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1 | /** @file\r | |
2 | This 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 - 2016, Intel Corporation. All rights reserved.<BR>\r | |
6 | 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<BR>\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 | #include <Library/BaseLib.h>\r | |
22 | #include <Library/BaseMemoryLib.h>\r | |
23 | \r | |
24 | typedef UINT32 IP4_ADDR;\r | |
25 | typedef UINT32 TCP_SEQNO;\r | |
26 | typedef UINT16 TCP_PORTNO;\r | |
27 | \r | |
28 | \r | |
29 | #define NET_ETHER_ADDR_LEN 6\r | |
30 | #define NET_IFTYPE_ETHERNET 0x01\r | |
31 | \r | |
32 | #define NET_VLAN_TAG_LEN 4\r | |
33 | #define ETHER_TYPE_VLAN 0x8100\r | |
34 | \r | |
35 | #define EFI_IP_PROTO_UDP 0x11\r | |
36 | #define EFI_IP_PROTO_TCP 0x06\r | |
37 | #define EFI_IP_PROTO_ICMP 0x01\r | |
38 | #define IP4_PROTO_IGMP 0x02\r | |
39 | #define IP6_ICMP 58\r | |
40 | \r | |
41 | //\r | |
42 | // The address classification\r | |
43 | //\r | |
44 | #define IP4_ADDR_CLASSA 1\r | |
45 | #define IP4_ADDR_CLASSB 2\r | |
46 | #define IP4_ADDR_CLASSC 3\r | |
47 | #define IP4_ADDR_CLASSD 4\r | |
48 | #define IP4_ADDR_CLASSE 5\r | |
49 | \r | |
50 | #define IP4_MASK_NUM 33\r | |
51 | #define IP6_PREFIX_NUM 129\r | |
52 | \r | |
53 | #define IP6_HOP_BY_HOP 0\r | |
54 | #define IP6_DESTINATION 60\r | |
55 | #define IP6_ROUTING 43\r | |
56 | #define IP6_FRAGMENT 44\r | |
57 | #define IP6_AH 51\r | |
58 | #define IP6_ESP 50\r | |
59 | #define IP6_NO_NEXT_HEADER 59\r | |
60 | \r | |
61 | #define IP_VERSION_4 4\r | |
62 | #define IP_VERSION_6 6\r | |
63 | \r | |
64 | #define IP6_PREFIX_LENGTH 64\r | |
65 | \r | |
66 | //\r | |
67 | // DNS QTYPE values\r | |
68 | //\r | |
69 | #define DNS_TYPE_A 1\r | |
70 | #define DNS_TYPE_NS 2\r | |
71 | #define DNS_TYPE_CNAME 5\r | |
72 | #define DNS_TYPE_SOA 6\r | |
73 | #define DNS_TYPE_WKS 11\r | |
74 | #define DNS_TYPE_PTR 12\r | |
75 | #define DNS_TYPE_HINFO 13\r | |
76 | #define DNS_TYPE_MINFO 14\r | |
77 | #define DNS_TYPE_MX 15\r | |
78 | #define DNS_TYPE_TXT 16\r | |
79 | #define DNS_TYPE_AAAA 28\r | |
80 | #define DNS_TYPE_SRV_RR 33\r | |
81 | #define DNS_TYPE_AXFR 252\r | |
82 | #define DNS_TYPE_MAILB 253\r | |
83 | #define DNS_TYPE_ANY 255\r | |
84 | \r | |
85 | //\r | |
86 | // DNS QCLASS values\r | |
87 | //\r | |
88 | #define DNS_CLASS_INET 1\r | |
89 | #define DNS_CLASS_CH 3\r | |
90 | #define DNS_CLASS_HS 4\r | |
91 | #define DNS_CLASS_ANY 255\r | |
92 | \r | |
93 | #pragma pack(1)\r | |
94 | \r | |
95 | //\r | |
96 | // Ethernet head definition\r | |
97 | //\r | |
98 | typedef struct {\r | |
99 | UINT8 DstMac [NET_ETHER_ADDR_LEN];\r | |
100 | UINT8 SrcMac [NET_ETHER_ADDR_LEN];\r | |
101 | UINT16 EtherType;\r | |
102 | } ETHER_HEAD;\r | |
103 | \r | |
104 | //\r | |
105 | // 802.1Q VLAN Tag Control Information\r | |
106 | //\r | |
107 | typedef union {\r | |
108 | struct {\r | |
109 | UINT16 Vid : 12; // Unique VLAN identifier (0 to 4094)\r | |
110 | UINT16 Cfi : 1; // Canonical Format Indicator\r | |
111 | UINT16 Priority : 3; // 802.1Q priority level (0 to 7)\r | |
112 | } Bits;\r | |
113 | UINT16 Uint16;\r | |
114 | } VLAN_TCI;\r | |
115 | \r | |
116 | #define VLAN_TCI_CFI_CANONICAL_MAC 0\r | |
117 | #define VLAN_TCI_CFI_NON_CANONICAL_MAC 1\r | |
118 | \r | |
119 | //\r | |
120 | // The EFI_IP4_HEADER is hard to use because the source and\r | |
121 | // destination address are defined as EFI_IPv4_ADDRESS, which\r | |
122 | // is a structure. Two structures can't be compared or masked\r | |
123 | // directly. This is why there is an internal representation.\r | |
124 | //\r | |
125 | typedef struct {\r | |
126 | UINT8 HeadLen : 4;\r | |
127 | UINT8 Ver : 4;\r | |
128 | UINT8 Tos;\r | |
129 | UINT16 TotalLen;\r | |
130 | UINT16 Id;\r | |
131 | UINT16 Fragment;\r | |
132 | UINT8 Ttl;\r | |
133 | UINT8 Protocol;\r | |
134 | UINT16 Checksum;\r | |
135 | IP4_ADDR Src;\r | |
136 | IP4_ADDR Dst;\r | |
137 | } IP4_HEAD;\r | |
138 | \r | |
139 | \r | |
140 | //\r | |
141 | // ICMP head definition. Each ICMP message is categorized as either an error\r | |
142 | // message or query message. Two message types have their own head format.\r | |
143 | //\r | |
144 | typedef struct {\r | |
145 | UINT8 Type;\r | |
146 | UINT8 Code;\r | |
147 | UINT16 Checksum;\r | |
148 | } IP4_ICMP_HEAD;\r | |
149 | \r | |
150 | typedef struct {\r | |
151 | IP4_ICMP_HEAD Head;\r | |
152 | UINT32 Fourth; // 4th filed of the head, it depends on Type.\r | |
153 | IP4_HEAD IpHead;\r | |
154 | } IP4_ICMP_ERROR_HEAD;\r | |
155 | \r | |
156 | typedef struct {\r | |
157 | IP4_ICMP_HEAD Head;\r | |
158 | UINT16 Id;\r | |
159 | UINT16 Seq;\r | |
160 | } IP4_ICMP_QUERY_HEAD;\r | |
161 | \r | |
162 | typedef struct {\r | |
163 | UINT8 Type;\r | |
164 | UINT8 Code;\r | |
165 | UINT16 Checksum;\r | |
166 | } IP6_ICMP_HEAD;\r | |
167 | \r | |
168 | typedef struct {\r | |
169 | IP6_ICMP_HEAD Head;\r | |
170 | UINT32 Fourth;\r | |
171 | EFI_IP6_HEADER IpHead;\r | |
172 | } IP6_ICMP_ERROR_HEAD;\r | |
173 | \r | |
174 | typedef struct {\r | |
175 | IP6_ICMP_HEAD Head;\r | |
176 | UINT32 Fourth;\r | |
177 | } IP6_ICMP_INFORMATION_HEAD;\r | |
178 | \r | |
179 | //\r | |
180 | // UDP header definition\r | |
181 | //\r | |
182 | typedef struct {\r | |
183 | UINT16 SrcPort;\r | |
184 | UINT16 DstPort;\r | |
185 | UINT16 Length;\r | |
186 | UINT16 Checksum;\r | |
187 | } EFI_UDP_HEADER;\r | |
188 | \r | |
189 | //\r | |
190 | // TCP header definition\r | |
191 | //\r | |
192 | typedef struct {\r | |
193 | TCP_PORTNO SrcPort;\r | |
194 | TCP_PORTNO DstPort;\r | |
195 | TCP_SEQNO Seq;\r | |
196 | TCP_SEQNO Ack;\r | |
197 | UINT8 Res : 4;\r | |
198 | UINT8 HeadLen : 4;\r | |
199 | UINT8 Flag;\r | |
200 | UINT16 Wnd;\r | |
201 | UINT16 Checksum;\r | |
202 | UINT16 Urg;\r | |
203 | } TCP_HEAD;\r | |
204 | \r | |
205 | #pragma pack()\r | |
206 | \r | |
207 | #define NET_MAC_EQUAL(pMac1, pMac2, Len) \\r | |
208 | (CompareMem ((pMac1), (pMac2), Len) == 0)\r | |
209 | \r | |
210 | #define NET_MAC_IS_MULTICAST(Mac, BMac, Len) \\r | |
211 | (((*((UINT8 *) Mac) & 0x01) == 0x01) && (!NET_MAC_EQUAL (Mac, BMac, Len)))\r | |
212 | \r | |
213 | #define NTOHL(x) SwapBytes32 (x)\r | |
214 | \r | |
215 | #define HTONL(x) NTOHL(x)\r | |
216 | \r | |
217 | #define NTOHS(x) SwapBytes16 (x)\r | |
218 | \r | |
219 | #define HTONS(x) NTOHS(x)\r | |
220 | #define NTOHLL(x) SwapBytes64 (x)\r | |
221 | #define HTONLL(x) NTOHLL(x)\r | |
222 | #define NTOHLLL(x) Ip6Swap128 (x)\r | |
223 | #define HTONLLL(x) NTOHLLL(x)\r | |
224 | \r | |
225 | //\r | |
226 | // Test the IP's attribute, All the IPs are in host byte order.\r | |
227 | //\r | |
228 | #define IP4_IS_MULTICAST(Ip) (((Ip) & 0xF0000000) == 0xE0000000)\r | |
229 | #define IP4_IS_LOCAL_BROADCAST(Ip) ((Ip) == 0xFFFFFFFF)\r | |
230 | #define IP4_NET_EQUAL(Ip1, Ip2, NetMask) (((Ip1) & (NetMask)) == ((Ip2) & (NetMask)))\r | |
231 | #define IP4_IS_VALID_NETMASK(Ip) (NetGetMaskLength (Ip) != IP4_MASK_NUM)\r | |
232 | \r | |
233 | #define IP6_IS_MULTICAST(Ip6) (((Ip6)->Addr[0]) == 0xFF)\r | |
234 | \r | |
235 | //\r | |
236 | // Convert the EFI_IP4_ADDRESS to plain UINT32 IP4 address.\r | |
237 | //\r | |
238 | #define EFI_IP4(EfiIpAddr) (*(IP4_ADDR *) ((EfiIpAddr).Addr))\r | |
239 | #define EFI_NTOHL(EfiIp) (NTOHL (EFI_IP4 ((EfiIp))))\r | |
240 | #define EFI_IP4_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv4_ADDRESS)) == 0)\r | |
241 | \r | |
242 | #define EFI_IP6_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv6_ADDRESS)) == 0)\r | |
243 | \r | |
244 | #define IP4_COPY_ADDRESS(Dest, Src) (CopyMem ((Dest), (Src), sizeof (EFI_IPv4_ADDRESS)))\r | |
245 | #define IP6_COPY_ADDRESS(Dest, Src) (CopyMem ((Dest), (Src), sizeof (EFI_IPv6_ADDRESS)))\r | |
246 | #define IP6_COPY_LINK_ADDRESS(Mac1, Mac2) (CopyMem ((Mac1), (Mac2), sizeof (EFI_MAC_ADDRESS)))\r | |
247 | \r | |
248 | //\r | |
249 | // The debug level definition. This value is also used as the\r | |
250 | // syslog's servity level. Don't change it.\r | |
251 | //\r | |
252 | #define NETDEBUG_LEVEL_TRACE 5\r | |
253 | #define NETDEBUG_LEVEL_WARNING 4\r | |
254 | #define NETDEBUG_LEVEL_ERROR 3\r | |
255 | \r | |
256 | //\r | |
257 | // Network debug message is sent out as syslog packet.\r | |
258 | //\r | |
259 | #define NET_SYSLOG_FACILITY 16 // Syslog local facility local use\r | |
260 | #define NET_SYSLOG_PACKET_LEN 512\r | |
261 | #define NET_SYSLOG_TX_TIMEOUT (500 * 1000 * 10) // 500ms\r | |
262 | #define NET_DEBUG_MSG_LEN 470 // 512 - (ether+ip4+udp4 head length)\r | |
263 | \r | |
264 | //\r | |
265 | // The debug output expects the ASCII format string, Use %a to print ASCII\r | |
266 | // string, and %s to print UNICODE string. PrintArg must be enclosed in ().\r | |
267 | // For example: NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name));\r | |
268 | //\r | |
269 | #define NET_DEBUG_TRACE(Module, PrintArg) \\r | |
270 | NetDebugOutput ( \\r | |
271 | NETDEBUG_LEVEL_TRACE, \\r | |
272 | Module, \\r | |
273 | __FILE__, \\r | |
274 | __LINE__, \\r | |
275 | NetDebugASPrint PrintArg \\r | |
276 | )\r | |
277 | \r | |
278 | #define NET_DEBUG_WARNING(Module, PrintArg) \\r | |
279 | NetDebugOutput ( \\r | |
280 | NETDEBUG_LEVEL_WARNING, \\r | |
281 | Module, \\r | |
282 | __FILE__, \\r | |
283 | __LINE__, \\r | |
284 | NetDebugASPrint PrintArg \\r | |
285 | )\r | |
286 | \r | |
287 | #define NET_DEBUG_ERROR(Module, PrintArg) \\r | |
288 | NetDebugOutput ( \\r | |
289 | NETDEBUG_LEVEL_ERROR, \\r | |
290 | Module, \\r | |
291 | __FILE__, \\r | |
292 | __LINE__, \\r | |
293 | NetDebugASPrint PrintArg \\r | |
294 | )\r | |
295 | \r | |
296 | /**\r | |
297 | Allocate a buffer, then format the message to it. This is a\r | |
298 | help function for the NET_DEBUG_XXX macros. The PrintArg of\r | |
299 | these macros treats the variable length print parameters as a\r | |
300 | single parameter, and pass it to the NetDebugASPrint. For\r | |
301 | example, NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name))\r | |
302 | if extracted to:\r | |
303 | \r | |
304 | NetDebugOutput (\r | |
305 | NETDEBUG_LEVEL_TRACE,\r | |
306 | "Tcp",\r | |
307 | __FILE__,\r | |
308 | __LINE__,\r | |
309 | NetDebugASPrint ("State transit to %a\n", Name)\r | |
310 | )\r | |
311 | \r | |
312 | @param Format The ASCII format string.\r | |
313 | @param ... The variable length parameter whose format is determined\r | |
314 | by the Format string.\r | |
315 | \r | |
316 | @return The buffer containing the formatted message,\r | |
317 | or NULL if memory allocation failed.\r | |
318 | \r | |
319 | **/\r | |
320 | CHAR8 *\r | |
321 | EFIAPI\r | |
322 | NetDebugASPrint (\r | |
323 | IN CHAR8 *Format,\r | |
324 | ...\r | |
325 | );\r | |
326 | \r | |
327 | /**\r | |
328 | Builds an UDP4 syslog packet and send it using SNP.\r | |
329 | \r | |
330 | This function will locate a instance of SNP then send the message through it.\r | |
331 | Because it isn't open the SNP BY_DRIVER, apply caution when using it.\r | |
332 | \r | |
333 | @param Level The servity level of the message.\r | |
334 | @param Module The Moudle that generates the log.\r | |
335 | @param File The file that contains the log.\r | |
336 | @param Line The exact line that contains the log.\r | |
337 | @param Message The user message to log.\r | |
338 | \r | |
339 | @retval EFI_INVALID_PARAMETER Any input parameter is invalid.\r | |
340 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the packet\r | |
341 | @retval EFI_SUCCESS The log is discard because that it is more verbose\r | |
342 | than the mNetDebugLevelMax. Or, it has been sent out.\r | |
343 | **/\r | |
344 | EFI_STATUS\r | |
345 | EFIAPI\r | |
346 | NetDebugOutput (\r | |
347 | IN UINT32 Level,\r | |
348 | IN UINT8 *Module,\r | |
349 | IN UINT8 *File,\r | |
350 | IN UINT32 Line,\r | |
351 | IN UINT8 *Message\r | |
352 | );\r | |
353 | \r | |
354 | \r | |
355 | /**\r | |
356 | Return the length of the mask.\r | |
357 | \r | |
358 | Return the length of the mask. Valid values are 0 to 32.\r | |
359 | If the mask is invalid, return the invalid length 33, which is IP4_MASK_NUM.\r | |
360 | NetMask is in the host byte order.\r | |
361 | \r | |
362 | @param[in] NetMask The netmask to get the length from.\r | |
363 | \r | |
364 | @return The length of the netmask, or IP4_MASK_NUM (33) if the mask is invalid.\r | |
365 | \r | |
366 | **/\r | |
367 | INTN\r | |
368 | EFIAPI\r | |
369 | NetGetMaskLength (\r | |
370 | IN IP4_ADDR NetMask\r | |
371 | );\r | |
372 | \r | |
373 | /**\r | |
374 | Return the class of the IP address, such as class A, B, C.\r | |
375 | Addr is in host byte order.\r | |
376 | \r | |
377 | The address of class A starts with 0.\r | |
378 | If the address belong to class A, return IP4_ADDR_CLASSA.\r | |
379 | The address of class B starts with 10.\r | |
380 | If the address belong to class B, return IP4_ADDR_CLASSB.\r | |
381 | The address of class C starts with 110.\r | |
382 | If the address belong to class C, return IP4_ADDR_CLASSC.\r | |
383 | The address of class D starts with 1110.\r | |
384 | If the address belong to class D, return IP4_ADDR_CLASSD.\r | |
385 | The address of class E starts with 1111.\r | |
386 | If the address belong to class E, return IP4_ADDR_CLASSE.\r | |
387 | \r | |
388 | \r | |
389 | @param[in] Addr The address to get the class from.\r | |
390 | \r | |
391 | @return IP address class, such as IP4_ADDR_CLASSA.\r | |
392 | \r | |
393 | **/\r | |
394 | INTN\r | |
395 | EFIAPI\r | |
396 | NetGetIpClass (\r | |
397 | IN IP4_ADDR Addr\r | |
398 | );\r | |
399 | \r | |
400 | /**\r | |
401 | Check whether the IP is a valid unicast address according to\r | |
402 | the netmask. If NetMask is zero, use the IP address's class to get the default mask.\r | |
403 | \r | |
404 | If Ip is 0, IP is not a valid unicast address.\r | |
405 | Class D address is used for multicasting and class E address is reserved for future. If Ip\r | |
406 | belongs to class D or class E, Ip is not a valid unicast address.\r | |
407 | If all bits of the host address of Ip are 0 or 1, Ip is not a valid unicast address.\r | |
408 | \r | |
409 | @param[in] Ip The IP to check against.\r | |
410 | @param[in] NetMask The mask of the IP.\r | |
411 | \r | |
412 | @return TRUE if Ip is a valid unicast address on the network, otherwise FALSE.\r | |
413 | \r | |
414 | **/\r | |
415 | BOOLEAN\r | |
416 | EFIAPI\r | |
417 | NetIp4IsUnicast (\r | |
418 | IN IP4_ADDR Ip,\r | |
419 | IN IP4_ADDR NetMask\r | |
420 | );\r | |
421 | \r | |
422 | /**\r | |
423 | Check whether the incoming IPv6 address is a valid unicast address.\r | |
424 | \r | |
425 | If the address is a multicast address has binary 0xFF at the start, it is not\r | |
426 | a valid unicast address. If the address is unspecified ::, it is not a valid\r | |
427 | unicast address to be assigned to any node. If the address is loopback address\r | |
428 | ::1, it is also not a valid unicast address to be assigned to any physical\r | |
429 | interface.\r | |
430 | \r | |
431 | @param[in] Ip6 The IPv6 address to check against.\r | |
432 | \r | |
433 | @return TRUE if Ip6 is a valid unicast address on the network, otherwise FALSE.\r | |
434 | \r | |
435 | **/\r | |
436 | BOOLEAN\r | |
437 | EFIAPI\r | |
438 | NetIp6IsValidUnicast (\r | |
439 | IN EFI_IPv6_ADDRESS *Ip6\r | |
440 | );\r | |
441 | \r | |
442 | \r | |
443 | /**\r | |
444 | Check whether the incoming Ipv6 address is the unspecified address or not.\r | |
445 | \r | |
446 | @param[in] Ip6 - Ip6 address, in network order.\r | |
447 | \r | |
448 | @retval TRUE - Yes, incoming Ipv6 address is the unspecified address.\r | |
449 | @retval FALSE - The incoming Ipv6 address is not the unspecified address\r | |
450 | \r | |
451 | **/\r | |
452 | BOOLEAN\r | |
453 | EFIAPI\r | |
454 | NetIp6IsUnspecifiedAddr (\r | |
455 | IN EFI_IPv6_ADDRESS *Ip6\r | |
456 | );\r | |
457 | \r | |
458 | /**\r | |
459 | Check whether the incoming Ipv6 address is a link-local address.\r | |
460 | \r | |
461 | @param[in] Ip6 - Ip6 address, in network order.\r | |
462 | \r | |
463 | @retval TRUE - The incoming Ipv6 address is a link-local address.\r | |
464 | @retval FALSE - The incoming Ipv6 address is not a link-local address.\r | |
465 | \r | |
466 | **/\r | |
467 | BOOLEAN\r | |
468 | EFIAPI\r | |
469 | NetIp6IsLinkLocalAddr (\r | |
470 | IN EFI_IPv6_ADDRESS *Ip6\r | |
471 | );\r | |
472 | \r | |
473 | /**\r | |
474 | Check whether the Ipv6 address1 and address2 are on the connected network.\r | |
475 | \r | |
476 | @param[in] Ip1 - Ip6 address1, in network order.\r | |
477 | @param[in] Ip2 - Ip6 address2, in network order.\r | |
478 | @param[in] PrefixLength - The prefix length of the checking net.\r | |
479 | \r | |
480 | @retval TRUE - Yes, the Ipv6 address1 and address2 are connected.\r | |
481 | @retval FALSE - No the Ipv6 address1 and address2 are not connected.\r | |
482 | \r | |
483 | **/\r | |
484 | BOOLEAN\r | |
485 | EFIAPI\r | |
486 | NetIp6IsNetEqual (\r | |
487 | EFI_IPv6_ADDRESS *Ip1,\r | |
488 | EFI_IPv6_ADDRESS *Ip2,\r | |
489 | UINT8 PrefixLength\r | |
490 | );\r | |
491 | \r | |
492 | /**\r | |
493 | Switches the endianess of an IPv6 address.\r | |
494 | \r | |
495 | This function swaps the bytes in a 128-bit IPv6 address to switch the value\r | |
496 | from little endian to big endian or vice versa. The byte swapped value is\r | |
497 | returned.\r | |
498 | \r | |
499 | @param Ip6 Points to an IPv6 address.\r | |
500 | \r | |
501 | @return The byte swapped IPv6 address.\r | |
502 | \r | |
503 | **/\r | |
504 | EFI_IPv6_ADDRESS *\r | |
505 | EFIAPI\r | |
506 | Ip6Swap128 (\r | |
507 | EFI_IPv6_ADDRESS *Ip6\r | |
508 | );\r | |
509 | \r | |
510 | extern IP4_ADDR gIp4AllMasks[IP4_MASK_NUM];\r | |
511 | \r | |
512 | \r | |
513 | extern EFI_IPv4_ADDRESS mZeroIp4Addr;\r | |
514 | \r | |
515 | #define NET_IS_DIGIT(Ch) (('0' <= (Ch)) && ((Ch) <= '9'))\r | |
516 | #define NET_ROUNDUP(size, unit) (((size) + (unit) - 1) & (~((unit) - 1)))\r | |
517 | #define NET_IS_LOWER_CASE_CHAR(Ch) (('a' <= (Ch)) && ((Ch) <= 'z'))\r | |
518 | #define NET_IS_UPPER_CASE_CHAR(Ch) (('A' <= (Ch)) && ((Ch) <= 'Z'))\r | |
519 | \r | |
520 | #define TICKS_PER_MS 10000U\r | |
521 | #define TICKS_PER_SECOND 10000000U\r | |
522 | \r | |
523 | #define NET_RANDOM(Seed) ((UINT32) ((UINT32) (Seed) * 1103515245UL + 12345) % 4294967295UL)\r | |
524 | \r | |
525 | /**\r | |
526 | Extract a UINT32 from a byte stream.\r | |
527 | \r | |
528 | This function copies a UINT32 from a byte stream, and then converts it from Network\r | |
529 | byte order to host byte order. Use this function to avoid alignment error.\r | |
530 | \r | |
531 | @param[in] Buf The buffer to extract the UINT32.\r | |
532 | \r | |
533 | @return The UINT32 extracted.\r | |
534 | \r | |
535 | **/\r | |
536 | UINT32\r | |
537 | EFIAPI\r | |
538 | NetGetUint32 (\r | |
539 | IN UINT8 *Buf\r | |
540 | );\r | |
541 | \r | |
542 | /**\r | |
543 | Puts a UINT32 into the byte stream in network byte order.\r | |
544 | \r | |
545 | Converts a UINT32 from host byte order to network byte order, then copies it to the\r | |
546 | byte stream.\r | |
547 | \r | |
548 | @param[in, out] Buf The buffer in which to put the UINT32.\r | |
549 | @param[in] Data The data to be converted and put into the byte stream.\r | |
550 | \r | |
551 | **/\r | |
552 | VOID\r | |
553 | EFIAPI\r | |
554 | NetPutUint32 (\r | |
555 | IN OUT UINT8 *Buf,\r | |
556 | IN UINT32 Data\r | |
557 | );\r | |
558 | \r | |
559 | /**\r | |
560 | Initialize a random seed using current time and monotonic count.\r | |
561 | \r | |
562 | Get current time and monotonic count first. Then initialize a random seed \r | |
563 | based on some basic mathematics operation on the hour, day, minute, second,\r | |
564 | nanosecond and year of the current time and the monotonic count value.\r | |
565 | \r | |
566 | @return The random seed initialized with current time.\r | |
567 | \r | |
568 | **/\r | |
569 | UINT32\r | |
570 | EFIAPI\r | |
571 | NetRandomInitSeed (\r | |
572 | VOID\r | |
573 | );\r | |
574 | \r | |
575 | \r | |
576 | #define NET_LIST_USER_STRUCT(Entry, Type, Field) \\r | |
577 | BASE_CR(Entry, Type, Field)\r | |
578 | \r | |
579 | #define NET_LIST_USER_STRUCT_S(Entry, Type, Field, Sig) \\r | |
580 | CR(Entry, Type, Field, Sig)\r | |
581 | \r | |
582 | //\r | |
583 | // Iterate through the double linked list. It is NOT delete safe\r | |
584 | //\r | |
585 | #define NET_LIST_FOR_EACH(Entry, ListHead) \\r | |
586 | for(Entry = (ListHead)->ForwardLink; Entry != (ListHead); Entry = Entry->ForwardLink)\r | |
587 | \r | |
588 | //\r | |
589 | // Iterate through the double linked list. This is delete-safe.\r | |
590 | // Don't touch NextEntry. Also, don't use this macro if list\r | |
591 | // entries other than the Entry may be deleted when processing\r | |
592 | // the current Entry.\r | |
593 | //\r | |
594 | #define NET_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \\r | |
595 | for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink; \\r | |
596 | Entry != (ListHead); \\r | |
597 | Entry = NextEntry, NextEntry = Entry->ForwardLink \\r | |
598 | )\r | |
599 | \r | |
600 | //\r | |
601 | // Make sure the list isn't empty before getting the first/last record.\r | |
602 | //\r | |
603 | #define NET_LIST_HEAD(ListHead, Type, Field) \\r | |
604 | NET_LIST_USER_STRUCT((ListHead)->ForwardLink, Type, Field)\r | |
605 | \r | |
606 | #define NET_LIST_TAIL(ListHead, Type, Field) \\r | |
607 | NET_LIST_USER_STRUCT((ListHead)->BackLink, Type, Field)\r | |
608 | \r | |
609 | \r | |
610 | /**\r | |
611 | Remove the first node entry on the list, and return the removed node entry.\r | |
612 | \r | |
613 | Removes the first node entry from a doubly linked list. It is up to the caller of\r | |
614 | this function to release the memory used by the first node, if that is required. On\r | |
615 | exit, the removed node is returned.\r | |
616 | \r | |
617 | If Head is NULL, then ASSERT().\r | |
618 | If Head was not initialized, then ASSERT().\r | |
619 | If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r | |
620 | linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r | |
621 | then ASSERT().\r | |
622 | \r | |
623 | @param[in, out] Head The list header.\r | |
624 | \r | |
625 | @return The first node entry that is removed from the list, NULL if the list is empty.\r | |
626 | \r | |
627 | **/\r | |
628 | LIST_ENTRY *\r | |
629 | EFIAPI\r | |
630 | NetListRemoveHead (\r | |
631 | IN OUT LIST_ENTRY *Head\r | |
632 | );\r | |
633 | \r | |
634 | /**\r | |
635 | Remove the last node entry on the list and return the removed node entry.\r | |
636 | \r | |
637 | Removes the last node entry from a doubly linked list. It is up to the caller of\r | |
638 | this function to release the memory used by the first node, if that is required. On\r | |
639 | exit, the removed node is returned.\r | |
640 | \r | |
641 | If Head is NULL, then ASSERT().\r | |
642 | If Head was not initialized, then ASSERT().\r | |
643 | If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r | |
644 | linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r | |
645 | then ASSERT().\r | |
646 | \r | |
647 | @param[in, out] Head The list head.\r | |
648 | \r | |
649 | @return The last node entry that is removed from the list, NULL if the list is empty.\r | |
650 | \r | |
651 | **/\r | |
652 | LIST_ENTRY *\r | |
653 | EFIAPI\r | |
654 | NetListRemoveTail (\r | |
655 | IN OUT LIST_ENTRY *Head\r | |
656 | );\r | |
657 | \r | |
658 | /**\r | |
659 | Insert a new node entry after a designated node entry of a doubly linked list.\r | |
660 | \r | |
661 | Inserts a new node entry designated by NewEntry after the node entry designated by PrevEntry\r | |
662 | of the doubly linked list.\r | |
663 | \r | |
664 | @param[in, out] PrevEntry The entry after which to insert.\r | |
665 | @param[in, out] NewEntry The new entry to insert.\r | |
666 | \r | |
667 | **/\r | |
668 | VOID\r | |
669 | EFIAPI\r | |
670 | NetListInsertAfter (\r | |
671 | IN OUT LIST_ENTRY *PrevEntry,\r | |
672 | IN OUT LIST_ENTRY *NewEntry\r | |
673 | );\r | |
674 | \r | |
675 | /**\r | |
676 | Insert a new node entry before a designated node entry of a doubly linked list.\r | |
677 | \r | |
678 | Inserts a new node entry designated by NewEntry before the node entry designated by PostEntry\r | |
679 | of the doubly linked list.\r | |
680 | \r | |
681 | @param[in, out] PostEntry The entry to insert before.\r | |
682 | @param[in, out] NewEntry The new entry to insert.\r | |
683 | \r | |
684 | **/\r | |
685 | VOID\r | |
686 | EFIAPI\r | |
687 | NetListInsertBefore (\r | |
688 | IN OUT LIST_ENTRY *PostEntry,\r | |
689 | IN OUT LIST_ENTRY *NewEntry\r | |
690 | );\r | |
691 | \r | |
692 | /**\r | |
693 | Callback function which provided by user to remove one node in NetDestroyLinkList process.\r | |
694 | \r | |
695 | @param[in] Entry The entry to be removed.\r | |
696 | @param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.\r | |
697 | \r | |
698 | @retval EFI_SUCCESS The entry has been removed successfully.\r | |
699 | @retval Others Fail to remove the entry.\r | |
700 | \r | |
701 | **/\r | |
702 | typedef\r | |
703 | EFI_STATUS\r | |
704 | (EFIAPI *NET_DESTROY_LINK_LIST_CALLBACK) (\r | |
705 | IN LIST_ENTRY *Entry,\r | |
706 | IN VOID *Context OPTIONAL\r | |
707 | );\r | |
708 | \r | |
709 | /**\r | |
710 | Safe destroy nodes in a linked list, and return the length of the list after all possible operations finished.\r | |
711 | \r | |
712 | Destroy network children list by list traversals is not safe due to graph dependencies between nodes.\r | |
713 | This function performs a safe traversal to destroy these nodes by checking to see if the node being destroyed\r | |
714 | has been removed from the list or not.\r | |
715 | If it has been removed, then restart the traversal from the head.\r | |
716 | If it hasn't been removed, then continue with the next node directly.\r | |
717 | This function will end the iterate and return the CallBack's last return value if error happens,\r | |
718 | or retrun EFI_SUCCESS if 2 complete passes are made with no changes in the number of children in the list. \r | |
719 | \r | |
720 | @param[in] List The head of the list.\r | |
721 | @param[in] CallBack Pointer to the callback function to destroy one node in the list.\r | |
722 | @param[in] Context Pointer to the callback function's context: corresponds to the\r | |
723 | parameter Context in NET_DESTROY_LINK_LIST_CALLBACK.\r | |
724 | @param[out] ListLength The length of the link list if the function returns successfully.\r | |
725 | \r | |
726 | @retval EFI_SUCCESS Two complete passes are made with no changes in the number of children.\r | |
727 | @retval EFI_INVALID_PARAMETER The input parameter is invalid.\r | |
728 | @retval Others Return the CallBack's last return value.\r | |
729 | \r | |
730 | **/\r | |
731 | EFI_STATUS\r | |
732 | EFIAPI\r | |
733 | NetDestroyLinkList (\r | |
734 | IN LIST_ENTRY *List,\r | |
735 | IN NET_DESTROY_LINK_LIST_CALLBACK CallBack,\r | |
736 | IN VOID *Context, OPTIONAL\r | |
737 | OUT UINTN *ListLength OPTIONAL\r | |
738 | );\r | |
739 | \r | |
740 | /**\r | |
741 | This function checks the input Handle to see if it's one of these handles in ChildHandleBuffer.\r | |
742 | \r | |
743 | @param[in] Handle Handle to be checked.\r | |
744 | @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer.\r | |
745 | @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r | |
746 | if NumberOfChildren is 0.\r | |
747 | \r | |
748 | @retval TURE Found the input Handle in ChildHandleBuffer.\r | |
749 | @retval FALSE Can't find the input Handle in ChildHandleBuffer.\r | |
750 | \r | |
751 | **/\r | |
752 | BOOLEAN\r | |
753 | EFIAPI\r | |
754 | NetIsInHandleBuffer (\r | |
755 | IN EFI_HANDLE Handle,\r | |
756 | IN UINTN NumberOfChildren,\r | |
757 | IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r | |
758 | );\r | |
759 | \r | |
760 | //\r | |
761 | // Object container: EFI network stack spec defines various kinds of\r | |
762 | // tokens. The drivers can share code to manage those objects.\r | |
763 | //\r | |
764 | typedef struct {\r | |
765 | LIST_ENTRY Link;\r | |
766 | VOID *Key;\r | |
767 | VOID *Value;\r | |
768 | } NET_MAP_ITEM;\r | |
769 | \r | |
770 | typedef struct {\r | |
771 | LIST_ENTRY Used;\r | |
772 | LIST_ENTRY Recycled;\r | |
773 | UINTN Count;\r | |
774 | } NET_MAP;\r | |
775 | \r | |
776 | #define NET_MAP_INCREAMENT 64\r | |
777 | \r | |
778 | /**\r | |
779 | Initialize the netmap. Netmap is a reposity to keep the <Key, Value> pairs.\r | |
780 | \r | |
781 | Initialize the forward and backward links of two head nodes donated by Map->Used\r | |
782 | and Map->Recycled of two doubly linked lists.\r | |
783 | Initializes the count of the <Key, Value> pairs in the netmap to zero.\r | |
784 | \r | |
785 | If Map is NULL, then ASSERT().\r | |
786 | If the address of Map->Used is NULL, then ASSERT().\r | |
787 | If the address of Map->Recycled is NULl, then ASSERT().\r | |
788 | \r | |
789 | @param[in, out] Map The netmap to initialize.\r | |
790 | \r | |
791 | **/\r | |
792 | VOID\r | |
793 | EFIAPI\r | |
794 | NetMapInit (\r | |
795 | IN OUT NET_MAP *Map\r | |
796 | );\r | |
797 | \r | |
798 | /**\r | |
799 | To clean up the netmap, that is, release allocated memories.\r | |
800 | \r | |
801 | Removes all nodes of the Used doubly linked list and frees memory of all related netmap items.\r | |
802 | Removes all nodes of the Recycled doubly linked list and free memory of all related netmap items.\r | |
803 | The number of the <Key, Value> pairs in the netmap is set to zero.\r | |
804 | \r | |
805 | If Map is NULL, then ASSERT().\r | |
806 | \r | |
807 | @param[in, out] Map The netmap to clean up.\r | |
808 | \r | |
809 | **/\r | |
810 | VOID\r | |
811 | EFIAPI\r | |
812 | NetMapClean (\r | |
813 | IN OUT NET_MAP *Map\r | |
814 | );\r | |
815 | \r | |
816 | /**\r | |
817 | Test whether the netmap is empty and return true if it is.\r | |
818 | \r | |
819 | If the number of the <Key, Value> pairs in the netmap is zero, return TRUE.\r | |
820 | \r | |
821 | If Map is NULL, then ASSERT().\r | |
822 | \r | |
823 | \r | |
824 | @param[in] Map The net map to test.\r | |
825 | \r | |
826 | @return TRUE if the netmap is empty, otherwise FALSE.\r | |
827 | \r | |
828 | **/\r | |
829 | BOOLEAN\r | |
830 | EFIAPI\r | |
831 | NetMapIsEmpty (\r | |
832 | IN NET_MAP *Map\r | |
833 | );\r | |
834 | \r | |
835 | /**\r | |
836 | Return the number of the <Key, Value> pairs in the netmap.\r | |
837 | \r | |
838 | @param[in] Map The netmap to get the entry number.\r | |
839 | \r | |
840 | @return The entry number in the netmap.\r | |
841 | \r | |
842 | **/\r | |
843 | UINTN\r | |
844 | EFIAPI\r | |
845 | NetMapGetCount (\r | |
846 | IN NET_MAP *Map\r | |
847 | );\r | |
848 | \r | |
849 | /**\r | |
850 | Allocate an item to save the <Key, Value> pair to the head of the netmap.\r | |
851 | \r | |
852 | Allocate an item to save the <Key, Value> pair and add corresponding node entry\r | |
853 | to the beginning of the Used doubly linked list. The number of the <Key, Value>\r | |
854 | pairs in the netmap increase by 1.\r | |
855 | \r | |
856 | If Map is NULL, then ASSERT().\r | |
857 | \r | |
858 | @param[in, out] Map The netmap to insert into.\r | |
859 | @param[in] Key The user's key.\r | |
860 | @param[in] Value The user's value for the key.\r | |
861 | \r | |
862 | @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r | |
863 | @retval EFI_SUCCESS The item is inserted to the head.\r | |
864 | \r | |
865 | **/\r | |
866 | EFI_STATUS\r | |
867 | EFIAPI\r | |
868 | NetMapInsertHead (\r | |
869 | IN OUT NET_MAP *Map,\r | |
870 | IN VOID *Key,\r | |
871 | IN VOID *Value OPTIONAL\r | |
872 | );\r | |
873 | \r | |
874 | /**\r | |
875 | Allocate an item to save the <Key, Value> pair to the tail of the netmap.\r | |
876 | \r | |
877 | Allocate an item to save the <Key, Value> pair and add corresponding node entry\r | |
878 | to the tail of the Used doubly linked list. The number of the <Key, Value>\r | |
879 | pairs in the netmap increase by 1.\r | |
880 | \r | |
881 | If Map is NULL, then ASSERT().\r | |
882 | \r | |
883 | @param[in, out] Map The netmap to insert into.\r | |
884 | @param[in] Key The user's key.\r | |
885 | @param[in] Value The user's value for the key.\r | |
886 | \r | |
887 | @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r | |
888 | @retval EFI_SUCCESS The item is inserted to the tail.\r | |
889 | \r | |
890 | **/\r | |
891 | EFI_STATUS\r | |
892 | EFIAPI\r | |
893 | NetMapInsertTail (\r | |
894 | IN OUT NET_MAP *Map,\r | |
895 | IN VOID *Key,\r | |
896 | IN VOID *Value OPTIONAL\r | |
897 | );\r | |
898 | \r | |
899 | /**\r | |
900 | Finds the key in the netmap and returns the point to the item containing the Key.\r | |
901 | \r | |
902 | Iterate the Used doubly linked list of the netmap to get every item. Compare the key of every\r | |
903 | item with the key to search. It returns the point to the item contains the Key if found.\r | |
904 | \r | |
905 | If Map is NULL, then ASSERT().\r | |
906 | \r | |
907 | @param[in] Map The netmap to search within.\r | |
908 | @param[in] Key The key to search.\r | |
909 | \r | |
910 | @return The point to the item contains the Key, or NULL if Key isn't in the map.\r | |
911 | \r | |
912 | **/\r | |
913 | NET_MAP_ITEM *\r | |
914 | EFIAPI\r | |
915 | NetMapFindKey (\r | |
916 | IN NET_MAP *Map,\r | |
917 | IN VOID *Key\r | |
918 | );\r | |
919 | \r | |
920 | /**\r | |
921 | Remove the node entry of the item from the netmap and return the key of the removed item.\r | |
922 | \r | |
923 | Remove the node entry of the item from the Used doubly linked list of the netmap.\r | |
924 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r | |
925 | entry of the item to the Recycled doubly linked list of the netmap. If Value is not NULL,\r | |
926 | Value will point to the value of the item. It returns the key of the removed item.\r | |
927 | \r | |
928 | If Map is NULL, then ASSERT().\r | |
929 | If Item is NULL, then ASSERT().\r | |
930 | if item in not in the netmap, then ASSERT().\r | |
931 | \r | |
932 | @param[in, out] Map The netmap to remove the item from.\r | |
933 | @param[in, out] Item The item to remove.\r | |
934 | @param[out] Value The variable to receive the value if not NULL.\r | |
935 | \r | |
936 | @return The key of the removed item.\r | |
937 | \r | |
938 | **/\r | |
939 | VOID *\r | |
940 | EFIAPI\r | |
941 | NetMapRemoveItem (\r | |
942 | IN OUT NET_MAP *Map,\r | |
943 | IN OUT NET_MAP_ITEM *Item,\r | |
944 | OUT VOID **Value OPTIONAL\r | |
945 | );\r | |
946 | \r | |
947 | /**\r | |
948 | Remove the first node entry on the netmap and return the key of the removed item.\r | |
949 | \r | |
950 | Remove the first node entry from the Used doubly linked list of the netmap.\r | |
951 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r | |
952 | entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r | |
953 | parameter Value will point to the value of the item. It returns the key of the removed item.\r | |
954 | \r | |
955 | If Map is NULL, then ASSERT().\r | |
956 | If the Used doubly linked list is empty, then ASSERT().\r | |
957 | \r | |
958 | @param[in, out] Map The netmap to remove the head from.\r | |
959 | @param[out] Value The variable to receive the value if not NULL.\r | |
960 | \r | |
961 | @return The key of the item removed.\r | |
962 | \r | |
963 | **/\r | |
964 | VOID *\r | |
965 | EFIAPI\r | |
966 | NetMapRemoveHead (\r | |
967 | IN OUT NET_MAP *Map,\r | |
968 | OUT VOID **Value OPTIONAL\r | |
969 | );\r | |
970 | \r | |
971 | /**\r | |
972 | Remove the last node entry on the netmap and return the key of the removed item.\r | |
973 | \r | |
974 | Remove the last node entry from the Used doubly linked list of the netmap.\r | |
975 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r | |
976 | entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r | |
977 | parameter Value will point to the value of the item. It returns the key of the removed item.\r | |
978 | \r | |
979 | If Map is NULL, then ASSERT().\r | |
980 | If the Used doubly linked list is empty, then ASSERT().\r | |
981 | \r | |
982 | @param[in, out] Map The netmap to remove the tail from.\r | |
983 | @param[out] Value The variable to receive the value if not NULL.\r | |
984 | \r | |
985 | @return The key of the item removed.\r | |
986 | \r | |
987 | **/\r | |
988 | VOID *\r | |
989 | EFIAPI\r | |
990 | NetMapRemoveTail (\r | |
991 | IN OUT NET_MAP *Map,\r | |
992 | OUT VOID **Value OPTIONAL\r | |
993 | );\r | |
994 | \r | |
995 | typedef\r | |
996 | EFI_STATUS\r | |
997 | (EFIAPI *NET_MAP_CALLBACK) (\r | |
998 | IN NET_MAP *Map,\r | |
999 | IN NET_MAP_ITEM *Item,\r | |
1000 | IN VOID *Arg\r | |
1001 | );\r | |
1002 | \r | |
1003 | /**\r | |
1004 | Iterate through the netmap and call CallBack for each item.\r | |
1005 | \r | |
1006 | It will contiue the traverse if CallBack returns EFI_SUCCESS, otherwise, break\r | |
1007 | from the loop. It returns the CallBack's last return value. This function is\r | |
1008 | delete safe for the current item.\r | |
1009 | \r | |
1010 | If Map is NULL, then ASSERT().\r | |
1011 | If CallBack is NULL, then ASSERT().\r | |
1012 | \r | |
1013 | @param[in] Map The Map to iterate through.\r | |
1014 | @param[in] CallBack The callback function to call for each item.\r | |
1015 | @param[in] Arg The opaque parameter to the callback.\r | |
1016 | \r | |
1017 | @retval EFI_SUCCESS There is no item in the netmap, or CallBack for each item\r | |
1018 | returns EFI_SUCCESS.\r | |
1019 | @retval Others It returns the CallBack's last return value.\r | |
1020 | \r | |
1021 | **/\r | |
1022 | EFI_STATUS\r | |
1023 | EFIAPI\r | |
1024 | NetMapIterate (\r | |
1025 | IN NET_MAP *Map,\r | |
1026 | IN NET_MAP_CALLBACK CallBack,\r | |
1027 | IN VOID *Arg OPTIONAL\r | |
1028 | );\r | |
1029 | \r | |
1030 | \r | |
1031 | //\r | |
1032 | // Helper functions to implement driver binding and service binding protocols.\r | |
1033 | //\r | |
1034 | /**\r | |
1035 | Create a child of the service that is identified by ServiceBindingGuid.\r | |
1036 | \r | |
1037 | Get the ServiceBinding Protocol first, then use it to create a child.\r | |
1038 | \r | |
1039 | If ServiceBindingGuid is NULL, then ASSERT().\r | |
1040 | If ChildHandle is NULL, then ASSERT().\r | |
1041 | \r | |
1042 | @param[in] Controller The controller which has the service installed.\r | |
1043 | @param[in] Image The image handle used to open service.\r | |
1044 | @param[in] ServiceBindingGuid The service's Guid.\r | |
1045 | @param[in, out] ChildHandle The handle to receive the created child.\r | |
1046 | \r | |
1047 | @retval EFI_SUCCESS The child was successfully created.\r | |
1048 | @retval Others Failed to create the child.\r | |
1049 | \r | |
1050 | **/\r | |
1051 | EFI_STATUS\r | |
1052 | EFIAPI\r | |
1053 | NetLibCreateServiceChild (\r | |
1054 | IN EFI_HANDLE Controller,\r | |
1055 | IN EFI_HANDLE Image,\r | |
1056 | IN EFI_GUID *ServiceBindingGuid,\r | |
1057 | IN OUT EFI_HANDLE *ChildHandle\r | |
1058 | );\r | |
1059 | \r | |
1060 | /**\r | |
1061 | Destroy a child of the service that is identified by ServiceBindingGuid.\r | |
1062 | \r | |
1063 | Get the ServiceBinding Protocol first, then use it to destroy a child.\r | |
1064 | \r | |
1065 | If ServiceBindingGuid is NULL, then ASSERT().\r | |
1066 | \r | |
1067 | @param[in] Controller The controller which has the service installed.\r | |
1068 | @param[in] Image The image handle used to open service.\r | |
1069 | @param[in] ServiceBindingGuid The service's Guid.\r | |
1070 | @param[in] ChildHandle The child to destroy.\r | |
1071 | \r | |
1072 | @retval EFI_SUCCESS The child was destroyed.\r | |
1073 | @retval Others Failed to destroy the child.\r | |
1074 | \r | |
1075 | **/\r | |
1076 | EFI_STATUS\r | |
1077 | EFIAPI\r | |
1078 | NetLibDestroyServiceChild (\r | |
1079 | IN EFI_HANDLE Controller,\r | |
1080 | IN EFI_HANDLE Image,\r | |
1081 | IN EFI_GUID *ServiceBindingGuid,\r | |
1082 | IN EFI_HANDLE ChildHandle\r | |
1083 | );\r | |
1084 | \r | |
1085 | /**\r | |
1086 | Get handle with Simple Network Protocol installed on it.\r | |
1087 | \r | |
1088 | There should be MNP Service Binding Protocol installed on the input ServiceHandle.\r | |
1089 | If Simple Network Protocol is already installed on the ServiceHandle, the\r | |
1090 | ServiceHandle will be returned. If SNP is not installed on the ServiceHandle,\r | |
1091 | try to find its parent handle with SNP installed.\r | |
1092 | \r | |
1093 | @param[in] ServiceHandle The handle where network service binding protocols are\r | |
1094 | installed on.\r | |
1095 | @param[out] Snp The pointer to store the address of the SNP instance.\r | |
1096 | This is an optional parameter that may be NULL.\r | |
1097 | \r | |
1098 | @return The SNP handle, or NULL if not found.\r | |
1099 | \r | |
1100 | **/\r | |
1101 | EFI_HANDLE\r | |
1102 | EFIAPI\r | |
1103 | NetLibGetSnpHandle (\r | |
1104 | IN EFI_HANDLE ServiceHandle,\r | |
1105 | OUT EFI_SIMPLE_NETWORK_PROTOCOL **Snp OPTIONAL\r | |
1106 | );\r | |
1107 | \r | |
1108 | /**\r | |
1109 | Retrieve VLAN ID of a VLAN device handle.\r | |
1110 | \r | |
1111 | Search VLAN device path node in Device Path of specified ServiceHandle and\r | |
1112 | return its VLAN ID. If no VLAN device path node found, then this ServiceHandle\r | |
1113 | is not a VLAN device handle, and 0 will be returned.\r | |
1114 | \r | |
1115 | @param[in] ServiceHandle The handle where network service binding protocols are\r | |
1116 | installed on.\r | |
1117 | \r | |
1118 | @return VLAN ID of the device handle, or 0 if not a VLAN device.\r | |
1119 | \r | |
1120 | **/\r | |
1121 | UINT16\r | |
1122 | EFIAPI\r | |
1123 | NetLibGetVlanId (\r | |
1124 | IN EFI_HANDLE ServiceHandle\r | |
1125 | );\r | |
1126 | \r | |
1127 | /**\r | |
1128 | Find VLAN device handle with specified VLAN ID.\r | |
1129 | \r | |
1130 | The VLAN child device handle is created by VLAN Config Protocol on ControllerHandle.\r | |
1131 | This function will append VLAN device path node to the parent device path,\r | |
1132 | and then use LocateDevicePath() to find the correct VLAN device handle.\r | |
1133 | \r | |
1134 | @param[in] ControllerHandle The handle where network service binding protocols are\r | |
1135 | installed on.\r | |
1136 | @param[in] VlanId The configured VLAN ID for the VLAN device.\r | |
1137 | \r | |
1138 | @return The VLAN device handle, or NULL if not found.\r | |
1139 | \r | |
1140 | **/\r | |
1141 | EFI_HANDLE\r | |
1142 | EFIAPI\r | |
1143 | NetLibGetVlanHandle (\r | |
1144 | IN EFI_HANDLE ControllerHandle,\r | |
1145 | IN UINT16 VlanId\r | |
1146 | );\r | |
1147 | \r | |
1148 | /**\r | |
1149 | Get MAC address associated with the network service handle.\r | |
1150 | \r | |
1151 | There should be MNP Service Binding Protocol installed on the input ServiceHandle.\r | |
1152 | If SNP is installed on the ServiceHandle or its parent handle, MAC address will\r | |
1153 | be retrieved from SNP. If no SNP found, try to get SNP mode data use MNP.\r | |
1154 | \r | |
1155 | @param[in] ServiceHandle The handle where network service binding protocols are\r | |
1156 | installed on.\r | |
1157 | @param[out] MacAddress The pointer to store the returned MAC address.\r | |
1158 | @param[out] AddressSize The length of returned MAC address.\r | |
1159 | \r | |
1160 | @retval EFI_SUCCESS MAC address was returned successfully.\r | |
1161 | @retval Others Failed to get SNP mode data.\r | |
1162 | \r | |
1163 | **/\r | |
1164 | EFI_STATUS\r | |
1165 | EFIAPI\r | |
1166 | NetLibGetMacAddress (\r | |
1167 | IN EFI_HANDLE ServiceHandle,\r | |
1168 | OUT EFI_MAC_ADDRESS *MacAddress,\r | |
1169 | OUT UINTN *AddressSize\r | |
1170 | );\r | |
1171 | \r | |
1172 | /**\r | |
1173 | Convert MAC address of the NIC associated with specified Service Binding Handle\r | |
1174 | to a unicode string. Callers are responsible for freeing the string storage.\r | |
1175 | \r | |
1176 | Locate simple network protocol associated with the Service Binding Handle and\r | |
1177 | get the mac address from SNP. Then convert the mac address into a unicode\r | |
1178 | string. It takes 2 unicode characters to represent a 1 byte binary buffer.\r | |
1179 | Plus one unicode character for the null-terminator.\r | |
1180 | \r | |
1181 | @param[in] ServiceHandle The handle where network service binding protocol is\r | |
1182 | installed.\r | |
1183 | @param[in] ImageHandle The image handle used to act as the agent handle to\r | |
1184 | get the simple network protocol. This parameter is\r | |
1185 | optional and may be NULL.\r | |
1186 | @param[out] MacString The pointer to store the address of the string\r | |
1187 | representation of the mac address.\r | |
1188 | \r | |
1189 | @retval EFI_SUCCESS Converted the mac address a unicode string successfully.\r | |
1190 | @retval EFI_OUT_OF_RESOURCES There are not enough memory resources.\r | |
1191 | @retval Others Failed to open the simple network protocol.\r | |
1192 | \r | |
1193 | **/\r | |
1194 | EFI_STATUS\r | |
1195 | EFIAPI\r | |
1196 | NetLibGetMacString (\r | |
1197 | IN EFI_HANDLE ServiceHandle,\r | |
1198 | IN EFI_HANDLE ImageHandle, OPTIONAL\r | |
1199 | OUT CHAR16 **MacString\r | |
1200 | );\r | |
1201 | \r | |
1202 | /**\r | |
1203 | Detect media status for specified network device.\r | |
1204 | \r | |
1205 | The underlying UNDI driver may or may not support reporting media status from\r | |
1206 | GET_STATUS command (PXE_STATFLAGS_GET_STATUS_NO_MEDIA_SUPPORTED). This routine\r | |
1207 | will try to invoke Snp->GetStatus() to get the media status. If media is already\r | |
1208 | present, it returns directly. If media is not present, it will stop SNP and then\r | |
1209 | restart SNP to get the latest media status. This provides an opportunity to get \r | |
1210 | the correct media status for old UNDI driver, which doesn't support reporting \r | |
1211 | media status from GET_STATUS command.\r | |
1212 | Note: there are two limitations for the current algorithm:\r | |
1213 | 1) For UNDI with this capability, when the cable is not attached, there will\r | |
1214 | be an redundant Stop/Start() process.\r | |
1215 | 2) for UNDI without this capability, in case that network cable is attached when\r | |
1216 | Snp->Initialize() is invoked while network cable is unattached later,\r | |
1217 | NetLibDetectMedia() will report MediaPresent as TRUE, causing upper layer\r | |
1218 | apps to wait for timeout time.\r | |
1219 | \r | |
1220 | @param[in] ServiceHandle The handle where network service binding protocols are\r | |
1221 | installed.\r | |
1222 | @param[out] MediaPresent The pointer to store the media status.\r | |
1223 | \r | |
1224 | @retval EFI_SUCCESS Media detection success.\r | |
1225 | @retval EFI_INVALID_PARAMETER ServiceHandle is not a valid network device handle.\r | |
1226 | @retval EFI_UNSUPPORTED The network device does not support media detection.\r | |
1227 | @retval EFI_DEVICE_ERROR SNP is in an unknown state.\r | |
1228 | \r | |
1229 | **/\r | |
1230 | EFI_STATUS\r | |
1231 | EFIAPI\r | |
1232 | NetLibDetectMedia (\r | |
1233 | IN EFI_HANDLE ServiceHandle,\r | |
1234 | OUT BOOLEAN *MediaPresent\r | |
1235 | );\r | |
1236 | \r | |
1237 | /**\r | |
1238 | Create an IPv4 device path node.\r | |
1239 | \r | |
1240 | The header type of IPv4 device path node is MESSAGING_DEVICE_PATH.\r | |
1241 | The header subtype of IPv4 device path node is MSG_IPv4_DP.\r | |
1242 | The length of the IPv4 device path node in bytes is 19.\r | |
1243 | Get other information from parameters to make up the whole IPv4 device path node.\r | |
1244 | \r | |
1245 | @param[in, out] Node The pointer to the IPv4 device path node.\r | |
1246 | @param[in] Controller The controller handle.\r | |
1247 | @param[in] LocalIp The local IPv4 address.\r | |
1248 | @param[in] LocalPort The local port.\r | |
1249 | @param[in] RemoteIp The remote IPv4 address.\r | |
1250 | @param[in] RemotePort The remote port.\r | |
1251 | @param[in] Protocol The protocol type in the IP header.\r | |
1252 | @param[in] UseDefaultAddress Whether this instance is using default address or not.\r | |
1253 | \r | |
1254 | **/\r | |
1255 | VOID\r | |
1256 | EFIAPI\r | |
1257 | NetLibCreateIPv4DPathNode (\r | |
1258 | IN OUT IPv4_DEVICE_PATH *Node,\r | |
1259 | IN EFI_HANDLE Controller,\r | |
1260 | IN IP4_ADDR LocalIp,\r | |
1261 | IN UINT16 LocalPort,\r | |
1262 | IN IP4_ADDR RemoteIp,\r | |
1263 | IN UINT16 RemotePort,\r | |
1264 | IN UINT16 Protocol,\r | |
1265 | IN BOOLEAN UseDefaultAddress\r | |
1266 | );\r | |
1267 | \r | |
1268 | /**\r | |
1269 | Create an IPv6 device path node.\r | |
1270 | \r | |
1271 | The header type of IPv6 device path node is MESSAGING_DEVICE_PATH.\r | |
1272 | The header subtype of IPv6 device path node is MSG_IPv6_DP.\r | |
1273 | The length of the IPv6 device path node in bytes is 43.\r | |
1274 | Get other information from parameters to make up the whole IPv6 device path node.\r | |
1275 | \r | |
1276 | @param[in, out] Node The pointer to the IPv6 device path node.\r | |
1277 | @param[in] Controller The controller handle.\r | |
1278 | @param[in] LocalIp The local IPv6 address.\r | |
1279 | @param[in] LocalPort The local port.\r | |
1280 | @param[in] RemoteIp The remote IPv6 address.\r | |
1281 | @param[in] RemotePort The remote port.\r | |
1282 | @param[in] Protocol The protocol type in the IP header.\r | |
1283 | \r | |
1284 | **/\r | |
1285 | VOID\r | |
1286 | EFIAPI\r | |
1287 | NetLibCreateIPv6DPathNode (\r | |
1288 | IN OUT IPv6_DEVICE_PATH *Node,\r | |
1289 | IN EFI_HANDLE Controller,\r | |
1290 | IN EFI_IPv6_ADDRESS *LocalIp,\r | |
1291 | IN UINT16 LocalPort,\r | |
1292 | IN EFI_IPv6_ADDRESS *RemoteIp,\r | |
1293 | IN UINT16 RemotePort,\r | |
1294 | IN UINT16 Protocol\r | |
1295 | );\r | |
1296 | \r | |
1297 | \r | |
1298 | /**\r | |
1299 | Find the UNDI/SNP handle from controller and protocol GUID.\r | |
1300 | \r | |
1301 | For example, IP will open an MNP child to transmit/receive\r | |
1302 | packets. When MNP is stopped, IP should also be stopped. IP\r | |
1303 | needs to find its own private data that is related the IP's\r | |
1304 | service binding instance that is installed on the UNDI/SNP handle.\r | |
1305 | The controller is then either an MNP or an ARP child handle. Note that\r | |
1306 | IP opens these handles using BY_DRIVER. Use that infomation to get the\r | |
1307 | UNDI/SNP handle.\r | |
1308 | \r | |
1309 | @param[in] Controller The protocol handle to check.\r | |
1310 | @param[in] ProtocolGuid The protocol that is related with the handle.\r | |
1311 | \r | |
1312 | @return The UNDI/SNP handle or NULL for errors.\r | |
1313 | \r | |
1314 | **/\r | |
1315 | EFI_HANDLE\r | |
1316 | EFIAPI\r | |
1317 | NetLibGetNicHandle (\r | |
1318 | IN EFI_HANDLE Controller,\r | |
1319 | IN EFI_GUID *ProtocolGuid\r | |
1320 | );\r | |
1321 | \r | |
1322 | /**\r | |
1323 | This is the default unload handle for all the network drivers.\r | |
1324 | \r | |
1325 | Disconnect the driver specified by ImageHandle from all the devices in the handle database.\r | |
1326 | Uninstall all the protocols installed in the driver entry point.\r | |
1327 | \r | |
1328 | @param[in] ImageHandle The drivers' driver image.\r | |
1329 | \r | |
1330 | @retval EFI_SUCCESS The image is unloaded.\r | |
1331 | @retval Others Failed to unload the image.\r | |
1332 | \r | |
1333 | **/\r | |
1334 | EFI_STATUS\r | |
1335 | EFIAPI\r | |
1336 | NetLibDefaultUnload (\r | |
1337 | IN EFI_HANDLE ImageHandle\r | |
1338 | );\r | |
1339 | \r | |
1340 | /**\r | |
1341 | Convert one Null-terminated ASCII string (decimal dotted) to EFI_IPv4_ADDRESS.\r | |
1342 | \r | |
1343 | @param[in] String The pointer to the Ascii string.\r | |
1344 | @param[out] Ip4Address The pointer to the converted IPv4 address.\r | |
1345 | \r | |
1346 | @retval EFI_SUCCESS Converted to an IPv4 address successfully.\r | |
1347 | @retval EFI_INVALID_PARAMETER The string is malformated, or Ip4Address is NULL.\r | |
1348 | \r | |
1349 | **/\r | |
1350 | EFI_STATUS\r | |
1351 | EFIAPI\r | |
1352 | NetLibAsciiStrToIp4 (\r | |
1353 | IN CONST CHAR8 *String,\r | |
1354 | OUT EFI_IPv4_ADDRESS *Ip4Address\r | |
1355 | );\r | |
1356 | \r | |
1357 | /**\r | |
1358 | Convert one Null-terminated ASCII string to EFI_IPv6_ADDRESS. The format of the\r | |
1359 | string is defined in RFC 4291 - Text Pepresentation of Addresses.\r | |
1360 | \r | |
1361 | @param[in] String The pointer to the Ascii string.\r | |
1362 | @param[out] Ip6Address The pointer to the converted IPv6 address.\r | |
1363 | \r | |
1364 | @retval EFI_SUCCESS Converted to an IPv6 address successfully.\r | |
1365 | @retval EFI_INVALID_PARAMETER The string is malformated, or Ip6Address is NULL.\r | |
1366 | \r | |
1367 | **/\r | |
1368 | EFI_STATUS\r | |
1369 | EFIAPI\r | |
1370 | NetLibAsciiStrToIp6 (\r | |
1371 | IN CONST CHAR8 *String,\r | |
1372 | OUT EFI_IPv6_ADDRESS *Ip6Address\r | |
1373 | );\r | |
1374 | \r | |
1375 | /**\r | |
1376 | Convert one Null-terminated Unicode string (decimal dotted) to EFI_IPv4_ADDRESS.\r | |
1377 | \r | |
1378 | @param[in] String The pointer to the Ascii string.\r | |
1379 | @param[out] Ip4Address The pointer to the converted IPv4 address.\r | |
1380 | \r | |
1381 | @retval EFI_SUCCESS Converted to an IPv4 address successfully.\r | |
1382 | @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip4Address is NULL.\r | |
1383 | @retval EFI_OUT_OF_RESOURCES Failed to perform the operation due to lack of resources.\r | |
1384 | \r | |
1385 | **/\r | |
1386 | EFI_STATUS\r | |
1387 | EFIAPI\r | |
1388 | NetLibStrToIp4 (\r | |
1389 | IN CONST CHAR16 *String,\r | |
1390 | OUT EFI_IPv4_ADDRESS *Ip4Address\r | |
1391 | );\r | |
1392 | \r | |
1393 | /**\r | |
1394 | Convert one Null-terminated Unicode string to EFI_IPv6_ADDRESS. The format of\r | |
1395 | the string is defined in RFC 4291 - Text Pepresentation of Addresses.\r | |
1396 | \r | |
1397 | @param[in] String The pointer to the Ascii string.\r | |
1398 | @param[out] Ip6Address The pointer to the converted IPv6 address.\r | |
1399 | \r | |
1400 | @retval EFI_SUCCESS Converted to an IPv6 address successfully.\r | |
1401 | @retval EFI_INVALID_PARAMETER The string is malformated or Ip6Address is NULL.\r | |
1402 | @retval EFI_OUT_OF_RESOURCES Failed to perform the operation due to a lack of resources.\r | |
1403 | \r | |
1404 | **/\r | |
1405 | EFI_STATUS\r | |
1406 | EFIAPI\r | |
1407 | NetLibStrToIp6 (\r | |
1408 | IN CONST CHAR16 *String,\r | |
1409 | OUT EFI_IPv6_ADDRESS *Ip6Address\r | |
1410 | );\r | |
1411 | \r | |
1412 | /**\r | |
1413 | Convert one Null-terminated Unicode string to EFI_IPv6_ADDRESS and prefix length.\r | |
1414 | The format of the string is defined in RFC 4291 - Text Pepresentation of Addresses\r | |
1415 | Prefixes: ipv6-address/prefix-length.\r | |
1416 | \r | |
1417 | @param[in] String The pointer to the Ascii string.\r | |
1418 | @param[out] Ip6Address The pointer to the converted IPv6 address.\r | |
1419 | @param[out] PrefixLength The pointer to the converted prefix length.\r | |
1420 | \r | |
1421 | @retval EFI_SUCCESS Converted to an IPv6 address successfully.\r | |
1422 | @retval EFI_INVALID_PARAMETER The string is malformated, or Ip6Address is NULL.\r | |
1423 | @retval EFI_OUT_OF_RESOURCES Failed to perform the operation due to a lack of resources.\r | |
1424 | \r | |
1425 | **/\r | |
1426 | EFI_STATUS\r | |
1427 | EFIAPI\r | |
1428 | NetLibStrToIp6andPrefix (\r | |
1429 | IN CONST CHAR16 *String,\r | |
1430 | OUT EFI_IPv6_ADDRESS *Ip6Address,\r | |
1431 | OUT UINT8 *PrefixLength\r | |
1432 | );\r | |
1433 | \r | |
1434 | /**\r | |
1435 | \r | |
1436 | Convert one EFI_IPv6_ADDRESS to Null-terminated Unicode string.\r | |
1437 | The text representation of address is defined in RFC 4291.\r | |
1438 | \r | |
1439 | @param[in] Ip6Address The pointer to the IPv6 address.\r | |
1440 | @param[out] String The buffer to return the converted string.\r | |
1441 | @param[in] StringSize The length in bytes of the input String.\r | |
1442 | \r | |
1443 | @retval EFI_SUCCESS Convert to string successfully.\r | |
1444 | @retval EFI_INVALID_PARAMETER The input parameter is invalid.\r | |
1445 | @retval EFI_BUFFER_TOO_SMALL The BufferSize is too small for the result. BufferSize has been \r | |
1446 | updated with the size needed to complete the request.\r | |
1447 | **/\r | |
1448 | EFI_STATUS\r | |
1449 | EFIAPI\r | |
1450 | NetLibIp6ToStr (\r | |
1451 | IN EFI_IPv6_ADDRESS *Ip6Address,\r | |
1452 | OUT CHAR16 *String,\r | |
1453 | IN UINTN StringSize\r | |
1454 | );\r | |
1455 | \r | |
1456 | //\r | |
1457 | // Various signatures\r | |
1458 | //\r | |
1459 | #define NET_BUF_SIGNATURE SIGNATURE_32 ('n', 'b', 'u', 'f')\r | |
1460 | #define NET_VECTOR_SIGNATURE SIGNATURE_32 ('n', 'v', 'e', 'c')\r | |
1461 | #define NET_QUE_SIGNATURE SIGNATURE_32 ('n', 'b', 'q', 'u')\r | |
1462 | \r | |
1463 | \r | |
1464 | #define NET_PROTO_DATA 64 // Opaque buffer for protocols\r | |
1465 | #define NET_BUF_HEAD 1 // Trim or allocate space from head\r | |
1466 | #define NET_BUF_TAIL 0 // Trim or allocate space from tail\r | |
1467 | #define NET_VECTOR_OWN_FIRST 0x01 // We allocated the 1st block in the vector\r | |
1468 | \r | |
1469 | #define NET_CHECK_SIGNATURE(PData, SIGNATURE) \\r | |
1470 | ASSERT (((PData) != NULL) && ((PData)->Signature == (SIGNATURE)))\r | |
1471 | \r | |
1472 | //\r | |
1473 | // Single memory block in the vector.\r | |
1474 | //\r | |
1475 | typedef struct {\r | |
1476 | UINT32 Len; // The block's length\r | |
1477 | UINT8 *Bulk; // The block's Data\r | |
1478 | } NET_BLOCK;\r | |
1479 | \r | |
1480 | typedef VOID (EFIAPI *NET_VECTOR_EXT_FREE) (VOID *Arg);\r | |
1481 | \r | |
1482 | //\r | |
1483 | //NET_VECTOR contains several blocks to hold all packet's\r | |
1484 | //fragments and other house-keeping stuff for sharing. It\r | |
1485 | //doesn't specify the where actual packet fragment begins.\r | |
1486 | //\r | |
1487 | typedef struct {\r | |
1488 | UINT32 Signature;\r | |
1489 | INTN RefCnt; // Reference count to share NET_VECTOR.\r | |
1490 | NET_VECTOR_EXT_FREE Free; // external function to free NET_VECTOR\r | |
1491 | VOID *Arg; // opeque argument to Free\r | |
1492 | UINT32 Flag; // Flags, NET_VECTOR_OWN_FIRST\r | |
1493 | UINT32 Len; // Total length of the assocated BLOCKs\r | |
1494 | \r | |
1495 | UINT32 BlockNum;\r | |
1496 | NET_BLOCK Block[1];\r | |
1497 | } NET_VECTOR;\r | |
1498 | \r | |
1499 | //\r | |
1500 | //NET_BLOCK_OP operates on the NET_BLOCK. It specifies\r | |
1501 | //where the actual fragment begins and ends\r | |
1502 | //\r | |
1503 | typedef struct {\r | |
1504 | UINT8 *BlockHead; // Block's head, or the smallest valid Head\r | |
1505 | UINT8 *BlockTail; // Block's tail. BlockTail-BlockHead=block length\r | |
1506 | UINT8 *Head; // 1st byte of the data in the block\r | |
1507 | UINT8 *Tail; // Tail of the data in the block, Tail-Head=Size\r | |
1508 | UINT32 Size; // The size of the data\r | |
1509 | } NET_BLOCK_OP;\r | |
1510 | \r | |
1511 | typedef union {\r | |
1512 | IP4_HEAD *Ip4;\r | |
1513 | EFI_IP6_HEADER *Ip6;\r | |
1514 | } NET_IP_HEAD;\r | |
1515 | \r | |
1516 | //\r | |
1517 | //NET_BUF is the buffer manage structure used by the\r | |
1518 | //network stack. Every network packet may be fragmented. The Vector points to\r | |
1519 | //memory blocks used by each fragment, and BlockOp\r | |
1520 | //specifies where each fragment begins and ends.\r | |
1521 | //\r | |
1522 | //It also contains an opaque area for the protocol to store\r | |
1523 | //per-packet information. Protocol must be careful not\r | |
1524 | //to overwrite the members after that.\r | |
1525 | //\r | |
1526 | typedef struct {\r | |
1527 | UINT32 Signature;\r | |
1528 | INTN RefCnt;\r | |
1529 | LIST_ENTRY List; // The List this NET_BUF is on\r | |
1530 | \r | |
1531 | NET_IP_HEAD Ip; // Network layer header, for fast access\r | |
1532 | TCP_HEAD *Tcp; // Transport layer header, for fast access\r | |
1533 | EFI_UDP_HEADER *Udp; // User Datagram Protocol header\r | |
1534 | UINT8 ProtoData [NET_PROTO_DATA]; //Protocol specific data\r | |
1535 | \r | |
1536 | NET_VECTOR *Vector; // The vector containing the packet\r | |
1537 | \r | |
1538 | UINT32 BlockOpNum; // Total number of BlockOp in the buffer\r | |
1539 | UINT32 TotalSize; // Total size of the actual packet\r | |
1540 | NET_BLOCK_OP BlockOp[1]; // Specify the position of actual packet\r | |
1541 | } NET_BUF;\r | |
1542 | \r | |
1543 | //\r | |
1544 | //A queue of NET_BUFs. It is a thin extension of\r | |
1545 | //NET_BUF functions.\r | |
1546 | //\r | |
1547 | typedef struct {\r | |
1548 | UINT32 Signature;\r | |
1549 | INTN RefCnt;\r | |
1550 | LIST_ENTRY List; // The List this buffer queue is on\r | |
1551 | \r | |
1552 | LIST_ENTRY BufList; // list of queued buffers\r | |
1553 | UINT32 BufSize; // total length of DATA in the buffers\r | |
1554 | UINT32 BufNum; // total number of buffers on the chain\r | |
1555 | } NET_BUF_QUEUE;\r | |
1556 | \r | |
1557 | //\r | |
1558 | // Pseudo header for TCP and UDP checksum\r | |
1559 | //\r | |
1560 | #pragma pack(1)\r | |
1561 | typedef struct {\r | |
1562 | IP4_ADDR SrcIp;\r | |
1563 | IP4_ADDR DstIp;\r | |
1564 | UINT8 Reserved;\r | |
1565 | UINT8 Protocol;\r | |
1566 | UINT16 Len;\r | |
1567 | } NET_PSEUDO_HDR;\r | |
1568 | \r | |
1569 | typedef struct {\r | |
1570 | EFI_IPv6_ADDRESS SrcIp;\r | |
1571 | EFI_IPv6_ADDRESS DstIp;\r | |
1572 | UINT32 Len;\r | |
1573 | UINT32 Reserved:24;\r | |
1574 | UINT32 NextHeader:8;\r | |
1575 | } NET_IP6_PSEUDO_HDR;\r | |
1576 | #pragma pack()\r | |
1577 | \r | |
1578 | //\r | |
1579 | // The fragment entry table used in network interfaces. This is\r | |
1580 | // the same as NET_BLOCK now. Use two different to distinguish\r | |
1581 | // the two in case that NET_BLOCK be enhanced later.\r | |
1582 | //\r | |
1583 | typedef struct {\r | |
1584 | UINT32 Len;\r | |
1585 | UINT8 *Bulk;\r | |
1586 | } NET_FRAGMENT;\r | |
1587 | \r | |
1588 | #define NET_GET_REF(PData) ((PData)->RefCnt++)\r | |
1589 | #define NET_PUT_REF(PData) ((PData)->RefCnt--)\r | |
1590 | #define NETBUF_FROM_PROTODATA(Info) BASE_CR((Info), NET_BUF, ProtoData)\r | |
1591 | \r | |
1592 | #define NET_BUF_SHARED(Buf) \\r | |
1593 | (((Buf)->RefCnt > 1) || ((Buf)->Vector->RefCnt > 1))\r | |
1594 | \r | |
1595 | #define NET_VECTOR_SIZE(BlockNum) \\r | |
1596 | (sizeof (NET_VECTOR) + ((BlockNum) - 1) * sizeof (NET_BLOCK))\r | |
1597 | \r | |
1598 | #define NET_BUF_SIZE(BlockOpNum) \\r | |
1599 | (sizeof (NET_BUF) + ((BlockOpNum) - 1) * sizeof (NET_BLOCK_OP))\r | |
1600 | \r | |
1601 | #define NET_HEADSPACE(BlockOp) \\r | |
1602 | (UINTN)((BlockOp)->Head - (BlockOp)->BlockHead)\r | |
1603 | \r | |
1604 | #define NET_TAILSPACE(BlockOp) \\r | |
1605 | (UINTN)((BlockOp)->BlockTail - (BlockOp)->Tail)\r | |
1606 | \r | |
1607 | /**\r | |
1608 | Allocate a single block NET_BUF. Upon allocation, all the\r | |
1609 | free space is in the tail room.\r | |
1610 | \r | |
1611 | @param[in] Len The length of the block.\r | |
1612 | \r | |
1613 | @return The pointer to the allocated NET_BUF, or NULL if the\r | |
1614 | allocation failed due to resource limitations.\r | |
1615 | \r | |
1616 | **/\r | |
1617 | NET_BUF *\r | |
1618 | EFIAPI\r | |
1619 | NetbufAlloc (\r | |
1620 | IN UINT32 Len\r | |
1621 | );\r | |
1622 | \r | |
1623 | /**\r | |
1624 | Free the net buffer and its associated NET_VECTOR.\r | |
1625 | \r | |
1626 | Decrease the reference count of the net buffer by one. Free the associated net\r | |
1627 | vector and itself if the reference count of the net buffer is decreased to 0.\r | |
1628 | The net vector free operation decreases the reference count of the net\r | |
1629 | vector by one, and performs the resource free operation when the reference count\r | |
1630 | of the net vector is 0.\r | |
1631 | \r | |
1632 | @param[in] Nbuf The pointer to the NET_BUF to be freed.\r | |
1633 | \r | |
1634 | **/\r | |
1635 | VOID\r | |
1636 | EFIAPI\r | |
1637 | NetbufFree (\r | |
1638 | IN NET_BUF *Nbuf\r | |
1639 | );\r | |
1640 | \r | |
1641 | /**\r | |
1642 | Get the index of NET_BLOCK_OP that contains the byte at Offset in the net\r | |
1643 | buffer.\r | |
1644 | \r | |
1645 | For example, this function can be used to retrieve the IP header in the packet. It\r | |
1646 | also can be used to get the fragment that contains the byte used\r | |
1647 | mainly by the library implementation itself.\r | |
1648 | \r | |
1649 | @param[in] Nbuf The pointer to the net buffer.\r | |
1650 | @param[in] Offset The offset of the byte.\r | |
1651 | @param[out] Index Index of the NET_BLOCK_OP that contains the byte at\r | |
1652 | Offset.\r | |
1653 | \r | |
1654 | @return The pointer to the Offset'th byte of data in the net buffer, or NULL\r | |
1655 | if there is no such data in the net buffer.\r | |
1656 | \r | |
1657 | **/\r | |
1658 | UINT8 *\r | |
1659 | EFIAPI\r | |
1660 | NetbufGetByte (\r | |
1661 | IN NET_BUF *Nbuf,\r | |
1662 | IN UINT32 Offset,\r | |
1663 | OUT UINT32 *Index OPTIONAL\r | |
1664 | );\r | |
1665 | \r | |
1666 | /**\r | |
1667 | Create a copy of the net buffer that shares the associated net vector.\r | |
1668 | \r | |
1669 | The reference count of the newly created net buffer is set to 1. The reference\r | |
1670 | count of the associated net vector is increased by one.\r | |
1671 | \r | |
1672 | @param[in] Nbuf The pointer to the net buffer to be cloned.\r | |
1673 | \r | |
1674 | @return The pointer to the cloned net buffer, or NULL if the\r | |
1675 | allocation failed due to resource limitations.\r | |
1676 | \r | |
1677 | **/\r | |
1678 | NET_BUF *\r | |
1679 | EFIAPI\r | |
1680 | NetbufClone (\r | |
1681 | IN NET_BUF *Nbuf\r | |
1682 | );\r | |
1683 | \r | |
1684 | /**\r | |
1685 | Create a duplicated copy of the net buffer with data copied and HeadSpace\r | |
1686 | bytes of head space reserved.\r | |
1687 | \r | |
1688 | The duplicated net buffer will allocate its own memory to hold the data of the\r | |
1689 | source net buffer.\r | |
1690 | \r | |
1691 | @param[in] Nbuf The pointer to the net buffer to be duplicated from.\r | |
1692 | @param[in, out] Duplicate The pointer to the net buffer to duplicate to. If\r | |
1693 | NULL, a new net buffer is allocated.\r | |
1694 | @param[in] HeadSpace The length of the head space to reserve.\r | |
1695 | \r | |
1696 | @return The pointer to the duplicated net buffer, or NULL if\r | |
1697 | the allocation failed due to resource limitations.\r | |
1698 | \r | |
1699 | **/\r | |
1700 | NET_BUF *\r | |
1701 | EFIAPI\r | |
1702 | NetbufDuplicate (\r | |
1703 | IN NET_BUF *Nbuf,\r | |
1704 | IN OUT NET_BUF *Duplicate OPTIONAL,\r | |
1705 | IN UINT32 HeadSpace\r | |
1706 | );\r | |
1707 | \r | |
1708 | /**\r | |
1709 | Create a NET_BUF structure which contains Len byte data of Nbuf starting from\r | |
1710 | Offset.\r | |
1711 | \r | |
1712 | A new NET_BUF structure will be created but the associated data in NET_VECTOR\r | |
1713 | is shared. This function exists to perform IP packet fragmentation.\r | |
1714 | \r | |
1715 | @param[in] Nbuf The pointer to the net buffer to be extracted.\r | |
1716 | @param[in] Offset Starting point of the data to be included in the new\r | |
1717 | net buffer.\r | |
1718 | @param[in] Len The bytes of data to be included in the new net buffer.\r | |
1719 | @param[in] HeadSpace The bytes of the head space to reserve for the protocol header.\r | |
1720 | \r | |
1721 | @return The pointer to the cloned net buffer, or NULL if the\r | |
1722 | allocation failed due to resource limitations.\r | |
1723 | \r | |
1724 | **/\r | |
1725 | NET_BUF *\r | |
1726 | EFIAPI\r | |
1727 | NetbufGetFragment (\r | |
1728 | IN NET_BUF *Nbuf,\r | |
1729 | IN UINT32 Offset,\r | |
1730 | IN UINT32 Len,\r | |
1731 | IN UINT32 HeadSpace\r | |
1732 | );\r | |
1733 | \r | |
1734 | /**\r | |
1735 | Reserve some space in the header room of the net buffer.\r | |
1736 | \r | |
1737 | Upon allocation, all the space is in the tail room of the buffer. Call this\r | |
1738 | function to move space to the header room. This function is quite limited\r | |
1739 | in that it can only reserve space from the first block of an empty NET_BUF not\r | |
1740 | built from the external. However, it should be enough for the network stack.\r | |
1741 | \r | |
1742 | @param[in, out] Nbuf The pointer to the net buffer.\r | |
1743 | @param[in] Len The length of buffer to be reserved from the header.\r | |
1744 | \r | |
1745 | **/\r | |
1746 | VOID\r | |
1747 | EFIAPI\r | |
1748 | NetbufReserve (\r | |
1749 | IN OUT NET_BUF *Nbuf,\r | |
1750 | IN UINT32 Len\r | |
1751 | );\r | |
1752 | \r | |
1753 | /**\r | |
1754 | Allocate Len bytes of space from the header or tail of the buffer.\r | |
1755 | \r | |
1756 | @param[in, out] Nbuf The pointer to the net buffer.\r | |
1757 | @param[in] Len The length of the buffer to be allocated.\r | |
1758 | @param[in] FromHead The flag to indicate whether to reserve the data\r | |
1759 | from head (TRUE) or tail (FALSE).\r | |
1760 | \r | |
1761 | @return The pointer to the first byte of the allocated buffer,\r | |
1762 | or NULL, if there is no sufficient space.\r | |
1763 | \r | |
1764 | **/\r | |
1765 | UINT8*\r | |
1766 | EFIAPI\r | |
1767 | NetbufAllocSpace (\r | |
1768 | IN OUT NET_BUF *Nbuf,\r | |
1769 | IN UINT32 Len,\r | |
1770 | IN BOOLEAN FromHead\r | |
1771 | );\r | |
1772 | \r | |
1773 | /**\r | |
1774 | Trim Len bytes from the header or the tail of the net buffer.\r | |
1775 | \r | |
1776 | @param[in, out] Nbuf The pointer to the net buffer.\r | |
1777 | @param[in] Len The length of the data to be trimmed.\r | |
1778 | @param[in] FromHead The flag to indicate whether trim data is from the \r | |
1779 | head (TRUE) or the tail (FALSE).\r | |
1780 | \r | |
1781 | @return The length of the actual trimmed data, which may be less\r | |
1782 | than Len if the TotalSize of Nbuf is less than Len.\r | |
1783 | \r | |
1784 | **/\r | |
1785 | UINT32\r | |
1786 | EFIAPI\r | |
1787 | NetbufTrim (\r | |
1788 | IN OUT NET_BUF *Nbuf,\r | |
1789 | IN UINT32 Len,\r | |
1790 | IN BOOLEAN FromHead\r | |
1791 | );\r | |
1792 | \r | |
1793 | /**\r | |
1794 | Copy Len bytes of data from the specific offset of the net buffer to the\r | |
1795 | destination memory.\r | |
1796 | \r | |
1797 | The Len bytes of data may cross several fragments of the net buffer.\r | |
1798 | \r | |
1799 | @param[in] Nbuf The pointer to the net buffer.\r | |
1800 | @param[in] Offset The sequence number of the first byte to copy.\r | |
1801 | @param[in] Len The length of the data to copy.\r | |
1802 | @param[in] Dest The destination of the data to copy to.\r | |
1803 | \r | |
1804 | @return The length of the actual copied data, or 0 if the offset\r | |
1805 | specified exceeds the total size of net buffer.\r | |
1806 | \r | |
1807 | **/\r | |
1808 | UINT32\r | |
1809 | EFIAPI\r | |
1810 | NetbufCopy (\r | |
1811 | IN NET_BUF *Nbuf,\r | |
1812 | IN UINT32 Offset,\r | |
1813 | IN UINT32 Len,\r | |
1814 | IN UINT8 *Dest\r | |
1815 | );\r | |
1816 | \r | |
1817 | /**\r | |
1818 | Build a NET_BUF from external blocks.\r | |
1819 | \r | |
1820 | A new NET_BUF structure will be created from external blocks. An additional block\r | |
1821 | of memory will be allocated to hold reserved HeadSpace bytes of header room\r | |
1822 | and existing HeadLen bytes of header, but the external blocks are shared by the\r | |
1823 | net buffer to avoid data copying.\r | |
1824 | \r | |
1825 | @param[in] ExtFragment The pointer to the data block.\r | |
1826 | @param[in] ExtNum The number of the data blocks.\r | |
1827 | @param[in] HeadSpace The head space to be reserved.\r | |
1828 | @param[in] HeadLen The length of the protocol header. The function\r | |
1829 | pulls this amount of data into a linear block.\r | |
1830 | @param[in] ExtFree The pointer to the caller-provided free function.\r | |
1831 | @param[in] Arg The argument passed to ExtFree when ExtFree is\r | |
1832 | called.\r | |
1833 | \r | |
1834 | @return The pointer to the net buffer built from the data blocks,\r | |
1835 | or NULL if the allocation failed due to resource\r | |
1836 | limit.\r | |
1837 | \r | |
1838 | **/\r | |
1839 | NET_BUF *\r | |
1840 | EFIAPI\r | |
1841 | NetbufFromExt (\r | |
1842 | IN NET_FRAGMENT *ExtFragment,\r | |
1843 | IN UINT32 ExtNum,\r | |
1844 | IN UINT32 HeadSpace,\r | |
1845 | IN UINT32 HeadLen,\r | |
1846 | IN NET_VECTOR_EXT_FREE ExtFree,\r | |
1847 | IN VOID *Arg OPTIONAL\r | |
1848 | );\r | |
1849 | \r | |
1850 | /**\r | |
1851 | Build a fragment table to contain the fragments in the net buffer. This is the\r | |
1852 | opposite operation of the NetbufFromExt.\r | |
1853 | \r | |
1854 | @param[in] Nbuf Points to the net buffer.\r | |
1855 | @param[in, out] ExtFragment The pointer to the data block.\r | |
1856 | @param[in, out] ExtNum The number of the data blocks.\r | |
1857 | \r | |
1858 | @retval EFI_BUFFER_TOO_SMALL The number of non-empty blocks is bigger than\r | |
1859 | ExtNum.\r | |
1860 | @retval EFI_SUCCESS The fragment table was built successfully.\r | |
1861 | \r | |
1862 | **/\r | |
1863 | EFI_STATUS\r | |
1864 | EFIAPI\r | |
1865 | NetbufBuildExt (\r | |
1866 | IN NET_BUF *Nbuf,\r | |
1867 | IN OUT NET_FRAGMENT *ExtFragment,\r | |
1868 | IN OUT UINT32 *ExtNum\r | |
1869 | );\r | |
1870 | \r | |
1871 | /**\r | |
1872 | Build a net buffer from a list of net buffers.\r | |
1873 | \r | |
1874 | All the fragments will be collected from the list of NEW_BUF, and then a new\r | |
1875 | net buffer will be created through NetbufFromExt.\r | |
1876 | \r | |
1877 | @param[in] BufList A List of the net buffer.\r | |
1878 | @param[in] HeadSpace The head space to be reserved.\r | |
1879 | @param[in] HeaderLen The length of the protocol header. The function\r | |
1880 | pulls this amount of data into a linear block.\r | |
1881 | @param[in] ExtFree The pointer to the caller provided free function.\r | |
1882 | @param[in] Arg The argument passed to ExtFree when ExtFree is called.\r | |
1883 | \r | |
1884 | @return The pointer to the net buffer built from the list of net\r | |
1885 | buffers.\r | |
1886 | \r | |
1887 | **/\r | |
1888 | NET_BUF *\r | |
1889 | EFIAPI\r | |
1890 | NetbufFromBufList (\r | |
1891 | IN LIST_ENTRY *BufList,\r | |
1892 | IN UINT32 HeadSpace,\r | |
1893 | IN UINT32 HeaderLen,\r | |
1894 | IN NET_VECTOR_EXT_FREE ExtFree,\r | |
1895 | IN VOID *Arg OPTIONAL\r | |
1896 | );\r | |
1897 | \r | |
1898 | /**\r | |
1899 | Free a list of net buffers.\r | |
1900 | \r | |
1901 | @param[in, out] Head The pointer to the head of linked net buffers.\r | |
1902 | \r | |
1903 | **/\r | |
1904 | VOID\r | |
1905 | EFIAPI\r | |
1906 | NetbufFreeList (\r | |
1907 | IN OUT LIST_ENTRY *Head\r | |
1908 | );\r | |
1909 | \r | |
1910 | /**\r | |
1911 | Initiate the net buffer queue.\r | |
1912 | \r | |
1913 | @param[in, out] NbufQue The pointer to the net buffer queue to be initialized.\r | |
1914 | \r | |
1915 | **/\r | |
1916 | VOID\r | |
1917 | EFIAPI\r | |
1918 | NetbufQueInit (\r | |
1919 | IN OUT NET_BUF_QUEUE *NbufQue\r | |
1920 | );\r | |
1921 | \r | |
1922 | /**\r | |
1923 | Allocate and initialize a net buffer queue.\r | |
1924 | \r | |
1925 | @return The pointer to the allocated net buffer queue, or NULL if the\r | |
1926 | allocation failed due to resource limit.\r | |
1927 | \r | |
1928 | **/\r | |
1929 | NET_BUF_QUEUE *\r | |
1930 | EFIAPI\r | |
1931 | NetbufQueAlloc (\r | |
1932 | VOID\r | |
1933 | );\r | |
1934 | \r | |
1935 | /**\r | |
1936 | Free a net buffer queue.\r | |
1937 | \r | |
1938 | Decrease the reference count of the net buffer queue by one. The real resource\r | |
1939 | free operation isn't performed until the reference count of the net buffer\r | |
1940 | queue is decreased to 0.\r | |
1941 | \r | |
1942 | @param[in] NbufQue The pointer to the net buffer queue to be freed.\r | |
1943 | \r | |
1944 | **/\r | |
1945 | VOID\r | |
1946 | EFIAPI\r | |
1947 | NetbufQueFree (\r | |
1948 | IN NET_BUF_QUEUE *NbufQue\r | |
1949 | );\r | |
1950 | \r | |
1951 | /**\r | |
1952 | Remove a net buffer from the head in the specific queue and return it.\r | |
1953 | \r | |
1954 | @param[in, out] NbufQue The pointer to the net buffer queue.\r | |
1955 | \r | |
1956 | @return The pointer to the net buffer removed from the specific queue,\r | |
1957 | or NULL if there is no net buffer in the specific queue.\r | |
1958 | \r | |
1959 | **/\r | |
1960 | NET_BUF *\r | |
1961 | EFIAPI\r | |
1962 | NetbufQueRemove (\r | |
1963 | IN OUT NET_BUF_QUEUE *NbufQue\r | |
1964 | );\r | |
1965 | \r | |
1966 | /**\r | |
1967 | Append a net buffer to the net buffer queue.\r | |
1968 | \r | |
1969 | @param[in, out] NbufQue The pointer to the net buffer queue.\r | |
1970 | @param[in, out] Nbuf The pointer to the net buffer to be appended.\r | |
1971 | \r | |
1972 | **/\r | |
1973 | VOID\r | |
1974 | EFIAPI\r | |
1975 | NetbufQueAppend (\r | |
1976 | IN OUT NET_BUF_QUEUE *NbufQue,\r | |
1977 | IN OUT NET_BUF *Nbuf\r | |
1978 | );\r | |
1979 | \r | |
1980 | /**\r | |
1981 | Copy Len bytes of data from the net buffer queue at the specific offset to the\r | |
1982 | destination memory.\r | |
1983 | \r | |
1984 | The copying operation is the same as NetbufCopy, but applies to the net buffer\r | |
1985 | queue instead of the net buffer.\r | |
1986 | \r | |
1987 | @param[in] NbufQue The pointer to the net buffer queue.\r | |
1988 | @param[in] Offset The sequence number of the first byte to copy.\r | |
1989 | @param[in] Len The length of the data to copy.\r | |
1990 | @param[out] Dest The destination of the data to copy to.\r | |
1991 | \r | |
1992 | @return The length of the actual copied data, or 0 if the offset\r | |
1993 | specified exceeds the total size of net buffer queue.\r | |
1994 | \r | |
1995 | **/\r | |
1996 | UINT32\r | |
1997 | EFIAPI\r | |
1998 | NetbufQueCopy (\r | |
1999 | IN NET_BUF_QUEUE *NbufQue,\r | |
2000 | IN UINT32 Offset,\r | |
2001 | IN UINT32 Len,\r | |
2002 | OUT UINT8 *Dest\r | |
2003 | );\r | |
2004 | \r | |
2005 | /**\r | |
2006 | Trim Len bytes of data from the buffer queue and free any net buffer\r | |
2007 | that is completely trimmed.\r | |
2008 | \r | |
2009 | The trimming operation is the same as NetbufTrim but applies to the net buffer\r | |
2010 | queue instead of the net buffer.\r | |
2011 | \r | |
2012 | @param[in, out] NbufQue The pointer to the net buffer queue.\r | |
2013 | @param[in] Len The length of the data to trim.\r | |
2014 | \r | |
2015 | @return The actual length of the data trimmed.\r | |
2016 | \r | |
2017 | **/\r | |
2018 | UINT32\r | |
2019 | EFIAPI\r | |
2020 | NetbufQueTrim (\r | |
2021 | IN OUT NET_BUF_QUEUE *NbufQue,\r | |
2022 | IN UINT32 Len\r | |
2023 | );\r | |
2024 | \r | |
2025 | \r | |
2026 | /**\r | |
2027 | Flush the net buffer queue.\r | |
2028 | \r | |
2029 | @param[in, out] NbufQue The pointer to the queue to be flushed.\r | |
2030 | \r | |
2031 | **/\r | |
2032 | VOID\r | |
2033 | EFIAPI\r | |
2034 | NetbufQueFlush (\r | |
2035 | IN OUT NET_BUF_QUEUE *NbufQue\r | |
2036 | );\r | |
2037 | \r | |
2038 | /**\r | |
2039 | Compute the checksum for a bulk of data.\r | |
2040 | \r | |
2041 | @param[in] Bulk The pointer to the data.\r | |
2042 | @param[in] Len The length of the data, in bytes.\r | |
2043 | \r | |
2044 | @return The computed checksum.\r | |
2045 | \r | |
2046 | **/\r | |
2047 | UINT16\r | |
2048 | EFIAPI\r | |
2049 | NetblockChecksum (\r | |
2050 | IN UINT8 *Bulk,\r | |
2051 | IN UINT32 Len\r | |
2052 | );\r | |
2053 | \r | |
2054 | /**\r | |
2055 | Add two checksums.\r | |
2056 | \r | |
2057 | @param[in] Checksum1 The first checksum to be added.\r | |
2058 | @param[in] Checksum2 The second checksum to be added.\r | |
2059 | \r | |
2060 | @return The new checksum.\r | |
2061 | \r | |
2062 | **/\r | |
2063 | UINT16\r | |
2064 | EFIAPI\r | |
2065 | NetAddChecksum (\r | |
2066 | IN UINT16 Checksum1,\r | |
2067 | IN UINT16 Checksum2\r | |
2068 | );\r | |
2069 | \r | |
2070 | /**\r | |
2071 | Compute the checksum for a NET_BUF.\r | |
2072 | \r | |
2073 | @param[in] Nbuf The pointer to the net buffer.\r | |
2074 | \r | |
2075 | @return The computed checksum.\r | |
2076 | \r | |
2077 | **/\r | |
2078 | UINT16\r | |
2079 | EFIAPI\r | |
2080 | NetbufChecksum (\r | |
2081 | IN NET_BUF *Nbuf\r | |
2082 | );\r | |
2083 | \r | |
2084 | /**\r | |
2085 | Compute the checksum for TCP/UDP pseudo header.\r | |
2086 | \r | |
2087 | Src and Dst are in network byte order, and Len is in host byte order.\r | |
2088 | \r | |
2089 | @param[in] Src The source address of the packet.\r | |
2090 | @param[in] Dst The destination address of the packet.\r | |
2091 | @param[in] Proto The protocol type of the packet.\r | |
2092 | @param[in] Len The length of the packet.\r | |
2093 | \r | |
2094 | @return The computed checksum.\r | |
2095 | \r | |
2096 | **/\r | |
2097 | UINT16\r | |
2098 | EFIAPI\r | |
2099 | NetPseudoHeadChecksum (\r | |
2100 | IN IP4_ADDR Src,\r | |
2101 | IN IP4_ADDR Dst,\r | |
2102 | IN UINT8 Proto,\r | |
2103 | IN UINT16 Len\r | |
2104 | );\r | |
2105 | \r | |
2106 | /**\r | |
2107 | Compute the checksum for the TCP6/UDP6 pseudo header.\r | |
2108 | \r | |
2109 | Src and Dst are in network byte order, and Len is in host byte order.\r | |
2110 | \r | |
2111 | @param[in] Src The source address of the packet.\r | |
2112 | @param[in] Dst The destination address of the packet.\r | |
2113 | @param[in] NextHeader The protocol type of the packet.\r | |
2114 | @param[in] Len The length of the packet.\r | |
2115 | \r | |
2116 | @return The computed checksum.\r | |
2117 | \r | |
2118 | **/\r | |
2119 | UINT16\r | |
2120 | EFIAPI\r | |
2121 | NetIp6PseudoHeadChecksum (\r | |
2122 | IN EFI_IPv6_ADDRESS *Src,\r | |
2123 | IN EFI_IPv6_ADDRESS *Dst,\r | |
2124 | IN UINT8 NextHeader,\r | |
2125 | IN UINT32 Len\r | |
2126 | );\r | |
2127 | \r | |
2128 | /**\r | |
2129 | The function frees the net buffer which allocated by the IP protocol. It releases \r | |
2130 | only the net buffer and doesn't call the external free function. \r | |
2131 | \r | |
2132 | This function should be called after finishing the process of mIpSec->ProcessExt() \r | |
2133 | for outbound traffic. The (EFI_IPSEC2_PROTOCOL)->ProcessExt() allocates a new \r | |
2134 | buffer for the ESP, so there needs a function to free the old net buffer.\r | |
2135 | \r | |
2136 | @param[in] Nbuf The network buffer to be freed.\r | |
2137 | \r | |
2138 | **/\r | |
2139 | VOID\r | |
2140 | NetIpSecNetbufFree (\r | |
2141 | NET_BUF *Nbuf\r | |
2142 | );\r | |
2143 | \r | |
2144 | /**\r | |
2145 | This function obtains the system guid from the smbios table.\r | |
2146 | \r | |
2147 | @param[out] SystemGuid The pointer of the returned system guid.\r | |
2148 | \r | |
2149 | @retval EFI_SUCCESS Successfully obtained the system guid.\r | |
2150 | @retval EFI_NOT_FOUND Did not find the SMBIOS table.\r | |
2151 | \r | |
2152 | **/\r | |
2153 | EFI_STATUS\r | |
2154 | EFIAPI\r | |
2155 | NetLibGetSystemGuid (\r | |
2156 | OUT EFI_GUID *SystemGuid\r | |
2157 | );\r | |
2158 | \r | |
2159 | #endif\r |