-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Staging: batman-adv: refactoring unicast payload code
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
- Loading branch information
Marek Lindner
authored and
Greg Kroah-Hartman
committed
Sep 5, 2010
1 parent
7d02674
commit 24c76fc
Showing
4 changed files
with
128 additions
and
62 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| /* | ||
| * 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 "hash.h" | ||
| #include "translation-table.h" | ||
| #include "routing.h" | ||
| #include "hard-interface.h" | ||
|
|
||
| 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; | ||
| uint8_t dstaddr[6]; | ||
| unsigned long flags; | ||
|
|
||
| spin_lock_irqsave(&orig_hash_lock, flags); | ||
|
|
||
| /* get routing information */ | ||
| 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 (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; | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| /* | ||
| * 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 | ||
| * | ||
| */ | ||
|
|
||
| #ifndef _NET_BATMAN_ADV_UNICAST_H_ | ||
| #define _NET_BATMAN_ADV_UNICAST_H_ | ||
|
|
||
| int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv); | ||
|
|
||
| #endif /* _NET_BATMAN_ADV_UNICAST_H_ */ |