--- /dev/null
+*~
+*.la
+*.lo
+*.o
+
+/local*
+
+/.deps/
+/.gdb_history
+/.libs/
+/Makefile
+/Makefile.in
+/aclocal.m4
+/autom4te.cache/
+/compile
+/config.guess
+/config.h
+/config.h.in
+/config.log
+/config.status
+/config.sub
+/configure
+/depcomp
+/libtool
+/ltmain.sh
+/install-sh
+/missing
+/run
+/stamp-h1
+/virt-bmap
--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
+ 1 and 2 above on a medium customarily used for software interchange; or,
+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
+ cost of physically performing source distribution, a complete
+ machine-readable copy of the corresponding source code, to be
+ distributed under the terms of Sections 1 and 2 above on a medium
+ customarily used for software interchange; or,
+
+ c) Accompany it with the information you received as to the offer
+ to distribute corresponding source code. (This alternative is
+ allowed only for noncommercial distribution and only if you
+ received the program in object code or executable form with such
+ an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it. For an executable work, complete source
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+associated interface definition files, plus the scripts used to
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+
+If distribution of executable or object code is made by offering
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+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
--- /dev/null
+# virt-bmap
+# Copyright (C) 2014 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+CLEANFILES = *~
+
+bin_SCRIPTS = virt-bmap
+
+lib_LTLIBRARIES = \
+ virtbmapexaminer.la
+virtbmapexaminer_la_CPPFLAGS = \
+ -I$(srcdir)
+virtbmapexaminer_la_CFLAGS = \
+ -Wall \
+ -pthread \
+ $(GUESTFS_CFLAGS)
+virtbmapexaminer_la_LIBADD = \
+ $(GUESTFS_LIBS)
+virtbmapexaminer_la_LDFLAGS = \
+ -module -avoid-version -shared
+virtbmapexaminer_la_SOURCES = \
+ cleanups.c \
+ cleanups.h \
+ examiner.c \
+ ranges.cpp \
+ ranges.h \
+ visit.c \
+ visit.h
--- /dev/null
+Virt-bmap constructs a mapping of disk block -> file for a disk image.
+It requires libguestfs >= 1.29.10, nbdkit >= 1.1, Boost, and pod2man.
+`configure' will check the requirements.
+
+Discussion, patches, etc. on the virt-tools mailing list:
+http://www.redhat.com/mailman/listinfo/virt-tools-list
\ No newline at end of file
--- /dev/null
+/* cleanup functions (from libguestfs)
+ * Copyright (C) 2010-2014 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <guestfs.h>
+
+void
+cleanup_free (void *ptr)
+{
+ free (* (void **) ptr);
+}
+
+void
+free_string_list (char **argv)
+{
+ size_t i;
+
+ if (argv == NULL)
+ return;
+
+ for (i = 0; argv[i] != NULL; ++i)
+ free (argv[i]);
+ free (argv);
+}
+
+void
+cleanup_free_string_list (char ***ptr)
+{
+ free_string_list (*ptr);
+}
+
+void
+cleanup_free_statns (void *ptr)
+{
+ guestfs_free_statns (* (struct guestfs_statns **) ptr);
+}
+
+void
+cleanup_free_xattr_list (void *ptr)
+{
+ guestfs_free_xattr_list (* (struct guestfs_xattr_list **) ptr);
+}
+
+void
+cleanup_free_stat_list (void *ptr)
+{
+ guestfs_free_stat_list (* (struct guestfs_stat_list **) ptr);
+}
--- /dev/null
+/* cleanup functions (from libguestfs)
+ * Copyright (C) 2010-2014 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <config.h>
+
+#ifndef CLEANUPS_H
+#define CLEANUPS_H
+
+#ifdef HAVE_ATTRIBUTE_CLEANUP
+
+#define CLEANUP_FREE __attribute__((cleanup(cleanup_free)))
+#define CLEANUP_FREE_STRING_LIST \
+ __attribute__((cleanup(cleanup_free_string_list)))
+#define CLEANUP_FREE_STATNS \
+ __attribute__((cleanup(cleanup_free_statns)))
+#define CLEANUP_FREE_XATTR_LIST \
+ __attribute__((cleanup(cleanup_free_xattr_list)))
+#define CLEANUP_FREE_STAT_LIST \
+ __attribute__((cleanup(cleanup_free_stat_list)))
+
+#else
+#define CLEANUP_FREE
+#define CLEANUP_FREE_STRING_LIST
+#define CLEANUP_FREE_STATNS
+#define CLEANUP_FREE_XATTR_LIST
+#define CLEANUP_FREE_STAT_LIST
+#endif
+
+extern void cleanup_free (void *ptr);
+extern void free_string_list (char **argv);
+extern void cleanup_free_string_list (char ***ptr);
+extern void cleanup_free_statns (void *ptr);
+extern void cleanup_free_xattr_list (void *ptr);
+extern void cleanup_free_stat_list (void *ptr);
+
+#endif /* CLEANUPS_H */
--- /dev/null
+# virt-bmap
+# Copyright (C) 2014 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+AC_INIT([virt-bmap],[0.1])
+AM_INIT_AUTOMAKE([foreign])
+
+dnl Check for basic C environment.
+AC_PROG_CC_STDC
+AM_PROG_CC_C_O
+AC_PROG_CPP
+
+AC_C_PROTOTYPES
+test "x$U" != "x" && AC_MSG_ERROR([Compiler not ANSI compliant])
+
+dnl C++ environment.
+AC_PROG_CXX
+AC_PROG_CXX_C_O
+
+AC_PROG_INSTALL
+
+dnl Define GNU_SOURCE etc.
+AC_USE_SYSTEM_EXTENSIONS
+
+dnl Need libtool for creating the shared library.
+AC_PROG_LIBTOOL
+
+dnl Check if __attribute__((cleanup(...))) works.
+dnl XXX It would be nice to use AC_COMPILE_IFELSE here, but gcc just
+dnl emits a warning for attributes that it doesn't understand.
+AC_MSG_CHECKING([if __attribute__((cleanup(...))) works with this compiler])
+AC_RUN_IFELSE([
+AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+freep (void *ptr)
+{
+ exit (EXIT_SUCCESS);
+}
+
+void
+test (void)
+{
+ __attribute__((cleanup(freep))) char *ptr = malloc (100);
+}
+
+int
+main (int argc, char *argv[])
+{
+ test ();
+ exit (EXIT_FAILURE);
+}
+]])
+ ],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE([HAVE_ATTRIBUTE_CLEANUP],[1],[Define to 1 if '__attribute__((cleanup(...)))' works with this compiler.])
+ ],[
+ AC_MSG_WARN(
+['__attribute__((cleanup(...)))' does not work.
+
+You may not be using a sufficiently recent version of GCC or CLANG, or
+you may be using a C compiler which does not support this attribute,
+or the configure test may be wrong.
+
+The code will still compile, but is likely to leak memory and other
+resources when it runs.])])
+
+dnl Check new enough libguestfs.
+PKG_CHECK_MODULES([GUESTFS], [libguestfs >= 1.28])
+
+dnl We need some new APIs which were added specifically for virt-bmap:
+AC_CHECK_LIB([guestfs], [guestfs_blockdev_setra], [], [
+ AC_MSG_ERROR([you need libguestfs >= 1.29.10 which has `guestfs_blockdev_setra'])
+])
+AC_CHECK_LIB([guestfs], [guestfs_bmap], [], [
+ AC_MSG_ERROR([you need libguestfs >= 1.29.10 which has `guestfs_bmap'])
+])
+
+dnl Check nbdkit is installed.
+AC_CHECK_PROG([NBDKIT], [nbdkit], [nbdkit], [no])
+if test "$NBDKIT" = "xno"; then
+ AC_MSG_ERROR([nbdkit was not found])
+fi
+AC_CHECK_HEADER([nbdkit-plugin.h],[],[
+ AC_MSG_ERROR([you need to install the nbdkit development package])
+])
+
+dnl Check for C++ boost library with interval_map.hpp
+AC_LANG_PUSH([C++])
+AC_CHECK_HEADERS([boost/icl/interval_map.hpp], [],
+ [AC_MSG_ERROR(You need the Boost libraries.)])
+AC_LANG_POP([C++])
+
+dnl Check for pod2man (from Perl, for the manual).
+AC_CHECK_PROG([POD2MAN], [pod2man], [pod2man], [no])
+if test "x$POD2MAN" = "xno"; then
+ AC_MSG_ERROR([pod2man was not found. This is needed to build man pages.])
+fi
+
+dnl Produce output files.
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([run], [chmod +x,-w run])
+AC_CONFIG_FILES([virt-bmap], [chmod +x,-w virt-bmap])
+
+AC_OUTPUT
--- /dev/null
+/* virt-bmap examiner plugin
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* This is an nbdkit plugin which implements the guts of the 'virt-bmap'
+ * command.
+ *
+ * IMPORTANT NOTES:
+ *
+ * Do not try to use this plugin directly! Use the 'virt-bmap'
+ * wrapper script which sets up the arguments correctly and calls
+ * nbdkit.
+ *
+ * This is a bit of a weird nbdkit plugin, because it calls itself.
+ * Do not use it as an example of how to write plugins! See the
+ * nbdkit 'example*.c' files supplied in the nbdkit source, and also
+ * read the nbdkit-plugin(3) documentation.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <assert.h>
+
+#include <pthread.h>
+
+#include <nbdkit-plugin.h>
+
+#include <guestfs.h>
+
+#include "cleanups.h"
+#include "ranges.h"
+#include "visit.h"
+
+static char *output = NULL;
+static char *disk = NULL;
+static const char *socket = NULL;
+static const char *format = "raw";
+static int fd = -1;
+static int64_t size = -1;
+static int thread_running = 0;
+static pthread_t thread;
+
+static struct thread_info {
+ guestfs_h *g;
+ int ret;
+} thread_info;
+
+/* Current object being mapped. */
+static pthread_mutex_t current_object_mutex = PTHREAD_MUTEX_INITIALIZER;
+static char *current_object = NULL;
+
+/* Ranges. NB: acquire current_object_mutex before accessing. */
+static void *ranges = NULL;
+
+static void *start_thread (void *);
+
+static int
+bmap_config (const char *key, const char *value)
+{
+ if (strcmp (key, "disk") == 0) {
+ free (disk);
+ disk = nbdkit_absolute_path (value);
+ if (disk == NULL)
+ return -1;
+ }
+ else if (strcmp (key, "format") == 0) {
+ format = value;
+ }
+ else if (strcmp (key, "output") == 0) {
+ free (output);
+ output = nbdkit_absolute_path (value);
+ if (output == NULL)
+ return -1;
+ }
+ else if (strcmp (key, "socket") == 0) {
+ socket = value;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+bmap_config_complete (void)
+{
+ struct stat statbuf;
+ guestfs_h *g;
+ int err;
+
+ if (!output || !disk || !socket) {
+ nbdkit_error ("missing parameters: are you using the 'virt-bmap' wrapper?");
+ return -1;
+ }
+
+ ranges = new_ranges ();
+
+ fd = open (disk, O_RDONLY);
+ if (fd == -1) {
+ nbdkit_error ("%s: %m", disk);
+ return -1;
+ }
+
+ if (fstat (fd, &statbuf) == -1) {
+ nbdkit_error ("fstat: %m");
+ return -1;
+ }
+ size = statbuf.st_size;
+
+ /* Open the guestfs handle synchronously so we can print errors. */
+ g = guestfs_create ();
+ if (!g) {
+ nbdkit_error ("guestfs_create: %m");
+ return -1;
+ }
+
+ /* Start the guestfs thread. */
+ memset (&thread_info, 0, sizeof thread_info);
+ thread_info.g = g;
+ err = pthread_create (&thread, NULL, start_thread, &thread_info);
+ if (err != 0) {
+ nbdkit_error ("cannot start guestfs thread: %s", strerror (err));
+ return -1;
+ }
+ thread_running = 1;
+
+ return 0;
+}
+
+static void
+bmap_unload (void)
+{
+ int err;
+ void *retv;
+
+ free_ranges (ranges);
+
+ if (thread_running) {
+ err = pthread_join (thread, &retv);
+ if (err != 0)
+ fprintf (stderr, "cannot join guestfs thread: %s\n", strerror (err));
+ if (* (int *) retv != 0)
+ fprintf (stderr, "ERROR: failed to construct block map, see earlier errors\n");
+ /* unfortunately we can't return the correct exit code here XXX */
+ }
+ if (fd >= 0)
+ close (fd);
+ free (output);
+ free (disk);
+}
+
+#define bmap_config_help \
+ "output=<OUTPUT> Output filename (block map)\n" \
+ "disk=<DISK> Input disk filename" \
+ "format=raw|qcow2|.. Format of input disk (default: raw)\n"
+
+/* The per-connection handle. */
+struct bmap_handle {
+ /* empty */
+};
+
+/* Create the per-connection handle. */
+static void *
+bmap_open (int readonly)
+{
+ struct bmap_handle *h;
+
+ if (!readonly) {
+ nbdkit_error ("handle must be opened readonly");
+ return NULL;
+ }
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ return h;
+}
+
+/* Free up the per-connection handle. */
+static void
+bmap_close (void *handle)
+{
+ struct bmap_handle *h = handle;
+
+ free (h);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+/* Get the file size. */
+static int64_t
+bmap_get_size (void *handle)
+{
+ return size;
+}
+
+/* Mark the start and end of guestfs bmap operations. This is called
+ * from the guestfs thread, so we must lock any shared data structures.
+ */
+static void
+mark_start (const char *object)
+{
+ pthread_mutex_lock (¤t_object_mutex);
+ free (current_object);
+ current_object = strdup (object);
+ if (current_object == NULL)
+ abort ();
+ pthread_mutex_unlock (¤t_object_mutex);
+}
+
+static void
+mark_end (void)
+{
+ pthread_mutex_lock (¤t_object_mutex);
+ free (current_object);
+ current_object = NULL;
+ pthread_mutex_unlock (¤t_object_mutex);
+}
+
+static void
+add_range (uint64_t offset, uint32_t count)
+{
+ pthread_mutex_lock (¤t_object_mutex);
+ if (current_object)
+ insert_range (ranges, offset, offset+count, current_object);
+ pthread_mutex_unlock (¤t_object_mutex);
+}
+
+/* Read data from the file. */
+static int
+bmap_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ ssize_t r;
+
+ add_range (offset, count);
+
+ if (lseek (fd, offset, SEEK_SET) == -1) {
+ nbdkit_error ("lseek: %m");
+ return -1;
+ }
+
+ while (count > 0) {
+ r = read (fd, buf, count);
+ if (r == -1) {
+ nbdkit_error ("read: %m");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("read: unexpected end of file");
+ return -1;
+ }
+ count -= r;
+ buf += r;
+ }
+
+ return 0;
+}
+
+/* This is the guestfs thread which calls back into nbdkit. */
+
+static int count_partitions = 0;
+static int count_lvs = 0;
+static int count_filesystems = 0;
+static int count_regular = 0;
+static int count_directory = 0;
+
+static int examine_partitions (guestfs_h *g);
+static int examine_lvs (guestfs_h *g);
+static int examine_filesystems (guestfs_h *g);
+static int examine_filesystem (guestfs_h *g, const char *dev, const char *type);
+static int visit_fn (const char *dir, const char *name, const struct guestfs_statns *stat, const struct guestfs_xattr_list *xattrs, void *opaque);
+static int ranges_to_output (void);
+
+static void *
+start_thread (void *infov)
+{
+ struct thread_info *info = infov;
+ guestfs_h *g = info->g;
+ size_t i;
+ CLEANUP_FREE char *server = NULL;
+ const char *servers[2];
+
+ info->ret = -1;
+
+ /* Wait for the socket to appear, ie. for nbdkit to start up. */
+ for (i = 0; i < 10; ++i) {
+ if (access (socket, R_OK) == 0)
+ goto nbdkit_started;
+ sleep (1);
+ }
+
+ fprintf (stderr, "timed out waiting for nbdkit server to start up\n");
+ goto error;
+
+ nbdkit_started:
+ if (asprintf (&server, "unix:%s", socket) == -1) {
+ perror ("asprintf");
+ goto error;
+ }
+
+ servers[0] = server;
+ servers[1] = NULL;
+
+ if (guestfs_add_drive_opts (g, "" /* export name */,
+ GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, format,
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, servers,
+ -1) == -1)
+ goto error;
+
+ if (guestfs_launch (g) == -1)
+ goto error;
+
+ /* Examine non-filesystem objects. */
+ if (examine_partitions (g) == -1)
+ goto error;
+ if (examine_lvs (g) == -1)
+ goto error;
+
+ /* Examine filesystems. */
+ if (examine_filesystems (g) == -1)
+ goto error;
+
+ /* Convert ranges to final output file. */
+ printf ("virt-bmap: writing %s\n", output);
+ if (ranges_to_output () == -1)
+ goto error;
+
+ /* Print summary. */
+ printf ("virt-bmap: successfully examined %d partitions, %d logical volumes,\n"
+ " %d filesystems, %d directories, %d files\n"
+ "virt-bmap: output written to %s\n",
+ count_partitions, count_lvs,
+ count_filesystems, count_directory, count_regular,
+ output);
+ info->ret = 0;
+ error:
+ guestfs_close (g);
+
+ /* Kill the nbdkit process so it exits. The nbdkit process is us,
+ * so we're killing ourself here.
+ */
+ kill (getpid (), SIGTERM);
+
+ return &info->ret;
+}
+
+static int
+examine_partitions (guestfs_h *g)
+{
+ CLEANUP_FREE_STRING_LIST char **parts = NULL;
+ size_t i;
+ int r;
+
+ /* Get partitions. */
+ parts = guestfs_list_partitions (g);
+ if (parts == NULL)
+ return -1;
+
+ for (i = 0; parts[i] != NULL; ++i) {
+ CLEANUP_FREE char *object = NULL;
+
+ printf ("virt-bmap: examining %s ...\n", parts[i]);
+ count_partitions++;
+
+ if (asprintf (&object, "p %s", parts[i]) == -1)
+ return -1;
+
+ if (guestfs_bmap_device (g, parts[i]) == -1)
+ return -1;
+ mark_start (object);
+ r = guestfs_bmap (g);
+ mark_end ();
+ if (r == -1) return -1;
+ }
+
+ return 0;
+
+}
+
+static int
+examine_lvs (guestfs_h *g)
+{
+ CLEANUP_FREE_STRING_LIST char **lvs = NULL;
+ size_t i;
+ int r;
+
+ /* Get LVs. */
+ lvs = guestfs_lvs (g);
+ if (lvs == NULL)
+ return -1;
+
+ for (i = 0; lvs[i] != NULL; ++i) {
+ CLEANUP_FREE char *object = NULL;
+
+ printf ("virt-bmap: examining %s ...\n", lvs[i]);
+ count_lvs++;
+
+ if (asprintf (&object, "lvm_lv %s", lvs[i]) == -1)
+ return -1;
+
+ if (guestfs_bmap_device (g, lvs[i]) == -1)
+ return -1;
+ mark_start (object);
+ r = guestfs_bmap (g);
+ mark_end ();
+ if (r == -1) return -1;
+ }
+
+ return 0;
+}
+
+static int
+examine_filesystems (guestfs_h *g)
+{
+ CLEANUP_FREE_STRING_LIST char **filesystems = NULL;
+ size_t i;
+
+ /* Get the filesystems in the disk image. */
+ filesystems = guestfs_list_filesystems (g);
+ if (filesystems == NULL)
+ return -1;
+
+ for (i = 0; filesystems[i] != NULL; i += 2) {
+ if (examine_filesystem (g, filesystems[i], filesystems[i+1]) == -1)
+ return -1;
+ }
+
+ return 0;
+}
+
+static size_t
+count_strings (char *const *argv)
+{
+ size_t r;
+
+ for (r = 0; argv[r]; ++r)
+ ;
+
+ return r;
+}
+
+struct visit_context {
+ guestfs_h *g;
+ const char *dev; /* filesystem */
+ size_t nr_files; /* used for progress bar */
+ size_t files_processed;
+};
+
+static int
+examine_filesystem (guestfs_h *g, const char *dev, const char *type)
+{
+ int r;
+
+ /* Try to mount it. */
+ guestfs_push_error_handler (g, NULL, NULL);
+ r = guestfs_mount_ro (g, dev, "/");
+ guestfs_pop_error_handler (g);
+ if (r == 0) {
+ struct visit_context context;
+ CLEANUP_FREE_STRING_LIST char **files = NULL;
+
+ /* Mountable, so examine the filesystem. */
+ printf ("virt-bmap: examining filesystem on %s (%s) ...\n", dev, type);
+ count_filesystems++;
+
+ /* Read how many files/directories there are so we can estimate
+ * progress.
+ */
+ files = guestfs_find (g, "/");
+
+ /* Set filesystem readahead to 0, but ignore error if not possible. */
+ guestfs_push_error_handler (g, NULL, NULL);
+ guestfs_blockdev_setra (g, dev, 0);
+ guestfs_pop_error_handler (g);
+
+ context.g = g;
+ context.dev = dev;
+ context.nr_files = count_strings (files);
+ context.files_processed = 0;
+ if (visit (g, "/", visit_fn, &context) == -1)
+ return -1;
+ }
+
+ guestfs_umount_all (g);
+
+ return 0;
+}
+
+static int
+visit_fn (const char *dir, const char *name,
+ const struct guestfs_statns *stat,
+ const struct guestfs_xattr_list *xattrs,
+ void *contextv)
+{
+ struct visit_context *context = contextv;
+ guestfs_h *g = context->g;
+ char type = '?';
+ CLEANUP_FREE char *path = NULL, *object = NULL;
+ int r;
+
+ context->files_processed++;
+ if ((context->files_processed & 255) == 0) {
+ printf ("%zu/%zu (%.1f%%) \r",
+ context->files_processed, context->nr_files,
+ 100.0 * context->files_processed / context->nr_files);
+ fflush (stdout);
+ }
+
+ path = full_path (dir, name);
+ if (path == NULL)
+ return -1;
+
+ if (is_reg (stat->st_mode))
+ type = 'f';
+ else if (is_dir (stat->st_mode))
+ type = 'd';
+
+ /* Note that the object string is structured (space-separated
+ * fields), and this is copied directly to the output file.
+ */
+ if (asprintf (&object, "%c %s %s", type, context->dev, path) == -1)
+ return -1;
+
+ if (type == 'f') { /* regular file */
+ count_regular++;
+ bmap_file:
+ if (guestfs_bmap_file (g, path) == -1)
+ return -1;
+ mark_start (object);
+ r = guestfs_bmap (g);
+ mark_end ();
+ if (r == -1) return -1;
+ }
+ else if (type == 'd') { /* directory */
+ count_directory++;
+ goto bmap_file;
+ }
+
+ return 0;
+}
+
+/* Convert ranges to output file format. */
+static void print_range (uint64_t start, uint64_t end, const char *object, void *opaque);
+
+static int
+ranges_to_output (void)
+{
+ FILE *fp;
+
+ pthread_mutex_lock (¤t_object_mutex);
+
+ /* Write out the ranges to 'output'. */
+ fp = fopen (output, "w");
+ if (fp == NULL) {
+ perror (output);
+ return -1;
+ }
+
+ iter_range (ranges, print_range, fp);
+
+ fclose (fp);
+
+ pthread_mutex_unlock (¤t_object_mutex);
+
+ return 0;
+}
+
+static void
+print_range (uint64_t start, uint64_t end, const char *object, void *opaque)
+{
+ FILE *fp = opaque;
+
+ /* Note that the initial '1' is meant to signify the first disk.
+ * Currently we can only map a single disk, but in future we
+ * should be able to handle multiple disks.
+ */
+ fprintf (fp, "1 %" PRIx64 " %" PRIx64 " %s\n", start, end, object);
+}
+
+/* Register the nbdkit plugin. */
+
+static struct nbdkit_plugin plugin = {
+ .name = "virtbmap",
+ .version = PACKAGE_VERSION,
+ .config = bmap_config,
+ .config_help = bmap_config_help,
+ .config_complete = bmap_config_complete,
+ .open = bmap_open,
+ .close = bmap_close,
+ .get_size = bmap_get_size,
+ .pread = bmap_pread,
+ .unload = bmap_unload,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+/* virt-bmap examiner plugin
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include <boost/icl/interval.hpp>
+#include <boost/icl/interval_map.hpp>
+
+using namespace std;
+
+/* Maps intervals (uint64_t, uint64_t) to a set of strings, where each
+ * string represents an object that covers that range.
+ */
+typedef set<string> objects;
+typedef boost::icl::interval_map<uint64_t, objects> ranges;
+
+extern "C" void *
+new_ranges (void)
+{
+ return new ranges ();
+}
+
+extern "C" void
+free_ranges (void *mapv)
+{
+ ranges *map = (ranges *) mapv;
+ delete map;
+}
+
+extern "C" void
+insert_range (void *mapv, uint64_t start, uint64_t end, const char *object)
+{
+ ranges *map = (ranges *) mapv;
+ objects obj_set;
+ obj_set.insert (object);
+ map->add (make_pair (boost::icl::interval<uint64_t>::right_open (start, end),
+ obj_set));
+}
+
+extern "C" void
+iter_range (void *mapv, void (*f) (uint64_t start, uint64_t end, const char *object, void *opaque), void *opaque)
+{
+ ranges *map = (ranges *) mapv;
+ ranges::iterator iter = map->begin ();
+ while (iter != map->end ()) {
+ boost::icl::interval<uint64_t>::type range = iter->first;
+ uint64_t start = range.lower ();
+ uint64_t end = range.upper ();
+
+ objects obj_set = iter->second;
+ objects::iterator iter2 = obj_set.begin ();
+ while (iter2 != obj_set.end ()) {
+ f (start, end, iter2->c_str (), opaque);
+ iter2++;
+ }
+ iter++;
+ }
+}
--- /dev/null
+/* virt-bmap examiner plugin
+ * Copyright (C) 2010-2014 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef RANGES_H
+#define RANGES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+extern void *new_ranges (void);
+extern void free_ranges (void *mapv);
+extern void insert_range (void *mapv, uint64_t start, uint64_t end, const char *object);
+extern void iter_range (void *mapv, void (*f) (uint64_t start, uint64_t end, const char *object, void *opaque), void *opaque);
+
+#ifdef __cplusplus
+};
+#endif /* __cplusplus */
+
+#endif /* RANGES_H */
--- /dev/null
+#!/bin/bash -
+# virt-bmap
+# Copyright (C) 2014 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Set environment variables so you can run virt-bmap without installing it.
+
+unset CDPATH
+
+# Source and build directories (absolute paths so this works from any
+# directory).
+s="$(cd @abs_srcdir@ && pwd)"
+b="$(cd @abs_builddir@ && pwd)"
+
+# Set PATH.
+export PATH=$b:$PATH
+
+# Set path to plugin.
+export VIRTBMAP_PLUGIN_DIR=$b/.libs
+
+exec "$@"
--- /dev/null
+#!/bin/bash -
+# virt-bmap
+# Copyright (C) 2014 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# 'virt-bmap' is a shell script wrapper that runs nbdkit with the
+# right options. Read virt-bmap(1) before trying to use this program.
+#
+# If you want to run this without installing then use the './run'
+# script in the build directory, eg:
+#
+# ./run virt-bmap -o bmap disk.img
+
+program=virt-bmap
+version="@PACKAGE_VERSION@"
+
+output=bmap
+format=raw
+
+TEMP=`getopt \
+ -o f:o:V \
+ --long help,format:,output:,version \
+ -n $program -- "$@"`
+if [ $? != 0 ]; then
+ echo "$program: problem parsing the command line arguments"
+ exit 1
+fi
+eval set -- "$TEMP"
+
+usage ()
+{
+ echo "Usage:"
+ echo " $program [-o bmap] [--format raw|qcow2|...] disk.img"
+ echo
+ echo "Read $program(1) man page for more information."
+ exit $1
+}
+
+while true; do
+ case "$1" in
+ -f|--format)
+ format="$2"
+ shift 2;;
+ -o|--output)
+ output="$2"
+ shift 2;;
+ -V|--version)
+ echo "$program $version"
+ exit 0;;
+ --help)
+ usage 0;;
+ --)
+ shift
+ break;;
+ *)
+ echo "internal error ($1)"
+ exit 1;;
+ esac
+done
+
+# At the moment we only support a single disk image argument.
+# Supporting multiple disk images requires adding support for export
+# names to nbdkit.
+if [ $# -ne 1 ]; then
+ echo "$program: Missing disk image argument. See $program(1)."
+ exit 1
+fi
+
+# Turn the disk image arguments into disk=...
+declare -a disks
+for arg in "$@"; do
+ disks+=("disk=$arg")
+done
+
+# Deal with stupid autotools libdir-not-expandable crap.
+prefix="@prefix@"
+exec_prefix="@exec_prefix@"
+libdir="@libdir@"
+
+# Get the examiner plugin.
+if [ -z "$VIRTBMAP_PLUGIN_DIR" ]; then
+ VIRTBMAP_PLUGIN_DIR="$libdir"
+fi
+
+# Create the socket.
+tmpdir="$(mktemp -d)"
+cleanup ()
+{
+ rm -rf "$tmpdir" ||:
+}
+trap cleanup EXIT ERR
+socket="$tmpdir/socket"
+
+# Run nbdkit with plugin and arguments.
+nbdkit -r -f -U "$socket" \
+ "$VIRTBMAP_PLUGIN_DIR/virtbmapexaminer.so" \
+ output="$output" \
+ format="$format" \
+ socket="$socket" \
+ "${disks[@]}"
--- /dev/null
+/* virt-ls visitor function (from libguestfs)
+ * Copyright (C) 2010-2014 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* Adapted from
+https://rwmj.wordpress.com/2010/12/15/tip-audit-virtual-machine-for-setuid-files/
+*/
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+#include <libintl.h>
+
+#include <guestfs.h>
+
+#include "cleanups.h"
+#include "visit.h"
+
+static int _visit (guestfs_h *g, int depth, const char *dir, visitor_function f, void *opaque);
+
+int
+visit (guestfs_h *g, const char *dir, visitor_function f, void *opaque)
+{
+ return _visit (g, 0, dir, f, opaque);
+}
+
+static int
+_visit (guestfs_h *g, int depth, const char *dir,
+ visitor_function f, void *opaque)
+{
+ /* Call 'f' with the top directory. Note that ordinary recursive
+ * visits will not otherwise do this, so we have to have a special
+ * case.
+ */
+ if (depth == 0) {
+ CLEANUP_FREE_STATNS struct guestfs_statns *stat = NULL;
+ CLEANUP_FREE_XATTR_LIST struct guestfs_xattr_list *xattrs = NULL;
+ int r;
+
+ stat = guestfs_lstatns (g, dir);
+ if (stat == NULL)
+ return -1;
+
+ xattrs = guestfs_lgetxattrs (g, dir);
+ if (xattrs == NULL)
+ return -1;
+
+ r = f (dir, NULL, stat, xattrs, opaque);
+
+ if (r == -1)
+ return -1;
+ }
+
+ size_t i, xattrp;
+ CLEANUP_FREE_STRING_LIST char **names = NULL;
+ CLEANUP_FREE_STAT_LIST struct guestfs_statns_list *stats = NULL;
+ CLEANUP_FREE_XATTR_LIST struct guestfs_xattr_list *xattrs = NULL;
+
+ names = guestfs_ls (g, dir);
+ if (names == NULL)
+ return -1;
+
+ stats = guestfs_lstatnslist (g, dir, names);
+ if (stats == NULL)
+ return -1;
+
+ xattrs = guestfs_lxattrlist (g, dir, names);
+ if (xattrs == NULL)
+ return -1;
+
+ /* Call function on everything in this directory. */
+ for (i = 0, xattrp = 0; names[i] != NULL; ++i, ++xattrp) {
+ CLEANUP_FREE char *path = NULL;
+ struct guestfs_xattr_list file_xattrs;
+ size_t nr_xattrs;
+
+ assert (stats->len >= i);
+ assert (xattrs->len >= xattrp);
+
+ /* Find the list of extended attributes for this file. */
+ assert (strlen (xattrs->val[xattrp].attrname) == 0);
+
+ if (xattrs->val[xattrp].attrval_len == 0) {
+ fprintf (stderr, "virt-bmap: error getting extended attrs for %s %s\n",
+ dir, names[i]);
+ return -1;
+ }
+ /* attrval is not \0-terminated. */
+ char attrval[xattrs->val[xattrp].attrval_len+1];
+ memcpy (attrval, xattrs->val[xattrp].attrval,
+ xattrs->val[xattrp].attrval_len);
+ attrval[xattrs->val[xattrp].attrval_len] = '\0';
+ if (sscanf (attrval, "%zu", &nr_xattrs) != 1) {
+ fprintf (stderr, "virt-bmap: error: cannot parse xattr count for %s %s\n",
+ dir, names[i]);
+ return -1;
+ }
+
+ file_xattrs.len = nr_xattrs;
+ file_xattrs.val = &xattrs->val[xattrp+1];
+ xattrp += nr_xattrs;
+
+ /* Call the function. */
+ if (f (dir, names[i], &stats->val[i], &file_xattrs, opaque) == -1)
+ return -1;
+
+ /* Recursively call visit, but only on directories. */
+ if (is_dir (stats->val[i].st_mode)) {
+ path = full_path (dir, names[i]);
+ if (path == NULL)
+ return -1;
+ if (_visit (g, depth + 1, path, f, opaque) == -1)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+char *
+full_path (const char *dir, const char *name)
+{
+ int r;
+ char *path;
+ int len;
+
+ len = strlen (dir);
+ if (len > 0 && dir[len - 1] == '/')
+ --len;
+
+ if (strcmp (dir, "/") == 0)
+ r = asprintf (&path, "/%s", name ? name : "");
+ else if (name)
+ r = asprintf (&path, "%.*s/%s", len, dir, name);
+ else
+ r = asprintf (&path, "%.*s", len, dir);
+
+ if (r == -1) {
+ perror ("asprintf");
+ return NULL;
+ }
+
+ return path;
+}
+
+/* In the libguestfs API, modes returned by lstat and friends are
+ * defined to contain Linux ABI values. However since the "current
+ * operating system" might not be Linux, we have to hard-code those
+ * numbers here.
+ */
+int
+is_reg (int64_t mode)
+{
+ return (mode & 0170000) == 0100000;
+}
+
+int
+is_dir (int64_t mode)
+{
+ return (mode & 0170000) == 0040000;
+}
+
+int
+is_chr (int64_t mode)
+{
+ return (mode & 0170000) == 0020000;
+}
+
+int
+is_blk (int64_t mode)
+{
+ return (mode & 0170000) == 0060000;
+}
+
+int
+is_fifo (int64_t mode)
+{
+ return (mode & 0170000) == 0010000;
+}
+
+/* symbolic link */
+int
+is_lnk (int64_t mode)
+{
+ return (mode & 0170000) == 0120000;
+}
+
+int
+is_sock (int64_t mode)
+{
+ return (mode & 0170000) == 0140000;
+}
--- /dev/null
+/* virt-ls visitor function
+ * Copyright (C) 2010-2014 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef VISIT_H
+#define VISIT_H
+
+typedef int (*visitor_function) (const char *dir, const char *name, const struct guestfs_statns *stat, const struct guestfs_xattr_list *xattrs, void *opaque);
+
+extern int visit (guestfs_h *g, const char *dir, visitor_function f, void *opaque);
+
+extern char *full_path (const char *dir, const char *name);
+
+extern int is_reg (int64_t mode);
+extern int is_dir (int64_t mode);
+extern int is_chr (int64_t mode);
+extern int is_blk (int64_t mode);
+extern int is_fifo (int64_t mode);
+extern int is_lnk (int64_t mode);
+extern int is_sock (int64_t mode);
+
+#endif /* VISIT_H */
git.annexia.org / virt-bmap.git / commitdiff