work around fetch problem for nftables 0.8

Signed-off-by: Paul Healy <lmiphay@gmail.com>

9 files changed, 589 insertions, 0 deletions

diff --git a/net-firewall/nftables/Manifest b/net-firewall/nftables/Manifest
new file mode 100644
index 0000000..39a8e04
--- /dev/null
+++ b/net-firewall/nftables/Manifest
@@ -0,0 +1,9 @@
+AUX libexec/nftables-mk.sh 1071 BLAKE2B 0377d7ddbf11a8e897050a715b1313db95ba5f19832d882357f6083bb7a890a2fdf1d97a9b3730ad341f58539655b22989b18b29358645eb5b4d597e800b382a SHA512 4e2901de1d8d9488939bc052bd3f6362cba1855138e0577630db4bc1d9e352d9ab0a54e3c5c8bf0daecf56b9471f445eb9770879ea29b7e7961a576d65f49647
+AUX libexec/nftables.sh 3643 BLAKE2B 83818eb88db2d30c58b348e12b5c5baf7599f4e301ac12455a70f1c98e369e4febab3020ddb1c5b83e6d3777b3a98bd30a5baf73d90ac00e1278d88fc1565b8b SHA512 efc9b4f9520c78b6248f16bd5708669872e8abf949f6f4b81182f331f8532dfeaae2df648e8878e9b5cbd66c0259daab71035ea922754807654b2b3bc86b4352
+AUX nftables-mk.confd 899 BLAKE2B f4c3d82fbae87fb0d755af786a98db591b6a667cf33660ba9275ada2e6417fad1899a7f29762f23c112fc5c9e178bc7590c3b2ba26617853c3577917bd7d3edf SHA512 505ed05674a04367f1a3d5cf6447596ad1c3b2e9c920697f12f58a20d94c2a39b0041bb4911678511c4548566a69d964661d4afc3e7e27997943b875f204c602
+AUX nftables-mk.init 2090 BLAKE2B 62f56586ca4ba0acbd3ac41f4904041d625388771bbafc32833055a5f3c00f251e1d9a04bb41dd672f33d13a0825f7e4470a30d7e874df1abd41508148ef42b0 SHA512 819b2d60b42207cb70d95b700557e873fe18c5f6e8437683240beb317f773cf8e18755086e24652a9bcff49c6f96af8cd9e3f3b62c9f433779eff4e3f3935197
+AUX nftables.confd 655 BLAKE2B 5512be1edd43e270941de3d9b66fda69e4afd7c7e6e970b232a044c2fd64f8e50b9b55a4fe670174c3eabf3d176ee0158c1043baec4b76b0802e7e97bc862fcf SHA512 8370abcdc89fcd9da5dc7d1620be6afb4633b8bcd0a8a120b464cc1a7e1fab6f34956c293da3f6d3cbe1f7a2e03038fd0c94a614137ae5657d29ffdb5f3fa144
+AUX nftables.init 3069 BLAKE2B 68c6b2b81995bd909c00cc3527f891f04d0dd30532cd821c89b59fc7e3ea0dff0e98d767cee2c00a5462023fdf6f59e813dec7063768a34187f2404377e498f7 SHA512 ca761be0440945b21d5b002468baffb3299d0a3ac244aa895734dfdfaf442e7a73b757bcda99d958582064411d1b80b2cbcb4eb532bb219b4df407c9ed892661
+AUX systemd/nftables-restore.service 394 BLAKE2B 1c1f358eb2eff789e68c051098c971f11a8df6621c3c919e30a1ec1213f6db822c390609c01827fe9fc75c540effa3e3a7b6f93bd24e16ea19841bbfaab796ed SHA512 18da6a770bb3e94fd6b2c9e6f033450aaff9fe886c8846f780d08a21e2fc884ac078652743b50b3d4ea8c9500f92d272bdd27e2881e438c2b223d40816c100a0
+DIST nftables-0.8.tar.bz2 552345 BLAKE2B a810d1c0f8bf0dc728acd65a51b6ee4aede663a20681871d838b93a285fa0f062638a6d508dee850d21c6fcf3147d035f461360dbd470e1305fd612a1e0a0fcd SHA512 63614d982c7c8a72f6c287b6a026a901994d161573daf490eba4013e7ac4184c371ab49323830f7b0a980b850aae45becb7fa55aa876ce705a1b44f20124caf4
+EBUILD nftables-0.8-r4.ebuild 1945 BLAKE2B 92a7306e258c0fffc545ae24d217d74b4af6cc8fb8f78fe6a1d20ceb82b92b292c1c22b634cb2741fdbc34cc6e539a2714dac11c75ce6a754d66432e2a3e1bb0 SHA512 625f281497422e6b21accfaac312f825ac56e4cdcf8feab5298d1c478c1e7099f4402e234ba3062b8f08d31a7cfff52e0de86718ee6bb85b02a5168949c05f26
diff --git a/net-firewall/nftables/files/libexec/nftables-mk.sh b/net-firewall/nftables/files/libexec/nftables-mk.sh
new file mode 100644
index 0000000..b3d7db6
--- /dev/null
+++ b/net-firewall/nftables/files/libexec/nftables-mk.sh
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+main() {
+	local NFTABLES_SAVE=${2:-'/var/lib/nftables/rules-save'}
+	case "$1" in
+		"check")
+			nft -c -f "${NFTABLES_SAVE}"
+		;;
+		"clear")
+			nft flush ruleset
+		;;
+		"list")
+			nft ${SAVE_OPTIONS} list ruleset
+		;;
+		"load")
+			# We use an include because cat fails with long rulesets see #675188
+			printf 'flush ruleset\ninclude "%s"\n' "${NFTABLES_SAVE}" | nft -f -
+		;;
+		"panic")
+			panic hard | nft -f -
+		;;
+		"soft_panic")
+			panic soft | nft -f -
+		;;
+		"store")
+			local tmp_save="${NFTABLES_SAVE}.tmp"
+			umask 600;
+			(
+				printf '#!/sbin/nft -f\nflush ruleset\n'
+				nft ${SAVE_OPTIONS} list ruleset
+			) > "$tmp_save" && mv ${tmp_save} ${NFTABLES_SAVE}
+		;;
+	esac
+}
+
+panic() {
+	local erule;
+	[ "$1" = soft ] && erule="ct state established,related accept;" || erule="";
+	cat <<EOF
+flush ruleset
+table inet filter {
+	chain input {
+		type filter hook input priority 0;
+		$erule
+		drop
+	}
+	chain forward {
+		type filter hook forward priority 0;
+		drop
+	}
+	chain output {
+		type filter hook output priority 0;
+		$erule
+		drop
+	}
+}
+EOF
+}
+
+main "$@"
diff --git a/net-firewall/nftables/files/libexec/nftables.sh b/net-firewall/nftables/files/libexec/nftables.sh
new file mode 100755
index 0000000..cc55f85
--- /dev/null
+++ b/net-firewall/nftables/files/libexec/nftables.sh
@@ -0,0 +1,149 @@
+#! /bin/sh
+
+main() {
+    local NFTABLES_SAVE=${2:-'/var/lib/nftables/rules-save'}
+    local retval
+    case "$1" in
+        "clear")
+            if ! use_legacy; then
+                nft flush ruleset
+            else
+                clear_legacy
+            fi
+            retval=$?
+        ;;
+        "list")
+            if ! use_legacy; then
+                nft list ruleset
+            else
+                list_legacy
+            fi
+            retval=$?
+        ;;
+        "load")
+            nft -f ${NFTABLES_SAVE}
+            retval=$?
+        ;;
+        "store")
+            local tmp_save="${NFTABLES_SAVE}.tmp"
+            if ! use_legacy; then
+                nft ${SAVE_OPTIONS} list ruleset > ${tmp_save}
+            else
+                save_legacy ${tmp_save}
+            fi
+            retval=$?
+            if [ ${retval} ]; then
+                mv ${tmp_save} ${NFTABLES_SAVE}
+            fi
+        ;;
+    esac
+    return ${retval}
+}
+
+clear_legacy() {
+    local l3f line table chain first_line
+
+    first_line=1
+    if manualwalk; then
+        for l3f in $(getfamilies); do
+            nft list tables ${l3f} | while read line; do
+                table=$(echo ${line} | sed "s/table[ \t]*//")
+                deletetable ${l3f} ${table}
+            done
+        done
+    else
+        nft list tables | while read line; do
+            l3f=$(echo ${line} | cut -d ' ' -f2)
+            table=$(echo ${line} | cut -d ' ' -f3)
+            deletetable ${l3f} ${table}
+        done
+    fi
+}
+
+list_legacy() {
+    local l3f
+
+    if manualwalk; then
+        for l3f in $(getfamilies); do
+            nft list tables ${l3f} | while read line; do
+                line=$(echo ${line} | sed "s/table/table ${l3f}/")
+                echo "$(nft list ${line})"
+            done
+        done
+    else
+        nft list tables | while read line; do
+            echo "$(nft list ${line})"
+        done
+    fi
+}
+
+save_legacy() {
+    tmp_save=$1
+    touch "${tmp_save}"
+    if manualwalk; then
+        for l3f in $(getfamilies); do
+            nft list tables ${l3f} | while read line; do
+                line=$(echo ${line} | sed "s/table/table ${l3f}/")
+                nft ${SAVE_OPTIONS} list ${line} >> ${tmp_save}
+            done
+        done
+    else
+        nft list tables | while read line; do
+            nft ${SAVE_OPTIONS} list ${line} >> "${tmp_save}"
+        done
+    fi
+}
+
+use_legacy() {
+    local major_ver minor_ver
+
+    major_ver=$(uname -r | cut -d '.' -f1)
+    minor_ver=$(uname -r | cut -d '.' -f2)
+
+    [ $major_ver -ge 4 -o $major_ver -eq 3 -a $minor_ver -ge 18 ] && return 1
+    return 0
+}
+
+CHECK_TABLE_NAME="GENTOO_CHECK_TABLE"
+
+getfamilies() {
+    local l3f families
+
+    for l3f in ip arp ip6 bridge inet; do
+        if nft create table ${l3f} ${CHECK_TABLE_NAME} > /dev/null 2>&1; then
+            families="${families}${l3f} "
+            nft delete table ${l3f} ${CHECK_TABLE_NAME}
+        fi
+    done
+    echo ${families}
+}
+
+manualwalk() {
+    local result l3f=`getfamilies | cut -d ' ' -f1`
+
+    nft create table ${l3f} ${CHECK_TABLE_NAME}
+    nft list tables | read line
+    if [ $(echo $line | wc -w) -lt 3 ]; then
+        result=0
+    fi
+    result=1
+    nft delete table ${l3f} ${CHECK_TABLE_NAME}
+
+    return $result
+}
+
+deletetable() {
+    # family is $1
+    # table name is $2
+    nft flush table $1 $2
+    nft list table $1 $2 | while read l; do
+        chain=$(echo $l | grep -o 'chain [^[:space:]]\+' | cut -d ' ' -f2)
+        if [ -n "${chain}" ]; then
+            nft flush chain $1 $2 ${chain}
+            nft delete chain $1 $2 ${chain}
+        fi
+    done
+    nft delete table $1 $2
+}
+
+main "$@"
diff --git a/net-firewall/nftables/files/nftables-mk.confd b/net-firewall/nftables/files/nftables-mk.confd
new file mode 100644
index 0000000..5cda240
--- /dev/null
+++ b/net-firewall/nftables/files/nftables-mk.confd
@@ -0,0 +1,26 @@
+# /etc/conf.d/nftables
+
+# Location in which nftables initscript will save set rules on
+# service shutdown
+NFTABLES_SAVE="/var/lib/nftables/rules-save"
+
+# Options to pass to nft on save
+SAVE_OPTIONS="-n"
+
+# Save state on stopping nftables
+SAVE_ON_STOP="yes"
+
+# Only for OpenRC systems.
+# Set to "hard" or "soft" to panic when stopping instead of
+# clearing the rules
+# Soft panic loads a ruleset dropping any new or invalid connections
+# Hard panic loads a ruleset dropping all traffic
+PANIC_ON_STOP=""
+
+# If you need to log nftables messages as soon as nftables starts,
+# AND your logger does NOT depend on the network, then you may wish
+# to uncomment the next line.
+# If your logger depends on the network, and you uncomment this line
+# you will create an unresolvable circular dependency during startup.
+# After commenting or uncommenting this line, you must run 'rc-update -u'.
+#rc_use="logger"
diff --git a/net-firewall/nftables/files/nftables-mk.init b/net-firewall/nftables/files/nftables-mk.init
new file mode 100644
index 0000000..f7e3dce
--- /dev/null
+++ b/net-firewall/nftables/files/nftables-mk.init
@@ -0,0 +1,104 @@
+#!/sbin/openrc-run
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+extra_commands="check clear list panic save soft_panic"
+extra_started_commands="reload"
+
+depend() {
+	need localmount #434774
+	before net
+}
+
+checkkernel() {
+	if ! /sbin/nft list ruleset >/dev/null 2>/dev/null ; then
+		eerror "Your kernel lacks nftables support, please load"
+		eerror "appropriate modules and try again."
+		return 1
+	fi
+	return 0
+}
+
+checkconfig() {
+	if [ -z "${NFTABLES_SAVE}" -o ! -f "${NFTABLES_SAVE}" ] ; then
+		eerror "Not starting nftables. First create some rules then run:"
+		eerror "/etc/init.d/${SVCNAME} save"
+		return 1
+	fi
+	return 0
+}
+
+start_pre() {
+	checkconfig || return 1
+	checkkernel || return 1
+	check || return 1
+}
+
+start() {
+	ebegin "Loading ${SVCNAME} state and starting firewall"
+	/usr/libexec/nftables/nftables.sh load "${NFTABLES_SAVE}"
+	eend $?
+}
+
+stop() {
+	if [ "${SAVE_ON_STOP}" = "yes" ] ; then
+		save || return 1
+	fi
+
+	ebegin "Stopping firewall"
+	if [ "${PANIC_ON_STOP}" = "hard" ]; then
+		/usr/libexec/nftables/nftables.sh panic
+	elif [ "${PANIC_ON_STOP}" = "soft" ]; then
+		/usr/libexec/nftables/nftables.sh soft_panic
+	else
+		/usr/libexec/nftables/nftables.sh clear
+	fi
+	eend $?
+}
+
+reload() {
+	start_pre || return 1
+	start
+}
+
+clear() {
+	ebegin "Clearing rules"
+	/usr/libexec/nftables/nftables.sh clear
+	eend $?
+}
+
+list() {
+	/usr/libexec/nftables/nftables.sh list
+}
+
+check() {
+	ebegin "Checking rules"
+	/usr/libexec/nftables/nftables.sh check "${NFTABLES_SAVE}"
+	eend $?
+}
+
+save() {
+	ebegin "Saving ${SVCNAME} state"
+	checkpath -q -d "$(dirname "${NFTABLES_SAVE}")"
+	checkpath -q -m 0600 -f "${NFTABLES_SAVE}"
+	/usr/libexec/nftables/nftables.sh store "${NFTABLES_SAVE}"
+	eend $?
+}
+
+panic() {
+	if service_started ${SVCNAME}; then
+		rc-service ${SVCNAME} zap
+	fi
+	ebegin "Dropping all packets"
+	/usr/libexec/nftables/nftables.sh panic
+	eend $?
+}
+
+soft_panic() {
+	if service_started ${SVCNAME}; then
+		rc-service ${SVCNAME} zap
+	fi
+	ebegin "Dropping new connections"
+	/usr/libexec/nftables/nftables.sh soft_panic
+	eend $?
+}
diff --git a/net-firewall/nftables/files/nftables.confd b/net-firewall/nftables/files/nftables.confd
new file mode 100644
index 0000000..e83a4b9
--- /dev/null
+++ b/net-firewall/nftables/files/nftables.confd
@@ -0,0 +1,19 @@
+# /etc/conf.d/nftables
+
+# Location in which nftables initscript will save set rules on 
+# service shutdown
+NFTABLES_SAVE="/var/lib/nftables/rules-save"
+
+# Options to pass to nft on save
+SAVE_OPTIONS="-n"
+
+# Save state on stopping nftables
+SAVE_ON_STOP="yes"
+
+# If you need to log nftables messages as soon as nftables starts,
+# AND your logger does NOT depend on the network, then you may wish
+# to uncomment the next line.
+# If your logger depends on the network, and you uncomment this line
+# you will create an unresolvable circular dependency during startup.
+# After commenting or uncommenting this line, you must run 'rc-update -u'.
+#rc_use="logger"
diff --git a/net-firewall/nftables/files/nftables.init b/net-firewall/nftables/files/nftables.init
new file mode 100644
index 0000000..cf4ab8b
--- /dev/null
+++ b/net-firewall/nftables/files/nftables.init
@@ -0,0 +1,124 @@
+#!/sbin/openrc-run
+# Copyright 2014-2017 Nicholas Vinson
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+extra_commands="clear list panic save"
+extra_started_commands="reload"
+depend() {
+    need localmount #434774
+    before net
+}
+
+start_pre() {
+    checkkernel || return 1
+    checkconfig || return 1
+    return 0
+}
+
+clear() {
+    /usr/libexec/nftables/nftables.sh clear || return 1
+    return 0
+}
+
+list() {
+    /usr/libexec/nftables/nftables.sh list || return 1
+    return 0
+}
+
+panic() {
+    checkkernel || return 1
+    if service_started ${RC_SVCNAME}; then
+        rc-service ${RC_SVCNAME} stop
+    fi
+
+    ebegin "Dropping all packets"
+    clear
+    if nft create table ip filter >/dev/null 2>&1; then
+	nft -f /dev/stdin <<-EOF
+	    table ip filter {
+	                    chain input {
+	                                    type filter hook input priority 0;
+	                                    drop
+	                    }
+	                    chain forward {
+	                                    type filter hook forward priority 0;
+	                                    drop
+	                    }
+	                    chain output {
+	                                    type filter hook output priority 0;
+	                                    drop
+	                    }
+	    }
+	EOF
+    fi
+    if nft create table ip6 filter >/dev/null 2>&1; then
+	nft -f /dev/stdin <<-EOF
+	    table ip6 filter {
+	                    chain input {
+	                                    type filter hook input priority 0;
+	                                    drop
+	                    }
+	                    chain forward {
+	                                    type filter hook forward priority 0;
+	                                    drop
+	                    }
+	                    chain output {
+	                                    type filter hook output priority 0;
+	                                    drop
+	                    }
+	    }
+	EOF
+    fi
+}
+
+reload() {
+    checkkernel || return 1
+    ebegin "Flushing firewall"
+    clear
+    start
+}
+
+save() {
+    ebegin "Saving nftables state"
+    checkpath -q -d "$(dirname "${NFTABLES_SAVE}")"
+    checkpath -q -m 0600 -f "${NFTABLES_SAVE}"
+    export SAVE_OPTIONS
+    /usr/libexec/nftables/nftables.sh store ${NFTABLES_SAVE}
+    return $?
+}
+
+start() {
+    ebegin "Loading nftables state and starting firewall"
+    clear
+    /usr/libexec/nftables/nftables.sh load ${NFTABLES_SAVE}
+    eend $?
+}
+
+stop() {
+    if yesno ${SAVE_ON_STOP:-yes}; then
+        save || return 1
+    fi
+
+    ebegin "Stopping firewall"
+    clear
+    eend $?
+}
+
+checkconfig() {
+    if [ ! -f ${NFTABLES_SAVE} ]; then
+        eerror "Not starting nftables.  First create some rules then run:"
+        eerror "rc-service nftables save"
+        return 1
+    fi
+    return 0
+}
+
+checkkernel() {
+    if ! nft list tables >/dev/null 2>&1; then
+        eerror "Your kernel lacks nftables support, please load"
+        eerror "appropriate modules and try again."
+        return 1
+    fi
+    return 0
+}
diff --git a/net-firewall/nftables/files/systemd/nftables-restore.service b/net-firewall/nftables/files/systemd/nftables-restore.service
new file mode 100644
index 0000000..4b68b0a
--- /dev/null
+++ b/net-firewall/nftables/files/systemd/nftables-restore.service
@@ -0,0 +1,14 @@
+[Unit]
+Description=Store and restore nftables firewall rules
+ConditionPathExists=/var/lib/nftables/rules-save
+Before=network-pre.target
+Wants=network-pre.target
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/usr/libexec/nftables/nftables.sh load /var/lib/nftables/rules-save
+ExecStop=/usr/libexec/nftables/nftables.sh store /var/lib/nftables/rules-save
+
+[Install]
+WantedBy=basic.target
diff --git a/net-firewall/nftables/nftables-0.8-r4.ebuild b/net-firewall/nftables/nftables-0.8-r4.ebuild
new file mode 100644
index 0000000..5e10fa5
--- /dev/null
+++ b/net-firewall/nftables/nftables-0.8-r4.ebuild
@@ -0,0 +1,84 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit autotools linux-info systemd
+
+DESCRIPTION="Linux kernel (3.13+) firewall, NAT and packet mangling tools"
+HOMEPAGE="https://netfilter.org/projects/nftables/"
+SRC_URI="http://ftp.netfilter.org/pub/nftables/nftables-0.8.tar.bz2"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="amd64 arm ia64 x86"
+IUSE="debug doc +gmp +readline"
+
+RDEPEND=">=net-libs/libmnl-1.0.3:0=
+	gmp? ( dev-libs/gmp:0= )
+	readline? ( sys-libs/readline:0= )
+	>=net-libs/libnftnl-1.0.8:0="
+
+DEPEND="${RDEPEND}
+	>=app-text/docbook2X-0.8.8-r4
+	doc? ( >=app-text/dblatex-0.3.7 )
+	sys-devel/bison
+	sys-devel/flex
+	virtual/pkgconfig"
+
+S="${WORKDIR}/v${PV}"
+
+pkg_setup() {
+	if kernel_is ge 3 13; then
+		CONFIG_CHECK="~NF_TABLES"
+		linux-info_pkg_setup
+	else
+		eerror "This package requires kernel version 3.13 or newer to work properly."
+	fi
+}
+
+src_prepare() {
+	default
+	eautoreconf
+}
+
+src_configure() {
+	local myeconfargs=(
+		--sbindir="${EPREFIX}"/sbin
+		$(use_enable doc pdf-doc)
+		$(use_enable debug)
+		$(use_with readline cli)
+		$(use_with !gmp mini_gmp)
+	)
+	econf "${myeconfargs[@]}"
+}
+
+src_install() {
+	default
+
+	dodir /usr/libexec/${PN}
+	exeinto /usr/libexec/${PN}
+	doexe "${FILESDIR}"/libexec/${PN}.sh
+
+	newconfd "${FILESDIR}"/${PN}.confd ${PN}
+	newinitd "${FILESDIR}"/${PN}.init ${PN}
+	keepdir /var/lib/nftables
+
+	systemd_dounit "${FILESDIR}"/systemd/${PN}-restore.service
+	systemd_enable_service basic.target ${PN}-restore.service
+}
+
+pkg_postinst() {
+	local save_file
+	save_file="${EROOT%/}/var/lib/nftables/rules-save"
+
+	# In order for the nftables-restore systemd service to start
+	# the save_file must exist.
+	if [[ ! -f ${save_file} ]]; then
+		touch ${save_file}
+	fi
+
+	elog "If you are creating firewall rules before the next system restart "
+	elog "the nftables-restore service must be manually started in order to "
+	elog "save those rules on shutdown."
+}