/*
* Copyright (c) 2017-2018 Douglas Gilbert.
* All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the BSD_LICENSE file.
*
* The utility can send six variants of the SCSI WRITE command: (normal)
* WRITE(16 or 32), WRITE ATOMIC(16 or 32), ORWRITE(16 or 32),
* WRITE SAME(16 or 32), WRITE SCATTERED (16 or 32) or WRITE
* STREAM(16 or 32).
*/
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <ctype.h>
#include <sys/types.h> /* needed for lseek() */
#include <sys/stat.h>
#include <getopt.h>
#define __STDC_FORMAT_MACROS 1
#include <inttypes.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "sg_lib.h"
#include "sg_pt.h"
#include "sg_cmds_basic.h"
#include "sg_cmds_extra.h"
#include "sg_unaligned.h"
#include "sg_pr2serr.h"
static const char * version_str = "1.19 20180628";
/* Protection Information refers to 8 bytes of extra information usually
* associated with each logical block and is often abbreviated to PI while
* its fields: reference-tag (4 bytes), application-tag (2 bytes) and
* tag-mask (2 bytes) are often abbreviated to RT, AT and TM respectively.
* And the LBA Range Descriptor associated with the WRITE SCATTERED command
* is abbreviated to RD. A degenerate RD is one where length components,
( and perhaps the LBA, are zero; it is not illegal according to T10 but are
* a little tricky to handle when scanning and little extra information
* is provided. */
#define ORWRITE16_OP 0x8b
#define WRITE_16_OP 0x8a
#define WRITE_ATOMIC16_OP 0x9c
#define WRITE_SAME16_OP 0x93
#define SERVICE_ACTION_OUT_16_OP 0x9f /* WRITE SCATTERED (16) uses this */
#define WRITE_SCATTERED16_SA 0x12
#define WRITE_STREAM16_OP 0x9a
#define VARIABLE_LEN_OP 0x7f
#define ORWRITE32_SA 0xe
#define WRITE_32_SA 0xb
#define WRITE_ATOMIC32_SA 0xf
#define WRITE_SAME_SA 0xd
#define WRITE_SCATTERED32_SA 0x11
#define WRITE_STREAM32_SA 0x10
#define WRITE_X_16_LEN 16
#define WRITE_X_32_LEN 32
#define WRITE_X_32_ADD 0x18
#define RCAP10_RESP_LEN 8
#define RCAP16_RESP_LEN 32
#define SENSE_BUFF_LEN 64 /* Arbitrary, could be larger */
#define DEF_TIMEOUT_SECS 120 /* might need more for large NUM */
#define DEF_WR_NUMBLOCKS 0 /* do nothing; for safety */
#define DEF_RT 0xffffffff
#define DEF_AT 0xffff
#define DEF_TM 0xffff
#define EBUFF_SZ 256
#define MAX_NUM_ADDR 128
#ifndef UINT32_MAX
#define UINT32_MAX ((uint32_t)-1)
#endif
#ifndef UINT16_MAX
#define UINT16_MAX ((uint16_t)-1)
#endif
static struct option long_options[] = {
{"32", no_argument, 0, '3'},
{"16", no_argument, 0, '6'},
{"app-tag", required_argument, 0, 'a'},
{"app_tag", required_argument, 0, 'a'},
{"atomic", required_argument, 0, 'A'},
{"bmop", required_argument, 0, 'B'},
{"bs", required_argument, 0, 'b'},
{"combined", required_argument, 0, 'c'},
{"dld", required_argument, 0, 'D'},
{"dpo", no_argument, 0, 'd'},
{"dry-run", no_argument, 0, 'x'},
{"dry_run", no_argument, 0, 'x'},
{"fua", no_argument, 0, 'f'},
{"grpnum", required_argument, 0, 'g'},
{"generation", required_argument, 0, 'G'},
{"help", no_argument, 0, 'h'},
{"in", required_argument, 0, 'i'},
{"lba", required_argument, 0, 'l'},
{"normal", no_argument, 0, 'N'},
{"num", required_argument, 0, 'n'},
{"offset", required_argument, 0, 'o'},
{"or", no_argument, 0, 'O'},
{"quiet", no_argument, 0, 'Q'},
{"ref-tag", required_argument, 0, 'r'},
{"ref_tag", required_argument, 0, 'r'},
{"same", required_argument, 0, 'M'},
{"scat-file", required_argument, 0, 'q'},
{"scat_file", required_argument, 0, 'q'},
{"scat-raw", no_argument, 0, 'R'},
{"scat_raw", no_argument, 0, 'R'},
{"scattered", required_argument, 0, 'S'},
{"stream", required_argument, 0, 'T'},
{"strict", no_argument, 0, 's'},
{"tag-mask", required_argument, 0, 't'},
{"tag_mask", required_argument, 0, 't'},
{"timeout", required_argument, 0, 'I'},
{"unmap", required_argument, 0, 'u'},
{"verbose", no_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"wrprotect", required_argument, 0, 'w'},
{0, 0, 0, 0},
};
struct opts_t {
bool do_16; /* default when --32 not given */
bool do_32;
bool do_anchor; /* from --unmap=U_A , bit 1; WRITE SAME */
bool do_atomic; /* selects WRITE ATOMIC(16 or 32) */
/* --atomic=AB AB --> .atomic_boundary */
bool do_combined; /* -c DOF --> .scat_lbdof */
bool do_or; /* -O ORWRITE(16 or 32) */
bool do_quiet; /* -Q suppress some messages */
bool do_scat_raw;
bool do_same; /* -M WRITE SAME(16 or 32) */
/* --same=NDOB NDOB --> .ndob */
bool do_scattered; /* -S WRITE SCATTERED(16 or 32) */
/* --scattered=RD RD --> .scat_num_lbard */
bool do_stream; /* -T WRITE STREAM(16 or 32) */
/* --stream=ID ID --> .str_id */
bool do_unmap; /* from --unmap=U_A , bit 0; WRITE SAME */
bool do_write_normal; /* -N WRITE (16 or 32) */
bool expect_pi_do; /* expect protection information (PI) which
* is 8 bytes long following each logical
* block in the data out buffer. */
bool dpo; /* "Disable Page Out" bit field */
bool fua; /* "Force Unit Access" bit field */
bool ndob; /* "No Data-Out Buffer" from --same=NDOB */
bool verbose_given;
bool version_given;
int dld; /* "Duration Limit Descrptor" bit mask; bit 0 -->
* DLD0, bit 1 --> DLD1, bit 2 --> DLD2
* only WRITE(16) and WRITE SCATTERED(16) */
int dry_run; /* temporary write when used more than once */
int grpnum; /* "Group Number", 0 to 0x3f */
int help;
int pi_type; /* -1: unknown: 0: type 0 (none): 1: type 1 */
int strict; /* > 0, report then exit on questionable meta data */
int timeout; /* timeout (in seconds) to abort SCSI commands */
int verbose; /* incremented for each -v */
int wrprotect; /* is ORPROTECT field for ORWRITE */
uint8_t bmop; /* bit mask operators for ORWRITE(32) */
uint8_t pgp; /* previous generation processing for ORWRITE(32) */
uint16_t app_tag; /* part of protection information (def: 0xffff) */
uint16_t atomic_boundary; /* when 0 atomic write spans given length */
uint16_t scat_lbdof; /* by construction this must be >= 1 */
uint16_t scat_num_lbard; /* RD from --scattered=RD, number of LBA
* Range Descriptors */
uint16_t str_id; /* (stream ID) is for WRITE STREAM */
uint16_t tag_mask; /* part of protection information (def: 0xffff) */
uint32_t bs; /* logical block size (def: 0). 0 implies use READ
* CAPACITY(10 or 16) to determine */
uint32_t bs_pi_do; /* logical block size plus PI, if any. This value is
* used as the actual block size */
uint32_t if_dlen; /* bytes to read after .if_offset from .if_name,
* if 0 given, read rest of .if_name */
uint32_t numblocks; /* defaults to 0, number of blocks (of user data) to
* write */
uint32_t orw_eog; /* from --generation=EOG,NOG (first argument) */
uint32_t orw_nog; /* from --generation=EOG,NOG (for ORWRITE) */
uint32_t ref_tag; /* part of protection information (def: 0xffffffff) */
uint64_t lba; /* "Logical Block Address", for non-scattered use */
uint64_t if_offset; /* byte offset in .if_name to start reading */
uint64_t tot_lbs; /* from READ CAPACITY */
ssize_t xfer_bytes; /* derived value: bs_pi_do * numblocks */
/* for WRITE SCATTERED .xfer_bytes < do_len */
const char * device_name;
const char * if_name; /* from --in=IF */
const char * scat_filename; /* from --scat-file=SF */
const char * cmd_name; /* e.g. 'Write atomic' */
char cdb_name[24]; /* e.g. 'Write atomic(16)' */
};
static const char * xx_wr_fname = "sg_write_x.bin";
static const uint32_t lbard_sz = 32;
static const char * lbard_str = "LBA range descriptor";
static void
usage(int do_help)
{
if (do_help < 2) {
pr2serr("Usage:\n"
"sg_write_x [--16] [--32] [--app-tag=AT] [--atomic=AB] "
"[--bmop=OP,PGP]\n"
" [--bs=BS] [--combined=DOF] [--dld=DLD] [--dpo] "
"[--dry-run]\n"
" [--fua] [--generation=EOG,NOG] [--grpnum=GN] "
"[--help] --in=IF\n"
" [--lba=LBA,LBA...] [--normal] [--num=NUM,NUM...]\n"
" [--offset=OFF[,DLEN]] [--or] [--quiet] "
"[--ref-tag=RT]\n"
" [--same=NDOB] [--scat-file=SF] [--scat-raw] "
"[--scattered=RD]\n"
" [--stream=ID] [--strict] [--tag-mask=TM] "
"[--timeout=TO]\n"
" [--unmap=U_A] [--verbose] [--version] "
"[--wrprotect=WRP]\n"
" DEVICE\n");
if (1 != do_help) {
pr2serr("\nOr the corresponding short option usage:\n"
"sg_write_x [-6] [-3] [-a AT] [-A AB] [-B OP,PGP] [-b BS] "
"[-c DOF] [-D DLD]\n"
" [-d] [-x] [-f] [-G EOG,NOG] [-g GN] [-h] -i IF "
"[-l LBA,LBA...]\n"
" [-N] [-n NUM,NUM...] [-o OFF[,DLEN]] [-O] [-Q] "
"[-r RT] [-M NDOB]\n"
" [-q SF] [-R] [-S RD] [-T ID] [-s] [-t TM] [-I TO] "
"[-u U_A] [-v]\n"
" [-V] [-w WPR] DEVICE\n"
);
pr2serr("\nUse '-h' or '--help' for more help\n");
return;
}
pr2serr(" where:\n"
" --16|-6 send 16 byte cdb variant (this is "
"default action)\n"
" --32|-3 send 32 byte cdb variant of command "
"(def: 16 byte)\n"
" --app-tag=AT|-a AT expected application tag field "
"(def: 0xffff)\n"
" --atomic=AB|-A AB send WRITE ATOMIC command with AB "
"being its\n"
" Atomic Boundary field (0 to 0xffff)\n"
" --bmop=OP,PGP|-p OP,PGP set BMOP field to OP and "
" Previous\n"
" Generation Processing field "
"to PGP\n"
" --bs=BS|-b BS block size (def: use READ CAPACITY), "
"if power of\n"
" 2: logical block size, otherwise: "
"actual block size\n"
" --combined=DOF|-c DOF scatter list and data combined "
"for WRITE\n"
" SCATTERED, data starting at "
"offset DOF which\n"
" has units of sizeof(LB+PI); "
"sizeof(PI)=8n or 0\n"
" --dld=DLD|-D DLD set duration limit descriptor (dld) "
"bits (def: 0)\n"
" --dpo|-d set DPO (disable page out) field "
"(def: clear)\n"
" --dry-run|-x exit just before sending SCSI write "
"command\n"
" --fua|-f set FUA (force unit access) field "
"(def: clear)\n"
" --generation=EOG,NOG set Expected ORWgeneration field "
"to EOG\n"
" |-G EOG,NOG and New ORWgeneration field to "
"NOG\n"
);
pr2serr(
" --grpnum=GN|-g GN GN is group number field (def: 0, "
"range: 0 to 31)\n"
" --help|-h use multiple times for different "
"usage messages\n"
" --in=IF|-i IF IF is file to fetch NUM blocks of "
"data from.\n"
" Blocks written to DEVICE. 1 or no "
"blocks read\n"
" in the case of WRITE SAME\n"
" --lba=LBA,LBA... list of LBAs (Logical Block Addresses) "
"to start\n"
" |-l LBA,LBA... writes (def: --lba=0). Alternative is "
"--scat-file=SF\n"
" --normal|-N send 'normal' WRITE command (default "
"when no other\n"
" command option given)\n"
" --num=NUM,NUM... NUM is number of logical blocks to "
"write (def:\n"
" |-n NUM,NUM... --num=0). Number of block sent is "
"sum of NUMs\n"
" --offset=OFF[,DLEN] OFF is byte offset in IF to start "
"reading from\n"
" |-o OFF[,DLEN] (def: 0), then read DLEN bytes(def: "
"rest of IF)\n"
" --or|-O send ORWRITE command\n"
" --quiet|-Q suppress some informational messages\n"
" --ref-tag=RT|-r RT expected reference tag field (def: "
"0xffffffff)\n"
" --same=NDOB|-M NDOB send WRITE SAME command. NDOB (no "
"data out buffer)\n"
" can be either 0 (do send buffer) or "
"1 (don't)\n"
" --scat-file=SF|-q SF file containing LBA, NUM pairs, "
"see manpage\n"
" --scat-raw|-R read --scat_file=SF as binary (def: "
"ASCII hex)\n"
" --scattered=RD|-S RD send WRITE SCATTERED command with "
"RD range\n"
" descriptors (RD can be 0 when "
"--combined= given)\n"
" --stream=ID|-T ID send WRITE STREAM command with its "
"STR_ID\n"
" field set to ID\n"
" --strict|-s exit if read less than requested from "
"IF ;\n"
" require variety of WRITE to be given "
"as option\n"
" --tag-mask=TM|-t TM tag mask field (def: 0xffff)\n"
" --timeout=TO|-I TO command timeout (unit: seconds) "
"(def: 120)\n"
" --unmap=U_A|-u U_A 0 clears both UNMAP and ANCHOR bits "
"(default),\n"
" 1 sets UNMAP, 2 sets ANCHOR, 3 sets "
"both\n"
" --verbose|-v increase verbosity\n"
" --version|-V print version string then exit\n"
" --wrprotect=WPR|-w WPR WPR is the WRPROTECT field "
"value (def: 0)\n\n"
"Performs a SCSI WRITE (normal), ORWRITE, WRITE ATOMIC, WRITE "
"SAME, WRITE\nSCATTERED, or WRITE STREAM command. A 16 or 32 "
"byte cdb variant can be\nselected. The --in=IF option (data to "
"be written) is required apart from\nwhen --same=1 (i.e. when "
"NDOB is set). If no WRITE variant option is given\nthen, in "
"the absence of --strict, a (normal) WRITE is performed. Only "
"WRITE\nSCATTERED uses multiple LBAs and NUMs, or a SF file "
"with multiple pairs.\nThe --num=NUM field defaults to 0 (do "
"nothing) for safety. Using '-h'\nmultiple times shows the "
"applicable options for each command variant.\n"
);
} else if (2 == do_help) {
printf("WRITE ATOMIC (16 or 32) applicable options:\n"
" sg_write_x --atomic=AB --in=IF [--16] [--32] [--app-tag=AT] "
"[--bs=BS]\n"
" [--dpo] [--fua] [--grpnum=GN] [--lba=LBA] "
"[--num=NUM]\n"
" [--offset=OFF[,DLEN]] [--ref-tag=RT] [--strict] "
"[--tag-mask=TM]\n"
" [--timeout=TO] [--wrprotect=WRP] DEVICE\n"
"\n"
"normal WRITE (32) applicable options:\n"
" sg_write_x --normal --in=IF --32 [--app-tag=AT] [--bs=BS] "
"[--dpo] [--fua]\n"
" [--grpnum=GN] [--lba=LBA] [--num=NUM] "
"[--offset=OFF[,DLEN]]\n"
" [--ref-tag=RT] [--strict] [--tag-mask=TM] "
"[--timeout=TO]\n"
" [--wrprotect=WRP] DEVICE\n"
"\n"
"normal WRITE (16) applicable options:\n"
" sg_write_x --normal --in=IF [--16] [--bs=BS] [--dld=DLD] "
"[--dpo] [--fua]\n"
" [--grpnum=GN] [--lba=LBA] [--num=NUM] "
"[--offset=OFF[,DLEN]]\n"
" [--strict] [--timeout=TO] [--verbose] "
"[--wrprotect=WRP] DEVICE\n"
"\n"
"ORWRITE (32) applicable options:\n"
" sg_write_x --or --in=IF --32 [--bmop=OP,PGP] [--bs=BS] "
"[--dpo] [--fua]\n"
" [--generation=EOG,NOG] [--grpnum=GN] [--lba=LBA] "
"[--num=NUM]\n"
" [--offset=OFF{,DLEN]] [--strict] [--timeout=TO]\n"
" [--wrprotect=ORP] DEVICE\n"
"\n"
"ORWRITE (16) applicable options:\n"
" sg_write_x --or --in=IF [--16] [--bs=BS] [--dpo] [--fua] "
"[--grpnum=GN]\n"
" [--lba=LBA] [--num=NUM] [--offset=OFF[,DLEN]] "
"[--strict]\n"
" [--timeout=TO] [--wrprotect=ORP] DEVICE\n"
"\n"
);
} else if (3 == do_help) {
printf("WRITE SAME (32) applicable options:\n"
" sg_write_x --same=NDOB --32 [--app-tag=AT] [--bs=BS] "
"[--grpnum=GN]\n"
" [--in=IF] [--lba=LBA] [--num=NUM] "
"[--offset=OFF[,DLEN]]\n"
" [--ref-tag=RT] [--strict] [--tag-mask=TM] "
"[--timeout=TO]\n"
" [--unmap=U_A] [--wrprotect=WRP] DEVICE\n"
"\n"
"WRITE SCATTERED (32) applicable options:\n"
" sg_write_x --scattered --in=IF --32 [--app-tag=AT] "
"[--bs=BS]\n"
" [--combined=DOF] [--dpo] [--fua] [--grpnum=GN]\n"
" [--lba=LBA,LBA...] [--num=NUM,NUM...] "
"[--offset=OFF[,DLEN]]\n"
" [--ref-tag=RT] [--scat-file=SF] [--scat-raw] "
"[--strict]\n"
" [--tag-mask=TM] [--timeout=TO] [--wrprotect=WRP] "
"DEVICE\n"
"\n"
"WRITE SCATTERED (16) applicable options:\n"
" sg_write_x --scattered --in=IF [--bs=BS] [--combined=DOF] "
"[--dld=DLD]\n"
" [--dpo] [--fua] [--grpnum=GN] [--lba=LBA,LBA...]\n"
" [--num=NUM,NUM...] [--offset=OFF[,DLEN]] "
"[--scat-raw]\n"
" [--scat-file=SF] [--strict] [--timeout=TO] "
"[--wrprotect=WRP]\n"
" DEVICE\n"
"\n"
"WRITE STREAM (32) applicable options:\n"
" sg_write_x --stream=ID --in=IF --32 [--app-tag=AT] "
"[--bs=BS] [--dpo]\n"
" [--fua] [--grpnum=GN] [--lba=LBA] [--num=NUM]\n"
" [--offset=OFF[,DLEN]] [--ref-tag=RT] [--strict] "
"[--tag-mask=TM]\n"
" [--timeout=TO] [--verbose] [--wrprotect=WRP] "
"DEVICE\n"
"\n"
"WRITE STREAM (16) applicable options:\n"
" sg_write_x --stream=ID --in=IF [--16] [--bs=BS] [--dpo] "
"[--fua]\n"
" [--grpnum=GN] [--lba=LBA] [--num=NUM] "
"[--offset=OFF[,DLEN]]\n"
" [--strict] [--timeout=TO] [--wrprotect=WRP] "
"DEVICE\n"
"\n"
);
} else {
printf("Notes:\n"
" - all 32 byte cdb variants, apart from ORWRITE(32), need type "
"1, 2, or 3\n"
" protection information active on the DEVICE\n"
" - all commands can take one or more --verbose (-v) options "
"and/or the\n"
" --dry-run option\n"
" - all WRITE X commands will accept --scat-file=SF and "
"optionally --scat-raw\n"
" options but only the first lba,num pair is used (any "
"more are ignored)\n"
" - when '--rscat-aw --scat-file=SF' are used then the binary "
"format expected in\n"
" SF is as defined for the WRITE SCATTERED commands. "
"That is 32 bytes\n"
" of zeros followed by the first LBA range descriptor "
"followed by the\n"
" second LBA range descriptor, etc. Each LBA range "
"descriptor is 32 bytes\n"
" long with an 8 byte LBA at offset 0 and a 4 byte "
"number_of_logical_\n"
" blocks at offset 8 (both big endian). The 'pad' following "
"the last LBA\n"
" range descriptor does not need to be given\n"
" - WRITE SCATTERED(32) additionally has expected initial "
"LB reference tag,\n"
" application tag and LB application tag mask fields in the "
"LBA range\n"
" descriptor. If --strict is given then all reserved fields "
"are checked\n"
" for zeros, an error is generated for non zero bytes.\n"
" - when '--lba=LBA,LBA...' is used on commands other than "
"WRITE SCATTERED\n"
" then only the first LBA value is used.\n"
" - when '--num=NUM,NUM...' is used on commands other than "
"WRITE SCATTERED\n"
" then only the first NUM value is used.\n"
" - whenever '--lba=LBA,LBA...' is used then "
"'--num=NUM,NUM...' should\n"
" also be used. Also they should have the same number of "
"elements.\n"
);
}
}
/* Returns 0 if successful, else sg3_utils error code. */
static int
bin_read(int fd, uint8_t * up, uint32_t len, const char * fname)
{
int res, err;
res = read(fd, up, len);
if (res < 0) {
err = errno;
pr2serr("Error doing read of %s file: %s\n", fname,
safe_strerror(err));
return sg_convert_errno(err);
}
if ((uint32_t)res < len) {
pr2serr("Short (%u) read of %s file, wanted %u\n", (unsigned int)res,
fname, len);
return SG_LIB_FILE_ERROR;
}
return 0;
}
/* Returns true if num_of_f_chars of ASCII 'f' or 'F' characters are found
* in sequence. Any leading "0x" or "0X" is ignored; otherwise false is
* returned (and the comparison stops when the first mismatch is found).
* For example a sequence of 'f' characters in a null terminated C string
* that is two characters shorter than the requested num_of_f_chars will
* compare the null character in the string with 'f', find them unequal,
* stop comparing and return false. */
static bool
all_ascii_f_s(const char * cp, int num_of_f_chars)
{
if ((NULL == cp) || (num_of_f_chars < 1))
return false; /* define degenerate cases */
if (('0' == cp[0]) && (('x' == cp[1]) || ('X' == cp[1])))
cp += 2;
for ( ; num_of_f_chars >= 0 ; --num_of_f_chars, ++cp) {
if ('F' != toupper(*cp))
return false;
}
return true;
}
/* Read numbers (up to 64 bits in size) from command line (comma (or
* (single) space) separated list). Assumed decimal unless prefixed
* by '0x', '0X' or contains trailing 'h' or 'H' (which indicate hex).
* Returns 0 if ok, or 1 if error. */
static int
build_lba_arr(const char * inp, uint64_t * lba_arr, uint32_t * lba_arr_len,
int max_arr_len)
{
int in_len, k;
int64_t ll;
const char * lcp;
char * cp;
char * c2p;
if ((NULL == inp) || (NULL == lba_arr) ||
(NULL == lba_arr_len))
return 1;
lcp = inp;
in_len = strlen(inp);
if (0 == in_len)
*lba_arr_len = 0;
if ('-' == inp[0]) { /* read from stdin */
pr2serr("'--lba' cannot be read from stdin\n");
return 1;
} else { /* list of numbers (default decimal) on command line */
k = strspn(inp, "0123456789aAbBcCdDeEfFhHxXiIkKmMgGtTpP, ");
if (in_len != k) {
pr2serr("build_lba_arr: error at pos %d\n", k + 1);
return 1;
}
for (k = 0; k < max_arr_len; ++k) {
ll = sg_get_llnum(lcp);
if (-1 != ll) {
lba_arr[k] = (uint64_t)ll;
cp = (char *)strchr(lcp, ',');
c2p = (char *)strchr(lcp, ' ');
if (NULL == cp)
cp = c2p;
if (NULL == cp)
break;
if (c2p && (c2p < cp))
cp = c2p;
lcp = cp + 1;
} else {
pr2serr("build_lba_arr: error at pos %d\n",
(int)(lcp - inp + 1));
return 1;
}
}
*lba_arr_len = (uint32_t)(k + 1);
if (k == max_arr_len) {
pr2serr("build_lba_arr: array length exceeded\n");
return 1;
}
}
return 0;
}
/* Read numbers (up to 32 bits in size) from command line (comma (or
* (single) space) separated list). Assumed decimal unless prefixed
* by '0x', '0X' or contains trailing 'h' or 'H' (which indicate hex).
* Returns 0 if ok, else a sg3_utils error code is returned. */
static int
build_num_arr(const char * inp, uint32_t * num_arr, uint32_t * num_arr_len,
int max_arr_len)
{
int in_len, k;
const char * lcp;
int64_t ll;
char * cp;
char * c2p;
if ((NULL == inp) || (NULL == num_arr) ||
(NULL == num_arr_len))
return SG_LIB_LOGIC_ERROR;
lcp = inp;
in_len = strlen(inp);
if (0 == in_len)
*num_arr_len = 0;
if ('-' == inp[0]) { /* read from stdin */
pr2serr("'--len' cannot be read from stdin\n");
return SG_LIB_SYNTAX_ERROR;
} else { /* list of numbers (default decimal) on command line */
k = strspn(inp, "0123456789aAbBcCdDeEfFhHxXiIkKmMgGtTpP, ");
if (in_len != k) {
pr2serr("%s: error at pos %d\n", __func__, k + 1);
return SG_LIB_SYNTAX_ERROR;
}
for (k = 0; k < max_arr_len; ++k) {
ll = sg_get_llnum(lcp);
if (-1 != ll) {
if (ll > UINT32_MAX) {
pr2serr("%s: number exceeds 32 bits at pos %d\n",
__func__, (int)(lcp - inp + 1));
return SG_LIB_SYNTAX_ERROR;
}
num_arr[k] = (uint32_t)ll;
cp = (char *)strchr(lcp, ',');
c2p = (char *)strchr(lcp, ' ');
if (NULL == cp)
cp = c2p;
if (NULL == cp)
break;
if (c2p && (c2p < cp))
cp = c2p;
lcp = cp + 1;
} else {
pr2serr("%s: error at pos %d\n", __func__,
(int)(lcp - inp + 1));
return SG_LIB_SYNTAX_ERROR;
}
}
*num_arr_len = (uint32_t)(k + 1);
if (k == max_arr_len) {
pr2serr("%s: array length exceeded\n", __func__);
return SG_LIB_SYNTAX_ERROR;
}
}
return 0;
}
/* Tries to parse LBA,NUM[,RT,AP,TM] on one line, comma separated. Returns
* 0 if parsed ok, else 999 if nothing parsed, else error (currently always
* SG_LIB_SYNTAX_ERROR). If protection information fields not given, then
* default values are given (i.e. all 0xff bytes). Ignores all spaces and
* tabs and everything after '#' on lcp (assumed to be an ASCII line that
* is null terminated). If successful and 'up' is non NULL then writes a
* LBA range descriptor starting at 'up'. */
static int
parse_scat_pi_line(const char * lcp, uint8_t * up, uint32_t * sum_num)
{
bool ok;
int k;
int64_t ll;
const char * cp;
const char * bp;
char c[1024];
bp = c;
cp = strchr(lcp, '#');
lcp += strspn(lcp, " \t");
if (('\0' == *lcp) || (cp && (lcp >= cp)))
return 999; /* blank line or blank prior to first '#' */
if (cp) { /* copy from first non whitespace ... */
memcpy(c, lcp, cp - lcp); /* ... to just prior to first '#' */
c[cp - lcp] = '\0';
} else
strcpy(c, lcp); /* ... to end of line, including null */
ll = sg_get_llnum(bp);
ok = ((-1 != ll) || all_ascii_f_s(bp, 16));
if (! ok) {
pr2serr("%s: error reading LBA (first) item on ", __func__);
return SG_LIB_SYNTAX_ERROR;
}
if (up)
sg_put_unaligned_be64((uint64_t)ll, up + 0);
ok = false;
cp = strchr(bp, ',');
if (cp) {
bp = cp + 1;
if (*bp) {
ll = sg_get_llnum(bp);
if (-1 != ll)
ok = true;
}
}
if ((! ok) || (ll > UINT32_MAX)) {
pr2serr("%s: error reading NUM (second) item on ", __func__);
return SG_LIB_SYNTAX_ERROR;
}
if (up)
sg_put_unaligned_be32((uint32_t)ll, up + 8);
if (sum_num)
*sum_num += (uint32_t)ll;
/* now for 3 PI items */
for (k = 0; k < 3; ++k) {
ok = true;
cp = strchr(bp, ',');
if (NULL == cp)
break;
bp = cp + 1;
if (*bp) {
cp += strspn(bp, " \t");
if ('\0' == *cp)
break;
else if (',' == *cp) {
if (0 == k)
ll = DEF_RT;
else
ll = DEF_AT; /* DEF_AT and DEF_TM have same value */
} else {
ll = sg_get_llnum(bp);
if (-1 == ll)
ok = false;
}
}
if (! ok) {
pr2serr("%s: error reading item %d NUM item on ", __func__,
k + 3);
break;
}
switch (k) {
case 0:
if (ll > UINT32_MAX) {
pr2serr("%s: error with item 3, >0xffffffff; on ", __func__);
ok = false;
} else if (up)
sg_put_unaligned_be32((uint32_t)ll, up + 12);
break;
case 1:
if (ll > UINT16_MAX) {
pr2serr("%s: error with item 4, >0xffff; on ", __func__);
ok = false;
} else if (up)
sg_put_unaligned_be16((uint16_t)ll, up + 16);
break;
case 2:
if (ll > UINT16_MAX) {
pr2serr("%s: error with item 5, >0xffff; on ", __func__);
ok = false;
} else if (up)
sg_put_unaligned_be16((uint16_t)ll, up + 18);
break;
default:
pr2serr("%s: k=%d should not be >= 3\n", __func__, k);
ok = false;
break;
}
if (! ok)
break;
}
if (! ok)
return SG_LIB_SYNTAX_ERROR;
for ( ; k < 3; ++k) {
switch (k) {
case 0:
if (up)
sg_put_unaligned_be32((uint32_t)DEF_RT, up + 12);
break;
case 1:
if (up)
sg_put_unaligned_be16((uint16_t)DEF_AT, up + 16);
break;
case 2:
if (up)
sg_put_unaligned_be16((uint16_t)DEF_TM, up + 18);
break;
default:
pr2serr("%s: k=%d should not be >= 3\n", __func__, k);
ok = false;
break;
}
}
return ok ? 0 : SG_LIB_SYNTAX_ERROR;
}
/* Read pairs or quintets from a scat_file and places them in a T10 scatter
* list array is built starting at at t10_scat_list_out (i.e. as per T10 the
* first 32 bytes are zeros followed by the first LBA range descriptor (also
* 32 bytes long) then the second LBA range descriptor, etc. The pointer
* t10_scat_list_out may be NULL in which case the T10 list array is not
* built but all other operations take place; this can be useful for sizing
* how large the area holding that list needs to be. The max_list_blen may
* also be 0. If do_16 is true then only LBA,NUM pairs are expected,
* loosely formatted with numbers found alternating between LBA and NUM, with
* an even number of elements required overall. If do_16 is false then a
* stricter format for quintets is expected: each non comment line should
* contain: LBA,NUM[,RT,AT,TM] . If RT,AT,TM are not given then they assume
* their defaults (i.e. 0xffffffff, 0xffff, 0xffff). Each number (64 bits for
* the LBA, 32 bits for NUM and RT, 16 bit for AT and TM) may be a comma,
* space or tab separated list. Assumed decimal unless prefixed by '0x', '0X'
* or contains trailing 'h' or 'H' (which indicate hex). Returns 0 if ok,
* else error number. If ok also yields the number of LBA range descriptors
* written in num_scat_elems and the sum of NUM elements found. Note that
* sum_num is not initialized to 0. If parse_one is true then exits
* after one LBA range descriptor is decoded. */
static int
build_t10_scat(const char * scat_fname, bool do_16, bool parse_one,
uint8_t * t10_scat_list_out, uint16_t * num_scat_elems,
uint32_t * sum_num, uint32_t max_list_blen)
{
bool have_stdin = false;
bool bit0, ok;
int off = 0;
int in_len, k, j, m, n, res, err;
int64_t ll;
char * lcp;
uint8_t * up = t10_scat_list_out;
FILE * fp = NULL;
char line[1024];
if (up) {
if (max_list_blen < 64) {
pr2serr("%s: t10_scat_list_out is too short\n", __func__);
return SG_LIB_SYNTAX_ERROR;
}
memset(up, 0, max_list_blen);
}
n = lbard_sz;
have_stdin = ((1 == strlen(scat_fname)) && ('-' == scat_fname[0]));
if (have_stdin) {
fp = stdin;
scat_fname = "<stdin>";
} else {
fp = fopen(scat_fname, "r");
if (NULL == fp) {
err = errno;
pr2serr("%s: unable to open %s: %s\n", __func__, scat_fname,
safe_strerror(err));
return sg_convert_errno(err);
}
}
for (j = 0; j < 1024; ++j) {/* loop over lines in file */
if ((max_list_blen > 0) && ((n + lbard_sz) > max_list_blen))
goto fini;
if (NULL == fgets(line, sizeof(line), fp))
break;
// could improve with carry_over logic if sizeof(line) too small
in_len = strlen(line);
if (in_len > 0) {
if ('\n' == line[in_len - 1]) {
--in_len;
line[in_len] = '\0';
}
}
if (in_len < 1)
continue;
lcp = line;
m = strspn(lcp, " \t");
if (m == in_len)
continue;
lcp += m;
in_len -= m;
if ('#' == *lcp) /* Comment? If so skip rest of line */
continue;
k = strspn(lcp, "0123456789aAbBcCdDeEfFhHxXiIkKmMgGtTpP ,\t");
if ((k < in_len) && ('#' != lcp[k])) {
pr2serr("%s: syntax error in %s at line %d, pos %d\n",
__func__, scat_fname, j + 1, m + k + 1);
goto bad_exit;
}
if (! do_16) {
res = parse_scat_pi_line(lcp, up ? (up + n) : up, sum_num);
if (999 == res)
;
else if (0 == res) {
n += lbard_sz;
if (parse_one)
goto fini;
} else {
if (SG_LIB_CAT_NOT_READY == res)
goto bad_mem_exit;
pr2serr("line %d in %s\n", j + 1, scat_fname);
goto bad_exit;
}
continue;
}
for (k = 0; k < 1024; ++k) {
ll = sg_get_llnum(lcp);
ok = ((-1 != ll) || all_ascii_f_s(lcp, 16));
if (ok) {
bit0 = !! (0x1 & (off + k));
if (bit0) {
if (ll > UINT32_MAX) {
pr2serr("%s: number exceeds 32 bits in line %d, at "
"pos %d of %s\n", __func__, j + 1,
(int)(lcp - line + 1), scat_fname);
goto bad_exit;
}
if (up)
sg_put_unaligned_be32((uint32_t)ll, up + n + 8);
if (sum_num)
*sum_num += (uint32_t)ll;
n += lbard_sz; /* skip to next LBA range descriptor */
if (parse_one)
goto fini;
} else {
if (up)
sg_put_unaligned_be64((uint64_t)ll, up + n + 0);
}
lcp = strpbrk(lcp, " ,\t");
if (NULL == lcp)
break;
lcp += strspn(lcp, " ,\t");
if ('\0' == *lcp)
break;
} else { /* no valid number found */
if ('#' == *lcp) {
--k;
break;
}
pr2serr("%s: error on line %d, at pos %d\n", __func__, j + 1,
(int)(lcp - line + 1));
goto bad_exit;
}
} /* inner for loop(k) over line elements */
off += (k + 1);
} /* outer for loop(j) over lines */
if (do_16 && (0x1 & off)) {
pr2serr("%s: expect LBA,NUM pairs but decoded odd number\n from "
"%s\n", __func__, scat_fname);
goto bad_exit;
}
fini:
*num_scat_elems = (n / lbard_sz) - 1;
if (fp && (stdin != fp))
fclose(fp);
return 0;
bad_exit:
if (fp && (stdin != fp))
fclose(fp);
return SG_LIB_SYNTAX_ERROR;
bad_mem_exit:
if (fp && (stdin != fp))
fclose(fp);
return SG_LIB_CAT_NOT_READY; /* flag output buffer too small */
}
static bool
is_pi_default(const struct opts_t * op)
{
return ((DEF_AT == op->app_tag) && (DEF_RT == op->ref_tag) &&
(DEF_TM == op->tag_mask));
}
/* Given a t10 parameter list header (32 zero bytes) for WRITE SCATTERED
* (16 or 32) followed by n RDs with a total length of at least
* max_lbrds_blen bytes, find "n" and increment where num_lbard points
* n times. Further get the LBA length component from each RD and add each
* length into where sum_num points. Note: the caller probably wants to zero
* where num_lbard and sum_num point before invoking this function. If all
* goes well return true, else false. If a degenerate RD is detected then
* if 'RD' (from --scattered=RD) is 0 then stop looking for further RDs;
* otherwise keep going. Currently overlapping LBA range descriptors are no
* checked for. If op->strict > 0 then the first 32 bytes are checked for
* zeros; any non-zero bytes will report to stderr, stop the check and
* return false. If op->strict > 0 then the trailing 20 or 12 bytes (only
* 12 if RT, AT and TM fields (for PI) are present) are checked for zeros;
* any non-zero bytes cause the same action as the previous check. If
* the number of RDs (when 'RD' from --scattered=RD > 0) is greater than
* the number of RDs found then a report is sent to stderr and if op->strict
* > 0 then returns false, else returns true. */
static bool
check_lbrds(const uint8_t * up, uint32_t max_lbrds_blen,
const struct opts_t * op, uint16_t * num_lbard,
uint32_t * sum_num)
{
bool ok;
int k, j, n;
const int max_lbrd_start = max_lbrds_blen - lbard_sz;
int vb = op->verbose;
if (op->strict) {
if (max_lbrds_blen < lbard_sz) {
pr2serr("%s: %ss too short (%d < 32)\n", __func__, lbard_str,
max_lbrds_blen);
return false;
}
if (! sg_all_zeros(up, lbard_sz)) {
pr2serr("%s: first 32 bytes of WRITE SCATTERED data-out buffer "
"should be zero.\nFound non-zero byte.\n", __func__);
return false;
}
}
if (max_lbrds_blen < (2 * lbard_sz)) {
*num_lbard = 0;
return true;
}
n = op->scat_num_lbard ? (int)op->scat_num_lbard : -1;
for (k = lbard_sz, j = 0; k < max_lbrd_start; k += lbard_sz, ++j) {
if ((n < 0) && sg_all_zeros(up + k + 0, 12)) { /* degenerate LBA */
if (vb) /* ... range descriptor terminator if --scattered=0 */
pr2serr("%s: degenerate %s stops scan at k=%d (num_rds=%d)\n",
__func__, lbard_str, k, j);
break;
}
*sum_num += sg_get_unaligned_be32(up + k + 8);
*num_lbard += 1;
if (op->strict) {
ok = true;
if (op->wrprotect) {
if (! sg_all_zeros(up + k + 20, 12))
ok = false;
} else if (! sg_all_zeros(up + k + 12, 20))
ok = false;
if (! ok) {
pr2serr("%s: %s %d non zero in reserved fields\n", __func__,
lbard_str, (k / lbard_sz) - 1);
return false;
}
}
if (n >= 0) {
if (--n <= 0)
break;
}
}
if ((k < max_lbrd_start) && op->strict) { /* check pad all zeros */
k += lbard_sz;
j = max_lbrds_blen - k;
if (! sg_all_zeros(up + k, j)) {
pr2serr("%s: pad (%d bytes) following %ss is non zero\n",
__func__, j, lbard_str);
return false;
}
}
if (vb > 2)
pr2serr("%s: about to return true, num_lbard=%u, sum_num=%u "
"[k=%d, n=%d]\n", __func__, *num_lbard, *sum_num, k, n);
return true;
}
static int
sum_num_lbards(const uint8_t * up, int num_lbards)
{
int sum = 0;
int k, n;
for (k = 0, n = lbard_sz; k < num_lbards; ++k, n += lbard_sz)
sum += sg_get_unaligned_be32(up + n + 8);
return sum;
}
/* Returns 0 if successful, else sg3_utils error code. */
static int
do_write_x(int sg_fd, const void * dataoutp, int dout_len,
const struct opts_t * op)
{
int k, ret, res, sense_cat, cdb_len, vb, err;
uint8_t x_cdb[WRITE_X_32_LEN]; /* use for both lengths */
uint8_t sense_b[SENSE_BUFF_LEN];
struct sg_pt_base * ptvp;
memset(x_cdb, 0, sizeof(x_cdb));
vb = op->verbose;
cdb_len = op->do_16 ? WRITE_X_16_LEN : WRITE_X_32_LEN;
if (16 == cdb_len) {
if (! op->do_scattered)
sg_put_unaligned_be64(op->lba, x_cdb + 2);
x_cdb[14] = (op->grpnum & 0x1f);
} else {
x_cdb[0] = VARIABLE_LEN_OP;
x_cdb[6] = (op->grpnum & 0x1f);
x_cdb[7] = WRITE_X_32_ADD;
if (! op->do_scattered)
sg_put_unaligned_be64(op->lba, x_cdb + 12);
}
if (op->do_write_normal) {
if (16 == cdb_len) {
x_cdb[0] = WRITE_16_OP;
x_cdb[1] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[1] |= 0x10;
if (op->fua)
x_cdb[1] |= 0x8;
if (op->dld) {
if (op->dld & 1)
x_cdb[14] |= 0x40;
if (op->dld & 2)
x_cdb[14] |= 0x80;
if (op->dld & 4)
x_cdb[1] |= 0x1;
}
sg_put_unaligned_be32(op->numblocks, x_cdb + 10);
} else { /* 32 byte WRITE */
sg_put_unaligned_be16((uint16_t)WRITE_32_SA, x_cdb + 8);
x_cdb[10] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[10] |= 0x10;
if (op->fua)
x_cdb[10] |= 0x8;
sg_put_unaligned_be32(op->ref_tag, x_cdb + 20);
sg_put_unaligned_be16(op->app_tag, x_cdb + 24);
sg_put_unaligned_be16(op->tag_mask, x_cdb + 26);
sg_put_unaligned_be32(op->numblocks, x_cdb + 28);
}
} else if (op->do_atomic) {
if (16 == cdb_len) {
if (op->numblocks > UINT16_MAX) {
pr2serr("Need WRITE ATOMIC(32) since blocks exceed 65535\n");
return SG_LIB_SYNTAX_ERROR;
}
x_cdb[0] = WRITE_ATOMIC16_OP;
x_cdb[1] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[1] |= 0x10;
if (op->fua)
x_cdb[1] |= 0x8;
sg_put_unaligned_be16(op->atomic_boundary, x_cdb + 10);
sg_put_unaligned_be16((uint16_t)op->numblocks, x_cdb + 12);
} else { /* 32 byte WRITE ATOMIC */
sg_put_unaligned_be16(op->atomic_boundary, x_cdb + 4);
sg_put_unaligned_be16((uint16_t)WRITE_ATOMIC32_SA, x_cdb + 8);
x_cdb[10] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[10] |= 0x10;
if (op->fua)
x_cdb[10] |= 0x8;
sg_put_unaligned_be32(op->ref_tag, x_cdb + 20);
sg_put_unaligned_be16(op->app_tag, x_cdb + 24);
sg_put_unaligned_be16(op->tag_mask, x_cdb + 26);
sg_put_unaligned_be32(op->numblocks, x_cdb + 28);
}
} else if (op->do_or) { /* ORWRITE(16 or 32) */
if (16 == cdb_len) {
x_cdb[0] = ORWRITE16_OP;
x_cdb[1] = ((op->wrprotect & 0x7) << 5); /* actually ORPROTECT */
if (op->dpo)
x_cdb[1] |= 0x10;
if (op->fua)
x_cdb[1] |= 0x8;
sg_put_unaligned_be32(op->numblocks, x_cdb + 10);
} else {
x_cdb[2] = op->bmop;
x_cdb[3] = op->pgp;
sg_put_unaligned_be16((uint16_t)ORWRITE32_SA, x_cdb + 8);
x_cdb[10] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[10] |= 0x10;
if (op->fua)
x_cdb[10] |= 0x8;
sg_put_unaligned_be32(op->orw_eog, x_cdb + 20);
sg_put_unaligned_be32(op->orw_nog, x_cdb + 24);
sg_put_unaligned_be32(op->numblocks, x_cdb + 28);
}
} else if (op->do_same) {
if (16 == cdb_len) {
x_cdb[0] = WRITE_SAME16_OP;
x_cdb[1] = ((op->wrprotect & 0x7) << 5);
if (op->do_anchor)
x_cdb[1] |= 0x10;
if (op->do_unmap)
x_cdb[1] |= 0x8;
if (op->ndob)
x_cdb[1] |= 0x1;
sg_put_unaligned_be32(op->numblocks, x_cdb + 10);
} else {
sg_put_unaligned_be16((uint16_t)WRITE_SAME_SA, x_cdb + 8);
x_cdb[10] = ((op->wrprotect & 0x7) << 5);
if (op->do_anchor)
x_cdb[10] |= 0x10;
if (op->do_unmap)
x_cdb[10] |= 0x8;
if (op->ndob)
x_cdb[10] |= 0x1;
/* Expected initial logical block reference tag */
sg_put_unaligned_be32(op->ref_tag, x_cdb + 20);
sg_put_unaligned_be16(op->app_tag, x_cdb + 24);
sg_put_unaligned_be16(op->tag_mask, x_cdb + 26);
sg_put_unaligned_be32(op->numblocks, x_cdb + 28);
}
} else if (op->do_scattered) {
if (16 == cdb_len) {
x_cdb[0] = SERVICE_ACTION_OUT_16_OP;
x_cdb[1] = WRITE_SCATTERED16_SA;
x_cdb[2] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[2] |= 0x10;
if (op->fua)
x_cdb[2] |= 0x8;
if (op->dld) {
if (op->dld & 1)
x_cdb[14] |= 0x40;
if (op->dld & 2)
x_cdb[14] |= 0x80;
if (op->dld & 4)
x_cdb[2] |= 0x1;
}
sg_put_unaligned_be16(op->scat_lbdof, x_cdb + 4);
sg_put_unaligned_be16(op->scat_num_lbard, x_cdb + 8);
/* Spec says Buffer Transfer Length field (BTL) is the number
* of (user) Logical Blocks in the data-out buffer and that BTL
* may be 0. So the total data-out buffer length in bytes is:
* (scat_lbdof + numblocks) * actual_block_size */
sg_put_unaligned_be32(op->numblocks, x_cdb + 10);
} else {
sg_put_unaligned_be16((uint16_t)WRITE_SCATTERED32_SA, x_cdb + 8);
x_cdb[10] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[10] |= 0x10;
if (op->fua)
x_cdb[10] |= 0x8;
sg_put_unaligned_be16(op->scat_lbdof, x_cdb + 12);
sg_put_unaligned_be16(op->scat_num_lbard, x_cdb + 16);
sg_put_unaligned_be32(op->numblocks, x_cdb + 28);
/* ref_tag, app_tag and tag_mask placed in scatter list */
}
} else if (op->do_stream) {
if (16 == cdb_len) {
x_cdb[0] = WRITE_STREAM16_OP;
x_cdb[1] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[1] |= 0x10;
if (op->fua)
x_cdb[1] |= 0x8;
sg_put_unaligned_be16(op->str_id, x_cdb + 10);
sg_put_unaligned_be16((uint16_t)op->numblocks, x_cdb + 12);
} else {
sg_put_unaligned_be16(op->str_id, x_cdb + 4);
sg_put_unaligned_be16((uint16_t)WRITE_STREAM32_SA, x_cdb + 8);
x_cdb[10] = ((op->wrprotect & 0x7) << 5);
if (op->dpo)
x_cdb[10] |= 0x10;
if (op->fua)
x_cdb[10] |= 0x8;
sg_put_unaligned_be32(op->ref_tag, x_cdb + 20);
sg_put_unaligned_be16(op->app_tag, x_cdb + 24);
sg_put_unaligned_be16(op->tag_mask, x_cdb + 26);
sg_put_unaligned_be32(op->numblocks, x_cdb + 28);
}
} else {
pr2serr("%s: bad cdb name or length (%d)\n", __func__, cdb_len);
return SG_LIB_SYNTAX_ERROR;
}
if (vb > 1) {
pr2serr(" %s cdb: ", op->cdb_name);
for (k = 0; k < cdb_len; ++k)
pr2serr("%02x ", x_cdb[k]);
pr2serr("\n");
}
if (op->do_scattered && (vb > 2) && (dout_len > 31)) {
uint32_t sod_off = op->bs_pi_do * op->scat_lbdof;
const uint8_t * up = (const uint8_t *)dataoutp;
pr2serr(" %s scatter list, number of %ss: %u\n", op->cdb_name,
lbard_str, op->scat_num_lbard);
pr2serr(" byte offset of data_to_write: %u, dout_len: %d\n",
sod_off, dout_len);
up += lbard_sz; /* step over parameter list header */
for (k = 0; k < (int)op->scat_num_lbard; ++k, up += lbard_sz) {
pr2serr(" desc %d: LBA=0x%" PRIx64 " numblocks=%" PRIu32
"%s", k, sg_get_unaligned_be64(up + 0),
sg_get_unaligned_be32(up + 8), (op->do_16 ? "\n" : " "));
if (op->do_32)
pr2serr("rt=0x%x at=0x%x tm=0x%x\n",
sg_get_unaligned_be32(up + 12),
sg_get_unaligned_be16(up + 16),
sg_get_unaligned_be16(up + 18));
if ((uint32_t)(((k + 2) * lbard_sz) + 20) > sod_off) {
pr2serr("Warning: possible clash of descriptor %u with "
"data_to_write\n", k);
if (op->strict > 1)
return SG_LIB_FILE_ERROR;
}
}
}
if ((vb > 3) && (dout_len > 0)) {
if ((dout_len > 1024) && (vb < 7)) {
pr2serr(" Data-out buffer contents (first 1024 of %u "
"bytes):\n", dout_len);
hex2stdout((const uint8_t *)dataoutp, 1024, 1);
pr2serr(" Above: dout's first 1024 of %u bytes [%s]\n",
dout_len, op->cdb_name);
} else {
pr2serr(" Data-out buffer contents (length=%u):\n", dout_len);
hex2stderr((const uint8_t *)dataoutp, (int)dout_len, 1);
}
}
if (op->dry_run) {
if (vb)
pr2serr("Exit just before sending %s due to --dry-run\n",
op->cdb_name);
if (op->dry_run > 1) {
int w_fd;
w_fd = open(xx_wr_fname, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (w_fd < 0) {
err = errno;
perror(xx_wr_fname);
return sg_convert_errno(err);
}
res = write(w_fd, dataoutp, dout_len);
if (res < 0) {
err = errno;
perror(xx_wr_fname);
close(w_fd);
return sg_convert_errno(err);
}
close(w_fd);
printf("Wrote %u bytes to %s", dout_len, xx_wr_fname);
if (op->do_scattered)
printf(", LB data offset: %u\nNumber of %ss: %u\n",
op->scat_lbdof, lbard_str, op->scat_num_lbard);
else
printf("\n");
}
return 0;
}
ptvp = construct_scsi_pt_obj();
if (NULL == ptvp) {
pr2serr("%s: out of memory\n", op->cdb_name);
return sg_convert_errno(ENOMEM);
}
set_scsi_pt_cdb(ptvp, x_cdb, cdb_len);
set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b));
if (dout_len > 0)
set_scsi_pt_data_out(ptvp, (uint8_t *)dataoutp, dout_len);
else if (vb && (! op->ndob))
pr2serr("%s: dout_len==0, so empty dout buffer\n",
op->cdb_name);
res = do_scsi_pt(ptvp, sg_fd, op->timeout, vb);
ret = sg_cmds_process_resp(ptvp, op->cdb_name, res, SG_NO_DATA_IN,
sense_b, true /*noisy */, vb, &sense_cat);
if (-1 == ret)
ret = sg_convert_errno(get_scsi_pt_os_err(ptvp));
else if (-2 == ret) {
switch (sense_cat) {
case SG_LIB_CAT_RECOVERED:
case SG_LIB_CAT_NO_SENSE:
ret = 0;
break;
case SG_LIB_CAT_MEDIUM_HARD:
{
bool valid;
int slen;
uint64_t ull = 0;
slen = get_scsi_pt_sense_len(ptvp);
valid = sg_get_sense_info_fld(sense_b, slen, &ull);
if (valid) {
pr2serr("Medium or hardware error starting at ");
if (op->do_scattered) {
if (0 == ull)
pr2serr("%s=<not reported>\n", lbard_str);
else
pr2serr("%s=%" PRIu64 " (origin 0)\n", lbard_str,
ull - 1);
if (sg_get_sense_cmd_spec_fld(sense_b, slen, &ull)) {
if (0 == ull)
pr2serr(" Number of successfully written "
"%ss is 0 or not reported\n",
lbard_str);
else
pr2serr(" Number of successfully written "
"%ss is %u\n", lbard_str,
(uint32_t)ull);
}
} else
pr2serr("lba=%" PRIu64 " [0x%" PRIx64 "]\n", ull,
ull);
}
}
ret = sense_cat;
break;
default:
ret = sense_cat;
break;
}
} else
ret = 0;
destruct_scsi_pt_obj(ptvp);
return ret;
}
/* Returns 0 if successful, else sg3_utils error code. */
static int
do_read_capacity(int sg_fd, struct opts_t *op)
{
bool prot_en = false;
int res;
int vb = op->verbose;
char b[80];
uint8_t resp_buff[RCAP16_RESP_LEN];
res = sg_ll_readcap_16(sg_fd, false /* pmi */, 0 /* llba */, resp_buff,
RCAP16_RESP_LEN, true, (vb ? (vb - 1): 0));
if (SG_LIB_CAT_UNIT_ATTENTION == res) {
pr2serr("Read capacity(16) unit attention, try again\n");
res = sg_ll_readcap_16(sg_fd, false, 0, resp_buff, RCAP16_RESP_LEN,
true, (vb ? (vb - 1): 0));
}
if (0 == res) {
uint32_t pi_len = 0;
if (vb > 3) {
pr2serr("Read capacity(16) response:\n");
hex2stderr(resp_buff, RCAP16_RESP_LEN, 1);
}
op->bs = sg_get_unaligned_be32(resp_buff + 8);
op->tot_lbs = sg_get_unaligned_be64(resp_buff + 0) + 1;
prot_en = !!(resp_buff[12] & 0x1);
if (prot_en) {
uint32_t pi_exp;
op->pi_type = ((resp_buff[12] >> 1) & 0x7) + 1;
pi_exp = 0xf & (resp_buff[13] >> 4);
pi_len = 8 * (1 << pi_exp);
if (op->wrprotect > 0) {
op->bs_pi_do = op->bs + pi_len;
if (vb > 1)
pr2serr(" For data out buffer purposes the effective "
"block size is %u (lb size\n is %u) because "
"PROT_EN=1, PI_EXP=%u and WRPROTECT>0\n", op->bs,
pi_exp, op->bs_pi_do);
}
} else { /* device formatted to PI type 0 (i.e. none) */
op->pi_type = 0;
if (op->wrprotect > 0) {
if (vb)
pr2serr("--wrprotect (%d) expects PI but %s says it "
"has none\n", op->wrprotect, op->device_name);
if (op->strict)
return SG_LIB_FILE_ERROR;
else if (vb)
pr2serr(" ... continue but could be dangerous\n");
}
}
if (vb) {
uint8_t d[2];
pr2serr("Read capacity(16) response fields:\n");
pr2serr(" Last_LBA=0x%" PRIx64 " LB size: %u (with PI: "
"%u) bytes p_type=%u\n", op->tot_lbs - 1,
op->bs, op->bs + (prot_en ? pi_len : 0),
((resp_buff[12] >> 1) & 0x7));
pr2serr(" prot_en=%u [PI type=%u] p_i_exp=%u lbppb_exp=%u "
"lbpme,rz=%u,", prot_en, op->pi_type,
((resp_buff[13] >> 4) & 0xf), (resp_buff[13] & 0xf),
!!(resp_buff[14] & 0x80));
memcpy(d, resp_buff + 14, 2);
d[0] &= 0x3f;
pr2serr("%u low_ali_lba=%u\n", !!(resp_buff[14] & 0x40),
sg_get_unaligned_be16(d));
}
} else if ((SG_LIB_CAT_INVALID_OP == res) ||
(SG_LIB_CAT_ILLEGAL_REQ == res)) {
if (vb)
pr2serr("Read capacity(16) not supported, try Read "
"capacity(10)\n");
res = sg_ll_readcap_10(sg_fd, false /* pmi */, 0 /* lba */,
resp_buff, RCAP10_RESP_LEN, true,
(vb ? (vb - 1): 0));
if (0 == res) {
if (vb > 3) {
pr2serr("Read capacity(10) response:\n");
hex2stderr(resp_buff, RCAP10_RESP_LEN, 1);
}
op->tot_lbs = sg_get_unaligned_be32(resp_buff + 0) + 1;
op->bs = sg_get_unaligned_be32(resp_buff + 4);
} else {
strcpy(b,"OS error");
if (res > 0)
sg_get_category_sense_str(res, sizeof(b), b, vb);
else
snprintf(b, sizeof(b), "error: %d", res);
pr2serr("Read capacity(10): %s\n", b);
pr2serr("Unable to calculate block size\n");
return (res > 0) ? res : SG_LIB_FILE_ERROR;
}
} else {
if (vb) {
strcpy(b,"OS error");
if (res > 0)
sg_get_category_sense_str(res, sizeof(b), b, vb);
pr2serr("Read capacity(16): %s\n", b);
pr2serr("Unable to calculate block size\n");
}
return (res > 0) ? res : SG_LIB_FILE_ERROR;
}
op->bs_pi_do = op->expect_pi_do ? (op->bs + 8) : op->bs;
return 0;
}
#define WANT_ZERO_EXIT 9999
static const char * const opt_long_ctl_str =
"36a:A:b:B:c:dD:Efg:G:hi:I:l:M:n:No:Oq:Qr:RsS:t:T:u:vVw:x";
/* command line processing, options and arguments. Returns 0 if ok,
* returns WANT_ZERO_EXIT so upper level yields an exist status of zero.
* Other return values (mainly SG_LIB_SYNTAX_ERROR) indicate errors. */
static int
parse_cmd_line(struct opts_t *op, int argc, char *argv[],
const char ** lba_opp, const char ** num_opp)
{
bool fail_if_strict = false;
int c, j;
int64_t ll;
const char * cp;
while (1) {
int opt_ind = 0;
c = getopt_long(argc, argv, opt_long_ctl_str, long_options, &opt_ind);
if (c == -1)
break;
switch (c) {
case '3': /* same as --32 */
op->do_32 = true;
break;
case '6': /* same as --16 */
op->do_16 = true;
break;
case 'a':
j = sg_get_num(optarg);
if ((j < 0) || (j > (int)UINT16_MAX)) {
pr2serr("bad argument to '--app-tag='. Expect 0 to 0xffff "
"inclusive\n");
return SG_LIB_SYNTAX_ERROR;
}
op->app_tag = (uint16_t)j;
break;
case 'A':
j = sg_get_num(optarg);
if ((j < 0) || (j > (int)UINT16_MAX)) {
pr2serr("bad argument to '--atomic='. Expect 0 to 0xffff "
"inclusive\n");
return SG_LIB_SYNTAX_ERROR;
}
op->atomic_boundary = (uint16_t)j;
op->do_atomic = true;
op->cmd_name = "Write atomic";
break;
case 'b': /* logical block size in bytes */
j = sg_get_num(optarg); /* 0 -> look up with READ CAPACITY */
if ((j < 0) || (j > (1 << 28))) {
pr2serr("bad argument to '--bs='. Expect 0 or greater\n");
return SG_LIB_SYNTAX_ERROR;
}
if (j > 0) {
int k;
int m = j;
int highest_ind;
if (j < 512) {
pr2serr("warning: --bs=BS value is < 512 which seems too "
"small, continue\n");
fail_if_strict = true;
}
if (0 != (j % 8)) {
pr2serr("warning: --bs=BS value is not a multiple of 8, "
"unexpected, continue\n");
fail_if_strict = true;
}
for (k = 0, highest_ind = 0; k < 28; ++ k, m >>= 1) {
if (1 & m)
highest_ind = k;
} /* loop should get log_base2(j) */
k = 1 << highest_ind;
if (j == k) { /* j is a power of two; actual and logical
* block size is assumed to be the same */
op->bs = (uint32_t)j;
op->bs_pi_do = op->bs;
} else { /* j is not power_of_two, use as actual LB size */
op->bs = (uint32_t)k; /* power_of_two less than j */
op->bs_pi_do = (uint32_t)j;
}
} else { /* j==0, let READCAP sort this out */
op->bs = 0;
op->bs_pi_do = 0;
}
break;
case 'B': /* --bmop=OP,PGP (for ORWRITE(32)) */
j = sg_get_num(optarg);
if ((j < 0) || (j > 7)) {
pr2serr("bad first argument to '--bmop='\n");
return SG_LIB_SYNTAX_ERROR;
}
op->bmop = (uint8_t)j;
if ((cp = strchr(optarg, ','))) {
j = sg_get_num(cp + 1);
if ((j < 0) || (j > 15)) {
pr2serr("bad second argument to '--bmop='\n");
return SG_LIB_SYNTAX_ERROR;
}
op->pgp = (uint8_t)j;
}
break;
case 'c': /* --combined=DOF for W SCATTERED, DOF: data offset */
j = sg_get_num(optarg);
if ((j < 0) || (j > INT32_MAX)) {
pr2serr("bad argument to '--combined='. Expect 0 to "
"0x7fffffff\n");
return SG_LIB_SYNTAX_ERROR;
}
op->scat_lbdof = (uint16_t)j;
op->do_combined = true;
break;
case 'd':
op->dpo = true;
break;
case 'D':
op->dld = sg_get_num(optarg);
if ((op->dld < 0) || (op->dld > 7)) {
pr2serr("bad argument to '--dld=', expect 0 to 7 "
"inclusive\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
case 'f':
op->fua = true;
break;
case 'g':
op->grpnum = sg_get_num(optarg);
if ((op->grpnum < 0) || (op->grpnum > 63)) {
pr2serr("bad argument to '--grpnum'\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
case 'G': /* --generation=EOG,NOG */
ll = sg_get_llnum(optarg);
if ((ll < 0) || (ll > UINT32_MAX)) {
pr2serr("bad first argument to '--generation='\n");
return SG_LIB_SYNTAX_ERROR;
}
op->orw_eog = (uint32_t)ll;
if ((cp = strchr(optarg, ','))) {
ll = sg_get_llnum(cp + 1);
if ((ll < 0) || (ll > UINT32_MAX)) {
pr2serr("bad second argument to '--generation='\n");
return SG_LIB_SYNTAX_ERROR;
}
op->orw_nog = (uint32_t)ll;
} else {
pr2serr("need two arguments with --generation=EOG,NOG and "
"they must be comma separated\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
case 'h':
++op->help;
break;
case '?':
pr2serr("\n");
usage((op->help > 0) ? op->help : 0);
return SG_LIB_SYNTAX_ERROR;
case 'i':
op->if_name = optarg;
break;
case 'I':
op->timeout = sg_get_num(optarg);
if (op->timeout < 0) {
pr2serr("bad argument to '--timeout='\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
case 'l':
if (*lba_opp) {
pr2serr("only expect '--lba=' option once\n");
return SG_LIB_SYNTAX_ERROR;
}
*lba_opp = optarg;
break;
case 'M': /* WRITE SAME */
j = sg_get_num(optarg);
if ((j < 0) || (j > 1)) {
pr2serr("bad argument to '--same', expect 0 or 1\n");
return SG_LIB_SYNTAX_ERROR;
}
op->ndob = (bool)j;
op->do_same = true;
op->cmd_name = "Write same";
break;
case 'n':
if (*num_opp) {
pr2serr("only expect '--num=' option once\n");
return SG_LIB_SYNTAX_ERROR;
}
*num_opp = optarg;
break;
case 'N':
op->do_write_normal = true;
op->cmd_name = "Write";
break;
case 'o':
ll = sg_get_llnum(optarg);
if (-1 == ll) {
pr2serr("bad first argument to '--offset='\n");
return SG_LIB_SYNTAX_ERROR;
}
op->if_offset = (uint64_t)ll;
if ((cp = strchr(optarg, ','))) {
ll = sg_get_llnum(cp + 1);
if (-1 == ll) {
pr2serr("bad second argument to '--offset='\n");
return SG_LIB_SYNTAX_ERROR;
}
if (ll > UINT32_MAX) {
pr2serr("bad second argument to '--offset=', cannot "
"exceed 32 bits\n");
return SG_LIB_SYNTAX_ERROR;
}
op->if_dlen = (uint32_t)ll;
}
break;
case 'O':
op->do_or = true;
op->cmd_name = "Orwrite";
break;
case 'q':
op->scat_filename = optarg;
break;
case 'Q':
op->do_quiet = true;
break;
case 'R':
op->do_scat_raw = true;
break;
case 'r': /* same as --ref-tag= */
ll = sg_get_llnum(optarg);
if ((ll < 0) || (ll > UINT32_MAX)) {
pr2serr("bad argument to '--ref-tag='. Expect 0 to "
"0xffffffff inclusive\n");
return SG_LIB_SYNTAX_ERROR;
}
op->ref_tag = (uint32_t)ll;
break;
case 's':
++op->strict;
break;
case 'S':
j = sg_get_num(optarg);
if ((j < 0) || (j > (int)UINT16_MAX)) {
pr2serr("bad argument to '--scattered='. Expect 0 to 0xffff "
"inclusive\n");
return SG_LIB_SYNTAX_ERROR;
}
op->scat_num_lbard = (uint16_t)j;
op->do_scattered = true;
op->cmd_name = "Write scattered";
break;
case 't': /* same as --tag-mask= */
j = sg_get_num(optarg);
if ((j < 0) || (j > (int)UINT16_MAX)) {
pr2serr("bad argument to '--tag-mask='. Expect 0 to 0xffff "
"inclusive\n");
return SG_LIB_SYNTAX_ERROR;
}
op->tag_mask = (uint16_t)j;
break;
case 'T': /* WRITE STREAM */
j = sg_get_num(optarg);
if ((j < 0) || (j > (int)UINT16_MAX)) {
pr2serr("bad argument to '--stream=', expect 0 to 65535\n");
return SG_LIB_SYNTAX_ERROR;
}
op->str_id = (uint16_t)j;
op->do_stream = true;
op->cmd_name = "Write stream";
break;
case 'u': /* WRITE SAME, UNMAP and ANCHOR bit */
j = sg_get_num(optarg);
if ((j < 0) || (j > 3)) {
pr2serr("bad argument to '--unmap=', expect 0 to "
"3\n");
return SG_LIB_SYNTAX_ERROR;
}
op->do_unmap = !!(1 & j);
op->do_anchor = !!(2 & j);
break;
case 'v':
op->verbose_given = true;
++op->verbose;
break;
case 'V':
op->version_given = true;
break;
case 'w': /* WRPROTECT field (or ORPROTECT for ORWRITE) */
op->wrprotect = sg_get_num(optarg);
if ((op->wrprotect < 0) || (op->wrprotect > 7)) {
pr2serr("bad argument to '--wrprotect'\n");
return SG_LIB_SYNTAX_ERROR;
}
op->expect_pi_do = (op->wrprotect > 0);
break;
case 'x':
++op->dry_run;
break;
default:
pr2serr("unrecognised option code 0x%x ??\n", c);
usage((op->help > 0) ? op->help : 0);
return SG_LIB_SYNTAX_ERROR;
}
}
if (optind < argc) {
if (NULL == op->device_name) {
op->device_name = argv[optind];
++optind;
}
if (optind < argc) {
for (; optind < argc; ++optind)
pr2serr("Unexpected extra argument: %s\n", argv[optind]);
usage((op->help > 0) ? op->help : 0);
return SG_LIB_SYNTAX_ERROR;
}
}
if (op->strict && fail_if_strict)
return SG_LIB_SYNTAX_ERROR;
return 0;
}
static int
process_scattered(int sg_fd, int infd, uint32_t if_len, uint32_t if_rlen,
int sfr_fd, uint32_t sf_len, uint64_t * addr_arr,
uint32_t addr_arr_len, uint32_t * num_arr,
uint16_t num_lbard, uint32_t sum_num, struct opts_t * op)
{
int k, n, ret;
int vb = op->verbose;
uint32_t d, dd, nn, do_len;
uint8_t * up = NULL;
uint8_t * free_up = NULL;
char b[80];
if (op->do_combined) { /* --combined=DOF (.scat_lbdof) */
if (op->scat_lbdof > 0)
d = op->scat_lbdof * op->bs_pi_do;
else if (op->scat_num_lbard > 0) {
d = lbard_sz * (1 + op->scat_num_lbard);
if (0 != (d % op->bs_pi_do))
d = ((d / op->bs_pi_do) + 1) * op->bs_pi_do;
} else if (if_len > 0) {
d = if_len;
if (0 != (d % op->bs_pi_do))
d = ((d / op->bs_pi_do) + 1) * op->bs_pi_do;
} else {
pr2serr("With --combined= if DOF, RD are 0 and IF has an "
"unknown length\nthen give up\n");
return SG_LIB_CONTRADICT;
}
up = sg_memalign(d, 0, &free_up, false);
if (NULL == up) {
pr2serr("unable to allocate aligned memory for "
"scatterlist+data\n");
return sg_convert_errno(ENOMEM);
}
ret = bin_read(infd, up, ((if_len < d) ? if_len : d), "IF c1");
if (ret)
goto finii;
if (! check_lbrds(up, d, op, &num_lbard, &sum_num))
goto file_err_outt;
if ((op->scat_num_lbard > 0) && (op->scat_num_lbard != num_lbard)) {
bool rd_gt = (op->scat_num_lbard > num_lbard);
if (rd_gt || op->strict || vb) {
pr2serr("RD (%u) %s number of %ss (%u) found in IF\n",
op->scat_num_lbard, (rd_gt ? ">" : "<"), lbard_str,
num_lbard);
if (rd_gt)
goto file_err_outt;
else if (op->strict)
goto file_err_outt;
}
num_lbard = op->scat_num_lbard;
sum_num = sum_num_lbards(up, op->scat_num_lbard);
} else
op->scat_num_lbard = num_lbard;
dd = lbard_sz * (num_lbard + 1);
if (0 != (dd % op->bs_pi_do))
dd = ((dd / op->bs_pi_do) + 1) * op->bs_pi_do; /* round up */
nn = op->scat_lbdof * op->bs_pi_do;
if (dd != nn) {
bool dd_gt = (dd > nn);
if (dd_gt) {
pr2serr("%s: Cannot fit %ss (%u) in given LB data offset "
"(%u)\n", __func__, lbard_str, num_lbard,
op->scat_lbdof);
goto file_err_outt;
}
if (vb || op->strict)
pr2serr("%s: empty blocks before LB data offset (%u), could "
"be okay\n", __func__, op->scat_lbdof);
if (op->strict) {
pr2serr("Exiting due to --strict; perhaps try again with "
"--combined=%u\n", dd / op->bs_pi_do);
goto file_err_outt;
}
dd = nn;
}
dd += (sum_num * op->bs_pi_do);
if (dd > d) {
uint8_t * u2p;
uint8_t * free_u2p;
if (dd != if_len) {
bool dd_gt = (dd > if_len);
if (dd_gt || op->strict || vb) {
pr2serr("Calculated dout length (%u) %s bytes available "
"in IF (%u)\n", dd, (dd_gt ? ">" : "<"), if_len);
if (dd_gt)
goto file_err_outt;
else if (op->strict)
goto file_err_outt;
}
}
u2p = sg_memalign(dd, 0, &free_u2p, false);
if (NULL == u2p) {
pr2serr("unable to allocate memory for final "
"scatterlist+data\n");
ret = sg_convert_errno(ENOMEM);
goto finii;
}
memcpy(u2p, up, d);
free(free_up);
up = u2p;
free_up = free_u2p;
ret = bin_read(infd, up + d, dd - d, "IF c2");
if (ret)
goto finii;
}
do_len = dd;
op->numblocks = sum_num;
op->xfer_bytes = sum_num * op->bs_pi_do;
goto do_io;
}
/* other than do_combined, so --scat-file= or --lba= */
if (addr_arr_len > 0)
num_lbard = addr_arr_len;
if (op->scat_filename && (! op->do_scat_raw)) {
d = lbard_sz * (num_lbard + 1);
nn = d;
op->scat_lbdof = d / op->bs_pi_do;
if (0 != (d % op->bs_pi_do)) /* if not multiple, round up */
op->scat_lbdof += 1;
dd = op->scat_lbdof * op->bs_pi_do;
d = sum_num * op->bs_pi_do;
do_len = dd + d;
/* zeroed data-out buffer for SL+DATA */
up = sg_memalign(do_len, 0, &free_up, false);
if (NULL == up) {
pr2serr("unable to allocate aligned memory for "
"scatterlist+data\n");
return sg_convert_errno(ENOMEM);
}
num_lbard = 0;
sum_num = 0;
nn = (nn > lbard_sz) ? nn : (op->scat_lbdof * op->bs_pi_do);
ret = build_t10_scat(op->scat_filename, op->do_16, ! op->do_scattered,
up, &num_lbard, &sum_num, nn);
if (ret)
goto finii;
/* Calculate number of bytes to read from IF (place in 'd') */
d = sum_num * op->bs_pi_do;
if (op->if_dlen > d) {
if (op->strict || vb) {
pr2serr("DLEN > than bytes implied by sum of scatter "
"list NUMs (%u)\n", d);
if (vb > 1)
pr2serr(" num_lbard=%u, sum_num=%u actual_bs=%u",
num_lbard, sum_num, op->bs_pi_do);
if (op->strict)
goto file_err_outt;
}
} else if ((op->if_dlen > 0) && (op->if_dlen < d))
d = op->if_dlen;
if ((if_rlen > 0) && (if_rlen != d)) {
bool readable_lt = (if_rlen < d);
if (vb)
pr2serr("readable length (%u) of IF %s bytes implied by "
"sum of\nscatter list NUMs (%u) and DLEN\n",
(uint32_t)if_rlen,
readable_lt ? "<" : ">", d);
if (op->strict) {
if ((op->strict > 1) || (! readable_lt))
goto file_err_outt;
}
if (readable_lt)
d = if_rlen;
}
if (0 != (d % op->bs_pi_do)) {
if (vb || (op->strict > 1)) {
pr2serr("Calculated data-out length (0x%x) not a "
"multiple of BS (%u", d, op->bs);
if (op->bs != op->bs_pi_do)
pr2serr(" + %d(PI)", (int)op->bs_pi_do - (int)op->bs);
if (op->strict > 1) {
pr2serr(")\nexiting ...\n");
goto file_err_outt;
} else
pr2serr(")\nzero pad and continue ...\n");
}
}
ret = bin_read(infd, up + (op->scat_lbdof * op->bs_pi_do), d,
"IF 3");
if (ret)
goto finii;
do_len = ((op->scat_lbdof + sum_num) * op->bs_pi_do);
op->numblocks = sum_num;
op->xfer_bytes = sum_num * op->bs_pi_do;
/* dout for scattered write with ASCII scat_file ready */
} else if (op->do_scat_raw) {
bool if_len_gt = false;
/* guessing game for length of buffer */
if (op->scat_num_lbard > 0) {
dd = (op->scat_num_lbard + 1) * lbard_sz;
if (sf_len < dd) {
pr2serr("SF not long enough (%u bytes) to provide RD "
"(%u) %ss\n", sf_len, dd, lbard_str);
goto file_err_outt;
}
nn = dd / op->bs_pi_do;
if (0 != (dd % op->bs_pi_do))
nn +=1;
dd = nn * op->bs_pi_do;
} else
dd = op->bs_pi_do; /* guess */
if (if_len > 0) {
nn = if_len / op->bs_pi_do;
if (0 != (if_len % op->bs_pi_do))
nn += 1;
d = nn * op->bs_pi_do;
} else
d = op->bs_pi_do; /* guess one LB */
/* zero data-out buffer for SL+DATA */
nn = dd + d;
up = sg_memalign(nn, 0, &free_up, false);
if (NULL == up) {
pr2serr("unable to allocate aligned memory for "
"scatterlist+data\n");
ret = sg_convert_errno(ENOMEM);
goto finii;
}
ret = bin_read(sfr_fd, up, sf_len, "SF");
if (ret)
goto finii;
if (! check_lbrds(up, dd, op, &num_lbard, &sum_num))
goto file_err_outt;
if (num_lbard != op->scat_num_lbard) {
pr2serr("Try again with --scattered=%u\n", num_lbard);
goto file_err_outt;
}
if ((sum_num * op->bs_pi_do) > d) {
uint8_t * u2p;
uint8_t * free_u2p;
d = sum_num * op->bs_pi_do;
nn = dd + d;
u2p = sg_memalign(nn, 0, &free_u2p, false);
if (NULL == u2p) {
pr2serr("unable to allocate memory for final "
"scatterlist+data\n");
ret = sg_convert_errno(ENOMEM);
goto finii;
}
memcpy(u2p, up, dd);
free(free_up);
up = u2p;
free_up = free_u2p;
}
if ((if_len != (nn - d)) && (op->strict || vb)) {
if_len_gt = (if_len > (nn - d));
pr2serr("IF length (%u) %s 'sum_num' bytes (%u), ", if_len,
(if_len_gt ? ">" : "<"), nn - d);
if (op->strict > 1) {
pr2serr("exiting (strict=%d)\n", op->strict);
goto file_err_outt;
} else
pr2serr("continuing ...\n");
}
ret = bin_read(infd, up + d, (if_len_gt ? nn - d : if_len), "IF 4");
if (ret)
goto finii;
do_len = (num_lbard + sum_num) * op->bs_pi_do;
op->numblocks = sum_num;
op->xfer_bytes = sum_num * op->bs_pi_do;
} else if (addr_arr_len > 0) { /* build RDs for --lba= --num= */
if ((op->scat_num_lbard > 0) && (op->scat_num_lbard > addr_arr_len)) {
pr2serr("%s: number given to --scattered= (%u) exceeds number of "
"--lba= elements (%u)\n", __func__, op->scat_num_lbard,
addr_arr_len);
return SG_LIB_CONTRADICT;
}
d = lbard_sz * (num_lbard + 1);
op->scat_lbdof = d / op->bs_pi_do;
if (0 != (d % op->bs_pi_do)) /* if not multiple, round up */
op->scat_lbdof += 1;
for (sum_num = 0, k = 0; k < (int)addr_arr_len; ++k)
sum_num += num_arr[k];
do_len = ((op->scat_lbdof + sum_num) * op->bs_pi_do);
up = sg_memalign(do_len, 0, &free_up, false);
if (NULL == up) {
pr2serr("unable to allocate aligned memory for "
"scatterlist+data\n");
ret = sg_convert_errno(ENOMEM);
goto finii;
}
for (n = lbard_sz, k = 0; k < (int)addr_arr_len; ++k,
n += lbard_sz) {
sg_put_unaligned_be64(addr_arr[k], up + n + 0);
sg_put_unaligned_be32(num_arr[k], up + n + 8);
if (op->do_32) {
if (0 == k) {
sg_put_unaligned_be32(op->ref_tag, up + n + 12);
sg_put_unaligned_be16(op->app_tag, up + n + 16);
sg_put_unaligned_be16(op->tag_mask, up + n + 18);
} else {
sg_put_unaligned_be32((uint32_t)DEF_RT, up + n + 12);
sg_put_unaligned_be16((uint16_t)DEF_AT, up + n + 16);
sg_put_unaligned_be16((uint16_t)DEF_TM, up + n + 18);
}
}
}
op->numblocks = sum_num;
} else {
pr2serr("How did we get here??\n");
goto syntax_err_outt;
}
do_io:
ret = do_write_x(sg_fd, up, do_len, op);
if (ret) {
strcpy(b,"OS error");
if (ret > 0)
sg_get_category_sense_str(ret, sizeof(b), b, vb);
pr2serr("%s: %s\n", op->cdb_name, b);
}
goto finii;
syntax_err_outt:
ret = SG_LIB_SYNTAX_ERROR;
goto finii;
file_err_outt:
ret = SG_LIB_FILE_ERROR;
finii:
if (free_up)
free(free_up);
return ret;
}
int
main(int argc, char * argv[])
{
bool got_stdin = false;
bool got_stat = false;
bool if_reg_file = false;
int n, err, vb;
int infd = -1;
int sg_fd = -1;
int sfr_fd = -1;
int ret = -1;
uint32_t nn, addr_arr_len, num_arr_len; /* --lba= */
uint32_t do_len = 0;
uint16_t num_lbard = 0;
uint32_t if_len = 0; /* after accounting for OFF,DLEN and moving file
* file pointer to OFF, is bytes available in IF */
uint32_t sf_len = 0;
uint32_t sum_num = 0;
ssize_t res;
off_t if_readable_len = 0; /* similar to if_len but doesn't take DLEN
* into account */
struct opts_t * op;
const char * lba_op = NULL;
const char * num_op = NULL;
uint8_t * up = NULL;
uint8_t * free_up = NULL;
char ebuff[EBUFF_SZ];
char b[80];
uint64_t addr_arr[MAX_NUM_ADDR];
uint32_t num_arr[MAX_NUM_ADDR];
struct stat if_stat, sf_stat;
struct opts_t opts;
op = &opts;
memset(op, 0, sizeof(opts));
memset(&if_stat, 0, sizeof(if_stat));
memset(&sf_stat, 0, sizeof(sf_stat));
op->numblocks = DEF_WR_NUMBLOCKS;
op->pi_type = -1; /* Protection information type unknown */
op->ref_tag = DEF_RT; /* first 4 bytes of 8 byte protection info */
op->app_tag = DEF_AT; /* 2 bytes of protection information */
op->tag_mask = DEF_TM; /* final 2 bytes of protection information */
op->timeout = DEF_TIMEOUT_SECS;
/* Process command line */
ret = parse_cmd_line(op, argc, argv, &lba_op, &num_op);
if (ret) {
if (WANT_ZERO_EXIT == ret)
return 0;
return ret;
}
if (op->help > 0) {
usage(op->help);
return 0;
}
#ifdef DEBUG
pr2serr("In DEBUG mode, ");
if (op->verbose_given && op->version_given) {
pr2serr("but override: '-vV' given, zero verbose and continue\n");
op->verbose_given = false;
op->version_given = false;
op->verbose = 0;
} else if (! op->verbose_given) {
pr2serr("set '-vv'\n");
op->verbose = 2;
} else
pr2serr("keep verbose=%d\n", op->verbose);
#else
if (op->verbose_given && op->version_given)
pr2serr("Not in DEBUG mode, so '-vV' has no special action\n");
#endif
if (op->version_given) {
pr2serr("sg_write_x version: %s\n", version_str);
return WANT_ZERO_EXIT;
}
vb = op->verbose;
/* sanity checks */
if ((! op->do_16) && (! op->do_32)) {
op->do_16 = true;
if (vb > 1)
pr2serr("Since neither --16 nor --32 given, choose --16\n");
} else if (op->do_16 && op->do_32) {
op->do_16 = false;
if (vb > 1)
pr2serr("Since both --16 and --32 given, choose --32\n");
}
n = (int)op->do_atomic + (int)op->do_write_normal + (int)op->do_or +
(int)op->do_same + (int)op->do_scattered + (int)op->do_stream;
if (n > 1) {
pr2serr("Can only select one command; so only one of --atomic, "
"--normal, --or,\n--same=, --scattered= or --stream=\n") ;
return SG_LIB_CONTRADICT;
} else if (n < 1) {
if (op->strict) {
pr2serr("With --strict won't default to a normal WRITE, add "
"--normal\n");
return SG_LIB_CONTRADICT;
} else {
op->do_write_normal = true;
op->cmd_name = "Write";
if (vb)
pr2serr("No command selected so choose 'normal' WRITE\n");
}
}
snprintf(op->cdb_name, sizeof(op->cdb_name), "%s(%d)", op->cmd_name,
(op->do_16 ? 16 : 32));
if (op->do_combined) {
if (! op->do_scattered) {
pr2serr("--combined=DOF only allowed with --scattered=RD (i.e. "
"only with\nWRITE SCATTERED command)\n");
return SG_LIB_CONTRADICT;
}
if (op->scat_filename) {
pr2serr("Ambiguous: got --combined=DOF and --scat-file=SF .\n"
"Give one, the other or neither\n");
return SG_LIB_CONTRADICT;
}
if (lba_op || num_op) {
pr2serr("--scattered=RD --combined=DOF does not use --lba= or "
"--num=\nPlease remove.\n");
return SG_LIB_CONTRADICT;
}
if (op->do_scat_raw) {
pr2serr("Ambiguous: don't expect --combined=DOF and --scat-raw\n"
"Give one or the other\n");
return SG_LIB_CONTRADICT;
}
}
if ((NULL == op->scat_filename) && op->do_scat_raw) {
pr2serr("--scat-raw only applies to the --scat-file=SF option\n"
"--scat-raw without the --scat-file=SF option is an "
"error\n");
return SG_LIB_CONTRADICT;
}
n = (!! op->scat_filename) + (!! (lba_op || num_op)) +
(!! op->do_combined);
if (n > 1) {
pr2serr("want one and only one of: (--lba=LBA and/or --num=NUM), or\n"
"--scat-file=SF, or --combined=DOF\n");
return SG_LIB_CONTRADICT;
}
if (op->scat_filename && (1 == strlen(op->scat_filename)) &&
('-' == op->scat_filename[0])) {
pr2serr("don't accept '-' (implying stdin) as a filename in "
"--scat-file=SF\n");
return SG_LIB_CONTRADICT;
}
if (vb && op->do_16 && (! is_pi_default(op)))
pr2serr("--app-tag=, --ref-tag= and --tag-mask= options ignored "
"with 16 byte commands\n");
/* examine .if_name . Open, move to .if_offset, calculate length that we
* want to read. */
if (! op->ndob) { /* as long as --same=1 is not active */
if_len = op->if_dlen; /* from --offset=OFF,DLEN; defaults to 0 */
if (NULL == op->if_name) {
pr2serr("Need --if=FN option to be given, exiting.\n");
if (vb > 1)
pr2serr("To write zeros use --in=/dev/zero\n");
pr2serr("\n");
usage((op->help > 0) ? op->help : 0);
return SG_LIB_SYNTAX_ERROR;
}
if ((1 == strlen(op->if_name)) && ('-' == op->if_name[0])) {
got_stdin = true;
infd = STDIN_FILENO;
if (sg_set_binary_mode(STDIN_FILENO) < 0) {
perror("sg_set_binary_mode");
return SG_LIB_FILE_ERROR;
}
} else {
if ((infd = open(op->if_name, O_RDONLY)) < 0) {
err = errno;
snprintf(ebuff, EBUFF_SZ, "could not open %s for reading",
op->if_name);
perror(ebuff);
return sg_convert_errno(err);
}
if (sg_set_binary_mode(infd) < 0) {
perror("sg_set_binary_mode");
return SG_LIB_FILE_ERROR;
}
if (fstat(infd, &if_stat) < 0) {
err = errno;
snprintf(ebuff, EBUFF_SZ, "could not fstat %s", op->if_name);
perror(ebuff);
return sg_convert_errno(err);
}
got_stat = true;
if (S_ISREG(if_stat.st_mode)) {
if_reg_file = true;
if_readable_len = if_stat.st_size;
if (0 == if_len)
if_len = if_readable_len;
}
}
if (got_stat && if_readable_len &&
((int64_t)op->if_offset >= (if_readable_len - 1))) {
pr2serr("Offset (%" PRIu64 ") is at or beyond IF byte length (%"
PRIu64 ")\n", op->if_offset, (uint64_t)if_readable_len);
goto file_err_out;
}
if (op->if_offset > 0) {
off_t off = op->if_offset;
off_t h = if_readable_len;
if (if_reg_file) {
/* lseek() won't work with stdin, pipes or sockets, etc */
if (lseek(infd, off, SEEK_SET) < 0) {
err = errno;
snprintf(ebuff, EBUFF_SZ, "couldn't offset to required "
"position on %s", op->if_name);
perror(ebuff);
ret = sg_convert_errno(err);
goto err_out;
}
if_readable_len -= op->if_offset;
if (if_readable_len <= 0) {
pr2serr("--offset [0x%" PRIx64 "] at or beyond file "
"length[0x%" PRIx64 "]\n",
(uint64_t)op->if_offset, (uint64_t)h);
goto file_err_out;
}
if (op->strict && ((off_t)op->if_dlen > if_readable_len)) {
pr2serr("after accounting for OFF, DLEN exceeds %s "
"remaining length (%u bytes)\n",
op->if_name, (uint32_t)if_readable_len);
goto file_err_out;
}
if_len = (uint32_t)((if_readable_len < (off_t)if_len) ?
if_readable_len : (off_t)if_len);
if (vb > 2)
pr2serr("Moved IF byte pointer to %u, if_len=%u, "
"if_readable_len=%u\n", (uint32_t)op->if_offset,
if_len, (uint32_t)if_readable_len);
} else {
if (vb)
pr2serr("--offset=OFF ignored when IF is stdin, pipe, "
"socket, etc\nDLEN, if given, is used\n");
}
}
}
/* Check device name has been given */
if (NULL == op->device_name) {
pr2serr("missing device name!\n");
usage((op->help > 0) ? op->help : 0);
goto syntax_err_out;
}
/* Open device file, do READ CAPACITY(16, maybe 10) if no BS */
sg_fd = sg_cmds_open_device(op->device_name, false /* rw */, vb);
if (sg_fd < 0) {
if (op->verbose)
pr2serr("open error: %s: %s\n", op->device_name,
safe_strerror(-sg_fd));
ret = sg_convert_errno(-sg_fd);
goto fini;
}
if (0 == op->bs) { /* ask DEVICE about logical/actual block size */
ret = do_read_capacity(sg_fd, op);
if (ret)
goto err_out;
}
if ((0 == op->bs_pi_do) || (0 == op->bs)) {
pr2serr("Logic error, need block size by now\n");
goto syntax_err_out;
}
if (! op->ndob) {
if (0 != (if_len % op->bs_pi_do)) {
if (op->strict > 1) {
pr2serr("Error: number of bytes to read from IF [%u] is "
"not a multiple\nblock size %u (including "
"protection information)\n", (unsigned int)if_len,
op->bs_pi_do);
goto file_err_out;
}
if (op->strict || vb)
pr2serr("Warning: number of bytes to read from IF [%u] is "
"not a multiple\nof actual block size %u; pad with "
"zeros\n", (unsigned int)if_len, op->bs_pi_do);
}
}
/* decode --lba= and --num= options */
memset(addr_arr, 0, sizeof(addr_arr));
memset(num_arr, 0, sizeof(num_arr));
addr_arr_len = 0;
num_arr_len = 0;
if (lba_op) {
if (0 != build_lba_arr(lba_op, addr_arr, &addr_arr_len,
MAX_NUM_ADDR)) {
pr2serr("bad argument to '--lba'\n");
goto syntax_err_out;
}
}
if (num_op) {
if (0 != build_num_arr(num_op, num_arr, &num_arr_len,
MAX_NUM_ADDR)) {
pr2serr("bad argument to '--num'\n");
goto err_out;
}
}
if (((addr_arr_len > 1) && (addr_arr_len != num_arr_len)) ||
((0 == addr_arr_len) && (num_arr_len > 1))) {
/* allow all combinations of 0 or 1 element --lba= with 0 or 1
* element --num=, otherwise this error ... */
pr2serr("need same number of arguments to '--lba=' and '--num=' "
"options\n");
ret = SG_LIB_CONTRADICT;
goto err_out;
}
if ((0 == addr_arr_len) && (1 == num_arr_len)) {
if (num_arr[0] > 0) {
pr2serr("won't write %u blocks without an explicit --lba= "
"option\n", num_arr[0]);
goto syntax_err_out;
}
addr_arr_len = 1; /* allow --num=0 without --lba= since it is safe */
}
/* Everything can use a SF, except --same=1 (when op->ndob==true) */
if (op->scat_filename) {
if (stat(op->scat_filename, &sf_stat) < 0) {
err = errno;
pr2serr("Unable to stat(%s) as SF: %s\n", op->scat_filename,
safe_strerror(err));
ret = sg_convert_errno(err);
goto err_out;
}
if (op->do_scat_raw) {
if (! S_ISREG(sf_stat.st_mode)) {
pr2serr("Expect scatter file to be a regular file\n");
goto file_err_out;
}
sf_len = sf_stat.st_size;
sfr_fd = open(op->scat_filename, O_RDONLY);
if (sfr_fd < 0) {
err = errno;
pr2serr("Failed to open %s for raw read: %s\n",
op->scat_filename, safe_strerror(err));
ret = sg_convert_errno(err);
goto err_out;
}
if (sg_set_binary_mode(sfr_fd) < 0) {
perror("sg_set_binary_mode");
goto file_err_out;
}
} else { /* scat_file should contain ASCII hex, preliminary parse */
nn = (op->scat_num_lbard > 0) ?
lbard_sz * (1 + op->scat_num_lbard) : 0;
ret = build_t10_scat(op->scat_filename, op->do_16,
! op->do_scattered, NULL, &num_lbard,
&sum_num, nn);
if (ret)
goto err_out;
if ((op->scat_num_lbard > 0) &&
(num_lbard != op->scat_num_lbard)) {
bool rd_gt = (op->scat_num_lbard > num_lbard);
if (rd_gt || op->strict || vb) {
pr2serr("RD (%u) %s number of %ss (%u) found in SF\n",
op->scat_num_lbard, (rd_gt ? ">" : "<"),
lbard_str, num_lbard);
if (rd_gt)
goto file_err_out;
else if (op->strict)
goto file_err_out;
}
}
}
}
if (op->do_scattered) {
ret = process_scattered(sg_fd, infd, if_len, if_readable_len, sfr_fd,
sf_len, addr_arr, addr_arr_len, num_arr,
num_lbard, sum_num, op);
goto fini;
}
/* other than scattered */
if (addr_arr_len > 0) {
op->lba = addr_arr[0];
op->numblocks = num_arr[0];
if (vb && (addr_arr_len > 1))
pr2serr("warning: %d LBA,number_of_blocks pairs found, only "
"taking first\n", addr_arr_len);
} else if (op->scat_filename && (! op->do_scat_raw)) {
uint8_t upp[96];
sum_num = 0;
ret = build_t10_scat(op->scat_filename, op->do_16,
true /* parse one */, upp, &num_lbard,
&sum_num, sizeof(upp));
if (ret)
goto err_out;
if (vb && (num_lbard > 1))
pr2serr("warning: %d LBA,number_of_blocks pairs found, only "
"taking first\n", num_lbard);
if (vb > 2)
pr2serr("after build_t10_scat, num_lbard=%u, sum_num=%u\n",
num_lbard, sum_num);
if (1 != num_lbard) {
pr2serr("Unable to decode one LBA range descriptor from %s\n",
op->scat_filename);
goto file_err_out;
}
op->lba = sg_get_unaligned_be64(upp + 32 + 0);
op->numblocks = sg_get_unaligned_be32(upp + 32 + 8);
if (op->do_32) {
op->ref_tag = sg_get_unaligned_be32(upp + 32 + 12);
op->app_tag = sg_get_unaligned_be16(upp + 32 + 16);
op->tag_mask = sg_get_unaligned_be16(upp + 32 + 18);
}
} else if (op->do_scat_raw) {
uint8_t upp[64];
if (sf_len < (2 * lbard_sz)) {
pr2serr("raw scatter file must be at least 64 bytes long "
"(length: %u)\n", sf_len);
goto file_err_out;
}
ret = bin_read(sfr_fd, upp, sizeof(upp), "SF");
if (ret)
goto err_out;
if (! check_lbrds(upp, sizeof(upp), op, &num_lbard, &sum_num))
goto file_err_out;
if (1 != num_lbard) {
pr2serr("No %ss found in SF (num=%u)\n", lbard_str, num_lbard);
goto file_err_out;
}
op->lba = sg_get_unaligned_be64(upp + 16);
op->numblocks = sg_get_unaligned_be32(upp + 16 + 8);
do_len = sum_num * op->bs_pi_do;
op->xfer_bytes = do_len;
} else {
pr2serr("No LBA or number_of_blocks given, try using --lba= and "
"--num=\n");
goto syntax_err_out;
}
if (op->do_same)
op->xfer_bytes = op->ndob ? 0 : op->bs_pi_do;
else /* WRITE, ORWRITE, WRITE ATOMIC or WRITE STREAM */
op->xfer_bytes = op->numblocks * op->bs_pi_do;
do_len = op->xfer_bytes;
if (do_len > 0) {
/* fill allocated buffer with zeros */
up = sg_memalign(do_len, 0, &free_up, false);
if (NULL == up) {
pr2serr("unable to allocate %u bytes of memory\n", do_len);
ret = sg_convert_errno(ENOMEM);
goto err_out;
}
ret = bin_read(infd, up, ((if_len < do_len) ? if_len : do_len),
"IF 5");
if (ret)
goto fini;
} else
up = NULL;
ret = do_write_x(sg_fd, up, do_len, op);
if (ret && (! op->do_quiet)) {
strcpy(b,"OS error");
if (ret > 0)
sg_get_category_sense_str(ret, sizeof(b), b, vb);
pr2serr("%s: %s\n", op->cdb_name, b);
}
goto fini;
syntax_err_out:
ret = SG_LIB_SYNTAX_ERROR;
goto err_out;
file_err_out:
ret = SG_LIB_FILE_ERROR;
err_out:
fini:
if (free_up)
free(free_up);
if (sg_fd >= 0) {
res = sg_cmds_close_device(sg_fd);
if (res < 0) {
if (! op->do_quiet)
pr2serr("sg_fd close error: %s\n", safe_strerror(-res));
if (0 == ret)
ret = SG_LIB_FILE_ERROR;
}
}
if (sfr_fd >= 0) {
if (close(sfr_fd) < 0) {
if (! op->do_quiet)
perror("sfr_fd close error");
if (0 == ret)
ret = SG_LIB_FILE_ERROR;
}
}
if ((! got_stdin) && (infd >= 0)) {
if (close(infd) < 0) {
if (! op->do_quiet)
perror("infd close error");
if (0 == ret)
ret = SG_LIB_FILE_ERROR;
}
}
if ((0 == op->verbose) && (! op->do_quiet)) {
if (! sg_if_can2stderr("sg_write_x failed: ", ret))
pr2serr("Some error occurred, try again with '-v' or '-vv' for "
"more information\n");
}
return (ret >= 0) ? ret : SG_LIB_CAT_OTHER;
}