2 * Unix SMB/CIFS implementation.
5 * Copyright (C) Andrew Tridgell 1992-2000
6 * Copyright (C) Jeremy Allison 1992-2006
7 * Copyright (C) Volker Lendecke 2005
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #ifndef _LOCKING_PROTO_H_
24 #define _LOCKING_PROTO_H_
26 /* The following definitions come from locking/brlock.c */
28 void brl_init(bool read_only);
29 void brl_shutdown(void);
31 unsigned int brl_num_locks(const struct byte_range_lock *brl);
32 struct files_struct *brl_fsp(struct byte_range_lock *brl);
33 uint32_t brl_num_read_oplocks(const struct byte_range_lock *brl);
34 void brl_set_num_read_oplocks(struct byte_range_lock *brl,
35 uint32_t num_read_oplocks);
37 NTSTATUS brl_lock_windows_default(struct byte_range_lock *br_lck,
38 struct lock_struct *plock,
41 NTSTATUS brl_lock(struct messaging_context *msg_ctx,
42 struct byte_range_lock *br_lck,
47 enum brl_type lock_type,
48 enum brl_flavour lock_flav,
51 bool brl_unlock(struct messaging_context *msg_ctx,
52 struct byte_range_lock *br_lck,
57 enum brl_flavour lock_flav);
58 bool brl_unlock_windows_default(struct messaging_context *msg_ctx,
59 struct byte_range_lock *br_lck,
60 const struct lock_struct *plock);
61 bool brl_locktest(struct byte_range_lock *br_lck,
62 const struct lock_struct *rw_probe);
63 NTSTATUS brl_lockquery(struct byte_range_lock *br_lck,
68 enum brl_type *plock_type,
69 enum brl_flavour lock_flav);
70 bool brl_lock_cancel(struct byte_range_lock *br_lck,
75 enum brl_flavour lock_flav);
76 bool brl_lock_cancel_default(struct byte_range_lock *br_lck,
77 struct lock_struct *plock);
78 bool brl_mark_disconnected(struct files_struct *fsp);
79 bool brl_reconnect_disconnected(struct files_struct *fsp);
80 void brl_close_fnum(struct messaging_context *msg_ctx,
81 struct byte_range_lock *br_lck);
82 int brl_forall(void (*fn)(struct file_id id, struct server_id pid,
83 enum brl_type lock_type,
84 enum brl_flavour lock_flav,
85 br_off start, br_off size,
88 struct byte_range_lock *brl_get_locks(TALLOC_CTX *mem_ctx,
90 struct byte_range_lock *brl_get_locks_readonly(files_struct *fsp);
91 void brl_revalidate(struct messaging_context *msg_ctx,
94 struct server_id server_id,
96 bool brl_cleanup_disconnected(struct file_id fid, uint64_t open_persistent_id);
98 /* The following definitions come from locking/locking.c */
100 const char *lock_type_name(enum brl_type lock_type);
101 const char *lock_flav_name(enum brl_flavour lock_flav);
102 void init_strict_lock_struct(files_struct *fsp,
106 enum brl_type lock_type,
107 struct lock_struct *plock);
108 bool strict_lock_default(files_struct *fsp,
109 struct lock_struct *plock);
110 NTSTATUS query_lock(files_struct *fsp,
114 enum brl_type *plock_type,
115 enum brl_flavour lock_flav);
116 struct byte_range_lock *do_lock(struct messaging_context *msg_ctx,
121 enum brl_type lock_type,
122 enum brl_flavour lock_flav,
126 NTSTATUS do_unlock(struct messaging_context *msg_ctx,
131 enum brl_flavour lock_flav);
132 NTSTATUS do_lock_cancel(files_struct *fsp,
136 enum brl_flavour lock_flav);
137 void locking_close_file(struct messaging_context *msg_ctx,
139 enum file_close_type close_type);
140 bool locking_init(void);
141 bool locking_init_readonly(void);
142 bool locking_end(void);
143 char *share_mode_str(TALLOC_CTX *ctx, int num, const struct share_mode_entry *e);
144 struct share_mode_lock *get_existing_share_mode_lock(TALLOC_CTX *mem_ctx,
146 struct share_mode_lock *get_share_mode_lock(
149 const char *servicepath,
150 const struct smb_filename *smb_fname,
151 const struct timespec *old_write_time);
152 struct share_mode_lock *fetch_share_mode_unlocked(TALLOC_CTX *mem_ctx,
154 struct tevent_req *fetch_share_mode_send(TALLOC_CTX *mem_ctx,
155 struct tevent_context *ev,
158 NTSTATUS fetch_share_mode_recv(struct tevent_req *req,
160 struct share_mode_lock **_lck);
161 bool rename_share_filename(struct messaging_context *msg_ctx,
162 struct share_mode_lock *lck,
164 const char *servicepath,
165 uint32_t orig_name_hash,
166 uint32_t new_name_hash,
167 const struct smb_filename *smb_fname);
168 void get_file_infos(struct file_id id,
170 bool *delete_on_close,
171 struct timespec *write_time);
172 bool is_valid_share_mode_entry(const struct share_mode_entry *e);
173 bool share_mode_stale_pid(struct share_mode_data *d, uint32_t idx);
174 bool set_share_mode(struct share_mode_lock *lck, struct files_struct *fsp,
175 uid_t uid, uint64_t mid, uint16_t op_type,
177 struct share_mode_entry *find_share_mode_entry(struct share_mode_lock *lck,
179 void remove_stale_share_mode_entries(struct share_mode_data *d);
180 bool del_share_mode(struct share_mode_lock *lck, files_struct *fsp);
181 bool mark_share_mode_disconnected(struct share_mode_lock *lck,
182 struct files_struct *fsp);
183 bool remove_share_oplock(struct share_mode_lock *lck, files_struct *fsp);
184 bool downgrade_share_oplock(struct share_mode_lock *lck, files_struct *fsp);
185 struct share_mode_lease;
186 NTSTATUS downgrade_share_lease(struct smbd_server_connection *sconn,
187 struct share_mode_lock *lck,
188 const struct smb2_lease_key *key,
189 uint32_t new_lease_state,
190 struct share_mode_lease **_l);
191 bool get_delete_on_close_token(struct share_mode_lock *lck,
193 const struct security_token **pp_nt_tok,
194 const struct security_unix_token **pp_tok);
195 void reset_delete_on_close_lck(files_struct *fsp,
196 struct share_mode_lock *lck);
197 void set_delete_on_close_lck(files_struct *fsp,
198 struct share_mode_lock *lck,
199 const struct security_token *nt_tok,
200 const struct security_unix_token *tok);
201 bool set_delete_on_close(files_struct *fsp, bool delete_on_close,
202 const struct security_token *nt_tok,
203 const struct security_unix_token *tok);
204 bool is_delete_on_close_set(struct share_mode_lock *lck, uint32_t name_hash);
205 bool set_sticky_write_time(struct file_id fileid, struct timespec write_time);
206 bool set_write_time(struct file_id fileid, struct timespec write_time);
207 struct timespec get_share_mode_write_time(struct share_mode_lock *lck);
208 int share_mode_forall(int (*fn)(struct file_id fid,
209 const struct share_mode_data *data,
212 int share_entry_forall(int (*fn)(const struct share_mode_entry *,
213 const char *, const char *,
214 const char *, void *),
216 bool share_mode_cleanup_disconnected(struct file_id id,
217 uint64_t open_persistent_id);
220 /* The following definitions come from locking/posix.c */
222 bool is_posix_locked(files_struct *fsp,
225 enum brl_type *plock_type,
226 enum brl_flavour lock_flav);
227 bool posix_locking_init(bool read_only);
228 bool posix_locking_end(void);
229 int fd_close_posix(const struct files_struct *fsp);
230 bool set_posix_lock_windows_flavour(files_struct *fsp,
233 enum brl_type lock_type,
234 const struct lock_context *lock_ctx,
235 const struct lock_struct *plocks,
238 bool release_posix_lock_windows_flavour(files_struct *fsp,
241 enum brl_type deleted_lock_type,
242 const struct lock_context *lock_ctx,
243 const struct lock_struct *plocks,
245 bool set_posix_lock_posix_flavour(files_struct *fsp,
248 enum brl_type lock_type,
249 const struct lock_context *lock_ctx,
251 bool release_posix_lock_posix_flavour(files_struct *fsp,
254 const struct lock_context *lock_ctx,
255 const struct lock_struct *plocks,
258 /* The following definitions come from locking/leases_util.c */
259 uint32_t map_oplock_to_lease_type(uint16_t op_type);
260 uint32_t fsp_lease_type(const struct files_struct *fsp);
261 uint32_t lease_type_is_exclusive(uint32_t lease_type);
262 bool fsp_lease_type_is_exclusive(const struct files_struct *fsp);
264 #endif /* _LOCKING_PROTO_H_ */