void
p2pRequest(struct session *session_a, struct session *session_b)
{
char *ip_a;
char *ip_b;
uint32_t port;
DNDSMessage_t *msg;
if (session_a->netc == NULL || session_b->netc == NULL) {
return;
}
if (!strcmp(session_a->netc->peer->host, session_b->netc->peer->host)) {
ip_a = session_a->ip_local;
ip_b = session_b->ip_local;
} else {
ip_a = session_a->netc->peer->host;
ip_b = session_b->netc->peer->host;
}
/* basic random port : 49152–65535 */
port = rand() % (65535-49152+1)+49152;
jlog(L_DEBUG, "node A ip public %s", ip_a);
jlog(L_DEBUG, "node B ip public %s", ip_b);
/* msg session A */
DNDSMessage_new(&msg);
DNDSMessage_set_pdu(msg, pdu_PR_dnm);
DNMessage_set_operation(msg, dnop_PR_p2pRequest);
P2pRequest_set_macAddrDst(msg, session_b->tun_mac_addr);
P2pRequest_set_ipAddrDst(msg, ip_b);
P2pRequest_set_port(msg, port);
P2pRequest_set_side(msg, P2pSide_client);
net_send_msg(session_a->netc, msg);
DNDSMessage_del(msg);
/* msg session B */
DNDSMessage_new(&msg);
DNDSMessage_set_pdu(msg, pdu_PR_dnm);
DNMessage_set_operation(msg, dnop_PR_p2pRequest);
P2pRequest_set_macAddrDst(msg, session_a->tun_mac_addr);
P2pRequest_set_ipAddrDst(msg, ip_a);
P2pRequest_set_port(msg, port);
P2pRequest_set_side(msg, P2pSide_server);
net_send_msg(session_b->netc, msg);
DNDSMessage_del(msg);
}
static void on_secure(netc_t *netc)
{
struct session *session;
session = netc->ext_ptr;
if (session->state == SESSION_STATE_WAIT_STEPUP) {
/* Set the session as authenticated */
session->state = SESSION_STATE_AUTHED;
/* Send a message to acknowledge the client */
DNDSMessage_t *msg = NULL;
DNDSMessage_new(&msg);
DNDSMessage_set_channel(msg, 0);
DNDSMessage_set_pdu(msg, pdu_PR_dnm);
DNMessage_set_seqNumber(msg, 1);
DNMessage_set_ackNumber(msg, 0);
DNMessage_set_operation(msg, dnop_PR_authResponse);
AuthResponse_set_result(msg, DNDSResult_success);
net_send_msg(session->netc, msg);
DNDSMessage_del(msg);
context_add_session(session->context, session);
jlog(L_DEBUG, "session id: %d", session->id);
}
}
void test_NetinfoResponse()
{
/// Building a NetinfoResponse ///
DNDSMessage_t *msg; // a DNDS Message
DNDSMessage_new(&msg);
DNDSMessage_set_channel(msg, 0);
DNDSMessage_set_pdu(msg, pdu_PR_dnm);
DNMessage_set_seqNumber(msg, 0);
DNMessage_set_ackNumber(msg, 600);
DNMessage_set_operation(msg, dnop_PR_netinfoResponse);
NetinfoResponse_set_ipAddress(msg, "192.168.10.5");
NetinfoResponse_set_netmask(msg, "255.255.255.0");
NetinfoResponse_set_result(msg, DNDSResult_success);
/// Encoding part
asn_enc_rval_t ec; // Encoder return value
FILE *fp = fopen("dnds.ber", "wb"); // BER output
ec = der_encode(&asn_DEF_DNDSMessage, msg, write_out, fp);
fclose(fp);
xer_fprint(stdout, &asn_DEF_DNDSMessage, msg);
DNDSMessage_del(msg);
}
void test_NetinfoRequest()
{
/// Building a NetinfoRequest ///
DNDSMessage_t *msg; // a DNDS Message
DNDSMessage_new(&msg);
DNDSMessage_set_channel(msg, 0);
DNDSMessage_set_pdu(msg, pdu_PR_dnm);
DNMessage_set_seqNumber(msg, 600);
DNMessage_set_ackNumber(msg, 0);
DNMessage_set_operation(msg, dnop_PR_netinfoRequest);
uint8_t macAddr[ETH_ALEN] = { 0xd, 0xe, 0xa, 0xd, 0xb, 0xe };
NetinfoRequest_set_ipLocal(msg, "192.168.10.10");
NetinfoRequest_set_macAddr(msg, macAddr);
/// Encoding part
asn_enc_rval_t ec; // Encoder return value
FILE *fp = fopen("dnds.ber", "wb"); // BER output
ec = der_encode(&asn_DEF_DNDSMessage, msg, write_out, fp);
fclose(fp);
xer_fprint(stdout, &asn_DEF_DNDSMessage, msg);
DNDSMessage_del(msg);
}
void test_AuthResponse_dnm()
{
/// Building an AuthRequest ///
DNDSMessage_t *msg; // a DNDS Message
DNDSMessage_new(&msg);
DNDSMessage_set_channel(msg, 0);
DNDSMessage_set_pdu(msg, pdu_PR_dnm); // Dynamic Network Message
DNMessage_set_seqNumber(msg, 0);
DNMessage_set_ackNumber(msg, 100);
DNMessage_set_operation(msg, dnop_PR_authResponse);
AuthResponse_set_result(msg, DNDSResult_success);
/// Encoding part
asn_enc_rval_t ec; // Encoder return value
FILE *fp = fopen("dnds.ber", "wb"); // BER output
ec = der_encode(&asn_DEF_DNDSMessage, msg, write_out, fp);
fclose(fp);
xer_fprint(stdout, &asn_DEF_DNDSMessage, msg);
DNDSMessage_del(msg);
}
void test_P2pResponse_dnm()
{
/// Building a P2pRequest ///
uint8_t macAddrDst[ETH_ALEN] = { 0xaf, 0xbe, 0xcd, 0xdc, 0xeb, 0xfa };
DNDSMessage_t *msg; // a DNDS Message
DNDSMessage_new(&msg);
DNDSMessage_set_channel(msg, 0);
DNDSMessage_set_pdu(msg, pdu_PR_dnm); // Dynamic Network Message
DNMessage_set_seqNumber(msg, 0);
DNMessage_set_ackNumber(msg, 801);
DNMessage_set_operation(msg, dnop_PR_p2pResponse);
P2pResponse_set_macAddrDst(msg, macAddrDst);
P2pResponse_set_result(msg, DNDSResult_success);
/// Encoding part
asn_enc_rval_t ec; // Encoder return value
FILE *fp = fopen("dnds.ber", "wb"); // BER output
ec = der_encode(&asn_DEF_DNDSMessage, msg, write_out, fp);
fclose(fp);
xer_fprint(stdout, &asn_DEF_DNDSMessage, msg);
DNDSMessage_del(msg);
}
void test_P2pRequest_dnm()
{
/// Building a P2pRequest ///
int ret;
uint8_t macAddrSrc[ETH_ALEN] = { 0xe6, 0x1b, 0x23, 0x0c, 0x0c, 0x5d };
uint8_t macAddrDst[ETH_ALEN] = { 0xe6, 0x1b, 0x23, 0x0c, 0x0c, 0x5d };
DNDSMessage_t *msg; // a DNDS Message
DNDSMessage_new(&msg);
DNDSMessage_set_channel(msg, 0);
DNDSMessage_set_pdu(msg, pdu_PR_dnm); // Dynamic Network Message
DNMessage_set_seqNumber(msg, 801);
DNMessage_set_ackNumber(msg, 0);
DNMessage_set_operation(msg, dnop_PR_p2pRequest);
P2pRequest_set_ipAddrDst(msg, "66.55.44.33");
P2pRequest_set_port(msg, 9000);
P2pRequest_set_side(msg, P2pSide_client);
P2pRequest_set_macAddrDst(msg, macAddrDst);
/// Encoding part
asn_enc_rval_t ec; // Encoder return value
FILE *fp = fopen("dnds.ber", "wb"); // BER output
ec = der_encode(&asn_DEF_DNDSMessage, msg, write_out, fp);
fclose(fp);
xer_fprint(stdout, &asn_DEF_DNDSMessage, msg);
DNDSMessage_del(msg);
}
void transmit_netinfo_response(netc_t *netc)
{
struct session *session = netc->ext_ptr;
DNDSMessage_t *msg = NULL;
DNDSMessage_new(&msg);
DNDSMessage_set_channel(msg, 0);
DNDSMessage_set_pdu(msg, pdu_PR_dnm);
DNMessage_set_seqNumber(msg, 1);
DNMessage_set_ackNumber(msg, 0);
DNMessage_set_operation(msg, dnop_PR_netinfoResponse);
net_send_msg(session->netc, msg);
DNDSMessage_del(msg);
transmit_node_connectinfo(ConnectState_connected,
session->ip, session->cert_name);
}
/* Authentication Request from the node */
int
authRequest(struct session *session, DNDSMessage_t *req_msg)
{
char *certName = NULL;
size_t length = 0;
struct session *old_session = NULL;
if (session->state != SESSION_STATE_NOT_AUTHED) {
jlog(L_WARNING, "authRequest duplicate");
return -1;
}
DNDSMessage_t *msg = NULL;
DNDSMessage_new(&msg);
DNDSMessage_set_channel(msg, 0);
DNDSMessage_set_pdu(msg, pdu_PR_dnm);
DNMessage_set_seqNumber(msg, 1);
DNMessage_set_ackNumber(msg, 0);
DNMessage_set_operation(msg, dnop_PR_authResponse);
AuthRequest_get_certName(req_msg, &certName, &length);
jlog(L_DEBUG, "URI:%s", certName);
session->node_info = cn2node_info(certName);
if (session->node_info == NULL) {
jlog(L_WARNING, "cn2node_info failed");
DNDSMessage_del(msg);
return -1;
}
// jlog(L_DEBUG, "type: %s", session->node_info->type);
jlog(L_DEBUG, "uuid: %s", session->node_info->uuid);
jlog(L_DEBUG, "network_uuid: %s", session->node_info->network_uuid);
jlog(L_DEBUG, "network_id: %s", session->node_info->network_id);
jlog(L_DEBUG, "v: %d", session->node_info->v);
if (session->node_info->v == 1) {
session->vnetwork = vnetwork_lookup_id(session->node_info->network_id);
if (session->vnetwork != NULL) {
strncpy(session->node_info->network_uuid, session->vnetwork->uuid, 36);
session->node_info->network_uuid[36] = '\0';
}
} else
session->vnetwork = vnetwork_lookup(session->node_info->network_uuid);
if (session->vnetwork == NULL) {
AuthResponse_set_result(msg, DNDSResult_noRight);
net_send_msg(session->netc, msg);
DNDSMessage_del(msg);
return -1;
}
/* check if the node's uuid is known
if (ctable_find(session->context->atable, session->node_info->uuid) == NULL) {
AuthResponse_set_result(msg, DNDSResult_noRight);
net_send_msg(session->netc, msg);
DNDSMessage_del(msg);
jlog(L_ERROR, "authentication failed, invalid certificate");
return -1;
}
*/
/* check if the node is already connected */
old_session = ctable_find(session->vnetwork->ctable, session->node_info->uuid);
// if (old_session == NULL) {
ctable_insert(session->vnetwork->ctable, session->node_info->uuid, session);
/*
} else {
// that node is already connected, if the new session is from the same IP
// disconnect the old session, and let this one connect
if (old_session->ip == NULL) {
net_disconnect(old_session->netc);
ctable_insert(session->vnetwork->ctable, session->node_info->uuid, session);
} else if (strcmp(old_session->ip, session->ip) == 0) {
net_disconnect(old_session->netc);
ctable_insert(session->vnetwork->ctable, session->node_info->uuid, session);
}
}
*/
session->cert_name = strdup(certName);
if (session->netc->security_level == NET_UNSECURE) {
AuthResponse_set_result(msg, DNDSResult_success);
net_send_msg(session->netc, msg);
session->state = SESSION_STATE_AUTHED;
session->netc->on_secure(session->netc);
} else {
AuthResponse_set_result(msg, DNDSResult_secureStepUp);
net_send_msg(session->netc, msg);
krypt_add_passport(session->netc->kconn, session->vnetwork->passport);
session->state = SESSION_STATE_WAIT_STEPUP;
net_step_up(session->netc);
}
DNDSMessage_del(msg);
return 0;
}
int
provisioning(json_t *jmsg)
{
char *cert;
char *ipaddr;
char *pkey;
char *response;
char *tcert;
char *tid;
json_t *node;
struct session *session;
if (json_unpack(jmsg, "{s:s}", "response", &response) == -1) {
jlog(L_ERROR, "json_unpack failed");
return -1;
}
if (strcmp(response, "success") != 0) {
jlog(L_ERROR, "provisioning != success");
return -1;
}
if (json_unpack(jmsg, "{s:s}", "tid", &tid) == -1) {
jlog(L_ERROR, "json_unpack failed");
return -1;
}
if ((node = json_object_get(jmsg, "node")) == NULL) {
jlog(L_ERROR, "json_object_get failed");
return -1;
}
if (json_unpack(node, "{s:s}", "cert", &cert) == -1 ||
json_unpack(node, "{s:s}", "pkey", &pkey) == -1 ||
json_unpack(node, "{s:s}", "tcert", &tcert) == -1 ||
json_unpack(node, "{s:s}", "ipaddr", &ipaddr) == -1) {
jlog(L_ERROR, "NULL parameter");
return -1;
}
DNDSMessage_t *new_msg;
DNDSMessage_new(&new_msg);
DNDSMessage_set_channel(new_msg, 0);
DNDSMessage_set_pdu(new_msg, pdu_PR_dnm);
DNMessage_set_operation(new_msg, dnop_PR_provResponse);
ProvResponse_set_certificate(new_msg, cert, strlen(cert));
ProvResponse_set_certificateKey(new_msg, (uint8_t*)pkey, strlen(pkey));
ProvResponse_set_trustedCert(new_msg, (uint8_t*)tcert, strlen(tcert));
ProvResponse_set_ipAddress(new_msg, ipaddr);
session = session_tracking_table[atoi(tid) % MAX_SESSION];
session_tracking_table[atoi(tid) % MAX_SESSION] = NULL;
if (session)
net_send_msg(session->netc, new_msg);
DNDSMessage_del(new_msg);
/* XXX
* If the provisioning is not a success,
* we must disconnect the client.
*/
return 0;
}