2 * Copyright (c) 2016 Microsoft Corp.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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9 * notice unmodified, this list of conditions, and the following
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31 #include <sys/ioccom.h>
32 #define FS_VSS_DEV_NAME "hv_fsvss_dev"
33 #define APP_VSS_DEV_NAME "hv_appvss_dev"
35 #define VSS_DEV(VSS) "/dev/"VSS
37 #define VSS_SUCCESS 0x00000000
38 #define VSS_FAIL 0x00000001
48 struct hv_vss_opt_msg {
49 uint32_t opt; /* operation */
50 uint32_t status; /* 0 for success, 1 for error */
51 uint64_t msgid; /* an ID used to identify the transaction */
52 uint8_t reserved[48]; /* reserved values are all zeroes */
54 #define IOCHVVSSREAD _IOR('v', 2, struct hv_vss_opt_msg)
55 #define IOCHVVSSWRITE _IOW('v', 3, struct hv_vss_opt_msg)