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Commit Graph

647 Commits

Author SHA1 Message Date
Zbigniew Jędrzejewski-Szmek
477e73b531 networkd: fix memory leak in error path 2014-01-02 19:49:49 -05:00
Zbigniew Jędrzejewski-Szmek
7384fa923e networkd: do not deference null pointer in cleanup 2014-01-02 19:49:43 -05:00
Tom Gundersen
b1b532f58c networkd: dhcp - avoid null pointer dereference 2014-01-03 01:42:26 +01:00
Tom Gundersen
1746cf2ad7 networkd: add more asserts and ignore all events when link has failed 2014-01-03 01:42:26 +01:00
Tom Gundersen
06a6e59301 networkd: only track state of links we are managing
If a network is not (yet) set for a link, we do not care about its state (as we
anyway don't know what to do with it).
2014-01-02 15:56:10 +01:00
Tom Gundersen
449f755492 networkd: improve logging
Remove redundant messages, add some debugging ones and make wording more uniform.
2014-01-02 15:49:23 +01:00
Kay Sievers
be9326ca1d networkd: fix NULL pointer deref 2014-01-02 05:16:14 +01:00
Tom Gundersen
5eb036ca53 networkd: fix getting initial state
We were requesting the state and then ignoring it...
2014-01-02 01:43:05 +01:00
Tom Gundersen
f5be560181 networkd: add DHCPv4 support
This adds basic DHCPv4 support. Link-sense is enabled unconditionally,
but the plan is to make that configurable.

I tested this in a VM with lots of NICs and over wifi in the various
coffee shops I found this Christmas, but more testing would definitely
be appreciated.
2014-01-01 16:26:27 +01:00
Tom Gundersen
f048a16b46 networkd: distinguish between static and dynamic addresses/routes
Static addresses/routes are associated with a network. Dynamic
addresses/routes are associtade with links (as the corresponding network
may be shared by several links).
2014-01-01 16:23:00 +01:00
Tom Gundersen
407fe036a2 network: add support for dropping address 2014-01-01 15:12:50 +01:00
Lennart Poettering
e120204729 core,logind,networkd: check for udev device initialization via enumeration matches
Instead of checking each device after we got it, check wuth an
enumeration filter instead, to make it more efficient.
2013-12-18 18:21:28 +01:00
Lennart Poettering
bf5332d2bf core,logind,networkd: don't pick up devices from udev before they finished udev initialization
Managers shouldn't pick up the devices the manage before udev finished
initialization, hence check explicitly for that.
2013-12-18 03:37:26 +01:00
Tom Gundersen
d638dee035 networkd: bridge - fix state machine
We were entering BRIDGE_STATE_CREATED rather than BRIDGE_STATE_READY.
2013-12-17 22:08:12 +01:00
Tom Gundersen
ef1ba6065c networkd: link - remove useless states
Rework the state-machine a bit.
2013-12-17 22:08:12 +01:00
Tom Gundersen
22936833e1 networkd: rename link_update_flags to link_update
We are likely to track more than the flags in the future.
2013-12-17 22:08:12 +01:00
Tom Gundersen
ae4c67a7c6 networkd: add support for Route sections 2013-12-17 09:24:57 +01:00
Tom Gundersen
b0d27a2508 networkd: correct logging message 2013-12-17 09:24:57 +01:00
Thomas Hindoe Paaboel Andersen
bf1bc67015 network: more asserts to shut up scan-build 2013-12-16 18:55:59 +01:00
Tom Gundersen
0f49a5f751 network: use SETLINK to bring up interfaces 2013-12-16 17:28:19 +01:00
Tom Gundersen
0a0dc69b65 rtnl: replace message_append by typesafe versions 2013-12-16 17:28:18 +01:00
Tom Gundersen
1f01fb4f29 rtnl: simplify route_new()
Drop most of the arguments and instead introduce set_dst_prefixlen().
2013-12-16 17:28:18 +01:00
Tom Gundersen
fc25d7f805 rtnl: simplify link_new()
Drop most of the arguments and instead introduce link_set_{flags,type}.
2013-12-16 17:28:18 +01:00
Lennart Poettering
7b77ed8cf3 event: be more conservative when returning errors from event handler callbacks
We really should return errors from event handlers if we have a
continous problem and don't know any other solution.
2013-12-13 04:06:43 +01:00
Lennart Poettering
cde93897cd event: hook up sd-event with the service watchdog logic
Adds a new call sd_event_set_watchdog() that can be used to hook up the
event loop with the watchdog supervision logic of systemd. If enabled
and $WATCHDOG_USEC is set the event loop will ping the invoking systemd
daemon right after coming back from epoll_wait() but not more often than
$WATCHDOG_USEC/4. The epoll_wait() will sleep no longer than
$WATCHDOG_USEC/4*3, to make sure the service manager is called in time.

This means that setting WatchdogSec= in a .service file and calling
sd_event_set_watchdog() in your daemon is enough to hook it up with the
watchdog logic.
2013-12-11 18:20:09 +01:00
Tom Gundersen
dd3efc0993 networkd: add link-sense and simplify state-machine a bit
This listens to rtnetlink for changes to IFF_UP and IFF_LOWER_UP (link sense). The latter
is simply logged at the moment, but will be useful once we add dhcp support.
2013-12-04 14:15:13 +01:00
Zbigniew Jędrzejewski-Szmek
df41aaf9a2 Remove some unused variables 2013-11-28 14:37:11 -05:00
Tom Gundersen
92fe133abf networkd: fix several Address entries in [Network] section 2013-11-28 17:17:04 +01:00
Patrik Flykt
e877666c15 networkd: Initialize variable to NULL
If any number of arguments are given, _cleanup_manager_free_ is used
with unitialized memory causing a crash.
2013-11-27 16:44:54 +01:00
Tom Gundersen
02b59d57e0 networkd: add bridge support
A bridge is specified in a .netdev file with a section [Bridge]
and at least the entry Name=.

A link may be joined to a bridge if the .network applied to it has
a Bridge= entry giving the name of the bridge in its [Network] section.

We eagerly create all bridges on startup, and links are added to
bridges as soon as they both appear.
2013-11-26 01:32:25 +01:00
Tom Gundersen
c166a07055 networkd: minor fixes
In particular, store the ifname, though we should only use it carefully, as
it is not guaranteed to be stable. Using it for logging is fine though.
2013-11-26 01:32:25 +01:00
Dave Reisner
a9bc6d2df1 networkd: use correct printf formatter
uint64_t can be formatted correctly with %ju, rather than casting to
unsigned and potentially losing accuracy.
2013-11-25 18:19:49 -05:00
Thomas Hindoe Paaboel Andersen
26fefda707 delete unused variables 2013-11-25 21:16:26 +01:00
Tom Gundersen
6ae115c1fe networkd: add support for [Address] sections
This will allow specifying more options per address than the
simple Address= entry in the [Network] section.

Preliminary support for the same functionality for [Route] sections
are added, but not yet hooked up, as more testing is needed.
2013-11-25 19:35:44 +01:00
Tom Gundersen
71a6151083 conf-parser: distinguish between multiple sections with the same name
Pass on the line on which a section was decleared to the parsers, so they
can distinguish between multiple sections (if they chose to). Currently
no parsers take advantage of this, but a follow-up patch will do that
to distinguish

[Address]
Address=192.168.0.1/24
Label=one

[Address]
Address=192.168.0.2/24
Label=two

from

[Address]
Address=192.168.0.1/24
Label=one
Address=192.168.0.2/24
Label=two
2013-11-25 19:35:44 +01:00
Tom Gundersen
a553fd32d1 networkd: fix build
Forgot to 'git add'...
2013-11-23 02:47:12 +01:00
Tom Gundersen
4b6141c424 networkd: use Type=notify
Also start earlier during boot.
2013-11-23 02:07:08 +01:00
Tom Gundersen
5a3eb5a77d networkd: make sure Network and Link can always be freed
Also, don't fail a link just because we can't find its MAC address.
2013-11-21 21:04:04 +01:00
Tom Gundersen
602cc437e8 networkd: avoid segfault 2013-11-21 20:48:06 +01:00
Tom Gundersen
002f5de9a9 networkd: don't filter on udev tags
This removed the requirement for devices to be tagged with
'systemd-networkd' before they will be visible to networkd.

Still, as by default we don't ship any .network files, network
devices will simply be tracked, but not touched, unless the
admin configures things explicitly.
2013-11-21 15:33:02 +01:00
Tom Gundersen
0617ffabe8 networkd: make sure Links and Networks are freed 2013-11-19 14:39:19 +01:00
Tom Gundersen
f882c247ad networkd: make all calls async 2013-11-17 23:12:27 +01:00
Tom Gundersen
8cd11a0f0f networkd: store netmask and mac address explicitly 2013-11-17 23:11:11 +01:00
Tom Gundersen
fe4824e065 rtnl: rename rtnl_bus_send_with_reply_and_block() to rtnl_bus_call()
Follow the equivalent rename in sd-bus to stay as similar as possible.
2013-11-13 19:48:44 +01:00
Lennart Poettering
afc6adb5ec bus: introduce concept of a "default" event loop per-thread and make use of it everywhere
Try to emphasize a bit that there should be a mapping between event
loops and threads, hence introduce a logic that there's one "default"
event loop for each thread, that can be queried via
"sd_event_default()".
2013-11-12 00:12:43 +01:00
Tom Gundersen
7c99d940c1 network: fix tests
One of the tests were assuming the network configuration dirs exist. We
can't do that, so disable it for now.
2013-11-10 01:26:49 +01:00
Tom Gundersen
f579559b3a networkd: add a basic network daemon
This daemon listens for and configures network devices tagged with
'systemd-networkd'. By default, no devices are tagged so this daemon
can safely run in parallel with existing network daemons/scripts.

Networks are configured in /etc/systemd/network/*.network. The first .network
file that matches a given link is applied. The matching logic is similar to
the one for .link files, but additionally supports matching on interface name.

The mid-term aim is to provide an alternative to ad-hoc scripts currently used
in initrd's and for wired setups that don't change much (e.g., as seen on
servers/and some embedded systems).

Currently, static addresses and a gateway can be configured.

Example .network file:

[Match]
Name=wlp2s0

[Network]
Description=My Network
Gateway=192.168.1.1
Address=192.168.1.23/24
Address=fe80::9aee:94ff:fe3f:c618/64
2013-11-09 23:41:17 +01:00