Daniel Samson
0fbd2c8f12
The registry consults the open rows it has been parsing since P2, so reaching a contract now takes a grant as well as a binding. A caller without one is answered exactly as it would be for a name nobody ever bound: same status, same empty reply, same absent capability, byte for byte, and no log line on either path — klog_read is ungated, so a line on one and not the other would be the oracle the design set out to remove. Refusal and absence being one answer is what lets a supervisor later narrow, fake or park a child's namespace without the child learning what it was denied. The manifest gains a third permission for a shape the plan did not foresee: attestation is one hop, but the driver tree is three deep — the PS/2 keyboard and mouse are spawned by ps2-bus, which the device manager spawned — so no row could name them and PS/2 input would simply stop. A supervise grant lets a delegate vouch for what its children *reach*, never for what they claim; the bind path is untouched, and the laundering deputy is still refused. The review found the receive side of a rule this track had already written down. Every process holds a sendable handle to the registrar — resolve installs one for anyone who asks — and ipc_reply_wait never asked who owned the endpoint, so a stranger could dequeue there: take the provider endpoints riding bind requests, and answer other clients' opens in the registrar's name. Receiving is the owner's privilege, like binding a signal or a timer; sending remains anyone's. Suite 109/109.
16 lines
657 B
Zig
16 lines
657 B
Zig
//! The protocol-denied-test fixture as a binary package (docs/build-packages-plan.md):
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//! this file names the binary and EXACTLY the modules its source imports —
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//! build-support resolves each name from the domains this zon declares.
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const std = @import("std");
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const build_support = @import("build-support");
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pub fn build(b: *std.Build) void {
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const exe = build_support.userBinary(b, .{
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.name = "protocol-denied-test",
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.root_source_file = b.path("protocol-denied-test.zig"),
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.imports = &.{ "channel", "envelope", "file-system", "ipc", "logging", "process", "time", "vfs-protocol" },
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});
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b.installArtifact(exe);
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}
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