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IPC: use hostname as client identifier, if available

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This allows a DHCP server to use the client ID as unique identifier, in order to correctly assign a static lease.

Previously this wasn't possible, as the client identifier was set to its MAC address, which is randomly generated.
This commit is contained in:
Davide Beatrici 2018-04-04 07:48:59 +02:00
parent 1e8cf1dc5d
commit ba75a32a9f
1 changed files with 8 additions and 6 deletions
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14
src/Cedar/IPsec_IPC.c
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@ -1235,7 +1235,6 @@ BUF *IPCBuildDhcpRequestOptions(IPC *ipc, DHCP_OPTION_LIST *opt)
{ {
LIST *o; LIST *o;
UCHAR opcode; UCHAR opcode;
UCHAR client_id[7];
BUF *ret; BUF *ret;
// Validate arguments // Validate arguments
if (ipc == NULL || opt == NULL) if (ipc == NULL || opt == NULL)
@ -1255,11 +1254,6 @@ BUF *IPCBuildDhcpRequestOptions(IPC *ipc, DHCP_OPTION_LIST *opt)
Add(o, NewDhcpOption(DHCP_ID_SERVER_ADDRESS, &opt->ServerAddress, 4)); Add(o, NewDhcpOption(DHCP_ID_SERVER_ADDRESS, &opt->ServerAddress, 4));
} }
// Client MAC Address
client_id[0] = ARP_HARDWARE_TYPE_ETHERNET;
Copy(client_id + 1, ipc->MacAddress, 6);
Add(o, NewDhcpOption(DHCP_ID_CLIENT_ID, client_id, sizeof(client_id)));
// Requested IP Address // Requested IP Address
if (opt->RequestedIp != 0) if (opt->RequestedIp != 0)
{ {
@ -1270,6 +1264,14 @@ BUF *IPCBuildDhcpRequestOptions(IPC *ipc, DHCP_OPTION_LIST *opt)
if (IsEmptyStr(opt->Hostname) == false) if (IsEmptyStr(opt->Hostname) == false)
{ {
Add(o, NewDhcpOption(DHCP_ID_HOST_NAME, opt->Hostname, StrLen(opt->Hostname))); Add(o, NewDhcpOption(DHCP_ID_HOST_NAME, opt->Hostname, StrLen(opt->Hostname)));
Add(o, NewDhcpOption(DHCP_ID_CLIENT_ID, opt->Hostname, StrLen(opt->Hostname)));
}
else // Client MAC Address
{
UCHAR client_id[7];
client_id[0] = ARP_HARDWARE_TYPE_ETHERNET;
Copy(client_id + 1, ipc->MacAddress, 6);
Add(o, NewDhcpOption(DHCP_ID_CLIENT_ID, client_id, sizeof(client_id)));
} }
// User Class // User Class