Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 117 insertions, 0 deletions

diff --git a/src/lib/test-mempool.c b/src/lib/test-mempool.c
new file mode 100644
index 0000000..7c707dd
--- /dev/null
+++ b/src/lib/test-mempool.c
@@ -0,0 +1,117 @@
+/* Copyright (c) 2017-2018 Dovecot authors, see the included COPYING file */
+
+#include "test-lib.h"
+
+#if SIZEOF_VOID_P == 8
+typedef char uint32max_array_t[4294967295];
+#else
+typedef char uint32max_array_t[65535];
+#endif
+
+#define BIG_MAX			POOL_MAX_ALLOC_SIZE
+
+#if defined(_LP64)
+#define LITTLE_MAX		((unsigned long long) INT32_MAX)
+#else
+#define LITTLE_MAX		((unsigned long long) INT16_MAX)
+#endif
+
+extern struct pool test_pool;
+
+/* Checks allocations & reallocations for a given type. */
+#define CHECK_OVERFLOW(type, nelem, _maxsize)					\
+	do {									\
+		const size_t maxsize = (_maxsize);				\
+		test_begin("mempool overflow - " #type);			\
+		type *ptr = p_new(&test_pool, type, (nelem));			\
+		test_assert(ptr == POINTER_CAST(maxsize));			\
+		/* grow: */							\
+		test_assert(p_realloc_type(&test_pool, ptr, type, (nelem) - 1, (nelem)) == POINTER_CAST(maxsize)); \
+		/* shrink: */							\
+		test_assert(p_realloc_type(&test_pool, ptr, type, (nelem), (nelem) - 1) == POINTER_CAST(maxsize - sizeof(type))); \
+		test_end();							\
+	} while (0)
+
+static void test_mempool_overflow(void)
+{
+	CHECK_OVERFLOW(uint32max_array_t, LITTLE_MAX, sizeof(uint32max_array_t) * LITTLE_MAX);
+	CHECK_OVERFLOW(char, BIG_MAX, BIG_MAX);
+	CHECK_OVERFLOW(uint32_t, BIG_MAX / sizeof(uint32_t), BIG_MAX - 3);
+}
+
+enum fatal_test_state fatal_mempool(unsigned int stage)
+{
+	static uint32max_array_t *m1;
+	static uint32_t *m2;
+
+	switch(stage) {
+	case 0:
+		test_expect_fatal_string("Trying to allocate");
+		test_begin("fatal mempool overflow");
+		m1 = p_new(&test_pool, uint32max_array_t, LITTLE_MAX + 3);
+		return FATAL_TEST_FAILURE;
+	case 1:
+		test_expect_fatal_string("Trying to allocate");
+		m2 = p_new(&test_pool, uint32_t, BIG_MAX / sizeof(uint32_t) + 1);
+		return FATAL_TEST_FAILURE;
+	case 2: /* grow */
+		test_expect_fatal_string("Trying to reallocate");
+		m1 = p_realloc_type(&test_pool, m1, uint32max_array_t,
+				    LITTLE_MAX + 2, LITTLE_MAX + 3);
+		return FATAL_TEST_FAILURE;
+	case 3:
+		test_expect_fatal_string("Trying to reallocate");
+		m2 = p_realloc_type(&test_pool, m2, uint32_t,
+				    BIG_MAX / sizeof(uint32_t),
+				    BIG_MAX / sizeof(uint32_t) + 1);
+		return FATAL_TEST_FAILURE;
+	case 4: /* shrink */
+		test_expect_fatal_string("Trying to reallocate");
+		m1 = p_realloc_type(&test_pool, m1, uint32max_array_t,
+				    LITTLE_MAX + 3, LITTLE_MAX + 2);
+		return FATAL_TEST_FAILURE;
+	case 5:
+		test_expect_fatal_string("Trying to reallocate");
+		m2 = p_realloc_type(&test_pool, m2, uint32_t,
+				    BIG_MAX / sizeof(uint32_t) + 2,
+				    BIG_MAX / sizeof(uint32_t) + 1);
+		return FATAL_TEST_FAILURE;
+	}
+	test_expect_fatal_string(NULL);
+	test_end();
+	return FATAL_TEST_FINISHED;
+}
+
+static const char *pool_test_get_name(pool_t pool ATTR_UNUSED) { return "test"; }
+static void pool_test_ref(pool_t pool ATTR_UNUSED) { }
+static void pool_test_unref(pool_t *pool) { *pool = NULL; }
+static void *pool_test_malloc(pool_t pool ATTR_UNUSED, size_t size) { return POINTER_CAST(size); }
+static void pool_test_free(pool_t pool ATTR_UNUSED, void *mem ATTR_UNUSED) { }
+static void *pool_test_realloc(pool_t pool ATTR_UNUSED, void *mem ATTR_UNUSED,
+			       size_t old_size ATTR_UNUSED, size_t new_size) {
+	return POINTER_CAST(new_size);
+}
+static void pool_test_clear(pool_t pool ATTR_UNUSED) { }
+static size_t pool_test_get_max_easy_alloc_size(pool_t pool ATTR_UNUSED) { return 12345; }
+static const struct pool_vfuncs test_pool_vfuncs = {
+	pool_test_get_name,
+	pool_test_ref,
+	pool_test_unref,
+	pool_test_malloc,
+	pool_test_free,
+	pool_test_realloc,
+	pool_test_clear,
+	pool_test_get_max_easy_alloc_size
+};
+
+struct pool test_pool = {
+	.v = &test_pool_vfuncs,
+
+	.alloconly_pool = TRUE,
+	.datastack_pool = FALSE,
+};
+
+void test_mempool(void)
+{
+	test_mempool_overflow();
+}