8 Commits (af5a5864631931371eb1da70dd27bd6334aea6ae)

Author	SHA1	Message	Date
valscale	f314fa4a4a	prober: fix data race when altering derpmap (#8397) ... Move the clearing of STUNOnly flag to the updateMap() function. Fixes #8395 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
valscale	88097b836a	prober: allow monitoring of nodes marked as STUN only in default derpmap (#8391) ... prober uses NewRegionClient() to connect to a derper using a faked up single-node region, but NewRegionClient() fails to connect if there is no non-STUN only client in the region. Set the STUN only flag to false before we call NewRegionClient() so we can monitor nodes marked as STUN only in the default derpmap. Updates #11492 Signed-off-by: Val <valerie@tailscale.com>	1 year ago
Mihai Parparita	7330aa593e	all: avoid repeated default interface lookups ... On some platforms (notably macOS and iOS) we look up the default interface to bind outgoing connections to. This is both duplicated work and results in logspam when the default interface is not available (i.e. when a phone has no connectivity, we log an error and thus cause more things that we will try to upload and fail). Fixed by passing around a netmon.Monitor to more places, so that we can use its cached interface state. Fixes #7850 Updates #7621 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Andrew Dunham	280255acae	various: add golangci-lint, fix issues (#7905) ... This adds an initial and intentionally minimal configuration for golang-ci, fixes the issues reported, and adds a GitHub Action to check new pull requests against this linter configuration. Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I8f38fbc315836a19a094d0d3e986758b9313f163	2 years ago
Anton Tolchanov	e59dc29a55	prober: log client pubkeys on derp mesh probe failures ... Updates https://github.com/tailscale/corp/issues/9916 Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago
Anton Tolchanov	100d8e909e	cmd/derpprobe: migrate to the prober framework ... `prober.DERP` was created in #5988 based on derpprobe. Having used it instead of derpprobe for a few months, I think we have enough confidence that it works and can now migrate derpprobe to use the prober framework and get rid of code duplication. A few notable changes in behaviour: - results of STUN probes over IPv4 and IPv6 are now reported separately; - TLS probing now includes OCSP verification; - probe names in the output have changed; - ability to send Slack notification from the prober has been removed. Instead, the prober now exports metrics in Expvar (/debug/vars) and Prometheus (/debug/varz) formats. Fixes https://github.com/tailscale/corp/issues/8497 Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago
Will Norris	71029cea2d	all: update copyright and license headers ... 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>	2 years ago
Anton Tolchanov	69f61dcad8	prober: add a DERP probe manager based on derpprobe ... This ensures that each DERP server is probed individually (TLS and STUN) and also manages per-region mesh probing. Actual probing code has been copied from cmd/derpprobe. Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago