| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | krb5 set password implementation
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| 4 | Copyright (C) Andrew Tridgell 2001
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| 5 | Copyright (C) Remus Koos 2001 (remuskoos@yahoo.com)
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| 6 |
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| 7 | This program is free software; you can redistribute it and/or modify
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| 8 | it under the terms of the GNU General Public License as published by
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| 9 | the Free Software Foundation; either version 3 of the License, or
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| 10 | (at your option) any later version.
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| 11 |
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| 12 | This program is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | GNU General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU General Public License
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| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 |
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| 21 | #include "includes.h"
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| 22 | #include "smb_krb5.h"
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| 23 | #include "ads.h"
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| 24 |
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| 25 | #ifdef HAVE_KRB5
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| 26 |
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| 27 | /**
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| 28 | * Set the machine account password
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| 29 | * @param ads connection to ads server
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| 30 | * @param hostname machine whose password is being set
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| 31 | * @param password new password
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| 32 | * @return status of password change
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| 33 | **/
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| 34 | ADS_STATUS ads_set_machine_password(ADS_STRUCT *ads,
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| 35 | const char *machine_account,
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| 36 | const char *password)
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| 37 | {
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| 38 | ADS_STATUS status;
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| 39 | char *principal = NULL;
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| 40 |
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| 41 | /*
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| 42 | we need to use the '$' form of the name here (the machine account name),
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| 43 | as otherwise the server might end up setting the password for a user
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| 44 | instead
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| 45 | */
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| 46 | if (asprintf(&principal, "%s@%s", machine_account, ads->config.realm) < 0) {
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| 47 | return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
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| 48 | }
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| 49 |
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| 50 | status = ads_krb5_set_password(ads->auth.kdc_server, principal,
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| 51 | password, ads->auth.time_offset);
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| 52 |
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| 53 | SAFE_FREE(principal);
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| 54 | return status;
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| 55 | }
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| 56 |
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| 57 | /* run kinit to setup our ccache */
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| 58 | int ads_kinit_password(ADS_STRUCT *ads)
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| 59 | {
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| 60 | char *s;
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| 61 | int ret;
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| 62 | const char *account_name;
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| 63 | fstring acct_name;
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| 64 |
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| 65 | if (ads->auth.flags & ADS_AUTH_USER_CREDS) {
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| 66 | account_name = ads->auth.user_name;
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| 67 | goto got_accountname;
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| 68 | }
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| 69 |
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| 70 | if ( IS_DC ) {
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| 71 | /* this will end up getting a ticket for DOMAIN@RUSTED.REA.LM */
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| 72 | account_name = lp_workgroup();
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| 73 | } else {
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| 74 | /* always use the sAMAccountName for security = domain */
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| 75 | /* global_myname()$@REA.LM */
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| 76 | if ( lp_security() == SEC_DOMAIN ) {
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| 77 | fstr_sprintf( acct_name, "%s$", global_myname() );
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| 78 | account_name = acct_name;
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| 79 | }
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| 80 | else
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| 81 | /* This looks like host/global_myname()@REA.LM */
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| 82 | account_name = ads->auth.user_name;
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| 83 | }
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| 84 |
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| 85 | got_accountname:
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| 86 | if (asprintf(&s, "%s@%s", account_name, ads->auth.realm) == -1) {
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| 87 | return KRB5_CC_NOMEM;
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| 88 | }
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| 89 |
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| 90 | if (!ads->auth.password) {
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| 91 | SAFE_FREE(s);
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| 92 | return KRB5_LIBOS_CANTREADPWD;
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| 93 | }
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| 94 |
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| 95 | ret = kerberos_kinit_password_ext(s, ads->auth.password, ads->auth.time_offset,
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| 96 | &ads->auth.tgt_expire, NULL, NULL, False, False, ads->auth.renewable,
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| 97 | NULL);
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| 98 |
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| 99 | if (ret) {
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| 100 | DEBUG(0,("kerberos_kinit_password %s failed: %s\n",
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| 101 | s, error_message(ret)));
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| 102 | }
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| 103 | SAFE_FREE(s);
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| 104 | return ret;
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| 105 | }
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| 106 |
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| 107 | #endif
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