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vxlan: introduce vxlan_fdb_parse

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which will be reused by vxlan_fdb_delete

Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Mike Rapoport 2013-06-25 16:01:53 +03:00 committed by Stephen Hemminger
parent a5e7c10a7e
commit f0b074be7b
1 changed files with 51 additions and 32 deletions
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83
drivers/net/vxlan.c
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@ -518,13 +518,60 @@ static void vxlan_fdb_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f)
call_rcu(&f->rcu, vxlan_fdb_free);
}
static int vxlan_fdb_parse(struct nlattr *tb[], struct vxlan_dev *vxlan,
__be32 *ip, __be16 *port, u32 *vni, u32 *ifindex)
{
struct net *net = dev_net(vxlan->dev);
if (tb[NDA_DST]) {
if (nla_len(tb[NDA_DST]) != sizeof(__be32))
return -EAFNOSUPPORT;
*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;
}
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;
}
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);
if (!tdev)
return -EADDRNOTAVAIL;
dev_put(tdev);
} 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);
/* struct net *net = dev_net(vxlan->dev); */
__be32 ip;
__be16 port;
u32 vni, ifindex;
@ -539,37 +586,9 @@ static int vxlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
if (tb[NDA_DST] == NULL)
return -EINVAL;
if (nla_len(tb[NDA_DST]) != sizeof(__be32))
return -EAFNOSUPPORT;
ip = nla_get_be32(tb[NDA_DST]);
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;
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;
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);
if (!tdev)
return -EADDRNOTAVAIL;
dev_put(tdev);
} else
ifindex = 0;
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,