-/* Copyright (C) 2011-2014 B.A.T.M.A.N. contributors:
+/* Copyright (C) 2011-2015 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich
*
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
-#include "main.h"
-#include "hash.h"
-#include "hard-interface.h"
-#include "originator.h"
#include "bridge_loop_avoidance.h"
-#include "translation-table.h"
-#include "send.h"
+#include "main.h"
-#include <linux/etherdevice.h>
+#include <linux/atomic.h>
+#include <linux/byteorder/generic.h>
+#include <linux/compiler.h>
#include <linux/crc16.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/fs.h>
#include <linux/if_arp.h>
-#include <net/arp.h>
+#include <linux/if_ether.h>
#include <linux/if_vlan.h>
+#include <linux/jhash.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/lockdep.h>
+#include <linux/netdevice.h>
+#include <linux/rculist.h>
+#include <linux/rcupdate.h>
+#include <linux/seq_file.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <linux/workqueue.h>
+#include <net/arp.h>
-static const uint8_t batadv_announce_mac[4] = {0x43, 0x05, 0x43, 0x05};
+#include "hard-interface.h"
+#include "hash.h"
+#include "originator.h"
+#include "packet.h"
+#include "translation-table.h"
+
+static const u8 batadv_announce_mac[4] = {0x43, 0x05, 0x43, 0x05};
static void batadv_bla_periodic_work(struct work_struct *work);
static void
struct batadv_bla_backbone_gw *backbone_gw);
/* return the index of the claim */
-static inline uint32_t batadv_choose_claim(const void *data, uint32_t size)
+static inline u32 batadv_choose_claim(const void *data, u32 size)
{
struct batadv_bla_claim *claim = (struct batadv_bla_claim *)data;
- uint32_t hash = 0;
-
- hash = batadv_hash_bytes(hash, &claim->addr, sizeof(claim->addr));
- hash = batadv_hash_bytes(hash, &claim->vid, sizeof(claim->vid));
+ u32 hash = 0;
- hash += (hash << 3);
- hash ^= (hash >> 11);
- hash += (hash << 15);
+ hash = jhash(&claim->addr, sizeof(claim->addr), hash);
+ hash = jhash(&claim->vid, sizeof(claim->vid), hash);
return hash % size;
}
/* return the index of the backbone gateway */
-static inline uint32_t batadv_choose_backbone_gw(const void *data,
- uint32_t size)
+static inline u32 batadv_choose_backbone_gw(const void *data, u32 size)
{
const struct batadv_bla_claim *claim = (struct batadv_bla_claim *)data;
- uint32_t hash = 0;
+ u32 hash = 0;
- hash = batadv_hash_bytes(hash, &claim->addr, sizeof(claim->addr));
- hash = batadv_hash_bytes(hash, &claim->vid, sizeof(claim->vid));
-
- hash += (hash << 3);
- hash ^= (hash >> 11);
- hash += (hash << 15);
+ hash = jhash(&claim->addr, sizeof(claim->addr), hash);
+ hash = jhash(&claim->vid, sizeof(claim->vid), hash);
return hash % size;
}
{
const void *data1 = container_of(node, struct batadv_bla_backbone_gw,
hash_entry);
- const struct batadv_bla_backbone_gw *gw1 = data1, *gw2 = data2;
+ const struct batadv_bla_backbone_gw *gw1 = data1;
+ const struct batadv_bla_backbone_gw *gw2 = data2;
if (!batadv_compare_eth(gw1->orig, gw2->orig))
return 0;
{
const void *data1 = container_of(node, struct batadv_bla_claim,
hash_entry);
- const struct batadv_bla_claim *cl1 = data1, *cl2 = data2;
+ const struct batadv_bla_claim *cl1 = data1;
+ const struct batadv_bla_claim *cl2 = data2;
if (!batadv_compare_eth(cl1->addr, cl2->addr))
return 0;
}
/* finally deinitialize the claim */
-static void batadv_claim_free_rcu(struct rcu_head *rcu)
+static void batadv_claim_release(struct batadv_bla_claim *claim)
{
- struct batadv_bla_claim *claim;
-
- claim = container_of(rcu, struct batadv_bla_claim, rcu);
-
batadv_backbone_gw_free_ref(claim->backbone_gw);
- kfree(claim);
+ kfree_rcu(claim, rcu);
}
/* free a claim, call claim_free_rcu if its the last reference */
static void batadv_claim_free_ref(struct batadv_bla_claim *claim)
{
if (atomic_dec_and_test(&claim->refcount))
- call_rcu(&claim->rcu, batadv_claim_free_rcu);
+ batadv_claim_release(claim);
}
/**
* Returns claim if found or NULL otherwise.
*/
static struct batadv_bla_backbone_gw *
-batadv_backbone_hash_find(struct batadv_priv *bat_priv,
- uint8_t *addr, unsigned short vid)
+batadv_backbone_hash_find(struct batadv_priv *bat_priv, u8 *addr,
+ unsigned short vid)
{
struct batadv_hashtable *hash = bat_priv->bla.backbone_hash;
struct hlist_head *head;
* @vid: the VLAN ID
* @claimtype: the type of the claim (CLAIM, UNCLAIM, ANNOUNCE, ...)
*/
-static void batadv_bla_send_claim(struct batadv_priv *bat_priv, uint8_t *mac,
+static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac,
unsigned short vid, int claimtype)
{
struct sk_buff *skb;
struct ethhdr *ethhdr;
struct batadv_hard_iface *primary_if;
struct net_device *soft_iface;
- uint8_t *hw_src;
+ u8 *hw_src;
struct batadv_bla_claim_dst local_claim_dest;
__be32 zeroip = 0;
* with XX = claim type
* and YY:YY = group id
*/
- (uint8_t *)&local_claim_dest);
+ (u8 *)&local_claim_dest);
if (!skb)
goto out;
ethhdr = (struct ethhdr *)skb->data;
- hw_src = (uint8_t *)ethhdr + ETH_HLEN + sizeof(struct arphdr);
+ hw_src = (u8 *)ethhdr + ETH_HLEN + sizeof(struct arphdr);
/* now we pretend that the client would have sent this ... */
switch (claimtype) {
* be found.
*/
static struct batadv_bla_backbone_gw *
-batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, uint8_t *orig,
+batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, u8 *orig,
unsigned short vid, bool own_backbone)
{
struct batadv_bla_backbone_gw *entry;
static void batadv_bla_send_announce(struct batadv_priv *bat_priv,
struct batadv_bla_backbone_gw *backbone_gw)
{
- uint8_t mac[ETH_ALEN];
+ u8 mac[ETH_ALEN];
__be16 crc;
memcpy(mac, batadv_announce_mac, 4);
* @backbone_gw: the backbone gateway which claims it
*/
static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
- const uint8_t *mac, const unsigned short vid,
+ const u8 *mac, const unsigned short vid,
struct batadv_bla_backbone_gw *backbone_gw)
{
struct batadv_bla_claim *claim;
* given mac address and vid.
*/
static void batadv_bla_del_claim(struct batadv_priv *bat_priv,
- const uint8_t *mac, const unsigned short vid)
+ const u8 *mac, const unsigned short vid)
{
struct batadv_bla_claim search_claim, *claim;
}
/* check for ANNOUNCE frame, return 1 if handled */
-static int batadv_handle_announce(struct batadv_priv *bat_priv,
- uint8_t *an_addr, uint8_t *backbone_addr,
- unsigned short vid)
+static int batadv_handle_announce(struct batadv_priv *bat_priv, u8 *an_addr,
+ u8 *backbone_addr, unsigned short vid)
{
struct batadv_bla_backbone_gw *backbone_gw;
- uint16_t crc;
+ u16 crc;
if (memcmp(an_addr, batadv_announce_mac, 4) != 0)
return 0;
/* check for REQUEST frame, return 1 if handled */
static int batadv_handle_request(struct batadv_priv *bat_priv,
struct batadv_hard_iface *primary_if,
- uint8_t *backbone_addr,
- struct ethhdr *ethhdr, unsigned short vid)
+ u8 *backbone_addr, struct ethhdr *ethhdr,
+ unsigned short vid)
{
/* check for REQUEST frame */
if (!batadv_compare_eth(backbone_addr, ethhdr->h_dest))
/* check for UNCLAIM frame, return 1 if handled */
static int batadv_handle_unclaim(struct batadv_priv *bat_priv,
struct batadv_hard_iface *primary_if,
- uint8_t *backbone_addr,
- uint8_t *claim_addr, unsigned short vid)
+ u8 *backbone_addr, u8 *claim_addr,
+ unsigned short vid)
{
struct batadv_bla_backbone_gw *backbone_gw;
/* check for CLAIM frame, return 1 if handled */
static int batadv_handle_claim(struct batadv_priv *bat_priv,
struct batadv_hard_iface *primary_if,
- uint8_t *backbone_addr, uint8_t *claim_addr,
+ u8 *backbone_addr, u8 *claim_addr,
unsigned short vid)
{
struct batadv_bla_backbone_gw *backbone_gw;
*/
static int batadv_check_claim_group(struct batadv_priv *bat_priv,
struct batadv_hard_iface *primary_if,
- uint8_t *hw_src, uint8_t *hw_dst,
+ u8 *hw_src, u8 *hw_dst,
struct ethhdr *ethhdr)
{
- uint8_t *backbone_addr;
+ u8 *backbone_addr;
struct batadv_orig_node *orig_node;
struct batadv_bla_claim_dst *bla_dst, *bla_dst_own;
struct sk_buff *skb)
{
struct batadv_bla_claim_dst *bla_dst, *bla_dst_own;
- uint8_t *hw_src, *hw_dst;
+ u8 *hw_src, *hw_dst;
struct vlan_hdr *vhdr, vhdr_buf;
struct ethhdr *ethhdr;
struct arphdr *arphdr;
/* pskb_may_pull() may have modified the pointers, get ethhdr again */
ethhdr = eth_hdr(skb);
- arphdr = (struct arphdr *)((uint8_t *)ethhdr + headlen);
+ arphdr = (struct arphdr *)((u8 *)ethhdr + headlen);
/* Check whether the ARP frame carries a valid
* IP information
if (arphdr->ar_pln != 4)
return 0;
- hw_src = (uint8_t *)arphdr + sizeof(struct arphdr);
+ hw_src = (u8 *)arphdr + sizeof(struct arphdr);
hw_dst = hw_src + ETH_ALEN + 4;
bla_dst = (struct batadv_bla_claim_dst *)hw_dst;
bla_dst_own = &bat_priv->bla.claim_dest;
int batadv_bla_init(struct batadv_priv *bat_priv)
{
int i;
- uint8_t claim_dest[ETH_ALEN] = {0xff, 0x43, 0x05, 0x00, 0x00, 0x00};
+ u8 claim_dest[ETH_ALEN] = {0xff, 0x43, 0x05, 0x00, 0x00, 0x00};
struct batadv_hard_iface *primary_if;
- uint16_t crc;
+ u16 crc;
unsigned long entrytime;
spin_lock_init(&bat_priv->bla.bcast_duplist_lock);
*
* Returns true if orig is a backbone for this vid, false otherwise.
*/
-bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig,
+bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig,
unsigned short vid)
{
struct batadv_hashtable *hash = bat_priv->bla.backbone_hash;
struct batadv_bla_claim *claim;
struct batadv_hard_iface *primary_if;
struct hlist_head *head;
- uint32_t i;
+ u32 i;
bool is_own;
- uint8_t *primary_addr;
+ u8 *primary_addr;
primary_if = batadv_seq_print_text_primary_if_get(seq);
if (!primary_if)
struct batadv_hard_iface *primary_if;
struct hlist_head *head;
int secs, msecs;
- uint32_t i;
+ u32 i;
bool is_own;
- uint8_t *primary_addr;
+ u8 *primary_addr;
primary_if = batadv_seq_print_text_primary_if_get(seq);
if (!primary_if)
Code Review / kvmfornfv.git / blobdiff