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1 | /** @file\r | |
2 | Ihis library is only intended to be used by UEFI network stack modules.\r | |
3 | It provides basic functions for the UEFI network stack.\r | |
4 | \r | |
5 | Copyright (c) 2005 - 2009, Intel Corporation\r | |
6 | All rights reserved. This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #ifndef _NET_LIB_H_\r | |
17 | #define _NET_LIB_H_\r | |
18 | \r | |
19 | #include <Protocol/Ip6.h>\r | |
20 | \r | |
21 | typedef UINT32 IP4_ADDR;\r | |
22 | typedef UINT32 TCP_SEQNO;\r | |
23 | typedef UINT16 TCP_PORTNO;\r | |
24 | \r | |
25 | \r | |
26 | #define NET_ETHER_ADDR_LEN 6\r | |
27 | #define NET_IFTYPE_ETHERNET 0x01\r | |
28 | \r | |
29 | #define EFI_IP_PROTO_UDP 0x11\r | |
30 | #define EFI_IP_PROTO_TCP 0x06\r | |
31 | #define EFI_IP_PROTO_ICMP 0x01\r | |
32 | #define IP4_PROTO_IGMP 0x02\r | |
33 | #define IP6_ICMP 58\r | |
34 | \r | |
35 | //\r | |
36 | // The address classification\r | |
37 | //\r | |
38 | #define IP4_ADDR_CLASSA 1\r | |
39 | #define IP4_ADDR_CLASSB 2\r | |
40 | #define IP4_ADDR_CLASSC 3\r | |
41 | #define IP4_ADDR_CLASSD 4\r | |
42 | #define IP4_ADDR_CLASSE 5\r | |
43 | \r | |
44 | #define IP4_MASK_NUM 33\r | |
45 | #define IP6_PREFIX_NUM 129\r | |
46 | \r | |
47 | #define IP6_HOP_BY_HOP 0\r | |
48 | #define IP6_DESTINATION 60\r | |
49 | #define IP6_FRAGMENT 44\r | |
50 | #define IP6_AH 51\r | |
51 | #define IP6_ESP 50\r | |
52 | #define IP6_NO_NEXT_HEADER 59\r | |
53 | \r | |
54 | #define IP_VERSION_4 4\r | |
55 | #define IP_VERSION_6 6\r | |
56 | \r | |
57 | #pragma pack(1)\r | |
58 | \r | |
59 | //\r | |
60 | // Ethernet head definition\r | |
61 | //\r | |
62 | typedef struct {\r | |
63 | UINT8 DstMac [NET_ETHER_ADDR_LEN];\r | |
64 | UINT8 SrcMac [NET_ETHER_ADDR_LEN];\r | |
65 | UINT16 EtherType;\r | |
66 | } ETHER_HEAD;\r | |
67 | \r | |
68 | \r | |
69 | //\r | |
70 | // The EFI_IP4_HEADER is hard to use because the source and\r | |
71 | // destination address are defined as EFI_IPv4_ADDRESS, which\r | |
72 | // is a structure. Two structures can't be compared or masked\r | |
73 | // directly. This is why there is an internal representation.\r | |
74 | //\r | |
75 | typedef struct {\r | |
76 | UINT8 HeadLen : 4;\r | |
77 | UINT8 Ver : 4;\r | |
78 | UINT8 Tos;\r | |
79 | UINT16 TotalLen;\r | |
80 | UINT16 Id;\r | |
81 | UINT16 Fragment;\r | |
82 | UINT8 Ttl;\r | |
83 | UINT8 Protocol;\r | |
84 | UINT16 Checksum;\r | |
85 | IP4_ADDR Src;\r | |
86 | IP4_ADDR Dst;\r | |
87 | } IP4_HEAD;\r | |
88 | \r | |
89 | \r | |
90 | //\r | |
91 | // ICMP head definition. Each ICMP message is categorized as either an error\r | |
92 | // message or query message. Two message types have their own head format.\r | |
93 | //\r | |
94 | typedef struct {\r | |
95 | UINT8 Type;\r | |
96 | UINT8 Code;\r | |
97 | UINT16 Checksum;\r | |
98 | } IP4_ICMP_HEAD;\r | |
99 | \r | |
100 | typedef struct {\r | |
101 | IP4_ICMP_HEAD Head;\r | |
102 | UINT32 Fourth; // 4th filed of the head, it depends on Type.\r | |
103 | IP4_HEAD IpHead;\r | |
104 | } IP4_ICMP_ERROR_HEAD;\r | |
105 | \r | |
106 | typedef struct {\r | |
107 | IP4_ICMP_HEAD Head;\r | |
108 | UINT16 Id;\r | |
109 | UINT16 Seq;\r | |
110 | } IP4_ICMP_QUERY_HEAD;\r | |
111 | \r | |
112 | typedef struct {\r | |
113 | UINT8 Type;\r | |
114 | UINT8 Code;\r | |
115 | UINT16 Checksum;\r | |
116 | } IP6_ICMP_HEAD;\r | |
117 | \r | |
118 | typedef struct {\r | |
119 | IP6_ICMP_HEAD Head;\r | |
120 | UINT32 Fourth;\r | |
121 | EFI_IP6_HEADER IpHead;\r | |
122 | } IP6_ICMP_ERROR_HEAD;\r | |
123 | \r | |
124 | typedef struct {\r | |
125 | IP6_ICMP_HEAD Head;\r | |
126 | UINT32 Fourth;\r | |
127 | } IP6_ICMP_INFORMATION_HEAD;\r | |
128 | \r | |
129 | //\r | |
130 | // UDP header definition\r | |
131 | //\r | |
132 | typedef struct {\r | |
133 | UINT16 SrcPort;\r | |
134 | UINT16 DstPort;\r | |
135 | UINT16 Length;\r | |
136 | UINT16 Checksum;\r | |
137 | } EFI_UDP_HEADER;\r | |
138 | \r | |
139 | //\r | |
140 | // TCP header definition\r | |
141 | //\r | |
142 | typedef struct {\r | |
143 | TCP_PORTNO SrcPort;\r | |
144 | TCP_PORTNO DstPort;\r | |
145 | TCP_SEQNO Seq;\r | |
146 | TCP_SEQNO Ack;\r | |
147 | UINT8 Res : 4;\r | |
148 | UINT8 HeadLen : 4;\r | |
149 | UINT8 Flag;\r | |
150 | UINT16 Wnd;\r | |
151 | UINT16 Checksum;\r | |
152 | UINT16 Urg;\r | |
153 | } TCP_HEAD;\r | |
154 | \r | |
155 | #pragma pack()\r | |
156 | \r | |
157 | #define NET_MAC_EQUAL(pMac1, pMac2, Len) \\r | |
158 | (CompareMem ((pMac1), (pMac2), Len) == 0)\r | |
159 | \r | |
160 | #define NET_MAC_IS_MULTICAST(Mac, BMac, Len) \\r | |
161 | (((*((UINT8 *) Mac) & 0x01) == 0x01) && (!NET_MAC_EQUAL (Mac, BMac, Len)))\r | |
162 | \r | |
163 | #define NTOHL(x) (UINT32)((((UINT32) (x) & 0xff) << 24) | \\r | |
164 | (((UINT32) (x) & 0xff00) << 8) | \\r | |
165 | (((UINT32) (x) & 0xff0000) >> 8) | \\r | |
166 | (((UINT32) (x) & 0xff000000) >> 24))\r | |
167 | \r | |
168 | #define HTONL(x) NTOHL(x)\r | |
169 | \r | |
170 | #define NTOHS(x) (UINT16)((((UINT16) (x) & 0xff) << 8) | \\r | |
171 | (((UINT16) (x) & 0xff00) >> 8))\r | |
172 | \r | |
173 | #define HTONS(x) NTOHS(x)\r | |
174 | #define NTOHLL(x) SwapBytes64 (x)\r | |
175 | #define HTONLL(x) NTOHLL(x)\r | |
176 | #define NTOHLLL(x) Ip6Swap128 (x)\r | |
177 | #define HTONLLL(x) NTOHLLL(x)\r | |
178 | \r | |
179 | //\r | |
180 | // Test the IP's attribute, All the IPs are in host byte order.\r | |
181 | //\r | |
182 | #define IP4_IS_MULTICAST(Ip) (((Ip) & 0xF0000000) == 0xE0000000)\r | |
183 | #define IP4_IS_LOCAL_BROADCAST(Ip) ((Ip) == 0xFFFFFFFF)\r | |
184 | #define IP4_NET_EQUAL(Ip1, Ip2, NetMask) (((Ip1) & (NetMask)) == ((Ip2) & (NetMask)))\r | |
185 | #define IP4_IS_VALID_NETMASK(Ip) (NetGetMaskLength (Ip) != IP4_MASK_NUM)\r | |
186 | \r | |
187 | #define IP6_IS_MULTICAST(Ip6) (((Ip6)->Addr[0]) == 0xFF)\r | |
188 | \r | |
189 | //\r | |
190 | // Convert the EFI_IP4_ADDRESS to plain UINT32 IP4 address.\r | |
191 | //\r | |
192 | #define EFI_IP4(EfiIpAddr) (*(IP4_ADDR *) ((EfiIpAddr).Addr))\r | |
193 | #define EFI_NTOHL(EfiIp) (NTOHL (EFI_IP4 ((EfiIp))))\r | |
194 | #define EFI_IP4_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv4_ADDRESS)) == 0)\r | |
195 | \r | |
196 | #define EFI_IP6_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv6_ADDRESS)) == 0)\r | |
197 | \r | |
198 | #define IP6_COPY_ADDRESS(Dest, Src) (CopyMem ((Dest), (Src), sizeof (EFI_IPv6_ADDRESS)))\r | |
199 | #define IP6_COPY_LINK_ADDRESS(Mac1, Mac2) (CopyMem ((Mac1), (Mac2), sizeof (EFI_MAC_ADDRESS)))\r | |
200 | \r | |
201 | //\r | |
202 | // The debug level definition. This value is also used as the \r | |
203 | // syslog's servity level. Don't change it. \r | |
204 | //\r | |
205 | #define NETDEBUG_LEVEL_TRACE 5\r | |
206 | #define NETDEBUG_LEVEL_WARNING 4\r | |
207 | #define NETDEBUG_LEVEL_ERROR 3\r | |
208 | \r | |
209 | //\r | |
210 | // Network debug message is sent out as syslog packet. \r | |
211 | //\r | |
212 | #define NET_SYSLOG_FACILITY 16 // Syslog local facility local use\r | |
213 | #define NET_SYSLOG_PACKET_LEN 512 \r | |
214 | #define NET_SYSLOG_TX_TIMEOUT 500 *1000 *10 // 500ms\r | |
215 | #define NET_DEBUG_MSG_LEN 470 // 512 - (ether+ip4+udp4 head length)\r | |
216 | \r | |
217 | //\r | |
218 | // The debug output expects the ASCII format string, Use %a to print ASCII \r | |
219 | // string, and %s to print UNICODE string. PrintArg must be enclosed in (). \r | |
220 | // For example: NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name));\r | |
221 | //\r | |
222 | #define NET_DEBUG_TRACE(Module, PrintArg) \\r | |
223 | NetDebugOutput ( \\r | |
224 | NETDEBUG_LEVEL_TRACE, \\r | |
225 | Module, \\r | |
226 | __FILE__, \\r | |
227 | __LINE__, \\r | |
228 | NetDebugASPrint PrintArg \\r | |
229 | )\r | |
230 | \r | |
231 | #define NET_DEBUG_WARNING(Module, PrintArg) \\r | |
232 | NetDebugOutput ( \\r | |
233 | NETDEBUG_LEVEL_WARNING, \\r | |
234 | Module, \\r | |
235 | __FILE__, \\r | |
236 | __LINE__, \\r | |
237 | NetDebugASPrint PrintArg \\r | |
238 | )\r | |
239 | \r | |
240 | #define NET_DEBUG_ERROR(Module, PrintArg) \\r | |
241 | NetDebugOutput ( \\r | |
242 | NETDEBUG_LEVEL_ERROR, \\r | |
243 | Module, \\r | |
244 | __FILE__, \\r | |
245 | __LINE__, \\r | |
246 | NetDebugASPrint PrintArg \\r | |
247 | )\r | |
248 | \r | |
249 | /**\r | |
250 | Allocate a buffer, then format the message to it. This is a \r | |
251 | help function for the NET_DEBUG_XXX macros. The PrintArg of \r | |
252 | these macros treats the variable length print parameters as a \r | |
253 | single parameter, and pass it to the NetDebugASPrint. For\r | |
254 | example, NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name))\r | |
255 | if extracted to: \r | |
256 | \r | |
257 | NetDebugOutput (\r | |
258 | NETDEBUG_LEVEL_TRACE, \r | |
259 | "Tcp", \r | |
260 | __FILE__,\r | |
261 | __LINE__,\r | |
262 | NetDebugASPrint ("State transit to %a\n", Name) \r | |
263 | ) \r | |
264 | \r | |
265 | @param Format The ASCII format string.\r | |
266 | @param ... The variable length parameter whose format is determined \r | |
267 | by the Format string.\r | |
268 | \r | |
269 | @return The buffer containing the formatted message,\r | |
270 | or NULL if failed to allocate memory.\r | |
271 | \r | |
272 | **/\r | |
273 | CHAR8 *\r | |
274 | NetDebugASPrint (\r | |
275 | IN CHAR8 *Format,\r | |
276 | ...\r | |
277 | );\r | |
278 | \r | |
279 | /**\r | |
280 | Builds an UDP4 syslog packet and send it using SNP.\r | |
281 | \r | |
282 | This function will locate a instance of SNP then send the message through it.\r | |
283 | Because it isn't open the SNP BY_DRIVER, apply caution when using it.\r | |
284 | \r | |
285 | @param Level The servity level of the message.\r | |
286 | @param Module The Moudle that generates the log.\r | |
287 | @param File The file that contains the log.\r | |
288 | @param Line The exact line that contains the log.\r | |
289 | @param Message The user message to log.\r | |
290 | \r | |
291 | @retval EFI_INVALID_PARAMETER Any input parameter is invalid.\r | |
292 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the packet\r | |
293 | @retval EFI_SUCCESS The log is discard because that it is more verbose \r | |
294 | than the mNetDebugLevelMax. Or, it has been sent out.\r | |
295 | **/ \r | |
296 | EFI_STATUS\r | |
297 | NetDebugOutput (\r | |
298 | IN UINT32 Level, \r | |
299 | IN UINT8 *Module,\r | |
300 | IN UINT8 *File,\r | |
301 | IN UINT32 Line,\r | |
302 | IN UINT8 *Message\r | |
303 | );\r | |
304 | \r | |
305 | \r | |
306 | /**\r | |
307 | Return the length of the mask. \r | |
308 | \r | |
309 | Return the length of the mask. Valid values are 0 to 32.\r | |
310 | If the mask is invalid, return the invalid length 33, which is IP4_MASK_NUM.\r | |
311 | NetMask is in the host byte order.\r | |
312 | \r | |
313 | @param[in] NetMask The netmask to get the length from.\r | |
314 | \r | |
315 | @return The length of the netmask, or IP4_MASK_NUM (33) if the mask is invalid.\r | |
316 | \r | |
317 | **/\r | |
318 | INTN\r | |
319 | EFIAPI\r | |
320 | NetGetMaskLength (\r | |
321 | IN IP4_ADDR NetMask\r | |
322 | );\r | |
323 | \r | |
324 | /**\r | |
325 | Return the class of the IP address, such as class A, B, C.\r | |
326 | Addr is in host byte order.\r | |
327 | \r | |
328 | The address of class A starts with 0.\r | |
329 | If the address belong to class A, return IP4_ADDR_CLASSA.\r | |
330 | The address of class B starts with 10. \r | |
331 | If the address belong to class B, return IP4_ADDR_CLASSB.\r | |
332 | The address of class C starts with 110. \r | |
333 | If the address belong to class C, return IP4_ADDR_CLASSC.\r | |
334 | The address of class D starts with 1110. \r | |
335 | If the address belong to class D, return IP4_ADDR_CLASSD.\r | |
336 | The address of class E starts with 1111.\r | |
337 | If the address belong to class E, return IP4_ADDR_CLASSE.\r | |
338 | \r | |
339 | \r | |
340 | @param[in] Addr The address to get the class from.\r | |
341 | \r | |
342 | @return IP address class, such as IP4_ADDR_CLASSA.\r | |
343 | \r | |
344 | **/\r | |
345 | INTN\r | |
346 | EFIAPI\r | |
347 | NetGetIpClass (\r | |
348 | IN IP4_ADDR Addr\r | |
349 | );\r | |
350 | \r | |
351 | /**\r | |
352 | Check whether the IP is a valid unicast address according to\r | |
353 | the netmask. If NetMask is zero, use the IP address's class to get the default mask.\r | |
354 | \r | |
355 | If Ip is 0, IP is not a valid unicast address.\r | |
356 | Class D address is used for multicasting and class E address is reserved for future. If Ip\r | |
357 | belongs to class D or class E, Ip is not a valid unicast address. \r | |
358 | If all bits of the host address of Ip are 0 or 1, Ip is not a valid unicast address.\r | |
359 | \r | |
360 | @param[in] Ip The IP to check against.\r | |
361 | @param[in] NetMask The mask of the IP.\r | |
362 | \r | |
363 | @return TRUE if Ip is a valid unicast address on the network, otherwise FALSE.\r | |
364 | \r | |
365 | **/\r | |
366 | BOOLEAN\r | |
367 | EFIAPI\r | |
368 | NetIp4IsUnicast (\r | |
369 | IN IP4_ADDR Ip,\r | |
370 | IN IP4_ADDR NetMask\r | |
371 | );\r | |
372 | \r | |
373 | /**\r | |
374 | Check whether the incoming IPv6 address is a valid unicast address.\r | |
375 | \r | |
376 | If the address is a multicast address has binary 0xFF at the start, it is not\r | |
377 | a valid unicast address. If the address is unspecified ::, it is not a valid\r | |
378 | unicast address to be assigned to any node. If the address is loopback address\r | |
379 | ::1, it is also not a valid unicast address to be assigned to any physical\r | |
380 | interface. \r | |
381 | \r | |
382 | @param[in] Ip6 The IPv6 address to check against.\r | |
383 | \r | |
384 | @return TRUE if Ip6 is a valid unicast address on the network, otherwise FALSE.\r | |
385 | \r | |
386 | **/ \r | |
387 | BOOLEAN\r | |
388 | NetIp6IsValidUnicast (\r | |
389 | IN EFI_IPv6_ADDRESS *Ip6\r | |
390 | );\r | |
391 | \r | |
392 | \r | |
393 | /**\r | |
394 | Check whether the incoming Ipv6 address is the unspecified address or not.\r | |
395 | \r | |
396 | @param[in] Ip6 - Ip6 address, in network order.\r | |
397 | \r | |
398 | @retval TRUE - Yes, unspecified\r | |
399 | @retval FALSE - No\r | |
400 | \r | |
401 | **/\r | |
402 | BOOLEAN\r | |
403 | NetIp6IsUnspecifiedAddr (\r | |
404 | IN EFI_IPv6_ADDRESS *Ip6\r | |
405 | );\r | |
406 | \r | |
407 | /**\r | |
408 | Check whether the incoming Ipv6 address is a link-local address.\r | |
409 | \r | |
410 | @param[in] Ip6 - Ip6 address, in network order.\r | |
411 | \r | |
412 | @retval TRUE - Yes, link-local address\r | |
413 | @retval FALSE - No\r | |
414 | \r | |
415 | **/\r | |
416 | BOOLEAN\r | |
417 | NetIp6IsLinkLocalAddr (\r | |
418 | IN EFI_IPv6_ADDRESS *Ip6\r | |
419 | );\r | |
420 | \r | |
421 | /**\r | |
422 | Check whether the Ipv6 address1 and address2 are on the connected network.\r | |
423 | \r | |
424 | @param[in] Ip1 - Ip6 address1, in network order.\r | |
425 | @param[in] Ip2 - Ip6 address2, in network order.\r | |
426 | @param[in] PrefixLength - The prefix length of the checking net.\r | |
427 | \r | |
428 | @retval TRUE - Yes, connected.\r | |
429 | @retval FALSE - No.\r | |
430 | \r | |
431 | **/\r | |
432 | BOOLEAN\r | |
433 | NetIp6IsNetEqual (\r | |
434 | EFI_IPv6_ADDRESS *Ip1,\r | |
435 | EFI_IPv6_ADDRESS *Ip2,\r | |
436 | UINT8 PrefixLength\r | |
437 | );\r | |
438 | \r | |
439 | /**\r | |
440 | Switches the endianess of an IPv6 address\r | |
441 | \r | |
442 | This function swaps the bytes in a 128-bit IPv6 address to switch the value\r | |
443 | from little endian to big endian or vice versa. The byte swapped value is\r | |
444 | returned.\r | |
445 | \r | |
446 | @param Ip6 Points to an IPv6 address\r | |
447 | \r | |
448 | @return The byte swapped IPv6 address.\r | |
449 | \r | |
450 | **/\r | |
451 | EFI_IPv6_ADDRESS *\r | |
452 | Ip6Swap128 (\r | |
453 | EFI_IPv6_ADDRESS *Ip6\r | |
454 | );\r | |
455 | \r | |
456 | extern IP4_ADDR gIp4AllMasks[IP4_MASK_NUM];\r | |
457 | \r | |
458 | \r | |
459 | extern EFI_IPv4_ADDRESS mZeroIp4Addr;\r | |
460 | \r | |
461 | #define NET_IS_DIGIT(Ch) (('0' <= (Ch)) && ((Ch) <= '9'))\r | |
462 | #define NET_ROUNDUP(size, unit) (((size) + (unit) - 1) & (~((unit) - 1)))\r | |
463 | #define NET_IS_LOWER_CASE_CHAR(Ch) (('a' <= (Ch)) && ((Ch) <= 'z'))\r | |
464 | #define NET_IS_UPPER_CASE_CHAR(Ch) (('A' <= (Ch)) && ((Ch) <= 'Z'))\r | |
465 | \r | |
466 | #define TICKS_PER_MS 10000U\r | |
467 | #define TICKS_PER_SECOND 10000000U\r | |
468 | \r | |
469 | #define NET_RANDOM(Seed) ((UINT32) ((UINT32) (Seed) * 1103515245UL + 12345) % 4294967295UL)\r | |
470 | \r | |
471 | /**\r | |
472 | Extract a UINT32 from a byte stream.\r | |
473 | \r | |
474 | This function copies a UINT32 from a byte stream, and then converts it from Network \r | |
475 | byte order to host byte order. Use this function to avoid alignment error.\r | |
476 | \r | |
477 | @param[in] Buf The buffer to extract the UINT32.\r | |
478 | \r | |
479 | @return The UINT32 extracted.\r | |
480 | \r | |
481 | **/\r | |
482 | UINT32\r | |
483 | EFIAPI\r | |
484 | NetGetUint32 (\r | |
485 | IN UINT8 *Buf\r | |
486 | );\r | |
487 | \r | |
488 | /**\r | |
489 | Puts a UINT32 into the byte stream in network byte order. \r | |
490 | \r | |
491 | Converts a UINT32 from host byte order to network byte order, and then copies it to the \r | |
492 | byte stream.\r | |
493 | \r | |
494 | @param[in, out] Buf The buffer to put the UINT32.\r | |
495 | @param[in] Data The data to put.\r | |
496 | \r | |
497 | **/\r | |
498 | VOID\r | |
499 | EFIAPI\r | |
500 | NetPutUint32 (\r | |
501 | IN OUT UINT8 *Buf,\r | |
502 | IN UINT32 Data\r | |
503 | );\r | |
504 | \r | |
505 | /**\r | |
506 | Initialize a random seed using current time.\r | |
507 | \r | |
508 | Get current time first. Then initialize a random seed based on some basic \r | |
509 | mathematical operations on the hour, day, minute, second, nanosecond and year \r | |
510 | of the current time.\r | |
511 | \r | |
512 | @return The random seed, initialized with current time.\r | |
513 | \r | |
514 | **/\r | |
515 | UINT32\r | |
516 | EFIAPI\r | |
517 | NetRandomInitSeed (\r | |
518 | VOID\r | |
519 | );\r | |
520 | \r | |
521 | \r | |
522 | #define NET_LIST_USER_STRUCT(Entry, Type, Field) \\r | |
523 | BASE_CR(Entry, Type, Field)\r | |
524 | \r | |
525 | #define NET_LIST_USER_STRUCT_S(Entry, Type, Field, Sig) \\r | |
526 | CR(Entry, Type, Field, Sig)\r | |
527 | \r | |
528 | //\r | |
529 | // Iterate through the double linked list. It is NOT delete safe\r | |
530 | //\r | |
531 | #define NET_LIST_FOR_EACH(Entry, ListHead) \\r | |
532 | for(Entry = (ListHead)->ForwardLink; Entry != (ListHead); Entry = Entry->ForwardLink)\r | |
533 | \r | |
534 | //\r | |
535 | // Iterate through the double linked list. This is delete-safe.\r | |
536 | // Don't touch NextEntry. Also, don't use this macro if list\r | |
537 | // entries other than the Entry may be deleted when processing\r | |
538 | // the current Entry.\r | |
539 | //\r | |
540 | #define NET_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \\r | |
541 | for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink; \\r | |
542 | Entry != (ListHead); \\r | |
543 | Entry = NextEntry, NextEntry = Entry->ForwardLink \\r | |
544 | )\r | |
545 | \r | |
546 | //\r | |
547 | // Make sure the list isn't empty before getting the first/last record.\r | |
548 | //\r | |
549 | #define NET_LIST_HEAD(ListHead, Type, Field) \\r | |
550 | NET_LIST_USER_STRUCT((ListHead)->ForwardLink, Type, Field)\r | |
551 | \r | |
552 | #define NET_LIST_TAIL(ListHead, Type, Field) \\r | |
553 | NET_LIST_USER_STRUCT((ListHead)->BackLink, Type, Field)\r | |
554 | \r | |
555 | \r | |
556 | /**\r | |
557 | Remove the first node entry on the list, and return the removed node entry.\r | |
558 | \r | |
559 | Removes the first node entry from a doubly linked list. It is up to the caller of\r | |
560 | this function to release the memory used by the first node, if that is required. On\r | |
561 | exit, the removed node is returned. \r | |
562 | \r | |
563 | If Head is NULL, then ASSERT().\r | |
564 | If Head was not initialized, then ASSERT().\r | |
565 | If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r | |
566 | linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r | |
567 | then ASSERT(). \r | |
568 | \r | |
569 | @param[in, out] Head The list header.\r | |
570 | \r | |
571 | @return The first node entry that is removed from the list, NULL if the list is empty.\r | |
572 | \r | |
573 | **/\r | |
574 | LIST_ENTRY *\r | |
575 | EFIAPI\r | |
576 | NetListRemoveHead (\r | |
577 | IN OUT LIST_ENTRY *Head\r | |
578 | );\r | |
579 | \r | |
580 | /**\r | |
581 | Remove the last node entry on the list and return the removed node entry.\r | |
582 | \r | |
583 | Removes the last node entry from a doubly linked list. It is up to the caller of\r | |
584 | this function to release the memory used by the first node, if that is required. On\r | |
585 | exit, the removed node is returned. \r | |
586 | \r | |
587 | If Head is NULL, then ASSERT().\r | |
588 | If Head was not initialized, then ASSERT().\r | |
589 | If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r | |
590 | linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r | |
591 | then ASSERT(). \r | |
592 | \r | |
593 | @param[in, out] Head The list head.\r | |
594 | \r | |
595 | @return The last node entry that is removed from the list, NULL if the list is empty.\r | |
596 | \r | |
597 | **/\r | |
598 | LIST_ENTRY *\r | |
599 | EFIAPI\r | |
600 | NetListRemoveTail (\r | |
601 | IN OUT LIST_ENTRY *Head\r | |
602 | );\r | |
603 | \r | |
604 | /**\r | |
605 | Insert a new node entry after a designated node entry of a doubly linked list.\r | |
606 | \r | |
607 | Inserts a new node entry designated by NewEntry after the node entry designated by PrevEntry\r | |
608 | of the doubly linked list.\r | |
609 | \r | |
610 | @param[in, out] PrevEntry The entry after which to insert. \r | |
611 | @param[in, out] NewEntry The new entry to insert.\r | |
612 | \r | |
613 | **/\r | |
614 | VOID\r | |
615 | EFIAPI\r | |
616 | NetListInsertAfter (\r | |
617 | IN OUT LIST_ENTRY *PrevEntry,\r | |
618 | IN OUT LIST_ENTRY *NewEntry\r | |
619 | );\r | |
620 | \r | |
621 | /**\r | |
622 | Insert a new node entry before a designated node entry of a doubly linked list.\r | |
623 | \r | |
624 | Inserts a new node entry designated by NewEntry before the node entry designated by PostEntry\r | |
625 | of the doubly linked list.\r | |
626 | \r | |
627 | @param[in, out] PostEntry The entry to insert before.\r | |
628 | @param[in, out] NewEntry The new entry to insert.\r | |
629 | \r | |
630 | **/\r | |
631 | VOID\r | |
632 | EFIAPI\r | |
633 | NetListInsertBefore (\r | |
634 | IN OUT LIST_ENTRY *PostEntry,\r | |
635 | IN OUT LIST_ENTRY *NewEntry\r | |
636 | );\r | |
637 | \r | |
638 | \r | |
639 | //\r | |
640 | // Object container: EFI network stack spec defines various kinds of\r | |
641 | // tokens. The drivers can share code to manage those objects.\r | |
642 | //\r | |
643 | typedef struct {\r | |
644 | LIST_ENTRY Link;\r | |
645 | VOID *Key;\r | |
646 | VOID *Value;\r | |
647 | } NET_MAP_ITEM;\r | |
648 | \r | |
649 | typedef struct {\r | |
650 | LIST_ENTRY Used;\r | |
651 | LIST_ENTRY Recycled;\r | |
652 | UINTN Count;\r | |
653 | } NET_MAP;\r | |
654 | \r | |
655 | #define NET_MAP_INCREAMENT 64\r | |
656 | \r | |
657 | /**\r | |
658 | Initialize the netmap. Netmap is a reposity to keep the <Key, Value> pairs.\r | |
659 | \r | |
660 | Initialize the forward and backward links of two head nodes donated by Map->Used \r | |
661 | and Map->Recycled of two doubly linked lists.\r | |
662 | Initializes the count of the <Key, Value> pairs in the netmap to zero.\r | |
663 | \r | |
664 | If Map is NULL, then ASSERT().\r | |
665 | If the address of Map->Used is NULL, then ASSERT().\r | |
666 | If the address of Map->Recycled is NULl, then ASSERT().\r | |
667 | \r | |
668 | @param[in, out] Map The netmap to initialize.\r | |
669 | \r | |
670 | **/\r | |
671 | VOID\r | |
672 | EFIAPI\r | |
673 | NetMapInit (\r | |
674 | IN OUT NET_MAP *Map\r | |
675 | );\r | |
676 | \r | |
677 | /**\r | |
678 | To clean up the netmap, that is, release allocated memories.\r | |
679 | \r | |
680 | Removes all nodes of the Used doubly linked list and frees memory of all related netmap items.\r | |
681 | Removes all nodes of the Recycled doubly linked list and free memory of all related netmap items.\r | |
682 | The number of the <Key, Value> pairs in the netmap is set to zero.\r | |
683 | \r | |
684 | If Map is NULL, then ASSERT().\r | |
685 | \r | |
686 | @param[in, out] Map The netmap to clean up.\r | |
687 | \r | |
688 | **/\r | |
689 | VOID\r | |
690 | EFIAPI\r | |
691 | NetMapClean (\r | |
692 | IN OUT NET_MAP *Map\r | |
693 | );\r | |
694 | \r | |
695 | /**\r | |
696 | Test whether the netmap is empty and return true if it is.\r | |
697 | \r | |
698 | If the number of the <Key, Value> pairs in the netmap is zero, return TRUE.\r | |
699 | \r | |
700 | If Map is NULL, then ASSERT().\r | |
701 | \r | |
702 | \r | |
703 | @param[in] Map The net map to test.\r | |
704 | \r | |
705 | @return TRUE if the netmap is empty, otherwise FALSE.\r | |
706 | \r | |
707 | **/\r | |
708 | BOOLEAN\r | |
709 | EFIAPI\r | |
710 | NetMapIsEmpty (\r | |
711 | IN NET_MAP *Map\r | |
712 | );\r | |
713 | \r | |
714 | /**\r | |
715 | Return the number of the <Key, Value> pairs in the netmap.\r | |
716 | \r | |
717 | @param[in] Map The netmap to get the entry number.\r | |
718 | \r | |
719 | @return The entry number in the netmap.\r | |
720 | \r | |
721 | **/\r | |
722 | UINTN\r | |
723 | EFIAPI\r | |
724 | NetMapGetCount (\r | |
725 | IN NET_MAP *Map\r | |
726 | );\r | |
727 | \r | |
728 | /**\r | |
729 | Allocate an item to save the <Key, Value> pair to the head of the netmap.\r | |
730 | \r | |
731 | Allocate an item to save the <Key, Value> pair and add corresponding node entry\r | |
732 | to the beginning of the Used doubly linked list. The number of the <Key, Value> \r | |
733 | pairs in the netmap increase by 1.\r | |
734 | \r | |
735 | If Map is NULL, then ASSERT().\r | |
736 | \r | |
737 | @param[in, out] Map The netmap to insert into.\r | |
738 | @param[in] Key The user's key.\r | |
739 | @param[in] Value The user's value for the key.\r | |
740 | \r | |
741 | @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r | |
742 | @retval EFI_SUCCESS The item is inserted to the head.\r | |
743 | \r | |
744 | **/\r | |
745 | EFI_STATUS\r | |
746 | EFIAPI\r | |
747 | NetMapInsertHead (\r | |
748 | IN OUT NET_MAP *Map,\r | |
749 | IN VOID *Key,\r | |
750 | IN VOID *Value OPTIONAL\r | |
751 | );\r | |
752 | \r | |
753 | /**\r | |
754 | Allocate an item to save the <Key, Value> pair to the tail of the netmap.\r | |
755 | \r | |
756 | Allocate an item to save the <Key, Value> pair and add corresponding node entry\r | |
757 | to the tail of the Used doubly linked list. The number of the <Key, Value> \r | |
758 | pairs in the netmap increase by 1.\r | |
759 | \r | |
760 | If Map is NULL, then ASSERT().\r | |
761 | \r | |
762 | @param[in, out] Map The netmap to insert into.\r | |
763 | @param[in] Key The user's key.\r | |
764 | @param[in] Value The user's value for the key.\r | |
765 | \r | |
766 | @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r | |
767 | @retval EFI_SUCCESS The item is inserted to the tail.\r | |
768 | \r | |
769 | **/\r | |
770 | EFI_STATUS\r | |
771 | EFIAPI\r | |
772 | NetMapInsertTail (\r | |
773 | IN OUT NET_MAP *Map,\r | |
774 | IN VOID *Key,\r | |
775 | IN VOID *Value OPTIONAL\r | |
776 | );\r | |
777 | \r | |
778 | /**\r | |
779 | Finds the key in the netmap and returns the point to the item containing the Key.\r | |
780 | \r | |
781 | Iterate the Used doubly linked list of the netmap to get every item. Compare the key of every \r | |
782 | item with the key to search. It returns the point to the item contains the Key if found.\r | |
783 | \r | |
784 | If Map is NULL, then ASSERT().\r | |
785 | \r | |
786 | @param[in] Map The netmap to search within.\r | |
787 | @param[in] Key The key to search.\r | |
788 | \r | |
789 | @return The point to the item contains the Key, or NULL if Key isn't in the map.\r | |
790 | \r | |
791 | **/\r | |
792 | NET_MAP_ITEM *\r | |
793 | EFIAPI\r | |
794 | NetMapFindKey (\r | |
795 | IN NET_MAP *Map,\r | |
796 | IN VOID *Key\r | |
797 | );\r | |
798 | \r | |
799 | /**\r | |
800 | Remove the node entry of the item from the netmap and return the key of the removed item.\r | |
801 | \r | |
802 | Remove the node entry of the item from the Used doubly linked list of the netmap. \r | |
803 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node \r | |
804 | entry of the item to the Recycled doubly linked list of the netmap. If Value is not NULL,\r | |
805 | Value will point to the value of the item. It returns the key of the removed item.\r | |
806 | \r | |
807 | If Map is NULL, then ASSERT().\r | |
808 | If Item is NULL, then ASSERT().\r | |
809 | if item in not in the netmap, then ASSERT().\r | |
810 | \r | |
811 | @param[in, out] Map The netmap to remove the item from.\r | |
812 | @param[in, out] Item The item to remove.\r | |
813 | @param[out] Value The variable to receive the value if not NULL.\r | |
814 | \r | |
815 | @return The key of the removed item.\r | |
816 | \r | |
817 | **/\r | |
818 | VOID *\r | |
819 | EFIAPI\r | |
820 | NetMapRemoveItem (\r | |
821 | IN OUT NET_MAP *Map,\r | |
822 | IN OUT NET_MAP_ITEM *Item,\r | |
823 | OUT VOID **Value OPTIONAL\r | |
824 | );\r | |
825 | \r | |
826 | /**\r | |
827 | Remove the first node entry on the netmap and return the key of the removed item.\r | |
828 | \r | |
829 | Remove the first node entry from the Used doubly linked list of the netmap. \r | |
830 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node \r | |
831 | entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r | |
832 | parameter Value will point to the value of the item. It returns the key of the removed item.\r | |
833 | \r | |
834 | If Map is NULL, then ASSERT().\r | |
835 | If the Used doubly linked list is empty, then ASSERT().\r | |
836 | \r | |
837 | @param[in, out] Map The netmap to remove the head from.\r | |
838 | @param[out] Value The variable to receive the value if not NULL.\r | |
839 | \r | |
840 | @return The key of the item removed.\r | |
841 | \r | |
842 | **/\r | |
843 | VOID *\r | |
844 | EFIAPI\r | |
845 | NetMapRemoveHead (\r | |
846 | IN OUT NET_MAP *Map,\r | |
847 | OUT VOID **Value OPTIONAL\r | |
848 | );\r | |
849 | \r | |
850 | /**\r | |
851 | Remove the last node entry on the netmap and return the key of the removed item.\r | |
852 | \r | |
853 | Remove the last node entry from the Used doubly linked list of the netmap. \r | |
854 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node \r | |
855 | entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r | |
856 | parameter Value will point to the value of the item. It returns the key of the removed item.\r | |
857 | \r | |
858 | If Map is NULL, then ASSERT().\r | |
859 | If the Used doubly linked list is empty, then ASSERT().\r | |
860 | \r | |
861 | @param[in, out] Map The netmap to remove the tail from.\r | |
862 | @param[out] Value The variable to receive the value if not NULL.\r | |
863 | \r | |
864 | @return The key of the item removed.\r | |
865 | \r | |
866 | **/\r | |
867 | VOID *\r | |
868 | EFIAPI\r | |
869 | NetMapRemoveTail (\r | |
870 | IN OUT NET_MAP *Map,\r | |
871 | OUT VOID **Value OPTIONAL\r | |
872 | );\r | |
873 | \r | |
874 | typedef\r | |
875 | EFI_STATUS\r | |
876 | (*NET_MAP_CALLBACK) (\r | |
877 | IN NET_MAP *Map,\r | |
878 | IN NET_MAP_ITEM *Item,\r | |
879 | IN VOID *Arg\r | |
880 | );\r | |
881 | \r | |
882 | /**\r | |
883 | Iterate through the netmap and call CallBack for each item.\r | |
884 | \r | |
885 | It will contiue the traverse if CallBack returns EFI_SUCCESS, otherwise, break\r | |
886 | from the loop. It returns the CallBack's last return value. This function is \r | |
887 | delete safe for the current item.\r | |
888 | \r | |
889 | If Map is NULL, then ASSERT().\r | |
890 | If CallBack is NULL, then ASSERT().\r | |
891 | \r | |
892 | @param[in] Map The Map to iterate through.\r | |
893 | @param[in] CallBack The callback function to call for each item.\r | |
894 | @param[in] Arg The opaque parameter to the callback.\r | |
895 | \r | |
896 | @retval EFI_SUCCESS There is no item in the netmap or CallBack for each item\r | |
897 | return EFI_SUCCESS.\r | |
898 | @retval Others It returns the CallBack's last return value.\r | |
899 | \r | |
900 | **/\r | |
901 | EFI_STATUS\r | |
902 | EFIAPI\r | |
903 | NetMapIterate (\r | |
904 | IN NET_MAP *Map,\r | |
905 | IN NET_MAP_CALLBACK CallBack,\r | |
906 | IN VOID *Arg OPTIONAL\r | |
907 | );\r | |
908 | \r | |
909 | \r | |
910 | //\r | |
911 | // Helper functions to implement driver binding and service binding protocols.\r | |
912 | //\r | |
913 | /**\r | |
914 | Create a child of the service that is identified by ServiceBindingGuid.\r | |
915 | \r | |
916 | Get the ServiceBinding Protocol first, then use it to create a child.\r | |
917 | \r | |
918 | If ServiceBindingGuid is NULL, then ASSERT().\r | |
919 | If ChildHandle is NULL, then ASSERT().\r | |
920 | \r | |
921 | @param[in] Controller The controller which has the service installed.\r | |
922 | @param[in] Image The image handle used to open service.\r | |
923 | @param[in] ServiceBindingGuid The service's Guid.\r | |
924 | @param[in, out] ChildHandle The handle to receive the created child.\r | |
925 | \r | |
926 | @retval EFI_SUCCESS The child was successfully created.\r | |
927 | @retval Others Failed to create the child.\r | |
928 | \r | |
929 | **/\r | |
930 | EFI_STATUS\r | |
931 | EFIAPI\r | |
932 | NetLibCreateServiceChild (\r | |
933 | IN EFI_HANDLE Controller,\r | |
934 | IN EFI_HANDLE Image,\r | |
935 | IN EFI_GUID *ServiceBindingGuid,\r | |
936 | IN OUT EFI_HANDLE *ChildHandle\r | |
937 | );\r | |
938 | \r | |
939 | /**\r | |
940 | Destroy a child of the service that is identified by ServiceBindingGuid.\r | |
941 | \r | |
942 | Get the ServiceBinding Protocol first, then use it to destroy a child.\r | |
943 | \r | |
944 | If ServiceBindingGuid is NULL, then ASSERT().\r | |
945 | \r | |
946 | @param[in] Controller The controller which has the service installed.\r | |
947 | @param[in] Image The image handle used to open service.\r | |
948 | @param[in] ServiceBindingGuid The service's Guid.\r | |
949 | @param[in] ChildHandle The child to destroy.\r | |
950 | \r | |
951 | @retval EFI_SUCCESS The child is successfully destroyed.\r | |
952 | @retval Others Failed to destroy the child.\r | |
953 | \r | |
954 | **/\r | |
955 | EFI_STATUS\r | |
956 | EFIAPI\r | |
957 | NetLibDestroyServiceChild (\r | |
958 | IN EFI_HANDLE Controller,\r | |
959 | IN EFI_HANDLE Image,\r | |
960 | IN EFI_GUID *ServiceBindingGuid,\r | |
961 | IN EFI_HANDLE ChildHandle\r | |
962 | );\r | |
963 | \r | |
964 | /**\r | |
965 | Convert the mac address of the simple network protocol installed on\r | |
966 | SnpHandle to a unicode string. Callers are responsible for freeing the\r | |
967 | string storage.\r | |
968 | \r | |
969 | Get the mac address of the Simple Network protocol from the SnpHandle. Then convert\r | |
970 | the mac address into a unicode string. It takes 2 unicode characters to represent \r | |
971 | a 1 byte binary buffer, plus one unicode character for the null terminator.\r | |
972 | \r | |
973 | \r | |
974 | @param[in] SnpHandle The handle on which the simple network protocol is\r | |
975 | installed.\r | |
976 | @param[in] ImageHandle The image handle to act as the agent handle to\r | |
977 | get the simple network protocol.\r | |
978 | @param[out] MacString The pointer to store the address of the string\r | |
979 | representation of the mac address.\r | |
980 | \r | |
981 | @retval EFI_SUCCESS Converted the mac address a unicode string successfully.\r | |
982 | @retval EFI_OUT_OF_RESOURCES There are not enough memory resources.\r | |
983 | @retval Others Failed to open the simple network protocol.\r | |
984 | \r | |
985 | **/\r | |
986 | EFI_STATUS\r | |
987 | EFIAPI\r | |
988 | NetLibGetMacString (\r | |
989 | IN EFI_HANDLE SnpHandle,\r | |
990 | IN EFI_HANDLE ImageHandle,\r | |
991 | OUT CHAR16 **MacString\r | |
992 | );\r | |
993 | \r | |
994 | /**\r | |
995 | Create an IPv4 device path node.\r | |
996 | \r | |
997 | The header type of IPv4 device path node is MESSAGING_DEVICE_PATH.\r | |
998 | The header subtype of IPv4 device path node is MSG_IPv4_DP.\r | |
999 | The length of the IPv4 device path node in bytes is 19.\r | |
1000 | Get other info from parameters to make up the whole IPv4 device path node.\r | |
1001 | \r | |
1002 | @param[in, out] Node Pointer to the IPv4 device path node.\r | |
1003 | @param[in] Controller The controller handle.\r | |
1004 | @param[in] LocalIp The local IPv4 address.\r | |
1005 | @param[in] LocalPort The local port.\r | |
1006 | @param[in] RemoteIp The remote IPv4 address.\r | |
1007 | @param[in] RemotePort The remote port.\r | |
1008 | @param[in] Protocol The protocol type in the IP header.\r | |
1009 | @param[in] UseDefaultAddress Whether this instance is using default address or not.\r | |
1010 | \r | |
1011 | **/\r | |
1012 | VOID\r | |
1013 | EFIAPI\r | |
1014 | NetLibCreateIPv4DPathNode (\r | |
1015 | IN OUT IPv4_DEVICE_PATH *Node,\r | |
1016 | IN EFI_HANDLE Controller,\r | |
1017 | IN IP4_ADDR LocalIp,\r | |
1018 | IN UINT16 LocalPort,\r | |
1019 | IN IP4_ADDR RemoteIp,\r | |
1020 | IN UINT16 RemotePort,\r | |
1021 | IN UINT16 Protocol,\r | |
1022 | IN BOOLEAN UseDefaultAddress\r | |
1023 | );\r | |
1024 | \r | |
1025 | /**\r | |
1026 | Create an IPv6 device path node.\r | |
1027 | \r | |
1028 | The header type of IPv6 device path node is MESSAGING_DEVICE_PATH.\r | |
1029 | The header subtype of IPv6 device path node is MSG_IPv6_DP.\r | |
1030 | The length of the IPv6 device path node in bytes is 43.\r | |
1031 | Get other info from parameters to make up the whole IPv6 device path node.\r | |
1032 | \r | |
1033 | @param[in, out] Node Pointer to the IPv6 device path node.\r | |
1034 | @param[in] Controller The controller handle.\r | |
1035 | @param[in] LocalIp The local IPv6 address.\r | |
1036 | @param[in] LocalPort The local port.\r | |
1037 | @param[in] RemoteIp The remote IPv6 address.\r | |
1038 | @param[in] RemotePort The remote port.\r | |
1039 | @param[in] Protocol The protocol type in the IP header.\r | |
1040 | \r | |
1041 | **/\r | |
1042 | VOID\r | |
1043 | EFIAPI\r | |
1044 | NetLibCreateIPv6DPathNode (\r | |
1045 | IN OUT IPv6_DEVICE_PATH *Node,\r | |
1046 | IN EFI_HANDLE Controller,\r | |
1047 | IN EFI_IPv6_ADDRESS *LocalIp,\r | |
1048 | IN UINT16 LocalPort,\r | |
1049 | IN EFI_IPv6_ADDRESS *RemoteIp,\r | |
1050 | IN UINT16 RemotePort,\r | |
1051 | IN UINT16 Protocol\r | |
1052 | );\r | |
1053 | \r | |
1054 | \r | |
1055 | /**\r | |
1056 | Find the UNDI/SNP handle from controller and protocol GUID.\r | |
1057 | \r | |
1058 | For example, IP will open an MNP child to transmit/receive\r | |
1059 | packets. When MNP is stopped, IP should also be stopped. IP\r | |
1060 | needs to find its own private data which is related the IP's\r | |
1061 | service binding instance that is install on UNDI/SNP handle.\r | |
1062 | Now, the controller is either a MNP or ARP child handle. But\r | |
1063 | IP opens these handle BY_DRIVER, use that info, we can get the\r | |
1064 | UNDI/SNP handle.\r | |
1065 | \r | |
1066 | @param[in] Controller Then protocol handle to check.\r | |
1067 | @param[in] ProtocolGuid The protocol that is related with the handle.\r | |
1068 | \r | |
1069 | @return The UNDI/SNP handle or NULL for errors.\r | |
1070 | \r | |
1071 | **/\r | |
1072 | EFI_HANDLE\r | |
1073 | EFIAPI\r | |
1074 | NetLibGetNicHandle (\r | |
1075 | IN EFI_HANDLE Controller,\r | |
1076 | IN EFI_GUID *ProtocolGuid\r | |
1077 | );\r | |
1078 | \r | |
1079 | /**\r | |
1080 | This is the default unload handle for all the network drivers.\r | |
1081 | \r | |
1082 | Disconnect the driver specified by ImageHandle from all the devices in the handle database.\r | |
1083 | Uninstall all the protocols installed in the driver entry point.\r | |
1084 | \r | |
1085 | @param[in] ImageHandle The drivers' driver image.\r | |
1086 | \r | |
1087 | @retval EFI_SUCCESS The image is unloaded.\r | |
1088 | @retval Others Failed to unload the image.\r | |
1089 | \r | |
1090 | **/\r | |
1091 | EFI_STATUS\r | |
1092 | EFIAPI\r | |
1093 | NetLibDefaultUnload (\r | |
1094 | IN EFI_HANDLE ImageHandle\r | |
1095 | );\r | |
1096 | \r | |
1097 | \r | |
1098 | //\r | |
1099 | //Various signatures\r | |
1100 | //\r | |
1101 | #define NET_BUF_SIGNATURE SIGNATURE_32 ('n', 'b', 'u', 'f')\r | |
1102 | #define NET_VECTOR_SIGNATURE SIGNATURE_32 ('n', 'v', 'e', 'c')\r | |
1103 | #define NET_QUE_SIGNATURE SIGNATURE_32 ('n', 'b', 'q', 'u')\r | |
1104 | \r | |
1105 | \r | |
1106 | #define NET_PROTO_DATA 64 // Opaque buffer for protocols\r | |
1107 | #define NET_BUF_HEAD 1 // Trim or allocate space from head\r | |
1108 | #define NET_BUF_TAIL 0 // Trim or allocate space from tail\r | |
1109 | #define NET_VECTOR_OWN_FIRST 0x01 // We allocated the 1st block in the vector\r | |
1110 | \r | |
1111 | #define NET_CHECK_SIGNATURE(PData, SIGNATURE) \\r | |
1112 | ASSERT (((PData) != NULL) && ((PData)->Signature == (SIGNATURE)))\r | |
1113 | \r | |
1114 | #define NET_SWAP_SHORT(Value) \\r | |
1115 | ((((Value) & 0xff) << 8) | (((Value) >> 8) & 0xff))\r | |
1116 | \r | |
1117 | //\r | |
1118 | // Single memory block in the vector.\r | |
1119 | //\r | |
1120 | typedef struct {\r | |
1121 | UINT32 Len; // The block's length\r | |
1122 | UINT8 *Bulk; // The block's Data\r | |
1123 | } NET_BLOCK;\r | |
1124 | \r | |
1125 | typedef VOID (*NET_VECTOR_EXT_FREE) (VOID *Arg);\r | |
1126 | \r | |
1127 | //\r | |
1128 | //NET_VECTOR contains several blocks to hold all packet's\r | |
1129 | //fragments and other house-keeping stuff for sharing. It\r | |
1130 | //doesn't specify the where actual packet fragment begins.\r | |
1131 | //\r | |
1132 | typedef struct {\r | |
1133 | UINT32 Signature;\r | |
1134 | INTN RefCnt; // Reference count to share NET_VECTOR.\r | |
1135 | NET_VECTOR_EXT_FREE Free; // external function to free NET_VECTOR\r | |
1136 | VOID *Arg; // opeque argument to Free\r | |
1137 | UINT32 Flag; // Flags, NET_VECTOR_OWN_FIRST\r | |
1138 | UINT32 Len; // Total length of the assocated BLOCKs\r | |
1139 | \r | |
1140 | UINT32 BlockNum;\r | |
1141 | NET_BLOCK Block[1];\r | |
1142 | } NET_VECTOR;\r | |
1143 | \r | |
1144 | //\r | |
1145 | //NET_BLOCK_OP operates on the NET_BLOCK. It specifies\r | |
1146 | //where the actual fragment begins and ends\r | |
1147 | //\r | |
1148 | typedef struct {\r | |
1149 | UINT8 *BlockHead; // Block's head, or the smallest valid Head\r | |
1150 | UINT8 *BlockTail; // Block's tail. BlockTail-BlockHead=block length\r | |
1151 | UINT8 *Head; // 1st byte of the data in the block\r | |
1152 | UINT8 *Tail; // Tail of the data in the block, Tail-Head=Size\r | |
1153 | UINT32 Size; // The size of the data\r | |
1154 | } NET_BLOCK_OP;\r | |
1155 | \r | |
1156 | typedef union {\r | |
1157 | IP4_HEAD *Ip4;\r | |
1158 | EFI_IP6_HEADER *Ip6;\r | |
1159 | } NET_IP_HEAD;\r | |
1160 | \r | |
1161 | //\r | |
1162 | //NET_BUF is the buffer manage structure used by the\r | |
1163 | //network stack. Every network packet may be fragmented. The Vector points to\r | |
1164 | //memory blocks used by each fragment, and BlockOp\r | |
1165 | //specifies where each fragment begins and ends.\r | |
1166 | //\r | |
1167 | //It also contains an opaque area for the protocol to store\r | |
1168 | //per-packet information. Protocol must be careful not\r | |
1169 | //to overwrite the members after that.\r | |
1170 | //\r | |
1171 | typedef struct {\r | |
1172 | UINT32 Signature;\r | |
1173 | INTN RefCnt;\r | |
1174 | LIST_ENTRY List; // The List this NET_BUF is on\r | |
1175 | \r | |
1176 | NET_IP_HEAD Ip; // Network layer header, for fast access\r | |
1177 | TCP_HEAD *Tcp; // Transport layer header, for fast access\r | |
1178 | EFI_UDP_HEADER *Udp; // User Datagram Protocol header\r | |
1179 | UINT8 ProtoData [NET_PROTO_DATA]; //Protocol specific data\r | |
1180 | \r | |
1181 | NET_VECTOR *Vector; // The vector containing the packet\r | |
1182 | \r | |
1183 | UINT32 BlockOpNum; // Total number of BlockOp in the buffer\r | |
1184 | UINT32 TotalSize; // Total size of the actual packet\r | |
1185 | NET_BLOCK_OP BlockOp[1]; // Specify the position of actual packet\r | |
1186 | } NET_BUF;\r | |
1187 | \r | |
1188 | //\r | |
1189 | //A queue of NET_BUFs. It is a thin extension of\r | |
1190 | //NET_BUF functions.\r | |
1191 | //\r | |
1192 | typedef struct {\r | |
1193 | UINT32 Signature;\r | |
1194 | INTN RefCnt;\r | |
1195 | LIST_ENTRY List; // The List this buffer queue is on\r | |
1196 | \r | |
1197 | LIST_ENTRY BufList; // list of queued buffers\r | |
1198 | UINT32 BufSize; // total length of DATA in the buffers\r | |
1199 | UINT32 BufNum; // total number of buffers on the chain\r | |
1200 | } NET_BUF_QUEUE;\r | |
1201 | \r | |
1202 | //\r | |
1203 | // Pseudo header for TCP and UDP checksum\r | |
1204 | //\r | |
1205 | #pragma pack(1)\r | |
1206 | typedef struct {\r | |
1207 | IP4_ADDR SrcIp;\r | |
1208 | IP4_ADDR DstIp;\r | |
1209 | UINT8 Reserved;\r | |
1210 | UINT8 Protocol;\r | |
1211 | UINT16 Len;\r | |
1212 | } NET_PSEUDO_HDR;\r | |
1213 | \r | |
1214 | typedef struct {\r | |
1215 | EFI_IPv6_ADDRESS SrcIp;\r | |
1216 | EFI_IPv6_ADDRESS DstIp;\r | |
1217 | UINT32 Len;\r | |
1218 | UINT32 Reserved:24;\r | |
1219 | UINT32 NextHeader:8;\r | |
1220 | } NET_IP6_PSEUDO_HDR;\r | |
1221 | #pragma pack()\r | |
1222 | \r | |
1223 | //\r | |
1224 | // The fragment entry table used in network interfaces. This is\r | |
1225 | // the same as NET_BLOCK now. Use two different to distinguish\r | |
1226 | // the two in case that NET_BLOCK be enhanced later.\r | |
1227 | //\r | |
1228 | typedef struct {\r | |
1229 | UINT32 Len;\r | |
1230 | UINT8 *Bulk;\r | |
1231 | } NET_FRAGMENT;\r | |
1232 | \r | |
1233 | #define NET_GET_REF(PData) ((PData)->RefCnt++)\r | |
1234 | #define NET_PUT_REF(PData) ((PData)->RefCnt--)\r | |
1235 | #define NETBUF_FROM_PROTODATA(Info) BASE_CR((Info), NET_BUF, ProtoData)\r | |
1236 | \r | |
1237 | #define NET_BUF_SHARED(Buf) \\r | |
1238 | (((Buf)->RefCnt > 1) || ((Buf)->Vector->RefCnt > 1))\r | |
1239 | \r | |
1240 | #define NET_VECTOR_SIZE(BlockNum) \\r | |
1241 | (sizeof (NET_VECTOR) + ((BlockNum) - 1) * sizeof (NET_BLOCK))\r | |
1242 | \r | |
1243 | #define NET_BUF_SIZE(BlockOpNum) \\r | |
1244 | (sizeof (NET_BUF) + ((BlockOpNum) - 1) * sizeof (NET_BLOCK_OP))\r | |
1245 | \r | |
1246 | #define NET_HEADSPACE(BlockOp) \\r | |
1247 | (UINTN)((BlockOp)->Head - (BlockOp)->BlockHead)\r | |
1248 | \r | |
1249 | #define NET_TAILSPACE(BlockOp) \\r | |
1250 | (UINTN)((BlockOp)->BlockTail - (BlockOp)->Tail)\r | |
1251 | \r | |
1252 | /**\r | |
1253 | Allocate a single block NET_BUF. Upon allocation, all the\r | |
1254 | free space is in the tail room.\r | |
1255 | \r | |
1256 | @param[in] Len The length of the block.\r | |
1257 | \r | |
1258 | @return Pointer to the allocated NET_BUF, or NULL if the \r | |
1259 | allocation failed due to resource limit.\r | |
1260 | \r | |
1261 | **/\r | |
1262 | NET_BUF *\r | |
1263 | EFIAPI\r | |
1264 | NetbufAlloc (\r | |
1265 | IN UINT32 Len\r | |
1266 | );\r | |
1267 | \r | |
1268 | /**\r | |
1269 | Free the net buffer and its associated NET_VECTOR.\r | |
1270 | \r | |
1271 | Decrease the reference count of the net buffer by one. Free the associated net\r | |
1272 | vector and itself if the reference count of the net buffer is decreased to 0. \r | |
1273 | The net vector free operation decreases the reference count of the net \r | |
1274 | vector by one, and performs the resource free operation when the reference count\r | |
1275 | of the net vector is 0. \r | |
1276 | \r | |
1277 | @param[in] Nbuf Pointer to the NET_BUF to be freed.\r | |
1278 | \r | |
1279 | **/\r | |
1280 | VOID\r | |
1281 | EFIAPI\r | |
1282 | NetbufFree (\r | |
1283 | IN NET_BUF *Nbuf\r | |
1284 | );\r | |
1285 | \r | |
1286 | /**\r | |
1287 | Get the index of NET_BLOCK_OP that contains the byte at Offset in the net \r | |
1288 | buffer. \r | |
1289 | \r | |
1290 | For example, this function can be used to retrieve the IP header in the packet. It \r | |
1291 | also can be used to get the fragment that contains the byte used \r | |
1292 | mainly by the library implementation itself. \r | |
1293 | \r | |
1294 | @param[in] Nbuf Pointer to the net buffer.\r | |
1295 | @param[in] Offset The offset of the byte.\r | |
1296 | @param[out] Index Index of the NET_BLOCK_OP that contains the byte at \r | |
1297 | Offset.\r | |
1298 | \r | |
1299 | @return Pointer to the Offset'th byte of data in the net buffer, or NULL\r | |
1300 | if there is no such data in the net buffer.\r | |
1301 | \r | |
1302 | **/\r | |
1303 | UINT8 *\r | |
1304 | EFIAPI\r | |
1305 | NetbufGetByte (\r | |
1306 | IN NET_BUF *Nbuf,\r | |
1307 | IN UINT32 Offset,\r | |
1308 | OUT UINT32 *Index OPTIONAL\r | |
1309 | );\r | |
1310 | \r | |
1311 | /**\r | |
1312 | Create a copy of the net buffer that shares the associated net vector. \r | |
1313 | \r | |
1314 | The reference count of the newly created net buffer is set to 1. The reference \r | |
1315 | count of the associated net vector is increased by one. \r | |
1316 | \r | |
1317 | @param[in] Nbuf Pointer to the net buffer to be cloned.\r | |
1318 | \r | |
1319 | @return Pointer to the cloned net buffer, or NULL if the\r | |
1320 | allocation failed due to resource limit.\r | |
1321 | \r | |
1322 | **/\r | |
1323 | NET_BUF *\r | |
1324 | EFIAPI\r | |
1325 | NetbufClone (\r | |
1326 | IN NET_BUF *Nbuf\r | |
1327 | );\r | |
1328 | \r | |
1329 | /**\r | |
1330 | Create a duplicated copy of the net buffer with data copied and HeadSpace\r | |
1331 | bytes of head space reserved.\r | |
1332 | \r | |
1333 | The duplicated net buffer will allocate its own memory to hold the data of the\r | |
1334 | source net buffer.\r | |
1335 | \r | |
1336 | @param[in] Nbuf Pointer to the net buffer to be duplicated from.\r | |
1337 | @param[in, out] Duplicate Pointer to the net buffer to duplicate to, if \r | |
1338 | NULL a new net buffer is allocated.\r | |
1339 | @param[in] HeadSpace Length of the head space to reserve.\r | |
1340 | \r | |
1341 | @return Pointer to the duplicated net buffer, or NULL if\r | |
1342 | the allocation failed due to resource limit.\r | |
1343 | \r | |
1344 | **/\r | |
1345 | NET_BUF *\r | |
1346 | EFIAPI\r | |
1347 | NetbufDuplicate (\r | |
1348 | IN NET_BUF *Nbuf,\r | |
1349 | IN OUT NET_BUF *Duplicate OPTIONAL,\r | |
1350 | IN UINT32 HeadSpace\r | |
1351 | );\r | |
1352 | \r | |
1353 | /**\r | |
1354 | Create a NET_BUF structure which contains Len byte data of Nbuf starting from \r | |
1355 | Offset. \r | |
1356 | \r | |
1357 | A new NET_BUF structure will be created but the associated data in NET_VECTOR \r | |
1358 | is shared. This function exists to do IP packet fragmentation. \r | |
1359 | \r | |
1360 | @param[in] Nbuf Pointer to the net buffer to be extracted.\r | |
1361 | @param[in] Offset Starting point of the data to be included in the new \r | |
1362 | net buffer.\r | |
1363 | @param[in] Len Bytes of data to be included in the new net buffer. \r | |
1364 | @param[in] HeadSpace Bytes of head space to reserve for protocol header. \r | |
1365 | \r | |
1366 | @return Pointer to the cloned net buffer, or NULL if the \r | |
1367 | allocation failed due to resource limit.\r | |
1368 | \r | |
1369 | **/\r | |
1370 | NET_BUF *\r | |
1371 | EFIAPI\r | |
1372 | NetbufGetFragment (\r | |
1373 | IN NET_BUF *Nbuf,\r | |
1374 | IN UINT32 Offset,\r | |
1375 | IN UINT32 Len,\r | |
1376 | IN UINT32 HeadSpace\r | |
1377 | );\r | |
1378 | \r | |
1379 | /**\r | |
1380 | Reserve some space in the header room of the net buffer.\r | |
1381 | \r | |
1382 | Upon allocation, all the space is in the tail room of the buffer. Call this \r | |
1383 | function to move some space to the header room. This function is quite limited\r | |
1384 | in that it can only reserve space from the first block of an empty NET_BUF not \r | |
1385 | built from the external. But it should be enough for the network stack. \r | |
1386 | \r | |
1387 | @param[in, out] Nbuf Pointer to the net buffer.\r | |
1388 | @param[in] Len The length of buffer to be reserved from the header.\r | |
1389 | \r | |
1390 | **/\r | |
1391 | VOID\r | |
1392 | EFIAPI\r | |
1393 | NetbufReserve (\r | |
1394 | IN OUT NET_BUF *Nbuf,\r | |
1395 | IN UINT32 Len\r | |
1396 | );\r | |
1397 | \r | |
1398 | /**\r | |
1399 | Allocate Len bytes of space from the header or tail of the buffer. \r | |
1400 | \r | |
1401 | @param[in, out] Nbuf Pointer to the net buffer.\r | |
1402 | @param[in] Len The length of the buffer to be allocated.\r | |
1403 | @param[in] FromHead The flag to indicate whether reserve the data \r | |
1404 | from head (TRUE) or tail (FALSE).\r | |
1405 | \r | |
1406 | @return Pointer to the first byte of the allocated buffer, \r | |
1407 | or NULL if there is no sufficient space.\r | |
1408 | \r | |
1409 | **/\r | |
1410 | UINT8*\r | |
1411 | EFIAPI\r | |
1412 | NetbufAllocSpace (\r | |
1413 | IN OUT NET_BUF *Nbuf,\r | |
1414 | IN UINT32 Len,\r | |
1415 | IN BOOLEAN FromHead\r | |
1416 | );\r | |
1417 | \r | |
1418 | /**\r | |
1419 | Trim Len bytes from the header or tail of the net buffer. \r | |
1420 | \r | |
1421 | @param[in, out] Nbuf Pointer to the net buffer.\r | |
1422 | @param[in] Len The length of the data to be trimmed.\r | |
1423 | @param[in] FromHead The flag to indicate whether trim data from head \r | |
1424 | (TRUE) or tail (FALSE).\r | |
1425 | \r | |
1426 | @return Length of the actually trimmed data, which may be less \r | |
1427 | than Len if the TotalSize of Nbuf is less than Len.\r | |
1428 | \r | |
1429 | **/\r | |
1430 | UINT32\r | |
1431 | EFIAPI\r | |
1432 | NetbufTrim (\r | |
1433 | IN OUT NET_BUF *Nbuf,\r | |
1434 | IN UINT32 Len,\r | |
1435 | IN BOOLEAN FromHead\r | |
1436 | );\r | |
1437 | \r | |
1438 | /**\r | |
1439 | Copy Len bytes of data from the specific offset of the net buffer to the \r | |
1440 | destination memory.\r | |
1441 | \r | |
1442 | The Len bytes of data may cross several fragments of the net buffer.\r | |
1443 | \r | |
1444 | @param[in] Nbuf Pointer to the net buffer.\r | |
1445 | @param[in] Offset The sequence number of the first byte to copy.\r | |
1446 | @param[in] Len Length of the data to copy.\r | |
1447 | @param[in] Dest The destination of the data to copy to.\r | |
1448 | \r | |
1449 | @return The length of the actual copied data, or 0 if the offset\r | |
1450 | specified exceeds the total size of net buffer.\r | |
1451 | \r | |
1452 | **/\r | |
1453 | UINT32\r | |
1454 | EFIAPI\r | |
1455 | NetbufCopy (\r | |
1456 | IN NET_BUF *Nbuf,\r | |
1457 | IN UINT32 Offset,\r | |
1458 | IN UINT32 Len,\r | |
1459 | IN UINT8 *Dest\r | |
1460 | );\r | |
1461 | \r | |
1462 | /**\r | |
1463 | Build a NET_BUF from external blocks. \r | |
1464 | \r | |
1465 | A new NET_BUF structure will be created from external blocks. An additional block\r | |
1466 | of memory will be allocated to hold reserved HeadSpace bytes of header room\r | |
1467 | and existing HeadLen bytes of header, but the external blocks are shared by the\r | |
1468 | net buffer to avoid data copying.\r | |
1469 | \r | |
1470 | @param[in] ExtFragment Pointer to the data block.\r | |
1471 | @param[in] ExtNum The number of the data blocks.\r | |
1472 | @param[in] HeadSpace The head space to be reserved.\r | |
1473 | @param[in] HeadLen The length of the protocol header. The function\r | |
1474 | pulls this amount of data into a linear block.\r | |
1475 | @param[in] ExtFree Pointer to the caller-provided free function.\r | |
1476 | @param[in] Arg The argument passed to ExtFree when ExtFree is\r | |
1477 | called.\r | |
1478 | \r | |
1479 | @return Pointer to the net buffer built from the data blocks, \r | |
1480 | or NULL if the allocation failed due to resource\r | |
1481 | limit.\r | |
1482 | \r | |
1483 | **/\r | |
1484 | NET_BUF *\r | |
1485 | EFIAPI\r | |
1486 | NetbufFromExt (\r | |
1487 | IN NET_FRAGMENT *ExtFragment,\r | |
1488 | IN UINT32 ExtNum,\r | |
1489 | IN UINT32 HeadSpace,\r | |
1490 | IN UINT32 HeadLen,\r | |
1491 | IN NET_VECTOR_EXT_FREE ExtFree,\r | |
1492 | IN VOID *Arg OPTIONAL\r | |
1493 | );\r | |
1494 | \r | |
1495 | /**\r | |
1496 | Build a fragment table to contain the fragments in the net buffer. This is the\r | |
1497 | opposite operation of the NetbufFromExt. \r | |
1498 | \r | |
1499 | @param[in] Nbuf Point to the net buffer.\r | |
1500 | @param[in, out] ExtFragment Pointer to the data block.\r | |
1501 | @param[in, out] ExtNum The number of the data blocks.\r | |
1502 | \r | |
1503 | @retval EFI_BUFFER_TOO_SMALL The number of non-empty blocks is bigger than \r | |
1504 | ExtNum.\r | |
1505 | @retval EFI_SUCCESS Fragment table is built successfully.\r | |
1506 | \r | |
1507 | **/\r | |
1508 | EFI_STATUS\r | |
1509 | EFIAPI\r | |
1510 | NetbufBuildExt (\r | |
1511 | IN NET_BUF *Nbuf,\r | |
1512 | IN OUT NET_FRAGMENT *ExtFragment,\r | |
1513 | IN OUT UINT32 *ExtNum\r | |
1514 | );\r | |
1515 | \r | |
1516 | /**\r | |
1517 | Build a net buffer from a list of net buffers.\r | |
1518 | \r | |
1519 | All the fragments will be collected from the list of NEW_BUF and then a new \r | |
1520 | net buffer will be created through NetbufFromExt. \r | |
1521 | \r | |
1522 | @param[in] BufList A List of the net buffer.\r | |
1523 | @param[in] HeadSpace The head space to be reserved.\r | |
1524 | @param[in] HeaderLen The length of the protocol header. The function\r | |
1525 | pulls this amount of data into a linear block.\r | |
1526 | @param[in] ExtFree Pointer to the caller provided free function.\r | |
1527 | @param[in] Arg The argument passed to ExtFree when ExtFree is called.\r | |
1528 | \r | |
1529 | @return Pointer to the net buffer built from the list of net \r | |
1530 | buffers.\r | |
1531 | \r | |
1532 | **/\r | |
1533 | NET_BUF *\r | |
1534 | EFIAPI\r | |
1535 | NetbufFromBufList (\r | |
1536 | IN LIST_ENTRY *BufList,\r | |
1537 | IN UINT32 HeadSpace,\r | |
1538 | IN UINT32 HeaderLen,\r | |
1539 | IN NET_VECTOR_EXT_FREE ExtFree,\r | |
1540 | IN VOID *Arg OPTIONAL\r | |
1541 | );\r | |
1542 | \r | |
1543 | /**\r | |
1544 | Free a list of net buffers.\r | |
1545 | \r | |
1546 | @param[in, out] Head Pointer to the head of linked net buffers.\r | |
1547 | \r | |
1548 | **/\r | |
1549 | VOID\r | |
1550 | EFIAPI\r | |
1551 | NetbufFreeList (\r | |
1552 | IN OUT LIST_ENTRY *Head\r | |
1553 | );\r | |
1554 | \r | |
1555 | /**\r | |
1556 | Initiate the net buffer queue.\r | |
1557 | \r | |
1558 | @param[in, out] NbufQue Pointer to the net buffer queue to be initialized.\r | |
1559 | \r | |
1560 | **/\r | |
1561 | VOID\r | |
1562 | EFIAPI\r | |
1563 | NetbufQueInit (\r | |
1564 | IN OUT NET_BUF_QUEUE *NbufQue\r | |
1565 | );\r | |
1566 | \r | |
1567 | /**\r | |
1568 | Allocate and initialize a net buffer queue.\r | |
1569 | \r | |
1570 | @return Pointer to the allocated net buffer queue, or NULL if the\r | |
1571 | allocation failed due to resource limit.\r | |
1572 | \r | |
1573 | **/\r | |
1574 | NET_BUF_QUEUE *\r | |
1575 | EFIAPI\r | |
1576 | NetbufQueAlloc (\r | |
1577 | VOID\r | |
1578 | );\r | |
1579 | \r | |
1580 | /**\r | |
1581 | Free a net buffer queue. \r | |
1582 | \r | |
1583 | Decrease the reference count of the net buffer queue by one. The real resource\r | |
1584 | free operation isn't performed until the reference count of the net buffer \r | |
1585 | queue is decreased to 0.\r | |
1586 | \r | |
1587 | @param[in] NbufQue Pointer to the net buffer queue to be freed.\r | |
1588 | \r | |
1589 | **/\r | |
1590 | VOID\r | |
1591 | EFIAPI\r | |
1592 | NetbufQueFree (\r | |
1593 | IN NET_BUF_QUEUE *NbufQue\r | |
1594 | );\r | |
1595 | \r | |
1596 | /**\r | |
1597 | Remove a net buffer from the head in the specific queue and return it.\r | |
1598 | \r | |
1599 | @param[in, out] NbufQue Pointer to the net buffer queue.\r | |
1600 | \r | |
1601 | @return Pointer to the net buffer removed from the specific queue, \r | |
1602 | or NULL if there is no net buffer in the specific queue.\r | |
1603 | \r | |
1604 | **/\r | |
1605 | NET_BUF *\r | |
1606 | EFIAPI\r | |
1607 | NetbufQueRemove (\r | |
1608 | IN OUT NET_BUF_QUEUE *NbufQue\r | |
1609 | );\r | |
1610 | \r | |
1611 | /**\r | |
1612 | Append a net buffer to the net buffer queue.\r | |
1613 | \r | |
1614 | @param[in, out] NbufQue Pointer to the net buffer queue.\r | |
1615 | @param[in, out] Nbuf Pointer to the net buffer to be appended.\r | |
1616 | \r | |
1617 | **/\r | |
1618 | VOID\r | |
1619 | EFIAPI\r | |
1620 | NetbufQueAppend (\r | |
1621 | IN OUT NET_BUF_QUEUE *NbufQue,\r | |
1622 | IN OUT NET_BUF *Nbuf\r | |
1623 | );\r | |
1624 | \r | |
1625 | /**\r | |
1626 | Copy Len bytes of data from the net buffer queue at the specific offset to the\r | |
1627 | destination memory.\r | |
1628 | \r | |
1629 | The copying operation is the same as NetbufCopy but applies to the net buffer\r | |
1630 | queue instead of the net buffer.\r | |
1631 | \r | |
1632 | @param[in] NbufQue Pointer to the net buffer queue.\r | |
1633 | @param[in] Offset The sequence number of the first byte to copy.\r | |
1634 | @param[in] Len Length of the data to copy.\r | |
1635 | @param[out] Dest The destination of the data to copy to.\r | |
1636 | \r | |
1637 | @return The length of the actual copied data, or 0 if the offset \r | |
1638 | specified exceeds the total size of net buffer queue.\r | |
1639 | \r | |
1640 | **/\r | |
1641 | UINT32\r | |
1642 | EFIAPI\r | |
1643 | NetbufQueCopy (\r | |
1644 | IN NET_BUF_QUEUE *NbufQue,\r | |
1645 | IN UINT32 Offset,\r | |
1646 | IN UINT32 Len,\r | |
1647 | OUT UINT8 *Dest\r | |
1648 | );\r | |
1649 | \r | |
1650 | /**\r | |
1651 | Trim Len bytes of data from the queue header and release any net buffer \r | |
1652 | that is trimmed wholely.\r | |
1653 | \r | |
1654 | The trimming operation is the same as NetbufTrim but applies to the net buffer\r | |
1655 | queue instead of the net buffer.\r | |
1656 | \r | |
1657 | @param[in, out] NbufQue Pointer to the net buffer queue.\r | |
1658 | @param[in] Len Length of the data to trim.\r | |
1659 | \r | |
1660 | @return The actual length of the data trimmed.\r | |
1661 | \r | |
1662 | **/\r | |
1663 | UINT32\r | |
1664 | EFIAPI\r | |
1665 | NetbufQueTrim (\r | |
1666 | IN OUT NET_BUF_QUEUE *NbufQue,\r | |
1667 | IN UINT32 Len\r | |
1668 | );\r | |
1669 | \r | |
1670 | \r | |
1671 | /**\r | |
1672 | Flush the net buffer queue.\r | |
1673 | \r | |
1674 | @param[in, out] NbufQue Pointer to the queue to be flushed.\r | |
1675 | \r | |
1676 | **/\r | |
1677 | VOID\r | |
1678 | EFIAPI\r | |
1679 | NetbufQueFlush (\r | |
1680 | IN OUT NET_BUF_QUEUE *NbufQue\r | |
1681 | );\r | |
1682 | \r | |
1683 | /**\r | |
1684 | Compute the checksum for a bulk of data.\r | |
1685 | \r | |
1686 | @param[in] Bulk Pointer to the data.\r | |
1687 | @param[in] Len Length of the data, in bytes.\r | |
1688 | \r | |
1689 | @return The computed checksum.\r | |
1690 | \r | |
1691 | **/\r | |
1692 | UINT16\r | |
1693 | EFIAPI\r | |
1694 | NetblockChecksum (\r | |
1695 | IN UINT8 *Bulk,\r | |
1696 | IN UINT32 Len\r | |
1697 | );\r | |
1698 | \r | |
1699 | /**\r | |
1700 | Add two checksums.\r | |
1701 | \r | |
1702 | @param[in] Checksum1 The first checksum to be added.\r | |
1703 | @param[in] Checksum2 The second checksum to be added.\r | |
1704 | \r | |
1705 | @return The new checksum.\r | |
1706 | \r | |
1707 | **/\r | |
1708 | UINT16\r | |
1709 | EFIAPI\r | |
1710 | NetAddChecksum (\r | |
1711 | IN UINT16 Checksum1,\r | |
1712 | IN UINT16 Checksum2\r | |
1713 | );\r | |
1714 | \r | |
1715 | /**\r | |
1716 | Compute the checksum for a NET_BUF.\r | |
1717 | \r | |
1718 | @param[in] Nbuf Pointer to the net buffer.\r | |
1719 | \r | |
1720 | @return The computed checksum.\r | |
1721 | \r | |
1722 | **/\r | |
1723 | UINT16\r | |
1724 | EFIAPI\r | |
1725 | NetbufChecksum (\r | |
1726 | IN NET_BUF *Nbuf\r | |
1727 | );\r | |
1728 | \r | |
1729 | /**\r | |
1730 | Compute the checksum for TCP/UDP pseudo header. \r | |
1731 | \r | |
1732 | Src and Dst are in network byte order, and Len is in host byte order.\r | |
1733 | \r | |
1734 | @param[in] Src The source address of the packet.\r | |
1735 | @param[in] Dst The destination address of the packet.\r | |
1736 | @param[in] Proto The protocol type of the packet.\r | |
1737 | @param[in] Len The length of the packet.\r | |
1738 | \r | |
1739 | @return The computed checksum.\r | |
1740 | \r | |
1741 | **/\r | |
1742 | UINT16\r | |
1743 | EFIAPI\r | |
1744 | NetPseudoHeadChecksum (\r | |
1745 | IN IP4_ADDR Src,\r | |
1746 | IN IP4_ADDR Dst,\r | |
1747 | IN UINT8 Proto,\r | |
1748 | IN UINT16 Len\r | |
1749 | );\r | |
1750 | \r | |
1751 | /**\r | |
1752 | Compute the checksum for TCP6/UDP6 pseudo header. \r | |
1753 | \r | |
1754 | Src and Dst are in network byte order, and Len is in host byte order.\r | |
1755 | \r | |
1756 | @param[in] Src The source address of the packet.\r | |
1757 | @param[in] Dst The destination address of the packet.\r | |
1758 | @param[in] NextHeader The protocol type of the packet.\r | |
1759 | @param[in] Len The length of the packet.\r | |
1760 | \r | |
1761 | @return The computed checksum.\r | |
1762 | \r | |
1763 | **/\r | |
1764 | UINT16\r | |
1765 | NetIp6PseudoHeadChecksum (\r | |
1766 | IN EFI_IPv6_ADDRESS *Src,\r | |
1767 | IN EFI_IPv6_ADDRESS *Dst,\r | |
1768 | IN UINT8 NextHeader,\r | |
1769 | IN UINT32 Len\r | |
1770 | );\r | |
1771 | #endif\r |