2 Unix SMB/CIFS implementation.
4 low level WINS replication client code
6 Copyright (C) Andrew Tridgell 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "lib/events/events.h"
24 #include "../lib/util/dlinklist.h"
25 #include "lib/socket/socket.h"
26 #include "libcli/wrepl/winsrepl.h"
27 #include "librpc/gen_ndr/ndr_winsrepl.h"
28 #include "lib/stream/packet.h"
29 #include "libcli/composite/composite.h"
30 #include "system/network.h"
31 #include "lib/socket/netif.h"
32 #include "param/param.h"
33 #include "lib/util/tevent_ntstatus.h"
35 static struct wrepl_request *wrepl_request_finished(struct wrepl_request *req, NTSTATUS status);
38 mark all pending requests as dead - called when a socket error happens
40 static void wrepl_socket_dead(struct wrepl_socket *wrepl_socket, NTSTATUS status)
42 wrepl_socket->dead = true;
44 if (wrepl_socket->packet) {
45 packet_recv_disable(wrepl_socket->packet);
46 packet_set_fde(wrepl_socket->packet, NULL);
47 packet_set_socket(wrepl_socket->packet, NULL);
50 if (wrepl_socket->event.fde) {
51 talloc_free(wrepl_socket->event.fde);
52 wrepl_socket->event.fde = NULL;
55 if (wrepl_socket->sock) {
56 talloc_free(wrepl_socket->sock);
57 wrepl_socket->sock = NULL;
60 if (NT_STATUS_EQUAL(NT_STATUS_UNSUCCESSFUL, status)) {
61 status = NT_STATUS_UNEXPECTED_NETWORK_ERROR;
63 while (wrepl_socket->recv_queue) {
64 struct wrepl_request *req = wrepl_socket->recv_queue;
65 DLIST_REMOVE(wrepl_socket->recv_queue, req);
66 wrepl_request_finished(req, status);
69 talloc_set_destructor(wrepl_socket, NULL);
70 if (wrepl_socket->free_skipped) {
71 talloc_free(wrepl_socket);
75 static void wrepl_request_timeout_handler(struct tevent_context *ev, struct tevent_timer *te,
76 struct timeval t, void *ptr)
78 struct wrepl_request *req = talloc_get_type(ptr, struct wrepl_request);
79 wrepl_socket_dead(req->wrepl_socket, NT_STATUS_IO_TIMEOUT);
85 static NTSTATUS wrepl_finish_recv(void *private_data, DATA_BLOB packet_blob_in)
87 struct wrepl_socket *wrepl_socket = talloc_get_type(private_data, struct wrepl_socket);
88 struct wrepl_request *req = wrepl_socket->recv_queue;
90 enum ndr_err_code ndr_err;
93 DEBUG(1,("Received unexpected WINS packet of length %u!\n",
94 (unsigned)packet_blob_in.length));
95 return NT_STATUS_INVALID_NETWORK_RESPONSE;
98 req->packet = talloc(req, struct wrepl_packet);
99 NT_STATUS_HAVE_NO_MEMORY(req->packet);
101 blob.data = packet_blob_in.data + 4;
102 blob.length = packet_blob_in.length - 4;
104 /* we have a full request - parse it */
105 ndr_err = ndr_pull_struct_blob(&blob, req->packet, wrepl_socket->iconv_convenience, req->packet,
106 (ndr_pull_flags_fn_t)ndr_pull_wrepl_packet);
107 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
108 NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
109 wrepl_request_finished(req, status);
114 DEBUG(10,("Received WINS packet of length %u\n",
115 (unsigned)packet_blob_in.length));
116 NDR_PRINT_DEBUG(wrepl_packet, req->packet);
119 wrepl_request_finished(req, NT_STATUS_OK);
124 handler for winrepl events
126 static void wrepl_handler(struct tevent_context *ev, struct tevent_fd *fde,
127 uint16_t flags, void *private_data)
129 struct wrepl_socket *wrepl_socket = talloc_get_type(private_data,
130 struct wrepl_socket);
131 if (flags & EVENT_FD_READ) {
132 packet_recv(wrepl_socket->packet);
135 if (flags & EVENT_FD_WRITE) {
136 packet_queue_run(wrepl_socket->packet);
140 static void wrepl_error(void *private_data, NTSTATUS status)
142 struct wrepl_socket *wrepl_socket = talloc_get_type(private_data,
143 struct wrepl_socket);
144 wrepl_socket_dead(wrepl_socket, status);
149 destroy a wrepl_socket destructor
151 static int wrepl_socket_destructor(struct wrepl_socket *sock)
154 sock->free_skipped = true;
157 wrepl_socket_dead(sock, NT_STATUS_LOCAL_DISCONNECT);
162 initialise a wrepl_socket. The event_ctx is optional, if provided then
163 operations will use that event context
165 struct wrepl_socket *wrepl_socket_init(TALLOC_CTX *mem_ctx,
166 struct tevent_context *event_ctx,
167 struct smb_iconv_convenience *iconv_convenience)
169 struct wrepl_socket *wrepl_socket;
172 wrepl_socket = talloc_zero(mem_ctx, struct wrepl_socket);
173 if (!wrepl_socket) return NULL;
175 wrepl_socket->event.ctx = event_ctx;
176 if (!wrepl_socket->event.ctx) goto failed;
178 wrepl_socket->iconv_convenience = iconv_convenience;
180 status = socket_create("ip", SOCKET_TYPE_STREAM, &wrepl_socket->sock, 0);
181 if (!NT_STATUS_IS_OK(status)) goto failed;
183 talloc_steal(wrepl_socket, wrepl_socket->sock);
185 wrepl_socket->request_timeout = WREPL_SOCKET_REQUEST_TIMEOUT;
187 talloc_set_destructor(wrepl_socket, wrepl_socket_destructor);
192 talloc_free(wrepl_socket);
197 initialise a wrepl_socket from an already existing connection
199 struct wrepl_socket *wrepl_socket_merge(TALLOC_CTX *mem_ctx,
200 struct tevent_context *event_ctx,
201 struct socket_context *sock,
202 struct packet_context *pack)
204 struct wrepl_socket *wrepl_socket;
206 wrepl_socket = talloc_zero(mem_ctx, struct wrepl_socket);
207 if (wrepl_socket == NULL) goto failed;
209 wrepl_socket->event.ctx = event_ctx;
210 if (wrepl_socket->event.ctx == NULL) goto failed;
212 wrepl_socket->sock = sock;
213 talloc_steal(wrepl_socket, wrepl_socket->sock);
216 wrepl_socket->request_timeout = WREPL_SOCKET_REQUEST_TIMEOUT;
218 wrepl_socket->event.fde = event_add_fd(wrepl_socket->event.ctx, wrepl_socket,
219 socket_get_fd(wrepl_socket->sock),
221 wrepl_handler, wrepl_socket);
222 if (wrepl_socket->event.fde == NULL) {
226 wrepl_socket->packet = pack;
227 talloc_steal(wrepl_socket, wrepl_socket->packet);
228 packet_set_private(wrepl_socket->packet, wrepl_socket);
229 packet_set_socket(wrepl_socket->packet, wrepl_socket->sock);
230 packet_set_callback(wrepl_socket->packet, wrepl_finish_recv);
231 packet_set_full_request(wrepl_socket->packet, packet_full_request_u32);
232 packet_set_error_handler(wrepl_socket->packet, wrepl_error);
233 packet_set_event_context(wrepl_socket->packet, wrepl_socket->event.ctx);
234 packet_set_fde(wrepl_socket->packet, wrepl_socket->event.fde);
235 packet_set_serialise(wrepl_socket->packet);
237 talloc_set_destructor(wrepl_socket, wrepl_socket_destructor);
242 talloc_free(wrepl_socket);
247 destroy a wrepl_request
249 static int wrepl_request_destructor(struct wrepl_request *req)
251 if (req->state == WREPL_REQUEST_RECV) {
252 DLIST_REMOVE(req->wrepl_socket->recv_queue, req);
254 req->state = WREPL_REQUEST_ERROR;
259 wait for a request to complete
261 static NTSTATUS wrepl_request_wait(struct wrepl_request *req)
263 NT_STATUS_HAVE_NO_MEMORY(req);
264 while (req->state < WREPL_REQUEST_DONE) {
265 event_loop_once(req->wrepl_socket->event.ctx);
270 const char *wrepl_best_ip(struct loadparm_context *lp_ctx, const char *peer_ip)
272 struct interface *ifaces;
273 load_interfaces(lp_ctx, lp_interfaces(lp_ctx), &ifaces);
274 return iface_best_ip(ifaces, peer_ip);
277 struct wrepl_connect_state {
278 struct wrepl_socket *wrepl_socket;
281 static void wrepl_connect_handler(struct composite_context *creq);
283 struct tevent_req *wrepl_connect_send(TALLOC_CTX *mem_ctx,
284 struct tevent_context *ev,
285 struct wrepl_socket *wrepl_socket,
286 const char *our_ip, const char *peer_ip)
288 struct tevent_req *req;
289 struct wrepl_connect_state *state;
290 struct composite_context *subreq;
291 struct socket_address *peer, *us;
293 req = tevent_req_create(mem_ctx, &state,
294 struct wrepl_connect_state);
299 state->wrepl_socket = wrepl_socket;
301 us = socket_address_from_strings(state, wrepl_socket->sock->backend_name,
303 if (tevent_req_nomem(us, req)) {
304 return tevent_req_post(req, ev);
307 peer = socket_address_from_strings(state, wrepl_socket->sock->backend_name,
308 peer_ip, WINS_REPLICATION_PORT);
309 if (tevent_req_nomem(peer, req)) {
310 return tevent_req_post(req, ev);
313 subreq = socket_connect_send(wrepl_socket->sock, us, peer,
314 0, wrepl_socket->event.ctx);
315 if (tevent_req_nomem(subreq, req)) {
316 return tevent_req_post(req, ev);
319 subreq->async.fn = wrepl_connect_handler;
320 subreq->async.private_data = req;
325 static void wrepl_connect_handler(struct composite_context *subreq)
327 struct tevent_req *req = talloc_get_type_abort(subreq->async.private_data,
329 struct wrepl_connect_state *state = tevent_req_data(req,
330 struct wrepl_connect_state);
331 struct wrepl_socket *wrepl_socket = state->wrepl_socket;
334 status = socket_connect_recv(subreq);
335 if (!NT_STATUS_IS_OK(status)) {
336 tevent_req_nterror(req, status);
340 wrepl_socket->event.fde = event_add_fd(wrepl_socket->event.ctx, wrepl_socket,
341 socket_get_fd(wrepl_socket->sock),
343 wrepl_handler, wrepl_socket);
344 if (tevent_req_nomem(wrepl_socket->event.fde, req)) {
348 /* setup the stream -> packet parser */
349 wrepl_socket->packet = packet_init(wrepl_socket);
350 if (tevent_req_nomem(wrepl_socket->packet, req)) {
353 packet_set_private(wrepl_socket->packet, wrepl_socket);
354 packet_set_socket(wrepl_socket->packet, wrepl_socket->sock);
355 packet_set_callback(wrepl_socket->packet, wrepl_finish_recv);
356 packet_set_full_request(wrepl_socket->packet, packet_full_request_u32);
357 packet_set_error_handler(wrepl_socket->packet, wrepl_error);
358 packet_set_event_context(wrepl_socket->packet, wrepl_socket->event.ctx);
359 packet_set_fde(wrepl_socket->packet, wrepl_socket->event.fde);
360 packet_set_serialise(wrepl_socket->packet);
362 tevent_req_done(req);
366 connect a wrepl_socket to a WINS server - recv side
368 NTSTATUS wrepl_connect_recv(struct tevent_req *req)
370 struct wrepl_connect_state *state = tevent_req_data(req,
371 struct wrepl_connect_state);
372 struct wrepl_socket *wrepl_socket = state->wrepl_socket;
375 if (tevent_req_is_nterror(req, &status)) {
376 wrepl_socket_dead(wrepl_socket, status);
377 tevent_req_received(req);
381 tevent_req_received(req);
386 connect a wrepl_socket to a WINS server - sync API
388 NTSTATUS wrepl_connect(struct wrepl_socket *wrepl_socket,
389 const char *our_ip, const char *peer_ip)
391 struct tevent_req *subreq;
395 subreq = wrepl_connect_send(wrepl_socket, wrepl_socket->event.ctx,
396 wrepl_socket, our_ip, peer_ip);
397 NT_STATUS_HAVE_NO_MEMORY(subreq);
399 ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
402 return NT_STATUS_INTERNAL_ERROR;
405 status = wrepl_connect_recv(subreq);
407 NT_STATUS_NOT_OK_RETURN(status);
413 callback from wrepl_request_trigger()
415 static void wrepl_request_trigger_handler(struct tevent_context *ev, struct tevent_timer *te,
416 struct timeval t, void *ptr)
418 struct wrepl_request *req = talloc_get_type(ptr, struct wrepl_request);
425 trigger an immediate event on a wrepl_request
426 the return value should only be used in wrepl_request_send()
427 this is the only place where req->trigger is true
429 static struct wrepl_request *wrepl_request_finished(struct wrepl_request *req, NTSTATUS status)
431 struct tevent_timer *te;
433 if (req->state == WREPL_REQUEST_RECV) {
434 DLIST_REMOVE(req->wrepl_socket->recv_queue, req);
437 if (!NT_STATUS_IS_OK(status)) {
438 req->state = WREPL_REQUEST_ERROR;
440 req->state = WREPL_REQUEST_DONE;
443 req->status = status;
446 req->trigger = false;
447 /* a zero timeout means immediate */
448 te = event_add_timed(req->wrepl_socket->event.ctx,
450 wrepl_request_trigger_handler, req);
464 struct wrepl_send_ctrl_state {
465 struct wrepl_send_ctrl ctrl;
466 struct wrepl_request *req;
467 struct wrepl_socket *wrepl_sock;
470 static int wrepl_send_ctrl_destructor(struct wrepl_send_ctrl_state *s)
472 struct wrepl_request *req = s->wrepl_sock->recv_queue;
474 /* check if the request is still in WREPL_STATE_RECV,
475 * we need this here because the caller has may called
476 * talloc_free(req) and wrepl_send_ctrl_state isn't
477 * a talloc child of the request, so our s->req pointer
480 for (; req; req = req->next) {
481 if (req == s->req) break;
485 /* here, we need to make sure the async request handler is called
486 * later in the next event_loop and now now
489 wrepl_request_finished(req, NT_STATUS_OK);
491 if (s->ctrl.disconnect_after_send) {
492 wrepl_socket_dead(s->wrepl_sock, NT_STATUS_LOCAL_DISCONNECT);
499 send a generic wins replication request
501 struct wrepl_request *wrepl_request_send(struct wrepl_socket *wrepl_socket,
502 struct wrepl_packet *packet,
503 struct wrepl_send_ctrl *ctrl)
505 struct wrepl_request *req;
506 struct wrepl_wrap wrap;
509 enum ndr_err_code ndr_err;
511 req = talloc_zero(wrepl_socket, struct wrepl_request);
512 if (!req) return NULL;
513 req->wrepl_socket = wrepl_socket;
514 req->state = WREPL_REQUEST_RECV;
517 DLIST_ADD_END(wrepl_socket->recv_queue, req, struct wrepl_request *);
518 talloc_set_destructor(req, wrepl_request_destructor);
520 if (wrepl_socket->dead) {
521 return wrepl_request_finished(req, NT_STATUS_INVALID_CONNECTION);
524 wrap.packet = *packet;
525 ndr_err = ndr_push_struct_blob(&blob, req, wrepl_socket->iconv_convenience, &wrap,
526 (ndr_push_flags_fn_t)ndr_push_wrepl_wrap);
527 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
528 status = ndr_map_error2ntstatus(ndr_err);
529 return wrepl_request_finished(req, status);
533 DEBUG(10,("Sending WINS packet of length %u\n",
534 (unsigned)blob.length));
535 NDR_PRINT_DEBUG(wrepl_packet, &wrap.packet);
538 if (wrepl_socket->request_timeout > 0) {
539 req->te = event_add_timed(wrepl_socket->event.ctx, req,
540 timeval_current_ofs(wrepl_socket->request_timeout, 0),
541 wrepl_request_timeout_handler, req);
542 if (!req->te) return wrepl_request_finished(req, NT_STATUS_NO_MEMORY);
545 if (ctrl && (ctrl->send_only || ctrl->disconnect_after_send)) {
546 struct wrepl_send_ctrl_state *s = talloc(blob.data, struct wrepl_send_ctrl_state);
547 if (!s) return wrepl_request_finished(req, NT_STATUS_NO_MEMORY);
550 s->wrepl_sock = wrepl_socket;
551 talloc_set_destructor(s, wrepl_send_ctrl_destructor);
554 status = packet_send(wrepl_socket->packet, blob);
555 if (!NT_STATUS_IS_OK(status)) {
556 return wrepl_request_finished(req, status);
559 req->trigger = false;
564 receive a generic WINS replication reply
566 NTSTATUS wrepl_request_recv(struct wrepl_request *req,
568 struct wrepl_packet **packet)
570 NTSTATUS status = wrepl_request_wait(req);
571 if (NT_STATUS_IS_OK(status) && packet) {
572 *packet = talloc_steal(mem_ctx, req->packet);
579 a full WINS replication request/response
581 NTSTATUS wrepl_request(struct wrepl_socket *wrepl_socket,
583 struct wrepl_packet *req_packet,
584 struct wrepl_packet **reply_packet)
586 struct wrepl_request *req = wrepl_request_send(wrepl_socket, req_packet, NULL);
587 return wrepl_request_recv(req, mem_ctx, reply_packet);
591 struct wrepl_associate_state {
592 struct wrepl_packet packet;
594 uint16_t major_version;
597 static void wrepl_associate_done(struct wrepl_request *subreq);
599 struct tevent_req *wrepl_associate_send(TALLOC_CTX *mem_ctx,
600 struct tevent_context *ev,
601 struct wrepl_socket *wrepl_socket,
602 const struct wrepl_associate *io)
604 struct tevent_req *req;
605 struct wrepl_associate_state *state;
606 struct wrepl_request *subreq;
608 if (wrepl_socket->event.ctx != ev) {
609 /* TODO: remove wrepl_socket->event.ctx !!! */
610 smb_panic("wrepl_associate_send event context mismatch!");
614 req = tevent_req_create(mem_ctx, &state,
615 struct wrepl_associate_state);
620 state->packet.opcode = WREPL_OPCODE_BITS;
621 state->packet.mess_type = WREPL_START_ASSOCIATION;
622 state->packet.message.start.minor_version = 2;
623 state->packet.message.start.major_version = 5;
626 * nt4 uses 41 bytes for the start_association call
627 * so do it the same and as we don't know th emeanings of this bytes
628 * we just send zeros and nt4, w2k and w2k3 seems to be happy with this
630 * if we don't do this nt4 uses an old version of the wins replication protocol
631 * and that would break nt4 <-> samba replication
633 state->packet.padding = data_blob_talloc(state, NULL, 21);
634 if (tevent_req_nomem(state->packet.padding.data, req)) {
635 return tevent_req_post(req, ev);
637 memset(state->packet.padding.data, 0, state->packet.padding.length);
639 subreq = wrepl_request_send(wrepl_socket, &state->packet, NULL);
640 if (tevent_req_nomem(subreq, req)) {
641 return tevent_req_post(req, ev);
643 subreq->async.fn = wrepl_associate_done;
644 subreq->async.private_data = req;
649 static void wrepl_associate_done(struct wrepl_request *subreq)
651 struct tevent_req *req = talloc_get_type_abort(subreq->async.private_data,
653 struct wrepl_associate_state *state = tevent_req_data(req,
654 struct wrepl_associate_state);
656 struct wrepl_packet *packet;
658 status = wrepl_request_recv(subreq, state, &packet);
659 if (!NT_STATUS_IS_OK(status)) {
660 tevent_req_nterror(req, status);
664 if (packet->mess_type != WREPL_START_ASSOCIATION_REPLY) {
665 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
669 state->assoc_ctx = packet->message.start_reply.assoc_ctx;
670 state->major_version = packet->message.start_reply.major_version;
672 tevent_req_done(req);
676 setup an association - recv
678 NTSTATUS wrepl_associate_recv(struct tevent_req *req,
679 struct wrepl_associate *io)
681 struct wrepl_associate_state *state = tevent_req_data(req,
682 struct wrepl_associate_state);
685 if (tevent_req_is_nterror(req, &status)) {
686 tevent_req_received(req);
690 io->out.assoc_ctx = state->assoc_ctx;
691 io->out.major_version = state->major_version;
693 tevent_req_received(req);
698 setup an association - sync api
700 NTSTATUS wrepl_associate(struct wrepl_socket *wrepl_socket,
701 struct wrepl_associate *io)
703 struct tevent_req *subreq;
707 subreq = wrepl_associate_send(wrepl_socket, wrepl_socket->event.ctx,
709 NT_STATUS_HAVE_NO_MEMORY(subreq);
711 ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
714 return NT_STATUS_INTERNAL_ERROR;
717 status = wrepl_associate_recv(subreq, io);
719 NT_STATUS_NOT_OK_RETURN(status);
724 struct wrepl_associate_stop_state {
725 struct wrepl_packet packet;
726 struct wrepl_send_ctrl ctrl;
729 static void wrepl_associate_stop_done(struct wrepl_request *subreq);
731 struct tevent_req *wrepl_associate_stop_send(TALLOC_CTX *mem_ctx,
732 struct tevent_context *ev,
733 struct wrepl_socket *wrepl_socket,
734 const struct wrepl_associate_stop *io)
736 struct tevent_req *req;
737 struct wrepl_associate_stop_state *state;
738 struct wrepl_request *subreq;
740 if (wrepl_socket->event.ctx != ev) {
741 /* TODO: remove wrepl_socket->event.ctx !!! */
742 smb_panic("wrepl_associate_stop_send event context mismatch!");
746 req = tevent_req_create(mem_ctx, &state,
747 struct wrepl_associate_stop_state);
752 state->packet.opcode = WREPL_OPCODE_BITS;
753 state->packet.assoc_ctx = io->in.assoc_ctx;
754 state->packet.mess_type = WREPL_STOP_ASSOCIATION;
755 state->packet.message.stop.reason = io->in.reason;
757 if (io->in.reason == 0) {
758 state->ctrl.send_only = true;
759 state->ctrl.disconnect_after_send = true;
762 subreq = wrepl_request_send(wrepl_socket, &state->packet, &state->ctrl);
763 if (tevent_req_nomem(subreq, req)) {
764 return tevent_req_post(req, ev);
766 subreq->async.fn = wrepl_associate_stop_done;
767 subreq->async.private_data = req;
772 static void wrepl_associate_stop_done(struct wrepl_request *subreq)
774 struct tevent_req *req = talloc_get_type_abort(subreq->async.private_data,
776 struct wrepl_associate_stop_state *state = tevent_req_data(req,
777 struct wrepl_associate_stop_state);
780 /* currently we don't care about a possible response */
781 status = wrepl_request_recv(subreq, state, NULL);
782 if (!NT_STATUS_IS_OK(status)) {
783 tevent_req_nterror(req, status);
787 tevent_req_done(req);
791 stop an association - recv
793 NTSTATUS wrepl_associate_stop_recv(struct tevent_req *req,
794 struct wrepl_associate_stop *io)
798 if (tevent_req_is_nterror(req, &status)) {
799 tevent_req_received(req);
803 tevent_req_received(req);
808 setup an association - sync api
810 NTSTATUS wrepl_associate_stop(struct wrepl_socket *wrepl_socket,
811 struct wrepl_associate_stop *io)
813 struct tevent_req *subreq;
817 subreq = wrepl_associate_stop_send(wrepl_socket, wrepl_socket->event.ctx,
819 NT_STATUS_HAVE_NO_MEMORY(subreq);
821 ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
824 return NT_STATUS_INTERNAL_ERROR;
827 status = wrepl_associate_stop_recv(subreq, io);
829 NT_STATUS_NOT_OK_RETURN(status);
834 struct wrepl_pull_table_state {
835 struct wrepl_packet packet;
836 uint32_t num_partners;
837 struct wrepl_wins_owner *partners;
840 static void wrepl_pull_table_done(struct wrepl_request *subreq);
842 struct tevent_req *wrepl_pull_table_send(TALLOC_CTX *mem_ctx,
843 struct tevent_context *ev,
844 struct wrepl_socket *wrepl_socket,
845 const struct wrepl_pull_table *io)
847 struct tevent_req *req;
848 struct wrepl_pull_table_state *state;
849 struct wrepl_request *subreq;
851 if (wrepl_socket->event.ctx != ev) {
852 /* TODO: remove wrepl_socket->event.ctx !!! */
853 smb_panic("wrepl_pull_table_send event context mismatch!");
857 req = tevent_req_create(mem_ctx, &state,
858 struct wrepl_pull_table_state);
863 state->packet.opcode = WREPL_OPCODE_BITS;
864 state->packet.assoc_ctx = io->in.assoc_ctx;
865 state->packet.mess_type = WREPL_REPLICATION;
866 state->packet.message.replication.command = WREPL_REPL_TABLE_QUERY;
868 subreq = wrepl_request_send(wrepl_socket, &state->packet, NULL);
869 if (tevent_req_nomem(subreq, req)) {
870 return tevent_req_post(req, ev);
872 subreq->async.fn = wrepl_pull_table_done;
873 subreq->async.private_data = req;
878 static void wrepl_pull_table_done(struct wrepl_request *subreq)
880 struct tevent_req *req = talloc_get_type_abort(subreq->async.private_data,
882 struct wrepl_pull_table_state *state = tevent_req_data(req,
883 struct wrepl_pull_table_state);
885 struct wrepl_packet *packet;
886 struct wrepl_table *table;
888 status = wrepl_request_recv(subreq, state, &packet);
889 if (!NT_STATUS_IS_OK(status)) {
890 tevent_req_nterror(req, status);
894 if (packet->mess_type != WREPL_REPLICATION) {
895 tevent_req_nterror(req, NT_STATUS_NETWORK_ACCESS_DENIED);
899 if (packet->message.replication.command != WREPL_REPL_TABLE_REPLY) {
900 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
904 table = &packet->message.replication.info.table;
906 state->num_partners = table->partner_count;
907 state->partners = talloc_move(state, &table->partners);
909 tevent_req_done(req);
913 fetch the partner tables - recv
915 NTSTATUS wrepl_pull_table_recv(struct tevent_req *req,
917 struct wrepl_pull_table *io)
919 struct wrepl_pull_table_state *state = tevent_req_data(req,
920 struct wrepl_pull_table_state);
923 if (tevent_req_is_nterror(req, &status)) {
924 tevent_req_received(req);
928 io->out.num_partners = state->num_partners;
929 io->out.partners = talloc_move(mem_ctx, &state->partners);
931 tevent_req_received(req);
936 fetch the partner table - sync api
938 NTSTATUS wrepl_pull_table(struct wrepl_socket *wrepl_socket,
940 struct wrepl_pull_table *io)
942 struct tevent_req *subreq;
946 subreq = wrepl_pull_table_send(mem_ctx, wrepl_socket->event.ctx,
948 NT_STATUS_HAVE_NO_MEMORY(subreq);
950 ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
953 return NT_STATUS_INTERNAL_ERROR;
956 status = wrepl_pull_table_recv(subreq, mem_ctx, io);
958 NT_STATUS_NOT_OK_RETURN(status);
964 struct wrepl_pull_names_state {
966 const struct wrepl_pull_names *io;
968 struct wrepl_packet packet;
970 struct wrepl_name *names;
973 static void wrepl_pull_names_done(struct wrepl_request *subreq);
975 struct tevent_req *wrepl_pull_names_send(TALLOC_CTX *mem_ctx,
976 struct tevent_context *ev,
977 struct wrepl_socket *wrepl_socket,
978 const struct wrepl_pull_names *io)
980 struct tevent_req *req;
981 struct wrepl_pull_names_state *state;
982 struct wrepl_request *subreq;
984 if (wrepl_socket->event.ctx != ev) {
985 /* TODO: remove wrepl_socket->event.ctx !!! */
986 smb_panic("wrepl_pull_names_send event context mismatch!");
990 req = tevent_req_create(mem_ctx, &state,
991 struct wrepl_pull_names_state);
995 state->caller.io = io;
997 state->packet.opcode = WREPL_OPCODE_BITS;
998 state->packet.assoc_ctx = io->in.assoc_ctx;
999 state->packet.mess_type = WREPL_REPLICATION;
1000 state->packet.message.replication.command = WREPL_REPL_SEND_REQUEST;
1001 state->packet.message.replication.info.owner = io->in.partner;
1003 subreq = wrepl_request_send(wrepl_socket, &state->packet, NULL);
1004 if (tevent_req_nomem(subreq, req)) {
1005 return tevent_req_post(req, ev);
1007 subreq->async.fn = wrepl_pull_names_done;
1008 subreq->async.private_data = req;
1013 static void wrepl_pull_names_done(struct wrepl_request *subreq)
1015 struct tevent_req *req = talloc_get_type_abort(subreq->async.private_data,
1017 struct wrepl_pull_names_state *state = tevent_req_data(req,
1018 struct wrepl_pull_names_state);
1020 struct wrepl_packet *packet;
1023 status = wrepl_request_recv(subreq, state, &packet);
1024 if (!NT_STATUS_IS_OK(status)) {
1025 tevent_req_nterror(req, status);
1029 if (packet->mess_type != WREPL_REPLICATION) {
1030 tevent_req_nterror(req, NT_STATUS_NETWORK_ACCESS_DENIED);
1034 if (packet->message.replication.command != WREPL_REPL_SEND_REPLY) {
1035 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
1039 state->num_names = packet->message.replication.info.reply.num_names;
1041 state->names = talloc_array(state, struct wrepl_name, state->num_names);
1042 if (tevent_req_nomem(state->names, req)) {
1046 /* convert the list of names and addresses to a sane format */
1047 for (i=0; i < state->num_names; i++) {
1048 struct wrepl_wins_name *wname = &packet->message.replication.info.reply.names[i];
1049 struct wrepl_name *name = &state->names[i];
1051 name->name = *wname->name;
1052 talloc_steal(state->names, wname->name);
1053 name->type = WREPL_NAME_TYPE(wname->flags);
1054 name->state = WREPL_NAME_STATE(wname->flags);
1055 name->node = WREPL_NAME_NODE(wname->flags);
1056 name->is_static = WREPL_NAME_IS_STATIC(wname->flags);
1057 name->raw_flags = wname->flags;
1058 name->version_id= wname->id;
1059 name->owner = talloc_strdup(state->names,
1060 state->caller.io->in.partner.address);
1061 if (tevent_req_nomem(name->owner, req)) {
1065 /* trying to save 1 or 2 bytes on the wire isn't a good idea */
1066 if (wname->flags & 2) {
1069 name->num_addresses = wname->addresses.addresses.num_ips;
1070 name->addresses = talloc_array(state->names,
1071 struct wrepl_address,
1072 name->num_addresses);
1073 if (tevent_req_nomem(name->addresses, req)) {
1077 for (j=0;j<name->num_addresses;j++) {
1078 name->addresses[j].owner =
1079 talloc_move(name->addresses,
1080 &wname->addresses.addresses.ips[j].owner);
1081 name->addresses[j].address =
1082 talloc_move(name->addresses,
1083 &wname->addresses.addresses.ips[j].ip);
1086 name->num_addresses = 1;
1087 name->addresses = talloc_array(state->names,
1088 struct wrepl_address,
1089 name->num_addresses);
1090 if (tevent_req_nomem(name->addresses, req)) {
1094 name->addresses[0].owner = talloc_strdup(name->addresses, name->owner);
1095 if (tevent_req_nomem(name->addresses[0].owner, req)) {
1098 name->addresses[0].address = talloc_move(name->addresses,
1099 &wname->addresses.ip);
1103 tevent_req_done(req);
1107 fetch the names for a WINS partner - recv
1109 NTSTATUS wrepl_pull_names_recv(struct tevent_req *req,
1110 TALLOC_CTX *mem_ctx,
1111 struct wrepl_pull_names *io)
1113 struct wrepl_pull_names_state *state = tevent_req_data(req,
1114 struct wrepl_pull_names_state);
1117 if (tevent_req_is_nterror(req, &status)) {
1118 tevent_req_received(req);
1122 io->out.num_names = state->num_names;
1123 io->out.names = talloc_move(mem_ctx, &state->names);
1125 tevent_req_received(req);
1126 return NT_STATUS_OK;
1132 fetch the names for a WINS partner - sync api
1134 NTSTATUS wrepl_pull_names(struct wrepl_socket *wrepl_socket,
1135 TALLOC_CTX *mem_ctx,
1136 struct wrepl_pull_names *io)
1138 struct tevent_req *subreq;
1142 subreq = wrepl_pull_names_send(mem_ctx, wrepl_socket->event.ctx,
1144 NT_STATUS_HAVE_NO_MEMORY(subreq);
1146 ok = tevent_req_poll(subreq, wrepl_socket->event.ctx);
1148 TALLOC_FREE(subreq);
1149 return NT_STATUS_INTERNAL_ERROR;
1152 status = wrepl_pull_names_recv(subreq, mem_ctx, io);
1153 TALLOC_FREE(subreq);
1154 NT_STATUS_NOT_OK_RETURN(status);
1156 return NT_STATUS_OK;