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.
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/statvfs.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <stdio.h>
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int main(void) {
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char temp[] = "/tmp/stattest-XXXXXX";
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const char separator[] = "/";
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const char file[] = "mknod"; // relative
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int len = sizeof(temp) + sizeof(file) + sizeof(separator);
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char* path = malloc(len * sizeof(char));
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path[0] = '\0';
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if (path == NULL) {
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fprintf(stderr, "Could not allocate: %s\n", strerror(errno));
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exit(1);
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}
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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if(!mktemp(temp)) {
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fprintf(stderr, "Unable to create a unique dir name %s: %s\n", temp, strerror(errno));
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exit(1);
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}
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#pragma GCC diagnostic pop
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if (mkdir(temp, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH) != 0) {
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fprintf(stderr, "mkdir %s: %s\n", temp, strerror(errno));
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exit(1);
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}
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int dir_fd = open(temp, O_RDONLY);
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if(dir_fd == -1) {
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fprintf(stderr, "unable to open temp directory: %s with error: %s\n", temp, strerror(errno));
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exit(1);
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}
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if (mknodat(dir_fd, file, S_IFREG, S_IRUSR) == -1) {
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fprintf(stderr, "mknod %s: %s\n", path, strerror(errno));
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exit(1);
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}
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path = strncat(path, temp, strlen(temp));
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path = strncat(path, separator, strlen(temp));
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path = strncat(path, file, strlen(file));
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struct stat sb;
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if (stat(path, &sb) != 0) {
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fprintf(stderr, "stat for %s: %s\n", path, strerror(errno));
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exit(1);
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}
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if (!(sb.st_mode & S_IFREG)) {
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fprintf(stderr, "Expected S_IFREG flag to be set, got mode: %d\n", sb.st_mode);
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exit(1);
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}
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}
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