[svn-upgrade] Integrating new upstream version, strongswan (4.1.1)

1 files changed, 231 insertions, 0 deletions

diff --git a/src/libstrongswan/utils/host.h b/src/libstrongswan/utils/host.h
new file mode 100644
index 000000000..ee9aa457f
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+++ b/src/libstrongswan/utils/host.h
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+/**
+ * @file host.h
+ *
+ * @brief Interface of host_t.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2007 Tobias Brunner
+ * Copyright (C) 2006 Daniel Roethlisberger
+ * Copyright (C) 2005-2006 Martin Willi
+ * Copyright (C) 2005 Jan Hutter
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#ifndef HOST_H_
+#define HOST_H_
+
+typedef enum host_diff_t host_diff_t;
+typedef struct host_t host_t;
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <library.h>
+
+/**
+ * Differences between two hosts. They differ in
+ * address, port, or both.
+ */
+enum host_diff_t {
+	HOST_DIFF_NONE = 0,
+	HOST_DIFF_ADDR = 1,
+	HOST_DIFF_PORT = 2,
+};
+
+/**
+ * @brief Representates a Host
+ * 
+ * Host object, identifies a address:port pair and defines some 
+ * useful functions on it.
+ * 
+ * @b Constructors:
+ * - host_create()
+ * - host_create_from_chunk()
+ * - host_create_from_sockaddr()
+ * 
+ * @todo Add IPv6 support
+ * 
+ * @ingroup utils
+ */
+struct host_t {
+	
+	/** 
+	 * @brief Build a clone of this host object.
+	 * 
+	 * @param this			object to clone
+	 * @return				cloned host
+	 */
+	host_t *(*clone) (host_t *this);
+	
+	/** 
+	 * @brief Get a pointer to the internal sockaddr struct.
+	 * 
+	 * This is used for sending and receiving via sockets.
+	 * 
+	 * @param this			object to clone
+	 * @return				pointer to the internal sockaddr structure
+	 */
+	sockaddr_t  *(*get_sockaddr) (host_t *this);
+	
+	/** 
+	 * @brief Get the length of the sockaddr struct.
+	 * 
+	 * Depending on the family, the length of the sockaddr struct
+	 * is different. Use this function to get the length of the sockaddr
+	 * struct returned by get_sock_addr.
+	 * 
+	 * This is used for sending and receiving via sockets.
+	 * 
+	 * @param this			object to clone
+	 * @return				length of the sockaddr struct
+	 */
+	socklen_t *(*get_sockaddr_len) (host_t *this);
+	
+	/**
+	 * @brief Gets the family of the address
+	 * 
+	 * @param this			calling object
+	 * @return				family
+	 */
+	int (*get_family) (host_t *this);
+	
+	/** 
+	 * @brief Checks if the ip address of host is set to default route.
+	 * 
+	 * @param this			calling object
+	 * @return				
+	 * 						- TRUE if host has IP 0.0.0.0 for default route 
+	 * 						- FALSE otherwise
+	 */
+	bool (*is_anyaddr) (host_t *this);
+	
+	/** 
+	 * @brief get the address of this host as chunk_t
+	 * 
+	 * Returned chunk points to internal data.
+	 * 
+	 * @param this			object
+	 * @return				address string, 
+	 */
+	chunk_t (*get_address) (host_t *this);
+		
+	/** 
+	 * @brief get the port of this host
+	 * 
+	 * @param this			object to clone
+	 * @return				port number
+	 */
+	u_int16_t (*get_port) (host_t *this);
+
+	/** 
+	 * @brief set the port of this host
+	 *
+	 * @param this			object to clone
+	 * @param port			port numer
+	 */
+	void (*set_port) (host_t *this, u_int16_t port);
+		
+	/** 
+	 * @brief Compare the ips of two hosts hosts.
+	 * 
+	 * @param this			object to compare
+	 * @param other			the other to compare
+	 * @return				TRUE if addresses are equal.
+	 */
+	bool (*ip_equals) (host_t *this, host_t *other);
+		
+	/** 
+	 * @brief Compare two hosts, with port.
+	 * 
+	 * @param this			object to compare
+	 * @param other			the other to compare
+	 * @return				TRUE if addresses and ports are equal.
+	 */
+	bool (*equals) (host_t *this, host_t *other);
+
+	/** 
+	 * @brief Compare two hosts and return the differences.
+	 *
+	 * @param this			object to compare
+	 * @param other			the other to compare
+	 * @return				differences in a combination of host_diff_t's
+	 */
+	host_diff_t (*get_differences) (host_t *this, host_t *other);
+	
+	/** 
+	 * @brief Destroy this host object
+	 * 
+	 * @param this			calling
+	 * @return				SUCCESS in any case
+	 */
+	void (*destroy) (host_t *this);
+};
+
+/**
+ * @brief Constructor to create a host_t object from an address string.
+ *
+ * @param string		string of an address, such as "152.96.193.130"
+ * @param port			port number
+ * @return 				
+ * 						- host_t object 
+ * 						- NULL, if string not an address.
+ * 
+ * @ingroup network
+ */
+host_t *host_create_from_string(char *string, u_int16_t port);
+
+/**
+ * @brief Constructor to create a host_t object from an address chunk
+ *
+ * @param family 		Address family to use for this object, such as AF_INET or AF_INET6
+ * @param address		address as 4 byte chunk_t in networ order
+ * @param port			port number
+ * @return 				
+ * 						- host_t object 
+ * 						- NULL, if family not supported or chunk_t length not 4 bytes.
+ * 
+ * @ingroup network
+ */
+host_t *host_create_from_chunk(int family, chunk_t address, u_int16_t port);
+
+/**
+ * @brief Constructor to create a host_t object from a sockaddr struct
+ *
+ * @param sockaddr		sockaddr struct which contains family, address and port
+ * @return 				
+ * 						- host_t object 
+ * 						- NULL, if family not supported.
+ * 
+ * @ingroup network
+ */
+host_t *host_create_from_sockaddr(sockaddr_t *sockaddr);
+
+/**
+ * @brief Create a host without an address, a "any" host.
+ *
+ * @param family		family of the any host
+ * @return 				
+ * 						- host_t object 
+ * 						- NULL, if family not supported.
+ * 
+ * @ingroup network
+ */
+host_t *host_create_any(int family);
+
+#endif /*HOST_H_*/