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Diffstat (limited to 'tools/creative.c')
-rw-r--r--tools/creative.c144
1 files changed, 77 insertions, 67 deletions
diff --git a/tools/creative.c b/tools/creative.c
index 287df03..7748f56 100644
--- a/tools/creative.c
+++ b/tools/creative.c
@@ -21,6 +21,7 @@
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
+#include <elf.h>
#include "creative.h"
#include "hmac-sha1.h"
@@ -30,36 +31,19 @@ static const char null_key_v2[] = "CTL:N0MAD|PDE0.DPMP.";
static const char null_key_v3[] = "CTL:Z3N07|PDE0.DPMP.";
static const char null_key_v4[] = "CTL:N0MAD|PDE0.DPFP.";
-static const unsigned char bootloader_v1[] =
-{
- 0xD3, 0xF0, 0x29, 0xE3, /* MSR CPSR_cf, #0xD3 */
- 0x09, 0xF6, 0xA0, 0xE3 /* MOV PC, #0x900000 */
-};
-
-static const unsigned char bootloader_v2[] =
-{
- 0xD3, 0xF0, 0x29, 0xE3, /* MSR CPSR_cf, #0xD3 */
- 0x09, 0xF6, 0xA0, 0xE3 /* MOV PC, #0x40000000 */
-};
-
-static const unsigned char bootloader_v3[] =
-{
- 0 /* Unknown */
-};
-
static const struct device_info devices[] =
{
/* Creative Zen Vision:M */
- {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0:\0M", 42, null_key_v2, bootloader_v1, sizeof(bootloader_v1), 0x00900000},
+ {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0:\0M", 42, null_key_v2},
/* Creative Zen Vision:M Go! */
- {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0:\0M\0 \0G\0o\0!", 50, null_key_v2, bootloader_v1, sizeof(bootloader_v1), 0x00900000},
+ {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0:\0M\0 \0G\0o\0!", 50, null_key_v2},
/* Creative Zen Vision © TL */
/* The "©" should be ANSI encoded or the device won't accept the firmware package. */
- {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0 \0©\0T\0L", 46, null_key_v2, bootloader_v1, sizeof(bootloader_v1), 0x00900000},
+ {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0 \0©\0T\0L", 46, null_key_v2},
/* Creative ZEN V */
- {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0E\0N\0 \0V", 42, null_key_v4, bootloader_v3, sizeof(bootloader_v3), 0x00000000},
+ {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0E\0N\0 \0V", 42, null_key_v4},
/* Creative ZEN */
- {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0E\0N", 48, null_key_v3, bootloader_v2, sizeof(bootloader_v2), 0x40000000}
+ {"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0E\0N", 48, null_key_v3}
};
/*
@@ -69,7 +53,7 @@ extern void int2le(unsigned int val, unsigned char* addr);
extern unsigned int le2int(unsigned char* buf);
-static int make_ciff_file(unsigned char *inbuf, unsigned int length,
+static int make_ciff_file(const unsigned char *inbuf, unsigned int length,
unsigned char *outbuf, int device)
{
unsigned char key[20];
@@ -83,7 +67,8 @@ static int make_ciff_file(unsigned char *inbuf, unsigned int length,
memcpy(&outbuf[0x70], "ATAD", 4);
int2le(length+32, &outbuf[0x74]);
memcpy(&outbuf[0x78], "H\0j\0u\0k\0e\0b\0o\0x\0\x32\0.\0j\0r\0m",
- 32); /*Unicode encoded*/
+ 25); /*Unicode encoded*/
+ memset(&outbuf[0x78+25], 0, 32);
memcpy(&outbuf[0x98], inbuf, length);
memcpy(&outbuf[0x98+length], "LLUN", 4);
int2le(20, &outbuf[0x98+length+4]);
@@ -94,57 +79,76 @@ static int make_ciff_file(unsigned char *inbuf, unsigned int length,
return length+0x90+0x1C+8;
}
-static int make_jrm_file(unsigned char *inbuf, unsigned int length,
- unsigned char *outbuf, int device)
+static int elf_convert(const unsigned char *inbuf, unsigned char *outbuf)
{
- unsigned int i;
- unsigned int sum = 0;
+ Elf32_Ehdr *main_header;
+ Elf32_Shdr *section_header;
+ unsigned int i, j, sum, startaddr;
+
+ main_header = (Elf32_Ehdr*)inbuf;
+ if( !( main_header->e_ident[0] == ELFMAG0 && main_header->e_ident[1] == ELFMAG1
+ && main_header->e_ident[2] == ELFMAG2 && main_header->e_ident[3] == ELFMAG3 ) )
+ {
+ printf("Invalid ELF header!\n");
+ return -1;
+ }
+
+ startaddr = (unsigned int)outbuf;
+
+ for(i = 0; i < main_header->e_shnum; i++)
+ {
+ section_header = (Elf32_Shdr*)(inbuf+main_header->e_shoff+i*sizeof(Elf32_Shdr));
+
+ if( (section_header->sh_flags & SHF_WRITE || section_header->sh_flags & SHF_ALLOC
+ || section_header->sh_flags & SHF_EXECINSTR) && section_header->sh_size > 0
+ && section_header->sh_type != SHT_NOBITS )
+ {
+ /* Address */
+ int2le(section_header->sh_addr, outbuf);
+ outbuf += 4;
+ /* Size */
+ int2le(section_header->sh_size, outbuf);
+ outbuf += 4;
+ /* Checksum */
+ sum = 0;
+ for(j=0; j<section_header->sh_size; j+= 4)
+ sum += le2int((unsigned char*)(inbuf+section_header->sh_offset+j)) + (le2int((unsigned char*)(inbuf+section_header->sh_offset+j))>>16);
+ int2le(sum, outbuf);
+ outbuf += 2;
+ memset(outbuf, 0, 2);
+ outbuf += 2;
+ /* Data */
+ memcpy(outbuf, inbuf+section_header->sh_offset, section_header->sh_size);
+ outbuf += section_header->sh_size;
+ }
+ }
+ return (unsigned int)(outbuf - startaddr);
+}
+
+static int make_jrm_file(const unsigned char *inbuf, unsigned char *outbuf)
+{
+ int length;
/* Clear the header area to zero */
memset(outbuf, 0, 0x18);
/* Header (EDOC) */
memcpy(outbuf, "EDOC", 4);
- /* Total Size */
- #define SIZEOF_BOOTLOADER_CODE devices[device].bootloader_size
- int2le(4+0xC+SIZEOF_BOOTLOADER_CODE+0xC+length, &outbuf[0x4]);
+ /* Total Size: temporarily set to 0 */
+ memset(&outbuf[0x4], 0, 4);
/* 4 bytes of zero */
- memset(&outbuf[0x8], 0, 0x4);
+ memset(&outbuf[0x8], 0, 4);
- /* First block starts here ... */
- /* Address = 0x0 */
- memset(&outbuf[0xC], 0, 0x4);
- /* Size */
- int2le(SIZEOF_BOOTLOADER_CODE, &outbuf[0x10]);
- /* Checksum */
- for(i=0; i<SIZEOF_BOOTLOADER_CODE; i+= 4)
- sum += le2int((unsigned char*)&devices[device].bootloader[i]) + (le2int((unsigned char*)&devices[device].bootloader[i])>>16);
- int2le(sum, &outbuf[0x14]);
- outbuf[0x16] = 0;
- outbuf[0x17] = 0;
- /*Data */
- memcpy(&outbuf[0x18], devices[device].bootloader, SIZEOF_BOOTLOADER_CODE);
-
- /* Second block starts here ... */
- /* Address = depends on target */
- #define SB_START (0x18+SIZEOF_BOOTLOADER_CODE)
- int2le(devices[device].memory_address, &outbuf[SB_START]);
- /* Size */
- int2le(length, &outbuf[SB_START+0x4]);
- /* Checksum */
- sum = 0;
- for(i=0; i<length; i+= 4)
- sum += le2int(&inbuf[i]) + (le2int(&inbuf[i])>>16);
- int2le(sum, &outbuf[SB_START+0x8]);
- outbuf[SB_START+0xA] = 0;
- outbuf[SB_START+0xB] = 0;
- /* Data */
- memcpy(&outbuf[SB_START+0xC], inbuf, length);
-
- return SB_START+0xC+length;
+ length = elf_convert(inbuf, &outbuf[0xC]);
+ if(length < 0)
+ return -1;
+ /* Now set the actual Total Size */
+ int2le(4+length, &outbuf[0x4]);
+
+ return 0xC+length;
}
-int zvm_encode(char *iname, char *oname, int device)
+int zvm_encode(const char *iname, const char *oname, int device)
{
size_t len;
int length;
@@ -164,7 +168,7 @@ int zvm_encode(char *iname, char *oname, int device)
buf = (unsigned char*)malloc(length);
if ( !buf ) {
- printf("out of memory!\n");
+ printf("Out of memory!\n");
return -1;
}
@@ -178,11 +182,17 @@ int zvm_encode(char *iname, char *oname, int device)
outbuf = (unsigned char*)malloc(length+0x300);
if ( !outbuf ) {
free(buf);
- printf("out of memory!\n");
+ printf("Out of memory!\n");
return -1;
}
- length = make_jrm_file(buf, len, outbuf, device);
+ length = make_jrm_file(buf, outbuf);
free(buf);
+ if(length < 0)
+ {
+ free(outbuf);
+ printf("Error in making JRM file!\n");
+ return -1;
+ }
buf = (unsigned char*)malloc(length+0x200);
memset(buf, 0, length+0x200);
length = make_ciff_file(outbuf, length, buf, device);
generated by cgit v1.1 at 2026-04-25 01:21:37 +0000