X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=blobdiff_plain;f=Detail.c;h=25b91b1e256b5cdf94fe9ff3d69a052de024f6cb;hp=232b458a7dd0ee969fe65759881a404be7d0b28a;hb=e4965ef8461b3d0db6e94939f07d814d819f86c2;hpb=9a9dab3670110c2db7fe6f716977b72adedbf855

diff --git a/Detail.c b/Detail.c
index 232b458a..25b91b1e 100644
--- a/Detail.c
+++ b/Detail.c
@@ -1,7 +1,7 @@
 /*
  * mdadm - manage Linux "md" devices aka RAID arrays.
  *
- * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -31,40 +31,53 @@
 #include	"md_p.h"
 #include	"md_u.h"
 
-int Detail(char *dev, int brief)
+int Detail(char *dev, int brief, int export, int test, char *homehost)
 {
 	/*
 	 * Print out details for an md array by using
 	 * GET_ARRAY_INFO and GET_DISK_INFO ioctl calls
 	 */
 
-	int fd = open(dev, O_RDONLY, 0);
+	int fd = open(dev, O_RDONLY);
 	int vers;
 	mdu_array_info_t array;
+	mdu_disk_info_t *disks;
+	int next;
 	int d;
 	time_t atime;
 	char *c;
+	char *devices = NULL;
+	int spares = 0;
+	struct stat stb;
+	int is_26 = get_linux_version() >= 2006000;
+	int is_rebuilding = 0;
+	int failed = 0;
+	struct supertype *st = NULL;
+	int max_disks = MD_SB_DISKS; /* just a default */
+	struct mdinfo info;
+	struct mdinfo *sra;
 
-	mdp_super_t super;
-	int have_super = 0;
+	int rv = test ? 4 : 1;
+	int avail_disks = 0;
+	char *avail;
 
 	if (fd < 0) {
 		fprintf(stderr, Name ": cannot open %s: %s\n",
 			dev, strerror(errno));
-		return 1;
+		return rv;
 	}
 	vers = md_get_version(fd);
 	if (vers < 0) {
 		fprintf(stderr, Name ": %s does not appear to be an md device\n",
 			dev);
 		close(fd);
-		return 1;
+		return rv;
 	}
 	if (vers < 9000) {
 		fprintf(stderr, Name ": cannot get detail for md device %s: driver version too old.\n",
 			dev);
 		close(fd);
-		return 1;
+		return rv;
 	}
 	if (ioctl(fd, GET_ARRAY_INFO, &array)<0) {
 		if (errno == ENODEV)
@@ -74,105 +87,333 @@ int Detail(char *dev, int brief)
 			fprintf(stderr, Name ": cannot get array detail for %s: %s\n",
 				dev, strerror(errno));
 		close(fd);
-		return 1;
+		return rv;
 	}
+	sra = sysfs_read(fd, 0, GET_VERSION);
+	st = super_by_fd(fd);
+
+	if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
+		stb.st_rdev = 0;
+	rv = 0;
+
+	if (st) max_disks = st->max_devs;
+
+	/* try to load a superblock */
+	for (d= 0; d<max_disks; d++) {
+		mdu_disk_info_t disk;
+		char *dv;
+		disk.number = d;
+		if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
+			continue;
+		if (d >= array.raid_disks &&
+		    disk.major == 0 &&
+		    disk.minor == 0)
+			continue;
+		if ((dv=map_dev(disk.major, disk.minor, 1))) {
+			if ((!st || !st->sb) &&
+			    (disk.state & (1<<MD_DISK_ACTIVE))) {
+				/* try to read the superblock from this device
+				 * to get more info
+				 */
+				int fd2 = dev_open(dv, O_RDONLY);
+				if (fd2 >=0 && st &&
+				    st->ss->load_super(st, fd2, NULL) == 0) {
+					st->ss->getinfo_super(st, &info);
+					if (info.array.ctime != array.ctime ||
+					    info.array.level != array.level)
+						st->ss->free_super(st);
+				}
+				if (fd2 >= 0) close(fd2);
+			}
+		}
+	}
+
 	/* Ok, we have some info to print... */
 	c = map_num(pers, array.level);
-	if (brief) 
-		printf("ARRAY %s level=%s disks=%d", dev, c?c:"-unknown-",array.raid_disks );
-	else {
-		int array_size;
-		if (ioctl(fd, BLKGETSIZE, &array_size))
-			array_size = 0;
-		else array_size>>= 1;
+
+	if (export) {
+		if (c)
+			printf("MD_LEVEL=%s\n", c);
+		printf("MD_DEVICES=%d\n", array.raid_disks);
+		if (sra && sra->array.major_version < 0)
+			printf("MD_METADATA=%s\n", sra->text_version);
+		else
+			printf("MD_METADATA=%02d.%02d\n",
+			       array.major_version, array.minor_version);
+
+		if (st && st->sb)
+			st->ss->export_detail_super(st);
+		goto out;
+	}
+
+	if (brief) {
+		mdu_bitmap_file_t bmf;
+		printf("ARRAY %s level=%s num-devices=%d", dev,
+		       c?c:"-unknown-",
+		       array.raid_disks );
+		if (sra && sra->array.major_version < 0)
+			printf(" metadata=%s", sra->text_version);
+		else
+			printf(" metadata=%02d.%02d",
+			       array.major_version, array.minor_version);
+
+		/* Only try GET_BITMAP_FILE for 0.90.01 and later */
+		if (vers >= 9001 &&
+		    ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
+		    bmf.pathname[0]) {
+			printf(" bitmap=%s", bmf.pathname);
+		}
+	} else {
+		mdu_bitmap_file_t bmf;
+		unsigned long long larray_size;
+		struct mdstat_ent *ms = mdstat_read(0, 0);
+		struct mdstat_ent *e;
+		int devnum = array.md_minor;
+		if (major(stb.st_rdev) != MD_MAJOR)
+			devnum = -1 - devnum;
+
+		for (e=ms; e; e=e->next)
+			if (e->devnum == devnum)
+				break;
+		if (!get_dev_size(fd, NULL, &larray_size))
+			larray_size = 0;
+
 		printf("%s:\n", dev);
-		printf("        Version : %02d.%02d.%02d\n",
-		       array.major_version, array.minor_version, array.patch_version);
+
+		if (sra && sra->array.major_version < 0)
+			printf("        Version : %s\n", sra->text_version);
+		else
+			printf("        Version : %02d.%02d\n",
+			       array.major_version, array.minor_version);
+
 		atime = array.ctime;
 		printf("  Creation Time : %.24s\n", ctime(&atime));
+		if (array.raid_disks == 0) c = "container";
 		printf("     Raid Level : %s\n", c?c:"-unknown-");
-		if (array_size)
-		printf("     Array Size : %d%s\n", array_size, human_size(array_size));
-		if (array.level >= 1)
-			printf("    Device Size : %d%s\n", array.size, human_size(array.size));
-		printf("     Raid Disks : %d\n", array.raid_disks);
-		printf("    Total Disks : %d\n", array.nr_disks);
+		if (larray_size)
+			printf("     Array Size : %llu%s\n", (larray_size>>10), human_size(larray_size));
+		if (array.level >= 1) {
+			if (array.major_version != 0 &&
+			    (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
+				unsigned long long dsize = get_component_size(fd);
+				if (dsize > 0)
+					printf("  Used Dev Size : %llu%s\n",
+					       dsize,
+					 human_size((long long)dsize<<10));
+				else
+					printf("  Used Dev Size : unknown\n");
+			} else
+				printf("  Used Dev Size : %d%s\n", array.size,
+				       human_size((long long)array.size<<10));
+		}
+		printf("   Raid Devices : %d\n", array.raid_disks);
+		printf("  Total Devices : %d\n", array.nr_disks);
 		printf("Preferred Minor : %d\n", array.md_minor);
-		printf("    Persistance : Superblock is %spersistant\n",
-		       array.not_persistent?"not ":"");
+		if (sra == NULL || sra->array.major_version >= 0)
+			printf("    Persistence : Superblock is %spersistent\n",
+			       array.not_persistent?"not ":"");
 		printf("\n");
+		/* Only try GET_BITMAP_FILE for 0.90.01 and later */
+		if (vers >= 9001 &&
+		    ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
+		    bmf.pathname[0]) {
+			printf("  Intent Bitmap : %s\n", bmf.pathname);
+			printf("\n");
+		} else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
+			printf("  Intent Bitmap : Internal\n\n");
 		atime = array.utime;
 		printf("    Update Time : %.24s\n", ctime(&atime));
-		printf("          State : %s, %serrors\n",
-		       (array.state&(1<<MD_SB_CLEAN))?"clean":"dirty",
-		       (array.state&(1<<MD_SB_ERRORS))?"":"no-");
-		printf("  Active Drives : %d\n", array.active_disks);
-		printf(" Working Drives : %d\n", array.working_disks);
-		printf("  Failed Drives : %d\n", array.failed_disks);
-		printf("   Spare Drives : %d\n", array.spare_disks);
+		printf("          State : %s%s%s%s\n",
+		       (array.state&(1<<MD_SB_CLEAN))?"clean":"active",
+		       array.active_disks < array.raid_disks? ", degraded":"",
+		       (!e || e->percent < 0) ? "" :
+		        (e->resync) ? ", resyncing": ", recovering",
+		       larray_size ? "": ", Not Started");
+		printf(" Active Devices : %d\n", array.active_disks);
+		printf("Working Devices : %d\n", array.working_disks);
+		printf(" Failed Devices : %d\n", array.failed_disks);
+		printf("  Spare Devices : %d\n", array.spare_disks);
 		printf("\n");
 		if (array.level == 5) {
 			c = map_num(r5layout, array.layout);
 			printf("         Layout : %s\n", c?c:"-unknown-");
 		}
+		if (array.level == 10) {
+			printf("         Layout :");
+			print_r10_layout(array.layout);
+			printf("\n");
+		}
 		switch (array.level) {
 		case 0:
 		case 4:
 		case 5:
-			printf("     Chunk Size : %dK\n", array.chunk_size/1024);
+		case 10:
+		case 6:
+			if (array.chunk_size)
+				printf("     Chunk Size : %dK\n\n",
+				       array.chunk_size/1024);
 			break;
 		case -1:
-			printf("       Rounding : %dK\n", array.chunk_size/1024);
+			printf("       Rounding : %dK\n\n", array.chunk_size/1024);
 			break;
 		default: break;
 		}
-	
-		printf("\n");
-		printf("    Number   Major   Minor   RaidDisk   State\n");
+
+		if (e && e->percent >= 0) {
+			printf(" Re%s Status : %d%% complete\n",
+			       (st && st->sb && info.reshape_active)?
+			          "shape":"build",
+			       e->percent);
+			is_rebuilding = 1;
+		}
+		free_mdstat(ms);
+
+		if (st->sb && info.reshape_active) {
+#if 0
+This is pretty boring
+			printf("  Reshape pos'n : %llu%s\n", (unsigned long long) info.reshape_progress<<9,
+			       human_size(info.reshape_progress<<9));
+#endif
+			if (info.delta_disks > 0)
+				printf("  Delta Devices : %d, (%d->%d)\n",
+				       info.delta_disks, array.raid_disks - info.delta_disks, array.raid_disks);
+			if (info.delta_disks < 0)
+				printf("  Delta Devices : %d, (%d->%d)\n",
+				       info.delta_disks, array.raid_disks, array.raid_disks + info.delta_disks);
+			if (info.new_level != array.level) {
+				char *c = map_num(pers, info.new_level);
+				printf("      New Level : %s\n", c?c:"-unknown-");
+			}
+			if (info.new_level != array.level ||
+			    info.new_layout != array.layout) {
+				if (info.new_level == 5) {
+					char *c = map_num(r5layout, info.new_layout);
+					printf("     New Layout : %s\n",
+					       c?c:"-unknown-");
+				}
+				if (info.new_level == 10) {
+					printf("     New Layout : near=%d, %s=%d\n",
+					       info.new_layout&255,
+					       (info.new_layout&0x10000)?"offset":"far",
+					       (info.new_layout>>8)&255);
+				}
+			}
+			if (info.new_chunk != array.chunk_size)
+				printf("  New Chunksize : %dK\n", info.new_chunk/1024);
+			printf("\n");
+		} else if (e && e->percent >= 0)
+			printf("\n");
+		if (st && st->sb)
+			st->ss->detail_super(st, homehost);
+
+		printf("    Number   Major   Minor   RaidDevice State\n");
 	}
-	for (d= 0; d<array.raid_disks+array.spare_disks; d++) {
+	disks = malloc(max_disks * sizeof(mdu_disk_info_t));
+	for (d=0; d<max_disks; d++) {
+		disks[d].state = (1<<MD_DISK_REMOVED);
+		disks[d].major = disks[d].minor = 0;
+		disks[d].number = disks[d].raid_disk = d;
+	}
+
+	next = array.raid_disks;
+	for (d=0; d < max_disks; d++) {
 		mdu_disk_info_t disk;
-		char *dv;
 		disk.number = d;
 		if (ioctl(fd, GET_DISK_INFO, &disk) < 0) {
-			fprintf(stderr, Name ": cannot get disk detail for disk %d: %s\n",
-				d, strerror(errno));
+			if (d < array.raid_disks)
+				fprintf(stderr, Name ": cannot get device detail for device %d: %s\n",
+					d, strerror(errno));
 			continue;
 		}
+		if (disk.major == 0 && disk.minor == 0)
+			continue;
+		if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks)
+			disks[disk.raid_disk] = disk;
+		else if (next < max_disks)
+			disks[next++] = disk;
+	}
+
+	avail = calloc(array.raid_disks, 1);
+	for (d= 0; d < max_disks; d++) {
+		char *dv;
+		mdu_disk_info_t disk = disks[d];
+
+		if (d >= array.raid_disks &&
+		    disk.major == 0 &&
+		    disk.minor == 0)
+			continue;
 		if (!brief) {
-			printf("   %5d   %5d    %5d    %5d     ", 
-			       disk.number, disk.major, disk.minor, disk.raid_disk);
-			if (disk.state & (1<<MD_DISK_FAULTY)) printf(" faulty");
+			if (d == array.raid_disks) printf("\n");
+			if (disk.raid_disk < 0)
+				printf("   %5d   %5d    %5d        -     ",
+				       disk.number, disk.major, disk.minor);
+			else
+				printf("   %5d   %5d    %5d    %5d     ",
+				       disk.number, disk.major, disk.minor, disk.raid_disk);
+			if (disk.state & (1<<MD_DISK_FAULTY)) {
+				printf(" faulty");
+				if (disk.raid_disk < array.raid_disks &&
+				    disk.raid_disk >= 0)
+					failed++;
+			}
 			if (disk.state & (1<<MD_DISK_ACTIVE)) printf(" active");
 			if (disk.state & (1<<MD_DISK_SYNC)) printf(" sync");
 			if (disk.state & (1<<MD_DISK_REMOVED)) printf(" removed");
-		}
-		if ((dv=map_dev(disk.major, disk.minor))) {
-			if (!brief) printf("   %s", dv);
-			if (!have_super) {
-				/* try to read the superblock from this device
-				 * to get more info
-				 */
-				int fd = open(dv, O_RDONLY);
-				if (fd >=0 &&
-				    load_super(fd, &super) ==0 &&
-				    super.ctime == array.ctime &&
-				    super.level == array.level)
-					have_super = 1;
+			if (disk.state & (1<<MD_DISK_WRITEMOSTLY)) printf(" writemostly");
+			if ((disk.state &
+			     ((1<<MD_DISK_ACTIVE)|(1<<MD_DISK_SYNC)|(1<<MD_DISK_REMOVED)))
+			    == 0) {
+				printf(" spare");
+				if (is_26) {
+					if (disk.raid_disk < array.raid_disks && disk.raid_disk >= 0)
+						printf(" rebuilding");
+				} else if (is_rebuilding && failed) {
+					/* Taking a bit of a risk here, we remove the
+					 * device from the array, and then put it back.
+					 * If this fails, we are rebuilding
+					 */
+					int err = ioctl(fd, HOT_REMOVE_DISK, makedev(disk.major, disk.minor));
+					if (err == 0) ioctl(fd, HOT_ADD_DISK, makedev(disk.major, disk.minor));
+					if (err && errno ==  EBUSY)
+						printf(" rebuilding");
+				}
 			}
 		}
+		if (disk.state == 0) spares++;
+		if (test && d < array.raid_disks
+		    && !(disk.state & (1<<MD_DISK_SYNC)))
+			rv |= 1;
+		if (d < array.raid_disks
+		    && (disk.state & (1<<MD_DISK_SYNC))) {
+			avail_disks ++;
+			avail[d] = 1;
+		}
+		if ((dv=map_dev(disk.major, disk.minor, 0))) {
+			if (brief) {
+				if (devices) {
+					devices = realloc(devices,
+							  strlen(devices)+1+strlen(dv)+1);
+					strcat(strcat(devices,","),dv);
+				} else
+					devices = strdup(dv);
+			} else
+				printf("   %s", dv);
+		}
 		if (!brief) printf("\n");
 	}
-	if (have_super) {
-		if (brief) printf(" UUID=");
-		else printf("           UUID : ");
-	    	if (super.minor_version >= 90)
-			printf("%08x:%08x:%08x:%08x", super.set_uuid0, super.set_uuid1,
-			       super.set_uuid2, super.set_uuid3);
-		else
-			printf("%08x", super.set_uuid0);
-		if (!brief) printf("\n");
-	}
+	if (spares && brief) printf(" spares=%d", spares);
+	if (brief && st && st->sb)
+		st->ss->brief_detail_super(st);
+	st->ss->free_super(st);
+
+	if (brief > 1 && devices) printf("\n   devices=%s", devices);
 	if (brief) printf("\n");
-	return 0;
+	if (test &&
+	    !enough(array.level, array.raid_disks, array.layout,
+		    1, avail, avail_disks))
+		rv = 2;
+
+out:
+	close(fd);
+	return rv;
 }