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hdparm.c
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hdparm.c
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/*
* hdparm.c - Command line interface to get/set hard disk parameters.
* - by Mark Lord (C) 1994-2012 -- freely distributable.
*/
#define _LARGEFILE64_SOURCE /*for lseek64*/
#define _BSD_SOURCE /* for strtoll() */
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#define __USE_GNU /* for O_DIRECT */
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <ctype.h>
#include <endian.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/sysmacros.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/types.h>
#include <sys/mount.h>
#include <sys/mman.h>
#include <sys/user.h>
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/major.h>
#include <endian.h>
#include <asm/byteorder.h>
#include "hdparm.h"
#include "sgio.h"
static int argc;
static char **argv;
static char *argp;
static int num_flags_processed = 0;
extern const char *minor_str[];
#define VERSION "v9.43"
#ifndef O_DIRECT
#define O_DIRECT 040000 /* direct disk access, not easily obtained from headers */
#endif
#ifndef CDROM_SELECT_SPEED /* already defined in 2.3.xx kernels and above */
#define CDROM_SELECT_SPEED 0x5322
#endif
#define TIMING_BUF_MB 2
#define TIMING_BUF_BYTES (TIMING_BUF_MB * 1024 * 1024)
char *progname;
int verbose = 0;
int prefer_ata12 = 0;
static int do_defaults = 0, do_flush = 0, do_ctimings, do_timings = 0;
static int do_identity = 0, get_geom = 0, noisy = 1, quiet = 0;
static int do_flush_wcache = 0;
static int set_wdidle3 = 0, get_wdidle3 = 0, wdidle3 = 0;
static int set_timings_offset = 0;
static __u64 timings_offset = 0;
static int set_fsreadahead= 0, get_fsreadahead= 0, fsreadahead= 0;
static int set_readonly = 0, get_readonly = 0, readonly = 0;
static int set_unmask = 0, get_unmask = 0, unmask = 0;
static int set_mult = 0, get_mult = 0, mult = 0;
static int set_dma = 0, get_dma = 0, dma = 0;
static int set_dma_q = 0, get_dma_q = 0, dma_q = 0;
static int set_nowerr = 0, get_nowerr = 0, nowerr = 0;
static int set_keep = 0, get_keep = 0, keep = 0;
static int set_io32bit = 0, get_io32bit = 0, io32bit = 0;
static int set_piomode = 0, get_piomode= 0, piomode = 0;
static int set_dkeep = 0, get_dkeep = 0, dkeep = 0;
static int set_standby = 0, get_standby = 0, standby= 0;
static int set_xfermode = 0, get_xfermode = 0;
static int xfermode_requested= 0;
static int set_lookahead= 0, get_lookahead= 0, lookahead= 0;
static int set_prefetch = 0, get_prefetch = 0, prefetch = 0;
static int set_defects = 0, get_defects = 0, defects = 0;
static int set_wcache = 0, get_wcache = 0, wcache = 0;
static int set_doorlock = 0, get_doorlock = 0, doorlock = 0;
static int set_seagate = 0, get_seagate = 0;
static int get_idleimmediate = 0, set_idleimmediate = 0;
static int get_idleunload = 0, set_idleunload = 0;
static int set_standbynow = 0, get_standbynow = 0;
static int set_sleepnow = 0, get_sleepnow = 0;
static int set_powerup_in_standby = 0, get_powerup_in_standby = 0, powerup_in_standby = 0;
static int get_hitachi_temp = 0, set_hitachi_temp = 0;
static int security_freeze = 0;
static int security_master = 0, security_mode = 0;
static int enhanced_erase = 0;
static int set_security = 0;
static int do_dco_freeze = 0, do_dco_restore = 0, do_dco_identify = 0;
static unsigned int security_command = ATA_OP_SECURITY_UNLOCK;
static char security_password[33], *fwpath;
static int get_powermode = 0, set_powermode = 0;
static int set_apmmode = 0, get_apmmode= 0, apmmode = 0;
static int get_cdromspeed = 0, set_cdromspeed = 0, cdromspeed = 0;
static int do_IDentity = 0, drq_hsm_error = 0;
static int do_fwdownload = 0, xfer_mode = 0;
static int set_busstate = 0, get_busstate = 0, busstate = 0;
static int set_reread_partn = 0, get_reread_partn;
static int set_acoustic = 0, get_acoustic = 0, acoustic = 0;
static int write_read_verify = 0, get_write_read_verify = 0, set_write_read_verify = 0;
static int make_bad_sector = 0, make_bad_sector_flagged;
static __u64 make_bad_sector_addr = ~0ULL;
#ifdef FORMAT_AND_ERASE
static int format_track = 0;
static __u64 format_track_addr = ~0ULL;
static int erase_sectors = 0;
static __u64 erase_sectors_addr = ~0ULL;
#endif
static struct sector_range_s *trim_sector_ranges = NULL;
static int trim_sector_ranges_count = 0;
static int trim_from_stdin = 0;
static int write_sector = 0;
static __u64 write_sector_addr = ~0ULL;
static int read_sector = 0;
static __u64 read_sector_addr = ~0ULL;
static int set_max_sectors = 0, set_max_permanent, get_native_max_sectors = 0;
static __u64 set_max_addr = 0;
static int get_doreset = 0, set_doreset = 0;
static int i_know_what_i_am_doing = 0;
static int please_destroy_my_drive = 0;
const int timeout_15secs = 15;
const int timeout_60secs = 60;
const int timeout_5mins = (5 * 60);
const int timeout_2hrs = (2 * 60 * 60);
static int open_flags = O_RDONLY|O_NONBLOCK;
// Historically, if there was no HDIO_OBSOLETE_IDENTITY, then
// then the HDIO_GET_IDENTITY only returned 142 bytes.
// Otherwise, HDIO_OBSOLETE_IDENTITY returns 142 bytes,
// and HDIO_GET_IDENTITY returns 512 bytes. But the latest
// 2.5.xx kernels no longer define HDIO_OBSOLETE_IDENTITY
// (which they should, but they should just return -EINVAL).
//
// So.. we must now assume that HDIO_GET_IDENTITY returns 512 bytes.
// On a really old system, it will not, and we will be confused.
// Too bad, really.
const char *cfg_str[] =
{ "", " HardSect", " SoftSect", " NotMFM",
" HdSw>15uSec", " SpinMotCtl", " Fixed", " Removeable",
" DTR<=5Mbs", " DTR>5Mbs", " DTR>10Mbs", " RotSpdTol>.5%",
" dStbOff", " TrkOff", " FmtGapReq", " nonMagnetic"
};
const char *SlowMedFast[] = {"slow", "medium", "fast", "eide", "ata"};
const char *BuffType[4] = {"unknown", "1Sect", "DualPort", "DualPortCache"};
#define YN(b) (((b)==0)?"no":"yes")
static void on_off (unsigned int value)
{
printf(value ? " (on)\n" : " (off)\n");
}
#ifndef ENOIOCTLCMD
#define ENOIOCTLCMD ENOTTY
#endif
static void flush_buffer_cache (int fd)
{
sync();
fsync(fd); /* flush buffers */
fdatasync(fd); /* flush buffers */
sync();
if (ioctl(fd, BLKFLSBUF, NULL)) /* do it again, big time */
perror("BLKFLSBUF failed");
else
do_drive_cmd(fd, NULL, 0); /* IDE: await completion */
sync();
}
static int seek_to_zero (int fd)
{
if (lseek(fd, (off_t) 0, SEEK_SET)) {
perror("lseek() failed");
return 1;
}
return 0;
}
static int read_big_block (int fd, char *buf)
{
int i, rc;
if ((rc = read(fd, buf, TIMING_BUF_BYTES)) != TIMING_BUF_BYTES) {
if (rc) {
if (rc == -1)
perror("read() failed");
else
fprintf(stderr, "read(%u) returned %u bytes\n", TIMING_BUF_BYTES, rc);
} else {
fputs ("read() hit EOF - device too small\n", stderr);
}
return 1;
}
/* access all sectors of buf to ensure the read fully completed */
for (i = 0; i < TIMING_BUF_BYTES; i += 512)
buf[i] &= 1;
return 0;
}
static void *prepare_timing_buf (unsigned int len)
{
unsigned int i;
__u8 *buf;
buf = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
if (buf == MAP_FAILED) {
perror("could not allocate timing buf");
return NULL;
}
for (i = 0; i < len; i += 4096)
buf[i] = 0; /* guarantee memory is present/assigned */
if (-1 == mlock(buf, len)) {
perror("mlock() failed on timing buf");
munmap(buf, len);
return NULL;
}
mlockall(MCL_CURRENT|MCL_FUTURE); // don't care if this fails on low-memory machines
sync();
/* give time for I/O to settle */
sleep(3);
return buf;
}
static void time_cache (int fd)
{
char *buf;
struct itimerval e1, e2;
double elapsed, elapsed2;
unsigned int iterations, total_MB;
buf = prepare_timing_buf(TIMING_BUF_BYTES);
if (!buf)
return;
/*
* getitimer() is used rather than gettimeofday() because
* it is much more consistent (on my machine, at least).
*/
setitimer(ITIMER_REAL, &(struct itimerval){{1000,0},{1000,0}}, NULL);
if (seek_to_zero (fd)) return;
if (read_big_block (fd, buf)) return;
printf(" Timing %scached reads: ", (open_flags & O_DIRECT) ? "O_DIRECT " : "");
fflush(stdout);
/* Clear out the device request queues & give them time to complete */
flush_buffer_cache(fd);
sleep(1);
/* Now do the timing */
iterations = 0;
getitimer(ITIMER_REAL, &e1);
do {
++iterations;
if (seek_to_zero (fd) || read_big_block (fd, buf))
goto quit;
getitimer(ITIMER_REAL, &e2);
elapsed = (e1.it_value.tv_sec - e2.it_value.tv_sec)
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
} while (elapsed < 2.0);
total_MB = iterations * TIMING_BUF_MB;
elapsed = (e1.it_value.tv_sec - e2.it_value.tv_sec)
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
/* Now remove the lseek() and getitimer() overheads from the elapsed time */
getitimer(ITIMER_REAL, &e1);
do {
if (seek_to_zero (fd))
goto quit;
getitimer(ITIMER_REAL, &e2);
elapsed2 = (e1.it_value.tv_sec - e2.it_value.tv_sec)
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
} while (--iterations);
elapsed -= elapsed2;
if (total_MB >= elapsed) /* more than 1MB/s */
printf("%3u MB in %5.2f seconds = %6.2f MB/sec\n",
total_MB, elapsed,
total_MB / elapsed);
else
printf("%3u MB in %5.2f seconds = %6.2f kB/sec\n",
total_MB, elapsed,
total_MB / elapsed * 1024);
flush_buffer_cache(fd);
sleep(1);
quit:
munlockall();
munmap(buf, TIMING_BUF_BYTES);
}
static int time_device (int fd)
{
char *buf;
double elapsed;
struct itimerval e1, e2;
int err = 0;
unsigned int max_iterations = 1024, total_MB, iterations;
/*
* get device size
*/
if (do_ctimings || do_timings) {
__u64 nsectors;
do_flush = 1;
err = get_dev_geometry(fd, NULL, NULL, NULL, NULL, &nsectors);
if (!err)
max_iterations = nsectors / (2 * 1024) / TIMING_BUF_MB;
}
buf = prepare_timing_buf(TIMING_BUF_BYTES);
if (!buf)
err = ENOMEM;
if (err)
goto quit;
printf(" Timing %s disk reads", (open_flags & O_DIRECT) ? "O_DIRECT" : "buffered");
if (set_timings_offset)
printf(" (offset %llu GB)", timings_offset / 0x40000000ULL);
printf(": ");
fflush(stdout);
if (set_timings_offset && lseek64(fd, timings_offset, SEEK_SET) == (off64_t)-1) {
err = errno;
perror("lseek() failed");
goto quit;
}
/*
* getitimer() is used rather than gettimeofday() because
* it is much more consistent (on my machine, at least).
*/
setitimer(ITIMER_REAL, &(struct itimerval){{1000,0},{1000,0}}, NULL);
/* Now do the timings for real */
iterations = 0;
getitimer(ITIMER_REAL, &e1);
do {
++iterations;
if (read_big_block (fd, buf))
goto quit;
getitimer(ITIMER_REAL, &e2);
elapsed = (e1.it_value.tv_sec - e2.it_value.tv_sec)
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
} while (elapsed < 3.0 && iterations < max_iterations);
total_MB = iterations * TIMING_BUF_MB;
if ((total_MB / elapsed) > 1.0) /* more than 1MB/s */
printf("%3u MB in %5.2f seconds = %6.2f MB/sec\n",
total_MB, elapsed, total_MB / elapsed);
else
printf("%3u MB in %5.2f seconds = %6.2f kB/sec\n",
total_MB, elapsed, total_MB / elapsed * 1024);
quit:
munlockall();
if (buf)
munmap(buf, TIMING_BUF_BYTES);
return err;
}
static void dmpstr (const char *prefix, unsigned int i, const char *s[], unsigned int maxi)
{
if (i > maxi)
printf("%s%u", prefix, i);
else
printf("%s%s", prefix, s[i]);
}
static __u16 *id;
static void get_identify_data (int fd);
static __u64 get_lba_capacity (__u16 *idw)
{
__u64 nsects = ((__u32)idw[58] << 16) | idw[57];
if (idw[49] & 0x200) {
nsects = ((__u32)idw[61] << 16) | idw[60];
if ((idw[83] & 0xc000) == 0x4000 && (idw[86] & 0x0400)) {
nsects = (__u64)idw[103] << 48 | (__u64)idw[102] << 32 |
(__u64)idw[101] << 16 | idw[100];
}
}
return nsects;
}
static char *strip (char *s)
{
char *e;
while (*s == ' ') ++s;
if (*s)
for (e = s + strlen(s); *--e == ' '; *e = '\0');
return s;
}
static void dump_identity (__u16 *idw)
{
int i;
char pmodes[64] = {0,}, dmodes[128]={0,}, umodes[128]={0,};
char *model = strip(strndup((char *)&idw[27], 40));
char *fwrev = strip(strndup((char *)&idw[23], 8));
char *serno = strip(strndup((char *)&idw[10], 20));
__u8 tPIO;
printf("\n Model=%.40s, FwRev=%.8s, SerialNo=%.20s", model, fwrev, serno);
printf("\n Config={");
for (i = 0; i <= 15; i++) {
if (idw[0] & (1<<i))
printf("%s", cfg_str[i]);
}
printf(" }\n");
printf(" RawCHS=%u/%u/%u, TrkSize=%u, SectSize=%u, ECCbytes=%u\n",
idw[1], idw[3], idw[6], idw[4], idw[5], idw[22]);
dmpstr(" BuffType=", idw[20], BuffType, 3);
if (idw[21] && idw[21] != 0xffff)
printf(", BuffSize=%ukB", idw[21] / 2);
else
printf(", BuffSize=unknown");
printf(", MaxMultSect=%u", idw[47] & 0xff);
if ((idw[47] & 0xff)) {
printf(", MultSect=");
if (!(idw[59] & 0x100))
printf("?%u?", idw[59] & 0xff);
else if (idw[59] & 0xff)
printf("%u", idw[59] & 0xff);
else
printf("off");
}
putchar('\n');
tPIO = idw[51] >> 8;
if (tPIO <= 5) {
strcat(pmodes, "pio0 ");
if (tPIO >= 1) strcat(pmodes, "pio1 ");
if (tPIO >= 2) strcat(pmodes, "pio2 ");
}
if (!(idw[53] & 1))
printf(" (maybe):");
printf(" CurCHS=%u/%u/%u, CurSects=%u", idw[54], idw[55], idw[56], idw[57] | (idw[58] << 16));
printf(", LBA=%s", YN(idw[49] & 0x200));
if (idw[49] & 0x200)
printf(", LBAsects=%llu", get_lba_capacity(idw));
if (idw[49] & 0x100) {
if (idw[62] | idw[63]) {
if (idw[62] & 0x100) strcat(dmodes,"*");
if (idw[62] & 1) strcat(dmodes,"sdma0 ");
if (idw[62] & 0x200) strcat(dmodes,"*");
if (idw[62] & 2) strcat(dmodes,"sdma1 ");
if (idw[62] & 0x400) strcat(dmodes,"*");
if (idw[62] & 4) strcat(dmodes,"sdma2 ");
if (idw[62] & 0xf800) strcat(dmodes,"*");
if (idw[62] & 0xf8) strcat(dmodes,"sdma? ");
if (idw[63] & 0x100) strcat(dmodes,"*");
if (idw[63] & 1) strcat(dmodes,"mdma0 ");
if (idw[63] & 0x200) strcat(dmodes,"*");
if (idw[63] & 2) strcat(dmodes,"mdma1 ");
if (idw[63] & 0x400) strcat(dmodes,"*");
if (idw[63] & 4) strcat(dmodes,"mdma2 ");
if (idw[63] & 0xf800) strcat(dmodes,"*");
if (idw[63] & 0xf8) strcat(dmodes,"mdma? ");
}
}
printf("\n IORDY=");
if (idw[49] & 0x800)
printf((idw[49] & 0x400) ? "on/off" : "yes");
else
printf("no");
if ((idw[49] & 0x800) || (idw[53] & 2)) {
if ((idw[53] & 2)) {
printf(", tPIO={min:%u,w/IORDY:%u}", idw[67], idw[68]);
if (idw[64] & 1) strcat(pmodes, "pio3 ");
if (idw[64] & 2) strcat(pmodes, "pio4 ");
if (idw[64] &~3) strcat(pmodes, "pio? ");
}
if (idw[53] & 4) {
if (idw[88] & 0x100) strcat(umodes,"*");
if (idw[88] & 0x001) strcat(umodes,"udma0 ");
if (idw[88] & 0x200) strcat(umodes,"*");
if (idw[88] & 0x002) strcat(umodes,"udma1 ");
if (idw[88] & 0x400) strcat(umodes,"*");
if (idw[88] & 0x004) strcat(umodes,"udma2 ");
if (idw[88] & 0x800) strcat(umodes,"*");
if (idw[88] & 0x008) strcat(umodes,"udma3 ");
if (idw[88] & 0x1000) strcat(umodes,"*");
if (idw[88] & 0x010) strcat(umodes,"udma4 ");
if (idw[88] & 0x2000) strcat(umodes,"*");
if (idw[88] & 0x020) strcat(umodes,"udma5 ");
if (idw[88] & 0x4000) strcat(umodes,"*");
if (idw[88] & 0x040) strcat(umodes,"udma6 ");
}
}
if ((idw[49] & 0x100) && (idw[53] & 2))
printf(", tDMA={min:%u,rec:%u}", idw[65], idw[66]);
printf("\n PIO modes: %s", pmodes);
if (*dmodes)
printf("\n DMA modes: %s", dmodes);
if (*umodes)
printf("\n UDMA modes: %s", umodes);
printf("\n AdvancedPM=%s",YN(idw[83]&8));
if (idw[83] & 8) {
if (!(idw[86]&8))
printf(": disabled (255)");
else if ((idw[91]&0xFF00)!=0x4000)
printf(": unknown setting");
else
printf(": mode=0x%02X (%u)",idw[91]&0xFF,idw[91]&0xFF);
}
if (idw[82]&0x20)
printf(" WriteCache=%s",(idw[85]&0x20) ? "enabled" : "disabled");
if (idw[81] || idw[80]) {
printf("\n Drive conforms to: ");
if (idw[81] <= 31)
printf("%s: ", minor_str[idw[81]]);
else
printf("unknown: ");
if (idw[80] != 0x0000 && /* NOVAL_0 */
idw[80] != 0xFFFF) { /* NOVAL_1 */
int count = 0;
for (i=0; i <= 7; i++) {
if (idw[80] & (1<<i))
printf("%s%u", count++ ? "," : " ATA/ATAPI-", i);
}
}
}
printf("\n");
printf("\n * signifies the current active mode\n");
printf("\n");
}
static const char *busstate_str (unsigned int value)
{
static const char *states[4] = {"off", "on", "tristate", "unknown"};
if (value > 3)
value = 3;
return states[value];
}
static void interpret_standby (void)
{
printf(" (");
switch(standby) {
case 0: printf("off");
break;
case 252: printf("21 minutes");
break;
case 253: printf("vendor-specific");
break;
case 254: printf("?reserved");
break;
case 255: printf("21 minutes + 15 seconds");
break;
default:
if (standby <= 240) {
unsigned int secs = standby * 5;
unsigned int mins = secs / 60;
secs %= 60;
if (mins) printf("%u minutes", mins);
if (mins && secs) printf(" + ");
if (secs) printf("%u seconds", secs);
} else if (standby <= 251) {
unsigned int mins = (standby - 240) * 30;
unsigned int hrs = mins / 60;
mins %= 60;
if (hrs) printf("%u hours", hrs);
if (hrs && mins) printf(" + ");
if (mins) printf("%u minutes", mins);
} else {
printf("illegal value");
}
break;
}
printf(")\n");
}
struct xfermode_entry {
int val;
const char *name;
};
static const struct xfermode_entry xfermode_table[] = {
{ 8, "pio0" },
{ 9, "pio1" },
{ 10, "pio2" },
{ 11, "pio3" },
{ 12, "pio4" },
{ 13, "pio5" },
{ 14, "pio6" },
{ 15, "pio7" },
{ 16, "sdma0" },
{ 17, "sdma1" },
{ 18, "sdma2" },
{ 19, "sdma3" },
{ 20, "sdma4" },
{ 21, "sdma5" },
{ 22, "sdma6" },
{ 23, "sdma7" },
{ 32, "mdma0" },
{ 33, "mdma1" },
{ 34, "mdma2" },
{ 35, "mdma3" },
{ 36, "mdma4" },
{ 37, "mdma5" },
{ 38, "mdma6" },
{ 39, "mdma7" },
{ 64, "udma0" },
{ 65, "udma1" },
{ 66, "udma2" },
{ 67, "udma3" },
{ 68, "udma4" },
{ 69, "udma5" },
{ 70, "udma6" },
{ 71, "udma7" },
{ 0, NULL }
};
static int translate_xfermode(char * name)
{
const struct xfermode_entry *tmp;
char *endptr;
int val = -1;
for (tmp = xfermode_table; tmp->name != NULL; ++tmp) {
if (!strcmp(name, tmp->name))
return tmp->val;
}
val = strtol(name, &endptr, 10);
if (*endptr == '\0')
return val;
return -1;
}
static void interpret_xfermode (unsigned int xfermode)
{
printf(" (");
switch(xfermode) {
case 0: printf("default PIO mode");
break;
case 1: printf("default PIO mode, disable IORDY");
break;
case 8:
case 9:
case 10:
case 11:
case 12:
case 13:
case 14:
case 15: printf("PIO flow control mode%u", xfermode-8);
break;
case 16:
case 17:
case 18:
case 19:
case 20:
case 21:
case 22:
case 23: printf("singleword DMA mode%u", xfermode-16);
break;
case 32:
case 33:
case 34:
case 35:
case 36:
case 37:
case 38:
case 39: printf("multiword DMA mode%u", xfermode-32);
break;
case 64:
case 65:
case 66:
case 67:
case 68:
case 69:
case 70:
case 71: printf("UltraDMA mode%u", xfermode-64);
break;
default:
printf("unknown, probably not valid");
break;
}
printf(")\n");
}
static unsigned int get_erase_timeout_secs (int fd, int enhanced)
{
unsigned int timeout = 0;
unsigned int idx = 89 + enhanced;
get_identify_data(fd);
if (id) {
timeout = id[idx];
if (timeout && timeout <= 0xff) {
/*
* 0xff means "more than 254 2-minute intervals (508+ minutes),
* but we really want a better idea than that.
* Norman Diamond suggests allowing 1sec per 30MB of capacity.
*/
if (timeout == 0xff) {
__u64 lba_limit = get_lba_capacity(id);
__u64 estimate = (lba_limit / 2048ULL) / 30ULL / 60;
timeout = 508 + 60; /* spec says > 508 minutes */
if (timeout < estimate)
timeout = estimate;
} else {
timeout = (timeout * 2) + 30; /* Add on a 30min margin */
}
}
}
if (!timeout)
timeout = 2 * 60; /* default: two hours */
timeout *= 60; /* convert minutes to seconds */
return timeout;
}
static void
do_set_security (int fd)
{
int err = 0;
const char *description;
struct hdio_taskfile *r;
__u8 *data;
r = malloc(sizeof(struct hdio_taskfile) + 512);
if (!r) {
err = errno;
perror("malloc()");
exit(err);
}
memset(r, 0, sizeof(struct hdio_taskfile) + 512);
r->cmd_req = TASKFILE_CMD_REQ_OUT;
r->dphase = TASKFILE_DPHASE_PIO_OUT;
r->obytes = 512;
r->lob.command = security_command;
r->oflags.lob.nsect = 1;
r->lob.nsect = 1;
data = (__u8*)r->data;
data[0] = security_master & 0x01;
memcpy(data+2, security_password, 32);
r->oflags.lob.command = 1;
r->oflags.lob.feat = 1;
switch (security_command) {
case ATA_OP_SECURITY_ERASE_UNIT:
description = "SECURITY_ERASE";
data[0] |= enhanced_erase ? 0x02 : 0;
break;
case ATA_OP_SECURITY_DISABLE:
description = "SECURITY_DISABLE";
break;
case ATA_OP_SECURITY_UNLOCK:
description = "SECURITY_UNLOCK";
break;
case ATA_OP_SECURITY_SET_PASS:
description = "SECURITY_SET_PASS";
data[1] = (security_mode & 0x01);
if (security_master) {
/* increment master-password revision-code */
__u16 revcode;
get_identify_data(fd);
if (!id)
exit(EIO);
revcode = id[92];
if (revcode == 0xfffe)
revcode = 0;
revcode += 1;
data[34] = revcode;
data[35] = revcode >> 8;
}
break;
default:
fprintf(stderr, "BUG in do_set_security(), command1=0x%x\n", security_command);
exit(EINVAL);
}
printf(" Issuing %s command, password=\"%s\", user=%s",
description, security_password, (data[0] & 1) ? "master" : "user");
if (security_command == ATA_OP_SECURITY_SET_PASS)
printf(", mode=%s", data[1] ? "max" : "high");
printf("\n");
/*
* The Linux kernel IDE driver (until at least 2.6.12) segfaults on the first
* command when issued on a locked drive, and the actual erase is never issued.
* One could patch the code to issue separate commands for erase prepare and
* erase to erase a locked drive.
*
* We would like to issue these commands consecutively, but since the Linux
* kernel until at least 2.6.12 segfaults on each command issued the second will
* never be executed.
*
* One is at least able to issue the commands consecutively in two hdparm invocations,
* assuming the segfault isn't followed by an oops.
*/
if (security_command == ATA_OP_SECURITY_ERASE_UNIT) {
unsigned int timeout = get_erase_timeout_secs(fd, enhanced_erase);
__u8 args[4] = {ATA_OP_SECURITY_ERASE_PREPARE,0,0,0};
if (do_drive_cmd(fd, args, 0)) {
err = errno;
perror("ERASE_PREPARE");
} else {
if ((do_taskfile_cmd(fd, r, timeout))) {
err = errno;
perror("SECURITY_ERASE");
}
}
} else if (security_command == ATA_OP_SECURITY_DISABLE) {
/* First attempt an unlock */
r->lob.command = ATA_OP_SECURITY_UNLOCK;
if ((do_taskfile_cmd(fd, r, timeout_15secs))) {
err = errno;
perror("SECURITY_UNLOCK");
} else {
/* Then the security disable */
r->lob.command = security_command;
if ((do_taskfile_cmd(fd, r, timeout_15secs))) {
err = errno;
perror("SECURITY_DISABLE");
}
}
} else if (security_command == ATA_OP_SECURITY_UNLOCK) {
if ((do_taskfile_cmd(fd, r, timeout_15secs))) {
err = errno;
perror("SECURITY_UNLOCK");
}
} else if (security_command == ATA_OP_SECURITY_SET_PASS) {
if ((do_taskfile_cmd(fd, r, timeout_15secs))) {
err = errno;
perror("SECURITY_SET_PASS");
}
} else {
fprintf(stderr, "BUG in do_set_security(), command2=0x%x\n", security_command);
err = EINVAL;
}
free(r);
if (err)
exit(err);
}
static __u8 last_identify_op = 0;
static void get_identify_data (int fd)
{
static __u8 args[4+512];
int i;
if (id)
return;
memset(args, 0, sizeof(args));
last_identify_op = ATA_OP_IDENTIFY;
args[0] = last_identify_op;
args[3] = 1; /* sector count */
if (do_drive_cmd(fd, args, 0)) {
prefer_ata12 = 0;
memset(args, 0, sizeof(args));
last_identify_op = ATA_OP_PIDENTIFY;
args[0] = last_identify_op;
args[3] = 1; /* sector count */
if (do_drive_cmd(fd, args, 0)) {
perror(" HDIO_DRIVE_CMD(identify) failed");
return;
}
}
/* byte-swap the little-endian IDENTIFY data to match byte-order on host CPU */
id = (void *)(args + 4);
for (i = 0; i < 0x100; ++i)
__le16_to_cpus(&id[i]);
}
static void confirm_i_know_what_i_am_doing (const char *opt, const char *explanation)
{
if (!i_know_what_i_am_doing) {
fprintf(stderr, "Use of %s is VERY DANGEROUS.\n%s\n"
"Please supply the --yes-i-know-what-i-am-doing flag if you really want this.\n"
"Program aborted.\n", opt, explanation);
exit(EPERM);
}
}
static void confirm_please_destroy_my_drive (const char *opt, const char *explanation)
{
if (!please_destroy_my_drive) {
fprintf(stderr, "Use of %s is EXTREMELY DANGEROUS.\n%s\n"
"Please also supply the --please-destroy-my-drive flag if you really want this.\n"
"Program aborted.\n", opt, explanation);
exit(EPERM);
}
}
static int flush_wcache (int fd)
{
__u8 args[4] = {ATA_OP_FLUSHCACHE,0,0,0};
int err = 0;
get_identify_data(fd);
if (id && (id[83] & 0xe000) == 0x6000)
args[0] = ATA_OP_FLUSHCACHE_EXT;
if (do_drive_cmd(fd, args, timeout_60secs)) {
err = errno;
perror (" HDIO_DRIVE_CMD(flushcache) failed");
}
return err;
}
static void dump_sectors (__u16 *w, unsigned int count)
{
unsigned int i;
for (i = 0; i < (count*256/8); ++i) {
#if 0
printf("%04x %04x %04x %04x %04x %04x %04x %04x\n",
w[0], w[1], w[2], w[3], w[4], w[5], w[6], w[7]);
w += 8;
#else
int word;
for (word = 0; word < 8; ++word) {
printf("%04x", le16toh(w[0]));
++w;
putchar(word == 7 ? '\n' : ' ');
}
#endif
}
}
static int abort_if_not_full_device (int fd, __u64 lba, const char *devname, const char *msg)
{
__u64 start_lba;
int i, err, shortened = 0;
char *fdevname = strdup(devname);
err = get_dev_geometry(fd, NULL, NULL, NULL, &start_lba, NULL);
if (err)
exit(err);
for (i = strlen(fdevname); --i > 2 && (fdevname[i] >= '0' && fdevname[i] <= '9');) {
fdevname[i] = '\0';
shortened = 1;
}
if (!shortened)
fdevname = strdup("the full disk");
if (start_lba == 0ULL)
return 0;
if (start_lba == START_LBA_UNKNOWN || fd_is_raid(fd)) {
fprintf(stderr, "%s is a RAID device: please specify an absolute LBA of a raw member device instead (raid1 only)\n", devname);
} else if (msg) {
fprintf(stderr, "%s\n", msg);
} else {
fprintf(stderr, "Device %s has non-zero LBA starting offset of %llu.\n", devname, start_lba);
fprintf(stderr, "Please use an absolute LBA with the /dev/ entry for the raw device, rather than a partition or raid name.\n");
fprintf(stderr, "%s is probably a partition of %s (?)\n", devname, fdevname);
fprintf(stderr, "The absolute LBA of sector %llu from %s should be %llu\n", lba, devname, start_lba + lba);
}
fprintf(stderr, "Aborting.\n");
exit(EINVAL);
}
static __u16 *get_dco_identify_data (int fd, int quietly)
{
static __u8 args[4+512];
__u16 *dco = (void *)(args + 4);
int i;
memset(args, 0, sizeof(args));
args[0] = ATA_OP_DCO;
args[2] = 0xc2;
args[3] = 1;
if (do_drive_cmd(fd, args, 0)) {
if (!quietly)
perror(" HDIO_DRIVE_CMD(dco_identify) failed");
return NULL;
} else {
/* byte-swap the little-endian DCO data to match byte-order on host CPU */
for (i = 0; i < 0x100; ++i)
__le16_to_cpus(&dco[i]);
//dump_sectors(dco, 1);
return dco;
}
}