X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=misc%2Fdumpe2fs.c;h=a70cc4ec34666a7f295e3584529e6e22d6a98c1b;hb=c7cd908be59f48c66b4f3ac9a631ffe3dde4f1ab;hp=fc0c45b757eb8f52b3864bc0f4eac3134c5c8688;hpb=3839e65723771b85975f4263102dd3ceec4523c0;p=tools%2Fe2fsprogs.git

diff --git a/misc/dumpe2fs.c b/misc/dumpe2fs.c
index fc0c45b..a70cc4e 100644
--- a/misc/dumpe2fs.c
+++ b/misc/dumpe2fs.c
@@ -6,8 +6,12 @@
  *                                 Laboratoire MASI, Institut Blaise Pascal
  *                                 Universite Pierre et Marie Curie (Paris VI)
  *
- * This file can be redistributed under the terms of the GNU General
- * Public License
+ * Copyright 1995, 1996, 1997 by Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
  */
 
 /*
@@ -16,31 +20,57 @@
  * 94/02/27	- Ported to use the ext2fs library
  */
 
+#ifdef HAVE_GETOPT_H
 #include <getopt.h>
+#else
+extern char *optarg;
+extern int optind;
+#endif
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
-#include <linux/ext2_fs.h>
+#include "ext2fs/ext2_fs.h"
 
 #include "ext2fs/ext2fs.h"
 #include "e2p/e2p.h"
+#include "jfs_user.h"
+#include <uuid/uuid.h>
 
 #include "../version.h"
+#include "nls-enable.h"
 
-#define in_use(m, x)	(test_bit ((x), (m)))
+#define in_use(m, x)	(ext2fs_test_bit ((x), (m)))
 
 const char * program_name = "dumpe2fs";
 char * device_name = NULL;
+int hex_format = 0;
 
-static volatile void usage (void)
+static void usage(void)
 {
-	fprintf (stderr, "usage: %s device\n", program_name);
+	fprintf (stderr, _("Usage: %s [-bfhixV] [-o superblock=<num>] "
+		 "[-o blocksize=<num>] device\n"), program_name);
 	exit (1);
 }
 
+static void print_number(unsigned long num)
+{
+	if (hex_format)
+		printf("0x%04lx", num);
+	else
+		printf("%lu", num);
+}
+
+static void print_range(unsigned long a, unsigned long b)
+{
+	if (hex_format)
+		printf("0x%04lx-0x%04lx", a, b);
+	else
+		printf("%lu-%lu", a, b);
+}
+
 static void print_free (unsigned long group, char * bitmap,
 			unsigned long nbytes, unsigned long offset)
 {
@@ -48,115 +78,510 @@ static void print_free (unsigned long group, char * bitmap,
 	unsigned long i;
 	unsigned long j;
 
+	offset += group * nbytes;
 	for (i = 0; i < nbytes; i++)
 		if (!in_use (bitmap, i))
 		{
 			if (p)
 				printf (", ");
-			if (i == nbytes - 1 || in_use (bitmap, i + 1))
-				printf ("%lu", group * nbytes + i + offset);
-			else
-			{
-				for (j = i; j < nbytes && !in_use (bitmap, j);
-				     j++)
-					;
-				printf ("%lu-%lu", group * nbytes + i + offset,
-					group * nbytes + (j - 1) + offset);
-				i = j - 1;
+			print_number(i + offset);
+			for (j = i; j < nbytes && !in_use (bitmap, j); j++)
+				;
+			if (--j != i) {
+				fputc('-', stdout);
+				print_number(j + offset);
+				i = j;
 			}
 			p = 1;
 		}
 }
 
+static void print_bg_opt(int bg_flags, int mask,
+			  const char *str, int *first)
+{
+	if (bg_flags & mask) {
+		if (*first) {
+			fputs(" [", stdout);
+			*first = 0;
+		} else
+			fputs(", ", stdout);
+		fputs(str, stdout);
+	}
+}
+static void print_bg_opts(ext2_filsys fs, dgrp_t i)
+{
+	int first = 1, bg_flags = 0;
+
+	if (fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
+		bg_flags = fs->group_desc[i].bg_flags;
+
+	print_bg_opt(bg_flags, EXT2_BG_INODE_UNINIT, "INODE_UNINIT",
+ 		     &first);
+	print_bg_opt(bg_flags, EXT2_BG_BLOCK_UNINIT, "BLOCK_UNINIT",
+ 		     &first);
+	print_bg_opt(bg_flags, EXT2_BG_INODE_ZEROED, "ITABLE_ZEROED",
+ 		     &first);
+	if (!first)
+		fputc(']', stdout);
+	fputc('\n', stdout);
+}
+
 static void list_desc (ext2_filsys fs)
 {
 	unsigned long i;
-	char * block_bitmap = fs->block_map;
-	char * inode_bitmap = fs->inode_map;
-
-	printf ("\n");
-	for (i = 0; i < fs->group_desc_count; i++)
-	{
-		printf ("Group %lu:\n", i);
-		printf ("  Block bitmap at %lu, Inode bitmap at %lu, "
-			"Inode table at %lu\n",
-			fs->group_desc[i].bg_block_bitmap,
-			fs->group_desc[i].bg_inode_bitmap,
-			fs->group_desc[i].bg_inode_table);
-		printf ("  %d free blocks, %d free inodes, %d directories\n",
+	long diff;
+	blk_t	first_block, last_block;
+	blk_t	super_blk, old_desc_blk, new_desc_blk;
+	char *block_bitmap=NULL, *inode_bitmap=NULL;
+	int inode_blocks_per_group, old_desc_blocks, reserved_gdt;
+	int		block_nbytes, inode_nbytes;
+	int has_super;
+	blk_t		blk_itr = fs->super->s_first_data_block;
+	ext2_ino_t	ino_itr = 1;
+
+	block_nbytes = EXT2_BLOCKS_PER_GROUP(fs->super) / 8;
+	inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
+
+	if (fs->block_map)
+		block_bitmap = malloc(block_nbytes);
+	if (fs->inode_map)
+		inode_bitmap = malloc(inode_nbytes);
+
+	inode_blocks_per_group = ((fs->super->s_inodes_per_group *
+				   EXT2_INODE_SIZE(fs->super)) +
+				  EXT2_BLOCK_SIZE(fs->super) - 1) /
+				 EXT2_BLOCK_SIZE(fs->super);
+	reserved_gdt = fs->super->s_reserved_gdt_blocks;
+	fputc('\n', stdout);
+	first_block = fs->super->s_first_data_block;
+	if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
+		old_desc_blocks = fs->super->s_first_meta_bg;
+	else
+		old_desc_blocks = fs->desc_blocks;
+	for (i = 0; i < fs->group_desc_count; i++) {
+		first_block = ext2fs_group_first_block(fs, i);
+		last_block = ext2fs_group_last_block(fs, i);
+
+		ext2fs_super_and_bgd_loc(fs, i, &super_blk,
+					 &old_desc_blk, &new_desc_blk, 0);
+
+		printf (_("Group %lu: (Blocks "), i);
+		print_range(first_block, last_block);
+		fputs(")", stdout);
+		print_bg_opts(fs, i);
+		if (fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
+			printf(_("  Checksum 0x%04x, unused inodes %d\n"),
+			       fs->group_desc[i].bg_checksum,
+			       fs->group_desc[i].bg_itable_unused);
+		has_super = ((i==0) || super_blk);
+		if (has_super) {
+			printf (_("  %s superblock at "),
+				i == 0 ? _("Primary") : _("Backup"));
+			print_number(super_blk);
+		}
+		if (old_desc_blk) {
+			printf(_(", Group descriptors at "));
+			print_range(old_desc_blk,
+				    old_desc_blk + old_desc_blocks - 1);
+			if (reserved_gdt) {
+				printf(_("\n  Reserved GDT blocks at "));
+				print_range(old_desc_blk + old_desc_blocks,
+					    old_desc_blk + old_desc_blocks +
+					    reserved_gdt - 1);
+			}
+		} else if (new_desc_blk) {
+			fputc(has_super ? ',' : ' ', stdout);
+			printf(_(" Group descriptor at "));
+			print_number(new_desc_blk);
+			has_super++;
+		}
+		if (has_super)
+			fputc('\n', stdout);
+		fputs(_("  Block bitmap at "), stdout);
+		print_number(fs->group_desc[i].bg_block_bitmap);
+		diff = fs->group_desc[i].bg_block_bitmap - first_block;
+		if (diff >= 0)
+			printf(" (+%ld)", diff);
+		fputs(_(", Inode bitmap at "), stdout);
+		print_number(fs->group_desc[i].bg_inode_bitmap);
+		diff = fs->group_desc[i].bg_inode_bitmap - first_block;
+		if (diff >= 0)
+			printf(" (+%ld)", diff);
+		fputs(_("\n  Inode table at "), stdout);
+		print_range(fs->group_desc[i].bg_inode_table,
+			    fs->group_desc[i].bg_inode_table +
+			    inode_blocks_per_group - 1);
+		diff = fs->group_desc[i].bg_inode_table - first_block;
+		if (diff > 0)
+			printf(" (+%ld)", diff);
+		printf (_("\n  %u free blocks, %u free inodes, "
+			  "%u directories%s"),
 			fs->group_desc[i].bg_free_blocks_count,
 			fs->group_desc[i].bg_free_inodes_count,
-			fs->group_desc[i].bg_used_dirs_count);
-		printf ("  Free blocks: ");
-		print_free (i, block_bitmap, fs->super->s_blocks_per_group,
-			    fs->super->s_first_data_block);
-		block_bitmap += fs->super->s_blocks_per_group / 8;
-		printf ("\n");
-		printf ("  Free inodes: ");
-		print_free (i, inode_bitmap, fs->super->s_inodes_per_group, 1);
-		inode_bitmap += fs->super->s_inodes_per_group / 8;
-		printf ("\n");
+			fs->group_desc[i].bg_used_dirs_count,
+			fs->group_desc[i].bg_itable_unused ? "" : "\n");
+		if (fs->group_desc[i].bg_itable_unused)
+			printf (_(", %u unused inodes\n"),
+				fs->group_desc[i].bg_itable_unused);
+		if (block_bitmap) {
+			fputs(_("  Free blocks: "), stdout);
+			ext2fs_get_block_bitmap_range(fs->block_map,
+				 blk_itr, block_nbytes << 3, block_bitmap);
+			print_free (i, block_bitmap,
+				    fs->super->s_blocks_per_group,
+				    fs->super->s_first_data_block);
+			fputc('\n', stdout);
+			blk_itr += fs->super->s_blocks_per_group;
+		}
+		if (inode_bitmap) {
+			fputs(_("  Free inodes: "), stdout);
+			ext2fs_get_inode_bitmap_range(fs->inode_map,
+				 ino_itr, inode_nbytes << 3, inode_bitmap);
+			print_free (i, inode_bitmap,
+				    fs->super->s_inodes_per_group, 1);
+			fputc('\n', stdout);
+			ino_itr += fs->super->s_inodes_per_group;
+		}
 	}
+	if (block_bitmap)
+		free(block_bitmap);
+	if (inode_bitmap)
+		free(inode_bitmap);
 }
 
-static void list_bad_blocks(ext2_filsys fs)
+static void list_bad_blocks(ext2_filsys fs, int dump)
 {
 	badblocks_list		bb_list = 0;
 	badblocks_iterate	bb_iter;
 	blk_t			blk;
 	errcode_t		retval;
+	const char		*header, *fmt;
 
 	retval = ext2fs_read_bb_inode(fs, &bb_list);
 	if (retval) {
-		com_err("ext2fs_read_bb_inode", retval, "");
+		com_err("ext2fs_read_bb_inode", retval, 0);
+		return;
+	}
+	retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
+	if (retval) {
+		com_err("ext2fs_badblocks_list_iterate_begin", retval,
+			_("while printing bad block list"));
+		return;
+	}
+	if (dump) {
+		header = fmt = "%u\n";
+	} else {
+		header =  _("Bad blocks: %u");
+		fmt = ", %u";
+	}
+	while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) {
+		printf(header ? header : fmt, blk);
+		header = 0;
+	}
+	ext2fs_badblocks_list_iterate_end(bb_iter);
+	if (!dump)
+		fputc('\n', stdout);
+	ext2fs_badblocks_list_free(bb_list);
+}
+
+static void print_inline_journal_information(ext2_filsys fs)
+{
+	journal_superblock_t	*jsb;
+	struct ext2_inode	inode;
+	ext2_file_t		journal_file;
+	errcode_t		retval;
+	ino_t			ino = fs->super->s_journal_inum;
+	char			buf[1024];
+	__u32			*mask_ptr, mask, m;
+	int			i, j, size, printed = 0;
+
+	retval = ext2fs_read_inode(fs, ino,  &inode);
+	if (retval) {
+		com_err(program_name, retval,
+			_("while reading journal inode"));
+		exit(1);
+	}
+	retval = ext2fs_file_open2(fs, ino, &inode, 0, &journal_file);
+	if (retval) {
+		com_err(program_name, retval,
+			_("while opening journal inode"));
 		exit(1);
 	}
-	retval = badblocks_list_iterate_begin(bb_list, &bb_iter);
+	retval = ext2fs_file_read(journal_file, buf, sizeof(buf), 0);
 	if (retval) {
-		com_err("badblocks_list_iterate_begin", retval,
-			"while printing bad block list");
+		com_err(program_name, retval,
+			_("while reading journal super block"));
 		exit(1);
 	}
-	if (badblocks_list_iterate(bb_iter, &blk))
-		printf("Bad blocks: %ld", blk);
-	while (badblocks_list_iterate(bb_iter, &blk))
-		printf(", %ld", blk);
-	badblocks_list_iterate_end(bb_iter);
+	ext2fs_file_close(journal_file);
+	jsb = (journal_superblock_t *) buf;
+	if (be32_to_cpu(jsb->s_header.h_magic) != JFS_MAGIC_NUMBER) {
+		fprintf(stderr,
+			"Journal superblock magic number invalid!\n");
+		exit(1);
+	}
+	printf(_("Journal features:        "));
+	for (i=0, mask_ptr=&jsb->s_feature_compat; i <3; i++,mask_ptr++) {
+		mask = be32_to_cpu(*mask_ptr);
+		for (j=0,m=1; j < 32; j++, m<<=1) {
+			if (mask & m) {
+				printf(" %s", e2p_jrnl_feature2string(i, m));
+				printed++;
+			}
+		}
+	}
+	if (printed == 0)
+		printf(" (none)");
 	printf("\n");
+	fputs(_("Journal size:             "), stdout);
+	if ((fs->super->s_feature_ro_compat &
+	     EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
+	    (inode.i_flags & EXT4_HUGE_FILE_FL))
+		size = inode.i_blocks / (fs->blocksize / 1024);
+	else
+		size = inode.i_blocks >> 1;
+	if (size < 8192)
+		printf("%uk\n", size);
+	else
+		printf("%uM\n", size >> 10);
+	printf(_("Journal length:           %u\n"
+		 "Journal sequence:         0x%08x\n"
+		 "Journal start:            %u\n"),
+	       (unsigned int)ntohl(jsb->s_maxlen),
+	       (unsigned int)ntohl(jsb->s_sequence),
+	       (unsigned int)ntohl(jsb->s_start));
 }
 
-void main (int argc, char ** argv)
+static void print_journal_information(ext2_filsys fs)
+{
+	errcode_t	retval;
+	char		buf[1024];
+	char		str[80];
+	unsigned int	i;
+	journal_superblock_t	*jsb;
+
+	/* Get the journal superblock */
+	if ((retval = io_channel_read_blk(fs->io, fs->super->s_first_data_block+1, -1024, buf))) {
+		com_err(program_name, retval,
+			_("while reading journal superblock"));
+		exit(1);
+	}
+	jsb = (journal_superblock_t *) buf;
+	if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) ||
+	    (jsb->s_header.h_blocktype !=
+	     (unsigned) ntohl(JFS_SUPERBLOCK_V2))) {
+		com_err(program_name, 0,
+			_("Couldn't find journal superblock magic numbers"));
+		exit(1);
+	}
+
+	printf(_("\nJournal block size:       %u\n"
+		 "Journal length:           %u\n"
+		 "Journal first block:      %u\n"
+		 "Journal sequence:         0x%08x\n"
+		 "Journal start:            %u\n"
+		 "Journal number of users:  %u\n"),
+	       (unsigned int)ntohl(jsb->s_blocksize),  (unsigned int)ntohl(jsb->s_maxlen),
+	       (unsigned int)ntohl(jsb->s_first), (unsigned int)ntohl(jsb->s_sequence),
+	       (unsigned int)ntohl(jsb->s_start), (unsigned int)ntohl(jsb->s_nr_users));
+
+	for (i=0; i < ntohl(jsb->s_nr_users); i++) {
+		uuid_unparse(&jsb->s_users[i*16], str);
+		printf(i ? "                          %s\n"
+		       : _("Journal users:            %s\n"),
+		       str);
+	}
+}
+
+static void parse_extended_opts(const char *opts, blk_t *superblock,
+				int *blocksize)
+{
+	char	*buf, *token, *next, *p, *arg, *badopt = 0;
+	int	len;
+	int	do_usage = 0;
+
+	len = strlen(opts);
+	buf = malloc(len+1);
+	if (!buf) {
+		fprintf(stderr,
+			_("Couldn't allocate memory to parse options!\n"));
+		exit(1);
+	}
+	strcpy(buf, opts);
+	for (token = buf; token && *token; token = next) {
+		p = strchr(token, ',');
+		next = 0;
+		if (p) {
+			*p = 0;
+			next = p+1;
+		}
+		arg = strchr(token, '=');
+		if (arg) {
+			*arg = 0;
+			arg++;
+		}
+		if (strcmp(token, "superblock") == 0 ||
+		    strcmp(token, "sb") == 0) {
+			if (!arg) {
+				do_usage++;
+				badopt = token;
+				continue;
+			}
+			*superblock = strtoul(arg, &p, 0);
+			if (*p) {
+				fprintf(stderr,
+					_("Invalid superblock parameter: %s\n"),
+					arg);
+				do_usage++;
+				continue;
+			}
+		} else if (strcmp(token, "blocksize") == 0 ||
+			   strcmp(token, "bs") == 0) {
+			if (!arg) {
+				do_usage++;
+				badopt = token;
+				continue;
+			}
+			*blocksize = strtoul(arg, &p, 0);
+			if (*p) {
+				fprintf(stderr,
+					_("Invalid blocksize parameter: %s\n"),
+					arg);
+				do_usage++;
+				continue;
+			}
+		} else {
+			do_usage++;
+			badopt = token;
+		}
+	}
+	if (do_usage) {
+		fprintf(stderr, _("\nBad extended option(s) specified: %s\n\n"
+			"Extended options are separated by commas, "
+			"and may take an argument which\n"
+			"\tis set off by an equals ('=') sign.\n\n"
+			"Valid extended options are:\n"
+			"\tsuperblock=<superblock number>\n"
+			"\tblocksize=<blocksize>\n"),
+			badopt ? badopt : "");
+		free(buf);
+		exit(1);
+	}
+	free(buf);
+}
+
+int main (int argc, char ** argv)
 {
 	errcode_t	retval;
 	ext2_filsys	fs;
+	int		print_badblocks = 0;
+	blk_t		use_superblock = 0;
+	int		use_blocksize = 0;
+	int		image_dump = 0;
+	int		force = 0;
+	int		flags;
+	int		header_only = 0;
+	int		c;
 
-	fprintf (stderr, "dumpe2fs %s, %s for EXT2 FS %s, %s\n",
-		 E2FSPROGS_VERSION, E2FSPROGS_DATE,
-		 EXT2FS_VERSION, EXT2FS_DATE);
+#ifdef ENABLE_NLS
+	setlocale(LC_MESSAGES, "");
+	setlocale(LC_CTYPE, "");
+	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+	textdomain(NLS_CAT_NAME);
+#endif
+	add_error_table(&et_ext2_error_table);
+	fprintf (stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION,
+		 E2FSPROGS_DATE);
 	if (argc && *argv)
 		program_name = *argv;
-	if (argc != 2)
-		usage ();
-	device_name = argv[1];
-	retval = ext2fs_open (device_name, 0, 0, 0, unix_io_manager, &fs);
-	if (retval)
-	{
-		com_err (program_name, retval, "while trying to open %s",
-			 device_name);
-		printf ("Couldn't find valid filesystem superblock.\n");
-		exit (1);
+
+	while ((c = getopt (argc, argv, "bfhixVo:")) != EOF) {
+		switch (c) {
+		case 'b':
+			print_badblocks++;
+			break;
+		case 'f':
+			force++;
+			break;
+		case 'h':
+			header_only++;
+			break;
+		case 'i':
+			image_dump++;
+			break;
+		case 'o':
+			parse_extended_opts(optarg, &use_superblock,
+					    &use_blocksize);
+			break;
+		case 'V':
+			/* Print version number and exit */
+			fprintf(stderr, _("\tUsing %s\n"),
+				error_message(EXT2_ET_BASE));
+			exit(0);
+		case 'x':
+			hex_format++;
+			break;
+		default:
+			usage();
+		}
 	}
-	retval = ext2fs_read_bitmaps (fs);
-	if (retval)
-	{
-		com_err (program_name, retval, "while trying to read the bitmaps",
+	if (optind > argc - 1)
+		usage();
+	device_name = argv[optind++];
+	flags = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES;
+	if (force)
+		flags |= EXT2_FLAG_FORCE;
+	if (image_dump)
+		flags |= EXT2_FLAG_IMAGE_FILE;
+
+	if (use_superblock && !use_blocksize) {
+		for (use_blocksize = EXT2_MIN_BLOCK_SIZE;
+		     use_blocksize <= EXT2_MAX_BLOCK_SIZE;
+		     use_blocksize *= 2) {
+			retval = ext2fs_open (device_name, flags,
+					      use_superblock,
+					      use_blocksize, unix_io_manager,
+					      &fs);
+			if (!retval)
+				break;
+		}
+	} else
+		retval = ext2fs_open (device_name, flags, use_superblock,
+				      use_blocksize, unix_io_manager, &fs);
+	if (retval) {
+		com_err (program_name, retval, _("while trying to open %s"),
 			 device_name);
-		ext2fs_close (fs);
+		printf (_("Couldn't find valid filesystem superblock.\n"));
 		exit (1);
 	}
-	list_super (fs->super);
-	list_bad_blocks (fs);
-	list_desc (fs);
+	if (print_badblocks) {
+		list_bad_blocks(fs, 1);
+	} else {
+		list_super (fs->super);
+		if (fs->super->s_feature_incompat &
+		      EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
+			print_journal_information(fs);
+			ext2fs_close(fs);
+			exit(0);
+		}
+		if ((fs->super->s_feature_compat &
+		     EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
+		    (fs->super->s_journal_inum != 0))
+			print_inline_journal_information(fs);
+		list_bad_blocks(fs, 0);
+		if (header_only) {
+			ext2fs_close (fs);
+			exit (0);
+		}
+		retval = ext2fs_read_bitmaps (fs);
+		list_desc (fs);
+		if (retval) {
+			printf(_("\n%s: %s: error reading bitmaps: %s\n"),
+			       program_name, device_name,
+			       error_message(retval));
+		}
+	}
 	ext2fs_close (fs);
+	remove_error_table(&et_ext2_error_table);
 	exit (0);
 }