static void test_precomp(void) {
long long i, j;
pseudorandombytes(space, sizeof space);
checksum_zero();
for (i = 0; i < 1080; ++i) {
for (j = 31; j >= 0; --j) sk[j ] = skdata[i][j];
for (j = 31; j >= 0; --j) sk[j + 32] = skdata[i][j];
for (j = 63; j >= 0; --j) pk[j ] = pkdata[i][j];
if (iszero(sk)) continue;
crypto_sign_nistp256ecdsa(sm, &smlen, space, MLEN - i, sk);
checksum(sm, crypto_sign_nistp256ecdsa_BYTES);
if (crypto_sign_nistp256ecdsa_open(m, &mlen, sm, smlen, pk) != 0) {
fail_printdata("sm", sm, smlen);
fail_printdata("pk", pk, crypto_sign_nistp256ecdsa_PUBLICKEYBYTES);
fail_printdata("sk", sk, crypto_sign_nistp256ecdsa_SECRETKEYBYTES);
fail("crypto_sign_nistp256ecdsa_open() failure, please report it !!!!!!!!!");
}
}
if (!checksum_check((test_precomp_checksumsha2)) && !checksum_check((test_precomp_checksumsha3))) {
fail_whenbadchecksum(test_precomp_checksumsha3);
}
}
int recognize_packet(uint8_t * buff){
struct nhrp_fixed_h *fixed = (struct nhrp_fixed_h *)buff;
uint8_t type;
if(!checksum_check(buff)){
printf("mpcd: p_recogn.c: checksum error!\n");
return -1;
}
if (fixed->ar_extoff > (fixed->ar_pktsz - sizeof(struct nhrp_extension))) {
printf("mpcd: p_recogn.c: extension offset beyond packet limits!\n");
return -1;
}
type = fixed->ar_op_type;
dprintf("mpcd: p_recogn.c: ");
switch(type){
case NHRP_PURGE_REQUEST :
dprintf("purge request received.\n");
return nhrp_purge_request(buff);
case MPOA_CACHE_IMPOSITION_REQUEST :
dprintf("cache imposition request recieved.\n");
return mpoa_cache_imposition_request(buff);
case MPOA_EGRESS_CACHE_PURGE_REPLY :
dprintf("mpoa egress cache purge reply recieved.\n");
return mpoa_egress_cache_purge_reply(buff);
case MPOA_KEEP_ALIVE :
dprintf("keep alive recieved. \n");
return mpoa_keep_alive(buff);
case MPOA_TRIGGER :
printf("mpoa trigger recieved. \n");
return mpoa_trigger(buff);
case MPOA_RESOLUTION_REPLY:
dprintf("mpoa resolution reply recieved. \n");
return mpoa_resolution_reply(buff);
default:
printf("p_recogn.c: unrecognized packet: %d\n",type);
return -1;
}
}
