rstatus_t
dmsg_write(struct mbuf *mbuf, uint64_t msg_id, uint8_t type,
struct conn *conn, uint32_t payload_len)
{
mbuf_write_string(mbuf, &MAGIC_STR);
mbuf_write_uint64(mbuf, msg_id);
mbuf_write_char(mbuf, ' ');
mbuf_write_uint8(mbuf, type);
mbuf_write_char(mbuf, ' ');
//encryption bit
if (conn->dnode_secured) {
mbuf_write_uint8(mbuf, 1);
} else {
mbuf_write_uint8(mbuf, 0);
}
mbuf_write_char(mbuf, ' ');
mbuf_write_uint8(mbuf, version);
//mbuf_write_string(mbuf, &CRLF_STR);
mbuf_write_char(mbuf, ' ');
mbuf_write_char(mbuf, '*');
//write aes key
unsigned char *aes_key = conn->aes_key;
if (conn->dnode_secured && conn->dnode_crypto_state == 0) {
mbuf_write_uint32(mbuf, AES_ENCRYPTED_KEYLEN);
} else {
mbuf_write_uint32(mbuf, 1);
}
mbuf_write_char(mbuf, ' ');
//mbuf_write_string(mbuf, data);
if (conn->dnode_secured && conn->dnode_crypto_state == 0) {
#ifdef DN_DEBUG_LOG
loga("AES key to be encrypted : %s \n", base64_encode(aes_key, 32));
#endif
dyn_rsa_encrypt(aes_key, aes_encrypted_buf);
mbuf_write_bytes(mbuf, aes_encrypted_buf, AES_ENCRYPTED_KEYLEN);
conn->dnode_crypto_state = 1;
} else {
mbuf_write_char(mbuf, 'd'); //TODOs: replace with another string
}
//mbuf_write_string(mbuf, &CRLF_STR);
mbuf_write_char(mbuf, ' ');
mbuf_write_char(mbuf, '*');
mbuf_write_uint32(mbuf, payload_len);
mbuf_write_string(mbuf, &CRLF_STR);
#ifdef DN_DEBUG_LOG
log_hexdump(LOG_VERB, mbuf->pos, mbuf_length(mbuf), "dyn message producer: ");
#endif
return DN_OK;
}
void
mbuf_write_uint8(struct mbuf *mbuf, uint8_t num)
{
if (num < 10) {
mbuf_write_char(mbuf, '0' + num);
return;
}
mbuf_write_uint8(mbuf, num / 10);
mbuf_write_char(mbuf, '0' + (num % 10));
}
//Used in gossip forwarding msg only for now
rstatus_t
dmsg_write_mbuf(struct mbuf *mbuf, uint64_t msg_id, uint8_t type, struct conn *conn, uint32_t plen)
{
mbuf_write_string(mbuf, &MAGIC_STR);
mbuf_write_uint64(mbuf, msg_id);
mbuf_write_char(mbuf, ' ');
mbuf_write_uint8(mbuf, type);
mbuf_write_char(mbuf, ' ');
//encryption bit
if (conn->dnode_secured) {
mbuf_write_uint8(mbuf, 1);
} else {
mbuf_write_uint8(mbuf, 0);
}
mbuf_write_char(mbuf, ' ');
mbuf_write_uint8(mbuf, version);
//same-dc
mbuf_write_char(mbuf, ' ');
if (conn->same_dc)
mbuf_write_uint8(mbuf, 1);
else
mbuf_write_uint8(mbuf, 0);
//mbuf_write_string(mbuf, &CRLF_STR);
mbuf_write_char(mbuf, ' ');
mbuf_write_char(mbuf, '*');
//write aes key
unsigned char *aes_key = conn->aes_key;
if (conn->dnode_secured) {
mbuf_write_uint32(mbuf, dyn_rsa_size());
} else {
mbuf_write_uint32(mbuf, 1);
}
mbuf_write_char(mbuf, ' ');
//mbuf_write_mbuf(mbuf, data);
if (conn->dnode_secured) {
dyn_rsa_encrypt(aes_key, aes_encrypted_buf);
mbuf_write_bytes(mbuf, aes_encrypted_buf, dyn_rsa_size());
} else {
mbuf_write_char(mbuf, 'a'); //TODOs: replace with another string
}
//mbuf_write_string(mbuf, &CRLF_STR);
mbuf_write_char(mbuf, ' ');
mbuf_write_char(mbuf, '*');
mbuf_write_uint32(mbuf, plen);
mbuf_write_string(mbuf, &CRLF_STR);
return DN_OK;
}
rstatus_t
dnode_peer_handshake_announcing(void *rmsg)
{
rstatus_t status;
struct ring_msg *msg = rmsg;
struct server_pool *sp = msg->sp;
log_debug(LOG_VVERB, "dyn: handshaking peers");
struct array *peers = &sp->peers;
uint32_t i,nelem;
nelem = array_n(peers);
//we assume one mbuf is enough for now - will enhance with multiple mbufs later
struct mbuf *mbuf = mbuf_get();
if (mbuf == NULL) {
log_debug(LOG_VVERB, "Too bad, not enough memory!");
return DN_ENOMEM;
}
//annoucing myself by sending msg: 'dc$rack$token,started_ts,node_state,node_dns'
mbuf_write_string(mbuf, &sp->dc);
mbuf_write_char(mbuf, '$');
mbuf_write_string(mbuf, &sp->rack);
mbuf_write_char(mbuf, '$');
struct dyn_token *token = (struct dyn_token *) array_get(&sp->tokens, 0);
if (token == NULL) {
log_debug(LOG_VVERB, "Why? This should not be null!");
mbuf_put(mbuf);
return DN_ERROR;
}
mbuf_write_uint32(mbuf, token->mag[0]);
mbuf_write_char(mbuf, ',');
int64_t cur_ts = (int64_t)time(NULL);
mbuf_write_uint64(mbuf, cur_ts);
mbuf_write_char(mbuf, ',');
mbuf_write_uint8(mbuf, sp->ctx->dyn_state);
mbuf_write_char(mbuf, ',');
char *broadcast_addr = get_broadcast_address(sp);
mbuf_write_bytes(mbuf, broadcast_addr, dn_strlen(broadcast_addr));
//for each peer, send a registered msg
for (i = 0; i < nelem; i++) {
struct server *peer = (struct server *) array_get(peers, i);
if (peer->is_local)
continue;
log_debug(LOG_VVERB, "Gossiping to node '%.*s'", peer->name.len, peer->name.data);
struct conn * conn = dnode_peer_conn(peer);
if (conn == NULL) {
//running out of connection due to memory exhaust
log_debug(LOG_DEBUG, "Unable to obtain a connection object");
return DN_ERROR;
}
status = dnode_peer_connect(sp->ctx, peer, conn);
if (status != DN_OK ) {
dnode_peer_close(sp->ctx, conn);
log_debug(LOG_DEBUG, "Error happened in connecting on conn %d", conn->sd);
return DN_ERROR;
}
//conn->
dnode_peer_gossip_forward(sp->ctx, conn, sp->redis, mbuf);
//peer_gossip_forward1(sp->ctx, conn, sp->redis, &data);
}
//free this as nobody else will do
//mbuf_put(mbuf);
return DN_OK;
}
