Author: marek
Date: 2010-07-25 04:34:38 +0200 (Sun, 25 Jul 2010)
New Revision: 1749
Added:
trunk/batman-adv/unicast.c
trunk/batman-adv/unicast.h
Removed:
trunk/batman-adv/fragmentation.c
trunk/batman-adv/fragmentation.h
Modified:
trunk/batman-adv/Makefile.kbuild
trunk/batman-adv/originator.c
trunk/batman-adv/routing.c
trunk/batman-adv/soft-interface.c
Log:
batman-adv: refactoring unicast payload code
Signed-off-by: Marek Lindner <lindner_marek(a)yahoo.de>
Modified: trunk/batman-adv/Makefile.kbuild
===================================================================
--- trunk/batman-adv/Makefile.kbuild 2010-07-25 00:16:06 UTC (rev 1748)
+++ trunk/batman-adv/Makefile.kbuild 2010-07-25 02:34:38 UTC (rev 1749)
@@ -32,4 +32,4 @@
endif
obj-m += batman-adv.o
-batman-adv-objs := main.o bat_debugfs.o bat_sysfs.o send.o routing.o soft-interface.o icmp_socket.o translation-table.o bitarray.o hash.o ring_buffer.o vis.o hard-interface.o aggregation.o originator.o gateway_common.o gateway_client.o fragmentation.o $(shell [ "2" -eq "$(VERSION)" ] 2>&- && [ "6" -eq "$(PATCHLEVEL)" ] 2>&- && [ "$(SUBLEVEL)" -le "28" ] 2>&- && echo bat_printk.o)
+batman-adv-objs := main.o bat_debugfs.o bat_sysfs.o send.o routing.o soft-interface.o icmp_socket.o translation-table.o bitarray.o hash.o ring_buffer.o vis.o hard-interface.o aggregation.o originator.o gateway_common.o gateway_client.o unicast.o $(shell [ "2" -eq "$(VERSION)" ] 2>&- && [ "6" -eq "$(PATCHLEVEL)" ] 2>&- && [ "$(SUBLEVEL)" -le "28" ] 2>&- && echo bat_printk.o)
Deleted: trunk/batman-adv/fragmentation.c
===================================================================
--- trunk/batman-adv/fragmentation.c 2010-07-25 00:16:06 UTC (rev 1748)
+++ trunk/batman-adv/fragmentation.c 2010-07-25 02:34:38 UTC (rev 1749)
@@ -1,142 +0,0 @@
-/*
- * Copyright (C) 2010 B.A.T.M.A.N. contributors:
- *
- * Andreas Langer
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- */
-#include "main.h"
-#include "fragmentation.h"
-
-
-struct sk_buff *merge_frag_packet(struct list_head *head,
- struct frag_packet_list_entry *tfp,
- struct sk_buff *skb)
-{
- struct unicast_frag_packet *up =
- (struct unicast_frag_packet *) skb->data;
- struct sk_buff *tmp_skb;
-
- /* set skb to the first part and tmp_skb to the second part */
- if (up->flags & UNI_FRAG_HEAD) {
- tmp_skb = tfp->skb;
- } else {
- tmp_skb = skb;
- skb = tfp->skb;
- }
-
- skb_pull(tmp_skb, sizeof(struct unicast_frag_packet));
- if (pskb_expand_head(skb, 0, tmp_skb->len, GFP_ATOMIC) < 0) {
- /* free buffered skb, skb will be freed later */
- kfree_skb(tfp->skb);
- return NULL;
- }
-
- /* move free entry to end */
- tfp->skb = NULL;
- tfp->seqno = 0;
- list_move_tail(&tfp->list, head);
-
- memcpy(skb_put(skb, tmp_skb->len), tmp_skb->data, tmp_skb->len);
- kfree_skb(tmp_skb);
- return skb;
-}
-
-void create_frag_entry(struct list_head *head, struct sk_buff *skb)
-{
- struct frag_packet_list_entry *tfp;
- struct unicast_frag_packet *up =
- (struct unicast_frag_packet *) skb->data;
-
- /* free and oldest packets stand at the end */
- tfp = list_entry((head)->prev, typeof(*tfp), list);
- kfree_skb(tfp->skb);
-
- tfp->seqno = ntohs(up->seqno);
- tfp->skb = skb;
- list_move(&tfp->list, head);
- return;
-}
-
-void create_frag_buffer(struct list_head *head)
-{
- int i;
- struct frag_packet_list_entry *tfp;
-
- for (i = 0; i < FRAG_BUFFER_SIZE; i++) {
- tfp = kmalloc(sizeof(struct frag_packet_list_entry),
- GFP_ATOMIC);
- tfp->skb = NULL;
- tfp->seqno = 0;
- INIT_LIST_HEAD(&tfp->list);
- list_add(&tfp->list, head);
- }
-
- return;
-}
-
-struct frag_packet_list_entry *search_frag_packet(struct list_head *head,
- struct unicast_frag_packet *up)
-{
- struct frag_packet_list_entry *tfp;
- struct unicast_frag_packet *tmp_up = NULL;
- uint16_t search_seqno;
-
- if (up->flags & UNI_FRAG_HEAD)
- search_seqno = ntohs(up->seqno)+1;
- else
- search_seqno = ntohs(up->seqno)-1;
-
- list_for_each_entry(tfp, head, list) {
-
- if (!tfp->skb)
- continue;
-
- if (tfp->seqno == ntohs(up->seqno))
- goto mov_tail;
-
- tmp_up = (struct unicast_frag_packet *) tfp->skb->data;
-
- if (tfp->seqno == search_seqno) {
-
- if ((tmp_up->flags & UNI_FRAG_HEAD) !=
- (up->flags & UNI_FRAG_HEAD))
- return tfp;
- else
- goto mov_tail;
- }
- }
- return NULL;
-
-mov_tail:
- list_move_tail(&tfp->list, head);
- return NULL;
-}
-
-void frag_list_free(struct list_head *head)
-{
- struct frag_packet_list_entry *pf, *tmp_pf;
-
- if (!list_empty(head)) {
-
- list_for_each_entry_safe(pf, tmp_pf, head, list) {
- kfree_skb(pf->skb);
- list_del(&pf->list);
- kfree(pf);
- }
- }
- return;
-}
Deleted: trunk/batman-adv/fragmentation.h
===================================================================
--- trunk/batman-adv/fragmentation.h 2010-07-25 00:16:06 UTC (rev 1748)
+++ trunk/batman-adv/fragmentation.h 2010-07-25 02:34:38 UTC (rev 1749)
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2010 B.A.T.M.A.N. contributors:
- *
- * Andreas Langer
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- */
-
-#define FRAG_TIMEOUT 10000 /* purge frag list entrys after time in ms */
-#define FRAG_BUFFER_SIZE 6 /* number of list elements in buffer */
-
-struct sk_buff *merge_frag_packet(struct list_head *head,
- struct frag_packet_list_entry *tfp,
- struct sk_buff *skb);
-
-void create_frag_entry(struct list_head *head, struct sk_buff *skb);
-void create_frag_buffer(struct list_head *head);
-struct frag_packet_list_entry *search_frag_packet(struct list_head *head,
- struct unicast_frag_packet *up);
-void frag_list_free(struct list_head *head);
Modified: trunk/batman-adv/originator.c
===================================================================
--- trunk/batman-adv/originator.c 2010-07-25 00:16:06 UTC (rev 1748)
+++ trunk/batman-adv/originator.c 2010-07-25 02:34:38 UTC (rev 1749)
@@ -29,7 +29,7 @@
#include "compat.h"
#include "gateway_client.h"
#include "hard-interface.h"
-#include "fragmentation.h"
+#include "unicast.h"
static DECLARE_DELAYED_WORK(purge_orig_wq, purge_orig);
Modified: trunk/batman-adv/routing.c
===================================================================
--- trunk/batman-adv/routing.c 2010-07-25 00:16:06 UTC (rev 1748)
+++ trunk/batman-adv/routing.c 2010-07-25 02:34:38 UTC (rev 1749)
@@ -34,7 +34,7 @@
#include "aggregation.h"
#include "compat.h"
#include "gateway_client.h"
-#include "fragmentation.h"
+#include "unicast.h"
static DECLARE_WAIT_QUEUE_HEAD(thread_wait);
Modified: trunk/batman-adv/soft-interface.c
===================================================================
--- trunk/batman-adv/soft-interface.c 2010-07-25 00:16:06 UTC (rev 1748)
+++ trunk/batman-adv/soft-interface.c 2010-07-25 02:34:38 UTC (rev 1749)
@@ -22,17 +22,14 @@
#include "main.h"
#include "soft-interface.h"
#include "hard-interface.h"
-#include "routing.h"
-#include "send.h"
#include "translation-table.h"
-#include "types.h"
-#include "hash.h"
-#include <linux/slab.h>
#include "gateway_client.h"
+#include "send.h"
+#include <linux/slab.h>
#include <linux/ethtool.h>
#include <linux/etherdevice.h>
#include "compat.h"
-#include "fragmentation.h"
+#include "unicast.h"
static uint32_t bcast_seqno = 1; /* give own bcast messages seq numbers to avoid
* broadcast storms */
@@ -130,28 +127,15 @@
int interface_tx(struct sk_buff *skb, struct net_device *dev)
{
- struct unicast_packet *unicast_packet;
- struct unicast_frag_packet *ucast_frag1, *ucast_frag2;
- struct bcast_packet *bcast_packet;
- struct orig_node *orig_node;
- struct neigh_node *router;
struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
- struct bat_priv *priv = netdev_priv(dev);
- struct batman_if *batman_if;
- struct bat_priv *bat_priv;
- struct sk_buff *frag_skb;
- uint8_t dstaddr[6];
- int data_len = skb->len;
- unsigned long flags;
- int hdr_len;
+ struct bat_priv *bat_priv = netdev_priv(dev);
+ struct bcast_packet *bcast_packet;
+ int data_len = skb->len, ret;
bool bcast_dst = false, do_bcast = true;
if (atomic_read(&module_state) != MODULE_ACTIVE)
goto dropped;
- /* FIXME: each batman_if will be attached to a softif */
- bat_priv = netdev_priv(soft_device);
-
dev->trans_start = jiffies;
/* TODO: check this for locks */
hna_local_add(ethhdr->h_source);
@@ -191,109 +175,19 @@
/* unicast packet */
} else {
- spin_lock_irqsave(&orig_hash_lock, flags);
-
- /* get routing information */
- if (bcast_dst)
- orig_node = (struct orig_node *)gw_get_selected();
- else
- orig_node = ((struct orig_node *)hash_find(orig_hash,
- ethhdr->h_dest));
-
- /* check for hna host */
- if (!orig_node)
- orig_node = transtable_search(ethhdr->h_dest);
-
- router = find_router(orig_node, NULL);
-
- if (!router)
- goto unlock;
-
- /* don't lock while sending the packets ... we therefore
- * copy the required data before sending */
-
- batman_if = router->if_incoming;
- memcpy(dstaddr, router->addr, ETH_ALEN);
-
- spin_unlock_irqrestore(&orig_hash_lock, flags);
-
- if (batman_if->if_status != IF_ACTIVE)
- goto dropped;
-
- if (atomic_read(&bat_priv->frag_enabled) &&
- data_len + sizeof(struct unicast_packet) >
- batman_if->net_dev->mtu) {
-
- if (!bat_priv->primary_if)
- goto dropped;
-
- hdr_len = sizeof(struct unicast_frag_packet);
-
- frag_skb = dev_alloc_skb(data_len - (data_len / 2) +
- hdr_len);
- skb_split(skb, frag_skb, data_len / 2);
-
- if (my_skb_push(frag_skb, hdr_len) < 0 ||
- my_skb_push(skb, hdr_len) < 0) {
-
- kfree_skb(frag_skb);
- goto dropped;
- }
-
- ucast_frag1 = (struct unicast_frag_packet *)skb->data;
- ucast_frag2 =
- (struct unicast_frag_packet *)frag_skb->data;
-
- ucast_frag1->version = COMPAT_VERSION;
- ucast_frag1->packet_type = BAT_UNICAST_FRAG;
- ucast_frag1->ttl = TTL;
- memcpy(ucast_frag1->orig,
- bat_priv->primary_if->net_dev->dev_addr,
- ETH_ALEN);
- memcpy(ucast_frag1->dest, orig_node->orig, ETH_ALEN);
-
- memcpy(ucast_frag2, ucast_frag1,
- sizeof(struct unicast_frag_packet));
-
- ucast_frag1->flags |= UNI_FRAG_HEAD;
- ucast_frag2->flags &= ~UNI_FRAG_HEAD;
-
- ucast_frag1->seqno = htons((uint16_t)atomic_inc_return(
- &batman_if->frag_seqno));
-
- ucast_frag2->seqno = htons((uint16_t)atomic_inc_return(
- &batman_if->frag_seqno));
-
- send_skb_packet(skb, batman_if, dstaddr);
- send_skb_packet(frag_skb, batman_if, dstaddr);
-
- } else {
-
- if (my_skb_push(skb, sizeof(struct unicast_packet)) < 0)
- goto dropped;
-
- unicast_packet = (struct unicast_packet *)skb->data;
-
- unicast_packet->version = COMPAT_VERSION;
- /* batman packet type: unicast */
- unicast_packet->packet_type = BAT_UNICAST;
- /* set unicast ttl */
- unicast_packet->ttl = TTL;
- /* copy the destination for faster routing */
- memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN);
-
- send_skb_packet(skb, batman_if, dstaddr);
+ ret = unicast_send_skb(skb, bat_priv);
+ if (ret != 0) {
+ bat_priv->stats.tx_dropped++;
+ goto end;
}
}
- priv->stats.tx_packets++;
- priv->stats.tx_bytes += data_len;
+ bat_priv->stats.tx_packets++;
+ bat_priv->stats.tx_bytes += data_len;
goto end;
-unlock:
- spin_unlock_irqrestore(&orig_hash_lock, flags);
dropped:
- priv->stats.tx_dropped++;
+ bat_priv->stats.tx_dropped++;
kfree_skb(skb);
end:
return NETDEV_TX_OK;
Added: trunk/batman-adv/unicast.c
===================================================================
--- trunk/batman-adv/unicast.c (rev 0)
+++ trunk/batman-adv/unicast.c 2010-07-25 02:34:38 UTC (rev 1749)
@@ -0,0 +1,269 @@
+/*
+ * Copyright (C) 2010 B.A.T.M.A.N. contributors:
+ *
+ * Andreas Langer
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+#include "main.h"
+#include "unicast.h"
+#include "send.h"
+#include "soft-interface.h"
+#include "gateway_client.h"
+#include "hash.h"
+#include "translation-table.h"
+#include "routing.h"
+#include "hard-interface.h"
+
+
+struct sk_buff *merge_frag_packet(struct list_head *head,
+ struct frag_packet_list_entry *tfp,
+ struct sk_buff *skb)
+{
+ struct unicast_frag_packet *up =
+ (struct unicast_frag_packet *) skb->data;
+ struct sk_buff *tmp_skb;
+
+ /* set skb to the first part and tmp_skb to the second part */
+ if (up->flags & UNI_FRAG_HEAD) {
+ tmp_skb = tfp->skb;
+ } else {
+ tmp_skb = skb;
+ skb = tfp->skb;
+ }
+
+ skb_pull(tmp_skb, sizeof(struct unicast_frag_packet));
+ if (pskb_expand_head(skb, 0, tmp_skb->len, GFP_ATOMIC) < 0) {
+ /* free buffered skb, skb will be freed later */
+ kfree_skb(tfp->skb);
+ return NULL;
+ }
+
+ /* move free entry to end */
+ tfp->skb = NULL;
+ tfp->seqno = 0;
+ list_move_tail(&tfp->list, head);
+
+ memcpy(skb_put(skb, tmp_skb->len), tmp_skb->data, tmp_skb->len);
+ kfree_skb(tmp_skb);
+ return skb;
+}
+
+void create_frag_entry(struct list_head *head, struct sk_buff *skb)
+{
+ struct frag_packet_list_entry *tfp;
+ struct unicast_frag_packet *up =
+ (struct unicast_frag_packet *) skb->data;
+
+ /* free and oldest packets stand at the end */
+ tfp = list_entry((head)->prev, typeof(*tfp), list);
+ kfree_skb(tfp->skb);
+
+ tfp->seqno = ntohs(up->seqno);
+ tfp->skb = skb;
+ list_move(&tfp->list, head);
+ return;
+}
+
+void create_frag_buffer(struct list_head *head)
+{
+ int i;
+ struct frag_packet_list_entry *tfp;
+
+ for (i = 0; i < FRAG_BUFFER_SIZE; i++) {
+ tfp = kmalloc(sizeof(struct frag_packet_list_entry),
+ GFP_ATOMIC);
+ tfp->skb = NULL;
+ tfp->seqno = 0;
+ INIT_LIST_HEAD(&tfp->list);
+ list_add(&tfp->list, head);
+ }
+
+ return;
+}
+
+struct frag_packet_list_entry *search_frag_packet(struct list_head *head,
+ struct unicast_frag_packet *up)
+{
+ struct frag_packet_list_entry *tfp;
+ struct unicast_frag_packet *tmp_up = NULL;
+ uint16_t search_seqno;
+
+ if (up->flags & UNI_FRAG_HEAD)
+ search_seqno = ntohs(up->seqno)+1;
+ else
+ search_seqno = ntohs(up->seqno)-1;
+
+ list_for_each_entry(tfp, head, list) {
+
+ if (!tfp->skb)
+ continue;
+
+ if (tfp->seqno == ntohs(up->seqno))
+ goto mov_tail;
+
+ tmp_up = (struct unicast_frag_packet *) tfp->skb->data;
+
+ if (tfp->seqno == search_seqno) {
+
+ if ((tmp_up->flags & UNI_FRAG_HEAD) !=
+ (up->flags & UNI_FRAG_HEAD))
+ return tfp;
+ else
+ goto mov_tail;
+ }
+ }
+ return NULL;
+
+mov_tail:
+ list_move_tail(&tfp->list, head);
+ return NULL;
+}
+
+void frag_list_free(struct list_head *head)
+{
+ struct frag_packet_list_entry *pf, *tmp_pf;
+
+ if (!list_empty(head)) {
+
+ list_for_each_entry_safe(pf, tmp_pf, head, list) {
+ kfree_skb(pf->skb);
+ list_del(&pf->list);
+ kfree(pf);
+ }
+ }
+ return;
+}
+
+int unicast_send_frag_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
+ struct batman_if *batman_if, uint8_t dstaddr[],
+ struct orig_node *orig_node)
+{
+ struct unicast_frag_packet *ucast_frag1, *ucast_frag2;
+ int hdr_len = sizeof(struct unicast_frag_packet);
+ struct sk_buff *frag_skb;
+ int data_len = skb->len;
+
+ if (!bat_priv->primary_if)
+ goto dropped;
+
+ frag_skb = dev_alloc_skb(data_len - (data_len / 2) + hdr_len);
+ skb_split(skb, frag_skb, data_len / 2);
+
+ if (my_skb_push(frag_skb, hdr_len) < 0 ||
+ my_skb_push(skb, hdr_len) < 0)
+ goto drop_frag;
+
+ ucast_frag1 = (struct unicast_frag_packet *)skb->data;
+ ucast_frag2 = (struct unicast_frag_packet *)frag_skb->data;
+
+ ucast_frag1->version = COMPAT_VERSION;
+ ucast_frag1->packet_type = BAT_UNICAST_FRAG;
+ ucast_frag1->ttl = TTL;
+ memcpy(ucast_frag1->orig,
+ bat_priv->primary_if->net_dev->dev_addr, ETH_ALEN);
+ memcpy(ucast_frag1->dest, orig_node->orig, ETH_ALEN);
+
+ memcpy(ucast_frag2, ucast_frag1, sizeof(struct unicast_frag_packet));
+
+ ucast_frag1->flags |= UNI_FRAG_HEAD;
+ ucast_frag2->flags &= ~UNI_FRAG_HEAD;
+
+ ucast_frag1->seqno = htons((uint16_t)atomic_inc_return(
+ &batman_if->frag_seqno));
+
+ ucast_frag2->seqno = htons((uint16_t)atomic_inc_return(
+ &batman_if->frag_seqno));
+
+ send_skb_packet(skb, batman_if, dstaddr);
+ send_skb_packet(frag_skb, batman_if, dstaddr);
+ return 0;
+
+drop_frag:
+ kfree_skb(frag_skb);
+dropped:
+ kfree_skb(skb);
+ return 1;
+}
+
+int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv)
+{
+ struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
+ struct unicast_packet *unicast_packet;
+ struct orig_node *orig_node;
+ struct batman_if *batman_if;
+ struct neigh_node *router;
+ int data_len = skb->len;
+ uint8_t dstaddr[6];
+ unsigned long flags;
+
+ spin_lock_irqsave(&orig_hash_lock, flags);
+
+ /* get routing information */
+ if (is_bcast(ethhdr->h_dest) || is_mcast(ethhdr->h_dest))
+ orig_node = (struct orig_node *)gw_get_selected();
+ else
+ orig_node = ((struct orig_node *)hash_find(orig_hash,
+ ethhdr->h_dest));
+
+ /* check for hna host */
+ if (!orig_node)
+ orig_node = transtable_search(ethhdr->h_dest);
+
+ router = find_router(orig_node, NULL);
+
+ if (!router)
+ goto unlock;
+
+ /* don't lock while sending the packets ... we therefore
+ * copy the required data before sending */
+
+ batman_if = router->if_incoming;
+ memcpy(dstaddr, router->addr, ETH_ALEN);
+
+ spin_unlock_irqrestore(&orig_hash_lock, flags);
+
+ if (batman_if->if_status != IF_ACTIVE)
+ goto dropped;
+
+ if (atomic_read(&bat_priv->frag_enabled) &&
+ data_len + sizeof(struct unicast_packet) > batman_if->net_dev->mtu)
+ return unicast_send_frag_skb(skb, bat_priv, batman_if,
+ dstaddr, orig_node);
+
+ if (my_skb_push(skb, sizeof(struct unicast_packet)) < 0)
+ goto dropped;
+
+ unicast_packet = (struct unicast_packet *)skb->data;
+
+ unicast_packet->version = COMPAT_VERSION;
+ /* batman packet type: unicast */
+ unicast_packet->packet_type = BAT_UNICAST;
+ /* set unicast ttl */
+ unicast_packet->ttl = TTL;
+ /* copy the destination for faster routing */
+ memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN);
+
+ send_skb_packet(skb, batman_if, dstaddr);
+ return 0;
+
+unlock:
+ spin_unlock_irqrestore(&orig_hash_lock, flags);
+dropped:
+ kfree_skb(skb);
+ return 1;
+}
Copied: trunk/batman-adv/unicast.h (from rev 1748, trunk/batman-adv/fragmentation.h)
===================================================================
--- trunk/batman-adv/unicast.h (rev 0)
+++ trunk/batman-adv/unicast.h 2010-07-25 02:34:38 UTC (rev 1749)
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2010 B.A.T.M.A.N. contributors:
+ *
+ * Andreas Langer
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+#define FRAG_TIMEOUT 10000 /* purge frag list entrys after time in ms */
+#define FRAG_BUFFER_SIZE 6 /* number of list elements in buffer */
+
+struct sk_buff *merge_frag_packet(struct list_head *head,
+ struct frag_packet_list_entry *tfp,
+ struct sk_buff *skb);
+
+void create_frag_entry(struct list_head *head, struct sk_buff *skb);
+void create_frag_buffer(struct list_head *head);
+struct frag_packet_list_entry *search_frag_packet(struct list_head *head,
+ struct unicast_frag_packet *up);
+void frag_list_free(struct list_head *head);
+int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv);
