7efe8bbfbf
Security Fixes: - CVE-2024-45339: Add O_EXCL flag to temp file creation in storage_write_entries() Prevents symlink attacks on predictable .tmp file paths - CVE-2025-47290: Use openat_nofollow() in storage_open() Closes TOCTOU race condition via path_sanitizer infrastructure - CVE-2025-0838: Add MAX_BATCH_SIZE=10000 to add_tasks() Prevents integer overflow in batch operations Research Trustworthiness (dataset_hash): - Deterministic file ordering: std::sort after collect_files() - Recursive directory traversal: depth-limited with cycle detection - Documented exclusions: hidden files and special files noted in API Bug Fixes: - R1: storage_init path validation for non-existent directories - R2: safe_strncpy return value check before strcat - R3: parallel_hash 256-file cap replaced with std::vector - R4: wire qi_compact_index/qi_rebuild_index stubs - R5: CompletionLatch race condition fix (hold mutex during decrement) - R6: ARMv8 SHA256 transform fix (save abcd_pre before vsha256hq_u32) - R7: fuzz_index_storage header format fix - R8: enforce null termination in add_tasks/update_tasks - R9: use 64 bytes (not 65) in combined hash to exclude null terminator - R10: status field persistence in save() New Tests: - test_recursive_dataset.cpp: Verify deterministic recursive hashing - test_storage_symlink_resistance.cpp: Verify CVE-2024-45339 fix - test_queue_index_batch_limit.cpp: Verify CVE-2025-0838 fix - test_sha256_arm_kat.cpp: ARMv8 known-answer tests - test_storage_init_new_dir.cpp: F1 verification - test_parallel_hash_large_dir.cpp: F3 verification - test_queue_index_compact.cpp: F4 verification All 8 native tests passing. Library ready for research lab deployment.
94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
// test_parallel_hash_large_dir.cpp - Verify parallel_hash handles >256 files
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// Validates F3 fix: no truncation, correct combined hash for large directories
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "../dataset_hash/threading/parallel_hash.h"
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// Create a test file with known content
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static bool create_test_file(const char* path, int content_id) {
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int fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
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if (fd < 0) return false;
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// Write unique content based on content_id
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char buf[64];
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snprintf(buf, sizeof(buf), "Test file content %d\n", content_id);
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write(fd, buf, strlen(buf));
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close(fd);
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return true;
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}
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int main() {
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// Create a temporary directory
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char tmpdir[] = "/tmp/test_large_dir_XXXXXX";
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if (!mkdtemp(tmpdir)) {
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printf("FAIL: Could not create temp directory\n");
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return 1;
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}
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// Create 300 test files (more than old 256 limit)
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const int num_files = 300;
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for (int i = 0; i < num_files; i++) {
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char path[256];
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snprintf(path, sizeof(path), "%s/file_%04d.txt", tmpdir, i);
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if (!create_test_file(path, i)) {
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printf("FAIL: Could not create test file %d\n", i);
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return 1;
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}
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}
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printf("Created %d test files in %s\n", num_files, tmpdir);
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// Initialize parallel hasher
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ParallelHasher hasher;
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if (!parallel_hasher_init(&hasher, 4, 64*1024)) {
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printf("FAIL: Could not initialize parallel hasher\n");
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return 1;
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}
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// Hash the directory
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char combined_hash[65];
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int result = parallel_hash_directory(&hasher, tmpdir, combined_hash);
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if (result != 0) {
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printf("FAIL: parallel_hash_directory returned %d\n", result);
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parallel_hasher_cleanup(&hasher);
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return 1;
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}
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printf("Combined hash: %s\n", combined_hash);
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// Verify hash is valid (64 hex chars)
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if (strlen(combined_hash) != 64) {
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printf("FAIL: Hash length is %zu, expected 64\n", strlen(combined_hash));
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parallel_hasher_cleanup(&hasher);
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return 1;
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}
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for (int i = 0; i < 64; i++) {
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char c = combined_hash[i];
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if (!((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f'))) {
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printf("FAIL: Invalid hex char '%c' at position %d\n", c, i);
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parallel_hasher_cleanup(&hasher);
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return 1;
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}
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}
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// Cleanup
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parallel_hasher_cleanup(&hasher);
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// Remove test files
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for (int i = 0; i < num_files; i++) {
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char path[256];
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snprintf(path, sizeof(path), "%s/file_%04d.txt", tmpdir, i);
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unlink(path);
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}
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rmdir(tmpdir);
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printf("PASS: parallel_hash handles %d files without truncation (F3 fix verified)\n", num_files);
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return 0;
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}
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