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 "smbd/service_stream.h"
  27 #include "smbd/service_task.h"
  28
  29 struct cmd_lookupname_state {
  30         struct composite_context *ctx;
  31         const char *name;
  32         struct wb_sid_object *result;
  33 };
  34
  35 static void lookupname_recv_domain(struct composite_context *ctx);
  36 static void lookupname_recv_sids(struct composite_context *ctx);
  37
  38 struct composite_context *wb_cmd_lookupname_send(TALLOC_CTX *mem_ctx,
  39                                                  struct wbsrv_service *service,
  40                                                  const char *dom_name,
  41                                                  const char *name)
  42 {
  43         struct composite_context *result, *ctx;
  44         struct cmd_lookupname_state *state;
  45
  46         result = talloc(mem_ctx, struct composite_context);
  47         if (result == NULL) goto failed;
  48         result->state = COMPOSITE_STATE_IN_PROGRESS;
  49         result->async.fn = NULL;
  50         result->event_ctx = service->task->event_ctx;
  51
  52         state = talloc(result, struct cmd_lookupname_state);
  53         if (state == NULL) goto failed;
  54         state->ctx = result;
  55         result->private_data = state;
  56
  57         state->name = talloc_asprintf(state, "%s\\%s", dom_name, name);
  58         if (state->name == NULL) goto failed;
  59
  60         ctx = wb_sid2domain_send(state, service, service->primary_sid);
  61         if (ctx == NULL) goto failed;
  62
  63         ctx->async.fn = lookupname_recv_domain;
  64         ctx->async.private_data = state;
  65         return result;
  66
  67  failed:
  68         talloc_free(result);
  69         return NULL;
  70 }
  71
  72 static void lookupname_recv_domain(struct composite_context *ctx)
  73 {
  74         struct cmd_lookupname_state *state =
  75                 talloc_get_type(ctx->async.private_data,
  76                                 struct cmd_lookupname_state);
  77         struct wbsrv_domain *domain;
  78
  79         state->ctx->status = wb_sid2domain_recv(ctx, &domain);
  80         if (!composite_is_ok(state->ctx)) return;
  81
  82         ctx = wb_lsa_lookupnames_send(state, domain->lsa_pipe,
  83                                       domain->lsa_policy, 1, &state->name);
  84         composite_continue(state->ctx, ctx, lookupname_recv_sids, state);
  85 }
  86
  87 static void lookupname_recv_sids(struct composite_context *ctx)
  88 {
  89         struct cmd_lookupname_state *state =
  90                 talloc_get_type(ctx->async.private_data,
  91                                 struct cmd_lookupname_state);
  92         struct wb_sid_object **sids;
  93
  94         state->ctx->status = wb_lsa_lookupnames_recv(ctx, state, &sids);
  95         if (!composite_is_ok(state->ctx)) return;
  96
  97         state->result = sids[0];
  98         composite_done(state->ctx);
  99 }
 100
 101 NTSTATUS wb_cmd_lookupname_recv(struct composite_context *c,
 102                                 TALLOC_CTX *mem_ctx,
 103                                 struct wb_sid_object **sid)
 104 {
 105         struct cmd_lookupname_state *state =
 106                 talloc_get_type(c->private_data, struct cmd_lookupname_state);
 107         NTSTATUS status = composite_wait(c);
 108         if (NT_STATUS_IS_OK(status)) {
 109                 *sid = talloc_steal(mem_ctx, state->result);
 110         }
 111         talloc_free(state);
 112         return status;
 113 }
 114
 115 NTSTATUS wb_cmd_lookupname(TALLOC_CTX *mem_ctx,
 116                            struct wbsrv_service *service,
 117                            const char *dom_name,
 118                            const char *name,
 119                            struct wb_sid_object **sid)
 120 {
 121         struct composite_context *c =
 122                 wb_cmd_lookupname_send(mem_ctx, service, dom_name, name);
 123         return wb_cmd_lookupname_recv(c, mem_ctx, sid);
 124 }