3 Copyright (c) 2005 - 2007, Intel Corporation
4 All rights reserved. This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
18 Ip4 internal functions and type defintions.
23 #ifndef __EFI_IP4_IMPL_H__
24 #define __EFI_IP4_IMPL_H__
28 #include <Protocol/Ip4.h>
29 #include <Protocol/Ip4Config.h>
30 #include <Protocol/Arp.h>
31 #include <Protocol/ManagedNetwork.h>
33 #include <Library/DebugLib.h>
34 #include <Library/UefiRuntimeServicesTableLib.h>
35 #include <Library/UefiDriverEntryPoint.h>
36 #include <Library/UefiBootServicesTableLib.h>
37 #include <Library/BaseLib.h>
38 #include <Library/UefiLib.h>
39 #include <Library/NetLib.h>
40 #include <Library/BaseMemoryLib.h>
41 #include <Library/MemoryAllocationLib.h>
43 #include "Ip4Common.h"
44 #include "Ip4Driver.h"
47 #include "Ip4Option.h"
51 #include "Ip4Output.h"
56 IP4_PROTOCOL_SIGNATURE
= SIGNATURE_32 ('I', 'P', '4', 'P'),
57 IP4_SERVICE_SIGNATURE
= SIGNATURE_32 ('I', 'P', '4', 'S'),
60 // The state of IP4 protocol. It starts from UNCONFIGED. if it is
61 // successfully configured, it goes to CONFIGED. if configure NULL
62 // is called, it becomes UNCONFIGED again. If (partly) destoried, it
65 IP4_STATE_UNCONFIGED
= 0,
70 // The state of IP4 service. It starts from UNSTARTED. It transits
71 // to STARTED if autoconfigure is started. If default address is
72 // configured, it becomes CONFIGED. and if partly destoried, it goes
75 IP4_SERVICE_UNSTARTED
= 0,
79 } IP4_IMPL_ENUM_TYPES
;
82 /// IP4_TXTOKEN_WRAP wraps the upper layer's transmit token.
83 /// The user's data is kept in the Packet. When fragment is
84 /// needed, each fragment of the Packet has a reference to the
85 /// Packet, no data is actually copied. The Packet will be
86 /// released when all the fragments of it have been recycled by
87 /// MNP. Upon then, the IP4_TXTOKEN_WRAP will be released, and
88 /// user's event signalled.
91 IP4_PROTOCOL
*IpInstance
;
92 EFI_IP4_COMPLETION_TOKEN
*Token
;
99 /// IP4_RXDATA_WRAP wraps the data IP4 child delivers to the
100 /// upper layers. The received packet is kept in the Packet.
101 /// The Packet itself may be constructured from some fragments.
102 /// All the fragments of the Packet is organized by a
103 /// IP4_ASSEMBLE_ENTRY structure. If the Packet is recycled by
104 /// the upper layer, the assemble entry and its associated
105 /// fragments will be freed at last.
109 IP4_PROTOCOL
*IpInstance
;
111 EFI_IP4_RECEIVE_DATA RxData
;
115 struct _IP4_PROTOCOL
{
118 EFI_IP4_PROTOCOL Ip4Proto
;
122 IP4_SERVICE
*Service
;
123 LIST_ENTRY Link
; // Link to all the IP protocol from the service
126 // User's transmit/receive tokens, and received/deliverd packets
129 NET_MAP TxTokens
; // map between (User's Token, IP4_TXTOKE_WRAP)
130 LIST_ENTRY Received
; // Received but not delivered packet
131 LIST_ENTRY Delivered
; // Delivered and to be recycled packets
132 EFI_LOCK RecycleLock
;
135 // Instance's address and route tables. There are two route tables.
136 // RouteTable is used by the IP4 driver to route packet. EfiRouteTable
137 // is used to communicate the current route info to the upper layer.
139 IP4_INTERFACE
*Interface
;
140 LIST_ENTRY AddrLink
; // Ip instances with the same IP address.
141 IP4_ROUTE_TABLE
*RouteTable
;
143 EFI_IP4_ROUTE_TABLE
*EfiRouteTable
;
144 UINT32 EfiRouteCount
;
147 // IGMP data for this instance
149 IP4_ADDR
*Groups
; // stored in network byte order
152 EFI_IP4_CONFIG_DATA ConfigData
;
156 struct _IP4_SERVICE
{
158 EFI_SERVICE_BINDING_PROTOCOL ServiceBinding
;
163 // List of all the IP instances and interfaces, and default
164 // interface and route table and caches.
169 LIST_ENTRY Interfaces
;
171 IP4_INTERFACE
*DefaultInterface
;
172 IP4_ROUTE_TABLE
*DefaultRouteTable
;
175 // Ip reassemble utilities, and IGMP data
177 IP4_ASSEMBLE_TABLE Assemble
;
178 IGMP_SERVICE_DATA IgmpCtrl
;
181 // Low level protocol used by this service instance
184 EFI_HANDLE Controller
;
186 EFI_HANDLE MnpChildHandle
;
187 EFI_MANAGED_NETWORK_PROTOCOL
*Mnp
;
189 EFI_MANAGED_NETWORK_CONFIG_DATA MnpConfigData
;
190 EFI_SIMPLE_NETWORK_MODE SnpMode
;
195 // Auto configure staff
197 EFI_IP4_CONFIG_PROTOCOL
*Ip4Config
;
199 EFI_EVENT ReconfigEvent
;
200 EFI_EVENT ActiveEvent
;
203 // The string representation of the current mac address of the
204 // NIC this IP4_SERVICE works on.
209 #define IP4_INSTANCE_FROM_PROTOCOL(Ip4) \
210 CR ((Ip4), IP4_PROTOCOL, Ip4Proto, IP4_PROTOCOL_SIGNATURE)
212 #define IP4_SERVICE_FROM_PROTOCOL(Sb) \
213 CR ((Sb), IP4_SERVICE, ServiceBinding, IP4_SERVICE_SIGNATURE)
215 #define IP4_NO_MAPPING(IpInstance) (!(IpInstance)->Interface->Configured)
217 extern EFI_IP4_PROTOCOL mEfiIp4ProtocolTemplete
;
220 Config the MNP parameter used by IP. The IP driver use one MNP
221 child to transmit/receive frames. By default, it configures MNP
222 to receive unicast/multicast/broadcast. And it will enable/disable
223 the promiscous receive according to whether there is IP child
224 enable that or not. If Force is FALSE, it will iterate through
225 all the IP children to check whether the promiscuous receive
226 setting has been changed. If it hasn't been changed, it won't
227 reconfigure the MNP. If Force is TRUE, the MNP is configured no
228 matter whether that is changed or not.
230 @param IpSb The IP4 service instance that is to be changed.
231 @param Force Force the configuration or not.
233 @retval EFI_SUCCESS The MNP is successfully configured/reconfigured.
234 @retval Others Configuration failed.
238 Ip4ServiceConfigMnp (
239 IN IP4_SERVICE
*IpSb
,
244 Intiialize the IP4_PROTOCOL structure to the unconfigured states.
246 @param IpSb The IP4 service instance.
247 @param IpInstance The IP4 child instance.
254 IN IP4_SERVICE
*IpSb
,
255 IN OUT IP4_PROTOCOL
*IpInstance
259 Clean up the IP4 child, release all the resources used by it.
261 @param IpInstance The IP4 child to clean up.
263 @retval EFI_SUCCESS The IP4 child is cleaned up
264 @retval EFI_DEVICE_ERROR Some resources failed to be released
269 IN IP4_PROTOCOL
*IpInstance
273 Cancel the user's receive/transmit request.
275 @param IpInstance The IP4 child
276 @param Token The token to cancel. If NULL, all token will be
279 @retval EFI_SUCCESS The token is cancelled
280 @retval EFI_NOT_FOUND The token isn't found on either the
281 transmit/receive queue
282 @retval EFI_DEVICE_ERROR Not all token is cancelled when Token is NULL.
287 IN IP4_PROTOCOL
*IpInstance
,
288 IN EFI_IP4_COMPLETION_TOKEN
*Token OPTIONAL
292 Change the IP4 child's multicast setting. The caller
293 should make sure that the parameters is valid.
295 @param IpInstance The IP4 child to change the setting.
296 @param JoinFlag TRUE to join the group, otherwise leave it
297 @param GroupAddress The target group address
299 @retval EFI_ALREADY_STARTED Want to join the group, but already a member of it
300 @retval EFI_OUT_OF_RESOURCES Failed to allocate some resources.
301 @retval EFI_DEVICE_ERROR Failed to set the group configuraton
302 @retval EFI_SUCCESS Successfully updated the group setting.
303 @retval EFI_NOT_FOUND Try to leave the group which it isn't a member.
308 IN IP4_PROTOCOL
*IpInstance
,
310 IN EFI_IPv4_ADDRESS
*GroupAddress OPTIONAL
314 The heart beat timer of IP4 service instance. It times out
315 all of its IP4 children's received-but-not-delivered and
316 transmitted-but-not-recycle packets, and provides time input
317 for its IGMP protocol.
319 @param Event The IP4 service instance's heart beat timer.
320 @param Context The IP4 service instance.
333 Decrease the life of the transmitted packets. If it is
334 decreased to zero, cancel the packet. This function is
335 called by Ip4PacketTimerTicking which time out both the
336 received-but-not-delivered and transmitted-but-not-recycle
339 @param Map The IP4 child's transmit map.
340 @param Item Current transmitted packet
341 @param Context Not used.
343 @retval EFI_SUCCESS Always returns EFI_SUCCESS
347 Ip4SentPacketTicking (
349 IN NET_MAP_ITEM
*Item
,