12907-async-dtls.patch

diff --git a/examples/dtls-echo/dtls-client.c b/examples/dtls-echo/dtls-client.c
index baa5d9291..4f38df2ac 100644
--- a/examples/dtls-echo/dtls-client.c
+++ b/examples/dtls-echo/dtls-client.c
@@ -59,6 +59,9 @@ static int _events_handler(struct dtls_context_t *ctx,
     (void) ctx;
     (void) session;
     (void) level;
+    if (code == DTLS_EVENT_CONNECT) {
+        puts("EVENT CONNECT");
+    }
 
     if (code == DTLS_EVENT_CONNECTED) {
         dtls_connected = 1;
diff --git a/pkg/tinydtls/contrib/sock_dtls.c b/pkg/tinydtls/contrib/sock_dtls.c
index 5bd3f6bd5..9cc12c29b 100644
--- a/pkg/tinydtls/contrib/sock_dtls.c
+++ b/pkg/tinydtls/contrib/sock_dtls.c
@@ -109,7 +109,10 @@ static int _event(struct dtls_context_t *ctx, session_t *session,
     (void)session;
 
     sock_dtls_t *sock = dtls_get_app_data(ctx);
-    msg_t msg = { .type = code };
+    msg_t msg = {
+        .type = code,
+        .content.ptr = session,
+    };
 #ifdef ENABLE_DEBUG
     switch (code) {
         case DTLS_EVENT_CONNECT:
@@ -123,7 +126,9 @@ static int _event(struct dtls_context_t *ctx, session_t *session,
             break;
     }
 #endif  /* ENABLE_DEBUG */
-    mbox_put(&sock->mbox, &msg);
+    if (code != DTLS_EVENT_CONNECT) {
+        mbox_put(&sock->mbox, &msg);
+    }
 #ifdef SOCK_HAS_ASYNC
     if (sock->async_cb != NULL) {
         switch(code) {
@@ -132,7 +137,6 @@ static int _event(struct dtls_context_t *ctx, session_t *session,
                 break;
             case DTLS_EVENT_CONNECTED: {
                 dtls_peer_t *peer = dtls_get_peer(ctx, session);
-                DEBUG("sock_dtls: event connected\n");
                 if (peer->role == DTLS_SERVER) {
                     /* we are server so a client connected */
                     sock->async_cb(sock, SOCK_ASYNC_CONN_RDY,
@@ -473,6 +477,8 @@ ssize_t sock_dtls_recv(sock_dtls_t *sock, sock_dtls_session_t *remote,
         }
         else if (mbox_try_get(&sock->mbox, &msg) &&
                  msg.type == DTLS_EVENT_CONNECTED) {
+            memcpy(&remote->dtls_session, msg.content.ptr, sizeof(session_t));
+
             if (sock->async_cb) {
                 sock_async_flags_t flags = SOCK_ASYNC_CONN_RDY;