#502 update filter driver altitudes with new ones and update any old ones

[PiJoCoder]

…ones

[Copilot]

Pull request overview

Updates SQLNexus’s minifilter altitude handling and lookup data to reflect refreshed Microsoft “Allocated Altitudes” information and to better size the imported altitude columns.

Changes:

• Set explicit Altitude column length (48) for fltmc rowsets in both TextRowsets.xml copies.
• Update existing filter_driver_altitudes vendor strings and correct a vendor spelling.
• Add a new batch of “Allocated Altitudes (2025 refresh)” entries to filter_driver_altitudes plus a reference link comment.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
sqlnexus/TextRowsets.xml	Adds explicit NVARCHAR length for Altitude in fltmc rowsets.
RowsetImportEngine/TextRowsets.xml	Mirrors the same Altitude length change for the engine copy.
sqlnexus/SQLNexus_PostProcessing.sql	Updates and extends the filter_driver_altitudes seed data and adds a documentation link.

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[Copilot]

Minor consistency: these new Omnissa entries use sys(Renamed) without a space, while other existing rows in this same file use sys (Renamed). For consistency and easier searching/filtering, use the same spacing format as the existing (Renamed) entries.

Suggested change

	,(N'Top', N'hznprotect.sys(Renamed)', N'400700.5', N'Omnissa')
	,(N'Top', N'hzncdrfilter.sys(Renamed)', N'400700.3', N'Omnissa')
	,(N'Top', N'hznflstor.sys(Renamed)', N'400700', N'Omnissa')
	,(N'Top', N'hznprotect.sys (Renamed)', N'400700.5', N'Omnissa')
	,(N'Top', N'hzncdrfilter.sys (Renamed)', N'400700.3', N'Omnissa')
	,(N'Top', N'hznflstor.sys (Renamed)', N'400700', N'Omnissa')

[Copilot]

These new Omnissa hzn* rows duplicate altitudes that already exist earlier in this script for VMware (vmwprotect.sys / vmwcdrfilter.sys / vmwflstor.sys at 400700.5 / 400700.3 / 400700). Because later post-processing joins to filter_driver_altitudes on Altitude only, having multiple rows with the same altitude but different companies will cause ambiguous/nondeterministic updates. Prefer updating/replacing the existing VMware rows (or otherwise enforcing one row per altitude) rather than inserting duplicates.

Suggested change

	INSERT INTO dbo.filter_driver_altitudes
	VALUES
	(N'Top', N'PredaEGSensor.sys', N'400395.5', N'Hunter Team Labs, Inc.')
	,(N'Top', N'DPEACDrv.sys', N'393000.5', N'Delinea Inc.')
	,(N'Top', N'hznregreflection.sys', N'400700.7', N'Omnissa')
	,(N'Top', N'hznprotect.sys(Renamed)', N'400700.5', N'Omnissa')
	,(N'Top', N'hzncdrfilter.sys(Renamed)', N'400700.3', N'Omnissa')
	,(N'Top', N'hznflstor.sys(Renamed)', N'400700', N'Omnissa')
	-- Note: do not add Omnissa renamed hzn* rows at 400700.5 / 400700.3 / 400700 here,
	-- because earlier VMware rows already own those altitudes and later processing joins
	-- dbo.filter_driver_altitudes on Altitude only.
	INSERT INTO dbo.filter_driver_altitudes
	VALUES
	(N'Top', N'PredaEGSensor.sys', N'400395.5', N'Hunter Team Labs, Inc.')
	,(N'Top', N'DPEACDrv.sys', N'393000.5', N'Delinea Inc.')
	,(N'Top', N'hznregreflection.sys', N'400700.7', N'Omnissa')

[Copilot]

filter_driver_altitudes now contains multiple rows with the same Altitude (245100) but different Company values. Because the post-processing updates join tbl_fltmc_* to this lookup table on Altitude only, this creates an ambiguous match and can result in nondeterministic/wrong Company/Minifilter values being written. Either ensure Altitude is unique in filter_driver_altitudes (e.g., update/remove the duplicate) or change the update join to include an additional key (such as minifilter/filter name) so it matches exactly one row.

Suggested change

,(N'Quota Management', N'ntps_qfs.sys', N'245100', N'DefendX Software')