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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>
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Jiri Pirko authored and David S. Miller committed Dec 3, 2014
1 parent 93859b1 commit f6f6424
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Showing 10 changed files with 70 additions and 60 deletions.
2 changes: 1 addition & 1 deletion drivers/net/ethernet/intel/i40e/i40e_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7536,7 +7536,7 @@ static int i40e_get_phys_port_id(struct net_device *netdev,
*/
static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr,
const unsigned char *addr, u16 vid,
u16 flags)
{
struct i40e_netdev_priv *np = netdev_priv(dev);
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4 changes: 2 additions & 2 deletions drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7708,7 +7708,7 @@ static int ixgbe_set_features(struct net_device *netdev,

static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr,
const unsigned char *addr, u16 vid,
u16 flags)
{
/* guarantee we can provide a unique filter for the unicast address */
Expand All @@ -7717,7 +7717,7 @@ static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
return -ENOMEM;
}

return ndo_dflt_fdb_add(ndm, tb, dev, addr, flags);
return ndo_dflt_fdb_add(ndm, tb, dev, addr, vid, flags);
}

static int ixgbe_ndo_bridge_setlink(struct net_device *dev,
Expand Down
9 changes: 5 additions & 4 deletions drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -376,13 +376,14 @@ static int qlcnic_set_mac(struct net_device *netdev, void *p)
}

static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *netdev, const unsigned char *addr)
struct net_device *netdev,
const unsigned char *addr, u16 vid)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err = -EOPNOTSUPP;

if (!adapter->fdb_mac_learn)
return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);

if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
qlcnic_sriov_check(adapter)) {
Expand All @@ -401,13 +402,13 @@ static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],

static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *netdev,
const unsigned char *addr, u16 flags)
const unsigned char *addr, u16 vid, u16 flags)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err = 0;

if (!adapter->fdb_mac_learn)
return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);

if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
!qlcnic_sriov_check(adapter)) {
Expand Down
4 changes: 2 additions & 2 deletions drivers/net/macvlan.c
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Original file line number Diff line number Diff line change
Expand Up @@ -873,7 +873,7 @@ static int macvlan_vlan_rx_kill_vid(struct net_device *dev,

static int macvlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr,
const unsigned char *addr, u16 vid,
u16 flags)
{
struct macvlan_dev *vlan = netdev_priv(dev);
Expand All @@ -898,7 +898,7 @@ static int macvlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],

static int macvlan_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr)
const unsigned char *addr, u16 vid)
{
struct macvlan_dev *vlan = netdev_priv(dev);
int err = -EINVAL;
Expand Down
4 changes: 2 additions & 2 deletions drivers/net/vxlan.c
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Original file line number Diff line number Diff line change
Expand Up @@ -849,7 +849,7 @@ static int vxlan_fdb_parse(struct nlattr *tb[], struct vxlan_dev *vxlan,
/* 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)
const unsigned char *addr, u16 vid, u16 flags)
{
struct vxlan_dev *vxlan = netdev_priv(dev);
/* struct net *net = dev_net(vxlan->dev); */
Expand Down Expand Up @@ -885,7 +885,7 @@ static int vxlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
/* Delete entry (via netlink) */
static int vxlan_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr)
const unsigned char *addr, u16 vid)
{
struct vxlan_dev *vxlan = netdev_priv(dev);
struct vxlan_fdb *f;
Expand Down
8 changes: 5 additions & 3 deletions include/linux/netdevice.h
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Original file line number Diff line number Diff line change
Expand Up @@ -951,11 +951,11 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
*
* int (*ndo_fdb_add)(struct ndmsg *ndm, struct nlattr *tb[],
* struct net_device *dev,
* const unsigned char *addr, u16 flags)
* const unsigned char *addr, u16 vid, u16 flags)
* Adds an FDB entry to dev for addr.
* int (*ndo_fdb_del)(struct ndmsg *ndm, struct nlattr *tb[],
* struct net_device *dev,
* const unsigned char *addr)
* const unsigned char *addr, u16 vid)
* Deletes the FDB entry from dev coresponding to addr.
* int (*ndo_fdb_dump)(struct sk_buff *skb, struct netlink_callback *cb,
* struct net_device *dev, struct net_device *filter_dev,
Expand Down Expand Up @@ -1128,11 +1128,13 @@ struct net_device_ops {
struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr,
u16 vid,
u16 flags);
int (*ndo_fdb_del)(struct ndmsg *ndm,
struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr);
const unsigned char *addr,
u16 vid);
int (*ndo_fdb_dump)(struct sk_buff *skb,
struct netlink_callback *cb,
struct net_device *dev,
Expand Down
6 changes: 4 additions & 2 deletions include/linux/rtnetlink.h
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Original file line number Diff line number Diff line change
Expand Up @@ -94,11 +94,13 @@ extern int ndo_dflt_fdb_add(struct ndmsg *ndm,
struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr,
u16 flags);
u16 vid,
u16 flags);
extern 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);

extern int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct net_device *dev, u16 mode);
Expand Down
39 changes: 4 additions & 35 deletions net/bridge/br_fdb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -805,33 +805,17 @@ static int __br_fdb_add(struct ndmsg *ndm, struct net_bridge_port *p,
/* Add new permanent fdb entry with RTM_NEWNEIGH */
int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr, u16 nlh_flags)
const unsigned char *addr, u16 vid, u16 nlh_flags)
{
struct net_bridge_port *p;
int err = 0;
struct net_port_vlans *pv;
unsigned short vid = VLAN_N_VID;

if (!(ndm->ndm_state & (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE))) {
pr_info("bridge: RTM_NEWNEIGH with invalid state %#x\n", ndm->ndm_state);
return -EINVAL;
}

if (tb[NDA_VLAN]) {
if (nla_len(tb[NDA_VLAN]) != sizeof(unsigned short)) {
pr_info("bridge: RTM_NEWNEIGH with invalid vlan\n");
return -EINVAL;
}

vid = nla_get_u16(tb[NDA_VLAN]);

if (!vid || vid >= VLAN_VID_MASK) {
pr_info("bridge: RTM_NEWNEIGH with invalid vlan id %d\n",
vid);
return -EINVAL;
}
}

if (is_zero_ether_addr(addr)) {
pr_info("bridge: RTM_NEWNEIGH with invalid ether address\n");
return -EINVAL;
Expand All @@ -845,7 +829,7 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
}

pv = nbp_get_vlan_info(p);
if (vid != VLAN_N_VID) {
if (vid) {
if (!pv || !test_bit(vid, pv->vlan_bitmap)) {
pr_info("bridge: RTM_NEWNEIGH with unconfigured "
"vlan %d on port %s\n", vid, dev->name);
Expand Down Expand Up @@ -903,27 +887,12 @@ static int __br_fdb_delete(struct net_bridge_port *p,
/* Remove neighbor entry with RTM_DELNEIGH */
int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr)
const unsigned char *addr, u16 vid)
{
struct net_bridge_port *p;
int err;
struct net_port_vlans *pv;
unsigned short vid = VLAN_N_VID;

if (tb[NDA_VLAN]) {
if (nla_len(tb[NDA_VLAN]) != sizeof(unsigned short)) {
pr_info("bridge: RTM_NEWNEIGH with invalid vlan\n");
return -EINVAL;
}

vid = nla_get_u16(tb[NDA_VLAN]);

if (!vid || vid >= VLAN_VID_MASK) {
pr_info("bridge: RTM_NEWNEIGH with invalid vlan id %d\n",
vid);
return -EINVAL;
}
}
p = br_port_get_rtnl(dev);
if (p == NULL) {
pr_info("bridge: RTM_DELNEIGH %s not a bridge port\n",
Expand All @@ -932,7 +901,7 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
}

pv = nbp_get_vlan_info(p);
if (vid != VLAN_N_VID) {
if (vid) {
if (!pv || !test_bit(vid, pv->vlan_bitmap)) {
pr_info("bridge: RTM_DELNEIGH with unconfigured "
"vlan %d on port %s\n", vid, dev->name);
Expand Down
4 changes: 2 additions & 2 deletions net/bridge/br_private.h
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Original file line number Diff line number Diff line change
Expand Up @@ -404,9 +404,9 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
const unsigned char *addr, u16 vid, bool added_by_user);

int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev, const unsigned char *addr);
struct net_device *dev, const unsigned char *addr, u16 vid);
int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
const unsigned char *addr, u16 nlh_flags);
const unsigned char *addr, u16 vid, u16 nlh_flags);
int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
struct net_device *dev, struct net_device *fdev, int idx);
int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p);
Expand Down
50 changes: 43 additions & 7 deletions net/core/rtnetlink.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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>

Expand Down Expand Up @@ -2312,7 +2313,7 @@ static void rtnl_fdb_notify(struct net_device *dev, u8 *addr, int type)
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;
Expand All @@ -2338,13 +2339,36 @@ 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);
struct ndmsg *ndm;
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);
Expand All @@ -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 */
Expand All @@ -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
Expand All @@ -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) {
Expand All @@ -2409,7 +2439,7 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
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;

Expand Down Expand Up @@ -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;
Expand Down Expand Up @@ -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 */
Expand All @@ -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;
Expand All @@ -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);
Expand Down

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