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nxdumptool/source/cnmt.c

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CNMT parsing.
2020-10-01 07:17:59 +01:00
/*
* cnmt.c
*
* Copyright (c) 2020, DarkMatterCore <pabloacurielz@gmail.com>.
*
* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
*
* nxdumptool is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* nxdumptool is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "utils.h"
#include "cnmt.h"
#include "title.h"
#define CNMT_MINIMUM_FILENAME_LENGTH 23 /* Content Meta Type + "_" + Title ID + ".cnmt". */
Even more code cleanup. * Added a function to write re-encrypted NCA and/or FS section headers. Getting ready to re-implement NSP dumping. * Added more CNMT XML fields (thanks 0Liam). * Updated my to-do list because I'm dummy.
2020-10-14 01:15:21 +01:00
/* Global variables. */
static const char *g_cnmtAttributeStrings[ContentMetaAttribute_Count] = {
"IncludesExFatDriver",
"Rebootless",
"Compacted"
};
CNMT parsing.
2020-10-01 07:17:59 +01:00
/* Function prototypes. */
static bool cnmtGetContentMetaTypeAndTitleIdFromFileName(const char *cnmt_filename, size_t cnmt_filename_len, u8 *out_content_meta_type, u64 *out_title_id);
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
static const char *cnmtGetRequiredTitleVersionString(u8 content_meta_type);
static const char *cnmtGetRequiredTitleTypeString(u8 content_meta_type);
CNMT parsing.
2020-10-01 07:17:59 +01:00
bool cnmtInitializeContext(ContentMetaContext *out, NcaContext *nca_ctx)
{
Replace unnecessary strlen() calls with pointer dereferences or calculations using info available at runtime (when possible). This should probably improve performance a little bit in certain sections.
2020-10-15 01:06:53 +01:00
if (!out || !nca_ctx || !*(nca_ctx->content_id_str) || nca_ctx->content_type != NcmContentType_Meta || nca_ctx->content_size < NCA_FULL_HEADER_LENGTH || \
CNMT parsing.
2020-10-01 07:17:59 +01:00
(nca_ctx->storage_id != NcmStorageId_GameCard && !nca_ctx->ncm_storage) || (nca_ctx->storage_id == NcmStorageId_GameCard && !nca_ctx->gamecard_offset) || \
Various changes. * Cancel USB file transfer if something goes wrong during a NSP transfer via USB. * Added SD card RomFS dumper. * Further optimizations to the *WriteNcaPatch() functions. * Change struct naming in nso.c/h (thanks @0Liam !). * Replace fsp-usb with libusbhsfs. ( ͡° ͜ʖ ͡°)
2020-11-08 19:08:30 +00:00
nca_ctx->header.content_type != NcaContentType_Meta || nca_ctx->content_type_ctx || !out)
CNMT parsing.
2020-10-01 07:17:59 +01:00
{
LOGFILE("Invalid parameters!");
return false;
}
u32 i = 0, pfs_entry_count = 0;
size_t cnmt_filename_len = 0;
u8 content_meta_type = 0;
u64 title_id = 0, cur_offset = 0;
bool success = false, invalid_ext_header_size = false, invalid_ext_data_size = false;
/* Free output context beforehand. */
cnmtFreeContext(out);
/* Initialize Partition FS context. */
Code cleanup. * Added 'encrypted_header' members to both NcaContext and NcaFsSectionContext. In-place re-encryption isn't desirable in this case. * Fixed FsAccessControl-related type naming for ACI0 blocks.
2020-10-13 15:00:03 +01:00
if (!pfsInitializeContext(&(out->pfs_ctx), &(nca_ctx->fs_ctx[0])))
CNMT parsing.
2020-10-01 07:17:59 +01:00
{
LOGFILE("Failed to initialize Partition FS context!");
goto end;
}
Update NPDM structs (thanks to 0Liam) + LegalInformation XML retrieval. From now on, I'll delete code from the legacy codebase directory as soon as specific features from it are rewritten... Because it's a mess to navigate.
2020-10-09 10:58:53 +01:00
/* Get Partition FS entry count. Edge case, we should never trigger this. */
CNMT parsing.
2020-10-01 07:17:59 +01:00
if (!(pfs_entry_count = pfsGetEntryCount(&(out->pfs_ctx))))
{
LOGFILE("Partition FS has no file entries!");
goto end;
}
/* Look for the '.cnmt' file entry index. */
for(i = 0; i < pfs_entry_count; i++)
{
if ((out->cnmt_filename = pfsGetEntryNameByIndex(&(out->pfs_ctx), i)) && (cnmt_filename_len = strlen(out->cnmt_filename)) >= CNMT_MINIMUM_FILENAME_LENGTH && \
!strncasecmp(out->cnmt_filename + cnmt_filename_len - 5, ".cnmt", 5)) break;
}
if (i >= pfs_entry_count)
{
LOGFILE("'.cnmt' entry unavailable in Partition FS!");
goto end;
}
//LOGFILE("Found '.cnmt' entry \"%s\" in Meta NCA \"%s\".", out->cnmt_filename, nca_ctx->content_id_str);
/* Retrieve content meta type and title ID from the '.cnmt' filename. */
if (!cnmtGetContentMetaTypeAndTitleIdFromFileName(out->cnmt_filename, cnmt_filename_len, &content_meta_type, &title_id)) goto end;
/* Get '.cnmt' file entry. */
if (!(out->pfs_entry = pfsGetEntryByIndex(&(out->pfs_ctx), i)))
{
LOGFILE("Failed to get '.cnmt' entry from Partition FS!");
goto end;
}
/* Check raw CNMT size. */
if (!out->pfs_entry->size)
{
LOGFILE("Invalid raw CNMT size!");
goto end;
}
/* Allocate memory for the raw CNMT data. */
out->raw_data_size = out->pfs_entry->size;
Update NPDM structs (thanks to 0Liam) + LegalInformation XML retrieval. From now on, I'll delete code from the legacy codebase directory as soon as specific features from it are rewritten... Because it's a mess to navigate.
2020-10-09 10:58:53 +01:00
if (!(out->raw_data = malloc(out->raw_data_size)))
CNMT parsing.
2020-10-01 07:17:59 +01:00
{
LOGFILE("Failed to allocate memory for the raw CNMT data!");
goto end;
}
/* Read raw CNMT data into memory buffer. */
if (!pfsReadEntryData(&(out->pfs_ctx), out->pfs_entry, out->raw_data, out->raw_data_size, 0))
{
LOGFILE("Failed to read raw CNMT data!");
goto end;
}
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
/* Calculate SHA-256 checksum for the whole raw CNMT. */
sha256CalculateHash(out->raw_data_hash, out->raw_data, out->raw_data_size);
CNMT parsing.
2020-10-01 07:17:59 +01:00
/* Verify packaged header. */
CNTM: type name consistence.
2020-10-02 11:28:41 +01:00
out->packaged_header = (ContentMetaPackagedContentMetaHeader*)out->raw_data;
cur_offset += sizeof(ContentMetaPackagedContentMetaHeader);
CNMT parsing.
2020-10-01 07:17:59 +01:00
if (out->packaged_header->title_id != title_id)
{
LOGFILE("CNMT title ID mismatch! (%016lX != %016lX).", out->packaged_header->title_id, title_id);
goto end;
}
if (out->packaged_header->content_meta_type != content_meta_type)
{
LOGFILE("CNMT content meta type mismatch! (0x%02X != 0x%02X).", out->packaged_header->content_meta_type, content_meta_type);
goto end;
}
Fix support for CNMTs with no ContentInfo entries.
2020-10-13 03:46:59 +01:00
if (!out->packaged_header->content_count && out->packaged_header->content_meta_type != NcmContentMetaType_SystemUpdate)
CNMT parsing.
2020-10-01 07:17:59 +01:00
{
LOGFILE("Invalid content count!");
goto end;
}
if ((out->packaged_header->content_meta_type == NcmContentMetaType_SystemUpdate && !out->packaged_header->content_meta_count) || \
(out->packaged_header->content_meta_type != NcmContentMetaType_SystemUpdate && out->packaged_header->content_meta_count))
{
LOGFILE("Invalid content meta count!");
goto end;
}
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
/* Save pointer to extended header. */
CNMT parsing.
2020-10-01 07:17:59 +01:00
if (out->packaged_header->extended_header_size)
{
out->extended_header = (out->raw_data + cur_offset);
cur_offset += out->packaged_header->extended_header_size;
switch(out->packaged_header->content_meta_type)
{
case NcmContentMetaType_SystemUpdate:
invalid_ext_header_size = (out->packaged_header->extended_header_size != (u16)sizeof(ContentMetaSystemUpdateMetaExtendedHeader));
out->extended_data_size = (!invalid_ext_header_size ? ((ContentMetaSystemUpdateMetaExtendedHeader*)out->extended_header)->extended_data_size : 0);
invalid_ext_data_size = (out->extended_data_size <= sizeof(ContentMetaSystemUpdateMetaExtendedDataHeader));
break;
case NcmContentMetaType_Application:
invalid_ext_header_size = (out->packaged_header->extended_header_size != (u16)sizeof(ContentMetaApplicationMetaExtendedHeader));
break;
case NcmContentMetaType_Patch:
invalid_ext_header_size = (out->packaged_header->extended_header_size != (u16)sizeof(ContentMetaPatchMetaExtendedHeader));
out->extended_data_size = (!invalid_ext_header_size ? ((ContentMetaPatchMetaExtendedHeader*)out->extended_header)->extended_data_size : 0);
invalid_ext_data_size = (out->extended_data_size <= sizeof(ContentMetaPatchMetaExtendedDataHeader));
break;
case NcmContentMetaType_AddOnContent:
invalid_ext_header_size = (out->packaged_header->extended_header_size != (u16)sizeof(ContentMetaAddOnContentMetaExtendedHeader));
break;
case NcmContentMetaType_Delta:
invalid_ext_header_size = (out->packaged_header->extended_header_size != (u16)sizeof(ContentMetaDeltaMetaExtendedHeader));
out->extended_data_size = (!invalid_ext_header_size ? ((ContentMetaDeltaMetaExtendedHeader*)out->extended_header)->extended_data_size : 0);
invalid_ext_data_size = (out->extended_data_size <= sizeof(ContentMetaDeltaMetaExtendedDataHeader));
break;
default:
invalid_ext_header_size = (out->packaged_header->extended_header_size > 0);
break;
}
if (invalid_ext_header_size)
{
LOGFILE("Invalid extended header size!");
goto end;
}
if (invalid_ext_data_size)
{
LOGFILE("Invalid extended data size!");
goto end;
}
}
/* Save pointer to packaged content infos. */
Fix support for CNMTs with no ContentInfo entries.
2020-10-13 03:46:59 +01:00
if (out->packaged_header->content_count)
{
out->packaged_content_info = (NcmPackagedContentInfo*)(out->raw_data + cur_offset);
cur_offset += (out->packaged_header->content_count * sizeof(NcmPackagedContentInfo));
}
CNMT parsing.
2020-10-01 07:17:59 +01:00
/* Save pointer to content meta infos. */
if (out->packaged_header->content_meta_count)
{
out->content_meta_info = (NcmContentMetaInfo*)(out->raw_data + cur_offset);
cur_offset += (out->packaged_header->content_meta_count * sizeof(NcmContentMetaInfo));
}
/* Save pointer to the extended data block. */
if (out->extended_data_size)
{
out->extended_data = (out->raw_data + cur_offset);
cur_offset += out->extended_data_size;
}
/* Save pointer to digest. */
out->digest = (out->raw_data + cur_offset);
cur_offset += CNMT_DIGEST_SIZE;
/* Safety check: verify raw CNMT size. */
if (cur_offset != out->raw_data_size)
{
NPDM context.
2020-10-10 20:29:14 +01:00
LOGFILE("Raw CNMT size mismatch! (0x%lX != 0x%lX).", cur_offset, out->raw_data_size);
CNMT parsing.
2020-10-01 07:17:59 +01:00
goto end;
}
Many changes. * AES: moved CTR initializing/updating functions here from nca.c. * BKTR/RomFS/PFS: check if we're dealing with a NCA with titlekey crypto and the titlekey hasn't been retrieved. * BFTTF: use void pointers for output font data. * Mem: Only exclude Unmapped/Uo/ThreadLocal/Reserved memory pages if dealing with FS. * NCA: use content type context pointers inside NCA contexts to manage ContentMeta, ProgramInfo, Nacp and LegalInfo contexts. * NCA: added 'written' bool elements to patch structs to indicate patch write completion. * NPDM: remove unnecessary inline functions, generate PFS patch right after changing ACID data, add a pfsWriteEntryPatchToMemoryBuffer wrapper. * PFS: added PartitionFileSystemFileContext and related functions to deal with NSP headers. * ProgramInfo: removed unnecessary inline functions. * Save: added commented code to dump a full system savefile - will probably use it down the road. * Tik: added support for volatile tickets (thanks to @shchmue and @Whovian9369!), added a rights ID string representation to the Ticket struct, clear Volatile and ELicenseRequired flags in conversions to common tickets. * Title: added a function to calculate the number of titles (current + siblings) from a TItleInfo block. * Utils: added a function to generate a dynamically allocated path string using a prefix, a filename and a extension. * Removed explicit offset checks throughout all the code. * Codestyle fixes. * Updated to-do.
2020-10-21 05:27:48 +01:00
/* Update output context. */
out->nca_ctx = nca_ctx;
/* Update content type context info in NCA context. */
nca_ctx->content_type_ctx = out;
nca_ctx->content_type_ctx_patch = false;
CNMT parsing.
2020-10-01 07:17:59 +01:00
success = true;
end:
if (!success) cnmtFreeContext(out);
return success;
}
More changes. * Added NSP dumper PoC (SD card only atm, single-threaded). * Cert: replaced a wrong strcmp() with a proper strncmp(). * CNMT: added functions to update content info entries and generate/write Partition FS patches. * NCA: encrypt key area right after removing titlekey crypto. * NPDM/ProgramInfo: changed function names. * NPDM: check if the NCA has been modified before attempting to patch ACID data + calculate RSA-PSS signature *after* generating the PFS patch, not before. lol * PFS: restore name table size value before writing the header padding. * Tik: reworked the ticket lookup algorithm. Now uses information from ticket_list.bin to properly calculate the offset to the requested ticket in ticket.bin. * Title: changed title type strings used for filename generation. * Updated to-do list.
2020-10-22 05:38:14 +01:00
bool cnmtUpdateContentInfo(ContentMetaContext *cnmt_ctx, NcaContext *nca_ctx)
{
if (!cnmtIsValidContext(cnmt_ctx) || !nca_ctx || !*(nca_ctx->content_id_str) || !*(nca_ctx->hash_str) || nca_ctx->content_type > NcmContentType_DeltaFragment || !nca_ctx->content_size)
{
LOGFILE("Invalid parameters!");
return false;
}
/* Return right away if we're dealing with a Meta NCA. */
if (nca_ctx->content_type == NcmContentType_Meta) return true;
bool success = false;
for(u16 i = 0; i < cnmt_ctx->packaged_header->content_count; i++)
{
NcmPackagedContentInfo *packaged_content_info = &(cnmt_ctx->packaged_content_info[i]);
NcmContentInfo *content_info = &(packaged_content_info->info);
u64 content_size = 0;
titleConvertNcmContentSizeToU64(content_info->size, &content_size);
if (content_size == nca_ctx->content_size && content_info->content_type == nca_ctx->content_type && content_info->id_offset == nca_ctx->id_offset)
{
/* Jackpot. Copy content ID and hash to our raw CNMT. */
memcpy(packaged_content_info->hash, nca_ctx->hash, sizeof(nca_ctx->hash));
memcpy(&(content_info->content_id), &(nca_ctx->content_id), sizeof(NcmContentId));
LOGFILE("Updated CNMT content record #%u (size 0x%lX, type 0x%02X, ID offset 0x%02X).", i, content_size, content_info->content_type, content_info->id_offset);
success = true;
break;
}
}
if (!success) LOGFILE("Unable to find CNMT content info entry for \"%s\" NCA! (size 0x%lX, type 0x%02X, ID offset 0x%02X).", nca_ctx->content_id_str, nca_ctx->content_size, nca_ctx->content_type, \
nca_ctx->id_offset);
return success;
}
bool cnmtGenerateNcaPatch(ContentMetaContext *cnmt_ctx)
{
if (!cnmtIsValidContext(cnmt_ctx))
{
LOGFILE("Invalid parameters!");
return false;
}
/* Check if we really need to generate this patch. */
u8 cnmt_hash[SHA256_HASH_SIZE] = {0};
sha256CalculateHash(cnmt_hash, cnmt_ctx->raw_data, cnmt_ctx->raw_data_size);
if (!memcmp(cnmt_hash, cnmt_ctx->raw_data_hash, sizeof(cnmt_hash)))
{
LOGFILE("Skipping CNMT patching - no content records have been changed.");
return true;
}
/* Generate Partition FS entry patch. */
if (!pfsGenerateEntryPatch(&(cnmt_ctx->pfs_ctx), cnmt_ctx->pfs_entry, cnmt_ctx->raw_data, cnmt_ctx->raw_data_size, 0, &(cnmt_ctx->nca_patch)))
{
LOGFILE("Failed to generate Partition FS entry patch!");
return false;
}
/* Update NCA content type context patch status. */
cnmt_ctx->nca_ctx->content_type_ctx_patch = true;
return true;
}
void cnmtWriteNcaPatch(ContentMetaContext *cnmt_ctx, void *buf, u64 buf_size, u64 buf_offset)
{
Various changes. * Cancel USB file transfer if something goes wrong during a NSP transfer via USB. * Added SD card RomFS dumper. * Further optimizations to the *WriteNcaPatch() functions. * Change struct naming in nso.c/h (thanks @0Liam !). * Replace fsp-usb with libusbhsfs. ( ͡° ͜ʖ ͡°)
2020-11-08 19:08:30 +00:00
NcaContext *nca_ctx = NULL;
NcaHierarchicalSha256Patch *nca_patch = (cnmt_ctx ? &(cnmt_ctx->nca_patch) : NULL);
More changes. * Added NSP dumper PoC (SD card only atm, single-threaded). * Cert: replaced a wrong strcmp() with a proper strncmp(). * CNMT: added functions to update content info entries and generate/write Partition FS patches. * NCA: encrypt key area right after removing titlekey crypto. * NPDM/ProgramInfo: changed function names. * NPDM: check if the NCA has been modified before attempting to patch ACID data + calculate RSA-PSS signature *after* generating the PFS patch, not before. lol * PFS: restore name table size value before writing the header padding. * Tik: reworked the ticket lookup algorithm. Now uses information from ticket_list.bin to properly calculate the offset to the requested ticket in ticket.bin. * Title: changed title type strings used for filename generation. * Updated to-do list.
2020-10-22 05:38:14 +01:00
/* Using cnmtIsValidContext() here would probably take up precious CPU cycles. */
Various changes. * Cancel USB file transfer if something goes wrong during a NSP transfer via USB. * Added SD card RomFS dumper. * Further optimizations to the *WriteNcaPatch() functions. * Change struct naming in nso.c/h (thanks @0Liam !). * Replace fsp-usb with libusbhsfs. ( ͡° ͜ʖ ͡°)
2020-11-08 19:08:30 +00:00
if (!nca_patch || nca_patch->written || !(nca_ctx = cnmt_ctx->nca_ctx) || nca_ctx->content_type != NcmContentType_Meta || !nca_ctx->content_type_ctx_patch) return;
More changes. * Added NSP dumper PoC (SD card only atm, single-threaded). * Cert: replaced a wrong strcmp() with a proper strncmp(). * CNMT: added functions to update content info entries and generate/write Partition FS patches. * NCA: encrypt key area right after removing titlekey crypto. * NPDM/ProgramInfo: changed function names. * NPDM: check if the NCA has been modified before attempting to patch ACID data + calculate RSA-PSS signature *after* generating the PFS patch, not before. lol * PFS: restore name table size value before writing the header padding. * Tik: reworked the ticket lookup algorithm. Now uses information from ticket_list.bin to properly calculate the offset to the requested ticket in ticket.bin. * Title: changed title type strings used for filename generation. * Updated to-do list.
2020-10-22 05:38:14 +01:00
NACP changes. Fixed types for some NACP struct entries (thanks @0Liam !) + added functions to generate and write NACP patches.
2020-10-28 22:48:46 +00:00
/* Attempt to write Partition FS entry patch. */
Various changes. * Cancel USB file transfer if something goes wrong during a NSP transfer via USB. * Added SD card RomFS dumper. * Further optimizations to the *WriteNcaPatch() functions. * Change struct naming in nso.c/h (thanks @0Liam !). * Replace fsp-usb with libusbhsfs. ( ͡° ͜ʖ ͡°)
2020-11-08 19:08:30 +00:00
pfsWriteEntryPatchToMemoryBuffer(&(cnmt_ctx->pfs_ctx), nca_patch, buf, buf_size, buf_offset);
More changes. * Added NSP dumper PoC (SD card only atm, single-threaded). * Cert: replaced a wrong strcmp() with a proper strncmp(). * CNMT: added functions to update content info entries and generate/write Partition FS patches. * NCA: encrypt key area right after removing titlekey crypto. * NPDM/ProgramInfo: changed function names. * NPDM: check if the NCA has been modified before attempting to patch ACID data + calculate RSA-PSS signature *after* generating the PFS patch, not before. lol * PFS: restore name table size value before writing the header padding. * Tik: reworked the ticket lookup algorithm. Now uses information from ticket_list.bin to properly calculate the offset to the requested ticket in ticket.bin. * Title: changed title type strings used for filename generation. * Updated to-do list.
2020-10-22 05:38:14 +01:00
/* Check if we need to update the NCA content type context patch status. */
Various changes. * Cancel USB file transfer if something goes wrong during a NSP transfer via USB. * Added SD card RomFS dumper. * Further optimizations to the *WriteNcaPatch() functions. * Change struct naming in nso.c/h (thanks @0Liam !). * Replace fsp-usb with libusbhsfs. ( ͡° ͜ʖ ͡°)
2020-11-08 19:08:30 +00:00
if (nca_patch->written)
More changes. * Added NSP dumper PoC (SD card only atm, single-threaded). * Cert: replaced a wrong strcmp() with a proper strncmp(). * CNMT: added functions to update content info entries and generate/write Partition FS patches. * NCA: encrypt key area right after removing titlekey crypto. * NPDM/ProgramInfo: changed function names. * NPDM: check if the NCA has been modified before attempting to patch ACID data + calculate RSA-PSS signature *after* generating the PFS patch, not before. lol * PFS: restore name table size value before writing the header padding. * Tik: reworked the ticket lookup algorithm. Now uses information from ticket_list.bin to properly calculate the offset to the requested ticket in ticket.bin. * Title: changed title type strings used for filename generation. * Updated to-do list.
2020-10-22 05:38:14 +01:00
{
Various changes. * Cancel USB file transfer if something goes wrong during a NSP transfer via USB. * Added SD card RomFS dumper. * Further optimizations to the *WriteNcaPatch() functions. * Change struct naming in nso.c/h (thanks @0Liam !). * Replace fsp-usb with libusbhsfs. ( ͡° ͜ʖ ͡°)
2020-11-08 19:08:30 +00:00
nca_ctx->content_type_ctx_patch = false;
LOGFILE("CNMT Partition FS entry patch successfully written to NCA \"%s\"!", nca_ctx->content_id_str);
More changes. * Added NSP dumper PoC (SD card only atm, single-threaded). * Cert: replaced a wrong strcmp() with a proper strncmp(). * CNMT: added functions to update content info entries and generate/write Partition FS patches. * NCA: encrypt key area right after removing titlekey crypto. * NPDM/ProgramInfo: changed function names. * NPDM: check if the NCA has been modified before attempting to patch ACID data + calculate RSA-PSS signature *after* generating the PFS patch, not before. lol * PFS: restore name table size value before writing the header padding. * Tik: reworked the ticket lookup algorithm. Now uses information from ticket_list.bin to properly calculate the offset to the requested ticket in ticket.bin. * Title: changed title type strings used for filename generation. * Updated to-do list.
2020-10-22 05:38:14 +01:00
}
}
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
bool cnmtGenerateAuthoringToolXml(ContentMetaContext *cnmt_ctx, NcaContext *nca_ctx, u32 nca_ctx_count)
{
CNMT: fixed support for patches.
2020-10-28 04:30:13 +00:00
if (!cnmtIsValidContext(cnmt_ctx) || !nca_ctx || !nca_ctx_count || nca_ctx_count > ((u32)cnmt_ctx->packaged_header->content_count + 1))
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
{
LOGFILE("Invalid parameters!");
return false;
}
NACP parsing (part 1). God, I'm so tired. I'll go play some good old MGS3 and continue this stuff at a later time. It builds, though.
2020-10-03 18:09:29 +01:00
u32 i, j;
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
char *xml_buf = NULL;
u64 xml_buf_size = 0;
char digest_str[0x41] = {0};
Even more code cleanup. * Added a function to write re-encrypted NCA and/or FS section headers. Getting ready to re-implement NSP dumping. * Added more CNMT XML fields (thanks 0Liam). * Updated my to-do list because I'm dummy.
2020-10-14 01:15:21 +01:00
u8 count = 0;
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
bool success = false, invalid_nca = false;
/* Free AuthoringTool-like XML data if needed. */
if (cnmt_ctx->authoring_tool_xml) free(cnmt_ctx->authoring_tool_xml);
cnmt_ctx->authoring_tool_xml = NULL;
cnmt_ctx->authoring_tool_xml_size = 0;
if (!utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, \
"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" \
"<ContentMeta>\n" \
" <Type>%s</Type>\n" \
" <Id>0x%016lx</Id>\n" \
" <Version>%u</Version>\n" \
Even more code cleanup. * Added a function to write re-encrypted NCA and/or FS section headers. Getting ready to re-implement NSP dumping. * Added more CNMT XML fields (thanks 0Liam). * Updated my to-do list because I'm dummy.
2020-10-14 01:15:21 +01:00
" <ReleaseVersion />\n" \
" <PrivateVersion />\n",
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
titleGetNcmContentMetaTypeName(cnmt_ctx->packaged_header->content_meta_type), \
cnmt_ctx->packaged_header->title_id, \
Even more code cleanup. * Added a function to write re-encrypted NCA and/or FS section headers. Getting ready to re-implement NSP dumping. * Added more CNMT XML fields (thanks 0Liam). * Updated my to-do list because I'm dummy.
2020-10-14 01:15:21 +01:00
cnmt_ctx->packaged_header->version.value)) goto end;
/* ContentMetaAttribute. */
for(i = 0; i < ContentMetaAttribute_Count; i++)
{
if (!(cnmt_ctx->packaged_header->content_meta_attribute & (u8)BIT(i))) continue;
if (!utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, " <ContentMetaAttribute>%s</ContentMetaAttribute>\n", g_cnmtAttributeStrings[i])) goto end;
count++;
}
if (!count && !utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, " <ContentMetaAttribute />\n")) goto end;
if (!utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, " <RequiredDownloadSystemVersion>%u</RequiredDownloadSystemVersion>\n", \
Codestyle fixes + prepare code for NPDM support.
2020-10-08 19:31:09 +01:00
cnmt_ctx->packaged_header->required_download_system_version.value)) goto end;
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
for(i = 0; i < nca_ctx_count; i++)
{
More code cleanup.
2020-10-14 19:58:33 +01:00
NcaContext *cur_nca_ctx = &(nca_ctx[i]);
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
/* Check if this NCA is really referenced by our CNMT. */
More code cleanup.
2020-10-14 19:58:33 +01:00
if (cur_nca_ctx->content_type != NcmContentType_Meta)
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
{
/* Non-Meta NCAs: check if their content IDs are part of the packaged content info entries from the CNMT. */
for(j = 0; j < cnmt_ctx->packaged_header->content_count; j++)
{
More code cleanup.
2020-10-14 19:58:33 +01:00
if (!memcmp(cnmt_ctx->packaged_content_info[j].info.content_id.c, cur_nca_ctx->content_id.c, 0x10)) break;
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
}
invalid_nca = (j >= cnmt_ctx->packaged_header->content_count);
} else {
/* Meta NCAs: quick and dirty pointer comparison because why not. */
More code cleanup.
2020-10-14 19:58:33 +01:00
invalid_nca = (cnmt_ctx->nca_ctx != cur_nca_ctx);
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
}
if (invalid_nca)
{
More code cleanup.
2020-10-14 19:58:33 +01:00
LOGFILE("NCA \"%s\" isn't referenced by this CNMT!", cur_nca_ctx->content_id_str);
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
goto end;
}
if (!utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, \
" <Content>\n" \
" <Type>%s</Type>\n" \
" <Id>%s</Id>\n" \
" <Size>%lu</Size>\n" \
" <Hash>%s</Hash>\n" \
" <KeyGeneration>%u</KeyGeneration>\n" \
" <IdOffset>%u</IdOffset>\n" \
" </Content>\n", \
More code cleanup.
2020-10-14 19:58:33 +01:00
titleGetNcmContentTypeName(cur_nca_ctx->content_type), \
cur_nca_ctx->content_id_str, \
cur_nca_ctx->content_size, \
cur_nca_ctx->hash_str, \
cur_nca_ctx->key_generation, \
cur_nca_ctx->id_offset)) goto end;
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
}
utilsGenerateHexStringFromData(digest_str, sizeof(digest_str), cnmt_ctx->digest, CNMT_DIGEST_SIZE);
if (!utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, \
Even more code cleanup. * Added a function to write re-encrypted NCA and/or FS section headers. Getting ready to re-implement NSP dumping. * Added more CNMT XML fields (thanks 0Liam). * Updated my to-do list because I'm dummy.
2020-10-14 01:15:21 +01:00
" <ContentMeta />\n" \
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
" <Digest>%s</Digest>\n" \
Even more code cleanup. * Added a function to write re-encrypted NCA and/or FS section headers. Getting ready to re-implement NSP dumping. * Added more CNMT XML fields (thanks 0Liam). * Updated my to-do list because I'm dummy.
2020-10-14 01:15:21 +01:00
" <KeyGenerationMin>%u</KeyGenerationMin>\n" \
" <KeepGeneration />\n" \
" <KeepGenerationSpecified />\n", \
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
digest_str, \
cnmt_ctx->nca_ctx->key_generation)) goto end;
if (cnmt_ctx->packaged_header->content_meta_type == NcmContentMetaType_Application || cnmt_ctx->packaged_header->content_meta_type == NcmContentMetaType_Patch || \
cnmt_ctx->packaged_header->content_meta_type == NcmContentMetaType_AddOnContent)
{
Unified XML generator + finished NACP parsing. Big thanks to 0Liam.
2020-10-06 16:41:26 +01:00
u32 required_title_version = cnmtGetRequiredTitleVersion(cnmt_ctx);
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
const char *required_title_version_str = cnmtGetRequiredTitleVersionString(cnmt_ctx->packaged_header->content_meta_type);
Unified XML generator + finished NACP parsing. Big thanks to 0Liam.
2020-10-06 16:41:26 +01:00
u64 required_title_id = cnmtGetRequiredTitleId(cnmt_ctx);
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
const char *required_title_type_str = cnmtGetRequiredTitleTypeString(cnmt_ctx->packaged_header->content_meta_type);
if (!utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, \
" <%s>%u</%s>\n" \
" <%s>0x%016lx</%s>\n", \
Even more code cleanup. * Added a function to write re-encrypted NCA and/or FS section headers. Getting ready to re-implement NSP dumping. * Added more CNMT XML fields (thanks 0Liam). * Updated my to-do list because I'm dummy.
2020-10-14 01:15:21 +01:00
required_title_version_str, required_title_version, required_title_version_str, \
required_title_type_str, required_title_id, required_title_type_str)) goto end;
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
}
if (cnmt_ctx->packaged_header->content_meta_type == NcmContentMetaType_Application)
{
if (!utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, \
" <RequiredApplicationVersion>%u</RequiredApplicationVersion>\n", \
Codestyle fixes + prepare code for NPDM support.
2020-10-08 19:31:09 +01:00
((VersionType1*)(cnmt_ctx->extended_header + sizeof(u64) + sizeof(u32)))->value)) goto end;
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
}
if (!(success = utilsAppendFormattedStringToBuffer(&xml_buf, &xml_buf_size, "</ContentMeta>"))) goto end;
/* Update CNMT context. */
cnmt_ctx->authoring_tool_xml = xml_buf;
cnmt_ctx->authoring_tool_xml_size = strlen(xml_buf);
end:
if (!success)
{
if (xml_buf) free(xml_buf);
LOGFILE("Failed to generate CNMT AuthoringTool XML!");
}
return success;
}
CNMT parsing.
2020-10-01 07:17:59 +01:00
static bool cnmtGetContentMetaTypeAndTitleIdFromFileName(const char *cnmt_filename, size_t cnmt_filename_len, u8 *out_content_meta_type, u64 *out_title_id)
{
if (!cnmt_filename || cnmt_filename_len < CNMT_MINIMUM_FILENAME_LENGTH || !out_content_meta_type || !out_title_id)
{
LOGFILE("Invalid parameters!");
return false;
}
u8 i = 0;
const char *pch1 = NULL, *pch2 = NULL;
size_t content_meta_type_str_len = 0;
pch1 = (const char*)strstr(cnmt_filename, "_");
pch2 = (cnmt_filename + cnmt_filename_len - 5);
if (!pch1 || !(content_meta_type_str_len = (pch1 - cnmt_filename)) || (pch2 - ++pch1) != 16)
{
LOGFILE("Invalid '.cnmt' filename in Partition FS!");
return false;
}
for(i = NcmContentMetaType_SystemProgram; i <= NcmContentMetaType_Delta; i++)
{
if (i > NcmContentMetaType_BootImagePackageSafe && i < NcmContentMetaType_Application)
{
i = (NcmContentMetaType_Application - 1);
continue;
}
if (!strncasecmp(cnmt_filename, titleGetNcmContentMetaTypeName(i), content_meta_type_str_len))
{
*out_content_meta_type = i;
break;
}
}
if (i > NcmContentMetaType_Delta)
{
LOGFILE("Invalid content meta type \"%.*s\" in '.cnmt' filename!", (int)content_meta_type_str_len, cnmt_filename);
return false;
}
if (!(*out_title_id = strtoull(pch1, NULL, 16)))
{
LOGFILE("Invalid title ID in '.cnmt' filename!");
return false;
}
return true;
}
CNMT AuthoringTool-like XML generation.
2020-10-02 10:53:58 +01:00
static const char *cnmtGetRequiredTitleVersionString(u8 content_meta_type)
{
const char *str = NULL;
switch(content_meta_type)
{
case NcmContentMetaType_Application:
case NcmContentMetaType_Patch:
str = "RequiredSystemVersion";
break;
case NcmContentMetaType_AddOnContent:
str = "RequiredApplicationVersion";
break;
default:
str = "Unknown";
break;
}
return str;
}
static const char *cnmtGetRequiredTitleTypeString(u8 content_meta_type)
{
const char *str = NULL;
switch(content_meta_type)
{
case NcmContentMetaType_Application:
str = "PatchId";
break;
case NcmContentMetaType_Patch:
case NcmContentMetaType_AddOnContent:
str = "ApplicationId";
break;
default:
str = "Unknown";
break;
}
return str;
}
Reference in a new issue Copy permalink