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-rw-r--r--source3/passdb/pampass.c892
-rw-r--r--source3/passdb/pass_check.c776
2 files changed, 0 insertions, 1668 deletions
diff --git a/source3/passdb/pampass.c b/source3/passdb/pampass.c
deleted file mode 100644
index 018eae3a07..0000000000
--- a/source3/passdb/pampass.c
+++ /dev/null
@@ -1,892 +0,0 @@
-/*
- Unix SMB/Netbios implementation.
- Version 2.2.
- PAM Password checking
- Copyright (C) Andrew Tridgell 1992-2001
- Copyright (C) John H Terpsta 1999-2001
- Copyright (C) Andrew Bartlett 2001
- Copyright (C) Jeremy Allison 2001
-
- 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.
-*/
-
-/*
- * This module provides PAM based functions for validation of
- * username/password pairs, account managment, session and access control.
- * Note: SMB password checking is done in smbpass.c
- */
-
-#include "includes.h"
-
-#ifdef WITH_PAM
-
-/*******************************************************************
- * Handle PAM authentication
- * - Access, Authentication, Session, Password
- * Note: See PAM Documentation and refer to local system PAM implementation
- * which determines what actions/limitations/allowances become affected.
- *********************************************************************/
-
-#include <security/pam_appl.h>
-
-/*
- * Structure used to communicate between the conversation function
- * and the server_login/change password functions.
- */
-
-struct smb_pam_userdata {
- const char *PAM_username;
- const char *PAM_password;
- const char *PAM_newpassword;
-};
-
-typedef int (*smb_pam_conv_fn)(int, const struct pam_message **, struct pam_response **, void *appdata_ptr);
-
-/*
- * Macros to help make life easy
- */
-#define COPY_STRING(s) (s) ? strdup(s) : NULL
-
-/*******************************************************************
- PAM error handler.
- *********************************************************************/
-
-static BOOL smb_pam_error_handler(pam_handle_t *pamh, int pam_error, char *msg, int dbglvl)
-{
-
- if( pam_error != PAM_SUCCESS) {
- DEBUG(dbglvl, ("smb_pam_error_handler: PAM: %s : %s\n",
- msg, pam_strerror(pamh, pam_error)));
-
- return False;
- }
- return True;
-}
-
-/*******************************************************************
- This function is a sanity check, to make sure that we NEVER report
- failure as sucess.
-*********************************************************************/
-
-static BOOL smb_pam_nt_status_error_handler(pam_handle_t *pamh, int pam_error,
- char *msg, int dbglvl,
- NTSTATUS *nt_status)
-{
- if (smb_pam_error_handler(pamh, pam_error, msg, dbglvl))
- return True;
-
- if (NT_STATUS_IS_OK(*nt_status)) {
- /* Complain LOUDLY */
- DEBUG(0, ("smb_pam_nt_status_error_handler: PAM: BUG: PAM and NT_STATUS \
-error MISMATCH, forcing to NT_STATUS_LOGON_FAILURE"));
- *nt_status = NT_STATUS_LOGON_FAILURE;
- }
- return False;
-}
-
-/*
- * PAM conversation function
- * Here we assume (for now, at least) that echo on means login name, and
- * echo off means password.
- */
-
-static int smb_pam_conv(int num_msg,
- const struct pam_message **msg,
- struct pam_response **resp,
- void *appdata_ptr)
-{
- int replies = 0;
- struct pam_response *reply = NULL;
- struct smb_pam_userdata *udp = (struct smb_pam_userdata *)appdata_ptr;
-
- *resp = NULL;
-
- if (num_msg <= 0)
- return PAM_CONV_ERR;
-
- /*
- * Apparantly HPUX has a buggy PAM that doesn't support the
- * appdata_ptr. Fail if this is the case. JRA.
- */
-
- if (udp == NULL) {
- DEBUG(0,("smb_pam_conv: PAM on this system is broken - appdata_ptr == NULL !\n"));
- return PAM_CONV_ERR;
- }
-
- reply = malloc(sizeof(struct pam_response) * num_msg);
- if (!reply)
- return PAM_CONV_ERR;
-
- memset(reply, '\0', sizeof(struct pam_response) * num_msg);
-
- for (replies = 0; replies < num_msg; replies++) {
- switch (msg[replies]->msg_style) {
- case PAM_PROMPT_ECHO_ON:
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = COPY_STRING(udp->PAM_username);
- /* PAM frees resp */
- break;
-
- case PAM_PROMPT_ECHO_OFF:
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = COPY_STRING(udp->PAM_password);
- /* PAM frees resp */
- break;
-
- case PAM_TEXT_INFO:
- /* fall through */
-
- case PAM_ERROR_MSG:
- /* ignore it... */
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = NULL;
- break;
-
- default:
- /* Must be an error of some sort... */
- SAFE_FREE(reply);
- return PAM_CONV_ERR;
- }
- }
- if (reply)
- *resp = reply;
- return PAM_SUCCESS;
-}
-
-/*
- * PAM password change conversation function
- * Here we assume (for now, at least) that echo on means login name, and
- * echo off means password.
- */
-
-static void special_char_sub(char *buf)
-{
- all_string_sub(buf, "\\n", "", 0);
- all_string_sub(buf, "\\r", "", 0);
- all_string_sub(buf, "\\s", " ", 0);
- all_string_sub(buf, "\\t", "\t", 0);
-}
-
-static void pwd_sub(char *buf, const char *username, const char *oldpass, const char *newpass)
-{
- pstring_sub(buf, "%u", username);
- all_string_sub(buf, "%o", oldpass, sizeof(fstring));
- all_string_sub(buf, "%n", newpass, sizeof(fstring));
-}
-
-
-struct chat_struct {
- struct chat_struct *next, *prev;
- fstring prompt;
- fstring reply;
-};
-
-/**************************************************************
- Create a linked list containing chat data.
-***************************************************************/
-
-static struct chat_struct *make_pw_chat(char *p)
-{
- fstring prompt;
- fstring reply;
- struct chat_struct *list = NULL;
- struct chat_struct *t;
- struct chat_struct *tmp;
-
- while (1) {
- t = (struct chat_struct *)malloc(sizeof(*t));
- if (!t) {
- DEBUG(0,("make_pw_chat: malloc failed!\n"));
- return NULL;
- }
-
- ZERO_STRUCTP(t);
-
- DLIST_ADD_END(list, t, tmp);
-
- if (!next_token(&p, prompt, NULL, sizeof(fstring)))
- break;
-
- if (strequal(prompt,"."))
- fstrcpy(prompt,"*");
-
- special_char_sub(prompt);
- fstrcpy(t->prompt, prompt);
- strlower(t->prompt);
- trim_string(t->prompt, " ", " ");
-
- if (!next_token(&p, reply, NULL, sizeof(fstring)))
- break;
-
- if (strequal(reply,"."))
- fstrcpy(reply,"");
-
- special_char_sub(reply);
- fstrcpy(t->reply, reply);
- strlower(t->reply);
- trim_string(t->reply, " ", " ");
-
- }
- return list;
-}
-
-static void free_pw_chat(struct chat_struct *list)
-{
- while (list) {
- struct chat_struct *old_head = list;
- DLIST_REMOVE(list, list);
- SAFE_FREE(old_head);
- }
-}
-
-static int smb_pam_passchange_conv(int num_msg,
- const struct pam_message **msg,
- struct pam_response **resp,
- void *appdata_ptr)
-{
- int replies = 0;
- struct pam_response *reply = NULL;
- fstring current_prompt;
- fstring current_reply;
- struct smb_pam_userdata *udp = (struct smb_pam_userdata *)appdata_ptr;
- struct chat_struct *pw_chat= make_pw_chat(lp_passwd_chat());
- struct chat_struct *t;
- BOOL found;
- *resp = NULL;
-
- DEBUG(10,("smb_pam_passchange_conv: starting converstation for %d messages\n", num_msg));
-
- if (num_msg <= 0)
- return PAM_CONV_ERR;
-
- if (pw_chat == NULL)
- return PAM_CONV_ERR;
-
- /*
- * Apparantly HPUX has a buggy PAM that doesn't support the
- * appdata_ptr. Fail if this is the case. JRA.
- */
-
- if (udp == NULL) {
- DEBUG(0,("smb_pam_passchange_conv: PAM on this system is broken - appdata_ptr == NULL !\n"));
- free_pw_chat(pw_chat);
- return PAM_CONV_ERR;
- }
-
- reply = malloc(sizeof(struct pam_response) * num_msg);
- if (!reply) {
- DEBUG(0,("smb_pam_passchange_conv: malloc for reply failed!\n"));
- free_pw_chat(pw_chat);
- return PAM_CONV_ERR;
- }
-
- for (replies = 0; replies < num_msg; replies++) {
- found = False;
- DEBUG(10,("smb_pam_passchange_conv: Processing message %d\n", replies));
- switch (msg[replies]->msg_style) {
- case PAM_PROMPT_ECHO_ON:
- DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_ON: PAM said: %s\n", msg[replies]->msg));
- fstrcpy(current_prompt, msg[replies]->msg);
- trim_string(current_prompt, " ", " ");
- for (t=pw_chat; t; t=t->next) {
-
- DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_ON: trying to match |%s| to |%s|\n",
- t->prompt, current_prompt ));
-
- if (unix_wild_match(t->prompt, current_prompt) == 0) {
- fstrcpy(current_reply, t->reply);
- DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_ON: We sent: %s\n", current_reply));
- pwd_sub(current_reply, udp->PAM_username, udp->PAM_password, udp->PAM_newpassword);
-#ifdef DEBUG_PASSWORD
- DEBUG(100,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_ON: We actualy sent: %s\n", current_reply));
-#endif
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = COPY_STRING(current_reply);
- found = True;
- break;
- }
- }
- /* PAM frees resp */
- if (!found) {
- DEBUG(3,("smb_pam_passchange_conv: Could not find reply for PAM prompt: %s\n",msg[replies]->msg));
- free_pw_chat(pw_chat);
- SAFE_FREE(reply);
- return PAM_CONV_ERR;
- }
- break;
-
- case PAM_PROMPT_ECHO_OFF:
- DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_OFF: PAM said: %s\n", msg[replies]->msg));
- fstrcpy(current_prompt, msg[replies]->msg);
- trim_string(current_prompt, " ", " ");
- for (t=pw_chat; t; t=t->next) {
-
- DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_OFF: trying to match |%s| to |%s|\n",
- t->prompt, current_prompt ));
-
- if (unix_wild_match(t->prompt, current_prompt) == 0) {
- fstrcpy(current_reply, t->reply);
- DEBUG(10,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_OFF: We sent: %s\n", current_reply));
- pwd_sub(current_reply, udp->PAM_username, udp->PAM_password, udp->PAM_newpassword);
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = COPY_STRING(current_reply);
-#ifdef DEBUG_PASSWORD
- DEBUG(100,("smb_pam_passchange_conv: PAM_PROMPT_ECHO_OFF: We actualy sent: %s\n", current_reply));
-#endif
- found = True;
- break;
- }
- }
- /* PAM frees resp */
-
- if (!found) {
- DEBUG(3,("smb_pam_passchange_conv: Could not find reply for PAM prompt: %s\n",msg[replies]->msg));
- free_pw_chat(pw_chat);
- SAFE_FREE(reply);
- return PAM_CONV_ERR;
- }
- break;
-
- case PAM_TEXT_INFO:
- /* fall through */
-
- case PAM_ERROR_MSG:
- /* ignore it... */
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = NULL;
- break;
-
- default:
- /* Must be an error of some sort... */
- free_pw_chat(pw_chat);
- SAFE_FREE(reply);
- return PAM_CONV_ERR;
- }
- }
-
- free_pw_chat(pw_chat);
- if (reply)
- *resp = reply;
- return PAM_SUCCESS;
-}
-
-/***************************************************************************
- Free up a malloced pam_conv struct.
-****************************************************************************/
-
-static void smb_free_pam_conv(struct pam_conv *pconv)
-{
- if (pconv)
- SAFE_FREE(pconv->appdata_ptr);
-
- SAFE_FREE(pconv);
-}
-
-/***************************************************************************
- Allocate a pam_conv struct.
-****************************************************************************/
-
-static struct pam_conv *smb_setup_pam_conv(smb_pam_conv_fn smb_pam_conv_fnptr, const char *user,
- const char *passwd, const char *newpass)
-{
- struct pam_conv *pconv = (struct pam_conv *)malloc(sizeof(struct pam_conv));
- struct smb_pam_userdata *udp = (struct smb_pam_userdata *)malloc(sizeof(struct smb_pam_userdata));
-
- if (pconv == NULL || udp == NULL) {
- SAFE_FREE(pconv);
- SAFE_FREE(udp);
- return NULL;
- }
-
- udp->PAM_username = user;
- udp->PAM_password = passwd;
- udp->PAM_newpassword = newpass;
-
- pconv->conv = smb_pam_conv_fnptr;
- pconv->appdata_ptr = (void *)udp;
- return pconv;
-}
-
-/*
- * PAM Closing out cleanup handler
- */
-
-static BOOL smb_pam_end(pam_handle_t *pamh, struct pam_conv *smb_pam_conv_ptr)
-{
- int pam_error;
-
- smb_free_pam_conv(smb_pam_conv_ptr);
-
- if( pamh != NULL ) {
- pam_error = pam_end(pamh, 0);
- if(smb_pam_error_handler(pamh, pam_error, "End Cleanup Failed", 2) == True) {
- DEBUG(4, ("smb_pam_end: PAM: PAM_END OK.\n"));
- return True;
- }
- }
- DEBUG(2,("smb_pam_end: PAM: not initialised"));
- return False;
-}
-
-/*
- * Start PAM authentication for specified account
- */
-
-static BOOL smb_pam_start(pam_handle_t **pamh, const char *user, const char *rhost, struct pam_conv *pconv)
-{
- int pam_error;
- const char *our_rhost;
-
- *pamh = (pam_handle_t *)NULL;
-
- DEBUG(4,("smb_pam_start: PAM: Init user: %s\n", user));
-
- pam_error = pam_start("samba", user, pconv, pamh);
- if( !smb_pam_error_handler(*pamh, pam_error, "Init Failed", 0)) {
- *pamh = (pam_handle_t *)NULL;
- return False;
- }
-
- if (rhost == NULL) {
- our_rhost = client_name();
- if (strequal(rhost,"UNKNOWN"))
- our_rhost = client_addr();
- } else {
- our_rhost = rhost;
- }
-
-#ifdef PAM_RHOST
- DEBUG(4,("smb_pam_start: PAM: setting rhost to: %s\n", our_rhost));
- pam_error = pam_set_item(*pamh, PAM_RHOST, our_rhost);
- if(!smb_pam_error_handler(*pamh, pam_error, "set rhost failed", 0)) {
- smb_pam_end(*pamh, pconv);
- *pamh = (pam_handle_t *)NULL;
- return False;
- }
-#endif
-#ifdef PAM_TTY
- DEBUG(4,("smb_pam_start: PAM: setting tty\n"));
- pam_error = pam_set_item(*pamh, PAM_TTY, "samba");
- if (!smb_pam_error_handler(*pamh, pam_error, "set tty failed", 0)) {
- smb_pam_end(*pamh, pconv);
- *pamh = (pam_handle_t *)NULL;
- return False;
- }
-#endif
- DEBUG(4,("smb_pam_start: PAM: Init passed for user: %s\n", user));
- return True;
-}
-
-/*
- * PAM Authentication Handler
- */
-static NTSTATUS smb_pam_auth(pam_handle_t *pamh, char *user)
-{
- int pam_error;
- NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
-
- /*
- * To enable debugging set in /etc/pam.d/samba:
- * auth required /lib/security/pam_pwdb.so nullok shadow audit
- */
-
- DEBUG(4,("smb_pam_auth: PAM: Authenticate User: %s\n", user));
- pam_error = pam_authenticate(pamh, PAM_SILENT | lp_null_passwords() ? 0 : PAM_DISALLOW_NULL_AUTHTOK);
- switch( pam_error ){
- case PAM_AUTH_ERR:
- DEBUG(2, ("smb_pam_auth: PAM: Athentication Error for user %s\n", user));
- nt_status = NT_STATUS_WRONG_PASSWORD;
- break;
- case PAM_CRED_INSUFFICIENT:
- DEBUG(2, ("smb_pam_auth: PAM: Insufficient Credentials for user %s\n", user));
- nt_status = NT_STATUS_INSUFFICIENT_LOGON_INFO;
- break;
- case PAM_AUTHINFO_UNAVAIL:
- DEBUG(2, ("smb_pam_auth: PAM: Authentication Information Unavailable for user %s\n", user));
- nt_status = NT_STATUS_LOGON_FAILURE;
- break;
- case PAM_USER_UNKNOWN:
- DEBUG(2, ("smb_pam_auth: PAM: Username %s NOT known to Authentication system\n", user));
- nt_status = NT_STATUS_NO_SUCH_USER;
- break;
- case PAM_MAXTRIES:
- DEBUG(2, ("smb_pam_auth: PAM: One or more authentication modules reports user limit for user %s exceeeded\n", user));
- nt_status = NT_STATUS_REMOTE_SESSION_LIMIT;
- break;
- case PAM_ABORT:
- DEBUG(0, ("smb_pam_auth: PAM: One or more PAM modules failed to load for user %s\n", user));
- nt_status = NT_STATUS_LOGON_FAILURE;
- break;
- case PAM_SUCCESS:
- DEBUG(4, ("smb_pam_auth: PAM: User %s Authenticated OK\n", user));
- nt_status = NT_STATUS_OK;
- break;
- default:
- DEBUG(0, ("smb_pam_auth: PAM: UNKNOWN ERROR while authenticating user %s\n", user));
- nt_status = NT_STATUS_LOGON_FAILURE;
- break;
- }
-
- smb_pam_nt_status_error_handler(pamh, pam_error, "Authentication Failure", 2, &nt_status);
- return nt_status;
-}
-
-/*
- * PAM Account Handler
- */
-static NTSTATUS smb_pam_account(pam_handle_t *pamh, const char * user)
-{
- int pam_error;
- NTSTATUS nt_status = NT_STATUS_ACCOUNT_DISABLED;
-
- DEBUG(4,("smb_pam_account: PAM: Account Management for User: %s\n", user));
- pam_error = pam_acct_mgmt(pamh, PAM_SILENT); /* Is user account enabled? */
- switch( pam_error ) {
- case PAM_AUTHTOK_EXPIRED:
- DEBUG(2, ("smb_pam_account: PAM: User %s is valid but password is expired\n", user));
- nt_status = NT_STATUS_PASSWORD_EXPIRED;
- break;
- case PAM_ACCT_EXPIRED:
- DEBUG(2, ("smb_pam_account: PAM: User %s no longer permitted to access system\n", user));
- nt_status = NT_STATUS_ACCOUNT_EXPIRED;
- break;
- case PAM_AUTH_ERR:
- DEBUG(2, ("smb_pam_account: PAM: There was an authentication error for user %s\n", user));
- nt_status = NT_STATUS_LOGON_FAILURE;
- break;
- case PAM_PERM_DENIED:
- DEBUG(0, ("smb_pam_account: PAM: User %s is NOT permitted to access system at this time\n", user));
- nt_status = NT_STATUS_ACCOUNT_RESTRICTION;
- break;
- case PAM_USER_UNKNOWN:
- DEBUG(0, ("smb_pam_account: PAM: User \"%s\" is NOT known to account management\n", user));
- nt_status = NT_STATUS_NO_SUCH_USER;
- break;
- case PAM_SUCCESS:
- DEBUG(4, ("smb_pam_account: PAM: Account OK for User: %s\n", user));
- nt_status = NT_STATUS_OK;
- break;
- default:
- nt_status = NT_STATUS_ACCOUNT_DISABLED;
- DEBUG(0, ("smb_pam_account: PAM: UNKNOWN PAM ERROR (%d) during Account Management for User: %s\n", pam_error, user));
- break;
- }
-
- smb_pam_nt_status_error_handler(pamh, pam_error, "Account Check Failed", 2, &nt_status);
- return nt_status;
-}
-
-/*
- * PAM Credential Setting
- */
-
-static NTSTATUS smb_pam_setcred(pam_handle_t *pamh, char * user)
-{
- int pam_error;
- NTSTATUS nt_status = NT_STATUS_NO_TOKEN;
-
- /*
- * This will allow samba to aquire a kerberos token. And, when
- * exporting an AFS cell, be able to /write/ to this cell.
- */
-
- DEBUG(4,("PAM: Account Management SetCredentials for User: %s\n", user));
- pam_error = pam_setcred(pamh, (PAM_ESTABLISH_CRED|PAM_SILENT));
- switch( pam_error ) {
- case PAM_CRED_UNAVAIL:
- DEBUG(0, ("smb_pam_setcred: PAM: Credentials not found for user:%s\n", user ));
- nt_status = NT_STATUS_NO_TOKEN;
- break;
- case PAM_CRED_EXPIRED:
- DEBUG(0, ("smb_pam_setcred: PAM: Credentials for user: \"%s\" EXPIRED!\n", user ));
- nt_status = NT_STATUS_PASSWORD_EXPIRED;
- break;
- case PAM_USER_UNKNOWN:
- DEBUG(0, ("smb_pam_setcred: PAM: User: \"%s\" is NOT known so can not set credentials!\n", user ));
- nt_status = NT_STATUS_NO_SUCH_USER;
- break;
- case PAM_CRED_ERR:
- DEBUG(0, ("smb_pam_setcred: PAM: Unknown setcredentials error - unable to set credentials for %s\n", user ));
- nt_status = NT_STATUS_LOGON_FAILURE;
- break;
- case PAM_SUCCESS:
- DEBUG(4, ("smb_pam_setcred: PAM: SetCredentials OK for User: %s\n", user));
- nt_status = NT_STATUS_OK;
- break;
- default:
- DEBUG(0, ("smb_pam_setcred: PAM: UNKNOWN PAM ERROR (%d) during SetCredentials for User: %s\n", pam_error, user));
- nt_status = NT_STATUS_NO_TOKEN;
- break;
- }
-
- smb_pam_nt_status_error_handler(pamh, pam_error, "Set Credential Failure", 2, &nt_status);
- return nt_status;
-}
-
-/*
- * PAM Internal Session Handler
- */
-static BOOL smb_internal_pam_session(pam_handle_t *pamh, char *user, char *tty, BOOL flag)
-{
- int pam_error;
-
-#ifdef PAM_TTY
- DEBUG(4,("smb_internal_pam_session: PAM: tty set to: %s\n", tty));
- pam_error = pam_set_item(pamh, PAM_TTY, tty);
- if (!smb_pam_error_handler(pamh, pam_error, "set tty failed", 0))
- return False;
-#endif
-
- if (flag) {
- pam_error = pam_open_session(pamh, PAM_SILENT);
- if (!smb_pam_error_handler(pamh, pam_error, "session setup failed", 0))
- return False;
- } else {
- pam_setcred(pamh, (PAM_DELETE_CRED|PAM_SILENT)); /* We don't care if this fails */
- pam_error = pam_close_session(pamh, PAM_SILENT); /* This will probably pick up the error anyway */
- if (!smb_pam_error_handler(pamh, pam_error, "session close failed", 0))
- return False;
- }
- return (True);
-}
-
-/*
- * Internal PAM Password Changer.
- */
-
-static BOOL smb_pam_chauthtok(pam_handle_t *pamh, const char * user)
-{
- int pam_error;
-
- DEBUG(4,("smb_pam_chauthtok: PAM: Password Change for User: %s\n", user));
-
- pam_error = pam_chauthtok(pamh, PAM_SILENT); /* Change Password */
-
- switch( pam_error ) {
- case PAM_AUTHTOK_ERR:
- DEBUG(2, ("PAM: unable to obtain the new authentication token - is password to weak?\n"));
- break;
-
- /* This doesn't seem to be defined on Solaris. JRA */
-#ifdef PAM_AUTHTOK_RECOVER_ERR
- case PAM_AUTHTOK_RECOVER_ERR:
- DEBUG(2, ("PAM: unable to obtain the old authentication token - was the old password wrong?.\n"));
- break;
-#endif
-
- case PAM_AUTHTOK_LOCK_BUSY:
- DEBUG(2, ("PAM: unable to change the authentication token since it is currently locked.\n"));
- break;
- case PAM_AUTHTOK_DISABLE_AGING:
- DEBUG(2, ("PAM: Authentication token aging has been disabled.\n"));
- break;
- case PAM_PERM_DENIED:
- DEBUG(0, ("PAM: Permission denied.\n"));
- break;
- case PAM_TRY_AGAIN:
- DEBUG(0, ("PAM: Could not update all authentication token(s). No authentication tokens were updated.\n"));
- break;
- case PAM_USER_UNKNOWN:
- DEBUG(0, ("PAM: User not known to PAM\n"));
- break;
- case PAM_SUCCESS:
- DEBUG(4, ("PAM: Account OK for User: %s\n", user));
- break;
- default:
- DEBUG(0, ("PAM: UNKNOWN PAM ERROR (%d) for User: %s\n", pam_error, user));
- }
-
- if(!smb_pam_error_handler(pamh, pam_error, "Password Change Failed", 2)) {
- return False;
- }
-
- /* If this point is reached, the password has changed. */
- return True;
-}
-
-/*
- * PAM Externally accessible Session handler
- */
-
-BOOL smb_pam_claim_session(char *user, char *tty, char *rhost)
-{
- pam_handle_t *pamh = NULL;
- struct pam_conv *pconv = NULL;
-
- /* Ignore PAM if told to. */
-
- if (!lp_obey_pam_restrictions())
- return True;
-
- if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, NULL, NULL)) == NULL)
- return False;
-
- if (!smb_pam_start(&pamh, user, rhost, pconv))
- return False;
-
- if (!smb_internal_pam_session(pamh, user, tty, True)) {
- smb_pam_end(pamh, pconv);
- return False;
- }
-
- return smb_pam_end(pamh, pconv);
-}
-
-/*
- * PAM Externally accessible Session handler
- */
-
-BOOL smb_pam_close_session(char *user, char *tty, char *rhost)
-{
- pam_handle_t *pamh = NULL;
- struct pam_conv *pconv = NULL;
-
- /* Ignore PAM if told to. */
-
- if (!lp_obey_pam_restrictions())
- return True;
-
- if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, NULL, NULL)) == NULL)
- return False;
-
- if (!smb_pam_start(&pamh, user, rhost, pconv))
- return False;
-
- if (!smb_internal_pam_session(pamh, user, tty, False)) {
- smb_pam_end(pamh, pconv);
- return False;
- }
-
- return smb_pam_end(pamh, pconv);
-}
-
-/*
- * PAM Externally accessible Account handler
- */
-
-NTSTATUS smb_pam_accountcheck(const char * user)
-{
- NTSTATUS nt_status = NT_STATUS_ACCOUNT_DISABLED;
- pam_handle_t *pamh = NULL;
- struct pam_conv *pconv = NULL;
-
- /* Ignore PAM if told to. */
-
- if (!lp_obey_pam_restrictions())
- return NT_STATUS_OK;
-
- if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, NULL, NULL)) == NULL)
- return NT_STATUS_NO_MEMORY;
-
- if (!smb_pam_start(&pamh, user, NULL, pconv))
- return NT_STATUS_ACCOUNT_DISABLED;
-
- if (!NT_STATUS_IS_OK(nt_status = smb_pam_account(pamh, user)))
- DEBUG(0, ("smb_pam_accountcheck: PAM: Account Validation Failed - Rejecting User %s!\n", user));
-
- smb_pam_end(pamh, pconv);
- return nt_status;
-}
-
-/*
- * PAM Password Validation Suite
- */
-
-NTSTATUS smb_pam_passcheck(char * user, char * password)
-{
- pam_handle_t *pamh = NULL;
- NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
- struct pam_conv *pconv = NULL;
-
- /*
- * Note we can't ignore PAM here as this is the only
- * way of doing auths on plaintext passwords when
- * compiled --with-pam.
- */
-
- if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, password, NULL)) == NULL)
- return NT_STATUS_LOGON_FAILURE;
-
- if (!smb_pam_start(&pamh, user, NULL, pconv))
- return NT_STATUS_LOGON_FAILURE;
-
- if (!NT_STATUS_IS_OK(nt_status = smb_pam_auth(pamh, user))) {
- DEBUG(0, ("smb_pam_passcheck: PAM: smb_pam_auth failed - Rejecting User %s !\n", user));
- smb_pam_end(pamh, pconv);
- return nt_status;
- }
-
- if (!NT_STATUS_IS_OK(nt_status = smb_pam_account(pamh, user))) {
- DEBUG(0, ("smb_pam_passcheck: PAM: smb_pam_account failed - Rejecting User %s !\n", user));
- smb_pam_end(pamh, pconv);
- return nt_status;
- }
-
- if (!NT_STATUS_IS_OK(nt_status = smb_pam_setcred(pamh, user))) {
- DEBUG(0, ("smb_pam_passcheck: PAM: smb_pam_setcred failed - Rejecting User %s !\n", user));
- smb_pam_end(pamh, pconv);
- return nt_status;
- }
-
- smb_pam_end(pamh, pconv);
- return nt_status;
-}
-
-/*
- * PAM Password Change Suite
- */
-
-BOOL smb_pam_passchange(const char * user, const char * oldpassword, const char * newpassword)
-{
- /* Appropriate quantities of root should be obtained BEFORE calling this function */
- struct pam_conv *pconv = NULL;
- pam_handle_t *pamh = NULL;
-
- if ((pconv = smb_setup_pam_conv(smb_pam_passchange_conv, user, oldpassword, newpassword)) == NULL)
- return False;
-
- if(!smb_pam_start(&pamh, user, NULL, pconv))
- return False;
-
- if (!smb_pam_chauthtok(pamh, user)) {
- DEBUG(0, ("smb_pam_passchange: PAM: Password Change Failed for user %s!\n", user));
- smb_pam_end(pamh, pconv);
- return False;
- }
-
- return smb_pam_end(pamh, pconv);
-}
-
-#else
-
-/* If PAM not used, no PAM restrictions on accounts. */
-NTSTATUS smb_pam_accountcheck(const char * user)
-{
- return NT_STATUS_OK;
-}
-
-/* If PAM not used, also no PAM restrictions on sessions. */
-BOOL smb_pam_claim_session(char *user, char *tty, char *rhost)
-{
- return True;
-}
-
-/* If PAM not used, also no PAM restrictions on sessions. */
-BOOL smb_pam_close_session(char *in_user, char *tty, char *rhost)
-{
- return True;
-}
-#endif /* WITH_PAM */
diff --git a/source3/passdb/pass_check.c b/source3/passdb/pass_check.c
deleted file mode 100644
index 77839e4bb0..0000000000
--- a/source3/passdb/pass_check.c
+++ /dev/null
@@ -1,776 +0,0 @@
-/*
- Unix SMB/Netbios implementation.
- Version 1.9.
- Password checking
- Copyright (C) Andrew Tridgell 1992-1998
-
- 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.
-*/
-
-/* this module is for checking a username/password against a system
- password database. The SMB encrypted password support is elsewhere */
-
-#include "includes.h"
-
-/* these are kept here to keep the string_combinations function simple */
-static fstring this_user;
-#if !defined(WITH_PAM)
-static fstring this_salt;
-static fstring this_crypted;
-#endif
-
-#ifdef WITH_AFS
-
-#include <afs/stds.h>
-#include <afs/kautils.h>
-
-/*******************************************************************
-check on AFS authentication
-********************************************************************/
-static BOOL afs_auth(char *user, char *password)
-{
- long password_expires = 0;
- char *reason;
-
- /* For versions of AFS prior to 3.3, this routine has few arguments, */
- /* but since I can't find the old documentation... :-) */
- setpag();
- if (ka_UserAuthenticateGeneral
- (KA_USERAUTH_VERSION + KA_USERAUTH_DOSETPAG, user, (char *)0, /* instance */
- (char *)0, /* cell */
- password, 0, /* lifetime, default */
- &password_expires, /*days 'til it expires */
- 0, /* spare 2 */
- &reason) == 0)
- {
- return (True);
- }
- DEBUG(1,
- ("AFS authentication for \"%s\" failed (%s)\n", user, reason));
- return (False);
-}
-#endif
-
-
-#ifdef WITH_DFS
-
-#include <dce/dce_error.h>
-#include <dce/sec_login.h>
-
-/*****************************************************************
- This new version of the DFS_AUTH code was donated by Karsten Muuss
- <muuss@or.uni-bonn.de>. It fixes the following problems with the
- old code :
-
- - Server credentials may expire
- - Client credential cache files have wrong owner
- - purge_context() function is called with invalid argument
-
- This new code was modified to ensure that on exit the uid/gid is
- still root, and the original directory is restored. JRA.
-******************************************************************/
-
-sec_login_handle_t my_dce_sec_context;
-int dcelogin_atmost_once = 0;
-
-/*******************************************************************
-check on a DCE/DFS authentication
-********************************************************************/
-static BOOL dfs_auth(char *user, char *password)
-{
- error_status_t err;
- int err2;
- int prterr;
- signed32 expire_time, current_time;
- boolean32 password_reset;
- struct passwd *pw;
- sec_passwd_rec_t passwd_rec;
- sec_login_auth_src_t auth_src = sec_login_auth_src_network;
- unsigned char dce_errstr[dce_c_error_string_len];
- gid_t egid;
-
- if (dcelogin_atmost_once)
- return (False);
-
-#ifdef HAVE_CRYPT
- /*
- * We only go for a DCE login context if the given password
- * matches that stored in the local password file..
- * Assumes local passwd file is kept in sync w/ DCE RGY!
- */
-
- if (strcmp((char *)crypt(password, this_salt), this_crypted))
- {
- return (False);
- }
-#endif
-
- sec_login_get_current_context(&my_dce_sec_context, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get current context. %s\n", dce_errstr));
-
- return (False);
- }
-
- sec_login_certify_identity(my_dce_sec_context, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get current context. %s\n", dce_errstr));
-
- return (False);
- }
-
- sec_login_get_expiration(my_dce_sec_context, &expire_time, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get expiration. %s\n", dce_errstr));
-
- return (False);
- }
-
- time(&current_time);
-
- if (expire_time < (current_time + 60))
- {
- struct passwd *pw;
- sec_passwd_rec_t *key;
-
- sec_login_get_pwent(my_dce_sec_context,
- (sec_login_passwd_t *) & pw, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get pwent. %s\n", dce_errstr));
-
- return (False);
- }
-
- sec_login_refresh_identity(my_dce_sec_context, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't refresh identity. %s\n",
- dce_errstr));
-
- return (False);
- }
-
- sec_key_mgmt_get_key(rpc_c_authn_dce_secret, NULL,
- (unsigned char *)pw->pw_name,
- sec_c_key_version_none,
- (void **)&key, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get key for %s. %s\n",
- pw->pw_name, dce_errstr));
-
- return (False);
- }
-
- sec_login_valid_and_cert_ident(my_dce_sec_context, key,
- &password_reset, &auth_src,
- &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,
- ("DCE can't validate and certify identity for %s. %s\n",
- pw->pw_name, dce_errstr));
- }
-
- sec_key_mgmt_free_key(key, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't free key.\n", dce_errstr));
- }
- }
-
- if (sec_login_setup_identity((unsigned char *)user,
- sec_login_no_flags,
- &my_dce_sec_context, &err) == 0)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE Setup Identity for %s failed: %s\n",
- user, dce_errstr));
- return (False);
- }
-
- sec_login_get_pwent(my_dce_sec_context,
- (sec_login_passwd_t *) & pw, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get pwent. %s\n", dce_errstr));
-
- return (False);
- }
-
- sec_login_purge_context(&my_dce_sec_context, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't purge context. %s\n", dce_errstr));
-
- return (False);
- }
-
- /*
- * NB. I'd like to change these to call something like change_to_user()
- * instead but currently we don't have a connection
- * context to become the correct user. This is already
- * fairly platform specific code however, so I think
- * this should be ok. I have added code to go
- * back to being root on error though. JRA.
- */
-
- egid = getegid();
-
- set_effective_gid(pw->pw_gid);
- set_effective_uid(pw->pw_uid);
-
- if (sec_login_setup_identity((unsigned char *)user,
- sec_login_no_flags,
- &my_dce_sec_context, &err) == 0)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE Setup Identity for %s failed: %s\n",
- user, dce_errstr));
- goto err;
- }
-
- sec_login_get_pwent(my_dce_sec_context,
- (sec_login_passwd_t *) & pw, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get pwent. %s\n", dce_errstr));
- goto err;
- }
-
- passwd_rec.version_number = sec_passwd_c_version_none;
- passwd_rec.pepper = NULL;
- passwd_rec.key.key_type = sec_passwd_plain;
- passwd_rec.key.tagged_union.plain = (idl_char *) password;
-
- sec_login_validate_identity(my_dce_sec_context,
- &passwd_rec, &password_reset,
- &auth_src, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,
- ("DCE Identity Validation failed for principal %s: %s\n",
- user, dce_errstr));
- goto err;
- }
-
- sec_login_certify_identity(my_dce_sec_context, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE certify identity failed: %s\n", dce_errstr));
- goto err;
- }
-
- if (auth_src != sec_login_auth_src_network)
- {
- DEBUG(0, ("DCE context has no network credentials.\n"));
- }
-
- sec_login_set_context(my_dce_sec_context, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,
- ("DCE login failed for principal %s, cant set context: %s\n",
- user, dce_errstr));
-
- sec_login_purge_context(&my_dce_sec_context, &err);
- goto err;
- }
-
- sec_login_get_pwent(my_dce_sec_context,
- (sec_login_passwd_t *) & pw, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get pwent. %s\n", dce_errstr));
- goto err;
- }
-
- DEBUG(0, ("DCE login succeeded for principal %s on pid %d\n",
- user, sys_getpid()));
-
- DEBUG(3, ("DCE principal: %s\n"
- " uid: %d\n"
- " gid: %d\n",
- pw->pw_name, pw->pw_uid, pw->pw_gid));
- DEBUG(3, (" info: %s\n"
- " dir: %s\n"
- " shell: %s\n",
- pw->pw_gecos, pw->pw_dir, pw->pw_shell));
-
- sec_login_get_expiration(my_dce_sec_context, &expire_time, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0, ("DCE can't get expiration. %s\n", dce_errstr));
- goto err;
- }
-
- set_effective_uid(0);
- set_effective_gid(0);
-
- DEBUG(0,
- ("DCE context expires: %s", asctime(localtime(&expire_time))));
-
- dcelogin_atmost_once = 1;
- return (True);
-
- err:
-
- /* Go back to root, JRA. */
- set_effective_uid(0);
- set_effective_gid(egid);
- return (False);
-}
-
-void dfs_unlogin(void)
-{
- error_status_t err;
- int err2;
- unsigned char dce_errstr[dce_c_error_string_len];
-
- sec_login_purge_context(&my_dce_sec_context, &err);
- if (err != error_status_ok)
- {
- dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,
- ("DCE purge login context failed for server instance %d: %s\n",
- sys_getpid(), dce_errstr));
- }
-}
-#endif
-
-#ifdef LINUX_BIGCRYPT
-/****************************************************************************
-an enhanced crypt for Linux to handle password longer than 8 characters
-****************************************************************************/
-static int linux_bigcrypt(char *password, char *salt1, char *crypted)
-{
-#define LINUX_PASSWORD_SEG_CHARS 8
- char salt[3];
- int i;
-
- StrnCpy(salt, salt1, 2);
- crypted += 2;
-
- for (i = strlen(password); i > 0; i -= LINUX_PASSWORD_SEG_CHARS) {
- char *p = crypt(password, salt) + 2;
- if (strncmp(p, crypted, LINUX_PASSWORD_SEG_CHARS) != 0)
- return (0);
- password += LINUX_PASSWORD_SEG_CHARS;
- crypted += strlen(p);
- }
-
- return (1);
-}
-#endif
-
-#ifdef OSF1_ENH_SEC
-/****************************************************************************
-an enhanced crypt for OSF1
-****************************************************************************/
-static char *osf1_bigcrypt(char *password, char *salt1)
-{
- static char result[AUTH_MAX_PASSWD_LENGTH] = "";
- char *p1;
- char *p2 = password;
- char salt[3];
- int i;
- int parts = strlen(password) / AUTH_CLEARTEXT_SEG_CHARS;
- if (strlen(password) % AUTH_CLEARTEXT_SEG_CHARS)
- parts++;
-
- StrnCpy(salt, salt1, 2);
- StrnCpy(result, salt1, 2);
- result[2] = '\0';
-
- for (i = 0; i < parts; i++) {
- p1 = crypt(p2, salt);
- strncat(result, p1 + 2,
- AUTH_MAX_PASSWD_LENGTH - strlen(p1 + 2) - 1);
- StrnCpy(salt, &result[2 + i * AUTH_CIPHERTEXT_SEG_CHARS], 2);
- p2 += AUTH_CLEARTEXT_SEG_CHARS;
- }
-
- return (result);
-}
-#endif
-
-
-/****************************************************************************
-apply a function to upper/lower case combinations
-of a string and return true if one of them returns true.
-try all combinations with N uppercase letters.
-offset is the first char to try and change (start with 0)
-it assumes the string starts lowercased
-****************************************************************************/
-static NTSTATUS string_combinations2(char *s, int offset, NTSTATUS (*fn) (char *),
- int N)
-{
- int len = strlen(s);
- int i;
- NTSTATUS nt_status;
-
-#ifdef PASSWORD_LENGTH
- len = MIN(len, PASSWORD_LENGTH);
-#endif
-
- if (N <= 0 || offset >= len)
- return (fn(s));
-
- for (i = offset; i < (len - (N - 1)); i++) {
- char c = s[i];
- if (!islower(c))
- continue;
- s[i] = toupper(c);
- if (!NT_STATUS_EQUAL(nt_status = string_combinations2(s, i + 1, fn, N - 1),NT_STATUS_WRONG_PASSWORD)) {
- return (nt_status);
- }
- s[i] = c;
- }
- return (NT_STATUS_WRONG_PASSWORD);
-}
-
-/****************************************************************************
-apply a function to upper/lower case combinations
-of a string and return true if one of them returns true.
-try all combinations with up to N uppercase letters.
-offset is the first char to try and change (start with 0)
-it assumes the string starts lowercased
-****************************************************************************/
-static NTSTATUS string_combinations(char *s, NTSTATUS (*fn) (char *), int N)
-{
- int n;
- NTSTATUS nt_status;
- for (n = 1; n <= N; n++)
- if (!NT_STATUS_EQUAL(nt_status = string_combinations2(s, 0, fn, n), NT_STATUS_WRONG_PASSWORD))
- return nt_status;
- return NT_STATUS_WRONG_PASSWORD;
-}
-
-
-/****************************************************************************
-core of password checking routine
-****************************************************************************/
-static NTSTATUS password_check(char *password)
-{
-#ifdef WITH_PAM
- return smb_pam_passcheck(this_user, password);
-#else
-
- BOOL ret;
-
-#ifdef WITH_AFS
- if (afs_auth(this_user, password))
- return NT_STATUS_OK;
-#endif /* WITH_AFS */
-
-#ifdef WITH_DFS
- if (dfs_auth(this_user, password))
- return NT_STATUS_OK;
-#endif /* WITH_DFS */
-
-#ifdef OSF1_ENH_SEC
-
- ret = (strcmp(osf1_bigcrypt(password, this_salt),
- this_crypted) == 0);
- if (!ret) {
- DEBUG(2,
- ("OSF1_ENH_SEC failed. Trying normal crypt.\n"));
- ret = (strcmp((char *)crypt(password, this_salt), this_crypted) == 0);
- }
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-
-#endif /* OSF1_ENH_SEC */
-
-#ifdef ULTRIX_AUTH
- ret = (strcmp((char *)crypt16(password, this_salt), this_crypted) == 0);
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-
-#endif /* ULTRIX_AUTH */
-
-#ifdef LINUX_BIGCRYPT
- ret = (linux_bigcrypt(password, this_salt, this_crypted));
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-#endif /* LINUX_BIGCRYPT */
-
-#if defined(HAVE_BIGCRYPT) && defined(HAVE_CRYPT) && defined(USE_BOTH_CRYPT_CALLS)
-
- /*
- * Some systems have bigcrypt in the C library but might not
- * actually use it for the password hashes (HPUX 10.20) is
- * a noteable example. So we try bigcrypt first, followed
- * by crypt.
- */
-
- if (strcmp(bigcrypt(password, this_salt), this_crypted) == 0)
- return NT_STATUS_OK;
- else
- ret = (strcmp((char *)crypt(password, this_salt), this_crypted) == 0);
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-#else /* HAVE_BIGCRYPT && HAVE_CRYPT && USE_BOTH_CRYPT_CALLS */
-
-#ifdef HAVE_BIGCRYPT
- ret = (strcmp(bigcrypt(password, this_salt), this_crypted) == 0);
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-#endif /* HAVE_BIGCRYPT */
-
-#ifndef HAVE_CRYPT
- DEBUG(1, ("Warning - no crypt available\n"));
- return NT_STATUS_LOGON_FAILURE;
-#else /* HAVE_CRYPT */
- ret = (strcmp((char *)crypt(password, this_salt), this_crypted) == 0);
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-#endif /* HAVE_CRYPT */
-#endif /* HAVE_BIGCRYPT && HAVE_CRYPT && USE_BOTH_CRYPT_CALLS */
-#endif /* WITH_PAM || KRB4_AUTH || KRB5_AUTH */
-}
-
-
-
-/****************************************************************************
-CHECK if a username/password is OK
-the function pointer fn() points to a function to call when a successful
-match is found and is used to update the encrypted password file
-return NT_STATUS_OK on correct match, appropriate error otherwise
-****************************************************************************/
-
-NTSTATUS pass_check(struct passwd *pass, char *user, char *password,
- int pwlen, BOOL (*fn) (char *, char *), BOOL run_cracker)
-{
- pstring pass2;
- int level = lp_passwordlevel();
-
- NTSTATUS nt_status;
- if (password)
- password[pwlen] = 0;
-
-#if DEBUG_PASSWORD
- DEBUG(100, ("checking user=[%s] pass=[%s]\n", user, password));
-#endif
-
- if (!password)
- return NT_STATUS_LOGON_FAILURE;
-
- if (((!*password) || (!pwlen)) && !lp_null_passwords())
- return NT_STATUS_LOGON_FAILURE;
-
-#if defined(WITH_PAM)
-
- /*
- * If we're using PAM we want to short-circuit all the
- * checks below and dive straight into the PAM code.
- */
-
- fstrcpy(this_user, user);
-
- DEBUG(4, ("pass_check: Checking (PAM) password for user %s (l=%d)\n", user, pwlen));
-
-#else /* Not using PAM or Kerebos */
-
- DEBUG(4, ("pass_check: Checking password for user %s (l=%d)\n", user, pwlen));
-
- if (!pass) {
- DEBUG(3, ("Couldn't find user %s\n", user));
- return NT_STATUS_NO_SUCH_USER;
- }
-
-#ifdef HAVE_GETSPNAM
- {
- struct spwd *spass;
-
- /* many shadow systems require you to be root to get
- the password, in most cases this should already be
- the case when this function is called, except
- perhaps for IPC password changing requests */
-
- spass = getspnam(pass->pw_name);
- if (spass && spass->sp_pwdp)
- pstrcpy(pass->pw_passwd, spass->sp_pwdp);
- }
-#elif defined(IA_UINFO)
- {
- /* Need to get password with SVR4.2's ia_ functions
- instead of get{sp,pw}ent functions. Required by
- UnixWare 2.x, tested on version
- 2.1. (tangent@cyberport.com) */
- uinfo_t uinfo;
- if (ia_openinfo(pass->pw_name, &uinfo) != -1)
- ia_get_logpwd(uinfo, &(pass->pw_passwd));
- }
-#endif
-
-#ifdef HAVE_GETPRPWNAM
- {
- struct pr_passwd *pr_pw = getprpwnam(pass->pw_name);
- if (pr_pw && pr_pw->ufld.fd_encrypt)
- pstrcpy(pass->pw_passwd, pr_pw->ufld.fd_encrypt);
- }
-#endif
-
-#ifdef OSF1_ENH_SEC
- {
- struct pr_passwd *mypasswd;
- DEBUG(5, ("Checking password for user %s in OSF1_ENH_SEC\n",
- user));
- mypasswd = getprpwnam(user);
- if (mypasswd) {
- fstrcpy(pass->pw_name, mypasswd->ufld.fd_name);
- fstrcpy(pass->pw_passwd, mypasswd->ufld.fd_encrypt);
- } else {
- DEBUG(5,
- ("OSF1_ENH_SEC: No entry for user %s in protected database !\n",
- user));
- }
- }
-#endif
-
-#ifdef ULTRIX_AUTH
- {
- AUTHORIZATION *ap = getauthuid(pass->pw_uid);
- if (ap) {
- fstrcpy(pass->pw_passwd, ap->a_password);
- endauthent();
- }
- }
-#endif
-
- /* extract relevant info */
- fstrcpy(this_salt, pass->pw_passwd);
-
-#if defined(HAVE_TRUNCATED_SALT)
- /* crypt on some platforms (HPUX in particular)
- won't work with more than 2 salt characters. */
- this_salt[2] = 0;
-#endif
-
- fstrcpy(this_crypted, pass->pw_passwd);
-
- if (!*this_crypted) {
- if (!lp_null_passwords()) {
- DEBUG(2, ("Disallowing %s with null password\n",
- this_user));
- return NT_STATUS_LOGON_FAILURE;
- }
- if (!*password) {
- DEBUG(3,
- ("Allowing access to %s with null password\n",
- this_user));
- return NT_STATUS_OK;
- }
- }
-
-#endif /* defined(WITH_PAM) */
-
- /* try it as it came to us */
- nt_status = password_check(password);
- if NT_STATUS_IS_OK(nt_status) {
- if (fn) {
- fn(user, password);
- }
- return (nt_status);
- } else if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_WRONG_PASSWORD)) {
- /* No point continuing if its not the password thats to blame (ie PAM disabled). */
- return (nt_status);
- }
-
- if (!run_cracker) {
- return (nt_status);
- }
-
- /* if the password was given to us with mixed case then we don't
- * need to proceed as we know it hasn't been case modified by the
- * client */
- if (strhasupper(password) && strhaslower(password)) {
- return nt_status;
- }
-
- /* make a copy of it */
- StrnCpy(pass2, password, sizeof(pstring) - 1);
-
- /* try all lowercase if it's currently all uppercase */
- if (strhasupper(password)) {
- strlower(password);
- if NT_STATUS_IS_OK(nt_status = password_check(password)) {
- if (fn)
- fn(user, password);
- return (nt_status);
- }
- }
-
- /* give up? */
- if (level < 1) {
- /* restore it */
- fstrcpy(password, pass2);
- return NT_STATUS_WRONG_PASSWORD;
- }
-
- /* last chance - all combinations of up to level chars upper! */
- strlower(password);
-
-
- if NT_STATUS_IS_OK(nt_status = string_combinations(password, password_check, level)) {
- if (fn)
- fn(user, password);
- return nt_status;
- }
-
- /* restore it */
- fstrcpy(password, pass2);
-
- return NT_STATUS_WRONG_PASSWORD;
-}