/* initialized commandline and starts linux. we need todo this for Atheros LSDK based firmwares since they have no ramsize detection */
static void set_cmdline(void)
{
/* check elf */
if (!s_memcmp(output_data,ELFMAG,SELFMAG))
{
unsigned int loadaddr;
unsigned int loadaddr_end;
fis_load_elf_image(output_data,0,uncompressedSize,&bootoffset,&loadaddr,&loadaddr_end);
}
char *pcmd;
struct parmblock *pb;
pb = (struct parmblock *)0x80030000;
pcmd = pb->text;
pb->memsize.name = pcmd;
strcpy(pcmd, "memsize");
pcmd += 7;
pb->memsize.val = ++pcmd;
strcpy(pcmd, "0x");
pcmd += 2;
static char *xlate = "0123456789abcdef";
int i;
int c = 0;
unsigned int val = RAM_SIZE;
for (i = 28; i >= 0; i -= 4) {
pcmd[c++] = xlate[(val >> i) & 0xf];
}
pcmd += c;
pb->modetty0.name = ++pcmd;
strcpy(pcmd, "modetty0");
pcmd += 8;
pb->modetty0.val = ++pcmd;
strcpy(pcmd, "115200,n,8,1,hw");
pcmd += 15;
pb->ethaddr.name = NULL;
pb->ethaddr.val = NULL;
pb->argv[0] = pcmd;
pb->argv[1] = ++pcmd;
pcmd[0] = 0; //terminate, no user commandline
void (*tt) (int a, char **b, void *c);
tt = bootoffset;
tt(2, pb->argv, pb);
}
int ImgFileCheck(char *pIn, int inLen, int type, char **ppOut, int *pOutLen)
{
char *p;
char ImgFileFlag[] = "NRCA";
char CodeFlag[] = "CODE";
char DBDataFlag[] = "DBDT";
char WebFileFlag[] = "WEBF";
char FontFlag[] = "FONT";
char Hash[16];
int fLen;
if (inLen < (50+32)) {
return -1;
}
//跳过前面的50字节的MAC+KEY+SN
p = pIn + 50;
//判断文件头
if (s_memcmp(p, (char *)ImgFileFlag, 4) != 0) {
return -1;
}
p += 4;
//判断文件版本
if (p[0] != 0x01) {
return -1;
}
p ++;
//跳过3字节保留字
p += 3;
//判断文件类型
if (!
(
((s_memcmp(p, CodeFlag, 4) == 0) && (type == IMGFILETYPE_CODE)) ||
((s_memcmp(p, DBDataFlag, 4) == 0) && (type == IMGFILETYPE_DBDATA)) ||
((s_memcmp(p, WebFileFlag, 4) == 0) && (type == IMGFILETYPE_WEBFILE)) ||
((s_memcmp(p, FontFlag, 4) == 0) && (type == IMGFILETYPE_FONT))
)
) {
return -1;
}
p += 4;
//判断文件长度
fLen = ((unsigned char)p[0] << 24) + ((unsigned char)p[1] << 16) +
((unsigned char)p[2] << 8) + ((unsigned char)p[3] << 0);
if (fLen > (inLen-50)) {
return -1;
}
p += 4;
s_memcpy(Hash, p, 16);
s_memset(p, 0, 16);
MD5_Init (&context);
MD5_Update (&context, (unsigned char *)pIn, fLen+50);
MD5_Final ((unsigned char *)digest, &context);
if (s_memcmp(Hash, digest, 16) != 0) {
return -1;
}
*ppOut = p + 16;
*pOutLen = fLen - 32;
return 0;
}
