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Invalid IP addresses would be passed through as-is:
$ networkctl status wlp3s0:
● 2: wlp3s0
Link File: /usr/lib/systemd/network/99-default.link
Network File: /etc/systemd/network/wlp3s0.network
Type: wlan
State: routable (configured)
Path: pci-0000:03:00.0
Driver: iwlwifi
Vendor: Intel Corporation
Model: Centrino Advanced-N 6205 [Taylor Peak] (Centrino Advanced-N 6205 AGN)
HW Address: XXXXXXXXXX (Intel Corporate)
Address: 192.168.2.103
XXXXXXXXXXX
Gateway: 192.168.2.1 (Arcadyan Technology Corporation)
DNS: 127.0.0.5553
Instead verify that DNS= has a valid list of addresses when parsing configuration.
Fixes #4462.
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When systemd-networkd is run on the same IPv6 enabled interface where
radvd is announcing prefixes, a route is being set up pointing to the
interface address. As this will fail with an invalid argument error,
the link is marked as failed and the following message like the
following will appear in in the logs:
systemd-networkd[21459]: eth1: Could not set NDisc route or address: Invalid argument
systemd-networkd[21459]: eth1: Failed
Should the interface be required by systemd-networkd-wait-online,
network-online.target will wait until its timeout hits thereby
significantly delaying system startup.
The fix is to check whether the gateway address obtained from NDisc
messages is equal to any of the interface addresses on the same link
and not set the NDisc route in that case.
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Fixes #4371.
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Add a dbus object to represent dhcp leases and their raw options (i.e.
options 224-254).
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Add an "invocation ID" concept to the service manager
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This patch enables to configure
IFA_F_HOMEADDRESS
IFA_F_NODAD
IFA_F_MANAGETEMPADDR
IFA_F_NOPREFIXROUTE
IFA_F_MCAUTOJOIN
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This adds a new invocation ID concept to the service manager. The invocation ID
identifies each runtime cycle of a unit uniquely. A new randomized 128bit ID is
generated each time a unit moves from and inactive to an activating or active
state.
The primary usecase for this concept is to connect the runtime data PID 1
maintains about a service with the offline data the journal stores about it.
Previously we'd use the unit name plus start/stop times, which however is
highly racy since the journal will generally process log data after the service
already ended.
The "invocation ID" kinda matches the "boot ID" concept of the Linux kernel,
except that it applies to an individual unit instead of the whole system.
The invocation ID is passed to the activated processes as environment variable.
It is additionally stored as extended attribute on the cgroup of the unit. The
latter is used by journald to automatically retrieve it for each log logged
message and attach it to the log entry. The environment variable is very easily
accessible, even for unprivileged services. OTOH the extended attribute is only
accessible to privileged processes (this is because cgroupfs only supports the
"trusted." xattr namespace, not "user."). The environment variable may be
altered by services, the extended attribute may not be, hence is the better
choice for the journal.
Note that reading the invocation ID off the extended attribute from journald is
racy, similar to the way reading the unit name for a logging process is.
This patch adds APIs to read the invocation ID to sd-id128:
sd_id128_get_invocation() may be used in a similar fashion to
sd_id128_get_boot().
PID1's own logging is updated to always include the invocation ID when it logs
information about a unit.
A new bus call GetUnitByInvocationID() is added that allows retrieving a bus
path to a unit by its invocation ID. The bus path is built using the invocation
ID, thus providing a path for referring to a unit that is valid only for the
current runtime cycleof it.
Outlook for the future: should the kernel eventually allow passing of cgroup
information along AF_UNIX/SOCK_DGRAM messages via a unique cgroup id, then we
can alter the invocation ID to be generated as hash from that rather than
entirely randomly. This way we can derive the invocation race-freely from the
messages.
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This patch adds support to remote checksum checksum offload to VXLAN.
This patch adds RemoteCheckSumTx and RemoteCheckSumRx vxlan configuration
to enable remote checksum offload for transmit and receive on the VXLAN tunnel.
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[BridgeFDB] did not apply to bridge ports so far. This patch adds the proper
handling. In case of a bridge interface the correct flag NTF_MASTER is now set
in the netlink call. FDB MAC addresses are now applied in
link_enter_set_addresses to make sure the link is setup.
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While an interface is still being processed by udev, it is in state "pending",
instead of "unmanaged". We must not flush device configuration then.
Further fixes commit 3104883ddc24 after commit c436d55397.
Fixes #4186
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Network file dropins
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If Kind is not specied, the message about "Invalid Kind" was misleading.
If Kind was specified in an invalid way, we get a message in the parsing
phase anyway. Reword the message to cover both cases better.
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This way we don't have to create a nulstr just to unpack it in a moment.
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In preparation for adding a version which takes a strv.
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Fixes #3655.
[zj: Fix the tests.]
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1. add support for kind vcan
2. fixup indention netlink-types.c, networkd-netdev.c
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This patch allows to configure AgeingTimeSec, Priority and DefaultPVID for
bridge interfaces.
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Flushing foreign configuration for unmanaged interfaces is outright
evil, especially when it's a regular occurence with Wi-Fi.
Fixes: 3104883ddc24 "networkd: remove route if carrier is lost"
Ref: #3831
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functions (#4019)
Prevents discard-qualifiers warnings when the passed variable was const
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Fixes #3922.
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The default route table used by sd-netlink (and iproute2) is
RT_TABLE_MAIN, not RT_TABLE_DEFAULT. Ensure networkd has the same idea.
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link_messages is used during link configuration to advance the link
state machine through SETTING_ADDRESSES -> SETTING_ROUTES -> CONFIGURED.
If a route expires in the middle of this, it is possible for
link_messages to hit zero inside route_expire_callback, rather than in
route_handler or address_handler where it would trigger the next step in
configuration. Should this happen, the link will not complete
configuration, and it may not have its static routes configured.
Since route_expire_callback does not need to do anything once the
expired route has been removed from the kernel, it is safe to simply not
account for the netlink request.
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If no result parameter is provided, do not attempt to write the
found/newly-created route to it. This is presently not an issue as all
callers currently provide a non-NULL result parameter, however we should
do this for symmetry with address_add and future code robustness.
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since link_dirty itself calls manager_dirty no need to
call it separately .
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fixes #3881
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Fixes #3890.
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bridge vlan configuration was applied even if it wasn't configured.
fixes #3876
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https://lists.freedesktop.org/archives/systemd-devel/2016-August/037268.html
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Fixes #3669.
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In this patch "enabled" and "disabled" is used exclusively, but "enable" and
"disable" forms are need for the following patch.
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We should look that the kind is invalid rather than pointer is NULL.
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Do not allocate objects of dynamic and potentially large size on the stack
to avoid both clang compilation errors and unpredictable runtime behavior
on exotic platforms. Use the heap for that instead.
While at it, refactor the code a bit. Access 's->domain' via
NDISC_DNSSL_DOMAIN(), and refrain from allocating 'x' independently, but
rather reuse 's' if we're dealing with a new entry to the set.
Fixes #3717
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