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-rw-r--r--drivers/staging/batman-adv/soft-interface.c398
1 files changed, 0 insertions, 398 deletions
diff --git a/drivers/staging/batman-adv/soft-interface.c b/drivers/staging/batman-adv/soft-interface.c
deleted file mode 100644
index 0e996181daf7..000000000000
--- a/drivers/staging/batman-adv/soft-interface.c
+++ /dev/null
@@ -1,398 +0,0 @@
-/*
- * Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner, Simon Wunderlich
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- */
-
-#include "main.h"
-#include "soft-interface.h"
-#include "hard-interface.h"
-#include "routing.h"
-#include "send.h"
-#include "bat_debugfs.h"
-#include "translation-table.h"
-#include "types.h"
-#include "hash.h"
-#include "send.h"
-#include "bat_sysfs.h"
-#include <linux/slab.h>
-#include <linux/ethtool.h>
-#include <linux/etherdevice.h>
-#include "unicast.h"
-
-
-static int bat_get_settings(struct net_device *dev, struct ethtool_cmd *cmd);
-static void bat_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info);
-static u32 bat_get_msglevel(struct net_device *dev);
-static void bat_set_msglevel(struct net_device *dev, u32 value);
-static u32 bat_get_link(struct net_device *dev);
-static u32 bat_get_rx_csum(struct net_device *dev);
-static int bat_set_rx_csum(struct net_device *dev, u32 data);
-
-static const struct ethtool_ops bat_ethtool_ops = {
- .get_settings = bat_get_settings,
- .get_drvinfo = bat_get_drvinfo,
- .get_msglevel = bat_get_msglevel,
- .set_msglevel = bat_set_msglevel,
- .get_link = bat_get_link,
- .get_rx_csum = bat_get_rx_csum,
- .set_rx_csum = bat_set_rx_csum
-};
-
-int my_skb_head_push(struct sk_buff *skb, unsigned int len)
-{
- int result;
-
- /**
- * TODO: We must check if we can release all references to non-payload
- * data using skb_header_release in our skbs to allow skb_cow_header to
- * work optimally. This means that those skbs are not allowed to read
- * or write any data which is before the current position of skb->data
- * after that call and thus allow other skbs with the same data buffer
- * to write freely in that area.
- */
- result = skb_cow_head(skb, len);
- if (result < 0)
- return result;
-
- skb_push(skb, len);
- return 0;
-}
-
-static int interface_open(struct net_device *dev)
-{
- netif_start_queue(dev);
- return 0;
-}
-
-static int interface_release(struct net_device *dev)
-{
- netif_stop_queue(dev);
- return 0;
-}
-
-static struct net_device_stats *interface_stats(struct net_device *dev)
-{
- struct bat_priv *bat_priv = netdev_priv(dev);
- return &bat_priv->stats;
-}
-
-static int interface_set_mac_addr(struct net_device *dev, void *p)
-{
- struct bat_priv *bat_priv = netdev_priv(dev);
- struct sockaddr *addr = p;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- /* only modify hna-table if it has been initialised before */
- if (atomic_read(&bat_priv->mesh_state) == MESH_ACTIVE) {
- hna_local_remove(bat_priv, dev->dev_addr,
- "mac address changed");
- hna_local_add(dev, addr->sa_data);
- }
-
- memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
-
- return 0;
-}
-
-static int interface_change_mtu(struct net_device *dev, int new_mtu)
-{
- /* check ranges */
- if ((new_mtu < 68) || (new_mtu > hardif_min_mtu(dev)))
- return -EINVAL;
-
- dev->mtu = new_mtu;
-
- return 0;
-}
-
-int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
-{
- struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
- struct bat_priv *bat_priv = netdev_priv(soft_iface);
- struct bcast_packet *bcast_packet;
- int data_len = skb->len, ret;
-
- if (atomic_read(&bat_priv->mesh_state) != MESH_ACTIVE)
- goto dropped;
-
- soft_iface->trans_start = jiffies;
-
- /* TODO: check this for locks */
- hna_local_add(soft_iface, ethhdr->h_source);
-
- /* ethernet packet should be broadcasted */
- if (is_bcast(ethhdr->h_dest) || is_mcast(ethhdr->h_dest)) {
- if (!bat_priv->primary_if)
- goto dropped;
-
- if (my_skb_head_push(skb, sizeof(struct bcast_packet)) < 0)
- goto dropped;
-
- bcast_packet = (struct bcast_packet *)skb->data;
- bcast_packet->version = COMPAT_VERSION;
- bcast_packet->ttl = TTL;
-
- /* batman packet type: broadcast */
- bcast_packet->packet_type = BAT_BCAST;
-
- /* hw address of first interface is the orig mac because only
- * this mac is known throughout the mesh */
- memcpy(bcast_packet->orig,
- bat_priv->primary_if->net_dev->dev_addr, ETH_ALEN);
-
- /* set broadcast sequence number */
- bcast_packet->seqno =
- htonl(atomic_inc_return(&bat_priv->bcast_seqno));
-
- add_bcast_packet_to_list(bat_priv, skb);
-
- /* a copy is stored in the bcast list, therefore removing
- * the original skb. */
- kfree_skb(skb);
-
- /* unicast packet */
- } else {
- ret = unicast_send_skb(skb, bat_priv);
- if (ret != 0)
- goto dropped_freed;
- }
-
- bat_priv->stats.tx_packets++;
- bat_priv->stats.tx_bytes += data_len;
- goto end;
-
-dropped:
- kfree_skb(skb);
-dropped_freed:
- bat_priv->stats.tx_dropped++;
-end:
- return NETDEV_TX_OK;
-}
-
-void interface_rx(struct net_device *soft_iface,
- struct sk_buff *skb, int hdr_size)
-{
- struct bat_priv *priv = netdev_priv(soft_iface);
-
- /* check if enough space is available for pulling, and pull */
- if (!pskb_may_pull(skb, hdr_size))
- goto dropped;
-
- skb_pull_rcsum(skb, hdr_size);
-/* skb_set_mac_header(skb, -sizeof(struct ethhdr));*/
-
- /* skb->dev & skb->pkt_type are set here */
- if (unlikely(!pskb_may_pull(skb, ETH_HLEN)))
- goto dropped;
- skb->protocol = eth_type_trans(skb, soft_iface);
-
- /* should not be neccesary anymore as we use skb_pull_rcsum()
- * TODO: please verify this and remove this TODO
- * -- Dec 21st 2009, Simon Wunderlich */
-
-/* skb->ip_summed = CHECKSUM_UNNECESSARY;*/
-
- priv->stats.rx_packets++;
- priv->stats.rx_bytes += skb->len + sizeof(struct ethhdr);
-
- soft_iface->last_rx = jiffies;
-
- netif_rx(skb);
- return;
-
-dropped:
- kfree_skb(skb);
- return;
-}
-
-#ifdef HAVE_NET_DEVICE_OPS
-static const struct net_device_ops bat_netdev_ops = {
- .ndo_open = interface_open,
- .ndo_stop = interface_release,
- .ndo_get_stats = interface_stats,
- .ndo_set_mac_address = interface_set_mac_addr,
- .ndo_change_mtu = interface_change_mtu,
- .ndo_start_xmit = interface_tx,
- .ndo_validate_addr = eth_validate_addr
-};
-#endif
-
-static void interface_setup(struct net_device *dev)
-{
- struct bat_priv *priv = netdev_priv(dev);
- char dev_addr[ETH_ALEN];
-
- ether_setup(dev);
-
-#ifdef HAVE_NET_DEVICE_OPS
- dev->netdev_ops = &bat_netdev_ops;
-#else
- dev->open = interface_open;
- dev->stop = interface_release;
- dev->get_stats = interface_stats;
- dev->set_mac_address = interface_set_mac_addr;
- dev->change_mtu = interface_change_mtu;
- dev->hard_start_xmit = interface_tx;
-#endif
- dev->destructor = free_netdev;
-
- /**
- * can't call min_mtu, because the needed variables
- * have not been initialized yet
- */
- dev->mtu = ETH_DATA_LEN;
- dev->hard_header_len = BAT_HEADER_LEN; /* reserve more space in the
- * skbuff for our header */
-
- /* generate random address */
- random_ether_addr(dev_addr);
- memcpy(dev->dev_addr, dev_addr, ETH_ALEN);
-
- SET_ETHTOOL_OPS(dev, &bat_ethtool_ops);
-
- memset(priv, 0, sizeof(struct bat_priv));
-}
-
-struct net_device *softif_create(char *name)
-{
- struct net_device *soft_iface;
- struct bat_priv *bat_priv;
- int ret;
-
- soft_iface = alloc_netdev(sizeof(struct bat_priv) , name,
- interface_setup);
-
- if (!soft_iface) {
- pr_err("Unable to allocate the batman interface: %s\n", name);
- goto out;
- }
-
- ret = register_netdev(soft_iface);
- if (ret < 0) {
- pr_err("Unable to register the batman interface '%s': %i\n",
- name, ret);
- goto free_soft_iface;
- }
-
- bat_priv = netdev_priv(soft_iface);
-
- atomic_set(&bat_priv->aggregation_enabled, 1);
- atomic_set(&bat_priv->bonding_enabled, 0);
- atomic_set(&bat_priv->vis_mode, VIS_TYPE_CLIENT_UPDATE);
- atomic_set(&bat_priv->orig_interval, 1000);
- atomic_set(&bat_priv->log_level, 0);
- atomic_set(&bat_priv->frag_enabled, 1);
- atomic_set(&bat_priv->bcast_queue_left, BCAST_QUEUE_LEN);
- atomic_set(&bat_priv->batman_queue_left, BATMAN_QUEUE_LEN);
-
- atomic_set(&bat_priv->mesh_state, MESH_INACTIVE);
- atomic_set(&bat_priv->bcast_seqno, 1);
- atomic_set(&bat_priv->hna_local_changed, 0);
-
- bat_priv->primary_if = NULL;
- bat_priv->num_ifaces = 0;
-
- ret = sysfs_add_meshif(soft_iface);
- if (ret < 0)
- goto unreg_soft_iface;
-
- ret = debugfs_add_meshif(soft_iface);
- if (ret < 0)
- goto unreg_sysfs;
-
- ret = mesh_init(soft_iface);
- if (ret < 0)
- goto unreg_debugfs;
-
- return soft_iface;
-
-unreg_debugfs:
- debugfs_del_meshif(soft_iface);
-unreg_sysfs:
- sysfs_del_meshif(soft_iface);
-unreg_soft_iface:
- unregister_netdev(soft_iface);
- return NULL;
-
-free_soft_iface:
- free_netdev(soft_iface);
-out:
- return NULL;
-}
-
-void softif_destroy(struct net_device *soft_iface)
-{
- debugfs_del_meshif(soft_iface);
- sysfs_del_meshif(soft_iface);
- mesh_free(soft_iface);
- unregister_netdevice(soft_iface);
-}
-
-/* ethtool */
-static int bat_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- cmd->supported = 0;
- cmd->advertising = 0;
- cmd->speed = SPEED_10;
- cmd->duplex = DUPLEX_FULL;
- cmd->port = PORT_TP;
- cmd->phy_address = 0;
- cmd->transceiver = XCVR_INTERNAL;
- cmd->autoneg = AUTONEG_DISABLE;
- cmd->maxtxpkt = 0;
- cmd->maxrxpkt = 0;
-
- return 0;
-}
-
-static void bat_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- strcpy(info->driver, "B.A.T.M.A.N. advanced");
- strcpy(info->version, SOURCE_VERSION);
- strcpy(info->fw_version, "N/A");
- strcpy(info->bus_info, "batman");
-}
-
-static u32 bat_get_msglevel(struct net_device *dev)
-{
- return -EOPNOTSUPP;
-}
-
-static void bat_set_msglevel(struct net_device *dev, u32 value)
-{
-}
-
-static u32 bat_get_link(struct net_device *dev)
-{
- return 1;
-}
-
-static u32 bat_get_rx_csum(struct net_device *dev)
-{
- return 0;
-}
-
-static int bat_set_rx_csum(struct net_device *dev, u32 data)
-{
- return -EOPNOTSUPP;
-}