Ejemplos de PERR_IE_TARGET_RCODE en C++ (Cpp)

Ejemplo n.º 1

Archivo: mesh_hwmp.c Proyecto: mdamt/linux

static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,
				    struct ieee80211_mgmt *mgmt,
				    const u8 *perr_elem)
{
	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
	struct mesh_path *mpath;
	u8 ttl;
	const u8 *ta, *target_addr;
	u32 target_sn;
	u16 target_rcode;

	ta = mgmt->sa;
	ttl = PERR_IE_TTL(perr_elem);
	if (ttl <= 1) {
		ifmsh->mshstats.dropped_frames_ttl++;
		return;
	}
	ttl--;
	target_addr = PERR_IE_TARGET_ADDR(perr_elem);
	target_sn = PERR_IE_TARGET_SN(perr_elem);
	target_rcode = PERR_IE_TARGET_RCODE(perr_elem);

	rcu_read_lock();
	mpath = mesh_path_lookup(sdata, target_addr);
	if (mpath) {
		struct sta_info *sta;

		spin_lock_bh(&mpath->state_lock);
		sta = next_hop_deref_protected(mpath);
		if (mpath->flags & MESH_PATH_ACTIVE &&
		    ether_addr_equal(ta, sta->sta.addr) &&
		    !(mpath->flags & MESH_PATH_FIXED) &&
		    (!(mpath->flags & MESH_PATH_SN_VALID) ||
		    SN_GT(target_sn, mpath->sn)  || target_sn == 0)) {
			mpath->flags &= ~MESH_PATH_ACTIVE;
			if (target_sn != 0)
				mpath->sn = target_sn;
			else
				mpath->sn += 1;
			spin_unlock_bh(&mpath->state_lock);
			if (!ifmsh->mshcfg.dot11MeshForwarding)
				goto endperr;
			mesh_path_error_tx(sdata, ttl, target_addr,
					   target_sn, target_rcode,
					   broadcast_addr);
		} else
			spin_unlock_bh(&mpath->state_lock);
	}
endperr:
	rcu_read_unlock();
}

Ejemplo n.º 2

Archivo: mesh_hwmp.c Proyecto: 303750856/linux-3.1

static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,
			     struct ieee80211_mgmt *mgmt, u8 *perr_elem)
{
	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
	struct mesh_path *mpath;
	u8 ttl;
	u8 *ta, *target_addr;
	u32 target_sn;
	u16 target_rcode;

	ta = mgmt->sa;
	ttl = PERR_IE_TTL(perr_elem);
	if (ttl <= 1) {
		ifmsh->mshstats.dropped_frames_ttl++;
		return;
	}
	ttl--;
	target_addr = PERR_IE_TARGET_ADDR(perr_elem);
	target_sn = PERR_IE_TARGET_SN(perr_elem);
	target_rcode = PERR_IE_TARGET_RCODE(perr_elem);

	rcu_read_lock();
	mpath = mesh_path_lookup(target_addr, sdata);
	if (mpath) {
		spin_lock_bh(&mpath->state_lock);
		if (mpath->flags & MESH_PATH_ACTIVE &&
		    memcmp(ta, next_hop_deref_protected(mpath)->sta.addr,
							ETH_ALEN) == 0 &&
		    (!(mpath->flags & MESH_PATH_SN_VALID) ||
		    SN_GT(target_sn, mpath->sn))) {
			mpath->flags &= ~MESH_PATH_ACTIVE;
			mpath->sn = target_sn;
			spin_unlock_bh(&mpath->state_lock);
			mesh_path_error_tx(ttl, target_addr, cpu_to_le32(target_sn),
					   cpu_to_le16(target_rcode),
					   broadcast_addr, sdata);
		} else
			spin_unlock_bh(&mpath->state_lock);
	}
	rcu_read_unlock();
}