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qemu-ga: Install Windows VSS provider on `qemu-ga -s install'

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Register QGA VSS provider library into Windows when qemu-ga is installed as
Windows service ('-s install' option). It is deregistered when the service
is uninstalled ('-s uninstall' option).

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Tomoki Sekiyama 2013-08-07 11:40:32 -04:00 committed by Michael Roth
parent 64c0031740
commit f311f2c20a
3 changed files with 37 additions and 1 deletions
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10
qga/main.c
View file

@ -34,6 +34,7 @@
#include "qemu/bswap.h"
#ifdef _WIN32
#include "qga/service-win32.h"
#include "qga/vss-win32.h"
#include <windows.h>
#endif
#ifdef __linux__
@ -1031,8 +1032,15 @@ int main(int argc, char **argv)
fixed_state_dir = (state_dir == dfl_pathnames.state_dir) ?
NULL :
state_dir;
return ga_install_service(path, log_filepath, fixed_state_dir);
if (ga_install_vss_provider()) {
return EXIT_FAILURE;
}
if (ga_install_service(path, log_filepath, fixed_state_dir)) {
return EXIT_FAILURE;
}
return 0;
} else if (strcmp(service, "uninstall") == 0) {
ga_uninstall_vss_provider();
return ga_uninstall_service();
} else {
printf("Unknown service command.\n");

25
qga/vss-win32.c
View file

@ -119,6 +119,31 @@ bool vss_initialized(void)
return !!provider_lib;
}
int ga_install_vss_provider(void)
{
HRESULT hr;
if (!vss_init(false)) {
fprintf(stderr, "Installation of VSS provider is skipped. "
"fsfreeze will be disabled.\n");
return 0;
}
hr = call_vss_provider_func("COMRegister");
vss_deinit(false);
return SUCCEEDED(hr) ? 0 : EXIT_FAILURE;
}
void ga_uninstall_vss_provider(void)
{
if (!vss_init(false)) {
fprintf(stderr, "Removal of VSS provider is skipped.\n");
return;
}
call_vss_provider_func("COMUnregister");
vss_deinit(false);
}
/* Call VSS requester and freeze/thaw filesystems and applications */
void qga_vss_fsfreeze(int *nr_volume, Error **err, bool freeze)
{

3
qga/vss-win32.h
View file

@ -19,6 +19,9 @@ bool vss_init(bool init_requester);
void vss_deinit(bool deinit_requester);
bool vss_initialized(void);
int ga_install_vss_provider(void);
void ga_uninstall_vss_provider(void);
void qga_vss_fsfreeze(int *nr_volume, Error **err, bool freeze);
#endif