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phantomptrandClaude Opus 5.5
c14782944d
Upload, install, convert and manage PS5 game packages over the network. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
37 lines
1.7 KiB
C
37 lines
1.7 KiB
C
#ifndef HW_GUARD_H
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#define HW_GUARD_H
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/*
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* hw_guard — fault containment for Sony hardware getters.
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*
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* The Hardware tab is the only screen that calls Sony hw getters
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* (sceKernelGetHwModelName / ...SerialNumber / sensor reads) via
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* dlsym(RTLD_DEFAULT). Those symbols resolve against whatever libraries are
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* loaded IN THE HOST PROCESS the payload was injected into — which differs
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* by ELF loader / autoloader. A getter that resolves-and-works under one
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* loader can FAULT (SIGSEGV/SIGBUS) under another, and a fault in any thread
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* kills the whole payload → the mgmt listener closes → the desktop sees
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* "connection refused" the instant the user opens Hardware (field report:
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* FW 9.60 via an autoloader+elfldr, deterministic; not reproducible via our
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* own :9021 loader).
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*
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* The guard arms a per-thread setjmp point around each risky call. The
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* process fatal-signal handler (main.c) calls hw_guard_try_recover() FIRST;
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* if the faulting thread was inside a guarded call it logs a breadcrumb and
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* siglongjmp's back so the field reports "unavailable" instead of dropping
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* the helper. Outside a guarded call it returns 0 and normal fatal cleanup
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* runs (unchanged behaviour for every other crash).
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*/
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/*
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* Called FIRST from the process fatal-signal handler with the delivered
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* signal. If the current thread is inside a guarded hw call AND `sig` is a
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* memory-fault signal (SIGSEGV/SIGBUS/SIGILL), this writes an
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* async-signal-safe breadcrumb naming the faulting getter and siglongjmp's
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* back to the guard — it does NOT return in that case. Otherwise it returns
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* 0 so the caller proceeds with its normal fatal-signal handling.
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*/
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int hw_guard_try_recover(int sig);
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#endif /* HW_GUARD_H */
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