/*
- Unix SMB/Netbios implementation.
- Version 2.2.
+ Unix SMB/CIFS implementation.
PAM Password checking
Copyright (C) Andrew Tridgell 1992-2001
Copyright (C) John H Terpsta 1999-2001
#include "includes.h"
-extern int DEBUGLEVEL;
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
#ifdef WITH_PAM
*/
struct smb_pam_userdata {
- char *PAM_username;
- char *PAM_password;
- char *PAM_newpassword;
+ 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);
*********************************************************************/
static BOOL smb_pam_nt_status_error_handler(pam_handle_t *pamh, int pam_error,
- char *msg, int dbglvl, uint32 *nt_status)
+ char *msg, int dbglvl,
+ NTSTATUS *nt_status)
{
+ *nt_status = pam_to_nt_status(pam_error);
+
if (smb_pam_error_handler(pamh, pam_error, msg, dbglvl))
return True;
- if (*nt_status == NT_STATUS_NOPROBLEMO) {
+ 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"));
default:
/* Must be an error of some sort... */
- free(reply);
+ SAFE_FREE(reply);
return PAM_CONV_ERR;
}
}
all_string_sub(buf, "\\t", "\t", 0);
}
-static void pwd_sub(char *buf, char *username, char *oldpass, char *newpass)
+static void pwd_sub(char *buf, const char *username, const char *oldpass, const char *newpass)
{
- pstring_sub(buf, "%u", username);
+ fstring_sub(buf, "%u", username);
all_string_sub(buf, "%o", oldpass, sizeof(fstring));
all_string_sub(buf, "%n", newpass, sizeof(fstring));
}
while (list) {
struct chat_struct *old_head = list;
DLIST_REMOVE(list, list);
- free(old_head);
+ SAFE_FREE(old_head);
}
}
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);
- strlower(current_prompt);
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 (ms_fnmatch(t->prompt, current_prompt) == 0) {
+ 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);
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);
- free(reply);
- reply = NULL;
+ 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);
- strlower(current_prompt);
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 (ms_fnmatch(t->prompt, current_prompt) == 0) {
+ 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);
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);
- free(reply);
- reply = NULL;
+ SAFE_FREE(reply);
return PAM_CONV_ERR;
}
break;
default:
/* Must be an error of some sort... */
free_pw_chat(pw_chat);
- free(reply);
- reply = NULL;
+ SAFE_FREE(reply);
return PAM_CONV_ERR;
}
}
static void smb_free_pam_conv(struct pam_conv *pconv)
{
if (pconv)
- safe_free(pconv->appdata_ptr);
+ SAFE_FREE(pconv->appdata_ptr);
- safe_free(pconv);
+ SAFE_FREE(pconv);
}
/***************************************************************************
Allocate a pam_conv struct.
****************************************************************************/
-static struct pam_conv *smb_setup_pam_conv(smb_pam_conv_fn smb_pam_conv_fnptr, char *user,
- char *passwd, char *newpass)
+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);
+ SAFE_FREE(pconv);
+ SAFE_FREE(udp);
return NULL;
}
* Start PAM authentication for specified account
*/
-static BOOL smb_pam_start(pam_handle_t **pamh, char *user, char *rhost, struct pam_conv *pconv)
+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;
}
if (rhost == NULL) {
- rhost = client_name();
+ our_rhost = client_name();
if (strequal(rhost,"UNKNOWN"))
- rhost = client_addr();
+ our_rhost = client_addr();
+ } else {
+ our_rhost = rhost;
}
#ifdef PAM_RHOST
- DEBUG(4,("smb_pam_start: PAM: setting rhost to: %s\n", rhost));
- pam_error = pam_set_item(*pamh, PAM_RHOST, 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;
/*
* PAM Authentication Handler
*/
-static uint32 smb_pam_auth(pam_handle_t *pamh, char *user)
+static NTSTATUS smb_pam_auth(pam_handle_t *pamh, const char *user)
{
int pam_error;
- uint32 nt_status = NT_STATUS_LOGON_FAILURE;
+ NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
/*
* To enable debugging set in /etc/pam.d/samba:
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_NOPROBLEMO;
break;
default:
DEBUG(0, ("smb_pam_auth: PAM: UNKNOWN ERROR while authenticating user %s\n", user));
- nt_status = NT_STATUS_LOGON_FAILURE;
break;
}
/*
* PAM Account Handler
*/
-static uint32 smb_pam_account(pam_handle_t *pamh, char * user)
+static NTSTATUS smb_pam_account(pam_handle_t *pamh, const char * user)
{
int pam_error;
- uint32 nt_status = NT_STATUS_ACCOUNT_DISABLED;
+ 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_NOPROBLEMO;
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;
}
* PAM Credential Setting
*/
-static uint32 smb_pam_setcred(pam_handle_t *pamh, char * user)
+static NTSTATUS smb_pam_setcred(pam_handle_t *pamh, const char * user)
{
int pam_error;
- uint32 nt_status = NT_STATUS_NO_TOKEN;
+ NTSTATUS nt_status = NT_STATUS_NO_TOKEN;
/*
* This will allow samba to aquire a kerberos token. And, when
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_NOPROBLEMO;
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;
}
/*
* PAM Internal Session Handler
*/
-static BOOL smb_internal_pam_session(pam_handle_t *pamh, char *user, char *tty, BOOL flag)
+static BOOL smb_internal_pam_session(pam_handle_t *pamh, const char *user, const char *tty, BOOL flag)
{
int pam_error;
* Internal PAM Password Changer.
*/
-static BOOL smb_pam_chauthtok(pam_handle_t *pamh, char * user)
+static BOOL smb_pam_chauthtok(pam_handle_t *pamh, const char * user)
{
int pam_error;
* PAM Externally accessible Account handler
*/
-uint32 smb_pam_accountcheck(char * user)
+NTSTATUS smb_pam_accountcheck(const char * user)
{
- uint32 nt_status = NT_STATUS_ACCOUNT_DISABLED;
+ 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_NOPROBLEMO;
+ return NT_STATUS_OK;
if ((pconv = smb_setup_pam_conv(smb_pam_conv, user, NULL, NULL)) == NULL)
- return False;
+ return NT_STATUS_NO_MEMORY;
if (!smb_pam_start(&pamh, user, NULL, pconv))
return NT_STATUS_ACCOUNT_DISABLED;
- if ((nt_status = smb_pam_account(pamh, user)) != NT_STATUS_NOPROBLEMO)
+ 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);
* PAM Password Validation Suite
*/
-uint32 smb_pam_passcheck(char * user, char * password)
+NTSTATUS smb_pam_passcheck(const char * user, const char * password)
{
pam_handle_t *pamh = NULL;
- uint32 nt_status = NT_STATUS_LOGON_FAILURE;
+ NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
struct pam_conv *pconv = NULL;
/*
if (!smb_pam_start(&pamh, user, NULL, pconv))
return NT_STATUS_LOGON_FAILURE;
- if ((nt_status = smb_pam_auth(pamh, user)) != NT_STATUS_NOPROBLEMO) {
+ 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 = smb_pam_account(pamh, user)) != NT_STATUS_NOPROBLEMO) {
+ 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 = smb_pam_setcred(pamh, user)) != NT_STATUS_NOPROBLEMO) {
+ 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;
* PAM Password Change Suite
*/
-BOOL smb_pam_passchange(char * user, char * oldpassword, char * newpassword)
+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;
#else
/* If PAM not used, no PAM restrictions on accounts. */
- uint32 smb_pam_accountcheck(char * user)
+NTSTATUS smb_pam_accountcheck(const char * user)
{
- return NT_STATUS_NOPROBLEMO;
+ 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)
+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)
+BOOL smb_pam_close_session(char *in_user, char *tty, char *rhost)
{
return True;
}
git.samba.org / sfrench / samba-autobuild / .git / blobdiff