xsteadfastx/dsnet
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

implement getULA

Browse Source
This commit is contained in:
Callan Bryant 2020-10-25 08:05:56 +00:00
parent 330b986aa4
commit cb44ff1472
No known key found for this signature in database
GPG Key ID: C31FA9DF3ACBFFAA
1 changed files with 18 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
init.go
View File

@ -21,7 +21,8 @@ func Init() {
conf := DsnetConfig{
PrivateKey: GenerateJSONPrivateKey(),
ListenPort: DEFAULT_LISTEN_PORT,
Network: getRandomNetwork(),
Network: getPrivateNet(),
Network6: getULA(),
Peers: []PeerConfig{},
Domain: "dsnet",
ReportFile: DEFAULT_REPORT_FILE,
@ -40,8 +41,8 @@ func Init() {
fmt.Printf("Config written to %s. Please check/edit.", CONFIG_FILE)
}
// get a random /22 subnet on 10.0.0.0 (1023 hosts) (or /24?)
func getRandomNetwork() JSONIPNet {
// get a random IPv4 /22 subnet on 10.0.0.0 (1023 hosts) (or /24?)
func getPrivateNet() JSONIPNet {
rbs := make([]byte, 2)
rand.Seed(time.Now().UTC().UnixNano())
rand.Read(rbs)
@ -54,6 +55,20 @@ func getRandomNetwork() JSONIPNet {
}
}
func getULA() JSONIPNet {
rbs := make([]byte, 5)
rand.Seed(time.Now().UTC().UnixNano())
rand.Read(rbs)
// fc00 prefix with 40 bit global id and zero (16 bit) subnet ID
return JSONIPNet{
IPNet: net.IPNet{
net.IP{0xfc, 0, rbs[0], rbs[1], rbs[2], rbs[3], rbs[4], 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
net.IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
},
}
}
// TODO support IPv6
func getExternalIP() net.IP {
conn, err := net.Dial("udp", "8.8.8.8:80")