mirror of https://github.com/AxioDL/nod.git
427 lines
14 KiB
C++
427 lines
14 KiB
C++
#include "nod/DiscGCN.hpp"
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#include <cinttypes>
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <string>
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#include "nod/nod.hpp"
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#include "nod/Util.hpp"
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#include <logvisor/logvisor.hpp>
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#define BUFFER_SZ 0x8000
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namespace nod {
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class PartitionGCN : public IPartition {
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public:
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PartitionGCN(const DiscGCN& parent, uint64_t offset, bool& err)
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: IPartition(parent, PartitionKind::Data, false, offset) {
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/* GCN-specific header reads */
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std::unique_ptr<IPartReadStream> s = beginReadStream(0x0);
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if (!s) {
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err = true;
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return;
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}
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m_header.read(*s);
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m_bi2Header.read(*s);
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m_dolOff = m_header.m_dolOff;
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m_fstOff = m_header.m_fstOff;
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m_fstSz = m_header.m_fstSz;
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uint32_t vals[2];
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s->seek(0x2440 + 0x14);
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s->read(vals, 8);
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m_apploaderSz = 32 + SBig(vals[0]) + SBig(vals[1]);
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/* Yay files!! */
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parseFST(*s);
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/* Also make DOL header and size handy */
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s->seek(m_dolOff);
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parseDOL(*s);
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}
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class PartReadStream : public IPartReadStream {
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const PartitionGCN& m_parent;
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std::unique_ptr<IReadStream> m_dio;
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uint64_t m_offset;
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size_t m_curBlock = SIZE_MAX;
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uint8_t m_buf[BUFFER_SZ];
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public:
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PartReadStream(const PartitionGCN& parent, uint64_t offset, bool& err) : m_parent(parent), m_offset(offset) {
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size_t block = m_offset / BUFFER_SZ;
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m_dio = m_parent.m_parent.getDiscIO().beginReadStream(block * BUFFER_SZ);
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if (!m_dio) {
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err = true;
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return;
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}
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m_dio->read(m_buf, BUFFER_SZ);
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m_curBlock = block;
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}
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void seek(int64_t offset, int whence) override {
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if (whence == SEEK_SET)
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m_offset = offset;
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else if (whence == SEEK_CUR)
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m_offset += offset;
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else
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return;
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size_t block = m_offset / BUFFER_SZ;
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if (block != m_curBlock) {
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m_dio->seek(block * BUFFER_SZ);
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m_dio->read(m_buf, BUFFER_SZ);
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m_curBlock = block;
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}
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}
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uint64_t position() const override { return m_offset; }
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uint64_t read(void* buf, uint64_t length) override {
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size_t block = m_offset / BUFFER_SZ;
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size_t cacheOffset = m_offset % BUFFER_SZ;
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uint64_t cacheSize;
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uint64_t rem = length;
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uint8_t* dst = (uint8_t*)buf;
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while (rem) {
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if (block != m_curBlock) {
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m_dio->read(m_buf, BUFFER_SZ);
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m_curBlock = block;
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}
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cacheSize = rem;
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if (cacheSize + cacheOffset > BUFFER_SZ)
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cacheSize = BUFFER_SZ - cacheOffset;
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memmove(dst, m_buf + cacheOffset, cacheSize);
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dst += cacheSize;
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rem -= cacheSize;
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cacheOffset = 0;
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++block;
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}
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m_offset += length;
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return dst - (uint8_t*)buf;
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}
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};
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std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset) const override {
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bool Err = false;
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auto ret = std::unique_ptr<IPartReadStream>(new PartReadStream(*this, offset, Err));
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if (Err)
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return {};
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return ret;
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}
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};
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DiscGCN::DiscGCN(std::unique_ptr<IDiscIO>&& dio, bool& err) : DiscBase(std::move(dio), err) {
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if (err)
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return;
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/* One lone partition for GCN */
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m_partitions.emplace_back(new PartitionGCN(*this, 0, err));
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}
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DiscBuilderGCN DiscGCN::makeMergeBuilder(SystemStringView outPath, FProgress progressCB) {
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return DiscBuilderGCN(outPath, progressCB);
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}
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bool DiscGCN::extractDiscHeaderFiles(SystemStringView path, const ExtractionContext& ctx) const { return true; }
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class PartitionBuilderGCN : public DiscBuilderBase::PartitionBuilderBase {
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uint64_t m_curUser = 0x57058000;
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public:
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class PartWriteStream : public IPartWriteStream {
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const PartitionBuilderGCN& m_parent;
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uint64_t m_offset;
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std::unique_ptr<IFileIO::IWriteStream> m_fio;
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public:
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PartWriteStream(const PartitionBuilderGCN& parent, uint64_t offset, bool& err)
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: m_parent(parent), m_offset(offset) {
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m_fio = m_parent.m_parent.getFileIO().beginWriteStream(offset);
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if (!m_fio)
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err = true;
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}
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void close() override { m_fio.reset(); }
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uint64_t position() const override { return m_offset; }
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uint64_t write(const void* buf, uint64_t length) override {
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uint64_t len = m_fio->write(buf, length);
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m_offset += len;
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return len;
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}
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void seek(size_t off) {
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m_offset = off;
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m_fio = m_parent.m_parent.getFileIO().beginWriteStream(off);
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}
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};
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PartitionBuilderGCN(DiscBuilderBase& parent)
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: DiscBuilderBase::PartitionBuilderBase(parent, PartitionKind::Data, false) {}
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uint64_t userAllocate(uint64_t reqSz, IPartWriteStream& ws) override {
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m_curUser -= reqSz;
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m_curUser &= 0xfffffffffffffff0;
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if (m_curUser < 0x30000) {
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LogModule.report(logvisor::Error, fmt("user area low mark reached"));
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return -1;
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}
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static_cast<PartWriteStream&>(ws).seek(m_curUser);
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return m_curUser;
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}
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uint32_t packOffset(uint64_t offset) const override { return offset; }
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std::unique_ptr<IPartWriteStream> beginWriteStream(uint64_t offset) override {
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bool Err = false;
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std::unique_ptr<IPartWriteStream> ret = std::make_unique<PartWriteStream>(*this, offset, Err);
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if (Err)
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return {};
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return ret;
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}
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bool
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_build(const std::function<bool(IPartWriteStream&, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t)>& headerFunc,
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const std::function<bool(IPartWriteStream&)>& bi2Func,
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const std::function<bool(IPartWriteStream&, size_t&)>& apploaderFunc) {
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std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0x2440);
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if (!ws)
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return false;
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size_t xferSz = 0;
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if (!apploaderFunc(*ws, xferSz))
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return false;
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size_t fstOff = ROUND_UP_32(xferSz);
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size_t fstSz = sizeof(FSTNode) * m_buildNodes.size();
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for (size_t i = 0; i < fstOff - xferSz; ++i)
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ws->write("\xff", 1);
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fstOff += 0x2440;
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ws->write(m_buildNodes.data(), fstSz);
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for (const std::string& str : m_buildNames)
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ws->write(str.data(), str.size() + 1);
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fstSz += m_buildNameOff;
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fstSz = ROUND_UP_32(fstSz);
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if (fstOff + fstSz >= m_curUser) {
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LogModule.report(logvisor::Error, fmt("FST flows into user area (one or the other is too big)"));
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return false;
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}
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ws = beginWriteStream(0);
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if (!ws)
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return false;
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if (!headerFunc(*ws, m_dolOffset, fstOff, fstSz, m_curUser, 0x57058000 - m_curUser))
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return false;
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if (!bi2Func(*ws))
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return false;
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return true;
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}
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bool buildFromDirectory(SystemStringView dirIn) {
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std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0);
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if (!ws)
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return false;
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bool result = DiscBuilderBase::PartitionBuilderBase::buildFromDirectory(*ws, dirIn);
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if (!result)
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return false;
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SystemString dirStr(dirIn);
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/* Check Apploader */
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SystemString apploaderIn = dirStr + _SYS_STR("/sys/apploader.img");
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Sstat apploaderStat;
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if (Stat(apploaderIn.c_str(), &apploaderStat)) {
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LogModule.report(logvisor::Error, fmt(_SYS_STR("unable to stat {}")), apploaderIn);
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return false;
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}
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/* Check Boot */
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SystemString bootIn = dirStr + _SYS_STR("/sys/boot.bin");
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Sstat bootStat;
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if (Stat(bootIn.c_str(), &bootStat)) {
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LogModule.report(logvisor::Error, fmt(_SYS_STR("unable to stat {}")), bootIn);
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return false;
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}
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/* Check BI2 */
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SystemString bi2In = dirStr + _SYS_STR("/sys/bi2.bin");
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Sstat bi2Stat;
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if (Stat(bi2In.c_str(), &bi2Stat)) {
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LogModule.report(logvisor::Error, fmt(_SYS_STR("unable to stat {}")), bi2In);
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return false;
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}
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return _build(
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[&bootIn](IPartWriteStream& ws, uint32_t dolOff, uint32_t fstOff, uint32_t fstSz, uint32_t userOff,
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uint32_t userSz) -> bool {
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std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(bootIn.c_str())->beginReadStream();
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if (!rs)
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return false;
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Header header;
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header.read(*rs);
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header.m_dolOff = dolOff;
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header.m_fstOff = fstOff;
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header.m_fstSz = fstSz;
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header.m_fstMaxSz = fstSz;
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header.m_userPosition = userOff;
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header.m_userSz = userSz;
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header.write(ws);
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return true;
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},
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[&bi2In](IPartWriteStream& ws) -> bool {
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std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(bi2In.c_str())->beginReadStream();
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if (!rs)
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return false;
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BI2Header bi2;
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bi2.read(*rs);
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bi2.write(ws);
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return true;
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},
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[this, &apploaderIn](IPartWriteStream& ws, size_t& xferSz) -> bool {
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std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(apploaderIn.c_str())->beginReadStream();
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if (!rs)
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return false;
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char buf[8192];
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while (true) {
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size_t rdSz = rs->read(buf, 8192);
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if (!rdSz)
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break;
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ws.write(buf, rdSz);
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xferSz += rdSz;
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if (0x2440 + xferSz >= m_curUser) {
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LogModule.report(logvisor::Error, fmt("apploader flows into user area (one or the other is too big)"));
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return false;
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}
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m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderIn, xferSz);
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}
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++m_parent.m_progressIdx;
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return true;
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});
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}
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bool mergeFromDirectory(const PartitionGCN* partIn, SystemStringView dirIn) {
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std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0);
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if (!ws)
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return false;
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bool result = DiscBuilderBase::PartitionBuilderBase::mergeFromDirectory(*ws, partIn, dirIn);
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if (!result)
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return false;
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return _build(
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[partIn](IPartWriteStream& ws, uint32_t dolOff, uint32_t fstOff, uint32_t fstSz, uint32_t userOff,
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uint32_t userSz) -> bool {
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Header header = partIn->getHeader();
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header.m_dolOff = dolOff;
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header.m_fstOff = fstOff;
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header.m_fstSz = fstSz;
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header.m_fstMaxSz = fstSz;
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header.m_userPosition = userOff;
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header.m_userSz = userSz;
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header.write(ws);
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return true;
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},
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[partIn](IPartWriteStream& ws) -> bool {
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partIn->getBI2().write(ws);
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return true;
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},
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[this, partIn](IPartWriteStream& ws, size_t& xferSz) -> bool {
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std::unique_ptr<uint8_t[]> apploaderBuf = partIn->getApploaderBuf();
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size_t apploaderSz = partIn->getApploaderSize();
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SystemString apploaderName(_SYS_STR("<apploader>"));
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ws.write(apploaderBuf.get(), apploaderSz);
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xferSz += apploaderSz;
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if (0x2440 + xferSz >= m_curUser) {
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LogModule.report(logvisor::Error, fmt("apploader flows into user area (one or the other is too big)"));
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return false;
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}
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m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderName, xferSz);
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++m_parent.m_progressIdx;
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return true;
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});
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}
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};
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EBuildResult DiscBuilderGCN::buildFromDirectory(SystemStringView dirIn) {
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if (!m_fileIO->beginWriteStream())
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return EBuildResult::Failed;
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if (!CheckFreeSpace(m_outPath.c_str(), 0x57058000)) {
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LogModule.report(logvisor::Error, fmt(_SYS_STR("not enough free disk space for {}")), m_outPath);
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return EBuildResult::DiskFull;
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}
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m_progressCB(getProgressFactor(), _SYS_STR("Preallocating image"), -1);
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++m_progressIdx;
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{
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auto ws = m_fileIO->beginWriteStream(0);
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if (!ws)
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return EBuildResult::Failed;
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char zeroBytes[1024] = {};
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for (uint64_t i = 0; i < 0x57058000; i += 1024)
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ws->write(zeroBytes, 1024);
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}
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PartitionBuilderGCN& pb = static_cast<PartitionBuilderGCN&>(*m_partitions[0]);
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return pb.buildFromDirectory(dirIn) ? EBuildResult::Success : EBuildResult::Failed;
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}
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uint64_t DiscBuilderGCN::CalculateTotalSizeRequired(SystemStringView dirIn) {
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uint64_t sz = DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeBuild(dirIn, PartitionKind::Data, false);
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if (sz == UINT64_MAX)
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return UINT64_MAX;
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sz += 0x30000;
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if (sz > 0x57058000) {
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LogModule.report(logvisor::Error, fmt(_SYS_STR("disc capacity exceeded [{} / {}]")), sz, 0x57058000);
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return UINT64_MAX;
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}
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return sz;
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}
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DiscBuilderGCN::DiscBuilderGCN(SystemStringView outPath, FProgress progressCB)
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: DiscBuilderBase(outPath, 0x57058000, progressCB) {
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PartitionBuilderGCN* partBuilder = new PartitionBuilderGCN(*this);
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m_partitions.emplace_back(partBuilder);
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}
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DiscMergerGCN::DiscMergerGCN(SystemStringView outPath, DiscGCN& sourceDisc, FProgress progressCB)
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: m_sourceDisc(sourceDisc), m_builder(sourceDisc.makeMergeBuilder(outPath, progressCB)) {}
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EBuildResult DiscMergerGCN::mergeFromDirectory(SystemStringView dirIn) {
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if (!m_builder.getFileIO().beginWriteStream())
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return EBuildResult::Failed;
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if (!CheckFreeSpace(m_builder.m_outPath.c_str(), 0x57058000)) {
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LogModule.report(logvisor::Error, fmt(_SYS_STR("not enough free disk space for {}")), m_builder.m_outPath);
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return EBuildResult::DiskFull;
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}
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m_builder.m_progressCB(m_builder.getProgressFactor(), _SYS_STR("Preallocating image"), -1);
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++m_builder.m_progressIdx;
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{
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auto ws = m_builder.m_fileIO->beginWriteStream(0);
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if (!ws)
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return EBuildResult::Failed;
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char zeroBytes[1024] = {};
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for (uint64_t i = 0; i < 0x57058000; i += 1024)
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ws->write(zeroBytes, 1024);
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}
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PartitionBuilderGCN& pb = static_cast<PartitionBuilderGCN&>(*m_builder.m_partitions[0]);
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return pb.mergeFromDirectory(static_cast<PartitionGCN*>(m_sourceDisc.getDataPartition()), dirIn)
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? EBuildResult::Success
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: EBuildResult::Failed;
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}
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uint64_t DiscMergerGCN::CalculateTotalSizeRequired(DiscGCN& sourceDisc, SystemStringView dirIn) {
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uint64_t sz = DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeMerge(sourceDisc.getDataPartition(), dirIn);
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if (sz == UINT64_MAX)
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return UINT64_MAX;
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sz += 0x30000;
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if (sz > 0x57058000) {
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LogModule.report(logvisor::Error, fmt(_SYS_STR("disc capacity exceeded [{} / {}]")), sz, 0x57058000);
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return -1;
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}
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return sz;
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}
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} // namespace nod
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