/**
* This method will be invoked whene the rw.cli executes a command and
* requires a transport to send the message.
*/
static rw_status_t messaging_hook(NetconfReq *req, NetconfRsp **rsp)
{
// Send message to the CLI-AGENT and wait for a message back
unsigned msg_len = netconf_req__get_packed_size(NULL, req);
uint8_t msg_buf[msg_len];
rw_status_t status;
netconf_req__pack(NULL, req, msg_buf);
if (rwcli_agent_ch.in.fd.write == -1) {
RWTRACE_CRIT(rwcli_trace, RWTRACE_CATEGORY_RWCLI,
"Messaging not initialized, failed to execute the command");
return RW_STATUS_FAILURE;
}
// Consume any prvious unread messages on the stream
consume_unread_agent_messages();
// TODO handle EPIPE
write(rwcli_agent_ch.in.fd.write, (const void*)(&msg_len), sizeof(unsigned));
write(rwcli_agent_ch.in.fd.write, msg_buf, msg_len);
RWTRACE_DEBUG(rwcli_trace, RWTRACE_CATEGORY_RWCLI,
"\nSHELL: sent %d bytes to CLI-AGENT", msg_len);
status = recv_msg_from_agent(&msg_len);
if (status != RW_STATUS_SUCCESS) {
*rsp = NULL;
return status;
}
RWTRACE_DEBUG(rwcli_trace, RWTRACE_CATEGORY_RWCLI,
"\nSHELL: received %u bytes from CLI-AGENT msglen\n", msg_len);
rw_resp = netconf_rsp__unpack(NULL, msg_len, recv_buf);
if (rw_resp == NULL) {
RWTRACE_ERROR(rwcli_trace, RWTRACE_CATEGORY_RWCLI,
"\nReceived message unpack failed\n");
*rsp = NULL;
return RW_STATUS_FAILURE;
}
*rsp = rw_resp;
return RW_STATUS_SUCCESS;
}
/**
* Handler for Netconf message type. Sends the encoded the NetconfReq protobuf
* and receives the decoded NetconfRsp protobuf.
*
* @param[in] inst - RW.CLI Controller instance
* @param[in] req - Netconf Request decoded protobuf
* @param[out] rsp - Netconf response (decoded)
*
* @returns RW_STATUS_SUCCESS on success, RW_STATUS_FAILURE otherwise.
*/
static rw_status_t controller_handle_rwnetconf_msg(
rwcli_controller_t* inst,
NetconfReq* req, NetconfRsp **rsp)
{
unsigned recv_msg_len = 0;
unsigned msg_len = netconf_req__get_packed_size(NULL, req);
uint8_t msg_buf[msg_len];
rw_status_t status;
// Encode the protobuf
netconf_req__pack(NULL, req, msg_buf);
status = controller_execute(inst, inst->agent_type,
RWCLI_MSG_TYPE_RW_NETCONF,
msg_buf, msg_len, &recv_msg_len);
if (status != RW_STATUS_SUCCESS) {
*rsp = NULL;
return status;
}
// Decode the response
inst->resp = netconf_rsp__unpack(NULL, recv_msg_len,
inst->recv_buf);
if (inst->resp == NULL) {
RWTRACE_ERROR(inst->trace_ctxt, RWTRACE_CATEGORY_RWCLI,
"\nReceived message unpack failed\n");
*rsp = NULL;
return RW_STATUS_FAILURE;
}
// The response is stored in the controller to be deleted later after the
// response is processed by the RW.CLI plugin.
*rsp = inst->resp;
return RW_STATUS_SUCCESS;
}
