source4/winbind/wb_cmd_lookupsid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Command backend for wbinfo -s
   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_lookupsid_state {
  29         struct composite_context *ctx;
  30         const struct dom_sid *sid;
  31         struct wb_sid_object *result;
  32 };
  33
  34 static void lookupsid_recv_domain(struct composite_context *ctx);
  35 static void lookupsid_recv_names(struct composite_context *ctx);
  36
  37 struct composite_context *wb_cmd_lookupsid_send(TALLOC_CTX *mem_ctx,
  38                                                 struct wbsrv_service *service,
  39                                                 const struct dom_sid *sid)
  40 {
  41         struct composite_context *result, *ctx;
  42         struct cmd_lookupsid_state *state;
  43
  44         result = talloc(mem_ctx, struct composite_context);
  45         if (result == NULL) goto failed;
  46         result->state = COMPOSITE_STATE_IN_PROGRESS;
  47         result->async.fn = NULL;
  48         result->event_ctx = service->task->event_ctx;
  49
  50         state = talloc(result, struct cmd_lookupsid_state);
  51         if (state == NULL) goto failed;
  52         state->ctx = result;
  53         result->private_data = state;
  54
  55         state->sid = dom_sid_dup(state, sid);
  56         if (state->sid == NULL) goto failed;
  57
  58         ctx = wb_sid2domain_send(state, service, service->primary_sid);
  59         if (ctx == NULL) goto failed;
  60
  61         ctx->async.fn = lookupsid_recv_domain;
  62         ctx->async.private_data = state;
  63         return result;
  64
  65  failed:
  66         talloc_free(result);
  67         return NULL;
  68 }
  69
  70 static void lookupsid_recv_domain(struct composite_context *ctx)
  71 {
  72         struct cmd_lookupsid_state *state =
  73                 talloc_get_type(ctx->async.private_data,
  74                                 struct cmd_lookupsid_state);
  75         struct wbsrv_domain *domain;
  76
  77         state->ctx->status = wb_sid2domain_recv(ctx, &domain);
  78         if (!composite_is_ok(state->ctx)) return;
  79
  80         ctx = wb_lsa_lookupsids_send(state, domain->lsa_pipe,
  81                                      domain->lsa_policy, 1, &state->sid);
  82         composite_continue(state->ctx, ctx, lookupsid_recv_names, state);
  83 }
  84
  85 static void lookupsid_recv_names(struct composite_context *ctx)
  86 {
  87         struct cmd_lookupsid_state *state =
  88                 talloc_get_type(ctx->async.private_data,
  89                                 struct cmd_lookupsid_state);
  90         struct wb_sid_object **names;
  91
  92         state->ctx->status = wb_lsa_lookupsids_recv(ctx, state, &names);
  93         if (!composite_is_ok(state->ctx)) return;
  94
  95         state->result = names[0];
  96         composite_done(state->ctx);
  97 }
  98
  99 NTSTATUS wb_cmd_lookupsid_recv(struct composite_context *c,
 100                                TALLOC_CTX *mem_ctx,
 101                                struct wb_sid_object **sid)
 102 {
 103         struct cmd_lookupsid_state *state =
 104                 talloc_get_type(c->private_data, struct cmd_lookupsid_state);
 105         NTSTATUS status = composite_wait(c);
 106         if (NT_STATUS_IS_OK(status)) {
 107                 *sid = talloc_steal(mem_ctx, state->result);
 108         }
 109         talloc_free(state);
 110         return status;
 111 }
 112
 113 NTSTATUS wb_cmd_lookupsid(TALLOC_CTX *mem_ctx, struct wbsrv_service *service,
 114                           const struct dom_sid *sid,
 115                           struct wb_sid_object **name)
 116 {
 117         struct composite_context *c =
 118                 wb_cmd_lookupsid_send(mem_ctx, service, sid);
 119         return wb_cmd_lookupsid_recv(c, mem_ctx, name);
 120 }