NetworkPkg/UefiPxeBcDxe/PxeBcDhcp4.h

   1 /** @file
   2   Functions declaration related with DHCPv4 for UefiPxeBc Driver.
   3
   4   Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
   5
   6   This program and the accompanying materials
   7   are licensed and made available under the terms and conditions of the BSD License
   8   which accompanies this distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php.
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #ifndef __EFI_PXEBC_DHCP4_H__
  17 #define __EFI_PXEBC_DHCP4_H__
  18
  19 #define PXEBC_DHCP4_OPTION_MAX_NUM         16
  20 #define PXEBC_DHCP4_OPTION_MAX_SIZE        312
  21 #define PXEBC_DHCP4_PACKET_MAX_SIZE        1472
  22 #define PXEBC_DHCP4_S_PORT                 67
  23 #define PXEBC_DHCP4_C_PORT                 68
  24 #define PXEBC_BS_DOWNLOAD_PORT             69
  25 #define PXEBC_BS_DISCOVER_PORT             4011
  26 #define PXEBC_DHCP4_OPCODE_REQUEST         1
  27 #define PXEBC_DHCP4_OPCODE_REPLY           2
  28 #define PXEBC_DHCP4_MSG_TYPE_REQUEST       3
  29 #define PXEBC_DHCP4_MAGIC                  0x63538263 // network byte order
  30
  31 //
  32 // Dhcp Options
  33 //
  34 #define PXEBC_DHCP4_TAG_PAD                0    // Pad Option
  35 #define PXEBC_DHCP4_TAG_EOP                255  // End Option
  36 #define PXEBC_DHCP4_TAG_NETMASK            1    // Subnet Mask
  37 #define PXEBC_DHCP4_TAG_TIME_OFFSET        2    // Time Offset from UTC
  38 #define PXEBC_DHCP4_TAG_ROUTER             3    // Router option,
  39 #define PXEBC_DHCP4_TAG_TIME_SERVER        4    // Time Server
  40 #define PXEBC_DHCP4_TAG_NAME_SERVER        5    // Name Server
  41 #define PXEBC_DHCP4_TAG_DNS_SERVER         6    // Domain Name Server
  42 #define PXEBC_DHCP4_TAG_HOSTNAME           12   // Host Name
  43 #define PXEBC_DHCP4_TAG_BOOTFILE_LEN       13   // Boot File Size
  44 #define PXEBC_DHCP4_TAG_DUMP               14   // Merit Dump File
  45 #define PXEBC_DHCP4_TAG_DOMAINNAME         15   // Domain Name
  46 #define PXEBC_DHCP4_TAG_ROOTPATH           17   // Root path
  47 #define PXEBC_DHCP4_TAG_EXTEND_PATH        18   // Extensions Path
  48 #define PXEBC_DHCP4_TAG_EMTU               22   // Maximum Datagram Reassembly Size
  49 #define PXEBC_DHCP4_TAG_TTL                23   // Default IP Time-to-live
  50 #define PXEBC_DHCP4_TAG_BROADCAST          28   // Broadcast Address
  51 #define PXEBC_DHCP4_TAG_NIS_DOMAIN         40   // Network Information Service Domain
  52 #define PXEBC_DHCP4_TAG_NIS_SERVER         41   // Network Information Servers
  53 #define PXEBC_DHCP4_TAG_NTP_SERVER         42   // Network Time Protocol Servers
  54 #define PXEBC_DHCP4_TAG_VENDOR             43   // Vendor Specific Information
  55 #define PXEBC_DHCP4_TAG_REQUEST_IP         50   // Requested IP Address
  56 #define PXEBC_DHCP4_TAG_LEASE              51   // IP Address Lease Time
  57 #define PXEBC_DHCP4_TAG_OVERLOAD           52   // Option Overload
  58 #define PXEBC_DHCP4_TAG_MSG_TYPE           53   // DHCP Message Type
  59 #define PXEBC_DHCP4_TAG_SERVER_ID          54   // Server Identifier
  60 #define PXEBC_DHCP4_TAG_PARA_LIST          55   // Parameter Request List
  61 #define PXEBC_DHCP4_TAG_MAXMSG             57   // Maximum DHCP Message Size
  62 #define PXEBC_DHCP4_TAG_T1                 58   // Renewal (T1) Time Value
  63 #define PXEBC_DHCP4_TAG_T2                 59   // Rebinding (T2) Time Value
  64 #define PXEBC_DHCP4_TAG_CLASS_ID           60   // Vendor class identifier
  65 #define PXEBC_DHCP4_TAG_CLIENT_ID          61   // Client-identifier
  66 #define PXEBC_DHCP4_TAG_TFTP               66   // TFTP server name
  67 #define PXEBC_DHCP4_TAG_BOOTFILE           67   // Bootfile name
  68 #define PXEBC_PXE_DHCP4_TAG_ARCH           93
  69 #define PXEBC_PXE_DHCP4_TAG_UNDI           94
  70 #define PXEBC_PXE_DHCP4_TAG_UUID           97
  71 //
  72 // Sub-Options in Dhcp Vendor Option
  73 //
  74 #define PXEBC_VENDOR_TAG_MTFTP_IP          1
  75 #define PXEBC_VENDOR_TAG_MTFTP_CPORT       2
  76 #define PXEBC_VENDOR_TAG_MTFTP_SPORT       3
  77 #define PXEBC_VENDOR_TAG_MTFTP_TIMEOUT     4
  78 #define PXEBC_VENDOR_TAG_MTFTP_DELAY       5
  79 #define PXEBC_VENDOR_TAG_DISCOVER_CTRL     6
  80 #define PXEBC_VENDOR_TAG_DISCOVER_MCAST    7
  81 #define PXEBC_VENDOR_TAG_BOOT_SERVERS      8
  82 #define PXEBC_VENDOR_TAG_BOOT_MENU         9
  83 #define PXEBC_VENDOR_TAG_MENU_PROMPT       10
  84 #define PXEBC_VENDOR_TAG_MCAST_ALLOC       11
  85 #define PXEBC_VENDOR_TAG_CREDENTIAL_TYPES  12
  86 #define PXEBC_VENDOR_TAG_BOOT_ITEM         71
  87
  88 #define PXEBC_BOOT_REQUEST_TIMEOUT         1
  89 #define PXEBC_BOOT_REQUEST_RETRIES         4
  90
  91 #define PXEBC_DHCP4_OVERLOAD_FILE          1
  92 #define PXEBC_DHCP4_OVERLOAD_SERVER_NAME   2
  93
  94
  95 //
  96 // The array index of the DHCP4 option tag interested
  97 //
  98 #define PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN 0
  99 #define PXEBC_DHCP4_TAG_INDEX_VENDOR       1
 100 #define PXEBC_DHCP4_TAG_INDEX_OVERLOAD     2
 101 #define PXEBC_DHCP4_TAG_INDEX_MSG_TYPE     3
 102 #define PXEBC_DHCP4_TAG_INDEX_SERVER_ID    4
 103 #define PXEBC_DHCP4_TAG_INDEX_CLASS_ID     5
 104 #define PXEBC_DHCP4_TAG_INDEX_BOOTFILE     6
 105 #define PXEBC_DHCP4_TAG_INDEX_MAX          7
 106
 107 //
 108 // Dhcp4 and Dhcp6 share this definition, and corresponding
 109 // relatioinship is as follows:
 110 //
 111 //   Dhcp4Discover <> Dhcp6Solicit
 112 //   Dhcp4Offer    <> Dhcp6Advertise
 113 //   Dhcp4Request  <> Dhcp6Request
 114 //   Dhcp4Ack      <> DHcp6Reply
 115 //
 116 typedef enum {
 117   PxeOfferTypeDhcpOnly,
 118   PxeOfferTypeDhcpPxe10,
 119   PxeOfferTypeDhcpWfm11a,
 120   PxeOfferTypeDhcpBinl,
 121   PxeOfferTypeProxyPxe10,
 122   PxeOfferTypeProxyWfm11a,
 123   PxeOfferTypeProxyBinl,
 124   PxeOfferTypeBootp,
 125   PxeOfferTypeMax
 126 } PXEBC_OFFER_TYPE;
 127
 128 #define BIT(x)                (1 << x)
 129 #define CTRL(x)               (0x1F & (x))
 130 #define DEFAULT_CLASS_ID_DATA "PXEClient:Arch:?????:????:??????"
 131 #define DEFAULT_UNDI_TYPE     1
 132 #define DEFAULT_UNDI_MAJOR    3
 133 #define DEFAULT_UNDI_MINOR    0
 134
 135 #define MTFTP_VENDOR_OPTION_BIT_MAP \
 136   (BIT (PXEBC_VENDOR_TAG_MTFTP_IP) | \
 137    BIT (PXEBC_VENDOR_TAG_MTFTP_CPORT) | \
 138    BIT (PXEBC_VENDOR_TAG_MTFTP_SPORT) | \
 139    BIT (PXEBC_VENDOR_TAG_MTFTP_TIMEOUT) | \
 140    BIT (PXEBC_VENDOR_TAG_MTFTP_DELAY))
 141
 142 #define DISCOVER_VENDOR_OPTION_BIT_MAP \
 143   (BIT (PXEBC_VENDOR_TAG_DISCOVER_CTRL) | \
 144    BIT (PXEBC_VENDOR_TAG_DISCOVER_MCAST) | \
 145    BIT (PXEBC_VENDOR_TAG_BOOT_SERVERS) | \
 146    BIT (PXEBC_VENDOR_TAG_BOOT_MENU) | \
 147    BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))
 148
 149 #define IS_VALID_BOOT_PROMPT(x) \
 150   ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_MENU_PROMPT)) \
 151    == BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))
 152
 153 #define IS_VALID_BOOT_MENU(x) \
 154   ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_BOOT_MENU)) \
 155    == BIT (PXEBC_VENDOR_TAG_BOOT_MENU))
 156
 157 #define IS_VALID_MTFTP_VENDOR_OPTION(x) \
 158   (((UINT32) ((x)[0]) & MTFTP_VENDOR_OPTION_BIT_MAP) \
 159    == MTFTP_VENDOR_OPTION_BIT_MAP)
 160
 161 #define IS_VALID_DISCOVER_VENDOR_OPTION(x) \
 162   (((UINT32) ((x)[0]) & DISCOVER_VENDOR_OPTION_BIT_MAP) != 0)
 163
 164 #define IS_VALID_CREDENTIAL_VENDOR_OPTION(x) \
 165   (((UINT32) ((x)[0]) & BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES)) \
 166    == BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES))
 167
 168 #define IS_VALID_BOOTITEM_VENDOR_OPTION(x) \
 169   (((UINT32) ((x)[PXEBC_VENDOR_TAG_BOOT_ITEM / 32]) & \
 170      BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32)) \
 171     == BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32))
 172
 173 #define SET_VENDOR_OPTION_BIT_MAP(x, y) \
 174   (*(x + ((y) / 32)) = (UINT32) ((UINT32) ((x)[(y) / 32]) | BIT ((y) % 32)))
 175
 176 #define GET_NEXT_DHCP_OPTION(Opt) \
 177   (EFI_DHCP4_PACKET_OPTION *) ((UINT8 *) (Opt) + \
 178    sizeof (EFI_DHCP4_PACKET_OPTION) + (Opt)->Length - 1)
 179
 180 #define GET_OPTION_BUFFER_LEN(Pkt) \
 181   ((Pkt)->Length - sizeof (EFI_DHCP4_HEADER) - 4)
 182
 183 #define GET_NEXT_BOOT_SVR_ENTRY(Ent) \
 184   (PXEBC_BOOT_SVR_ENTRY *) ((UINT8 *) Ent + sizeof (*(Ent)) + \
 185    ((Ent)->IpCnt - 1) * sizeof (EFI_IPv4_ADDRESS))
 186
 187 #define IS_PROXY_DHCP_OFFER(Offer) \
 188   EFI_IP4_EQUAL (&(Offer)->Dhcp4.Header.YourAddr, &mZeroIp4Addr)
 189
 190 #define IS_DISABLE_BCAST_DISCOVER(x) \
 191   (((x) & BIT (0)) == BIT (0))
 192
 193 #define IS_DISABLE_MCAST_DISCOVER(x) \
 194   (((x) & BIT (1)) == BIT (1))
 195
 196 #define IS_ENABLE_USE_SERVER_LIST(x) \
 197   (((x) & BIT (2)) == BIT (2))
 198
 199 #define IS_ENABLE_BOOT_FILE_NAME(x) \
 200   (((x) & BIT (3)) == BIT (3))
 201
 202
 203 #pragma pack(1)
 204 typedef struct {
 205   UINT8 ParaList[135];
 206 } PXEBC_DHCP4_OPTION_PARA;
 207
 208 typedef struct {
 209   UINT16  Size;
 210 } PXEBC_DHCP4_OPTION_MAX_MESG_SIZE;
 211
 212 typedef struct {
 213   UINT8 Type;
 214   UINT8 MajorVer;
 215   UINT8 MinorVer;
 216 } PXEBC_DHCP4_OPTION_UNDI;
 217
 218 typedef struct {
 219   UINT8 Type;
 220 } PXEBC_DHCP4_OPTION_MESG;
 221
 222 typedef struct {
 223   UINT16 Type;
 224 } PXEBC_DHCP4_OPTION_ARCH;
 225
 226 typedef struct {
 227   UINT8 ClassIdentifier[10];
 228   UINT8 ArchitecturePrefix[5];
 229   UINT8 ArchitectureType[5];
 230   UINT8 Lit3[1];
 231   UINT8 InterfaceName[4];
 232   UINT8 Lit4[1];
 233   UINT8 UndiMajor[3];
 234   UINT8 UndiMinor[3];
 235 } PXEBC_DHCP4_OPTION_CLID;
 236
 237 typedef struct {
 238   UINT8 Type;
 239   UINT8 Guid[16];
 240 } PXEBC_DHCP4_OPTION_UUID;
 241
 242 typedef struct {
 243   UINT16 Type;
 244   UINT16 Layer;
 245 } PXEBC_OPTION_BOOT_ITEM;
 246
 247 #pragma pack()
 248
 249 typedef union {
 250   PXEBC_DHCP4_OPTION_PARA           *Para;
 251   PXEBC_DHCP4_OPTION_UNDI           *Undi;
 252   PXEBC_DHCP4_OPTION_ARCH           *Arch;
 253   PXEBC_DHCP4_OPTION_CLID           *Clid;
 254   PXEBC_DHCP4_OPTION_UUID           *Uuid;
 255   PXEBC_DHCP4_OPTION_MESG           *Mesg;
 256   PXEBC_DHCP4_OPTION_MAX_MESG_SIZE  *MaxMesgSize;
 257 } PXEBC_DHCP4_OPTION_ENTRY;
 258
 259 typedef struct {
 260   UINT16            Type;
 261   UINT8             IpCnt;
 262   EFI_IPv4_ADDRESS  IpAddr[1];
 263 } PXEBC_BOOT_SVR_ENTRY;
 264
 265 typedef struct {
 266   UINT16            Type;
 267   UINT8             DescLen;
 268   UINT8             DescStr[1];
 269 } PXEBC_BOOT_MENU_ENTRY;
 270
 271 typedef struct {
 272   UINT8             Timeout;
 273   UINT8             Prompt[1];
 274 } PXEBC_MENU_PROMPT;
 275
 276 typedef struct {
 277   UINT32                BitMap[8];
 278   EFI_IPv4_ADDRESS      MtftpIp;
 279   UINT16                MtftpCPort;
 280   UINT16                MtftpSPort;
 281   UINT8                 MtftpTimeout;
 282   UINT8                 MtftpDelay;
 283   UINT8                 DiscoverCtrl;
 284   EFI_IPv4_ADDRESS      DiscoverMcastIp;
 285   EFI_IPv4_ADDRESS      McastIpBase;
 286   UINT16                McastIpBlock;
 287   UINT16                McastIpRange;
 288   UINT16                BootSrvType;
 289   UINT16                BootSrvLayer;
 290   PXEBC_BOOT_SVR_ENTRY  *BootSvr;
 291   UINT8                 BootSvrLen;
 292   PXEBC_BOOT_MENU_ENTRY *BootMenu;
 293   UINT8                 BootMenuLen;
 294   PXEBC_MENU_PROMPT     *MenuPrompt;
 295   UINT8                 MenuPromptLen;
 296   UINT32                *CredType;
 297   UINT8                 CredTypeLen;
 298 } PXEBC_VENDOR_OPTION;
 299
 300 typedef union {
 301   EFI_DHCP4_PACKET        Offer;
 302   EFI_DHCP4_PACKET        Ack;
 303   UINT8                   Buffer[PXEBC_DHCP4_PACKET_MAX_SIZE];
 304 } PXEBC_DHCP4_PACKET;
 305
 306 typedef struct {
 307   PXEBC_DHCP4_PACKET      Packet;
 308   PXEBC_OFFER_TYPE        OfferType;
 309   EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_TAG_INDEX_MAX];
 310   PXEBC_VENDOR_OPTION     VendorOpt;
 311 } PXEBC_DHCP4_PACKET_CACHE;
 312
 313
 314 /**
 315   Create a template DHCPv4 packet as a seed.
 316
 317   @param[out] Seed           Pointer to the seed packet.
 318   @param[in]  Udp4           Pointer to EFI_UDP4_PROTOCOL.
 319
 320 **/
 321 VOID
 322 PxeBcSeedDhcp4Packet (
 323   OUT EFI_DHCP4_PACKET       *Seed,
 324   IN  EFI_UDP4_PROTOCOL      *Udp4
 325   );
 326
 327
 328 /**
 329   Parse the cached DHCPv4 packet, including all the options.
 330
 331   @param[in]  Cache4             Pointer to cached DHCPv4 packet.
 332
 333   @retval     EFI_SUCCESS        Parsed the DHCPv4 packet successfully.
 334   @retval     EFI_DEVICE_ERROR   Failed to parse and invalid packet.
 335
 336 **/
 337 EFI_STATUS
 338 PxeBcParseDhcp4Packet (
 339   IN PXEBC_DHCP4_PACKET_CACHE    *Cache4
 340   );
 341
 342
 343 /**
 344   Build and send out the request packet for the bootfile, and parse the reply.
 345
 346   @param[in]  Private               Pointer to PxeBc private data.
 347   @param[in]  Type                  PxeBc option boot item type.
 348   @param[in]  Layer                 Pointer to option boot item layer.
 349   @param[in]  UseBis                Use BIS or not.
 350   @param[in]  DestIp                Pointer to the server address.
 351   @param[in]  IpCount               The total count of the server address.
 352   @param[in]  SrvList               Pointer to EFI_PXE_BASE_CODE_SRVLIST.
 353
 354   @retval     EFI_SUCCESS           Successfully discovered boot file.
 355   @retval     EFI_OUT_OF_RESOURCES  Failed to allocate resource.
 356   @retval     EFI_NOT_FOUND         Can't get the PXE reply packet.
 357   @retval     Others                Failed to discover boot file.
 358
 359 **/
 360 EFI_STATUS
 361 PxeBcDhcp4Discover (
 362   IN  PXEBC_PRIVATE_DATA              *Private,
 363   IN  UINT16                          Type,
 364   IN  UINT16                          *Layer,
 365   IN  BOOLEAN                         UseBis,
 366   IN  EFI_IP_ADDRESS                  *DestIp,
 367   IN  UINT16                          IpCount,
 368   IN  EFI_PXE_BASE_CODE_SRVLIST       *SrvList
 369   );
 370
 371
 372 /**
 373   Start the D.O.R.A DHCPv4 process to acquire the IPv4 address and other PXE boot information.
 374
 375   @param[in]  Private           Pointer to PxeBc private data.
 376   @param[in]  Dhcp4             Pointer to the EFI_DHCP4_PROTOCOL
 377
 378   @retval EFI_SUCCESS           The D.O.R.A process successfully finished.
 379   @retval Others                Failed to finish the D.O.R.A process.
 380
 381 **/
 382 EFI_STATUS
 383 PxeBcDhcp4Dora (
 384   IN PXEBC_PRIVATE_DATA         *Private,
 385   IN EFI_DHCP4_PROTOCOL         *Dhcp4
 386   );
 387
 388 #endif
 389