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HardenedBSD/usr.bin/mt/mt.c
Warner Losh 0b8224d1cc Remove copyright strings ifdef'd out 
We've ifdef'd out the copyright strings for some time now. Go ahead and
remove the ifdefs. Plus whatever other detritis was left over from other
recent removals. These copyright strings are present in the comments and
are largely from CSRG's attempt at adding their copyright to every
binary file (which modern interpretations of the license doesn't
require).

Sponsored by:		Netflix
2023-11-26 22:23:58 -07:00

1584 lines
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/*
* SPDX-License-Identifier: BSD-3-Clause
*
* 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.
* 3. 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)
*/
/*
* 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) __dead2;
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 parameter 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 parameter 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 xml_dump = 0;
struct mt_status_entry *density_root = NULL;
int c;
while ((c = getopt(argc, argv, "vx")) != -1) {
switch (c) {
case 'v':
/* Ignore. */
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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