7
"receive buffer" -> "plain text buffer" [label="decrypt in-place (no copy)" style=dashed];
8
"plain text buffer" -> "disk cache" [label="move buffer reference (no copy)" style=dashed]
13
"socket kernel buffer";
17
"socket kernel buffer" -> "receive buffer" [label="read() on socket (copy)"];
18
"disk cache" -> "kernel page cache" [label="write() to file (copy)"]