Antonio Quartulli | 0b87393 | 2013-01-04 03:05:31 +0100 | [diff] [blame^] | 1 | /* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors: |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 2 | * |
| 3 | * Marek Lindner, Simon Wunderlich |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of version 2 of the GNU General Public |
| 7 | * License as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but |
| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 17 | * 02110-1301, USA |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
| 20 | #include "main.h" |
| 21 | #include "soft-interface.h" |
| 22 | #include "hard-interface.h" |
Antonio Quartulli | c384ea3 | 2011-06-26 03:37:18 +0200 | [diff] [blame] | 23 | #include "distributed-arp-table.h" |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 24 | #include "routing.h" |
| 25 | #include "send.h" |
Sven Eckelmann | b706b13 | 2012-06-10 23:58:51 +0200 | [diff] [blame] | 26 | #include "debugfs.h" |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 27 | #include "translation-table.h" |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 28 | #include "hash.h" |
| 29 | #include "gateway_common.h" |
| 30 | #include "gateway_client.h" |
Sven Eckelmann | b706b13 | 2012-06-10 23:58:51 +0200 | [diff] [blame] | 31 | #include "sysfs.h" |
Antonio Quartulli | 43676ab5 | 2011-04-26 21:31:45 +0200 | [diff] [blame] | 32 | #include "originator.h" |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 33 | #include <linux/slab.h> |
| 34 | #include <linux/ethtool.h> |
| 35 | #include <linux/etherdevice.h> |
| 36 | #include <linux/if_vlan.h> |
Antonio Quartulli | af5d4f7 | 2012-11-26 00:38:50 +0100 | [diff] [blame] | 37 | #include <linux/if_ether.h> |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 38 | #include "unicast.h" |
Simon Wunderlich | 2372138 | 2012-01-22 20:00:19 +0100 | [diff] [blame] | 39 | #include "bridge_loop_avoidance.h" |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 40 | |
| 41 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 42 | static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd); |
| 43 | static void batadv_get_drvinfo(struct net_device *dev, |
| 44 | struct ethtool_drvinfo *info); |
| 45 | static u32 batadv_get_msglevel(struct net_device *dev); |
| 46 | static void batadv_set_msglevel(struct net_device *dev, u32 value); |
| 47 | static u32 batadv_get_link(struct net_device *dev); |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 48 | static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data); |
| 49 | static void batadv_get_ethtool_stats(struct net_device *dev, |
| 50 | struct ethtool_stats *stats, u64 *data); |
| 51 | static int batadv_get_sset_count(struct net_device *dev, int stringset); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 52 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 53 | static const struct ethtool_ops batadv_ethtool_ops = { |
| 54 | .get_settings = batadv_get_settings, |
| 55 | .get_drvinfo = batadv_get_drvinfo, |
| 56 | .get_msglevel = batadv_get_msglevel, |
| 57 | .set_msglevel = batadv_set_msglevel, |
| 58 | .get_link = batadv_get_link, |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 59 | .get_strings = batadv_get_strings, |
| 60 | .get_ethtool_stats = batadv_get_ethtool_stats, |
| 61 | .get_sset_count = batadv_get_sset_count, |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 62 | }; |
| 63 | |
Sven Eckelmann | 04b482a | 2012-05-12 02:09:38 +0200 | [diff] [blame] | 64 | int batadv_skb_head_push(struct sk_buff *skb, unsigned int len) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 65 | { |
| 66 | int result; |
| 67 | |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 68 | /* TODO: We must check if we can release all references to non-payload |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 69 | * data using skb_header_release in our skbs to allow skb_cow_header to |
| 70 | * work optimally. This means that those skbs are not allowed to read |
| 71 | * or write any data which is before the current position of skb->data |
| 72 | * after that call and thus allow other skbs with the same data buffer |
| 73 | * to write freely in that area. |
| 74 | */ |
| 75 | result = skb_cow_head(skb, len); |
| 76 | if (result < 0) |
| 77 | return result; |
| 78 | |
| 79 | skb_push(skb, len); |
| 80 | return 0; |
| 81 | } |
| 82 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 83 | static int batadv_interface_open(struct net_device *dev) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 84 | { |
| 85 | netif_start_queue(dev); |
| 86 | return 0; |
| 87 | } |
| 88 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 89 | static int batadv_interface_release(struct net_device *dev) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 90 | { |
| 91 | netif_stop_queue(dev); |
| 92 | return 0; |
| 93 | } |
| 94 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 95 | static struct net_device_stats *batadv_interface_stats(struct net_device *dev) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 96 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 97 | struct batadv_priv *bat_priv = netdev_priv(dev); |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 98 | struct net_device_stats *stats = &bat_priv->stats; |
| 99 | |
| 100 | stats->tx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_TX); |
| 101 | stats->tx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_TX_BYTES); |
| 102 | stats->tx_dropped = batadv_sum_counter(bat_priv, BATADV_CNT_TX_DROPPED); |
| 103 | stats->rx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_RX); |
| 104 | stats->rx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_RX_BYTES); |
| 105 | return stats; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 106 | } |
| 107 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 108 | static int batadv_interface_set_mac_addr(struct net_device *dev, void *p) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 109 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 110 | struct batadv_priv *bat_priv = netdev_priv(dev); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 111 | struct sockaddr *addr = p; |
Def | 40a3eb3 | 2012-09-20 14:56:13 +0200 | [diff] [blame] | 112 | uint8_t old_addr[ETH_ALEN]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 113 | |
| 114 | if (!is_valid_ether_addr(addr->sa_data)) |
| 115 | return -EADDRNOTAVAIL; |
| 116 | |
Def | 40a3eb3 | 2012-09-20 14:56:13 +0200 | [diff] [blame] | 117 | memcpy(old_addr, dev->dev_addr, ETH_ALEN); |
| 118 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
| 119 | |
Antonio Quartulli | 015758d | 2011-07-09 17:52:13 +0200 | [diff] [blame] | 120 | /* only modify transtable if it has been initialized before */ |
Sven Eckelmann | 39c75a5 | 2012-06-03 22:19:22 +0200 | [diff] [blame] | 121 | if (atomic_read(&bat_priv->mesh_state) == BATADV_MESH_ACTIVE) { |
Def | 40a3eb3 | 2012-09-20 14:56:13 +0200 | [diff] [blame] | 122 | batadv_tt_local_remove(bat_priv, old_addr, |
Sven Eckelmann | 08c36d3 | 2012-05-12 02:09:39 +0200 | [diff] [blame] | 123 | "mac address changed", false); |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 124 | batadv_tt_local_add(dev, addr->sa_data, BATADV_NULL_IFINDEX); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 125 | } |
| 126 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 127 | return 0; |
| 128 | } |
| 129 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 130 | static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 131 | { |
| 132 | /* check ranges */ |
Sven Eckelmann | 9563877 | 2012-05-12 02:09:31 +0200 | [diff] [blame] | 133 | if ((new_mtu < 68) || (new_mtu > batadv_hardif_min_mtu(dev))) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 134 | return -EINVAL; |
| 135 | |
| 136 | dev->mtu = new_mtu; |
| 137 | |
| 138 | return 0; |
| 139 | } |
| 140 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 141 | static int batadv_interface_tx(struct sk_buff *skb, |
| 142 | struct net_device *soft_iface) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 143 | { |
| 144 | struct ethhdr *ethhdr = (struct ethhdr *)skb->data; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 145 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); |
| 146 | struct batadv_hard_iface *primary_if = NULL; |
Sven Eckelmann | 9641269 | 2012-06-05 22:31:30 +0200 | [diff] [blame] | 147 | struct batadv_bcast_packet *bcast_packet; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 148 | struct vlan_ethhdr *vhdr; |
Antonio Quartulli | af5d4f7 | 2012-11-26 00:38:50 +0100 | [diff] [blame] | 149 | __be16 ethertype = __constant_htons(ETH_P_BATMAN); |
Simon Wunderlich | 4934ab9 | 2012-08-19 20:10:09 +0200 | [diff] [blame] | 150 | static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, |
| 151 | 0x00, 0x00}; |
| 152 | static const uint8_t ectp_addr[ETH_ALEN] = {0xCF, 0x00, 0x00, 0x00, |
| 153 | 0x00, 0x00}; |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 154 | unsigned int header_len = 0; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 155 | int data_len = skb->len, ret; |
Simon Wunderlich | 7a5cc24 | 2012-01-22 20:00:27 +0100 | [diff] [blame] | 156 | short vid __maybe_unused = -1; |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 157 | bool do_bcast = false; |
Sven Eckelmann | bbb1f90 | 2012-07-08 17:13:15 +0200 | [diff] [blame] | 158 | uint32_t seqno; |
Antonio Quartulli | c384ea3 | 2011-06-26 03:37:18 +0200 | [diff] [blame] | 159 | unsigned long brd_delay = 1; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 160 | |
Sven Eckelmann | 39c75a5 | 2012-06-03 22:19:22 +0200 | [diff] [blame] | 161 | if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 162 | goto dropped; |
| 163 | |
| 164 | soft_iface->trans_start = jiffies; |
| 165 | |
| 166 | switch (ntohs(ethhdr->h_proto)) { |
| 167 | case ETH_P_8021Q: |
| 168 | vhdr = (struct vlan_ethhdr *)skb->data; |
| 169 | vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; |
| 170 | |
Sven Eckelmann | 7e071c7 | 2012-06-03 22:19:13 +0200 | [diff] [blame] | 171 | if (vhdr->h_vlan_encapsulated_proto != ethertype) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 172 | break; |
| 173 | |
| 174 | /* fall through */ |
Antonio Quartulli | af5d4f7 | 2012-11-26 00:38:50 +0100 | [diff] [blame] | 175 | case ETH_P_BATMAN: |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 176 | goto dropped; |
Simon Wunderlich | a7f6ee9 | 2012-01-22 20:00:18 +0100 | [diff] [blame] | 177 | } |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 178 | |
Sven Eckelmann | 08adf15 | 2012-05-12 13:38:47 +0200 | [diff] [blame] | 179 | if (batadv_bla_tx(bat_priv, skb, vid)) |
Simon Wunderlich | 2372138 | 2012-01-22 20:00:19 +0100 | [diff] [blame] | 180 | goto dropped; |
| 181 | |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 182 | /* Register the client MAC in the transtable */ |
Linus Lüssing | 02233e0 | 2012-10-17 15:07:35 +0200 | [diff] [blame] | 183 | if (!is_multicast_ether_addr(ethhdr->h_source)) |
| 184 | batadv_tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 185 | |
Simon Wunderlich | b1a8c04 | 2012-01-22 20:00:25 +0100 | [diff] [blame] | 186 | /* don't accept stp packets. STP does not help in meshes. |
| 187 | * better use the bridge loop avoidance ... |
Simon Wunderlich | 4934ab9 | 2012-08-19 20:10:09 +0200 | [diff] [blame] | 188 | * |
| 189 | * The same goes for ECTP sent at least by some Cisco Switches, |
| 190 | * it might confuse the mesh when used with bridge loop avoidance. |
Simon Wunderlich | b1a8c04 | 2012-01-22 20:00:25 +0100 | [diff] [blame] | 191 | */ |
Sven Eckelmann | 1eda58b | 2012-05-12 13:48:58 +0200 | [diff] [blame] | 192 | if (batadv_compare_eth(ethhdr->h_dest, stp_addr)) |
Simon Wunderlich | b1a8c04 | 2012-01-22 20:00:25 +0100 | [diff] [blame] | 193 | goto dropped; |
| 194 | |
Simon Wunderlich | 4934ab9 | 2012-08-19 20:10:09 +0200 | [diff] [blame] | 195 | if (batadv_compare_eth(ethhdr->h_dest, ectp_addr)) |
| 196 | goto dropped; |
| 197 | |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 198 | if (is_multicast_ether_addr(ethhdr->h_dest)) { |
| 199 | do_bcast = true; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 200 | |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 201 | switch (atomic_read(&bat_priv->gw_mode)) { |
Sven Eckelmann | cd646ab | 2012-06-03 22:19:18 +0200 | [diff] [blame] | 202 | case BATADV_GW_MODE_SERVER: |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 203 | /* gateway servers should not send dhcp |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 204 | * requests into the mesh |
| 205 | */ |
Sven Eckelmann | 7cf06bc | 2012-05-12 02:09:29 +0200 | [diff] [blame] | 206 | ret = batadv_gw_is_dhcp_target(skb, &header_len); |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 207 | if (ret) |
| 208 | goto dropped; |
| 209 | break; |
Sven Eckelmann | cd646ab | 2012-06-03 22:19:18 +0200 | [diff] [blame] | 210 | case BATADV_GW_MODE_CLIENT: |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 211 | /* gateway clients should send dhcp requests |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 212 | * via unicast to their gateway |
| 213 | */ |
Sven Eckelmann | 7cf06bc | 2012-05-12 02:09:29 +0200 | [diff] [blame] | 214 | ret = batadv_gw_is_dhcp_target(skb, &header_len); |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 215 | if (ret) |
| 216 | do_bcast = false; |
| 217 | break; |
Sven Eckelmann | cd646ab | 2012-06-03 22:19:18 +0200 | [diff] [blame] | 218 | case BATADV_GW_MODE_OFF: |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 219 | default: |
| 220 | break; |
| 221 | } |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 222 | } |
| 223 | |
| 224 | /* ethernet packet should be broadcasted */ |
| 225 | if (do_bcast) { |
Sven Eckelmann | e5d8925 | 2012-05-12 13:48:54 +0200 | [diff] [blame] | 226 | primary_if = batadv_primary_if_get_selected(bat_priv); |
Marek Lindner | 32ae9b2 | 2011-04-20 15:40:58 +0200 | [diff] [blame] | 227 | if (!primary_if) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 228 | goto dropped; |
| 229 | |
Antonio Quartulli | c384ea3 | 2011-06-26 03:37:18 +0200 | [diff] [blame] | 230 | /* in case of ARP request, we do not immediately broadcasti the |
| 231 | * packet, instead we first wait for DAT to try to retrieve the |
| 232 | * correct ARP entry |
| 233 | */ |
| 234 | if (batadv_dat_snoop_outgoing_arp_request(bat_priv, skb)) |
| 235 | brd_delay = msecs_to_jiffies(ARP_REQ_DELAY); |
| 236 | |
Sven Eckelmann | 04b482a | 2012-05-12 02:09:38 +0200 | [diff] [blame] | 237 | if (batadv_skb_head_push(skb, sizeof(*bcast_packet)) < 0) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 238 | goto dropped; |
| 239 | |
Sven Eckelmann | 9641269 | 2012-06-05 22:31:30 +0200 | [diff] [blame] | 240 | bcast_packet = (struct batadv_bcast_packet *)skb->data; |
Sven Eckelmann | 7e071c7 | 2012-06-03 22:19:13 +0200 | [diff] [blame] | 241 | bcast_packet->header.version = BATADV_COMPAT_VERSION; |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 242 | bcast_packet->header.ttl = BATADV_TTL; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 243 | |
| 244 | /* batman packet type: broadcast */ |
Sven Eckelmann | acd34af | 2012-06-03 22:19:21 +0200 | [diff] [blame] | 245 | bcast_packet->header.packet_type = BATADV_BCAST; |
Sven Eckelmann | 162d549 | 2012-06-28 11:56:52 +0200 | [diff] [blame] | 246 | bcast_packet->reserved = 0; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 247 | |
| 248 | /* hw address of first interface is the orig mac because only |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 249 | * this mac is known throughout the mesh |
| 250 | */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 251 | memcpy(bcast_packet->orig, |
Marek Lindner | 32ae9b2 | 2011-04-20 15:40:58 +0200 | [diff] [blame] | 252 | primary_if->net_dev->dev_addr, ETH_ALEN); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 253 | |
| 254 | /* set broadcast sequence number */ |
Sven Eckelmann | bbb1f90 | 2012-07-08 17:13:15 +0200 | [diff] [blame] | 255 | seqno = atomic_inc_return(&bat_priv->bcast_seqno); |
| 256 | bcast_packet->seqno = htonl(seqno); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 257 | |
Antonio Quartulli | c384ea3 | 2011-06-26 03:37:18 +0200 | [diff] [blame] | 258 | batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 259 | |
| 260 | /* a copy is stored in the bcast list, therefore removing |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 261 | * the original skb. |
| 262 | */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 263 | kfree_skb(skb); |
| 264 | |
| 265 | /* unicast packet */ |
| 266 | } else { |
Sven Eckelmann | cd646ab | 2012-06-03 22:19:18 +0200 | [diff] [blame] | 267 | if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_OFF) { |
Sven Eckelmann | 7cf06bc | 2012-05-12 02:09:29 +0200 | [diff] [blame] | 268 | ret = batadv_gw_out_of_range(bat_priv, skb, ethhdr); |
Marek Lindner | be7af5c | 2011-09-08 13:12:53 +0200 | [diff] [blame] | 269 | if (ret) |
| 270 | goto dropped; |
| 271 | } |
| 272 | |
Antonio Quartulli | c384ea3 | 2011-06-26 03:37:18 +0200 | [diff] [blame] | 273 | if (batadv_dat_snoop_outgoing_arp_request(bat_priv, skb)) |
| 274 | goto dropped; |
| 275 | |
| 276 | batadv_dat_snoop_outgoing_arp_reply(bat_priv, skb); |
| 277 | |
Antonio Quartulli | 7cdcf6d | 2012-10-01 09:57:35 +0200 | [diff] [blame] | 278 | ret = batadv_unicast_send_skb(bat_priv, skb); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 279 | if (ret != 0) |
| 280 | goto dropped_freed; |
| 281 | } |
| 282 | |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 283 | batadv_inc_counter(bat_priv, BATADV_CNT_TX); |
| 284 | batadv_add_counter(bat_priv, BATADV_CNT_TX_BYTES, data_len); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 285 | goto end; |
| 286 | |
| 287 | dropped: |
| 288 | kfree_skb(skb); |
| 289 | dropped_freed: |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 290 | batadv_inc_counter(bat_priv, BATADV_CNT_TX_DROPPED); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 291 | end: |
Marek Lindner | 32ae9b2 | 2011-04-20 15:40:58 +0200 | [diff] [blame] | 292 | if (primary_if) |
Sven Eckelmann | e5d8925 | 2012-05-12 13:48:54 +0200 | [diff] [blame] | 293 | batadv_hardif_free_ref(primary_if); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 294 | return NETDEV_TX_OK; |
| 295 | } |
| 296 | |
Sven Eckelmann | 04b482a | 2012-05-12 02:09:38 +0200 | [diff] [blame] | 297 | void batadv_interface_rx(struct net_device *soft_iface, |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 298 | struct sk_buff *skb, struct batadv_hard_iface *recv_if, |
Antonio Quartulli | 3713517 | 2012-07-05 23:38:30 +0200 | [diff] [blame] | 299 | int hdr_size, struct batadv_orig_node *orig_node) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 300 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 301 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 302 | struct ethhdr *ethhdr; |
| 303 | struct vlan_ethhdr *vhdr; |
David S. Miller | 04c9f41 | 2012-07-10 23:56:33 -0700 | [diff] [blame] | 304 | struct batadv_header *batadv_header = (struct batadv_header *)skb->data; |
Simon Wunderlich | 7a5cc24 | 2012-01-22 20:00:27 +0100 | [diff] [blame] | 305 | short vid __maybe_unused = -1; |
Antonio Quartulli | af5d4f7 | 2012-11-26 00:38:50 +0100 | [diff] [blame] | 306 | __be16 ethertype = __constant_htons(ETH_P_BATMAN); |
Simon Wunderlich | 2d3f6cc | 2012-07-04 20:38:19 +0200 | [diff] [blame] | 307 | bool is_bcast; |
| 308 | |
David S. Miller | 04c9f41 | 2012-07-10 23:56:33 -0700 | [diff] [blame] | 309 | is_bcast = (batadv_header->packet_type == BATADV_BCAST); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 310 | |
| 311 | /* check if enough space is available for pulling, and pull */ |
| 312 | if (!pskb_may_pull(skb, hdr_size)) |
| 313 | goto dropped; |
| 314 | |
| 315 | skb_pull_rcsum(skb, hdr_size); |
| 316 | skb_reset_mac_header(skb); |
| 317 | |
| 318 | ethhdr = (struct ethhdr *)skb_mac_header(skb); |
| 319 | |
| 320 | switch (ntohs(ethhdr->h_proto)) { |
| 321 | case ETH_P_8021Q: |
| 322 | vhdr = (struct vlan_ethhdr *)skb->data; |
| 323 | vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; |
| 324 | |
Sven Eckelmann | 7e071c7 | 2012-06-03 22:19:13 +0200 | [diff] [blame] | 325 | if (vhdr->h_vlan_encapsulated_proto != ethertype) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 326 | break; |
| 327 | |
| 328 | /* fall through */ |
Antonio Quartulli | af5d4f7 | 2012-11-26 00:38:50 +0100 | [diff] [blame] | 329 | case ETH_P_BATMAN: |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 330 | goto dropped; |
| 331 | } |
| 332 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 333 | /* skb->dev & skb->pkt_type are set here */ |
| 334 | if (unlikely(!pskb_may_pull(skb, ETH_HLEN))) |
| 335 | goto dropped; |
| 336 | skb->protocol = eth_type_trans(skb, soft_iface); |
| 337 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 338 | /* should not be necessary anymore as we use skb_pull_rcsum() |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 339 | * TODO: please verify this and remove this TODO |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 340 | * -- Dec 21st 2009, Simon Wunderlich |
| 341 | */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 342 | |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 343 | /* skb->ip_summed = CHECKSUM_UNNECESSARY; */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 344 | |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 345 | batadv_inc_counter(bat_priv, BATADV_CNT_RX); |
| 346 | batadv_add_counter(bat_priv, BATADV_CNT_RX_BYTES, |
| 347 | skb->len + ETH_HLEN); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 348 | |
| 349 | soft_iface->last_rx = jiffies; |
| 350 | |
Antonio Quartulli | 74490f9 | 2012-11-08 21:55:30 +0100 | [diff] [blame] | 351 | /* Let the bridge loop avoidance check the packet. If will |
| 352 | * not handle it, we can safely push it up. |
| 353 | */ |
| 354 | if (batadv_bla_rx(bat_priv, skb, vid, is_bcast)) |
| 355 | goto out; |
| 356 | |
Antonio Quartulli | 3713517 | 2012-07-05 23:38:30 +0200 | [diff] [blame] | 357 | if (orig_node) |
| 358 | batadv_tt_add_temporary_global_entry(bat_priv, orig_node, |
| 359 | ethhdr->h_source); |
| 360 | |
Sven Eckelmann | 08c36d3 | 2012-05-12 02:09:39 +0200 | [diff] [blame] | 361 | if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest)) |
Antonio Quartulli | 59b699c | 2011-07-07 15:35:36 +0200 | [diff] [blame] | 362 | goto dropped; |
| 363 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 364 | netif_rx(skb); |
Simon Wunderlich | ba85fac | 2011-04-17 20:34:27 +0200 | [diff] [blame] | 365 | goto out; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 366 | |
| 367 | dropped: |
| 368 | kfree_skb(skb); |
| 369 | out: |
| 370 | return; |
| 371 | } |
| 372 | |
Sven Eckelmann | 36c1d15 | 2012-08-20 09:03:59 +0200 | [diff] [blame] | 373 | /* batman-adv network devices have devices nesting below it and are a special |
| 374 | * "super class" of normal network devices; split their locks off into a |
| 375 | * separate class since they always nest. |
| 376 | */ |
| 377 | static struct lock_class_key batadv_netdev_xmit_lock_key; |
| 378 | static struct lock_class_key batadv_netdev_addr_lock_key; |
| 379 | |
| 380 | /** |
| 381 | * batadv_set_lockdep_class_one - Set lockdep class for a single tx queue |
| 382 | * @dev: device which owns the tx queue |
| 383 | * @txq: tx queue to modify |
| 384 | * @_unused: always NULL |
| 385 | */ |
| 386 | static void batadv_set_lockdep_class_one(struct net_device *dev, |
| 387 | struct netdev_queue *txq, |
| 388 | void *_unused) |
| 389 | { |
| 390 | lockdep_set_class(&txq->_xmit_lock, &batadv_netdev_xmit_lock_key); |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * batadv_set_lockdep_class - Set txq and addr_list lockdep class |
| 395 | * @dev: network device to modify |
| 396 | */ |
| 397 | static void batadv_set_lockdep_class(struct net_device *dev) |
| 398 | { |
| 399 | lockdep_set_class(&dev->addr_list_lock, &batadv_netdev_addr_lock_key); |
| 400 | netdev_for_each_tx_queue(dev, batadv_set_lockdep_class_one, NULL); |
| 401 | } |
| 402 | |
| 403 | /** |
| 404 | * batadv_softif_init - Late stage initialization of soft interface |
| 405 | * @dev: registered network device to modify |
| 406 | * |
| 407 | * Returns error code on failures |
| 408 | */ |
| 409 | static int batadv_softif_init(struct net_device *dev) |
| 410 | { |
| 411 | batadv_set_lockdep_class(dev); |
| 412 | |
| 413 | return 0; |
| 414 | } |
| 415 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 416 | static const struct net_device_ops batadv_netdev_ops = { |
Sven Eckelmann | 36c1d15 | 2012-08-20 09:03:59 +0200 | [diff] [blame] | 417 | .ndo_init = batadv_softif_init, |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 418 | .ndo_open = batadv_interface_open, |
| 419 | .ndo_stop = batadv_interface_release, |
| 420 | .ndo_get_stats = batadv_interface_stats, |
| 421 | .ndo_set_mac_address = batadv_interface_set_mac_addr, |
| 422 | .ndo_change_mtu = batadv_interface_change_mtu, |
| 423 | .ndo_start_xmit = batadv_interface_tx, |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 424 | .ndo_validate_addr = eth_validate_addr |
| 425 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 426 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 427 | static void batadv_interface_setup(struct net_device *dev) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 428 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 429 | struct batadv_priv *priv = netdev_priv(dev); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 430 | |
| 431 | ether_setup(dev); |
| 432 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 433 | dev->netdev_ops = &batadv_netdev_ops; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 434 | dev->destructor = free_netdev; |
Andrew Lunn | af20b71 | 2011-04-17 20:39:07 +0200 | [diff] [blame] | 435 | dev->tx_queue_len = 0; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 436 | |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 437 | /* can't call min_mtu, because the needed variables |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 438 | * have not been initialized yet |
| 439 | */ |
| 440 | dev->mtu = ETH_DATA_LEN; |
Sven Eckelmann | 6e215fd | 2011-05-08 12:45:45 +0200 | [diff] [blame] | 441 | /* reserve more space in the skbuff for our header */ |
Sven Eckelmann | c11fdfa | 2012-06-03 22:19:14 +0200 | [diff] [blame] | 442 | dev->hard_header_len = BATADV_HEADER_LEN; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 443 | |
| 444 | /* generate random address */ |
Danny Kukawka | 28009a6 | 2012-02-17 05:43:27 +0000 | [diff] [blame] | 445 | eth_hw_addr_random(dev); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 446 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 447 | SET_ETHTOOL_OPS(dev, &batadv_ethtool_ops); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 448 | |
Sven Eckelmann | 704509b | 2011-05-14 23:14:54 +0200 | [diff] [blame] | 449 | memset(priv, 0, sizeof(*priv)); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 450 | } |
| 451 | |
Simon Wunderlich | 5bc44dc | 2013-01-11 10:19:51 +0100 | [diff] [blame] | 452 | /** |
| 453 | * batadv_softif_destroy_finish - cleans up the remains of a softif |
| 454 | * @work: work queue item |
| 455 | * |
| 456 | * Free the parts of the soft interface which can not be removed under |
| 457 | * rtnl lock (to prevent deadlock situations). |
| 458 | */ |
| 459 | static void batadv_softif_destroy_finish(struct work_struct *work) |
| 460 | { |
| 461 | struct batadv_priv *bat_priv; |
| 462 | struct net_device *soft_iface; |
| 463 | |
| 464 | bat_priv = container_of(work, struct batadv_priv, |
| 465 | cleanup_work); |
| 466 | soft_iface = bat_priv->soft_iface; |
| 467 | |
| 468 | batadv_debugfs_del_meshif(soft_iface); |
| 469 | batadv_sysfs_del_meshif(soft_iface); |
| 470 | |
| 471 | rtnl_lock(); |
| 472 | unregister_netdevice(soft_iface); |
| 473 | rtnl_unlock(); |
| 474 | } |
| 475 | |
Sven Eckelmann | 04b482a | 2012-05-12 02:09:38 +0200 | [diff] [blame] | 476 | struct net_device *batadv_softif_create(const char *name) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 477 | { |
| 478 | struct net_device *soft_iface; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 479 | struct batadv_priv *bat_priv; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 480 | int ret; |
Sven Eckelmann | d69909d | 2012-06-03 22:19:20 +0200 | [diff] [blame] | 481 | size_t cnt_len = sizeof(uint64_t) * BATADV_CNT_NUM; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 482 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 483 | soft_iface = alloc_netdev(sizeof(*bat_priv), name, |
| 484 | batadv_interface_setup); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 485 | |
Joe Perches | 320f422 | 2011-08-29 14:17:24 -0700 | [diff] [blame] | 486 | if (!soft_iface) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 487 | goto out; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 488 | |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 489 | bat_priv = netdev_priv(soft_iface); |
Simon Wunderlich | 5bc44dc | 2013-01-11 10:19:51 +0100 | [diff] [blame] | 490 | bat_priv->soft_iface = soft_iface; |
| 491 | INIT_WORK(&bat_priv->cleanup_work, batadv_softif_destroy_finish); |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 492 | |
| 493 | /* batadv_interface_stats() needs to be available as soon as |
| 494 | * register_netdevice() has been called |
| 495 | */ |
| 496 | bat_priv->bat_counters = __alloc_percpu(cnt_len, __alignof__(uint64_t)); |
| 497 | if (!bat_priv->bat_counters) |
| 498 | goto free_soft_iface; |
| 499 | |
Sven Eckelmann | c3caf51 | 2011-05-03 11:51:38 +0200 | [diff] [blame] | 500 | ret = register_netdevice(soft_iface); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 501 | if (ret < 0) { |
| 502 | pr_err("Unable to register the batman interface '%s': %i\n", |
| 503 | name, ret); |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 504 | goto free_bat_counters; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 505 | } |
| 506 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 507 | atomic_set(&bat_priv->aggregated_ogms, 1); |
| 508 | atomic_set(&bat_priv->bonding, 0); |
Antonio Quartulli | fa70655 | 2012-11-26 01:27:29 +0100 | [diff] [blame] | 509 | #ifdef CONFIG_BATMAN_ADV_BLA |
Simon Wunderlich | 2372138 | 2012-01-22 20:00:19 +0100 | [diff] [blame] | 510 | atomic_set(&bat_priv->bridge_loop_avoidance, 0); |
Antonio Quartulli | fa70655 | 2012-11-26 01:27:29 +0100 | [diff] [blame] | 511 | #endif |
Antonio Quartulli | 33af49a | 2012-08-08 18:50:57 +0200 | [diff] [blame] | 512 | #ifdef CONFIG_BATMAN_ADV_DAT |
| 513 | atomic_set(&bat_priv->distributed_arp_table, 1); |
| 514 | #endif |
Antonio Quartulli | 59b699c | 2011-07-07 15:35:36 +0200 | [diff] [blame] | 515 | atomic_set(&bat_priv->ap_isolation, 0); |
Sven Eckelmann | acd34af | 2012-06-03 22:19:21 +0200 | [diff] [blame] | 516 | atomic_set(&bat_priv->vis_mode, BATADV_VIS_TYPE_CLIENT_UPDATE); |
Sven Eckelmann | cd646ab | 2012-06-03 22:19:18 +0200 | [diff] [blame] | 517 | atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 518 | atomic_set(&bat_priv->gw_sel_class, 20); |
| 519 | atomic_set(&bat_priv->gw_bandwidth, 41); |
| 520 | atomic_set(&bat_priv->orig_interval, 1000); |
Marek Lindner | 8681a1c | 2012-01-27 23:11:55 +0800 | [diff] [blame] | 521 | atomic_set(&bat_priv->hop_penalty, 30); |
Marek Lindner | 0c430d0 | 2012-12-16 13:53:15 +0800 | [diff] [blame] | 522 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 523 | atomic_set(&bat_priv->log_level, 0); |
Marek Lindner | 0c430d0 | 2012-12-16 13:53:15 +0800 | [diff] [blame] | 524 | #endif |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 525 | atomic_set(&bat_priv->fragmentation, 1); |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 526 | atomic_set(&bat_priv->bcast_queue_left, BATADV_BCAST_QUEUE_LEN); |
| 527 | atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 528 | |
Sven Eckelmann | 39c75a5 | 2012-06-03 22:19:22 +0200 | [diff] [blame] | 529 | atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 530 | atomic_set(&bat_priv->bcast_seqno, 1); |
Sven Eckelmann | 807736f | 2012-07-15 22:26:51 +0200 | [diff] [blame] | 531 | atomic_set(&bat_priv->tt.vn, 0); |
| 532 | atomic_set(&bat_priv->tt.local_changes, 0); |
| 533 | atomic_set(&bat_priv->tt.ogm_append_cnt, 0); |
| 534 | #ifdef CONFIG_BATMAN_ADV_BLA |
| 535 | atomic_set(&bat_priv->bla.num_requests, 0); |
| 536 | #endif |
| 537 | bat_priv->tt.last_changeset = NULL; |
| 538 | bat_priv->tt.last_changeset_len = 0; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 539 | |
| 540 | bat_priv->primary_if = NULL; |
| 541 | bat_priv->num_ifaces = 0; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 542 | |
Sven Eckelmann | 3193e8f | 2012-05-12 02:09:42 +0200 | [diff] [blame] | 543 | ret = batadv_algo_select(bat_priv, batadv_routing_algo); |
Marek Lindner | 1c28047 | 2011-11-28 17:40:17 +0800 | [diff] [blame] | 544 | if (ret < 0) |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 545 | goto unreg_soft_iface; |
Marek Lindner | 1c28047 | 2011-11-28 17:40:17 +0800 | [diff] [blame] | 546 | |
Sven Eckelmann | 5853e22 | 2012-05-12 02:09:24 +0200 | [diff] [blame] | 547 | ret = batadv_sysfs_add_meshif(soft_iface); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 548 | if (ret < 0) |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 549 | goto unreg_soft_iface; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 550 | |
Sven Eckelmann | 40a072d | 2012-05-12 02:09:23 +0200 | [diff] [blame] | 551 | ret = batadv_debugfs_add_meshif(soft_iface); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 552 | if (ret < 0) |
| 553 | goto unreg_sysfs; |
| 554 | |
Sven Eckelmann | 3193e8f | 2012-05-12 02:09:42 +0200 | [diff] [blame] | 555 | ret = batadv_mesh_init(soft_iface); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 556 | if (ret < 0) |
| 557 | goto unreg_debugfs; |
| 558 | |
| 559 | return soft_iface; |
| 560 | |
| 561 | unreg_debugfs: |
Sven Eckelmann | 40a072d | 2012-05-12 02:09:23 +0200 | [diff] [blame] | 562 | batadv_debugfs_del_meshif(soft_iface); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 563 | unreg_sysfs: |
Sven Eckelmann | 5853e22 | 2012-05-12 02:09:24 +0200 | [diff] [blame] | 564 | batadv_sysfs_del_meshif(soft_iface); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 565 | unreg_soft_iface: |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 566 | free_percpu(bat_priv->bat_counters); |
Simon Wunderlich | 06ba7ce | 2011-11-07 13:57:48 +0100 | [diff] [blame] | 567 | unregister_netdevice(soft_iface); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 568 | return NULL; |
| 569 | |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 570 | free_bat_counters: |
| 571 | free_percpu(bat_priv->bat_counters); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 572 | free_soft_iface: |
| 573 | free_netdev(soft_iface); |
| 574 | out: |
| 575 | return NULL; |
| 576 | } |
| 577 | |
Sven Eckelmann | 04b482a | 2012-05-12 02:09:38 +0200 | [diff] [blame] | 578 | void batadv_softif_destroy(struct net_device *soft_iface) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 579 | { |
Simon Wunderlich | 5bc44dc | 2013-01-11 10:19:51 +0100 | [diff] [blame] | 580 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); |
| 581 | |
Sven Eckelmann | 3193e8f | 2012-05-12 02:09:42 +0200 | [diff] [blame] | 582 | batadv_mesh_free(soft_iface); |
Simon Wunderlich | 5bc44dc | 2013-01-11 10:19:51 +0100 | [diff] [blame] | 583 | queue_work(batadv_event_workqueue, &bat_priv->cleanup_work); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 584 | } |
| 585 | |
Sven Eckelmann | 04b482a | 2012-05-12 02:09:38 +0200 | [diff] [blame] | 586 | int batadv_softif_is_valid(const struct net_device *net_dev) |
Sven Eckelmann | e44d8fe | 2011-03-04 21:36:41 +0000 | [diff] [blame] | 587 | { |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 588 | if (net_dev->netdev_ops->ndo_start_xmit == batadv_interface_tx) |
Sven Eckelmann | e44d8fe | 2011-03-04 21:36:41 +0000 | [diff] [blame] | 589 | return 1; |
Sven Eckelmann | e44d8fe | 2011-03-04 21:36:41 +0000 | [diff] [blame] | 590 | |
| 591 | return 0; |
| 592 | } |
| 593 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 594 | /* ethtool */ |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 595 | static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 596 | { |
| 597 | cmd->supported = 0; |
| 598 | cmd->advertising = 0; |
David Decotigny | 7073949 | 2011-04-27 18:32:40 +0000 | [diff] [blame] | 599 | ethtool_cmd_speed_set(cmd, SPEED_10); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 600 | cmd->duplex = DUPLEX_FULL; |
| 601 | cmd->port = PORT_TP; |
| 602 | cmd->phy_address = 0; |
| 603 | cmd->transceiver = XCVR_INTERNAL; |
| 604 | cmd->autoneg = AUTONEG_DISABLE; |
| 605 | cmd->maxtxpkt = 0; |
| 606 | cmd->maxrxpkt = 0; |
| 607 | |
| 608 | return 0; |
| 609 | } |
| 610 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 611 | static void batadv_get_drvinfo(struct net_device *dev, |
| 612 | struct ethtool_drvinfo *info) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 613 | { |
Jiri Pirko | 7826d43 | 2013-01-06 00:44:26 +0000 | [diff] [blame] | 614 | strlcpy(info->driver, "B.A.T.M.A.N. advanced", sizeof(info->driver)); |
| 615 | strlcpy(info->version, BATADV_SOURCE_VERSION, sizeof(info->version)); |
| 616 | strlcpy(info->fw_version, "N/A", sizeof(info->fw_version)); |
| 617 | strlcpy(info->bus_info, "batman", sizeof(info->bus_info)); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 618 | } |
| 619 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 620 | static u32 batadv_get_msglevel(struct net_device *dev) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 621 | { |
| 622 | return -EOPNOTSUPP; |
| 623 | } |
| 624 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 625 | static void batadv_set_msglevel(struct net_device *dev, u32 value) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 626 | { |
| 627 | } |
| 628 | |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 629 | static u32 batadv_get_link(struct net_device *dev) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 630 | { |
| 631 | return 1; |
| 632 | } |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 633 | |
| 634 | /* Inspired by drivers/net/ethernet/dlink/sundance.c:1702 |
| 635 | * Declare each description string in struct.name[] to get fixed sized buffer |
| 636 | * and compile time checking for strings longer than ETH_GSTRING_LEN. |
| 637 | */ |
| 638 | static const struct { |
| 639 | const char name[ETH_GSTRING_LEN]; |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 640 | } batadv_counters_strings[] = { |
Marek Lindner | 1c9b055 | 2012-06-23 11:47:53 +0200 | [diff] [blame] | 641 | { "tx" }, |
| 642 | { "tx_bytes" }, |
| 643 | { "tx_dropped" }, |
| 644 | { "rx" }, |
| 645 | { "rx_bytes" }, |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 646 | { "forward" }, |
| 647 | { "forward_bytes" }, |
| 648 | { "mgmt_tx" }, |
| 649 | { "mgmt_tx_bytes" }, |
| 650 | { "mgmt_rx" }, |
| 651 | { "mgmt_rx_bytes" }, |
| 652 | { "tt_request_tx" }, |
| 653 | { "tt_request_rx" }, |
| 654 | { "tt_response_tx" }, |
| 655 | { "tt_response_rx" }, |
| 656 | { "tt_roam_adv_tx" }, |
| 657 | { "tt_roam_adv_rx" }, |
Martin Hundebøll | 4046b24 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 658 | #ifdef CONFIG_BATMAN_ADV_DAT |
| 659 | { "dat_get_tx" }, |
| 660 | { "dat_get_rx" }, |
| 661 | { "dat_put_tx" }, |
| 662 | { "dat_put_rx" }, |
| 663 | { "dat_cached_reply_tx" }, |
| 664 | #endif |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 665 | }; |
| 666 | |
| 667 | static void batadv_get_strings(struct net_device *dev, uint32_t stringset, |
| 668 | uint8_t *data) |
| 669 | { |
| 670 | if (stringset == ETH_SS_STATS) |
Sven Eckelmann | 0294ca0 | 2012-05-16 20:23:15 +0200 | [diff] [blame] | 671 | memcpy(data, batadv_counters_strings, |
| 672 | sizeof(batadv_counters_strings)); |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 673 | } |
| 674 | |
| 675 | static void batadv_get_ethtool_stats(struct net_device *dev, |
| 676 | struct ethtool_stats *stats, |
| 677 | uint64_t *data) |
| 678 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 679 | struct batadv_priv *bat_priv = netdev_priv(dev); |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 680 | int i; |
| 681 | |
Sven Eckelmann | d69909d | 2012-06-03 22:19:20 +0200 | [diff] [blame] | 682 | for (i = 0; i < BATADV_CNT_NUM; i++) |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 683 | data[i] = batadv_sum_counter(bat_priv, i); |
| 684 | } |
| 685 | |
| 686 | static int batadv_get_sset_count(struct net_device *dev, int stringset) |
| 687 | { |
| 688 | if (stringset == ETH_SS_STATS) |
Sven Eckelmann | d69909d | 2012-06-03 22:19:20 +0200 | [diff] [blame] | 689 | return BATADV_CNT_NUM; |
Martin Hundebøll | f821486 | 2012-04-20 17:02:45 +0200 | [diff] [blame] | 690 | |
| 691 | return -EOPNOTSUPP; |
| 692 | } |