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83cbd279 | 1 | /** @file\r |
3e8c18da | 2 | Ip4 internal functions and type defintions.\r |
3 | \r | |
1f6729ff | 4 | Copyright (c) 2005 - 2015, Intel Corporation. All rights reserved.<BR>\r |
c79de074 SEHM |
5 | (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r |
6 | \r | |
e5eed7d3 | 7 | This program and the accompanying materials\r |
83cbd279 | 8 | are licensed and made available under the terms and conditions of the BSD License\r |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
83cbd279 | 15 | **/\r |
16 | \r | |
17 | #ifndef __EFI_IP4_IMPL_H__\r | |
18 | #define __EFI_IP4_IMPL_H__\r | |
19 | \r | |
2517435c | 20 | #include <Uefi.h>\r |
772db4bb | 21 | \r |
a1503a32 | 22 | #include <Protocol/IpSec.h>\r |
5f778b1f | 23 | #include <Protocol/Ip4.h>\r |
1f6729ff | 24 | #include <Protocol/Ip4Config2.h>\r |
772db4bb | 25 | #include <Protocol/Arp.h>\r |
26 | #include <Protocol/ManagedNetwork.h>\r | |
1f6729ff | 27 | #include <Protocol/Dhcp4.h>\r |
28 | #include <Protocol/HiiConfigRouting.h>\r | |
29 | #include <Protocol/HiiConfigAccess.h>\r | |
772db4bb | 30 | \r |
31 | #include <Library/DebugLib.h>\r | |
32 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
33 | #include <Library/UefiDriverEntryPoint.h>\r | |
34 | #include <Library/UefiBootServicesTableLib.h>\r | |
35 | #include <Library/BaseLib.h>\r | |
83cbd279 | 36 | #include <Library/UefiLib.h>\r |
37 | #include <Library/NetLib.h>\r | |
38 | #include <Library/BaseMemoryLib.h>\r | |
39 | #include <Library/MemoryAllocationLib.h>\r | |
d8d26fb2 | 40 | #include <Library/DpcLib.h>\r |
216f7970 | 41 | #include <Library/PrintLib.h>\r |
1f6729ff | 42 | #include <Library/DevicePathLib.h>\r |
43 | #include <Library/HiiLib.h>\r | |
44 | #include <Library/UefiHiiServicesLib.h>\r | |
83cbd279 | 45 | \r |
46 | #include "Ip4Common.h"\r | |
47 | #include "Ip4Driver.h"\r | |
48 | #include "Ip4If.h"\r | |
49 | #include "Ip4Icmp.h"\r | |
50 | #include "Ip4Option.h"\r | |
51 | #include "Ip4Igmp.h"\r | |
52 | #include "Ip4Route.h"\r | |
53 | #include "Ip4Input.h"\r | |
54 | #include "Ip4Output.h"\r | |
1f6729ff | 55 | #include "Ip4Config2Impl.h"\r |
56 | #include "Ip4Config2Nv.h"\r | |
57 | #include "Ip4NvData.h"\r | |
83cbd279 | 58 | \r |
f6b7393c | 59 | #define IP4_PROTOCOL_SIGNATURE SIGNATURE_32 ('I', 'P', '4', 'P')\r |
60 | #define IP4_SERVICE_SIGNATURE SIGNATURE_32 ('I', 'P', '4', 'S')\r | |
c6bc765f | 61 | \r |
f6b7393c | 62 | //\r |
63 | // The state of IP4 protocol. It starts from UNCONFIGED. if it is\r | |
64 | // successfully configured, it goes to CONFIGED. if configure NULL\r | |
75dce340 | 65 | // is called, it becomes UNCONFIGED again. If (partly) destroyed, it\r |
66 | // becomes DESTROY.\r | |
f6b7393c | 67 | //\r |
68 | #define IP4_STATE_UNCONFIGED 0\r | |
69 | #define IP4_STATE_CONFIGED 1\r | |
75dce340 | 70 | #define IP4_STATE_DESTROY 2\r |
c6bc765f | 71 | \r |
f6b7393c | 72 | //\r |
73 | // The state of IP4 service. It starts from UNSTARTED. It transits\r | |
74 | // to STARTED if autoconfigure is started. If default address is\r | |
75dce340 | 75 | // configured, it becomes CONFIGED. and if partly destroyed, it goes\r |
76 | // to DESTROY.\r | |
f6b7393c | 77 | //\r |
78 | #define IP4_SERVICE_UNSTARTED 0\r | |
79 | #define IP4_SERVICE_STARTED 1\r | |
80 | #define IP4_SERVICE_CONFIGED 2\r | |
75dce340 | 81 | #define IP4_SERVICE_DESTROY 3\r |
83cbd279 | 82 | \r |
83cbd279 | 83 | \r |
96e1079f | 84 | ///\r |
85 | /// IP4_TXTOKEN_WRAP wraps the upper layer's transmit token.\r | |
86 | /// The user's data is kept in the Packet. When fragment is\r | |
87 | /// needed, each fragment of the Packet has a reference to the\r | |
88 | /// Packet, no data is actually copied. The Packet will be\r | |
89 | /// released when all the fragments of it have been recycled by\r | |
90 | /// MNP. Upon then, the IP4_TXTOKEN_WRAP will be released, and\r | |
91 | /// user's event signalled.\r | |
92 | ///\r | |
83cbd279 | 93 | typedef struct {\r |
94 | IP4_PROTOCOL *IpInstance;\r | |
95 | EFI_IP4_COMPLETION_TOKEN *Token;\r | |
a1503a32 | 96 | EFI_EVENT IpSecRecycleSignal;\r |
83cbd279 | 97 | NET_BUF *Packet;\r |
98 | BOOLEAN Sent;\r | |
99 | INTN Life;\r | |
100 | } IP4_TXTOKEN_WRAP;\r | |
101 | \r | |
a1503a32 | 102 | ///\r |
103 | /// IP4_IPSEC_WRAP wraps the packet received from MNP layer. The packet\r | |
104 | /// will be released after it has been processed by the receiver. Upon then,\r | |
105 | /// the IP4_IPSEC_WRAP will be released, and the IpSecRecycleSignal will be signaled\r | |
106 | /// to notice IPsec to free the resources.\r | |
107 | ///\r | |
108 | typedef struct {\r | |
109 | EFI_EVENT IpSecRecycleSignal;\r | |
110 | NET_BUF *Packet;\r | |
111 | } IP4_IPSEC_WRAP;\r | |
112 | \r | |
96e1079f | 113 | ///\r |
114 | /// IP4_RXDATA_WRAP wraps the data IP4 child delivers to the\r | |
115 | /// upper layers. The received packet is kept in the Packet.\r | |
116 | /// The Packet itself may be constructured from some fragments.\r | |
117 | /// All the fragments of the Packet is organized by a\r | |
118 | /// IP4_ASSEMBLE_ENTRY structure. If the Packet is recycled by\r | |
119 | /// the upper layer, the assemble entry and its associated\r | |
120 | /// fragments will be freed at last.\r | |
121 | ///\r | |
83cbd279 | 122 | typedef struct {\r |
e48e37fc | 123 | LIST_ENTRY Link;\r |
83cbd279 | 124 | IP4_PROTOCOL *IpInstance;\r |
125 | NET_BUF *Packet;\r | |
126 | EFI_IP4_RECEIVE_DATA RxData;\r | |
127 | } IP4_RXDATA_WRAP;\r | |
128 | \r | |
c6bc765f | 129 | \r |
130 | struct _IP4_PROTOCOL {\r | |
83cbd279 | 131 | UINT32 Signature;\r |
132 | \r | |
133 | EFI_IP4_PROTOCOL Ip4Proto;\r | |
134 | EFI_HANDLE Handle;\r | |
135 | INTN State;\r | |
136 | \r | |
137 | IP4_SERVICE *Service;\r | |
a1503a32 | 138 | LIST_ENTRY Link; // Link to all the IP protocol from the service\r |
83cbd279 | 139 | \r |
140 | //\r | |
141 | // User's transmit/receive tokens, and received/deliverd packets\r | |
142 | //\r | |
143 | NET_MAP RxTokens;\r | |
144 | NET_MAP TxTokens; // map between (User's Token, IP4_TXTOKE_WRAP)\r | |
e48e37fc | 145 | LIST_ENTRY Received; // Received but not delivered packet\r |
146 | LIST_ENTRY Delivered; // Delivered and to be recycled packets\r | |
83cbd279 | 147 | EFI_LOCK RecycleLock;\r |
148 | \r | |
149 | //\r | |
150 | // Instance's address and route tables. There are two route tables.\r | |
151 | // RouteTable is used by the IP4 driver to route packet. EfiRouteTable\r | |
152 | // is used to communicate the current route info to the upper layer.\r | |
153 | //\r | |
154 | IP4_INTERFACE *Interface;\r | |
e48e37fc | 155 | LIST_ENTRY AddrLink; // Ip instances with the same IP address.\r |
83cbd279 | 156 | IP4_ROUTE_TABLE *RouteTable;\r |
157 | \r | |
158 | EFI_IP4_ROUTE_TABLE *EfiRouteTable;\r | |
159 | UINT32 EfiRouteCount;\r | |
160 | \r | |
161 | //\r | |
162 | // IGMP data for this instance\r | |
163 | //\r | |
a1503a32 | 164 | IP4_ADDR *Groups; // stored in network byte order\r |
83cbd279 | 165 | UINT32 GroupCount;\r |
166 | \r | |
167 | EFI_IP4_CONFIG_DATA ConfigData;\r | |
168 | \r | |
c6bc765f | 169 | };\r |
83cbd279 | 170 | \r |
c6bc765f | 171 | struct _IP4_SERVICE {\r |
83cbd279 | 172 | UINT32 Signature;\r |
173 | EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;\r | |
174 | INTN State;\r | |
83cbd279 | 175 | \r |
176 | //\r | |
177 | // List of all the IP instances and interfaces, and default\r | |
178 | // interface and route table and caches.\r | |
179 | //\r | |
180 | UINTN NumChildren;\r | |
e48e37fc | 181 | LIST_ENTRY Children;\r |
83cbd279 | 182 | \r |
e48e37fc | 183 | LIST_ENTRY Interfaces;\r |
83cbd279 | 184 | \r |
185 | IP4_INTERFACE *DefaultInterface;\r | |
186 | IP4_ROUTE_TABLE *DefaultRouteTable;\r | |
187 | \r | |
188 | //\r | |
189 | // Ip reassemble utilities, and IGMP data\r | |
190 | //\r | |
191 | IP4_ASSEMBLE_TABLE Assemble;\r | |
192 | IGMP_SERVICE_DATA IgmpCtrl;\r | |
193 | \r | |
194 | //\r | |
195 | // Low level protocol used by this service instance\r | |
196 | //\r | |
197 | EFI_HANDLE Image;\r | |
198 | EFI_HANDLE Controller;\r | |
199 | \r | |
200 | EFI_HANDLE MnpChildHandle;\r | |
201 | EFI_MANAGED_NETWORK_PROTOCOL *Mnp;\r | |
202 | \r | |
203 | EFI_MANAGED_NETWORK_CONFIG_DATA MnpConfigData;\r | |
204 | EFI_SIMPLE_NETWORK_MODE SnpMode;\r | |
205 | \r | |
206 | EFI_EVENT Timer;\r | |
207 | \r | |
2c320007 JW |
208 | EFI_EVENT ReconfigEvent;\r |
209 | \r | |
e371cc14 JW |
210 | BOOLEAN Reconfig;\r |
211 | \r | |
2c320007 JW |
212 | //\r |
213 | // Underlying media present status. \r | |
214 | //\r | |
215 | BOOLEAN MediaPresent;\r | |
216 | \r | |
83cbd279 | 217 | //\r |
1f6729ff | 218 | // IPv4 Configuration II Protocol instance\r |
83cbd279 | 219 | //\r |
1f6729ff | 220 | IP4_CONFIG2_INSTANCE Ip4Config2Instance;\r |
221 | \r | |
222 | CHAR16 *MacString;\r | |
83cbd279 | 223 | \r |
a1503a32 | 224 | UINT32 MaxPacketSize;\r |
225 | UINT32 OldMaxPacketSize; ///< The MTU before IPsec enable.\r | |
c6bc765f | 226 | };\r |
83cbd279 | 227 | \r |
228 | #define IP4_INSTANCE_FROM_PROTOCOL(Ip4) \\r | |
229 | CR ((Ip4), IP4_PROTOCOL, Ip4Proto, IP4_PROTOCOL_SIGNATURE)\r | |
230 | \r | |
231 | #define IP4_SERVICE_FROM_PROTOCOL(Sb) \\r | |
232 | CR ((Sb), IP4_SERVICE, ServiceBinding, IP4_SERVICE_SIGNATURE)\r | |
233 | \r | |
1f6729ff | 234 | #define IP4_SERVICE_FROM_CONFIG2_INSTANCE(This) \\r |
235 | CR (This, IP4_SERVICE, Ip4Config2Instance, IP4_SERVICE_SIGNATURE)\r | |
236 | \r | |
237 | \r | |
83cbd279 | 238 | #define IP4_NO_MAPPING(IpInstance) (!(IpInstance)->Interface->Configured)\r |
239 | \r | |
240 | extern EFI_IP4_PROTOCOL mEfiIp4ProtocolTemplete;\r | |
241 | \r | |
2ff29212 | 242 | /**\r |
243 | Config the MNP parameter used by IP. The IP driver use one MNP\r | |
244 | child to transmit/receive frames. By default, it configures MNP\r | |
245 | to receive unicast/multicast/broadcast. And it will enable/disable\r | |
246 | the promiscous receive according to whether there is IP child\r | |
247 | enable that or not. If Force is FALSE, it will iterate through\r | |
248 | all the IP children to check whether the promiscuous receive\r | |
249 | setting has been changed. If it hasn't been changed, it won't\r | |
250 | reconfigure the MNP. If Force is TRUE, the MNP is configured no\r | |
251 | matter whether that is changed or not.\r | |
252 | \r | |
3e8c18da | 253 | @param[in] IpSb The IP4 service instance that is to be changed.\r |
254 | @param[in] Force Force the configuration or not.\r | |
2ff29212 | 255 | \r |
256 | @retval EFI_SUCCESS The MNP is successfully configured/reconfigured.\r | |
257 | @retval Others Configuration failed.\r | |
258 | \r | |
259 | **/\r | |
83cbd279 | 260 | EFI_STATUS\r |
261 | Ip4ServiceConfigMnp (\r | |
262 | IN IP4_SERVICE *IpSb,\r | |
263 | IN BOOLEAN Force\r | |
264 | );\r | |
265 | \r | |
2ff29212 | 266 | /**\r |
267 | Intiialize the IP4_PROTOCOL structure to the unconfigured states.\r | |
268 | \r | |
269 | @param IpSb The IP4 service instance.\r | |
270 | @param IpInstance The IP4 child instance.\r | |
271 | \r | |
2ff29212 | 272 | **/\r |
83cbd279 | 273 | VOID\r |
274 | Ip4InitProtocol (\r | |
2ff29212 | 275 | IN IP4_SERVICE *IpSb,\r |
276 | IN OUT IP4_PROTOCOL *IpInstance\r | |
83cbd279 | 277 | );\r |
278 | \r | |
2ff29212 | 279 | /**\r |
280 | Clean up the IP4 child, release all the resources used by it.\r | |
281 | \r | |
3e8c18da | 282 | @param[in] IpInstance The IP4 child to clean up.\r |
2ff29212 | 283 | \r |
1f6729ff | 284 | @retval EFI_SUCCESS The IP4 child is cleaned up.\r |
285 | @retval EFI_DEVICE_ERROR Some resources failed to be released.\r | |
2ff29212 | 286 | \r |
287 | **/\r | |
83cbd279 | 288 | EFI_STATUS\r |
289 | Ip4CleanProtocol (\r | |
290 | IN IP4_PROTOCOL *IpInstance\r | |
291 | );\r | |
292 | \r | |
2ff29212 | 293 | /**\r |
294 | Cancel the user's receive/transmit request.\r | |
295 | \r | |
1f6729ff | 296 | @param[in] IpInstance The IP4 child.\r |
3e8c18da | 297 | @param[in] Token The token to cancel. If NULL, all token will be\r |
2ff29212 | 298 | cancelled.\r |
299 | \r | |
1f6729ff | 300 | @retval EFI_SUCCESS The token is cancelled.\r |
2ff29212 | 301 | @retval EFI_NOT_FOUND The token isn't found on either the\r |
1f6729ff | 302 | transmit/receive queue.\r |
2ff29212 | 303 | @retval EFI_DEVICE_ERROR Not all token is cancelled when Token is NULL.\r |
304 | \r | |
305 | **/\r | |
83cbd279 | 306 | EFI_STATUS\r |
307 | Ip4Cancel (\r | |
308 | IN IP4_PROTOCOL *IpInstance,\r | |
2ff29212 | 309 | IN EFI_IP4_COMPLETION_TOKEN *Token OPTIONAL\r |
83cbd279 | 310 | );\r |
311 | \r | |
2ff29212 | 312 | /**\r |
313 | Change the IP4 child's multicast setting. The caller\r | |
314 | should make sure that the parameters is valid.\r | |
315 | \r | |
3e8c18da | 316 | @param[in] IpInstance The IP4 child to change the setting.\r |
317 | @param[in] JoinFlag TRUE to join the group, otherwise leave it\r | |
318 | @param[in] GroupAddress The target group address\r | |
2ff29212 | 319 | \r |
320 | @retval EFI_ALREADY_STARTED Want to join the group, but already a member of it\r | |
321 | @retval EFI_OUT_OF_RESOURCES Failed to allocate some resources.\r | |
322 | @retval EFI_DEVICE_ERROR Failed to set the group configuraton\r | |
323 | @retval EFI_SUCCESS Successfully updated the group setting.\r | |
324 | @retval EFI_NOT_FOUND Try to leave the group which it isn't a member.\r | |
325 | \r | |
326 | **/\r | |
83cbd279 | 327 | EFI_STATUS\r |
328 | Ip4Groups (\r | |
329 | IN IP4_PROTOCOL *IpInstance,\r | |
330 | IN BOOLEAN JoinFlag,\r | |
2ff29212 | 331 | IN EFI_IPv4_ADDRESS *GroupAddress OPTIONAL\r |
83cbd279 | 332 | );\r |
333 | \r | |
2ff29212 | 334 | /**\r |
335 | The heart beat timer of IP4 service instance. It times out\r | |
336 | all of its IP4 children's received-but-not-delivered and\r | |
337 | transmitted-but-not-recycle packets, and provides time input\r | |
338 | for its IGMP protocol.\r | |
339 | \r | |
3e8c18da | 340 | @param[in] Event The IP4 service instance's heart beat timer.\r |
341 | @param[in] Context The IP4 service instance.\r | |
2ff29212 | 342 | \r |
343 | **/\r | |
83cbd279 | 344 | VOID\r |
345 | EFIAPI\r | |
346 | Ip4TimerTicking (\r | |
347 | IN EFI_EVENT Event,\r | |
348 | IN VOID *Context\r | |
349 | );\r | |
350 | \r | |
2ff29212 | 351 | /**\r |
352 | Decrease the life of the transmitted packets. If it is\r | |
353 | decreased to zero, cancel the packet. This function is\r | |
354 | called by Ip4PacketTimerTicking which time out both the\r | |
355 | received-but-not-delivered and transmitted-but-not-recycle\r | |
356 | packets.\r | |
357 | \r | |
3e8c18da | 358 | @param[in] Map The IP4 child's transmit map.\r |
1f6729ff | 359 | @param[in] Item Current transmitted packet.\r |
3e8c18da | 360 | @param[in] Context Not used.\r |
2ff29212 | 361 | \r |
1f6729ff | 362 | @retval EFI_SUCCESS Always returns EFI_SUCCESS.\r |
2ff29212 | 363 | \r |
364 | **/\r | |
83cbd279 | 365 | EFI_STATUS\r |
e798cd87 | 366 | EFIAPI\r |
83cbd279 | 367 | Ip4SentPacketTicking (\r |
368 | IN NET_MAP *Map,\r | |
369 | IN NET_MAP_ITEM *Item,\r | |
370 | IN VOID *Context\r | |
371 | );\r | |
a1503a32 | 372 | \r |
373 | /**\r | |
374 | The callback function for the net buffer which wraps the user's\r | |
375 | transmit token. Although it seems this function is pretty simple,\r | |
376 | there are some subtle things.\r | |
377 | When user requests the IP to transmit a packet by passing it a\r | |
378 | token, the token is wrapped in an IP4_TXTOKEN_WRAP and the data\r | |
379 | is wrapped in an net buffer. the net buffer's Free function is\r | |
380 | set to Ip4FreeTxToken. The Token and token wrap are added to the\r | |
381 | IP child's TxToken map. Then the buffer is passed to Ip4Output for\r | |
382 | transmission. If something error happened before that, the buffer\r | |
383 | is freed, which in turn will free the token wrap. The wrap may\r | |
384 | have been added to the TxToken map or not, and the user's event\r | |
385 | shouldn't be fired because we are still in the EfiIp4Transmit. If\r | |
386 | the buffer has been sent by Ip4Output, it should be removed from\r | |
387 | the TxToken map and user's event signaled. The token wrap and buffer\r | |
388 | are bound together. Check the comments in Ip4Output for information\r | |
389 | about IP fragmentation.\r | |
390 | \r | |
1f6729ff | 391 | @param[in] Context The token's wrap.\r |
a1503a32 | 392 | \r |
393 | **/\r | |
394 | VOID\r | |
e798cd87 | 395 | EFIAPI\r |
a1503a32 | 396 | Ip4FreeTxToken (\r |
397 | IN VOID *Context\r | |
398 | );\r | |
399 | \r | |
705f53a9 | 400 | extern EFI_IPSEC2_PROTOCOL *mIpSec;\r |
c79de074 | 401 | extern BOOLEAN mIpSec2Installed;\r |
a1503a32 | 402 | \r |
83cbd279 | 403 | #endif\r |