1#!/bin/sh
2#
| 1#!/bin/sh
2#
|
3# $FreeBSD: head/etc/rc.d/random 273872 2014-10-30 21:21:53Z markm $
| 3# $FreeBSD: head/etc/rc.d/random 273957 2014-11-02 01:47:27Z des $
|
4#
5
6# PROVIDE: random
7# REQUIRE: FILESYSTEMS
8# BEFORE: netif
9# KEYWORD: nojail shutdown
10
11. /etc/rc.subr
12
13name="random"
14start_cmd="random_start"
15stop_cmd="random_stop"
16
17extra_commands="saveseed"
18saveseed_cmd="${name}_stop"
19
| 4#
5
6# PROVIDE: random
7# REQUIRE: FILESYSTEMS
8# BEFORE: netif
9# KEYWORD: nojail shutdown
10
11. /etc/rc.subr
12
13name="random"
14start_cmd="random_start"
15stop_cmd="random_stop"
16
17extra_commands="saveseed"
18saveseed_cmd="${name}_stop"
19
|
| 20save_dev_random()
21{
22 for f ; do
23 if :>>"$f" ; then
24 debug "saving entropy to $f"
25 dd if=/dev/random of="$f" bs=4096 count=1 2>/dev/null
26 fi
27 done
28}
29
|
20feed_dev_random()
21{
| 30feed_dev_random()
31{
|
22 if [ -f "${1}" -a -r "${1}" -a -s "${1}" ]; then
23 cat "${1}" | dd of=/dev/random bs=8k 2>/dev/null
24 fi
| 32 for f ; do
33 if [ -f "$f" -a -r "$f" -a -s "$f" ] ; then
34 if dd if="$f" of=/dev/random bs=4096 2>/dev/null ; then
35 debug "entropy read from $f"
36 rm -f "$f"
37 fi
38 fi
39 done
|
25}
26
27random_start()
28{
| 40}
41
42random_start()
43{
|
| 44 echo -n 'Feeding entropy:'
45
46 if [ ! -w /dev/random ] ; then
47 warn "/dev/random is not writeable"
48 return 1
49 fi
50
|
29 # Reseed /dev/random with previously stored entropy.
| 51 # Reseed /dev/random with previously stored entropy.
|
30 case ${entropy_dir} in
| 52 case ${entropy_dir:=/var/db/entropy} in
|
31 [Nn][Oo])
32 ;;
33 *)
| 53 [Nn][Oo])
54 ;;
55 *)
|
34 entropy_dir=${entropy_dir:-/var/db/entropy}
35 if [ -d "${entropy_dir}" ]; then
36 if [ -w /dev/random ]; then
37 for seedfile in ${entropy_dir}/*; do
38 feed_dev_random "${seedfile}"
39 done
40 fi
| 56 if [ -d "${entropy_dir}" ] ; then
57 feed_dev_random "${entropy_dir}"/*
|
41 fi
42 ;;
43 esac
44
| 58 fi
59 ;;
60 esac
61
|
45 case ${entropy_file} in
| 62 case ${entropy_file:=/entropy} in
|
46 [Nn][Oo] | '')
47 ;;
48 *)
| 63 [Nn][Oo] | '')
64 ;;
65 *)
|
49 if [ -w /dev/random ]; then
50 feed_dev_random "${entropy_file}"
51 feed_dev_random /var/db/entropy-file
52 fi
| 66 feed_dev_random "${entropy_file}" /var/db/entropy-file
67 save_dev_random "${entropy_file}"
|
53 ;;
54 esac
| 68 ;;
69 esac
|
| 70
71 echo '.'
|
55}
56
57random_stop()
58{
59 # Write some entropy so when the machine reboots /dev/random
60 # can be reseeded
61 #
| 72}
73
74random_stop()
75{
76 # Write some entropy so when the machine reboots /dev/random
77 # can be reseeded
78 #
|
62 case ${entropy_file} in
| 79 case ${entropy_file:=/entropy} in
|
63 [Nn][Oo] | '')
64 ;;
65 *)
66 echo -n 'Writing entropy file:'
67 rm -f ${entropy_file} 2> /dev/null
68 oumask=`umask`
69 umask 077
70 if touch ${entropy_file} 2> /dev/null; then
--- 26 unchanged lines hidden --- | 80 [Nn][Oo] | '')
81 ;;
82 *)
83 echo -n 'Writing entropy file:'
84 rm -f ${entropy_file} 2> /dev/null
85 oumask=`umask`
86 umask 077
87 if touch ${entropy_file} 2> /dev/null; then
--- 26 unchanged lines hidden --- |