?? session_id.h
字號(hào):
/* * OpenVPN -- An application to securely tunnel IP networks * over a single UDP port, with support for SSL/TLS-based * session authentication and key exchange, * packet encryption, packet authentication, and * packet compression. * * Copyright (C) 2002-2004 James Yonan <jim@yonan.net> * * 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 (see the file COPYING included with this * distribution); if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *//* * Each session is identified by a random 8-byte session identifier. * * For efficiency, the session id is only transmitted over the control * channel (which only sees traffic occasionally when keys are being * negotiated). */#if defined(USE_CRYPTO) && defined(USE_SSL)#ifndef SESSION_ID_H#define SESSION_ID_H#include "basic.h"#include "buffer.h"struct session_id{ uint8_t id[8];};extern const struct session_id x_session_id_zero;#define SID_SIZE (sizeof (x_session_id_zero.id))static inline boolsession_id_equal (const struct session_id *sid1, const struct session_id *sid2){ return !memcmp (sid1->id, sid2->id, SID_SIZE);}static inline boolsession_id_defined (const struct session_id *sid1){ return memcmp (sid1->id, &x_session_id_zero.id, SID_SIZE) != 0;}static inline boolsession_id_read (struct session_id *sid, struct buffer *buf){ return buf_read (buf, sid->id, SID_SIZE);}static inline boolsession_id_write_prepend (const struct session_id *sid, struct buffer *buf){ return buf_write_prepend (buf, sid->id, SID_SIZE);}static inline boolsession_id_write (const struct session_id *sid, struct buffer *buf){ return buf_write (buf, sid->id, SID_SIZE);}void session_id_random (struct session_id *sid);const char *session_id_print (const struct session_id *sid, struct gc_arena *gc);#endif /* SESSION_ID_H */#endif /* USE_CRYPTO && USE_SSL */
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