source/winbind/wb_cmd_lookupname.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Command backend for wbinfo -n
   5
   6    Copyright (C) Volker Lendecke 2005
   7
   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 2 of the License, or
  11    (at your option) any later version.
  12
  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.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/composite/composite.h"
  25 #include "winbind/wb_server.h"
  26 #include "winbind/wb_async_helpers.h"
  27 #include "winbind/wb_helper.h"
  28 #include "smbd/service_task.h"
  29
  30 struct cmd_lookupname_state {
  31         struct composite_context *ctx;
  32         const char *name;
  33         struct wb_sid_object *result;
  34 };
  35
  36 static void lookupname_recv_domain(struct composite_context *ctx);
  37 static void lookupname_recv_sids(struct composite_context *ctx);
  38
  39 struct composite_context *wb_cmd_lookupname_send(TALLOC_CTX *mem_ctx,
  40                                                  struct wbsrv_service *service,
  41                                                  const char *dom_name,
  42                                                  const char *name)
  43 {
  44         struct composite_context *result, *ctx;
  45         struct cmd_lookupname_state *state;
  46
  47         result = talloc(mem_ctx, struct composite_context);
  48         if (result == NULL) goto failed;
  49         result->state = COMPOSITE_STATE_IN_PROGRESS;
  50         result->async.fn = NULL;
  51         result->event_ctx = service->task->event_ctx;
  52
  53         state = talloc(result, struct cmd_lookupname_state);
  54         if (state == NULL) goto failed;
  55         state->ctx = result;
  56         result->private_data = state;
  57
  58         state->name = talloc_asprintf(state, "%s\\%s", dom_name, name);
  59         if (state->name == NULL) goto failed;
  60
  61         ctx = wb_sid2domain_send(state, service, service->primary_sid);
  62         if (ctx == NULL) goto failed;
  63
  64         ctx->async.fn = lookupname_recv_domain;
  65         ctx->async.private_data = state;
  66         return result;
  67
  68  failed:
  69         talloc_free(result);
  70         return NULL;
  71 }
  72
  73 static void lookupname_recv_domain(struct composite_context *ctx)
  74 {
  75         struct cmd_lookupname_state *state =
  76                 talloc_get_type(ctx->async.private_data,
  77                                 struct cmd_lookupname_state);
  78         struct wbsrv_domain *domain;
  79
  80         state->ctx->status = wb_sid2domain_recv(ctx, &domain);
  81         if (!composite_is_ok(state->ctx)) return;
  82
  83         ctx = wb_lsa_lookupnames_send(state, domain->lsa_pipe,
  84                                       domain->lsa_policy, 1, &state->name);
  85         composite_continue(state->ctx, ctx, lookupname_recv_sids, state);
  86 }
  87
  88 static void lookupname_recv_sids(struct composite_context *ctx)
  89 {
  90         struct cmd_lookupname_state *state =
  91                 talloc_get_type(ctx->async.private_data,
  92                                 struct cmd_lookupname_state);
  93         struct wb_sid_object **sids;
  94
  95         state->ctx->status = wb_lsa_lookupnames_recv(ctx, state, &sids);
  96         if (!composite_is_ok(state->ctx)) return;
  97
  98         state->result = sids[0];
  99         composite_done(state->ctx);
 100 }
 101
 102 NTSTATUS wb_cmd_lookupname_recv(struct composite_context *c,
 103                                 TALLOC_CTX *mem_ctx,
 104                                 struct wb_sid_object **sid)
 105 {
 106         struct cmd_lookupname_state *state =
 107                 talloc_get_type(c->private_data, struct cmd_lookupname_state);
 108         NTSTATUS status = composite_wait(c);
 109         if (NT_STATUS_IS_OK(status)) {
 110                 *sid = talloc_steal(mem_ctx, state->result);
 111         }
 112         talloc_free(state);
 113         return status;
 114 }
 115
 116 NTSTATUS wb_cmd_lookupname(TALLOC_CTX *mem_ctx,
 117                            struct wbsrv_service *service,
 118                            const char *dom_name,
 119                            const char *name,
 120                            struct wb_sid_object **sid)
 121 {
 122         struct composite_context *c =
 123                 wb_cmd_lookupname_send(mem_ctx, service, dom_name, name);
 124         return wb_cmd_lookupname_recv(c, mem_ctx, sid);
 125 }