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Fix automatically denied events with small deadlines #1284
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russellhancox
previously approved these changes
Feb 8, 2024
russellhancox
approved these changes
Feb 8, 2024
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macOS 14.4 betas introduce much smaller ES deadline values for AUTH messages. Additionally, it adds several "critical" binaries with extremely small deadline values which also perform operations Santa attempts to authorize that weren't previously typical before macOS 14.4.
Santa attempts to respond to AUTH events before deadlines even if a result wasn't complete to prevent being killed by the system. However the basic mechanism Santa used had its assumptions broken in the latest betas. This results in events from binaries treated as "critical" by ES being immediately denied by Santa.
This patch changes how event processing budgets are computed to be more flexible with events with extremely low timeouts. This should unblock Santa deployment on macOS 14.4.