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159 Commits

Author SHA1 Message Date
Susant Sahani b9c5aa3c65 qdisc: netem add support to duplicate packets. 
using this option the chosen percent of packets is duplicated before
queuing them
 2019-10-31 10:36:28 +01:00
Susant Sahani 564ca98484 networkd: dhcp server Support Vendor specific 43 
Implementes https://tools.ietf.org/html/rfc2132

```
[DHCPServer]
SendRawOption=26:uint32:1400
SendRawOption=23:uint8:10

```
Frame 448: 350 bytes on wire (2800 bits), 350 bytes captured (2800 bits) on interface 0
Linux cooked capture
Internet Protocol Version 4, Src: 192.168.5.1, Dst: 192.168.5.11
User Datagram Protocol, Src Port: 67, Dst Port: 68
Dynamic Host Configuration Protocol (ACK)
    Message type: Boot Reply (2)
    Hardware type: Ethernet (0x01)
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0x71f8de9d
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
    Client IP address: 0.0.0.0
    Your (client) IP address: 192.168.5.11
    Next server IP address: 0.0.0.0
    Relay agent IP address: 0.0.0.0
    Client MAC address: 1e:04:f8:b8:2f:d4 (1e:04:f8:b8:2f:d4)
    Client hardware address padding: 00000000000000000000
    Server host name not given
    Boot file name not given
    Magic cookie: DHCP
    Option: (53) DHCP Message Type (ACK)
        Length: 1
        DHCP: ACK (5)
    Option: (51) IP Address Lease Time
        Length: 4
        IP Address Lease Time: (3600s) 1 hour
    Option: (1) Subnet Mask (255.255.255.0)
        Length: 4
        Subnet Mask: 255.255.255.0
    Option: (3) Router
        Length: 4
        Router: 192.168.5.1
    Option: (6) Domain Name Server
        Length: 4
        Domain Name Server: 192.168.5.1
    Option: (42) Network Time Protocol Servers
        Length: 4
        Network Time Protocol Server: 192.168.5.1
    Option: (101) TCode
        Length: 13
        TZ TCode: Europe/Berlin
    Option: (43) Vendor-Specific Information
        Length: 9
        Value: 1701311a0431343030
    Option: (54) DHCP Server Identifier (192.168.5.1)
        Length: 4
        DHCP Server Identifier: 192.168.5.1
    Option: (255) End
        Option End: 255

```
 2019-10-31 09:03:43 +09:00
Zbigniew Jędrzejewski-Szmek 864edb39cf network: rename SendOptions= to SendOption= 
The name with plural made more sense where multiple options could be specified
in one line. After changes in the pull request, this option only accepts one
value, so from users' POV it should be singular.

(The field in the data structure remains plural, because it actually stores
multiple values.)
 2019-10-30 08:56:18 +01:00
Susant Sahani 0f5bd7fe24 network: introduce TrafficControl 
Add network delay to a interface
 2019-10-30 09:33:51 +09:00
Yu Watanabe 78404d22cc network: support matching based on wifi interfece type 2019-10-25 16:43:18 +09:00
Zbigniew Jędrzejewski-Szmek 510c4bb31f
Merge pull request #13142 from yuwata/network-wifi-ssid-support-nl80211 
network: wifi ssid support with nl80211
 2019-10-23 14:51:23 +02:00
Zbigniew Jędrzejewski-Szmek c8966bffdd
Merge pull request #13663 from ssahani/dhcp-send-option-data 
network: DHCPv4 client- add support to send arbitary option and data
 2019-10-16 11:31:22 +02:00
Yu Watanabe 277ba8d1ab network: add support matching based on BSSID= 2019-10-15 01:59:56 +09:00
Yu Watanabe 8d968fdd99 network: support matching based on wifi SSID 2019-10-15 01:59:06 +09:00
Susant Sahani cb29c15605 network: DHCPv4 client: add support to send arbitary option and data 2019-10-15 00:14:02 +09:00
Susant Sahani c16c780804 network: introduce ip nexthop routing 
Used to manipulate entries in the kernel's nexthop tables.
Example:
```
[NextHop]
Id=3
Gateway=192.168.5.1
```
 2019-10-14 21:32:48 +09:00
Susant Sahani 2805536bff network: DHCPv6 client add support for prefix delegation hint 
Add support for prefix hint lenth and prefix hint address
```
Frame 43: 177 bytes on wire (1416 bits), 177 bytes captured (1416 bits) on interface 0
Ethernet II, Src: f6:c1:08:4d:45:f1 (f6:c1:08:4d:45:f1), Dst: IPv6mcast_01:00:02 (33:33:00:01:00:02)
Internet Protocol Version 6, Src: fe80::d250:c82:7f6e:28d6, Dst: ff02::1:2
User Datagram Protocol, Src Port: 546, Dst Port: 547
DHCPv6
    Message type: Solicit (1)
    Transaction ID: 0x5c7902
    Rapid Commit
    Identity Association for Non-temporary Address
    Fully Qualified Domain Name
    Identity Association for Prefix Delegation
        Option: Identity Association for Prefix Delegation (25)
        Length: 41
        Value: 1b97b1690000000000000000001a0019ffffffffffffffff…
        IAID: 1b97b169
        T1: 0
        T2: 0
        IA Prefix
            Option: IA Prefix (26)
            Length: 25
            Value: ffffffffffffffff3c000000000000000000000000000000…
            Preferred lifetime: infinity
            Valid lifetime: infinity
            Prefix length: 60
            Prefix address: ::
    Option Request
    Client Identifier
    Elapsed time
```
 2019-10-01 23:52:40 +09:00
Siddharth Chandrasekara afe42aef39 dhcp4: make IPServiceType configurable 
IPServiceType set to CS6 (network control) causes problems on some old
network setups that continue to interpret the field as IP TOS.

Make DHCP work on such networks by allowing this field to be set to
CS4 (Realtime) instead, as this maps to IPTOS_LOWDELAY.

Signed-off-by: Siddharth Chandrasekaran <csiddharth@vmware.com>
 2019-09-26 11:39:46 +09:00
Susant Sahani 299d578f7f network: DHCP server Add support to transmit SIP server 
1. DHCP server trasmit
2. Client parses and saves in leases
Implements http://www.rfc-editor.org/rfc/rfc3361.txt

```
Frame 134: 348 bytes on wire (2784 bits), 348 bytes captured (2784 bits) on interface 0
Ethernet II, Src: 42:65:85:d6:4e:32 (42:65:85:d6:4e:32), Dst: 1e:04:f8:b8:2f:d4 (1e:04:f8:b8:2f:d4)
Internet Protocol Version 4, Src: 192.168.5.1, Dst: 192.168.5.11
User Datagram Protocol, Src Port: 67, Dst Port: 68
Dynamic Host Configuration Protocol (ACK)
    Message type: Boot Reply (2)
    Hardware type: Ethernet (0x01)
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0x7cc87cb4
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
    Client IP address: 0.0.0.0
    Your (client) IP address: 192.168.5.11
    Next server IP address: 0.0.0.0
    Relay agent IP address: 0.0.0.0
    Client MAC address: 1e:04:f8:b8:2f:d4 (1e:04:f8:b8:2f:d4)
    Client hardware address padding: 00000000000000000000
    Server host name not given
    Boot file name not given
    Magic cookie: DHCP
    Option: (53) DHCP Message Type (ACK)
        Length: 1
        DHCP: ACK (5)
    Option: (51) IP Address Lease Time
        Length: 4
        IP Address Lease Time: (3600s) 1 hour
    Option: (1) Subnet Mask (255.255.255.0)
        Length: 4
        Subnet Mask: 255.255.255.0
    Option: (3) Router
        Length: 4
        Router: 192.168.5.1
    Option: (6) Domain Name Server
        Length: 4
        Domain Name Server: 192.168.5.1
    Option: (42) Network Time Protocol Servers
        Length: 4
        Network Time Protocol Server: 192.168.1.1
    Option: (120) SIP Servers <=====here
        Length: 9
        SIP Server Encoding: IPv4 Address (1)
        SIP Server Address: 192.168.1.1
        SIP Server Address: 192.168.5.2
    Option: (101) TCode
        Length: 13
        TZ TCode: Europe/Berlin
    Option: (54) DHCP Server Identifier (192.168.5.1)
        Length: 4
        DHCP Server Identifier: 192.168.5.1
    Option: (255) End
        Option End: 255
```

```
cat /run/systemd/netif/state                                                                                                   ✔  ⚡  3148  16:40:51
OPER_STATE=routable
CARRIER_STATE=carrier
ADDRESS_STATE=routable
DNS=192.168.94.2 192.168.5.1
NTP=192.168.5.1
SIP=192.168.1.1 192.168.5.2

```

aa
 2019-09-20 21:22:23 +09:00
Susant Sahani 5bc945bec4 network dhcp4: Add support send request options in a generic manner 2019-09-20 21:05:48 +09:00
Susant Sahani 203d4df573 network: Add support to advertie ipv6 route 
Implements https://tools.ietf.org/html/rfc4191

cat veth99.network
```
[Match]
Name=veth99

[Network]
DHCP=no
IPv6PrefixDelegation=yes
Address=2001:db8:0:1::1/64

[IPv6Prefix]
Prefix=2001:db8:0:1::4/64

[IPv6RoutePrefix]
Route=2001:db0:fff::/48

```
Wireshark

```
Frame 481: 142 bytes on wire (1136 bits), 142 bytes captured (1136 bits) on interface 0
Ethernet II, Src: 1e:04:f8:b8:2f:d4 (1e:04:f8:b8:2f:d4), Dst: IPv6mcast_01 (33:33:00:00:00:01)
Internet Protocol Version 6, Src: fe80::1c04:f8ff:feb8:2fd4, Dst: ff02::1
Internet Control Message Protocol v6
    Type: Router Advertisement (134)
    Code: 0
    Checksum: 0xec77 [correct]
    [Checksum Status: Good]
    Cur hop limit: 0
    Flags: 0x00, Prf (Default Router Preference): Medium
    Router lifetime (s): 0
    Reachable time (ms): 0
    Retrans timer (ms): 0
    ICMPv6 Option (Source link-layer address : 1e:04:f8:b8:2f:d4)
        Type: Source link-layer address (1)
        Length: 1 (8 bytes)
        Link-layer address: 1e:04:f8:b8:2f:d4 (1e:04:f8:b8:2f:d4)
    ICMPv6 Option (MTU : 1500)
        Type: MTU (5)
        Length: 1 (8 bytes)
        Reserved
        MTU: 1500
    ICMPv6 Option (Prefix information : 2001:db8:0:1::4/64)
        Type: Prefix information (3)
        Length: 4 (32 bytes)
        Prefix Length: 64
        Flag: 0xc0, On-link flag(L), Autonomous address-configuration flag(A)
        Valid Lifetime: 2592000
        Preferred Lifetime: 604800
        Reserved
        Prefix: 2001:db8:0:1::4
    ICMPv6 Option (Route Information : Medium 2001:db0:fff::/48)
        Type: Route Information (24)
        Length: 3 (24 bytes)
        Prefix Length: 48
        Flag: 0x00, Route Preference: Medium
            ...0 0... = Route Preference: Medium (0)
            000. .000 = Reserved: 0
        Route Lifetime: 604800
        Prefix: 2001:db0:fff::
```
 2019-09-17 12:09:59 +02:00
Yu Watanabe f6c6ff97f5 network: add RoutingPolicyRule.Family= setting 
Closes #13233.
 2019-08-16 22:02:17 +09:00
Yu Watanabe 4bd04e3dcb network: drop recently added settings from deprecated [DHCP] section 2019-07-25 12:39:33 +09:00
Yu Watanabe a24e12f020 network: add DHCPv4.RoutesToDNS= setting 2019-07-19 01:49:39 +09:00
Yu Watanabe b956364db0 network: rename Neighbor.MACAddress= to Neighbor.LinkLayerAddress= 
And make it support IPv4 address.

Closes #13015.
 2019-07-11 22:22:29 +09:00
Lennart Poettering 7e82b4059b
Merge pull request #13006 from yuwata/network-split-dhcp-12917 
networkd: DHCPv6 - separate DHCPv6 options from DHCPv4 options
 2019-07-11 10:28:03 +02:00
1848 98d20a17a9 Added support for xfrm interfaces 2019-07-10 23:02:19 +09:00
Yu Watanabe 4f7331a85e network: rename [DHCP] section to [DHCPv4] 
To keep the backward compatibility broken by the previous commit.
 2019-07-10 17:33:09 +09:00
Susant Sahani caa8ca4286 networkd: DHCPv6 - separate DHCPv6 options from DHCPv4 options 
Closes https://github.com/systemd/systemd/issues/12917
 2019-07-10 16:59:29 +09:00
Yu Watanabe 44005bfb4e network,udev: add Property= setting in [Match] section 
Closes #5665.
 2019-07-01 01:24:42 +09:00
Susant Sahani 7da377ef16 networkd: add support to keep configuration 2019-06-06 22:50:29 +09:00
Susant Sahani e520ce6440 networkd: Ability to selectively ignore IPv6 prefixes supplied via router advertisement 
Closes https://github.com/systemd/systemd/issues/10647
 2019-05-19 22:23:06 +09:00
Susant Sahani 9b88f20aba networkd: route add MPLS TTL propagate 2019-05-18 10:30:41 +09:00
Susant Sahani 69c317a07f networkd: introduce netdev ipvtap 
This patch adds netdev ipvtap that is based on the
IP-VLAN network interface, called ipvtap. An ipvtap device can be created
in the same way as an ipvlan device, using 'kind ipvtap', and then accessed
using the tap user space interface.
 2019-05-16 09:48:53 +09:00
Yu Watanabe 5d5003ab35 network: add DefaultRouteOnDevice= setting in [Network] section 
When enabled, then default route bound to the interface will be created.
This is useful when adding routes on point-to-point interfaces.

Closes #788.
 2019-05-15 12:44:30 +09:00
Yu Watanabe 6e114a2475
Merge pull request #12555 from ssahani/route-properties 
networkd: route add support to configure fastopen_no_cookie
 2019-05-14 09:03:52 +02:00
Susant Sahani 1501b429a9 networkd: DHCP client add support to send RELEASE packet 
closes #10820
 2019-05-14 09:03:01 +02:00
Susant Sahani 633c725865 networkd: route add support to configure fastopen_no_cookie 
This patch adds fastopen_no_cookie option to enable/disable TCP fastopen
without a cookie on a per-route basis.
 2019-05-14 08:08:36 +05:30
Susant Sahani bdb397ed10 networkd: bridge FDB support more NTF_* flags 
Add support to configure NTF_ROUTER and NTF_USE
 2019-05-14 02:24:51 +02:00
Yu Watanabe 5af7bc6f4c
Merge pull request #12480 from ssahani/proxy-arp 
network: bridge add support to configure proxy ARP/WIFI
 2019-05-10 15:30:41 +02:00
Susant Sahani 727b573418 networkd: Add support for blacklisting servers 
closes #6260

fuzzer: Add DHCP support for blacklisting servers
 2019-05-10 15:29:55 +02:00
Susant Sahani 0fadb2a46f network: add support to configure proxy ARP/WIFI 2019-05-09 15:03:04 +09:00
Susant Sahani 1087623bac networkd: Add support to configure proxy ARP and proxy ARP Wifi 2019-05-09 01:44:26 +02:00
Zbigniew Jędrzejewski-Szmek d1c377da0d
Merge pull request #12489 from ssahani/vxlan 
networkd: VXLAN rename Id to VNI
 2019-05-08 12:02:54 +02:00
Susant Sahani 61b824c561 networkd: bridge fdb add support to configure VXLAN VNI 2019-05-08 03:43:43 +02:00
Zbigniew Jędrzejewski-Szmek 29e19a6f19 fuzz: fix spelling of MACsec and MACAddress in the corpus 2019-05-08 06:53:07 +05:30
Susant Sahani 715cedfbf0 networkd: Allow DHCP4 client to set the number to attempt to reconfigure. 
Otherwise current value is 6 and after 6 it will give up.
 2019-05-07 17:12:04 +02:00
Susant Sahani c2c2793f39 networkd: Add support to configure destination address for bridge FDB 
Closes #5145.

Example conf:
```
[Match]
Name=vxlan1309

[BridgeFDB]
MACAddress=00:00:00:00:00:00
Destination=10.0.0.2

[BridgeFDB]
MACAddress=00:00:00:00:00:00
Destination=10.0.0.4

[BridgeFDB]
MACAddress=00:00:00:00:00:00
Destination=10.0.0.5
```
 2019-05-03 06:11:52 +02:00
Susant Sahani 81962db798 network: Introduce MACsec 
Media Access Control Security (MACsec) is an 802.1AE IEEE
industry-standard security technology that provides secure
communication for all traffic on Ethernet links.
MACsec provides point-to-point security on Ethernet links between
directly connected nodes and is capable of identifying and preventing
most security threats, including denial of service, intrusion,
man-in-the-middle, masquerading, passive wiretapping, and playback attacks.

Closes #5754
 2019-04-12 10:12:41 +09:00
Susant Sahani 3a56e697c8 networkd: Introduce l2tp tunnel 
This works allows networkd to configure l2tp tunnel.
See http://man7.org/linux/man-pages/man8/ip-l2tp.8.html
 2019-03-14 10:57:41 +09:00
Tobias Jungel 7f15b71460 networkd: Add bridge port capabilities 
This PR adds the configuration switches for multicast flooding, neighbor
suppression and learning of a bridge port.
 2019-03-13 16:27:22 +01:00
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
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
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