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Merge pull request #4900 from leoetlino/exheader-fix
ncch_container: Fix NCCH decryption heuristic when replacing exheader
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commit
360e6cb513
@ -325,20 +325,11 @@ Loader::ResultStatus NCCHContainer::Load() {
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return file && file.ReadBytes(&exheader_header, size) == size;
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return file && file.ReadBytes(&exheader_header, size) == size;
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};
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};
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FileUtil::IOFile exheader_override_file{filepath + ".exheader", "rb"};
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if (!read_exheader(file)) {
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const bool has_exheader_override = read_exheader(exheader_override_file);
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if (has_exheader_override) {
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if (exheader_header.system_info.jump_id !=
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exheader_header.arm11_system_local_caps.program_id) {
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LOG_WARNING(Service_FS, "Jump ID and Program ID don't match. "
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"The override exheader might not be decrypted.");
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}
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is_tainted = true;
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} else if (!read_exheader(file)) {
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return Loader::ResultStatus::Error;
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return Loader::ResultStatus::Error;
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}
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}
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if (!has_exheader_override && is_encrypted) {
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if (is_encrypted) {
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// This ID check is masked to low 32-bit as a toleration to ill-formed ROM created
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// This ID check is masked to low 32-bit as a toleration to ill-formed ROM created
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// by merging games and its updates.
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// by merging games and its updates.
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if ((exheader_header.system_info.jump_id & 0xFFFFFFFF) ==
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if ((exheader_header.system_info.jump_id & 0xFFFFFFFF) ==
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@ -358,6 +349,17 @@ Loader::ResultStatus NCCHContainer::Load() {
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}
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}
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}
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}
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FileUtil::IOFile exheader_override_file{filepath + ".exheader", "rb"};
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const bool has_exheader_override = read_exheader(exheader_override_file);
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if (has_exheader_override) {
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if (exheader_header.system_info.jump_id !=
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exheader_header.arm11_system_local_caps.program_id) {
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LOG_WARNING(Service_FS, "Jump ID and Program ID don't match. "
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"The override exheader might not be decrypted.");
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}
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is_tainted = true;
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}
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is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
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is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
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u32 entry_point = exheader_header.codeset_info.text.address;
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u32 entry_point = exheader_header.codeset_info.text.address;
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u32 code_size = exheader_header.codeset_info.text.code_size;
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u32 code_size = exheader_header.codeset_info.text.code_size;
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