+/**
+ Check the default address used by the IPv4 driver is static or dynamic (acquired
+ from DHCP).
+
+ @param Controller The controller handle which has the NIC Ip4 Config Protocol
+ relative with the default address to judge.
+
+ @retval TRUE If the default address is static.
+ @retval FALSE If the default address is acquired from DHCP.
+
+**/
+STATIC
+BOOLEAN
+NetLibDefaultAddressIsStatic (
+ IN EFI_HANDLE Controller
+ )
+{
+ EFI_STATUS Status;
+ EFI_NIC_IP4_CONFIG_PROTOCOL *NicIp4;
+ UINTN Len;
+ NIC_IP4_CONFIG_INFO *ConfigInfo;
+ BOOLEAN IsStatic;
+
+ Status = gBS->HandleProtocol (
+ Controller,
+ &gEfiNicIp4ConfigProtocolGuid,
+ (VOID **) &NicIp4
+ );
+ if (EFI_ERROR (Status)) {
+ return TRUE;
+ }
+
+ Len = 0;
+ Status = NicIp4->GetInfo (NicIp4, &Len, NULL);
+ if (Status != EFI_BUFFER_TOO_SMALL) {
+ return TRUE;
+ }
+
+ ConfigInfo = NetAllocatePool (Len);
+ if (ConfigInfo == NULL) {
+ return TRUE;
+ }
+
+ IsStatic = TRUE;
+ Status = NicIp4->GetInfo (NicIp4, &Len, ConfigInfo);
+ if (EFI_ERROR (Status)) {
+ goto ON_EXIT;
+ }
+
+ IsStatic = (BOOLEAN) (ConfigInfo->Source == IP4_CONFIG_SOURCE_STATIC);
+
+ON_EXIT:
+
+ NetFreePool (ConfigInfo);
+
+ return IsStatic;
+}
+
+/**
+ Create an IPv4 device path node.
+
+ @param Node Pointer to the IPv4 device path node.
+ @param Controller The handle where the NIC IP4 config protocol resides.
+ @param LocalIp The local IPv4 address.
+ @param LocalPort The local port.
+ @param RemoteIp The remote IPv4 address.
+ @param RemotePort The remote port.
+ @param Protocol The protocol type in the IP header.
+ @param UseDefaultAddress Whether this instance is using default address or not.
+
+ @retval None
+**/
+VOID
+NetLibCreateIPv4DPathNode (
+ IN OUT IPv4_DEVICE_PATH *Node,
+ IN EFI_HANDLE Controller,
+ IN IP4_ADDR LocalIp,
+ IN UINT16 LocalPort,
+ IN IP4_ADDR RemoteIp,
+ IN UINT16 RemotePort,
+ IN UINT16 Protocol,
+ IN BOOLEAN UseDefaultAddress
+ )
+{
+ Node->Header.Type = MESSAGING_DEVICE_PATH;
+ Node->Header.SubType = MSG_IPv4_DP;
+ SetDevicePathNodeLength (&Node->Header, 19);
+
+ NetCopyMem (&Node->LocalIpAddress, &LocalIp, sizeof (EFI_IPv4_ADDRESS));
+ NetCopyMem (&Node->RemoteIpAddress, &RemoteIp, sizeof (EFI_IPv4_ADDRESS));
+
+ Node->LocalPort = LocalPort;
+ Node->RemotePort = RemotePort;
+
+ Node->Protocol = Protocol;
+
+ if (!UseDefaultAddress) {
+ Node->StaticIpAddress = TRUE;
+ } else {
+ Node->StaticIpAddress = NetLibDefaultAddressIsStatic (Controller);
+ }
+}
+
projects / mirror_edk2.git / commitdiff