Function Ext2BuildEntry

Ext4Fsd/memory.c:444–485

struct dentry *Ext2BuildEntry(PEXT2_VCB Vcb, PEXT2_MCB Dcb, PUNICODE_STRING FileName)
{
    OEM_STRING      Oem = { 0 };
    struct dentry  *de = NULL;
    NTSTATUS        Status = STATUS_INSUFFICIENT_RESOURCES;

    __try {

        de = Ext2AllocateEntry();
        if (!de) {
            DEBUG(DL_ERR, ("Ext2BuildEntry: failed to allocate dentry.\n"));
            __leave;
        }
        de->d_sb = &Vcb->sb;
        if (Dcb)
            de->d_parent = Dcb->de;

        Oem.MaximumLength = (USHORT)Ext2UnicodeToOEMSize(Vcb, FileName) + 1;
        Oem.Buffer = Ext2AllocatePool(PagedPool, Oem.MaximumLength, 'EB2E');
        if (!Oem.Buffer) {
            DEBUG(DL_ERR, ( "Ex2BuildEntry: failed to allocate OEM name.\n"));
            __leave;
        }
        de->d_name.name = Oem.Buffer;
        RtlZeroMemory(Oem.Buffer, Oem.MaximumLength);
        Status = Ext2UnicodeToOEM(Vcb, &Oem, FileName);
        if (!NT_SUCCESS(Status)) {
            DEBUG(DL_CP, ("Ext2BuildEntry: failed to convert %S to OEM.\n", FileName->Buffer));
            __leave;
        }
        de->d_name.len  = Oem.Length;

    } __finally {

        if (!NT_SUCCESS(Status)) {
            if (de)
                Ext2FreeEntry(de);
        }
    }

    return de;
}

PEXT2_EXTENT
Ext2AllocateExtent ()