diff options
Diffstat (limited to 'source4/lib/ldb/modules')
| -rw-r--r-- | source4/lib/ldb/modules/operational.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/source4/lib/ldb/modules/operational.c b/source4/lib/ldb/modules/operational.c index 8b7d6b3518..51f0ce25e4 100644 --- a/source4/lib/ldb/modules/operational.c +++ b/source4/lib/ldb/modules/operational.c @@ -267,6 +267,29 @@ static int add_time_element(struct ldb_message *msg, const char *attr, time_t t) return 0; } +/* + add a uint64_t element to a record +*/ +static int add_uint64_element(struct ldb_message *msg, const char *attr, uint64_t v) +{ + struct ldb_message_element *el; + + if (ldb_msg_find_element(msg, attr) != NULL) { + return 0; + } + + if (ldb_msg_add_fmt(msg, attr, "%llu", v) != 0) { + return -1; + } + + el = ldb_msg_find_element(msg, attr); + /* always set as replace. This works because on add ops, the flag + is ignored */ + el->flags = LDB_FLAG_MOD_REPLACE; + + return 0; +} + /* hook add record ops @@ -292,6 +315,17 @@ static int operational_add(struct ldb_module *module, struct ldb_request *req) talloc_free(msg2); return -1; } + + /* see if the backend can give us the USN */ + if (module->ldb->sequence_number != NULL) { + uint64_t seq_num = module->ldb->sequence_number(module->ldb); + if (add_uint64_element(msg2, "uSNCreated", seq_num) != 0 || + add_uint64_element(msg2, "uSNChanged", seq_num) != 0) { + talloc_free(msg2); + return -1; + } + } + /* use the new structure for the call chain below this point */ req->op.add.message = msg2; /* go on with the call chain */ @@ -326,6 +360,15 @@ static int operational_modify(struct ldb_module *module, struct ldb_request *req talloc_free(msg2); return -1; } + + /* update the records USN if possible */ + if (module->ldb->sequence_number != NULL && + add_uint64_element(msg2, "uSNChanged", + module->ldb->sequence_number(module->ldb)) != 0) { + talloc_free(msg2); + return -1; + } + /* use the new structure for the call chain below this point */ req->op.mod.message = msg2; /* go on with the call chain */ |