| /* |
| * Copyright (c) 2009-2020 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 <stdio.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <stdbool.h> |
| #include <string.h> |
| #include <ctype.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_unaligned.h" |
| #include "sg_pr2serr.h" |
| #include "sg_pr2serr.h" |
| |
| #if (HAVE_NVME && (! IGNORE_NVME)) |
| #include "sg_pt_nvme.h" |
| #endif |
| |
| static const char * scsi_pt_version_str = "3.16 20200722"; |
| |
| |
| const char * |
| scsi_pt_version() |
| { |
| return scsi_pt_version_str; |
| } |
| |
| const char * |
| sg_pt_version() |
| { |
| return scsi_pt_version_str; |
| } |
| |
| |
| #if (HAVE_NVME && (! IGNORE_NVME)) |
| /* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ */ |
| |
| #define SAVING_PARAMS_UNSUP 0x39 |
| #define INVALID_FIELD_IN_CDB 0x24 |
| #define INVALID_FIELD_IN_PARAM_LIST 0x26 |
| #define PARAMETER_LIST_LENGTH_ERR 0x1a |
| |
| static const char * nvme_scsi_vendor_str = "NVMe "; |
| |
| |
| #define F_SA_LOW 0x80 /* cdb byte 1, bits 4 to 0 */ |
| #define F_SA_HIGH 0x100 /* as used by variable length cdbs */ |
| #define FF_SA (F_SA_HIGH | F_SA_LOW) |
| #define F_INV_OP 0x200 |
| |
| /* Table of SCSI operation code (opcodes) supported by SNTL */ |
| static struct sg_opcode_info_t sg_opcode_info_arr[] = |
| { |
| {0x0, 0, 0, {6, /* TEST UNIT READY */ |
| 0, 0, 0, 0, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, |
| {0x3, 0, 0, {6, /* REQUEST SENSE */ |
| 0xe1, 0, 0, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, |
| {0x12, 0, 0, {6, /* INQUIRY */ |
| 0xe3, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, |
| {0x1b, 0, 0, {6, /* START STOP UNIT */ |
| 0x1, 0, 0xf, 0xf7, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, |
| {0x1c, 0, 0, {6, /* RECEIVE DIAGNOSTIC RESULTS */ |
| 0x1, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, |
| {0x1d, 0, 0, {6, /* SEND DIAGNOSTIC */ |
| 0xf7, 0x0, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, |
| {0x25, 0, 0, {10, /* READ CAPACITY(10) */ |
| 0x1, 0xff, 0xff, 0xff, 0xff, 0, 0, 0x1, 0xc7, 0, 0, 0, 0, 0, 0} }, |
| {0x28, 0, 0, {10, /* READ(10) */ |
| 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0, 0, 0, |
| 0, 0} }, |
| {0x2a, 0, 0, {10, /* WRITE(10) */ |
| 0xfb, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0, 0, 0, |
| 0, 0} }, |
| {0x2f, 0, 0, {10, /* VERIFY(10) */ |
| 0xf6, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0, 0, 0, |
| 0, 0} }, |
| {0x35, 0, 0, {10, /* SYNCHRONIZE CACHE(10) */ |
| 0x7, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0, 0, 0, |
| 0, 0} }, |
| {0x41, 0, 0, {10, /* WRITE SAME(10) */ |
| 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0, 0, 0, |
| 0, 0} }, |
| {0x55, 0, 0, {10, /* MODE SELECT(10) */ |
| 0x13, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0} }, |
| {0x5a, 0, 0, {10, /* MODE SENSE(10) */ |
| 0x18, 0xff, 0xff, 0x0, 0x0, 0x0, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0} }, |
| {0x88, 0, 0, {16, /* READ(16) */ |
| 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0xff, 0xc7} }, |
| {0x8a, 0, 0, {16, /* WRITE(16) */ |
| 0xfb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0xff, 0xc7} }, |
| {0x8f, 0, 0, {16, /* VERIFY(16) */ |
| 0xf6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0x3f, 0xc7} }, |
| {0x91, 0, 0, {16, /* SYNCHRONIZE CACHE(16) */ |
| 0x7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0x3f, 0xc7} }, |
| {0x93, 0, 0, {16, /* WRITE SAME(16) */ |
| 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0x3f, 0xc7} }, |
| {0x9e, 0x10, F_SA_LOW, {16, /* READ CAPACITY(16) [service action in] */ |
| 0x10, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0x1, 0xc7} }, |
| {0xa0, 0, 0, {12, /* REPORT LUNS */ |
| 0xe3, 0xff, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0, 0xc7, 0, 0, 0, 0} }, |
| {0xa3, 0xc, F_SA_LOW, {12, /* REPORT SUPPORTED OPERATION CODES */ |
| 0xc, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0xc7, 0, 0, 0, |
| 0} }, |
| {0xa3, 0xd, F_SA_LOW, {12, /* REPORT SUPPORTED TASK MAN. FUNCTIONS */ |
| 0xd, 0x80, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0, 0xc7, 0, 0, 0, 0} }, |
| |
| {0xff, 0xffff, 0xffff, {0, /* Sentinel, keep as last element */ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, |
| }; |
| |
| /* Returns pointer to array of struct sg_opcode_info_t of SCSI commands |
| * translated to NVMe. */ |
| const struct sg_opcode_info_t * |
| sg_get_opcode_translation(void) |
| { |
| return sg_opcode_info_arr; |
| } |
| |
| /* Given the NVMe Identify controller response and optionally the NVMe |
| * Identify namespace response (NULL otherwise), generate the SCSI VPD |
| * page 0x83 (device identification) descriptor(s) in dop. Return the |
| * number of bytes written which will not exceed max_do_len. Probably use |
| * Peripheral Device Type (pdt) of 0 (disk) for don't know. Transport |
| * protocol (tproto) should be -1 if not known, else SCSI value. |
| * N.B. Does not write total VPD page length into dop[2:3] . */ |
| int |
| sg_make_vpd_devid_for_nvme(const uint8_t * nvme_id_ctl_p, |
| const uint8_t * nvme_id_ns_p, int pdt, |
| int tproto, uint8_t * dop, int max_do_len) |
| { |
| bool have_nguid, have_eui64; |
| int k, n; |
| char b[4]; |
| |
| if ((NULL == nvme_id_ctl_p) || (NULL == dop) || (max_do_len < 56)) |
| return 0; |
| |
| memset(dop, 0, max_do_len); |
| dop[0] = 0x1f & pdt; /* (PQ=0)<<5 | (PDT=pdt); 0 or 0xd (SES) */ |
| dop[1] = 0x83; /* Device Identification VPD page number */ |
| /* Build a T10 Vendor ID based designator (desig_id=1) for controller */ |
| if (tproto >= 0) { |
| dop[4] = ((0xf & tproto) << 4) | 0x2; |
| dop[5] = 0xa1; /* PIV=1, ASSOC=2 (target device), desig_id=1 */ |
| } else { |
| dop[4] = 0x2; /* Prococol id=0, code_set=2 (ASCII) */ |
| dop[5] = 0x21; /* PIV=0, ASSOC=2 (target device), desig_id=1 */ |
| } |
| memcpy(dop + 8, nvme_scsi_vendor_str, 8); /* N.B. this is "NVMe " */ |
| memcpy(dop + 16, nvme_id_ctl_p + 24, 40); /* MN */ |
| for (k = 40; k > 0; --k) { |
| if (' ' == dop[15 + k]) |
| dop[15 + k] = '_'; /* convert trailing spaces */ |
| else |
| break; |
| } |
| if (40 == k) |
| --k; |
| n = 16 + 1 + k; |
| if (max_do_len < (n + 20)) |
| return 0; |
| memcpy(dop + n, nvme_id_ctl_p + 4, 20); /* SN */ |
| for (k = 20; k > 0; --k) { /* trim trailing spaces */ |
| if (' ' == dop[n + k - 1]) |
| dop[n + k - 1] = '\0'; |
| else |
| break; |
| } |
| n += k; |
| if (0 != (n % 4)) |
| n = ((n / 4) + 1) * 4; /* round up to next modulo 4 */ |
| dop[7] = n - 8; |
| if (NULL == nvme_id_ns_p) |
| return n; |
| |
| /* Look for NGUID (16 byte identifier) or EUI64 (8 byte) fields in |
| * NVME Identify for namespace. If found form a EUI and a SCSI string |
| * descriptor for non-zero NGUID or EUI64 (prefer NGUID if both). */ |
| have_nguid = ! sg_all_zeros(nvme_id_ns_p + 104, 16); |
| have_eui64 = ! sg_all_zeros(nvme_id_ns_p + 120, 8); |
| if ((! have_nguid) && (! have_eui64)) |
| return n; |
| if (have_nguid) { |
| if (max_do_len < (n + 20)) |
| return n; |
| dop[n + 0] = 0x1; /* Prococol id=0, code_set=1 (binary) */ |
| dop[n + 1] = 0x02; /* PIV=0, ASSOC=0 (lu), desig_id=2 (eui) */ |
| dop[n + 3] = 16; |
| memcpy(dop + n + 4, nvme_id_ns_p + 104, 16); |
| n += 20; |
| if (max_do_len < (n + 40)) |
| return n; |
| dop[n + 0] = 0x3; /* Prococol id=0, code_set=3 (utf8) */ |
| dop[n + 1] = 0x08; /* PIV=0, ASSOC=0 (lu), desig_id=8 (scsi string) */ |
| dop[n + 3] = 36; |
| memcpy(dop + n + 4, "eui.", 4); |
| for (k = 0; k < 16; ++k) { |
| snprintf(b, sizeof(b), "%02X", nvme_id_ns_p[104 + k]); |
| memcpy(dop + n + 8 + (2 * k), b, 2); |
| } |
| return n + 40; |
| } else { /* have_eui64 is true, 8 byte identifier */ |
| if (max_do_len < (n + 12)) |
| return n; |
| dop[n + 0] = 0x1; /* Prococol id=0, code_set=1 (binary) */ |
| dop[n + 1] = 0x02; /* PIV=0, ASSOC=0 (lu), desig_id=2 (eui) */ |
| dop[n + 3] = 8; |
| memcpy(dop + n + 4, nvme_id_ns_p + 120, 8); |
| n += 12; |
| if (max_do_len < (n + 24)) |
| return n; |
| dop[n + 0] = 0x3; /* Prococol id=0, code_set=3 (utf8) */ |
| dop[n + 1] = 0x08; /* PIV=0, ASSOC=0 (lu), desig_id=8 (scsi string) */ |
| dop[n + 3] = 20; |
| memcpy(dop + n + 4, "eui.", 4); |
| for (k = 0; k < 8; ++k) { |
| snprintf(b, sizeof(b), "%02X", nvme_id_ns_p[120 + k]); |
| memcpy(dop + n + 8 + (2 * k), b, 2); |
| } |
| return n + 24; |
| } |
| } |
| |
| /* Disconnect-Reconnect page for mode_sense */ |
| static int |
| resp_disconnect_pg(uint8_t * p, int pcontrol) |
| { |
| uint8_t disconnect_pg[] = {0x2, 0xe, 128, 128, 0, 10, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0}; |
| |
| memcpy(p, disconnect_pg, sizeof(disconnect_pg)); |
| if (1 == pcontrol) |
| memset(p + 2, 0, sizeof(disconnect_pg) - 2); |
| return sizeof(disconnect_pg); |
| } |
| |
| static uint8_t caching_m_pg[] = {0x8, 18, 0x14, 0, 0xff, 0xff, 0, 0, |
| 0xff, 0xff, 0xff, 0xff, 0x80, 0x14, 0, 0, |
| 0, 0, 0, 0}; |
| |
| /* Control mode page (SBC) for mode_sense */ |
| static int |
| resp_caching_m_pg(unsigned char *p, int pcontrol, bool wce) |
| { /* Caching page for mode_sense */ |
| uint8_t ch_caching_m_pg[] = {/* 0x8, 18, */ 0x4, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| uint8_t d_caching_m_pg[] = {0x8, 18, 0x14, 0, 0xff, 0xff, 0, 0, |
| 0xff, 0xff, 0xff, 0xff, 0x80, 0x14, 0, 0, 0, 0, 0, 0}; |
| |
| // if (SDEBUG_OPT_N_WCE & sdebug_opts) |
| caching_m_pg[2] &= ~0x4; /* set WCE=0 (default WCE=1) */ |
| if ((0 == pcontrol) || (3 == pcontrol)) { |
| if (wce) |
| caching_m_pg[2] |= 0x4; |
| else |
| caching_m_pg[2] &= ~0x4; |
| } |
| memcpy(p, caching_m_pg, sizeof(caching_m_pg)); |
| if (1 == pcontrol) { |
| if (wce) |
| ch_caching_m_pg[2] |= 0x4; |
| else |
| ch_caching_m_pg[2] &= ~0x4; |
| memcpy(p + 2, ch_caching_m_pg, sizeof(ch_caching_m_pg)); |
| } |
| else if (2 == pcontrol) { |
| if (wce) |
| d_caching_m_pg[2] |= 0x4; |
| else |
| d_caching_m_pg[2] &= ~0x4; |
| memcpy(p, d_caching_m_pg, sizeof(d_caching_m_pg)); |
| } |
| return sizeof(caching_m_pg); |
| } |
| |
| static uint8_t ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0, |
| 0, 0, 0x2, 0x4b}; |
| |
| /* Control mode page for mode_sense */ |
| static int |
| resp_ctrl_m_pg(uint8_t *p, int pcontrol) |
| { |
| uint8_t ch_ctrl_m_pg[] = {/* 0xa, 10, */ 0x6, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0}; |
| uint8_t d_ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0, |
| 0, 0, 0x2, 0x4b}; |
| |
| memcpy(p, ctrl_m_pg, sizeof(ctrl_m_pg)); |
| if (1 == pcontrol) |
| memcpy(p + 2, ch_ctrl_m_pg, sizeof(ch_ctrl_m_pg)); |
| else if (2 == pcontrol) |
| memcpy(p, d_ctrl_m_pg, sizeof(d_ctrl_m_pg)); |
| return sizeof(ctrl_m_pg); |
| } |
| |
| static uint8_t ctrl_ext_m_pg[] = {0x4a, 0x1, 0, 0x1c, 0, 0, 0x40, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, }; |
| |
| /* Control Extension mode page [0xa,0x1] for mode_sense */ |
| static int |
| resp_ctrl_ext_m_pg(uint8_t *p, int pcontrol) |
| { |
| uint8_t ch_ctrl_ext_m_pg[] = {/* 0x4a, 0x1, 0, 0x1c, */ 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, }; |
| uint8_t d_ctrl_ext_m_pg[] = {0x4a, 0x1, 0, 0x1c, 0, 0, 0x40, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, }; |
| |
| memcpy(p, ctrl_ext_m_pg, sizeof(ctrl_ext_m_pg)); |
| if (1 == pcontrol) |
| memcpy(p + 4, ch_ctrl_ext_m_pg, sizeof(ch_ctrl_ext_m_pg)); |
| else if (2 == pcontrol) |
| memcpy(p, d_ctrl_ext_m_pg, sizeof(d_ctrl_ext_m_pg)); |
| return sizeof(ctrl_ext_m_pg); |
| } |
| |
| static uint8_t iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0, 0, 0, 0x0, 0x0}; |
| |
| /* Informational Exceptions control mode page for mode_sense */ |
| static int |
| resp_iec_m_pg(uint8_t *p, int pcontrol) |
| { |
| uint8_t ch_iec_m_pg[] = {/* 0x1c, 0xa, */ 0x4, 0xf, 0, 0, 0, 0, 0, 0, |
| 0x0, 0x0}; |
| uint8_t d_iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0, 0, 0, 0x0, 0x0}; |
| |
| memcpy(p, iec_m_pg, sizeof(iec_m_pg)); |
| if (1 == pcontrol) |
| memcpy(p + 2, ch_iec_m_pg, sizeof(ch_iec_m_pg)); |
| else if (2 == pcontrol) |
| memcpy(p, d_iec_m_pg, sizeof(d_iec_m_pg)); |
| return sizeof(iec_m_pg); |
| } |
| |
| static uint8_t vs_ua_m_pg[] = {0x0, 0xe, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0}; |
| |
| /* Vendor specific Unit Attention mode page for mode_sense */ |
| static int |
| resp_vs_ua_m_pg(uint8_t *p, int pcontrol) |
| { |
| uint8_t ch_vs_ua_m_pg[] = {/* 0x0, 0xe, */ 0xff, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0}; |
| uint8_t d_vs_ua_m_pg[] = {0x0, 0xe, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0}; |
| |
| memcpy(p, vs_ua_m_pg, sizeof(vs_ua_m_pg)); |
| if (1 == pcontrol) |
| memcpy(p + 2, ch_vs_ua_m_pg, sizeof(ch_vs_ua_m_pg)); |
| else if (2 == pcontrol) |
| memcpy(p, d_vs_ua_m_pg, sizeof(d_vs_ua_m_pg)); |
| return sizeof(vs_ua_m_pg); |
| } |
| |
| void |
| sntl_init_dev_stat(struct sg_sntl_dev_state_t * dsp) |
| { |
| if (dsp) { |
| dsp->scsi_dsense = !! (0x4 & ctrl_m_pg[2]); |
| dsp->enclosure_override = vs_ua_m_pg[2]; |
| } |
| } |
| |
| |
| #define SDEBUG_MAX_MSENSE_SZ 256 |
| |
| /* Only support MODE SENSE(10). Returns the number of bytes written to dip, |
| * or -1 if error info placed in resp. */ |
| int |
| sntl_resp_mode_sense10(const struct sg_sntl_dev_state_t * dsp, |
| const uint8_t * cdbp, uint8_t * dip, int mx_di_len, |
| struct sg_sntl_result_t * resp) |
| { |
| bool dbd, llbaa, is_disk, bad_pcode; |
| int pcontrol, pcode, subpcode, bd_len, alloc_len, offset, len; |
| const uint32_t num_blocks = 0x100000; /* made up */ |
| const uint32_t lb_size = 512; /* guess */ |
| uint8_t dev_spec; |
| uint8_t * ap; |
| uint8_t arr[SDEBUG_MAX_MSENSE_SZ]; |
| |
| memset(resp, 0, sizeof(*resp)); |
| dbd = !! (cdbp[1] & 0x8); /* disable block descriptors */ |
| pcontrol = (cdbp[2] & 0xc0) >> 6; |
| pcode = cdbp[2] & 0x3f; |
| subpcode = cdbp[3]; |
| llbaa = !!(cdbp[1] & 0x10); |
| is_disk = ((dsp->pdt == PDT_DISK) || (dsp->pdt == PDT_ZBC)); |
| if (is_disk && !dbd) |
| bd_len = llbaa ? 16 : 8; |
| else |
| bd_len = 0; |
| alloc_len = sg_get_unaligned_be16(cdbp + 7); |
| memset(arr, 0, SDEBUG_MAX_MSENSE_SZ); |
| if (0x3 == pcontrol) { /* Saving values not supported */ |
| resp->asc = SAVING_PARAMS_UNSUP; |
| goto err_out; |
| } |
| /* for disks set DPOFUA bit and clear write protect (WP) bit */ |
| if (is_disk) |
| dev_spec = 0x10; /* =0x90 if WP=1 implies read-only */ |
| else |
| dev_spec = 0x0; |
| arr[3] = dev_spec; |
| if (16 == bd_len) |
| arr[4] = 0x1; /* set LONGLBA bit */ |
| arr[7] = bd_len; /* assume 255 or less */ |
| offset = 8; |
| ap = arr + offset; |
| |
| if (8 == bd_len) { |
| sg_put_unaligned_be32(num_blocks, ap + 0); |
| sg_put_unaligned_be16((uint16_t)lb_size, ap + 6); |
| offset += bd_len; |
| ap = arr + offset; |
| } else if (16 == bd_len) { |
| sg_put_unaligned_be64(num_blocks, ap + 0); |
| sg_put_unaligned_be32(lb_size, ap + 12); |
| offset += bd_len; |
| ap = arr + offset; |
| } |
| bad_pcode = false; |
| |
| switch (pcode) { |
| case 0x2: /* Disconnect-Reconnect page, all devices */ |
| if (0x0 == subpcode) |
| len = resp_disconnect_pg(ap, pcontrol); |
| else { |
| len = 0; |
| bad_pcode = true; |
| } |
| offset += len; |
| break; |
| case 0x8: /* Caching Mode page, disk (like) devices */ |
| if (! is_disk) { |
| len = 0; |
| bad_pcode = true; |
| } else if (0x0 == subpcode) |
| len = resp_caching_m_pg(ap, pcontrol, dsp->wce); |
| else { |
| len = 0; |
| bad_pcode = true; |
| } |
| offset += len; |
| break; |
| case 0xa: /* Control Mode page, all devices */ |
| if (0x0 == subpcode) |
| len = resp_ctrl_m_pg(ap, pcontrol); |
| else if (0x1 == subpcode) |
| len = resp_ctrl_ext_m_pg(ap, pcontrol); |
| else { |
| len = 0; |
| bad_pcode = true; |
| } |
| offset += len; |
| break; |
| case 0x1c: /* Informational Exceptions Mode page, all devices */ |
| if (0x0 == subpcode) |
| len = resp_iec_m_pg(ap, pcontrol); |
| else { |
| len = 0; |
| bad_pcode = true; |
| } |
| offset += len; |
| break; |
| case 0x3f: /* Read all Mode pages */ |
| if ((0 == subpcode) || (0xff == subpcode)) { |
| len = 0; |
| len = resp_disconnect_pg(ap + len, pcontrol); |
| if (is_disk) |
| len += resp_caching_m_pg(ap + len, pcontrol, dsp->wce); |
| len += resp_ctrl_m_pg(ap + len, pcontrol); |
| if (0xff == subpcode) |
| len += resp_ctrl_ext_m_pg(ap + len, pcontrol); |
| len += resp_iec_m_pg(ap + len, pcontrol); |
| len += resp_vs_ua_m_pg(ap + len, pcontrol); |
| offset += len; |
| } else { |
| resp->asc = INVALID_FIELD_IN_CDB; |
| resp->in_byte = 3; |
| resp->in_bit = 255; |
| goto err_out; |
| } |
| break; |
| case 0x0: /* Vendor specific "Unit Attention" mode page */ |
| /* all sub-page codes ?? */ |
| len = resp_vs_ua_m_pg(ap, pcontrol); |
| offset += len; |
| break; /* vendor is "NVMe " (from INQUIRY field) */ |
| default: |
| bad_pcode = true; |
| break; |
| } |
| if (bad_pcode) { |
| resp->asc = INVALID_FIELD_IN_CDB; |
| resp->in_byte = 2; |
| resp->in_bit = 5; |
| goto err_out; |
| } |
| sg_put_unaligned_be16(offset - 2, arr + 0); |
| len = (alloc_len < offset) ? alloc_len : offset; |
| len = (len < mx_di_len) ? len : mx_di_len; |
| memcpy(dip, arr, len); |
| return len; |
| |
| err_out: |
| resp->sstatus = SAM_STAT_CHECK_CONDITION; |
| resp->sk = SPC_SK_ILLEGAL_REQUEST; |
| return -1; |
| } |
| |
| #define SDEBUG_MAX_MSELECT_SZ 512 |
| |
| /* Only support MODE SELECT(10). Returns number of bytes used from dop, |
| * else -1 on error with sense code placed in resp. */ |
| int |
| sntl_resp_mode_select10(struct sg_sntl_dev_state_t * dsp, |
| const uint8_t * cdbp, const uint8_t * dop, int do_len, |
| struct sg_sntl_result_t * resp) |
| { |
| int pf, sp, ps, md_len, bd_len, off, spf, pg_len, rlen, param_len, mpage; |
| int sub_mpage; |
| uint8_t arr[SDEBUG_MAX_MSELECT_SZ]; |
| |
| memset(resp, 0, sizeof(*resp)); |
| memset(arr, 0, sizeof(arr)); |
| pf = cdbp[1] & 0x10; |
| sp = cdbp[1] & 0x1; |
| param_len = sg_get_unaligned_be16(cdbp + 7); |
| if ((0 == pf) || sp || (param_len > SDEBUG_MAX_MSELECT_SZ)) { |
| resp->asc = INVALID_FIELD_IN_CDB; |
| resp->in_byte = 1; |
| if (sp) |
| resp->in_bit = 0; |
| else if (0 == pf) |
| resp->in_bit = 4; |
| else { |
| resp->in_byte = 7; |
| resp->in_bit = 255; |
| } |
| goto err_out; |
| } |
| rlen = (do_len < param_len) ? do_len : param_len; |
| memcpy(arr, dop, rlen); |
| md_len = sg_get_unaligned_be16(arr + 0) + 2; |
| bd_len = sg_get_unaligned_be16(arr + 6); |
| if (md_len > 2) { |
| resp->asc = INVALID_FIELD_IN_PARAM_LIST; |
| resp->in_byte = 0; |
| resp->in_bit = 255; |
| goto err_out; |
| } |
| off = bd_len + 8; |
| mpage = arr[off] & 0x3f; |
| ps = !!(arr[off] & 0x80); |
| if (ps) { |
| resp->asc = INVALID_FIELD_IN_PARAM_LIST; |
| resp->in_byte = off; |
| resp->in_bit = 7; |
| goto err_out; |
| } |
| spf = !!(arr[off] & 0x40); |
| pg_len = spf ? (sg_get_unaligned_be16(arr + off + 2) + 4) : |
| (arr[off + 1] + 2); |
| sub_mpage = spf ? arr[off + 1] : 0; |
| if ((pg_len + off) > param_len) { |
| resp->asc = PARAMETER_LIST_LENGTH_ERR; |
| goto err_out; |
| } |
| switch (mpage) { |
| case 0x8: /* Caching Mode page */ |
| if (0x0 == sub_mpage) { |
| if (caching_m_pg[1] == arr[off + 1]) { |
| memcpy(caching_m_pg + 2, arr + off + 2, |
| sizeof(caching_m_pg) - 2); |
| dsp->wce = !!(caching_m_pg[2] & 0x4); |
| dsp->wce_changed = true; |
| break; |
| } |
| } |
| goto def_case; |
| case 0xa: /* Control Mode page */ |
| if (0x0 == sub_mpage) { |
| if (ctrl_m_pg[1] == arr[off + 1]) { |
| memcpy(ctrl_m_pg + 2, arr + off + 2, |
| sizeof(ctrl_m_pg) - 2); |
| dsp->scsi_dsense = !!(ctrl_m_pg[2] & 0x4); |
| break; |
| } |
| } |
| goto def_case; |
| case 0x1c: /* Informational Exceptions Mode page (SBC) */ |
| if (0x0 == sub_mpage) { |
| if (iec_m_pg[1] == arr[off + 1]) { |
| memcpy(iec_m_pg + 2, arr + off + 2, |
| sizeof(iec_m_pg) - 2); |
| break; |
| } |
| } |
| goto def_case; |
| case 0x0: /* Vendor specific "Unit Attention" mode page */ |
| if (vs_ua_m_pg[1] == arr[off + 1]) { |
| memcpy(vs_ua_m_pg + 2, arr + off + 2, |
| sizeof(vs_ua_m_pg) - 2); |
| dsp->enclosure_override = vs_ua_m_pg[2]; |
| } |
| break; |
| default: |
| def_case: |
| resp->asc = INVALID_FIELD_IN_PARAM_LIST; |
| resp->in_byte = off; |
| resp->in_bit = 5; |
| goto err_out; |
| } |
| return rlen; |
| |
| err_out: |
| resp->sk = SPC_SK_ILLEGAL_REQUEST; |
| resp->sstatus = SAM_STAT_CHECK_CONDITION; |
| return -1; |
| } |
| |
| #endif /* (HAVE_NVME && (! IGNORE_NVME)) [near line 140] */ |
