/* Unix SMB/CIFS implementation. Get a struct wb_dom_info for a trusted domain, relying on "our" DC. Copyright (C) Volker Lendecke 2005 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 "includes.h" #include "libcli/composite/composite.h" #include "libcli/resolve/resolve.h" #include "libcli/security/security.h" #include "winbind/wb_server.h" #include "smbd/service_task.h" #include "librpc/gen_ndr/ndr_netlogon_c.h" #include "libcli/libcli.h" struct trusted_dom_info_state { struct composite_context *ctx; struct wbsrv_service *service; struct wbsrv_domain *my_domain; struct netr_DsRGetDCName d; struct netr_GetAnyDCName g; struct wb_dom_info *info; }; static void trusted_dom_info_recv_domain(struct composite_context *ctx); static void trusted_dom_info_recv_dsr(struct tevent_req *subreq); static void trusted_dom_info_recv_dcname(struct tevent_req *subreq); static void trusted_dom_info_recv_dcaddr(struct composite_context *ctx); struct composite_context *wb_trusted_dom_info_send(TALLOC_CTX *mem_ctx, struct wbsrv_service *service, const char *domain_name, const struct dom_sid *sid) { struct composite_context *result, *ctx; struct trusted_dom_info_state *state; result = composite_create(mem_ctx, service->task->event_ctx); if (result == NULL) goto failed; state = talloc(result, struct trusted_dom_info_state); if (state == NULL) goto failed; state->ctx = result; result->private_data = state; state->info = talloc_zero(state, struct wb_dom_info); if (state->info == NULL) goto failed; state->service = service; state->info->sid = dom_sid_dup(state->info, sid); if (state->info->sid == NULL) goto failed; state->info->name = talloc_strdup(state->info, domain_name); if (state->info->name == NULL) goto failed; ctx = wb_sid2domain_send(state, service, service->primary_sid); if (ctx == NULL) goto failed; ctx->async.fn = trusted_dom_info_recv_domain; ctx->async.private_data = state; return result; failed: talloc_free(result); return NULL; } static void trusted_dom_info_recv_domain(struct composite_context *ctx) { struct trusted_dom_info_state *state = talloc_get_type(ctx->async.private_data, struct trusted_dom_info_state); struct tevent_req *subreq; state->ctx->status = wb_sid2domain_recv(ctx, &state->my_domain); if (!composite_is_ok(state->ctx)) return; state->d.in.server_unc = talloc_asprintf(state, "\\\\%s", dcerpc_server_name(state->my_domain->netlogon_pipe)); if (composite_nomem(state->d.in.server_unc, state->ctx)) return; state->d.in.domain_name = state->info->name; state->d.in.domain_guid = NULL; state->d.in.site_guid = NULL; state->d.in.flags = DS_RETURN_DNS_NAME; state->d.out.info = talloc(state, struct netr_DsRGetDCNameInfo *); if (composite_nomem(state->d.out.info, state->ctx)) return; subreq = dcerpc_netr_DsRGetDCName_r_send(state, state->ctx->event_ctx, state->my_domain->netlogon_pipe->binding_handle, &state->d); if (composite_nomem(subreq, state->ctx)) return; tevent_req_set_callback(subreq, trusted_dom_info_recv_dsr, state); } /* * dcerpc_netr_DsRGetDCName has replied */ static void trusted_dom_info_recv_dsr(struct tevent_req *subreq) { struct trusted_dom_info_state *state = tevent_req_callback_data(subreq, struct trusted_dom_info_state); state->ctx->status = dcerpc_netr_DsRGetDCName_r_recv(subreq, state); TALLOC_FREE(subreq); if (!NT_STATUS_IS_OK(state->ctx->status)) { DEBUG(9, ("dcerpc_netr_DsRGetDCName_recv returned %s\n", nt_errstr(state->ctx->status))); goto fallback; } state->ctx->status = werror_to_ntstatus(state->d.out.result); if (!NT_STATUS_IS_OK(state->ctx->status)) { DEBUG(9, ("dsrgetdcname returned %s\n", nt_errstr(state->ctx->status))); goto fallback; } /* Hey, that was easy! */ state->info->num_dcs = 1; state->info->dcs = talloc(state->info, struct nbt_dc_name); state->info->dcs[0].name = talloc_steal(state->info, (*state->d.out.info)->dc_unc); if (*state->info->dcs[0].name == '\\') state->info->dcs[0].name++; if (*state->info->dcs[0].name == '\\') state->info->dcs[0].name++; state->info->dcs[0].address = talloc_steal(state->info, (*state->d.out.info)->dc_address); if (*state->info->dcs[0].address == '\\') state->info->dcs[0].address++; if (*state->info->dcs[0].address == '\\') state->info->dcs[0].address++; state->info->dns_name = talloc_steal(state->info, (*state->d.out.info)->domain_name); composite_done(state->ctx); return; fallback: state->g.in.logon_server = talloc_asprintf( state, "\\\\%s", dcerpc_server_name(state->my_domain->netlogon_pipe)); state->g.in.domainname = state->info->name; state->g.out.dcname = talloc(state, const char *); subreq = dcerpc_netr_GetAnyDCName_r_send(state, state->ctx->event_ctx, state->my_domain->netlogon_pipe->binding_handle, &state->g); if (composite_nomem(subreq, state->ctx)) return; tevent_req_set_callback(subreq, trusted_dom_info_recv_dcname, state); } static void trusted_dom_info_recv_dcname(struct tevent_req *subreq) { struct trusted_dom_info_state *state = tevent_req_callback_data(subreq, struct trusted_dom_info_state); struct composite_context *ctx; struct nbt_name name; state->ctx->status = dcerpc_netr_GetAnyDCName_r_recv(subreq, state); TALLOC_FREE(subreq); if (!composite_is_ok(state->ctx)) return; state->ctx->status = werror_to_ntstatus(state->g.out.result); if (!composite_is_ok(state->ctx)) return; /* Hey, that was easy! */ state->info->num_dcs = 1; state->info->dcs = talloc(state->info, struct nbt_dc_name); state->info->dcs[0].name = talloc_steal(state->info, *(state->g.out.dcname)); if (*state->info->dcs[0].name == '\\') state->info->dcs[0].name++; if (*state->info->dcs[0].name == '\\') state->info->dcs[0].name++; make_nbt_name(&name, state->info->dcs[0].name, 0x20); ctx = resolve_name_send(lpcfg_resolve_context(state->service->task->lp_ctx), state, &name, state->service->task->event_ctx); composite_continue(state->ctx, ctx, trusted_dom_info_recv_dcaddr, state); } static void trusted_dom_info_recv_dcaddr(struct composite_context *ctx) { struct trusted_dom_info_state *state = talloc_get_type(ctx->async.private_data, struct trusted_dom_info_state); state->ctx->status = resolve_name_recv(ctx, state->info, &state->info->dcs[0].address); if (!composite_is_ok(state->ctx)) return; composite_done(state->ctx); } NTSTATUS wb_trusted_dom_info_recv(struct composite_context *ctx, TALLOC_CTX *mem_ctx, struct wb_dom_info **result) { NTSTATUS status = composite_wait(ctx); if (NT_STATUS_IS_OK(status)) { struct trusted_dom_info_state *state = talloc_get_type(ctx->private_data, struct trusted_dom_info_state); *result = talloc_steal(mem_ctx, state->info); } talloc_free(ctx); return status; } NTSTATUS wb_trusted_dom_info(TALLOC_CTX *mem_ctx, struct wbsrv_service *service, const char *domain_name, const struct dom_sid *sid, struct wb_dom_info **result) { struct composite_context *ctx = wb_trusted_dom_info_send(mem_ctx, service, domain_name, sid); return wb_trusted_dom_info_recv(ctx, mem_ctx, result); }