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alexc/bump-setec
jwhited/so-reuseport
bradfitz/mutex_debug
main
davidb/k8s-tailnet-crd
hwh33/add-unix-sockets-to-serve
davidb/k8s-multi-tailnet
tomhjp/bun
tomhjp/test-with-cigocached-down
cmol/resolveconf_trample_trample_back
alexc/tailscale-lock-status-json
tomhjp/cigocacher-windows
dependabot/go_modules/gokrazy/natlabapp/builddir/github.com/gokrazy/gokrazy/cmd/dhcp/golang.org/x/net-0.38.0
raggi/disco-key-tsmp2
bradfitz/lazy_wg_pushdown2
release-branch/1.92
raggi/envknobs-gso-gro
aaron/oss_17111
jonathan/netmon-changedelta
tomhjp/win-go-brrr
fran/conn25-peer-api
release-branch/1.90
tomhjp/tsnet-auth-loop
jwhited/relay-set-flags-config
bradfitz/disco_change_remove_sync
alexc/better-localbackend-logging
bradfitz/cgnat_disable_v4
chaosinthecrd/k8s-operator-ha-ingress-readiness
dependabot/go_modules/gokrazy/tsapp/builddir/github.com/gokrazy/breakglass/golang.org/x/crypto-0.45.0
tomhjp/cigocacher-with-ci
raggi/disco-key-tsmp
bradfitz/nm_cache_disk
dsnet/netlog-tailcfg
zofrex/fix-peerapi-double-up
patrickod/swtpm-integration-test
bradfitz/nm_cache
bradfitz/getstatus
icio/netmap-diff-check
bradfitz/eventbus_too_slow
jonathan/netns_probe
andrew/syncs-tsync
gesa/ssh-client-session-monitoring
raggi/latencyqueue
raggi/disco-key-rotate-graceful
jaxxstorm/static_endpoints
dsnet/migrate-omitzero
dsnet/jsonimports-ci
naman/tls-terminated-tcp-services
gesa/device-ui-bug
fserb/no-ell
mikeodr/add-nixos-modules
alexc/no-ell-in-tailchonk
alexc/tka-dont-fetch-unneeded-bootstrap
dependabot/github_actions/github/codeql-action-4.31.0
containerboot-exit-code
nickkhyl/healthnotify-on-release
bradfitz/cherry-pick-iptables
cmol/add_upnp_release_timeout
zofrex/auto-login-comments
k8s-ingress-redirect
ipn-redirect
release-branch/1.90.0
bradfitz/test
alexc/share-tka-tests
ptruby/initial-tailscale-ui-components-integration
releaase
release-branch/1.88
davidb/containerboot-disconnect-control
andrew/pr-17281-test
nickkhyl/lb-statemachine2
tomhjp/k8s-egress-to-svcs
tomhjp/default-state-encryption
sfllaw/tailscale-ping-for-client-side-reachability
zofrex/set-url-wg-status-race-2
cmol/portupdate_eventbus_direct
bradfitz/evsub
tomhjp/k8s-e2e-with-devcontrol
tomhjp/k8s-e2e
zofrex/fix-test-wg-engine-status-race
bradfitz/magicsock_relayserver
alexc/mark-break-watcher-conn-recv-flaky
jonathan/derp-health-spam
ipv6-nameserver
knyar/sshcap
bradfitz/rm_usermetrics_66KB
percy/issue16983
dsnet/logtail-iopipe
bradfitz/cli_ts2021_hang_test
jamesbrad/controlhttp-race-dial
bradfitz/foo
alexc/clean-up-deprecated-aliases
knyar/serve-grants-headers
alexc/more-testing-for-tailscale-up
dependabot/github_actions/actions/create-github-app-token-2.1.4
alexc/offline-integration-test
bradfitz/ios_ish
alexc/add-named-options-to-send
patrickod/hardware-attestation-key
tomhjp/poc-peer-relay-proxygroup
bradfitz/lite-on-restart
knyar/netmapdiff2
dependabot/github_actions/actions/setup-go-6.0.0
alex-command
jwhited/relay-manager-logs
percy/oss14025-2
percy/oss14025
jonathan/darwin-netmon-thrashing
alexc/remove-magic-dns-suffix
nickkhyl/locksmith
dependabot/github_actions/actions/checkout-5.0.0
tomhjp/test
release-branch/1.86
cmol/decouple_magicsock_ipnlocal
dependabot/go_modules/github.com/go-viper/mapstructure/v2-2.4.0
dependabot/go_modules/github.com/docker/docker-28.0.0incompatible
icio/shrink-singleflight
aaron/gocross
mzb/corp-30906/direct-dnstype
jwhited/lazy-endpoint-control-knobs
jwhited/disable-peer-relay-if-cryptorouting-disabled
dylan/debug-peer-relay-sessions
kradalby/chaos-oss
sfllaw/traffic-steering/suggest-exit-node-steering
sam/tailscale-up-with-jwt
push-tyyxlsmpmlvz
k8s_priority_class
k8s-idp
rajsinghtech/tsidp-kubestore
dns-proxygroup
tomhjp/handle-multiple-messages-per-ws-frame
tomhjp/debug
tomhjp/disable-http2
sfllaw/traffic-steering/debug-set-location
tomhjp/k8s-proxy-auth-mode-reload
jwhited/peer-relay-pathological-intervals
jwhited/relay-manager-alloc-req-no-keepalives
fran/nat-conn-follower-only-flag
dsnet/jsonv1in2
mpminardi/policy-debugging
jwhited/verify-peer-periodically
tomhjp/k8s-proxy-svc
tomhjp/authkey-reissue
jwhited/peer-verify-every-packet-batch
dsnet/update-jsonv2
kevin/packet_to_vipService_by_ip_instead_of_host
release-branch/1.84
chaosinthecrd/k8s-operator-proxygroup-event-filter
jwhited/testing-mod-capver-checks
annotations
bradfitz/tinyderpclient
awly/tpm-seal-timing
awly/tpm-command-caps
nickkhyl/authreconfig-defer-unlock
dylan/derp-hosting-provider
nocross
kari/nilbus
patrickod/bump-circl
percy/drive-verbose
tomhjp/magicsock-endpoints
chaosinthecrd/k8s-operator-tailscale-service-ports
tomhjp/k8s-proxy-3
kevin/add_services_flag_to_tailscale_serve_and_enrich_output
exclude_int
irbekrm/pretendpoints
revert-15839-zofrex/refactor-control-health
kari/taildropsaf2
jwhited/relay-handshake
irbekrm/ingress_services
knyar/tnlocktest
nickkhyl/authreconfig-once
mjf/no-ws-on-ios
kevin/test_for_applyCheckoutAddr
knyar/lp
jwhited/ep-relay-capable
tomhjp/k8s-proxy-2
proxyclass/sa
dependabot/github_actions/golangci/golangci-lint-action-8.0.0
nickkhyl/context-with-lock
nickkhyl/ctxlock-generics
bradfitz/nodectx_ctx
nickkhyl/appendmatchingpeers
mikeodr/derp-mesh-separate-port-26312
nickkhyl/nodecontext-lifecycle
patrickod/webui-sec-fetch-site
patrickod/safeweb-sec-fetch-site
chaosinthecrd/k8s-operator-network-proxy-ha-mode
kari/saftaildrop
dependabot/go_modules/gokrazy/tsapp/builddir/github.com/gokrazy/breakglass/golang.org/x/crypto-0.35.0
push-ykxypyzonmux
chaosinthecrd/configure-proxyclass-via-annotation
irbekrm/doc_tags
nickkhyl/fix-dialplan-resets
irbekrm/log_invalid_order
nickkhyl/viewer-improvements
release-branch/1.82
zofrex/poc-health-v2
dependabot/go_modules/gokrazy/tsapp/builddir/github.com/gokrazy/gokrazy/cmd/dhcp/golang.org/x/net-0.38.0
knyar/morebuntu
knyar/dnstest
jwhited/relay-peerapi
jasonodonnell/add-twice-set-test
mpminardi/temp
jonathan/dns_loopback
kari/taildropsaf
bradfitz/mcp
rajsinghtech/k8s-operator/enphemeral
rajsinghtech/cmd/k8s-operator/enphemeral-proxy
raggi/iptables-kernel-bug-message
tomhjp/ingress-preshutdown
percy/issue14393
chart/k8s-operator
bradfitz/plan9
bradfitz/notify_delta
irbekrm/cert_share_kubestore
kevin/add_services_to_status_subcommand_for_serve
percy/corp27066-vizerror-wrapf
irbekrm/certsharev2
tomhjp/mock-acme-server
andrew/current-time
raggi/natc-6
mpminardi/test-cache-experiments
push-wmvmtoxuoumt
push-otwrlsqunmon
brianp/controlclient-timings
release-branch/1.80
raggi/stun-reply-source
jaxxstorm/ssm_kms
patrickod/backport-csrf-fix
fran/franwip3
patrickod/reverse-web-handler-order-csrf
scottjab/add-sparsefile-punching
icio/views-jsonv2
icio/opt-nojsonv2
raggi/stunc2
irbekrm/cert_share
zofrex/testwrapper-json-output
bradfitz/gocross_cgo_packages_test
fran/franwip2
awly/go_124
icio/testwrapper2
icio/go1.24-testwrapper
andrew/wgengine-filter-split
irbekrm/pc_pretendpoints
percy/movelocalapi
zach/temporary-cert-testing
raggi/netmon-darwin-route-restart
operator_direct_connections
raggi/derp-204-cache-control
raggi/mkversion-pre
zofrex/x-poc-e2e-netmap-packetfilter-test
angott/26146-define
mpminardi/bump-go-patch
knyar/installmore
knyar/install
raggi/hello-temp
andrew/execqueue-metrics
bradfitz/controll
tomhjp/dns-01-test-env
nickkhyl/tailscaled-deferredinit
bradfitz/browser_ext
irbekrm/funnel_on
bradfitz/syspolicy_key
raggi/natc-upstream-keepalive
percy/derp-track-drop-distribution
mpminardi/deadlock-test
dependabot/go_modules/gokrazy/natlabapp.arm64/builddir/github.com/gokrazy/gokrazy/cmd/dhcp/golang.org/x/net-0.33.0
percy/derp-track-queue-depth
release-branch/1.78
bradfitz/lanscaping
andrew/topk-no-duplicates
irbekrm/lcdeprecated
awly/appconnector-debug-logs
irbekrm/vip_svcs_api
irbekrm/udp_fwd
kradalby/nix-dont-overlap-tool
irbekrm/egressc
jwhited/qd-slice
docker_state
will/status-tailnet
patrickod/bradtfitz-flow-rebased
percy/derpopt
tomhjp/consistent-state-test
walterp/docs-863-update-docker-run-command-on-docker-hub-page-for
mpminardi/derp-ideal-reconnect
irbekrm/tunmssg
percy/derp_sequence_diagram
mpminardi/derp-experiments
awly/hide-wranings-option
awly/tlsdial-mitm-warning
andrew/context-dedup-errors
irbekrm/containerboot_healthz
percy/issue24522-1-continuous-bandwidth
bradfitz/avoid_initial
raggi/derp-intern-key
percy/issue24522-2-region-restrict-yaml
andrew/dnscache-hard-code-localhost
irbekrm/debug
bradfitz/nodepublic_uniq
bradfitz/bench
fran/natc-raft
irbekrm/connector_multireplica
release-branch/1.76
lp
bradfitz/percy/unforked-ssh-try-gomod
percy/unforked-ssh-try
bradfitz/mesh_vpc
knyar/metricshelp
irbekrm/serve_log
andrew/keyfallback
naman/web-client-update-fixes
percy/derp-jwt
andrew/wgengine-router-debug
bradfitz/cmd_printmetric
adrian/stricter-labels
bradfitz/ssh_config_from_env
kradalby/usermetrics-wgengine-errors
dsnet/slices-collect
tomhjp/tailscaled-kube-conf
mpminardi/dsm-7-2-builds-fix
13765-taildrive-server-unexpectedly-starts-on-apple-tv
angott/23782
bradfitz/vizerrinternal2
bradfitz/vizinternal
fran/fix-appc-routes
irbekrm/egressconfig
13685-low-memory-mode-in-logtail-may-no-longer-be-needed
angott/doh-clients-sleep-mode
release-branch/1.74
tomhjp/comparable-struct-as-key
adrian/vip
andrew/noise-conn-test
bradfitz/quic_dns
knyar/usermetrics-wgengine
raggi/eperm-health
fran/natc-consensus-prototype
bradfitz/dup_add
bradfitz/derp_flow_track
kradalby/userfacing-metrics-moar
angott/dns-cli-stream
maisem/tsnet-forward
angott/captive-exit-node-disablement
bradfitz/bumptoolchain
angott/tvos-23087
nickkhyl/http2-for-win-safesocket
irbekrm/egresshapm
dependabot/npm_and_yarn/cmd/tsconnect/micromatch-4.0.8
irbekrm/egressha
nickkhyl/authurl-notify-backport
jwhited/test-local-forwarder
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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
raggi/linux6644
irbekrm/reload_config
maisem/flake-3
nickkhyl/syspolicy-new
irbekrm/dnat
raggi/dnsfallback
irbekrm/websocket
andrew/captive-use-atomic
marwan/offunc
jwhited/gVisor-gso-gro
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irbekrm/kubetestsetup
irbekrm/eks
dsnet/syncs-lock
raggi/derp-route-optimization
will-systray
bradfitz/json2
andrew/dns-more-logging
andrew/net-dns-systemd-no-stub
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fran/fix-appc-write-new-domain
adrian/fix-vet-failures
angott/dns-warnables
andrew/workgraph
agottardo-patch-1
bradfitz/resume
irbekrm/operator_linux_only
nickkhyl/posture-sn-override
kradalby/chaos
angott/ignore-some-warnings-startup
irbekrm/fixsubnets
irbekrm/dnstest
irbekrm/fix
irbekrm/accept_routes
percy/issue8593
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icio/public-key-short
clairew/handle-auto-exit-node-value
knyar/install2
will/tsnet-udp
raggi/web-zst-precompress
raggi/gocross-empty-goos-goarch
andrew/dns-fallback
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jwhited/android-packet-vectors
knyar/renew
bradfitz/debug_tstest
clairew/revert-storing-last-suggested
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fran/appc-ensmallen-gh-preset
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percy/cherry-pick-2648d475d751b47755958f47a366e300b6b6de0a
ox/corp-19592
ox/11954-3
ox/11854
kevin/Split_Remove_advertised_routes_from_pref
bradfitz/dataplane_logs_no_logs_no_support
nickkhyl/ipn-user-identity
irbekrm/extsvcnftableslb
andrew/dns-wrap-errors
release-branch/1.64
noncombatant/safeweb-cleanup
bradfitz/login_retry
release-branch/1.64.0
fran/appc-store-routes-by-source
andrew/controlclient-use-last-addr
enable-exit-node-dst-logs
clairew/peer-node-capability-documentation
revert-11590-catzkorn/penguin
enable-exit-node-dst-logs-2
licenses/corp
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licenses/cli
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clairew/log-dst-exit-node
fran/appc-domain-delte-prototype
irbekrm/maybe_fix_v6
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irbekrm/operatorversion
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will/webclient-mobile
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andrew/nixos-vm-tests
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irbekrm/external_services
irbekrm/os
irbekrm/pull_in_certs
irbekrm/kube_build_tags
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jwhited/derp-cmm-timestamp
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irbekrm/le
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raggi/document-deprecated-approach
dsnet/statestore
awly/version-override
bradfitz/silentdisco_knob
richard/15372
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soniaappasamy/web-auth-restructure
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richard/15037-2
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bradfitz/tbug
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will/sonia/web-tailscaled
tyler/serve-status
maisem/ni
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rhea/apple-test
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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
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irbekrm/k8s-autopilot
dsnet/viewer-jsonv2
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bradfitz/matrix
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irbekrm/svc_conditions
soniaappasamy/fix-test-flake
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raggi/netfilter-runtime
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marwan/scmem
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clairew/tstime-net
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shayne/k8s-serve
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macsys-update
catzkorn/netcheckuout
andrew/doctor-conntrack
tsweb/client-ui
valscale/ptb
raggi/gotoolchain
irbekrm/improve_logout
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rhea/egress
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andrew/captive-portal-package
s/pmtud
andrew/derp-bound-latency
andrew/health-state
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raggi/heartbeat-timebomb
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marwan/portlistrefactor
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angott/allow-thunderbolt-bridge
marwan/polleropts
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andrew/slicesx-deduplicate
unraid-web
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shayne/funnel_cmd
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azure
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crawshaw/lnclose
crawshaw/tsnet1
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Xe/tsnet-funnel
dgentry/sniproxy-dns
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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
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crawshaw/accumulatorcfg
bradfitz/keyboard-interactive
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vm
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nyghtowl/tailnet-name2
dsnet/tunstats-v2
buildjet
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andrew/linux-router-v4-disabled
bradfitz/distro_ubuntu
tom/iptables
release-branch/1.30
tom/tka2
andrew/dnscache-debugging-1.22.2
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Commit Graph

830 Commits (d6fd865d41905e6d55e66613c36186847b2469f6)

Author SHA1 Message Date
Mario Minardi e0886ad167
ipn/ipnlocal, tailcfg: add disable-web-client node attribute (#11418) 
Add a disable-web-client node attribute and add handling for disabling
the web client when this node attribute is set.

Updates https://github.com/tailscale/tailscale/issues/10261

Signed-off-by: Mario Minardi <mario@tailscale.com>
 2 years ago
Andrew Lytvynov decd9893e4
ipn/ipnlocal: validate domain of PopBrowserURL on default control URL (#11394) 
If the client uses the default Tailscale control URL, validate that all
PopBrowserURLs are under tailscale.com or *.tailscale.com. This reduces
the risk of a compromised control plane opening phishing pages for
example.

The client trusts control for many other things, but this is one easy
way to reduce that trust a bit.

Fixes #11393

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
Brad Fitzpatrick ad33e47270 ipn/{ipnlocal,localapi}: add debug verb to force spam IPN bus NetMap 
To force the problem in its worst case scenario before fixing it.

Updates tailscale/corp#17859

Change-Id: I2c8b8e5f15c7801e1ab093feeafac52ec175a763
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Percy Wegmann 6c160e6321 ipn,tailfs: tie TailFS share configuration to user profile 
Previously, the configuration of which folders to share persisted across
profile changes. Now, it is tied to the user's profile.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Percy Wegmann fd942b5384 ipn/ipnlocal: reduce allocations in TailFS share notifications 
This eliminates unnecessary map.Clone() calls and also eliminates
repetitive notifications about the same set of shares.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Percy Wegmann e324a5660f ipn: include full tailfs shares in ipn notifications 
This allows the Mac application to regain access to restricted
folders after restarts.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Brad Fitzpatrick b68a09cb34 ipn/ipnlocal: make active IPN sessions keyed by sessionID 
We used a HandleSet before when we didn't have a unique handle. But a
sessionID is a unique handle, so use that instead. Then that replaces
the other map we had.

And now we'll have a way to look up an IPN session by sessionID for
later.

Updates tailscale/corp#17859

Change-Id: I5f647f367563ec8783c643e49f93817b341d9064
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Percy Wegmann 2d5d6f5403 ipn,wgengine: only intercept TailFS traffic on quad 100 
This fixes a regression introduced with 993acf4 and released in
v1.60.0.

The regression caused us to intercept all userspace traffic to port
8080 which prevented users from exposing their own services to their
tailnet at port 8080.

Now, we only intercept traffic to port 8080 if it's bound for
100.100.100.100 or fd7a:115c:a1e0::53.

Fixes #11283

Signed-off-by: Percy Wegmann <percy@tailscale.com>
(cherry picked from commit 17cd0626f3)
 2 years ago
Anton Tolchanov 8cc5c51888 health: warn about reverse path filtering and exit nodes 
When reverse path filtering is in strict mode on Linux, using an exit
node blocks all network connectivity. This change adds a warning about
this to `tailscale status` and the logs.

Example in `tailscale status`:

```
- not connected to home DERP region 22
- The following issues on your machine will likely make usage of exit nodes impossible: [interface "eth0" has strict reverse-path filtering enabled], please set rp_filter=2 instead of rp_filter=1; see https://github.com/tailscale/tailscale/issues/3310
```

Example in the logs:
```
2024/02/21 21:17:07 health("overall"): error: multiple errors:
	not in map poll
	The following issues on your machine will likely make usage of exit nodes impossible: [interface "eth0" has strict reverse-path filtering enabled], please set rp_filter=2 instead of rp_filter=1; see https://github.com/tailscale/tailscale/issues/3310
```

Updates #3310

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
 2 years ago
Nick Khyl 7ef1fb113d cmd/tailscaled, ipn/ipnlocal, wgengine: shutdown tailscaled if wgdevice is closed 
Tailscaled becomes inoperative if the Tailscale Tunnel wintun adapter is abruptly removed.
wireguard-go closes the device in case of a read error, but tailscaled keeps running.
This adds detection of a closed WireGuard device, triggering a graceful shutdown of tailscaled.
It is then restarted by the tailscaled watchdog service process.

Fixes #11222

Signed-off-by: Nick Khyl <nickk@tailscale.com>
 2 years ago
Brad Fitzpatrick e1bd7488d0 all: remove LenIter, use Go 1.22 range-over-int instead 
Updates #11058
Updates golang/go#65685

Change-Id: Ibb216b346e511d486271ab3d84e4546c521e4e22
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Andrew Dunham 52f16b5d10 doctor/ethtool, ipn/ipnlocal: add ethtool bugreport check 
Updates #11137

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Idbe862d80e428adb044249c47d9096b87f29d5d8
 2 years ago
Percy Wegmann c42a4e407a tailfs: listen for local clients only on 100.100.100.100 
FileSystemForLocal was listening on the node's Tailscale address,
which potentially exposes the user's view of TailFS shares to other
Tailnet users. Remote nodes should connect to exported shares via
the peerapi.

This removes that code so that FileSystemForLocal is only avaialable
on 100.100.100.100:8080.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Maisem Ali 370ecb4654 tailcfg: remove UserProfile.Groups 
Removing as per go/group-all-the-things.

Updates tailscale/corp#17445

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Percy Wegmann 87154a2f88 tailfs: fix startup issues on windows 
Starts TailFS for Windows too, initializes shares on startup.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Percy Wegmann ddcffaef7a tailfs: disable TailFSForLocal via policy 
Adds support for node attribute tailfs:access. If this attribute is
not present, Tailscale will not accept connections to the local TailFS
server at 100.100.100.100:8080.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Percy Wegmann abab0d4197 tailfs: clean up naming and package structure 
- Restyles tailfs -> tailFS
- Defines interfaces for main TailFS types
- Moves implemenatation of TailFS into tailfsimpl package

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Percy Wegmann 993acf4475 tailfs: initial implementation 
Add a WebDAV-based folder sharing mechanism that is exposed to local clients at
100.100.100.100:8080 and to remote peers via a new peerapi endpoint at
/v0/tailfs.

Add the ability to manage folder sharing via the new 'share' CLI sub-command.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Andrea Gottardo 6c79f55d48
ipnlocal: force-regen new authURL when it is too old (#10971) 
Fixes tailscale/support-escalations#23.

authURLs returned by control expire after 1 hour from creation. Customer reported that the Tailscale client on macOS would sending users to a stale authentication page when clicking on the `Login...` menu item. This can happen when clicking on Login after leaving the device unattended for several days. The device key expires, leading to the creation of a new authURL, however the client doesn't keep track of when the authURL was created. Meaning that `login-interactive` would send the user to an authURL that had expired server-side a long time before.

This PR ensures that whenever `login-interactive` is called via LocalAPI, an authURL that is too old won't be used. We force control to give us a new authURL whenever it's been more than 30 minutes since the last authURL was sent down from control.



Apply suggestions from code review




Set interval to 6 days and 23 hours

Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
 2 years ago
Brad Fitzpatrick 2bd3c1474b util/cmpx: delete now that we're using Go 1.22 
Updates #11058

Change-Id: I09dea8e86f03ec148b715efca339eab8b1f0f644
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
James Tucker ba70cbb930 ipn/ipnlocal: fix app connector route advertisements on exit nodes 
If an app connector is also configured as an exit node, it should still
advertise discovered routes that are not covered by advertised routes,
excluding the exit node routes.

Updates tailscale/corp#16928

Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Percy Wegmann fad6bae764 ipnlocal: log failure to get ssh host keys 
When reporting ssh host keys to control, log a warning
if we're unable to get the SSH host keys.

Updates tailscale/escalations#21

Signed-off-by: Percy Wegmann <percy@tailscale.com>
 2 years ago
Jordan Whited 8b47322acc
wgengine/magicsock: implement probing of UDP path lifetime (#10844) 
This commit implements probing of UDP path lifetime on the tail end of
an active direct connection. Probing configuration has two parts -
Cliffs, which are various timeout cliffs of interest, and
CycleCanStartEvery, which limits how often a probing cycle can start,
per-endpoint. Initially a statically defined default configuration will
be used. The default configuration has cliffs of 10s, 30s, and 60s,
with a CycleCanStartEvery of 24h. Probing results are communicated via
clientmetric counters. Probing is off by default, and can be enabled
via control knob. Probing is purely informational and does not yet
drive any magicsock behaviors.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
 2 years ago
Charlotte Brandhorst-Satzkorn ce4553b988 appc,ipn/ipnlocal: optimize preference adjustments when routes update 
This change allows us to perform batch modification for new route
advertisements and route removals. Additionally, we now handle the case
where newly added routes are covered by existing ranges.

This change also introduces a new appctest package that contains some
shared functions used for testing.

Updates tailscale/corp#16833

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
 2 years ago
James Tucker 8250582fe6 ipn/ipnlocal: make app connector configuration concurrent 
If there are routes changes as a side effect of an app connector
configuration update, the connector configuration may want to reenter a
lock, so must be started asynchronously.

Updates tailscale/corp#16833
Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
James Tucker 24df1ef1ee appc,ipn/ipnlocal,types/appctype: implement control provided routes 
Control can now send down a set of routes along with the domains, and
the routes will be advertised, with any newly overlapped routes being
removed to reduce the size of the routing table.

Fixes tailscale/corp#16833
Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Will Norris 236531c5fc ipn/ipnserver: always allow Windows SYSTEM user to connect 
When establishing connections to the ipnserver, we validate that the
local user is allowed to connect.  If Tailscale is currently being
managed by a different user (primarily for multi-user Windows installs),
we don't allow the connection.

With the new device web UI, the inbound connection is coming from
tailscaled itself, which is often running as "NT AUTHORITY\SYSTEM".
In this case, we still want to allow the connection, even though it
doesn't match the user running the Tailscale GUI. The SYSTEM user has
full access to everything on the system anyway, so this doesn't escalate
privileges.

Eventually, we want the device web UI to run outside of the tailscaled
process, at which point this exception would probably not be needed.

Updates tailscale/corp#16393

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
Rhea Ghosh 4ce33c9758
taildrop: remove breaking abstraction layers for apple (#10728) 
Removes the avoidFinalRename logic and all associated code as it is no longer required by the Apple clients.
Enables resume logic to be usable for Apple clients.

Fixes tailscale/corp#14772

Signed-off-by: Rhea Ghosh <rhea@tailscale.com>
 2 years ago
James 'zofrex' Sanderson 10c595d962
ipn/ipnlocal: refresh node key without blocking if cap enabled (#10529) 
Updates tailscale/corp#16016

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
Co-authored-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Andrew Dunham cae6edf485 ipn/ipnlocal: fix data race with capForcedNetfilter field 
Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I1fdad454198d7ea4a898dbff3062818b0db35167
 2 years ago
Andrew Lytvynov 2716250ee8
all: cleanup unused code, part 2 (#10670) 
And enable U1000 check in staticcheck.

Updates #cleanup

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
James Tucker 0957258f84 appc,ipn: prevent undesirable route advertisements 
Individual route advertisements that are covered by existing routes are
no longer advertised. If an upstream returns 0.0.0.0, 127.x, and other
common unwanted addresses those are also rejected.

Updates #16425
Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Andrew Dunham a661287c4b util/cmpx: remove code that's in the stdlib now 
The cmpx.Compare function (and associated interface) are now available
in the standard library as cmp.Compare. Remove our version of it and use
the version from the standard library.

Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I4be3ac63d466c05eb7a0babb25cb0d41816fbd53
 2 years ago
Andrew Lytvynov 945cf836ee
ipn: apply tailnet-wide default for auto-updates (#10508) 
When auto-update setting in local Prefs is unset, apply the tailnet
default value from control. This only happens once, when we apply the
default (or when the user manually overrides it), tailnet default no
longer affects the node.

Updates #16244

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
Andrew Dunham 3ae562366b ipn/ipnlocal: fix usage of slices.Compact 
Fixes #10595

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I4e96e9c43b8dedb5f88b03368c01b0e46723e15b
 2 years ago
Adrian Dewhurst 86aa0485a6 ipn/ipnlocal, util/syspolicy: make run exit node a preference option 
Previously, the "RunExitNode" policy merely controlled the visibility of
the "run as exit node" menu item, not the setting itself. This migrates
that setting to a preference option named "AdvertiseExitNode".

Updates ENG-2138

Change-Id: Ia6a125beb6b4563d380c6162637ce4088f1117a0
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
 2 years ago
Adrian Dewhurst f706a3abd0 ipn/ipnlocal, util/syspolicy: add auto update policy 
Due to the Sparkle preference naming convention, macsys already has a
policy key named "ApplyUpdates" that merely shows or hides the menu
item that controls if auto updates are installed, rather than directly
controlling the setting.

For other platforms, we are going to use "InstallUpdates" instead
because it seemed better than the other options that were considered.

Updates ENG-2127
Updates tailscale/corp#16247

Change-Id: Ia6a125beb6b4563d380c6162637ce4088f1117a0
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
 2 years ago
Adrian Dewhurst 1a4d423328 ipn/ipnlocal: add additional syspolicy enforcement 
This adds support for enforcing exit node LAN access, DNS and subnet
routes.

Adding new preference policies was getting repetitive, so this turns
some of the boilerplate into a table.

Updates tailscale/corp#15585
Updates ENG-2240

Change-Id: Iabd3c42b0ae120b3145fac066c5caa7fc4d67824
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
 2 years ago
Adrian Dewhurst af32d1c120 ipn/ipnlocal: better enforce system policies 
Previously, policies affected the default prefs for a new profile, but
that does not affect existing profiles. This change ensures that
policies are applied whenever preferences are loaded or changed, so a
CLI or GUI client that does not respect the policies will still be
overridden.

Exit node IP is dropped from this PR as it was implemented elsewhere
in #10172.

Fixes tailscale/corp#15585

Change-Id: Ide4c3a4b00a64e43f506fa1fab70ef591407663f
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
 2 years ago
Naman Sood 0a59754eda linuxfw,wgengine/route,ipn: add c2n and nodeattrs to control linux netfilter 
Updates tailscale/corp#14029.

Signed-off-by: Naman Sood <mail@nsood.in>
 2 years ago
Sonia Appasamy 7a4ba609d9 client/web: show features based on platform support 
Hiding/disabling UI features when not available on the running
client.

Updates #10261

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
 2 years ago
Claire Wang 8af503b0c5
syspolicy: add exit node related policies (#10172) 
Adds policy keys ExitNodeID and ExitNodeIP.
Uses the policy keys to determine the exit node in preferences.
Fixes tailscale/corp#15683

Signed-off-by: Claire Wang <claire@tailscale.com>
 2 years ago
Sonia Appasamy bc4e303846 ipn/ipnstate: add AllowedIPs to PeerStatus 
Adds AllowedIPs to PeerStatus, allowing for easier lookup of the
routes allowed to be routed to a node. Will be using the AllowedIPs
of the self node from the web client interface to display approval
status of advertised routes.

Updates #10261

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
 2 years ago
Andrew Lytvynov ac4b416c5b
cmd/tailscale,ipn/ipnlocal: pass available update as health message (#10420) 
To be consistent with the formatting of other warnings, pass available
update health message instead of handling ClientVersion in he CLI.

Fixes #10312

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
Tom DNetto 8a660a6513 ipn/ipnlocal: update hostinfo when app connector state is toggled 
Updates: https://github.com/tailscale/corp/issues/16041
Signed-off-by: Tom DNetto <tom@tailscale.com>
 2 years ago
Tom DNetto 611e0a5bcc appc,ipn/local: support wildcard when matching app-connectors 
Updates: ENG-2453
Signed-off-by: Tom DNetto <tom@tailscale.com>
 2 years ago
Marwan Sulaiman 2dc0645368 ipn/ipnlocal,cmd/tailscale: persist tailnet name in user profile 
This PR starts to persist the NetMap tailnet name in SetPrefs so that tailscaled
clients can use this value to disambiguate fast user switching from one tailnet
to another that are under the same exact login. We will also try to backfill
this information during backend starts and profile switches so that users don't
have to re-authenticate their profile. The first client to use this new
information is the CLI in 'tailscale switch -list' which now uses text/tabwriter
to display the ID, Tailnet, and Account. Since account names are ambiguous, we
allow the user to pass 'tailscale switch ID' to specify the exact tailnet they
want to switch to.

Updates #9286

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
 2 years ago
Brad Fitzpatrick 3bd382f369 wgengine/magicsock: add DERP homeless debug mode for testing 
In DERP homeless mode, a DERP home connection is not sought or
maintained and the local node is not reachable.

Updates #3363
Updates tailscale/corp#396

Change-Id: Ibc30488ac2e3cfe4810733b96c2c9f10a51b8331
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Sonia Appasamy 055394f3be ipn/ipnlocal: add mutex to webClient struct 
Adds a new sync.Mutex field to the webClient struct, rather than
using the general LocalBackend mutex. Since webClientGetOrInit
(previously WebClientInit) gets called on every connection, we
want to avoid holding the lock on LocalBackend just to check if
the server is initialized.

Moves all web_client.go funcs over to using the webClient.mu field.

Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
 2 years ago
Will Norris 9b537f7c97 ipn: remove the preview-webclient node capability 
Now that 1.54 has released, and the new web client will be included in
1.56, we can remove the need for the node capability. This means that
all 1.55 unstable builds, and then eventually the 1.56 build, will work
without setting the node capability.

The web client still requires the "webclient" user pref, so this does
NOT mean that the web client will be on by default for all devices.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
Brad Fitzpatrick 1825d2337b
ipn/ipnlocal: respect ExitNodeAllowLANAccess on iOS (#10230) 
Updates tailscale/corp#15783

Change-Id: I1082fbfff61a241ebd3b8275be0f45e329b67561

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Joe Tsai 975c5f7684
taildrop: lazily perform full deletion scan after first taildrop use (#10137) 
Simply reading the taildrop directory can pop up security dialogs
on platforms like macOS. Avoid this by only performing garbage collection
of partial and deleted files after the first received taildrop file,
which would have prompted the security dialog window.

Updates tailscale/corp#14772

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
 2 years ago
Jordan Whited e848736927
control/controlknobs,wgengine/magicsock: implement SilentDisco toggle (#10195) 
This change exposes SilentDisco as a control knob, and plumbs it down to
magicsock.endpoint. No changes are being made to magicsock.endpoint
disco behavior, yet.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
James Tucker c54d680682 ipn,tailconfig: clean up unreleased and removed app connector service 
This was never released, and is replaced by HostInfo.AppConnector.

Updates tailscale/corp#15437
Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
James Tucker 0b6636295e tailcfg,ipn/ipnlocal: add hostinfo field to replace service entry 
Updates tailscale/corp#15437
Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
James Tucker 45be37cb01 ipn/ipnlocal: ensure that hostinfo is updated on app connector preference changes 
Some conditional paths may otherwise skip the hostinfo update, so kick
it off asynchronously as other code paths do.

Updates tailscale/corp#15437
Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Naman Sood e57fd9cda4
ipn/{ipnlocal,ipnstate,localapi}: add localapi endpoints for client self-update (#10188) 
* ipn/{ipnlocal,ipnstate,localapi}: add localapi endpoints for client self-update

Updates #10187.

Signed-off-by: Naman Sood <mail@nsood.in>

* depaware

Updates #10187.

Signed-off-by: Naman Sood <mail@nsood.in>

* address review feedback

Signed-off-by: Naman Sood <mail@nsood.in>

---------

Signed-off-by: Naman Sood <mail@nsood.in>
 2 years ago
Jordan Whited 12d5c99b04
client/tailscale,ipn/{ipnlocal,localapi}: check UDP GRO config (#10071) 
Updates tailscale/corp#9990

Signed-off-by: Jordan Whited <jordan@tailscale.com>
 2 years ago
Will Norris 09de240934 ipn/ipnlocal: allow connecting to local web client 
The local web client has the same characteristic as tailscale serve, in
that it needs a local listener to allow for connections from the local
machine itself when running in kernel networking mode.

This change renames and adapts the existing serveListener to allow it to
be used by the web client as well.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
Tom DNetto 11a20f371a ipn/ipnlocal: fix nil control client panic while updating TKA head 
As part of tailnet-lock netmap processing, the LocalBackend mutex
is unlocked so we can potentially make a network call. Its possible
(during shutdown or while the control client is being reset) for
b.cc to become nil before the lock is picked up again.

Fixes: #9554
Signed-off-by: Tom DNetto <tom@tailscale.com>
 2 years ago
Tom DNetto 3496d62ed3 ipn/ipnlocal: add empty address to the app-connector localNets set 
App connectors handle DNS requests for app domains over PeerAPI,
but a safety check verifies the requesting peer has at least permission
to send traffic to 0.0.0.0:53 (or 2000:: for IPv6) before handling the DNS
request. The correct filter rules are synthesized by the coordination server
and sent down, but the address needs to be part of the 'local net' for the
filter package to even bother checking the filter rules, so we set them here.
See: https://github.com/tailscale/corp/issues/11961 for more information.

Signed-off-by: Tom DNetto <tom@tailscale.com>
Updates: ENG-2405
 2 years ago
Will Norris 6b956b49e0 client/web: add some security checks for full client 
Require that requests to servers in manage mode are made to the
Tailscale IP (either ipv4 or ipv6) or quad-100. Also set various
security headers on those responses.  These might be too restrictive,
but we can relax them as needed.

Allow requests to /ok (even in manage mode) with no checks. This will be
used for the connectivity check from a login client to see if the
management client is reachable.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
Will Norris 658971d7c0 ipn/ipnlocal: serve web client on quad100 if enabled 
if the user pref and nodecap for the new web client are enabled, serve
the client over requests to 100.100.100.100.  Today, that is just a
static page that lists the local Tailcale IP addresses.

For now, this will render the readonly full management client, with an
"access" button that sends the user through check mode.  After
completing check mode, they will still be in the read-only view, since
they are not accessing the client over Tailscale.

Instead, quad100 should serve the lobby client that has a "manage"
button that will open the management client on the Tailscale IP (and
trigger check mode). That is something we'll fix in a subsequent PR in
the web client code itself.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
James Tucker f27b2cf569 appc,cmd/sniproxy,ipn/ipnlocal: split sniproxy configuration code out of appc 
The design changed during integration and testing, resulting in the
earlier implementation growing in the appc package to be intended now
only for the sniproxy implementation. That code is moved to it's final
location, and the current App Connector code is now renamed.

Updates tailscale/corp#15437

Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Sonia Appasamy aa5af06165 ipn/ipnlocal: include web client port in setTCPPortsIntercepted 
Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
 2 years ago
Sonia Appasamy b370274b29 ipn/ipnlocal: pull CapabilityPreviewWebClient into webClientAtomicBool 
Now uses webClientAtomicBool as the source of truth for whether the web
client should be running in tailscaled, with it updated when either the
RunWebClient pref or CapabilityPreviewWebClient node capability changes.

This avoids requiring holding the LocalBackend lock on each call to
ShouldRunWebClient to check for the CapabilityPreviewWebClient value.

Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
 2 years ago
James Tucker 228a82f178 ipn/ipnlocal,tailcfg: add AppConnector service to HostInfo when configured 
Updates tailscale/corp#15437

Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
James Tucker 6ad54fed00 appc,ipn/ipnlocal: add App Connector domain configuration from mapcap 
The AppConnector is now configured by the mapcap from the control plane.

Updates tailscale/corp#15437

Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
James Tucker b48b7d82d0 appc,ipn/ipnlocal,net/dns/resolver: add App Connector wiring when enabled in prefs 
An EmbeddedAppConnector is added that when configured observes DNS
responses from the PeerAPI. If a response is found matching a configured
domain, routes are advertised when necessary.

The wiring from a configuration in the netmap capmap is not yet done, so
while the connector can be enabled, no domains can yet be added.

Updates tailscale/corp#15437

Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Will Norris e7482f0df0 ipn/ipnlocal: prevent deadlock on WebClientShutdown 
WebClientShutdown tries to acquire the b.mu lock, so run it in a go
routine so that it can finish shutdown after setPrefsLockedOnEntry is
finished. This is the same reason b.sshServer.Shutdown is run in a go
routine.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
James Tucker 0ee4573a41 ipn/ipnlocal: fix small typo 
Updates #cleanup
Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Will Norris 66c7af3dd3 ipn: replace web client debug flag with node capability 
Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
Sonia Appasamy 44175653dc ipn/ipnlocal: rename web fields/structs to webClient 
For consistency and clarity around what the LocalBackend.web field
is used for.

Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
 2 years ago
Will Norris ea599b018c ipn: serve web client requests from LocalBackend 
instead of starting a separate server listening on a particular port,
use the TCPHandlerForDst method to intercept requests for the special
web client port (currently 5252, probably configurable later).

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
Will Norris 28ad910840 ipn: add user pref for running web client 
This is not currently exposed as a user-settable preference through
`tailscale up` or `tailscale set`.  Instead, the preference is set when
turning the web client on and off via localapi. In a subsequent commit,
the pref will be used to automatically start the web client on startup
when appropriate.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
 2 years ago
Sonia Appasamy 89953b015b ipn/ipnlocal,client/web: add web client to tailscaled 
Allows for serving the web interface from tailscaled, with the
ability to start and stop the server via localapi endpoints
(/web/start and /web/stop).

This will be used to run the new full management web client,
which will only be accessible over Tailscale (with an extra auth
check step over noise) from the daemon. This switch also allows
us to run the web interface as a long-lived service in environments
where the CLI version is restricted to CGI, allowing us to manage
certain auth state in memory.

ipn/ipnlocal/web is stubbed out in ipn/ipnlocal/web_stub for
ios builds to satisfy ios restriction from adding "text/template"
and "html/template" dependencies.

Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
 2 years ago
Rhea Ghosh 387a98fe28
ipn/ipnlocal: exclude tvOS devices from taildrop file targets (#10002) 2 years ago
Aaron Klotz 95671b71a6 ipn, safesocket: use Windows token in LocalAPI 
On Windows, the idiomatic way to check access on a named pipe is for
the server to impersonate the client on its current OS thread, perform
access checks using the client's access token, and then revert the OS
thread's access token back to its true self.

The access token is a better representation of the client's rights than just
a username/userid check, as it represents the client's effective rights
at connection time, which might differ from their normal rights.

This patch updates safesocket to do the aforementioned impersonation,
extract the token handle, and then revert the impersonation. We retain
the token handle for the remaining duration of the connection (the token
continues to be valid even after we have reverted back to self).

Since the token is a property of the connection, I changed ipnauth to wrap
the concrete net.Conn to include the token. I then plumbed that change
through ipnlocal, ipnserver, and localapi as necessary.

I also added a PermitLocalAdmin flag to the localapi Handler which I intend
to use for controlling access to a few new localapi endpoints intended
for configuring auto-update.

Updates https://github.com/tailscale/tailscale/issues/755

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
 2 years ago
Maisem Ali 17b2072b72 ipn/ipnlocal: set the push device token correctly 
It would end up resetting whatever hostinfo we had constructed
and leave the backend statemachine in a broken state.
This fixes that by storing the PushDeviceToken on the LocalBackend
and populating it on Hostinfo before passing it to controlclient.

Updates tailscale/corp#8940
Updates tailscale/corp#15367

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali 0e89245c0f ipn/ipnlocal: drop hostinfo param from doSetHostinfoFilterServices 
The value being passed was the same as whats on b.hostinfo, so just
use that directly.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali f398712c00 ipn/ipnlocal: prevent changing serve config if conf.Locked 
This adds a check to prevent changes to ServeConfig if tailscaled
is run with a Locked config.

Missed in 1fc3573446.

Updates #1412

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Irbe Krumina eced054796
ipn/ipnlocal: close connections for removed proxy transports (#9884) 
Ensure that when a userspace proxy config is reloaded,
connections for any removed proxies are safely closed

Updates tailscale/tailscale#9725

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
 2 years ago
Andrew Lytvynov 25b6974219
ipn/ipnlocal: send ClientVersion to Apple frontends (#9887) 
Apple frontends will now understand this Notify field and handle it.

Updates #755

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
Joe Tsai c2a551469c
taildrop: implement asynchronous file deletion (#9844) 
File resumption requires keeping partial files around for some time,
but we must still eventually delete them if never resumed.
Thus, we implement asynchronous file deletion, which could
spawn a background goroutine to delete the files.

We also use the same mechanism for deleting files on Windows,
where a file can't be deleted if there is still an open file handle.
We can enqueue those with the asynchronous file deleter as well.

Updates tailscale/corp#14772

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
 2 years ago
Brad Fitzpatrick 1fc3573446 ipn/{conffile,ipnlocal}: start booting tailscaled from a config file w/ auth key 
Updates #1412

Change-Id: Icd880035a31df59797b8379f4af19da5c4c453e2
Co-authored-by: Maisem Ali <maisem@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Andrew Lytvynov b949e208bb
ipn/ipnlocal: fix AllowsUpdate disable after enable (#9827) 
The old code would always retain value `true` if it was set once, even
if you then change `prefs.AutoUpdate.Apply` to `false`.
Instead of using the previous value, use the default (envknob) value to
OR with.

Updates #755

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
Brad Fitzpatrick 18bd98d35b cmd/tailscaled,*: add start of configuration file support 
Updates #1412

Co-authored-by: Maisem Ali <maisem@tailscale.com>
Change-Id: I38d559c1784d09fc804f521986c9b4b548718f7d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Andrew Lytvynov af5a586463
ipn/ipnlocal: include AutoUpdate prefs in HostInfo.AllowsUpdate (#9792) 
Updates #9260

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
Joe Tsai b1867eb23f
taildrop: add logic for resuming partial files (#9785) 
We add the following API:
* type FileChecksums
* type Checksum
* func Manager.PartialFiles
* func Manager.HashPartialFile
* func ResumeReader

The Manager methods provide the ability to query for partial files
and retrieve a list of checksums for a given partial file.
The ResumeReader function is a helper that wraps an io.Reader
to discard content that is identical locally and remotely.
The FileChecksums type represents the checksums of a file
and is safe to JSON marshal and send over the wire.

Updates tailscale/corp#14772

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
Co-authored-by: Rhea Ghosh <rhea@tailscale.com>
 2 years ago
Joe Tsai 37c646d9d3
taildrop: improve the functionality and reliability of put (#9762) 
Changes made:
* Move all HTTP related functionality from taildrop to ipnlocal.
* Add two arguments to taildrop.Manager.PutFile to specify
  an opaque client ID and a resume offset (both unused for now).
* Cleanup the logic of taildrop.Manager.PutFile
  to be easier to follow.
* Implement file conflict handling where duplicate files are renamed
  (e.g., "IMG_1234.jpg" -> "IMG_1234 (2).jpg").
* Implement file de-duplication where "renaming" a partial file
  simply deletes it if it already exists with the same contents.
* Detect conflicting active puts where a second concurrent put
  results in an error.

Updates tailscale/corp#14772

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
Co-authored-by: Rhea Ghosh <rhea@tailscale.com>
 2 years ago
Brad Fitzpatrick 6f36f8842c cmd/tailscale, magicsock: add debug command to flip DERP homes 
For testing netmap patchification server-side.

Updates #1909

Change-Id: Ib1d784bd97b8d4a31e48374b4567404aae5280cc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Joe Tsai e4cb83b18b
taildrop: document and cleanup the package (#9699) 
Changes made:
* Unexport declarations specific to internal taildrop functionality.
* Document all exported functionality.
* Move TestRedactErr to the taildrop package.
* Rename and invert Handler.DirectFileDoFinalRename as AvoidFinalRename.

Updates tailscale/corp#14772

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
 2 years ago
Rhea Ghosh 557ddced6c
{ipn/ipnlocal, taildrop}: move put logic to taildrop (#9680) 
Cleaning up taildrop logic for sending files.

Updates tailscale/corp#14772

Signed-off-by: Rhea Ghosh <rhea@tailscale.com>
Co-authored-by: Joe Tsai <joetsai@digital-static.net>
 2 years ago
Rhea Ghosh dc1c7cbe3e
taildrop: initial commit of taildrop functionality refactoring (#9676) 
Over time all taildrop functionality will be contained in the
taildrop package. This will include end to end unit tests. This is
simply the first smallest piece to move over.

There is no functionality change in this commit.

Updates tailscale/corp#14772

Signed-off-by: Rhea Ghosh <rhea@tailscale.com>
Co-authored-by: Joseph Tsai <joetsai@tailscale.com>
 2 years ago
Brad Fitzpatrick 7868393200 net/dns/resolver, ipnlocal: fix ExitDNS on Android and iOS 
Advertise it on Android (it looks like it already works once advertised).

And both advertise & likely fix it on iOS. Yet untested.

Updates #9672

Change-Id: If3b7e97f011dea61e7e75aff23dcc178b6cf9123
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Val 73e53dcd1c cmd/tailscale,ipn/ipnlocal: print debug component names 
Make the 'tailscale debug component-logs' command print the component names for
which extra logging can be turned on, for easier discoverability of debug
functions.

Updates #cleanup

Co-authored-by: Paul Scott <paul@tailscale.com>
Signed-off-by: Val <valerie@tailscale.com>
 2 years ago
Brad Fitzpatrick 246e0ccdca tsnet: add a test for restarting a tsnet server, fix Windows 
Thanks to @qur and @eric for debugging!

Fixes #6973

Change-Id: Ib2cf8f030cf595cc73dd061c72e78ac19f5fae5d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
James Tucker 5c2b2fa1f8 ipn/ipnlocal: plumb ExitNodeDNSResolvers for IsWireGuardOnly exit nodes 
Control sends ExitNodeDNSResolvers when configured for IsWireGuardOnly
nodes that are to be used as the default resolver with a lower
precedence than split DNS, and a lower precedence than "Override local
DNS", but otherwise before local DNS is used when the exit node is in
use.

Neither of the below changes were problematic, but appeared so alongside
a number of other client and external changes. See tailscale/corp#14809.

Reland ea9dd8fabc.
Reland d52ab181c3.

Updates #9377
Updates tailscale/corp#14809

Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Marwan Sulaiman 651620623b ipn/ipnlocal: close foreground sessions on SetServeConfig 
This PR ensures zombie foregrounds are shutdown if a new
ServeConfig is created that wipes the ongoing foreground ones.
For example, "tailscale serve|funnel reset|off" should close
all open sessions.

Updates #8489

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
 2 years ago
Brad Fitzpatrick 04fabcd359 ipn/{ipnlocal,localapi}, cli: add debug force-netmap-update 
For loading testing & profiling the cost of full netmap updates.

Updates #1909

Change-Id: I0afdf5de9967f8d95c7f81d5b531ed1c92c3208f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Joe Tsai ae89482f25
ipn/ipnlocal: fix LocalBackend.WhoIs for self (#9472) 
9538e9f970 broke LocalBackend.WhoIs
where you can no longer lookup yourself in WhoIs.
This occurs because the LocalBackend.peers map only contains peers.
If we fail to lookup a peer, double-check whether it is ourself.

Fixes #9470

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
Co-authored-by: Rhea Ghosh <rhea@tailscale.com>
 2 years ago
Maisem Ali ea9dd8fabc Revert "ipn/ipnlocal: plumb ExitNodeDNSResolvers for IsWireGuardOnly exit nodes" 
This reverts commit f6845b10f6.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
James Tucker d52ab181c3 Revert "ipn/ipnlocal: allow Split-DNS and default resolvers with WireGuard nodes" 
This reverts commit c7ce4e07e5.

Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
James Tucker c7ce4e07e5 ipn/ipnlocal: allow Split-DNS and default resolvers with WireGuard nodes 
The initial implementation directly mirrored the behavior of Tailscale
exit nodes, where the WireGuard exit node DNS took precedence over other
configuration.

This adjusted implementation treats the WireGuard DNS
resolvers as a lower precedence default resolver than the tailnet
default resolver, and allows split DNS configuration as well.

This also adds test coverage to the existing DNS selection behavior with
respect to default resolvers and split DNS routes for Tailscale exit
nodes above cap 25. There may be some refinement to do in the logic in
those cases, as split DNS may not be working as we intend, though that
would be a pre-existing and separate issue.

Updates #9377
Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Maisem Ali 19a9d9037f tailcfg: add NodeCapMap 
Like PeerCapMap, add a field to `tailcfg.Node` which provides
a map of Capability to raw JSON messages which are deferred to be
parsed later by the application code which cares about the specific
capabilities. This effectively allows us to prototype new behavior
without having to commit to a schema in tailcfg, and it also opens up
the possibilities to develop custom behavior in tsnet applications w/o
having to plumb through application specific data in the MapResponse.

Updates #4217

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali 4da0689c2c tailcfg: add Node.HasCap helpers 
This makes a follow up change less noisy.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Sonia Appasamy 258f16f84b ipn/ipnlocal: add tailnet MagicDNS name to ipn.LoginProfile 
Start backfilling MagicDNS suffixes on LoginProfiles.

Updates #9286

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
 2 years ago
Brad Fitzpatrick 0d991249e1 types/netmap: remove NetworkMap.{Addresses,MachineStatus} 
And convert all callers over to the methods that check SelfNode.

Now we don't have multiple ways to express things in tests (setting
fields on SelfNode vs NetworkMap, sometimes inconsistently) and don't
have multiple ways to check those two fields (often only checking one
or the other).

Updates #9443

Change-Id: I2d7ba1cf6556142d219fae2be6f484f528756e3c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Maisem Ali a61caea911 tailcfg: define a type for NodeCapability 
Instead of untyped string, add a type to identify these.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Brad Fitzpatrick 3d37328af6 wgengine, proxymap: split out port mapping from Engine to new type 
(Continuing quest to remove rando stuff from the "Engine")

Updates #cleanup

Change-Id: I77f39902c2194410c10c054b545d70c9744250b0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick db2f37d7c6 ipn/ipnlocal: add some test accessors 
Updates tailscale/corp#12990

Change-Id: I82801ac4c003d2c7e1352c514adb908dbf01be87
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 9538e9f970 ipn/ipnlocal: keep internal map updated of latest Nodes post mutations 
We have some flaky integration tests elsewhere that have no one place
to ask about the state of the world. This makes LocalBackend be that
place (as it's basically there anyway) but doesn't yet add the ForTest
accessor method.

This adds a LocalBackend.peers map[NodeID]NodeView that is
incrementally updated as mutations arrive. And then we start moving
away from using NetMap.Peers at runtime (UpdateStatus no longer uses
it now). And remove another copy of NodeView in the LocalBackend
nodeByAddr map. Change that to point into b.peers instead.

Future changes will then start streaming whole-node-granularity peer
change updates to WatchIPNBus clients, tracking statefully per client
what each has seen. This will get the GUI clients from receiving less
of a JSON storm of updates all the time.

Updates #1909

Change-Id: I14a976ca9f493bdf02ba7e6e05217363dcf422e5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 926c990a09 types/netmap: start phasing out Addresses, add GetAddresses method 
NetworkMap.Addresses is redundant with the SelfNode.Addresses. This
works towards a TODO to delete NetworkMap.Addresses and replace it
with a method.

This is similar to #9389.

Updates #cleanup

Change-Id: Id000509ca5d16bb636401763d41bdb5f38513ba0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick fb5ceb03e3 types/netmap: deprecate NetworkMap.MachineStatus, add accessor method 
Step 1 of deleting it, per TODO.

Updates #cleanup

Change-Id: I1d3d0165ae5d8b20610227d60640997b73568733
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 0f3c279b86 ipn/ipnlocal: delete some unused code 
Updates #cleanup

Change-Id: I90b46c476f135124d97288e776c2b428b351b8b8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 760b945bc0 ipn/{ipnlocal,ipnstate}: start simplifying UpdateStatus/StatusBuilder 
* Remove unnecessary mutexes (there's no concurrency)
* Simplify LocalBackend.UpdateStatus using the StatusBuilder.WantPeers
  field that was added in 0f604923d3, removing passing around some
  method values into func args. And then merge two methods.

More remains, but this is a start.

Updates #9433

Change-Id: Iaf2d7ec6e4e590799f00bae185465a4fd089b822
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
James Tucker f6845b10f6 ipn/ipnlocal: plumb ExitNodeDNSResolvers for IsWireGuardOnly exit nodes 
This enables installing default resolvers specified by
tailcfg.Node.ExitNodeDNSResolvers when the exit node is selected.

Updates #9377

Signed-off-by: James Tucker <james@tailscale.com>
 2 years ago
Brad Fitzpatrick 99bb355791 wgengine: remove DiscoKey method from Engine interface 
It has one user (LocalBackend) which can ask magicsock itself.

Updates #cleanup

Change-Id: I8c03cbb1e5ba57b0b442621b5fa467030c14a2e2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 3c276d7de2 wgengine: remove SetDERPMap method from Engine interface 
(continuing the mission of removing rando methods from the Engine
 interface that we don't need anymore)

Updates #cleanup

Change-Id: Id5190917596bf04d7185c3b331a852724a3f5a16
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 67396d716b ipn/ipnlocal: remove defensiveness around not having a magicsock.Conn 
We always have one. Stop pretending we might not.

Instead, add one early panic in NewLocalBackend if we actually don't.

Updates #cleanup

Change-Id: Iba4b78ed22cb6248e59c2b01a79355ca7a200ec8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 727b1432a8 wgengine: remove SetNetInfoCallback method from Engine 
LocalBackend can talk to magicsock on its own to do this without
the "Engine" being involved.

(Continuing a little side quest of cleaning up the Engine
interface...)

Updates #cleanup

Change-Id: I8654acdca2b883b1bd557fdc0cfb90cd3a418a62
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 343c0f1031 wgengine{,/netstack}: remove AddNetworkMapCallback from Engine interface 
It had exactly one user: netstack. Just have LocalBackend notify
netstack when here's a new netmap instead, simplifying the bloated
Engine interface that has grown a bunch of non-Engine-y things.
(plenty of rando stuff remains after this, but it's a start)

Updates #cleanup

Change-Id: I45e10ab48119e962fc4967a95167656e35b141d8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 3af051ea27 control/controlclient, types/netmap: start plumbing delta netmap updates 
Currently only the top four most popular changes: endpoints, DERP
home, online, and LastSeen.

Updates #1909

Change-Id: I03152da176b2b95232b56acabfb55dcdfaa16b79
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 7c1ed38ab3 ipn/ipnlocal: fix missing controlknobs.Knobs plumbing 
I missed connecting some controlknobs.Knobs pieces in 4e91cf20a8
resulting in that breaking control knobs entirely.

Whoops.

The fix in ipn/ipnlocal (where it makes a new controlclient) but to
atone, I also added integration tests. Those integration tests use
a new "tailscale debug control-knobs" which by itself might be useful
for future debugging.

Updates #9351

Change-Id: Id9c89c8637746d879d5da67b9ac4e0d2367a3f0d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 4e91cf20a8 control/controlknobs, all: add plumbed Knobs type, not global variables 
Previously two tsnet nodes in the same process couldn't have disjoint
sets of controlknob settings from control as both would overwrite each
other's global variables.

This plumbs a new controlknobs.Knobs type around everywhere and hangs
the knobs sent by control on that instead.

Updates #9351

Change-Id: I75338646d36813ed971b4ffad6f9a8b41ec91560
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 9a86aa5732 all: depend on zstd unconditionally, remove plumbing to make it optional 
All platforms use it at this point, including iOS which was the
original hold out for memory reasons. No more reason to make it
optional.

Updates #9332

Change-Id: I743fbc2f370921a852fbcebf4eb9821e2bdd3086
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Andrew Lytvynov d23b8ffb13
cmd/tailscale/cli,ipn: mention available update in "tailscale status" (#9205) 
Cache the last `ClientVersion` value that was received from coordination
server and pass it in the localapi `/status` response.
When running `tailscale status`, print a message if `RunningAsLatest` is
`false`.

Updates #6907

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
Andrew Lytvynov 1073b56e18
ipn/ipnlocal: add logging and locking to c2n /update (#9290) 
Log some progress info to make updates more debuggable. Also, track
whether an active update is already started and return an error if
a concurrent update is attempted.

Some planned future PRs:
* add JSON output to `tailscale update`
* use JSON output from `tailscale update` to provide a more detailed
  status of in-progress update (stage, download progress, etc)

Updates #6907

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
 2 years ago
Marwan Sulaiman 50990f8931 ipn, ipn/ipnlocal: add Foreground field for ServeConfig 
This PR adds a new field to the serve config that can be used to identify which serves are in "foreground mode" and then can also be used to ensure they do not get persisted to disk so that if Tailscaled gets ungracefully shutdown, the reloaded ServeConfig will not have those ports opened.

Updates #8489

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
 2 years ago
Marwan Sulaiman 51d3220153 ipn, ipn/ipnlocal: remove log streaming for StreamServe 
This PR removes the per request logging to the CLI as the CLI
will not be displaying those logs initially.

Updates #8489

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
 2 years ago
Marwan Sulaiman 45eeef244e ipn, ipn/ipnlocal: add Foreground field to ServeConfig 
This PR adds a new field to the ServeConfig which maps
WatchIPNBus session ids to foreground serve configs.

The PR also adds a DeleteForegroundSession method to ensure the config
gets cleaned up on sessions ending.

Note this field is not currently used but will be in follow up work.

Updates #8489

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
 2 years ago
Maisem Ali cb3b281e98 ipn/ipnlocal: fix race in enterState 
It would acquire the lock, calculate `nextState`, relase
the lock, then call `enterState` which would acquire the lock
again. There were obvious races there which could lead to
nil panics as seen in a test in a different repo.

```
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x70 pc=0x1050f2c7c]

goroutine 42240 [running]:
tailscale.com/ipn/ipnlocal.(*LocalBackend).enterStateLockedOnEntry(0x14002154e00, 0x6)
        tailscale.com/ipn/ipnlocal/local.go:3715 +0x30c
tailscale.com/ipn/ipnlocal.(*LocalBackend).enterState(0x14002154e00?, 0x14002e3a140?)
        tailscale.com/ipn/ipnlocal/local.go:3663 +0x8c
tailscale.com/ipn/ipnlocal.(*LocalBackend).stateMachine(0x14001f5e280?)
        tailscale.com/ipn/ipnlocal/local.go:3836 +0x2c
tailscale.com/ipn/ipnlocal.(*LocalBackend).setWgengineStatus(0x14002154e00, 0x14002e3a190, {0x0?, 0x0?})
        tailscale.com/ipn/ipnlocal/local.go:1193 +0x4d0
tailscale.com/wgengine.(*userspaceEngine).RequestStatus(0x14005d90300)
        tailscale.com/wgengine/userspace.go:1051 +0x80
tailscale.com/wgengine.NewUserspaceEngine.func2({0x14002e3a0a0, 0x2, 0x140025cce40?})
        tailscale.com/wgengine/userspace.go:318 +0x1a0
tailscale.com/wgengine/magicsock.(*Conn).updateEndpoints(0x14002154700, {0x105c13eaf, 0xf})
        tailscale.com/wgengine/magicsock/magicsock.go:531 +0x424
created by tailscale.com/wgengine/magicsock.(*Conn).ReSTUN in goroutine 42077
        tailscale.com/wgengine/magicsock/magicsock.go:2142 +0x3a4
```

Updates tailscale/corp#14480

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Marwan Sulaiman a4aa6507fa ipn, ipn/ipnlocal: add session identifier for WatchIPNBus 
This PR adds a SessionID field to the ipn.Notify struct so that
ipn buses can identify a session and register deferred clean up
code in the future. The first use case this is for is to be able to
tie foreground serve configs to a specific watch session and ensure
its clean up when a connection is closed.

Updates #8489

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
 2 years ago
Maisem Ali 52a19b5970 ipn/ipnlocal: prevent cc leaks on multiple Start calls 
If Start was called multiple times concurrently, it would
create a new client and shutdown the previous one. However
there was a race possible between shutting down the old one
and assigning a new one where the concurent goroutine may
have assigned another one already and it would leak.

Updates tailscale/corp#14471

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali 6bc15f3a73 ipn/ipnlocal: fix startIsNoopLocked 
It got broken back when FUS was introduced, but we
never caught it.

Updates tailscale/corp#14471

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali d06a75dcd0 ipn/ipnlocal: fix deadlock in resetControlClientLocked 
resetControlClientLocked is called while b.mu was held and
would call cc.Shutdown which would wait for the observer queue
to drain.
However, there may be active callbacks from cc already waiting for
b.mu resulting in a deadlock.

This makes it so that resetControlClientLocked does not call
Shutdown, and instead just returns the value.
It also makes it so that any status received from previous cc
are ignored.

Updates tailscale/corp#12827

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Brad Fitzpatrick 0c1e3ff625 ipn/ipnlocal: avoid calling Start from resetForProfileChangeLockedOnEntry 
During Shutdown of an ephemeral node, we called Logout (to best effort
delete the node earlier), which then called back into
resetForProfileChangeLockedOnEntry, which then tried to Start
again. That's all a waste of work during shutdown and complicates
other cleanups coming later.

Updates #cleanup

Change-Id: I0b8648cac492fc70fa97c4ebef919bbe352c5d7b
Co-authored-by: Maisem Ali <maisem@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick f7b7ccf835 control/controlclient, ipn/ipnlocal: unplumb a bool true literal opt 
Updates #cleanup

Change-Id: I664f280a2e06b9875942458afcaf6be42a5e462a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Maisem Ali 96277b63ff ipn/ipnlocal: rename LogoutSync to Logout 
Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali f52273767f ipn/ipnlocal: fix missing mutex usage for profileManager 
It required holding b.mu but was documented incorrectly, fix.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali 959362a1f4 ipn/ipnlocal,control/controlclient: make Logout more sync 
We already removed the async API, make it more sync and remove
the FinishLogout state too.

This also makes the callback be synchronous again as the previous
attempt was trying to work around the logout callback resulting
in a client shutdown getting blocked forever.

Updates #3833

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali 7074a40c06 control/controlclient: run SetControlClientStatus in goroutine 
We have cases where the SetControlClientStatus would result in
a Shutdown call back into the auto client that would block
forever. The right thing to do here is to fix the LocalBackend
state machine but thats a different dumpster fire that we
are slowly making progress towards.

This makes it so that the SetControlClientStatus happens in a
different goroutine so that calls back into the auto client
do not block.

Also add a few missing mu.Unlocks in LocalBackend.Start.

Updates #9181

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Brad Fitzpatrick 61ae16cb6f ipn/ipnlocal: add missing mutex unlock in error path 
Found while debugging something else.

Updates #cleanup

Change-Id: I73fe55da14bcc3b1ffc39e2dbc0d077bc7f70cf1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 21247f766f ipn/ipnlocal: deflake some tests 
* don't try to re-Start (and thus create a new client) during Shutdown
* in tests, wait for controlclient to fully shut down when replacing it
* log a bit more

Updates tailscale/corp#14139
Updates tailscale/corp#13175 etc
Updates #9178 and its flakes.

Change-Id: I3ed2440644dc157aa6e616fe36fbd29a6056846c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 04e1ce0034 control/controlclient: remove unused StartLogout 
Updates #cleanup

Co-authored-by: Maisem Ali <maisem@tailscale.com>
Change-Id: I9d052fdbee787f1e8c872124e4bee61c7f04d142
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick f5bfdefa00 control/controlclient: de-pointer Status.PersistView, document more 
Updates #cleanup
Updates #1909

Change-Id: I31d91e120e3b299508de2136021eab3b34131a44
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 7053e19562 control/controlclient: delete Status.Log{in,out}Finished 
They were entirely redundant and 1:1 with the status field
so this turns them into methods instead.

Updates #cleanup
Updates #1909

Change-Id: I7d939750749edf7dae4c97566bbeb99f2f75adbc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Val 8ba07aac85 ipn/iplocale: remove unused argument to shouldUseOneCGNATRoute 
Remove an unused argument to shouldUseOneCGNATRoute.

Updates #cleanup

Signed-off-by: Val <valerie@tailscale.com>
 2 years ago
Brad Fitzpatrick 55bb7314f2 control/controlclient: replace a status func with Observer interface 
For now the method has only one interface (the same as the func it's
replacing) but it will grow, eventually with the goal to remove the
controlclient.Status type for most purposes.

Updates #1909

Change-Id: I715c8bf95e3f5943055a94e76af98d988558a2f2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick ea4425d8a9 ipn/ipnlocal, wgengine/magicsock: move UpdateStatus stuff around 
Upcoming work on incremental netmap change handling will require some
replumbing of which subsystems get notified about what. Done naively,
it could break "tailscale status --json" visibility later. To make sure
I understood the flow of all the updates I was rereading the status code
and realized parts of ipnstate.Status were being populated by the wrong
subsystems.

The engine (wireguard) and magicsock (data plane, NAT traveral) should
only populate the stuff that they uniquely know. The WireGuard bits
were fine but magicsock was populating stuff stuff that LocalBackend
could've better handled, so move it there.

Updates #1909

Change-Id: I6d1b95d19a2d1b70fbb3c875fac8ea1e169e8cb0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 9089efea06 net/netmon: make ChangeFunc's signature take new ChangeDelta, not bool 
Updates #9040

Change-Id: Ia43752064a1a6ecefc8802b58d6eaa0b71cf1f84
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 947def7688 types/netmap: remove redundant Netmap.Hostinfo 
It was in SelfNode.Hostinfo anyway. The redundant copy was just
costing us an allocation per netmap (a Hostinfo.Clone).

Updates #1909

Change-Id: Ifac568aa5f8054d9419828489442a0f4559bc099
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Marwan Sulaiman 35ff5bf5a6 cmd/tailscale/cli, ipn/ipnlocal: [funnel] add stream mode 
Adds ability to start Funnel in the foreground and stream incoming
connections. When foreground process is stopped, Funnel is turned
back off for the port.

Exampe usage:
```
TAILSCALE_FUNNEL_V2=on tailscale funnel 8080
```

Updates #8489

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
 2 years ago
Brad Fitzpatrick 84b94b3146 types/netmap, all: make NetworkMap.SelfNode a tailcfg.NodeView 
Updates #1909

Change-Id: I8c470cbc147129a652c1d58eac9b790691b87606
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 165f0116f1 types/netmap: move some mutations earlier, remove, document some fields 
And optimize the Persist setting a bit, allocating later and only mutating
fields when there's been a Node change.

Updates #1909

Change-Id: Iaddfd9e88ef76e1d18e8d0a41926eb44d0955312
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 4511e7d64e ipn/ipnstate: add PeerStatus.AltSharerUserID, stop mangling Node.User 
In b987b2ab18 (2021-01-12) when we introduced sharing we mapped
the sharer to the userid at a low layer, mostly to fix the display of
"tailscale status" and the client UIs, but also some tests.

The commit earlier today, 7dec09d169, removed the 2.5yo option
to let clients disable that automatic mapping, as clearly we were never
getting around to it.

This plumbs the Sharer UserID all the way to ipnstatus so the CLI
itself can choose to print out the Sharer's identity over the node's
original owner.

Then we stop mangling Node.User and let clients decide how they want
to render things.

To ease the migration for the Windows GUI (which currently operates on
tailcfg.Node via the NetMap from WatchIPNBus, instead of PeerStatus),
a new method Node.SharerOrUser is added to do the mapping of
Sharer-else-User.

Updates #1909
Updates tailscale/corp#1183

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 58a4fd43d8 types/netmap, all: use read-only tailcfg.NodeView in NetworkMap 
Updates #8948

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 6e57dee7eb cmd/viewer, types/views, all: un-special case slice of netip.Prefix 
Make it just a views.Slice[netip.Prefix] instead of its own named type.

Having the special case led to circular dependencies in another WIP PR
of mine.

Updates #8948

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick af2e4909b6 all: remove some Debug fields, NetworkMap.Debug, Reconfig Debug arg 
Updates #8923

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 121d1d002c tailcfg: add nodeAttrs for forcing OneCGNAT on/off [capver 71] 
Updates #8923

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 25663b1307 tailcfg: remove most Debug fields, move bulk to nodeAttrs [capver 70] 
Now a nodeAttr: ForceBackgroundSTUN, DERPRoute, TrimWGConfig,
DisableSubnetsIfPAC, DisableUPnP.

Kept support for, but also now a NodeAttr: RandomizeClientPort.

Removed: SetForceBackgroundSTUN, SetRandomizeClientPort (both never
used, sadly... never got around to them. But nodeAttrs are better
anyway), EnableSilentDisco (will be a nodeAttr later when that effort
resumes).

Updates #8923

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick e8551d6b40 all: use Go 1.21 slices, maps instead of x/exp/{slices,maps} 
Updates #8419

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Maisem Ali 98ec8924c2 ipn/ipnlocal,net/tsdial: update docs/rename funcs 
Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Brad Fitzpatrick 92fc9a01fa cmd/tailscale: add debug commands to break connections 
For testing reconnects.

Updates tailscale/corp#5761

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Maisem Ali 682fd72f7b util/testenv: add new package to hold InTest 
Removes duplicated code.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali 734928d3cb control/controlclient: make Direct own all changes to Persist 
It was being modified in two places in Direct for the auth routine
and then in LocalBackend when a new NetMap was received. This was
confusing, so make Direct also own changes to Persist when a new
NetMap is received.

Updates #7726

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali 6aaf1d48df types/persist: drop duplicated Persist.LoginName 
It was duplicated from Persist.UserProfile.LoginName, drop it.

Updates #7726

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali 82454b57dd ipn/ipnlocal: make tests pass when offline 
Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
salman aljammaz 25a7204bb4
wgengine,ipn,cmd/tailscale: add size option to ping (#8739) 
This adds the capability to pad disco ping message payloads to reach a
specified size. It also plumbs it through to the tailscale ping -size
flag.

Disco pings used for actual endpoint discovery do not use this yet.

Updates #311.

Signed-off-by: salman <salman@tailscale.com>
Co-authored-by: Val <valerie@tailscale.com>
 2 years ago
Brad Fitzpatrick c56e94af2d ipn: avoid useless no-op WriteState calls 
Rather than make each ipn.StateStore implementation guard against
useless writes (a write of the same value that's already in the
store), do writes via a new wrapper that has a fast path for the
unchanged case.

This then fixes profileManager's flood of useless writes to AWS SSM,
etc.

Updates #8785

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Brad Fitzpatrick 66e46bf501 ipnlocal, net/*: deprecate interfaces.GetState, use netmon more for it 
Updates #cleanup

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
Claire Wang 2315bf246a
ipn: use tstime (#8597) 
Updates #8587
Signed-off-by: Claire Wang <claire@tailscale.com>
 2 years ago
Charlotte Brandhorst-Satzkorn 35bdbeda9f cli: introduce exit-node subcommand to list and filter exit nodes 
This change introduces a new subcommand, `exit-node`, along with a
subsubcommand of `list` and a `--filter` flag.

Exit nodes without location data will continue to be displayed when
`status` is used. Exit nodes with location data will only be displayed
behind `exit-node list`, and in status if they are the active exit node.

The `filter` flag can be used to filter exit nodes with location data by
country.

Exit nodes with Location.Priority data will have only the highest
priority option for each country and city listed. For countries with
multiple cities, a <Country> <Any> option will be displayed, indicating
the highest priority node within that country.

Updates tailscale/corp#13025

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
 2 years ago
Maisem Ali 1ecc16da5f tailcfg,ipn/ipnlocal,wgengine: add values to PeerCapabilities 
Define PeerCapabilty and PeerCapMap as the new way of sending down
inter-peer capability information.

Previously, this was unstructured and you could only send down strings
which got too limiting for certain usecases. Instead add the ability
to send down raw JSON messages that are opaque to Tailscale but provide
the applications to define them however they wish.

Also update accessors to use the new values.

Updates #4217

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Tom DNetto 2bbedd2001 ipn: rename CapTailnetLockAlpha -> CapTailnetLock 
Updates tailscale/corp#8568
Signed-off-by: Tom DNetto <tom@tailscale.com>
 2 years ago
Brad Fitzpatrick 7b1c3dfd28 tailcfg,etc: remove unused tailcfg.Node.KeepAlive field 
The server hasn't sent it in ages.

Updates #cleanup

Change-Id: I9695ab0f074ec6fb006e11faf3cdfc5ca049fbf8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2 years ago
shayne 6697690b55
{cmd/tailscale/cli,ipn}: add http support to tailscale serve (#8358) 
Updates #8357

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
 2 years ago
Maisem Ali 2ae670eb71 ssh/tailssh: work around lack of scontext in SELinux 
Trying to SSH when SELinux is enforced results in errors like:

```
➜  ~ ssh ec2-user@<ip>
Last login: Thu Jun  1 22:51:44 from <ip2>
ec2-user: no shell: Permission denied
Connection to <ip> closed.
```

while the `/var/log/audit/audit.log` has
```
type=AVC msg=audit(1685661291.067:465): avc:  denied  { transition } for  pid=5296 comm="login" path="/usr/bin/bash" dev="nvme0n1p1" ino=2564 scontext=system_u:system_r:unconfined_service_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process permissive=0
```

The right fix here would be to somehow install the appropriate context when
tailscale is installed on host, but until we figure out a way to do that
stop using the `login` cmd in these situations.

Updates #4908

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 2 years ago
Maisem Ali fe95d81b43 ipn/ipnlocal,wgengine/netstack: move LocalBackend specifc serving logic to LocalBackend 
The netstack code had a bunch of logic to figure out if the LocalBackend should handle an
incoming connection and then would call the function directly on LocalBackend. Move that
logic to LocalBackend and refactor the methods to return conn handlers.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Brad Fitzpatrick eefee6f149 all: use cmpx.Or where it made sense 
I left a few out where writing it explicitly was better
for various reasons.

Updates #8296

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Marwan Sulaiman 5dd0b02133 portlist: add a synchronous Poll method 
This is a follow up on PR #8172 that adds a synchronous Poll method
which allows for the Poller to be used as a zero value without needing
the constructor. The local backend is also changed to use the new API.
A follow up PR will remove the async functionality from the portlist package.

Updates #8171

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
 3 years ago
Charlotte Brandhorst-Satzkorn 8d3d48e000 ipn/ipnlocal: add NodeKey func to return the public node NodeKey 
This change introduces a NodeKey func on localbackend that returns the
public node key.

Updates tailscale/corp#9967

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
 3 years ago
Brad Fitzpatrick 6e967446e4 tsd: add package with System type to unify subsystem init, discovery 
This is part of an effort to clean up tailscaled initialization between
tailscaled, tailscaled Windows service, tsnet, and the mac GUI.

Updates #8036

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Brad Fitzpatrick 1e876a3c1d ipn/ipnlocal: fix fmt format arg type mismatch in log line 
It was printing like "v0xxxxxxxx" after version.Long became a func
in 8b2ae47c31.

Fixes #7976

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years 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>
 3 years ago
Mihai Parparita 4722f7e322 all: move network monitoring from wgengine/monitor to net/netmon 
We're using it in more and more places, and it's not really specific to
our use of Wireguard (and does more just link/interface monitoring).

Also removes the separate interface we had for it in sockstats -- it's
a small enough package (we already pull in all of its dependencies
via other paths) that it's not worth the extra complexity.

Updates #7621
Updates #7850

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
 3 years ago
Andrew Dunham f85dc6f97c
ci: add more lints (#7909) 
This is a follow-up to #7905 that adds two more linters and fixes the corresponding findings. As per the previous PR, this only flags things that are "obviously" wrong, and fixes the issues found.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I8739bdb7bc4f75666a7385a7a26d56ec13741b7c
 3 years ago
Mihai Parparita 9a655a1d58 net/dnsfallback: more explicitly pass through logf function 
Redoes the approach from #5550 and #7539 to explicitly pass in the logf
function, instead of having global state that can be overridden.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
 3 years ago
Brad Fitzpatrick 2c0bda6e2e ssh/tailssh: make Tailscale SSH work on gokrazy 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
shayne ba4e58f429
cmd/tailscale/cli: do not allow turning Funnel on while shields-up (#7770) 3 years ago
Will Norris 5a3da3cd7f ipn: add sockstat logger to stable builds 
This makes the sockstat logger available on all builds, but only enables
it by default for unstable.  For stable builds, the logger must be
explicitly enabled via C2N component logger.

Updates tailscale/corp#9230
Updates #3363

Signed-off-by: Will Norris <will@tailscale.com>
 3 years ago
Mihai Parparita e3cb8cc88d ipn/ipnlocal: automatically upload sockstats logs when the period ends 
Avoids needing a separate c2n call to get the logs uploaded.

Updates tailscale/corp#9230

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
 3 years ago
Andrew Dunham 3b39ca9017 ipn/ipnlocal: update comment in SetComponentDebugLogging 
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I8c36a62079dce77fc81b9cdfb5fe723b007218ba
 3 years ago
Maisem Ali e0d291ab8a ipn/store: add support for stores to hook into a custom dialer 
For stores like k8s secrets we need to dial out to the k8s API as though Tailscale
wasn't running. The issue currently only manifests when you try to use an exit node
while running inside a k8s cluster and are trying to use Kubernetes secrets as the
backing store.

This doesn't address cmd/containerboot, which I'll do in a follow up.

Updates #7695

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Andrew Dunham c98652c333 doctor/permissions: add new check to print process permissions 
Since users can run tailscaled in a variety of ways (root, non-root,
non-root with process capabilities on Linux), this check will print the
current process permissions to the log to aid in debugging.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ida93a206123f98271a0c664775d0baba98b330c7
 3 years ago
Will Norris 7c99210e68 log: allow toggling sockstat logs via c2n component logging 
Signed-off-by: Will Norris <will@tailscale.com>
 3 years ago
Maisem Ali 8a11f76a0d ipn/ipnlocal: fix cert storage in Kubernetes 
We were checking against the wrong directory, instead if we
have a custom store configured just use that.

Fixes #7588
Fixes #7665

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Will Norris 57a008a1e1 all: pass log IDs as the proper type rather than strings 
This change focuses on the backend log ID, which is the mostly commonly
used in the client.  Tests which don't seem to make use of the log ID
just use the zero value.

Signed-off-by: Will Norris <will@tailscale.com>
 3 years ago
Will Norris f13b8bf0cf log: use logtail to log and upload sockstat logs 
Switch to using logtail for logging sockstat logs. Always log locally
(on supported platforms), but disable automatic uploading.  Change
existing c2n sockstats request to trigger upload to log server and
return log ID.

Signed-off-by: Will Norris <will@tailscale.com>
 3 years ago
Will Norris 6ef2105a8e log/sockstatlog: only start once; don't copy ticker 
Signed-off-by: Will Norris <will@tailscale.com>
 3 years ago
Will Norris 09e0ccf4c2 ipn: add c2n endpoint for sockstats logs 
Signed-off-by: Will Norris <will@tailscale.com>
 3 years ago
Will Norris a1d9f65354 ipn,log: add logger for sockstat deltas 
Signed-off-by: Will Norris <will@tailscale.com>
Co-authored-by: Melanie Warrick <warrick@tailscale.com>
 3 years ago
Maisem Ali 1e72de6b72 ipn/ipnlocal: remove WIP restriction for Tailscale SSH on macOS 
It kinda works fine now on macOS with the recent fixes in 0582829 and
 5787989d.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Maisem Ali b797f773c7 ipn/ipnlocal: add support for funnel in tsnet 
Previously the part that handled Funnel connections was not
aware of any listeners that tsnet.Servers might have had open
so it would check against the ServeConfig and fail.

Adding a ServeConfig for a TCP proxy was also not suitable in this
scenario as that would mean creating two different listeners and have
one forward to the other, which really meant that you could not have
funnel and tailnet-only listeners on the same port.

This also introduces the ipn.FunnelConn as a way for users to identify
whether the call is coming over funnel or not. Currently it only holds
the underlying conn and the target as presented in the "Tailscale-Ingress-Target"
header.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Andrew Dunham be107f92d3 wgengine/magicsock: track per-endpoint changes in ringbuffer 
This change adds a ringbuffer to each magicsock endpoint that keeps a
fixed set of "changes"–debug information about what updates have been
made to that endpoint.

Additionally, this adds a LocalAPI endpoint and associated
"debug peer-status" CLI subcommand to fetch the set of changes for a given
IP or hostname.

Updates tailscale/corp#9364

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I34f726a71bddd0dfa36ec05ebafffb24f6e0516a
 3 years ago
Andrew Dunham df2561f6a2 ipn/ipnlocal: stop netmap expiry timer when resetting control client 
This prevents a panic where we synthesize a new netmap in
setClientStatus after we've shut down and nil'd out the controlclient,
since that function expects to be called while connected to control.

Fixes #7392

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ib631eb90f34f6afa008d69bbb386f70da145e102
 3 years ago
Andrew Dunham a9c17dbf93 ipn/ipnlocal: reject unmasked routes 
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ic804efd24f5f536de1f2c910de3a24372d48d54d
 3 years ago
Tom DNetto 88c7d19d54 tka: compact TKA storage on startup 
Signed-off-by: Tom DNetto <tom@tailscale.com>
 3 years ago
David Anderson 8b2ae47c31 version: unexport all vars, turn Short/Long into funcs 
The other formerly exported values aren't used outside the package,
so just unexport them.

Signed-off-by: David Anderson <danderson@tailscale.com>
 3 years ago
Mihai Parparita fa932fefe7 net/interfaces: redo how we get the default interface on macOS and iOS 
With #6566 we added an external mechanism for getting the default
interface, and used it on macOS and iOS (see tailscale/corp#8201).
The goal was to be able to get the default physical interface even when
using an exit node (in which case the routing table would say that the
Tailscale utun* interface is the default).

However, the external mechanism turns out to be unreliable in some
cases, e.g. when multiple cellular interfaces are present/toggled (I
have occasionally gotten my phone into a state where it reports the pdp_ip1
interface as the default, even though it can't actually route traffic).

It was observed that `ifconfig -v` on macOS reports an "effective interface"
for the Tailscale utn* interface, which seems promising. By examining
the ifconfig source code, it turns out that this is done via a
SIOCGIFDELEGATE ioctl syscall. Though this is a private API, it appears
to have been around for a long time (e.g. it's in the 10.13 xnu release
at https://opensource.apple.com/source/xnu/xnu-4570.41.2/bsd/net/if_types.h.auto.html)
and thus is unlikely to go away.

We can thus use this ioctl if the routing table says that a utun*
interface is the default, and go back to the simpler mechanism that
we had before #6566.

Updates #7184
Updates #7188

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
 3 years ago
Mihai Parparita 62f4df3257 net/interfaces, net/netns: add node attributes to control default interface getting and binding 
With #6566 we started to more aggressively bind to the default interface
on Darwin. We are seeing some reports of the wrong cellular interface
being chosen on iOS. To help with the investigation, this adds to knobs
to control the behavior changes:
- CapabilityDebugDisableAlternateDefaultRouteInterface disables the
  alternate function that we use to get the default interface on macOS
  and iOS (implemented in tailscale/corp#8201). We still log what it
  would have returned so we can see if it gets things wrong.
- CapabilityDebugDisableBindConnToInterface is a bigger hammer that
  disables binding of connections to the default interface altogether.

Updates #7184
Updates #7188

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
 3 years ago
Andrew Dunham 6d84f3409b ipn/ipnlocal: handle more edge cases in netmap expiry timer 
We now handle the case where the NetworkMap.SelfNode has already expired
and do not return an expiry time in the past (which causes an ~infinite
loop of timers to fire).

Additionally, we now add an explicit check to ensure that the next
expiry time is never before the current local-to-the-system time, to
ensure that we don't end up in a similar situation due to clock skew.

Finally, we add more tests for this logic to ensure that we don't
regress on these edge cases.

Fixes #7193

Change-Id: Iaf8e3d83be1d133a7aab7f8d62939e508cc53f9c
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
 3 years ago
Tom DNetto 99b9d7a621 all: implement pcap streaming for datapath debugging 
Updates: tailscale/corp#8470

Signed-off-by: Tom DNetto <tom@tailscale.com>
 3 years ago
David Crawshaw 8cf2805cca tailcfg, localapi: plumb device token to server 
Updates tailscale/corp#8940

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 3 years ago
Andrew Dunham 5ba2543828 ipn/ipnlocal: print warning about DNS servers in bugreport --diagnose 
If the user passes the --diagnose flag, print a warning if any of the
default or fallback DNS resolvers are Tailscale IPs. This can interfere
with the ability to connect to the controlplane, and is typically
something to pay attention to if there's a connectivity issue.

Change-Id: Ib14bf6228c037877fbdcd22b069212b1a4b2c456
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
 3 years ago
Andrew Dunham d1146dc701 ipn/ipnlocal: rate-limit diagnose logs in bugreport 
We can log too quickly for logtail to catch up, even when we opt out of
log rate-limiting. When the user passes the --diagnose flag to
bugreport, we use a token bucket to control how many logs per second are
printed and sleep until we're able to write more.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: If27672d66b621b589280bd0fe228de367ffcbd8f
 3 years ago
Maisem Ali 04b57a371e ipn/ipnlocal: drop not required StateKey parameter 
This is #cleanup now that #7121 is merged.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Mihai Parparita 4973956419 ipn/ipnlocal: add /reset-auth LocalAPI endpoint 
The iOS has a command to reset the persisted state of the app, but it
was doing its own direct keychain manipulation. This proved to be
brittle (since we changed how preferences are stored with #6022), so
we instead add a LocalAPI endpoint to do do this, which can be updated
in tandem.

This clears the same state as the iOS implementation (tailscale/corp#3186),
that is the machine key and preferences (which includes the node key).
Notably this does not clear the logtail ID, so that logs from the device
still end up in the same place.

Updates tailscale/corp#8923

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
 3 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>
 3 years ago
Andrew Dunham 2703d6916f net/netns: add functionality to bind outgoing sockets based on route table 
When turned on via environment variable (off by default), this will use
the BSD routing APIs to query what interface index a socket should be
bound to, rather than binding to the default interface in all cases.

Updates #5719
Updates #5940

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ib4c919471f377b7a08cd3413f8e8caacb29fee0b
 3 years ago
Andrew Dunham 44d73ce932 ipn/ipnlocal, net/dnscache: allow configuring dnscache logging via capability 
This allows users to temporarily enable/disable dnscache logging via a
new node capability, to aid in debugging strange connectivity issues.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I46cf2596a8ae4c1913880a78d0033f8b668edc08
 3 years ago
Brad Fitzpatrick 6e5faff51e ipn/ipnlocal: add health warning for Tailscale SSH + SELinux 
Updates #4908

Change-Id: If46be5045b13dd5c3068c334642f89b5917ec861
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Andrew Dunham 140b9aad5c ipn/ipnlocal: fire expiry timer when the current node expires 
The current node isn't in NetMap.Peers, so without this we would not
have fired this timer on self expiry.

Updates #6932

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Id57f96985397e372f9226802d63b42ff92c95093
 3 years ago
Brad Fitzpatrick 06fff461dc ipn/ipnstate: add PeerStatus.KeyExpiry for tailscale status --json 
Fixes #6712

Change-Id: I817cd5342fac8a956fcefda2d63158fa488f3395
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Brad Fitzpatrick 6edf357b96 all: start groundwork for using capver for localapi & peerapi 
Updates #7015

Change-Id: I3d4c11b42a727a62eaac3262a879f29bb4ce82dd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
salman eec734a578 ipn/{ipnlocal,localapi}: ensure watcher is installed before /watch-ipn-bus/ responds with 200 
This change delays the first flush in the /watch-ipn-bus/ handler
until after the watcher has been successfully installed on the IPN
bus. It does this by adding a new onWatchAdded callback to
LocalBackend.WatchNotifications().

Without this, the endpoint returns a 200 almost immediatly, and
only then installs a watcher for IPN events.  This means there's a
small window where events could be missed by clients after calling
WatchIPNBus().

Fixes tailscale/corp#8594.

Signed-off-by: salman <salman@tailscale.com>
 3 years ago
Andrew Dunham 3a018e51bb ipn/ipnlocal: move handling of expired nodes to LocalBackend 
In order to be able to synthesize a new NetMap when a node expires, have
LocalBackend start a timer when receiving a new NetMap that fires
slightly after the next node expires. Additionally, move the logic that
updates expired nodes into LocalBackend so it runs on every netmap
(whether received from controlclient or self-triggered).

Updates #6932

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I833390e16ad188983eac29eb34cc7574f555f2f3
 3 years ago
Mihai Parparita 67f82e62a1 ipn/ipnlocal: add Expired to PeerStatus 
Needed for clients that get information via the /v0/status LocalAPI
endpoint (e.g. to not offer expired exit nodes as options).

Updates tailscale/corp#8702

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
 3 years ago
Andrew Dunham 11ce5b7e57 ipn/ipnlocal, wgengine/magicsock: check Expired bool on Node; print error in Ping 
Change-Id: Ic5f533f175a6e1bb73d4957d8c3f970add42e82e
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
 3 years ago
Brad Fitzpatrick 61dfbc0a6e cmd/tailscale/cli: plumb TUN mode into tailscale web template 
UI works remains, but data is there now.

Updates #4015

Change-Id: Ib91e94718b655ad60a63596e59468f3b3b102306
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Brad Fitzpatrick 1116602d4c ssh/tailssh: add OpenBSD support for Tailscale SSH 
And bump go.mod for https://github.com/u-root/u-root/pull/2593

Change-Id: I36ec94c5b2b76d671cb739f1e9a1a43ca1d9d1b1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Brad Fitzpatrick 69c0b7e712 ipn/ipnlocal: add c2n handler to flush logtail for support debugging 
Updates tailscale/corp#8564

Change-Id: I0c619d4007069f90cffd319fba66bd034d63e84d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
David Anderson 91e64ca74f cmd/tailscale/cli: redact private key in debug netmap output by default 
This makes `tailscale debug watch-ipn` safe to use for troubleshooting
user issues, in addition to local debugging during development.

Signed-off-by: David Anderson <danderson@tailscale.com>
 3 years ago
Anton Tolchanov 82b9689e25
ipn/ipnlocal: maintain a proxy handler per backend (#6804) 
By default, `http.Transport` keeps idle connections open hoping to re-use them in the future. Combined with a separate transport per request in HTTP proxy this results in idle connection leak.

Fixes #6773
 3 years ago
Brad Fitzpatrick 0f604923d3 ipn/ipnlocal: fix StatusWithoutPeers not populating parts of Status 
Fixes #4311

Change-Id: Iaae0615148fa7154f4ef8f66b455e3a6c2fa9df3
Co-authored-by: Claire Wang <claire@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
salman 2d271f3bd1 ipn/ipnlocal: disallow exit nodes from using exit nodes 
Nodes which have both -advertise-exit-node and -exit-node in prefs
should continue have them until the next invocation of `tailscale up`.

Updates #3569.

Signed-off-by: salman <salman@tailscale.com>
 3 years ago
Brad Fitzpatrick 1598cd0361 net/tsaddr: remove ContainsFunc helpers (they're now in x/exp/slices) 
x/exp/slices now has ContainsFunc (golang/go#53983) so we can delete
our versions.

Change-Id: I5157a403bfc1b30e243bf31c8b611da25e995078
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Tom DNetto 9c773af04c ipn/ipnlocal: fix use of stale profile while processing netmap 
Signed-off-by: Tom DNetto <tom@tailscale.com>
 3 years ago
Maisem Ali 86b6ff61e6 ipn/ipnlocal: fix Prefs access without mu being held 
Noticed while working on a different fix.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Maisem Ali cdb924f87b ipn/ipnlocal: sanitize prefs in more notify code paths 
Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Brad Fitzpatrick 57124e2126 ipn/localapi: add debug (root-required) access to inject debug Notify 
For testing of Windows GUI client.

Updates #6480

Change-Id: I42f7526d95723e14bed7085fb759e371b43aa9da
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Brad Fitzpatrick e1d7d072a3 ipn/ipnlocal: set Notify.Version on initial Notifies 
Missed when added recently in 8dd1418774

Change-Id: Id682640a54c3717afe084edaf69258ad23031b6c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Brad Fitzpatrick 8dd1418774 ipn{,/ipnlocal}: add ipn.NotifyInitial* flags to WatchIPNBus 
To simplify clients getting the initial state when they subscribe.

Change-Id: I2490a5ab2411253717c74265a46a98012b80db82
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Brad Fitzpatrick a277eb4dcf ipn/ipnlocal: add missing context cancel 
If user's fn returned false and never canceled their ctx, we never
stopped the NotifyWatchEngineUpdates goroutine.

This was introduced recently (this cycle).

Change-Id: I3453966ac71e00727296ddd237ef845782f4e52e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Tom DNetto f1ab11e961 ipn/ipnlocal,tailcfg: introduce capability to gate TKA init paths 
Previously, `TAILSCALE_USE_WIP_CODE` was needed to hit a bunch of the TKA paths. With
this change:

 - Enablement codepaths (NetworkLockInit) and initialization codepaths (tkaBootstrapFromGenesisLocked via tkaSyncIfNeeded)
   require either the WIP envknob or CapabilityTailnetLockAlpha.
 - Normal operation codepaths (tkaSyncIfNeeded, tkaFilterNetmapLocked) require TKA to be initialized, or either-or the
   envknob / capability.
 - Auxillary commands (ie: changing tka keys) require TKA to be initialized.

The end result is that it shouldn't be possible to initialize TKA (or subsequently use any of its features) without being
sent the capability or setting the envknob on tailscaled yourself.

I've also pulled out a bunch of unnecessary checks for CanSupportNetworkLock().

Signed-off-by: Tom DNetto <tom@tailscale.com>
 3 years ago
Tom DNetto c4980f33f7 ipn,types/persist: add DisallowedTKAStateIDs, refactor as view type 
Supercedes https://github.com/tailscale/tailscale/pull/6557, precursor to trying https://github.com/tailscale/tailscale/pull/6546 again

Signed-off-by: Tom DNetto <tom@tailscale.com>
 3 years ago
Brad Fitzpatrick 6d012547b6 ipn/ipnlocal: use double dash flag style 
The Go style weirds people out so we try to stick to the more
well-known double hyphen style in docs.

Change-Id: Iad6db5c82cda37f6b7687eed7ecd9276f8fd94d6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago
Aaron Klotz 659e7837c6 health, ipn/ipnlocal: when -no-logs-no-support is enabled, deny access to tailnets that have network logging enabled 
We want users to have the freedom to start tailscaled with `-no-logs-no-support`,
but that is obviously in direct conflict with tailnets that have network logging
enabled.

When we detect that condition, we record the issue in health, notify the client,
set WantRunning=false, and bail.

We clear the item in health when a profile switch occurs, since it is a
per-tailnet condition that should not propagate across profiles.

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
 3 years ago
Maisem Ali ad41cbd9d5 ipn/ipnlocal: sanitize prefs before sending over IPN Bus 
Signed-off-by: Maisem Ali <maisem@tailscale.com>
 3 years ago
Brad Fitzpatrick ea25ef8236 util/set: add new set package for SetHandle type 
We use this pattern in a number of places (in this repo and elsewhere)
and I was about to add a fourth to this repo which was crossing the line.
Add this type instead so they're all the same.

Also, we have another Set type (SliceSet, which tracks its keys in
order) in another repo we can move to this package later.

Change-Id: Ibbdcdba5443fae9b6956f63990bdb9e9443cefa9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 3 years ago