| 1 | /* Unix NT password database implementation, version 0.7.5.
|
|---|
| 2 | *
|
|---|
| 3 | * This program is free software; you can redistribute it and/or modify it under
|
|---|
| 4 | * the terms of the GNU General Public License as published by the Free
|
|---|
| 5 | * Software Foundation; either version 3 of the License, or (at your option)
|
|---|
| 6 | * any later version.
|
|---|
| 7 | *
|
|---|
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT
|
|---|
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|---|
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|---|
| 11 | * more details.
|
|---|
| 12 | *
|
|---|
| 13 | * You should have received a copy of the GNU General Public License along with
|
|---|
| 14 | * this program; if not, see <http://www.gnu.org/licenses/>.
|
|---|
| 15 | */
|
|---|
| 16 |
|
|---|
| 17 | /* indicate the following groups are defined */
|
|---|
| 18 | #define PAM_SM_ACCT
|
|---|
| 19 |
|
|---|
| 20 | #include "includes.h"
|
|---|
| 21 |
|
|---|
| 22 | #ifndef LINUX
|
|---|
| 23 |
|
|---|
| 24 | /* This is only used in the Sun implementation. */
|
|---|
| 25 | #if defined(HAVE_SECURITY_PAM_APPL_H)
|
|---|
| 26 | #include <security/pam_appl.h>
|
|---|
| 27 | #elif defined(HAVE_PAM_PAM_APPL_H)
|
|---|
| 28 | #include <pam/pam_appl.h>
|
|---|
| 29 | #endif
|
|---|
| 30 |
|
|---|
| 31 | #endif /* LINUX */
|
|---|
| 32 |
|
|---|
| 33 | #if defined(HAVE_SECURITY_PAM_MODULES_H)
|
|---|
| 34 | #include <security/pam_modules.h>
|
|---|
| 35 | #elif defined(HAVE_PAM_PAM_MODULES_H)
|
|---|
| 36 | #include <pam/pam_modules.h>
|
|---|
| 37 | #endif
|
|---|
| 38 |
|
|---|
| 39 | #include "general.h"
|
|---|
| 40 |
|
|---|
| 41 | #include "support.h"
|
|---|
| 42 |
|
|---|
| 43 |
|
|---|
| 44 | /*
|
|---|
| 45 | * pam_sm_acct_mgmt() verifies whether or not the account is disabled.
|
|---|
| 46 | *
|
|---|
| 47 | */
|
|---|
| 48 |
|
|---|
| 49 | int pam_sm_acct_mgmt( pam_handle_t *pamh, int flags,
|
|---|
| 50 | int argc, const char **argv )
|
|---|
| 51 | {
|
|---|
| 52 | unsigned int ctrl;
|
|---|
| 53 | int retval;
|
|---|
| 54 |
|
|---|
| 55 | const char *name;
|
|---|
| 56 | struct samu *sampass = NULL;
|
|---|
| 57 | void (*oldsig_handler)(int);
|
|---|
| 58 |
|
|---|
| 59 | /* Samba initialization. */
|
|---|
| 60 | load_case_tables_library();
|
|---|
| 61 | lp_set_in_client(True);
|
|---|
| 62 |
|
|---|
| 63 | ctrl = set_ctrl(pamh, flags, argc, argv );
|
|---|
| 64 |
|
|---|
| 65 | /* get the username */
|
|---|
| 66 |
|
|---|
| 67 | retval = pam_get_user( pamh, &name, "Username: " );
|
|---|
| 68 | if (retval != PAM_SUCCESS) {
|
|---|
| 69 | if (on( SMB_DEBUG, ctrl )) {
|
|---|
| 70 | _log_err(pamh, LOG_DEBUG, "acct: could not identify user" );
|
|---|
| 71 | }
|
|---|
| 72 | return retval;
|
|---|
| 73 | }
|
|---|
| 74 | if (on( SMB_DEBUG, ctrl )) {
|
|---|
| 75 | _log_err(pamh, LOG_DEBUG, "acct: username [%s] obtained", name );
|
|---|
| 76 | }
|
|---|
| 77 |
|
|---|
| 78 | if (geteuid() != 0) {
|
|---|
| 79 | _log_err(pamh, LOG_DEBUG, "Cannot access samba password database, not running as root.");
|
|---|
| 80 | return PAM_AUTHINFO_UNAVAIL;
|
|---|
| 81 | }
|
|---|
| 82 |
|
|---|
| 83 | /* Getting into places that might use LDAP -- protect the app
|
|---|
| 84 | from a SIGPIPE it's not expecting */
|
|---|
| 85 | oldsig_handler = CatchSignal(SIGPIPE, SIG_IGN);
|
|---|
| 86 | if (!initialize_password_db(True, NULL)) {
|
|---|
| 87 | _log_err(pamh, LOG_ALERT, "Cannot access samba password database" );
|
|---|
| 88 | CatchSignal(SIGPIPE, oldsig_handler);
|
|---|
| 89 | return PAM_AUTHINFO_UNAVAIL;
|
|---|
| 90 | }
|
|---|
| 91 |
|
|---|
| 92 | /* Get the user's record. */
|
|---|
| 93 |
|
|---|
| 94 | if (!(sampass = samu_new( NULL ))) {
|
|---|
| 95 | CatchSignal(SIGPIPE, oldsig_handler);
|
|---|
| 96 | /* malloc fail. */
|
|---|
| 97 | return nt_status_to_pam(NT_STATUS_NO_MEMORY);
|
|---|
| 98 | }
|
|---|
| 99 |
|
|---|
| 100 | if (!pdb_getsampwnam(sampass, name )) {
|
|---|
| 101 | _log_err(pamh, LOG_DEBUG, "acct: could not identify user");
|
|---|
| 102 | CatchSignal(SIGPIPE, oldsig_handler);
|
|---|
| 103 | return PAM_USER_UNKNOWN;
|
|---|
| 104 | }
|
|---|
| 105 |
|
|---|
| 106 | /* check for lookup failure */
|
|---|
| 107 | if (!strlen(pdb_get_username(sampass)) ) {
|
|---|
| 108 | CatchSignal(SIGPIPE, oldsig_handler);
|
|---|
| 109 | return PAM_USER_UNKNOWN;
|
|---|
| 110 | }
|
|---|
| 111 |
|
|---|
| 112 | if (pdb_get_acct_ctrl(sampass) & ACB_DISABLED) {
|
|---|
| 113 | if (on( SMB_DEBUG, ctrl )) {
|
|---|
| 114 | _log_err(pamh, LOG_DEBUG,
|
|---|
| 115 | "acct: account %s is administratively disabled", name);
|
|---|
| 116 | }
|
|---|
| 117 | make_remark( pamh, ctrl, PAM_ERROR_MSG
|
|---|
| 118 | , "Your account has been disabled; "
|
|---|
| 119 | "please see your system administrator." );
|
|---|
| 120 |
|
|---|
| 121 | CatchSignal(SIGPIPE, oldsig_handler);
|
|---|
| 122 | return PAM_ACCT_EXPIRED;
|
|---|
| 123 | }
|
|---|
| 124 |
|
|---|
| 125 | /* TODO: support for expired passwords. */
|
|---|
| 126 |
|
|---|
| 127 | CatchSignal(SIGPIPE, oldsig_handler);
|
|---|
| 128 | return PAM_SUCCESS;
|
|---|
| 129 | }
|
|---|
| 130 |
|
|---|
| 131 | /* static module data */
|
|---|
| 132 | #ifdef PAM_STATIC
|
|---|
| 133 | struct pam_module _pam_smbpass_acct_modstruct = {
|
|---|
| 134 | "pam_smbpass",
|
|---|
| 135 | NULL,
|
|---|
| 136 | NULL,
|
|---|
| 137 | pam_sm_acct_mgmt,
|
|---|
| 138 | NULL,
|
|---|
| 139 | NULL,
|
|---|
| 140 | NULL
|
|---|
| 141 | };
|
|---|
| 142 | #endif
|
|---|
| 143 |
|
|---|
