1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /*- |
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4 | * SPDX-License-Identifier: BSD-2-Clause-FreeBSD |
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5 | * |
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6 | * Copyright (C) 2019 Alexander Motin <mav@FreeBSD.org> |
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7 | * |
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8 | * Redistribution and use in source and binary forms, with or without |
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9 | * modification, are permitted provided that the following conditions |
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10 | * are met: |
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11 | * 1. Redistributions of source code must retain the above copyright |
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12 | * notice, this list of conditions and the following disclaimer. |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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27 | * SUCH DAMAGE. |
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28 | */ |
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29 | |
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30 | #include <sys/cdefs.h> |
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31 | __FBSDID("$FreeBSD$"); |
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32 | |
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33 | #include <sys/param.h> |
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34 | #include <sys/ioccom.h> |
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35 | |
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36 | #include <ctype.h> |
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37 | #include <err.h> |
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38 | #include <fcntl.h> |
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39 | #include <stdbool.h> |
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40 | #include <stddef.h> |
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41 | #include <stdio.h> |
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42 | #include <stdlib.h> |
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43 | #include <string.h> |
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44 | #include <unistd.h> |
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45 | |
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46 | #include "nvmecontrol.h" |
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47 | |
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48 | /* Tables for command line parsing */ |
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49 | |
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50 | static cmd_fn_t sanitize; |
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51 | |
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52 | static struct options { |
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53 | bool ause; |
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54 | bool ndas; |
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55 | bool oipbp; |
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56 | bool reportonly; |
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57 | uint8_t owpass; |
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58 | uint32_t ovrpat; |
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59 | const char *sanact; |
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60 | const char *dev; |
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61 | } opt = { |
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62 | .ause = false, |
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63 | .ndas = false, |
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64 | .oipbp = false, |
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65 | .reportonly = false, |
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66 | .owpass = 1, |
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67 | .ovrpat = 0, |
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68 | .sanact = NULL, |
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69 | .dev = NULL, |
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70 | }; |
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71 | |
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72 | static const struct opts sanitize_opts[] = { |
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73 | #define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc } |
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74 | OPT("ause", 'U', arg_none, opt, ause, |
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75 | "Allow Unrestricted Sanitize Exit"), |
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76 | OPT("ndas", 'd', arg_none, opt, ndas, |
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77 | "No Deallocate After Sanitize"), |
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78 | OPT("oipbp", 'I', arg_none, opt, oipbp, |
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79 | "Overwrite Invert Pattern Between Passes"), |
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80 | OPT("reportonly", 'r', arg_none, opt, reportonly, |
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81 | "Report previous sanitize status"), |
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82 | OPT("owpass", 'c', arg_uint8, opt, owpass, |
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83 | "Overwrite Pass Count"), |
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84 | OPT("ovrpat", 'p', arg_uint32, opt, ovrpat, |
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85 | "Overwrite Pattern"), |
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86 | OPT("sanact", 'a', arg_string, opt, sanact, |
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87 | "Sanitize Action (block, overwrite, crypto)"), |
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88 | { NULL, 0, arg_none, NULL, NULL } |
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89 | }; |
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90 | #undef OPT |
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91 | |
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92 | static const struct args sanitize_args[] = { |
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93 | { arg_string, &opt.dev, "controller-id" }, |
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94 | { arg_none, NULL, NULL }, |
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95 | }; |
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96 | |
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97 | static struct cmd sanitize_cmd = { |
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98 | .name = "sanitize", |
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99 | .fn = sanitize, |
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100 | .descr = "Sanitize NVM subsystem", |
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101 | .ctx_size = sizeof(opt), |
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102 | .opts = sanitize_opts, |
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103 | .args = sanitize_args, |
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104 | }; |
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105 | |
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106 | CMD_COMMAND(sanitize_cmd); |
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107 | |
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108 | /* End of tables for command line parsing */ |
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109 | |
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110 | static void |
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111 | sanitize(const struct cmd *f, int argc, char *argv[]) |
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112 | { |
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113 | struct nvme_controller_data cd; |
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114 | struct nvme_pt_command pt; |
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115 | struct nvme_sanitize_status_page ss; |
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116 | char *path; |
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117 | uint32_t nsid; |
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118 | int sanact = 0, fd, delay = 1; |
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119 | |
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120 | if (arg_parse(argc, argv, f)) |
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121 | return; |
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122 | |
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123 | if (opt.sanact == NULL) { |
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124 | if (!opt.reportonly) { |
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125 | fprintf(stderr, "Sanitize Action is not specified\n"); |
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126 | arg_help(argc, argv, f); |
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127 | } |
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128 | } else { |
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129 | if (strcmp(opt.sanact, "exitfailure") == 0) |
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130 | sanact = 1; |
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131 | else if (strcmp(opt.sanact, "block") == 0) |
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132 | sanact = 2; |
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133 | else if (strcmp(opt.sanact, "overwrite") == 0) |
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134 | sanact = 3; |
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135 | else if (strcmp(opt.sanact, "crypto") == 0) |
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136 | sanact = 4; |
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137 | else { |
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138 | fprintf(stderr, "Incorrect Sanitize Action value\n"); |
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139 | arg_help(argc, argv, f); |
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140 | } |
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141 | } |
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142 | if (opt.owpass == 0 || opt.owpass > 16) { |
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143 | fprintf(stderr, "Incorrect Overwrite Pass Count value\n"); |
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144 | arg_help(argc, argv, f); |
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145 | } |
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146 | |
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147 | open_dev(opt.dev, &fd, 1, 1); |
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148 | get_nsid(fd, &path, &nsid); |
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149 | if (nsid != 0) { |
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150 | close(fd); |
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151 | open_dev(path, &fd, 1, 1); |
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152 | } |
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153 | free(path); |
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154 | |
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155 | if (opt.reportonly) |
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156 | goto wait; |
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157 | |
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158 | /* Check that controller can execute this command. */ |
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159 | read_controller_data(fd, &cd); |
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160 | if (((cd.sanicap >> NVME_CTRLR_DATA_SANICAP_BES_SHIFT) & |
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161 | NVME_CTRLR_DATA_SANICAP_BES_MASK) == 0 && sanact == 2) |
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162 | errx(1, "controller does not support Block Erase"); |
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163 | if (((cd.sanicap >> NVME_CTRLR_DATA_SANICAP_OWS_SHIFT) & |
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164 | NVME_CTRLR_DATA_SANICAP_OWS_MASK) == 0 && sanact == 3) |
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165 | errx(1, "controller does not support Overwrite"); |
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166 | if (((cd.sanicap >> NVME_CTRLR_DATA_SANICAP_CES_SHIFT) & |
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167 | NVME_CTRLR_DATA_SANICAP_CES_MASK) == 0 && sanact == 4) |
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168 | errx(1, "controller does not support Crypto Erase"); |
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169 | |
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170 | /* |
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171 | * If controller supports only one namespace, we may sanitize it. |
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172 | * If there can be more, make user explicit in his commands. |
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173 | */ |
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174 | if (nsid != 0 && cd.nn > 1) |
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175 | errx(1, "can't sanitize one of namespaces, specify controller"); |
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176 | |
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177 | memset(&pt, 0, sizeof(pt)); |
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178 | pt.cmd.opc = NVME_OPC_SANITIZE; |
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179 | pt.cmd.cdw10 = htole32((opt.ndas << 9) | (opt.oipbp << 8) | |
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180 | ((opt.owpass & 0xf) << 4) | (opt.ause << 3) | sanact); |
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181 | pt.cmd.cdw11 = htole32(opt.ovrpat); |
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182 | |
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183 | if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) |
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184 | err(1, "sanitize request failed"); |
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185 | |
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186 | if (nvme_completion_is_error(&pt.cpl)) |
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187 | errx(1, "sanitize request returned error"); |
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188 | |
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189 | wait: |
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190 | read_logpage(fd, NVME_LOG_SANITIZE_STATUS, |
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191 | NVME_GLOBAL_NAMESPACE_TAG, 0, 0, 0, &ss, sizeof(ss)); |
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192 | switch ((ss.sstat >> NVME_SS_PAGE_SSTAT_STATUS_SHIFT) & |
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193 | NVME_SS_PAGE_SSTAT_STATUS_MASK) { |
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194 | case NVME_SS_PAGE_SSTAT_STATUS_NEVER: |
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195 | printf("Never sanitized"); |
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196 | break; |
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197 | case NVME_SS_PAGE_SSTAT_STATUS_COMPLETED: |
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198 | printf("Sanitize completed"); |
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199 | break; |
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200 | case NVME_SS_PAGE_SSTAT_STATUS_INPROG: |
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201 | printf("Sanitize in progress: %u%% (%u/65535)\r", |
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202 | (ss.sprog * 100 + 32768) / 65536, ss.sprog); |
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203 | fflush(stdout); |
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204 | if (delay < 16) |
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205 | delay++; |
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206 | sleep(delay); |
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207 | goto wait; |
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208 | case NVME_SS_PAGE_SSTAT_STATUS_FAILED: |
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209 | printf("Sanitize failed"); |
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210 | break; |
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211 | case NVME_SS_PAGE_SSTAT_STATUS_COMPLETEDWD: |
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212 | printf("Sanitize completed with deallocation"); |
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213 | break; |
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214 | default: |
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215 | printf("Sanitize status unknown"); |
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216 | break; |
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217 | } |
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218 | if (delay > 1) |
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219 | printf(" "); |
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220 | printf("\n"); |
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221 | |
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222 | close(fd); |
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223 | exit(0); |
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224 | } |
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