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internal/clientinfo: read mdns data from avahi-daemon cache

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When avahi-daemon is avaibale, reading data from its cache help ctrld
populate the mdns data with already known services within local network,
allowing discover client info more quickly.
This commit is contained in:
Cuong Manh Le
2024-01-22 23:10:47 +07:00
committed by Cuong Manh Le
parent 9c1665a759
commit af38623590
2 changed files with 71 additions and 0 deletions
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internal/clientinfo/mdns_test.go
+27
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@@ -0,0 +1,27 @@
package clientinfo
import (
"strings"
"testing"
)
func Test_mdns_storeDataFromAvahiBrowseOutput(t *testing.T) {
const content = `+;wlp0s20f3;IPv6;Foo\032\0402\041;_companion-link._tcp;local
+;wlp0s20f3;IPv4;Foo\032\0402\041;_companion-link._tcp;local
=;wlp0s20f3;IPv6;Foo\032\0402\041;_companion-link._tcp;local;Foo-2.local;192.168.1.123;64842;"rpBA=00:00:00:00:00:01" "rpHI=e6ae2cbbca0e" "rpAD=36566f4d850f" "rpVr=510.71.1" "rpHA=0ddc20fdddc8" "rpFl=0x30000" "rpHN=1d4a03afdefa" "rpMac=0"
=;wlp0s20f3;IPv4;Foo\032\0402\041;_companion-link._tcp;local;Foo-2.local;192.168.1.123;64842;"rpBA=00:00:00:00:00:01" "rpHI=e6ae2cbbca0e" "rpAD=36566f4d850f" "rpVr=510.71.1" "rpHA=0ddc20fdddc8" "rpFl=0x30000" "rpHN=1d4a03afdefa" "rpMac=0"
`
m := &mdns{}
m.storeDataFromAvahiBrowseOutput(strings.NewReader(content))
ip := "192.168.1.123"
val, loaded := m.name.LoadOrStore(ip, "")
if !loaded {
t.Fatal("missing Foo-2 data from mdns table")
}
wantHostname := "Foo-2"
hostname := val.(string)
if hostname != wantHostname {
t.Fatalf("unexpected hostname, want: %q, got: %q", wantHostname, hostname)
}
}