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NetServer: Prevent duplicate v6 link local addresses

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* Check to ensure the address doesn't already exist on card
* In the future we will want to check interface address flags
  for any local scoped addresses on a card.
This commit is contained in:
Alexander von Gluck IV 2012-02-07 18:14:21 -06:00
parent dd7f08b519
commit 8b371b91e4
1 changed files with 11 additions and 0 deletions
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11
src/servers/net/NetServer.cpp
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@ -911,6 +911,17 @@ NetServer::_ConfigureIPv6LinkLocal(const char* name)
BNetworkAddress localLinkMask("ffff:ffff:ffff:ffff::"); // 64
BNetworkAddress localLinkBroadcast("fe80::ffff:ffff:ffff:ffff");
if (interface.FindAddress(localLinkAddress) >= 0) {
// uhoh... already has a local link address
/* TODO: Check for any local link scope addresses assigned to card
There isn't any flag at the moment though for address scope
*/
syslog(LOG_DEBUG, "%s: Local Link address already assigned to %s\n",
__func__, name);
return;
}
BNetworkInterfaceAddress interfaceAddress;
interfaceAddress.SetAddress(localLinkAddress);
interfaceAddress.SetMask(localLinkMask);