X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=blobdiff_plain;f=Detail.c;h=ae00bb493373c46292927fd64d3743c472ec2833;hp=d322732c4222433092997ad45072bc3c2924f48a;hb=ff54de6e47163944185f231700e72d3122b58f4c;hpb=16c6fa807c1e43a1a12bbeb7668b4166d14b2cc8

diff --git a/Detail.c b/Detail.c
index d322732c..ae00bb49 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
@@ -30,15 +30,16 @@
 #include	"mdadm.h"
 #include	"md_p.h"
 #include	"md_u.h"
+#include	<dirent.h>
 
-int Detail(char *dev, int brief, int test)
+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;
@@ -53,10 +54,15 @@ int Detail(char *dev, int brief, int test)
 	int is_rebuilding = 0;
 	int failed = 0;
 	struct supertype *st = NULL;
-	int max_disks = MD_SB_DISKS;
+	int max_disks = MD_SB_DISKS; /* just a default */
+	struct mdinfo info;
+	struct mdinfo *sra;
+	char *member = NULL;
+	char *container = NULL;
 
-	void *super = NULL;
 	int rv = test ? 4 : 1;
+	int avail_disks = 0;
+	char *avail;
 
 	if (fd < 0) {
 		fprintf(stderr, Name ": cannot open %s: %s\n",
@@ -86,13 +92,28 @@ int Detail(char *dev, int brief, int test)
 		close(fd);
 		return rv;
 	}
-	st = super_by_version(array.major_version, array.minor_version);
+	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;
+	if (st)
+		max_disks = st->max_devs;
+
+	if (sra && is_subarray(sra->text_version) &&
+		strchr(sra->text_version+1, '/')) {
+		/* This is a subarray of some container.
+		 * We want the name of the container, and the member
+		 */
+		char *s = strchr(sra->text_version+1, '/');
+		int dn;
+		*s++ = '\0';
+		member = s;
+		dn = devname2devnum(sra->text_version+1);
+		container = map_dev(dev2major(dn), dev2minor(dn), 1);
+	}
 
 	/* try to load a superblock */
 	for (d= 0; d<max_disks; d++) {
@@ -106,20 +127,20 @@ int Detail(char *dev, int brief, int test)
 		    disk.minor == 0)
 			continue;
 		if ((dv=map_dev(disk.major, disk.minor, 1))) {
-			if (!super && (disk.state & (1<<MD_DISK_ACTIVE))) {
+			if ((!st || !st->sb) &&
+			    (array.raid_disks == 0 || 
+			     (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, &super, NULL) == 0) {
-					struct mdinfo info;
-					st->ss->getinfo_super(&info, super);
-					if (info.array.ctime != array.ctime ||
-					    info.array.level != array.level) {
-						free(super);
-						super = NULL;
-					}
+				    st->ss->load_super(st, fd2, NULL) == 0) {
+					st->ss->getinfo_super(st, &info);
+					if (array.raid_disks != 0 && /* container */
+					    (info.array.ctime != array.ctime ||
+					     info.array.level != array.level))
+						st->ss->free_super(st);
 				}
 				if (fd2 >= 0) close(fd2);
 			}
@@ -128,11 +149,61 @@ int Detail(char *dev, int brief, int test)
 
 	/* Ok, we have some info to print... */
 	c = map_num(pers, array.level);
-	if (brief) 
-		printf("ARRAY %s level=%s num-devices=%d", dev, c?c:"-unknown-",array.raid_disks );
-	else {
+
+	if (export) {
+		if (array.raid_disks) {
+			if (c)
+				printf("MD_LEVEL=%s\n", c);
+			printf("MD_DEVICES=%d\n", array.raid_disks);
+		} else {
+			printf("MD_LEVEL=container\n");
+			printf("MD_DEVICES=%d\n", array.nr_disks);
+		}
+		if (container) {
+			printf("MD_CONTAINER=%s\n", container);
+			printf("MD_MEMBER=%s\n", member);
+		} else {
+			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;
+		if (array.raid_disks)
+			printf("ARRAY %s level=%s num-devices=%d", dev,
+			       c?c:"-unknown-",
+			       array.raid_disks );
+		else
+			printf("ARRAY %s level=container num-devices=%d",
+			       dev, array.nr_disks);
+
+		if (container) {
+			printf(" container=%s", container);
+			printf(" member=%s", member);
+		} else {
+			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 array_size;
 		unsigned long long larray_size;
 		struct mdstat_ent *ms = mdstat_read(0, 0);
 		struct mdstat_ent *e;
@@ -143,23 +214,25 @@ int Detail(char *dev, int brief, int test)
 		for (e=ms; e; e=e->next)
 			if (e->devnum == devnum)
 				break;
-#ifdef BLKGETSIZE64
-		if (ioctl(fd, BLKGETSIZE64, &larray_size)==0)
-			;
-		else
-#endif
-			if (ioctl(fd, BLKGETSIZE, &array_size)==0) {
-				larray_size = array_size;
-				larray_size <<= 9;
-			}
-		
-		else larray_size = 0;
+		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 (container)
+			printf("      Container : %s, member %s\n", container, member);
+		else {
+		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 (atime)
+			printf("  Creation Time : %.24s\n", ctime(&atime));
+		if (array.raid_disks == 0) c = "container";
 		printf("     Raid Level : %s\n", c?c:"-unknown-");
 		if (larray_size)
 			printf("     Array Size : %llu%s\n", (larray_size>>10), human_size(larray_size));
@@ -168,43 +241,60 @@ int Detail(char *dev, int brief, int test)
 			    (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
 				unsigned long long dsize = get_component_size(fd);
 				if (dsize > 0)
-					printf("    Device Size : %llu%s\n", dsize, human_size((long long)array.size<<10));
+					printf("  Used Dev Size : %llu%s\n",
+					       dsize,
+					 human_size((long long)dsize<<10));
 				else
-					printf("    Device Size : unknown\n");
+					printf("  Used Dev Size : unknown\n");
 			} else
-				printf("    Device Size : %d%s\n", array.size, human_size((long long)array.size<<10));
+				printf("  Used Dev Size : %d%s\n", array.size,
+				       human_size((long long)array.size<<10));
 		}
-		printf("   Raid Devices : %d\n", array.raid_disks);
+		if (array.raid_disks)
+			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("    Persistence : Superblock is %spersistent\n",
-		       array.not_persistent?"not ":"");
+		if (!container && 
+		    ((sra == NULL && array.major_version == 0) ||
+		     (sra && sra->array.major_version == 0)))
+			printf("Preferred Minor : %d\n", array.md_minor);
+		if (sra == NULL || sra->array.major_version >= 0)
+			printf("    Persistence : Superblock is %spersistent\n",
+			       array.not_persistent?"not ":"");
 		printf("\n");
-		if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
-			bmf.pathname[0]) {
+		/* 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%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");
-		printf(" Active Devices : %d\n", array.active_disks);
+		if (atime)
+			printf("    Update Time : %.24s\n", ctime(&atime));
+		if (array.raid_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");
+		if (array.raid_disks)
+			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);
+		if (array.raid_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 : near=%d, far=%d\n", 
-			       array.layout&255, (array.layout>>8)&255);
+			printf("         Layout : near=%d, %s=%d\n",
+			       array.layout&255, (array.layout&0x10000)?"offset":"far",
+			       (array.layout>>8)&255);
 		}
 		switch (array.level) {
 		case 0:
@@ -212,24 +302,102 @@ int Detail(char *dev, int brief, int test)
 		case 5:
 		case 10:
 		case 6:
-			printf("     Chunk Size : %dK\n\n", array.chunk_size/1024);
+			if (array.chunk_size)
+				printf("     Chunk Size : %dK\n\n",
+				       array.chunk_size/1024);
 			break;
 		case -1:
 			printf("       Rounding : %dK\n\n", array.chunk_size/1024);
 			break;
 		default: break;
 		}
-	
+
 		if (e && e->percent >= 0) {
-			printf(" Rebuild Status : %d%% complete\n\n", e->percent);
+			printf(" Re%s Status : %d%% complete\n",
+			       (st && st->sb && info.reshape_active)?
+			          "shape":"build",
+			       e->percent);
 			is_rebuilding = 1;
 		}
 		free_mdstat(ms);
 
-		if (super && st)
-			st->ss->detail_super(super);
+		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);
+
+		if (array.raid_disks == 0 && sra && sra->array.major_version == -1
+		    && sra->array.minor_version == -2 && sra->text_version[0] != '/') {
+			/* This looks like a container.  Find any active arrays
+			 * That claim to be a member.
+			 */
+			DIR *dir = opendir("/sys/block");
+			struct dirent *de;
+
+			printf("  Member Arrays :");
+
+			while (dir && (de = readdir(dir)) != NULL) {
+				char path[200];
+				char vbuf[1024];
+				int nlen = strlen(sra->sys_name);
+				int dn;
+				if (de->d_name[0] == '.')
+					continue;
+				sprintf(path, "/sys/block/%s/md/metadata_version",
+					de->d_name);
+				if (load_sys(path, vbuf) < 0)
+					continue;
+				if (strncmp(vbuf, "external:", 9) != 0 ||
+				    !is_subarray(sra->sys_name+9) ||
+				    strncmp(vbuf+10, sra->sys_name, nlen) != 0 ||
+				    vbuf[10+nlen] != '/')
+					continue;
+				dn = devname2devnum(de->d_name);
+				printf(" %s", map_dev(dev2major(dn),
+						      dev2minor(dn), 1));
+			}
+			if (dir)
+				closedir(dir);
+			printf("\n\n");
+		}
 
-		printf("    Number   Major   Minor   RaidDevice State\n");
+		if (array.raid_disks)
+			printf("    Number   Major   Minor   RaidDevice State\n");
+		else
+			printf("    Number   Major   Minor   RaidDevice\n");
 	}
 	disks = malloc(max_disks * sizeof(mdu_disk_info_t));
 	for (d=0; d<max_disks; d++) {
@@ -250,12 +418,13 @@ int Detail(char *dev, int brief, int test)
 		}
 		if (disk.major == 0 && disk.minor == 0)
 			continue;
-		if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks) 
+		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];
@@ -267,13 +436,16 @@ int Detail(char *dev, int brief, int test)
 		if (!brief) {
 			if (d == array.raid_disks) printf("\n");
 			if (disk.raid_disk < 0)
-				printf("   %5d   %5d    %5d        -     ", 
+				printf("   %5d   %5d    %5d        -     ",
 				       disk.number, disk.major, disk.minor);
 			else
-				printf("   %5d   %5d    %5d    %5d     ", 
+				printf("   %5d   %5d    %5d    %5d     ",
 				       disk.number, disk.major, disk.minor, disk.raid_disk);
-			if (disk.state & (1<<MD_DISK_FAULTY)) { 
-				printf(" faulty"); 
+		}
+		if (!brief && array.raid_disks) {
+
+			if (disk.state & (1<<MD_DISK_FAULTY)) {
+				printf(" faulty");
 				if (disk.raid_disk < array.raid_disks &&
 				    disk.raid_disk >= 0)
 					failed++;
@@ -302,10 +474,13 @@ int Detail(char *dev, int brief, int test)
 			}
 		}
 		if (disk.state == 0) spares++;
-		if (test && d < array.raid_disks && disk.state & (1<<MD_DISK_FAULTY)) {
-			if ((rv & 1) && (array.level ==4 || array.level == 5))
-				rv |= 2;
+		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) {
@@ -320,13 +495,19 @@ int Detail(char *dev, int brief, int test)
 		}
 		if (!brief) printf("\n");
 	}
-	if (spares && brief) printf(" spares=%d", spares);
-	if (super && brief && st)
-		st->ss->brief_detail_super(super);
+	if (spares && brief && array.raid_disks) 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");
-	if (test && (rv&2)) rv &= ~1;
+	if (test &&
+	    !enough(array.level, array.raid_disks, array.layout,
+		    1, avail, avail_disks))
+		rv = 2;
+
+out:
 	close(fd);
 	return rv;
 }