source4/winbind/wb_cmd_list_trustdom.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Command backend for wbinfo -m
   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 #include "librpc/gen_ndr/ndr_lsa.h"
  28 #include "librpc/gen_ndr/ndr_lsa_c.h"
  29
  30 /* List trusted domains. To avoid the trouble with having to wait for other
  31  * conflicting requests waiting for the lsa pipe we're opening our own lsa
  32  * pipe here. */
  33
  34 struct cmd_list_trustdom_state {
  35         struct composite_context *ctx;
  36         struct dcerpc_pipe *lsa_pipe;
  37         struct policy_handle *lsa_policy;
  38         int num_domains;
  39         struct wb_dom_info **domains;
  40
  41         uint32_t resume_handle;
  42         struct lsa_DomainList domainlist;
  43         struct lsa_EnumTrustDom r;
  44 };
  45
  46 static void cmd_list_trustdoms_recv_domain(struct composite_context *ctx);
  47 static void cmd_list_trustdoms_recv_lsa(struct composite_context *ctx);
  48 static void cmd_list_trustdoms_recv_doms(struct rpc_request *req);
  49
  50 struct composite_context *wb_cmd_list_trustdoms_send(TALLOC_CTX *mem_ctx,
  51                                                      struct wbsrv_service *service)
  52 {
  53         struct composite_context *result, *ctx;
  54         struct cmd_list_trustdom_state *state;
  55
  56         result = talloc_zero(mem_ctx, struct composite_context);
  57         if (result == NULL) goto failed;
  58         result->state = COMPOSITE_STATE_IN_PROGRESS;
  59         result->async.fn = NULL;
  60         result->event_ctx = service->task->event_ctx;
  61
  62         state = talloc(result, struct cmd_list_trustdom_state);
  63         if (state == NULL) goto failed;
  64         state->ctx = result;
  65         result->private_data = state;
  66
  67         ctx = wb_sid2domain_send(state, service, service->primary_sid);
  68         if (ctx == NULL) goto failed;
  69         ctx->async.fn = cmd_list_trustdoms_recv_domain;
  70         ctx->async.private_data = state;
  71         return result;
  72
  73  failed:
  74         talloc_free(result);
  75         return NULL;
  76 }
  77
  78 static void cmd_list_trustdoms_recv_domain(struct composite_context *ctx)
  79 {
  80         struct cmd_list_trustdom_state *state =
  81                 talloc_get_type(ctx->async.private_data,
  82                                 struct cmd_list_trustdom_state);
  83         struct wbsrv_domain *domain;
  84         struct smbcli_tree *tree;
  85
  86         state->ctx->status = wb_sid2domain_recv(ctx, &domain);
  87         if (!composite_is_ok(state->ctx)) return;
  88
  89         tree = dcerpc_smb_tree(domain->lsa_pipe->conn);
  90         if (composite_nomem(tree, state->ctx)) return;
  91
  92         ctx = wb_init_lsa_send(state, tree, domain->lsa_auth_type,
  93                                domain->schannel_creds);
  94         composite_continue(state->ctx, ctx, cmd_list_trustdoms_recv_lsa,
  95                            state);
  96 }
  97
  98 static void cmd_list_trustdoms_recv_lsa(struct composite_context *ctx)
  99 {
 100         struct cmd_list_trustdom_state *state =
 101                 talloc_get_type(ctx->async.private_data,
 102                                 struct cmd_list_trustdom_state);
 103         struct rpc_request *req;
 104
 105         state->ctx->status = wb_init_lsa_recv(ctx, state,
 106                                               &state->lsa_pipe,
 107                                               &state->lsa_policy);
 108         if (!composite_is_ok(state->ctx)) return;
 109
 110         state->num_domains = 0;
 111         state->domains = NULL;
 112
 113         state->domainlist.count = 0;
 114         state->domainlist.domains = NULL;
 115
 116         state->resume_handle = 0;
 117         state->r.in.handle = state->lsa_policy;
 118         state->r.in.resume_handle = &state->resume_handle;
 119         state->r.in.max_size = 1000;
 120         state->r.out.resume_handle = &state->resume_handle;
 121         state->r.out.domains = &state->domainlist;
 122
 123         req = dcerpc_lsa_EnumTrustDom_send(state->lsa_pipe, state, &state->r);
 124         composite_continue_rpc(state->ctx, req, cmd_list_trustdoms_recv_doms,
 125                                state);
 126 }
 127
 128 static void cmd_list_trustdoms_recv_doms(struct rpc_request *req)
 129 {
 130         struct cmd_list_trustdom_state *state =
 131                 talloc_get_type(req->async.private,
 132                                 struct cmd_list_trustdom_state);
 133         int i, old_num_domains;
 134
 135         state->ctx->status = dcerpc_ndr_request_recv(req);
 136         if (!composite_is_ok(state->ctx)) return;
 137         state->ctx->status = state->r.out.result;
 138
 139         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 140             !NT_STATUS_EQUAL(state->ctx->status, NT_STATUS_NO_MORE_ENTRIES) &&
 141             !NT_STATUS_EQUAL(state->ctx->status, STATUS_MORE_ENTRIES)) {
 142                 composite_error(state->ctx, state->ctx->status);
 143                 return;
 144         }
 145
 146         old_num_domains = state->num_domains;
 147
 148         state->num_domains += state->r.out.domains->count;
 149         state->domains = talloc_realloc(state, state->domains,
 150                                         struct wb_dom_info *,
 151                                         state->num_domains);
 152         if (composite_nomem(state->domains, state->ctx)) return;
 153
 154         for (i=0; i<state->r.out.domains->count; i++) {
 155                 int j = i+old_num_domains;
 156                 state->domains[j] = talloc(state->domains,
 157                                            struct wb_dom_info);
 158                 if (composite_nomem(state->domains[i], state->ctx)) return;
 159                 state->domains[j]->name = talloc_steal(
 160                         state->domains[j],
 161                         state->r.out.domains->domains[i].name.string);
 162                 state->domains[j]->sid = talloc_steal(
 163                         state->domains[j],
 164                         state->r.out.domains->domains[i].sid);
 165         }
 166
 167         if (NT_STATUS_IS_OK(state->ctx->status)) {
 168                 composite_done(state->ctx);
 169                 return;
 170         }
 171
 172         state->domainlist.count = 0;
 173         state->domainlist.domains = NULL;
 174         state->r.in.handle = state->lsa_policy;
 175         state->r.in.resume_handle = &state->resume_handle;
 176         state->r.in.max_size = 1000;
 177         state->r.out.resume_handle = &state->resume_handle;
 178         state->r.out.domains = &state->domainlist;
 179
 180         req = dcerpc_lsa_EnumTrustDom_send(state->lsa_pipe, state, &state->r);
 181         composite_continue_rpc(state->ctx, req, cmd_list_trustdoms_recv_doms,
 182                                state);
 183 }
 184
 185 NTSTATUS wb_cmd_list_trustdoms_recv(struct composite_context *ctx,
 186                                     TALLOC_CTX *mem_ctx,
 187                                     int *num_domains,
 188                                     struct wb_dom_info ***domains)
 189 {
 190         NTSTATUS status = composite_wait(ctx);
 191         if (NT_STATUS_IS_OK(status)) {
 192                 struct cmd_list_trustdom_state *state =
 193                         talloc_get_type(ctx->private_data,
 194                                         struct cmd_list_trustdom_state);
 195                 *num_domains = state->num_domains;
 196                 *domains = talloc_steal(mem_ctx, state->domains);
 197         }
 198         talloc_free(ctx);
 199         return status;
 200 }