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/*
* session.c - PPP session control.
*
* Copyright (c) 2007 Diego Rivera. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. The name(s) of the authors of this software must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* 3. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Paul Mackerras
* <paulus@samba.org>".
*
* THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __SESSION_H
#define __SESSION_H
#define SESS_AUTH 1 /* Check User Authentication */
#define SESS_ACCT 2 /* Check Account Validity */
/* Convenience parameter to do the whole enchilada */
#define SESS_ALL (SESS_AUTH | SESS_ACCT)
/*
* int session_start(...)
*
* Start a session, performing any necessary validations.
*
* Parameters:
* const int flags :
* Any combination of the SESS_XXX flags, to indicate what the function
* should do as part of its checks
*
* const char* user :
* The username to validate. May safely be null.
*
* const char* passwd :
* The password to validate the user with. May safely be null.
*
* const char* tty :
* The TTY the user is connected on. May safely be null.
*
* char** msg :
* A char* to return an error or success message. This message will be returned
* regardless of the result. May safely be null.
*
* Return Value:
* Zero value for failure, non-zero value for successful session verification.
*/
int
session_start(const int flags, const char* user, const char* passwd, const char* tty, char** msg);
/* Added these macros for convenience... */
#define session_auth(user, pass, tty, msg) \
session_start(SESS_AUTH, user, pass, tty, msg)
#define session_check(user, pass, tty, msg) \
session_start(SESS_ACCT, user, pass, tty, msg)
#define session_full(user, pass, tty, msg) \
session_start(SESS_ALL, user, pass, tty, msg)
/*
* void session_end(...)
*
* End a previously-started session.
*
* Parameters:
* const char* tty :
* The TTY the user is connected on. May safely be null.
*/
void
session_end(const char* tty);
#endif
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