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Diffstat (limited to 'source3/libsmb/trusts_util.c')
| -rw-r--r-- | source3/libsmb/trusts_util.c | 169 |
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; +} + |