static int rtcfg_client_get_frag(int ifindex, struct rt_proc_call *call)
{
struct rtcfg_device *rtcfg_dev = &device[ifindex];
struct rtcfg_cmd *cmd_event;
cmd_event = rtpc_get_priv(call, struct rtcfg_cmd);
if ((rtcfg_dev->flags & RTCFG_FLAG_STAGE_2_DATA) == 0) {
rtos_res_unlock(&rtcfg_dev->dev_lock);
return -EINVAL;
}
rtcfg_send_ack(ifindex);
if (rtcfg_dev->spec.clt.cfg_offs >= rtcfg_dev->spec.clt.cfg_len) {
if (rtcfg_dev->stations_found == rtcfg_dev->other_stations) {
rtpc_complete_call(call, 0);
rtcfg_next_main_state(ifindex,
((rtcfg_dev->flags & RTCFG_FLAG_READY) != 0) ?
RTCFG_MAIN_CLIENT_READY : RTCFG_MAIN_CLIENT_2);
} else {
rtcfg_next_main_state(ifindex, RTCFG_MAIN_CLIENT_ALL_FRAMES);
rtcfg_queue_blocking_call(ifindex, call);
}
} else
rtcfg_queue_blocking_call(ifindex, call);
rtos_res_unlock(&rtcfg_dev->dev_lock);
return -CALL_PENDING;
}
static int rtcfg_client_get_frag(int ifindex, struct rt_proc_call *call)
{
struct rtcfg_device *rtcfg_dev = &device[ifindex];
if (test_bit(RTCFG_FLAG_STAGE_2_DATA, &rtcfg_dev->flags) == 0) {
rtdm_mutex_unlock(&rtcfg_dev->dev_mutex);
return -EINVAL;
}
rtcfg_send_ack(ifindex);
if (rtcfg_dev->spec.clt.cfg_offs >= rtcfg_dev->spec.clt.cfg_len) {
if (rtcfg_dev->stations_found == rtcfg_dev->other_stations) {
rtpc_complete_call(call, 0);
rtcfg_next_main_state(ifindex,
test_bit(RTCFG_FLAG_READY,
&rtcfg_dev->flags) ?
RTCFG_MAIN_CLIENT_READY : RTCFG_MAIN_CLIENT_2);
} else {
rtcfg_next_main_state(ifindex, RTCFG_MAIN_CLIENT_ALL_FRAMES);
rtcfg_queue_blocking_call(ifindex, call);
}
} else
rtcfg_queue_blocking_call(ifindex, call);
rtdm_mutex_unlock(&rtcfg_dev->dev_mutex);
return -CALL_PENDING;
}
static void rtcfg_client_recv_stage_2_frag(int ifindex, struct rtskb *rtskb)
{
struct rtcfg_frm_stage_2_cfg_frag *stage_2_frag;
struct rtcfg_device *rtcfg_dev = &device[ifindex];
size_t data_len;
if (rtskb->len < sizeof(struct rtcfg_frm_stage_2_cfg_frag)) {
rtos_res_unlock(&rtcfg_dev->dev_lock);
RTCFG_DEBUG(1, "RTcfg: received invalid stage_2_cfg_frag frame\n");
kfree_rtskb(rtskb);
return;
}
stage_2_frag = (struct rtcfg_frm_stage_2_cfg_frag *)rtskb->data;
__rtskb_pull(rtskb, sizeof(struct rtcfg_frm_stage_2_cfg_frag));
data_len = MIN(rtcfg_dev->spec.clt.cfg_len - rtcfg_dev->spec.clt.cfg_offs,
rtskb->len);
if ((rtcfg_dev->flags & RTCFG_FLAG_STAGE_2_DATA) == 0) {
RTCFG_DEBUG(1, "RTcfg: unexpected stage 2 fragment, we did not "
"request any data!\n");
} else if (rtcfg_dev->spec.clt.cfg_offs !=
ntohl(stage_2_frag->frag_offs)) {
RTCFG_DEBUG(1, "RTcfg: unexpected stage 2 fragment (expected: %d, "
"received: %d)\n", rtcfg_dev->spec.clt.cfg_offs,
ntohl(stage_2_frag->frag_offs));
rtcfg_send_ack(ifindex);
rtcfg_dev->spec.clt.packet_counter = 0;
} else {
rtcfg_client_queue_frag(ifindex, rtskb, data_len);
rtskb = NULL;
}
rtos_res_unlock(&rtcfg_dev->dev_lock);
if (rtskb != NULL)
kfree_rtskb(rtskb);
}
static void rtcfg_client_recv_stage_2_cfg(int ifindex, struct rtskb *rtskb)
{
struct rtcfg_frm_stage_2_cfg *stage_2_cfg;
struct rtcfg_device *rtcfg_dev = &device[ifindex];
size_t data_len;
int ret;
if (rtskb->len < sizeof(struct rtcfg_frm_stage_2_cfg)) {
rtos_res_unlock(&rtcfg_dev->dev_lock);
RTCFG_DEBUG(1, "RTcfg: received invalid stage_2_cfg frame\n");
kfree_rtskb(rtskb);
return;
}
stage_2_cfg = (struct rtcfg_frm_stage_2_cfg *)rtskb->data;
__rtskb_pull(rtskb, sizeof(struct rtcfg_frm_stage_2_cfg));
if (stage_2_cfg->heartbeat_period) {
ret = rtos_task_init_periodic(&rtcfg_dev->timer_task, rtcfg_timer,
(void *)ifindex, RTOS_LOWEST_RT_PRIORITY,
((nanosecs_t)ntohs(stage_2_cfg->heartbeat_period)) * 1000000);
if (ret < 0)
/*ERRMSG*/rtos_print("RTcfg: unable to create timer task\n");
else
rtcfg_dev->flags |= FLAG_TIMER_STARTED;
}
/* add server to station list */
if (rtcfg_add_to_station_list(rtcfg_dev,
rtskb->mac.ethernet->h_source, stage_2_cfg->flags) < 0) {
rtos_res_unlock(&rtcfg_dev->dev_lock);
RTCFG_DEBUG(1, "RTcfg: unable to process stage_2_cfg frage\n");
kfree_rtskb(rtskb);
return;
}
rtcfg_dev->other_stations = ntohl(stage_2_cfg->stations);
rtcfg_dev->spec.clt.cfg_len = ntohl(stage_2_cfg->cfg_len);
data_len = MIN(rtcfg_dev->spec.clt.cfg_len, rtskb->len);
if (((rtcfg_dev->flags & RTCFG_FLAG_STAGE_2_DATA) != 0) &&
(data_len > 0)) {
rtcfg_client_queue_frag(ifindex, rtskb, data_len);
rtskb = NULL;
if (rtcfg_dev->stations_found == rtcfg_dev->other_stations)
rtcfg_next_main_state(ifindex, RTCFG_MAIN_CLIENT_ALL_KNOWN);
} else {
if (rtcfg_dev->stations_found == rtcfg_dev->other_stations) {
rtcfg_complete_cmd(ifindex, RTCFG_CMD_ANNOUNCE, 0);
rtcfg_next_main_state(ifindex,
((rtcfg_dev->flags & RTCFG_FLAG_READY) != 0) ?
RTCFG_MAIN_CLIENT_READY : RTCFG_MAIN_CLIENT_2);
} else
rtcfg_next_main_state(ifindex, RTCFG_MAIN_CLIENT_ALL_FRAMES);
rtcfg_send_ack(ifindex);
}
rtos_res_unlock(&rtcfg_dev->dev_lock);
if (rtskb != NULL)
kfree_rtskb(rtskb);
}
static void rtcfg_client_recv_stage_2_cfg(int ifindex, struct rtskb *rtskb)
{
struct rtcfg_frm_stage_2_cfg *stage_2_cfg;
struct rtcfg_device *rtcfg_dev = &device[ifindex];
size_t data_len;
int ret;
if (rtskb->len < sizeof(struct rtcfg_frm_stage_2_cfg)) {
rtdm_mutex_unlock(&rtcfg_dev->dev_mutex);
RTCFG_DEBUG(1, "RTcfg: received invalid stage_2_cfg frame\n");
kfree_rtskb(rtskb);
return;
}
stage_2_cfg = (struct rtcfg_frm_stage_2_cfg *)rtskb->data;
__rtskb_pull(rtskb, sizeof(struct rtcfg_frm_stage_2_cfg));
if (stage_2_cfg->heartbeat_period) {
ret = rtdm_timer_init(&rtcfg_dev->timer, rtcfg_timer, "rtcfg-timer");
if (ret == 0) {
ret = rtdm_timer_start(&rtcfg_dev->timer,
XN_INFINITE,
(nanosecs_rel_t)ntohs(stage_2_cfg->heartbeat_period) *
1000000,
RTDM_TIMERMODE_RELATIVE);
if (ret < 0)
rtdm_timer_destroy(&rtcfg_dev->timer);
}
if (ret < 0)
/*ERRMSG*/rtdm_printk("RTcfg: unable to create timer task\n");
else
set_bit(FLAG_TIMER_STARTED, &rtcfg_dev->flags);
}
/* add server to station list */
if (rtcfg_add_to_station_list(rtcfg_dev,
rtskb->mac.ethernet->h_source, stage_2_cfg->flags) < 0) {
rtdm_mutex_unlock(&rtcfg_dev->dev_mutex);
RTCFG_DEBUG(1, "RTcfg: unable to process stage_2_cfg frage\n");
kfree_rtskb(rtskb);
return;
}
rtcfg_dev->other_stations = ntohl(stage_2_cfg->stations);
rtcfg_dev->spec.clt.cfg_len = ntohl(stage_2_cfg->cfg_len);
data_len = MIN(rtcfg_dev->spec.clt.cfg_len, rtskb->len);
if (test_bit(RTCFG_FLAG_STAGE_2_DATA, &rtcfg_dev->flags) &&
(data_len > 0)) {
rtcfg_client_queue_frag(ifindex, rtskb, data_len);
rtskb = NULL;
if (rtcfg_dev->stations_found == rtcfg_dev->other_stations)
rtcfg_next_main_state(ifindex, RTCFG_MAIN_CLIENT_ALL_KNOWN);
} else {
if (rtcfg_dev->stations_found == rtcfg_dev->other_stations) {
rtcfg_complete_cmd(ifindex, RTCFG_CMD_ANNOUNCE, 0);
rtcfg_next_main_state(ifindex,
test_bit(RTCFG_FLAG_READY, &rtcfg_dev->flags) ?
RTCFG_MAIN_CLIENT_READY : RTCFG_MAIN_CLIENT_2);
} else
rtcfg_next_main_state(ifindex, RTCFG_MAIN_CLIENT_ALL_FRAMES);
rtcfg_send_ack(ifindex);
}
rtdm_mutex_unlock(&rtcfg_dev->dev_mutex);
if (rtskb != NULL)
kfree_rtskb(rtskb);
}