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+/*
+ * scsicmds.h
+ *
+ * Home page of code is: https://www.smartmontools.org
+ *
+ * Copyright (C) 2002-8 Bruce Allen
+ * Copyright (C) 2000 Michael Cornwell <cornwell@acm.org>
+ * Copyright (C) 2003-2023 Douglas Gilbert <dgilbert@interlog.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ *
+ * N.B. What was formerly known as "SMART" are now called "informational
+ * exceptions" in recent t10.org drafts (i.e. recent SCSI).
+ *
+ */
+
+
+#ifndef SCSICMDS_H_
+#define SCSICMDS_H_
+
+#define SCSICMDS_H_CVSID "$Id: scsicmds.h 5462 2023-03-13 10:45:06Z chrfranke $\n"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+/* #define SCSI_DEBUG 1 */ /* Comment out to disable command debugging */
+
+/* Following conditional defines just in case OS already has them defined.
+ * If they are defined we hope they are defined correctly (for SCSI). */
+#ifndef TEST_UNIT_READY
+#define TEST_UNIT_READY 0x0
+#endif
+#ifndef LOG_SELECT
+#define LOG_SELECT 0x4c
+#endif
+#ifndef LOG_SENSE
+#define LOG_SENSE 0x4d
+#endif
+#ifndef MODE_SENSE_6
+#define MODE_SENSE_6 0x1a
+#endif
+#ifndef MODE_SENSE_10
+#define MODE_SENSE_10 0x5a
+#endif
+#ifndef MODE_SELECT_6
+#define MODE_SELECT_6 0x15
+#endif
+#ifndef MODE_SELECT_10
+#define MODE_SELECT_10 0x55
+#endif
+#ifndef INQUIRY
+#define INQUIRY 0x12
+#endif
+#ifndef REQUEST_SENSE
+#define REQUEST_SENSE 0x03
+#endif
+#ifndef RECEIVE_DIAGNOSTIC
+#define RECEIVE_DIAGNOSTIC 0x1c
+#endif
+#ifndef SEND_DIAGNOSTIC
+#define SEND_DIAGNOSTIC 0x1d
+#endif
+#ifndef READ_DEFECT_10
+#define READ_DEFECT_10 0x37
+#endif
+#ifndef READ_DEFECT_12
+#define READ_DEFECT_12 0xb7
+#endif
+#ifndef START_STOP_UNIT /* SSU */
+#define START_STOP_UNIT 0x1b
+#endif
+#ifndef REPORT_LUNS
+#define REPORT_LUNS 0xa0
+#endif
+#ifndef READ_CAPACITY_10
+#define READ_CAPACITY_10 0x25
+#endif
+#ifndef SERVICE_ACTION_IN_16
+#define SERVICE_ACTION_IN_16 0x9e
+#endif
+#ifndef SAI_READ_CAPACITY_16 /* service action in for READ_CAPACITY_16 */
+#define SAI_READ_CAPACITY_16 0x10
+#endif
+#ifndef SAI_GET_PHY_ELEM_STATUS /* Get physical element status */
+#define SAI_GET_PHY_ELEM_STATUS 0x17
+#endif
+#ifndef SAI_REPORT_SUPPORTED_OPCODES
+#define SAI_REPORT_SUPPORTED_OPCODES 0xc
+#endif
+#ifndef MAINTENANCE_IN_12
+#define MAINTENANCE_IN_12 0xa3
+#endif
+#ifndef MI_REP_SUP_OPCODES
+#define MI_REP_SUP_OPCODES 0xc /* maintenance in (12) */
+#endif
+
+#ifndef SAT_ATA_PASSTHROUGH_12
+#define SAT_ATA_PASSTHROUGH_12 0xa1
+#endif
+#ifndef SAT_ATA_PASSTHROUGH_16
+#define SAT_ATA_PASSTHROUGH_16 0x85
+#endif
+
+
+#define DXFER_NONE 0
+#define DXFER_FROM_DEVICE 1
+#define DXFER_TO_DEVICE 2
+
+
+/* scsi_rsoc_elem and scsi_device is defined in dev_interface.h */
+
+struct scsi_cmnd_io
+{
+ uint8_t * cmnd; /* [in]: ptr to SCSI command block (cdb) */
+ size_t cmnd_len; /* [in]: number of bytes in SCSI command */
+ int dxfer_dir; /* [in]: DXFER_NONE, DXFER_FROM_DEVICE, or
+ DXFER_TO_DEVICE */
+ uint8_t * dxferp; /* [in]: ptr to outgoing or incoming data buffer */
+ size_t dxfer_len; /* [in]: bytes to be transferred to/from dxferp */
+ uint8_t * sensep; /* [in]: ptr to sense buffer, filled when
+ CHECK CONDITION status occurs */
+ size_t max_sense_len; /* [in]: max number of bytes to write to sensep */
+ unsigned timeout; /* [in]: seconds, 0-> default timeout (60 seconds?) */
+ size_t resp_sense_len; /* [out]: sense buffer length written */
+ uint8_t scsi_status; /* [out]: 0->ok, 2->CHECK CONDITION, etc ... */
+ int resid; /* [out]: Number of bytes requested to be transferred
+ less actual number transferred (0 if not
+ supported) */
+};
+
+struct scsi_sense_disect {
+ uint8_t resp_code;
+ uint8_t sense_key;
+ uint8_t asc;
+ uint8_t ascq;
+ int progress; /* -1 -> N/A, 0-65535 -> available */
+};
+
+/* Useful data from Informational Exception Control mode page (0x1c) */
+#define SCSI_IECMP_RAW_LEN 64
+struct scsi_iec_mode_page {
+ uint8_t requestedCurrent;
+ uint8_t gotCurrent;
+ uint8_t requestedChangeable;
+ uint8_t gotChangeable;
+ uint8_t modese_len; /* 0 (don't know), 6 or 10 */
+ uint8_t raw_curr[SCSI_IECMP_RAW_LEN];
+ uint8_t raw_chg[SCSI_IECMP_RAW_LEN];
+};
+
+/* Carrier for Error counter log pages (e.g. read, write, verify ...) */
+struct scsiErrorCounter {
+ uint8_t gotPC[7];
+ uint8_t gotExtraPC;
+ uint64_t counter[8];
+};
+
+/* Carrier for Non-medium error log page */
+struct scsiNonMediumError {
+ uint8_t gotPC0;
+ uint8_t gotExtraPC;
+ uint64_t counterPC0;
+ uint8_t gotTFE_H;
+ uint64_t counterTFE_H; /* Track following errors [Hitachi] */
+ uint8_t gotPE_H;
+ uint64_t counterPE_H; /* Positioning errors [Hitachi] */
+};
+
+struct scsi_readcap_resp {
+ uint64_t num_lblocks; /* Number of Logical Blocks on device */
+ uint32_t lb_size; /* should be available in all non-error cases */
+ /* following fields from READ CAPACITY(16) or set to 0 */
+ uint8_t prot_type; /* 0, 1, 2 or 3 protection type, deduced from
+ * READ CAPACITY(16) P_TYPE and PROT_EN fields */
+ uint8_t p_i_exp; /* Protection information Intervals Exponent */
+ uint8_t lb_p_pb_exp;/* Logical Blocks per Physical Block Exponent */
+ bool lbpme; /* Logical Block Provisioning Management Enabled */
+ bool lbprz; /* Logical Block Provisioning Read Zeros */
+ uint16_t l_a_lba; /* Lowest Aligned Logical Block Address */
+};
+
+struct scsi_supp_log_pages {
+ uint8_t page_code;
+ uint8_t subpage_code;
+};
+
+/* SCSI Peripheral types (of interest) */
+#define SCSI_PT_DIRECT_ACCESS 0x0
+#define SCSI_PT_SEQUENTIAL_ACCESS 0x1
+#define SCSI_PT_WO 0x4 /* write once device */
+#define SCSI_PT_CDROM 0x5
+#define SCSI_PT_OPTICAL 0x7
+#define SCSI_PT_MEDIUM_CHANGER 0x8
+#define SCSI_PT_ENCLOSURE 0xd
+#define SCSI_PT_RBC 0xe
+#define SCSI_PT_HOST_MANAGED 0x14 /* Zoned disk */
+
+/* Transport protocol identifiers or just Protocol identifiers */
+#define SCSI_TPROTO_FCP 0
+#define SCSI_TPROTO_SPI 1
+#define SCSI_TPROTO_SSA 2
+#define SCSI_TPROTO_1394 3
+#define SCSI_TPROTO_SRP 4 /* SCSI over RDMA */
+#define SCSI_TPROTO_ISCSI 5
+#define SCSI_TPROTO_SAS 6
+#define SCSI_TPROTO_ADT 7
+#define SCSI_TPROTO_ATA 8
+#define SCSI_TPROTO_UAS 9 /* USB attached SCSI */
+#define SCSI_TPROTO_SOP 0xa /* SCSI over PCIe */
+#define SCSI_TPROTO_PCIE 0xb /* includes NVMe */
+#define SCSI_TPROTO_NONE 0xf
+
+
+/* SCSI Log Pages retrieved by LOG SENSE. 0x0 to 0x3f, 0x30 to 0x3e vendor */
+#define SUPPORTED_LPAGES 0x00
+#define BUFFER_OVERRUN_LPAGE 0x01
+#define WRITE_ERROR_COUNTER_LPAGE 0x02
+#define READ_ERROR_COUNTER_LPAGE 0x03
+#define READ_REVERSE_ERROR_COUNTER_LPAGE 0x04
+#define VERIFY_ERROR_COUNTER_LPAGE 0x05
+#define NON_MEDIUM_ERROR_LPAGE 0x06
+#define LAST_N_ERROR_EVENTS_LPAGE 0x07
+#define FORMAT_STATUS_LPAGE 0x08
+#define LAST_N_DEFERRED_LPAGE 0x0b /* or async events */
+#define LB_PROV_LPAGE 0x0c /* SBC-3 */
+#define TEMPERATURE_LPAGE 0x0d
+#define STARTSTOP_CYCLE_COUNTER_LPAGE 0x0e
+#define APPLICATION_CLIENT_LPAGE 0x0f
+#define SELFTEST_RESULTS_LPAGE 0x10
+#define SS_MEDIA_LPAGE 0x11 /* SBC-3 */
+#define DEVICE_STATS_LPAGE 0x14 /* SSC-5 */
+#define BACKGROUND_RESULTS_LPAGE 0x15 /* SBC-3 */
+#define ATA_PT_RESULTS_LPAGE 0x16 /* SAT */
+#define NONVOL_CACHE_LPAGE 0x17 /* SBC-3 */
+#define PROTOCOL_SPECIFIC_LPAGE 0x18
+#define GEN_STATS_PERF_LPAGE 0x19
+#define POWER_COND_TRANS_LPAGE 0x1a
+#define IE_LPAGE 0x2f
+
+/* SCSI Log subpages (8 bits), added spc4r05 2006, standardized SPC-4 2015 */
+#define NO_SUBPAGE_L_SPAGE 0x0 /* 0x0-0x3f,0x0 */
+#define LAST_N_INQ_DAT_L_SPAGE 0x1 /* 0xb,0x1 */
+#define LAST_N_MODE_PG_L_SPAGE 0x2 /* 0xb,0x2 */
+#define ENVIRO_REP_L_SPAGE 0x1 /* 0xd,0x1 */
+#define ENVIRO_LIMITS_L_SPAGE 0x2 /* 0xd,0x2 */
+#define UTILIZATION_L_SPAGE 0x1 /* 0xe,0x1 */
+#define ZB_DEV_STATS_L_SPAGE 0x1 /* 0x14,0x1 */
+#define PEND_DEFECTS_L_SPAGE 0x1 /* 0x15,0x1 */
+#define BACKGROUND_OP_L_SPAGE 0x2 /* 0x15,0x2 */
+#define LPS_MISALIGN_L_SPAGE 0x3 /* 0x15,0x3 */
+#define SUPP_SPAGE_L_SPAGE 0xff /* 0x0,0xff pages+subpages */
+
+/* Seagate vendor specific log pages. */
+#define SEAGATE_CACHE_LPAGE 0x37
+#define SEAGATE_FARM_LPAGE 0x3d
+#define SEAGATE_FACTORY_LPAGE 0x3e
+
+/* Seagate vendor specific log sub-pages. */
+#define SEAGATE_FARM_CURRENT_L_SPAGE 0x3 /* 0x3d,0x3 */
+
+/* Log page response lengths */
+#define LOG_RESP_SELF_TEST_LEN 0x194
+
+/* See the SSC-2 document at www.t10.org . Earlier note: From IBM
+Documentation, see http://www.storage.ibm.com/techsup/hddtech/prodspecs.htm */
+#define TAPE_ALERTS_LPAGE 0x2e
+
+/* ANSI SCSI-3 Mode Pages */
+#define VENDOR_UNIQUE_PAGE 0x00
+#define READ_WRITE_ERROR_RECOVERY_PAGE 0x01
+#define DISCONNECT_RECONNECT_PAGE 0x02
+#define FORMAT_DEVICE_PAGE 0x03
+#define RIGID_DISK_DRIVE_GEOMETRY_PAGE 0x04
+#define FLEXIBLE_DISK_PAGE 0x05
+#define VERIFY_ERROR_RECOVERY_PAGE 0x07
+#define CACHING_PAGE 0x08
+#define PERIPHERAL_DEVICE_PAGE 0x09
+#define XOR_CONTROL_MODE_PAGE 0x10
+#define CONTROL_MODE_PAGE 0x0a
+#define MEDIUM_TYPES_SUPPORTED_PAGE 0x0b
+#define NOTCH_PAGE 0x0c
+#define CD_DEVICE_PAGE 0x0d
+#define CD_AUDIO_CONTROL_PAGE 0x0e
+#define DATA_COMPRESSION_PAGE 0x0f
+#define ENCLOSURE_SERVICES_MANAGEMENT_PAGE 0x14
+#define PROTOCOL_SPECIFIC_LUN_PAGE 0x18
+#define PROTOCOL_SPECIFIC_PORT_PAGE 0x19
+#define POWER_CONDITION_PAGE 0x1a
+#define INFORMATIONAL_EXCEPTIONS_CONTROL_PAGE 0x1c
+#define FAULT_FAILURE_REPORTING_PAGE 0x1c
+
+/* Background control mode subpage is [0x1c,0x1] */
+#define BACKGROUND_CONTROL_M_SUBPAGE 0x1 /* SBC-2 */
+
+#define ALL_MODE_PAGES 0x3f
+
+/* Mode page control field */
+#define MPAGE_CONTROL_CURRENT 0
+#define MPAGE_CONTROL_CHANGEABLE 1
+#define MPAGE_CONTROL_DEFAULT 2
+#define MPAGE_CONTROL_SAVED 3
+
+/* SCSI Vital Product Data (VPD) pages */
+#define SCSI_VPD_SUPPORTED_VPD_PAGES 0x0
+#define SCSI_VPD_UNIT_SERIAL_NUMBER 0x80
+#define SCSI_VPD_DEVICE_IDENTIFICATION 0x83
+#define SCSI_VPD_EXTENDED_INQUIRY_DATA 0x86
+#define SCSI_VPD_ATA_INFORMATION 0x89
+#define SCSI_VPD_POWER_CONDITION 0x8a
+#define SCSI_VPD_POWER_CONSUMPTION 0x8d
+#define SCSI_VPD_BLOCK_LIMITS 0xb0
+#define SCSI_VPD_BLOCK_DEVICE_CHARACTERISTICS 0xb1
+#define SCSI_VPD_LOGICAL_BLOCK_PROVISIONING 0xb2
+#define SCSI_VPD_ZONED_BLOCK_DEV_CHAR 0xb6
+
+/* defines for useful SCSI Status codes */
+#define SCSI_STATUS_CHECK_CONDITION 0x2
+
+/* defines for useful Sense Key codes */
+#define SCSI_SK_NO_SENSE 0x0
+#define SCSI_SK_RECOVERED_ERR 0x1
+#define SCSI_SK_NOT_READY 0x2
+#define SCSI_SK_MEDIUM_ERROR 0x3
+#define SCSI_SK_HARDWARE_ERROR 0x4
+#define SCSI_SK_ILLEGAL_REQUEST 0x5
+#define SCSI_SK_UNIT_ATTENTION 0x6
+#define SCSI_SK_DATA_PROTECT 0x7
+#define SCSI_SK_ABORTED_COMMAND 0xb
+#define SCSI_SK_MISCOMPARE 0xe
+#define SCSI_SK_COMPLETED 0xf
+
+/* defines for useful Additional Sense Codes (ASCs) */
+#define SCSI_ASC_NOT_READY 0x4 /* more info in ASCQ code */
+#define SCSI_ASC_NO_MEDIUM 0x3a /* more info in ASCQ code */
+#define SCSI_ASC_UNKNOWN_OPCODE 0x20
+#define SCSI_ASC_INVALID_FIELD 0x24
+#define SCSI_ASC_UNKNOWN_PARAM 0x26
+#define SCSI_ASC_WARNING 0xb
+#define SCSI_ASC_IMPENDING_FAILURE 0x5d
+
+#define SCSI_ASCQ_ATA_PASS_THROUGH 0x1d
+
+/* Simplified error code (negative values as per errno) */
+#define SIMPLE_NO_ERROR 0
+#define SIMPLE_ERR_NOT_READY 1
+#define SIMPLE_ERR_BAD_OPCODE 2
+#define SIMPLE_ERR_BAD_FIELD 3 /* in cbd */
+#define SIMPLE_ERR_BAD_PARAM 4 /* in data */
+#define SIMPLE_ERR_BAD_RESP 5 /* response fails sanity */
+#define SIMPLE_ERR_NO_MEDIUM 6 /* no medium present */
+#define SIMPLE_ERR_BECOMING_READY 7 /* device will be ready soon */
+#define SIMPLE_ERR_TRY_AGAIN 8 /* some warning, try again */
+#define SIMPLE_ERR_MEDIUM_HARDWARE 9 /* medium or hardware error */
+#define SIMPLE_ERR_UNKNOWN 10 /* unknown sense value */
+#define SIMPLE_ERR_ABORTED_COMMAND 11 /* probably transport error */
+#define SIMPLE_ERR_PROTECTION 12 /* data protect sense key */
+#define SIMPLE_ERR_MISCOMPARE 13 /* from VERIFY commands */
+
+
+/* defines for functioncode parameter in SENDDIAGNOSTIC function */
+#define SCSI_DIAG_NO_SELF_TEST 0x00
+#define SCSI_DIAG_DEF_SELF_TEST 0xff
+#define SCSI_DIAG_BG_SHORT_SELF_TEST 0x01
+#define SCSI_DIAG_BG_EXTENDED_SELF_TEST 0x02
+#define SCSI_DIAG_FG_SHORT_SELF_TEST 0x05
+#define SCSI_DIAG_FG_EXTENDED_SELF_TEST 0x06
+#define SCSI_DIAG_ABORT_SELF_TEST 0x04
+
+/* Defines for power_cond in scsiSetPowerCondition() (SSU command) */
+#define SCSI_POW_COND_ACTIVE 0x1
+#define SCSI_POW_COND_IDLE 0x2
+#define SCSI_POW_COND_STANDBY 0x3
+
+
+/* SCSI command timeout values (units are seconds) */
+#define SCSI_TIMEOUT_DEFAULT 60 // should be longer than the spin up time
+ // of a disk in JBOD.
+
+#define SCSI_TIMEOUT_SELF_TEST (5 * 60 * 60) /* allow max 5 hours for */
+ /* extended foreground self test */
+
+#define LOGPAGEHDRSIZE 4
+
+class scsi_device;
+
+// Set of supported SCSI VPD pages. Constructor fetches Supported VPD pages
+// VPD page and remembers the response for later queries.
+class supported_vpd_pages
+{
+public:
+ explicit supported_vpd_pages(scsi_device * device);
+
+ bool is_supported(int vpd_page_num) const;
+
+private:
+ int num_valid; /* 0 or less for invalid */
+ unsigned char pages[256];
+};
+
+extern supported_vpd_pages * supported_vpd_pages_p;
+
+/* This is a heuristic that takes into account the command bytes and length
+ * to decide whether the presented unstructured sequence of bytes could be
+ * a SCSI command. If so it returns true otherwise false. Vendor specific
+ * SCSI commands (i.e. opcodes from 0xc0 to 0xff), if presented, are assumed
+ * to follow SCSI conventions (i.e. length of 6, 10, 12 or 16 bytes). The
+ * only SCSI commands considered above 16 bytes of length are the Variable
+ * Length Commands (opcode 0x7f) and the XCDB wrapped commands (opcode 0x7e).
+ * Both have an inbuilt length field which can be cross checked with clen.
+ * No NVMe commands (64 bytes long plus some extra added by some OSes) have
+ * opcodes 0x7e or 0x7f yet. ATA is register based but SATA has FIS
+ * structures that are sent across the wire. The FIS register structure is
+ * used to move a command from a SATA host to device, but the ATA 'command'
+ * is not the first byte. So it is harder to say what will happen if a
+ * FIS structure is presented as a SCSI command, hopefully there is a low
+ * probability this function will yield true in that case. */
+bool is_scsi_cdb(const uint8_t * cdbp, int clen);
+
+// Print SCSI debug messages?
+extern unsigned char scsi_debugmode;
+
+void scsi_do_sense_disect(const struct scsi_cmnd_io * in,
+ struct scsi_sense_disect * out);
+
+int scsiSimpleSenseFilter(const struct scsi_sense_disect * sinfo);
+
+const char * scsiErrString(int scsiErr);
+
+/* Yield string associated with sense_key value. Returns 'buff'. */
+char * scsi_get_sense_key_str(int sense_key, int buff_len, char * buff);
+
+int scsi_vpd_dev_id_iter(const unsigned char * initial_desig_desc,
+ int page_len, int * off, int m_assoc,
+ int m_desig_type, int m_code_set);
+
+int scsi_decode_lu_dev_id(const unsigned char * b, int blen, char * s,
+ int slen, int * transport);
+
+
+/* STANDARD SCSI Commands */
+int scsiTestUnitReady(scsi_device * device);
+
+int scsiStdInquiry(scsi_device * device, uint8_t *pBuf, int bufLen);
+
+int scsiInquiryVpd(scsi_device * device, int vpd_page, uint8_t *pBuf,
+ int bufLen);
+
+int scsiLogSense(scsi_device * device, int pagenum, int subpagenum,
+ uint8_t *pBuf, int bufLen, int known_resp_len);
+
+int scsiLogSelect(scsi_device * device, int pcr, int sp, int pc, int pagenum,
+ int subpagenum, uint8_t *pBuf, int bufLen);
+
+int scsiModeSense(scsi_device * device, int pagenum, int subpagenum, int pc,
+ uint8_t *pBuf, int bufLen);
+
+int scsiModeSelect(scsi_device * device, int sp, uint8_t *pBuf, int bufLen);
+
+int scsiModeSense10(scsi_device * device, int pagenum, int subpagenum, int pc,
+ uint8_t *pBuf, int bufLen);
+
+int scsiModeSelect10(scsi_device * device, int sp, uint8_t *pBuf, int bufLen);
+
+int scsiModePageOffset(const uint8_t * resp, int len, int modese_len);
+
+int scsiRequestSense(scsi_device * device,
+ struct scsi_sense_disect * sense_info);
+
+int scsiSetPowerCondition(scsi_device * device, int power_cond,
+ int pcond_modifier = 0);
+
+int scsiSendDiagnostic(scsi_device * device, int functioncode, uint8_t *pBuf,
+ int bufLen);
+
+bool scsi_pass_through_yield_sense(scsi_device * device, scsi_cmnd_io * iop,
+ struct scsi_sense_disect & sinfo);
+
+int scsiReadDefect10(scsi_device * device, int req_plist, int req_glist,
+ int dl_format, uint8_t *pBuf, int bufLen);
+
+int scsiReadDefect12(scsi_device * device, int req_plist, int req_glist,
+ int dl_format, int addrDescIndex, uint8_t *pBuf,
+ int bufLen);
+
+int scsiReadCapacity10(scsi_device * device, unsigned int * last_lbp,
+ unsigned int * lb_sizep);
+
+int scsiReadCapacity16(scsi_device * device, uint8_t *pBuf, int bufLen);
+
+int scsiRSOCcmd(scsi_device * device, bool rctd, uint8_t rep_opt,
+ uint8_t opcode, uint16_t serv_act, uint8_t *pBuf, int bufLen,
+ int & rspLen);
+
+/* SMART specific commands */
+int scsiCheckIE(scsi_device * device, int hasIELogPage, int hasTempLogPage,
+ uint8_t *asc, uint8_t *ascq, uint8_t *currenttemp,
+ uint8_t *triptemp);
+
+int scsiFetchIECmpage(scsi_device * device, struct scsi_iec_mode_page *iecp,
+ int modese_len);
+int scsi_IsExceptionControlEnabled(const struct scsi_iec_mode_page *iecp);
+int scsi_IsWarningEnabled(const struct scsi_iec_mode_page *iecp);
+int scsiSetExceptionControlAndWarning(scsi_device * device, int enabled,
+ const struct scsi_iec_mode_page *iecp);
+void scsiDecodeErrCounterPage(unsigned char * resp,
+ struct scsiErrorCounter *ecp,
+ int allocLen);
+void scsiDecodeNonMediumErrPage(unsigned char * resp,
+ struct scsiNonMediumError *nmep,
+ int allocLen);
+int scsiFetchExtendedSelfTestTime(scsi_device * device, int * durationSec,
+ int modese_len);
+int scsiCountFailedSelfTests(scsi_device * device, int noisy);
+int scsiSelfTestInProgress(scsi_device * device, int * inProgress);
+int scsiFetchControlGLTSD(scsi_device * device, int modese_len, int current);
+int scsiSetControlGLTSD(scsi_device * device, int enabled, int modese_len);
+int scsiFetchTransportProtocol(scsi_device * device, int modese_len);
+int scsiGetRPM(scsi_device * device, int modese_len, int * form_factorp,
+ int * haw_zbcp);
+int scsiGetSetCache(scsi_device * device, int modese_len, short int * wce,
+ short int * rcd);
+uint64_t scsiGetSize(scsi_device * device, bool avoid_rcap16,
+ struct scsi_readcap_resp * srrp);
+
+/* T10 Standard IE Additional Sense Code strings taken from t10.org */
+char * scsiGetIEString(uint8_t asc, uint8_t ascq, char * b, int blen);
+int scsiGetTemp(scsi_device * device, uint8_t *currenttemp, uint8_t *triptemp);
+
+
+int scsiSmartDefaultSelfTest(scsi_device * device);
+int scsiSmartShortSelfTest(scsi_device * device);
+int scsiSmartExtendSelfTest(scsi_device * device);
+int scsiSmartShortCapSelfTest(scsi_device * device);
+int scsiSmartExtendCapSelfTest(scsi_device * device);
+int scsiSmartSelfTestAbort(scsi_device * device);
+
+const char * scsiTapeAlertsTapeDevice(unsigned short code);
+const char * scsiTapeAlertsChangerDevice(unsigned short code);
+
+const char * scsi_get_opcode_name(const uint8_t * cdbp);
+void scsi_format_id_string(char * out, const uint8_t * in, int n);
+
+/* Read binary starting at 'up' for 'len' bytes and output as ASCII
+ * hexadecimal into pout(). 16 bytes per line are output with an
+ * additional space between 8th and 9th byte on each line (for readability).
+ * 'no_ascii' selects one of 3 output format types:
+ * > 0 each line has address then up to 16 ASCII-hex bytes
+ * = 0 in addition, the bytes are rendered in ASCII to the right
+ * of each line, non-printable characters shown as '.'
+ * < 0 only the ASCII-hex bytes are listed (i.e. without address) */
+void dStrHex(const uint8_t * up, int len, int no_ascii);
+
+/* Read binary starting at 'up' for 'len' bytes and output as ASCII
+ * hexadecimal into FILE pointer (fp). If fp is nullptr, then send to
+ * pout(). Note that 'stdout' and 'stderr' can be given for 'fp'.
+ * See dStrHex() above for more information. */
+void dStrHexFp(const uint8_t * up, int len, int no_ascii, FILE * fp);
+
+/* Attempt to find the first SCSI sense data descriptor that matches the
+ * given 'desc_type'. If found return pointer to start of sense data
+ * descriptor; otherwise (including fixed format sense data) returns
+ * nullptr. */
+const unsigned char * sg_scsi_sense_desc_find(const unsigned char * sensep,
+ int sense_len, int desc_type);
+
+
+/* SCSI command transmission interface function declaration. Its
+ * definition is target OS specific (see os_<OS>.c file).
+ * Returns 0 if SCSI command successfully launched and response
+ * received. Even when 0 is returned the caller should check
+ * scsi_cmnd_io::scsi_status for SCSI defined errors and warnings
+ * (e.g. CHECK CONDITION). If the SCSI command could not be issued
+ * (e.g. device not present or not a SCSI device) or some other problem
+ * arises (e.g. timeout) then returns a negative errno value. */
+// Moved to C++ interface
+//int do_scsi_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report);
+
+
+
+#endif