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staging: batman-adv: Use linux/etherdevice.h address helper functions

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Replace custom ethernet address check functions by calls to the helpers
in linux/etherdevice.h

In one case where the address was tested for broadcast and multicast
address, the broadcast address check can be omitted as broadcast is also
a multicast address.

The patch is only compile-tested.

Cc: Marek Lindner <lindner_marek@yahoo.de>
Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Tobias Klauser 2010-11-03 10:59:02 +01:00 committed by Greg Kroah-Hartman
parent e09f138e06
commit 5712dc7fc8
5 changed files with 13 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/staging/batman-adv/main.c
View File

@ -149,7 +149,7 @@ void dec_module_count(void)
int compare_orig(void *data1, void *data2) int compare_orig(void *data1, void *data2)
{ {
return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0); return (compare_ether_addr(data1, data2) == 0 ? 1 : 0);
} }
/* hashfunction to choose an entry in a hash table of given size */ /* hashfunction to choose an entry in a hash table of given size */
@ -192,16 +192,6 @@ int is_my_mac(uint8_t *addr)
} }
int is_bcast(uint8_t *addr)
{
return (addr[0] == (uint8_t)0xff) && (addr[1] == (uint8_t)0xff);
}
int is_mcast(uint8_t *addr)
{
return *addr & 0x01;
}
module_init(batman_init); module_init(batman_init);
module_exit(batman_exit); module_exit(batman_exit);

3
drivers/staging/batman-adv/main.h
View File

@ -109,6 +109,7 @@
#include <linux/mutex.h> /* mutex */ #include <linux/mutex.h> /* mutex */
#include <linux/module.h> /* needed by all modules */ #include <linux/module.h> /* needed by all modules */
#include <linux/netdevice.h> /* netdevice */ #include <linux/netdevice.h> /* netdevice */
#include <linux/etherdevice.h>
#include <linux/if_ether.h> /* ethernet header */ #include <linux/if_ether.h> /* ethernet header */
#include <linux/poll.h> /* poll_table */ #include <linux/poll.h> /* poll_table */
#include <linux/kthread.h> /* kernel threads */ #include <linux/kthread.h> /* kernel threads */
@ -138,8 +139,6 @@ void dec_module_count(void);
int compare_orig(void *data1, void *data2); int compare_orig(void *data1, void *data2);
int choose_orig(void *data, int32_t size); int choose_orig(void *data, int32_t size);
int is_my_mac(uint8_t *addr); int is_my_mac(uint8_t *addr);
int is_bcast(uint8_t *addr);
int is_mcast(uint8_t *addr);
#ifdef CONFIG_BATMAN_ADV_DEBUG #ifdef CONFIG_BATMAN_ADV_DEBUG
int debug_log(struct bat_priv *bat_priv, char *fmt, ...); int debug_log(struct bat_priv *bat_priv, char *fmt, ...);

16
drivers/staging/batman-adv/routing.c
View File

@ -756,11 +756,11 @@ int recv_bat_packet(struct sk_buff *skb, struct batman_if *batman_if)
ethhdr = (struct ethhdr *)skb_mac_header(skb); ethhdr = (struct ethhdr *)skb_mac_header(skb);
/* packet with broadcast indication but unicast recipient */ /* packet with broadcast indication but unicast recipient */
if (!is_bcast(ethhdr->h_dest)) if (!is_broadcast_ether_addr(ethhdr->h_dest))
return NET_RX_DROP; return NET_RX_DROP;
/* packet with broadcast sender address */ /* packet with broadcast sender address */
if (is_bcast(ethhdr->h_source)) if (is_broadcast_ether_addr(ethhdr->h_source))
return NET_RX_DROP; return NET_RX_DROP;
/* create a copy of the skb, if needed, to modify it. */ /* create a copy of the skb, if needed, to modify it. */
@ -933,11 +933,11 @@ int recv_icmp_packet(struct sk_buff *skb, struct batman_if *recv_if)
ethhdr = (struct ethhdr *)skb_mac_header(skb); ethhdr = (struct ethhdr *)skb_mac_header(skb);
/* packet with unicast indication but broadcast recipient */ /* packet with unicast indication but broadcast recipient */
if (is_bcast(ethhdr->h_dest)) if (is_broadcast_ether_addr(ethhdr->h_dest))
return NET_RX_DROP; return NET_RX_DROP;
/* packet with broadcast sender address */ /* packet with broadcast sender address */
if (is_bcast(ethhdr->h_source)) if (is_broadcast_ether_addr(ethhdr->h_source))
return NET_RX_DROP; return NET_RX_DROP;
/* not for me */ /* not for me */
@ -1107,11 +1107,11 @@ static int check_unicast_packet(struct sk_buff *skb, int hdr_size)
ethhdr = (struct ethhdr *)skb_mac_header(skb); ethhdr = (struct ethhdr *)skb_mac_header(skb);
/* packet with unicast indication but broadcast recipient */ /* packet with unicast indication but broadcast recipient */
if (is_bcast(ethhdr->h_dest)) if (is_broadcast_ether_addr(ethhdr->h_dest))
return -1; return -1;
/* packet with broadcast sender address */ /* packet with broadcast sender address */
if (is_bcast(ethhdr->h_source)) if (is_broadcast_ether_addr(ethhdr->h_source))
return -1; return -1;
/* not for me */ /* not for me */
@ -1283,11 +1283,11 @@ int recv_bcast_packet(struct sk_buff *skb, struct batman_if *recv_if)
ethhdr = (struct ethhdr *)skb_mac_header(skb); ethhdr = (struct ethhdr *)skb_mac_header(skb);
/* packet with broadcast indication but unicast recipient */ /* packet with broadcast indication but unicast recipient */
if (!is_bcast(ethhdr->h_dest)) if (!is_broadcast_ether_addr(ethhdr->h_dest))
return NET_RX_DROP; return NET_RX_DROP;
/* packet with broadcast sender address */ /* packet with broadcast sender address */
if (is_bcast(ethhdr->h_source)) if (is_broadcast_ether_addr(ethhdr->h_source))
return NET_RX_DROP; return NET_RX_DROP;
/* ignore broadcasts sent by myself */ /* ignore broadcasts sent by myself */

2
drivers/staging/batman-adv/soft-interface.c
View File

@ -140,7 +140,7 @@ int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
hna_local_add(soft_iface, ethhdr->h_source); hna_local_add(soft_iface, ethhdr->h_source);
/* ethernet packet should be broadcasted */ /* ethernet packet should be broadcasted */
if (is_bcast(ethhdr->h_dest) || is_mcast(ethhdr->h_dest)) { if (is_multicast_ether_addr(ethhdr->h_dest)) {
if (!bat_priv->primary_if) if (!bat_priv->primary_if)
goto dropped; goto dropped;

4
drivers/staging/batman-adv/vis.c
View File

@ -469,7 +469,7 @@ void receive_client_update_packet(struct bat_priv *bat_priv,
int are_target = 0; int are_target = 0;
/* clients shall not broadcast. */ /* clients shall not broadcast. */
if (is_bcast(vis_packet->target_orig)) if (is_broadcast_ether_addr(vis_packet->target_orig))
return; return;
/* Are we the target for this VIS packet? */ /* Are we the target for this VIS packet? */
@ -746,7 +746,7 @@ static void send_vis_packet(struct bat_priv *bat_priv, struct vis_info *info)
ETH_ALEN); ETH_ALEN);
packet->ttl--; packet->ttl--;
if (is_bcast(packet->target_orig)) if (is_broadcast_ether_addr(packet->target_orig))
broadcast_vis_packet(bat_priv, info); broadcast_vis_packet(bat_priv, info);
else else
unicast_vis_packet(bat_priv, info); unicast_vis_packet(bat_priv, info);