source3/libsmb/trusts_util.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Routines to operate on various trust relationships
   4  *  Copyright (C) Andrew Bartlett                   2001
   5  *  Copyright (C) Rafal Szczesniak                  2003
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "includes.h"
  22 #include "../libcli/auth/libcli_auth.h"
  23
  24 /*********************************************************
  25  Change the domain password on the PDC.
  26  Store the password ourselves, but use the supplied password
  27  Caller must have already setup the connection to the NETLOGON pipe
  28 **********************************************************/
  29
  30 NTSTATUS trust_pw_change_and_store_it(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx,
  31                                       const char *domain,
  32                                       unsigned char orig_trust_passwd_hash[16],
  33                                       uint32 sec_channel_type)
  34 {
  35         unsigned char new_trust_passwd_hash[16];
  36         char *new_trust_passwd;
  37         NTSTATUS nt_status;
  38
  39         /* Create a random machine account password */
  40         new_trust_passwd = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
  41
  42         if (new_trust_passwd == NULL) {
  43                 DEBUG(0, ("talloc_strdup failed\n"));
  44                 return NT_STATUS_NO_MEMORY;
  45         }
  46
  47         E_md4hash(new_trust_passwd, new_trust_passwd_hash);
  48
  49         nt_status = rpccli_netlogon_set_trust_password(cli, mem_ctx,
  50                                                        orig_trust_passwd_hash,
  51                                                        new_trust_passwd,
  52                                                        new_trust_passwd_hash,
  53                                                        sec_channel_type);
  54
  55         if (NT_STATUS_IS_OK(nt_status)) {
  56                 DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
  57                          current_timestring(debug_ctx(), False)));
  58                 /*
  59                  * Return the result of trying to write the new password
  60                  * back into the trust account file.
  61                  */
  62                 if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) {
  63                         nt_status = NT_STATUS_UNSUCCESSFUL;
  64                 }
  65         }
  66
  67         return nt_status;
  68 }
  69
  70 /*********************************************************
  71  Change the domain password on the PDC.
  72  Do most of the legwork ourselfs.  Caller must have
  73  already setup the connection to the NETLOGON pipe
  74 **********************************************************/
  75
  76 NTSTATUS trust_pw_find_change_and_store_it(struct rpc_pipe_client *cli,
  77                                            TALLOC_CTX *mem_ctx,
  78                                            const char *domain)
  79 {
  80         unsigned char old_trust_passwd_hash[16];
  81         uint32 sec_channel_type = 0;
  82
  83         if (!secrets_fetch_trust_account_password(domain,
  84                                                   old_trust_passwd_hash,
  85                                                   NULL, &sec_channel_type)) {
  86                 DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
  87                 return NT_STATUS_UNSUCCESSFUL;
  88         }
  89
  90         return trust_pw_change_and_store_it(cli, mem_ctx, domain,
  91                                             old_trust_passwd_hash,
  92                                             sec_channel_type);
  93 }
  94
  95 /*********************************************************************
  96  Enumerate the list of trusted domains from a DC
  97 *********************************************************************/
  98
  99 bool enumerate_domain_trusts( TALLOC_CTX *mem_ctx, const char *domain,
 100                                      char ***domain_names, uint32 *num_domains,
 101                                      DOM_SID **sids )
 102 {
 103         struct policy_handle    pol;
 104         NTSTATUS        result = NT_STATUS_UNSUCCESSFUL;
 105         fstring         dc_name;
 106         struct sockaddr_storage dc_ss;
 107         uint32          enum_ctx = 0;
 108         struct cli_state *cli = NULL;
 109         struct rpc_pipe_client *lsa_pipe;
 110         bool            retry;
 111         struct lsa_DomainList dom_list;
 112         int i;
 113
 114         *domain_names = NULL;
 115         *num_domains = 0;
 116         *sids = NULL;
 117
 118         /* lookup a DC first */
 119
 120         if ( !get_dc_name(domain, NULL, dc_name, &dc_ss) ) {
 121                 DEBUG(3,("enumerate_domain_trusts: can't locate a DC for domain %s\n",
 122                         domain));
 123                 return False;
 124         }
 125
 126         /* setup the anonymous connection */
 127
 128         result = cli_full_connection( &cli, global_myname(), dc_name, &dc_ss, 0, "IPC$", "IPC",
 129                 "", "", "", 0, Undefined, &retry);
 130         if ( !NT_STATUS_IS_OK(result) )
 131                 goto done;
 132
 133         /* open the LSARPC_PIPE */
 134
 135         result = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
 136                                           &lsa_pipe);
 137         if (!NT_STATUS_IS_OK(result)) {
 138                 goto done;
 139         }
 140
 141         /* get a handle */
 142
 143         result = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, True,
 144                 LSA_POLICY_VIEW_LOCAL_INFORMATION, &pol);
 145         if ( !NT_STATUS_IS_OK(result) )
 146                 goto done;
 147
 148         /* Lookup list of trusted domains */
 149
 150         result = rpccli_lsa_EnumTrustDom(lsa_pipe, mem_ctx,
 151                                          &pol,
 152                                          &enum_ctx,
 153                                          &dom_list,
 154                                          (uint32_t)-1);
 155         if ( !NT_STATUS_IS_OK(result) )
 156                 goto done;
 157
 158         *num_domains = dom_list.count;
 159
 160         *domain_names = TALLOC_ZERO_ARRAY(mem_ctx, char *, *num_domains);
 161         if (!*domain_names) {
 162                 result = NT_STATUS_NO_MEMORY;
 163                 goto done;
 164         }
 165
 166         *sids = TALLOC_ZERO_ARRAY(mem_ctx, DOM_SID, *num_domains);
 167         if (!*sids) {
 168                 result = NT_STATUS_NO_MEMORY;
 169                 goto done;
 170         }
 171
 172         for (i=0; i< *num_domains; i++) {
 173                 (*domain_names)[i] = CONST_DISCARD(char *, dom_list.domains[i].name.string);
 174                 (*sids)[i] = *dom_list.domains[i].sid;
 175         }
 176
 177 done:
 178         /* cleanup */
 179         if (cli) {
 180                 DEBUG(10,("enumerate_domain_trusts: shutting down connection...\n"));
 181                 cli_shutdown( cli );
 182         }
 183
 184         return NT_STATUS_IS_OK(result);
 185 }