void dyn_parse_rsp(struct msg *r)
{
if (log_loggable(LOG_VVERB)) {
log_debug(LOG_VVERB, ":::::::::::::::::::::: In dyn_parse_rsp, start to process response :::::::::::::::::::::::: ");
msg_dump(r);
}
if (dyn_parse_core(r)) {
struct dmsg *dmsg = r->dmsg;
struct mbuf *b = STAILQ_LAST(&r->mhdr, mbuf, next);
if (dmsg->type != DMSG_UNKNOWN && dmsg->type != DMSG_RES) {
log_debug(LOG_DEBUG, "Resp parser: I got a dnode msg of type %d", dmsg->type);
r->state = 0;
r->result = MSG_PARSE_OK;
r->dyn_state = DYN_DONE;
return;
}
//check whether we need to decrypt the payload
if (dmsg->bit_field == 1) {
//dmsg->owner->owner->dnode_secured = 1;
struct mbuf *decrypted_buf = mbuf_get();
if (decrypted_buf == NULL) {
log_debug(LOG_INFO, "Unable to obtain an mbuf for dnode msg's header!");
r->result = MSG_OOM_ERROR;
return;
}
//Dont need to decrypt AES key - pull it out from the conn
dyn_aes_decrypt(dmsg->payload, dmsg->plen, decrypted_buf, r->owner->aes_key);
b->pos = b->pos + dmsg->plen;
r->pos = decrypted_buf->start;
mbuf_copy(decrypted_buf, b->pos, mbuf_length(b));
mbuf_insert(&r->mhdr, decrypted_buf);
mbuf_remove(&r->mhdr, b);
mbuf_put(b);
r->mlen = mbuf_length(decrypted_buf);
}
if (r->redis) {
return redis_parse_rsp(r);
}
return memcache_parse_rsp(r);
}
//bad case
if (log_loggable(LOG_DEBUG)) {
log_debug(LOG_DEBUG, "Resp: bad message - cannot parse"); //fix me to do something
msg_dump(r);
}
r->result = MSG_PARSE_AGAIN;
}
void
data_store_parse_rsp(struct msg *r)
{
if (r->data_store == DATA_REDIS) {
return redis_parse_rsp(r);
}
else if (r->data_store == DATA_MEMCACHE){
return memcache_parse_rsp(r);
}
else{
//if (log_loggable(LOG_VVERB)) {
// log_hexdump(LOG_VVERB,"incorrect selection of data store %d (parse request)", data_store);
//}
exit(0);
}
}
void dyn_parse_rsp(struct msg *r)
{
#ifdef DN_DEBUG_LOG
log_debug(LOG_VERB, "In dyn_parse_rsp, start to process response :::::::::::::::::::::::: ");
msg_dump(r);
#endif
if (dyn_parse_core(r)) {
struct dmsg *dmsg = r->dmsg;
if (dmsg->type != DMSG_UNKNOWN && dmsg->type != DMSG_RES) {
log_debug(LOG_DEBUG, "Resp parser: I got a dnode msg of type %d", dmsg->type);
r->state = 0;
r->result = MSG_PARSE_OK;
r->dyn_state = DYN_DONE;
return;
}
//check whether we need to decrypt the payload
if (dmsg->bit_field == 1) {
//dmsg->owner->owner->dnode_secured = 1;
struct mbuf *decrypted_buf = mbuf_get();
if (decrypted_buf == NULL) {
log_debug(LOG_INFO, "Unable to obtain an mbuf for dnode msg's header!");
return;
}
#ifdef DN_DEBUG_LOG
log_debug(LOG_VERB, "encrypted aes key length : %d", dmsg->mlen);
loga("AES encryption key from conn: %s\n", base64_encode(r->owner->aes_key, AES_KEYLEN));
#endif
//Dont need to decrypt AES key - pull it out from the conn
dyn_aes_decrypt(dmsg->payload, dmsg->plen, decrypted_buf, r->owner->aes_key);
#ifdef DN_DEBUG_LOG
log_hexdump(LOG_VERB, decrypted_buf->pos, mbuf_length(decrypted_buf), "dyn message decrypted payload: ");
#endif
struct mbuf *b = STAILQ_LAST(&r->mhdr, mbuf, next);
b->last = b->pos;
r->pos = decrypted_buf->start;
mbuf_insert(&r->mhdr, decrypted_buf);
}
if (r->redis)
return redis_parse_rsp(r);
return memcache_parse_rsp(r);
}
#ifdef DN_DEBUG_LOG
//bad case
log_debug(LOG_DEBUG, "Bad message - cannot parse"); //fix me to do something
msg_dump(r);
#endif
//r->state = 0;
//r->result = MSG_PARSE_OK;
}
void dyn_parse_rsp(struct msg *r)
{
if (log_loggable(LOG_VVERB)) {
log_debug(LOG_VVERB, ":::::::::::::::::::::: In dyn_parse_rsp, start to process response :::::::::::::::::::::::: ");
msg_dump(r);
}
bool done_parsing = false;
struct mbuf *b = STAILQ_LAST(&r->mhdr, mbuf, next);
if (dyn_parse_core(r)) {
struct dmsg *dmsg = r->dmsg;
struct conn *conn = r->owner;
conn->same_dc = dmsg->same_dc;
if (dmsg->type != DMSG_UNKNOWN && dmsg->type != DMSG_RES) {
log_debug(LOG_DEBUG, "Resp parser: I got a dnode msg of type %d", dmsg->type);
r->state = 0;
r->result = MSG_PARSE_OK;
r->dyn_state = DYN_DONE;
return;
}
if (r->dyn_state == DYN_DONE && dmsg->bit_field == 1) {
dmsg->owner->owner->dnode_secured = 1;
r->owner->dnode_crypto_state = 1;
r->dyn_state = DYN_POST_DONE;
r->result = MSG_PARSE_REPAIR;
if (dmsg->mlen > 1) {
//Decrypt AES key
dyn_rsa_decrypt(dmsg->data, aes_decrypted_buf);
strncpy(r->owner->aes_key, aes_decrypted_buf, strlen(aes_decrypted_buf));
}
if (dmsg->plen + b->pos <= b->last) {
struct mbuf *decrypted_buf = mbuf_get();
if (decrypted_buf == NULL) {
loga("Unable to obtain an mbuf for dnode msg's header!");
r->result = MSG_OOM_ERROR;
return;
}
dyn_aes_decrypt(b->pos, dmsg->plen, decrypted_buf, r->owner->aes_key);
b->pos = b->pos + dmsg->plen;
r->pos = decrypted_buf->start;
mbuf_copy(decrypted_buf, b->pos, mbuf_length(b));
mbuf_insert(&r->mhdr, decrypted_buf);
mbuf_remove(&r->mhdr, b);
mbuf_put(b);
r->mlen = mbuf_length(decrypted_buf);
if (r->redis) {
return redis_parse_rsp(r);
}
return memcache_parse_rsp(r);
}
//substract alraedy received bytes
dmsg->plen -= b->last - b->pos;
return;
} else if (r->dyn_state == DYN_POST_DONE) {
struct mbuf *last_buf = STAILQ_LAST(&r->mhdr, mbuf, next);
if (last_buf->read_flip == 1) {
if (r->redis)
redis_parse_rsp(r);
else
memcache_parse_rsp(r);
} else {
r->result = MSG_PARSE_AGAIN;
}
return;
}
if (done_parsing)
return;
if (r->redis) {
return redis_parse_rsp(r);
}
return memcache_parse_rsp(r);
}
//bad case
if (log_loggable(LOG_DEBUG)) {
log_debug(LOG_DEBUG, "Resp: bad message - cannot parse"); //fix me to do something
msg_dump(r);
}
r->result = MSG_PARSE_AGAIN;
}