Initial import
[samba] / source / libsmb / trusts_util.c
diff --git a/source/libsmb/trusts_util.c b/source/libsmb/trusts_util.c
new file mode 100644 (file)
index 0000000..9d94c1d
--- /dev/null
@@ -0,0 +1,201 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  Routines to operate on various trust relationships
+ *  Copyright (C) Andrew Bartlett                   2001
+ *  Copyright (C) Rafal Szczesniak                  2003
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+/*********************************************************
+ Change the domain password on the PDC.
+
+ Just changes the password betwen the two values specified.
+
+ Caller must have the cli connected to the netlogon pipe
+ already.
+**********************************************************/
+
+static NTSTATUS just_change_the_password(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, 
+                                        const unsigned char orig_trust_passwd_hash[16],
+                                        const unsigned char new_trust_passwd_hash[16],
+                                        uint32 sec_channel_type)
+{
+       NTSTATUS result;
+
+       /* Check if the netlogon pipe is open using schannel. If so we
+          already have valid creds. If not we must set them up. */
+
+       if (cli->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) {
+               uint32 neg_flags = NETLOGON_NEG_AUTH2_FLAGS;
+
+               result = rpccli_netlogon_setup_creds(cli, 
+                                       cli->cli->desthost, /* server name */
+                                       lp_workgroup(), /* domain */
+                                       global_myname(), /* client name */
+                                       global_myname(), /* machine account name */
+                                       orig_trust_passwd_hash,
+                                       sec_channel_type,
+                                       &neg_flags);
+
+               if (!NT_STATUS_IS_OK(result)) {
+                       DEBUG(3,("just_change_the_password: unable to setup creds (%s)!\n",
+                                nt_errstr(result)));
+                       return result;
+               }
+       }
+
+       result = rpccli_net_srv_pwset(cli, mem_ctx, global_myname(), new_trust_passwd_hash);
+
+       if (!NT_STATUS_IS_OK(result)) {
+               DEBUG(0,("just_change_the_password: unable to change password (%s)!\n",
+                        nt_errstr(result)));
+       }
+       return result;
+}
+
+/*********************************************************
+ Change the domain password on the PDC.
+ Store the password ourselves, but use the supplied password
+ Caller must have already setup the connection to the NETLOGON pipe
+**********************************************************/
+
+NTSTATUS trust_pw_change_and_store_it(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, 
+                                     const char *domain,
+                                     unsigned char orig_trust_passwd_hash[16],
+                                     uint32 sec_channel_type)
+{
+       unsigned char new_trust_passwd_hash[16];
+       char *new_trust_passwd;
+       char *str;
+       NTSTATUS nt_status;
+               
+       /* Create a random machine account password */
+       str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
+       new_trust_passwd = talloc_strdup(mem_ctx, str);
+       
+       E_md4hash(new_trust_passwd, new_trust_passwd_hash);
+
+       nt_status = just_change_the_password(cli, mem_ctx, orig_trust_passwd_hash,
+                                            new_trust_passwd_hash, sec_channel_type);
+       
+       if (NT_STATUS_IS_OK(nt_status)) {
+               DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n", 
+                        timestring(False)));
+               /*
+                * Return the result of trying to write the new password
+                * back into the trust account file.
+                */
+               if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) {
+                       nt_status = NT_STATUS_UNSUCCESSFUL;
+               }
+       }
+
+       return nt_status;
+}
+
+/*********************************************************
+ Change the domain password on the PDC.
+ Do most of the legwork ourselfs.  Caller must have
+ already setup the connection to the NETLOGON pipe
+**********************************************************/
+
+NTSTATUS trust_pw_find_change_and_store_it(struct rpc_pipe_client *cli, 
+                                          TALLOC_CTX *mem_ctx, 
+                                          const char *domain) 
+{
+       unsigned char old_trust_passwd_hash[16];
+       uint32 sec_channel_type = 0;
+
+       if (!secrets_fetch_trust_account_password(domain,
+                                                 old_trust_passwd_hash, 
+                                                 NULL, &sec_channel_type)) {
+               DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
+               return NT_STATUS_UNSUCCESSFUL;
+       }
+       
+       return trust_pw_change_and_store_it(cli, mem_ctx, domain,
+                                           old_trust_passwd_hash,
+                                           sec_channel_type);
+}
+
+/*********************************************************************
+ Enumerate the list of trusted domains from a DC
+*********************************************************************/
+
+BOOL enumerate_domain_trusts( TALLOC_CTX *mem_ctx, const char *domain,
+                                     char ***domain_names, uint32 *num_domains,
+                                    DOM_SID **sids )
+{
+       POLICY_HND      pol;
+       NTSTATUS        result = NT_STATUS_UNSUCCESSFUL;
+       fstring         dc_name;
+       struct in_addr  dc_ip;
+       uint32          enum_ctx = 0;
+       struct cli_state *cli = NULL;
+       struct rpc_pipe_client *lsa_pipe;
+       BOOL            retry;
+
+       *domain_names = NULL;
+       *num_domains = 0;
+       *sids = NULL;
+
+       /* lookup a DC first */
+
+       if ( !get_dc_name(domain, NULL, dc_name, &dc_ip) ) {
+               DEBUG(3,("enumerate_domain_trusts: can't locate a DC for domain %s\n",
+                       domain));
+               return False;
+       }
+
+       /* setup the anonymous connection */
+
+       result = cli_full_connection( &cli, global_myname(), dc_name, &dc_ip, 0, "IPC$", "IPC",
+               "", "", "", 0, Undefined, &retry);
+       if ( !NT_STATUS_IS_OK(result) )
+               goto done;
+
+       /* open the LSARPC_PIPE */
+
+       lsa_pipe = cli_rpc_pipe_open_noauth( cli, PI_LSARPC, &result );
+       if ( !lsa_pipe) {
+               goto done;
+       }
+
+       /* get a handle */
+
+       result = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, True,
+               POLICY_VIEW_LOCAL_INFORMATION, &pol);
+       if ( !NT_STATUS_IS_OK(result) )
+               goto done;
+
+       /* Lookup list of trusted domains */
+
+       result = rpccli_lsa_enum_trust_dom(lsa_pipe, mem_ctx, &pol, &enum_ctx,
+               num_domains, domain_names, sids);
+       if ( !NT_STATUS_IS_OK(result) )
+               goto done;
+
+done:
+       /* cleanup */
+       if (cli) {
+               DEBUG(10,("enumerate_domain_trusts: shutting down connection...\n"));
+               cli_shutdown( cli );
+       }
+
+       return NT_STATUS_IS_OK(result);
+}