lib/ldb/ldb_tdb/ldb_tdb.h

   1 #include "replace.h"
   2 #include "system/filesys.h"
   3 #include "system/time.h"
   4 #include "tdb.h"
   5 #include "ldb_module.h"
   6
   7 /* this private structure is used by the ltdb backend in the
   8    ldb_context */
   9 struct ltdb_private {
  10         TDB_CONTEXT *tdb;
  11         unsigned int connect_flags;
  12
  13         unsigned long long sequence_number;
  14
  15         /* the low level tdb seqnum - used to avoid loading BASEINFO when
  16            possible */
  17         int tdb_seqnum;
  18
  19         struct ltdb_cache {
  20                 struct ldb_message *indexlist;
  21                 bool one_level_indexes;
  22                 bool attribute_indexes;
  23         } *cache;
  24
  25         int in_transaction;
  26
  27         bool check_base;
  28         bool disallow_dn_filter;
  29         struct ltdb_idxptr *idxptr;
  30         bool prepared_commit;
  31         int read_lock_count;
  32
  33         bool warn_unindexed;
  34         bool warn_reindex;
  35 };
  36
  37 struct ltdb_context {
  38         struct ldb_module *module;
  39         struct ldb_request *req;
  40
  41         bool request_terminated;
  42         struct ltdb_req_spy *spy;
  43
  44         /* search stuff */
  45         const struct ldb_parse_tree *tree;
  46         struct ldb_dn *base;
  47         enum ldb_scope scope;
  48         const char * const *attrs;
  49         struct tevent_timer *timeout_event;
  50
  51         /* error handling */
  52         int error;
  53 };
  54
  55 /* special record types */
  56 #define LTDB_INDEX      "@INDEX"
  57 #define LTDB_INDEXLIST  "@INDEXLIST"
  58 #define LTDB_IDX        "@IDX"
  59 #define LTDB_IDXVERSION "@IDXVERSION"
  60 #define LTDB_IDXATTR    "@IDXATTR"
  61 #define LTDB_IDXONE     "@IDXONE"
  62 #define LTDB_BASEINFO   "@BASEINFO"
  63 #define LTDB_OPTIONS    "@OPTIONS"
  64 #define LTDB_ATTRIBUTES "@ATTRIBUTES"
  65
  66 /* special attribute types */
  67 #define LTDB_SEQUENCE_NUMBER "sequenceNumber"
  68 #define LTDB_CHECK_BASE "checkBaseOnSearch"
  69 #define LTDB_DISALLOW_DN_FILTER "disallowDNFilter"
  70 #define LTDB_MOD_TIMESTAMP "whenChanged"
  71 #define LTDB_OBJECTCLASS "objectClass"
  72
  73 /* The following definitions come from lib/ldb/ldb_tdb/ldb_cache.c  */
  74
  75 int ltdb_cache_reload(struct ldb_module *module);
  76 int ltdb_cache_load(struct ldb_module *module);
  77 int ltdb_increase_sequence_number(struct ldb_module *module);
  78 int ltdb_check_at_attributes_values(const struct ldb_val *value);
  79
  80 /* The following definitions come from lib/ldb/ldb_tdb/ldb_index.c  */
  81
  82 struct ldb_parse_tree;
  83
  84 int ltdb_search_indexed(struct ltdb_context *ctx, uint32_t *);
  85 int ltdb_index_add_new(struct ldb_module *module,
  86                        struct ltdb_private *ltdb,
  87                        const struct ldb_message *msg);
  88 int ltdb_index_delete(struct ldb_module *module, const struct ldb_message *msg);
  89 int ltdb_index_del_element(struct ldb_module *module,
  90                            struct ltdb_private *ltdb,
  91                            struct ldb_dn *dn,
  92                            struct ldb_message_element *el);
  93 int ltdb_index_add_element(struct ldb_module *module,
  94                            struct ltdb_private *ltdb,
  95                            struct ldb_dn *dn,
  96                            struct ldb_message_element *el);
  97 int ltdb_index_del_value(struct ldb_module *module,
  98                          struct ltdb_private *ltdb,
  99                          struct ldb_dn *dn,
 100                          struct ldb_message_element *el, unsigned int v_idx);
 101 int ltdb_reindex(struct ldb_module *module);
 102 int ltdb_index_transaction_start(struct ldb_module *module);
 103 int ltdb_index_transaction_commit(struct ldb_module *module);
 104 int ltdb_index_transaction_cancel(struct ldb_module *module);
 105
 106 /* The following definitions come from lib/ldb/ldb_tdb/ldb_search.c  */
 107
 108 int ltdb_has_wildcard(struct ldb_module *module, const char *attr_name,
 109                       const struct ldb_val *val);
 110 void ltdb_search_dn1_free(struct ldb_module *module, struct ldb_message *msg);
 111 int ltdb_search_dn1(struct ldb_module *module, struct ldb_dn *dn, struct ldb_message *msg,
 112                     unsigned int unpack_flags);
 113 int ltdb_filter_attrs(TALLOC_CTX *mem_ctx,
 114                       const struct ldb_message *msg, const char * const *attrs,
 115                       struct ldb_message **filtered_msg);
 116 int ltdb_search(struct ltdb_context *ctx);
 117
 118 /* The following definitions come from lib/ldb/ldb_tdb/ldb_tdb.c  */
 119 int ltdb_lock_read(struct ldb_module *module);
 120 int ltdb_unlock_read(struct ldb_module *module);
 121 /*
 122  * Determine if this key could hold a record.  We allow the new GUID
 123  * index, the old DN index and a possible future ID=
 124  */
 125 bool ltdb_key_is_record(TDB_DATA key);
 126 TDB_DATA ltdb_key(struct ldb_module *module, struct ldb_dn *dn);
 127 int ltdb_store(struct ldb_module *module, const struct ldb_message *msg, int flgs);
 128 int ltdb_modify_internal(struct ldb_module *module, const struct ldb_message *msg, struct ldb_request *req);
 129 int ltdb_delete_noindex(struct ldb_module *module, struct ldb_dn *dn);
 130 int ltdb_err_map(enum TDB_ERROR tdb_code);
 131
 132 struct tdb_context *ltdb_wrap_open(TALLOC_CTX *mem_ctx,
 133                                    const char *path, int hash_size, int tdb_flags,
 134                                    int open_flags, mode_t mode,
 135                                    struct ldb_context *ldb);