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2f339f71bd
We get back "NO_SUCH_DOMAIN" when we query the PDC. This is fine and therefore we use the "logon_server" variable as "dcname".
134 lines
3.9 KiB
C
134 lines
3.9 KiB
C
/*
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Unix SMB/CIFS implementation.
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Command backend for wbinfo --getdcname
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Copyright (C) Volker Lendecke 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "libcli/composite/composite.h"
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#include "winbind/wb_server.h"
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#include "smbd/service_task.h"
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#include "librpc/gen_ndr/ndr_netlogon_c.h"
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struct cmd_getdcname_state {
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struct composite_context *ctx;
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const char *domain_name;
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struct netr_GetAnyDCName g;
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};
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static void getdcname_recv_domain(struct composite_context *ctx);
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static void getdcname_recv_dcname(struct tevent_req *subreq);
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struct composite_context *wb_cmd_getdcname_send(TALLOC_CTX *mem_ctx,
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struct wbsrv_service *service,
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const char *domain_name)
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{
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struct composite_context *result, *ctx;
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struct cmd_getdcname_state *state;
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result = composite_create(mem_ctx, service->task->event_ctx);
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if (result == NULL) goto failed;
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state = talloc(result, struct cmd_getdcname_state);
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if (state == NULL) goto failed;
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state->ctx = result;
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result->private_data = state;
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state->domain_name = talloc_strdup(state, domain_name);
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if (state->domain_name == NULL) goto failed;
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ctx = wb_sid2domain_send(state, service, service->primary_sid);
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if (ctx == NULL) goto failed;
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ctx->async.fn = getdcname_recv_domain;
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ctx->async.private_data = state;
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return result;
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failed:
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talloc_free(result);
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return NULL;
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}
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static void getdcname_recv_domain(struct composite_context *ctx)
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{
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struct cmd_getdcname_state *state =
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talloc_get_type(ctx->async.private_data,
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struct cmd_getdcname_state);
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struct wbsrv_domain *domain;
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struct tevent_req *subreq;
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state->ctx->status = wb_sid2domain_recv(ctx, &domain);
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if (!composite_is_ok(state->ctx)) return;
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state->g.in.logon_server = talloc_asprintf(
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state, "\\\\%s",
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dcerpc_server_name(domain->netlogon_pipe));
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state->g.in.domainname = state->domain_name;
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state->g.out.dcname = talloc(state, const char *);
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subreq = dcerpc_netr_GetAnyDCName_r_send(state,
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state->ctx->event_ctx,
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domain->netlogon_pipe->binding_handle,
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&state->g);
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if (composite_nomem(subreq, state->ctx)) return;
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tevent_req_set_callback(subreq, getdcname_recv_dcname, state);
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}
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static void getdcname_recv_dcname(struct tevent_req *subreq)
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{
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struct cmd_getdcname_state *state =
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tevent_req_callback_data(subreq,
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struct cmd_getdcname_state);
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state->ctx->status = dcerpc_netr_GetAnyDCName_r_recv(subreq, state);
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TALLOC_FREE(subreq);
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if (!composite_is_ok(state->ctx)) return;
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state->ctx->status = werror_to_ntstatus(state->g.out.result);
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if (!composite_is_ok(state->ctx)) return;
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composite_done(state->ctx);
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}
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NTSTATUS wb_cmd_getdcname_recv(struct composite_context *c,
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TALLOC_CTX *mem_ctx,
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const char **dcname)
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{
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struct cmd_getdcname_state *state =
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talloc_get_type(c->private_data, struct cmd_getdcname_state);
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NTSTATUS status = composite_wait(c);
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if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_DOMAIN)) {
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/* special case: queried DC is PDC */
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state->g.out.dcname = &state->g.in.logon_server;
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status = NT_STATUS_OK;
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}
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if (NT_STATUS_IS_OK(status)) {
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const char *p = *(state->g.out.dcname);
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if (*p == '\\') p += 1;
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if (*p == '\\') p += 1;
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*dcname = talloc_strdup(mem_ctx, p);
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if (*dcname == NULL) {
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status = NT_STATUS_NO_MEMORY;
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}
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}
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talloc_free(state);
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return status;
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}
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