8 Commits (ff97a97f088e49346a99ec9c8bcf2a2d6525c685)

Author	SHA1	Message	Date
Josh Bleecher Snyder	85184a58ed	wgengine/wgcfg: recover from mismatched PublicKey/Endpoints ... In rare circumstances (tailscale/corp#3016), the PublicKey and Endpoints can diverge. This by itself doesn't cause any harm, but our early exit in response did, because it prevented us from recovering from it. Remove the early exit. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
David Anderson	41da7620af	go.mod: update wireguard-go to pick up roaming toggle ... wgengine/wgcfg: introduce wgcfg.NewDevice helper to disable roaming at all call sites (one real plus several tests). Fixes tailscale/corp#3016. Signed-off-by: David Anderson <danderson@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	c467ed0b62	wgengine/wgcfg: always close io.Pipe ... In DeviceConfig, we did not close r after calling FromUAPI. If FromUAPI returned early due to an error, then it might not have read all the data that IpcGetOperation wanted to write. As a result, IpcGetOperation could hang, as in #3220. We were also closing the wrong end of the pipe after IpcSetOperation in ReconfigDevice. To ensure that we get all available information to diagnose such a situation, include all errors anytime something goes wrong. This should fix the immediate crashing problem in #3220. We'll then need to figure out why IpcGetOperation was failing. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
David Anderson	a9c78910bd	wgengine/wgcfg: convert to use new node key type. ... Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Josh Bleecher Snyder	1ece91cede	go.mod: upgrade wireguard-windows, de-fork wireguard-go ... Pull in the latest version of wireguard-windows. Switch to upstream wireguard-go. This requires reverting all of our import paths. Unfortunately, this has to happen at the same time. The wireguard-go change is very low risk, as that commit matches our fork almost exactly. (The only changes are import paths, CI files, and a go.mod entry.) So if there are issues as a result of this commit, the first place to look is wireguard-windows changes. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	777c816b34	wgengine/wgcfg: return better errors from DeviceConfig, ReconfigDevice ... Prefer the error from the actual wireguard-go device method call, not {To,From}UAPI, as those tend to be less interesting I/O errors. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	1f6c4ba7c3	wgengine/wgcfg: prevent ReconfigDevice from hanging on error ... When wireguard-go's UAPI interface fails with an error, ReconfigDevice hangs. Fix that by buffering the channel and closing the writer after the call. The code now matches the corresponding code in DeviceConfig, where I got it right. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	fe7c3e9c17	all: move wgcfg from wireguard-go ... This is mostly code movement from the wireguard-go repo. Most of the new wgcfg package corresponds to the wireguard-go wgcfg package. wgengine/wgcfg/device{_test}.go was device/config{_test}.go. There were substantive but simple changes to device_test.go to remove internal package device references. The API of device.Config (now wgcfg.DeviceConfig) grew an error return; we previously logged the error and threw it away. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago