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