7 # REQUIRE: initrandom FILESYSTEMS
9 # KEYWORD: nojail shutdown
14 start_cmd="random_start"
15 stop_cmd="random_stop"
17 extra_commands="saveseed"
18 saveseed_cmd="${name}_stop"
22 if [ -f "${1}" -a -r "${1}" -a -s "${1}" ]; then
23 cat "${1}" | dd of=/dev/random bs=8k 2>/dev/null
29 # Reseed /dev/random with previously stored entropy.
30 case ${entropy_dir} in
34 entropy_dir=${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}"
45 case ${entropy_file} in
49 if [ -w /dev/random ]; then
50 feed_dev_random "${entropy_file}"
51 feed_dev_random /var/db/entropy-file
59 # Write some entropy so when the machine reboots /dev/random
62 case ${entropy_file} in
66 echo -n 'Writing entropy file:'
67 rm -f ${entropy_file} 2> /dev/null
70 if touch ${entropy_file} 2> /dev/null; then
71 entropy_file_confirmed="${entropy_file}"
73 # Try this as a reasonable alternative for read-only
74 # roots, diskless workstations, etc.
75 rm -f /var/db/entropy-file 2> /dev/null
76 if touch /var/db/entropy-file 2> /dev/null; then
77 entropy_file_confirmed=/var/db/entropy-file
80 case ${entropy_file_confirmed} in
82 warn 'write failed (read-only fs?)'
85 dd if=/dev/random of=${entropy_file_confirmed} \
86 bs=4096 count=1 2> /dev/null