--- /dev/null
+/*
+ * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * 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.
+ */
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include <assert.h>
+#include <getopt.h>
+#include <ipxe/efi/efi.h>
+#include <ipxe/efi/IndustryStandard/PeImage.h>
+
+#define eprintf(...) fprintf ( stderr, __VA_ARGS__ )
+
+/** Command-line options */
+struct options {
+};
+
+/** EFI fat binary file header */
+struct efifatbin_file_header {
+ /** Signature */
+ uint32_t signature;
+ /** Count */
+ uint32_t count;
+} __attribute__ (( packed ));
+
+/** EFI fat binary signature */
+#define EFIFATBIN_SIGNATURE 0x0ef1fab9
+
+/** EFI fat binary image header */
+struct efifatbin_image_header {
+ /** Flags */
+ uint64_t flags;
+ /** Offset */
+ uint32_t offset;
+ /** Length */
+ uint32_t len;
+ /** Padding */
+ uint32_t pad;
+} __attribute__ (( packed ));
+
+/** EFI fat binary default flags */
+#define EFIFATBIN_FLAGS 0x0000000300000007ULL
+
+/** EFI fat binary 64-bit flag */
+#define EFIFATBIN_64BIT 0x0000000001000000ULL
+
+/**
+ * Allocate memory
+ *
+ * @v len Length of memory to allocate
+ * @ret ptr Pointer to allocated memory
+ */
+static void * xmalloc ( size_t len ) {
+ void *ptr;
+
+ ptr = malloc ( len );
+ if ( ! ptr ) {
+ eprintf ( "Could not allocate %zd bytes\n", len );
+ exit ( 1 );
+ }
+
+ return ptr;
+}
+
+/**
+ * Generate EFI fat binary
+ *
+ * @v count Number of input files
+ * @v infile_names Input filenames
+ * @v outfile_name Output filename
+ */
+static void make_efifatbin ( unsigned int count, char **infile_names,
+ const char *outfile_name ) {
+ FILE *infile[count];
+ FILE *outfile;
+ struct stat stat[count];
+ void *buf[count];
+ struct efifatbin_file_header file_header;
+ struct efifatbin_image_header header[count];
+ size_t offset;
+ EFI_IMAGE_DOS_HEADER *dos;
+ union {
+ EFI_IMAGE_NT_HEADERS32 nt32;
+ EFI_IMAGE_NT_HEADERS64 nt64;
+ } *nt;
+ unsigned int i;
+
+ /* Generate file header */
+ file_header.signature = EFIFATBIN_SIGNATURE;
+ file_header.count = count;
+ offset = ( sizeof ( file_header ) + sizeof ( header ) );
+
+ /* Process input files */
+ for ( i = 0 ; i < count ; i++ ) {
+
+ /* Open input file */
+ infile[i] = fopen ( infile_names[i], "r" );
+ if ( ! infile[i] ) {
+ eprintf ( "Could not open %s for reading: %s\n",
+ infile_names[i], strerror ( errno ) );
+ exit ( 1 );
+ }
+
+ /* Determine PE file size */
+ if ( fstat ( fileno ( infile[i] ), &stat[i] ) != 0 ) {
+ eprintf ( "Could not stat %s: %s\n",
+ infile_names[i], strerror ( errno ) );
+ exit ( 1 );
+ }
+
+ /* Allocate buffer and read in PE file */
+ buf[i] = xmalloc ( stat[i].st_size );
+ if ( fread ( buf[i], stat[i].st_size, 1, infile[i] ) != 1 ) {
+ eprintf ( "Could not read %s: %s\n",
+ infile_names[i], strerror ( errno ) );
+ exit ( 1 );
+ }
+
+ /* Close input file */
+ fclose ( infile[i] );
+
+ /* Generate image header */
+ header[i].flags = EFIFATBIN_FLAGS;
+ header[i].offset = offset;
+ header[i].len = stat[i].st_size;
+ header[i].pad = 0;
+
+ /* Determine architecture */
+ dos = buf[i];
+ nt = ( buf[i] + dos->e_lfanew );
+ if ( nt->nt32.FileHeader.Machine == EFI_IMAGE_MACHINE_X64 )
+ header[i].flags |= EFIFATBIN_64BIT;
+
+ /* Allow space for this image */
+ offset += stat[i].st_size;
+ }
+
+ /* Open output file */
+ outfile = fopen ( outfile_name, "w" );
+ if ( ! outfile ) {
+ eprintf ( "Could not open %s for writing: %s\n",
+ outfile_name, strerror ( errno ) );
+ exit ( 1 );
+ }
+
+ /* Write fat binary header */
+ if ( fwrite ( &file_header, sizeof ( file_header ), 1, outfile ) != 1 ){
+ eprintf ( "Could not write %s: %s\n",
+ outfile_name, strerror ( errno ) );
+ exit ( 1 );
+ }
+ for ( i = 0 ; i < count ; i++ ) {
+ if ( fwrite ( &header[i], sizeof ( header[i] ), 1,
+ outfile ) != 1 ) {
+ eprintf ( "Could not write %s: %s\n",
+ outfile_name, strerror ( errno ) );
+ exit ( 1 );
+ }
+ }
+
+ /* Write images */
+ for ( i = 0 ; i < count ; i++ ) {
+ if ( fwrite ( buf[i], stat[i].st_size, 1, outfile ) != 1 ) {
+ eprintf ( "Could not write %s: %s\n",
+ outfile_name, strerror ( errno ) );
+ exit ( 1 );
+ }
+ }
+
+ /* Close output file */
+ fclose ( outfile );
+}
+
+/**
+ * Print help
+ *
+ * @v program_name Program name
+ */
+static void print_help ( const char *program_name ) {
+ eprintf ( "Syntax: %s infile [infile...] outfile\n", program_name );
+}
+
+/**
+ * Parse command-line options
+ *
+ * @v argc Argument count
+ * @v argv Argument list
+ * @v opts Options structure to populate
+ */
+static int parse_options ( const int argc, char **argv,
+ struct options *opts __attribute__ (( unused )) ) {
+ int c;
+
+ while (1) {
+ int option_index = 0;
+ static struct option long_options[] = {
+ { "help", 0, NULL, 'h' },
+ { 0, 0, 0, 0 }
+ };
+
+ if ( ( c = getopt_long ( argc, argv, "h",
+ long_options,
+ &option_index ) ) == -1 ) {
+ break;
+ }
+
+ switch ( c ) {
+ case 'h':
+ print_help ( argv[0] );
+ exit ( 0 );
+ case '?':
+ default:
+ exit ( 2 );
+ }
+ }
+ return optind;
+}
+
+int main ( int argc, char **argv ) {
+ struct options opts;
+ int infile_index;
+ int outfile_index;
+ int count;
+
+ /* Parse command-line arguments */
+ memset ( &opts, 0, sizeof ( opts ) );
+ infile_index = parse_options ( argc, argv, &opts );
+ outfile_index = ( argc - 1 );
+ count = ( outfile_index - infile_index );
+ if ( count <= 0 ) {
+ print_help ( argv[0] );
+ exit ( 2 );
+ }
+
+ /* Generate fat binary */
+ make_efifatbin ( count, &argv[infile_index], argv[outfile_index] );
+
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff