| /* |
| * Copyright (c) 2006-2022 Luben Tuikov and 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. |
| * |
| * SPDX-License-Identifier: BSD-2-Clause |
| */ |
| |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <stdbool.h> |
| #include <ctype.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <getopt.h> |
| #define __STDC_FORMAT_MACROS 1 |
| #include <inttypes.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include "sg_lib.h" |
| #include "sg_lib_data.h" |
| #include "sg_cmds_basic.h" |
| #include "sg_cmds_extra.h" |
| #include "sg_pt.h" |
| #include "sg_unaligned.h" |
| #include "sg_pr2serr.h" |
| |
| /* |
| * This utility issues the SCSI READ BUFFER(10 or 16) command to the given |
| * device. |
| */ |
| |
| static const char * version_str = "1.35 20220217"; /* spc6r06 */ |
| |
| #ifndef SG_READ_BUFFER_10_CMD |
| #define SG_READ_BUFFER_10_CMD 0x3c |
| #define SG_READ_BUFFER_10_CMDLEN 10 |
| #endif |
| #ifndef SG_READ_BUFFER_16_CMD |
| #define SG_READ_BUFFER_16_CMD 0x9b |
| #define SG_READ_BUFFER_16_CMDLEN 16 |
| #endif |
| |
| #define MODE_HEADER_DATA 0 |
| #define MODE_VENDOR 1 |
| #define MODE_DATA 2 |
| #define MODE_DESCRIPTOR 3 |
| #define MODE_ECHO_BUFFER 0x0A |
| #define MODE_ECHO_BDESC 0x0B |
| #define MODE_READ_MICROCODE_ST 0x0F |
| #define MODE_EN_EX_ECHO 0x1A |
| #define MODE_ERR_HISTORY 0x1C |
| |
| #define MAX_DEF_INHEX_LEN 8192 |
| #define SENSE_BUFF_LEN 64 /* Arbitrary, could be larger */ |
| #define DEF_PT_TIMEOUT 60 /* 60 seconds */ |
| #define DEF_RESPONSE_LEN 4 /* increased to 64 for MODE_ERR_HISTORY */ |
| |
| |
| static struct option long_options[] = { |
| {"16", no_argument, 0, 'L'}, |
| {"eh_code", required_argument, 0, 'e'}, |
| {"eh-code", required_argument, 0, 'e'}, |
| {"help", no_argument, 0, 'h'}, |
| {"hex", no_argument, 0, 'H'}, |
| {"id", required_argument, 0, 'i'}, |
| {"inhex", required_argument, 0, 'I'}, |
| {"length", required_argument, 0, 'l'}, |
| {"long", no_argument, 0, 'L'}, |
| {"mode", required_argument, 0, 'm'}, |
| {"no_output", no_argument, 0, 'N'}, |
| {"no-output", no_argument, 0, 'N'}, |
| {"offset", required_argument, 0, 'o'}, |
| {"raw", no_argument, 0, 'r'}, |
| {"readonly", no_argument, 0, 'R'}, |
| {"specific", required_argument, 0, 'S'}, |
| {"verbose", no_argument, 0, 'v'}, |
| {"version", no_argument, 0, 'V'}, |
| {0, 0, 0, 0}, /* sentinel */ |
| }; |
| |
| struct opts_t { |
| bool do_long; |
| bool o_readonly; |
| bool do_raw; |
| bool eh_code_given; |
| bool no_output; |
| bool rb_id_given; |
| bool rb_len_given; |
| bool rb_mode_given; |
| bool verbose_given; |
| bool version_given; |
| int sg_fd; |
| int do_help; |
| int do_hex; |
| int eh_code; |
| int rb_id; |
| int rb_len; |
| int rb_mode; |
| int rb_mode_sp; |
| int verbose; |
| uint64_t rb_offset; |
| const char * device_name; |
| const char * inhex_name; |
| }; |
| |
| |
| static void |
| usage() |
| { |
| pr2serr("Usage: sg_read_buffer [--16] [--eh_code=EHC] [--help] [--hex] " |
| "[--id=ID]\n" |
| " [--inhex=FN] [--length=LEN] [--long] " |
| "[--mode=MO]\n" |
| " [--no_output] [--offset=OFF] [--raw] " |
| "[--readonly]\n" |
| " [--specific=MS] [--verbose] [--version] " |
| "DEVICE\n" |
| " where:\n" |
| " --16|-L issue READ BUFFER(16) (def: 10)\n" |
| " --eh_code=EHC|-e EHC same as '-m eh -i EHC' where " |
| "EHC is the\n" |
| " error history code\n" |
| " --help|-h print out usage message\n" |
| " --hex|-H print output in hex\n" |
| " --id=ID|-i ID buffer identifier (0 (default) to 255)\n" |
| " --inhex=FN|-I FN filename FN contains hex data to " |
| "decode\n" |
| " rather than DEVICE. If --raw given " |
| "then binary\n" |
| " --length=LEN|-l LEN length in bytes to read (def: 4, " |
| "64 for eh)\n" |
| " --long|-L issue READ BUFFER(16) (def: 10)\n" |
| " --mode=MO|-m MO read buffer mode, MO is number or " |
| "acronym (def: 0)\n" |
| " --no_output|-N perform the command then exit\n" |
| " --offset=OFF|-o OFF buffer offset (unit: bytes, def: 0)\n" |
| " --raw|-r output response in binary to stdout\n" |
| " --readonly|-R open DEVICE read-only (def: read-write)\n" |
| " --specific=MS|-S MS mode specific value; 3 bit field (0 " |
| "to 7)\n" |
| " --verbose|-v increase verbosity\n" |
| " --version|-V print version string and exit\n\n" |
| "Performs a SCSI READ BUFFER (10 or 16) command. Use '-m xxx' to " |
| "list\navailable modes. Some responses are decoded, others are " |
| "output in hex.\n" |
| ); |
| } |
| |
| |
| static struct mode_s { |
| const char *mode_string; |
| int mode; |
| const char *comment; |
| } modes[] = { |
| { "hd", MODE_HEADER_DATA, "combined header and data"}, |
| { "vendor", MODE_VENDOR, "vendor specific"}, |
| { "data", MODE_DATA, "data"}, |
| { "desc", MODE_DESCRIPTOR, "descriptor"}, |
| { "echo", MODE_ECHO_BUFFER, "read data from echo buffer " |
| "(spc-2)"}, |
| { "echo_desc", MODE_ECHO_BDESC, "echo buffer descriptor (spc-2)"}, |
| { "rd_microc_st", MODE_READ_MICROCODE_ST, "read microcode status " |
| "(spc-5)"}, |
| { "en_ex", MODE_EN_EX_ECHO, |
| "enable expander communications protocol and echo buffer (spc-3)"}, |
| { "err_hist|eh", MODE_ERR_HISTORY, "error history (spc-4)"}, |
| { NULL, 999, NULL}, /* end sentinel */ |
| }; |
| |
| |
| static void |
| print_modes(void) |
| { |
| const struct mode_s *mp; |
| |
| pr2serr("The modes parameter argument can be numeric (hex or decimal)\n" |
| "or symbolic:\n"); |
| for (mp = modes; mp->mode_string; ++mp) { |
| pr2serr(" %2d (0x%02x) %-16s%s\n", mp->mode, mp->mode, |
| mp->mode_string, mp->comment); |
| } |
| } |
| |
| /* Invokes a SCSI READ BUFFER(10) command (spc5r02). Return of 0 -> success, |
| * various SG_LIB_CAT_* positive values or -1 -> other errors */ |
| static int |
| sg_ll_read_buffer_10(void * resp, int * residp, bool noisy, |
| const struct opts_t * op) |
| { |
| int ret, res, sense_cat; |
| uint8_t rb10_cb[SG_READ_BUFFER_10_CMDLEN] = |
| {SG_READ_BUFFER_10_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| uint8_t sense_b[SENSE_BUFF_LEN] SG_C_CPP_ZERO_INIT; |
| struct sg_pt_base * ptvp; |
| |
| rb10_cb[1] = (uint8_t)(op->rb_mode & 0x1f); |
| if (op->rb_mode_sp) |
| rb10_cb[1] |= (uint8_t)((op->rb_mode_sp & 0x7) << 5); |
| rb10_cb[2] = (uint8_t)op->rb_id; |
| sg_put_unaligned_be24(op->rb_offset, rb10_cb + 3); |
| sg_put_unaligned_be24(op->rb_len, rb10_cb + 6); |
| if (op->verbose) { |
| char b[128]; |
| |
| pr2serr(" Read buffer(10) cdb: %s\n", |
| sg_get_command_str(rb10_cb, SG_READ_BUFFER_10_CMDLEN, false, |
| sizeof(b), b)); |
| } |
| |
| ptvp = construct_scsi_pt_obj(); |
| if (NULL == ptvp) { |
| pr2serr("Read buffer(10): out of memory\n"); |
| return -1; |
| } |
| set_scsi_pt_cdb(ptvp, rb10_cb, sizeof(rb10_cb)); |
| set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| set_scsi_pt_data_in(ptvp, (uint8_t *)resp, op->rb_len); |
| res = do_scsi_pt(ptvp, op->sg_fd, DEF_PT_TIMEOUT, op->verbose); |
| ret = sg_cmds_process_resp(ptvp, "Read buffer(10)", res, noisy, |
| op->verbose, &sense_cat); |
| if (-1 == ret) { |
| if (get_scsi_pt_transport_err(ptvp)) |
| ret = SG_LIB_TRANSPORT_ERROR; |
| else |
| 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; |
| default: |
| ret = sense_cat; |
| break; |
| } |
| } else { |
| if ((op->verbose > 2) && (ret > 0)) { |
| pr2serr(" Read buffer(10): response%s\n", |
| (ret > 256 ? ", first 256 bytes" : "")); |
| hex2stderr((const uint8_t *)resp, (ret > 256 ? 256 : ret), -1); |
| } |
| ret = 0; |
| } |
| if (residp) |
| *residp = get_scsi_pt_resid(ptvp); |
| destruct_scsi_pt_obj(ptvp); |
| return ret; |
| } |
| |
| /* Invokes a SCSI READ BUFFER(16) command (spc5r02). Return of 0 -> success, |
| * various SG_LIB_CAT_* positive values or -1 -> other errors */ |
| static int |
| sg_ll_read_buffer_16(void * resp, int * residp, bool noisy, |
| const struct opts_t * op) |
| { |
| int ret, res, sense_cat; |
| uint8_t rb16_cb[SG_READ_BUFFER_16_CMDLEN] = |
| {SG_READ_BUFFER_16_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0}; |
| uint8_t sense_b[SENSE_BUFF_LEN] SG_C_CPP_ZERO_INIT; |
| struct sg_pt_base * ptvp; |
| |
| rb16_cb[1] = (uint8_t)(op->rb_mode & 0x1f); |
| if (op->rb_mode_sp) |
| rb16_cb[1] |= (uint8_t)((op->rb_mode_sp & 0x7) << 5); |
| sg_put_unaligned_be64(op->rb_offset, rb16_cb + 2); |
| sg_put_unaligned_be32(op->rb_len, rb16_cb + 10); |
| rb16_cb[14] = (uint8_t)op->rb_id; |
| if (op->verbose) { |
| char b[128]; |
| |
| pr2serr(" Read buffer(16) cdb: %s\n", |
| sg_get_command_str(rb16_cb, SG_READ_BUFFER_16_CMDLEN, false, |
| sizeof(b), b)); |
| } |
| |
| ptvp = construct_scsi_pt_obj(); |
| if (NULL == ptvp) { |
| pr2serr("%s: out of memory\n", __func__); |
| return -1; |
| } |
| set_scsi_pt_cdb(ptvp, rb16_cb, sizeof(rb16_cb)); |
| set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| set_scsi_pt_data_in(ptvp, (uint8_t *)resp, op->rb_len); |
| res = do_scsi_pt(ptvp, op->sg_fd, DEF_PT_TIMEOUT, op->verbose); |
| ret = sg_cmds_process_resp(ptvp, "Read buffer(16)", res, noisy, |
| op->verbose, &sense_cat); |
| if (-1 == ret) { |
| if (get_scsi_pt_transport_err(ptvp)) |
| ret = SG_LIB_TRANSPORT_ERROR; |
| else |
| 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; |
| default: |
| ret = sense_cat; |
| break; |
| } |
| } else { |
| if ((op->verbose > 2) && (ret > 0)) { |
| pr2serr(" Read buffer(16): response%s\n", |
| (ret > 256 ? ", first 256 bytes" : "")); |
| hex2stderr((const uint8_t *)resp, (ret > 256 ? 256 : ret), -1); |
| } |
| ret = 0; |
| } |
| if (residp) |
| *residp = get_scsi_pt_resid(ptvp); |
| destruct_scsi_pt_obj(ptvp); |
| return ret; |
| } |
| |
| /* Microcode status: active, redundant and download */ |
| static const char * act_micro_st_arr[] = { |
| "Microcode status not reported", |
| "Activated microcode is valid", |
| "Activated microcode is not valid", |
| "Activated microcode is not a full microcode image", |
| }; |
| |
| static const char * red_micro_st_arr[] = { |
| "Redundant microcode status is not reported", |
| "At least one redundant microcode copy is valid", |
| "No redundant microcode copy is valid", |
| "Redundant microcode is not a full microcode image", |
| }; |
| |
| /* Major overlap between this SPC-4 table and SES-4r2 table 63 */ |
| struct sg_lib_simple_value_name_t down_micro_st_arr[] = { |
| {0x0, "No download microcode operation in progress"}, |
| {0x1, "Download in progress, awaiting more"}, /* SES */ |
| {0x2, "Download complete, updating storage"}, /* SES */ |
| {0x3, "Updating storage with deferred microcode"}, /* SES */ |
| {0x10, "Complete, no error, starting now"}, /* SES */ |
| {0x11, "Complete, no error, start after hard reset or power " |
| "cycle"}, /* SES */ |
| {0x12, "Complete, no error, start after power cycle"}, /* SES */ |
| {0x13, "Complete, no error, start after activate_mc, hard reset or " |
| "power cycle"}, /* SES */ |
| {0x21, "Download in progress, awaiting more"}, /* SPC-6 */ |
| {0x22, "Download complete, updating storage"}, /* SPC-6 */ |
| {0x23, "Updating storage with deferred microcode"}, /* SPC-6 */ |
| {0x30, "Deferred microcode download complete, no reports"}, /* SPC-6 */ |
| {0x31, "Deferred download ok, await hard reset or power cycle"}, |
| {0x32, "Deferred download ok, await power cycle"}, /* SPC-6 */ |
| {0x33, "Deferred download ok, await any event"}, /* SPC-6 */ |
| {0x34, "Deferred download ok, await Write buffer command"}, /* SPC-6 */ |
| {0x35, "Deferred download ok, await any event, WB only this LU"}, |
| {0x80, "Error, discarded, see additional status"}, /* SES */ |
| {0x81, "Error, discarded, image error"}, /* SES */ |
| {0x82, "Timeout, discarded"}, /* SES */ |
| {0x83, "Internal error, need new microcode before reset"}, /* SES */ |
| {0x84, "Internal error, need new microcode, reset safe"}, /* SES */ |
| {0x85, "Unexpected activate_mc received"}, /* SES */ |
| {0x90, "Error, discarded, see additional status"}, /* SPC-6 */ |
| {0x91, "Error, discarded, image error"}, /* SPC-6 */ |
| {0x92, "Timeout, discarded"}, /* SPC-6 */ |
| {0x93, "Internal error, need new microcode before reset"}, /* SPC-6 */ |
| {0x94, "Internal error, need new microcode, reset safe"}, /* SPC-6 */ |
| {0x95, "Unexpected activate_mc received, mcrocode discard"}, /* SPC-6 */ |
| {0x1000, NULL}, /* End sentinel */ |
| }; |
| |
| static void |
| decode_microcode_status(const uint8_t * resp, const struct opts_t * op) |
| { |
| int n; |
| uint32_t u; |
| const char * cp; |
| const struct sg_lib_simple_value_name_t * vnp; |
| char b[32]; |
| |
| if ((NULL == resp) || (op->rb_len < 1)) |
| return; |
| n = resp[0]; |
| if (n < (int)SG_ARRAY_SIZE(act_micro_st_arr)) |
| cp = act_micro_st_arr[n]; |
| else { |
| snprintf(b, sizeof(b), "unknown [0x%x]", n); |
| cp = b; |
| } |
| printf("Activated microcode status: %s\n", cp); |
| |
| if (op->rb_len < 2) |
| return; |
| n = resp[1]; |
| if (n < (int)SG_ARRAY_SIZE(red_micro_st_arr)) |
| cp = red_micro_st_arr[n]; |
| else { |
| snprintf(b, sizeof(b), "unknown [0x%x]", n); |
| cp = b; |
| } |
| printf("Redundant microcode status: %s\n", cp); |
| |
| if (op->rb_len < 3) |
| return; |
| n = resp[2]; |
| for (vnp = down_micro_st_arr, cp = NULL; vnp->name; ++vnp) { |
| if (vnp->value == n) { |
| cp = vnp->name; |
| break; |
| } |
| } |
| if (NULL == cp) { |
| snprintf(b, sizeof(b), "unknown [0x%x]", n); |
| cp = b; |
| } |
| printf("Download microcode status: %s\n", cp); |
| |
| if (op->rb_len > 7) { |
| u = sg_get_unaligned_be32(resp + 4); |
| printf("Download microcode maximum size (bytes): %u [0x%x]\n", u, u); |
| } |
| if (op->rb_len > 15) { |
| u = sg_get_unaligned_be32(resp + 12); |
| printf("Download microcode expected buffer offset (bytes): %u " |
| "[0x%x]\n", u, u); |
| } |
| } |
| |
| static void |
| decode_error_history(const uint8_t * resp, const struct opts_t * op) |
| { |
| static const char * eh_s = "Error history"; |
| int k, num; |
| uint32_t dir_len; |
| const uint8_t * up; |
| |
| if (op->rb_id < 0x4) { /* eh directory variants */ |
| if (op->rb_len < 8) { |
| pr2serr("%s response buffer too short [%d] to show directory " |
| "header\n", eh_s, op->rb_len); |
| return; |
| } |
| printf("%s directory header:\n", eh_s); |
| printf(" T10 Vendor: %.8s\n", resp + 0); |
| printf(" Version: %u\n", resp[8]); |
| printf(" EHS_retrieved: %u\n", 0x3 & (resp[9] >> 3)); |
| printf(" EHS_source: %u\n", 0x3 & (resp[9] >> 1)); |
| printf(" CLR_SUP: %u\n", 0x1 & resp[9]); |
| if (op->rb_len < 32) { |
| pr2serr("%s response buffer too short [%d] to show directory " |
| "length\n", eh_s, op->rb_len); |
| return; |
| } |
| dir_len = sg_get_unaligned_be16(resp + 30); |
| printf(" Directory length: %u\n", dir_len); |
| if ((unsigned)op->rb_len < (32 + dir_len)) { |
| pr2serr("%s directory entries truncated, try adding '-l %u' " |
| "option\n", eh_s, 32 + dir_len); |
| } |
| num = (op->rb_len - 32) / 8; |
| for (k = 0, up = resp + 32; k < num; ++k, up += 8) { |
| if (k > 0) |
| printf("\n"); |
| printf(" Supported buffer ID: 0x%x\n", up[0]); |
| printf(" Buffer format: 0x%x\n", up[1]); |
| printf(" Buffer source: 0x%x\n", 0xf & up[2]); |
| printf(" Maximum available length: 0x%x\n", |
| sg_get_unaligned_be32(up + 4)); |
| } |
| } else if ((op->rb_id >= 0x10) && (op->rb_id <= 0xef)) |
| hex2stdout(resp, op->rb_len, (op->verbose > 1 ? 0 : 1)); |
| else if (0xfe == op->rb_id) |
| pr2serr("clear %s I_T nexus [0x%x]\n", eh_s, op->rb_id); |
| else if (0xff == op->rb_id) |
| pr2serr("clear %s I_T nexus and release any snapshots [0x%x]\n", |
| eh_s, op->rb_id); |
| else |
| pr2serr("Reserved Buffer ID value [0x%x] for %s\n", op->rb_id, eh_s); |
| |
| } |
| |
| static void |
| dStrRaw(const uint8_t * str, int len) |
| { |
| int k; |
| |
| for (k = 0; k < len; ++k) |
| printf("%c", str[k]); |
| } |
| |
| int |
| main(int argc, char * argv[]) |
| { |
| int res, c, len, k; |
| int inhex_len = 0; |
| int resid = 0; |
| int ret = 0; |
| int64_t ll; |
| const char * cp = NULL; |
| uint8_t * resp = NULL; |
| uint8_t * free_resp = NULL; |
| const struct mode_s * mp; |
| struct opts_t opts SG_C_CPP_ZERO_INIT; |
| struct opts_t * op = &opts; |
| |
| op->sg_fd = -1; |
| op->rb_len = DEF_RESPONSE_LEN; |
| |
| while (1) { |
| int option_index = 0; |
| |
| c = getopt_long(argc, argv, "e:hHi:I:l:Lm:No:rRS:vV", long_options, |
| &option_index); |
| if (c == -1) |
| break; |
| |
| switch (c) { |
| case 'e': |
| if (op->rb_mode_given && (MODE_ERR_HISTORY != op->rb_mode)) { |
| pr2serr("mode incompatible with --eh_code= option\n"); |
| return SG_LIB_CONTRADICT; |
| } |
| op->eh_code = sg_get_num(optarg); |
| if ((op->eh_code < 0) || (op->eh_code > 255)) { |
| pr2serr("argument to '--eh_code=' should be in the range 0 " |
| "to 255\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| op->rb_mode = MODE_ERR_HISTORY; |
| op->eh_code_given = true; |
| break; |
| case 'h': |
| case '?': |
| ++op->do_help; |
| break; |
| case 'H': |
| ++op->do_hex; |
| break; |
| case 'i': |
| op->rb_id = sg_get_num(optarg); |
| if ((op->rb_id < 0) || (op->rb_id > 255)) { |
| pr2serr("argument to '--id=' should be in the range 0 to " |
| "255\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| op->rb_id_given = true; |
| break; |
| case 'I': |
| if (op->inhex_name) { |
| pr2serr("--inhex= option given more than once. Once only " |
| "please\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } else |
| op->inhex_name = optarg; |
| break; |
| case 'l': |
| op->rb_len = sg_get_num(optarg); |
| if (op->rb_len < 0) { |
| pr2serr("bad argument to '--length'\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| if (op->rb_len > 0xffffff) { |
| pr2serr("argument to '--length' must be <= 0xffffff\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| op->rb_len_given = true; |
| break; |
| case 'L': |
| op->do_long = true; |
| break; |
| case 'm': |
| if (NULL == optarg) { |
| pr2serr("bad argument to '--mode'\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } else if (isdigit((uint8_t)*optarg)) { |
| op->rb_mode = sg_get_num(optarg); |
| if ((op->rb_mode < 0) || (op->rb_mode > 31)) { |
| pr2serr("argument to '--mode' should be in the range 0 " |
| "to 31\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| } else { |
| len = strlen(optarg); |
| for (mp = modes; mp->mode_string; ++mp) { |
| cp = strchr(mp->mode_string, '|'); |
| if (NULL == cp) { |
| if (0 == strncmp(mp->mode_string, optarg, len)) { |
| op->rb_mode = mp->mode; |
| break; |
| } |
| } else { |
| int f_len = cp - mp->mode_string; |
| |
| if ((f_len == len) && |
| (0 == memcmp(mp->mode_string, optarg, len))) { |
| op->rb_mode = mp->mode; |
| break; |
| } |
| if (0 == strncmp(cp + 1, optarg, len)) { |
| op->rb_mode = mp->mode; |
| break; |
| } |
| } |
| } |
| if (NULL == mp->mode_string) { |
| print_modes(); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| } |
| if (op->eh_code_given && (MODE_ERR_HISTORY != op->rb_mode)) { |
| pr2serr("mode incompatible with --eh_code= option\n"); |
| return SG_LIB_CONTRADICT; |
| } |
| op->rb_mode_given = true; |
| break; |
| case 'N': |
| op->no_output = true; |
| break; |
| case 'o': |
| ll = sg_get_llnum(optarg); |
| if (ll < 0) { |
| pr2serr("bad argument to '--offset'\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| op->rb_offset = ll; |
| break; |
| case 'r': |
| op->do_raw = true; |
| break; |
| case 'R': |
| op->o_readonly = true; |
| break; |
| case 'S': |
| op->rb_mode_sp = sg_get_num(optarg); |
| if ((op->rb_mode_sp < 0) || (op->rb_mode_sp > 7)) { |
| pr2serr("expected argument to '--specific' to be 0 to 7\n"); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| break; |
| case 'v': |
| op->verbose_given = true; |
| ++op->verbose; |
| break; |
| case 'V': |
| op->version_given = true; |
| break; |
| default: |
| pr2serr("unrecognised option code 0x%x ??\n", c); |
| usage(); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| } |
| if (op->do_help) { |
| if (op->do_help > 1) { |
| usage(); |
| pr2serr("\n"); |
| print_modes(); |
| } else |
| usage(); |
| return 0; |
| } |
| 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(); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| } |
| |
| #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("version: %s\n", version_str); |
| return 0; |
| } |
| if ((MODE_ERR_HISTORY == op->rb_mode) && (NULL == op->inhex_name)) { |
| if (! op->rb_len_given) |
| op->rb_len = 64; |
| } |
| if (op->eh_code_given) { |
| if (op->rb_id_given && (op->eh_code != op->rb_id)) { |
| pr2serr("Buffer ID incompatible with --eh_code= option\n"); |
| return SG_LIB_CONTRADICT; |
| } |
| op->rb_id = op->eh_code; |
| } |
| |
| if (op->device_name && op->inhex_name) { |
| pr2serr("Confused: both DEVICE (%s) and --inhex= option given. One " |
| "only please\n", op->device_name); |
| return SG_LIB_SYNTAX_ERROR; |
| } else if (op->inhex_name) { |
| op->rb_len = (op->rb_len > MAX_DEF_INHEX_LEN) ? op->rb_len : |
| MAX_DEF_INHEX_LEN; |
| resp = (uint8_t *)sg_memalign(op->rb_len, 0, &free_resp, false); |
| ret = sg_f2hex_arr(op->inhex_name, op->do_raw, false, resp, |
| &inhex_len, op->rb_len); |
| if (ret) |
| goto fini; |
| if (op->do_raw) |
| op->do_raw = false; /* only used for input in this case */ |
| op->rb_len = inhex_len; |
| resid = 0; |
| goto decode_result; |
| } else if (NULL == op->device_name) { |
| pr2serr("Missing device name!\n\n"); |
| usage(); |
| return SG_LIB_SYNTAX_ERROR; |
| } |
| |
| len = op->rb_len ? op->rb_len : 8; |
| resp = (uint8_t *)sg_memalign(len, 0, &free_resp, false); |
| if (NULL == resp) { |
| pr2serr("unable to allocate %d bytes on the heap\n", len); |
| return SG_LIB_CAT_OTHER; |
| } |
| |
| if (op->do_raw) { |
| if (sg_set_binary_mode(STDOUT_FILENO) < 0) { |
| perror("sg_set_binary_mode"); |
| ret = SG_LIB_FILE_ERROR; |
| goto fini; |
| } |
| } |
| |
| #ifdef SG_LIB_WIN32 |
| #ifdef SG_LIB_WIN32_DIRECT |
| if (op->verbose > 4) |
| pr2serr("Initial win32 SPT interface state: %s\n", |
| scsi_pt_win32_spt_state() ? "direct" : "indirect"); |
| scsi_pt_win32_direct(SG_LIB_WIN32_DIRECT /* SPT pt interface */); |
| #endif |
| #endif |
| |
| op->sg_fd = sg_cmds_open_device(op->device_name, op->o_readonly, |
| op->verbose); |
| if (op->sg_fd < 0) { |
| if (op->verbose) |
| pr2serr("open error: %s: %s\n", op->device_name, |
| safe_strerror(-op->sg_fd)); |
| ret = sg_convert_errno(-op->sg_fd); |
| goto fini; |
| } |
| |
| if (op->do_long) |
| res = sg_ll_read_buffer_16(resp, &resid, true, op); |
| else if (op->rb_offset > 0xffffff) { |
| pr2serr("--offset value is too large for READ BUFFER(10), try " |
| "--16\n"); |
| ret = SG_LIB_SYNTAX_ERROR; |
| goto fini; |
| } else |
| res = sg_ll_read_buffer_10(resp, &resid, true, op); |
| if (0 != res) { |
| char b[80]; |
| |
| ret = res; |
| if (res > 0) { |
| sg_get_category_sense_str(res, sizeof(b), b, op->verbose); |
| pr2serr("Read buffer(%d) failed: %s\n", |
| (op->do_long ? 16 : 10), b); |
| } |
| goto fini; |
| } |
| if (resid > 0) |
| op->rb_len -= resid; /* got back less than requested */ |
| if (op->no_output) |
| goto fini; |
| decode_result: |
| if (op->rb_len > 0) { |
| if (op->do_raw) |
| dStrRaw(resp, op->rb_len); |
| else if (op->do_hex || (op->rb_len < 4)) { |
| k = (op->do_hex > 2) ? -1 : (2 - op->do_hex); |
| hex2stdout(resp, op->rb_len, k); |
| } else { |
| switch (op->rb_mode) { |
| case MODE_DESCRIPTOR: |
| k = sg_get_unaligned_be24(resp + 1); |
| printf("OFFSET BOUNDARY: %d, Buffer offset alignment: " |
| "%d-byte\n", resp[0], (1 << resp[0])); |
| printf("BUFFER CAPACITY: %d (0x%x)\n", k, k); |
| break; |
| case MODE_ECHO_BDESC: |
| k = sg_get_unaligned_be16(resp + 2) & 0x1fff; |
| printf("EBOS:%d\n", resp[0] & 1 ? 1 : 0); |
| printf("Echo buffer capacity: %d (0x%x)\n", k, k); |
| break; |
| case MODE_READ_MICROCODE_ST: |
| decode_microcode_status(resp, op); |
| break; |
| case MODE_ERR_HISTORY: |
| decode_error_history(resp, op); |
| break; |
| default: |
| hex2stdout(resp, op->rb_len, (op->verbose > 1 ? 0 : 1)); |
| break; |
| } |
| } |
| } |
| |
| fini: |
| if (free_resp) |
| free(free_resp); |
| if (op->sg_fd >= 0) { |
| res = sg_cmds_close_device(op->sg_fd); |
| if (res < 0) { |
| pr2serr("close error: %s\n", safe_strerror(-res)); |
| if (0 == ret) |
| ret = sg_convert_errno(-res); |
| } |
| } |
| if (0 == op->verbose) { |
| if (! sg_if_can2stderr("sg_read_buffer failed: ", ret)) |
| pr2serr("Some error occurred, try again with '-v' " |
| "or '-vv' for more information\n"); |
| } |
| return (ret >= 0) ? ret : SG_LIB_CAT_OTHER; |
| } |
