| 1 | /* 
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| 2 |    Unix SMB/CIFS implementation.
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| 3 |    Database interface wrapper around tdb
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| 4 |    Copyright (C) Volker Lendecke 2005-2007
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| 5 |    
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| 6 |    This program is free software; you can redistribute it and/or modify
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| 7 |    it under the terms of the GNU General Public License as published by
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| 8 |    the Free Software Foundation; either version 3 of the License, or
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| 9 |    (at your option) any later version.
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| 10 |    
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| 11 |    This program is distributed in the hope that it will be useful,
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| 12 |    but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 |    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| 14 |    GNU General Public License for more details.
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| 15 |    
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| 16 |    You should have received a copy of the GNU General Public License
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| 17 |    along with this program.  If not, see <http://www.gnu.org/licenses/>.
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| 18 | */
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| 19 | 
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| 20 | #ifndef __DBWRAP_H__
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| 21 | #define __DBWRAP_H__
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| 22 | 
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| 23 | struct db_record {
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| 24 |         TDB_DATA key, value;
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| 25 |         NTSTATUS (*store)(struct db_record *rec, TDB_DATA data, int flag);
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| 26 |         NTSTATUS (*delete_rec)(struct db_record *rec);
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| 27 |         void *private_data;
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| 28 | };
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| 29 | 
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| 30 | struct db_context {
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| 31 |         struct db_record *(*fetch_locked)(struct db_context *db,
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| 32 |                                           TALLOC_CTX *mem_ctx,
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| 33 |                                           TDB_DATA key);
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| 34 |         int (*fetch)(struct db_context *db, TALLOC_CTX *mem_ctx,
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| 35 |                      TDB_DATA key, TDB_DATA *data);
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| 36 |         int (*traverse)(struct db_context *db,
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| 37 |                         int (*f)(struct db_record *rec,
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| 38 |                                  void *private_data),
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| 39 |                         void *private_data);
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| 40 |         int (*traverse_read)(struct db_context *db,
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| 41 |                              int (*f)(struct db_record *rec,
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| 42 |                                       void *private_data),
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| 43 |                              void *private_data);
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| 44 |         int (*get_seqnum)(struct db_context *db);
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| 45 |         int (*get_flags)(struct db_context *db);
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| 46 |         int (*transaction_start)(struct db_context *db);
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| 47 |         int (*transaction_commit)(struct db_context *db);
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| 48 |         int (*transaction_cancel)(struct db_context *db);
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| 49 |         int (*parse_record)(struct db_context *db, TDB_DATA key,
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| 50 |                             int (*parser)(TDB_DATA key, TDB_DATA data,
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| 51 |                                           void *private_data),
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| 52 |                             void *private_data);
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| 53 |         void *private_data;
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| 54 |         bool persistent;
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| 55 | };
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| 56 | 
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| 57 | bool db_is_local(const char *name);
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| 58 | 
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| 59 | struct db_context *db_open(TALLOC_CTX *mem_ctx,
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| 60 |                            const char *name,
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| 61 |                            int hash_size, int tdb_flags,
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| 62 |                            int open_flags, mode_t mode);
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| 63 | 
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| 64 | struct db_context *db_open_rbt(TALLOC_CTX *mem_ctx);
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| 65 | 
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| 66 | struct db_context *db_open_tdb(TALLOC_CTX *mem_ctx,
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| 67 |                                const char *name,
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| 68 |                                int hash_size, int tdb_flags,
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| 69 |                                int open_flags, mode_t mode);
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| 70 | 
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| 71 | struct db_context *db_open_tdb2(TALLOC_CTX *mem_ctx,
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| 72 |                                 const char *name,
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| 73 |                                 int hash_size, int tdb_flags,
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| 74 |                                 int open_flags, mode_t mode);
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| 75 | 
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| 76 | struct messaging_context;
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| 77 | 
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| 78 | #ifdef CLUSTER_SUPPORT
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| 79 | struct db_context *db_open_ctdb(TALLOC_CTX *mem_ctx,
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| 80 |                                 const char *name,
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| 81 |                                 int hash_size, int tdb_flags,
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| 82 |                                 int open_flags, mode_t mode);
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| 83 | #endif
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| 84 | 
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| 85 | struct db_context *db_open_file(TALLOC_CTX *mem_ctx,
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| 86 |                                 struct messaging_context *msg_ctx,
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| 87 |                                 const char *name,
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| 88 |                                 int hash_size, int tdb_flags,
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| 89 |                                 int open_flags, mode_t mode);
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| 90 | 
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| 91 | 
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| 92 | NTSTATUS dbwrap_delete(struct db_context *db, TDB_DATA key);
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| 93 | NTSTATUS dbwrap_store(struct db_context *db, TDB_DATA key,
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| 94 |                       TDB_DATA data, int flags);
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| 95 | TDB_DATA dbwrap_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
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| 96 |                       TDB_DATA key);
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| 97 | NTSTATUS dbwrap_delete_bystring(struct db_context *db, const char *key);
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| 98 | NTSTATUS dbwrap_store_bystring(struct db_context *db, const char *key,
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| 99 |                                TDB_DATA data, int flags);
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| 100 | TDB_DATA dbwrap_fetch_bystring(struct db_context *db, TALLOC_CTX *mem_ctx,
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| 101 |                                const char *key);
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| 102 | 
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| 103 | #endif /* __DBWRAP_H__ */
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