# HG changeset patch
# User Matt Johnston <matt@ucc.asn.au>
# Date 1341065548 -28800
# Node ID 650c41a4909a27578a5533a597058ac6bce25496
# Parent  167fdc091c05429a3bc2a81e76c5b2b6ac381b7a
Add a few more files in /proc for Linux

diff -r 167fdc091c05 -r 650c41a4909a random.c
--- a/random.c	Fri Jun 29 23:19:43 2012 +0800
+++ b/random.c	Sat Jun 30 22:12:28 2012 +0800
@@ -205,10 +205,18 @@
 
 	/* A few other sources to fall back on. Add more here for other platforms */
 #ifdef __linux__
-	/* Seems to be a reasonable source of entropy from timers */
+	/* Seems to be a reasonable source of entropy from timers. Possibly hard
+	 * for even local attackers to reproduce */
 	process_file(&hs, "/proc/timer_list", 0, 0);
 	/* Might help on systems with wireless */
 	process_file(&hs, "/proc/interrupts", 0, 0);
+
+	/* Mostly network visible but useful in some situations */
+	process_file(&hs, "/proc/net/netstat", 0, 0);
+	process_file(&hs, "/proc/net/dev", 0, 0);
+	process_file(&hs, "/proc/net/tcp", 0, 0);
+	/* Also includes interface lo */
+	process_file(&hs, "/proc/net/rt_cache", 0, 0);
 #endif
 
 	pid = getpid();