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1 | /** @file\r |
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2 | This library is only intended to be used by UEFI network stack modules.\r |
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3 | It provides basic functions for the UEFI network stack.\r |
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4 | \r |
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5 | Copyright (c) 2005 - 2009, Intel Corporation\r |
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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 |
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19 | #include <Protocol/Ip6.h>\r |
| 20 | \r |
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21 | #include <Library/BaseLib.h>\r |
| 22 | \r |
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23 | typedef UINT32 IP4_ADDR;\r |
| 24 | typedef UINT32 TCP_SEQNO;\r |
| 25 | typedef UINT16 TCP_PORTNO;\r |
| 26 | \r |
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27 | \r |
| 28 | #define NET_ETHER_ADDR_LEN 6\r |
| 29 | #define NET_IFTYPE_ETHERNET 0x01\r |
| 30 | \r |
| 31 | #define EFI_IP_PROTO_UDP 0x11\r |
| 32 | #define EFI_IP_PROTO_TCP 0x06\r |
| 33 | #define EFI_IP_PROTO_ICMP 0x01\r |
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34 | #define IP4_PROTO_IGMP 0x02\r |
| 35 | #define IP6_ICMP 58\r |
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36 | \r |
| 37 | //\r |
| 38 | // The address classification\r |
| 39 | //\r |
| 40 | #define IP4_ADDR_CLASSA 1\r |
| 41 | #define IP4_ADDR_CLASSB 2\r |
| 42 | #define IP4_ADDR_CLASSC 3\r |
| 43 | #define IP4_ADDR_CLASSD 4\r |
| 44 | #define IP4_ADDR_CLASSE 5\r |
| 45 | \r |
| 46 | #define IP4_MASK_NUM 33\r |
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47 | #define IP6_PREFIX_NUM 129\r |
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48 | \r |
| 49 | #define IP6_HOP_BY_HOP 0\r |
| 50 | #define IP6_DESTINATION 60\r |
| 51 | #define IP6_FRAGMENT 44\r |
| 52 | #define IP6_AH 51\r |
| 53 | #define IP6_ESP 50\r |
| 54 | #define IP6_NO_NEXT_HEADER 59\r |
| 55 | \r |
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56 | #define IP_VERSION_4 4\r |
| 57 | #define IP_VERSION_6 6\r |
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58 | \r |
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59 | #pragma pack(1)\r |
| 60 | \r |
| 61 | //\r |
| 62 | // Ethernet head definition\r |
| 63 | //\r |
| 64 | typedef struct {\r |
| 65 | UINT8 DstMac [NET_ETHER_ADDR_LEN];\r |
| 66 | UINT8 SrcMac [NET_ETHER_ADDR_LEN];\r |
| 67 | UINT16 EtherType;\r |
| 68 | } ETHER_HEAD;\r |
| 69 | \r |
| 70 | \r |
| 71 | //\r |
| 72 | // The EFI_IP4_HEADER is hard to use because the source and\r |
| 73 | // destination address are defined as EFI_IPv4_ADDRESS, which\r |
| 74 | // is a structure. Two structures can't be compared or masked\r |
| 75 | // directly. This is why there is an internal representation.\r |
| 76 | //\r |
| 77 | typedef struct {\r |
| 78 | UINT8 HeadLen : 4;\r |
| 79 | UINT8 Ver : 4;\r |
| 80 | UINT8 Tos;\r |
| 81 | UINT16 TotalLen;\r |
| 82 | UINT16 Id;\r |
| 83 | UINT16 Fragment;\r |
| 84 | UINT8 Ttl;\r |
| 85 | UINT8 Protocol;\r |
| 86 | UINT16 Checksum;\r |
| 87 | IP4_ADDR Src;\r |
| 88 | IP4_ADDR Dst;\r |
| 89 | } IP4_HEAD;\r |
| 90 | \r |
| 91 | \r |
| 92 | //\r |
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93 | // ICMP head definition. Each ICMP message is categorized as either an error\r |
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94 | // message or query message. Two message types have their own head format.\r |
| 95 | //\r |
| 96 | typedef struct {\r |
| 97 | UINT8 Type;\r |
| 98 | UINT8 Code;\r |
| 99 | UINT16 Checksum;\r |
| 100 | } IP4_ICMP_HEAD;\r |
| 101 | \r |
| 102 | typedef struct {\r |
| 103 | IP4_ICMP_HEAD Head;\r |
| 104 | UINT32 Fourth; // 4th filed of the head, it depends on Type.\r |
| 105 | IP4_HEAD IpHead;\r |
| 106 | } IP4_ICMP_ERROR_HEAD;\r |
| 107 | \r |
| 108 | typedef struct {\r |
| 109 | IP4_ICMP_HEAD Head;\r |
| 110 | UINT16 Id;\r |
| 111 | UINT16 Seq;\r |
| 112 | } IP4_ICMP_QUERY_HEAD;\r |
| 113 | \r |
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114 | typedef struct {\r |
| 115 | UINT8 Type;\r |
| 116 | UINT8 Code;\r |
| 117 | UINT16 Checksum;\r |
| 118 | } IP6_ICMP_HEAD;\r |
| 119 | \r |
| 120 | typedef struct {\r |
| 121 | IP6_ICMP_HEAD Head;\r |
| 122 | UINT32 Fourth;\r |
| 123 | EFI_IP6_HEADER IpHead;\r |
| 124 | } IP6_ICMP_ERROR_HEAD;\r |
| 125 | \r |
| 126 | typedef struct {\r |
| 127 | IP6_ICMP_HEAD Head;\r |
| 128 | UINT32 Fourth;\r |
| 129 | } IP6_ICMP_INFORMATION_HEAD;\r |
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130 | \r |
| 131 | //\r |
| 132 | // UDP header definition\r |
| 133 | //\r |
| 134 | typedef struct {\r |
| 135 | UINT16 SrcPort;\r |
| 136 | UINT16 DstPort;\r |
| 137 | UINT16 Length;\r |
| 138 | UINT16 Checksum;\r |
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139 | } EFI_UDP_HEADER;\r |
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140 | \r |
| 141 | //\r |
| 142 | // TCP header definition\r |
| 143 | //\r |
| 144 | typedef struct {\r |
| 145 | TCP_PORTNO SrcPort;\r |
| 146 | TCP_PORTNO DstPort;\r |
| 147 | TCP_SEQNO Seq;\r |
| 148 | TCP_SEQNO Ack;\r |
| 149 | UINT8 Res : 4;\r |
| 150 | UINT8 HeadLen : 4;\r |
| 151 | UINT8 Flag;\r |
| 152 | UINT16 Wnd;\r |
| 153 | UINT16 Checksum;\r |
| 154 | UINT16 Urg;\r |
| 155 | } TCP_HEAD;\r |
| 156 | \r |
| 157 | #pragma pack()\r |
| 158 | \r |
| 159 | #define NET_MAC_EQUAL(pMac1, pMac2, Len) \\r |
| 160 | (CompareMem ((pMac1), (pMac2), Len) == 0)\r |
| 161 | \r |
| 162 | #define NET_MAC_IS_MULTICAST(Mac, BMac, Len) \\r |
| 163 | (((*((UINT8 *) Mac) & 0x01) == 0x01) && (!NET_MAC_EQUAL (Mac, BMac, Len)))\r |
| 164 | \r |
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165 | #define NTOHL(x) SwapBytes32 (x)\r |
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166 | \r |
| 167 | #define HTONL(x) NTOHL(x)\r |
| 168 | \r |
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169 | #define NTOHS(x) SwapBytes16 (x)\r |
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170 | \r |
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171 | #define HTONS(x) NTOHS(x)\r |
| 172 | #define NTOHLL(x) SwapBytes64 (x)\r |
| 173 | #define HTONLL(x) NTOHLL(x)\r |
| 174 | #define NTOHLLL(x) Ip6Swap128 (x)\r |
| 175 | #define HTONLLL(x) NTOHLLL(x)\r |
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176 | \r |
| 177 | //\r |
| 178 | // Test the IP's attribute, All the IPs are in host byte order.\r |
| 179 | //\r |
| 180 | #define IP4_IS_MULTICAST(Ip) (((Ip) & 0xF0000000) == 0xE0000000)\r |
| 181 | #define IP4_IS_LOCAL_BROADCAST(Ip) ((Ip) == 0xFFFFFFFF)\r |
| 182 | #define IP4_NET_EQUAL(Ip1, Ip2, NetMask) (((Ip1) & (NetMask)) == ((Ip2) & (NetMask)))\r |
| 183 | #define IP4_IS_VALID_NETMASK(Ip) (NetGetMaskLength (Ip) != IP4_MASK_NUM)\r |
| 184 | \r |
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185 | #define IP6_IS_MULTICAST(Ip6) (((Ip6)->Addr[0]) == 0xFF)\r |
| 186 | \r |
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187 | //\r |
| 188 | // Convert the EFI_IP4_ADDRESS to plain UINT32 IP4 address.\r |
| 189 | //\r |
| 190 | #define EFI_IP4(EfiIpAddr) (*(IP4_ADDR *) ((EfiIpAddr).Addr))\r |
| 191 | #define EFI_NTOHL(EfiIp) (NTOHL (EFI_IP4 ((EfiIp))))\r |
| 192 | #define EFI_IP4_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv4_ADDRESS)) == 0)\r |
| 193 | \r |
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194 | #define EFI_IP6_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv6_ADDRESS)) == 0)\r |
| 195 | \r |
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196 | #define IP6_COPY_ADDRESS(Dest, Src) (CopyMem ((Dest), (Src), sizeof (EFI_IPv6_ADDRESS)))\r |
| 197 | #define IP6_COPY_LINK_ADDRESS(Mac1, Mac2) (CopyMem ((Mac1), (Mac2), sizeof (EFI_MAC_ADDRESS)))\r |
| 198 | \r |
| 199 | //\r |
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200 | // The debug level definition. This value is also used as the\r |
| 201 | // syslog's servity level. Don't change it.\r |
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202 | //\r |
| 203 | #define NETDEBUG_LEVEL_TRACE 5\r |
| 204 | #define NETDEBUG_LEVEL_WARNING 4\r |
| 205 | #define NETDEBUG_LEVEL_ERROR 3\r |
| 206 | \r |
| 207 | //\r |
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208 | // Network debug message is sent out as syslog packet.\r |
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209 | //\r |
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210 | #define NET_SYSLOG_FACILITY 16 // Syslog local facility local use\r |
| 211 | #define NET_SYSLOG_PACKET_LEN 512\r |
| 212 | #define NET_SYSLOG_TX_TIMEOUT (500 * 1000 * 10) // 500ms\r |
| 213 | #define NET_DEBUG_MSG_LEN 470 // 512 - (ether+ip4+udp4 head length)\r |
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214 | \r |
| 215 | //\r |
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216 | // The debug output expects the ASCII format string, Use %a to print ASCII\r |
| 217 | // string, and %s to print UNICODE string. PrintArg must be enclosed in ().\r |
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218 | // For example: NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name));\r |
| 219 | //\r |
| 220 | #define NET_DEBUG_TRACE(Module, PrintArg) \\r |
| 221 | NetDebugOutput ( \\r |
| 222 | NETDEBUG_LEVEL_TRACE, \\r |
| 223 | Module, \\r |
| 224 | __FILE__, \\r |
| 225 | __LINE__, \\r |
| 226 | NetDebugASPrint PrintArg \\r |
| 227 | )\r |
| 228 | \r |
| 229 | #define NET_DEBUG_WARNING(Module, PrintArg) \\r |
| 230 | NetDebugOutput ( \\r |
| 231 | NETDEBUG_LEVEL_WARNING, \\r |
| 232 | Module, \\r |
| 233 | __FILE__, \\r |
| 234 | __LINE__, \\r |
| 235 | NetDebugASPrint PrintArg \\r |
| 236 | )\r |
| 237 | \r |
| 238 | #define NET_DEBUG_ERROR(Module, PrintArg) \\r |
| 239 | NetDebugOutput ( \\r |
| 240 | NETDEBUG_LEVEL_ERROR, \\r |
| 241 | Module, \\r |
| 242 | __FILE__, \\r |
| 243 | __LINE__, \\r |
| 244 | NetDebugASPrint PrintArg \\r |
| 245 | )\r |
| 246 | \r |
| 247 | /**\r |
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248 | Allocate a buffer, then format the message to it. This is a\r |
| 249 | help function for the NET_DEBUG_XXX macros. The PrintArg of\r |
| 250 | these macros treats the variable length print parameters as a\r |
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251 | single parameter, and pass it to the NetDebugASPrint. For\r |
| 252 | example, NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name))\r |
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253 | if extracted to:\r |
| 254 | \r |
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255 | NetDebugOutput (\r |
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256 | NETDEBUG_LEVEL_TRACE,\r |
| 257 | "Tcp",\r |
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258 | __FILE__,\r |
| 259 | __LINE__,\r |
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260 | NetDebugASPrint ("State transit to %a\n", Name)\r |
| 261 | )\r |
| 262 | \r |
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263 | @param Format The ASCII format string.\r |
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264 | @param ... The variable length parameter whose format is determined\r |
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265 | by the Format string.\r |
| 266 | \r |
| 267 | @return The buffer containing the formatted message,\r |
| 268 | or NULL if failed to allocate memory.\r |
| 269 | \r |
| 270 | **/\r |
| 271 | CHAR8 *\r |
| 272 | NetDebugASPrint (\r |
| 273 | IN CHAR8 *Format,\r |
| 274 | ...\r |
| 275 | );\r |
| 276 | \r |
| 277 | /**\r |
| 278 | Builds an UDP4 syslog packet and send it using SNP.\r |
| 279 | \r |
| 280 | This function will locate a instance of SNP then send the message through it.\r |
| 281 | Because it isn't open the SNP BY_DRIVER, apply caution when using it.\r |
| 282 | \r |
| 283 | @param Level The servity level of the message.\r |
| 284 | @param Module The Moudle that generates the log.\r |
| 285 | @param File The file that contains the log.\r |
| 286 | @param Line The exact line that contains the log.\r |
| 287 | @param Message The user message to log.\r |
| 288 | \r |
| 289 | @retval EFI_INVALID_PARAMETER Any input parameter is invalid.\r |
| 290 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the packet\r |
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291 | @retval EFI_SUCCESS The log is discard because that it is more verbose\r |
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292 | than the mNetDebugLevelMax. Or, it has been sent out.\r |
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293 | **/\r |
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294 | EFI_STATUS\r |
| 295 | NetDebugOutput (\r |
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296 | IN UINT32 Level,\r |
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297 | IN UINT8 *Module,\r |
| 298 | IN UINT8 *File,\r |
| 299 | IN UINT32 Line,\r |
| 300 | IN UINT8 *Message\r |
| 301 | );\r |
| 302 | \r |
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303 | \r |
| 97b38d4e |
304 | /**\r |
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305 | Return the length of the mask.\r |
| 306 | \r |
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307 | Return the length of the mask. Valid values are 0 to 32.\r |
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308 | If the mask is invalid, return the invalid length 33, which is IP4_MASK_NUM.\r |
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309 | NetMask is in the host byte order.\r |
| 310 | \r |
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311 | @param[in] NetMask The netmask to get the length from.\r |
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312 | \r |
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313 | @return The length of the netmask, or IP4_MASK_NUM (33) if the mask is invalid.\r |
| 1204fe83 |
314 | \r |
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315 | **/\r |
| 316 | INTN\r |
| 317 | EFIAPI\r |
| 318 | NetGetMaskLength (\r |
| ae213b7d |
319 | IN IP4_ADDR NetMask\r |
| 97b38d4e |
320 | );\r |
| 321 | \r |
| 322 | /**\r |
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323 | Return the class of the IP address, such as class A, B, C.\r |
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324 | Addr is in host byte order.\r |
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325 | \r |
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326 | The address of class A starts with 0.\r |
| 327 | If the address belong to class A, return IP4_ADDR_CLASSA.\r |
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328 | The address of class B starts with 10.\r |
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329 | If the address belong to class B, return IP4_ADDR_CLASSB.\r |
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330 | The address of class C starts with 110.\r |
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331 | If the address belong to class C, return IP4_ADDR_CLASSC.\r |
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332 | The address of class D starts with 1110.\r |
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333 | If the address belong to class D, return IP4_ADDR_CLASSD.\r |
| 334 | The address of class E starts with 1111.\r |
| 335 | If the address belong to class E, return IP4_ADDR_CLASSE.\r |
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336 | \r |
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337 | \r |
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338 | @param[in] Addr The address to get the class from.\r |
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339 | \r |
| ae213b7d |
340 | @return IP address class, such as IP4_ADDR_CLASSA.\r |
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341 | \r |
| 342 | **/\r |
| 343 | INTN\r |
| 344 | EFIAPI\r |
| 345 | NetGetIpClass (\r |
| 346 | IN IP4_ADDR Addr\r |
| 347 | );\r |
| 348 | \r |
| 349 | /**\r |
| 350 | Check whether the IP is a valid unicast address according to\r |
| 3a1ab4bc |
351 | the netmask. If NetMask is zero, use the IP address's class to get the default mask.\r |
| 1204fe83 |
352 | \r |
| 3a1ab4bc |
353 | If Ip is 0, IP is not a valid unicast address.\r |
| 354 | Class D address is used for multicasting and class E address is reserved for future. If Ip\r |
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355 | belongs to class D or class E, Ip is not a valid unicast address.\r |
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356 | If all bits of the host address of Ip are 0 or 1, Ip is not a valid unicast address.\r |
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357 | \r |
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358 | @param[in] Ip The IP to check against.\r |
| 359 | @param[in] NetMask The mask of the IP.\r |
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360 | \r |
| e9b67286 |
361 | @return TRUE if Ip is a valid unicast address on the network, otherwise FALSE.\r |
| 97b38d4e |
362 | \r |
| 363 | **/\r |
| 364 | BOOLEAN\r |
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365 | EFIAPI\r |
| f6b7393c |
366 | NetIp4IsUnicast (\r |
| 97b38d4e |
367 | IN IP4_ADDR Ip,\r |
| 368 | IN IP4_ADDR NetMask\r |
| 369 | );\r |
| 370 | \r |
| fb115c61 |
371 | /**\r |
| 372 | Check whether the incoming IPv6 address is a valid unicast address.\r |
| 373 | \r |
| 374 | If the address is a multicast address has binary 0xFF at the start, it is not\r |
| 375 | a valid unicast address. If the address is unspecified ::, it is not a valid\r |
| 376 | unicast address to be assigned to any node. If the address is loopback address\r |
| 377 | ::1, it is also not a valid unicast address to be assigned to any physical\r |
| 1204fe83 |
378 | interface.\r |
| fb115c61 |
379 | \r |
| 380 | @param[in] Ip6 The IPv6 address to check against.\r |
| 381 | \r |
| 382 | @return TRUE if Ip6 is a valid unicast address on the network, otherwise FALSE.\r |
| 383 | \r |
| 1204fe83 |
384 | **/\r |
| fb115c61 |
385 | BOOLEAN\r |
| f6b7393c |
386 | NetIp6IsValidUnicast (\r |
| 387 | IN EFI_IPv6_ADDRESS *Ip6\r |
| 388 | );\r |
| 389 | \r |
| 390 | \r |
| 391 | /**\r |
| 392 | Check whether the incoming Ipv6 address is the unspecified address or not.\r |
| 393 | \r |
| 394 | @param[in] Ip6 - Ip6 address, in network order.\r |
| 395 | \r |
| 396 | @retval TRUE - Yes, unspecified\r |
| 397 | @retval FALSE - No\r |
| 1204fe83 |
398 | \r |
| f6b7393c |
399 | **/\r |
| 400 | BOOLEAN\r |
| 401 | NetIp6IsUnspecifiedAddr (\r |
| fb115c61 |
402 | IN EFI_IPv6_ADDRESS *Ip6\r |
| 403 | );\r |
| 404 | \r |
| f6b7393c |
405 | /**\r |
| 406 | Check whether the incoming Ipv6 address is a link-local address.\r |
| 407 | \r |
| 408 | @param[in] Ip6 - Ip6 address, in network order.\r |
| 409 | \r |
| 410 | @retval TRUE - Yes, link-local address\r |
| 411 | @retval FALSE - No\r |
| 1204fe83 |
412 | \r |
| f6b7393c |
413 | **/\r |
| 414 | BOOLEAN\r |
| 415 | NetIp6IsLinkLocalAddr (\r |
| 416 | IN EFI_IPv6_ADDRESS *Ip6\r |
| 417 | );\r |
| 418 | \r |
| 419 | /**\r |
| 420 | Check whether the Ipv6 address1 and address2 are on the connected network.\r |
| 421 | \r |
| 422 | @param[in] Ip1 - Ip6 address1, in network order.\r |
| 423 | @param[in] Ip2 - Ip6 address2, in network order.\r |
| 424 | @param[in] PrefixLength - The prefix length of the checking net.\r |
| 425 | \r |
| 426 | @retval TRUE - Yes, connected.\r |
| 427 | @retval FALSE - No.\r |
| 1204fe83 |
428 | \r |
| f6b7393c |
429 | **/\r |
| 430 | BOOLEAN\r |
| 431 | NetIp6IsNetEqual (\r |
| 432 | EFI_IPv6_ADDRESS *Ip1,\r |
| 433 | EFI_IPv6_ADDRESS *Ip2,\r |
| 434 | UINT8 PrefixLength\r |
| 435 | );\r |
| 436 | \r |
| b45b45b2 |
437 | /**\r |
| 438 | Switches the endianess of an IPv6 address\r |
| 439 | \r |
| 440 | This function swaps the bytes in a 128-bit IPv6 address to switch the value\r |
| 441 | from little endian to big endian or vice versa. The byte swapped value is\r |
| 442 | returned.\r |
| 443 | \r |
| 444 | @param Ip6 Points to an IPv6 address\r |
| 445 | \r |
| 446 | @return The byte swapped IPv6 address.\r |
| 447 | \r |
| 448 | **/\r |
| 449 | EFI_IPv6_ADDRESS *\r |
| 450 | Ip6Swap128 (\r |
| 451 | EFI_IPv6_ADDRESS *Ip6\r |
| 452 | );\r |
| 453 | \r |
| 8d7e5af1 |
454 | extern IP4_ADDR gIp4AllMasks[IP4_MASK_NUM];\r |
| 97b38d4e |
455 | \r |
| 456 | \r |
| 457 | extern EFI_IPv4_ADDRESS mZeroIp4Addr;\r |
| 458 | \r |
| 459 | #define NET_IS_DIGIT(Ch) (('0' <= (Ch)) && ((Ch) <= '9'))\r |
| 460 | #define NET_ROUNDUP(size, unit) (((size) + (unit) - 1) & (~((unit) - 1)))\r |
| 461 | #define NET_IS_LOWER_CASE_CHAR(Ch) (('a' <= (Ch)) && ((Ch) <= 'z'))\r |
| 462 | #define NET_IS_UPPER_CASE_CHAR(Ch) (('A' <= (Ch)) && ((Ch) <= 'Z'))\r |
| 463 | \r |
| 464 | #define TICKS_PER_MS 10000U\r |
| 465 | #define TICKS_PER_SECOND 10000000U\r |
| 466 | \r |
| 467 | #define NET_RANDOM(Seed) ((UINT32) ((UINT32) (Seed) * 1103515245UL + 12345) % 4294967295UL)\r |
| 468 | \r |
| 469 | /**\r |
| 3a1ab4bc |
470 | Extract a UINT32 from a byte stream.\r |
| 1204fe83 |
471 | \r |
| 472 | This function copies a UINT32 from a byte stream, and then converts it from Network\r |
| 3a1ab4bc |
473 | byte order to host byte order. Use this function to avoid alignment error.\r |
| 97b38d4e |
474 | \r |
| ae213b7d |
475 | @param[in] Buf The buffer to extract the UINT32.\r |
| 97b38d4e |
476 | \r |
| 477 | @return The UINT32 extracted.\r |
| 478 | \r |
| 479 | **/\r |
| 480 | UINT32\r |
| 481 | EFIAPI\r |
| 482 | NetGetUint32 (\r |
| 483 | IN UINT8 *Buf\r |
| 484 | );\r |
| 485 | \r |
| 486 | /**\r |
| 1204fe83 |
487 | Puts a UINT32 into the byte stream in network byte order.\r |
| 488 | \r |
| 489 | Converts a UINT32 from host byte order to network byte order, and then copies it to the\r |
| 3a1ab4bc |
490 | byte stream.\r |
| 97b38d4e |
491 | \r |
| ae213b7d |
492 | @param[in, out] Buf The buffer to put the UINT32.\r |
| 493 | @param[in] Data The data to put.\r |
| 1204fe83 |
494 | \r |
| 97b38d4e |
495 | **/\r |
| 496 | VOID\r |
| 497 | EFIAPI\r |
| 498 | NetPutUint32 (\r |
| ae213b7d |
499 | IN OUT UINT8 *Buf,\r |
| 500 | IN UINT32 Data\r |
| 97b38d4e |
501 | );\r |
| 502 | \r |
| 503 | /**\r |
| 504 | Initialize a random seed using current time.\r |
| 1204fe83 |
505 | \r |
| 506 | Get current time first. Then initialize a random seed based on some basic\r |
| 507 | mathematical operations on the hour, day, minute, second, nanosecond and year\r |
| 3a1ab4bc |
508 | of the current time.\r |
| 1204fe83 |
509 | \r |
| e9b67286 |
510 | @return The random seed, initialized with current time.\r |
| 97b38d4e |
511 | \r |
| 512 | **/\r |
| 513 | UINT32\r |
| 514 | EFIAPI\r |
| 515 | NetRandomInitSeed (\r |
| 516 | VOID\r |
| 517 | );\r |
| 518 | \r |
| 519 | \r |
| 520 | #define NET_LIST_USER_STRUCT(Entry, Type, Field) \\r |
| 50d7ebad |
521 | BASE_CR(Entry, Type, Field)\r |
| 97b38d4e |
522 | \r |
| 523 | #define NET_LIST_USER_STRUCT_S(Entry, Type, Field, Sig) \\r |
| 524 | CR(Entry, Type, Field, Sig)\r |
| 525 | \r |
| 526 | //\r |
| e9b67286 |
527 | // Iterate through the double linked list. It is NOT delete safe\r |
| 97b38d4e |
528 | //\r |
| 529 | #define NET_LIST_FOR_EACH(Entry, ListHead) \\r |
| 530 | for(Entry = (ListHead)->ForwardLink; Entry != (ListHead); Entry = Entry->ForwardLink)\r |
| 531 | \r |
| 532 | //\r |
| e9b67286 |
533 | // Iterate through the double linked list. This is delete-safe.\r |
| 97b38d4e |
534 | // Don't touch NextEntry. Also, don't use this macro if list\r |
| 535 | // entries other than the Entry may be deleted when processing\r |
| 536 | // the current Entry.\r |
| 537 | //\r |
| 538 | #define NET_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \\r |
| 539 | for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink; \\r |
| 540 | Entry != (ListHead); \\r |
| 541 | Entry = NextEntry, NextEntry = Entry->ForwardLink \\r |
| 542 | )\r |
| 543 | \r |
| 544 | //\r |
| e9b67286 |
545 | // Make sure the list isn't empty before getting the first/last record.\r |
| 97b38d4e |
546 | //\r |
| 547 | #define NET_LIST_HEAD(ListHead, Type, Field) \\r |
| 548 | NET_LIST_USER_STRUCT((ListHead)->ForwardLink, Type, Field)\r |
| 549 | \r |
| 550 | #define NET_LIST_TAIL(ListHead, Type, Field) \\r |
| 551 | NET_LIST_USER_STRUCT((ListHead)->BackLink, Type, Field)\r |
| 552 | \r |
| 553 | \r |
| 554 | /**\r |
| 3a1ab4bc |
555 | Remove the first node entry on the list, and return the removed node entry.\r |
| 1204fe83 |
556 | \r |
| e9b67286 |
557 | Removes the first node entry from a doubly linked list. It is up to the caller of\r |
| 558 | this function to release the memory used by the first node, if that is required. On\r |
| 1204fe83 |
559 | exit, the removed node is returned.\r |
| 3a1ab4bc |
560 | \r |
| 561 | If Head is NULL, then ASSERT().\r |
| 562 | If Head was not initialized, then ASSERT().\r |
| 563 | If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r |
| 564 | linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r |
| 1204fe83 |
565 | then ASSERT().\r |
| 97b38d4e |
566 | \r |
| ae213b7d |
567 | @param[in, out] Head The list header.\r |
| 97b38d4e |
568 | \r |
| 3a1ab4bc |
569 | @return The first node entry that is removed from the list, NULL if the list is empty.\r |
| 97b38d4e |
570 | \r |
| 571 | **/\r |
| 572 | LIST_ENTRY *\r |
| 573 | EFIAPI\r |
| 574 | NetListRemoveHead (\r |
| ae213b7d |
575 | IN OUT LIST_ENTRY *Head\r |
| 97b38d4e |
576 | );\r |
| 577 | \r |
| 578 | /**\r |
| e9b67286 |
579 | Remove the last node entry on the list and return the removed node entry.\r |
| 3a1ab4bc |
580 | \r |
| 581 | Removes the last node entry from a doubly linked list. It is up to the caller of\r |
| e9b67286 |
582 | this function to release the memory used by the first node, if that is required. On\r |
| 1204fe83 |
583 | exit, the removed node is returned.\r |
| 97b38d4e |
584 | \r |
| 3a1ab4bc |
585 | If Head is NULL, then ASSERT().\r |
| 586 | If Head was not initialized, then ASSERT().\r |
| 587 | If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r |
| 588 | linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r |
| 1204fe83 |
589 | then ASSERT().\r |
| 590 | \r |
| ae213b7d |
591 | @param[in, out] Head The list head.\r |
| 97b38d4e |
592 | \r |
| 3a1ab4bc |
593 | @return The last node entry that is removed from the list, NULL if the list is empty.\r |
| 97b38d4e |
594 | \r |
| 595 | **/\r |
| 596 | LIST_ENTRY *\r |
| 597 | EFIAPI\r |
| 598 | NetListRemoveTail (\r |
| ae213b7d |
599 | IN OUT LIST_ENTRY *Head\r |
| 97b38d4e |
600 | );\r |
| 601 | \r |
| 602 | /**\r |
| 3a1ab4bc |
603 | Insert a new node entry after a designated node entry of a doubly linked list.\r |
| 1204fe83 |
604 | \r |
| e9b67286 |
605 | Inserts a new node entry designated by NewEntry after the node entry designated by PrevEntry\r |
| 3a1ab4bc |
606 | of the doubly linked list.\r |
| 1204fe83 |
607 | \r |
| 608 | @param[in, out] PrevEntry The entry after which to insert.\r |
| ae213b7d |
609 | @param[in, out] NewEntry The new entry to insert.\r |
| 97b38d4e |
610 | \r |
| 611 | **/\r |
| 612 | VOID\r |
| 613 | EFIAPI\r |
| 614 | NetListInsertAfter (\r |
| ae213b7d |
615 | IN OUT LIST_ENTRY *PrevEntry,\r |
| 616 | IN OUT LIST_ENTRY *NewEntry\r |
| 97b38d4e |
617 | );\r |
| 618 | \r |
| 619 | /**\r |
| 3a1ab4bc |
620 | Insert a new node entry before a designated node entry of a doubly linked list.\r |
| 1204fe83 |
621 | \r |
| e9b67286 |
622 | Inserts a new node entry designated by NewEntry before the node entry designated by PostEntry\r |
| 3a1ab4bc |
623 | of the doubly linked list.\r |
| 1204fe83 |
624 | \r |
| ae213b7d |
625 | @param[in, out] PostEntry The entry to insert before.\r |
| 626 | @param[in, out] NewEntry The new entry to insert.\r |
| 97b38d4e |
627 | \r |
| 628 | **/\r |
| 629 | VOID\r |
| 630 | EFIAPI\r |
| 631 | NetListInsertBefore (\r |
| ae213b7d |
632 | IN OUT LIST_ENTRY *PostEntry,\r |
| 633 | IN OUT LIST_ENTRY *NewEntry\r |
| 97b38d4e |
634 | );\r |
| 635 | \r |
| 636 | \r |
| 637 | //\r |
| 638 | // Object container: EFI network stack spec defines various kinds of\r |
| 639 | // tokens. The drivers can share code to manage those objects.\r |
| 640 | //\r |
| 641 | typedef struct {\r |
| 642 | LIST_ENTRY Link;\r |
| 643 | VOID *Key;\r |
| 644 | VOID *Value;\r |
| 645 | } NET_MAP_ITEM;\r |
| 646 | \r |
| 647 | typedef struct {\r |
| 648 | LIST_ENTRY Used;\r |
| 649 | LIST_ENTRY Recycled;\r |
| 650 | UINTN Count;\r |
| 651 | } NET_MAP;\r |
| 652 | \r |
| 653 | #define NET_MAP_INCREAMENT 64\r |
| 654 | \r |
| 655 | /**\r |
| 656 | Initialize the netmap. Netmap is a reposity to keep the <Key, Value> pairs.\r |
| 1204fe83 |
657 | \r |
| 658 | Initialize the forward and backward links of two head nodes donated by Map->Used\r |
| 3a1ab4bc |
659 | and Map->Recycled of two doubly linked lists.\r |
| 660 | Initializes the count of the <Key, Value> pairs in the netmap to zero.\r |
| 1204fe83 |
661 | \r |
| 3a1ab4bc |
662 | If Map is NULL, then ASSERT().\r |
| 663 | If the address of Map->Used is NULL, then ASSERT().\r |
| 664 | If the address of Map->Recycled is NULl, then ASSERT().\r |
| 1204fe83 |
665 | \r |
| ae213b7d |
666 | @param[in, out] Map The netmap to initialize.\r |
| 97b38d4e |
667 | \r |
| 668 | **/\r |
| 669 | VOID\r |
| 670 | EFIAPI\r |
| 671 | NetMapInit (\r |
| ae213b7d |
672 | IN OUT NET_MAP *Map\r |
| 97b38d4e |
673 | );\r |
| 674 | \r |
| 675 | /**\r |
| 676 | To clean up the netmap, that is, release allocated memories.\r |
| 1204fe83 |
677 | \r |
| e9b67286 |
678 | Removes all nodes of the Used doubly linked list and frees memory of all related netmap items.\r |
| 3a1ab4bc |
679 | Removes all nodes of the Recycled doubly linked list and free memory of all related netmap items.\r |
| e9b67286 |
680 | The number of the <Key, Value> pairs in the netmap is set to zero.\r |
| 1204fe83 |
681 | \r |
| 3a1ab4bc |
682 | If Map is NULL, then ASSERT().\r |
| 1204fe83 |
683 | \r |
| ae213b7d |
684 | @param[in, out] Map The netmap to clean up.\r |
| 97b38d4e |
685 | \r |
| 686 | **/\r |
| 687 | VOID\r |
| 688 | EFIAPI\r |
| 689 | NetMapClean (\r |
| ae213b7d |
690 | IN OUT NET_MAP *Map\r |
| 97b38d4e |
691 | );\r |
| 692 | \r |
| 693 | /**\r |
| 3a1ab4bc |
694 | Test whether the netmap is empty and return true if it is.\r |
| 1204fe83 |
695 | \r |
| 3a1ab4bc |
696 | If the number of the <Key, Value> pairs in the netmap is zero, return TRUE.\r |
| 1204fe83 |
697 | \r |
| 3a1ab4bc |
698 | If Map is NULL, then ASSERT().\r |
| 1204fe83 |
699 | \r |
| 700 | \r |
| ae213b7d |
701 | @param[in] Map The net map to test.\r |
| 97b38d4e |
702 | \r |
| 703 | @return TRUE if the netmap is empty, otherwise FALSE.\r |
| 704 | \r |
| 705 | **/\r |
| 706 | BOOLEAN\r |
| 707 | EFIAPI\r |
| 708 | NetMapIsEmpty (\r |
| 709 | IN NET_MAP *Map\r |
| 710 | );\r |
| 711 | \r |
| 712 | /**\r |
| 713 | Return the number of the <Key, Value> pairs in the netmap.\r |
| 714 | \r |
| ae213b7d |
715 | @param[in] Map The netmap to get the entry number.\r |
| 97b38d4e |
716 | \r |
| 717 | @return The entry number in the netmap.\r |
| 718 | \r |
| 719 | **/\r |
| 720 | UINTN\r |
| 721 | EFIAPI\r |
| 722 | NetMapGetCount (\r |
| 723 | IN NET_MAP *Map\r |
| 724 | );\r |
| 725 | \r |
| 726 | /**\r |
| 727 | Allocate an item to save the <Key, Value> pair to the head of the netmap.\r |
| 1204fe83 |
728 | \r |
| 3a1ab4bc |
729 | Allocate an item to save the <Key, Value> pair and add corresponding node entry\r |
| 1204fe83 |
730 | to the beginning of the Used doubly linked list. The number of the <Key, Value>\r |
| 3a1ab4bc |
731 | pairs in the netmap increase by 1.\r |
| 97b38d4e |
732 | \r |
| 3a1ab4bc |
733 | If Map is NULL, then ASSERT().\r |
| 1204fe83 |
734 | \r |
| ae213b7d |
735 | @param[in, out] Map The netmap to insert into.\r |
| 736 | @param[in] Key The user's key.\r |
| 737 | @param[in] Value The user's value for the key.\r |
| 97b38d4e |
738 | \r |
| ae213b7d |
739 | @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r |
| 740 | @retval EFI_SUCCESS The item is inserted to the head.\r |
| 97b38d4e |
741 | \r |
| 742 | **/\r |
| 743 | EFI_STATUS\r |
| 744 | EFIAPI\r |
| 745 | NetMapInsertHead (\r |
| ae213b7d |
746 | IN OUT NET_MAP *Map,\r |
| 97b38d4e |
747 | IN VOID *Key,\r |
| 748 | IN VOID *Value OPTIONAL\r |
| 749 | );\r |
| 750 | \r |
| 751 | /**\r |
| 752 | Allocate an item to save the <Key, Value> pair to the tail of the netmap.\r |
| 753 | \r |
| 3a1ab4bc |
754 | Allocate an item to save the <Key, Value> pair and add corresponding node entry\r |
| 1204fe83 |
755 | to the tail of the Used doubly linked list. The number of the <Key, Value>\r |
| 3a1ab4bc |
756 | pairs in the netmap increase by 1.\r |
| 757 | \r |
| 758 | If Map is NULL, then ASSERT().\r |
| 1204fe83 |
759 | \r |
| ae213b7d |
760 | @param[in, out] Map The netmap to insert into.\r |
| 761 | @param[in] Key The user's key.\r |
| 762 | @param[in] Value The user's value for the key.\r |
| 97b38d4e |
763 | \r |
| ae213b7d |
764 | @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r |
| 765 | @retval EFI_SUCCESS The item is inserted to the tail.\r |
| 97b38d4e |
766 | \r |
| 767 | **/\r |
| 768 | EFI_STATUS\r |
| 769 | EFIAPI\r |
| 770 | NetMapInsertTail (\r |
| ae213b7d |
771 | IN OUT NET_MAP *Map,\r |
| 97b38d4e |
772 | IN VOID *Key,\r |
| 773 | IN VOID *Value OPTIONAL\r |
| 774 | );\r |
| 775 | \r |
| 776 | /**\r |
| e9b67286 |
777 | Finds the key in the netmap and returns the point to the item containing the Key.\r |
| 1204fe83 |
778 | \r |
| 779 | Iterate the Used doubly linked list of the netmap to get every item. Compare the key of every\r |
| 3a1ab4bc |
780 | item with the key to search. It returns the point to the item contains the Key if found.\r |
| 97b38d4e |
781 | \r |
| 3a1ab4bc |
782 | If Map is NULL, then ASSERT().\r |
| 1204fe83 |
783 | \r |
| ae213b7d |
784 | @param[in] Map The netmap to search within.\r |
| 785 | @param[in] Key The key to search.\r |
| 97b38d4e |
786 | \r |
| 787 | @return The point to the item contains the Key, or NULL if Key isn't in the map.\r |
| 788 | \r |
| 789 | **/\r |
| ae213b7d |
790 | NET_MAP_ITEM *\r |
| 97b38d4e |
791 | EFIAPI\r |
| 792 | NetMapFindKey (\r |
| 793 | IN NET_MAP *Map,\r |
| 794 | IN VOID *Key\r |
| 795 | );\r |
| 796 | \r |
| 797 | /**\r |
| 3a1ab4bc |
798 | Remove the node entry of the item from the netmap and return the key of the removed item.\r |
| 1204fe83 |
799 | \r |
| 800 | Remove the node entry of the item from the Used doubly linked list of the netmap.\r |
| 801 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r |
| 3a1ab4bc |
802 | entry of the item to the Recycled doubly linked list of the netmap. If Value is not NULL,\r |
| 803 | Value will point to the value of the item. It returns the key of the removed item.\r |
| 1204fe83 |
804 | \r |
| 3a1ab4bc |
805 | If Map is NULL, then ASSERT().\r |
| 806 | If Item is NULL, then ASSERT().\r |
| 807 | if item in not in the netmap, then ASSERT().\r |
| 1204fe83 |
808 | \r |
| ae213b7d |
809 | @param[in, out] Map The netmap to remove the item from.\r |
| 810 | @param[in, out] Item The item to remove.\r |
| 811 | @param[out] Value The variable to receive the value if not NULL.\r |
| 97b38d4e |
812 | \r |
| ae213b7d |
813 | @return The key of the removed item.\r |
| 97b38d4e |
814 | \r |
| 815 | **/\r |
| 816 | VOID *\r |
| 817 | EFIAPI\r |
| 818 | NetMapRemoveItem (\r |
| ae213b7d |
819 | IN OUT NET_MAP *Map,\r |
| 820 | IN OUT NET_MAP_ITEM *Item,\r |
| 821 | OUT VOID **Value OPTIONAL\r |
| 97b38d4e |
822 | );\r |
| 823 | \r |
| 824 | /**\r |
| 3a1ab4bc |
825 | Remove the first node entry on the netmap and return the key of the removed item.\r |
| 97b38d4e |
826 | \r |
| 1204fe83 |
827 | Remove the first node entry from the Used doubly linked list of the netmap.\r |
| 828 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r |
| 3a1ab4bc |
829 | entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r |
| 830 | parameter Value will point to the value of the item. It returns the key of the removed item.\r |
| 1204fe83 |
831 | \r |
| 3a1ab4bc |
832 | If Map is NULL, then ASSERT().\r |
| 833 | If the Used doubly linked list is empty, then ASSERT().\r |
| 1204fe83 |
834 | \r |
| ae213b7d |
835 | @param[in, out] Map The netmap to remove the head from.\r |
| 836 | @param[out] Value The variable to receive the value if not NULL.\r |
| 97b38d4e |
837 | \r |
| ae213b7d |
838 | @return The key of the item removed.\r |
| 97b38d4e |
839 | \r |
| 840 | **/\r |
| 841 | VOID *\r |
| 842 | EFIAPI\r |
| 843 | NetMapRemoveHead (\r |
| ae213b7d |
844 | IN OUT NET_MAP *Map,\r |
| 845 | OUT VOID **Value OPTIONAL\r |
| 97b38d4e |
846 | );\r |
| 847 | \r |
| 848 | /**\r |
| 3a1ab4bc |
849 | Remove the last node entry on the netmap and return the key of the removed item.\r |
| 97b38d4e |
850 | \r |
| 1204fe83 |
851 | Remove the last node entry from the Used doubly linked list of the netmap.\r |
| 852 | The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r |
| 3a1ab4bc |
853 | entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r |
| 854 | parameter Value will point to the value of the item. It returns the key of the removed item.\r |
| 1204fe83 |
855 | \r |
| 3a1ab4bc |
856 | If Map is NULL, then ASSERT().\r |
| 857 | If the Used doubly linked list is empty, then ASSERT().\r |
| 1204fe83 |
858 | \r |
| ae213b7d |
859 | @param[in, out] Map The netmap to remove the tail from.\r |
| 860 | @param[out] Value The variable to receive the value if not NULL.\r |
| 97b38d4e |
861 | \r |
| ae213b7d |
862 | @return The key of the item removed.\r |
| 97b38d4e |
863 | \r |
| 864 | **/\r |
| 865 | VOID *\r |
| 866 | EFIAPI\r |
| 867 | NetMapRemoveTail (\r |
| ae213b7d |
868 | IN OUT NET_MAP *Map,\r |
| 869 | OUT VOID **Value OPTIONAL\r |
| 97b38d4e |
870 | );\r |
| 871 | \r |
| 872 | typedef\r |
| 873 | EFI_STATUS\r |
| 874 | (*NET_MAP_CALLBACK) (\r |
| 875 | IN NET_MAP *Map,\r |
| 876 | IN NET_MAP_ITEM *Item,\r |
| 877 | IN VOID *Arg\r |
| 878 | );\r |
| 879 | \r |
| 880 | /**\r |
| 3a1ab4bc |
881 | Iterate through the netmap and call CallBack for each item.\r |
| 1204fe83 |
882 | \r |
| 3a1ab4bc |
883 | It will contiue the traverse if CallBack returns EFI_SUCCESS, otherwise, break\r |
| 1204fe83 |
884 | from the loop. It returns the CallBack's last return value. This function is\r |
| 3a1ab4bc |
885 | delete safe for the current item.\r |
| 97b38d4e |
886 | \r |
| 3a1ab4bc |
887 | If Map is NULL, then ASSERT().\r |
| 888 | If CallBack is NULL, then ASSERT().\r |
| 1204fe83 |
889 | \r |
| ae213b7d |
890 | @param[in] Map The Map to iterate through.\r |
| 891 | @param[in] CallBack The callback function to call for each item.\r |
| 892 | @param[in] Arg The opaque parameter to the callback.\r |
| 97b38d4e |
893 | \r |
| ae213b7d |
894 | @retval EFI_SUCCESS There is no item in the netmap or CallBack for each item\r |
| 895 | return EFI_SUCCESS.\r |
| 896 | @retval Others It returns the CallBack's last return value.\r |
| 97b38d4e |
897 | \r |
| 898 | **/\r |
| 899 | EFI_STATUS\r |
| 900 | EFIAPI\r |
| 901 | NetMapIterate (\r |
| 902 | IN NET_MAP *Map,\r |
| 903 | IN NET_MAP_CALLBACK CallBack,\r |
| f6b7393c |
904 | IN VOID *Arg OPTIONAL\r |
| 97b38d4e |
905 | );\r |
| 906 | \r |
| 907 | \r |
| 908 | //\r |
| 909 | // Helper functions to implement driver binding and service binding protocols.\r |
| 910 | //\r |
| 911 | /**\r |
| 912 | Create a child of the service that is identified by ServiceBindingGuid.\r |
| 1204fe83 |
913 | \r |
| 3a1ab4bc |
914 | Get the ServiceBinding Protocol first, then use it to create a child.\r |
| 97b38d4e |
915 | \r |
| 3a1ab4bc |
916 | If ServiceBindingGuid is NULL, then ASSERT().\r |
| 917 | If ChildHandle is NULL, then ASSERT().\r |
| 1204fe83 |
918 | \r |
| ae213b7d |
919 | @param[in] Controller The controller which has the service installed.\r |
| 920 | @param[in] Image The image handle used to open service.\r |
| 921 | @param[in] ServiceBindingGuid The service's Guid.\r |
| e9b67286 |
922 | @param[in, out] ChildHandle The handle to receive the created child.\r |
| 97b38d4e |
923 | \r |
| e9b67286 |
924 | @retval EFI_SUCCESS The child was successfully created.\r |
| 97b38d4e |
925 | @retval Others Failed to create the child.\r |
| 926 | \r |
| 927 | **/\r |
| 928 | EFI_STATUS\r |
| 929 | EFIAPI\r |
| 930 | NetLibCreateServiceChild (\r |
| ae213b7d |
931 | IN EFI_HANDLE Controller,\r |
| 932 | IN EFI_HANDLE Image,\r |
| 97b38d4e |
933 | IN EFI_GUID *ServiceBindingGuid,\r |
| ae213b7d |
934 | IN OUT EFI_HANDLE *ChildHandle\r |
| 97b38d4e |
935 | );\r |
| 936 | \r |
| 937 | /**\r |
| e9b67286 |
938 | Destroy a child of the service that is identified by ServiceBindingGuid.\r |
| 1204fe83 |
939 | \r |
| 3a1ab4bc |
940 | Get the ServiceBinding Protocol first, then use it to destroy a child.\r |
| 1204fe83 |
941 | \r |
| 3a1ab4bc |
942 | If ServiceBindingGuid is NULL, then ASSERT().\r |
| 1204fe83 |
943 | \r |
| ae213b7d |
944 | @param[in] Controller The controller which has the service installed.\r |
| 945 | @param[in] Image The image handle used to open service.\r |
| 946 | @param[in] ServiceBindingGuid The service's Guid.\r |
| e9b67286 |
947 | @param[in] ChildHandle The child to destroy.\r |
| 97b38d4e |
948 | \r |
| e9b67286 |
949 | @retval EFI_SUCCESS The child is successfully destroyed.\r |
| 950 | @retval Others Failed to destroy the child.\r |
| 97b38d4e |
951 | \r |
| 952 | **/\r |
| 953 | EFI_STATUS\r |
| 954 | EFIAPI\r |
| 955 | NetLibDestroyServiceChild (\r |
| ae213b7d |
956 | IN EFI_HANDLE Controller,\r |
| 957 | IN EFI_HANDLE Image,\r |
| 97b38d4e |
958 | IN EFI_GUID *ServiceBindingGuid,\r |
| 959 | IN EFI_HANDLE ChildHandle\r |
| 960 | );\r |
| 961 | \r |
| 962 | /**\r |
| 963 | Convert the mac address of the simple network protocol installed on\r |
| 964 | SnpHandle to a unicode string. Callers are responsible for freeing the\r |
| 965 | string storage.\r |
| 966 | \r |
| 3a1ab4bc |
967 | Get the mac address of the Simple Network protocol from the SnpHandle. Then convert\r |
| 968 | the mac address into a unicode string. It takes 2 unicode characters to represent \r |
| e9b67286 |
969 | a 1 byte binary buffer, plus one unicode character for the null terminator.\r |
| 3a1ab4bc |
970 | \r |
| 971 | \r |
| e9b67286 |
972 | @param[in] SnpHandle The handle on which the simple network protocol is\r |
| 973 | installed.\r |
| 974 | @param[in] ImageHandle The image handle to act as the agent handle to\r |
| ae213b7d |
975 | get the simple network protocol.\r |
| 976 | @param[out] MacString The pointer to store the address of the string\r |
| 977 | representation of the mac address.\r |
| 1204fe83 |
978 | \r |
| 979 | @retval EFI_SUCCESS Convert the mac address a unicode string successfully.\r |
| 980 | @retval EFI_OUT_OF_RESOURCES There are not enough memory resource.\r |
| ae213b7d |
981 | @retval Others Failed to open the simple network protocol.\r |
| 97b38d4e |
982 | \r |
| 983 | **/\r |
| 984 | EFI_STATUS\r |
| 985 | EFIAPI\r |
| 986 | NetLibGetMacString (\r |
| ae213b7d |
987 | IN EFI_HANDLE SnpHandle,\r |
| 988 | IN EFI_HANDLE ImageHandle,\r |
| 989 | OUT CHAR16 **MacString\r |
| 97b38d4e |
990 | );\r |
| 991 | \r |
| 992 | /**\r |
| 993 | Create an IPv4 device path node.\r |
| 1204fe83 |
994 | \r |
| 3a1ab4bc |
995 | The header type of IPv4 device path node is MESSAGING_DEVICE_PATH.\r |
| 996 | The header subtype of IPv4 device path node is MSG_IPv4_DP.\r |
| 997 | The length of the IPv4 device path node in bytes is 19.\r |
| 998 | Get other info from parameters to make up the whole IPv4 device path node.\r |
| 97b38d4e |
999 | \r |
| ae213b7d |
1000 | @param[in, out] Node Pointer to the IPv4 device path node.\r |
| f6b7393c |
1001 | @param[in] Controller The controller handle.\r |
| ae213b7d |
1002 | @param[in] LocalIp The local IPv4 address.\r |
| 1003 | @param[in] LocalPort The local port.\r |
| 1004 | @param[in] RemoteIp The remote IPv4 address.\r |
| 1005 | @param[in] RemotePort The remote port.\r |
| 1006 | @param[in] Protocol The protocol type in the IP header.\r |
| 1007 | @param[in] UseDefaultAddress Whether this instance is using default address or not.\r |
| 97b38d4e |
1008 | \r |
| 97b38d4e |
1009 | **/\r |
| 1010 | VOID\r |
| 1011 | EFIAPI\r |
| 1012 | NetLibCreateIPv4DPathNode (\r |
| 1013 | IN OUT IPv4_DEVICE_PATH *Node,\r |
| 1014 | IN EFI_HANDLE Controller,\r |
| 1015 | IN IP4_ADDR LocalIp,\r |
| 1016 | IN UINT16 LocalPort,\r |
| 1017 | IN IP4_ADDR RemoteIp,\r |
| 1018 | IN UINT16 RemotePort,\r |
| 1019 | IN UINT16 Protocol,\r |
| 1020 | IN BOOLEAN UseDefaultAddress\r |
| 1021 | );\r |
| 1022 | \r |
| f6b7393c |
1023 | /**\r |
| 1024 | Create an IPv6 device path node.\r |
| 1204fe83 |
1025 | \r |
| f6b7393c |
1026 | The header type of IPv6 device path node is MESSAGING_DEVICE_PATH.\r |
| 1027 | The header subtype of IPv6 device path node is MSG_IPv6_DP.\r |
| 1028 | The length of the IPv6 device path node in bytes is 43.\r |
| 1029 | Get other info from parameters to make up the whole IPv6 device path node.\r |
| 1030 | \r |
| 1031 | @param[in, out] Node Pointer to the IPv6 device path node.\r |
| 1032 | @param[in] Controller The controller handle.\r |
| 1033 | @param[in] LocalIp The local IPv6 address.\r |
| 1034 | @param[in] LocalPort The local port.\r |
| 1035 | @param[in] RemoteIp The remote IPv6 address.\r |
| 1036 | @param[in] RemotePort The remote port.\r |
| 1037 | @param[in] Protocol The protocol type in the IP header.\r |
| 1038 | \r |
| 1039 | **/\r |
| 1040 | VOID\r |
| 1041 | EFIAPI\r |
| 1042 | NetLibCreateIPv6DPathNode (\r |
| 1043 | IN OUT IPv6_DEVICE_PATH *Node,\r |
| 1044 | IN EFI_HANDLE Controller,\r |
| 1045 | IN EFI_IPv6_ADDRESS *LocalIp,\r |
| 1046 | IN UINT16 LocalPort,\r |
| 1047 | IN EFI_IPv6_ADDRESS *RemoteIp,\r |
| 1048 | IN UINT16 RemotePort,\r |
| 1049 | IN UINT16 Protocol\r |
| 1050 | );\r |
| 1051 | \r |
| 1052 | \r |
| 97b38d4e |
1053 | /**\r |
| 1054 | Find the UNDI/SNP handle from controller and protocol GUID.\r |
| 1204fe83 |
1055 | \r |
| e9b67286 |
1056 | For example, IP will open an MNP child to transmit/receive\r |
| 1057 | packets. When MNP is stopped, IP should also be stopped. IP\r |
| 97b38d4e |
1058 | needs to find its own private data which is related the IP's\r |
| 1059 | service binding instance that is install on UNDI/SNP handle.\r |
| 1060 | Now, the controller is either a MNP or ARP child handle. But\r |
| 1061 | IP opens these handle BY_DRIVER, use that info, we can get the\r |
| 1062 | UNDI/SNP handle.\r |
| 1063 | \r |
| ae213b7d |
1064 | @param[in] Controller Then protocol handle to check.\r |
| 1065 | @param[in] ProtocolGuid The protocol that is related with the handle.\r |
| 97b38d4e |
1066 | \r |
| ae213b7d |
1067 | @return The UNDI/SNP handle or NULL for errors.\r |
| 97b38d4e |
1068 | \r |
| 1069 | **/\r |
| 1070 | EFI_HANDLE\r |
| 1071 | EFIAPI\r |
| 1072 | NetLibGetNicHandle (\r |
| 1073 | IN EFI_HANDLE Controller,\r |
| 1074 | IN EFI_GUID *ProtocolGuid\r |
| 1075 | );\r |
| 1076 | \r |
| 97b38d4e |
1077 | /**\r |
| 1078 | This is the default unload handle for all the network drivers.\r |
| 1079 | \r |
| 3a1ab4bc |
1080 | Disconnect the driver specified by ImageHandle from all the devices in the handle database.\r |
| 1081 | Uninstall all the protocols installed in the driver entry point.\r |
| 1204fe83 |
1082 | \r |
| ae213b7d |
1083 | @param[in] ImageHandle The drivers' driver image.\r |
| 97b38d4e |
1084 | \r |
| 1085 | @retval EFI_SUCCESS The image is unloaded.\r |
| 1086 | @retval Others Failed to unload the image.\r |
| 1087 | \r |
| 1088 | **/\r |
| 1089 | EFI_STATUS\r |
| 1090 | EFIAPI\r |
| 1091 | NetLibDefaultUnload (\r |
| 1092 | IN EFI_HANDLE ImageHandle\r |
| 1093 | );\r |
| 1094 | \r |
| b45b45b2 |
1095 | \r |
| 1096 | //\r |
| 1097 | //Various signatures\r |
| 1098 | //\r |
| 1099 | #define NET_BUF_SIGNATURE SIGNATURE_32 ('n', 'b', 'u', 'f')\r |
| 1100 | #define NET_VECTOR_SIGNATURE SIGNATURE_32 ('n', 'v', 'e', 'c')\r |
| 1101 | #define NET_QUE_SIGNATURE SIGNATURE_32 ('n', 'b', 'q', 'u')\r |
| 97b38d4e |
1102 | \r |
| 1103 | \r |
| b45b45b2 |
1104 | #define NET_PROTO_DATA 64 // Opaque buffer for protocols\r |
| 1105 | #define NET_BUF_HEAD 1 // Trim or allocate space from head\r |
| 1106 | #define NET_BUF_TAIL 0 // Trim or allocate space from tail\r |
| 1107 | #define NET_VECTOR_OWN_FIRST 0x01 // We allocated the 1st block in the vector\r |
| 97b38d4e |
1108 | \r |
| 1109 | #define NET_CHECK_SIGNATURE(PData, SIGNATURE) \\r |
| 1110 | ASSERT (((PData) != NULL) && ((PData)->Signature == (SIGNATURE)))\r |
| 1111 | \r |
| 97b38d4e |
1112 | //\r |
| 1113 | // Single memory block in the vector.\r |
| 1114 | //\r |
| 1115 | typedef struct {\r |
| 1116 | UINT32 Len; // The block's length\r |
| 1117 | UINT8 *Bulk; // The block's Data\r |
| 1118 | } NET_BLOCK;\r |
| 1119 | \r |
| 1120 | typedef VOID (*NET_VECTOR_EXT_FREE) (VOID *Arg);\r |
| 1121 | \r |
| 1122 | //\r |
| 1123 | //NET_VECTOR contains several blocks to hold all packet's\r |
| 1124 | //fragments and other house-keeping stuff for sharing. It\r |
| 1125 | //doesn't specify the where actual packet fragment begins.\r |
| 1126 | //\r |
| 1127 | typedef struct {\r |
| 1128 | UINT32 Signature;\r |
| 1129 | INTN RefCnt; // Reference count to share NET_VECTOR.\r |
| 1130 | NET_VECTOR_EXT_FREE Free; // external function to free NET_VECTOR\r |
| 1131 | VOID *Arg; // opeque argument to Free\r |
| 1132 | UINT32 Flag; // Flags, NET_VECTOR_OWN_FIRST\r |
| 1133 | UINT32 Len; // Total length of the assocated BLOCKs\r |
| 1134 | \r |
| 1135 | UINT32 BlockNum;\r |
| 1136 | NET_BLOCK Block[1];\r |
| 1137 | } NET_VECTOR;\r |
| 1138 | \r |
| 1139 | //\r |
| e9b67286 |
1140 | //NET_BLOCK_OP operates on the NET_BLOCK. It specifies\r |
| 1141 | //where the actual fragment begins and ends\r |
| 97b38d4e |
1142 | //\r |
| 1143 | typedef struct {\r |
| 1144 | UINT8 *BlockHead; // Block's head, or the smallest valid Head\r |
| 1145 | UINT8 *BlockTail; // Block's tail. BlockTail-BlockHead=block length\r |
| 1146 | UINT8 *Head; // 1st byte of the data in the block\r |
| 1147 | UINT8 *Tail; // Tail of the data in the block, Tail-Head=Size\r |
| 1148 | UINT32 Size; // The size of the data\r |
| 1149 | } NET_BLOCK_OP;\r |
| 1150 | \r |
| f6b7393c |
1151 | typedef union {\r |
| 1152 | IP4_HEAD *Ip4;\r |
| 1153 | EFI_IP6_HEADER *Ip6;\r |
| 1154 | } NET_IP_HEAD;\r |
| 97b38d4e |
1155 | \r |
| 1156 | //\r |
| 1157 | //NET_BUF is the buffer manage structure used by the\r |
| e9b67286 |
1158 | //network stack. Every network packet may be fragmented. The Vector points to\r |
| 1159 | //memory blocks used by each fragment, and BlockOp\r |
| 97b38d4e |
1160 | //specifies where each fragment begins and ends.\r |
| 1161 | //\r |
| e9b67286 |
1162 | //It also contains an opaque area for the protocol to store\r |
| 1163 | //per-packet information. Protocol must be careful not\r |
| 97b38d4e |
1164 | //to overwrite the members after that.\r |
| 1165 | //\r |
| 1166 | typedef struct {\r |
| f6b7393c |
1167 | UINT32 Signature;\r |
| 1168 | INTN RefCnt;\r |
| 1169 | LIST_ENTRY List; // The List this NET_BUF is on\r |
| 97b38d4e |
1170 | \r |
| f6b7393c |
1171 | NET_IP_HEAD Ip; // Network layer header, for fast access\r |
| 1172 | TCP_HEAD *Tcp; // Transport layer header, for fast access\r |
| 1173 | EFI_UDP_HEADER *Udp; // User Datagram Protocol header\r |
| 1174 | UINT8 ProtoData [NET_PROTO_DATA]; //Protocol specific data\r |
| 97b38d4e |
1175 | \r |
| f6b7393c |
1176 | NET_VECTOR *Vector; // The vector containing the packet\r |
| 97b38d4e |
1177 | \r |
| f6b7393c |
1178 | UINT32 BlockOpNum; // Total number of BlockOp in the buffer\r |
| 1179 | UINT32 TotalSize; // Total size of the actual packet\r |
| 1180 | NET_BLOCK_OP BlockOp[1]; // Specify the position of actual packet\r |
| 97b38d4e |
1181 | } NET_BUF;\r |
| 1182 | \r |
| 97b38d4e |
1183 | //\r |
| e9b67286 |
1184 | //A queue of NET_BUFs. It is a thin extension of\r |
| 97b38d4e |
1185 | //NET_BUF functions.\r |
| 1186 | //\r |
| 1187 | typedef struct {\r |
| 1188 | UINT32 Signature;\r |
| 1189 | INTN RefCnt;\r |
| 1190 | LIST_ENTRY List; // The List this buffer queue is on\r |
| 1191 | \r |
| 1192 | LIST_ENTRY BufList; // list of queued buffers\r |
| 1193 | UINT32 BufSize; // total length of DATA in the buffers\r |
| 1194 | UINT32 BufNum; // total number of buffers on the chain\r |
| 1195 | } NET_BUF_QUEUE;\r |
| 1196 | \r |
| 1197 | //\r |
| 1198 | // Pseudo header for TCP and UDP checksum\r |
| 1199 | //\r |
| 1200 | #pragma pack(1)\r |
| 1201 | typedef struct {\r |
| 1202 | IP4_ADDR SrcIp;\r |
| 1203 | IP4_ADDR DstIp;\r |
| 1204 | UINT8 Reserved;\r |
| 1205 | UINT8 Protocol;\r |
| 1206 | UINT16 Len;\r |
| 1207 | } NET_PSEUDO_HDR;\r |
| f6b7393c |
1208 | \r |
| 1209 | typedef struct {\r |
| 1210 | EFI_IPv6_ADDRESS SrcIp;\r |
| 1211 | EFI_IPv6_ADDRESS DstIp;\r |
| 1212 | UINT32 Len;\r |
| 1213 | UINT32 Reserved:24;\r |
| 1214 | UINT32 NextHeader:8;\r |
| 1215 | } NET_IP6_PSEUDO_HDR;\r |
| 97b38d4e |
1216 | #pragma pack()\r |
| 1217 | \r |
| 1218 | //\r |
| 1219 | // The fragment entry table used in network interfaces. This is\r |
| 1220 | // the same as NET_BLOCK now. Use two different to distinguish\r |
| 1221 | // the two in case that NET_BLOCK be enhanced later.\r |
| 1222 | //\r |
| 1223 | typedef struct {\r |
| 1224 | UINT32 Len;\r |
| 1225 | UINT8 *Bulk;\r |
| 1226 | } NET_FRAGMENT;\r |
| 1227 | \r |
| 1228 | #define NET_GET_REF(PData) ((PData)->RefCnt++)\r |
| 1229 | #define NET_PUT_REF(PData) ((PData)->RefCnt--)\r |
| 50d7ebad |
1230 | #define NETBUF_FROM_PROTODATA(Info) BASE_CR((Info), NET_BUF, ProtoData)\r |
| 97b38d4e |
1231 | \r |
| 1232 | #define NET_BUF_SHARED(Buf) \\r |
| 1233 | (((Buf)->RefCnt > 1) || ((Buf)->Vector->RefCnt > 1))\r |
| 1234 | \r |
| 1235 | #define NET_VECTOR_SIZE(BlockNum) \\r |
| 1236 | (sizeof (NET_VECTOR) + ((BlockNum) - 1) * sizeof (NET_BLOCK))\r |
| 1237 | \r |
| 1238 | #define NET_BUF_SIZE(BlockOpNum) \\r |
| 1239 | (sizeof (NET_BUF) + ((BlockOpNum) - 1) * sizeof (NET_BLOCK_OP))\r |
| 1240 | \r |
| 1241 | #define NET_HEADSPACE(BlockOp) \\r |
| 1242 | (UINTN)((BlockOp)->Head - (BlockOp)->BlockHead)\r |
| 1243 | \r |
| 1244 | #define NET_TAILSPACE(BlockOp) \\r |
| 1245 | (UINTN)((BlockOp)->BlockTail - (BlockOp)->Tail)\r |
| 1246 | \r |
| 1247 | /**\r |
| 1248 | Allocate a single block NET_BUF. Upon allocation, all the\r |
| 1249 | free space is in the tail room.\r |
| 1250 | \r |
| ae213b7d |
1251 | @param[in] Len The length of the block.\r |
| 97b38d4e |
1252 | \r |
| 1204fe83 |
1253 | @return Pointer to the allocated NET_BUF, or NULL if the\r |
| 7557df4d |
1254 | allocation failed due to resource limit.\r |
| 97b38d4e |
1255 | \r |
| 1256 | **/\r |
| 1257 | NET_BUF *\r |
| 1258 | EFIAPI\r |
| 1259 | NetbufAlloc (\r |
| 1260 | IN UINT32 Len\r |
| 1261 | );\r |
| 1262 | \r |
| 1263 | /**\r |
| 7557df4d |
1264 | Free the net buffer and its associated NET_VECTOR.\r |
| 1204fe83 |
1265 | \r |
| 7557df4d |
1266 | Decrease the reference count of the net buffer by one. Free the associated net\r |
| 1204fe83 |
1267 | vector and itself if the reference count of the net buffer is decreased to 0.\r |
| 1268 | The net vector free operation decreases the reference count of the net\r |
| e9b67286 |
1269 | vector by one, and performs the resource free operation when the reference count\r |
| 1204fe83 |
1270 | of the net vector is 0.\r |
| 1271 | \r |
| ae213b7d |
1272 | @param[in] Nbuf Pointer to the NET_BUF to be freed.\r |
| 97b38d4e |
1273 | \r |
| 1274 | **/\r |
| 1275 | VOID\r |
| 1276 | EFIAPI\r |
| 1277 | NetbufFree (\r |
| 1278 | IN NET_BUF *Nbuf\r |
| 1279 | );\r |
| 1280 | \r |
| 1281 | /**\r |
| 1204fe83 |
1282 | Get the index of NET_BLOCK_OP that contains the byte at Offset in the net\r |
| 1283 | buffer.\r |
| 1284 | \r |
| 1285 | For example, this function can be used to retrieve the IP header in the packet. It\r |
| 1286 | also can be used to get the fragment that contains the byte used\r |
| 1287 | mainly by the library implementation itself.\r |
| 97b38d4e |
1288 | \r |
| 7557df4d |
1289 | @param[in] Nbuf Pointer to the net buffer.\r |
| 1290 | @param[in] Offset The offset of the byte.\r |
| 1204fe83 |
1291 | @param[out] Index Index of the NET_BLOCK_OP that contains the byte at\r |
| 7557df4d |
1292 | Offset.\r |
| 97b38d4e |
1293 | \r |
| 7557df4d |
1294 | @return Pointer to the Offset'th byte of data in the net buffer, or NULL\r |
| 1295 | if there is no such data in the net buffer.\r |
| 97b38d4e |
1296 | \r |
| 1297 | **/\r |
| 1298 | UINT8 *\r |
| 1299 | EFIAPI\r |
| 1300 | NetbufGetByte (\r |
| 1301 | IN NET_BUF *Nbuf,\r |
| 1302 | IN UINT32 Offset,\r |
| ae213b7d |
1303 | OUT UINT32 *Index OPTIONAL\r |
| 97b38d4e |
1304 | );\r |
| 1305 | \r |
| 1306 | /**\r |
| 1204fe83 |
1307 | Create a copy of the net buffer that shares the associated net vector.\r |
| 1308 | \r |
| 1309 | The reference count of the newly created net buffer is set to 1. The reference\r |
| 1310 | count of the associated net vector is increased by one.\r |
| 97b38d4e |
1311 | \r |
| ae213b7d |
1312 | @param[in] Nbuf Pointer to the net buffer to be cloned.\r |
| 97b38d4e |
1313 | \r |
| 7557df4d |
1314 | @return Pointer to the cloned net buffer, or NULL if the\r |
| ae213b7d |
1315 | allocation failed due to resource limit.\r |
| 97b38d4e |
1316 | \r |
| 1317 | **/\r |
| 7557df4d |
1318 | NET_BUF *\r |
| 97b38d4e |
1319 | EFIAPI\r |
| 1320 | NetbufClone (\r |
| 1321 | IN NET_BUF *Nbuf\r |
| 1322 | );\r |
| 1323 | \r |
| 1324 | /**\r |
| 7557df4d |
1325 | Create a duplicated copy of the net buffer with data copied and HeadSpace\r |
| 1326 | bytes of head space reserved.\r |
| 1204fe83 |
1327 | \r |
| 7557df4d |
1328 | The duplicated net buffer will allocate its own memory to hold the data of the\r |
| 1329 | source net buffer.\r |
| 1204fe83 |
1330 | \r |
| 7557df4d |
1331 | @param[in] Nbuf Pointer to the net buffer to be duplicated from.\r |
| 1204fe83 |
1332 | @param[in, out] Duplicate Pointer to the net buffer to duplicate to, if\r |
| 7557df4d |
1333 | NULL a new net buffer is allocated.\r |
| 1334 | @param[in] HeadSpace Length of the head space to reserve.\r |
| 1335 | \r |
| 1336 | @return Pointer to the duplicated net buffer, or NULL if\r |
| 1337 | the allocation failed due to resource limit.\r |
| 97b38d4e |
1338 | \r |
| 1339 | **/\r |
| 1340 | NET_BUF *\r |
| 1341 | EFIAPI\r |
| 1342 | NetbufDuplicate (\r |
| 1343 | IN NET_BUF *Nbuf,\r |
| ae213b7d |
1344 | IN OUT NET_BUF *Duplicate OPTIONAL,\r |
| 97b38d4e |
1345 | IN UINT32 HeadSpace\r |
| 1346 | );\r |
| 1347 | \r |
| 1348 | /**\r |
| 1204fe83 |
1349 | Create a NET_BUF structure which contains Len byte data of Nbuf starting from\r |
| 1350 | Offset.\r |
| 1351 | \r |
| 1352 | A new NET_BUF structure will be created but the associated data in NET_VECTOR\r |
| 1353 | is shared. This function exists to do IP packet fragmentation.\r |
| 7557df4d |
1354 | \r |
| 1355 | @param[in] Nbuf Pointer to the net buffer to be extracted.\r |
| 1204fe83 |
1356 | @param[in] Offset Starting point of the data to be included in the new\r |
| 7557df4d |
1357 | net buffer.\r |
| 1204fe83 |
1358 | @param[in] Len Bytes of data to be included in the new net buffer.\r |
| 1359 | @param[in] HeadSpace Bytes of head space to reserve for protocol header.\r |
| 7557df4d |
1360 | \r |
| 1204fe83 |
1361 | @return Pointer to the cloned net buffer, or NULL if the\r |
| 7557df4d |
1362 | allocation failed due to resource limit.\r |
| 97b38d4e |
1363 | \r |
| 1364 | **/\r |
| 1365 | NET_BUF *\r |
| 1366 | EFIAPI\r |
| 1367 | NetbufGetFragment (\r |
| 1368 | IN NET_BUF *Nbuf,\r |
| 1369 | IN UINT32 Offset,\r |
| 1370 | IN UINT32 Len,\r |
| 1371 | IN UINT32 HeadSpace\r |
| 1372 | );\r |
| 1373 | \r |
| 1374 | /**\r |
| 7557df4d |
1375 | Reserve some space in the header room of the net buffer.\r |
| 1376 | \r |
| 1204fe83 |
1377 | Upon allocation, all the space is in the tail room of the buffer. Call this\r |
| 7557df4d |
1378 | function to move some space to the header room. This function is quite limited\r |
| 1204fe83 |
1379 | in that it can only reserve space from the first block of an empty NET_BUF not\r |
| 1380 | built from the external. But it should be enough for the network stack.\r |
| 97b38d4e |
1381 | \r |
| 7557df4d |
1382 | @param[in, out] Nbuf Pointer to the net buffer.\r |
| 1383 | @param[in] Len The length of buffer to be reserved from the header.\r |
| 97b38d4e |
1384 | \r |
| 1385 | **/\r |
| 1386 | VOID\r |
| 1387 | EFIAPI\r |
| 1388 | NetbufReserve (\r |
| ae213b7d |
1389 | IN OUT NET_BUF *Nbuf,\r |
| 97b38d4e |
1390 | IN UINT32 Len\r |
| 1391 | );\r |
| 1392 | \r |
| 1393 | /**\r |
| 1204fe83 |
1394 | Allocate Len bytes of space from the header or tail of the buffer.\r |
| 97b38d4e |
1395 | \r |
| 7557df4d |
1396 | @param[in, out] Nbuf Pointer to the net buffer.\r |
| 1397 | @param[in] Len The length of the buffer to be allocated.\r |
| 1204fe83 |
1398 | @param[in] FromHead The flag to indicate whether reserve the data\r |
| 7557df4d |
1399 | from head (TRUE) or tail (FALSE).\r |
| 97b38d4e |
1400 | \r |
| 1204fe83 |
1401 | @return Pointer to the first byte of the allocated buffer,\r |
| 7557df4d |
1402 | or NULL if there is no sufficient space.\r |
| 97b38d4e |
1403 | \r |
| 1404 | **/\r |
| 7557df4d |
1405 | UINT8*\r |
| 97b38d4e |
1406 | EFIAPI\r |
| 1407 | NetbufAllocSpace (\r |
| ae213b7d |
1408 | IN OUT NET_BUF *Nbuf,\r |
| 97b38d4e |
1409 | IN UINT32 Len,\r |
| 1410 | IN BOOLEAN FromHead\r |
| 1411 | );\r |
| 1412 | \r |
| 1413 | /**\r |
| 1204fe83 |
1414 | Trim Len bytes from the header or tail of the net buffer.\r |
| 97b38d4e |
1415 | \r |
| 7557df4d |
1416 | @param[in, out] Nbuf Pointer to the net buffer.\r |
| 1417 | @param[in] Len The length of the data to be trimmed.\r |
| 1204fe83 |
1418 | @param[in] FromHead The flag to indicate whether trim data from head\r |
| 7557df4d |
1419 | (TRUE) or tail (FALSE).\r |
| 97b38d4e |
1420 | \r |
| 1204fe83 |
1421 | @return Length of the actually trimmed data, which may be less\r |
| e9b67286 |
1422 | than Len if the TotalSize of Nbuf is less than Len.\r |
| 97b38d4e |
1423 | \r |
| 1424 | **/\r |
| 1425 | UINT32\r |
| 1426 | EFIAPI\r |
| 1427 | NetbufTrim (\r |
| ae213b7d |
1428 | IN OUT NET_BUF *Nbuf,\r |
| 97b38d4e |
1429 | IN UINT32 Len,\r |
| 1430 | IN BOOLEAN FromHead\r |
| 1431 | );\r |
| 1432 | \r |
| 1433 | /**\r |
| 1204fe83 |
1434 | Copy Len bytes of data from the specific offset of the net buffer to the\r |
| 7557df4d |
1435 | destination memory.\r |
| 1204fe83 |
1436 | \r |
| e9b67286 |
1437 | The Len bytes of data may cross several fragments of the net buffer.\r |
| 1204fe83 |
1438 | \r |
| 7557df4d |
1439 | @param[in] Nbuf Pointer to the net buffer.\r |
| 1440 | @param[in] Offset The sequence number of the first byte to copy.\r |
| 1441 | @param[in] Len Length of the data to copy.\r |
| 1442 | @param[in] Dest The destination of the data to copy to.\r |
| 1443 | \r |
| 1444 | @return The length of the actual copied data, or 0 if the offset\r |
| 361468ed |
1445 | specified exceeds the total size of net buffer.\r |
| 97b38d4e |
1446 | \r |
| 1447 | **/\r |
| 1448 | UINT32\r |
| 1449 | EFIAPI\r |
| 1450 | NetbufCopy (\r |
| 1451 | IN NET_BUF *Nbuf,\r |
| 1452 | IN UINT32 Offset,\r |
| 1453 | IN UINT32 Len,\r |
| 1454 | IN UINT8 *Dest\r |
| 1455 | );\r |
| 1456 | \r |
| 1457 | /**\r |
| 1204fe83 |
1458 | Build a NET_BUF from external blocks.\r |
| 1459 | \r |
| e9b67286 |
1460 | A new NET_BUF structure will be created from external blocks. An additional block\r |
| 7557df4d |
1461 | of memory will be allocated to hold reserved HeadSpace bytes of header room\r |
| e9b67286 |
1462 | and existing HeadLen bytes of header, but the external blocks are shared by the\r |
| 7557df4d |
1463 | net buffer to avoid data copying.\r |
| 97b38d4e |
1464 | \r |
| ae213b7d |
1465 | @param[in] ExtFragment Pointer to the data block.\r |
| 7557df4d |
1466 | @param[in] ExtNum The number of the data blocks.\r |
| ae213b7d |
1467 | @param[in] HeadSpace The head space to be reserved.\r |
| e9b67286 |
1468 | @param[in] HeadLen The length of the protocol header. The function\r |
| 1469 | pulls this amount of data into a linear block.\r |
| 1470 | @param[in] ExtFree Pointer to the caller-provided free function.\r |
| ae213b7d |
1471 | @param[in] Arg The argument passed to ExtFree when ExtFree is\r |
| 1472 | called.\r |
| 97b38d4e |
1473 | \r |
| 1204fe83 |
1474 | @return Pointer to the net buffer built from the data blocks,\r |
| 7557df4d |
1475 | or NULL if the allocation failed due to resource\r |
| 1476 | limit.\r |
| 97b38d4e |
1477 | \r |
| 1478 | **/\r |
| 1479 | NET_BUF *\r |
| 1480 | EFIAPI\r |
| 1481 | NetbufFromExt (\r |
| 1482 | IN NET_FRAGMENT *ExtFragment,\r |
| 1483 | IN UINT32 ExtNum,\r |
| 1484 | IN UINT32 HeadSpace,\r |
| 1485 | IN UINT32 HeadLen,\r |
| 1486 | IN NET_VECTOR_EXT_FREE ExtFree,\r |
| 1487 | IN VOID *Arg OPTIONAL\r |
| 1488 | );\r |
| 1489 | \r |
| 1490 | /**\r |
| 7557df4d |
1491 | Build a fragment table to contain the fragments in the net buffer. This is the\r |
| 1204fe83 |
1492 | opposite operation of the NetbufFromExt.\r |
| 1493 | \r |
| ae213b7d |
1494 | @param[in] Nbuf Point to the net buffer.\r |
| 1495 | @param[in, out] ExtFragment Pointer to the data block.\r |
| 7557df4d |
1496 | @param[in, out] ExtNum The number of the data blocks.\r |
| 97b38d4e |
1497 | \r |
| 1204fe83 |
1498 | @retval EFI_BUFFER_TOO_SMALL The number of non-empty blocks is bigger than\r |
| 7557df4d |
1499 | ExtNum.\r |
| 1500 | @retval EFI_SUCCESS Fragment table is built successfully.\r |
| 97b38d4e |
1501 | \r |
| 1502 | **/\r |
| 1503 | EFI_STATUS\r |
| 1504 | EFIAPI\r |
| 1505 | NetbufBuildExt (\r |
| 1506 | IN NET_BUF *Nbuf,\r |
| ae213b7d |
1507 | IN OUT NET_FRAGMENT *ExtFragment,\r |
| 1508 | IN OUT UINT32 *ExtNum\r |
| 97b38d4e |
1509 | );\r |
| 1510 | \r |
| 1511 | /**\r |
| 7557df4d |
1512 | Build a net buffer from a list of net buffers.\r |
| 1204fe83 |
1513 | \r |
| 1514 | All the fragments will be collected from the list of NEW_BUF and then a new\r |
| 1515 | net buffer will be created through NetbufFromExt.\r |
| 1516 | \r |
| 7557df4d |
1517 | @param[in] BufList A List of the net buffer.\r |
| 1518 | @param[in] HeadSpace The head space to be reserved.\r |
| e9b67286 |
1519 | @param[in] HeaderLen The length of the protocol header. The function\r |
| 1520 | pulls this amount of data into a linear block.\r |
| 7557df4d |
1521 | @param[in] ExtFree Pointer to the caller provided free function.\r |
| 1522 | @param[in] Arg The argument passed to ExtFree when ExtFree is called.\r |
| 1523 | \r |
| 1204fe83 |
1524 | @return Pointer to the net buffer built from the list of net\r |
| 7557df4d |
1525 | buffers.\r |
| 97b38d4e |
1526 | \r |
| 1527 | **/\r |
| 1528 | NET_BUF *\r |
| 1529 | EFIAPI\r |
| 1530 | NetbufFromBufList (\r |
| 1531 | IN LIST_ENTRY *BufList,\r |
| 1532 | IN UINT32 HeadSpace,\r |
| 1533 | IN UINT32 HeaderLen,\r |
| 1534 | IN NET_VECTOR_EXT_FREE ExtFree,\r |
| ae213b7d |
1535 | IN VOID *Arg OPTIONAL\r |
| 97b38d4e |
1536 | );\r |
| 1537 | \r |
| 1538 | /**\r |
| 1539 | Free a list of net buffers.\r |
| 1540 | \r |
| ae213b7d |
1541 | @param[in, out] Head Pointer to the head of linked net buffers.\r |
| 97b38d4e |
1542 | \r |
| 1543 | **/\r |
| 1544 | VOID\r |
| 1545 | EFIAPI\r |
| 1546 | NetbufFreeList (\r |
| ae213b7d |
1547 | IN OUT LIST_ENTRY *Head\r |
| 97b38d4e |
1548 | );\r |
| 1549 | \r |
| 1550 | /**\r |
| 1551 | Initiate the net buffer queue.\r |
| 1552 | \r |
| 7557df4d |
1553 | @param[in, out] NbufQue Pointer to the net buffer queue to be initialized.\r |
| 97b38d4e |
1554 | \r |
| 1555 | **/\r |
| 1556 | VOID\r |
| 1557 | EFIAPI\r |
| 1558 | NetbufQueInit (\r |
| ae213b7d |
1559 | IN OUT NET_BUF_QUEUE *NbufQue\r |
| 97b38d4e |
1560 | );\r |
| 1561 | \r |
| 1562 | /**\r |
| 7557df4d |
1563 | Allocate and initialize a net buffer queue.\r |
| 97b38d4e |
1564 | \r |
| 7557df4d |
1565 | @return Pointer to the allocated net buffer queue, or NULL if the\r |
| 1566 | allocation failed due to resource limit.\r |
| 97b38d4e |
1567 | \r |
| 1568 | **/\r |
| 1569 | NET_BUF_QUEUE *\r |
| 1570 | EFIAPI\r |
| 1571 | NetbufQueAlloc (\r |
| 1572 | VOID\r |
| 1573 | );\r |
| 1574 | \r |
| 1575 | /**\r |
| 1204fe83 |
1576 | Free a net buffer queue.\r |
| 1577 | \r |
| 7557df4d |
1578 | Decrease the reference count of the net buffer queue by one. The real resource\r |
| 1204fe83 |
1579 | free operation isn't performed until the reference count of the net buffer\r |
| 7557df4d |
1580 | queue is decreased to 0.\r |
| 97b38d4e |
1581 | \r |
| 7557df4d |
1582 | @param[in] NbufQue Pointer to the net buffer queue to be freed.\r |
| 97b38d4e |
1583 | \r |
| 1584 | **/\r |
| 1585 | VOID\r |
| 1586 | EFIAPI\r |
| 1587 | NetbufQueFree (\r |
| 1588 | IN NET_BUF_QUEUE *NbufQue\r |
| 1589 | );\r |
| 1590 | \r |
| 1591 | /**\r |
| 7557df4d |
1592 | Remove a net buffer from the head in the specific queue and return it.\r |
| 97b38d4e |
1593 | \r |
| ae213b7d |
1594 | @param[in, out] NbufQue Pointer to the net buffer queue.\r |
| 97b38d4e |
1595 | \r |
| 1204fe83 |
1596 | @return Pointer to the net buffer removed from the specific queue,\r |
| 7557df4d |
1597 | or NULL if there is no net buffer in the specific queue.\r |
| 97b38d4e |
1598 | \r |
| 1599 | **/\r |
| 1600 | NET_BUF *\r |
| 1601 | EFIAPI\r |
| 1602 | NetbufQueRemove (\r |
| ae213b7d |
1603 | IN OUT NET_BUF_QUEUE *NbufQue\r |
| 97b38d4e |
1604 | );\r |
| 1605 | \r |
| 1606 | /**\r |
| 7557df4d |
1607 | Append a net buffer to the net buffer queue.\r |
| 97b38d4e |
1608 | \r |
| 7557df4d |
1609 | @param[in, out] NbufQue Pointer to the net buffer queue.\r |
| 1610 | @param[in, out] Nbuf Pointer to the net buffer to be appended.\r |
| 97b38d4e |
1611 | \r |
| 1612 | **/\r |
| 1613 | VOID\r |
| 1614 | EFIAPI\r |
| 1615 | NetbufQueAppend (\r |
| ae213b7d |
1616 | IN OUT NET_BUF_QUEUE *NbufQue,\r |
| 1617 | IN OUT NET_BUF *Nbuf\r |
| 97b38d4e |
1618 | );\r |
| 1619 | \r |
| 1620 | /**\r |
| 7557df4d |
1621 | Copy Len bytes of data from the net buffer queue at the specific offset to the\r |
| 1622 | destination memory.\r |
| 1204fe83 |
1623 | \r |
| 7557df4d |
1624 | The copying operation is the same as NetbufCopy but applies to the net buffer\r |
| 1625 | queue instead of the net buffer.\r |
| 1204fe83 |
1626 | \r |
| 7557df4d |
1627 | @param[in] NbufQue Pointer to the net buffer queue.\r |
| 1628 | @param[in] Offset The sequence number of the first byte to copy.\r |
| 1629 | @param[in] Len Length of the data to copy.\r |
| 1630 | @param[out] Dest The destination of the data to copy to.\r |
| 1631 | \r |
| 1204fe83 |
1632 | @return The length of the actual copied data, or 0 if the offset\r |
| 7557df4d |
1633 | specified exceeds the total size of net buffer queue.\r |
| 97b38d4e |
1634 | \r |
| 1635 | **/\r |
| 1636 | UINT32\r |
| 1637 | EFIAPI\r |
| 1638 | NetbufQueCopy (\r |
| 1639 | IN NET_BUF_QUEUE *NbufQue,\r |
| 1640 | IN UINT32 Offset,\r |
| 1641 | IN UINT32 Len,\r |
| ae213b7d |
1642 | OUT UINT8 *Dest\r |
| 97b38d4e |
1643 | );\r |
| 1644 | \r |
| 1645 | /**\r |
| 1204fe83 |
1646 | Trim Len bytes of data from the queue header and release any net buffer\r |
| e9b67286 |
1647 | that is trimmed wholely.\r |
| 1204fe83 |
1648 | \r |
| 7557df4d |
1649 | The trimming operation is the same as NetbufTrim but applies to the net buffer\r |
| 1650 | queue instead of the net buffer.\r |
| 97b38d4e |
1651 | \r |
| ae213b7d |
1652 | @param[in, out] NbufQue Pointer to the net buffer queue.\r |
| 1653 | @param[in] Len Length of the data to trim.\r |
| 97b38d4e |
1654 | \r |
| 7557df4d |
1655 | @return The actual length of the data trimmed.\r |
| 97b38d4e |
1656 | \r |
| 1657 | **/\r |
| 1658 | UINT32\r |
| 1659 | EFIAPI\r |
| 1660 | NetbufQueTrim (\r |
| ae213b7d |
1661 | IN OUT NET_BUF_QUEUE *NbufQue,\r |
| 97b38d4e |
1662 | IN UINT32 Len\r |
| 1663 | );\r |
| 1664 | \r |
| 1665 | \r |
| 1666 | /**\r |
| 1667 | Flush the net buffer queue.\r |
| 1668 | \r |
| ae213b7d |
1669 | @param[in, out] NbufQue Pointer to the queue to be flushed.\r |
| 97b38d4e |
1670 | \r |
| 1671 | **/\r |
| 1672 | VOID\r |
| 1673 | EFIAPI\r |
| 1674 | NetbufQueFlush (\r |
| ae213b7d |
1675 | IN OUT NET_BUF_QUEUE *NbufQue\r |
| 97b38d4e |
1676 | );\r |
| 1677 | \r |
| 1678 | /**\r |
| 7557df4d |
1679 | Compute the checksum for a bulk of data.\r |
| 97b38d4e |
1680 | \r |
| ae213b7d |
1681 | @param[in] Bulk Pointer to the data.\r |
| 1682 | @param[in] Len Length of the data, in bytes.\r |
| 97b38d4e |
1683 | \r |
| ae213b7d |
1684 | @return The computed checksum.\r |
| 97b38d4e |
1685 | \r |
| 1686 | **/\r |
| 1687 | UINT16\r |
| 1688 | EFIAPI\r |
| 1689 | NetblockChecksum (\r |
| 1690 | IN UINT8 *Bulk,\r |
| 1691 | IN UINT32 Len\r |
| 1692 | );\r |
| 1693 | \r |
| 1694 | /**\r |
| 1695 | Add two checksums.\r |
| 1696 | \r |
| ae213b7d |
1697 | @param[in] Checksum1 The first checksum to be added.\r |
| 1698 | @param[in] Checksum2 The second checksum to be added.\r |
| 97b38d4e |
1699 | \r |
| ae213b7d |
1700 | @return The new checksum.\r |
| 97b38d4e |
1701 | \r |
| 1702 | **/\r |
| 1703 | UINT16\r |
| 1704 | EFIAPI\r |
| 1705 | NetAddChecksum (\r |
| 1706 | IN UINT16 Checksum1,\r |
| 1707 | IN UINT16 Checksum2\r |
| 1708 | );\r |
| 1709 | \r |
| 1710 | /**\r |
| 1711 | Compute the checksum for a NET_BUF.\r |
| 1712 | \r |
| ae213b7d |
1713 | @param[in] Nbuf Pointer to the net buffer.\r |
| 97b38d4e |
1714 | \r |
| ae213b7d |
1715 | @return The computed checksum.\r |
| 97b38d4e |
1716 | \r |
| 1717 | **/\r |
| 1718 | UINT16\r |
| 1719 | EFIAPI\r |
| 1720 | NetbufChecksum (\r |
| 1721 | IN NET_BUF *Nbuf\r |
| 1722 | );\r |
| 1723 | \r |
| 1724 | /**\r |
| 1204fe83 |
1725 | Compute the checksum for TCP/UDP pseudo header.\r |
| 1726 | \r |
| 7557df4d |
1727 | Src and Dst are in network byte order, and Len is in host byte order.\r |
| 97b38d4e |
1728 | \r |
| ae213b7d |
1729 | @param[in] Src The source address of the packet.\r |
| 1730 | @param[in] Dst The destination address of the packet.\r |
| 1731 | @param[in] Proto The protocol type of the packet.\r |
| 1732 | @param[in] Len The length of the packet.\r |
| 97b38d4e |
1733 | \r |
| ae213b7d |
1734 | @return The computed checksum.\r |
| 97b38d4e |
1735 | \r |
| 1736 | **/\r |
| 1737 | UINT16\r |
| 1738 | EFIAPI\r |
| 1739 | NetPseudoHeadChecksum (\r |
| 1740 | IN IP4_ADDR Src,\r |
| 1741 | IN IP4_ADDR Dst,\r |
| 1742 | IN UINT8 Proto,\r |
| 1743 | IN UINT16 Len\r |
| 1744 | );\r |
| 1745 | \r |
| f6b7393c |
1746 | /**\r |
| 1204fe83 |
1747 | Compute the checksum for TCP6/UDP6 pseudo header.\r |
| 1748 | \r |
| f6b7393c |
1749 | Src and Dst are in network byte order, and Len is in host byte order.\r |
| 1750 | \r |
| 1751 | @param[in] Src The source address of the packet.\r |
| 1752 | @param[in] Dst The destination address of the packet.\r |
| 1753 | @param[in] NextHeader The protocol type of the packet.\r |
| 1754 | @param[in] Len The length of the packet.\r |
| 1755 | \r |
| 1756 | @return The computed checksum.\r |
| 1757 | \r |
| 1758 | **/\r |
| 1759 | UINT16\r |
| 1760 | NetIp6PseudoHeadChecksum (\r |
| 1761 | IN EFI_IPv6_ADDRESS *Src,\r |
| 1762 | IN EFI_IPv6_ADDRESS *Dst,\r |
| 1763 | IN UINT8 NextHeader,\r |
| 1764 | IN UINT32 Len\r |
| 1765 | );\r |
| 97b38d4e |
1766 | #endif\r |
projects / mirror_edk2.git / blame