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msnfs41client: Misc patches, 2025-11-03
Posted by Anonymous on Mon 3rd Nov 2025 20:46
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From aa4566da2912c8a57d97a58ddd6cb79de650effd Mon Sep 17 00:00:00 2001 From: Roland Mainz <roland.mainz@nrubsig.org> Date: Thu, 30 Oct 2025 12:01:52 +0100 Subject: [PATCH 1/3] sys: Use |RxContext->CurrentIrp->MdlAddress| for directory query data Use |RxContext->CurrentIrp->MdlAddress| for directory query data. This also removes locking/unlocking of the memory pages, because |RxContext->CurrentIrp->MdlAddress| is already locked by RDBSS via |RxLockUserBuffer(RxContext->CurrentIrp, IoModifyAccess, ...)| (to fill |RxContext->Info.Buffer|) before calling |nfs41_QueryDirectory()|. Reported-by: Dan Shelton <dan.f.shelton@gmail.com> Signed-off-by: Cedric Blancher <cedric.blancher@gmail.com> --- sys/nfs41sys_dir.c | 41 ++++++++++++++++----------------------- sys/nfs41sys_updowncall.c | 2 -- 2 files changed, 17 insertions(+), 26 deletions(-) diff --git a/sys/nfs41sys_dir.c b/sys/nfs41sys_dir.c index 7e6e4a0..674720b 100644 --- a/sys/nfs41sys_dir.c +++ b/sys/nfs41sys_dir.c @@ -103,6 +103,15 @@ NTSTATUS marshal_nfs41_dirquery( RtlCopyMemory(tmp, &entry->u.QueryFile.return_single, sizeof(BOOLEAN)); tmp += sizeof(BOOLEAN); +#pragma warning( push ) +/* + * C28145: "The opaque MDL structure should not be modified by a + * driver.", |MDL_MAPPING_CAN_FAIL| is the exception + */ +#pragma warning (disable : 28145) + entry->u.QueryFile.mdl->MdlFlags |= MDL_MAPPING_CAN_FAIL; +#pragma warning( pop ) + status = nfs41_MapLockedPagesInNfsDaemonAddressSpace( &entry->u.QueryFile.mdl_buf, entry->u.QueryFile.mdl, @@ -264,29 +273,18 @@ NTSTATUS nfs41_QueryDirectory( entry->u.QueryFile.InfoClass = InfoClass; entry->u.QueryFile.buf_len = RxContext->Info.LengthRemaining; - entry->u.QueryFile.mdl = IoAllocateMdl(RxContext->Info.Buffer, - RxContext->Info.LengthRemaining, FALSE, FALSE, NULL); + /* + * |RxContext->CurrentIrp->MdlAddress| is already locked by RDBSS via + * |RxLockUserBuffer(RxContext->CurrentIrp, IoModifyAccess, ...)| (to + * fill |RxContext->Info.Buffer|) before calling + * |nfs41_QueryDirectory()|, so we do not have to lock/unlock it + * ourselves + */ + entry->u.QueryFile.mdl = RxContext->CurrentIrp->MdlAddress; if (entry->u.QueryFile.mdl == NULL) { status = STATUS_INTERNAL_ERROR; goto out; } -#pragma warning( push ) -/* - * C28145: "The opaque MDL structure should not be modified by a - * driver.", |MDL_MAPPING_CAN_FAIL| is the exception - */ -#pragma warning (disable : 28145) - entry->u.QueryFile.mdl->MdlFlags |= MDL_MAPPING_CAN_FAIL; -#pragma warning( pop ) - - status = nfs41_ProbeAndLockKernelPages(entry->u.QueryFile.mdl, - IoModifyAccess); - if (status) { - DbgP("nfs41_QueryDirectory: " - "nfs41_ProbeAndLockKernelPages() failed, status=0x%lx\n", - (long)status); - goto out; - } entry->u.QueryFile.filter = Filter; entry->u.QueryFile.initial_query = RxContext->QueryDirectory.InitialQuery; @@ -325,11 +323,6 @@ NTSTATUS nfs41_QueryDirectory( out: if (entry) { - if (entry->u.QueryFile.mdl) { - (void)nfs41_UnlockKernelPages(entry->u.QueryFile.mdl); - IoFreeMdl(entry->u.QueryFile.mdl); - entry->u.QueryFile.mdl = NULL; - } nfs41_UpcallDestroy(entry); } #ifdef ENABLE_TIMINGS diff --git a/sys/nfs41sys_updowncall.c b/sys/nfs41sys_updowncall.c index 5a4c250..c1a0310 100644 --- a/sys/nfs41sys_updowncall.c +++ b/sys/nfs41sys_updowncall.c @@ -694,8 +694,6 @@ NTSTATUS nfs41_downcall( (void)nfs41_UnmapLockedKernelPagesInNfsDaemonAddressSpace( cur->u.QueryFile.mdl_buf, cur->u.QueryFile.mdl); - (void)nfs41_UnlockKernelPages(cur->u.QueryFile.mdl); - IoFreeMdl(cur->u.QueryFile.mdl); cur->u.QueryFile.mdl_buf = NULL; cur->u.QueryFile.mdl = NULL; } -- 2.51.0 From 162fb403361bece5f68e66e840c332e278761970 Mon Sep 17 00:00:00 2001 From: Roland Mainz <roland.mainz@nrubsig.org> Date: Thu, 30 Oct 2025 12:52:22 +0100 Subject: [PATCH 2/3] sys: Add debug output in codepaths for invalid/unsupported parameters Add debug output in codepaths for invalid/unsupported parameters. Signed-off-by: Cedric Blancher <cedric.blancher@gmail.com> --- sys/nfs41sys_acl.c | 11 ++++++++--- sys/nfs41sys_dir.c | 4 +++- sys/nfs41sys_fileinfo.c | 4 ++++ sys/nfs41sys_fsctl.c | 9 +++++++++ sys/nfs41sys_lock.c | 4 +++- sys/nfs41sys_openclose.c | 1 + sys/nfs41sys_readwrite.c | 9 +++++++-- 7 files changed, 35 insertions(+), 7 deletions(-) diff --git a/sys/nfs41sys_acl.c b/sys/nfs41sys_acl.c index d9647b9..3cab187 100644 --- a/sys/nfs41sys_acl.c +++ b/sys/nfs41sys_acl.c @@ -206,15 +206,19 @@ NTSTATUS check_nfs41_getacl_args( SECURITY_INFORMATION info_class = RxContext->CurrentIrpSp->Parameters.QuerySecurity.SecurityInformation; - /* we don't support sacls */ + /* we don't support sacls (yet) */ if (info_class == SACL_SECURITY_INFORMATION || info_class == LABEL_SECURITY_INFORMATION) { + DbgP("check_nfs41_getacl_args: SACLs not supported (yet)\n"); status = STATUS_NOT_SUPPORTED; goto out; } if (RxContext->CurrentIrp->UserBuffer == NULL && - RxContext->CurrentIrpSp->Parameters.QuerySecurity.Length) + RxContext->CurrentIrpSp->Parameters.QuerySecurity.Length) { + DbgP("check_nfs41_getacl_args: " + "RxContext->CurrentIrp->UserBuffer == NULL\n"); status = STATUS_INVALID_USER_BUFFER; + } out: return status; } @@ -397,9 +401,10 @@ NTSTATUS check_nfs41_setacl_args( status = STATUS_MEDIA_WRITE_PROTECTED; goto out; } - /* we don't support sacls */ + /* we don't support sacls (yet) */ if (info_class == SACL_SECURITY_INFORMATION || info_class == LABEL_SECURITY_INFORMATION) { + DbgP("check_nfs41_setacl_args: SACLs not supported (yet)\n"); status = STATUS_NOT_SUPPORTED; goto out; } diff --git a/sys/nfs41sys_dir.c b/sys/nfs41sys_dir.c index 674720b..e80aa1e 100644 --- a/sys/nfs41sys_dir.c +++ b/sys/nfs41sys_dir.c @@ -216,8 +216,10 @@ NTSTATUS map_querydir_errors( NTSTATUS check_nfs41_dirquery_args( IN PRX_CONTEXT RxContext) { - if (RxContext->Info.Buffer == NULL) + if (RxContext->Info.Buffer == NULL) { + DbgP("check_nfs41_dirquery_args: RxContext->Info.Buffer == NULL\n"); return STATUS_INVALID_USER_BUFFER; + } return STATUS_SUCCESS; } diff --git a/sys/nfs41sys_fileinfo.c b/sys/nfs41sys_fileinfo.c index c86838c..aaa2018 100644 --- a/sys/nfs41sys_fileinfo.c +++ b/sys/nfs41sys_fileinfo.c @@ -610,6 +610,8 @@ NTSTATUS check_nfs41_setattr_args( goto out; } if (rinfo->RootDirectory) { + DbgP("check_nfs41_setattr_args: " + "rinfo->RootDirectory != NULL not supported\n"); status = STATUS_INVALID_PARAMETER; goto out; } @@ -629,6 +631,8 @@ NTSTATUS check_nfs41_setattr_args( goto out; } if (linfo->RootDirectory) { + DbgP("check_nfs41_setattr_args: " + "linfo->RootDirectory != NULL not supported\n"); status = STATUS_INVALID_PARAMETER; goto out; } diff --git a/sys/nfs41sys_fsctl.c b/sys/nfs41sys_fsctl.c index eb5ff06..864ad78 100644 --- a/sys/nfs41sys_fsctl.c +++ b/sys/nfs41sys_fsctl.c @@ -80,6 +80,8 @@ NTSTATUS check_nfs41_queryallocatedranges_args( (const PFILE_ALLOCATED_RANGE_BUFFER)FsCtl->pInputBuffer; if (FsCtl->pInputBuffer == NULL) { + DbgP("check_nfs41_queryallocatedranges_args: " + "FsCtl->pInputBuffer == NULL\n"); status = STATUS_INVALID_USER_BUFFER; goto out; } @@ -96,11 +98,15 @@ NTSTATUS check_nfs41_queryallocatedranges_args( (in_range_buffer->Length.QuadPart < 0LL) || (in_range_buffer->Length.QuadPart > (MAXLONGLONG - in_range_buffer->FileOffset.QuadPart))) { + DbgP("check_nfs41_queryallocatedranges_args: " + "in_range_buffer invalid data\n"); status = STATUS_INVALID_PARAMETER; goto out; } if (FsCtl->pOutputBuffer == NULL) { + DbgP("check_nfs41_queryallocatedranges_args: " + "FsCtl->pOutputBuffer == NULL\n"); status = STATUS_INVALID_USER_BUFFER; goto out; } @@ -461,6 +467,7 @@ NTSTATUS nfs41_SetZeroData( goto out; if (FsCtl->pInputBuffer == NULL) { + DbgP("nfs41_SetZeroData: FsCtl->pInputBuffer == NULL\n"); status = STATUS_INVALID_USER_BUFFER; goto out; } @@ -656,6 +663,8 @@ NTSTATUS nfs41_DuplicateData( goto out; if (FsCtl->pInputBuffer == NULL) { + DbgP("nfs41_DuplicateData: " + "FsCtl->pInputBuffer == NULL\n"); status = STATUS_INVALID_USER_BUFFER; goto out; } diff --git a/sys/nfs41sys_lock.c b/sys/nfs41sys_lock.c index 31ed0ec..7b52ad6 100644 --- a/sys/nfs41sys_lock.c +++ b/sys/nfs41sys_lock.c @@ -186,8 +186,10 @@ NTSTATUS nfs41_IsLockRealizable( FsRtlEnterFileSystem(); /* NFS lock operations with length=0 MUST fail with NFS4ERR_INVAL */ - if (Length->QuadPart == 0) + if (Length->QuadPart == 0) { + DbgP("nfs41_IsLockRealizable: Length->QuadPart == 0 not supported\n"); status = STATUS_NOT_SUPPORTED; + } FsRtlExitFileSystem(); #ifdef DEBUG_LOCK diff --git a/sys/nfs41sys_openclose.c b/sys/nfs41sys_openclose.c index 2d9ae41..ebb7490 100644 --- a/sys/nfs41sys_openclose.c +++ b/sys/nfs41sys_openclose.c @@ -520,6 +520,7 @@ NTSTATUS check_nfs41_create_args( } if (isStream(SrvOpen->pAlreadyPrefixedName)) { + DbgP("nfs41_Create: Streams not supported (yet)\n"); status = STATUS_NOT_SUPPORTED; goto out; } diff --git a/sys/nfs41sys_readwrite.c b/sys/nfs41sys_readwrite.c index a2c023a..f82549c 100644 --- a/sys/nfs41sys_readwrite.c +++ b/sys/nfs41sys_readwrite.c @@ -220,8 +220,11 @@ NTSTATUS map_readwrite_errors( static NTSTATUS check_nfs41_read_args( IN PRX_CONTEXT RxContext) { - if (!RxContext->LowIoContext.ParamsFor.ReadWrite.Buffer) + if (RxContext->LowIoContext.ParamsFor.ReadWrite.Buffer == NULL) { + DbgP("check_nfs41_read_args: " + "RxContext->LowIoContext.ParamsFor.ReadWrite.Buffer == NULL\n"); return STATUS_INVALID_USER_BUFFER; + } return STATUS_SUCCESS; } @@ -337,7 +340,9 @@ static NTSTATUS check_nfs41_write_args( __notnull PNFS41_V_NET_ROOT_EXTENSION pVNetRootContext = NFS41GetVNetRootExtension(RxContext->pRelevantSrvOpen->pVNetRoot); - if (!RxContext->LowIoContext.ParamsFor.ReadWrite.Buffer) { + if (RxContext->LowIoContext.ParamsFor.ReadWrite.Buffer == NULL) { + DbgP("check_nfs41_write_args: " + "RxContext->LowIoContext.ParamsFor.ReadWrite.Buffer == NULL\n"); status = STATUS_INVALID_USER_BUFFER; goto out; } -- 2.51.0 From 75859f4172ae8f5552a91818ac6f03191535b283 Mon Sep 17 00:00:00 2001 From: Roland Mainz <roland.mainz@nrubsig.org> Date: Thu, 30 Oct 2025 13:06:14 +0100 Subject: [PATCH 3/3] nfs41_build_features.h,sys: Allow pagefile.sys on NFSv4 filesystems Allow pagefile.sys on NFSv4 filesystems. Reported-by: Dan Shelton <dan.f.shelton@gmail.com> Signed-off-by: Cedric Blancher <cedric.blancher@gmail.com> --- nfs41_build_features.h | 6 ++++++ sys/nfs41sys_openclose.c | 8 ++++++-- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/nfs41_build_features.h b/nfs41_build_features.h index 274950b..94be0e2 100644 --- a/nfs41_build_features.h +++ b/nfs41_build_features.h @@ -261,4 +261,10 @@ */ #define NFS41_DRIVER_HACK_HANDLE_NFS_DELAY_GRACE_WIP 1 +/* + * |NFS41_DRIVER_HACK_ENABLE_PAGEFILE_SUPPORT| - allow pagefile.sys + * files on NFSv4 filesystems. + */ +#define NFS41_DRIVER_HACK_ENABLE_PAGEFILE_SUPPORT 1 + #endif /* !_NFS41_DRIVER_BUILDFEATURES_ */ diff --git a/sys/nfs41sys_openclose.c b/sys/nfs41sys_openclose.c index ebb7490..9196aad 100644 --- a/sys/nfs41sys_openclose.c +++ b/sys/nfs41sys_openclose.c @@ -507,10 +507,14 @@ NTSTATUS check_nfs41_create_args( goto out; } - if (FlagOn(Fcb->FcbState, FCB_STATE_PAGING_FILE )) { - print_error("FCB_STATE_PAGING_FILE not implemented\n"); + if (FlagOn(Fcb->FcbState, FCB_STATE_PAGING_FILE)) { +#ifdef NFS41_DRIVER_HACK_ENABLE_PAGEFILE_SUPPORT + DbgP("nfs41_Create: FCB_STATE_PAGING_FILE set\n"); +#else + print_error("nfs41_Create: FCB_STATE_PAGING_FILE not implemented\n"); status = STATUS_NOT_IMPLEMENTED; goto out; +#endif /* NFS41_DRIVER_HACK_ENABLE_PAGEFILE_SUPPORT */ } if (!pNetRootContext->mounts_init) { -- 2.51.0 From 22ca35c76a040b391b74b5d5d0cc2b2fca086977 Mon Sep 17 00:00:00 2001 From: Roland Mainz <roland.mainz@nrubsig.org> Date: Fri, 31 Oct 2025 14:38:54 +0100 Subject: [PATCH 1/2] tests: Add "Smb2" fields for winfsinfo fileremoteprotocolinfo Add "Smb2" fields for winfsinfo fileremoteprotocolinfo. Signed-off-by: Cedric Blancher <cedric.blancher@gmail.com> --- tests/winfsinfo1/winfsinfo.c | 36 ++++++++++++++++++++++++++++++++++-- 1 file changed, 34 insertions(+), 2 deletions(-) diff --git a/tests/winfsinfo1/winfsinfo.c b/tests/winfsinfo1/winfsinfo.c index ca658dd..a7a9d17 100644 --- a/tests/winfsinfo1/winfsinfo.c +++ b/tests/winfsinfo1/winfsinfo.c @@ -1162,7 +1162,7 @@ int get_file_remote_protocol_info(const char *progname, const char *filename) #if (_WIN32_WINNT < _WIN32_WINNT_WIN8) /* ProtocolSpecificReserved */ (void)printf("\tcompound ProtocolSpecificReserved=(\n"); - (void)printf("\t\ttypeset -a Reserved=(\n"); + (void)printf("\t\ttypeset -l -i -a Reserved=(\n"); for (i=0 ; i < 16 ; i++) { (void)printf("\t\t\t[%d]=0x%lx\n", i, @@ -1173,7 +1173,39 @@ int get_file_remote_protocol_info(const char *progname, const char *filename) #else /* ProtocolSpecific */ (void)printf("\tcompound ProtocolSpecific=(\n"); - (void)printf("\t\ttypeset -a Reserved=(\n"); + + if (frpi.Protocol == WNNC_NET_SMB) { + (void)printf("\t\tcompound Smb2=(\n"); + (void)printf("\t\t\tcompound Server=(\n"); + (void)printf("\t\t\t\tCapabilities=0x%lx\n", + (unsigned long)frpi.ProtocolSpecific.Smb2.Server.Capabilities); + (void)printf("\t\t\t)\n"); + (void)printf("\t\t\tcompound Share=(\n"); + (void)printf("\t\t\t\tCapabilities=0x%lx\n", + (unsigned long)frpi.ProtocolSpecific.Smb2.Share.Capabilities); + (void)printf("\t\t\t\tShareFlags=0x%lx\n", + (unsigned long)frpi.ProtocolSpecific.Smb2.Share.ShareFlags); +#if 0 /* MinGW header do not have these fields yet */ + (void)printf("\t\t\t\tCachingFlags=0x%lx\n", + (unsigned long)frpi.ProtocolSpecific.Smb2.Share.CachingFlags); + (void)printf("\t\t\t\tShareType=%d\n", + (int)frpi.ProtocolSpecific.Smb2.Share.ShareType); + + (void)printf("\t\t\t\ttypeset -l -i -a Reserved0=(\n"); + for (i=0 ; i < 4 ; i++) { + (void)printf("\t\t\t\t\t[%d]=0x%lx\n", + i, + (long)frpi.ProtocolSpecific.Smb2.Share.Reserved0[i]); + } + (void)printf("\t\t\t\t)\n"); + (void)printf("\t\t\t\tReserved1=0x%lx\n", + (unsigned long)frpi.ProtocolSpecific.Smb2.Share.Reserved1); +#endif + (void)printf("\t\t\t)\n"); + (void)printf("\t\t)\n"); + } + + (void)printf("\t\ttypeset -l -i -a Reserved=(\n"); for (i=0 ; i < 16 ; i++) { (void)printf("\t\t\t[%d]=0x%lx\n", i, -- 2.51.0 From dac3ed27aeba651c21a9da0702ff19b0aa7127ab Mon Sep 17 00:00:00 2001 From: Roland Mainz <roland.mainz@nrubsig.org> Date: Fri, 31 Oct 2025 14:40:30 +0100 Subject: [PATCH 2/2] tests: Fix 64bit kernel alignment issue when trying to query FileRemoteProtocolinfo for SMB filesystem Fix 64bit kernel alignment issue when trying to query FileRemoteProtocolinfo for SMB filesystem. Signed-off-by: Cedric Blancher <cedric.blancher@gmail.com> --- tests/winfsinfo1/winfsinfo.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tests/winfsinfo1/winfsinfo.c b/tests/winfsinfo1/winfsinfo.c index a7a9d17..a7dad62 100644 --- a/tests/winfsinfo1/winfsinfo.c +++ b/tests/winfsinfo1/winfsinfo.c @@ -1076,7 +1076,11 @@ int get_file_remote_protocol_info(const char *progname, const char *filename) { int res = EXIT_FAILURE; bool ok; - FILE_REMOTE_PROTOCOL_INFO frpi; +#ifdef _MSC_BUILD + __declspec(align(16)) FILE_REMOTE_PROTOCOL_INFO frpi; +#else + FILE_REMOTE_PROTOCOL_INFO frpi __attribute__((aligned(16))); +#endif int i; (void)memset(&frpi, 0, sizeof(frpi)); -- 2.51.0 From 483a7649d3ad4ce3872f68ba21af14200704b84d Mon Sep 17 00:00:00 2001 From: Roland Mainz <roland.mainz@nrubsig.org> Date: Mon, 3 Nov 2025 20:59:50 +0100 Subject: [PATCH 1/3] tests: Document filedisk-sparse fork of bobranten's filedisk-22 Document filedisk-sparse fork of bobranten's filedisk-22. Signed-off-by: Cedric Blancher <cedric.blancher@gmail.com> --- tests/manual_testing.txt | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) diff --git a/tests/manual_testing.txt b/tests/manual_testing.txt index 4a2d42d..57c9013 100644 --- a/tests/manual_testing.txt +++ b/tests/manual_testing.txt @@ -1,5 +1,5 @@ # -# ms-nfs41-client manual testing sequence, 2025-11-01 +# ms-nfs41-client manual testing sequence, 2025-11-03 # # Draft version, needs to be turned into automated tests # if possible @@ -1146,16 +1146,25 @@ mkdir testruns && cd testruns # FileDisk # (use plain files as disks, disk/CDROM images) # +# Original version is 'https://www.accum.se/~bosse/filedisk/filedisk-22.zip', +# we use our fork which supports punching sparse file holes and minor other +# tweaks +# + +# +# build +# +export PATH="/cygdrive/c/Program Files (x86)/Microsoft Visual Studio/2019/Community/MSBuild/Current/Bin/:$PATH" +git clone https://github.com/gisburn/filedisk-sparse.git +cd filedisk-sparse/ +MSBuild.exe filedisk.sln -t:Build -p:Configuration=Debug -p:Platform=x64 # # install # -wget 'https://www.accum.se/~bosse/filedisk/filedisk-22.zip' -unzip filedisk-22.zip -cd filedisk-22 -cp ./sys/Release/x64/filedisk.sys /cygdrive/c/Windows/System32/drivers/. -cp ./sys/Release/x64/filedisk.pdb /cygdrive/c/Windows/System32/drivers/. -cp ./exe/Release/x64/filedisk.exe /cygdrive/c/Windows/. +cp ./sys/Debug/x64/filedisk.sys /cygdrive/c/Windows/System32/drivers/. +cp ./sys/Debug/x64/filedisk.pdb /cygdrive/c/Windows/System32/drivers/. +cp ./exe/Debug/x64/filedisk.exe /cygdrive/c/Windows/. chmod a+rx /cygdrive/c/Windows/filedisk.exe sc create filedisk binPath='C:\Windows\System32\drivers\filedisk.sys' type=kernel @@ -1173,8 +1182,8 @@ filedisk /umount V: # Create NTFS filesystem and use it # rm -f /cygdrive/n/winntfs_filedisk_001.img -filedisk /mount 2 'N:\winntfs_filedisk_001.img' 8192G U: -format.com U: /FS:NTFS "/V:NTFSonNFS4_001" /Q /X +filedisk /mount 2 'N:\winntfs_filedisk_001.img' 1T U: +format.com U: /FS:NTFS /A:8192 "/V:NTFSonNFS4_001" /Q /X mkdir /cygdrive/u/test1 && cd /cygdrive/u/test1 rm -Rfv bash && time nice ksh93 /home/roland_mainz/work/msnfs41_uidmapping/ms-nfs41-client/tests/nfsbuildtest/nfsbuildtest.ksh93 bash build cd -- 2.51.0 From 47892e6cae791e87b486ed777f2d01bac9458886 Mon Sep 17 00:00:00 2001 From: Roland Mainz <roland.mainz@nrubsig.org> Date: Mon, 3 Nov 2025 21:26:00 +0100 Subject: [PATCH 2/3] README.md,docs: Document filedisk-sparse as alternative to VHD/VHDX disks Document filedisk-sparse as alternative to VHD/VHDX disks. Signed-off-by: Cedric Blancher <cedric.blancher@gmail.com> --- README.md | 10 ++++++++++ docs/README.xml | 9 +++++++++ 2 files changed, 19 insertions(+) diff --git a/README.md b/README.md index 8d34637..fd1ff44 100644 --- a/README.md +++ b/README.md @@ -776,6 +776,16 @@ Within WSL mount UNC path returned by `/sbin/nfs_mount` Dieser Fehler wurde von dem Server zurueckgegeben, auf dem sich die Datei befindet. Versuchen Sie, die Datei woanders zu speichern. +- [VHD/VHDX + disks](https://learn.microsoft.com/en-us/windows-server/storage/disk-management/manage-virtual-hard-disks) + currently (Win10, Win11) cannot use files on ms-nfs41-client/NFSv4 + filesystems as storage. It seems the Windows code makes explicit + checks for SMB filesystems, and rejects any non-SMB filesystems. + + As an alternative `filedisk-sparse` + (<https://github.com/gisburn/filedisk-sparse/>) can be used to mount + (sparse) files as disks or CDROM images. + # Troubleshooting && finding bugs/debugging - `nfsd_debug.exe` has the `-d` option to set a level for debug output. diff --git a/docs/README.xml b/docs/README.xml index a1dbd2c..56460d8 100644 --- a/docs/README.xml +++ b/docs/README.xml @@ -875,6 +875,15 @@ konnten gespeichert werden. Daten gingen verloren. Dieser Fehler wurde von dem Server zurueckgegeben, auf dem sich die Datei befindet. Versuchen Sie, die Datei woanders zu speichern.</programlisting> </listitem> + <listitem> + <para><link xl:href="https://learn.microsoft.com/en-us/windows-server/storage/disk-management/manage-virtual-hard-disks">VHD/VHDX disks</link> + currently (Win10, Win11) cannot use files on ms-nfs41-client/NFSv4 filesystems as storage. + It seems the Windows code makes explicit checks for SMB filesystems, + and rejects any non-SMB filesystems.</para> + <para>As an alternative <literal>filedisk-sparse</literal> + (<link xl:href="https://github.com/gisburn/filedisk-sparse/">https://github.com/gisburn/filedisk-sparse/</link>) + can be used to mount (sparse) files as disks or CDROM images.</para> + </listitem> </itemizedlist> </section> -- 2.51.0 From 31409aa71b356ea42d1eee7cb106bc96ad80e47a Mon Sep 17 00:00:00 2001 From: Roland Mainz <roland.mainz@nrubsig.org> Date: Mon, 3 Nov 2025 21:37:51 +0100 Subject: [PATCH 3/3] README.md,docs: Add note about per-machine software installations on filedisk-sparse Add note about per-machine software installations on NTFS<-->filedisk-sparse<-->NFSv4-Client<-->NFS-Server. Signed-off-by: Cedric Blancher <cedric.blancher@gmail.com> --- README.md | 6 ++++++ docs/README.xml | 3 +++ 2 files changed, 9 insertions(+) diff --git a/README.md b/README.md index fd1ff44..2364154 100644 --- a/README.md +++ b/README.md @@ -786,6 +786,12 @@ Within WSL mount UNC path returned by `/sbin/nfs_mount` (<https://github.com/gisburn/filedisk-sparse/>) can be used to mount (sparse) files as disks or CDROM images. + This can also be used to host per-machine software installations/data + storage (e.g. use + `filedisk /mount 35 'N:\winntfs_filedisk_003.img' S:` as global mount + which require NTFS or ReFS, but should be physically hosted on the NFS + server. + # Troubleshooting && finding bugs/debugging - `nfsd_debug.exe` has the `-d` option to set a level for debug output. diff --git a/docs/README.xml b/docs/README.xml index 56460d8..d605c85 100644 --- a/docs/README.xml +++ b/docs/README.xml @@ -883,6 +883,9 @@ Datei befindet. Versuchen Sie, die Datei woanders zu speichern.</programlisting> <para>As an alternative <literal>filedisk-sparse</literal> (<link xl:href="https://github.com/gisburn/filedisk-sparse/">https://github.com/gisburn/filedisk-sparse/</link>) can be used to mount (sparse) files as disks or CDROM images.</para> + <para>This can also be used to host per-machine software installations/data storage (e.g. use + <command>filedisk /mount 35 'N:\winntfs_filedisk_003.img' S:</command> as global mount + which require NTFS or ReFS, but should be physically hosted on the NFS server.</para> </listitem> </itemizedlist> </section> -- 2.51.0

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