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-rw-r--r--fs/smb/client/cifs_ioctl.h132
1 files changed, 132 insertions, 0 deletions
diff --git a/fs/smb/client/cifs_ioctl.h b/fs/smb/client/cifs_ioctl.h
new file mode 100644
index 0000000000..26327442e3
--- /dev/null
+++ b/fs/smb/client/cifs_ioctl.h
@@ -0,0 +1,132 @@
+/* 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 0x00000000
+#define PASSTHRU_FSCTL 0x00000001
+#define PASSTHRU_SET_INFO 0x00000002
+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[16]; /* 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 0xCF
+#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 0x0 /* going down */
+#define CIFS_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */
+#define CIFS_GOING_FLAGS_NOLOGFLUSH 0x2 /* 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;
+}