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-rw-r--r--net/batman-adv/bat_iv_ogm.c17
-rw-r--r--net/batman-adv/bridge_loop_avoidance.c123
-rw-r--r--net/batman-adv/bridge_loop_avoidance.h11
-rw-r--r--net/batman-adv/distributed-arp-table.c64
-rw-r--r--net/batman-adv/log.h5
-rw-r--r--net/batman-adv/main.c3
-rw-r--r--net/batman-adv/main.h18
-rw-r--r--net/batman-adv/multicast.c12
-rw-r--r--net/batman-adv/routing.c25
-rw-r--r--net/batman-adv/send.c76
-rw-r--r--net/batman-adv/send.h4
-rw-r--r--net/batman-adv/soft-interface.c238
-rw-r--r--net/batman-adv/tp_meter.c7
-rw-r--r--net/batman-adv/translation-table.c42
-rw-r--r--net/batman-adv/types.h6
15 files changed, 413 insertions, 238 deletions
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 71343d0fec94..495ba7cdcb04 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -679,15 +679,11 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
{
struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct batadv_forw_packet *forw_packet_aggr;
+ struct sk_buff *skb;
unsigned char *skb_buff;
unsigned int skb_size;
atomic_t *queue_left = own_packet ? NULL : &bat_priv->batman_queue_left;
- forw_packet_aggr = batadv_forw_packet_alloc(if_incoming, if_outgoing,
- queue_left, bat_priv);
- if (!forw_packet_aggr)
- return;
-
if (atomic_read(&bat_priv->aggregated_ogms) &&
packet_len < BATADV_MAX_AGGREGATION_BYTES)
skb_size = BATADV_MAX_AGGREGATION_BYTES;
@@ -696,9 +692,14 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
skb_size += ETH_HLEN;
- forw_packet_aggr->skb = netdev_alloc_skb_ip_align(NULL, skb_size);
- if (!forw_packet_aggr->skb) {
- batadv_forw_packet_free(forw_packet_aggr, true);
+ skb = netdev_alloc_skb_ip_align(NULL, skb_size);
+ if (!skb)
+ return;
+
+ forw_packet_aggr = batadv_forw_packet_alloc(if_incoming, if_outgoing,
+ queue_left, bat_priv, skb);
+ if (!forw_packet_aggr) {
+ kfree_skb(skb);
return;
}
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index ba8420d8a992..d07e89ec8467 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -395,7 +395,7 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac,
ether_addr_copy(ethhdr->h_source, mac);
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_send_claim(): CLAIM %pM on vid %d\n", mac,
- BATADV_PRINT_VID(vid));
+ batadv_print_vid(vid));
break;
case BATADV_CLAIM_TYPE_UNCLAIM:
/* unclaim frame
@@ -404,7 +404,7 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac,
ether_addr_copy(hw_src, mac);
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_send_claim(): UNCLAIM %pM on vid %d\n", mac,
- BATADV_PRINT_VID(vid));
+ batadv_print_vid(vid));
break;
case BATADV_CLAIM_TYPE_ANNOUNCE:
/* announcement frame
@@ -413,7 +413,7 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac,
ether_addr_copy(hw_src, mac);
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_send_claim(): ANNOUNCE of %pM on vid %d\n",
- ethhdr->h_source, BATADV_PRINT_VID(vid));
+ ethhdr->h_source, batadv_print_vid(vid));
break;
case BATADV_CLAIM_TYPE_REQUEST:
/* request frame
@@ -425,14 +425,14 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac,
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_send_claim(): REQUEST of %pM to %pM on vid %d\n",
ethhdr->h_source, ethhdr->h_dest,
- BATADV_PRINT_VID(vid));
+ batadv_print_vid(vid));
break;
case BATADV_CLAIM_TYPE_LOOPDETECT:
ether_addr_copy(ethhdr->h_source, mac);
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_send_claim(): LOOPDETECT of %pM to %pM on vid %d\n",
ethhdr->h_source, ethhdr->h_dest,
- BATADV_PRINT_VID(vid));
+ batadv_print_vid(vid));
break;
}
@@ -475,9 +475,9 @@ static void batadv_bla_loopdetect_report(struct work_struct *work)
batadv_info(bat_priv->soft_iface,
"Possible loop on VLAN %d detected which can't be handled by BLA - please check your network setup!\n",
- BATADV_PRINT_VID(backbone_gw->vid));
+ batadv_print_vid(backbone_gw->vid));
snprintf(vid_str, sizeof(vid_str), "%d",
- BATADV_PRINT_VID(backbone_gw->vid));
+ batadv_print_vid(backbone_gw->vid));
vid_str[sizeof(vid_str) - 1] = 0;
batadv_throw_uevent(bat_priv, BATADV_UEV_BLA, BATADV_UEV_LOOPDETECT,
@@ -510,7 +510,7 @@ batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, u8 *orig,
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_get_backbone_gw(): not found (%pM, %d), creating new entry\n",
- orig, BATADV_PRINT_VID(vid));
+ orig, batadv_print_vid(vid));
entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
if (!entry)
@@ -719,7 +719,7 @@ static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_add_claim(): adding new entry %pM, vid %d to hash ...\n",
- mac, BATADV_PRINT_VID(vid));
+ mac, batadv_print_vid(vid));
kref_get(&claim->refcount);
hash_added = batadv_hash_add(bat_priv->bla.claim_hash,
@@ -739,8 +739,8 @@ static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
goto claim_free_ref;
batadv_dbg(BATADV_DBG_BLA, bat_priv,
- "bla_add_claim(): changing ownership for %pM, vid %d\n",
- mac, BATADV_PRINT_VID(vid));
+ "bla_add_claim(): changing ownership for %pM, vid %d to gw %pM\n",
+ mac, batadv_print_vid(vid), backbone_gw->orig);
remove_crc = true;
}
@@ -809,7 +809,7 @@ static void batadv_bla_del_claim(struct batadv_priv *bat_priv,
return;
batadv_dbg(BATADV_DBG_BLA, bat_priv, "bla_del_claim(): %pM, vid %d\n",
- mac, BATADV_PRINT_VID(vid));
+ mac, batadv_print_vid(vid));
batadv_hash_remove(bat_priv->bla.claim_hash, batadv_compare_claim,
batadv_choose_claim, claim);
@@ -849,7 +849,7 @@ static bool batadv_handle_announce(struct batadv_priv *bat_priv, u8 *an_addr,
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"handle_announce(): ANNOUNCE vid %d (sent by %pM)... CRC = %#.4x\n",
- BATADV_PRINT_VID(vid), backbone_gw->orig, crc);
+ batadv_print_vid(vid), backbone_gw->orig, crc);
spin_lock_bh(&backbone_gw->crc_lock);
backbone_crc = backbone_gw->crc;
@@ -859,7 +859,7 @@ static bool batadv_handle_announce(struct batadv_priv *bat_priv, u8 *an_addr,
batadv_dbg(BATADV_DBG_BLA, backbone_gw->bat_priv,
"handle_announce(): CRC FAILED for %pM/%d (my = %#.4x, sent = %#.4x)\n",
backbone_gw->orig,
- BATADV_PRINT_VID(backbone_gw->vid),
+ batadv_print_vid(backbone_gw->vid),
backbone_crc, crc);
batadv_bla_send_request(backbone_gw);
@@ -904,7 +904,7 @@ static bool batadv_handle_request(struct batadv_priv *bat_priv,
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"handle_request(): REQUEST vid %d (sent by %pM)...\n",
- BATADV_PRINT_VID(vid), ethhdr->h_source);
+ batadv_print_vid(vid), ethhdr->h_source);
batadv_bla_answer_request(bat_priv, primary_if, vid);
return true;
@@ -941,7 +941,7 @@ static bool batadv_handle_unclaim(struct batadv_priv *bat_priv,
/* this must be an UNCLAIM frame */
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"handle_unclaim(): UNCLAIM %pM on vid %d (sent by %pM)...\n",
- claim_addr, BATADV_PRINT_VID(vid), backbone_gw->orig);
+ claim_addr, batadv_print_vid(vid), backbone_gw->orig);
batadv_bla_del_claim(bat_priv, claim_addr, vid);
batadv_backbone_gw_put(backbone_gw);
@@ -1161,7 +1161,7 @@ static bool batadv_bla_process_claim(struct batadv_priv *bat_priv,
if (ret == 1)
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_process_claim(): received a claim frame from another group. From: %pM on vid %d ...(hw_src %pM, hw_dst %pM)\n",
- ethhdr->h_source, BATADV_PRINT_VID(vid), hw_src,
+ ethhdr->h_source, batadv_print_vid(vid), hw_src,
hw_dst);
if (ret < 2)
@@ -1197,7 +1197,7 @@ static bool batadv_bla_process_claim(struct batadv_priv *bat_priv,
batadv_dbg(BATADV_DBG_BLA, bat_priv,
"bla_process_claim(): ERROR - this looks like a claim frame, but is useless. eth src %pM on vid %d ...(hw_src %pM, hw_dst %pM)\n",
- ethhdr->h_source, BATADV_PRINT_VID(vid), hw_src, hw_dst);
+ ethhdr->h_source, batadv_print_vid(vid), hw_src, hw_dst);
return true;
}
@@ -1295,10 +1295,13 @@ static void batadv_bla_purge_claims(struct batadv_priv *bat_priv,
goto skip;
batadv_dbg(BATADV_DBG_BLA, bat_priv,
- "bla_purge_claims(): %pM, vid %d, time out\n",
- claim->addr, claim->vid);
+ "bla_purge_claims(): timed out.\n");
purge_now:
+ batadv_dbg(BATADV_DBG_BLA, bat_priv,
+ "bla_purge_claims(): %pM, vid %d\n",
+ claim->addr, claim->vid);
+
batadv_handle_unclaim(bat_priv, primary_if,
backbone_gw->orig,
claim->addr, claim->vid);
@@ -1846,6 +1849,13 @@ bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
/* possible optimization: race for a claim */
/* No claim exists yet, claim it for us!
*/
+
+ batadv_dbg(BATADV_DBG_BLA, bat_priv,
+ "bla_rx(): Unclaimed MAC %pM found. Claim it. Local: %s\n",
+ ethhdr->h_source,
+ batadv_is_my_client(bat_priv,
+ ethhdr->h_source, vid) ?
+ "yes" : "no");
batadv_handle_claim(bat_priv, primary_if,
primary_if->net_dev->dev_addr,
ethhdr->h_source, vid);
@@ -1963,10 +1973,22 @@ bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
/* if yes, the client has roamed and we have
* to unclaim it.
*/
- batadv_handle_unclaim(bat_priv, primary_if,
- primary_if->net_dev->dev_addr,
- ethhdr->h_source, vid);
- goto allow;
+ if (batadv_has_timed_out(claim->lasttime, 100)) {
+ /* only unclaim if the last claim entry is
+ * older than 100 ms to make sure we really
+ * have a roaming client here.
+ */
+ batadv_dbg(BATADV_DBG_BLA, bat_priv, "bla_tx(): Roaming client %pM detected. Unclaim it.\n",
+ ethhdr->h_source);
+ batadv_handle_unclaim(bat_priv, primary_if,
+ primary_if->net_dev->dev_addr,
+ ethhdr->h_source, vid);
+ goto allow;
+ } else {
+ batadv_dbg(BATADV_DBG_BLA, bat_priv, "bla_tx(): Race for claim %pM detected. Drop packet.\n",
+ ethhdr->h_source);
+ goto handled;
+ }
}
/* check if it is a multicast/broadcast frame */
@@ -2042,7 +2064,7 @@ int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset)
backbone_crc = backbone_gw->crc;
spin_unlock_bh(&backbone_gw->crc_lock);
seq_printf(seq, " * %pM on %5d by %pM [%c] (%#.4x)\n",
- claim->addr, BATADV_PRINT_VID(claim->vid),
+ claim->addr, batadv_print_vid(claim->vid),
backbone_gw->orig,
(is_own ? 'x' : ' '),
backbone_crc);
@@ -2274,7 +2296,7 @@ int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void *offset)
seq_printf(seq, " * %pM on %5d %4i.%03is (%#.4x)\n",
backbone_gw->orig,
- BATADV_PRINT_VID(backbone_gw->vid), secs,
+ batadv_print_vid(backbone_gw->vid), secs,
msecs, backbone_crc);
}
rcu_read_unlock();
@@ -2449,3 +2471,52 @@ out:
return ret;
}
+
+#ifdef CONFIG_BATMAN_ADV_DAT
+/**
+ * batadv_bla_check_claim - check if address is claimed
+ *
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: mac address of which the claim status is checked
+ * @vid: the VLAN ID
+ *
+ * addr is checked if this address is claimed by the local device itself.
+ *
+ * Return: true if bla is disabled or the mac is claimed by the device,
+ * false if the device addr is already claimed by another gateway
+ */
+bool batadv_bla_check_claim(struct batadv_priv *bat_priv,
+ u8 *addr, unsigned short vid)
+{
+ struct batadv_bla_claim search_claim;
+ struct batadv_bla_claim *claim = NULL;
+ struct batadv_hard_iface *primary_if = NULL;
+ bool ret = true;
+
+ if (!atomic_read(&bat_priv->bridge_loop_avoidance))
+ return ret;
+
+ primary_if = batadv_primary_if_get_selected(bat_priv);
+ if (!primary_if)
+ return ret;
+
+ /* First look if the mac address is claimed */
+ ether_addr_copy(search_claim.addr, addr);
+ search_claim.vid = vid;
+
+ claim = batadv_claim_hash_find(bat_priv, &search_claim);
+
+ /* If there is a claim and we are not owner of the claim,
+ * return false.
+ */
+ if (claim) {
+ if (!batadv_compare_eth(claim->backbone_gw->orig,
+ primary_if->net_dev->dev_addr))
+ ret = false;
+ batadv_claim_put(claim);
+ }
+
+ batadv_hardif_put(primary_if);
+ return ret;
+}
+#endif
diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h
index e157986bd01c..234775748b8e 100644
--- a/net/batman-adv/bridge_loop_avoidance.h
+++ b/net/batman-adv/bridge_loop_avoidance.h
@@ -69,6 +69,10 @@ void batadv_bla_status_update(struct net_device *net_dev);
int batadv_bla_init(struct batadv_priv *bat_priv);
void batadv_bla_free(struct batadv_priv *bat_priv);
int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb);
+#ifdef CONFIG_BATMAN_ADV_DAT
+bool batadv_bla_check_claim(struct batadv_priv *bat_priv, u8 *addr,
+ unsigned short vid);
+#endif
#define BATADV_BLA_CRC_INIT 0
#else /* ifdef CONFIG_BATMAN_ADV_BLA */
@@ -145,6 +149,13 @@ static inline int batadv_bla_backbone_dump(struct sk_buff *msg,
return -EOPNOTSUPP;
}
+static inline
+bool batadv_bla_check_claim(struct batadv_priv *bat_priv, u8 *addr,
+ unsigned short vid)
+{
+ return true;
+}
+
#endif /* ifdef CONFIG_BATMAN_ADV_BLA */
#endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 1bfd1dbc2feb..013e970eff39 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -43,6 +43,7 @@
#include <linux/workqueue.h>
#include <net/arp.h>
+#include "bridge_loop_avoidance.h"
#include "hard-interface.h"
#include "hash.h"
#include "log.h"
@@ -330,7 +331,7 @@ static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
batadv_dbg(BATADV_DBG_DAT, bat_priv,
"Entry updated: %pI4 %pM (vid: %d)\n",
&dat_entry->ip, dat_entry->mac_addr,
- BATADV_PRINT_VID(vid));
+ batadv_print_vid(vid));
goto out;
}
@@ -356,7 +357,7 @@ static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
}
batadv_dbg(BATADV_DBG_DAT, bat_priv, "New entry added: %pI4 %pM (vid: %d)\n",
- &dat_entry->ip, dat_entry->mac_addr, BATADV_PRINT_VID(vid));
+ &dat_entry->ip, dat_entry->mac_addr, batadv_print_vid(vid));
out:
if (dat_entry)
@@ -835,7 +836,7 @@ int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset)
seq_printf(seq, " * %15pI4 %14pM %4i %6i:%02i\n",
&dat_entry->ip, dat_entry->mac_addr,
- BATADV_PRINT_VID(dat_entry->vid),
+ batadv_print_vid(dat_entry->vid),
last_seen_mins, last_seen_secs);
}
rcu_read_unlock();
@@ -1002,6 +1003,7 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
bool ret = false;
struct batadv_dat_entry *dat_entry = NULL;
struct sk_buff *skb_new;
+ struct net_device *soft_iface = bat_priv->soft_iface;
int hdr_size = 0;
unsigned short vid;
@@ -1040,16 +1042,30 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
goto out;
}
+ /* If BLA is enabled, only send ARP replies if we have claimed
+ * the destination for the ARP request or if no one else of
+ * the backbone gws belonging to our backbone has claimed the
+ * destination.
+ */
+ if (!batadv_bla_check_claim(bat_priv,
+ dat_entry->mac_addr, vid)) {
+ batadv_dbg(BATADV_DBG_DAT, bat_priv,
+ "Device %pM claimed by another backbone gw. Don't send ARP reply!",
+ dat_entry->mac_addr);
+ ret = true;
+ goto out;
+ }
+
skb_new = batadv_dat_arp_create_reply(bat_priv, ip_dst, ip_src,
dat_entry->mac_addr,
hw_src, vid);
if (!skb_new)
goto out;
- skb_new->protocol = eth_type_trans(skb_new,
- bat_priv->soft_iface);
- bat_priv->stats.rx_packets++;
- bat_priv->stats.rx_bytes += skb->len + ETH_HLEN + hdr_size;
+ skb_new->protocol = eth_type_trans(skb_new, soft_iface);
+
+ soft_iface->stats.rx_packets++;
+ soft_iface->stats.rx_bytes += skb->len + ETH_HLEN + hdr_size;
netif_rx(skb_new);
batadv_dbg(BATADV_DBG_DAT, bat_priv, "ARP request replied locally\n");
@@ -1188,6 +1204,7 @@ void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
struct sk_buff *skb, int hdr_size)
{
+ struct batadv_dat_entry *dat_entry = NULL;
u16 type;
__be32 ip_src, ip_dst;
u8 *hw_src, *hw_dst;
@@ -1210,12 +1227,41 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
hw_dst = batadv_arp_hw_dst(skb, hdr_size);
ip_dst = batadv_arp_ip_dst(skb, hdr_size);
+ /* If ip_dst is already in cache and has the right mac address,
+ * drop this frame if this ARP reply is destined for us because it's
+ * most probably an ARP reply generated by another node of the DHT.
+ * We have most probably received already a reply earlier. Delivering
+ * this frame would lead to doubled receive of an ARP reply.
+ */
+ dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_src, vid);
+ if (dat_entry && batadv_compare_eth(hw_src, dat_entry->mac_addr)) {
+ batadv_dbg(BATADV_DBG_DAT, bat_priv, "Doubled ARP reply removed: ARP MSG = [src: %pM-%pI4 dst: %pM-%pI4]; dat_entry: %pM-%pI4\n",
+ hw_src, &ip_src, hw_dst, &ip_dst,
+ dat_entry->mac_addr, &dat_entry->ip);
+ dropped = true;
+ goto out;
+ }
+
/* Update our internal cache with both the IP addresses the node got
* within the ARP reply
*/
batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
+ /* If BLA is enabled, only forward ARP replies if we have claimed the
+ * source of the ARP reply or if no one else of the same backbone has
+ * already claimed that client. This prevents that different gateways
+ * to the same backbone all forward the ARP reply leading to multiple
+ * replies in the backbone.
+ */
+ if (!batadv_bla_check_claim(bat_priv, hw_src, vid)) {
+ batadv_dbg(BATADV_DBG_DAT, bat_priv,
+ "Device %pM claimed by another backbone gw. Drop ARP reply.\n",
+ hw_src);
+ dropped = true;
+ goto out;
+ }
+
/* if this REPLY is directed to a client of mine, let's deliver the
* packet to the interface
*/
@@ -1228,6 +1274,8 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
out:
if (dropped)
kfree_skb(skb);
+ if (dat_entry)
+ batadv_dat_entry_put(dat_entry);
/* if dropped == false -> deliver to the interface */
return dropped;
}
@@ -1256,7 +1304,7 @@ bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
/* If this packet is an ARP_REQUEST and the node already has the
* information that it is going to ask, then the packet can be dropped
*/
- if (forw_packet->num_packets)
+ if (batadv_forw_packet_is_rebroadcast(forw_packet))
goto out;
vid = batadv_dat_get_vid(forw_packet->skb, &hdr_size);
diff --git a/net/batman-adv/log.h b/net/batman-adv/log.h
index 7a2b9f4da078..65ce97efa6b5 100644
--- a/net/batman-adv/log.h
+++ b/net/batman-adv/log.h
@@ -73,9 +73,10 @@ __printf(2, 3);
/* possibly ratelimited debug output */
#define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...) \
do { \
- if (atomic_read(&(bat_priv)->log_level) & (type) && \
+ struct batadv_priv *__batpriv = (bat_priv); \
+ if (atomic_read(&__batpriv->log_level) & (type) && \
(!(ratelimited) || net_ratelimit())) \
- batadv_debug_log(bat_priv, fmt, ## arg); \
+ batadv_debug_log(__batpriv, fmt, ## arg); \
} \
while (0)
#else /* !CONFIG_BATMAN_ADV_DEBUG */
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 5000c540614d..fb381fb26a66 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -516,6 +516,9 @@ static void batadv_recv_handler_init(void)
BUILD_BUG_ON(sizeof(struct batadv_tvlv_tt_change) != 12);
BUILD_BUG_ON(sizeof(struct batadv_tvlv_roam_adv) != 8);
+ i = FIELD_SIZEOF(struct sk_buff, cb);
+ BUILD_BUG_ON(sizeof(struct batadv_skb_cb) > i);
+
/* broadcast packet */
batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 57a8103dbce7..810f7d026f54 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -24,7 +24,7 @@
#define BATADV_DRIVER_DEVICE "batman-adv"
#ifndef BATADV_SOURCE_VERSION
-#define BATADV_SOURCE_VERSION "2017.0"
+#define BATADV_SOURCE_VERSION "2017.1"
#endif
/* B.A.T.M.A.N. parameters */
@@ -193,6 +193,7 @@ enum batadv_uev_type {
#include <linux/percpu.h>
#include <linux/types.h>
+#include "packet.h"
#include "types.h"
struct net_device;
@@ -200,8 +201,19 @@ struct packet_type;
struct seq_file;
struct sk_buff;
-#define BATADV_PRINT_VID(vid) (((vid) & BATADV_VLAN_HAS_TAG) ? \
- (int)((vid) & VLAN_VID_MASK) : -1)
+/**
+ * batadv_print_vid - return printable version of vid information
+ * @vid: the VLAN identifier
+ *
+ * Return: -1 when no VLAN is used, VLAN id otherwise
+ */
+static inline int batadv_print_vid(unsigned short vid)
+{
+ if (vid & BATADV_VLAN_HAS_TAG)
+ return (int)(vid & VLAN_VID_MASK);
+ else
+ return -1;
+}
extern struct list_head batadv_hardif_list;
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 952ba81a565b..d327670641ac 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -494,9 +494,8 @@ static bool batadv_mcast_mla_tvlv_update(struct batadv_priv *bat_priv)
if (!bridged)
goto update;
-#if !IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
- pr_warn_once("No bridge IGMP snooping compiled - multicast optimizations disabled\n");
-#endif
+ if (!IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING))
+ pr_warn_once("No bridge IGMP snooping compiled - multicast optimizations disabled\n");
querier4.exists = br_multicast_has_querier_anywhere(dev, ETH_P_IP);
querier4.shadowing = br_multicast_has_querier_adjacent(dev, ETH_P_IP);
@@ -671,7 +670,6 @@ static int batadv_mcast_forw_mode_check_ipv4(struct batadv_priv *bat_priv,
return 0;
}
-#if IS_ENABLED(CONFIG_IPV6)
/**
* batadv_mcast_is_report_ipv6 - check for MLD reports
* @skb: the ethernet frame destined for the mesh
@@ -736,7 +734,6 @@ static int batadv_mcast_forw_mode_check_ipv6(struct batadv_priv *bat_priv,
return 0;
}
-#endif
/**
* batadv_mcast_forw_mode_check - check for optimized forwarding potential
@@ -765,11 +762,12 @@ static int batadv_mcast_forw_mode_check(struct batadv_priv *bat_priv,
case ETH_P_IP:
return batadv_mcast_forw_mode_check_ipv4(bat_priv, skb,
is_unsnoopable);
-#if IS_ENABLED(CONFIG_IPV6)
case ETH_P_IPV6:
+ if (!IS_ENABLED(CONFIG_IPV6))
+ return -EINVAL;
+
return batadv_mcast_forw_mode_check_ipv6(bat_priv, skb,
is_unsnoopable);
-#endif
default:
return -EINVAL;
}
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 7fd740b6e36d..e1ebe14ee2a6 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -941,15 +941,17 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
struct batadv_unicast_packet *unicast_packet;
struct batadv_unicast_4addr_packet *unicast_4addr_packet;
- u8 *orig_addr;
- struct batadv_orig_node *orig_node = NULL;
+ u8 *orig_addr, *orig_addr_gw;
+ struct batadv_orig_node *orig_node = NULL, *orig_node_gw = NULL;
int check, hdr_size = sizeof(*unicast_packet);
enum batadv_subtype subtype;
- bool is4addr;
+ struct ethhdr *ethhdr;
int ret = NET_RX_DROP;
+ bool is4addr, is_gw;
unicast_packet = (struct batadv_unicast_packet *)skb->data;
unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
+ ethhdr = eth_hdr(skb);
is4addr = unicast_packet->packet_type == BATADV_UNICAST_4ADDR;
/* the caller function should have already pulled 2 bytes */
@@ -972,6 +974,23 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
/* packet for me */
if (batadv_is_my_mac(bat_priv, unicast_packet->dest)) {
+ /* If this is a unicast packet from another backgone gw,
+ * drop it.
+ */
+ orig_addr_gw = ethhdr->h_source;
+ orig_node_gw = batadv_orig_hash_find(bat_priv, orig_addr_gw);
+ if (orig_node_gw) {
+ is_gw = batadv_bla_is_backbone_gw(skb, orig_node_gw,
+ hdr_size);
+ batadv_orig_node_put(orig_node_gw);
+ if (is_gw) {
+ batadv_dbg(BATADV_DBG_BLA, bat_priv,
+ "recv_unicast_packet(): Dropped unicast pkt received from another backbone gw %pM.\n",
+ orig_addr_gw);
+ return NET_RX_DROP;
+ }
+ }
+
if (is4addr) {
subtype = unicast_4addr_packet->subtype;
batadv_dat_inc_counter(bat_priv, subtype);
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 1489ec27daff..403df596a73d 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -482,6 +482,7 @@ void batadv_forw_packet_free(struct batadv_forw_packet *forw_packet,
* @if_outgoing: The (optional) if_outgoing to be grabbed
* @queue_left: The (optional) queue counter to decrease
* @bat_priv: The bat_priv for the mesh of this forw_packet
+ * @skb: The raw packet this forwarding packet shall contain
*
* Allocates a forwarding packet and tries to get a reference to the
* (optional) if_incoming, if_outgoing and queue_left. If queue_left
@@ -493,7 +494,8 @@ struct batadv_forw_packet *
batadv_forw_packet_alloc(struct batadv_hard_iface *if_incoming,
struct batadv_hard_iface *if_outgoing,
atomic_t *queue_left,
- struct batadv_priv *bat_priv)
+ struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
{
struct batadv_forw_packet *forw_packet;
const char *qname;
@@ -525,7 +527,7 @@ batadv_forw_packet_alloc(struct batadv_hard_iface *if_incoming,
INIT_HLIST_NODE(&forw_packet->list);
INIT_HLIST_NODE(&forw_packet->cleanup_list);
- forw_packet->skb = NULL;
+ forw_packet->skb = skb;
forw_packet->queue_left = queue_left;
forw_packet->if_incoming = if_incoming;
forw_packet->if_outgoing = if_outgoing;
@@ -756,22 +758,23 @@ int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
if (!primary_if)
goto err;
+ newskb = skb_copy(skb, GFP_ATOMIC);
+ if (!newskb) {
+ batadv_hardif_put(primary_if);
+ goto err;
+ }
+
forw_packet = batadv_forw_packet_alloc(primary_if, NULL,
&bat_priv->bcast_queue_left,
- bat_priv);
+ bat_priv, newskb);
batadv_hardif_put(primary_if);
if (!forw_packet)
- goto err;
-
- newskb = skb_copy(skb, GFP_ATOMIC);
- if (!newskb)
goto err_packet_free;
/* as we have a copy now, it is safe to decrease the TTL */
bcast_packet = (struct batadv_bcast_packet *)newskb->data;
bcast_packet->ttl--;
- forw_packet->skb = newskb;
forw_packet->own = own_packet;
INIT_DELAYED_WORK(&forw_packet->delayed_work,
@@ -781,11 +784,60 @@ int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
return NETDEV_TX_OK;
err_packet_free:
- batadv_forw_packet_free(forw_packet, true);
+ kfree_skb(newskb);
err:
return NETDEV_TX_BUSY;
}
+/**
+ * batadv_forw_packet_bcasts_left - check if a retransmission is necessary
+ * @forw_packet: the forwarding packet to check
+ * @hard_iface: the interface to check on
+ *
+ * Checks whether a given packet has any (re)transmissions left on the provided
+ * interface.
+ *
+ * hard_iface may be NULL: In that case the number of transmissions this skb had
+ * so far is compared with the maximum amount of retransmissions independent of
+ * any interface instead.
+ *
+ * Return: True if (re)transmissions are left, false otherwise.
+ */
+static bool
+batadv_forw_packet_bcasts_left(struct batadv_forw_packet *forw_packet,
+ struct batadv_hard_iface *hard_iface)
+{
+ unsigned int max;
+
+ if (hard_iface)
+ max = hard_iface->num_bcasts;
+ else
+ max = BATADV_NUM_BCASTS_MAX;
+
+ return BATADV_SKB_CB(forw_packet->skb)->num_bcasts < max;
+}
+
+/**
+ * batadv_forw_packet_bcasts_inc - increment retransmission counter of a packet
+ * @forw_packet: the packet to increase the counter for
+ */
+static void
+batadv_forw_packet_bcasts_inc(struct batadv_forw_packet *forw_packet)
+{
+ BATADV_SKB_CB(forw_packet->skb)->num_bcasts++;
+}
+
+/**
+ * batadv_forw_packet_is_rebroadcast - check packet for previous transmissions
+ * @forw_packet: the packet to check
+ *
+ * Return: True if this packet was transmitted before, false otherwise.
+ */
+bool batadv_forw_packet_is_rebroadcast(struct batadv_forw_packet *forw_packet)
+{
+ return BATADV_SKB_CB(forw_packet->skb)->num_bcasts > 0;
+}
+
static void batadv_send_outstanding_bcast_packet(struct work_struct *work)
{
struct batadv_hard_iface *hard_iface;
@@ -826,7 +878,7 @@ static void batadv_send_outstanding_bcast_packet(struct work_struct *work)
if (hard_iface->soft_iface != soft_iface)
continue;
- if (forw_packet->num_packets >= hard_iface->num_bcasts)
+ if (!batadv_forw_packet_bcasts_left(forw_packet, hard_iface))
continue;
if (forw_packet->own) {
@@ -884,10 +936,10 @@ static void batadv_send_outstanding_bcast_packet(struct work_struct *work)
}
rcu_read_unlock();
- forw_packet->num_packets++;
+ batadv_forw_packet_bcasts_inc(forw_packet);
/* if we still have some more bcasts to send */
- if (forw_packet->num_packets < BATADV_NUM_BCASTS_MAX) {
+ if (batadv_forw_packet_bcasts_left(forw_packet, NULL)) {
batadv_forw_packet_bcast_queue(bat_priv, forw_packet,
send_time);
return;
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h
index f21166d10323..a16b34f473ef 100644
--- a/net/batman-adv/send.h
+++ b/net/batman-adv/send.h
@@ -34,11 +34,13 @@ struct batadv_forw_packet *
batadv_forw_packet_alloc(struct batadv_hard_iface *if_incoming,
struct batadv_hard_iface *if_outgoing,
atomic_t *queue_left,
- struct batadv_priv *bat_priv);
+ struct batadv_priv *bat_priv,
+ struct sk_buff *skb);
bool batadv_forw_packet_steal(struct batadv_forw_packet *packet, spinlock_t *l);
void batadv_forw_packet_ogmv1_queue(struct batadv_priv *bat_priv,
struct batadv_forw_packet *forw_packet,
unsigned long send_time);
+bool batadv_forw_packet_is_rebroadcast(struct batadv_forw_packet *forw_packet);
int batadv_send_skb_to_orig(struct sk_buff *skb,
struct batadv_orig_node *orig_node,
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index d042c99af028..b25789abf7b9 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -64,28 +64,6 @@
#include "sysfs.h"
#include "translation-table.h"
-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 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,
-};
-
int batadv_skb_head_push(struct sk_buff *skb, unsigned int len)
{
int result;
@@ -140,7 +118,7 @@ static u64 batadv_sum_counter(struct batadv_priv *bat_priv, size_t idx)
static struct net_device_stats *batadv_interface_stats(struct net_device *dev)
{
struct batadv_priv *bat_priv = netdev_priv(dev);
- struct net_device_stats *stats = &bat_priv->stats;
+ struct net_device_stats *stats = &dev->stats;
stats->tx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_TX);
stats->tx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_TX_BYTES);
@@ -230,6 +208,9 @@ static int batadv_interface_tx(struct sk_buff *skb,
if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
goto dropped;
+ /* reset control block to avoid left overs from previous users */
+ memset(skb->cb, 0, sizeof(struct batadv_skb_cb));
+
netif_trans_update(soft_iface);
vid = batadv_get_vid(skb, 0);
ethhdr = eth_hdr(skb);
@@ -947,6 +928,98 @@ static const struct net_device_ops batadv_netdev_ops = {
.ndo_del_slave = batadv_softif_slave_del,
};
+static void batadv_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ strlcpy(info->driver, "B.A.T.M.A.N. advanced", sizeof(info->driver));
+ strlcpy(info->version, BATADV_SOURCE_VERSION, sizeof(info->version));
+ strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
+ strlcpy(info->bus_info, "batman", sizeof(info->bus_info));
+}
+
+/* Inspired by drivers/net/ethernet/dlink/sundance.c:1702
+ * Declare each description string in struct.name[] to get fixed sized buffer
+ * and compile time checking for strings longer than ETH_GSTRING_LEN.
+ */
+static const struct {
+ const char name[ETH_GSTRING_LEN];
+} batadv_counters_strings[] = {
+ { "tx" },
+ { "tx_bytes" },
+ { "tx_dropped" },
+ { "rx" },
+ { "rx_bytes" },
+ { "forward" },
+ { "forward_bytes" },
+ { "mgmt_tx" },
+ { "mgmt_tx_bytes" },
+ { "mgmt_rx" },
+ { "mgmt_rx_bytes" },
+ { "frag_tx" },
+ { "frag_tx_bytes" },
+ { "frag_rx" },
+ { "frag_rx_bytes" },
+ { "frag_fwd" },
+ { "frag_fwd_bytes" },
+ { "tt_request_tx" },
+ { "tt_request_rx" },
+ { "tt_response_tx" },
+ { "tt_response_rx" },
+ { "tt_roam_adv_tx" },
+ { "tt_roam_adv_rx" },
+#ifdef CONFIG_BATMAN_ADV_DAT
+ { "dat_get_tx" },
+ { "dat_get_rx" },
+ { "dat_put_tx" },
+ { "dat_put_rx" },
+ { "dat_cached_reply_tx" },
+#endif
+#ifdef CONFIG_BATMAN_ADV_NC
+ { "nc_code" },
+ { "nc_code_bytes" },
+ { "nc_recode" },
+ { "nc_recode_bytes" },
+ { "nc_buffer" },
+ { "nc_decode" },
+ { "nc_decode_bytes" },
+ { "nc_decode_failed" },
+ { "nc_sniffed" },
+#endif
+};
+
+static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ if (stringset == ETH_SS_STATS)
+ memcpy(data, batadv_counters_strings,
+ sizeof(batadv_counters_strings));
+}
+
+static void batadv_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct batadv_priv *bat_priv = netdev_priv(dev);
+ int i;
+
+ for (i = 0; i < BATADV_CNT_NUM; i++)
+ data[i] = batadv_sum_counter(bat_priv, i);
+}
+
+static int batadv_get_sset_count(struct net_device *dev, int stringset)
+{
+ if (stringset == ETH_SS_STATS)
+ return BATADV_CNT_NUM;
+
+ return -EOPNOTSUPP;
+}
+
+static const struct ethtool_ops batadv_ethtool_ops = {
+ .get_drvinfo = batadv_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_strings = batadv_get_strings,
+ .get_ethtool_stats = batadv_get_ethtool_stats,
+ .get_sset_count = batadv_get_sset_count,
+};
+
/**
* batadv_softif_free - Deconstructor of batadv_soft_interface
* @dev: Device to cleanup and remove
@@ -971,8 +1044,6 @@ static void batadv_softif_free(struct net_device *dev)
*/
static void batadv_softif_init_early(struct net_device *dev)
{
- struct batadv_priv *priv = netdev_priv(dev);
-
ether_setup(dev);
dev->netdev_ops = &batadv_netdev_ops;
@@ -989,8 +1060,6 @@ static void batadv_softif_init_early(struct net_device *dev)
eth_hw_addr_random(dev);
dev->ethtool_ops = &batadv_ethtool_ops;
-
- memset(priv, 0, sizeof(*priv));
}
struct net_device *batadv_softif_create(struct net *net, const char *name)
@@ -1083,118 +1152,3 @@ struct rtnl_link_ops batadv_link_ops __read_mostly = {
.setup = batadv_softif_init_early,
.dellink = batadv_softif_destroy_netlink,
};
-
-/* ethtool */
-static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- cmd->supported = 0;
- cmd->advertising = 0;
- ethtool_cmd_speed_set(cmd, 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 batadv_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- strlcpy(info->driver, "B.A.T.M.A.N. advanced", sizeof(info->driver));
- strlcpy(info->version, BATADV_SOURCE_VERSION, sizeof(info->version));
- strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
- strlcpy(info->bus_info, "batman", sizeof(info->bus_info));
-}
-
-static u32 batadv_get_msglevel(struct net_device *dev)
-{
- return -EOPNOTSUPP;
-}
-
-static void batadv_set_msglevel(struct net_device *dev, u32 value)
-{
-}
-
-static u32 batadv_get_link(struct net_device *dev)
-{
- return 1;
-}
-
-/* Inspired by drivers/net/ethernet/dlink/sundance.c:1702
- * Declare each description string in struct.name[] to get fixed sized buffer
- * and compile time checking for strings longer than ETH_GSTRING_LEN.
- */
-static const struct {
- const char name[ETH_GSTRING_LEN];
-} batadv_counters_strings[] = {
- { "tx" },
- { "tx_bytes" },
- { "tx_dropped" },
- { "rx" },
- { "rx_bytes" },
- { "forward" },
- { "forward_bytes" },
- { "mgmt_tx" },
- { "mgmt_tx_bytes" },
- { "mgmt_rx" },
- { "mgmt_rx_bytes" },
- { "frag_tx" },
- { "frag_tx_bytes" },
- { "frag_rx" },
- { "frag_rx_bytes" },
- { "frag_fwd" },
- { "frag_fwd_bytes" },
- { "tt_request_tx" },
- { "tt_request_rx" },
- { "tt_response_tx" },
- { "tt_response_rx" },
- { "tt_roam_adv_tx" },
- { "tt_roam_adv_rx" },
-#ifdef CONFIG_BATMAN_ADV_DAT
- { "dat_get_tx" },
- { "dat_get_rx" },
- { "dat_put_tx" },
- { "dat_put_rx" },
- { "dat_cached_reply_tx" },
-#endif
-#ifdef CONFIG_BATMAN_ADV_NC
- { "nc_code" },
- { "nc_code_bytes" },
- { "nc_recode" },
- { "nc_recode_bytes" },
- { "nc_buffer" },
- { "nc_decode" },
- { "nc_decode_bytes" },
- { "nc_decode_failed" },
- { "nc_sniffed" },
-#endif
-};
-
-static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data)
-{
- if (stringset == ETH_SS_STATS)
- memcpy(data, batadv_counters_strings,
- sizeof(batadv_counters_strings));
-}
-
-static void batadv_get_ethtool_stats(struct net_device *dev,
- struct ethtool_stats *stats, u64 *data)
-{
- struct batadv_priv *bat_priv = netdev_priv(dev);
- int i;
-
- for (i = 0; i < BATADV_CNT_NUM; i++)
- data[i] = batadv_sum_counter(bat_priv, i);
-}
-
-static int batadv_get_sset_count(struct net_device *dev, int stringset)
-{
- if (stringset == ETH_SS_STATS)
- return BATADV_CNT_NUM;
-
- return -EOPNOTSUPP;
-}
diff --git a/net/batman-adv/tp_meter.c b/net/batman-adv/tp_meter.c
index c94ebdecdc3d..556f9a865ddf 100644
--- a/net/batman-adv/tp_meter.c
+++ b/net/batman-adv/tp_meter.c
@@ -873,8 +873,8 @@ static int batadv_tp_send(void *arg)
/* something went wrong during the preparation/transmission */
if (unlikely(err && err != BATADV_TP_REASON_CANT_SEND)) {
batadv_dbg(BATADV_DBG_TP_METER, bat_priv,
- "Meter: batadv_tp_send() cannot send packets (%d)\n",
- err);
+ "Meter: %s() cannot send packets (%d)\n",
+ __func__, err);
/* ensure nobody else tries to stop the thread now */
if (atomic_dec_and_test(&tp_vars->sending))
tp_vars->reason = err;
@@ -979,7 +979,8 @@ void batadv_tp_start(struct batadv_priv *bat_priv, const u8 *dst,
if (!tp_vars) {
spin_unlock_bh(&bat_priv->tp_list_lock);
batadv_dbg(BATADV_DBG_TP_METER, bat_priv,
- "Meter: batadv_tp_start cannot allocate list elements\n");
+ "Meter: %s cannot allocate list elements\n",
+ __func__);
batadv_tp_batctl_error_notify(BATADV_TP_REASON_MEMORY_ERROR,
dst, bat_priv, session_cookie);
return;
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 6077a87d46f0..e75b4937b497 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -617,7 +617,7 @@ static void batadv_tt_global_free(struct batadv_priv *bat_priv,
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Deleting global tt entry %pM (vid: %d): %s\n",
tt_global->common.addr,
- BATADV_PRINT_VID(tt_global->common.vid), message);
+ batadv_print_vid(tt_global->common.vid), message);
batadv_hash_remove(bat_priv->tt.global_hash, batadv_compare_tt,
batadv_choose_tt, &tt_global->common);
@@ -671,7 +671,7 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
if (tt_local->common.flags & BATADV_TT_CLIENT_PENDING) {
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Re-adding pending client %pM (vid: %d)\n",
- addr, BATADV_PRINT_VID(vid));
+ addr, batadv_print_vid(vid));
/* whatever the reason why the PENDING flag was set,
* this is a client which was enqueued to be removed in
* this orig_interval. Since it popped up again, the
@@ -684,7 +684,7 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
if (tt_local->common.flags & BATADV_TT_CLIENT_ROAM) {
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Roaming client %pM (vid: %d) came back to its original location\n",
- addr, BATADV_PRINT_VID(vid));
+ addr, batadv_print_vid(vid));
/* the ROAM flag is set because this client roamed away
* and the node got a roaming_advertisement message. Now
* that the client popped up again at its original
@@ -716,7 +716,7 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
if (!vlan) {
net_ratelimited_function(batadv_info, soft_iface,
"adding TT local entry %pM to non-existent VLAN %d\n",
- addr, BATADV_PRINT_VID(vid));
+ addr, batadv_print_vid(vid));
kmem_cache_free(batadv_tl_cache, tt_local);
tt_local = NULL;
goto out;
@@ -724,7 +724,7 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Creating new local tt entry: %pM (vid: %d, ttvn: %d)\n",
- addr, BATADV_PRINT_VID(vid),
+ addr, batadv_print_vid(vid),
(u8)atomic_read(&bat_priv->tt.vn));
ether_addr_copy(tt_local->common.addr, addr);
@@ -1097,7 +1097,7 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
seq_printf(seq,
" * %pM %4i [%c%c%c%c%c%c] %3u.%03u (%#.8x)\n",
tt_common_entry->addr,
- BATADV_PRINT_VID(tt_common_entry->vid),
+ batadv_print_vid(tt_common_entry->vid),
((tt_common_entry->flags &
BATADV_TT_CLIENT_ROAM) ? 'R' : '.'),
no_purge ? 'P' : '.',
@@ -1296,7 +1296,7 @@ batadv_tt_local_set_pending(struct batadv_priv *bat_priv,
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Local tt entry (%pM, vid: %d) pending to be removed: %s\n",
tt_local_entry->common.addr,
- BATADV_PRINT_VID(tt_local_entry->common.vid), message);
+ batadv_print_vid(tt_local_entry->common.vid), message);
}
/**
@@ -1727,7 +1727,7 @@ add_orig_entry:
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Creating new global tt entry: %pM (vid: %d, via %pM)\n",
- common->addr, BATADV_PRINT_VID(common->vid),
+ common->addr, batadv_print_vid(common->vid),
orig_node->orig);
ret = true;
@@ -1835,7 +1835,7 @@ batadv_tt_global_print_entry(struct batadv_priv *bat_priv,
if (!vlan) {
seq_printf(seq,
" * Cannot retrieve VLAN %d for originator %pM\n",
- BATADV_PRINT_VID(tt_common_entry->vid),
+ batadv_print_vid(tt_common_entry->vid),
best_entry->orig_node->orig);
goto print_list;
}
@@ -1844,7 +1844,7 @@ batadv_tt_global_print_entry(struct batadv_priv *bat_priv,
seq_printf(seq,
" %c %pM %4i (%3u) via %pM (%3u) (%#.8x) [%c%c%c%c]\n",
'*', tt_global_entry->common.addr,
- BATADV_PRINT_VID(tt_global_entry->common.vid),
+ batadv_print_vid(tt_global_entry->common.vid),
best_entry->ttvn, best_entry->orig_node->orig,
last_ttvn, vlan->tt.crc,
((flags & BATADV_TT_CLIENT_ROAM) ? 'R' : '.'),
@@ -1867,7 +1867,7 @@ print_list:
if (!vlan) {
seq_printf(seq,
" + Cannot retrieve VLAN %d for originator %pM\n",
- BATADV_PRINT_VID(tt_common_entry->vid),
+ batadv_print_vid(tt_common_entry->vid),
orig_entry->orig_node->orig);
continue;
}
@@ -1876,7 +1876,7 @@ print_list:
seq_printf(seq,
" %c %pM %4d (%3u) via %pM (%3u) (%#.8x) [%c%c%c%c]\n",
'+', tt_global_entry->common.addr,
- BATADV_PRINT_VID(tt_global_entry->common.vid),
+ batadv_print_vid(tt_global_entry->common.vid),
orig_entry->ttvn, orig_entry->orig_node->orig,
last_ttvn, vlan->tt.crc,
((flags & BATADV_TT_CLIENT_ROAM) ? 'R' : '.'),
@@ -2213,7 +2213,7 @@ batadv_tt_global_del_orig_node(struct batadv_priv *bat_priv,
"Deleting %pM from global tt entry %pM (vid: %d): %s\n",
orig_node->orig,
tt_global_entry->common.addr,
- BATADV_PRINT_VID(vid), message);
+ batadv_print_vid(vid), message);
_batadv_tt_global_del_orig_entry(tt_global_entry,
orig_entry);
}
@@ -2253,12 +2253,13 @@ batadv_tt_global_del_roaming(struct batadv_priv *bat_priv,
/* its the last one, mark for roaming. */
tt_global_entry->common.flags |= BATADV_TT_CLIENT_ROAM;
tt_global_entry->roam_at = jiffies;
- } else
+ } else {
/* there is another entry, we can simply delete this
* one and can still use the other one.
*/
batadv_tt_global_del_orig_node(bat_priv, tt_global_entry,
orig_node, message);
+ }
}
/**
@@ -2314,10 +2315,11 @@ static void batadv_tt_global_del(struct batadv_priv *bat_priv,
/* local entry exists, case 2: client roamed to us. */
batadv_tt_global_del_orig_list(tt_global_entry);
batadv_tt_global_free(bat_priv, tt_global_entry, message);
- } else
+ } else {
/* no local entry exists, case 1: check for roaming */
batadv_tt_global_del_roaming(bat_priv, tt_global_entry,
orig_node, message);
+ }
out:
if (tt_global_entry)
@@ -2375,7 +2377,7 @@ void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Deleting global tt entry %pM (vid: %d): %s\n",
tt_global->common.addr,
- BATADV_PRINT_VID(vid), message);
+ batadv_print_vid(vid), message);
hlist_del_rcu(&tt_common_entry->hash_entry);
batadv_tt_global_entry_put(tt_global);
}
@@ -2435,7 +2437,7 @@ static void batadv_tt_global_purge(struct batadv_priv *bat_priv)
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Deleting global tt entry %pM (vid: %d): %s\n",
tt_global->common.addr,
- BATADV_PRINT_VID(tt_global->common.vid),
+ batadv_print_vid(tt_global->common.vid),
msg);
hlist_del_rcu(&tt_common->hash_entry);
@@ -3650,7 +3652,7 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, u8 *client,
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Sending ROAMING_ADV to %pM (client %pM, vid: %d)\n",
- orig_node->orig, client, BATADV_PRINT_VID(vid));
+ orig_node->orig, client, batadv_print_vid(vid));
batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_TX);
@@ -3773,7 +3775,7 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Deleting local tt entry (%pM, vid: %d): pending\n",
tt_common->addr,
- BATADV_PRINT_VID(tt_common->vid));
+ batadv_print_vid(tt_common->vid));
batadv_tt_local_size_dec(bat_priv, tt_common->vid);
hlist_del_rcu(&tt_common->hash_entry);
@@ -4017,7 +4019,7 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
batadv_dbg(BATADV_DBG_TT, bat_priv,
"Added temporary global client (addr: %pM, vid: %d, orig: %pM)\n",
- addr, BATADV_PRINT_VID(vid), orig_node->orig);
+ addr, batadv_print_vid(vid), orig_node->orig);
ret = true;
out:
return ret;
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 246f21b4973b..ea43a6449247 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -1000,7 +1000,6 @@ struct batadv_priv_bat_v {
* struct batadv_priv - per mesh interface data
* @mesh_state: current status of the mesh (inactive/active/deactivating)
* @soft_iface: net device which holds this struct as private data
- * @stats: structure holding the data for the ndo_get_stats() call
* @bat_counters: mesh internal traffic statistic counters (see batadv_counters)
* @aggregated_ogms: bool indicating whether OGM aggregation is enabled
* @bonding: bool indicating whether traffic bonding is enabled
@@ -1055,7 +1054,6 @@ struct batadv_priv_bat_v {
struct batadv_priv {
atomic_t mesh_state;
struct net_device *soft_iface;
- struct net_device_stats stats;
u64 __percpu *bat_counters; /* Per cpu counters */
atomic_t aggregated_ogms;
atomic_t bonding;
@@ -1377,9 +1375,11 @@ struct batadv_nc_packet {
* relevant to batman-adv in the skb->cb buffer in skbs.
* @decoded: Marks a skb as decoded, which is checked when searching for coding
* opportunities in network-coding.c
+ * @num_bcasts: Counter for broadcast packet retransmissions
*/
struct batadv_skb_cb {
bool decoded;
+ unsigned int num_bcasts;
};
/**
@@ -1392,7 +1392,7 @@ struct batadv_skb_cb {
* @skb: bcast packet's skb buffer
* @packet_len: size of aggregated OGM packet inside the skb buffer
* @direct_link_flags: direct link flags for aggregated OGM packets
- * @num_packets: counter for bcast packet retransmission
+ * @num_packets: counter for aggregated OGMv1 packets
* @delayed_work: work queue callback item for packet sending
* @if_incoming: pointer to incoming hard-iface or primary iface if
* locally generated packet
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 10:37:09 +0000