changeset 688:650c41a4909a

Add a few more files in /proc for Linux
author Matt Johnston <matt@ucc.asn.au>
date Sat, 30 Jun 2012 22:12:28 +0800
parents 167fdc091c05
children c3de235d9506
files random.c
diffstat 1 files changed, 9 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- 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();