mirror of
https://github.com/iustin/mt-st.git
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0c7307cc7a
Codes are added for the newer drives. The TS11xx names are added to the desciptions of codes for non-encrypted tape. Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
798 lines
31 KiB
C
798 lines
31 KiB
C
/* This file contains the source of the 'mt' program intended for
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Linux systems. The program supports the basic mt commands found
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in most Unix-like systems. In addition to this the program
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supports several commands designed for use with the Linux SCSI
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tape drive.
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Maintained by Iustin Pop (iustin@k1024.org).
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Copyright by Kai Mäkisara, 1998 - 2008. The program may be distributed
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according to the GNU Public License.
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*/
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/sysmacros.h>
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#include <sys/types.h>
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#include <sys/utsname.h>
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#include <unistd.h>
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#include "mtio.h"
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#include "version.h"
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#ifndef DEFTAPE
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#define DEFTAPE "/dev/tape" /* default tape device */
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#endif /* DEFTAPE */
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typedef struct cmdef_tr cmdef_tr;
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typedef int (*cmdfunc)(int, struct cmdef_tr *, int, char **);
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struct cmdef_tr {
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char *cmd_name;
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int cmd_code;
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cmdfunc cmd_function;
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int cmd_count_bits;
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unsigned char cmd_fdtype;
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unsigned char arg_cnt;
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int error_tests;
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};
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#define NO_FD 0
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#define FD_RDONLY 1
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#define FD_RDWR 2
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#define NO_ARGS 0
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#define ONE_ARG 1
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#define TWO_ARGS 2
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#define MANY_ARGS 255
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#define DO_BOOLEANS 1002
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#define SET_BOOLEANS 1003
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#define CLEAR_BOOLEANS 1004
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#define ET_ONLINE 1
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#define ET_WPROT 2
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static void usage(int explain, int exitcode) __attribute__((noreturn));
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static void version() __attribute__((noreturn));
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static int do_standard(int, cmdef_tr *, int, char **);
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static int do_drvbuffer(int, cmdef_tr *, int, char **);
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static int do_options(int, cmdef_tr *, int, char **);
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static int do_tell(int, cmdef_tr *, int, char **);
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static int do_partseek(int, cmdef_tr *, int, char **);
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static int do_status(int, cmdef_tr *, int, char **);
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static int print_densities(int, cmdef_tr *, int, char **);
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static int do_asf(int, cmdef_tr *, int, char **);
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static int do_show_options(int, cmdef_tr *, int, char **);
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static void test_error(int, cmdef_tr *);
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/* Formatting note: the tables below were formatted using Emacs's
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* extended align regex, using <,\(\s-+\)[A-Za-z0-9"]> as complex align
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* regex (without <>), and repeated=y. The final curly brace is aligned
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* separately. */
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static cmdef_tr cmds[] = {
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/* clang-format off */
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{ "weof", MTWEOF, do_standard, 0, FD_RDWR, ONE_ARG, ET_ONLINE | ET_WPROT },
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{ "wset", MTWSM, do_standard, 0, FD_RDWR, ONE_ARG, ET_ONLINE | ET_WPROT },
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{ "eof", MTWEOF, do_standard, 0, FD_RDWR, ONE_ARG, ET_ONLINE },
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{ "fsf", MTFSF, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "fsfm", MTFSFM, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "bsf", MTBSF, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "bsfm", MTBSFM, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "fsr", MTFSR, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "bsr", MTBSR, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "fss", MTFSS, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "bss", MTBSS, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "rewind", MTREW, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "offline", MTOFFL, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "rewoffl", MTOFFL, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "eject", MTOFFL, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "retension", MTRETEN, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "eod", MTEOM, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "seod", MTEOM, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "seek", MTSEEK, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "tell", MTTELL, do_tell, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "status", MTNOP, do_status, 0, FD_RDONLY, NO_ARGS, 0 },
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{ "erase", MTERASE, do_standard, 0, FD_RDWR, ONE_ARG, ET_ONLINE },
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{ "setblk", MTSETBLK, do_standard, 0, FD_RDONLY, ONE_ARG, 0 },
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{ "lock", MTLOCK, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "unlock", MTUNLOCK, do_standard, 0, FD_RDONLY, NO_ARGS, ET_ONLINE },
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{ "load", MTLOAD, do_standard, 0, FD_RDONLY, ONE_ARG, 0 },
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{ "compression", MTCOMPRESSION, do_standard, 0, FD_RDONLY, ONE_ARG, 0 },
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{ "setdensity", MTSETDENSITY, do_standard, 0, FD_RDONLY, ONE_ARG, 0 },
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{ "drvbuffer", MTSETDRVBUFFER, do_drvbuffer, 0, FD_RDONLY, ONE_ARG, 0 },
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{ "stwrthreshold", MTSETDRVBUFFER, do_drvbuffer, MT_ST_WRITE_THRESHOLD, FD_RDONLY, ONE_ARG, 0 },
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{ "stoptions", DO_BOOLEANS, do_options, 0, FD_RDONLY, MANY_ARGS, 0 },
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{ "stsetoptions", SET_BOOLEANS, do_options, 0, FD_RDONLY, MANY_ARGS, 0 },
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{ "stclearoptions", CLEAR_BOOLEANS, do_options, 0, FD_RDONLY, MANY_ARGS, 0 },
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{ "defblksize", MTSETDRVBUFFER, do_drvbuffer, MT_ST_DEF_BLKSIZE, FD_RDONLY, ONE_ARG, 0 },
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{ "defdensity", MTSETDRVBUFFER, do_drvbuffer, MT_ST_DEF_DENSITY, FD_RDONLY, ONE_ARG, 0 },
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{ "defdrvbuffer", MTSETDRVBUFFER, do_drvbuffer, MT_ST_DEF_DRVBUFFER, FD_RDONLY, ONE_ARG, 0 },
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{ "defcompression", MTSETDRVBUFFER, do_drvbuffer, MT_ST_DEF_COMPRESSION, FD_RDONLY, ONE_ARG, 0 },
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{ "stsetcln", MTSETDRVBUFFER, do_drvbuffer, MT_ST_SET_CLN, FD_RDONLY, ONE_ARG, 0 },
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{ "sttimeout", MTSETDRVBUFFER, do_drvbuffer, MT_ST_SET_TIMEOUT, FD_RDONLY, ONE_ARG, 0 },
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{ "stlongtimeout", MTSETDRVBUFFER, do_drvbuffer, MT_ST_SET_LONG_TIMEOUT, FD_RDONLY, ONE_ARG, 0 },
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{ "densities", 0, print_densities, 0, NO_FD, NO_ARGS, 0 },
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{ "setpartition", MTSETPART, do_standard, 0, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "mkpartition", MTMKPART, do_standard, 0, FD_RDWR, ONE_ARG, ET_ONLINE },
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{ "partseek", 0, do_partseek, 0, FD_RDONLY, TWO_ARGS, ET_ONLINE },
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{ "asf", 0, do_asf, MTREW, FD_RDONLY, ONE_ARG, ET_ONLINE },
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{ "stshowoptions", 0, do_show_options, 0, FD_RDONLY, ONE_ARG, 0 },
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{ NULL, 0, 0, 0, NO_FD, NO_ARGS, 0 },
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/* clang-format on */
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};
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static struct densities {
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int code;
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char *name;
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} density_tbl[] = {
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/* clang-format off */
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/* Information taken from https://www.t10.org/ftp/x3t9.2/document.93/93-013r0.pdf:
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* NZRI: Non-Return to Zero, change on ones
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* GCR: Group Code Recording
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* PE: Phase Encoding
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* IMFM: Inverted Modified Frequency Modulation
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* MFM: Modified Frequency Modulation
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* DDS: DAT Data Storage
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* RLL: Run Length Limited
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*/
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{ 0x00, "default" },
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{ 0x01, "NRZI (800 bpi) 9 Track Reel" },
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{ 0x02, "PE (1600 bpi) 9 Track Reel" },
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{ 0x03, "GCR (6250 bpi) 9 Track Reel" },
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{ 0x04, "QIC-11" },
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{ 0x05, "QIC-45/60 (GCR, 8000 bpi)" },
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{ 0x06, "PE (3200 bpi) 9 Track Reel" },
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{ 0x07, "IMFM (6400 bpi)" },
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{ 0x08, "GCR (8000 bpi)" },
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{ 0x09, "3480/3490E, GCR (37871 bpi)" },
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{ 0x0a, "MFM (6667 bpi)" },
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{ 0x0b, "PE (1600 bpi)" },
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{ 0x0c, "GCR (12960 bpi)" },
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{ 0x0d, "GCR (25380 bpi)" },
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{ 0x0f, "QIC-120 (GCR 10000 bpi)" },
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{ 0x10, "QIC-150/250 (GCR 10000 bpi)" },
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{ 0x11, "QIC-320/525 (GCR 16000 bpi)" },
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{ 0x12, "QIC-1350 (RLL 51667 bpi)" },
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{ 0x13, "DDS (61000 bpi)" },
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{ 0x14, "EXB-8200 (RLL 43245 bpi)" },
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{ 0x15, "EXB-8500 or QIC-1000" },
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{ 0x16, "MFM 10000 bpi" },
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{ 0x17, "MFM 42500 bpi" },
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{ 0x18, "TZ86" },
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{ 0x19, "DLT 10GB" },
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{ 0x1a, "DLT 20GB" },
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{ 0x1b, "DLT 35GB" },
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{ 0x1c, "QIC-385M" },
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{ 0x1d, "QIC-410M" },
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{ 0x1e, "QIC-1000C" },
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{ 0x1f, "QIC-2100C" },
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{ 0x20, "QIC-6GB" },
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{ 0x21, "QIC-20GB" },
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{ 0x22, "QIC-2GB" },
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{ 0x23, "QIC-875" },
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{ 0x24, "DDS-2" },
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{ 0x25, "DDS-3" },
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{ 0x26, "DDS-4 or QIC-4GB" },
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{ 0x27, "Exabyte Mammoth" },
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{ 0x28, "Exabyte Mammoth-2" },
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{ 0x29, "QIC-3080MC, IBM 3590 B" },
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{ 0x2a, "IBM 3590 E" },
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{ 0x30, "AIT-1 or MLR3" },
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{ 0x31, "AIT-2" },
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{ 0x32, "AIT-3 or SLR7" },
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{ 0x33, "SLR6" },
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{ 0x34, "SLR100" },
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{ 0x40, "DLT1 40 GB, or Ultrium" },
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{ 0x41, "DLT 40GB, or Ultrium2" },
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{ 0x42, "LTO-2" },
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{ 0x44, "LTO-3" },
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{ 0x45, "QIC-3095-MC (TR-4)" },
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{ 0x46, "LTO-4" },
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{ 0x47, "DDS-5 or TR-5" },
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{ 0x48, "SDLT220" },
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{ 0x49, "SDLT320" },
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{ 0x4a, "SDLT600, T10000A" },
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{ 0x4b, "T10000B" },
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{ 0x4c, "T10000C" },
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{ 0x4d, "T10000D" },
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{ 0x51, "IBM 3592 J1A" },
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{ 0x52, "IBM 3592 E05 (TS1120)" },
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{ 0x53, "IBM 3592 E06 (TS1130)" },
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{ 0x54, "IBM 3592 E07 (TS1140)" },
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{ 0x55, "IBM 3592 E08 (TS1150)" },
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{ 0x56, "IBM 3592 55F (TS1155)" },
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{ 0x57, "IBM 3592 60F (TS1160)" },
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{ 0x58, "LTO-5" },
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{ 0x59, "IBM 3592 70F (TS1170)" },
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{ 0x5a, "LTO-6" },
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{ 0x5c, "LTO-7" },
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{ 0x5d, "LTO-7-M8" },
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{ 0x5e, "LTO-8" },
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{ 0x60, "LTO-9" },
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{ 0x71, "IBM 3592 J1A, encrypted" },
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{ 0x72, "IBM 3592 E05, encrypted" },
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{ 0x73, "IBM 3592 E06, encrypted" },
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{ 0x74, "IBM 3592 E07, encrypted" },
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{ 0x75, "IBM 3592 E08, encrypted" },
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{ 0x76, "IBM 3592 55F, encrypted" },
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{ 0x77, "IBM 3592 60F, encrypted" },
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{ 0x79, "IBM 3592 70F, encrypted" },
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{ 0x80, "DLT 15GB uncomp. or Ecrix" },
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{ 0x81, "DLT 15GB compressed" },
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{ 0x82, "DLT 20GB uncompressed" },
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{ 0x83, "DLT 20GB compressed" },
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{ 0x84, "DLT 35GB uncompressed" },
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{ 0x85, "DLT 35GB compressed" },
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{ 0x86, "DLT1 40 GB uncompressed" },
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{ 0x87, "DLT1 40 GB compressed" },
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{ 0x88, "DLT 40GB uncompressed" },
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{ 0x89, "DLT 40GB compressed" },
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{ 0x8c, "EXB-8505 compressed" },
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{ 0x90, "SDLT110 uncompr/EXB-8205 compr" },
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{ 0x91, "SDLT110 compressed" },
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{ 0x92, "SDLT160 uncompressed" },
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{ 0x93, "SDLT160 compressed" }
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/* clang-format on */
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};
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#define NBR_DENSITIES (sizeof(density_tbl) / sizeof(struct densities))
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static struct booleans {
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char *name;
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unsigned long bitmask;
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char *expl;
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} boolean_tbl[] = {
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/* clang-format off */
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{ "buffer-writes", MT_ST_BUFFER_WRITES, "buffered writes" },
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{ "async-writes", MT_ST_ASYNC_WRITES, "asynchronous writes" },
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{ "read-ahead", MT_ST_READ_AHEAD, "read-ahead for fixed block size" },
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{ "debug", MT_ST_DEBUGGING, "debugging (if compiled into driver)" },
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{ "two-fms", MT_ST_TWO_FM, "write two filemarks when file closed" },
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{ "fast-eod", MT_ST_FAST_MTEOM, "space directly to eod (and lose file number)" },
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{ "auto-lock", MT_ST_AUTO_LOCK, "automatically lock/unlock drive door" },
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{ "def-writes", MT_ST_DEF_WRITES, "the block size and density are for writes" },
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{ "can-bsr", MT_ST_CAN_BSR, "drive can space backwards well" },
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{ "no-blklimits", MT_ST_NO_BLKLIMS, "drive doesn't support read block limits" },
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{ "can-partitions", MT_ST_CAN_PARTITIONS, "drive can handle partitioned tapes" },
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{ "scsi2logical", MT_ST_SCSI2LOGICAL, "logical block addresses used with SCSI-2" },
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{ "no-wait", MT_ST_NOWAIT, "immediate mode for rewind, etc." },
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{ "weof-no-wait", MT_ST_NOWAIT_EOF, "immediate mode for writing filemarks" },
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#ifdef MT_ST_SYSV
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{ "sysv", MT_ST_SYSV, "enable the SystemV semantics" },
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#endif
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{ "sili", MT_ST_SILI, "enable SILI for variable block mode" },
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{ "cleaning", MT_ST_SET_CLN, "set the cleaning bit location and mask" },
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{ NULL, 0, NULL }
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/* clang-format on */
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};
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static char *tape_name; /* The tape name for messages */
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int main(int argc, char **argv)
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{
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int mtfd, i, argn, oflags;
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unsigned int len;
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char *cmdstr;
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cmdef_tr *comp, *comp2;
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for (argn = 1; argn < argc; argn++)
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if (*argv[argn] == '-')
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switch (*(argv[argn] + 1)) {
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case 'f':
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case 't':
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argn += 1;
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if (argn >= argc) {
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usage(0, 1);
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}
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tape_name = argv[argn];
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break;
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case 'h':
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usage(1, 0);
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break;
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case 'v':
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version();
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break;
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case '-':
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if (*(argv[argn] + 1) == '-' && *(argv[argn] + 2) == 'v') {
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version();
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}
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/* Fall through */
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default:
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usage(0, 1);
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}
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else
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break;
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if (tape_name == NULL && (tape_name = getenv("TAPE")) == NULL) {
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struct stat stbuf;
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tape_name = DEFTAPE;
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if (!stat(tape_name, &stbuf) && !S_ISCHR(stbuf.st_mode)) {
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fprintf(stderr, "The default '%s' is not a character device.\n\n", tape_name);
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usage(1, 1);
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}
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}
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if (argn >= argc) {
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usage(0, 1);
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}
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cmdstr = argv[argn++];
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len = strlen(cmdstr);
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for (comp = cmds; comp->cmd_name != NULL; comp++)
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if (strncmp(cmdstr, comp->cmd_name, len) == 0)
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break;
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if (comp->cmd_name == NULL) {
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fprintf(stderr, "mt: unknown command \"%s\"\n", cmdstr);
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usage(1, 1);
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}
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if (len != strlen(comp->cmd_name)) {
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for (comp2 = comp + 1; comp2->cmd_name != NULL; comp2++)
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if (strncmp(cmdstr, comp2->cmd_name, len) == 0)
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break;
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if (comp2->cmd_name != NULL) {
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fprintf(stderr, "mt: ambiguous command \"%s\"\n", cmdstr);
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usage(1, 1);
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}
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}
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if (comp->arg_cnt != MANY_ARGS && comp->arg_cnt < argc - argn) {
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fprintf(stderr, "mt: too many arguments for the command '%s'.\n", comp->cmd_name);
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exit(1);
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}
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if (comp->cmd_fdtype != NO_FD) {
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oflags = comp->cmd_fdtype == FD_RDONLY ? O_RDONLY : O_RDWR;
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if ((comp->error_tests & ET_ONLINE) == 0)
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oflags |= O_NONBLOCK;
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if ((mtfd = open(tape_name, oflags)) < 0) {
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perror(tape_name);
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exit(1);
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}
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} else
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mtfd = (-1);
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if (comp->cmd_function != NULL) {
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i = comp->cmd_function(mtfd, comp, argc - argn,
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(argc - argn > 0 ? argv + argn : NULL));
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if (i) {
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if (errno == ENOSYS)
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fprintf(stderr, "mt: Command not supported by this kernel.\n");
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else if (comp->error_tests != 0)
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test_error(mtfd, comp);
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}
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} else {
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fprintf(stderr, "mt: Internal error: command without function.\n");
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i = 1;
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}
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if (mtfd >= 0)
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close(mtfd);
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return i;
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}
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static void version()
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{
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printf("mt-st v. %s\n", VERSION);
|
|
printf("default tape device: %s\n", DEFTAPE);
|
|
exit(0);
|
|
}
|
|
|
|
static void usage(int explain, int exit_code)
|
|
{
|
|
int ind;
|
|
int counter = 0;
|
|
|
|
fprintf(stderr, "usage: mt [-v] [--version] [-h] [ -f device ] command [ "
|
|
"count ]\n");
|
|
fprintf(stderr, "default tape device: %s\n", DEFTAPE);
|
|
if (explain) {
|
|
for (ind = 0; cmds[ind].cmd_name != NULL;) {
|
|
if (ind == 0)
|
|
counter = fprintf(stderr, "commands: ");
|
|
else
|
|
counter = fprintf(stderr, " ");
|
|
for (; cmds[ind].cmd_name != NULL; ind++) {
|
|
counter += fprintf(stderr, "%s", cmds[ind].cmd_name);
|
|
if (cmds[ind + 1].cmd_name != NULL)
|
|
counter += fprintf(stderr, ", ");
|
|
else
|
|
counter += fprintf(stderr, ".");
|
|
if (counter >= 70 || cmds[ind + 1].cmd_name == NULL) {
|
|
fprintf(stderr, "\n");
|
|
ind++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
exit(exit_code);
|
|
}
|
|
|
|
|
|
/* Do a command that simply feeds an argument to the MTIOCTOP ioctl */
|
|
static int do_standard(int mtfd, cmdef_tr *cmd, int argc, char **argv)
|
|
{
|
|
int multiplier, max_count;
|
|
struct mtop mt_com;
|
|
char *endp;
|
|
|
|
mt_com.mt_op = cmd->cmd_code;
|
|
mt_com.mt_count = (argc > 0 ? strtol(*argv, &endp, 0) : 1);
|
|
if (argc > 0 && endp != *argv) {
|
|
multiplier = 1;
|
|
if (*endp == 'k')
|
|
multiplier = 1024;
|
|
else if (*endp == 'M')
|
|
multiplier = 1024 * 1024;
|
|
else if (*endp == 'G')
|
|
multiplier = 1024 * 1024 * 1024;
|
|
else if (*endp != 0) {
|
|
fprintf(stderr, "mt: illegal count unit.\n");
|
|
return 3;
|
|
}
|
|
max_count = INT_MAX / multiplier;
|
|
if (abs(mt_com.mt_count) > max_count) {
|
|
fprintf(stderr, "mt: repeat count too large.\n");
|
|
return 3;
|
|
}
|
|
mt_com.mt_count *= multiplier;
|
|
}
|
|
mt_com.mt_count |= cmd->cmd_count_bits;
|
|
if (mt_com.mt_op != MTMKPART && mt_com.mt_count < 0) {
|
|
fprintf(stderr, "mt: negative repeat count\n");
|
|
return 1;
|
|
}
|
|
if (ioctl(mtfd, MTIOCTOP, (char *)&mt_com) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* The the drive buffering and other things with this (highly overloaded)
|
|
ioctl function. (See also do_options below.) */
|
|
static int do_drvbuffer(int mtfd, cmdef_tr *cmd, int argc, char **argv)
|
|
{
|
|
struct mtop mt_com;
|
|
|
|
mt_com.mt_op = MTSETDRVBUFFER;
|
|
mt_com.mt_count = (argc > 0 ? strtol(*argv, NULL, 0) : 1);
|
|
if ((cmd->cmd_count_bits & MT_ST_OPTIONS) == MT_ST_DEF_OPTIONS)
|
|
mt_com.mt_count &= 0xfffff;
|
|
#ifdef MT_ST_TIMEOUTS
|
|
else if ((cmd->cmd_count_bits & MT_ST_OPTIONS) == MT_ST_TIMEOUTS)
|
|
mt_com.mt_count &= 0x7ffffff;
|
|
#endif
|
|
else
|
|
mt_com.mt_count &= 0xfffffff;
|
|
mt_com.mt_count |= cmd->cmd_count_bits;
|
|
if (ioctl(mtfd, MTIOCTOP, (char *)&mt_com) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Set the tape driver options */
|
|
static int do_options(int mtfd, cmdef_tr *cmd, int argc, char **argv)
|
|
{
|
|
int i, an;
|
|
unsigned int len;
|
|
struct mtop mt_com;
|
|
|
|
mt_com.mt_op = MTSETDRVBUFFER;
|
|
if (argc == 0)
|
|
mt_com.mt_count = 0;
|
|
else if (isdigit(**argv))
|
|
mt_com.mt_count = strtol(*argv, NULL, 0) & ~MT_ST_OPTIONS;
|
|
else
|
|
for (an = 0, mt_com.mt_count = 0; an < argc; an++) {
|
|
len = strlen(argv[an]);
|
|
for (i = 0; boolean_tbl[i].name != NULL; i++)
|
|
if (!strncmp(boolean_tbl[i].name, argv[an], len)) {
|
|
mt_com.mt_count |= boolean_tbl[i].bitmask;
|
|
break;
|
|
}
|
|
if (boolean_tbl[i].name == NULL) {
|
|
fprintf(stderr, "Illegal property name '%s'.\n", argv[an]);
|
|
fprintf(stderr, "The implemented property names are:\n");
|
|
for (i = 0; boolean_tbl[i].name != NULL; i++)
|
|
fprintf(stderr, " %9s -> %s\n", boolean_tbl[i].name,
|
|
boolean_tbl[i].expl);
|
|
return 1;
|
|
}
|
|
if (len != strlen(boolean_tbl[i].name))
|
|
for (i++; boolean_tbl[i].name != NULL; i++)
|
|
if (!strncmp(boolean_tbl[i].name, argv[an], len)) {
|
|
fprintf(stderr, "Property name '%s' ambiguous.\n", argv[an]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
switch (cmd->cmd_code) {
|
|
case DO_BOOLEANS:
|
|
mt_com.mt_count |= MT_ST_BOOLEANS;
|
|
break;
|
|
case SET_BOOLEANS:
|
|
mt_com.mt_count |= MT_ST_SETBOOLEANS;
|
|
break;
|
|
case CLEAR_BOOLEANS:
|
|
mt_com.mt_count |= MT_ST_CLEARBOOLEANS;
|
|
break;
|
|
}
|
|
if (ioctl(mtfd, MTIOCTOP, (char *)&mt_com) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Tell where the tape is */
|
|
static int do_tell(int mtfd,
|
|
cmdef_tr *cmd __attribute__((unused)),
|
|
int argc __attribute__((unused)),
|
|
char **argv __attribute__((unused)))
|
|
{
|
|
struct mtpos mt_pos;
|
|
|
|
if (ioctl(mtfd, MTIOCPOS, (char *)&mt_pos) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
printf("At block %ld.\n", mt_pos.mt_blkno);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Position the tape to a specific location within a specified partition */
|
|
static int do_partseek(int mtfd, cmdef_tr *cmd __attribute__((unused)), int argc, char **argv)
|
|
{
|
|
struct mtop mt_com;
|
|
|
|
mt_com.mt_op = MTSETPART;
|
|
mt_com.mt_count = (argc > 0 ? strtol(*argv, NULL, 0) : 0);
|
|
if (ioctl(mtfd, MTIOCTOP, (char *)&mt_com) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
mt_com.mt_op = MTSEEK;
|
|
mt_com.mt_count = (argc > 1 ? strtol(argv[1], NULL, 0) : 0);
|
|
if (ioctl(mtfd, MTIOCTOP, (char *)&mt_com) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Position to start of file n. This might be implemented more intelligently
|
|
some day. */
|
|
static int do_asf(int mtfd, cmdef_tr *cmd __attribute__((unused)), int argc, char **argv)
|
|
{
|
|
struct mtop mt_com;
|
|
|
|
mt_com.mt_op = MTREW;
|
|
mt_com.mt_count = 1;
|
|
if (ioctl(mtfd, MTIOCTOP, (char *)&mt_com) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
mt_com.mt_count = (argc > 0 ? strtol(*argv, NULL, 0) : 0);
|
|
if (mt_com.mt_count > 0) {
|
|
mt_com.mt_op = MTFSF;
|
|
if (ioctl(mtfd, MTIOCTOP, (char *)&mt_com) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*** Decipher the status ***/
|
|
|
|
static int do_status(int mtfd,
|
|
cmdef_tr *cmd __attribute__((unused)),
|
|
int argc __attribute__((unused)),
|
|
char **argv __attribute__((unused)))
|
|
{
|
|
struct mtget status;
|
|
int dens;
|
|
unsigned int i;
|
|
char *type, *density;
|
|
|
|
if (ioctl(mtfd, MTIOCGET, (char *)&status) < 0) {
|
|
perror(tape_name);
|
|
return 2;
|
|
}
|
|
|
|
if (status.mt_type == MT_ISSCSI1)
|
|
type = "SCSI 1";
|
|
else if (status.mt_type == MT_ISSCSI2)
|
|
type = "SCSI 2";
|
|
else if (status.mt_type == MT_ISONSTREAM_SC)
|
|
type = "OnStream SC-, DI-, DP-, or USB";
|
|
else
|
|
type = NULL;
|
|
if (type == NULL) {
|
|
if (status.mt_type & 0x800000)
|
|
printf("qic-117 drive type = 0x%05lx\n", status.mt_type & 0x1ffff);
|
|
else if (status.mt_type == 0)
|
|
printf("IDE-Tape (type code 0) ?\n");
|
|
else
|
|
printf("Unknown tape drive type (type code %ld)\n", status.mt_type);
|
|
printf("File number=%d, block number=%d.\n", status.mt_fileno, status.mt_blkno);
|
|
printf("mt_resid: %ld, mt_erreg: 0x%lx\n", status.mt_resid, status.mt_erreg);
|
|
printf("mt_dsreg: 0x%lx, mt_gstat: 0x%lx\n", status.mt_dsreg, status.mt_gstat);
|
|
} else {
|
|
printf("%s tape drive:\n", type);
|
|
if (status.mt_type == MT_ISSCSI2)
|
|
printf("File number=%d, block number=%d, partition=%ld.\n",
|
|
status.mt_fileno, status.mt_blkno, (status.mt_resid & 0xff));
|
|
else
|
|
printf("File number=%d, block number=%d.\n", status.mt_fileno,
|
|
status.mt_blkno);
|
|
if (status.mt_type == MT_ISSCSI1 || status.mt_type == MT_ISSCSI2 ||
|
|
status.mt_type == MT_ISONSTREAM_SC) {
|
|
dens = (status.mt_dsreg & MT_ST_DENSITY_MASK) >> MT_ST_DENSITY_SHIFT;
|
|
density = "no translation";
|
|
for (i = 0; i < NBR_DENSITIES; i++)
|
|
if (density_tbl[i].code == dens) {
|
|
density = density_tbl[i].name;
|
|
break;
|
|
}
|
|
printf("Tape block size %ld bytes. Density code 0x%x (%s).\n",
|
|
((status.mt_dsreg & MT_ST_BLKSIZE_MASK) >> MT_ST_BLKSIZE_SHIFT),
|
|
dens, density);
|
|
|
|
printf("Soft error count since last status=%ld\n",
|
|
(status.mt_erreg & MT_ST_SOFTERR_MASK) >> MT_ST_SOFTERR_SHIFT);
|
|
}
|
|
}
|
|
|
|
printf("General status bits on (%lx):\n", status.mt_gstat);
|
|
if (GMT_EOF(status.mt_gstat))
|
|
printf(" EOF");
|
|
if (GMT_BOT(status.mt_gstat))
|
|
printf(" BOT");
|
|
if (GMT_EOT(status.mt_gstat))
|
|
printf(" EOT");
|
|
if (GMT_SM(status.mt_gstat))
|
|
printf(" SM");
|
|
if (GMT_EOD(status.mt_gstat))
|
|
printf(" EOD");
|
|
if (GMT_WR_PROT(status.mt_gstat))
|
|
printf(" WR_PROT");
|
|
if (GMT_ONLINE(status.mt_gstat))
|
|
printf(" ONLINE");
|
|
if (GMT_D_6250(status.mt_gstat))
|
|
printf(" D_6250");
|
|
if (GMT_D_1600(status.mt_gstat))
|
|
printf(" D_1600");
|
|
if (GMT_D_800(status.mt_gstat))
|
|
printf(" D_800");
|
|
if (GMT_DR_OPEN(status.mt_gstat))
|
|
printf(" DR_OPEN");
|
|
if (GMT_IM_REP_EN(status.mt_gstat))
|
|
printf(" IM_REP_EN");
|
|
if (GMT_CLN(status.mt_gstat))
|
|
printf(" CLN");
|
|
printf("\n");
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* From linux/drivers/scsi/st.[ch] */
|
|
#define ST_NBR_MODE_BITS 2
|
|
#define ST_NBR_MODES (1 << ST_NBR_MODE_BITS)
|
|
#define ST_MODE_SHIFT (7 - ST_NBR_MODE_BITS)
|
|
#define ST_MODE_MASK ((ST_NBR_MODES - 1) << ST_MODE_SHIFT)
|
|
#define TAPE_NR(minor) \
|
|
((((minor) & ~255) >> (ST_NBR_MODE_BITS + 1)) | \
|
|
((minor) & ((1 << ST_MODE_SHIFT) - 1)))
|
|
#define TAPE_MODE(minor) (((minor) & ST_MODE_MASK) >> ST_MODE_SHIFT)
|
|
static const char *st_formats[] = { "", "r", "k", "s", "l", "t", "o", "u",
|
|
"m", "v", "p", "x", "a", "y", "q", "z" };
|
|
|
|
/* Show the options if visible in sysfs */
|
|
static int do_show_options(int mtfd,
|
|
cmdef_tr *cmd __attribute__((unused)),
|
|
int argc __attribute__((unused)),
|
|
char **argv __attribute__((unused)))
|
|
{
|
|
int i, fd, options, tapeminor, tapeno, tapemode;
|
|
struct stat stat;
|
|
char fname[100], buf[20];
|
|
|
|
if (fstat(mtfd, &stat) < 0) {
|
|
perror(tape_name);
|
|
return 1;
|
|
}
|
|
|
|
if (!(stat.st_mode & S_IFCHR)) {
|
|
fprintf(stderr, "mt: not a character device.\n");
|
|
return 1;
|
|
}
|
|
|
|
tapeminor = minor(stat.st_rdev);
|
|
tapeno = TAPE_NR(tapeminor);
|
|
tapemode = TAPE_MODE(tapeminor);
|
|
tapemode <<= 4 - ST_NBR_MODE_BITS; /* from st.c */
|
|
sprintf(fname, "/sys/class/scsi_tape/st%d%s/options", tapeno, st_formats[tapemode]);
|
|
/* printf("Trying file '%s' (st_rdev 0x%lx).\n", fname, stat.st_rdev); */
|
|
|
|
if ((fd = open(fname, O_RDONLY)) < 0 || read(fd, buf, 20) < 0) {
|
|
fprintf(stderr, "Can't read the sysfs file '%s'.\n", fname);
|
|
if (fd >= 0)
|
|
close(fd);
|
|
return 2;
|
|
}
|
|
close(fd);
|
|
|
|
options = strtol(buf, NULL, 0);
|
|
|
|
printf("The options set:");
|
|
for (i = 0; boolean_tbl[i].name != NULL; i++)
|
|
if (options & boolean_tbl[i].bitmask)
|
|
printf(" %s", boolean_tbl[i].name);
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Print a list of possible density codes */
|
|
static int print_densities(int fd __attribute__((unused)),
|
|
cmdef_tr *cmd __attribute__((unused)),
|
|
int argc __attribute__((unused)),
|
|
char **argv __attribute__((unused)))
|
|
{
|
|
unsigned int i, offset;
|
|
|
|
printf("Some SCSI tape density codes:\ncode explanation "
|
|
" code explanation\n");
|
|
offset = (NBR_DENSITIES + 1) / 2;
|
|
for (i = 0; i < offset; i++) {
|
|
printf("0x%02x %-28s", density_tbl[i].code, density_tbl[i].name);
|
|
if (i + offset < NBR_DENSITIES)
|
|
printf(" 0x%02x %s\n", density_tbl[i + offset].code,
|
|
density_tbl[i + offset].name);
|
|
else
|
|
printf("\n");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Try to find out why the command failed */
|
|
static void test_error(int mtfd, cmdef_tr *cmd)
|
|
{
|
|
struct mtget status;
|
|
|
|
if (ioctl(mtfd, MTIOCGET, (char *)&status) < 0)
|
|
return;
|
|
|
|
if (status.mt_type != MT_ISSCSI1 && status.mt_type != MT_ISSCSI2)
|
|
return;
|
|
|
|
if ((cmd->error_tests & ET_ONLINE) && !GMT_ONLINE(status.mt_gstat))
|
|
fprintf(stderr,
|
|
"mt: The device is offline (not powered on, no tape ?).\n");
|
|
if ((cmd->error_tests & ET_WPROT) && GMT_WR_PROT(status.mt_gstat))
|
|
fprintf(stderr, "mt: The tape is write-protected.\n");
|
|
}
|