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ctrld/cmd/cli
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Dev Scribe 8013bb72d2 dns intercept: handle DNS-less networks and canceled-recovery state leak 
macOS intercept mode fails totally on networks that provide no usable
IPv4 DNS (e.g. IPv6-only iPhone tethering with 464XLAT): the pf ruleset
blocks all outbound IPv6 port 53, and with no IPv4 DNS configured
mDNSResponder emits no DNS packets at all, so pf has nothing to
intercept while the Control D upstream stays provably healthy.

When network-change recovery discovers no usable IPv4 DNS on the
default-route service, set 127.0.0.1 as that service DNS so macOS can
emit queries that land directly on the listener. The entry is removed
when the network regains IPv4 DNS and on intercept shutdown; networks
that provide IPv4 DNS are never modified. Runs on the already-debounced
recovery path so interface flaps do not churn networksetup.

Also fix the canceled-recovery state leak: the cancellation early
return never reset recoveryBypass/recoveryRunning, so a flap burst
ending in a canceled recovery left the daemon in bypass forever with
the DNS watchdog disabled. Cleanup is generation-gated so a superseded
recovery never clears state owned by its successor.
2026-09-01 11:08:13 +07:00
..
winres
all: include file information in Windows builds
2024-02-07 14:40:18 +07:00
ad_others.go
all: use local resolver for ADDC
2025-01-24 14:54:20 +07:00
ad_windows_test.go
Including system metadata when posting to utility API
2025-12-18 17:10:39 +07:00
ad_windows.go
Including system metadata when posting to utility API
2025-12-18 17:10:39 +07:00
cgo.go
cmd/cli: support nocgo version for upgrade command
2025-02-18 20:25:13 +07:00
cli_intercept_listener_test.go
cmd/cli: preserve fallback listener port across reload in DNS intercept
2026-07-28 16:11:37 +07:00
cli_preflight_test.go
cmd/cli: bound API preflight by service lifetime
2026-08-21 14:49:30 +07:00
cli_provision_test.go
feat(cli): add stable provisioning failure codes for manual and MDM installs
2026-08-21 14:52:02 +07:00
cli_test.go
cmd/cli: write new config file on reload
2024-08-07 15:51:11 +07:00
cli.go
pkg: port managed DNS mode review fixes
2026-09-01 11:03:13 +07:00
commands_start_test.go
feat(cli): add stable provisioning failure codes for manual and MDM installs
2026-08-21 14:52:02 +07:00
commands.go
pkg: port managed DNS mode review fixes
2026-09-01 11:03:13 +07:00
conn.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
control_client.go
Add log tail command for live log streaming
2026-03-25 13:58:44 +07:00
control_server_test.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
control_server.go
cmd/cli: bound API preflight by service lifetime
2026-08-21 14:49:30 +07:00
dns_intercept_darwin_test.go
fix(darwin): probe interception when stabilization finishes
2026-08-21 14:47:58 +07:00
dns_intercept_darwin.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
dns_intercept_ignored_change_windows_test.go
fix: validate pf state before stabilization
2026-08-21 14:45:56 +07:00
dns_intercept_lifecycle_windows_test.go
windows: adopt GP-managed NRPT catch-all
2026-08-21 14:46:44 +07:00
dns_intercept_others.go
windows: adopt GP-managed NRPT catch-all
2026-08-21 14:46:44 +07:00
dns_intercept_settle_test.go
fix: validate pf state before stabilization
2026-08-21 14:45:56 +07:00
dns_intercept_settle.go
fix: validate pf state before stabilization
2026-08-21 14:45:56 +07:00
dns_intercept_windows.go
windows: adopt GP-managed NRPT catch-all
2026-08-21 14:46:44 +07:00
dns_proxy_test.go
cmd/cli: discard upstream answers whose question mismatches the request
2026-07-28 16:12:47 +07:00
dns_proxy.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
dns_target_darwin_test.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
dns_target_darwin.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
dns_target_filter_test.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
dns_target_stub.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
dns_target_test.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
dns_target.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
dns.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
hostname_test.go
all: add custom hostname support for provisoning
2024-10-24 13:05:48 +07:00
hostname.go
all: add custom hostname support for provisoning
2024-10-24 13:05:48 +07:00
intercept_mode_config_test.go
pkg: port managed DNS mode review fixes
2026-09-01 11:03:13 +07:00
intercept_probe.go
windows: adopt GP-managed NRPT catch-all
2026-08-21 14:46:44 +07:00
library_retry_test.go
all: keep the first-attempt error when the direct-ip fallback also fails
2026-08-21 14:49:58 +07:00
library.go
all: keep the first-attempt error when the direct-ip fallback also fails
2026-08-21 14:49:58 +07:00
listener_intercept_mode_test.go
fix(cli): treat explicit intercept-mode off as final in listener setup
2026-08-22 01:34:48 +07:00
log_tail_test.go
Add log tail command for live log streaming
2026-03-25 13:58:44 +07:00
log_writer_silent_test.go
fix: skip internal logging in silent mode
2026-07-28 16:13:19 +07:00
log_writer_test.go
log: persist internal runtime logs to disk
2026-04-29 15:12:44 +07:00
log_writer.go
fix: skip internal logging in silent mode
2026-07-28 16:13:19 +07:00
loop_test.go
cmd/cli: improving loop guard test
2023-12-13 14:53:29 +07:00
loop.go
cmd/cli: do not check DNS loop for upstream which is being down
2024-05-24 18:21:07 +07:00
main_test.go
Apply managed DNS mode in the macOS package
2026-08-21 15:12:32 +07:00
main.go
pkg: port managed DNS mode review fixes
2026-09-01 11:03:13 +07:00
metrics.go
security: default metrics server to loopback
2026-08-21 14:48:20 +07:00
net_darwin.go
remove leaking timeout, fix blocking upstreams checks, leaking is per listener, OS resolvers are tested in parallel, reset is only done is os is down
2025-01-20 15:03:27 +07:00
net_linux.go
cmd/cli: implement valid interfaces map for all systems
2025-02-10 18:45:17 +07:00
net_others.go
cmd/cli: implement valid interfaces map for all systems
2025-02-10 18:45:17 +07:00
net_windows_test.go
cmd/cli: get physical interfaces using Windows WMI
2024-12-19 21:34:26 +07:00
net_windows.go
fix upgrade flow
2025-01-31 20:04:03 +07:00
network_manager_linux.go
cmd/cli: use better approach for detecting NetworkManager
2023-09-22 18:42:21 +07:00
network_manager_others.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
nextdns.go
cmd/cli: fix wrong generated config for nextdns resolver
2023-11-16 20:55:39 +07:00
nocgo.go
cmd/cli: support nocgo version for upgrade command
2025-02-18 20:25:13 +07:00
nrpt_external_gp_test.go
windows: adopt GP-managed NRPT catch-all
2026-08-21 14:46:44 +07:00
nrpt_external_gp_windows_test.go
windows: adopt GP-managed NRPT catch-all
2026-08-21 14:46:44 +07:00
nrpt_external_gp.go
windows: adopt GP-managed NRPT catch-all
2026-08-21 14:46:44 +07:00
nrpt_handback_windows_test.go
windows: adopt GP-managed NRPT catch-all
2026-08-21 14:46:44 +07:00
nrpt_recovery_limiter_windows_test.go
Add Windows NRPT recovery circuit breaker
2026-07-14 01:12:37 +07:00
nrpt_recovery_limiter_windows.go
Add Windows NRPT recovery circuit breaker
2026-07-14 01:12:37 +07:00
os_darwin.go
all: preserve search domains settings
2025-05-15 17:00:59 +07:00
os_freebsd.go
all: preserve search domains settings
2025-05-15 17:00:59 +07:00
os_linux_test.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
os_linux.go
Fix: Filter root domain from search domains on Linux
2025-11-12 15:14:40 +07:00
os_others.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
os_windows_test.go
cmd/cli: get static DNS using syscall
2024-12-19 21:34:37 +07:00
os_windows.go
feat: add Windows NRPT and WFP DNS interception
2026-03-03 14:29:09 +07:00
pf_ruleset_test.go
fix: validate pf state before stabilization
2026-08-21 14:45:56 +07:00
pf_ruleset.go
fix: validate pf state before stabilization
2026-08-21 14:45:56 +07:00
prog_darwin.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
prog_freebsd.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
prog_intercept_fallback_test.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
prog_linux_test.go
cmd/cli: fix systemd-networkd-wait-online blocks ctrld starts
2024-05-09 18:39:30 +07:00
prog_linux.go
Add mobile sandbox optimizations for v1.5.3
2026-08-05 00:39:42 +07:00
prog_others.go
cmd/cli: add DNS as ctrld service dependency
2025-02-26 00:44:13 +07:00
prog_test.go
fix: back off unroutable IPv6 DoH upstream health-check spam
2026-07-14 01:12:34 +07:00
prog_windows.go
cmd/cli: add DNS as ctrld service dependency
2025-02-26 00:44:13 +07:00
prog.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
prometheus.go
cmd/cli: write new config file on reload
2024-08-07 15:51:11 +07:00
provision_result_test.go
feat(cli): add stable provisioning failure codes for manual and MDM installs
2026-08-21 14:52:02 +07:00
provision_result.go
feat(cli): add stable provisioning failure codes for manual and MDM installs
2026-08-21 14:52:02 +07:00
recovery_state_test.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
recovery_state.go
dns intercept: handle DNS-less networks and canceled-recovery state leak
2026-09-01 11:08:13 +07:00
reload_others.go
all: implement reload command
2023-11-06 20:01:03 +07:00
reload_windows.go
all: implement reload command
2023-11-06 20:01:03 +07:00
resolvconf_darwin.go
cmd/cli: fix issue with editing /etc/resolv.conf directly on Darwin
2024-08-07 15:54:20 +07:00
resolvconf_not_darwin_unix.go
cmd/cli: preserve search domains when reverting resolv.conf
2025-06-04 18:36:51 +07:00
resolvconf_windows.go
cmd/cli: watch resolv.conf on all unix platforms
2024-02-22 18:15:36 +07:00
resolvconf.go
remove leaking logic in favor of recovery logic.
2025-02-10 18:55:36 +07:00
search_domains_unix.go
all: preserve search domains settings
2025-05-15 17:00:59 +07:00
search_domains_windows.go
all: preserve search domains settings
2025-05-15 17:00:59 +07:00
self_delete_others.go
cmd/cli: make --cleanup removing more files
2024-08-07 15:51:11 +07:00
self_delete_windows.go
cmd/cli: make --cleanup removing more files
2024-08-07 15:51:11 +07:00
self_kill_others.go
cmd/cli: ensure DNS goroutines terminated before self-uninstall
2024-08-16 13:50:11 +07:00
self_kill_unix.go
cmd/cli: handle stop signal from service manager
2025-03-26 23:18:36 +07:00
self_upgrade_others.go
cmd/cli: handle stop signal from service manager
2025-03-26 23:18:36 +07:00
self_upgrade_windows.go
cmd/cli: handle stop signal from service manager
2025-03-26 23:18:36 +07:00
sema.go
cmd: allow import/running ctrld as library
2023-08-15 18:22:38 +07:00
service_args_darwin_test.go
pkg: port managed DNS mode review fixes
2026-09-01 11:03:13 +07:00
service_args_darwin.go
Apply managed DNS mode in the macOS package
2026-08-21 15:12:32 +07:00
service_args_others.go
Apply managed DNS mode in the macOS package
2026-08-21 15:12:32 +07:00
service_args_windows_test.go
Apply managed DNS mode in the macOS package
2026-08-21 15:12:32 +07:00
service_args_windows.go
pkg: port managed DNS mode review fixes
2026-09-01 11:03:13 +07:00
service_image_path_others.go
cmd/cli: report whether ctrld finished starting up, not just what SCM thinks
2026-08-21 14:50:27 +07:00
service_image_path_test.go
cmd/cli: report whether ctrld finished starting up, not just what SCM thinks
2026-08-21 14:50:27 +07:00
service_image_path_windows.go
cmd/cli: report whether ctrld finished starting up, not just what SCM thinks
2026-08-21 14:50:27 +07:00
service_image_path.go
cmd/cli: report whether ctrld finished starting up, not just what SCM thinks
2026-08-21 14:50:27 +07:00
service_others.go
Resolve "OS upstream failure / wrong default route"
2025-02-24 18:36:08 +07:00
service_status_test.go
cmd/cli: report whether ctrld finished starting up, not just what SCM thinks
2026-08-21 14:50:27 +07:00
service_status.go
cmd/cli: report whether ctrld finished starting up, not just what SCM thinks
2026-08-21 14:50:27 +07:00
service_test.go
feat(cli): add stable provisioning failure codes for manual and MDM installs
2026-08-21 14:52:02 +07:00
service_windows_test.go
cmd/cli: check local DNS using Windows API
2024-12-19 21:34:21 +07:00
service_windows.go
fix: close handle leak in hasLocalDnsServerRunning()
2026-03-25 13:58:24 +07:00
service.go
pkg: port managed DNS mode review fixes
2026-09-01 11:03:13 +07:00
uninstall_invalid_test.go
fix: restore DNS during invalid-device uninstall
2026-07-28 16:12:36 +07:00
upgrade_rollback_test.go
cmd/cli: stop the replacement before rolling its binary back
2026-08-21 14:50:11 +07:00
upgrade_rollback.go
cmd/cli: stop the replacement before rolling its binary back
2026-08-21 14:50:11 +07:00
upstream_monitor.go
fix: back off unroutable IPv6 DoH upstream health-check spam
2026-07-14 01:12:34 +07:00
vpn_dns_test.go
fix: validate pf state before stabilization
2026-08-21 14:45:56 +07:00
vpn_dns.go
fix: validate pf state before stabilization
2026-08-21 14:45:56 +07:00
winres_windows.go
all: include file information in Windows builds
2024-02-07 14:40:18 +07:00