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https://github.com/rbalsleyMSFT/FFU.git
synced 2026-06-14 02:09:35 -06:00
Improves PE driver copy reliability and logging
Fixes buffer truncation in Get-PrivateProfileSection by dynamically growing the buffer when large INF sections are encountered. Enhances Copy-Drivers with comprehensive error handling, file existence checks, and detailed logging for each operation. Adds support for architecture-specific SourceDisksFiles sections (amd64/arm64) and provides a summary of matched, skipped, and copied files. Fixes key-value parsing to handle values containing equals signs.
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rbalsleyMSFT
+161
-28
@@ -2759,17 +2759,43 @@ function Get-PrivateProfileSection {
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[Parameter()]
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[string]$SectionName
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)
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$buffer = [byte[]]::new(16384)
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[void][Win32.Kernel32]::GetPrivateProfileSection($SectionName, $buffer, $buffer.Length, $FileName)
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$keyValues = [System.Text.Encoding]::Unicode.GetString($buffer).TrimEnd("`0").Split("`0")
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# Read the requested section from an INF/INI file
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# Some INF sections can be large; grow the buffer to avoid truncated results
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$hashTable = @{}
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$bufferSize = 16384
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$buffer = $null
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$charsCopied = 0
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while ($true) {
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$buffer = [byte[]]::new($bufferSize)
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$charsCopied = [Win32.Kernel32]::GetPrivateProfileSection($SectionName, $buffer, $buffer.Length, $FileName)
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# No section found or no content
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if ($charsCopied -eq 0) {
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return $hashTable
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}
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# If the returned data is close to the buffer size, assume truncation and retry bigger
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if (($charsCopied -ge ($bufferSize - 2)) -and ($bufferSize -lt 1048576)) {
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$bufferSize = $bufferSize * 2
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continue
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}
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break
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}
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# Convert only the returned portion of the buffer (Unicode = 2 bytes per char)
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$sectionText = [System.Text.Encoding]::Unicode.GetString($buffer, 0, ($charsCopied * 2))
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$keyValues = $sectionText.TrimEnd("`0").Split("`0")
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foreach ($keyValue in $keyValues) {
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if (![string]::IsNullOrEmpty($keyValue)) {
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$parts = $keyValue -split "="
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$parts = $keyValue -split "=", 2
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if ($parts.Count -eq 2) {
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$hashTable[$parts[0]] = $parts[1]
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}
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}
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}
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return $hashTable
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}
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@@ -2792,7 +2818,32 @@ function Copy-Drivers {
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$filterGUIDs = @("{4D36E97D-E325-11CE-BFC1-08002BE10318}", "{4D36E97B-E325-11CE-BFC1-08002BE10318}", "{4d36e96b-e325-11ce-bfc1-08002be10318}", "{4d36e96f-e325-11ce-bfc1-08002be10318}", "{745a17a0-74d3-11d0-b6fe-00a0c90f57da}")
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$exclusionList = "wdmaudio.inf|Sound|Machine Learning|Camera|Firmware"
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$pathLength = $Path.Length
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# Log start and validate paths
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WriteLog "Copying PE drivers from '$Path' to '$Output' (WindowsArch: $WindowsArch)"
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if (-not (Test-Path -Path $Path)) {
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WriteLog "ERROR: Drivers source path not found: $Path"
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return
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}
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[void](New-Item -Path $Output -ItemType Directory -Force)
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# Determine common arch-specific SourceDisksFiles section names
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# Many INFs use 'amd64' rather than 'x64' for 64-bit paths (e.g. SourceDisksFiles.amd64)
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$sourceDisksFileSections = @("SourceDisksFiles")
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if ($WindowsArch -eq 'x64') {
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$sourceDisksFileSections += "SourceDisksFiles.amd64"
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}
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elseif ($WindowsArch -eq 'arm64') {
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$sourceDisksFileSections += "SourceDisksFiles.arm64"
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}
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$infFiles = Get-ChildItem -Path $Path -Recurse -Filter "*.inf"
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WriteLog "Found $($infFiles.Count) INF files under: $Path"
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$matchedInfCount = 0
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$skippedInfCount = 0
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$copiedFileCount = 0
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$errorCount = 0
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for ($i = 0; $i -lt $infFiles.Count; $i++) {
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$infFullName = $infFiles[$i].FullName
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@@ -2800,45 +2851,128 @@ function Copy-Drivers {
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$childPath = $infPath.Substring($pathLength)
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$targetPath = Join-Path -Path $Output -ChildPath $childPath
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if ((Get-PrivateProfileString -FileName $infFullName -SectionName "version" -KeyName "ClassGUID") -in $filterGUIDs) {
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# Filter to known device classes
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$classGuid = Get-PrivateProfileString -FileName $infFullName -SectionName "version" -KeyName "ClassGUID"
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if ($classGuid -notin $filterGUIDs) {
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$skippedInfCount++
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continue
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}
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# Avoid drivers that reference keywords from the exclusion list to keep the total size small
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if (((Get-Content -Path $infFullName) -match $exclusionList).Length -eq 0) {
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if (((Get-Content -Path $infFullName) -match $exclusionList).Length -ne 0) {
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WriteLog "Skipping PE driver INF due to exclusion match: $infFullName"
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$skippedInfCount++
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continue
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}
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$matchedInfCount++
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# Log the INF being processed
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$providerName = (Get-PrivateProfileString -FileName $infFullName -SectionName "Version" -KeyName "Provider").Trim("%")
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if ([string]::IsNullOrWhiteSpace($providerName)) {
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$providerName = "Unknown Provider"
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}
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WriteLog "Processing PE driver INF: $infFullName"
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WriteLog "Provider: $providerName | ClassGUID: $classGuid"
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WriteLog "Target folder: $targetPath"
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WriteLog "Copying PE drivers for $providerName"
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WriteLog "Driver inf is: $infFullName"
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[void](New-Item -Path $targetPath -ItemType Directory -Force)
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Copy-Item -Path $infFullName -Destination $targetPath -Force
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# Copy the INF itself
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try {
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Copy-Item -Path $infFullName -Destination $targetPath -Force -ErrorAction Stop
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$copiedFileCount++
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WriteLog "Copied: $infFullName -> $targetPath"
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}
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catch {
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$errorCount++
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WriteLog "ERROR: Failed to copy INF '$infFullName' to '$targetPath': $($_.Exception.Message)"
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}
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# Copy the catalog file (if specified)
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$CatalogFileName = Get-PrivateProfileString -FileName $infFullName -SectionName "version" -KeyName "Catalogfile"
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Copy-Item -Path "$infPath\$CatalogFileName" -Destination $targetPath -Force
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$sourceDiskFiles = Get-PrivateProfileSection -FileName $infFullName -SectionName "SourceDisksFiles"
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foreach ($sourceDiskFile in $sourceDiskFiles.Keys) {
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if (!$sourceDiskFiles[$sourceDiskFile].Contains(",")) {
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Copy-Item -Path "$infPath\$sourceDiskFile" -Destination $targetPath -Force
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if (-not [string]::IsNullOrWhiteSpace($CatalogFileName)) {
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$catalogSource = Join-Path -Path $infPath -ChildPath $CatalogFileName
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if (Test-Path -Path $catalogSource) {
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try {
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Copy-Item -Path $catalogSource -Destination $targetPath -Force -ErrorAction Stop
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$copiedFileCount++
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WriteLog "Copied: $catalogSource -> $targetPath"
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}
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catch {
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$errorCount++
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WriteLog "ERROR: Failed to copy catalog '$catalogSource' to '$targetPath': $($_.Exception.Message)"
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}
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}
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else {
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$subdir = ($sourceDiskFiles[$sourceDiskFile] -split ",")[1]
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[void](New-Item -Path "$targetPath\$subdir" -ItemType Directory -Force)
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Copy-Item -Path "$infPath\$subdir\$sourceDiskFile" -Destination "$targetPath\$subdir" -Force
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$errorCount++
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WriteLog "ERROR: Catalog file not found: $catalogSource (INF: $infFullName)"
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}
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}
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else {
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WriteLog "WARNING: No CatalogFile entry found in INF: $infFullName"
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}
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# Copy all files referenced by SourceDisksFiles sections
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foreach ($sectionName in $sourceDisksFileSections) {
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$sourceDiskFiles = Get-PrivateProfileSection -FileName $infFullName -SectionName $sectionName
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if ($sourceDiskFiles.Count -eq 0) {
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continue
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}
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WriteLog "Copying files from INF section [$sectionName] ($($sourceDiskFiles.Count) entries)"
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foreach ($sourceDiskFile in $sourceDiskFiles.Keys) {
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# Determine if the file lives in a subfolder relative to the INF path
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$rawValue = $sourceDiskFiles[$sourceDiskFile]
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$subdir = ""
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if (($null -ne $rawValue) -and ($rawValue.Contains(","))) {
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$splitParts = $rawValue -split ","
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if ($splitParts.Count -ge 2) {
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$subdir = $splitParts[1]
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}
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}
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#Arch specific files override the files specified in the universal section
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$sourceDiskFiles = Get-PrivateProfileSection -FileName $infFullName -SectionName "SourceDisksFiles.$WindowsArch"
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foreach ($sourceDiskFile in $sourceDiskFiles.Keys) {
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if (!$sourceDiskFiles[$sourceDiskFile].Contains(",")) {
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Copy-Item -Path "$infPath\$sourceDiskFile" -Destination $targetPath -Force
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if ([string]::IsNullOrWhiteSpace($subdir)) {
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$subdir = ""
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}
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# Build source and destination paths
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if ([string]::IsNullOrEmpty($subdir)) {
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$sourceFilePath = Join-Path -Path $infPath -ChildPath $sourceDiskFile
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$destinationFolder = $targetPath
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}
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else {
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$subdir = ($sourceDiskFiles[$sourceDiskFile] -split ",")[1]
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[void](New-Item -Path "$targetPath\$subdir" -ItemType Directory -Force)
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Copy-Item -Path "$infPath\$subdir\$sourceDiskFile" -Destination "$targetPath\$subdir" -Force
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}
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$sourceFolder = Join-Path -Path $infPath -ChildPath $subdir
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$sourceFilePath = Join-Path -Path $sourceFolder -ChildPath $sourceDiskFile
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$destinationFolder = Join-Path -Path $targetPath -ChildPath $subdir
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[void](New-Item -Path $destinationFolder -ItemType Directory -Force)
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}
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# Copy with logging and error handling
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if (Test-Path -Path $sourceFilePath) {
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try {
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Copy-Item -Path $sourceFilePath -Destination $destinationFolder -Force -ErrorAction Stop
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$copiedFileCount++
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WriteLog "Copied: $sourceFilePath -> $destinationFolder"
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}
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catch {
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$errorCount++
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WriteLog "ERROR: Failed to copy '$sourceFilePath' to '$destinationFolder' (INF: $infFullName): $($_.Exception.Message)"
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}
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}
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else {
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$errorCount++
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WriteLog "ERROR: Source file not found for [$sectionName] entry '$sourceDiskFile': $sourceFilePath (INF: $infFullName)"
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}
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}
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}
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}
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# Final summary
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WriteLog "PE driver copy summary: INF total=$($infFiles.Count) matched=$matchedInfCount skipped=$skippedInfCount filesCopied=$copiedFileCount errors=$errorCount"
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}
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function New-PEMedia {
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@@ -6243,7 +6377,6 @@ try {
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New-FFU $FFUVM.Name
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}
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else {
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Set-Progress -Percentage 81 -Message "Starting FFU capture from VHDX..."
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#Shorten Windows SKU for use in FFU file name to remove spaces and long names
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WriteLog "Shortening Windows SKU: $WindowsSKU for FFU file name"
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$shortenedWindowsSKU = Get-ShortenedWindowsSKU -WindowsSKU $WindowsSKU
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