hv_snapshot.h (2029B) - Raw
1 /*- 2 * Copyright (c) 2016 Microsoft Corp. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _VSS_H 28 #define _VSS_H 29 #include <sys/ioccom.h> 30 #define FS_VSS_DEV_NAME "hv_fsvss_dev" 31 #define APP_VSS_DEV_NAME "hv_appvss_dev" 32 33 #define VSS_DEV(VSS) "/dev/"VSS 34 35 #define VSS_SUCCESS 0x00000000 36 #define VSS_FAIL 0x00000001 37 38 enum hv_vss_op_t { 39 HV_VSS_NONE = 0, 40 HV_VSS_CHECK, 41 HV_VSS_FREEZE, 42 HV_VSS_THAW, 43 HV_VSS_COUNT 44 }; 45 46 struct hv_vss_opt_msg { 47 uint32_t opt; /* operation */ 48 uint32_t status; /* 0 for success, 1 for error */ 49 uint64_t msgid; /* an ID used to identify the transaction */ 50 uint8_t reserved[48]; /* reserved values are all zeroes */ 51 }; 52 #define IOCHVVSSREAD _IOR('v', 2, struct hv_vss_opt_msg) 53 #define IOCHVVSSWRITE _IOW('v', 3, struct hv_vss_opt_msg) 54 #endif