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tailscale/net/dns
David Anderson cfde997699 net/dns: don't use interfaces.Tailscale to find the tailscale interface index.
interfaces.Tailscale only returns an interface if it has at least one Tailscale
IP assigned to it. In the resolved DNS manager, when we're called upon to tear
down DNS config, the interface no longer has IPs.

Instead, look up the interface index on construction and reuse it throughout
the daemon lifecycle.

Fixes #1892.

Signed-off-by: David Anderson <dave@natulte.net>
3 years ago
..
resolver net/dns/resolver: remove unnecessary/racy WaitGroup. 3 years ago
config.go util/dnsname: add FQDN type, use throughout codebase. 3 years ago
debian_resolvconf.go net/dns: add GOOS build tags 3 years ago
direct.go net/dns: add GOOS build tags 3 years ago
flush_windows.go Move DNS flush logic to net/dns. 3 years ago
manager.go net/dns: work around WSL DNS implementation flaws. 3 years ago
manager_default.go net/dns: return error from NewOSManager, use it to initialize NM. 3 years ago
manager_freebsd.go net/dns: fix freebsd DNS manager selection. 3 years ago
manager_linux.go net/dns: don't use interfaces.Tailscale to find the tailscale interface index. 3 years ago
manager_openbsd.go net/dns: return error from NewOSManager, use it to initialize NM. 3 years ago
manager_test.go net/dns: work around WSL DNS implementation flaws. 3 years ago
manager_windows.go net/dns: on windows, skip site-local v6 resolvers. 3 years ago
nm.go Revert "net/dns: set IPv4 auto mode in NM, so it lets us set DNS." 3 years ago
noop.go net/dns: return error from NewOSManager, use it to initialize NM. 3 years ago
openresolv.go net/dns: add GOOS build tags 3 years ago
osconfig.go net/dns: make debian_resolvconf correctly clear DNS configs. 3 years ago
registry_windows.go wgengine/router/dns: move to net/dns. 3 years ago
resolvconf-workaround.sh net/dns: also include 'tail' and 'base' files when fixing up resolv.conf. 3 years ago
resolvconf.go net/dns: add GOOS build tags 3 years ago
resolved.go net/dns: don't use interfaces.Tailscale to find the tailscale interface index. 3 years ago