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tomhjp/comparable-struct-as-key
knyar/nofilch
irbekrm/egresshafw
main
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adrian/vip
flakes
mpminardi/ssh-environment-variable-forwarding
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bradfitz/alaska
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kradalby/usermetrics-wgengine
maisem/idp
knyar/usermetrics-wgengine
raggi/eperm-health
angott/doh-keepalives-tweak
fran/natc-consensus-prototype
kradalby/conn-stats-packagecount
bradfitz/dup_add
bradfitz/derp_flow_track
dependabot/npm_and_yarn/client/web/rollup-4.22.4
kradalby/userfacing-metrics-moar
kari/hostinfopkg
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maisem/tsnet-forward
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release-branch/1.74
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bradfitz/bumptoolchain
angott/tvos-23087
raggi/trimpathtest
nickkhyl/http2-for-win-safesocket
nickkhyl/login-notifications
irbekrm/egresshapm
dependabot/npm_and_yarn/cmd/tsconnect/micromatch-4.0.8
irbekrm/egressha
nickkhyl/authurl-notify-backport
jwhited/test-local-forwarder
release-branch/1.72
jonathan/missing_resolvers
knyar/userfacing-metrics
andrew/disco-af-packet-refactor
jwhited/gvisor-revert-gro
irbekrm/proxycidrs
22332-macos-sequoia-hostname
knyar/metrictype
dependabot/go_modules/github.com/docker/docker-26.1.5incompatible
bradfitz/vnet2
jwhited/derp-https-tcp-connect
raggi/callmebaby
awly/cli-json-docs
raggi/linux6644
irbekrm/reload_config
maisem/flake-3
nickkhyl/syspolicy-new
jonathan/vznet
irbekrm/dnat
raggi/dnsfallback
irbekrm/websocket
andrew/captive-use-atomic
marwan/offunc
jwhited/gVisor-gso-gro
release-branch/1.70
tomhjp/e2e-tests
irbekrm/kubetestsetup
irbekrm/eks
dsnet/syncs-lock
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andrew/dns-more-logging
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adrian/fix-vet-failures
angott/dns-warnables
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bradfitz/resume
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dependabot/npm_and_yarn/cmd/tsconnect/braces-3.0.3
irbekrm/fixsubnets
irbekrm/dnstest
irbekrm/fix
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percy/issue8593
percy/issue8593-prep
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release-branch/1.66
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andrew/debug-integration-tests
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ox/11854-3-sftp
percy/cherry-pick-2648d475d751b47755958f47a366e300b6b6de0a
ox/corp-19592
ox/11954-3
ox/11854
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andrew/dns-wrap-errors
release-branch/1.64
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bradfitz/login_retry
patrickod/installer-yml-fixup
release-branch/1.64.0
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enable-exit-node-dst-logs
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revert-11590-catzkorn/penguin
enable-exit-node-dst-logs-2
licenses/corp
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licenses/android
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flyingsquirrel_bak
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bm/tsoidc
irbekrm/le
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raggi/document-deprecated-approach
dsnet/statestore
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richard/15372
raggi/icmplistener
awly/linux-sudoers-local-admin-poc
release-branch/1.52
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bradfitz/ipx_set_contains
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richard/15037-2
bradfitz/linuxfw_nil_table
richard/15037
bradfitz/tbug
bradfitz/derp_mesh
will/sonia/web-tailscaled
tyler/serve-status
maisem/ni
maisem/hi
rhea/apple-test
dgentry-nix-flake
dgentry-coverage
c761d10
bradfitz/gocross_wantver
awly/ipnlocal-watchnotifications-clientversion
bradfitz/integration_more_tun
bradfitz/recursive_controlknob
dgentry-authkey
dependabot/npm_and_yarn/cmd/tsconnect/postcss-8.4.31
bm/4via6
bradfitz/sessionactivetimeout
release-branch/1.50
rhea/taildrop-resume
andrew/peercap-ipv6-aaaa
irbekrm/k8sipnftheuristics
irbekrm/kubeipnft
irbekrm/k8sipnft
dgentry-istoreos
knyar/posturemac
irbekrm/egress
raggi/restore-extra-records-dns
aaron/win_process_mitigations
danderson/lru-rollback
clairew/mdm-interface
angott/userdefaults-reader
andrew/bump-esbuild
andrew/netns-more-logging
release-branch/1.48
irbekrm/k8s-autopilot
dsnet/viewer-jsonv2
marwan/altmem_stash
irbekrm/k8s-nftables
marwan/postmem
maisem/fix-deadlock
bradfitz/matrix
irbekrm/egress-dns
bradfitz/wait_unpause
bradfitz/calc_state
irbekrm/svc_conditions
soniaappasamy/fix-test-flake
marwan/servedev
soniaappasamy/fix-web-client-lock
raggi/netfilter-runtime
raggi/netfilter-add-modes
marwan/scmem
bradfitz/ignore_ula
clairew/tstime-net
clairew/tstime-wgengine
bradfitz/tkasig_type
shayne/k8s-serve
bradfitz/gui_netmap
macsys-update
catzkorn/netcheckuout
andrew/doctor-conntrack
tsweb/client-ui
valscale/ptb
raggi/gotoolchain
irbekrm/improve_logout
maisem/doc
rhea/egress
noncombatant/large-int-string
release-branch/1.46
andrew/captive-portal-package
s/pmtud
andrew/derp-bound-latency
andrew/health-state
bradfitz/gokrazy_dns
clairew/use-tstime-etc
bradfitz/negdep
raggi/stunc
raggi/gvisor-hostarch-deptest
crawshaw/art-table
irbekrm/fix_logout_loop
clairew/refactor-new-timer
clairew/test-wrapper-write-file
s/tsnetd
bradfitz/countrycode
crawshaw/stunchild
tom/disco
raggi/v6masq
release-branch/1.42
raggi/heartbeat-timebomb
raggi/derp-probe-stun-loss
raggi/tsdebugger
tom/derp
andrew/ipn-debug-1.42.0
marwan/portlistrefactor
marwan/noconstructor
angott/allow-thunderbolt-bridge
marwan/polleropts
marwan/noconstructor2
andrew/slicesx-deduplicate
unraid-web
release-branch/1.40
kristoffer/enable-mips-pkgs
s/eq
raggi/atomiccloseonce
raggi/bump-goreleaserv2
marwan/tmp
catzkorn/addrsend
raggi/gofuzz
shayne/funnel_cmd
release-branch/1.38
dgentry/atomicfile
andrew/derp-region-location
tom/tka6
maisem/k8s-cache
azure
andrew/fastjson
crawshaw/lnclose
crawshaw/tsnet1
crawshaw/httpconnect
Xe/tsnet-funnel
dgentry/sniproxy-dns
andrew/util-dnsconfig
andrew/cloudenv-location
release-branch/1.36
aaron/migrate_windows
crawshaw/pidlisten
andrew/router-drop-ula
will/vizerr
danderson/mkversion
crawshaw/activesum
andrew/doctor-scutil
danderson/version-private3
bradfitz/sassy
bradfitz/win_unattended_warning
andrew/hostinfo-HavePortMap
skriptble/ssh-recording-persist
crawshaw/ondemanddomains
danderson/helm
andrew/peer-status-KeyExpiry
bradfitz/noise_debug_more
release-branch/1.34
cloner
danderson/backport
clairew/tsnet_get_own_ip
bradfitz/tidy
raggi/tsweb-compression
bradfitz/fix_ipn_cloner
danderson/bootstrap
will/enforce-hostname
mihaip/delete-all-profiles
release-branch/1.32
shayne/serve_empty_text_handler
bradfitz/hostinfo_ingress_bit
mihaip/logout-async-start
net-audit-log/1.32
bradfitz/set_prefs_locked
mihaip/fas
bradfitz/port_intercept
andrew/net-tsaddr-mapviaaddr
danderson/tsburrito
andrew/tstest-goroutine-ignore
andrew/monitor-link-change
danderson/k8s
andrew/debug-subnet-router
andrew/metrics-distribution
crawshaw/accumulatorcfg
bradfitz/keyboard-interactive
bradfitz/tailpipe
vm
raggi/accept-routes-filter
nyghtowl/tailnet-name2
dsnet/tunstats-v2
buildjet
buildjet-vs-github
andrew/netns-macos-route
walterp-api
andrew/linux-router-v4-disabled
bradfitz/distro_ubuntu
tom/iptables
release-branch/1.30
tom/tka2
andrew/dnscache-debugging-1.22.2
andrew/controlclient-dial
raggi/experiment-queues
bradfitz/u32
ip6tables
catzkorn/derp-benchmark
jwhited/wireguard-go-vectorized-bind
catzkorn/otel-init
bradfitz/appendf
mihaip/js-cli
dsnet/tsweb-499s
bradfitz/deephash_early_exit
crawshaw/xdp
dsnet/logtail-zstd-single-segment
Xe/gitops-pusher-three-version-problem
Xe/gitops-pusher-acl-test-error-output
Xe/gitops-pusher-ffcli
bradfitz/ssh_auth_none_demo
release-branch/1.28
catzkorn/otel-derp
bradfitz/shared_split_dns
nyghtowl/fix-resolved
release-branch/1.26
bradfitz/explicit_empty_test_3808
crawshaw/preservenetinfo
miriah-3808-reset-operator
dsnet/tsnet-logging
mihaip/wasm-taildrop
crawshaw/stunname
bradfitz/wasm_play
bradfitz/dot
bradfitz/tcp_flows
release-branch/1.24
raggi/netstack_fwd_close
bradfitz/netstack_fwd_close
merge-tag
cross-android
bradfitz/kmod
bradfitz/ssh_banner
bradfitz/ping
tom/integration
bradfitz/ssh_policy_earlier
bradfitz/derpy_cast
bradfitz/cli_admin
release-branch/1.22
aaron/go-ole-ref
bradfitz/key_rotation_prep
josh/tswebflags
release-branch/1.20
crawshaw/envtype
danderson/tsweb-server
bradfitz/autocert_force
bradfitz/use_netstack_upstream
Xe/winui-bugreport-without-tailscaled
bradfitz/hostinfo_basically_equal
release-branch/1.18
aaron/loglog
aaron/dnsapc
bradfitz/demo_client_hijack
bradfitz/windns
bradfitz/exit_node_forward_dns
bradfitz/1.18.1
Xe/tailtlsproxy
bradfitz/allsrc
josh/peermap
danderson/ebpf
bradfitz/1_16_stress_netmap
danderson/nodekey-move
danderson/nodekey-delete-old
danderson/nodekey-cleanup
danderson/magicsock-discokey
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danderson/magicsock-node-key
crawshaw/updatefallback
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bradfitz/1.14
bradfitz/updates
josh/immutable-views
bradfitz/portmap_gh_actions
danderson/kernel-tailscale
bradfitz/win_default_route
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jknodt/logging
simenghe/add-tsmpping-call
josh/opt-getstatus
Aadi/speedtest-tailscaled
dsnet/admin-cli
bradfitz/portmap_test
jknodt/portmap_test
upnpdebug
jknodt/upnp_reuse
crawshaw/peerdoh
josh/debug-flake
simenghe/pingresult-work
jknodt/derp_flow
tps/tailscaled
jknodt/vms_ref
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josh/fast-time
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josh/io_uring
josh/deflake-pipe-again
Xe/testcontrol-v6
jknodt/io-uring
simenghe/admin-ping-test
jknodt/periodic_probe
simenghe/isoping
Xe/private-logcatcher-in-process
simenghe/tcpnodeping
bradfitz/deephash_methods
crawshaw/deephash
josh/de-select-tstun-wrapper
Xe/debug-nixos-build
simenghe/isoping-experiment
crawshaw/dnswslhackery
jknodt/userderp
jknodt/bw_rep2
crawshaw/wslresolvconf
jknodt/upnp
crawshaw/magicdnsalways
simenghe/flakeresolve
rec_in_use_after_5_sec
bradfitz/acme
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simenghe/add-httphandlers-ping
simenghe/add-ping-route-testcontrol-mux
simeng-pingtest
Xe/test-install-script-libvirtd
apenwarr/check184
crawshaw/newbackendserver
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onebinary
Xe/synology-does-actually-work-with-subnet-routes-til
bradfitz/netstack_port_map
bradfitz/demo_pinger
apenwarr/fixes
apenwarr/relogin
josh/NewIPPort
josh/IPWithPort
bradfitz/integration_tests
josh/opt-dp-wip
bradfitz/ping_notes
bradfitz/dropped_by_filter_logspam
bradfitz/netstack_drop_silent
bradfitz/log_rate_test
bradfitz/issue_1840_rebased_tree
bradfitz/issue_1849_rebased_tree
crawshaw/syno
apenwarr/statefix
apenwarr/statetest
josh/wip/endpoint-serialize
apenwarr/ioslogin
rosszurowski/cli-fix-typo
bradfitz/cli_pretty
bradfitz/win_delete_retry
bradfitz/sleep
naman/netstack-request-logging
naman/ephem-expand-range
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bradfitz/ip_of
crawshaw/localapi404
crawshaw/movefiles
crawshaw/socket
crawshaw/cgi
naman/netstack-subnet-routing
josh/wip/create-endpoint-no-public-key
Xe/log-target-registry-key
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bradfitz/ipv6_link_local_strip
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Xe/disallow-local-ip-for-exit-node
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Xe/reset-logid-on-logout-login
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peske/ifacewatcher
Xe/hello-vr
crawshaw/filchsync
Xe/derphttp-panic-fix
peske/elnotfound
Xe/rel-144-fix-ipv6-broken-in-tests
bradfitz/darwin_creds
josh/longblock
josh/udp-alloc-less
josh/simplify-filch
josh/remove-ipcgetfilter
Xe/envvar-name-TS
Xe/TS-envvar-name
Xe/do-windows-logserver-better
Xe/log-target-flag
crawshaw/ipuint
bradfitz/hello
bradfitz/linux_v6_off
bradfitz/call_me_maybe_eps
bradfitz/api_docs
alexbrainman/use_wg_dns_code
naman/netstack-use-tailscale-ip
josh/debug-TestLikelyHomeRouterIPSyscallExec
noerror-not-notimp
bradfitz/umaskless_permissions
naman/netstack-bump-version
bradfitz/lite_endpoint_update
c22wen/api-docs
bradfitz/grafana_auth_proxy
crawshaw/dnsguid
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josh/no-goroutine-per-udp-read-2
crawshaw/tailcfg
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bradfitz/ipn_empty
bradfitz/win_firewall_async
bradfitz/machine_key
apenwarr/faketun
crawshaw/cloner
crawshaw/jsonhandler
c22wen/route-addr
c22wen/magicsock.go
bradfitz/gvisor_netstack
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tailscale/wgengine/magicsock
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Brad Fitzpatrick 16a9cfe2f4 wgengine: configure wireguard peers lazily, as needed 
wireguard-go uses 3 goroutines per peer (with reasonably large stacks
& buffers).

Rather than tell wireguard-go about all our peers, only tell it about
peers we're actively communicating with. That means we need hooks into
magicsock's packet receiving path and tstun's packet sending path to
lazily create a wireguard peer on demand from the network map.

This frees up lots of memory for iOS (where we have almost nothing
left for larger domains with many users).

We should ideally do this in wireguard-go itself one day, but that'd
be a pretty big change.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 		4 years ago
..
magicsock.go wgengine: configure wireguard peers lazily, as needed 4 years ago
magicsock_test.go wgengine: configure wireguard peers lazily, as needed 4 years ago