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Commit a5e3c2aa authored by David S. Miller's avatar David S. Miller
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Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-merge

parents 6b28ff3b 091b9483
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Documentation/networking/batman-adv.txt
View file @ a5e3c2aa
[state: 21-11-2010]
[state: 27-01-2011]
BATMAN-ADV
----------
......@@ -67,15 +67,16 @@ All mesh wide settings can be found in batman's own interface
folder:
# ls /sys/class/net/bat0/mesh/
# aggregated_ogms bonding fragmentation orig_interval
# vis_mode
# aggregated_ogms gw_bandwidth hop_penalty
# bonding gw_mode orig_interval
# fragmentation gw_sel_class vis_mode
There is a special folder for debugging informations:
# ls /sys/kernel/debug/batman_adv/bat0/
# originators socket transtable_global transtable_local
# vis_data
# gateways socket transtable_global vis_data
# originators softif_neigh transtable_local
Some of the files contain all sort of status information regard-
......@@ -230,9 +231,8 @@ CONTACT
Please send us comments, experiences, questions, anything :)
IRC: #batman on irc.freenode.org
Mailing-list: b.a.t.m.a.n@b.a.t.m.a.n@lists.open-mesh.org
(optional subscription at
https://lists.open-mesh.org/mm/listinfo/b.a.t.m.a.n)
Mailing-list: b.a.t.m.a.n@open-mesh.org (optional subscription
at https://lists.open-mesh.org/mm/listinfo/b.a.t.m.a.n)
You can also contact the Authors:
......
net/batman-adv/Makefile
View file @ a5e3c2aa
#
# Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
# Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
#
# Marek Lindner, Simon Wunderlich
#
......
net/batman-adv/aggregation.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/aggregation.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/bat_debugfs.c
View file @ a5e3c2aa
/*
* Copyright (C) 2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......@@ -52,7 +52,6 @@ static void emit_log_char(struct debug_log *debug_log, char c)
static int fdebug_log(struct debug_log *debug_log, char *fmt, ...)
{
int printed_len;
va_list args;
static char debug_log_buf[256];
char *p;
......@@ -62,8 +61,7 @@ static int fdebug_log(struct debug_log *debug_log, char *fmt, ...)
spin_lock_bh(&debug_log->lock);
va_start(args, fmt);
printed_len = vscnprintf(debug_log_buf, sizeof(debug_log_buf),
fmt, args);
vscnprintf(debug_log_buf, sizeof(debug_log_buf), fmt, args);
va_end(args);
for (p = debug_log_buf; *p != 0; p++)
......
net/batman-adv/bat_debugfs.h
View file @ a5e3c2aa
/*
* Copyright (C) 2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/bat_sysfs.c
View file @ a5e3c2aa
/*
* Copyright (C) 2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/bat_sysfs.h
View file @ a5e3c2aa
/*
* Copyright (C) 2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/bitarray.c
View file @ a5e3c2aa
/*
* Copyright (C) 2006-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2006-2011 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
*
......
net/batman-adv/bitarray.h
View file @ a5e3c2aa
/*
* Copyright (C) 2006-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2006-2011 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
*
......
net/batman-adv/gateway_client.c
View file @ a5e3c2aa
/*
* Copyright (C) 2009-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2009-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/gateway_client.h
View file @ a5e3c2aa
/*
* Copyright (C) 2009-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2009-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/gateway_common.c
View file @ a5e3c2aa
/*
* Copyright (C) 2009-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2009-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/gateway_common.h
View file @ a5e3c2aa
/*
* Copyright (C) 2009-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2009-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/hard-interface.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......@@ -34,6 +34,12 @@
/* protect update critical side of if_list - but not the content */
static DEFINE_SPINLOCK(if_list_lock);
static int batman_skb_recv(struct sk_buff *skb,
struct net_device *dev,
struct packet_type *ptype,
struct net_device *orig_dev);
static void hardif_free_rcu(struct rcu_head *rcu)
{
struct batman_if *batman_if;
......@@ -549,8 +555,9 @@ static int hard_if_event(struct notifier_block *this,
/* receive a packet with the batman ethertype coming on a hard
* interface */
int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype, struct net_device *orig_dev)
static int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype,
struct net_device *orig_dev)
{
struct bat_priv *bat_priv;
struct batman_packet *batman_packet;
......
net/batman-adv/hard-interface.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......@@ -35,10 +35,6 @@ struct batman_if *get_batman_if_by_netdev(struct net_device *net_dev);
int hardif_enable_interface(struct batman_if *batman_if, char *iface_name);
void hardif_disable_interface(struct batman_if *batman_if);
void hardif_remove_interfaces(void);
int batman_skb_recv(struct sk_buff *skb,
struct net_device *dev,
struct packet_type *ptype,
struct net_device *orig_dev);
int hardif_min_mtu(struct net_device *soft_iface);
void update_min_mtu(struct net_device *soft_iface);
......
net/batman-adv/hash.c
View file @ a5e3c2aa
/*
* Copyright (C) 2006-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2006-2011 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
*
......
net/batman-adv/hash.h
View file @ a5e3c2aa
/*
* Copyright (C) 2006-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2006-2011 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
*
......@@ -49,11 +49,6 @@ struct hashtable_t {
/* allocates and clears the hash */
struct hashtable_t *hash_new(int size);
/* remove element if you already found the element you want to delete and don't
* need the overhead to find it again with hash_remove(). But usually, you
* don't want to use this function, as it fiddles with hash-internals. */
void *hash_remove_element(struct hashtable_t *hash, struct element_t *elem);
/* free only the hashtable and the hash itself. */
void hash_destroy(struct hashtable_t *hash);
......
net/batman-adv/icmp_socket.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/icmp_socket.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/main.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/main.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......@@ -22,9 +22,6 @@
#ifndef _NET_BATMAN_ADV_MAIN_H_
#define _NET_BATMAN_ADV_MAIN_H_
/* Kernel Programming */
#define LINUX
#define DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, " \
"Simon Wunderlich <siwu@hrz.tu-chemnitz.de>"
#define DRIVER_DESC "B.A.T.M.A.N. advanced"
......@@ -54,7 +51,6 @@
#define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
#define PACKBUFF_SIZE 2000
#define LOG_BUF_LEN 8192 /* has to be a power of 2 */
#define VIS_INTERVAL 5000 /* 5 seconds */
......@@ -96,15 +92,11 @@
#define DBG_ROUTES 2 /* route or hna added / changed / deleted */
#define DBG_ALL 3
#define LOG_BUF_LEN 8192 /* has to be a power of 2 */
/*
* Vis
*/
/* #define VIS_SUBCLUSTERS_DISABLED */
/*
* Kernel headers
*/
......@@ -158,13 +150,6 @@ static inline void bat_dbg(char type __always_unused,
}
#endif
#define bat_warning(net_dev, fmt, arg...) \
do { \
struct net_device *_netdev = (net_dev); \
struct bat_priv *_batpriv = netdev_priv(_netdev); \
bat_dbg(DBG_ALL, _batpriv, fmt, ## arg); \
pr_warning("%s: " fmt, _netdev->name, ## arg); \
} while (0)
#define bat_info(net_dev, fmt, arg...) \
do { \
struct net_device *_netdev = (net_dev); \
......
net/batman-adv/originator.c
View file @ a5e3c2aa
/*
* Copyright (C) 2009-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2009-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......@@ -247,7 +247,7 @@ static bool purge_orig_node(struct bat_priv *bat_priv,
orig_node->hna_buff_len);
/* update bonding candidates, we could have lost
* some candidates. */
update_bonding_candidates(bat_priv, orig_node);
update_bonding_candidates(orig_node);
}
}
......
net/batman-adv/originator.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/packet.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......@@ -50,6 +50,7 @@
/* fragmentation defines */
#define UNI_FRAG_HEAD 0x01
#define UNI_FRAG_LARGETAIL 0x02
struct batman_packet {
uint8_t packet_type;
......
net/batman-adv/ring_buffer.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/ring_buffer.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/routing.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......@@ -433,8 +433,7 @@ static char count_real_packets(struct ethhdr *ethhdr,
}
/* copy primary address for bonding */
static void mark_bonding_address(struct bat_priv *bat_priv,
struct orig_node *orig_node,
static void mark_bonding_address(struct orig_node *orig_node,
struct orig_node *orig_neigh_node,
struct batman_packet *batman_packet)
......@@ -447,8 +446,7 @@ static void mark_bonding_address(struct bat_priv *bat_priv,
}
/* mark possible bond.candidates in the neighbor list */
void update_bonding_candidates(struct bat_priv *bat_priv,
struct orig_node *orig_node)
void update_bonding_candidates(struct orig_node *orig_node)
{
int candidates;
int interference_candidate;
......@@ -730,9 +728,8 @@ void receive_bat_packet(struct ethhdr *ethhdr,
update_orig(bat_priv, orig_node, ethhdr, batman_packet,
if_incoming, hna_buff, hna_buff_len, is_duplicate);
mark_bonding_address(bat_priv, orig_node,
orig_neigh_node, batman_packet);
update_bonding_candidates(bat_priv, orig_node);
mark_bonding_address(orig_node, orig_neigh_node, batman_packet);
update_bonding_candidates(orig_node);
/* is single hop (direct) neighbor */
if (is_single_hop_neigh) {
......@@ -810,13 +807,11 @@ static int recv_my_icmp_packet(struct bat_priv *bat_priv,
{
struct orig_node *orig_node;
struct icmp_packet_rr *icmp_packet;
struct ethhdr *ethhdr;
struct batman_if *batman_if;
int ret;
uint8_t dstaddr[ETH_ALEN];
icmp_packet = (struct icmp_packet_rr *)skb->data;
ethhdr = (struct ethhdr *)skb_mac_header(skb);
/* add data to device queue */
if (icmp_packet->msg_type != ECHO_REQUEST) {
......@@ -848,7 +843,6 @@ static int recv_my_icmp_packet(struct bat_priv *bat_priv,
return NET_RX_DROP;
icmp_packet = (struct icmp_packet_rr *)skb->data;
ethhdr = (struct ethhdr *)skb_mac_header(skb);
memcpy(icmp_packet->dst, icmp_packet->orig, ETH_ALEN);
memcpy(icmp_packet->orig,
......@@ -866,17 +860,15 @@ static int recv_my_icmp_packet(struct bat_priv *bat_priv,
}
static int recv_icmp_ttl_exceeded(struct bat_priv *bat_priv,
struct sk_buff *skb, size_t icmp_len)
struct sk_buff *skb)
{
struct orig_node *orig_node;
struct icmp_packet *icmp_packet;
struct ethhdr *ethhdr;
struct batman_if *batman_if;
int ret;
uint8_t dstaddr[ETH_ALEN];
icmp_packet = (struct icmp_packet *)skb->data;
ethhdr = (struct ethhdr *)skb_mac_header(skb);
/* send TTL exceeded if packet is an echo request (traceroute) */
if (icmp_packet->msg_type != ECHO_REQUEST) {
......@@ -909,7 +901,6 @@ static int recv_icmp_ttl_exceeded(struct bat_priv *bat_priv,
return NET_RX_DROP;
icmp_packet = (struct icmp_packet *) skb->data;
ethhdr = (struct ethhdr *)skb_mac_header(skb);
memcpy(icmp_packet->dst, icmp_packet->orig, ETH_ALEN);
memcpy(icmp_packet->orig,
......@@ -978,7 +969,7 @@ int recv_icmp_packet(struct sk_buff *skb, struct batman_if *recv_if)
/* TTL exceeded */
if (icmp_packet->ttl < 2)
return recv_icmp_ttl_exceeded(bat_priv, skb, hdr_size);
return recv_icmp_ttl_exceeded(bat_priv, skb);
ret = NET_RX_DROP;
......@@ -1001,7 +992,6 @@ int recv_icmp_packet(struct sk_buff *skb, struct batman_if *recv_if)
return NET_RX_DROP;
icmp_packet = (struct icmp_packet_rr *)skb->data;
ethhdr = (struct ethhdr *)skb_mac_header(skb);
/* decrement ttl */
icmp_packet->ttl--;
......@@ -1193,7 +1183,7 @@ int route_unicast_packet(struct sk_buff *skb, struct batman_if *recv_if,
dstaddr);
if (unicast_packet->packet_type == BAT_UNICAST_FRAG &&
2 * skb->len - hdr_size <= batman_if->net_dev->mtu) {
frag_can_reassemble(skb, batman_if->net_dev->mtu)) {
ret = frag_reassemble_skb(skb, bat_priv, &new_skb);
......
net/batman-adv/routing.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......@@ -42,7 +42,6 @@ int recv_vis_packet(struct sk_buff *skb, struct batman_if *recv_if);
int recv_bat_packet(struct sk_buff *skb, struct batman_if *recv_if);
struct neigh_node *find_router(struct bat_priv *bat_priv,
struct orig_node *orig_node, struct batman_if *recv_if);
void update_bonding_candidates(struct bat_priv *bat_priv,
struct orig_node *orig_node);
void update_bonding_candidates(struct orig_node *orig_node);
#endif /* _NET_BATMAN_ADV_ROUTING_H_ */
net/batman-adv/send.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......@@ -49,7 +49,7 @@ static unsigned long own_send_time(struct bat_priv *bat_priv)
}
/* when do we schedule a forwarded packet to be sent */
static unsigned long forward_send_time(struct bat_priv *bat_priv)
static unsigned long forward_send_time(void)
{
return jiffies + msecs_to_jiffies(random32() % (JITTER/2));
}
......@@ -356,7 +356,7 @@ void schedule_forward_packet(struct orig_node *orig_node,
else
batman_packet->flags &= ~DIRECTLINK;
send_time = forward_send_time(bat_priv);
send_time = forward_send_time();
add_bat_packet_to_list(bat_priv,
(unsigned char *)batman_packet,
sizeof(struct batman_packet) + hna_buff_len,
......
net/batman-adv/send.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/soft-interface.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/soft-interface.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
......
net/batman-adv/translation-table.c
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/translation-table.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/types.h
View file @ a5e3c2aa
/*
* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
......
net/batman-adv/unicast.c
View file @ a5e3c2aa
/*
* Copyright (C) 2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
*
* Andreas Langer
*
......@@ -224,7 +224,8 @@ int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
struct unicast_frag_packet *frag1, *frag2;
int uc_hdr_len = sizeof(struct unicast_packet);
int ucf_hdr_len = sizeof(struct unicast_frag_packet);
int data_len = skb->len;
int data_len = skb->len - uc_hdr_len;
int large_tail = 0;
if (!bat_priv->primary_if)
goto dropped;
......@@ -232,10 +233,11 @@ int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
frag_skb = dev_alloc_skb(data_len - (data_len / 2) + ucf_hdr_len);
if (!frag_skb)
goto dropped;
skb_reserve(frag_skb, ucf_hdr_len);
unicast_packet = (struct unicast_packet *) skb->data;
memcpy(&tmp_uc, unicast_packet, uc_hdr_len);
skb_split(skb, frag_skb, data_len / 2);
skb_split(skb, frag_skb, data_len / 2 + uc_hdr_len);
if (my_skb_head_push(skb, ucf_hdr_len - uc_hdr_len) < 0 ||
my_skb_head_push(frag_skb, ucf_hdr_len) < 0)
......@@ -253,8 +255,11 @@ int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
memcpy(frag1->orig, bat_priv->primary_if->net_dev->dev_addr, ETH_ALEN);
memcpy(frag2, frag1, sizeof(struct unicast_frag_packet));
frag1->flags |= UNI_FRAG_HEAD;
frag2->flags &= ~UNI_FRAG_HEAD;
if (data_len & 1)
large_tail = UNI_FRAG_LARGETAIL;
frag1->flags = UNI_FRAG_HEAD | large_tail;
frag2->flags = large_tail;
frag1->seqno = htons((uint16_t)atomic_inc_return(
&batman_if->frag_seqno));
......
net/batman-adv/unicast.h
View file @ a5e3c2aa
/*
* Copyright (C) 2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
*
* Andreas Langer
*
......@@ -22,6 +22,8 @@
#ifndef _NET_BATMAN_ADV_UNICAST_H_
#define _NET_BATMAN_ADV_UNICAST_H_
#include "packet.h"
#define FRAG_TIMEOUT 10000 /* purge frag list entrys after time in ms */
#define FRAG_BUFFER_SIZE 6 /* number of list elements in buffer */
......@@ -32,4 +34,25 @@ int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv);
int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
struct batman_if *batman_if, uint8_t dstaddr[]);
static inline int frag_can_reassemble(struct sk_buff *skb, int mtu)
{
struct unicast_frag_packet *unicast_packet;
int uneven_correction = 0;
unsigned int merged_size;
unicast_packet = (struct unicast_frag_packet *)skb->data;
if (unicast_packet->flags & UNI_FRAG_LARGETAIL) {
if (unicast_packet->flags & UNI_FRAG_HEAD)
uneven_correction = 1;
else
uneven_correction = -1;
}
merged_size = (skb->len - sizeof(struct unicast_frag_packet)) * 2;
merged_size += sizeof(struct unicast_packet) + uneven_correction;
return merged_size <= mtu;
}
#endif /* _NET_BATMAN_ADV_UNICAST_H_ */
net/batman-adv/vis.c
View file @ a5e3c2aa
/*
* Copyright (C) 2008-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2008-2011 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich
*
......
net/batman-adv/vis.h
View file @ a5e3c2aa
/*
* Copyright (C) 2008-2010 B.A.T.M.A.N. contributors:
* Copyright (C) 2008-2011 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
*
......
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