1 | /* $Id: libmondo-raid.c 87 2005-10-27 20:03:00Z bcornec $
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2 | subroutines for handling RAID
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3 | */
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4 |
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5 | /**
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6 | * @file
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7 | * Functions for handling RAID (especially during restore).
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8 | */
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9 |
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10 | #include "my-stuff.h"
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11 | #include "mondostructures.h"
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12 | #include "libmondo-gui-EXT.h"
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13 | #include "libmondo-files-EXT.h"
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14 | #include "libmondo-tools-EXT.h"
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15 | #include "libmondo-string-EXT.h"
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16 | #include "lib-common-externs.h"
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17 | #include "libmondo-raid.h"
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18 |
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19 | #ifdef __FreeBSD__
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20 | /* Nonstandard library functions: */
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21 | extern void errx(int exitval, const char *fmt, ...);
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22 | extern char *strsep(char **stringp, const char *delim);
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23 | #endif
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24 |
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25 | /*@unused@*/
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26 | //static char cvsid[] = "$Id: libmondo-raid.c 87 2005-10-27 20:03:00Z bcornec $";
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27 |
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28 |
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29 | /**
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30 | * @addtogroup raidGroup
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31 | * @{
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32 | */
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33 | /**
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34 | * See if a particular RAID level is supported by the kernel.
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35 | * @param raidno The RAID level (-1 through 5) to check. -1 means "linear" under Linux and
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36 | * "concatenated" under FreeBSD. It's really the same thing, just different wording.
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37 | * @return TRUE if it's supported, FALSE if not.
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38 | */
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39 | bool is_this_raid_personality_registered(int raidno)
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40 | {
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41 | #ifdef __FreeBSD__
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42 | return ((raidno == -1) || (raidno == 0) || (raidno == 1)
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43 | || (raidno == 5)) ? TRUE : FALSE;
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44 | #else
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45 | /*@ buffer ********************************************************** */
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46 | char *command;
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47 | int res;
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48 |
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49 | if (raidno == -1) {
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50 | asprintf(&command,
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51 | "cat /proc/mdstat | grep \"linear\" > /dev/null 2> /dev/null");
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52 | } else {
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53 | asprintf(&command,
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54 | "cat /proc/mdstat | grep \"raid%d\" > /dev/null 2> /dev/null",
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55 | raidno);
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56 | }
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57 | log_it("Is raid %d registered? Command = '%s'", raidno, command);
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58 | res = system(command);
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59 | paranoid_free(command);
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60 | if (res) {
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61 | return (FALSE);
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62 | } else {
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63 | return (TRUE);
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64 | }
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65 | #endif
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66 | }
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67 |
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68 |
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69 | /**
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70 | * Search for @p device in @p disklist.
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71 | * @param disklist The disklist to search in.
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72 | * @param device The device to search for.
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73 | * @return The index number of @p device, or -1 if it does not exist.
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74 | */
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75 | int
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76 | where_in_drivelist_is_drive(struct list_of_disks *disklist, char *device)
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77 | {
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78 |
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79 | /*@ int ************************************************************* */
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80 | int i = 0;
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81 |
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82 | assert(disklist != NULL);
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83 | assert_string_is_neither_NULL_nor_zerolength(device);
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84 |
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85 | for (i = 0; i < disklist->entries; i++) {
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86 | if (!strcmp(disklist->el[i].device, device)) {
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87 | break;
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88 | }
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89 | }
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90 | if (i == disklist->entries) {
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91 | return (-1);
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92 | } else {
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93 | return (i);
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94 | }
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95 | }
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96 |
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97 | /**
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98 | * Determine which RAID device is using a particular partition.
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99 | * @param raidlist The RAID information structure.
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100 | * @param device The partition to find out about.
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101 | * @return The index number of the RAID device using @p device, or -1 if there is none.
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102 | */
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103 | int
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104 | which_raid_device_is_using_this_partition(struct raidlist_itself *raidlist,
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105 | char *device)
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106 | {
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107 | #ifdef __FreeBSD__
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108 | // FreeBSD-specific version of which_raid_device_is_using_this_partition()
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109 | /*@ int ********************************************************* */
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110 | int i = 0;
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111 |
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112 | for (i = 0; i < raidlist->entries; i++) {
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113 | bool thisone = FALSE;
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114 | int j, k, l;
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115 |
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116 | for (j = 0; j < raidlist->el[i].plexes; ++j) {
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117 | for (k = 0; k < raidlist->el[i].plex[j].subdisks; ++k) {
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118 | for (l = 0; l < raidlist->disks.entries; ++l) {
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119 | if (!strcmp(raidlist->disks.el[l].device,
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120 | device) &&
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121 | !strcmp(raidlist->el[i].plex[j].sd[k].which_device,
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122 | raidlist->disks.el[l].name))
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123 | thisone = TRUE;
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124 | }
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125 | }
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126 | }
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127 |
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128 | if (thisone) {
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129 | break;
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130 | }
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131 | }
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132 | if (i == raidlist->entries) {
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133 | return (-1);
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134 | } else {
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135 | return (i);
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136 | }
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137 | }
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138 |
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139 | #else
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140 | // Linux-specific version of which_raid_device_is_using_this_partition()
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141 | // and one other function which FreeBSD doesn't use
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142 |
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143 | int current_raiddev = 0;
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144 |
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145 | assert_string_is_neither_NULL_nor_zerolength(device);
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146 | assert(raidlist != NULL);
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147 |
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148 | for (current_raiddev = 0; current_raiddev < raidlist->entries;
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149 | current_raiddev++) {
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150 | if (where_in_drivelist_is_drive
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151 | (&raidlist->el[current_raiddev].data_disks, device) >= 0
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152 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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153 | spare_disks, device) >= 0
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154 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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155 | parity_disks, device) >= 0
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156 | || where_in_drivelist_is_drive(&raidlist->el[current_raiddev].
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157 | failed_disks, device) >= 0) {
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158 | break;
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159 | }
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160 | }
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161 | if (current_raiddev == raidlist->entries) {
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162 | return (-1);
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163 | } else {
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164 | return (current_raiddev);
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165 | }
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166 | }
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167 |
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168 | /**
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169 | * Write an @c int variable to a list of RAID variables.
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170 | * @param raidrec The RAID device record to write to.
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171 | * @param lino The variable index number to modify/create.
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172 | * @param label The label to write.
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173 | * @param value The value to write.
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174 | */
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175 | void
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176 | write_variableINT_to_raid_var_line(struct raid_device_record *raidrec,
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177 | int lino, char *label, int value)
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178 | {
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179 | /*@ buffers ***************************************************** */
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180 | char *sz_value;
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181 |
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182 | assert(raidrec != NULL);
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183 | assert(label != NULL);
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184 |
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185 | asprintf(&sz_value, "%d", value);
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186 | strcpy(raidrec->additional_vars.el[lino].label, label);
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187 | strcpy(raidrec->additional_vars.el[lino].value, sz_value);
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188 | paranoid_free(sz_value);
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189 | }
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190 | #endif
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191 |
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192 | #ifdef __FreeBSD__
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193 | /**
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194 | * Add a disk to a RAID plex.
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195 | * @param p The plex to add the device to.
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196 | * @param device_to_add The device to add to @p p.
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197 | */
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198 | void add_disk_to_raid_device(struct vinum_plex *p, char *device_to_add)
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199 | {
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200 | strcpy(p->sd[p->subdisks].which_device, device_to_add);
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201 | ++p->subdisks;
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202 |
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203 | }
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204 | #else
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205 | /**
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206 | * Add a disk to a RAID device.
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207 | * @param disklist The disklist to add the device to.
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208 | * @param device_to_add The device to add to @p disklist.
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209 | * @param index The index number of the disklist entry we're creating.
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210 | */
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211 | void add_disk_to_raid_device(struct list_of_disks *disklist,
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212 | char *device_to_add, int index)
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213 | {
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214 | int items;
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215 |
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216 | assert(disklist != NULL);
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217 | assert_string_is_neither_NULL_nor_zerolength(device_to_add);
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218 | items = disklist->entries;
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219 | strcpy(disklist->el[items].device, device_to_add);
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220 | disklist->el[items].index = index;
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221 | items++;
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222 | disklist->entries = items;
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223 | }
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224 | #endif
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225 |
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226 | /**
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227 | * Save the additional RAID variables to a stream.
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228 | * @param vars The RAID variable list to save.
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229 | * @param fout The FILE pointer to save them to.
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230 | */
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231 | void
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232 | save_additional_vars_to_file(struct additional_raid_variables *vars,
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233 | FILE * fout)
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234 | {
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235 | int i;
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236 |
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237 | assert(vars != NULL);
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238 | assert(fout != NULL);
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239 |
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240 | for (i = 0; i < vars->entries; i++) {
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241 | fprintf(fout, " %-21s %s\n", vars->el[i].label,
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242 | vars->el[i].value);
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243 | }
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244 | }
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245 |
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246 |
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247 | /**
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248 | * Save a raidlist structure to disk in raidtab format.
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249 | * @param raidlist The raidlist to save.
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250 | * @param fname The file to save it to.
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251 | * @return 0, always.
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252 | * @bug Return value is redundant.
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253 | */
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254 | int save_raidlist_to_raidtab(struct raidlist_itself *raidlist, char *fname)
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255 | {
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256 | FILE *fout;
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257 | int current_raid_device;
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258 | #ifdef __FreeBSD__
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259 | int i;
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260 | #else
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261 | // Linux
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262 | #endif
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263 |
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264 | assert(raidlist != NULL);
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265 | assert_string_is_neither_NULL_nor_zerolength(fname);
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266 |
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267 | if (raidlist->entries <= 0) {
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268 | unlink(fname);
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269 | log_it("Deleting raidtab (no RAID devs anyway)");
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270 | return (0);
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271 | }
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272 | if (!(fout = fopen(fname, "w"))) {
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273 | log_OS_error("Failed to save raidlist");
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274 | return (1);
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275 | }
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276 | fprintf(fout, "# Generated by Mondo Rescue\n");
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277 |
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278 | #ifdef __FreeBSD__
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279 | for (i = 0; i < raidlist->disks.entries; ++i) {
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280 | fprintf(fout, "drive %s device %s\n", raidlist->disks.el[i].name,
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281 | raidlist->disks.el[i].device);
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282 | }
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283 | for (i = 0; i < (raidlist->spares.entries); ++i) {
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284 | fprintf(fout, "drive %s device %s hotspare\n",
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285 | raidlist->spares.el[i].name,
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286 | raidlist->spares.el[i].device);
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287 | }
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288 | #endif
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289 |
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290 | for (current_raid_device = 0; current_raid_device < raidlist->entries;
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291 | current_raid_device++) {
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292 | save_raidrec_to_file(&raidlist->el[current_raid_device], fout);
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293 | }
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294 | paranoid_fclose(fout);
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295 | return (0);
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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 an individual RAID device record to a stream.
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301 | * @param raidrec The RAID device record to save.
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302 | * @param fout The stream to save it to.
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303 | */
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304 | void save_raidrec_to_file(struct
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305 | #ifdef __FreeBSD__
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306 | vinum_volume
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307 | #else
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308 | raid_device_record
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309 | #endif
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310 | * raidrec, FILE * fout)
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311 | {
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312 | #ifdef __FreeBSD__
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313 | int i, j;
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314 |
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315 | fprintf(fout, "\nvolume %s\n", raidrec->volname);
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316 | for (i = 0; i < raidrec->plexes; ++i) {
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317 | char *org;
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318 | switch (raidrec->plex[i].raidlevel) {
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319 | case -1:
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320 | asprintf(&org, "%s", "concat");
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321 | break;
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322 | case 0:
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323 | asprintf(&org, "%s", "striped");
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324 | break;
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325 | case 5:
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326 | asprintf(&org, "%s", "raid5");
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327 | break;
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328 | }
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329 | fprintf(fout, " plex org %s", org);
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330 | paranoid_free(org);
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331 |
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332 | if (raidrec->plex[i].raidlevel != -1) {
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333 | fprintf(fout, " %ik", raidrec->plex[i].stripesize);
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334 | }
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335 | fprintf(fout, "\n");
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336 |
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337 | for (j = 0; j < raidrec->plex[i].subdisks; ++j) {
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338 | fprintf(fout, " sd drive %s size 0\n",
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339 | raidrec->plex[i].sd[j].which_device);
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340 | }
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341 | }
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342 | #else
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343 | assert(raidrec != NULL);
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344 | assert(fout != NULL);
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345 |
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346 | fprintf(fout, "raiddev %s\n", raidrec->raid_device);
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347 | if (raidrec->raid_level == -1) {
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348 | fprintf(fout, " raid-level linear\n");
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349 | } else {
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350 | fprintf(fout, " raid-level %d\n",
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351 | raidrec->raid_level);
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352 | }
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353 | fprintf(fout, " chunk-size %d\n", raidrec->chunk_size);
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354 | fprintf(fout, " nr-raid-disks %d\n",
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355 | raidrec->data_disks.entries);
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356 | fprintf(fout, " nr-spare-disks %d\n",
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357 | raidrec->spare_disks.entries);
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358 | if (raidrec->parity_disks.entries > 0) {
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359 | fprintf(fout, " nr-parity-disks %d\n",
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360 | raidrec->parity_disks.entries);
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361 | }
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362 |
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363 | fprintf(fout, " persistent-superblock %d\n",
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364 | raidrec->persistent_superblock);
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365 | save_additional_vars_to_file(&raidrec->additional_vars, fout);
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366 | fprintf(fout, "\n");
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367 | save_disklist_to_file("raid-disk", &raidrec->data_disks, fout);
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368 | save_disklist_to_file("spare-disk", &raidrec->spare_disks, fout);
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369 | save_disklist_to_file("parity-disk", &raidrec->parity_disks, fout);
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370 | save_disklist_to_file("failed-disk", &raidrec->failed_disks, fout);
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371 | fprintf(fout, "\n");
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372 | #endif
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373 | }
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374 |
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375 | /**
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376 | * Retrieve the next line from a raidtab stream.
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377 | * @param fin The file to read the input from.
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378 | * @param label Where to put the line's label.
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379 | * @param value Where to put the line's value.
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380 | * @return 0 if the line was read and stored successfully, 1 if we're at end of file.
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381 | */
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382 | int get_next_raidtab_line(FILE * fin, char *label, char *value)
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383 | {
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384 | char *incoming = NULL;
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385 | char *p;
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386 | size_t n = 0;
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387 |
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388 | assert(fin != NULL);
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389 | assert(label != NULL);
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390 | assert(value != NULL);
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391 |
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392 | label[0] = value[0] = '\0';
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393 | if (feof(fin)) {
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394 | return (1);
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395 | }
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396 |
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397 | for (getline(&incoming, &n, fin); !feof(fin);
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398 | getline(&incoming, &n, fin)) {
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399 | strip_spaces(incoming);
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400 | p = strchr(incoming, ' ');
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401 | if (strlen(incoming) < 3 || incoming[0] == '#' || !p) {
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402 | continue;
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403 | }
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404 | *(p++) = '\0';
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405 | while (*p == ' ') {
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406 | p++;
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407 | }
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408 | strcpy(label, incoming);
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409 | strcpy(value, p);
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410 | paranoid_free(incoming);
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411 | return (0);
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412 | }
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413 | paranoid_free(incoming);
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414 | return (1);
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415 | }
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416 |
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417 |
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418 | /**
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419 | * Load a raidtab file into a raidlist structure.
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420 | * @param raidlist The raidlist to fill.
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421 | * @param fname The file to read from.
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422 | * @return 0 for success, 1 for failure.
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423 | */
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424 | #ifdef __FreeBSD__
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425 | int load_raidtab_into_raidlist(struct raidlist_itself *raidlist,
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426 | char *fname)
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427 | {
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428 | FILE *fin;
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429 | char *tmp1;
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430 | int items;
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431 |
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432 | raidlist->spares.entries = 0;
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433 | raidlist->disks.entries = 0;
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434 | if (length_of_file(fname) < 5) {
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435 | log_it("Raidtab is very small or non-existent. Ignoring it.");
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436 | raidlist->entries = 0;
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437 | return (0);
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438 | }
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439 | if (!(fin = fopen(fname, "r"))) {
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440 | log_it("Cannot open raidtab");
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441 | return (1);
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442 | }
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443 | items = 0;
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444 | log_it("Loading raidtab...");
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445 | while (!feof(fin)) {
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446 | int argc;
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447 | char **argv = get_next_vinum_conf_line(fin, &argc);
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448 | if (!argv)
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449 | break;
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450 | if (!strcmp(argv[0], "drive")) {
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451 | char *drivename, *devname;
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452 | if (argc < 4)
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453 | continue;
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454 | drivename = argv[1];
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455 | devname = get_option_val(argc, argv, "device");
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456 | if (!devname)
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457 | continue;
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458 |
|
---|
459 | if (get_option_state(argc, argv, "hotspare")) {
|
---|
460 | strcpy(raidlist->spares.el[raidlist->spares.entries].name,
|
---|
461 | drivename);
|
---|
462 | strcpy(raidlist->spares.el[raidlist->spares.entries].
|
---|
463 | device, devname);
|
---|
464 | raidlist->spares.el[raidlist->spares.entries].index =
|
---|
465 | raidlist->disks.entries;
|
---|
466 | raidlist->spares.entries++;
|
---|
467 | } else {
|
---|
468 | strcpy(raidlist->disks.el[raidlist->disks.entries].name,
|
---|
469 | drivename);
|
---|
470 | strcpy(raidlist->disks.el[raidlist->disks.entries].device,
|
---|
471 | devname);
|
---|
472 | raidlist->disks.el[raidlist->disks.entries].index =
|
---|
473 | raidlist->disks.entries;
|
---|
474 | raidlist->disks.entries++;
|
---|
475 | }
|
---|
476 | } else if (!strcmp(argv[0], "volume")) {
|
---|
477 | char *volname;
|
---|
478 | if (argc < 2)
|
---|
479 | continue;
|
---|
480 | volname = argv[1];
|
---|
481 | strcpy(raidlist->el[raidlist->entries].volname, volname);
|
---|
482 | raidlist->el[raidlist->entries].plexes = 0;
|
---|
483 | raidlist->entries++;
|
---|
484 | } else if (!strcmp(argv[0], "plex")) {
|
---|
485 | int raidlevel, stripesize;
|
---|
486 | char *org = 0;
|
---|
487 | char **tmp = 0;
|
---|
488 | if (argc < 3)
|
---|
489 | continue;
|
---|
490 | org = get_option_val(argc, argv, "org");
|
---|
491 | if (!org)
|
---|
492 | continue;
|
---|
493 | if (strcmp(org, "concat")) {
|
---|
494 | tmp = get_option_vals(argc, argv, "org", 2);
|
---|
495 | if (tmp && tmp[1]) {
|
---|
496 | stripesize = (int) (size_spec(tmp[1]) / 1024);
|
---|
497 | } else
|
---|
498 | stripesize = 279;
|
---|
499 | } else
|
---|
500 | stripesize = 0;
|
---|
501 |
|
---|
502 | if (!strcmp(org, "concat")) {
|
---|
503 | raidlevel = -1;
|
---|
504 | } else if (!strcmp(org, "striped")) {
|
---|
505 | raidlevel = 0;
|
---|
506 | } else if (!strcmp(org, "raid5")) {
|
---|
507 | raidlevel = 5;
|
---|
508 | } else
|
---|
509 | continue;
|
---|
510 |
|
---|
511 | raidlist->el[raidlist->entries - 1].plex
|
---|
512 | [raidlist->el[raidlist->entries - 1].plexes].raidlevel =
|
---|
513 | raidlevel;
|
---|
514 | raidlist->el[raidlist->entries -
|
---|
515 | 1].plex[raidlist->el[raidlist->entries -
|
---|
516 | 1].plexes].stripesize =
|
---|
517 | stripesize;
|
---|
518 | raidlist->el[raidlist->entries -
|
---|
519 | 1].plex[raidlist->el[raidlist->entries -
|
---|
520 | 1].plexes].subdisks = 0;
|
---|
521 | raidlist->el[raidlist->entries - 1].plexes++;
|
---|
522 | } else if ((!strcmp(argv[0], "sd"))
|
---|
523 | || (!strcmp(argv[0], "subdisk"))) {
|
---|
524 | char *drive = 0;
|
---|
525 | if (argc < 3)
|
---|
526 | continue;
|
---|
527 | drive = get_option_val(argc, argv, "drive");
|
---|
528 | if (!drive)
|
---|
529 | continue;
|
---|
530 |
|
---|
531 | strcpy(raidlist->el[raidlist->entries - 1].plex
|
---|
532 | [raidlist->el[raidlist->entries - 1].plexes - 1].sd
|
---|
533 | [raidlist->el[raidlist->entries - 1].plex
|
---|
534 | [raidlist->el[raidlist->entries - 1].plexes -
|
---|
535 | 1].subdisks].which_device, drive);
|
---|
536 | raidlist->el[raidlist->entries -
|
---|
537 | 1].plex[raidlist->el[raidlist->entries -
|
---|
538 | 1].plexes - 1].subdisks++;
|
---|
539 | }
|
---|
540 | }
|
---|
541 | fclose(fin);
|
---|
542 | log_it("Raidtab loaded successfully.");
|
---|
543 | asprintf(&tmp1, "%d RAID devices in raidtab", raidlist->entries);
|
---|
544 | log_it(tmp1);
|
---|
545 | paranoid_free(tmp1);
|
---|
546 | return (0);
|
---|
547 | }
|
---|
548 |
|
---|
549 |
|
---|
550 | #else
|
---|
551 |
|
---|
552 | int load_raidtab_into_raidlist(struct raidlist_itself *raidlist,
|
---|
553 | char *fname)
|
---|
554 | {
|
---|
555 | FILE *fin;
|
---|
556 | char *label;
|
---|
557 | char *value;
|
---|
558 | int items;
|
---|
559 | int v;
|
---|
560 |
|
---|
561 | assert(raidlist != NULL);
|
---|
562 | assert_string_is_neither_NULL_nor_zerolength(fname);
|
---|
563 |
|
---|
564 | if (length_of_file(fname) < 5) {
|
---|
565 | log_it("Raidtab is very small or non-existent. Ignoring it.");
|
---|
566 | raidlist->entries = 0;
|
---|
567 | return (0);
|
---|
568 | }
|
---|
569 | if (!(fin = fopen(fname, "r"))) {
|
---|
570 | log_it("Cannot open raidtab");
|
---|
571 | return (1);
|
---|
572 | }
|
---|
573 | items = 0;
|
---|
574 | log_it("Loading raidtab...");
|
---|
575 | malloc_string(label);
|
---|
576 | malloc_string(value);
|
---|
577 | get_next_raidtab_line(fin, label, value);
|
---|
578 | while (!feof(fin)) {
|
---|
579 | log_msg(1, "Looking for raid record #%d", items);
|
---|
580 | initialize_raidrec(&raidlist->el[items]);
|
---|
581 | v = 0;
|
---|
582 | /* find the 'raiddev' entry, indicating the start of the block of info */
|
---|
583 | while (!feof(fin) && strcmp(label, "raiddev")) {
|
---|
584 | strcpy(raidlist->el[items].additional_vars.el[v].label, label);
|
---|
585 | strcpy(raidlist->el[items].additional_vars.el[v].value, value);
|
---|
586 | v++;
|
---|
587 | get_next_raidtab_line(fin, label, value);
|
---|
588 | }
|
---|
589 | raidlist->el[items].additional_vars.entries = v;
|
---|
590 | if (feof(fin)) {
|
---|
591 | log_msg(1, "No more records.");
|
---|
592 | continue;
|
---|
593 | }
|
---|
594 | log_msg(2, "Record #%d (%s) found", items, value);
|
---|
595 | strcpy(raidlist->el[items].raid_device, value);
|
---|
596 | for (get_next_raidtab_line(fin, label, value);
|
---|
597 | !feof(fin) && strcmp(label, "raiddev");
|
---|
598 | get_next_raidtab_line(fin, label, value)) {
|
---|
599 | process_raidtab_line(fin, &raidlist->el[items], label, value);
|
---|
600 | }
|
---|
601 | items++;
|
---|
602 | }
|
---|
603 | paranoid_fclose(fin);
|
---|
604 | raidlist->entries = items;
|
---|
605 | log_msg(1, "Raidtab loaded successfully.");
|
---|
606 | log_msg(1, "%d RAID devices in raidtab", items);
|
---|
607 | paranoid_free(label);
|
---|
608 | paranoid_free(value);
|
---|
609 | return (0);
|
---|
610 | }
|
---|
611 | #endif
|
---|
612 |
|
---|
613 |
|
---|
614 | #ifndef __FreeBSD__
|
---|
615 | /**
|
---|
616 | * Process a single line from the raidtab and store the results into @p raidrec.
|
---|
617 | * @param fin The stream to read the line from.
|
---|
618 | * @param raidrec The RAID device record to update.
|
---|
619 | * @param label Where to put the label processed.
|
---|
620 | * @param value Where to put the value processed.
|
---|
621 | */
|
---|
622 | void
|
---|
623 | process_raidtab_line(FILE * fin,
|
---|
624 | struct raid_device_record *raidrec,
|
---|
625 | char *label, char *value)
|
---|
626 | {
|
---|
627 |
|
---|
628 | /*@ add mallocs * */
|
---|
629 | char *tmp;
|
---|
630 | char *labelB;
|
---|
631 | char *valueB;
|
---|
632 |
|
---|
633 | struct list_of_disks *disklist;
|
---|
634 | int index;
|
---|
635 | int v;
|
---|
636 |
|
---|
637 | malloc_string(labelB);
|
---|
638 | malloc_string(valueB);
|
---|
639 | assert(fin != NULL);
|
---|
640 | assert(raidrec != NULL);
|
---|
641 | assert_string_is_neither_NULL_nor_zerolength(label);
|
---|
642 | assert(value != NULL);
|
---|
643 |
|
---|
644 | if (!strcmp(label, "raid-level")) {
|
---|
645 | if (!strcmp(value, "linear")) {
|
---|
646 | raidrec->raid_level = -1;
|
---|
647 | } else {
|
---|
648 | raidrec->raid_level = atoi(value);
|
---|
649 | }
|
---|
650 | } else if (!strcmp(label, "nr-raid-disks")) { /* ignore it */
|
---|
651 | } else if (!strcmp(label, "nr-spare-disks")) { /* ignore it */
|
---|
652 | } else if (!strcmp(label, "nr-parity-disks")) { /* ignore it */
|
---|
653 | } else if (!strcmp(label, "nr-failed-disks")) { /* ignore it */
|
---|
654 | } else if (!strcmp(label, "persistent-superblock")) {
|
---|
655 | raidrec->persistent_superblock = atoi(value);
|
---|
656 | } else if (!strcmp(label, "chunk-size")) {
|
---|
657 | raidrec->chunk_size = atoi(value);
|
---|
658 | } else if (!strcmp(label, "device")) {
|
---|
659 | get_next_raidtab_line(fin, labelB, valueB);
|
---|
660 | if (!strcmp(labelB, "raid-disk")) {
|
---|
661 | disklist = &raidrec->data_disks;
|
---|
662 | } else if (!strcmp(labelB, "spare-disk")) {
|
---|
663 | disklist = &raidrec->spare_disks;
|
---|
664 | } else if (!strcmp(labelB, "parity-disk")) {
|
---|
665 | disklist = &raidrec->parity_disks;
|
---|
666 | } else if (!strcmp(labelB, "failed-disk")) {
|
---|
667 | disklist = &raidrec->failed_disks;
|
---|
668 | } else {
|
---|
669 | disklist = NULL;
|
---|
670 | }
|
---|
671 | if (!disklist) {
|
---|
672 | asprintf(&tmp,
|
---|
673 | "Ignoring '%s %s' pair of disk %s", labelB, valueB,
|
---|
674 | label);
|
---|
675 | log_it(tmp);
|
---|
676 | paranoid_free(tmp);
|
---|
677 | } else {
|
---|
678 | index = atoi(valueB);
|
---|
679 | add_disk_to_raid_device(disklist, value, index);
|
---|
680 | }
|
---|
681 | } else {
|
---|
682 | v = raidrec->additional_vars.entries;
|
---|
683 | strcpy(raidrec->additional_vars.el[v].label, label);
|
---|
684 | strcpy(raidrec->additional_vars.el[v].value, value);
|
---|
685 | raidrec->additional_vars.entries = ++v;
|
---|
686 | }
|
---|
687 | paranoid_free(labelB);
|
---|
688 | paranoid_free(valueB);
|
---|
689 | }
|
---|
690 | #endif
|
---|
691 |
|
---|
692 |
|
---|
693 | /**
|
---|
694 | * Save a disklist to a stream in raidtab format.
|
---|
695 | * @param listname One of "raid-disk", "spare-disk", "parity-disk", or "failed-disk".
|
---|
696 | * @param disklist The disklist to save to @p fout.
|
---|
697 | * @param fout The stream to write to.
|
---|
698 | */
|
---|
699 | void
|
---|
700 | save_disklist_to_file(char *listname,
|
---|
701 | struct list_of_disks *disklist, FILE * fout)
|
---|
702 | {
|
---|
703 | int i;
|
---|
704 |
|
---|
705 | assert_string_is_neither_NULL_nor_zerolength(listname);
|
---|
706 | assert(disklist != NULL);
|
---|
707 | assert(fout != NULL);
|
---|
708 |
|
---|
709 | for (i = 0; i < disklist->entries; i++) {
|
---|
710 | fprintf(fout, " device %s\n",
|
---|
711 | disklist->el[i].device);
|
---|
712 | fprintf(fout, " %-21s %d\n", listname, disklist->el[i].index);
|
---|
713 | }
|
---|
714 | }
|
---|
715 |
|
---|
716 |
|
---|
717 | #ifdef __FreeBSD__
|
---|
718 | /**
|
---|
719 | * Add a new plex to a volume. The index of the plex will be <tt>v-\>plexes - 1</tt>.
|
---|
720 | * @param v The volume to operate on.
|
---|
721 | * @param raidlevel The RAID level of the new plex.
|
---|
722 | * @param stripesize The stripe size (chunk size) of the new plex.
|
---|
723 | */
|
---|
724 | void add_plex_to_volume(struct vinum_volume *v, int raidlevel,
|
---|
725 | int stripesize)
|
---|
726 | {
|
---|
727 | v->plex[v->plexes].raidlevel = raidlevel;
|
---|
728 | v->plex[v->plexes].stripesize = stripesize;
|
---|
729 | v->plex[v->plexes].subdisks = 0;
|
---|
730 | ++v->plexes;
|
---|
731 | }
|
---|
732 |
|
---|
733 | /**
|
---|
734 | * For internal use only.
|
---|
735 | */
|
---|
736 | char **get_next_vinum_conf_line(FILE * f, int *argc)
|
---|
737 | {
|
---|
738 | int cnt = 0;
|
---|
739 | static char *argv[64];
|
---|
740 | char **ap;
|
---|
741 | char *line = (char *) malloc(MAX_STR_LEN);
|
---|
742 | if (!line)
|
---|
743 | errx(1,
|
---|
744 | "unable to allocate %i bytes of memory for `char *line' at %s:%i",
|
---|
745 | MAX_STR_LEN, __FILE__, __LINE__);
|
---|
746 | (void) fgets(line, MAX_STR_LEN, f);
|
---|
747 | if (feof(f)) {
|
---|
748 | log_it("[GNVCL] Uh... I reached the EOF.");
|
---|
749 | return 0;
|
---|
750 | }
|
---|
751 |
|
---|
752 | for (ap = argv; (*ap = strsep(&line, " \t")) != NULL;)
|
---|
753 | if (**ap != '\0') {
|
---|
754 | if (++ap >= &argv[64])
|
---|
755 | break;
|
---|
756 | cnt++;
|
---|
757 | }
|
---|
758 |
|
---|
759 | if (strchr(argv[cnt - 1], '\n')) {
|
---|
760 | *(strchr(argv[cnt - 1], '\n')) = '\0';
|
---|
761 | }
|
---|
762 |
|
---|
763 | if (argc)
|
---|
764 | *argc = cnt;
|
---|
765 | return argv;
|
---|
766 | }
|
---|
767 |
|
---|
768 | /**
|
---|
769 | * For internal use only.
|
---|
770 | */
|
---|
771 | char *get_option_val(int argc, char **argv, char *option)
|
---|
772 | {
|
---|
773 | int i;
|
---|
774 | for (i = 0; i < (argc - 1); ++i) {
|
---|
775 | if (!strcmp(argv[i], option)) {
|
---|
776 | return argv[i + 1];
|
---|
777 | }
|
---|
778 | }
|
---|
779 | return 0;
|
---|
780 | }
|
---|
781 |
|
---|
782 | /**
|
---|
783 | * For internal use only.
|
---|
784 | */
|
---|
785 | char **get_option_vals(int argc, char **argv, char *option, int nval)
|
---|
786 | {
|
---|
787 | int i, j;
|
---|
788 | static char **ret;
|
---|
789 | ret = (char **) malloc(nval * sizeof(char *));
|
---|
790 | for (i = 0; i < (argc - nval); ++i) {
|
---|
791 | if (!strcmp(argv[i], option)) {
|
---|
792 | for (j = 0; j < nval; ++j) {
|
---|
793 | ret[j] = (char *) malloc(strlen(argv[i + j + 1]) + 1);
|
---|
794 | strcpy(ret[j], argv[i + j + 1]);
|
---|
795 | }
|
---|
796 | return ret;
|
---|
797 | }
|
---|
798 | }
|
---|
799 | return 0;
|
---|
800 | }
|
---|
801 |
|
---|
802 | /**
|
---|
803 | * For internal use only.
|
---|
804 | */
|
---|
805 | bool get_option_state(int argc, char **argv, char *option)
|
---|
806 | {
|
---|
807 | int i;
|
---|
808 | for (i = 0; i < argc; ++i)
|
---|
809 | if (!strcmp(argv[i], option))
|
---|
810 | return TRUE;
|
---|
811 |
|
---|
812 | return FALSE;
|
---|
813 | }
|
---|
814 |
|
---|
815 | /**
|
---|
816 | * Taken from Vinum source -- for internal use only.
|
---|
817 | */
|
---|
818 | long long size_spec(char *spec)
|
---|
819 | {
|
---|
820 | u_int64_t size;
|
---|
821 | char *s;
|
---|
822 | int sign = 1; /* -1 if negative */
|
---|
823 |
|
---|
824 | size = 0;
|
---|
825 | if (spec != NULL) { /* we have a parameter */
|
---|
826 | s = spec;
|
---|
827 | if (*s == '-') { /* negative, */
|
---|
828 | sign = -1;
|
---|
829 | s++; /* skip */
|
---|
830 | }
|
---|
831 | if ((*s >= '0') && (*s <= '9')) { /* it's numeric */
|
---|
832 | while ((*s >= '0') && (*s <= '9')) /* it's numeric */
|
---|
833 | size = size * 10 + *s++ - '0'; /* convert it */
|
---|
834 | switch (*s) {
|
---|
835 | case '\0':
|
---|
836 | return size * sign;
|
---|
837 |
|
---|
838 | case 'B':
|
---|
839 | case 'b':
|
---|
840 | case 'S':
|
---|
841 | case 's':
|
---|
842 | return size * sign * 512;
|
---|
843 |
|
---|
844 | case 'K':
|
---|
845 | case 'k':
|
---|
846 | return size * sign * 1024;
|
---|
847 |
|
---|
848 | case 'M':
|
---|
849 | case 'm':
|
---|
850 | return size * sign * 1024 * 1024;
|
---|
851 |
|
---|
852 | case 'G':
|
---|
853 | case 'g':
|
---|
854 | return size * sign * 1024 * 1024 * 1024;
|
---|
855 |
|
---|
856 | case 'T':
|
---|
857 | case 't':
|
---|
858 | log_it
|
---|
859 | ("Ok, I'm scared... Someone did a TERABYTE+ size-spec");
|
---|
860 | return size * sign * 1024 * 1024 * 1024 * 1024;
|
---|
861 |
|
---|
862 | case 'P':
|
---|
863 | case 'p':
|
---|
864 | log_it
|
---|
865 | ("If I was scared last time, I'm freaked out now. Someone actually has a PETABYTE?!?!?!?!");
|
---|
866 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024;
|
---|
867 |
|
---|
868 | case 'E':
|
---|
869 | case 'e':
|
---|
870 | log_it
|
---|
871 | ("Okay, I'm REALLY freaked out. Who could devote a whole EXABYTE to their data?!?!");
|
---|
872 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
873 | 1024;
|
---|
874 |
|
---|
875 | case 'Z':
|
---|
876 | case 'z':
|
---|
877 | log_it
|
---|
878 | ("WHAT!?!? A ZETABYTE!?!? You've GOT to be kidding me!!!");
|
---|
879 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
880 | 1024 * 1024;
|
---|
881 |
|
---|
882 | case 'Y':
|
---|
883 | case 'y':
|
---|
884 | log_it
|
---|
885 | ("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?!?!");
|
---|
886 | popup_and_OK
|
---|
887 | ("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 :-)");
|
---|
888 | return size * sign * 1024 * 1024 * 1024 * 1024 * 1024 *
|
---|
889 | 1024 * 1024 * 1024;
|
---|
890 | }
|
---|
891 | }
|
---|
892 | }
|
---|
893 | return size * sign;
|
---|
894 | }
|
---|
895 |
|
---|
896 | #endif
|
---|
897 |
|
---|
898 |
|
---|
899 |
|
---|
900 |
|
---|
901 | int read_mdstat(struct s_mdstat *mdstat, char *mdstat_file)
|
---|
902 | {
|
---|
903 | FILE *fin;
|
---|
904 | char *tmp;
|
---|
905 | char *stub;
|
---|
906 | char *incoming = NULL;
|
---|
907 | char *p, *q, *r;
|
---|
908 | int diskno;
|
---|
909 | size_t n = 0;
|
---|
910 |
|
---|
911 | malloc_string(incoming);
|
---|
912 | if (!(fin = fopen(mdstat_file, "r"))) {
|
---|
913 | log_msg(1, "%s not found", mdstat_file);
|
---|
914 | return (1);
|
---|
915 | }
|
---|
916 | mdstat->entries = 0;
|
---|
917 | for (getline(&incoming, &n, fin); !feof(fin);
|
---|
918 | getline(&incoming, &n, fin)) {
|
---|
919 | p = incoming;
|
---|
920 | if (*p != 'm' && *(p + 1) == 'm') {
|
---|
921 | p++;
|
---|
922 | }
|
---|
923 | if (strncmp(p, "md", 2)) {
|
---|
924 | continue;
|
---|
925 | }
|
---|
926 | // read first line --- mdN : active raidX ............
|
---|
927 | mdstat->el[mdstat->entries].md = atoi(p + 2);
|
---|
928 | log_msg(8, "Storing /dev/md%d's info", atoi(p + 2));
|
---|
929 | while (*p != ':' && *p) {
|
---|
930 | p++;
|
---|
931 | }
|
---|
932 | while ((*p != 'r' || *(p + 1) != 'a') && *p) {
|
---|
933 | p++;
|
---|
934 | }
|
---|
935 | if (!strncmp(p, "raid", 4)) {
|
---|
936 | mdstat->el[mdstat->entries].raidlevel = *(p + 4) - '0';
|
---|
937 | }
|
---|
938 | p += 4;
|
---|
939 | while (*p != ' ' && *p) {
|
---|
940 | p++;
|
---|
941 | }
|
---|
942 | while (*p == ' ' && *p) {
|
---|
943 | p++;
|
---|
944 | }
|
---|
945 | for (diskno = 0; *p; diskno++) {
|
---|
946 | asprintf(&stub, "%s", p);
|
---|
947 | q = strchr(stub, '[');
|
---|
948 | if (q) {
|
---|
949 | *q = '\0';
|
---|
950 | q++;
|
---|
951 | r = strchr(q, ']');
|
---|
952 | if (r) {
|
---|
953 | *r = '\0';
|
---|
954 | }
|
---|
955 | mdstat->el[mdstat->entries].disks.el[diskno].index =
|
---|
956 | atoi(q);
|
---|
957 | } else {
|
---|
958 | mdstat->el[mdstat->entries].disks.el[diskno].index = -1;
|
---|
959 | q = strchr(stub, ' ');
|
---|
960 | if (q) {
|
---|
961 | *q = '\0';
|
---|
962 | }
|
---|
963 | }
|
---|
964 | asprintf(&tmp, "/dev/%s", stub);
|
---|
965 | paranoid_free(stub);
|
---|
966 |
|
---|
967 | log_msg(8, "/dev/md%d : disk#%d : %s (%d)",
|
---|
968 | mdstat->el[mdstat->entries].md, diskno, tmp,
|
---|
969 | mdstat->el[mdstat->entries].disks.el[diskno].index);
|
---|
970 | strcpy(mdstat->el[mdstat->entries].disks.el[diskno].device,
|
---|
971 | tmp);
|
---|
972 | paranoid_free(tmp);
|
---|
973 |
|
---|
974 | while (*p != ' ' && *p) {
|
---|
975 | p++;
|
---|
976 | }
|
---|
977 | while (*p == ' ' && *p) {
|
---|
978 | p++;
|
---|
979 | }
|
---|
980 | }
|
---|
981 | mdstat->el[mdstat->entries].disks.entries = diskno;
|
---|
982 | // next line --- skip it
|
---|
983 | if (!feof(fin)) {
|
---|
984 | getline(&incoming, &n, fin);
|
---|
985 | } else {
|
---|
986 | continue;
|
---|
987 | }
|
---|
988 | // next line --- the 'progress' line
|
---|
989 | if (!feof(fin)) {
|
---|
990 | getline(&incoming, &n, fin);
|
---|
991 | } else {
|
---|
992 | continue;
|
---|
993 | }
|
---|
994 | // log_msg(1, "Percentage line = '%s'", incoming);
|
---|
995 | if (!(p = strchr(incoming, '\%'))) {
|
---|
996 | mdstat->el[mdstat->entries].progress = 999; // not found
|
---|
997 | } else if (strstr(incoming, "DELAYED")) {
|
---|
998 | mdstat->el[mdstat->entries].progress = -1; // delayed (therefore, stuck at 0%)
|
---|
999 | } else {
|
---|
1000 | for (*p = '\0'; *p != ' '; p--);
|
---|
1001 | mdstat->el[mdstat->entries].progress = atoi(p);
|
---|
1002 | }
|
---|
1003 | log_msg(8, "progress =%d", mdstat->el[mdstat->entries].progress);
|
---|
1004 | mdstat->entries++;
|
---|
1005 | }
|
---|
1006 | fclose(fin);
|
---|
1007 | paranoid_free(incoming);
|
---|
1008 | return (0);
|
---|
1009 | }
|
---|
1010 |
|
---|
1011 |
|
---|
1012 |
|
---|
1013 | int create_raidtab_from_mdstat(char *raidtab_fname, char *mdstat_fname)
|
---|
1014 | {
|
---|
1015 | struct raidlist_itself *raidlist;
|
---|
1016 | struct s_mdstat *mdstat;
|
---|
1017 | int retval = 0;
|
---|
1018 | int i;
|
---|
1019 |
|
---|
1020 | raidlist = malloc(sizeof(struct raidlist_itself));
|
---|
1021 | mdstat = malloc(sizeof(struct s_mdstat));
|
---|
1022 |
|
---|
1023 | if (read_mdstat(mdstat, mdstat_fname)) {
|
---|
1024 | log_to_screen("Sorry, cannot read %s", mdstat_fname);
|
---|
1025 | return (1);
|
---|
1026 | }
|
---|
1027 |
|
---|
1028 | for (i = 0; i < mdstat->entries; i++) {
|
---|
1029 | sprintf(raidlist->el[i].raid_device, "/dev/md%d",
|
---|
1030 | mdstat->el[i].md);
|
---|
1031 | raidlist->el[i].raid_level = mdstat->el[i].raidlevel;
|
---|
1032 | raidlist->el[i].persistent_superblock = 1;
|
---|
1033 | raidlist->el[i].chunk_size = 4;
|
---|
1034 | memcpy((void *) &raidlist->el[i].data_disks,
|
---|
1035 | (void *) &mdstat->el[i].disks,
|
---|
1036 | sizeof(struct list_of_disks));
|
---|
1037 | // FIXME --- the above line does not allow for spare disks
|
---|
1038 | log_to_screen
|
---|
1039 | ("FIXME - create_raidtab_from_mdstat does not allow for spare disks");
|
---|
1040 | }
|
---|
1041 | raidlist->entries = i;
|
---|
1042 | retval += save_raidlist_to_raidtab(raidlist, raidtab_fname);
|
---|
1043 | return (retval);
|
---|
1044 | }
|
---|
1045 |
|
---|
1046 |
|
---|
1047 | /* @} - end of raidGroup */
|
---|