source: MondoRescue/branches/stable/mondo/src/mondoarchive/mondoarchive.c@ 1326

/***************************************************************************
* $Id: mondoarchive.c 1326 2007-04-16 22:08:14Z bruno $
*/


/**
 * @file
 * The main file for mondoarchive.
 */

/************************* #include statements *************************/
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

#include "my-stuff.h"
#include "mondostructures.h"
#include "libmondo.h"
#include "mondo-cli-EXT.h"

#include "mondoarchive.h"
#include "mr_mem.h"
#include "mr_str.h"
#include "mr_msg.h"
#include "mr_file.h"
#include "mr_err.h"
#include "mr_conf.h"

// for CVS
//static char cvsid[] = "$Id: mondoarchive.c 1326 2007-04-16 22:08:14Z bruno $";

/************************* external variables *************************/
extern void set_signals(int);
extern int g_current_media_number;
extern void register_pid(pid_t, char *);
extern int g_currentY;
extern bool g_text_mode;
extern char *g_boot_mountpt;
extern bool g_remount_cdrom_at_end, g_remount_floppy_at_end;
extern char *g_tmpfs_mountpt;
extern char *g_erase_tmpdir_and_scratchdir;
extern char *g_cdrw_drive_is_here;
extern double g_kernel_version;
extern char *g_magicdev_command;
extern t_bkptype g_backup_media_type;
extern int g_loglevel;

static char *g_cdrom_drive_is_here = NULL;
static char *g_dvd_drive_is_here = NULL;

struct mr_ar_conf mr_conf;

/***************** global vars ******************/
bool g_skip_floppies;
long diffs;

/****************** subroutines used only here ******************/


/**
 * Print a "don't panic" message to the log and a message about the logfile to the screen.
 */
static void welcome_to_mondoarchive(void)
{
    mr_msg(0, "Mondo Archive v%s --- http://www.mondorescue.org", PACKAGE_VERSION);
    mr_msg(0, "running on %s architecture", get_architecture());
    mr_msg(0, "-----------------------------------------------------------");
    mr_msg(0, "NB: Mondo logs almost everything, so don't panic if you see");
    mr_msg(0, "some error messages.  Please read them carefully before you");
    mr_msg(0, "decide to break out in a cold sweat.    Despite (or perhaps");
    mr_msg(0, "because of) the wealth of messages. some users are inclined");
    mr_msg(0, "to stop reading this log. If Mondo stopped for some reason,");
    mr_msg(0, "chances are it's detailed here.  More than likely there's a");
    mr_msg(0, "message at the very end of this log that will tell you what");
    mr_msg(0, "is wrong. Please read it!                          -Devteam");
    mr_msg(0, "-----------------------------------------------------------");

    mr_msg(0, "Zero...");
    mr_msg(1, "One...");
    mr_msg(2, "Two...");
    mr_msg(3, "Three...");
    mr_msg(4, "Four...");
    mr_msg(5, "Five...");
    mr_msg(6, "Six...");
    mr_msg(7, "Seven...");
    mr_msg(8, "Eight...");
    printf("See %s for details of backup run.\n", MONDO_LOGFILE);
}

/**
 * Do whatever is necessary to insure a successful backup on the Linux distribution
 * of the day.
 */
static void distro_specific_kludges_at_start_of_mondoarchive(void)
{
    mr_msg(2, "Unmounting old ramdisks if necessary");
    stop_magicdev_if_necessary();   // for RH+Gnome users
    run_program_and_log_output
        ("umount `mount | grep shm | grep mondo | cut -d' ' -f3`", 2);
    unmount_supermounts_if_necessary(); // for Mandrake users whose CD-ROMs are supermounted
    mount_boot_if_necessary();  // for Gentoo users with non-mounted /boot partitions
    clean_up_KDE_desktop_if_necessary();    // delete various misc ~/.* files that get in the way
}


/**
 * Undo whatever was done by distro_specific_kludges_at_start_of_mondoarchive().
 */
static void distro_specific_kludges_at_end_of_mondoarchive(void)
{
    mr_msg(2, "Restarting magicdev if necessary");
    sync();
    restart_magicdev_if_necessary();    // for RH+Gnome users

    mr_msg(2, "Restarting supermounts if necessary");
    sync();
    remount_supermounts_if_necessary(); // for Mandrake users

    mr_msg(2, "Unmounting /boot if necessary");
    sync();
    unmount_boot_if_necessary();    // for Gentoo users
}

/* create the mr_ar_conf structure from mondo's conf file */
static void mr_ar_store_conf(struct mr_ar_conf *mr_cnf) {
    
    mr_asprintf(&mr_cnf->iso_creation_cmd, mr_conf_sread("mondo_iso_creation_cmd"));
    mr_asprintf(&mr_cnf->iso_creation_options, mr_conf_sread("mondo_iso_creation_options"));
    mr_asprintf(&mr_cnf->iso_burning_cmd, mr_conf_sread("mondo_iso_burning_cmd"));
    mr_asprintf(&mr_cnf->iso_burning_options, mr_conf_sread("mondo_iso_burning_options"));
    mr_cnf->iso_burning_speed = mr_conf_iread("mondo_iso_burning_speed");
    mr_cnf->media_size = mr_conf_iread("mondo_media_size");
    mr_asprintf(&mr_cnf->media_device, mr_conf_sread("mondo_media_device"));
    mr_cnf->manual_tray = mr_conf_bread("mondo_manual_tray");
    mr_cnf->log_level = mr_conf_iread("mondo_log_level");
    mr_asprintf(&mr_cnf->prefix, mr_conf_sread("mondo_prefix"));
    mr_cnf->external_tape_blocksize = mr_conf_iread("mondo_external_tape_blocksize");
    mr_cnf->internal_tape_blocksize = mr_conf_iread("mondo_internal_tape_blocksize");
    mr_cnf->slice_size = mr_conf_iread("mondo_slice_size");
    mr_asprintf(&mr_cnf->deplist_file, mr_conf_sread("mondo_deplist_file"));
    mr_cnf->write_boot_floppy = mr_conf_bread("mondo_write_boot_floppy");
    mr_cnf->create_mindi_cd = mr_conf_bread("mondo_create_mindi_cd");
    mr_asprintf(&mr_cnf->kernel, mr_conf_sread("mondo_kernel"));
    mr_asprintf(&mr_cnf->additional_modules, mr_conf_sread("mondo_additional_modules"));
    mr_asprintf(&mr_cnf->boot_loader, mr_conf_sread("mondo_boot_loader"));
    mr_cnf->differential = mr_conf_bread("mondo_differential");
    mr_asprintf(&mr_cnf->compression_tool, mr_conf_sread("mondo_compression_tool"));
    mr_cnf->compression_level = mr_conf_iread("mondo_compression_level");
    mr_asprintf(&mr_cnf->exclude_paths, mr_conf_sread("mondo_exclude_paths"));
    mr_asprintf(&mr_cnf->include_paths, mr_conf_sread("mondo_include_paths"));
    mr_asprintf(&mr_cnf->ui_mode, mr_conf_sread("mondo_ui_mode"));
    mr_cnf->automatic_restore = mr_conf_bread("mondo_automatic_restore");
    mr_asprintf(&mr_cnf->scratch_dir, mr_conf_sread("mondo_scratch_dir"));
    mr_asprintf(&mr_cnf->tmp_dir, mr_conf_sread("mondo_tmp_dir"));
    mr_asprintf(&mr_cnf->images_dir, mr_conf_sread("mondo_images_dir"));
    mr_msg(5, "Directory for images is %s", mr_cnf->images_dir);
}

/* destroy the mr_ar_conf structure's content */
static void mr_ar_clean_conf(struct mr_ar_conf *mr_cnf) {
    
    if (mr_cnf == NULL) {
        return;
    }
    mr_free(mr_cnf->iso_creation_cmd);
    mr_free(mr_cnf->iso_creation_options);
    mr_free(mr_cnf->iso_burning_cmd);
    mr_free(mr_cnf->iso_burning_options);
    mr_free(mr_cnf->media_device);
    mr_free(mr_cnf->prefix);
    mr_free(mr_cnf->deplist_file);
    mr_free(mr_cnf->kernel);
    mr_free(mr_cnf->additional_modules);
    mr_free(mr_cnf->boot_loader);
    mr_free(mr_cnf->compression_tool);
    mr_free(mr_cnf->exclude_paths);
    mr_free(mr_cnf->include_paths);
    mr_free(mr_cnf->ui_mode);
    mr_free(mr_cnf->scratch_dir);
    mr_free(mr_cnf->tmp_dir);
    mr_free(mr_cnf->images_dir);
}

/* Create the pointer to the function called in mr_exit */
void (*mr_cleanup)(void) = NULL;

/* Cleanup all memory allocated in various structures */
void mr_ar_cleanup(void) {
    /* Highly incomplete function for the moment */
    /* We have to free all allocated memory */
    mr_ar_clean_conf(&mr_conf);
    /* We have to remove all temporary files */
    /* We have to unmount what has been mounted */
    /* We have to properly end newt */
    /* We have to remind people of log files */

    mr_msg_close();
}

/*-----------------------------------------------------------*/



/**
 * Backup/verify the user's data.
 * What did you think it did, anyway? :-)
 */
int main(int argc, char *argv[])
{
    struct s_bkpinfo *bkpinfo = NULL;
    struct stat stbuf;
    char *tmp = NULL;
    int res = 0;
    int retval = 0;
    char *say_at_end = NULL;
    char *say_at_end2 = NULL;

#ifdef ENABLE_NLS
    setlocale(LC_ALL, "");
    (void) textdomain("mondo");
#endif
    printf(_("Initializing..."));

    /* Reference the right cleanup function for mr_exit */
    mr_cleanup = &mr_ar_cleanup;

    /* initialize log file with time stamp */
    /* We start with a loglevel of 4 - Adapted later on */
    /* It's mandatory to set this up first as all mr_ functions rely on it */
    unlink(MONDO_LOGFILE);
    mr_msg_init(MONDO_LOGFILE,4);
    mr_msg(0, _("Time started: %s"), mr_date());

    /* Make sure I'm root; abort if not */
    if (getuid() != 0) {
        mr_log_exit(127, _("Please run as root."));
    }

    /* If -V, -v or --version then echo version no. and quit */
    if (argc == 2
        && (!strcmp(argv[argc - 1], "-v") || !strcmp(argv[argc - 1], "-V")
            || !strcmp(argv[argc - 1], "--version"))) {
        printf(_("mondoarchive v%s\nSee man page for help\n"), PACKAGE_VERSION);
        mr_exit(0, NULL);
    }

    /* Conf file management */
    /* Check md5 sum before */
    /* Get content */
    if (mr_conf_open(MONDO_CONF_DIR"/mondo.conf.dist") != 0) {
            mr_log_exit(-1, "Unable to open "MONDO_CONF_DIR"/mondo.conf.dist");
    }
    mr_ar_store_conf(&mr_conf);
    mr_conf_close();

    /* Add MONDO_SHARE + other environment variables for mindi */
    setenv_mondo_var();

    /* Initialize variables */
    malloc_libmondo_global_strings();
    diffs = 0;
    bkpinfo = mr_malloc(sizeof(struct s_bkpinfo));
    if (stat(MONDO_CACHE, &stbuf) != 0) {
        mr_mkdir(MONDO_CACHE,0x755);
    }

    /* BERLIOS: Hardcoded to be improved */
    unlink(MONDO_CACHE"/mindi.conf");
    unlink(MONDORESTORECFG);

    /* Configure the bkpinfo structure, global file paths, etc. */
    g_main_pid = getpid();
    mr_msg(9, "This");

    register_pid(g_main_pid, "mondo");
    set_signals(TRUE);          // catch SIGTERM, etc.
    run_program_and_log_output("dmesg -n1", TRUE);

    mr_msg(9, "Next");
    welcome_to_mondoarchive();
    distro_specific_kludges_at_start_of_mondoarchive();
    g_kernel_version = get_kernel_version();

    if (argc == 4 && !strcmp(argv[1], "getfattr")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
        if (!strstr(argv[2], "filelist")) {
            mr_msg(1,_("Sorry - filelist goes first\n"));
            finish(1);
        } else {
            finish(get_fattr_list(argv[2], argv[3]));
        }
        finish(0);
    }
    if (argc == 4 && !strcmp(argv[1], "setfattr")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
        finish(set_fattr_list(argv[2], argv[3]));
    }

    if (argc == 3 && !strcmp(argv[1], "wildcards")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
        tmp = mr_stresc(argv[2], WILDCHARS, BACKSLASH);
        printf("in=%s; out=%s\n", argv[2], tmp);
        mr_free(tmp);
        finish(1);
    }

    if (argc == 4 && !strcmp(argv[1], "getfacl")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
        if (!strstr(argv[2], "filelist")) {
            mr_msg(1,_("Sorry - filelist goes first\n"));
            finish(1);
        } else {
            finish(get_acl_list(argv[2], argv[3]));
        }
        finish(0);
    }
    if (argc == 4 && !strcmp(argv[1], "setfacl")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
        finish(set_acl_list(argv[2], argv[3]));
    }

    if (argc > 2 && !strcmp(argv[1], "find-cd")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
        malloc_string(tmp);
        if (find_cdrw_device(tmp)) {
            mr_msg(1,_("Failed to find CDR-RW drive\n"));
        } else {
            mr_msg(1,_("CD-RW is at %s\n"), tmp);
        }
        tmp[0] = '\0';
        if (find_cdrom_device(tmp, atoi(argv[2]))) {
            mr_msg(1,_("Failed to find CD-ROM drive\n"));
        } else {
            mr_msg(1,_("CD-ROM is at %s\n"), tmp);
        }
        mr_free(tmp);
        finish(0);
    }

    if (argc > 2 && !strcmp(argv[1], "find-dvd")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
        malloc_string(tmp);
        if (find_dvd_device(tmp, atoi(argv[2]))) {
            mr_msg(1,_("Failed to find DVD drive\n"));
        } else {
            mr_msg(1,_("DVD is at %s\n"), tmp);
        }
        mr_free(tmp);
        finish(0);
    }

    if (argc > 2 && !strcmp(argv[1], "disksize")) {
        printf("%s --> %ld\n", argv[2], get_phys_size_of_drive(argv[2]));
        finish(0);
    }
    if (argc > 2 && !strcmp(argv[1], "test-dev")) {
        if (is_dev_an_NTFS_dev(argv[2])) {
            mr_msg(1,_("%s is indeed an NTFS dev\n"), argv[2]);
        } else {
            mr_msg(1,_("%s is _not_ an NTFS dev\n"), argv[2]);
        }
        finish(0);
    }

    if (pre_param_configuration(bkpinfo)) {
        fatal_error
            ("Pre-param initialization phase failed. Please review the error messages above, make the specified changes, then try again. Exiting...");
    }
    sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
            bkpinfo->scratchdir);

    /* Process command line, if there is one. If not, ask user for info. */
    if (argc == 1) {
        g_text_mode = FALSE;
        setup_newt_stuff();
        res = interactively_obtain_media_parameters_from_user(bkpinfo, TRUE);   /* yes, archiving */
        if (res) {
            fatal_error
                ("Syntax error. Please review the parameters you have supplied and try again.");
        }
    } else {
        res = handle_incoming_parameters(argc, argv, bkpinfo);
        if (res) {
            mr_msg(1,
                _("Errors were detected in the command line you supplied.\n"));
            mr_msg(1,_("Please review the log file - %s \n"),MONDO_LOGFILE);
            mr_msg(1, "Mondoarchive will now exit.");
            finish(1);
        }
        setup_newt_stuff();
    }

/* Finish configuring global structures */
    if (post_param_configuration(bkpinfo)) {
        fatal_error
            ("Post-param initialization phase failed. Perhaps bad parameters were supplied to mondoarchive? Please review the documentation, error messages and logs. Exiting...");
    }

    log_to_screen
        (_("BusyBox's sources are available from http://www.busybox.net"));

    sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
            bkpinfo->scratchdir);

    /* If we're meant to backup then backup */
    if (bkpinfo->backup_data) {
        res = backup_data(bkpinfo);
        retval += res;
        if (res) {
            mr_strcat(say_at_end,
                   _("Data archived. Please check the logs, just as a precaution. "));
        } else {
            mr_strcat(say_at_end, _("Data archived OK. "));
        }
    }

    /* If we're meant to verify then verify */
    if (bkpinfo->verify_data) {
        res = verify_data(bkpinfo);
        if (res < 0) {
            mr_asprintf(&say_at_end2, _("%d difference%c found."), -res,
                    (-res != 1) ? 's' : ' ');
            res = 0;
        }
        retval += res;
    }

    /* Offer to write floppy disk images to physical disks */
    if (bkpinfo->backup_data && !g_skip_floppies) {
        res = offer_to_write_boot_floppies_to_physical_disks(bkpinfo);
        retval += res;
    }

    /* Report result of entire operation (success? errors?) */
    if (!retval) {
        mvaddstr_and_log_it(g_currentY++, 0,
                            _("Backup and/or verify ran to completion. Everything appears to be fine."));
    } else {
        mvaddstr_and_log_it(g_currentY++, 0,
                            _("Backup and/or verify ran to completion. However, errors did occur."));
    }

    if (does_file_exist("/var/cache/mindi/mondorescue.iso")) {
        log_to_screen
            (_("/var/cache/mindi/mondorescue.iso, a boot/utility CD, is available if you want it."));
    }


    if (length_of_file("/tmp/changed.files") > 2) {
        if (g_text_mode) {
            log_to_screen
                (_("Type 'less /tmp/changed.files' to see which files don't match the archives"));
        } else {
            mr_msg(1,
                    _("Type 'less /tmp/changed.files' to see which files don't match the archives"));
            mr_msg(2, "Calling popup_changelist_from_file()");
            popup_changelist_from_file("/tmp/changed.files");
            mr_msg(2, "Returned from popup_changelist_from_file()");
        }
    } else {
        unlink("/tmp/changed.files");
    }
    log_to_screen(say_at_end);
    mr_free(say_at_end);
    if (say_at_end2 != NULL) {
        log_to_screen(say_at_end2);
        mr_free(say_at_end2);
    }

    mr_asprintf(&tmp, "umount %s/tmpfs", bkpinfo->tmpdir);
    run_program_and_log_output(tmp, TRUE);
    mr_free(tmp);
    run_program_and_log_output(g_erase_tmpdir_and_scratchdir, TRUE);

    run_program_and_log_output("mount", 2);

    system("rm -f /var/cache/mondo-archive/last-backup.aborted");
    system("rm -Rf /tmp.mondo.* /mondo.scratch.*");
    if (!retval) {
        printf(_("Mondoarchive ran OK.\n"));
    } else {
        printf(_("Errors occurred during backup. Please check logfile.\n"));
    }
    distro_specific_kludges_at_end_of_mondoarchive();
    register_pid(0, "mondo");
    set_signals(FALSE);
    chdir("/tmp");              // just in case there's something wrong with g_erase_tmpdir_and_scratchdir
    system(g_erase_tmpdir_and_scratchdir);
    free_libmondo_global_strings();
    mr_free(bkpinfo);

    unlink("/tmp/filelist.full");
    unlink("/tmp/filelist.full.gz");

    if (!g_cdrom_drive_is_here) {
        mr_msg(10, "FYI, g_cdrom_drive_is_here was never used");
    }
    if (!g_dvd_drive_is_here) {
        mr_msg(10, "FYI, g_dvd_drive_is_here was never used");
    }

    /* finalize log file with time stamp */
    mr_msg(1, "Time finished: %s", mr_date());
    mr_msg_close();

    if (!g_text_mode) {
        popup_and_OK
            (_("Mondo Archive has finished its run. Please press ENTER to return to the shell prompt."));
        log_to_screen(_("See %s for details of backup run."), MONDO_LOGFILE);
        finish(retval);
    } else {
        printf(_("See %s for details of backup run.\n"), MONDO_LOGFILE);
        mr_exit(retval, NULL);
    }

    return EXIT_SUCCESS;
}