1 | /* libmondo-raid.c subroutines for handling RAID
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2 | $Id: libmondo-raid.c 30 2005-09-28 23:32:28Z 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 30 2005-09-28 23:32:28Z 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
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72 | is_this_raid_personality_registered (int raidno)
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73 | {
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74 | #ifdef __FreeBSD__
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75 | return ((raidno == -1) || (raidno == 0) || (raidno == 1) || (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, "cat /proc/mdstat | grep \"");
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83 | if (raidno == -1)
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84 | {
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85 | strcat (command, "linear");
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86 | }
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87 | else
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88 | {
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89 | sprintf (command + strlen (command), "raid%d", raidno);
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90 | }
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91 | strcat (command, "\" > /dev/null 2> /dev/null");
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92 | log_it ("Is raid %d registered? Command = '%s'", raidno, command);
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93 | res = system (command);
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94 | paranoid_free(command);
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95 | if (res)
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96 | {
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97 | return (FALSE);
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98 | }
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99 | else
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100 | {
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101 | return (TRUE);
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102 | }
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103 | #endif
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104 | }
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105 |
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106 |
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107 |
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108 |
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109 |
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110 |
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111 | /**
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112 | * Search for @p device in @p disklist.
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113 | * @param disklist The disklist to search in.
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114 | * @param device The device to search for.
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115 | * @return The index number of @p device, or -1 if it does not exist.
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116 | */
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117 | int
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118 | where_in_drivelist_is_drive (struct list_of_disks *disklist, char *device)
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119 | {
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120 |
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121 | /*@ int **************************************************************/
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122 | int i = 0;
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123 |
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124 | assert(disklist!=NULL);
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125 | assert_string_is_neither_NULL_nor_zerolength(device);
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126 |
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127 | for (i = 0; i < disklist->entries; i++)
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128 | {
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129 | if (!strcmp (disklist->el[i].device, device))
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130 | {
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131 | break;
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132 | }
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133 | }
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134 | if (i == disklist->entries)
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135 | {
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136 | return (-1);
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137 | }
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138 | else
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139 | {
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140 | return (i);
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141 | }
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142 | }
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143 |
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144 |
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145 |
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146 |
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147 |
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148 |
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149 |
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150 |
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151 | /**
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152 | * Determine which RAID device is using a particular partition.
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153 | * @param raidlist The RAID information structure.
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154 | * @param device The partition to find out about.
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155 | * @return The index number of the RAID device using @p device, or -1 if there is none.
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156 | */
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157 | int
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158 | which_raid_device_is_using_this_partition (struct raidlist_itself *raidlist,
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159 | char *device)
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160 | {
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161 | #ifdef __FreeBSD__
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162 | // FreeBSD-specific version of which_raid_device_is_using_this_partition()
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163 | /*@ int **********************************************************/
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164 | int i = 0;
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165 |
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166 | for (i = 0; i < raidlist->entries; i++)
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167 | {
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168 | bool thisone = FALSE;
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169 | int j, k, l;
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170 |
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171 | for (j = 0; j < raidlist->el[i].plexes; ++j) {
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172 | for (k = 0; k < raidlist->el[i].plex[j].subdisks; ++k) {
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173 | for (l = 0; l < raidlist->disks.entries; ++l) {
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174 | if (!strcmp (raidlist->disks.el[l].device,
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175 | device) &&
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176 | !strcmp (raidlist->el[i].plex[j].sd[k].which_device,
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177 | raidlist->disks.el[l].name))
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178 | thisone = TRUE;
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179 | }
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180 | }
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181 | }
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182 |
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183 | if (thisone)
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184 | {
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185 | break;
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186 | }
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187 | }
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188 | if (i == raidlist->entries)
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189 | {
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190 | return (-1);
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191 | }
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192 | else
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193 | {
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194 | return (i);
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195 | }
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196 | }
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197 |
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198 | #else
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199 | // Linux-specific version of which_raid_device_is_using_this_partition()
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200 | // and one other function which FreeBSD doesn't use
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201 |
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202 | int current_raiddev = 0;
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203 |
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204 | assert_string_is_neither_NULL_nor_zerolength(device);
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205 | assert(raidlist!=NULL);
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206 |
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207 | for (current_raiddev = 0; current_raiddev < raidlist->entries;
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208 | current_raiddev++)
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209 | {
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210 | if (where_in_drivelist_is_drive
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211 | (&raidlist->el[current_raiddev].data_disks, device) >= 0
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212 | || where_in_drivelist_is_drive (&raidlist->el[current_raiddev].
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213 | spare_disks, device) >= 0
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214 | || where_in_drivelist_is_drive (&raidlist->el[current_raiddev].
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215 | parity_disks, device) >= 0
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216 | || where_in_drivelist_is_drive (&raidlist->el[current_raiddev].
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217 | failed_disks, device) >= 0)
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218 | {
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219 | break;
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220 | }
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221 | }
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222 | if (current_raiddev == raidlist->entries)
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223 | {
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224 | return (-1);
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225 | }
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226 | else
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227 | {
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228 | return (current_raiddev);
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229 | }
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230 | }
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231 |
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232 | /**
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233 | * Write an @c int variable to a list of RAID variables.
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234 | * @param raidrec The RAID device record to write to.
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235 | * @param lino The variable index number to modify/create.
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236 | * @param label The label to write.
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237 | * @param value The value to write.
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238 | */
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239 | void
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240 | write_variableINT_to_raid_var_line (struct raid_device_record *raidrec,
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241 | int lino, char *label, int value)
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242 | {
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243 | /*@ buffers ******************************************************/
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244 | char *sz_value;
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245 |
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246 | malloc_string(sz_value);
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247 | assert(raidrec!=NULL);
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248 | assert(label!=NULL);
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249 |
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250 | sprintf (sz_value, "%d", value);
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251 | strcpy (raidrec->additional_vars.el[lino].label, label);
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252 | strcpy (raidrec->additional_vars.el[lino].value, sz_value);
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253 | paranoid_free(sz_value);
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254 | }
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255 | #endif
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256 |
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257 |
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258 |
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259 |
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260 |
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261 |
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262 |
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263 |
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264 | #ifdef __FreeBSD__
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265 | /**
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266 | * Add a disk to a RAID plex.
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267 | * @param p The plex to add the device to.
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268 | * @param device_to_add The device to add to @p p.
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269 | */
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270 | void add_disk_to_raid_device(struct vinum_plex *p, char*device_to_add)
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271 | {
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272 | strcpy (p->sd[p->subdisks].which_device, device_to_add);
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273 | ++p->subdisks;
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274 |
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275 | }
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276 | #else
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277 | /**
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278 | * Add a disk to a RAID device.
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279 | * @param disklist The disklist to add the device to.
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280 | * @param device_to_add The device to add to @p disklist.
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281 | * @param index The index number of the disklist entry we're creating.
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282 | */
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283 | void add_disk_to_raid_device(struct list_of_disks *disklist, char*device_to_add, int index)
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284 | {
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285 | int items;
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286 |
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287 | assert(disklist!=NULL);
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288 | assert_string_is_neither_NULL_nor_zerolength(device_to_add);
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289 | items = disklist->entries;
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290 | strcpy( disklist->el[items].device, device_to_add );
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291 | disklist->el[items].index = index;
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292 | items++;
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293 | disklist->entries = items;
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294 | }
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295 | #endif
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296 |
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297 |
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298 | /**
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299 | * Save the additional RAID variables to a stream.
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300 | * @param vars The RAID variable list to save.
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301 | * @param fout The FILE pointer to save them to.
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302 | */
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303 | void
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304 | save_additional_vars_to_file(struct additional_raid_variables *vars, FILE *fout)
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305 | {
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306 | int i;
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307 |
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308 | assert(vars!=NULL);
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309 | assert(fout!=NULL);
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310 |
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311 | for(i = 0; i < vars->entries; i++ )
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312 | {
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313 | fprintf(fout," %-21s %s\n",vars->el[i].label, vars->el[i].value);
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314 | }
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315 | }
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316 |
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317 |
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318 | /**
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319 | * Save a raidlist structure to disk in raidtab format.
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320 | * @param raidlist The raidlist to save.
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321 | * @param fname The file to save it to.
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322 | * @return 0, always.
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323 | * @bug Return value is redundant.
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324 | */
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325 | int
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326 | save_raidlist_to_raidtab(struct raidlist_itself *raidlist, char *fname)
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327 | {
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328 | FILE *fout;
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329 | int current_raid_device;
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330 | #ifdef __FreeBSD__
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331 | int i;
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332 | #else
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333 | // Linux
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334 | #endif
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335 |
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336 | assert(raidlist!=NULL);
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337 | assert_string_is_neither_NULL_nor_zerolength(fname);
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338 |
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339 | if (raidlist->entries <= 0)
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340 | {
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341 | unlink(fname);
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342 | log_it("Deleting raidtab (no RAID devs anyway)");
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343 | return(0);
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344 | }
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345 | if (!(fout=fopen(fname,"w")))
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346 | {
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347 | log_OS_error("Failed to save raidlist");return(1);
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348 | }
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349 | fprintf (fout, "# Generated by Mondo Rescue\n");
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350 |
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351 | #ifdef __FreeBSD__
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352 | for (i = 0; i < raidlist->disks.entries; ++i) {
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353 | fprintf (fout, "drive %s device %s\n", raidlist->disks.el[i].name, raidlist->disks.el[i].device);
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354 | }
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355 | for (i = 0; i < (raidlist->spares.entries); ++i) {
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356 | fprintf (fout, "drive %s device %s hotspare\n", raidlist->spares.el[i].name, raidlist->spares.el[i].device);
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357 | }
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358 | #endif
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359 |
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360 | for(current_raid_device = 0; current_raid_device < raidlist->entries; current_raid_device++ )
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361 | {
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362 | save_raidrec_to_file(&raidlist->el[current_raid_device],fout);
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363 | }
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364 | paranoid_fclose(fout);
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365 | return(0);
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366 | }
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367 |
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368 |
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369 | /**
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370 | * Save an individual RAID device record to a stream.
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371 | * @param raidrec The RAID device record to save.
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372 | * @param fout The stream to save it to.
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373 | */
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374 | void
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375 | save_raidrec_to_file( struct
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376 | #ifdef __FreeBSD__
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377 | vinum_volume
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378 | #else
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379 | raid_device_record
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380 | #endif
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381 | *raidrec, FILE *fout )
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382 | {
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383 | #ifdef __FreeBSD__
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384 | int i, j;
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385 |
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386 | fprintf (fout, "\nvolume %s\n", raidrec->volname);
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387 | for (i = 0; i < raidrec->plexes; ++i) {
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388 | char org[24];
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389 | switch (raidrec->plex[i].raidlevel) {
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390 | case -1: strcpy (org, "concat"); break;
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391 | case 0: strcpy (org, "striped"); break;
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392 | case 5: strcpy (org, "raid5"); break;
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393 | }
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394 | fprintf (fout, " plex org %s", org);
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395 | if (raidrec->plex[i].raidlevel != -1) {
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396 | fprintf (fout, " %ik", raidrec->plex[i].stripesize);
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397 | }
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398 | fprintf (fout, "\n");
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399 |
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400 | for (j = 0; j < raidrec->plex[i].subdisks; ++j) {
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401 | fprintf (fout, " sd drive %s size 0\n", raidrec->plex[i].sd[j].which_device);
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402 | }
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403 | }
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404 | #else
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405 | assert(raidrec!=NULL);
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406 | assert(fout!=NULL);
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407 |
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408 | fprintf(fout,"raiddev %s\n",raidrec->raid_device);
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409 | if (raidrec->raid_level == -1 )
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410 | {
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411 | fprintf(fout," raid-level linear\n");
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412 | }
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413 | else
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414 | {
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415 | fprintf(fout," raid-level %d\n",raidrec->raid_level);
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416 | }
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417 | fprintf(fout," chunk-size %d\n",raidrec->chunk_size);
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418 | fprintf(fout," nr-raid-disks %d\n",raidrec->data_disks.entries);
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419 | fprintf(fout," nr-spare-disks %d\n",raidrec->spare_disks.entries);
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420 | if (raidrec->parity_disks.entries > 0)
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421 | {
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422 | fprintf(fout," nr-parity-disks %d\n",raidrec->parity_disks.entries);
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423 | }
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424 |
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425 | fprintf(fout," persistent-superblock %d\n",raidrec->persistent_superblock);
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426 | save_additional_vars_to_file(&raidrec->additional_vars,fout);
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427 | fprintf(fout,"\n");
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428 | save_disklist_to_file("raid-disk", &raidrec->data_disks, fout);
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429 | save_disklist_to_file("spare-disk", &raidrec->spare_disks, fout);
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430 | save_disklist_to_file("parity-disk", &raidrec->parity_disks, fout);
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431 | save_disklist_to_file("failed-disk", &raidrec->failed_disks, fout);
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432 | fprintf(fout,"\n");
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433 | #endif
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434 | }
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435 |
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436 | /**
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437 | * Retrieve the next line from a raidtab stream.
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438 | * @param fin The file to read the input from.
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439 | * @param label Where to put the line's label.
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440 | * @param value Where to put the line's value.
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441 | * @return 0 if the line was read and stored successfully, 1 if we're at end of file.
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442 | */
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443 | int
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444 | get_next_raidtab_line( FILE *fin, char *label, char *value )
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445 | {
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446 | char *incoming;
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447 | char *p;
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448 |
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449 | malloc_string(incoming);
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450 | assert(fin!=NULL);
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451 | assert(label!=NULL);
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452 | assert(value!=NULL);
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453 |
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454 | label[0] = value[0]= '\0';
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455 | if ( feof(fin) )
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456 | {
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457 | paranoid_free(incoming);
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458 | return( 1 );
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459 | }
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460 | for( fgets(incoming, MAX_STR_LEN - 1, fin ); !feof( fin ); fgets(incoming, MAX_STR_LEN - 1, fin ) )
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461 | {
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462 | strip_spaces( incoming );
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463 | p = strchr( incoming,' ' );
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464 | if ( strlen( incoming ) < 3 || incoming[0] == '#' || !p)
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465 | {
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466 | continue;
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467 | }
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468 | *(p++) = '\0';
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469 | while(*p==' ') { p++; }
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470 | strcpy( label, incoming );
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471 | strcpy( value, p );
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472 | paranoid_free(incoming);
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473 | return( 0 );
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474 | }
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475 | return( 1 );
|
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476 | }
|
---|
477 |
|
---|
478 |
|
---|
479 |
|
---|
480 | /**
|
---|
481 | * Load a raidtab file into a raidlist structure.
|
---|
482 | * @param raidlist The raidlist to fill.
|
---|
483 | * @param fname The file to read from.
|
---|
484 | * @return 0 for success, 1 for failure.
|
---|
485 | */
|
---|
486 | #ifdef __FreeBSD__
|
---|
487 | int load_raidtab_into_raidlist( struct raidlist_itself *raidlist, char *fname)
|
---|
488 | {
|
---|
489 | FILE*fin;
|
---|
490 | char *tmp;
|
---|
491 | int items;
|
---|
492 |
|
---|
493 | malloc_string(tmp);
|
---|
494 | raidlist->spares.entries = 0;
|
---|
495 | raidlist->disks.entries = 0;
|
---|
496 | if (length_of_file(fname)<5)
|
---|
497 | {
|
---|
498 | log_it("Raidtab is very small or non-existent. Ignoring it.");
|
---|
499 | raidlist->entries=0;
|
---|
500 | paranoid_free(tmp);
|
---|
501 | return(0);
|
---|
502 | }
|
---|
503 | if (!(fin=fopen(fname,"r")))
|
---|
504 | {
|
---|
505 | log_it("Cannot open raidtab");
|
---|
506 | paranoid_free(tmp);
|
---|
507 | return(1);
|
---|
508 | }
|
---|
509 | items=0;
|
---|
510 | log_it("Loading raidtab...");
|
---|
511 | while(!feof(fin))
|
---|
512 | {
|
---|
513 | int argc;
|
---|
514 | char **argv = get_next_vinum_conf_line (fin, &argc);
|
---|
515 | if (!argv) break;
|
---|
516 | if (!strcmp (argv[0], "drive")) {
|
---|
517 | char *drivename, *devname;
|
---|
518 | if (argc < 4) continue;
|
---|
519 | drivename = argv[1];
|
---|
520 | devname = get_option_val (argc, argv, "device");
|
---|
521 | if (!devname) continue;
|
---|
522 |
|
---|
523 | if (get_option_state (argc, argv, "hotspare")) {
|
---|
524 | strcpy (raidlist->spares.el [raidlist->spares.entries].name, drivename);
|
---|
525 | strcpy (raidlist->spares.el [raidlist->spares.entries].device, devname);
|
---|
526 | raidlist->spares.el [raidlist->spares.entries].index = raidlist->disks.entries;
|
---|
527 | raidlist->spares.entries++;
|
---|
528 | } else {
|
---|
529 | strcpy (raidlist->disks.el [raidlist->disks.entries].name, drivename);
|
---|
530 | strcpy (raidlist->disks.el [raidlist->disks.entries].device, devname);
|
---|
531 | raidlist->disks.el [raidlist->disks.entries].index = raidlist->disks.entries;
|
---|
532 | raidlist->disks.entries++;
|
---|
533 | }
|
---|
534 | }
|
---|
535 | else if (!strcmp (argv[0], "volume")) {
|
---|
536 | char *volname;
|
---|
537 | if (argc < 2) continue;
|
---|
538 | volname = argv[1];
|
---|
539 | strcpy (raidlist->el [raidlist->entries].volname, volname);
|
---|
540 | raidlist->el [raidlist->entries].plexes = 0;
|
---|
541 | raidlist->entries++;
|
---|
542 | }
|
---|
543 | else if (!strcmp (argv[0], "plex")) {
|
---|
544 | int raidlevel, stripesize;
|
---|
545 | char *org = 0;
|
---|
546 | char ** tmp = 0;
|
---|
547 | if (argc < 3) continue;
|
---|
548 | org = get_option_val (argc, argv, "org");
|
---|
549 | if (!org) continue;
|
---|
550 | if (strcmp (org, "concat")) {
|
---|
551 | tmp = get_option_vals (argc, argv, "org", 2);
|
---|
552 | if (tmp && tmp[1]) {
|
---|
553 | stripesize = (int) (size_spec (tmp[1]) / 1024);
|
---|
554 | }
|
---|
555 | else stripesize = 279;
|
---|
556 | }
|
---|
557 | else stripesize = 0;
|
---|
558 |
|
---|
559 | if (!strcmp (org, "concat")) {
|
---|
560 | raidlevel = -1;
|
---|
561 | }
|
---|
562 | else if (!strcmp (org, "striped")) {
|
---|
563 | raidlevel = 0;
|
---|
564 | }
|
---|
565 | else if (!strcmp (org, "raid5")) {
|
---|
566 | raidlevel = 5;
|
---|
567 | }
|
---|
568 | else continue;
|
---|
569 |
|
---|
570 | raidlist->el[raidlist->entries - 1].plex
|
---|
571 | [raidlist->el [raidlist->entries - 1].plexes].raidlevel = raidlevel;
|
---|
572 | raidlist->el[raidlist->entries - 1].plex
|
---|
573 | [raidlist->el [raidlist->entries - 1].plexes].stripesize = stripesize;
|
---|
574 | raidlist->el[raidlist->entries - 1].plex
|
---|
575 | [raidlist->el [raidlist->entries - 1].plexes].subdisks = 0;
|
---|
576 | raidlist->el[raidlist->entries - 1].plexes++;
|
---|
577 | }
|
---|
578 | else if ((!strcmp (argv[0], "sd")) || (!strcmp (argv[0], "subdisk"))) {
|
---|
579 | char *drive = 0;
|
---|
580 | if (argc < 3) continue;
|
---|
581 | drive = get_option_val (argc, argv, "drive");
|
---|
582 | if (!drive) 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 - 1].subdisks].which_device, drive);
|
---|
588 | raidlist->el [raidlist->entries - 1].plex
|
---|
589 | [raidlist->el [raidlist->entries - 1].plexes - 1].subdisks++;
|
---|
590 | }
|
---|
591 | }
|
---|
592 | fclose(fin);
|
---|
593 | log_it("Raidtab loaded successfully.");
|
---|
594 | sprintf(tmp,"%d RAID devices in raidtab", raidlist->entries);
|
---|
595 | log_it(tmp);
|
---|
596 | paranoid_free(tmp);
|
---|
597 | return(0);
|
---|
598 | }
|
---|
599 |
|
---|
600 |
|
---|
601 | #else
|
---|
602 |
|
---|
603 | int load_raidtab_into_raidlist( struct raidlist_itself *raidlist, char *fname)
|
---|
604 |
|
---|
605 | {
|
---|
606 | FILE *fin;
|
---|
607 | char *tmp;
|
---|
608 | char *label;
|
---|
609 | char *value;
|
---|
610 | int items;
|
---|
611 | int v;
|
---|
612 |
|
---|
613 | malloc_string(tmp);
|
---|
614 | malloc_string(label);
|
---|
615 | malloc_string(value);
|
---|
616 | assert(raidlist!=NULL);
|
---|
617 | assert_string_is_neither_NULL_nor_zerolength(fname);
|
---|
618 |
|
---|
619 | if ( length_of_file( fname ) < 5 )
|
---|
620 | {
|
---|
621 | log_it( "Raidtab is very small or non-existent. Ignoring it." );
|
---|
622 | raidlist->entries = 0;
|
---|
623 | paranoid_free(tmp);
|
---|
624 | paranoid_free(label);
|
---|
625 | paranoid_free(value);
|
---|
626 | return( 0 );
|
---|
627 | }
|
---|
628 | if ( !( fin = fopen( fname, "r" ) ) )
|
---|
629 | {
|
---|
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 | {
|
---|
641 | log_msg(1, "Looking for raid record #%d", items);
|
---|
642 | initialize_raidrec( &raidlist->el[items] );
|
---|
643 | v = 0;
|
---|
644 | /* find the 'raiddev' entry, indicating the start of the block of info */
|
---|
645 | while( !feof( fin ) && strcmp( label, "raiddev") )
|
---|
646 | {
|
---|
647 | strcpy( raidlist->el[items].additional_vars.el[v].label, label );
|
---|
648 | strcpy( raidlist->el[items].additional_vars.el[v].value, value );
|
---|
649 | v++;
|
---|
650 | get_next_raidtab_line( fin, label, value );
|
---|
651 | log_it( tmp );
|
---|
652 | }
|
---|
653 | raidlist->el[items].additional_vars.entries = v;
|
---|
654 | if ( feof( fin ) )
|
---|
655 | {
|
---|
656 | log_msg(1, "No more records.");
|
---|
657 | continue;
|
---|
658 | }
|
---|
659 | log_msg(2, "Record #%d (%s) found", items, value);
|
---|
660 | strcpy( raidlist->el[items].raid_device, value );
|
---|
661 | for( get_next_raidtab_line( fin, label, value);
|
---|
662 | !feof( fin ) && strcmp( label, "raiddev" );
|
---|
663 | get_next_raidtab_line( fin, label, value ) )
|
---|
664 | {
|
---|
665 | process_raidtab_line( fin, &raidlist->el[items], label, value );
|
---|
666 | }
|
---|
667 | items++;
|
---|
668 | }
|
---|
669 | paranoid_fclose( fin );
|
---|
670 | raidlist->entries = items;
|
---|
671 | log_msg(1, "Raidtab loaded successfully." );
|
---|
672 | log_msg(1, "%d RAID devices in raidtab", items );
|
---|
673 | paranoid_free(tmp);
|
---|
674 | paranoid_free(label);
|
---|
675 | paranoid_free(value);
|
---|
676 | return( 0 );
|
---|
677 | }
|
---|
678 | #endif
|
---|
679 |
|
---|
680 |
|
---|
681 |
|
---|
682 |
|
---|
683 |
|
---|
684 |
|
---|
685 |
|
---|
686 |
|
---|
687 | #ifndef __FreeBSD__
|
---|
688 | /**
|
---|
689 | * Process a single line from the raidtab and store the results into @p raidrec.
|
---|
690 | * @param fin The stream to read the line from.
|
---|
691 | * @param raidrec The RAID device record to update.
|
---|
692 | * @param label Where to put the label processed.
|
---|
693 | * @param value Where to put the value processed.
|
---|
694 | */
|
---|
695 | void
|
---|
696 | process_raidtab_line( FILE *fin,
|
---|
697 | struct raid_device_record *raidrec,
|
---|
698 | char *label,
|
---|
699 | char *value)
|
---|
700 | {
|
---|
701 |
|
---|
702 | /*@ add mallocs **/
|
---|
703 | char *tmp;
|
---|
704 | char *labelB;
|
---|
705 | char *valueB;
|
---|
706 |
|
---|
707 | struct list_of_disks *disklist;
|
---|
708 | int index;
|
---|
709 | int v;
|
---|
710 |
|
---|
711 | malloc_string(tmp);
|
---|
712 | malloc_string(labelB);
|
---|
713 | malloc_string(valueB);
|
---|
714 | assert(fin!=NULL);
|
---|
715 | assert(raidrec!=NULL);
|
---|
716 | assert_string_is_neither_NULL_nor_zerolength(label);
|
---|
717 | assert(value!=NULL);
|
---|
718 |
|
---|
719 | if (!strcmp( label, "raid-level" ) )
|
---|
720 | {
|
---|
721 | if (!strcmp( value, "linear" ) )
|
---|
722 | { raidrec->raid_level = -1;
|
---|
723 | }
|
---|
724 | else
|
---|
725 | {
|
---|
726 | raidrec->raid_level = atoi(value);
|
---|
727 | }
|
---|
728 | }
|
---|
729 | else if (!strcmp(label,"nr-raid-disks") )
|
---|
730 | { /* ignore it */
|
---|
731 | }
|
---|
732 | else if (!strcmp(label,"nr-spare-disks"))
|
---|
733 | { /* ignore it */
|
---|
734 | }
|
---|
735 | else if (!strcmp(label,"nr-parity-disks"))
|
---|
736 | { /* ignore it */
|
---|
737 | }
|
---|
738 | else if (!strcmp(label,"nr-failed-disks"))
|
---|
739 | { /* ignore it */
|
---|
740 | }
|
---|
741 | else if (!strcmp(label,"persistent-superblock"))
|
---|
742 | {
|
---|
743 | raidrec->persistent_superblock = atoi(value);
|
---|
744 | }
|
---|
745 | else if (!strcmp(label,"chunk-size"))
|
---|
746 | {
|
---|
747 | raidrec->chunk_size = atoi(value);
|
---|
748 | }
|
---|
749 | else if (!strcmp(label,"device"))
|
---|
750 | {
|
---|
751 | get_next_raidtab_line(fin,labelB,valueB);
|
---|
752 | if (!strcmp(labelB,"raid-disk"))
|
---|
753 | {
|
---|
754 | disklist=&raidrec->data_disks;
|
---|
755 | }
|
---|
756 | else if (!strcmp(labelB,"spare-disk"))
|
---|
757 | {
|
---|
758 | disklist=&raidrec->spare_disks;
|
---|
759 | }
|
---|
760 | else if (!strcmp(labelB,"parity-disk"))
|
---|
761 | {
|
---|
762 | disklist=&raidrec->parity_disks;
|
---|
763 | }
|
---|
764 | else if (!strcmp(labelB,"failed-disk"))
|
---|
765 | {
|
---|
766 | disklist=&raidrec->failed_disks;
|
---|
767 | }
|
---|
768 | else
|
---|
769 | {
|
---|
770 | disklist=NULL;
|
---|
771 | }
|
---|
772 | if (!disklist)
|
---|
773 | {
|
---|
774 | sprintf( tmp,
|
---|
775 | "Ignoring '%s %s' pair of disk %s",labelB,valueB,label);
|
---|
776 | log_it(tmp);
|
---|
777 | }
|
---|
778 | else
|
---|
779 | {
|
---|
780 | index = atoi(valueB);
|
---|
781 | add_disk_to_raid_device(disklist,value,index);
|
---|
782 | }
|
---|
783 | }
|
---|
784 | else
|
---|
785 | {
|
---|
786 | v = raidrec->additional_vars.entries;
|
---|
787 | strcpy(raidrec->additional_vars.el[v].label, label);
|
---|
788 | strcpy(raidrec->additional_vars.el[v].value, value);
|
---|
789 | raidrec->additional_vars.entries = ++v;
|
---|
790 | }
|
---|
791 | paranoid_free(tmp);
|
---|
792 | paranoid_free(labelB);
|
---|
793 | paranoid_free(valueB);
|
---|
794 | }
|
---|
795 | #endif
|
---|
796 |
|
---|
797 |
|
---|
798 | /**
|
---|
799 | * Save a disklist to a stream in raidtab format.
|
---|
800 | * @param listname One of "raid-disk", "spare-disk", "parity-disk", or "failed-disk".
|
---|
801 | * @param disklist The disklist to save to @p fout.
|
---|
802 | * @param fout The stream to write to.
|
---|
803 | */
|
---|
804 | void
|
---|
805 | save_disklist_to_file(char *listname,
|
---|
806 | struct list_of_disks *disklist,
|
---|
807 | FILE *fout)
|
---|
808 | {
|
---|
809 | int i;
|
---|
810 |
|
---|
811 | assert_string_is_neither_NULL_nor_zerolength(listname);
|
---|
812 | assert(disklist!=NULL);
|
---|
813 | assert(fout!=NULL);
|
---|
814 |
|
---|
815 | for(i = 0; i < disklist->entries; i++)
|
---|
816 | {
|
---|
817 | fprintf(fout," device %s\n",disklist->el[i].device);
|
---|
818 | fprintf(fout," %-21s %d\n",listname,disklist->el[i].index);
|
---|
819 | }
|
---|
820 | }
|
---|
821 |
|
---|
822 |
|
---|
823 |
|
---|
824 |
|
---|
825 |
|
---|
826 | #ifdef __FreeBSD__
|
---|
827 | /**
|
---|
828 | * Add a new plex to a volume. The index of the plex will be <tt>v-\>plexes - 1</tt>.
|
---|
829 | * @param v The volume to operate on.
|
---|
830 | * @param raidlevel The RAID level of the new plex.
|
---|
831 | * @param stripesize The stripe size (chunk size) of the new plex.
|
---|
832 | */
|
---|
833 | void add_plex_to_volume(struct vinum_volume *v, int raidlevel, int stripesize)
|
---|
834 | {
|
---|
835 | v->plex[v->plexes].raidlevel = raidlevel;
|
---|
836 | v->plex[v->plexes].stripesize = stripesize;
|
---|
837 | v->plex[v->plexes].subdisks = 0;
|
---|
838 | ++v->plexes;
|
---|
839 | }
|
---|
840 |
|
---|
841 | /**
|
---|
842 | * For internal use only.
|
---|
843 | */
|
---|
844 | char ** get_next_vinum_conf_line (FILE *f, int *argc)
|
---|
845 | {
|
---|
846 | int cnt = 0;
|
---|
847 | static char *argv[64];
|
---|
848 | char **ap;
|
---|
849 | char *line = (char *) malloc (MAX_STR_LEN);
|
---|
850 | if (!line) errx (1, "unable to allocate %i bytes of memory for `char *line' at %s:%i",
|
---|
851 | MAX_STR_LEN, __FILE__, __LINE__);
|
---|
852 | (void) fgets (line, MAX_STR_LEN, f);
|
---|
853 | if (feof (f)) {
|
---|
854 | log_it ("[GNVCL] Uh... I reached the EOF.");
|
---|
855 | return 0;
|
---|
856 | }
|
---|
857 |
|
---|
858 | for (ap = argv; (*ap = strsep (&line, " \t")) != NULL;)
|
---|
859 | if (**ap != '\0') {
|
---|
860 | if (++ap >= &argv[64])
|
---|
861 | break;
|
---|
862 | cnt++;
|
---|
863 | }
|
---|
864 |
|
---|
865 | if (strchr (argv[cnt-1], '\n')) {
|
---|
866 | *(strchr (argv[cnt-1], '\n')) = '\0';
|
---|
867 | }
|
---|
868 |
|
---|
869 | if (argc) *argc = cnt;
|
---|
870 | return argv;
|
---|
871 | }
|
---|
872 |
|
---|
873 | /**
|
---|
874 | * For internal use only.
|
---|
875 | */
|
---|
876 | char * get_option_val (int argc, char ** argv, char * option)
|
---|
877 | {
|
---|
878 | int i;
|
---|
879 | for (i = 0; i < (argc - 1); ++i) {
|
---|
880 | if (!strcmp (argv[i], option)) {
|
---|
881 | return argv[i + 1];
|
---|
882 | }
|
---|
883 | }
|
---|
884 | return 0;
|
---|
885 | }
|
---|
886 |
|
---|
887 | /**
|
---|
888 | * For internal use only.
|
---|
889 | */
|
---|
890 | char ** get_option_vals (int argc, char ** argv, char * option, int nval)
|
---|
891 | {
|
---|
892 | int i, j;
|
---|
893 | static char **ret;
|
---|
894 | ret = (char **) malloc (nval * sizeof (char *));
|
---|
895 | for (i = 0; i < (argc - nval); ++i) {
|
---|
896 | if (!strcmp (argv[i], option)) {
|
---|
897 | for (j = 0; j < nval; ++j) {
|
---|
898 | ret[j] = (char *) malloc (strlen (argv[i + j + 1]) + 1);
|
---|
899 | strcpy (ret[j], argv[i + j + 1]);
|
---|
900 | }
|
---|
901 | return ret;
|
---|
902 | }
|
---|
903 | }
|
---|
904 | return 0;
|
---|
905 | }
|
---|
906 |
|
---|
907 | /**
|
---|
908 | * For internal use only.
|
---|
909 | */
|
---|
910 | bool get_option_state (int argc, char ** argv, char * option)
|
---|
911 | {
|
---|
912 | int i;
|
---|
913 | for (i = 0; i < argc; ++i)
|
---|
914 | if (!strcmp (argv[i], option))
|
---|
915 | return TRUE;
|
---|
916 |
|
---|
917 | return FALSE;
|
---|
918 | }
|
---|
919 |
|
---|
920 | /**
|
---|
921 | * Taken from Vinum source -- for internal use only.
|
---|
922 | */
|
---|
923 | long long size_spec(char *spec)
|
---|
924 | {
|
---|
925 | u_int64_t size;
|
---|
926 | char *s;
|
---|
927 | int sign = 1; /* -1 if negative */
|
---|
928 |
|
---|
929 | size = 0;
|
---|
930 | if (spec != NULL) { /* we have a parameter */
|
---|
931 | s = spec;
|
---|
932 | if (*s == '-') { /* negative, */
|
---|
933 | sign = -1;
|
---|
934 | s++; /* skip */
|
---|
935 | }
|
---|
936 | if ((*s >= '0') && (*s <= '9')) { /* it's numeric */
|
---|
937 | while ((*s >= '0') && (*s <= '9')) /* it's numeric */
|
---|
938 | size = size * 10 + *s++ - '0'; /* convert it */
|
---|
939 | switch (*s) {
|
---|
940 | case '\0':
|
---|
941 | return size * sign;
|
---|
942 |
|
---|
943 | case 'B':
|
---|
944 | case 'b':
|
---|
945 | case 'S':
|
---|
946 | case 's':
|
---|
947 | return size * sign * 512;
|
---|
948 |
|
---|
949 | case 'K':
|
---|
950 | case 'k':
|
---|
951 | return size * sign * 1024;
|
---|
952 |
|
---|
953 | case 'M':
|
---|
954 | case 'm':
|
---|
955 | return size * sign * 1024 * 1024;
|
---|
956 |
|
---|
957 | case 'G':
|
---|
958 | case 'g':
|
---|
959 | return size * sign * 1024 * 1024 * 1024;
|
---|
960 |
|
---|
961 | case 'T':
|
---|
962 | case 't':
|
---|
963 | log_it ("Ok, I'm scared... Someone did a TERABYTE+ size-spec");
|
---|
964 | return size * sign * 1024 * 1024 * 1024 * 1024;
|
---|
965 |
|
---|
966 | case 'P':
|
---|
967 | case 'p':
|
---|
968 | log_it ("If I was scared last time, I'm freaked out now. Someone actually has a PETABYTE?!?!?!?!");
|
---|
969 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024;
|
---|
970 |
|
---|
971 | case 'E':
|
---|
972 | case 'e':
|
---|
973 | log_it ("Okay, I'm REALLY freaked out. Who could devote a whole EXABYTE to their data?!?!");
|
---|
974 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 * 1024;
|
---|
975 |
|
---|
976 | case 'Z':
|
---|
977 | case 'z':
|
---|
978 | log_it ("WHAT!?!? A ZETABYTE!?!? You've GOT to be kidding me!!!");
|
---|
979 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024;
|
---|
980 |
|
---|
981 | case 'Y':
|
---|
982 | case 'y':
|
---|
983 | log_it ("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?!?!");
|
---|
984 | popup_and_OK ("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 :-)");
|
---|
985 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024;
|
---|
986 | }
|
---|
987 | }
|
---|
988 | }
|
---|
989 | return size * sign;
|
---|
990 | }
|
---|
991 |
|
---|
992 | #endif
|
---|
993 |
|
---|
994 |
|
---|
995 |
|
---|
996 |
|
---|
997 | int read_mdstat(struct s_mdstat *mdstat, char*mdstat_file)
|
---|
998 | {
|
---|
999 | FILE*fin;
|
---|
1000 | char*tmp;
|
---|
1001 | char*stub;
|
---|
1002 | char*incoming;
|
---|
1003 | char*raid_devname;
|
---|
1004 | char*p, *q, *r;
|
---|
1005 | int diskno;
|
---|
1006 |
|
---|
1007 | malloc_string(tmp);
|
---|
1008 | malloc_string(stub);
|
---|
1009 | malloc_string(incoming);
|
---|
1010 | malloc_string(raid_devname);
|
---|
1011 | if (!(fin = fopen(mdstat_file, "r")))
|
---|
1012 | {
|
---|
1013 | log_msg(1, "%s not found", mdstat_file);
|
---|
1014 | return(1);
|
---|
1015 | }
|
---|
1016 | mdstat->entries = 0;
|
---|
1017 | for (fgets(incoming, MAX_STR_LEN - 1, fin); !feof(fin); fgets(incoming, MAX_STR_LEN - 1, fin))
|
---|
1018 | {
|
---|
1019 | p = incoming;
|
---|
1020 | if (*p != 'm' && *(p+1) == 'm') { p++; }
|
---|
1021 | if (strncmp(p, "md", 2)) { continue; }
|
---|
1022 | // read first line --- mdN : active raidX ............
|
---|
1023 | mdstat->el[mdstat->entries].md = atoi(p+2);
|
---|
1024 | log_msg(8, "Storing /dev/md%d's info", atoi(p+2));
|
---|
1025 | while(*p != ':' && *p) { p++; }
|
---|
1026 | while((*p!='r' || *(p+1)!='a') && *p) { p++; }
|
---|
1027 | if (!strncmp(p, "raid", 4))
|
---|
1028 | {
|
---|
1029 | mdstat->el[mdstat->entries].raidlevel = *(p+4) - '0';
|
---|
1030 | }
|
---|
1031 | p += 4;
|
---|
1032 | while(*p!=' '&& *p) { p++; }
|
---|
1033 | while(*p==' '&& *p) { p++; }
|
---|
1034 | for(diskno=0; *p; diskno++)
|
---|
1035 | {
|
---|
1036 | strcpy(stub, p);
|
---|
1037 | // log_msg(1, "diskno=%d; tmp=%s", diskno, tmp);
|
---|
1038 | q = strchr(stub, '[');
|
---|
1039 | if (q)
|
---|
1040 | {
|
---|
1041 | *q = '\0';
|
---|
1042 | q++;
|
---|
1043 | r = strchr(q, ']');
|
---|
1044 | if (r) { *r='\0'; }
|
---|
1045 | mdstat->el[mdstat->entries].disks.el[diskno].index = atoi(q);
|
---|
1046 | }
|
---|
1047 | else
|
---|
1048 | {
|
---|
1049 | mdstat->el[mdstat->entries].disks.el[diskno].index = -1;
|
---|
1050 | q = strchr(stub, ' ');
|
---|
1051 | if (q) { *q = '\0'; }
|
---|
1052 | }
|
---|
1053 | sprintf(tmp, "/dev/%s", stub);
|
---|
1054 | log_msg(8, "/dev/md%d : disk#%d : %s (%d)", mdstat->el[mdstat->entries].md, diskno, tmp, mdstat->el[mdstat->entries].disks.el[diskno].index);
|
---|
1055 | strcpy(mdstat->el[mdstat->entries].disks.el[diskno].device, tmp);
|
---|
1056 | while(*p!=' '&& *p) { p++; }
|
---|
1057 | while(*p==' '&& *p) { p++; }
|
---|
1058 | }
|
---|
1059 | mdstat->el[mdstat->entries].disks.entries = diskno;
|
---|
1060 | // next line --- skip it
|
---|
1061 | if (!feof(fin)) { fgets(incoming, MAX_STR_LEN - 1, fin); } else {continue; }
|
---|
1062 | // next line --- the 'progress' line
|
---|
1063 | if (!feof(fin)) { fgets(incoming, MAX_STR_LEN - 1, fin); } else {continue; }
|
---|
1064 | // log_msg(1, "Percentage line = '%s'", incoming);
|
---|
1065 | if (!(p=strchr(incoming, '\%')))
|
---|
1066 | {
|
---|
1067 | mdstat->el[mdstat->entries].progress = 999; // not found
|
---|
1068 | }
|
---|
1069 | else if (strstr(incoming, "DELAYED"))
|
---|
1070 | {
|
---|
1071 | mdstat->el[mdstat->entries].progress = -1; // delayed (therefore, stuck at 0%)
|
---|
1072 | }
|
---|
1073 | else
|
---|
1074 | {
|
---|
1075 | for(*p='\0'; *p!=' '; p--);
|
---|
1076 | mdstat->el[mdstat->entries].progress = atoi(p);
|
---|
1077 | }
|
---|
1078 | log_msg(8, "progress =%d", mdstat->el[mdstat->entries].progress);
|
---|
1079 | mdstat->entries ++;
|
---|
1080 | }
|
---|
1081 | fclose(fin);
|
---|
1082 | paranoid_free(tmp);
|
---|
1083 | paranoid_free(stub);
|
---|
1084 | paranoid_free(incoming);
|
---|
1085 | paranoid_free(raid_devname);
|
---|
1086 | return(0);
|
---|
1087 | }
|
---|
1088 |
|
---|
1089 |
|
---|
1090 |
|
---|
1091 | int create_raidtab_from_mdstat(char*raidtab_fname, char *mdstat_fname)
|
---|
1092 | {
|
---|
1093 | struct raidlist_itself *raidlist;
|
---|
1094 | struct s_mdstat *mdstat;
|
---|
1095 | int retval=0;
|
---|
1096 | int i;
|
---|
1097 |
|
---|
1098 | raidlist = malloc(sizeof(struct raidlist_itself));
|
---|
1099 | mdstat = malloc(sizeof(struct s_mdstat));
|
---|
1100 |
|
---|
1101 | if (read_mdstat(mdstat, mdstat_fname))
|
---|
1102 | { log_to_screen("Sorry, cannot read %s", mdstat_fname); return(1); }
|
---|
1103 |
|
---|
1104 | for(i=0; i<mdstat->entries; i++)
|
---|
1105 | {
|
---|
1106 | sprintf(raidlist->el[i].raid_device, "/dev/md%d", 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, (void*)&mdstat->el[i].disks, sizeof(struct list_of_disks));
|
---|
1111 | // FIXME --- the above line does not allow for spare disks
|
---|
1112 | log_to_screen("FIXME - create_raidtab_from_mdstat does not allow for spare disks");
|
---|
1113 | }
|
---|
1114 | raidlist->entries = i;
|
---|
1115 | retval += save_raidlist_to_raidtab(raidlist, raidtab_fname);
|
---|
1116 | return(retval);
|
---|
1117 | }
|
---|
1118 |
|
---|
1119 |
|
---|
1120 |
|
---|
1121 | /* @} - end of raidGroup */
|
---|
1122 |
|
---|