004e86fc58
If the skb is fragmented, the checksum must be computed on the individual fragments, just using skb->data may fail on fragmented data. Instead of doing linearizing the packet, use the new batadv_crc32 to do that more efficiently- it should not hurt replacing the old crc16 by the new crc32. Reported-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
106 lines
3 KiB
C
106 lines
3 KiB
C
/* Copyright (C) 2011-2012 B.A.T.M.A.N. contributors:
|
|
*
|
|
* Simon Wunderlich
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef _NET_BATMAN_ADV_BLA_H_
|
|
#define _NET_BATMAN_ADV_BLA_H_
|
|
|
|
#ifdef CONFIG_BATMAN_ADV_BLA
|
|
int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid,
|
|
bool is_bcast);
|
|
int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid);
|
|
int batadv_bla_is_backbone_gw(struct sk_buff *skb,
|
|
struct batadv_orig_node *orig_node, int hdr_size);
|
|
int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
|
|
int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
|
|
void *offset);
|
|
int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig);
|
|
int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
|
|
struct sk_buff *skb);
|
|
void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
|
|
struct batadv_hard_iface *primary_if,
|
|
struct batadv_hard_iface *oldif);
|
|
int batadv_bla_init(struct batadv_priv *bat_priv);
|
|
void batadv_bla_free(struct batadv_priv *bat_priv);
|
|
|
|
#define BATADV_BLA_CRC_INIT 0
|
|
#else /* ifdef CONFIG_BATMAN_ADV_BLA */
|
|
|
|
static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
|
|
struct sk_buff *skb, short vid, bool is_bcast)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
|
|
struct sk_buff *skb, short vid)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
|
|
struct batadv_orig_node *orig_node,
|
|
int hdr_size)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
|
|
void *offset)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
|
|
void *offset)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
|
|
uint8_t *orig)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
|
|
struct sk_buff *skb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
|
|
struct batadv_hard_iface *primary_if,
|
|
struct batadv_hard_iface *oldif)
|
|
{
|
|
}
|
|
|
|
static inline int batadv_bla_init(struct batadv_priv *bat_priv)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static inline void batadv_bla_free(struct batadv_priv *bat_priv)
|
|
{
|
|
}
|
|
|
|
#endif /* ifdef CONFIG_BATMAN_ADV_BLA */
|
|
|
|
#endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
|