1 | /* libmondo-raid.c subroutines for handling RAID
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2 | $Id: libmondo-raid.c 273 2006-01-03 15:09:12Z bcornec $
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3 | .
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4 |
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5 |
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6 | 06/29
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7 | - added create_raidtab_from_mdstat()
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8 | - changed char[MAX_STR_LEN] to char*
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9 |
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10 | 10/21/2003
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11 | - get_next_raidtab_line() --- correctly handle multiple spaces
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12 | between label and value
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13 |
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14 | 07/03
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15 | - line 447 - changed assert()
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16 |
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17 | 05/08
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18 | - cleaned up some FreeBSd-specific stuff
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19 |
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20 | 05/05
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21 | - added Joshua Oreman's FreeBSD patches
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22 |
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23 | 04/25
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24 | - added a bunch of RAID utilities from mondorestore/mondo-restore.c
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25 |
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26 | 04/24/2003
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27 | - added some assert()'s and log_OS_error()'s
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28 |
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29 | 10/19/2002
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30 | - added some comments
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31 |
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32 | 07/24
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33 | - created
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34 | */
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35 |
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36 |
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37 | /**
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38 | * @file
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39 | * Functions for handling RAID (especially during restore).
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40 | */
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41 |
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42 | #include "my-stuff.h"
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43 | #include "mondostructures.h"
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44 | #include "libmondo-gui-EXT.h"
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45 | #include "libmondo-files-EXT.h"
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46 | #include "libmondo-tools-EXT.h"
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47 | #include "libmondo-string-EXT.h"
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48 | #include "lib-common-externs.h"
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49 | #include "libmondo-raid.h"
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50 |
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51 | #ifdef __FreeBSD__
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52 | /* Nonstandard library functions: */
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53 | extern void errx(int exitval, const char *fmt, ...);
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54 | extern char *strsep(char **stringp, const char *delim);
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55 | #endif
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56 |
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57 | /*@unused@*/
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58 | //static char cvsid[] = "$Id: libmondo-raid.c 273 2006-01-03 15:09:12Z bcornec $";
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59 |
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60 |
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61 | /**
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62 | * @addtogroup raidGroup
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63 | * @{
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64 | */
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65 | /**
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66 | * See if a particular RAID level is supported by the kernel.
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67 | * @param raidno The RAID level (-1 through 5) to check. -1 means "linear" under Linux and
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68 | * "concatenated" under FreeBSD. It's really the same thing, just different wording.
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69 | * @return TRUE if it's supported, FALSE if not.
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70 | */
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71 | bool is_this_raid_personality_registered(int raidno)
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72 | {
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73 | #ifdef __FreeBSD__
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74 | return ((raidno == -1) || (raidno == 0) || (raidno == 1)
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75 | || (raidno == 5)) ? TRUE : FALSE;
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76 | #else
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77 | /*@ buffer ********************************************************** */
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78 | char *command;
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79 | int res;
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80 |
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81 | command = malloc(MAX_STR_LEN * 2);
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82 | strcpy(command, "grep \" /proc/mdstat");
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83 | if (raidno == -1) {
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84 | strcat(command, "linear");
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85 | } else {
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86 | sprintf(command + strlen(command), "raid%d", raidno);
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87 | }
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88 | strcat(command, "\" > /dev/null 2> /dev/null");
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89 | log_it("Is raid %d registered? Command = '%s'", raidno, command);
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90 | res = system(command);
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91 | paranoid_free(command);
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92 | if (res) {
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93 | return (FALSE);
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94 | } else {
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95 | return (TRUE);
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96 | }
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97 | #endif
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98 | }
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99 |
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100 |
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101 |
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102 |
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103 |
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104 |
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105 | /**
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106 | * Search for @p device in @p disklist.
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107 | * @param disklist The disklist to search in.
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108 | * @param device The device to search for.
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109 | * @return The index number of @p device, or -1 if it does not exist.
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110 | */
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111 | int
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112 | where_in_drivelist_is_drive(struct list_of_disks *disklist, char *device)
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113 | {
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114 |
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115 | /*@ int ************************************************************* */
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116 | int i = 0;
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117 |
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118 | assert(disklist != NULL);
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119 | assert_string_is_neither_NULL_nor_zerolength(device);
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120 |
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121 | for (i = 0; i < disklist->entries; i++) {
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122 | if (!strcmp(disklist->el[i].device, device)) {
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123 | break;
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124 | }
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125 | }
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126 | if (i == disklist->entries) {
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127 | return (-1);
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128 | } else {
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129 | return (i);
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130 | }
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131 | }
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132 |
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133 |
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134 |
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135 |
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136 |
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137 |
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138 |
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139 |
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140 | /**
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141 | * Determine which RAID device is using a particular partition.
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142 | * @param raidlist The RAID information structure.
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143 | * @param device The partition to find out about.
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144 | * @return The index number of the RAID device using @p device, or -1 if there is none.
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145 | */
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146 | int
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147 | which_raid_device_is_using_this_partition(struct raidlist_itself *raidlist,
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148 | char *device)
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149 | {
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150 | #ifdef __FreeBSD__
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151 | // FreeBSD-specific version of which_raid_device_is_using_this_partition()
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152 | /*@ int ********************************************************* */
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153 | int i = 0;
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154 |
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155 | for (i = 0; i < raidlist->entries; i++) {
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156 | bool thisone = FALSE;
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157 | int j, k, l;
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158 |
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159 | for (j = 0; j < raidlist->el[i].plexes; ++j) {
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160 | for (k = 0; k < raidlist->el[i].plex[j].subdisks; ++k) {
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161 | for (l = 0; l < raidlist->disks.entries; ++l) {
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162 | if (!strcmp(raidlist->disks.el[l].device,
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163 | device) &&
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164 | !strcmp(raidlist->el[i].plex[j].sd[k].which_device,
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165 | raidlist->disks.el[l].name))
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166 | thisone = TRUE;
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167 | }
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168 | }
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169 | }
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170 |
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171 | if (thisone) {
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172 | break;
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173 | }
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174 | }
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175 | if (i == raidlist->entries) {
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176 | return (-1);
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177 | } else {
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178 | return (i);
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179 | }
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180 | }
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181 |
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182 | #else
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183 | // Linux-specific version of which_raid_device_is_using_this_partition()
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184 | // and one other function which FreeBSD doesn't use
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185 |
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186 | int current_raiddev = 0;
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187 |
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188 | assert_string_is_neither_NULL_nor_zerolength(device);
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189 | assert(raidlist != NULL);
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190 |
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191 | for (current_raiddev = 0; current_raiddev < raidlist->entries;
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192 | current_raiddev++) {
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193 | if (where_in_drivelist_is_drive
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194 | (&raidlist->el[current_raiddev].data_disks, device) >= 0
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195 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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196 | spare_disks, device) >= 0
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197 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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198 | parity_disks, device) >= 0
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199 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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200 | failed_disks, device) >= 0) {
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201 | break;
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202 | }
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203 | }
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204 | if (current_raiddev == raidlist->entries) {
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205 | return (-1);
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206 | } else {
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207 | return (current_raiddev);
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208 | }
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209 | }
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210 |
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211 | /**
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212 | * Write an @c int variable to a list of RAID variables.
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213 | * @param raidrec The RAID device record to write to.
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214 | * @param lino The variable index number to modify/create.
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215 | * @param label The label to write.
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216 | * @param value The value to write.
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217 | */
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218 | void
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219 | write_variableINT_to_raid_var_line(struct raid_device_record *raidrec,
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220 | int lino, char *label, int value)
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221 | {
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222 | /*@ buffers ***************************************************** */
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223 | char *sz_value;
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224 |
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225 | malloc_string(sz_value);
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226 | assert(raidrec != NULL);
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227 | assert(label != NULL);
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228 |
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229 | sprintf(sz_value, "%d", value);
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230 | strcpy(raidrec->additional_vars.el[lino].label, label);
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231 | strcpy(raidrec->additional_vars.el[lino].value, sz_value);
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232 | paranoid_free(sz_value);
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233 | }
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234 | #endif
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235 |
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236 |
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237 |
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238 |
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239 |
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240 |
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241 |
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242 |
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243 | #ifdef __FreeBSD__
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244 | /**
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245 | * Add a disk to a RAID plex.
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246 | * @param p The plex to add the device to.
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247 | * @param device_to_add The device to add to @p p.
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248 | */
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249 | void add_disk_to_raid_device(struct vinum_plex *p, char *device_to_add)
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250 | {
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251 | strcpy(p->sd[p->subdisks].which_device, device_to_add);
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252 | ++p->subdisks;
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253 |
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254 | }
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255 | #else
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256 | /**
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257 | * Add a disk to a RAID device.
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258 | * @param disklist The disklist to add the device to.
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259 | * @param device_to_add The device to add to @p disklist.
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260 | * @param index The index number of the disklist entry we're creating.
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261 | */
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262 | void add_disk_to_raid_device(struct list_of_disks *disklist,
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263 | char *device_to_add, int index)
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264 | {
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265 | int items;
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266 |
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267 | assert(disklist != NULL);
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268 | assert_string_is_neither_NULL_nor_zerolength(device_to_add);
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269 | items = disklist->entries;
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270 | strcpy(disklist->el[items].device, device_to_add);
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271 | disklist->el[items].index = index;
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272 | items++;
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273 | disklist->entries = items;
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274 | }
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275 | #endif
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276 |
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277 |
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278 | /**
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279 | * Save the additional RAID variables to a stream.
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280 | * @param vars The RAID variable list to save.
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281 | * @param fout The FILE pointer to save them to.
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282 | */
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283 | void
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284 | save_additional_vars_to_file(struct additional_raid_variables *vars,
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285 | FILE * fout)
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286 | {
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287 | int i;
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288 |
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289 | assert(vars != NULL);
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290 | assert(fout != NULL);
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291 |
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292 | for (i = 0; i < vars->entries; i++) {
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293 | fprintf(fout, " %-21s %s\n", vars->el[i].label,
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294 | vars->el[i].value);
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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 | /**
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300 | * Save a raidlist structure to disk in raidtab format.
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301 | * @param raidlist The raidlist to save.
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302 | * @param fname The file to save it to.
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303 | * @return 0, always.
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304 | * @bug Return value is redundant.
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305 | */
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306 | int save_raidlist_to_raidtab(struct raidlist_itself *raidlist, char *fname)
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307 | {
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308 | FILE *fout;
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309 | int current_raid_device;
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310 | #ifdef __FreeBSD__
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311 | int i;
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312 | #else
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313 | // Linux
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314 | #endif
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315 |
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316 | assert(raidlist != NULL);
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317 | assert_string_is_neither_NULL_nor_zerolength(fname);
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318 |
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319 | if (raidlist->entries <= 0) {
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320 | unlink(fname);
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321 | log_it("Deleting raidtab (no RAID devs anyway)");
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322 | return (0);
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323 | }
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324 | if (!(fout = fopen(fname, "w"))) {
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325 | log_OS_error("Failed to save raidlist");
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326 | return (1);
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327 | }
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328 | fprintf(fout, "# Generated by Mondo Rescue\n");
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329 |
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330 | #ifdef __FreeBSD__
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331 | for (i = 0; i < raidlist->disks.entries; ++i) {
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332 | fprintf(fout, "drive %s device %s\n", raidlist->disks.el[i].name,
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333 | raidlist->disks.el[i].device);
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334 | }
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335 | for (i = 0; i < (raidlist->spares.entries); ++i) {
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336 | fprintf(fout, "drive %s device %s hotspare\n",
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337 | raidlist->spares.el[i].name,
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338 | raidlist->spares.el[i].device);
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339 | }
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340 | #endif
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341 |
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342 | for (current_raid_device = 0; current_raid_device < raidlist->entries;
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343 | current_raid_device++) {
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344 | save_raidrec_to_file(&raidlist->el[current_raid_device], fout);
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345 | }
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346 | paranoid_fclose(fout);
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347 | return (0);
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348 | }
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349 |
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350 |
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351 | /**
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352 | * Save an individual RAID device record to a stream.
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353 | * @param raidrec The RAID device record to save.
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354 | * @param fout The stream to save it to.
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355 | */
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356 | void save_raidrec_to_file(struct
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357 | #ifdef __FreeBSD__
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358 | vinum_volume
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359 | #else
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360 | raid_device_record
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361 | #endif
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362 | * raidrec, FILE * fout)
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363 | {
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364 | #ifdef __FreeBSD__
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365 | int i, j;
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366 |
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367 | fprintf(fout, "\nvolume %s\n", raidrec->volname);
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368 | for (i = 0; i < raidrec->plexes; ++i) {
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369 | char org[24];
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370 | switch (raidrec->plex[i].raidlevel) {
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371 | case -1:
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372 | strcpy(org, "concat");
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373 | break;
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374 | case 0:
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375 | strcpy(org, "striped");
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376 | break;
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377 | case 5:
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378 | strcpy(org, "raid5");
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379 | break;
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380 | }
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381 | fprintf(fout, " plex org %s", org);
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382 | if (raidrec->plex[i].raidlevel != -1) {
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383 | fprintf(fout, " %ik", raidrec->plex[i].stripesize);
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384 | }
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385 | fprintf(fout, "\n");
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386 |
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387 | for (j = 0; j < raidrec->plex[i].subdisks; ++j) {
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388 | fprintf(fout, " sd drive %s size 0\n",
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389 | raidrec->plex[i].sd[j].which_device);
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390 | }
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391 | }
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392 | #else
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393 | assert(raidrec != NULL);
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394 | assert(fout != NULL);
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395 |
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396 | fprintf(fout, "raiddev %s\n", raidrec->raid_device);
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397 | if (raidrec->raid_level == -1) {
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398 | fprintf(fout, " raid-level linear\n");
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399 | } else {
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400 | fprintf(fout, " raid-level %d\n",
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401 | raidrec->raid_level);
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402 | }
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403 | fprintf(fout, " chunk-size %d\n", raidrec->chunk_size);
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404 | fprintf(fout, " nr-raid-disks %d\n",
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405 | raidrec->data_disks.entries);
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406 | fprintf(fout, " nr-spare-disks %d\n",
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407 | raidrec->spare_disks.entries);
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408 | if (raidrec->parity_disks.entries > 0) {
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409 | fprintf(fout, " nr-parity-disks %d\n",
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410 | raidrec->parity_disks.entries);
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411 | }
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412 |
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413 | fprintf(fout, " persistent-superblock %d\n",
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414 | raidrec->persistent_superblock);
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415 | save_additional_vars_to_file(&raidrec->additional_vars, fout);
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416 | fprintf(fout, "\n");
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417 | save_disklist_to_file("raid-disk", &raidrec->data_disks, fout);
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418 | save_disklist_to_file("spare-disk", &raidrec->spare_disks, fout);
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419 | save_disklist_to_file("parity-disk", &raidrec->parity_disks, fout);
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420 | save_disklist_to_file("failed-disk", &raidrec->failed_disks, fout);
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421 | fprintf(fout, "\n");
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422 | #endif
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423 | }
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424 |
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425 | /**
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426 | * Retrieve the next line from a raidtab stream.
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427 | * @param fin The file to read the input from.
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428 | * @param label Where to put the line's label.
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429 | * @param value Where to put the line's value.
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430 | * @return 0 if the line was read and stored successfully, 1 if we're at end of file.
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431 | */
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432 | int get_next_raidtab_line(FILE * fin, char *label, char *value)
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433 | {
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434 | char *incoming;
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435 | char *p;
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436 |
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437 | malloc_string(incoming);
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438 | assert(fin != NULL);
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439 | assert(label != NULL);
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440 | assert(value != NULL);
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441 |
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442 | label[0] = value[0] = '\0';
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443 | if (feof(fin)) {
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444 | paranoid_free(incoming);
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445 | return (1);
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446 | }
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447 | for (fgets(incoming, MAX_STR_LEN - 1, fin); !feof(fin);
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448 | fgets(incoming, MAX_STR_LEN - 1, fin)) {
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449 | strip_spaces(incoming);
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450 | p = strchr(incoming, ' ');
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451 | if (strlen(incoming) < 3 || incoming[0] == '#' || !p) {
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452 | continue;
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453 | }
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454 | *(p++) = '\0';
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455 | while (*p == ' ') {
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456 | p++;
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457 | }
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458 | strcpy(label, incoming);
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459 | strcpy(value, p);
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460 | paranoid_free(incoming);
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461 | return (0);
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462 | }
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463 | return (1);
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464 | }
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465 |
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466 |
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467 |
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468 | /**
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469 | * Load a raidtab file into a raidlist structure.
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470 | * @param raidlist The raidlist to fill.
|
---|
471 | * @param fname The file to read from.
|
---|
472 | * @return 0 for success, 1 for failure.
|
---|
473 | */
|
---|
474 | #ifdef __FreeBSD__
|
---|
475 | int load_raidtab_into_raidlist(struct raidlist_itself *raidlist,
|
---|
476 | char *fname)
|
---|
477 | {
|
---|
478 | FILE *fin;
|
---|
479 | char *tmp;
|
---|
480 | int items;
|
---|
481 |
|
---|
482 | malloc_string(tmp);
|
---|
483 | raidlist->spares.entries = 0;
|
---|
484 | raidlist->disks.entries = 0;
|
---|
485 | if (length_of_file(fname) < 5) {
|
---|
486 | log_it("Raidtab is very small or non-existent. Ignoring it.");
|
---|
487 | raidlist->entries = 0;
|
---|
488 | paranoid_free(tmp);
|
---|
489 | return (0);
|
---|
490 | }
|
---|
491 | if (!(fin = fopen(fname, "r"))) {
|
---|
492 | log_it("Cannot open raidtab");
|
---|
493 | paranoid_free(tmp);
|
---|
494 | return (1);
|
---|
495 | }
|
---|
496 | items = 0;
|
---|
497 | log_it("Loading raidtab...");
|
---|
498 | while (!feof(fin)) {
|
---|
499 | int argc;
|
---|
500 | char **argv = get_next_vinum_conf_line(fin, &argc);
|
---|
501 | if (!argv)
|
---|
502 | break;
|
---|
503 | if (!strcmp(argv[0], "drive")) {
|
---|
504 | char *drivename, *devname;
|
---|
505 | if (argc < 4)
|
---|
506 | continue;
|
---|
507 | drivename = argv[1];
|
---|
508 | devname = get_option_val(argc, argv, "device");
|
---|
509 | if (!devname)
|
---|
510 | continue;
|
---|
511 |
|
---|
512 | if (get_option_state(argc, argv, "hotspare")) {
|
---|
513 | strcpy(raidlist->spares.el[raidlist->spares.entries].name,
|
---|
514 | drivename);
|
---|
515 | strcpy(raidlist->spares.el[raidlist->spares.entries].
|
---|
516 | device, devname);
|
---|
517 | raidlist->spares.el[raidlist->spares.entries].index =
|
---|
518 | raidlist->disks.entries;
|
---|
519 | raidlist->spares.entries++;
|
---|
520 | } else {
|
---|
521 | strcpy(raidlist->disks.el[raidlist->disks.entries].name,
|
---|
522 | drivename);
|
---|
523 | strcpy(raidlist->disks.el[raidlist->disks.entries].device,
|
---|
524 | devname);
|
---|
525 | raidlist->disks.el[raidlist->disks.entries].index =
|
---|
526 | raidlist->disks.entries;
|
---|
527 | raidlist->disks.entries++;
|
---|
528 | }
|
---|
529 | } else if (!strcmp(argv[0], "volume")) {
|
---|
530 | char *volname;
|
---|
531 | if (argc < 2)
|
---|
532 | continue;
|
---|
533 | volname = argv[1];
|
---|
534 | strcpy(raidlist->el[raidlist->entries].volname, volname);
|
---|
535 | raidlist->el[raidlist->entries].plexes = 0;
|
---|
536 | raidlist->entries++;
|
---|
537 | } else if (!strcmp(argv[0], "plex")) {
|
---|
538 | int raidlevel, stripesize;
|
---|
539 | char *org = 0;
|
---|
540 | char **tmp = 0;
|
---|
541 | if (argc < 3)
|
---|
542 | continue;
|
---|
543 | org = get_option_val(argc, argv, "org");
|
---|
544 | if (!org)
|
---|
545 | continue;
|
---|
546 | if (strcmp(org, "concat")) {
|
---|
547 | tmp = get_option_vals(argc, argv, "org", 2);
|
---|
548 | if (tmp && tmp[1]) {
|
---|
549 | stripesize = (int) (size_spec(tmp[1]) / 1024);
|
---|
550 | } else
|
---|
551 | stripesize = 279;
|
---|
552 | } else
|
---|
553 | stripesize = 0;
|
---|
554 |
|
---|
555 | if (!strcmp(org, "concat")) {
|
---|
556 | raidlevel = -1;
|
---|
557 | } else if (!strcmp(org, "striped")) {
|
---|
558 | raidlevel = 0;
|
---|
559 | } else if (!strcmp(org, "raid5")) {
|
---|
560 | raidlevel = 5;
|
---|
561 | } else
|
---|
562 | continue;
|
---|
563 |
|
---|
564 | raidlist->el[raidlist->entries - 1].plex
|
---|
565 | [raidlist->el[raidlist->entries - 1].plexes].raidlevel =
|
---|
566 | raidlevel;
|
---|
567 | raidlist->el[raidlist->entries -
|
---|
568 | 1].plex[raidlist->el[raidlist->entries -
|
---|
569 | 1].plexes].stripesize =
|
---|
570 | stripesize;
|
---|
571 | raidlist->el[raidlist->entries -
|
---|
572 | 1].plex[raidlist->el[raidlist->entries -
|
---|
573 | 1].plexes].subdisks = 0;
|
---|
574 | raidlist->el[raidlist->entries - 1].plexes++;
|
---|
575 | } else if ((!strcmp(argv[0], "sd"))
|
---|
576 | || (!strcmp(argv[0], "subdisk"))) {
|
---|
577 | char *drive = 0;
|
---|
578 | if (argc < 3)
|
---|
579 | continue;
|
---|
580 | drive = get_option_val(argc, argv, "drive");
|
---|
581 | if (!drive)
|
---|
582 | continue;
|
---|
583 |
|
---|
584 | strcpy(raidlist->el[raidlist->entries - 1].plex
|
---|
585 | [raidlist->el[raidlist->entries - 1].plexes - 1].sd
|
---|
586 | [raidlist->el[raidlist->entries - 1].plex
|
---|
587 | [raidlist->el[raidlist->entries - 1].plexes -
|
---|
588 | 1].subdisks].which_device, drive);
|
---|
589 | raidlist->el[raidlist->entries -
|
---|
590 | 1].plex[raidlist->el[raidlist->entries -
|
---|
591 | 1].plexes - 1].subdisks++;
|
---|
592 | }
|
---|
593 | }
|
---|
594 | fclose(fin);
|
---|
595 | log_it("Raidtab loaded successfully.");
|
---|
596 | sprintf(tmp, "%d RAID devices in raidtab", raidlist->entries);
|
---|
597 | log_it(tmp);
|
---|
598 | paranoid_free(tmp);
|
---|
599 | return (0);
|
---|
600 | }
|
---|
601 |
|
---|
602 |
|
---|
603 | #else
|
---|
604 |
|
---|
605 | int load_raidtab_into_raidlist(struct raidlist_itself *raidlist,
|
---|
606 | char *fname)
|
---|
607 | {
|
---|
608 | FILE *fin;
|
---|
609 | char *tmp;
|
---|
610 | char *label;
|
---|
611 | char *value;
|
---|
612 | int items;
|
---|
613 | int v;
|
---|
614 |
|
---|
615 | malloc_string(tmp);
|
---|
616 | malloc_string(label);
|
---|
617 | malloc_string(value);
|
---|
618 | assert(raidlist != NULL);
|
---|
619 | assert_string_is_neither_NULL_nor_zerolength(fname);
|
---|
620 |
|
---|
621 | if (length_of_file(fname) < 5) {
|
---|
622 | log_it("Raidtab is very small or non-existent. Ignoring it.");
|
---|
623 | raidlist->entries = 0;
|
---|
624 | paranoid_free(tmp);
|
---|
625 | paranoid_free(label);
|
---|
626 | paranoid_free(value);
|
---|
627 | return (0);
|
---|
628 | }
|
---|
629 | if (!(fin = fopen(fname, "r"))) {
|
---|
630 | log_it("Cannot open raidtab");
|
---|
631 | paranoid_free(tmp);
|
---|
632 | paranoid_free(label);
|
---|
633 | paranoid_free(value);
|
---|
634 | return (1);
|
---|
635 | }
|
---|
636 | items = 0;
|
---|
637 | log_it("Loading raidtab...");
|
---|
638 | get_next_raidtab_line(fin, label, value);
|
---|
639 | while (!feof(fin)) {
|
---|
640 | log_msg(1, "Looking for raid record #%d", items);
|
---|
641 | initialize_raidrec(&raidlist->el[items]);
|
---|
642 | v = 0;
|
---|
643 | /* find the 'raiddev' entry, indicating the start of the block of info */
|
---|
644 | while (!feof(fin) && strcmp(label, "raiddev")) {
|
---|
645 | strcpy(raidlist->el[items].additional_vars.el[v].label, label);
|
---|
646 | strcpy(raidlist->el[items].additional_vars.el[v].value, value);
|
---|
647 | v++;
|
---|
648 | get_next_raidtab_line(fin, label, value);
|
---|
649 | log_it(tmp);
|
---|
650 | }
|
---|
651 | raidlist->el[items].additional_vars.entries = v;
|
---|
652 | if (feof(fin)) {
|
---|
653 | log_msg(1, "No more records.");
|
---|
654 | continue;
|
---|
655 | }
|
---|
656 | log_msg(2, "Record #%d (%s) found", items, value);
|
---|
657 | strcpy(raidlist->el[items].raid_device, value);
|
---|
658 | for (get_next_raidtab_line(fin, label, value);
|
---|
659 | !feof(fin) && strcmp(label, "raiddev");
|
---|
660 | get_next_raidtab_line(fin, label, value)) {
|
---|
661 | process_raidtab_line(fin, &raidlist->el[items], label, value);
|
---|
662 | }
|
---|
663 | items++;
|
---|
664 | }
|
---|
665 | paranoid_fclose(fin);
|
---|
666 | raidlist->entries = items;
|
---|
667 | log_msg(1, "Raidtab loaded successfully.");
|
---|
668 | log_msg(1, "%d RAID devices in raidtab", items);
|
---|
669 | paranoid_free(tmp);
|
---|
670 | paranoid_free(label);
|
---|
671 | paranoid_free(value);
|
---|
672 | return (0);
|
---|
673 | }
|
---|
674 | #endif
|
---|
675 |
|
---|
676 |
|
---|
677 |
|
---|
678 |
|
---|
679 |
|
---|
680 |
|
---|
681 |
|
---|
682 |
|
---|
683 | #ifndef __FreeBSD__
|
---|
684 | /**
|
---|
685 | * Process a single line from the raidtab and store the results into @p raidrec.
|
---|
686 | * @param fin The stream to read the line from.
|
---|
687 | * @param raidrec The RAID device record to update.
|
---|
688 | * @param label Where to put the label processed.
|
---|
689 | * @param value Where to put the value processed.
|
---|
690 | */
|
---|
691 | void
|
---|
692 | process_raidtab_line(FILE * fin,
|
---|
693 | struct raid_device_record *raidrec,
|
---|
694 | char *label, char *value)
|
---|
695 | {
|
---|
696 |
|
---|
697 | /*@ add mallocs * */
|
---|
698 | char *tmp;
|
---|
699 | char *labelB;
|
---|
700 | char *valueB;
|
---|
701 |
|
---|
702 | struct list_of_disks *disklist;
|
---|
703 | int index;
|
---|
704 | int v;
|
---|
705 |
|
---|
706 | malloc_string(tmp);
|
---|
707 | malloc_string(labelB);
|
---|
708 | malloc_string(valueB);
|
---|
709 | assert(fin != NULL);
|
---|
710 | assert(raidrec != NULL);
|
---|
711 | assert_string_is_neither_NULL_nor_zerolength(label);
|
---|
712 | assert(value != NULL);
|
---|
713 |
|
---|
714 | if (!strcmp(label, "raid-level")) {
|
---|
715 | if (!strcmp(value, "linear")) {
|
---|
716 | raidrec->raid_level = -1;
|
---|
717 | } else {
|
---|
718 | raidrec->raid_level = atoi(value);
|
---|
719 | }
|
---|
720 | } else if (!strcmp(label, "nr-raid-disks")) { /* ignore it */
|
---|
721 | } else if (!strcmp(label, "nr-spare-disks")) { /* ignore it */
|
---|
722 | } else if (!strcmp(label, "nr-parity-disks")) { /* ignore it */
|
---|
723 | } else if (!strcmp(label, "nr-failed-disks")) { /* ignore it */
|
---|
724 | } else if (!strcmp(label, "persistent-superblock")) {
|
---|
725 | raidrec->persistent_superblock = atoi(value);
|
---|
726 | } else if (!strcmp(label, "chunk-size")) {
|
---|
727 | raidrec->chunk_size = atoi(value);
|
---|
728 | } else if (!strcmp(label, "device")) {
|
---|
729 | get_next_raidtab_line(fin, labelB, valueB);
|
---|
730 | if (!strcmp(labelB, "raid-disk")) {
|
---|
731 | disklist = &raidrec->data_disks;
|
---|
732 | } else if (!strcmp(labelB, "spare-disk")) {
|
---|
733 | disklist = &raidrec->spare_disks;
|
---|
734 | } else if (!strcmp(labelB, "parity-disk")) {
|
---|
735 | disklist = &raidrec->parity_disks;
|
---|
736 | } else if (!strcmp(labelB, "failed-disk")) {
|
---|
737 | disklist = &raidrec->failed_disks;
|
---|
738 | } else {
|
---|
739 | disklist = NULL;
|
---|
740 | }
|
---|
741 | if (!disklist) {
|
---|
742 | sprintf(tmp,
|
---|
743 | "Ignoring '%s %s' pair of disk %s", labelB, valueB,
|
---|
744 | label);
|
---|
745 | log_it(tmp);
|
---|
746 | } else {
|
---|
747 | index = atoi(valueB);
|
---|
748 | add_disk_to_raid_device(disklist, value, index);
|
---|
749 | }
|
---|
750 | } else {
|
---|
751 | v = raidrec->additional_vars.entries;
|
---|
752 | strcpy(raidrec->additional_vars.el[v].label, label);
|
---|
753 | strcpy(raidrec->additional_vars.el[v].value, value);
|
---|
754 | raidrec->additional_vars.entries = ++v;
|
---|
755 | }
|
---|
756 | paranoid_free(tmp);
|
---|
757 | paranoid_free(labelB);
|
---|
758 | paranoid_free(valueB);
|
---|
759 | }
|
---|
760 | #endif
|
---|
761 |
|
---|
762 |
|
---|
763 | /**
|
---|
764 | * Save a disklist to a stream in raidtab format.
|
---|
765 | * @param listname One of "raid-disk", "spare-disk", "parity-disk", or "failed-disk".
|
---|
766 | * @param disklist The disklist to save to @p fout.
|
---|
767 | * @param fout The stream to write to.
|
---|
768 | */
|
---|
769 | void
|
---|
770 | save_disklist_to_file(char *listname,
|
---|
771 | struct list_of_disks *disklist, FILE * fout)
|
---|
772 | {
|
---|
773 | int i;
|
---|
774 |
|
---|
775 | assert_string_is_neither_NULL_nor_zerolength(listname);
|
---|
776 | assert(disklist != NULL);
|
---|
777 | assert(fout != NULL);
|
---|
778 |
|
---|
779 | for (i = 0; i < disklist->entries; i++) {
|
---|
780 | fprintf(fout, " device %s\n",
|
---|
781 | disklist->el[i].device);
|
---|
782 | fprintf(fout, " %-21s %d\n", listname, disklist->el[i].index);
|
---|
783 | }
|
---|
784 | }
|
---|
785 |
|
---|
786 |
|
---|
787 |
|
---|
788 |
|
---|
789 |
|
---|
790 | #ifdef __FreeBSD__
|
---|
791 | /**
|
---|
792 | * Add a new plex to a volume. The index of the plex will be <tt>v-\>plexes - 1</tt>.
|
---|
793 | * @param v The volume to operate on.
|
---|
794 | * @param raidlevel The RAID level of the new plex.
|
---|
795 | * @param stripesize The stripe size (chunk size) of the new plex.
|
---|
796 | */
|
---|
797 | void add_plex_to_volume(struct vinum_volume *v, int raidlevel,
|
---|
798 | int stripesize)
|
---|
799 | {
|
---|
800 | v->plex[v->plexes].raidlevel = raidlevel;
|
---|
801 | v->plex[v->plexes].stripesize = stripesize;
|
---|
802 | v->plex[v->plexes].subdisks = 0;
|
---|
803 | ++v->plexes;
|
---|
804 | }
|
---|
805 |
|
---|
806 | /**
|
---|
807 | * For internal use only.
|
---|
808 | */
|
---|
809 | char **get_next_vinum_conf_line(FILE * f, int *argc)
|
---|
810 | {
|
---|
811 | int cnt = 0;
|
---|
812 | static char *argv[64];
|
---|
813 | char **ap;
|
---|
814 | char *line = (char *) malloc(MAX_STR_LEN);
|
---|
815 | if (!line)
|
---|
816 | errx(1,
|
---|
817 | "unable to allocate %i bytes of memory for `char *line' at %s:%i",
|
---|
818 | MAX_STR_LEN, __FILE__, __LINE__);
|
---|
819 | (void) fgets(line, MAX_STR_LEN, f);
|
---|
820 | if (feof(f)) {
|
---|
821 | log_it("[GNVCL] Uh... I reached the EOF.");
|
---|
822 | return 0;
|
---|
823 | }
|
---|
824 |
|
---|
825 | for (ap = argv; (*ap = strsep(&line, " \t")) != NULL;)
|
---|
826 | if (**ap != '\0') {
|
---|
827 | if (++ap >= &argv[64])
|
---|
828 | break;
|
---|
829 | cnt++;
|
---|
830 | }
|
---|
831 |
|
---|
832 | if (strchr(argv[cnt - 1], '\n')) {
|
---|
833 | *(strchr(argv[cnt - 1], '\n')) = '\0';
|
---|
834 | }
|
---|
835 |
|
---|
836 | if (argc)
|
---|
837 | *argc = cnt;
|
---|
838 | return argv;
|
---|
839 | }
|
---|
840 |
|
---|
841 | /**
|
---|
842 | * For internal use only.
|
---|
843 | */
|
---|
844 | char *get_option_val(int argc, char **argv, char *option)
|
---|
845 | {
|
---|
846 | int i;
|
---|
847 | for (i = 0; i < (argc - 1); ++i) {
|
---|
848 | if (!strcmp(argv[i], option)) {
|
---|
849 | return argv[i + 1];
|
---|
850 | }
|
---|
851 | }
|
---|
852 | return 0;
|
---|
853 | }
|
---|
854 |
|
---|
855 | /**
|
---|
856 | * For internal use only.
|
---|
857 | */
|
---|
858 | char **get_option_vals(int argc, char **argv, char *option, int nval)
|
---|
859 | {
|
---|
860 | int i, j;
|
---|
861 | static char **ret;
|
---|
862 | ret = (char **) malloc(nval * sizeof(char *));
|
---|
863 | for (i = 0; i < (argc - nval); ++i) {
|
---|
864 | if (!strcmp(argv[i], option)) {
|
---|
865 | for (j = 0; j < nval; ++j) {
|
---|
866 | ret[j] = (char *) malloc(strlen(argv[i + j + 1]) + 1);
|
---|
867 | strcpy(ret[j], argv[i + j + 1]);
|
---|
868 | }
|
---|
869 | return ret;
|
---|
870 | }
|
---|
871 | }
|
---|
872 | return 0;
|
---|
873 | }
|
---|
874 |
|
---|
875 | /**
|
---|
876 | * For internal use only.
|
---|
877 | */
|
---|
878 | bool get_option_state(int argc, char **argv, char *option)
|
---|
879 | {
|
---|
880 | int i;
|
---|
881 | for (i = 0; i < argc; ++i)
|
---|
882 | if (!strcmp(argv[i], option))
|
---|
883 | return TRUE;
|
---|
884 |
|
---|
885 | return FALSE;
|
---|
886 | }
|
---|
887 |
|
---|
888 | /**
|
---|
889 | * Taken from Vinum source -- for internal use only.
|
---|
890 | */
|
---|
891 | long long size_spec(char *spec)
|
---|
892 | {
|
---|
893 | u_int64_t size;
|
---|
894 | char *s;
|
---|
895 | int sign = 1; /* -1 if negative */
|
---|
896 |
|
---|
897 | size = 0;
|
---|
898 | if (spec != NULL) { /* we have a parameter */
|
---|
899 | s = spec;
|
---|
900 | if (*s == '-') { /* negative, */
|
---|
901 | sign = -1;
|
---|
902 | s++; /* skip */
|
---|
903 | }
|
---|
904 | if ((*s >= '0') && (*s <= '9')) { /* it's numeric */
|
---|
905 | while ((*s >= '0') && (*s <= '9')) /* it's numeric */
|
---|
906 | size = size * 10 + *s++ - '0'; /* convert it */
|
---|
907 | switch (*s) {
|
---|
908 | case '\0':
|
---|
909 | return size * sign;
|
---|
910 |
|
---|
911 | case 'B':
|
---|
912 | case 'b':
|
---|
913 | case 'S':
|
---|
914 | case 's':
|
---|
915 | return size * sign * 512;
|
---|
916 |
|
---|
917 | case 'K':
|
---|
918 | case 'k':
|
---|
919 | return size * sign * 1024;
|
---|
920 |
|
---|
921 | case 'M':
|
---|
922 | case 'm':
|
---|
923 | return size * sign * 1024 * 1024;
|
---|
924 |
|
---|
925 | case 'G':
|
---|
926 | case 'g':
|
---|
927 | return size * sign * 1024 * 1024 * 1024;
|
---|
928 |
|
---|
929 | case 'T':
|
---|
930 | case 't':
|
---|
931 | log_it
|
---|
932 | ("Ok, I'm scared... Someone did a TERABYTE+ size-spec");
|
---|
933 | return size * sign * 1024 * 1024 * 1024 * 1024;
|
---|
934 |
|
---|
935 | case 'P':
|
---|
936 | case 'p':
|
---|
937 | log_it
|
---|
938 | ("If I was scared last time, I'm freaked out now. Someone actually has a PETABYTE?!?!?!?!");
|
---|
939 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024;
|
---|
940 |
|
---|
941 | case 'E':
|
---|
942 | case 'e':
|
---|
943 | log_it
|
---|
944 | ("Okay, I'm REALLY freaked out. Who could devote a whole EXABYTE to their data?!?!");
|
---|
945 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
946 | 1024;
|
---|
947 |
|
---|
948 | case 'Z':
|
---|
949 | case 'z':
|
---|
950 | log_it
|
---|
951 | ("WHAT!?!? A ZETABYTE!?!? You've GOT to be kidding me!!!");
|
---|
952 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
953 | 1024 * 1024;
|
---|
954 |
|
---|
955 | case 'Y':
|
---|
956 | case 'y':
|
---|
957 | log_it
|
---|
958 | ("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?!?!");
|
---|
959 | popup_and_OK
|
---|
960 | ("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 :-)");
|
---|
961 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
962 | 1024 * 1024 * 1024;
|
---|
963 | }
|
---|
964 | }
|
---|
965 | }
|
---|
966 | return size * sign;
|
---|
967 | }
|
---|
968 |
|
---|
969 | #endif
|
---|
970 |
|
---|
971 |
|
---|
972 |
|
---|
973 |
|
---|
974 | int read_mdstat(struct s_mdstat *mdstat, char *mdstat_file)
|
---|
975 | {
|
---|
976 | FILE *fin;
|
---|
977 | char *tmp;
|
---|
978 | char *stub;
|
---|
979 | char *incoming;
|
---|
980 | char *raid_devname;
|
---|
981 | char *p, *q, *r;
|
---|
982 | int diskno;
|
---|
983 |
|
---|
984 | malloc_string(tmp);
|
---|
985 | malloc_string(stub);
|
---|
986 | malloc_string(incoming);
|
---|
987 | malloc_string(raid_devname);
|
---|
988 | if (!(fin = fopen(mdstat_file, "r"))) {
|
---|
989 | log_msg(1, "%s not found", mdstat_file);
|
---|
990 | return (1);
|
---|
991 | }
|
---|
992 | mdstat->entries = 0;
|
---|
993 | for (fgets(incoming, MAX_STR_LEN - 1, fin); !feof(fin);
|
---|
994 | fgets(incoming, MAX_STR_LEN - 1, fin)) {
|
---|
995 | p = incoming;
|
---|
996 | if (*p != 'm' && *(p + 1) == 'm') {
|
---|
997 | p++;
|
---|
998 | }
|
---|
999 | if (strncmp(p, "md", 2)) {
|
---|
1000 | continue;
|
---|
1001 | }
|
---|
1002 | // read first line --- mdN : active raidX ............
|
---|
1003 | mdstat->el[mdstat->entries].md = atoi(p + 2);
|
---|
1004 | log_msg(8, "Storing /dev/md%d's info", atoi(p + 2));
|
---|
1005 | while (*p != ':' && *p) {
|
---|
1006 | p++;
|
---|
1007 | }
|
---|
1008 | while ((*p != 'r' || *(p + 1) != 'a') && *p) {
|
---|
1009 | p++;
|
---|
1010 | }
|
---|
1011 | if (!strncmp(p, "raid", 4)) {
|
---|
1012 | mdstat->el[mdstat->entries].raidlevel = *(p + 4) - '0';
|
---|
1013 | }
|
---|
1014 | p += 4;
|
---|
1015 | while (*p != ' ' && *p) {
|
---|
1016 | p++;
|
---|
1017 | }
|
---|
1018 | while (*p == ' ' && *p) {
|
---|
1019 | p++;
|
---|
1020 | }
|
---|
1021 | for (diskno = 0; *p; diskno++) {
|
---|
1022 | strcpy(stub, p);
|
---|
1023 | // log_msg(1, "diskno=%d; tmp=%s", diskno, tmp);
|
---|
1024 | q = strchr(stub, '[');
|
---|
1025 | if (q) {
|
---|
1026 | *q = '\0';
|
---|
1027 | q++;
|
---|
1028 | r = strchr(q, ']');
|
---|
1029 | if (r) {
|
---|
1030 | *r = '\0';
|
---|
1031 | }
|
---|
1032 | mdstat->el[mdstat->entries].disks.el[diskno].index =
|
---|
1033 | atoi(q);
|
---|
1034 | } else {
|
---|
1035 | mdstat->el[mdstat->entries].disks.el[diskno].index = -1;
|
---|
1036 | q = strchr(stub, ' ');
|
---|
1037 | if (q) {
|
---|
1038 | *q = '\0';
|
---|
1039 | }
|
---|
1040 | }
|
---|
1041 | sprintf(tmp, "/dev/%s", stub);
|
---|
1042 | log_msg(8, "/dev/md%d : disk#%d : %s (%d)",
|
---|
1043 | mdstat->el[mdstat->entries].md, diskno, tmp,
|
---|
1044 | mdstat->el[mdstat->entries].disks.el[diskno].index);
|
---|
1045 | strcpy(mdstat->el[mdstat->entries].disks.el[diskno].device,
|
---|
1046 | tmp);
|
---|
1047 | while (*p != ' ' && *p) {
|
---|
1048 | p++;
|
---|
1049 | }
|
---|
1050 | while (*p == ' ' && *p) {
|
---|
1051 | p++;
|
---|
1052 | }
|
---|
1053 | }
|
---|
1054 | mdstat->el[mdstat->entries].disks.entries = diskno;
|
---|
1055 | // next line --- skip it
|
---|
1056 | if (!feof(fin)) {
|
---|
1057 | fgets(incoming, MAX_STR_LEN - 1, fin);
|
---|
1058 | } else {
|
---|
1059 | continue;
|
---|
1060 | }
|
---|
1061 | // next line --- the 'progress' line
|
---|
1062 | if (!feof(fin)) {
|
---|
1063 | fgets(incoming, MAX_STR_LEN - 1, fin);
|
---|
1064 | } else {
|
---|
1065 | continue;
|
---|
1066 | }
|
---|
1067 | // log_msg(1, "Percentage line = '%s'", incoming);
|
---|
1068 | if (!(p = strchr(incoming, '\%'))) {
|
---|
1069 | mdstat->el[mdstat->entries].progress = 999; // not found
|
---|
1070 | } else if (strstr(incoming, "DELAYED")) {
|
---|
1071 | mdstat->el[mdstat->entries].progress = -1; // delayed (therefore, stuck at 0%)
|
---|
1072 | } else {
|
---|
1073 | for (*p = '\0'; *p != ' '; p--);
|
---|
1074 | mdstat->el[mdstat->entries].progress = atoi(p);
|
---|
1075 | }
|
---|
1076 | log_msg(8, "progress =%d", mdstat->el[mdstat->entries].progress);
|
---|
1077 | mdstat->entries++;
|
---|
1078 | }
|
---|
1079 | fclose(fin);
|
---|
1080 | paranoid_free(tmp);
|
---|
1081 | paranoid_free(stub);
|
---|
1082 | paranoid_free(incoming);
|
---|
1083 | paranoid_free(raid_devname);
|
---|
1084 | return (0);
|
---|
1085 | }
|
---|
1086 |
|
---|
1087 |
|
---|
1088 |
|
---|
1089 | int create_raidtab_from_mdstat(char *raidtab_fname, char *mdstat_fname)
|
---|
1090 | {
|
---|
1091 | struct raidlist_itself *raidlist;
|
---|
1092 | struct s_mdstat *mdstat;
|
---|
1093 | int retval = 0;
|
---|
1094 | int i;
|
---|
1095 |
|
---|
1096 | raidlist = malloc(sizeof(struct raidlist_itself));
|
---|
1097 | mdstat = malloc(sizeof(struct s_mdstat));
|
---|
1098 |
|
---|
1099 | if (read_mdstat(mdstat, mdstat_fname)) {
|
---|
1100 | log_to_screen("Sorry, cannot read %s", mdstat_fname);
|
---|
1101 | return (1);
|
---|
1102 | }
|
---|
1103 |
|
---|
1104 | for (i = 0; i < mdstat->entries; i++) {
|
---|
1105 | sprintf(raidlist->el[i].raid_device, "/dev/md%d",
|
---|
1106 | mdstat->el[i].md);
|
---|
1107 | raidlist->el[i].raid_level = mdstat->el[i].raidlevel;
|
---|
1108 | raidlist->el[i].persistent_superblock = 1;
|
---|
1109 | raidlist->el[i].chunk_size = 4;
|
---|
1110 | memcpy((void *) &raidlist->el[i].data_disks,
|
---|
1111 | (void *) &mdstat->el[i].disks,
|
---|
1112 | sizeof(struct list_of_disks));
|
---|
1113 | // FIXME --- the above line does not allow for spare disks
|
---|
1114 | log_to_screen
|
---|
1115 | ("FIXME - create_raidtab_from_mdstat does not allow for spare disks");
|
---|
1116 | }
|
---|
1117 | raidlist->entries = i;
|
---|
1118 | retval += save_raidlist_to_raidtab(raidlist, raidtab_fname);
|
---|
1119 | return (retval);
|
---|
1120 | }
|
---|
1121 |
|
---|
1122 |
|
---|
1123 |
|
---|
1124 | /* @} - end of raidGroup */
|
---|