X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=Manage.c;h=660580b9c4ed247a75534b8758f25e8ba5770bf3;hb=280a927d3d8da258a70df13df4f780d823fc1da2;hp=eda275a9ee24a2f7fad4e1753931a40ba857dde0;hpb=82b27616de634964db1a71bd5d9813db71e391a1;p=thirdparty%2Fmdadm.git

diff --git a/Manage.c b/Manage.c
index eda275a9..660580b9 100644
--- a/Manage.c
+++ b/Manage.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) 2001-2006 Neil Brown <neilb@suse.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -27,7 +27,7 @@
  *           Australia
  */
 
-#include "mdctl.h"
+#include "mdadm.h"
 #include "md_u.h"
 #include "md_p.h"
 
@@ -72,18 +72,17 @@ int Manage_ro(char *devname, int fd, int readonly)
 	return 0;			
 }
 
-int Manage_runstop(char *devname, int fd, int runstop)
+int Manage_runstop(char *devname, int fd, int runstop, int quiet)
 {
 	/* Run or stop the array. array must already be configured
 	 * required >= 0.90.0
 	 */
-	mdu_array_info_t array;
 	mdu_param_t param; /* unused */
 
 	if (runstop == -1 && md_get_version(fd) < 9000) {
 		if (ioctl(fd, STOP_MD, 0)) {
-			fprintf(stderr, Name ": stopping device %s failed: %s\n",
-				devname, strerror(errno));
+			if (!quiet) fprintf(stderr, Name ": stopping device %s failed: %s\n",
+					    devname, strerror(errno));
 			return 1;
 		}
 	}
@@ -107,17 +106,56 @@ int Manage_runstop(char *devname, int fd, int runstop)
 		}
 	} else if (runstop < 0){
 		if (ioctl(fd, STOP_ARRAY, NULL)) {
-			fprintf(stderr, Name ": fail to re writable for %s: %s\n",
-				devname, strerror(errno));
+			if (!quiet)
+				fprintf(stderr, Name ": fail to stop array %s: %s\n",
+					devname, strerror(errno));
 			return 1;
 		}
 	}
 	return 0;
 }
 
+int Manage_resize(char *devname, int fd, long long size, int raid_disks)
+{
+	mdu_array_info_t info;
+	if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
+		fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
+			devname, strerror(errno));
+		return 1;
+	}
+	if (size >= 0)
+		info.size = size;
+	if (raid_disks > 0)
+		info.raid_disks = raid_disks;
+	if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
+		fprintf(stderr, Name ": Cannot set device size/shape for %s: %s\n",
+			devname, strerror(errno));
+		return 1;
+	}
+	return 0;
+}
+
+int Manage_reconfig(char *devname, int fd, int layout)
+{
+	mdu_array_info_t info;
+	if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
+		fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
+			devname, strerror(errno));
+		return 1;
+	}
+	info.layout = layout;
+	printf("layout set to %d\n", info.layout);
+	if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
+		fprintf(stderr, Name ": Cannot set layout for %s: %s\n",
+			devname, strerror(errno));
+		return 1;
+	}
+	return 0;
+}
+
 int Manage_subdevs(char *devname, int fd,
-		   int devcnt, char *devnames[], int devmodes[])
- {
+		   mddev_dev_t devlist, int verbose)
+{
 	/* do something to each dev.
 	 * devmode can be
 	 *  'a' - add the device
@@ -128,44 +166,135 @@ int Manage_subdevs(char *devname, int fd,
 	 */
 	mdu_array_info_t array;
 	mdu_disk_info_t disc;
+	mddev_dev_t dv;
 	struct stat stb;
-	int i,j;
+	int j;
+	int tfd;
+	struct supertype *st;
+	void *dsuper = NULL;
+	void *osuper = NULL; /* original super */
+	int duuid[4];
+	int ouuid[4];
 
 	if (ioctl(fd, GET_ARRAY_INFO, &array)) {
 		fprintf(stderr, Name ": cannot get array info for %s\n",
 			devname);
 		return 1;
 	}
-	for (i=0 ; i<devcnt; i++) {
-		if (stat(devnames[i], &stb)) {
+	for (dv = devlist ; dv; dv=dv->next) {
+		if (stat(dv->devname, &stb)) {
 			fprintf(stderr, Name ": cannot find %s: %s\n",
-				devnames[i], strerror(errno));
+				dv->devname, strerror(errno));
 			return 1;
 		}
 		if ((stb.st_mode & S_IFMT) != S_IFBLK) {
 			fprintf(stderr, Name ": %s is not a block device.\n",
-				devnames[i]);
+				dv->devname);
 			return 1;
 		}
-		switch(devmodes[i]){
+		switch(dv->disposition){
 		default:
-			fprintf(stderr, Name ": internal error - devmode[%d]=%d\n",
-				i, devmodes[i]);
+			fprintf(stderr, Name ": internal error - devmode[%s]=%d\n",
+				dv->devname, dv->disposition);
 			return 1;
 		case 'a':
 			/* add the device - hot or cold */
-			if (ioctl(fd, HOT_ADD_DISK, stb.st_rdev)==0) {
-				fprintf(stderr, Name ": hot added %s\n",
-					devnames[i]);
-				continue;
+			st = super_by_version(array.major_version,
+					      array.minor_version);
+			if (!st) {
+				fprintf(stderr, Name ": unsupport array - version %d.%d\n",
+					array.major_version, array.minor_version);
+				return 1;
+			}
+
+			/* Make sure it isn't in use (in 2.6 or later) */
+			tfd = open(dv->devname, O_RDONLY|O_EXCL);
+			if (tfd < 0) {
+				fprintf(stderr, Name ": Cannot open %s: %s\n",
+					dv->devname, strerror(errno));
+				return 1;
+			}
+			if (array.not_persistent==0)
+				st->ss->load_super(st, tfd, &osuper, NULL);
+			/* will use osuper later */
+			close(tfd);
+
+			if (array.major_version == 0 &&
+			    md_get_version(fd)%100 < 2) {
+				if (ioctl(fd, HOT_ADD_DISK,
+					  (unsigned long)stb.st_rdev)==0) {
+					if (verbose >= 0)
+						fprintf(stderr, Name ": hot added %s\n",
+							dv->devname);
+					continue;
+				}
+
+				fprintf(stderr, Name ": hot add failed for %s: %s\n",
+					dv->devname, strerror(errno));
+				return 1;
+			}
+
+			if (array.not_persistent == 0) {
+
+				/* need to find a sample superblock to copy, and
+				 * a spare slot to use 
+				 */
+				for (j=0; j<st->max_devs; j++) {
+					char *dev;
+					int dfd;
+					disc.number = j;
+					if (ioctl(fd, GET_DISK_INFO, &disc))
+						continue;
+					if (disc.major==0 && disc.minor==0)
+						continue;
+					if ((disc.state & 4)==0) continue; /* sync */
+					/* Looks like a good device to try */
+					dev = map_dev(disc.major, disc.minor, 1);
+					if (!dev) continue;
+					dfd = dev_open(dev, O_RDONLY);
+					if (dfd < 0) continue;
+					if (st->ss->load_super(st, dfd, &dsuper, NULL)) {
+						close(dfd);
+						continue;
+					}
+					close(dfd);
+					break;
+				}
+				if (!dsuper) {
+					fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n");
+					return 1;
+				}
+				/* Possibly this device was recently part of the array
+				 * and was temporarily removed, and is now being re-added.
+				 * If so, we can simply re-add it.
+				 */
+				st->ss->uuid_from_super(duuid, dsuper);
+			
+				if (osuper) {
+					st->ss->uuid_from_super(ouuid, osuper);
+					if (memcmp(duuid, ouuid, sizeof(ouuid))==0) {
+						/* look close enough for now.  Kernel
+						 * will worry about where a bitmap
+						 * based reconstruct is possible
+						 */
+						struct mdinfo mdi;
+						st->ss->getinfo_super(&mdi, osuper);
+						disc.major = major(stb.st_rdev);
+						disc.minor = minor(stb.st_rdev);
+						disc.number = mdi.disk.number;
+						disc.raid_disk = mdi.disk.raid_disk;
+						disc.state = mdi.disk.state;
+						if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) {
+							if (verbose >= 0)
+								fprintf(stderr, Name ": re-added %s\n", dv->devname);
+							continue;
+						}
+						/* fall back on normal-add */
+					}
+				}
 			}
-			/* try ADD_NEW_DISK.
-			 * we might be creating, we might be assembling,
-			 * it is hard to tell.
-			 * set up number/raid_disk/state just
-			 * in case
-			 */
-			for (j=0; j<array.nr_disks; j++) {
+			for (j=0; j< st->max_devs; j++) {
+				disc.number = j;
 				if (ioctl(fd, GET_DISK_INFO, &disc))
 					break;
 				if (disc.major==0 && disc.minor==0)
@@ -173,39 +302,78 @@ int Manage_subdevs(char *devname, int fd,
 				if (disc.state & 8) /* removed */
 					break;
 			}
+			disc.major = major(stb.st_rdev);
+			disc.minor = minor(stb.st_rdev);
 			disc.number =j;
-			disc.raid_disk = j;
 			disc.state = 0;
-			disc.major = MAJOR(stb.st_rdev);
-			disc.minor = MINOR(stb.st_rdev);
+			if (array.not_persistent==0) {
+				if (dv->writemostly)
+					disc.state |= 1 << MD_DISK_WRITEMOSTLY;
+				st->ss->add_to_super(dsuper, &disc);
+				if (st->ss->write_init_super(st, dsuper, &disc, dv->devname))
+					return 1;
+			} else if (dv->re_add) {
+				/*  this had better be raid1.
+				 * As we are "--re-add"ing we must find a spare slot
+				 * to fill.
+				 */
+				char *used = malloc(array.raid_disks);
+				memset(used, 0, array.raid_disks);
+				for (j=0; j< st->max_devs; j++) {
+					mdu_disk_info_t disc2;
+					disc2.number = j;
+					if (ioctl(fd, GET_DISK_INFO, &disc2))
+						continue;
+					if (disc2.major==0 && disc2.minor==0)
+						continue;
+					if (disc2.state & 8) /* removed */
+						continue;
+					if (disc2.raid_disk < 0)
+						continue;
+					if (disc2.raid_disk > array.raid_disks)
+						continue;
+					used[disc2.raid_disk] = 1;
+				}
+				for (j=0 ; j<array.raid_disks; j++)
+					if (!used[j]) {
+						disc.raid_disk = j;
+						disc.state |= (1<<MD_DISK_SYNC);
+						break;
+					}
+			}
+			if (dv->writemostly)
+				disc.state |= (1 << MD_DISK_WRITEMOSTLY);
 			if (ioctl(fd,ADD_NEW_DISK, &disc)) {
-				fprintf(stderr, Name ": add new disk failed for %s: %s\n",
-					devnames[i], strerror(errno));
+				fprintf(stderr, Name ": add new device failed for %s as %d: %s\n",
+					dv->devname, j, strerror(errno));
 				return 1;
 			}
-			fprintf(stderr, Name ": added %s\n", devnames[i]);
+			if (verbose >= 0)
+				fprintf(stderr, Name ": added %s\n", dv->devname);
 			break;
 
 		case 'r':
 			/* hot remove */
 			/* FIXME check that it is a current member */
-			if (ioctl(fd, HOT_REMOVE_DISK, stb.st_rdev)) {
+			if (ioctl(fd, HOT_REMOVE_DISK, (unsigned long)stb.st_rdev)) {
 				fprintf(stderr, Name ": hot remove failed for %s: %s\n",
-					devnames[i], strerror(errno));
+					dv->devname, strerror(errno));
 				return 1;
 			}
-			fprintf(stderr, Name ": hot removed %s\n", devnames[i]);
+			if (verbose >= 0)
+				fprintf(stderr, Name ": hot removed %s\n", dv->devname);
 			break;
 
 		case 'f': /* set faulty */
 			/* FIXME check current member */
-			if (ioctl(fd, SET_DISK_FAULTY, stb.st_rdev)) {
-				fprintf(stderr, Name ": set disk faulty failed for %s:  %s\n",
-					devnames[i], strerror(errno));
+			if (ioctl(fd, SET_DISK_FAULTY, (unsigned long) stb.st_rdev)) {
+				fprintf(stderr, Name ": set device faulty failed for %s:  %s\n",
+					dv->devname, strerror(errno));
 				return 1;
 			}
-			fprintf(stderr, Name ": set %s faulty in %s\n",
-				devnames[i], devname);
+			if (verbose >= 0)
+				fprintf(stderr, Name ": set %s faulty in %s\n",
+					dv->devname, devname);
 			break;
 		}
 	}