diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/rtnetlink.c | 50 |
1 files changed, 43 insertions, 7 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index b9b7dfaf202b..1a233c1c8ab4 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -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); |