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MdeModulePkg/IpIoLib: add more error handling code to DxeIpIoLib.
[mirror_edk2.git] / MdeModulePkg / Include / Library / IpIoLib.h
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97b38d4e 1/** @file\r
fb115c61 2 This library is only intended to be used by UEFI network stack modules.\r
3 It provides the combined IpIo layer on the EFI IP4 Protocol and EFI IP6 protocol.\r
97b38d4e 4\r
8569a87e 5Copyright (c) 2005 - 2017, Intel Corporation. All rights reserved.<BR>\r
64a80549 6This program and the accompanying materials are licensed and made available under \r
7the terms and conditions of the BSD License that accompanies this distribution. \r
8The full text of the license may be found at\r
9http://opensource.org/licenses/bsd-license.php. \r
97b38d4e 10\r
64a80549 11THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
97b38d4e 12WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
13\r
14**/\r
15\r
16#ifndef _IP_IO_H_\r
17#define _IP_IO_H_\r
18\r
19#include <Protocol/Ip4.h>\r
fb115c61 20#include <Protocol/Ip6.h>\r
cdfdbb97 21\r
97b38d4e 22#include <Library/NetLib.h>\r
23\r
24//\r
e9b67286 25// type and code define for ICMP protocol error \r
97b38d4e 26// from IP\r
27//\r
28#define ICMP_TYPE_UNREACH 3\r
cdfdbb97 29#define ICMP_TYPE_TIMXCEED 11\r
97b38d4e 30#define ICMP_TYPE_PARAMPROB 12\r
31#define ICMP_TYPE_SOURCEQUENCH 4\r
32\r
33#define ICMP_CODE_UNREACH_NET 0\r
34#define ICMP_CODE_UNREACH_HOST 1\r
35#define ICMP_CODE_UNREACH_PROTOCOL 2\r
36#define ICMP_CODE_UNREACH_PORT 3\r
37#define ICMP_CODE_UNREACH_NEEDFRAG 4\r
38#define ICMP_CODE_UNREACH_SRCFAIL 5\r
39#define ICMP_CODE_UNREACH_NET_UNKNOWN 6\r
40#define ICMP_CODE_UNREACH_HOST_UNKNOWN 7\r
41#define ICMP_CODE_UNREACH_ISOLATED 8\r
42#define ICMP_CODE_UNREACH_NET_PROHIB 9\r
43#define ICMP_CODE_UNREACH_HOST_PROHIB 10\r
44#define ICMP_CODE_UNREACH_TOSNET 11\r
45#define ICMP_CODE_UNREACH_TOSHOST 12\r
46\r
cdfdbb97 47/**\r
e9b67286 48 Get the IP header length from the struct EFI_IP4_HEADER. HeaderLength is\r
cdfdbb97 49 Internet header length in 32-bit words, so HeaderLength<<2 is the real\r
50 length of IP header.\r
51 \r
64a80549 52 @param[out] HdrPtr A pointer to EFI_IP4_HEADER.\r
cdfdbb97 53 \r
64a80549 54 @return The IP header length.\r
cdfdbb97 55**/\r
56#define EFI_IP4_HEADER_LEN(HdrPtr) ((HdrPtr)->HeaderLength << 2)\r
57\r
58/**\r
59 To types of ICMP error which consist of ICMP header, IP header and original \r
60 datagram's data, get length from sum of ICMP header length, IP header length \r
61 and first 64 bits of datagram's data length.\r
62 \r
64a80549 63 @param[in] IpHdr A pointer to EFI_IP4_HEADER.\r
cdfdbb97 64 \r
64a80549 65 @return The ICMP error length.\r
cdfdbb97 66**/\r
67#define ICMP_ERRLEN(IpHdr) \\r
68 (sizeof(IP4_ICMP_HEAD) + EFI_IP4_HEADER_LEN(IpHdr) + 8)\r
69\r
70/**\r
71 Get the packet header from NET_BUF.\r
72 \r
64a80549 73 @param[out] Buf A pointer to NET_BUF.\r
74 @param[in] Type Header type.\r
cdfdbb97 75 \r
64a80549 76 @return The pointer to packet header.\r
cdfdbb97 77**/\r
78#define NET_PROTO_HDR(Buf, Type) ((Type *) ((Buf)->BlockOp[0].Head))\r
79\r
80 \r
fb115c61 81extern EFI_IP4_CONFIG_DATA mIp4IoDefaultIpConfigData;\r
82extern EFI_IP6_CONFIG_DATA mIp6IoDefaultIpConfigData;\r
83\r
cdfdbb97 84\r
e29a2e7e 85///\r
86/// This error will be delivered to the\r
87/// listening transportation layer protocol\r
88/// that consumes IpIO.\r
89///\r
b45b45b2 90\r
91#define ICMP_ERR_UNREACH_NET 0\r
92#define ICMP_ERR_UNREACH_HOST 1\r
93#define ICMP_ERR_UNREACH_PROTOCOL 2\r
94#define ICMP_ERR_UNREACH_PORT 3\r
95#define ICMP_ERR_MSGSIZE 4\r
96#define ICMP_ERR_UNREACH_SRCFAIL 5\r
97#define ICMP_ERR_TIMXCEED_INTRANS 6\r
98#define ICMP_ERR_TIMXCEED_REASS 7\r
99#define ICMP_ERR_QUENCH 8\r
100#define ICMP_ERR_PARAMPROB 9\r
101\r
102#define ICMP6_ERR_UNREACH_NET 0\r
103#define ICMP6_ERR_UNREACH_HOST 1\r
104#define ICMP6_ERR_UNREACH_PROTOCOL 2\r
105#define ICMP6_ERR_UNREACH_PORT 3\r
106#define ICMP6_ERR_PACKAGE_TOOBIG 4\r
107#define ICMP6_ERR_TIMXCEED_HOPLIMIT 5\r
108#define ICMP6_ERR_TIMXCEED_REASS 6\r
109#define ICMP6_ERR_PARAMPROB_HEADER 7\r
110#define ICMP6_ERR_PARAMPROB_NEXHEADER 8\r
111#define ICMP6_ERR_PARAMPROB_IPV6OPTION 9\r
fb115c61 112\r
e29a2e7e 113///\r
e9b67286 114/// The helper struct for IpIoGetIcmpErrStatus(). It is for internal use only.\r
e29a2e7e 115///\r
cdfdbb97 116typedef struct {\r
fb115c61 117 BOOLEAN IsHard;\r
118 BOOLEAN Notify;\r
97b38d4e 119} ICMP_ERROR_INFO;\r
120\r
fb115c61 121typedef union {\r
122 EFI_IP4_COMPLETION_TOKEN Ip4Token;\r
123 EFI_IP6_COMPLETION_TOKEN Ip6Token;\r
124} IP_IO_IP_COMPLETION_TOKEN;\r
125\r
126typedef union {\r
127 EFI_IP4_TRANSMIT_DATA Ip4TxData;\r
128 EFI_IP6_TRANSMIT_DATA Ip6TxData;\r
129} IP_IO_IP_TX_DATA;\r
130\r
131typedef union {\r
132 EFI_IP4_RECEIVE_DATA Ip4RxData;\r
133 EFI_IP6_RECEIVE_DATA Ip6RxData;\r
134} IP_IO_IP_RX_DATA;\r
135\r
136typedef union {\r
137 EFI_IP4_OVERRIDE_DATA Ip4OverrideData;\r
138 EFI_IP6_OVERRIDE_DATA Ip6OverrideData;\r
139} IP_IO_OVERRIDE;\r
140\r
141typedef union {\r
142 EFI_IP4_CONFIG_DATA Ip4CfgData;\r
143 EFI_IP6_CONFIG_DATA Ip6CfgData;\r
144} IP_IO_IP_CONFIG_DATA;\r
145\r
b45b45b2 146typedef union {\r
147 EFI_IP4_HEADER *Ip4Hdr;\r
148 EFI_IP6_HEADER *Ip6Hdr;\r
149} IP_IO_IP_HEADER;\r
150\r
151typedef union {\r
152 IP4_ADDR SubnetMask;\r
153 UINT8 PrefixLength;\r
154} IP_IO_IP_MASK;\r
155\r
2a2e33b2 156typedef union {\r
157 EFI_IP4_PROTOCOL *Ip4;\r
158 EFI_IP6_PROTOCOL *Ip6;\r
159} IP_IO_IP_PROTOCOL;\r
160\r
e29a2e7e 161///\r
162/// The IP session for an IP receive packet.\r
163///\r
97b38d4e 164typedef struct _EFI_NET_SESSION_DATA {\r
64a80549 165 EFI_IP_ADDRESS Source; ///< Source IP of the received packet.\r
166 EFI_IP_ADDRESS Dest; ///< Destination IP of the received packet.\r
167 IP_IO_IP_HEADER IpHdr; ///< IP header of the received packet.\r
a09ee46d 168 UINT32 IpHdrLen; ///< IP header length of the received packet. \r
169 ///< For IPv6, it includes the IP6 header \r
170 ///< length and extension header length. For\r
171 ///< IPv4, it includes the IP4 header length\r
172 ///< and options length.\r
64a80549 173 UINT8 IpVersion; ///< The IP version of the received packet.\r
97b38d4e 174} EFI_NET_SESSION_DATA;\r
175\r
e29a2e7e 176/**\r
177 The prototype is called back when an IP packet is received.\r
178 \r
64a80549 179 @param[in] Status The result of the receive request.\r
180 @param[in] IcmpErr Valid when Status is EFI_ICMP_ERROR.\r
181 @param[in] NetSession The IP session for the received packet.\r
182 @param[in] Pkt The packet received.\r
e9b67286 183 @param[in] Context The data provided by the user for the received packet when\r
cdfdbb97 184 the callback is registered in IP_IO_OPEN_DATA::RcvdContext.\r
e29a2e7e 185 \r
186**/\r
97b38d4e 187typedef\r
188VOID\r
e798cd87 189(EFIAPI *PKT_RCVD_NOTIFY) (\r
e29a2e7e 190 IN EFI_STATUS Status, \r
b45b45b2 191 IN UINT8 IcmpErr,\r
e29a2e7e 192 IN EFI_NET_SESSION_DATA *NetSession,\r
193 IN NET_BUF *Pkt,\r
194 IN VOID *Context\r
97b38d4e 195 );\r
196\r
e29a2e7e 197/**\r
198 The prototype is called back when an IP packet is sent.\r
199 \r
64a80549 200 @param[in] Status Result of the IP packet being sent.\r
cdfdbb97 201 @param[in] Context The data provided by user for the received packet when\r
202 the callback is registered in IP_IO_OPEN_DATA::SndContext.\r
2a2e33b2 203 @param[in] Sender A Union type to specify a pointer of EFI_IP4_PROTOCOL \r
204 or EFI_IP6_PROTOCOL.\r
64a80549 205 @param[in] NotifyData The Context data specified when calling IpIoSend()\r
e29a2e7e 206 \r
207**/\r
97b38d4e 208typedef\r
209VOID\r
e798cd87 210(EFIAPI *PKT_SENT_NOTIFY) (\r
2a2e33b2 211 IN EFI_STATUS Status,\r
212 IN VOID *Context,\r
213 IN IP_IO_IP_PROTOCOL Sender,\r
214 IN VOID *NotifyData\r
97b38d4e 215 );\r
216\r
e29a2e7e 217///\r
fb115c61 218/// This data structure wraps Ip4/Ip6 instances. The IpIo Library uses it for all\r
219/// Ip4/Ip6 operations.\r
e29a2e7e 220///\r
97b38d4e 221typedef struct _IP_IO {\r
e29a2e7e 222 ///\r
223 /// The node used to link this IpIo to the active IpIo list.\r
224 ///\r
97b38d4e 225 LIST_ENTRY Entry;\r
226\r
e29a2e7e 227 ///\r
228 /// The list used to maintain the IP instance for different sending purpose.\r
229 ///\r
97b38d4e 230 LIST_ENTRY IpList;\r
e29a2e7e 231 \r
97b38d4e 232 EFI_HANDLE Controller;\r
233 EFI_HANDLE Image;\r
234 EFI_HANDLE ChildHandle;\r
e29a2e7e 235 //\r
236 // The IP instance consumed by this IP_IO\r
237 //\r
2a2e33b2 238 IP_IO_IP_PROTOCOL Ip;\r
97b38d4e 239 BOOLEAN IsConfigured;\r
240\r
e29a2e7e 241 ///\r
64a80549 242 /// Some ip configuration data can be changed.\r
e29a2e7e 243 ///\r
97b38d4e 244 UINT8 Protocol;\r
245\r
e29a2e7e 246 ///\r
64a80549 247 /// Token and event used to get data from IP.\r
e29a2e7e 248 ///\r
fb115c61 249 IP_IO_IP_COMPLETION_TOKEN RcvToken; \r
97b38d4e 250\r
e29a2e7e 251 ///\r
64a80549 252 /// List entry used to link the token passed to IP_IO.\r
e29a2e7e 253 ///\r
97b38d4e 254 LIST_ENTRY PendingSndList;\r
255\r
256 //\r
257 // User interface used to get notify from IP_IO\r
258 //\r
64a80549 259 VOID *RcvdContext; ///< See IP_IO_OPEN_DATA::RcvdContext.\r
260 VOID *SndContext; ///< See IP_IO_OPEN_DATA::SndContext.\r
261 PKT_RCVD_NOTIFY PktRcvdNotify; ///< See IP_IO_OPEN_DATA::PktRcvdNotify.\r
262 PKT_SENT_NOTIFY PktSentNotify; ///< See IP_IO_OPEN_DATA::PktSentNotify.\r
b45b45b2 263 UINT8 IpVersion;\r
01b5ac88
FS		 264 IP4_ADDR StationIp;\r
265 IP4_ADDR SubnetMask;\r
97b38d4e 266} IP_IO;\r
267\r
e29a2e7e 268///\r
e9b67286 269/// The struct is for the user to pass IP configuration and callbacks to IP_IO.\r
e29a2e7e 270/// It is used by IpIoOpen().\r
271///\r
97b38d4e 272typedef struct _IP_IO_OPEN_DATA {\r
64a80549 273 IP_IO_IP_CONFIG_DATA IpConfigData; ///< Configuration of the IP instance.\r
274 VOID *RcvdContext; ///< Context data used by receive callback.\r
275 VOID *SndContext; ///< Context data used by send callback.\r
276 PKT_RCVD_NOTIFY PktRcvdNotify; ///< Receive callback.\r
277 PKT_SENT_NOTIFY PktSentNotify; ///< Send callback.\r
97b38d4e 278} IP_IO_OPEN_DATA;\r
279\r
e29a2e7e 280///\r
281/// Internal struct book-keeping send request of IP_IO.\r
282///\r
283/// An IP_IO_SEND_ENTRY will be created each time a send request is issued to\r
284/// IP_IO via IpIoSend().\r
285///\r
97b38d4e 286typedef struct _IP_IO_SEND_ENTRY {\r
287 LIST_ENTRY Entry;\r
288 IP_IO *IpIo;\r
289 VOID *Context;\r
290 VOID *NotifyData;\r
2a2e33b2 291 IP_IO_IP_PROTOCOL Ip;\r
97b38d4e 292 NET_BUF *Pkt;\r
fb115c61 293 IP_IO_IP_COMPLETION_TOKEN SndToken;\r
97b38d4e 294} IP_IO_SEND_ENTRY;\r
295\r
e29a2e7e 296///\r
297/// The IP_IO_IP_INFO is used in IpIoSend() to override the default IP instance\r
298/// in IP_IO.\r
299///\r
97b38d4e 300typedef struct _IP_IO_IP_INFO {\r
fb115c61 301 EFI_IP_ADDRESS Addr;\r
b45b45b2 302 IP_IO_IP_MASK PreMask;\r
97b38d4e 303 LIST_ENTRY Entry;\r
304 EFI_HANDLE ChildHandle;\r
2a2e33b2 305 IP_IO_IP_PROTOCOL Ip;\r
fb115c61 306 IP_IO_IP_COMPLETION_TOKEN DummyRcvToken;\r
97b38d4e 307 INTN RefCnt;\r
b45b45b2 308 UINT8 IpVersion;\r
97b38d4e 309} IP_IO_IP_INFO;\r
310\r
311/**\r
312 Create a new IP_IO instance.\r
e29a2e7e 313 \r
fb115c61 314 This function uses IP4/IP6 service binding protocol in Controller to create\r
315 an IP4/IP6 child (aka IP4/IP6 instance).\r
97b38d4e 316\r
cdfdbb97 317 @param[in] Image The image handle of the driver or application that\r
e29a2e7e 318 consumes IP_IO.\r
fb115c61 319 @param[in] Controller The controller handle that has IP4 or IP6 service\r
320 binding protocol installed.\r
321 @param[in] IpVersion The version of the IP protocol to use, either\r
322 IPv4 or IPv6. \r
97b38d4e 323\r
64a80549 324 @return The pointer to a newly created IP_IO instance, or NULL if failed.\r
97b38d4e 325\r
326**/\r
327IP_IO *\r
328EFIAPI\r
329IpIoCreate (\r
330 IN EFI_HANDLE Image,\r
fb115c61 331 IN EFI_HANDLE Controller,\r
b45b45b2 332 IN UINT8 IpVersion\r
97b38d4e 333 );\r
334\r
335/**\r
336 Destroy an IP_IO instance.\r
e29a2e7e 337 \r
338 This function is paired with IpIoCreate(). The IP_IO will be closed first.\r
339 Resource will be freed afterwards. See IpIoClose().\r
97b38d4e 340\r
64a80549 341 @param[in, out] IpIo The pointer to the IP_IO instance that needs to be\r
e29a2e7e 342 destroyed.\r
97b38d4e 343\r
64a80549 344 @retval EFI_SUCCESS The IP_IO instance was destroyed successfully.\r
345 @retval Others An error condition occurred.\r
97b38d4e 346\r
347**/\r
348EFI_STATUS\r
349EFIAPI\r
350IpIoDestroy (\r
cdfdbb97 351 IN OUT IP_IO *IpIo\r
97b38d4e 352 );\r
353\r
354/**\r
355 Stop an IP_IO instance.\r
e29a2e7e 356 \r
e9b67286 357 This function is paired with IpIoOpen(). The IP_IO will be unconfigured, and all\r
358 pending send/receive tokens will be canceled.\r
97b38d4e 359\r
64a80549 360 @param[in, out] IpIo The pointer to the IP_IO instance that needs to stop.\r
97b38d4e 361\r
cdfdbb97 362 @retval EFI_SUCCESS The IP_IO instance stopped successfully.\r
64a80549 363 @retval Others Anrror condition occurred.\r
97b38d4e 364\r
365**/\r
366EFI_STATUS\r
367EFIAPI\r
368IpIoStop (\r
cdfdbb97 369 IN OUT IP_IO *IpIo\r
97b38d4e 370 );\r
371\r
372/**\r
373 Open an IP_IO instance for use.\r
e29a2e7e 374 \r
375 This function is called after IpIoCreate(). It is used for configuring the IP\r
376 instance and register the callbacks and their context data for sending and\r
377 receiving IP packets.\r
97b38d4e 378\r
64a80549 379 @param[in, out] IpIo The pointer to an IP_IO instance that needs\r
cdfdbb97 380 to open.\r
381 @param[in] OpenData The configuration data and callbacks for\r
382 the IP_IO instance.\r
97b38d4e 383\r
cdfdbb97 384 @retval EFI_SUCCESS The IP_IO instance opened with OpenData\r
385 successfully.\r
64a80549 386 @retval EFI_ACCESS_DENIED The IP_IO instance is configured; avoid \r
387 reopening it.\r
388 @retval Others An error condition occurred.\r
97b38d4e 389\r
390**/\r
391EFI_STATUS\r
e29a2e7e 392EFIAPI\r
97b38d4e 393IpIoOpen (\r
cdfdbb97 394 IN OUT IP_IO *IpIo,\r
395 IN IP_IO_OPEN_DATA *OpenData\r
97b38d4e 396 );\r
397\r
398/**\r
399 Send out an IP packet.\r
e29a2e7e 400 \r
401 This function is called after IpIoOpen(). The data to be sent are wrapped in\r
8569a87e
FS		 402 Pkt. The IP instance wrapped in IpIo is used for sending by default but can be\r
403 overriden by Sender. Other sending configs, like source address and gateway\r
404 address etc., are specified in OverrideData.\r
97b38d4e 405\r
8569a87e 406 @param[in, out] IpIo Pointer to an IP_IO instance used for sending IP\r
cdfdbb97 407 packet.\r
8569a87e
FS		 408 @param[in, out] Pkt Pointer to the IP packet to be sent.\r
409 @param[in] Sender The IP protocol instance used for sending.\r
410 @param[in] Context Optional context data.\r
411 @param[in] NotifyData Optional notify data.\r
cdfdbb97 412 @param[in] Dest The destination IP address to send this packet to.\r
8569a87e 413 This parameter is optional when using IPv6.\r
cdfdbb97 414 @param[in] OverrideData The data to override some configuration of the IP\r
415 instance used for sending.\r
97b38d4e 416\r
8569a87e
FS		 417 @retval EFI_SUCCESS The operation is completed successfully.\r
418 @retval EFI_INVALID_PARAMETER The input parameter is not correct.\r
cdfdbb97 419 @retval EFI_NOT_STARTED The IpIo is not configured.\r
8569a87e 420 @retval EFI_OUT_OF_RESOURCES Failed due to resource limit.\r
97b38d4e 421\r
422**/\r
423EFI_STATUS\r
424EFIAPI\r
425IpIoSend (\r
cdfdbb97 426 IN OUT IP_IO *IpIo,\r
427 IN OUT NET_BUF *Pkt,\r
428 IN IP_IO_IP_INFO *Sender OPTIONAL,\r
429 IN VOID *Context OPTIONAL,\r
430 IN VOID *NotifyData OPTIONAL,\r
c167ef91 431 IN EFI_IP_ADDRESS *Dest OPTIONAL,\r
cdfdbb97 432 IN IP_IO_OVERRIDE *OverrideData OPTIONAL\r
97b38d4e 433 );\r
434\r
435/**\r
64a80549 436 Cancel the IP transmit token that wraps this Packet.\r
97b38d4e 437\r
64a80549 438 @param[in] IpIo The pointer to the IP_IO instance.\r
439 @param[in] Packet The pointer to the packet of NET_BUF to cancel.\r
97b38d4e 440\r
441**/\r
442VOID\r
443EFIAPI\r
444IpIoCancelTxToken (\r
445 IN IP_IO *IpIo,\r
446 IN VOID *Packet\r
447 );\r
448\r
449/**\r
450 Add a new IP instance for sending data.\r
e29a2e7e 451 \r
452 The function is used to add the IP_IO to the IP_IO sending list. The caller\r
453 can later use IpIoFindSender() to get the IP_IO and call IpIoSend() to send\r
454 data.\r
97b38d4e 455\r
64a80549 456 @param[in, out] IpIo The pointer to an IP_IO instance to add a new IP\r
e9b67286 457 instance for sending purposes.\r
97b38d4e 458\r
64a80549 459 @return The pointer to the created IP_IO_IP_INFO structure; NULL if failed.\r
97b38d4e 460\r
461**/\r
462IP_IO_IP_INFO *\r
463EFIAPI\r
464IpIoAddIp (\r
cdfdbb97 465 IN OUT IP_IO *IpIo\r
97b38d4e 466 );\r
467\r
468/**\r
fb115c61 469 Configure the IP instance of this IpInfo and start the receiving if IpConfigData\r
97b38d4e 470 is not NULL.\r
471\r
64a80549 472 @param[in, out] IpInfo The pointer to the IP_IO_IP_INFO instance.\r
fb115c61 473 @param[in, out] IpConfigData The IP4 or IP6 configure data used to configure \r
474 the IP instance. If NULL, the IP instance is reset.\r
475 If UseDefaultAddress is set to TRUE, and the configure\r
cdfdbb97 476 operation succeeds, the default address information\r
fb115c61 477 is written back in this IpConfigData.\r
97b38d4e 478\r
64a80549 479 @retval EFI_SUCCESS The IP instance of this IpInfo was configured successfully,\r
e9b67286 480 or there is no need to reconfigure it.\r
64a80549 481 @retval Others The configuration failed.\r
97b38d4e 482\r
483**/\r
484EFI_STATUS\r
485EFIAPI\r
486IpIoConfigIp (\r
cdfdbb97 487 IN OUT IP_IO_IP_INFO *IpInfo,\r
fb115c61 488 IN OUT VOID *IpConfigData OPTIONAL\r
97b38d4e 489 );\r
490\r
491/**\r
492 Destroy an IP instance maintained in IpIo->IpList for\r
493 sending purpose.\r
e29a2e7e 494 \r
495 This function pairs with IpIoAddIp(). The IpInfo is previously created by\r
496 IpIoAddIp(). The IP_IO_IP_INFO::RefCnt is decremented and the IP instance\r
497 will be dstroyed if the RefCnt is zero.\r
97b38d4e 498\r
64a80549 499 @param[in] IpIo The pointer to the IP_IO instance.\r
500 @param[in] IpInfo The pointer to the IpInfo to be removed.\r
97b38d4e 501\r
97b38d4e 502**/\r
503VOID\r
504EFIAPI\r
505IpIoRemoveIp (\r
506 IN IP_IO *IpIo,\r
507 IN IP_IO_IP_INFO *IpInfo\r
508 );\r
509\r
510/**\r
511 Find the first IP protocol maintained in IpIo whose local\r
e9b67286 512 address is the same as Src.\r
e29a2e7e 513 \r
514 This function is called when the caller needs the IpIo to send data to the\r
515 specified Src. The IpIo was added previously by IpIoAddIp().\r
97b38d4e 516\r
64a80549 517 @param[in, out] IpIo The pointer to the pointer of the IP_IO instance.\r
fb115c61 518 @param[in] IpVersion The version of the IP protocol to use, either\r
519 IPv4 or IPv6.\r
cdfdbb97 520 @param[in] Src The local IP address.\r
97b38d4e 521\r
64a80549 522 @return The pointer to the IP protocol can be used for sending purpose and its local\r
e29a2e7e 523 address is the same with Src.\r
97b38d4e 524\r
525**/\r
526IP_IO_IP_INFO *\r
527EFIAPI\r
528IpIoFindSender (\r
fb115c61 529 IN OUT IP_IO **IpIo,\r
b45b45b2 530 IN UINT8 IpVersion,\r
fb115c61 531 IN EFI_IP_ADDRESS *Src\r
97b38d4e 532 );\r
533\r
534/**\r
e29a2e7e 535 Get the ICMP error map information.\r
536 \r
537 The ErrorStatus will be returned. The IsHard and Notify are optional. If they\r
538 are not NULL, this routine will fill them.\r
97b38d4e 539\r
3a1ab4bc 540 @param[in] IcmpError IcmpError Type.\r
fb115c61 541 @param[in] IpVersion The version of the IP protocol to use,\r
3b1464d5 542 either IPv4 or IPv6. \r
543 @param[out] IsHard If TRUE, indicates that it is a hard error.\r
544 @param[out] Notify If TRUE, SockError needs to be notified.\r
97b38d4e 545\r
64a80549 546 @return The ICMP Error Status, such as EFI_NETWORK_UNREACHABLE.\r
97b38d4e 547\r
548**/\r
549EFI_STATUS\r
550EFIAPI\r
551IpIoGetIcmpErrStatus (\r
b45b45b2 552 IN UINT8 IcmpError,\r
553 IN UINT8 IpVersion,\r
e29a2e7e 554 OUT BOOLEAN *IsHard OPTIONAL,\r
555 OUT BOOLEAN *Notify OPTIONAL\r
97b38d4e 556 );\r
557\r
fb115c61 558/**\r
559 Refresh the remote peer's Neighbor Cache entries.\r
560\r
561 This function is called when the caller needs the IpIo to refresh the existing\r
562 IPv6 neighbor cache entries since the neighbor is considered reachable by the \r
563 node has recently received a confirmation that packets sent recently to the \r
564 neighbor were received by its IP layer. \r
565\r
64a80549 566 @param[in] IpIo The pointer to an IP_IO instance\r
fb115c61 567 @param[in] Neighbor The IP address of the neighbor\r
64a80549 568 @param[in] Timeout The time in 100-ns units that this entry will\r
fb115c61 569 remain in the neighbor cache. A value of \r
570 zero means that the entry is permanent. \r
571 A value of non-zero means that the entry is \r
572 dynamic and will be deleted after Timeout.\r
573\r
64a80549 574 @retval EFI_SUCCESS The operation completed successfully.\r
fb115c61 575 @retval EFI_NOT_STARTED The IpIo is not configured.\r
64a80549 576 @retval EFI_INVALID_PARAMETER The Neighbor Address is invalid.\r
fb115c61 577 @retval EFI_NOT_FOUND The neighbor cache entry is not in the \r
578 neighbor table. \r
64a80549 579 @retval EFI_OUT_OF_RESOURCES Failed due to resource limitations.\r
fb115c61 580\r
581**/\r
582EFI_STATUS\r
583IpIoRefreshNeighbor (\r
584 IN IP_IO *IpIo,\r
585 IN EFI_IP_ADDRESS *Neighbor,\r
586 IN UINT32 Timeout \r
587 );\r
588\r
97b38d4e 589#endif\r
fb115c61 590\r
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