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-rw-r--r--source3/libsmb/trusts_util.c169
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diff --git a/source3/libsmb/trusts_util.c b/source3/libsmb/trusts_util.c
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+/*
+ * 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;
+}
+