Insert entropy harvesting calls for network traffic. By

default, no entropy will be harvested.

2 files changed, 8 insertions, 0 deletions

diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c
index 94e0541..57baa21 100644
--- a/sys/net/if_ethersubr.c
+++ b/sys/net/if_ethersubr.c
@@ -46,6 +46,7 @@
 #include <sys/kernel.h>
 #include <sys/malloc.h>
 #include <sys/mbuf.h>
+#include <sys/random.h>
 #include <sys/socket.h>
 #include <sys/sockio.h>
 #include <sys/sysctl.h>
@@ -474,6 +475,9 @@ recvLocal:
 #endif
 	/* Continue with upper layer processing */
 	ether_demux(ifp, eh, m);
+	/* First chunk of an mbuf contains good junk */
+	if (harvest.ethernet)
+		random_harvest(m, 16, 3, 0, RANDOM_NET);
 }
 
 /*
diff --git a/sys/net/intrq.c b/sys/net/intrq.c
index d05176c..89f9159 100644
--- a/sys/net/intrq.c
+++ b/sys/net/intrq.c
@@ -28,6 +28,7 @@
 
 #include <sys/param.h>
 #include <sys/mbuf.h>
+#include <sys/random.h>
 #include <sys/socket.h>
 #include <sys/systm.h>
 #include <sys/time.h>
@@ -90,6 +91,9 @@ family_enqueue(family, m)
 				if (! IF_HANDOFF(queue[entry].q, m, NULL))
 					return ENOBUFS;
 				schednetisr(queue[entry].isr);
+				/* First chunk of an mbuf contains good junk */
+				if (harvest.point_to_point)
+					random_harvest(m, 16, 3, 0, RANDOM_NET);
 				return 0;
 			} else
 				break;