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Honor sector size change via ModeSelect6 in scsicd (#1406)
* Make ModeSelect() non-const Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Implement ModeSelect for scsicd and honor sector size setting. DEC's VMS can't handle 2k sector sizes and uses ModeSelect6 to set the sector size to 512 bytes. Fixes #1397 Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Test sector size setting via ModeSelect in SCSICD Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Re-calculate total blocks when sector size changes Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Reset CD data tracks after sector size change The track calculation is based on sector size and must be reset after change of sector size. Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * resize cache after change of sector size The disk cache is based on sector size and must be resized when the sector size changes. Disk::ResizeCache needs a `raw` parameter, make this value accessible from the current cache. Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Make GetRawMode const Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> --------- Signed-off-by: Klaus Kämpf <kkaempf@gmail.com>
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@ -696,11 +696,17 @@ uint32_t Disk::GetSectorSizeInBytes() const
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void Disk::SetSectorSizeInBytes(uint32_t size_in_bytes)
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{
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if (!GetSupportedSectorSizes().contains(size_in_bytes)) {
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throw io_exception("Invalid sector size of " + to_string(size_in_bytes) + " byte(s)");
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throw io_exception("Invalid sector size of " + to_string(size_in_bytes) + " byte(s)");
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}
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uint64_t current_blocks = GetBlockCount();
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uint32_t current_size_shift_count = size_shift_count;
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uint64_t current_size = current_blocks << current_size_shift_count;
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size_shift_count = CalculateShiftCount(size_in_bytes);
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assert(size_shift_count);
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if ((current_blocks > 0) && (current_size_shift_count > 0)) {
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SetBlockCount(current_size >> size_shift_count);
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}
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}
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uint32_t Disk::GetConfiguredSectorSize() const
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@ -714,7 +720,7 @@ bool Disk::SetConfiguredSectorSize(uint32_t configured_size)
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return false;
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}
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configured_sector_size = configured_size;
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configured_sector_size = configured_size;
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return true;
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}
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@ -112,7 +112,7 @@ protected:
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void SetUpCache(off_t, bool = false);
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void ResizeCache(const string&, bool);
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bool GetRawMode() const { return (cache?cache->GetRawMode():false); }
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void SetUpModePages(map<int, vector<byte>>&, int, bool) const override;
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void AddErrorPage(map<int, vector<byte>>&, bool) const;
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virtual void AddFormatPage(map<int, vector<byte>>&, bool) const;
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@ -51,6 +51,7 @@ public:
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~DiskCache() = default;
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void SetRawMode(bool b) { cd_raw = b; } // CD-ROM raw mode setting
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bool GetRawMode() const { return cd_raw; }
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bool Save(); // Save and release all
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bool ReadSector(span<uint8_t>, uint32_t); // Sector Read
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@ -114,7 +114,7 @@ void ModePageDevice::ModeSense10() const
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EnterDataInPhase();
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}
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void ModePageDevice::ModeSelect(scsi_command, cdb_t, span<const uint8_t>, int) const
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void ModePageDevice::ModeSelect(scsi_command, cdb_t, span<const uint8_t>, int)
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{
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// There is no default implementation of MODE SELECT
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throw scsi_exception(sense_key::illegal_request, asc::invalid_command_operation_code);
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@ -23,7 +23,7 @@ public:
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bool Init(const param_map&) override;
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virtual void ModeSelect(scsi_defs::scsi_command, cdb_t, span<const uint8_t>, int) const;
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virtual void ModeSelect(scsi_defs::scsi_command, cdb_t, span<const uint8_t>, int);
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protected:
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@ -165,6 +165,29 @@ vector<uint8_t> SCSICD::InquiryInternal() const
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return HandleInquiry(device_type::cd_rom, scsi_level, true);
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}
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void SCSICD::ModeSelect(scsi_command cmd, cdb_t cdb, span<const uint8_t> buf, int length)
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{
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int sector_size = 1 << GetSectorSizeShiftCount();
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int wanted_sector_size;
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// skip Block Descriptor
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int offset = 4;
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// evaluate Mode Parameter Block Descriptor, sector size
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wanted_sector_size = scsi_command_util::GetInt16(buf, offset + 6);
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if (wanted_sector_size != sector_size) {
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LogDebug("Changing sector size from " + to_string(sector_size) + " to " + to_string(wanted_sector_size));
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SetSectorSizeInBytes(wanted_sector_size);
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ClearTrack();
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CreateDataTrack();
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FlushCache();
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ResizeCache(GetFilename(), GetRawMode());
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}
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if (const string result = scsi_command_util::ModeSelect(cmd, cdb, buf, length, sector_size);
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!result.empty()) {
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LogWarn(result);
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}
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}
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void SCSICD::SetUpModePages(map<int, vector<byte>>& pages, int page, bool changeable) const
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{
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Disk::SetUpModePages(pages, page, changeable);
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@ -34,6 +34,7 @@ public:
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vector<uint8_t> InquiryInternal() const override;
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int Read(span<uint8_t>, uint64_t) override;
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void ModeSelect(scsi_defs::scsi_command, cdb_t, span<const uint8_t>, int) override;
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protected:
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@ -82,7 +82,7 @@ vector<uint8_t> SCSIHD::InquiryInternal() const
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return HandleInquiry(device_type::direct_access, scsi_level, IsRemovable());
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}
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void SCSIHD::ModeSelect(scsi_command cmd, cdb_t cdb, span<const uint8_t> buf, int length) const
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void SCSIHD::ModeSelect(scsi_command cmd, cdb_t cdb, span<const uint8_t> buf, int length)
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{
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if (const string result = scsi_command_util::ModeSelect(cmd, cdb, buf, length, 1 << GetSectorSizeShiftCount());
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!result.empty()) {
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@ -37,7 +37,7 @@ public:
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// Commands
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vector<uint8_t> InquiryInternal() const override;
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void ModeSelect(scsi_defs::scsi_command, cdb_t, span<const uint8_t>, int) const override;
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void ModeSelect(scsi_defs::scsi_command, cdb_t, span<const uint8_t>, int) override;
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void AddFormatPage(map<int, vector<byte>>&, bool) const override;
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void AddVendorPage(map<int, vector<byte>>&, int, bool) const override;
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@ -88,7 +88,7 @@ void SCSIMO::AddOptionPage(map<int, vector<byte>>& pages, bool) const
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// Do not report update blocks
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}
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void SCSIMO::ModeSelect(scsi_command cmd, cdb_t cdb, span<const uint8_t> buf, int length) const
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void SCSIMO::ModeSelect(scsi_command cmd, cdb_t cdb, span<const uint8_t> buf, int length)
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{
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if (const string result = scsi_command_util::ModeSelect(cmd, cdb, buf, length, 1 << GetSectorSizeShiftCount());
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!result.empty()) {
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@ -32,7 +32,7 @@ public:
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void Open() override;
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vector<uint8_t> InquiryInternal() const override;
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void ModeSelect(scsi_defs::scsi_command, cdb_t, span<const uint8_t>, int) const override;
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void ModeSelect(scsi_defs::scsi_command, cdb_t, span<const uint8_t>, int) override;
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protected:
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@ -387,6 +387,7 @@ class MockSCSICD : public SCSICD //NOSONAR Ignore inheritance hierarchy depth in
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FRIEND_TEST(ScsiCdTest, GetSectorSizes);
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FRIEND_TEST(ScsiCdTest, SetUpModePages);
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FRIEND_TEST(ScsiCdTest, ReadToc);
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FRIEND_TEST(ScsiCdTest, ModeSelect);
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using SCSICD::SCSICD;
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};
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@ -133,3 +133,26 @@ TEST(ScsiCdTest, ReadToc)
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// Further testing requires filesystem access
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}
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TEST(ScsiCdTest, ModeSelect)
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{
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MockSCSICD cd(0);
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vector<int> cmd(6);
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vector<uint8_t> buf(255);
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cd.SetSectorSizeInBytes(2048);
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// PF
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cmd[1] = 0x10;
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// Length
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buf[3] = 0x08;
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// 2048 bytes per sector
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buf[10] = 0x08;
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// Page 3 (Device Format Page)
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buf[12] = 0x01;
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EXPECT_NO_THROW(cd.ModeSelect(scsi_command::eCmdModeSelect6, cmd, buf, 255)) << "MODE SELECT(6) with sector size 2048 is supported";
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// 512 bytes per sector
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buf[10] = 0x02;
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EXPECT_NO_THROW(cd.ModeSelect(scsi_command::eCmdModeSelect6, cmd, buf, 255)) << "MODE SELECT(6) with sector size 512 is supported";
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}
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