@@ -123,13 +123,13 @@ static void claim_free_ref(struct claim *claim)
call_rcu(&claim->rcu, claim_free_rcu);
}
-/* @bat_priv: the bat priv with all the soft interface information
+/**
+ * @bat_priv: the bat priv with all the soft interface information
* @data: search data (may be local/static data)
*
* looks for a claim in the hash, and returns it if found
* or NULL otherwise.
*/
-
static struct claim *claim_hash_find(struct bat_priv *bat_priv,
struct claim *data)
{
@@ -162,14 +162,14 @@ static struct claim *claim_hash_find(struct bat_priv *bat_priv,
return claim_tmp;
}
-/* @bat_priv: the bat priv with all the soft interface information
+/**
+ * @bat_priv: the bat priv with all the soft interface information
* @addr: the address of the originator
* @vid: the VLAN ID
*
* looks for a claim in the hash, and returns it if found
* or NULL otherwise.
*/
-
static struct backbone_gw *backbone_hash_find(struct bat_priv *bat_priv,
uint8_t *addr, short vid)
{
@@ -241,14 +241,14 @@ static void bla_del_backbone_claims(struct backbone_gw *backbone_gw)
backbone_gw->crc = BLA_CRC_INIT;
}
-/* @bat_priv: the bat priv with all the soft interface information
+/**
+ * @bat_priv: the bat priv with all the soft interface information
* @orig: the mac address to be announced within the claim
* @vid: the VLAN ID
* @claimtype: the type of the claim (CLAIM, UNCLAIM, ANNOUNCE, ...)
*
* sends a claim frame according to the provided info.
*/
-
static void bla_send_claim(struct bat_priv *bat_priv, uint8_t *mac,
short vid, int claimtype)
{
@@ -282,7 +282,8 @@ static void bla_send_claim(struct bat_priv *bat_priv, uint8_t *mac,
primary_if->net_dev->dev_addr,
/* HW DST: FF:43:05:XX:00:00
* with XX = claim type
- * and YY:YY = group id */
+ * and YY:YY = group id
+ */
(uint8_t *)&local_claim_dest);
if (!skb)
@@ -294,8 +295,7 @@ static void bla_send_claim(struct bat_priv *bat_priv, uint8_t *mac,
/* now we pretend that the client would have sent this ... */
switch (claimtype) {
case CLAIM_TYPE_ADD:
- /*
- * normal claim frame
+ /* normal claim frame
* set Ethernet SRC to the clients mac
*/
memcpy(ethhdr->h_source, mac, ETH_ALEN);
@@ -303,8 +303,7 @@ static void bla_send_claim(struct bat_priv *bat_priv, uint8_t *mac,
"bla_send_claim(): CLAIM %pM on vid %d\n", mac, vid);
break;
case CLAIM_TYPE_DEL:
- /*
- * unclaim frame
+ /* unclaim frame
* set HW SRC to the clients mac
*/
memcpy(hw_src, mac, ETH_ALEN);
@@ -312,8 +311,7 @@ static void bla_send_claim(struct bat_priv *bat_priv, uint8_t *mac,
"bla_send_claim(): UNCLAIM %pM on vid %d\n", mac, vid);
break;
case CLAIM_TYPE_ANNOUNCE:
- /*
- * announcement frame
+ /* announcement frame
* set HW SRC to the special mac containg the crc
*/
memcpy(hw_src, mac, ETH_ALEN);
@@ -322,8 +320,7 @@ static void bla_send_claim(struct bat_priv *bat_priv, uint8_t *mac,
ethhdr->h_source, vid);
break;
case CLAIM_TYPE_REQUEST:
- /*
- * request frame
+ /* request frame
* set HW SRC to the special mac containg the crc
*/
memcpy(hw_src, mac, ETH_ALEN);
@@ -350,14 +347,14 @@ out:
hardif_free_ref(primary_if);
}
-/* @bat_priv: the bat priv with all the soft interface information
+/**
+ * @bat_priv: the bat priv with all the soft interface information
* @orig: the mac address of the originator
* @vid: the VLAN ID
*
* searches for the backbone gw or creates a new one if it could not
* be found.
*/
-
static struct backbone_gw *bla_get_backbone_gw(struct bat_priv *bat_priv,
uint8_t *orig, short vid)
{
@@ -425,13 +422,13 @@ static void bla_update_own_backbone_gw(struct bat_priv *bat_priv,
backbone_gw_free_ref(backbone_gw);
}
-/* @bat_priv: the bat priv with all the soft interface information
+/**
+ * @bat_priv: the bat priv with all the soft interface information
* @vid: the vid where the request came on
*
* Repeat all of our own claims, and finally send an ANNOUNCE frame
* to allow the requester another check if the CRC is correct now.
*/
-
static void bla_answer_request(struct bat_priv *bat_priv,
struct hard_iface *primary_if, short vid)
{
@@ -471,13 +468,13 @@ static void bla_answer_request(struct bat_priv *bat_priv,
backbone_gw_free_ref(backbone_gw);
}
-/* @backbone_gw: the backbone gateway from whom we are out of sync
+/**
+ * @backbone_gw: the backbone gateway from whom we are out of sync
*
* When the crc is wrong, ask the backbone gateway for a full table update.
* After the request, it will repeat all of his own claims and finally
* send an announcement claim with which we can check again.
*/
-
static void bla_send_request(struct backbone_gw *backbone_gw)
{
/* first, remove all old entries */
@@ -498,7 +495,8 @@ static void bla_send_request(struct backbone_gw *backbone_gw)
}
}
-/* @bat_priv: the bat priv with all the soft interface information
+/**
+ * @bat_priv: the bat priv with all the soft interface information
* @backbone_gw: our backbone gateway which should be announced
*
* This function sends an announcement. It is called from multiple
@@ -518,14 +516,14 @@ static void bla_send_announce(struct bat_priv *bat_priv,
}
-/* @bat_priv: the bat priv with all the soft interface information
+/**
+ * @bat_priv: the bat priv with all the soft interface information
* @mac: the mac address of the claim
* @vid: the VLAN ID of the frame
* @backbone_gw: the backbone gateway which claims it
*
* Adds a claim in the claim hash.
*/
-
static void bla_add_claim(struct bat_priv *bat_priv, const uint8_t *mac,
const short vid, struct backbone_gw *backbone_gw)
{
@@ -644,7 +642,8 @@ static int handle_announce(struct bat_priv *bat_priv,
bla_send_request(backbone_gw);
} else {
/* if we have sent a request and the crc was OK,
- * we can allow traffic again. */
+ * we can allow traffic again.
+ */
if (atomic_read(&backbone_gw->request_sent)) {
atomic_dec(&backbone_gw->bat_priv->bla_num_requests);
atomic_set(&backbone_gw->request_sent, 0);
@@ -666,7 +665,8 @@ static int handle_request(struct bat_priv *bat_priv,
return 0;
/* sanity check, this should not happen on a normal switch,
- * we ignore it in this case. */
+ * we ignore it in this case.
+ */
if (!compare_eth(ethhdr->h_dest, primary_if->net_dev->dev_addr))
return 1;
@@ -732,7 +732,6 @@ static int handle_claim(struct bat_priv *bat_priv,
}
/**
- *
* @bat_priv: the bat priv with all the soft interface information
* @hw_src: the Hardware source in the ARP Header
* @hw_dst: the Hardware destination in the ARP Header
@@ -765,7 +764,8 @@ static int check_claim_group(struct bat_priv *bat_priv,
return 0;
/* if announcement packet, use the source,
- * otherwise assume it is in the hw_src */
+ * otherwise assume it is in the hw_src
+ */
switch (bla_dst->type) {
case CLAIM_TYPE_ADD:
backbone_addr = hw_src;
@@ -791,7 +791,8 @@ static int check_claim_group(struct bat_priv *bat_priv,
orig_node = orig_hash_find(bat_priv, backbone_addr);
/* dont accept claims from gateways which are not in
- * the same mesh or group. */
+ * the same mesh or group.
+ */
if (!orig_node)
return 1;
@@ -809,7 +810,8 @@ static int check_claim_group(struct bat_priv *bat_priv,
}
-/* @bat_priv: the bat priv with all the soft interface information
+/**
+ * @bat_priv: the bat priv with all the soft interface information
* @skb: the frame to be checked
*
* Check if this is a claim frame, and process it accordingly.
@@ -817,7 +819,6 @@ static int check_claim_group(struct bat_priv *bat_priv,
* returns 1 if it was a claim frame, otherwise return 0 to
* tell the callee that it can use the frame on its own.
*/
-
static int bla_process_claim(struct bat_priv *bat_priv,
struct hard_iface *primary_if,
struct sk_buff *skb)
@@ -857,7 +858,8 @@ static int bla_process_claim(struct bat_priv *bat_priv,
arphdr = (struct arphdr *)((uint8_t *)ethhdr + headlen);
/* Check whether the ARP frame carries a valid
- * IP information */
+ * IP information
+ */
if (arphdr->ar_hrd != htons(ARPHRD_ETHER))
return 0;
@@ -1054,7 +1056,8 @@ void bla_update_orig_address(struct bat_priv *bat_priv,
memcpy(backbone_gw->orig,
primary_if->net_dev->dev_addr, ETH_ALEN);
/* send an announce frame so others will ask for our
- * claims and update their tables. */
+ * claims and update their tables.
+ */
bla_send_announce(bat_priv, backbone_gw);
}
rcu_read_unlock();
@@ -1075,7 +1078,6 @@ static void bla_start_timer(struct bat_priv *bat_priv)
* * purge structures when they are too old
* * send announcements
*/
-
static void bla_periodic_work(struct work_struct *work)
{
struct delayed_work *delayed_work =
@@ -1205,7 +1207,8 @@ int bla_check_bcast_duplist(struct bat_priv *bat_priv,
entry = &bat_priv->bcast_duplist[curr];
/* we can stop searching if the entry is too old ;
- * later entries will be even older */
+ * later entries will be even older
+ */
if (has_timed_out(entry->entrytime, DUPLIST_TIMEOUT))
break;
@@ -1216,7 +1219,8 @@ int bla_check_bcast_duplist(struct bat_priv *bat_priv,
continue;
/* this entry seems to match: same crc, not too old,
- * and from another gw. therefore return 1 to forbid it. */
+ * and from another gw. therefore return 1 to forbid it.
+ */
return 1;
}
/* not found, add a new entry (overwrite the oldest entry) */
@@ -1241,7 +1245,7 @@ int bla_check_bcast_duplist(struct bat_priv *bat_priv,
*
* returns 1 if it is found, 0 otherwise
*
- **/
+ */
int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig)
{
@@ -1283,8 +1287,7 @@ int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig)
* if the orig_node is also a gateway on the soft interface, otherwise it
* returns 0.
*
- **/
-
+ */
int bla_is_backbone_gw(struct sk_buff *skb,
struct orig_node *orig_node, int hdr_size)
{
@@ -1357,8 +1360,7 @@ void bla_free(struct bat_priv *bat_priv)
* returns 1, otherwise it returns 0 and the caller shall further
* process the skb.
*
- **/
-
+ */
int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
{
struct ethhdr *ethhdr;
@@ -1387,7 +1389,8 @@ int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
if (!claim) {
/* possible optimization: race for a claim */
- /* No claim exists yet, claim it for us! */
+ /* No claim exists yet, claim it for us!
+ */
handle_claim(bat_priv, primary_if,
primary_if->net_dev->dev_addr,
ethhdr->h_source, vid);
@@ -1409,7 +1412,8 @@ int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
} else {
/* seems the client considers us as its best gateway.
* send a claim and update the claim table
- * immediately. */
+ * immediately.
+ */
handle_claim(bat_priv, primary_if,
primary_if->net_dev->dev_addr,
ethhdr->h_source, vid);
@@ -1445,8 +1449,7 @@ out:
* returns 1, otherwise it returns 0 and the caller shall further
* process the skb.
*
- **/
-
+ */
int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
{
struct ethhdr *ethhdr;
@@ -1487,7 +1490,8 @@ int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
if (compare_eth(claim->backbone_gw->orig,
primary_if->net_dev->dev_addr)) {
/* if yes, the client has roamed and we have
- * to unclaim it. */
+ * to unclaim it.
+ */
handle_unclaim(bat_priv, primary_if,
primary_if->net_dev->dev_addr,
ethhdr->h_source, vid);
@@ -1497,11 +1501,13 @@ int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
/* check if it is a multicast/broadcast frame */
if (is_multicast_ether_addr(ethhdr->h_dest)) {
/* drop it. the responsible gateway has forwarded it into
- * the backbone network. */
+ * the backbone network.
+ */
goto handled;
} else {
/* we must allow it. at least if we are
- * responsible for the DESTINATION. */
+ * responsible for the DESTINATION.
+ */
goto allow;
}
allow:
@@ -108,7 +108,8 @@ enum bla_claimframe {
};
/* the destination hardware field in the ARP frame is used to
- * transport the claim type and the group id */
+ * transport the claim type and the group id
+ */
struct bla_claim_dst {
uint8_t magic[3]; /* FF:43:05 */
uint8_t type; /* bla_claimframe */
@@ -670,7 +670,8 @@ int recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if)
/* check if it is a backbone gateway. we don't accept
* roaming advertisement from it, as it has the same
- * entries as we have. */
+ * entries as we have.
+ */
if (bla_is_backbone_gw_orig(bat_priv, roam_adv_packet->src))
goto out;
@@ -1089,7 +1090,8 @@ int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
add_bcast_packet_to_list(bat_priv, skb, 1);
/* don't hand the broadcast up if it is from an originator
- * from the same backbone. */
+ * from the same backbone.
+ */
if (bla_is_backbone_gw(skb, orig_node, hdr_size))
goto out;
@@ -163,7 +163,8 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif);
/* don't accept stp packets. STP does not help in meshes.
- * better use the bridge loop avoidance ... */
+ * better use the bridge loop avoidance ...
+ */
if (compare_eth(ethhdr->h_dest, stp_addr))
goto dropped;
@@ -311,7 +312,8 @@ void interface_rx(struct net_device *soft_iface,
goto dropped;
/* Let the bridge loop avoidance check the packet. If will
- * not handle it, we can safely push it up. */
+ * not handle it, we can safely push it up.
+ */
if (bla_rx(bat_priv, skb, vid))
goto out;
@@ -263,8 +263,8 @@ void tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
}
rcu_read_unlock();
/* The global entry has to be marked as ROAMING and
- * has to be kept for consistency purpose */
-
+ * has to be kept for consistency purpose
+ */
tt_global_entry->common.flags |= TT_CLIENT_ROAM;
tt_global_entry->roam_at = jiffies;
}
@@ -518,7 +518,8 @@ static void tt_changes_list_free(struct bat_priv *bat_priv)
}
/* find out if an orig_node is already in the list of a tt_global_entry.
- * returns 1 if found, 0 otherwise */
+ * returns 1 if found, 0 otherwise
+ */
static bool tt_global_entry_has_orig(const struct tt_global_entry *entry,
const struct orig_node *orig_node)
{
@@ -807,7 +808,8 @@ static void tt_global_del_roaming(struct bat_priv *bat_priv,
tt_global_entry->roam_at = jiffies;
} else
/* there is another entry, we can simply delete this
- * one and can still use the other one. */
+ * one and can still use the other one.
+ */
tt_global_del_orig_entry(bat_priv, tt_global_entry,
orig_node, message);
}
@@ -1078,12 +1080,14 @@ static uint16_t tt_global_crc(struct bat_priv *bat_priv,
/* Roaming clients are in the global table for
* consistency only. They don't have to be
* taken into account while computing the
- * global crc */
+ * global crc
+ */
if (tt_global_entry->common.flags & TT_CLIENT_ROAM)
continue;
/* find out if this global entry is announced by this
- * originator */
+ * originator
+ */
if (!tt_global_entry_has_orig(tt_global_entry,
orig_node))
continue;