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.
97 lines
1.6 KiB
C
97 lines
1.6 KiB
C
#include <assert.h>
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#include <signal.h>
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#include <sys/wait.h>
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#include "signals_list.h"
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#include "../test_helpers.h"
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/*
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* Test signal catching when being signalled from parent.
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* Skip SIGKILL and SIGSTOP as these are not catchable.
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*/
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volatile sig_atomic_t sig_handled = 0;
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void sig_handler(int signo)
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{
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(void) signo;
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sig_handled = 1;
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}
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void child_proc(int signum)
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{
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sigset_t sig_set;
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int status;
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sig_handled = 0;
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status = sigemptyset(&sig_set);
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ERROR_IF(sigemptyset, status, == -1);
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status = sigaddset(&sig_set, signum);
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ERROR_IF(sigaddset, status, == -1);
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struct sigaction act;
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act.sa_handler = sig_handler;
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act.sa_flags = 0;
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sigemptyset(&act.sa_mask);
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sigaction(signum, &act, NULL);
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status = usleep(200000);
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ERROR_IF(usleep, status, == 0);
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assert(sig_handled != 0);
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exit(EXIT_SUCCESS);
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}
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void parent(int signum, pid_t pid)
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{
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int status;
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usleep(100000);
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status = kill(pid, signum);
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ERROR_IF(kill, status, != 0);
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pid = wait(&status);
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ERROR_IF(wait, pid, == (pid_t)-1);
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if (!WIFEXITED(status) || WEXITSTATUS(status) != EXIT_SUCCESS)
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{
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printf("Child did not exit normally.\n");
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exit(EXIT_FAILURE);
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}
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else
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{
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return;
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}
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}
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void kill_child(int signum)
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{
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int pid;
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if ((pid = fork()) == 0)
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{
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child_proc(signum);
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}
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else
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{
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parent(signum, pid);
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}
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}
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int main()
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{
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for (long unsigned int i = 1; i < sizeof(signals_list)/sizeof(signals_list[0]); i++)
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{
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int sig = signals_list[i].signal;
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if (sig == SIGKILL || sig == SIGSTOP)
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{
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continue;
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}
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printf("Testing for signal %s (%d)\n", strsignal(sig), sig);
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kill_child(sig);
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}
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return EXIT_SUCCESS;
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}
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