From 6ba2b2b3845e49564ca5129ab335a414f50f0149 Mon Sep 17 00:00:00 2001 From: Matt Johnston Date: Sat, 30 Jun 2012 22:12:28 +0800 Subject: [PATCH] Add a few more files in /proc for Linux --- random.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/random.c b/random.c index 2cf5c74..f729ae2 100644 --- a/random.c +++ b/random.c @@ -205,10 +205,18 @@ void seedrandom() { /* 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();