X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=blobdiff_plain;f=mdadm.h;h=82f6cd9f226ca349865e7233d1e2714df5319836;hp=8c5f2f29eabfe16a4ec55c0a205a227298e17679;hb=d03373f1deea242eaacfab6b2b0c4afc6d7702d2;hpb=47d79ef8e5bb59f2c3207d04806d3a823a733820 diff --git a/mdadm.h b/mdadm.h index 8c5f2f29..82f6cd9f 100644 --- a/mdadm.h +++ b/mdadm.h @@ -1,7 +1,7 @@ /* * mdadm - manage Linux "md" devices aka RAID arrays. * - * Copyright (C) 2001-2002 Neil Brown + * Copyright (C) 2001-2006 Neil Brown * * * This program is free software; you can redistribute it and/or modify @@ -27,10 +27,15 @@ * Australia */ -#define __USE_LARGEFILE64 +#define _GNU_SOURCE +#define _FILE_OFFSET_BITS 64 #include -#ifndef __dietlibc__ +#if !defined(__dietlibc__) && !defined(__KLIBC__) extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); +#else +# if defined(__NO_STAT64) || __WORDSIZE != 32 +# define lseek64 lseek +# endif #endif #include @@ -43,10 +48,12 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #include #include #include -#ifdef __dietlibc__NONO -int strncmp(const char *s1, const char *s2, size_t n) __THROW __pure__; -char *strncpy(char *dest, const char *src, size_t n) __THROW; -#include +#include +#ifdef __dietlibc__ +#include +/* dietlibc has deprecated random and srandom!! */ +#define random rand +#define srandom srand #endif @@ -70,12 +77,92 @@ char *strncpy(char *dest, const char *src, size_t n) __THROW; #include "md_p.h" #include "bitmap.h" +#include +/* Redhat don't like to #include , and + * some time include isn't enough, + * and there is no standard conversion function so... */ +/* And dietlibc doesn't think byteswap is ok, so.. */ +/* #include */ +#define bswap_16(x) (((x) & 0x00ffU) << 8 | \ + ((x) & 0xff00U) >> 8) +#define bswap_32(x) (((x) & 0x000000ffU) << 24 | \ + ((x) & 0xff000000U) >> 24 | \ + ((x) & 0x0000ff00U) << 8 | \ + ((x) & 0x00ff0000U) >> 8) +#define bswap_64(x) (((x) & 0x00000000000000ffULL) << 56 | \ + ((x) & 0xff00000000000000ULL) >> 56 | \ + ((x) & 0x000000000000ff00ULL) << 40 | \ + ((x) & 0x00ff000000000000ULL) >> 40 | \ + ((x) & 0x0000000000ff0000ULL) << 24 | \ + ((x) & 0x0000ff0000000000ULL) >> 24 | \ + ((x) & 0x00000000ff000000ULL) << 8 | \ + ((x) & 0x000000ff00000000ULL) >> 8) + +#if !defined(__KLIBC__) +#if BYTE_ORDER == LITTLE_ENDIAN +#define __cpu_to_le16(_x) (_x) +#define __cpu_to_le32(_x) (_x) +#define __cpu_to_le64(_x) (_x) +#define __le16_to_cpu(_x) (_x) +#define __le32_to_cpu(_x) (_x) +#define __le64_to_cpu(_x) (_x) + +#define __cpu_to_be16(_x) bswap_16(_x) +#define __cpu_to_be32(_x) bswap_32(_x) +#define __cpu_to_be64(_x) bswap_64(_x) +#define __be16_to_cpu(_x) bswap_16(_x) +#define __be32_to_cpu(_x) bswap_32(_x) +#define __be64_to_cpu(_x) bswap_64(_x) +#elif BYTE_ORDER == BIG_ENDIAN +#define __cpu_to_le16(_x) bswap_16(_x) +#define __cpu_to_le32(_x) bswap_32(_x) +#define __cpu_to_le64(_x) bswap_64(_x) +#define __le16_to_cpu(_x) bswap_16(_x) +#define __le32_to_cpu(_x) bswap_32(_x) +#define __le64_to_cpu(_x) bswap_64(_x) + +#define __cpu_to_be16(_x) (_x) +#define __cpu_to_be32(_x) (_x) +#define __cpu_to_be64(_x) (_x) +#define __be16_to_cpu(_x) (_x) +#define __be32_to_cpu(_x) (_x) +#define __be64_to_cpu(_x) (_x) +#else +# error "unknown endianness." +#endif +#endif /* __KLIBC__ */ + + + /* general information that might be extracted from a superblock */ struct mdinfo { mdu_array_info_t array; mdu_disk_info_t disk; __u64 events; int uuid[4]; + char name[33]; + unsigned long long data_offset; + unsigned long long component_size; + int reshape_active; + unsigned long long reshape_progress; + int new_level, delta_disks, new_layout, new_chunk; + int errors; + int cache_size; /* size of raid456 stripe cache*/ + int mismatch_cnt; + char text_version[50]; + + char sys_name[20]; + struct mdinfo *devs; + struct mdinfo *next; +}; + +struct createinfo { + int uid; + int gid; + int autof; + int mode; + int symlinks; + struct supertype *supertype; }; #define Name "mdadm" @@ -88,15 +175,36 @@ enum mode { MISC, MONITOR, GROW, + INCREMENTAL, + AUTODETECT, }; extern char short_options[]; +extern char short_bitmap_options[]; extern char short_bitmap_auto_options[]; extern struct option long_options[]; extern char Version[], Usage[], Help[], OptionHelp[], Help_create[], Help_build[], Help_assemble[], Help_grow[], + Help_incr[], Help_manage[], Help_misc[], Help_monitor[], Help_config[]; +/* for option that don't have short equivilents, we assign arbitrary + * small numbers. '1' means an undecorated option, so we start at '2'. + */ +enum special_options { + AssumeClean = 2, + BitmapChunk, + WriteBehind, + ReAdd, + NoDegraded, + Sparc22, + BackupFile, + HomeHost, + AutoHomeHost, + Symlinks, + AutoDetect, +}; + /* structures read from config file */ /* List of mddevice names and identifiers * Identifiers can be: @@ -110,7 +218,7 @@ extern char Version[], Usage[], Help[], OptionHelp[], #define UnSet (0xfffe) typedef struct mddev_ident_s { char *devname; - + int uuid_set; int uuid[4]; char name[33]; @@ -126,6 +234,7 @@ typedef struct mddev_ident_s { struct supertype *st; int autof; /* 1 for normal, 2 for partitioned */ char *spare_group; + char *bitmap_file; int bitmap_fd; struct mddev_ident_s *next; @@ -139,6 +248,7 @@ typedef struct mddev_dev_s { */ char writemostly; char re_add; + char used; /* set when used */ struct mddev_dev_s *next; } *mddev_dev_t; @@ -159,66 +269,169 @@ struct mdstat_ent { struct mdstat_ent *next; }; -extern struct mdstat_ent *mdstat_read(int); +extern struct mdstat_ent *mdstat_read(int hold, int start); extern void free_mdstat(struct mdstat_ent *ms); extern void mdstat_wait(int seconds); +extern int mddev_busy(int devnum); + +struct map_ent { + struct map_ent *next; + int devnum; + int major,minor; + int uuid[4]; + char *path; +}; +extern int map_update(struct map_ent **mpp, int devnum, int major, int minor, + int uuid[4], char *path); +extern struct map_ent *map_by_uuid(struct map_ent **map, int uuid[4]); +extern void map_read(struct map_ent **melp); +extern int map_write(struct map_ent *mel); +extern void map_delete(struct map_ent **mapp, int devnum); +extern void map_free(struct map_ent *map); +extern void map_add(struct map_ent **melp, + int devnum, int major, int minor, int uuid[4], char *path); + +/* various details can be requested */ +#define GET_LEVEL 1 +#define GET_LAYOUT 2 +#define GET_COMPONENT 4 +#define GET_CHUNK 8 +#define GET_CACHE 16 +#define GET_MISMATCH 32 +#define GET_VERSION 64 + +#define GET_DEVS 1024 /* gets role, major, minor */ +#define GET_OFFSET 2048 +#define GET_SIZE 4096 +#define GET_STATE 8192 +#define GET_ERROR 16384 + +/* If fd >= 0, get the array it is open on, + * else use devnum. >=0 -> major9. <0..... + */ +extern void sysfs_free(struct mdinfo *sra); +extern struct mdinfo *sysfs_read(int fd, int devnum, unsigned long options); +extern int sysfs_set_str(struct mdinfo *sra, struct mdinfo *dev, + char *name, char *val); +extern int sysfs_set_num(struct mdinfo *sra, struct mdinfo *dev, + char *name, unsigned long long val); +extern int sysfs_get_ll(struct mdinfo *sra, struct mdinfo *dev, + char *name, unsigned long long *val); + + +extern int save_stripes(int *source, unsigned long long *offsets, + int raid_disks, int chunk_size, int level, int layout, + int nwrites, int *dest, + unsigned long long start, unsigned long long length); +extern int restore_stripes(int *dest, unsigned long long *offsets, + int raid_disks, int chunk_size, int level, int layout, + int source, unsigned long long read_offset, + unsigned long long start, unsigned long long length); #ifndef Sendmail #define Sendmail "/usr/lib/sendmail -t" #endif +#define SYSLOG_FACILITY LOG_DAEMON + extern char *map_num(mapping_t *map, int num); extern int map_name(mapping_t *map, char *name); extern mapping_t r5layout[], pers[], modes[], faultylayout[]; -extern char *map_dev(int major, int minor); +extern char *map_dev(int major, int minor, int create); extern struct superswitch { - void (*examine_super)(void *sbv); - void (*brief_examine_super)(void *sbv); - void (*detail_super)(void *sbv); - void (*brief_detail_super)(void *sbv); - void (*uuid_from_super)(int uuid[4], void *sbv); - void (*getinfo_super)(struct mdinfo *info, mddev_ident_t ident, void *sbv); - int (*update_super)(struct mdinfo *info, void *sbv, char *update, char *devname, int verbose); - __u64 (*event_super)(void *sbv); - int (*init_super)(struct supertype *st, void **sbp, mdu_array_info_t *info, char *name); - void (*add_to_super)(void *sbv, mdu_disk_info_t *dinfo); - int (*store_super)(struct supertype *st, int fd, void *sbv); - int (*write_init_super)(struct supertype *st, void *sbv, mdu_disk_info_t *dinfo, char *devname); - int (*compare_super)(void **firstp, void *secondv); - int (*load_super)(struct supertype *st, int fd, void **sbp, char *devname); + void (*examine_super)(struct supertype *st, char *homehost); + void (*brief_examine_super)(struct supertype *st); + void (*export_examine_super)(struct supertype *st); + void (*detail_super)(struct supertype *st, char *homehost); + void (*brief_detail_super)(struct supertype *st); + void (*export_detail_super)(struct supertype *st); + void (*uuid_from_super)(struct supertype *st, int uuid[4]); + void (*getinfo_super)(struct supertype *st, struct mdinfo *info); + int (*match_home)(struct supertype *st, char *homehost); + int (*update_super)(struct supertype *st, struct mdinfo *info, + char *update, + char *devname, int verbose, + int uuid_set, char *homehost); + int (*init_super)(struct supertype *st, mdu_array_info_t *info, + unsigned long long size, char *name, + char *homehost, int *uuid); + void (*add_to_super)(struct supertype *st, mdu_disk_info_t *dinfo, + int fd, char *devname); + int (*store_super)(struct supertype *st, int fd); + int (*write_init_super)(struct supertype *st); + int (*compare_super)(struct supertype *st, struct supertype *tst); + int (*load_super)(struct supertype *st, int fd, char *devname); struct supertype * (*match_metadata_desc)(char *arg); __u64 (*avail_size)(struct supertype *st, __u64 size); - int (*add_internal_bitmap)(struct supertype *st, void *sbv, int chunk, int delay, int write_behind, + int (*add_internal_bitmap)(struct supertype *st, int *chunkp, + int delay, int write_behind, unsigned long long size, int may_change, int major); - void (*locate_bitmap)(struct supertype *st, int fd, void *sbv); - int (*write_bitmap)(struct supertype *st, int fd, void *sbv); + void (*locate_bitmap)(struct supertype *st, int fd); + int (*write_bitmap)(struct supertype *st, int fd); + void (*free_super)(struct supertype *st); + int (*validate_geometry)(struct supertype *st, int level, int layout, + int raiddisks, + int chunk, unsigned long long size, + char *subdev, unsigned long long *freesize); int major; + char *text_version; int swapuuid; /* true if uuid is bigending rather than hostendian */ + int external; } super0, super1, *superlist[]; struct supertype { struct superswitch *ss; int minor_version; int max_devs; + void *sb; + void *info; }; -extern struct supertype *super_by_version(int vers, int minor); +extern struct supertype *super_by_fd(int fd); extern struct supertype *guess_super(int fd); +extern struct supertype *dup_super(struct supertype *st); +extern int get_dev_size(int fd, char *dname, unsigned long long *sizep); +extern void get_one_disk(int mdfd, mdu_array_info_t *ainf, + mdu_disk_info_t *disk); + +#if __GNUC__ < 3 +struct stat64; +#endif + +#define HAVE_NFTW we assume +#define HAVE_FTW #ifdef UCLIBC - struct FTW {}; +# include +# ifndef __UCLIBC_HAS_FTW__ +# undef HAVE_FTW +# undef HAVE_NFTW +# endif +#endif + +#ifdef __dietlibc__ +# undef HAVE_NFTW +#endif + +#if defined(__KLIBC__) +# undef HAVE_NFTW +# undef HAVE_FTW +#endif + +#ifndef HAVE_NFTW # define FTW_PHYS 1 -#else -# define __USE_XOPEN_EXTENDED -# include -# ifdef __dietlibc__ -# define FTW_PHYS 1 +# ifndef HAVE_FTW + struct FTW {}; # endif #endif +#ifdef HAVE_FTW +# include +#endif + extern int add_dev(const char *name, const struct stat *stb, int flag, struct FTW *s); @@ -228,16 +441,21 @@ extern int Manage_resize(char *devname, int fd, long long size, int raid_disks); extern int Manage_reconfig(char *devname, int fd, int layout); extern int Manage_subdevs(char *devname, int fd, mddev_dev_t devlist, int verbose); +extern int autodetect(void); extern int Grow_Add_device(char *devname, int fd, char *newdev); -extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind); +extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind, int force); +extern int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, + long long size, + int level, int layout, int chunksize, int raid_disks); +extern int Grow_restart(struct supertype *st, struct mdinfo *info, + int *fdlist, int cnt, char *backup_file); extern int Assemble(struct supertype *st, char *mddev, int mdfd, mddev_ident_t ident, - char *conffile, - mddev_dev_t devlist, + mddev_dev_t devlist, char *backup_file, int readonly, int runstop, - char *update, + char *update, char *homehost, int verbose, int force); extern int Build(char *mddev, int mdfd, int chunk, int level, int layout, @@ -247,22 +465,28 @@ extern int Build(char *mddev, int mdfd, int chunk, int level, int layout, extern int Create(struct supertype *st, char *mddev, int mdfd, - int chunk, int level, int layout, unsigned long size, int raiddisks, int sparedisks, - char *name, + int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks, + char *name, char *homehost, int *uuid, int subdevs, mddev_dev_t devlist, int runstop, int verbose, int force, int assume_clean, char *bitmap_file, int bitmap_chunk, int write_behind, int delay); -extern int Detail(char *dev, int brief, int test); +extern int Detail(char *dev, int brief, int export, int test, char *homehost); extern int Query(char *dev); -extern int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust, - struct supertype *forcest); +extern int Examine(mddev_dev_t devlist, int brief, int export, int scan, + int SparcAdjust, struct supertype *forcest, char *homehost); extern int Monitor(mddev_dev_t devlist, char *mailaddr, char *alert_cmd, int period, int daemonise, int scan, int oneshot, - char *config, int test, char *pidfile); + int dosyslog, int test, char *pidfile); -extern int Kill(char *dev, int force); +extern int Kill(char *dev, int force, int quiet, int noexcl); +extern int Wait(char *dev); + +extern int Incremental(char *devname, int verbose, int runstop, + struct supertype *st, char *homehost, int autof); +extern void RebuildMap(void); +extern int IncrementalScan(int verbose); extern int CreateBitmap(char *filename, int force, char uuid[16], unsigned long chunksize, unsigned long daemon_sleep, @@ -270,6 +494,7 @@ extern int CreateBitmap(char *filename, int force, char uuid[16], unsigned long long array_size, int major); extern int ExamineBitmap(char *filename, int brief, struct supertype *st); +extern int bitmap_update_uuid(int fd, int *uuid, int swap); extern int md_get_version(int fd); extern int get_linux_version(void); @@ -282,39 +507,54 @@ extern int get_mdp_major(void); extern int dev_open(char *dev, int flags); extern int is_standard(char *dev, int *nump); - -extern mddev_ident_t conf_get_ident(char *conffile, char *dev); -extern mddev_dev_t conf_get_devs(char *conffile); -extern char *conf_get_mailaddr(char *conffile); -extern char *conf_get_program(char *conffile); +extern int parse_auto(char *str, char *msg, int config); +extern mddev_ident_t conf_get_ident(char *dev); +extern mddev_dev_t conf_get_devs(void); +extern int conf_test_dev(char *devname); +extern struct createinfo *conf_get_create_info(void); +extern void set_conffile(char *file); +extern char *conf_get_mailaddr(void); +extern char *conf_get_mailfrom(void); +extern char *conf_get_program(void); +extern char *conf_get_homehost(void); extern char *conf_line(FILE *file); extern char *conf_word(FILE *file, int allow_key); extern void free_line(char *line); extern int match_oneof(char *devices, char *devname); extern void uuid_from_super(int uuid[4], mdp_super_t *super); extern int same_uuid(int a[4], int b[4], int swapuuid); -/* extern int compare_super(mdp_super_t *first, mdp_super_t *second);*/ +extern void copy_uuid(void *a, int b[4], int swapuuid); extern unsigned long calc_csum(void *super, int bytes); -extern int enough(int level, int raid_disks, int layout, +extern int enough(int level, int raid_disks, int layout, int clean, char *avail, int avail_disks); extern int ask(char *mesg); +extern unsigned long long get_component_size(int fd); +extern void remove_partitions(int fd); extern char *human_size(long long bytes); char *human_size_brief(long long bytes); +#define NoMdDev (1<<23) +extern int find_free_devnum(int use_partitions); + extern void put_md_name(char *name); extern char *get_md_name(int dev); extern char DefaultConfFile[]; extern int open_mddev(char *dev, int autof); +extern int open_mddev_devnum(char *devname, int devnum, char *name, + char *chosen_name, int parts); #define LEVEL_MULTIPATH (-4) #define LEVEL_LINEAR (-1) #define LEVEL_FAULTY (-5) +/* kernel module doesn't know about these */ +#define LEVEL_CONTAINER (-100) + /* faulty stuff */ @@ -345,3 +585,8 @@ extern int open_mddev(char *dev, int autof); #define makedev(M,m) (((M)<<8) | (m)) #endif +/* for raid5 */ +#define ALGORITHM_LEFT_ASYMMETRIC 0 +#define ALGORITHM_RIGHT_ASYMMETRIC 1 +#define ALGORITHM_LEFT_SYMMETRIC 2 +#define ALGORITHM_RIGHT_SYMMETRIC 3