Commit graph

149 commits

Author SHA1 Message Date
Yu Watanabe db5756f3f3 network: sort and rename elements in Network object 2020-10-19 10:09:38 +09:00
Yu Watanabe ad208fac73 network: also manage routes without RTA_OIF attribute 2020-10-07 15:22:10 +02:00
Yu Watanabe 4cf8500067 network: use sd_event stored in Manager 2020-10-07 02:50:51 +09:00
Yu Watanabe 2ffd6d73f9 network: check feature is enabled in xxx_configure() 2020-10-07 02:50:51 +09:00
Yu Watanabe eebba6dc24 network: introduce dhcp6_update_mac() 2020-10-07 02:50:51 +09:00
Yu Watanabe 5460bde5c5 network: introduce link_serialize_dhcp6_client() 2020-10-07 02:50:50 +09:00
Yu Watanabe 093e35334d network: header cleanup 2020-10-07 02:50:50 +09:00
Yu Watanabe 141318f777 network: move link_request_set_routes() 2020-10-07 02:44:42 +09:00
Yu Watanabe 85b6a8110d network: do not add prefix to RA if radv is not configured
Fixes #17017.
2020-09-11 19:28:46 +02:00
Yu Watanabe d157714b68 network: make log_link_error() or friends return void 2020-09-09 02:34:38 +09:00
Zbigniew Jędrzejewski-Szmek 90e74a66e6 tree-wide: define iterator inside of the macro 2020-09-08 12:14:05 +02:00
Yu Watanabe 876dc2b014 network: dhcp6: logs only new address
Closes #16731.
2020-08-27 21:24:07 +02:00
Yu Watanabe 99e015e28c network: rename settings about DHCPv6 Prefix Delegation
Closes #16602.
2020-07-29 05:50:08 +09:00
Yu Watanabe 61c0ef4ff3 network: make RADVPrefixDelegation enum bitfield
This should not change any behavior.
2020-07-29 05:09:42 +09:00
Yu Watanabe 1633c45731 network: dhcp6: drop addresses and delegated prefixes on client stop
Previously, we did not drop addresses and delegated prefixes when
DHCP6 client is stopped.

Fixes #15455.
Fixes #13564.
2020-07-29 02:05:05 +09:00
Yu Watanabe 80b0e86084 network: make address/route_configure optionally return created Address/Route object 2020-07-29 02:05:05 +09:00
Yu Watanabe d96edb2c6e network: downgrade log level in conf parsers 2020-07-17 00:40:09 +09:00
Christian Göttsche aeba8dd523 network: fix typo 2020-07-16 08:45:42 +09:00
Yu Watanabe 0c816fcc7b network: make link_request_set_nexthop() called from link_request_set_routes() or route_handler()
Then we can drop static_routes_ready() flag.
2020-07-15 17:15:25 +09:00
Yu Watanabe feb596b5c3 network: include error code in the log message 2020-07-15 17:14:30 +09:00
Yu Watanabe 2a877f4560 network: set dhcp6_xxx_configured flag after routes/addresses are assigned 2020-07-15 17:14:30 +09:00
Yu Watanabe a211ff4b84 network: introduce own address handler for dhcp6 delegated prefix
Fixes #16365.
2020-07-07 19:48:26 +02:00
Zbigniew Jędrzejewski-Szmek 77ecc1aaa5
Merge pull request #16380 from yuwata/network-dhcp6-update-prefix-route
Network: update acquired dhcp6 prefix routes
2020-07-07 09:05:08 +02:00
Yu Watanabe 1d596fdec2 network: do not restart radv engine when adding prefix
Replaces d469cea3bd.
2020-07-07 11:20:35 +09:00
Yu Watanabe 8fc2a5dff4 network: fix indentation 2020-07-07 11:18:28 +09:00
Yu Watanabe 290696e512 Revert "network: Don't send RA with zero router lifetime when restarting radv"
This reverts commit d469cea3bd.
2020-07-07 11:06:08 +09:00
Michael Marley d469cea3bd network: Don't send RA with zero router lifetime when restarting radv
While investigating https://github.com/systemd/systemd/issues/16356, I
discovered that networkd stops the radv service before adding or updating
prefixes and then starts it again.  This causes networkd to send an RA with
a router lifetime of zero, causing the routes to flap on systems receiving
the RA for a fraction of a second before radv is started again and proper
RAs are sent.  That has the potential to cause issues with latency-sensitive
traffic like gaming or VoIP.  This patch adds a boolean argument to the
sd_radv_stop() function to control this behavior.  The zero lifetime RA is
still sent whenever radv is actually being stopped, but when it is being
restarted for a prefix update (from networkd-dhcp6.c), the final RA is no
longer sent to avoid the route flapping.
2020-07-07 10:49:25 +09:00
Yu Watanabe f050c94df0 network: always update acquired prefix route
Otherwise, routes become lifetime 0.

Fixes #16356.
2020-07-07 09:20:44 +09:00
Yu Watanabe 1419ff0401 network: decrease indentation level 2020-07-07 09:14:21 +09:00
Yu Watanabe cecd68c70f network: fix indentation 2020-07-07 08:47:38 +09:00
Susant Sahani 838d39af93 network: Allow DHCPv6 client to start solicit mode
Now DHCPv6 client start only DHCPv6 INFORMATION-REQUEST mode.
Let's enable Solicit mode too.
2020-07-02 16:18:48 +09:00
Yu Watanabe 8d9982e30d network: drop unnecessary "&"
This confuses gcc-10 with -O3 -flto.

Closes #16224.
2020-06-22 12:13:24 +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 c24dd73952 network: move DHCPv6 related conf parsers to networkd-dhcp6.c 2020-06-02 17:06:00 +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
Evgeny Vereshchagin ceae629564 README: add a Fossies codespell badge
I keep forgetting where the report is. Hopefully the badge will
make it easier to find it. I also fixed several typos codespell
found along the way.
2020-05-29 15:06:16 +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
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 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
Andrew Doran e7d5fe17db DHCP client: make SendOption work for DHCPv6 too. 2020-05-11 16:31:08 +02:00
Susant Sahani 3175a8c21b network: DHCPv6 Add support to send MUD URL 2020-04-01 17:01:12 +02:00
Yu Watanabe 5ecb131d94 network: include NLMSGERR_ATTR_MSG attribute in error message 2019-11-30 16:14:02 +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
Yu Watanabe f136875549 network: make route_get() or friends take Route object 2019-09-17 21:53:42 +09:00
Yu Watanabe 5e8712404e network: drop redundant "else" 2019-08-26 15:40:30 +09:00
William A. Kennington III 0b1cd3e25a networkd: Routes should take the gateway into account
Otherwise, changing the default gateway doesn't purge old gateway routes
left on the system during daemon restart. This also fixes removing other
foreign gateway routes that don't match the expected configuration.

Tested:
    Changed gateway addresses prior to the patch and they lingered on
    the system during each reconfiguration. Applied this patch and
    reconfigured gateways and other routes multiple times and it removed
    the foreign routes that had gateways that didn't match.

Signed-off-by: William A. Kennington III <william@wkennington.com>
2019-08-07 20:32:36 +09:00