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authorFernando J V da Silva <fernandojvsilva@yahoo.com.br>2010-01-07 16:30:05 -0200
committerAndrew Tridgell <tridge@samba.org>2010-01-14 15:37:58 +1100
commite30d009965a789e8a4495609f8d19adb621df6f4 (patch)
tree12ed0c7fe56d36c647833d6b478de8a5afe6c8d3 /source4/dsdb/samdb
parentac224452b94865db346ed68dc517f84d40e6303c (diff)
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s4-drs: Store uSNUrgent for Urgent Replication
When a object or attribute is created/updated/deleted, according to [MS-ADTS] 3.1.1.5.1.6, it stores the uSNUrgent on @REPLCHANGED for the partitions that it belongs. Signed-off-by: Andrew Tridgell <tridge@samba.org>
Diffstat (limited to 'source4/dsdb/samdb')
-rw-r--r--source4/dsdb/samdb/ldb_modules/repl_meta_data.c105
1 files changed, 95 insertions, 10 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/repl_meta_data.c b/source4/dsdb/samdb/ldb_modules/repl_meta_data.c
index b4caac4c8d..15c940f842 100644
--- a/source4/dsdb/samdb/ldb_modules/repl_meta_data.c
+++ b/source4/dsdb/samdb/ldb_modules/repl_meta_data.c
@@ -60,6 +60,7 @@ struct replmd_private {
struct nc_entry *prev, *next;
struct ldb_dn *dn;
uint64_t mod_usn;
+ uint64_t mod_usn_urgent;
} *ncs;
};
@@ -85,12 +86,69 @@ struct replmd_replicated_request {
struct ldb_message *search_msg;
uint64_t seq_num;
+ bool is_urgent;
+};
+enum urgent_situation {
+ REPL_URGENT_ON_CREATE = 1,
+ REPL_URGENT_ON_UPDATE = 3, /* activated on creating as well*/
+ REPL_URGENT_ON_DELETE = 4
};
-static int replmd_replicated_apply_next(struct replmd_replicated_request *ar);
+
+static const struct {
+ const char *update_name;
+ enum urgent_situation repl_situation;
+} urgent_objects[] = {
+ {"nTDSDSA", (REPL_URGENT_ON_CREATE | REPL_URGENT_ON_DELETE)},
+ {"crossRef", (REPL_URGENT_ON_CREATE | REPL_URGENT_ON_DELETE)},
+ {"attributeSchema", REPL_URGENT_ON_UPDATE},
+ {"classSchema", REPL_URGENT_ON_UPDATE},
+ {"secret", REPL_URGENT_ON_UPDATE},
+ {"rIDManager", REPL_URGENT_ON_UPDATE},
+ {NULL, 0}
+};
+
+/* Attributes looked for when updating or deleting, to check for a urgent replication needed */
+static const char *urgent_attrs[] = {
+ "lockoutTime",
+ "pwdLastSet",
+ "userAccountControl",
+ NULL
+};
+
+
+static bool replmd_check_urgent_objectclass(const struct ldb_message_element *objectclass_el,
+ enum urgent_situation situation)
+{
+ int i, j;
+ for (i=0; urgent_objects[i].update_name; i++) {
+
+ if ((situation & urgent_objects[i].repl_situation) == 0) {
+ continue;
+ }
+
+ for (j=0; j<objectclass_el->num_values; j++) {
+ const struct ldb_val *v = &objectclass_el->values[j];
+ if (ldb_attr_cmp((const char *)v->data, urgent_objects[i].update_name) == 0) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+static bool replmd_check_urgent_attribute(const struct ldb_message_element *el)
+{
+ if (ldb_attr_in_list(urgent_attrs, el->name)) {
+ return true;
+ }
+ return false;
+}
+static int replmd_replicated_apply_next(struct replmd_replicated_request *ar);
+
/*
initialise the module
allocate the private structure and build the list
@@ -353,6 +411,9 @@ static int replmd_op_callback(struct ldb_request *req, struct ldb_reply *ares)
if (ac->seq_num > modified_partition->mod_usn) {
modified_partition->mod_usn = ac->seq_num;
+ if (ac->is_urgent) {
+ modified_partition->mod_usn_urgent = ac->seq_num;
+ }
}
}
@@ -383,7 +444,7 @@ static int replmd_op_callback(struct ldb_request *req, struct ldb_reply *ares)
*/
static int replmd_notify_store(struct ldb_module *module)
{
- struct replmd_private *replmd_private =
+ struct replmd_private *replmd_private =
talloc_get_type(ldb_module_get_private(module), struct replmd_private);
struct ldb_context *ldb = ldb_module_get_ctx(module);
@@ -391,7 +452,9 @@ static int replmd_notify_store(struct ldb_module *module)
int ret;
struct nc_entry *modified_partition = replmd_private->ncs;
- ret = dsdb_save_partition_usn(ldb, modified_partition->dn, modified_partition->mod_usn);
+ ret = dsdb_save_partition_usn(ldb, modified_partition->dn,
+ modified_partition->mod_usn,
+ modified_partition->mod_usn_urgent);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Failed to save partition uSN for %s\n",
ldb_dn_get_linearized(modified_partition->dn)));
@@ -668,6 +731,8 @@ static int replmd_add(struct ldb_module *module, struct ldb_request *req)
uint32_t i, ni=0;
bool allow_add_guid = false;
bool remove_current_guid = false;
+ bool is_urgent = false;
+ struct ldb_message_element *objectclass_el;
/* check if there's a show relax control (used by provision to say 'I know what I'm doing') */
control = ldb_request_get_control(req, LDB_CONTROL_RELAX_OID);
@@ -888,11 +953,17 @@ static int replmd_add(struct ldb_module *module, struct ldb_request *req)
*/
replmd_ldb_message_sort(msg, ac->schema);
+ objectclass_el = ldb_msg_find_element(msg, "objectClass");
+ is_urgent = replmd_check_urgent_objectclass(objectclass_el,
+ REPL_URGENT_ON_CREATE);
+
+ ac->is_urgent = is_urgent;
ret = ldb_build_add_req(&down_req, ldb, ac,
msg,
req->controls,
ac, replmd_op_callback,
req);
+
if (ret != LDB_SUCCESS) {
talloc_free(ac);
return ret;
@@ -911,7 +982,7 @@ static int replmd_add(struct ldb_module *module, struct ldb_request *req)
/*
* update the replPropertyMetaData for one element
*/
-static int replmd_update_rpmd_element(struct ldb_context *ldb,
+static int replmd_update_rpmd_element(struct ldb_context *ldb,
struct ldb_message *msg,
struct ldb_message_element *el,
struct replPropertyMetaDataBlob *omd,
@@ -994,7 +1065,8 @@ static int replmd_update_rpmd_element(struct ldb_context *ldb,
static int replmd_update_rpmd(struct ldb_module *module,
const struct dsdb_schema *schema,
struct ldb_message *msg, uint64_t *seq_num,
- time_t t)
+ time_t t,
+ bool *is_urgent)
{
const struct ldb_val *omd_value;
enum ndr_err_code ndr_err;
@@ -1003,9 +1075,10 @@ static int replmd_update_rpmd(struct ldb_module *module,
NTTIME now;
const struct GUID *our_invocation_id;
int ret;
- const char *attrs[] = { "replPropertyMetaData" , NULL };
+ const char *attrs[] = { "replPropertyMetaData" , "objectClass", NULL };
struct ldb_result *res;
struct ldb_context *ldb;
+ struct ldb_message_element *objectclass_el;
ldb = ldb_module_get_ctx(module);
@@ -1026,7 +1099,12 @@ static int replmd_update_rpmd(struct ldb_module *module,
ldb_dn_get_linearized(msg->dn)));
return LDB_ERR_OPERATIONS_ERROR;
}
-
+
+ objectclass_el = ldb_msg_find_element(res->msgs[0], "objectClass");
+ if (is_urgent && replmd_check_urgent_objectclass(objectclass_el,
+ REPL_URGENT_ON_UPDATE)) {
+ *is_urgent = true;
+ }
omd_value = ldb_msg_find_ldb_val(res->msgs[0], "replPropertyMetaData");
if (!omd_value) {
@@ -1051,11 +1129,16 @@ static int replmd_update_rpmd(struct ldb_module *module,
}
for (i=0; i<msg->num_elements; i++) {
- ret = replmd_update_rpmd_element(ldb, msg, &msg->elements[i], &omd, schema, seq_num,
+ ret = replmd_update_rpmd_element(ldb, msg, &msg->elements[i], &omd, schema, seq_num,
our_invocation_id, now);
if (ret != LDB_SUCCESS) {
return ret;
}
+
+ if (is_urgent && !*is_urgent) {
+ *is_urgent = replmd_check_urgent_attribute(&msg->elements[i]);
+ }
+
}
/*
@@ -1101,7 +1184,6 @@ static int replmd_update_rpmd(struct ldb_module *module,
return LDB_SUCCESS;
}
-
struct parsed_dn {
struct dsdb_dn *dsdb_dn;
struct GUID *guid;
@@ -1920,6 +2002,7 @@ static int replmd_modify(struct ldb_module *module, struct ldb_request *req)
struct ldb_message *msg;
time_t t = time(NULL);
int ret;
+ bool is_urgent = false;
/* do not manipulate our control entries */
if (ldb_dn_is_special(req->op.mod.message->dn)) {
@@ -1946,7 +2029,7 @@ static int replmd_modify(struct ldb_module *module, struct ldb_request *req)
ldb_msg_remove_attr(msg, "whenChanged");
ldb_msg_remove_attr(msg, "uSNChanged");
- ret = replmd_update_rpmd(module, ac->schema, msg, &ac->seq_num, t);
+ ret = replmd_update_rpmd(module, ac->schema, msg, &ac->seq_num, t, &is_urgent);
if (ret != LDB_SUCCESS) {
talloc_free(ac);
return ret;
@@ -1962,6 +2045,8 @@ static int replmd_modify(struct ldb_module *module, struct ldb_request *req)
* - replace the old object with the newly constructed one
*/
+ ac->is_urgent = is_urgent;
+
ret = ldb_build_mod_req(&down_req, ldb, ac,
msg,
req->controls,