty = open_terminal();
configure_port(fd);
configure_terminal(fd_tty);
char rec=' ',rec_tty=' ';
while(fd!=-1 && fd_tty!=-1)
{
int data=read(fd,&rec,1);
int data_tty=read(fd_tty,&rec_tty,1);
if(data>0)
printf("%c",rec);
if(data_tty>0)
printf("%c",rec_tty);
if(rec_tty=='q')
break;
rec=' ';rec_tty=' ';
}
close(fd);
close(fd_tty);
return(0);
}
/*
* A newly allocated VT uses the font from the active VT. Here
* we update all possibly already allocated VTs with the configured
* font. It also allows to restart systemd-vconsole-setup.service,
* to apply a new font to all VTs.
*/
static void font_copy_to_all_vcs(int fd) {
struct vt_stat vcs = {};
unsigned char map8[E_TABSZ];
unsigned short map16[E_TABSZ];
struct unimapdesc unimapd;
struct unipair unipairs[USHRT_MAX];
int i, r;
/* get active, and 16 bit mask of used VT numbers */
r = ioctl(fd, VT_GETSTATE, &vcs);
if (r < 0)
return;
for (i = 1; i <= 15; i++) {
char vcname[16];
_cleanup_close_ int vcfd = -1;
struct console_font_op cfo = {};
if (i == vcs.v_active)
continue;
/* skip non-allocated ttys */
snprintf(vcname, sizeof(vcname), "/dev/vcs%i", i);
if (access(vcname, F_OK) < 0)
continue;
snprintf(vcname, sizeof(vcname), "/dev/tty%i", i);
vcfd = open_terminal(vcname, O_RDWR|O_CLOEXEC);
if (vcfd < 0)
continue;
/* copy font from active VT, where the font was uploaded to */
cfo.op = KD_FONT_OP_COPY;
cfo.height = vcs.v_active-1; /* tty1 == index 0 */
ioctl(vcfd, KDFONTOP, &cfo);
/* copy map of 8bit chars */
if (ioctl(fd, GIO_SCRNMAP, map8) >= 0)
ioctl(vcfd, PIO_SCRNMAP, map8);
/* copy map of 8bit chars -> 16bit Unicode values */
if (ioctl(fd, GIO_UNISCRNMAP, map16) >= 0)
ioctl(vcfd, PIO_UNISCRNMAP, map16);
/* copy unicode translation table */
/* unimapd is a ushort count and a pointer to an
array of struct unipair { ushort, ushort } */
unimapd.entries = unipairs;
unimapd.entry_ct = USHRT_MAX;
if (ioctl(fd, GIO_UNIMAP, &unimapd) >= 0) {
struct unimapinit adv = { 0, 0, 0 };
ioctl(vcfd, PIO_UNIMAPCLR, &adv);
ioctl(vcfd, PIO_UNIMAP, &unimapd);
}
}
}
int reset_terminal(const char *name) {
_cleanup_close_ int fd = -1;
fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
if (fd < 0)
return fd;
return reset_terminal_fd(fd, true);
}
int terminal_vhangup(const char *name) {
_cleanup_close_ int fd;
fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return fd;
return terminal_vhangup_fd(fd);
}
int reset_terminal(const char *name) {
_cleanup_close_ int fd = -1;
/* We open the terminal with O_NONBLOCK here, to ensure we
* don't block on carrier if this is a terminal with carrier
* configured. */
fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return fd;
return reset_terminal_fd(fd, true);
}
static int log_open_console(void) {
if (console_fd >= 0)
return 0;
if (getpid() == 1) {
console_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (console_fd < 0)
return console_fd;
} else
console_fd = STDERR_FILENO;
return 0;
}
static int log_open_console(void) {
if (console_fd >= 0)
return 0;
if (getpid() == 1) {
console_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (console_fd < 0) {
log_error("Failed to open /dev/console for logging: %s", strerror(-console_fd));
return console_fd;
}
log_debug("Successfully opened /dev/console for logging.");
} else
console_fd = STDERR_FILENO;
return 0;
}
/*
* A newly allocated VT uses the font from the active VT. Here
* we update all possibly already allocated VTs with the configured
* font. It also allows to restart systemd-vconsole-setup.service,
* to apply a new font to all VTs.
*/
static void font_copy_to_all_vcs(int fd) {
struct vt_stat vcs;
int i;
int r;
/* get active, and 16 bit mask of used VT numbers */
zero(vcs);
r = ioctl(fd, VT_GETSTATE, &vcs);
if (r < 0)
return;
for (i = 1; i <= 15; i++) {
char vcname[16];
int vcfd;
struct console_font_op cfo;
if (i == vcs.v_active)
continue;
/* skip non-allocated ttys */
snprintf(vcname, sizeof(vcname), "/dev/vcs%i", i);
if (access(vcname, F_OK) < 0)
continue;
snprintf(vcname, sizeof(vcname), "/dev/tty%i", i);
vcfd = open_terminal(vcname, O_RDWR|O_CLOEXEC);
if (vcfd < 0)
continue;
/* copy font from active VT, where the font was uploaded to */
zero(cfo);
cfo.op = KD_FONT_OP_COPY;
cfo.height = vcs.v_active-1; /* tty1 == index 0 */
ioctl(vcfd, KDFONTOP, &cfo);
close_nointr_nofail(vcfd);
}
}
int chvt(int vt) {
_cleanup_close_ int fd;
fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return -errno;
if (vt <= 0) {
int tiocl[2] = {
TIOCL_GETKMSGREDIRECT,
0
};
if (ioctl(fd, TIOCLINUX, tiocl) < 0)
return -errno;
vt = tiocl[0] <= 0 ? 1 : tiocl[0];
}
if (ioctl(fd, VT_ACTIVATE, vt) < 0)
return -errno;
return 0;
}
int main(int argc, char **argv) {
const char *vc;
char *vc_keymap = NULL;
char *vc_keymap_toggle = NULL;
char *vc_font = NULL;
char *vc_font_map = NULL;
char *vc_font_unimap = NULL;
int fd = -1;
bool utf8;
pid_t font_pid = 0, keymap_pid = 0;
bool font_copy = false;
int r = EXIT_FAILURE;
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
umask(0022);
if (argv[1])
vc = argv[1];
else {
vc = "/dev/tty0";
font_copy = true;
}
fd = open_terminal(vc, O_RDWR|O_CLOEXEC);
if (fd < 0) {
log_error("Failed to open %s: %m", vc);
goto finish;
}
if (!is_vconsole(fd)) {
log_error("Device %s is not a virtual console.", vc);
goto finish;
}
utf8 = is_locale_utf8();
r = parse_env_file("/etc/vconsole.conf", NEWLINE,
"KEYMAP", &vc_keymap,
"KEYMAP_TOGGLE", &vc_keymap_toggle,
"FONT", &vc_font,
"FONT_MAP", &vc_font_map,
"FONT_UNIMAP", &vc_font_unimap,
NULL);
if (r < 0 && r != -ENOENT)
log_warning("Failed to read /etc/vconsole.conf: %s", strerror(-r));
/* Let the kernel command line override /etc/vconsole.conf */
if (detect_container(NULL) <= 0) {
r = parse_env_file("/proc/cmdline", WHITESPACE,
"vconsole.keymap", &vc_keymap,
"vconsole.keymap.toggle", &vc_keymap_toggle,
"vconsole.font", &vc_font,
"vconsole.font.map", &vc_font_map,
"vconsole.font.unimap", &vc_font_unimap,
NULL);
if (r < 0 && r != -ENOENT)
log_warning("Failed to read /proc/cmdline: %s", strerror(-r));
}
if (utf8)
enable_utf8(fd);
else
disable_utf8(fd);
r = EXIT_FAILURE;
if (keymap_load(vc, vc_keymap, vc_keymap_toggle, utf8, &keymap_pid) >= 0 &&
font_load(vc, vc_font, vc_font_map, vc_font_unimap, &font_pid) >= 0)
r = EXIT_SUCCESS;
finish:
if (keymap_pid > 0)
wait_for_terminate_and_warn(KBD_LOADKEYS, keymap_pid);
if (font_pid > 0) {
wait_for_terminate_and_warn(KBD_SETFONT, font_pid);
if (font_copy)
font_copy_to_all_vcs(fd);
}
free(vc_keymap);
free(vc_font);
free(vc_font_map);
free(vc_font_unimap);
safe_close(fd);
return r;
}
int status_vprintf(const char *status, ShowStatusFlags flags, const char *format, va_list ap) {
static const char status_indent[] = " "; /* "[" STATUS "] " */
_cleanup_free_ char *s = NULL;
_cleanup_close_ int fd = -1;
struct iovec iovec[7] = {};
int n = 0;
static bool prev_ephemeral;
assert(format);
/* This is independent of logging, as status messages are
* optional and go exclusively to the console. */
if (vasprintf(&s, format, ap) < 0)
return log_oom();
/* Before you ask: yes, on purpose we open/close the console for each status line we write individually. This
* is a good strategy to avoid PID 1 getting killed by the kernel's SAK concept (it doesn't fix this entirely,
* but minimizes the time window the kernel might end up killing PID 1 due to SAK). It also makes things easier
* for us so that we don't have to recover from hangups and suchlike triggered on the console. */
fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0)
return fd;
if (FLAGS_SET(flags, SHOW_STATUS_ELLIPSIZE)) {
char *e;
size_t emax, sl;
int c;
c = fd_columns(fd);
if (c <= 0)
c = 80;
sl = status ? sizeof(status_indent)-1 : 0;
emax = c - sl - 1;
if (emax < 3)
emax = 3;
e = ellipsize(s, emax, 50);
if (e)
free_and_replace(s, e);
}
if (prev_ephemeral)
iovec[n++] = IOVEC_MAKE_STRING(ANSI_REVERSE_LINEFEED "\r" ANSI_ERASE_TO_END_OF_LINE);
if (status) {
if (!isempty(status)) {
iovec[n++] = IOVEC_MAKE_STRING("[");
iovec[n++] = IOVEC_MAKE_STRING(status);
iovec[n++] = IOVEC_MAKE_STRING("] ");
} else
iovec[n++] = IOVEC_MAKE_STRING(status_indent);
}
iovec[n++] = IOVEC_MAKE_STRING(s);
iovec[n++] = IOVEC_MAKE_STRING("\n");
if (prev_ephemeral && !FLAGS_SET(flags, SHOW_STATUS_EPHEMERAL))
iovec[n++] = IOVEC_MAKE_STRING(ANSI_ERASE_TO_END_OF_LINE);
prev_ephemeral = FLAGS_SET(flags, SHOW_STATUS_EPHEMERAL) ;
if (writev(fd, iovec, n) < 0)
return -errno;
return 0;
}
int acquire_terminal(
const char *name,
bool fail,
bool force,
bool ignore_tiocstty_eperm,
usec_t timeout) {
int fd = -1, notify = -1, r = 0, wd = -1;
usec_t ts = 0;
assert(name);
/* We use inotify to be notified when the tty is closed. We
* create the watch before checking if we can actually acquire
* it, so that we don't lose any event.
*
* Note: strictly speaking this actually watches for the
* device being closed, it does *not* really watch whether a
* tty loses its controlling process. However, unless some
* rogue process uses TIOCNOTTY on /dev/tty *after* closing
* its tty otherwise this will not become a problem. As long
* as the administrator makes sure not configure any service
* on the same tty as an untrusted user this should not be a
* problem. (Which he probably should not do anyway.) */
if (timeout != USEC_INFINITY)
ts = now(CLOCK_MONOTONIC);
if (!fail && !force) {
notify = inotify_init1(IN_CLOEXEC | (timeout != USEC_INFINITY ? IN_NONBLOCK : 0));
if (notify < 0) {
r = -errno;
goto fail;
}
wd = inotify_add_watch(notify, name, IN_CLOSE);
if (wd < 0) {
r = -errno;
goto fail;
}
}
for (;;) {
struct sigaction sa_old, sa_new = {
.sa_handler = SIG_IGN,
.sa_flags = SA_RESTART,
};
if (notify >= 0) {
r = flush_fd(notify);
if (r < 0)
goto fail;
}
/* We pass here O_NOCTTY only so that we can check the return
* value TIOCSCTTY and have a reliable way to figure out if we
* successfully became the controlling process of the tty */
fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
if (fd < 0)
return fd;
/* Temporarily ignore SIGHUP, so that we don't get SIGHUP'ed
* if we already own the tty. */
assert_se(sigaction(SIGHUP, &sa_new, &sa_old) == 0);
/* First, try to get the tty */
if (ioctl(fd, TIOCSCTTY, force) < 0)
r = -errno;
assert_se(sigaction(SIGHUP, &sa_old, NULL) == 0);
/* Sometimes it makes sense to ignore TIOCSCTTY
* returning EPERM, i.e. when very likely we already
* are have this controlling terminal. */
if (r < 0 && r == -EPERM && ignore_tiocstty_eperm)
r = 0;
if (r < 0 && (force || fail || r != -EPERM))
goto fail;
if (r >= 0)
break;
assert(!fail);
assert(!force);
assert(notify >= 0);
for (;;) {
union inotify_event_buffer buffer;
struct inotify_event *e;
ssize_t l;
if (timeout != USEC_INFINITY) {
usec_t n;
n = now(CLOCK_MONOTONIC);
if (ts + timeout < n) {
r = -ETIMEDOUT;
goto fail;
}
r = fd_wait_for_event(fd, POLLIN, ts + timeout - n);
if (r < 0)
goto fail;
if (r == 0) {
r = -ETIMEDOUT;
goto fail;
}
}
l = read(notify, &buffer, sizeof(buffer));
if (l < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
r = -errno;
goto fail;
}
FOREACH_INOTIFY_EVENT(e, buffer, l) {
if (e->wd != wd || !(e->mask & IN_CLOSE)) {
r = -EIO;
goto fail;
}
}
break;
}
/* We close the tty fd here since if the old session
* ended our handle will be dead. It's important that
* we do this after sleeping, so that we don't enter
* an endless loop. */
fd = safe_close(fd);
}
safe_close(notify);
r = reset_terminal_fd(fd, true);
if (r < 0)
log_warning_errno(r, "Failed to reset terminal: %m");
return fd;
fail:
safe_close(fd);
safe_close(notify);
return r;
}
ErrorCode ProcessSpawner::run(std::function<bool()> preExecAction) {
if (_pid != 0 || _executablePath.empty())
return kErrorInvalidArgument;
//
// If we have redirection, prepare pipes and handles.
//
int fds[3][2] = {{-1, -1}, {-1, -1}, {-1, -1}};
int term[2] = {-1, -1};
bool startRedirectThread = false;
for (size_t n = 0; n < 3; n++) {
switch (_descriptors[n].mode) {
case kRedirectConsole:
// do nothing
break;
case kRedirectNull:
if (n == 0) {
fds[n][RD] = ::open("/dev/null", O_RDONLY);
} else {
fds[n][WR] = ::open("/dev/null", O_WRONLY);
}
break;
case kRedirectFile:
if (n == 0) {
fds[n][RD] = ::open(_descriptors[n].path.c_str(), O_RDONLY);
} else {
fds[n][WR] = ::open(_descriptors[n].path.c_str(), O_RDWR);
if (fds[n][WR] < 0) {
fds[n][WR] =
::open(_descriptors[n].path.c_str(), O_CREAT | O_RDWR, 0600);
}
}
break;
case kRedirectBuffer:
_outputBuffer.clear();
// fall-through
case kRedirectDelegate:
startRedirectThread = true;
if (term[0] == -1) {
if (!open_terminal(term)) {
return Platform::TranslateError();
}
}
fds[n][RD] = term[RD];
fds[n][WR] = term[WR];
break;
}
}
_pid = ::fork();
if (_pid < 0) {
close_terminal(term);
return kErrorNoMemory;
}
if (_pid == 0) {
if (::setgid(::getgid()) == 0) {
::setsid();
for (size_t n = 0; n < 3; n++) {
switch (_descriptors[n].mode) {
case kRedirectConsole:
// do nothing
break;
case kRedirectDelegate:
//
// We are using the same virtual terminal for all delegate
// redirections, so dup2() only, do not close. We will close when all
// FDs have been dup2()'d.
//
::dup2(fds[n][WR], n);
break;
default:
if (n == 0) {
if (fds[n][WR] != -1) {
::close(fds[n][WR]);
}
::dup2(fds[n][RD], n);
::close(fds[n][RD]);
} else {
if (fds[n][RD] != -1) {
::close(fds[n][RD]);
}
::dup2(fds[n][WR], n);
::close(fds[n][WR]);
}
break;
}
}
close_terminal(term);
if (!_workingDirectory.empty()) {
::chdir(_workingDirectory.c_str());
}
std::vector<char *> args;
args.push_back(const_cast<char *>(_executablePath.c_str()));
for (auto const &e : _arguments)
args.push_back(const_cast<char *>(e.c_str()));
args.push_back(nullptr);
std::vector<char *> environment;
for (auto const &env : _environment)
environment.push_back(const_cast<char *>(
(new std::string(env.first + '=' + env.second))->c_str()));
environment.push_back(nullptr);
if (!preExecAction())
return kErrorUnknown;
if (::execve(_executablePath.c_str(), &args[0], &environment[0]) < 0) {
DS2LOG(Error, "cannot spawn executable %s, error=%s",
_executablePath.c_str(), strerror(errno));
}
}
::_exit(127);
}
::close(term[WR]);
for (size_t n = 0; n < 3; n++) {
switch (_descriptors[n].mode) {
case kRedirectConsole:
// do nothing
break;
case kRedirectDelegate:
_descriptors[n].fd = term[RD];
break;
default:
if (n == 0) {
if (fds[n][RD] != -1) {
::close(fds[n][RD]);
_descriptors[n].fd = fds[n][WR];
}
} else {
if (fds[n][WR] != -1) {
::close(fds[n][WR]);
_descriptors[n].fd = fds[n][RD];
}
}
break;
}
}
if (startRedirectThread) {
_delegateThread = std::thread(&ProcessSpawner::redirectionThread, this);
}
return kSuccess;
}
/* Check if MAGIC is valid and print the Multiboot information structure
pointed by ADDR. */
void
entry (unsigned long magic, unsigned long addr)
{
multiboot_info_t *mbi;
/* Clear the screen. */
clear();
uint32_t filestart;
/* Am I booted by a Multiboot-compliant boot loader? */
if (magic != MULTIBOOT_BOOTLOADER_MAGIC)
{
printf ("Invalid magic number: 0x%#x\n", (unsigned) magic);
return;
}
/* Set MBI to the address of the Multiboot information structure. */
mbi = (multiboot_info_t *) addr;
/* Print out the flags. */
printf ("flags = 0x%#x\n", (unsigned) mbi->flags);
/* Are mem_* valid? */
if (CHECK_FLAG (mbi->flags, 0))
printf ("mem_lower = %uKB, mem_upper = %uKB\n",
(unsigned) mbi->mem_lower, (unsigned) mbi->mem_upper);
/* Is boot_device valid? */
if (CHECK_FLAG (mbi->flags, 1))
printf ("boot_device = 0x%#x\n", (unsigned) mbi->boot_device);
/* Is the command line passed? */
if (CHECK_FLAG (mbi->flags, 2))
printf ("cmdline = %s\n", (char *) mbi->cmdline);
if (CHECK_FLAG (mbi->flags, 3)) {
int mod_count = 0;
int i;
module_t* mod = (module_t*)mbi->mods_addr;
while(mod_count < mbi->mods_count) {
printf("Module %d loaded at address: 0x%#x\n", mod_count, (unsigned int)mod->mod_start);
filestart = mod->mod_start;
printf("Module %d ends at address: 0x%#x\n", mod_count, (unsigned int)mod->mod_end);
printf("First few bytes of module:\n");
for(i = 0; i<16; i++) {
printf("0x%x ", *((char*)(mod->mod_start+i)));
}
printf("\n");
mod_count++;
}
}
/* Bits 4 and 5 are mutually exclusive! */
if (CHECK_FLAG (mbi->flags, 4) && CHECK_FLAG (mbi->flags, 5))
{
printf ("Both bits 4 and 5 are set.\n");
return;
}
/* Is the section header table of ELF valid? */
if (CHECK_FLAG (mbi->flags, 5))
{
elf_section_header_table_t *elf_sec = &(mbi->elf_sec);
printf ("elf_sec: num = %u, size = 0x%#x,"
" addr = 0x%#x, shndx = 0x%#x\n",
(unsigned) elf_sec->num, (unsigned) elf_sec->size,
(unsigned) elf_sec->addr, (unsigned) elf_sec->shndx);
}
/* Are mmap_* valid? */
if (CHECK_FLAG (mbi->flags, 6))
{
memory_map_t *mmap;
printf ("mmap_addr = 0x%#x, mmap_length = 0x%x\n",
(unsigned) mbi->mmap_addr, (unsigned) mbi->mmap_length);
for (mmap = (memory_map_t *) mbi->mmap_addr;
(unsigned long) mmap < mbi->mmap_addr + mbi->mmap_length;
mmap = (memory_map_t *) ((unsigned long) mmap
+ mmap->size + sizeof (mmap->size)))
printf (" size = 0x%x, base_addr = 0x%#x%#x\n"
" type = 0x%x, length = 0x%#x%#x\n",
(unsigned) mmap->size,
(unsigned) mmap->base_addr_high,
(unsigned) mmap->base_addr_low,
(unsigned) mmap->type,
(unsigned) mmap->length_high,
(unsigned) mmap->length_low);
}
/* Construct an LDT entry in the GDT */
{
seg_desc_t the_ldt_desc;
the_ldt_desc.granularity = 0;
the_ldt_desc.opsize = 1;
the_ldt_desc.reserved = 0;
the_ldt_desc.avail = 0;
the_ldt_desc.present = 1;
the_ldt_desc.dpl = 0x0;
the_ldt_desc.sys = 0;
the_ldt_desc.type = 0x2;
SET_LDT_PARAMS(the_ldt_desc, &ldt, ldt_size);
ldt_desc_ptr = the_ldt_desc;
lldt(KERNEL_LDT);
}
/* Construct a TSS entry in the GDT */
{
seg_desc_t the_tss_desc;
the_tss_desc.granularity = 0;
the_tss_desc.opsize = 0;
the_tss_desc.reserved = 0;
the_tss_desc.avail = 0;
the_tss_desc.seg_lim_19_16 = TSS_SIZE & 0x000F0000;
the_tss_desc.present = 1;
the_tss_desc.dpl = 0x0;
the_tss_desc.sys = 0;
the_tss_desc.type = 0x9;
the_tss_desc.seg_lim_15_00 = TSS_SIZE & 0x0000FFFF;
SET_TSS_PARAMS(the_tss_desc, &tss, tss_size);
tss_desc_ptr = the_tss_desc;
tss.ldt_segment_selector = KERNEL_LDT;
tss.ss0 = KERNEL_DS;
tss.esp0 = 0x800000;
ltr(KERNEL_TSS);
}
//Initialization of IDE
{
printf("Initilization of Idt table...");
set_trap_gate(0,divide_error);
set_trap_gate(1,debug);
set_intr_gate(2,nmi);
set_system_intr_gate(3,int3);
set_system_gate(4,overflow);
set_system_gate(5,bounds);
set_trap_gate(6,invalid_op);
set_trap_gate(7,device_not_available);
set_task_gate(8,31);
set_trap_gate(9,coprocessor_segment_overrun);
set_trap_gate(10,invalid_TSS);
set_trap_gate(11,segment_not_present);
set_trap_gate(12,stack_segment);
set_trap_gate(13,general_protection);
set_trap_gate(14,page_fault);//intr
set_trap_gate(16,coprocessor_error);
set_trap_gate(17,alignment_check);
set_trap_gate(18,machine_check);
set_trap_gate(19,simd_coprocessor_error);
set_system_gate(128,system_call);
set_intr_gate(32,irq0); //intr
set_intr_gate(33,irq1); //intr
set_intr_gate(34,0); //intr
set_intr_gate(40,irq8); //intr
//set_intr_gate(44,irq12); //intr
lidt(idt_desc_ptr);
printf("ok!\n");
}
// Init the PIC
i8259_init();
//Enable interrupts
enable_irq(1);
enable_irq(2);
open_rtc();
enable_irq(8);
enable_irq(12);
uint8_t file =0x00;
//Enable paging
printf("Enabling paging...\n");
paging();
printf("ok!\n");
//Restore interrupts
sti();
//Mounting file system
printf("Mounting filesystem...\n");
open_terminal(&file);
setstart(filestart);
printf("ok!\n");
//clear();
//Executing first program shell
uint8_t cmd[10]={"shell "};
#if debug_by_showing_dentries
test_dentries();
while(1);
#endif
test_system_call((int32_t)cmd, NULL, 0, 2);
asm volatile(".1: hlt; jmp .1;");
}
void server_forward_console(
Server *s,
int priority,
const char *identifier,
const char *message,
const struct ucred *ucred) {
struct iovec iovec[5];
struct timespec ts;
char tbuf[sizeof("[] ")-1 + DECIMAL_STR_MAX(ts.tv_sec) + DECIMAL_STR_MAX(ts.tv_nsec)-3 + 1];
char header_pid[sizeof("[]: ")-1 + DECIMAL_STR_MAX(pid_t)];
int n = 0, fd;
_cleanup_free_ char *ident_buf = NULL;
const char *tty;
assert(s);
assert(message);
if (LOG_PRI(priority) > s->max_level_console)
return;
/* First: timestamp */
if (prefix_timestamp()) {
assert_se(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
xsprintf(tbuf, "[%5"PRI_TIME".%06ld] ",
ts.tv_sec,
ts.tv_nsec / 1000);
IOVEC_SET_STRING(iovec[n++], tbuf);
}
/* Second: identifier and PID */
if (ucred) {
if (!identifier) {
get_process_comm(ucred->pid, &ident_buf);
identifier = ident_buf;
}
xsprintf(header_pid, "["PID_FMT"]: ", ucred->pid);
if (identifier)
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], header_pid);
} else if (identifier) {
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], ": ");
}
/* Fourth: message */
IOVEC_SET_STRING(iovec[n++], message);
IOVEC_SET_STRING(iovec[n++], "\n");
tty = s->tty_path ? s->tty_path : "/dev/console";
fd = open_terminal(tty, O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0) {
log_debug_errno(errno, "Failed to open %s for logging: %m", tty);
return;
}
if (writev(fd, iovec, n) < 0)
log_debug_errno(errno, "Failed to write to %s for logging: %m", tty);
safe_close(fd);
}
void server_forward_console(
Server *s,
int priority,
const char *identifier,
const char *message,
const struct ucred *ucred) {
struct iovec iovec[5];
struct timespec ts;
char tbuf[sizeof("[] ")-1 + DECIMAL_STR_MAX(ts.tv_sec) + DECIMAL_STR_MAX(ts.tv_nsec)-3 + 1];
char header_pid[sizeof("[]: ")-1 + DECIMAL_STR_MAX(pid_t)];
int n = 0, fd;
_cleanup_free_ char *ident_buf = NULL;
const char *tty;
assert(s);
assert(message);
if (LOG_PRI(priority) > s->max_level_console)
return;
/* First: timestamp */
if (prefix_timestamp()) {
assert_se(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
xsprintf(tbuf, "[%5"PRI_TIME".%06ld] ",
ts.tv_sec,
ts.tv_nsec / 1000);
IOVEC_SET_STRING(iovec[n++], tbuf);
}
/* Second: identifier and PID */
if (ucred) {
if (!identifier) {
get_process_comm(ucred->pid, &ident_buf);
identifier = ident_buf;
}
xsprintf(header_pid, "["PID_FMT"]: ", ucred->pid);
if (identifier)
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], header_pid);
} else if (identifier) {
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], ": ");
}
/* Fourth: message */
IOVEC_SET_STRING(iovec[n++], message);
IOVEC_SET_STRING(iovec[n++], "\n");
tty = s->tty_path ? s->tty_path : "/dev/console";
/* Before you ask: yes, on purpose we open/close the console for each log line we write individually. This is a
* good strategy to avoid journald getting killed by the kernel's SAK concept (it doesn't fix this entirely,
* but minimizes the time window the kernel might end up killing journald due to SAK). It also makes things
* easier for us so that we don't have to recover from hangups and suchlike triggered on the console. */
fd = open_terminal(tty, O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0) {
log_debug_errno(fd, "Failed to open %s for logging: %m", tty);
return;
}
if (writev(fd, iovec, n) < 0)
log_debug_errno(errno, "Failed to write to %s for logging: %m", tty);
safe_close(fd);
}
void server_forward_console(
Server *s,
int priority,
const char *identifier,
const char *message,
struct ucred *ucred) {
struct iovec iovec[5];
char header_pid[16];
struct timespec ts;
char tbuf[4 + DECIMAL_STR_MAX(ts.tv_sec) + DECIMAL_STR_MAX(ts.tv_nsec)-3 + 1];
int n = 0, fd;
char *ident_buf = NULL;
const char *tty;
assert(s);
assert(message);
if (LOG_PRI(priority) > s->max_level_console)
return;
/* First: timestamp */
if (prefix_timestamp()) {
assert_se(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
snprintf(tbuf, sizeof(tbuf), "[%5llu.%06llu] ",
(unsigned long long) ts.tv_sec,
(unsigned long long) ts.tv_nsec / 1000);
IOVEC_SET_STRING(iovec[n++], tbuf);
}
/* Second: identifier and PID */
if (ucred) {
if (!identifier) {
get_process_comm(ucred->pid, &ident_buf);
identifier = ident_buf;
}
snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
char_array_0(header_pid);
if (identifier)
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], header_pid);
} else if (identifier) {
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], ": ");
}
/* Fourth: message */
IOVEC_SET_STRING(iovec[n++], message);
IOVEC_SET_STRING(iovec[n++], "\n");
tty = s->tty_path ? s->tty_path : "/dev/console";
fd = open_terminal(tty, O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0) {
log_debug("Failed to open %s for logging: %s", tty, strerror(errno));
goto finish;
}
if (writev(fd, iovec, n) < 0)
log_debug("Failed to write to %s for logging: %s", tty, strerror(errno));
safe_close(fd);
finish:
free(ident_buf);
}
int vt_disallocate(const char *name) {
int fd, r;
unsigned u;
/* Deallocate the VT if possible. If not possible
* (i.e. because it is the active one), at least clear it
* entirely (including the scrollback buffer) */
if (!startswith(name, "/dev/"))
return -EINVAL;
if (!tty_is_vc(name)) {
/* So this is not a VT. I guess we cannot deallocate
* it then. But let's at least clear the screen */
fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
if (fd < 0)
return fd;
loop_write(fd,
"\033[r" /* clear scrolling region */
"\033[H" /* move home */
"\033[2J", /* clear screen */
10, false);
safe_close(fd);
return 0;
}
if (!startswith(name, "/dev/tty"))
return -EINVAL;
r = safe_atou(name+8, &u);
if (r < 0)
return r;
if (u <= 0)
return -EINVAL;
/* Try to deallocate */
fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return fd;
r = ioctl(fd, VT_DISALLOCATE, u);
safe_close(fd);
if (r >= 0)
return 0;
if (errno != EBUSY)
return -errno;
/* Couldn't deallocate, so let's clear it fully with
* scrollback */
fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
if (fd < 0)
return fd;
loop_write(fd,
"\033[r" /* clear scrolling region */
"\033[H" /* move home */
"\033[3J", /* clear screen including scrollback, requires Linux 2.6.40 */
10, false);
safe_close(fd);
return 0;
}
//*******************************************************************
// customEvent PRIVATE inherited
//*******************************************************************
void QBtWorkspace::customEvent( QEvent* const in_event )
{
const QBtEvent* const event = dynamic_cast< QBtEvent* >( in_event );
const int type = static_cast<int>( event->type() );
switch( type ) {
case QBtEvent::SWITCH_TAB_REQUEST:
switch_panels();
break;
case QBtEvent::F5_KEY:
copy();
break;
case QBtEvent::F9_KEY:
pack();
break;
case QBtEvent::COMPARE_FILES:
compare_files();
break;
case QBtEvent::COMPARE_DIRS:
compare_dirs();
break;
case QBtEvent::SYNC_DIRS:
sync_dirs();
break;
case QBtEvent::JOIN_FILES:
join_files();
break;
case QBtEvent::DIR_TREE:
dir_tree();
break;
case QBtEvent::MD5_CREATE:
md5_create();
break;
case QBtEvent::MD5_CHECK:
md5_check();
break;
case QBtEvent::DATE_TIME:
date_time();
break;
case QBtEvent::DROP_FILES:
drop_files( event->data(0).toMap() );
break;
case QBtEvent::OPEN_OPOSITE:
open_oposite();
break;
case QBtEvent::OPEN_DIR:
open_dir( event->data(0).toString() );
break;
case QBtEvent::OPEN_SHELL:
open_shell();
break;
case QBtEvent::OPEN_TERMINAL:
open_terminal();
break;
case QBtEvent::OPEN_EDITOR:
open_editor();
break;
case QBtEvent::EXECUTE:
open( event->data(0).toString(), QStringList(), QString() );
break;
}
}
int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) {
static const char status_indent[] = " "; /* "[" STATUS "] " */
_cleanup_free_ char *s = NULL;
_cleanup_close_ int fd = -1;
struct iovec iovec[6] = {};
int n = 0;
static bool prev_ephemeral;
assert(format);
/* This is independent of logging, as status messages are
* optional and go exclusively to the console. */
if (vasprintf(&s, format, ap) < 0)
return log_oom();
fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0)
return fd;
if (ellipse) {
char *e;
size_t emax, sl;
int c;
c = fd_columns(fd);
if (c <= 0)
c = 80;
sl = status ? sizeof(status_indent)-1 : 0;
emax = c - sl - 1;
if (emax < 3)
emax = 3;
e = ellipsize(s, emax, 50);
if (e) {
free(s);
s = e;
}
}
if (prev_ephemeral)
IOVEC_SET_STRING(iovec[n++], "\r" ANSI_ERASE_TO_END_OF_LINE);
prev_ephemeral = ephemeral;
if (status) {
if (!isempty(status)) {
IOVEC_SET_STRING(iovec[n++], "[");
IOVEC_SET_STRING(iovec[n++], status);
IOVEC_SET_STRING(iovec[n++], "] ");
} else
IOVEC_SET_STRING(iovec[n++], status_indent);
}
IOVEC_SET_STRING(iovec[n++], s);
if (!ephemeral)
IOVEC_SET_STRING(iovec[n++], "\n");
if (writev(fd, iovec, n) < 0)
return -errno;
return 0;
}
int main(int argc, char **argv)
{
int status;
int nrx_fd;
int host_rfd;
int host_wfd;
int use_stdin = 0;
char * ser_dev = NULL;
int port = 12345;
char * filename = default_filename;
void * handle = NULL;
int host_flash = 0;
int input_baudrate = 115200;
speed_t baudrate = B115200;
int opt;
struct ifreq ifr;
struct nanoioctl nr;
while((opt = getopt(argc, argv, "d:s:p:f:b:i")) != -1) {
switch(opt) {
case 'b':
input_baudrate = atoi(optarg);
switch(input_baudrate) {
case 9600: baudrate = B9600; break;
case 19200: baudrate = B19200; break;
case 38400: baudrate = B38400; break;
case 57600: baudrate = B57600; break;
case 115200: baudrate = B115200; break;
default: usage();
}
break;
case 'd':
debug = atoi(optarg);
break;
case 'f':
filename = optarg;
break;
case 'i':
use_stdin = 1;
break;
case 'p':
port = atoi(optarg);
break;
case 's':
ser_dev = optarg;
break;
default:
break;
}
}
if(optind == argc)
usage();
strcpy(ifr.ifr_name, argv[optind]);
ifr.ifr_data = (char *)&nr;
memset(&nr,0,sizeof(nr));
nr.magic = NR_MAGIC;
APP_INFO("Nanoradio network interface: %s\n", ifr.ifr_name);
APP_INFO("Saving persistent MIB data of type HOST to: %s\n", filename);
if(use_stdin) {
APP_INFO("Using stdin/stdout as client interface\n");
host_wfd = host_rfd = open_terminal();
redirect_stdout("/tmp/hic_proxy.log");
} else if(ser_dev)
{
APP_INFO("Using %s (baudrate = %d) as serial client interface\n", ser_dev,input_baudrate);
host_wfd = host_rfd = open_serial(ser_dev, baudrate);
}
else
{
APP_INFO("Using ethernet as client interface\n");
host_wfd = host_rfd = open_socket(port);
}
nrx_fd = socket(AF_INET, SOCK_DGRAM, 0);
if(nrx_fd < 0) err(1, "socket");
for(;;) {
status = poll_host(host_rfd, &ifr);
if(status) {
if((nr.data[TYPE_INDEX] == HIC_MESSAGE_TYPE_FLASH_PRG))
{
APP_DEBUG("flash cmd recieved\n");
//examine flash cmd
handle = flash_cmd(&ifr,handle,filename);
if(handle)
{
//send local host flash cmd reply
host_write(host_wfd, nr.data, nr.length);
}
else
{
//forward to target
nrx_write(nrx_fd, &ifr);
}
}
else
{
//forward to target
nrx_write(nrx_fd, &ifr);
}
}
status = poll_target(nrx_fd, &ifr);
if(status)
host_write(host_wfd, nr.data, nr.length);
usleep(5000);
}
if(!use_stdin) {
close(host_rfd);
}
close(nrx_fd);
}