Code

implement path migration#554

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kazuho merged 73 commits intomasterh2o/quicly:masterfrom kazuho/path-migrationh2o/quicly:kazuho/path-migrationCopy head branch name to clipboardMay 14, 2024

+1,273-531

Commits

Commits on May 16, 2023

• respect local address

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• always respect local address (if available)

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• drop packets with invalid server address tuple

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Commits on Jun 7, 2023

• restore entire state upon protocol violation rather than cids[0], now that we could be using multiple CIDs at the same time

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• [cli] reset num_resp_received if -i is used

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• [cli] switch local port upon SIGUSR1, pass current local port to quicly

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Commits on Jun 8, 2023

• implement path migration

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• refine comment

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• Merge branch 'kazuho/send_ack_at-is-unreliable-timer-for-control-frames' into kazuho/path-migration

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• add failing test

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Commits on Jun 9, 2023

• fix the issue; assuming that the peer issues NCID in sequence, we can send RCID for all those with sequence no greater than retire_prior_to

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• no longer need to detect NCIDs below largest retire_prior_to now that we send RCID frames up front

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• check CID set at the end

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Commits on Jun 13, 2023

• do not send probes too early when probing multiple paths simultaneously

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• exponential back-off of probes

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• always set ret

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• recalculate send_probe_at, as we need to find min(path_request.send_at) among all the paths

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• fix hot loop until application write key becomes available

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• update send_probe_at also when PATH_RESPONSE is sent

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• quicly_debug_printf emit via QUICLY_LOG_CONN as well

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• recalc send_probe_at when paths are removed / PATH_RESPONSE is scheduled

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• refine logging

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• if paths[1] is NULL that should be used

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• log either "promote" or "free"

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• [cli] handle interrupts in the while-EINTR loop

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• add high-level stat counters for path migration

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• stop validating new paths after defined amount of failures

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• record acks received for packets that were sent after path migration

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• add test

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• pad packets carrying PATH_CHALLENGE / PATH_RESPONSE to full-size

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• Revert "record acks received for packets that were sent after path migration"

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• rather, record number of packets sent on promoted paths and those acked

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• record path migration elicits

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• record when path migration is elicited (i.e., receiving non-probing packets on a non-active path)

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• record path closure due to having no spare CIDs

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• consistency with the probe name

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Commits on Jun 14, 2023

• fix UAF

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• clang-format

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Commits on Jun 22, 2023

• [cli] merge the socket creation logic

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Commits on Jun 23, 2023

• [cli] regonize -B option when running as client

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• add test with client issuing CIDs

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• retire CID as part of path retirement

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• check that CID changes on new path

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• use correct CID

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• Merge branch 'kazuho/path-migration' into kazuho/retire-cid-during-drop

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Commits on Jun 27, 2023

• Merge pull request #553 from h2o/kazuho/retire-cid-during-drop

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Commits on Jun 28, 2023

• now that we call new_socket there is no nee to set O_NONBLOCK separately

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Commits on Mar 15, 2024

• Merge branch 'master' into kazuho/path-migration

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Commits on Mar 16, 2024

• fix per-path counting

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• once path validation has failed for specified occasions, do not even try to decrypt packets arriving on new paths, as doing so would allow an attacker to race duplicated packets to prevent those ar…

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• clarify what means to set this value to zero

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Commits on Apr 8, 2024

• Merge branch 'master' into kazuho/path-migration

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Commits on Apr 10, 2024

• reset CC upon path migration

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Commits on Apr 15, 2024

• upon path promotion, ignore signals related to the old path (TODO reset loss recovery)

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Commits on Apr 16, 2024

• [cli] when running as client and receiving SIGTERM, gracefully shutdown

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• add the capability to collect output of spawned server process

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Commits on Apr 18, 2024

• apply CMSG_SPACE to each CMSG

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• indent

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• preserve the behavior regardless of finalize being used

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• add test asserting that CC goes back to slow start upon path migration

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Commits on Apr 22, 2024

• when new path is confirmed, mark all data sent on the original path for retransmission

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Commits on Apr 23, 2024

• when promoting the path, reset RTT estimate

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• use udpfw for rebind tests

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• Revert "[cli] merge the socket creation logic"

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Commits on Apr 25, 2024

• fix broken build on systems wo. dtrace

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• Merge branch 'master' into kazuho/path-migration

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• correctly refer to constant

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• add wait for test stability

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• refactor (with the side-effect of using jumpstart on the client side too, if configured)

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• refactor so that the state of most recent attempt to jumpstart will be reflected in stats

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Commits on Apr 26, 2024

• jumpstart when path is promoted

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• reset rate meter when promoting a new path

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Commits on May 13, 2024

• Merge branch 'master' into kazuho/path-migration

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