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117 lines
3.2 KiB
117 lines
3.2 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright (C) 2019 Samsung Electronics Co., Ltd. |
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*/ |
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#ifndef __KSMBD_WORK_H__ |
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#define __KSMBD_WORK_H__ |
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#include <linux/ctype.h> |
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#include <linux/workqueue.h> |
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struct ksmbd_conn; |
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struct ksmbd_session; |
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struct ksmbd_tree_connect; |
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enum { |
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KSMBD_WORK_ACTIVE = 0, |
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KSMBD_WORK_CANCELLED, |
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KSMBD_WORK_CLOSED, |
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}; |
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/* one of these for every pending CIFS request at the connection */ |
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struct ksmbd_work { |
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/* Server corresponding to this mid */ |
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struct ksmbd_conn *conn; |
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struct ksmbd_session *sess; |
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struct ksmbd_tree_connect *tcon; |
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/* Pointer to received SMB header */ |
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void *request_buf; |
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/* Response buffer */ |
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void *response_buf; |
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/* Read data buffer */ |
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void *aux_payload_buf; |
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/* Next cmd hdr in compound req buf*/ |
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int next_smb2_rcv_hdr_off; |
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/* Next cmd hdr in compound rsp buf*/ |
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int next_smb2_rsp_hdr_off; |
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/* |
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* Current Local FID assigned compound response if SMB2 CREATE |
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* command is present in compound request |
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*/ |
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u64 compound_fid; |
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u64 compound_pfid; |
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u64 compound_sid; |
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const struct cred *saved_cred; |
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/* Number of granted credits */ |
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unsigned int credits_granted; |
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/* response smb header size */ |
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unsigned int resp_hdr_sz; |
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unsigned int response_sz; |
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/* Read data count */ |
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unsigned int aux_payload_sz; |
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void *tr_buf; |
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unsigned char state; |
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/* Multiple responses for one request e.g. SMB ECHO */ |
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bool multiRsp:1; |
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/* No response for cancelled request */ |
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bool send_no_response:1; |
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/* Request is encrypted */ |
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bool encrypted:1; |
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/* Is this SYNC or ASYNC ksmbd_work */ |
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bool syncronous:1; |
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bool need_invalidate_rkey:1; |
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unsigned int remote_key; |
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/* cancel works */ |
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int async_id; |
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void **cancel_argv; |
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void (*cancel_fn)(void **argv); |
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struct work_struct work; |
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/* List head at conn->requests */ |
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struct list_head request_entry; |
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/* List head at conn->async_requests */ |
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struct list_head async_request_entry; |
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struct list_head fp_entry; |
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struct list_head interim_entry; |
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}; |
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/** |
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* ksmbd_resp_buf_next - Get next buffer on compound response. |
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* @work: smb work containing response buffer |
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*/ |
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static inline void *ksmbd_resp_buf_next(struct ksmbd_work *work) |
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{ |
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return work->response_buf + work->next_smb2_rsp_hdr_off; |
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} |
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/** |
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* ksmbd_req_buf_next - Get next buffer on compound request. |
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* @work: smb work containing response buffer |
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*/ |
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static inline void *ksmbd_req_buf_next(struct ksmbd_work *work) |
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{ |
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return work->request_buf + work->next_smb2_rcv_hdr_off; |
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} |
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struct ksmbd_work *ksmbd_alloc_work_struct(void); |
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void ksmbd_free_work_struct(struct ksmbd_work *work); |
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void ksmbd_work_pool_destroy(void); |
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int ksmbd_work_pool_init(void); |
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int ksmbd_workqueue_init(void); |
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void ksmbd_workqueue_destroy(void); |
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bool ksmbd_queue_work(struct ksmbd_work *work); |
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#endif /* __KSMBD_WORK_H__ */
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