1e2be04c7SGreg Kroah-Hartman /* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */ 2607ca46eSDavid Howells /* 3607ca46eSDavid Howells * Copyright (C) 2001 - 2003 Sistina Software (UK) Limited. 4607ca46eSDavid Howells * Copyright (C) 2004 - 2009 Red Hat, Inc. All rights reserved. 5607ca46eSDavid Howells * 6607ca46eSDavid Howells * This file is released under the LGPL. 7607ca46eSDavid Howells */ 8607ca46eSDavid Howells 9607ca46eSDavid Howells #ifndef _LINUX_DM_IOCTL_V4_H 10607ca46eSDavid Howells #define _LINUX_DM_IOCTL_V4_H 11607ca46eSDavid Howells 12607ca46eSDavid Howells #include <linux/types.h> 13607ca46eSDavid Howells 14607ca46eSDavid Howells #define DM_DIR "mapper" /* Slashes not supported */ 15607ca46eSDavid Howells #define DM_CONTROL_NODE "control" 16607ca46eSDavid Howells #define DM_MAX_TYPE_NAME 16 17607ca46eSDavid Howells #define DM_NAME_LEN 128 18607ca46eSDavid Howells #define DM_UUID_LEN 129 19607ca46eSDavid Howells 20607ca46eSDavid Howells /* 21607ca46eSDavid Howells * A traditional ioctl interface for the device mapper. 22607ca46eSDavid Howells * 23607ca46eSDavid Howells * Each device can have two tables associated with it, an 24607ca46eSDavid Howells * 'active' table which is the one currently used by io passing 25607ca46eSDavid Howells * through the device, and an 'inactive' one which is a table 26607ca46eSDavid Howells * that is being prepared as a replacement for the 'active' one. 27607ca46eSDavid Howells * 28607ca46eSDavid Howells * DM_VERSION: 29607ca46eSDavid Howells * Just get the version information for the ioctl interface. 30607ca46eSDavid Howells * 31607ca46eSDavid Howells * DM_REMOVE_ALL: 32607ca46eSDavid Howells * Remove all dm devices, destroy all tables. Only really used 33607ca46eSDavid Howells * for debug. 34607ca46eSDavid Howells * 35607ca46eSDavid Howells * DM_LIST_DEVICES: 36607ca46eSDavid Howells * Get a list of all the dm device names. 37607ca46eSDavid Howells * 38607ca46eSDavid Howells * DM_DEV_CREATE: 39607ca46eSDavid Howells * Create a new device, neither the 'active' or 'inactive' table 40607ca46eSDavid Howells * slots will be filled. The device will be in suspended state 41607ca46eSDavid Howells * after creation, however any io to the device will get errored 42607ca46eSDavid Howells * since it will be out-of-bounds. 43607ca46eSDavid Howells * 44607ca46eSDavid Howells * DM_DEV_REMOVE: 45607ca46eSDavid Howells * Remove a device, destroy any tables. 46607ca46eSDavid Howells * 47607ca46eSDavid Howells * DM_DEV_RENAME: 48607ca46eSDavid Howells * Rename a device or set its uuid if none was previously supplied. 49607ca46eSDavid Howells * 50607ca46eSDavid Howells * DM_SUSPEND: 51607ca46eSDavid Howells * This performs both suspend and resume, depending which flag is 52607ca46eSDavid Howells * passed in. 53607ca46eSDavid Howells * Suspend: This command will not return until all pending io to 54607ca46eSDavid Howells * the device has completed. Further io will be deferred until 55607ca46eSDavid Howells * the device is resumed. 56607ca46eSDavid Howells * Resume: It is no longer an error to issue this command on an 57607ca46eSDavid Howells * unsuspended device. If a table is present in the 'inactive' 58607ca46eSDavid Howells * slot, it will be moved to the active slot, then the old table 59607ca46eSDavid Howells * from the active slot will be _destroyed_. Finally the device 60607ca46eSDavid Howells * is resumed. 61607ca46eSDavid Howells * 62607ca46eSDavid Howells * DM_DEV_STATUS: 63607ca46eSDavid Howells * Retrieves the status for the table in the 'active' slot. 64607ca46eSDavid Howells * 65607ca46eSDavid Howells * DM_DEV_WAIT: 66607ca46eSDavid Howells * Wait for a significant event to occur to the device. This 67607ca46eSDavid Howells * could either be caused by an event triggered by one of the 68607ca46eSDavid Howells * targets of the table in the 'active' slot, or a table change. 69607ca46eSDavid Howells * 70607ca46eSDavid Howells * DM_TABLE_LOAD: 71607ca46eSDavid Howells * Load a table into the 'inactive' slot for the device. The 72607ca46eSDavid Howells * device does _not_ need to be suspended prior to this command. 73607ca46eSDavid Howells * 74607ca46eSDavid Howells * DM_TABLE_CLEAR: 75607ca46eSDavid Howells * Destroy any table in the 'inactive' slot (ie. abort). 76607ca46eSDavid Howells * 77607ca46eSDavid Howells * DM_TABLE_DEPS: 78607ca46eSDavid Howells * Return a set of device dependencies for the 'active' table. 79607ca46eSDavid Howells * 80607ca46eSDavid Howells * DM_TABLE_STATUS: 81607ca46eSDavid Howells * Return the targets status for the 'active' table. 82607ca46eSDavid Howells * 83607ca46eSDavid Howells * DM_TARGET_MSG: 84607ca46eSDavid Howells * Pass a message string to the target at a specific offset of a device. 85607ca46eSDavid Howells * 86607ca46eSDavid Howells * DM_DEV_SET_GEOMETRY: 87607ca46eSDavid Howells * Set the geometry of a device by passing in a string in this format: 88607ca46eSDavid Howells * 89607ca46eSDavid Howells * "cylinders heads sectors_per_track start_sector" 90607ca46eSDavid Howells * 91607ca46eSDavid Howells * Beware that CHS geometry is nearly obsolete and only provided 92607ca46eSDavid Howells * for compatibility with dm devices that can be booted by a PC 93607ca46eSDavid Howells * BIOS. See struct hd_geometry for range limits. Also note that 94607ca46eSDavid Howells * the geometry is erased if the device size changes. 95607ca46eSDavid Howells */ 96607ca46eSDavid Howells 97607ca46eSDavid Howells /* 98607ca46eSDavid Howells * All ioctl arguments consist of a single chunk of memory, with 99607ca46eSDavid Howells * this structure at the start. If a uuid is specified any 100607ca46eSDavid Howells * lookup (eg. for a DM_INFO) will be done on that, *not* the 101607ca46eSDavid Howells * name. 102607ca46eSDavid Howells */ 103607ca46eSDavid Howells struct dm_ioctl { 104607ca46eSDavid Howells /* 105607ca46eSDavid Howells * The version number is made up of three parts: 106607ca46eSDavid Howells * major - no backward or forward compatibility, 107607ca46eSDavid Howells * minor - only backwards compatible, 108607ca46eSDavid Howells * patch - both backwards and forwards compatible. 109607ca46eSDavid Howells * 110607ca46eSDavid Howells * All clients of the ioctl interface should fill in the 111607ca46eSDavid Howells * version number of the interface that they were 112607ca46eSDavid Howells * compiled with. 113607ca46eSDavid Howells * 114607ca46eSDavid Howells * All recognised ioctl commands (ie. those that don't 115607ca46eSDavid Howells * return -ENOTTY) fill out this field, even if the 116607ca46eSDavid Howells * command failed. 117607ca46eSDavid Howells */ 118607ca46eSDavid Howells __u32 version[3]; /* in/out */ 119607ca46eSDavid Howells __u32 data_size; /* total size of data passed in 120607ca46eSDavid Howells * including this struct */ 121607ca46eSDavid Howells 122607ca46eSDavid Howells __u32 data_start; /* offset to start of data 123607ca46eSDavid Howells * relative to start of this struct */ 124607ca46eSDavid Howells 125607ca46eSDavid Howells __u32 target_count; /* in/out */ 126607ca46eSDavid Howells __s32 open_count; /* out */ 127607ca46eSDavid Howells __u32 flags; /* in/out */ 128607ca46eSDavid Howells 129607ca46eSDavid Howells /* 130607ca46eSDavid Howells * event_nr holds either the event number (input and output) or the 131607ca46eSDavid Howells * udev cookie value (input only). 132607ca46eSDavid Howells * The DM_DEV_WAIT ioctl takes an event number as input. 133607ca46eSDavid Howells * The DM_SUSPEND, DM_DEV_REMOVE and DM_DEV_RENAME ioctls 134607ca46eSDavid Howells * use the field as a cookie to return in the DM_COOKIE 135607ca46eSDavid Howells * variable with the uevents they issue. 136607ca46eSDavid Howells * For output, the ioctls return the event number, not the cookie. 137607ca46eSDavid Howells */ 138607ca46eSDavid Howells __u32 event_nr; /* in/out */ 139607ca46eSDavid Howells __u32 padding; 140607ca46eSDavid Howells 141607ca46eSDavid Howells __u64 dev; /* in/out */ 142607ca46eSDavid Howells 143607ca46eSDavid Howells char name[DM_NAME_LEN]; /* device name */ 144607ca46eSDavid Howells char uuid[DM_UUID_LEN]; /* unique identifier for 145607ca46eSDavid Howells * the block device */ 146607ca46eSDavid Howells char data[7]; /* padding or data */ 147607ca46eSDavid Howells }; 148607ca46eSDavid Howells 149607ca46eSDavid Howells /* 150607ca46eSDavid Howells * Used to specify tables. These structures appear after the 151607ca46eSDavid Howells * dm_ioctl. 152607ca46eSDavid Howells */ 153607ca46eSDavid Howells struct dm_target_spec { 154607ca46eSDavid Howells __u64 sector_start; 155607ca46eSDavid Howells __u64 length; 156607ca46eSDavid Howells __s32 status; /* used when reading from kernel only */ 157607ca46eSDavid Howells 158607ca46eSDavid Howells /* 159607ca46eSDavid Howells * Location of the next dm_target_spec. 160607ca46eSDavid Howells * - When specifying targets on a DM_TABLE_LOAD command, this value is 161607ca46eSDavid Howells * the number of bytes from the start of the "current" dm_target_spec 162607ca46eSDavid Howells * to the start of the "next" dm_target_spec. 163607ca46eSDavid Howells * - When retrieving targets on a DM_TABLE_STATUS command, this value 164607ca46eSDavid Howells * is the number of bytes from the start of the first dm_target_spec 165607ca46eSDavid Howells * (that follows the dm_ioctl struct) to the start of the "next" 166607ca46eSDavid Howells * dm_target_spec. 167607ca46eSDavid Howells */ 168607ca46eSDavid Howells __u32 next; 169607ca46eSDavid Howells 170607ca46eSDavid Howells char target_type[DM_MAX_TYPE_NAME]; 171607ca46eSDavid Howells 172607ca46eSDavid Howells /* 173607ca46eSDavid Howells * Parameter string starts immediately after this object. 174607ca46eSDavid Howells * Be careful to add padding after string to ensure correct 175607ca46eSDavid Howells * alignment of subsequent dm_target_spec. 176607ca46eSDavid Howells */ 177607ca46eSDavid Howells }; 178607ca46eSDavid Howells 179607ca46eSDavid Howells /* 180607ca46eSDavid Howells * Used to retrieve the target dependencies. 181607ca46eSDavid Howells */ 182607ca46eSDavid Howells struct dm_target_deps { 183607ca46eSDavid Howells __u32 count; /* Array size */ 184607ca46eSDavid Howells __u32 padding; /* unused */ 18594dfc73eSGustavo A. R. Silva __u64 dev[]; /* out */ 186607ca46eSDavid Howells }; 187607ca46eSDavid Howells 188607ca46eSDavid Howells /* 189607ca46eSDavid Howells * Used to get a list of all dm devices. 190607ca46eSDavid Howells */ 191607ca46eSDavid Howells struct dm_name_list { 192607ca46eSDavid Howells __u64 dev; 193607ca46eSDavid Howells __u32 next; /* offset to the next record from 194607ca46eSDavid Howells the _start_ of this */ 19594dfc73eSGustavo A. R. Silva char name[]; 1968b638081SMikulas Patocka 1978b638081SMikulas Patocka /* 1988b638081SMikulas Patocka * The following members can be accessed by taking a pointer that 1998b638081SMikulas Patocka * points immediately after the terminating zero character in "name" 2008b638081SMikulas Patocka * and aligning this pointer to next 8-byte boundary. 2018b638081SMikulas Patocka * Uuid is present if the flag DM_NAME_LIST_FLAG_HAS_UUID is set. 2028b638081SMikulas Patocka * 2038b638081SMikulas Patocka * __u32 event_nr; 2048b638081SMikulas Patocka * __u32 flags; 2058b638081SMikulas Patocka * char uuid[0]; 2068b638081SMikulas Patocka */ 207607ca46eSDavid Howells }; 208607ca46eSDavid Howells 2098b638081SMikulas Patocka #define DM_NAME_LIST_FLAG_HAS_UUID 1 2108b638081SMikulas Patocka #define DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID 2 2118b638081SMikulas Patocka 212607ca46eSDavid Howells /* 213607ca46eSDavid Howells * Used to retrieve the target versions 214607ca46eSDavid Howells */ 215607ca46eSDavid Howells struct dm_target_versions { 216607ca46eSDavid Howells __u32 next; 217607ca46eSDavid Howells __u32 version[3]; 218607ca46eSDavid Howells 21994dfc73eSGustavo A. R. Silva char name[]; 220607ca46eSDavid Howells }; 221607ca46eSDavid Howells 222607ca46eSDavid Howells /* 223607ca46eSDavid Howells * Used to pass message to a target 224607ca46eSDavid Howells */ 225607ca46eSDavid Howells struct dm_target_msg { 226607ca46eSDavid Howells __u64 sector; /* Device sector */ 227607ca46eSDavid Howells 22894dfc73eSGustavo A. R. Silva char message[]; 229607ca46eSDavid Howells }; 230607ca46eSDavid Howells 231607ca46eSDavid Howells /* 232607ca46eSDavid Howells * If you change this make sure you make the corresponding change 233607ca46eSDavid Howells * to dm-ioctl.c:lookup_ioctl() 234607ca46eSDavid Howells */ 235607ca46eSDavid Howells enum { 236607ca46eSDavid Howells /* Top level cmds */ 237607ca46eSDavid Howells DM_VERSION_CMD = 0, 238607ca46eSDavid Howells DM_REMOVE_ALL_CMD, 239607ca46eSDavid Howells DM_LIST_DEVICES_CMD, 240607ca46eSDavid Howells 241607ca46eSDavid Howells /* device level cmds */ 242607ca46eSDavid Howells DM_DEV_CREATE_CMD, 243607ca46eSDavid Howells DM_DEV_REMOVE_CMD, 244607ca46eSDavid Howells DM_DEV_RENAME_CMD, 245607ca46eSDavid Howells DM_DEV_SUSPEND_CMD, 246607ca46eSDavid Howells DM_DEV_STATUS_CMD, 247607ca46eSDavid Howells DM_DEV_WAIT_CMD, 248607ca46eSDavid Howells 249607ca46eSDavid Howells /* Table level cmds */ 250607ca46eSDavid Howells DM_TABLE_LOAD_CMD, 251607ca46eSDavid Howells DM_TABLE_CLEAR_CMD, 252607ca46eSDavid Howells DM_TABLE_DEPS_CMD, 253607ca46eSDavid Howells DM_TABLE_STATUS_CMD, 254607ca46eSDavid Howells 255607ca46eSDavid Howells /* Added later */ 256607ca46eSDavid Howells DM_LIST_VERSIONS_CMD, 257607ca46eSDavid Howells DM_TARGET_MSG_CMD, 258fc1841e1SMikulas Patocka DM_DEV_SET_GEOMETRY_CMD, 259fc1841e1SMikulas Patocka DM_DEV_ARM_POLL_CMD, 260afa179ebSMikulas Patocka DM_GET_TARGET_VERSION_CMD, 261607ca46eSDavid Howells }; 262607ca46eSDavid Howells 263607ca46eSDavid Howells #define DM_IOCTL 0xfd 264607ca46eSDavid Howells 265607ca46eSDavid Howells #define DM_VERSION _IOWR(DM_IOCTL, DM_VERSION_CMD, struct dm_ioctl) 266607ca46eSDavid Howells #define DM_REMOVE_ALL _IOWR(DM_IOCTL, DM_REMOVE_ALL_CMD, struct dm_ioctl) 267607ca46eSDavid Howells #define DM_LIST_DEVICES _IOWR(DM_IOCTL, DM_LIST_DEVICES_CMD, struct dm_ioctl) 268607ca46eSDavid Howells 269607ca46eSDavid Howells #define DM_DEV_CREATE _IOWR(DM_IOCTL, DM_DEV_CREATE_CMD, struct dm_ioctl) 270607ca46eSDavid Howells #define DM_DEV_REMOVE _IOWR(DM_IOCTL, DM_DEV_REMOVE_CMD, struct dm_ioctl) 271607ca46eSDavid Howells #define DM_DEV_RENAME _IOWR(DM_IOCTL, DM_DEV_RENAME_CMD, struct dm_ioctl) 272607ca46eSDavid Howells #define DM_DEV_SUSPEND _IOWR(DM_IOCTL, DM_DEV_SUSPEND_CMD, struct dm_ioctl) 273607ca46eSDavid Howells #define DM_DEV_STATUS _IOWR(DM_IOCTL, DM_DEV_STATUS_CMD, struct dm_ioctl) 274607ca46eSDavid Howells #define DM_DEV_WAIT _IOWR(DM_IOCTL, DM_DEV_WAIT_CMD, struct dm_ioctl) 275fc1841e1SMikulas Patocka #define DM_DEV_ARM_POLL _IOWR(DM_IOCTL, DM_DEV_ARM_POLL_CMD, struct dm_ioctl) 276607ca46eSDavid Howells 277607ca46eSDavid Howells #define DM_TABLE_LOAD _IOWR(DM_IOCTL, DM_TABLE_LOAD_CMD, struct dm_ioctl) 278607ca46eSDavid Howells #define DM_TABLE_CLEAR _IOWR(DM_IOCTL, DM_TABLE_CLEAR_CMD, struct dm_ioctl) 279607ca46eSDavid Howells #define DM_TABLE_DEPS _IOWR(DM_IOCTL, DM_TABLE_DEPS_CMD, struct dm_ioctl) 280607ca46eSDavid Howells #define DM_TABLE_STATUS _IOWR(DM_IOCTL, DM_TABLE_STATUS_CMD, struct dm_ioctl) 281607ca46eSDavid Howells 282607ca46eSDavid Howells #define DM_LIST_VERSIONS _IOWR(DM_IOCTL, DM_LIST_VERSIONS_CMD, struct dm_ioctl) 283afa179ebSMikulas Patocka #define DM_GET_TARGET_VERSION _IOWR(DM_IOCTL, DM_GET_TARGET_VERSION_CMD, struct dm_ioctl) 284607ca46eSDavid Howells 285607ca46eSDavid Howells #define DM_TARGET_MSG _IOWR(DM_IOCTL, DM_TARGET_MSG_CMD, struct dm_ioctl) 286607ca46eSDavid Howells #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) 287607ca46eSDavid Howells 288607ca46eSDavid Howells #define DM_VERSION_MAJOR 4 289*06961c48SMike Snitzer #define DM_VERSION_MINOR 48 29002cde50bSMikulas Patocka #define DM_VERSION_PATCHLEVEL 0 291*06961c48SMike Snitzer #define DM_VERSION_EXTRA "-ioctl (2023-03-01)" 292607ca46eSDavid Howells 293607ca46eSDavid Howells /* Status bits */ 294607ca46eSDavid Howells #define DM_READONLY_FLAG (1 << 0) /* In/Out */ 295607ca46eSDavid Howells #define DM_SUSPEND_FLAG (1 << 1) /* In/Out */ 296607ca46eSDavid Howells #define DM_PERSISTENT_DEV_FLAG (1 << 3) /* In */ 297607ca46eSDavid Howells 298607ca46eSDavid Howells /* 299607ca46eSDavid Howells * Flag passed into ioctl STATUS command to get table information 300607ca46eSDavid Howells * rather than current status. 301607ca46eSDavid Howells */ 302607ca46eSDavid Howells #define DM_STATUS_TABLE_FLAG (1 << 4) /* In */ 303607ca46eSDavid Howells 304607ca46eSDavid Howells /* 305607ca46eSDavid Howells * Flags that indicate whether a table is present in either of 306607ca46eSDavid Howells * the two table slots that a device has. 307607ca46eSDavid Howells */ 308607ca46eSDavid Howells #define DM_ACTIVE_PRESENT_FLAG (1 << 5) /* Out */ 309607ca46eSDavid Howells #define DM_INACTIVE_PRESENT_FLAG (1 << 6) /* Out */ 310607ca46eSDavid Howells 311607ca46eSDavid Howells /* 312607ca46eSDavid Howells * Indicates that the buffer passed in wasn't big enough for the 313607ca46eSDavid Howells * results. 314607ca46eSDavid Howells */ 315607ca46eSDavid Howells #define DM_BUFFER_FULL_FLAG (1 << 8) /* Out */ 316607ca46eSDavid Howells 317607ca46eSDavid Howells /* 318607ca46eSDavid Howells * This flag is now ignored. 319607ca46eSDavid Howells */ 320607ca46eSDavid Howells #define DM_SKIP_BDGET_FLAG (1 << 9) /* In */ 321607ca46eSDavid Howells 322607ca46eSDavid Howells /* 323607ca46eSDavid Howells * Set this to avoid attempting to freeze any filesystem when suspending. 324607ca46eSDavid Howells */ 325607ca46eSDavid Howells #define DM_SKIP_LOCKFS_FLAG (1 << 10) /* In */ 326607ca46eSDavid Howells 327607ca46eSDavid Howells /* 328607ca46eSDavid Howells * Set this to suspend without flushing queued ios. 329607ca46eSDavid Howells * Also disables flushing uncommitted changes in the thin target before 330607ca46eSDavid Howells * generating statistics for DM_TABLE_STATUS and DM_DEV_WAIT. 331607ca46eSDavid Howells */ 332607ca46eSDavid Howells #define DM_NOFLUSH_FLAG (1 << 11) /* In */ 333607ca46eSDavid Howells 334607ca46eSDavid Howells /* 335607ca46eSDavid Howells * If set, any table information returned will relate to the inactive 336607ca46eSDavid Howells * table instead of the live one. Always check DM_INACTIVE_PRESENT_FLAG 337607ca46eSDavid Howells * is set before using the data returned. 338607ca46eSDavid Howells */ 339607ca46eSDavid Howells #define DM_QUERY_INACTIVE_TABLE_FLAG (1 << 12) /* In */ 340607ca46eSDavid Howells 341607ca46eSDavid Howells /* 342607ca46eSDavid Howells * If set, a uevent was generated for which the caller may need to wait. 343607ca46eSDavid Howells */ 344607ca46eSDavid Howells #define DM_UEVENT_GENERATED_FLAG (1 << 13) /* Out */ 345607ca46eSDavid Howells 346607ca46eSDavid Howells /* 347607ca46eSDavid Howells * If set, rename changes the uuid not the name. Only permitted 348607ca46eSDavid Howells * if no uuid was previously supplied: an existing uuid cannot be changed. 349607ca46eSDavid Howells */ 350607ca46eSDavid Howells #define DM_UUID_FLAG (1 << 14) /* In */ 351607ca46eSDavid Howells 352607ca46eSDavid Howells /* 353607ca46eSDavid Howells * If set, all buffers are wiped after use. Use when sending 354607ca46eSDavid Howells * or requesting sensitive data such as an encryption key. 355607ca46eSDavid Howells */ 356607ca46eSDavid Howells #define DM_SECURE_DATA_FLAG (1 << 15) /* In */ 357607ca46eSDavid Howells 358a2606241SMikulas Patocka /* 359a2606241SMikulas Patocka * If set, a message generated output data. 360a2606241SMikulas Patocka */ 361a2606241SMikulas Patocka #define DM_DATA_OUT_FLAG (1 << 16) /* Out */ 362a2606241SMikulas Patocka 3632c140a24SMikulas Patocka /* 3642c140a24SMikulas Patocka * If set with DM_DEV_REMOVE or DM_REMOVE_ALL this indicates that if 3652c140a24SMikulas Patocka * the device cannot be removed immediately because it is still in use 3662c140a24SMikulas Patocka * it should instead be scheduled for removal when it gets closed. 3672c140a24SMikulas Patocka * 3682c140a24SMikulas Patocka * On return from DM_DEV_REMOVE, DM_DEV_STATUS or other ioctls, this 3692c140a24SMikulas Patocka * flag indicates that the device is scheduled to be removed when it 3702c140a24SMikulas Patocka * gets closed. 3712c140a24SMikulas Patocka */ 3722c140a24SMikulas Patocka #define DM_DEFERRED_REMOVE (1 << 17) /* In/Out */ 3732c140a24SMikulas Patocka 374ffcc3936SMike Snitzer /* 375ffcc3936SMike Snitzer * If set, the device is suspended internally. 376ffcc3936SMike Snitzer */ 377ffcc3936SMike Snitzer #define DM_INTERNAL_SUSPEND_FLAG (1 << 18) /* Out */ 378ffcc3936SMike Snitzer 37991ccbbacSTushar Sugandhi /* 38091ccbbacSTushar Sugandhi * If set, returns in the in buffer passed by UM, the raw table information 38191ccbbacSTushar Sugandhi * that would be measured by IMA subsystem on device state change. 38291ccbbacSTushar Sugandhi */ 38391ccbbacSTushar Sugandhi #define DM_IMA_MEASUREMENT_FLAG (1 << 19) /* In */ 38491ccbbacSTushar Sugandhi 385607ca46eSDavid Howells #endif /* _LINUX_DM_IOCTL_H */ 386