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Diffstat (limited to 'src/nwipe.c')
| -rw-r--r-- | src/nwipe.c | 1134 |
1 files changed, 1134 insertions, 0 deletions
diff --git a/src/nwipe.c b/src/nwipe.c new file mode 100644 index 0000000..9dc8110 --- /dev/null +++ b/src/nwipe.c @@ -0,0 +1,1134 @@ +/* + * nwipe.c: Darik's Wipe. + * + * Copyright Darik Horn <dajhorn-dban@vanadac.com>. + * + * Modifications to original dwipe Copyright Andy Beverley <andy@andybev.com> + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License as published by the Free Software + * Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ +#ifndef _DEFAULT_SOURCE +#define _DEFAULT_SOURCE +#endif + +#ifndef _POSIX_SOURCE +#define _POSIX_SOURCE +#endif + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <signal.h> +#include <pthread.h> +#include <sys/types.h> +#include <unistd.h> + +#include "nwipe.h" +#include "context.h" +#include "method.h" +#include "prng.h" +#include "options.h" +#include "device.h" +#include "logging.h" +#include "gui.h" +#include "temperature.h" +#include "miscellaneous.h" + +#include <sys/ioctl.h> /* FIXME: Twice Included */ +#include <sys/shm.h> +#include <wait.h> + +#include <parted/parted.h> +#include <parted/debug.h> +#include "conf.h" +#include "version.h" +#include "hpa_dco.h" +#include "conf.h" +#include <libconfig.h> + +int terminate_signal; +int user_abort; +int global_wipe_status; + +/* helper function for sorting */ +int devnamecmp( const void* a, const void* b ) +{ + // nwipe_log( NWIPE_LOG_DEBUG, "a: %s, b: %s", ( *( nwipe_context_t** ) a)->device_name, ( *( nwipe_context_t** ) + // b)->device_name ); + + int ldiff = strlen( ( *(nwipe_context_t**) a )->device_name ) - strlen( ( *(nwipe_context_t**) b )->device_name ); + if( ldiff != 0 ) + { + return ldiff; + } + int ret = strcmp( ( *(nwipe_context_t**) a )->device_name, ( *(nwipe_context_t**) b )->device_name ); + return ( ret ); +} + +int main( int argc, char** argv ) +{ + int nwipe_optind; // The result of nwipe_options(). + int nwipe_enumerated; // The number of contexts that have been enumerated. + int nwipe_error = 0; // An error counter. + int nwipe_selected = 0; // The number of contexts that have been selected. + int any_threads_still_running; // used in wipe thread cancellation wait loop + int thread_timeout_counter; // timeout thread cancellation after THREAD_CANCELLATION_TIMEOUT seconds + pthread_t nwipe_gui_thread = 0; // The thread ID of the GUI thread. + pthread_t nwipe_temperature_thread = 0; // The thread ID of the temperature update thread + pthread_t nwipe_sigint_thread; // The thread ID of the sigint handler. + + char modprobe_command[] = "modprobe %s"; + char modprobe_command2[] = "/sbin/modprobe %s"; + char modprobe_command3[] = "/usr/sbin/modprobe %s"; + char module_shortform[50]; + char final_cmd_modprobe[sizeof( modprobe_command ) + sizeof( module_shortform )]; + + /* The entropy source file handle. */ + int nwipe_entropy; + + /* The generic index variables. */ + int i; + int j; + + /* The generic result buffer. */ + int r; + + /* Initialise the termintaion signal, 1=terminate nwipe */ + terminate_signal = 0; + + /* Initialise the user abort signal, 1=User aborted with CNTRL-C,SIGTERM, SIGQUIT, SIGINT etc.. */ + user_abort = 0; + + /* nwipes return status value, set prior to exit at the end of nwipe, as no other exit points allowed */ + int return_status = 0; + + /* Initialise, flag indicating whether a wipe has actually started or not 0=no, 1=yes */ + global_wipe_status = 0; + + /* Initialise flags that indicate whether a fatal or non fatal error occurred on ANY drive */ + int fatal_errors_flag = 0; + int non_fatal_errors_flag = 0; + + /* Two arrays are used, containing pointers to the the typedef for each disk */ + /* The first array (c1) points to all devices, the second points to only */ + /* the disks selected for wiping. */ + + /* The array of pointers to enumerated contexts. */ + /* Initialised and populated in device scan. */ + nwipe_context_t** c1 = 0; + + if( geteuid() != 0 ) + { + printf( "nwipe must run with root permissions, which is not the case.\nAborting\n" ); + exit( 99 ); + } + + int wipe_threads_started = 0; + + /** NOTE ** NOTE ** NOTE ** NOTE ** NOTE ** NOTE ** NOTE ** NOTE ** NOTE ** + * Important Note: if you want nwipe_log messages to go into the logfile + * any 'nwipe_log()' commands must appear after the options are parsed here, + * else they will appear in the console but not in the logfile, that is, + * assuming you specified a log file on the command line as an nwipe option. + */ + + /***************************** + * Parse command line options. + */ + + /* Initialise the libconfig code that handles nwipe.conf */ + nwipe_conf_init(); + + nwipe_optind = nwipe_options_parse( argc, argv ); + + /* Log nwipes version */ + nwipe_log( NWIPE_LOG_INFO, "%s", banner ); + + /* Log OS info */ + nwipe_log_OSinfo(); + + /* Check that hdparm exists, we use hdparm for some HPA/DCO detection etc, if not + * exit nwipe. These checks are required if the PATH environment is not setup ! + * Example: Debian sid 'su' as opposed to 'su -' + */ + if( system( "which hdparm > /dev/null 2>&1" ) ) + { + if( system( "which /sbin/hdparm > /dev/null 2>&1" ) ) + { + if( system( "which /usr/bin/hdparm > /dev/null 2>&1" ) ) + { + nwipe_log( NWIPE_LOG_WARNING, "hdparm command not found." ); + nwipe_log( NWIPE_LOG_WARNING, + "Required by nwipe for HPA/DCO detection & correction and ATA secure erase." ); + nwipe_log( NWIPE_LOG_WARNING, "** Please install hdparm **\n" ); + cleanup(); + exit( 1 ); + } + } + } + + /* Check if the given path for PDF reports is a writeable directory */ + if( strcmp( nwipe_options.PDFreportpath, "noPDF" ) != 0 ) + { + if( access( nwipe_options.PDFreportpath, W_OK ) != 0 ) + { + nwipe_log( NWIPE_LOG_ERROR, "PDFreportpath %s is not a writeable directory.", nwipe_options.PDFreportpath ); + cleanup(); + exit( 2 ); + } + } + + if( nwipe_optind == argc ) + { + /* File names were not given by the user. Scan for devices. */ + nwipe_enumerated = nwipe_device_scan( &c1 ); + + if( terminate_signal == 1 ) + { + cleanup(); + exit( 1 ); + } + + if( nwipe_enumerated == 0 ) + { + nwipe_log( NWIPE_LOG_INFO, + "Storage devices not found. Nwipe should be run as root or sudo/su, i.e sudo nwipe etc" ); + cleanup(); + return -1; + } + else + { + nwipe_log( NWIPE_LOG_INFO, "Automatically enumerated %i devices.", nwipe_enumerated ); + } + } + else + { + argv += nwipe_optind; + argc -= nwipe_optind; + + nwipe_enumerated = nwipe_device_get( &c1, argv, argc ); + if( nwipe_enumerated == 0 ) + { + nwipe_log( NWIPE_LOG_ERROR, "Devices not found. Check you're not excluding drives unnecessarily," ); + nwipe_log( NWIPE_LOG_ERROR, "and you are running nwipe as sudo or as root." ); + printf( "Devices not found, check you're not excluding drives unnecessarily \n and you are running nwipe " + "as sudo or as root." ); + cleanup(); + exit( 1 ); + } + } + + /* sort list of devices here */ + qsort( (void*) c1, (size_t) nwipe_enumerated, sizeof( nwipe_context_t* ), devnamecmp ); + + if( terminate_signal == 1 ) + { + cleanup(); + exit( 1 ); + } + + /* Log the System information */ + nwipe_log_sysinfo(); + + /* The array of pointers to contexts that will actually be wiped. */ + nwipe_context_t** c2 = (nwipe_context_t**) malloc( nwipe_enumerated * sizeof( nwipe_context_t* ) ); + if( c2 == NULL ) + { + nwipe_log( NWIPE_LOG_ERROR, "memory allocation for c2 failed" ); + cleanup(); + exit( 1 ); + } + + /* Open the entropy source. */ + nwipe_entropy = open( NWIPE_KNOB_ENTROPY, O_RDONLY ); + + /* Check the result. */ + if( nwipe_entropy < 0 ) + { + nwipe_perror( errno, __FUNCTION__, "open" ); + nwipe_log( NWIPE_LOG_FATAL, "Unable to open entropy source %s.", NWIPE_KNOB_ENTROPY ); + cleanup(); + free( c2 ); + return errno; + } + + nwipe_log( NWIPE_LOG_NOTICE, "Opened entropy source '%s'.", NWIPE_KNOB_ENTROPY ); + + /* Block relevant signals in main thread. Any other threads that are */ + /* created after this will also block those signals. */ + sigset_t sigset; + sigemptyset( &sigset ); + sigaddset( &sigset, SIGHUP ); + sigaddset( &sigset, SIGTERM ); + sigaddset( &sigset, SIGQUIT ); + sigaddset( &sigset, SIGINT ); + sigaddset( &sigset, SIGUSR1 ); + pthread_sigmask( SIG_SETMASK, &sigset, NULL ); + + /* Create a signal handler thread. This thread will catch all */ + /* signals and decide what to do with them. This will only */ + /* catch nondirected signals. (I.e., if a thread causes a SIGFPE */ + /* then that thread will get that signal. */ + + /* Pass a pointer to a struct containing all data to the signal handler. */ + nwipe_misc_thread_data_t nwipe_misc_thread_data; + nwipe_thread_data_ptr_t nwipe_thread_data_ptr; + + nwipe_thread_data_ptr.c = c2; + nwipe_misc_thread_data.nwipe_enumerated = nwipe_enumerated; + nwipe_misc_thread_data.nwipe_selected = 0; + if( !nwipe_options.nogui ) + nwipe_misc_thread_data.gui_thread = &nwipe_gui_thread; + nwipe_thread_data_ptr.nwipe_misc_thread_data = &nwipe_misc_thread_data; + + if( !nwipe_options.nosignals ) + { + pthread_attr_t pthread_attr; + pthread_attr_init( &pthread_attr ); + pthread_attr_setdetachstate( &pthread_attr, PTHREAD_CREATE_DETACHED ); + + pthread_create( &nwipe_sigint_thread, &pthread_attr, signal_hand, &nwipe_thread_data_ptr ); + } + + /* Makesure the drivetemp module is loaded, else drives hwmon entries won't appear in /sys/class/hwmon */ + final_cmd_modprobe[0] = 0; + + /* The kernel module we are going to load */ + strcpy( module_shortform, "drivetemp" ); + + /* Determine whether we can access modprobe, required if the PATH environment is not setup ! (Debian sid 'su' as + * opposed to 'su -' */ + + if( system( "which modprobe > /dev/null 2>&1" ) ) + { + if( system( "which /sbin/modprobe > /dev/null 2>&1" ) ) + { + if( system( "which /usr/sbin/modprobe > /dev/null 2>&1" ) ) + { + nwipe_log( NWIPE_LOG_WARNING, "modprobe command not found. Install kmod package (modprobe)) !" ); + nwipe_log( NWIPE_LOG_WARNING, "Most temperature monitoring may be unavailable as module drivetemp" ); + nwipe_log( NWIPE_LOG_WARNING, "could not be loaded. drivetemp is not available on kernels < v5.5" ); + } + else + { + sprintf( final_cmd_modprobe, modprobe_command3, module_shortform ); + } + } + else + { + sprintf( final_cmd_modprobe, modprobe_command2, module_shortform ); + } + } + else + { + sprintf( final_cmd_modprobe, modprobe_command, module_shortform ); + } + + /* load the drivetemp module */ + if( system( final_cmd_modprobe ) != 0 ) + { + nwipe_log( NWIPE_LOG_WARNING, "hwmon: Unable to load module drivetemp, temperatures may be unavailable." ); + nwipe_log( NWIPE_LOG_WARNING, "hwmon: It's possible the drivetemp software isn't modular but built-in" ); + nwipe_log( NWIPE_LOG_WARNING, "hwmon: to the kernel, as is the case with ShredOS.x86_64 in which case" ); + nwipe_log( NWIPE_LOG_WARNING, "hwmon: the temperatures will actually be available despite this issue." ); + } + else + { + nwipe_log( NWIPE_LOG_NOTICE, "hwmon: Module drivetemp loaded, drive temperatures available" ); + } + + /* A context struct for each device has already been created. */ + /* Now set specific nwipe options */ + for( i = 0; i < nwipe_enumerated; i++ ) + { + + /* Set the entropy source. */ + c1[i]->entropy_fd = nwipe_entropy; + + if( nwipe_options.autonuke ) + { + /* When the autonuke option is set, select all disks. */ + // TODO - partitions + // if( c1[i].device_part == 0 ) { c1[i].select = NWIPE_SELECT_TRUE; } + // else { c1[i].select = NWIPE_SELECT_TRUE_PARENT; } + c1[i]->select = NWIPE_SELECT_TRUE; + } + else + { + /* The user must manually select devices. */ + c1[i]->select = NWIPE_SELECT_FALSE; + } + + /* Initialise temperature variables for device */ + nwipe_init_temperature( c1[i] ); + if( nwipe_options.verbose ) + { + nwipe_log( NWIPE_LOG_NOTICE, "hwmon: Device %s hwmon path = %s", c1[i]->device_name, c1[i]->temp1_path ); + } + + // nwipe_update_temperature( c1[i] ); + + /* Log the temperature crtical, highest, lowest and lowest critical temperature + * limits to nwipes log file using the INFO catagory + */ + + nwipe_log_drives_temperature_limits( c1[i] ); + } + + /* Check for initialization errors. */ + if( nwipe_error ) + { + nwipe_log( NWIPE_LOG_ERROR, "Initialization error %i\n", nwipe_error ); + cleanup(); + return -1; + } + + /* Set up the data structures to pass the temperature thread the data it needs */ + nwipe_thread_data_ptr_t nwipe_temperature_thread_data; + nwipe_temperature_thread_data.c = c1; + nwipe_temperature_thread_data.nwipe_misc_thread_data = &nwipe_misc_thread_data; + + /* Fork the temperature thread */ + errno = pthread_create( + &nwipe_temperature_thread, NULL, nwipe_update_temperature_thread, &nwipe_temperature_thread_data ); + + /* Start the ncurses interface. */ + if( !nwipe_options.nogui ) + nwipe_gui_init(); + + if( nwipe_options.autonuke == 1 ) + { + /* Print the options window. */ + if( !nwipe_options.nogui ) + nwipe_gui_options(); + } + else + { + /* Get device selections from the user. */ + if( nwipe_options.nogui ) + { + printf( "--nogui option must be used with autonuke option\n" ); + cleanup(); + exit( 1 ); + } + else + { + if( nwipe_options.PDF_preview_details == 1 ) + { + nwipe_gui_preview_org_customer( SHOWING_PRIOR_TO_DRIVE_SELECTION ); + } + + nwipe_gui_select( nwipe_enumerated, c1 ); + } + } + + /* Initialise some of the variables in the drive contexts + */ + for( i = 0; i < nwipe_enumerated; i++ ) + { + /* Set the PRNG implementation, which must always come after the function nwipe_gui_select ! */ + c1[i]->prng = nwipe_options.prng; + c1[i]->prng_seed.length = 0; + c1[i]->prng_seed.s = 0; + c1[i]->prng_state = 0; + + /* Count the number of selected contexts. */ + if( c1[i]->select == NWIPE_SELECT_TRUE ) + { + nwipe_selected += 1; + } + + /* Initialise the wipe result value */ + c1[i]->result = 0; + + /* Initialise the variable that tracks how much of the drive has been erased */ + c1[i]->bytes_erased = 0; + } + + /* Pass the number selected to the struct for other threads */ + nwipe_misc_thread_data.nwipe_selected = nwipe_selected; + + /* Populate the array of selected contexts. */ + for( i = 0, j = 0; i < nwipe_enumerated; i++ ) + { + if( c1[i]->select == NWIPE_SELECT_TRUE ) + { + /* Copy the context. */ + c2[j++] = c1[i]; + } + } + + /* TODO: free c1 and c2 memory. */ + if( user_abort == 0 ) + { + /* Log the wipe options that have been selected immediately prior to the start of the wipe */ + nwipe_options_log(); + + /* The wipe has been initiated */ + global_wipe_status = 1; + + for( i = 0; i < nwipe_selected; i++ ) + { + /* A result buffer for the BLKGETSIZE64 ioctl. */ + u64 size64; + + /* Initialise the spinner character index */ + c2[i]->spinner_idx = 0; + + /* Initialise the start and end time of the wipe */ + c2[i]->start_time = 0; + c2[i]->end_time = 0; + + /* Initialise the wipe_status flag, -1 = wipe not yet started */ + c2[i]->wipe_status = -1; + + /* Open the file for reads and writes. */ + c2[i]->device_fd = open( c2[i]->device_name, O_RDWR ); + + /* Check the open() result. */ + if( c2[i]->device_fd < 0 ) + { + nwipe_perror( errno, __FUNCTION__, "open" ); + nwipe_log( NWIPE_LOG_WARNING, "Unable to open device '%s'.", c2[i]->device_name ); + c2[i]->select = NWIPE_SELECT_DISABLED; + continue; + } + + /* Stat the file. */ + if( fstat( c2[i]->device_fd, &c2[i]->device_stat ) != 0 ) + { + nwipe_perror( errno, __FUNCTION__, "fstat" ); + nwipe_log( NWIPE_LOG_ERROR, "Unable to stat file '%s'.", c2[i]->device_name ); + nwipe_error++; + continue; + } + + /* Check that the file is a block device. */ + if( !S_ISBLK( c2[i]->device_stat.st_mode ) ) + { + nwipe_log( NWIPE_LOG_ERROR, "'%s' is not a block device.", c2[i]->device_name ); + nwipe_error++; + continue; + } + + /* TODO: Lock the file for exclusive access. */ + /* + if( flock( c2[i]->device_fd, LOCK_EX | LOCK_NB ) != 0 ) + { + nwipe_perror( errno, __FUNCTION__, "flock" ); + nwipe_log( NWIPE_LOG_ERROR, "Unable to lock the '%s' file.", c2[i]->device_name ); + nwipe_error++; + continue; + } + */ + + /* Print serial number of device if it exists. */ + if( strlen( (const char*) c2[i]->device_serial_no ) ) + { + nwipe_log( NWIPE_LOG_NOTICE, "%s has serial number %s", c2[i]->device_name, c2[i]->device_serial_no ); + } + + /* Do sector size and block size checking. I don't think this does anything useful as logical/Physical + * sector sizes are obtained by libparted in check.c */ + if( ioctl( c2[i]->device_fd, BLKSSZGET, &c2[i]->device_sector_size ) == 0 ) + { + + if( ioctl( c2[i]->device_fd, BLKBSZGET, &c2[i]->device_block_size ) != 0 ) + { + nwipe_log( NWIPE_LOG_WARNING, "Device '%s' failed BLKBSZGET ioctl.", c2[i]->device_name ); + c2[i]->device_block_size = 0; + } + } + else + { + nwipe_log( NWIPE_LOG_WARNING, "Device '%s' failed BLKSSZGET ioctl.", c2[i]->device_name ); + c2[i]->device_sector_size = 0; + c2[i]->device_block_size = 0; + } + + /* The st_size field is zero for block devices. */ + /* ioctl( c2[i]->device_fd, BLKGETSIZE64, &c2[i]->device_size ); */ + + /* Seek to the end of the device to determine its size. */ + c2[i]->device_size = lseek( c2[i]->device_fd, 0, SEEK_END ); + + /* Also ask the driver for the device size. */ + /* if( ioctl( c2[i]->device_fd, BLKGETSIZE64, &size64 ) ) */ + if( ioctl( c2[i]->device_fd, _IOR( 0x12, 114, size_t ), &size64 ) ) + { + /* The ioctl failed. */ + fprintf( stderr, "Error: BLKGETSIZE64 failed on '%s'.\n", c2[i]->device_name ); + nwipe_log( NWIPE_LOG_ERROR, "BLKGETSIZE64 failed on '%s'.\n", c2[i]->device_name ); + nwipe_error++; + } + c2[i]->device_size = size64; + + /* Check whether the two size values agree. */ + if( c2[i]->device_size != size64 ) + { + /* This could be caused by the linux last-odd-block problem. */ + fprintf( stderr, "Error: Last-odd-block detected on '%s'.\n", c2[i]->device_name ); + nwipe_log( NWIPE_LOG_ERROR, "Last-odd-block detected on '%s'.", c2[i]->device_name ); + nwipe_error++; + } + + if( c2[i]->device_size == (long long) -1 ) + { + /* We cannot determine the size of this device. */ + nwipe_perror( errno, __FUNCTION__, "lseek" ); + nwipe_log( NWIPE_LOG_ERROR, "Unable to determine the size of '%s'.", c2[i]->device_name ); + nwipe_error++; + } + else + { + /* Reset the file pointer. */ + r = lseek( c2[i]->device_fd, 0, SEEK_SET ); + + if( r == (off64_t) -1 ) + { + nwipe_perror( errno, __FUNCTION__, "lseek" ); + nwipe_log( NWIPE_LOG_ERROR, "Unable to reset the '%s' file offset.", c2[i]->device_name ); + nwipe_error++; + } + } + + if( c2[i]->device_size == 0 ) + { + nwipe_log( NWIPE_LOG_ERROR, + "%s, sect/blk/dev %i/%i/%llu", + c2[i]->device_name, + c2[i]->device_sector_size, + c2[i]->device_block_size, + c2[i]->device_size ); + nwipe_error++; + continue; + } + else + { + nwipe_log( NWIPE_LOG_NOTICE, + "%s, sect/blk/dev %i/%i/%llu", + c2[i]->device_name, + c2[i]->device_sector_size, + c2[i]->device_block_size, + c2[i]->device_size ); + } + + /* Fork a child process. */ + errno = pthread_create( &c2[i]->thread, NULL, nwipe_options.method, (void*) c2[i] ); + if( errno ) + { + nwipe_perror( errno, __FUNCTION__, "pthread_create" ); + if( !nwipe_options.nogui ) + nwipe_gui_free(); + return errno; + } + else + { + wipe_threads_started = 1; + } + } + } + + /* Change the terminal mode to non-blocking input. */ + nodelay( stdscr, 0 ); + + /* Set getch to delay in order to slow screen updates. */ + halfdelay( NWIPE_KNOB_SLEEP * 10 ); + + /* Set up data structs to pass the GUI thread the data it needs. */ + nwipe_thread_data_ptr_t nwipe_gui_data; + if( !nwipe_options.nogui ) + { + nwipe_gui_data.c = c2; + nwipe_gui_data.nwipe_misc_thread_data = &nwipe_misc_thread_data; + /* Fork the GUI thread. */ + errno = pthread_create( &nwipe_gui_thread, NULL, nwipe_gui_status, &nwipe_gui_data ); + } + + /* Wait for all the wiping threads to finish, but don't wait if we receive the terminate signal */ + + /* set getch delay to 2/10th second. */ + halfdelay( 10 ); + + i = 0; + while( i < nwipe_selected && terminate_signal == 0 ) + { + if( i == nwipe_selected ) + { + break; + } + + if( c2[i]->wipe_status != 0 ) + { + i = 0; + } + else + { + i++; + continue; + } + sleep( 1 ); /* DO NOT REMOVE ! Stops the routine hogging CPU cycles */ + } + + if( terminate_signal != 1 ) + { + if( !nwipe_options.nowait && !nwipe_options.autopoweroff ) + { + do + { + sleep( 1 ); + + } while( terminate_signal != 1 ); + } + } + if( nwipe_options.verbose ) + { + nwipe_log( NWIPE_LOG_INFO, "Exit in progress" ); + } + /* Send a REQUEST for the wipe threads to be cancelled */ + for( i = 0; i < nwipe_selected; i++ ) + { + + if( c2[i]->thread ) + { + if( nwipe_options.verbose ) + { + nwipe_log( NWIPE_LOG_INFO, "Requesting wipe thread cancellation for %s", c2[i]->device_name ); + } + pthread_cancel( c2[i]->thread ); + } + } + + /* Kill the GUI thread */ + if( nwipe_gui_thread ) + { + if( nwipe_options.verbose ) + { + nwipe_log( NWIPE_LOG_INFO, "Cancelling the GUI thread." ); + } + + /* We don't want to use pthread_cancel as our GUI thread is aware of the control-c + * signal and will exit itself we just join the GUI thread and wait for confirmation + */ + r = pthread_join( nwipe_gui_thread, NULL ); + if( r != 0 ) + { + nwipe_log( NWIPE_LOG_WARNING, "main()>pthread_join():Error when waiting for GUI thread to cancel." ); + } + else + { + if( nwipe_options.verbose ) + { + nwipe_log( NWIPE_LOG_INFO, "GUI compute_stats thread has been cancelled" ); + } + } + } + + /* Release the gui. */ + if( !nwipe_options.nogui ) + { + nwipe_gui_free(); + } + + /* Now join the wipe threads and wait until they have terminated */ + any_threads_still_running = 1; + thread_timeout_counter = THREAD_CANCELLATION_TIMEOUT; + while( any_threads_still_running ) + { + /* quit waiting if we've tried 'thread_timeout_counter' times */ + if( thread_timeout_counter == 0 ) + { + break; + } + + any_threads_still_running = 0; + for( i = 0; i < nwipe_selected; i++ ) + { + if( c2[i]->thread ) + { + printf( "\nWaiting for wipe thread to cancel for %s\n", c2[i]->device_name ); + + /* Joins the thread and waits for completion before continuing */ + r = pthread_join( c2[i]->thread, NULL ); + if( r != 0 ) + { + nwipe_log( NWIPE_LOG_ERROR, + "Error joining the wipe thread when waiting for thread to cancel.", + c2[i]->device_name ); + + if( r == EDEADLK ) + { + nwipe_log( NWIPE_LOG_ERROR, + "Error joining the wipe thread: EDEADLK: Deadlock detected.", + c2[i]->device_name ); + } + else + { + if( r == EINVAL ) + { + nwipe_log( NWIPE_LOG_ERROR, + "Error joining the wipe thread: %s EINVAL: thread is not joinable.", + c2[i]->device_name ); + } + else + { + if( r == ESRCH ) + { + nwipe_log( NWIPE_LOG_ERROR, + "Error joining the wipe thread: %s ESRCH: no matching thread found", + c2[i]->device_name ); + } + } + } + + any_threads_still_running = 1; + } + else + { + c2[i]->thread = 0; /* Zero the thread so we know it's been cancelled */ + + if( nwipe_options.verbose ) + { + nwipe_log( NWIPE_LOG_INFO, "Wipe thread for device %s has terminated", c2[i]->device_name ); + } + + /* Close the device file descriptor. */ + close( c2[i]->device_fd ); + } + } + } + thread_timeout_counter--; + sleep( 1 ); + } + + /* Now all the wipe threads have finished, we can issue a terminate_signal = 1 + * which will cause the temperature update thread to terminate, this is necessary + * because in gui mode the terminate_signal is set when the user presses a key to + * exit on completion of all the wipes, however in non gui mode that code isn't + * active (being in the gui section) so here we need to set the terminate signal + * specifically for a completed wipes/s just for non gui mode. + */ + terminate_signal = 1; + + /* Kill the temperature update thread */ + if( nwipe_temperature_thread ) + { + if( nwipe_options.verbose ) + { + nwipe_log( NWIPE_LOG_INFO, "Cancelling the temperature thread." ); + } + + /* We don't want to use pthread_cancel as our temperature thread is aware of the control-c + * signal and will exit itself we just join the temperature thread and wait for confirmation + */ + r = pthread_join( nwipe_temperature_thread, NULL ); + if( r != 0 ) + { + nwipe_log( NWIPE_LOG_WARNING, + "main()>pthread_join():Error when waiting for temperature thread to cancel." ); + } + else + { + if( nwipe_options.verbose ) + { + nwipe_log( NWIPE_LOG_INFO, "temperature thread has been cancelled" ); + } + } + } + + if( nwipe_options.verbose ) + { + for( i = 0; i < nwipe_selected; i++ ) + { + nwipe_log( NWIPE_LOG_DEBUG, + "Status: %s, result=%d, pass_errors=%llu, verify_errors=%llu, fsync_errors=%llu", + c2[i]->device_name, + c2[i]->result, + c2[i]->pass_errors, + c2[i]->verify_errors, + c2[i]->fsyncdata_errors ); + } + } + + /* if no wipe threads started then zero each selected drive result flag, + * as we don't need to report fatal/non fatal errors if no wipes were ever started ! */ + if( wipe_threads_started == 0 ) + { + for( i = 0; i < nwipe_selected; i++ ) + { + c2[i]->result = 0; + } + } + else + { + for( i = 0; i < nwipe_selected; i++ ) + { + /* Check for errors. */ + if( c2[i]->result != 0 || c2[i]->pass_errors != 0 || c2[i]->verify_errors != 0 + || c2[i]->fsyncdata_errors != 0 ) + { + /* If the run_method ever returns anything other than zero then makesure there is at least one pass + * error This is so that the log summary tables correctly show a failure when one occurs as it only + * shows pass, verification and fdatasync errors. */ + if( c2[i]->result != 0 ) + { + if( c2[i]->pass_errors == 0 ) + { + c2[i]->pass_errors = 1; + } + } + + nwipe_log( NWIPE_LOG_FATAL, + "Nwipe exited with errors on device = %s, see log for specific error\n", + c2[i]->device_name ); + nwipe_log( NWIPE_LOG_DEBUG, + "Status: %s, result=%d, pass_errors=%llu, verify_errors=%llu, fsync_errors=%llu", + c2[i]->device_name, + c2[i]->result, + c2[i]->pass_errors, + c2[i]->verify_errors, + c2[i]->fsyncdata_errors ); + non_fatal_errors_flag = 1; + return_status = 1; + } + } + } + + /* Generate and send the drive status summary to the log */ + nwipe_log_summary( c2, nwipe_selected ); + + /* Print a one line status message for the user */ + if( return_status == 0 || return_status == 1 ) + { + if( user_abort == 1 ) + { + if( global_wipe_status == 1 ) + { + nwipe_log( NWIPE_LOG_INFO, + "Nwipe was aborted by the user. Check the summary table for the drive status." ); + } + else + { + nwipe_log( NWIPE_LOG_INFO, "Nwipe was aborted by the user prior to the wipe starting." ); + } + } + else + { + if( fatal_errors_flag == 1 || non_fatal_errors_flag == 1 ) + { + nwipe_log( NWIPE_LOG_INFO, + "Nwipe exited with errors, check the log & summary table for individual drive status." ); + } + else + { + nwipe_log( NWIPE_LOG_INFO, "Nwipe successfully completed. See summary table for details." ); + } + } + } + + cleanup(); + + check_for_autopoweroff(); + + /* Exit. */ + return return_status; +} + +void* signal_hand( void* ptr ) +{ + int sig; + int hours; + int minutes; + int seconds; + + hours = 0; + minutes = 0; + seconds = 0; + + // Define signals that this handler should react to + sigset_t sigset; + sigemptyset( &sigset ); + sigaddset( &sigset, SIGHUP ); + sigaddset( &sigset, SIGTERM ); + sigaddset( &sigset, SIGQUIT ); + sigaddset( &sigset, SIGINT ); + sigaddset( &sigset, SIGUSR1 ); + + int i; + char eta[9]; + + /* Set up the structs we will use for the data required. */ + nwipe_thread_data_ptr_t* nwipe_thread_data_ptr; + nwipe_context_t** c; + nwipe_misc_thread_data_t* nwipe_misc_thread_data; + + /* Retrieve from the pointer passed to the function. */ + nwipe_thread_data_ptr = (nwipe_thread_data_ptr_t*) ptr; + c = nwipe_thread_data_ptr->c; + nwipe_misc_thread_data = nwipe_thread_data_ptr->nwipe_misc_thread_data; + + while( 1 ) + { + /* wait for a signal to arrive */ + sigwait( &sigset, &sig ); + + switch( sig ) + { + + // Log current status. All values are automatically updated by the GUI + case SIGUSR1: + compute_stats( ptr ); + + for( i = 0; i < nwipe_misc_thread_data->nwipe_selected; i++ ) + { + + if( c[i]->thread ) + { + char* status = ""; + switch( c[i]->pass_type ) + { + case NWIPE_PASS_FINAL_BLANK: + status = "[blanking]"; + break; + + case NWIPE_PASS_FINAL_OPS2: + status = "[OPS-II final]"; + break; + + case NWIPE_PASS_WRITE: + status = "[writing]"; + break; + + case NWIPE_PASS_VERIFY: + status = "[verifying]"; + break; + + case NWIPE_PASS_NONE: + break; + } + if( c[i]->sync_status ) + { + status = "[syncing]"; + } + + convert_seconds_to_hours_minutes_seconds( c[i]->eta, &hours, &minutes, &seconds ); + + nwipe_log( NWIPE_LOG_INFO, + "%s: %05.2f%%, round %i of %i, pass %i of %i, eta %02i:%02i:%02i, %s", + c[i]->device_name, + c[i]->round_percent, + c[i]->round_working, + c[i]->round_count, + c[i]->pass_working, + c[i]->pass_count, + hours, + minutes, + seconds, + status ); + } + else + { + if( c[i]->result == 0 ) + { + nwipe_log( NWIPE_LOG_INFO, "%s: Success", c[i]->device_name ); + } + else if( c[i]->signal ) + { + nwipe_log( + NWIPE_LOG_INFO, "%s: >>> FAILURE! <<<: signal %i", c[i]->device_name, c[i]->signal ); + } + else + { + nwipe_log( + NWIPE_LOG_INFO, "%s: >>> FAILURE! <<<: code %i", c[i]->device_name, c[i]->result ); + } + } + } + + break; + + case SIGHUP: + case SIGINT: + case SIGQUIT: + case SIGTERM: + /* Set termination flag for main() which will do housekeeping prior to exit */ + terminate_signal = 1; + + /* Set the user abort flag */ + user_abort = 1; + + /* Return control to the main thread, returning the signal received */ + return ( (void*) 0 ); + + break; + } + } + + return ( 0 ); +} + +int cleanup() +{ + int i; + extern int log_elements_displayed; // initialised and found in logging.c + extern int log_elements_allocated; // initialised and found in logging.c + extern char** log_lines; + extern config_t nwipe_cfg; + + /* Print the logs held in memory to the console */ + for( i = log_elements_displayed; i < log_elements_allocated; i++ ) + { + printf( "%s\n", log_lines[i] ); + } + fflush( stdout ); + + /* Deallocate memory used by logging */ + if( log_elements_allocated != 0 ) + { + for( i = 0; i < log_elements_allocated; i++ ) + { + free( log_lines[i] ); + } + log_elements_allocated = 0; // zeroed just in case cleanup is called twice. + free( log_lines ); + } + + /* Deallocate libconfig resources */ + config_destroy( &nwipe_cfg ); + + /* TODO: Any other cleanup required ? */ + + return 0; +} +void check_for_autopoweroff( void ) +{ + char cmd[] = "shutdown -Ph +1 \"System going down in one minute\""; + FILE* fp; + int r; // A result buffer. + + /* User request auto power down ? */ + if( nwipe_options.autopoweroff == 1 ) + { + fp = popen( cmd, "r" ); + if( fp == NULL ) + { + nwipe_log( NWIPE_LOG_INFO, "Failed to autopoweroff to %s", cmd ); + return; + } + r = pclose( fp ); + } +} |