Commit 95d51446 authored by Xenofon Foukas's avatar Xenofon Foukas

Added ue_state_change stub implementation

parent 465168d2
......@@ -604,13 +604,80 @@ int enb_agent_destroy_lc_config_reply(Protocol__ProgranMessage *msg) {
}
int enb_agent_ue_state_change(mid_t mod_id, uint32_t rnti, uint8_t state_change) {
/* TODO: Create a progRAN message with the state changes requested for the UE with RNTI rnti */
return 0;
int size;
Protocol__ProgranMessage *msg;
Protocol__PrpHeader *header;
void *data;
int priority;
err_code_t err_code;
int xid = 0;
if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_UE_STATE_CHANGE, &header) != 0)
goto error;
Protocol__PrpUeStateChange *ue_state_change_msg;
ue_state_change_msg = malloc(sizeof(Protocol__PrpUeStateChange));
if(ue_state_change_msg == NULL) {
goto error;
}
protocol__prp_ue_state_change__init(ue_state_change_msg);
ue_state_change_msg->has_type = 1;
ue_state_change_msg->type = state_change;
Protocol__PrpUeConfig *config;
config = malloc(sizeof(Protocol__PrpUeConfig));
if (config == NULL) {
goto error;
}
protocol__prp_ue_config__init(config);
if (state_change == PROTOCOL__PRP_UE_STATE_CHANGE_TYPE__PRUESC_DEACTIVATED) {
// Simply set the rnti of the UE
config->has_rnti = 1;
config->rnti = rnti;
} else if (state_change == PROTOCOL__PRP_UE_STATE_CHANGE_TYPE__PRUESC_UPDATED
|| state_change == PROTOCOL__PRP_UE_STATE_CHANGE_TYPE__PRUESC_ACTIVATED) {
// TODO: Set the whole UE configuration message
} else if (state_change == PROTOCOL__PRP_UE_STATE_CHANGE_TYPE__PRUESC_MOVED) {
// TODO: Not supported for now. Leave blank
}
ue_state_change_msg->config = config;
msg = malloc(sizeof(Protocol__ProgranMessage));
if (msg == NULL) {
goto error;
}
protocol__progran_message__init(msg);
msg->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_UE_STATE_CHANGE_MSG;
msg->msg_dir = PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
msg->ue_state_change_msg = ue_state_change_msg;
data = enb_agent_pack_message(msg, &size);
/*Send sr info using the MAC channel of the eNB*/
if (enb_agent_msg_send(mod_id, ENB_AGENT_DEFAULT, data, size, priority)) {
err_code = PROTOCOL__PROGRAN_ERR__MSG_ENQUEUING;
goto error;
}
LOG_D(ENB_AGENT,"sent message with size %d\n", size);
return;
error:
LOG_D(ENB_AGENT, "Could not send UE state message\n");
}
int enb_agent_destroy_ue_state_change(Protocol__ProgranMessage *msg) {
/* TODO: Dealocate memory for a dynamically allocated UE state change message */
if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_UE_STATE_CHANGE_MSG)
goto error;
free(msg->ue_state_change_msg->header);
//TODO: Free the contents of the UE config structure
free(msg->ue_state_change_msg);
free(msg);
return 0;
error:
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_destroy_enb_config_request(Protocol__ProgranMessage *msg) {
......
......@@ -1266,7 +1266,7 @@ int enb_agent_register_mac_xface(mid_t mod_id, AGENT_MAC_xface *xface) {
xface->enb_agent_send_sf_trigger = enb_agent_send_sf_trigger;
xface->enb_agent_send_update_mac_stats = enb_agent_send_update_mac_stats;
xface->enb_agent_schedule_ue_spec = schedule_ue_spec_default;
xface->enb_agent_notify_ue_state_change = enb_agent_ue_state_change;
mac_agent_registered[mod_id] = 1;
agent_mac_xface[mod_id] = xface;
......
......@@ -62,6 +62,12 @@ typedef struct {
void (*enb_agent_schedule_ue_spec)(mid_t mod_id, uint32_t frame, uint32_t subframe,
int *mbsfn_flag, Protocol__ProgranMessage *dl_info);
/// Notify the controller for a state change of a particular UE, by sending the proper
/// UE state change message (ACTIVATION, DEACTIVATION, HANDOVER)
void (*enb_agent_notify_ue_state_change)(mid_t mod_id, uint32_t rnti,
uint32_t state_change);
/*TODO: Fill in with the rest of the MAC layer technology specific callbacks (UL/DL scheduling, RACH info etc)*/
} AGENT_MAC_xface;
......
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