mirror of https://github.com/vitalif/e2fsprogs
debugfs: add the ability to manipulate the extent tree directly
This commit adds the functionality which had previously only been in the tst_extents command to debugfs. The debugfs command extent_open will open extent tree of a particular inode, and enables a series of commands which will allow the user to interact with the extent tree directly. Once the extent tree is closed via extent_open(), these additional commands will be disabled again. This commit exports two new functions from lib/ext2fs/extent.c which had previously been statically defined: ext2fs_extent_node_split() and ext2fs_extent_goto2(). Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>debian-1.42.9
Theodore Ts'o
parent
b4944f654c
commit
bee7b67ce9
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@ -18,16 +18,16 @@ MK_CMDS= _SS_DIR_OVERRIDE=../lib/ss ../lib/ss/mk_cmds
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DEBUG_OBJS= debug_cmds.o debugfs.o util.o ncheck.o icheck.o ls.o \
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lsdel.o dump.o set_fields.o logdump.o htree.o unused.o e2freefrag.o \
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filefrag.o
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filefrag.o extent_cmds.o extent_inode.o
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RO_DEBUG_OBJS= ro_debug_cmds.o ro_debugfs.o util.o ncheck.o icheck.o ls.o \
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lsdel.o logdump.o htree.o e2freefrag.o filefrag.o
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lsdel.o logdump.o htree.o e2freefrag.o filefrag.o extent_inode.o
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SRCS= debug_cmds.c $(srcdir)/debugfs.c $(srcdir)/util.c $(srcdir)/ls.c \
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$(srcdir)/ncheck.c $(srcdir)/icheck.c $(srcdir)/lsdel.c \
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$(srcdir)/dump.c $(srcdir)/set_fields.c ${srcdir}/logdump.c \
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$(srcdir)/htree.c $(srcdir)/unused.c ${srcdir}/../misc/e2freefrag.c \
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$(srcdir)/filefrag.c
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$(srcdir)/filefrag.c $(srcdir)/extent_inode.c
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LIBS= $(LIBEXT2FS) $(LIBE2P) $(LIBSS) $(LIBCOM_ERR) $(LIBBLKID) \
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$(LIBUUID)
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@ -52,6 +52,10 @@ debug_cmds.c debug_cmds.h: debug_cmds.ct
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$(E) " MK_CMDS $@"
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$(Q) $(MK_CMDS) $(srcdir)/debug_cmds.ct
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extent_cmds.c extent_cmds.h: extent_cmds.ct
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$(E) " MK_CMDS $@"
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$(Q) $(MK_CMDS) $(srcdir)/extent_cmds.ct
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ro_debug_cmds.c ro_debug_cmds.h: ro_debug_cmds.ct
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$(E) " MK_CMDS $@"
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$(Q) $(MK_CMDS) $(srcdir)/ro_debug_cmds.ct
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@ -102,7 +106,7 @@ uninstall:
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clean:
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$(RM) -f $(PROGS) debugfs.8 \#* *.s *.o *.a *~ debug_cmds.c \
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ro_debug_cmds.c core rdebugfs
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extent_cmds.c ro_debug_cmds.c core rdebugfs
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mostlyclean: clean
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distclean: clean
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@ -178,5 +178,8 @@ request do_dump_mmp, "Dump MMP information",
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request do_set_mmp_value, "Set MMP value",
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set_mmp_value, smmp;
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request do_extent_open, "Open inode for extent manipulation",
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extent_open, eo;
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end;
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@ -28,8 +28,6 @@ extern char *optarg;
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "et/com_err.h"
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#include "ss/ss.h"
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#include "debugfs.h"
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#include "uuid/uuid.h"
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#include "e2p/e2p.h"
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@ -39,9 +37,9 @@ extern char *optarg;
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#include "../version.h"
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#include "jfs_user.h"
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extern ss_request_table debug_cmds;
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ss_request_table *extra_cmds;
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const char *debug_prog_name;
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int sci_idx;
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ext2_filsys current_fs = NULL;
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ext2_ino_t root, cwd;
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@ -2284,7 +2282,6 @@ static int source_file(const char *cmd_file, int sci_idx)
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int main(int argc, char **argv)
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{
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int retval;
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int sci_idx;
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const char *usage =
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"Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
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"[-R request] [-V] ["
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@ -2,6 +2,7 @@
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* debugfs.h --- header file for the debugfs program
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*/
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#include "ss/ss.h"
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#include "ext2fs/ext2_fs.h"
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#include "ext2fs/ext2fs.h"
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@ -21,6 +22,8 @@
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extern ext2_filsys current_fs;
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extern ext2_ino_t root, cwd;
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extern int sci_idx;
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extern ss_request_table debug_cmds, extent_cmds;
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extern void reset_getopt(void);
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extern FILE *open_pager(void);
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@ -4,9 +4,6 @@
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#
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command_table extent_cmds;
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request do_inode, "Open an inode",
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inode;
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request do_current_node, "Current extent node",
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current_node, current;
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@ -73,5 +70,8 @@ request do_goto_block, "Goto extent containing specified block",
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request do_info, "Print extent info",
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info;
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request do_extent_close, "Close extent handle",
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extent_close, ec;
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end;
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@ -0,0 +1,547 @@
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/*
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* extent_inode.c --- direct extent tree manipulation
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*
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* Copyright (C) 2012 Theodore Ts'o. This file may be redistributed
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* under the terms of the GNU Public License.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <time.h>
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#else
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extern int optind;
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extern char *optarg;
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#endif
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#include "debugfs.h"
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ext2_ino_t current_ino;
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ext2_extent_handle_t current_handle;
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static void dbg_print_extent(char *desc, struct ext2fs_extent *extent)
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{
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if (desc)
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printf("%s: ", desc);
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printf("extent: lblk %llu--%llu, len %u, pblk %llu, flags: ",
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extent->e_lblk, extent->e_lblk + extent->e_len - 1,
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extent->e_len, extent->e_pblk);
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if (extent->e_flags & EXT2_EXTENT_FLAGS_LEAF)
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fputs("LEAF ", stdout);
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if (extent->e_flags & EXT2_EXTENT_FLAGS_UNINIT)
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fputs("UNINIT ", stdout);
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if (extent->e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
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fputs("2ND_VISIT ", stdout);
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if (!extent->e_flags)
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fputs("(none)", stdout);
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fputc('\n', stdout);
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}
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int common_extent_args_process(int argc, char *argv[], int min_argc,
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int max_argc, const char *cmd,
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const char *usage, int flags)
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{
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if (common_args_process(argc, argv, min_argc, max_argc, cmd,
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usage, flags))
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return 1;
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if (!current_handle) {
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com_err(cmd, 0, "Extent handle not open");
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return 1;
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}
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return 0;
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}
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static char *orig_prompt, *extent_prompt;
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void do_extent_open(int argc, char *argv[])
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{
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struct ext3_extent_header *eh;
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ext2_ino_t inode;
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int i, ret;
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errcode_t retval;
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char *cp;
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if (check_fs_open(argv[0]))
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return;
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if (argc == 1) {
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if (current_ino)
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printf("Current inode is %d\n", current_ino);
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else
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printf("No current inode\n");
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return;
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}
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if (common_inode_args_process(argc, argv, &inode, 0))
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return;
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current_ino = 0;
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retval = ext2fs_extent_open(current_fs, inode, ¤t_handle);
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if (retval) {
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com_err(argv[1], retval, "while opening extent handle");
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return;
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}
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current_ino = inode;
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orig_prompt = ss_get_prompt(sci_idx);
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extent_prompt = malloc(strlen(orig_prompt) + 32);
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strcpy(extent_prompt, orig_prompt);
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cp = strchr(extent_prompt, ':');
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if (cp)
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*cp = 0;
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sprintf(extent_prompt + strlen(extent_prompt), " (extent ino %d): ",
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current_ino);
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ss_add_request_table(sci_idx, &extent_cmds, 1, &ret);
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ss_set_prompt(sci_idx, extent_prompt);
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return;
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}
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void do_extent_close(int argc, char *argv[])
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{
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int ret;
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if (check_fs_open(argv[0]))
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return;
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if (!current_handle) {
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com_err(argv[0], 0, "Extent handle not open");
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return;
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}
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ext2fs_extent_free(current_handle);
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current_handle = NULL;
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current_ino = 0;
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ss_delete_request_table(sci_idx, &extent_cmds, &ret);
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ss_set_prompt(sci_idx, orig_prompt);
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free(extent_prompt);
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extent_prompt = NULL;
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}
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void generic_goto_node(char *cmd_name, int op)
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{
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struct ext2fs_extent extent;
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errcode_t retval;
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if (check_fs_open(cmd_name))
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return;
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if (!current_handle) {
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com_err(cmd_name, 0, "Extent handle not open");
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return;
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}
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retval = ext2fs_extent_get(current_handle, op, &extent);
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if (retval) {
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com_err(cmd_name, retval, 0);
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return;
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}
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dbg_print_extent(0, &extent);
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}
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void do_current_node(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_CURRENT);
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}
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void do_root_node(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_ROOT);
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}
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void do_last_leaf(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_LAST_LEAF);
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}
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void do_first_sib(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_FIRST_SIB);
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}
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void do_last_sib(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_LAST_SIB);
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}
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void do_next_sib(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_NEXT_SIB);
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}
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void do_prev_sib(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_PREV_SIB);
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}
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void do_next_leaf(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_NEXT_LEAF);
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}
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void do_prev_leaf(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_PREV_LEAF);
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}
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void do_next(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_NEXT);
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}
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void do_prev(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_PREV);
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}
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void do_up(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_UP);
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}
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void do_down(int argc, char *argv[])
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{
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generic_goto_node(argv[0], EXT2_EXTENT_DOWN);
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}
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void do_delete_node(int argc, char *argv[])
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{
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struct ext2fs_extent extent;
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errcode_t retval;
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int err;
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if (common_extent_args_process(argc, argv, 1, 1, "delete_node",
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"", CHECK_FS_RW | CHECK_FS_BITMAPS))
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return;
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retval = ext2fs_extent_delete(current_handle, 0);
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if (retval) {
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com_err(argv[0], retval, 0);
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return;
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}
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retval = ext2fs_extent_get(current_handle, EXT2_EXTENT_CURRENT,
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&extent);
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if (retval)
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return;
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dbg_print_extent(0, &extent);
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}
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void do_replace_node(int argc, char *argv[])
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{
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const char *usage = "[--uninit] <lblk> <len> <pblk>";
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errcode_t retval;
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struct ext2fs_extent extent;
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int err;
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if (common_extent_args_process(argc, argv, 3, 5, "replace_node",
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usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
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return;
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extent.e_flags = 0;
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if (!strcmp(argv[1], "--uninit")) {
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argc--;
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argv++;
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extent.e_flags |= EXT2_EXTENT_FLAGS_UNINIT;
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}
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if (argc != 4) {
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fprintf(stderr, "Usage: %s %s\n", argv[0], usage);
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return;
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}
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extent.e_lblk = parse_ulong(argv[1], argv[0], "logical block", &err);
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if (err)
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return;
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extent.e_len = parse_ulong(argv[2], argv[0], "logical block", &err);
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if (err)
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return;
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extent.e_pblk = parse_ulong(argv[3], argv[0], "logical block", &err);
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if (err)
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return;
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retval = ext2fs_extent_replace(current_handle, 0, &extent);
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if (retval) {
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com_err(argv[0], retval, 0);
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return;
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}
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do_current_node(argc, argv);
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}
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void do_split_node(int argc, char *argv[])
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{
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errcode_t retval;
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struct ext2fs_extent extent;
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int err;
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if (common_extent_args_process(argc, argv, 1, 1, "split_node",
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"", CHECK_FS_RW | CHECK_FS_BITMAPS))
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return;
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retval = ext2fs_extent_node_split(current_handle);
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if (retval) {
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com_err(argv[0], retval, 0);
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return;
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}
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do_current_node(argc, argv);
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}
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void do_insert_node(int argc, char *argv[])
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{
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const char *usage = "[--after] [--uninit] <lblk> <len> <pblk>";
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errcode_t retval;
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struct ext2fs_extent extent;
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char *cmd;
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int err;
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int flags = 0;
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if (common_extent_args_process(argc, argv, 3, 6, "insert_node",
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usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
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return;
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cmd = argv[0];
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extent.e_flags = 0;
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while (argc > 2) {
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if (!strcmp(argv[1], "--after")) {
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argc--;
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argv++;
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flags |= EXT2_EXTENT_INSERT_AFTER;
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continue;
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}
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if (!strcmp(argv[1], "--uninit")) {
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argc--;
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argv++;
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extent.e_flags |= EXT2_EXTENT_FLAGS_UNINIT;
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continue;
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}
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break;
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}
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if (argc != 4) {
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fprintf(stderr, "usage: %s %s\n", cmd, usage);
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return;
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}
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extent.e_lblk = parse_ulong(argv[1], cmd,
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"logical block", &err);
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if (err)
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return;
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extent.e_len = parse_ulong(argv[2], cmd,
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"length", &err);
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if (err)
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return;
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extent.e_pblk = parse_ulong(argv[3], cmd,
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"pysical block", &err);
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if (err)
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return;
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||||
|
||||
retval = ext2fs_extent_insert(current_handle, flags, &extent);
|
||||
if (retval) {
|
||||
com_err(cmd, retval, 0);
|
||||
return;
|
||||
}
|
||||
do_current_node(argc, argv);
|
||||
}
|
||||
|
||||
void do_set_bmap(int argc, char **argv)
|
||||
{
|
||||
const char *usage = "[--uninit] <lblk> <pblk>";
|
||||
struct ext2fs_extent extent;
|
||||
errcode_t retval;
|
||||
blk_t logical;
|
||||
blk_t physical;
|
||||
char *cmd = argv[0];
|
||||
int flags = 0;
|
||||
int err;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 3, 5, "set_bmap",
|
||||
usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
|
||||
return;
|
||||
|
||||
if (argc > 2 && !strcmp(argv[1], "--uninit")) {
|
||||
argc--;
|
||||
argv++;
|
||||
flags |= EXT2_EXTENT_SET_BMAP_UNINIT;
|
||||
}
|
||||
|
||||
if (argc != 3) {
|
||||
fprintf(stderr, "Usage: %s %s\n", cmd, usage);
|
||||
return;
|
||||
}
|
||||
|
||||
logical = parse_ulong(argv[1], cmd,
|
||||
"logical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
physical = parse_ulong(argv[2], cmd,
|
||||
"physical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_set_bmap(current_handle, logical,
|
||||
(blk64_t) physical, flags);
|
||||
if (retval) {
|
||||
com_err(cmd, retval, 0);
|
||||
return;
|
||||
}
|
||||
|
||||
retval = ext2fs_extent_get(current_handle, EXT2_EXTENT_CURRENT,
|
||||
&extent);
|
||||
if (retval)
|
||||
return;
|
||||
dbg_print_extent(0, &extent);
|
||||
}
|
||||
|
||||
void do_print_all(int argc, char **argv)
|
||||
{
|
||||
const char *usage = "[--leaf-only|--reverse|--reverse-leaf]";
|
||||
struct ext2fs_extent extent;
|
||||
errcode_t retval;
|
||||
errcode_t end_err = EXT2_ET_EXTENT_NO_NEXT;
|
||||
int op = EXT2_EXTENT_NEXT;
|
||||
int first_op = EXT2_EXTENT_ROOT;
|
||||
|
||||
|
||||
if (common_extent_args_process(argc, argv, 1, 2, "print_all",
|
||||
usage, 0))
|
||||
return;
|
||||
|
||||
if (argc == 2) {
|
||||
if (!strcmp(argv[1], "--leaf-only"))
|
||||
op = EXT2_EXTENT_NEXT_LEAF;
|
||||
else if (!strcmp(argv[1], "--reverse")) {
|
||||
op = EXT2_EXTENT_PREV;
|
||||
first_op = EXT2_EXTENT_LAST_LEAF;
|
||||
end_err = EXT2_ET_EXTENT_NO_PREV;
|
||||
} else if (!strcmp(argv[1], "--reverse-leaf")) {
|
||||
op = EXT2_EXTENT_PREV_LEAF;
|
||||
first_op = EXT2_EXTENT_LAST_LEAF;
|
||||
end_err = EXT2_ET_EXTENT_NO_PREV;
|
||||
} else {
|
||||
fprintf(stderr, "Usage: %s %s\n", argv[0], usage);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
retval = ext2fs_extent_get(current_handle, first_op, &extent);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
dbg_print_extent(0, &extent);
|
||||
|
||||
while (1) {
|
||||
retval = ext2fs_extent_get(current_handle, op, &extent);
|
||||
if (retval == end_err)
|
||||
break;
|
||||
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
dbg_print_extent(0, &extent);
|
||||
}
|
||||
}
|
||||
|
||||
void do_fix_parents(int argc, char **argv)
|
||||
{
|
||||
struct ext2fs_extent extent;
|
||||
struct ext2_extent_info info;
|
||||
errcode_t retval;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 1, 1, "fix_parents", "",
|
||||
CHECK_FS_RW))
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_fix_parents(current_handle);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void do_info(int argc, char **argv)
|
||||
{
|
||||
struct ext2fs_extent extent;
|
||||
struct ext2_extent_info info;
|
||||
errcode_t retval;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 1, 1, "info", "", 0))
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_get_info(current_handle, &info);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
|
||||
retval = ext2fs_extent_get(current_handle,
|
||||
EXT2_EXTENT_CURRENT, &extent);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
|
||||
dbg_print_extent(0, &extent);
|
||||
|
||||
printf("Current handle location: %d/%d (max: %d, bytes %d), level %d/%d\n",
|
||||
info.curr_entry, info.num_entries, info.max_entries,
|
||||
info.bytes_avail, info.curr_level, info.max_depth);
|
||||
printf("\tmax lblk: %llu, max pblk: %llu\n", info.max_lblk,
|
||||
info.max_pblk);
|
||||
printf("\tmax_len: %u, max_uninit_len: %u\n", info.max_len,
|
||||
info.max_uninit_len);
|
||||
}
|
||||
|
||||
void do_goto_block(int argc, char **argv)
|
||||
{
|
||||
struct ext2fs_extent extent;
|
||||
errcode_t retval;
|
||||
int op = EXT2_EXTENT_NEXT_LEAF;
|
||||
blk64_t blk;
|
||||
int level = 0, err;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 2, 3, "goto_block",
|
||||
"block [level]", 0))
|
||||
return;
|
||||
|
||||
if (strtoblk(argv[0], argv[1], &blk))
|
||||
return;
|
||||
|
||||
if (argc == 3) {
|
||||
level = parse_ulong(argv[2], argv[0], "level", &err);
|
||||
if (err)
|
||||
return;
|
||||
}
|
||||
|
||||
retval = ext2fs_extent_goto2(current_handle, level, (blk64_t) blk);
|
||||
|
||||
if (retval) {
|
||||
com_err(argv[0], retval,
|
||||
"while trying to go to block %llu, level %d",
|
||||
(unsigned long long) blk, level);
|
||||
return;
|
||||
}
|
||||
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_CURRENT);
|
||||
}
|
||||
|
|
@ -87,5 +87,8 @@ request do_supported_features, "Print features supported by this version of e2fs
|
|||
request do_dump_mmp, "Dump MMP information",
|
||||
dump_mmp;
|
||||
|
||||
request do_extent_open, "Open inode for extent manipulation",
|
||||
extent_open, eo;
|
||||
|
||||
end;
|
||||
|
||||
|
|
|
|||
|
|
@ -292,17 +292,25 @@ extent_dbg.c: $(srcdir)/extent_dbg.ct
|
|||
$(Q) $(MK_CMDS) $(srcdir)/extent_dbg.ct
|
||||
|
||||
debug_cmds.c debug_cmds.h: $(top_srcdir)/debugfs/debug_cmds.ct
|
||||
$(E) " MK_CMDS $<@"
|
||||
$(E) " MK_CMDS $<"
|
||||
$(Q) $(MK_CMDS) $(top_srcdir)/debugfs/debug_cmds.ct
|
||||
|
||||
extent_cmds.c extent_cmds.h: $(top_srcdir)/debugfs/extent_cmds.ct
|
||||
$(E) " MK_CMDS $<"
|
||||
$(Q) $(MK_CMDS) $(top_srcdir)/debugfs/extent_cmds.ct
|
||||
|
||||
DEBUG_OBJS= debug_cmds.o debugfs.o util.o ncheck.o icheck.o ls.o \
|
||||
lsdel.o dump.o set_fields.o logdump.o htree.o unused.o \
|
||||
e2freefrag.o filefrag.o
|
||||
e2freefrag.o filefrag.o extent_inode.o extent_cmds.o
|
||||
|
||||
debugfs.o: $(top_srcdir)/debugfs/debugfs.c
|
||||
$(E) " CC $<"
|
||||
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
|
||||
|
||||
extent_inode.o: $(top_srcdir)/debugfs/extent_inode.c
|
||||
$(E) " CC $<"
|
||||
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
|
||||
|
||||
util.o: $(top_srcdir)/debugfs/util.c
|
||||
$(E) " CC $<"
|
||||
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
|
||||
|
|
@ -361,10 +369,10 @@ tst_bitmaps: tst_bitmaps.o tst_bitmaps_cmd.o $(STATIC_LIBEXT2FS) $(DEPLIBSS) \
|
|||
$(Q) $(CC) -o $@ tst_bitmaps.o tst_bitmaps_cmd.o $(ALL_CFLAGS) \
|
||||
$(STATIC_LIBEXT2FS) $(LIBSS) $(STATIC_LIBCOM_ERR)
|
||||
|
||||
tst_extents: $(srcdir)/extent.c extent_dbg.c $(DEBUG_OBJS) $(DEPLIBSS) \
|
||||
tst_extents: $(srcdir)/extent.c $(DEBUG_OBJS) $(DEPLIBSS) \
|
||||
$(LIBE2P) $(DEPLIBUUID) $(DEPLIBBLKID) $(DEPSTATIC_LIBCOM_ERR)
|
||||
$(E) " LD $@"
|
||||
$(Q) $(CC) -o tst_extents $(srcdir)/extent.c extent_dbg.c \
|
||||
$(Q) $(CC) -o tst_extents $(srcdir)/extent.c \
|
||||
$(ALL_CFLAGS) -DDEBUG $(DEBUG_OBJS) $(LIBSS) $(LIBE2P) \
|
||||
$(STATIC_LIBEXT2FS) $(LIBBLKID) $(LIBUUID) $(STATIC_LIBCOM_ERR) \
|
||||
-I $(top_srcdir)/debugfs
|
||||
|
|
@ -446,7 +454,7 @@ clean::
|
|||
tst_byteswap tst_ismounted tst_getsize tst_sectgetsize \
|
||||
tst_bitops tst_types tst_icount tst_super_size tst_csum \
|
||||
tst_bitmaps tst_bitmaps_out tst_bitmaps_cmd.c \
|
||||
ext2_tdbtool mkjournal debug_cmds.c \
|
||||
ext2_tdbtool mkjournal debug_cmds.c extent_cmds.c \
|
||||
../libext2fs.a ../libext2fs_p.a ../libext2fs_chk.a \
|
||||
crc32c_table.h gen_crc32ctable tst_crc32c
|
||||
|
||||
|
|
|
|||
|
|
@ -1070,6 +1070,7 @@ extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
|
|||
extern void ext2fs_extent_free(ext2_extent_handle_t handle);
|
||||
extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
|
||||
int flags, struct ext2fs_extent *extent);
|
||||
extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
|
||||
extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
|
||||
struct ext2fs_extent *extent);
|
||||
extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
|
||||
|
|
@ -1082,6 +1083,8 @@ extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
|
|||
struct ext2_extent_info *info);
|
||||
extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
|
||||
blk64_t blk);
|
||||
extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
|
||||
int leaf_level, blk64_t blk);
|
||||
extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
|
||||
|
||||
/* fileio.c */
|
||||
|
|
|
|||
|
|
@ -604,8 +604,8 @@ errcode_t ext2fs_extent_free_path(ext2_extent_path_t path)
|
|||
* If "blk" has no mapping (hole) then handle is left at last
|
||||
* extent before blk.
|
||||
*/
|
||||
static errcode_t extent_goto(ext2_extent_handle_t handle,
|
||||
int leaf_level, blk64_t blk)
|
||||
errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
|
||||
int leaf_level, blk64_t blk)
|
||||
{
|
||||
struct ext2fs_extent extent;
|
||||
errcode_t retval;
|
||||
|
|
@ -694,7 +694,7 @@ static errcode_t extent_goto(ext2_extent_handle_t handle,
|
|||
errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
|
||||
blk64_t blk)
|
||||
{
|
||||
return extent_goto(handle, 0, blk);
|
||||
return ext2fs_extent_goto2(handle, 0, blk);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -756,7 +756,7 @@ errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle)
|
|||
}
|
||||
|
||||
/* put handle back to where we started */
|
||||
retval = extent_goto(handle, orig_height, start);
|
||||
retval = ext2fs_extent_goto2(handle, orig_height, start);
|
||||
done:
|
||||
return retval;
|
||||
}
|
||||
|
|
@ -819,7 +819,7 @@ errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle,
|
|||
*
|
||||
* handle will be left pointing at original record.
|
||||
*/
|
||||
static errcode_t extent_node_split(ext2_extent_handle_t handle)
|
||||
errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle)
|
||||
{
|
||||
errcode_t retval = 0;
|
||||
blk64_t new_node_pblk;
|
||||
|
|
@ -874,12 +874,12 @@ static errcode_t extent_node_split(ext2_extent_handle_t handle)
|
|||
goto done;
|
||||
goal_blk = extent.e_pblk;
|
||||
|
||||
retval = extent_node_split(handle);
|
||||
retval = ext2fs_extent_node_split(handle);
|
||||
if (retval)
|
||||
goto done;
|
||||
|
||||
/* get handle back to our original split position */
|
||||
retval = extent_goto(handle, orig_height, orig_lblk);
|
||||
retval = ext2fs_extent_goto2(handle, orig_height, orig_lblk);
|
||||
if (retval)
|
||||
goto done;
|
||||
}
|
||||
|
|
@ -1028,7 +1028,7 @@ static errcode_t extent_node_split(ext2_extent_handle_t handle)
|
|||
}
|
||||
|
||||
/* get handle back to our original position */
|
||||
retval = extent_goto(handle, orig_height, orig_lblk);
|
||||
retval = ext2fs_extent_goto2(handle, orig_height, orig_lblk);
|
||||
if (retval)
|
||||
goto done;
|
||||
|
||||
|
|
@ -1079,7 +1079,7 @@ errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
|
|||
printf("node full (level %d) - splitting\n",
|
||||
handle->level);
|
||||
#endif
|
||||
retval = extent_node_split(handle);
|
||||
retval = ext2fs_extent_node_split(handle);
|
||||
if (retval)
|
||||
return retval;
|
||||
path = handle->path + handle->level;
|
||||
|
|
@ -1447,7 +1447,7 @@ done:
|
|||
/* get handle back to its position */
|
||||
if (orig_height > handle->max_depth)
|
||||
orig_height = handle->max_depth; /* In case we shortened the tree */
|
||||
extent_goto(handle, orig_height, orig_lblk);
|
||||
ext2fs_extent_goto2(handle, orig_height, orig_lblk);
|
||||
return retval;
|
||||
}
|
||||
|
||||
|
|
@ -1559,477 +1559,10 @@ errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
|
|||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
|
||||
#include "ss/ss.h"
|
||||
|
||||
#include "debugfs.h"
|
||||
|
||||
/*
|
||||
* Hook in new commands into debugfs
|
||||
* Override debugfs's prompt
|
||||
*/
|
||||
const char *debug_prog_name = "tst_extents";
|
||||
extern ss_request_table extent_cmds;
|
||||
ss_request_table *extra_cmds = &extent_cmds;
|
||||
|
||||
ext2_ino_t current_ino = 0;
|
||||
ext2_extent_handle_t current_handle;
|
||||
|
||||
int common_extent_args_process(int argc, char *argv[], int min_argc,
|
||||
int max_argc, const char *cmd,
|
||||
const char *usage, int flags)
|
||||
{
|
||||
if (common_args_process(argc, argv, min_argc, max_argc, cmd,
|
||||
usage, flags))
|
||||
return 1;
|
||||
|
||||
if (!current_handle) {
|
||||
com_err(cmd, 0, "Extent handle not open");
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
void do_inode(int argc, char *argv[])
|
||||
{
|
||||
ext2_ino_t inode;
|
||||
int i;
|
||||
struct ext3_extent_header *eh;
|
||||
errcode_t retval;
|
||||
|
||||
if (check_fs_open(argv[0]))
|
||||
return;
|
||||
|
||||
if (argc == 1) {
|
||||
if (current_ino)
|
||||
printf("Current inode is %d\n", current_ino);
|
||||
else
|
||||
printf("No current inode\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (common_inode_args_process(argc, argv, &inode, 0)) {
|
||||
return;
|
||||
}
|
||||
|
||||
current_ino = 0;
|
||||
|
||||
retval = ext2fs_extent_open(current_fs, inode, ¤t_handle);
|
||||
if (retval) {
|
||||
com_err(argv[1], retval, "while opening extent handle");
|
||||
return;
|
||||
}
|
||||
|
||||
current_ino = inode;
|
||||
|
||||
printf("Loaded inode %d\n", current_ino);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
void generic_goto_node(char *cmd_name, int op)
|
||||
{
|
||||
struct ext2fs_extent extent;
|
||||
errcode_t retval;
|
||||
|
||||
if (check_fs_open(cmd_name))
|
||||
return;
|
||||
|
||||
if (!current_handle) {
|
||||
com_err(cmd_name, 0, "Extent handle not open");
|
||||
return;
|
||||
}
|
||||
|
||||
retval = ext2fs_extent_get(current_handle, op, &extent);
|
||||
if (retval) {
|
||||
com_err(cmd_name, retval, 0);
|
||||
return;
|
||||
}
|
||||
dbg_print_extent(0, &extent);
|
||||
}
|
||||
|
||||
void do_current_node(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_CURRENT);
|
||||
}
|
||||
|
||||
void do_root_node(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_ROOT);
|
||||
}
|
||||
|
||||
void do_last_leaf(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_LAST_LEAF);
|
||||
}
|
||||
|
||||
void do_first_sib(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_FIRST_SIB);
|
||||
}
|
||||
|
||||
void do_last_sib(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_LAST_SIB);
|
||||
}
|
||||
|
||||
void do_next_sib(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_NEXT_SIB);
|
||||
}
|
||||
|
||||
void do_prev_sib(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_PREV_SIB);
|
||||
}
|
||||
|
||||
void do_next_leaf(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_NEXT_LEAF);
|
||||
}
|
||||
|
||||
void do_prev_leaf(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_PREV_LEAF);
|
||||
}
|
||||
|
||||
void do_next(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_NEXT);
|
||||
}
|
||||
|
||||
void do_prev(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_PREV);
|
||||
}
|
||||
|
||||
void do_up(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_UP);
|
||||
}
|
||||
|
||||
void do_down(int argc, char *argv[])
|
||||
{
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_DOWN);
|
||||
}
|
||||
|
||||
void do_delete_node(int argc, char *argv[])
|
||||
{
|
||||
errcode_t retval;
|
||||
int err;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 1, 1, "delete_node",
|
||||
"", CHECK_FS_RW | CHECK_FS_BITMAPS))
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_delete(current_handle, 0);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
if (current_handle->path && current_handle->path[0].curr)
|
||||
do_current_node(argc, argv);
|
||||
}
|
||||
|
||||
void do_replace_node(int argc, char *argv[])
|
||||
{
|
||||
const char *usage = "[--uninit] <lblk> <len> <pblk>";
|
||||
errcode_t retval;
|
||||
struct ext2fs_extent extent;
|
||||
int err;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 3, 5, "replace_node",
|
||||
usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
|
||||
return;
|
||||
|
||||
extent.e_flags = 0;
|
||||
|
||||
if (!strcmp(argv[1], "--uninit")) {
|
||||
argc--;
|
||||
argv++;
|
||||
extent.e_flags |= EXT2_EXTENT_FLAGS_UNINIT;
|
||||
}
|
||||
|
||||
if (argc != 4) {
|
||||
fprintf(stderr, "Usage: %s %s\n", argv[0], usage);
|
||||
return;
|
||||
}
|
||||
|
||||
extent.e_lblk = parse_ulong(argv[1], argv[0], "logical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
extent.e_len = parse_ulong(argv[2], argv[0], "logical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
extent.e_pblk = parse_ulong(argv[3], argv[0], "logical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_replace(current_handle, 0, &extent);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
do_current_node(argc, argv);
|
||||
}
|
||||
|
||||
void do_split_node(int argc, char *argv[])
|
||||
{
|
||||
errcode_t retval;
|
||||
struct ext2fs_extent extent;
|
||||
int err;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 1, 1, "split_node",
|
||||
"", CHECK_FS_RW | CHECK_FS_BITMAPS))
|
||||
return;
|
||||
|
||||
retval = extent_node_split(current_handle);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
do_current_node(argc, argv);
|
||||
}
|
||||
|
||||
void do_insert_node(int argc, char *argv[])
|
||||
{
|
||||
const char *usage = "[--after] [--uninit] <lblk> <len> <pblk>";
|
||||
errcode_t retval;
|
||||
struct ext2fs_extent extent;
|
||||
char *cmd;
|
||||
int err;
|
||||
int flags = 0;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 3, 6, "insert_node",
|
||||
usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
|
||||
return;
|
||||
|
||||
cmd = argv[0];
|
||||
|
||||
extent.e_flags = 0;
|
||||
|
||||
while (argc > 2) {
|
||||
if (!strcmp(argv[1], "--after")) {
|
||||
argc--;
|
||||
argv++;
|
||||
flags |= EXT2_EXTENT_INSERT_AFTER;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(argv[1], "--uninit")) {
|
||||
argc--;
|
||||
argv++;
|
||||
extent.e_flags |= EXT2_EXTENT_FLAGS_UNINIT;
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (argc != 4) {
|
||||
fprintf(stderr, "usage: %s %s\n", cmd, usage);
|
||||
return;
|
||||
}
|
||||
|
||||
extent.e_lblk = parse_ulong(argv[1], cmd,
|
||||
"logical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
extent.e_len = parse_ulong(argv[2], cmd,
|
||||
"length", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
extent.e_pblk = parse_ulong(argv[3], cmd,
|
||||
"pysical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_insert(current_handle, flags, &extent);
|
||||
if (retval) {
|
||||
com_err(cmd, retval, 0);
|
||||
return;
|
||||
}
|
||||
do_current_node(argc, argv);
|
||||
}
|
||||
|
||||
void do_set_bmap(int argc, char **argv)
|
||||
{
|
||||
const char *usage = "[--uninit] <lblk> <pblk>";
|
||||
errcode_t retval;
|
||||
blk_t logical;
|
||||
blk_t physical;
|
||||
char *cmd = argv[0];
|
||||
int flags = 0;
|
||||
int err;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 3, 5, "set_bmap",
|
||||
usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
|
||||
return;
|
||||
|
||||
if (argc > 2 && !strcmp(argv[1], "--uninit")) {
|
||||
argc--;
|
||||
argv++;
|
||||
flags |= EXT2_EXTENT_SET_BMAP_UNINIT;
|
||||
}
|
||||
|
||||
if (argc != 3) {
|
||||
fprintf(stderr, "Usage: %s %s\n", cmd, usage);
|
||||
return;
|
||||
}
|
||||
|
||||
logical = parse_ulong(argv[1], cmd,
|
||||
"logical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
physical = parse_ulong(argv[2], cmd,
|
||||
"physical block", &err);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_set_bmap(current_handle, logical,
|
||||
(blk64_t) physical, flags);
|
||||
if (retval) {
|
||||
com_err(cmd, retval, 0);
|
||||
return;
|
||||
}
|
||||
if (current_handle->path && current_handle->path[0].curr)
|
||||
do_current_node(argc, argv);
|
||||
}
|
||||
|
||||
void do_print_all(int argc, char **argv)
|
||||
{
|
||||
const char *usage = "[--leaf-only|--reverse|--reverse-leaf]";
|
||||
struct ext2fs_extent extent;
|
||||
errcode_t retval;
|
||||
errcode_t end_err = EXT2_ET_EXTENT_NO_NEXT;
|
||||
int op = EXT2_EXTENT_NEXT;
|
||||
int first_op = EXT2_EXTENT_ROOT;
|
||||
|
||||
|
||||
if (common_extent_args_process(argc, argv, 1, 2, "print_all",
|
||||
usage, 0))
|
||||
return;
|
||||
|
||||
if (argc == 2) {
|
||||
if (!strcmp(argv[1], "--leaf-only"))
|
||||
op = EXT2_EXTENT_NEXT_LEAF;
|
||||
else if (!strcmp(argv[1], "--reverse")) {
|
||||
op = EXT2_EXTENT_PREV;
|
||||
first_op = EXT2_EXTENT_LAST_LEAF;
|
||||
end_err = EXT2_ET_EXTENT_NO_PREV;
|
||||
} else if (!strcmp(argv[1], "--reverse-leaf")) {
|
||||
op = EXT2_EXTENT_PREV_LEAF;
|
||||
first_op = EXT2_EXTENT_LAST_LEAF;
|
||||
end_err = EXT2_ET_EXTENT_NO_PREV;
|
||||
} else {
|
||||
fprintf(stderr, "Usage: %s %s\n", argv[0], usage);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
retval = ext2fs_extent_get(current_handle, first_op, &extent);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
dbg_print_extent(0, &extent);
|
||||
|
||||
while (1) {
|
||||
retval = ext2fs_extent_get(current_handle, op, &extent);
|
||||
if (retval == end_err)
|
||||
break;
|
||||
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
dbg_print_extent(0, &extent);
|
||||
}
|
||||
}
|
||||
|
||||
void do_fix_parents(int argc, char **argv)
|
||||
{
|
||||
struct ext2fs_extent extent;
|
||||
struct ext2_extent_info info;
|
||||
errcode_t retval;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 1, 1, "fix_parents", "",
|
||||
CHECK_FS_RW))
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_fix_parents(current_handle);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void do_info(int argc, char **argv)
|
||||
{
|
||||
struct ext2fs_extent extent;
|
||||
struct ext2_extent_info info;
|
||||
errcode_t retval;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 1, 1, "info", "", 0))
|
||||
return;
|
||||
|
||||
retval = ext2fs_extent_get_info(current_handle, &info);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
|
||||
retval = ext2fs_extent_get(current_handle,
|
||||
EXT2_EXTENT_CURRENT, &extent);
|
||||
if (retval) {
|
||||
com_err(argv[0], retval, 0);
|
||||
return;
|
||||
}
|
||||
|
||||
dbg_print_extent(0, &extent);
|
||||
|
||||
printf("Current handle location: %d/%d (max: %d, bytes %d), level %d/%d\n",
|
||||
info.curr_entry, info.num_entries, info.max_entries,
|
||||
info.bytes_avail, info.curr_level, info.max_depth);
|
||||
printf("\tmax lblk: %llu, max pblk: %llu\n", info.max_lblk,
|
||||
info.max_pblk);
|
||||
printf("\tmax_len: %u, max_uninit_len: %u\n", info.max_len,
|
||||
info.max_uninit_len);
|
||||
}
|
||||
|
||||
void do_goto_block(int argc, char **argv)
|
||||
{
|
||||
struct ext2fs_extent extent;
|
||||
errcode_t retval;
|
||||
int op = EXT2_EXTENT_NEXT_LEAF;
|
||||
blk64_t blk;
|
||||
int level = 0, err;
|
||||
|
||||
if (common_extent_args_process(argc, argv, 2, 3, "goto_block",
|
||||
"block [level]", 0))
|
||||
return;
|
||||
|
||||
if (strtoblk(argv[0], argv[1], &blk))
|
||||
return;
|
||||
|
||||
if (argc == 3) {
|
||||
level = parse_ulong(argv[2], argv[0], "level", &err);
|
||||
if (err)
|
||||
return;
|
||||
}
|
||||
|
||||
retval = extent_goto(current_handle, level, (blk64_t) blk);
|
||||
|
||||
if (retval) {
|
||||
com_err(argv[0], retval,
|
||||
"while trying to go to block %llu, level %d",
|
||||
(unsigned long long) blk, level);
|
||||
return;
|
||||
}
|
||||
|
||||
generic_goto_node(argv[0], EXT2_EXTENT_CURRENT);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue