[reactos] 01/01: [DISKPART] Implement CREATE PARTITION LOGICAL

[Eric Kohl]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=863400813abe6c8dd4720…

commit 863400813abe6c8dd4720997e7fe36325971967e
Author:     Eric Kohl <eric.kohl(a)reactos.org>
AuthorDate: Sun May 29 10:05:51 2022 +0200
Commit:     Eric Kohl <eric.kohl(a)reactos.org>
CommitDate: Sun May 29 10:05:51 2022 +0200

    [DISKPART] Implement CREATE PARTITION LOGICAL
---
 base/system/diskpart/create.c | 173 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 172 insertions(+), 1 deletion(-)

diff --git a/base/system/diskpart/create.c b/base/system/diskpart/create.c
index 9fa6b189cbf..9617b7c4e60 100644
--- a/base/system/diskpart/create.c
+++ b/base/system/diskpart/create.c
@@ -184,13 +184,184 @@ CreateLogicalPartition(
     _In_ INT argc,
     _In_ PWSTR *argv)
 {
+    PPARTENTRY PartEntry, NewPartEntry;
+    PLIST_ENTRY ListEntry;
+    ULONGLONG ullSize = 0ULL;
+    ULONGLONG ullSectorCount;
+#if 0
+    ULONGLONG ullOffset = 0ULL;
+    BOOL bNoErr = FALSE;
+#endif
+    UCHAR PartitionType = 6;
+    INT i, length;
+    PWSTR pszSuffix = NULL;
+
     if (CurrentDisk == NULL)
     {
         ConResPuts(StdOut, IDS_SELECT_NO_DISK);
         return TRUE;
     }
 
-    ConPrintf(StdOut, L"Not implemented yet!\n");
+    for (i = 3; i < argc; i++)
+    {
+        if (HasPrefix(argv[i], L"size=", &pszSuffix))
+        {
+            /* size=<N> (MB) */
+            DPRINT("Size : %s\n", pszSuffix);
+
+            ullSize = _wcstoui64(pszSuffix, NULL, 10);
+            if ((ullSize == 0) && (errno == ERANGE))
+            {
+                ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
+                return TRUE;
+            }
+        }
+        else if (HasPrefix(argv[i], L"offset=", &pszSuffix))
+        {
+            /* offset=<N> (KB) */
+            DPRINT("Offset : %s\n", pszSuffix);
+            ConPuts(StdOut, L"The OFFSET option is not supported yet!\n");
+#if 0
+            ullOffset = _wcstoui64(pszSuffix, NULL, 10);
+            if ((ullOffset == 0) && (errno == ERANGE))
+            {
+                ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
+                return TRUE;
+            }
+#endif
+        }
+        else if (HasPrefix(argv[i], L"id=", &pszSuffix))
+        {
+            /* id=<Byte>|<GUID> */
+            DPRINT("Id : %s\n", pszSuffix);
+
+            length = wcslen(pszSuffix);
+            if ((length == 1) || (length == 2))
+            {
+                /* Byte */
+                PartitionType = (UCHAR)wcstoul(pszSuffix, NULL, 16);
+                if ((PartitionType == 0) && (errno == ERANGE))
+                {
+                    ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
+                    return TRUE;
+                }
+            }
+#if 0
+            else if ()
+            {
+                /* GUID */
+            }
+#endif
+            else
+            {
+                ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
+                return TRUE; 
+            }
+        }
+        else if (HasPrefix(argv[i], L"align=", &pszSuffix))
+        {
+            /* align=<N> */
+            DPRINT("Align : %s\n", pszSuffix);
+            ConPuts(StdOut, L"The ALIGN option is not supported yet!\n");
+#if 0
+            bAlign = TRUE;
+#endif
+        }
+        else if (_wcsicmp(argv[i], L"noerr") == 0)
+        {
+            /* noerr */
+            DPRINT("NoErr\n", pszSuffix);
+            ConPuts(StdOut, L"The NOERR option is not supported yet!\n");
+#if 0
+            bNoErr = TRUE;
+#endif
+        }
+        else
+        {
+            ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
+            return TRUE;
+        }
+    }
+
+    DPRINT1("Size: %I64u\n", ullSize);
+#if 0
+    DPRINT1("Offset: %I64u\n", ullOffset);
+#endif
+    DPRINT1("Partition Type: %hx\n", PartitionType);
+
+    if (ullSize != 0)
+        ullSectorCount = (ullSize * 1024 * 1024) / CurrentDisk->BytesPerSector;
+    else
+        ullSectorCount = 0;
+
+    DPRINT1("SectorCount: %I64u\n", ullSectorCount);
+
+    for (ListEntry = CurrentDisk->LogicalPartListHead.Flink;
+         ListEntry != &CurrentDisk->LogicalPartListHead;
+         ListEntry = ListEntry->Flink)
+    {
+        PartEntry = CONTAINING_RECORD(ListEntry, PARTENTRY, ListEntry);
+        if (PartEntry->IsPartitioned)
+            continue;
+
+        if (ullSectorCount == 0)
+        {
+            PartEntry->IsPartitioned = TRUE;
+            PartEntry->New = TRUE;
+            PartEntry->PartitionType = PartitionType;
+            PartEntry->FormatState = Unformatted;
+            PartEntry->FileSystemName[0] = L'\0';
+
+            CurrentDisk->Dirty = TRUE;
+            break;
+        }
+        else
+        {
+            if (PartEntry->SectorCount.QuadPart == ullSectorCount)
+            {
+                PartEntry->IsPartitioned = TRUE;
+                PartEntry->New = TRUE;
+                PartEntry->PartitionType = PartitionType;
+                PartEntry->FormatState = Unformatted;
+                PartEntry->FileSystemName[0] = L'\0';
+
+                CurrentDisk->Dirty = TRUE;
+                break;
+            }
+            else if (PartEntry->SectorCount.QuadPart > ullSectorCount)
+            {
+                NewPartEntry = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(PPARTENTRY));
+                if (NewPartEntry == NULL)
+                {
+                    ConPuts(StdOut, L"Memory allocation failed!\n");
+                    return TRUE;
+                }
+
+                NewPartEntry->DiskEntry = PartEntry->DiskEntry;
+
+                NewPartEntry->StartSector.QuadPart =
PartEntry->StartSector.QuadPart;
+                NewPartEntry->SectorCount.QuadPart = ullSectorCount;
+
+                NewPartEntry->LogicalPartition = TRUE;
+                NewPartEntry->IsPartitioned = TRUE;
+                NewPartEntry->New = TRUE;
+                NewPartEntry->PartitionType = PartitionType;
+                NewPartEntry->FormatState = Unformatted;
+                NewPartEntry->FileSystemName[0] = L'\0';
+
+                PartEntry->StartSector.QuadPart += ullSectorCount;
+                PartEntry->SectorCount.QuadPart -= ullSectorCount;
+
+                InsertTailList(ListEntry, &NewPartEntry->ListEntry);
+
+                CurrentDisk->Dirty = TRUE;
+                break;
+            }
+        }
+    }
+
+    UpdateDiskLayout(CurrentDisk);
+    WritePartitions(CurrentDisk);
 
     return TRUE;
 }