# endif
#endif
+#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <stdarg.h>
#include <stdint.h>
#include <stdlib.h>
#include <time.h>
#include <errno.h>
#include <string.h>
#include <syslog.h>
-#ifdef __GLIBC__
+#include <stdbool.h>
+#include <signal.h>
/* Newer glibc requires sys/sysmacros.h directly for makedev() */
#include <sys/sysmacros.h>
-#endif
#ifdef __dietlibc__
#include <strings.h>
/* dietlibc has deprecated random and srandom!! */
#define FAILED_SLOTS_DIR "/run/mdadm/failed-slots"
#endif /* FAILED_SLOTS */
+#ifndef MDMON_SERVICE
+#define MDMON_SERVICE "mdmon"
+#endif /* MDMON_SERVICE */
+
+#ifndef GROW_SERVICE
+#define GROW_SERVICE "mdadm-grow-continue"
+#endif /* GROW_SERVICE */
+
#include "md_u.h"
#include "md_p.h"
#include "bitmap.h"
#endif
#endif /* __KLIBC__ */
+/*
+ * Partially stolen from include/linux/unaligned/packed_struct.h
+ */
+struct __una_u16 { __u16 x; } __attribute__ ((packed));
+struct __una_u32 { __u32 x; } __attribute__ ((packed));
+
+static inline __u16 __get_unaligned16(const void *p)
+{
+ const struct __una_u16 *ptr = (const struct __una_u16 *)p;
+ return ptr->x;
+}
+
+static inline __u32 __get_unaligned32(const void *p)
+{
+ const struct __una_u32 *ptr = (const struct __una_u32 *)p;
+ return ptr->x;
+}
+
+static inline void __put_unaligned16(__u16 val, void *p)
+{
+ struct __una_u16 *ptr = (struct __una_u16 *)p;
+ ptr->x = val;
+}
+
+static inline void __put_unaligned32(__u32 val, void *p)
+{
+ struct __una_u32 *ptr = (struct __una_u32 *)p;
+ ptr->x = val;
+}
+
/*
* Check at compile time that something is of a particular type.
* Always evaluates to 1 so you may use it easily in comparisons.
ARRAY_ACTIVE,
ARRAY_WRITE_PENDING,
ARRAY_ACTIVE_IDLE,
+ ARRAY_BROKEN,
ARRAY_UNKNOWN_STATE,
} array_state;
struct md_bb bb;
int gid;
int autof;
int mode;
- int symlinks;
int names;
int bblist;
struct supertype *supertype;
};
extern char short_options[];
+extern char short_monitor_options[];
extern char short_bitmap_options[];
extern char short_bitmap_auto_options[];
extern struct option long_options[];
BackupFile,
HomeHost,
AutoHomeHost,
- Symlinks,
AutoDetect,
Waitclean,
DetailPlatform,
NoSharing,
HelpOptions,
Brief,
+ NoDevices,
ManageOpt,
Add,
AddSpare,
ConsistencyPolicy,
};
+enum update_opt {
+ UOPT_NAME = 1,
+ UOPT_PPL,
+ UOPT_NO_PPL,
+ UOPT_BITMAP,
+ UOPT_NO_BITMAP,
+ UOPT_SUBARRAY_ONLY,
+ UOPT_SPARC22,
+ UOPT_SUPER_MINOR,
+ UOPT_SUMMARIES,
+ UOPT_RESYNC,
+ UOPT_UUID,
+ UOPT_HOMEHOST,
+ UOPT_HOME_CLUSTER,
+ UOPT_NODES,
+ UOPT_DEVICESIZE,
+ UOPT_BBL,
+ UOPT_NO_BBL,
+ UOPT_FORCE_NO_BBL,
+ UOPT_METADATA,
+ UOPT_REVERT_RESHAPE,
+ UOPT_LAYOUT_ORIGINAL,
+ UOPT_LAYOUT_ALTERNATE,
+ UOPT_LAYOUT_UNSPECIFIED,
+ UOPT_BYTEORDER,
+ UOPT_HELP,
+ UOPT_UNDEFINED
+};
+extern void fprint_update_options(FILE *outf, enum update_opt update_mode);
+
enum prefix_standard {
JEDEC,
IEC
int runstop;
int verbose;
int brief;
+ int no_devices;
int force;
char *homehost;
int require_homehost;
int assume_clean;
int write_behind;
unsigned long long size;
+ unsigned long long data_offset;
int consistency_policy;
};
extern struct mdstat_ent *mdstat_read(int hold, int start);
extern void mdstat_close(void);
extern void free_mdstat(struct mdstat_ent *ms);
-extern void mdstat_wait(int seconds);
+extern int mdstat_wait(int seconds);
extern void mdstat_wait_fd(int fd, const sigset_t *sigmask);
extern int mddev_busy(char *devnm);
extern struct mdstat_ent *mdstat_by_component(char *name);
GET_ERROR = (1 << 24),
GET_ARRAY_STATE = (1 << 25),
GET_CONSISTENCY_POLICY = (1 << 26),
+ GET_DEVS_ALL = (1 << 27),
};
/* If fd >= 0, get the array it is open on,
#endif
#define SYSLOG_FACILITY LOG_DAEMON
-
+extern char *map_num_s(mapping_t *map, int num);
extern char *map_num(mapping_t *map, int num);
extern int map_name(mapping_t *map, char *name);
-extern mapping_t r5layout[], r6layout[], pers[], modes[], faultylayout[];
-extern mapping_t consistency_policies[], sysfs_array_states[];
+extern mapping_t r0layout[], r5layout[], r6layout[],
+ pers[], modes[], faultylayout[];
+extern mapping_t consistency_policies[], sysfs_array_states[], update_options[];
extern char *map_dev_preferred(int major, int minor, int create,
char *prefer);
return map_dev_preferred(major, minor, create, NULL);
}
+/**
+ * is_fd_valid() - check file descriptor.
+ * @fd: file descriptor.
+ *
+ * The function checks if @fd is nonnegative integer and shall be used only
+ * to verify open() result.
+ */
+static inline int is_fd_valid(int fd)
+{
+ return (fd > -1);
+}
+
+/**
+ * is_level456() - check whether given level is between inclusive 4 and 6.
+ * @level: level to check.
+ *
+ * Return: true if condition is met, false otherwise
+ */
+static inline bool is_level456(int level)
+{
+ return (level >= 4 && level <= 6);
+}
+
+/**
+ * close_fd() - verify, close and unset file descriptor.
+ * @fd: pointer to file descriptor.
+ *
+ * The function closes and invalidates file descriptor if appropriative. It
+ * ignores incorrect file descriptor quitely to simplify error handling.
+ */
+static inline void close_fd(int *fd)
+{
+ if (is_fd_valid(*fd) && close(*fd) == 0)
+ *fd = -1;
+}
+
struct active_array;
struct metadata_update;
/* Used to report details of an active array.
* ->load_super was possibly given a 'component' string.
*/
- void (*detail_super)(struct supertype *st, char *homehost);
- void (*brief_detail_super)(struct supertype *st);
+ void (*detail_super)(struct supertype *st, char *homehost,
+ char *subarray);
+ void (*brief_detail_super)(struct supertype *st, char *subarray);
void (*export_detail_super)(struct supertype *st);
/* Optional: platform hardware / firmware details */
* moved in, otherwise the superblock in 'st' is compared with
* 'tst'.
*/
- int (*compare_super)(struct supertype *st, struct supertype *tst);
+ int (*compare_super)(struct supertype *st, struct supertype *tst,
+ int verbose);
/* Load metadata from a single device. If 'devname' is not NULL
* print error messages as appropriate */
int (*load_super)(struct supertype *st, int fd, char *devname);
int (*add_internal_bitmap)(struct supertype *st, int *chunkp,
int delay, int write_behind,
unsigned long long size, int may_change, int major);
+ /* Perform additional setup required to activate a bitmap.
+ */
+ int (*set_bitmap)(struct supertype *st, struct mdinfo *info);
/* Seek 'fd' to start of write-intent-bitmap. Must be an
* md-native format bitmap
*/
/* query the supertype for default geometry */
void (*default_geometry)(struct supertype *st, int *level, int *layout, int *chunk); /* optional */
/* Permit subarray's to be deleted from inactive containers */
- int (*kill_subarray)(struct supertype *st); /* optional */
+ int (*kill_subarray)(struct supertype *st,
+ char *subarray_id); /* optional */
/* Permit subarray's to be modified */
int (*update_subarray)(struct supertype *st, char *subarray,
char *update, struct mddev_ident *ident); /* optional */
/* for mdmon */
int (*open_new)(struct supertype *c, struct active_array *a,
- char *inst);
+ int inst);
/* Tell the metadata handler the current state of the array.
* This covers whether it is known to be consistent (no pending writes)
extern void policy_add(char *type, ...);
extern void policy_free(void);
-extern struct dev_policy *path_policy(char *path, char *type);
+extern struct dev_policy *path_policy(char **paths, char *type);
extern struct dev_policy *disk_policy(struct mdinfo *disk);
extern struct dev_policy *devid_policy(int devid);
extern void dev_policy_free(struct dev_policy *p);
extern void policy_save_path(char *id_path, struct map_ent *array);
extern int policy_check_path(struct mdinfo *disk, struct map_ent *array);
+extern void sysfs_rules_apply(char *devnm, struct mdinfo *dev);
+extern void sysfsline(char *line);
+
#if __GNUC__ < 3
struct stat64;
#endif
struct context *c, struct shape *s);
extern int Grow_reshape(char *devname, int fd,
struct mddev_dev *devlist,
- unsigned long long data_offset,
struct context *c, struct shape *s);
extern int Grow_restart(struct supertype *st, struct mdinfo *info,
int *fdlist, int cnt, char *backup_file, int verbose);
char *name, int *uuid,
int subdevs, struct mddev_dev *devlist,
struct shape *s,
- struct context *c,
- unsigned long long data_offset);
+ struct context *c);
extern int Detail(char *dev, struct context *c);
extern int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path);
unsigned long long array_size,
int major);
extern int ExamineBitmap(char *filename, int brief, struct supertype *st);
+extern int IsBitmapDirty(char *filename);
extern int Write_rules(char *rule_name);
extern int bitmap_update_uuid(int fd, int *uuid, int swap);
extern int mdadm_version(char *version);
extern unsigned long long parse_size(char *size);
extern int parse_uuid(char *str, int uuid[4]);
+int default_layout(struct supertype *st, int level, int verbose);
extern int is_near_layout_10(int layout);
extern int parse_layout_10(char *layout);
extern int parse_layout_faulty(char *layout);
-extern long parse_num(char *num);
+extern int parse_num(int *dest, char *num);
extern int parse_cluster_confirm_arg(char *inp, char **devname, int *slot);
extern int check_ext2(int fd, char *name);
extern int check_reiser(int fd, char *name);
extern int fstat_is_blkdev(int fd, char *devname, dev_t *rdev);
extern int stat_is_blkdev(char *devname, dev_t *rdev);
+extern bool is_dev_alive(char *path);
extern int get_mdp_major(void);
extern int get_maj_min(char *dev, int *major, int *minor);
+extern bool is_bit_set(int *val, unsigned char index);
extern int dev_open(char *dev, int flags);
extern int open_dev(char *devnm);
extern void reopen_mddev(int mdfd);
extern int same_dev(char *one, char *two);
extern int compare_paths (char* path1,char* path2);
extern void enable_fds(int devices);
+extern void manage_fork_fds(int close_all);
+extern int continue_via_systemd(char *devnm, char *service_name);
+
+extern void ident_init(struct mddev_ident *ident);
extern int parse_auto(char *str, char *msg, int config);
extern struct mddev_ident *conf_get_ident(char *dev);
extern char *conf_get_program(void);
extern char *conf_get_homehost(int *require_homehostp);
extern char *conf_get_homecluster(void);
+extern int conf_get_monitor_delay(void);
extern char *conf_line(FILE *file);
extern char *conf_word(FILE *file, int allow_key);
extern void print_quoted(char *str);
struct mdinfo *info,
char *devname,
int verbose, int *rvp);
-extern int experimental(void);
extern void free_line(char *line);
extern int match_oneof(char *devices, char *devname);
#define FOREIGN 2
#define METADATA 3
extern int open_mddev(char *dev, int report_errors);
+extern int is_mddev(char *dev);
extern int open_container(int fd);
extern int metadata_container_matches(char *metadata, char *devnm);
extern int metadata_subdev_matches(char *metadata, char *devnm);
extern char *stat2kname(struct stat *st);
extern char *fd2kname(int fd);
extern char *stat2devnm(struct stat *st);
+bool stat_is_md_dev(struct stat *st);
extern char *fd2devnm(int fd);
extern void udev_block(char *devnm);
extern void udev_unblock(void);
extern int cluster_release_dlmlock(void);
extern void set_dlm_hooks(void);
+#define MSEC_TO_NSEC(msec) ((msec) * 1000000)
+#define USEC_TO_NSEC(usec) ((usec) * 1000)
+extern void sleep_for(unsigned int sec, long nsec, bool wake_after_interrupt);
+
#define _ROUND_UP(val, base) (((val) + (base) - 1) & ~(base - 1))
#define ROUND_UP(val, base) _ROUND_UP(val, (typeof(val))(base))
#define ROUND_UP_PTR(ptr, base) ((typeof(ptr)) \
return &ent->metadata_version[10+strlen(container)+1];
}
+/**
+ * signal_s() - Wrapper for sigaction() with signal()-like interface.
+ * @sig: The signal to set the signal handler to.
+ * @handler: The signal handler.
+ *
+ * Return: previous handler or SIG_ERR on failure.
+ */
+static inline sighandler_t signal_s(int sig, sighandler_t handler)
+{
+ struct sigaction new_act;
+ struct sigaction old_act;
+
+ new_act.sa_handler = handler;
+ new_act.sa_flags = 0;
+
+ if (sigaction(sig, &new_act, &old_act) == 0)
+ return old_act.sa_handler;
+
+ return SIG_ERR;
+}
+
#ifdef DEBUG
#define dprintf(fmt, arg...) \
fprintf(stderr, "%s: %s: "fmt, Name, __func__, ##arg)
#define dprintf_cont(fmt, arg...) \
({ if (0) fprintf(stderr, fmt, ##arg); 0; })
#endif
-#include <assert.h>
-#include <stdarg.h>
+
static inline int xasprintf(char **strp, const char *fmt, ...) {
va_list ap;
int ret;
#define makedev(M,m) (((M)<<8) | (m))
#endif
+enum r0layout {
+ RAID0_ORIG_LAYOUT = 1,
+ RAID0_ALT_MULTIZONE_LAYOUT = 2,
+};
+
/* for raid4/5/6 */
#define ALGORITHM_LEFT_ASYMMETRIC 0
#define ALGORITHM_RIGHT_ASYMMETRIC 1
#define RESYNC_NONE -1
#define RESYNC_DELAYED -2
#define RESYNC_PENDING -3
-#define RESYNC_UNKNOWN -4
+#define RESYNC_REMOTE -4
+#define RESYNC_UNKNOWN -5
/* When using "GET_DISK_INFO" it isn't certain how high
* we need to check. So we impose an absolute limit of
#define INVALID_SECTORS 1
/* And another special number needed for --data_offset=variable */
#define VARIABLE_OFFSET 3
+
+/**
+ * This is true for native and DDF, IMSM allows 16.
+ */
+#define MD_NAME_MAX 32
+
+/**
+ * is_container() - check if @level is &LEVEL_CONTAINER
+ * @level: level value
+ *
+ * return:
+ * 1 if level is equal to &LEVEL_CONTAINER, 0 otherwise.
+ */
+static inline int is_container(const int level)
+{
+ if (level == LEVEL_CONTAINER)
+ return 1;
+ return 0;
+}
projects / thirdparty / mdadm.git / blobdiff