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Commit Graph

22 Commits

Author SHA1 Message Date
Clemens Gruber
c423be28a0 network: introduce TripleSampling= option in CAN section
When enabled, three samples are used to determine the value of a
received bit by majority rule.

This patch adds support for the TripleSampling= option in the [CAN]
section of .network files.
2019-03-11 17:15:47 +01:00
Yu Watanabe
9cb8c55934 network: rename GatewayOnlink= to GatewayOnLink=
But still GatewayOnlink= is supported for backward compatibility.
2019-02-28 10:00:22 +09:00
Zbigniew Jędrzejewski-Szmek
c448459d56 networkd: refuse more than 128 NTP servers
This test case is a bit silly, but it shows that our code is unprepared to
handle so many network servers, with quadratic complexity in various places.
I don't think there are any valid reasons to have hundres of NTP servers
configured, so let's just emit a warning and cut the list short.

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13354
2019-02-27 14:52:33 +01:00
Zbigniew Jędrzejewski-Szmek
83ec459276 networkd: fix memleak when the same NetDev is specified twice
hashmap_put() returns 0 if the (key, value) pair is already present in the
hashmap, and -EEXIST if the key exists, but the value is different.

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13433
2019-02-27 14:31:28 +01:00
Zbigniew Jędrzejewski-Szmek
95b2903bde tests: shorten the fuzz test case
The test was failing in Ubuntu CI with a 30s timeout. It makes
sense to keep the file so exercise the set allocation logic, but
we can make it shorter.
2019-02-21 12:30:13 +01:00
Zbigniew Jędrzejewski-Szmek
5e2a51d588 networkd: use OrderedSets instead of strvs to store lists of domains
We were already using OrderedSets in the manager object, but strvs in the
configuration parsing code. Using sets gives us better scaling when many
domains are used.

In oss-fuzz #13059 the attached reproducer takes approximately 30.5 s to be
parsed. Converting to sets makes this go down to 10s. This is not _vastly_
faster, but using sets seems like a nicer approach anyway. In particular, we
avoid the quadratic de-unification operation after each addition.
2019-02-21 12:04:27 +01:00
Lennart Poettering
84e4b0b893
Merge pull request #11716 from ssahani/drop-autoconf-address
networkd: ipv6ra allow to ignore addresses
2019-02-15 12:17:46 +01:00
Susant Sahani
24433ffa6d Add to fuzzer 2019-02-14 21:10:59 +05:30
Susant Sahani
93b4dab57e networkd: Allow to retain configs even if carrier is lost
When there is bad link in the network the carrier goes up/down.
This makes networkd stops all the clients and drop config.
But if the remote router/dhcpserver running a prevention
of DHCP Starvation attack or DHCP Flood attack it does not allow
networkd to take a DHCP lease resulting failure in configuration.
This patch allows to keep the client running and keep the conf
also for this scenario.

Closes #9111
2019-02-06 13:35:11 +01:00
Lennart Poettering
7ece6f5897 networkd: permit DNS "DefaultRoute" configuration in .network files 2018-12-21 12:10:07 +01:00
William A. Kennington III
e4a71bf36f networkd: Static neighbor support
When using networkd we currently have no way of ensuring that static
neighbor entries are set when our link comes up. This change adds a new
section to the network definition that allows multiple static neighbors
to be set on a link.
2018-12-09 16:56:37 -08:00
Yu Watanabe
801503d22b
Merge pull request #10988 from ssahani/IFLA_BRPORT_MCAST_TO_UCAST
networkd: bridge add support to configure multicast_to_unicast
2018-12-06 14:32:52 +01:00
Susant Sahani
8b220643b1 networkd: RPDB rule - add support to configure inverted rule.
Closes #10706
2018-12-06 10:42:36 +05:30
Susant Sahani
d3aa8b49e5 networkd: bridge add support to configure multicast_to_unicast
closes #10649
2018-12-03 23:49:46 +05:30
Yu Watanabe
97f9df9e30 network: rename Protocol= in [RoutingPolicyRule] to IPProtocol= 2018-12-02 06:13:47 +01:00
Susant Sahani
926062f083 networkd: add support to configure ip rule port range and protocol.
Please see:

iprule: support for ip_proto, sport and dport match options
https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=f686f764682745daf6a93b0a6330ba42a961f858

Closes 10622
2018-11-28 20:06:28 +05:30
Yu Watanabe
e2e6148619 fuzz: add testcase of oss-fuzz#11345 2018-11-11 12:03:52 +09:00
Yu Watanabe
872faf59c0 fuzz: add testcases of recent issues 2018-11-09 11:45:43 +09:00
Yu Watanabe
d571998498 fuzz: add a testcase for oss-fuzz#11285 2018-11-08 12:31:02 +09:00
Evgeny Vereshchagin
220fa139de tests: add a couple of files containing all the sections and directives
This should help the fuzzers to discover code paths faster.

In case anyone is interested, they were generated with the following script
```
perl -aF'/[\s,]+/' -ne '
if (my ($s, $d) = ($F[0] =~ /^([^\s\.]+)\.([^\s\.]+)$/)) { $d{$s}{$d} = 1; }
END { while (my ($key, $value) = each %d) {
    printf "[%s]\n%s\n", $key, join("\n", keys(%$value))
}}'
```
by passing src/network/networkd-network-gperf.gperf and
src/network/netdev/netdev-gperf.gperf to it.
2018-11-06 19:42:29 +01:00
Evgeny Vereshchagin
d0f51aa9cd tests: add a reporoducer for https://github.com/systemd/systemd/issues/10639 2018-11-06 19:01:32 +01:00
Evgeny Vereshchagin
efc1a59af6 tests: add some data that can be fed to fuzz-network-parser 2018-11-06 19:01:32 +01:00