From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50416) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZCKh6-0001d7-PX for qemu-devel@nongnu.org; Tue, 07 Jul 2015 00:41:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZCKh5-0006ZC-J0 for qemu-devel@nongnu.org; Tue, 07 Jul 2015 00:41:20 -0400 Received: from mail-oi0-x22c.google.com ([2607:f8b0:4003:c06::22c]:33786) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZCKh5-0006Z6-E0 for qemu-devel@nongnu.org; Tue, 07 Jul 2015 00:41:19 -0400 Received: by oiyy130 with SMTP id y130so133383338oiy.0 for ; Mon, 06 Jul 2015 21:41:19 -0700 (PDT) Sender: fluxion From: Michael Roth Date: Mon, 6 Jul 2015 23:40:18 -0500 Message-Id: <1436244020-27822-9-git-send-email-mdroth@linux.vnet.ibm.com> In-Reply-To: <1436244020-27822-1-git-send-email-mdroth@linux.vnet.ibm.com> References: <1436244020-27822-1-git-send-email-mdroth@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH 08/10] qga: added mountpoint and filesystem type for single volume List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: "Denis V. Lunev" , peter.maydell@linaro.org, Olga Krishtal From: Olga Krishtal We should use GetVolumeXXX api to work with volumes. This will help us to resolve the situation with volumes without drive letter, i.e. when the volume is mounted as a folder. Such volume is called mounted folder. This volume is a regular mounted volume from all other points of view. The information about non mounted volume is reported as System Reserved. This volume is not mounted and thus it is not writable. GuestDiskAddressList API is not used because operations are performed with volumes but no with disks. This means that spanned disk will be counted and handled as a single volume. It is worth mentioning that the information about every disk in the volume can be queried via IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS. Signed-off-by: Olga Krishtal Signed-off-by: Denis V. Lunev CC: Eric Blake CC: Michael Roth Signed-off-by: Michael Roth --- qga/commands-win32.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 53 insertions(+), 1 deletion(-) diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 3f3a144..60d9770 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -388,6 +388,54 @@ static void guest_file_init(void) QTAILQ_INIT(&guest_file_state.filehandles); } +static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) +{ + DWORD info_size; + char mnt, *mnt_point; + char fs_name[32]; + char vol_info[MAX_PATH+1]; + size_t len; + GuestFilesystemInfo *fs = NULL; + + GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); + if (GetLastError() != ERROR_MORE_DATA) { + error_setg_win32(errp, GetLastError(), "failed to get volume name"); + return NULL; + } + + mnt_point = g_malloc(info_size + 1); + if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, + &info_size)) { + error_setg_win32(errp, GetLastError(), "failed to get volume name"); + goto free; + } + + len = strlen(mnt_point); + mnt_point[len] = '\\'; + mnt_point[len+1] = 0; + if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL, + NULL, (LPSTR)&fs_name, sizeof(fs_name))) { + if (GetLastError() != ERROR_NOT_READY) { + error_setg_win32(errp, GetLastError(), "failed to get volume info"); + } + goto free; + } + + fs_name[sizeof(fs_name) - 1] = 0; + fs = g_malloc(sizeof(*fs)); + fs->name = g_strdup(guid); + if (len == 0) { + fs->mountpoint = g_strdup("System Reserved"); + } else { + fs->mountpoint = g_strndup(mnt_point, len); + } + fs->type = g_strdup(fs_name); + fs->disk = NULL; +free: + g_free(mnt_point); + return fs; +} + GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) { HANDLE vol_h; @@ -401,8 +449,12 @@ GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) } do { + GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp); + if (info == NULL) { + continue; + } new = g_malloc(sizeof(*ret)); - new->value = build_guest_fsinfo(guid, errp); + new->value = info; new->next = ret; ret = new; } while (FindNextVolume(vol_h, guid, sizeof(guid))); -- 1.9.1