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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Devices/Storage/VSCSI/VSCSIVpdPagePool.cpp
parentInitial commit. (diff)
downloadvirtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz
virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Devices/Storage/VSCSI/VSCSIVpdPagePool.cpp')
-rw-r--r--src/VBox/Devices/Storage/VSCSI/VSCSIVpdPagePool.cpp128
1 files changed, 128 insertions, 0 deletions
diff --git a/src/VBox/Devices/Storage/VSCSI/VSCSIVpdPagePool.cpp b/src/VBox/Devices/Storage/VSCSI/VSCSIVpdPagePool.cpp
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+++ b/src/VBox/Devices/Storage/VSCSI/VSCSIVpdPagePool.cpp
@@ -0,0 +1,128 @@
+/* $Id: VSCSIVpdPagePool.cpp $ */
+/** @file
+ * Virtual SCSI driver: VPD page pool
+ */
+
+/*
+ * Copyright (C) 2011-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#define LOG_GROUP LOG_GROUP_VSCSI
+#include <VBox/log.h>
+#include <VBox/err.h>
+#include <iprt/mem.h>
+#include <iprt/assert.h>
+
+#include "VSCSIInternal.h"
+
+
+/*********************************************************************************************************************************
+* Structures and Typedefs *
+*********************************************************************************************************************************/
+
+/**
+ * A VSCSI VPD page.
+ */
+typedef struct VSCSIVPDPAGE
+{
+ /** List node. */
+ RTLISTNODE NodePages;
+ /** Page size. */
+ size_t cbPage;
+ /** Page data - variable size. */
+ uint8_t abPage[1];
+} VSCSIVPDPAGE;
+/** Pointer to a VPD page. */
+typedef VSCSIVPDPAGE *PVSCSIVPDPAGE;
+
+
+/*********************************************************************************************************************************
+* Internal Functions *
+*********************************************************************************************************************************/
+
+int vscsiVpdPagePoolInit(PVSCSIVPDPOOL pVScsiVpdPool)
+{
+ RTListInit(&pVScsiVpdPool->ListPages);
+ return VINF_SUCCESS;
+}
+
+
+void vscsiVpdPagePoolDestroy(PVSCSIVPDPOOL pVScsiVpdPool)
+{
+ PVSCSIVPDPAGE pIt, pItNext;
+
+ RTListForEachSafe(&pVScsiVpdPool->ListPages, pIt, pItNext, VSCSIVPDPAGE, NodePages)
+ {
+ RTListNodeRemove(&pIt->NodePages);
+ RTMemFree(pIt);
+ }
+}
+
+
+int vscsiVpdPagePoolAllocNewPage(PVSCSIVPDPOOL pVScsiVpdPool, uint8_t uPage, size_t cbPage, uint8_t **ppbPage)
+{
+ int rc = VINF_SUCCESS;
+ PVSCSIVPDPAGE pPage;
+
+ /* Check that the page doesn't exist already. */
+ RTListForEach(&pVScsiVpdPool->ListPages, pPage, VSCSIVPDPAGE, NodePages)
+ {
+ if (pPage->abPage[1] == uPage)
+ return VERR_ALREADY_EXISTS;
+ }
+
+ pPage = (PVSCSIVPDPAGE)RTMemAllocZ(RT_UOFFSETOF_DYN(VSCSIVPDPAGE, abPage[cbPage]));
+ if (pPage)
+ {
+ pPage->cbPage = cbPage;
+ pPage->abPage[1] = uPage;
+ RTListAppend(&pVScsiVpdPool->ListPages, &pPage->NodePages);
+ *ppbPage = &pPage->abPage[0];
+ }
+ else
+ rc = VERR_NO_MEMORY;
+
+ return rc;
+}
+
+
+int vscsiVpdPagePoolQueryPage(PVSCSIVPDPOOL pVScsiVpdPool, PVSCSIREQINT pVScsiReq, uint8_t uPage)
+{
+ PVSCSIVPDPAGE pPage;
+
+ /* Check that the page doesn't exist already. */
+ RTListForEach(&pVScsiVpdPool->ListPages, pPage, VSCSIVPDPAGE, NodePages)
+ {
+ if (pPage->abPage[1] == uPage)
+ {
+ vscsiReqSetXferSize(pVScsiReq, pPage->cbPage);
+ RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, &pPage->abPage[0], pPage->cbPage);
+ return VINF_SUCCESS;
+ }
+ }
+
+ return VERR_NOT_FOUND;
+}
+