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-rw-r--r--src/WorldStorage/WSSAnvil.cpp70
-rw-r--r--src/WorldStorage/WSSCompact.cpp6
-rw-r--r--src/WorldStorage/WorldStorage.cpp48
-rw-r--r--src/WorldStorage/WorldStorage.h45
4 files changed, 80 insertions, 89 deletions
diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp
index e79cc291d..f78ee405b 100644
--- a/src/WorldStorage/WSSAnvil.cpp
+++ b/src/WorldStorage/WSSAnvil.cpp
@@ -66,8 +66,17 @@ Since only the header is actually in the memory, this number can be high, but st
*/
#define MAX_MCA_FILES 32
-/// The maximum size of an inflated chunk; raw chunk data is 192 KiB, allow 64 KiB more of entities
-#define CHUNK_INFLATE_MAX 256 KiB
+#define LOAD_FAILED(CHX, CHZ) \
+ { \
+ const int RegionX = FAST_FLOOR_DIV(CHX, 32); \
+ const int RegionZ = FAST_FLOOR_DIV(CHZ, 32); \
+ LOGERROR("%s (%d): Loading chunk [%d, %d] from file r.%d.%d.mca failed. " \
+ "The server will now abort in order to avoid further data loss. " \
+ "Please add the reported file and this message to the issue report.", \
+ __FUNCTION__, __LINE__, CHX, CHZ, RegionX, RegionZ \
+ ); \
+ *((volatile int *)0) = 0; /* Crash intentionally */ \
+ }
@@ -248,29 +257,22 @@ cWSSAnvil::cMCAFile * cWSSAnvil::LoadMCAFile(const cChunkCoords & a_Chunk)
bool cWSSAnvil::LoadChunkFromData(const cChunkCoords & a_Chunk, const AString & a_Data)
{
- // Decompress the data:
- char Uncompressed[CHUNK_INFLATE_MAX];
- z_stream strm;
- strm.zalloc = (alloc_func)NULL;
- strm.zfree = (free_func)NULL;
- strm.opaque = NULL;
- inflateInit(&strm);
- strm.next_out = (Bytef *)Uncompressed;
- strm.avail_out = sizeof(Uncompressed);
- strm.next_in = (Bytef *)a_Data.data();
- strm.avail_in = (uInt)a_Data.size();
- int res = inflate(&strm, Z_FINISH);
- inflateEnd(&strm);
- if (res != Z_STREAM_END)
+ // Uncompress the data:
+ AString Uncompressed;
+ int res = InflateString(a_Data.data(), a_Data.size(), Uncompressed);
+ if (res != Z_OK)
{
+ LOGWARNING("Uncompressing chunk [%d, %d] failed: %d", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, res);
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
// Parse the NBT data:
- cParsedNBT NBT(Uncompressed, strm.total_out);
+ cParsedNBT NBT(Uncompressed.data(), Uncompressed.size());
if (!NBT.IsValid())
{
// NBT Parsing failed
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
@@ -317,11 +319,19 @@ bool cWSSAnvil::LoadChunkFromNBT(const cChunkCoords & a_Chunk, const cParsedNBT
int Level = a_NBT.FindChildByName(0, "Level");
if (Level < 0)
{
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
int Sections = a_NBT.FindChildByName(Level, "Sections");
- if ((Sections < 0) || (a_NBT.GetType(Sections) != TAG_List) || (a_NBT.GetChildrenType(Sections) != TAG_Compound))
+ if ((Sections < 0) || (a_NBT.GetType(Sections) != TAG_List))
+ {
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
+ return false;
+ }
+ eTagType SectionsType = a_NBT.GetChildrenType(Sections);
+ if ((SectionsType != TAG_Compound) && (SectionsType != TAG_End))
{
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
for (int Child = a_NBT.GetFirstChild(Sections); Child >= 0; Child = a_NBT.GetNextSibling(Child))
@@ -585,7 +595,7 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con
// Get the BlockEntity's position
int x, y, z;
- if (!GetBlockEntityNBTPos(a_NBT, Child, x, y, z))
+ if (!GetBlockEntityNBTPos(a_NBT, Child, x, y, z) || (y < 0) || (y >= cChunkDef::Height))
{
LOGWARNING("Bad block entity, missing the coords. Will be ignored.");
continue;
@@ -2811,30 +2821,42 @@ bool cWSSAnvil::cMCAFile::GetChunkData(const cChunkCoords & a_Chunk, AString & a
}
unsigned ChunkLocation = ntohl(m_Header[LocalX + 32 * LocalZ]);
unsigned ChunkOffset = ChunkLocation >> 8;
+ if (ChunkOffset <= 2)
+ {
+ return false;
+ }
m_File.Seek((int)ChunkOffset * 4096);
int ChunkSize = 0;
if (m_File.Read(&ChunkSize, 4) != 4)
{
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
ChunkSize = ntohl((u_long)ChunkSize);
char CompressionType = 0;
if (m_File.Read(&CompressionType, 1) != 1)
{
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
if (CompressionType != 2)
{
// Chunk is in an unknown compression
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
ChunkSize--;
// HACK: This depends on the internal knowledge that AString's data() function returns the internal buffer directly
a_Data.assign(ChunkSize, '\0');
- return (m_File.Read((void *)a_Data.data(), ChunkSize) == ChunkSize);
+ if (m_File.Read((void *)a_Data.data(), ChunkSize) == ChunkSize)
+ {
+ return true;
+ }
+ LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
+ return false;
}
@@ -2889,7 +2911,13 @@ bool cWSSAnvil::cMCAFile::SetChunkData(const cChunkCoords & a_Chunk, const AStri
// Store the header:
ChunkSize = ((u_long)a_Data.size() + MCA_CHUNK_HEADER_LENGTH + 4095) / 4096; // Round data size *up* to nearest 4KB sector, make it a sector number
- ASSERT(ChunkSize < 256);
+ if (ChunkSize > 255)
+ {
+ LOGWARNING("Cannot save chunk [%d, %d], the data is too large (%u KiB, maximum is 1024 KiB). Remove some entities and retry.",
+ a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, (unsigned)(ChunkSize * 4)
+ );
+ return false;
+ }
m_Header[LocalX + 32 * LocalZ] = htonl((ChunkSector << 8) | ChunkSize);
if (m_File.Seek(0) < 0)
{
diff --git a/src/WorldStorage/WSSCompact.cpp b/src/WorldStorage/WSSCompact.cpp
index 58f9e3cab..6760186b2 100644
--- a/src/WorldStorage/WSSCompact.cpp
+++ b/src/WorldStorage/WSSCompact.cpp
@@ -980,7 +980,7 @@ bool cWSSCompact::cPAKFile::SaveChunkToData(const cChunkCoords & a_Chunk, cWorld
if (!a_World->GetChunkData(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, Serializer))
{
// Chunk not valid
- LOG("cWSSCompact: Trying to save chunk [%d, %d, %d] that has no data, ignoring request.", a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
+ LOG("cWSSCompact: Trying to save chunk [%d, %d] that has no data, ignoring request.", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
@@ -999,7 +999,7 @@ bool cWSSCompact::cPAKFile::SaveChunkToData(const cChunkCoords & a_Chunk, cWorld
int errorcode = CompressString(Data.data(), Data.size(), CompressedData, m_CompressionFactor);
if (errorcode != Z_OK)
{
- LOGERROR("Error %i compressing data for chunk [%d, %d, %d]", errorcode, a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
+ LOGERROR("Error %i compressing data for chunk [%d, %d]", errorcode, a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
@@ -1010,7 +1010,7 @@ bool cWSSCompact::cPAKFile::SaveChunkToData(const cChunkCoords & a_Chunk, cWorld
sChunkHeader * Header = new sChunkHeader;
if (Header == NULL)
{
- LOGWARNING("Cannot create a new chunk header to save chunk [%d, %d, %d]", a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
+ LOGWARNING("Cannot create a new chunk header to save chunk [%d, %d]", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
return false;
}
Header->m_CompressedSize = (int)CompressedData.size();
diff --git a/src/WorldStorage/WorldStorage.cpp b/src/WorldStorage/WorldStorage.cpp
index 707e8f929..179cf9393 100644
--- a/src/WorldStorage/WorldStorage.cpp
+++ b/src/WorldStorage/WorldStorage.cpp
@@ -141,9 +141,11 @@ size_t cWorldStorage::GetSaveQueueLength(void)
-void cWorldStorage::QueueLoadChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ, bool a_Generate)
+void cWorldStorage::QueueLoadChunk(int a_ChunkX, int a_ChunkZ)
{
- m_LoadQueue.EnqueueItem(sChunkLoad(a_ChunkX, a_ChunkY, a_ChunkZ, a_Generate));
+ ASSERT(m_World->IsChunkQueued(a_ChunkX, a_ChunkZ));
+
+ m_LoadQueue.EnqueueItem(cChunkCoords(a_ChunkX, a_ChunkZ));
m_Event.Set();
}
@@ -151,9 +153,11 @@ void cWorldStorage::QueueLoadChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ, boo
-void cWorldStorage::QueueSaveChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
+void cWorldStorage::QueueSaveChunk(int a_ChunkX, int a_ChunkZ)
{
- m_SaveQueue.EnqueueItemIfNotPresent(cChunkCoords(a_ChunkX, a_ChunkY, a_ChunkZ));
+ ASSERT(m_World->IsChunkValid(a_ChunkX, a_ChunkZ));
+
+ m_SaveQueue.EnqueueItemIfNotPresent(cChunkCoords(a_ChunkX, a_ChunkZ));
m_Event.Set();
}
@@ -161,9 +165,9 @@ void cWorldStorage::QueueSaveChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
-void cWorldStorage::UnqueueLoad(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
+void cWorldStorage::UnqueueLoad(int a_ChunkX, int a_ChunkZ)
{
- m_LoadQueue.Remove(sChunkLoad(a_ChunkX, a_ChunkY, a_ChunkZ, true));
+ m_LoadQueue.Remove(cChunkCoords(a_ChunkX, a_ChunkZ));
}
@@ -242,22 +246,14 @@ void cWorldStorage::Execute(void)
bool cWorldStorage::LoadOneChunk(void)
{
- sChunkLoad ToLoad(0, 0, 0, false);
+ cChunkCoords ToLoad(0, 0);
bool ShouldLoad = m_LoadQueue.TryDequeueItem(ToLoad);
- if (ShouldLoad && !LoadChunk(ToLoad.m_ChunkX, ToLoad.m_ChunkY, ToLoad.m_ChunkZ))
+
+ if (ShouldLoad)
{
- if (ToLoad.m_Generate)
- {
- // The chunk couldn't be loaded, generate it:
- m_World->GetGenerator().QueueGenerateChunk(ToLoad.m_ChunkX, ToLoad.m_ChunkY, ToLoad.m_ChunkZ);
- }
- else
- {
- // TODO: Notify the world that the load has failed:
- // m_World->ChunkLoadFailed(ToLoad.m_ChunkX, ToLoad.m_ChunkY, ToLoad.m_ChunkZ);
- }
+ return LoadChunk(ToLoad.m_ChunkX, ToLoad.m_ChunkZ);
}
- return ShouldLoad;
+ return false;
}
@@ -266,7 +262,7 @@ bool cWorldStorage::LoadOneChunk(void)
bool cWorldStorage::SaveOneChunk(void)
{
- cChunkCoords ToSave(0, 0, 0);
+ cChunkCoords ToSave(0, 0);
bool ShouldSave = m_SaveQueue.TryDequeueItem(ToSave);
if (ShouldSave && m_World->IsChunkValid(ToSave.m_ChunkX, ToSave.m_ChunkZ))
{
@@ -283,15 +279,11 @@ bool cWorldStorage::SaveOneChunk(void)
-bool cWorldStorage::LoadChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
+bool cWorldStorage::LoadChunk(int a_ChunkX, int a_ChunkZ)
{
- if (m_World->IsChunkValid(a_ChunkX, a_ChunkZ))
- {
- // Already loaded (can happen, since the queue is async)
- return true;
- }
+ ASSERT(m_World->IsChunkQueued(a_ChunkX, a_ChunkZ));
- cChunkCoords Coords(a_ChunkX, a_ChunkY, a_ChunkZ);
+ cChunkCoords Coords(a_ChunkX, a_ChunkZ);
// First try the schema that is used for saving
if (m_SaveSchema->LoadChunk(Coords))
@@ -309,7 +301,7 @@ bool cWorldStorage::LoadChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
}
// Notify the chunk owner that the chunk failed to load (sets cChunk::m_HasLoadFailed to true):
- m_World->ChunkLoadFailed(a_ChunkX, a_ChunkY, a_ChunkZ);
+ m_World->ChunkLoadFailed(a_ChunkX, a_ChunkZ);
return false;
}
diff --git a/src/WorldStorage/WorldStorage.h b/src/WorldStorage/WorldStorage.h
index dd07ecb64..fc7e9f84c 100644
--- a/src/WorldStorage/WorldStorage.h
+++ b/src/WorldStorage/WorldStorage.h
@@ -64,13 +64,10 @@ public:
cWorldStorage(void);
~cWorldStorage();
- void QueueLoadChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ, bool a_Generate); // Queues the chunk for loading; if not loaded, the chunk will be generated if a_Generate is true
- void QueueSaveChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ);
+ void QueueLoadChunk(int a_ChunkX, int a_ChunkZ);
+ void QueueSaveChunk(int a_ChunkX, int a_ChunkZ);
- /// Loads the chunk specified; returns true on success, false on failure
- bool LoadChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ);
-
- void UnqueueLoad(int a_ChunkX, int a_ChunkY, int a_ChunkZ);
+ void UnqueueLoad(int a_ChunkX, int a_ChunkZ);
void UnqueueSave(const cChunkCoords & a_Chunk);
bool Start(cWorld * a_World, const AString & a_StorageSchemaName, int a_StorageCompressionFactor); // Hide the cIsThread's Start() method, we need to provide args
@@ -84,40 +81,10 @@ public:
protected:
- struct sChunkLoad
- {
- int m_ChunkX;
- int m_ChunkY;
- int m_ChunkZ;
- bool m_Generate; // If true, the chunk will be generated if it cannot be loaded
-
- sChunkLoad(int a_ChunkX, int a_ChunkY, int a_ChunkZ, bool a_Generate) : m_ChunkX(a_ChunkX), m_ChunkY(a_ChunkY), m_ChunkZ(a_ChunkZ), m_Generate(a_Generate) {}
-
- bool operator ==(const sChunkLoad other) const
- {
- return (
- (this->m_ChunkX == other.m_ChunkX) &&
- (this->m_ChunkY == other.m_ChunkY) &&
- (this->m_ChunkZ == other.m_ChunkZ)
- );
- }
- } ;
-
- struct FuncTable
- {
- static void Delete(sChunkLoad) {}
- static void Combine(sChunkLoad & a_orig, const sChunkLoad a_new)
- {
- a_orig.m_Generate |= a_new.m_Generate;
- }
- };
-
- typedef cQueue<sChunkLoad, FuncTable> sChunkLoadQueue;
-
cWorld * m_World;
AString m_StorageSchemaName;
- sChunkLoadQueue m_LoadQueue;
+ cChunkCoordsQueue m_LoadQueue;
cChunkCoordsQueue m_SaveQueue;
/// All the storage schemas (all used for loading)
@@ -125,7 +92,11 @@ protected:
/// The one storage schema used for saving
cWSSchema * m_SaveSchema;
+
+ /// Loads the chunk specified; returns true on success, false on failure
+ bool LoadChunk(int a_ChunkX, int a_ChunkZ);
+
void InitSchemas(int a_StorageCompressionFactor);
virtual void Execute(void) override;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 06:41:12 +0100