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VIsoFile.cpp
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VIsoFile.cpp
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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <dirent.h>
#include <ctype.h>
#include <time.h>
#include "common.h"
#include "VIsoFile.h"
#ifdef WIN32
#include "dirent2.h"
extern "C" int alphasort(const dirent2 **_a, const dirent2 **_b);
extern "C" int scandir(const char *dirname, struct dirent2 ***ret_namelist,
int (*select)(const struct dirent2 *),
int (*compar)(const struct dirent2 **, const struct dirent2 **));
#else
#define dirent2 dirent
#endif
#ifndef MAX_PATH
#define MAX_PATH 2048
#endif
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MULTIEXTENT_PART_SIZE 0xFFFFF800
#define TEMP_BUF_SIZE (4*1024*1024)
#define FS_BUF_SIZE (32*1024*1024)
static inline uint32_t bytesToSectors(off64_t size)
{
return ((size+0x7ffULL)&~0x7ffULL) / 0x800ULL;
}
static char *dupString(const char *str)
{
char *ret = new char[strlen(str)+1];
strcpy(ret, str);
return ret;
}
static char *strncpy_upper(char *s1, const char *s2, size_t n)
{
strncpy(s1, s2, n);
for (size_t i = 0; i < n; i++)
{
if (s1[i] == 0)
break;
if (s1[i] >= 'a' && s1[i] <= 'z')
{
s1[i] = s1[i] - ('a'-'A');
}
}
return s1;
}
static char *createPath(char *dir, char *file)
{
char *ret = new char[strlen(dir) + strlen(file) + 2];
sprintf(ret, "%s/%s", dir, file);
return ret;
}
static bool getFileSizeAndProcessMultipart(char *file, off64_t *size)
{
file_stat_t statbuf;
if (stat_file(file, &statbuf) < 0)
return false;
*size = statbuf.file_size;
char *p = strrchr(file, '.');
if (!p || strcmp(p+1, "66600") != 0)
return true;
off64_t prev_size;
for (int i = 1; ; i++)
{
p[4] = '0' + (i/10);
p[5] = '0' + (i%10);
if (stat_file(file, &statbuf) < 0)
break;
*size += statbuf.file_size;
if (i > 1)
{
if (prev_size&0x7FF)
{
fprintf(stderr, "666XX file must be multiple of sector, except last fragment. (file=%s)\n", file);
}
}
prev_size = statbuf.file_size;
}
*p = 0;
return true;
}
static void genIso9660Time(time_t t, Iso9660DirectoryRecord *record)
{
struct tm *timeinfo = localtime(&t);
record->year = timeinfo->tm_year;
record->month = timeinfo->tm_mon+1;
record->day = timeinfo->tm_mday;
record->hour = timeinfo->tm_hour;
record->minute = timeinfo->tm_min;
record->second = timeinfo->tm_sec;
}
static void genIso9660TimePvd(time_t t, char *volumeTime)
{
struct tm *timeinfo = localtime(&t);
int year = timeinfo->tm_year + 1900;
int month = timeinfo->tm_mon + 1;
volumeTime[0] = (year/1000);
volumeTime[1] = (year - (volumeTime[0]*1000)) / 100;
volumeTime[2] = (year - (volumeTime[0]*1000) - (volumeTime[1]*100)) / 10;
volumeTime[3] = year % 10;
volumeTime[4] = (month >= 10) ? 1 : 0;
volumeTime[5] = month%10;
volumeTime[6] = timeinfo->tm_mday / 10;
volumeTime[7] = timeinfo->tm_mday % 10;
volumeTime[8] = timeinfo->tm_hour / 10;
volumeTime[9] = timeinfo->tm_hour % 10;
volumeTime[10] = timeinfo->tm_min / 10;
volumeTime[11] = timeinfo->tm_min % 10;
volumeTime[12] = timeinfo->tm_sec / 10;
volumeTime[13] = timeinfo->tm_sec % 10;
volumeTime[14] = volumeTime[15] = volumeTime[16] = 0;
for (int i = 0; i < 16; i++)
volumeTime[i] += '0';
}
#ifdef WIN32
static int get_ucs2_from_utf8(const unsigned char *input, const unsigned char **end_ptr)
{
// We are not really getting utf8, but 8-bits local charset. We only support ansi in win32, atm
*end_ptr = input;
if (input[0] == 0)
return -1;
if (input[0] < 0x80)
{
*end_ptr = input + 1;
return input[0];
}
fprintf(stderr, "Fatal error: windows version of server currently doesn't support non-ansi characters.\n, character giving error: 0x%02x\n", *input);
return -1;
}
#else
static int get_ucs2_from_utf8(const unsigned char * input, const unsigned char ** end_ptr)
{
*end_ptr = input;
if (input[0] == 0)
return -1;
if (input[0] < 0x80)
{
*end_ptr = input + 1;
return input[0];
}
if ((input[0] & 0xE0) == 0xE0)
{
if (input[1] == 0 || input[2] == 0)
return -1;
*end_ptr = input + 3;
return (input[0] & 0x0F)<<12 | (input[1] & 0x3F)<<6 | (input[2] & 0x3F);
}
if ((input[0] & 0xC0) == 0xC0)
{
if (input[1] == 0)
return -1;
*end_ptr = input + 2;
return (input[0] & 0x1F)<<6 | (input[1] & 0x3F);
}
return -1;
}
#endif
static int utf8_to_ucs2(const unsigned char *utf8, uint16_t *ucs2, uint16_t maxLength)
{
const unsigned char *p = utf8;
int length = 0;
while (*p && length < maxLength)
{
int ch = get_ucs2_from_utf8(p, &p);
if (ch < 0)
break;
ucs2[length++] = BE16(ch&0xFFFF);
}
return length;
}
#ifdef WIN32
#include <windows.h>
#include <wincrypt.h>
static void get_rand(void *bfr, uint32_t size)
{
HCRYPTPROV hProv;
if (size == 0)
return;
if (!CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
fprintf(stderr, "Error aquiring crypt context.\n");
if (!CryptGenRandom(hProv, size, (BYTE *)bfr))
fprintf(stderr, "Errorgetting random numbers.\n");
CryptReleaseContext(hProv, 0);
}
#else
static void get_rand(void *bfr, uint32_t size)
{
FILE *fp;
if (size == 0)
return;
fp = fopen("/dev/urandom", "r");
if (fp == NULL)
fprintf(stderr, "Error aquiring crypt context.\n");
if (fread(bfr, size, 1, fp) != 1)
fprintf(stderr, "Error getting random numbers.\n");
fclose(fp);
}
#endif
static int parse_param_sfo(file_t fd, const char *field, char *title_name)
{
if (FD_OK(fd))
{
unsigned len, pos, str;
unsigned char *mem = NULL;
len = seek_file(fd, 0, SEEK_END);
mem = (unsigned char *) malloc(len + 16);
if (!mem)
{
close_file(fd);
return -2;
}
memset(mem, 0, len + 16);
seek_file(fd, 0, SEEK_SET);
read_file(fd, mem, len);
close_file(fd);
str = (mem[8] + (mem[9] << 8));
pos = (mem[0xc] + (mem[0xd] << 8));
int indx = 0;
while (str < len)
{
if (mem[str] == 0)
break;
if (!strcmp((char *) &mem[str], field))
{
strncpy(title_name, (char *) &mem[pos], 63);
free(mem);
return 0;
}
while (mem[str])
str++;
str++;
pos += (mem[0x1c + indx] + (mem[0x1d + indx] << 8));
indx += 16;
}
if (mem)
free(mem);
}
return -1;
}
static bool get_title_id(const char *dir, char *title_id)
{
char sfo_path[MAX_PATH];
file_t fd;
snprintf(sfo_path, sizeof(sfo_path)-1, "%s/PS3_GAME/PARAM.SFO", dir);
fd = open_file(sfo_path, O_RDONLY);
if (!FD_OK(fd))
{
fprintf(stderr, "Cannot find %s\n", sfo_path);
return false;
}
if (parse_param_sfo(fd, "TITLE_ID", title_id) != 0)
{
fprintf(stderr, "TITLE_ID not found\n");
return false;
}
return true;
}
static int select_directories(const struct dirent2 *entry)
{
if ((strcmp(entry->d_name, ".") == 0) || (strcmp(entry->d_name, "..") == 0))
{
return 0;
}
else
{
if (entry->d_type == DT_DIR)
return 1;
}
return 0;
}
static int select_files(const struct dirent2 *entry)
{
if ((strcmp(entry->d_name, ".") == 0) || (strcmp(entry->d_name, "..") == 0))
{
return 0;
}
else
{
if (entry->d_type != DT_DIR)
return 1;
}
return 0;
}
VIsoFile::VIsoFile(bool ps3Mode)
{
this->ps3Mode = ps3Mode;
fsBuf = NULL;
tempBuf = NULL;
pathTableL = NULL;
pathTableM = NULL;
pathTableJolietL = NULL;
pathTableJolietM = NULL;
rootList = NULL;
vFilePtr = 0;
filesSizeSectors = 0;
dirsSizeSectors = 0;
dirsSizeSectorsJoliet = 0;
pathTableSize = 0;
pathTableSizeJoliet = 0;
totalSize = 0;
padAreaStart = 0;
padAreaSize = 0;
}
VIsoFile::~VIsoFile()
{
DPRINTF("VISO file destructor\n");
close();
reset();
}
void VIsoFile::reset(void)
{
if (fsBuf)
{
delete[] fsBuf;
fsBuf = NULL;
}
if (tempBuf)
{
delete[] tempBuf;
tempBuf = NULL;
}
if (pathTableL)
{
delete[] pathTableL;
pathTableL = NULL;
}
if (pathTableM)
{
delete[] pathTableM;
pathTableM = NULL;
}
if (pathTableJolietL)
{
delete[] pathTableJolietL;
pathTableJolietL = NULL;
}
if(pathTableJolietM)
{
delete[] pathTableJolietM;
pathTableJolietM = NULL;
}
while (rootList)
{
DirList *next = rootList->next;
if (rootList->path)
delete[] rootList->path;
if (rootList->content)
delete[] rootList->content;
if (rootList->contentJoliet)
delete[] rootList->contentJoliet;
FileList *fileList = rootList->fileList;
while (fileList)
{
FileList *nextFile = fileList->next;
if (fileList->path)
delete[] fileList->path;
delete fileList;
fileList = nextFile;
}
delete rootList;
rootList = next;
}
vFilePtr = 0;
filesSizeSectors = 0;
dirsSizeSectors = 0;
dirsSizeSectorsJoliet = 0;
pathTableSize = 0;
pathTableSizeJoliet = 0;
totalSize = 0;
padAreaStart = 0;
padAreaSize = 0;
}
DirList *VIsoFile::getParent(DirList *dirList)
{
DirList *tempList = rootList;
char *parentPath;
if (dirList == rootList)
return dirList;
parentPath = dupString(dirList->path);
*(strrchr(parentPath, '/')) = 0;
while (tempList)
{
if (strcmp(parentPath, tempList->path) == 0)
{
delete[] parentPath;
return tempList;
}
tempList = tempList->next;
}
delete[] parentPath;
return dirList;
}
bool VIsoFile::isDirectChild(DirList *dir, DirList *parentCheck)
{
if (strcmp(dir->path, parentCheck->path) == 0)
return false;
char *p = strstr(dir->path, parentCheck->path);
if (p != dir->path)
return false;
p += strlen(parentCheck->path) + 1;
if (strchr(p, '/'))
return false;
return true;
}
Iso9660DirectoryRecord *VIsoFile::findDirRecord(char *dirName, Iso9660DirectoryRecord *parentRecord, size_t size, bool joliet)
{
uint8_t *strCheck = new uint8_t[256];
uint8_t *buf, *p;
uint32_t pos = 0;
int strCheckSize;
memset(strCheck, 0, 256);
if (!joliet)
{
strncpy_upper((char *)strCheck, dirName, MAX_ISONAME-2);
strCheckSize = strlen((const char *)strCheck);
}
else
{
strCheckSize = utf8_to_ucs2((const unsigned char *)dirName, (uint16_t *)strCheck, MAX_ISODIR/2) * 2;
}
buf = p = (uint8_t *)parentRecord;
while ((p < (buf+size)))
{
Iso9660DirectoryRecord *current = (Iso9660DirectoryRecord *)p;
if (current->len_dr == 0)
{
p += (0x800 - (pos&0x7ff));
pos += (0x800 - (pos&0x7ff));
if (p >= (buf+size))
break;
current = (Iso9660DirectoryRecord *)p;
if (current->len_dr == 0)
break;
}
if (current->len_fi == strCheckSize && memcmp(¤t->fi, strCheck, strCheckSize) == 0)
{
delete[] strCheck;
return current;
}
p += current->len_dr;
pos += current->len_dr;
}
//printf("%s not found (joliet=%d)!!!!!!!\n", dirName, joliet);
delete[] strCheck;
return NULL;
}
uint8_t *VIsoFile::buildPathTable(bool msb, bool joliet, size_t *retSize)
{
DirList *dirList;
uint8_t *p;
int i = 0;
memset(tempBuf, 0, tempBufSize);
p = tempBuf;
dirList = rootList;
while (dirList && i < 65536)
{
Iso9660PathTable *table = (Iso9660PathTable *)p;
Iso9660DirectoryRecord *record;
uint16_t parentIdx;
record = (Iso9660DirectoryRecord *)((joliet) ? dirList->contentJoliet : dirList->content);
if (dirList == rootList)
{
table->len_di = 1;
table->dirID = 0;
parentIdx = 1;
}
else
{
DirList *parent;
char *fileName = strrchr(dirList->path, '/')+1;
if (!joliet)
{
strncpy_upper(&table->dirID, fileName, MAX_ISODIR);
table->len_di = strlen(&table->dirID);
}
else
{
table->len_di = utf8_to_ucs2((const unsigned char *)fileName, (uint16_t *)&table->dirID, MAX_ISODIR/2) * 2;
}
parent = getParent(dirList);
parentIdx = (uint16_t)parent->idx+1;
}
if (msb)
{
table->dirLocation = record->msbStart;
table->parentDN = BE16(parentIdx);
}
else
{
table->dirLocation = record->lsbStart;
table->parentDN = LE16(parentIdx);
}
p = p+8+table->len_di;
if (table->len_di&1)
p++;
dirList = dirList->next;
i++;
}
*retSize = (p-tempBuf);
uint8_t *ret = new uint8_t[*retSize];
memcpy(ret, tempBuf, *retSize);
return ret;
}
bool VIsoFile::buildContent(DirList *dirList, bool joliet)
{
Iso9660DirectoryRecord *record, *parentRecord = NULL;
DirList *tempList, *parent;
uint8_t *p = tempBuf;
file_stat_t statbuf;
memset(tempBuf, 0, tempBufSize);
parent = getParent(dirList);
// . entry
record = (Iso9660DirectoryRecord *)p;
record->len_dr = 0x28;
record->lsbStart = (!joliet) ? LE32(dirsSizeSectors) : LE32(dirsSizeSectorsJoliet);
record->msbStart = (!joliet) ? BE32(dirsSizeSectors) : BE32(dirsSizeSectorsJoliet);
if (stat_file(dirList->path, &statbuf) < 0)
return false;
genIso9660Time(statbuf.mtime, record);
record->fileFlags = ISO_DIRECTORY;
record->lsbVolSetSeqNum = LE16(1);
record->msbVolSetSeqNum = BE16(1);
record->len_fi = 1;
p += 0x28;
// .. entry
record = (Iso9660DirectoryRecord *)p;
record->len_dr = 0x28;
if (parent != dirList)
{
parentRecord = (Iso9660DirectoryRecord *) ((joliet) ? parent->contentJoliet : parent->content);
record->lsbStart = parentRecord->lsbStart;
record->msbStart = parentRecord->msbStart;
record->lsbDataLength = parentRecord->lsbDataLength;
record->msbDataLength = parentRecord-> msbDataLength;
}
if (stat_file(parent->path, &statbuf) < 0)
return false;
genIso9660Time(statbuf.mtime, record);
record->fileFlags = ISO_DIRECTORY;
record->lsbVolSetSeqNum = LE16(1);
record->msbVolSetSeqNum = BE16(1);
record->len_fi = 1;
record->fi = 1;
p += 0x28;
// Files entries
FileList *fileList = dirList->fileList;
while (fileList)
{
unsigned int parts = 1;
uint32_t lba = fileList->rlba;
if (fileList->size > 0xFFFFFFFF)
{
parts = fileList->size / MULTIEXTENT_PART_SIZE;
if (fileList->size % MULTIEXTENT_PART_SIZE)
parts++;
}
for (unsigned int i = 0; i < parts; i++)
{
uint32_t offs;
record = (Iso9660DirectoryRecord *)malloc(2048);
memset(record, 0, 2048);
record->lsbStart = LE32(lba);
record->msbStart = BE32(lba);
if (!fileList->multipart)
{
if (stat_file(fileList->path, &statbuf) < 0)
{
free(record);
return false;
}
}
else
{
char *s = new char[strlen(fileList->path)+7];
sprintf(s, "%s.66600", fileList->path);
if (stat_file(s, &statbuf) < 0)
{
free(record);
delete[] s;
return false;
}
delete[] s;
}
genIso9660Time(statbuf.mtime, record);
if (parts == 1)
{
record->fileFlags = ISO_FILE;
record->lsbDataLength = LE32(fileList->size);
record->msbDataLength = BE32(fileList->size);
}
else
{
uint32_t size;
if (i == parts-1)
{
size = (fileList->size) - (i*MULTIEXTENT_PART_SIZE);
record->fileFlags = ISO_FILE;
}
else
{
size = MULTIEXTENT_PART_SIZE;
record->fileFlags = ISO_MULTIEXTENT;
lba += bytesToSectors(MULTIEXTENT_PART_SIZE);
}
record->lsbDataLength = LE32(size);
record->msbDataLength = BE32(size);
}
record->lsbVolSetSeqNum = LE16(1);
record->msbVolSetSeqNum = BE16(1);
char *fileName = strrchr(fileList->path, '/')+1;
if (!joliet)
{
strncpy_upper(&record->fi, fileName, MAX_ISONAME-2);
strcat(&record->fi, ";1");
record->len_fi = strlen(&record->fi);
}
else
{
char *s = new char[strlen(fileName)+3];
strcpy(s, fileName);
strcat(s, ";1");
record->len_fi = utf8_to_ucs2((const unsigned char *)s, (uint16_t *)&record->fi, MAX_ISONAME/2) * 2;
delete[] s;
}
record->len_dr = 0x27 + record->len_fi;
if (record->len_dr&1)
{
record->len_dr++;
}
offs = (p-tempBuf);
if ((offs/0x800) < ((offs+record->len_dr)/0x800))
{
offs = (offs+0x7ff)&~0x7ff;
p = (tempBuf+offs);
}
if ((p+record->len_dr) >= (tempBuf+tempBufSize))
{
free(record);
return false;
}
memcpy(p, record, record->len_dr);
p += record->len_dr;
free(record);
}
fileList = fileList->next;
}
tempList = dirList->next;
while (tempList)
{
if (isDirectChild(tempList, dirList))
{
uint32_t offs;
record = (Iso9660DirectoryRecord *)malloc(2048);
memset(record, 0, 2048);
if (stat_file(tempList->path, &statbuf) < 0)
{
free(record);
return false;
}
genIso9660Time(statbuf.mtime, record);
record->fileFlags = ISO_DIRECTORY;
record->lsbVolSetSeqNum = LE16(1);
record->msbVolSetSeqNum = BE16(1);
char *fileName = strrchr(tempList->path, '/')+1;
if (!joliet)
{
strncpy_upper(&record->fi, fileName, MAX_ISODIR);
record->len_fi = strlen(&record->fi);
}
else
{
record->len_fi = utf8_to_ucs2((const unsigned char *)fileName, (uint16_t *)&record->fi, MAX_ISODIR/2) * 2;
}
record->len_dr = 0x27 + record->len_fi;
if (record->len_dr&1)
{
record->len_dr++;
}
offs = (p-tempBuf);
if ((offs/0x800) < ((offs+record->len_dr)/0x800))
{
offs = (offs+0x7ff)&~0x7ff;
p = (tempBuf+offs);
}
if ((p+record->len_dr) >= (tempBuf+tempBufSize))
{
free(record);
return false;
}
memcpy(p, record, record->len_dr);
p += record->len_dr;
free(record);
}
tempList = tempList->next;
}
size_t size = (p-tempBuf);
size = (size+0x7ff)&~0x7ff;
p = new uint8_t[size];
memcpy(p, tempBuf, size);
record = (Iso9660DirectoryRecord *)p;
record->lsbDataLength = LE32(size);
record->msbDataLength = BE32(size);
if (dirList == parent)
{
parentRecord = (Iso9660DirectoryRecord *)(p+0x28);
parentRecord->lsbStart = record->lsbStart;
parentRecord->msbStart = record->msbStart;
parentRecord->lsbDataLength = record->lsbDataLength;
parentRecord->msbDataLength = record-> msbDataLength;
}
else
{
Iso9660DirectoryRecord *childRecord = findDirRecord(strrchr(dirList->path, '/')+1, parentRecord, (joliet) ? parent->contentJolietSize : parent->contentSize, joliet);
if (!childRecord)
{
delete[] p;
return false;
}
childRecord->lsbStart = record->lsbStart;
childRecord->msbStart = record->msbStart;
childRecord->lsbDataLength = record->lsbDataLength;
childRecord->msbDataLength = record->msbDataLength;
}
if (!joliet)
{
dirList->content = p;
dirList->contentSize = size;
dirsSizeSectors += bytesToSectors(size);
}
else
{
dirList->contentJoliet = p;
dirList->contentJolietSize = size;
dirsSizeSectorsJoliet += bytesToSectors(size);
}
return true;
}
void VIsoFile::fixDirLba(Iso9660DirectoryRecord *record, size_t size, uint32_t dirLba, uint32_t filesLba)
{
uint8_t *p, *buf;
uint32_t pos = 0;
buf = p = (uint8_t *)record;
while ((p < (buf+size)))
{
Iso9660DirectoryRecord *current = (Iso9660DirectoryRecord *)p;
if (current->len_dr == 0)
{
p += (0x800 - (pos&0x7ff));
pos += (0x800 - (pos&0x7ff));
if (p >= (buf+size))
break;
current = (Iso9660DirectoryRecord *)p;
if (current->len_dr == 0)
break;
}
if (current->fileFlags & ISO_DIRECTORY)
{
current->lsbStart = LE32(LE32(current->lsbStart)+dirLba);
current->msbStart = BE32(BE32(current->msbStart)+dirLba);
}
else
{
current->lsbStart = LE32(LE32(current->lsbStart)+filesLba);
current->msbStart = BE32(BE32(current->msbStart)+filesLba);
}
p += current->len_dr;
pos += current->len_dr;
}
}
void VIsoFile::fixPathTableLba(uint8_t *pathTable, size_t size, uint32_t dirLba, bool msb)
{
uint8_t *p = pathTable;
while ((p < (pathTable+size)))
{
Iso9660PathTable *table = (Iso9660PathTable *)p;
if (msb)
{
table->dirLocation = BE32(BE32(table->dirLocation)+dirLba);
}
else
{
table->dirLocation = LE32(LE32(table->dirLocation)+dirLba);
}
p = p+8+table->len_di;
if (table->len_di&1)
p++;
}
}
void VIsoFile::fixLba(uint32_t isoLba, uint32_t jolietLba, uint32_t filesLba)
{
DirList *dirList = rootList;
while (dirList)
{
fixDirLba((Iso9660DirectoryRecord *)dirList->content, dirList->contentSize, isoLba, filesLba);
fixDirLba((Iso9660DirectoryRecord *)dirList->contentJoliet, dirList->contentJolietSize, jolietLba, filesLba);
dirList = dirList->next;
}
fixPathTableLba(pathTableL, pathTableSize, isoLba, false);
fixPathTableLba(pathTableM, pathTableSize, isoLba, true);
fixPathTableLba(pathTableJolietL, pathTableSizeJoliet, jolietLba, false);
fixPathTableLba(pathTableJolietM, pathTableSizeJoliet, jolietLba, true);
}
bool VIsoFile::build(char *inDir)
{
DirList *dirList, *tail;
struct dirent2 **dirs;