| Commit message (Collapse) | Author | Age | Files | Lines |
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The following 3 summary messages in the configure output
always displayed "yes" even if they were not actually
enabled.
Haskell bindings .................... yes
virt-inspector ...................... yes
virt-* tools ........................ yes
Fixed by correcting the code that tests if the automake
conditional is set.
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* hivex/hivex.c (windows_utf16_to_utf8): Avoid overflow and a
potential infloop.
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This implements FUSE filesystem support so that any libguestfs-
accessible disk image can be mounted as a local filesystem.
Note: file writes (ie. write(2) system call) is not yet implemented.
The API needs more test coverage, particularly lesser-used system
calls.
The big unresolved issue is UID/GID mapping between guest filesystem
IDs and the host. It's not easy to automate this because you need
extra details about the guest itself in order to get to its
UID->username map (eg. /etc/passwd from the guest).
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guestfs_pread lets you do partial file reads from arbitrary
places within a file. It works like the pread(2) system call.
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These three functions are very specifically designed for FUSE
support, so we can list directories efficiently. Instead of
making lots of lstat, lgetxattr and readlink calls, we can make just
three calls per directory to grab all the attributes (which we
then cache briefly).
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truncate, truncate_size: Used to truncate files to a particular
size, or to zero bytes.
mkdir_mode: Like mkdir but allows you to also specify the
initial permissions for the new directory.
utimens: Set timestamp on a file with nanosecond accuracy.
lchown: Corresponding to lchown(2) syscall (we already have chown).
The implementation is complicated by the fact that we had to
add an Int64 parameter type to the generator.
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Since this program is just an example, it shouldn't require
the Gnulib c-ctype functions.
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config.status touches make.sh each time it runs, even if the
resulting script would not change. This causes the appliance
to get rebuilt much more frequently than is necessary.
There's no way to stop configure running, but we can move the
config.status command into a Makefile rule to stop this
undesirable behaviour.
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Somehow an 'indent' string crept in there, so it was printing:
<char><indent><char><indent><char>...
instead of:
<char><char><char>...
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rstructs_used wasn't correctly generating code for guestfish
because guestfish doesn't make all functions visible. Since the
calculation of rstructs_used was over all functions (including
ones not available in guestfish) it could have generated
unnecessary functions.
In fact this error didn't affect us before - but I discovered
it when I added some extra struct-returning functions (future
commit).
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Ignore -Wunsafe-loop-optimizations, same as in the top level
configure file.
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In hivex/: This mini-library allows us to extract Windows
Registry binary files ("hives").
There are also two tools: hivexml converts a hive to a
self-describing XML format. hivexget can be used to extract
single subkeys from a hive.
New tool: virt-win-reg. This is a wrapper around the library
functionality allowing you to pull out data from the registries
of Windows guests.
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Add a win: prefix for path arguments in guestfish:
><fs> file win:c:\windows\system32\config\system.log
MS Windows registry file, NT/2000 or above
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Uses Gnulib implementation of openat which should be portable.
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This function handles an annoyance/peculiarity of the Linux
NTFS 3g driver, which is that it exports NTFS filesystems with
names case sensitive, even though under Windows they would be
case insensitive.
This causes problems because the location of (eg.) c:\windows
might appear as /windows or /WINDOWS (etc) depending on the
inconsequential details of how it was originally created.
Example of this problem on a real Windows guest:
><fs> file /windows/system32/config/system.log
libguestfs: error: file: access: /windows/system32/config/system.log: No such file or directory
><fs> case-sensitive-path /windows/system32/config/system.log
/WINDOWS/system32/config/system.LOG
><fs> file /WINDOWS/system32/config/system.LOG
MS Windows registry file, NT/2000 or above
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If start_udev fails for any reason, notice and fall through to manual /dev
creation.
Patch from Charles Duffy <charles@dyfis.net>
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find0 is more scalable than find. virt-ls will no longer
crash if asked to recursively list / on a Linux guest.
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This adds a new API call guestfs_find0, which is like guestfs_find
but mainly doesn't suffer from the protocol limit of the earlier
command. The earlier command is not deprecated because it is
still very useful.
guestfs_find0 uses a FileOut parameter and writes the results to
an external file. The filenames in the output are separated by
ASCII NUL characters (so a bit like "find -print0").
There is also the addition of a regression test for this command.
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guestfs_find has to send the complete list of files in a single
protocol message (hence, limited to 2-4 MB). Unfortunately on
a typical Linux guest, guestfs_find ("/") will exceed this limit
resulting in an error.
Therefore we should add an unlimited version of this call in a
future commit. This commit just documents the current limit.
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This tool makes available the functionality of "ls", "ll", and "find"
in a slightly simpler to use form.
Examples:
virt-ls -l myguest /tmp
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This adds a new tool call virt-tar which is a general purpose
archive and uploading tool. It doesn't add any functionality
which wasn't previously possible using guestfish, but makes it
simpler to access for some users.
Examples:
virt-tar -zx myguest /home home.tar.gz
virt-tar -zu myguest uploadstuff.tar.gz /tmp
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Add prominent warnings to the man pages about how it is dangerous
to run these tools against live guests.
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This moves the tool programs into a single directory:
cat/* -> tools/virt-cat
df/* -> tools/virt-df
edit/* -> tools/virt-edit
rescue/* -> tools/virt-rescue
This in itself simplifies the build process because we only need
one Makefile and one copy of 'run-locally'.
'run-*-locally' has become just 'run-locally' and takes an extra
parameter which is the name of the tool, eg:
run-locally cat [virt-cat params...]
virt-inspector stays in its own directory, because this contains
more than just a single Perl script.
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