Commit 1fe81f07 authored by Doug Kehn's avatar Doug Kehn Committed by Thomas Petazzoni
Browse files

package/unscd: new package 



A daemon which handles passwd, group and host lookups for running
programs and caches the results for the next query. This package is
intended to replace glibc nscd. Presently, glibc nscd is not installed
by Buildroot.

unscd depends on glibc because it relies on glibc function
__nss_disable_nscd.

nscd.conf is taken from glibc with unused configurations removed.

Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: default avatarDoug Kehn <rdkehn@yahoo.com>
Reviewed-by: default avatarArnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 73690cb9

package/Config.in

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@@ -1579,6 +1579,7 @@ if BR2_PACKAGE_BUSYBOX_SHOW_OTHERS 
	source "package/sysvinit/Config.in"

	source "package/tar/Config.in"

endif

	source "package/unscd/Config.in"

	source "package/util-linux/Config.in"

endmenu

package/unscd/Config.in

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config BR2_PACKAGE_UNSCD

	bool "unscd"

	depends on BR2_TOOLCHAIN_USES_GLIBC

	help

	  Micro Name Service Caching Daemon



	  A daemon which handles passwd, group and host lookups for

	  running programs and caches the results for the next query.

	  You only need this package if you are using slow Name Services

	  like LDAP, NIS or NIS+.



	  This particular NSCD is a complete rewrite of the GNU glibc

	  nscd which is a single threaded server process which offloads

	  all NSS lookups to worker children; cache hits are handled by

	  the parent, and only cache misses start worker children,

	  making the parent immune to resource leaks, hangs, and crashes

	  in NSS libraries.



	  It should mostly be a drop-in replacement for existing

	  installs using nscd.



	  http://busybox.net/~vda/unscd



comment "unscd needs an (e)glibc toolchain"

	depends on !BR2_TOOLCHAIN_USES_GLIBC

package/unscd/S46unscd

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#!/bin/sh



NAME="nscd"

DAEMON="/usr/sbin/${NAME}"



case "$1" in

start)

        printf "Starting ${NAME}: "

        start-stop-daemon -S -x ${DAEMON}

        [ $? -eq 0 ] && echo "OK" || echo "FAIL"

        ;;

stop)

        printf "Stopping ${NAME}: "

        start-stop-daemon -K -x ${DAEMON}

        [ $? -eq 0 ] && echo "OK" || echo "FAIL"

        ;;

restart|reload)

        $0 stop

        $0 start

        ;;

*)

        echo "Usage: $0 {start|stop|restart|reload}"

        exit 1

esac

package/unscd/nscd.conf

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# /etc/nscd.conf

#

# An example Name Service Cache config file.  This file is needed by nscd.

#

server-user unscd

debug-level 0



enable-cache            passwd  yes

positive-time-to-live   passwd  600

negative-time-to-live   passwd  20

suggested-size          passwd  1001

check-files             passwd  yes



enable-cache            group   yes

positive-time-to-live   group   3600

negative-time-to-live   group   60

suggested-size          group   1001

check-files             group   yes



# hosts caching is broken with gethostby* calls, hence is now disabled

# by default. Specifically, the caching does not obey DNS TTLs, and

# thus could lead to problems if the positive-time-to-live is

# significantly larger than the actual TTL.

#

# You should really use a caching nameserver instead of nscd for this

# sort of request. However, you can easily re-enable this by default.

enable-cache            hosts   no

positive-time-to-live   hosts   3600

negative-time-to-live   hosts   20

suggested-size          hosts   1001

check-files             hosts   yes



# unscd does not support services caching

package/unscd/unscd.hash

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# Locally computed:

sha256	4c1f83dcd120469fceef749050cb29fa666fa4666bd308dfe92e933a4c200d55	nscd-0.52.c