/* Caller must hold RTNL lock. */
static int dp_fill_ifinfo(struct sk_buff *skb,
const struct vport *port,
int event, unsigned int flags)
{
struct datapath *dp = port->dp;
struct ifinfomsg *hdr;
struct nlmsghdr *nlh;
if (!port->ops->get_ifindex)
return -ENODEV;
nlh = nlmsg_put(skb, 0, 0, event, sizeof(*hdr), flags);
if (nlh == NULL)
return -EMSGSIZE;
hdr = nlmsg_data(nlh);
hdr->ifi_family = AF_BRIDGE;
hdr->__ifi_pad = 0;
hdr->ifi_type = ARPHRD_ETHER;
hdr->ifi_index = port->ops->get_ifindex(port);
hdr->ifi_flags = port->ops->get_dev_flags(port);
hdr->ifi_change = 0;
NLA_PUT_STRING(skb, IFLA_IFNAME, port->ops->get_name(port));
NLA_PUT_U32(skb, IFLA_MASTER, get_dpifindex(dp));
NLA_PUT_U32(skb, IFLA_MTU, port->ops->get_mtu(port));
#ifdef IFLA_OPERSTATE
NLA_PUT_U8(skb, IFLA_OPERSTATE,
port->ops->is_running(port)
? port->ops->get_operstate(port)
: IF_OPER_DOWN);
#endif
NLA_PUT(skb, IFLA_ADDRESS, ETH_ALEN, port->ops->get_addr(port));
return nlmsg_end(skb, nlh);
nla_put_failure:
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
}
int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
const struct dp_upcall_info *upcall_info)
{
struct dp_stats_percpu *stats;
int dp_ifindex;
int err;
if (upcall_info->pid == 0) {
err = -ENOTCONN;
goto err;
}
dp_ifindex = get_dpifindex(dp);
if (!dp_ifindex) {
err = -ENODEV;
goto err;
}
forward_ip_summed(skb, true);
if (!skb_is_gso(skb))
err = queue_userspace_packet(dp_ifindex, skb, upcall_info);
else
err = queue_gso_packets(dp_ifindex, skb, upcall_info);
if (err)
goto err;
return 0;
err:
stats = per_cpu_ptr(dp->stats_percpu, smp_processor_id());
u64_stats_update_begin(&stats->sync);
stats->n_lost++;
u64_stats_update_end(&stats->sync);
return err;
}
int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
const struct dp_upcall_info *upcall_info)
{
struct dp_stats_percpu *stats;
int dp_ifindex;
int err;
if (upcall_info->portid == 0) {
err = -ENOTCONN;
goto err;
}
dp_ifindex = get_dpifindex(dp);
if (!dp_ifindex) {
err = -ENODEV;
goto err;
}
if (!skb_is_gso(skb))
err = queue_userspace_packet(ovs_dp_get_net(dp), dp_ifindex, skb, upcall_info);
else
err = queue_gso_packets(ovs_dp_get_net(dp), dp_ifindex, skb, upcall_info);
if (err)
goto err;
return 0;
err:
stats = this_cpu_ptr(dp->stats_percpu);
u64_stats_update_begin(&stats->sync);
stats->n_lost++;
u64_stats_update_end(&stats->sync);
return err;
}
