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/*
* OpenVPN -- An application to securely tunnel IP networks
* over a single TCP/UDP port, with support for SSL/TLS-based
* session authentication and key exchange,
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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
*/
/* packet filter functions */
#if defined(ENABLE_PF) && !defined(OPENVPN_PF_H)
#define OPENVPN_PF_H
#include "list.h"
#include "mroute.h"
#define PF_DEBUG 0
struct context;
struct ipv4_subnet {
bool exclude;
in_addr_t network;
in_addr_t netmask;
};
struct pf_subnet {
struct pf_subnet *next;
struct ipv4_subnet rule;
};
struct pf_subnet_set {
bool default_allow;
struct pf_subnet *list;
};
struct pf_cn {
bool exclude;
char *cn;
};
struct pf_cn_elem {
struct pf_cn_elem *next;
struct pf_cn rule;
};
struct pf_cn_set {
bool default_allow;
struct pf_cn_elem *list;
struct hash *hash_table;
};
struct pf_set {
bool kill;
struct pf_subnet_set sns;
struct pf_cn_set cns;
};
struct pf_context {
char *filename;
time_t file_last_mod;
unsigned int n_check_reload;
struct event_timeout reload;
struct pf_set *pfs;
};
void pf_init_context (struct context *c);
void pf_destroy_context (struct pf_context *pfc);
void pf_check_reload (struct context *c);
bool pf_c2c_test (const struct context *src, const struct context *dest);
bool pf_addr_test (const struct context *src, const struct mroute_addr *dest);
static inline bool
pf_kill_test (const struct pf_set *pfs)
{
return pfs->kill;
}
#if PF_DEBUG >= 1
void pf_context_print (const struct pf_context *pfc, const char *prefix, const int lev);
#endif
#endif
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