/* SPDX-License-Identifier: LGPL-2.1 */
/*
*
* Structure definitions for io control for cifs / smb3
*
* Copyright ( c ) 2015 Steve French < steve . french @ primarydata . com >
*
*/
struct smb_mnt_fs_info {
__u32 version; /* 0001 */
__u16 protocol_id;
__u16 tcon_flags;
__u32 vol_serial_number;
__u32 vol_create_time;
__u32 share_caps;
__u32 share_flags;
__u32 sector_flags;
__u32 optimal_sector_size;
__u32 max_bytes_chunk;
__u32 fs_attributes;
__u32 max_path_component;
__u32 device_type;
__u32 device_characteristics;
__u32 maximal_access;
__u64 cifs_posix_caps;
} __packed;
struct smb_mnt_tcon_info {
__u32 tid;
__u64 session_id;
} __packed;
struct smb_snapshot_array {
__u32 number_of_snapshots;
__u32 number_of_snapshots_returned;
__u32 snapshot_array_size;
/* snapshots[]; */
} __packed;
/* query_info flags */
#define PASSTHRU_QUERY_INFO 0 x00000000
#define PASSTHRU_FSCTL 0 x00000001
#define PASSTHRU_SET_INFO 0 x00000002
struct smb_query_info {
__u32 info_type;
__u32 file_info_class;
__u32 additional_information;
__u32 flags;
__u32 input_buffer_length;
__u32 output_buffer_length;
/* char buffer[]; */
} __packed;
/*
* Dumping the commonly used 16 byte ( e . g . CCM and GCM128 ) keys still supported
* for backlevel compatibility , but is not sufficient for dumping the less
* frequently used GCM256 ( 32 byte ) keys ( see the newer " CIFS_DUMP_FULL_KEY "
* ioctl for dumping decryption info for GCM256 mounts )
*/
struct smb3_key_debug_info {
__u64 Suid;
__u16 cipher_type;
__u8 auth_key[SMB2_NTLMV2_SESSKEY_SIZE];
__u8 smb3encryptionkey[SMB3_SIGN_KEY_SIZE];
__u8 smb3decryptionkey[SMB3_SIGN_KEY_SIZE];
} __packed;
/*
* Dump variable - sized keys
*/
struct smb3_full_key_debug_info {
/* INPUT: size of userspace buffer */
__u32 in_size;
/*
* INPUT : 0 for current user , otherwise session to dump
* OUTPUT : session id that was dumped
*/
__u64 session_id;
__u16 cipher_type;
__u8 session_key_length;
__u8 server_in_key_length;
__u8 server_out_key_length;
__u8 data[];
/*
* return this struct with the keys appended at the end :
* _ _ u8 session_key [ session_key_length ] ;
* _ _ u8 server_in_key [ server_in_key_length ] ;
* _ _ u8 server_out_key [ server_out_key_length ] ;
*/
} __packed;
struct smb3_notify {
__u32 completion_filter;
bool watch_tree;
} __packed;
struct smb3_notify_info {
__u32 completion_filter;
bool watch_tree;
__u32 data_len; /* size of notify data below */
__u8 notify_data[];
} __packed;
#define CIFS_IOCTL_MAGIC 0 xCF
#define CIFS_IOC_COPYCHUNK_FILE _IOW(CIFS_IOCTL_MAGIC, 3 , int )
#define CIFS_IOC_SET_INTEGRITY _IO(CIFS_IOCTL_MAGIC, 4 )
#define CIFS_IOC_GET_MNT_INFO _IOR(CIFS_IOCTL_MAGIC, 5 , struct smb_mnt_fs_info)
#define CIFS_ENUMERATE_SNAPSHOTS _IOR(CIFS_IOCTL_MAGIC, 6 , struct smb_snapshot_array)
#define CIFS_QUERY_INFO _IOWR(CIFS_IOCTL_MAGIC, 7 , struct smb_query_info)
#define CIFS_DUMP_KEY _IOWR(CIFS_IOCTL_MAGIC, 8 , struct smb3_key_debug_info)
#define CIFS_IOC_NOTIFY _IOW(CIFS_IOCTL_MAGIC, 9 , struct smb3_notify)
#define CIFS_DUMP_FULL_KEY _IOWR(CIFS_IOCTL_MAGIC, 10 , struct smb3_full_key_debug_info)
#define CIFS_IOC_NOTIFY_INFO _IOWR(CIFS_IOCTL_MAGIC, 11 , struct smb3_notify_info)
#define CIFS_IOC_GET_TCON_INFO _IOR(CIFS_IOCTL_MAGIC, 12 , struct smb_mnt_tcon_info)
#define CIFS_IOC_SHUTDOWN _IOR('X' , 125 , __u32)
/*
* Flags for going down operation
*/
#define CIFS_GOING_FLAGS_DEFAULT 0 x0 /* going down */
#define CIFS_GOING_FLAGS_LOGFLUSH 0 x1 /* flush log but not data */
#define CIFS_GOING_FLAGS_NOLOGFLUSH 0 x2 /* don't flush log nor data */
static inline bool cifs_forced_shutdown(struct cifs_sb_info *sbi)
{
if (CIFS_MOUNT_SHUTDOWN & sbi->mnt_cifs_flags)
return true ;
else
return false ;
}
Messung V0.5 in Prozent C=89 H=100 G=94
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(vorverarbeitet am 2026-09-30)
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