batman-adv: Prefix gateway enum with BATADV_
[cascardo/linux.git] / net / batman-adv / soft-interface.c
index 0658781..b77e598 100644 (file)
 #include "bridge_loop_avoidance.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 int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd);
+static void batadv_get_drvinfo(struct net_device *dev,
+                              struct ethtool_drvinfo *info);
+static u32 batadv_get_msglevel(struct net_device *dev);
+static void batadv_set_msglevel(struct net_device *dev, u32 value);
+static u32 batadv_get_link(struct net_device *dev);
 static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data);
 static void batadv_get_ethtool_stats(struct net_device *dev,
                                     struct ethtool_stats *stats, u64 *data);
 static int batadv_get_sset_count(struct net_device *dev, int stringset);
 
-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,
+static const struct ethtool_ops batadv_ethtool_ops = {
+       .get_settings = batadv_get_settings,
+       .get_drvinfo = batadv_get_drvinfo,
+       .get_msglevel = batadv_get_msglevel,
+       .set_msglevel = batadv_set_msglevel,
+       .get_link = batadv_get_link,
        .get_strings = batadv_get_strings,
        .get_ethtool_stats = batadv_get_ethtool_stats,
        .get_sset_count = batadv_get_sset_count,
@@ -78,25 +78,25 @@ int batadv_skb_head_push(struct sk_buff *skb, unsigned int len)
        return 0;
 }
 
-static int interface_open(struct net_device *dev)
+static int batadv_interface_open(struct net_device *dev)
 {
        netif_start_queue(dev);
        return 0;
 }
 
-static int interface_release(struct net_device *dev)
+static int batadv_interface_release(struct net_device *dev)
 {
        netif_stop_queue(dev);
        return 0;
 }
 
-static struct net_device_stats *interface_stats(struct net_device *dev)
+static struct net_device_stats *batadv_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)
+static int batadv_interface_set_mac_addr(struct net_device *dev, void *p)
 {
        struct bat_priv *bat_priv = netdev_priv(dev);
        struct sockaddr *addr = p;
@@ -108,7 +108,7 @@ static int interface_set_mac_addr(struct net_device *dev, void *p)
        if (atomic_read(&bat_priv->mesh_state) == MESH_ACTIVE) {
                batadv_tt_local_remove(bat_priv, dev->dev_addr,
                                       "mac address changed", false);
-               batadv_tt_local_add(dev, addr->sa_data, NULL_IFINDEX);
+               batadv_tt_local_add(dev, addr->sa_data, BATADV_NULL_IFINDEX);
        }
 
        memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
@@ -116,7 +116,7 @@ static int interface_set_mac_addr(struct net_device *dev, void *p)
        return 0;
 }
 
-static int interface_change_mtu(struct net_device *dev, int new_mtu)
+static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu)
 {
        /* check ranges */
        if ((new_mtu < 68) || (new_mtu > batadv_hardif_min_mtu(dev)))
@@ -127,13 +127,15 @@ static int interface_change_mtu(struct net_device *dev, int new_mtu)
        return 0;
 }
 
-static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
+static int batadv_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 hard_iface *primary_if = NULL;
        struct bcast_packet *bcast_packet;
        struct vlan_ethhdr *vhdr;
+       __be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN);
        static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, 0x00,
                                                   0x00};
        unsigned int header_len = 0;
@@ -151,11 +153,11 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
                vhdr = (struct vlan_ethhdr *)skb->data;
                vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
 
-               if (ntohs(vhdr->h_vlan_encapsulated_proto) != ETH_P_BATMAN)
+               if (vhdr->h_vlan_encapsulated_proto != ethertype)
                        break;
 
                /* fall through */
-       case ETH_P_BATMAN:
+       case BATADV_ETH_P_BATMAN:
                goto dropped;
        }
 
@@ -168,14 +170,14 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
        /* don't accept stp packets. STP does not help in meshes.
         * better use the bridge loop avoidance ...
         */
-       if (compare_eth(ethhdr->h_dest, stp_addr))
+       if (batadv_compare_eth(ethhdr->h_dest, stp_addr))
                goto dropped;
 
        if (is_multicast_ether_addr(ethhdr->h_dest)) {
                do_bcast = true;
 
                switch (atomic_read(&bat_priv->gw_mode)) {
-               case GW_MODE_SERVER:
+               case BATADV_GW_MODE_SERVER:
                        /* gateway servers should not send dhcp
                         * requests into the mesh
                         */
@@ -183,7 +185,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
                        if (ret)
                                goto dropped;
                        break;
-               case GW_MODE_CLIENT:
+               case BATADV_GW_MODE_CLIENT:
                        /* gateway clients should send dhcp requests
                         * via unicast to their gateway
                         */
@@ -191,7 +193,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
                        if (ret)
                                do_bcast = false;
                        break;
-               case GW_MODE_OFF:
+               case BATADV_GW_MODE_OFF:
                default:
                        break;
                }
@@ -199,7 +201,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
 
        /* ethernet packet should be broadcasted */
        if (do_bcast) {
-               primary_if = primary_if_get_selected(bat_priv);
+               primary_if = batadv_primary_if_get_selected(bat_priv);
                if (!primary_if)
                        goto dropped;
 
@@ -207,8 +209,8 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
                        goto dropped;
 
                bcast_packet = (struct bcast_packet *)skb->data;
-               bcast_packet->header.version = COMPAT_VERSION;
-               bcast_packet->header.ttl = TTL;
+               bcast_packet->header.version = BATADV_COMPAT_VERSION;
+               bcast_packet->header.ttl = BATADV_TTL;
 
                /* batman packet type: broadcast */
                bcast_packet->header.packet_type = BAT_BCAST;
@@ -232,7 +234,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
 
        /* unicast packet */
        } else {
-               if (atomic_read(&bat_priv->gw_mode) != GW_MODE_OFF) {
+               if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_OFF) {
                        ret = batadv_gw_out_of_range(bat_priv, skb, ethhdr);
                        if (ret)
                                goto dropped;
@@ -253,7 +255,7 @@ dropped_freed:
        bat_priv->stats.tx_dropped++;
 end:
        if (primary_if)
-               hardif_free_ref(primary_if);
+               batadv_hardif_free_ref(primary_if);
        return NETDEV_TX_OK;
 }
 
@@ -265,6 +267,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
        struct ethhdr *ethhdr;
        struct vlan_ethhdr *vhdr;
        short vid __maybe_unused = -1;
+       __be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN);
 
        /* check if enough space is available for pulling, and pull */
        if (!pskb_may_pull(skb, hdr_size))
@@ -280,11 +283,11 @@ void batadv_interface_rx(struct net_device *soft_iface,
                vhdr = (struct vlan_ethhdr *)skb->data;
                vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
 
-               if (ntohs(vhdr->h_vlan_encapsulated_proto) != ETH_P_BATMAN)
+               if (vhdr->h_vlan_encapsulated_proto != ethertype)
                        break;
 
                /* fall through */
-       case ETH_P_BATMAN:
+       case BATADV_ETH_P_BATMAN:
                goto dropped;
        }
 
@@ -323,23 +326,23 @@ out:
        return;
 }
 
-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,
+static const struct net_device_ops batadv_netdev_ops = {
+       .ndo_open = batadv_interface_open,
+       .ndo_stop = batadv_interface_release,
+       .ndo_get_stats = batadv_interface_stats,
+       .ndo_set_mac_address = batadv_interface_set_mac_addr,
+       .ndo_change_mtu = batadv_interface_change_mtu,
+       .ndo_start_xmit = batadv_interface_tx,
        .ndo_validate_addr = eth_validate_addr
 };
 
-static void interface_setup(struct net_device *dev)
+static void batadv_interface_setup(struct net_device *dev)
 {
        struct bat_priv *priv = netdev_priv(dev);
 
        ether_setup(dev);
 
-       dev->netdev_ops = &bat_netdev_ops;
+       dev->netdev_ops = &batadv_netdev_ops;
        dev->destructor = free_netdev;
        dev->tx_queue_len = 0;
 
@@ -348,12 +351,12 @@ static void interface_setup(struct net_device *dev)
         */
        dev->mtu = ETH_DATA_LEN;
        /* reserve more space in the skbuff for our header */
-       dev->hard_header_len = BAT_HEADER_LEN;
+       dev->hard_header_len = BATADV_HEADER_LEN;
 
        /* generate random address */
        eth_hw_addr_random(dev);
 
-       SET_ETHTOOL_OPS(dev, &bat_ethtool_ops);
+       SET_ETHTOOL_OPS(dev, &batadv_ethtool_ops);
 
        memset(priv, 0, sizeof(*priv));
 }
@@ -364,7 +367,8 @@ struct net_device *batadv_softif_create(const char *name)
        struct bat_priv *bat_priv;
        int ret;
 
-       soft_iface = alloc_netdev(sizeof(*bat_priv), name, interface_setup);
+       soft_iface = alloc_netdev(sizeof(*bat_priv), name,
+                                 batadv_interface_setup);
 
        if (!soft_iface)
                goto out;
@@ -383,15 +387,15 @@ struct net_device *batadv_softif_create(const char *name)
        atomic_set(&bat_priv->bridge_loop_avoidance, 0);
        atomic_set(&bat_priv->ap_isolation, 0);
        atomic_set(&bat_priv->vis_mode, VIS_TYPE_CLIENT_UPDATE);
-       atomic_set(&bat_priv->gw_mode, GW_MODE_OFF);
+       atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF);
        atomic_set(&bat_priv->gw_sel_class, 20);
        atomic_set(&bat_priv->gw_bandwidth, 41);
        atomic_set(&bat_priv->orig_interval, 1000);
        atomic_set(&bat_priv->hop_penalty, 30);
        atomic_set(&bat_priv->log_level, 0);
        atomic_set(&bat_priv->fragmentation, 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->bcast_queue_left, BATADV_BCAST_QUEUE_LEN);
+       atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
 
        atomic_set(&bat_priv->mesh_state, MESH_INACTIVE);
        atomic_set(&bat_priv->bcast_seqno, 1);
@@ -456,14 +460,14 @@ void batadv_softif_destroy(struct net_device *soft_iface)
 
 int batadv_softif_is_valid(const struct net_device *net_dev)
 {
-       if (net_dev->netdev_ops->ndo_start_xmit == interface_tx)
+       if (net_dev->netdev_ops->ndo_start_xmit == batadv_interface_tx)
                return 1;
 
        return 0;
 }
 
 /* ethtool */
-static int bat_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 {
        cmd->supported = 0;
        cmd->advertising = 0;
@@ -479,25 +483,25 @@ static int bat_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
        return 0;
 }
 
-static void bat_get_drvinfo(struct net_device *dev,
-                           struct ethtool_drvinfo *info)
+static void batadv_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->version, BATADV_SOURCE_VERSION);
        strcpy(info->fw_version, "N/A");
        strcpy(info->bus_info, "batman");
 }
 
-static u32 bat_get_msglevel(struct net_device *dev)
+static u32 batadv_get_msglevel(struct net_device *dev)
 {
        return -EOPNOTSUPP;
 }
 
-static void bat_set_msglevel(struct net_device *dev, u32 value)
+static void batadv_set_msglevel(struct net_device *dev, u32 value)
 {
 }
 
-static u32 bat_get_link(struct net_device *dev)
+static u32 batadv_get_link(struct net_device *dev)
 {
        return 1;
 }
@@ -508,7 +512,7 @@ static u32 bat_get_link(struct net_device *dev)
  */
 static const struct {
        const char name[ETH_GSTRING_LEN];
-} bat_counters_strings[] = {
+} batadv_counters_strings[] = {
        { "forward" },
        { "forward_bytes" },
        { "mgmt_tx" },
@@ -527,8 +531,8 @@ static void batadv_get_strings(struct net_device *dev, uint32_t stringset,
                               uint8_t *data)
 {
        if (stringset == ETH_SS_STATS)
-               memcpy(data, bat_counters_strings,
-                      sizeof(bat_counters_strings));
+               memcpy(data, batadv_counters_strings,
+                      sizeof(batadv_counters_strings));
 }
 
 static void batadv_get_ethtool_stats(struct net_device *dev,