1 | /* $Id: libmondo-raid.c 507 2006-04-30 00:04:16Z bcornec $
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2 | subroutines for handling RAID
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3 | */
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4 |
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5 | /**
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6 | * @file
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7 | * Functions for handling RAID (especially during restore).
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8 | */
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9 |
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10 | #include "my-stuff.h"
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11 | #include "mondostructures.h"
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12 | #include "newt-specific-EXT.h"
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13 | #include "libmondo-files-EXT.h"
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14 | #include "libmondo-tools-EXT.h"
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15 | #include "libmondo-string-EXT.h"
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16 | #include "libmondo-raid.h"
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17 |
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18 | #ifdef __FreeBSD__
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19 | /* Nonstandard library functions: */
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20 | extern void errx(int exitval, const char *fmt, ...);
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21 | extern char *strsep(char **stringp, const char *delim);
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22 | #endif
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23 |
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24 | /*@unused@*/
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25 | //static char cvsid[] = "$Id: libmondo-raid.c 507 2006-04-30 00:04:16Z bcornec $";
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26 |
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27 |
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28 | /**
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29 | * @addtogroup raidGroup
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30 | * @{
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31 | */
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32 | /**
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33 | * See if a particular RAID level is supported by the kernel.
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34 | * @param raidno The RAID level (-1 through 5) to check. -1 means "linear" under Linux and
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35 | * "concatenated" under FreeBSD. It's really the same thing, just different wording.
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36 | * @return TRUE if it's supported, FALSE if not.
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37 | */
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38 | bool is_this_raid_personality_registered(int raidno)
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39 | {
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40 | #ifdef __FreeBSD__
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41 | return ((raidno == -1) || (raidno == 0) || (raidno == 1)
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42 | || (raidno == 5)) ? TRUE : FALSE;
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43 | #else
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44 | /*@ buffer ********************************************************** */
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45 | char *command;
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46 | int res;
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47 |
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48 | if (raidno == -1) {
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49 | asprintf(&command,
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50 | "grep \"linear\" /proc/mdstat > /dev/null 2> /dev/null");
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51 | } else {
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52 | asprintf(&command,
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53 | "grep \"raid%d\" /proc/mdstat > /dev/null 2> /dev/null",
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54 | raidno);
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55 | }
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56 | log_it("Is raid %d registered? Command = '%s'", raidno, command);
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57 | res = system(command);
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58 | paranoid_free(command);
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59 | if (res) {
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60 | return (FALSE);
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61 | } else {
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62 | return (TRUE);
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63 | }
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64 | #endif
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65 | }
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66 |
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67 |
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68 | /**
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69 | * Search for @p device in @p disklist.
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70 | * @param disklist The disklist to search in.
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71 | * @param device The device to search for.
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72 | * @return The index number of @p device, or -1 if it does not exist.
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73 | */
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74 | int
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75 | where_in_drivelist_is_drive(struct list_of_disks *disklist, char *device)
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76 | {
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77 |
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78 | /*@ int ************************************************************* */
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79 | int i = 0;
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80 |
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81 | assert(disklist != NULL);
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82 | assert_string_is_neither_NULL_nor_zerolength(device);
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83 |
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84 | for (i = 0; i < disklist->entries; i++) {
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85 | if (!strcmp(disklist->el[i].device, device)) {
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86 | break;
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87 | }
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88 | }
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89 | if (i == disklist->entries) {
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90 | return (-1);
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91 | } else {
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92 | return (i);
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93 | }
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94 | }
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95 |
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96 | /**
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97 | * Determine which RAID device is using a particular partition.
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98 | * @param raidlist The RAID information structure.
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99 | * @param device The partition to find out about.
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100 | * @return The index number of the RAID device using @p device, or -1 if there is none.
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101 | */
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102 | int
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103 | which_raid_device_is_using_this_partition(struct raidlist_itself *raidlist,
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104 | char *device)
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105 | {
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106 | #ifdef __FreeBSD__
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107 | // FreeBSD-specific version of which_raid_device_is_using_this_partition()
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108 | /*@ int ********************************************************* */
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109 | int i = 0;
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110 |
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111 | for (i = 0; i < raidlist->entries; i++) {
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112 | bool thisone = FALSE;
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113 | int j, k, l;
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114 |
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115 | for (j = 0; j < raidlist->el[i].plexes; ++j) {
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116 | for (k = 0; k < raidlist->el[i].plex[j].subdisks; ++k) {
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117 | for (l = 0; l < raidlist->disks.entries; ++l) {
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118 | if (!strcmp(raidlist->disks.el[l].device,
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119 | device) &&
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120 | !strcmp(raidlist->el[i].plex[j].sd[k].which_device,
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121 | raidlist->disks.el[l].name))
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122 | thisone = TRUE;
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123 | }
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124 | }
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125 | }
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126 |
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127 | if (thisone) {
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128 | break;
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129 | }
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130 | }
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131 | if (i == raidlist->entries) {
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132 | return (-1);
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133 | } else {
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134 | return (i);
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135 | }
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136 | }
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137 |
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138 | #else
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139 | // Linux-specific version of which_raid_device_is_using_this_partition()
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140 | // and one other function which FreeBSD doesn't use
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141 |
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142 | int current_raiddev = 0;
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143 |
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144 | assert_string_is_neither_NULL_nor_zerolength(device);
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145 | assert(raidlist != NULL);
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146 |
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147 | for (current_raiddev = 0; current_raiddev < raidlist->entries;
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148 | current_raiddev++) {
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149 | if (where_in_drivelist_is_drive
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150 | (&raidlist->el[current_raiddev].data_disks, device) >= 0
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151 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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152 | spare_disks, device) >= 0
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153 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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154 | parity_disks, device) >= 0
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155 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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156 | failed_disks, device) >= 0) {
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157 | break;
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158 | }
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159 | }
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160 | if (current_raiddev == raidlist->entries) {
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161 | return (-1);
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162 | } else {
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163 | return (current_raiddev);
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164 | }
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165 | }
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166 |
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167 | /**
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168 | * Write an @c int variable to a list of RAID variables.
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169 | * @param raidrec The RAID device record to write to.
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170 | * @param lino The variable index number to modify/create.
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171 | * @param label The label to write.
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172 | * @param value The value to write.
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173 | */
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174 | void
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175 | write_variableINT_to_raid_var_line(struct raid_device_record *raidrec,
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176 | int lino, char *label, int value)
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177 | {
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178 | /*@ buffers ***************************************************** */
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179 | char *sz_value;
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180 |
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181 | assert(raidrec != NULL);
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182 | assert(label != NULL);
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183 |
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184 | asprintf(&sz_value, "%d", value);
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185 | strcpy(raidrec->additional_vars.el[lino].label, label);
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186 | strcpy(raidrec->additional_vars.el[lino].value, sz_value);
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187 | paranoid_free(sz_value);
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188 | }
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189 | #endif
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190 |
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191 | #ifdef __FreeBSD__
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192 | /**
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193 | * Add a disk to a RAID plex.
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194 | * @param p The plex to add the device to.
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195 | * @param device_to_add The device to add to @p p.
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196 | */
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197 | void add_disk_to_raid_device(struct vinum_plex *p, char *device_to_add)
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198 | {
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199 | strcpy(p->sd[p->subdisks].which_device, device_to_add);
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200 | ++p->subdisks;
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201 |
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202 | }
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203 | #else
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204 | /**
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205 | * Add a disk to a RAID device.
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206 | * @param disklist The disklist to add the device to.
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207 | * @param device_to_add The device to add to @p disklist.
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208 | * @param index The index number of the disklist entry we're creating.
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209 | */
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210 | void add_disk_to_raid_device(struct list_of_disks *disklist,
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211 | char *device_to_add, int index)
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212 | {
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213 | int items;
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214 |
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215 | assert(disklist != NULL);
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216 | assert_string_is_neither_NULL_nor_zerolength(device_to_add);
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217 | items = disklist->entries;
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218 | strcpy(disklist->el[items].device, device_to_add);
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219 | disklist->el[items].index = index;
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220 | items++;
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221 | disklist->entries = items;
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222 | }
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223 | #endif
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224 |
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225 | /**
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226 | * Save the additional RAID variables to a stream.
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227 | * @param vars The RAID variable list to save.
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228 | * @param fout The FILE pointer to save them to.
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229 | */
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230 | void
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231 | save_additional_vars_to_file(struct additional_raid_variables *vars,
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232 | FILE * fout)
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233 | {
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234 | int i;
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235 |
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236 | assert(vars != NULL);
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237 | assert(fout != NULL);
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238 |
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239 | for (i = 0; i < vars->entries; i++) {
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240 | fprintf(fout, " %-21s %s\n", vars->el[i].label,
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241 | vars->el[i].value);
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242 | }
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243 | }
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244 |
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245 |
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246 | /**
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247 | * Save a raidlist structure to disk in raidtab format.
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248 | * @param raidlist The raidlist to save.
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249 | * @param fname The file to save it to.
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250 | * @return 0, always.
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251 | * @bug Return value is redundant.
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252 | */
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253 | int save_raidlist_to_raidtab(struct raidlist_itself *raidlist, char *fname)
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254 | {
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255 | FILE *fout;
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256 | int current_raid_device;
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257 | #ifdef __FreeBSD__
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258 | int i;
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259 | #else
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260 | // Linux
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261 | #endif
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262 |
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263 | assert(raidlist != NULL);
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264 | assert_string_is_neither_NULL_nor_zerolength(fname);
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265 |
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266 | if (raidlist->entries <= 0) {
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267 | unlink(fname);
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268 | log_it("Deleting raidtab (no RAID devs anyway)");
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269 | return (0);
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270 | }
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271 | if (!(fout = fopen(fname, "w"))) {
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272 | log_OS_error("Failed to save raidlist");
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273 | return (1);
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274 | }
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275 | fprintf(fout, "# Generated by Mondo Rescue\n");
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276 |
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277 | #ifdef __FreeBSD__
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278 | for (i = 0; i < raidlist->disks.entries; ++i) {
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279 | fprintf(fout, "drive %s device %s\n", raidlist->disks.el[i].name,
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280 | raidlist->disks.el[i].device);
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281 | }
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282 | for (i = 0; i < (raidlist->spares.entries); ++i) {
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283 | fprintf(fout, "drive %s device %s hotspare\n",
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284 | raidlist->spares.el[i].name,
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285 | raidlist->spares.el[i].device);
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286 | }
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287 | #endif
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288 |
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289 | for (current_raid_device = 0; current_raid_device < raidlist->entries;
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290 | current_raid_device++) {
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291 | save_raidrec_to_file(&raidlist->el[current_raid_device], fout);
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292 | }
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293 | paranoid_fclose(fout);
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294 | return (0);
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295 | }
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296 |
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297 |
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298 | /**
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299 | * Save an individual RAID device record to a stream.
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300 | * @param raidrec The RAID device record to save.
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301 | * @param fout The stream to save it to.
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302 | */
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303 | void save_raidrec_to_file(struct
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304 | #ifdef __FreeBSD__
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305 | vinum_volume
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306 | #else
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307 | raid_device_record
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308 | #endif
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309 | * raidrec, FILE * fout)
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310 | {
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311 | #ifdef __FreeBSD__
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312 | int i, j;
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313 |
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314 | fprintf(fout, "\nvolume %s\n", raidrec->volname);
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315 | for (i = 0; i < raidrec->plexes; ++i) {
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316 | char *org;
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317 | switch (raidrec->plex[i].raidlevel) {
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318 | case -1:
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319 | asprintf(&org, "%s", "concat");
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320 | break;
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321 | case 0:
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322 | asprintf(&org, "%s", "striped");
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323 | break;
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324 | case 5:
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325 | asprintf(&org, "%s", "raid5");
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326 | break;
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327 | }
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328 | fprintf(fout, " plex org %s", org);
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329 | paranoid_free(org);
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330 |
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331 | if (raidrec->plex[i].raidlevel != -1) {
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332 | fprintf(fout, " %ik", raidrec->plex[i].stripesize);
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333 | }
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334 | fprintf(fout, "\n");
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335 |
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336 | for (j = 0; j < raidrec->plex[i].subdisks; ++j) {
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337 | fprintf(fout, " sd drive %s size 0\n",
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338 | raidrec->plex[i].sd[j].which_device);
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339 | }
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340 | }
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341 | #else
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342 | assert(raidrec != NULL);
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343 | assert(fout != NULL);
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344 |
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345 | fprintf(fout, "raiddev %s\n", raidrec->raid_device);
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346 | if (raidrec->raid_level == -1) {
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347 | fprintf(fout, " raid-level linear\n");
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348 | } else {
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349 | fprintf(fout, " raid-level %d\n",
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350 | raidrec->raid_level);
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351 | }
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352 | fprintf(fout, " chunk-size %d\n", raidrec->chunk_size);
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353 | fprintf(fout, " nr-raid-disks %d\n",
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354 | raidrec->data_disks.entries);
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355 | fprintf(fout, " nr-spare-disks %d\n",
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356 | raidrec->spare_disks.entries);
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357 | if (raidrec->parity_disks.entries > 0) {
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358 | fprintf(fout, " nr-parity-disks %d\n",
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359 | raidrec->parity_disks.entries);
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360 | }
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361 |
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362 | fprintf(fout, " persistent-superblock %d\n",
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363 | raidrec->persistent_superblock);
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364 | save_additional_vars_to_file(&raidrec->additional_vars, fout);
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365 | fprintf(fout, "\n");
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366 | save_disklist_to_file("raid-disk", &raidrec->data_disks, fout);
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367 | save_disklist_to_file("spare-disk", &raidrec->spare_disks, fout);
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368 | save_disklist_to_file("parity-disk", &raidrec->parity_disks, fout);
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369 | save_disklist_to_file("failed-disk", &raidrec->failed_disks, fout);
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370 | fprintf(fout, "\n");
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371 | #endif
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372 | }
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373 |
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374 | /**
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375 | * Retrieve the next line from a raidtab stream.
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376 | * @param fin The file to read the input from.
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377 | * @param label Where to put the line's label.
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378 | * @param value Where to put the line's value.
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379 | * @return 0 if the line was read and stored successfully, 1 if we're at end of file.
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380 | */
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381 | int get_next_raidtab_line(FILE * fin, char *label, char *value)
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382 | {
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383 | char *incoming = NULL;
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384 | char *p;
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385 | size_t n = 0;
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386 |
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387 | assert(fin != NULL);
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388 | assert(label != NULL);
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389 | assert(value != NULL);
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390 |
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391 | label[0] = value[0] = '\0';
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392 | if (feof(fin)) {
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393 | return (1);
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394 | }
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395 |
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396 | for (getline(&incoming, &n, fin); !feof(fin);
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397 | getline(&incoming, &n, fin)) {
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398 | strip_spaces(incoming);
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399 | p = strchr(incoming, ' ');
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400 | if (strlen(incoming) < 3 || incoming[0] == '#' || !p) {
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401 | continue;
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402 | }
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403 | *(p++) = '\0';
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404 | while (*p == ' ') {
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405 | p++;
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406 | }
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407 | strcpy(label, incoming);
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408 | strcpy(value, p);
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409 | paranoid_free(incoming);
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410 | return (0);
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411 | }
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412 | paranoid_free(incoming);
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413 | return (1);
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414 | }
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415 |
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416 |
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417 | /**
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418 | * Load a raidtab file into a raidlist structure.
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419 | * @param raidlist The raidlist to fill.
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420 | * @param fname The file to read from.
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421 | * @return 0 for success, 1 for failure.
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422 | */
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423 | #ifdef __FreeBSD__
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424 | int load_raidtab_into_raidlist(struct raidlist_itself *raidlist,
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425 | char *fname)
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426 | {
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427 | FILE *fin;
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428 | char *tmp1;
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429 | int items;
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430 |
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431 | raidlist->spares.entries = 0;
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432 | raidlist->disks.entries = 0;
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433 | if (length_of_file(fname) < 5) {
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434 | log_it("Raidtab is very small or non-existent. Ignoring it.");
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435 | raidlist->entries = 0;
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436 | return (0);
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437 | }
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438 | if (!(fin = fopen(fname, "r"))) {
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439 | log_it("Cannot open raidtab");
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440 | return (1);
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441 | }
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442 | items = 0;
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443 | log_it("Loading raidtab...");
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444 | while (!feof(fin)) {
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445 | int argc;
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446 | char **argv = get_next_vinum_conf_line(fin, &argc);
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447 | if (!argv)
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448 | break;
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449 | if (!strcmp(argv[0], "drive")) {
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450 | char *drivename, *devname;
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451 | if (argc < 4)
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452 | continue;
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453 | drivename = argv[1];
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454 | devname = get_option_val(argc, argv, "device");
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455 | if (!devname)
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456 | continue;
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457 |
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458 | if (get_option_state(argc, argv, "hotspare")) {
|
---|
459 | strcpy(raidlist->spares.el[raidlist->spares.entries].name,
|
---|
460 | drivename);
|
---|
461 | strcpy(raidlist->spares.el[raidlist->spares.entries].
|
---|
462 | device, devname);
|
---|
463 | raidlist->spares.el[raidlist->spares.entries].index =
|
---|
464 | raidlist->disks.entries;
|
---|
465 | raidlist->spares.entries++;
|
---|
466 | } else {
|
---|
467 | strcpy(raidlist->disks.el[raidlist->disks.entries].name,
|
---|
468 | drivename);
|
---|
469 | strcpy(raidlist->disks.el[raidlist->disks.entries].device,
|
---|
470 | devname);
|
---|
471 | raidlist->disks.el[raidlist->disks.entries].index =
|
---|
472 | raidlist->disks.entries;
|
---|
473 | raidlist->disks.entries++;
|
---|
474 | }
|
---|
475 | } else if (!strcmp(argv[0], "volume")) {
|
---|
476 | char *volname;
|
---|
477 | if (argc < 2)
|
---|
478 | continue;
|
---|
479 | volname = argv[1];
|
---|
480 | strcpy(raidlist->el[raidlist->entries].volname, volname);
|
---|
481 | raidlist->el[raidlist->entries].plexes = 0;
|
---|
482 | raidlist->entries++;
|
---|
483 | } else if (!strcmp(argv[0], "plex")) {
|
---|
484 | int raidlevel, stripesize;
|
---|
485 | char *org = 0;
|
---|
486 | char **tmp = 0;
|
---|
487 | if (argc < 3)
|
---|
488 | continue;
|
---|
489 | org = get_option_val(argc, argv, "org");
|
---|
490 | if (!org)
|
---|
491 | continue;
|
---|
492 | if (strcmp(org, "concat")) {
|
---|
493 | tmp = get_option_vals(argc, argv, "org", 2);
|
---|
494 | if (tmp && tmp[1]) {
|
---|
495 | stripesize = (int) (size_spec(tmp[1]) / 1024);
|
---|
496 | } else
|
---|
497 | stripesize = 279;
|
---|
498 | } else
|
---|
499 | stripesize = 0;
|
---|
500 |
|
---|
501 | if (!strcmp(org, "concat")) {
|
---|
502 | raidlevel = -1;
|
---|
503 | } else if (!strcmp(org, "striped")) {
|
---|
504 | raidlevel = 0;
|
---|
505 | } else if (!strcmp(org, "raid5")) {
|
---|
506 | raidlevel = 5;
|
---|
507 | } else
|
---|
508 | continue;
|
---|
509 |
|
---|
510 | raidlist->el[raidlist->entries - 1].plex
|
---|
511 | [raidlist->el[raidlist->entries - 1].plexes].raidlevel =
|
---|
512 | raidlevel;
|
---|
513 | raidlist->el[raidlist->entries -
|
---|
514 | 1].plex[raidlist->el[raidlist->entries -
|
---|
515 | 1].plexes].stripesize =
|
---|
516 | stripesize;
|
---|
517 | raidlist->el[raidlist->entries -
|
---|
518 | 1].plex[raidlist->el[raidlist->entries -
|
---|
519 | 1].plexes].subdisks = 0;
|
---|
520 | raidlist->el[raidlist->entries - 1].plexes++;
|
---|
521 | } else if ((!strcmp(argv[0], "sd"))
|
---|
522 | || (!strcmp(argv[0], "subdisk"))) {
|
---|
523 | char *drive = 0;
|
---|
524 | if (argc < 3)
|
---|
525 | continue;
|
---|
526 | drive = get_option_val(argc, argv, "drive");
|
---|
527 | if (!drive)
|
---|
528 | continue;
|
---|
529 |
|
---|
530 | strcpy(raidlist->el[raidlist->entries - 1].plex
|
---|
531 | [raidlist->el[raidlist->entries - 1].plexes - 1].sd
|
---|
532 | [raidlist->el[raidlist->entries - 1].plex
|
---|
533 | [raidlist->el[raidlist->entries - 1].plexes -
|
---|
534 | 1].subdisks].which_device, drive);
|
---|
535 | raidlist->el[raidlist->entries -
|
---|
536 | 1].plex[raidlist->el[raidlist->entries -
|
---|
537 | 1].plexes - 1].subdisks++;
|
---|
538 | }
|
---|
539 | }
|
---|
540 | fclose(fin);
|
---|
541 | log_it("Raidtab loaded successfully.");
|
---|
542 | asprintf(&tmp1, "%d RAID devices in raidtab", raidlist->entries);
|
---|
543 | log_it(tmp1);
|
---|
544 | paranoid_free(tmp1);
|
---|
545 | return (0);
|
---|
546 | }
|
---|
547 |
|
---|
548 |
|
---|
549 | #else
|
---|
550 |
|
---|
551 | int load_raidtab_into_raidlist(struct raidlist_itself *raidlist,
|
---|
552 | char *fname)
|
---|
553 | {
|
---|
554 | FILE *fin;
|
---|
555 | char *label;
|
---|
556 | char *value;
|
---|
557 | int items;
|
---|
558 | int v;
|
---|
559 |
|
---|
560 | assert(raidlist != NULL);
|
---|
561 | assert_string_is_neither_NULL_nor_zerolength(fname);
|
---|
562 |
|
---|
563 | if (length_of_file(fname) < 5) {
|
---|
564 | log_it("Raidtab is very small or non-existent. Ignoring it.");
|
---|
565 | raidlist->entries = 0;
|
---|
566 | return (0);
|
---|
567 | }
|
---|
568 | if (!(fin = fopen(fname, "r"))) {
|
---|
569 | log_it("Cannot open raidtab");
|
---|
570 | return (1);
|
---|
571 | }
|
---|
572 | items = 0;
|
---|
573 | log_it("Loading raidtab...");
|
---|
574 | malloc_string(label);
|
---|
575 | malloc_string(value);
|
---|
576 | get_next_raidtab_line(fin, label, value);
|
---|
577 | while (!feof(fin)) {
|
---|
578 | log_msg(1, "Looking for raid record #%d", items);
|
---|
579 | initialize_raidrec(&raidlist->el[items]);
|
---|
580 | v = 0;
|
---|
581 | /* find the 'raiddev' entry, indicating the start of the block of info */
|
---|
582 | while (!feof(fin) && strcmp(label, "raiddev")) {
|
---|
583 | strcpy(raidlist->el[items].additional_vars.el[v].label, label);
|
---|
584 | strcpy(raidlist->el[items].additional_vars.el[v].value, value);
|
---|
585 | v++;
|
---|
586 | get_next_raidtab_line(fin, label, value);
|
---|
587 | }
|
---|
588 | raidlist->el[items].additional_vars.entries = v;
|
---|
589 | if (feof(fin)) {
|
---|
590 | log_msg(1, "No more records.");
|
---|
591 | continue;
|
---|
592 | }
|
---|
593 | log_msg(2, "Record #%d (%s) found", items, value);
|
---|
594 | strcpy(raidlist->el[items].raid_device, value);
|
---|
595 | for (get_next_raidtab_line(fin, label, value);
|
---|
596 | !feof(fin) && strcmp(label, "raiddev");
|
---|
597 | get_next_raidtab_line(fin, label, value)) {
|
---|
598 | process_raidtab_line(fin, &raidlist->el[items], label, value);
|
---|
599 | }
|
---|
600 | items++;
|
---|
601 | }
|
---|
602 | paranoid_fclose(fin);
|
---|
603 | raidlist->entries = items;
|
---|
604 | log_msg(1, "Raidtab loaded successfully.");
|
---|
605 | log_msg(1, "%d RAID devices in raidtab", items);
|
---|
606 | paranoid_free(label);
|
---|
607 | paranoid_free(value);
|
---|
608 | return (0);
|
---|
609 | }
|
---|
610 | #endif
|
---|
611 |
|
---|
612 |
|
---|
613 | #ifndef __FreeBSD__
|
---|
614 | /**
|
---|
615 | * Process a single line from the raidtab and store the results into @p raidrec.
|
---|
616 | * @param fin The stream to read the line from.
|
---|
617 | * @param raidrec The RAID device record to update.
|
---|
618 | * @param label Where to put the label processed.
|
---|
619 | * @param value Where to put the value processed.
|
---|
620 | */
|
---|
621 | void
|
---|
622 | process_raidtab_line(FILE * fin,
|
---|
623 | struct raid_device_record *raidrec,
|
---|
624 | char *label, char *value)
|
---|
625 | {
|
---|
626 |
|
---|
627 | /*@ add mallocs * */
|
---|
628 | char *tmp;
|
---|
629 | char *labelB;
|
---|
630 | char *valueB;
|
---|
631 |
|
---|
632 | struct list_of_disks *disklist;
|
---|
633 | int index;
|
---|
634 | int v;
|
---|
635 |
|
---|
636 | malloc_string(labelB);
|
---|
637 | malloc_string(valueB);
|
---|
638 | assert(fin != NULL);
|
---|
639 | assert(raidrec != NULL);
|
---|
640 | assert_string_is_neither_NULL_nor_zerolength(label);
|
---|
641 | assert(value != NULL);
|
---|
642 |
|
---|
643 | if (!strcmp(label, "raid-level")) {
|
---|
644 | if (!strcmp(value, "linear")) {
|
---|
645 | raidrec->raid_level = -1;
|
---|
646 | } else {
|
---|
647 | raidrec->raid_level = atoi(value);
|
---|
648 | }
|
---|
649 | } else if (!strcmp(label, "nr-raid-disks")) { /* ignore it */
|
---|
650 | } else if (!strcmp(label, "nr-spare-disks")) { /* ignore it */
|
---|
651 | } else if (!strcmp(label, "nr-parity-disks")) { /* ignore it */
|
---|
652 | } else if (!strcmp(label, "nr-failed-disks")) { /* ignore it */
|
---|
653 | } else if (!strcmp(label, "persistent-superblock")) {
|
---|
654 | raidrec->persistent_superblock = atoi(value);
|
---|
655 | } else if (!strcmp(label, "chunk-size")) {
|
---|
656 | raidrec->chunk_size = atoi(value);
|
---|
657 | } else if (!strcmp(label, "device")) {
|
---|
658 | get_next_raidtab_line(fin, labelB, valueB);
|
---|
659 | if (!strcmp(labelB, "raid-disk")) {
|
---|
660 | disklist = &raidrec->data_disks;
|
---|
661 | } else if (!strcmp(labelB, "spare-disk")) {
|
---|
662 | disklist = &raidrec->spare_disks;
|
---|
663 | } else if (!strcmp(labelB, "parity-disk")) {
|
---|
664 | disklist = &raidrec->parity_disks;
|
---|
665 | } else if (!strcmp(labelB, "failed-disk")) {
|
---|
666 | disklist = &raidrec->failed_disks;
|
---|
667 | } else {
|
---|
668 | disklist = NULL;
|
---|
669 | }
|
---|
670 | if (!disklist) {
|
---|
671 | asprintf(&tmp,
|
---|
672 | "Ignoring '%s %s' pair of disk %s", labelB, valueB,
|
---|
673 | label);
|
---|
674 | log_it(tmp);
|
---|
675 | paranoid_free(tmp);
|
---|
676 | } else {
|
---|
677 | index = atoi(valueB);
|
---|
678 | add_disk_to_raid_device(disklist, value, index);
|
---|
679 | }
|
---|
680 | } else {
|
---|
681 | v = raidrec->additional_vars.entries;
|
---|
682 | strcpy(raidrec->additional_vars.el[v].label, label);
|
---|
683 | strcpy(raidrec->additional_vars.el[v].value, value);
|
---|
684 | raidrec->additional_vars.entries = ++v;
|
---|
685 | }
|
---|
686 | paranoid_free(labelB);
|
---|
687 | paranoid_free(valueB);
|
---|
688 | }
|
---|
689 | #endif
|
---|
690 |
|
---|
691 |
|
---|
692 | /**
|
---|
693 | * Save a disklist to a stream in raidtab format.
|
---|
694 | * @param listname One of "raid-disk", "spare-disk", "parity-disk", or "failed-disk".
|
---|
695 | * @param disklist The disklist to save to @p fout.
|
---|
696 | * @param fout The stream to write to.
|
---|
697 | */
|
---|
698 | void
|
---|
699 | save_disklist_to_file(char *listname,
|
---|
700 | struct list_of_disks *disklist, FILE * fout)
|
---|
701 | {
|
---|
702 | int i;
|
---|
703 |
|
---|
704 | assert_string_is_neither_NULL_nor_zerolength(listname);
|
---|
705 | assert(disklist != NULL);
|
---|
706 | assert(fout != NULL);
|
---|
707 |
|
---|
708 | for (i = 0; i < disklist->entries; i++) {
|
---|
709 | fprintf(fout, " device %s\n",
|
---|
710 | disklist->el[i].device);
|
---|
711 | fprintf(fout, " %-21s %d\n", listname, disklist->el[i].index);
|
---|
712 | }
|
---|
713 | }
|
---|
714 |
|
---|
715 |
|
---|
716 | #ifdef __FreeBSD__
|
---|
717 | /**
|
---|
718 | * Add a new plex to a volume. The index of the plex will be <tt>v-\>plexes - 1</tt>.
|
---|
719 | * @param v The volume to operate on.
|
---|
720 | * @param raidlevel The RAID level of the new plex.
|
---|
721 | * @param stripesize The stripe size (chunk size) of the new plex.
|
---|
722 | */
|
---|
723 | void add_plex_to_volume(struct vinum_volume *v, int raidlevel,
|
---|
724 | int stripesize)
|
---|
725 | {
|
---|
726 | v->plex[v->plexes].raidlevel = raidlevel;
|
---|
727 | v->plex[v->plexes].stripesize = stripesize;
|
---|
728 | v->plex[v->plexes].subdisks = 0;
|
---|
729 | ++v->plexes;
|
---|
730 | }
|
---|
731 |
|
---|
732 | /**
|
---|
733 | * For internal use only.
|
---|
734 | */
|
---|
735 | char **get_next_vinum_conf_line(FILE * f, int *argc)
|
---|
736 | {
|
---|
737 | int cnt = 0;
|
---|
738 | static char *argv[64];
|
---|
739 | char **ap;
|
---|
740 | char *line = (char *) malloc(MAX_STR_LEN);
|
---|
741 | if (!line)
|
---|
742 | errx(1,
|
---|
743 | "unable to allocate %i bytes of memory for `char *line' at %s:%i",
|
---|
744 | MAX_STR_LEN, __FILE__, __LINE__);
|
---|
745 | (void) fgets(line, MAX_STR_LEN, f);
|
---|
746 | if (feof(f)) {
|
---|
747 | log_it("[GNVCL] Uh... I reached the EOF.");
|
---|
748 | return 0;
|
---|
749 | }
|
---|
750 |
|
---|
751 | for (ap = argv; (*ap = strsep(&line, " \t")) != NULL;)
|
---|
752 | if (**ap != '\0') {
|
---|
753 | if (++ap >= &argv[64])
|
---|
754 | break;
|
---|
755 | cnt++;
|
---|
756 | }
|
---|
757 |
|
---|
758 | if (strchr(argv[cnt - 1], '\n')) {
|
---|
759 | *(strchr(argv[cnt - 1], '\n')) = '\0';
|
---|
760 | }
|
---|
761 |
|
---|
762 | if (argc)
|
---|
763 | *argc = cnt;
|
---|
764 | return argv;
|
---|
765 | }
|
---|
766 |
|
---|
767 | /**
|
---|
768 | * For internal use only.
|
---|
769 | */
|
---|
770 | char *get_option_val(int argc, char **argv, char *option)
|
---|
771 | {
|
---|
772 | int i;
|
---|
773 | for (i = 0; i < (argc - 1); ++i) {
|
---|
774 | if (!strcmp(argv[i], option)) {
|
---|
775 | return argv[i + 1];
|
---|
776 | }
|
---|
777 | }
|
---|
778 | return 0;
|
---|
779 | }
|
---|
780 |
|
---|
781 | /**
|
---|
782 | * For internal use only.
|
---|
783 | */
|
---|
784 | char **get_option_vals(int argc, char **argv, char *option, int nval)
|
---|
785 | {
|
---|
786 | int i, j;
|
---|
787 | static char **ret;
|
---|
788 | ret = (char **) malloc(nval * sizeof(char *));
|
---|
789 | for (i = 0; i < (argc - nval); ++i) {
|
---|
790 | if (!strcmp(argv[i], option)) {
|
---|
791 | for (j = 0; j < nval; ++j) {
|
---|
792 | ret[j] = (char *) malloc(strlen(argv[i + j + 1]) + 1);
|
---|
793 | strcpy(ret[j], argv[i + j + 1]);
|
---|
794 | }
|
---|
795 | return ret;
|
---|
796 | }
|
---|
797 | }
|
---|
798 | return 0;
|
---|
799 | }
|
---|
800 |
|
---|
801 | /**
|
---|
802 | * For internal use only.
|
---|
803 | */
|
---|
804 | bool get_option_state(int argc, char **argv, char *option)
|
---|
805 | {
|
---|
806 | int i;
|
---|
807 | for (i = 0; i < argc; ++i)
|
---|
808 | if (!strcmp(argv[i], option))
|
---|
809 | return TRUE;
|
---|
810 |
|
---|
811 | return FALSE;
|
---|
812 | }
|
---|
813 |
|
---|
814 | /**
|
---|
815 | * Taken from Vinum source -- for internal use only.
|
---|
816 | */
|
---|
817 | long long size_spec(char *spec)
|
---|
818 | {
|
---|
819 | u_int64_t size;
|
---|
820 | char *s;
|
---|
821 | int sign = 1; /* -1 if negative */
|
---|
822 |
|
---|
823 | size = 0;
|
---|
824 | if (spec != NULL) { /* we have a parameter */
|
---|
825 | s = spec;
|
---|
826 | if (*s == '-') { /* negative, */
|
---|
827 | sign = -1;
|
---|
828 | s++; /* skip */
|
---|
829 | }
|
---|
830 | if ((*s >= '0') && (*s <= '9')) { /* it's numeric */
|
---|
831 | while ((*s >= '0') && (*s <= '9')) /* it's numeric */
|
---|
832 | size = size * 10 + *s++ - '0'; /* convert it */
|
---|
833 | switch (*s) {
|
---|
834 | case '\0':
|
---|
835 | return size * sign;
|
---|
836 |
|
---|
837 | case 'B':
|
---|
838 | case 'b':
|
---|
839 | case 'S':
|
---|
840 | case 's':
|
---|
841 | return size * sign * 512;
|
---|
842 |
|
---|
843 | case 'K':
|
---|
844 | case 'k':
|
---|
845 | return size * sign * 1024;
|
---|
846 |
|
---|
847 | case 'M':
|
---|
848 | case 'm':
|
---|
849 | return size * sign * 1024 * 1024;
|
---|
850 |
|
---|
851 | case 'G':
|
---|
852 | case 'g':
|
---|
853 | return size * sign * 1024 * 1024 * 1024;
|
---|
854 |
|
---|
855 | case 'T':
|
---|
856 | case 't':
|
---|
857 | log_it
|
---|
858 | ("Ok, I'm scared... Someone did a TERABYTE+ size-spec");
|
---|
859 | return size * sign * 1024 * 1024 * 1024 * 1024;
|
---|
860 |
|
---|
861 | case 'P':
|
---|
862 | case 'p':
|
---|
863 | log_it
|
---|
864 | ("If I was scared last time, I'm freaked out now. Someone actually has a PETABYTE?!?!?!?!");
|
---|
865 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024;
|
---|
866 |
|
---|
867 | case 'E':
|
---|
868 | case 'e':
|
---|
869 | log_it
|
---|
870 | ("Okay, I'm REALLY freaked out. Who could devote a whole EXABYTE to their data?!?!");
|
---|
871 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
872 | 1024;
|
---|
873 |
|
---|
874 | case 'Z':
|
---|
875 | case 'z':
|
---|
876 | log_it
|
---|
877 | ("WHAT!?!? A ZETABYTE!?!? You've GOT to be kidding me!!!");
|
---|
878 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
879 | 1024 * 1024;
|
---|
880 |
|
---|
881 | case 'Y':
|
---|
882 | case 'y':
|
---|
883 | log_it
|
---|
884 | ("Oh my gosh. You actually think a YOTTABYTE will get you anywhere? What're you going to do with 1,208,925,819,614,629,174,706,176 bytes?!?!");
|
---|
885 | popup_and_OK
|
---|
886 | (_("That sizespec is more than 1,208,925,819,614,629,174,706,176 bytes. You have a shocking amount of data. Please send a screenshot to the list :-)"));
|
---|
887 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
888 | 1024 * 1024 * 1024;
|
---|
889 | }
|
---|
890 | }
|
---|
891 | }
|
---|
892 | return size * sign;
|
---|
893 | }
|
---|
894 |
|
---|
895 | #endif
|
---|
896 |
|
---|
897 |
|
---|
898 |
|
---|
899 |
|
---|
900 | int read_mdstat(struct s_mdstat *mdstat, char *mdstat_file)
|
---|
901 | {
|
---|
902 | FILE *fin;
|
---|
903 | char *tmp;
|
---|
904 | char *stub;
|
---|
905 | char *incoming = NULL;
|
---|
906 | char *p, *q, *r;
|
---|
907 | int diskno;
|
---|
908 | size_t n = 0;
|
---|
909 |
|
---|
910 | malloc_string(incoming);
|
---|
911 | if (!(fin = fopen(mdstat_file, "r"))) {
|
---|
912 | log_msg(1, "%s not found", mdstat_file);
|
---|
913 | return (1);
|
---|
914 | }
|
---|
915 | mdstat->entries = 0;
|
---|
916 | for (getline(&incoming, &n, fin); !feof(fin);
|
---|
917 | getline(&incoming, &n, fin)) {
|
---|
918 | p = incoming;
|
---|
919 | if (*p != 'm' && *(p + 1) == 'm') {
|
---|
920 | p++;
|
---|
921 | }
|
---|
922 | if (strncmp(p, "md", 2)) {
|
---|
923 | continue;
|
---|
924 | }
|
---|
925 | // read first line --- mdN : active raidX ............
|
---|
926 | mdstat->el[mdstat->entries].md = atoi(p + 2);
|
---|
927 | log_msg(8, "Storing /dev/md%d's info", atoi(p + 2));
|
---|
928 | while (*p != ':' && *p) {
|
---|
929 | p++;
|
---|
930 | }
|
---|
931 | while ((*p != 'r' || *(p + 1) != 'a') && *p) {
|
---|
932 | p++;
|
---|
933 | }
|
---|
934 | if (!strncmp(p, "raid", 4)) {
|
---|
935 | mdstat->el[mdstat->entries].raidlevel = *(p + 4) - '0';
|
---|
936 | }
|
---|
937 | p += 4;
|
---|
938 | while (*p != ' ' && *p) {
|
---|
939 | p++;
|
---|
940 | }
|
---|
941 | while (*p == ' ' && *p) {
|
---|
942 | p++;
|
---|
943 | }
|
---|
944 | for (diskno = 0; *p; diskno++) {
|
---|
945 | asprintf(&stub, "%s", p);
|
---|
946 | q = strchr(stub, '[');
|
---|
947 | if (q) {
|
---|
948 | *q = '\0';
|
---|
949 | q++;
|
---|
950 | r = strchr(q, ']');
|
---|
951 | if (r) {
|
---|
952 | *r = '\0';
|
---|
953 | }
|
---|
954 | mdstat->el[mdstat->entries].disks.el[diskno].index =
|
---|
955 | atoi(q);
|
---|
956 | } else {
|
---|
957 | mdstat->el[mdstat->entries].disks.el[diskno].index = -1;
|
---|
958 | q = strchr(stub, ' ');
|
---|
959 | if (q) {
|
---|
960 | *q = '\0';
|
---|
961 | }
|
---|
962 | }
|
---|
963 | asprintf(&tmp, "/dev/%s", stub);
|
---|
964 | paranoid_free(stub);
|
---|
965 |
|
---|
966 | log_msg(8, "/dev/md%d : disk#%d : %s (%d)",
|
---|
967 | mdstat->el[mdstat->entries].md, diskno, tmp,
|
---|
968 | mdstat->el[mdstat->entries].disks.el[diskno].index);
|
---|
969 | strcpy(mdstat->el[mdstat->entries].disks.el[diskno].device,
|
---|
970 | tmp);
|
---|
971 | paranoid_free(tmp);
|
---|
972 |
|
---|
973 | while (*p != ' ' && *p) {
|
---|
974 | p++;
|
---|
975 | }
|
---|
976 | while (*p == ' ' && *p) {
|
---|
977 | p++;
|
---|
978 | }
|
---|
979 | }
|
---|
980 | mdstat->el[mdstat->entries].disks.entries = diskno;
|
---|
981 | // next line --- skip it
|
---|
982 | if (!feof(fin)) {
|
---|
983 | getline(&incoming, &n, fin);
|
---|
984 | } else {
|
---|
985 | continue;
|
---|
986 | }
|
---|
987 | // next line --- the 'progress' line
|
---|
988 | if (!feof(fin)) {
|
---|
989 | getline(&incoming, &n, fin);
|
---|
990 | } else {
|
---|
991 | continue;
|
---|
992 | }
|
---|
993 | // log_msg(1, "Percentage line = '%s'", incoming);
|
---|
994 | if (!(p = strchr(incoming, '\%'))) {
|
---|
995 | mdstat->el[mdstat->entries].progress = 999; // not found
|
---|
996 | } else if (strstr(incoming, "DELAYED")) {
|
---|
997 | mdstat->el[mdstat->entries].progress = -1; // delayed (therefore, stuck at 0%)
|
---|
998 | } else {
|
---|
999 | for (*p = '\0'; *p != ' '; p--);
|
---|
1000 | mdstat->el[mdstat->entries].progress = atoi(p);
|
---|
1001 | }
|
---|
1002 | log_msg(8, "progress =%d", mdstat->el[mdstat->entries].progress);
|
---|
1003 | mdstat->entries++;
|
---|
1004 | }
|
---|
1005 | fclose(fin);
|
---|
1006 | paranoid_free(incoming);
|
---|
1007 | return (0);
|
---|
1008 | }
|
---|
1009 |
|
---|
1010 |
|
---|
1011 |
|
---|
1012 | int create_raidtab_from_mdstat(char *raidtab_fname, char *mdstat_fname)
|
---|
1013 | {
|
---|
1014 | struct raidlist_itself *raidlist;
|
---|
1015 | struct s_mdstat *mdstat;
|
---|
1016 | int retval = 0;
|
---|
1017 | int i;
|
---|
1018 |
|
---|
1019 | raidlist = malloc(sizeof(struct raidlist_itself));
|
---|
1020 | mdstat = malloc(sizeof(struct s_mdstat));
|
---|
1021 |
|
---|
1022 | if (read_mdstat(mdstat, mdstat_fname)) {
|
---|
1023 | log_to_screen("Sorry, cannot read %s", mdstat_fname);
|
---|
1024 | return (1);
|
---|
1025 | }
|
---|
1026 |
|
---|
1027 | for (i = 0; i < mdstat->entries; i++) {
|
---|
1028 | sprintf(raidlist->el[i].raid_device, "/dev/md%d",
|
---|
1029 | mdstat->el[i].md);
|
---|
1030 | raidlist->el[i].raid_level = mdstat->el[i].raidlevel;
|
---|
1031 | raidlist->el[i].persistent_superblock = 1;
|
---|
1032 | raidlist->el[i].chunk_size = 4;
|
---|
1033 | memcpy((void *) &raidlist->el[i].data_disks,
|
---|
1034 | (void *) &mdstat->el[i].disks,
|
---|
1035 | sizeof(struct list_of_disks));
|
---|
1036 | // FIXME --- the above line does not allow for spare disks
|
---|
1037 | log_to_screen
|
---|
1038 | (_("FIXME - create_raidtab_from_mdstat does not allow for spare disks"));
|
---|
1039 | }
|
---|
1040 | raidlist->entries = i;
|
---|
1041 | retval += save_raidlist_to_raidtab(raidlist, raidtab_fname);
|
---|
1042 | return (retval);
|
---|
1043 | }
|
---|
1044 |
|
---|
1045 |
|
---|
1046 | /* @} - end of raidGroup */
|
---|