freebsd-dev/sys/boot/i386/libi386/pxe.h
Paul Saab 646cf5017b Add support to send the string 'PXEClient' as the Vendor class
identifier to the DHCP server.  Now you can check for this string
in your dhcp configuration to decide whether you will hand out a
lease to the client or not.
2000-08-11 08:36:17 +00:00

523 lines
15 KiB
C

/*
* Copyright (c) 2000 Alfred Perlstein <alfred@freebsd.org>
* All rights reserved.
* Copyright (c) 2000 Paul Saab <ps@freebsd.org>
* All rights reserved.
* Copyright (c) 2000 John Baldwin <jhb@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* The typedefs and structures declared in this file
* clearly violate style(9), the reason for this is to conform to the
* typedefs/structure-names used in the Intel literature to avoid confusion.
*
* It's for your own good. :)
*/
/* It seems that intel didn't think about ABI,
* either that or 16bit ABI != 32bit ABI (which seems reasonable)
* I have to thank Intel for the hair loss I incurred trying to figure
* out why PXE was mis-reading structures I was passing it (at least
* from my point of view)
*
* Solution: use gcc's '__attribute__ ((packed))' to correctly align
* structures passed into PXE
* Question: does this really work for PXE's expected ABI?
*/
#define PACKED __attribute__ ((packed))
#define S_SIZE(s) s, sizeof(s) - 1
#define IP_STR "%d.%d.%d.%d"
#define IP_ARGS(ip) \
(int)(ip >> 24) & 0xff, (int)(ip >> 16) & 0xff, \
(int)(ip >> 8) & 0xff, (int)ip & 0xff
#define MAC_STR "%02x:%02x:%02x:%02x:%02x:%02x"
#define MAC_ARGS(mac) \
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]
#define PXENFSROOTPATH "/pxeroot"
typedef struct {
uint16_t offset;
uint16_t segment;
} SEGOFF16_t;
typedef struct {
uint16_t Seg_Addr;
uint32_t Phy_Addr;
uint16_t Seg_Size;
} SEGDESC_t;
typedef uint16_t SEGSEL_t;
typedef uint16_t PXENV_STATUS_t;
typedef uint32_t IP4_t;
typedef uint32_t ADDR32_t;
typedef uint16_t UDP_PORT_t;
#define MAC_ADDR_LEN 16
typedef uint8_t MAC_ADDR[MAC_ADDR_LEN];
/* PXENV+ */
typedef struct {
uint8_t Signature[6]; /* 'PXENV+' */
uint16_t Version; /* MSB = major, LSB = minor */
uint8_t Length; /* structure length */
uint8_t Checksum; /* checksum pad */
SEGOFF16_t RMEntry; /* SEG:OFF to PXE entry point */
/* don't use PMOffset and PMSelector (from the 2.1 PXE manual) */
uint32_t PMOffset; /* Protected mode entry */
SEGSEL_t PMSelector; /* Protected mode selector */
SEGSEL_t StackSeg; /* Stack segment address */
uint16_t StackSize; /* Stack segment size (bytes) */
SEGSEL_t BC_CodeSeg; /* BC Code segment address */
uint16_t BC_CodeSize; /* BC Code segment size (bytes) */
SEGSEL_t BC_DataSeg; /* BC Data segment address */
uint16_t BC_DataSize; /* BC Data segment size (bytes) */
SEGSEL_t UNDIDataSeg; /* UNDI Data segment address */
uint16_t UNDIDataSize; /* UNDI Data segment size (bytes) */
SEGSEL_t UNDICodeSeg; /* UNDI Code segment address */
uint16_t UNDICodeSize; /* UNDI Code segment size (bytes) */
SEGOFF16_t PXEPtr; /* SEG:OFF to !PXE struct,
only present when Version > 2.1 */
} PACKED pxenv_t;
/* !PXE */
typedef struct {
uint8_t Signature[4];
uint8_t StructLength;
uint8_t StructCksum;
uint8_t StructRev;
uint8_t reserved_1;
SEGOFF16_t UNDIROMID;
SEGOFF16_t BaseROMID;
SEGOFF16_t EntryPointSP;
SEGOFF16_t EntryPointESP;
SEGOFF16_t StatusCallout;
uint8_t reserved_2;
uint8_t SegDescCn;
SEGSEL_t FirstSelector;
SEGDESC_t Stack;
SEGDESC_t UNDIData;
SEGDESC_t UNDICode;
SEGDESC_t UNDICodeWrite;
SEGDESC_t BC_Data;
SEGDESC_t BC_Code;
SEGDESC_t BC_CodeWrite;
} PACKED pxe_t;
#define PXENV_START_UNDI 0x0000
typedef struct {
PXENV_STATUS_t Status;
uint16_t ax;
uint16_t bx;
uint16_t dx;
uint16_t di;
uint16_t es;
} PACKED t_PXENV_START_UNDI;
#define PXENV_UNDI_STARTUP 0x0001
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_UNDI_STARTUP;
#define PXENV_UNDI_CLEANUP 0x0002
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_UNDI_CLEANUP;
#define PXENV_UNDI_INITIALIZE 0x0003
typedef struct {
PXENV_STATUS_t Status;
ADDR32_t ProtocolIni; /* Phys addr of a copy of the driver module */
uint8_t reserved[8];
} PACKED t_PXENV_UNDI_INITALIZE;
#define MAXNUM_MCADDR 8
typedef struct {
PXENV_STATUS_t Status;
uint16_t MCastAddrCount;
MAC_ADDR McastAddr[MAXNUM_MCADDR];
} PACKED t_PXENV_UNDI_MCAST_ADDRESS;
#define PXENV_UNDI_RESET_ADAPTER 0x0004
typedef struct {
PXENV_STATUS_t Status;
t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
} PACKED t_PXENV_UNDI_RESET;
#define PXENV_UNDI_SHUTDOWN 0x0005
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_UNDI_SHUTDOWN;
#define PXENV_UNDI_OPEN 0x0006
typedef struct {
PXENV_STATUS_t Status;
uint16_t OpenFlag;
uint16_t PktFilter;
# define FLTR_DIRECTED 0x0001
# define FLTR_BRDCST 0x0002
# define FLTR_PRMSCS 0x0003
# define FLTR_SRC_RTG 0x0004
t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
} PACKED t_PXENV_UNDI_OPEN;
#define PXENV_UNDI_CLOSE 0x0007
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_UNDI_CLOSE;
#define PXENV_UNDI_TRANSMIT 0x0008
typedef struct {
PXENV_STATUS_t Status;
uint8_t Protocol;
# define P_UNKNOWN 0
# define P_IP 1
# define P_ARP 2
# define P_RARP 3
uint8_t XmitFlag;
# define XMT_DESTADDR 0x0000
# define XMT_BROADCAST 0x0001
SEGOFF16_t DestAddr;
SEGOFF16_t TBD;
uint32_t Reserved[2];
} PACKED t_PXENV_UNDI_TRANSMIT;
#define MAX_DATA_BLKS 8
typedef struct {
uint16_t ImmedLength;
SEGOFF16_t Xmit;
uint16_t DataBlkCount;
struct DataBlk {
uint8_t TDPtrType;
uint8_t TDRsvdByte;
uint16_t TDDataLen;
SEGOFF16_t TDDataPtr;
} DataBlock[MAX_DATA_BLKS];
} PACKED t_PXENV_UNDI_TBD;
#define PXENV_UNDI_SET_MCAST_ADDRESS 0x0009
typedef struct {
PXENV_STATUS_t Status;
t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
} PACKED t_PXENV_UNDI_SET_MCAST_ADDR;
#define PXENV_UNDI_SET_STATION_ADDRESS 0x000A
typedef struct {
PXENV_STATUS_t Status;
MAC_ADDR StationAddress; /* Temp MAC addres to use */
} PACKED t_PXENV_UNDI_SET_STATION_ADDR;
#define PXENV_UNDI_SET_PACKET_FILTER 0x000B
typedef struct {
PXENV_STATUS_t Status;
uint8_t filter; /* see UNDI_OPEN (0x0006) */
} PACKED t_PXENV_UNDI_SET_PACKET_FILTER;
#define PXENV_UNDI_GET_INFORMATION 0x000C
typedef struct {
PXENV_STATUS_t Status;
uint16_t BaseIo; /* Adapter base I/O address */
uint16_t IntNumber; /* Adapter IRQ number */
uint16_t MaxTranUnit; /* Adapter maximum transmit unit */
uint16_t HwType; /* Type of protocol at the hardware addr */
# define ETHER_TYPE 1
# define EXP_ETHER_TYPE 2
# define IEEE_TYPE 6
# define ARCNET_TYPE 7
uint16_t HwAddrLen; /* Length of hardware address */
MAC_ADDR CurrentNodeAddress; /* Current hardware address */
MAC_ADDR PermNodeAddress; /* Permanent hardware address */
SEGSEL_t ROMAddress; /* Real mode ROM segment address */
uint16_t RxBufCt; /* Receive queue length */
uint16_t TxBufCt; /* Transmit queue length */
} PACKED t_PXENV_UNDI_GET_INFORMATION;
#define PXENV_UNDI_GET_STATISTICS 0x000D
typedef struct {
PXENV_STATUS_t Status;
uint32_t XmitGoodFrames; /* Number of successful transmissions */
uint32_t RcvGoodFrames; /* Number of good frames received */
uint32_t RcvCRCErrors; /* Number of frames with CRC errors */
uint32_t RcvResourceErrors; /* Number of frames dropped */
} PACKED t_PXENV_UNDI_GET_STATISTICS;
#define PXENV_UNDI_CLEAR_STATISTICS 0x000E
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_UNDI_CLEAR_STATISTICS;
#define PXENV_UNDI_INITIATE_DIAGS 0x000F
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_UNDI_INITIATE_DIAGS;
#define PXENV_UNDI_FORCE_INTERRUPT 0x0010
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_UNDI_FORCE_INTERRUPT;
#define PXENV_UNDI_GET_MCAST_ADDRESS 0x0011
typedef struct {
PXENV_STATUS_t Status;
IP4_t InetAddr; /* IP mulicast address */
MAC_ADDR MediaAddr; /* MAC multicast address */
} PACKED t_PXENV_UNDI_GET_MCAST_ADDR;
#define PXENV_UNDI_GET_NIC_TYPE 0x0012
typedef struct {
PXENV_STATUS_t Status;
uint8_t NicType; /* Type of NIC */
# define PCI_NIC 2
# define PnP_NIC 3
# define CardBus_NIC 4
union {
struct {
uint16_t Vendor_ID;
uint16_t Dev_ID;
uint8_t Base_Class;
uint8_t Sub_Class;
uint8_t Prog_Intf;
uint8_t Rev;
uint16_t BusDevFunc;
uint16_t SubVendor_ID;
uint16_t SubDevice_ID;
} pci, cardbus;
struct {
uint32_t EISA_Dev_ID;
uint8_t Base_Class;
uint8_t Sub_Class;
uint8_t Prog_Intf;
uint16_t CardSelNum;
} pnp;
} info;
} PACKED t_PXENV_UNDI_GET_NIC_TYPE;
#define PXENV_UNDI_GET_IFACE_INFO 0x0013
typedef struct {
PXENV_STATUS_t Status;
uint8_t IfaceType[16]; /* Name of MAC type in ASCII. */
uint32_t LinkSpeed; /* Defined in NDIS 2.0 spec */
uint32_t ServiceFlags; /* Defined in NDIS 2.0 spec */
uint32_t Reserved[4]; /* must be 0 */
} PACKED t_PXENV_UNDI_GET_NDIS_INFO;
#define PXENV_UNDI_ISR 0x0014
typedef struct {
PXENV_STATUS_t Status;
uint16_t FuncFlag; /* PXENV_UNDI_ISR_OUT_xxx */
uint16_t BufferLength; /* Length of Frame */
uint16_t FrameLength; /* Total length of reciever frame */
uint16_t FrameHeaderLength; /* Length of the media header in Frame */
SEGOFF16_t Frame; /* receive buffer */
uint8_t ProtType; /* Protocol type */
uint8_t PktType; /* Packet Type */
# define PXENV_UNDI_ISR_IN_START 1
# define PXENV_UNDI_ISR_IN_PROCESS 2
# define PXENV_UNDI_ISR_IN_GET_NEXT 3
/* one of these will be returned for PXENV_UNDI_ISR_IN_START */
# define PXENV_UNDI_ISR_OUT_OURS 0
# define PXENV_UNDI_ISR_OUT_NOT_OUTS 1
/*
* one of these will bre returnd for PXEND_UNDI_ISR_IN_PROCESS
* and PXENV_UNDI_ISR_IN_GET_NEXT
*/
# define PXENV_UNDI_ISR_OUT_DONE 0
# define PXENV_UNDI_ISR_OUT_TRANSMIT 2
# define PXENV_UNDI_ISR_OUT_RECIEVE 3
# define PXENV_UNDI_ISR_OUT_BUSY 4
} PACKED t_PXENV_UNDI_ISR;
#define PXENV_STOP_UNDI 0x0015
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_STOP_UNDI;
#define PXENV_TFTP_OPEN 0x0020
typedef struct {
PXENV_STATUS_t Status;
IP4_t ServerIPAddress;
IP4_t GatewayIPAddress;
uint8_t FileName[128];
UDP_PORT_t TFTPPort;
uint16_t PacketSize;
} PACKED t_PXENV_TFTP_OPEN;
#define PXENV_TFTP_CLOSE 0x0021
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_TFTP_CLOSE;
#define PXENV_TFTP_READ 0x0022
typedef struct {
PXENV_STATUS_t Status;
uint16_t PacketNumber;
uint16_t BufferSize;
SEGOFF16_t Buffer;
} PACKED t_PXENV_TFTP_READ;
#define PXENV_TFTP_READ_FILE 0x0023
typedef struct {
PXENV_STATUS_t Status;
uint8_t FileName[128];
uint32_t BufferSize;
ADDR32_t Buffer;
IP4_t ServerIPAddress;
IP4_t GatewayIPAdress;
IP4_t McastIPAdress;
UDP_PORT_t TFTPClntPort;
UDP_PORT_t TFTPSrvPort;
uint16_t TFTPOpenTimeOut;
uint16_t TFTPReopenDelay;
} PACKED t_PXENV_TFTP_READ_FILE;
#define PXENV_TFTP_GET_FSIZE 0x0025
typedef struct {
PXENV_STATUS_t Status;
IP4_t ServerIPAddress;
IP4_t GatewayIPAdress;
uint8_t FileName[128];
uint32_t FileSize;
} PACKED t_PXENV_TFTP_GET_FSIZE;
#define PXENV_UDP_OPEN 0x0030
typedef struct {
PXENV_STATUS_t status;
IP4_t src_ip; /* IP address of this station */
} PACKED t_PXENV_UDP_OPEN;
#define PXENV_UDP_CLOSE 0x0031
typedef struct {
PXENV_STATUS_t status;
} PACKED t_PXENV_UDP_CLOSE;
#define PXENV_UDP_READ 0x0032
typedef struct {
PXENV_STATUS_t status;
IP4_t src_ip; /* IP of sender */
IP4_t dest_ip; /* Only accept packets sent to this IP */
UDP_PORT_t s_port; /* UDP source port of sender */
UDP_PORT_t d_port; /* Only accept packets sent to this port */
uint16_t buffer_size; /* Size of the packet buffer */
SEGOFF16_t buffer; /* SEG:OFF to the packet buffer */
} PACKED t_PXENV_UDP_READ;
#define PXENV_UDP_WRITE 0x0033
typedef struct {
PXENV_STATUS_t status;
IP4_t ip; /* dest ip addr */
IP4_t gw; /* ip gateway */
UDP_PORT_t src_port; /* source udp port */
UDP_PORT_t dst_port; /* destination udp port */
uint16_t buffer_size; /* Size of the packet buffer */
SEGOFF16_t buffer; /* SEG:OFF to the packet buffer */
} PACKED t_PXENV_UDP_WRITE;
#define PXENV_UNLOAD_STACK 0x0070
typedef struct {
PXENV_STATUS_t Status;
uint8_t reserved[10];
} PACKED t_PXENV_UNLOAD_STACK;
#define PXENV_GET_CACHED_INFO 0x0071
typedef struct {
PXENV_STATUS_t Status;
uint16_t PacketType; /* type (defined right here) */
# define PXENV_PACKET_TYPE_DHCP_DISCOVER 1
# define PXENV_PACKET_TYPE_DHCP_ACK 2
# define PXENV_PACKET_TYPE_BINL_REPLY 3
uint16_t BufferSize; /* max to copy, leave at 0 for pointer */
SEGOFF16_t Buffer; /* copy to, leave at 0 for pointer */
uint16_t BufferLimit; /* max size of buffer in BC dataseg ? */
} PACKED t_PXENV_GET_CACHED_INFO;
/* structure filled in by PXENV_GET_CACHED_INFO
* (how we determine which IP we downloaded the initial bootstrap from)
* words can't describe...
*/
typedef struct {
uint8_t opcode;
# define BOOTP_REQ 1
# define BOOTP_REP 2
uint8_t Hardware; /* hardware type */
uint8_t Hardlen; /* hardware addr len */
uint8_t Gatehops; /* zero it */
uint32_t ident; /* random number chosen by client */
uint16_t seconds; /* seconds since did initial bootstrap */
uint16_t Flags; /* seconds since did initial bootstrap */
# define BOOTP_BCAST 0x8000 /* ? */
IP4_t cip; /* Client IP */
IP4_t yip; /* Your IP */
IP4_t sip; /* IP to use for next boot stage */
IP4_t gip; /* Relay IP ? */
MAC_ADDR CAddr; /* Client hardware address */
uint8_t Sname[64]; /* Server's hostname (Optional) */
uint8_t bootfile[128]; /* boot filename */
union {
# if 1
# define BOOTP_DHCPVEND 1024 /* DHCP extended vendor field size */
# else
# define BOOTP_DHCPVEND 312 /* DHCP standard vendor field size */
# endif
uint8_t d[BOOTP_DHCPVEND]; /* raw array of vendor/dhcp options */
struct {
uint8_t magic[4]; /* DHCP magic cookie */
# ifndef VM_RFC1048
# define VM_RFC1048 0x63825363L /* ? */
# endif
uint32_t flags; /* bootp flags/opcodes */
uint8_t pad[56]; /* I don't think intel knows what a
union does... */
} v;
} vendor;
} PACKED BOOTPLAYER;
#define PXENV_RESTART_TFTP 0x0073
#define t_PXENV_RESTART_TFTP t_PXENV_TFTP_READ_FILE
#define PXENV_START_BASE 0x0075
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_START_BASE;
#define PXENV_STOP_BASE 0x0076
typedef struct {
PXENV_STATUS_t Status;
} PACKED t_PXENV_STOP_BASE;