[Buildroot] [PATCH] systemd: add network unit file
Eric Le Bihan
eric.le.bihan.dev at free.fr
Fri Jun 13 15:35:35 UTC 2014
From: Ivan Sergeev <vsergeev at kumunetworks.com>
Add and enable a systemd unit file to bring up or down network with ifup /
ifdown, analogous to the skeleton/etc/init.d/S40network init script.
Signed-off-by: Ivan Sergeev <vsergeev at kumunetworks.com>
[eric.le.bihan.dev at free.fr:
- rebase
- install service only if systemd-networkd is not selected]
Signed-off-by: Eric Le Bihan <eric.le.bihan.dev at free.fr>
---
package/systemd/network.service | 21 +++++++++++++++++++++
package/systemd/systemd.mk | 12 ++++++++++++
2 files changed, 33 insertions(+)
create mode 100644 package/systemd/network.service
diff --git a/package/systemd/network.service b/package/systemd/network.service
new file mode 100644
index 0000000..0d77bb8
--- /dev/null
+++ b/package/systemd/network.service
@@ -0,0 +1,21 @@
+[Unit]
+Description=Network Connectivity
+Wants=network.target
+Before=network.target
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+
+# lo is brought up earlier, which will cause the upcoming "ifup -a" to fail
+# with exit code 1, due to an "ip: RTNETLINK answers: File exists" error during
+# its "ip addr add ..." command, subsequently causing this unit to fail even
+# though it is a benign error. Flushing the lo address with the command below
+# before ifup prevents this failure.
+ExecStart=/sbin/ip addr flush dev lo
+
+ExecStart=/sbin/ifup -a
+ExecStop=/sbin/ifdown -a
+
+[Install]
+WantedBy=multi-user.target
diff --git a/package/systemd/systemd.mk b/package/systemd/systemd.mk
index 6de7887..f3874db 100644
--- a/package/systemd/systemd.mk
+++ b/package/systemd/systemd.mk
@@ -145,12 +145,24 @@ define SYSTEMD_SANITIZE_PATH_IN_UNITS
-exec $(SED) 's,$(HOST_DIR),,g' {} \;
endef
+define SYSTEMD_INSTALL_NETWORK_HOOK
+ $(INSTALL) -D -m 644 package/systemd/network.service \
+ $(TARGET_DIR)/etc/systemd/system/network.service
+ mkdir -p $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants
+ ln -fs ../network.service \
+ $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants/network.service
+endef
+
SYSTEMD_POST_INSTALL_TARGET_HOOKS += \
SYSTEMD_INSTALL_INIT_HOOK \
SYSTEMD_INSTALL_TTY_HOOK \
SYSTEMD_INSTALL_MACHINEID_HOOK \
SYSTEMD_SANITIZE_PATH_IN_UNITS
+ifeq ($(BR2_PACKAGE_SYSTEMD_NETWORKD),)
+SYSTEMD_POST_INSTALL_TARGET_HOOKS += SYSTEMD_INSTALL_NETWORK_HOOK
+endif
+
define SYSTEMD_USERS
systemd-journal -1 systemd-journal -1 * /var/log/journal - - Journal
systemd-journal-gateway -1 systemd-journal-gateway -1 * /var/log/journal - - Journal Gateway
--
1.7.10.4
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