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net/dns: always offer MagicDNS records at 100.100.100.100.

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Fixes #1886.

Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
David Anderson
2021-05-17 15:18:25 -07:00
committed by Dave Anderson
parent dd0b690e7b
commit 6690f86ef4
4 changed files with 110 additions and 125 deletions
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24
net/dns/manager_test.go
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@@ -76,6 +76,22 @@ func TestManager(t *testing.T) {
SearchDomains: fqdns("tailscale.com", "universe.tf"),
},
},
{
// Regression test for https://github.com/tailscale/tailscale/issues/1886
name: "hosts-only",
in: Config{
Hosts: hosts(
"dave.ts.com.", "1.2.3.4",
"bradfitz.ts.com.", "2.3.4.5"),
AuthoritativeSuffixes: fqdns("ts.com"),
},
rs: resolver.Config{
Hosts: hosts(
"dave.ts.com.", "1.2.3.4",
"bradfitz.ts.com.", "2.3.4.5"),
LocalDomains: fqdns("ts.com"),
},
},
{
name: "corp",
in: Config{
@@ -104,6 +120,7 @@ func TestManager(t *testing.T) {
in: Config{
DefaultResolvers: mustIPPs("1.1.1.1:53", "9.9.9.9:53"),
SearchDomains: fqdns("tailscale.com", "universe.tf"),
Routes: upstreams("ts.com", "100.100.100.100:53"),
Hosts: hosts(
"dave.ts.com.", "1.2.3.4",
"bradfitz.ts.com.", "2.3.4.5"),
@@ -126,6 +143,7 @@ func TestManager(t *testing.T) {
in: Config{
DefaultResolvers: mustIPPs("1.1.1.1:53", "9.9.9.9:53"),
SearchDomains: fqdns("tailscale.com", "universe.tf"),
Routes: upstreams("ts.com", "100.100.100.100:53"),
Hosts: hosts(
"dave.ts.com.", "1.2.3.4",
"bradfitz.ts.com.", "2.3.4.5"),
@@ -261,6 +279,7 @@ func TestManager(t *testing.T) {
Hosts: hosts(
"dave.ts.com.", "1.2.3.4",
"bradfitz.ts.com.", "2.3.4.5"),
Routes: upstreams("ts.com", "100.100.100.100:53"),
AuthoritativeSuffixes: fqdns("ts.com"),
SearchDomains: fqdns("tailscale.com", "universe.tf"),
},
@@ -286,6 +305,7 @@ func TestManager(t *testing.T) {
Hosts: hosts(
"dave.ts.com.", "1.2.3.4",
"bradfitz.ts.com.", "2.3.4.5"),
Routes: upstreams("ts.com", "100.100.100.100:53"),
AuthoritativeSuffixes: fqdns("ts.com"),
SearchDomains: fqdns("tailscale.com", "universe.tf"),
},
@@ -333,7 +353,9 @@ func TestManager(t *testing.T) {
{
name: "routes-magic-split",
in: Config{
Routes: upstreams("corp.com", "2.2.2.2:53"),
Routes: upstreams(
"corp.com", "2.2.2.2:53",
"ts.com", "100.100.100.100:53"),
Hosts: hosts(
"dave.ts.com.", "1.2.3.4",
"bradfitz.ts.com.", "2.3.4.5"),