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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) 2002-2010 OpenVPN Technologies, Inc. <sales@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_MAX_LINE_LEN 256
+
+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 {
+ bool enabled;
+ struct pf_set *pfs;
+#ifdef PLUGIN_PF
+ char *filename;
+ time_t file_last_mod;
+ unsigned int n_check_reload;
+ struct event_timeout reload;
+#endif
+};
+
+void pf_init_context (struct context *c);
+
+void pf_destroy_context (struct pf_context *pfc);
+
+#ifdef PLUGIN_PF
+void pf_check_reload (struct context *c);
+#endif
+
+#ifdef MANAGEMENT_PF
+bool pf_load_from_buffer_list (struct context *c, const struct buffer_list *config);
+#endif
+
+#ifdef ENABLE_DEBUG
+void pf_context_print (const struct pf_context *pfc, const char *prefix, const int lev);
+#endif
+
+#endif