/**
Send an initial DISCOVER or REQUEST message according to the
DHCP service's current state.
@param[in] DhcpSb The DHCP service instance
@retval EFI_SUCCESS The request has been sent
@retval other Some error occurs when sending the request.
**/
EFI_STATUS
DhcpInitRequest (
IN DHCP_SERVICE *DhcpSb
)
{
EFI_STATUS Status;
ASSERT ((DhcpSb->DhcpState == Dhcp4Init) || (DhcpSb->DhcpState == Dhcp4InitReboot));
//
// Clear initial time to make sure that elapsed-time is set to 0 for first Discover or REQUEST message.
//
DhcpSb->ActiveChild->ElaspedTime= 0;
if (DhcpSb->DhcpState == Dhcp4Init) {
DhcpSetState (DhcpSb, Dhcp4Selecting, FALSE);
Status = DhcpSendMessage (DhcpSb, NULL, NULL, DHCP_MSG_DISCOVER, NULL);
if (EFI_ERROR (Status)) {
DhcpSb->DhcpState = Dhcp4Init;
return Status;
}
} else {
DhcpSetState (DhcpSb, Dhcp4Rebooting, FALSE);
Status = DhcpSendMessage (DhcpSb, NULL, NULL, DHCP_MSG_REQUEST, NULL);
if (EFI_ERROR (Status)) {
DhcpSb->DhcpState = Dhcp4InitReboot;
return Status;
}
}
return EFI_SUCCESS;
}
EFI_STATUS
DhcpInitRequest (
IN DHCP_SERVICE *DhcpSb
)
/*++
Routine Description:
Send an initial DISCOVER or REQUEST message according to the
DHCP service's current state.
Arguments:
DhcpSb - The DHCP service instance
Returns:
EFI_SUCCESS - The request has been sent
--*/
{
EFI_STATUS Status;
ASSERT ((DhcpSb->DhcpState == Dhcp4Init) || (DhcpSb->DhcpState == Dhcp4InitReboot));
if (DhcpSb->DhcpState == Dhcp4Init) {
DhcpSetState (DhcpSb, Dhcp4Selecting, FALSE);
Status = DhcpSendMessage (DhcpSb, NULL, NULL, DHCP_MSG_DISCOVER, NULL);
if (EFI_ERROR (Status)) {
DhcpSb->DhcpState = Dhcp4Init;
return Status;
}
} else {
DhcpSetState (DhcpSb, Dhcp4Rebooting, FALSE);
Status = DhcpSendMessage (DhcpSb, NULL, NULL, DHCP_MSG_REQUEST, NULL);
if (EFI_ERROR (Status)) {
DhcpSb->DhcpState = Dhcp4InitReboot;
return Status;
}
}
return EFI_SUCCESS;
}
