implemented mutex locking the recommendations list

diff --git a/src/libcharon/plugins/tnccs_20/tnccs_20.c b/src/libcharon/plugins/tnccs_20/tnccs_20.c
index 075e08c..72a5288 100644 (file)
--- a/src/libcharon/plugins/tnccs_20/tnccs_20.c
+++ b/src/libcharon/plugins/tnccs_20/tnccs_20.c
@@ -17,6 +17,7 @@
 
 #include <debug.h>
 #include <daemon.h>
+#include <threading/mutex.h>
 #include <tnc/tncif.h>
 #include <tnc/tncifimv_names.h>
 #include <tnc/tnccs/tnccs.h>
@@ -74,6 +75,11 @@ struct private_tnccs_20_t {
         * Action Recommendations and Evaluations Results provided by IMVs 
         */
        linked_list_t *recommendations;
+
+       /**
+        * Mutex locking the recommendations list
+        */
+       mutex_t *recommendation_mutex;
 };
 
 METHOD(tnccs_t, send_message, void,
@@ -100,6 +106,7 @@ METHOD(tnccs_t, provide_recommendation, void,
        DBG2(DBG_TNC, "IMV %u provides recommendation '%N' and evaluation '%N'",
                 id, action_recommendation_names, rec, evaluation_result_names, eval);
 
+       this->recommendation_mutex->lock(this->recommendation_mutex);
        enumerator = this->recommendations->create_enumerator(this->recommendations);
        while (enumerator->enumerate(enumerator, &entry))
        {
@@ -121,6 +128,7 @@ METHOD(tnccs_t, provide_recommendation, void,
        /* Assign provided action recommendation and evaluation result */
        entry->rec = rec;
        entry->eval = eval;
+       this->recommendation_mutex->unlock(this->recommendation_mutex);
 }
 
 METHOD(tls_t, process, status_t,
@@ -227,6 +235,7 @@ METHOD(tls_t, destroy, void,
 {
        charon->tnccs->remove_connection(charon->tnccs, this->connection_id);
        this->recommendations->destroy_function(this->recommendations, free);
+       this->recommendation_mutex->destroy(this->recommendation_mutex);
        free(this->batch.ptr);
        free(this);
 }
@@ -250,6 +259,7 @@ tls_t *tnccs_20_create(bool is_server)
                },
                .is_server = is_server,
                .recommendations = linked_list_create(),
+               .recommendation_mutex = mutex_create(MUTEX_TYPE_DEFAULT),
        );
 
        return &this->public;