Brad Fitzpatrick fe91043315 wgengine/magicsock, net/netcheck, feature/featuretags: add udptransport and nattraversal features ...

Contining the trend of making everything be optional that could
possibly be optional, this makes the magicsock UDP underlay transport
be optional. (mostly replacing a bunch of GOOS != "js" checks in the process)

Omitting udptransport (ts_omit_udptransport) makes magicsock DERP-only: no
UDP sockets, no advertised endpoints, and netcheck measures DERP latency
over HTTPS. Omitting only nattraversal keeps disco ping/pong to peers'
advertised endpoints but drops STUN, call-me-maybe, the peer relay client,
the endpoint tracker, and UDP lifetime probing.

Both are plain linker dead-code elimination via buildfeatures
constants. (as oppposed to moving the code all over into feature
packages and indirecting through hooks) The minimal linux/amd64
tailscaled shrinks by 258 KB without nattraversal and 561 KB without
both.

Updates #12614

Change-Id: Ife10804b48a168d9481e4321c18ed8fc85fa71f1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

2026-09-29 06:09:17 -07:00

..

buildfeatures.go

staticcheck.conf: enable ST1000 to check package docs (#20787)

2026-08-08 13:02:06 -07:00

feature_ace_disabled.go

all: remove AUTHORS file and references to it

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feature_ace_enabled.go

all: remove AUTHORS file and references to it

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feature_acme_disabled.go

all: remove AUTHORS file and references to it

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feature_acme_enabled.go

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feature_advertiseexitnode_disabled.go

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feature_advertiseexitnode_enabled.go

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feature_advertiseroutes_disabled.go

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feature_advertiseroutes_enabled.go

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feature_androidbin_disabled.go

feature/androidbin: make netmon and TLS work in raw binaries on Android

2026-09-08 11:41:54 -07:00

feature_androidbin_enabled.go

feature/androidbin: make netmon and TLS work in raw binaries on Android

2026-09-08 11:41:54 -07:00

feature_androiddns_disabled.go

feature/androiddns: add dnsproxyd DNS resolution for standalone Android binaries

2026-09-07 18:35:31 -07:00

feature_androiddns_enabled.go

feature/androiddns: add dnsproxyd DNS resolution for standalone Android binaries

2026-09-07 18:35:31 -07:00

feature_appconnectors_disabled.go

all: remove AUTHORS file and references to it

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feature_appconnectors_enabled.go

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2026-01-23 15:49:45 -08:00

feature_aws_disabled.go

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feature_aws_enabled.go

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feature_bakedroots_disabled.go

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feature_bakedroots_enabled.go

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feature_bird_disabled.go

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feature_bird_enabled.go

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feature_c2n_disabled.go

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feature_c2n_enabled.go

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2026-01-23 15:49:45 -08:00

feature_cachenetmap_disabled.go

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feature_cachenetmap_enabled.go

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2026-01-23 15:49:45 -08:00

feature_captiveportal_disabled.go

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feature_captiveportal_enabled.go

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feature_capture_disabled.go

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feature_capture_enabled.go

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feature_cliconndiag_disabled.go

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feature_cliconndiag_enabled.go

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2026-01-23 15:49:45 -08:00

feature_clientmetrics_disabled.go

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feature_clientmetrics_enabled.go

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feature_clientupdate_disabled.go

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feature_clientupdate_enabled.go

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feature_cloud_disabled.go

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feature_cloud_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_colorable_disabled.go

cmd/tailscale,feature/featuretags: make webbrowser and colorable deps omittable

2026-02-08 10:04:04 -08:00

feature_colorable_enabled.go

cmd/tailscale,feature/featuretags: make webbrowser and colorable deps omittable

2026-02-08 10:04:04 -08:00

feature_completion_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_completion_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_completion_scripts_disabled.go

feature/featuretags: add test that all ts_omit_foo tags are declared

2026-02-04 13:15:41 -08:00

feature_completion_scripts_enabled.go

feature/featuretags: add test that all ts_omit_foo tags are declared

2026-02-04 13:15:41 -08:00

feature_conn25_disabled.go

cmd/tailscaled,feature/conn25,feature/featuretags: add conn25 to featuretags

2026-02-04 12:52:08 -08:00

feature_conn25_enabled.go

cmd/tailscaled,feature/conn25,feature/featuretags: add conn25 to featuretags

2026-02-04 12:52:08 -08:00

feature_connreject_disabled.go

net/{connreject,tstun},feature/connreject,wgengine,client/local: add connection-rejection diagnostics

2026-09-08 16:22:43 -07:00

feature_connreject_enabled.go

net/{connreject,tstun},feature/connreject,wgengine,client/local: add connection-rejection diagnostics

2026-09-08 16:22:43 -07:00

feature_dbus_disabled.go

all: remove AUTHORS file and references to it

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feature_dbus_enabled.go

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feature_debug_disabled.go

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feature_debug_enabled.go

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feature_debugeventbus_disabled.go

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feature_debugeventbus_enabled.go

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feature_debugportmapper_disabled.go

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feature_debugportmapper_enabled.go

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feature_desktop_sessions_disabled.go

all: remove AUTHORS file and references to it

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feature_desktop_sessions_enabled.go

all: remove AUTHORS file and references to it

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feature_dns_disabled.go

all: remove AUTHORS file and references to it

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feature_dns_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_dnsresolvecache_disabled.go

net/dnscache, feature/dnsresolvecache: persist DNS resolutions to disk

2026-09-08 16:11:02 -07:00

feature_dnsresolvecache_enabled.go

net/dnscache, feature/dnsresolvecache: persist DNS resolutions to disk

2026-09-08 16:11:02 -07:00

feature_doctor_disabled.go

all: remove AUTHORS file and references to it

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feature_doctor_enabled.go

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feature_drive_disabled.go

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feature_drive_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_favorites_disabled.go

client,feature/favorites: add locally-pinned favorites (#20563)

2026-08-19 09:52:56 -04:00

feature_favorites_enabled.go

client,feature/favorites: add locally-pinned favorites (#20563)

2026-08-19 09:52:56 -04:00

feature_flashappliance_disabled.go

cmd/tailscale: add 'configure pve-appliance' to make Proxmox VM of appliance

2026-07-07 13:12:13 -07:00

feature_flashappliance_enabled.go

cmd/tailscale: add 'configure pve-appliance' to make Proxmox VM of appliance

2026-07-07 13:12:13 -07:00

feature_gro_disabled.go

all: remove AUTHORS file and references to it

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feature_gro_enabled.go

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feature_health_disabled.go

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feature_health_enabled.go

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feature_hujsonconf_disabled.go

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feature_hujsonconf_enabled.go

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feature_identityfederation_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_identityfederation_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_ipnbus_disabled.go

ipn/localapi, cli, clientmetric: add ipnbus feature tag; fix omit.go stub

2026-04-07 10:22:37 -07:00

feature_ipnbus_enabled.go

ipn/localapi, cli, clientmetric: add ipnbus feature tag; fix omit.go stub

2026-04-07 10:22:37 -07:00

feature_iptables_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_iptables_enabled.go

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feature_kube_disabled.go

all: remove AUTHORS file and references to it

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feature_kube_enabled.go

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feature_linkspeed_disabled.go

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2026-01-23 15:49:45 -08:00

feature_linkspeed_enabled.go

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2026-01-23 15:49:45 -08:00

feature_linuxdnsfight_disabled.go

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feature_linuxdnsfight_enabled.go

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feature_listenrawdisco_disabled.go

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feature_listenrawdisco_enabled.go

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feature_logtail_disabled.go

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feature_logtail_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_nattraversal_disabled.go

wgengine/magicsock, net/netcheck, feature/featuretags: add udptransport and nattraversal features

2026-09-29 06:09:17 -07:00

feature_nattraversal_enabled.go

wgengine/magicsock, net/netcheck, feature/featuretags: add udptransport and nattraversal features

2026-09-29 06:09:17 -07:00

feature_netlog_disabled.go

all: remove AUTHORS file and references to it

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feature_netlog_enabled.go

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feature_netstack_disabled.go

all: remove AUTHORS file and references to it

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feature_netstack_enabled.go

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2026-01-23 15:49:45 -08:00

feature_networkmanager_disabled.go

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feature_networkmanager_enabled.go

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2026-01-23 15:49:45 -08:00

feature_oauthkey_disabled.go

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2026-01-23 15:49:45 -08:00

feature_oauthkey_enabled.go

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feature_osrouter_disabled.go

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feature_osrouter_enabled.go

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feature_outboundproxy_disabled.go

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feature_outboundproxy_enabled.go

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feature_peerapiclient_disabled.go

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feature_peerapiclient_enabled.go

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feature_peerapiserver_disabled.go

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2026-01-23 15:49:45 -08:00

feature_peerapiserver_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_portlist_disabled.go

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2026-01-23 15:49:45 -08:00

feature_portlist_enabled.go

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2026-01-23 15:49:45 -08:00

feature_portmapper_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_portmapper_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_posture_disabled.go

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2026-01-23 15:49:45 -08:00

feature_posture_enabled.go

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2026-01-23 15:49:45 -08:00

feature_qrcodes_disabled.go

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2026-01-23 15:49:45 -08:00

feature_qrcodes_enabled.go

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feature_relayserver_disabled.go

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2026-01-23 15:49:45 -08:00

feature_relayserver_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_remoteconfig_disabled.go

cmd/tailscale, ipn, feature/remoteconfig: add remote-config support

2026-07-07 12:10:34 -07:00

feature_remoteconfig_enabled.go

cmd/tailscale, ipn, feature/remoteconfig: add remote-config support

2026-07-07 12:10:34 -07:00

feature_resolved_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_resolved_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_routecheck_disabled.go

feature/routecheck: add ts_omit_routecheck feature flag (#19638)

2026-05-15 15:50:50 -07:00

feature_routecheck_enabled.go

feature/routecheck: add ts_omit_routecheck feature flag (#19638)

2026-05-15 15:50:50 -07:00

feature_runtimemetrics_disabled.go

control/controlknobs,feature/*,ipn/ipnlocal,tailcfg: add runtimemetrics

2026-05-26 16:02:01 -07:00

feature_runtimemetrics_enabled.go

control/controlknobs,feature/*,ipn/ipnlocal,tailcfg: add runtimemetrics

2026-05-26 16:02:01 -07:00

feature_sdnotify_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_sdnotify_enabled.go

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2026-01-23 15:49:45 -08:00

feature_serve_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_serve_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_serviceclientprefs_disabled.go

feature,client: add serviceclientprefs for desktop client service launch (#20501)

2026-07-22 20:36:05 -07:00

feature_serviceclientprefs_enabled.go

feature,client: add serviceclientprefs for desktop client service launch (#20501)

2026-07-22 20:36:05 -07:00

feature_ssh_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_ssh_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_synology_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_synology_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_syslog_disabled.go

feature/syslog, cmd/tailscaled, logpolicy: add optional --syslog flag

2026-07-17 13:55:23 -07:00

feature_syslog_enabled.go

feature/syslog, cmd/tailscaled, logpolicy: add optional --syslog flag

2026-07-17 13:55:23 -07:00

feature_syspolicy_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_syspolicy_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_systray_disabled.go

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2026-01-23 15:49:45 -08:00

feature_systray_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_taildrop_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_taildrop_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_tailnetlock_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_tailnetlock_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_tap_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_tap_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_tpm_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_tpm_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_tundevstats_disabled.go

feature/*,net/tstun: add tundev_txq_drops clientmetric on Linux

2026-03-24 09:44:58 -07:00

feature_tundevstats_enabled.go

feature/*,net/tstun: add tundev_txq_drops clientmetric on Linux

2026-03-24 09:44:58 -07:00

feature_udptransport_disabled.go

wgengine/magicsock, net/netcheck, feature/featuretags: add udptransport and nattraversal features

2026-09-29 06:09:17 -07:00

feature_udptransport_enabled.go

wgengine/magicsock, net/netcheck, feature/featuretags: add udptransport and nattraversal features

2026-09-29 06:09:17 -07:00

feature_unixsocketidentity_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_unixsocketidentity_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_useexitnode_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_useexitnode_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_useproxy_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_useproxy_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_usermetrics_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_usermetrics_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_useroutes_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_useroutes_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_wakeonlan_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_wakeonlan_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_webbrowser_disabled.go

cmd/tailscale,feature/featuretags: make webbrowser and colorable deps omittable

2026-02-08 10:04:04 -08:00

feature_webbrowser_enabled.go

cmd/tailscale,feature/featuretags: make webbrowser and colorable deps omittable

2026-02-08 10:04:04 -08:00

feature_webclient_disabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

feature_webclient_enabled.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00

gen.go

all: remove AUTHORS file and references to it

2026-01-23 15:49:45 -08:00