net/ipv4/ipmr.c

76 /* Big lock, protecting vif table, mrt cache and mroute socket state.
82 static struct net_device *vif_dev_read(const struct vif_device *vif)
84 	return rcu_dereference(vif->dev);
625 					 struct vif_device *vif,
630 				     vif, vif_dev, vif_index, tb_id,
820 	/* Is vif busy ? */
1277 /* Close the multicast socket, and clear the vif tables etc */
1286 	/* Shut down all active vif entries */
1363 	struct vifctl vif;
1425 		if (optlen != sizeof(vif)) {
1429 		if (copy_from_sockptr(&vif, optval, sizeof(vif))) {
1433 		if (vif.vifc_vifi >= MAXVIFS) {
1438 			ret = vif_add(net, mrt, &vif,
1441 			ret = vif_delete(mrt, vif.vifc_vifi, 0, NULL);
1621 	struct vif_device *vif;
1639 		vif = &mrt->vif_table[vr->vifi];
1641 			vr->icount = READ_ONCE(vif->pkt_in);
1642 			vr->ocount = READ_ONCE(vif->pkt_out);
1643 			vr->ibytes = READ_ONCE(vif->bytes_in);
1644 			vr->obytes = READ_ONCE(vif->bytes_out);
1691 	struct vif_device *vif;
1708 		vif = &mrt->vif_table[vr.vifi];
1710 			vr.icount = READ_ONCE(vif->pkt_in);
1711 			vr.ocount = READ_ONCE(vif->pkt_out);
1712 			vr.ibytes = READ_ONCE(vif->bytes_in);
1713 			vr.obytes = READ_ONCE(vif->bytes_out);
1843 	struct vif_device *vif = &mrt->vif_table[vifi];
1850 	vif_dev = vif_dev_read(vif);
1854 	if (vif->flags & VIFF_REGISTER) {
1855 		WRITE_ONCE(vif->pkt_out, vif->pkt_out + 1);
1856 		WRITE_ONCE(vif->bytes_out, vif->bytes_out + skb->len);
1866 	if (vif->flags & VIFF_TUNNEL) {
1868 					   vif->remote, vif->local,
1871 					   RT_TOS(iph->tos), vif->link);
1879 					   RT_TOS(iph->tos), vif->link);
1903 	WRITE_ONCE(vif->pkt_out, vif->pkt_out + 1);
1904 	WRITE_ONCE(vif->bytes_out, vif->bytes_out + skb->len);
1913 	if (vif->flags & VIFF_TUNNEL) {
1914 		ip_encap(net, skb, vif->local, vif->remote);
1961 	int vif, ct;
1963 	vif = c->_c.mfc_parent;
1974 		cache_proxy = mr_mfc_find_any_parent(mrt, vif);
1981 	if (rcu_access_pointer(mrt->vif_table[vif].dev) != dev) {
2020 	WRITE_ONCE(mrt->vif_table[vif].pkt_in,
2021 		   mrt->vif_table[vif].pkt_in + 1);
2022 	WRITE_ONCE(mrt->vif_table[vif].bytes_in,
2023 		   mrt->vif_table[vif].bytes_in + skb->len);
2113 	 * get the proper interface that does have a vif associated with it.
2160 		int vif = ipmr_find_vif(mrt, dev);
2162 		if (vif >= 0)
2164 						    vif);
2169 		int vif;
2179 		vif = ipmr_find_vif(mrt, dev);
2180 		if (vif >= 0)
2181 			return ipmr_cache_unresolved(mrt, vif, skb, dev);
2271 		int vif = ipmr_find_vif(mrt, skb->dev);
2273 		if (vif >= 0)
2274 			cache = ipmr_cache_find_any(mrt, daddr, vif);
2280 		int vif = -1;
2284 			vif = ipmr_find_vif(mrt, dev);
2285 		if (vif < 0) {
2304 		err = ipmr_cache_unresolved(mrt, vif, skb2, dev);
2773 	struct vif_device *vif;
2775 	vif = &mrt->vif_table[vifid];
2776 	vif_dev = rtnl_dereference(vif->dev);
2787 	    nla_put_u16(skb, IPMRA_VIFA_FLAGS, vif->flags) ||
2788 	    nla_put_u64_64bit(skb, IPMRA_VIFA_BYTES_IN, vif->bytes_in,
2790 	    nla_put_u64_64bit(skb, IPMRA_VIFA_BYTES_OUT, vif->bytes_out,
2792 	    nla_put_u64_64bit(skb, IPMRA_VIFA_PACKETS_IN, vif->pkt_in,
2794 	    nla_put_u64_64bit(skb, IPMRA_VIFA_PACKETS_OUT, vif->pkt_out,
2796 	    nla_put_be32(skb, IPMRA_VIFA_LOCAL_ADDR, vif->local) ||
2797 	    nla_put_be32(skb, IPMRA_VIFA_REMOTE_ADDR, vif->remote)) {
2948 		const struct vif_device *vif = v;
2952 		vif_dev = vif_dev_read(vif);
2956 			   vif - mrt->vif_table,
2957 			   name, vif->bytes_in, vif->pkt_in,
2958 			   vif->bytes_out, vif->pkt_out,
2959 			   vif->flags, vif->local, vif->remote);