| /* |
| * Copyright (c) 1999-2013 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. |
| */ |
| |
| /* |
| * CONTENTS |
| * Some SCSI commands are executed in many contexts and hence began |
| * to appear in several sg3_utils utilities. This files centralizes |
| * some of the low level command execution code. In most cases the |
| * interpretation of the command response is left to the each |
| * utility. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include "sg_lib.h" |
| #include "sg_cmds_basic.h" |
| #include "sg_pt.h" |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| |
| static const char * version_str = "1.64 20131217"; |
| |
| |
| #define SENSE_BUFF_LEN 64 /* Arbitrary, could be larger */ |
| #define EBUFF_SZ 256 |
| |
| #define DEF_PT_TIMEOUT 60 /* 60 seconds */ |
| #define START_PT_TIMEOUT 120 /* 120 seconds == 2 minutes */ |
| #define LONG_PT_TIMEOUT 7200 /* 7,200 seconds == 120 minutes */ |
| |
| #define INQUIRY_CMD 0x12 |
| #define INQUIRY_CMDLEN 6 |
| #define REQUEST_SENSE_CMD 0x3 |
| #define REQUEST_SENSE_CMDLEN 6 |
| #define REPORT_LUNS_CMD 0xa0 |
| #define REPORT_LUNS_CMDLEN 12 |
| #define TUR_CMD 0x0 |
| #define TUR_CMDLEN 6 |
| |
| #define INQUIRY_RESP_INITIAL_LEN 36 |
| |
| |
| const char * |
| sg_cmds_version() |
| { |
| return version_str; |
| } |
| |
| /* Returns file descriptor >= 0 if successful. If error in Unix returns |
| negated errno. */ |
| int |
| sg_cmds_open_device(const char * device_name, int read_only, int verbose) |
| { |
| return scsi_pt_open_device(device_name, read_only, verbose); |
| } |
| |
| /* Returns file descriptor >= 0 if successful. If error in Unix returns |
| negated errno. */ |
| int |
| sg_cmds_open_flags(const char * device_name, int flags, int verbose) |
| { |
| return scsi_pt_open_flags(device_name, flags, verbose); |
| } |
| |
| /* Returns 0 if successful. If error in Unix returns negated errno. */ |
| int |
| sg_cmds_close_device(int device_fd) |
| { |
| return scsi_pt_close_device(device_fd); |
| } |
| |
| static int |
| sg_cmds_process_helper(const char * leadin, int mx_di_len, int resid, |
| const unsigned char * sbp, int slen, int noisy, |
| int verbose, int * o_sense_cat) |
| { |
| int scat, got; |
| int n = 0; |
| int check_data_in = 0; |
| char b[512]; |
| |
| scat = sg_err_category_sense(sbp, slen); |
| switch (scat) { |
| case SG_LIB_CAT_NOT_READY: |
| case SG_LIB_CAT_INVALID_OP: |
| case SG_LIB_CAT_ILLEGAL_REQ: |
| case SG_LIB_CAT_ABORTED_COMMAND: |
| case SG_LIB_CAT_NO_SENSE: |
| n = 0; |
| break; |
| case SG_LIB_CAT_RECOVERED: |
| case SG_LIB_CAT_MEDIUM_HARD: |
| ++check_data_in; |
| /* drop through */ |
| case SG_LIB_CAT_UNIT_ATTENTION: |
| default: |
| n = noisy; |
| break; |
| } |
| if (verbose || n) { |
| sg_get_sense_str(leadin, sbp, slen, (verbose > 1), |
| sizeof(b), b); |
| fprintf(sg_warnings_strm, "%s", b); |
| if ((mx_di_len > 0) && (resid > 0)) { |
| got = mx_di_len - resid; |
| if ((verbose > 2) || check_data_in || (got > 0)) |
| fprintf(sg_warnings_strm, " pass-through requested " |
| "%d bytes but got %d bytes\n", mx_di_len, got); |
| } |
| } |
| if (o_sense_cat) |
| *o_sense_cat = scat; |
| return -2; |
| } |
| |
| /* This is a helper function used by sg_cmds_* implementations after |
| * the call to the pass-through. pt_res is returned from do_scsi_pt(). |
| * If valid sense data is found it is decoded and output to sg_warnings_strm |
| * (def: stderr); depending on the 'noisy' and 'verbose' settings. |
| * Returns -2 for sense data (may not be fatal), -1 for failed, or the |
| * number of data in bytes received. For data out (to device) or no data, |
| * set 'mx_di_len' to 0 or less. If -2 returned then sense category |
| * output via 'o_sense_cat' pointer (if not NULL). Note that several sense |
| * categories also have data in bytes received; -2 is still returned. */ |
| int |
| sg_cmds_process_resp(struct sg_pt_base * ptvp, const char * leadin, |
| int pt_res, int mx_di_len, const unsigned char * sbp, |
| int noisy, int verbose, int * o_sense_cat) |
| { |
| int got, cat, duration, slen, resid, resp_code; |
| char b[1024]; |
| |
| if (NULL == sg_warnings_strm) |
| sg_warnings_strm = stderr; |
| if (NULL == leadin) |
| leadin = ""; |
| if (pt_res < 0) { |
| if (noisy || verbose) |
| fprintf(sg_warnings_strm, "%s: pass through os error: %s\n", |
| leadin, safe_strerror(-pt_res)); |
| return -1; |
| } else if (SCSI_PT_DO_BAD_PARAMS == pt_res) { |
| fprintf(sg_warnings_strm, "%s: bad pass through setup\n", leadin); |
| return -1; |
| } else if (SCSI_PT_DO_TIMEOUT == pt_res) { |
| fprintf(sg_warnings_strm, "%s: pass through timeout\n", leadin); |
| return -1; |
| } |
| if ((verbose > 2) && ((duration = get_scsi_pt_duration_ms(ptvp)) >= 0)) |
| fprintf(sg_warnings_strm, " duration=%d ms\n", duration); |
| resid = (mx_di_len > 0) ? get_scsi_pt_resid(ptvp) : 0; |
| slen = get_scsi_pt_sense_len(ptvp); |
| switch ((cat = get_scsi_pt_result_category(ptvp))) { |
| case SCSI_PT_RESULT_GOOD: |
| if (slen > 7) { |
| resp_code = sbp[0] & 0x7f; |
| /* SBC referrals can have status=GOOD and sense_key=COMPLETED */ |
| if (resp_code >= 0x70) { |
| if (resp_code < 0x72) { |
| if (SPC_SK_NO_SENSE != (0xf & sbp[2])) |
| sg_err_category_sense(sbp, slen); |
| } else if (resp_code < 0x74) { |
| if (SPC_SK_NO_SENSE != (0xf & sbp[1])) |
| sg_err_category_sense(sbp, slen); |
| } |
| } |
| } |
| if (mx_di_len > 0) { |
| got = mx_di_len - resid; |
| if (verbose && (resid > 0)) |
| fprintf(sg_warnings_strm, " %s: pass-through requested " |
| "%d bytes but got %d bytes\n", leadin, mx_di_len, |
| got); |
| return got; |
| } else |
| return 0; |
| case SCSI_PT_RESULT_STATUS: /* other than GOOD and CHECK CONDITION */ |
| if (verbose || noisy) { |
| sg_get_scsi_status_str(get_scsi_pt_status_response(ptvp), |
| sizeof(b), b); |
| fprintf(sg_warnings_strm, "%s: scsi status: %s\n", leadin, b); |
| } |
| return -1; |
| case SCSI_PT_RESULT_SENSE: |
| return sg_cmds_process_helper(leadin, mx_di_len, resid, sbp, slen, |
| noisy, verbose, o_sense_cat); |
| case SCSI_PT_RESULT_TRANSPORT_ERR: |
| if (verbose || noisy) { |
| get_scsi_pt_transport_err_str(ptvp, sizeof(b), b); |
| fprintf(sg_warnings_strm, "%s: transport: %s\n", leadin, b); |
| } |
| if ((SAM_STAT_CHECK_CONDITION == get_scsi_pt_status_response(ptvp)) |
| && (slen > 0)) |
| return sg_cmds_process_helper(leadin, mx_di_len, resid, sbp, |
| slen, noisy, verbose, o_sense_cat); |
| else |
| return -1; |
| case SCSI_PT_RESULT_OS_ERR: |
| if (verbose || noisy) { |
| get_scsi_pt_os_err_str(ptvp, sizeof(b), b); |
| fprintf(sg_warnings_strm, "%s: os: %s\n", leadin, b); |
| } |
| return -1; |
| default: |
| fprintf(sg_warnings_strm, "%s: unknown pass through result " |
| "category (%d)\n", leadin, cat); |
| return -1; |
| } |
| } |
| |
| /* Invokes a SCSI INQUIRY command and yields the response |
| * Returns 0 when successful, SG_LIB_CAT_INVALID_OP -> not supported, |
| * SG_LIB_CAT_ILLEGAL_REQ -> bad field in cdb, SG_LIB_CAT_ABORTED_COMMAND, |
| * SG_LIB_CAT_MALFORMED -> bad response, -1 -> other errors */ |
| int |
| sg_ll_inquiry(int sg_fd, int cmddt, int evpd, int pg_op, void * resp, |
| int mx_resp_len, int noisy, int verbose) |
| { |
| int res, ret, k, sense_cat; |
| unsigned char inqCmdBlk[INQUIRY_CMDLEN] = {INQUIRY_CMD, 0, 0, 0, 0, 0}; |
| unsigned char sense_b[SENSE_BUFF_LEN]; |
| unsigned char * up; |
| struct sg_pt_base * ptvp; |
| |
| if (cmddt) |
| inqCmdBlk[1] |= 2; |
| if (evpd) |
| inqCmdBlk[1] |= 1; |
| inqCmdBlk[2] = (unsigned char)pg_op; |
| /* 16 bit allocation length (was 8) is a recent SPC-3 addition */ |
| inqCmdBlk[3] = (unsigned char)((mx_resp_len >> 8) & 0xff); |
| inqCmdBlk[4] = (unsigned char)(mx_resp_len & 0xff); |
| if (NULL == sg_warnings_strm) |
| sg_warnings_strm = stderr; |
| if (verbose) { |
| fprintf(sg_warnings_strm, " inquiry cdb: "); |
| for (k = 0; k < INQUIRY_CMDLEN; ++k) |
| fprintf(sg_warnings_strm, "%02x ", inqCmdBlk[k]); |
| fprintf(sg_warnings_strm, "\n"); |
| } |
| if (resp && (mx_resp_len > 0)) { |
| up = (unsigned char *)resp; |
| up[0] = 0x7f; /* defensive prefill */ |
| if (mx_resp_len > 4) |
| up[4] = 0; |
| } |
| ptvp = construct_scsi_pt_obj(); |
| if (NULL == ptvp) { |
| fprintf(sg_warnings_strm, "inquiry: out of memory\n"); |
| return -1; |
| } |
| set_scsi_pt_cdb(ptvp, inqCmdBlk, sizeof(inqCmdBlk)); |
| set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| set_scsi_pt_data_in(ptvp, (unsigned char *)resp, mx_resp_len); |
| res = do_scsi_pt(ptvp, sg_fd, DEF_PT_TIMEOUT, verbose); |
| ret = sg_cmds_process_resp(ptvp, "inquiry", res, mx_resp_len, sense_b, |
| noisy, verbose, &sense_cat); |
| destruct_scsi_pt_obj(ptvp); |
| if (-1 == ret) |
| ; |
| else if (-2 == ret) { |
| switch (sense_cat) { |
| case SG_LIB_CAT_INVALID_OP: |
| case SG_LIB_CAT_ILLEGAL_REQ: |
| case SG_LIB_CAT_ABORTED_COMMAND: |
| ret = sense_cat; |
| break; |
| case SG_LIB_CAT_RECOVERED: |
| case SG_LIB_CAT_NO_SENSE: |
| ret = 0; |
| break; |
| default: |
| ret = -1; |
| break; |
| } |
| } else if (ret < 4) { |
| if (verbose) |
| fprintf(sg_warnings_strm, "inquiry: got too few " |
| "bytes (%d)\n", ret); |
| ret = SG_LIB_CAT_MALFORMED; |
| } else |
| ret = 0; |
| |
| return ret; |
| } |
| |
| /* Yields most of first 36 bytes of a standard INQUIRY (evpd==0) response. |
| * Returns 0 when successful, SG_LIB_CAT_INVALID_OP -> not supported, |
| * SG_LIB_CAT_ILLEGAL_REQ -> bad field in cdb, SG_LIB_CAT_ABORTED_COMMAND, |
| * SG_LIB_CAT_MALFORMED -> bad response, -1 -> other errors */ |
| int |
| sg_simple_inquiry(int sg_fd, struct sg_simple_inquiry_resp * inq_data, |
| int noisy, int verbose) |
| { |
| int res, ret, k, sense_cat; |
| unsigned char inqCmdBlk[INQUIRY_CMDLEN] = {INQUIRY_CMD, 0, 0, 0, 0, 0}; |
| unsigned char sense_b[SENSE_BUFF_LEN]; |
| unsigned char inq_resp[INQUIRY_RESP_INITIAL_LEN]; |
| struct sg_pt_base * ptvp; |
| |
| if (inq_data) { |
| memset(inq_data, 0, sizeof(* inq_data)); |
| inq_data->peripheral_qualifier = 0x3; |
| inq_data->peripheral_type = 0x1f; |
| } |
| inqCmdBlk[4] = (unsigned char)sizeof(inq_resp); |
| if (NULL == sg_warnings_strm) |
| sg_warnings_strm = stderr; |
| if (verbose) { |
| fprintf(sg_warnings_strm, " inquiry cdb: "); |
| for (k = 0; k < INQUIRY_CMDLEN; ++k) |
| fprintf(sg_warnings_strm, "%02x ", inqCmdBlk[k]); |
| fprintf(sg_warnings_strm, "\n"); |
| } |
| memset(inq_resp, 0, sizeof(inq_resp)); |
| inq_resp[0] = 0x7f; /* defensive prefill */ |
| ptvp = construct_scsi_pt_obj(); |
| if (NULL == ptvp) { |
| fprintf(sg_warnings_strm, "inquiry: out of memory\n"); |
| return -1; |
| } |
| set_scsi_pt_cdb(ptvp, inqCmdBlk, sizeof(inqCmdBlk)); |
| set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| set_scsi_pt_data_in(ptvp, inq_resp, sizeof(inq_resp)); |
| res = do_scsi_pt(ptvp, sg_fd, DEF_PT_TIMEOUT, verbose); |
| ret = sg_cmds_process_resp(ptvp, "inquiry", res, sizeof(inq_resp), |
| sense_b, noisy, verbose, &sense_cat); |
| if (-1 == ret) |
| ; |
| else if (-2 == ret) { |
| switch (sense_cat) { |
| case SG_LIB_CAT_INVALID_OP: |
| case SG_LIB_CAT_ILLEGAL_REQ: |
| case SG_LIB_CAT_ABORTED_COMMAND: |
| ret = sense_cat; |
| break; |
| case SG_LIB_CAT_RECOVERED: |
| case SG_LIB_CAT_NO_SENSE: |
| ret = 0; |
| break; |
| default: |
| ret = -1; |
| break; |
| } |
| } else if (ret < 4) { |
| if (verbose) |
| fprintf(sg_warnings_strm, "inquiry: got too few " |
| "bytes (%d)\n", ret); |
| ret = SG_LIB_CAT_MALFORMED; |
| } else |
| ret = 0; |
| |
| if (0 == ret) { |
| inq_data->peripheral_qualifier = (inq_resp[0] >> 5) & 0x7; |
| inq_data->peripheral_type = inq_resp[0] & 0x1f; |
| inq_data->rmb = (inq_resp[1] & 0x80) ? 1 : 0; |
| inq_data->version = inq_resp[2]; |
| inq_data->byte_3 = inq_resp[3]; |
| inq_data->byte_5 = inq_resp[5]; |
| inq_data->byte_6 = inq_resp[6]; |
| inq_data->byte_7 = inq_resp[7]; |
| memcpy(inq_data->vendor, inq_resp + 8, 8); |
| memcpy(inq_data->product, inq_resp + 16, 16); |
| memcpy(inq_data->revision, inq_resp + 32, 4); |
| } |
| destruct_scsi_pt_obj(ptvp); |
| return ret; |
| } |
| |
| /* Invokes a SCSI TEST UNIT READY command. |
| * 'pack_id' is just for diagnostics, safe to set to 0. |
| * Looks for progress indicator if 'progress' non-NULL; |
| * if found writes value [0..65535] else write -1. |
| * Return of 0 -> success, SG_LIB_CAT_UNIT_ATTENTION, |
| * SG_LIB_CAT_ABORTED_COMMAND, SG_LIB_CAT_NOT_READY -> |
| * device not ready, -1 -> other failure */ |
| int |
| sg_ll_test_unit_ready_progress(int sg_fd, int pack_id, int * progress, |
| int noisy, int verbose) |
| { |
| int res, ret, k, sense_cat; |
| unsigned char turCmdBlk[TUR_CMDLEN] = {TUR_CMD, 0, 0, 0, 0, 0}; |
| unsigned char sense_b[SENSE_BUFF_LEN]; |
| struct sg_pt_base * ptvp; |
| |
| if (NULL == sg_warnings_strm) |
| sg_warnings_strm = stderr; |
| if (verbose) { |
| fprintf(sg_warnings_strm, " test unit ready cdb: "); |
| for (k = 0; k < TUR_CMDLEN; ++k) |
| fprintf(sg_warnings_strm, "%02x ", turCmdBlk[k]); |
| fprintf(sg_warnings_strm, "\n"); |
| } |
| |
| ptvp = construct_scsi_pt_obj(); |
| if (NULL == ptvp) { |
| fprintf(sg_warnings_strm, "test unit ready: out of memory\n"); |
| return -1; |
| } |
| set_scsi_pt_cdb(ptvp, turCmdBlk, sizeof(turCmdBlk)); |
| set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| set_scsi_pt_packet_id(ptvp, pack_id); |
| res = do_scsi_pt(ptvp, sg_fd, DEF_PT_TIMEOUT, verbose); |
| ret = sg_cmds_process_resp(ptvp, "test unit ready", res, 0, sense_b, |
| noisy, verbose, &sense_cat); |
| if (-1 == ret) |
| ; |
| else if (-2 == ret) { |
| if (progress) { |
| int slen = get_scsi_pt_sense_len(ptvp); |
| |
| if (! sg_get_sense_progress_fld(sense_b, slen, progress)) |
| *progress = -1; |
| } |
| switch (sense_cat) { |
| case SG_LIB_CAT_UNIT_ATTENTION: |
| case SG_LIB_CAT_NOT_READY: |
| case SG_LIB_CAT_ABORTED_COMMAND: |
| ret = sense_cat; |
| break; |
| case SG_LIB_CAT_RECOVERED: |
| case SG_LIB_CAT_NO_SENSE: |
| ret = 0; |
| break; |
| case SG_LIB_CAT_INVALID_OP: |
| case SG_LIB_CAT_ILLEGAL_REQ: |
| default: |
| ret = -1; |
| break; |
| } |
| } else |
| ret = 0; |
| |
| destruct_scsi_pt_obj(ptvp); |
| return ret; |
| } |
| |
| /* Invokes a SCSI TEST UNIT READY command. |
| * 'pack_id' is just for diagnostics, safe to set to 0. |
| * Return of 0 -> success, SG_LIB_CAT_UNIT_ATTENTION, |
| * SG_LIB_CAT_ABORTED_COMMAND, SG_LIB_CAT_NOT_READY -> |
| * device not ready, -1 -> other failure */ |
| int |
| sg_ll_test_unit_ready(int sg_fd, int pack_id, int noisy, int verbose) |
| { |
| return sg_ll_test_unit_ready_progress(sg_fd, pack_id, NULL, noisy, |
| verbose); |
| } |
| |
| /* Invokes a SCSI REQUEST SENSE command. Return of 0 -> success, |
| * SG_LIB_CAT_INVALID_OP -> Request Sense not supported??, |
| * SG_LIB_CAT_ILLEGAL_REQ -> bad field in cdb, |
| * SG_LIB_CAT_ABORTED_COMMAND, -1 -> other failure */ |
| int |
| sg_ll_request_sense(int sg_fd, int desc, void * resp, int mx_resp_len, |
| int noisy, int verbose) |
| { |
| int k, ret, res, sense_cat; |
| unsigned char rsCmdBlk[REQUEST_SENSE_CMDLEN] = |
| {REQUEST_SENSE_CMD, 0, 0, 0, 0, 0}; |
| unsigned char sense_b[SENSE_BUFF_LEN]; |
| struct sg_pt_base * ptvp; |
| |
| if (desc) |
| rsCmdBlk[1] |= 0x1; |
| if (NULL == sg_warnings_strm) |
| sg_warnings_strm = stderr; |
| if (mx_resp_len > 0xff) { |
| fprintf(sg_warnings_strm, "mx_resp_len cannot exceed 255\n"); |
| return -1; |
| } |
| rsCmdBlk[4] = mx_resp_len & 0xff; |
| if (verbose) { |
| fprintf(sg_warnings_strm, " Request Sense cmd: "); |
| for (k = 0; k < REQUEST_SENSE_CMDLEN; ++k) |
| fprintf(sg_warnings_strm, "%02x ", rsCmdBlk[k]); |
| fprintf(sg_warnings_strm, "\n"); |
| } |
| |
| ptvp = construct_scsi_pt_obj(); |
| if (NULL == ptvp) { |
| fprintf(sg_warnings_strm, "request sense: out of memory\n"); |
| return -1; |
| } |
| set_scsi_pt_cdb(ptvp, rsCmdBlk, sizeof(rsCmdBlk)); |
| set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| set_scsi_pt_data_in(ptvp, (unsigned char *)resp, mx_resp_len); |
| res = do_scsi_pt(ptvp, sg_fd, DEF_PT_TIMEOUT, verbose); |
| ret = sg_cmds_process_resp(ptvp, "request sense", res, mx_resp_len, |
| sense_b, noisy, verbose, &sense_cat); |
| if (-1 == ret) |
| ; |
| else if (-2 == ret) { |
| switch (sense_cat) { |
| case SG_LIB_CAT_INVALID_OP: |
| case SG_LIB_CAT_ILLEGAL_REQ: |
| case SG_LIB_CAT_ABORTED_COMMAND: |
| ret = sense_cat; |
| break; |
| case SG_LIB_CAT_RECOVERED: |
| case SG_LIB_CAT_NO_SENSE: |
| ret = 0; |
| break; |
| case SG_LIB_CAT_NOT_READY: /* shouldn't happen ?? */ |
| default: |
| ret = -1; |
| break; |
| } |
| } else { |
| if ((mx_resp_len >= 8) && (ret < 8)) { |
| if (verbose) |
| fprintf(sg_warnings_strm, " request sense: got %d " |
| "bytes in response, too short\n", ret); |
| ret = -1; |
| } else |
| ret = 0; |
| } |
| destruct_scsi_pt_obj(ptvp); |
| return ret; |
| } |
| |
| /* Invokes a SCSI REPORT LUNS command. Return of 0 -> success, |
| * SG_LIB_CAT_INVALID_OP -> Report Luns not supported, |
| * SG_LIB_CAT_ILLEGAL_REQ -> bad field in cdb, |
| * SG_LIB_CAT_ABORTED_COMMAND, |
| * SG_LIB_NOT_READY (shouldn't happen), -1 -> other failure */ |
| int |
| sg_ll_report_luns(int sg_fd, int select_report, void * resp, int mx_resp_len, |
| int noisy, int verbose) |
| { |
| int k, ret, res, sense_cat; |
| unsigned char rlCmdBlk[REPORT_LUNS_CMDLEN] = |
| {REPORT_LUNS_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| unsigned char sense_b[SENSE_BUFF_LEN]; |
| struct sg_pt_base * ptvp; |
| |
| rlCmdBlk[2] = select_report & 0xff; |
| rlCmdBlk[6] = (mx_resp_len >> 24) & 0xff; |
| rlCmdBlk[7] = (mx_resp_len >> 16) & 0xff; |
| rlCmdBlk[8] = (mx_resp_len >> 8) & 0xff; |
| rlCmdBlk[9] = mx_resp_len & 0xff; |
| if (NULL == sg_warnings_strm) |
| sg_warnings_strm = stderr; |
| if (verbose) { |
| fprintf(sg_warnings_strm, " report luns cdb: "); |
| for (k = 0; k < REPORT_LUNS_CMDLEN; ++k) |
| fprintf(sg_warnings_strm, "%02x ", rlCmdBlk[k]); |
| fprintf(sg_warnings_strm, "\n"); |
| } |
| |
| ptvp = construct_scsi_pt_obj(); |
| if (NULL == ptvp) { |
| fprintf(sg_warnings_strm, "report luns: out of memory\n"); |
| return -1; |
| } |
| set_scsi_pt_cdb(ptvp, rlCmdBlk, sizeof(rlCmdBlk)); |
| set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| set_scsi_pt_data_in(ptvp, (unsigned char *)resp, mx_resp_len); |
| res = do_scsi_pt(ptvp, sg_fd, DEF_PT_TIMEOUT, verbose); |
| ret = sg_cmds_process_resp(ptvp, "report luns", res, mx_resp_len, |
| sense_b, noisy, verbose, &sense_cat); |
| if (-1 == ret) |
| ; |
| else if (-2 == ret) { |
| switch (sense_cat) { |
| case SG_LIB_CAT_INVALID_OP: |
| case SG_LIB_CAT_ILLEGAL_REQ: |
| case SG_LIB_CAT_ABORTED_COMMAND: |
| case SG_LIB_CAT_NOT_READY: /* shouldn't happen ?? */ |
| ret = sense_cat; |
| break; |
| case SG_LIB_CAT_RECOVERED: |
| case SG_LIB_CAT_NO_SENSE: |
| ret = 0; |
| break; |
| default: |
| ret = -1; |
| break; |
| } |
| } else |
| ret = 0; |
| destruct_scsi_pt_obj(ptvp); |
| return ret; |
| } |
