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Code Issues Releases Activity

romfs: use new NCA storage interface.

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This commit is contained in:
Pablo Curiel 2022-07-04 02:01:12 +02:00
parent c2a8f025b3
commit 8ac190686f
3 changed files with 36 additions and 23 deletions
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15
include/core/romfs.h
View file

@ -24,7 +24,7 @@
#ifndef __ROMFS_H__
#define __ROMFS_H__
#include "nca.h"
#include "nca_storage.h"
#ifdef __cplusplus
extern "C" {
@ -107,7 +107,7 @@ typedef struct {
NXDT_ASSERT(RomFileSystemFileEntry, 0x20);
typedef struct {
NcaFsSectionContext *nca_fs_ctx; ///< Used to read NCA FS section data.
NcaStorageContext storage_ctx; ///< Used to read NCA FS section data.
u64 offset; ///< RomFS offset (relative to the start of the NCA FS section).
u64 size; ///< RomFS size.
RomFileSystemHeader header; ///< RomFS header.
@ -174,6 +174,7 @@ bool romfsGenerateFileEntryPatch(RomFileSystemContext *ctx, RomFileSystemFileEnt
NX_INLINE void romfsFreeContext(RomFileSystemContext *ctx)
{
if (!ctx) return;
ncaStorageFreeContext(&(ctx->storage_ctx));
if (ctx->dir_table) free(ctx->dir_table);
if (ctx->file_table) free(ctx->file_table);
memset(ctx, 0, sizeof(RomFileSystemContext));
@ -193,15 +194,17 @@ NX_INLINE RomFileSystemFileEntry *romfsGetFileEntryByOffset(RomFileSystemContext
NX_INLINE void romfsWriteFileEntryPatchToMemoryBuffer(RomFileSystemContext *ctx, RomFileSystemFileEntryPatch *patch, void *buf, u64 buf_size, u64 buf_offset)
{
if (!ctx || !ctx->nca_fs_ctx || !patch || (!patch->use_old_format_patch && ctx->nca_fs_ctx->section_type == NcaFsSectionType_Nca0RomFs) || \
(patch->use_old_format_patch && ctx->nca_fs_ctx->section_type != NcaFsSectionType_Nca0RomFs)) return;
if (!ctx || !ncaStorageIsValidContext(&(ctx->storage_ctx)) || !patch || (!patch->use_old_format_patch && ctx->storage_ctx.nca_fs_ctx->section_type == NcaFsSectionType_Nca0RomFs) || \
(patch->use_old_format_patch && ctx->storage_ctx.nca_fs_ctx->section_type != NcaFsSectionType_Nca0RomFs)) return;
NcaContext *nca_ctx = (NcaContext*)ctx->storage_ctx.nca_fs_ctx->nca_ctx;
if (patch->use_old_format_patch)
{
ncaWriteHierarchicalSha256PatchToMemoryBuffer((NcaContext*)ctx->nca_fs_ctx->nca_ctx, &(patch->old_format_patch), buf, buf_size, buf_offset);
ncaWriteHierarchicalSha256PatchToMemoryBuffer(nca_ctx, &(patch->old_format_patch), buf, buf_size, buf_offset);
patch->written = patch->old_format_patch.written;
} else {
ncaWriteHierarchicalIntegrityPatchToMemoryBuffer((NcaContext*)ctx->nca_fs_ctx->nca_ctx, &(patch->cur_format_patch), buf, buf_size, buf_offset);
ncaWriteHierarchicalIntegrityPatchToMemoryBuffer(nca_ctx, &(patch->cur_format_patch), buf, buf_size, buf_offset);
patch->written = patch->cur_format_patch.written;
}
}

4
source/core/pfs.c
View file

@ -226,8 +226,8 @@ bool pfsGetTotalDataSize(PartitionFileSystemContext *ctx, u64 *out_size)
bool pfsGenerateEntryPatch(PartitionFileSystemContext *ctx, PartitionFileSystemEntry *fs_entry, const void *data, u64 data_size, u64 data_offset, NcaHierarchicalSha256Patch *out)
{
if (!ctx || !ncaStorageIsValidContext(&(ctx->storage_ctx)) || !ctx->header_size || !ctx->header || !fs_entry || !fs_entry->size || \
(fs_entry->offset + fs_entry->size) > ctx->size || !data || !data_size || (data_offset + data_size) > fs_entry->size || !out)
if (!ctx || !ncaStorageIsValidContext(&(ctx->storage_ctx)) || ctx->storage_ctx.base_storage_type != NcaStorageBaseStorageType_Regular || !ctx->header_size || !ctx->header || \
!fs_entry || !fs_entry->size || (fs_entry->offset + fs_entry->size) > ctx->size || !data || !data_size || (data_offset + data_size) > fs_entry->size || !out)
{
LOG_MSG("Invalid parameters!");
return false;

40
source/core/romfs.c
View file

@ -46,9 +46,15 @@ bool romfsInitializeContext(RomFileSystemContext *out, NcaFsSectionContext *nca_
/* Free output context beforehand. */
romfsFreeContext(out);
/* Fill context. */
out->nca_fs_ctx = nca_fs_ctx;
/* Initialize NCA storage context. */
NcaStorageContext *storage_ctx = &(out->storage_ctx);
if (!ncaStorageInitializeContext(storage_ctx, nca_fs_ctx))
{
LOG_MSG("Failed to initialize NCA storage context!");
goto end;
}
/* Get RomFS offset and size. */
if (!ncaGetFsSectionHashTargetProperties(nca_fs_ctx, &(out->offset), &(out->size)))
{
LOG_MSG("Failed to get target hash layer properties!");
@ -56,7 +62,7 @@ bool romfsInitializeContext(RomFileSystemContext *out, NcaFsSectionContext *nca_
}
/* Read RomFS header. */
if (!ncaReadFsSection(nca_fs_ctx, &(out->header), sizeof(RomFileSystemHeader), out->offset))
if (!ncaStorageRead(storage_ctx, &(out->header), sizeof(RomFileSystemHeader), out->offset))
{
LOG_MSG("Failed to read RomFS header!");
goto end;
@ -88,7 +94,7 @@ bool romfsInitializeContext(RomFileSystemContext *out, NcaFsSectionContext *nca_
goto end;
}
if (!ncaReadFsSection(nca_fs_ctx, out->dir_table, out->dir_table_size, out->offset + dir_table_offset))
if (!ncaStorageRead(storage_ctx, out->dir_table, out->dir_table_size, out->offset + dir_table_offset))
{
LOG_MSG("Failed to read RomFS directory entries table!");
goto end;
@ -112,7 +118,7 @@ bool romfsInitializeContext(RomFileSystemContext *out, NcaFsSectionContext *nca_
goto end;
}
if (!ncaReadFsSection(nca_fs_ctx, out->file_table, out->file_table_size, out->offset + file_table_offset))
if (!ncaStorageRead(storage_ctx, out->file_table, out->file_table_size, out->offset + file_table_offset))
{
LOG_MSG("Failed to read RomFS file entries table!");
goto end;
@ -143,14 +149,14 @@ end:
bool romfsReadFileSystemData(RomFileSystemContext *ctx, void *out, u64 read_size, u64 offset)
{
if (!ctx || !ctx->nca_fs_ctx || !ctx->size || !out || !read_size || (offset + read_size) > ctx->size)
if (!ctx || !ncaStorageIsValidContext(&(ctx->storage_ctx)) || !ctx->size || !out || !read_size || (offset + read_size) > ctx->size)
{
LOG_MSG("Invalid parameters!");
return false;
}
/* Read filesystem data. */
if (!ncaReadFsSection(ctx->nca_fs_ctx, out, read_size, ctx->offset + offset))
if (!ncaStorageRead(&(ctx->storage_ctx), out, read_size, ctx->offset + offset))
{
LOG_MSG("Failed to read RomFS data!");
return false;
@ -304,14 +310,16 @@ RomFileSystemFileEntry *romfsGetFileEntryByPath(RomFileSystemContext *ctx, const
char *path_dup = NULL, *filename = NULL;
RomFileSystemFileEntry *file_entry = NULL;
RomFileSystemDirectoryEntry *dir_entry = NULL;
NcaContext *nca_ctx = NULL;
if (!ctx || !ctx->file_table || !ctx->file_table_size || !ctx->nca_fs_ctx || !ctx->nca_fs_ctx->nca_ctx || !path || *path != '/' || (path_len = strlen(path)) <= 1)
if (!ctx || !ctx->file_table || !ctx->file_table_size || !ncaStorageIsValidContext(&(ctx->storage_ctx)) || !(nca_ctx = (NcaContext*)ctx->storage_ctx.nca_fs_ctx->nca_ctx) || \
!path || *path != '/' || (path_len = strlen(path)) <= 1)
{
LOG_MSG("Invalid parameters!");
return NULL;
}
content_type = ((NcaContext*)ctx->nca_fs_ctx->nca_ctx)->content_type;
content_type = nca_ctx->content_type;
/* Duplicate path. */
if (!(path_dup = strdup(path)))
@ -496,29 +504,31 @@ bool romfsGeneratePathFromFileEntry(RomFileSystemContext *ctx, RomFileSystemFile
bool romfsGenerateFileEntryPatch(RomFileSystemContext *ctx, RomFileSystemFileEntry *file_entry, const void *data, u64 data_size, u64 data_offset, RomFileSystemFileEntryPatch *out)
{
if (!ctx || !ctx->nca_fs_ctx || !ctx->body_offset || (ctx->nca_fs_ctx->section_type != NcaFsSectionType_Nca0RomFs && ctx->nca_fs_ctx->section_type != NcaFsSectionType_RomFs) || !file_entry || \
if (!ctx || !ncaStorageIsValidContext(&(ctx->storage_ctx)) || ctx->storage_ctx.base_storage_type != NcaStorageBaseStorageType_Regular || !ctx->body_offset || \
(ctx->storage_ctx.nca_fs_ctx->section_type != NcaFsSectionType_Nca0RomFs && ctx->storage_ctx.nca_fs_ctx->section_type != NcaFsSectionType_RomFs) || !file_entry || \
!file_entry->size || (file_entry->offset + file_entry->size) > ctx->size || !data || !data_size || (data_offset + data_size) > file_entry->size || !out)
{
LOG_MSG("Invalid parameters!");
return false;
}
bool success = false;
NcaFsSectionContext *nca_fs_ctx = ctx->storage_ctx.nca_fs_ctx;
u64 fs_offset = (ctx->body_offset + file_entry->offset + data_offset);
bool success = false;
if (ctx->nca_fs_ctx->section_type == NcaFsSectionType_Nca0RomFs)
if (nca_fs_ctx->section_type == NcaFsSectionType_Nca0RomFs)
{
out->use_old_format_patch = true;
success = ncaGenerateHierarchicalSha256Patch(ctx->nca_fs_ctx, data, data_size, fs_offset, &(out->old_format_patch));
success = ncaGenerateHierarchicalSha256Patch(nca_fs_ctx, data, data_size, fs_offset, &(out->old_format_patch));
} else {
out->use_old_format_patch = false;
success = ncaGenerateHierarchicalIntegrityPatch(ctx->nca_fs_ctx, data, data_size, fs_offset, &(out->cur_format_patch));
success = ncaGenerateHierarchicalIntegrityPatch(nca_fs_ctx, data, data_size, fs_offset, &(out->cur_format_patch));
}
out->written = false;
if (!success) LOG_MSG("Failed to generate 0x%lX bytes Hierarchical%s patch at offset 0x%lX for RomFS file entry!", data_size, \
ctx->nca_fs_ctx->section_type == NcaFsSectionType_Nca0RomFs ? "Sha256" : "Integrity", fs_offset);
nca_fs_ctx->section_type == NcaFsSectionType_Nca0RomFs ? "Sha256" : "Integrity", fs_offset);
return success;
}