/
githubmirror
/
ipxe
Обзор
Документация
Войти
/
githubmirror
/
ipxe
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
src/arch/x86/include/pxe.h
197 строк
6 KB
Michael Brown
[pxe] Remove userptr_t from PXE API call dispatcher
25 апр 2025, 01:38
25 апр 2025, 01:38
8b3b4f2
Код
Авторство
О чём код?
#ifndef PXE_H #define PXE_H FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include "pxe_types.h" #include "pxe_error.h" #include "pxe_api.h" #include <ipxe/device.h> #include <ipxe/tables.h> /** PXE API invalid function code */ #define PXENV_UNKNOWN 0xffff /** Parameter block for pxenv_unknown() */ struct s_PXENV_UNKNOWN { PXENV_STATUS_t Status; /**< PXE status code */ } __attribute__ (( packed )); typedef struct s_PXENV_UNKNOWN PXENV_UNKNOWN_t; /* Union used for PXE API calls; we don't know the type of the * structure until we interpret the opcode. Also, Status is available * in the same location for any opcode, and it's convenient to have * non-specific access to it. */ union u_PXENV_ANY { /* Make it easy to read status for any operation */ PXENV_STATUS_t Status; struct s_PXENV_UNKNOWN unknown; struct s_PXENV_UNLOAD_STACK unload_stack; struct s_PXENV_GET_CACHED_INFO get_cached_info; struct s_PXENV_TFTP_READ_FILE restart_tftp; struct s_PXENV_START_UNDI start_undi; struct s_PXENV_STOP_UNDI stop_undi; struct s_PXENV_START_BASE start_base; struct s_PXENV_STOP_BASE stop_base; struct s_PXENV_TFTP_OPEN tftp_open; struct s_PXENV_TFTP_CLOSE tftp_close; struct s_PXENV_TFTP_READ tftp_read; struct s_PXENV_TFTP_READ_FILE tftp_read_file; struct s_PXENV_TFTP_GET_FSIZE tftp_get_fsize; struct s_PXENV_UDP_OPEN udp_open; struct s_PXENV_UDP_CLOSE udp_close; struct s_PXENV_UDP_WRITE udp_write; struct s_PXENV_UDP_READ udp_read; struct s_PXENV_UNDI_STARTUP undi_startup; struct s_PXENV_UNDI_CLEANUP undi_cleanup; struct s_PXENV_UNDI_INITIALIZE undi_initialize; struct s_PXENV_UNDI_RESET undi_reset_adapter; struct s_PXENV_UNDI_SHUTDOWN undi_shutdown; struct s_PXENV_UNDI_OPEN undi_open; struct s_PXENV_UNDI_CLOSE undi_close; struct s_PXENV_UNDI_TRANSMIT undi_transmit; struct s_PXENV_UNDI_SET_MCAST_ADDRESS undi_set_mcast_address; struct s_PXENV_UNDI_SET_STATION_ADDRESS undi_set_station_address; struct s_PXENV_UNDI_SET_PACKET_FILTER undi_set_packet_filter; struct s_PXENV_UNDI_GET_INFORMATION undi_get_information; struct s_PXENV_UNDI_GET_STATISTICS undi_get_statistics; struct s_PXENV_UNDI_CLEAR_STATISTICS undi_clear_statistics; struct s_PXENV_UNDI_INITIATE_DIAGS undi_initiate_diags; struct s_PXENV_UNDI_FORCE_INTERRUPT undi_force_interrupt; struct s_PXENV_UNDI_GET_MCAST_ADDRESS undi_get_mcast_address; struct s_PXENV_UNDI_GET_NIC_TYPE undi_get_nic_type; struct s_PXENV_UNDI_GET_IFACE_INFO undi_get_iface_info; struct s_PXENV_UNDI_GET_STATE undi_get_state; struct s_PXENV_UNDI_ISR undi_isr; struct s_PXENV_FILE_OPEN file_open; struct s_PXENV_FILE_CLOSE file_close; struct s_PXENV_FILE_SELECT file_select; struct s_PXENV_FILE_READ file_read; struct s_PXENV_GET_FILE_SIZE get_file_size; struct s_PXENV_FILE_EXEC file_exec; struct s_PXENV_FILE_API_CHECK file_api_check; struct s_PXENV_FILE_EXIT_HOOK file_exit_hook; }; typedef union u_PXENV_ANY PXENV_ANY_t; /** A PXE API call */ struct pxe_api_call { /** Entry point * * @v params PXE API call parameters * @ret exit PXE API call exit code */ PXENV_EXIT_t ( * entry ) ( union u_PXENV_ANY *params ); /** Opcode */ uint16_t opcode; }; /** PXE API call table */ #define PXE_API_CALLS __table ( struct pxe_api_call, "pxe_api_calls" ) /** Declare a PXE API call */ #define __pxe_api_call __table_entry ( PXE_API_CALLS, 01 ) /** * Define a PXE API call * * @v _opcode Opcode * @v _entry Entry point * @v _params_type Type of parameter structure * @ret call PXE API call */ #define PXE_API_CALL( _opcode, _entry, _params_type ) { \ .entry = ( ( ( ( PXENV_EXIT_t ( * ) ( _params_type *params ) ) NULL ) \ == ( ( typeof ( _entry ) * ) NULL ) ) \ ? ( ( PXENV_EXIT_t ( * ) \ ( union u_PXENV_ANY *params ) ) _entry ) \ : ( ( PXENV_EXIT_t ( * ) \ ( union u_PXENV_ANY *params ) ) _entry ) ), \ .opcode = _opcode, \ } /** An UNDI expansion ROM header */ struct undi_rom_header { /** Signature * * Must be equal to @c ROM_SIGNATURE */ UINT16_t Signature; /** ROM length in 512-byte blocks */ UINT8_t ROMLength; /** Unused */ UINT8_t unused[0x13]; /** Offset of the PXE ROM ID structure */ UINT16_t PXEROMID; /** Offset of the PCI ROM structure */ UINT16_t PCIRHeader; } __attribute__ (( packed )); /** Signature for an expansion ROM */ #define ROM_SIGNATURE 0xaa55 /** An UNDI ROM ID structure */ struct undi_rom_id { /** Signature * * Must be equal to @c UNDI_ROM_ID_SIGNATURE */ UINT32_t Signature; /** Length of structure */ UINT8_t StructLength; /** Checksum */ UINT8_t StructCksum; /** Structure revision * * Must be zero. */ UINT8_t StructRev; /** UNDI revision * * Version 2.1.0 is encoded as the byte sequence 0x00, 0x01, 0x02. */ UINT8_t UNDIRev[3]; /** Offset to UNDI loader */ UINT16_t UNDILoader; /** Minimum required stack segment size */ UINT16_t StackSize; /** Minimum required data segment size */ UINT16_t DataSize; /** Minimum required code segment size */ UINT16_t CodeSize; } __attribute__ (( packed )); /** Signature for an UNDI ROM ID structure */ #define UNDI_ROM_ID_SIGNATURE \ ( ( 'U' << 0 ) + ( 'N' << 8 ) + ( 'D' << 16 ) + ( 'I' << 24 ) ) /** A PCI expansion header */ struct pcir_header { /** Signature * * Must be equal to @c PCIR_SIGNATURE */ uint32_t signature; /** PCI vendor ID */ uint16_t vendor_id; /** PCI device ID */ uint16_t device_id; } __attribute__ (( packed )); /** Signature for an UNDI ROM ID structure */ #define PCIR_SIGNATURE \ ( ( 'P' << 0 ) + ( 'C' << 8 ) + ( 'I' << 16 ) + ( 'R' << 24 ) ) extern struct net_device *pxe_netdev; extern const char *pxe_cmdline; extern void pxe_set_netdev ( struct net_device *netdev ); extern void pxe_fake_cached_info ( void ); extern PXENV_EXIT_t pxenv_tftp_read_file ( struct s_PXENV_TFTP_READ_FILE *tftp_read_file ); extern PXENV_EXIT_t undi_loader ( struct s_UNDI_LOADER *undi_loader ); #endif /* PXE_H */