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Author SHA1 Message Date
Yu Watanabe cfcc85bbca sd-dhcp6-client: log message is processed before state is changed 2022-02-14 14:57:34 +09:00
Yu Watanabe c50c9e509f sd-dhcp6-client: move client_timeout_resend() and client_set_state() 
These are deeply related to client_message_send(). Hence, move them near
the function.
 2022-02-14 14:57:34 +09:00
Yu Watanabe 0eca25ba00 sd-dhcp6-client: move client_ensure_iaid() 
No functional change.
 2022-02-14 14:57:34 +09:00
Yu Watanabe af2b484141 sd-dhcp6-client: merge client_start() and client_reset() 2022-02-14 14:56:54 +09:00
Yu Watanabe ec7baf998d sd-dhcp6-client: use event_reset_time_relative() at one more place 2022-02-14 14:54:08 +09:00
Yu Watanabe 22ad018b5e sd-dhcp6-client: max_retransmit_count is only used when client is in DHCP6_STATE_REQUEST 2022-02-14 14:54:08 +09:00
Yu Watanabe 0f3b8b809c sd-dhcp6-client: drop unnecessary event_source_disable() 
The event source will be soon re-enabled in the same function.

The function client_timeout_resend() may return earlier without
re-enabling the timer souce. However,
- the timer event source is one shot by default. Hence, it is not
  necessary to disable in the callback function,
- when it returns early, then client_set_state() or client_stop() is
  called before return, and they re-ernable or disable the timer.
 2022-02-14 14:51:19 +09:00
Yu Watanabe 3bb18e707c sd-dhcp6-client: set lease expiration timer in client_enter_bound_state() 
The timer must be active until the client get re-enter bound state,
and the timeout must be determined by the lease acquired when entering
the bound state.
 2022-02-14 14:45:14 +09:00
Yu Watanabe 30b31359b0 sd-dhcp6-client: drop unnecessary assignment 2022-02-14 14:45:14 +09:00
Yu Watanabe 8ef959cd09 sd-dhcp6-client: initialize IO event source in sd_dhcp6_client_start() 2022-02-14 14:45:14 +09:00
Yu Watanabe f814cd80de sd-dhcp6-client: make state transition stricter 2022-02-14 14:45:14 +09:00
Yu Watanabe c2c878d806 sd-dhcp6-client: prohibit spurious state transition 
Previously, `client_set_state(client, DHCP6_STATE_STOPPED)` might make
the client enter the SOLICIT state.
 2022-02-14 14:45:14 +09:00
Yu Watanabe 220a88ca75 sd-dhcp6-client: disable T1 timer on T2 
Otherwise, the client may be enter RENEW state after REBIND state.
 2022-02-14 14:45:14 +09:00
Yu Watanabe c41bdb17fc sd-dhcp6-client: call client_notify() in client_enter_bound_state() 2022-02-14 14:45:14 +09:00
Yu Watanabe cdf3d8c584 sd-dhcp6-client: fix lifetime handling 
This fixes the following issues:
- if T1 is finite and T2 is infinite, then the timer for T1 was not
  enabled,
- after T1 and T2 are randomized, T1 may be longer than T2.
 2022-02-14 14:45:07 +09:00
Yu Watanabe 1d6cb4ce2a sd-dhcp6-client: use event_reset_time_relative() 2022-02-14 14:43:45 +09:00
Yu Watanabe 02354ee738 sd-dhcp6-client: introduce client_enter_bound_state() 
To make client_set_state() smaller. This should not change any behavior.
 2022-02-14 14:43:45 +09:00
Yu Watanabe cc5184823f sd-dhcp6-client: fix overflow in calculating timeout value 2022-02-14 14:43:45 +09:00
Yu Watanabe d0875a07dd sd-dhcp6-client: disable event source when client is stopped or freed 2022-02-14 14:43:45 +09:00
Yu Watanabe 7771233127 sd-dhcp6-client: use in6_addr_to_string() 2022-02-14 14:43:45 +09:00
Yu Watanabe 4db6334c9a sd-dhcp6-client: stop client on error in client state transition 2022-02-14 14:43:45 +09:00
Yu Watanabe bfa1139af4 sd-dhcp6-client: add missing one more error handling 2022-02-14 14:43:45 +09:00
Yu Watanabe 06d5e856f8 sd-dhcp6-client: rename client_start() -> client_set_state() 2022-02-14 14:43:45 +09:00
Yu Watanabe 07a3b3408b sd-dhcp6-client: introduce client_process_*() 
This is mostly for shortening `client_receive_message()`.

This also fixes the following:
- do not trigger SD_DHCP6_CLIENT_EVENT_INFORMATION_REQUEST notification
  when non-reply message,
- add several missing error handlings caused in client_start().
 2022-02-14 14:43:45 +09:00
Yu Watanabe 0123b2dbac sd-dhcp6-client: fix possible unaligned read or write 2022-02-14 14:43:45 +09:00
Yu Watanabe 16347c15d8 sd-dhcp6-client: voidify client_reset() 2022-02-14 14:43:45 +09:00
Yu Watanabe 65ece4c85b sd-dhcp6-client: introduce dhcp6_lease_new_from_message() 2022-02-14 14:43:45 +09:00
Yu Watanabe c930925841 sd-dhcp6-client: use structured initializer 2022-02-14 14:43:45 +09:00
Yu Watanabe f4fbea7a0f sd-dhcp6-lease: unify lease lifetime calculation 2022-02-14 14:43:45 +09:00
Yu Watanabe 126277aceb sd-dhcp6-client: always use ENODATA when a lease does not have requested data 2022-02-14 14:43:45 +09:00
Yu Watanabe 29858a0f9e sd-dhcp6-client: unify dhcp6_option_append_{ia,pd}() 2022-02-14 14:43:45 +09:00
Yu Watanabe 877bfc78fd sd-dhcp6-client: store PD prefix hint in ia_pd 
And allows to specify multiple hints.
 2022-02-14 14:43:45 +09:00
Yu Watanabe e5b0b87f51 sd-dhcp6-client: introduce dhcp6_ia_free() 2022-02-14 14:43:45 +09:00
Yu Watanabe 4b0f27173c sd-dhcp6-client: unify IA option header 
This also fixes possible unaligned read of message.
 2022-02-14 14:43:45 +09:00
Yu Watanabe 93bd7c4192 sd-dhcp6-lease: reset client or server ID when length is zero 
Addresses https://github.com/systemd/systemd/pull/22406#issuecomment-1029391091.
 2022-02-14 14:43:45 +09:00
Yu Watanabe 049fddfa7d sd-dhcp6-lease: convert assert_return() -> assert() in non-public functions 2022-02-14 14:43:45 +09:00
Yu Watanabe 7c999d38fa sd-dhcp6-client: rename ia -> ia_na, pd -> ia_pd in sd_dhcp6_lease 
The previous naming is quite misleading.
 2022-02-14 14:43:45 +09:00
Yu Watanabe 43b7a412b1 sd-dhcp6-client: fix typo ia_pd -> ia_na 
Fortunately, currently both ia_pd and ia_na in sd_dhcp6_client are
equivalent now.
 2022-02-14 14:43:45 +09:00
Yu Watanabe 5e4d135c60 sd-dhcp6-client: introduce two helpers to create message 2022-02-14 14:43:45 +09:00
Yu Watanabe 6fcf356b9a sd-dhcp6-client: trigger assertion whn invalid IA type is provided 
If the condition hits, then it is an error in coding, instead of a user
misconfiguration or invalid receivd message.
 2022-02-14 14:40:57 +09:00
Yu Watanabe 8448321571 sd-dhcp6-client: add missing address existence check 
This adds similar check as 58da18251f.
 2022-02-10 21:50:02 +09:00
Yu Watanabe 2d88df457a Merge pull request #22471 from yuwata/network-bridge-vlan-protocol 
network: bridge: fix vlan protocol
 2022-02-10 20:40:04 +09:00
Yu Watanabe ac7e18be76 Merge pull request #22452 from yuwata/network-ipv6ll 
network: use sysctl to set IPv6LL address generation mode when the interface is already up
 2022-02-10 20:38:56 +09:00
Yu Watanabe b6d5dab7bb test-network: add missing tests for bridge properties 2022-02-10 18:04:34 +09:00
Yu Watanabe 6eb35be8e0 network: bridge: fix endian of vlan protocol 
Fixes #22469.
 2022-02-10 17:47:17 +09:00
Yu Watanabe 2becdbccd1 test-network: add testcase for re-generating IPv6LL address 2022-02-10 17:35:48 +09:00
Joerie de Gram 77d65e5659 network: attempt to trigger kernel IPv6LL address generation 
Try to ensure kernel IPv6 link local address generation occurs by
setting the per-if addr_gen_mode sysctl when the link is already up,
instead of the netlink interface (IFLA_INET6_ADDR_GEN_MODE).

The netlink setting is sufficient in cases where the interface is not
yet up when networkd configures an interface - bringing the interface
up will trigger in-kernel address generation.

If the interface is already up, yet the interface has no IPv6LL assigned
setting IFLA_INET6_ADDR_GEN_MODE has no effect.

Writing the addr_gen_mode sysctl is a best effort attempt at triggering
address generation regardless of interface state because it also works
in cases where the interface is already up.

Fixes #22424.
 2022-02-10 17:35:41 +09:00
Yu Watanabe 2b25f4eb23 network: move link_set_ipv6ll_stable_secret() to networkd-ipv6ll.c 2022-02-10 17:34:06 +09:00
Yu Watanabe 05b8fc498e network: skip to set IPv6LL address generation mode if the requested mode is already set 2022-02-10 17:34:06 +09:00
Yu Watanabe 6614116458 network: use log_link_warning_errno() or friends where applicable 2022-02-10 17:34:06 +09:00