Commit Graph

68 Commits

Author SHA1 Message Date
Yu Watanabe 2075e596cf network: convert router lifetime from usec_t to uint16_t 2020-11-10 00:04:52 +09:00
Yu Watanabe db9ecf0501 license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
Timo Rothenpieler b8162cd200 network: store full hardware address in Link struct
This passes the legacy ethernet address to functions in a lot of places,
which all will need migrated to handle arbitrary size hardware addresses
eventually.
2020-10-28 14:44:43 +01:00
Yu Watanabe 9c914c0401
Merge pull request #17357 from yuwata/network-dhcp6-pd-announce-17353
network: add an option to control announcement of delegated prefix
2020-10-23 12:57:58 +09:00
Yu Watanabe 27ff0490e6 network: rename IPv6PrefixDelegation= to IPv6SendRA= 2020-10-19 14:55:18 +09:00
Yu Watanabe e502f94dcf network: introduce DHCPv6PrefixDelegation= setting
Then, the link can configure prefix delegated by DHCPv6 without emitting
RA.
2020-10-19 10:09:38 +09:00
Yu Watanabe 8a08bbfc98 network: drop static prefixes and static route prefixes earlier if IPv6PrefixDelegation=no or dhcpv6 2020-10-19 10:09:38 +09:00
Yu Watanabe 69e0f833a3 network: introduce network_adjust_radv() 2020-10-19 10:09:38 +09:00
Yu Watanabe a3c1a94947 network: clear DNS and domains for RA when an empty string is assigned 2020-10-19 10:09:38 +09:00
Yu Watanabe 5e2767720a network: use string_hash_ops_free for search domains 2020-10-19 10:09:38 +09:00
Yu Watanabe a391901eb2 network: drop unnecessary conditions
sd_ipv4acd_stop() and sd_ipv4ll_stop() are idempotent.
2020-10-15 07:40:13 +09:00
Yu Watanabe 13ffa39f8e network: rename network_verify_xxx() -> network_drop_invalid_xxx()
As 'verify' implies a boolean result.
2020-10-07 03:22:03 +09:00
Yu Watanabe 4cf8500067 network: use sd_event stored in Manager 2020-10-07 02:50:51 +09:00
Yu Watanabe be9363ccab network: introduce radv_update_mac() 2020-10-07 02:50:51 +09:00
Yu Watanabe 086b8853d1 network: move link_radv_enabled() 2020-10-07 02:50:50 +09:00
Yu Watanabe be023c670b network: make network_get_ipv6_dns() always set return value on success 2020-10-07 02:44:42 +09:00
Yu Watanabe a8d4a21091 network: fix indentation 2020-10-07 02:44:42 +09:00
Yu Watanabe b5ce40472c network: cleanup networkd-radv.h 2020-10-07 02:44:42 +09:00
Yu Watanabe 1a7deb2fcf network: introduce network_verify_prefix() and network_verify_route_prefix() 2020-10-07 02:44:42 +09:00
Yu Watanabe ecb0e85ea9 network: drop redundant list of prefixes and route prefixes 2020-10-07 02:44:42 +09:00
Yu Watanabe 064dfb05f0 network: make prefix_free() and route_prefix_free() return NULL 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 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 e77bd3fdff network: support port number and SNI in [Network] DNS= 2020-07-21 04:08:22 +09:00
Yu Watanabe c97785168b network: radv: clean up conf parsers 2020-07-17 01:16:38 +09:00
Yu Watanabe d96edb2c6e network: downgrade log level in conf parsers 2020-07-17 00:40:09 +09:00
Yu Watanabe 1d596fdec2 network: do not restart radv engine when adding prefix
Replaces d469cea3bd.
2020-07-07 11:20:35 +09:00
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 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
Yu Watanabe fd3ef936ed network,radv: make DNS= in [IPv6PrefixDelegation] section take special value 'linklocal'
Closes #13639.
2020-02-04 13:56:30 +09:00
Yu Watanabe 95081e08d7 network: split struct Prefix into Prefix and RoutePrefix 2019-11-05 22:31:20 +09:00
Yu Watanabe 471e126b25 network: fix memleak in route_prefix_free() 2019-11-05 10:48:15 +09:00
Yu Watanabe 095b3a7d90 network: fix typo 2019-11-05 10:43:43 +09:00
Yu Watanabe e7825b2359 network: fix invalid cleanup function 2019-11-05 10:39:15 +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 ca5ad760a5 network: move conf parsers and function prototypes 2019-06-30 04:45:56 +09:00
Frantisek Sumsal 4e361acc06 tree-wide: replace explicit NULL checks with their shorter variants
Done by coccinelle/equals-null.cocci
2019-04-28 14:28:49 +02:00
Yu Watanabe fcbf4cb727 network: drop sections contain invalid settings in network_verify()
If e.g., an [Address] section has an invalid setting, then
previously assigned settings in the section is freed, and
only later settings are stored. That may cause partially broken
section stored in Network object.

This makes if an invalid setting is found, then set 'invalid' flag
instead of freeing it. And invalid sections are dropped later by
network_verify().
2019-03-13 11:59:18 +09:00
Yu Watanabe 9560e5b323 network: make all xxx_new_static() static
These functions are called from only config parsers, and the parsers are
in the same files. So, let's make them static.
2019-03-13 11:59:18 +09:00
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 59ea6e57a5 networkd: refuse IPv6 RADV prefixes that lack Prefix= setting
Fixes: #9589
2018-11-30 22:19:28 +01:00
Yu Watanabe 3e5700428e network: allocate hashmap objects when they are required 2018-11-12 16:32:11 +09:00
Yu Watanabe 0f7f27694e network: fixes related to NetworkConfigSection
- Do not allocate NetworkConfigSection when filename == NULL
- set .network element before calling hashmap_put()
- Always free NetworkConfigSection in each object.
2018-11-12 16:32:11 +09:00
Yu Watanabe ecee0abe77 network: fix memleak in static prefix
The fix by 744faf5e4e is not perfect,
as the section leaks if `hashmap_put()` in `prefix_new_static()` fails.
2018-11-04 00:31:46 +09:00
Yu Watanabe 6b1dec6696 network: introduce radv_prefix_delegation_{from,to}_string() 2018-11-04 00:31:46 +09:00
Yu Watanabe 744faf5e4e network: fix memleak in static prefix
Fixes #10608.
2018-11-01 21:46:38 +09:00
Yu Watanabe 51517f9e09 network: replace udev_device by sd_device 2018-08-23 04:57:39 +09:00
Lennart Poettering 810adae9e9 tree-wide: use proper unicode © instead of (C) where we can
Let's use a proper unicode copyright symbol where we can, it's prettier.

This important patch is very important.
2018-06-14 10:20:20 +02:00