vasilito
b9874d0941
Add redbear-usb-storage-check in-guest binary that validates USB mass storage read and write I/O: discovers /scheme/disk/ devices, writes a test pattern to sector 2048, reads it back, verifies match, restores original content. Updates test-usb-storage-qemu.sh with write-proof verification step. Includes all accumulated Red Bear OS work: kernel patches, relibc patches, driver infrastructure, DRM/GPU, KDE recipes, firmware, validation tooling, build system hardening, and documentation.
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
#include "../test_helpers.h"
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#include "common.h"
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#include <assert.h>
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#include <pthread.h>
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#include <errno.h>
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#include <time.h>
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// Adapted from test_rwlock_try_write in rustc/library/std/sync/rwlock/tests.rs
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int main(void) {
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int status;
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pthread_rwlock_t rwlock = PTHREAD_RWLOCK_INITIALIZER;
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pthread_rwlockattr_t attr;
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status = pthread_rwlockattr_init(&attr);
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ERROR_IF(pthread_rwlockattr_init, status, != 0);
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// Call setpshared twice to check both constants work.
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status = pthread_rwlockattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
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ERROR_IF(pthread_rwlockattr_setpshared, status, != 0);
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status = pthread_rwlockattr_setpshared(&attr, PTHREAD_PROCESS_PRIVATE);
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ERROR_IF(pthread_rwlockattr_setpshared, status, != 0);
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status = pthread_rwlock_init(&rwlock, &attr);
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ERROR_IF(pthread_rwlock_init, status, != 0);
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status = pthread_rwlockattr_destroy(&attr);
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ERROR_IF(pthread_rwlockattr_destroy, status, != 0);
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status = pthread_rwlock_rdlock(&rwlock);
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ERROR_IF(pthread_rwlock_rdlock, status, != 0);
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status = pthread_rwlock_trywrlock(&rwlock);
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UNEXP_IF(pthread_rwlock_trywrlock, status, != EBUSY);
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struct timespec ts;
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clock_gettime(CLOCK_REALTIME, &ts);
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ts.tv_nsec += 200 * 1000000;
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status = pthread_rwlock_timedwrlock(&rwlock, &ts);
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UNEXP_IF(pthread_rwlock_timedwrlock, status, != ETIMEDOUT);
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status = pthread_rwlock_unlock(&rwlock);
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ERROR_IF(pthread_rwlock_unlock, status, != 0);
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status = pthread_rwlock_trywrlock(&rwlock);
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ERROR_IF(pthread_rwlock_rdlock, status, != 0);
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clock_gettime(CLOCK_REALTIME, &ts);
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ts.tv_nsec += 200 * 1000000;
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status = pthread_rwlock_timedrdlock(&rwlock, &ts);
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UNEXP_IF(pthread_rwlock_timedrdlock, status, != ETIMEDOUT);
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status = pthread_rwlock_destroy(&rwlock);
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ERROR_IF(pthread_rwlock_destroy, status, != 0);
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return 0;
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}
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