/* * Copyright (c) 2009-2022 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 #include #include #include #include #include #define __STDC_FORMAT_MACROS 1 #include #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 = "3.19 20220127"; /* List of external functions that need to be defined for each OS are * listed at the top of sg_pt_dummy.c */ 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 = sg_pdt_s_eq(sg_lib_pdt_decay(dsp->pdt), PDT_DISK_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] */