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Diffstat (limited to 'source4/pam_smbpass/pam_smb_passwd.c')
-rw-r--r--source4/pam_smbpass/pam_smb_passwd.c330
1 files changed, 0 insertions, 330 deletions
diff --git a/source4/pam_smbpass/pam_smb_passwd.c b/source4/pam_smbpass/pam_smb_passwd.c
deleted file mode 100644
index 5e6d6060a4..0000000000
--- a/source4/pam_smbpass/pam_smb_passwd.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/* Unix NT password database implementation, version 0.7.5.
- *
- * 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.
-*/
-
-/* indicate the following groups are defined */
-#define PAM_SM_PASSWORD
-
-#include "includes.h"
-
-#ifndef LINUX
-
-/* This is only used in the Sun implementation. */
-#include <security/pam_appl.h>
-
-#endif /* LINUX */
-
-#include <security/pam_modules.h>
-
-#include "general.h"
-
-#include "support.h"
-
-int smb_update_db( pam_handle_t *pamh, int ctrl, const char *user, const char *pass_new )
-{
- int retval;
- pstring err_str;
- pstring msg_str;
-
- err_str[0] = '\0';
- msg_str[0] = '\0';
-
- retval = local_password_change( user, 0, pass_new, err_str, sizeof(err_str),
- msg_str, sizeof(msg_str) );
-
- if (!retval) {
- if (*err_str) {
- err_str[PSTRING_LEN-1] = '\0';
- make_remark( pamh, ctrl, PAM_ERROR_MSG, err_str );
- }
-
- /* FIXME: what value is appropriate here? */
- retval = PAM_AUTHTOK_ERR;
- } else {
- if (*msg_str) {
- msg_str[PSTRING_LEN-1] = '\0';
- make_remark( pamh, ctrl, PAM_TEXT_INFO, msg_str );
- }
- retval = PAM_SUCCESS;
- }
-
- return retval;
-
-}
-
-
-/* data tokens */
-
-#define _SMB_OLD_AUTHTOK "-SMB-OLD-PASS"
-#define _SMB_NEW_AUTHTOK "-SMB-NEW-PASS"
-
-/*
- * FUNCTION: pam_sm_chauthtok()
- *
- * This function is called twice by the PAM library, once with
- * PAM_PRELIM_CHECK set, and then again with PAM_UPDATE_AUTHTOK set. With
- * Linux-PAM, these two passes generally involve first checking the old
- * token and then changing the token. This is what we do here.
- *
- * Having obtained a new password. The function updates the
- * SMB_PASSWD_FILE file (normally, $(LIBDIR)/smbpasswd).
- */
-
-int pam_sm_chauthtok(pam_handle_t *pamh, int flags,
- int argc, const char **argv)
-{
- unsigned int ctrl;
- int retval;
-
- extern BOOL in_client;
-
- SAM_ACCOUNT *sampass = NULL;
- const char *user;
- char *pass_old;
- char *pass_new;
-
- NTSTATUS nt_status;
-
- /* Samba initialization. */
- setup_logging( "pam_smbpass", DEBUG_FILE );
- in_client = True;
-
- ctrl = set_ctrl(flags, argc, argv);
-
- /*
- * First get the name of a user. No need to do anything if we can't
- * determine this.
- */
-
- retval = pam_get_user( pamh, &user, "Username: " );
- if (retval != PAM_SUCCESS) {
- if (on( SMB_DEBUG, ctrl )) {
- _log_err( LOG_DEBUG, "password: could not identify user" );
- }
- return retval;
- }
- if (on( SMB_DEBUG, ctrl )) {
- _log_err( LOG_DEBUG, "username [%s] obtained", user );
- }
-
- if (!initialize_password_db(True)) {
- _log_err( LOG_ALERT, "Cannot access samba password database" );
- return PAM_AUTHINFO_UNAVAIL;
- }
-
- /* obtain user record */
- if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(&sampass))) {
- return nt_status_to_pam(nt_status);
- }
-
- if (!pdb_getsampwnam(sampass,user)) {
- _log_err( LOG_ALERT, "Failed to find entry for user %s.", user );
- return PAM_USER_UNKNOWN;
- }
-
- if (flags & PAM_PRELIM_CHECK) {
- /*
- * obtain and verify the current password (OLDAUTHTOK) for
- * the user.
- */
-
- char *Announce;
-
- if (_smb_blankpasswd( ctrl, sampass )) {
-
- pdb_free_sam(&sampass);
- return PAM_SUCCESS;
- }
-
- /* Password change by root, or for an expired token, doesn't
- require authentication. Is this a good choice? */
- if (getuid() != 0 && !(flags & PAM_CHANGE_EXPIRED_AUTHTOK)) {
-
- /* tell user what is happening */
-#define greeting "Changing password for "
- Announce = (char *) malloc(sizeof(greeting)+strlen(user));
- if (Announce == NULL) {
- _log_err(LOG_CRIT, "password: out of memory");
- pdb_free_sam(&sampass);
- return PAM_BUF_ERR;
- }
- strncpy( Announce, greeting, sizeof(greeting) );
- strncpy( Announce+sizeof(greeting)-1, user, strlen(user)+1 );
-#undef greeting
-
- set( SMB__OLD_PASSWD, ctrl );
- retval = _smb_read_password( pamh, ctrl, Announce, "Current SMB password: ",
- NULL, _SMB_OLD_AUTHTOK, &pass_old );
- SAFE_FREE( Announce );
-
- if (retval != PAM_SUCCESS) {
- _log_err( LOG_NOTICE
- , "password - (old) token not obtained" );
- pdb_free_sam(&sampass);
- return retval;
- }
-
- /* verify that this is the password for this user */
-
- retval = _smb_verify_password( pamh, sampass, pass_old, ctrl );
-
- } else {
- pass_old = NULL;
- retval = PAM_SUCCESS; /* root doesn't have to */
- }
-
- pass_old = NULL;
- pdb_free_sam(&sampass);
- return retval;
-
- } else if (flags & PAM_UPDATE_AUTHTOK) {
-
-#if 0
- /* We used to return when this flag was set, but that breaks
- password synchronization when /other/ tokens are expired. For
- now, we change the password whenever we're asked. SRL */
- if (flags & PAM_CHANGE_EXPIRED_AUTHTOK) {
- pdb_free_sam(&sampass);
- return PAM_SUCCESS;
- }
-#endif
- /*
- * obtain the proposed password
- */
-
- /*
- * get the old token back. NULL was ok only if root [at this
- * point we assume that this has already been enforced on a
- * previous call to this function].
- */
-
- if (off( SMB_NOT_SET_PASS, ctrl )) {
- retval = pam_get_item( pamh, PAM_OLDAUTHTOK,
- (const void **)&pass_old );
- } else {
- retval = pam_get_data( pamh, _SMB_OLD_AUTHTOK,
- (const void **)&pass_old );
- if (retval == PAM_NO_MODULE_DATA) {
- pass_old = NULL;
- retval = PAM_SUCCESS;
- }
- }
-
- if (retval != PAM_SUCCESS) {
- _log_err( LOG_NOTICE, "password: user not authenticated" );
- pdb_free_sam(&sampass);
- return retval;
- }
-
- /*
- * use_authtok is to force the use of a previously entered
- * password -- needed for pluggable password strength checking
- * or other module stacking
- */
-
- if (on( SMB_USE_AUTHTOK, ctrl )) {
- set( SMB_USE_FIRST_PASS, ctrl );
- }
-
- retval = _smb_read_password( pamh, ctrl
- , NULL
- , "Enter new SMB password: "
- , "Retype new SMB password: "
- , _SMB_NEW_AUTHTOK
- , &pass_new );
-
- if (retval != PAM_SUCCESS) {
- if (on( SMB_DEBUG, ctrl )) {
- _log_err( LOG_ALERT
- , "password: new password not obtained" );
- }
- pass_old = NULL; /* tidy up */
- pdb_free_sam(&sampass);
- return retval;
- }
-
- /*
- * At this point we know who the user is and what they
- * propose as their new password. Verify that the new
- * password is acceptable.
- */
-
- if (pass_new[0] == '\0') { /* "\0" password = NULL */
- pass_new = NULL;
- }
-
- retval = _pam_smb_approve_pass(pamh, ctrl, pass_old, pass_new);
-
- if (retval != PAM_SUCCESS) {
- _log_err(LOG_NOTICE, "new password not acceptable");
- pass_new = pass_old = NULL; /* tidy up */
- pdb_free_sam(&sampass);
- return retval;
- }
-
- /*
- * By reaching here we have approved the passwords and must now
- * rebuild the smb password file.
- */
-
- /* update the password database */
-
- retval = smb_update_db(pamh, ctrl, user, pass_new);
- if (retval == PAM_SUCCESS) {
- /* password updated */
- _log_err( LOG_NOTICE, "password for (%s/%d) changed by (%s/%d)"
- , user, pdb_get_uid(sampass), uidtoname( getuid() )
- , getuid() );
- } else {
- _log_err( LOG_ERR, "password change failed for user %s"
- , user );
- }
-
- pass_old = pass_new = NULL;
- if (sampass) {
- pdb_free_sam(&sampass);
- sampass = NULL;
- }
-
- } else { /* something has broken with the library */
-
- _log_err( LOG_ALERT, "password received unknown request" );
- retval = PAM_ABORT;
-
- }
-
- if (sampass) {
- pdb_free_sam(&sampass);
- sampass = NULL;
- }
-
- pdb_free_sam(&sampass);
- return retval;
-}
-
-/* static module data */
-#ifdef PAM_STATIC
-struct pam_module _pam_smbpass_passwd_modstruct = {
- "pam_smbpass",
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- pam_sm_chauthtok
-};
-#endif
-