tools: add Broadcom cable modem firmware image creator
Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 36873
This commit is contained in:
Florian Fainelli
@@ -62,6 +62,7 @@ define Host/Compile
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$(call cc, mkcameofw, -Wall)
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$(call cc, mkcameofw, -Wall)
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$(call cc,seama md5)
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$(call cc,seama md5)
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$(call cc,fix-u-media-header cyg_crc32,-Wall)
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$(call cc,fix-u-media-header cyg_crc32,-Wall)
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$(call cc,hcsmakeimage bcmalgo)
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endef
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endef
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define Host/Install
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define Host/Install
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248
tools/firmware-utils/src/bcmalgo.c
Normal file
248
tools/firmware-utils/src/bcmalgo.c
Normal file
@@ -0,0 +1,248 @@
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#include <stdlib.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <inttypes.h>
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#include <string.h>
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#include <getopt.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include "bcmalgo.h"
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#define UTIL_VERSION "0.1"
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#define ENDIAN_REVERSE_NEEDED
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uint32_t reverse_endian32 ( uint32_t data )
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{
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#ifdef ENDIAN_REVERSE_NEEDED
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return 0 | ( data & 0x000000ff ) << 24
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| ( data & 0x0000ff00 ) << 8
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| ( data & 0x00ff0000 ) >> 8
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| ( data & 0xff000000 ) >> 24;
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#else
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return data;
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#endif
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}
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uint16_t reverse_endian16 ( uint16_t data )
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{
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#ifdef ENDIAN_REVERSE_NEEDED
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return 0 | ( data & 0x00ff ) << 8
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| ( data & 0xff00 ) >> 8;
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#else
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return data;
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#endif
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}
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uint32_t get_buffer_crc ( char* filebuffer,size_t size )
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{
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long crc=0xffffffffL;
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long crcxor = 0xffffffffL;
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long num4 = 0xffffffffL;
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long num5 = size;
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long num6 = 0x4c11db7L;
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long num7 = 0x80000000L;
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int i;
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long j;
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for ( i = 0; i < ( num5 ); i++ )
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{
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long num2 = filebuffer[i];
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for ( j = 0x80L; j != 0L; j = j >> 1 )
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{
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long num3 = crc & num7;
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crc = crc << 1;
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if ( ( num2 & j ) != 0L )
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{
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num3 ^= num7;
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}
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if ( num3 != 0L )
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{
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crc ^= num6;
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}
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}
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}
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crc ^= crcxor;
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crc &= num4;
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uint8_t b1 = ( uint8_t ) ( ( crc & -16777216L ) >> 0x18 );
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uint8_t b2 = ( uint8_t ) ( ( crc & 0xff0000L ) >> 0x10 );
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uint8_t b3 = ( uint8_t ) ( ( crc & 0xff00L ) >> 8 );
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uint8_t b4 = ( uint8_t ) ( crc & 0xffL );
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int32_t crc_result = ( b1 | b2 << 8| b3 << 16| b4 <<24 );
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return reverse_endian32 ( crc_result );
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}
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//Thnx to Vector for the algo.
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uint32_t get_file_crc ( char* filename )
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{
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struct stat buf;
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stat ( filename,&buf );
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char* filebuffer = malloc ( buf.st_size+10 );
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FILE* fd = fopen ( filename,"r" );
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fread ( filebuffer, 1, buf.st_size,fd );
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fclose ( fd );
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uint32_t crc = get_buffer_crc ( filebuffer,buf.st_size );
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free ( filebuffer );
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return crc;
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}
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uint16_t get_hcs ( ldr_header_t* hd )
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{
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uint8_t* head = ( uint8_t* ) hd;
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uint8_t hcs_minor;
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uint8_t hcs_major;
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uint16_t n = 0xffff;
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uint16_t m = 0;
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int state = 0;
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int i,j;
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for ( i = 0; i < 0x54; i++ )
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{
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uint16_t m = head[i];
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m = m << 8;
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for ( j = 0; j < 8; j++ )
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{
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if ( ( ( n ^ m ) & 0x8000 ) == 0 )
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{
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state = 0;
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}
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else
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{
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state = 1;
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}
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n = n << 1;
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if ( state )
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{
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n ^= 0x1021;
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}
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m = m << 1;
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}
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n &= 0xffff;
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}
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n ^= 0xffff;
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hcs_major = ( uint8_t ) ( ( n & 0xff00 ) >> 8 );
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hcs_minor = ( uint8_t ) ( n & 0xff );
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uint16_t hcs = hcs_major <<8 | hcs_minor;
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return hcs;
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}
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ldr_header_t* construct_header ( uint32_t magic, uint16_t rev_maj,uint16_t rev_min, uint32_t build_date, uint32_t filelen, uint32_t ldaddress, const char* filename, uint32_t crc_data )
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{
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ldr_header_t* hd = malloc ( sizeof ( ldr_header_t ) );
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hd->magic=reverse_endian16 ( magic );
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hd->control=0; //FixMe: Make use of it once compression is around
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hd->rev_min = reverse_endian16 ( rev_min );
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hd->rev_maj = reverse_endian16 ( rev_maj );
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hd->build_date = reverse_endian32 ( build_date );
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hd->filelen = reverse_endian32 ( filelen );
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hd->ldaddress = reverse_endian32 ( ldaddress );
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printf ( "Creating header for %s...\n", filename );
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if ( strlen ( filename ) >63 )
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{
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printf ( "[!] Filename too long - stripping it to 63 bytes.\n" );
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strncpy ( ( char* ) &hd->filename, filename, 63 );
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hd->filename[63]=0x00;
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}
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else
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{
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strcpy ( ( char* ) &hd->filename, filename );
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}
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hd->crc=reverse_endian32 ( crc_data );
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hd->hcs = reverse_endian16 ( get_hcs ( hd ) );
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return hd;
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}
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static char control_unc[] = "Uncompressed";
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static char control_lz[] = "LZRW1/KH";
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static char control_mlzo[] = "mini-LZO";
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static char control_nrv[] = "NRV2D99 [Bootloader?]";
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static char control_nstdlzma[] = "(non-standard) LZMA";
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static char control_unk[] = "Unknown";
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char* get_control_info ( uint16_t control )
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{
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control = reverse_endian16 ( control );
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switch ( control )
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{
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case 0:
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return control_unc;
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break;
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case 1:
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return control_lz;
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break;
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case 2:
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return control_mlzo;
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break;
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case 3:
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return control_unc;
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break;
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case 4:
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return control_nrv;
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break;
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case 5:
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return control_nstdlzma;
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break;
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case 6:
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return control_unc;
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break;
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case 7:
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return control_unc;
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break;
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default:
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return control_unk;
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break;
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}
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}
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int dump_header ( ldr_header_t* hd )
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{
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printf ( "=== Header Information ===\n" );
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printf ( "Header magic:\t0x%04X\n",reverse_endian16 ( hd->magic ) );
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printf ( "Control:\t0x%04X (%s)\n",reverse_endian16 ( hd->control ), get_control_info ( hd->control ) );
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printf ( "Major rev. :\t0x%04X\n",reverse_endian16 ( hd->rev_maj ) );
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printf ( "Minor rev. :\t0x%04X\n",reverse_endian16 ( hd->rev_min ) );
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printf ( "File name :\t%s\n", ( char* ) &hd->filename );
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printf ( "File length:\t%d bytes\n", reverse_endian32 ( hd->filelen ) );
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printf ( "Build time:\t0x%08X //FixMe: print in human-readable form\n", reverse_endian32 ( hd->build_date ) ); //FixMe:
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printf ( "HCS:\t\t0x%04X ",reverse_endian16 ( hd->hcs ) );
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uint16_t hcs = get_hcs ( hd );
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int ret=0;
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if ( hcs ==reverse_endian16 ( hd->hcs ) )
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{
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printf ( "(OK!)\n" );
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}
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else
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{
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printf ( "(ERROR! expected 0x%04X)\n",hcs );
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ret=1;
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}
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//printf("HCS:\t0x%02X",reverse_endian32(hd->hcs));
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printf ( "Load address:\t0x%08X\n", reverse_endian32 ( hd->ldaddress ) ); //FixMe:
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printf ( "HNW:\t\t0x%04X\n",reverse_endian16 ( hd->her_znaet_chto ) ); //Hell knows what
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printf ( "CRC:\t\t0x%08X\n",reverse_endian32 ( hd->crc ) );
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printf ( "=== Binary Header Dump===\n" );
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int i,j;
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uint8_t* head = ( uint8_t* ) hd;
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for ( i=0;i<=sizeof ( ldr_header_t );i++ )
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{
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if ( i % 8==0 )
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printf ( "\n" );
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printf ( "0x%02x ",head[i] );
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}
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printf ( "\n\n== End Of Header dump ==\n" );
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return ret;
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}
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void print_copyright()
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{
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printf ( "Part of bcm-utils package ver. " UTIL_VERSION " \n" );
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printf ( "Copyright (C) 2009 Andrew 'Necromant' Andrianov\n"
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"This is free software, and you are welcome to redistribute it\n"
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"under certain conditions. See COPYING for details\n" );
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}
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83
tools/firmware-utils/src/bcmalgo.h
Normal file
83
tools/firmware-utils/src/bcmalgo.h
Normal file
@@ -0,0 +1,83 @@
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#ifndef bcmutils_H
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#define bcmutils_H
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typedef struct
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{
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uint16_t magic;
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uint16_t control;
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uint16_t rev_maj;
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uint16_t rev_min;
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uint32_t build_date;
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uint32_t filelen;
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uint32_t ldaddress;
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char filename[64];
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uint16_t hcs;
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uint16_t her_znaet_chto; //v dushe ne ebu
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uint32_t crc;
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} ldr_header_t;
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/**
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* Reverses endianess of a 32bit int, if the ENDIAN_REVERSE_NEEDED defined at compile-time
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|
* @param data
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|
* @return
|
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|
*/
|
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|
uint32_t reverse_endian32 ( uint32_t data );
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Reverses endianess of a 16bit int, if the ENDIAN_REVERSE_NEEDED defined at compile-time
|
||||||
|
* @param data
|
||||||
|
* @return
|
||||||
|
*/
|
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|
uint16_t reverse_endian16 ( uint16_t data );
|
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|
/**
|
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|
* Calculates the strange crc (used by bcm modems) of the file. Thnx fly out to Vector for the algorithm.
|
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|
* @param filename
|
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|
* @return
|
||||||
|
*/
|
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|
uint32_t get_file_crc ( char* filename );
|
||||||
|
|
||||||
|
/**
|
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|
* Calculates HCS of the header.
|
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|
* @param hd
|
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|
* @return
|
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|
*/
|
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|
uint16_t get_hcs ( ldr_header_t* hd );
|
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|
|
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|
/**
|
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|
* Constructs the header of the image with the information given It also automagically calculates HCS and writes it there.
|
||||||
|
* @param magic - magic device bytes
|
||||||
|
* @param rev_maj - major revision
|
||||||
|
* @param rev_min - minor revision
|
||||||
|
* @param build_date - build date (seconds from EPOCH UTC)
|
||||||
|
* @param filelen - file length in bytes
|
||||||
|
* @param ldaddress - Load adress
|
||||||
|
* @param filename - filename
|
||||||
|
* @param crc_data - the crc of the data
|
||||||
|
* @return
|
||||||
|
*/
|
||||||
|
ldr_header_t* construct_header ( uint32_t magic, uint16_t rev_maj,uint16_t rev_min, uint32_t build_date, uint32_t filelen, uint32_t ldaddress, const char* filename, uint32_t crc_data );
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Dumps header information to stdout.
|
||||||
|
* @param hd
|
||||||
|
*/
|
||||||
|
int dump_header ( ldr_header_t* hd );
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Returns a null terminated string describing what the control number meens
|
||||||
|
* DO NOT FREE IT!!!
|
||||||
|
* @param control
|
||||||
|
* @return
|
||||||
|
*/
|
||||||
|
char* get_control_info ( uint16_t control );
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Calculates bcmCRC of a data buffer.
|
||||||
|
* @param filebuffer - pointer to buffer
|
||||||
|
* @param size - buffer size
|
||||||
|
* @return
|
||||||
|
*/
|
||||||
|
uint32_t get_buffer_crc ( char* filebuffer, size_t size );
|
||||||
181
tools/firmware-utils/src/hcsmakeimage.c
Normal file
181
tools/firmware-utils/src/hcsmakeimage.c
Normal file
@@ -0,0 +1,181 @@
|
|||||||
|
#include <stdlib.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <inttypes.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <getopt.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <sys/time.h>
|
||||||
|
#include <sys/stat.h>
|
||||||
|
#include <libgen.h>
|
||||||
|
#include "bcmalgo.h"
|
||||||
|
|
||||||
|
|
||||||
|
int flag_print_version;
|
||||||
|
int flag_print_help;
|
||||||
|
int flag_compress;
|
||||||
|
|
||||||
|
uint16_t sa2100_magic = 0x2100;
|
||||||
|
uint16_t sa3349_magic = 0x3349;
|
||||||
|
uint32_t default_date = 0x00000000; //A long time ago in a galaxy far far away....
|
||||||
|
uint32_t default_load_address = 0x80010000; //The default load_address for the firmware image
|
||||||
|
|
||||||
|
static void print_help ( const char* ename )
|
||||||
|
{
|
||||||
|
printf ( "Firmware image packer and calculator for broadcom-based modems.\n" );
|
||||||
|
printf ( "Part of bcm-utils package.\n" );
|
||||||
|
printf ( "(c) 2009 Necromant (http://necromant.ath.cx). Thanks to Luke-jr for his initial work.\n" );
|
||||||
|
printf ( "usage: %s [options]\n", ename );
|
||||||
|
printf ( "Valid options are:\n" );
|
||||||
|
printf ( "--magic_bytes=value \t- specify magic bytes at the beginning of the image. default - 3349\n" );
|
||||||
|
printf ( "\t\t\t these can be sa2100 (for DPC2100 modem),\n\t\t\t sa3349 (haxorware guys use this one for some reason),\n\t\t\t or a custom hex value e.g. 0xFFFF\n" );
|
||||||
|
printf ( "--compress \t\t - Make use of LZMA (weird!) compression (Doesn't work yet).\n" );
|
||||||
|
printf ( "--rev_maj=value\t\t - major revision number. default 0\n" );
|
||||||
|
printf ( "--rev_min=value\t\t - minor revision number default 0\n" );
|
||||||
|
printf ( "--filename=value\t - use this filename in header instead of default (input filename)\n" );
|
||||||
|
printf ( "--ldaddress=value\t - hex value of the target load address. defaults to 0x80010000\n" );
|
||||||
|
printf ( "--input_file=value\t - What file are we packing?\n" );
|
||||||
|
printf ( "--output_file=value\t - What file shall we write? (default: image.bin)\n" );
|
||||||
|
#ifdef _HAX0RSTYLE
|
||||||
|
printf ( "--credz\t - Give some credz!\n" );
|
||||||
|
#endif
|
||||||
|
printf ( "\n" );
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int main ( int argc, char** argv )
|
||||||
|
{
|
||||||
|
if ( argc<2 )
|
||||||
|
{
|
||||||
|
print_help ( argv[0] );
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct option long_options[] =
|
||||||
|
{
|
||||||
|
{"magic_bytes", required_argument, 0, 'm'},
|
||||||
|
{"rev_maj", required_argument, 0, 'j'},
|
||||||
|
{"rev_min", required_argument, 0, 'n'},
|
||||||
|
{"ldaddress", required_argument, 0, 'l'},
|
||||||
|
{"filename", required_argument, 0, 'f'},
|
||||||
|
{"input_file", required_argument, 0, 'i'},
|
||||||
|
{"output_file", required_argument, 0, 'o'},
|
||||||
|
{"compress", no_argument, &flag_compress, 'c'},
|
||||||
|
{"version", no_argument, &flag_print_version, 'v'},
|
||||||
|
{"help", no_argument, &flag_print_help, 'h'},
|
||||||
|
{0, 0, 0, 0}
|
||||||
|
};
|
||||||
|
int option_index = 0;
|
||||||
|
int opt_result=0;
|
||||||
|
char* filename=NULL;
|
||||||
|
char* input=NULL;
|
||||||
|
char* magic=NULL;
|
||||||
|
char* major=NULL;
|
||||||
|
char* minor=NULL;
|
||||||
|
char* ldaddr=NULL;
|
||||||
|
char* output=NULL;
|
||||||
|
|
||||||
|
while ( opt_result>=0 )
|
||||||
|
{
|
||||||
|
opt_result = getopt_long ( argc, argv, "m:j:n:f:i:o:vh", long_options, &option_index );
|
||||||
|
switch ( opt_result )
|
||||||
|
{
|
||||||
|
case 0:
|
||||||
|
printf ( "o!\n" );
|
||||||
|
break;
|
||||||
|
case 'h':
|
||||||
|
print_help ( argv[0] );
|
||||||
|
break;
|
||||||
|
case 'l':
|
||||||
|
ldaddr=optarg;
|
||||||
|
break;
|
||||||
|
case 'f':
|
||||||
|
filename=optarg;
|
||||||
|
break;
|
||||||
|
case 'i':
|
||||||
|
input=optarg;
|
||||||
|
break;
|
||||||
|
case 'o':
|
||||||
|
output=optarg;
|
||||||
|
break;
|
||||||
|
case 'm':
|
||||||
|
magic=optarg;
|
||||||
|
break;
|
||||||
|
case 'j':
|
||||||
|
major=optarg;
|
||||||
|
break;
|
||||||
|
case 'n':
|
||||||
|
minor=optarg;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if ( input==NULL )
|
||||||
|
{
|
||||||
|
printf ( "Telepaths are still on holidays. I guess you should tell me what file should I process.\n\n" );
|
||||||
|
exit ( 1 );
|
||||||
|
}
|
||||||
|
if ( access ( input,R_OK ) !=0 )
|
||||||
|
{
|
||||||
|
printf ( "I cannot access the file %s. Is it there? Am I allowed?\n\n", input );
|
||||||
|
exit ( 1 );
|
||||||
|
}
|
||||||
|
uint32_t magicnum=sa2100_magic;
|
||||||
|
|
||||||
|
if ( magic )
|
||||||
|
{
|
||||||
|
if ( strcmp ( magic,"sa2100" ) ==0 ) magicnum=sa2100_magic; else
|
||||||
|
if ( strcmp ( magic,"sa3349" ) ==0 ) magicnum=sa3349_magic; else
|
||||||
|
{
|
||||||
|
sscanf ( magic, "0x%04X", &magicnum );
|
||||||
|
}
|
||||||
|
}
|
||||||
|
unsigned int majrev=0;
|
||||||
|
if ( major )
|
||||||
|
{
|
||||||
|
sscanf ( major, "%d", &majrev );
|
||||||
|
}
|
||||||
|
unsigned int minrev=0;
|
||||||
|
if ( minor )
|
||||||
|
{
|
||||||
|
sscanf ( minor, "%d", &minrev );
|
||||||
|
}
|
||||||
|
uint32_t ldaddress = default_load_address;
|
||||||
|
if ( ldaddr )
|
||||||
|
{
|
||||||
|
sscanf ( ldaddr, "0x%08X", &ldaddress );
|
||||||
|
}
|
||||||
|
char* dupe = strdup(input);
|
||||||
|
char* fname = basename ( dupe );
|
||||||
|
if ( filename )
|
||||||
|
{
|
||||||
|
fname = filename;
|
||||||
|
}
|
||||||
|
struct timeval tm;
|
||||||
|
gettimeofday ( &tm,NULL );
|
||||||
|
struct stat buf;
|
||||||
|
stat ( input,&buf );
|
||||||
|
ldr_header_t* head = construct_header ( magicnum, (uint16_t) majrev, (uint16_t) minrev, ( uint32_t ) tm.tv_sec, ( uint32_t ) buf.st_size, ldaddress, fname, get_file_crc ( input ) );
|
||||||
|
free(dupe);
|
||||||
|
//uint32_t magic, uint16_t rev_maj,uint16_t rev_min, uint32_t build_date, uint32_t filelen, uint32_t ldaddress, const char* filename, uint32_t crc
|
||||||
|
//FILE* fd = fopen ("/tftpboot/haxorware11rev32.bin","r");
|
||||||
|
//fread(head,sizeof(ldr_header_t),1,fd);
|
||||||
|
char* filebuffer = malloc ( buf.st_size+10 );
|
||||||
|
FILE* fd = fopen ( input,"r" );
|
||||||
|
fread ( filebuffer, 1, buf.st_size,fd );
|
||||||
|
if (!output)
|
||||||
|
{
|
||||||
|
output = malloc(strlen(input+5));
|
||||||
|
strcpy(output,input);
|
||||||
|
strcat(output,".bin");
|
||||||
|
}
|
||||||
|
dump_header ( head );
|
||||||
|
FILE* fd_out = fopen ( output,"w+" );
|
||||||
|
if (!fd_out)
|
||||||
|
{
|
||||||
|
fprintf(stderr, "Failed to open output file: %s\n", output);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
fwrite ( head,1,sizeof ( ldr_header_t ),fd_out );
|
||||||
|
fwrite ( filebuffer,1,buf.st_size,fd_out );
|
||||||
|
printf("Firmware image %s is ready\n", output);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user