C++ (Cpp) hwmp_preq_frame_process Examples

Example #1

File: mesh_hwmp.c Project: Eijk/tlwn722n-linux-install

void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
			    struct ieee80211_mgmt *mgmt,
			    size_t len)
{
	struct ieee802_11_elems elems;
	size_t baselen;
	u32 last_hop_metric;
	struct sta_info *sta;

	/* need action_code */
	if (len < IEEE80211_MIN_ACTION_SIZE + 1)
		return;

	rcu_read_lock();
	sta = sta_info_get(sdata, mgmt->sa);
	if (!sta || sta->plink_state != NL80211_PLINK_ESTAB) {
		rcu_read_unlock();
		return;
	}
	rcu_read_unlock();

	baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
	ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
			len - baselen, &elems);

	if (elems.preq) {
		if (elems.preq_len != 37)
			/* Right now we support just 1 destination and no AE */
			return;
		last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.preq,
						      MPATH_PREQ);
		if (last_hop_metric)
			hwmp_preq_frame_process(sdata, mgmt, elems.preq,
						last_hop_metric);
	}
	if (elems.prep) {
		if (elems.prep_len != 31)
			/* Right now we support no AE */
			return;
		last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.prep,
						      MPATH_PREP);
		if (last_hop_metric)
			hwmp_prep_frame_process(sdata, mgmt, elems.prep,
						last_hop_metric);
	}
	if (elems.perr) {
		if (elems.perr_len != 15)
			/* Right now we support only one destination per PERR */
			return;
		hwmp_perr_frame_process(sdata, mgmt, elems.perr);
	}
	if (elems.rann)
		hwmp_rann_frame_process(sdata, mgmt, elems.rann);
}

Example #2

void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
			    struct ieee80211_mgmt *mgmt,
			    size_t len)
{
	struct ieee802_11_elems elems;
	size_t baselen;
	u32 last_hop_metric;

	/* need action_code */
	if (len < IEEE80211_MIN_ACTION_SIZE + 1)
		return;

	baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
	ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
			len - baselen, &elems);

	switch (mgmt->u.action.u.mesh_action.action_code) {
	case MPATH_PREQ:
		if (!elems.preq || elems.preq_len != 37)
			/* Right now we support just 1 destination and no AE */
			return;
		last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.preq);
		if (!last_hop_metric)
			return;
		hwmp_preq_frame_process(sdata, mgmt, elems.preq, last_hop_metric);
		break;
	case MPATH_PREP:
		if (!elems.prep || elems.prep_len != 31)
			/* Right now we support no AE */
			return;
		last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.prep);
		if (!last_hop_metric)
			return;
		hwmp_prep_frame_process(sdata, mgmt, elems.prep, last_hop_metric);
		break;
	case MPATH_PERR:
		if (!elems.perr || elems.perr_len != 12)
			/* Right now we support only one destination per PERR */
			return;
		hwmp_perr_frame_process(sdata, mgmt, elems.perr);
	default:
		return;
	}

}

Example #3

File: mesh_hwmp.c Project: x56981973/exp-platform

void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
			    struct ieee80211_mgmt *mgmt,
			    size_t len)
{
	struct ieee802_11_elems elems;
	size_t baselen;
	u8 *orig_addr;//ymj
	u32 last_hop_metric;
	struct sta_info *sta;

	/* need action_code */
	if (len < IEEE80211_MIN_ACTION_SIZE + 1)
		return;

	rcu_read_lock();
	sta = sta_info_get(sdata, mgmt->sa);
	if (!sta || sta->plink_state != NL80211_PLINK_ESTAB) {
		rcu_read_unlock();
		return;
	}
	rcu_read_unlock();

	baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
	ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
			len - baselen, &elems);

	if (elems.preq) {
  		if (elems.preq_len != 37)//ymj
  			/* Right now we support just 1 destination and no AE */
  			return;
 
 		orig_addr=PREQ_IE_ORIG_ADDR(elems.preq);
         if(/*blank*/)//调用mesh_flood_detect函数，判断是否是SUPPRESSED的节点
 		{
  			last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.preq,
  						      MPATH_PREQ);
  			if (last_hop_metric)
  				hwmp_preq_frame_process(sdata, mgmt, elems.preq,
  							last_hop_metric);
 		}else{
 			//to be modified
			//是SUPPRESSED节点，在debug信息中提示该节点MAC
 		}
  	}