Evgeny
2c58c008ce
- Deleted 11 obsolete debug/isolation test files - Restored test_pkt_normalizer.c from git repository - Added test_ecc_encrypt and test_routing to Makefile (2 new functional tests) - Removed settings.o from PN_OBJS (settings.c deleted) - Added crc32.o to SC_LIB_OBJS and ETCP_OBJS to fix linker errors - Removed unused routing_get_stats() function (undefined routing_stats_t type) - Updated changelog with detailed cleanup summary Current test count: 16 tests in Makefile (14 original + 2 new)Active test files in tests/: 25 files (was 35)test_ecc_encrypt: PASStest_routing: Compilation OK
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
// crc32.c - CRC32 checksum implementation
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#include "crc32.h"
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#include <string.h>
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static uint32_t crc32_table[256];
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static int crc32_table_initialized = 0;
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static void init_crc32_table(void) {
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if (crc32_table_initialized) return;
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for (uint32_t i = 0; i < 256; i++) {
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uint32_t crc = i;
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for (int j = 0; j < 8; j++) {
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if (crc & 1) {
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crc = (crc >> 1) ^ 0xEDB88320;
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} else {
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crc >>= 1;
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}
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}
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crc32_table[i] = crc;
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}
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crc32_table_initialized = 1;
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}
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void crc32_init(void) {
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init_crc32_table();
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}
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uint32_t crc32_calc(const uint8_t *data, size_t len) {
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if (!crc32_table_initialized) {
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init_crc32_table();
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}
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if (!data || len == 0) return 0xFFFFFFFF;
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uint32_t crc = 0xFFFFFFFF;
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for (size_t i = 0; i < len; i++) {
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uint8_t byte = data[i];
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uint32_t table_index = (crc ^ byte) & 0xFF;
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crc = (crc >> 8) ^ crc32_table[table_index];
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}
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return ~crc;
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}
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uint32_t crc32_calc_ex(const uint8_t *data, size_t len, uint32_t initial_crc) {
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if (!crc32_table_initialized) {
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init_crc32_table();
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}
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if (!data || len == 0) return initial_crc;
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uint32_t crc = initial_crc;
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for (size_t i = 0; i < len; i++) {
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uint8_t byte = data[i];
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uint32_t table_index = (crc ^ byte) & 0xFF;
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crc = (crc >> 8) ^ crc32_table[table_index];
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}
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return crc;
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}
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uint32_t crc32_update(uint32_t crc, const uint8_t *data, size_t len) {
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return crc32_calc_ex(data, len, crc);
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} |