ecryptfs-utils: add new recipe

eCryptfs is a stacked cryptographic filesystem that ships
in Linux kernel versions 2.6.19 and above. This package
provides the mount helper and supporting libraries to
perform key management and mount functions.

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

3 files changed, 137 insertions, 0 deletions

diff --git a/recipes-security/ecryptfs-utils/ecryptfs-utils_111.bb b/recipes-security/ecryptfs-utils/ecryptfs-utils_111.bb
new file mode 100644
index 0000000..f55b0c3
--- /dev/null
+++ b/recipes-security/ecryptfs-utils/ecryptfs-utils_111.bb
@@ -0,0 +1,63 @@
+SUMMARY = "The eCryptfs mount helper and support libraries"
+DESCRIPTION = "eCryptfs is a stacked cryptographic filesystem \
+    that ships in Linux kernel versions 2.6.19 and above. This \
+    package provides the mount helper and supporting libraries \
+    to perform key management and mount functions."
+HOMEPAGE = "https://launchpad.net/ecryptfs"
+SECTION = "base"
+
+LICENSE = "GPL-2.0"
+LIC_FILES_CHKSUM = "file://COPYING;md5=8ca43cbc842c2336e835926c2166c28b"
+
+DEPENDS = "keyutils libgcrypt intltool-native glib-2.0-native"
+
+SRC_URI = "\
+    https://launchpad.net/ecryptfs/trunk/${PV}/+download/${BPN}_${PV}.orig.tar.gz \
+    file://ecryptfs-utils-CVE-2016-6224.patch \
+    file://ecryptfs.service \
+    "
+
+SRC_URI[md5sum] = "83513228984f671930752c3518cac6fd"
+SRC_URI[sha256sum] = "112cb3e37e81a1ecd8e39516725dec0ce55c5f3df6284e0f4cc0f118750a987f"
+
+inherit autotools pkgconfig systemd
+
+SYSTEMD_PACKAGES = "${PN}"
+SYSTEMD_SERVICE_${PN} = "ecryptfs.service"
+
+EXTRA_OECONF = "\
+    --libdir=${base_libdir} \
+    --disable-pywrap \
+    --disable-nls \
+    "
+
+PACKAGECONFIG ??= "nss \
+    ${@bb.utils.filter('DISTRO_FEATURES', 'pam', d)} \
+    "
+PACKAGECONFIG[nss] = "--enable-nss,--disable-nss,nss,"
+PACKAGECONFIG[openssl] = "--enable-openssl,--disable-openssl,openssl,"
+PACKAGECONFIG[pam] = "--enable-pam,--disable-pam,libpam,"
+
+do_configure_prepend() {
+    export NSS_CFLAGS="-I${STAGING_INCDIR}/nspr4 -I${STAGING_INCDIR}/nss3"
+    export NSS_LIBS="-L${STAGING_BASELIBDIR} -lssl3 -lsmime3 -lnss3 -lsoftokn3 -lnssutil3"
+    export KEYUTILS_CFLAGS="-I${STAGING_INCDIR}"
+    export KEYUTILS_LIBS="-L${STAGING_LIBDIR} -lkeyutils"
+}
+
+do_install_append() {
+    chmod 4755 ${D}${base_sbindir}/mount.ecryptfs_private
+    mkdir -p ${D}/${libdir}
+    mv ${D}/${base_libdir}/pkgconfig ${D}/${libdir}
+    sed -i -e 's:-I${STAGING_INCDIR}::' \
+           -e 's:-L${STAGING_LIBDIR}::' ${D}/${libdir}/pkgconfig/libecryptfs.pc
+    sed -i -e "s: ${base_sbindir}/cryptsetup: ${sbindir}/cryptsetup:" ${D}${bindir}/ecryptfs-setup-swap
+    if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
+        install -D -m 0644 ${WORKDIR}/ecryptfs.service ${D}${systemd_system_unitdir}/ecryptfs.service
+    fi
+}
+
+FILES_${PN} += "${base_libdir}/security/* ${base_libdir}/ecryptfs/*"
+
+RDEPENDS_${PN} += "cryptsetup"
+RRECOMMENDS_${PN} = "gettext-runtime"
diff --git a/recipes-security/ecryptfs-utils/files/ecryptfs-utils-CVE-2016-6224.patch b/recipes-security/ecryptfs-utils/files/ecryptfs-utils-CVE-2016-6224.patch
new file mode 100644
index 0000000..4252f97
--- /dev/null
+++ b/recipes-security/ecryptfs-utils/files/ecryptfs-utils-CVE-2016-6224.patch
@@ -0,0 +1,65 @@
+From 558a513ba3100ea5190de1a24cf1fed663367765 Mon Sep 17 00:00:00 2001
+From: Li Zhou <li.zhou@windriver.com>
+Date: Mon, 5 Sep 2016 10:28:08 +0800
+Subject: [PATCH] ecryptfs-utils: CVE-2016-6224
+
+src/utils/ecryptfs-setup-swap: Prevent unencrypted swap partitions from
+being automatically enabled by systemd. This bug affected GPT partitioned
+NVMe/MMC drives and resulted in the swap partition being used without
+encryption. It also resulted in a usability issue in that users were
+erroneously prompted to enter a pass-phrase to unlock their swap partition
+at boot. (LP: #1597154)
+
+the patch comes from:
+https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-6224
+https://bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/882
+
+Upstream-Status: backport
+
+Signed-off-by: Li Zhou <li.zhou@windriver.com>
+---
+ ChangeLog                     |  9 +++++++++
+ src/utils/ecryptfs-setup-swap | 10 ++++++++--
+ 2 files changed, 17 insertions(+), 2 deletions(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index d255a94..2c9c73e 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -1,3 +1,12 @@
++ecryptfs-utils-112
++  [ Jason Gerard DeRose ]
++  * src/utils/ecryptfs-setup-swap: Prevent unencrypted swap partitions from
++    being automatically enabled by systemd. This bug affected GPT partitioned
++    NVMe/MMC drives and resulted in the swap partition being used without
++    encryption. It also resulted in a usability issue in that users were
++    erroneously prompted to enter a pass-phrase to unlock their swap partition
++    at boot. (LP: #1597154)
++
+ ecryptfs-utils-74
+   [ Michal Hlavinka ]
+   * Changes for RH/Fedora release
+diff --git a/src/utils/ecryptfs-setup-swap b/src/utils/ecryptfs-setup-swap
+index 41cf18a..e4785d7 100755
+--- a/src/utils/ecryptfs-setup-swap
++++ b/src/utils/ecryptfs-setup-swap
+@@ -166,8 +166,14 @@ for swap in $swaps; do
+        # If this is a GPT partition, mark it as no-auto mounting, to avoid
+        # auto-activating it on boot
+        if [ "$(blkid -p -s PART_ENTRY_SCHEME -o value "$swap")" = "gpt" ]; then
+-               drive="${swap%[0-9]*}"
+-               partno="${swap#$drive}"
++               # Correctly handle NVMe/MMC drives, as well as any similar physical
++               # block device that follow the "/dev/foo0p1" pattern (LP: #1597154)
++               if echo "$swap" | grep -qE "^/dev/.+[0-9]+p[0-9]+$"; then
++                       drive=$(echo "$swap" | sed "s:\(.\+[0-9]\)p[0-9]\+:\1:")
++               else
++                       drive=$(echo "$swap" | sed "s:\(.\+[^0-9]\)[0-9]\+:\1:")
++               fi
++               partno=$(echo "$swap" | sed "s:.\+[^0-9]\([0-9]\+\):\1:")
+                if [ -b "$drive" ]; then
+                        if printf "x\np\n" | fdisk "$drive" | grep -q "^$swap .* GUID:.*\b63\b"; then
+                                echo "$swap is already marked as no-auto"
+-- 
+1.9.1
+
diff --git a/recipes-security/ecryptfs-utils/files/ecryptfs.service b/recipes-security/ecryptfs-utils/files/ecryptfs.service
new file mode 100644
index 0000000..c23a03a
--- /dev/null
+++ b/recipes-security/ecryptfs-utils/files/ecryptfs.service
@@ -0,0 +1,9 @@
+[Unit]
+Description=A userspace daemon that runs as the user perform file operations under the eCryptfs mount point
+After=udev.service
+
+[Service]
+ExecStart=/usr/bin/ecryptfsd -f
+
+[Install]
+WantedBy=multi-user.target