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systemd: add network unit file

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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@kumunetworks.com>
[eric.le.bihan.dev@free.fr:
  - rebase
  - install service only if systemd-networkd is not selected]
Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Ivan Sergeev 2014-06-13 17:35:35 +02:00 committed by Thomas Petazzoni
parent 91fc913510
commit eb981cf80b
2 changed files with 33 additions and 0 deletions
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21
package/systemd/network.service Normal file
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@ -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

12
package/systemd/systemd.mk
View File

@ -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