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We were using a space more often than not, and this way is
codified in CODING_STYLE.
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Introduce BindCarrier= to indicate the set of links that determine if
the current link should be brought UP or DOWN.
[tomegun: add a bit to commit message]
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This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
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Too generic name.
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Match{Name,OrginalName,Type,Driver,Path} can now take a space-separated glob of matches.
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This allows the admin to set the host-specific part of IPv6 addresses, but still
receive the prefix via SLAAC.
.network file snippet:
[Network]
IPv6Token=::12
gives:
$ ip token
token ::12 dev eth0
This closes https://bugs.freedesktop.org/show_bug.cgi?id=81177.
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This allows both IPv4 and IPv6 link-local addresses to be enabled or disabled. By default
we still enable IPv6LL and disable IPv4LL. The old config option is kept for backwards
compatibility, but removed from the documentation.
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This patch introduces ipv6 gre and gretap.
test:
ip6gre.netdev:
[NetDev]
Name=ip6gretap
Kind=ip6gretap
[Tunnel]
Local=2a00:ffde:4567:edde::4987
Remote=2001:473:fece:cafe::5179
ip6gre.network:
[Match]
Name=eno16777736
[Network]
Tunnel=ip6gretap
ip link
6: ip6gre@eno16777736: <POINTOPOINT,NOARP> mtu 1448 qdisc noop state
DOWN mode DEFAULT group default
link/gre6 2a:00:ff:de:45:67:ed:de:00:00:00:00:00:00:49:87 peer
20:01:04:73:fe:ce:ca:fe:00:00:00:00:00:00:51:79
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This patch enables networkd to create IP6 tunnels
example conf:
ipip6.netdev:
[NetDev]
Name=ipip6-tunnel
Kind=ip6tnl
[Tunnel]
Mode=ip4ipv6
Local=2a00:ffde:4567:edde::4987
Remote=2001:473:fece:cafe::5179
ipip6.network
[Match]
Name=wlan0
[Network]
Tunnel=ipip6-tunnel
23: ipip6-tunnel@wlan0: <POINTOPOINT,NOARP> mtu 1452 qdisc noop state
DOWN mode DEFAULT group default
link/tunnel6 2a00:ffde:4567:edde::4987 peer 2001:473:fece:cafe::5179
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This patch introdeces gretap to networkd
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This introduces am AddressFamilyBoolean type that works more or less
like a booleaan, but can optionally turn on/off things for ipv4 and ipv6
independently. THis also ports the DHCP field over to it.
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This adds two new settings to networkd's .network files:
IPForwarding=yes and IPMasquerade=yes. The former controls the
"forwarding" sysctl setting of the interface, thus controlling whether
IP forwarding shall be enabled on the specific interface. The latter
controls whether a firewall rule shall be installed that exposes traffic
coming from the interface as coming from the local host to all other
interfaces.
This also enables both options by default for container network
interfaces, thus making "systemd-nspawn --network-veth" have network
connectivity out of the box.
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Let's stick to generic sections that describe the general technology,
instead of specific per-object sections, unless we really have a reason
to do that otherwise.
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This file won't exist on kernels earlier than 3.17.
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This allows the default link settings (set in .link files) to be overridden per Network. Only MTU and MACAddress is supported for now.
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This has been requested repeatedly, so let's give it a go. We explicitly do not allow matching
on names that have already been changed (from a previous udev run, or otherwise), and matching
on unpredictable names (ethX) is discouraged (but not currently disallowed).
We also currently allow:
[Match]
Name=veth0
[Link]
Name=my-name0
SomeOtherSetting=true
Which means that the link file will be applied the first time it is invoked, but
not on subsequent invocations, which may be surprising.
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This patch add support to specify path cost of the
bridge port to be configured via conf file.
Exampe: conf
file: br.netdev
[NetDev]
Name=br-test
Kind=bridge
file: br.network
[Match]
Name=em1
[Network]
Bridge=br-test
[BridgePort]
Cost=332
bridge link
2: em1 state UP : <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master
br-test state disabled priority 32 cost 332
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Using:
find . -name '*.[ch]' | while read f; do perl -i.mmm -e \
'local $/;
local $_=<>;
s/(if\s*\([^\n]+\))\s*{\n(\s*)(log_[a-z_]*_errno\(\s*([->a-zA-Z_]+)\s*,[^;]+);\s*return\s+\g4;\s+}/\1\n\2return \3;/msg;
print;'
$f
done
And a couple of manual whitespace fixups.
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It corrrectly handles both positive and negative errno values.
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As a followup to 086891e5c1 "log: add an "error" parameter to all
low-level logging calls and intrdouce log_error_errno() as log calls
that take error numbers", use sed to convert the simple cases to use
the new macros:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\("(.*)%s"(.*), strerror\(-([a-zA-Z_]+)\)\);/log_\1_errno(-\4, "\2%m"\3);/'
Multi-line log_*() invocations are not covered.
And we also should add log_unit_*_errno().
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It is redundant to store 'hash' and 'compare' function pointers in
struct Hashmap separately. The functions always comprise a pair.
Store a single pointer to struct hash_ops instead.
systemd keeps hundreds of hashmaps, so this saves a little bit of
memory.
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This lets the routing metric for links to be specified per-network,
still defaulting to DHCP_ROUTE_METRIC (1024) if unspecified. Hopefully
this helps with multiple interfaces configured via DHCP.
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Elements must be removed from the hashtable before they are freed.
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Also, simplify things a bit and make sure we don't forget looking at one
of the entries.
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This allows the search/routing domanis to be specified per link/network and be passed
on to resolved.
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Most routers will send garbage, so make this opt-in only.
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This causes machines without connectivity to hang where they would otherwise fail. Keep it
opt-in for now, but consider whether we sholud just drop it.
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This is necessary for non-ipv4ll hosts to communicate with ipv4ll-only hosts on the same link. Defaults
to being enabled, but can be opted out.
See: <http://avahi.org/wiki/AvahiAutoipd#Routes>
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In the state files, do not distinguish where the various entries came from
(static or DHCP), but include them all in the same list.
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Similarly to how unit types work.
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If we want to avoid reading a totally empty file, it seems better
to check after we have opened the file, not before.
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Special care is needed so that we get an error message if the
file failed to parse, but not when it is missing. To avoid duplicating
the same error check in every caller, add an additional 'warn' boolean
to tell config_parse whether a message should be issued.
This makes things both shorter and more robust wrt. to error reporting.
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