[45] | 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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[1] | 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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[43] | 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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[1] | 23 | #endif
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| 24 |
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| 25 | /*@unused@*/
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[43] | 26 | //static char cvsid[] = "$Id: libmondo-raid.c 87 2005-10-27 20:03:00Z bcornec $";
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[1] | 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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[43] | 39 | bool is_this_raid_personality_registered(int raidno)
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[1] | 40 | {
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| 41 | #ifdef __FreeBSD__
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[43] | 42 | return ((raidno == -1) || (raidno == 0) || (raidno == 1)
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| 43 | || (raidno == 5)) ? TRUE : FALSE;
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[1] | 44 | #else
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[43] | 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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[45] | 50 | asprintf(&command,
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| 51 | "cat /proc/mdstat | grep \"linear\" > /dev/null 2> /dev/null");
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[43] | 52 | } else {
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[45] | 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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[43] | 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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[1] | 65 | #endif
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| 66 | }
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| 67 |
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[45] | 68 |
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[1] | 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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[43] | 76 | where_in_drivelist_is_drive(struct list_of_disks *disklist, char *device)
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[1] | 77 | {
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| 78 |
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[43] | 79 | /*@ int ************************************************************* */
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| 80 | int i = 0;
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[1] | 81 |
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[43] | 82 | assert(disklist != NULL);
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| 83 | assert_string_is_neither_NULL_nor_zerolength(device);
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[1] | 84 |
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[43] | 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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[1] | 89 | }
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[43] | 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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[1] | 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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[43] | 104 | which_raid_device_is_using_this_partition(struct raidlist_itself *raidlist,
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| 105 | char *device)
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[1] | 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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[43] | 109 | /*@ int ********************************************************* */
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| 110 | int i = 0;
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[1] | 111 |
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[43] | 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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[1] | 126 | }
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[43] | 127 |
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| 128 | if (thisone) {
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| 129 | break;
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| 130 | }
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[1] | 131 | }
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[43] | 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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[1] | 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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[43] | 143 | int current_raiddev = 0;
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[1] | 144 |
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[43] | 145 | assert_string_is_neither_NULL_nor_zerolength(device);
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| 146 | assert(raidlist != NULL);
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[1] | 147 |
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[43] | 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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[1] | 160 | }
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[43] | 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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[1] | 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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[43] | 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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[1] | 178 | {
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[43] | 179 | /*@ buffers ***************************************************** */
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| 180 | char *sz_value;
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[1] | 181 |
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[43] | 182 | assert(raidrec != NULL);
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| 183 | assert(label != NULL);
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[1] | 184 |
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[43] | 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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[1] | 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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[43] | 198 | void add_disk_to_raid_device(struct vinum_plex *p, char *device_to_add)
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[1] | 199 | {
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[43] | 200 | strcpy(p->sd[p->subdisks].which_device, device_to_add);
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| 201 | ++p->subdisks;
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[1] | 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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[43] | 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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[1] | 213 | {
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[43] | 214 | int items;
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[1] | 215 |
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[43] | 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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[1] | 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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[43] | 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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[1] | 234 | {
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[43] | 235 | int i;
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[1] | 236 |
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[43] | 237 | assert(vars != NULL);
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| 238 | assert(fout != NULL);
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[1] | 239 |
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[43] | 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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[1] | 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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[43] | 254 | int save_raidlist_to_raidtab(struct raidlist_itself *raidlist, char *fname)
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[1] | 255 | {
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[43] | 256 | FILE *fout;
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| 257 | int current_raid_device;
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[1] | 258 | #ifdef __FreeBSD__
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[43] | 259 | int i;
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[1] | 260 | #else
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| 261 | // Linux
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| 262 | #endif
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| 263 |
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[43] | 264 | assert(raidlist != NULL);
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| 265 | assert_string_is_neither_NULL_nor_zerolength(fname);
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[1] | 266 |
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[43] | 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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[1] | 277 |
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| 278 | #ifdef __FreeBSD__
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[43] | 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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[1] | 288 | #endif
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| 289 |
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[43] | 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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[1] | 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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[43] | 304 | void save_raidrec_to_file(struct
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[1] | 305 | #ifdef __FreeBSD__
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[43] | 306 | vinum_volume
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[1] | 307 | #else
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[43] | 308 | raid_device_record
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[1] | 309 | #endif
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[43] | 310 | * raidrec, FILE * fout)
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[1] | 311 | {
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| 312 | #ifdef __FreeBSD__
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[43] | 313 | int i, j;
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[1] | 314 |
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[43] | 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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[1] | 341 | }
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[43] | 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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[1] | 352 | }
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[43] | 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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[1] | 361 | }
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| 362 |
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[43] | 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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[1] | 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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[43] | 382 | int get_next_raidtab_line(FILE * fin, char *label, char *value)
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[1] | 383 | {
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[45] | 384 | char *incoming = NULL;
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[43] | 385 | char *p;
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[45] | 386 | size_t n = 0;
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[1] | 387 |
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[43] | 388 | assert(fin != NULL);
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| 389 | assert(label != NULL);
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| 390 | assert(value != NULL);
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[1] | 391 |
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[43] | 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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[1] | 395 | }
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[43] | 396 |
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[45] | 397 | for (getline(&incoming, &n, fin); !feof(fin);
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| 398 | getline(&incoming, &n, fin)) {
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[43] | 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);
|
---|
[1] | 415 | }
|
---|
| 416 |
|
---|
| 417 |
|
---|
| 418 | /**
|
---|
| 419 | * Load a raidtab file into a raidlist structure.
|
---|
| 420 | * @param raidlist The raidlist to fill.
|
---|
| 421 | * @param fname The file to read from.
|
---|
| 422 | * @return 0 for success, 1 for failure.
|
---|
| 423 | */
|
---|
| 424 | #ifdef __FreeBSD__
|
---|
[43] | 425 | int load_raidtab_into_raidlist(struct raidlist_itself *raidlist,
|
---|
| 426 | char *fname)
|
---|
[1] | 427 | {
|
---|
[43] | 428 | FILE *fin;
|
---|
| 429 | char *tmp1;
|
---|
| 430 | int items;
|
---|
[1] | 431 |
|
---|
[43] | 432 | raidlist->spares.entries = 0;
|
---|
| 433 | raidlist->disks.entries = 0;
|
---|
| 434 | if (length_of_file(fname) < 5) {
|
---|
| 435 | log_it("Raidtab is very small or non-existent. Ignoring it.");
|
---|
| 436 | raidlist->entries = 0;
|
---|
| 437 | return (0);
|
---|
[1] | 438 | }
|
---|
[43] | 439 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 440 | log_it("Cannot open raidtab");
|
---|
| 441 | return (1);
|
---|
[1] | 442 | }
|
---|
[43] | 443 | items = 0;
|
---|
| 444 | log_it("Loading raidtab...");
|
---|
| 445 | while (!feof(fin)) {
|
---|
| 446 | int argc;
|
---|
| 447 | char **argv = get_next_vinum_conf_line(fin, &argc);
|
---|
| 448 | if (!argv)
|
---|
| 449 | break;
|
---|
| 450 | if (!strcmp(argv[0], "drive")) {
|
---|
| 451 | char *drivename, *devname;
|
---|
| 452 | if (argc < 4)
|
---|
| 453 | continue;
|
---|
| 454 | drivename = argv[1];
|
---|
| 455 | devname = get_option_val(argc, argv, "device");
|
---|
| 456 | if (!devname)
|
---|
| 457 | continue;
|
---|
[1] | 458 |
|
---|
[43] | 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;
|
---|
[1] | 501 |
|
---|
[43] | 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 | }
|
---|
[1] | 540 | }
|
---|
[43] | 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);
|
---|
[1] | 547 | }
|
---|
| 548 |
|
---|
| 549 |
|
---|
| 550 | #else
|
---|
| 551 |
|
---|
[43] | 552 | int load_raidtab_into_raidlist(struct raidlist_itself *raidlist,
|
---|
| 553 | char *fname)
|
---|
[1] | 554 | {
|
---|
[43] | 555 | FILE *fin;
|
---|
| 556 | char *label;
|
---|
| 557 | char *value;
|
---|
| 558 | int items;
|
---|
| 559 | int v;
|
---|
[1] | 560 |
|
---|
[43] | 561 | assert(raidlist != NULL);
|
---|
| 562 | assert_string_is_neither_NULL_nor_zerolength(fname);
|
---|
[1] | 563 |
|
---|
[43] | 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);
|
---|
[1] | 568 | }
|
---|
[43] | 569 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 570 | log_it("Cannot open raidtab");
|
---|
| 571 | return (1);
|
---|
[1] | 572 | }
|
---|
[43] | 573 | items = 0;
|
---|
| 574 | log_it("Loading raidtab...");
|
---|
[45] | 575 | malloc_string(label);
|
---|
| 576 | malloc_string(value);
|
---|
[43] | 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++;
|
---|
[1] | 602 | }
|
---|
[43] | 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);
|
---|
[1] | 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
|
---|
[43] | 623 | process_raidtab_line(FILE * fin,
|
---|
| 624 | struct raid_device_record *raidrec,
|
---|
| 625 | char *label, char *value)
|
---|
[1] | 626 | {
|
---|
| 627 |
|
---|
[43] | 628 | /*@ add mallocs * */
|
---|
| 629 | char *tmp;
|
---|
| 630 | char *labelB;
|
---|
| 631 | char *valueB;
|
---|
[1] | 632 |
|
---|
[43] | 633 | struct list_of_disks *disklist;
|
---|
| 634 | int index;
|
---|
| 635 | int v;
|
---|
[1] | 636 |
|
---|
[43] | 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);
|
---|
[1] | 643 |
|
---|
[43] | 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,
|
---|
[45] | 673 | "Ignoring '%s %s' pair of disk %s", labelB, valueB,
|
---|
| 674 | label);
|
---|
[43] | 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;
|
---|
[1] | 686 | }
|
---|
[43] | 687 | paranoid_free(labelB);
|
---|
| 688 | paranoid_free(valueB);
|
---|
[1] | 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 | */
|
---|
[43] | 699 | void
|
---|
| 700 | save_disklist_to_file(char *listname,
|
---|
| 701 | struct list_of_disks *disklist, FILE * fout)
|
---|
[1] | 702 | {
|
---|
[43] | 703 | int i;
|
---|
[1] | 704 |
|
---|
[43] | 705 | assert_string_is_neither_NULL_nor_zerolength(listname);
|
---|
| 706 | assert(disklist != NULL);
|
---|
| 707 | assert(fout != NULL);
|
---|
[1] | 708 |
|
---|
[43] | 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 | }
|
---|
[1] | 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 | */
|
---|
[43] | 724 | void add_plex_to_volume(struct vinum_volume *v, int raidlevel,
|
---|
| 725 | int stripesize)
|
---|
[1] | 726 | {
|
---|
[43] | 727 | v->plex[v->plexes].raidlevel = raidlevel;
|
---|
| 728 | v->plex[v->plexes].stripesize = stripesize;
|
---|
| 729 | v->plex[v->plexes].subdisks = 0;
|
---|
| 730 | ++v->plexes;
|
---|
[1] | 731 | }
|
---|
| 732 |
|
---|
| 733 | /**
|
---|
| 734 | * For internal use only.
|
---|
| 735 | */
|
---|
[43] | 736 | char **get_next_vinum_conf_line(FILE * f, int *argc)
|
---|
[1] | 737 | {
|
---|
[43] | 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;
|
---|
[1] | 750 | }
|
---|
| 751 |
|
---|
[43] | 752 | for (ap = argv; (*ap = strsep(&line, " \t")) != NULL;)
|
---|
| 753 | if (**ap != '\0') {
|
---|
| 754 | if (++ap >= &argv[64])
|
---|
| 755 | break;
|
---|
| 756 | cnt++;
|
---|
| 757 | }
|
---|
[1] | 758 |
|
---|
[43] | 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;
|
---|
[1] | 766 | }
|
---|
| 767 |
|
---|
| 768 | /**
|
---|
| 769 | * For internal use only.
|
---|
| 770 | */
|
---|
[43] | 771 | char *get_option_val(int argc, char **argv, char *option)
|
---|
[1] | 772 | {
|
---|
[43] | 773 | int i;
|
---|
| 774 | for (i = 0; i < (argc - 1); ++i) {
|
---|
| 775 | if (!strcmp(argv[i], option)) {
|
---|
| 776 | return argv[i + 1];
|
---|
| 777 | }
|
---|
[1] | 778 | }
|
---|
[43] | 779 | return 0;
|
---|
[1] | 780 | }
|
---|
| 781 |
|
---|
| 782 | /**
|
---|
| 783 | * For internal use only.
|
---|
| 784 | */
|
---|
[43] | 785 | char **get_option_vals(int argc, char **argv, char *option, int nval)
|
---|
[1] | 786 | {
|
---|
[43] | 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 | }
|
---|
[1] | 798 | }
|
---|
[43] | 799 | return 0;
|
---|
[1] | 800 | }
|
---|
| 801 |
|
---|
| 802 | /**
|
---|
| 803 | * For internal use only.
|
---|
| 804 | */
|
---|
[43] | 805 | bool get_option_state(int argc, char **argv, char *option)
|
---|
[1] | 806 | {
|
---|
[43] | 807 | int i;
|
---|
| 808 | for (i = 0; i < argc; ++i)
|
---|
| 809 | if (!strcmp(argv[i], option))
|
---|
| 810 | return TRUE;
|
---|
[1] | 811 |
|
---|
[43] | 812 | return FALSE;
|
---|
[1] | 813 | }
|
---|
| 814 |
|
---|
| 815 | /**
|
---|
| 816 | * Taken from Vinum source -- for internal use only.
|
---|
| 817 | */
|
---|
| 818 | long long size_spec(char *spec)
|
---|
| 819 | {
|
---|
[43] | 820 | u_int64_t size;
|
---|
| 821 | char *s;
|
---|
| 822 | int sign = 1; /* -1 if negative */
|
---|
[1] | 823 |
|
---|
[43] | 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;
|
---|
[1] | 837 |
|
---|
[43] | 838 | case 'B':
|
---|
| 839 | case 'b':
|
---|
| 840 | case 'S':
|
---|
| 841 | case 's':
|
---|
| 842 | return size * sign * 512;
|
---|
[1] | 843 |
|
---|
[43] | 844 | case 'K':
|
---|
| 845 | case 'k':
|
---|
| 846 | return size * sign * 1024;
|
---|
[1] | 847 |
|
---|
[43] | 848 | case 'M':
|
---|
| 849 | case 'm':
|
---|
| 850 | return size * sign * 1024 * 1024;
|
---|
[1] | 851 |
|
---|
[43] | 852 | case 'G':
|
---|
| 853 | case 'g':
|
---|
| 854 | return size * sign * 1024 * 1024 * 1024;
|
---|
[1] | 855 |
|
---|
[43] | 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;
|
---|
[1] | 861 |
|
---|
[43] | 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;
|
---|
[1] | 867 |
|
---|
[43] | 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;
|
---|
[1] | 874 |
|
---|
[43] | 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 | }
|
---|
[1] | 892 | }
|
---|
[43] | 893 | return size * sign;
|
---|
[1] | 894 | }
|
---|
| 895 |
|
---|
| 896 | #endif
|
---|
| 897 |
|
---|
| 898 |
|
---|
| 899 |
|
---|
| 900 |
|
---|
[43] | 901 | int read_mdstat(struct s_mdstat *mdstat, char *mdstat_file)
|
---|
[1] | 902 | {
|
---|
[43] | 903 | FILE *fin;
|
---|
| 904 | char *tmp;
|
---|
| 905 | char *stub;
|
---|
[45] | 906 | char *incoming = NULL;
|
---|
[43] | 907 | char *p, *q, *r;
|
---|
| 908 | int diskno;
|
---|
[45] | 909 | size_t n = 0;
|
---|
[43] | 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;
|
---|
[45] | 917 | for (getline(&incoming, &n, fin); !feof(fin);
|
---|
| 918 | getline(&incoming, &n, fin)) {
|
---|
[43] | 919 | p = incoming;
|
---|
| 920 | if (*p != 'm' && *(p + 1) == 'm') {
|
---|
| 921 | p++;
|
---|
| 922 | }
|
---|
| 923 | if (strncmp(p, "md", 2)) {
|
---|
| 924 | continue;
|
---|
| 925 | }
|
---|
[1] | 926 | // read first line --- mdN : active raidX ............
|
---|
[43] | 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);
|
---|
[45] | 966 |
|
---|
[43] | 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);
|
---|
[45] | 970 | strcpy(mdstat->el[mdstat->entries].disks.el[diskno].device,
|
---|
| 971 | tmp);
|
---|
[43] | 972 | paranoid_free(tmp);
|
---|
[45] | 973 |
|
---|
[43] | 974 | while (*p != ' ' && *p) {
|
---|
| 975 | p++;
|
---|
| 976 | }
|
---|
| 977 | while (*p == ' ' && *p) {
|
---|
| 978 | p++;
|
---|
| 979 | }
|
---|
| 980 | }
|
---|
| 981 | mdstat->el[mdstat->entries].disks.entries = diskno;
|
---|
[1] | 982 | // next line --- skip it
|
---|
[43] | 983 | if (!feof(fin)) {
|
---|
[45] | 984 | getline(&incoming, &n, fin);
|
---|
[43] | 985 | } else {
|
---|
| 986 | continue;
|
---|
| 987 | }
|
---|
[1] | 988 | // next line --- the 'progress' line
|
---|
[43] | 989 | if (!feof(fin)) {
|
---|
[45] | 990 | getline(&incoming, &n, fin);
|
---|
[43] | 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);
|
---|
[1] | 1009 | }
|
---|
| 1010 |
|
---|
| 1011 |
|
---|
| 1012 |
|
---|
[43] | 1013 | int create_raidtab_from_mdstat(char *raidtab_fname, char *mdstat_fname)
|
---|
[1] | 1014 | {
|
---|
[43] | 1015 | struct raidlist_itself *raidlist;
|
---|
| 1016 | struct s_mdstat *mdstat;
|
---|
| 1017 | int retval = 0;
|
---|
| 1018 | int i;
|
---|
[1] | 1019 |
|
---|
[43] | 1020 | raidlist = malloc(sizeof(struct raidlist_itself));
|
---|
| 1021 | mdstat = malloc(sizeof(struct s_mdstat));
|
---|
[1] | 1022 |
|
---|
[43] | 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);
|
---|
[1] | 1044 | }
|
---|
| 1045 |
|
---|
| 1046 |
|
---|
| 1047 | /* @} - end of raidGroup */
|
---|