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Diffstat (limited to '')
-rw-r--r-- | pf.h | 103 |
1 files changed, 103 insertions, 0 deletions
@@ -0,0 +1,103 @@ +/* + * 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 |