projects / thirdparty / mdadm.git / blame
| Commit | Line | Data |
|---|---|---|
| 64c4757e NB |
1 | /* |
| 2 | * mdctl - manage Linux "md" devices aka RAID arrays. | |
| 3 | * | |
| 4 | * Copyright (C) 2001 Neil Brown <neilb@cse.unsw.edu.au> | |
| 5 | * | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License as published by | |
| 9 | * the Free Software Foundation; either version 2 of the License, or | |
| 10 | * (at your option) any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 20 | * | |
| 21 | * Author: Neil Brown | |
| 22 | * Email: <neilb@cse.unsw.edu.au> | |
| 23 | * Paper: Neil Brown | |
| 24 | * School of Computer Science and Engineering | |
| 25 | * The University of New South Wales | |
| 26 | * Sydney, 2052 | |
| 27 | * Australia | |
| 28 | */ | |
| 29 | ||
| 30 | #define __USE_LARGEFILE64 | |
| 31 | #include <unistd.h> | |
| 32 | extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); | |
| 33 | ||
| 34 | #include <sys/types.h> | |
| 35 | #include <sys/stat.h> | |
| 36 | #include <stdlib.h> | |
| 37 | #include <time.h> | |
| 38 | #include <getopt.h> | |
| 39 | #include <fcntl.h> | |
| 40 | #include <stdio.h> | |
| 41 | #include <errno.h> | |
| 42 | #include <string.h> | |
| 43 | ||
| 44 | #include <linux/kdev_t.h> | |
| 45 | #include <linux/fs.h> | |
| 46 | #include <sys/ioctl.h> | |
| 47 | #define MD_MAJOR 9 | |
| 48 | ||
| 49 | ||
| 50 | #include "md_u.h" | |
| 51 | ||
| 52 | extern char short_options[]; | |
| 53 | extern struct option long_options[]; | |
| 54 | extern char Version[], Usage[], Help[], Help_create[], Help_build[], Help_assemble[]; | |
| 55 | ||
| 56 | /* structures read from config file */ | |
| 57 | /* List of mddevice names and uuids */ | |
| 58 | typedef struct mddev_uuid_s { | |
| 59 | char *devname; | |
| 60 | __u32 uuid[4]; | |
| 61 | struct mddev_uuid_s *next; | |
| 62 | } *mddev_uuid_t; | |
| 63 | ||
| 64 | /* List of device names - wildcards expanded */ | |
| 65 | typedef struct mddev_dev_s { | |
| 66 | char *devname; | |
| 67 | struct mddev_dev_s *next; | |
| 68 | } *mddev_dev_t; | |
| 69 | ||
| 70 | /* | |
| 71 | * RAID5 supported algorithms | |
| 72 | */ | |
| 73 | #define ALGORITHM_LEFT_ASYMMETRIC 0 | |
| 74 | #define ALGORITHM_RIGHT_ASYMMETRIC 1 | |
| 75 | #define ALGORITHM_LEFT_SYMMETRIC 2 | |
| 76 | #define ALGORITHM_RIGHT_SYMMETRIC 3 | |
| 77 | ||
| 78 | ||
| 79 | extern int Manage_ro(char *devname, int fd, int readonly); | |
| 80 | extern int Manage_runstop(char *devname, int fd, int runstop); | |
| 81 | extern int Manage_subdevs(char *devname, int fd, | |
| 82 | int devcnt, char *devnames[], int devmodes[]); | |
| 83 | ||
| 84 | ||
| 85 | extern int Assemble(char *mddev, int mdfd, | |
| 86 | int uuid[4], int uuidset, | |
| 87 | char *conffile, int scan, | |
| 88 | int subdevs, char *subdev[], | |
| 89 | int readonly, int runstop, | |
| 90 | int verbose, int force); | |
| 91 | ||
| 92 | extern int Build(char *mddev, int mdfd, int chunk, int level, | |
| 93 | int raiddisks, | |
| 94 | int subdevs, char *subdev[]); | |
| 95 | ||
| 96 | ||
| 97 | extern int Create(char *mddev, int mdfd, | |
| 98 | int chunk, int level, int layout, int raiddisks, int sparedisks, | |
| 99 | int subdevs, char *subdev[], | |
| 100 | int runstop); | |
| 101 | ||
| 102 | extern int Detail(char *dev); | |
| 103 | extern int Examine(char *dev); | |
| 104 | ||
| 105 | extern int md_get_version(int fd); | |
| 106 | extern int get_linux_version(); | |
| 107 | extern int parse_uuid(char *str, int uuid[4]); | |
| 108 | ||
| 109 | extern mddev_uuid_t conf_get_uuids(char *); | |
| 110 | extern mddev_dev_t conf_get_devs(char *); |