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tailscale/wgengine
James Tucker ffd89ac66b wgengine/magicsock: improve endpoint selection for WireGuard peers with rx time
If we don't have the ICMP hint available, such as on Android, we can use
the signal of rx traffic to bias toward a particular endpoint.

We don't want to stick to a particular endpoint for a very long time
without any signals, so the sticky time is reduced to 1 second, which is
large enough to avoid excessive packet reordering in the common case,
but should be small enough that either rx provides a strong signal, or
we rotate in a user-interactive schedule to another endpoint, improving
the feel of failover to other endpoints.

Updates #8999

Cherry picked from 1a8b7af39036443cc328513746324715108a1292

Co-authored-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>

Signed-off-by: James Tucker <james@tailscale.com>
Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
2 years ago
..
bench all: move network monitoring from wgengine/monitor to net/netmon 3 years ago
capture various: add golangci-lint, fix issues (#7905) 3 years ago
filter tailcfg,ipn/ipnlocal,wgengine: add values to PeerCapabilities 3 years ago
magicsock wgengine/magicsock: improve endpoint selection for WireGuard peers with rx time 2 years ago
netlog wgengine/netlog: fix nil pointer dereference in logtail (#8598) 3 years ago
netstack ipn/ipnlocal,wgengine/netstack: move LocalBackend specifc serving logic to LocalBackend 3 years ago
router 1.48 cherry-picks for nftables (#8989) 2 years ago
wgcfg tailcfg,etc: remove unused tailcfg.Node.KeepAlive field 3 years ago
wgint all: update copyright and license headers 3 years ago
wglog all: update copyright and license headers 3 years ago
winnet all: update copyright and license headers 3 years ago
mem_ios.go all: update copyright and license headers 3 years ago
pendopen.go wgengine: adjust debug logging for WireGuard-only peers 2 years ago
userspace.go wgengine,ipn,cmd/tailscale: add size option to ping (#8739) 2 years ago
userspace_ext_test.go tsd: add package with System type to unify subsystem init, discovery 3 years ago
userspace_test.go all: update copyright and license headers 3 years ago
watchdog.go wgengine,ipn,cmd/tailscale: add size option to ping (#8739) 2 years ago
watchdog_js.go all: update copyright and license headers 3 years ago
watchdog_test.go all: update copyright and license headers 3 years ago
wgengine.go wgengine,ipn,cmd/tailscale: add size option to ping (#8739) 2 years ago