Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 194 insertions, 0 deletions

diff --git a/src/VBox/Runtime/testcase/tstRTR0MemUserKernel.cpp b/src/VBox/Runtime/testcase/tstRTR0MemUserKernel.cpp
new file mode 100644
index 00000000..55a6b659
--- /dev/null
+++ b/src/VBox/Runtime/testcase/tstRTR0MemUserKernel.cpp
@@ -0,0 +1,194 @@
+/* $Id: tstRTR0MemUserKernel.cpp $ */
+/** @file
+ * IPRT R0 Testcase - Thread Preemption.
+ */
+
+/*
+ * Copyright (C) 2009-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/mem.h>
+
+#include <iprt/errcore.h>
+#include <iprt/param.h>
+#include <iprt/time.h>
+#include <iprt/string.h>
+#include <VBox/sup.h>
+#include "tstRTR0MemUserKernel.h"
+
+
+
+/**
+ * Service request callback function.
+ *
+ * @returns VBox status code.
+ * @param   pSession    The caller's session.
+ * @param   u64Arg      64-bit integer argument.
+ * @param   pReqHdr     The request header. Input / Output. Optional.
+ */
+DECLEXPORT(int) TSTRTR0MemUserKernelSrvReqHandler(PSUPDRVSESSION pSession, uint32_t uOperation,
+                                                  uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr)
+{
+    NOREF(pSession);
+    if (!VALID_PTR(pReqHdr))
+        return VERR_INVALID_PARAMETER;
+    char   *pszErr = (char *)(pReqHdr + 1);
+    size_t  cchErr = pReqHdr->cbReq - sizeof(*pReqHdr);
+    if (cchErr < 32 || cchErr >= 0x10000)
+        return VERR_INVALID_PARAMETER;
+    *pszErr = '\0';
+
+    /*
+     * R3Ptr is valid and good for up to a page. The page before
+     * and after are both invalid. Or, it's a kernel page.
+     */
+    RTR3PTR R3Ptr = (RTR3PTR)u64Arg;
+    if (R3Ptr != u64Arg)
+        return VERR_INVALID_PARAMETER;
+
+    /*
+     * Allocate a kernel buffer.
+     */
+    uint8_t *pbKrnlBuf = (uint8_t *)RTMemAlloc(PAGE_SIZE * 2);
+    if (!pbKrnlBuf)
+    {
+        RTStrPrintf(pszErr, cchErr, "!no memory for kernel buffers");
+        return VINF_SUCCESS;
+    }
+
+    /*
+     * The big switch.
+     */
+    switch (uOperation)
+    {
+        case TSTRTR0MEMUSERKERNEL_SANITY_OK:
+            break;
+
+        case TSTRTR0MEMUSERKERNEL_SANITY_FAILURE:
+            RTStrPrintf(pszErr, cchErr, "!42failure42%1024s", "");
+            break;
+
+        case TSTRTR0MEMUSERKERNEL_BASIC:
+        {
+            int rc = RTR0MemUserCopyFrom(pbKrnlBuf, R3Ptr, PAGE_SIZE);
+            if (rc == VINF_SUCCESS)
+            {
+                rc = RTR0MemUserCopyTo(R3Ptr, pbKrnlBuf, PAGE_SIZE);
+                if (rc == VINF_SUCCESS)
+                {
+                    if (RTR0MemUserIsValidAddr(R3Ptr))
+                    {
+                        if (RTR0MemKernelIsValidAddr(pbKrnlBuf))
+                        {
+                            if (RTR0MemAreKrnlAndUsrDifferent())
+                            {
+                                RTStrPrintf(pszErr, cchErr, "RTR0MemAreKrnlAndUsrDifferent returns true");
+                                if (!RTR0MemUserIsValidAddr((uintptr_t)pbKrnlBuf))
+                                {
+                                    if (!RTR0MemKernelIsValidAddr((void *)R3Ptr))
+                                    {
+                                        /* done */
+                                    }
+                                    else
+                                        RTStrPrintf(pszErr, cchErr, "! #5 - RTR0MemKernelIsValidAddr -> true, expected false");
+                                }
+                                else
+                                    RTStrPrintf(pszErr, cchErr, "! #5 - RTR0MemUserIsValidAddr -> true, expected false");
+                            }
+                            else
+                                RTStrPrintf(pszErr, cchErr, "RTR0MemAreKrnlAndUsrDifferent returns false");
+                        }
+                        else
+                            RTStrPrintf(pszErr, cchErr, "! #4 - RTR0MemKernelIsValidAddr -> false, expected true");
+                    }
+                    else
+                        RTStrPrintf(pszErr, cchErr, "! #3 - RTR0MemUserIsValidAddr -> false, expected true");
+                }
+                else
+                    RTStrPrintf(pszErr, cchErr, "! #2 - RTR0MemUserCopyTo -> %Rrc expected %Rrc", rc, VINF_SUCCESS);
+            }
+            else
+                RTStrPrintf(pszErr, cchErr, "! #1 - RTR0MemUserCopyFrom -> %Rrc expected %Rrc", rc, VINF_SUCCESS);
+            break;
+        }
+
+#define TEST_OFF_SIZE(off, size, rcExpect) \
+    if (1) \
+    { \
+        int rc = RTR0MemUserCopyFrom(pbKrnlBuf, R3Ptr + (off), (size)); \
+        if (rc != (rcExpect)) \
+        { \
+            RTStrPrintf(pszErr, cchErr, "!RTR0MemUserCopyFrom(, +%#x, %#x) -> %Rrc, expected %Rrc", \
+                        (off), (size), rc, (rcExpect)); \
+            break; \
+        } \
+        rc = RTR0MemUserCopyTo(R3Ptr + (off), pbKrnlBuf, (size)); \
+        if (rc != (rcExpect)) \
+        { \
+            RTStrPrintf(pszErr, cchErr, "!RTR0MemUserCopyTo(+%#x,, %#x) -> %Rrc, expected %Rrc", \
+                        (off), (size), rc, (rcExpect)); \
+            break; \
+        } \
+    } else do {} while (0)
+
+        case TSTRTR0MEMUSERKERNEL_GOOD:
+        {
+            for (unsigned off = 0; off < 16 && !*pszErr; off++)
+                for (unsigned cb = 0; cb < PAGE_SIZE - 16; cb++)
+                    TEST_OFF_SIZE(off, cb, VINF_SUCCESS);
+            break;
+        }
+
+        case TSTRTR0MEMUSERKERNEL_BAD:
+        {
+            for (unsigned off = 0; off < 16 && !*pszErr; off++)
+                for (unsigned cb = 0; cb < PAGE_SIZE - 16; cb++)
+                    TEST_OFF_SIZE(off, cb, cb > 0 ? VERR_ACCESS_DENIED : VINF_SUCCESS);
+            break;
+        }
+
+        case TSTRTR0MEMUSERKERNEL_INVALID_ADDRESS:
+        {
+            if (    !RTR0MemUserIsValidAddr(R3Ptr)
+                &&  RTR0MemKernelIsValidAddr((void *)R3Ptr))
+            {
+                for (unsigned off = 0; off < 16 && !*pszErr; off++)
+                    for (unsigned cb = 0; cb < PAGE_SIZE - 16; cb++)
+                        TEST_OFF_SIZE(off, cb, cb > 0 ? VERR_ACCESS_DENIED : VINF_SUCCESS); /* ... */
+            }
+            else
+                RTStrPrintf(pszErr, cchErr, "RTR0MemUserIsValidAddr returns true");
+            break;
+        }
+
+        default:
+            RTStrPrintf(pszErr, cchErr, "!Unknown test #%d", uOperation);
+            break;
+    }
+
+    /* The error indicator is the '!' in the message buffer. */
+    RTMemFree(pbKrnlBuf);
+    return VINF_SUCCESS;
+}
+