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authorKamen Mazdrashki <kamenim@samba.org>2010-09-07 17:00:20 +0300
committerKamen Mazdrashki <kamenim@samba.org>2010-09-07 17:09:35 +0300
commite64e3985688e57a882e0e128b256ec5f84c6f67a (patch)
tree7c9049760cc3679585453e074a94511766571d00 /source4/dsdb/repl
parent3f109f8fd7bdd2cc691beb78463fba7a469e2a3d (diff)
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s4-dreplsrv: Run NC replication synchronously if requested
Diffstat (limited to 'source4/dsdb/repl')
-rw-r--r--source4/dsdb/repl/drepl_service.c149
1 files changed, 119 insertions, 30 deletions
diff --git a/source4/dsdb/repl/drepl_service.c b/source4/dsdb/repl/drepl_service.c
index 5babbcbf6d..7d4a88ca80 100644
--- a/source4/dsdb/repl/drepl_service.c
+++ b/source4/dsdb/repl/drepl_service.c
@@ -34,6 +34,21 @@
#include "librpc/gen_ndr/ndr_irpc.h"
#include "param/param.h"
+/**
+ * Call-back data for _drepl_replica_sync_done_cb()
+ */
+struct drepl_replica_sync_cb_data {
+ struct irpc_message *msg;
+ struct drsuapi_DsReplicaSync *r;
+
+ /* number of ops left to be completed */
+ int ops_count;
+
+ /* last failure error code */
+ WERROR werr_last_failure;
+};
+
+
static WERROR dreplsrv_init_creds(struct dreplsrv_service *service)
{
service->system_session_info = system_session(service->task->lp_ctx);
@@ -104,6 +119,92 @@ static WERROR dreplsrv_connect_samdb(struct dreplsrv_service *service, struct lo
}
+/**
+ * Callback for dreplsrv_out_operation operation completion.
+ *
+ * We just need to complete a waiting IRPC message here.
+ * In case pull operation has failed,
+ * caller of this callback will dump
+ * failure information.
+ *
+ * NOTE: cb_data is allocated in IRPC msg's context
+ * and will be freed during irpc_send_reply() call.
+ */
+static void _drepl_replica_sync_done_cb(struct dreplsrv_service *service,
+ WERROR werr,
+ enum drsuapi_DsExtendedError ext_err,
+ void *cb_data)
+{
+ struct drepl_replica_sync_cb_data *data = talloc_get_type(cb_data,
+ struct drepl_replica_sync_cb_data);
+ struct irpc_message *msg = data->msg;
+ struct drsuapi_DsReplicaSync *r = data->r;
+
+ /* store last bad result */
+ if (W_ERROR_IS_OK(werr)) {
+ data->werr_last_failure = werr;
+ }
+
+ /* decrement pending ops count */
+ data->ops_count--;
+
+ if (data->ops_count == 0) {
+ /* Return result to client */
+ r->out.result = data->werr_last_failure;
+
+ /* complete IRPC message */
+ irpc_send_reply(msg, NT_STATUS_OK);
+ }
+}
+
+/**
+ * Helper to schedule a replication operation with a source DSA.
+ * If 'data' is valid pointer, then a callback
+ * for the operation is passed and 'data->msg' is
+ * marked as 'deferred' - defer_reply = true
+ */
+static WERROR _drepl_schedule_replication(struct dreplsrv_service *service,
+ struct dreplsrv_partition_source_dsa *dsa,
+ struct drsuapi_DsReplicaObjectIdentifier *nc,
+ struct drepl_replica_sync_cb_data *data,
+ TALLOC_CTX *mem_ctx)
+{
+ WERROR werr;
+ dreplsrv_fsmo_callback_t fn_callback = NULL;
+
+ if (data) {
+ fn_callback = _drepl_replica_sync_done_cb;
+ }
+
+ /* schedule replication item */
+ werr = dreplsrv_schedule_partition_pull_source(service, dsa,
+ DRSUAPI_EXOP_NONE, 0,
+ fn_callback, data);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0,("%s: failed setup of sync of partition (%s, %s, %s) - %s\n",
+ __FUNCTION__,
+ GUID_string(mem_ctx, &nc->guid),
+ nc->dn,
+ dsa->repsFrom1->other_info->dns_name,
+ win_errstr(werr)));
+ return werr;
+ }
+ /* log we've scheduled a replication item */
+ DEBUG(3,("%s: forcing sync of partition (%s, %s, %s)\n",
+ __FUNCTION__,
+ GUID_string(mem_ctx, &nc->guid),
+ nc->dn,
+ dsa->repsFrom1->other_info->dns_name));
+
+ /* mark IRPC message as deferred if necessary */
+ if (data) {
+ data->ops_count++;
+ data->msg->defer_reply = true;
+ }
+
+ return WERR_OK;
+}
+
/*
DsReplicaSync messages from the DRSUAPI server are forwarded here
*/
@@ -112,6 +213,7 @@ static NTSTATUS drepl_replica_sync(struct irpc_message *msg,
{
WERROR werr;
struct dreplsrv_partition *p;
+ struct drepl_replica_sync_cb_data *cb_data;
struct dreplsrv_partition_source_dsa *dsa;
struct drsuapi_DsReplicaSyncRequest1 *req1;
struct drsuapi_DsReplicaObjectIdentifier *nc;
@@ -147,28 +249,29 @@ static NTSTATUS drepl_replica_sync(struct irpc_message *msg,
REPLICA_SYNC_FAIL(werr);
}
+ /* should we process it asynchronously? */
+ if (req1->options & DRSUAPI_DRS_ASYNC_OP) {
+ cb_data = NULL;
+ } else {
+ cb_data = talloc_zero(msg, struct drepl_replica_sync_cb_data);
+ if (!cb_data) {
+ DEBUG(0,(__location__ ": Not enought memory!"));
+ REPLICA_SYNC_FAIL(WERR_DS_DRA_INTERNAL_ERROR);
+ }
+
+ cb_data->msg = msg;
+ cb_data->r = r;
+ cb_data->werr_last_failure = WERR_OK;
+ }
+
/* collect source DSAs to sync with */
if (req1->options & DRSUAPI_DRS_SYNC_ALL) {
for (dsa = p->sources; dsa; dsa = dsa->next) {
/* schedule replication item */
- werr = dreplsrv_schedule_partition_pull_source(service, dsa,
- DRSUAPI_EXOP_NONE, 0,
- NULL, NULL);
+ werr = _drepl_schedule_replication(service, dsa, nc, cb_data, msg);
if (!W_ERROR_IS_OK(werr)) {
- DEBUG(0,("%s: failed setup of sync of partition (%s, %s, %s) - %s\n",
- __FUNCTION__,
- GUID_string(msg, &nc->guid),
- nc->dn,
- dsa->repsFrom1->other_info->dns_name,
- win_errstr(werr)));
REPLICA_SYNC_FAIL(werr);
}
- /* log we've scheduled replication item */
- DEBUG(3,("%s: forcing sync of partition (%s, %s, %s)\n",
- __FUNCTION__,
- GUID_string(msg, &nc->guid),
- nc->dn,
- dsa->repsFrom1->other_info->dns_name));
}
} else {
if (req1->options & DRSUAPI_DRS_SYNC_BYNAME) {
@@ -201,24 +304,10 @@ static NTSTATUS drepl_replica_sync(struct irpc_message *msg,
}
/* schedule replication item */
- werr = dreplsrv_schedule_partition_pull_source(service, dsa,
- DRSUAPI_EXOP_NONE, 0,
- NULL, NULL);
+ werr = _drepl_schedule_replication(service, dsa, nc, cb_data, msg);
if (!W_ERROR_IS_OK(werr)) {
- DEBUG(0,("%s: failed setup of sync of partition (%s, %s, %s) - %s\n",
- __FUNCTION__,
- GUID_string(msg, &nc->guid),
- nc->dn,
- dsa->repsFrom1->other_info->dns_name,
- win_errstr(werr)));
REPLICA_SYNC_FAIL(werr);
}
- /* log we've scheduled replication item */
- DEBUG(3,("%s: forcing sync of partition (%s, %s, %s)\n",
- __FUNCTION__,
- GUID_string(msg, &nc->guid),
- nc->dn,
- dsa->repsFrom1->other_info->dns_name));
}
/* if we got here, everything is OK */