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freebsd/usr.bin/mt/mt.c
Baptiste Daroussin b6f4a0a1c7 Remove uneeded sbuf header
2015-04-09 21:23:27 +00:00

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/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*-
* Copyright (c) 2013, 2014, 2015 Spectra Logic Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* Authors: Ken Merry (Spectra Logic Corporation)
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1980, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)mt.c 8.2 (Berkeley) 5/4/95";
#endif
#endif /* not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* mt --
* magnetic tape manipulation program
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/mtio.h>
#include <sys/queue.h>
#include <ctype.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include <errno.h>
#include <bsdxml.h>
#include <mtlib.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_periph.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_sa.h>
/* the appropriate sections of <sys/mtio.h> are also #ifdef'd for FreeBSD */
/* c_flags */
#define NEED_2ARGS 0x01
#define ZERO_ALLOWED 0x02
#define IS_DENSITY 0x04
#define DISABLE_THIS 0x08
#define IS_COMP 0x10
#define USE_GETOPT 0x20
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef MAX
#define MAX(a, b) (a > b) ? a : b
#endif
#define MT_PLURAL(a) (a == 1) ? "" : "s"
typedef enum {
MT_CMD_NONE = MTLOAD + 1,
MT_CMD_PROTECT,
MT_CMD_GETDENSITY
} mt_commands;
static const struct commands {
const char *c_name;
unsigned long c_code;
int c_ronly;
int c_flags;
} com[] = {
{ "bsf", MTBSF, 1, 0 },
{ "bsr", MTBSR, 1, 0 },
/* XXX FreeBSD considered "eof" dangerous, since it's being
confused with "eom" (and is an alias for "weof" anyway) */
{ "eof", MTWEOF, 0, DISABLE_THIS },
{ "fsf", MTFSF, 1, 0 },
{ "fsr", MTFSR, 1, 0 },
{ "offline", MTOFFL, 1, 0 },
{ "load", MTLOAD, 1, 0 },
{ "rewind", MTREW, 1, 0 },
{ "rewoffl", MTOFFL, 1, 0 },
{ "ostatus", MTNOP, 1, 0 },
{ "weof", MTWEOF, 0, ZERO_ALLOWED },
{ "weofi", MTWEOFI, 0, ZERO_ALLOWED },
{ "erase", MTERASE, 0, ZERO_ALLOWED},
{ "blocksize", MTSETBSIZ, 0, NEED_2ARGS|ZERO_ALLOWED },
{ "density", MTSETDNSTY, 0, NEED_2ARGS|ZERO_ALLOWED|IS_DENSITY },
{ "eom", MTEOD, 1, 0 },
{ "eod", MTEOD, 1, 0 },
{ "smk", MTWSS, 0, 0 },
{ "wss", MTWSS, 0, 0 },
{ "fss", MTFSS, 1, 0 },
{ "bss", MTBSS, 1, 0 },
{ "comp", MTCOMP, 0, NEED_2ARGS|ZERO_ALLOWED|IS_COMP },
{ "retension", MTRETENS, 1, 0 },
{ "rdhpos", MTIOCRDHPOS, 0, 0 },
{ "rdspos", MTIOCRDSPOS, 0, 0 },
{ "sethpos", MTIOCHLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
{ "setspos", MTIOCSLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
{ "errstat", MTIOCERRSTAT, 0, 0 },
{ "setmodel", MTIOCSETEOTMODEL, 0, NEED_2ARGS|ZERO_ALLOWED },
{ "seteotmodel", MTIOCSETEOTMODEL, 0, NEED_2ARGS|ZERO_ALLOWED },
{ "getmodel", MTIOCGETEOTMODEL, 0, 0 },
{ "geteotmodel", MTIOCGETEOTMODEL, 0, 0 },
{ "rblim", MTIOCRBLIM, 0, 0},
{ "getdensity", MT_CMD_GETDENSITY, 0, USE_GETOPT},
{ "status", MTIOCEXTGET, 0, USE_GETOPT },
{ "locate", MTIOCEXTLOCATE, 0, USE_GETOPT },
{ "param", MTIOCPARAMGET, 0, USE_GETOPT },
{ "protect", MT_CMD_PROTECT, 0, USE_GETOPT },
{ NULL, 0, 0, 0 }
};
static const char *getblksiz(int);
static void printreg(const char *, u_int, const char *);
static void status(struct mtget *);
static void usage(void);
const char *get_driver_state_str(int dsreg);
static void st_status (struct mtget *);
static int mt_locate(int argc, char **argv, int mtfd, const char *tape);
static int nstatus_print(int argc, char **argv, char *xml_str,
struct mt_status_data *status_data);
static int mt_xml_cmd(unsigned long cmd, int argc, char **argv, int mtfd,
const char *tape);
static int mt_print_density_entry(struct mt_status_entry *density_root, int indent);
static int mt_print_density_report(struct mt_status_entry *report_root, int indent);
static int mt_print_density(struct mt_status_entry *density_root, int indent);
static int mt_getdensity(int argc, char **argv, char *xml_str,
struct mt_status_data *status_data);
static int mt_set_param(int mtfd, struct mt_status_data *status_data,
char *param_name, char *param_value);
static int mt_protect(int argc, char **argv, int mtfd,
struct mt_status_data *status_data);
static int mt_param(int argc, char **argv, int mtfd, char *xml_str,
struct mt_status_data *status_data);
static const char *denstostring (int d);
static u_int32_t stringtocomp(const char *s);
static const char *comptostring(u_int32_t comp);
static void warn_eof(void);
int
main(int argc, char *argv[])
{
const struct commands *comp;
struct mtget mt_status;
struct mtop mt_com;
int ch, len, mtfd;
const char *p, *tape;
bzero(&mt_com, sizeof(mt_com));
if ((tape = getenv("TAPE")) == NULL)
tape = DEFTAPE;
while ((ch = getopt(argc, argv, "f:t:")) != -1)
switch(ch) {
case 'f':
case 't':
tape = optarg;
break;
case '?':
usage();
break;
default:
break;
}
argc -= optind;
argv += optind;
if (argc < 1)
usage();
len = strlen(p = *argv++);
for (comp = com;; comp++) {
if (comp->c_name == NULL)
errx(1, "%s: unknown command", p);
if (strncmp(p, comp->c_name, len) == 0)
break;
}
if((comp->c_flags & NEED_2ARGS) && argc != 2)
usage();
if(comp->c_flags & DISABLE_THIS) {
warn_eof();
}
if (comp->c_flags & USE_GETOPT) {
argc--;
optind = 0;
}
if ((mtfd = open(tape, comp->c_ronly ? O_RDONLY : O_RDWR)) < 0)
err(1, "%s", tape);
if (comp->c_code != MTNOP) {
mt_com.mt_op = comp->c_code;
if (*argv) {
if (!isdigit(**argv) &&
(comp->c_flags & IS_DENSITY)) {
const char *dcanon;
mt_com.mt_count = mt_density_num(*argv);
if (mt_com.mt_count == 0)
errx(1, "%s: unknown density", *argv);
dcanon = denstostring(mt_com.mt_count);
if (strcmp(dcanon, *argv) != 0)
printf(
"Using \"%s\" as an alias for %s\n",
*argv, dcanon);
p = "";
} else if (!isdigit(**argv) &&
(comp->c_flags & IS_COMP)) {
mt_com.mt_count = stringtocomp(*argv);
if ((u_int32_t)mt_com.mt_count == 0xf0f0f0f0)
errx(1, "%s: unknown compression",
*argv);
p = "";
} else if ((comp->c_flags & USE_GETOPT) == 0) {
char *q;
/* allow for hex numbers; useful for density */
mt_com.mt_count = strtol(*argv, &q, 0);
p = q;
}
if (((comp->c_flags & USE_GETOPT) == 0)
&& (((mt_com.mt_count <=
((comp->c_flags & ZERO_ALLOWED)? -1: 0))
&& ((comp->c_flags & IS_COMP) == 0))
|| *p))
errx(1, "%s: illegal count", *argv);
}
else
mt_com.mt_count = 1;
switch (comp->c_code) {
case MTIOCERRSTAT:
{
unsigned int i;
union mterrstat umn;
struct scsi_tape_errors *s = &umn.scsi_errstat;
if (ioctl(mtfd, comp->c_code, (caddr_t)&umn) < 0)
err(2, "%s", tape);
(void)printf("Last I/O Residual: %u\n", s->io_resid);
(void)printf(" Last I/O Command:");
for (i = 0; i < sizeof (s->io_cdb); i++)
(void)printf(" %02X", s->io_cdb[i]);
(void)printf("\n");
(void)printf(" Last I/O Sense:\n\n\t");
for (i = 0; i < sizeof (s->io_sense); i++) {
(void)printf(" %02X", s->io_sense[i]);
if (((i + 1) & 0xf) == 0) {
(void)printf("\n\t");
}
}
(void)printf("\n");
(void)printf("Last Control Residual: %u\n",
s->ctl_resid);
(void)printf(" Last Control Command:");
for (i = 0; i < sizeof (s->ctl_cdb); i++)
(void)printf(" %02X", s->ctl_cdb[i]);
(void)printf("\n");
(void)printf(" Last Control Sense:\n\n\t");
for (i = 0; i < sizeof (s->ctl_sense); i++) {
(void)printf(" %02X", s->ctl_sense[i]);
if (((i + 1) & 0xf) == 0) {
(void)printf("\n\t");
}
}
(void)printf("\n\n");
exit(0);
/* NOTREACHED */
}
case MTIOCRDHPOS:
case MTIOCRDSPOS:
{
u_int32_t block;
if (ioctl(mtfd, comp->c_code, (caddr_t)&block) < 0)
err(2, "%s", tape);
(void)printf("%s: %s block location %u\n", tape,
(comp->c_code == MTIOCRDHPOS)? "hardware" :
"logical", block);
exit(0);
/* NOTREACHED */
}
case MTIOCSLOCATE:
case MTIOCHLOCATE:
{
u_int32_t block = (u_int32_t)mt_com.mt_count;
if (ioctl(mtfd, comp->c_code, (caddr_t)&block) < 0)
err(2, "%s", tape);
exit(0);
/* NOTREACHED */
}
case MTIOCGETEOTMODEL:
{
u_int32_t om;
if (ioctl(mtfd, MTIOCGETEOTMODEL, (caddr_t)&om) < 0)
err(2, "%s", tape);
(void)printf("%s: the model is %u filemar%s at EOT\n",
tape, om, (om > 1)? "ks" : "k");
exit(0);
/* NOTREACHED */
}
case MTIOCSETEOTMODEL:
{
u_int32_t om, nm = (u_int32_t)mt_com.mt_count;
if (ioctl(mtfd, MTIOCGETEOTMODEL, (caddr_t)&om) < 0)
err(2, "%s", tape);
if (ioctl(mtfd, comp->c_code, (caddr_t)&nm) < 0)
err(2, "%s", tape);
(void)printf("%s: old model was %u filemar%s at EOT\n",
tape, om, (om > 1)? "ks" : "k");
(void)printf("%s: new model is %u filemar%s at EOT\n",
tape, nm, (nm > 1)? "ks" : "k");
exit(0);
/* NOTREACHED */
}
case MTIOCRBLIM:
{
struct mtrblim rblim;
bzero(&rblim, sizeof(rblim));
if (ioctl(mtfd, MTIOCRBLIM, (caddr_t)&rblim) < 0)
err(2, "%s", tape);
(void)printf("%s:\n"
" min blocksize %u byte%s\n"
" max blocksize %u byte%s\n"
" granularity %u byte%s\n",
tape, rblim.min_block_length,
MT_PLURAL(rblim.min_block_length),
rblim.max_block_length,
MT_PLURAL(rblim.max_block_length),
(1 << rblim.granularity),
MT_PLURAL((1 << rblim.granularity)));
exit(0);
/* NOTREACHED */
}
case MTIOCPARAMGET:
case MTIOCEXTGET:
case MT_CMD_PROTECT:
case MT_CMD_GETDENSITY:
{
int retval = 0;
retval = mt_xml_cmd(comp->c_code, argc, argv, mtfd,
tape);
exit(retval);
}
case MTIOCEXTLOCATE:
{
int retval = 0;
retval = mt_locate(argc, argv, mtfd, tape);
exit(retval);
}
default:
break;
}
if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0)
err(1, "%s: %s", tape, comp->c_name);
} else {
if (ioctl(mtfd, MTIOCGET, &mt_status) < 0)
err(1, NULL);
status(&mt_status);
}
exit(0);
/* NOTREACHED */
}
static const struct tape_desc {
short t_type; /* type of magtape device */
const char *t_name; /* printing name */
const char *t_dsbits; /* "drive status" register */
const char *t_erbits; /* "error" register */
} tapes[] = {
{ MT_ISAR, "SCSI tape drive", 0, 0 },
{ 0, NULL, 0, 0 }
};
/*
* Interpret the status buffer returned
*/
static void
status(struct mtget *bp)
{
const struct tape_desc *mt;
for (mt = tapes;; mt++) {
if (mt->t_type == 0) {
(void)printf("%d: unknown tape drive type\n",
bp->mt_type);
return;
}
if (mt->t_type == bp->mt_type)
break;
}
if(mt->t_type == MT_ISAR)
st_status(bp);
else {
(void)printf("%s tape drive, residual=%d\n",
mt->t_name, bp->mt_resid);
printreg("ds", (unsigned short)bp->mt_dsreg, mt->t_dsbits);
printreg("\ner", (unsigned short)bp->mt_erreg, mt->t_erbits);
(void)putchar('\n');
}
}
/*
* Print a register a la the %b format of the kernel's printf.
*/
static void
printreg(const char *s, u_int v, const char *bits)
{
int i, any = 0;
char c;
if (bits && *bits == 8)
printf("%s=%o", s, v);
else
printf("%s=%x", s, v);
if (!bits)
return;
bits++;
if (v && bits) {
putchar('<');
while ((i = *bits++)) {
if (v & (1 << (i-1))) {
if (any)
putchar(',');
any = 1;
for (; (c = *bits) > 32; bits++)
putchar(c);
} else
for (; *bits > 32; bits++)
;
}
putchar('>');
}
}
static void
usage(void)
{
(void)fprintf(stderr, "usage: mt [-f device] command [count]\n");
exit(1);
}
static const struct compression_types {
u_int32_t comp_number;
const char *name;
} comp_types[] = {
{ 0x00, "none" },
{ 0x00, "off" },
{ 0x10, "IDRC" },
{ 0x20, "DCLZ" },
{ 0xffffffff, "enable" },
{ 0xffffffff, "on" },
{ 0xf0f0f0f0, NULL}
};
static const char *
denstostring(int d)
{
static char buf[20];
const char *name = mt_density_name(d);
if (name == NULL)
sprintf(buf, "0x%02x", d);
else
sprintf(buf, "0x%02x:%s", d, name);
return buf;
}
static const char *
getblksiz(int bs)
{
static char buf[25];
if (bs == 0)
return "variable";
else {
sprintf(buf, "%d bytes", bs);
return buf;
}
}
static const char *
comptostring(u_int32_t comp)
{
static char buf[20];
const struct compression_types *ct;
if (comp == MT_COMP_DISABLED)
return "disabled";
else if (comp == MT_COMP_UNSUPP)
return "unsupported";
for (ct = comp_types; ct->name; ct++)
if (ct->comp_number == comp)
break;
if (ct->comp_number == 0xf0f0f0f0) {
sprintf(buf, "0x%x", comp);
return(buf);
} else
return(ct->name);
}
static u_int32_t
stringtocomp(const char *s)
{
const struct compression_types *ct;
size_t l = strlen(s);
for (ct = comp_types; ct->name; ct++)
if (strncasecmp(ct->name, s, l) == 0)
break;
return(ct->comp_number);
}
static struct driver_state {
int dsreg;
const char *desc;
} driver_states[] = {
{ MTIO_DSREG_REST, "at rest" },
{ MTIO_DSREG_RBSY, "Communicating with drive" },
{ MTIO_DSREG_WR, "Writing" },
{ MTIO_DSREG_FMK, "Writing Filemarks" },
{ MTIO_DSREG_ZER, "Erasing" },
{ MTIO_DSREG_RD, "Reading" },
{ MTIO_DSREG_FWD, "Spacing Forward" },
{ MTIO_DSREG_REV, "Spacing Reverse" },
{ MTIO_DSREG_POS, "Hardware Positioning (direction unknown)" },
{ MTIO_DSREG_REW, "Rewinding" },
{ MTIO_DSREG_TEN, "Retensioning" },
{ MTIO_DSREG_UNL, "Unloading" },
{ MTIO_DSREG_LD, "Loading" },
};
const char *
get_driver_state_str(int dsreg)
{
unsigned int i;
for (i = 0; i < (sizeof(driver_states)/sizeof(driver_states[0])); i++) {
if (driver_states[i].dsreg == dsreg)
return (driver_states[i].desc);
}
return (NULL);
}
static void
st_status(struct mtget *bp)
{
printf("Mode Density Blocksize bpi "
"Compression\n"
"Current: %-17s %-12s %-7d %s\n"
"---------available modes---------\n"
"0: %-17s %-12s %-7d %s\n"
"1: %-17s %-12s %-7d %s\n"
"2: %-17s %-12s %-7d %s\n"
"3: %-17s %-12s %-7d %s\n",
denstostring(bp->mt_density), getblksiz(bp->mt_blksiz),
mt_density_bp(bp->mt_density, TRUE), comptostring(bp->mt_comp),
denstostring(bp->mt_density0), getblksiz(bp->mt_blksiz0),
mt_density_bp(bp->mt_density0, TRUE), comptostring(bp->mt_comp0),
denstostring(bp->mt_density1), getblksiz(bp->mt_blksiz1),
mt_density_bp(bp->mt_density1, TRUE), comptostring(bp->mt_comp1),
denstostring(bp->mt_density2), getblksiz(bp->mt_blksiz2),
mt_density_bp(bp->mt_density2, TRUE), comptostring(bp->mt_comp2),
denstostring(bp->mt_density3), getblksiz(bp->mt_blksiz3),
mt_density_bp(bp->mt_density3, TRUE), comptostring(bp->mt_comp3));
if (bp->mt_dsreg != MTIO_DSREG_NIL) {
const char sfmt[] = "Current Driver State: %s.\n";
printf("---------------------------------\n");
const char *state_str;
state_str = get_driver_state_str(bp->mt_dsreg);
if (state_str == NULL) {
char foo[32];
(void) sprintf(foo, "Unknown state 0x%x", bp->mt_dsreg);
printf(sfmt, foo);
} else {
printf(sfmt, state_str);
}
}
if (bp->mt_resid == 0 && bp->mt_fileno == (daddr_t) -1 &&
bp->mt_blkno == (daddr_t) -1)
return;
printf("---------------------------------\n");
printf("File Number: %d\tRecord Number: %d\tResidual Count %d\n",
bp->mt_fileno, bp->mt_blkno, bp->mt_resid);
}
static int
mt_locate(int argc, char **argv, int mtfd, const char *tape)
{
struct mtlocate mtl;
uint64_t logical_id = 0;
mt_locate_dest_type dest_type = MT_LOCATE_DEST_FILE;
int eod = 0, explicit = 0, immediate = 0;
int64_t partition = 0;
int block_addr_set = 0, partition_set = 0, file_set = 0, set_set = 0;
int c, retval;
retval = 0;
bzero(&mtl, sizeof(mtl));
while ((c = getopt(argc, argv, "b:eEf:ip:s:")) != -1) {
switch (c) {
case 'b':
/* Block address */
logical_id = strtoull(optarg, NULL, 0);
dest_type = MT_LOCATE_DEST_OBJECT;
block_addr_set = 1;
break;
case 'e':
/* end of data */
eod = 1;
dest_type = MT_LOCATE_DEST_EOD;
break;
case 'E':
/*
* XXX KDM explicit address mode. Should we even
* allow this, since the driver doesn't operate in
* explicit address mode?
*/
explicit = 1;
break;
case 'f':
/* file number */
logical_id = strtoull(optarg, NULL, 0);
dest_type = MT_LOCATE_DEST_FILE;
file_set = 1;
break;
case 'i':
/*
* Immediate address mode. XXX KDM do we want to
* implement this? The other commands in the
* tape driver will need to be able to handle this.
*/
immediate = 1;
break;
case 'p':
/*
* Change partition to the given partition.
*/
partition = strtol(optarg, NULL, 0);
partition_set = 1;
break;
case 's':
/* Go to the given set mark */
logical_id = strtoull(optarg, NULL, 0);
dest_type = MT_LOCATE_DEST_SET;
set_set = 1;
break;
default:
break;
}
}
/*
* These options are mutually exclusive. The user may only specify
* one.
*/
if ((block_addr_set + file_set + eod + set_set) != 1)
errx(1, "You must specify only one of -b, -f, -e, or -s");
mtl.dest_type = dest_type;
switch (dest_type) {
case MT_LOCATE_DEST_OBJECT:
case MT_LOCATE_DEST_FILE:
case MT_LOCATE_DEST_SET:
mtl.logical_id = logical_id;
break;
case MT_LOCATE_DEST_EOD:
break;
}
if (immediate != 0)
mtl.flags |= MT_LOCATE_FLAG_IMMED;
if (partition_set != 0) {
mtl.flags |= MT_LOCATE_FLAG_CHANGE_PART;
mtl.partition = partition;
}
if (explicit != 0)
mtl.block_address_mode = MT_LOCATE_BAM_EXPLICIT;
else
mtl.block_address_mode = MT_LOCATE_BAM_IMPLICIT;
if (ioctl(mtfd, MTIOCEXTLOCATE, &mtl) == -1)
err(1, "MTIOCEXTLOCATE ioctl failed on %s", tape);
return (retval);
}
typedef enum {
MT_PERIPH_NAME = 0,
MT_UNIT_NUMBER = 1,
MT_VENDOR = 2,
MT_PRODUCT = 3,
MT_REVISION = 4,
MT_COMPRESSION_SUPPORTED = 5,
MT_COMPRESSION_ENABLED = 6,
MT_COMPRESSION_ALGORITHM = 7,
MT_MEDIA_DENSITY = 8,
MT_MEDIA_BLOCKSIZE = 9,
MT_CALCULATED_FILENO = 10,
MT_CALCULATED_REL_BLKNO = 11,
MT_REPORTED_FILENO = 12,
MT_REPORTED_BLKNO = 13,
MT_PARTITION = 14,
MT_BOP = 15,
MT_EOP = 16,
MT_BPEW = 17,
MT_DSREG = 18,
MT_RESID = 19,
MT_FIXED_MODE = 20,
MT_SERIAL_NUM = 21,
MT_MAXIO = 22,
MT_CPI_MAXIO = 23,
MT_MAX_BLK = 24,
MT_MIN_BLK = 25,
MT_BLK_GRAN = 26,
MT_MAX_EFF_IOSIZE = 27
} status_item_index;
static struct mt_status_items {
const char *name;
struct mt_status_entry *entry;
} req_status_items[] = {
{ "periph_name", NULL },
{ "unit_number", NULL },
{ "vendor", NULL },
{ "product", NULL },
{ "revision", NULL },
{ "compression_supported", NULL },
{ "compression_enabled", NULL },
{ "compression_algorithm", NULL },
{ "media_density", NULL },
{ "media_blocksize", NULL },
{ "calculated_fileno", NULL },
{ "calculated_rel_blkno", NULL },
{ "reported_fileno", NULL },
{ "reported_blkno", NULL },
{ "partition", NULL },
{ "bop", NULL },
{ "eop", NULL },
{ "bpew", NULL },
{ "dsreg", NULL },
{ "residual", NULL },
{ "fixed_mode", NULL },
{ "serial_num", NULL },
{ "maxio", NULL },
{ "cpi_maxio", NULL },
{ "max_blk", NULL },
{ "min_blk", NULL },
{ "blk_gran", NULL },
{ "max_effective_iosize", NULL }
};
int
nstatus_print(int argc, char **argv, char *xml_str,
struct mt_status_data *status_data)
{
unsigned int i;
int64_t calculated_fileno, calculated_rel_blkno;
int64_t rep_fileno, rep_blkno, partition, resid;
char block_str[32];
const char *dens_str;
int dsreg, bop, eop, bpew;
int xml_dump = 0;
size_t dens_len;
unsigned int field_width;
int verbose = 0;
int c;
while ((c = getopt(argc, argv, "xv")) != -1) {
switch (c) {
case 'x':
xml_dump = 1;
break;
case 'v':
verbose = 1;
break;
default:
break;
}
}
if (xml_dump != 0) {
printf("%s", xml_str);
return (0);
}
for (i = 0; i < (sizeof(req_status_items)/sizeof(req_status_items[0]));
i++) {
char *name;
name = __DECONST(char *, req_status_items[i].name);
req_status_items[i].entry = mt_status_entry_find(status_data,
name);
if (req_status_items[i].entry == NULL) {
errx(1, "Cannot find status entry %s",
req_status_items[i].name);
}
}
printf("Drive: %s%ju: <%s %s %s> Serial Number: %s\n",
req_status_items[MT_PERIPH_NAME].entry->value,
(uintmax_t)req_status_items[MT_UNIT_NUMBER].entry->value_unsigned,
req_status_items[MT_VENDOR].entry->value,
req_status_items[MT_PRODUCT].entry->value,
req_status_items[MT_REVISION].entry->value,
(req_status_items[MT_SERIAL_NUM].entry->value) ?
req_status_items[MT_SERIAL_NUM].entry->value : "none");
printf("---------------------------------\n");
/*
* We check to see whether we're in fixed mode or not, and don't
* just believe the blocksize. If the SILI bit is turned on, the
* blocksize will be set to 4, even though we're doing variable
* length (well, multiples of 4) blocks.
*/
if (req_status_items[MT_FIXED_MODE].entry->value_signed == 0)
snprintf(block_str, sizeof(block_str), "variable");
else
snprintf(block_str, sizeof(block_str), "%s",
getblksiz(req_status_items[
MT_MEDIA_BLOCKSIZE].entry->value_unsigned));
dens_str = denstostring(req_status_items[
MT_MEDIA_DENSITY].entry->value_unsigned);
if (dens_str == NULL)
dens_len = 0;
else
dens_len = strlen(dens_str);
field_width = MAX(dens_len, 17);
printf("Mode %-*s Blocksize bpi Compression\n"
"Current: %-*s %-12s %-7d ",
field_width, "Density", field_width, dens_str, block_str,
mt_density_bp(req_status_items[
MT_MEDIA_DENSITY].entry->value_unsigned, TRUE));
if (req_status_items[MT_COMPRESSION_SUPPORTED].entry->value_signed == 0)
printf("unsupported\n");
else if (req_status_items[
MT_COMPRESSION_ENABLED].entry->value_signed == 0)
printf("disabled\n");
else {
printf("enabled (%s)\n",
comptostring(req_status_items[
MT_COMPRESSION_ALGORITHM].entry->value_unsigned));
}
dsreg = req_status_items[MT_DSREG].entry->value_signed;
if (dsreg != MTIO_DSREG_NIL) {
const char sfmt[] = "Current Driver State: %s.\n";
printf("---------------------------------\n");
const char *state_str;
state_str = get_driver_state_str(dsreg);
if (state_str == NULL) {
char foo[32];
(void) sprintf(foo, "Unknown state 0x%x", dsreg);
printf(sfmt, foo);
} else {
printf(sfmt, state_str);
}
}
resid = req_status_items[MT_RESID].entry->value_signed;
calculated_fileno = req_status_items[
MT_CALCULATED_FILENO].entry->value_signed;
calculated_rel_blkno = req_status_items[
MT_CALCULATED_REL_BLKNO].entry->value_signed;
rep_fileno = req_status_items[
MT_REPORTED_FILENO].entry->value_signed;
rep_blkno = req_status_items[
MT_REPORTED_BLKNO].entry->value_signed;
bop = req_status_items[MT_BOP].entry->value_signed;
eop = req_status_items[MT_EOP].entry->value_signed;
bpew = req_status_items[MT_BPEW].entry->value_signed;
partition = req_status_items[MT_PARTITION].entry->value_signed;
printf("---------------------------------\n");
printf("Partition: %3jd Calc File Number: %3jd "
" Calc Record Number: %jd\n"
"Residual: %3jd Reported File Number: %3jd "
"Reported Record Number: %jd\n", partition, calculated_fileno,
calculated_rel_blkno, resid, rep_fileno, rep_blkno);
printf("Flags: ");
if (bop > 0 || eop > 0 || bpew > 0) {
int need_comma = 0;
if (bop > 0) {
printf("BOP");
need_comma = 1;
}
if (eop > 0) {
if (need_comma != 0)
printf(",");
printf("EOP");
need_comma = 1;
}
if (bpew > 0) {
if (need_comma != 0)
printf(",");
printf("BPEW");
need_comma = 1;
}
} else {
printf("None");
}
printf("\n");
if (verbose != 0) {
printf("---------------------------------\n");
printf("Tape I/O parameters:\n");
for (i = MT_MAXIO; i <= MT_MAX_EFF_IOSIZE; i++) {
printf(" %s (%s): %ju bytes\n",
req_status_items[i].entry->desc,
req_status_items[i].name,
req_status_items[i].entry->value_unsigned);
}
}
return (0);
}
int
mt_xml_cmd(unsigned long cmd, int argc, char **argv, int mtfd, const char *tape)
{
struct mt_status_data status_data;
#if 0
struct mt_status_entry *entry;
#endif
char *xml_str;
int retval;
unsigned long ioctl_cmd;
switch (cmd) {
case MT_CMD_PROTECT:
case MTIOCPARAMGET:
ioctl_cmd = MTIOCPARAMGET;
break;
default:
ioctl_cmd = MTIOCEXTGET;
break;
}
retval = mt_get_xml_str(mtfd, ioctl_cmd, &xml_str);
if (retval != 0)
err(1, "Couldn't get mt XML string");
retval = mt_get_status(xml_str, &status_data);
if (retval != XML_STATUS_OK) {
warn("Couldn't get mt status for %s", tape);
goto bailout;
}
/*
* This gets set if there are memory allocation or other errors in
* our parsing of the XML.
*/
if (status_data.error != 0) {
warnx("%s", status_data.error_str);
retval = 1;
goto bailout;
}
#if 0
STAILQ_FOREACH(entry, &status_data.entries, links)
mt_status_tree_print(entry, 0, NULL);
#endif
switch (cmd) {
case MTIOCEXTGET:
retval = nstatus_print(argc, argv, xml_str, &status_data);
break;
case MTIOCPARAMGET:
retval = mt_param(argc, argv, mtfd, xml_str, &status_data);
break;
case MT_CMD_PROTECT:
retval = mt_protect(argc, argv, mtfd, &status_data);
break;
case MT_CMD_GETDENSITY:
retval = mt_getdensity(argc, argv, xml_str, &status_data);
break;
}
bailout:
if (xml_str != NULL)
free(xml_str);
mt_status_free(&status_data);
return (retval);
}
static int
mt_set_param(int mtfd, struct mt_status_data *status_data, char *param_name,
char *param_value)
{
struct mt_status_entry *entry;
struct mtparamset param_set;
entry = mt_status_entry_find(status_data,
__DECONST(char *, "mtparamget"));
if (entry == NULL)
errx(1, "Cannot find parameter root node");
bzero(&param_set, sizeof(param_set));
entry = mt_entry_find(entry, param_name);
if (entry == NULL)
errx(1, "Unknown parameter name \"%s\"", param_name);
strlcpy(param_set.value_name, param_name, sizeof(param_set.value_name));
switch (entry->var_type) {
case MT_TYPE_INT:
param_set.value.value_signed = strtoll(param_value, NULL, 0);
param_set.value_type = MT_PARAM_SET_SIGNED;
param_set.value_len = entry->size;
break;
case MT_TYPE_UINT:
param_set.value.value_unsigned = strtoull(param_value, NULL, 0);
param_set.value_type = MT_PARAM_SET_UNSIGNED;
param_set.value_len = entry->size;
break;
case MT_TYPE_STRING: {
size_t param_len;
param_len = strlen(param_value) + 1;
if (param_len > sizeof(param_set.value.value_fixed_str)) {
param_set.value_type = MT_PARAM_SET_VAR_STR;
param_set.value.value_var_str = param_value;
} else {
param_set.value_type = MT_PARAM_SET_FIXED_STR;
strlcpy(param_set.value.value_fixed_str, param_value,
sizeof(param_set.value.value_fixed_str));
}
param_set.value_len = param_len;
break;
}
default:
errx(1, "Unknown parameter type %d for %s", entry->var_type,
param_name);
break;
}
if (ioctl(mtfd, MTIOCPARAMSET, &param_set) == -1)
err(1, "MTIOCPARAMSET");
if (param_set.status != MT_PARAM_STATUS_OK)
errx(1, "Failed to set %s: %s", param_name,
param_set.error_str);
return (0);
}
typedef enum {
MT_PP_LBP_R,
MT_PP_LBP_W,
MT_PP_RBDP,
MT_PP_PI_LENGTH,
MT_PP_PROT_METHOD
} mt_protect_param;
static struct mt_protect_info {
const char *name;
struct mt_status_entry *entry;
uint32_t value;
} mt_protect_list[] = {
{ "lbp_r", NULL, 0 },
{ "lbp_w", NULL, 0 },
{ "rbdp", NULL, 0 },
{ "pi_length", NULL, 0 },
{ "prot_method", NULL, 0 }
};
#define MT_NUM_PROTECT_PARAMS (sizeof(mt_protect_list)/sizeof(mt_protect_list[0]))
#define MT_PROT_NAME "protection"
static int
mt_protect(int argc, char **argv, int mtfd, struct mt_status_data *status_data)
{
int retval = 0;
int do_enable = 0, do_disable = 0, do_list = 0;
int rbdp_set = 0, lbp_w_set = 0, lbp_r_set = 0;
int prot_method_set = 0, pi_length_set = 0;
int verbose = 0;
uint32_t rbdp = 0, lbp_w = 0, lbp_r = 0;
uint32_t prot_method = 0, pi_length = 0;
struct mt_status_entry *prot_entry, *supported_entry;
struct mt_status_entry *entry;
struct mtparamset params[MT_NUM_PROTECT_PARAMS];
struct mtsetlist param_list;
unsigned int i;
int c;
while ((c = getopt(argc, argv, "b:delL:m:r:vw:")) != -1) {
switch (c) {
case 'b':
rbdp_set = 1;
rbdp = strtoul(optarg, NULL, 0);
if ((rbdp != 0) && (rbdp != 1))
errx(1, "valid values for -b are 0 and 1");
break;
case 'd':
do_disable = 1;
break;
case 'e':
do_enable = 1;
break;
case 'l':
do_list = 1;
break;
case 'L':
pi_length_set = 1;
pi_length = strtoul(optarg, NULL, 0);
if (pi_length > SA_CTRL_DP_PI_LENGTH_MASK)
errx(1, "PI length %u > maximum %u",
pi_length, SA_CTRL_DP_PI_LENGTH_MASK);
break;
case 'm':
prot_method_set = 1;
prot_method = strtoul(optarg, NULL, 0);
if (prot_method > SA_CTRL_DP_METHOD_MAX)
errx(1, "Method %u > maximum %u",
prot_method, SA_CTRL_DP_METHOD_MAX);
break;
case 'r':
lbp_r_set = 1;
lbp_r = strtoul(optarg, NULL, 0);
if ((lbp_r != 0) && (lbp_r != 1))
errx(1, "valid values for -r are 0 and 1");
break;
case 'v':
verbose = 1;
break;
case 'w':
lbp_w_set = 1;
lbp_w = strtoul(optarg, NULL, 0);
if ((lbp_w != 0) && (lbp_r != 1))
errx(1, "valid values for -r are 0 and 1");
break;
default:
break;
}
}
if ((rbdp_set + do_disable + do_enable + do_list + pi_length_set +
prot_method_set + lbp_r_set + lbp_w_set) == 0)
errx(1, "Need an argument for protect");
if ((do_disable + do_enable + do_list) != 1)
errx(1, "You must specify only one of -e, -d or -l");
if (do_list != 0) {
retval = mt_protect_print(status_data, verbose);
goto bailout;
}
if (do_enable != 0) {
/*
* Enable protection, but allow the user to override
* settings if he doesn't want everything turned on.
*/
if (rbdp_set == 0)
rbdp = 1;
if (lbp_w_set == 0)
lbp_w = 1;
if (lbp_r_set == 0)
lbp_r = 1;
/*
* If the user doesn't override it, we default to enabling
* Reed-Solomon checkums.
*/
if (prot_method_set == 0)
prot_method = SA_CTRL_DP_REED_SOLOMON;
if (pi_length_set == 0)
pi_length = SA_CTRL_DP_RS_LENGTH;
} else if (do_disable != 0) {
/*
* If the user wants to disable protection, we ignore any
* other parameters he has set. Everything gets set to 0.
*/
rbdp = lbp_w = lbp_r = 0;
prot_method = pi_length = 0;
}
prot_entry = mt_status_entry_find(status_data,
__DECONST(char *, MT_PROT_NAME));
if (prot_entry == NULL)
errx(1, "Unable to find protection information status");
supported_entry = mt_entry_find(prot_entry,
__DECONST(char *, "protection_supported"));
if (supported_entry == NULL)
errx(1, "Unable to find protection support information");
if (((supported_entry->var_type == MT_TYPE_INT)
&& (supported_entry->value_signed == 0))
|| ((supported_entry->var_type == MT_TYPE_UINT)
&& (supported_entry->value_unsigned == 0)))
errx(1, "This device does not support protection information");
mt_protect_list[MT_PP_LBP_R].value = lbp_r;
mt_protect_list[MT_PP_LBP_W].value = lbp_w;
mt_protect_list[MT_PP_RBDP].value = rbdp;
mt_protect_list[MT_PP_PI_LENGTH].value = pi_length;
mt_protect_list[MT_PP_PROT_METHOD].value = prot_method;
bzero(&params, sizeof(params));
bzero(&param_list, sizeof(param_list));
/*
* Go through the list and make sure that we have this parameter,
* and that it is still an unsigned integer. If not, we've got a
* problem.
*/
for (i = 0; i < MT_NUM_PROTECT_PARAMS; i++) {
entry = mt_entry_find(prot_entry,
__DECONST(char *, mt_protect_list[i].name));
if (entry == NULL) {
errx(1, "Unable to find parameter %s",
mt_protect_list[i].name);
}
mt_protect_list[i].entry = entry;
if (entry->var_type != MT_TYPE_UINT)
errx(1, "Parameter %s is type %d, not unsigned, "
"cannot proceed", mt_protect_list[i].name,
entry->var_type);
snprintf(params[i].value_name, sizeof(params[i].value_name),
"%s.%s", MT_PROT_NAME, mt_protect_list[i].name);
/* XXX KDM unify types here */
params[i].value_type = MT_PARAM_SET_UNSIGNED;
params[i].value_len = sizeof(mt_protect_list[i].value);
params[i].value.value_unsigned = mt_protect_list[i].value;
}
param_list.num_params = MT_NUM_PROTECT_PARAMS;
param_list.param_len = sizeof(params);
param_list.params = params;
if (ioctl(mtfd, MTIOCSETLIST, &param_list) == -1)
err(1, "error issuing MTIOCSETLIST ioctl");
for (i = 0; i < MT_NUM_PROTECT_PARAMS; i++) {
if (params[i].status != MT_PARAM_STATUS_OK) {
warnx("%s", params[i].error_str);
retval = 1;
}
}
bailout:
return (retval);
}
static int
mt_param(int argc, char **argv, int mtfd, char *xml_str,
struct mt_status_data *status_data)
{
int list = 0, do_set = 0, xml_dump = 0;
char *param_name = NULL, *param_value = NULL;
int retval = 0, quiet = 0;
int c;
while ((c = getopt(argc, argv, "lp:qs:x")) != -1) {
switch (c) {
case 'l':
list = 1;
break;
case 'p':
if (param_name != NULL) {
warnx("Only one paramter name may be "
"specified");
retval = 1;
goto bailout;
}
param_name = strdup(optarg);
break;
case 'q':
quiet = 1;
break;
case 's':
if (param_value != NULL) {
warnx("Only one paramter value may be "
"specified");
retval = 1;
goto bailout;
}
param_value = strdup(optarg);
do_set = 1;
break;
case 'x':
xml_dump = 1;
break;
default:
break;
}
}
if ((list + do_set + xml_dump) != 1) {
warnx("You must specify only one of -s, -l or -x");
retval = 1;
goto bailout;
}
if (xml_dump != 0) {
printf("%s", xml_str);
retval = 0;
goto bailout;
}
if (do_set != 0) {
if (param_name == NULL)
errx(1, "You must specify -p with -s");
retval = mt_set_param(mtfd, status_data, param_name,
param_value);
} else if (list != 0)
retval = mt_param_list(status_data, param_name, quiet);
bailout:
free(param_name);
free(param_value);
return (retval);
}
int
mt_print_density_entry(struct mt_status_entry *density_root, int indent)
{
struct mt_status_entry *entry;
int retval = 0;
STAILQ_FOREACH(entry, &density_root->child_entries, links) {
if (entry->var_type == MT_TYPE_NODE) {
retval = mt_print_density_entry(entry, indent + 2);
if (retval != 0)
break;
else
continue;
}
if ((strcmp(entry->entry_name, "primary_density_code") == 0)
|| (strcmp(entry->entry_name, "secondary_density_code") == 0)
|| (strcmp(entry->entry_name, "density_code") == 0)) {
printf("%*s%s (%s): %s\n", indent, "", entry->desc ?
entry->desc : "", entry->entry_name,
denstostring(entry->value_unsigned));
} else if (strcmp(entry->entry_name, "density_flags") == 0) {
printf("%*sMedium Access: ", indent, "");
if (entry->value_unsigned & MT_DENS_WRITE_OK) {
printf("Read and Write\n");
} else {
printf("Read Only\n");
}
printf("%*sDefault Density: %s\n", indent, "",
(entry->value_unsigned & MT_DENS_DEFLT) ? "Yes" :
"No");
printf("%*sDuplicate Density: %s\n", indent, "",
(entry->value_unsigned & MT_DENS_DUP) ? "Yes" :
"No");
} else if (strcmp(entry->entry_name, "media_width") == 0) {
printf("%*s%s (%s): %.1f mm\n", indent, "",
entry->desc ? entry->desc : "", entry->entry_name,
(double)((double)entry->value_unsigned / 10));
} else if (strcmp(entry->entry_name, "medium_length") == 0) {
printf("%*s%s (%s): %ju m\n", indent, "",
entry->desc ? entry->desc : "", entry->entry_name,
(uintmax_t)entry->value_unsigned);
} else if (strcmp(entry->entry_name, "capacity") == 0) {
printf("%*s%s (%s): %ju MB\n", indent, "", entry->desc ?
entry->desc : "", entry->entry_name,
(uintmax_t)entry->value_unsigned);
} else {
printf("%*s%s (%s): %s\n", indent, "", entry->desc ?
entry->desc : "", entry->entry_name, entry->value);
}
}
return (retval);
}
int
mt_print_density_report(struct mt_status_entry *report_root, int indent)
{
struct mt_status_entry *mt_report, *media_report;
struct mt_status_entry *entry;
int retval = 0;
mt_report = mt_entry_find(report_root,
__DECONST(char *, MT_MEDIUM_TYPE_REPORT_NAME));
if (mt_report == NULL)
return (1);
media_report = mt_entry_find(report_root,
__DECONST(char *, MT_MEDIA_REPORT_NAME));
if (media_report == NULL)
return (1);
if ((mt_report->value_signed == 0)
&& (media_report->value_signed == 0)) {
printf("%*sThis tape drive supports the following "
"media densities:\n", indent, "");
} else if ((mt_report->value_signed == 0)
&& (media_report->value_signed != 0)) {
printf("%*sThe tape currently in this drive supports "
"the following media densities:\n", indent, "");
} else if ((mt_report->value_signed != 0)
&& (media_report->value_signed == 0)) {
printf("%*sThis tape drive supports the following "
"media types:\n", indent, "");
} else {
printf("%*sThis tape currently in this drive supports "
"the following media types:\n", indent, "");
}
STAILQ_FOREACH(entry, &report_root->child_entries, links) {
struct mt_status_nv *nv;
if (strcmp(entry->entry_name, MT_DENSITY_ENTRY_NAME) != 0)
continue;
STAILQ_FOREACH(nv, &entry->nv_list, links) {
if (strcmp(nv->name, "num") != 0)
continue;
break;
}
indent += 2;
printf("%*sDensity Entry", indent, "");
if (nv != NULL)
printf(" %s", nv->value);
printf(":\n");
retval = mt_print_density_entry(entry, indent + 2);
indent -= 2;
}
return (retval);
}
int
mt_print_density(struct mt_status_entry *density_root, int indent)
{
struct mt_status_entry *entry;
int retval = 0;
/*
* We should have this entry for every tape drive. This particular
* value is reported via the mode page block header, not the
* SCSI REPORT DENSITY SUPPORT command.
*/
entry = mt_entry_find(density_root,
__DECONST(char *, MT_MEDIA_DENSITY_NAME));
if (entry == NULL)
errx(1, "Unable to find node %s", MT_MEDIA_DENSITY_NAME);
printf("%*sCurrent density: %s\n", indent, "",
denstostring(entry->value_unsigned));
/*
* It isn't an error if we don't have any density reports. Tape
* drives that don't support the REPORT DENSITY SUPPORT command
* won't have any; they will only have the current density entry
* above.
*/
STAILQ_FOREACH(entry, &density_root->child_entries, links) {
if (strcmp(entry->entry_name, MT_DENSITY_REPORT_NAME) != 0)
continue;
retval = mt_print_density_report(entry, indent);
}
return (retval);
}
int
mt_getdensity(int argc, char **argv, char *xml_str,
struct mt_status_data *status_data)
{
int retval = 0;
int verbose = 0, xml_dump = 0;
struct mt_status_entry *density_root = NULL;
int c;
while ((c = getopt(argc, argv, "vx")) != -1) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'x':
xml_dump = 1;
break;
}
}
if (xml_dump != 0) {
printf("%s", xml_str);
return (0);
}
density_root = mt_status_entry_find(status_data,
__DECONST(char *, MT_DENSITY_ROOT_NAME));
if (density_root == NULL)
errx(1, "Cannot find density root node %s",
MT_DENSITY_ROOT_NAME);
retval = mt_print_density(density_root, 0);
return (retval);
}
static void
warn_eof(void)
{
fprintf(stderr,
"The \"eof\" command has been disabled.\n"
"Use \"weof\" if you really want to write end-of-file marks,\n"
"or \"eom\" if you rather want to skip to the end of "
"recorded medium.\n");
exit(1);
}
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