Kristoffer Dalby e638cbc9b9 integration/tsic: accept via peer-relay in non-direct ping check ...

When WithPingUntilDirect(false) is set, the Ping helper should accept
any indirect path, but the substring check only matched "via DERP" and
"via relay". Tailscale peer relay pings output

    pong from ... via peer-relay(ip:port:vni:N) in Nms

which does not contain the "via relay" substring and was therefore
rejected as errTailscalePingNotDERP. TestGrantCapRelay Phase 4 never
passed because of this: even when the data plane was healthy the
helper returned an error.

Commit abe1a3e7 attempted to fix this by adding "via relay" alongside
"via DERP" but missed the "peer-" prefix used by peer relay output.

Add an explicit "via peer-relay" substring check so peer relay pongs
are accepted alongside DERP and plain relay pongs.

Updates #2180

2026-04-08 13:00:22 +01:00

..

tsic.go

integration/tsic: accept via peer-relay in non-direct ping check

2026-04-08 13:00:22 +01:00