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Author SHA1 Message Date
Yu Watanabe bac319a795 network: link may be NULL 2020-10-23 23:07:12 +09:00
Yu Watanabe b1dc5946e2 network: ignore error in writing proxy_ndp 
This partially reverts the commit fd773a11d8.

As, IPv6 may be disabled by kernel.
 2020-10-23 23:07:12 +09:00
Yu Watanabe 9b3e49fc00 network: fix typo 2020-10-23 23:07:12 +09:00
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
Dan Streetman e16e4b3bed network: move set-MAC and set-nomaster operations out of link_up() 
These should not be bundled into the link_up() operation, as that is
not (currently) called during interface configuration if the interface
already is IFF_UP, which is unrelated to the need to change the mac
to a user-defined value, or set 'nomaster' on the interface.

Additionally, there is no need to re-set the mac or re-assert nomaster
every time the interface is brought up; those should be only part of
normal initial interface configuration.

Fixes: #17391
 2020-10-23 12:09:31 +09:00
Lennart Poettering 69f30d4321
Merge pull request #17356 from yuwata/sd-xxx-stop 
network: about sd_xxx_stop()
 2020-10-21 18:07:38 +02:00
Yu Watanabe 0c54bfd698 network: call netlink in the last of route_configure() 
Otherwise, assertion will be hit when route_add() fails.
 2020-10-20 15:44:24 +09:00
Yu Watanabe 40075951dc network: also compare and hash weight of the gateway 2020-10-20 15:32:55 +09:00
Yu Watanabe cc17f75f66 network: copy multipath route element earlier 
`route_get()` compares input with existing routes, however previously,
the input may did not have information about gateway. So, the
comparison result might be incorrect, and the foregoing set_put() might
return -EEXIST.
 2020-10-20 15:32:55 +09:00
Yu Watanabe 8c212f76c2 network: make route_configure() return 0 on success 
Previously, route_configure() always returns 1 on success, and never
returns 0. It is not necessary to return positive value.
 2020-10-20 14:20:22 +09:00
Yu Watanabe 27ff0490e6 network: rename IPv6PrefixDelegation= to IPv6SendRA= 2020-10-19 14:55:18 +09:00
Yu Watanabe 4afd986753 network: introduce Announce= in [DHCPv6PrefixDelegation] 
When disabled, the delegated prefixes are not emit by RA.

Closes #17353.
 2020-10-19 12:09:36 +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 db5756f3f3 network: sort and rename elements in Network object 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 7abe175c00 network: also unref IPv4 ACD clients in Address objects 
This should not change any behavior, as currently link_free_engines() is
always called after all addresses are dropped. But the function may be
used in other places in the future. So, let's also stop the clients.
 2020-10-15 08:11:32 +09:00
Yu Watanabe 1c49487284 network: move link_lldp_emit_stop() to link_free_engines() 
This should not change any behavior.
 2020-10-15 08:06:04 +09:00
Yu Watanabe 9cc65242d7 network: also stop LLDP client in link_stop_engines() 2020-10-15 07:57:33 +09:00
Yu Watanabe 2a99eed02c network: stop DHCPv4 server in link_stop_clients() 
Then, rename link_stop_clients() -> link_stop_engines().
 2020-10-15 07:56:30 +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 c6a7531e0e network: voidify sd_ipv4acd_stop() at one place 2020-10-15 07:39:40 +09:00
Yu Watanabe 84add3cd2b network: drop conditions to check existence of each engine 2020-10-15 07:38:45 +09:00
Yu Watanabe 956dbf361b network: warn if dynamic gateway is specified but corresponding protocol is disabled 2020-10-15 07:07:46 +09:00
Yu Watanabe 22d37e5df6 network: introduce network_adjust_dhcp() 2020-10-15 07:06:58 +09:00
Yu Watanabe 3773eb5485 network: introduce network_adjust_ipv6_accept_ra() 2020-10-15 07:06:36 +09:00
Yu Watanabe c27abcf4fb network: when Gateway=_dhcp4, set several properties based on lease if they are not explicitly specified 
Before this commit, event when Gateway=_dhcp4 or _ra is set, the
route was configured with 'protocol static', and other properties
specified by RouteTable=, RouteMTU=, or etc, were ignored.

This commit makes set the route protocol based on the protocol the
gateway address is obtained, and apply other settings if it is not
explicitly specified in the [Route] section.
 2020-10-15 07:06:23 +09:00
Yu Watanabe 5bb80a4603 network: determine a [Route] section will be used or not by gateway family instead of route family 
By this commit, user can configure dynamic IPv6 Gateway with IPv4
destination.
 2020-10-15 07:06:03 +09:00
Yu Watanabe c3d679c43f network: when Gateway=_dhcp, assume gateway family based on other settings 2020-10-15 07:05:58 +09:00
Yu Watanabe b8caa4ef34 network: rename Gateway=_dhcp6 -> Gateway=_ipv6ra 2020-10-15 07:04:02 +09:00
Yu Watanabe 1a3a6309a7 network: rename gateway_from_dhcp -> gateway_from_dhcp_or_ra 
As for IPv6 case gateway is given by RA.
 2020-10-15 06:58:53 +09:00
Yu Watanabe fd8f865c9f
Merge pull request #17342 from yuwata/network-dhcp-ipv4-acd-fixes 
network: fixes several issues in IPv4 DAD for DHCP4
 2020-10-14 23:12:41 +09:00
Zbigniew Jędrzejewski-Szmek 540e0bad3e
Merge pull request #17316 from yuwata/network-address-ipv4-peer-issue-17304 
network: directly compare with in_addr element for IPv4 case
 2020-10-14 15:02:14 +02:00
Yu Watanabe dfc637d0ff
Merge pull request #17341 from yuwata/sd-dhcp-client-fix-eexist-issue-16964 
sd-dhcp: make sd_dhcp_client_set_request_option() not return -EEXIST
 2020-10-14 18:55:39 +09:00
Yu Watanabe 0e569a439a network: start dynamic addressing clients like DHCP after setting netdevs 
The function link_acquire_conf() may make the link state 'configuring'
when DHCP6 PD is enabled. Previously link_acquire_conf() was called
before link_enter_join_netdev(), and thus the assertion in the function
might be triggered.

Fixes #17329.
 2020-10-14 10:52:02 +02:00
Yu Watanabe 5431227400 network: update MAC address in IPv4ACD client for DHCP4 2020-10-14 15:38:29 +09:00
Yu Watanabe a7df5cae54 network: also stop IPv4ACD client in link_stop_clients() 2020-10-14 15:38:29 +09:00
Yu Watanabe 66f507e1ba network: stop IPv4ACD client for DHCPv4 when lease is exprired 2020-10-14 15:38:29 +09:00
Yu Watanabe 10fa21c0dc network: move IPv4ACD client for DHCPv4 from Network to Link object 
A .network file may matches multiple interfaces.
 2020-10-14 15:38:29 +09:00
Yu Watanabe 8ff85383b4 network: voidify link_stop_clients() in link_enter_failed() 2020-10-14 15:38:29 +09:00
Yu Watanabe 4eb6a826b8 network: drop unused condition 2020-10-14 13:02:46 +09:00
Yu Watanabe b1476b5210 network: constify arguments 2020-10-13 20:30:38 +09:00
Yu Watanabe fe841414ef network: read peer address, label, broadcast from rtnl message 
Then, Address objects in Network and Link can be easily compared by
address_equal().
 2020-10-13 20:30:35 +09:00
Yu Watanabe 9b9c5fff16 network: directly compare with in_addr element for IPv4 case 
When peer address is set, address_compare_func() (or address_equal())
does not work in link_is_static_address_configured(), as an Address object
stored in a Link does not contain peer addresses. So, we need to also
compare with in_addr element for IPv4 case.

Fixes #17304.
 2020-10-13 20:30:16 +09:00
Frantisek Sumsal d46b79bbe0 tree-wide: drop if braces around single line expressions as well 2020-10-09 15:11:55 +02:00
Frantisek Sumsal d7a0f1f4f9 tree-wide: assorted coccinelle fixes 2020-10-09 15:02:23 +02:00
Zbigniew Jędrzejewski-Szmek 081b300976 networkd: add assert to appease coverity 
The code was OK, but not obviously so. Let's add an assert to help a
human or nonhuman reader figure it out.

Coverity CID#1433224.
 2020-10-09 08:14:54 +02:00
Yu Watanabe ceea6c1aff network: introduce IPV4_ADDRESS_FMT_STR macro 
This also moves ADDRESS_FMT_VAL() macro to networkd-address.h, and
renames it to IPV4_ADDRESS_FMT_VAL().
 2020-10-08 02:51:23 +09:00