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-rw-r--r--src/libstrongswan/collections/linked_list.c42
-rw-r--r--src/libstrongswan/collections/linked_list.h34
-rw-r--r--src/libstrongswan/credentials/credential_manager.c12
-rw-r--r--src/libstrongswan/credentials/sets/mem_cred.c16
-rw-r--r--src/libstrongswan/crypto/crypto_factory.c11
-rw-r--r--src/libstrongswan/plugins/plugin_loader.c38
-rw-r--r--src/libstrongswan/tests/suites/test_linked_list.c81
7 files changed, 161 insertions, 73 deletions
diff --git a/src/libstrongswan/collections/linked_list.c b/src/libstrongswan/collections/linked_list.c
index 5fcf8bc05..f877be5a6 100644
--- a/src/libstrongswan/collections/linked_list.c
+++ b/src/libstrongswan/collections/linked_list.c
@@ -47,6 +47,17 @@ struct element_t {
element_t *next;
};
+/*
+ * Described in header
+ */
+bool linked_list_match_str(void *item, va_list args)
+{
+ char *a = item, *b;
+
+ VA_ARGS_VGET(args, b);
+ return streq(a, b);
+}
+
/**
* Creates an empty linked list object.
*/
@@ -371,26 +382,41 @@ METHOD(linked_list_t, remove_at, void,
}
}
-METHOD(linked_list_t, find_first, status_t,
- private_linked_list_t *this, linked_list_match_t match,
- void **item, void *d1, void *d2, void *d3, void *d4, void *d5)
+METHOD(linked_list_t, find_first, bool,
+ private_linked_list_t *this, linked_list_match_t match, void **item, ...)
{
element_t *current = this->first;
+ va_list args;
+ bool matched = FALSE;
+
+ if (!match && !item)
+ {
+ return FALSE;
+ }
while (current)
{
- if ((match && match(current->value, d1, d2, d3, d4, d5)) ||
- (!match && item && current->value == *item))
+ if (match)
+ {
+ va_start(args, item);
+ matched = match(current->value, args);
+ va_end(args);
+ }
+ else
+ {
+ matched = current->value == *item;
+ }
+ if (matched)
{
if (item != NULL)
{
*item = current->value;
}
- return SUCCESS;
+ return TRUE;
}
current = current->next;
}
- return NOT_FOUND;
+ return FALSE;
}
METHOD(linked_list_t, invoke_offset, void,
@@ -548,7 +574,7 @@ linked_list_t *linked_list_create()
.reset_enumerator = (void*)_reset_enumerator,
.get_first = _get_first,
.get_last = _get_last,
- .find_first = (void*)_find_first,
+ .find_first = _find_first,
.insert_first = _insert_first,
.insert_last = _insert_last,
.insert_before = (void*)_insert_before,
diff --git a/src/libstrongswan/collections/linked_list.h b/src/libstrongswan/collections/linked_list.h
index 3f80cd8db..246b9a5c5 100644
--- a/src/libstrongswan/collections/linked_list.h
+++ b/src/libstrongswan/collections/linked_list.h
@@ -28,15 +28,22 @@ typedef struct linked_list_t linked_list_t;
#include <collections/enumerator.h>
/**
- * Method to match elements in a linked list (used in find_* functions)
+ * Function to match elements in a linked list
*
* @param item current list item
- * @param ... user supplied data (only pointers, at most 5)
+ * @param args user supplied data
+ * @return TRUE, if the item matched, FALSE otherwise
+ */
+typedef bool (*linked_list_match_t)(void *item, va_list args);
+
+/**
+ * Helper function to match a string in a linked list of strings
+ *
+ * @param item list item (char*)
+ * @param args user supplied data (char*)
* @return
- * - TRUE, if the item matched
- * - FALSE, otherwise
*/
-typedef bool (*linked_list_match_t)(void *item, ...);
+bool linked_list_match_str(void *item, va_list args);
/**
* Function to be invoked on elements in a linked list
@@ -167,21 +174,20 @@ struct linked_list_t {
*
* The first object passed to the match function is the current list item,
* followed by the user supplied data.
- * If the supplied function returns TRUE this function returns SUCCESS, and
- * the current object is returned in the third parameter, otherwise,
+ * If the supplied function returns TRUE so does this function, and the
+ * current object is returned in the third parameter (if given), otherwise,
* the next item is checked.
*
* If match is NULL, *item and the current object are compared.
*
- * @warning Only use pointers as user supplied data.
- *
* @param match comparison function to call on each object, or NULL
- * @param item the list item, if found
- * @param ... user data to supply to match function (limited to 5 arguments)
- * @return SUCCESS if found, NOT_FOUND otherwise
+ * @param item the list item, if found, or NULL
+ * @param ... user data to supply to match function
+ * @return TRUE if found, FALSE otherwise (or if neither match,
+ * nor item is supplied)
*/
- status_t (*find_first) (linked_list_t *this, linked_list_match_t match,
- void **item, ...);
+ bool (*find_first)(linked_list_t *this, linked_list_match_t match,
+ void **item, ...);
/**
* Invoke a method on all of the contained objects.
diff --git a/src/libstrongswan/credentials/credential_manager.c b/src/libstrongswan/credentials/credential_manager.c
index 5dd8e42b1..0a8d3d101 100644
--- a/src/libstrongswan/credentials/credential_manager.c
+++ b/src/libstrongswan/credentials/credential_manager.c
@@ -812,11 +812,12 @@ static bool verify_trust_chain(private_credential_manager_t *this,
return trusted;
}
-/**
- * List find match function for certificates
- */
-static bool cert_equals(certificate_t *a, certificate_t *b)
+CALLBACK(cert_equals, bool,
+ certificate_t *a, va_list args)
{
+ certificate_t *b;
+
+ VA_ARGS_VGET(args, b);
return a->equals(a, b);
}
@@ -896,8 +897,7 @@ METHOD(enumerator_t, trusted_enumerate, bool,
continue;
}
- if (this->failed->find_first(this->failed, (void*)cert_equals,
- NULL, current) == SUCCESS)
+ if (this->failed->find_first(this->failed, cert_equals, NULL, current))
{ /* check each candidate only once */
continue;
}
diff --git a/src/libstrongswan/credentials/sets/mem_cred.c b/src/libstrongswan/credentials/sets/mem_cred.c
index 7576220bc..4d594e439 100644
--- a/src/libstrongswan/credentials/sets/mem_cred.c
+++ b/src/libstrongswan/credentials/sets/mem_cred.c
@@ -149,8 +149,12 @@ METHOD(credential_set_t, create_cert_enumerator, enumerator_t*,
cert_data_destroy);
}
-static bool certificate_equals(certificate_t *item, certificate_t *cert)
+CALLBACK(certificate_equals, bool,
+ certificate_t *item, va_list args)
{
+ certificate_t *cert;
+
+ VA_ARGS_VGET(args, cert);
return item->equals(item, cert);
}
@@ -163,9 +167,8 @@ static certificate_t *add_cert_internal(private_mem_cred_t *this, bool trusted,
{
certificate_t *cached;
this->lock->write_lock(this->lock);
- if (this->untrusted->find_first(this->untrusted,
- (linked_list_match_t)certificate_equals,
- (void**)&cached, cert) == SUCCESS)
+ if (this->untrusted->find_first(this->untrusted, certificate_equals,
+ (void**)&cached, cert))
{
cert->destroy(cert);
cert = cached->get_ref(cached);
@@ -201,9 +204,8 @@ METHOD(mem_cred_t, get_cert_ref, certificate_t*,
certificate_t *cached;
this->lock->read_lock(this->lock);
- if (this->untrusted->find_first(this->untrusted,
- (linked_list_match_t)certificate_equals,
- (void**)&cached, cert) == SUCCESS)
+ if (this->untrusted->find_first(this->untrusted, certificate_equals,
+ (void**)&cached, cert))
{
cert->destroy(cert);
cert = cached->get_ref(cached);
diff --git a/src/libstrongswan/crypto/crypto_factory.c b/src/libstrongswan/crypto/crypto_factory.c
index 42d795d0a..096bcbc9c 100644
--- a/src/libstrongswan/crypto/crypto_factory.c
+++ b/src/libstrongswan/crypto/crypto_factory.c
@@ -811,11 +811,12 @@ METHOD(crypto_factory_t, remove_dh, void,
this->lock->unlock(this->lock);
}
-/**
- * match algorithms of an entry?
- */
-static bool entry_match(entry_t *a, entry_t *b)
+CALLBACK(entry_match, bool,
+ entry_t *a, va_list args)
{
+ entry_t *b;
+
+ VA_ARGS_VGET(args, b);
return a->algo == b->algo;
}
@@ -828,7 +829,7 @@ CALLBACK(unique_check, bool,
while (orig->enumerate(orig, &entry))
{
- if (list->find_first(list, (void*)entry_match, NULL, entry) == SUCCESS)
+ if (list->find_first(list, entry_match, NULL, entry))
{
continue;
}
diff --git a/src/libstrongswan/plugins/plugin_loader.c b/src/libstrongswan/plugins/plugin_loader.c
index fcd11951f..42d443b7a 100644
--- a/src/libstrongswan/plugins/plugin_loader.c
+++ b/src/libstrongswan/plugins/plugin_loader.c
@@ -606,18 +606,14 @@ static void load_provided(private_plugin_loader_t *this,
provided_feature_t *provided,
int level);
-/**
- * Used to find a loaded feature
- */
-static bool is_feature_loaded(provided_feature_t *item)
+CALLBACK(is_feature_loaded, bool,
+ provided_feature_t *item, va_list args)
{
return item->loaded;
}
-/**
- * Used to find a loadable feature
- */
-static bool is_feature_loadable(provided_feature_t *item)
+CALLBACK(is_feature_loadable, bool,
+ provided_feature_t *item, va_list args)
{
return !item->loading && !item->loaded && !item->failed;
}
@@ -630,8 +626,7 @@ static bool loaded_feature_matches(registered_feature_t *a,
{
if (plugin_feature_matches(a->feature, b->feature))
{
- return b->plugins->find_first(b->plugins, (void*)is_feature_loaded,
- NULL) == SUCCESS;
+ return b->plugins->find_first(b->plugins, is_feature_loaded, NULL);
}
return FALSE;
}
@@ -644,8 +639,7 @@ static bool loadable_feature_equals(registered_feature_t *a,
{
if (plugin_feature_equals(a->feature, b->feature))
{
- return b->plugins->find_first(b->plugins, (void*)is_feature_loadable,
- NULL) == SUCCESS;
+ return b->plugins->find_first(b->plugins, is_feature_loadable, NULL);
}
return FALSE;
}
@@ -658,8 +652,7 @@ static bool loadable_feature_matches(registered_feature_t *a,
{
if (plugin_feature_matches(a->feature, b->feature))
{
- return b->plugins->find_first(b->plugins, (void*)is_feature_loadable,
- NULL) == SUCCESS;
+ return b->plugins->find_first(b->plugins, is_feature_loadable, NULL);
}
return FALSE;
}
@@ -1011,8 +1004,8 @@ static void purge_plugins(private_plugin_loader_t *this)
{ /* feature interface not supported */
continue;
}
- if (entry->features->find_first(entry->features,
- (void*)is_feature_loaded, NULL) != SUCCESS)
+ if (!entry->features->find_first(entry->features, is_feature_loaded,
+ NULL))
{
DBG2(DBG_LIB, "unloading plugin '%s' without loaded features",
entry->plugin->get_name(entry->plugin));
@@ -1062,6 +1055,15 @@ static bool find_plugin(char *path, char *name, char *buf, char **file)
return FALSE;
}
+CALLBACK(find_plugin_cb, bool,
+ char *path, va_list args)
+{
+ char *name, *buf, **file;
+
+ VA_ARGS_VGET(args, name, buf, file);
+ return find_plugin(path, name, buf, file);
+}
+
/**
* Used to sort plugins by priority
*/
@@ -1244,8 +1246,8 @@ METHOD(plugin_loader_t, load_plugins, bool,
}
if (this->paths)
{
- this->paths->find_first(this->paths, (void*)find_plugin, NULL,
- token, buf, &file);
+ this->paths->find_first(this->paths, find_plugin_cb, NULL, token,
+ buf, &file);
}
if (!file)
{
diff --git a/src/libstrongswan/tests/suites/test_linked_list.c b/src/libstrongswan/tests/suites/test_linked_list.c
index 209e311d2..aa1e0429f 100644
--- a/src/libstrongswan/tests/suites/test_linked_list.c
+++ b/src/libstrongswan/tests/suites/test_linked_list.c
@@ -183,26 +183,48 @@ END_TEST
* find
*/
-static bool match_a_b(void *item, void *a, void *b)
+CALLBACK(find_a_b, bool,
+ void *item, va_list args)
{
+ void *a, *b;
+
+ VA_ARGS_VGET(args, a, b);
ck_assert(a == (void*)1);
ck_assert(b == (void*)2);
return item == a || item == b;
}
+CALLBACK(find_a, bool,
+ void *item, va_list args)
+{
+ void *a;
+
+ VA_ARGS_VGET(args, a);
+ return match_a(item, a);
+}
+
+CALLBACK(find_b, bool,
+ void *item, va_list args)
+{
+ void *b;
+
+ VA_ARGS_VGET(args, b);
+ return match_b(item, b);
+}
+
START_TEST(test_find)
{
void *a = (void*)1, *b = (void*)2;
- ck_assert(list->find_first(list, NULL, &a) == NOT_FOUND);
+ ck_assert(!list->find_first(list, NULL, &a));
list->insert_last(list, a);
- ck_assert(list->find_first(list, NULL, &a) == SUCCESS);
- ck_assert(list->find_first(list, NULL, &b) == NOT_FOUND);
+ ck_assert(list->find_first(list, NULL, &a));
+ ck_assert(!list->find_first(list, NULL, &b));
list->insert_last(list, b);
- ck_assert(list->find_first(list, NULL, &a) == SUCCESS);
- ck_assert(list->find_first(list, NULL, &b) == SUCCESS);
+ ck_assert(list->find_first(list, NULL, &a));
+ ck_assert(list->find_first(list, NULL, &b));
- ck_assert(list->find_first(list, NULL, NULL) == NOT_FOUND);
+ ck_assert(!list->find_first(list, NULL, NULL));
}
END_TEST
@@ -210,29 +232,57 @@ START_TEST(test_find_callback)
{
void *a = (void*)1, *b = (void*)2, *x = NULL;
- ck_assert(list->find_first(list, (linked_list_match_t)match_a_b, &x, a, b) == NOT_FOUND);
+ ck_assert(!list->find_first(list, find_a_b, &x, a, b));
list->insert_last(list, a);
- ck_assert(list->find_first(list, (linked_list_match_t)match_a, NULL, a) == SUCCESS);
+ ck_assert(list->find_first(list, find_a, NULL, a));
x = NULL;
- ck_assert(list->find_first(list, (linked_list_match_t)match_a, &x, a) == SUCCESS);
+ ck_assert(list->find_first(list, find_a, &x, a));
ck_assert(a == x);
- ck_assert(list->find_first(list, (linked_list_match_t)match_b, &x, b) == NOT_FOUND);
+ ck_assert(!list->find_first(list, find_b, &x, b));
ck_assert(a == x);
x = NULL;
- ck_assert(list->find_first(list, (linked_list_match_t)match_a_b, &x, a, b) == SUCCESS);
+ ck_assert(list->find_first(list, find_a_b, &x, a, b));
ck_assert(a == x);
list->insert_last(list, b);
- ck_assert(list->find_first(list, (linked_list_match_t)match_a, &x, a) == SUCCESS);
+ ck_assert(list->find_first(list, find_a, &x, a));
ck_assert(a == x);
- ck_assert(list->find_first(list, (linked_list_match_t)match_b, &x, b) == SUCCESS);
+ ck_assert(list->find_first(list, find_b, &x, b));
ck_assert(b == x);
x = NULL;
- ck_assert(list->find_first(list, (linked_list_match_t)match_a_b, &x, a, b) == SUCCESS);
+ ck_assert(list->find_first(list, find_a_b, &x, a, b));
ck_assert(a == x);
}
END_TEST
+CALLBACK(find_args, bool,
+ void *item, va_list args)
+{
+ uint64_t d, e;
+ level_t c;
+ int *a, b;
+
+ VA_ARGS_VGET(args, a, b, c, d, e);
+ ck_assert_int_eq(*a, 1);
+ ck_assert_int_eq(b, 2);
+ ck_assert_int_eq(c, LEVEL_PRIVATE);
+ ck_assert_int_eq(d, UINT64_MAX);
+ ck_assert_int_eq(e, UINT64_MAX-1);
+ return item == a;
+}
+
+START_TEST(test_find_callback_args)
+{
+ int a = 1, b = 2, *x;
+ uint64_t d = UINT64_MAX;
+
+ list->insert_last(list, &a);
+ ck_assert(list->find_first(list, find_args, (void**)&x, &a, b,
+ LEVEL_PRIVATE, d, UINT64_MAX-1));
+ ck_assert_int_eq(a, *x);
+}
+END_TEST
+
/*******************************************************************************
* invoke
*/
@@ -464,6 +514,7 @@ Suite *linked_list_suite_create()
tcase_add_checked_fixture(tc, setup_list, teardown_list);
tcase_add_test(tc, test_find);
tcase_add_test(tc, test_find_callback);
+ tcase_add_test(tc, test_find_callback_args);
suite_add_tcase(s, tc);
tc = tcase_create("invoke");