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legacy-makerom
Project_CTR/accessdesc.c
T
3DSGuy 1060604377 makerom v0.8
2014-05-06 07:23:00 +08:00

497 lines
16 KiB
C
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#include "lib.h"
#include "ncch.h"
#include "exheader.h"
#include "accessdesc.h"
#include "polarssl/base64.h"
#include "desc_presets.h"
#ifndef PUBLIC_BUILD
#include "desc_dev_sigdata.h"
#include "desc_prod_sigdata.h"
#endif
const int RSF_RSA_DATA_LEN = 344;
const int RSF_DESC_DATA_LEN = 684;
int accessdesc_SignWithKey(exheader_settings *exhdrset, ncch_settings *ncchset);
int accessdesc_GetSignFromRsf(exheader_settings *exhdrset, ncch_settings *ncchset);
int accessdesc_GetSignFromPreset(exheader_settings *exhdrset, ncch_settings *ncchset);
void accessdesc_GetPresetData(u8 **desc, u8 **accessDesc, u8 **depList, ncch_settings *ncchset);
#ifndef PUBLIC_BUILD
void accessdesc_GetPresetSigData(u8 **accessDescSig, u8 **cxiPubk, u8 **cxiPvtk, ncch_settings *ncchset);
#endif
bool IsValidB64Char(char chr);
u32 b64_strlen(char *str);
void b64_strcpy(char *dst, char *src);
int set_AccessDesc(exheader_settings *exhdrset, ncch_settings *ncchset)
{
if(exhdrset->useAccessDescPreset)
return accessdesc_GetSignFromPreset(exhdrset,ncchset);
else if(ncchset->rsfSet->CommonHeaderKey.Found) // Keydata exists in RSF
return accessdesc_GetSignFromRsf(exhdrset,ncchset);
else if(!ncchset->keys->rsa.requiresPresignedDesc) // Else if The AccessDesc can be signed with key
return accessdesc_SignWithKey(exhdrset,ncchset);
else{ // No way the access desc signature can be 'obtained'
fprintf(stderr,"[EXHEADER ERROR] Current keyset cannot sign AccessDesc, please appropriatly setup RSF, or specify a preset with -accessdesc\n");
return CANNOT_SIGN_ACCESSDESC;
}
}
int accessdesc_SignWithKey(exheader_settings *exhdrset, ncch_settings *ncchset)
{
/* Set RSA Keys */
memcpy(exhdrset->keys->rsa.cxiHdrPvt,exhdrset->keys->rsa.cciCfaPvt,0x100);
memcpy(exhdrset->keys->rsa.cxiHdrPub,exhdrset->keys->rsa.cciCfaPub,0x100);
memcpy(&exhdrset->exHdr->accessDescriptor.ncchRsaPubKey,exhdrset->keys->rsa.cxiHdrPub,0x100);
/* Copy Data From ExHeader */
memcpy(&exhdrset->exHdr->accessDescriptor.arm11SystemLocalCapabilities,&exhdrset->exHdr->arm11SystemLocalCapabilities,sizeof(exhdr_ARM11SystemLocalCapabilities));
memcpy(&exhdrset->exHdr->accessDescriptor.arm11KernelCapabilities,&exhdrset->exHdr->arm11KernelCapabilities,sizeof(exhdr_ARM11KernelCapabilities));
memcpy(&exhdrset->exHdr->accessDescriptor.arm9AccessControlInfo,&exhdrset->exHdr->arm9AccessControlInfo,sizeof(exhdr_ARM9AccessControlInfo));
/* Adjust Data */
u8 *flag = &exhdrset->exHdr->accessDescriptor.arm11SystemLocalCapabilities.flag;
u8 SystemMode = (*flag>>4)&0xF;
u8 AffinityMask = (*flag>>2)&0x3;
u8 IdealProcessor = 1<<((*flag>>0)&0x3);
*flag = (u8)(SystemMode << 4 | AffinityMask << 2 | IdealProcessor);
exhdrset->exHdr->accessDescriptor.arm11SystemLocalCapabilities.priority /= 2;
/* Sign AccessDesc */
return SignAccessDesc(exhdrset->exHdr,exhdrset->keys);
}
int accessdesc_GetSignFromRsf(exheader_settings *exhdrset, ncch_settings *ncchset)
{
/* Yaml Option Sanity Checks */
if(!exhdrset->rsf->CommonHeaderKey.Found){
fprintf(stderr,"[EXHEADER ERROR] RSF Section \"CommonHeaderKey\" not found\n");
return COMMON_HEADER_KEY_NOT_FOUND;
}
if(!exhdrset->rsf->CommonHeaderKey.D){
ErrorParamNotFound("CommonHeaderKey/D");
return COMMON_HEADER_KEY_NOT_FOUND;
}
if(b64_strlen(exhdrset->rsf->CommonHeaderKey.D) != RSF_RSA_DATA_LEN){
fprintf(stderr,"[EXHEADER ERROR] \"CommonHeaderKey/D\" has invalid length (%d)\n",b64_strlen(exhdrset->rsf->CommonHeaderKey.D));
return COMMON_HEADER_KEY_NOT_FOUND;
}
if(!exhdrset->rsf->CommonHeaderKey.Modulus){
ErrorParamNotFound("CommonHeaderKey/Modulus");
return COMMON_HEADER_KEY_NOT_FOUND;
}
if(b64_strlen(exhdrset->rsf->CommonHeaderKey.Modulus) != RSF_RSA_DATA_LEN){
fprintf(stderr,"[EXHEADER ERROR] \"CommonHeaderKey/Modulus\" has invalid length (%d)\n",b64_strlen(exhdrset->rsf->CommonHeaderKey.Modulus));
return COMMON_HEADER_KEY_NOT_FOUND;
}
if(!exhdrset->rsf->CommonHeaderKey.AccCtlDescSign){
ErrorParamNotFound("CommonHeaderKey/Signature");
return COMMON_HEADER_KEY_NOT_FOUND;
}
if(b64_strlen(exhdrset->rsf->CommonHeaderKey.AccCtlDescSign) != RSF_RSA_DATA_LEN){
fprintf(stderr,"[EXHEADER ERROR] \"CommonHeaderKey/Signature\" has invalid length (%d)\n",b64_strlen(exhdrset->rsf->CommonHeaderKey.AccCtlDescSign));
return COMMON_HEADER_KEY_NOT_FOUND;
}
if(!exhdrset->rsf->CommonHeaderKey.AccCtlDescBin){
ErrorParamNotFound("CommonHeaderKey/Descriptor");
return COMMON_HEADER_KEY_NOT_FOUND;
}
if(b64_strlen(exhdrset->rsf->CommonHeaderKey.AccCtlDescBin) != RSF_DESC_DATA_LEN){
fprintf(stderr,"[EXHEADER ERROR] \"CommonHeaderKey/Descriptor\" has invalid length (%d)\n",b64_strlen(exhdrset->rsf->CommonHeaderKey.AccCtlDescBin));
return COMMON_HEADER_KEY_NOT_FOUND;
}
/* Set RSA Keys */
int result = 0;
u32 out;
out = 0x100;
result = base64_decode(exhdrset->keys->rsa.cxiHdrPub,&out,(const u8*)exhdrset->rsf->CommonHeaderKey.Modulus,strlen(exhdrset->rsf->CommonHeaderKey.Modulus));
if(out != 0x100)
result = POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL;
if(result) goto finish;
out = 0x100;
result = base64_decode(exhdrset->keys->rsa.cxiHdrPvt,&out,(const u8*)exhdrset->rsf->CommonHeaderKey.D,strlen(exhdrset->rsf->CommonHeaderKey.D));
if(out != 0x100)
result = POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL;
if(result) goto finish;
/* Set AccessDesc */
out = 0x100;
result = base64_decode(exhdrset->exHdr->accessDescriptor.signature,&out,(const u8*)exhdrset->rsf->CommonHeaderKey.AccCtlDescSign, strlen( exhdrset->rsf->CommonHeaderKey.AccCtlDescSign));
if(out != 0x100)
result = POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL;
if(result) goto finish;
memcpy(exhdrset->exHdr->accessDescriptor.ncchRsaPubKey,exhdrset->keys->rsa.cxiHdrPub,0x100);
out = 0x200;
result = base64_decode((u8*)&exhdrset->exHdr->accessDescriptor.arm11SystemLocalCapabilities,&out,(const u8*)exhdrset->rsf->CommonHeaderKey.AccCtlDescBin,strlen(exhdrset->rsf->CommonHeaderKey.AccCtlDescBin));
if(out != 0x200)
result = POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL;
if(result) goto finish;
finish:
return result;
}
int accessdesc_GetSignFromPreset(exheader_settings *exhdrset, ncch_settings *ncchset)
{
u8 *desc = NULL;
u8 *accessDesc = NULL;
u8 *depList = NULL;
u8 *accessDescSig = NULL;
u8 *cxiPubk = NULL;
u8 *cxiPvtk = NULL;
accessdesc_GetPresetData(&desc,&accessDesc,&depList,ncchset);
#ifndef PUBLIC_BUILD
accessdesc_GetPresetSigData(&accessDescSig,&cxiPubk,&cxiPvtk,ncchset);
#endif
// Error Checking
if(!desc || !depList){
fprintf(stderr,"[EXHEADER ERROR] AccessDesc preset is unavailable, please configure RSF file\n");
return CANNOT_SIGN_ACCESSDESC;
}
if((!cxiPubk || !cxiPvtk || !accessDesc || !accessDescSig) && ncchset->keys->rsa.requiresPresignedDesc){
fprintf(stderr,"[EXHEADER ERROR] This AccessDesc preset needs to be signed, the current keyset is incapable of doing so. Please configure RSF file with the appropriate signature data.\n");
return CANNOT_SIGN_ACCESSDESC;
}
// Setting data in Exheader
// Dependency List
memcpy(exhdrset->exHdr->dependencyList,depList,0x180);
// Backing Up Non Preset Data
u8 ProgramID[8];
exhdr_StorageInfo StorageInfoBackup;
exhdr_ARM9AccessControlInfo Arm9Desc;
memcpy(ProgramID,exhdrset->exHdr->arm11SystemLocalCapabilities.programId,8);
memcpy(&StorageInfoBackup,&exhdrset->exHdr->arm11SystemLocalCapabilities.storageInfo,sizeof(exhdr_StorageInfo));
memcpy(&Arm9Desc,&exhdrset->exHdr->arm9AccessControlInfo,sizeof(exhdr_ARM9AccessControlInfo));
// Setting Preset Data
memcpy(&exhdrset->exHdr->arm11SystemLocalCapabilities,desc,0x200);
// Restoring Non Preset Data
memcpy(exhdrset->exHdr->arm11SystemLocalCapabilities.programId,ProgramID,8);
memcpy(&exhdrset->exHdr->arm11SystemLocalCapabilities.storageInfo,&StorageInfoBackup,sizeof(exhdr_StorageInfo));
memcpy(&exhdrset->exHdr->arm9AccessControlInfo,&Arm9Desc,sizeof(exhdr_ARM9AccessControlInfo));
// Setting AccessDesc Area
// Signing normally if possible
if(!ncchset->keys->rsa.requiresPresignedDesc)
return accessdesc_SignWithKey(exhdrset,ncchset);
// Otherwise set static data & ncch hdr sig info
memcpy(exhdrset->keys->rsa.cxiHdrPub,cxiPubk,0x100);
memcpy(exhdrset->keys->rsa.cxiHdrPvt,cxiPvtk,0x100);
memcpy(&exhdrset->exHdr->accessDescriptor.signature,accessDescSig,0x100);
memcpy(&exhdrset->exHdr->accessDescriptor.ncchRsaPubKey,cxiPubk,0x100);
memcpy(&exhdrset->exHdr->accessDescriptor.arm11SystemLocalCapabilities,accessDesc,0x200);
return 0;
}
void accessdesc_GetPresetData(u8 **desc, u8 **accessDesc, u8 **depList, ncch_settings *ncchset)
{
if(ncchset->keys->accessDescSign.presetType == desc_preset_APP){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x1B:
case 0x1C:
*desc = (u8*)app_fw1B_desc_data;
*accessDesc = (u8*)app_fw1B_acex_data;
*depList = (u8*)fw1B_dep_list;
break;
case 0x1D:
*desc = (u8*)app_fw1D_desc_data;
*accessDesc = (u8*)app_fw1D_acex_data;
*depList = (u8*)fw1D_dep_list;
break;
case 0x1E:
*desc = (u8*)app_fw1E_desc_data;
*accessDesc = (u8*)app_fw1E_acex_data;
*depList = (u8*)fw1D_dep_list;
break;
case 0x20:
*desc = (u8*)app_fw20_desc_data;
*accessDesc = (u8*)app_fw20_acex_data;
*depList = (u8*)fw20_dep_list;
break;
case 0x21:
*desc = (u8*)app_fw21_desc_data;
*accessDesc = (u8*)app_fw21_acex_data;
*depList = (u8*)fw21_dep_list;
break;
case 0x23:
*desc = (u8*)app_fw23_desc_data;
*accessDesc = (u8*)app_fw23_acex_data;
*depList = (u8*)fw23_dep_list;
break;
case 0x27:
*desc = (u8*)app_fw27_desc_data;
*accessDesc = (u8*)app_fw27_acex_data;
*depList = (u8*)fw27_dep_list;
break;
}
}
else if(ncchset->keys->accessDescSign.presetType == desc_preset_EC_APP){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x20:
*desc = (u8*)ecapp_fw20_desc_data;
*accessDesc = (u8*)ecapp_fw20_acex_data;
*depList = (u8*)fw20_dep_list;
break;
case 0x23:
*desc = (u8*)ecapp_fw23_desc_data;
*accessDesc = (u8*)ecapp_fw23_acex_data;
*depList = (u8*)fw23_dep_list;
break;
}
}
else if(ncchset->keys->accessDescSign.presetType == desc_preset_DLP){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x1B:
case 0x1C:
*desc = (u8*)dlp_fw1B_desc_data;
*accessDesc = (u8*)dlp_fw1B_acex_data;
*depList = (u8*)fw1B_dep_list;
break;
case 0x1D:
*desc = (u8*)dlp_fw1D_desc_data;
*accessDesc = (u8*)dlp_fw1D_acex_data;
*depList = (u8*)fw1D_dep_list;
break;
case 0x21:
*desc = (u8*)dlp_fw21_desc_data;
*accessDesc = (u8*)dlp_fw21_acex_data;
*depList = (u8*)fw21_dep_list;
break;
}
}
else if(ncchset->keys->accessDescSign.presetType == desc_preset_DEMO){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x1E:
*desc = (u8*)demo_fw1E_desc_data;
*accessDesc = (u8*)demo_fw1E_acex_data;
*depList = (u8*)fw1D_dep_list;
break;
case 0x21:
*desc = (u8*)demo_fw21_desc_data;
*accessDesc = (u8*)demo_fw21_acex_data;
*depList = (u8*)fw21_dep_list;
break;
}
}
else if(ncchset->keys->accessDescSign.presetType == desc_preset_FIRM){
switch(ncchset->keys->accessDescSign.targetFirmware){
default:
*desc = (u8*)firm_fw26_desc_data;
*accessDesc = (u8*)firm_fw26_acex_data;
*depList = (u8*)firm_fwXX_dep_list;
break;
}
}
}
#ifndef PUBLIC_BUILD
void accessdesc_GetPresetSigData(u8 **accessDescSig, u8 **cxiPubk, u8 **cxiPvtk, ncch_settings *ncchset)
{
if(ncchset->keys->accessDescSign.presetType == desc_preset_APP){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x1B:
case 0x1C:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)app_fw1B_dev_acexsig;
*cxiPubk = (u8*)app_fw1B_dev_hdrpub;
*cxiPvtk = (u8*)app_fw1B_dev_hdrpvt;
}
break;
case 0x1D:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)app_fw1D_dev_acexsig;
*cxiPubk = (u8*)app_fw1D_dev_hdrpub;
*cxiPvtk = (u8*)app_fw1D_dev_hdrpvt;
}
if(ncchset->keys->keyset == pki_PRODUCTION){
*accessDescSig = (u8*)app_fw1D_prod_acexsig;
*cxiPubk = (u8*)app_fw1D_prod_hdrpub;
*cxiPvtk = NULL;
}
break;
case 0x1E:
if(ncchset->keys->keyset == pki_PRODUCTION){
*accessDescSig = (u8*)app_fw1E_prod_acexsig;
*cxiPubk = (u8*)app_fw1E_prod_hdrpub;
*cxiPvtk = NULL;
}
break;
case 0x20:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)app_fw20_dev_acexsig;
*cxiPubk = (u8*)app_fw20_dev_hdrpub;
*cxiPvtk = NULL;
}
else if(ncchset->keys->keyset == pki_PRODUCTION){
*accessDescSig = (u8*)app_fw20_prod_acexsig;
*cxiPubk = (u8*)app_fw20_prod_hdrpub;
*cxiPvtk = NULL;
}
break;
case 0x21:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)app_fw21_dev_acexsig;
*cxiPubk = (u8*)app_fw21_dev_hdrpub;
*cxiPvtk = (u8*)app_fw21_dev_hdrpvt;
}
else if(ncchset->keys->keyset == pki_PRODUCTION){
*accessDescSig = (u8*)app_fw21_prod_acexsig;
*cxiPubk = (u8*)app_fw21_prod_hdrpub;
*cxiPvtk = NULL;
}
break;
case 0x23:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)app_fw23_dev_acexsig;
*cxiPubk = (u8*)app_fw23_dev_hdrpub;
*cxiPvtk = NULL;
}
else if(ncchset->keys->keyset == pki_PRODUCTION){
*accessDescSig = (u8*)app_fw23_prod_acexsig;
*cxiPubk = (u8*)app_fw23_prod_hdrpub;
*cxiPvtk = NULL;
}
break;
case 0x27:
if(ncchset->keys->keyset == pki_PRODUCTION){
*accessDescSig = (u8*)app_fw27_prod_acexsig;
*cxiPubk = (u8*)app_fw27_prod_hdrpub;
*cxiPvtk = NULL;
}
break;
}
}
else if(ncchset->keys->accessDescSign.presetType == desc_preset_EC_APP){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x20:
if(ncchset->keys->keyset == pki_PRODUCTION){
*accessDescSig = (u8*)ecapp_fw20_prod_acexsig;
*cxiPubk = (u8*)ecapp_fw20_prod_hdrpub;
*cxiPvtk = NULL;
}
break;
case 0x23:
if(ncchset->keys->keyset == pki_PRODUCTION){
*accessDescSig = (u8*)ecapp_fw23_prod_acexsig;
*cxiPubk = (u8*)ecapp_fw23_prod_hdrpub;
*cxiPvtk = NULL;
}
break;
}
}
else if(ncchset->keys->accessDescSign.presetType == desc_preset_DLP){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x1B:
case 0x1C:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)dlp_fw1B_dev_acexsig;
*cxiPubk = (u8*)dlp_fw1B_dev_hdrpub;
*cxiPvtk = (u8*)dlp_fw1B_dev_hdrpvt;
}
break;
case 0x1D:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)dlp_fw1D_dev_acexsig;
*cxiPubk = (u8*)dlp_fw1D_dev_hdrpub;
*cxiPvtk = (u8*)dlp_fw1D_dev_hdrpvt;
}
break;
case 0x21:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)dlp_fw21_dev_acexsig;
*cxiPubk = (u8*)dlp_fw21_dev_hdrpub;
*cxiPvtk = (u8*)dlp_fw21_dev_hdrpvt;
}
break;
}
}
else if(ncchset->keys->accessDescSign.presetType == desc_preset_DEMO){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x1E:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)demo_fw1E_dev_acexsig;
*cxiPubk = (u8*)demo_fw1E_dev_hdrpub;
*cxiPvtk = NULL;
}
break;
case 0x21:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)demo_fw21_dev_acexsig;
*cxiPubk = (u8*)demo_fw21_dev_hdrpub;
*cxiPvtk = (u8*)demo_fw21_dev_hdrpvt;
}
break;
}
}
else if(ncchset->keys->accessDescSign.presetType == desc_preset_FIRM){
switch(ncchset->keys->accessDescSign.targetFirmware){
case 0x26:
if(ncchset->keys->keyset == pki_DEVELOPMENT){
*accessDescSig = (u8*)firm_fw26_dev_acexsig;
*cxiPubk = (u8*)firm_fw26_dev_hdrpub;
*cxiPvtk = NULL;
}
break;
}
}
}
#endif
bool IsValidB64Char(char chr)
{
return (isalnum(chr) || chr == '+' || chr == '/' || chr == '=');
}
u32 b64_strlen(char *str)
{
u32 count = 0;
u32 i = 0;
while(str[i] != 0x0){
if(IsValidB64Char(str[i])) {
//printf("Is Valid: %c\n",str[i]);
count++;
}
i++;
}
return count;
}
void b64_strcpy(char *dst, char *src)
{
u32 src_len = strlen(src);
u32 j = 0;
for(u32 i = 0; i < src_len; i++){
if(IsValidB64Char(src[i])){
dst[j] = src[i];
j++;
}
}
dst[j] = 0;
memdump(stdout,"src: ",(u8*)src,src_len+1);
memdump(stdout,"dst: ",(u8*)dst,j+1);
}
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