source4/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 3 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, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "libcli/composite/composite.h"
  24 #include "winbind/wb_server.h"
  25 #include "winbind/wb_helper.h"
  26 #include "smbd/service_task.h"
  27
  28 struct cmd_lookupname_state {
  29         struct composite_context *ctx;
  30         const char *name;
  31         struct wb_sid_object *result;
  32 };
  33
  34 static void lookupname_recv_domain(struct composite_context *ctx);
  35 static void lookupname_recv_sids(struct composite_context *ctx);
  36
  37 struct composite_context *wb_cmd_lookupname_send(TALLOC_CTX *mem_ctx,
  38                                                  struct wbsrv_service *service,
  39                                                  const char *dom_name,
  40                                                  const char *name)
  41 {
  42         struct composite_context *result, *ctx;
  43         struct cmd_lookupname_state *state;
  44
  45         result = composite_create(mem_ctx, service->task->event_ctx);
  46         if (result == NULL) goto failed;
  47
  48         state = talloc(result, struct cmd_lookupname_state);
  49         if (state == NULL) goto failed;
  50         state->ctx = result;
  51         result->private_data = state;
  52
  53         state->name = talloc_asprintf(state, "%s\\%s", dom_name, name);
  54         if (state->name == NULL) goto failed;
  55
  56         ctx = wb_sid2domain_send(state, service, service->primary_sid);
  57         if (ctx == NULL) goto failed;
  58
  59         ctx->async.fn = lookupname_recv_domain;
  60         ctx->async.private_data = state;
  61         return result;
  62
  63  failed:
  64         talloc_free(result);
  65         return NULL;
  66 }
  67
  68 static void lookupname_recv_domain(struct composite_context *ctx)
  69 {
  70         struct cmd_lookupname_state *state =
  71                 talloc_get_type(ctx->async.private_data,
  72                                 struct cmd_lookupname_state);
  73         struct wbsrv_domain *domain;
  74
  75         state->ctx->status = wb_sid2domain_recv(ctx, &domain);
  76         if (!composite_is_ok(state->ctx)) return;
  77
  78         ctx = wb_lsa_lookupnames_send(state, domain->libnet_ctx->lsa.pipe,
  79                                       &domain->libnet_ctx->lsa.handle, 1, &state->name);
  80         composite_continue(state->ctx, ctx, lookupname_recv_sids, state);
  81 }
  82
  83 static void lookupname_recv_sids(struct composite_context *ctx)
  84 {
  85         struct cmd_lookupname_state *state =
  86                 talloc_get_type(ctx->async.private_data,
  87                                 struct cmd_lookupname_state);
  88         struct wb_sid_object **sids;
  89
  90         state->ctx->status = wb_lsa_lookupnames_recv(ctx, state, &sids);
  91         if (!composite_is_ok(state->ctx)) return;
  92
  93         state->result = sids[0];
  94         composite_done(state->ctx);
  95 }
  96
  97 NTSTATUS wb_cmd_lookupname_recv(struct composite_context *c,
  98                                 TALLOC_CTX *mem_ctx,
  99                                 struct wb_sid_object **sid)
 100 {
 101         struct cmd_lookupname_state *state =
 102                 talloc_get_type(c->private_data, struct cmd_lookupname_state);
 103         NTSTATUS status = composite_wait(c);
 104         if (NT_STATUS_IS_OK(status)) {
 105                 *sid = talloc_steal(mem_ctx, state->result);
 106         }
 107         talloc_free(state);
 108         return status;
 109 }
 110
 111 NTSTATUS wb_cmd_lookupname(TALLOC_CTX *mem_ctx,
 112                            struct wbsrv_service *service,
 113                            const char *dom_name,
 114                            const char *name,
 115                            struct wb_sid_object **sid)
 116 {
 117         struct composite_context *c =
 118                 wb_cmd_lookupname_send(mem_ctx, service, dom_name, name);
 119         return wb_cmd_lookupname_recv(c, mem_ctx, sid);
 120 }