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3d4048bd9f
lighttpd starts at priority 50, but promptly calls getrandom() on
initialization (li_rand_reseed() and li_rand_device_bytes() from
server_init()). If /dev/urandom (which getrandom() uses by default)
doesn't have sufficient entropy, this will block.
Since Openwrt runs the startup scripts serially, this can block
initialization indefinitely. I've seen 15-20 minutes typically.
Seeding the pool early on can quickly built sufficient entropy to
complete booting without blocking.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
(cherry picked from commit 901ef617c7)
27 lines
640 B
Bash
27 lines
640 B
Bash
#!/bin/sh /etc/rc.common
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# Copyright (C) 2011-2014 OpenWrt.org
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START=25
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USE_PROCD=1
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PROG=/sbin/rngd
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start_service() {
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local enabled=$(uci -q get system.@rngd[0].enabled)
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local precmd=$(uci -q get system.@rngd[0].precmd)
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local device=$(uci -q get system.@rngd[0].device)
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local watermark=$(uci -q get system.@rngd[0].fill_watermark)
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[ "$enabled" = "1" ] || return
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[ -z "$precmd" ] || ${precmd} ${device}
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[ -z "$device" ] || device="-r ${device}"
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[ -z "$watermark" ] || watermark="-W ${watermark}"
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procd_open_instance
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procd_set_param command "$PROG" -f ${device} ${watermark}
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procd_set_param stderr 1
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procd_close_instance
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}
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