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Commit f0b074be authored by Mike Rapoport's avatar Mike Rapoport Committed by Stephen Hemminger
Browse files

vxlan: introduce vxlan_fdb_parse 



which will be reused by vxlan_fdb_delete

Signed-off-by: default avatarMike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: default avatarStephen Hemminger <stephen@networkplumber.org>
parent a5e7c10a

drivers/net/vxlan.c

+50 −31
Original line number Diff line number Diff line
@@ -518,58 +518,77 @@ static void vxlan_fdb_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f) 
	call_rcu(&f->rcu, vxlan_fdb_free);

}



/* Add static entry (via netlink) */

static int vxlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],

			 struct net_device *dev,

			 const unsigned char *addr, u16 flags)

static int vxlan_fdb_parse(struct nlattr *tb[], struct vxlan_dev *vxlan,

			   __be32 *ip, __be16 *port, u32 *vni, u32 *ifindex)

{

	struct vxlan_dev *vxlan = netdev_priv(dev);

	struct net *net = dev_net(vxlan->dev);

	__be32 ip;

	__be16 port;

	u32 vni, ifindex;

	int err;



	if (!(ndm->ndm_state & (NUD_PERMANENT|NUD_REACHABLE))) {

		pr_info("RTM_NEWNEIGH with invalid state %#x\n",

			ndm->ndm_state);

		return -EINVAL;

	}



	if (tb[NDA_DST] == NULL)

		return -EINVAL;



	if (tb[NDA_DST]) {

		if (nla_len(tb[NDA_DST]) != sizeof(__be32))

			return -EAFNOSUPPORT;



	ip = nla_get_be32(tb[NDA_DST]);

		*ip = nla_get_be32(tb[NDA_DST]);

	} else {

		*ip = htonl(INADDR_ANY);

	}



	if (tb[NDA_PORT]) {

		if (nla_len(tb[NDA_PORT]) != sizeof(__be16))

			return -EINVAL;

		port = nla_get_be16(tb[NDA_PORT]);

	} else

		port = vxlan->dst_port;

		*port = nla_get_be16(tb[NDA_PORT]);

	} else {

		*port = vxlan->dst_port;

	}



	if (tb[NDA_VNI]) {

		if (nla_len(tb[NDA_VNI]) != sizeof(u32))

			return -EINVAL;

		vni = nla_get_u32(tb[NDA_VNI]);

	} else

		vni = vxlan->default_dst.remote_vni;

		*vni = nla_get_u32(tb[NDA_VNI]);

	} else {

		*vni = vxlan->default_dst.remote_vni;

	}



	if (tb[NDA_IFINDEX]) {

		struct net_device *tdev;



		if (nla_len(tb[NDA_IFINDEX]) != sizeof(u32))

			return -EINVAL;

		ifindex = nla_get_u32(tb[NDA_IFINDEX]);

		tdev = dev_get_by_index(net, ifindex);

		*ifindex = nla_get_u32(tb[NDA_IFINDEX]);

		tdev = dev_get_by_index(net, *ifindex);

		if (!tdev)

			return -EADDRNOTAVAIL;

		dev_put(tdev);

	} else

		ifindex = 0;

	} else {

		*ifindex = 0;

	}



	return 0;

}



/* Add static entry (via netlink) */

static int vxlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],

			 struct net_device *dev,

			 const unsigned char *addr, u16 flags)

{

	struct vxlan_dev *vxlan = netdev_priv(dev);

	/* struct net *net = dev_net(vxlan->dev); */

	__be32 ip;

	__be16 port;

	u32 vni, ifindex;

	int err;



	if (!(ndm->ndm_state & (NUD_PERMANENT|NUD_REACHABLE))) {

		pr_info("RTM_NEWNEIGH with invalid state %#x\n",

			ndm->ndm_state);

		return -EINVAL;

	}



	if (tb[NDA_DST] == NULL)

		return -EINVAL;



	err = vxlan_fdb_parse(tb, vxlan, &ip, &port, &vni, &ifindex);

	if (err)

		return err;



	spin_lock_bh(&vxlan->hash_lock);

	err = vxlan_fdb_create(vxlan, addr, ip, ndm->ndm_state, flags,