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/* SLiM - Simple Login Manager
Copyright (C) 2007 Martin Parm
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.
*/
#ifndef _PAM_H_
#define _PAM_H_
#include <string>
#include <security/pam_appl.h>
#ifdef __LIBPAM_VERSION
#include <security/pam_misc.h>
#endif
namespace PAM
{
class Exception
{
public:
int errnum;
std::string errstr;
std::string func_name;
Exception(pam_handle_t* _pam_handle,
const std::string& _func_name,
int _errnum);
virtual ~Exception(void);
};
class Auth_Exception: public Exception
{
public:
Auth_Exception(pam_handle_t* _pam_handle,
const std::string& _func_name,
int _errnum);
};
class Cred_Exception: public Exception
{
public:
Cred_Exception(pam_handle_t* _pam_handle,
const std::string& _func_name,
int _errnum);
};
class Authenticator
{
private:
struct pam_conv pam_conversation;
pam_handle_t* pam_handle;
int last_result;
int _end(void);
public:
typedef int (conversation)(int num_msg,
const struct pam_message **msg,
struct pam_response **resp,
void *appdata_ptr);
enum ItemType {
Service = PAM_SERVICE,
User = PAM_USER,
User_Prompt = PAM_USER_PROMPT,
TTY = PAM_TTY,
Requestor = PAM_RUSER,
Host = PAM_RHOST,
Conv = PAM_CONV,
#ifdef __LIBPAM_VERSION
/* Fail_Delay = PAM_FAIL_DELAY */
#endif
};
public:
Authenticator(conversation* conv, void* data=0);
~Authenticator(void);
void start(const std::string& service);
void end(void);
void set_item(const ItemType item, const void* value);
const void* get_item(const ItemType item);
#ifdef __LIBPAM_VERSION
void fail_delay(const unsigned int micro_sec);
#endif
void authenticate(void);
void check_acct(void);
void open_session(void);
void close_session(void);
void setenv(const std::string& key, const std::string& value);
void delenv(const std::string& key);
const char* getenv(const std::string& key);
char** getenvlist(void);
private:
/* Explicitly disable copy constructor and copy assignment */
Authenticator(const PAM::Authenticator&);
Authenticator& operator=(const PAM::Authenticator&);
};
}
std::ostream& operator<<( std::ostream& os, const PAM::Exception& e);
#endif /* _PAM_H_ */
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