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// Copyright (c) Veeam Software Group GmbH
#pragma once
#include <linux/types.h>
#define SUCCESS 0
#define MAX_TRACKING_DEVICE_COUNT 256
#define VEEAM_SNAP_MODULE_NAME "veeamsnap"
#define VEEAM_SNAP_IMAGE_NAME "veeamimage"
#define VEEAM_SNAP 'V'
#pragma pack(push,1)
//////////////////////////////////////////////////////////////////////////
// version
#define VEEAMSNAP_COMPATIBILITY_SNAPSTORE 0x0000000000000001ull
#define VEEAMSNAP_COMPATIBILITY_BTRFS 0x0000000000000002ull
#define VEEAMSNAP_COMPATIBILITY_MULTIDEV 0x0000000000000004ull
#define VEEAMSNAP_COMPATIBILITY_KENTRY 0x0000000000000008ull
//multidev
struct ioctl_compatibility_flags_s {
unsigned long long flags;
};
#define IOCTL_COMPATIBILITY_FLAGS _IOW(VEEAM_SNAP, 0, struct ioctl_compatibility_flags_s)
struct ioctl_getversion_s {
unsigned short major;
unsigned short minor;
unsigned short revision;
unsigned short build;
};
#define IOCTL_GETVERSION _IOW(VEEAM_SNAP, 1, struct ioctl_getversion_s)
//////////////////////////////////////////////////////////////////////////
// tracking
struct ioctl_dev_id_s{
int major;
int minor;
};
#define IOCTL_TRACKING_ADD _IOW(VEEAM_SNAP, 2, struct ioctl_dev_id_s)
#define IOCTL_TRACKING_REMOVE _IOW(VEEAM_SNAP, 3, struct ioctl_dev_id_s)
struct cbt_info_s{
struct ioctl_dev_id_s dev_id;
unsigned long long dev_capacity;
unsigned int cbt_map_size;
unsigned char snap_number;
unsigned char generationId[16];
};
struct ioctl_tracking_collect_s{
unsigned int count;
union{
struct cbt_info_s* p_cbt_info;
unsigned long long ull_cbt_info;
};
};
#define IOCTL_TRACKING_COLLECT _IOW(VEEAM_SNAP, 4, struct ioctl_tracking_collect_s)
#define IOCTL_TRACKING_BLOCK_SIZE _IOW(VEEAM_SNAP, 5, unsigned int)
struct ioctl_tracking_read_cbt_bitmap_s{
struct ioctl_dev_id_s dev_id;
unsigned int offset;
unsigned int length;
union{
unsigned char* buff;
unsigned long long ull_buff;
};
};
#define IOCTL_TRACKING_READ_CBT_BITMAP _IOR(VEEAM_SNAP, 6, struct ioctl_tracking_read_cbt_bitmap_s)
struct block_range_s
{
unsigned long long ofs;//sectors
unsigned long long cnt;//sectors
};
struct ioctl_tracking_mark_dirty_blocks_s{
struct ioctl_dev_id_s image_dev_id;
unsigned int count;
union{
struct block_range_s* p_dirty_blocks;
unsigned long long ull_dirty_blocks;
};
};
#define IOCTL_TRACKING_MARK_DIRTY_BLOCKS _IOR(VEEAM_SNAP, 7, struct ioctl_tracking_mark_dirty_blocks_s)
#define KERNEL_ENTRY_NAME_MAX 255
#define KERNEL_ENTRY_BASE_FUNCTION __request_module
#define KERNEL_ENTRY_BASE_NAME "__request_module"
struct kernel_entry_s {
__u64 addr;
const char* name;
};
struct ioctl_set_kernel_entries_s {
__u32 count;
struct kernel_entry_s* entries;
};
#define IOCTL_SET_KERNEL_ENTRIES _IOW(VEEAM_SNAP, 0x8, struct ioctl_set_kernel_entries_s)
struct ioctl_get_unresolved_kernel_entries_s {
char buf[4096];
};
#define IOCTL_GET_UNRESOLVED_KERNEL_ENTRIES _IOR(VEEAM_SNAP, 0x9, struct ioctl_get_unresolved_kernel_entries_s)
//////////////////////////////////////////////////////////////////////////
// snapshot
struct ioctl_snapshot_create_s{
unsigned long long snapshot_id;
unsigned int count;
union{
struct ioctl_dev_id_s* p_dev_id;
unsigned long long ull_dev_id;
};
};
#define IOCTL_SNAPSHOT_CREATE _IOW(VEEAM_SNAP, 0x10, struct ioctl_snapshot_create_s)
#define IOCTL_SNAPSHOT_DESTROY _IOR(VEEAM_SNAP, 0x11, unsigned long long )
struct ioctl_snapshot_errno_s{
struct ioctl_dev_id_s dev_id;
int err_code;
};
#define IOCTL_SNAPSHOT_ERRNO _IOW(VEEAM_SNAP, 0x12, struct ioctl_snapshot_errno_s)
struct ioctl_range_s{
unsigned long long left;
unsigned long long right;
};
//////////////////////////////////////////////////////////////////////////
// snapshotdata - not supported
/*
struct ioctl_snapshotdata_memory_s
{
unsigned char id[16];
unsigned long long snapshotdatasize;
};
#define IOCTL_SNAPSHOTDATA_MEMORY _IOR(VEEAM_SNAP, 0x20, struct ioctl_snapshotdata_memory_s)
struct ioctl_snapshotdata_clean_s
{
unsigned char id[16];
};
#define IOCTL_SNAPSHOTDATA_CLEAN _IOR(VEEAM_SNAP, 0x21, struct ioctl_snapshotdata_clean_s)
struct ioctl_snapshotdata_common_s{
unsigned char id[16];
struct ioctl_dev_id_s dev_id_host_data;
unsigned int range_count;
union{
struct ioctl_range_s* ranges;
unsigned long long ull_ranges;
};
};
#define IOCTL_SNAPSHOTDATA_COMMON _IOR(VEEAM_SNAP, 0x22, struct ioctl_snapshotdata_common_s)
struct ioctl_snapshotdata_add_dev_s{
unsigned char id[16];
struct ioctl_dev_id_s dev_id;
};
#define IOCTL_SNAPSHOTDATA_ADD_DEV _IOR(VEEAM_SNAP, 0x23, struct ioctl_snapshotdata_add_dev_s)
*/
//////////////////////////////////////////////////////////////////////////
// snapstore
struct ioctl_snapstore_create_s
{
unsigned char id[16];
struct ioctl_dev_id_s snapstore_dev_id;
unsigned int count;
union{
struct ioctl_dev_id_s* p_dev_id;
unsigned long long ull_dev_id;
};
};
#define IOCTL_SNAPSTORE_CREATE _IOR(VEEAM_SNAP, 0x28, struct ioctl_snapstore_create_s)
struct ioctl_snapstore_file_add_s
{
unsigned char id[16];
unsigned int range_count;
union{
struct ioctl_range_s* ranges;
unsigned long long ull_ranges;
};
};
#define IOCTL_SNAPSTORE_FILE _IOR(VEEAM_SNAP, 0x29, struct ioctl_snapstore_file_add_s)
struct ioctl_snapstore_memory_limit_s
{
unsigned char id[16];
unsigned long long size;
};
#define IOCTL_SNAPSTORE_MEMORY _IOR(VEEAM_SNAP, 0x2A, struct ioctl_snapstore_memory_limit_s)
struct ioctl_snapstore_cleanup_s
{
unsigned char id[16];
unsigned long long filled_bytes;
};
#define IOCTL_SNAPSTORE_CLEANUP _IOW(VEEAM_SNAP, 0x2B, struct ioctl_snapstore_cleanup_s)
struct ioctl_snapstore_file_add_multidev_s
{
unsigned char id[16];
struct ioctl_dev_id_s dev_id;
unsigned int range_count;
union{
struct ioctl_range_s* ranges;
unsigned long long ull_ranges;
};
};
#define IOCTL_SNAPSTORE_FILE_MULTIDEV _IOR(VEEAM_SNAP, 0x2C, struct ioctl_snapstore_file_add_multidev_s)
//////////////////////////////////////////////////////////////////////////
// collect snapshot images
struct image_info_s{
struct ioctl_dev_id_s original_dev_id;
struct ioctl_dev_id_s snapshot_dev_id;
};
struct ioctl_collect_shapshot_images_s{
int count; //
union{
struct image_info_s* p_image_info;
unsigned long long ull_image_info;
};
};
#define IOCTL_COLLECT_SNAPSHOT_IMAGES _IOW(VEEAM_SNAP, 0x30, struct ioctl_collect_shapshot_images_s)
//////////////////////////////////////////////////////////////////////////
// collect snapshot data location
struct ioctl_collect_snapshotdata_location_start_s{
struct ioctl_dev_id_s dev_id;
unsigned int magic_length;
union{
void* magic_buff;
unsigned long long ull_buff;
};
};
#define IOCTL_COLLECT_SNAPSHOTDATA_LOCATION_START _IOW(VEEAM_SNAP, 0x40, struct ioctl_collect_snapshotdata_location_start_s )
struct ioctl_collect_snapshotdata_location_get_s{
struct ioctl_dev_id_s dev_id;
unsigned int range_count;
union{
struct ioctl_range_s* ranges;
unsigned long long ull_ranges;
};
};
#define IOCTL_COLLECT_SNAPSHOTDATA_LOCATION_GET _IOW(VEEAM_SNAP, 0x41, struct ioctl_collect_snapshotdata_location_get_s)
struct ioctl_collect_snapshotdata_location_complete_s{
struct ioctl_dev_id_s dev_id;
};
#define IOCTL_COLLECT_SNAPSHOTDATA_LOCATION_COMPLETE _IOR(VEEAM_SNAP, 0x42, struct ioctl_collect_snapshotdata_location_complete_s )
//////////////////////////////////////////////////////////////////////////
// persistent CBT data parameter
struct ioctl_persistentcbt_data_s
{
unsigned int size;
const char* parameter;
};
#define IOCTL_PERSISTENTCBT_DATA _IOR(VEEAM_SNAP, 0x48, struct ioctl_persistentcbt_data_s )
//////////////////////////////////////////////////////////////////////////
// debug and support
#define IOCTL_PRINTSTATE _IO(VEEAM_SNAP, 0x80)
#ifdef SNAPIMAGE_TRACER
#define VEEAM_IMAGE 0x69730000 // 'iV' <-> "Vi"
//////////////////////////////////////////////////////////////////////////
// io control for snapshot image
typedef struct trace_record_s
{
unsigned long long time;
unsigned long long sector_ofs;
unsigned int size;
int direction;
}trace_record_t;
struct ioctl_image_trace_read_s{
unsigned int capacity;
unsigned int count;
trace_record_t* records;
};
#define IOCTL_IMAGE_TRACE_READ _IOW(VEEAM_IMAGE, 0x81, struct ioctl_image_trace_read_s)
#endif
#pragma pack(pop)
// commands for character device interface
#define VEEAMSNAP_CHARCMD_UNDEFINED 0x00
#define VEEAMSNAP_CHARCMD_ACKNOWLEDGE 0x01
#define VEEAMSNAP_CHARCMD_INVALID 0xFF
// to module commands
#define VEEAMSNAP_CHARCMD_INITIATE 0x21
#define VEEAMSNAP_CHARCMD_NEXT_PORTION 0x22
#define VEEAMSNAP_CHARCMD_NEXT_PORTION_MULTIDEV 0x23
// from module commands
#define VEEAMSNAP_CHARCMD_HALFFILL 0x41
#define VEEAMSNAP_CHARCMD_OVERFLOW 0x42
#define VEEAMSNAP_CHARCMD_TERMINATE 0x43
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