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259 Commits

Author SHA1 Message Date
Susant Sahani
518cd6b527 network: Introduce SR-IOV 
SR-IOV provides the ability to partition a single physical PCI
resource into virtual PCI functions which can then be injected in
to a VM. In the case of network VFs, SR-IOV improves north-south n
etwork performance (that is, traffic with endpoints outside the
host machine) by allowing traffic to bypass the host machine’s network stack.
 2020-07-01 13:51:33 +09:00
Yu Watanabe
6f6296b93f network: move IPv6LinkLocalAddressGenerationMode= to [Network] section 
This also moves and renames variables and functions.

Follow-ups for a6f1848a23.
 2020-06-30 18:58:52 +09:00
Lennart Poettering
6b000af4f2 tree-wide: avoid some loaded terms 
https://tools.ietf.org/html/draft-knodel-terminology-02
https://lwn.net/Articles/823224/

This gets rid of most but not occasions of these loaded terms:

1. scsi_id and friends are something that is supposed to be removed from
   our tree (see #7594)

2. The test suite defines an API used by the ubuntu CI. We can remove
   this too later, but this needs to be done in sync with the ubuntu CI.

3. In some cases the terms are part of APIs we call or where we expose
   concepts the kernel names the way it names them. (In particular all
   remaining uses of the word "slave" in our codebase are like this,
   it's used by the POSIX PTY layer, by the network subsystem, the mount
   API and the block device subsystem). Getting rid of the term in these
   contexts would mean doing some major fixes of the kernel ABI first.

Regarding the replacements: when whitelist/blacklist is used as noun we
replace with with allow list/deny list, and when used as verb with
allow-list/deny-list.
 2020-06-25 09:00:19 +02:00
Lennart Poettering
c4e90266db
Merge pull request #16093 from yuwata/network-htb-add-settings-15213 
network: tc: add several settings for HTB
 2020-06-24 19:07:41 +02:00
Lennart Poettering
f9044b74c5
Merge pull request #16106 from yuwata/network-tc-ets 
network: tc: introduce ETS
 2020-06-24 19:04:43 +02:00
Zbigniew Jędrzejewski-Szmek
fcc1d0315d basic/set: add set_ensure_consume() 
This combines set_ensure_allocated() with set_consume(). The cool thing is that
because we know the hash ops, we can correctly free the item if appropriate.
Similarly to set_consume(), the goal is to simplify handling of the case where
the item needs to be freed on error and if already present in the set.
 2020-06-24 10:38:15 +02:00
Yu Watanabe
d474aa51bf network: tc: introduce Enhanced Transmission Selection (ETS) 
Closes #15264.
 2020-06-19 01:07:45 +09:00
Lennart Poettering
2a71d57f4e network: clean-up DHCP lease server data configuration 
This is an attempt to clean up the POP3/SMTP/LPR/… DHCP lease server
data logic in networkd. This reduces code duplication and fixes a number
of bugs.

This removes any support for collecting POP3/SMPT/LPR servers acquired
via local DHCP client releases since noone uses that, and given how old
these protocols are I doubt this will change. It keeps support for
configuring them for the dhcp server however.

The differences between the DNS/NTP/SIP/POP3/SMTP/LPR configuration
logics are minimized.

This removes the relevant symbols from sd-network.h (which is an
internal API only at this point after all).

This is unfortunately not well test, given the old code for this had
barely any tests. But the new code should not perform worse at least,
and allow us to release, since it corrects some interfaces visible in
the .network configuration format.

Fixes: #15943
 2020-06-18 13:08:18 +09:00
Yu Watanabe
d9eacc1cdd network: tc: add more settings for HTB 
Closes #15213.
 2020-06-17 16:49:46 +09:00
Susant Sahani
120b5c0bbe network: DHCPv6 - Add support to set token on the LAN interface 
This patch adds support to set a token on the LAN interface for
the acquired delegated prefixes for the DHCPv6 to generate address.
 2020-06-17 14:20:48 +09:00
Yu Watanabe
94d76d071e network: introduce IPv4AcceptLocal= setting 
Closes #16090.
 2020-06-08 13:48:17 +09:00
Yu Watanabe
4d7ddaf97b network: tc: introduce [QuickFairQueueingClass] section 2020-06-03 17:25:44 +09:00
Susant Sahani
b12aaee5ab network: tc: introduce Quick Fair Queueing (QFQ) 2020-06-03 14:17:51 +09:00
Yu Watanabe
1bf1bfd958 network: add DHCPv6.RouteMetric= 
Hopefully fixes #15295.
 2020-06-02 15:16:51 +09:00
Yu Watanabe
f3e4b1e07c
Merge pull request #15884 from ssahani/dhcpv6-vendor 
DHCPv6: Introduce vendor specific
 2020-06-01 12:25:54 +09:00
Yu Watanabe
433e14fda7 network: fix memleaks 
Fixes #15951.
 2020-05-29 14:49:40 +02:00
Susant Sahani
b4ccc5de7d network: Inroduce DHCP6- send vendor options 
network: Inroduce DHCP6- send vendor options

```
 0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |      OPTION_VENDOR_OPTS       |           option-len          |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |                       enterprise-number                       |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      .                                                               .
      .                       vendor-option-data                      .
      .                                                               .
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
```

```
  0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |          sub-opt-code         |         sub-option-len        |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      .                                                               .
      .                        sub-option-data                        .
      .                                                               .
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

                 Figure 31: Vendor-specific Options Format

      sub-opt-code         The code for the sub-option.  A 2-octet
                           field.

      sub-option-len       An unsigned integer giving the length of the
                           sub-option-data field in this sub-option in
                           octets.  A 2-octet field.

      sub-option-data      The data area for the sub-option.  The
                           length, in octets, is specified by
                           sub-option-len.

```
 2020-05-29 13:37:57 +02:00
Susant Sahani
9efa8a3cff network: DHCPv6 Assign delegated prefix to LAN interface 
In DHCPv6-PD environment, where WAN interface requests IPv6 via DHCPv6,
receives the address as well as delegated prefixes, with LAN interfaces
serving those delegated prefixes in their router advertisement messages.
The LAN interfaces on the router themselves do not have
the IPv6 addresses assigned by networkd from the prefix it
serves on that interface. Now this patch enables it.
 2020-05-29 16:20:37 +09:00
Lennart Poettering
bb2294e454
Merge pull request #15669 from andir/systemd-ipv6-pd-subnet-id 
networkd: subnet id support for ipv6 prefix delegation
 2020-05-27 18:47:26 +02:00
Andreas Rammhold
02e9e34bd9
networkd: Add support for setting a preferred subnet id for IPv6 PD leases 
This allows users to configure a subnet id that should be used instead
of automatically (sequentially) assigned subnets. The previous attempt
had the downside that the subnet id would not be the same between
networkd restarts. In some setups it is desirable to have predictable
subnet ids across restarts of services and systems.

The code for the assignment had to be broken up into two pieces. One of
them is the old (sequential) assignment of prefixes and the other is the
new assignment based on configured subnet ids. The new assignment code
has to be executed first and has to be taken into account when (later
on) allocating the "old" subnets from the same pool.

Instead of having one iteration through the links we are now trying to
allocate a prefix for every link on every delegated prefix, unless they
received an assignment in a previous iteration.
 2020-05-26 12:41:22 +02:00
Lennart Poettering
1283366a90
Merge pull request #15167 from ssahani/address-gen-mode 
networkctl: Add a range to address genmode
 2020-05-25 17:32:00 +02:00
Evgeny Vereshchagin
0d5266541c tests: add a testcase for https://github.com/systemd/systemd/issues/15885 2020-05-22 13:35:00 +02:00
Susant Sahani
a6f1848a23 network: Allow to configure addr_gen_mode 
Defines how link-local and autoconf addresses are generated.

	0: generate address based on EUI64 (default)
	1: do no generate a link-local address, use EUI64 for addresses generated
	   from autoconf
	2: generate stable privacy addresses, using the secret from
	   stable_secret (RFC7217)
	3: generate stable privacy addresses, using a random secret if unset
 2020-05-21 14:41:04 +02:00
Zbigniew Jędrzejewski-Szmek
929d07ddcb
Merge pull request #15274 from ssahani/network-issue-9610 
DHCP4: Allow lease time to be set when missing from offer
 2020-05-20 16:39:41 +02:00
Susant Sahani
ed0d1b2e99 network: DHCPv6 - Add support to send vendor class information 
Frame 1: 177 bytes on wire (1416 bits), 177 bytes captured (1416 bits) on interface veth-peer, id 0
Ethernet II, Src: 1e:04:f8:b8:2f:d4 (1e:04:f8:b8:2f:d4), Dst: IPv6mcast_01:00:02 (33:33:00:01:00:02)
Internet Protocol Version 6, Src: fe80::1c04:f8ff:feb8:2fd4, Dst: ff02::1:2
User Datagram Protocol, Src Port: 546, Dst Port: 547
DHCPv6
    Message type: Solicit (1)
    Transaction ID: 0x5ca46b
    Rapid Commit
    Identity Association for Non-temporary Address
    Fully Qualified Domain Name
    Vendor Class
        Option: Vendor Class (16)
        Length: 23
        Value: 0000ab11000048656c6c6f3a686f773a6172653a796f75
        Enterprise ID: Tom Gundersen (systemd) (43793)
        vendor-class-data: Hello:how:are:you
    Identity Association for Prefix Delegation
    Option Request
    Client Identifier
    Elapsed time
 2020-05-20 07:58:03 +02:00
Susant Sahani
d6463307e0 network: DHCPv4- Allow to set DHCP lease lifetime 2020-05-20 06:32:26 +02:00
Susant Sahani
f37f2a6b8a network: DHCPv6 - Add support to send user class 
Frame 115: 171 bytes on wire (1368 bits), 171 bytes captured (1368 bits) on interface veth-peer, id 0
Ethernet II, Src: 1e:04:f8:b8:2f:d4 (1e:04:f8:b8:2f:d4), Dst: IPv6mcast_01:00:02 (33:33:00:01:00:02)
Internet Protocol Version 6, Src: fe80::1c04:f8ff:feb8:2fd4, Dst: ff02::1:2
User Datagram Protocol, Src Port: 546, Dst Port: 547
DHCPv6
    Message type: Solicit (1)
    Transaction ID: 0x673257
    Rapid Commit
        Option: Rapid Commit (14)
        Length: 0
    Identity Association for Non-temporary Address
        Option: Identity Association for Non-temporary Address (3)
        Length: 12
        Value: d0cc94090000000000000000
        IAID: d0cc9409
        T1: 0
        T2: 0
    Fully Qualified Domain Name
        Option: Fully Qualified Domain Name (39)
        Length: 6
        Value: 01045a657573
        0000 0... = Reserved: 0x00
        .... .0.. = N bit: Server should perform DNS updates
        .... ..0. = O bit: Server has not overridden client's S bit preference
        .... ...1 = S bit: Server should perform forward DNS updates
        Client FQDN: Zeus
    User Class
        Option: User Class (15)
        Length: 17
        Value: 000f68656c6c6f30313233343031323334
    Identity Association for Prefix Delegation
        Option: Identity Association for Prefix Delegation (25)
        Length: 12
        Value: d0cc94090000000000000000
        IAID: d0cc9409
        T1: 0
        T2: 0
    Option Request
        Option: Option Request (6)
        Length: 10
        Value: 001700180038001f000e
        Requested Option code: DNS recursive name server (23)
        Requested Option code: Domain Search List (24)
        Requested Option code: NTP Server (56)
        Requested Option code: Simple Network Time Protocol Server (31)
        Requested Option code: Rapid Commit (14)
    Client Identifier
        Option: Client Identifier (1)
        Length: 14
        Value: 00020000ab11d258482fc7eee651
        DUID: 00020000ab11d258482fc7eee651
        DUID Type: assigned by vendor based on Enterprise number (2)
        Enterprise ID: Tom Gundersen (systemd) (43793)
        Identifier: d258482fc7eee651
    Elapsed time
        Option: Elapsed time (8)
        Length: 2
        Value: 0bd0
        Elapsed time: 30240ms
 2020-05-19 11:48:30 +02:00
Susant Sahani
35f6a5cb44 network: DHCPv6 - Add support set arbitary request options 2020-05-17 11:18:29 +02:00
Susant Sahani
89fe653544 network: Add support to group links. 
Link groups are similar to port ranges found in managed switches.
You can add network interfaces to a numbered group and perform operations
on all the interfaces from that group at once.
 2020-05-15 15:27:07 +02:00
Andrew Doran
e7d5fe17db DHCP client: make SendOption work for DHCPv6 too. 2020-05-11 16:31:08 +02:00
Susant Sahani
d361b3730a network: Add support send and receive LPR servers 2020-04-22 14:49:27 +02:00
Susant Sahani
e9a8c550c1 LLDP: Add support to transmit MUD URL 2020-04-08 00:20:54 +02:00
Zbigniew Jędrzejewski-Szmek
c51c6f2f57
Merge pull request #15252 from ssahani/dhcpv6-mud 
DHCPv6: Add support to send MUD URL
 2020-04-02 10:23:15 +02:00
Richard Petri
7e025e9cdb network: can: add support for CAN-FD related properties 2020-04-01 20:07:20 +02:00
Susant Sahani
3175a8c21b network: DHCPv6 Add support to send MUD URL 2020-04-01 17:01:12 +02:00
Susant Sahani
7b8d23a9bb network: DHCPv4 - introduce The Manufacturer Usage Description (MUD) 2020-03-30 20:27:48 +02:00
Susant Sahani
f6269fe7bb network: DHCP - add support to emit and receive SMTP server information 2020-03-29 22:59:11 +02:00
Susant Sahani
284e8fd0d7 DHCP: Add support to emit and retrieve POP3 server 2020-03-28 03:34:27 +01:00
David Wood
7354900ddd network: Fix split in SendOption= on client and server 
When specifying `DHCPv4.SendOption=`, it is used by systemd-networkd to
set the value of that option within the DHCP request that is sent out.
This differs to setting `DHCPServer.SendOption=`, which will place all
the options together as suboptions into the vendor-specific information
(code 43) option.

This commit adds two new config options, `DHCPv4.SendVendorOption=` and
`DHCPServer.SendVendorOption=`. These both have the behaviour of the old
`DHCPServer.SendOption=` flag, and set the value of the suboption in the
vendor-specific information option.

The behaviour of `DHCPServer.SendOption=` is then changed to reflect
that of `DHCPv4.SendOption=`. It will set the value of the corresponding
option in the DHCP request.
 2020-03-19 09:08:40 +01:00
Zbigniew Jędrzejewski-Szmek
34bc838f15
Merge pull request #15136 from yuwata/network-dhcp4-use-gateway 
network: add a flag to ignore gateway provided by DHCP server
 2020-03-17 16:51:18 +01:00
Yu Watanabe
74f0fb9095 network: can: add support for listen-only mode 
Closes #15129.
 2020-03-17 00:32:35 +09:00
Yu Watanabe
b453122789 network: add a flag to ignore gateway provided by DHCP server 
Closes #15117.
 2020-03-16 19:34:43 +09:00
Susant Sahani
7f22402007 network: TC - introduce HHF 
Please see https://lwn.net/Articles/577208/
 2020-03-12 15:39:12 +09:00
Susant Sahani
1a95964bfa network: TC - introduce pfifo_fast 
pfifo_fast - three-band first in, first out queue

Please see https://linux.die.net/man/8/tc-pfifo_fast
 2020-03-12 15:38:18 +09:00
Susant Sahani
053a2ddbb2 network: TC - introduce pfifo_head_drop 
This adds the required changes to gain access to
the head drop classfull queuing discipline named
pfifo_head_drop.
 2020-03-12 15:37:17 +09:00
Susant Sahani
c853f594d4 network: TC - introduce BFIFO 
bfifo - Byte limited First In, First Out queue
 2020-03-12 15:35:51 +09:00
Yu Watanabe
ad365c5de7 network: tc: introduce DRR class 2020-03-12 15:35:51 +09:00
Susant Sahani
f5fc04417e network: TC - introduce DRR 
Introduce the Deficit Round Robin Scheduler is a classful queuing discipline as
a more flexible replacement for Stochastic Fairness Queuing.

http://man7.org/linux/man-pages/man8/tc-drr.8.html
 2020-03-12 15:35:51 +09:00
Susant Sahani
bde4ae88c8 network: tc- introduce PIE 
Proportional Integral controller-Enhanced (PIE) is a control
theoretic active queue management scheme. It is based on the
proportional integral controller but aims to control delay.

http://man7.org/linux/man-pages/man8/tc-pie.8.html
 2020-03-12 13:58:35 +09:00
Yu Watanabe
a834cb5247
Merge pull request #15036 from yuwata/can-termination-mod 
network: add CAN Termination tristate option
 2020-03-07 19:11:03 +09:00
Matt Ranostay
52aa38f14a network: add CAN Termination tristate option 2020-03-07 02:00:02 +09:00
Yu Watanabe
bba1f90ff5
Merge pull request #14890 from yuwata/network-tc-next 
network: tc-next
 2020-03-07 01:44:15 +09:00
Yu Watanabe
d739fddeb5 network: add setting to support RA without DHCPv6 client 
Closes #13991.
 2020-03-07 01:39:26 +09:00
Susant Sahani
cd305af1fe network: Allow DHCPv6 client to start without router's managed flag. 2020-03-07 01:38:26 +09:00
Susant Sahani
ad8352f4ff network: tc: introduce cake 
CAKE (Common Applications Kept Enhanced)

Please see http://man7.org/linux/man-pages/man8/tc-cake.8.html
 2020-03-02 15:59:37 +09:00
Susant Sahani
982998b087 network: TC introduce sfb - Stochastic Fair Blue 
Please see https://www.systutorials.com/docs/linux/man/8-tc-sfb/
 2020-03-02 15:48:24 +09:00
Susant Sahani
609e8340bb network: TC introduce GRED, Generic Random Early Detection 
http://tldp.org/en/Traffic-Control-HOWTO/ar01s06.html
 2020-03-02 15:48:24 +09:00
Susant Sahani
a74760653c network: TC introduce PFIFO 2020-03-02 15:48:00 +09:00
Yu Watanabe
19f86a6351 network: tc: support HTB class 2020-03-02 15:46:28 +09:00
Yu Watanabe
b934ac3d6e network: tc: support Hierarchy Token Bucket (HTB) 2020-03-02 15:46:28 +09:00
Susant Sahani
bd6379ec57 network: introduce IPv6 prefix assign 
Expose a boolean flag to automatically add an address from the delegated prefix to the interface
 2020-03-01 00:49:19 +09:00
Susant Sahani
d8b2396d34 network: add support for qdisc handle 2020-02-10 17:48:53 +09:00
Zbigniew Jędrzejewski-Szmek
c3b41d8811
Merge pull request #14805 from yuwata/network-ipv6-token-follow-up 
network: rename eui64 to static
 2020-02-07 17:05:33 +01:00
Yu Watanabe
9b749c11e2 network: tc: support teql 
Closes #14792.
 2020-02-07 17:41:49 +09:00
Yu Watanabe
f0c1ad308d network: fix ABRT 
Fixes #14811 and oss-fuzz#20548.
 2020-02-07 17:18:58 +09:00
Yu Watanabe
2ed5f6d5de network: introduce new [QDisc] section to support Parent=ingress 
Follow-up for 18de0969c5.
 2020-02-07 13:48:54 +09:00
Zbigniew Jędrzejewski-Szmek
ca58d00c68 network: FairQueueTrafficPolicing→FairQueueing 
This never made into a release, so we can change the name with impunity.
Suggested by Davide Pesavento.

I opted to add the "ing" ending. "Fair queuing" is the name of the general
concept and algorithm, and "Fair queue" is mostly used for the implementation
name.
 2020-02-04 17:37:16 +01:00
Zbigniew Jędrzejewski-Szmek
60ed2dcfc7 network: TokenBufferFilter→TokenBucketFilter 
This never made into a release, so we can change the name with impunity.
Noticed by Davide Pesavento.
 2020-02-04 17:28:15 +01:00
Yu Watanabe
18de0969c5 network: split TrafficControlQueueingDiscipline section into small pieces 
Closes #14763.
 2020-02-04 21:45:39 +09:00
Naïm Favier
53e1ba280f
network: add SuppressPrefixLength option to RoutingPolicyRule (#14736) 
Closes #14724.
 2020-02-03 08:25:48 +09:00
Yu Watanabe
ea471a4695 network: support UID based routing policy 
Closes #14666.
 2020-02-02 22:43:38 +09:00
Yu Watanabe
4bb7cc8287 network, udev: introduce PermanentMACAddress= setting in [Match] section 
Closes #13983.
 2020-01-08 17:54:54 +09:00
Lennart Poettering
dc5737470e
Merge pull request #14194 from yuwata/network-multipath-routing-12541 
network: introduce multipath routing
 2020-01-03 15:38:03 +01:00
Yu Watanabe
b078e52855 network: add more settings for CoDel 2019-12-28 22:25:12 +09:00
Susant Sahani
c695dcf929 network: Add support to configure DHCPv4 route MTU 
This is useful for transitioning systems from small frames to jumbo frames.

Closes #14302
 2019-12-28 21:37:26 +09:00
Susant Sahani
a9a5d632da network: tc introduce codel 
Please see http://man7.org/linux/man-pages/man8/tc-codel.8.html
 2019-12-28 21:35:39 +09:00
Susant Sahani
0f3ff4eae2 network: DHCP4 introduce send decline 2019-12-21 00:26:44 +09:00
Yu Watanabe
de697db05b network: introduce AddPrefixRoute= and deprecate PrefixRoute= 
PrefixRoute= was added by e63be0847c,
but unfortunately, the meaning of PrefixRoute= is inverted; when true
IFA_F_NOPREFIXROUTE flag is added. This introduces AddPrefixRoute=
setting.
 2019-12-18 16:32:31 +01:00
Yu Watanabe
6ff5cc6b7a network: introduce multipath route 
Closes #12541.
 2019-12-18 22:12:57 +09:00
Yu Watanabe
e83562e51e network: tc: add more settings for FQ 2019-12-13 23:36:17 +09:00
Yu Watanabe
ac810b75c1 network: tc: support more attributes for FQ-CoDel 2019-12-12 23:36:48 +09:00
Susant Sahani
7234b91596 network tc: inroduce FQ - Fair Queue traffic policing 
Please see http://man7.org/linux/man-pages/man8/tc-fq.8.html
 2019-12-12 17:26:20 +09:00
Susant Sahani
4e5ef14919 network tc: Add support to conkfigure CoDel - Controlled-Delay Active Queue Management algorithm 
```
$ tc qdisc show dev dummy99
qdisc fq_codel 8005: dev dummy99 root refcnt 2 limit 1000p flows 1024 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn
$ network cat dumm99.network
[Match]
Name=dummy99

[TrafficControlQueueingDiscipline]
Parent=root
FairQueuingControlledDelayPacketLimit=1000

```
 2019-12-11 00:06:31 +09:00
Yu Watanabe
dcfc23ae77 network: tc: add more options for TBF 2019-12-10 01:28:38 +09:00
Susant Sahani
9942b71089 network: tc introduce sfq - Stochastic Fairness Queueing 
Stochastic Fairness Queueing is a classless queueing discipline.
SFQ does not shape traffic but only schedules the transmission of packets, based on 'flows'.
The goal is to ensure fairness so that each flow is able to send data in turn,
thus preventing any single flow from drowning out the rest.
 2019-12-04 20:58:17 +09:00
Susant Sahani
ba5841b520 networkd tc: introduce tbf 
See https://linux.die.net/man/8/tc-tbf
 2019-12-04 20:55:48 +09:00
Yu Watanabe
d8b736bd0c network: rename SendRawOption= to SendOption= 
As DHCPv4.SendOption= and DHCPServer.SendRawOption= take the same
format.
 2019-11-18 23:35:48 +09:00
Yu Watanabe
c1ed516cde test: add testcase for issue #13938 2019-11-05 10:49:07 +09:00
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
Yu Watanabe
f392c06566
Merge pull request #12863 from 1848/if_xfrm 
Added support for xfrm interfaces
 2019-07-10 23:04:49 +09:00
1848
98d20a17a9 Added support for xfrm interfaces 2019-07-10 23:02:19 +09:00
Yu Watanabe
e4443f9bfc network: fix memleak 
set_put() does not return -EEXIST.

Fixes #12995 and oss-fuzz#15678.
 2019-07-10 12:27:48 +02:00
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
Yu Watanabe
4d6cd572a7 fuzz: add testcases for the bug in condition_free_list_type() 2019-03-24 00:35:39 +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
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