From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- .../ipxe/src/arch/i386/interface/pxe/pxe_file.c | 342 +++++++++++++++++++++ 1 file changed, 342 insertions(+) create mode 100644 qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_file.c (limited to 'qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_file.c') diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_file.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_file.c new file mode 100644 index 000000000..6e9610294 --- /dev/null +++ b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_file.c @@ -0,0 +1,342 @@ +/** @file + * + * PXE FILE API + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Copyright (C) 2007 Michael Brown . + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +FEATURE ( FEATURE_MISC, "PXEXT", DHCP_EB_FEATURE_PXE_EXT, 2 ); + +/** + * FILE OPEN + * + * @v file_open Pointer to a struct s_PXENV_FILE_OPEN + * @v s_PXENV_FILE_OPEN::FileName URL of file to open + * @ret #PXENV_EXIT_SUCCESS File was opened + * @ret #PXENV_EXIT_FAILURE File was not opened + * @ret s_PXENV_FILE_OPEN::Status PXE status code + * @ret s_PXENV_FILE_OPEN::FileHandle Handle of opened file + * + */ +static PXENV_EXIT_t pxenv_file_open ( struct s_PXENV_FILE_OPEN *file_open ) { + userptr_t filename; + size_t filename_len; + int fd; + + DBG ( "PXENV_FILE_OPEN" ); + + /* Copy name from external program, and open it */ + filename = real_to_user ( file_open->FileName.segment, + file_open->FileName.offset ); + filename_len = strlen_user ( filename, 0 ); + { + char uri_string[ filename_len + 1 ]; + + copy_from_user ( uri_string, filename, 0, + sizeof ( uri_string ) ); + DBG ( " %s", uri_string ); + fd = open ( uri_string ); + } + + if ( fd < 0 ) { + file_open->Status = PXENV_STATUS ( fd ); + return PXENV_EXIT_FAILURE; + } + + DBG ( " as file %d", fd ); + + file_open->FileHandle = fd; + file_open->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** + * FILE CLOSE + * + * @v file_close Pointer to a struct s_PXENV_FILE_CLOSE + * @v s_PXENV_FILE_CLOSE::FileHandle File handle + * @ret #PXENV_EXIT_SUCCESS File was closed + * @ret #PXENV_EXIT_FAILURE File was not closed + * @ret s_PXENV_FILE_CLOSE::Status PXE status code + * + */ +static PXENV_EXIT_t pxenv_file_close ( struct s_PXENV_FILE_CLOSE *file_close ) { + + DBG ( "PXENV_FILE_CLOSE %d", file_close->FileHandle ); + + close ( file_close->FileHandle ); + file_close->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** + * FILE SELECT + * + * @v file_select Pointer to a struct s_PXENV_FILE_SELECT + * @v s_PXENV_FILE_SELECT::FileHandle File handle + * @ret #PXENV_EXIT_SUCCESS File has been checked for readiness + * @ret #PXENV_EXIT_FAILURE File has not been checked for readiness + * @ret s_PXENV_FILE_SELECT::Status PXE status code + * @ret s_PXENV_FILE_SELECT::Ready Indication of readiness + * + */ +static PXENV_EXIT_t +pxenv_file_select ( struct s_PXENV_FILE_SELECT *file_select ) { + fd_set fdset; + int ready; + + DBG ( "PXENV_FILE_SELECT %d", file_select->FileHandle ); + + FD_ZERO ( &fdset ); + FD_SET ( file_select->FileHandle, &fdset ); + if ( ( ready = select ( &fdset, 0 ) ) < 0 ) { + file_select->Status = PXENV_STATUS ( ready ); + return PXENV_EXIT_FAILURE; + } + + file_select->Ready = ( ready ? RDY_READ : 0 ); + file_select->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** + * FILE READ + * + * @v file_read Pointer to a struct s_PXENV_FILE_READ + * @v s_PXENV_FILE_READ::FileHandle File handle + * @v s_PXENV_FILE_READ::BufferSize Size of data buffer + * @v s_PXENV_FILE_READ::Buffer Data buffer + * @ret #PXENV_EXIT_SUCCESS Data has been read from file + * @ret #PXENV_EXIT_FAILURE Data has not been read from file + * @ret s_PXENV_FILE_READ::Status PXE status code + * @ret s_PXENV_FILE_READ::Ready Indication of readiness + * @ret s_PXENV_FILE_READ::BufferSize Length of data read + * + */ +static PXENV_EXIT_t pxenv_file_read ( struct s_PXENV_FILE_READ *file_read ) { + userptr_t buffer; + ssize_t len; + + DBG ( "PXENV_FILE_READ %d to %04x:%04x+%04x", file_read->FileHandle, + file_read->Buffer.segment, file_read->Buffer.offset, + file_read->BufferSize ); + + buffer = real_to_user ( file_read->Buffer.segment, + file_read->Buffer.offset ); + if ( ( len = read_user ( file_read->FileHandle, buffer, 0, + file_read->BufferSize ) ) < 0 ) { + file_read->Status = PXENV_STATUS ( len ); + return PXENV_EXIT_FAILURE; + } + + DBG ( " read %04zx", ( ( size_t ) len ) ); + + file_read->BufferSize = len; + file_read->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** + * GET FILE SIZE + * + * @v get_file_size Pointer to a struct s_PXENV_GET_FILE_SIZE + * @v s_PXENV_GET_FILE_SIZE::FileHandle File handle + * @ret #PXENV_EXIT_SUCCESS File size has been determined + * @ret #PXENV_EXIT_FAILURE File size has not been determined + * @ret s_PXENV_GET_FILE_SIZE::Status PXE status code + * @ret s_PXENV_GET_FILE_SIZE::FileSize Size of file + */ +static PXENV_EXIT_t +pxenv_get_file_size ( struct s_PXENV_GET_FILE_SIZE *get_file_size ) { + ssize_t filesize; + + DBG ( "PXENV_GET_FILE_SIZE %d", get_file_size->FileHandle ); + + filesize = fsize ( get_file_size->FileHandle ); + if ( filesize < 0 ) { + get_file_size->Status = PXENV_STATUS ( filesize ); + return PXENV_EXIT_FAILURE; + } + + DBG ( " is %zd", ( ( size_t ) filesize ) ); + + get_file_size->FileSize = filesize; + get_file_size->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** + * FILE EXEC + * + * @v file_exec Pointer to a struct s_PXENV_FILE_EXEC + * @v s_PXENV_FILE_EXEC::Command Command to execute + * @ret #PXENV_EXIT_SUCCESS Command was executed successfully + * @ret #PXENV_EXIT_FAILURE Command was not executed successfully + * @ret s_PXENV_FILE_EXEC::Status PXE status code + * + */ +static PXENV_EXIT_t pxenv_file_exec ( struct s_PXENV_FILE_EXEC *file_exec ) { + userptr_t command; + size_t command_len; + int rc; + + DBG ( "PXENV_FILE_EXEC" ); + + /* Copy name from external program, and exec it */ + command = real_to_user ( file_exec->Command.segment, + file_exec->Command.offset ); + command_len = strlen_user ( command, 0 ); + { + char command_string[ command_len + 1 ]; + + copy_from_user ( command_string, command, 0, + sizeof ( command_string ) ); + DBG ( " %s", command_string ); + + if ( ( rc = system ( command_string ) ) != 0 ) { + file_exec->Status = PXENV_STATUS ( rc ); + return PXENV_EXIT_FAILURE; + } + } + + file_exec->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** + * FILE CMDLINE + * + * @v file_cmdline Pointer to a struct s_PXENV_FILE_CMDLINE + * @v s_PXENV_FILE_CMDLINE::Buffer Buffer to contain command line + * @v s_PXENV_FILE_CMDLINE::BufferSize Size of buffer + * @ret #PXENV_EXIT_SUCCESS Command was executed successfully + * @ret #PXENV_EXIT_FAILURE Command was not executed successfully + * @ret s_PXENV_FILE_EXEC::Status PXE status code + * @ret s_PXENV_FILE_EXEC::BufferSize Length of command line (including NUL) + * + */ +static PXENV_EXIT_t +pxenv_file_cmdline ( struct s_PXENV_FILE_CMDLINE *file_cmdline ) { + userptr_t buffer; + size_t max_len; + size_t len; + + DBG ( "PXENV_FILE_CMDLINE to %04x:%04x+%04x \"%s\"\n", + file_cmdline->Buffer.segment, file_cmdline->Buffer.offset, + file_cmdline->BufferSize, pxe_cmdline ); + + buffer = real_to_user ( file_cmdline->Buffer.segment, + file_cmdline->Buffer.offset ); + len = file_cmdline->BufferSize; + max_len = ( pxe_cmdline ? + ( strlen ( pxe_cmdline ) + 1 /* NUL */ ) : 0 ); + if ( len > max_len ) + len = max_len; + copy_to_user ( buffer, 0, pxe_cmdline, len ); + file_cmdline->BufferSize = max_len; + + file_cmdline->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** + * FILE API CHECK + * + * @v file_exec Pointer to a struct s_PXENV_FILE_API_CHECK + * @v s_PXENV_FILE_API_CHECK::Magic Inbound magic number (0x91d447b2) + * @ret #PXENV_EXIT_SUCCESS Command was executed successfully + * @ret #PXENV_EXIT_FAILURE Command was not executed successfully + * @ret s_PXENV_FILE_API_CHECK::Status PXE status code + * @ret s_PXENV_FILE_API_CHECK::Magic Outbound magic number (0xe9c17b20) + * @ret s_PXENV_FILE_API_CHECK::Provider "iPXE" (0x45585067) + * @ret s_PXENV_FILE_API_CHECK::APIMask API function bitmask + * @ret s_PXENV_FILE_API_CHECK::Flags Reserved + * + */ +static PXENV_EXIT_t +pxenv_file_api_check ( struct s_PXENV_FILE_API_CHECK *file_api_check ) { + struct pxe_api_call *call; + unsigned int mask = 0; + unsigned int offset; + + DBG ( "PXENV_FILE_API_CHECK" ); + + /* Check for magic value */ + if ( file_api_check->Magic != 0x91d447b2 ) { + file_api_check->Status = PXENV_STATUS_BAD_FUNC; + return PXENV_EXIT_FAILURE; + } + + /* Check for required parameter size */ + if ( file_api_check->Size < sizeof ( *file_api_check ) ) { + file_api_check->Status = PXENV_STATUS_OUT_OF_RESOURCES; + return PXENV_EXIT_FAILURE; + } + + /* Determine supported calls */ + for_each_table_entry ( call, PXE_API_CALLS ) { + offset = ( call->opcode - PXENV_FILE_MIN ); + if ( offset <= ( PXENV_FILE_MAX - PXENV_FILE_MIN ) ) + mask |= ( 1 << offset ); + } + + /* Fill in parameters */ + file_api_check->Size = sizeof ( *file_api_check ); + file_api_check->Magic = 0xe9c17b20; + file_api_check->Provider = 0x45585067; /* "iPXE" */ + file_api_check->APIMask = mask; + file_api_check->Flags = 0; /* None defined */ + + file_api_check->Status = PXENV_STATUS_SUCCESS; + return PXENV_EXIT_SUCCESS; +} + +/** PXE file API */ +struct pxe_api_call pxe_file_api[] __pxe_api_call = { + PXE_API_CALL ( PXENV_FILE_OPEN, pxenv_file_open, + struct s_PXENV_FILE_OPEN ), + PXE_API_CALL ( PXENV_FILE_CLOSE, pxenv_file_close, + struct s_PXENV_FILE_CLOSE ), + PXE_API_CALL ( PXENV_FILE_SELECT, pxenv_file_select, + struct s_PXENV_FILE_SELECT ), + PXE_API_CALL ( PXENV_FILE_READ, pxenv_file_read, + struct s_PXENV_FILE_READ ), + PXE_API_CALL ( PXENV_GET_FILE_SIZE, pxenv_get_file_size, + struct s_PXENV_GET_FILE_SIZE ), + PXE_API_CALL ( PXENV_FILE_EXEC, pxenv_file_exec, + struct s_PXENV_FILE_EXEC ), + PXE_API_CALL ( PXENV_FILE_CMDLINE, pxenv_file_cmdline, + struct s_PXENV_FILE_CMDLINE ), + PXE_API_CALL ( PXENV_FILE_API_CHECK, pxenv_file_api_check, + struct s_PXENV_FILE_API_CHECK ), +}; -- cgit 1.2.3-korg