diff options
Diffstat (limited to 'net/core/rtnetlink.c')
-rw-r--r-- | net/core/rtnetlink.c | 127 |
1 files changed, 111 insertions, 16 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 4c7d3f6..4568120 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -35,6 +35,7 @@ #include <linux/security.h> #include <linux/mutex.h> #include <linux/if_addr.h> +#include <linux/pci.h> #include <asm/uaccess.h> #include <asm/system.h> @@ -556,6 +557,19 @@ static void set_operstate(struct net_device *dev, unsigned char transition) } } +static unsigned int rtnl_dev_combine_flags(const struct net_device *dev, + const struct ifinfomsg *ifm) +{ + unsigned int flags = ifm->ifi_flags; + + /* bugwards compatibility: ifi_change == 0 is treated as ~0 */ + if (ifm->ifi_change) + flags = (flags & ifm->ifi_change) | + (dev->flags & ~ifm->ifi_change); + + return flags; +} + static void copy_rtnl_link_stats(struct rtnl_link_stats *a, const struct net_device_stats *b) { @@ -588,6 +602,15 @@ static void copy_rtnl_link_stats(struct rtnl_link_stats *a, a->tx_compressed = b->tx_compressed; }; +static inline int rtnl_vfinfo_size(const struct net_device *dev) +{ + if (dev->dev.parent && dev_is_pci(dev->dev.parent)) + return dev_num_vf(dev->dev.parent) * + sizeof(struct ifla_vf_info); + else + return 0; +} + static inline size_t if_nlmsg_size(const struct net_device *dev) { return NLMSG_ALIGN(sizeof(struct ifinfomsg)) @@ -605,6 +628,8 @@ static inline size_t if_nlmsg_size(const struct net_device *dev) + nla_total_size(4) /* IFLA_MASTER */ + nla_total_size(1) /* IFLA_OPERSTATE */ + nla_total_size(1) /* IFLA_LINKMODE */ + + nla_total_size(4) /* IFLA_NUM_VF */ + + nla_total_size(rtnl_vfinfo_size(dev)) /* IFLA_VFINFO */ + rtnl_link_get_size(dev); /* IFLA_LINKINFO */ } @@ -673,6 +698,17 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev, stats = dev_get_stats(dev); copy_rtnl_link_stats(nla_data(attr), stats); + if (dev->netdev_ops->ndo_get_vf_config && dev->dev.parent) { + int i; + struct ifla_vf_info ivi; + + NLA_PUT_U32(skb, IFLA_NUM_VF, dev_num_vf(dev->dev.parent)); + for (i = 0; i < dev_num_vf(dev->dev.parent); i++) { + if (dev->netdev_ops->ndo_get_vf_config(dev, i, &ivi)) + break; + NLA_PUT(skb, IFLA_VFINFO, sizeof(ivi), &ivi); + } + } if (dev->rtnl_link_ops) { if (rtnl_link_fill(skb, dev) < 0) goto nla_put_failure; @@ -733,6 +769,12 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = { [IFLA_LINKINFO] = { .type = NLA_NESTED }, [IFLA_NET_NS_PID] = { .type = NLA_U32 }, [IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 }, + [IFLA_VF_MAC] = { .type = NLA_BINARY, + .len = sizeof(struct ifla_vf_mac) }, + [IFLA_VF_VLAN] = { .type = NLA_BINARY, + .len = sizeof(struct ifla_vf_vlan) }, + [IFLA_VF_TX_RATE] = { .type = NLA_BINARY, + .len = sizeof(struct ifla_vf_tx_rate) }, }; EXPORT_SYMBOL(ifla_policy); @@ -883,13 +925,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, } if (ifm->ifi_flags || ifm->ifi_change) { - unsigned int flags = ifm->ifi_flags; - - /* bugwards compatibility: ifi_change == 0 is treated as ~0 */ - if (ifm->ifi_change) - flags = (flags & ifm->ifi_change) | - (dev->flags & ~ifm->ifi_change); - err = dev_change_flags(dev, flags); + err = dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm)); if (err < 0) goto errout; } @@ -906,6 +942,41 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, write_unlock_bh(&dev_base_lock); } + if (tb[IFLA_VF_MAC]) { + struct ifla_vf_mac *ivm; + ivm = nla_data(tb[IFLA_VF_MAC]); + err = -EOPNOTSUPP; + if (ops->ndo_set_vf_mac) + err = ops->ndo_set_vf_mac(dev, ivm->vf, ivm->mac); + if (err < 0) + goto errout; + modified = 1; + } + + if (tb[IFLA_VF_VLAN]) { + struct ifla_vf_vlan *ivv; + ivv = nla_data(tb[IFLA_VF_VLAN]); + err = -EOPNOTSUPP; + if (ops->ndo_set_vf_vlan) + err = ops->ndo_set_vf_vlan(dev, ivv->vf, + ivv->vlan, + ivv->qos); + if (err < 0) + goto errout; + modified = 1; + } + err = 0; + + if (tb[IFLA_VF_TX_RATE]) { + struct ifla_vf_tx_rate *ivt; + ivt = nla_data(tb[IFLA_VF_TX_RATE]); + err = -EOPNOTSUPP; + if (ops->ndo_set_vf_tx_rate) + err = ops->ndo_set_vf_tx_rate(dev, ivt->vf, ivt->rate); + if (err < 0) + goto errout; + modified = 1; + } err = 0; errout: @@ -997,6 +1068,26 @@ static int rtnl_dellink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) return 0; } +int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm) +{ + unsigned int old_flags; + int err; + + old_flags = dev->flags; + if (ifm && (ifm->ifi_flags || ifm->ifi_change)) { + err = __dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm)); + if (err < 0) + return err; + } + + dev->rtnl_link_state = RTNL_LINK_INITIALIZED; + rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U); + + __dev_notify_flags(dev, old_flags); + return 0; +} +EXPORT_SYMBOL(rtnl_configure_link); + struct net_device *rtnl_create_link(struct net *src_net, struct net *net, char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[]) { @@ -1018,6 +1109,7 @@ struct net_device *rtnl_create_link(struct net *src_net, struct net *net, dev_net_set(dev, net); dev->rtnl_link_ops = ops; + dev->rtnl_link_state = RTNL_LINK_INITIALIZING; dev->real_num_tx_queues = real_num_queues; if (strchr(dev->name, '%')) { @@ -1147,7 +1239,7 @@ replay: if (!(nlh->nlmsg_flags & NLM_F_CREATE)) return -ENODEV; - if (ifm->ifi_index || ifm->ifi_flags || ifm->ifi_change) + if (ifm->ifi_index) return -EOPNOTSUPP; if (tb[IFLA_MAP] || tb[IFLA_MASTER] || tb[IFLA_PROTINFO]) return -EOPNOTSUPP; @@ -1178,9 +1270,15 @@ replay: err = ops->newlink(net, dev, tb, data); else err = register_netdevice(dev); - if (err < 0 && !IS_ERR(dev)) + if (err < 0 && !IS_ERR(dev)) { free_netdev(dev); + goto out; + } + err = rtnl_configure_link(dev, ifm); + if (err < 0) + unregister_netdevice(dev); +out: put_net(dest_net); return err; } @@ -1369,17 +1467,14 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi struct net_device *dev = ptr; switch (event) { - case NETDEV_UNREGISTER: - rtmsg_ifinfo(RTM_DELLINK, dev, ~0U); - break; case NETDEV_UP: case NETDEV_DOWN: - rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING); - break; + case NETDEV_PRE_UP: case NETDEV_POST_INIT: case NETDEV_REGISTER: case NETDEV_CHANGE: case NETDEV_GOING_DOWN: + case NETDEV_UNREGISTER: case NETDEV_UNREGISTER_BATCH: break; default: @@ -1394,7 +1489,7 @@ static struct notifier_block rtnetlink_dev_notifier = { }; -static int rtnetlink_net_init(struct net *net) +static int __net_init rtnetlink_net_init(struct net *net) { struct sock *sk; sk = netlink_kernel_create(net, NETLINK_ROUTE, RTNLGRP_MAX, @@ -1405,7 +1500,7 @@ static int rtnetlink_net_init(struct net *net) return 0; } -static void rtnetlink_net_exit(struct net *net) +static void __net_exit rtnetlink_net_exit(struct net *net) { netlink_kernel_release(net->rtnl); net->rtnl = NULL; |