8 Commits

Include renames

Author	SHA1	Message	Date
Kristoffer Dalby	0f6d312ada	all: upgrade to Go 1.26rc2 and modernize codebase ... This commit upgrades the codebase from Go 1.25.5 to Go 1.26rc2 and adopts new language features. Toolchain updates: - go.mod: go 1.25.5 → go 1.26rc2 - flake.nix: buildGo125Module → buildGo126Module, go_1_25 → go_1_26 - flake.nix: build golangci-lint from source with Go 1.26 - Dockerfile.integration: golang:1.25-trixie → golang:1.26rc2-trixie - Dockerfile.tailscale-HEAD: golang:1.25-alpine → golang:1.26rc2-alpine - Dockerfile.derper: golang:alpine → golang:1.26rc2-alpine - .goreleaser.yml: go mod tidy -compat=1.25 → -compat=1.26 - cmd/hi/run.go: fallback Go version 1.25 → 1.26rc2 - .pre-commit-config.yaml: simplify golangci-lint hook entry Code modernization using Go 1.26 features: - Replace tsaddr.SortPrefixes with slices.SortFunc + netip.Prefix.Compare - Replace ptr.To(x) with new(x) syntax - Replace errors.As with errors.AsType[T] Lint rule updates: - Add forbidigo rules to prevent regression to old patterns	2026-02-08 12:35:23 +01:00
Kristoffer Dalby	3b4b9a4436	hscontrol: fix tag updates not propagating to node self view ... When SetNodeTags changed a node's tags, the node's self view wasn't updated. The bug manifested as: the first SetNodeTags call updates the server but the client's self view doesn't update until a second call with the same tag. Root cause: Three issues combined to prevent self-updates: 1. SetNodeTags returned PolicyChange which doesn't set OriginNode, so the mapper's self-update check failed. 2. The Change.Merge function didn't preserve OriginNode, so when changes were batched together, OriginNode was lost. 3. generateMapResponse checked OriginNode only in buildFromChange(), but PolicyChange uses RequiresRuntimePeerComputation which bypasses that code path entirely and calls policyChangeResponse() instead. The fix addresses all three: - state.go: Set OriginNode on the returned change - change.go: Preserve OriginNode (and TargetNode) during merge - batcher.go: Pass isSelfUpdate to policyChangeResponse so the origin node gets both self info AND packet filters - mapper.go: Add includeSelf parameter to policyChangeResponse Fixes #2978	2026-01-20 10:13:47 +01:00
Kristoffer Dalby	5767ca5085	change: smarter change notifications ... This commit replaces the ChangeSet with a simpler bool based change model that can be directly used in the map builder to build the appropriate map response based on the change that has occured. Previously, we fell back to sending full maps for a lot of changes as that was consider "the safe" thing to do to ensure no updates were missed. This was slightly problematic as a node that already has a list of peers will only do full replacement of the peers if the list is non-empty, meaning that it was not possible to remove all nodes (if for example policy changed). Now we will keep track of last seen nodes, so we can send remove ids, but also we are much smarter on how we send smaller, partial maps when needed. Fixes #2389 Signed-off-by: Kristoffer Dalby <kristoffer@dalby.cc>	2025-12-16 10:12:36 +01:00
Kristoffer Dalby	7fb0f9a501	batcher: send endpoint and derp only updates. (#2856)	2025-11-13 20:38:49 +01:00
Kristoffer Dalby	ed3a9c8d6d	mapper: send change instead of full update (#2775)	2025-09-17 14:23:21 +02:00
Kristoffer Dalby	233dffc186	lint and leftover ... Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	2025-09-09 09:40:00 +02:00
Kristoffer Dalby	9d236571f4	state/nodestore: in memory representation of nodes ... Initial work on a nodestore which stores all of the nodes and their relations in memory with relationship for peers precalculated. It is a copy-on-write structure, replacing the "snapshot" when a change to the structure occurs. It is optimised for reads, and while batches are not fast, they are grouped together to do less of the expensive peer calculation if there are many changes rapidly. Writes will block until commited, while reads are never blocked. Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	2025-09-09 09:40:00 +02:00
Kristoffer Dalby	a058bf3cd3	mapper: produce map before poll (#2628)	2025-07-28 11:15:53 +02:00