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Re: [Qemu-devel] [RFC PATCH 03/10] qemu-ga: Add an configure option to s


From: mdroth
Subject: Re: [Qemu-devel] [RFC PATCH 03/10] qemu-ga: Add an configure option to specify path to Windows VSS SDK
Date: Thu, 14 Feb 2013 18:47:53 -0600
User-agent: Mutt/1.5.21 (2010-09-15)

On Thu, Feb 14, 2013 at 03:10:39PM +0900, Tomoki Sekiyama wrote:
> To enable VSS support in qemu-ga for Windows, header files included in
> VSS SDK is required.
> The VSS support is enabled when the option like below:
>   ./configure --with-vss-sdk="/pass/to/VSS SDK"
> 
> VSS SDK is available from:
>   http://www.microsoft.com/en-us/download/details.aspx?id=23490
> 
> To cross-compilie using mingw32 for Linux, you need to setup the SDK on
> Windows environments to extract headers. You can also use wine to run the
> setup of SDK on Linux etc.
> 
> Signed-off-by: Tomoki Sekiyama <address@hidden>
> ---
>  .gitignore |    1 +
>  Makefile   |    1 +
>  configure  |   41 +++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 43 insertions(+)
> 
> diff --git a/.gitignore b/.gitignore
> index 53fe9c3..3f450e8 100644
> --- a/.gitignore
> +++ b/.gitignore
> @@ -77,6 +77,7 @@ fsdev/virtfs-proxy-helper.pod
>  *.la
>  *.pc
>  .libs
> +.sdk
>  *.swp
>  *.orig
>  .pc
> diff --git a/Makefile b/Makefile
> index 0d9099a..fab664f 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -252,6 +252,7 @@ distclean: clean
>       for d in $(TARGET_DIRS); do \
>       rm -rf $$d || exit 1 ; \
>          done
> +     rm -Rf .sdk
>       if test -f pixman/config.log; then make -C pixman distclean; fi
> 
>  KEYMAPS=da     en-gb  et  fr     fr-ch  is  lt  modifiers  no  pt-br  sv \
> diff --git a/configure b/configure
> index e279263..da49c52 100755
> --- a/configure
> +++ b/configure
> @@ -220,6 +220,8 @@ usb_redir=""
>  opengl=""
>  zlib="yes"
>  guest_agent="yes"
> +guest_agent_with_vss="no"
> +vss_win32_sdk=""
>  want_tools="yes"
>  libiscsi=""
>  coroutine=""
> @@ -884,6 +886,8 @@ for opt do
>    ;;
>    --disable-guest-agent) guest_agent="no"
>    ;;
> +  --with-vss-sdk=*) vss_win32_sdk="$optarg"
> +  ;;
>    --enable-tools) want_tools="yes"
>    ;;
>    --disable-tools) want_tools="no"
> @@ -1142,6 +1146,7 @@ echo "  --disable-usb-redir      disable usb network 
> redirection support"
>  echo "  --enable-usb-redir       enable usb network redirection support"
>  echo "  --disable-guest-agent    disable building of the QEMU Guest Agent"
>  echo "  --enable-guest-agent     enable building of the QEMU Guest Agent"
> +echo "  --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest 
> Agent"
>  echo "  --disable-seccomp        disable seccomp support"
>  echo "  --enable-seccomp         enables seccomp support"
>  echo "  --with-coroutine=BACKEND coroutine backend. Supported options:"
> @@ -2897,6 +2902,38 @@ if test "$usb_redir" != "no" ; then
>  fi
> 
>  ##########################################
> +# check if we have VSS SDK headers for win
> +
> +if test "$mingw32" = "yes" -a "$guest_agent" = "yes" ; then
> +  case "$vss_win32_sdk" in
> +    "")   vss_win32_include="" ;;
> +    *\ *) # The SDK is installed in "Program Files" by default, but we cannot
> +          # handle path with spaces. So we copy the headers into ".sdk/sdk".
> +          vss_win32_include="-I$source_path/.sdk/vss"
> +          symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
> +       ;;
> +    *)    vss_win32_include="-I$vss_win32_sdk"
> +  esac
> +  cat > $TMPC << EOF
> +#define __MIDL_user_allocate_free_DEFINED__
> +#include <inc/win2003/vss.h>
> +int main(void) { return VSS_CTX_BACKUP; }
> +EOF

Hi Tomoki,

Did you happen to run into this issue compiling the test program?

address@hidden qemu-build]$ ls ~/w/vsssdk/inc/win2003/
vdslun.h    vsbackup.h    vscoordint.idl  vsmgmt.idl  vsprov.idl
vss.idl    vsswprv.idl
vdslun.idl  vscoordint.h  vsmgmt.h        vsprov.h    vss.h
vsswprv.h  vswriter.h
address@hidden qemu-build]$ cat test.c 
#define __MIDL_user_allocate_free_DEFINED__
#include <inc/win2003/vss.h>
int main(void) { return VSS_CTX_BACKUP; }
address@hidden qemu-build]$ gcc -I ~/w/vsssdk/ -o test test.c
In file included from test.c:2:0:
/home/mdroth/w/vsssdk/inc/win2003/vss.h:25:17: fatal error: rpc.h: No
such file or directory
compilation terminated.

I can't seem to locate any mingw or microsoft package that provides that.
It's also not present anywhere on the Wine filesystem I installed the
VSS SDK to.

> +  if compile_prog "$vss_win32_include" "" ; then
> +    guest_agent_with_vss="yes"
> +    QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
> +    libs_qga="-lole32 -loleaut32 -lshlwapi -luuid -lstdc++ 
> -Wl,--enable-stdcall-fixup $libs_qga"
> +  else
> +    if test "$vss_win32_sdk" != "" ; then
> +      echo "ERROR: Please download and install Microsoft VSS SDK from"
> +      echo "ERROR: 
> http://www.microsoft.com/en-us/download/details.aspx?id=23490";
> +      feature_not_found "VSS support"
> +    fi
> +    guest_agent_with_vss="no"
> +  fi
> +fi
> +
> +##########################################
> 
>  ##########################################
>  # check if we have fdatasync
> @@ -3343,6 +3380,7 @@ echo "usb net redir     $usb_redir"
>  echo "OpenGL support    $opengl"
>  echo "libiscsi support  $libiscsi"
>  echo "build guest agent $guest_agent"
> +echo "QGA VSS support   $guest_agent_with_vss"
>  echo "seccomp support   $seccomp"
>  echo "coroutine backend $coroutine_backend"
>  echo "GlusterFS support $glusterfs"
> @@ -3404,6 +3442,9 @@ if test "$mingw32" = "yes" ; then
>    version_micro=0
>    echo 
> "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro"
>  >> $config_host_mak
>    echo 
> "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro"
>  >> $config_host_mak
> +  if test "$guest_agent_with_vss" = "yes" ; then
> +    echo "CONFIG_QGA_VSS=y" >> $config_host_mak
> +  fi
>  else
>    echo "CONFIG_POSIX=y" >> $config_host_mak
>  fi
> 



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