unit-tests: Add assert to check for installed IPsec SAs

src/libcharon/tests/utils/exchange_test_asserts.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 Tobias Brunner
+ * Copyright (C) 2016-2017 Tobias Brunner
  * HSR Hochschule fuer Technik Rapperswil
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -18,6 +18,7 @@
 #include <test_suite.h>
 
 #include "exchange_test_asserts.h"
+#include "mock_ipsec.h"
 
 /*
  * Described in header
@@ -180,3 +181,57 @@ bool exchange_test_asserts_message(listener_t *listener, ike_sa_t *ike_sa,
 	}
 	return TRUE;
 }
+
+/**
+ * Compare two SPIs
+ */
+static int spis_cmp(const void *a, const void *b)
+{
+	return *(const uint32_t*)a - *(const uint32_t*)b;
+}
+
+/**
+ * Compare two SPIs to sort them
+ */
+static int spis_sort(const void *a, const void *b, void *data)
+{
+	return spis_cmp(a, b);
+}
+
+
+/*
+ * Described in header
+ */
+void exchange_test_asserts_ipsec_sas(ipsec_sas_assert_t *sas)
+{
+	enumerator_t *enumerator;
+	array_t *spis;
+	ike_sa_t *ike_sa;
+	uint32_t spi;
+	int i;
+
+	spis = array_create(sizeof(uint32_t), 0);
+	for (i = 0; i < sas->count; i++)
+	{
+		array_insert(spis, ARRAY_TAIL, &sas->spis[i]);
+	}
+	array_sort(spis, spis_sort, NULL);
+
+	enumerator = mock_ipsec_create_sa_enumerator();
+	while (enumerator->enumerate(enumerator, &ike_sa, &spi))
+	{
+		if (ike_sa == sas->ike_sa)
+		{
+			i = array_bsearch(spis, &spi, spis_cmp, NULL);
+			assert_listener_msg(i != -1, sas, "unexpected IPsec SA %.8x", spi);
+			array_remove(spis, i, NULL);
+		}
+	}
+	enumerator->destroy(enumerator);
+	for (i = 0; i < array_count(spis); i++)
+	{
+		array_get(spis, i, &spi);
+		assert_listener_msg(!spi, sas, "expected IPsec SA %.8x not found", spi);
+	}
+	array_destroy(spis);
+}

src/libcharon/tests/utils/exchange_test_asserts.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 Tobias Brunner
+ * Copyright (C) 2016-2017 Tobias Brunner
  * HSR Hochschule fuer Technik Rapperswil
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -14,7 +14,7 @@
  */
 
 /**
- * Special assertions using listener_t.
+ * Special assertions using listener_t etc.
  *
  * @defgroup exchange_test_asserts exchange_test_asserts
  * @{ @ingroup test_utils_c
@@ -28,6 +28,7 @@
 typedef struct listener_hook_assert_t listener_hook_assert_t;
 typedef struct listener_message_assert_t listener_message_assert_t;
 typedef struct listener_message_rule_t listener_message_rule_t;
+typedef struct ipsec_sas_assert_t ipsec_sas_assert_t;
 
 struct listener_hook_assert_t {
 
@@ -340,4 +341,60 @@ bool exchange_test_asserts_message(listener_t *this, ike_sa_t *ike_sa,
 	exchange_test_helper->add_listener(exchange_test_helper, &_listener.listener); \
 })
 
+/**
+ * Data used to check IPsec SAs
+ */
+struct ipsec_sas_assert_t {
+
+	/**
+	 * Original source file
+	 */
+	const char *file;
+
+	/**
+	 * Source line
+	 */
+	int line;
+
+	/**
+	 * IKE_SA that installed the IPsec SAs
+	 */
+	ike_sa_t *ike_sa;
+
+	/**
+	 * SPIs to check
+	 */
+	uint32_t *spis;
+
+	/**
+	 * Number of SPIs for IPsec SAs to check
+	 */
+	int count;
+};
+
+/**
+ * Assert that all given IPsec SAs (and only these) are installed for the given
+ * IKE_SA.
+ */
+void exchange_test_asserts_ipsec_sas(ipsec_sas_assert_t *sas);
+
+/**
+ * Assert that the IPsec SAs with the given SPIs (and none other) are currently
+ * installed by the given IKE_SA.
+ *
+ * @param sa		IKE_SA
+ * @param ...		list of SPIs
+ */
+#define assert_ipsec_sas_installed(sa, ...) ({ \
+	uint32_t _spis[] = { __VA_ARGS__ }; \
+	ipsec_sas_assert_t _sas_assert = { \
+		.file = __FILE__, \
+		.line = __LINE__, \
+		.ike_sa = sa, \
+		.spis = _spis, \
+		.count = countof(_spis), \
+	}; \
+	exchange_test_asserts_ipsec_sas(&_sas_assert); \
+})
+
 #endif /** EXCHANGE_TEST_ASSERTS_H_ @}*/