7025aeb16e
as redoing all the menus to have proper, or at least non-hallucinogenic, keyboard accelerators. This requires my recent update to libdialog to work properly and will probably also exhibit some other "interesting" behavior while the last few missing screen clears are found (which is why I'm not going to MFC immediately). At least now, however, sysinstall does not gratuitously redraw random screens at the drop of a hat and drive serial console installers out of their minds.
407 lines
9.1 KiB
C
407 lines
9.1 KiB
C
/*
|
|
* The new sysinstall program.
|
|
*
|
|
* This is probably the last program in the `sysinstall' line - the next
|
|
* generation being essentially a complete rewrite.
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
* Jordan Hubbard
|
|
*
|
|
* My contributions are in the public domain.
|
|
*
|
|
* Parts of this file are also blatently stolen from Poul-Henning Kamp's
|
|
* previous version of sysinstall, and as such fall under his "BEERWARE license"
|
|
* so buy him a beer if you like it! Buy him a beer for me, too!
|
|
* Heck, get him completely drunk and send me pictures! :-)
|
|
*/
|
|
|
|
#include "sysinstall.h"
|
|
#include <signal.h>
|
|
#include <termios.h>
|
|
#include <sys/reboot.h>
|
|
#include <machine/console.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/stat.h>
|
|
|
|
|
|
/* Where we stick our temporary expanded doc file */
|
|
#define DOC_TMP_DIR "/tmp/.doc"
|
|
#define DOC_TMP_FILE "/tmp/.doc/doc.tmp"
|
|
|
|
static pid_t ehs_pid;
|
|
|
|
/*
|
|
* Handle interrupt signals - this probably won't work in all cases
|
|
* due to our having bogotified the internal state of dialog or curses,
|
|
* but we'll give it a try.
|
|
*/
|
|
static void
|
|
handle_intr(int sig)
|
|
{
|
|
WINDOW *save = savescr();
|
|
|
|
if (!msgYesNo("Are you sure you want to abort the installation?"))
|
|
systemShutdown(-1);
|
|
else
|
|
restorescr(save);
|
|
}
|
|
|
|
/* Expand a file into a convenient location, nuking it each time */
|
|
static char *
|
|
expand(char *fname)
|
|
{
|
|
char *gunzip = RunningAsInit ? "/stand/gunzip" : "/usr/bin/gunzip";
|
|
|
|
if (!directory_exists(DOC_TMP_DIR)) {
|
|
Mkdir(DOC_TMP_DIR);
|
|
if (chown(DOC_TMP_DIR, 0, 0) < 0)
|
|
return NULL;
|
|
if (chmod(DOC_TMP_DIR, S_IRWXU) < 0)
|
|
return NULL;
|
|
}
|
|
else
|
|
unlink(DOC_TMP_FILE);
|
|
if (!file_readable(fname) || vsystem("%s < %s > %s", gunzip, fname, DOC_TMP_FILE))
|
|
return NULL;
|
|
return DOC_TMP_FILE;
|
|
}
|
|
|
|
/* Initialize system defaults */
|
|
void
|
|
systemInitialize(int argc, char **argv)
|
|
{
|
|
#ifdef __alpha__
|
|
int i;
|
|
#endif
|
|
|
|
signal(SIGINT, SIG_IGN);
|
|
globalsInit();
|
|
|
|
/* Are we running as init? */
|
|
if (getpid() == 1) {
|
|
int fd, type;
|
|
|
|
RunningAsInit = 1;
|
|
setsid();
|
|
close(0);
|
|
fd = open("/dev/ttyv0", O_RDWR);
|
|
if (fd == -1)
|
|
fd = open("/dev/console", O_RDWR); /* fallback */
|
|
else
|
|
OnVTY = TRUE;
|
|
/*
|
|
* To make _sure_ we're on a VTY and don't have /dev/console switched
|
|
* away to a serial port or something, attempt to set the cursor appearance.
|
|
*/
|
|
type = 0; /* normal */
|
|
if (OnVTY) {
|
|
int fd2;
|
|
|
|
if ((fd2 = open("/dev/console", O_RDWR)) != -1) {
|
|
if (ioctl(fd2, CONS_CURSORTYPE, &type) == -1) {
|
|
OnVTY = FALSE;
|
|
close(fd); close(fd2);
|
|
open("/dev/console", O_RDWR);
|
|
}
|
|
else
|
|
close(fd2);
|
|
}
|
|
}
|
|
close(1); dup(0);
|
|
close(2); dup(0);
|
|
printf("%s running as init on %s\n", argv[0], OnVTY ? "vty0" : "serial console");
|
|
ioctl(0, TIOCSCTTY, (char *)NULL);
|
|
setlogin("root");
|
|
setenv("PATH", "/stand:/bin:/sbin:/usr/sbin:/usr/bin:/mnt/bin:/mnt/sbin:/mnt/usr/sbin:/mnt/usr/bin:/usr/X11R6/bin", 1);
|
|
setbuf(stdin, 0);
|
|
setbuf(stderr, 0);
|
|
#ifdef __alpha__
|
|
i = 0;
|
|
sysctlbyname("machdep.unaligned_print", NULL, 0, &i, sizeof(i));
|
|
#endif
|
|
}
|
|
else {
|
|
char hname[256];
|
|
|
|
/* Initalize various things for a multi-user environment */
|
|
if (!gethostname(hname, sizeof hname))
|
|
variable_set2(VAR_HOSTNAME, hname, 0);
|
|
}
|
|
|
|
if (set_termcap() == -1) {
|
|
printf("Can't find terminal entry\n");
|
|
exit(-1);
|
|
}
|
|
|
|
/* XXX - libdialog has particularly bad return value checking */
|
|
init_dialog();
|
|
|
|
/* If we haven't crashed I guess dialog is running ! */
|
|
DialogActive = TRUE;
|
|
|
|
/* Make sure HOME is set for those utilities that need it */
|
|
if (!getenv("HOME"))
|
|
setenv("HOME", "/", 1);
|
|
signal(SIGINT, handle_intr);
|
|
(void)vsystem("rm -rf %s", DOC_TMP_DIR);
|
|
}
|
|
|
|
/* Close down and prepare to exit */
|
|
void
|
|
systemShutdown(int status)
|
|
{
|
|
/* If some media is open, close it down */
|
|
if (status >=0)
|
|
mediaClose();
|
|
|
|
/* write out any changes to rc.conf .. */
|
|
configRC_conf();
|
|
|
|
/* Shut down the dialog library */
|
|
if (DialogActive) {
|
|
end_dialog();
|
|
DialogActive = FALSE;
|
|
}
|
|
|
|
/* Shut down curses */
|
|
endwin();
|
|
|
|
/* If we have a temporary doc dir lying around, nuke it */
|
|
(void)vsystem("rm -rf %s", DOC_TMP_DIR);
|
|
|
|
/* REALLY exit! */
|
|
if (RunningAsInit) {
|
|
/* Put the console back */
|
|
ioctl(0, VT_ACTIVATE, 2);
|
|
#ifdef __alpha__
|
|
reboot(RB_HALT);
|
|
#else
|
|
reboot(0);
|
|
#endif
|
|
}
|
|
else
|
|
exit(status);
|
|
}
|
|
|
|
/* Run some general command */
|
|
int
|
|
systemExecute(char *command)
|
|
{
|
|
int status;
|
|
struct termios foo;
|
|
WINDOW *w = savescr();
|
|
|
|
dialog_clear();
|
|
dialog_update();
|
|
end_dialog();
|
|
DialogActive = FALSE;
|
|
if (tcgetattr(0, &foo) != -1) {
|
|
foo.c_cc[VERASE] = '\010';
|
|
tcsetattr(0, TCSANOW, &foo);
|
|
}
|
|
if (!Fake)
|
|
status = system(command);
|
|
else {
|
|
status = 0;
|
|
msgDebug("systemExecute: Faked execution of `%s'\n", command);
|
|
}
|
|
DialogActive = TRUE;
|
|
restorescr(w);
|
|
return status;
|
|
}
|
|
|
|
/* Display a help file in a filebox */
|
|
int
|
|
systemDisplayHelp(char *file)
|
|
{
|
|
char *fname = NULL;
|
|
char buf[FILENAME_MAX];
|
|
int ret = 0;
|
|
WINDOW *w = savescr();
|
|
|
|
fname = systemHelpFile(file, buf);
|
|
if (!fname) {
|
|
snprintf(buf, FILENAME_MAX, "The %s file is not provided on this particular floppy image.", file);
|
|
use_helpfile(NULL);
|
|
use_helpline(NULL);
|
|
dialog_mesgbox("Sorry!", buf, -1, -1);
|
|
ret = 1;
|
|
}
|
|
else {
|
|
use_helpfile(NULL);
|
|
use_helpline(NULL);
|
|
dialog_textbox(file, fname, LINES, COLS);
|
|
}
|
|
restorescr(w);
|
|
return ret;
|
|
}
|
|
|
|
char *
|
|
systemHelpFile(char *file, char *buf)
|
|
{
|
|
if (!file)
|
|
return NULL;
|
|
|
|
snprintf(buf, FILENAME_MAX, "/stand/help/%s.hlp.gz", file);
|
|
if (file_readable(buf))
|
|
return expand(buf);
|
|
snprintf(buf, FILENAME_MAX, "/stand/help/%s.TXT.gz", file);
|
|
if (file_readable(buf))
|
|
return expand(buf);
|
|
snprintf(buf, FILENAME_MAX, "/usr/src/release/sysinstall/help/%s.hlp", file);
|
|
if (file_readable(buf))
|
|
return buf;
|
|
snprintf(buf, FILENAME_MAX, "/usr/src/release/sysinstall/help/%s.TXT", file);
|
|
if (file_readable(buf))
|
|
return buf;
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
systemChangeTerminal(char *color, const u_char c_term[],
|
|
char *mono, const u_char m_term[])
|
|
{
|
|
if (OnVTY) {
|
|
int setupterm(char *color, int, int *);
|
|
|
|
if (ColorDisplay) {
|
|
setenv("TERM", color, 1);
|
|
setenv("TERMCAP", c_term, 1);
|
|
reset_shell_mode();
|
|
setterm(color);
|
|
cbreak(); noecho();
|
|
}
|
|
else {
|
|
setenv("TERM", mono, 1);
|
|
setenv("TERMCAP", m_term, 1);
|
|
reset_shell_mode();
|
|
setterm(mono);
|
|
cbreak(); noecho();
|
|
}
|
|
}
|
|
clear();
|
|
refresh();
|
|
dialog_clear();
|
|
}
|
|
|
|
int
|
|
vsystem(char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
int pstat;
|
|
pid_t pid;
|
|
int omask;
|
|
sig_t intsave, quitsave;
|
|
char *cmd;
|
|
int i;
|
|
|
|
cmd = (char *)alloca(FILENAME_MAX);
|
|
cmd[0] = '\0';
|
|
va_start(args, fmt);
|
|
vsnprintf(cmd, FILENAME_MAX, fmt, args);
|
|
va_end(args);
|
|
|
|
omask = sigblock(sigmask(SIGCHLD));
|
|
if (Fake) {
|
|
msgDebug("vsystem: Faked execution of `%s'\n", cmd);
|
|
return 0;
|
|
}
|
|
if (isDebug())
|
|
msgDebug("Executing command `%s'\n", cmd);
|
|
pid = fork();
|
|
if (pid == -1) {
|
|
(void)sigsetmask(omask);
|
|
i = 127;
|
|
}
|
|
else if (!pid) { /* Junior */
|
|
(void)sigsetmask(omask);
|
|
if (DebugFD != -1) {
|
|
dup2(DebugFD, 0);
|
|
dup2(DebugFD, 1);
|
|
dup2(DebugFD, 2);
|
|
}
|
|
else {
|
|
close(1); open("/dev/null", O_WRONLY);
|
|
dup2(1, 2);
|
|
}
|
|
if (!RunningAsInit)
|
|
execl("/bin/sh", "/bin/sh", "-c", cmd, (char *)NULL);
|
|
else
|
|
execl("/stand/sh", "/stand/sh", "-c", cmd, (char *)NULL);
|
|
exit(1);
|
|
}
|
|
else {
|
|
intsave = signal(SIGINT, SIG_IGN);
|
|
quitsave = signal(SIGQUIT, SIG_IGN);
|
|
pid = waitpid(pid, &pstat, 0);
|
|
(void)sigsetmask(omask);
|
|
(void)signal(SIGINT, intsave);
|
|
(void)signal(SIGQUIT, quitsave);
|
|
i = (pid == -1) ? -1 : WEXITSTATUS(pstat);
|
|
if (isDebug())
|
|
msgDebug("Command `%s' returns status of %d\n", cmd, i);
|
|
}
|
|
return i;
|
|
}
|
|
|
|
void
|
|
systemCreateHoloshell(void)
|
|
{
|
|
if (OnVTY && RunningAsInit) {
|
|
|
|
if (ehs_pid != 0) {
|
|
int pstat;
|
|
|
|
if (kill(ehs_pid, 0) == 0) {
|
|
|
|
if (msgYesNo("There seems to be an emergency holographic shell\n"
|
|
"already running on VTY 4.\n\n"
|
|
"Kill it and start a new one?"))
|
|
return;
|
|
|
|
/* try cleaning up as much as possible */
|
|
(void) kill(ehs_pid, SIGHUP);
|
|
sleep(1);
|
|
(void) kill(ehs_pid, SIGKILL);
|
|
}
|
|
|
|
/* avoid too many zombies */
|
|
(void) waitpid(ehs_pid, &pstat, WNOHANG);
|
|
}
|
|
|
|
if ((ehs_pid = fork()) == 0) {
|
|
int i, fd;
|
|
struct termios foo;
|
|
extern int login_tty(int);
|
|
|
|
ioctl(0, TIOCNOTTY, NULL);
|
|
for (i = getdtablesize(); i >= 0; --i)
|
|
close(i);
|
|
fd = open("/dev/ttyv3", O_RDWR);
|
|
ioctl(0, TIOCSCTTY, &fd);
|
|
dup2(0, 1);
|
|
dup2(0, 2);
|
|
DebugFD = 2;
|
|
if (login_tty(fd) == -1)
|
|
msgDebug("Doctor: I can't set the controlling terminal.\n");
|
|
signal(SIGTTOU, SIG_IGN);
|
|
if (tcgetattr(fd, &foo) != -1) {
|
|
foo.c_cc[VERASE] = '\010';
|
|
if (tcsetattr(fd, TCSANOW, &foo) == -1)
|
|
msgDebug("Doctor: I'm unable to set the erase character.\n");
|
|
}
|
|
else
|
|
msgDebug("Doctor: I'm unable to get the terminal attributes!\n");
|
|
execlp("sh", "-sh", 0);
|
|
msgDebug("Was unable to execute sh for Holographic shell!\n");
|
|
exit(1);
|
|
}
|
|
else {
|
|
msgNotify("Starting an emergency holographic shell on VTY4");
|
|
sleep(2);
|
|
}
|
|
}
|
|
}
|