Change the why DP clients identify

Mirrors what we have done with the monitor.

15 files changed, 340 insertions, 321 deletions

diff --git a/server/Makefile.am b/server/Makefile.am
index 2d2c65f1..9616a391 100644
--- a/server/Makefile.am
+++ b/server/Makefile.am
@@ -230,7 +230,6 @@ sssd_LDADD = \
 sssd_nss_SOURCES = \
     responder/nss/nsssrv.c \
     responder/nss/nsssrv_cmd.c \
-    responder/nss/nsssrv_dp.c \
     responder/nss/nsssrv_nc.c \
     $(SSSD_UTIL_OBJ) \
     $(SSSD_RESPONDER_OBJ)
diff --git a/server/providers/data_provider.c b/server/providers/data_provider.c
index 7fcd168d..278f33be 100644
--- a/server/providers/data_provider.c
+++ b/server/providers/data_provider.c
@@ -58,6 +58,8 @@ struct dp_ctx {
 struct dp_client {
     struct dp_ctx *dpctx;
     struct sbus_connection *conn;
+    struct tevent_timer *timeout;
+    bool initialized;
 };
 
 struct dp_backend {
@@ -96,18 +98,22 @@ struct sbus_interface monitor_dp_interface = {
     NULL
 };
 
-static int dp_get_account_info(DBusMessage *message, struct sbus_connection *conn);
+static int client_registration(DBusMessage *message,
+                               struct sbus_connection *conn);
+static int dp_get_account_info(DBusMessage *message,
+                               struct sbus_connection *conn);
 static int dp_pamhandler(DBusMessage *message, struct sbus_connection *conn);
 
 struct sbus_method dp_methods[] = {
+    { DP_SRV_METHOD_REGISTER, client_registration },
     { DP_SRV_METHOD_GETACCTINFO, dp_get_account_info },
     { DP_SRV_METHOD_PAMHANDLER, dp_pamhandler },
     { NULL, NULL }
 };
 
 struct sbus_interface dp_interface = {
-    DATA_PROVIDER_INTERFACE,
-    DATA_PROVIDER_PATH,
+    DP_SRV_INTERFACE,
+    DP_SRV_PATH,
     SBUS_DEFAULT_VTABLE,
     dp_methods,
     NULL
@@ -171,20 +177,27 @@ static int dp_monitor_init(struct dp_ctx *dpctx)
     return EOK;
 }
 
-static void be_identity_check(DBusPendingCall *pending, void *data);
-static void be_got_account_info(DBusPendingCall *pending, void *data);
+static void init_timeout(struct tevent_context *ev,
+                         struct tevent_timer *te,
+                         struct timeval t, void *ptr)
+{
+    struct dp_client *dpcli;
+
+    DEBUG(2, ("Client timed out before Identification!\n"));
+
+    dpcli = talloc_get_type(ptr, struct dp_client);
 
-static int dbus_dp_init(struct sbus_connection *conn, void *data)
+    sbus_disconnect(dpcli->conn);
+    talloc_zfree(dpcli);
+}
+
+static int dp_client_init(struct sbus_connection *conn, void *data)
 {
     struct dp_ctx *dpctx;
     struct dp_client *dpcli;
-    DBusMessage *msg;
-    DBusPendingCall *pending_reply;
-    DBusConnection *dbus_conn;
-    dbus_bool_t dbret;
+    struct timeval tv;
 
     dpctx = talloc_get_type(data, struct dp_ctx);
-    dbus_conn = sbus_get_connection(conn);
 
     /* hang off this memory to the connection so that when the connection
      * is freed we can potentially call a destructor */
@@ -192,173 +205,153 @@ static int dbus_dp_init(struct sbus_connection *conn, void *data)
     dpcli = talloc(conn, struct dp_client);
     if (!dpcli) {
         DEBUG(0,("Out of memory?!\n"));
-        talloc_free(conn);
+        talloc_zfree(conn);
         return ENOMEM;
     }
     dpcli->dpctx = dpctx;
     dpcli->conn = conn;
+    dpcli->initialized = false;
 
-    /* Attach the client context to the connection context, so that it is
-     * always available when we need to manage the connection. */
-    sbus_conn_set_private_data(conn, dpcli);
+    /* 5 seconds should be plenty */
+    tv = tevent_timeval_current_ofs(5, 0);
 
-    /* identify the connecting client */
-    msg = dbus_message_new_method_call(NULL,
-                                       DP_CLI_PATH,
-                                       DP_CLI_INTERFACE,
-                                       DP_CLI_METHOD_IDENTITY);
-    if (msg == NULL) {
+    dpcli->timeout = tevent_add_timer(dpctx->ev, dpcli,
+                                      tv, init_timeout, dpcli);
+    if (!dpcli->timeout) {
         DEBUG(0,("Out of memory?!\n"));
-        talloc_free(conn);
+        talloc_zfree(conn);
         return ENOMEM;
     }
-    dbret = dbus_connection_send_with_reply(dbus_conn, msg, &pending_reply,
-                                            600000 /* TODO: set timeout */);
-    if (!dbret || pending_reply == NULL) {
-        /*
-         * Critical Failure
-         * We can't communicate on this connection
-         * We'll drop it using the default destructor.
-         */
-        DEBUG(0, ("D-BUS send failed.\n"));
-        talloc_free(conn);
-        dbus_message_unref(msg);
-        return EIO;
-    }
 
-    /* Set up the reply handler */
-    dbus_pending_call_set_notify(pending_reply, be_identity_check, dpcli, NULL);
-    dbus_message_unref(msg);
+    /* Attach the client context to the connection context, so that it is
+     * always available when we need to manage the connection. */
+    sbus_conn_set_private_data(conn, dpcli);
 
     return EOK;
 }
 
-static void be_identity_check(DBusPendingCall *pending, void *data)
+static int client_registration(DBusMessage *message,
+                               struct sbus_connection *conn)
 {
+    dbus_uint16_t version = DATA_PROVIDER_VERSION;
     struct dp_backend *dpbe;
     struct dp_frontend *dpfe;
     struct dp_client *dpcli;
     DBusMessage *reply;
-    DBusConnection *dbus_conn;
     DBusError dbus_error;
     dbus_uint16_t cli_ver;
     dbus_uint16_t cli_type;
     char *cli_name;
     char *cli_domain;
-    dbus_bool_t ret;
-    int type;
+    dbus_bool_t dbret;
+    void *data;
 
+    data = sbus_conn_get_private_data(conn);
     dpcli = talloc_get_type(data, struct dp_client);
-    dbus_conn = sbus_get_connection(dpcli->conn);
-    dbus_error_init(&dbus_error);
-
-    reply = dbus_pending_call_steal_reply(pending);
-    if (!reply) {
-        /* reply should never be null. This function shouldn't be called
-         * until reply is valid or timeout has occurred. If reply is NULL
-         * here, something is seriously wrong and we should bail out.
-         */
-        DEBUG(0, ("Severe error. A reply callback was called but no reply was received and no timeout occurred\n"));
-
-        /* Destroy this connection */
-        sbus_disconnect(dpcli->conn);
-        goto done;
+    if (!dpcli) {
+        DEBUG(0, ("Connection holds no valid init data\n"));
+        return EINVAL;
     }
 
-    type = dbus_message_get_type(reply);
-    switch (type) {
-    case DBUS_MESSAGE_TYPE_METHOD_RETURN:
-        ret = dbus_message_get_args(reply, &dbus_error,
-                                    DBUS_TYPE_UINT16, &cli_type,
-                                    DBUS_TYPE_UINT16, &cli_ver,
-                                    DBUS_TYPE_STRING, &cli_name,
-                                    DBUS_TYPE_STRING, &cli_domain,
-                                    DBUS_TYPE_INVALID);
-        if (!ret) {
-            DEBUG(1,("be_identity_check failed, to parse message, killing connection\n"));
-            if (dbus_error_is_set(&dbus_error)) dbus_error_free(&dbus_error);
-            sbus_disconnect(dpcli->conn);
-            goto done;
-        }
+    /* First thing, cancel the timeout */
+    talloc_zfree(dpcli->timeout);
 
-        switch (cli_type & DP_CLI_TYPE_MASK) {
-        case DP_CLI_BACKEND:
-            dpbe = talloc_zero(dpcli->dpctx, struct dp_backend);
-            if (!dpbe) {
-                DEBUG(0, ("Out of memory!\n"));
-                sbus_disconnect(dpcli->conn);
-                goto done;
-            }
+    dbus_error_init(&dbus_error);
 
-            dpbe->name = talloc_strdup(dpbe, cli_name);
-            dpbe->domain = talloc_strdup(dpbe, cli_domain);
-            if (!dpbe->name || !dpbe->domain) {
-                DEBUG(0, ("Out of memory!\n"));
-                sbus_disconnect(dpcli->conn);
-                goto done;
-            }
+    dbret = dbus_message_get_args(message, &dbus_error,
+                                  DBUS_TYPE_UINT16, &cli_type,
+                                  DBUS_TYPE_UINT16, &cli_ver,
+                                  DBUS_TYPE_STRING, &cli_name,
+                                  DBUS_TYPE_STRING, &cli_domain,
+                                  DBUS_TYPE_INVALID);
+    if (!dbret) {
+        DEBUG(1, ("Failed to parse message, killing connection\n"));
+        if (dbus_error_is_set(&dbus_error)) dbus_error_free(&dbus_error);
+        sbus_disconnect(conn);
+        /* FIXME: should we just talloc_zfree(conn) ? */
+        return EIO;
+    }
 
-            dpbe->dpcli = dpcli;
+    switch (cli_type & DP_CLI_TYPE_MASK) {
+    case DP_CLI_BACKEND:
+        dpbe = talloc_zero(dpcli->dpctx, struct dp_backend);
+        if (!dpbe) {
+            DEBUG(0, ("Out of memory!\n"));
+            sbus_disconnect(conn);
+            return ENOMEM;
+        }
 
-            DLIST_ADD(dpcli->dpctx->be_list, dpbe);
+        dpbe->name = talloc_strdup(dpbe, cli_name);
+        dpbe->domain = talloc_strdup(dpbe, cli_domain);
+        if (!dpbe->name || !dpbe->domain) {
+            DEBUG(0, ("Out of memory!\n"));
+            sbus_disconnect(conn);
+            return ENOMEM;
+        }
 
-            DEBUG(4, ("Added Backend client [%s], for domain [%s]\n",
-                      dpbe->name, dpbe->domain));
+        dpbe->dpcli = dpcli;
 
-            talloc_set_destructor((TALLOC_CTX *)dpbe, dp_backend_destructor);
-            break;
+        DLIST_ADD(dpcli->dpctx->be_list, dpbe);
 
-        case DP_CLI_FRONTEND:
-            dpfe = talloc_zero(dpcli->dpctx, struct dp_frontend);
-            if (!dpfe) {
-                DEBUG(0, ("Out of memory!\n"));
-                sbus_disconnect(dpcli->conn);
-                goto done;
-            }
+        DEBUG(4, ("Added Backend client [%s], for domain [%s]\n",
+                  dpbe->name, dpbe->domain));
 
-            dpfe->name = talloc_strdup(dpfe, cli_name);
-            if (!dpfe->name) {
-                DEBUG(0, ("Out of memory!\n"));
-                sbus_disconnect(dpcli->conn);
-                goto done;
-            }
+        talloc_set_destructor((TALLOC_CTX *)dpbe, dp_backend_destructor);
+        break;
 
-            dpfe->dpcli = dpcli;
+    case DP_CLI_FRONTEND:
+        dpfe = talloc_zero(dpcli->dpctx, struct dp_frontend);
+        if (!dpfe) {
+            DEBUG(0, ("Out of memory!\n"));
+            sbus_disconnect(conn);
+            return ENOMEM;
+        }
 
-            DLIST_ADD(dpcli->dpctx->fe_list, dpfe);
+        dpfe->name = talloc_strdup(dpfe, cli_name);
+        if (!dpfe->name) {
+            DEBUG(0, ("Out of memory!\n"));
+            sbus_disconnect(conn);
+            return ENOMEM;
+        }
 
-            DEBUG(4, ("Added Frontend client [%s]\n", dpfe->name));
+        dpfe->dpcli = dpcli;
 
-            talloc_set_destructor((TALLOC_CTX *)dpfe, dp_frontend_destructor);
-            break;
+        DLIST_ADD(dpcli->dpctx->fe_list, dpfe);
 
-        default:
-            DEBUG(1, ("Unknown client type, killing connection\n"));
-            sbus_disconnect(dpcli->conn);
-            goto done;
-        }
+        DEBUG(4, ("Added Frontend client [%s]\n", dpfe->name));
 
-        /* Set up the destructor for this service */
+        talloc_set_destructor((TALLOC_CTX *)dpfe, dp_frontend_destructor);
         break;
 
-    case DBUS_MESSAGE_TYPE_ERROR:
-        DEBUG(0,("getIdentity returned an error [%s], closing connection.\n",
-                 dbus_message_get_error_name(reply)));
-        /* Falling through to default intentionally*/
     default:
-        /*
-         * Timeout or other error occurred or something
-         * unexpected happened.
-         * It doesn't matter which, because either way we
-         * know that this connection isn't trustworthy.
-         * We'll destroy it now.
-         */
-        sbus_disconnect(dpcli->conn);
+        DEBUG(1, ("Unknown client type, killing connection\n"));
+        sbus_disconnect(conn);
+        return EIO;
     }
 
-done:
-    dbus_pending_call_unref(pending);
+    /* reply that all is ok */
+    reply = dbus_message_new_method_return(message);
+    if (!reply) {
+        DEBUG(0, ("Dbus Out of memory!\n"));
+        return ENOMEM;
+    }
+
+    dbret = dbus_message_append_args(reply,
+                                     DBUS_TYPE_UINT16, &version,
+                                     DBUS_TYPE_INVALID);
+    if (!dbret) {
+        DEBUG(0, ("Failed to build dbus reply\n"));
+        dbus_message_unref(reply);
+        sbus_disconnect(conn);
+        return EIO;
+    }
+
+    /* send reply back */
+    sbus_conn_send_reply(conn, reply);
     dbus_message_unref(reply);
+
+    dpcli->initialized = true;
+    return EOK;
 }
 
 static void be_got_account_info(DBusPendingCall *pending, void *data)
@@ -954,7 +947,7 @@ static int dp_srv_init(struct dp_ctx *dpctx)
 
     ret = sbus_new_server(dpctx, dpctx->ev, dpbus_address,
                           &dp_interface, &dpctx->sbus_srv,
-                          dbus_dp_init, dpctx);
+                          dp_client_init, dpctx);
     if (ret != EOK) {
         goto done;
     }
diff --git a/server/providers/data_provider.h b/server/providers/data_provider.h
index b747e69b..9c93bfec 100644
--- a/server/providers/data_provider.h
+++ b/server/providers/data_provider.h
@@ -58,11 +58,11 @@
 #define DP_CLI_PROVIDE_PAM (1<<9)
 #define DP_CLI_PROVIDE_POLICY (1<<10)
 
-#define DP_CLI_METHOD_IDENTITY "getIdentity"
 #define DP_CLI_METHOD_ONLINE "getOnline"
 #define DP_CLI_METHOD_GETACCTINFO "getAccountInfo"
 #define DP_CLI_METHOD_PAMHANDLER "pamHandler"
 
+#define DP_SRV_METHOD_REGISTER "RegisterService"
 #define DP_SRV_METHOD_GETACCTINFO "getAccountInfo"
 #define DP_SRV_METHOD_PAMHANDLER "pamHandler"
 
@@ -131,4 +131,9 @@ bool dp_unpack_pam_request(DBusMessage *msg, struct pam_data *pd, DBusError *dbu
 bool dp_pack_pam_response(DBusMessage *msg, struct pam_data *pd);
 bool dp_unpack_pam_response(DBusMessage *msg, struct pam_data *pd, DBusError *dbus_error);
 
+int dp_common_send_id(struct sbus_connection *conn,
+                      uint16_t cli_type, uint16_t version,
+                      const char *name, const char *domain);
+
+
 #endif /* __DATA_PROVIDER_ */
diff --git a/server/providers/data_provider_be.c b/server/providers/data_provider_be.c
index 46f8db51..c92289b6 100644
--- a/server/providers/data_provider_be.c
+++ b/server/providers/data_provider_be.c
@@ -62,13 +62,11 @@ struct sbus_interface monitor_be_interface = {
     NULL
 };
 
-static int be_identity(DBusMessage *message, struct sbus_connection *conn);
 static int be_check_online(DBusMessage *message, struct sbus_connection *conn);
 static int be_get_account_info(DBusMessage *message, struct sbus_connection *conn);
 static int be_pam_handler(DBusMessage *message, struct sbus_connection *conn);
 
 struct sbus_method be_methods[] = {
-    { DP_CLI_METHOD_IDENTITY, be_identity },
     { DP_CLI_METHOD_ONLINE, be_check_online },
     { DP_CLI_METHOD_GETACCTINFO, be_get_account_info },
     { DP_CLI_METHOD_PAMHANDLER, be_pam_handler },
@@ -76,8 +74,8 @@ struct sbus_method be_methods[] = {
 };
 
 struct sbus_interface be_interface = {
-    DATA_PROVIDER_INTERFACE,
-    DATA_PROVIDER_PATH,
+    DP_CLI_INTERFACE,
+    DP_CLI_PATH,
     SBUS_DEFAULT_VTABLE,
     be_methods,
     NULL
@@ -92,44 +90,6 @@ static struct bet_data bet_data[] = {
     {BET_MAX, NULL, NULL}
 };
 
-static int be_identity(DBusMessage *message, struct sbus_connection *conn)
-{
-    dbus_uint16_t version = DATA_PROVIDER_VERSION;
-    dbus_uint16_t clitype = DP_CLI_BACKEND;
-    struct be_ctx *ctx;
-    DBusMessage *reply;
-    dbus_bool_t ret;
-    void *user_data;
-
-    user_data = sbus_conn_get_private_data(conn);
-    if (!user_data) return EINVAL;
-    ctx = talloc_get_type(user_data, struct be_ctx);
-    if (!ctx) return EINVAL;
-
-    DEBUG(4,("Sending ID reply: (%d,%d,%s,%s)\n",
-             clitype, version, ctx->name, ctx->domain->name));
-
-    reply = dbus_message_new_method_return(message);
-    if (!reply) return ENOMEM;
-
-    ret = dbus_message_append_args(reply,
-                                   DBUS_TYPE_UINT16, &clitype,
-                                   DBUS_TYPE_UINT16, &version,
-                                   DBUS_TYPE_STRING, &ctx->name,
-                                   DBUS_TYPE_STRING, &ctx->domain->name,
-                                   DBUS_TYPE_INVALID);
-    if (!ret) {
-        dbus_message_unref(reply);
-        return EIO;
-    }
-
-    /* send reply back */
-    sbus_conn_send_reply(conn, reply);
-    dbus_message_unref(reply);
-
-    return EOK;
-}
-
 struct be_async_req {
     be_req_fn_t fn;
     struct be_req *req;
@@ -661,6 +621,15 @@ static int be_cli_init(struct be_ctx *ctx)
         return ret;
     }
 
+    /* Identify ourselves to the data provider */
+    ret = dp_common_send_id(ctx->dp_conn,
+                            DP_CLI_BACKEND, DATA_PROVIDER_VERSION,
+                            ctx->name, ctx->domain->name);
+    if (ret != EOK) {
+        DEBUG(0, ("Failed to identify to the data provider!\n"));
+        return ret;
+    }
+
     /* Enable automatic reconnection to the Data Provider */
     ret = confdb_get_int(ctx->cdb, ctx, SERVICE_CONF_ENTRY,
                          "reconnection_retries", 3, &max_retries);
@@ -686,11 +655,21 @@ static void be_cli_reconnect_init(struct sbus_connection *conn, int status, void
     /* Did we reconnect successfully? */
     if (status == SBUS_RECONNECT_SUCCESS) {
         DEBUG(1, ("Reconnected to the Data Provider.\n"));
-        return;
+
+        /* Identify ourselves to the data provider */
+        ret = dp_common_send_id(be_ctx->dp_conn,
+                                DP_CLI_BACKEND, DATA_PROVIDER_VERSION,
+                                be_ctx->name, be_ctx->domain->name);
+        if (ret != EOK) {
+            DEBUG(0, ("Failed to send id to the data provider!\n"));
+        } else {
+            return;
+        }
     }
 
     /* Handle failure */
     DEBUG(0, ("Could not reconnect to data provider.\n"));
+
     /* Kill the backend and let the monitor restart it */
     ret = be_finalize(be_ctx);
     if (ret != EOK) {
diff --git a/server/providers/dp_auth_util.c b/server/providers/dp_auth_util.c
index 7219917d..492ac7cf 100644
--- a/server/providers/dp_auth_util.c
+++ b/server/providers/dp_auth_util.c
@@ -222,3 +222,120 @@ bool dp_unpack_pam_response(DBusMessage *msg, struct pam_data *pd, DBusError *db
     return true;
 }
 
+static void id_callback(DBusPendingCall *pending, void *ptr)
+{
+    DBusMessage *reply;
+    DBusError dbus_error;
+    dbus_bool_t ret;
+    dbus_uint16_t dp_ver;
+    int type;
+
+    dbus_error_init(&dbus_error);
+
+    reply = dbus_pending_call_steal_reply(pending);
+    if (!reply) {
+        /* reply should never be null. This function shouldn't be called
+         * until reply is valid or timeout has occurred. If reply is NULL
+         * here, something is seriously wrong and we should bail out.
+         */
+        DEBUG(0, ("Severe error. A reply callback was called but no"
+                  " reply was received and no timeout occurred\n"));
+
+        /* FIXME: Destroy this connection ? */
+        goto done;
+    }
+
+    type = dbus_message_get_type(reply);
+    switch (type) {
+    case DBUS_MESSAGE_TYPE_METHOD_RETURN:
+        ret = dbus_message_get_args(reply, &dbus_error,
+                                    DBUS_TYPE_UINT16, &dp_ver,
+                                    DBUS_TYPE_INVALID);
+        if (!ret) {
+            DEBUG(1, ("Failed to parse message\n"));
+            if (dbus_error_is_set(&dbus_error)) dbus_error_free(&dbus_error);
+            /* FIXME: Destroy this connection ? */
+            goto done;
+        }
+
+        DEBUG(4, ("Got id ack and version (%d) from DP\n", dp_ver));
+
+        break;
+
+    case DBUS_MESSAGE_TYPE_ERROR:
+        DEBUG(0,("The Monitor returned an error [%s]\n",
+                 dbus_message_get_error_name(reply)));
+        /* Falling through to default intentionally*/
+    default:
+        /*
+         * Timeout or other error occurred or something
+         * unexpected happened.
+         * It doesn't matter which, because either way we
+         * know that this connection isn't trustworthy.
+         * We'll destroy it now.
+         */
+
+        /* FIXME: Destroy this connection ? */
+        break;
+    }
+
+done:
+    dbus_pending_call_unref(pending);
+    dbus_message_unref(reply);
+}
+
+int dp_common_send_id(struct sbus_connection *conn,
+                      uint16_t cli_type, uint16_t version,
+                      const char *name, const char *domain)
+{
+    DBusPendingCall *pending_reply;
+    DBusConnection *dbus_conn;
+    DBusMessage *msg;
+    dbus_bool_t ret;
+
+    dbus_conn = sbus_get_connection(conn);
+
+    /* create the message */
+    msg = dbus_message_new_method_call(NULL,
+                                       DP_SRV_PATH,
+                                       DP_SRV_INTERFACE,
+                                       DP_SRV_METHOD_REGISTER);
+    if (msg == NULL) {
+        DEBUG(0, ("Out of memory?!\n"));
+        return ENOMEM;
+    }
+
+    DEBUG(4, ("Sending ID to DP: (%d,%d,%s,%s)\n",
+              cli_type, version, name, domain));
+
+    ret = dbus_message_append_args(msg,
+                                   DBUS_TYPE_UINT16, &cli_type,
+                                   DBUS_TYPE_UINT16, &version,
+                                   DBUS_TYPE_STRING, &name,
+                                   DBUS_TYPE_STRING, &domain,
+                                   DBUS_TYPE_INVALID);
+    if (!ret) {
+        DEBUG(1, ("Failed to build message\n"));
+        return EIO;
+    }
+
+    ret = dbus_connection_send_with_reply(dbus_conn, msg, &pending_reply,
+                                          30000 /* TODO: set timeout */);
+    if (!ret || !pending_reply) {
+        /*
+         * Critical Failure
+         * We can't communicate on this connection
+         * We'll drop it using the default destructor.
+         */
+        DEBUG(0, ("D-BUS send failed.\n"));
+        dbus_message_unref(msg);
+        return EIO;
+    }
+
+    /* Set up the reply handler */
+    dbus_pending_call_set_notify(pending_reply, id_callback, NULL, NULL);
+    dbus_message_unref(msg);
+
+    return EOK;
+}
+
diff --git a/server/providers/dp_interfaces.h b/server/providers/dp_interfaces.h
index faba00c5..0b75f083 100644
--- a/server/providers/dp_interfaces.h
+++ b/server/providers/dp_interfaces.h
@@ -24,8 +24,8 @@
 
 /* Data Provider */
 
-#define DATA_PROVIDER_INTERFACE "org.freedesktop.sssd.dataprovider"
-#define DATA_PROVIDER_PATH "/org/freedesktop/sssd/dataprovider"
+#define DP_SRV_INTERFACE "org.freedesktop.sssd.dataprovider"
+#define DP_SRV_PATH "/org/freedesktop/sssd/dataprovider"
 
 #define DP_METHOD_CHECK_ONLINE "isOnline"
 
diff --git a/server/responder/common/responder.h b/server/responder/common/responder.h
index f4187650..881c3306 100644
--- a/server/responder/common/responder.h
+++ b/server/responder/common/responder.h
@@ -104,8 +104,10 @@ int sss_process_init(TALLOC_CTX *mem_ctx,
                      const char *confdb_service_path,
                      const char *svc_name,
                      uint16_t svc_version,
-                     struct sbus_interface *dp_intf,
                      struct sbus_interface *monitor_intf,
+                     uint16_t cli_type, uint16_t cli_version,
+                     const char *cli_name, const char *cli_domain,
+                     struct sbus_interface *dp_intf,
                      struct resp_ctx **responder_ctx);
 
 int sss_parse_name(TALLOC_CTX *memctx,
@@ -119,7 +121,9 @@ int sss_cmd_get_version(struct cli_ctx *cctx);
 struct cli_protocol_version *register_cli_protocol_version(void);
 
 /* responder_dp.c */
-int sss_dp_init(struct resp_ctx *rctx, struct sbus_interface *intf);
+int sss_dp_init(struct resp_ctx *rctx, struct sbus_interface *intf,
+                uint16_t cli_type, uint16_t cli_version,
+                const char *cli_name, const char *cli_domain);
 
 #define NSS_DP_USER 1
 #define NSS_DP_GROUP 2
diff --git a/server/responder/common/responder_common.c b/server/responder/common/responder_common.c
index 75e72103..cf06c3ca 100644
--- a/server/responder/common/responder_common.c
+++ b/server/responder/common/responder_common.c
@@ -455,8 +455,10 @@ int sss_process_init(TALLOC_CTX *mem_ctx,
                      const char *confdb_service_path,
                      const char *svc_name,
                      uint16_t svc_version,
-                     struct sbus_interface *dp_intf,
                      struct sbus_interface *monitor_intf,
+                     uint16_t cli_type, uint16_t cli_version,
+                     const char *cli_name, const char *cli_domain,
+                     struct sbus_interface *dp_intf,
                      struct resp_ctx **responder_ctx)
 {
     struct resp_ctx *rctx;
@@ -486,7 +488,9 @@ int sss_process_init(TALLOC_CTX *mem_ctx,
         return ret;
     }
 
-    ret = sss_dp_init(rctx, dp_intf);
+    ret = sss_dp_init(rctx, dp_intf,
+                      cli_type, cli_version,
+                      cli_name, cli_domain);
     if (ret != EOK) {
         DEBUG(0, ("fatal error setting up backend connector\n"));
         return ret;
diff --git a/server/responder/common/responder_dp.c b/server/responder/common/responder_dp.c
index dc810fd9..fd13208f 100644
--- a/server/responder/common/responder_dp.c
+++ b/server/responder/common/responder_dp.c
@@ -11,6 +11,12 @@
 struct sss_dp_pvt_ctx {
     struct resp_ctx *rctx;
     struct sbus_interface *intf;
+
+    uint16_t cli_type;
+    uint16_t cli_version;
+    const char *cli_name;
+    const char *cli_domain;
+
     time_t last_retry;
     int retries;
 };
@@ -52,6 +58,17 @@ static void sss_dp_conn_reconnect(struct sss_dp_pvt_ctx *pvt)
     ret = sbus_client_init(rctx, rctx->ev, sbus_address,
                            pvt->intf, &rctx->dp_conn,
                            sss_dp_conn_destructor, pvt);
+
+    if (ret == EOK) {
+        /* Identify ourselves to the data provider */
+        ret = dp_common_send_id(rctx->dp_conn,
+                                pvt->cli_type, pvt->cli_version,
+                                pvt->cli_name, pvt->cli_domain);
+        if (ret != EOK) {
+            DEBUG(0, ("Failed to identify to the data provider!\n"));
+        }
+    }
+
     if (ret != EOK) {
         DEBUG(4, ("Failed to reconnect [%d(%s)]!\n", ret, strerror(ret)));
 
@@ -97,7 +114,9 @@ int sss_dp_conn_destructor(void *data)
     return 0;
 }
 
-int sss_dp_init(struct resp_ctx *rctx, struct sbus_interface *dp_intf)
+int sss_dp_init(struct resp_ctx *rctx, struct sbus_interface *dp_intf,
+                uint16_t cli_type, uint16_t cli_version,
+                const char *cli_name, const char *cli_domain)
 {
     struct sss_dp_pvt_ctx *pvt;
 
@@ -106,6 +125,12 @@ int sss_dp_init(struct resp_ctx *rctx, struct sbus_interface *dp_intf)
 
     pvt->rctx = rctx;
     pvt->intf = dp_intf;
+    pvt->cli_type = cli_type;
+    pvt->cli_version = cli_version;
+    pvt->cli_name = talloc_strdup(pvt, cli_name);
+    if (!pvt->cli_name) return ENOMEM;
+    pvt->cli_domain = talloc_strdup(pvt, cli_domain);
+    if (!pvt->cli_domain) return ENOMEM;
 
     sss_dp_conn_reconnect(pvt);
 
diff --git a/server/responder/nss/nsssrv.c b/server/responder/nss/nsssrv.c
index e4b121bf..456c6292 100644
--- a/server/responder/nss/nsssrv.c
+++ b/server/responder/nss/nsssrv.c
@@ -203,12 +203,22 @@ static void nss_dp_reconnect_init(struct sbus_connection *conn, int status, void
     nss_shutdown(rctx);
 }
 
+static struct sbus_method nss_dp_methods[] = {
+    { NULL, NULL }
+};
+
+struct sbus_interface nss_dp_interface = {
+    DP_CLI_INTERFACE,
+    DP_CLI_PATH,
+    SBUS_DEFAULT_VTABLE,
+    nss_dp_methods,
+    NULL
+};
 
 int nss_process_init(TALLOC_CTX *mem_ctx,
                      struct tevent_context *ev,
                      struct confdb_ctx *cdb)
 {
-    struct sbus_interface *nss_dp_interface;
     struct sss_cmd_table *nss_cmds;
     struct nss_ctx *nctx;
     int ret, max_retries;
@@ -225,7 +235,6 @@ int nss_process_init(TALLOC_CTX *mem_ctx,
         return ret;
     }
 
-    nss_dp_interface = get_nss_dp_interface();
     nss_cmds = get_nss_cmds();
 
     ret = sss_process_init(nctx, ev, cdb,
@@ -234,8 +243,11 @@ int nss_process_init(TALLOC_CTX *mem_ctx,
                            NSS_SRV_CONFIG,
                            NSS_SBUS_SERVICE_NAME,
                            NSS_SBUS_SERVICE_VERSION,
-                           nss_dp_interface,
                            &monitor_nss_interface,
+                           DP_CLI_FRONTEND,
+                           DATA_PROVIDER_VERSION,
+                           "NSS", "",
+                           &nss_dp_interface,
                            &nctx->rctx);
     if (ret != EOK) {
         return ret;
diff --git a/server/responder/nss/nsssrv.h b/server/responder/nss/nsssrv.h
index f34456f4..0d3124c7 100644
--- a/server/responder/nss/nsssrv.h
+++ b/server/responder/nss/nsssrv.h
@@ -66,8 +66,6 @@ struct nss_packet;
 
 int nss_cmd_execute(struct cli_ctx *cctx);
 
-/* from nsssrv_dp.c */
-struct sbus_interface *get_nss_dp_interface(void);
 struct sss_cmd_table *get_nss_cmds(void);
 
 #endif /* __NSSSRV_H__ */
diff --git a/server/responder/nss/nsssrv_dp.c b/server/responder/nss/nsssrv_dp.c
deleted file mode 100644
index 92a2d441..00000000
--- a/server/responder/nss/nsssrv_dp.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
-   SSSD
-
-   NSS Responder - Data Provider Interfaces
-
-   Copyright (C) Simo Sorce <ssorce@redhat.com>	2008
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include <sys/time.h>
-#include <time.h>
-#include "util/util.h"
-#include "responder/common/responder_packet.h"
-#include "responder/nss/nsssrv.h"
-#include "providers/data_provider.h"
-#include "sbus/sbus_client.h"
-#include "providers/dp_sbus.h"
-
-static int nss_dp_identity(DBusMessage *message, struct sbus_connection *conn)
-{
-    dbus_uint16_t version = DATA_PROVIDER_VERSION;
-    dbus_uint16_t clitype = DP_CLI_FRONTEND;
-    const char *cliname = "NSS";
-    const char *nullname = "";
-    DBusMessage *reply;
-    dbus_bool_t ret;
-
-    DEBUG(4,("Sending ID reply: (%d,%d,%s)\n",
-             clitype, version, cliname));
-
-    reply = dbus_message_new_method_return(message);
-    if (!reply) return ENOMEM;
-
-    ret = dbus_message_append_args(reply,
-                                   DBUS_TYPE_UINT16, &clitype,
-                                   DBUS_TYPE_UINT16, &version,
-                                   DBUS_TYPE_STRING, &cliname,
-                                   DBUS_TYPE_STRING, &nullname,
-                                   DBUS_TYPE_INVALID);
-    if (!ret) {
-        dbus_message_unref(reply);
-        return EIO;
-    }
-
-    /* send reply back */
-    sbus_conn_send_reply(conn, reply);
-    dbus_message_unref(reply);
-
-    return EOK;
-}
-
-static struct sbus_method nss_dp_methods[] = {
-    { DP_CLI_METHOD_IDENTITY, nss_dp_identity },
-    { NULL, NULL }
-};
-
-struct sbus_interface nss_dp_interface = {
-    DATA_PROVIDER_INTERFACE,
-    DATA_PROVIDER_PATH,
-    SBUS_DEFAULT_VTABLE,
-    nss_dp_methods,
-    NULL
-};
-
-struct sbus_interface *get_nss_dp_interface(void)
-{
-    return &nss_dp_interface;
-}
diff --git a/server/responder/pam/pamsrv.c b/server/responder/pam/pamsrv.c
index c0f0ca40..6f92eb96 100644
--- a/server/responder/pam/pamsrv.c
+++ b/server/responder/pam/pamsrv.c
@@ -125,13 +125,24 @@ static int pam_process_init(struct main_context *main_ctx,
     return EOK;
 }
 
+static struct sbus_method pam_dp_methods[] = {
+        { NULL, NULL }
+};
+
+struct sbus_interface pam_dp_interface = {
+    DP_CLI_INTERFACE,
+    DP_CLI_PATH,
+    SBUS_DEFAULT_VTABLE,
+    pam_dp_methods,
+    NULL
+};
+
 int main(int argc, const char *argv[])
 {
     int opt;
     poptContext pc;
     struct main_context *main_ctx;
     int ret;
-    struct sbus_interface *pam_dp_interface;
     struct sss_cmd_table *sss_cmds;
     struct resp_ctx *rctx;
 
@@ -164,7 +175,6 @@ int main(int argc, const char *argv[])
         DEBUG(2, ("Could not set up to exit when parent process does\n"));
     }
 
-    pam_dp_interface = get_pam_dp_interface();
     sss_cmds = register_sss_cmds();
     ret = sss_process_init(main_ctx,
                            main_ctx->event_ctx,
@@ -175,8 +185,11 @@ int main(int argc, const char *argv[])
                            PAM_SRV_CONFIG,
                            PAM_SBUS_SERVICE_NAME,
                            PAM_SBUS_SERVICE_VERSION,
-                           pam_dp_interface,
                            &monitor_pam_interface,
+                           DP_CLI_FRONTEND,
+                           DATA_PROVIDER_VERSION,
+                           "PAM", "",
+                           &pam_dp_interface,
                            &rctx);
     if (ret != EOK) return 3;
 
diff --git a/server/responder/pam/pamsrv.h b/server/responder/pam/pamsrv.h
index 1de1cee8..67261157 100644
--- a/server/responder/pam/pamsrv.h
+++ b/server/responder/pam/pamsrv.h
@@ -22,7 +22,6 @@ struct pam_auth_req {
     void *data;
 };
 
-struct sbus_interface *get_pam_dp_interface(void);
 struct sss_cmd_table *register_sss_cmds(void);
 
 int pam_dp_send_req(struct pam_auth_req *preq, int timeout);
diff --git a/server/responder/pam/pamsrv_dp.c b/server/responder/pam/pamsrv_dp.c
index c0a286b2..3696d3d6 100644
--- a/server/responder/pam/pamsrv_dp.c
+++ b/server/responder/pam/pamsrv_dp.c
@@ -137,52 +137,3 @@ int pam_dp_send_req(struct pam_auth_req *preq, int timeout)
     return EOK;
 }
 
-static int pam_dp_identity(DBusMessage *message, struct sbus_connection *conn)
-{
-    dbus_uint16_t version = DATA_PROVIDER_VERSION;
-    dbus_uint16_t clitype = DP_CLI_FRONTEND;
-    const char *cliname = "PAM";
-    const char *nullname = "";
-    DBusMessage *reply;
-    dbus_bool_t ret;
-
-    DEBUG(4,("Sending ID reply: (%d,%d,%s)\n", clitype, version, cliname));
-
-    reply = dbus_message_new_method_return(message);
-    if (!reply) return ENOMEM;
-
-    ret = dbus_message_append_args(reply,
-                                   DBUS_TYPE_UINT16, &clitype,
-                                   DBUS_TYPE_UINT16, &version,
-                                   DBUS_TYPE_STRING, &cliname,
-                                   DBUS_TYPE_STRING, &nullname,
-                                   DBUS_TYPE_INVALID);
-    if (!ret) {
-        dbus_message_unref(reply);
-        return EIO;
-    }
-
-    /* send reply back */
-    sbus_conn_send_reply(conn, reply);
-    dbus_message_unref(reply);
-
-    return EOK;
-}
-
-static struct sbus_method pam_dp_methods[] = {
-        { DP_CLI_METHOD_IDENTITY, pam_dp_identity },
-        { NULL, NULL }
-};
-
-struct sbus_interface pam_dp_interface = {
-    DATA_PROVIDER_INTERFACE,
-    DATA_PROVIDER_PATH,
-    SBUS_DEFAULT_VTABLE,
-    pam_dp_methods,
-    NULL
-};
-
-struct sbus_interface *get_pam_dp_interface(void)
-{
-    return &pam_dp_interface;
-}