let you access SCSI modes pages, read VPD pages, send simple SCSI commands (similar functionality for SCSI disks like "hdparm" for ATA disks).
| sg_cmds_basic2.c (sdparm-1.11.tgz) | : | sg_cmds_basic2.c (sdparm-1.12.tgz) |
|---|
| /* | | /* |
|
| * Copyright (c) 1999-2019 Douglas Gilbert. | | * Copyright (c) 1999-2020 Douglas Gilbert. |
| * All rights reserved. | | * All rights reserved. |
| * Use of this source code is governed by a BSD-style | | * Use of this source code is governed by a BSD-style |
| * license that can be found in the BSD_LICENSE file. | | * license that can be found in the BSD_LICENSE file. |
| * | | * |
| * SPDX-License-Identifier: BSD-2-Clause | | * SPDX-License-Identifier: BSD-2-Clause |
| */ | | */ |
| | |
| /* | | /* |
| * CONTENTS | | * CONTENTS |
| * Some SCSI commands are executed in many contexts and hence began | | * Some SCSI commands are executed in many contexts and hence began |
| | |
| skipping to change at line 927 | | skipping to change at line 927 |
|---|
| ret = sense_cat; | | ret = sense_cat; |
| break; | | break; |
| } | | } |
| } else | | } else |
| ret = 0; | | ret = 0; |
| | |
| destruct_scsi_pt_obj(ptvp); | | destruct_scsi_pt_obj(ptvp); |
| return ret; | | return ret; |
| } | | } |
| | |
|
| int | | |
| sg_ll_start_stop_unit(int sg_fd, bool immed, int pc_mod__fl_num, | | |
| int power_cond, bool noflush__fl, bool loej, bool start, | | |
| bool noisy, int verbose) | | |
| { | | |
| int ret; | | |
| struct sg_pt_base * ptvp; | | |
| | |
| ptvp = construct_scsi_pt_obj_with_fd(sg_fd, verbose); | | |
| if (NULL == ptvp) | | |
| return sg_convert_errno(ENOMEM); | | |
| ret = sg_ll_start_stop_unit_pt(ptvp, immed, pc_mod__fl_num, power_cond, | | |
| noflush__fl, loej, start, noisy, verbose); | | |
| destruct_scsi_pt_obj(ptvp); | | |
| return ret; | | |
| } | | |
| | | |
| /* Invokes a SCSI START STOP UNIT command (SBC + MMC). | | /* Invokes a SCSI START STOP UNIT command (SBC + MMC). |
| * Return of 0 -> success, | | * Return of 0 -> success, |
| * various SG_LIB_CAT_* positive values or -1 -> other errors. | | * various SG_LIB_CAT_* positive values or -1 -> other errors. |
| * SBC-3 and MMC partially overlap on the power_condition_modifier(sbc) and | | * SBC-3 and MMC partially overlap on the power_condition_modifier(sbc) and |
| * format_layer_number(mmc) fields. They also overlap on the noflush(sbc) | | * format_layer_number(mmc) fields. They also overlap on the noflush(sbc) |
| * and fl(mmc) one bit field. This is the cause of the awkardly named | | * and fl(mmc) one bit field. This is the cause of the awkardly named |
| * pc_mod__fl_num and noflush__fl arguments to this function. | | * pc_mod__fl_num and noflush__fl arguments to this function. |
| * */ | | * */ |
|
| int | | static int |
| sg_ll_start_stop_unit_pt(struct sg_pt_base * ptvp, bool immed, | | sg_ll_start_stop_unit_com(struct sg_pt_base * ptvp, int sg_fd, bool immed, |
| int pc_mod__fl_num, int power_cond, bool noflush__fl, | | int pc_mod__fl_num, int power_cond, bool noflush__fl, |
| bool loej, bool start, bool noisy, int verbose) | | bool loej, bool start, bool noisy, int verbose) |
| { | | { |
| static const char * const cdb_s = "start stop unit"; | | static const char * const cdb_s = "start stop unit"; |
|
| | bool ptvp_given = false; |
| | bool local_sense = true; |
| | bool local_cdb = true; |
| int res, ret, sense_cat; | | int res, ret, sense_cat; |
| uint8_t ssuBlk[START_STOP_CMDLEN] = {START_STOP_CMD, 0, 0, 0, 0, 0}; | | uint8_t ssuBlk[START_STOP_CMDLEN] = {START_STOP_CMD, 0, 0, 0, 0, 0}; |
| uint8_t sense_b[SENSE_BUFF_LEN]; | | uint8_t sense_b[SENSE_BUFF_LEN]; |
| | |
| if (immed) | | if (immed) |
| ssuBlk[1] = 0x1; | | ssuBlk[1] = 0x1; |
| ssuBlk[3] = pc_mod__fl_num & 0xf; /* bits 2 and 3 are reserved in MMC */ | | ssuBlk[3] = pc_mod__fl_num & 0xf; /* bits 2 and 3 are reserved in MMC */ |
| ssuBlk[4] = ((power_cond & 0xf) << 4); | | ssuBlk[4] = ((power_cond & 0xf) << 4); |
| if (noflush__fl) | | if (noflush__fl) |
| ssuBlk[4] |= 0x4; | | ssuBlk[4] |= 0x4; |
| | |
| skipping to change at line 979 | | skipping to change at line 965 |
|---|
| ssuBlk[4] |= 0x2; | | ssuBlk[4] |= 0x2; |
| if (start) | | if (start) |
| ssuBlk[4] |= 0x1; | | ssuBlk[4] |= 0x1; |
| if (verbose) { | | if (verbose) { |
| char b[128]; | | char b[128]; |
| | |
| pr2ws(" %s cdb: %s\n", cdb_s, | | pr2ws(" %s cdb: %s\n", cdb_s, |
| sg_get_command_str(ssuBlk, sizeof(ssuBlk), false, | | sg_get_command_str(ssuBlk, sizeof(ssuBlk), false, |
| sizeof(b), b)); | | sizeof(b), b)); |
| } | | } |
|
| | | if (ptvp) { |
| clear_scsi_pt_obj(ptvp); | | ptvp_given = true; |
| set_scsi_pt_cdb(ptvp, ssuBlk, sizeof(ssuBlk)); | | partial_clear_scsi_pt_obj(ptvp); |
| set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); | | if (get_scsi_pt_cdb_buf(ptvp)) |
| | local_cdb = false; /* N.B. Ignores locally built cdb */ |
| | else |
| | set_scsi_pt_cdb(ptvp, ssuBlk, sizeof(ssuBlk)); |
| | if (get_scsi_pt_sense_buf(ptvp)) |
| | local_sense = false; |
| | else |
| | set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| | } else { |
| | ptvp = construct_scsi_pt_obj_with_fd(sg_fd, verbose); |
| | if (NULL == ptvp) |
| | return sg_convert_errno(ENOMEM); |
| | set_scsi_pt_cdb(ptvp, ssuBlk, sizeof(ssuBlk)); |
| | set_scsi_pt_sense(ptvp, sense_b, sizeof(sense_b)); |
| | } |
| res = do_scsi_pt(ptvp, -1, START_PT_TIMEOUT, verbose); | | res = do_scsi_pt(ptvp, -1, START_PT_TIMEOUT, verbose); |
| ret = sg_cmds_process_resp(ptvp, cdb_s, res, noisy, verbose, &sense_cat); | | ret = sg_cmds_process_resp(ptvp, cdb_s, res, noisy, verbose, &sense_cat); |
| if (-1 == ret) | | if (-1 == ret) |
| ret = sg_convert_errno(get_scsi_pt_os_err(ptvp)); | | ret = sg_convert_errno(get_scsi_pt_os_err(ptvp)); |
| else if (-2 == ret) { | | else if (-2 == ret) { |
| switch (sense_cat) { | | switch (sense_cat) { |
| case SG_LIB_CAT_RECOVERED: | | case SG_LIB_CAT_RECOVERED: |
| case SG_LIB_CAT_NO_SENSE: | | case SG_LIB_CAT_NO_SENSE: |
| ret = 0; | | ret = 0; |
| break; | | break; |
| default: | | default: |
| ret = sense_cat; | | ret = sense_cat; |
| break; | | break; |
| } | | } |
| } else | | } else |
| ret = 0; | | ret = 0; |
|
| | if (ptvp_given) { |
| | if (local_sense) /* stop caller trying to access local sense */ |
| | set_scsi_pt_sense(ptvp, NULL, 0); |
| | if (local_cdb) |
| | set_scsi_pt_cdb(ptvp, NULL, 0); |
| | } else { |
| | if (ptvp) |
| | destruct_scsi_pt_obj(ptvp); |
| | } |
| return ret; | | return ret; |
| } | | } |
| | |
|
| | int |
| | sg_ll_start_stop_unit(int sg_fd, bool immed, int pc_mod__fl_num, |
| | int power_cond, bool noflush__fl, bool loej, bool start, |
| | bool noisy, int verbose) |
| | { |
| | return sg_ll_start_stop_unit_com(NULL, sg_fd, immed, pc_mod__fl_num, |
| | power_cond, noflush__fl, loej, start, |
| | noisy, verbose); |
| | } |
| | |
| | int |
| | sg_ll_start_stop_unit_pt(struct sg_pt_base * ptvp, bool immed, |
| | int pc_mod__fl_num, int power_cond, bool noflush__fl, |
| | bool loej, bool start, bool noisy, int verbose) |
| | { |
| | return sg_ll_start_stop_unit_com(ptvp, -1, immed, pc_mod__fl_num, |
| | power_cond, noflush__fl, loej, start, |
| | noisy, verbose); |
| | } |
| | |
| /* Invokes a SCSI PREVENT ALLOW MEDIUM REMOVAL command | | /* Invokes a SCSI PREVENT ALLOW MEDIUM REMOVAL command |
| * [was in SPC-3 but displaced from SPC-4 into SBC-3, MMC-5, SSC-3] | | * [was in SPC-3 but displaced from SPC-4 into SBC-3, MMC-5, SSC-3] |
| * prevent==0 allows removal, prevent==1 prevents removal ... | | * prevent==0 allows removal, prevent==1 prevents removal ... |
| * Return of 0 -> success, | | * Return of 0 -> success, |
| * various SG_LIB_CAT_* positive values or -1 -> other errors */ | | * various SG_LIB_CAT_* positive values or -1 -> other errors */ |
| int | | int |
| sg_ll_prevent_allow(int sg_fd, int prevent, bool noisy, int verbose) | | sg_ll_prevent_allow(int sg_fd, int prevent, bool noisy, int verbose) |
| { | | { |
| static const char * const cdb_s = "prevent allow medium removal"; | | static const char * const cdb_s = "prevent allow medium removal"; |
| int res, ret, sense_cat; | | int res, ret, sense_cat; |
| | | |
| End of changes. 7 change blocks. |
|---|
| 26 lines changed or deleted | | 55 lines changed or added |
|---|
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