low level WINS replication client code
Copyright (C) Andrew Tridgell 2005
+ Copyright (C) Stefan Metzmacher 2005-2010
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
#include "includes.h"
#include "lib/events/events.h"
-#include "lib/util/dlinklist.h"
-#include "lib/socket/socket.h"
+#include "../lib/util/dlinklist.h"
#include "libcli/wrepl/winsrepl.h"
#include "librpc/gen_ndr/ndr_winsrepl.h"
#include "lib/stream/packet.h"
-#include "libcli/composite/composite.h"
#include "system/network.h"
#include "lib/socket/netif.h"
#include "param/param.h"
-#include "libcli/resolve/resolve.h"
-
-static struct wrepl_request *wrepl_request_finished(struct wrepl_request *req, NTSTATUS status);
+#include "lib/util/tevent_ntstatus.h"
+#include "lib/tsocket/tsocket.h"
+#include "libcli/util/tstream.h"
/*
- mark all pending requests as dead - called when a socket error happens
+ main context structure for the wins replication client library
*/
-static void wrepl_socket_dead(struct wrepl_socket *wrepl_socket, NTSTATUS status)
-{
- wrepl_socket->dead = true;
+struct wrepl_socket {
+ struct {
+ struct tevent_context *ctx;
+ } event;
- if (wrepl_socket->packet) {
- packet_recv_disable(wrepl_socket->packet);
- packet_set_fde(wrepl_socket->packet, NULL);
- packet_set_socket(wrepl_socket->packet, NULL);
- }
+ /* the default timeout for requests, 0 means no timeout */
+#define WREPL_SOCKET_REQUEST_TIMEOUT (60)
+ uint32_t request_timeout;
- if (wrepl_socket->event.fde) {
- talloc_free(wrepl_socket->event.fde);
- wrepl_socket->event.fde = NULL;
- }
+ struct tevent_queue *request_queue;
- if (wrepl_socket->sock) {
- talloc_free(wrepl_socket->sock);
- wrepl_socket->sock = NULL;
- }
+ struct tstream_context *stream;
+};
- if (NT_STATUS_EQUAL(NT_STATUS_UNSUCCESSFUL, status)) {
- status = NT_STATUS_UNEXPECTED_NETWORK_ERROR;
- }
- while (wrepl_socket->recv_queue) {
- struct wrepl_request *req = wrepl_socket->recv_queue;
- DLIST_REMOVE(wrepl_socket->recv_queue, req);
- wrepl_request_finished(req, status);
+bool wrepl_socket_is_connected(struct wrepl_socket *wrepl_sock)
+{
+ if (!wrepl_sock) {
+ return false;
}
- talloc_set_destructor(wrepl_socket, NULL);
- if (wrepl_socket->free_skipped) {
- talloc_free(wrepl_socket);
+ if (!wrepl_sock->stream) {
+ return false;
}
-}
-static void wrepl_request_timeout_handler(struct event_context *ev, struct timed_event *te,
- struct timeval t, void *ptr)
-{
- struct wrepl_request *req = talloc_get_type(ptr, struct wrepl_request);
- wrepl_socket_dead(req->wrepl_socket, NT_STATUS_IO_TIMEOUT);
+ return true;
}
/*
- handle recv events
+ initialise a wrepl_socket. The event_ctx is optional, if provided then
+ operations will use that event context
*/
-static NTSTATUS wrepl_finish_recv(void *private, DATA_BLOB packet_blob_in)
+struct wrepl_socket *wrepl_socket_init(TALLOC_CTX *mem_ctx,
+ struct tevent_context *event_ctx)
{
- struct wrepl_socket *wrepl_socket = talloc_get_type(private, struct wrepl_socket);
- struct wrepl_request *req = wrepl_socket->recv_queue;
- DATA_BLOB blob;
- enum ndr_err_code ndr_err;
+ struct wrepl_socket *wrepl_socket;
- if (!req) {
- DEBUG(1,("Received unexpected WINS packet of length %u!\n",
- (unsigned)packet_blob_in.length));
- return NT_STATUS_INVALID_NETWORK_RESPONSE;
+ wrepl_socket = talloc_zero(mem_ctx, struct wrepl_socket);
+ if (!wrepl_socket) {
+ return NULL;
}
- req->packet = talloc(req, struct wrepl_packet);
- NT_STATUS_HAVE_NO_MEMORY(req->packet);
-
- blob.data = packet_blob_in.data + 4;
- blob.length = packet_blob_in.length - 4;
-
- /* we have a full request - parse it */
- ndr_err = ndr_pull_struct_blob(&blob, req->packet, wrepl_socket->iconv_convenience, req->packet,
- (ndr_pull_flags_fn_t)ndr_pull_wrepl_packet);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
- wrepl_request_finished(req, status);
- return NT_STATUS_OK;
+ wrepl_socket->event.ctx = event_ctx;
+ if (!wrepl_socket->event.ctx) {
+ goto failed;
}
- if (DEBUGLVL(10)) {
- DEBUG(10,("Received WINS packet of length %u\n",
- (unsigned)packet_blob_in.length));
- NDR_PRINT_DEBUG(wrepl_packet, req->packet);
+ wrepl_socket->request_queue = tevent_queue_create(wrepl_socket,
+ "wrepl request queue");
+ if (wrepl_socket->request_queue == NULL) {
+ goto failed;
}
- wrepl_request_finished(req, NT_STATUS_OK);
- return NT_STATUS_OK;
-}
+ wrepl_socket->request_timeout = WREPL_SOCKET_REQUEST_TIMEOUT;
-/*
- handler for winrepl events
-*/
-static void wrepl_handler(struct event_context *ev, struct fd_event *fde,
- uint16_t flags, void *private)
-{
- struct wrepl_socket *wrepl_socket = talloc_get_type(private,
- struct wrepl_socket);
- if (flags & EVENT_FD_READ) {
- packet_recv(wrepl_socket->packet);
- return;
- }
- if (flags & EVENT_FD_WRITE) {
- packet_queue_run(wrepl_socket->packet);
- }
-}
+ return wrepl_socket;
-static void wrepl_error(void *private, NTSTATUS status)
-{
- struct wrepl_socket *wrepl_socket = talloc_get_type(private,
- struct wrepl_socket);
- wrepl_socket_dead(wrepl_socket, status);
+failed:
+ talloc_free(wrepl_socket);
+ return NULL;
}
-
/*
- destroy a wrepl_socket destructor
+ initialise a wrepl_socket from an already existing connection
*/
-static int wrepl_socket_destructor(struct wrepl_socket *sock)
+NTSTATUS wrepl_socket_donate_stream(struct wrepl_socket *wrepl_socket,
+ struct tstream_context **stream)
{
- if (sock->dead) {
- sock->free_skipped = true;
- return -1;
+ if (wrepl_socket->stream) {
+ return NT_STATUS_CONNECTION_ACTIVE;
}
- wrepl_socket_dead(sock, NT_STATUS_LOCAL_DISCONNECT);
- return 0;
+
+ wrepl_socket->stream = talloc_move(wrepl_socket, stream);
+ return NT_STATUS_OK;
}
/*
- initialise a wrepl_socket. The event_ctx is optional, if provided then
- operations will use that event context
+ initialise a wrepl_socket from an already existing connection
*/
-struct wrepl_socket *wrepl_socket_init(TALLOC_CTX *mem_ctx,
- struct event_context *event_ctx,
- struct smb_iconv_convenience *iconv_convenience)
+NTSTATUS wrepl_socket_split_stream(struct wrepl_socket *wrepl_socket,
+ TALLOC_CTX *mem_ctx,
+ struct tstream_context **stream)
{
- struct wrepl_socket *wrepl_socket;
- NTSTATUS status;
+ size_t num_requests;
- wrepl_socket = talloc_zero(mem_ctx, struct wrepl_socket);
- if (!wrepl_socket) return NULL;
+ if (!wrepl_socket->stream) {
+ return NT_STATUS_CONNECTION_INVALID;
+ }
- wrepl_socket->event.ctx = talloc_reference(wrepl_socket, event_ctx);
- if (!wrepl_socket->event.ctx) goto failed;
+ num_requests = tevent_queue_length(wrepl_socket->request_queue);
+ if (num_requests > 0) {
+ return NT_STATUS_CONNECTION_IN_USE;
+ }
- wrepl_socket->iconv_convenience = iconv_convenience;
+ *stream = talloc_move(wrepl_socket, &wrepl_socket->stream);
+ return NT_STATUS_OK;
+}
- status = socket_create("ip", SOCKET_TYPE_STREAM, &wrepl_socket->sock, 0);
- if (!NT_STATUS_IS_OK(status)) goto failed;
+const char *wrepl_best_ip(struct loadparm_context *lp_ctx, const char *peer_ip)
+{
+ struct interface *ifaces;
+ load_interfaces(lp_ctx, lp_interfaces(lp_ctx), &ifaces);
+ return iface_best_ip(ifaces, peer_ip);
+}
- talloc_steal(wrepl_socket, wrepl_socket->sock);
+struct wrepl_connect_state {
+ struct {
+ struct wrepl_socket *wrepl_socket;
+ struct tevent_context *ev;
+ } caller;
+ struct tsocket_address *local_address;
+ struct tsocket_address *remote_address;
+ struct tstream_context *stream;
+};
- wrepl_socket->request_timeout = WREPL_SOCKET_REQUEST_TIMEOUT;
+static void wrepl_connect_trigger(struct tevent_req *req,
+ void *private_date);
- talloc_set_destructor(wrepl_socket, wrepl_socket_destructor);
+struct tevent_req *wrepl_connect_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct wrepl_socket *wrepl_socket,
+ const char *our_ip, const char *peer_ip)
+{
+ struct tevent_req *req;
+ struct wrepl_connect_state *state;
+ int ret;
+ bool ok;
- return wrepl_socket;
+ req = tevent_req_create(mem_ctx, &state,
+ struct wrepl_connect_state);
+ if (req == NULL) {
+ return NULL;
+ }
-failed:
- talloc_free(wrepl_socket);
- return NULL;
-}
+ state->caller.wrepl_socket = wrepl_socket;
+ state->caller.ev = ev;
-/*
- initialise a wrepl_socket from an already existing connection
-*/
-struct wrepl_socket *wrepl_socket_merge(TALLOC_CTX *mem_ctx,
- struct event_context *event_ctx,
- struct socket_context *sock,
- struct packet_context *pack)
-{
- struct wrepl_socket *wrepl_socket;
+ if (wrepl_socket->stream) {
+ tevent_req_nterror(req, NT_STATUS_CONNECTION_ACTIVE);
+ return tevent_req_post(req, ev);
+ }
- wrepl_socket = talloc_zero(mem_ctx, struct wrepl_socket);
- if (wrepl_socket == NULL) goto failed;
+ ret = tsocket_address_inet_from_strings(state, "ipv4",
+ our_ip, 0,
+ &state->local_address);
+ if (ret != 0) {
+ NTSTATUS status = map_nt_error_from_unix(errno);
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
- wrepl_socket->event.ctx = talloc_reference(wrepl_socket, event_ctx);
- if (wrepl_socket->event.ctx == NULL) goto failed;
+ ret = tsocket_address_inet_from_strings(state, "ipv4",
+ peer_ip, WINS_REPLICATION_PORT,
+ &state->remote_address);
+ if (ret != 0) {
+ NTSTATUS status = map_nt_error_from_unix(errno);
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
- wrepl_socket->sock = sock;
- talloc_steal(wrepl_socket, wrepl_socket->sock);
+ ok = tevent_queue_add(wrepl_socket->request_queue,
+ ev,
+ req,
+ wrepl_connect_trigger,
+ NULL);
+ if (!ok) {
+ tevent_req_nomem(NULL, req);
+ return tevent_req_post(req, ev);
+ }
+ if (wrepl_socket->request_timeout > 0) {
+ struct timeval endtime;
+ endtime = tevent_timeval_current_ofs(wrepl_socket->request_timeout, 0);
+ ok = tevent_req_set_endtime(req, ev, endtime);
+ if (!ok) {
+ return tevent_req_post(req, ev);
+ }
+ }
- wrepl_socket->request_timeout = WREPL_SOCKET_REQUEST_TIMEOUT;
+ return req;
+}
- wrepl_socket->event.fde = event_add_fd(wrepl_socket->event.ctx, wrepl_socket,
- socket_get_fd(wrepl_socket->sock),
- EVENT_FD_READ,
- wrepl_handler, wrepl_socket);
- if (wrepl_socket->event.fde == NULL) {
- goto failed;
- }
+static void wrepl_connect_done(struct tevent_req *subreq);
- wrepl_socket->packet = pack;
- talloc_steal(wrepl_socket, wrepl_socket->packet);
- packet_set_private(wrepl_socket->packet, wrepl_socket);
- packet_set_socket(wrepl_socket->packet, wrepl_socket->sock);
- packet_set_callback(wrepl_socket->packet, wrepl_finish_recv);
- packet_set_full_request(wrepl_socket->packet, packet_full_request_u32);
- packet_set_error_handler(wrepl_socket->packet, wrepl_error);
- packet_set_event_context(wrepl_socket->packet, wrepl_socket->event.ctx);
- packet_set_fde(wrepl_socket->packet, wrepl_socket->event.fde);
- packet_set_serialise(wrepl_socket->packet);
+static void wrepl_connect_trigger(struct tevent_req *req,
+ void *private_date)
+{
+ struct wrepl_connect_state *state = tevent_req_data(req,
+ struct wrepl_connect_state);
+ struct tevent_req *subreq;
- talloc_set_destructor(wrepl_socket, wrepl_socket_destructor);
-
- return wrepl_socket;
+ subreq = tstream_inet_tcp_connect_send(state,
+ state->caller.ev,
+ state->local_address,
+ state->remote_address);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wrepl_connect_done, req);
-failed:
- talloc_free(wrepl_socket);
- return NULL;
+ return;
}
-/*
- destroy a wrepl_request
-*/
-static int wrepl_request_destructor(struct wrepl_request *req)
+static void wrepl_connect_done(struct tevent_req *subreq)
{
- if (req->state == WREPL_REQUEST_RECV) {
- DLIST_REMOVE(req->wrepl_socket->recv_queue, req);
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct wrepl_connect_state *state = tevent_req_data(req,
+ struct wrepl_connect_state);
+ int ret;
+ int sys_errno;
+
+ ret = tstream_inet_tcp_connect_recv(subreq, &sys_errno,
+ state, &state->stream);
+ if (ret != 0) {
+ NTSTATUS status = map_nt_error_from_unix(sys_errno);
+ tevent_req_nterror(req, status);
+ return;
}
- req->state = WREPL_REQUEST_ERROR;
- return 0;
+
+ tevent_req_done(req);
}
/*
- wait for a request to complete
+ connect a wrepl_socket to a WINS server - recv side
*/
-static NTSTATUS wrepl_request_wait(struct wrepl_request *req)
+NTSTATUS wrepl_connect_recv(struct tevent_req *req)
{
- NT_STATUS_HAVE_NO_MEMORY(req);
- while (req->state < WREPL_REQUEST_DONE) {
- event_loop_once(req->wrepl_socket->event.ctx);
+ struct wrepl_connect_state *state = tevent_req_data(req,
+ struct wrepl_connect_state);
+ struct wrepl_socket *wrepl_socket = state->caller.wrepl_socket;
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
}
- return req->status;
-}
-struct wrepl_connect_state {
- struct composite_context *result;
- struct wrepl_socket *wrepl_socket;
- struct composite_context *creq;
-};
+ wrepl_socket->stream = talloc_move(wrepl_socket, &state->stream);
+
+ tevent_req_received(req);
+ return NT_STATUS_OK;
+}
/*
- handler for winrepl connection completion
+ connect a wrepl_socket to a WINS server - sync API
*/
-static void wrepl_connect_handler(struct composite_context *creq)
+NTSTATUS wrepl_connect(struct wrepl_socket *wrepl_socket,
+ const char *our_ip, const char *peer_ip)
{
- struct wrepl_connect_state *state = talloc_get_type(creq->async.private_data,
- struct wrepl_connect_state);
- struct wrepl_socket *wrepl_socket = state->wrepl_socket;
- struct composite_context *result = state->result;
+ struct tevent_req *subreq;
+ bool ok;
+ NTSTATUS status;
- result->status = socket_connect_recv(state->creq);
- if (!composite_is_ok(result)) return;
+ subreq = wrepl_connect_send(wrepl_socket, wrepl_socket->event.ctx,
+ wrepl_socket, our_ip, peer_ip);
+ NT_STATUS_HAVE_NO_MEMORY(subreq);
- wrepl_socket->event.fde = event_add_fd(wrepl_socket->event.ctx, wrepl_socket,
- socket_get_fd(wrepl_socket->sock),
- EVENT_FD_READ,
- wrepl_handler, wrepl_socket);
- if (composite_nomem(wrepl_socket->event.fde, result)) return;
+ ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
+ if (!ok) {
+ TALLOC_FREE(subreq);
+ return NT_STATUS_INTERNAL_ERROR;
+ }
- /* setup the stream -> packet parser */
- wrepl_socket->packet = packet_init(wrepl_socket);
- if (composite_nomem(wrepl_socket->packet, result)) return;
- packet_set_private(wrepl_socket->packet, wrepl_socket);
- packet_set_socket(wrepl_socket->packet, wrepl_socket->sock);
- packet_set_callback(wrepl_socket->packet, wrepl_finish_recv);
- packet_set_full_request(wrepl_socket->packet, packet_full_request_u32);
- packet_set_error_handler(wrepl_socket->packet, wrepl_error);
- packet_set_event_context(wrepl_socket->packet, wrepl_socket->event.ctx);
- packet_set_fde(wrepl_socket->packet, wrepl_socket->event.fde);
- packet_set_serialise(wrepl_socket->packet);
+ status = wrepl_connect_recv(subreq);
+ TALLOC_FREE(subreq);
+ NT_STATUS_NOT_OK_RETURN(status);
- composite_done(result);
+ return NT_STATUS_OK;
}
-const char *wrepl_best_ip(struct loadparm_context *lp_ctx, const char *peer_ip)
-{
- struct interface *ifaces;
- load_interfaces(lp_ctx, lp_interfaces(lp_ctx), &ifaces);
- return iface_best_ip(ifaces, peer_ip);
-}
+struct wrepl_request_state {
+ struct {
+ struct wrepl_socket *wrepl_socket;
+ struct tevent_context *ev;
+ } caller;
+ struct wrepl_send_ctrl ctrl;
+ struct {
+ struct wrepl_wrap wrap;
+ DATA_BLOB blob;
+ struct iovec iov;
+ } req;
+ bool one_way;
+ struct {
+ DATA_BLOB blob;
+ struct wrepl_packet *packet;
+ } rep;
+};
+static void wrepl_request_trigger(struct tevent_req *req,
+ void *private_data);
-/*
- connect a wrepl_socket to a WINS server
-*/
-struct composite_context *wrepl_connect_send(struct wrepl_socket *wrepl_socket,
- struct resolve_context *resolve_ctx,
- const char *our_ip, const char *peer_ip)
+struct tevent_req *wrepl_request_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct wrepl_socket *wrepl_socket,
+ const struct wrepl_packet *packet,
+ const struct wrepl_send_ctrl *ctrl)
{
- struct composite_context *result;
- struct wrepl_connect_state *state;
- struct socket_address *peer, *us;
+ struct tevent_req *req;
+ struct wrepl_request_state *state;
+ NTSTATUS status;
+ enum ndr_err_code ndr_err;
+ bool ok;
- result = talloc_zero(wrepl_socket, struct composite_context);
- if (!result) return NULL;
+ if (wrepl_socket->event.ctx != ev) {
+ /* TODO: remove wrepl_socket->event.ctx !!! */
+ smb_panic("wrepl_associate_stop_send event context mismatch!");
+ return NULL;
+ }
- result->state = COMPOSITE_STATE_IN_PROGRESS;
- result->event_ctx = wrepl_socket->event.ctx;
+ req = tevent_req_create(mem_ctx, &state,
+ struct wrepl_request_state);
+ if (req == NULL) {
+ return NULL;
+ }
- state = talloc_zero(result, struct wrepl_connect_state);
- if (composite_nomem(state, result)) return result;
- result->private_data = state;
- state->result = result;
- state->wrepl_socket = wrepl_socket;
+ state->caller.wrepl_socket = wrepl_socket;
+ state->caller.ev = ev;
- us = socket_address_from_strings(state, wrepl_socket->sock->backend_name,
- our_ip, 0);
- if (composite_nomem(us, result)) return result;
+ if (ctrl) {
+ state->ctrl = *ctrl;
+ }
- peer = socket_address_from_strings(state, wrepl_socket->sock->backend_name,
- peer_ip, WINS_REPLICATION_PORT);
- if (composite_nomem(peer, result)) return result;
+ if (wrepl_socket->stream == NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_CONNECTION);
+ return tevent_req_post(req, ev);
+ }
- state->creq = socket_connect_send(wrepl_socket->sock, us, peer,
- 0, resolve_ctx,
- wrepl_socket->event.ctx);
- composite_continue(result, state->creq, wrepl_connect_handler, state);
- return result;
-}
+ state->req.wrap.packet = *packet;
+ ndr_err = ndr_push_struct_blob(&state->req.blob, state,
+ &state->req.wrap,
+ (ndr_push_flags_fn_t)ndr_push_wrepl_wrap);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ status = ndr_map_error2ntstatus(ndr_err);
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
-/*
- connect a wrepl_socket to a WINS server - recv side
-*/
-NTSTATUS wrepl_connect_recv(struct composite_context *result)
-{
- struct wrepl_connect_state *state = talloc_get_type(result->private_data,
- struct wrepl_connect_state);
- struct wrepl_socket *wrepl_socket = state->wrepl_socket;
- NTSTATUS status = composite_wait(result);
+ state->req.iov.iov_base = state->req.blob.data;
+ state->req.iov.iov_len = state->req.blob.length;
+
+ ok = tevent_queue_add(wrepl_socket->request_queue,
+ ev,
+ req,
+ wrepl_request_trigger,
+ NULL);
+ if (!ok) {
+ tevent_req_nomem(NULL, req);
+ return tevent_req_post(req, ev);
+ }
- if (!NT_STATUS_IS_OK(status)) {
- wrepl_socket_dead(wrepl_socket, status);
+ if (wrepl_socket->request_timeout > 0) {
+ struct timeval endtime;
+ endtime = tevent_timeval_current_ofs(wrepl_socket->request_timeout, 0);
+ ok = tevent_req_set_endtime(req, ev, endtime);
+ if (!ok) {
+ return tevent_req_post(req, ev);
+ }
}
- talloc_free(result);
- return status;
+ return req;
}
-/*
- connect a wrepl_socket to a WINS server - sync API
-*/
-NTSTATUS wrepl_connect(struct wrepl_socket *wrepl_socket, struct resolve_context *resolve_ctx,
- const char *our_ip, const char *peer_ip)
-{
- struct composite_context *c_req = wrepl_connect_send(wrepl_socket, resolve_ctx, our_ip, peer_ip);
- return wrepl_connect_recv(c_req);
-}
+static void wrepl_request_writev_done(struct tevent_req *subreq);
-/*
- callback from wrepl_request_trigger()
-*/
-static void wrepl_request_trigger_handler(struct event_context *ev, struct timed_event *te,
- struct timeval t, void *ptr)
+static void wrepl_request_trigger(struct tevent_req *req,
+ void *private_data)
{
- struct wrepl_request *req = talloc_get_type(ptr, struct wrepl_request);
- if (req->async.fn) {
- req->async.fn(req);
+ struct wrepl_request_state *state = tevent_req_data(req,
+ struct wrepl_request_state);
+ struct tevent_req *subreq;
+
+ if (state->caller.wrepl_socket->stream == NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_CONNECTION);
+ return;
+ }
+
+ if (DEBUGLVL(10)) {
+ DEBUG(10,("Sending WINS packet of length %u\n",
+ (unsigned)state->req.blob.length));
+ NDR_PRINT_DEBUG(wrepl_packet, &state->req.wrap.packet);
+ }
+
+ subreq = tstream_writev_send(state,
+ state->caller.ev,
+ state->caller.wrepl_socket->stream,
+ &state->req.iov, 1);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
}
+ tevent_req_set_callback(subreq, wrepl_request_writev_done, req);
}
-/*
- trigger an immediate event on a wrepl_request
- the return value should only be used in wrepl_request_send()
- this is the only place where req->trigger is true
-*/
-static struct wrepl_request *wrepl_request_finished(struct wrepl_request *req, NTSTATUS status)
+static void wrepl_request_disconnect_done(struct tevent_req *subreq);
+static void wrepl_request_read_pdu_done(struct tevent_req *subreq);
+
+static void wrepl_request_writev_done(struct tevent_req *subreq)
{
- struct timed_event *te;
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct wrepl_request_state *state = tevent_req_data(req,
+ struct wrepl_request_state);
+ int ret;
+ int sys_errno;
+
+ ret = tstream_writev_recv(subreq, &sys_errno);
+ TALLOC_FREE(subreq);
+ if (ret == -1) {
+ NTSTATUS status = map_nt_error_from_unix(sys_errno);
+ TALLOC_FREE(state->caller.wrepl_socket->stream);
+ tevent_req_nterror(req, status);
+ return;
+ }
- if (req->state == WREPL_REQUEST_RECV) {
- DLIST_REMOVE(req->wrepl_socket->recv_queue, req);
+ if (state->caller.wrepl_socket->stream == NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_CONNECTION);
+ return;
}
- if (!NT_STATUS_IS_OK(status)) {
- req->state = WREPL_REQUEST_ERROR;
- } else {
- req->state = WREPL_REQUEST_DONE;
- }
-
- req->status = status;
-
- if (req->trigger) {
- req->trigger = false;
- /* a zero timeout means immediate */
- te = event_add_timed(req->wrepl_socket->event.ctx,
- req, timeval_zero(),
- wrepl_request_trigger_handler, req);
- if (!te) {
- talloc_free(req);
- return NULL;
+ if (state->ctrl.disconnect_after_send) {
+ subreq = tstream_disconnect_send(state,
+ state->caller.ev,
+ state->caller.wrepl_socket->stream);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
}
- return req;
+ tevent_req_set_callback(subreq, wrepl_request_disconnect_done, req);
+ return;
}
- if (req->async.fn) {
- req->async.fn(req);
+ if (state->ctrl.send_only) {
+ tevent_req_done(req);
+ return;
}
- return NULL;
-}
-struct wrepl_send_ctrl_state {
- struct wrepl_send_ctrl ctrl;
- struct wrepl_request *req;
- struct wrepl_socket *wrepl_sock;
-};
+ subreq = tstream_read_pdu_blob_send(state,
+ state->caller.ev,
+ state->caller.wrepl_socket->stream,
+ 4, /* initial_read_size */
+ packet_full_request_u32,
+ NULL);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wrepl_request_read_pdu_done, req);
+}
-static int wrepl_send_ctrl_destructor(struct wrepl_send_ctrl_state *s)
+static void wrepl_request_disconnect_done(struct tevent_req *subreq)
{
- struct wrepl_request *req = s->wrepl_sock->recv_queue;
-
- /* check if the request is still in WREPL_STATE_RECV,
- * we need this here because the caller has may called
- * talloc_free(req) and wrepl_send_ctrl_state isn't
- * a talloc child of the request, so our s->req pointer
- * is maybe invalid!
- */
- for (; req; req = req->next) {
- if (req == s->req) break;
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct wrepl_request_state *state = tevent_req_data(req,
+ struct wrepl_request_state);
+ int ret;
+ int sys_errno;
+
+ ret = tstream_disconnect_recv(subreq, &sys_errno);
+ TALLOC_FREE(subreq);
+ if (ret == -1) {
+ NTSTATUS status = map_nt_error_from_unix(sys_errno);
+ TALLOC_FREE(state->caller.wrepl_socket->stream);
+ tevent_req_nterror(req, status);
+ return;
}
- if (!req) return 0;
-
- /* here, we need to make sure the async request handler is called
- * later in the next event_loop and now now
- */
- req->trigger = true;
- wrepl_request_finished(req, NT_STATUS_OK);
- if (s->ctrl.disconnect_after_send) {
- wrepl_socket_dead(s->wrepl_sock, NT_STATUS_LOCAL_DISCONNECT);
- }
+ DEBUG(10,("WINS connection disconnected\n"));
+ TALLOC_FREE(state->caller.wrepl_socket->stream);
- return 0;
+ tevent_req_done(req);
}
-/*
- send a generic wins replication request
-*/
-struct wrepl_request *wrepl_request_send(struct wrepl_socket *wrepl_socket,
- struct wrepl_packet *packet,
- struct wrepl_send_ctrl *ctrl)
+static void wrepl_request_read_pdu_done(struct tevent_req *subreq)
{
- struct wrepl_request *req;
- struct wrepl_wrap wrap;
- DATA_BLOB blob;
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct wrepl_request_state *state = tevent_req_data(req,
+ struct wrepl_request_state);
NTSTATUS status;
+ DATA_BLOB blob;
enum ndr_err_code ndr_err;
- req = talloc_zero(wrepl_socket, struct wrepl_request);
- if (!req) return NULL;
- req->wrepl_socket = wrepl_socket;
- req->state = WREPL_REQUEST_RECV;
- req->trigger = true;
-
- DLIST_ADD_END(wrepl_socket->recv_queue, req, struct wrepl_request *);
- talloc_set_destructor(req, wrepl_request_destructor);
+ status = tstream_read_pdu_blob_recv(subreq, state, &state->rep.blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(state->caller.wrepl_socket->stream);
+ tevent_req_nterror(req, status);
+ return;
+ }
- if (wrepl_socket->dead) {
- return wrepl_request_finished(req, NT_STATUS_INVALID_CONNECTION);
+ state->rep.packet = talloc(state, struct wrepl_packet);
+ if (tevent_req_nomem(state->rep.packet, req)) {
+ return;
}
- wrap.packet = *packet;
- ndr_err = ndr_push_struct_blob(&blob, req, wrepl_socket->iconv_convenience, &wrap,
- (ndr_push_flags_fn_t)ndr_push_wrepl_wrap);
+ blob.data = state->rep.blob.data + 4;
+ blob.length = state->rep.blob.length - 4;
+
+ /* we have a full request - parse it */
+ ndr_err = ndr_pull_struct_blob(&blob,
+ state->rep.packet,
+ state->rep.packet,
+ (ndr_pull_flags_fn_t)ndr_pull_wrepl_packet);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
status = ndr_map_error2ntstatus(ndr_err);
- return wrepl_request_finished(req, status);
+ tevent_req_nterror(req, status);
+ return;
}
if (DEBUGLVL(10)) {
- DEBUG(10,("Sending WINS packet of length %u\n",
- (unsigned)blob.length));
- NDR_PRINT_DEBUG(wrepl_packet, &wrap.packet);
+ DEBUG(10,("Received WINS packet of length %u\n",
+ (unsigned)state->rep.blob.length));
+ NDR_PRINT_DEBUG(wrepl_packet, state->rep.packet);
}
- if (wrepl_socket->request_timeout > 0) {
- req->te = event_add_timed(wrepl_socket->event.ctx, req,
- timeval_current_ofs(wrepl_socket->request_timeout, 0),
- wrepl_request_timeout_handler, req);
- if (!req->te) return wrepl_request_finished(req, NT_STATUS_NO_MEMORY);
- }
-
- if (ctrl && (ctrl->send_only || ctrl->disconnect_after_send)) {
- struct wrepl_send_ctrl_state *s = talloc(blob.data, struct wrepl_send_ctrl_state);
- if (!s) return wrepl_request_finished(req, NT_STATUS_NO_MEMORY);
- s->ctrl = *ctrl;
- s->req = req;
- s->wrepl_sock = wrepl_socket;
- talloc_set_destructor(s, wrepl_send_ctrl_destructor);
- }
-
- status = packet_send(wrepl_socket->packet, blob);
- if (!NT_STATUS_IS_OK(status)) {
- return wrepl_request_finished(req, status);
- }
-
- req->trigger = false;
- return req;
+ tevent_req_done(req);
}
-/*
- receive a generic WINS replication reply
-*/
-NTSTATUS wrepl_request_recv(struct wrepl_request *req,
+NTSTATUS wrepl_request_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
struct wrepl_packet **packet)
{
- NTSTATUS status = wrepl_request_wait(req);
- if (NT_STATUS_IS_OK(status) && packet) {
- *packet = talloc_steal(mem_ctx, req->packet);
+ struct wrepl_request_state *state = tevent_req_data(req,
+ struct wrepl_request_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ TALLOC_FREE(state->caller.wrepl_socket->stream);
+ tevent_req_received(req);
+ return status;
}
- talloc_free(req);
- return status;
+
+ if (packet) {
+ *packet = talloc_move(mem_ctx, &state->rep.packet);
+ }
+
+ tevent_req_received(req);
+ return NT_STATUS_OK;
}
/*
*/
NTSTATUS wrepl_request(struct wrepl_socket *wrepl_socket,
TALLOC_CTX *mem_ctx,
- struct wrepl_packet *req_packet,
+ const struct wrepl_packet *req_packet,
struct wrepl_packet **reply_packet)
{
- struct wrepl_request *req = wrepl_request_send(wrepl_socket, req_packet, NULL);
- return wrepl_request_recv(req, mem_ctx, reply_packet);
+ struct tevent_req *subreq;
+ bool ok;
+ NTSTATUS status;
+
+ subreq = wrepl_request_send(mem_ctx, wrepl_socket->event.ctx,
+ wrepl_socket, req_packet, NULL);
+ NT_STATUS_HAVE_NO_MEMORY(subreq);
+
+ ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
+ if (!ok) {
+ TALLOC_FREE(subreq);
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ status = wrepl_request_recv(subreq, mem_ctx, reply_packet);
+ TALLOC_FREE(subreq);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ return NT_STATUS_OK;
}
-/*
- setup an association - send
-*/
-struct wrepl_request *wrepl_associate_send(struct wrepl_socket *wrepl_socket,
- struct wrepl_associate *io)
+struct wrepl_associate_state {
+ struct wrepl_packet packet;
+ uint32_t assoc_ctx;
+ uint16_t major_version;
+};
+
+static void wrepl_associate_done(struct tevent_req *subreq);
+
+struct tevent_req *wrepl_associate_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct wrepl_socket *wrepl_socket,
+ const struct wrepl_associate *io)
{
- struct wrepl_packet *packet;
- struct wrepl_request *req;
+ struct tevent_req *req;
+ struct wrepl_associate_state *state;
+ struct tevent_req *subreq;
- packet = talloc_zero(wrepl_socket, struct wrepl_packet);
- if (packet == NULL) return NULL;
+ if (wrepl_socket->event.ctx != ev) {
+ /* TODO: remove wrepl_socket->event.ctx !!! */
+ smb_panic("wrepl_associate_send event context mismatch!");
+ return NULL;
+ }
- packet->opcode = WREPL_OPCODE_BITS;
- packet->mess_type = WREPL_START_ASSOCIATION;
- packet->message.start.minor_version = 2;
- packet->message.start.major_version = 5;
+ req = tevent_req_create(mem_ctx, &state,
+ struct wrepl_associate_state);
+ if (req == NULL) {
+ return NULL;
+ };
+
+ state->packet.opcode = WREPL_OPCODE_BITS;
+ state->packet.mess_type = WREPL_START_ASSOCIATION;
+ state->packet.message.start.minor_version = 2;
+ state->packet.message.start.major_version = 5;
/*
* nt4 uses 41 bytes for the start_association call
* if we don't do this nt4 uses an old version of the wins replication protocol
* and that would break nt4 <-> samba replication
*/
- packet->padding = data_blob_talloc(packet, NULL, 21);
- if (packet->padding.data == NULL) {
- talloc_free(packet);
- return NULL;
+ state->packet.padding = data_blob_talloc(state, NULL, 21);
+ if (tevent_req_nomem(state->packet.padding.data, req)) {
+ return tevent_req_post(req, ev);
+ }
+ memset(state->packet.padding.data, 0, state->packet.padding.length);
+
+ subreq = wrepl_request_send(state, ev, wrepl_socket, &state->packet, NULL);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, wrepl_associate_done, req);
+
+ return req;
+}
+
+static void wrepl_associate_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct wrepl_associate_state *state = tevent_req_data(req,
+ struct wrepl_associate_state);
+ NTSTATUS status;
+ struct wrepl_packet *packet;
+
+ status = wrepl_request_recv(subreq, state, &packet);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
}
- memset(packet->padding.data, 0, packet->padding.length);
- req = wrepl_request_send(wrepl_socket, packet, NULL);
+ if (packet->mess_type != WREPL_START_ASSOCIATION_REPLY) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
- talloc_free(packet);
+ state->assoc_ctx = packet->message.start_reply.assoc_ctx;
+ state->major_version = packet->message.start_reply.major_version;
- return req;
+ tevent_req_done(req);
}
/*
setup an association - recv
*/
-NTSTATUS wrepl_associate_recv(struct wrepl_request *req,
+NTSTATUS wrepl_associate_recv(struct tevent_req *req,
struct wrepl_associate *io)
{
- struct wrepl_packet *packet=NULL;
+ struct wrepl_associate_state *state = tevent_req_data(req,
+ struct wrepl_associate_state);
NTSTATUS status;
- status = wrepl_request_recv(req, req->wrepl_socket, &packet);
- NT_STATUS_NOT_OK_RETURN(status);
- if (packet->mess_type != WREPL_START_ASSOCIATION_REPLY) {
- status = NT_STATUS_UNEXPECTED_NETWORK_ERROR;
- }
- if (NT_STATUS_IS_OK(status)) {
- io->out.assoc_ctx = packet->message.start_reply.assoc_ctx;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
}
- talloc_free(packet);
- return status;
+
+ io->out.assoc_ctx = state->assoc_ctx;
+ io->out.major_version = state->major_version;
+
+ tevent_req_received(req);
+ return NT_STATUS_OK;
}
/*
NTSTATUS wrepl_associate(struct wrepl_socket *wrepl_socket,
struct wrepl_associate *io)
{
- struct wrepl_request *req = wrepl_associate_send(wrepl_socket, io);
- return wrepl_associate_recv(req, io);
+ struct tevent_req *subreq;
+ bool ok;
+ NTSTATUS status;
+
+ subreq = wrepl_associate_send(wrepl_socket, wrepl_socket->event.ctx,
+ wrepl_socket, io);
+ NT_STATUS_HAVE_NO_MEMORY(subreq);
+
+ ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
+ if (!ok) {
+ TALLOC_FREE(subreq);
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ status = wrepl_associate_recv(subreq, io);
+ TALLOC_FREE(subreq);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ return NT_STATUS_OK;
}
+struct wrepl_associate_stop_state {
+ struct wrepl_packet packet;
+ struct wrepl_send_ctrl ctrl;
+};
-/*
- stop an association - send
-*/
-struct wrepl_request *wrepl_associate_stop_send(struct wrepl_socket *wrepl_socket,
- struct wrepl_associate_stop *io)
+static void wrepl_associate_stop_done(struct tevent_req *subreq);
+
+struct tevent_req *wrepl_associate_stop_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct wrepl_socket *wrepl_socket,
+ const struct wrepl_associate_stop *io)
{
- struct wrepl_packet *packet;
- struct wrepl_request *req;
- struct wrepl_send_ctrl ctrl;
+ struct tevent_req *req;
+ struct wrepl_associate_stop_state *state;
+ struct tevent_req *subreq;
+
+ if (wrepl_socket->event.ctx != ev) {
+ /* TODO: remove wrepl_socket->event.ctx !!! */
+ smb_panic("wrepl_associate_stop_send event context mismatch!");
+ return NULL;
+ }
- packet = talloc_zero(wrepl_socket, struct wrepl_packet);
- if (packet == NULL) return NULL;
+ req = tevent_req_create(mem_ctx, &state,
+ struct wrepl_associate_stop_state);
+ if (req == NULL) {
+ return NULL;
+ };
- packet->opcode = WREPL_OPCODE_BITS;
- packet->assoc_ctx = io->in.assoc_ctx;
- packet->mess_type = WREPL_STOP_ASSOCIATION;
- packet->message.stop.reason = io->in.reason;
+ state->packet.opcode = WREPL_OPCODE_BITS;
+ state->packet.assoc_ctx = io->in.assoc_ctx;
+ state->packet.mess_type = WREPL_STOP_ASSOCIATION;
+ state->packet.message.stop.reason = io->in.reason;
- ZERO_STRUCT(ctrl);
if (io->in.reason == 0) {
- ctrl.send_only = true;
- ctrl.disconnect_after_send = true;
+ state->ctrl.send_only = true;
+ state->ctrl.disconnect_after_send = true;
}
- req = wrepl_request_send(wrepl_socket, packet, &ctrl);
+ subreq = wrepl_request_send(state, ev, wrepl_socket, &state->packet, &state->ctrl);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, wrepl_associate_stop_done, req);
- talloc_free(packet);
+ return req;
+}
- return req;
+static void wrepl_associate_stop_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct wrepl_associate_stop_state *state = tevent_req_data(req,
+ struct wrepl_associate_stop_state);
+ NTSTATUS status;
+
+ /* currently we don't care about a possible response */
+ status = wrepl_request_recv(subreq, state, NULL);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
+ }
+
+ tevent_req_done(req);
}
/*
stop an association - recv
*/
-NTSTATUS wrepl_associate_stop_recv(struct wrepl_request *req,
+NTSTATUS wrepl_associate_stop_recv(struct tevent_req *req,
struct wrepl_associate_stop *io)
{
- struct wrepl_packet *packet=NULL;
NTSTATUS status;
- status = wrepl_request_recv(req, req->wrepl_socket, &packet);
- NT_STATUS_NOT_OK_RETURN(status);
- talloc_free(packet);
- return status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
+ }
+
+ tevent_req_received(req);
+ return NT_STATUS_OK;
}
/*
NTSTATUS wrepl_associate_stop(struct wrepl_socket *wrepl_socket,
struct wrepl_associate_stop *io)
{
- struct wrepl_request *req = wrepl_associate_stop_send(wrepl_socket, io);
- return wrepl_associate_stop_recv(req, io);
+ struct tevent_req *subreq;
+ bool ok;
+ NTSTATUS status;
+
+ subreq = wrepl_associate_stop_send(wrepl_socket, wrepl_socket->event.ctx,
+ wrepl_socket, io);
+ NT_STATUS_HAVE_NO_MEMORY(subreq);
+
+ ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
+ if (!ok) {
+ TALLOC_FREE(subreq);
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ status = wrepl_associate_stop_recv(subreq, io);
+ TALLOC_FREE(subreq);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ return NT_STATUS_OK;
}
-/*
- fetch the partner tables - send
-*/
-struct wrepl_request *wrepl_pull_table_send(struct wrepl_socket *wrepl_socket,
- struct wrepl_pull_table *io)
+struct wrepl_pull_table_state {
+ struct wrepl_packet packet;
+ uint32_t num_partners;
+ struct wrepl_wins_owner *partners;
+};
+
+static void wrepl_pull_table_done(struct tevent_req *subreq);
+
+struct tevent_req *wrepl_pull_table_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct wrepl_socket *wrepl_socket,
+ const struct wrepl_pull_table *io)
{
- struct wrepl_packet *packet;
- struct wrepl_request *req;
+ struct tevent_req *req;
+ struct wrepl_pull_table_state *state;
+ struct tevent_req *subreq;
- packet = talloc_zero(wrepl_socket, struct wrepl_packet);
- if (packet == NULL) return NULL;
+ if (wrepl_socket->event.ctx != ev) {
+ /* TODO: remove wrepl_socket->event.ctx !!! */
+ smb_panic("wrepl_pull_table_send event context mismatch!");
+ return NULL;
+ }
- packet->opcode = WREPL_OPCODE_BITS;
- packet->assoc_ctx = io->in.assoc_ctx;
- packet->mess_type = WREPL_REPLICATION;
- packet->message.replication.command = WREPL_REPL_TABLE_QUERY;
+ req = tevent_req_create(mem_ctx, &state,
+ struct wrepl_pull_table_state);
+ if (req == NULL) {
+ return NULL;
+ };
- req = wrepl_request_send(wrepl_socket, packet, NULL);
+ state->packet.opcode = WREPL_OPCODE_BITS;
+ state->packet.assoc_ctx = io->in.assoc_ctx;
+ state->packet.mess_type = WREPL_REPLICATION;
+ state->packet.message.replication.command = WREPL_REPL_TABLE_QUERY;
- talloc_free(packet);
+ subreq = wrepl_request_send(state, ev, wrepl_socket, &state->packet, NULL);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, wrepl_pull_table_done, req);
- return req;
+ return req;
}
+static void wrepl_pull_table_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct wrepl_pull_table_state *state = tevent_req_data(req,
+ struct wrepl_pull_table_state);
+ NTSTATUS status;
+ struct wrepl_packet *packet;
+ struct wrepl_table *table;
+
+ status = wrepl_request_recv(subreq, state, &packet);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
+ }
+
+ if (packet->mess_type != WREPL_REPLICATION) {
+ tevent_req_nterror(req, NT_STATUS_NETWORK_ACCESS_DENIED);
+ return;
+ }
+
+ if (packet->message.replication.command != WREPL_REPL_TABLE_REPLY) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ table = &packet->message.replication.info.table;
+
+ state->num_partners = table->partner_count;
+ state->partners = talloc_move(state, &table->partners);
+
+ tevent_req_done(req);
+}
/*
fetch the partner tables - recv
*/
-NTSTATUS wrepl_pull_table_recv(struct wrepl_request *req,
+NTSTATUS wrepl_pull_table_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
struct wrepl_pull_table *io)
{
- struct wrepl_packet *packet=NULL;
+ struct wrepl_pull_table_state *state = tevent_req_data(req,
+ struct wrepl_pull_table_state);
NTSTATUS status;
- struct wrepl_table *table;
- int i;
- status = wrepl_request_recv(req, req->wrepl_socket, &packet);
- NT_STATUS_NOT_OK_RETURN(status);
- if (packet->mess_type != WREPL_REPLICATION) {
- status = NT_STATUS_NETWORK_ACCESS_DENIED;
- } else if (packet->message.replication.command != WREPL_REPL_TABLE_REPLY) {
- status = NT_STATUS_UNEXPECTED_NETWORK_ERROR;
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
}
- if (!NT_STATUS_IS_OK(status)) goto failed;
- table = &packet->message.replication.info.table;
- io->out.num_partners = table->partner_count;
- io->out.partners = talloc_steal(mem_ctx, table->partners);
- for (i=0;i<io->out.num_partners;i++) {
- talloc_steal(io->out.partners, io->out.partners[i].address);
- }
+ io->out.num_partners = state->num_partners;
+ io->out.partners = talloc_move(mem_ctx, &state->partners);
-failed:
- talloc_free(packet);
- return status;
+ tevent_req_received(req);
+ return NT_STATUS_OK;
}
-
/*
fetch the partner table - sync api
*/
TALLOC_CTX *mem_ctx,
struct wrepl_pull_table *io)
{
- struct wrepl_request *req = wrepl_pull_table_send(wrepl_socket, io);
- return wrepl_pull_table_recv(req, mem_ctx, io);
+ struct tevent_req *subreq;
+ bool ok;
+ NTSTATUS status;
+
+ subreq = wrepl_pull_table_send(mem_ctx, wrepl_socket->event.ctx,
+ wrepl_socket, io);
+ NT_STATUS_HAVE_NO_MEMORY(subreq);
+
+ ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
+ if (!ok) {
+ TALLOC_FREE(subreq);
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ status = wrepl_pull_table_recv(subreq, mem_ctx, io);
+ TALLOC_FREE(subreq);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ return NT_STATUS_OK;
}
-/*
- fetch the names for a WINS partner - send
-*/
-struct wrepl_request *wrepl_pull_names_send(struct wrepl_socket *wrepl_socket,
- struct wrepl_pull_names *io)
-{
- struct wrepl_packet *packet;
- struct wrepl_request *req;
+struct wrepl_pull_names_state {
+ struct {
+ const struct wrepl_pull_names *io;
+ } caller;
+ struct wrepl_packet packet;
+ uint32_t num_names;
+ struct wrepl_name *names;
+};
- packet = talloc_zero(wrepl_socket, struct wrepl_packet);
- if (packet == NULL) return NULL;
+static void wrepl_pull_names_done(struct tevent_req *subreq);
- packet->opcode = WREPL_OPCODE_BITS;
- packet->assoc_ctx = io->in.assoc_ctx;
- packet->mess_type = WREPL_REPLICATION;
- packet->message.replication.command = WREPL_REPL_SEND_REQUEST;
- packet->message.replication.info.owner = io->in.partner;
+struct tevent_req *wrepl_pull_names_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct wrepl_socket *wrepl_socket,
+ const struct wrepl_pull_names *io)
+{
+ struct tevent_req *req;
+ struct wrepl_pull_names_state *state;
+ struct tevent_req *subreq;
- req = wrepl_request_send(wrepl_socket, packet, NULL);
+ if (wrepl_socket->event.ctx != ev) {
+ /* TODO: remove wrepl_socket->event.ctx !!! */
+ smb_panic("wrepl_pull_names_send event context mismatch!");
+ return NULL;
+ }
- talloc_free(packet);
+ req = tevent_req_create(mem_ctx, &state,
+ struct wrepl_pull_names_state);
+ if (req == NULL) {
+ return NULL;
+ };
+ state->caller.io = io;
+
+ state->packet.opcode = WREPL_OPCODE_BITS;
+ state->packet.assoc_ctx = io->in.assoc_ctx;
+ state->packet.mess_type = WREPL_REPLICATION;
+ state->packet.message.replication.command = WREPL_REPL_SEND_REQUEST;
+ state->packet.message.replication.info.owner = io->in.partner;
+
+ subreq = wrepl_request_send(state, ev, wrepl_socket, &state->packet, NULL);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, wrepl_pull_names_done, req);
- return req;
+ return req;
}
-/*
- fetch the names for a WINS partner - recv
-*/
-NTSTATUS wrepl_pull_names_recv(struct wrepl_request *req,
- TALLOC_CTX *mem_ctx,
- struct wrepl_pull_names *io)
+static void wrepl_pull_names_done(struct tevent_req *subreq)
{
- struct wrepl_packet *packet=NULL;
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct wrepl_pull_names_state *state = tevent_req_data(req,
+ struct wrepl_pull_names_state);
NTSTATUS status;
- int i;
+ struct wrepl_packet *packet;
+ uint32_t i;
- status = wrepl_request_recv(req, req->wrepl_socket, &packet);
- NT_STATUS_NOT_OK_RETURN(status);
- if (packet->mess_type != WREPL_REPLICATION ||
- packet->message.replication.command != WREPL_REPL_SEND_REPLY) {
- status = NT_STATUS_UNEXPECTED_NETWORK_ERROR;
+ status = wrepl_request_recv(subreq, state, &packet);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
}
- if (!NT_STATUS_IS_OK(status)) goto failed;
- io->out.num_names = packet->message.replication.info.reply.num_names;
+ if (packet->mess_type != WREPL_REPLICATION) {
+ tevent_req_nterror(req, NT_STATUS_NETWORK_ACCESS_DENIED);
+ return;
+ }
- io->out.names = talloc_array(packet, struct wrepl_name, io->out.num_names);
- if (io->out.names == NULL) goto nomem;
+ if (packet->message.replication.command != WREPL_REPL_SEND_REPLY) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ state->num_names = packet->message.replication.info.reply.num_names;
+
+ state->names = talloc_array(state, struct wrepl_name, state->num_names);
+ if (tevent_req_nomem(state->names, req)) {
+ return;
+ }
/* convert the list of names and addresses to a sane format */
- for (i=0;i<io->out.num_names;i++) {
+ for (i=0; i < state->num_names; i++) {
struct wrepl_wins_name *wname = &packet->message.replication.info.reply.names[i];
- struct wrepl_name *name = &io->out.names[i];
+ struct wrepl_name *name = &state->names[i];
name->name = *wname->name;
- talloc_steal(io->out.names, wname->name);
+ talloc_steal(state->names, wname->name);
name->type = WREPL_NAME_TYPE(wname->flags);
name->state = WREPL_NAME_STATE(wname->flags);
name->node = WREPL_NAME_NODE(wname->flags);
name->is_static = WREPL_NAME_IS_STATIC(wname->flags);
name->raw_flags = wname->flags;
name->version_id= wname->id;
- name->owner = talloc_strdup(io->out.names, io->in.partner.address);
- if (name->owner == NULL) goto nomem;
+ name->owner = talloc_strdup(state->names,
+ state->caller.io->in.partner.address);
+ if (tevent_req_nomem(name->owner, req)) {
+ return;
+ }
/* trying to save 1 or 2 bytes on the wire isn't a good idea */
if (wname->flags & 2) {
- int j;
+ uint32_t j;
name->num_addresses = wname->addresses.addresses.num_ips;
- name->addresses = talloc_array(io->out.names,
- struct wrepl_address,
+ name->addresses = talloc_array(state->names,
+ struct wrepl_address,
name->num_addresses);
- if (name->addresses == NULL) goto nomem;
+ if (tevent_req_nomem(name->addresses, req)) {
+ return;
+ }
+
for (j=0;j<name->num_addresses;j++) {
- name->addresses[j].owner =
- talloc_steal(name->addresses,
- wname->addresses.addresses.ips[j].owner);
+ name->addresses[j].owner =
+ talloc_move(name->addresses,
+ &wname->addresses.addresses.ips[j].owner);
name->addresses[j].address =
- talloc_steal(name->addresses,
- wname->addresses.addresses.ips[j].ip);
+ talloc_move(name->addresses,
+ &wname->addresses.addresses.ips[j].ip);
}
} else {
name->num_addresses = 1;
- name->addresses = talloc(io->out.names, struct wrepl_address);
- if (name->addresses == NULL) goto nomem;
- name->addresses[0].owner = talloc_strdup(name->addresses,io->in.partner.address);
- if (name->addresses[0].owner == NULL) goto nomem;
- name->addresses[0].address = talloc_steal(name->addresses,
- wname->addresses.ip);
+ name->addresses = talloc_array(state->names,
+ struct wrepl_address,
+ name->num_addresses);
+ if (tevent_req_nomem(name->addresses, req)) {
+ return;
+ }
+
+ name->addresses[0].owner = talloc_strdup(name->addresses, name->owner);
+ if (tevent_req_nomem(name->addresses[0].owner, req)) {
+ return;
+ }
+ name->addresses[0].address = talloc_move(name->addresses,
+ &wname->addresses.ip);
}
}
- talloc_steal(mem_ctx, io->out.names);
- talloc_free(packet);
+ tevent_req_done(req);
+}
+
+/*
+ fetch the names for a WINS partner - recv
+*/
+NTSTATUS wrepl_pull_names_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ struct wrepl_pull_names *io)
+{
+ struct wrepl_pull_names_state *state = tevent_req_data(req,
+ struct wrepl_pull_names_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
+ }
+
+ io->out.num_names = state->num_names;
+ io->out.names = talloc_move(mem_ctx, &state->names);
+
+ tevent_req_received(req);
return NT_STATUS_OK;
-nomem:
- status = NT_STATUS_NO_MEMORY;
-failed:
- talloc_free(packet);
- return status;
}
TALLOC_CTX *mem_ctx,
struct wrepl_pull_names *io)
{
- struct wrepl_request *req = wrepl_pull_names_send(wrepl_socket, io);
- return wrepl_pull_names_recv(req, mem_ctx, io);
+ struct tevent_req *subreq;
+ bool ok;
+ NTSTATUS status;
+
+ subreq = wrepl_pull_names_send(mem_ctx, wrepl_socket->event.ctx,
+ wrepl_socket, io);
+ NT_STATUS_HAVE_NO_MEMORY(subreq);
+
+ ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
+ if (!ok) {
+ TALLOC_FREE(subreq);
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ status = wrepl_pull_names_recv(subreq, mem_ctx, io);
+ TALLOC_FREE(subreq);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ return NT_STATUS_OK;
}
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff