Add test for resumption with non-blocking I/O

programs/ssl/ssl_client2.c

@@ -990,7 +990,8 @@ int main( int argc, char *argv[] )
     ssl_set_dbg( &ssl, my_debug, stdout );
 
     if( opt.nbio == 2 )
-        ssl_set_bio_timeout( &ssl, &server_fd, my_send, my_recv, NULL, 0 );
+        ssl_set_bio_timeout( &ssl, &server_fd, my_send, my_recv, NULL,
+                             opt.read_timeout );
     else
         ssl_set_bio_timeout( &ssl, &server_fd, net_send, net_recv,
 #if defined(POLARSSL_HAVE_TIME)
@@ -1392,6 +1393,17 @@ reconnect:
             goto exit;
         }
 
+        if( opt.nbio > 0 )
+            ret = net_set_nonblock( server_fd );
+        else
+            ret = net_set_block( server_fd );
+        if( ret != 0 )
+        {
+            printf( " failed\n  ! net_set_(non)block() returned -0x%x\n\n",
+                    -ret );
+            goto exit;
+        }
+
         while( ( ret = ssl_handshake( &ssl ) ) != 0 )
         {
             if( ret != POLARSSL_ERR_NET_WANT_READ &&

tests/ssl-opt.sh

@@ -2318,6 +2318,20 @@ run_test    "DTLS proxy: 3d, min handshake, resumption" \
             -s "Extra-header:" \
             -c "HTTP/1.0 200 OK"
 
+needs_more_time 4
+run_test    "DTLS proxy: 3d, min handshake, resumption, nbio" \
+            -p "$P_PXY drop=5 delay=5 duplicate=5" \
+            "$P_SRV dtls=1 hs_timeout=250-10000 tickets=0 auth_mode=none \
+             psk=abc123 debug_level=3 nbio=2" \
+            "$P_CLI dtls=1 hs_timeout=250-10000 tickets=0 psk=abc123 \
+             debug_level=3 reconnect=1 read_timeout=1000 max_resend=10 \
+             force_ciphersuite=TLS-PSK-WITH-AES-128-CCM-8 nbio=2" \
+            0 \
+            -s "a session has been resumed" \
+            -c "a session has been resumed" \
+            -s "Extra-header:" \
+            -c "HTTP/1.0 200 OK"
+
 needs_more_time 4
 run_test    "DTLS proxy: 3d, min handshake, client-initiated renego" \
             -p "$P_PXY drop=5 delay=5 duplicate=5" \