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mkxqimage/mkxqimage.c

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Initial commit
2020-06-13 14:03:59 +00:00
/* This file was generated by the Hex-Rays decompiler.
Copyright (c) 2007-2020 Hex-Rays <info@hex-rays.com>
Detected compiler: GNU C++
*/
//#include "defs.h"
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/reboot.h>
#include <sys/ioctl.h>
#include <openssl/evp.h>
#include <openssl/md5.h>
#include <openssl/pem.h>
typedef struct __attribute__((aligned(4)))
{
uint32_t magic;
uint32_t rsaLen;
uint32_t crc32sum;
uint16_t romType;
int16_t model;
uint32_t fileOffs[8];
} MiRomHdr;
typedef struct
{
uint16_t magic;
uint16_t rsvd0;
uint32_t flashaddr;
uint32_t filesize;
uint16_t mtdid;
uint16_t unk5;
char name[32];
} MiRomFile;
//-------------------------------------------------------------------------
// Function declarations
void error_exit();
size_t util_get_file_len(FILE *a1);
int util_check_model_idx(int16_t model_idx);
int main(int argc, const char **argv, const char **envp);
int for_each_file(FILE *f, int (*callback)(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata), void *userData);
int load_image(FILE *f, int disableVerify);
int command_verify_image(const char *filename);
int extract_normal_rom_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
int command_extract_file(const char *filename, const char *sshFile, int disableVerify, const char *fname, int outputToFile);
int flash_mtd_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
int command_mtd_flash(const char *filename, int needVerify);
int dump_file_desc(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
int command_list_files(const char *image, const char *a2);
int get_version_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
int command_get_image_version(const char *a1);
int command_get_ssh_key();
unsigned int crc32_update(uint8_t *buf, int64_t size, unsigned int state);
uint32_t calc_crc32(FILE *f, int start, unsigned int size);
int64_t init_pkey(EVP_MD_CTX *ctx, RSA **pem, EVP_PKEY **ppkey, int isSsh); // idb
int j_verify_rsa(FILE *f, unsigned int start, unsigned int size, const unsigned char *sigbuf, unsigned int siglen, unsigned int isSsh);
int verify_rsa(FILE *f, int start, unsigned int size, const unsigned char *sigbuf, unsigned int siglen, unsigned int isSsh);
int64_t write_buf(int fd, void *buf, unsigned int size);
int open_and_erase_mtd(unsigned int mtdId);
int64_t calcMd5(unsigned char *a1, const char *a2);
int64_t transpostGuid(uint8_t *a1, char *outbuf);
int64_t get_ssh_key();
int extract_ssh_rom_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
//-------------------------------------------------------------------------
// Data declarations
uint32_t crc32_table[256] =
{
0, 0x77073096, 0xEE0E612C, 0x990951BA,
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
};
char *model_nr[30] =
{
"NULL",
"NULL",
"NULL",
"R1CM",
"R2D",
"R1CL",
"R2CM",
"R3",
"R3D",
"R3L",
"R3P",
"P01",
"R3A",
"R3G",
"R4",
"R4C",
"D01",
"R4A",
"R4CM",
"R4AC",
"R3GV2",
"R2600",
"R2100",
"RM2100",
"R3600",
"R1350",
"R2200",
"R2350",
"IR1200G",
"R1800"
}; // weak
int max_model_nr = 30; // weak
//----- (0000000000401730) ----------------------------------------------------
void error_exit()
{
fwrite("Ouch!\n", 1u, 6u, stderr);
exit(1);
}
//----- (00000000004017A4) ----------------------------------------------------
size_t util_get_file_len(FILE *a1)
{
size_t v3; // [xsp+28h] [xbp+28h]
int v4; // [xsp+2Ch] [xbp+2Ch]
v4 = ftell(a1);
fseek(a1, 0LL, 2);
v3 = ftell(a1);
fseek(a1, v4, 0);
return v3;
}
//----- (00000000004017F8) ----------------------------------------------------
int util_check_model_idx(int16_t model_idx)
{
Update to support off-device use
2020-06-13 14:33:52 +00:00
#ifdef ONDEVICE
Initial commit
2020-06-13 14:03:59 +00:00
int result; // w0
char v3[8]; // [xsp+20h] [xbp+20h] BYREF
FILE *stream; // [xsp+28h] [xbp+28h]
memset(v3, 0, 8);
stream = popen("cat /proc/xiaoqiang/model", "r");
if ( stream )
{
if ( fgets(v3, 8, stream) )
{
pclose(stream);
if ( model_idx < max_model_nr )
{
result = strcmp(v3, model_nr[model_idx]);
}
else
{
fprintf(
stderr,
"Illegal model: model_idx=%d,max_model_nr=%d \n",
(unsigned int)model_idx,
(unsigned int)max_model_nr);
result = -1;
}
}
else
{
fwrite("Failed to get model \n", 1u, 0x15u, stderr);
result = -1;
}
}
else
{
fwrite("Failed to run command\n", 1u, 0x16u, stderr);
result = -1;
}
return result;
Update to support off-device use
2020-06-13 14:33:52 +00:00
#else
printf("%s\n", model_nr[model_idx]);
return 0;
#endif
Initial commit
2020-06-13 14:03:59 +00:00
}
//----- (0000000000401918) ----------------------------------------------------
int main(int argc, const char **argv, const char **envp)
{
int v6; // [xsp+20h] [xbp+20h]
int ret; // [xsp+24h] [xbp+24h]
const char *filename; // [xsp+28h] [xbp+28h]
const char *a2; // [xsp+30h] [xbp+30h]
const char *file; // [xsp+38h] [xbp+38h]
int toStdout; // [xsp+44h] [xbp+44h]
int disableVerify; // [xsp+48h] [xbp+48h]
int mode; // [xsp+4Ch] [xbp+4Ch]
mode = -1;
disableVerify = 0;
toStdout = 0;
file = 0LL;
a2 = 0LL;
filename = 0LL;
OPENSSL_add_all_algorithms_noconf();
while ( 1 )
{
v6 = getopt(argc, (char *const *)argv, "-v:x:w:c:V:Io:s:m:t:p:f:S:rn");
if ( v6 == -1 )
break;
switch ( v6 )
{
case 'I':
mode = 6;
continue;
case 'S':
a2 = optarg;
continue;
case 'V':
mode = 5;
filename = optarg;
continue;
case 'c':
mode = 4;
filename = optarg;
continue;
case 'f':
if ( mode != 2 && mode != 4 )
continue;
if ( file )
{
fwrite("Multiple files specified\n", 1u, 0x19u, stderr);
return -22;
}
file = optarg;
break;
case 'n':
toStdout = 1;
continue;
case 'r':
disableVerify = 1;
continue;
case 'v':
mode = 1;
filename = optarg;
continue;
case 'w':
mode = 3;
filename = optarg;
continue;
case 'x':
mode = 2;
filename = optarg;
continue;
default:
error_exit();
}
}
switch ( mode )
{
case 1:
ret = command_verify_image(filename);
break;
case 2:
ret = command_extract_file(filename, a2, disableVerify, file, toStdout);
break;
case 3:
ret = command_mtd_flash(filename, disableVerify);
break;
case 4:
ret = command_list_files(filename, file);
break;
case 5:
ret = command_get_image_version(filename);
break;
case 6:
ret = command_get_ssh_key();
break;
default:
error_exit();
}
return ret;
}
//----- (0000000000401BAC) ----------------------------------------------------
int for_each_file(FILE *f, int (*callback)(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata), void *userData)
{
MiRomFile filehdr; // [xsp+30h] [xbp+30h] BYREF
MiRomHdr buf; // [xsp+60h] [xbp+60h] BYREF
size_t readret; // [xsp+90h] [xbp+90h]
unsigned int off; // [xsp+94h] [xbp+94h]
int ret; // [xsp+98h] [xbp+98h]
int fileid; // [xsp+9Ch] [xbp+9Ch]
ret = 0;
off = 0;
if ( !callback )
return -1;
rewind(f);
readret = fread(&buf, 1u, 0x30u, f);
if ( ferror(f) )
return 0xFFFFFFFB;
for ( fileid = 0; fileid <= 7; ++fileid )
{
off = buf.fileOffs[fileid];
if ( !off )
break;
ret = fseek(f, off, 0);
if ( ret )
break;
readret = fread(&filehdr, 1u, 0x30u, f);
if ( readret != 48 )
return -5;
ret = callback(&buf, (unsigned char)fileid, &filehdr, f, userData);
if ( ret )
return ret;
}
return ret;
}
//----- (0000000000401D08) ----------------------------------------------------
int load_image(FILE *f, int disableVerify)
{
unsigned char sigbuf[4096]; // [xsp+20h] [xbp+20h] BYREF
size_t sigsize[4]; // [xsp+1020h] [xbp+1020h] BYREF
MiRomHdr hdr; // [xsp+1030h] [xbp+1030h] BYREF
uint32_t crcret; // [xsp+1064h] [xbp+1064h]
short model_idx; // [xsp+106Ah] [xbp+106Ah]
size_t ret; // [xsp+106Ch] [xbp+106Ch]
size_t len; // [xsp+1070h] [xbp+1070h]
uint16_t v12; // [xsp+1076h] [xbp+1076h]
unsigned int isSsh; // [xsp+1078h] [xbp+1078h]
int verify_ret; // [xsp+107Ch] [xbp+107Ch]
memset(sigbuf, 0, sizeof(sigbuf));
v12 = -1;
verify_ret = 0;
len = 0;
isSsh = 0;
rewind(f);
ret = fread(&hdr, 1u, 0x30u, f);
if ( ret != 0x30 )
return 0xFFFFFFFB;
if ( hdr.magic != '1RDH' )
{
fwrite("Invalid image block\n", 1u, 0x14u, stderr);
return -22;
}
model_idx = hdr.model;
if ( util_check_model_idx(hdr.model) )
{
fwrite("Model mismatch\n", 1u, 0xFu, stderr);
return -22;
}
len = util_get_file_len(f);
rewind(f);
crcret = calc_crc32(f, 12, len - 12);
if ( hdr.crc32sum != crcret )
{
fwrite("Image checksum is invalid\n", 1u, 0x1Au, stderr);
return -22;
}
v12 = hdr.romType;
if ( hdr.romType == 12 )
isSsh = 1;
if ( disableVerify )
{
verify_ret = 0;
}
else
{
fseek(f, hdr.rsaLen, SEEK_SET);
ret = fread(sigsize, 1u, 0x10u, f);
if ( ret != 16 )
return -5;
ret = fread(sigbuf, 1u, sigsize[0], f);
if ( sigsize[0] != ret )
return -5;
rewind(f);
verify_ret = j_verify_rsa(f, 12u, hdr.rsaLen - 12, sigbuf, sigsize[0], isSsh);
}
if ( !verify_ret )
return 0;
fwrite("Image verify failed, not formal image\n", 1u, 0x26u, stderr);
return -22;
}
//----- (0000000000401FBC) ----------------------------------------------------
int command_verify_image(const char *filename)
{
FILE *stream; // [xsp+20h] [xbp+20h]
int v4; // [xsp+2Ch] [xbp+2Ch]
stream = fopen(filename, "r");
if ( stream )
{
v4 = load_image(stream, 0);
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", filename);
v4 = -2;
}
return v4;
}
//----- (0000000000402048) ----------------------------------------------------
int extract_normal_rom_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
int64_t v5; // x0
size_t v9; // [xsp+4Ch] [xbp+4Ch]
void *ptr; // [xsp+50h] [xbp+50h]
char *fname; // [xsp+58h] [xbp+58h]
int v13; // [xsp+6Ch] [xbp+6Ch]
size_t chunksize; // [xsp+70h] [xbp+70h]
uint32_t filesize; // [xsp+74h] [xbp+74h]
FILE *s; // [xsp+78h] [xbp+78h]
v13 = 0;
fname = *(char **)userdata;
if ( fildhdr->filesize <= 7 || fildhdr->magic != 0xBABE )
return 0;
if ( fname && strcmp(fildhdr->name, fname) )
return 0;
if ( *((uint32_t *)userdata + 2) )
{
s = (FILE *)stdout;
}
else
{
s = fopen(fildhdr->name, "w");
if ( !s )
{
fprintf(stderr, "can not open \"%s\" for writing\n", fildhdr->name);
return -5;
}
}
ptr = malloc(0x10000u);
if ( ptr )
{
filesize = fildhdr->filesize;
while ( filesize )
{
v9 = fread(ptr, 1u, 0x10000u, f);
if ( filesize < v9 )
{
chunksize = filesize;
v5 = fwrite(ptr, filesize, 1u, s);
}
else
{
chunksize = v9;
v5 = fwrite(ptr, v9, 1u, s);
}
if ( !v5 || fflush(s) )
{
fwrite("fwrite failed\n", 1u, 0xEu, stderr);
v13 = -5;
goto LABEL_26;
}
filesize -= chunksize;
if ( feof(f) && filesize )
{
fwrite("File too short while required write length too long\n", 1u, 0x34u, stderr);
v13 = -5;
goto LABEL_26;
}
}
if ( fname )
v13 = 1;
LABEL_26:
free(ptr);
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
v13 = -12;
}
if ( !*((uint32_t *)userdata + 2) )
fclose(s);
return v13;
}
// 414DC8: using guessed type int64_t stdout;
//----- (00000000004022F8) ----------------------------------------------------
int command_extract_file(const char *filename, const char *sshFile, int disableVerify, const char *fname, int outputToFile)
{
void *v10[2]; // [xsp+38h] [xbp+38h] BYREF
MiRomHdr hdr; // [xsp+48h] [xbp+48h] BYREF
size_t v12; // [xsp+78h] [xbp+78h]
uint16_t v13; // [xsp+7Eh] [xbp+7Eh]
FILE *stream; // [xsp+80h] [xbp+80h]
int ret; // [xsp+8Ch] [xbp+8Ch]
ret = 0;
v13 = 0;
v10[1] = (void *)outputToFile;
v10[0] = fname;
stream = fopen(filename, "r");
if ( stream )
{
ret = load_image(stream, disableVerify);
if ( !ret )
{
rewind(stream);
v12 = fread(&hdr, 1u, 0x30u, stream);
if ( v12 == 48 )
{
v13 = hdr.romType;
if ( hdr.romType == 12 )
ret = for_each_file(stream, extract_ssh_rom_callback, (void *)sshFile);
else
ret = for_each_file(stream, extract_normal_rom_callback, v10);
if ( fname )
{
if ( ret <= 0 )
{
if ( !ret )
ret = -2;
}
else
{
ret = 0;
}
}
}
else
{
ret = -5;
}
}
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", filename);
ret = -2;
}
return ret;
}
//----- (0000000000402484) ----------------------------------------------------
int flash_mtd_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
unsigned int v8; // [xsp+44h] [xbp+44h]
void *buf; // [xsp+48h] [xbp+48h]
int fd; // [xsp+50h] [xbp+50h]
int v11; // [xsp+54h] [xbp+54h]
unsigned int size; // [xsp+58h] [xbp+58h]
unsigned int filesize; // [xsp+5Ch] [xbp+5Ch]
v11 = 0;
if ( fildhdr->filesize <= 7 || fildhdr->magic != 0xBABE )
return v11;
if ( fildhdr->mtdid == 0xFFFF )
{
printf("Skip offset[%hhu]\n", (unsigned char)fileid);
}
else
{
fd = open_and_erase_mtd(fildhdr->mtdid);
buf = malloc(0x10000u);
if ( buf )
{
filesize = fildhdr->filesize;
while ( filesize )
{
v8 = fread(buf, 1u, 0x10000u, f);
if ( filesize < v8 )
{
size = filesize;
write_buf(fd, buf, filesize);
}
else
{
size = v8;
write_buf(fd, buf, v8);
}
filesize -= size;
if ( feof(f) && filesize )
{
fwrite("File too short while required write length too long\n", 1u, 0x34u, stderr);
free(buf);
v11 = -5;
break;
}
}
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
v11 = -12;
}
close(fd);
}
return v11;
}
//----- (0000000000402628) ----------------------------------------------------
int command_mtd_flash(const char *filename, int needVerify)
{
FILE *stream; // [xsp+20h] [xbp+20h]
int v6; // [xsp+2Ch] [xbp+2Ch]
stream = fopen(filename, "r");
if ( stream )
{
v6 = load_image(stream, needVerify);
if ( !v6 )
{
system("nvram set flashing=1");
system("nvram commit");
v6 = for_each_file(stream, flash_mtd_callback, 0LL);
if ( !v6 )
{
system("nvram unset flashing");
system("nvram commit");
fwrite("system will reboot\n", 1u, 0x13u, stderr);
reboot(0x1234567);
}
}
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", filename);
v6 = -2;
}
return v6;
}
//----- (0000000000402754) ----------------------------------------------------
int dump_file_desc(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
if ( !(uint8_t)fileid )
{
if ( hdr->magic != '1RDH' )
{
printf("Invalid MAGIC 0x%x, 0x%x\n", hdr->magic, 827475016LL);
return 0xFFFFFFEA;
}
printf("version %d, file type: %d\n", hdr->model, hdr->romType);
}
if ( userdata && strcmp(fildhdr->name, (const char *)userdata) )
return 0;
printf("Segment %d: Offset 0x%x\n", (unsigned char)fileid, hdr->fileOffs[(unsigned char)fileid]);
if ( fildhdr->magic == 0xBABE )
{
printf("Filename %s\n", fildhdr->name);
printf("Flash addr = 0x%x, length = 0x%x, partition = %d\n", fildhdr->flashaddr, fildhdr->filesize, fildhdr->mtdid);
if ( userdata )
return 1;
}
else
{
printf("Invalid sub MAGIC,magic:0x%x le_mag:0x%x rsvd0:0x%x\n", fildhdr->magic, fildhdr->magic, fildhdr->rsvd0);
}
return 0;
}
//----- (00000000004028E0) ----------------------------------------------------
int command_list_files(const char *image, const char *a2)
{
FILE *stream; // [xsp+20h] [xbp+20h]
int v6; // [xsp+2Ch] [xbp+2Ch]
stream = fopen(image, "r");
if ( stream )
{
v6 = for_each_file(stream, dump_file_desc, (void *)a2);
if ( a2 )
{
if ( v6 <= 0 )
{
if ( !v6 )
v6 = -2;
}
else
{
v6 = 0;
}
}
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", image);
v6 = -2;
}
return v6;
}
//----- (00000000004029B0) ----------------------------------------------------
int get_version_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
char *ptr; // [xsp+50h] [xbp+50h]
uint32_t size; // [xsp+58h] [xbp+58h]
int size_4; // [xsp+5Ch] [xbp+5Ch]
size_4 = 0;
if ( fildhdr->filesize <= 7 || fildhdr->magic != 47806 )
return 0;
size = fildhdr->filesize;
if ( strcmp(fildhdr->name, "xiaoqiang_version") )
return size_4;
if ( malloc(0x10000u) && (ptr = (char *)malloc(size)) != 0LL )
{
if ( fread(ptr, 1u, size, f) == size )
{
printf("%s", ptr);
size_4 = 1;
}
else
{
size_4 = -5;
}
free(ptr);
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
size_4 = -12;
}
return size_4;
}
//----- (0000000000402B20) ----------------------------------------------------
int command_get_image_version(const char *a1)
{
FILE *stream; // [xsp+20h] [xbp+20h]
int v4; // [xsp+2Ch] [xbp+2Ch]
stream = fopen(a1, "r");
if ( stream )
{
v4 = for_each_file(stream, get_version_callback, 0LL);
if ( v4 <= 0 )
{
if ( !v4 )
v4 = -2;
}
else
{
v4 = 0;
}
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", a1);
v4 = -2;
}
return v4;
}
//----- (0000000000402BE0) ----------------------------------------------------
int command_get_ssh_key()
{
get_ssh_key();
return 0;
}
//----- (0000000000402C78) ----------------------------------------------------
unsigned int crc32_update(uint8_t *buf, int64_t size, unsigned int state)
{
while ( size )
{
state = crc32_table[(unsigned char)(*buf ^ state)] ^ (state >> 8);
--size;
++buf;
}
return state;
}
//----- (0000000000402CF4) ----------------------------------------------------
uint32_t calc_crc32(FILE *f, int start, unsigned int size)
{
uint32_t result; // w0
unsigned int v6; // [xsp+24h] [xbp+24h]
uint8_t *ptr; // [xsp+28h] [xbp+28h]
unsigned int chunk_size; // [xsp+34h] [xbp+34h]
unsigned int crc; // [xsp+3Ch] [xbp+3Ch]
crc = -1;
ptr = malloc(0x10000u);
if ( ptr )
{
fseek(f, start, 0);
while ( size )
{
v6 = fread(ptr, 1u, 0x10000u, f);
if ( size < v6 )
chunk_size = size;
else
chunk_size = v6;
crc = crc32_update(ptr, chunk_size, crc);
size -= chunk_size;
if ( feof(f) && size )
{
fwrite("File too short while required CRC length too long\n", 1u, 0x32u, stderr);
return 1;
}
}
free(ptr);
rewind(f);
result = crc;
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
result = 1;
}
return result;
}
//----- (0000000000402E4C) ----------------------------------------------------
int64_t init_pkey(EVP_MD_CTX *ctx, RSA **pem, EVP_PKEY **ppkey, int isSsh)
{
int64_t result; // x0
const EVP_MD *algo; // x0
FILE *stream; // [xsp+38h] [xbp+38h]
Update to support off-device use
2020-06-13 14:33:52 +00:00
#ifdef ONDEVICE
Initial commit
2020-06-13 14:03:59 +00:00
if ( isSsh == 1 )
stream = fopen("/usr/share/xiaoqiang/public_ssh.pem", "rb");
else
stream = fopen("/usr/share/xiaoqiang/public.pem", "rb");
Update to support off-device use
2020-06-13 14:33:52 +00:00
#else
if ( isSsh == 1 )
stream = fopen("public_ssh.pem", "rb");
else
stream = fopen("public.pem", "rb");
#endif
Initial commit
2020-06-13 14:03:59 +00:00
if ( stream )
{
*pem = PEM_read_RSA_PUBKEY(stream, 0LL, 0LL, 0LL);
if ( *pem )
{
fclose(stream);
*ppkey = EVP_PKEY_new();
if ( *ppkey )
{
if ( EVP_PKEY_set1_RSA(*ppkey, *pem) == 1 )
{
EVP_MD_CTX_init(ctx);
algo = EVP_sha1();
if ( EVP_DigestInit_ex(ctx, algo, 0LL) == 1 )
{
result = 0LL;
}
else
{
fwrite("error EVP_VerfyInit_ex\n", 1u, 0x17u, stderr);
RSA_free(*pem);
EVP_PKEY_free(*ppkey);
result = 0xFFFFFFFFLL;
}
}
else
{
fwrite("error EVP_PKEY_st1_RSA\n", 1u, 0x17u, stderr);
RSA_free(*pem);
EVP_PKEY_free(*ppkey);
result = 0xFFFFFFFFLL;
}
}
else
{
fwrite("error EVP_PEKY_new\n", 1u, 0x13u, stderr);
RSA_free(*pem);
result = 0xFFFFFFFFLL;
}
}
else
{
fwrite("error PEM_read_RSAPublicKey\n", 1u, 0x1Cu, stderr);
fclose(stream);
result = 0xFFFFFFFFLL;
}
}
else
{
fwrite("error fopen public key \n", 1u, 0x18u, stderr);
result = 0xFFFFFFFFLL;
}
return result;
}
//----- (000000000040307C) ----------------------------------------------------
int j_verify_rsa(FILE *f, unsigned int start, unsigned int size, const unsigned char *sigbuf, unsigned int siglen, unsigned int isSsh)
{
return verify_rsa(f, start, size, sigbuf, siglen, isSsh);
}
//----- (00000000004030C0) ----------------------------------------------------
int verify_rsa(FILE *f, int start, unsigned int size, const unsigned char *sigbuf, unsigned int siglen, unsigned int isSsh)
{
int result; // w0
EVP_PKEY *pkey; // [xsp+30h] [xbp+30h] BYREF
RSA *pem; // [xsp+38h] [xbp+38h] BYREF
fix compile error for openssl 1.1
2020-06-17 06:13:58 +00:00
EVP_MD_CTX* ctx; // [xsp+40h] [xbp+40h] BYREF
Initial commit
2020-06-13 14:03:59 +00:00
unsigned int v15; // [xsp+74h] [xbp+74h]
void *buf; // [xsp+78h] [xbp+78h]
size_t cnt; // [xsp+84h] [xbp+84h]
unsigned int v18; // [xsp+88h] [xbp+88h]
int v19; // [xsp+8Ch] [xbp+8Ch]
fix compile error for openssl 1.1
2020-06-17 06:13:58 +00:00
ctx=EVP_MD_CTX_new();
Initial commit
2020-06-13 14:03:59 +00:00
v18 = size;
cnt = 0;
pkey = 0LL;
buf = malloc(0x10000u);
if ( buf )
{
fix compile error for openssl 1.1
2020-06-17 06:13:58 +00:00
v19 = init_pkey(ctx, &pem, &pkey, isSsh);
Initial commit
2020-06-13 14:03:59 +00:00
if ( v19 )
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
result = 1;
}
else
{
fseek(f, start, 0);
while ( v18 )
{
v15 = fread(buf, 1u, 0x10000u, f);
if ( v18 < v15 )
cnt = v18;
else
cnt = v15;
fix compile error for openssl 1.1
2020-06-17 06:13:58 +00:00
if ( EVP_DigestUpdate(ctx, buf, cnt) != 1 )// EVP_VerifyUpdate
Initial commit
2020-06-13 14:03:59 +00:00
{
fwrite("error EVP_VerifyUpdate\n", 1u, 0x17u, stderr);
v19 = 1;
goto finish;
}
v18 -= cnt;
if ( feof(f) && v18 )
{
fwrite("File too short while required RSA length too long\n", 1u, 0x32u, stderr);
v19 = 1;
goto finish;
}
}
fix compile error for openssl 1.1
2020-06-17 06:13:58 +00:00
if ( EVP_VerifyFinal(ctx, sigbuf, siglen, pkey) == 1 )
Initial commit
2020-06-13 14:03:59 +00:00
{
v19 = 0;
}
else
{
fwrite("error EVP_VerifyFinal\n", 1u, 0x16u, stderr);
v19 = 1;
}
finish:
rewind(f);
free(buf);
RSA_free(pem);
EVP_PKEY_free(pkey);
fix compile error for openssl 1.1
2020-06-17 06:13:58 +00:00
EVP_MD_CTX_free(ctx);
Initial commit
2020-06-13 14:03:59 +00:00
result = v19;
}
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
result = 1;
}
return result;
}
//----- (0000000000403318) ----------------------------------------------------
int64_t write_buf(int fd, void *buf, unsigned int size)
{
signed int i; // [xsp+2Ch] [xbp+2Ch]
for ( i = 0; i < (int)size; i += write(fd, (char *)buf + i, size - i) )
;
return size;
}
//----- (0000000000403394) ----------------------------------------------------
int open_and_erase_mtd(unsigned int mtdId)
{
char v3[16]; // [xsp+20h] [xbp+20h] BYREF
unsigned int i; // [xsp+30h] [xbp+30h] BYREF
unsigned int v5; // [xsp+34h] [xbp+34h]
char v6[8]; // [xsp+38h] [xbp+38h] BYREF
unsigned int v7; // [xsp+40h] [xbp+40h]
unsigned int v8; // [xsp+44h] [xbp+44h]
int fd; // [xsp+5Ch] [xbp+5Ch]
memset(v3, 0, sizeof(v3));
sprintf(v3, "/dev/mtd%d", mtdId);
printf("target mtd %s\n", v3);
fd = open(v3, 2);
ioctl(fd, 0x80204D01uLL, v6);
printf("MTD Type: %x\nMTD total size: %x bytes\nMTD erase size: %x bytes\n", (unsigned char)v6[0], v7, v8);
v5 = v8;
printf("Beging Eraseing Block %#x\n", i);
for ( i = 0; i < v7; i += v5 )
{
ioctl(fd, 0x40084D06uLL, &i);
ioctl(fd, 0x40084D02uLL, &i);
}
lseek(fd, 0LL, 0);
puts("End...");
return fd;
}
//----- (00000000004034BC) ----------------------------------------------------
int64_t calcMd5(unsigned char *a1, const char *a2)
{
size_t v2; // w0
MD5_CTX v6; // [xsp+20h] [xbp+20h] BYREF
if ( MD5_Init(&v6) )
{
v2 = strlen(a2);
if ( MD5_Update(&v6, a2, v2) )
{
if ( MD5_Final(a1, &v6) )
return 0LL;
puts("MD5_Final error");
}
else
{
puts("MD5_Update error");
}
}
else
{
puts("MD5_Init error");
}
return 0xFFFFFFFFLL;
}
//----- (000000000040355C) ----------------------------------------------------
int64_t transpostGuid(uint8_t *a1, char *outbuf)
{
char *v2; // x0
int64_t result; // x0
char mat[8][32]; // [xsp+28h] [xbp+28h] BYREF
size_t n; // [xsp+12Ch] [xbp+12Ch]
char *curRow; // [xsp+130h] [xbp+130h]
int rowI; // [xsp+138h] [xbp+138h]
unsigned int row; // [xsp+13Ch] [xbp+13Ch]
Update to support off-device use
2020-06-13 14:33:52 +00:00
Initial commit
2020-06-13 14:03:59 +00:00
row = 0;
rowI = 0;
n = 0;
memset(mat, 0, sizeof(mat));
while ( *a1 )
{
if ( *a1 == '-' )
{
Update to support off-device use
2020-06-13 14:33:52 +00:00
mat[row++][rowI] = 0;
Initial commit
2020-06-13 14:03:59 +00:00
rowI = 0;
}
else
{
Update to support off-device use
2020-06-13 14:33:52 +00:00
mat[row][rowI++] = *a1;
Initial commit
2020-06-13 14:03:59 +00:00
}
++a1;
}
Update to support off-device use
2020-06-13 14:33:52 +00:00
mat[row][rowI] = 0;
Initial commit
2020-06-13 14:03:59 +00:00
curRow = outbuf;
while ( 1 )
{
result = row;
if ( (row & 0x80000000) != 0 )
break;
n = strlen(mat[row]);
strncpy(curRow, mat[row], n);
curRow += (int)n;
if ( row )
{
v2 = curRow++;
*v2 = '-';
}
else
{
*curRow = 0;
}
--row;
}
return result;
}
//----- (00000000004036EC) ----------------------------------------------------
int64_t get_ssh_key()
{
char magic[100]; // [xsp+EA8h] [xbp+18h] BYREF
char snStr[100]; // [xsp+F10h] [xbp+80h] BYREF
char Sn[100]; // [xsp+F78h] [xbp+E8h] BYREF
unsigned char md5Output[16]; // [xsp+FE0h] [xbp+150h] BYREF
FILE *stream; // [xsp+FF0h] [xbp+160h]
int i; // [xsp+FFCh] [xbp+16Ch]
memset(md5Output, 0, 16);
memset(Sn, 0, 100);
memset(snStr, 0, 100);
memset(magic, 0, 100);
Update to support off-device use
2020-06-13 14:33:52 +00:00
#ifdef ONDEVICE
Initial commit
2020-06-13 14:03:59 +00:00
stream = popen("nvram get SN", "r");
Update to support off-device use
2020-06-13 14:33:52 +00:00
#else
stream = fopen("SN.txt", "r");
#endif
Initial commit
2020-06-13 14:03:59 +00:00
if ( !stream )
return puts("Failed to run command");
Update to support off-device use
2020-06-13 14:33:52 +00:00
Initial commit
2020-06-13 14:03:59 +00:00
while ( fgets(Sn, 100, stream) )
sscanf(Sn, "%s", snStr);
Update to support off-device use
2020-06-13 14:33:52 +00:00
#ifdef ONDEVICE
Initial commit
2020-06-13 14:03:59 +00:00
pclose(stream);
Update to support off-device use
2020-06-13 14:33:52 +00:00
#else
fclose(stream);
#endif
Initial commit
2020-06-13 14:03:59 +00:00
transpostGuid("d44fb0960aa0-a5e6-4a30-250f-6d2df50a", magic);
sprintf(Sn, "%s%s", snStr, magic);
calcMd5(md5Output, Sn);
memset(Sn, 0, sizeof(Sn));
for ( i = 0; i <= 3; ++i )
printf("%x%x", (md5Output[i] >> 4) & 0xF, md5Output[i] & 0xF);
return puts(Sn);
}
//----- (00000000004038A4) ----------------------------------------------------
int extract_ssh_rom_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
return 1;
}
// nfuncs=134 queued=28 decompiled=28 lumina nreq=0 worse=0 better=0
// ALL OK, 28 function(s) have been successfully decompiled
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