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_c.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 = composite_create(mem_ctx, service->task->event_ctx);
  56         if (result == NULL) goto failed;
  57
  58         state = talloc(result, struct cmd_list_trustdom_state);
  59         if (state == NULL) goto failed;
  60         state->ctx = result;
  61         result->private_data = state;
  62
  63         ctx = wb_sid2domain_send(state, service, service->primary_sid);
  64         if (ctx == NULL) goto failed;
  65         ctx->async.fn = cmd_list_trustdoms_recv_domain;
  66         ctx->async.private_data = state;
  67         return result;
  68
  69  failed:
  70         talloc_free(result);
  71         return NULL;
  72 }
  73
  74 static void cmd_list_trustdoms_recv_domain(struct composite_context *ctx)
  75 {
  76         struct cmd_list_trustdom_state *state =
  77                 talloc_get_type(ctx->async.private_data,
  78                                 struct cmd_list_trustdom_state);
  79         struct wbsrv_domain *domain;
  80         struct smbcli_tree *tree;
  81
  82         state->ctx->status = wb_sid2domain_recv(ctx, &domain);
  83         if (!composite_is_ok(state->ctx)) return;
  84
  85         tree = dcerpc_smb_tree(domain->lsa_pipe->conn);
  86         if (composite_nomem(tree, state->ctx)) return;
  87
  88         ctx = wb_init_lsa_send(state, tree, domain->lsa_auth_type,
  89                                domain->schannel_creds);
  90         composite_continue(state->ctx, ctx, cmd_list_trustdoms_recv_lsa,
  91                            state);
  92 }
  93
  94 static void cmd_list_trustdoms_recv_lsa(struct composite_context *ctx)
  95 {
  96         struct cmd_list_trustdom_state *state =
  97                 talloc_get_type(ctx->async.private_data,
  98                                 struct cmd_list_trustdom_state);
  99         struct rpc_request *req;
 100
 101         state->ctx->status = wb_init_lsa_recv(ctx, state,
 102                                               &state->lsa_pipe,
 103                                               &state->lsa_policy);
 104         if (!composite_is_ok(state->ctx)) return;
 105
 106         state->num_domains = 0;
 107         state->domains = NULL;
 108
 109         state->domainlist.count = 0;
 110         state->domainlist.domains = NULL;
 111
 112         state->resume_handle = 0;
 113         state->r.in.handle = state->lsa_policy;
 114         state->r.in.resume_handle = &state->resume_handle;
 115         state->r.in.max_size = 1000;
 116         state->r.out.resume_handle = &state->resume_handle;
 117         state->r.out.domains = &state->domainlist;
 118
 119         req = dcerpc_lsa_EnumTrustDom_send(state->lsa_pipe, state, &state->r);
 120         composite_continue_rpc(state->ctx, req, cmd_list_trustdoms_recv_doms,
 121                                state);
 122 }
 123
 124 static void cmd_list_trustdoms_recv_doms(struct rpc_request *req)
 125 {
 126         struct cmd_list_trustdom_state *state =
 127                 talloc_get_type(req->async.private_data,
 128                                 struct cmd_list_trustdom_state);
 129         int i, old_num_domains;
 130
 131         state->ctx->status = dcerpc_ndr_request_recv(req);
 132         if (!composite_is_ok(state->ctx)) return;
 133         state->ctx->status = state->r.out.result;
 134
 135         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 136             !NT_STATUS_EQUAL(state->ctx->status, NT_STATUS_NO_MORE_ENTRIES) &&
 137             !NT_STATUS_EQUAL(state->ctx->status, STATUS_MORE_ENTRIES)) {
 138                 composite_error(state->ctx, state->ctx->status);
 139                 return;
 140         }
 141
 142         old_num_domains = state->num_domains;
 143
 144         state->num_domains += state->r.out.domains->count;
 145         state->domains = talloc_realloc(state, state->domains,
 146                                         struct wb_dom_info *,
 147                                         state->num_domains);
 148         if (composite_nomem(state->domains, state->ctx)) return;
 149
 150         for (i=0; i<state->r.out.domains->count; i++) {
 151                 int j = i+old_num_domains;
 152                 state->domains[j] = talloc(state->domains,
 153                                            struct wb_dom_info);
 154                 if (composite_nomem(state->domains[i], state->ctx)) return;
 155                 state->domains[j]->name = talloc_steal(
 156                         state->domains[j],
 157                         state->r.out.domains->domains[i].name.string);
 158                 state->domains[j]->sid = talloc_steal(
 159                         state->domains[j],
 160                         state->r.out.domains->domains[i].sid);
 161         }
 162
 163         if (NT_STATUS_IS_OK(state->ctx->status)) {
 164                 composite_done(state->ctx);
 165                 return;
 166         }
 167
 168         state->domainlist.count = 0;
 169         state->domainlist.domains = NULL;
 170         state->r.in.handle = state->lsa_policy;
 171         state->r.in.resume_handle = &state->resume_handle;
 172         state->r.in.max_size = 1000;
 173         state->r.out.resume_handle = &state->resume_handle;
 174         state->r.out.domains = &state->domainlist;
 175
 176         req = dcerpc_lsa_EnumTrustDom_send(state->lsa_pipe, state, &state->r);
 177         composite_continue_rpc(state->ctx, req, cmd_list_trustdoms_recv_doms,
 178                                state);
 179 }
 180
 181 NTSTATUS wb_cmd_list_trustdoms_recv(struct composite_context *ctx,
 182                                     TALLOC_CTX *mem_ctx,
 183                                     int *num_domains,
 184                                     struct wb_dom_info ***domains)
 185 {
 186         NTSTATUS status = composite_wait(ctx);
 187         if (NT_STATUS_IS_OK(status)) {
 188                 struct cmd_list_trustdom_state *state =
 189                         talloc_get_type(ctx->private_data,
 190                                         struct cmd_list_trustdom_state);
 191                 *num_domains = state->num_domains;
 192                 *domains = talloc_steal(mem_ctx, state->domains);
 193         }
 194         talloc_free(ctx);
 195         return status;
 196 }