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makerom: cleaned romfs_gen.c

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This commit is contained in:
jakcron
2015-09-15 22:28:49 +08:00
parent 3a9d4b700b
commit 4f47d71d9d
1 changed files with 44 additions and 69 deletions
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makerom/romfs_gen.c
+44 -69
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@@ -26,9 +26,7 @@ u32 CalcPathHash(u32 parent, fs_romfs_char* path, u32 start, u32 length);
int PrepareBuildRomFsBinary(ncch_settings *ncchset, romfs_buildctx *ctx)
{
// Input Path
//printf("Get input path\n");
/* Input Path */
const int CWD_MAX_LEN = 1024;
char *cwd = calloc(CWD_MAX_LEN,sizeof(char));
getcwd(cwd,CWD_MAX_LEN);
@@ -46,47 +44,33 @@ int PrepareBuildRomFsBinary(ncch_settings *ncchset, romfs_buildctx *ctx)
fs_path = dir;
#endif
// FS Structures
/* FS Structures */
void *filter_criteria = NULL;
//printf("calloc fs_raw\n");
fs_dir *fs_raw = calloc(1,sizeof(fs_dir));
//printf("calloc ctx->fs\n");
ctx->fs = calloc(1,sizeof(fs_dir));
//memdump(stdout,"ctx->fs: ",(u8*)ctx->fs,sizeof(fs_dir));
//printf("ctx->fs = 0x%x\n",ctx->fs);
// Import FS and process
//printf("open fs into fs_raw\n");
/* Import FS and process */
fs_OpenDir(fs_path,path,path_len,fs_raw);
//printf("filter fs_raw into ctx->fs\n");
FilterRomFS(fs_raw,ctx->fs,filter_criteria);
// free unfiltered FS
//fs_PrintDir(fs_raw,0);
//printf("free discarded file ptrs\n");
/* free unfiltered FS */
fs_FreeFiles(fs_raw); // All important FPs have been moved with FilterRomFS, so only un-wanted FPs are closed here
//printf("free structs in fs_raw\n");
fs_FreeDir(fs_raw);
//printf("free fs_raw\n");
free(fs_raw);
//printf("leave if no ROMFS needs to be made\n");
// If no wanted directory or file exists in root, don't make romfs
// a directory can be wanted if a wanted file exists somewhere under it
/* Abort romfs making, if no wanted files/directories were found */
if(ctx->fs->u_file == 0 && ctx->fs->u_dir == 0){
ctx->romfsSize = 0;
goto finish;
}
// Print Filtered FS
//printf("print filtered FS\n");
/* Print Filtered FS */
if(ncchset->options.verbose){
printf("[ROMFS] File System:\n");
fs_PrintDir(ctx->fs,0);
}
//printf("predict romfs size\n");
CalcRomfsSize(ctx);
finish:
@@ -96,13 +80,13 @@ finish:
int BuildRomFsBinary(romfs_buildctx *ctx)
{
// Decide IVFC Level Actual Offsets
/* Decide IVFC Level Actual Offsets */
ctx->level[0].offset = 0;
ctx->level[3].offset = ctx->level[0].offset + align(ctx->level[0].size, ROMFS_BLOCK_SIZE);
ctx->level[1].offset = ctx->level[3].offset + align(ctx->level[3].size, ROMFS_BLOCK_SIZE);
ctx->level[2].offset = ctx->level[1].offset + align(ctx->level[1].size, ROMFS_BLOCK_SIZE);
// Decide IVFC Level Logical Offsets
/* Decide IVFC Level Logical Offsets */
for(int i = 1; i < 4; i++){
if(i == 1)
ctx->level[i].logicalOffset = 0;
@@ -110,20 +94,20 @@ int BuildRomFsBinary(romfs_buildctx *ctx)
ctx->level[i].logicalOffset = align(ctx->level[i-1].logicalOffset + ctx->level[i-1].size,ROMFS_BLOCK_SIZE);
}
// Setup IVFC Level Ptrs
/* Setup IVFC Level Ptrs */
for(int i = 0; i < 4; i++){
ctx->level[i].pos = (ctx->output + ctx->level[i].offset);
if(i == 0)
ctx->level[i].pos += align(sizeof(ivfc_hdr),0x10);
}
// Build Romfs
/* Build Romfs */
ctx->romfsHdr = (romfs_infoheader*)(ctx->level[3].pos);
BuildRomfsHeader(ctx);
PopulateRomfs(ctx);
// Finalise by building IVFC hash tree
/* Finalise by building IVFC hash tree */
ctx->ivfcHdr = (ivfc_hdr*)(ctx->output + ctx->level[0].offset);
BuildIvfcHeader(ctx);
GenIvfcHashTree(ctx);
@@ -200,20 +184,16 @@ u32 GetHashTableCount(u32 num)
void CalcRomfsSize(romfs_buildctx *ctx)
{
ctx->dirNum = 1; // root dir
//printf("Recursively get FS sizes\n");
CalcDirSize(ctx,ctx->fs);
//printf("check U tables\n");
ctx->u_dirHashTable = 0;
ctx->m_dirHashTable = GetHashTableCount(ctx->dirNum);
ctx->u_fileHashTable = 0;
ctx->m_fileHashTable = GetHashTableCount(ctx->fileNum);
//printf("calc romfs header size\n");
u32 romfsHdrSize = align(sizeof(romfs_infoheader) + ctx->m_dirHashTable*sizeof(u32) + ctx->m_dirTableLen + ctx->m_fileHashTable*sizeof(u32) + ctx->m_fileTableLen,0x10);
//printf("predict level sizes\n");
ctx->level[3].size = romfsHdrSize + ctx->m_dataLen; // data
ctx->level[2].size = align(ctx->level[3].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE * SHA_256_LEN ;
ctx->level[1].size = align(ctx->level[2].size,ROMFS_BLOCK_SIZE) / ROMFS_BLOCK_SIZE * SHA_256_LEN ;
@@ -221,12 +201,9 @@ void CalcRomfsSize(romfs_buildctx *ctx)
ctx->romfsHeaderSize = ctx->level[0].size;
//printf("calc total ROMFS size\n");
ctx->romfsSize = 0;
for(int i = 0; i < 4; i++)
ctx->romfsSize += align(ctx->level[i].size,ROMFS_BLOCK_SIZE);
//printf("return from CalcRomfsSize();\n");
ctx->romfsSize += align(ctx->level[i].size,ROMFS_BLOCK_SIZE);
}
int FilterRomFS(fs_dir *fs_raw, fs_dir *fs_filtered, void *filter_criteria)
@@ -350,19 +327,19 @@ void AddFileToRomfs(romfs_buildctx *ctx, fs_file *file, u32 parent, u32 sibling)
u32_to_u8(entry->parentdiroffset,parent,LE);
u32_to_u8(entry->siblingoffset,sibling,LE);
// Import Name
/* Import name */
u32_to_u8(entry->namesize,file->name_len,LE);
u8 *name_pos = (u8*)(ctx->fileTable + ctx->u_fileTableLen + sizeof(romfs_fileentry));
memset(name_pos,0,align(file->name_len,4));
memcpy(name_pos,(u8*)file->name,file->name_len);
// Set Hash Data
/* Set hash data */
u32 hashindex = GetFileHashTableIndex(ctx, parent, file->name);
u32_to_u8(entry->hashoffset, ctx->fileHashTable[hashindex], LE);
ctx->fileHashTable[hashindex] = ctx->u_fileTableLen;
// Import Data
/* Import data */
if(file->size)
{
ctx->u_dataLen = align(ctx->u_dataLen,0x10); // Padding
@@ -375,101 +352,103 @@ void AddFileToRomfs(romfs_buildctx *ctx, fs_file *file, u32 parent, u32 sibling)
else
u64_to_u8(entry->dataoffset,0x00,LE);
//AddFileHashKey(ctx,parent,file->name,ctx->u_fileTableLen);
/* Increment used file table length */
ctx->u_fileTableLen += sizeof(romfs_fileentry) + align(file->name_len,4);
}
void AddDirToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 sibling)
{
//wprintf(L"adding %s \n",fs->name);
u32 offset = ctx->u_dirTableLen;
u32 hashindex;
romfs_direntry *entry = (romfs_direntry*)(ctx->dirTable + offset);
/* Set entry data */
u32_to_u8(entry->parentoffset,parent,LE);
u32_to_u8(entry->siblingoffset,sibling,LE);
u32_to_u8(entry->childoffset, ROMFS_UNUSED_ENTRY, LE);
u32_to_u8(entry->fileoffset, ROMFS_UNUSED_ENTRY, LE);
/* If root dir ... */
if(offset == 0)
{
/* Import name (root dir has no name) */
u32_to_u8(entry->namesize,0,LE);
u32 index = GetFileHashTableIndex(ctx, parent, (fs_romfs_char*)ROMFS_EMPTY_PATH);
u32_to_u8(entry->hashoffset, ctx->dirHashTable[index], LE);
ctx->dirHashTable[index] = ctx->u_dirTableLen;
/* Get hash table index */
hashindex = GetFileHashTableIndex(ctx, parent, (fs_romfs_char*)ROMFS_EMPTY_PATH);
/* Increment used dir table length */
ctx->u_dirTableLen += sizeof(romfs_direntry);
}
else
{
/* Import name */
u32_to_u8(entry->namesize,fs->name_len,LE);
u8 *name_pos = (u8*)(ctx->dirTable + ctx->u_dirTableLen + sizeof(romfs_direntry));
memset(name_pos,0,(u32)align(fs->name_len,4));
memcpy(name_pos,(u8*)fs->name,fs->name_len);
u32 index = GetFileHashTableIndex(ctx, parent, fs->name);
u32_to_u8(entry->hashoffset, ctx->dirHashTable[index], LE);
ctx->dirHashTable[index] = ctx->u_dirTableLen;
/* Get hash table index */
hashindex = GetFileHashTableIndex(ctx, parent, fs->name);
/* Increment used dir table length */
ctx->u_dirTableLen += sizeof(romfs_direntry) + (u32)align(fs->name_len,4);
}
//wprintf(L"added %s \n",fs->name);
/* Set hash data */
u32_to_u8(entry->hashoffset, ctx->dirHashTable[hashindex], LE);
ctx->dirHashTable[hashindex] = offset;
}
void AddDirChildrenToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 dir)
{
//wprintf(L"adding %s \n",fs->name);
romfs_direntry *entry = (romfs_direntry*)(ctx->dirTable + dir);
if (fs->u_file)
{
u32_to_u8(entry->fileoffset, ctx->u_fileTableLen, LE);
/* Create file entries*/
for (u32 i = 0; i < fs->u_file; i++)
{
/* If is the last file, no more siblings */
u32 file_sibling = 0;
if (i >= fs->u_file - 1)
file_sibling = ROMFS_UNUSED_ENTRY;
else
file_sibling = ctx->u_fileTableLen + sizeof(romfs_fileentry) + (u32)align(fs->file[i].name_len, 4);
//wprintf(L"adding %s (0x%lx)\n",fs->file[i].name,fs->file[i].size);
AddFileToRomfs(ctx, &fs->file[i], dir, file_sibling);
//wprintf(L"added %s (0x%lx)\n",fs->file[i].name,fs->file[i].size);
/* Create file entry */
AddFileToRomfs(ctx, &fs->file[i], dir, file_sibling);
}
}
//printf("Checking if to add dirs\n");
if (fs->u_dir)
{
/* Prepare to store child addresses */
u32 *childs = calloc(fs->u_dir, sizeof(u32));
u32 dir_sibling;
romfs_direntry *temp_entry;
//printf(" is adding dirs \n");
/* Create child directory entries*/
u32_to_u8(entry->childoffset, ctx->u_dirTableLen, LE);
fs_dir *subdir = (fs_dir*)fs->dir;
for (u32 i = 0; i < fs->u_dir; i++)
{
/* Store address fo child */
childs[i] = ctx->u_dirTableLen;
dir_sibling = 0;
temp_entry = (romfs_direntry*)(ctx->dirTable + ctx->u_dirTableLen);
u32 dir_sibling = 0;
if (i >= fs->u_dir - 1)
dir_sibling = ROMFS_UNUSED_ENTRY;
else
dir_sibling = ctx->u_dirTableLen + sizeof(romfs_direntry) + (u32)align(subdir[i].name_len, 4);
/* Create child directory entry */
AddDirToRomfs(ctx, &subdir[i], dir, dir_sibling);
/* unnecessisary as the above prediction is correct
if (dir_sibling != ROMFS_UNUSED_ENTRY)
{
dir_sibling = ctx->u_dirTableLen;//修复同目录文件夹偏移 (Repair the same directory folder offset)
u32_to_u8(temp_entry->siblingoffset, dir_sibling, LE);
}
*/
}
/* Populate child's childs */
for (u32 i = 0; i < fs->u_dir; i++)
{
AddDirChildrenToRomfs(ctx, &subdir[i], dir, childs[i]);
@@ -477,10 +456,6 @@ void AddDirChildrenToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 dir)
free(childs);
}
//printf(" finished adding dirs \n");
//wprintf(L"added %s \n",fs->name);
}
void PopulateRomfs(romfs_buildctx *ctx)