/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (C) 2019 Alexander Motin * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "nvmecontrol.h" /* Tables for command line parsing */ static cmd_fn_t sanitize; static struct options { bool ause; bool ndas; bool oipbp; bool reportonly; uint8_t owpass; uint32_t ovrpat; const char *sanact; const char *dev; } opt = { .ause = false, .ndas = false, .oipbp = false, .reportonly = false, .owpass = 1, .ovrpat = 0, .sanact = NULL, .dev = NULL, }; static const struct opts sanitize_opts[] = { #define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc } OPT("ause", 'U', arg_none, opt, ause, "Allow Unrestricted Sanitize Exit"), OPT("ndas", 'd', arg_none, opt, ndas, "No Deallocate After Sanitize"), OPT("oipbp", 'I', arg_none, opt, oipbp, "Overwrite Invert Pattern Between Passes"), OPT("reportonly", 'r', arg_none, opt, reportonly, "Report previous sanitize status"), OPT("owpass", 'c', arg_uint8, opt, owpass, "Overwrite Pass Count"), OPT("ovrpat", 'p', arg_uint32, opt, ovrpat, "Overwrite Pattern"), OPT("sanact", 'a', arg_string, opt, sanact, "Sanitize Action (block, overwrite, crypto)"), { NULL, 0, arg_none, NULL, NULL } }; #undef OPT static const struct args sanitize_args[] = { { arg_string, &opt.dev, "controller-id" }, { arg_none, NULL, NULL }, }; static struct cmd sanitize_cmd = { .name = "sanitize", .fn = sanitize, .descr = "Sanitize NVM subsystem", .ctx_size = sizeof(opt), .opts = sanitize_opts, .args = sanitize_args, }; CMD_COMMAND(sanitize_cmd); /* End of tables for command line parsing */ static void sanitize(const struct cmd *f, int argc, char *argv[]) { struct nvme_controller_data cd; struct nvme_pt_command pt; struct nvme_sanitize_status_page ss; char *path; uint32_t nsid; int sanact = 0, fd, delay = 1; if (arg_parse(argc, argv, f)) return; if (opt.sanact == NULL) { if (!opt.reportonly) { fprintf(stderr, "Sanitize Action is not specified\n"); arg_help(argc, argv, f); } } else { if (strcmp(opt.sanact, "exitfailure") == 0) sanact = 1; else if (strcmp(opt.sanact, "block") == 0) sanact = 2; else if (strcmp(opt.sanact, "overwrite") == 0) sanact = 3; else if (strcmp(opt.sanact, "crypto") == 0) sanact = 4; else if ((sanact = (int)strtol(opt.sanact, NULL, 10) != 0) && (sanact >= 1 && sanact <= 4)) ; /* compat with nvme sanitize -a number */ else { fprintf(stderr, "Incorrect Sanitize Action value: %s\n", opt.sanact); arg_help(argc, argv, f); } } if (opt.owpass == 0 || opt.owpass > 16) { fprintf(stderr, "Incorrect Overwrite Pass Count value\n"); arg_help(argc, argv, f); } open_dev(opt.dev, &fd, 1, 1); get_nsid(fd, &path, &nsid); if (nsid != 0) { close(fd); open_dev(path, &fd, 1, 1); } free(path); if (opt.reportonly) goto wait; /* Check that controller can execute this command. */ if (read_controller_data(fd, &cd)) errx(EX_IOERR, "Identify request failed"); if (NVMEV(NVME_CTRLR_DATA_SANICAP_BES, cd.sanicap) == 0 && sanact == 2) errx(EX_UNAVAILABLE, "controller does not support Block Erase"); if (NVMEV(NVME_CTRLR_DATA_SANICAP_OWS, cd.sanicap) == 0 && sanact == 3) errx(EX_UNAVAILABLE, "controller does not support Overwrite"); if (NVMEV(NVME_CTRLR_DATA_SANICAP_CES, cd.sanicap) == 0 && sanact == 4) errx(EX_UNAVAILABLE, "controller does not support Crypto Erase"); /* * If controller supports only one namespace, we may sanitize it. * If there can be more, make user explicit in his commands. */ if (nsid != 0 && cd.nn > 1) errx(EX_UNAVAILABLE, "can't sanitize one of namespaces, specify controller"); memset(&pt, 0, sizeof(pt)); pt.cmd.opc = NVME_OPC_SANITIZE; pt.cmd.cdw10 = htole32((opt.ndas << 9) | (opt.oipbp << 8) | ((opt.owpass & 0xf) << 4) | (opt.ause << 3) | sanact); pt.cmd.cdw11 = htole32(opt.ovrpat); if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) err(EX_IOERR, "sanitize request failed"); if (nvme_completion_is_error(&pt.cpl)) errx(EX_IOERR, "sanitize request returned error"); wait: read_logpage(fd, NVME_LOG_SANITIZE_STATUS, NVME_GLOBAL_NAMESPACE_TAG, 0, 0, 0, 0, 0, 0, 0, &ss, sizeof(ss)); switch (NVMEV(NVME_SS_PAGE_SSTAT_STATUS, ss.sstat)) { case NVME_SS_PAGE_SSTAT_STATUS_NEVER: printf("Never sanitized"); break; case NVME_SS_PAGE_SSTAT_STATUS_COMPLETED: printf("Sanitize completed"); break; case NVME_SS_PAGE_SSTAT_STATUS_INPROG: printf("Sanitize in progress: %u%% (%u/65535)\r", (ss.sprog * 100 + 32768) / 65536, ss.sprog); fflush(stdout); if (delay < 16) delay++; sleep(delay); goto wait; case NVME_SS_PAGE_SSTAT_STATUS_FAILED: printf("Sanitize failed"); break; case NVME_SS_PAGE_SSTAT_STATUS_COMPLETEDWD: printf("Sanitize completed with deallocation"); break; default: printf("Sanitize status unknown"); break; } if (delay > 1) printf(" "); printf("\n"); close(fd); exit(0); }