This commit was manufactured by cvs2svn to create branch 'SAMBA_3_0'.(This used to be commit a50dc3f836a898d1aef08afbd12e7221db24440a)

1 files changed, 169 insertions, 0 deletions

diff --git a/source3/libsmb/trusts_util.c b/source3/libsmb/trusts_util.c
new file mode 100644
index 0000000000..d5a02bb625
--- /dev/null
+++ b/source3/libsmb/trusts_util.c
@@ -0,0 +1,169 @@
+/* 
+ *  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 cli_state *cli, TALLOC_CTX *mem_ctx, 
+					 unsigned char orig_trust_passwd_hash[16],
+					 unsigned char new_trust_passwd_hash[16],
+					 uint32 sec_channel_type)
+{
+	NTSTATUS result;
+	uint32 neg_flags = 0x000001ff;
+
+	result = cli_nt_setup_creds(cli, sec_channel_type, orig_trust_passwd_hash, &neg_flags, 2);
+	
+	if (!NT_STATUS_IS_OK(result)) {
+		DEBUG(1,("just_change_the_password: unable to setup creds (%s)!\n",
+			 nt_errstr(result)));
+		return result;
+	}
+
+	result = cli_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 cli_state *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 cli_state *cli, 
+					   TALLOC_CTX *mem_ctx, 
+					   const char *domain) 
+{
+	unsigned char old_trust_passwd_hash[16];
+	char *up_domain;
+	uint32 sec_channel_type = 0;
+
+	up_domain = talloc_strdup(mem_ctx, domain);
+
+	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);
+	
+}
+
+
+/**
+ * Verify whether or not given domain is trusted.
+ *
+ * @param domain_name name of the domain to be verified
+ * @return true if domain is one of the trusted once or
+ *         false if otherwise
+ **/
+ 
+BOOL is_trusted_domain(const char* dom_name)
+{
+	DOM_SID trustdom_sid;
+	char *pass = NULL;
+	time_t lct;
+	BOOL ret;
+
+	if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
+		/*
+		 * Query the secrets db as an ultimate source of information
+		 * about trusted domain names. This is PDC or BDC case.
+		 */
+		ret = secrets_fetch_trusted_domain_password(dom_name, &pass, &trustdom_sid, &lct);
+		SAFE_FREE(pass);
+		if (ret) 
+			return ret;
+	}
+
+	/*
+	 * Query the trustdom_cache updated periodically. The only
+	 * way for domain member server.
+	 */
+	if (trustdom_cache_enable() &&
+		trustdom_cache_fetch(dom_name, &trustdom_sid)) {
+		trustdom_cache_shutdown();
+		return True;
+	}
+
+	/*
+	 * if nothing's been found, then give up here, although
+	 * the last resort might be to query the PDC.
+	 */
+	return False;
+}
+