static int ip6_tnl_init_net(struct net *net)
{
struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
int err;
ip6n->tnls[0] = ip6n->tnls_wc;
ip6n->tnls[1] = ip6n->tnls_r_l;
err = -ENOMEM;
ip6n->fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6tnl0",
ip6_tnl_dev_setup);
if (!ip6n->fb_tnl_dev)
goto err_alloc_dev;
dev_net_set(ip6n->fb_tnl_dev, net);
ip6_fb_tnl_dev_init(ip6n->fb_tnl_dev);
err = register_netdev(ip6n->fb_tnl_dev);
if (err < 0)
goto err_register;
return 0;
err_register:
free_netdev(ip6n->fb_tnl_dev);
err_alloc_dev:
return err;
}
/* Setup and register the loopback device. */
static __net_init int loopback_net_init(struct net *net)
{
struct net_device *dev;
int err;
err = -ENOMEM;
dev = alloc_netdev(0, "lo", loopback_setup);
if (!dev)
goto out;
dev_net_set(dev, net);
err = register_netdev(dev);
if (err)
goto out_free_netdev;
net->loopback_dev = dev;
return 0;
out_free_netdev:
free_netdev(dev);
out:
if (net == &init_net)
panic("loopback: Failed to register netdevice: %d\n", err);
return err;
}
static struct ip_tunnel * ipip6_tunnel_locate(struct net *net,
struct ip_tunnel_parm *parms, int create)
{
__be32 remote = parms->iph.daddr;
__be32 local = parms->iph.saddr;
struct ip_tunnel *t, **tp, *nt;
struct net_device *dev;
char name[IFNAMSIZ];
struct sit_net *sitn = net_generic(net, sit_net_id);
for (tp = __ipip6_bucket(sitn, parms); (t = *tp) != NULL; tp = &t->next) {
if (local == t->parms.iph.saddr &&
remote == t->parms.iph.daddr &&
parms->link == t->parms.link) {
if (create)
return NULL;
else
return t;
}
}
if (!create)
goto failed;
if (parms->name[0])
strlcpy(name, parms->name, IFNAMSIZ);
else
sprintf(name, "sit%%d");
dev = alloc_netdev(sizeof(*t), name, ipip6_tunnel_setup);
if (dev == NULL)
return NULL;
dev_net_set(dev, net);
if (strchr(name, '%')) {
if (dev_alloc_name(dev, name) < 0)
goto failed_free;
}
nt = netdev_priv(dev);
nt->parms = *parms;
ipip6_tunnel_init(dev);
if (parms->i_flags & SIT_ISATAP)
dev->priv_flags |= IFF_ISATAP;
if (register_netdevice(dev) < 0)
goto failed_free;
dev_hold(dev);
ipip6_tunnel_link(sitn, nt);
return nt;
failed_free:
free_netdev(dev);
failed:
return NULL;
}
static struct net_device *ip6mr_reg_vif(struct net *net)
{
struct net_device *dev;
dev = alloc_netdev(0, "pim6reg", reg_vif_setup);
if (dev == NULL)
return NULL;
dev_net_set(dev, net);
if (register_netdevice(dev)) {
free_netdev(dev);
return NULL;
}
dev->iflink = 0;
if (dev_open(dev))
goto failure;
dev_hold(dev);
return dev;
failure:
/* allow the register to be completed before unregistering. */
rtnl_unlock();
rtnl_lock();
unregister_netdevice(dev);
return NULL;
}
static int register_vlan_device(struct net_device *real_dev, u16 vlan_id)
{
struct net_device *new_dev;
struct net *net = dev_net(real_dev);
struct vlan_net *vn = net_generic(net, vlan_net_id);
char name[IFNAMSIZ];
int err;
if (vlan_id >= VLAN_VID_MASK)
return -ERANGE;
err = vlan_check_real_dev(real_dev, vlan_id);
if (err < 0)
return err;
switch (vn->name_type) {
case VLAN_NAME_TYPE_RAW_PLUS_VID:
snprintf(name, IFNAMSIZ, "%s.%.4i", real_dev->name, vlan_id);
break;
case VLAN_NAME_TYPE_PLUS_VID_NO_PAD:
snprintf(name, IFNAMSIZ, "vlan%i", vlan_id);
break;
case VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD:
snprintf(name, IFNAMSIZ, "%s.%i", real_dev->name, vlan_id);
break;
case VLAN_NAME_TYPE_PLUS_VID:
default:
snprintf(name, IFNAMSIZ, "vlan%.4i", vlan_id);
}
new_dev = alloc_netdev(sizeof(struct vlan_dev_priv), name, vlan_setup);
if (new_dev == NULL)
return -ENOBUFS;
dev_net_set(new_dev, net);
new_dev->mtu = real_dev->mtu;
vlan_dev_priv(new_dev)->vlan_id = vlan_id;
vlan_dev_priv(new_dev)->real_dev = real_dev;
vlan_dev_priv(new_dev)->dent = NULL;
vlan_dev_priv(new_dev)->flags = VLAN_FLAG_REORDER_HDR;
new_dev->rtnl_link_ops = &vlan_link_ops;
err = register_vlan_dev(new_dev);
if (err < 0)
goto out_free_newdev;
return 0;
out_free_newdev:
free_netdev(new_dev);
return err;
}
static struct vport *internal_dev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct internal_dev *internal_dev;
int err;
vport = ovs_vport_alloc(0, &ovs_internal_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
vport->dev = alloc_netdev(sizeof(struct internal_dev),
parms->name, NET_NAME_USER, do_setup);
if (!vport->dev) {
err = -ENOMEM;
goto error_free_vport;
}
vport->dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
if (!vport->dev->tstats) {
err = -ENOMEM;
goto error_free_netdev;
}
#ifdef HAVE_IFF_PHONY_HEADROOM
vport->dev->needed_headroom = vport->dp->max_headroom;
#endif
dev_net_set(vport->dev, ovs_dp_get_net(vport->dp));
internal_dev = internal_dev_priv(vport->dev);
internal_dev->vport = vport;
/* Restrict bridge port to current netns. */
if (vport->port_no == OVSP_LOCAL)
vport->dev->features |= NETIF_F_NETNS_LOCAL;
rtnl_lock();
err = register_netdevice(vport->dev);
if (err)
goto error_unlock;
dev_set_promiscuity(vport->dev, 1);
rtnl_unlock();
netif_start_queue(vport->dev);
return vport;
error_unlock:
rtnl_unlock();
free_percpu(vport->dev->tstats);
error_free_netdev:
free_netdev(vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static struct vport *internal_dev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
struct internal_dev *internal_dev;
int err;
vport = ovs_vport_alloc(sizeof(struct netdev_vport),
&ovs_internal_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev = alloc_netdev(sizeof(struct internal_dev),
parms->name, NET_NAME_UNKNOWN,
do_setup);
if (!netdev_vport->dev) {
err = -ENOMEM;
goto error_free_vport;
}
dev_net_set(netdev_vport->dev, ovs_dp_get_net(vport->dp));
internal_dev = internal_dev_priv(netdev_vport->dev);
internal_dev->vport = vport;
/* Restrict bridge port to current netns. */
if (vport->port_no == OVSP_LOCAL)
netdev_vport->dev->features |= NETIF_F_NETNS_LOCAL;
rtnl_lock();
err = register_netdevice(netdev_vport->dev);
if (err)
goto error_free_netdev;
dev_set_promiscuity(netdev_vport->dev, 1);
rtnl_unlock();
netif_start_queue(netdev_vport->dev);
return vport;
error_free_netdev:
rtnl_unlock();
free_netdev(netdev_vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static int sit_init_net(struct net *net)
{
int err;
struct sit_net *sitn;
if (!(get_exec_env()->features & VE_FEATURE_SIT))
return 0;
err = -ENOMEM;
sitn = kzalloc(sizeof(struct sit_net), GFP_KERNEL);
if (sitn == NULL)
goto err_alloc;
err = net_assign_generic(net, sit_net_id, sitn);
if (err < 0)
goto err_assign;
sitn->tunnels[0] = sitn->tunnels_wc;
sitn->tunnels[1] = sitn->tunnels_l;
sitn->tunnels[2] = sitn->tunnels_r;
sitn->tunnels[3] = sitn->tunnels_r_l;
sitn->fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "sit0",
ipip6_tunnel_setup);
if (!sitn->fb_tunnel_dev) {
err = -ENOMEM;
goto err_alloc_dev;
}
dev_net_set(sitn->fb_tunnel_dev, net);
ipip6_fb_tunnel_init(sitn->fb_tunnel_dev);
if ((err = register_netdev(sitn->fb_tunnel_dev)))
goto err_reg_dev;
return 0;
err_reg_dev:
dev_put(sitn->fb_tunnel_dev);
free_netdev(sitn->fb_tunnel_dev);
err_alloc_dev:
/* nothing */
err_assign:
kfree(sitn);
err_alloc:
return err;
}
static struct ip_tunnel * ipgre_tunnel_locate(struct net *net,
struct ip_tunnel_parm *parms, int create)
{
struct ip_tunnel *t, *nt;
struct net_device *dev;
char name[IFNAMSIZ];
struct ipgre_net *ign = net_generic(net, ipgre_net_id);
t = ipgre_tunnel_find(net, parms, ARPHRD_IPGRE);
if (t || !create)
return t;
if (parms->name[0])
strlcpy(name, parms->name, IFNAMSIZ);
else
sprintf(name, "gre%%d");
dev = alloc_netdev(sizeof(*t), name, ipgre_tunnel_setup);
if (!dev)
return NULL;
dev_net_set(dev, net);
if (strchr(name, '%')) {
if (dev_alloc_name(dev, name) < 0)
goto failed_free;
}
nt = netdev_priv(dev);
nt->parms = *parms;
dev->rtnl_link_ops = &ipgre_link_ops;
dev->mtu = ipgre_tunnel_bind_dev(dev);
if (register_netdevice(dev) < 0)
goto failed_free;
dev_hold(dev);
ipgre_tunnel_link(ign, nt);
return nt;
failed_free:
free_netdev(dev);
return NULL;
}
static struct net_device *__ip_tunnel_create(struct net *net,
const struct rtnl_link_ops *ops,
struct ip_tunnel_parm *parms)
{
int err;
struct ip_tunnel *tunnel;
struct net_device *dev;
char name[IFNAMSIZ];
if (parms->name[0])
strlcpy(name, parms->name, IFNAMSIZ);
else {
if (strlen(ops->kind) > (IFNAMSIZ - 3)) {
err = -E2BIG;
goto failed;
}
strlcpy(name, ops->kind, IFNAMSIZ);
strncat(name, "%d", 2);
}
ASSERT_RTNL();
dev = alloc_netdev(ops->priv_size, name, ops->setup);
if (!dev) {
err = -ENOMEM;
goto failed;
}
dev_net_set(dev, net);
dev->rtnl_link_ops = ops;
tunnel = netdev_priv(dev);
tunnel->parms = *parms;
tunnel->net = net;
err = register_netdevice(dev);
if (err)
goto failed_free;
return dev;
failed_free:
free_netdev(dev);
failed:
return ERR_PTR(err);
}
int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *vif,
const char *name, unsigned char name_assign_type,
enum nl80211_iftype iftype)
{
struct wiphy *wiphy = priv_to_wiphy(mac);
struct net_device *dev;
void *qdev_vif;
int ret;
dev = alloc_netdev_mqs(sizeof(struct qtnf_vif *), name,
name_assign_type, ether_setup, 1, 1);
if (!dev) {
memset(&vif->wdev, 0, sizeof(vif->wdev));
vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
return -ENOMEM;
}
vif->netdev = dev;
dev->netdev_ops = &qtnf_netdev_ops;
dev->needs_free_netdev = true;
dev_net_set(dev, wiphy_net(wiphy));
dev->ieee80211_ptr = &vif->wdev;
dev->ieee80211_ptr->iftype = iftype;
ether_addr_copy(dev->dev_addr, vif->mac_addr);
SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
dev->watchdog_timeo = QTNF_DEF_WDOG_TIMEOUT;
dev->tx_queue_len = 100;
qdev_vif = netdev_priv(dev);
*((void **)qdev_vif) = vif;
SET_NETDEV_DEV(dev, mac->bus->dev);
ret = register_netdevice(dev);
if (ret) {
free_netdev(dev);
vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
}
return ret;
}
static struct net_device *ipmr_reg_vif(struct net *net)
{
struct net_device *dev;
struct in_device *in_dev;
dev = alloc_netdev(0, "pimreg", reg_vif_setup);
if (dev == NULL)
return NULL;
dev_net_set(dev, net);
if (register_netdevice(dev)) {
free_netdev(dev);
return NULL;
}
dev->iflink = 0;
rcu_read_lock();
if ((in_dev = __in_dev_get_rcu(dev)) == NULL) {
rcu_read_unlock();
goto failure;
}
ipv4_devconf_setall(in_dev);
IPV4_DEVCONF(in_dev->cnf, RP_FILTER) = 0;
rcu_read_unlock();
if (dev_open(dev))
goto failure;
dev_hold(dev);
return dev;
failure:
/* allow the register to be completed before unregistering. */
rtnl_unlock();
rtnl_lock();
unregister_netdevice(dev);
return NULL;
}
static int ip6_tnl_init_net(struct net *net)
{
int err;
struct ip6_tnl_net *ip6n;
err = -ENOMEM;
ip6n = kzalloc(sizeof(struct ip6_tnl_net), GFP_KERNEL);
if (ip6n == NULL)
goto err_alloc;
err = net_assign_generic(net, ip6_tnl_net_id, ip6n);
if (err < 0)
goto err_assign;
ip6n->tnls[0] = ip6n->tnls_wc;
ip6n->tnls[1] = ip6n->tnls_r_l;
err = -ENOMEM;
ip6n->fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6tnl0",
ip6_tnl_dev_setup);
if (!ip6n->fb_tnl_dev)
goto err_alloc_dev;
dev_net_set(ip6n->fb_tnl_dev, net);
ip6_fb_tnl_dev_init(ip6n->fb_tnl_dev);
err = register_netdev(ip6n->fb_tnl_dev);
if (err < 0)
goto err_register;
return 0;
err_register:
free_netdev(ip6n->fb_tnl_dev);
err_alloc_dev:
/* nothing */
err_assign:
kfree(ip6n);
err_alloc:
return err;
}
static struct ip6_tnl *ip6_tnl_create(struct net *net, struct ip6_tnl_parm *p)
{
struct net_device *dev;
struct ip6_tnl *t;
char name[IFNAMSIZ];
int err;
struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
if (p->name[0])
strlcpy(name, p->name, IFNAMSIZ);
else
sprintf(name, "ip6tnl%%d");
dev = alloc_netdev(sizeof (*t), name, ip6_tnl_dev_setup);
if (dev == NULL)
goto failed;
dev_net_set(dev, net);
if (strchr(name, '%')) {
if (dev_alloc_name(dev, name) < 0)
goto failed_free;
}
t = netdev_priv(dev);
t->parms = *p;
ip6_tnl_dev_init(dev);
if ((err = register_netdevice(dev)) < 0)
goto failed_free;
dev_hold(dev);
ip6_tnl_link(ip6n, t);
return t;
failed_free:
free_netdev(dev);
failed:
return NULL;
}
/*
* Create a new btn interface unit. Fails if it can't allocate memory
* or if there is already a unit with the requested number.
* unit == -1 means allocate a new number.
*/
static struct btn *
btn_create_interface(struct net *net, enum btn_dev_type dev_type, int *retp)
{
struct btn *btn;
struct btn_net *btn_net;
struct net_device *dev = NULL;
int ret = -ENOMEM;
int unit;
dev = alloc_netdev(sizeof(struct btn), "", btn_setup);
if (!dev)
goto out1;
if (dev_type == BTN_IP_DEV)
{
dev->header_ops = NULL;
dev->flags = IFF_NOARP & (~IFF_BROADCAST & ~IFF_MULTICAST);
}
btn_net = btn_pernet(net);
btn = netdev_priv(dev);
btn->dev = dev;
spin_lock_init(&btn->rlock);
spin_lock_init(&btn->wlock);
btn_init_file(&btn->file);
/*
* drum roll: don't forget to set
* the net device is belong to
*/
dev_net_set(dev, net);
ret = -EEXIST;
mutex_lock(&btn_net->all_btn_mutex);
unit = btn_get_unit(&btn_net->units_idr, btn);
btn->file.index = unit;
sprintf(dev->name, "btn%d", unit);
ret = register_netdev(dev);
if (ret != 0) {
printk(KERN_ERR "BTN: couldn't register device %s (%d)\n",
dev->name, ret);
goto out2;
}
printk(KERN_INFO "BT register net dev name: %s \n", dev->name);
netif_carrier_on(dev);
btn->btn_net = net;
btn->dev_type = dev_type;
atomic_inc(&btn_unit_count);
mutex_unlock(&btn_net->all_btn_mutex);
return btn;
out2:
mutex_unlock(&btn_net->all_btn_mutex);
free_netdev(dev);
out1:
*retp = ret;
return NULL;
}
/* Attach a VLAN device to a mac address (ie Ethernet Card).
* Returns 0 if the device was created or a negative error code otherwise.
*/
static int register_vlan_device(struct net_device *real_dev, u16 vlan_id)
{
struct net_device *new_dev;
struct net *net = dev_net(real_dev);
struct vlan_net *vn = net_generic(net, vlan_net_id);
char name[IFNAMSIZ];
int err;
if (vlan_id >= VLAN_VID_MASK)
return -ERANGE;
err = vlan_check_real_dev(real_dev, vlan_id);
if (err < 0)
return err;
/* Gotta set up the fields for the device. */
switch (vn->name_type) {
case VLAN_NAME_TYPE_RAW_PLUS_VID:
/* name will look like: eth1.0005 */
snprintf(name, IFNAMSIZ, "%s.%.4i", real_dev->name, vlan_id);
break;
case VLAN_NAME_TYPE_PLUS_VID_NO_PAD:
/* Put our vlan.VID in the name.
* Name will look like: vlan5
*/
snprintf(name, IFNAMSIZ, "vlan%i", vlan_id);
break;
case VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD:
/* Put our vlan.VID in the name.
* Name will look like: eth0.5
*/
snprintf(name, IFNAMSIZ, "%s.%i", real_dev->name, vlan_id);
break;
case VLAN_NAME_TYPE_PLUS_VID:
/* Put our vlan.VID in the name.
* Name will look like: vlan0005
*/
default:
snprintf(name, IFNAMSIZ, "vlan%.4i", vlan_id);
}
new_dev = alloc_netdev(sizeof(struct vlan_dev_priv), name, vlan_setup);
if (new_dev == NULL)
return -ENOBUFS;
dev_net_set(new_dev, net);
/* need 4 bytes for extra VLAN header info,
* hope the underlying device can handle it.
*/
new_dev->mtu = real_dev->mtu;
new_dev->priv_flags |= (real_dev->priv_flags & IFF_UNICAST_FLT);
vlan_dev_priv(new_dev)->vlan_id = vlan_id;
vlan_dev_priv(new_dev)->real_dev = real_dev;
vlan_dev_priv(new_dev)->dent = NULL;
vlan_dev_priv(new_dev)->flags = VLAN_FLAG_REORDER_HDR;
new_dev->rtnl_link_ops = &vlan_link_ops;
err = register_vlan_dev(new_dev);
if (err < 0)
goto out_free_newdev;
return 0;
out_free_newdev:
free_netdev(new_dev);
return err;
}
static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg)
{
struct net_device *dev;
char name[IFNAMSIZ];
struct l2tp_tunnel *tunnel;
struct l2tp_session *session;
struct l2tp_eth *priv;
struct l2tp_eth_sess *spriv;
int rc;
struct l2tp_eth_net *pn;
tunnel = l2tp_tunnel_find(net, tunnel_id);
if (!tunnel) {
rc = -ENODEV;
goto out;
}
session = l2tp_session_find(net, tunnel, session_id);
if (session) {
rc = -EEXIST;
goto out;
}
if (cfg->ifname) {
dev = dev_get_by_name(net, cfg->ifname);
if (dev) {
dev_put(dev);
rc = -EEXIST;
goto out;
}
strlcpy(name, cfg->ifname, IFNAMSIZ);
} else
strcpy(name, L2TP_ETH_DEV_NAME);
session = l2tp_session_create(sizeof(*spriv), tunnel, session_id,
peer_session_id, cfg);
if (!session) {
rc = -ENOMEM;
goto out;
}
dev = alloc_netdev(sizeof(*priv), name, l2tp_eth_dev_setup);
if (!dev) {
rc = -ENOMEM;
goto out_del_session;
}
dev_net_set(dev, net);
if (session->mtu == 0)
session->mtu = dev->mtu - session->hdr_len;
dev->mtu = session->mtu;
dev->needed_headroom += session->hdr_len;
priv = netdev_priv(dev);
priv->dev = dev;
priv->session = session;
INIT_LIST_HEAD(&priv->list);
priv->tunnel_sock = tunnel->sock;
session->recv_skb = l2tp_eth_dev_recv;
session->session_close = l2tp_eth_delete;
#if defined(CONFIG_L2TP_DEBUGFS) || defined(CONFIG_L2TP_DEBUGFS_MODULE)
session->show = l2tp_eth_show;
#endif
spriv = l2tp_session_priv(session);
spriv->dev = dev;
rc = register_netdev(dev);
if (rc < 0)
goto out_del_dev;
__module_get(THIS_MODULE);
/* Must be done after register_netdev() */
strlcpy(session->ifname, dev->name, IFNAMSIZ);
dev_hold(dev);
pn = l2tp_eth_pernet(dev_net(dev));
spin_lock(&pn->l2tp_eth_lock);
list_add(&priv->list, &pn->l2tp_eth_dev_list);
spin_unlock(&pn->l2tp_eth_lock);
return 0;
out_del_dev:
free_netdev(dev);
spriv->dev = NULL;
out_del_session:
l2tp_session_delete(session);
out:
return rc;
}
/*
* create a new virtual interface with the given name
*/
struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
char *name,
enum nl80211_iftype type,
u32 *flags,
struct vif_params *params)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
struct mwifiex_private *priv;
struct net_device *dev;
void *mdev_priv;
struct wireless_dev *wdev;
if (!adapter)
return ERR_PTR(-EFAULT);
switch (type) {
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
if (priv->bss_mode) {
wiphy_err(wiphy,
"cannot create multiple sta/adhoc ifaces\n");
return ERR_PTR(-EINVAL);
}
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev)
return ERR_PTR(-ENOMEM);
wdev->wiphy = wiphy;
priv->wdev = wdev;
wdev->iftype = NL80211_IFTYPE_STATION;
if (type == NL80211_IFTYPE_UNSPECIFIED)
priv->bss_mode = NL80211_IFTYPE_STATION;
else
priv->bss_mode = type;
priv->bss_type = MWIFIEX_BSS_TYPE_STA;
priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
priv->bss_role = MWIFIEX_BSS_ROLE_STA;
priv->bss_num = 0;
break;
case NL80211_IFTYPE_AP:
priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
if (priv->bss_mode) {
wiphy_err(wiphy, "Can't create multiple AP interfaces");
return ERR_PTR(-EINVAL);
}
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev)
return ERR_PTR(-ENOMEM);
priv->wdev = wdev;
wdev->wiphy = wiphy;
wdev->iftype = NL80211_IFTYPE_AP;
priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
priv->bss_priority = MWIFIEX_BSS_ROLE_UAP;
priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
priv->bss_started = 0;
priv->bss_num = 0;
priv->bss_mode = type;
break;
default:
wiphy_err(wiphy, "type not supported\n");
return ERR_PTR(-EINVAL);
}
dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
ether_setup, 1);
if (!dev) {
wiphy_err(wiphy, "no memory available for netdevice\n");
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
return ERR_PTR(-ENOMEM);
}
mwifiex_init_priv_params(priv, dev);
priv->netdev = dev;
mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
if (adapter->config_bands & BAND_A)
mwifiex_setup_ht_caps(
&wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
dev_net_set(dev, wiphy_net(wiphy));
dev->ieee80211_ptr = priv->wdev;
dev->ieee80211_ptr->iftype = priv->bss_mode;
memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
mdev_priv = netdev_priv(dev);
*((unsigned long *) mdev_priv) = (unsigned long) priv;
SET_NETDEV_DEV(dev, adapter->dev);
/* Register network device */
if (register_netdevice(dev)) {
wiphy_err(wiphy, "cannot register virtual network device\n");
free_netdev(dev);
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
return ERR_PTR(-EFAULT);
}
sema_init(&priv->async_sem, 1);
priv->scan_pending_on_block = false;
dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
#ifdef CONFIG_DEBUG_FS
mwifiex_dev_debugfs_init(priv);
#endif
return dev;
}
/**
* @brief Register the device with cfg80211
*
* @param dev A pointer to net_device structure
* @param bss_type BSS type
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status
woal_register_uap_cfg80211(struct net_device * dev, t_u8 bss_type)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
moal_private *priv = (moal_private *) netdev_priv(dev);
void *wdev_priv = NULL;
struct wireless_dev *wdev = NULL;
mlan_fw_info fw_info;
ENTER();
/* Allocate wireless device */
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev) {
PRINTM(MERROR, "Could not allocate wireless device\n");
ret = MLAN_STATUS_FAILURE;
goto err_wdev;
}
/* Allocate wiphy */
wdev->wiphy = wiphy_new(&woal_cfg80211_uap_ops, sizeof(moal_private *));
if (!wdev->wiphy) {
PRINTM(MERROR, "Could not allocate wiphy device\n");
ret = MLAN_STATUS_FAILURE;
goto err_wdev;
}
if (bss_type == MLAN_BSS_TYPE_UAP) {
dev_set_name(&wdev->wiphy->dev, dev->name);
wdev->iftype = NL80211_IFTYPE_AP;
wdev->wiphy->interface_modes =
MBIT(NL80211_IFTYPE_AP) | MBIT(NL80211_IFTYPE_STATION) | 0;
wdev->wiphy->max_scan_ssids = 10;
}
/* Make this wiphy known to this driver only */
wdev->wiphy->privid = mrvl_wiphy_privid;
/* Supported bands */
wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &cfg80211_band_2ghz;
if (MLAN_STATUS_SUCCESS ==
woal_request_get_fw_info(priv, MOAL_CMD_WAIT, &fw_info)) {
if (fw_info.fw_bands & BAND_A)
wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &cfg80211_band_5ghz;
}
/* Initialize cipher suits */
wdev->wiphy->cipher_suites = cfg80211_cipher_suites;
wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cfg80211_cipher_suites);
wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
/* We are using custom domains */
wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
wdev->wiphy->reg_notifier = NULL; // TODO: woal_cfg80211_reg_notifier;
/* Set moal_private pointer in wiphy_priv */
wdev_priv = wiphy_priv(wdev->wiphy);
*(unsigned long *) wdev_priv = (unsigned long) priv;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39) || defined(COMPAT_WIRELESS)
set_wiphy_dev(wdev->wiphy, (struct device *) priv->phandle->hotplug_device);
#endif
if (wiphy_register(wdev->wiphy) < 0) {
PRINTM(MERROR, "Wiphy device registration failed!\n");
ret = MLAN_STATUS_FAILURE;
goto err_wdev;
}
dev_net_set(dev, wiphy_net(wdev->wiphy));
dev->ieee80211_ptr = wdev;
SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
priv->wdev = wdev;
if (ret != MLAN_STATUS_SUCCESS) {
PRINTM(MERROR, "Wiphy device registration failed!\n");
} else {
PRINTM(MINFO, "Successfully registered wiphy device\n");
LEAVE();
return ret;
}
wiphy_unregister(wdev->wiphy);
err_wdev:
dev->ieee80211_ptr = NULL;
if (wdev && wdev->wiphy)
wiphy_free(wdev->wiphy);
kfree(wdev);
LEAVE();
return ret;
}
/*
* create a new virtual interface with the given name
*/
struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
char *name,
enum nl80211_iftype type,
u32 *flags,
struct vif_params *params)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
struct mwifiex_adapter *adapter;
struct net_device *dev;
void *mdev_priv;
if (!priv)
return NULL;
adapter = priv->adapter;
if (!adapter)
return NULL;
switch (type) {
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
if (priv->bss_mode) {
wiphy_err(wiphy, "cannot create multiple"
" station/adhoc interfaces\n");
return NULL;
}
if (type == NL80211_IFTYPE_UNSPECIFIED)
priv->bss_mode = NL80211_IFTYPE_STATION;
else
priv->bss_mode = type;
priv->bss_type = MWIFIEX_BSS_TYPE_STA;
priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
priv->bss_priority = 0;
priv->bss_role = MWIFIEX_BSS_ROLE_STA;
priv->bss_index = 0;
priv->bss_num = 0;
break;
default:
wiphy_err(wiphy, "type not supported\n");
return NULL;
}
dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
ether_setup, 1);
if (!dev) {
wiphy_err(wiphy, "no memory available for netdevice\n");
goto error;
}
dev_net_set(dev, wiphy_net(wiphy));
dev->ieee80211_ptr = priv->wdev;
dev->ieee80211_ptr->iftype = priv->bss_mode;
memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
mdev_priv = netdev_priv(dev);
*((unsigned long *) mdev_priv) = (unsigned long) priv;
priv->netdev = dev;
mwifiex_init_priv_params(priv, dev);
SET_NETDEV_DEV(dev, adapter->dev);
/* Register network device */
if (register_netdevice(dev)) {
wiphy_err(wiphy, "cannot register virtual network device\n");
goto error;
}
sema_init(&priv->async_sem, 1);
priv->scan_pending_on_block = false;
dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
#ifdef CONFIG_DEBUG_FS
mwifiex_dev_debugfs_init(priv);
#endif
return dev;
error:
if (dev && (dev->reg_state == NETREG_UNREGISTERED))
free_netdev(dev);
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
return NULL;
}
/*
* This function registers the device with CFG802.11 subsystem.
*
* The function creates the wireless device/wiphy, populates it with
* default parameters and handler function pointers, and finally
* registers the device.
*/
int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac,
struct mwifiex_private *priv)
{
int ret;
void *wdev_priv;
struct wireless_dev *wdev;
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev) {
dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
__func__);
return -ENOMEM;
}
wdev->wiphy =
wiphy_new(&mwifiex_cfg80211_ops,
sizeof(struct mwifiex_private *));
if (!wdev->wiphy) {
kfree(wdev);
return -ENOMEM;
}
wdev->iftype = NL80211_IFTYPE_STATION;
wdev->wiphy->max_scan_ssids = 10;
wdev->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
mwifiex_setup_ht_caps(
&wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
if (priv->adapter->config_bands & BAND_A) {
wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
mwifiex_setup_ht_caps(
&wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
} else {
wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
}
/* Initialize cipher suits */
wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
memcpy(wdev->wiphy->perm_addr, mac, 6);
wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
/* We are using custom domains */
wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
/* Set struct mwifiex_private pointer in wiphy_priv */
wdev_priv = wiphy_priv(wdev->wiphy);
*(unsigned long *) wdev_priv = (unsigned long) priv;
set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
ret = wiphy_register(wdev->wiphy);
if (ret < 0) {
dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
__func__);
wiphy_free(wdev->wiphy);
kfree(wdev);
return ret;
} else {
dev_dbg(priv->adapter->dev,
"info: successfully registered wiphy device\n");
}
dev_net_set(dev, wiphy_net(wdev->wiphy));
dev->ieee80211_ptr = wdev;
memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6);
memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6);
SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
priv->wdev = wdev;
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
return ret;
}
static int l2tp_eth_create(struct net *net, struct l2tp_tunnel *tunnel,
u32 session_id, u32 peer_session_id,
struct l2tp_session_cfg *cfg)
{
unsigned char name_assign_type;
struct net_device *dev;
char name[IFNAMSIZ];
struct l2tp_session *session;
struct l2tp_eth *priv;
struct l2tp_eth_sess *spriv;
int rc;
if (cfg->ifname) {
strlcpy(name, cfg->ifname, IFNAMSIZ);
name_assign_type = NET_NAME_USER;
} else {
strcpy(name, L2TP_ETH_DEV_NAME);
name_assign_type = NET_NAME_ENUM;
}
session = l2tp_session_create(sizeof(*spriv), tunnel, session_id,
peer_session_id, cfg);
if (IS_ERR(session)) {
rc = PTR_ERR(session);
goto out;
}
dev = alloc_netdev(sizeof(*priv), name, name_assign_type,
l2tp_eth_dev_setup);
if (!dev) {
rc = -ENOMEM;
goto out_del_session;
}
dev_net_set(dev, net);
dev->min_mtu = 0;
dev->max_mtu = ETH_MAX_MTU;
l2tp_eth_adjust_mtu(tunnel, session, dev);
priv = netdev_priv(dev);
priv->dev = dev;
priv->session = session;
priv->tunnel_sock = tunnel->sock;
session->recv_skb = l2tp_eth_dev_recv;
session->session_close = l2tp_eth_delete;
#if IS_ENABLED(CONFIG_L2TP_DEBUGFS)
session->show = l2tp_eth_show;
#endif
spriv = l2tp_session_priv(session);
spriv->dev = dev;
rc = register_netdev(dev);
if (rc < 0)
goto out_del_dev;
__module_get(THIS_MODULE);
/* Must be done after register_netdev() */
strlcpy(session->ifname, dev->name, IFNAMSIZ);
dev_hold(dev);
return 0;
out_del_dev:
free_netdev(dev);
spriv->dev = NULL;
out_del_session:
l2tp_session_delete(session);
out:
return rc;
}
int sn_register_netdev(void *bar, struct sn_device *dev)
{
struct sn_conf_space *conf = bar;
int ret;
struct net *net = NULL; /* network namespace */
rtnl_lock();
if (conf->netns_fd >= 0) {
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
log_err("'netns' option requires Linux kernel 4.0 or higher\n");
ret = -EINVAL;
goto fail_free;
#else
net = get_net_ns_by_fd(conf->netns_fd);
if (IS_ERR(net)) {
log_err("invalid or not a net namespace fd %d\n",
conf->netns_fd);
ret = PTR_ERR(net);
goto fail_free;
}
#endif
} else if (conf->container_pid) {
net = get_net_ns_by_pid(conf->container_pid);
if (IS_ERR(net)) {
log_err("cannot find namespace of pid %d\n",
conf->container_pid);
ret = PTR_ERR(net);
goto fail_free;
}
}
if (!IS_ERR_OR_NULL(net)) {
dev_net_set(dev->netdev, net);
put_net(net);
}
ret = register_netdevice(dev->netdev);
if (ret) {
log_err("%s: register_netdev() failed (ret = %d)\n",
dev->netdev->name, ret);
goto fail_free;
}
/* interface "UP" by default */
dev_open(dev->netdev);
strcpy(conf->ifname, dev->netdev->name);
log_info("%s: registered - %pM txq %d rxq %d\n",
dev->netdev->name,
dev->netdev->dev_addr,
dev->netdev->real_num_tx_queues,
dev->netdev->real_num_rx_queues);
rtnl_unlock();
return ret;
fail_free:
rtnl_unlock();
free_netdev(dev->netdev);
return ret;
}
