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                                       const char *account_name,
  33                                       unsigned char orig_trust_passwd_hash[16],
  34                                       uint32 sec_channel_type)
  35 {
  36         unsigned char new_trust_passwd_hash[16];
  37         char *new_trust_passwd;
  38         NTSTATUS nt_status;
  39
  40         /* Create a random machine account password */
  41         new_trust_passwd = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
  42
  43         if (new_trust_passwd == NULL) {
  44                 DEBUG(0, ("talloc_strdup failed\n"));
  45                 return NT_STATUS_NO_MEMORY;
  46         }
  47
  48         E_md4hash(new_trust_passwd, new_trust_passwd_hash);
  49
  50         nt_status = rpccli_netlogon_set_trust_password(cli, mem_ctx,
  51                                                        account_name,
  52                                                        orig_trust_passwd_hash,
  53                                                        new_trust_passwd,
  54                                                        new_trust_passwd_hash,
  55                                                        sec_channel_type);
  56
  57         if (NT_STATUS_IS_OK(nt_status)) {
  58                 DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
  59                          current_timestring(debug_ctx(), False)));
  60                 /*
  61                  * Return the result of trying to write the new password
  62                  * back into the trust account file.
  63                  */
  64                 if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) {
  65                         nt_status = NT_STATUS_UNSUCCESSFUL;
  66                 }
  67         }
  68
  69         return nt_status;
  70 }
  71
  72 /*********************************************************
  73  Change the domain password on the PDC.
  74  Do most of the legwork ourselfs.  Caller must have
  75  already setup the connection to the NETLOGON pipe
  76 **********************************************************/
  77
  78 NTSTATUS trust_pw_find_change_and_store_it(struct rpc_pipe_client *cli,
  79                                            TALLOC_CTX *mem_ctx,
  80                                            const char *domain)
  81 {
  82         unsigned char old_trust_passwd_hash[16];
  83         uint32 sec_channel_type = 0;
  84
  85         if (!secrets_fetch_trust_account_password(domain,
  86                                                   old_trust_passwd_hash,
  87                                                   NULL, &sec_channel_type)) {
  88                 DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
  89                 return NT_STATUS_UNSUCCESSFUL;
  90         }
  91
  92         return trust_pw_change_and_store_it(cli, mem_ctx, domain,
  93                                             global_myname(),
  94                                             old_trust_passwd_hash,
  95                                             sec_channel_type);
  96 }
  97
  98 /*********************************************************************
  99  Enumerate the list of trusted domains from a DC
 100 *********************************************************************/
 101
 102 bool enumerate_domain_trusts( TALLOC_CTX *mem_ctx, const char *domain,
 103                                      char ***domain_names, uint32 *num_domains,
 104                                      DOM_SID **sids )
 105 {
 106         struct policy_handle    pol;
 107         NTSTATUS        result = NT_STATUS_UNSUCCESSFUL;
 108         fstring         dc_name;
 109         struct sockaddr_storage dc_ss;
 110         uint32          enum_ctx = 0;
 111         struct cli_state *cli = NULL;
 112         struct rpc_pipe_client *lsa_pipe;
 113         bool            retry;
 114         struct lsa_DomainList dom_list;
 115         int i;
 116
 117         *domain_names = NULL;
 118         *num_domains = 0;
 119         *sids = NULL;
 120
 121         /* lookup a DC first */
 122
 123         if ( !get_dc_name(domain, NULL, dc_name, &dc_ss) ) {
 124                 DEBUG(3,("enumerate_domain_trusts: can't locate a DC for domain %s\n",
 125                         domain));
 126                 return False;
 127         }
 128
 129         /* setup the anonymous connection */
 130
 131         result = cli_full_connection( &cli, global_myname(), dc_name, &dc_ss, 0, "IPC$", "IPC",
 132                 "", "", "", 0, Undefined, &retry);
 133         if ( !NT_STATUS_IS_OK(result) )
 134                 goto done;
 135
 136         /* open the LSARPC_PIPE */
 137
 138         result = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
 139                                           &lsa_pipe);
 140         if (!NT_STATUS_IS_OK(result)) {
 141                 goto done;
 142         }
 143
 144         /* get a handle */
 145
 146         result = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, True,
 147                 LSA_POLICY_VIEW_LOCAL_INFORMATION, &pol);
 148         if ( !NT_STATUS_IS_OK(result) )
 149                 goto done;
 150
 151         /* Lookup list of trusted domains */
 152
 153         result = rpccli_lsa_EnumTrustDom(lsa_pipe, mem_ctx,
 154                                          &pol,
 155                                          &enum_ctx,
 156                                          &dom_list,
 157                                          (uint32_t)-1);
 158         if ( !NT_STATUS_IS_OK(result) )
 159                 goto done;
 160
 161         *num_domains = dom_list.count;
 162
 163         *domain_names = TALLOC_ZERO_ARRAY(mem_ctx, char *, *num_domains);
 164         if (!*domain_names) {
 165                 result = NT_STATUS_NO_MEMORY;
 166                 goto done;
 167         }
 168
 169         *sids = TALLOC_ZERO_ARRAY(mem_ctx, DOM_SID, *num_domains);
 170         if (!*sids) {
 171                 result = NT_STATUS_NO_MEMORY;
 172                 goto done;
 173         }
 174
 175         for (i=0; i< *num_domains; i++) {
 176                 (*domain_names)[i] = CONST_DISCARD(char *, dom_list.domains[i].name.string);
 177                 (*sids)[i] = *dom_list.domains[i].sid;
 178         }
 179
 180 done:
 181         /* cleanup */
 182         if (cli) {
 183                 DEBUG(10,("enumerate_domain_trusts: shutting down connection...\n"));
 184                 cli_shutdown( cli );
 185         }
 186
 187         return NT_STATUS_IS_OK(result);
 188 }