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net: make vid as a parameter for ndo_fdb_add/ndo_fdb_del

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Do the work of parsing NDA_VLAN directly in rtnetlink code, pass simple
u16 vid to drivers from there.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2014-11-28 14:34:15 +01:00
committed by David S. Miller
parent 93859b13fa
commit f6f6424ba7
10 changed files with 70 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
net/core/rtnetlink.c
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@@ -36,6 +36,7 @@
#include <linux/mutex.h>
#include <linux/if_addr.h>
#include <linux/if_bridge.h>
#include <linux/if_vlan.h>
#include <linux/pci.h>
#include <linux/etherdevice.h>
@@ -2312,7 +2313,7 @@ errout:
int ndo_dflt_fdb_add(struct ndmsg *ndm,
struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr,
const unsigned char *addr, u16 vid,
u16 flags)
{
int err = -EINVAL;
@@ -2338,6 +2339,28 @@ int ndo_dflt_fdb_add(struct ndmsg *ndm,
}
EXPORT_SYMBOL(ndo_dflt_fdb_add);
static int fdb_vid_parse(struct nlattr *vlan_attr, u16 *p_vid)
{
u16 vid = 0;
if (vlan_attr) {
if (nla_len(vlan_attr) != sizeof(u16)) {
pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid vlan\n");
return -EINVAL;
}
vid = nla_get_u16(vlan_attr);
if (!vid || vid >= VLAN_VID_MASK) {
pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid vlan id %d\n",
vid);
return -EINVAL;
}
}
*p_vid = vid;
return 0;
}
static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct net *net = sock_net(skb->sk);
@@ -2345,6 +2368,7 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
struct nlattr *tb[NDA_MAX+1];
struct net_device *dev;
u8 *addr;
u16 vid;
int err;
err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
@@ -2370,6 +2394,10 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
addr = nla_data(tb[NDA_LLADDR]);
err = fdb_vid_parse(tb[NDA_VLAN], &vid);
if (err)
return err;
err = -EOPNOTSUPP;
/* Support fdb on master device the net/bridge default case */
@@ -2378,7 +2406,8 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
struct net_device *br_dev = netdev_master_upper_dev_get(dev);
const struct net_device_ops *ops = br_dev->netdev_ops;
err = ops->ndo_fdb_add(ndm, tb, dev, addr, nlh->nlmsg_flags);
err = ops->ndo_fdb_add(ndm, tb, dev, addr, vid,
nlh->nlmsg_flags);
if (err)
goto out;
else
@@ -2389,9 +2418,10 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
if ((ndm->ndm_flags & NTF_SELF)) {
if (dev->netdev_ops->ndo_fdb_add)
err = dev->netdev_ops->ndo_fdb_add(ndm, tb, dev, addr,
vid,
nlh->nlmsg_flags);
else
err = ndo_dflt_fdb_add(ndm, tb, dev, addr,
err = ndo_dflt_fdb_add(ndm, tb, dev, addr, vid,
nlh->nlmsg_flags);
if (!err) {
@@ -2409,7 +2439,7 @@ out:
int ndo_dflt_fdb_del(struct ndmsg *ndm,
struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr)
const unsigned char *addr, u16 vid)
{
int err = -EINVAL;
@@ -2438,6 +2468,7 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
struct net_device *dev;
int err = -EINVAL;
__u8 *addr;
u16 vid;
if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;
@@ -2465,6 +2496,10 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
addr = nla_data(tb[NDA_LLADDR]);
err = fdb_vid_parse(tb[NDA_VLAN], &vid);
if (err)
return err;
err = -EOPNOTSUPP;
/* Support fdb on master device the net/bridge default case */
@@ -2474,7 +2509,7 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
const struct net_device_ops *ops = br_dev->netdev_ops;
if (ops->ndo_fdb_del)
err = ops->ndo_fdb_del(ndm, tb, dev, addr);
err = ops->ndo_fdb_del(ndm, tb, dev, addr, vid);
if (err)
goto out;
@@ -2485,9 +2520,10 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
/* Embedded bridge, macvlan, and any other device support */
if (ndm->ndm_flags & NTF_SELF) {
if (dev->netdev_ops->ndo_fdb_del)
err = dev->netdev_ops->ndo_fdb_del(ndm, tb, dev, addr);
err = dev->netdev_ops->ndo_fdb_del(ndm, tb, dev, addr,
vid);
else
err = ndo_dflt_fdb_del(ndm, tb, dev, addr);
err = ndo_dflt_fdb_del(ndm, tb, dev, addr, vid);
if (!err) {
rtnl_fdb_notify(dev, addr, RTM_DELNEIGH);