yggdrasil-network/yggdrasil-go
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IPv4 CKR support in router

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This commit is contained in:
Neil Alexander 2018-11-06 20:49:19 +00:00
parent 424faa1c51
commit 0240375417
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GPG key ID: A02A2019A2BB0944
3 changed files with 62 additions and 24 deletions
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34
src/yggdrasil/ckr.go
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@ -46,22 +46,36 @@ func (c *cryptokey) isEnabled() bool {
return c.enabled
}
func (c *cryptokey) isValidSource(addr address) bool {
ip := net.IP(addr[:])
func (c *cryptokey) isValidSource(addr address, addrlen int) bool {
ip := net.IP(addr[:addrlen])
// Does this match our node's address?
if bytes.Equal(addr[:16], c.core.router.addr[:16]) {
return true
}
if addrlen == net.IPv6len {
// Does this match our node's address?
if bytes.Equal(addr[:16], c.core.router.addr[:16]) {
return true
}
// Does this match our node's subnet?
if bytes.Equal(addr[:8], c.core.router.subnet[:8]) {
return true
// Does this match our node's subnet?
if bytes.Equal(addr[:8], c.core.router.subnet[:8]) {
return true
}
}
// Does it match a configured CKR source?
if c.isEnabled() {
for _, subnet := range c.ipv6sources {
// Build our references to the routing sources
var routingsources *[]net.IPNet
// Check if the prefix is IPv4 or IPv6
if addrlen == net.IPv6len {
routingsources = &c.ipv6sources
} else if addrlen == net.IPv4len {
routingsources = &c.ipv4sources
} else {
return false
}
for _, subnet := range *routingsources {
if subnet.Contains(ip) {
return true
}