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# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=ppp
pkgver=2.4.8
pkgrel=2
pkgdesc="A daemon which implements the PPP protocol for dial-up networking"
url="https://ppp.samba.org/"
arch="all"
license="BSD and LGPL-2.0-or-later and GPL-2.0-or-later and Public-Domain"
makedepends="bsd-compat-headers linux-headers"
subpackages="$pkgname-doc $pkgname-dev $pkgname-chat $pkgname-radius
	    $pkgname-atm $pkgname-pppoe $pkgname-l2tp $pkgname-winbind
	    $pkgname-passprompt $pkgname-passwordfd $pkgname-minconn
	    $pkgname-openrc $pkgname-daemon
	    "

# for compatibility reasons the 'ppp' package is an empty meta package
# that pulls in all except -dev and -doc subpackages
depends="$pkgname-chat $pkgname-radius
	    $pkgname-atm $pkgname-pppoe $pkgname-l2tp $pkgname-winbind
	    $pkgname-passprompt $pkgname-passwordfd $pkgname-minconn
	    $pkgname-daemon
	    "

source="https://github.com/paulusmack/ppp/archive/ppp-$pkgver.tar.gz
	musl-fix-headers.patch
	fix-paths.patch
	0011-build-sys-don-t-put-connect-errors-log-to-etc-ppp.patch
	fix-pppd-magic.h.patch
	fix-pppd-pppoe.h.patch
	radius-Prevent-buffer-overflow-in-rc_mksid.patch
	fix-bound-check-eap.patch
	pppd-Ignore-received-EAP-messages-when-not-doing-EAP.patch
	ip-down
	ip-up
	pppd.initd"

builddir="$srcdir"/$pkgname-$pkgname-$pkgver

# secfixes:
#   2.4.8-r1:
#     - CVE-2020-8597

build() {

	# fix CFLAGS
	# -D_GNU_SOURCE is needed for IPv6 to work apparently
	export CFLAGS="$CFLAGS -D_GNU_SOURCE"
	sed -i "s:-O2 -pipe -Wall -g:${CFLAGS}:" pppd/Makefile.linux
	sed -i "s:-g -O2:${CFLAGS}:" pppd/plugins/Makefile.linux
	sed -i "s:-O2:${CFLAGS}:" pppstats/Makefile.linux
	sed -i "s:-O2 -g -pipe:${CFLAGS}:" chat/Makefile.linux
	sed -i "s:-O:${CFLAGS}:" pppdump/Makefile.linux
	# enable active filter
	sed -i "s:^#FILTER=y:FILTER=y:" pppd/Makefile.linux
	# enable ipv6 support
	sed -i "s:^#HAVE_INET6=y:HAVE_INET6=y:" pppd/Makefile.linux
	# Enable Microsoft proprietary Callback Control Protocol
	sed -i "s:^#CBCP=y:CBCP=y:" pppd/Makefile.linux
	sed -i "s:^#CBCP=y:CBCP=y:" pppd/Makefile.linux
	sed -i "s:^#USE_CRYPT=y:USE_CRYPT=y:" pppd/Makefile.linux
	./configure \
		--build=$CBUILD \
		--host=$CHOST \
		--prefix=/usr \
		--localstatedir=/var
	make COPTS="$CFLAGS"
}

package() {
	make INSTROOT="$pkgdir" install
	install -Dm644 include/net/ppp_defs.h \
		"$pkgdir"/usr/include/net/ppp_defs.h
	install -D -m755 "$srcdir"/ip-up "$pkgdir"/etc/ppp/ip-up
	install -D -m755 "$srcdir"/ip-down "$pkgdir"/etc/ppp/ip-down
	install -D -m755 "$srcdir"/pppd.initd "$pkgdir"/etc/init.d/pppd
	install -D -m644 etc.ppp/options "$pkgdir"/etc/ppp/options
	install -D -m600 etc.ppp/pap-secrets "$pkgdir"/etc/ppp/pap-secrets
	install -D -m600 etc.ppp/chap-secrets "$pkgdir"/etc/ppp/chap-secrets

	# busybox ifup/ifdown needs pon/poff
	install -D -m644 scripts/pon.1 "$pkgdir"/usr/share/man/man1/pon.1
	install -D -m755 scripts/pon "$pkgdir"/usr/bin/pon
	install -D -m755 scripts/poff "$pkgdir"/usr/bin/poff

	install -d "$pkgdir"/usr/share/doc/ppp
	for i in scripts/*; do
		case $i in
		pon|poff|*.1) continue;
		esac
		if [ -f "$i" ]; then
			cp $i "$pkgdir"/usr/share/doc/ppp/
		fi
	done
	install -d "$pkgdir"/etc/ppp/peers
}

atm() {
	pkgdesc="pppd plugin to implement PPPoATM protocol"
	depends="ppp-daemon"
	_mv usr/lib/pppd/$pkgver/pppoatm.so 755
}

minconn() {
	pkgdesc="pppd plugin to implement a 'minconnect' option"
	depends="ppp-daemon"
	_mv usr/lib/pppd/$pkgver/minconn.so 755
}

winbind() {
	pkgdesc="WINBIND plugin for pppd"
	depends="ppp-daemon"
	_mv usr/lib/pppd/$pkgver/winbind.so 755
}


passprompt() {
	pkgdesc="pppd plugin to invoke an external PAP password prompter"
	depends="ppp-daemon"
	_mv usr/lib/pppd/$pkgver/passprompt.so 755
}

passwordfd() {
	pkgdesc="pppd plugin let's you pass the password via a file descriptor"
	depends="ppp-daemon"
	_mv usr/lib/pppd/$pkgver/passwordfd.so 755
}

chat() {
	pkgdesc="a program for automatic ppp session establishment"
	depends=
	_mv usr/sbin/chat 755
}

l2tp() {
	pkgdesc="pppd plugin to implement PPPoL2TP protocol"
	depends="ppp-daemon"
	_mv usr/lib/pppd/$pkgver/openl2tp.so 755
	_mv usr/lib/pppd/$pkgver/pppol2tp.so 755
}

pppoe() {
	pkgdesc="pppd plugin for kernel-mode PPPoE on Linux"
	depends="ppp-daemon"
	_mv usr/lib/pppd/$pkgver/rp-pppoe.so 755
	_mv usr/sbin/pppoe-discovery 755
}

radius() {
	pkgdesc="RADIUS plugin for pppd"
	depends="ppp-daemon"
	_mv usr/lib/pppd/$pkgver/radius.so 755
	_mv usr/lib/pppd/$pkgver/radattr.so 755
	_mv usr/lib/pppd/$pkgver/radrealms.so 755
	install -d "$subpkgdir"/etc/radiusclient
	cp -r "$builddir"/pppd/plugins/radius/etc/* "$subpkgdir"/etc/radiusclient
	mv "$subpkgdir"/etc/radiusclient/radiusclient.conf.in "$subpkgdir"/etc/radiusclient/radiusclient.conf
	sed -i "s:@pkgsysconfdir@:/etc/radiusclient:g" "$subpkgdir"/etc/radiusclient/radiusclient.conf
	sed -i "s:@sbindir@:/usr/sbin:g" "$subpkgdir"/etc/radiusclient/radiusclient.conf
}

_mv() {
	install -m $2 -D "$pkgdir"/$1 "$subpkgdir"/$1
	rm "$pkgdir"/$1
}

daemon() {
	pkgdesc="A daemon which implements the PPP protocol"
	depends=
	mkdir -p "$subpkgdir"
	mv "$pkgdir"/* "$subpkgdir"/
}

sha512sums="a99b3b6c7bd80cd133bda4e29d33c793a76f3b67e1f8db774547e88932ce29564fad390a4f51d3fe30a75e006499b95000b042ae0f64cd360548426f8091a478  ppp-2.4.8.tar.gz
55642ce365a7cf7dda05366ac6e74f6badba3cc7bc980760e0a2ee7bfa768ea033c4a3880b3387e0787d719742698f627c624f890d68800344d31c0309c0374d  musl-fix-headers.patch
8384afb992a98a7f97b484866e6aa1b1de51e901d7837f84f7ce2beba6815591450fab43957f03b65804424c4940c59640a9cd878979240a171aa77427e9c4ff  fix-paths.patch
b490971d03fef4de66b61123f80a0087270bcb88466ae8ed98ea9a08b35d4c7c46b2dadd304e2970a4206bb5760a14370d7e3873de6240119d88e927ecef840c  0011-build-sys-don-t-put-connect-errors-log-to-etc-ppp.patch
d1067defff79d6c9f67121a9214e41a1bcca1e3b8a345ad905d223fdb8835142bad7cc3b556a3eca509ddf51cf808741773f31f4dca74e834b612a15854a5e6b  fix-pppd-magic.h.patch
d76237c82af0a3ed7ede9e814d6849b94221f1fd15e4ee68cadd33a308a32d87d635acd14f84508c9e38a10ad0a9e96ce391044da37e217d11b89a4f6631abf7  fix-pppd-pppoe.h.patch
d175085eaa93ccf8ade7be4f9818efe353017da7cec41d9312ad2c6685e3763834aff76d673e9d2bb0b44336f926537569ddb86a6035ec33ab8b6a7de2340132  radius-Prevent-buffer-overflow-in-rc_mksid.patch
ba0c062f93400008ddf47897ac2ab6a2f5017bc7f4167d1a93dd3a5c04068a922490eb4082b0da80f0c3aea6c87fdfbca3568548724a0abc148588ab86a6df32  fix-bound-check-eap.patch
ce1bf3298f3f99a7de643bd070cb0e7e7b1dd9621926637ffc93fd2ef552781424ce9a68c88de6eb25dc2593d543e8e329eccc2d00982bde2493e8efb7903051  pppd-Ignore-received-EAP-messages-when-not-doing-EAP.patch
160260bd2a788beaac395eadb38efbfd1e0e1a458fe151555acacf2c4f3a12381d644672c664f9793db6e3459a4f05a54e3ff6d407b0d37e8014b15bd0f11bcc  ip-down
8258c95a6b6e8e94d6001b5cd3a99bd3270f29ba0f2e5050a26c8d5f1b67eead8d039e71ce86a784d45e620047b0a2bb14b258d80a9ea62084ba588a4c2e2d84  ip-up
bd6f43588b037367ffdb57f5e331492dcaa5969003e219c2dc8b90e6be1aa407282ff6114b91d1379ebeff766983fa0622456520cc0ac592b4f0b1496acf21bf  pppd.initd"