2044490 - Set up WASM runtime host for built-in DLP engine module

Status: RESOLVED FIXED

(Enterprise Products :: Firefox, enhancement, P1)

Description

[jmendez]

Set up a host to download the DLP WASM module, stand up its runtime, and hook up the exports/imports needed to communicate with it.

Comment 1

[Greg Stoll :gstoll]

Attachment: Bug 2044490 part 1 - Expose ExternalAgentBackend protobuf converters as static helpers r=#dlp-reviewers!,jmendez!

These will be used in the WasmModuleBackend.

Comment 2

[Greg Stoll :gstoll]

Attachment: Bug 2044490 part 1 - Add DLP rule model and JSON parser r=#dlp-reviewers!,jmendez!

Add nsIContentAnalysisRule, the representation of a single DLP rule
consumed by the (upcoming) in-process WebAssembly module, along with ParseDlpRules to parse the DLP rules JSON config into a list
of these rules.

The code to supply the JSON rules has not been written yet; presumably
this will come from a policy in the future or something like that.

Comment 3

[Greg Stoll :gstoll]

Attachment: Bug 2044490 part 2 - Add in-process WASM DLP runner service r=#dlp-reviewers!,jmendez!

Add ContentAnalysisWasmRunner, a JS service that reads an extension
with a WebAssembly DLP module, and compiles and runs it in a content
process (via the new ContentAnalysisWasm actor pair).

Comment 4

[Greg Stoll :gstoll]

Attachment: Bug 2044490 part 3 - Wire the in-process WASM backend into content analysis r=#dlp-reviewers!,jmendez!

Add WasmModuleBackend, a ContentAnalysisBackend implementation that
serializes requests to the content_analysis SDK protobuf, and hands them
to the in-process WASM DLP module via nsIContentAnalysisWasmRunner.

Gated behind a pref that is off (and will eventually be set by policy)

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/fa3b0a9ec3b5
https://hg.mozilla.org/integration/autoland/rev/0da020bb2c5c
part 1 - Add DLP rule model and JSON parser r=jmendez,dlp-reviewers,handyman
https://github.com/mozilla-firefox/firefox/commit/11d28d4b2464
https://hg.mozilla.org/integration/autoland/rev/c6e40a41bab9
part 2 - Add in-process WASM DLP runner service r=jmendez,dlp-reviewers,mkaply,handyman
https://github.com/mozilla-firefox/firefox/commit/cae692fed281
https://hg.mozilla.org/integration/autoland/rev/0db9c35953f0
part 3 - Wire the in-process WASM backend into content analysis r=jmendez,dlp-reviewers,mkaply,handyman

Comment 6

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/0da020bb2c5c
https://hg.mozilla.org/mozilla-central/rev/c6e40a41bab9
https://hg.mozilla.org/mozilla-central/rev/0db9c35953f0