/*
* Image_exists
*
* Returns -1 if don't know, otherwise 0 (no) or 1 (yes).
*/
int toi_bio_image_exists(int quiet)
{
int result;
char *msg = NULL;
toi_message(TOI_IO, TOI_VERBOSE, 0, "toi_bio_image_exists.");
if (!resume_dev_t) {
if (!quiet)
printk(KERN_INFO "Not even trying to read header "
"because resume_dev_t is not set.\n");
return -1;
}
if (open_resume_dev_t(0, quiet))
return -1;
result = toi_check_for_signature();
clear_toi_state(TOI_RESUMED_BEFORE);
if (toi_sig_data->resumed_before)
set_toi_state(TOI_RESUMED_BEFORE);
if (quiet || result == -ENOMEM)
return result;
if (result == -1)
msg = "TuxOnIce: Unable to find a signature."
" Could you have moved a swap file?\n";
else if (!result)
msg = "TuxOnIce: No image found.\n";
else if (result == 1)
msg = "TuxOnIce: Image found.\n";
else if (result == 2)
msg = "TuxOnIce: uswsusp or swsusp image found.\n";
else if (result == 3)
msg = "TuxOnIce: Old implementation's signature found.\n";
printk(KERN_INFO "%s", msg);
return result;
}
void toi_early_boot_message(int message_detail, int default_answer,
char *warning_reason, ...)
{
#if defined(CONFIG_VT) || defined(CONFIG_SERIAL_CONSOLE)
unsigned long orig_state = get_toi_state(), continue_req = 0;
unsigned long orig_loglevel = console_loglevel;
int can_ask = 1;
#else
int can_ask = 0;
#endif
va_list args;
int printed_len;
if (!toi_wait) {
set_toi_state(TOI_CONTINUE_REQ);
can_ask = 0;
}
if (warning_reason) {
va_start(args, warning_reason);
printed_len = vsnprintf(local_printf_buf,
sizeof(local_printf_buf),
warning_reason,
args);
va_end(args);
}
if (!test_toi_state(TOI_BOOT_TIME)) {
printk("TuxOnIce: %s\n", local_printf_buf);
return;
}
if (!can_ask) {
continue_req = !!default_answer;
goto post_ask;
}
#if defined(CONFIG_VT) || defined(CONFIG_SERIAL_CONSOLE)
console_loglevel = 7;
say("=== TuxOnIce ===\n\n");
if (warning_reason) {
say("BIG FAT WARNING!! %s\n\n", local_printf_buf);
switch (message_detail) {
case 0:
say("If you continue booting, note that any image WILL"
"NOT BE REMOVED.\nTuxOnIce is unable to do so "
"because the appropriate modules aren't\n"
"loaded. You should manually remove the image "
"to avoid any\npossibility of corrupting your "
"filesystem(s) later.\n");
break;
case 1:
say("If you want to use the current TuxOnIce image, "
"reboot and try\nagain with the same kernel "
"that you hibernated from. If you want\n"
"to forget that image, continue and the image "
"will be erased.\n");
break;
}
say("Press SPACE to reboot or C to continue booting with "
"this kernel\n\n");
if (toi_wait > 0)
say("Default action if you don't select one in %d "
"seconds is: %s.\n",
toi_wait,
default_answer == TOI_CONTINUE_REQ ?
"continue booting" : "reboot");
} else {
say("BIG FAT WARNING!!\n\n"
"You have tried to resume from this image before.\n"
"If it failed once, it may well fail again.\n"
"Would you like to remove the image and boot "
"normally?\nThis will be equivalent to entering "
"noresume on the\nkernel command line.\n\n"
"Press SPACE to remove the image or C to continue "
"resuming.\n\n");
if (toi_wait > 0)
say("Default action if you don't select one in %d "
"seconds is: %s.\n", toi_wait,
!!default_answer ?
"continue resuming" : "remove the image");
}
console_loglevel = orig_loglevel;
set_toi_state(TOI_SANITY_CHECK_PROMPT);
clear_toi_state(TOI_CONTINUE_REQ);
if (toi_wait_for_keypress(toi_wait) == 0) /* We timed out */
continue_req = !!default_answer;
else
continue_req = test_toi_state(TOI_CONTINUE_REQ);
#endif /* CONFIG_VT or CONFIG_SERIAL_CONSOLE */
post_ask:
if ((warning_reason) && (!continue_req))
machine_restart(NULL);
restore_toi_state(orig_state);
if (continue_req)
set_toi_state(TOI_CONTINUE_REQ);
}