X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=Examine.c;h=7013480d6dd80846cc2f464d3ba23c9e8e21284d;hb=b06815989179e0f153e44e4336290e655edce9a1;hp=bb4290dc318f60333a507e15f392d7d2a36a13c9;hpb=52826846282e9e224e05dde6d2e4cb38d1fefec7;p=thirdparty%2Fmdadm.git

diff --git a/Examine.c b/Examine.c
index bb4290dc..7013480d 100644
--- a/Examine.c
+++ b/Examine.c
@@ -1,7 +1,7 @@
 /*
- * mdctl - manage Linux "md" devices aka RAID arrays.
+ * mdadm - manage Linux "md" devices aka RAID arrays.
  *
- * Copyright (C) 2001 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2013 Neil Brown <neilb@suse.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -19,22 +19,20 @@
  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  *    Author: Neil Brown
- *    Email: <neilb@cse.unsw.edu.au>
- *    Paper: Neil Brown
- *           School of Computer Science and Engineering
- *           The University of New South Wales
- *           Sydney, 2052
- *           Australia
+ *    Email: <neilb@suse.de>
  */
 
-#include	"mdctl.h"
+#include	"mdadm.h"
+#include	"dlink.h"
 
 #if ! defined(__BIG_ENDIAN) && ! defined(__LITTLE_ENDIAN)
 #error no endian defined
 #endif
 #include	"md_u.h"
 #include	"md_p.h"
-int Examine(char *dev)
+int Examine(struct mddev_dev *devlist,
+	    struct context *c,
+	    struct supertype *forcest)
 {
 
 	/* Read the raid superblock from a device and
@@ -49,120 +47,182 @@ int Examine(char *dev)
 	 *
 	 *   utime, state etc
 	 *
+	 * If (brief) gather devices for same array and just print a mdadm.conf
+	 * line including devices=
+	 * if devlist==NULL, use conf_get_devs()
 	 */
-	int fd = open(dev, O_RDONLY);
-	time_t atime;
-	mdp_super_t super;
-	int d;
-	char *c;
-	int rv;
+	int fd;
+	int rv = 0;
 
-	if (fd < 0) {
-		fprintf(stderr,Name ": cannot open %s: %s\n",
-			dev, strerror(errno));
-		return 1;
+	struct array {
+		struct supertype *st;
+		struct mdinfo info;
+		void *devs;
+		struct array *next;
+		int spares;
+	} *arrays = NULL;
+
+	for (; devlist ; devlist = devlist->next) {
+		struct supertype *st;
+		int have_container = 0;
+		int err = 0;
+		int container = 0;
+
+		fd = dev_open(devlist->devname, O_RDONLY);
+		if (fd < 0) {
+			if (!c->scan) {
+				pr_err("cannot open %s: %s\n",
+				       devlist->devname, strerror(errno));
+				rv = 1;
+			}
+			continue;
+		}
+
+		if (forcest)
+			st = dup_super(forcest);
+		else if (must_be_container(fd)) {
+			/* might be a container */
+			st = super_by_fd(fd, NULL);
+			container = 1;
+		} else
+			st = guess_super(fd);
+		if (st) {
+			err = 1;
+			st->ignore_hw_compat = 1;
+			if (!container)
+				err = st->ss->load_super(st, fd,
+							 (c->brief||c->scan) ? NULL
+							 :devlist->devname);
+			if (err && st->ss->load_container) {
+				err = st->ss->load_container(st, fd,
+							     (c->brief||c->scan) ? NULL
+							     :devlist->devname);
+				if (!err)
+					have_container = 1;
+			}
+			st->ignore_hw_compat = 0;
+		} else {
+			if (!c->brief) {
+				pr_err("No md superblock detected on %s.\n", devlist->devname);
+				rv = 1;
+			}
+			err = 1;
+		}
+		close(fd);
+
+		if (err) {
+			if (st)
+				st->ss->free_super(st);
+			continue;
+		}
+
+		if (c->SparcAdjust)
+			st->ss->update_super(st, NULL, "sparc2.2",
+					     devlist->devname, 0, 0, NULL);
+		/* Ok, its good enough to try, though the checksum could be wrong */
+
+		if (c->brief && st->ss->brief_examine_super == NULL) {
+			if (!c->scan)
+				pr_err("No brief listing for %s on %s\n",
+				       st->ss->name, devlist->devname);
+		} else if (c->brief) {
+			struct array *ap;
+			char *d;
+			for (ap = arrays; ap; ap = ap->next) {
+				if (st->ss == ap->st->ss &&
+				    st->ss->compare_super(ap->st, st) == 0)
+					break;
+			}
+			if (!ap) {
+				ap = xmalloc(sizeof(*ap));
+				ap->devs = dl_head();
+				ap->next = arrays;
+				ap->spares = 0;
+				ap->st = st;
+				arrays = ap;
+				st->ss->getinfo_super(st, &ap->info, NULL);
+			} else
+				st->ss->getinfo_super(st, &ap->info, NULL);
+			if (!have_container &&
+			    !(ap->info.disk.state & (1<<MD_DISK_SYNC)))
+				ap->spares++;
+			d = dl_strdup(devlist->devname);
+			dl_add(ap->devs, d);
+		} else if (c->export) {
+			if (st->ss->export_examine_super)
+				st->ss->export_examine_super(st);
+			st->ss->free_super(st);
+		} else {
+			printf("%s:\n",devlist->devname);
+			st->ss->examine_super(st, c->homehost);
+			st->ss->free_super(st);
+		}
 	}
+	if (c->brief) {
+		struct array *ap;
+		for (ap = arrays; ap; ap = ap->next) {
+			char sep='=';
+			char *d;
+			int newline = 0;
 
-	rv = load_super(fd, &super);
-	close(fd);
-	switch(rv) {
-	case 1:
-		fprintf(stderr, Name ": cannot find device size for %s: %s\n",
-			dev, strerror(errno));
-		return 1;
-	case 2:
-/*		fprintf(stderr, Name ": %s is too small for md: size is %ld sectors\n",
-			dev, size);
-*/
-		fprintf(stderr, Name ": %s is too small for md\n",
-			dev);
-		return 1;
-	case 3:
-		fprintf(stderr, Name ": Cannot seek to superblock on %s: %s\n",
-			dev, strerror(errno));
-		return 1;
-	case 4:
-		fprintf(stderr, Name ": Cannot read superblock on %s\n",
-			dev);
-		return 1;
-	case 5:
-		fprintf(stderr, Name ": No super block found on %s (Expected magic %08x, got %08x)\n",
-			dev, MD_SB_MAGIC, super.md_magic);
-		return 1;
-	case 6:
-		fprintf(stderr, Name ": Cannot interpret superblock on %s - version is %d\n",
-			dev, super.major_version);
-		return 1;
+			ap->st->ss->brief_examine_super(ap->st, c->verbose > 0);
+			if (ap->spares)
+				newline += printf("   spares=%d", ap->spares);
+			if (c->verbose > 0) {
+				newline += printf("   devices");
+				for (d = dl_next(ap->devs);
+				     d != ap->devs;
+				     d=dl_next(d)) {
+					printf("%c%s", sep, d);
+					sep=',';
+				}
+			}
+			if (ap->st->ss->brief_examine_subarrays) {
+				if (newline)
+					printf("\n");
+				ap->st->ss->brief_examine_subarrays(ap->st, c->verbose);
+			}
+			ap->st->ss->free_super(ap->st);
+			/* FIXME free ap */
+			if (ap->spares || c->verbose > 0)
+				printf("\n");
+		}
 	}
-    
-	/* Ok, its good enough to try, though the checksum could be wrong */
-	printf("%s:\n",dev);
-	printf("          Magic : %08x\n", super.md_magic);
-	printf("        Version : %02d.%02d.%02d\n", super.major_version, super.minor_version,
-	       super.patch_version);
-	if (super.minor_version >= 90)
-		printf("           UUID : %08x:%08x:%08x:%08x\n", super.set_uuid0, super.set_uuid1,
-		       super.set_uuid2, super.set_uuid3);
-	else
-		printf("           UUID : %08x\n", super.set_uuid0);
+	return rv;
+}
+
+int ExamineBadblocks(char *devname, int brief, struct supertype *forcest)
+{
+	int fd = dev_open(devname, O_RDONLY);
+	struct supertype *st = forcest;
+	int err = 1;
 
-	atime = super.ctime;
-	printf("  Creation Time : %.24s\n", ctime(&atime));
-	c=map_num(pers, super.level);
-	printf("     Raid Level : %s\n", c?c:"-unknown-");
-	printf("           Size : %d\n", super.size);
-	printf("     Raid Disks : %d\n", super.raid_disks);
-	printf("    Total Disks : %d\n", super.nr_disks);
-	printf("Preferred Minor : %d\n", super.md_minor);
-	printf("\n");
-	atime = super.utime;
-	printf("    Update Time : %.24s\n", ctime(&atime));
-	printf("          State : %s, %serrors\n",
-	       (super.state&(1<<MD_SB_CLEAN))?"clean":"dirty",
-	       (super.state&(1<<MD_SB_ERRORS))?"":"no-");
-	printf("  Active Drives : %d\n", super.active_disks);
-	printf(" Working Drives : %d\n", super.working_disks);
-	printf("  Failed Drives : %d\n", super.failed_disks);
-	printf("   Spare Drives : %d\n", super.spare_disks);
-	if (calc_sb_csum(&super) == super.sb_csum)
-	    printf("       Checksum : %x - correct\n", super.sb_csum);
-	else
-	    printf("       Checksum : %x - expected %x\n", super.sb_csum, calc_sb_csum(&super));
-	printf("         Events : %d.%d\n", super.events_hi, super.events_lo);
-	printf("\n");
-	if (super.level == 5) {
-		c = map_num(r5layout, super.layout);
-		printf("         Layout : %s\n", c?c:"-unknown-");
+	if (fd < 0) {
+		pr_err("cannot open %s: %s\n", devname, strerror(errno));
+		return 1;
 	}
-	switch(super.level) {
-	case 0:
-	case 4:
-	case 5:
-		printf("     Chunk Size : %dK\n", super.chunk_size/1024);
-		break;
-	case -1:
-		printf("       Rounding : %dK\n", super.chunk_size/1024);
-		break;
-	default: break;		
+	if (!st)
+		st = guess_super(fd);
+	if (!st) {
+		if (!brief)
+			pr_err("No md superblock detected on %s\n", devname);
+		goto out;
 	}
-	printf("\n");
-	printf("      Number   Major   Minor   RaidDisk   State\n");
-	for (d= -1; d<(signed int)(super.raid_disks+super.spare_disks); d++) {
-		mdp_disk_t *dp;
-		char *dv;
-		char nb[5];
-		if (d>=0) dp = &super.disks[d];
-		else dp = &super.this_disk;
-		sprintf(nb, "%4d", d);
-		printf("%4s %5d   %5d    %5d    %5d     ", d < 0 ? "this" :  nb,
-		       dp->number, dp->major, dp->minor, dp->raid_disk);
-		if (dp->state & (1<<MD_DISK_FAULTY)) printf(" faulty");
-		if (dp->state & (1<<MD_DISK_ACTIVE)) printf(" active");
-		if (dp->state & (1<<MD_DISK_SYNC)) printf(" sync");
-		if (dp->state & (1<<MD_DISK_REMOVED)) printf(" removed");
-		if ((dv=map_dev(dp->major, dp->minor)))
-		    printf("   %s", dv);
-		printf("\n");
+	if (!st->ss->examine_badblocks) {
+		pr_err("%s metadata does not support badblocks\n", st->ss->name);
+		goto out;
+	}
+	err = st->ss->load_super(st, fd, brief ? NULL : devname);
+	if (err)
+		goto out;
+	err = st->ss->examine_badblocks(st, fd, devname);
+
+out:
+	if (fd >= 0)
+		close(fd);
+	if (st) {
+		st->ss->free_super(st);
+		free(st);
 	}
-	return 0;
+	return err;
 }