utun2/tests/zero_debug.c

#include <tinycrypt/aes.h>
#include <tinycrypt/ccm_mode.h>
#include <tinycrypt/constants.h>
#include <string.h>
#include <stdio.h>

#define SC_NONCE_SIZE 8
#define SC_TAG_SIZE 8
#define SC_SESSION_KEY_SIZE 16

int main() {
    printf("=== Zero-initialized Debug Test ===\n");
    
    // Test AES key setup
    struct tc_aes_key_sched_struct sched;
    uint8_t test_key[SC_SESSION_KEY_SIZE] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 
                                              0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10};
    
    printf("Testing AES key setup...\n");
    int aes_result = tc_aes128_set_encrypt_key(&sched, test_key);
    printf("tc_aes128_set_encrypt_key returned: %d\n", aes_result);
    
    if (aes_result == TC_CRYPTO_SUCCESS) {
        printf("✓ AES key setup successful\n");
        
        // Test CCM config with zero-initialized structure
        struct tc_ccm_mode_struct ccm_state = {0};  // Zero initialize
        TCCcmMode_t c = &ccm_state;
        uint8_t nonce[SC_NONCE_SIZE] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88};
        
        printf("\nCCM State before config:\n");
        printf("  sched pointer: %p\n", (void*)ccm_state.sched);
        printf("  nonce pointer: %p\n", (void*)ccm_state.nonce);
        printf("  mlen: %u\n", ccm_state.mlen);
        
        printf("\nTesting CCM config...\n");
        printf("Nonce size: %d, Tag size: %d\n", SC_NONCE_SIZE, SC_TAG_SIZE);
        printf("Using TCCcmMode_t pointer: %p\n", (void*)c);
        
        int ccm_result = tc_ccm_config(c, &sched, nonce, SC_NONCE_SIZE, SC_TAG_SIZE);
        printf("tc_ccm_config returned: %d\n", ccm_result);
        
        printf("\nCCM State after config:\n");
        printf("  sched pointer: %p\n", (void*)ccm_state.sched);
        printf("  nonce pointer: %p\n", (void*)ccm_state.nonce);
        printf("  mlen: %u\n", ccm_state.mlen);
        
        if (ccm_result == TC_CRYPTO_SUCCESS) {
            printf("✓ CCM config successful\n");
        } else {
            printf("❌ CCM config failed!\n");
            printf("This suggests there might be an issue with:\n");
            printf("  1. Parameter validation\n");
            printf("  2. Missing dependencies\n");
            printf("  3. Structure alignment issues\n");
            printf("  4. Missing initialization routines\n");
        }
    } else {
        printf("❌ AES key setup failed\n");
    }
    
    return 0;
}