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tailscale/net
Andrea Gottardo dd77111462
xcode/iOS: set MatchDomains when no route requires a custom DNS resolver (#10576)
Updates https://github.com/tailscale/corp/issues/15802.

On iOS exclusively, this PR adds logic to use a split DNS configuration in more cases, with the goal of improving battery life. Acting as the global DNS resolver on iOS should be avoided, as it leads to frequent wakes of IPNExtension.

We try to determine if we can have Tailscale only handle DNS queries for resources inside the tailnet, that is, all routes in the DNS configuration do not require a custom resolver (this is the case for app connectors, for instance).

If so, we set all Routes as MatchDomains. This enables a split DNS configuration which will help preserve battery life. Effectively, for the average Tailscale user who only relies on MagicDNS to resolve *.ts.net domains, this means that Tailscale DNS will only be used for those domains.

This PR doesn't affect users with Override Local DNS enabled. For these users, there should be no difference and Tailscale will continue acting as a global DNS resolver.

Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
6 months ago
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art
connstats
dns xcode/iOS: set MatchDomains when no route requires a custom DNS resolver (#10576) 6 months ago
dnscache net/netns, net/dns/resolver, etc: make netmon required in most places 7 months ago
dnsfallback tsd, ipnlocal, etc: add tsd.System.HealthTracker, start some plumbing 7 months ago
flowtrack
ktimeout
memnet
netaddr all: update copyright and license headers 2 years ago
netcheck net/netcheck: apply some polish suggested from #12161 6 months ago
neterror
netkernelconf
netknob
netmon net/netmon: remove spammy log statements (#11953) 7 months ago
netns net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon 7 months ago
netstat
netutil net/netmon, add: add netmon.State type alias of interfaces.State 7 months ago
packet all: use Go 1.22 range-over-int 7 months ago
ping
portmapper net/portmapper: add envknob to disable portmapper in localhost integration tests 7 months ago
proxymux
routetable net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon 7 months ago
socks5
sockstats net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon 7 months ago
speedtest
stun all: make more tests pass/skip in airplane mode 7 months ago
stunserver
tcpinfo
tlsdial tsd, ipnlocal, etc: add tsd.System.HealthTracker, start some plumbing 7 months ago
tsaddr types/views: remove duplicate SliceContainsFunc 7 months ago
tsdial ipn/ipnlocal, net/tsdial: plumb routes into tsdial and use them in UserDial 7 months ago
tshttpproxy
tstun net/tstun: do SNAT after filterPacketOutboundToWireGuard 7 months ago
wsconn