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

1 files changed, 184 insertions, 0 deletions

diff --git a/src/libstrongswan/library.c b/src/libstrongswan/library.c
new file mode 100644
index 000000000..9f96d119c
--- /dev/null
+++ b/src/libstrongswan/library.c
@@ -0,0 +1,184 @@
+/**
+ * @file library.c
+ *
+ * @brief Helper functions and definitions.
+ *
+ */
+
+/*
+ * 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.
+ */
+
+#include <string.h>
+#include <time.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <pthread.h>
+
+#include "library.h"
+
+#include <printf_hook.h>
+
+ENUM(status_names, SUCCESS, DESTROY_ME,
+	"SUCCESS",
+	"FAILED",
+	"OUT_OF_RES",
+	"ALREADY_DONE",
+	"NOT_SUPPORTED",
+	"INVALID_ARG",
+	"NOT_FOUND",
+	"PARSE_ERROR",
+	"VERIFY_ERROR",
+	"INVALID_STATE",
+	"DESTROY_ME",
+	"NEED_MORE",
+);
+
+/**
+ * Described in header.
+ */
+void *clalloc(void * pointer, size_t size)
+{
+	void *data;
+	data = malloc(size);
+	
+	memcpy(data, pointer,size);
+	
+	return (data);
+}
+
+/**
+ * Described in header.
+ */
+void memxor(u_int8_t dest[], u_int8_t src[], size_t n)
+{
+	size_t i;
+	for (i = 0; i < n; i++)
+	{
+		dest[i] ^= src[i];
+	}
+}
+
+/**
+ * We use a single mutex for all refcount variables. This
+ * is not optimal for performance, but the critical section
+ * is not that long...
+ * TODO: Consider to include a mutex in each refcount_t variable.
+ */
+static pthread_mutex_t ref_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+/**
+ * Described in header.
+ * 
+ * TODO: May be implemented with atomic CPU instructions
+ * instead of a mutex.
+ */
+void ref_get(refcount_t *ref)
+{
+	pthread_mutex_lock(&ref_mutex);
+	(*ref)++;
+	pthread_mutex_unlock(&ref_mutex);
+}
+
+/**
+ * Described in header.
+ * 
+ * TODO: May be implemented with atomic CPU instructions
+ * instead of a mutex.
+ */
+bool ref_put(refcount_t *ref)
+{
+	bool more_refs;
+	
+	pthread_mutex_lock(&ref_mutex);
+	more_refs = --(*ref);
+	pthread_mutex_unlock(&ref_mutex);
+	return !more_refs;
+}
+
+/**
+ * output handler in printf() for time_t
+ */
+static int print_time(FILE *stream, const struct printf_info *info,
+					  const void *const *args)
+{
+	static const char* months[] = {
+		"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+		"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+	};
+	time_t *time = *((time_t**)(args[0]));
+	bool utc = TRUE;
+	struct tm t;
+	
+	if (info->alt)
+	{
+		utc = *((bool*)(args[1]));
+	}
+	if (time == UNDEFINED_TIME)
+	{
+		return fprintf(stream, "--- -- --:--:--%s----",
+					   info->alt ? " UTC " : " ");
+	}
+	if (utc)
+	{
+		gmtime_r(time, &t);
+	}
+	else
+	{
+		localtime_r(time, &t);
+	}
+	return fprintf(stream, "%s %02d %02d:%02d:%02d%s%04d",
+				   months[t.tm_mon], t.tm_mday, t.tm_hour, t.tm_min,
+				   t.tm_sec, utc ? " UTC " : " ", t.tm_year + 1900);
+}
+
+/**
+ * output handler in printf() for time deltas
+ */
+static int print_time_delta(FILE *stream, const struct printf_info *info,
+							const void *const *args)
+{
+	time_t *start = *((time_t**)(args[0]));
+	time_t *end   = *((time_t**)(args[1]));
+	u_int delta   = abs(*end - *start);
+
+	char* unit = "second";
+
+	if (delta > 2 * 60 * 60 * 24)
+	{
+		delta /= 60 * 60 * 24;
+		unit = "day";
+	}
+	else if (delta > 2 * 60 * 60)
+	{
+		delta /= 60 * 60;
+		unit = "hour";
+	}
+	else if (delta > 2 * 60)
+	{
+		delta /= 60;
+		unit = "minute";
+	}
+	return fprintf(stream, "%d %s%s", delta, unit, (delta == 1)? "":"s");
+}
+
+/**
+ * register printf() handlers for time_t
+ */
+static void __attribute__ ((constructor))print_register()
+{
+	register_printf_function(PRINTF_TIME, print_time, arginfo_ptr_alt_ptr_int);
+	register_printf_function(PRINTF_TIME_DELTA, print_time_delta, arginfo_ptr_ptr);
+}