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path: root/drivers/staging/batman-adv/routing.c
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Diffstat (limited to 'drivers/staging/batman-adv/routing.c')
-rw-r--r--drivers/staging/batman-adv/routing.c221
1 files changed, 6 insertions, 215 deletions
diff --git a/drivers/staging/batman-adv/routing.c b/drivers/staging/batman-adv/routing.c
index 6a8d73d5135..e8d712788da 100644
--- a/drivers/staging/batman-adv/routing.c
+++ b/drivers/staging/batman-adv/routing.c
@@ -22,152 +22,22 @@
#include "main.h"
#include "routing.h"
#include "send.h"
+#include "hash.h"
#include "soft-interface.h"
#include "hard-interface.h"
#include "device.h"
#include "translation-table.h"
+#include "originator.h"
#include "types.h"
-#include "hash.h"
#include "ring_buffer.h"
#include "vis.h"
#include "aggregation.h"
#include "compat.h"
DECLARE_WAIT_QUEUE_HEAD(thread_wait);
-static DECLARE_DELAYED_WORK(purge_orig_wq, purge_orig);
static atomic_t data_ready_cond;
atomic_t exit_cond;
-
-static void start_purge_timer(void)
-{
- queue_delayed_work(bat_event_workqueue, &purge_orig_wq, 1 * HZ);
-}
-
-int originator_init(void)
-{
- if (orig_hash)
- return 1;
-
- spin_lock(&orig_hash_lock);
- orig_hash = hash_new(128, compare_orig, choose_orig);
-
- if (!orig_hash)
- goto err;
-
- spin_unlock(&orig_hash_lock);
- start_purge_timer();
- return 1;
-
-err:
- spin_unlock(&orig_hash_lock);
- return 0;
-}
-
-void originator_free(void)
-{
- if (!orig_hash)
- return;
-
- cancel_delayed_work_sync(&purge_orig_wq);
-
- spin_lock(&orig_hash_lock);
- hash_delete(orig_hash, free_orig_node);
- orig_hash = NULL;
- spin_unlock(&orig_hash_lock);
-}
-
-static struct neigh_node *
-create_neighbor(struct orig_node *orig_node, struct orig_node *orig_neigh_node,
- uint8_t *neigh, struct batman_if *if_incoming)
-{
- struct neigh_node *neigh_node;
-
- bat_dbg(DBG_BATMAN, "Creating new last-hop neighbour of originator\n");
-
- neigh_node = kmalloc(sizeof(struct neigh_node), GFP_ATOMIC);
- memset(neigh_node, 0, sizeof(struct neigh_node));
- INIT_LIST_HEAD(&neigh_node->list);
-
- memcpy(neigh_node->addr, neigh, ETH_ALEN);
- neigh_node->orig_node = orig_neigh_node;
- neigh_node->if_incoming = if_incoming;
-
- list_add_tail(&neigh_node->list, &orig_node->neigh_list);
- return neigh_node;
-}
-
-void free_orig_node(void *data)
-{
- struct list_head *list_pos, *list_pos_tmp;
- struct neigh_node *neigh_node;
- struct orig_node *orig_node = (struct orig_node *)data;
-
- /* for all neighbours towards this originator ... */
- list_for_each_safe(list_pos, list_pos_tmp, &orig_node->neigh_list) {
- neigh_node = list_entry(list_pos, struct neigh_node, list);
-
- list_del(list_pos);
- kfree(neigh_node);
- }
-
- hna_global_del_orig(orig_node, "originator timed out");
-
- kfree(orig_node->bcast_own);
- kfree(orig_node->bcast_own_sum);
- kfree(orig_node);
-}
-
-/* this function finds or creates an originator entry for the given
- * address if it does not exits */
-static struct orig_node *get_orig_node(uint8_t *addr)
-{
- struct orig_node *orig_node;
- struct hashtable_t *swaphash;
- char orig_str[ETH_STR_LEN];
- int size;
-
- orig_node = ((struct orig_node *)hash_find(orig_hash, addr));
-
- if (orig_node != NULL)
- return orig_node;
-
- addr_to_string(orig_str, addr);
- bat_dbg(DBG_BATMAN, "Creating new originator: %s \n", orig_str);
-
- orig_node = kmalloc(sizeof(struct orig_node), GFP_ATOMIC);
- memset(orig_node, 0, sizeof(struct orig_node));
- INIT_LIST_HEAD(&orig_node->neigh_list);
-
- memcpy(orig_node->orig, addr, ETH_ALEN);
- orig_node->router = NULL;
- orig_node->batman_if = NULL;
- orig_node->hna_buff = NULL;
-
- size = num_ifs * sizeof(TYPE_OF_WORD) * NUM_WORDS;
-
- orig_node->bcast_own = kmalloc(size, GFP_ATOMIC);
- memset(orig_node->bcast_own, 0, size);
-
- size = num_ifs * sizeof(uint8_t);
- orig_node->bcast_own_sum = kmalloc(size, GFP_ATOMIC);
- memset(orig_node->bcast_own_sum, 0, size);
-
- hash_add(orig_hash, orig_node);
-
- if (orig_hash->elements * 4 > orig_hash->size) {
- swaphash = hash_resize(orig_hash, orig_hash->size * 2);
-
- if (swaphash == NULL)
- printk(KERN_ERR
- "batman-adv:Couldn't resize orig hash table \n");
- else
- orig_hash = swaphash;
- }
-
- return orig_node;
-}
-
void slide_own_bcast_window(struct batman_if *batman_if)
{
struct hash_it_t *hashit = NULL;
@@ -246,7 +116,7 @@ static void update_route(struct orig_node *orig_node,
}
-static void update_routes(struct orig_node *orig_node,
+void update_routes(struct orig_node *orig_node,
struct neigh_node *neigh_node,
unsigned char *hna_buff, int hna_buff_len)
{
@@ -679,85 +549,6 @@ void receive_bat_packet(struct ethhdr *ethhdr,
0, hna_buff_len, if_incoming);
}
-static bool purge_orig_neigbours(struct orig_node *orig_node,
- struct neigh_node **best_neigh_node)
-{
- struct list_head *list_pos, *list_pos_tmp;
- char neigh_str[ETH_STR_LEN], orig_str[ETH_STR_LEN];
- struct neigh_node *neigh_node;
- bool neigh_purged = false;
-
- *best_neigh_node = NULL;
-
-
- /* for all neighbours towards this originator ... */
- list_for_each_safe(list_pos, list_pos_tmp, &orig_node->neigh_list) {
- neigh_node = list_entry(list_pos, struct neigh_node, list);
-
- if (time_after(jiffies,
- (neigh_node->last_valid +
- ((PURGE_TIMEOUT * HZ) / 1000)))) {
-
- addr_to_string(neigh_str, neigh_node->addr);
- bat_dbg(DBG_BATMAN, "Neighbour timeout: originator %s, neighbour: %s, last_valid %lu\n", orig_str, neigh_str, (neigh_node->last_valid / HZ));
-
- neigh_purged = true;
- list_del(list_pos);
- kfree(neigh_node);
- } else {
- if ((*best_neigh_node == NULL) ||
- (neigh_node->tq_avg > (*best_neigh_node)->tq_avg))
- *best_neigh_node = neigh_node;
- }
- }
- return neigh_purged;
-}
-
-static bool purge_orig_node(struct orig_node *orig_node)
-{
- struct neigh_node *best_neigh_node;
- char orig_str[ETH_STR_LEN];
-
- addr_to_string(orig_str, orig_node->orig);
-
- if (time_after(jiffies,
- (orig_node->last_valid +
- ((2 * PURGE_TIMEOUT * HZ) / 1000)))) {
-
- bat_dbg(DBG_BATMAN,
- "Originator timeout: originator %s, last_valid %lu\n",
- orig_str, (orig_node->last_valid / HZ));
- return true;
- } else {
- if (purge_orig_neigbours(orig_node, &best_neigh_node))
- update_routes(orig_node, best_neigh_node,
- orig_node->hna_buff,
- orig_node->hna_buff_len);
- }
- return false;
-}
-
-
-void purge_orig(struct work_struct *work)
-{
- struct hash_it_t *hashit = NULL;
- struct orig_node *orig_node;
-
- spin_lock(&orig_hash_lock);
-
- /* for all origins... */
- while (NULL != (hashit = hash_iterate(orig_hash, hashit))) {
- orig_node = hashit->bucket->data;
- if (purge_orig_node(orig_node)) {
- hash_remove_bucket(orig_hash, hashit);
- free_orig_node(orig_node);
- }
- }
-
- spin_unlock(&orig_hash_lock);
-
- start_purge_timer();
-}
static int receive_raw_packet(struct socket *raw_sock,
unsigned char *packet_buff, int packet_buff_len)
@@ -1178,9 +969,9 @@ static int discard_one_packet(struct batman_if *batman_if,
int result = -EAGAIN;
if (batman_if->raw_sock) {
- result = receive_raw_packet(batman_if->raw_sock,
- packet_buff,
- PACKBUFF_SIZE);
+ result = receive_raw_packet(batman_if->raw_sock,
+ packet_buff,
+ PACKBUFF_SIZE);
}
return result;
}