Run weston with dedicated 'display' user and group

 * Create a user/group display
 * Allow weston to start without mandatory root user
 * start weston-terminal for each user

Bug-AGL: SPEC-546

Change-Id: Id50acdbf5f7c07d5e0440575d42998b8819b5547
Signed-off-by: Ronan Le Martret <ronan.lemartret@iot.bzh>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/9135
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-boot-test: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
Reviewed-by: Dominig ar Foll <dominig.arfoll@fridu.net>
Reviewed-by: José Bollo <jobol@nonadev.net>
Reviewed-by: Stéphane Desneux <stephane.desneux@iot.bzh>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>

6 files changed, 89 insertions, 6 deletions

diff --git a/meta-app-framework/recipes-config/agl-login-manager/agl-login-manager_0.1.bb b/meta-app-framework/recipes-config/agl-login-manager/agl-login-manager_0.1.bb
new file mode 100644
index 000000000..c86838268
--- /dev/null
+++ b/meta-app-framework/recipes-config/agl-login-manager/agl-login-manager_0.1.bb
@@ -0,0 +1,47 @@
+SUMMARY = "AGL Login manager"
+
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+
+inherit agl-graphical
+
+SRC_URI += " \
+    file://user-config.service \
+    file://user-config.path \
+    file://agl-user-session.pamd \
+    file://agl-user-session@.service \
+"
+
+LOGIN_USER ??="agl-driver agl-passenger"
+
+do_install_append() {
+
+    install -d ${D}${sysconfdir}/pam.d/
+    install -m 0644 ${WORKDIR}/agl-user-session.pamd ${D}${sysconfdir}/pam.d/agl-user-session
+
+    install -d ${D}${systemd_user_unitdir}
+    install -d ${D}${systemd_user_unitdir}/default.target.wants
+    install -m 0644 ${WORKDIR}/user-config.service ${D}${systemd_user_unitdir}
+    install -m 0644 ${WORKDIR}/user-config.path ${D}${systemd_user_unitdir}
+
+    sed -e 's,@DISPLAY_XDG_RUNTIME_DIR@,${DISPLAY_XDG_RUNTIME_DIR},g' \
+        -i ${D}${systemd_user_unitdir}/user-config.service
+    sed -e 's,@DISPLAY_XDG_RUNTIME_DIR@,${DISPLAY_XDG_RUNTIME_DIR},g' \
+        -i ${D}${systemd_user_unitdir}/user-config.path
+
+    ln -sf ${systemd_user_unitdir}/user-config.path ${D}${systemd_user_unitdir}/default.target.wants
+
+    install -d ${D}${systemd_unitdir}/system/
+    install -d ${D}${systemd_unitdir}/system/multi-user.target.wants/
+    install -m 0644 ${WORKDIR}/agl-user-session@.service ${D}${systemd_unitdir}/system/
+
+    for AGL_USER in ${LOGIN_USER};do
+        ln -sf ${systemd_system_unitdir}/agl-user-session@.service ${D}${systemd_unitdir}/system/multi-user.target.wants/agl-user-session@${AGL_USER}.service;
+    done
+}
+
+FILES_${PN} += "${sysconfdir}/pam.d/agl-user-session"
+FILES_${PN} += "${systemd_user_unitdir}/*"
+FILES_${PN} += "${libdir}/systemd/user/default.target.wants/*"
+FILES_${PN} += "${systemd_unitdir}/system/agl-user-session@.service"
+FILES_${PN} += "${systemd_unitdir}/system/multi-user.target.wants/*"
diff --git a/meta-app-framework/recipes-config/agl-login-manager/files/agl-user-session.pamd b/meta-app-framework/recipes-config/agl-login-manager/files/agl-user-session.pamd
new file mode 100644
index 000000000..462c3648b
--- /dev/null
+++ b/meta-app-framework/recipes-config/agl-login-manager/files/agl-user-session.pamd
@@ -0,0 +1,3 @@
+account  include common-account
+session  required pam_loginuid.so
+session  include common-session
diff --git a/meta-app-framework/recipes-config/agl-login-manager/files/agl-user-session@.service b/meta-app-framework/recipes-config/agl-login-manager/files/agl-user-session@.service
new file mode 100644
index 000000000..b128a40c8
--- /dev/null
+++ b/meta-app-framework/recipes-config/agl-login-manager/files/agl-user-session@.service
@@ -0,0 +1,18 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=User Manager for UID %i
+After=systemd-user-sessions.service
+
+[Service]
+User=%i
+PAMName=agl-user-session
+ExecStart=-/bin/sleep 2147483648
+KillMode=mixed
+Delegate=yes
+TasksMax=infinity
diff --git a/meta-app-framework/recipes-config/agl-login-manager/files/user-config.path b/meta-app-framework/recipes-config/agl-login-manager/files/user-config.path
new file mode 100644
index 000000000..07f61f646
--- /dev/null
+++ b/meta-app-framework/recipes-config/agl-login-manager/files/user-config.path
@@ -0,0 +1,8 @@
+[Unit]
+Description=AGL user config unit path
+
+[Path]
+PathExists=@DISPLAY_XDG_RUNTIME_DIR@/wayland-0
+
+[Install]
+WantedBy=default.target
diff --git a/meta-app-framework/recipes-config/agl-login-manager/files/user-config.service b/meta-app-framework/recipes-config/agl-login-manager/files/user-config.service
new file mode 100644
index 000000000..0bf37fb4b
--- /dev/null
+++ b/meta-app-framework/recipes-config/agl-login-manager/files/user-config.service
@@ -0,0 +1,8 @@
+[Unit]
+Description=AGL user config
+
+[Service]
+ExecStart=/bin/ln -sf @DISPLAY_XDG_RUNTIME_DIR@/wayland-0 %t/
+
+[Install]
+WantedBy=default.target
diff --git a/meta-app-framework/recipes-config/agl-users/agl-users_0.1.bb b/meta-app-framework/recipes-config/agl-users/agl-users_0.1.bb
index 832c51c99..f98888d28 100644
--- a/meta-app-framework/recipes-config/agl-users/agl-users_0.1.bb
+++ b/meta-app-framework/recipes-config/agl-users/agl-users_0.1.bb
@@ -7,15 +7,14 @@ DESCRIPTION = "This is a core framework component that\
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 
-
-SRC_URI = ""
-
 ALLOW_EMPTY_${PN} = "1"
 
 USERADD_PACKAGES = "${PN}"
 
+GROUPADD_PARAM_${PN} = " --system display ; --system weston-launch"
+
 USERADD_PARAM_${PN} = "\
-  -g users -d /home/agl-driver -m -K PASS_MAX_DAYS=-1 agl-driver ; \
-  -g users -d /home/agl-passenger -m -K PASS_MAX_DAYS=-1 agl-passenger \
+  -g users -G display -d /home/agl-driver -m -K PASS_MAX_DAYS=-1 agl-driver ; \
+  -g users -G display -d /home/agl-passenger -m -K PASS_MAX_DAYS=-1 agl-passenger ; \
+  --gid display --groups weston-launch,video,input --home-dir /run/platform/display --shell /bin/false --comment \"Display daemon\" --key PASS_MAX_DAYS=-1 display \
 "
-