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