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https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
Code restyling.
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@@ -54,10 +54,14 @@ namespace Aaru.Filesystems
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public bool Identify(IMediaImage imagePlugin, Partition partition)
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{
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uint bootSectors = JFS_BOOT_BLOCKS_SIZE / imagePlugin.Info.SectorSize;
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if(partition.Start + bootSectors >= partition.End) return false;
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if(partition.Start + bootSectors >= partition.End)
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return false;
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byte[] sector = imagePlugin.ReadSector(partition.Start + bootSectors);
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if(sector.Length < 512) return false;
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if(sector.Length < 512)
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return false;
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JfsSuperBlock jfsSb = Marshal.ByteArrayToStructureLittleEndian<JfsSuperBlock>(sector);
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@@ -65,14 +69,16 @@ namespace Aaru.Filesystems
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}
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public void GetInformation(IMediaImage imagePlugin, Partition partition, out string information,
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Encoding encoding)
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Encoding encoding)
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{
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Encoding = encoding ?? Encoding.GetEncoding("iso-8859-15");
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information = "";
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StringBuilder sb = new StringBuilder();
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uint bootSectors = JFS_BOOT_BLOCKS_SIZE / imagePlugin.Info.SectorSize;
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byte[] sector = imagePlugin.ReadSector(partition.Start + bootSectors);
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if(sector.Length < 512) return;
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var sb = new StringBuilder();
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uint bootSectors = JFS_BOOT_BLOCKS_SIZE / imagePlugin.Info.SectorSize;
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byte[] sector = imagePlugin.ReadSector(partition.Start + bootSectors);
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if(sector.Length < 512)
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return;
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JfsSuperBlock jfsSb = Marshal.ByteArrayToStructureLittleEndian<JfsSuperBlock>(sector);
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@@ -81,46 +87,93 @@ namespace Aaru.Filesystems
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sb.AppendFormat("{0} blocks of {1} bytes", jfsSb.s_size, jfsSb.s_bsize).AppendLine();
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sb.AppendFormat("{0} blocks per allocation group", jfsSb.s_agsize).AppendLine();
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if(jfsSb.s_flags.HasFlag(JfsFlags.Unicode)) sb.AppendLine("Volume uses Unicode for directory entries");
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if(jfsSb.s_flags.HasFlag(JfsFlags.RemountRO)) sb.AppendLine("Volume remounts read-only on error");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Continue)) sb.AppendLine("Volume continues on error");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Panic)) sb.AppendLine("Volume panics on error");
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if(jfsSb.s_flags.HasFlag(JfsFlags.UserQuota)) sb.AppendLine("Volume has user quotas enabled");
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if(jfsSb.s_flags.HasFlag(JfsFlags.GroupQuota)) sb.AppendLine("Volume has group quotas enabled");
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if(jfsSb.s_flags.HasFlag(JfsFlags.NoJournal)) sb.AppendLine("Volume is not using any journal");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Unicode))
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sb.AppendLine("Volume uses Unicode for directory entries");
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if(jfsSb.s_flags.HasFlag(JfsFlags.RemountRO))
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sb.AppendLine("Volume remounts read-only on error");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Continue))
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sb.AppendLine("Volume continues on error");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Panic))
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sb.AppendLine("Volume panics on error");
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if(jfsSb.s_flags.HasFlag(JfsFlags.UserQuota))
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sb.AppendLine("Volume has user quotas enabled");
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if(jfsSb.s_flags.HasFlag(JfsFlags.GroupQuota))
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sb.AppendLine("Volume has group quotas enabled");
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if(jfsSb.s_flags.HasFlag(JfsFlags.NoJournal))
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sb.AppendLine("Volume is not using any journal");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Discard))
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sb.AppendLine("Volume sends TRIM/UNMAP commands to underlying device");
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if(jfsSb.s_flags.HasFlag(JfsFlags.GroupCommit)) sb.AppendLine("Volume commits in groups of 1");
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if(jfsSb.s_flags.HasFlag(JfsFlags.LazyCommit)) sb.AppendLine("Volume commits lazy");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Temporary)) sb.AppendLine("Volume does not commit to log");
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if(jfsSb.s_flags.HasFlag(JfsFlags.InlineLog)) sb.AppendLine("Volume has log withing itself");
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if(jfsSb.s_flags.HasFlag(JfsFlags.GroupCommit))
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sb.AppendLine("Volume commits in groups of 1");
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if(jfsSb.s_flags.HasFlag(JfsFlags.LazyCommit))
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sb.AppendLine("Volume commits lazy");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Temporary))
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sb.AppendLine("Volume does not commit to log");
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if(jfsSb.s_flags.HasFlag(JfsFlags.InlineLog))
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sb.AppendLine("Volume has log withing itself");
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if(jfsSb.s_flags.HasFlag(JfsFlags.InlineMoving))
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sb.AppendLine("Volume has log withing itself and is moving it out");
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if(jfsSb.s_flags.HasFlag(JfsFlags.BadSAIT)) sb.AppendLine("Volume has bad current secondary ait");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Sparse)) sb.AppendLine("Volume supports sparse files");
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if(jfsSb.s_flags.HasFlag(JfsFlags.DASDEnabled)) sb.AppendLine("Volume has DASD limits enabled");
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if(jfsSb.s_flags.HasFlag(JfsFlags.DASDPrime)) sb.AppendLine("Volume primes DASD on boot");
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if(jfsSb.s_flags.HasFlag(JfsFlags.SwapBytes)) sb.AppendLine("Volume is in a big-endian system");
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if(jfsSb.s_flags.HasFlag(JfsFlags.DirIndex)) sb.AppendLine("Volume has presistent indexes");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Linux)) sb.AppendLine("Volume supports Linux");
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if(jfsSb.s_flags.HasFlag(JfsFlags.DFS)) sb.AppendLine("Volume supports DCE DFS LFS");
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if(jfsSb.s_flags.HasFlag(JfsFlags.OS2)) sb.AppendLine("Volume supports OS/2, and is case insensitive");
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if(jfsSb.s_flags.HasFlag(JfsFlags.AIX)) sb.AppendLine("Volume supports AIX");
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if(jfsSb.s_state != 0) sb.AppendLine("Volume is dirty");
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if(jfsSb.s_flags.HasFlag(JfsFlags.BadSAIT))
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sb.AppendLine("Volume has bad current secondary ait");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Sparse))
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sb.AppendLine("Volume supports sparse files");
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if(jfsSb.s_flags.HasFlag(JfsFlags.DASDEnabled))
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sb.AppendLine("Volume has DASD limits enabled");
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if(jfsSb.s_flags.HasFlag(JfsFlags.DASDPrime))
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sb.AppendLine("Volume primes DASD on boot");
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if(jfsSb.s_flags.HasFlag(JfsFlags.SwapBytes))
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sb.AppendLine("Volume is in a big-endian system");
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if(jfsSb.s_flags.HasFlag(JfsFlags.DirIndex))
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sb.AppendLine("Volume has presistent indexes");
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if(jfsSb.s_flags.HasFlag(JfsFlags.Linux))
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sb.AppendLine("Volume supports Linux");
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if(jfsSb.s_flags.HasFlag(JfsFlags.DFS))
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sb.AppendLine("Volume supports DCE DFS LFS");
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if(jfsSb.s_flags.HasFlag(JfsFlags.OS2))
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sb.AppendLine("Volume supports OS/2, and is case insensitive");
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if(jfsSb.s_flags.HasFlag(JfsFlags.AIX))
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sb.AppendLine("Volume supports AIX");
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if(jfsSb.s_state != 0)
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sb.AppendLine("Volume is dirty");
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sb.AppendFormat("Volume was last updated on {0}",
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DateHandlers.UnixUnsignedToDateTime(jfsSb.s_time.tv_sec, jfsSb.s_time.tv_nsec))
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.AppendLine();
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DateHandlers.UnixUnsignedToDateTime(jfsSb.s_time.tv_sec, jfsSb.s_time.tv_nsec)).
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AppendLine();
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if(jfsSb.s_version == 1)
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sb.AppendFormat("Volume name: {0}", StringHandlers.CToString(jfsSb.s_fpack, Encoding)).AppendLine();
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else sb.AppendFormat("Volume name: {0}", StringHandlers.CToString(jfsSb.s_label, Encoding)).AppendLine();
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else
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sb.AppendFormat("Volume name: {0}", StringHandlers.CToString(jfsSb.s_label, Encoding)).AppendLine();
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sb.AppendFormat("Volume UUID: {0}", jfsSb.s_uuid).AppendLine();
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XmlFsType = new FileSystemType
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{
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Type = "JFS filesystem",
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Clusters = jfsSb.s_size,
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ClusterSize = jfsSb.s_bsize,
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Bootable = true,
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Type = "JFS filesystem", Clusters = jfsSb.s_size, ClusterSize = jfsSb.s_bsize,
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Bootable = true,
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VolumeName =
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StringHandlers.CToString(jfsSb.s_version == 1 ? jfsSb.s_fpack : jfsSb.s_label, Encoding),
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VolumeSerial = $"{jfsSb.s_uuid}",
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@@ -128,7 +181,9 @@ namespace Aaru.Filesystems
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DateHandlers.UnixUnsignedToDateTime(jfsSb.s_time.tv_sec, jfsSb.s_time.tv_nsec),
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ModificationDateSpecified = true
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};
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if(jfsSb.s_state != 0) XmlFsType.Dirty = true;
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if(jfsSb.s_state != 0)
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XmlFsType.Dirty = true;
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information = sb.ToString();
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}
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@@ -136,47 +191,27 @@ namespace Aaru.Filesystems
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[Flags]
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enum JfsFlags : uint
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{
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Unicode = 0x00000001,
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RemountRO = 0x00000002,
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Continue = 0x00000004,
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Panic = 0x00000008,
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UserQuota = 0x00000010,
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GroupQuota = 0x00000020,
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NoJournal = 0x00000040,
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Discard = 0x00000080,
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GroupCommit = 0x00000100,
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LazyCommit = 0x00000200,
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Temporary = 0x00000400,
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InlineLog = 0x00000800,
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InlineMoving = 0x00001000,
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BadSAIT = 0x00010000,
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Sparse = 0x00020000,
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DASDEnabled = 0x00040000,
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DASDPrime = 0x00080000,
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SwapBytes = 0x00100000,
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DirIndex = 0x00200000,
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Linux = 0x10000000,
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DFS = 0x20000000,
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OS2 = 0x40000000,
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AIX = 0x80000000
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Unicode = 0x00000001, RemountRO = 0x00000002, Continue = 0x00000004,
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Panic = 0x00000008, UserQuota = 0x00000010, GroupQuota = 0x00000020,
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NoJournal = 0x00000040, Discard = 0x00000080, GroupCommit = 0x00000100,
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LazyCommit = 0x00000200, Temporary = 0x00000400, InlineLog = 0x00000800,
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InlineMoving = 0x00001000, BadSAIT = 0x00010000, Sparse = 0x00020000,
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DASDEnabled = 0x00040000, DASDPrime = 0x00080000, SwapBytes = 0x00100000,
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DirIndex = 0x00200000, Linux = 0x10000000, DFS = 0x20000000,
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OS2 = 0x40000000, AIX = 0x80000000
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}
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[Flags]
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enum JfsState : uint
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{
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Clean = 0,
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Mounted = 1,
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Dirty = 2,
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Logredo = 4,
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Extendfs = 8
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Clean = 0, Mounted = 1, Dirty = 2,
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Logredo = 4, Extendfs = 8
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct JfsExtent
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{
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/// <summary>
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/// Leftmost 24 bits are extent length, rest 8 bits are most significant for <see cref="addr2" />
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/// </summary>
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/// <summary>Leftmost 24 bits are extent length, rest 8 bits are most significant for <see cref="addr2" /></summary>
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public readonly uint len_addr;
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public readonly uint addr2;
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}
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