From 87044318e9acb741e1b74767f30cc4ae802ed398 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Fri, 25 Mar 2022 21:37:44 -0600
Subject: Use seedrng for seeding the random number generator

The RNG can't actually be seeded from a shell script, due to the
reliance on ioctls. For this reason, the seedrng project provides a
basic script meant to be copy and pasted into projects like void-runit
and tweaked as needed: <https://git.zx2c4.com/seedrng/about/>.

This commit imports it into void-runit and wires up the init scripts to
call it. This also is a significant improvement over the current init
script, which fails to remove seed files that have already been used, or
to ratchet them forward.
---
 Makefile | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 877969b..08117ab 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,7 @@ all:
 	$(CC) $(CFLAGS) halt.c -o halt $(LDFLAGS)
 	$(CC) $(CFLAGS) pause.c -o pause $(LDFLAGS)
 	$(CC) $(CFLAGS) vlogger.c -o vlogger $(LDFLAGS)
+	$(CC) $(CFLAGS) seedrng.c -o seedrng $(LDFLAGS)
 
 install:
 	install -d ${DESTDIR}/${PREFIX}/sbin
@@ -13,6 +14,7 @@ install:
 	install -m755 vlogger ${DESTDIR}/${PREFIX}/sbin
 	install -m755 shutdown ${DESTDIR}/${PREFIX}/sbin/shutdown
 	install -m755 modules-load ${DESTDIR}/${PREFIX}/sbin/modules-load
+	install -m755 seedrng ${DESTDIR}/${PREFIX}/sbin/seedrng
 	install -m755 zzz ${DESTDIR}/${PREFIX}/sbin
 	ln -sf zzz ${DESTDIR}/${PREFIX}/sbin/ZZZ
 	ln -sf halt ${DESTDIR}/${PREFIX}/sbin/poweroff
-- 
cgit 1.4.1