summaryrefslogtreecommitdiffhomepage
path: root/tka/sync.go
AgeCommit message (Collapse)AuthorFilesLines
2026-01-23all: remove AUTHORS file and references to itWill Norris1-1/+1
This file was never truly necessary and has never actually been used in the history of Tailscale's open source releases. A Brief History of AUTHORS files --- The AUTHORS file was a pattern developed at Google, originally for Chromium, then adopted by Go and a bunch of other projects. The problem was that Chromium originally had a copyright line only recognizing Google as the copyright holder. Because Google (and most open source projects) do not require copyright assignemnt for contributions, each contributor maintains their copyright. Some large corporate contributors then tried to add their own name to the copyright line in the LICENSE file or in file headers. This quickly becomes unwieldy, and puts a tremendous burden on anyone building on top of Chromium, since the license requires that they keep all copyright lines intact. The compromise was to create an AUTHORS file that would list all of the copyright holders. The LICENSE file and source file headers would then include that list by reference, listing the copyright holder as "The Chromium Authors". This also become cumbersome to simply keep the file up to date with a high rate of new contributors. Plus it's not always obvious who the copyright holder is. Sometimes it is the individual making the contribution, but many times it may be their employer. There is no way for the proejct maintainer to know. Eventually, Google changed their policy to no longer recommend trying to keep the AUTHORS file up to date proactively, and instead to only add to it when requested: https://opensource.google/docs/releasing/authors. They are also clear that: > Adding contributors to the AUTHORS file is entirely within the > project's discretion and has no implications for copyright ownership. It was primarily added to appease a small number of large contributors that insisted that they be recognized as copyright holders (which was entirely their right to do). But it's not truly necessary, and not even the most accurate way of identifying contributors and/or copyright holders. In practice, we've never added anyone to our AUTHORS file. It only lists Tailscale, so it's not really serving any purpose. It also causes confusion because Tailscalars put the "Tailscale Inc & AUTHORS" header in other open source repos which don't actually have an AUTHORS file, so it's ambiguous what that means. Instead, we just acknowledge that the contributors to Tailscale (whoever they are) are copyright holders for their individual contributions. We also have the benefit of using the DCO (developercertificate.org) which provides some additional certification of their right to make the contribution. The source file changes were purely mechanical with: git ls-files | xargs sed -i -e 's/\(Tailscale Inc &\) AUTHORS/\1 contributors/g' Updates #cleanup Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d Signed-off-by: Will Norris <will@tailscale.com>
2025-11-26tstest/integration: add integration test for Tailnet LockAlex Chan1-0/+35
This patch adds an integration test for Tailnet Lock, checking that a node can't talk to peers in the tailnet until it becomes signed. This patch also introduces a new package `tstest/tkatest`, which has some helpers for constructing a mock control server that responds to TKA requests. This allows us to reduce boilerplate in the IPN tests. Updates tailscale/corp#33599 Signed-off-by: Alex Chan <alexc@tailscale.com>
2025-11-14various: adds missing apostrophes to commentsAlex Chan1-3/+3
Updates #cleanup Change-Id: I7bf29cc153c3c04e087f9bdb146c3437bed0129a Signed-off-by: Alex Chan <alexc@tailscale.com>
2025-09-12all: add ts_omit_tailnetlock as a start of making it build-time modularBrad Fitzpatrick1-0/+2
Updates #17115 Change-Id: I6b083c0db4c4d359e49eb129d626b7f128f0a9d2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2024-04-16all: use Go 1.22 range-over-intBrad Fitzpatrick1-1/+1
Updates #11058 Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-27all: update copyright and license headersWill Norris1-3/+2
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
2022-08-26tka: make storage a parameter rather than an Authority struct memberTom DNetto1-30/+26
Updates #5435 Based on the discussion in #5435, we can better support transactional data models by making the underlying storage layer a parameter (which can be specialized for the request) rather than a long-lived member of Authority. Now that Authority is just an instantaneous snapshot of state, we can do things like provide idempotent methods and make it cloneable, too. Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-07-19tka: implement synchronization mechanicsTom DNetto1-0/+251
This PR implements the synchronization mechanics for TKA: generating a SyncOffer, processing a SyncOffer to find an intersection, and computing the set of AUMs that should be transmitted to effect convergence. This is the final PR implementing core mechanics for TKA. Signed-off-by: Tom DNetto <tom@tailscale.com>