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This feature/cleanup patchset includes the following patches: 

- bump version strings, by Simon Wunderlich
 
  - de-inline hash functions to save memory footprint, by Denys Vlasenko
 
  - Add License information to various files, by Sven Eckelmann (3 patches)
 
  - Change batman_adv.h from ISC to MIT, by Sven Eckelmann
 
  - Improve various includes, by Sven Eckelmann (5 patches)
 
  - Lots of kernel-doc work by Sven Eckelmann (8 patches)
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Merge tag 'batadv-next-for-davem-20171220' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
This feature/cleanup patchset includes the following patches:

 - bump version strings, by Simon Wunderlich

 - de-inline hash functions to save memory footprint, by Denys Vlasenko

 - Add License information to various files, by Sven Eckelmann (3 patches)

 - Change batman_adv.h from ISC to MIT, by Sven Eckelmann

 - Improve various includes, by Sven Eckelmann (5 patches)

 - Lots of kernel-doc work by Sven Eckelmann (8 patches)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-12-20 14:33:03 -05:00
parent b2597f78d4 ff15c27c97
commit a943e8bc05
62 changed files with 2852 additions and 1353 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/networking/batman-adv.rst
View File

@ -1,3 +1,5 @@
.. SPDX-License-Identifier: GPL-2.0
==========
batman-adv
==========

27
include/uapi/linux/batman_adv.h
View File

@ -1,18 +1,25 @@
/* SPDX-License-Identifier: MIT */
/* Copyright (C) 2016-2017 B.A.T.M.A.N. contributors:
*
* Matthias Schiffer
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _UAPI_LINUX_BATMAN_ADV_H_

17
net/batman-adv/Kconfig
View File

@ -1,3 +1,20 @@
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
#
# Marek Lindner, 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, see <http://www.gnu.org/licenses/>.
#
# B.A.T.M.A.N meshing protocol
#

2
net/batman-adv/Makefile
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@ -1,4 +1,4 @@
#
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
#
# Marek Lindner, Simon Wunderlich

35
net/batman-adv/bat_algo.c
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@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -37,7 +38,8 @@ char batadv_routing_algo[20] = "BATMAN_IV";
static struct hlist_head batadv_algo_list;
/**
* batadv_algo_init - Initialize batman-adv algorithm management data structures
* batadv_algo_init() - Initialize batman-adv algorithm management data
* structures
*/
void batadv_algo_init(void)
{
@ -59,6 +61,12 @@ static struct batadv_algo_ops *batadv_algo_get(char *name)
return bat_algo_ops;
}
/**
* batadv_algo_register() - Register callbacks for a mesh algorithm
* @bat_algo_ops: mesh algorithm callbacks to add
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_algo_register(struct batadv_algo_ops *bat_algo_ops)
{
struct batadv_algo_ops *bat_algo_ops_tmp;
@ -88,6 +96,19 @@ int batadv_algo_register(struct batadv_algo_ops *bat_algo_ops)
return 0;
}
/**
* batadv_algo_select() - Select algorithm of soft interface
* @bat_priv: the bat priv with all the soft interface information
* @name: name of the algorithm to select
*
* The algorithm callbacks for the soft interface will be set when the algorithm
* with the correct name was found. Any previous selected algorithm will not be
* deinitialized and the new selected algorithm will also not be initialized.
* It is therefore not allowed to call batadv_algo_select outside the creation
* function of the soft interface.
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_algo_select(struct batadv_priv *bat_priv, char *name)
{
struct batadv_algo_ops *bat_algo_ops;
@ -102,6 +123,14 @@ int batadv_algo_select(struct batadv_priv *bat_priv, char *name)
}
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_algo_seq_print_text() - Print the supported algorithms in a seq file
* @seq: seq file to print on
* @offset: not used
*
* Return: always 0
*/
int batadv_algo_seq_print_text(struct seq_file *seq, void *offset)
{
struct batadv_algo_ops *bat_algo_ops;
@ -148,7 +177,7 @@ module_param_cb(routing_algo, &batadv_param_ops_ra, &batadv_param_string_ra,
0644);
/**
* batadv_algo_dump_entry - fill in information about one supported routing
* batadv_algo_dump_entry() - fill in information about one supported routing
* algorithm
* @msg: netlink message to be sent back
* @portid: Port to reply to
@ -179,7 +208,7 @@ static int batadv_algo_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_algo_dump - fill in information about supported routing
* batadv_algo_dump() - fill in information about supported routing
* algorithms
* @msg: netlink message to be sent back
* @cb: Parameters to the netlink request

1
net/batman-adv/bat_algo.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Linus Lüssing

105
net/batman-adv/bat_iv_ogm.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -26,7 +27,7 @@
#include <linux/cache.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/init.h>
#include <linux/jiffies.h>
@ -72,21 +73,28 @@ static void batadv_iv_send_outstanding_bat_ogm_packet(struct work_struct *work);
/**
* enum batadv_dup_status - duplicate status
* @BATADV_NO_DUP: the packet is no duplicate
* @BATADV_ORIG_DUP: OGM is a duplicate in the originator (but not for the
* neighbor)
* @BATADV_NEIGH_DUP: OGM is a duplicate for the neighbor
* @BATADV_PROTECTED: originator is currently protected (after reboot)
*/
enum batadv_dup_status {
/** @BATADV_NO_DUP: the packet is no duplicate */
BATADV_NO_DUP = 0,
/**
* @BATADV_ORIG_DUP: OGM is a duplicate in the originator (but not for
* the neighbor)
*/
BATADV_ORIG_DUP,
/** @BATADV_NEIGH_DUP: OGM is a duplicate for the neighbor */
BATADV_NEIGH_DUP,
/**
* @BATADV_PROTECTED: originator is currently protected (after reboot)
*/
BATADV_PROTECTED,
};
/**
* batadv_ring_buffer_set - update the ring buffer with the given value
* batadv_ring_buffer_set() - update the ring buffer with the given value
* @lq_recv: pointer to the ring buffer
* @lq_index: index to store the value at
* @value: value to store in the ring buffer
@ -98,7 +106,7 @@ static void batadv_ring_buffer_set(u8 lq_recv[], u8 *lq_index, u8 value)
}
/**
* batadv_ring_buffer_avg - compute the average of all non-zero values stored
* batadv_ring_buffer_avg() - compute the average of all non-zero values stored
* in the given ring buffer
* @lq_recv: pointer to the ring buffer
*
@ -130,7 +138,7 @@ static u8 batadv_ring_buffer_avg(const u8 lq_recv[])
}
/**
* batadv_iv_ogm_orig_free - free the private resources allocated for this
* batadv_iv_ogm_orig_free() - free the private resources allocated for this
* orig_node
* @orig_node: the orig_node for which the resources have to be free'd
*/
@ -141,8 +149,8 @@ static void batadv_iv_ogm_orig_free(struct batadv_orig_node *orig_node)
}
/**
* batadv_iv_ogm_orig_add_if - change the private structures of the orig_node to
* include the new hard-interface
* batadv_iv_ogm_orig_add_if() - change the private structures of the orig_node
* to include the new hard-interface
* @orig_node: the orig_node that has to be changed
* @max_if_num: the current amount of interfaces
*
@ -186,7 +194,7 @@ unlock:
}
/**
* batadv_iv_ogm_drop_bcast_own_entry - drop section of bcast_own
* batadv_iv_ogm_drop_bcast_own_entry() - drop section of bcast_own
* @orig_node: the orig_node that has to be changed
* @max_if_num: the current amount of interfaces
* @del_if_num: the index of the interface being removed
@ -224,7 +232,7 @@ batadv_iv_ogm_drop_bcast_own_entry(struct batadv_orig_node *orig_node,
}
/**
* batadv_iv_ogm_drop_bcast_own_sum_entry - drop section of bcast_own_sum
* batadv_iv_ogm_drop_bcast_own_sum_entry() - drop section of bcast_own_sum
* @orig_node: the orig_node that has to be changed
* @max_if_num: the current amount of interfaces
* @del_if_num: the index of the interface being removed
@ -259,8 +267,8 @@ batadv_iv_ogm_drop_bcast_own_sum_entry(struct batadv_orig_node *orig_node,
}
/**
* batadv_iv_ogm_orig_del_if - change the private structures of the orig_node to
* exclude the removed interface
* batadv_iv_ogm_orig_del_if() - change the private structures of the orig_node
* to exclude the removed interface
* @orig_node: the orig_node that has to be changed
* @max_if_num: the current amount of interfaces
* @del_if_num: the index of the interface being removed
@ -290,7 +298,8 @@ static int batadv_iv_ogm_orig_del_if(struct batadv_orig_node *orig_node,
}
/**
* batadv_iv_ogm_orig_get - retrieve or create (if does not exist) an originator
* batadv_iv_ogm_orig_get() - retrieve or create (if does not exist) an
* originator
* @bat_priv: the bat priv with all the soft interface information
* @addr: mac address of the originator
*
@ -447,7 +456,7 @@ static u8 batadv_hop_penalty(u8 tq, const struct batadv_priv *bat_priv)
}
/**
* batadv_iv_ogm_aggr_packet - checks if there is another OGM attached
* batadv_iv_ogm_aggr_packet() - checks if there is another OGM attached
* @buff_pos: current position in the skb
* @packet_len: total length of the skb
* @tvlv_len: tvlv length of the previously considered OGM
@ -557,7 +566,7 @@ static void batadv_iv_ogm_emit(struct batadv_forw_packet *forw_packet)
}
/**
* batadv_iv_ogm_can_aggregate - find out if an OGM can be aggregated on an
* batadv_iv_ogm_can_aggregate() - find out if an OGM can be aggregated on an
* existing forward packet
* @new_bat_ogm_packet: OGM packet to be aggregated
* @bat_priv: the bat priv with all the soft interface information
@ -660,7 +669,7 @@ out:
}
/**
* batadv_iv_ogm_aggregate_new - create a new aggregated packet and add this
* batadv_iv_ogm_aggregate_new() - create a new aggregated packet and add this
* packet to it.
* @packet_buff: pointer to the OGM
* @packet_len: (total) length of the OGM
@ -743,7 +752,7 @@ static void batadv_iv_ogm_aggregate(struct batadv_forw_packet *forw_packet_aggr,
}
/**
* batadv_iv_ogm_queue_add - queue up an OGM for transmission
* batadv_iv_ogm_queue_add() - queue up an OGM for transmission
* @bat_priv: the bat priv with all the soft interface information
* @packet_buff: pointer to the OGM
* @packet_len: (total) length of the OGM
@ -869,8 +878,8 @@ static void batadv_iv_ogm_forward(struct batadv_orig_node *orig_node,
}
/**
* batadv_iv_ogm_slide_own_bcast_window - bitshift own OGM broadcast windows for
* the given interface
* batadv_iv_ogm_slide_own_bcast_window() - bitshift own OGM broadcast windows
* for the given interface
* @hard_iface: the interface for which the windows have to be shifted
*/
static void
@ -987,7 +996,7 @@ out:
}
/**
* batadv_iv_ogm_orig_update - use OGM to update corresponding data in an
* batadv_iv_ogm_orig_update() - use OGM to update corresponding data in an
* originator
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: the orig node who originally emitted the ogm packet
@ -1152,7 +1161,7 @@ out:
}
/**
* batadv_iv_ogm_calc_tq - calculate tq for current received ogm packet
* batadv_iv_ogm_calc_tq() - calculate tq for current received ogm packet
* @orig_node: the orig node who originally emitted the ogm packet
* @orig_neigh_node: the orig node struct of the neighbor who sent the packet
* @batadv_ogm_packet: the ogm packet
@ -1298,7 +1307,7 @@ out:
}
/**
* batadv_iv_ogm_update_seqnos - process a batman packet for all interfaces,
* batadv_iv_ogm_update_seqnos() - process a batman packet for all interfaces,
* adjust the sequence number and find out whether it is a duplicate
* @ethhdr: ethernet header of the packet
* @batadv_ogm_packet: OGM packet to be considered
@ -1401,7 +1410,8 @@ out:
}
/**
* batadv_iv_ogm_process_per_outif - process a batman iv OGM for an outgoing if
* batadv_iv_ogm_process_per_outif() - process a batman iv OGM for an outgoing
* interface
* @skb: the skb containing the OGM
* @ogm_offset: offset from skb->data to start of ogm header
* @orig_node: the (cached) orig node for the originator of this OGM
@ -1608,7 +1618,7 @@ out:
}
/**
* batadv_iv_ogm_process - process an incoming batman iv OGM
* batadv_iv_ogm_process() - process an incoming batman iv OGM
* @skb: the skb containing the OGM
* @ogm_offset: offset to the OGM which should be processed (for aggregates)
* @if_incoming: the interface where this packet was receved
@ -1861,7 +1871,7 @@ free_skb:
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_iv_ogm_orig_print_neigh - print neighbors for the originator table
* batadv_iv_ogm_orig_print_neigh() - print neighbors for the originator table
* @orig_node: the orig_node for which the neighbors are printed
* @if_outgoing: outgoing interface for these entries
* @seq: debugfs table seq_file struct
@ -1890,7 +1900,7 @@ batadv_iv_ogm_orig_print_neigh(struct batadv_orig_node *orig_node,
}
/**
* batadv_iv_ogm_orig_print - print the originator table
* batadv_iv_ogm_orig_print() - print the originator table
* @bat_priv: the bat priv with all the soft interface information
* @seq: debugfs table seq_file struct
* @if_outgoing: the outgoing interface for which this should be printed
@ -1960,7 +1970,7 @@ next:
#endif
/**
* batadv_iv_ogm_neigh_get_tq_avg - Get the TQ average for a neighbour on a
* batadv_iv_ogm_neigh_get_tq_avg() - Get the TQ average for a neighbour on a
* given outgoing interface.
* @neigh_node: Neighbour of interest
* @if_outgoing: Outgoing interface of interest
@ -1986,7 +1996,7 @@ batadv_iv_ogm_neigh_get_tq_avg(struct batadv_neigh_node *neigh_node,
}
/**
* batadv_iv_ogm_orig_dump_subentry - Dump an originator subentry into a
* batadv_iv_ogm_orig_dump_subentry() - Dump an originator subentry into a
* message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
@ -2048,7 +2058,7 @@ batadv_iv_ogm_orig_dump_subentry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_iv_ogm_orig_dump_entry - Dump an originator entry into a message
* batadv_iv_ogm_orig_dump_entry() - Dump an originator entry into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -2110,7 +2120,7 @@ batadv_iv_ogm_orig_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_iv_ogm_orig_dump_bucket - Dump an originator bucket into a
* batadv_iv_ogm_orig_dump_bucket() - Dump an originator bucket into a
* message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
@ -2153,7 +2163,7 @@ batadv_iv_ogm_orig_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_iv_ogm_orig_dump - Dump the originators into a message
* batadv_iv_ogm_orig_dump() - Dump the originators into a message
* @msg: Netlink message to dump into
* @cb: Control block containing additional options
* @bat_priv: The bat priv with all the soft interface information
@ -2190,7 +2200,7 @@ batadv_iv_ogm_orig_dump(struct sk_buff *msg, struct netlink_callback *cb,
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_iv_hardif_neigh_print - print a single hop neighbour node
* batadv_iv_hardif_neigh_print() - print a single hop neighbour node
* @seq: neighbour table seq_file struct
* @hardif_neigh: hardif neighbour information
*/
@ -2209,7 +2219,7 @@ batadv_iv_hardif_neigh_print(struct seq_file *seq,
}
/**
* batadv_iv_ogm_neigh_print - print the single hop neighbour list
* batadv_iv_ogm_neigh_print() - print the single hop neighbour list
* @bat_priv: the bat priv with all the soft interface information
* @seq: neighbour table seq_file struct
*/
@ -2242,7 +2252,7 @@ static void batadv_iv_neigh_print(struct batadv_priv *bat_priv,
#endif
/**
* batadv_iv_ogm_neigh_diff - calculate tq difference of two neighbors
* batadv_iv_ogm_neigh_diff() - calculate tq difference of two neighbors
* @neigh1: the first neighbor object of the comparison
* @if_outgoing1: outgoing interface for the first neighbor
* @neigh2: the second neighbor object of the comparison
@ -2287,7 +2297,7 @@ out:
}
/**
* batadv_iv_ogm_neigh_dump_neigh - Dump a neighbour into a netlink message
* batadv_iv_ogm_neigh_dump_neigh() - Dump a neighbour into a netlink message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -2326,7 +2336,7 @@ batadv_iv_ogm_neigh_dump_neigh(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_iv_ogm_neigh_dump_hardif - Dump the neighbours of a hard interface
* batadv_iv_ogm_neigh_dump_hardif() - Dump the neighbours of a hard interface
* into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
@ -2365,7 +2375,7 @@ batadv_iv_ogm_neigh_dump_hardif(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_iv_ogm_neigh_dump - Dump the neighbours into a message
* batadv_iv_ogm_neigh_dump() - Dump the neighbours into a message
* @msg: Netlink message to dump into
* @cb: Control block containing additional options
* @bat_priv: The bat priv with all the soft interface information
@ -2417,7 +2427,7 @@ batadv_iv_ogm_neigh_dump(struct sk_buff *msg, struct netlink_callback *cb,
}
/**
* batadv_iv_ogm_neigh_cmp - compare the metrics of two neighbors
* batadv_iv_ogm_neigh_cmp() - compare the metrics of two neighbors
* @neigh1: the first neighbor object of the comparison
* @if_outgoing1: outgoing interface for the first neighbor
* @neigh2: the second neighbor object of the comparison
@ -2443,7 +2453,7 @@ static int batadv_iv_ogm_neigh_cmp(struct batadv_neigh_node *neigh1,
}
/**
* batadv_iv_ogm_neigh_is_sob - check if neigh1 is similarly good or better
* batadv_iv_ogm_neigh_is_sob() - check if neigh1 is similarly good or better
* than neigh2 from the metric prospective
* @neigh1: the first neighbor object of the comparison
* @if_outgoing1: outgoing interface for the first neighbor
@ -2478,7 +2488,7 @@ static void batadv_iv_iface_activate(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_iv_init_sel_class - initialize GW selection class
* batadv_iv_init_sel_class() - initialize GW selection class
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_iv_init_sel_class(struct batadv_priv *bat_priv)
@ -2703,7 +2713,7 @@ static void batadv_iv_gw_print(struct batadv_priv *bat_priv,
#endif
/**
* batadv_iv_gw_dump_entry - Dump a gateway into a message
* batadv_iv_gw_dump_entry() - Dump a gateway into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -2774,7 +2784,7 @@ out:
}
/**
* batadv_iv_gw_dump - Dump gateways into a message
* batadv_iv_gw_dump() - Dump gateways into a message
* @msg: Netlink message to dump into
* @cb: Control block containing additional options
* @bat_priv: The bat priv with all the soft interface information
@ -2843,6 +2853,11 @@ static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
},
};
/**
* batadv_iv_init() - B.A.T.M.A.N. IV initialization function
*
* Return: 0 on success or negative error number in case of failure
*/
int __init batadv_iv_init(void)
{
int ret;

1
net/batman-adv/bat_iv_ogm.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich

49
net/batman-adv/bat_v.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2013-2017 B.A.T.M.A.N. contributors:
*
* Linus Lüssing, Marek Lindner
@ -99,7 +100,7 @@ static void batadv_v_primary_iface_set(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_v_iface_update_mac - react to hard-interface MAC address change
* batadv_v_iface_update_mac() - react to hard-interface MAC address change
* @hard_iface: the modified interface
*
* If the modified interface is the primary one, update the originator
@ -130,7 +131,7 @@ batadv_v_hardif_neigh_init(struct batadv_hardif_neigh_node *hardif_neigh)
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_v_orig_print_neigh - print neighbors for the originator table
* batadv_v_orig_print_neigh() - print neighbors for the originator table
* @orig_node: the orig_node for which the neighbors are printed
* @if_outgoing: outgoing interface for these entries
* @seq: debugfs table seq_file struct
@ -160,7 +161,7 @@ batadv_v_orig_print_neigh(struct batadv_orig_node *orig_node,
}
/**
* batadv_v_hardif_neigh_print - print a single ELP neighbour node
* batadv_v_hardif_neigh_print() - print a single ELP neighbour node
* @seq: neighbour table seq_file struct
* @hardif_neigh: hardif neighbour information
*/
@ -181,7 +182,7 @@ batadv_v_hardif_neigh_print(struct seq_file *seq,
}
/**
* batadv_v_neigh_print - print the single hop neighbour list
* batadv_v_neigh_print() - print the single hop neighbour list
* @bat_priv: the bat priv with all the soft interface information
* @seq: neighbour table seq_file struct
*/
@ -215,7 +216,7 @@ static void batadv_v_neigh_print(struct batadv_priv *bat_priv,
#endif
/**
* batadv_v_neigh_dump_neigh - Dump a neighbour into a message
* batadv_v_neigh_dump_neigh() - Dump a neighbour into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -258,7 +259,7 @@ batadv_v_neigh_dump_neigh(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_v_neigh_dump_hardif - Dump the neighbours of a hard interface into
* batadv_v_neigh_dump_hardif() - Dump the neighbours of a hard interface into
* a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
@ -296,7 +297,7 @@ batadv_v_neigh_dump_hardif(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_v_neigh_dump - Dump the neighbours of a hard interface into a
* batadv_v_neigh_dump() - Dump the neighbours of a hard interface into a
* message
* @msg: Netlink message to dump into
* @cb: Control block containing additional options
@ -348,7 +349,7 @@ batadv_v_neigh_dump(struct sk_buff *msg, struct netlink_callback *cb,
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_v_orig_print - print the originator table
* batadv_v_orig_print() - print the originator table
* @bat_priv: the bat priv with all the soft interface information
* @seq: debugfs table seq_file struct
* @if_outgoing: the outgoing interface for which this should be printed
@ -416,8 +417,7 @@ next:
#endif
/**
* batadv_v_orig_dump_subentry - Dump an originator subentry into a
* message
* batadv_v_orig_dump_subentry() - Dump an originator subentry into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -483,7 +483,7 @@ batadv_v_orig_dump_subentry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_v_orig_dump_entry - Dump an originator entry into a message
* batadv_v_orig_dump_entry() - Dump an originator entry into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -536,8 +536,7 @@ batadv_v_orig_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_v_orig_dump_bucket - Dump an originator bucket into a
* message
* batadv_v_orig_dump_bucket() - Dump an originator bucket into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -578,7 +577,7 @@ batadv_v_orig_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_v_orig_dump - Dump the originators into a message
* batadv_v_orig_dump() - Dump the originators into a message
* @msg: Netlink message to dump into
* @cb: Control block containing additional options
* @bat_priv: The bat priv with all the soft interface information
@ -668,7 +667,7 @@ err_ifinfo1:
}
/**
* batadv_v_init_sel_class - initialize GW selection class
* batadv_v_init_sel_class() - initialize GW selection class
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_v_init_sel_class(struct batadv_priv *bat_priv)
@ -704,7 +703,7 @@ static ssize_t batadv_v_show_sel_class(struct batadv_priv *bat_priv, char *buff)
}
/**
* batadv_v_gw_throughput_get - retrieve the GW-bandwidth for a given GW
* batadv_v_gw_throughput_get() - retrieve the GW-bandwidth for a given GW
* @gw_node: the GW to retrieve the metric for
* @bw: the pointer where the metric will be stored. The metric is computed as
* the minimum between the GW advertised throughput and the path throughput to
@ -747,7 +746,7 @@ out:
}
/**
* batadv_v_gw_get_best_gw_node - retrieve the best GW node
* batadv_v_gw_get_best_gw_node() - retrieve the best GW node
* @bat_priv: the bat priv with all the soft interface information
*
* Return: the GW node having the best GW-metric, NULL if no GW is known
@ -785,7 +784,7 @@ next:
}
/**
* batadv_v_gw_is_eligible - check if a originator would be selected as GW
* batadv_v_gw_is_eligible() - check if a originator would be selected as GW
* @bat_priv: the bat priv with all the soft interface information
* @curr_gw_orig: originator representing the currently selected GW
* @orig_node: the originator representing the new candidate
@ -884,7 +883,7 @@ out:
}
/**
* batadv_v_gw_print - print the gateway list
* batadv_v_gw_print() - print the gateway list
* @bat_priv: the bat priv with all the soft interface information
* @seq: gateway table seq_file struct
*/
@ -913,7 +912,7 @@ static void batadv_v_gw_print(struct batadv_priv *bat_priv,
#endif
/**
* batadv_v_gw_dump_entry - Dump a gateway into a message
* batadv_v_gw_dump_entry() - Dump a gateway into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -1004,7 +1003,7 @@ out:
}
/**
* batadv_v_gw_dump - Dump gateways into a message
* batadv_v_gw_dump() - Dump gateways into a message
* @msg: Netlink message to dump into
* @cb: Control block containing additional options
* @bat_priv: The bat priv with all the soft interface information
@ -1074,7 +1073,7 @@ static struct batadv_algo_ops batadv_batman_v __read_mostly = {
};
/**
* batadv_v_hardif_init - initialize the algorithm specific fields in the
* batadv_v_hardif_init() - initialize the algorithm specific fields in the
* hard-interface object
* @hard_iface: the hard-interface to initialize
*/
@ -1088,7 +1087,7 @@ void batadv_v_hardif_init(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_v_mesh_init - initialize the B.A.T.M.A.N. V private resources for a
* batadv_v_mesh_init() - initialize the B.A.T.M.A.N. V private resources for a
* mesh
* @bat_priv: the object representing the mesh interface to initialise
*
@ -1106,7 +1105,7 @@ int batadv_v_mesh_init(struct batadv_priv *bat_priv)
}
/**
* batadv_v_mesh_free - free the B.A.T.M.A.N. V private resources for a mesh
* batadv_v_mesh_free() - free the B.A.T.M.A.N. V private resources for a mesh
* @bat_priv: the object representing the mesh interface to free
*/
void batadv_v_mesh_free(struct batadv_priv *bat_priv)
@ -1115,7 +1114,7 @@ void batadv_v_mesh_free(struct batadv_priv *bat_priv)
}
/**
* batadv_v_init - B.A.T.M.A.N. V initialization function
* batadv_v_init() - B.A.T.M.A.N. V initialization function
*
* Description: Takes care of initializing all the subcomponents.
* It is invoked upon module load only.

1
net/batman-adv/bat_v.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Linus Lüssing

27
net/batman-adv/bat_v_elp.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors:
*
* Linus Lüssing, Marek Lindner
@ -24,7 +25,7 @@
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
@ -52,7 +53,7 @@
#include "send.h"
/**
* batadv_v_elp_start_timer - restart timer for ELP periodic work
* batadv_v_elp_start_timer() - restart timer for ELP periodic work
* @hard_iface: the interface for which the timer has to be reset
*/
static void batadv_v_elp_start_timer(struct batadv_hard_iface *hard_iface)
@ -67,7 +68,7 @@ static void batadv_v_elp_start_timer(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_v_elp_get_throughput - get the throughput towards a neighbour
* batadv_v_elp_get_throughput() - get the throughput towards a neighbour
* @neigh: the neighbour for which the throughput has to be obtained
*
* Return: The throughput towards the given neighbour in multiples of 100kpbs
@ -153,8 +154,8 @@ default_throughput:
}
/**
* batadv_v_elp_throughput_metric_update - worker updating the throughput metric
* of a single hop neighbour
* batadv_v_elp_throughput_metric_update() - worker updating the throughput
* metric of a single hop neighbour
* @work: the work queue item
*/
void batadv_v_elp_throughput_metric_update(struct work_struct *work)
@ -177,7 +178,7 @@ void batadv_v_elp_throughput_metric_update(struct work_struct *work)
}
/**
* batadv_v_elp_wifi_neigh_probe - send link probing packets to a neighbour
* batadv_v_elp_wifi_neigh_probe() - send link probing packets to a neighbour
* @neigh: the neighbour to probe
*
* Sends a predefined number of unicast wifi packets to a given neighbour in
@ -240,7 +241,7 @@ batadv_v_elp_wifi_neigh_probe(struct batadv_hardif_neigh_node *neigh)
}
/**
* batadv_v_elp_periodic_work - ELP periodic task per interface
* batadv_v_elp_periodic_work() - ELP periodic task per interface
* @work: work queue item
*
* Emits broadcast ELP message in regular intervals.
@ -327,7 +328,7 @@ out:
}
/**
* batadv_v_elp_iface_enable - setup the ELP interface private resources
* batadv_v_elp_iface_enable() - setup the ELP interface private resources
* @hard_iface: interface for which the data has to be prepared
*
* Return: 0 on success or a -ENOMEM in case of failure.
@ -375,7 +376,7 @@ out:
}
/**
* batadv_v_elp_iface_disable - release ELP interface private resources
* batadv_v_elp_iface_disable() - release ELP interface private resources
* @hard_iface: interface for which the resources have to be released
*/
void batadv_v_elp_iface_disable(struct batadv_hard_iface *hard_iface)
@ -387,7 +388,7 @@ void batadv_v_elp_iface_disable(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_v_elp_iface_activate - update the ELP buffer belonging to the given
* batadv_v_elp_iface_activate() - update the ELP buffer belonging to the given
* hard-interface
* @primary_iface: the new primary interface
* @hard_iface: interface holding the to-be-updated buffer
@ -408,7 +409,7 @@ void batadv_v_elp_iface_activate(struct batadv_hard_iface *primary_iface,
}
/**
* batadv_v_elp_primary_iface_set - change internal data to reflect the new
* batadv_v_elp_primary_iface_set() - change internal data to reflect the new
* primary interface
* @primary_iface: the new primary interface
*/
@ -428,7 +429,7 @@ void batadv_v_elp_primary_iface_set(struct batadv_hard_iface *primary_iface)
}
/**
* batadv_v_elp_neigh_update - update an ELP neighbour node
* batadv_v_elp_neigh_update() - update an ELP neighbour node
* @bat_priv: the bat priv with all the soft interface information
* @neigh_addr: the neighbour interface address
* @if_incoming: the interface the packet was received through
@ -488,7 +489,7 @@ orig_free:
}
/**
* batadv_v_elp_packet_recv - main ELP packet handler
* batadv_v_elp_packet_recv() - main ELP packet handler
* @skb: the received packet
* @if_incoming: the interface this packet was received through
*

1
net/batman-adv/bat_v_elp.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2013-2017 B.A.T.M.A.N. contributors:
*
* Linus Lüssing, Marek Lindner

37
net/batman-adv/bat_v_ogm.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2013-2017 B.A.T.M.A.N. contributors:
*
* Antonio Quartulli
@ -22,7 +23,7 @@
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
@ -51,7 +52,7 @@
#include "tvlv.h"
/**
* batadv_v_ogm_orig_get - retrieve and possibly create an originator node
* batadv_v_ogm_orig_get() - retrieve and possibly create an originator node
* @bat_priv: the bat priv with all the soft interface information
* @addr: the address of the originator
*
@ -88,7 +89,7 @@ struct batadv_orig_node *batadv_v_ogm_orig_get(struct batadv_priv *bat_priv,
}
/**
* batadv_v_ogm_start_timer - restart the OGM sending timer
* batadv_v_ogm_start_timer() - restart the OGM sending timer
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_v_ogm_start_timer(struct batadv_priv *bat_priv)
@ -107,7 +108,7 @@ static void batadv_v_ogm_start_timer(struct batadv_priv *bat_priv)
}
/**
* batadv_v_ogm_send_to_if - send a batman ogm using a given interface
* batadv_v_ogm_send_to_if() - send a batman ogm using a given interface
* @skb: the OGM to send
* @hard_iface: the interface to use to send the OGM
*/
@ -127,7 +128,7 @@ static void batadv_v_ogm_send_to_if(struct sk_buff *skb,
}
/**
* batadv_v_ogm_send - periodic worker broadcasting the own OGM
* batadv_v_ogm_send() - periodic worker broadcasting the own OGM
* @work: work queue item
*/
static void batadv_v_ogm_send(struct work_struct *work)
@ -235,7 +236,7 @@ out:
}
/**
* batadv_v_ogm_iface_enable - prepare an interface for B.A.T.M.A.N. V
* batadv_v_ogm_iface_enable() - prepare an interface for B.A.T.M.A.N. V
* @hard_iface: the interface to prepare
*
* Takes care of scheduling own OGM sending routine for this interface.
@ -252,7 +253,7 @@ int batadv_v_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_v_ogm_primary_iface_set - set a new primary interface
* batadv_v_ogm_primary_iface_set() - set a new primary interface
* @primary_iface: the new primary interface
*/
void batadv_v_ogm_primary_iface_set(struct batadv_hard_iface *primary_iface)
@ -268,8 +269,8 @@ void batadv_v_ogm_primary_iface_set(struct batadv_hard_iface *primary_iface)
}
/**
* batadv_v_forward_penalty - apply a penalty to the throughput metric forwarded
* with B.A.T.M.A.N. V OGMs
* batadv_v_forward_penalty() - apply a penalty to the throughput metric
* forwarded with B.A.T.M.A.N. V OGMs
* @bat_priv: the bat priv with all the soft interface information
* @if_incoming: the interface where the OGM has been received
* @if_outgoing: the interface where the OGM has to be forwarded to
@ -314,7 +315,7 @@ static u32 batadv_v_forward_penalty(struct batadv_priv *bat_priv,
}
/**
* batadv_v_ogm_forward - check conditions and forward an OGM to the given
* batadv_v_ogm_forward() - check conditions and forward an OGM to the given
* outgoing interface
* @bat_priv: the bat priv with all the soft interface information
* @ogm_received: previously received OGM to be forwarded
@ -405,7 +406,7 @@ out:
}
/**
* batadv_v_ogm_metric_update - update route metric based on OGM
* batadv_v_ogm_metric_update() - update route metric based on OGM
* @bat_priv: the bat priv with all the soft interface information
* @ogm2: OGM2 structure
* @orig_node: Originator structure for which the OGM has been received
@ -490,7 +491,7 @@ out:
}
/**
* batadv_v_ogm_route_update - update routes based on OGM
* batadv_v_ogm_route_update() - update routes based on OGM
* @bat_priv: the bat priv with all the soft interface information
* @ethhdr: the Ethernet header of the OGM2
* @ogm2: OGM2 structure
@ -590,7 +591,7 @@ out:
}
/**
* batadv_v_ogm_process_per_outif - process a batman v OGM for an outgoing if
* batadv_v_ogm_process_per_outif() - process a batman v OGM for an outgoing if
* @bat_priv: the bat priv with all the soft interface information
* @ethhdr: the Ethernet header of the OGM2
* @ogm2: OGM2 structure
@ -639,7 +640,7 @@ batadv_v_ogm_process_per_outif(struct batadv_priv *bat_priv,
}
/**
* batadv_v_ogm_aggr_packet - checks if there is another OGM aggregated
* batadv_v_ogm_aggr_packet() - checks if there is another OGM aggregated
* @buff_pos: current position in the skb
* @packet_len: total length of the skb
* @tvlv_len: tvlv length of the previously considered OGM
@ -659,7 +660,7 @@ static bool batadv_v_ogm_aggr_packet(int buff_pos, int packet_len,
}
/**
* batadv_v_ogm_process - process an incoming batman v OGM
* batadv_v_ogm_process() - process an incoming batman v OGM
* @skb: the skb containing the OGM
* @ogm_offset: offset to the OGM which should be processed (for aggregates)
* @if_incoming: the interface where this packet was receved
@ -787,7 +788,7 @@ out:
}
/**
* batadv_v_ogm_packet_recv - OGM2 receiving handler
* batadv_v_ogm_packet_recv() - OGM2 receiving handler
* @skb: the received OGM
* @if_incoming: the interface where this OGM has been received
*
@ -851,7 +852,7 @@ free_skb:
}
/**
* batadv_v_ogm_init - initialise the OGM2 engine
* batadv_v_ogm_init() - initialise the OGM2 engine
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 on success or a negative error code in case of failure
@ -884,7 +885,7 @@ int batadv_v_ogm_init(struct batadv_priv *bat_priv)
}
/**
* batadv_v_ogm_free - free OGM private resources
* batadv_v_ogm_free() - free OGM private resources
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_v_ogm_free(struct batadv_priv *bat_priv)

1
net/batman-adv/bat_v_ogm.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2013-2017 B.A.T.M.A.N. contributors:
*
* Antonio Quartulli

3
net/batman-adv/bitarray.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2006-2017 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
@ -32,7 +33,7 @@ static void batadv_bitmap_shift_left(unsigned long *seq_bits, s32 n)
}
/**
* batadv_bit_get_packet - receive and process one packet within the sequence
* batadv_bit_get_packet() - receive and process one packet within the sequence
* number window
* @priv: the bat priv with all the soft interface information
* @seq_bits: pointer to the sequence number receive packet

10
net/batman-adv/bitarray.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2006-2017 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
@ -26,7 +27,7 @@
#include <linux/types.h>
/**
* batadv_test_bit - check if bit is set in the current window
* batadv_test_bit() - check if bit is set in the current window
*
* @seq_bits: pointer to the sequence number receive packet
* @last_seqno: latest sequence number in seq_bits
@ -46,7 +47,12 @@ static inline bool batadv_test_bit(const unsigned long *seq_bits,
return test_bit(diff, seq_bits) != 0;
}
/* turn corresponding bit on, so we can remember that we got the packet */
/**
* batadv_set_bit() - Turn corresponding bit on, so we can remember that we got
* the packet
* @seq_bits: bitmap of the packet receive window
* @n: relative sequence number of newly received packet
*/
static inline void batadv_set_bit(unsigned long *seq_bits, s32 n)
{
/* if too old, just drop it */

112
net/batman-adv/bridge_loop_avoidance.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich
@ -24,7 +25,7 @@
#include <linux/crc16.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
@ -69,7 +70,7 @@ batadv_bla_send_announce(struct batadv_priv *bat_priv,
struct batadv_bla_backbone_gw *backbone_gw);
/**
* batadv_choose_claim - choose the right bucket for a claim.
* batadv_choose_claim() - choose the right bucket for a claim.
* @data: data to hash
* @size: size of the hash table
*
@ -87,7 +88,7 @@ static inline u32 batadv_choose_claim(const void *data, u32 size)
}
/**
* batadv_choose_backbone_gw - choose the right bucket for a backbone gateway.
* batadv_choose_backbone_gw() - choose the right bucket for a backbone gateway.
* @data: data to hash
* @size: size of the hash table
*
@ -105,7 +106,7 @@ static inline u32 batadv_choose_backbone_gw(const void *data, u32 size)
}
/**
* batadv_compare_backbone_gw - compare address and vid of two backbone gws
* batadv_compare_backbone_gw() - compare address and vid of two backbone gws
* @node: list node of the first entry to compare
* @data2: pointer to the second backbone gateway
*
@ -129,7 +130,7 @@ static bool batadv_compare_backbone_gw(const struct hlist_node *node,
}
/**
* batadv_compare_claim - compare address and vid of two claims
* batadv_compare_claim() - compare address and vid of two claims
* @node: list node of the first entry to compare
* @data2: pointer to the second claims
*
@ -153,7 +154,7 @@ static bool batadv_compare_claim(const struct hlist_node *node,
}
/**
* batadv_backbone_gw_release - release backbone gw from lists and queue for
* batadv_backbone_gw_release() - release backbone gw from lists and queue for
* free after rcu grace period
* @ref: kref pointer of the backbone gw
*/
@ -168,7 +169,7 @@ static void batadv_backbone_gw_release(struct kref *ref)
}
/**
* batadv_backbone_gw_put - decrement the backbone gw refcounter and possibly
* batadv_backbone_gw_put() - decrement the backbone gw refcounter and possibly
* release it
* @backbone_gw: backbone gateway to be free'd
*/
@ -178,8 +179,8 @@ static void batadv_backbone_gw_put(struct batadv_bla_backbone_gw *backbone_gw)
}
/**
* batadv_claim_release - release claim from lists and queue for free after rcu
* grace period
* batadv_claim_release() - release claim from lists and queue for free after
* rcu grace period
* @ref: kref pointer of the claim
*/
static void batadv_claim_release(struct kref *ref)
@ -204,8 +205,7 @@ static void batadv_claim_release(struct kref *ref)
}
/**
* batadv_claim_put - decrement the claim refcounter and possibly
* release it
* batadv_claim_put() - decrement the claim refcounter and possibly release it
* @claim: claim to be free'd
*/
static void batadv_claim_put(struct batadv_bla_claim *claim)
@ -214,7 +214,7 @@ static void batadv_claim_put(struct batadv_bla_claim *claim)
}
/**
* batadv_claim_hash_find - looks for a claim in the claim hash
* batadv_claim_hash_find() - looks for a claim in the claim hash
* @bat_priv: the bat priv with all the soft interface information
* @data: search data (may be local/static data)
*
@ -253,7 +253,7 @@ batadv_claim_hash_find(struct batadv_priv *bat_priv,
}
/**
* batadv_backbone_hash_find - looks for a backbone gateway in the hash
* batadv_backbone_hash_find() - looks for a backbone gateway in the hash
* @bat_priv: the bat priv with all the soft interface information
* @addr: the address of the originator
* @vid: the VLAN ID
@ -297,7 +297,7 @@ batadv_backbone_hash_find(struct batadv_priv *bat_priv, u8 *addr,
}
/**
* batadv_bla_del_backbone_claims - delete all claims for a backbone
* batadv_bla_del_backbone_claims() - delete all claims for a backbone
* @backbone_gw: backbone gateway where the claims should be removed
*/
static void
@ -337,7 +337,7 @@ batadv_bla_del_backbone_claims(struct batadv_bla_backbone_gw *backbone_gw)
}
/**
* batadv_bla_send_claim - sends a claim frame according to the provided info
* batadv_bla_send_claim() - sends a claim frame according to the provided info
* @bat_priv: the bat priv with all the soft interface information
* @mac: the mac address to be announced within the claim
* @vid: the VLAN ID
@ -457,7 +457,7 @@ out:
}
/**
* batadv_bla_loopdetect_report - worker for reporting the loop
* batadv_bla_loopdetect_report() - worker for reporting the loop
* @work: work queue item
*
* Throws an uevent, as the loopdetect check function can't do that itself
@ -487,7 +487,7 @@ static void batadv_bla_loopdetect_report(struct work_struct *work)
}
/**
* batadv_bla_get_backbone_gw - finds or creates a backbone gateway
* batadv_bla_get_backbone_gw() - finds or creates a backbone gateway
* @bat_priv: the bat priv with all the soft interface information
* @orig: the mac address of the originator
* @vid: the VLAN ID
@ -560,7 +560,7 @@ batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, u8 *orig,
}
/**
* batadv_bla_update_own_backbone_gw - updates the own backbone gw for a VLAN
* batadv_bla_update_own_backbone_gw() - updates the own backbone gw for a VLAN
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: the selected primary interface
* @vid: VLAN identifier
@ -586,7 +586,7 @@ batadv_bla_update_own_backbone_gw(struct batadv_priv *bat_priv,
}
/**
* batadv_bla_answer_request - answer a bla request by sending own claims
* batadv_bla_answer_request() - answer a bla request by sending own claims
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: interface where the request came on
* @vid: the vid where the request came on
@ -636,7 +636,7 @@ static void batadv_bla_answer_request(struct batadv_priv *bat_priv,
}
/**
* batadv_bla_send_request - send a request to repeat claims
* batadv_bla_send_request() - send a request to repeat claims
* @backbone_gw: the backbone gateway from whom we are out of sync
*
* When the crc is wrong, ask the backbone gateway for a full table update.
@ -663,7 +663,7 @@ static void batadv_bla_send_request(struct batadv_bla_backbone_gw *backbone_gw)
}
/**
* batadv_bla_send_announce - Send an announcement frame
* batadv_bla_send_announce() - Send an announcement frame
* @bat_priv: the bat priv with all the soft interface information
* @backbone_gw: our backbone gateway which should be announced
*/
@ -684,7 +684,7 @@ static void batadv_bla_send_announce(struct batadv_priv *bat_priv,
}
/**
* batadv_bla_add_claim - Adds a claim in the claim hash
* batadv_bla_add_claim() - Adds a claim in the claim hash
* @bat_priv: the bat priv with all the soft interface information
* @mac: the mac address of the claim
* @vid: the VLAN ID of the frame
@ -774,7 +774,7 @@ claim_free_ref:
}
/**
* batadv_bla_claim_get_backbone_gw - Get valid reference for backbone_gw of
* batadv_bla_claim_get_backbone_gw() - Get valid reference for backbone_gw of
* claim
* @claim: claim whose backbone_gw should be returned
*
@ -794,7 +794,7 @@ batadv_bla_claim_get_backbone_gw(struct batadv_bla_claim *claim)
}
/**
* batadv_bla_del_claim - delete a claim from the claim hash
* batadv_bla_del_claim() - delete a claim from the claim hash
* @bat_priv: the bat priv with all the soft interface information
* @mac: mac address of the claim to be removed
* @vid: VLAN id for the claim to be removed
@ -822,7 +822,7 @@ static void batadv_bla_del_claim(struct batadv_priv *bat_priv,
}
/**
* batadv_handle_announce - check for ANNOUNCE frame
* batadv_handle_announce() - check for ANNOUNCE frame
* @bat_priv: the bat priv with all the soft interface information
* @an_addr: announcement mac address (ARP Sender HW address)
* @backbone_addr: originator address of the sender (Ethernet source MAC)
@ -880,7 +880,7 @@ static bool batadv_handle_announce(struct batadv_priv *bat_priv, u8 *an_addr,
}
/**
* batadv_handle_request - check for REQUEST frame
* batadv_handle_request() - check for REQUEST frame
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: the primary hard interface of this batman soft interface
* @backbone_addr: backbone address to be requested (ARP sender HW MAC)
@ -913,7 +913,7 @@ static bool batadv_handle_request(struct batadv_priv *bat_priv,
}
/**
* batadv_handle_unclaim - check for UNCLAIM frame
* batadv_handle_unclaim() - check for UNCLAIM frame
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: the primary hard interface of this batman soft interface
* @backbone_addr: originator address of the backbone (Ethernet source)
@ -951,7 +951,7 @@ static bool batadv_handle_unclaim(struct batadv_priv *bat_priv,
}
/**
* batadv_handle_claim - check for CLAIM frame
* batadv_handle_claim() - check for CLAIM frame
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: the primary hard interface of this batman soft interface
* @backbone_addr: originator address of the backbone (Ethernet Source)
@ -988,7 +988,7 @@ static bool batadv_handle_claim(struct batadv_priv *bat_priv,
}
/**
* batadv_check_claim_group - check for claim group membership
* batadv_check_claim_group() - check for claim group membership
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: the primary interface of this batman interface
* @hw_src: the Hardware source in the ARP Header
@ -1063,7 +1063,7 @@ static int batadv_check_claim_group(struct batadv_priv *bat_priv,
}
/**
* batadv_bla_process_claim - Check if this is a claim frame, and process it
* batadv_bla_process_claim() - Check if this is a claim frame, and process it
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: the primary hard interface of this batman soft interface
* @skb: the frame to be checked
@ -1205,7 +1205,7 @@ static bool batadv_bla_process_claim(struct batadv_priv *bat_priv,
}
/**
* batadv_bla_purge_backbone_gw - Remove backbone gateways after a timeout or
* batadv_bla_purge_backbone_gw() - Remove backbone gateways after a timeout or
* immediately
* @bat_priv: the bat priv with all the soft interface information
* @now: whether the whole hash shall be wiped now
@ -1258,7 +1258,7 @@ purge_now:
}
/**
* batadv_bla_purge_claims - Remove claims after a timeout or immediately
* batadv_bla_purge_claims() - Remove claims after a timeout or immediately
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: the selected primary interface, may be NULL if now is set
* @now: whether the whole hash shall be wiped now
@ -1316,7 +1316,7 @@ skip:
}
/**
* batadv_bla_update_orig_address - Update the backbone gateways when the own
* batadv_bla_update_orig_address() - Update the backbone gateways when the own
* originator address changes
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: the new selected primary_if
@ -1372,7 +1372,7 @@ void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
}
/**
* batadv_bla_send_loopdetect - send a loopdetect frame
* batadv_bla_send_loopdetect() - send a loopdetect frame
* @bat_priv: the bat priv with all the soft interface information
* @backbone_gw: the backbone gateway for which a loop should be detected
*
@ -1392,7 +1392,7 @@ batadv_bla_send_loopdetect(struct batadv_priv *bat_priv,
}
/**
* batadv_bla_status_update - purge bla interfaces if necessary
* batadv_bla_status_update() - purge bla interfaces if necessary
* @net_dev: the soft interface net device
*/
void batadv_bla_status_update(struct net_device *net_dev)
@ -1412,7 +1412,7 @@ void batadv_bla_status_update(struct net_device *net_dev)
}
/**
* batadv_bla_periodic_work - performs periodic bla work
* batadv_bla_periodic_work() - performs periodic bla work
* @work: kernel work struct
*
* periodic work to do:
@ -1517,7 +1517,7 @@ static struct lock_class_key batadv_claim_hash_lock_class_key;
static struct lock_class_key batadv_backbone_hash_lock_class_key;
/**
* batadv_bla_init - initialize all bla structures
* batadv_bla_init() - initialize all bla structures
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 on success, < 0 on error.
@ -1579,7 +1579,7 @@ int batadv_bla_init(struct batadv_priv *bat_priv)
}
/**
* batadv_bla_check_bcast_duplist - Check if a frame is in the broadcast dup.
* batadv_bla_check_bcast_duplist() - Check if a frame is in the broadcast dup.
* @bat_priv: the bat priv with all the soft interface information
* @skb: contains the bcast_packet to be checked
*
@ -1652,7 +1652,7 @@ out:
}
/**
* batadv_bla_is_backbone_gw_orig - Check if the originator is a gateway for
* batadv_bla_is_backbone_gw_orig() - Check if the originator is a gateway for
* the VLAN identified by vid.
* @bat_priv: the bat priv with all the soft interface information
* @orig: originator mac address
@ -1692,7 +1692,7 @@ bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig,
}
/**
* batadv_bla_is_backbone_gw - check if originator is a backbone gw for a VLAN.
* batadv_bla_is_backbone_gw() - check if originator is a backbone gw for a VLAN
* @skb: the frame to be checked
* @orig_node: the orig_node of the frame
* @hdr_size: maximum length of the frame
@ -1726,7 +1726,7 @@ bool batadv_bla_is_backbone_gw(struct sk_buff *skb,
}
/**
* batadv_bla_free - free all bla structures
* batadv_bla_free() - free all bla structures
* @bat_priv: the bat priv with all the soft interface information
*
* for softinterface free or module unload
@ -1753,7 +1753,7 @@ void batadv_bla_free(struct batadv_priv *bat_priv)
}
/**
* batadv_bla_loopdetect_check - check and handle a detected loop
* batadv_bla_loopdetect_check() - check and handle a detected loop
* @bat_priv: the bat priv with all the soft interface information
* @skb: the packet to check
* @primary_if: interface where the request came on
@ -1802,7 +1802,7 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
}
/**
* batadv_bla_rx - check packets coming from the mesh.
* batadv_bla_rx() - check packets coming from the mesh.
* @bat_priv: the bat priv with all the soft interface information
* @skb: the frame to be checked
* @vid: the VLAN ID of the frame
@ -1914,7 +1914,7 @@ out:
}
/**
* batadv_bla_tx - check packets going into the mesh
* batadv_bla_tx() - check packets going into the mesh
* @bat_priv: the bat priv with all the soft interface information
* @skb: the frame to be checked
* @vid: the VLAN ID of the frame
@ -2022,7 +2022,7 @@ out:
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_bla_claim_table_seq_print_text - print the claim table in a seq file
* batadv_bla_claim_table_seq_print_text() - print the claim table in a seq file
* @seq: seq file to print on
* @offset: not used
*
@ -2084,7 +2084,7 @@ out:
#endif
/**
* batadv_bla_claim_dump_entry - dump one entry of the claim table
* batadv_bla_claim_dump_entry() - dump one entry of the claim table
* to a netlink socket
* @msg: buffer for the message
* @portid: netlink port
@ -2143,7 +2143,7 @@ out:
}
/**
* batadv_bla_claim_dump_bucket - dump one bucket of the claim table
* batadv_bla_claim_dump_bucket() - dump one bucket of the claim table
* to a netlink socket
* @msg: buffer for the message
* @portid: netlink port
@ -2180,7 +2180,7 @@ unlock:
}
/**
* batadv_bla_claim_dump - dump claim table to a netlink socket
* batadv_bla_claim_dump() - dump claim table to a netlink socket
* @msg: buffer for the message
* @cb: callback structure containing arguments
*
@ -2247,8 +2247,8 @@ out:
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_bla_backbone_table_seq_print_text - print the backbone table in a seq
* file
* batadv_bla_backbone_table_seq_print_text() - print the backbone table in a
* seq file
* @seq: seq file to print on
* @offset: not used
*
@ -2312,8 +2312,8 @@ out:
#endif
/**
* batadv_bla_backbone_dump_entry - dump one entry of the backbone table
* to a netlink socket
* batadv_bla_backbone_dump_entry() - dump one entry of the backbone table to a
* netlink socket
* @msg: buffer for the message
* @portid: netlink port
* @seq: Sequence number of netlink message
@ -2373,8 +2373,8 @@ out:
}
/**
* batadv_bla_backbone_dump_bucket - dump one bucket of the backbone table
* to a netlink socket
* batadv_bla_backbone_dump_bucket() - dump one bucket of the backbone table to
* a netlink socket
* @msg: buffer for the message
* @portid: netlink port
* @seq: Sequence number of netlink message
@ -2410,7 +2410,7 @@ unlock:
}
/**
* batadv_bla_backbone_dump - dump backbone table to a netlink socket
* batadv_bla_backbone_dump() - dump backbone table to a netlink socket
* @msg: buffer for the message
* @cb: callback structure containing arguments
*
@ -2477,7 +2477,7 @@ out:
#ifdef CONFIG_BATMAN_ADV_DAT
/**
* batadv_bla_check_claim - check if address is claimed
* batadv_bla_check_claim() - check if address is claimed
*
* @bat_priv: the bat priv with all the soft interface information
* @addr: mac address of which the claim status is checked

5
net/batman-adv/bridge_loop_avoidance.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich
@ -30,8 +31,8 @@ struct seq_file;
struct sk_buff;
/**
* batadv_bla_is_loopdetect_mac - check if the mac address is from a loop detect
* frame sent by bridge loop avoidance
* batadv_bla_is_loopdetect_mac() - check if the mac address is from a loop
* detect frame sent by bridge loop avoidance
* @mac: mac address to check
*
* Return: true if the it looks like a loop detect frame

30
net/batman-adv/debugfs.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2010-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner
@ -25,7 +26,6 @@
#include <linux/fs.h>
#include <linux/netdevice.h>
#include <linux/printk.h>
#include <linux/sched.h> /* for linux/wait.h */
#include <linux/seq_file.h>
#include <linux/stat.h>
#include <linux/stddef.h>
@ -66,8 +66,8 @@ static int batadv_originators_open(struct inode *inode, struct file *file)
}
/**
* batadv_originators_hardif_open - handles debugfs output for the
* originator table of an hard interface
* batadv_originators_hardif_open() - handles debugfs output for the originator
* table of an hard interface
* @inode: inode pointer to debugfs file
* @file: pointer to the seq_file
*
@ -117,7 +117,7 @@ static int batadv_bla_backbone_table_open(struct inode *inode,
#ifdef CONFIG_BATMAN_ADV_DAT
/**
* batadv_dat_cache_open - Prepare file handler for reads from dat_chache
* batadv_dat_cache_open() - Prepare file handler for reads from dat_chache
* @inode: inode which was opened
* @file: file handle to be initialized
*
@ -154,7 +154,7 @@ static int batadv_nc_nodes_open(struct inode *inode, struct file *file)
#ifdef CONFIG_BATMAN_ADV_MCAST
/**
* batadv_mcast_flags_open - prepare file handler for reads from mcast_flags
* batadv_mcast_flags_open() - prepare file handler for reads from mcast_flags
* @inode: inode which was opened
* @file: file handle to be initialized
*
@ -259,6 +259,9 @@ static struct batadv_debuginfo *batadv_hardif_debuginfos[] = {
NULL,
};
/**
* batadv_debugfs_init() - Initialize soft interface independent debugfs entries
*/
void batadv_debugfs_init(void)
{
struct batadv_debuginfo **bat_debug;
@ -289,6 +292,9 @@ err:
batadv_debugfs = NULL;
}
/**
* batadv_debugfs_destroy() - Remove all debugfs entries
*/
void batadv_debugfs_destroy(void)
{
debugfs_remove_recursive(batadv_debugfs);
@ -296,7 +302,7 @@ void batadv_debugfs_destroy(void)
}
/**
* batadv_debugfs_add_hardif - creates the base directory for a hard interface
* batadv_debugfs_add_hardif() - creates the base directory for a hard interface
* in debugfs.
* @hard_iface: hard interface which should be added.
*
@ -338,7 +344,7 @@ out:
}
/**
* batadv_debugfs_del_hardif - delete the base directory for a hard interface
* batadv_debugfs_del_hardif() - delete the base directory for a hard interface
* in debugfs.
* @hard_iface: hard interface which is deleted.
*/
@ -355,6 +361,12 @@ void batadv_debugfs_del_hardif(struct batadv_hard_iface *hard_iface)
}
}
/**
* batadv_debugfs_add_meshif() - Initialize interface dependent debugfs entries
* @dev: netdev struct of the soft interface
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_debugfs_add_meshif(struct net_device *dev)
{
struct batadv_priv *bat_priv = netdev_priv(dev);
@ -401,6 +413,10 @@ out:
return -ENOMEM;
}
/**
* batadv_debugfs_del_meshif() - Remove interface dependent debugfs entries
* @dev: netdev struct of the soft interface
*/
void batadv_debugfs_del_meshif(struct net_device *dev)
{
struct batadv_priv *bat_priv = netdev_priv(dev);

1
net/batman-adv/debugfs.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2010-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner

80
net/batman-adv/distributed-arp-table.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors:
*
* Antonio Quartulli
@ -23,7 +24,7 @@
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
@ -55,7 +56,7 @@
static void batadv_dat_purge(struct work_struct *work);
/**
* batadv_dat_start_timer - initialise the DAT periodic worker
* batadv_dat_start_timer() - initialise the DAT periodic worker
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_dat_start_timer(struct batadv_priv *bat_priv)
@ -66,7 +67,7 @@ static void batadv_dat_start_timer(struct batadv_priv *bat_priv)
}
/**
* batadv_dat_entry_release - release dat_entry from lists and queue for free
* batadv_dat_entry_release() - release dat_entry from lists and queue for free
* after rcu grace period
* @ref: kref pointer of the dat_entry
*/
@ -80,7 +81,7 @@ static void batadv_dat_entry_release(struct kref *ref)
}
/**
* batadv_dat_entry_put - decrement the dat_entry refcounter and possibly
* batadv_dat_entry_put() - decrement the dat_entry refcounter and possibly
* release it
* @dat_entry: dat_entry to be free'd
*/
@ -90,7 +91,7 @@ static void batadv_dat_entry_put(struct batadv_dat_entry *dat_entry)
}
/**
* batadv_dat_to_purge - check whether a dat_entry has to be purged or not
* batadv_dat_to_purge() - check whether a dat_entry has to be purged or not
* @dat_entry: the entry to check
*
* Return: true if the entry has to be purged now, false otherwise.
@ -102,7 +103,7 @@ static bool batadv_dat_to_purge(struct batadv_dat_entry *dat_entry)
}
/**
* __batadv_dat_purge - delete entries from the DAT local storage
* __batadv_dat_purge() - delete entries from the DAT local storage
* @bat_priv: the bat priv with all the soft interface information
* @to_purge: function in charge to decide whether an entry has to be purged or
* not. This function takes the dat_entry as argument and has to
@ -145,8 +146,8 @@ static void __batadv_dat_purge(struct batadv_priv *bat_priv,
}
/**
* batadv_dat_purge - periodic task that deletes old entries from the local DAT
* hash table
* batadv_dat_purge() - periodic task that deletes old entries from the local
* DAT hash table
* @work: kernel work struct
*/
static void batadv_dat_purge(struct work_struct *work)
@ -164,7 +165,7 @@ static void batadv_dat_purge(struct work_struct *work)
}
/**
* batadv_compare_dat - comparing function used in the local DAT hash table
* batadv_compare_dat() - comparing function used in the local DAT hash table
* @node: node in the local table
* @data2: second object to compare the node to
*
@ -179,7 +180,7 @@ static bool batadv_compare_dat(const struct hlist_node *node, const void *data2)
}
/**
* batadv_arp_hw_src - extract the hw_src field from an ARP packet
* batadv_arp_hw_src() - extract the hw_src field from an ARP packet
* @skb: ARP packet
* @hdr_size: size of the possible header before the ARP packet
*
@ -196,7 +197,7 @@ static u8 *batadv_arp_hw_src(struct sk_buff *skb, int hdr_size)
}
/**
* batadv_arp_ip_src - extract the ip_src field from an ARP packet
* batadv_arp_ip_src() - extract the ip_src field from an ARP packet
* @skb: ARP packet
* @hdr_size: size of the possible header before the ARP packet
*
@ -208,7 +209,7 @@ static __be32 batadv_arp_ip_src(struct sk_buff *skb, int hdr_size)
}
/**
* batadv_arp_hw_dst - extract the hw_dst field from an ARP packet
* batadv_arp_hw_dst() - extract the hw_dst field from an ARP packet
* @skb: ARP packet
* @hdr_size: size of the possible header before the ARP packet
*
@ -220,7 +221,7 @@ static u8 *batadv_arp_hw_dst(struct sk_buff *skb, int hdr_size)
}
/**
* batadv_arp_ip_dst - extract the ip_dst field from an ARP packet
* batadv_arp_ip_dst() - extract the ip_dst field from an ARP packet
* @skb: ARP packet
* @hdr_size: size of the possible header before the ARP packet
*
@ -232,7 +233,7 @@ static __be32 batadv_arp_ip_dst(struct sk_buff *skb, int hdr_size)
}
/**
* batadv_hash_dat - compute the hash value for an IP address
* batadv_hash_dat() - compute the hash value for an IP address
* @data: data to hash
* @size: size of the hash table
*
@ -267,7 +268,7 @@ static u32 batadv_hash_dat(const void *data, u32 size)
}
/**
* batadv_dat_entry_hash_find - look for a given dat_entry in the local hash
* batadv_dat_entry_hash_find() - look for a given dat_entry in the local hash
* table
* @bat_priv: the bat priv with all the soft interface information
* @ip: search key
@ -310,7 +311,7 @@ batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip,
}
/**
* batadv_dat_entry_add - add a new dat entry or update it if already exists
* batadv_dat_entry_add() - add a new dat entry or update it if already exists
* @bat_priv: the bat priv with all the soft interface information
* @ip: ipv4 to add/edit
* @mac_addr: mac address to assign to the given ipv4
@ -367,7 +368,8 @@ out:
#ifdef CONFIG_BATMAN_ADV_DEBUG
/**
* batadv_dbg_arp - print a debug message containing all the ARP packet details
* batadv_dbg_arp() - print a debug message containing all the ARP packet
* details
* @bat_priv: the bat priv with all the soft interface information
* @skb: ARP packet
* @hdr_size: size of the possible header before the ARP packet
@ -448,7 +450,7 @@ static void batadv_dbg_arp(struct batadv_priv *bat_priv, struct sk_buff *skb,
#endif /* CONFIG_BATMAN_ADV_DEBUG */
/**
* batadv_is_orig_node_eligible - check whether a node can be a DHT candidate
* batadv_is_orig_node_eligible() - check whether a node can be a DHT candidate
* @res: the array with the already selected candidates
* @select: number of already selected candidates
* @tmp_max: address of the currently evaluated node
@ -502,7 +504,7 @@ out:
}
/**
* batadv_choose_next_candidate - select the next DHT candidate
* batadv_choose_next_candidate() - select the next DHT candidate
* @bat_priv: the bat priv with all the soft interface information
* @cands: candidates array
* @select: number of candidates already present in the array
@ -566,8 +568,8 @@ static void batadv_choose_next_candidate(struct batadv_priv *bat_priv,
}
/**
* batadv_dat_select_candidates - select the nodes which the DHT message has to
* be sent to
* batadv_dat_select_candidates() - select the nodes which the DHT message has
* to be sent to
* @bat_priv: the bat priv with all the soft interface information
* @ip_dst: ipv4 to look up in the DHT
* @vid: VLAN identifier
@ -612,7 +614,7 @@ batadv_dat_select_candidates(struct batadv_priv *bat_priv, __be32 ip_dst,
}
/**
* batadv_dat_send_data - send a payload to the selected candidates
* batadv_dat_send_data() - send a payload to the selected candidates
* @bat_priv: the bat priv with all the soft interface information
* @skb: payload to send
* @ip: the DHT key
@ -688,7 +690,7 @@ out:
}
/**
* batadv_dat_tvlv_container_update - update the dat tvlv container after dat
* batadv_dat_tvlv_container_update() - update the dat tvlv container after dat
* setting change
* @bat_priv: the bat priv with all the soft interface information
*/
@ -710,7 +712,7 @@ static void batadv_dat_tvlv_container_update(struct batadv_priv *bat_priv)
}
/**
* batadv_dat_status_update - update the dat tvlv container after dat
* batadv_dat_status_update() - update the dat tvlv container after dat
* setting change
* @net_dev: the soft interface net device
*/
@ -722,7 +724,7 @@ void batadv_dat_status_update(struct net_device *net_dev)
}
/**
* batadv_dat_tvlv_ogm_handler_v1 - process incoming dat tvlv container
* batadv_dat_tvlv_ogm_handler_v1() - process incoming dat tvlv container
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node of the ogm
* @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
@ -741,7 +743,7 @@ static void batadv_dat_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
}
/**
* batadv_dat_hash_free - free the local DAT hash table
* batadv_dat_hash_free() - free the local DAT hash table
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_dat_hash_free(struct batadv_priv *bat_priv)
@ -757,7 +759,7 @@ static void batadv_dat_hash_free(struct batadv_priv *bat_priv)
}
/**
* batadv_dat_init - initialise the DAT internals
* batadv_dat_init() - initialise the DAT internals
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 in case of success, a negative error code otherwise
@ -782,7 +784,7 @@ int batadv_dat_init(struct batadv_priv *bat_priv)
}
/**
* batadv_dat_free - free the DAT internals
* batadv_dat_free() - free the DAT internals
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_dat_free(struct batadv_priv *bat_priv)
@ -797,7 +799,7 @@ void batadv_dat_free(struct batadv_priv *bat_priv)
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_dat_cache_seq_print_text - print the local DAT hash table
* batadv_dat_cache_seq_print_text() - print the local DAT hash table
* @seq: seq file to print on
* @offset: not used
*
@ -850,7 +852,7 @@ out:
#endif
/**
* batadv_arp_get_type - parse an ARP packet and gets the type
* batadv_arp_get_type() - parse an ARP packet and gets the type
* @bat_priv: the bat priv with all the soft interface information
* @skb: packet to analyse
* @hdr_size: size of the possible header before the ARP packet in the skb
@ -924,7 +926,7 @@ out:
}
/**
* batadv_dat_get_vid - extract the VLAN identifier from skb if any
* batadv_dat_get_vid() - extract the VLAN identifier from skb if any
* @skb: the buffer containing the packet to extract the VID from
* @hdr_size: the size of the batman-adv header encapsulating the packet
*
@ -950,7 +952,7 @@ static unsigned short batadv_dat_get_vid(struct sk_buff *skb, int *hdr_size)
}
/**
* batadv_dat_arp_create_reply - create an ARP Reply
* batadv_dat_arp_create_reply() - create an ARP Reply
* @bat_priv: the bat priv with all the soft interface information
* @ip_src: ARP sender IP
* @ip_dst: ARP target IP
@ -985,7 +987,7 @@ batadv_dat_arp_create_reply(struct batadv_priv *bat_priv, __be32 ip_src,
}
/**
* batadv_dat_snoop_outgoing_arp_request - snoop the ARP request and try to
* batadv_dat_snoop_outgoing_arp_request() - snoop the ARP request and try to
* answer using DAT
* @bat_priv: the bat priv with all the soft interface information
* @skb: packet to check
@ -1083,7 +1085,7 @@ out:
}
/**
* batadv_dat_snoop_incoming_arp_request - snoop the ARP request and try to
* batadv_dat_snoop_incoming_arp_request() - snoop the ARP request and try to
* answer using the local DAT storage
* @bat_priv: the bat priv with all the soft interface information
* @skb: packet to check
@ -1153,7 +1155,7 @@ out:
}
/**
* batadv_dat_snoop_outgoing_arp_reply - snoop the ARP reply and fill the DHT
* batadv_dat_snoop_outgoing_arp_reply() - snoop the ARP reply and fill the DHT
* @bat_priv: the bat priv with all the soft interface information
* @skb: packet to check
*/
@ -1193,8 +1195,8 @@ void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
}
/**
* batadv_dat_snoop_incoming_arp_reply - snoop the ARP reply and fill the local
* DAT storage only
* batadv_dat_snoop_incoming_arp_reply() - snoop the ARP reply and fill the
* local DAT storage only
* @bat_priv: the bat priv with all the soft interface information
* @skb: packet to check
* @hdr_size: size of the encapsulation header
@ -1282,8 +1284,8 @@ out:
}
/**
* batadv_dat_drop_broadcast_packet - check if an ARP request has to be dropped
* (because the node has already obtained the reply via DAT) or not
* batadv_dat_drop_broadcast_packet() - check if an ARP request has to be
* dropped (because the node has already obtained the reply via DAT) or not
* @bat_priv: the bat priv with all the soft interface information
* @forw_packet: the broadcast packet
*

7
net/batman-adv/distributed-arp-table.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors:
*
* Antonio Quartulli
@ -48,7 +49,7 @@ bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
struct batadv_forw_packet *forw_packet);
/**
* batadv_dat_init_orig_node_addr - assign a DAT address to the orig_node
* batadv_dat_init_orig_node_addr() - assign a DAT address to the orig_node
* @orig_node: the node to assign the DAT address to
*/
static inline void
@ -61,7 +62,7 @@ batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
}
/**
* batadv_dat_init_own_addr - assign a DAT address to the node itself
* batadv_dat_init_own_addr() - assign a DAT address to the node itself
* @bat_priv: the bat priv with all the soft interface information
* @primary_if: a pointer to the primary interface
*/
@ -82,7 +83,7 @@ void batadv_dat_free(struct batadv_priv *bat_priv);
int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset);
/**
* batadv_dat_inc_counter - increment the correct DAT packet counter
* batadv_dat_inc_counter() - increment the correct DAT packet counter
* @bat_priv: the bat priv with all the soft interface information
* @subtype: the 4addr subtype of the packet to be counted
*

23
net/batman-adv/fragmentation.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2013-2017 B.A.T.M.A.N. contributors:
*
* Martin Hundebøll <martin@hundeboll.net>
@ -22,7 +23,7 @@
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
@ -41,7 +42,7 @@
#include "soft-interface.h"
/**
* batadv_frag_clear_chain - delete entries in the fragment buffer chain
* batadv_frag_clear_chain() - delete entries in the fragment buffer chain
* @head: head of chain with entries.
* @dropped: whether the chain is cleared because all fragments are dropped
*
@ -65,7 +66,7 @@ static void batadv_frag_clear_chain(struct hlist_head *head, bool dropped)
}
/**
* batadv_frag_purge_orig - free fragments associated to an orig
* batadv_frag_purge_orig() - free fragments associated to an orig
* @orig_node: originator to free fragments from
* @check_cb: optional function to tell if an entry should be purged
*/
@ -89,7 +90,7 @@ void batadv_frag_purge_orig(struct batadv_orig_node *orig_node,
}
/**
* batadv_frag_size_limit - maximum possible size of packet to be fragmented
* batadv_frag_size_limit() - maximum possible size of packet to be fragmented
*
* Return: the maximum size of payload that can be fragmented.
*/
@ -104,7 +105,7 @@ static int batadv_frag_size_limit(void)
}
/**
* batadv_frag_init_chain - check and prepare fragment chain for new fragment
* batadv_frag_init_chain() - check and prepare fragment chain for new fragment
* @chain: chain in fragments table to init
* @seqno: sequence number of the received fragment
*
@ -134,7 +135,7 @@ static bool batadv_frag_init_chain(struct batadv_frag_table_entry *chain,
}
/**
* batadv_frag_insert_packet - insert a fragment into a fragment chain
* batadv_frag_insert_packet() - insert a fragment into a fragment chain
* @orig_node: originator that the fragment was received from
* @skb: skb to insert
* @chain_out: list head to attach complete chains of fragments to
@ -248,7 +249,7 @@ err:
}
/**
* batadv_frag_merge_packets - merge a chain of fragments
* batadv_frag_merge_packets() - merge a chain of fragments
* @chain: head of chain with fragments
*
* Expand the first skb in the chain and copy the content of the remaining
@ -306,7 +307,7 @@ free:
}
/**
* batadv_frag_skb_buffer - buffer fragment for later merge
* batadv_frag_skb_buffer() - buffer fragment for later merge
* @skb: skb to buffer
* @orig_node_src: originator that the skb is received from
*
@ -346,7 +347,7 @@ out_err:
}
/**
* batadv_frag_skb_fwd - forward fragments that would exceed MTU when merged
* batadv_frag_skb_fwd() - forward fragments that would exceed MTU when merged
* @skb: skb to forward
* @recv_if: interface that the skb is received on
* @orig_node_src: originator that the skb is received from
@ -400,7 +401,7 @@ out:
}
/**
* batadv_frag_create - create a fragment from skb
* batadv_frag_create() - create a fragment from skb
* @skb: skb to create fragment from
* @frag_head: header to use in new fragment
* @fragment_size: size of new fragment
@ -438,7 +439,7 @@ err:
}
/**
* batadv_frag_send_packet - create up to 16 fragments from the passed skb
* batadv_frag_send_packet() - create up to 16 fragments from the passed skb
* @skb: skb to create fragments from
* @orig_node: final destination of the created fragments
* @neigh_node: next-hop of the created fragments

3
net/batman-adv/fragmentation.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2013-2017 B.A.T.M.A.N. contributors:
*
* Martin Hundebøll <martin@hundeboll.net>
@ -39,7 +40,7 @@ int batadv_frag_send_packet(struct sk_buff *skb,
struct batadv_neigh_node *neigh_node);
/**
* batadv_frag_check_entry - check if a list of fragments has timed out
* batadv_frag_check_entry() - check if a list of fragments has timed out
* @frags_entry: table entry to check
*
* Return: true if the frags entry has timed out, false otherwise.

65
net/batman-adv/gateway_client.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2009-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner
@ -22,7 +23,7 @@
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/in.h>
@ -68,8 +69,8 @@
#define BATADV_DHCP_CHADDR_OFFSET 28
/**
* batadv_gw_node_release - release gw_node from lists and queue for free after
* rcu grace period
* batadv_gw_node_release() - release gw_node from lists and queue for free
* after rcu grace period
* @ref: kref pointer of the gw_node
*/
static void batadv_gw_node_release(struct kref *ref)
@ -83,7 +84,8 @@ static void batadv_gw_node_release(struct kref *ref)
}
/**
* batadv_gw_node_put - decrement the gw_node refcounter and possibly release it
* batadv_gw_node_put() - decrement the gw_node refcounter and possibly release
* it
* @gw_node: gateway node to free
*/
void batadv_gw_node_put(struct batadv_gw_node *gw_node)
@ -91,6 +93,12 @@ void batadv_gw_node_put(struct batadv_gw_node *gw_node)
kref_put(&gw_node->refcount, batadv_gw_node_release);
}
/**
* batadv_gw_get_selected_gw_node() - Get currently selected gateway
* @bat_priv: the bat priv with all the soft interface information
*
* Return: selected gateway (with increased refcnt), NULL on errors
*/
struct batadv_gw_node *
batadv_gw_get_selected_gw_node(struct batadv_priv *bat_priv)
{
@ -109,6 +117,12 @@ out:
return gw_node;
}
/**
* batadv_gw_get_selected_orig() - Get originator of currently selected gateway
* @bat_priv: the bat priv with all the soft interface information
*
* Return: orig_node of selected gateway (with increased refcnt), NULL on errors
*/
struct batadv_orig_node *
batadv_gw_get_selected_orig(struct batadv_priv *bat_priv)
{
@ -155,7 +169,7 @@ static void batadv_gw_select(struct batadv_priv *bat_priv,
}
/**
* batadv_gw_reselect - force a gateway reselection
* batadv_gw_reselect() - force a gateway reselection
* @bat_priv: the bat priv with all the soft interface information
*
* Set a flag to remind the GW component to perform a new gateway reselection.
@ -171,7 +185,7 @@ void batadv_gw_reselect(struct batadv_priv *bat_priv)
}
/**
* batadv_gw_check_client_stop - check if client mode has been switched off
* batadv_gw_check_client_stop() - check if client mode has been switched off
* @bat_priv: the bat priv with all the soft interface information
*
* This function assumes the caller has checked that the gw state *is actually
@ -202,6 +216,10 @@ void batadv_gw_check_client_stop(struct batadv_priv *bat_priv)
batadv_gw_node_put(curr_gw);
}
/**
* batadv_gw_election() - Elect the best gateway
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_gw_election(struct batadv_priv *bat_priv)
{
struct batadv_gw_node *curr_gw = NULL;
@ -290,6 +308,11 @@ out:
batadv_neigh_ifinfo_put(router_ifinfo);
}
/**
* batadv_gw_check_election() - Elect orig node as best gateway when eligible
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which is to be checked
*/
void batadv_gw_check_election(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node)
{
@ -321,7 +344,7 @@ out:
}
/**
* batadv_gw_node_add - add gateway node to list of available gateways
* batadv_gw_node_add() - add gateway node to list of available gateways
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: originator announcing gateway capabilities
* @gateway: announced bandwidth information
@ -364,7 +387,7 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv,
}
/**
* batadv_gw_node_get - retrieve gateway node from list of available gateways
* batadv_gw_node_get() - retrieve gateway node from list of available gateways
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: originator announcing gateway capabilities
*
@ -393,7 +416,7 @@ struct batadv_gw_node *batadv_gw_node_get(struct batadv_priv *bat_priv,
}
/**
* batadv_gw_node_update - update list of available gateways with changed
* batadv_gw_node_update() - update list of available gateways with changed
* bandwidth information
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: originator announcing gateway capabilities
@ -458,6 +481,11 @@ out:
batadv_gw_node_put(gw_node);
}
/**
* batadv_gw_node_delete() - Remove orig_node from gateway list
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which is currently in process of being removed
*/
void batadv_gw_node_delete(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node)
{
@ -469,6 +497,10 @@ void batadv_gw_node_delete(struct batadv_priv *bat_priv,
batadv_gw_node_update(bat_priv, orig_node, &gateway);
}
/**
* batadv_gw_node_free() - Free gateway information from soft interface
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_gw_node_free(struct batadv_priv *bat_priv)
{
struct batadv_gw_node *gw_node;
@ -484,6 +516,14 @@ void batadv_gw_node_free(struct batadv_priv *bat_priv)
}
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_gw_client_seq_print_text() - Print the gateway table in a seq file
* @seq: seq file to print on
* @offset: not used
*
* Return: always 0
*/
int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset)
{
struct net_device *net_dev = (struct net_device *)seq->private;
@ -514,7 +554,7 @@ int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset)
#endif
/**
* batadv_gw_dump - Dump gateways into a message
* batadv_gw_dump() - Dump gateways into a message
* @msg: Netlink message to dump into
* @cb: Control block containing additional options
*
@ -567,7 +607,7 @@ out:
}
/**
* batadv_gw_dhcp_recipient_get - check if a packet is a DHCP message
* batadv_gw_dhcp_recipient_get() - check if a packet is a DHCP message
* @skb: the packet to check
* @header_len: a pointer to the batman-adv header size
* @chaddr: buffer where the client address will be stored. Valid
@ -686,7 +726,8 @@ batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len,
}
/**
* batadv_gw_out_of_range - check if the dhcp request destination is the best gw
* batadv_gw_out_of_range() - check if the dhcp request destination is the best
* gateway
* @bat_priv: the bat priv with all the soft interface information
* @skb: the outgoing packet
*

1
net/batman-adv/gateway_client.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2009-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner

28
net/batman-adv/gateway_common.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2009-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner
@ -33,8 +34,8 @@
#include "tvlv.h"
/**
* batadv_parse_throughput - parse supplied string buffer to extract throughput
* information
* batadv_parse_throughput() - parse supplied string buffer to extract
* throughput information
* @net_dev: the soft interface net device
* @buff: string buffer to parse
* @description: text shown when throughput string cannot be parsed
@ -100,8 +101,8 @@ bool batadv_parse_throughput(struct net_device *net_dev, char *buff,
}
/**
* batadv_parse_gw_bandwidth - parse supplied string buffer to extract download
* and upload bandwidth information
* batadv_parse_gw_bandwidth() - parse supplied string buffer to extract
* download and upload bandwidth information
* @net_dev: the soft interface net device
* @buff: string buffer to parse
* @down: pointer holding the returned download bandwidth information
@ -136,8 +137,8 @@ static bool batadv_parse_gw_bandwidth(struct net_device *net_dev, char *buff,
}
/**
* batadv_gw_tvlv_container_update - update the gw tvlv container after gateway
* setting change
* batadv_gw_tvlv_container_update() - update the gw tvlv container after
* gateway setting change
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_gw_tvlv_container_update(struct batadv_priv *bat_priv)
@ -164,6 +165,15 @@ void batadv_gw_tvlv_container_update(struct batadv_priv *bat_priv)
}
}
/**
* batadv_gw_bandwidth_set() - Parse and set download/upload gateway bandwidth
* from supplied string buffer
* @net_dev: netdev struct of the soft interface
* @buff: the buffer containing the user data
* @count: number of bytes in the buffer
*
* Return: 'count' on success or a negative error code in case of failure
*/
ssize_t batadv_gw_bandwidth_set(struct net_device *net_dev, char *buff,
size_t count)
{
@ -207,7 +217,7 @@ ssize_t batadv_gw_bandwidth_set(struct net_device *net_dev, char *buff,
}
/**
* batadv_gw_tvlv_ogm_handler_v1 - process incoming gateway tvlv container
* batadv_gw_tvlv_ogm_handler_v1() - process incoming gateway tvlv container
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node of the ogm
* @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
@ -248,7 +258,7 @@ static void batadv_gw_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
}
/**
* batadv_gw_init - initialise the gateway handling internals
* batadv_gw_init() - initialise the gateway handling internals
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_gw_init(struct batadv_priv *bat_priv)
@ -264,7 +274,7 @@ void batadv_gw_init(struct batadv_priv *bat_priv)
}
/**
* batadv_gw_free - free the gateway handling internals
* batadv_gw_free() - free the gateway handling internals
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_gw_free(struct batadv_priv *bat_priv)

6
net/batman-adv/gateway_common.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2009-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner
@ -32,11 +33,12 @@ enum batadv_gw_modes {
/**
* enum batadv_bandwidth_units - bandwidth unit types
* @BATADV_BW_UNIT_KBIT: unit type kbit
* @BATADV_BW_UNIT_MBIT: unit type mbit
*/
enum batadv_bandwidth_units {
/** @BATADV_BW_UNIT_KBIT: unit type kbit */
BATADV_BW_UNIT_KBIT,
/** @BATADV_BW_UNIT_MBIT: unit type mbit */
BATADV_BW_UNIT_MBIT,
};

65
net/batman-adv/hard-interface.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -22,7 +23,7 @@
#include <linux/bug.h>
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
@ -52,7 +53,7 @@
#include "translation-table.h"
/**
* batadv_hardif_release - release hard interface from lists and queue for
* batadv_hardif_release() - release hard interface from lists and queue for
* free after rcu grace period
* @ref: kref pointer of the hard interface
*/
@ -66,6 +67,12 @@ void batadv_hardif_release(struct kref *ref)
kfree_rcu(hard_iface, rcu);
}
/**
* batadv_hardif_get_by_netdev() - Get hard interface object of a net_device
* @net_dev: net_device to search for
*
* Return: batadv_hard_iface of net_dev (with increased refcnt), NULL on errors
*/
struct batadv_hard_iface *
batadv_hardif_get_by_netdev(const struct net_device *net_dev)
{
@ -86,7 +93,7 @@ out:
}
/**
* batadv_getlink_net - return link net namespace (of use fallback)
* batadv_getlink_net() - return link net namespace (of use fallback)
* @netdev: net_device to check
* @fallback_net: return in case get_link_net is not available for @netdev
*
@ -105,7 +112,7 @@ static struct net *batadv_getlink_net(const struct net_device *netdev,
}
/**
* batadv_mutual_parents - check if two devices are each others parent
* batadv_mutual_parents() - check if two devices are each others parent
* @dev1: 1st net dev
* @net1: 1st devices netns
* @dev2: 2nd net dev
@ -138,7 +145,7 @@ static bool batadv_mutual_parents(const struct net_device *dev1,
}
/**
* batadv_is_on_batman_iface - check if a device is a batman iface descendant
* batadv_is_on_batman_iface() - check if a device is a batman iface descendant
* @net_dev: the device to check
*
* If the user creates any virtual device on top of a batman-adv interface, it
@ -202,7 +209,7 @@ static bool batadv_is_valid_iface(const struct net_device *net_dev)
}
/**
* batadv_get_real_netdevice - check if the given netdev struct is a virtual
* batadv_get_real_netdevice() - check if the given netdev struct is a virtual
* interface on top of another 'real' interface
* @netdev: the device to check
*
@ -246,7 +253,7 @@ out:
}
/**
* batadv_get_real_netdev - check if the given net_device struct is a virtual
* batadv_get_real_netdev() - check if the given net_device struct is a virtual
* interface on top of another 'real' interface
* @net_device: the device to check
*
@ -265,7 +272,7 @@ struct net_device *batadv_get_real_netdev(struct net_device *net_device)
}
/**
* batadv_is_wext_netdev - check if the given net_device struct is a
* batadv_is_wext_netdev() - check if the given net_device struct is a
* wext wifi interface
* @net_device: the device to check
*
@ -289,7 +296,7 @@ static bool batadv_is_wext_netdev(struct net_device *net_device)
}
/**
* batadv_is_cfg80211_netdev - check if the given net_device struct is a
* batadv_is_cfg80211_netdev() - check if the given net_device struct is a
* cfg80211 wifi interface
* @net_device: the device to check
*
@ -309,7 +316,7 @@ static bool batadv_is_cfg80211_netdev(struct net_device *net_device)
}
/**
* batadv_wifi_flags_evaluate - calculate wifi flags for net_device
* batadv_wifi_flags_evaluate() - calculate wifi flags for net_device
* @net_device: the device to check
*
* Return: batadv_hard_iface_wifi_flags flags of the device
@ -344,7 +351,7 @@ out:
}
/**
* batadv_is_cfg80211_hardif - check if the given hardif is a cfg80211 wifi
* batadv_is_cfg80211_hardif() - check if the given hardif is a cfg80211 wifi
* interface
* @hard_iface: the device to check
*
@ -362,7 +369,7 @@ bool batadv_is_cfg80211_hardif(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_is_wifi_hardif - check if the given hardif is a wifi interface
* batadv_is_wifi_hardif() - check if the given hardif is a wifi interface
* @hard_iface: the device to check
*
* Return: true if the net device is a 802.11 wireless device, false otherwise.
@ -376,7 +383,7 @@ bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_hardif_no_broadcast - check whether (re)broadcast is necessary
* batadv_hardif_no_broadcast() - check whether (re)broadcast is necessary
* @if_outgoing: the outgoing interface checked and considered for (re)broadcast
* @orig_addr: the originator of this packet
* @orig_neigh: originator address of the forwarder we just got the packet from
@ -560,6 +567,13 @@ static void batadv_hardif_recalc_extra_skbroom(struct net_device *soft_iface)
soft_iface->needed_tailroom = lower_tailroom;
}
/**
* batadv_hardif_min_mtu() - Calculate maximum MTU for soft interface
* @soft_iface: netdev struct of the soft interface
*
* Return: MTU for the soft-interface (limited by the minimal MTU of all active
* slave interfaces)
*/
int batadv_hardif_min_mtu(struct net_device *soft_iface)
{
struct batadv_priv *bat_priv = netdev_priv(soft_iface);
@ -606,7 +620,11 @@ out:
return min_t(int, min_mtu - batadv_max_header_len(), ETH_DATA_LEN);
}
/* adjusts the MTU if a new interface with a smaller MTU appeared. */
/**
* batadv_update_min_mtu() - Adjusts the MTU if a new interface with a smaller
* MTU appeared
* @soft_iface: netdev struct of the soft interface
*/
void batadv_update_min_mtu(struct net_device *soft_iface)
{
soft_iface->mtu = batadv_hardif_min_mtu(soft_iface);
@ -667,7 +685,7 @@ batadv_hardif_deactivate_interface(struct batadv_hard_iface *hard_iface)
}
/**
* batadv_master_del_slave - remove hard_iface from the current master interface
* batadv_master_del_slave() - remove hard_iface from the current master iface
* @slave: the interface enslaved in another master
* @master: the master from which slave has to be removed
*
@ -691,6 +709,14 @@ static int batadv_master_del_slave(struct batadv_hard_iface *slave,
return ret;
}
/**
* batadv_hardif_enable_interface() - Enslave hard interface to soft interface
* @hard_iface: hard interface to add to soft interface
* @net: the applicable net namespace
* @iface_name: name of the soft interface
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
struct net *net, const char *iface_name)
{
@ -802,6 +828,12 @@ err:
return ret;
}
/**
* batadv_hardif_disable_interface() - Remove hard interface from soft interface
* @hard_iface: hard interface to be removed
* @autodel: whether to delete soft interface when it doesn't contain any other
* slave interfaces
*/
void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,
enum batadv_hard_if_cleanup autodel)
{
@ -936,6 +968,9 @@ static void batadv_hardif_remove_interface(struct batadv_hard_iface *hard_iface)
batadv_hardif_put(hard_iface);
}
/**
* batadv_hardif_remove_interfaces() - Remove all hard interfaces
*/
void batadv_hardif_remove_interfaces(void)
{
struct batadv_hard_iface *hard_iface, *hard_iface_tmp;

59
net/batman-adv/hard-interface.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -30,36 +31,74 @@
struct net_device;
struct net;
/**
* enum batadv_hard_if_state - State of a hard interface
*/
enum batadv_hard_if_state {
/**
* @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a
* batman-adv soft interface
*/
BATADV_IF_NOT_IN_USE,
/**
* @BATADV_IF_TO_BE_REMOVED: interface will be removed from soft
* interface
*/
BATADV_IF_TO_BE_REMOVED,
/** @BATADV_IF_INACTIVE: interface is deactivated */
BATADV_IF_INACTIVE,
/** @BATADV_IF_ACTIVE: interface is used */
BATADV_IF_ACTIVE,
/** @BATADV_IF_TO_BE_ACTIVATED: interface is getting activated */
BATADV_IF_TO_BE_ACTIVATED,
/**
* @BATADV_IF_I_WANT_YOU: interface is queued up (using sysfs) for being
* added as slave interface of a batman-adv soft interface
*/
BATADV_IF_I_WANT_YOU,
};
/**
* enum batadv_hard_if_bcast - broadcast avoidance options
* @BATADV_HARDIF_BCAST_OK: Do broadcast on according hard interface
* @BATADV_HARDIF_BCAST_NORECIPIENT: Broadcast not needed, there is no recipient
* @BATADV_HARDIF_BCAST_DUPFWD: There is just the neighbor we got it from
* @BATADV_HARDIF_BCAST_DUPORIG: There is just the originator
*/
enum batadv_hard_if_bcast {
/** @BATADV_HARDIF_BCAST_OK: Do broadcast on according hard interface */
BATADV_HARDIF_BCAST_OK = 0,
/**
* @BATADV_HARDIF_BCAST_NORECIPIENT: Broadcast not needed, there is no
* recipient
*/
BATADV_HARDIF_BCAST_NORECIPIENT,
/**
* @BATADV_HARDIF_BCAST_DUPFWD: There is just the neighbor we got it
* from
*/
BATADV_HARDIF_BCAST_DUPFWD,
/** @BATADV_HARDIF_BCAST_DUPORIG: There is just the originator */
BATADV_HARDIF_BCAST_DUPORIG,
};
/**
* enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
* @BATADV_IF_CLEANUP_KEEP: Don't automatically delete soft-interface
* @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was removed
*/
enum batadv_hard_if_cleanup {
/**
* @BATADV_IF_CLEANUP_KEEP: Don't automatically delete soft-interface
*/
BATADV_IF_CLEANUP_KEEP,
/**
* @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was
* removed
*/
BATADV_IF_CLEANUP_AUTO,
};
@ -82,7 +121,7 @@ int batadv_hardif_no_broadcast(struct batadv_hard_iface *if_outgoing,
u8 *orig_addr, u8 *orig_neigh);
/**
* batadv_hardif_put - decrement the hard interface refcounter and possibly
* batadv_hardif_put() - decrement the hard interface refcounter and possibly
* release it
* @hard_iface: the hard interface to free
*/
@ -91,6 +130,12 @@ static inline void batadv_hardif_put(struct batadv_hard_iface *hard_iface)
kref_put(&hard_iface->refcount, batadv_hardif_release);
}
/**
* batadv_primary_if_get_selected() - Get reference to primary interface
* @bat_priv: the bat priv with all the soft interface information
*
* Return: primary interface (with increased refcnt), otherwise NULL
*/
static inline struct batadv_hard_iface *
batadv_primary_if_get_selected(struct batadv_priv *bat_priv)
{

20
net/batman-adv/hash.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2006-2017 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
@ -18,7 +19,7 @@
#include "hash.h"
#include "main.h"
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/lockdep.h>
#include <linux/slab.h>
@ -33,7 +34,10 @@ static void batadv_hash_init(struct batadv_hashtable *hash)
}
}
/* free only the hashtable and the hash itself. */
/**
* batadv_hash_destroy() - Free only the hashtable and the hash itself
* @hash: hash object to destroy
*/
void batadv_hash_destroy(struct batadv_hashtable *hash)
{
kfree(hash->list_locks);
@ -41,7 +45,12 @@ void batadv_hash_destroy(struct batadv_hashtable *hash)
kfree(hash);
}
/* allocates and clears the hash */
/**
* batadv_hash_new() - Allocates and clears the hashtable
* @size: number of hash buckets to allocate
*
* Return: newly allocated hashtable, NULL on errors
*/
struct batadv_hashtable *batadv_hash_new(u32 size)
{
struct batadv_hashtable *hash;
@ -70,6 +79,11 @@ free_hash:
return NULL;
}
/**
* batadv_hash_set_lock_class() - Set specific lockdep class for hash spinlocks
* @hash: hash object to modify
* @key: lockdep class key address
*/
void batadv_hash_set_lock_class(struct batadv_hashtable *hash,
struct lock_class_key *key)
{

28
net/batman-adv/hash.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2006-2017 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich, Marek Lindner
@ -45,10 +46,18 @@ typedef bool (*batadv_hashdata_compare_cb)(const struct hlist_node *,
typedef u32 (*batadv_hashdata_choose_cb)(const void *, u32);
typedef void (*batadv_hashdata_free_cb)(struct hlist_node *, void *);
/**
* struct batadv_hashtable - Wrapper of simple hlist based hashtable
*/
struct batadv_hashtable {
struct hlist_head *table; /* the hashtable itself with the buckets */
spinlock_t *list_locks; /* spinlock for each hash list entry */
u32 size; /* size of hashtable */
/** @table: the hashtable itself with the buckets */
struct hlist_head *table;
/** @list_locks: spinlock for each hash list entry */
spinlock_t *list_locks;
/** @size: size of hashtable */
u32 size;
};
/* allocates and clears the hash */
@ -62,7 +71,7 @@ void batadv_hash_set_lock_class(struct batadv_hashtable *hash,
void batadv_hash_destroy(struct batadv_hashtable *hash);
/**
* batadv_hash_add - adds data to the hashtable
* batadv_hash_add() - adds data to the hashtable
* @hash: storage hash table
* @compare: callback to determine if 2 hash elements are identical
* @choose: callback calculating the hash index
@ -112,8 +121,15 @@ out:
return ret;
}
/* removes data from hash, if found. data could be the structure you use with
* just the key filled, we just need the key for comparing.
/**
* batadv_hash_remove() - Removes data from hash, if found
* @hash: hash table
* @compare: callback to determine if 2 hash elements are identical
* @choose: callback calculating the hash index
* @data: data passed to the aforementioned callbacks as argument
*
* ata could be the structure you use with just the key filled, we just need
* the key for comparing.
*
* Return: returns pointer do data on success, so you can remove the used
* structure yourself, or NULL on error

15
net/batman-adv/icmp_socket.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner
@ -26,6 +27,7 @@
#include <linux/export.h>
#include <linux/fcntl.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/kernel.h>
#include <linux/list.h>
@ -55,6 +57,9 @@ static void batadv_socket_add_packet(struct batadv_socket_client *socket_client,
struct batadv_icmp_header *icmph,
size_t icmp_len);
/**
* batadv_socket_init() - Initialize soft interface independent socket data
*/
void batadv_socket_init(void)
{
memset(batadv_socket_client_hash, 0, sizeof(batadv_socket_client_hash));
@ -314,6 +319,12 @@ static const struct file_operations batadv_fops = {
.llseek = no_llseek,
};
/**
* batadv_socket_setup() - Create debugfs "socket" file
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_socket_setup(struct batadv_priv *bat_priv)
{
struct dentry *d;
@ -333,7 +344,7 @@ err:
}
/**
* batadv_socket_add_packet - schedule an icmp packet to be sent to
* batadv_socket_add_packet() - schedule an icmp packet to be sent to
* userspace on an icmp socket.
* @socket_client: the socket this packet belongs to
* @icmph: pointer to the header of the icmp packet
@ -390,7 +401,7 @@ static void batadv_socket_add_packet(struct batadv_socket_client *socket_client,
}
/**
* batadv_socket_receive_packet - schedule an icmp packet to be received
* batadv_socket_receive_packet() - schedule an icmp packet to be received
* locally and sent to userspace.
* @icmph: pointer to the header of the icmp packet
* @icmp_len: total length of the icmp packet

1
net/batman-adv/icmp_socket.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner

19
net/batman-adv/log.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2010-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner
@ -24,6 +25,7 @@
#include <linux/export.h>
#include <linux/fcntl.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
@ -86,6 +88,13 @@ static int batadv_fdebug_log(struct batadv_priv_debug_log *debug_log,
return 0;
}
/**
* batadv_debug_log() - Add debug log entry
* @bat_priv: the bat priv with all the soft interface information
* @fmt: format string
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
{
va_list args;
@ -197,6 +206,12 @@ static const struct file_operations batadv_log_fops = {
.llseek = no_llseek,
};
/**
* batadv_debug_log_setup() - Initialize debug log
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_debug_log_setup(struct batadv_priv *bat_priv)
{
struct dentry *d;
@ -222,6 +237,10 @@ err:
return -ENOMEM;
}
/**
* batadv_debug_log_cleanup() - Destroy debug log
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
{
kfree(bat_priv->debug_log);

62
net/batman-adv/log.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -44,25 +45,33 @@ static inline void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
/**
* enum batadv_dbg_level - available log levels
* @BATADV_DBG_BATMAN: OGM and TQ computations related messages
* @BATADV_DBG_ROUTES: route added / changed / deleted
* @BATADV_DBG_TT: translation table messages
* @BATADV_DBG_BLA: bridge loop avoidance messages
* @BATADV_DBG_DAT: ARP snooping and DAT related messages
* @BATADV_DBG_NC: network coding related messages
* @BATADV_DBG_MCAST: multicast related messages
* @BATADV_DBG_TP_METER: throughput meter messages
* @BATADV_DBG_ALL: the union of all the above log levels
*/
enum batadv_dbg_level {
/** @BATADV_DBG_BATMAN: OGM and TQ computations related messages */
BATADV_DBG_BATMAN = BIT(0),
/** @BATADV_DBG_ROUTES: route added / changed / deleted */
BATADV_DBG_ROUTES = BIT(1),
/** @BATADV_DBG_TT: translation table messages */
BATADV_DBG_TT = BIT(2),
/** @BATADV_DBG_BLA: bridge loop avoidance messages */
BATADV_DBG_BLA = BIT(3),
/** @BATADV_DBG_DAT: ARP snooping and DAT related messages */
BATADV_DBG_DAT = BIT(4),
/** @BATADV_DBG_NC: network coding related messages */
BATADV_DBG_NC = BIT(5),
/** @BATADV_DBG_MCAST: multicast related messages */
BATADV_DBG_MCAST = BIT(6),
/** @BATADV_DBG_TP_METER: throughput meter messages */
BATADV_DBG_TP_METER = BIT(7),
/** @BATADV_DBG_ALL: the union of all the above log levels */
BATADV_DBG_ALL = 255,
};
@ -70,7 +79,14 @@ enum batadv_dbg_level {
int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
__printf(2, 3);
/* possibly ratelimited debug output */
/**
* _batadv_dbg() - Store debug output with(out) ratelimiting
* @type: type of debug message
* @bat_priv: the bat priv with all the soft interface information
* @ratelimited: whether output should be rate limited
* @fmt: format string
* @arg...: variable arguments
*/
#define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...) \
do { \
struct batadv_priv *__batpriv = (bat_priv); \
@ -89,11 +105,30 @@ static inline void _batadv_dbg(int type __always_unused,
}
#endif
/**
* batadv_dbg() - Store debug output without ratelimiting
* @type: type of debug message
* @bat_priv: the bat priv with all the soft interface information
* @arg...: format string and variable arguments
*/
#define batadv_dbg(type, bat_priv, arg...) \
_batadv_dbg(type, bat_priv, 0, ## arg)
/**
* batadv_dbg_ratelimited() - Store debug output with ratelimiting
* @type: type of debug message
* @bat_priv: the bat priv with all the soft interface information
* @arg...: format string and variable arguments
*/
#define batadv_dbg_ratelimited(type, bat_priv, arg...) \
_batadv_dbg(type, bat_priv, 1, ## arg)
/**
* batadv_info() - Store message in debug buffer and print it to kmsg buffer
* @net_dev: the soft interface net device
* @fmt: format string
* @arg...: variable arguments
*/
#define batadv_info(net_dev, fmt, arg...) \
do { \
struct net_device *_netdev = (net_dev); \
@ -101,6 +136,13 @@ static inline void _batadv_dbg(int type __always_unused,
batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
pr_info("%s: " fmt, _netdev->name, ## arg); \
} while (0)
/**
* batadv_err() - Store error in debug buffer and print it to kmsg buffer
* @net_dev: the soft interface net device
* @fmt: format string
* @arg...: variable arguments
*/
#define batadv_err(net_dev, fmt, arg...) \
do { \
struct net_device *_netdev = (net_dev); \

52
net/batman-adv/main.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -18,12 +19,12 @@
#include "main.h"
#include <linux/atomic.h>
#include <linux/bug.h>
#include <linux/build_bug.h>
#include <linux/byteorder/generic.h>
#include <linux/crc32c.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/genetlink.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/init.h>
@ -139,6 +140,12 @@ static void __exit batadv_exit(void)
batadv_tt_cache_destroy();
}
/**
* batadv_mesh_init() - Initialize soft interface
* @soft_iface: netdev struct of the soft interface
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_mesh_init(struct net_device *soft_iface)
{
struct batadv_priv *bat_priv = netdev_priv(soft_iface);
@ -216,6 +223,10 @@ err:
return ret;
}
/**
* batadv_mesh_free() - Deinitialize soft interface
* @soft_iface: netdev struct of the soft interface
*/
void batadv_mesh_free(struct net_device *soft_iface)
{
struct batadv_priv *bat_priv = netdev_priv(soft_iface);
@ -255,8 +266,8 @@ void batadv_mesh_free(struct net_device *soft_iface)
}
/**
* batadv_is_my_mac - check if the given mac address belongs to any of the real
* interfaces in the current mesh
* batadv_is_my_mac() - check if the given mac address belongs to any of the
* real interfaces in the current mesh
* @bat_priv: the bat priv with all the soft interface information
* @addr: the address to check
*
@ -286,7 +297,7 @@ bool batadv_is_my_mac(struct batadv_priv *bat_priv, const u8 *addr)
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_seq_print_text_primary_if_get - called from debugfs table printing
* batadv_seq_print_text_primary_if_get() - called from debugfs table printing
* function that requires the primary interface
* @seq: debugfs table seq_file struct
*
@ -323,7 +334,7 @@ out:
#endif
/**
* batadv_max_header_len - calculate maximum encapsulation overhead for a
* batadv_max_header_len() - calculate maximum encapsulation overhead for a
* payload packet
*
* Return: the maximum encapsulation overhead in bytes.
@ -348,7 +359,7 @@ int batadv_max_header_len(void)
}
/**
* batadv_skb_set_priority - sets skb priority according to packet content
* batadv_skb_set_priority() - sets skb priority according to packet content
* @skb: the packet to be sent
* @offset: offset to the packet content
*
@ -412,6 +423,16 @@ static int batadv_recv_unhandled_packet(struct sk_buff *skb,
/* incoming packets with the batman ethertype received on any active hard
* interface
*/
/**
* batadv_batman_skb_recv() - Handle incoming message from an hard interface
* @skb: the received packet
* @dev: the net device that the packet was received on
* @ptype: packet type of incoming packet (ETH_P_BATMAN)
* @orig_dev: the original receive net device (e.g. bonded device)
*
* Return: NET_RX_SUCCESS on success or NET_RX_DROP in case of failure
*/
int batadv_batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype,
struct net_device *orig_dev)
@ -535,6 +556,13 @@ static void batadv_recv_handler_init(void)
batadv_rx_handler[BATADV_UNICAST_FRAG] = batadv_recv_frag_packet;
}
/**
* batadv_recv_handler_register() - Register handler for batman-adv packet type
* @packet_type: batadv_packettype which should be handled
* @recv_handler: receive handler for the packet type
*
* Return: 0 on success or negative error number in case of failure
*/
int
batadv_recv_handler_register(u8 packet_type,
int (*recv_handler)(struct sk_buff *,
@ -552,13 +580,17 @@ batadv_recv_handler_register(u8 packet_type,
return 0;
}
/**
* batadv_recv_handler_unregister() - Unregister handler for packet type
* @packet_type: batadv_packettype which should no longer be handled
*/
void batadv_recv_handler_unregister(u8 packet_type)
{
batadv_rx_handler[packet_type] = batadv_recv_unhandled_packet;
}
/**
* batadv_skb_crc32 - calculate CRC32 of the whole packet and skip bytes in
* batadv_skb_crc32() - calculate CRC32 of the whole packet and skip bytes in
* the header
* @skb: skb pointing to fragmented socket buffers
* @payload_ptr: Pointer to position inside the head buffer of the skb
@ -591,7 +623,7 @@ __be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr)
}
/**
* batadv_get_vid - extract the VLAN identifier from skb if any
* batadv_get_vid() - extract the VLAN identifier from skb if any
* @skb: the buffer containing the packet
* @header_len: length of the batman header preceding the ethernet header
*
@ -618,7 +650,7 @@ unsigned short batadv_get_vid(struct sk_buff *skb, size_t header_len)
}
/**
* batadv_vlan_ap_isola_get - return the AP isolation status for the given vlan
* batadv_vlan_ap_isola_get() - return AP isolation status for the given vlan
* @bat_priv: the bat priv with all the soft interface information
* @vid: the VLAN identifier for which the AP isolation attributed as to be
* looked up

123
net/batman-adv/main.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -24,7 +25,7 @@
#define BATADV_DRIVER_DEVICE "batman-adv"
#ifndef BATADV_SOURCE_VERSION
#define BATADV_SOURCE_VERSION "2017.4"
#define BATADV_SOURCE_VERSION "2018.0"
#endif
/* B.A.T.M.A.N. parameters */
@ -140,24 +141,56 @@
*/
#define BATADV_TP_MAX_NUM 5
/**
* enum batadv_mesh_state - State of a soft interface
*/
enum batadv_mesh_state {
/** @BATADV_MESH_INACTIVE: soft interface is not yet running */
BATADV_MESH_INACTIVE,
/** @BATADV_MESH_ACTIVE: interface is up and running */
BATADV_MESH_ACTIVE,
/** @BATADV_MESH_DEACTIVATING: interface is getting shut down */
BATADV_MESH_DEACTIVATING,
};
#define BATADV_BCAST_QUEUE_LEN 256
#define BATADV_BATMAN_QUEUE_LEN 256
/**
* enum batadv_uev_action - action type of uevent
*/
enum batadv_uev_action {
/** @BATADV_UEV_ADD: gateway was selected (after none was selected) */
BATADV_UEV_ADD = 0,
/**
* @BATADV_UEV_DEL: selected gateway was removed and none is selected
* anymore
*/
BATADV_UEV_DEL,
/**
* @BATADV_UEV_CHANGE: a different gateway was selected as based gateway
*/
BATADV_UEV_CHANGE,
/**
* @BATADV_UEV_LOOPDETECT: loop was detected which cannot be handled by
* bridge loop avoidance
*/
BATADV_UEV_LOOPDETECT,
};
/**
* enum batadv_uev_type - Type of uevent
*/
enum batadv_uev_type {
/** @BATADV_UEV_GW: selected gateway was modified */
BATADV_UEV_GW = 0,
/** @BATADV_UEV_BLA: bridge loop avoidance event */
BATADV_UEV_BLA,
};
@ -202,7 +235,7 @@ struct seq_file;
struct sk_buff;
/**
* batadv_print_vid - return printable version of vid information
* batadv_print_vid() - return printable version of vid information
* @vid: the VLAN identifier
*
* Return: -1 when no VLAN is used, VLAN id otherwise
@ -238,7 +271,7 @@ void batadv_recv_handler_unregister(u8 packet_type);
__be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr);
/**
* batadv_compare_eth - Compare two not u16 aligned Ethernet addresses
* batadv_compare_eth() - Compare two not u16 aligned Ethernet addresses
* @data1: Pointer to a six-byte array containing the Ethernet address
* @data2: Pointer other six-byte array containing the Ethernet address
*
@ -252,7 +285,7 @@ static inline bool batadv_compare_eth(const void *data1, const void *data2)
}
/**
* batadv_has_timed_out - compares current time (jiffies) and timestamp +
* batadv_has_timed_out() - compares current time (jiffies) and timestamp +
* timeout
* @timestamp: base value to compare with (in jiffies)
* @timeout: added to base value before comparing (in milliseconds)
@ -265,40 +298,96 @@ static inline bool batadv_has_timed_out(unsigned long timestamp,
return time_is_before_jiffies(timestamp + msecs_to_jiffies(timeout));
}
/**
* batadv_atomic_dec_not_zero() - Decrease unless the number is 0
* @v: pointer of type atomic_t
*
* Return: non-zero if v was not 0, and zero otherwise.
*/
#define batadv_atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
/* Returns the smallest signed integer in two's complement with the sizeof x */
/**
* batadv_smallest_signed_int() - Returns the smallest signed integer in two's
* complement with the sizeof x
* @x: type of integer
*
* Return: smallest signed integer of type
*/
#define batadv_smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u)))
/* Checks if a sequence number x is a predecessor/successor of y.
* they handle overflows/underflows and can correctly check for a
* predecessor/successor unless the variable sequence number has grown by
* more then 2**(bitwidth(x)-1)-1.
/**
* batadv_seq_before() - Checks if a sequence number x is a predecessor of y
* @x: potential predecessor of @y
* @y: value to compare @x against
*
* It handles overflows/underflows and can correctly check for a predecessor
* unless the variable sequence number has grown by more then
* 2**(bitwidth(x)-1)-1.
*
* This means that for a u8 with the maximum value 255, it would think:
* - when adding nothing - it is neither a predecessor nor a successor
* - before adding more than 127 to the starting value - it is a predecessor,
* - when adding 128 - it is neither a predecessor nor a successor,
* - after adding more than 127 to the starting value - it is a successor
*
* * when adding nothing - it is neither a predecessor nor a successor
* * before adding more than 127 to the starting value - it is a predecessor,
* * when adding 128 - it is neither a predecessor nor a successor,
* * after adding more than 127 to the starting value - it is a successor
*
* Return: true when x is a predecessor of y, false otherwise
*/
#define batadv_seq_before(x, y) ({typeof(x)_d1 = (x); \
typeof(y)_d2 = (y); \
typeof(x)_dummy = (_d1 - _d2); \
(void)(&_d1 == &_d2); \
_dummy > batadv_smallest_signed_int(_dummy); })
/**
* batadv_seq_after() - Checks if a sequence number x is a successor of y
* @x: potential sucessor of @y
* @y: value to compare @x against
*
* It handles overflows/underflows and can correctly check for a successor
* unless the variable sequence number has grown by more then
* 2**(bitwidth(x)-1)-1.
*
* This means that for a u8 with the maximum value 255, it would think:
*
* * when adding nothing - it is neither a predecessor nor a successor
* * before adding more than 127 to the starting value - it is a predecessor,
* * when adding 128 - it is neither a predecessor nor a successor,
* * after adding more than 127 to the starting value - it is a successor
*
* Return: true when x is a successor of y, false otherwise
*/
#define batadv_seq_after(x, y) batadv_seq_before(y, x)
/* Stop preemption on local cpu while incrementing the counter */
/**
* batadv_add_counter() - Add to per cpu statistics counter of soft interface
* @bat_priv: the bat priv with all the soft interface information
* @idx: counter index which should be modified
* @count: value to increase counter by
*
* Stop preemption on local cpu while incrementing the counter
*/
static inline void batadv_add_counter(struct batadv_priv *bat_priv, size_t idx,
size_t count)
{
this_cpu_add(bat_priv->bat_counters[idx], count);
}
/**
* batadv_inc_counter() - Increase per cpu statistics counter of soft interface
* @b: the bat priv with all the soft interface information
* @i: counter index which should be modified
*/
#define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1)
/* Define a macro to reach the control buffer of the skb. The members of the
* control buffer are defined in struct batadv_skb_cb in types.h.
* The macro is inspired by the similar macro TCP_SKB_CB() in tcp.h.
/**
* BATADV_SKB_CB() - Get batadv_skb_cb from skb control buffer
* @__skb: skb holding the control buffer
*
* The members of the control buffer are defined in struct batadv_skb_cb in
* types.h. The macro is inspired by the similar macro TCP_SKB_CB() in tcp.h.
*
* Return: pointer to the batadv_skb_cb of the skb
*/
#define BATADV_SKB_CB(__skb) ((struct batadv_skb_cb *)&((__skb)->cb[0]))

81
net/batman-adv/multicast.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2014-2017 B.A.T.M.A.N. contributors:
*
* Linus Lüssing
@ -24,7 +25,7 @@
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/icmpv6.h>
#include <linux/if_bridge.h>
#include <linux/if_ether.h>
@ -65,7 +66,7 @@
static void batadv_mcast_mla_update(struct work_struct *work);
/**
* batadv_mcast_start_timer - schedule the multicast periodic worker
* batadv_mcast_start_timer() - schedule the multicast periodic worker
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_mcast_start_timer(struct batadv_priv *bat_priv)
@ -75,7 +76,7 @@ static void batadv_mcast_start_timer(struct batadv_priv *bat_priv)
}
/**
* batadv_mcast_get_bridge - get the bridge on top of the softif if it exists
* batadv_mcast_get_bridge() - get the bridge on top of the softif if it exists
* @soft_iface: netdev struct of the mesh interface
*
* If the given soft interface has a bridge on top then the refcount
@ -101,7 +102,7 @@ static struct net_device *batadv_mcast_get_bridge(struct net_device *soft_iface)
}
/**
* batadv_mcast_mla_softif_get - get softif multicast listeners
* batadv_mcast_mla_softif_get() - get softif multicast listeners
* @dev: the device to collect multicast addresses from
* @mcast_list: a list to put found addresses into
*
@ -147,7 +148,7 @@ static int batadv_mcast_mla_softif_get(struct net_device *dev,
}
/**
* batadv_mcast_mla_is_duplicate - check whether an address is in a list
* batadv_mcast_mla_is_duplicate() - check whether an address is in a list
* @mcast_addr: the multicast address to check
* @mcast_list: the list with multicast addresses to search in
*
@ -167,7 +168,7 @@ static bool batadv_mcast_mla_is_duplicate(u8 *mcast_addr,
}
/**
* batadv_mcast_mla_br_addr_cpy - copy a bridge multicast address
* batadv_mcast_mla_br_addr_cpy() - copy a bridge multicast address
* @dst: destination to write to - a multicast MAC address
* @src: source to read from - a multicast IP address
*
@ -191,7 +192,7 @@ static void batadv_mcast_mla_br_addr_cpy(char *dst, const struct br_ip *src)
}
/**
* batadv_mcast_mla_bridge_get - get bridged-in multicast listeners
* batadv_mcast_mla_bridge_get() - get bridged-in multicast listeners
* @dev: a bridge slave whose bridge to collect multicast addresses from
* @mcast_list: a list to put found addresses into
*
@ -244,7 +245,7 @@ out:
}
/**
* batadv_mcast_mla_list_free - free a list of multicast addresses
* batadv_mcast_mla_list_free() - free a list of multicast addresses
* @mcast_list: the list to free
*
* Removes and frees all items in the given mcast_list.
@ -261,7 +262,7 @@ static void batadv_mcast_mla_list_free(struct hlist_head *mcast_list)
}
/**
* batadv_mcast_mla_tt_retract - clean up multicast listener announcements
* batadv_mcast_mla_tt_retract() - clean up multicast listener announcements
* @bat_priv: the bat priv with all the soft interface information
* @mcast_list: a list of addresses which should _not_ be removed
*
@ -297,7 +298,7 @@ static void batadv_mcast_mla_tt_retract(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_mla_tt_add - add multicast listener announcements
* batadv_mcast_mla_tt_add() - add multicast listener announcements
* @bat_priv: the bat priv with all the soft interface information
* @mcast_list: a list of addresses which are going to get added
*
@ -333,7 +334,7 @@ static void batadv_mcast_mla_tt_add(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_has_bridge - check whether the soft-iface is bridged
* batadv_mcast_has_bridge() - check whether the soft-iface is bridged
* @bat_priv: the bat priv with all the soft interface information
*
* Checks whether there is a bridge on top of our soft interface.
@ -354,7 +355,8 @@ static bool batadv_mcast_has_bridge(struct batadv_priv *bat_priv)
}
/**
* batadv_mcast_querier_log - debug output regarding the querier status on link
* batadv_mcast_querier_log() - debug output regarding the querier status on
* link
* @bat_priv: the bat priv with all the soft interface information
* @str_proto: a string for the querier protocol (e.g. "IGMP" or "MLD")
* @old_state: the previous querier state on our link
@ -405,7 +407,8 @@ batadv_mcast_querier_log(struct batadv_priv *bat_priv, char *str_proto,
}
/**
* batadv_mcast_bridge_log - debug output for topology changes in bridged setups
* batadv_mcast_bridge_log() - debug output for topology changes in bridged
* setups
* @bat_priv: the bat priv with all the soft interface information
* @bridged: a flag about whether the soft interface is currently bridged or not
* @querier_ipv4: (maybe) new status of a potential, selected IGMP querier
@ -444,7 +447,7 @@ batadv_mcast_bridge_log(struct batadv_priv *bat_priv, bool bridged,
}
/**
* batadv_mcast_flags_logs - output debug information about mcast flag changes
* batadv_mcast_flags_logs() - output debug information about mcast flag changes
* @bat_priv: the bat priv with all the soft interface information
* @flags: flags indicating the new multicast state
*
@ -470,7 +473,7 @@ static void batadv_mcast_flags_log(struct batadv_priv *bat_priv, u8 flags)
}
/**
* batadv_mcast_mla_tvlv_update - update multicast tvlv
* batadv_mcast_mla_tvlv_update() - update multicast tvlv
* @bat_priv: the bat priv with all the soft interface information
*
* Updates the own multicast tvlv with our current multicast related settings,
@ -545,7 +548,7 @@ update:
}
/**
* __batadv_mcast_mla_update - update the own MLAs
* __batadv_mcast_mla_update() - update the own MLAs
* @bat_priv: the bat priv with all the soft interface information
*
* Updates the own multicast listener announcements in the translation
@ -582,7 +585,7 @@ out:
}
/**
* batadv_mcast_mla_update - update the own MLAs
* batadv_mcast_mla_update() - update the own MLAs
* @work: kernel work struct
*
* Updates the own multicast listener announcements in the translation
@ -605,7 +608,7 @@ static void batadv_mcast_mla_update(struct work_struct *work)
}
/**
* batadv_mcast_is_report_ipv4 - check for IGMP reports
* batadv_mcast_is_report_ipv4() - check for IGMP reports
* @skb: the ethernet frame destined for the mesh
*
* This call might reallocate skb data.
@ -630,7 +633,8 @@ static bool batadv_mcast_is_report_ipv4(struct sk_buff *skb)
}
/**
* batadv_mcast_forw_mode_check_ipv4 - check for optimized forwarding potential
* batadv_mcast_forw_mode_check_ipv4() - check for optimized forwarding
* potential
* @bat_priv: the bat priv with all the soft interface information
* @skb: the IPv4 packet to check
* @is_unsnoopable: stores whether the destination is snoopable
@ -671,7 +675,7 @@ static int batadv_mcast_forw_mode_check_ipv4(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_is_report_ipv6 - check for MLD reports
* batadv_mcast_is_report_ipv6() - check for MLD reports
* @skb: the ethernet frame destined for the mesh
*
* This call might reallocate skb data.
@ -695,7 +699,8 @@ static bool batadv_mcast_is_report_ipv6(struct sk_buff *skb)
}
/**
* batadv_mcast_forw_mode_check_ipv6 - check for optimized forwarding potential
* batadv_mcast_forw_mode_check_ipv6() - check for optimized forwarding
* potential
* @bat_priv: the bat priv with all the soft interface information
* @skb: the IPv6 packet to check
* @is_unsnoopable: stores whether the destination is snoopable
@ -736,7 +741,7 @@ static int batadv_mcast_forw_mode_check_ipv6(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_forw_mode_check - check for optimized forwarding potential
* batadv_mcast_forw_mode_check() - check for optimized forwarding potential
* @bat_priv: the bat priv with all the soft interface information
* @skb: the multicast frame to check
* @is_unsnoopable: stores whether the destination is snoopable
@ -774,7 +779,7 @@ static int batadv_mcast_forw_mode_check(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_forw_want_all_ip_count - count nodes with unspecific mcast
* batadv_mcast_forw_want_all_ip_count() - count nodes with unspecific mcast
* interest
* @bat_priv: the bat priv with all the soft interface information
* @ethhdr: ethernet header of a packet
@ -798,7 +803,7 @@ static int batadv_mcast_forw_want_all_ip_count(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_forw_tt_node_get - get a multicast tt node
* batadv_mcast_forw_tt_node_get() - get a multicast tt node
* @bat_priv: the bat priv with all the soft interface information
* @ethhdr: the ether header containing the multicast destination
*
@ -814,7 +819,7 @@ batadv_mcast_forw_tt_node_get(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_forw_ipv4_node_get - get a node with an ipv4 flag
* batadv_mcast_forw_ipv4_node_get() - get a node with an ipv4 flag
* @bat_priv: the bat priv with all the soft interface information
*
* Return: an orig_node which has the BATADV_MCAST_WANT_ALL_IPV4 flag set and
@ -841,7 +846,7 @@ batadv_mcast_forw_ipv4_node_get(struct batadv_priv *bat_priv)
}
/**
* batadv_mcast_forw_ipv6_node_get - get a node with an ipv6 flag
* batadv_mcast_forw_ipv6_node_get() - get a node with an ipv6 flag
* @bat_priv: the bat priv with all the soft interface information
*
* Return: an orig_node which has the BATADV_MCAST_WANT_ALL_IPV6 flag set
@ -868,7 +873,7 @@ batadv_mcast_forw_ipv6_node_get(struct batadv_priv *bat_priv)
}
/**
* batadv_mcast_forw_ip_node_get - get a node with an ipv4/ipv6 flag
* batadv_mcast_forw_ip_node_get() - get a node with an ipv4/ipv6 flag
* @bat_priv: the bat priv with all the soft interface information
* @ethhdr: an ethernet header to determine the protocol family from
*
@ -892,7 +897,7 @@ batadv_mcast_forw_ip_node_get(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_forw_unsnoop_node_get - get a node with an unsnoopable flag
* batadv_mcast_forw_unsnoop_node_get() - get a node with an unsnoopable flag
* @bat_priv: the bat priv with all the soft interface information
*
* Return: an orig_node which has the BATADV_MCAST_WANT_ALL_UNSNOOPABLES flag
@ -919,7 +924,7 @@ batadv_mcast_forw_unsnoop_node_get(struct batadv_priv *bat_priv)
}
/**
* batadv_mcast_forw_mode - check on how to forward a multicast packet
* batadv_mcast_forw_mode() - check on how to forward a multicast packet
* @bat_priv: the bat priv with all the soft interface information
* @skb: The multicast packet to check
* @orig: an originator to be set to forward the skb to
@ -973,7 +978,7 @@ batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
}
/**
* batadv_mcast_want_unsnoop_update - update unsnoop counter and list
* batadv_mcast_want_unsnoop_update() - update unsnoop counter and list
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node which multicast state might have changed of
* @mcast_flags: flags indicating the new multicast state
@ -1018,7 +1023,7 @@ static void batadv_mcast_want_unsnoop_update(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_want_ipv4_update - update want-all-ipv4 counter and list
* batadv_mcast_want_ipv4_update() - update want-all-ipv4 counter and list
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node which multicast state might have changed of
* @mcast_flags: flags indicating the new multicast state
@ -1063,7 +1068,7 @@ static void batadv_mcast_want_ipv4_update(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_want_ipv6_update - update want-all-ipv6 counter and list
* batadv_mcast_want_ipv6_update() - update want-all-ipv6 counter and list
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node which multicast state might have changed of
* @mcast_flags: flags indicating the new multicast state
@ -1108,7 +1113,7 @@ static void batadv_mcast_want_ipv6_update(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_tvlv_ogm_handler - process incoming multicast tvlv container
* batadv_mcast_tvlv_ogm_handler() - process incoming multicast tvlv container
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node of the ogm
* @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
@ -1164,7 +1169,7 @@ static void batadv_mcast_tvlv_ogm_handler(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_init - initialize the multicast optimizations structures
* batadv_mcast_init() - initialize the multicast optimizations structures
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_mcast_init(struct batadv_priv *bat_priv)
@ -1179,7 +1184,7 @@ void batadv_mcast_init(struct batadv_priv *bat_priv)
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_mcast_flags_print_header - print own mcast flags to debugfs table
* batadv_mcast_flags_print_header() - print own mcast flags to debugfs table
* @bat_priv: the bat priv with all the soft interface information
* @seq: debugfs table seq_file struct
*
@ -1220,7 +1225,7 @@ static void batadv_mcast_flags_print_header(struct batadv_priv *bat_priv,
}
/**
* batadv_mcast_flags_seq_print_text - print the mcast flags of other nodes
* batadv_mcast_flags_seq_print_text() - print the mcast flags of other nodes
* @seq: seq file to print on
* @offset: not used
*
@ -1281,7 +1286,7 @@ int batadv_mcast_flags_seq_print_text(struct seq_file *seq, void *offset)
#endif
/**
* batadv_mcast_free - free the multicast optimizations structures
* batadv_mcast_free() - free the multicast optimizations structures
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_mcast_free(struct batadv_priv *bat_priv)
@ -1296,7 +1301,7 @@ void batadv_mcast_free(struct batadv_priv *bat_priv)
}
/**
* batadv_mcast_purge_orig - reset originator global mcast state modifications
* batadv_mcast_purge_orig() - reset originator global mcast state modifications
* @orig: the originator which is going to get purged
*/
void batadv_mcast_purge_orig(struct batadv_orig_node *orig)

17
net/batman-adv/multicast.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2014-2017 B.A.T.M.A.N. contributors:
*
* Linus Lüssing
@ -25,15 +26,21 @@ struct sk_buff;
/**
* enum batadv_forw_mode - the way a packet should be forwarded as
* @BATADV_FORW_ALL: forward the packet to all nodes (currently via classic
* flooding)
* @BATADV_FORW_SINGLE: forward the packet to a single node (currently via the
* BATMAN unicast routing protocol)
* @BATADV_FORW_NONE: don't forward, drop it
*/
enum batadv_forw_mode {
/**
* @BATADV_FORW_ALL: forward the packet to all nodes (currently via
* classic flooding)
*/
BATADV_FORW_ALL,
/**
* @BATADV_FORW_SINGLE: forward the packet to a single node (currently
* via the BATMAN unicast routing protocol)
*/
BATADV_FORW_SINGLE,
/** @BATADV_FORW_NONE: don't forward, drop it */
BATADV_FORW_NONE,
};

25
net/batman-adv/netlink.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2016-2017 B.A.T.M.A.N. contributors:
*
* Matthias Schiffer
@ -23,8 +24,8 @@
#include <linux/cache.h>
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/fs.h>
#include <linux/genetlink.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/init.h>
#include <linux/kernel.h>
@ -99,7 +100,7 @@ static const struct nla_policy batadv_netlink_policy[NUM_BATADV_ATTR] = {
};
/**
* batadv_netlink_get_ifindex - Extract an interface index from a message
* batadv_netlink_get_ifindex() - Extract an interface index from a message
* @nlh: Message header
* @attrtype: Attribute which holds an interface index
*
@ -114,7 +115,7 @@ batadv_netlink_get_ifindex(const struct nlmsghdr *nlh, int attrtype)
}
/**
* batadv_netlink_mesh_info_put - fill in generic information about mesh
* batadv_netlink_mesh_info_put() - fill in generic information about mesh
* interface
* @msg: netlink message to be sent back
* @soft_iface: interface for which the data should be taken
@ -169,7 +170,7 @@ batadv_netlink_mesh_info_put(struct sk_buff *msg, struct net_device *soft_iface)
}
/**
* batadv_netlink_get_mesh_info - handle incoming BATADV_CMD_GET_MESH_INFO
* batadv_netlink_get_mesh_info() - handle incoming BATADV_CMD_GET_MESH_INFO
* netlink request
* @skb: received netlink message
* @info: receiver information
@ -230,7 +231,7 @@ batadv_netlink_get_mesh_info(struct sk_buff *skb, struct genl_info *info)
}
/**
* batadv_netlink_tp_meter_put - Fill information of started tp_meter session
* batadv_netlink_tp_meter_put() - Fill information of started tp_meter session
* @msg: netlink message to be sent back
* @cookie: tp meter session cookie
*
@ -246,7 +247,7 @@ batadv_netlink_tp_meter_put(struct sk_buff *msg, u32 cookie)
}
/**
* batadv_netlink_tpmeter_notify - send tp_meter result via netlink to client
* batadv_netlink_tpmeter_notify() - send tp_meter result via netlink to client
* @bat_priv: the bat priv with all the soft interface information
* @dst: destination of tp_meter session
* @result: reason for tp meter session stop
@ -309,7 +310,7 @@ err_genlmsg:
}
/**
* batadv_netlink_tp_meter_start - Start a new tp_meter session
* batadv_netlink_tp_meter_start() - Start a new tp_meter session
* @skb: received netlink message
* @info: receiver information
*
@ -386,7 +387,7 @@ batadv_netlink_tp_meter_start(struct sk_buff *skb, struct genl_info *info)
}
/**
* batadv_netlink_tp_meter_start - Cancel a running tp_meter session
* batadv_netlink_tp_meter_start() - Cancel a running tp_meter session
* @skb: received netlink message
* @info: receiver information
*
@ -431,7 +432,7 @@ out:
}
/**
* batadv_netlink_dump_hardif_entry - Dump one hard interface into a message
* batadv_netlink_dump_hardif_entry() - Dump one hard interface into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -473,7 +474,7 @@ batadv_netlink_dump_hardif_entry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_netlink_dump_hardifs - Dump all hard interface into a messages
* batadv_netlink_dump_hardifs() - Dump all hard interface into a messages
* @msg: Netlink message to dump into
* @cb: Parameters from query
*
@ -620,7 +621,7 @@ struct genl_family batadv_netlink_family __ro_after_init = {
};
/**
* batadv_netlink_register - register batadv genl netlink family
* batadv_netlink_register() - register batadv genl netlink family
*/
void __init batadv_netlink_register(void)
{
@ -632,7 +633,7 @@ void __init batadv_netlink_register(void)
}
/**
* batadv_netlink_unregister - unregister batadv genl netlink family
* batadv_netlink_unregister() - unregister batadv genl netlink family
*/
void batadv_netlink_unregister(void)
{

1
net/batman-adv/netlink.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2016-2017 B.A.T.M.A.N. contributors:
*
* Matthias Schiffer

124
net/batman-adv/network-coding.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2012-2017 B.A.T.M.A.N. contributors:
*
* Martin Hundebøll, Jeppe Ledet-Pedersen
@ -25,7 +26,7 @@
#include <linux/debugfs.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/if_packet.h>
#include <linux/init.h>
@ -35,6 +36,7 @@
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/net.h>
#include <linux/netdevice.h>
#include <linux/printk.h>
#include <linux/random.h>
@ -65,7 +67,7 @@ static int batadv_nc_recv_coded_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
/**
* batadv_nc_init - one-time initialization for network coding
* batadv_nc_init() - one-time initialization for network coding
*
* Return: 0 on success or negative error number in case of failure
*/
@ -81,7 +83,7 @@ int __init batadv_nc_init(void)
}
/**
* batadv_nc_start_timer - initialise the nc periodic worker
* batadv_nc_start_timer() - initialise the nc periodic worker
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_nc_start_timer(struct batadv_priv *bat_priv)
@ -91,7 +93,7 @@ static void batadv_nc_start_timer(struct batadv_priv *bat_priv)
}
/**
* batadv_nc_tvlv_container_update - update the network coding tvlv container
* batadv_nc_tvlv_container_update() - update the network coding tvlv container
* after network coding setting change
* @bat_priv: the bat priv with all the soft interface information
*/
@ -113,7 +115,7 @@ static void batadv_nc_tvlv_container_update(struct batadv_priv *bat_priv)
}
/**
* batadv_nc_status_update - update the network coding tvlv container after
* batadv_nc_status_update() - update the network coding tvlv container after
* network coding setting change
* @net_dev: the soft interface net device
*/
@ -125,7 +127,7 @@ void batadv_nc_status_update(struct net_device *net_dev)
}
/**
* batadv_nc_tvlv_ogm_handler_v1 - process incoming nc tvlv container
* batadv_nc_tvlv_ogm_handler_v1() - process incoming nc tvlv container
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node of the ogm
* @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
@ -144,7 +146,7 @@ static void batadv_nc_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_mesh_init - initialise coding hash table and start house keeping
* batadv_nc_mesh_init() - initialise coding hash table and start house keeping
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 on success or negative error number in case of failure
@ -185,7 +187,7 @@ err:
}
/**
* batadv_nc_init_bat_priv - initialise the nc specific bat_priv variables
* batadv_nc_init_bat_priv() - initialise the nc specific bat_priv variables
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
@ -197,7 +199,7 @@ void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
}
/**
* batadv_nc_init_orig - initialise the nc fields of an orig_node
* batadv_nc_init_orig() - initialise the nc fields of an orig_node
* @orig_node: the orig_node which is going to be initialised
*/
void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
@ -209,8 +211,8 @@ void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
}
/**
* batadv_nc_node_release - release nc_node from lists and queue for free after
* rcu grace period
* batadv_nc_node_release() - release nc_node from lists and queue for free
* after rcu grace period
* @ref: kref pointer of the nc_node
*/
static void batadv_nc_node_release(struct kref *ref)
@ -224,7 +226,7 @@ static void batadv_nc_node_release(struct kref *ref)
}
/**
* batadv_nc_node_put - decrement the nc_node refcounter and possibly
* batadv_nc_node_put() - decrement the nc_node refcounter and possibly
* release it
* @nc_node: nc_node to be free'd
*/
@ -234,8 +236,8 @@ static void batadv_nc_node_put(struct batadv_nc_node *nc_node)
}
/**
* batadv_nc_path_release - release nc_path from lists and queue for free after
* rcu grace period
* batadv_nc_path_release() - release nc_path from lists and queue for free
* after rcu grace period
* @ref: kref pointer of the nc_path
*/
static void batadv_nc_path_release(struct kref *ref)
@ -248,7 +250,7 @@ static void batadv_nc_path_release(struct kref *ref)
}
/**
* batadv_nc_path_put - decrement the nc_path refcounter and possibly
* batadv_nc_path_put() - decrement the nc_path refcounter and possibly
* release it
* @nc_path: nc_path to be free'd
*/
@ -258,7 +260,7 @@ static void batadv_nc_path_put(struct batadv_nc_path *nc_path)
}
/**
* batadv_nc_packet_free - frees nc packet
* batadv_nc_packet_free() - frees nc packet
* @nc_packet: the nc packet to free
* @dropped: whether the packet is freed because is is dropped
*/
@ -275,7 +277,7 @@ static void batadv_nc_packet_free(struct batadv_nc_packet *nc_packet,
}
/**
* batadv_nc_to_purge_nc_node - checks whether an nc node has to be purged
* batadv_nc_to_purge_nc_node() - checks whether an nc node has to be purged
* @bat_priv: the bat priv with all the soft interface information
* @nc_node: the nc node to check
*
@ -291,7 +293,7 @@ static bool batadv_nc_to_purge_nc_node(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_to_purge_nc_path_coding - checks whether an nc path has timed out
* batadv_nc_to_purge_nc_path_coding() - checks whether an nc path has timed out
* @bat_priv: the bat priv with all the soft interface information
* @nc_path: the nc path to check
*
@ -311,7 +313,8 @@ static bool batadv_nc_to_purge_nc_path_coding(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_to_purge_nc_path_decoding - checks whether an nc path has timed out
* batadv_nc_to_purge_nc_path_decoding() - checks whether an nc path has timed
* out
* @bat_priv: the bat priv with all the soft interface information
* @nc_path: the nc path to check
*
@ -331,7 +334,7 @@ static bool batadv_nc_to_purge_nc_path_decoding(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_purge_orig_nc_nodes - go through list of nc nodes and purge stale
* batadv_nc_purge_orig_nc_nodes() - go through list of nc nodes and purge stale
* entries
* @bat_priv: the bat priv with all the soft interface information
* @list: list of nc nodes
@ -369,7 +372,7 @@ batadv_nc_purge_orig_nc_nodes(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_purge_orig - purges all nc node data attached of the given
* batadv_nc_purge_orig() - purges all nc node data attached of the given
* originator
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig_node with the nc node entries to be purged
@ -395,8 +398,8 @@ void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_purge_orig_hash - traverse entire originator hash to check if they
* have timed out nc nodes
* batadv_nc_purge_orig_hash() - traverse entire originator hash to check if
* they have timed out nc nodes
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_nc_purge_orig_hash(struct batadv_priv *bat_priv)
@ -422,7 +425,7 @@ static void batadv_nc_purge_orig_hash(struct batadv_priv *bat_priv)
}
/**
* batadv_nc_purge_paths - traverse all nc paths part of the hash and remove
* batadv_nc_purge_paths() - traverse all nc paths part of the hash and remove
* unused ones
* @bat_priv: the bat priv with all the soft interface information
* @hash: hash table containing the nc paths to check
@ -481,7 +484,7 @@ static void batadv_nc_purge_paths(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_hash_key_gen - computes the nc_path hash key
* batadv_nc_hash_key_gen() - computes the nc_path hash key
* @key: buffer to hold the final hash key
* @src: source ethernet mac address going into the hash key
* @dst: destination ethernet mac address going into the hash key
@ -494,7 +497,7 @@ static void batadv_nc_hash_key_gen(struct batadv_nc_path *key, const char *src,
}
/**
* batadv_nc_hash_choose - compute the hash value for an nc path
* batadv_nc_hash_choose() - compute the hash value for an nc path
* @data: data to hash
* @size: size of the hash table
*
@ -512,7 +515,7 @@ static u32 batadv_nc_hash_choose(const void *data, u32 size)
}
/**
* batadv_nc_hash_compare - comparing function used in the network coding hash
* batadv_nc_hash_compare() - comparing function used in the network coding hash
* tables
* @node: node in the local table
* @data2: second object to compare the node to
@ -538,7 +541,7 @@ static bool batadv_nc_hash_compare(const struct hlist_node *node,
}
/**
* batadv_nc_hash_find - search for an existing nc path and return it
* batadv_nc_hash_find() - search for an existing nc path and return it
* @hash: hash table containing the nc path
* @data: search key
*
@ -575,7 +578,7 @@ batadv_nc_hash_find(struct batadv_hashtable *hash,
}
/**
* batadv_nc_send_packet - send non-coded packet and free nc_packet struct
* batadv_nc_send_packet() - send non-coded packet and free nc_packet struct
* @nc_packet: the nc packet to send
*/
static void batadv_nc_send_packet(struct batadv_nc_packet *nc_packet)
@ -586,7 +589,7 @@ static void batadv_nc_send_packet(struct batadv_nc_packet *nc_packet)
}
/**
* batadv_nc_sniffed_purge - Checks timestamp of given sniffed nc_packet.
* batadv_nc_sniffed_purge() - Checks timestamp of given sniffed nc_packet.
* @bat_priv: the bat priv with all the soft interface information
* @nc_path: the nc path the packet belongs to
* @nc_packet: the nc packet to be checked
@ -625,7 +628,7 @@ out:
}
/**
* batadv_nc_fwd_flush - Checks the timestamp of the given nc packet.
* batadv_nc_fwd_flush() - Checks the timestamp of the given nc packet.
* @bat_priv: the bat priv with all the soft interface information
* @nc_path: the nc path the packet belongs to
* @nc_packet: the nc packet to be checked
@ -663,8 +666,8 @@ static bool batadv_nc_fwd_flush(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_process_nc_paths - traverse given nc packet pool and free timed out
* nc packets
* batadv_nc_process_nc_paths() - traverse given nc packet pool and free timed
* out nc packets
* @bat_priv: the bat priv with all the soft interface information
* @hash: to be processed hash table
* @process_fn: Function called to process given nc packet. Should return true
@ -709,7 +712,8 @@ batadv_nc_process_nc_paths(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_worker - periodic task for house keeping related to network coding
* batadv_nc_worker() - periodic task for house keeping related to network
* coding
* @work: kernel work struct
*/
static void batadv_nc_worker(struct work_struct *work)
@ -749,8 +753,8 @@ static void batadv_nc_worker(struct work_struct *work)
}
/**
* batadv_can_nc_with_orig - checks whether the given orig node is suitable for
* coding or not
* batadv_can_nc_with_orig() - checks whether the given orig node is suitable
* for coding or not
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: neighboring orig node which may be used as nc candidate
* @ogm_packet: incoming ogm packet also used for the checks
@ -790,7 +794,7 @@ static bool batadv_can_nc_with_orig(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_find_nc_node - search for an existing nc node and return it
* batadv_nc_find_nc_node() - search for an existing nc node and return it
* @orig_node: orig node originating the ogm packet
* @orig_neigh_node: neighboring orig node from which we received the ogm packet
* (can be equal to orig_node)
@ -830,7 +834,7 @@ batadv_nc_find_nc_node(struct batadv_orig_node *orig_node,
}
/**
* batadv_nc_get_nc_node - retrieves an nc node or creates the entry if it was
* batadv_nc_get_nc_node() - retrieves an nc node or creates the entry if it was
* not found
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node originating the ogm packet
@ -890,7 +894,7 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_update_nc_node - updates stored incoming and outgoing nc node
* batadv_nc_update_nc_node() - updates stored incoming and outgoing nc node
* structs (best called on incoming OGMs)
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node originating the ogm packet
@ -945,7 +949,7 @@ out:
}
/**
* batadv_nc_get_path - get existing nc_path or allocate a new one
* batadv_nc_get_path() - get existing nc_path or allocate a new one
* @bat_priv: the bat priv with all the soft interface information
* @hash: hash table containing the nc path
* @src: ethernet source address - first half of the nc path search key
@ -1006,7 +1010,7 @@ static struct batadv_nc_path *batadv_nc_get_path(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_random_weight_tq - scale the receivers TQ-value to avoid unfair
* batadv_nc_random_weight_tq() - scale the receivers TQ-value to avoid unfair
* selection of a receiver with slightly lower TQ than the other
* @tq: to be weighted tq value
*
@ -1029,7 +1033,7 @@ static u8 batadv_nc_random_weight_tq(u8 tq)
}
/**
* batadv_nc_memxor - XOR destination with source
* batadv_nc_memxor() - XOR destination with source
* @dst: byte array to XOR into
* @src: byte array to XOR from
* @len: length of destination array
@ -1043,7 +1047,7 @@ static void batadv_nc_memxor(char *dst, const char *src, unsigned int len)
}
/**
* batadv_nc_code_packets - code a received unicast_packet with an nc packet
* batadv_nc_code_packets() - code a received unicast_packet with an nc packet
* into a coded_packet and send it
* @bat_priv: the bat priv with all the soft interface information
* @skb: data skb to forward
@ -1236,7 +1240,7 @@ out:
}
/**
* batadv_nc_skb_coding_possible - true if a decoded skb is available at dst.
* batadv_nc_skb_coding_possible() - true if a decoded skb is available at dst.
* @skb: data skb to forward
* @dst: destination mac address of the other skb to code with
* @src: source mac address of skb
@ -1260,7 +1264,7 @@ static bool batadv_nc_skb_coding_possible(struct sk_buff *skb, u8 *dst, u8 *src)
}
/**
* batadv_nc_path_search - Find the coding path matching in_nc_node and
* batadv_nc_path_search() - Find the coding path matching in_nc_node and
* out_nc_node to retrieve a buffered packet that can be used for coding.
* @bat_priv: the bat priv with all the soft interface information
* @in_nc_node: pointer to skb next hop's neighbor nc node
@ -1328,8 +1332,8 @@ batadv_nc_path_search(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_skb_src_search - Loops through the list of neighoring nodes of the
* skb's sender (may be equal to the originator).
* batadv_nc_skb_src_search() - Loops through the list of neighoring nodes of
* the skb's sender (may be equal to the originator).
* @bat_priv: the bat priv with all the soft interface information
* @skb: data skb to forward
* @eth_dst: next hop mac address of skb
@ -1374,7 +1378,7 @@ batadv_nc_skb_src_search(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_skb_store_before_coding - set the ethernet src and dst of the
* batadv_nc_skb_store_before_coding() - set the ethernet src and dst of the
* unicast skb before it is stored for use in later decoding
* @bat_priv: the bat priv with all the soft interface information
* @skb: data skb to store
@ -1409,7 +1413,7 @@ static void batadv_nc_skb_store_before_coding(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_skb_dst_search - Loops through list of neighboring nodes to dst.
* batadv_nc_skb_dst_search() - Loops through list of neighboring nodes to dst.
* @skb: data skb to forward
* @neigh_node: next hop to forward packet to
* @ethhdr: pointer to the ethernet header inside the skb
@ -1467,7 +1471,7 @@ static bool batadv_nc_skb_dst_search(struct sk_buff *skb,
}
/**
* batadv_nc_skb_add_to_path - buffer skb for later encoding / decoding
* batadv_nc_skb_add_to_path() - buffer skb for later encoding / decoding
* @skb: skb to add to path
* @nc_path: path to add skb to
* @neigh_node: next hop to forward packet to
@ -1502,7 +1506,7 @@ static bool batadv_nc_skb_add_to_path(struct sk_buff *skb,
}
/**
* batadv_nc_skb_forward - try to code a packet or add it to the coding packet
* batadv_nc_skb_forward() - try to code a packet or add it to the coding packet
* buffer
* @skb: data skb to forward
* @neigh_node: next hop to forward packet to
@ -1559,8 +1563,8 @@ out:
}
/**
* batadv_nc_skb_store_for_decoding - save a clone of the skb which can be used
* when decoding coded packets
* batadv_nc_skb_store_for_decoding() - save a clone of the skb which can be
* used when decoding coded packets
* @bat_priv: the bat priv with all the soft interface information
* @skb: data skb to store
*/
@ -1620,7 +1624,7 @@ out:
}
/**
* batadv_nc_skb_store_sniffed_unicast - check if a received unicast packet
* batadv_nc_skb_store_sniffed_unicast() - check if a received unicast packet
* should be saved in the decoding buffer and, if so, store it there
* @bat_priv: the bat priv with all the soft interface information
* @skb: unicast skb to store
@ -1640,7 +1644,7 @@ void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_skb_decode_packet - decode given skb using the decode data stored
* batadv_nc_skb_decode_packet() - decode given skb using the decode data stored
* in nc_packet
* @bat_priv: the bat priv with all the soft interface information
* @skb: unicast skb to decode
@ -1734,7 +1738,7 @@ batadv_nc_skb_decode_packet(struct batadv_priv *bat_priv, struct sk_buff *skb,
}
/**
* batadv_nc_find_decoding_packet - search through buffered decoding data to
* batadv_nc_find_decoding_packet() - search through buffered decoding data to
* find the data needed to decode the coded packet
* @bat_priv: the bat priv with all the soft interface information
* @ethhdr: pointer to the ethernet header inside the coded packet
@ -1799,7 +1803,7 @@ batadv_nc_find_decoding_packet(struct batadv_priv *bat_priv,
}
/**
* batadv_nc_recv_coded_packet - try to decode coded packet and enqueue the
* batadv_nc_recv_coded_packet() - try to decode coded packet and enqueue the
* resulting unicast packet
* @skb: incoming coded packet
* @recv_if: pointer to interface this packet was received on
@ -1874,7 +1878,7 @@ free_skb:
}
/**
* batadv_nc_mesh_free - clean up network coding memory
* batadv_nc_mesh_free() - clean up network coding memory
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
@ -1891,7 +1895,7 @@ void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_nc_nodes_seq_print_text - print the nc node information
* batadv_nc_nodes_seq_print_text() - print the nc node information
* @seq: seq file to print on
* @offset: not used
*
@ -1954,7 +1958,7 @@ out:
}
/**
* batadv_nc_init_debugfs - create nc folder and related files in debugfs
* batadv_nc_init_debugfs() - create nc folder and related files in debugfs
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 on success or negative error number in case of failure

1
net/batman-adv/network-coding.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2012-2017 B.A.T.M.A.N. contributors:
*
* Martin Hundebøll, Jeppe Ledet-Pedersen

154
net/batman-adv/originator.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2009-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -21,7 +22,7 @@
#include <linux/atomic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/kref.h>
@ -30,10 +31,12 @@
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/seq_file.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/stddef.h>
#include <linux/workqueue.h>
#include <net/sock.h>
#include <uapi/linux/batman_adv.h>
@ -55,10 +58,47 @@
/* hash class keys */
static struct lock_class_key batadv_orig_hash_lock_class_key;
/**
* batadv_orig_hash_find() - Find and return originator from orig_hash
* @bat_priv: the bat priv with all the soft interface information
* @data: mac address of the originator
*
* Return: orig_node (with increased refcnt), NULL on errors
*/
struct batadv_orig_node *
batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data)
{
struct batadv_hashtable *hash = bat_priv->orig_hash;
struct hlist_head *head;
struct batadv_orig_node *orig_node, *orig_node_tmp = NULL;
int index;
if (!hash)
return NULL;
index = batadv_choose_orig(data, hash->size);
head = &hash->table[index];
rcu_read_lock();
hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
if (!batadv_compare_eth(orig_node, data))
continue;
if (!kref_get_unless_zero(&orig_node->refcount))
continue;
orig_node_tmp = orig_node;
break;
}
rcu_read_unlock();
return orig_node_tmp;
}
static void batadv_purge_orig(struct work_struct *work);
/**
* batadv_compare_orig - comparing function used in the originator hash table
* batadv_compare_orig() - comparing function used in the originator hash table
* @node: node in the local table
* @data2: second object to compare the node to
*
@ -73,7 +113,7 @@ bool batadv_compare_orig(const struct hlist_node *node, const void *data2)
}
/**
* batadv_orig_node_vlan_get - get an orig_node_vlan object
* batadv_orig_node_vlan_get() - get an orig_node_vlan object
* @orig_node: the originator serving the VLAN
* @vid: the VLAN identifier
*
@ -104,7 +144,7 @@ batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node,
}
/**
* batadv_orig_node_vlan_new - search and possibly create an orig_node_vlan
* batadv_orig_node_vlan_new() - search and possibly create an orig_node_vlan
* object
* @orig_node: the originator serving the VLAN
* @vid: the VLAN identifier
@ -145,7 +185,7 @@ out:
}
/**
* batadv_orig_node_vlan_release - release originator-vlan object from lists
* batadv_orig_node_vlan_release() - release originator-vlan object from lists
* and queue for free after rcu grace period
* @ref: kref pointer of the originator-vlan object
*/
@ -159,7 +199,7 @@ static void batadv_orig_node_vlan_release(struct kref *ref)
}
/**
* batadv_orig_node_vlan_put - decrement the refcounter and possibly release
* batadv_orig_node_vlan_put() - decrement the refcounter and possibly release
* the originator-vlan object
* @orig_vlan: the originator-vlan object to release
*/
@ -168,6 +208,12 @@ void batadv_orig_node_vlan_put(struct batadv_orig_node_vlan *orig_vlan)
kref_put(&orig_vlan->refcount, batadv_orig_node_vlan_release);
}
/**
* batadv_originator_init() - Initialize all originator structures
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_originator_init(struct batadv_priv *bat_priv)
{
if (bat_priv->orig_hash)
@ -193,7 +239,7 @@ err:
}
/**
* batadv_neigh_ifinfo_release - release neigh_ifinfo from lists and queue for
* batadv_neigh_ifinfo_release() - release neigh_ifinfo from lists and queue for
* free after rcu grace period
* @ref: kref pointer of the neigh_ifinfo
*/
@ -210,7 +256,7 @@ static void batadv_neigh_ifinfo_release(struct kref *ref)
}
/**
* batadv_neigh_ifinfo_put - decrement the refcounter and possibly release
* batadv_neigh_ifinfo_put() - decrement the refcounter and possibly release
* the neigh_ifinfo
* @neigh_ifinfo: the neigh_ifinfo object to release
*/
@ -220,7 +266,7 @@ void batadv_neigh_ifinfo_put(struct batadv_neigh_ifinfo *neigh_ifinfo)
}
/**
* batadv_hardif_neigh_release - release hardif neigh node from lists and
* batadv_hardif_neigh_release() - release hardif neigh node from lists and
* queue for free after rcu grace period
* @ref: kref pointer of the neigh_node
*/
@ -240,7 +286,7 @@ static void batadv_hardif_neigh_release(struct kref *ref)
}
/**
* batadv_hardif_neigh_put - decrement the hardif neighbors refcounter
* batadv_hardif_neigh_put() - decrement the hardif neighbors refcounter
* and possibly release it
* @hardif_neigh: hardif neigh neighbor to free
*/
@ -250,7 +296,7 @@ void batadv_hardif_neigh_put(struct batadv_hardif_neigh_node *hardif_neigh)
}
/**
* batadv_neigh_node_release - release neigh_node from lists and queue for
* batadv_neigh_node_release() - release neigh_node from lists and queue for
* free after rcu grace period
* @ref: kref pointer of the neigh_node
*/
@ -275,7 +321,7 @@ static void batadv_neigh_node_release(struct kref *ref)
}
/**
* batadv_neigh_node_put - decrement the neighbors refcounter and possibly
* batadv_neigh_node_put() - decrement the neighbors refcounter and possibly
* release it
* @neigh_node: neigh neighbor to free
*/
@ -285,7 +331,7 @@ void batadv_neigh_node_put(struct batadv_neigh_node *neigh_node)
}
/**
* batadv_orig_router_get - router to the originator depending on iface
* batadv_orig_router_get() - router to the originator depending on iface
* @orig_node: the orig node for the router
* @if_outgoing: the interface where the payload packet has been received or
* the OGM should be sent to
@ -318,7 +364,7 @@ batadv_orig_router_get(struct batadv_orig_node *orig_node,
}
/**
* batadv_orig_ifinfo_get - find the ifinfo from an orig_node
* batadv_orig_ifinfo_get() - find the ifinfo from an orig_node
* @orig_node: the orig node to be queried
* @if_outgoing: the interface for which the ifinfo should be acquired
*
@ -350,7 +396,7 @@ batadv_orig_ifinfo_get(struct batadv_orig_node *orig_node,
}
/**
* batadv_orig_ifinfo_new - search and possibly create an orig_ifinfo object
* batadv_orig_ifinfo_new() - search and possibly create an orig_ifinfo object
* @orig_node: the orig node to be queried
* @if_outgoing: the interface for which the ifinfo should be acquired
*
@ -396,7 +442,7 @@ out:
}
/**
* batadv_neigh_ifinfo_get - find the ifinfo from an neigh_node
* batadv_neigh_ifinfo_get() - find the ifinfo from an neigh_node
* @neigh: the neigh node to be queried
* @if_outgoing: the interface for which the ifinfo should be acquired
*
@ -429,7 +475,7 @@ batadv_neigh_ifinfo_get(struct batadv_neigh_node *neigh,
}
/**
* batadv_neigh_ifinfo_new - search and possibly create an neigh_ifinfo object
* batadv_neigh_ifinfo_new() - search and possibly create an neigh_ifinfo object
* @neigh: the neigh node to be queried
* @if_outgoing: the interface for which the ifinfo should be acquired
*
@ -472,7 +518,7 @@ out:
}
/**
* batadv_neigh_node_get - retrieve a neighbour from the list
* batadv_neigh_node_get() - retrieve a neighbour from the list
* @orig_node: originator which the neighbour belongs to
* @hard_iface: the interface where this neighbour is connected to
* @addr: the address of the neighbour
@ -509,7 +555,7 @@ batadv_neigh_node_get(const struct batadv_orig_node *orig_node,
}
/**
* batadv_hardif_neigh_create - create a hardif neighbour node
* batadv_hardif_neigh_create() - create a hardif neighbour node
* @hard_iface: the interface this neighbour is connected to
* @neigh_addr: the interface address of the neighbour to retrieve
* @orig_node: originator object representing the neighbour
@ -555,7 +601,7 @@ out:
}
/**
* batadv_hardif_neigh_get_or_create - retrieve or create a hardif neighbour
* batadv_hardif_neigh_get_or_create() - retrieve or create a hardif neighbour
* node
* @hard_iface: the interface this neighbour is connected to
* @neigh_addr: the interface address of the neighbour to retrieve
@ -579,7 +625,7 @@ batadv_hardif_neigh_get_or_create(struct batadv_hard_iface *hard_iface,
}
/**
* batadv_hardif_neigh_get - retrieve a hardif neighbour from the list
* batadv_hardif_neigh_get() - retrieve a hardif neighbour from the list
* @hard_iface: the interface where this neighbour is connected to
* @neigh_addr: the address of the neighbour
*
@ -611,7 +657,7 @@ batadv_hardif_neigh_get(const struct batadv_hard_iface *hard_iface,
}
/**
* batadv_neigh_node_create - create a neigh node object
* batadv_neigh_node_create() - create a neigh node object
* @orig_node: originator object representing the neighbour
* @hard_iface: the interface where the neighbour is connected to
* @neigh_addr: the mac address of the neighbour interface
@ -676,7 +722,7 @@ out:
}
/**
* batadv_neigh_node_get_or_create - retrieve or create a neigh node object
* batadv_neigh_node_get_or_create() - retrieve or create a neigh node object
* @orig_node: originator object representing the neighbour
* @hard_iface: the interface where the neighbour is connected to
* @neigh_addr: the mac address of the neighbour interface
@ -700,7 +746,7 @@ batadv_neigh_node_get_or_create(struct batadv_orig_node *orig_node,
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_hardif_neigh_seq_print_text - print the single hop neighbour list
* batadv_hardif_neigh_seq_print_text() - print the single hop neighbour list
* @seq: neighbour table seq_file struct
* @offset: not used
*
@ -735,8 +781,8 @@ int batadv_hardif_neigh_seq_print_text(struct seq_file *seq, void *offset)
#endif
/**
* batadv_hardif_neigh_dump - Dump to netlink the neighbor infos for a specific
* outgoing interface
* batadv_hardif_neigh_dump() - Dump to netlink the neighbor infos for a
* specific outgoing interface
* @msg: message to dump into
* @cb: parameters for the dump
*
@ -812,7 +858,7 @@ int batadv_hardif_neigh_dump(struct sk_buff *msg, struct netlink_callback *cb)
}
/**
* batadv_orig_ifinfo_release - release orig_ifinfo from lists and queue for
* batadv_orig_ifinfo_release() - release orig_ifinfo from lists and queue for
* free after rcu grace period
* @ref: kref pointer of the orig_ifinfo
*/
@ -835,7 +881,7 @@ static void batadv_orig_ifinfo_release(struct kref *ref)
}
/**
* batadv_orig_ifinfo_put - decrement the refcounter and possibly release
* batadv_orig_ifinfo_put() - decrement the refcounter and possibly release
* the orig_ifinfo
* @orig_ifinfo: the orig_ifinfo object to release
*/
@ -845,7 +891,7 @@ void batadv_orig_ifinfo_put(struct batadv_orig_ifinfo *orig_ifinfo)
}
/**
* batadv_orig_node_free_rcu - free the orig_node
* batadv_orig_node_free_rcu() - free the orig_node
* @rcu: rcu pointer of the orig_node
*/
static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
@ -866,7 +912,7 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
}
/**
* batadv_orig_node_release - release orig_node from lists and queue for
* batadv_orig_node_release() - release orig_node from lists and queue for
* free after rcu grace period
* @ref: kref pointer of the orig_node
*/
@ -917,7 +963,7 @@ static void batadv_orig_node_release(struct kref *ref)
}
/**
* batadv_orig_node_put - decrement the orig node refcounter and possibly
* batadv_orig_node_put() - decrement the orig node refcounter and possibly
* release it
* @orig_node: the orig node to free
*/
@ -926,6 +972,10 @@ void batadv_orig_node_put(struct batadv_orig_node *orig_node)
kref_put(&orig_node->refcount, batadv_orig_node_release);
}
/**
* batadv_originator_free() - Free all originator structures
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_originator_free(struct batadv_priv *bat_priv)
{
struct batadv_hashtable *hash = bat_priv->orig_hash;
@ -959,7 +1009,7 @@ void batadv_originator_free(struct batadv_priv *bat_priv)
}
/**
* batadv_orig_node_new - creates a new orig_node
* batadv_orig_node_new() - creates a new orig_node
* @bat_priv: the bat priv with all the soft interface information
* @addr: the mac address of the originator
*
@ -1038,7 +1088,7 @@ free_orig_node:
}
/**
* batadv_purge_neigh_ifinfo - purge obsolete ifinfo entries from neighbor
* batadv_purge_neigh_ifinfo() - purge obsolete ifinfo entries from neighbor
* @bat_priv: the bat priv with all the soft interface information
* @neigh: orig node which is to be checked
*/
@ -1079,7 +1129,7 @@ batadv_purge_neigh_ifinfo(struct batadv_priv *bat_priv,
}
/**
* batadv_purge_orig_ifinfo - purge obsolete ifinfo entries from originator
* batadv_purge_orig_ifinfo() - purge obsolete ifinfo entries from originator
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which is to be checked
*
@ -1131,7 +1181,7 @@ batadv_purge_orig_ifinfo(struct batadv_priv *bat_priv,
}
/**
* batadv_purge_orig_neighbors - purges neighbors from originator
* batadv_purge_orig_neighbors() - purges neighbors from originator
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which is to be checked
*
@ -1189,7 +1239,7 @@ batadv_purge_orig_neighbors(struct batadv_priv *bat_priv,
}
/**
* batadv_find_best_neighbor - finds the best neighbor after purging
* batadv_find_best_neighbor() - finds the best neighbor after purging
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which is to be checked
* @if_outgoing: the interface for which the metric should be compared
@ -1224,7 +1274,7 @@ batadv_find_best_neighbor(struct batadv_priv *bat_priv,
}
/**
* batadv_purge_orig_node - purges obsolete information from an orig_node
* batadv_purge_orig_node() - purges obsolete information from an orig_node
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which is to be checked
*
@ -1341,12 +1391,24 @@ static void batadv_purge_orig(struct work_struct *work)
msecs_to_jiffies(BATADV_ORIG_WORK_PERIOD));
}
/**
* batadv_purge_orig_ref() - Purge all outdated originators
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_purge_orig_ref(struct batadv_priv *bat_priv)
{
_batadv_purge_orig(bat_priv);
}
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_orig_seq_print_text() - Print the originator table in a seq file
* @seq: seq file to print on
* @offset: not used
*
* Return: always 0
*/
int batadv_orig_seq_print_text(struct seq_file *seq, void *offset)
{
struct net_device *net_dev = (struct net_device *)seq->private;
@ -1376,7 +1438,7 @@ int batadv_orig_seq_print_text(struct seq_file *seq, void *offset)
}
/**
* batadv_orig_hardif_seq_print_text - writes originator infos for a specific
* batadv_orig_hardif_seq_print_text() - writes originator infos for a specific
* outgoing interface
* @seq: debugfs table seq_file struct
* @offset: not used
@ -1423,7 +1485,7 @@ out:
#endif
/**
* batadv_orig_dump - Dump to netlink the originator infos for a specific
* batadv_orig_dump() - Dump to netlink the originator infos for a specific
* outgoing interface
* @msg: message to dump into
* @cb: parameters for the dump
@ -1499,6 +1561,13 @@ int batadv_orig_dump(struct sk_buff *msg, struct netlink_callback *cb)
return ret;
}
/**
* batadv_orig_hash_add_if() - Add interface to originators in orig_hash
* @hard_iface: hard interface to add (already slave of the soft interface)
* @max_if_num: new number of interfaces
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
int max_if_num)
{
@ -1534,6 +1603,13 @@ err:
return -ENOMEM;
}
/**
* batadv_orig_hash_del_if() - Remove interface from originators in orig_hash
* @hard_iface: hard interface to remove (still slave of the soft interface)
* @max_if_num: new number of interfaces
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface,
int max_if_num)
{

47
net/batman-adv/originator.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -23,14 +24,8 @@
#include <linux/compiler.h>
#include <linux/if_ether.h>
#include <linux/jhash.h>
#include <linux/kref.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/stddef.h>
#include <linux/types.h>
#include "hash.h"
struct netlink_callback;
struct seq_file;
struct sk_buff;
@ -89,8 +84,13 @@ batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node,
unsigned short vid);
void batadv_orig_node_vlan_put(struct batadv_orig_node_vlan *orig_vlan);
/* hashfunction to choose an entry in a hash table of given size
* hash algorithm from http://en.wikipedia.org/wiki/Hash_table
/**
* batadv_choose_orig() - Return the index of the orig entry in the hash table
* @data: mac address of the originator node
* @size: the size of the hash table
*
* Return: the hash index where the object represented by @data should be
* stored at.
*/
static inline u32 batadv_choose_orig(const void *data, u32 size)
{
@ -100,34 +100,7 @@ static inline u32 batadv_choose_orig(const void *data, u32 size)
return hash % size;
}
static inline struct batadv_orig_node *
batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data)
{
struct batadv_hashtable *hash = bat_priv->orig_hash;
struct hlist_head *head;
struct batadv_orig_node *orig_node, *orig_node_tmp = NULL;
int index;
if (!hash)
return NULL;
index = batadv_choose_orig(data, hash->size);
head = &hash->table[index];
rcu_read_lock();
hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
if (!batadv_compare_eth(orig_node, data))
continue;
if (!kref_get_unless_zero(&orig_node->refcount))
continue;
orig_node_tmp = orig_node;
break;
}
rcu_read_unlock();
return orig_node_tmp;
}
struct batadv_orig_node *
batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data);
#endif /* _NET_BATMAN_ADV_ORIGINATOR_H_ */

26
net/batman-adv/packet.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -21,6 +22,12 @@
#include <asm/byteorder.h>
#include <linux/types.h>
/**
* batadv_tp_is_error() - Check throughput meter return code for error
* @n: throughput meter return code
*
* Return: 0 when not error was detected, != 0 otherwise
*/
#define batadv_tp_is_error(n) ((u8)(n) > 127 ? 1 : 0)
/**
@ -88,7 +95,15 @@ enum batadv_iv_flags {
BATADV_DIRECTLINK = BIT(2),
};
/* ICMP message types */
/**
* enum batadv_icmp_packettype - ICMP message types
* @BATADV_ECHO_REPLY: success reply to BATADV_ECHO_REQUEST
* @BATADV_DESTINATION_UNREACHABLE: failure when route to destination not found
* @BATADV_ECHO_REQUEST: request BATADV_ECHO_REPLY from destination
* @BATADV_TTL_EXCEEDED: error after BATADV_ECHO_REQUEST traversed too many hops
* @BATADV_PARAMETER_PROBLEM: return code for malformed messages
* @BATADV_TP: throughput meter packet
*/
enum batadv_icmp_packettype {
BATADV_ECHO_REPLY = 0,
BATADV_DESTINATION_UNREACHABLE = 3,
@ -136,7 +151,14 @@ enum batadv_vlan_flags {
BATADV_VLAN_HAS_TAG = BIT(15),
};
/* claim frame types for the bridge loop avoidance */
/**
* enum batadv_bla_claimframe - claim frame types for the bridge loop avoidance
* @BATADV_CLAIM_TYPE_CLAIM: claim of a client mac address
* @BATADV_CLAIM_TYPE_UNCLAIM: unclaim of a client mac address
* @BATADV_CLAIM_TYPE_ANNOUNCE: announcement of backbone with current crc
* @BATADV_CLAIM_TYPE_REQUEST: request of full claim table
* @BATADV_CLAIM_TYPE_LOOPDETECT: mesh-traversing loop detect packet
*/
enum batadv_bla_claimframe {
BATADV_CLAIM_TYPE_CLAIM = 0x00,
BATADV_CLAIM_TYPE_UNCLAIM = 0x01,

54
net/batman-adv/routing.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -54,7 +55,7 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
/**
* _batadv_update_route - set the router for this originator
* _batadv_update_route() - set the router for this originator
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which is to be configured
* @recv_if: the receive interface for which this route is set
@ -118,7 +119,7 @@ static void _batadv_update_route(struct batadv_priv *bat_priv,
}
/**
* batadv_update_route - set the router for this originator
* batadv_update_route() - set the router for this originator
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which is to be configured
* @recv_if: the receive interface for which this route is set
@ -145,7 +146,7 @@ out:
}
/**
* batadv_window_protected - checks whether the host restarted and is in the
* batadv_window_protected() - checks whether the host restarted and is in the
* protection time.
* @bat_priv: the bat priv with all the soft interface information
* @seq_num_diff: difference between the current/received sequence number and
@ -180,6 +181,14 @@ bool batadv_window_protected(struct batadv_priv *bat_priv, s32 seq_num_diff,
return false;
}
/**
* batadv_check_management_packet() - Check preconditions for management packets
* @skb: incoming packet buffer
* @hard_iface: incoming hard interface
* @header_len: minimal header length of packet type
*
* Return: true when management preconditions are met, false otherwise
*/
bool batadv_check_management_packet(struct sk_buff *skb,
struct batadv_hard_iface *hard_iface,
int header_len)
@ -212,7 +221,7 @@ bool batadv_check_management_packet(struct sk_buff *skb,
}
/**
* batadv_recv_my_icmp_packet - receive an icmp packet locally
* batadv_recv_my_icmp_packet() - receive an icmp packet locally
* @bat_priv: the bat priv with all the soft interface information
* @skb: icmp packet to process
*
@ -347,6 +356,13 @@ out:
return ret;
}
/**
* batadv_recv_icmp_packet() - Process incoming icmp packet
* @skb: incoming packet buffer
* @recv_if: incoming hard interface
*
* Return: NET_RX_SUCCESS on success or NET_RX_DROP in case of failure
*/
int batadv_recv_icmp_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if)
{
@ -440,7 +456,7 @@ free_skb:
}
/**
* batadv_check_unicast_packet - Check for malformed unicast packets
* batadv_check_unicast_packet() - Check for malformed unicast packets
* @bat_priv: the bat priv with all the soft interface information
* @skb: packet to check
* @hdr_size: size of header to pull
@ -478,7 +494,7 @@ static int batadv_check_unicast_packet(struct batadv_priv *bat_priv,
}
/**
* batadv_last_bonding_get - Get last_bonding_candidate of orig_node
* batadv_last_bonding_get() - Get last_bonding_candidate of orig_node
* @orig_node: originator node whose last bonding candidate should be retrieved
*
* Return: last bonding candidate of router or NULL if not found
@ -501,7 +517,7 @@ batadv_last_bonding_get(struct batadv_orig_node *orig_node)
}
/**
* batadv_last_bonding_replace - Replace last_bonding_candidate of orig_node
* batadv_last_bonding_replace() - Replace last_bonding_candidate of orig_node
* @orig_node: originator node whose bonding candidates should be replaced
* @new_candidate: new bonding candidate or NULL
*/
@ -524,7 +540,7 @@ batadv_last_bonding_replace(struct batadv_orig_node *orig_node,
}
/**
* batadv_find_router - find a suitable router for this originator
* batadv_find_router() - find a suitable router for this originator
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: the destination node
* @recv_if: pointer to interface this packet was received on
@ -741,7 +757,7 @@ free_skb:
}
/**
* batadv_reroute_unicast_packet - update the unicast header for re-routing
* batadv_reroute_unicast_packet() - update the unicast header for re-routing
* @bat_priv: the bat priv with all the soft interface information
* @unicast_packet: the unicast header to be updated
* @dst_addr: the payload destination
@ -904,7 +920,7 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
}
/**
* batadv_recv_unhandled_unicast_packet - receive and process packets which
* batadv_recv_unhandled_unicast_packet() - receive and process packets which
* are in the unicast number space but not yet known to the implementation
* @skb: unicast tvlv packet to process
* @recv_if: pointer to interface this packet was received on
@ -935,6 +951,13 @@ free_skb:
return NET_RX_DROP;
}
/**
* batadv_recv_unicast_packet() - Process incoming unicast packet
* @skb: incoming packet buffer
* @recv_if: incoming hard interface
*
* Return: NET_RX_SUCCESS on success or NET_RX_DROP in case of failure
*/
int batadv_recv_unicast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if)
{
@ -1036,7 +1059,7 @@ free_skb:
}
/**
* batadv_recv_unicast_tvlv - receive and process unicast tvlv packets
* batadv_recv_unicast_tvlv() - receive and process unicast tvlv packets
* @skb: unicast tvlv packet to process
* @recv_if: pointer to interface this packet was received on
*
@ -1090,7 +1113,7 @@ free_skb:
}
/**
* batadv_recv_frag_packet - process received fragment
* batadv_recv_frag_packet() - process received fragment
* @skb: the received fragment
* @recv_if: interface that the skb is received on
*
@ -1155,6 +1178,13 @@ free_skb:
return ret;
}
/**
* batadv_recv_bcast_packet() - Process incoming broadcast packet
* @skb: incoming packet buffer
* @recv_if: incoming hard interface
*
* Return: NET_RX_SUCCESS on success or NET_RX_DROP in case of failure
*/
int batadv_recv_bcast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if)
{

1
net/batman-adv/routing.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich

66
net/batman-adv/send.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -23,7 +24,7 @@
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/jiffies.h>
@ -54,7 +55,7 @@
static void batadv_send_outstanding_bcast_packet(struct work_struct *work);
/**
* batadv_send_skb_packet - send an already prepared packet
* batadv_send_skb_packet() - send an already prepared packet
* @skb: the packet to send
* @hard_iface: the interface to use to send the broadcast packet
* @dst_addr: the payload destination
@ -123,12 +124,30 @@ send_skb_err:
return NET_XMIT_DROP;
}
/**
* batadv_send_broadcast_skb() - Send broadcast packet via hard interface
* @skb: packet to be transmitted (with batadv header and no outer eth header)
* @hard_iface: outgoing interface
*
* Return: A negative errno code is returned on a failure. A success does not
* guarantee the frame will be transmitted as it may be dropped due
* to congestion or traffic shaping.
*/
int batadv_send_broadcast_skb(struct sk_buff *skb,
struct batadv_hard_iface *hard_iface)
{
return batadv_send_skb_packet(skb, hard_iface, batadv_broadcast_addr);
}
/**
* batadv_send_unicast_skb() - Send unicast packet to neighbor
* @skb: packet to be transmitted (with batadv header and no outer eth header)
* @neigh: neighbor which is used as next hop to destination
*
* Return: A negative errno code is returned on a failure. A success does not
* guarantee the frame will be transmitted as it may be dropped due
* to congestion or traffic shaping.
*/
int batadv_send_unicast_skb(struct sk_buff *skb,
struct batadv_neigh_node *neigh)
{
@ -153,7 +172,7 @@ int batadv_send_unicast_skb(struct sk_buff *skb,
}
/**
* batadv_send_skb_to_orig - Lookup next-hop and transmit skb.
* batadv_send_skb_to_orig() - Lookup next-hop and transmit skb.
* @skb: Packet to be transmitted.
* @orig_node: Final destination of the packet.
* @recv_if: Interface used when receiving the packet (can be NULL).
@ -216,7 +235,7 @@ free_skb:
}
/**
* batadv_send_skb_push_fill_unicast - extend the buffer and initialize the
* batadv_send_skb_push_fill_unicast() - extend the buffer and initialize the
* common fields for unicast packets
* @skb: the skb carrying the unicast header to initialize
* @hdr_size: amount of bytes to push at the beginning of the skb
@ -249,7 +268,7 @@ batadv_send_skb_push_fill_unicast(struct sk_buff *skb, int hdr_size,
}
/**
* batadv_send_skb_prepare_unicast - encapsulate an skb with a unicast header
* batadv_send_skb_prepare_unicast() - encapsulate an skb with a unicast header
* @skb: the skb containing the payload to encapsulate
* @orig_node: the destination node
*
@ -264,7 +283,7 @@ static bool batadv_send_skb_prepare_unicast(struct sk_buff *skb,
}
/**
* batadv_send_skb_prepare_unicast_4addr - encapsulate an skb with a
* batadv_send_skb_prepare_unicast_4addr() - encapsulate an skb with a
* unicast 4addr header
* @bat_priv: the bat priv with all the soft interface information
* @skb: the skb containing the payload to encapsulate
@ -308,7 +327,7 @@ out:
}
/**
* batadv_send_skb_unicast - encapsulate and send an skb via unicast
* batadv_send_skb_unicast() - encapsulate and send an skb via unicast
* @bat_priv: the bat priv with all the soft interface information
* @skb: payload to send
* @packet_type: the batman unicast packet type to use
@ -378,7 +397,7 @@ out:
}
/**
* batadv_send_skb_via_tt_generic - send an skb via TT lookup
* batadv_send_skb_via_tt_generic() - send an skb via TT lookup
* @bat_priv: the bat priv with all the soft interface information
* @skb: payload to send
* @packet_type: the batman unicast packet type to use
@ -425,7 +444,7 @@ int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
}
/**
* batadv_send_skb_via_gw - send an skb via gateway lookup
* batadv_send_skb_via_gw() - send an skb via gateway lookup
* @bat_priv: the bat priv with all the soft interface information
* @skb: payload to send
* @vid: the vid to be used to search the translation table
@ -452,7 +471,7 @@ int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
}
/**
* batadv_forw_packet_free - free a forwarding packet
* batadv_forw_packet_free() - free a forwarding packet
* @forw_packet: The packet to free
* @dropped: whether the packet is freed because is is dropped
*
@ -477,7 +496,7 @@ void batadv_forw_packet_free(struct batadv_forw_packet *forw_packet,
}
/**
* batadv_forw_packet_alloc - allocate a forwarding packet
* batadv_forw_packet_alloc() - allocate a forwarding packet
* @if_incoming: The (optional) if_incoming to be grabbed
* @if_outgoing: The (optional) if_outgoing to be grabbed
* @queue_left: The (optional) queue counter to decrease
@ -543,7 +562,7 @@ err:
}
/**
* batadv_forw_packet_was_stolen - check whether someone stole this packet
* batadv_forw_packet_was_stolen() - check whether someone stole this packet
* @forw_packet: the forwarding packet to check
*
* This function checks whether the given forwarding packet was claimed by
@ -558,7 +577,7 @@ batadv_forw_packet_was_stolen(struct batadv_forw_packet *forw_packet)
}
/**
* batadv_forw_packet_steal - claim a forw_packet for free()
* batadv_forw_packet_steal() - claim a forw_packet for free()
* @forw_packet: the forwarding packet to steal
* @lock: a key to the store to steal from (e.g. forw_{bat,bcast}_list_lock)
*
@ -589,7 +608,7 @@ bool batadv_forw_packet_steal(struct batadv_forw_packet *forw_packet,
}
/**
* batadv_forw_packet_list_steal - claim a list of forward packets for free()
* batadv_forw_packet_list_steal() - claim a list of forward packets for free()
* @forw_list: the to be stolen forward packets
* @cleanup_list: a backup pointer, to be able to dispose the packet later
* @hard_iface: the interface to steal forward packets from
@ -625,7 +644,7 @@ batadv_forw_packet_list_steal(struct hlist_head *forw_list,
}
/**
* batadv_forw_packet_list_free - free a list of forward packets
* batadv_forw_packet_list_free() - free a list of forward packets
* @head: a list of to be freed forw_packets
*
* This function cancels the scheduling of any packet in the provided list,
@ -649,7 +668,7 @@ static void batadv_forw_packet_list_free(struct hlist_head *head)
}
/**
* batadv_forw_packet_queue - try to queue a forwarding packet
* batadv_forw_packet_queue() - try to queue a forwarding packet
* @forw_packet: the forwarding packet to queue
* @lock: a key to the store (e.g. forw_{bat,bcast}_list_lock)
* @head: the shelve to queue it on (e.g. forw_{bat,bcast}_list)
@ -693,7 +712,7 @@ static void batadv_forw_packet_queue(struct batadv_forw_packet *forw_packet,
}
/**
* batadv_forw_packet_bcast_queue - try to queue a broadcast packet
* batadv_forw_packet_bcast_queue() - try to queue a broadcast packet
* @bat_priv: the bat priv with all the soft interface information
* @forw_packet: the forwarding packet to queue
* @send_time: timestamp (jiffies) when the packet is to be sent
@ -712,7 +731,7 @@ batadv_forw_packet_bcast_queue(struct batadv_priv *bat_priv,
}
/**
* batadv_forw_packet_ogmv1_queue - try to queue an OGMv1 packet
* batadv_forw_packet_ogmv1_queue() - try to queue an OGMv1 packet
* @bat_priv: the bat priv with all the soft interface information
* @forw_packet: the forwarding packet to queue
* @send_time: timestamp (jiffies) when the packet is to be sent
@ -730,7 +749,7 @@ void batadv_forw_packet_ogmv1_queue(struct batadv_priv *bat_priv,
}
/**
* batadv_add_bcast_packet_to_list - queue broadcast packet for multiple sends
* batadv_add_bcast_packet_to_list() - queue broadcast packet for multiple sends
* @bat_priv: the bat priv with all the soft interface information
* @skb: broadcast packet to add
* @delay: number of jiffies to wait before sending
@ -790,7 +809,7 @@ err:
}
/**
* batadv_forw_packet_bcasts_left - check if a retransmission is necessary
* batadv_forw_packet_bcasts_left() - check if a retransmission is necessary
* @forw_packet: the forwarding packet to check
* @hard_iface: the interface to check on
*
@ -818,7 +837,8 @@ batadv_forw_packet_bcasts_left(struct batadv_forw_packet *forw_packet,
}
/**
* batadv_forw_packet_bcasts_inc - increment retransmission counter of a packet
* batadv_forw_packet_bcasts_inc() - increment retransmission counter of a
* packet
* @forw_packet: the packet to increase the counter for
*/
static void
@ -828,7 +848,7 @@ batadv_forw_packet_bcasts_inc(struct batadv_forw_packet *forw_packet)
}
/**
* batadv_forw_packet_is_rebroadcast - check packet for previous transmissions
* batadv_forw_packet_is_rebroadcast() - check packet for previous transmissions
* @forw_packet: the packet to check
*
* Return: True if this packet was transmitted before, false otherwise.
@ -953,7 +973,7 @@ out:
}
/**
* batadv_purge_outstanding_packets - stop/purge scheduled bcast/OGMv1 packets
* batadv_purge_outstanding_packets() - stop/purge scheduled bcast/OGMv1 packets
* @bat_priv: the bat priv with all the soft interface information
* @hard_iface: the hard interface to cancel and purge bcast/ogm packets on
*

5
net/batman-adv/send.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -76,7 +77,7 @@ int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
unsigned short vid);
/**
* batadv_send_skb_via_tt - send an skb via TT lookup
* batadv_send_skb_via_tt() - send an skb via TT lookup
* @bat_priv: the bat priv with all the soft interface information
* @skb: the payload to send
* @dst_hint: can be used to override the destination contained in the skb
@ -97,7 +98,7 @@ static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
}
/**
* batadv_send_skb_via_tt_4addr - send an skb via TT lookup
* batadv_send_skb_via_tt_4addr() - send an skb via TT lookup
* @bat_priv: the bat priv with all the soft interface information
* @skb: the payload to send
* @packet_subtype: the unicast 4addr packet subtype to use

64
net/batman-adv/soft-interface.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -26,7 +27,7 @@
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/jiffies.h>
@ -64,6 +65,13 @@
#include "sysfs.h"
#include "translation-table.h"
/**
* batadv_skb_head_push() - Increase header size and move (push) head pointer
* @skb: packet buffer which should be modified
* @len: number of bytes to add
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_skb_head_push(struct sk_buff *skb, unsigned int len)
{
int result;
@ -96,7 +104,7 @@ static int batadv_interface_release(struct net_device *dev)
}
/**
* batadv_sum_counter - Sum the cpu-local counters for index 'idx'
* batadv_sum_counter() - Sum the cpu-local counters for index 'idx'
* @bat_priv: the bat priv with all the soft interface information
* @idx: index of counter to sum up
*
@ -169,7 +177,7 @@ static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu)
}
/**
* batadv_interface_set_rx_mode - set the rx mode of a device
* batadv_interface_set_rx_mode() - set the rx mode of a device
* @dev: registered network device to modify
*
* We do not actually need to set any rx filters for the virtual batman
@ -389,7 +397,7 @@ end:
}
/**
* batadv_interface_rx - receive ethernet frame on local batman-adv interface
* batadv_interface_rx() - receive ethernet frame on local batman-adv interface
* @soft_iface: local interface which will receive the ethernet frame
* @skb: ethernet frame for @soft_iface
* @hdr_size: size of already parsed batman-adv header
@ -501,8 +509,8 @@ out:
}
/**
* batadv_softif_vlan_release - release vlan from lists and queue for free after
* rcu grace period
* batadv_softif_vlan_release() - release vlan from lists and queue for free
* after rcu grace period
* @ref: kref pointer of the vlan object
*/
static void batadv_softif_vlan_release(struct kref *ref)
@ -519,7 +527,7 @@ static void batadv_softif_vlan_release(struct kref *ref)
}
/**
* batadv_softif_vlan_put - decrease the vlan object refcounter and
* batadv_softif_vlan_put() - decrease the vlan object refcounter and
* possibly release it
* @vlan: the vlan object to release
*/
@ -532,7 +540,7 @@ void batadv_softif_vlan_put(struct batadv_softif_vlan *vlan)
}
/**
* batadv_softif_vlan_get - get the vlan object for a specific vid
* batadv_softif_vlan_get() - get the vlan object for a specific vid
* @bat_priv: the bat priv with all the soft interface information
* @vid: the identifier of the vlan object to retrieve
*
@ -561,7 +569,7 @@ struct batadv_softif_vlan *batadv_softif_vlan_get(struct batadv_priv *bat_priv,
}
/**
* batadv_softif_create_vlan - allocate the needed resources for a new vlan
* batadv_softif_create_vlan() - allocate the needed resources for a new vlan
* @bat_priv: the bat priv with all the soft interface information
* @vid: the VLAN identifier
*
@ -613,7 +621,7 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
}
/**
* batadv_softif_destroy_vlan - remove and destroy a softif_vlan object
* batadv_softif_destroy_vlan() - remove and destroy a softif_vlan object
* @bat_priv: the bat priv with all the soft interface information
* @vlan: the object to remove
*/
@ -631,7 +639,7 @@ static void batadv_softif_destroy_vlan(struct batadv_priv *bat_priv,
}
/**
* batadv_interface_add_vid - ndo_add_vid API implementation
* batadv_interface_add_vid() - ndo_add_vid API implementation
* @dev: the netdev of the mesh interface
* @proto: protocol of the the vlan id
* @vid: identifier of the new vlan
@ -689,7 +697,7 @@ static int batadv_interface_add_vid(struct net_device *dev, __be16 proto,
}
/**
* batadv_interface_kill_vid - ndo_kill_vid API implementation
* batadv_interface_kill_vid() - ndo_kill_vid API implementation
* @dev: the netdev of the mesh interface
* @proto: protocol of the the vlan id
* @vid: identifier of the deleted vlan
@ -732,7 +740,7 @@ static struct lock_class_key batadv_netdev_xmit_lock_key;
static struct lock_class_key batadv_netdev_addr_lock_key;
/**
* batadv_set_lockdep_class_one - Set lockdep class for a single tx queue
* batadv_set_lockdep_class_one() - Set lockdep class for a single tx queue
* @dev: device which owns the tx queue
* @txq: tx queue to modify
* @_unused: always NULL
@ -745,7 +753,7 @@ static void batadv_set_lockdep_class_one(struct net_device *dev,
}
/**
* batadv_set_lockdep_class - Set txq and addr_list lockdep class
* batadv_set_lockdep_class() - Set txq and addr_list lockdep class
* @dev: network device to modify
*/
static void batadv_set_lockdep_class(struct net_device *dev)
@ -755,7 +763,7 @@ static void batadv_set_lockdep_class(struct net_device *dev)
}
/**
* batadv_softif_init_late - late stage initialization of soft interface
* batadv_softif_init_late() - late stage initialization of soft interface
* @dev: registered network device to modify
*
* Return: error code on failures
@ -860,7 +868,7 @@ free_bat_counters:
}
/**
* batadv_softif_slave_add - Add a slave interface to a batadv_soft_interface
* batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
* @dev: batadv_soft_interface used as master interface
* @slave_dev: net_device which should become the slave interface
* @extack: extended ACK report struct
@ -888,7 +896,7 @@ out:
}
/**
* batadv_softif_slave_del - Delete a slave iface from a batadv_soft_interface
* batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
* @dev: batadv_soft_interface used as master interface
* @slave_dev: net_device which should be removed from the master interface
*
@ -1023,7 +1031,7 @@ static const struct ethtool_ops batadv_ethtool_ops = {
};
/**
* batadv_softif_free - Deconstructor of batadv_soft_interface
* batadv_softif_free() - Deconstructor of batadv_soft_interface
* @dev: Device to cleanup and remove
*/
static void batadv_softif_free(struct net_device *dev)
@ -1039,7 +1047,7 @@ static void batadv_softif_free(struct net_device *dev)
}
/**
* batadv_softif_init_early - early stage initialization of soft interface
* batadv_softif_init_early() - early stage initialization of soft interface
* @dev: registered network device to modify
*/
static void batadv_softif_init_early(struct net_device *dev)
@ -1063,6 +1071,13 @@ static void batadv_softif_init_early(struct net_device *dev)
dev->ethtool_ops = &batadv_ethtool_ops;
}
/**
* batadv_softif_create() - Create and register soft interface
* @net: the applicable net namespace
* @name: name of the new soft interface
*
* Return: newly allocated soft_interface, NULL on errors
*/
struct net_device *batadv_softif_create(struct net *net, const char *name)
{
struct net_device *soft_iface;
@ -1089,7 +1104,7 @@ struct net_device *batadv_softif_create(struct net *net, const char *name)
}
/**
* batadv_softif_destroy_sysfs - deletion of batadv_soft_interface via sysfs
* batadv_softif_destroy_sysfs() - deletion of batadv_soft_interface via sysfs
* @soft_iface: the to-be-removed batman-adv interface
*/
void batadv_softif_destroy_sysfs(struct net_device *soft_iface)
@ -1111,7 +1126,8 @@ void batadv_softif_destroy_sysfs(struct net_device *soft_iface)
}
/**
* batadv_softif_destroy_netlink - deletion of batadv_soft_interface via netlink
* batadv_softif_destroy_netlink() - deletion of batadv_soft_interface via
* netlink
* @soft_iface: the to-be-removed batman-adv interface
* @head: list pointer
*/
@ -1139,6 +1155,12 @@ static void batadv_softif_destroy_netlink(struct net_device *soft_iface,
unregister_netdevice_queue(soft_iface, head);
}
/**
* batadv_softif_is_valid() - Check whether device is a batadv soft interface
* @net_dev: device which should be checked
*
* Return: true when net_dev is a batman-adv interface, false otherwise
*/
bool batadv_softif_is_valid(const struct net_device *net_dev)
{
if (net_dev->netdev_ops->ndo_start_xmit == batadv_interface_tx)

1
net/batman-adv/soft-interface.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner

56
net/batman-adv/sysfs.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2010-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner
@ -22,10 +23,11 @@
#include <linux/compiler.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if.h>
#include <linux/if_vlan.h>
#include <linux/kernel.h>
#include <linux/kobject.h>
#include <linux/kref.h>
#include <linux/netdevice.h>
#include <linux/printk.h>
@ -63,7 +65,7 @@ static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj)
}
/**
* batadv_vlan_kobj_to_batpriv - convert a vlan kobj in the associated batpriv
* batadv_vlan_kobj_to_batpriv() - convert a vlan kobj in the associated batpriv
* @obj: kobject to covert
*
* Return: the associated batadv_priv struct.
@ -83,7 +85,7 @@ static struct batadv_priv *batadv_vlan_kobj_to_batpriv(struct kobject *obj)
}
/**
* batadv_kobj_to_vlan - convert a kobj in the associated softif_vlan struct
* batadv_kobj_to_vlan() - convert a kobj in the associated softif_vlan struct
* @bat_priv: the bat priv with all the soft interface information
* @obj: kobject to covert
*
@ -598,7 +600,7 @@ static ssize_t batadv_store_gw_bwidth(struct kobject *kobj,
}
/**
* batadv_show_isolation_mark - print the current isolation mark/mask
* batadv_show_isolation_mark() - print the current isolation mark/mask
* @kobj: kobject representing the private mesh sysfs directory
* @attr: the batman-adv attribute the user is interacting with
* @buff: the buffer that will contain the data to send back to the user
@ -616,8 +618,8 @@ static ssize_t batadv_show_isolation_mark(struct kobject *kobj,
}
/**
* batadv_store_isolation_mark - parse and store the isolation mark/mask entered
* by the user
* batadv_store_isolation_mark() - parse and store the isolation mark/mask
* entered by the user
* @kobj: kobject representing the private mesh sysfs directory
* @attr: the batman-adv attribute the user is interacting with
* @buff: the buffer containing the user data
@ -733,6 +735,12 @@ static struct batadv_attribute *batadv_vlan_attrs[] = {
NULL,
};
/**
* batadv_sysfs_add_meshif() - Add soft interface specific sysfs entries
* @dev: netdev struct of the soft interface
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_sysfs_add_meshif(struct net_device *dev)
{
struct kobject *batif_kobject = &dev->dev.kobj;
@ -773,6 +781,10 @@ out:
return -ENOMEM;
}
/**
* batadv_sysfs_del_meshif() - Remove soft interface specific sysfs entries
* @dev: netdev struct of the soft interface
*/
void batadv_sysfs_del_meshif(struct net_device *dev)
{
struct batadv_priv *bat_priv = netdev_priv(dev);
@ -788,7 +800,7 @@ void batadv_sysfs_del_meshif(struct net_device *dev)
}
/**
* batadv_sysfs_add_vlan - add all the needed sysfs objects for the new vlan
* batadv_sysfs_add_vlan() - add all the needed sysfs objects for the new vlan
* @dev: netdev of the mesh interface
* @vlan: private data of the newly added VLAN interface
*
@ -849,7 +861,7 @@ out:
}
/**
* batadv_sysfs_del_vlan - remove all the sysfs objects for a given VLAN
* batadv_sysfs_del_vlan() - remove all the sysfs objects for a given VLAN
* @bat_priv: the bat priv with all the soft interface information
* @vlan: the private data of the VLAN to destroy
*/
@ -894,7 +906,7 @@ static ssize_t batadv_show_mesh_iface(struct kobject *kobj,
}
/**
* batadv_store_mesh_iface_finish - store new hardif mesh_iface state
* batadv_store_mesh_iface_finish() - store new hardif mesh_iface state
* @net_dev: netdevice to add/remove to/from batman-adv soft-interface
* @ifname: name of soft-interface to modify
*
@ -947,7 +959,7 @@ out:
}
/**
* batadv_store_mesh_iface_work - store new hardif mesh_iface state
* batadv_store_mesh_iface_work() - store new hardif mesh_iface state
* @work: work queue item
*
* Changes the parts of the hard+soft interface which can not be modified under
@ -1043,7 +1055,7 @@ static ssize_t batadv_show_iface_status(struct kobject *kobj,
#ifdef CONFIG_BATMAN_ADV_BATMAN_V
/**
* batadv_store_throughput_override - parse and store throughput override
* batadv_store_throughput_override() - parse and store throughput override
* entered by the user
* @kobj: kobject representing the private mesh sysfs directory
* @attr: the batman-adv attribute the user is interacting with
@ -1130,6 +1142,13 @@ static struct batadv_attribute *batadv_batman_attrs[] = {
NULL,
};
/**
* batadv_sysfs_add_hardif() - Add hard interface specific sysfs entries
* @hardif_obj: address where to store the pointer to new sysfs folder
* @dev: netdev struct of the hard interface
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
{
struct kobject *hardif_kobject = &dev->dev.kobj;
@ -1164,6 +1183,11 @@ out:
return -ENOMEM;
}
/**
* batadv_sysfs_del_hardif() - Remove hard interface specific sysfs entries
* @hardif_obj: address to the pointer to which stores batman-adv sysfs folder
* of the hard interface
*/
void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
{
kobject_uevent(*hardif_obj, KOBJ_REMOVE);
@ -1172,6 +1196,16 @@ void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
*hardif_obj = NULL;
}
/**
* batadv_throw_uevent() - Send an uevent with batman-adv specific env data
* @bat_priv: the bat priv with all the soft interface information
* @type: subsystem type of event. Stored in uevent's BATTYPE
* @action: action type of event. Stored in uevent's BATACTION
* @data: string with additional information to the event (ignored for
* BATADV_UEV_DEL). Stored in uevent's BATDATA
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type,
enum batadv_uev_action action, const char *data)
{

14
net/batman-adv/sysfs.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2010-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner
@ -35,10 +36,23 @@ struct net_device;
*/
#define BATADV_SYSFS_VLAN_SUBDIR_PREFIX "vlan"
/**
* struct batadv_attribute - sysfs export helper for batman-adv attributes
*/
struct batadv_attribute {
/** @attr: sysfs attribute file */
struct attribute attr;
/**
* @show: function to export the current attribute's content to sysfs
*/
ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
char *buf);
/**
* @store: function to load new value from character buffer and save it
* in batman-adv attribute
*/
ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
char *buf, size_t count);
};

75
net/batman-adv/tp_meter.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2012-2017 B.A.T.M.A.N. contributors:
*
* Edo Monticelli, Antonio Quartulli
@ -19,13 +20,13 @@
#include "main.h"
#include <linux/atomic.h>
#include <linux/bug.h>
#include <linux/build_bug.h>
#include <linux/byteorder/generic.h>
#include <linux/cache.h>
#include <linux/compiler.h>
#include <linux/err.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/init.h>
#include <linux/jiffies.h>
@ -97,7 +98,7 @@
static u8 batadv_tp_prerandom[4096] __read_mostly;
/**
* batadv_tp_session_cookie - generate session cookie based on session ids
* batadv_tp_session_cookie() - generate session cookie based on session ids
* @session: TP session identifier
* @icmp_uid: icmp pseudo uid of the tp session
*
@ -115,7 +116,7 @@ static u32 batadv_tp_session_cookie(const u8 session[2], u8 icmp_uid)
}
/**
* batadv_tp_cwnd - compute the new cwnd size
* batadv_tp_cwnd() - compute the new cwnd size
* @base: base cwnd size value
* @increment: the value to add to base to get the new size
* @min: minumim cwnd value (usually MSS)
@ -140,7 +141,7 @@ static u32 batadv_tp_cwnd(u32 base, u32 increment, u32 min)
}
/**
* batadv_tp_updated_cwnd - update the Congestion Windows
* batadv_tp_updated_cwnd() - update the Congestion Windows
* @tp_vars: the private data of the current TP meter session
* @mss: maximum segment size of transmission
*
@ -176,7 +177,7 @@ static void batadv_tp_update_cwnd(struct batadv_tp_vars *tp_vars, u32 mss)
}
/**
* batadv_tp_update_rto - calculate new retransmission timeout
* batadv_tp_update_rto() - calculate new retransmission timeout
* @tp_vars: the private data of the current TP meter session
* @new_rtt: new roundtrip time in msec
*/
@ -212,7 +213,7 @@ static void batadv_tp_update_rto(struct batadv_tp_vars *tp_vars,
}
/**
* batadv_tp_batctl_notify - send client status result to client
* batadv_tp_batctl_notify() - send client status result to client
* @reason: reason for tp meter session stop
* @dst: destination of tp_meter session
* @bat_priv: the bat priv with all the soft interface information
@ -244,7 +245,7 @@ static void batadv_tp_batctl_notify(enum batadv_tp_meter_reason reason,
}
/**
* batadv_tp_batctl_error_notify - send client error result to client
* batadv_tp_batctl_error_notify() - send client error result to client
* @reason: reason for tp meter session stop
* @dst: destination of tp_meter session
* @bat_priv: the bat priv with all the soft interface information
@ -259,7 +260,7 @@ static void batadv_tp_batctl_error_notify(enum batadv_tp_meter_reason reason,
}
/**
* batadv_tp_list_find - find a tp_vars object in the global list
* batadv_tp_list_find() - find a tp_vars object in the global list
* @bat_priv: the bat priv with all the soft interface information
* @dst: the other endpoint MAC address to look for
*
@ -294,7 +295,8 @@ static struct batadv_tp_vars *batadv_tp_list_find(struct batadv_priv *bat_priv,
}
/**
* batadv_tp_list_find_session - find tp_vars session object in the global list
* batadv_tp_list_find_session() - find tp_vars session object in the global
* list
* @bat_priv: the bat priv with all the soft interface information
* @dst: the other endpoint MAC address to look for
* @session: session identifier
@ -335,7 +337,7 @@ batadv_tp_list_find_session(struct batadv_priv *bat_priv, const u8 *dst,
}
/**
* batadv_tp_vars_release - release batadv_tp_vars from lists and queue for
* batadv_tp_vars_release() - release batadv_tp_vars from lists and queue for
* free after rcu grace period
* @ref: kref pointer of the batadv_tp_vars
*/
@ -360,7 +362,7 @@ static void batadv_tp_vars_release(struct kref *ref)
}
/**
* batadv_tp_vars_put - decrement the batadv_tp_vars refcounter and possibly
* batadv_tp_vars_put() - decrement the batadv_tp_vars refcounter and possibly
* release it
* @tp_vars: the private data of the current TP meter session to be free'd
*/
@ -370,7 +372,7 @@ static void batadv_tp_vars_put(struct batadv_tp_vars *tp_vars)
}
/**
* batadv_tp_sender_cleanup - cleanup sender data and drop and timer
* batadv_tp_sender_cleanup() - cleanup sender data and drop and timer
* @bat_priv: the bat priv with all the soft interface information
* @tp_vars: the private data of the current TP meter session to cleanup
*/
@ -400,7 +402,7 @@ static void batadv_tp_sender_cleanup(struct batadv_priv *bat_priv,
}
/**
* batadv_tp_sender_end - print info about ended session and inform client
* batadv_tp_sender_end() - print info about ended session and inform client
* @bat_priv: the bat priv with all the soft interface information
* @tp_vars: the private data of the current TP meter session
*/
@ -433,7 +435,7 @@ static void batadv_tp_sender_end(struct batadv_priv *bat_priv,
}
/**
* batadv_tp_sender_shutdown - let sender thread/timer stop gracefully
* batadv_tp_sender_shutdown() - let sender thread/timer stop gracefully
* @tp_vars: the private data of the current TP meter session
* @reason: reason for tp meter session stop
*/
@ -447,7 +449,7 @@ static void batadv_tp_sender_shutdown(struct batadv_tp_vars *tp_vars,
}
/**
* batadv_tp_sender_finish - stop sender session after test_length was reached
* batadv_tp_sender_finish() - stop sender session after test_length was reached
* @work: delayed work reference of the related tp_vars
*/
static void batadv_tp_sender_finish(struct work_struct *work)
@ -463,7 +465,7 @@ static void batadv_tp_sender_finish(struct work_struct *work)
}
/**
* batadv_tp_reset_sender_timer - reschedule the sender timer
* batadv_tp_reset_sender_timer() - reschedule the sender timer
* @tp_vars: the private TP meter data for this session
*
* Reschedule the timer using tp_vars->rto as delay
@ -481,7 +483,7 @@ static void batadv_tp_reset_sender_timer(struct batadv_tp_vars *tp_vars)
}
/**
* batadv_tp_sender_timeout - timer that fires in case of packet loss
* batadv_tp_sender_timeout() - timer that fires in case of packet loss
* @t: address to timer_list inside tp_vars
*
* If fired it means that there was packet loss.
@ -531,7 +533,7 @@ static void batadv_tp_sender_timeout(struct timer_list *t)
}
/**
* batadv_tp_fill_prerandom - Fill buffer with prefetched random bytes
* batadv_tp_fill_prerandom() - Fill buffer with prefetched random bytes
* @tp_vars: the private TP meter data for this session
* @buf: Buffer to fill with bytes
* @nbytes: amount of pseudorandom bytes
@ -563,7 +565,7 @@ static void batadv_tp_fill_prerandom(struct batadv_tp_vars *tp_vars,
}
/**
* batadv_tp_send_msg - send a single message
* batadv_tp_send_msg() - send a single message
* @tp_vars: the private TP meter data for this session
* @src: source mac address
* @orig_node: the originator of the destination
@ -623,7 +625,7 @@ static int batadv_tp_send_msg(struct batadv_tp_vars *tp_vars, const u8 *src,
}
/**
* batadv_tp_recv_ack - ACK receiving function
* batadv_tp_recv_ack() - ACK receiving function
* @bat_priv: the bat priv with all the soft interface information
* @skb: the buffer containing the received packet
*
@ -765,7 +767,7 @@ out:
}
/**
* batadv_tp_avail - check if congestion window is not full
* batadv_tp_avail() - check if congestion window is not full
* @tp_vars: the private data of the current TP meter session
* @payload_len: size of the payload of a single message
*
@ -783,7 +785,7 @@ static bool batadv_tp_avail(struct batadv_tp_vars *tp_vars,
}
/**
* batadv_tp_wait_available - wait until congestion window becomes free or
* batadv_tp_wait_available() - wait until congestion window becomes free or
* timeout is reached
* @tp_vars: the private data of the current TP meter session
* @plen: size of the payload of a single message
@ -805,7 +807,7 @@ static int batadv_tp_wait_available(struct batadv_tp_vars *tp_vars, size_t plen)
}
/**
* batadv_tp_send - main sending thread of a tp meter session
* batadv_tp_send() - main sending thread of a tp meter session
* @arg: address of the related tp_vars
*
* Return: nothing, this function never returns
@ -904,7 +906,8 @@ out:
}
/**
* batadv_tp_start_kthread - start new thread which manages the tp meter sender
* batadv_tp_start_kthread() - start new thread which manages the tp meter
* sender
* @tp_vars: the private data of the current TP meter session
*/
static void batadv_tp_start_kthread(struct batadv_tp_vars *tp_vars)
@ -935,7 +938,7 @@ static void batadv_tp_start_kthread(struct batadv_tp_vars *tp_vars)
}
/**
* batadv_tp_start - start a new tp meter session
* batadv_tp_start() - start a new tp meter session
* @bat_priv: the bat priv with all the soft interface information
* @dst: the receiver MAC address
* @test_length: test length in milliseconds
@ -1060,7 +1063,7 @@ void batadv_tp_start(struct batadv_priv *bat_priv, const u8 *dst,
}
/**
* batadv_tp_stop - stop currently running tp meter session
* batadv_tp_stop() - stop currently running tp meter session
* @bat_priv: the bat priv with all the soft interface information
* @dst: the receiver MAC address
* @return_value: reason for tp meter session stop
@ -1092,7 +1095,7 @@ out:
}
/**
* batadv_tp_reset_receiver_timer - reset the receiver shutdown timer
* batadv_tp_reset_receiver_timer() - reset the receiver shutdown timer
* @tp_vars: the private data of the current TP meter session
*
* start the receiver shutdown timer or reset it if already started
@ -1104,7 +1107,7 @@ static void batadv_tp_reset_receiver_timer(struct batadv_tp_vars *tp_vars)
}
/**
* batadv_tp_receiver_shutdown - stop a tp meter receiver when timeout is
* batadv_tp_receiver_shutdown() - stop a tp meter receiver when timeout is
* reached without received ack
* @t: address to timer_list inside tp_vars
*/
@ -1149,7 +1152,7 @@ static void batadv_tp_receiver_shutdown(struct timer_list *t)
}
/**
* batadv_tp_send_ack - send an ACK packet
* batadv_tp_send_ack() - send an ACK packet
* @bat_priv: the bat priv with all the soft interface information
* @dst: the mac address of the destination originator
* @seq: the sequence number to ACK
@ -1221,7 +1224,7 @@ out:
}
/**
* batadv_tp_handle_out_of_order - store an out of order packet
* batadv_tp_handle_out_of_order() - store an out of order packet
* @tp_vars: the private data of the current TP meter session
* @skb: the buffer containing the received packet
*
@ -1297,7 +1300,7 @@ out:
}
/**
* batadv_tp_ack_unordered - update number received bytes in current stream
* batadv_tp_ack_unordered() - update number received bytes in current stream
* without gaps
* @tp_vars: the private data of the current TP meter session
*/
@ -1330,7 +1333,7 @@ static void batadv_tp_ack_unordered(struct batadv_tp_vars *tp_vars)
}
/**
* batadv_tp_init_recv - return matching or create new receiver tp_vars
* batadv_tp_init_recv() - return matching or create new receiver tp_vars
* @bat_priv: the bat priv with all the soft interface information
* @icmp: received icmp tp msg
*
@ -1383,7 +1386,7 @@ out_unlock:
}
/**
* batadv_tp_recv_msg - process a single data message
* batadv_tp_recv_msg() - process a single data message
* @bat_priv: the bat priv with all the soft interface information
* @skb: the buffer containing the received packet
*
@ -1468,7 +1471,7 @@ out:
}
/**
* batadv_tp_meter_recv - main TP Meter receiving function
* batadv_tp_meter_recv() - main TP Meter receiving function
* @bat_priv: the bat priv with all the soft interface information
* @skb: the buffer containing the received packet
*/
@ -1494,7 +1497,7 @@ void batadv_tp_meter_recv(struct batadv_priv *bat_priv, struct sk_buff *skb)
}
/**
* batadv_tp_meter_init - initialize global tp_meter structures
* batadv_tp_meter_init() - initialize global tp_meter structures
*/
void __init batadv_tp_meter_init(void)
{

1
net/batman-adv/tp_meter.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2012-2017 B.A.T.M.A.N. contributors:
*
* Edo Monticelli, Antonio Quartulli

232
net/batman-adv/translation-table.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich, Antonio Quartulli
@ -20,14 +21,14 @@
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/bug.h>
#include <linux/build_bug.h>
#include <linux/byteorder/generic.h>
#include <linux/cache.h>
#include <linux/compiler.h>
#include <linux/crc32c.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/init.h>
#include <linux/jhash.h>
@ -36,6 +37,7 @@
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/net.h>
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <linux/rculist.h>
@ -86,7 +88,7 @@ static void batadv_tt_global_del(struct batadv_priv *bat_priv,
bool roaming);
/**
* batadv_compare_tt - check if two TT entries are the same
* batadv_compare_tt() - check if two TT entries are the same
* @node: the list element pointer of the first TT entry
* @data2: pointer to the tt_common_entry of the second TT entry
*
@ -105,7 +107,7 @@ static bool batadv_compare_tt(const struct hlist_node *node, const void *data2)
}
/**
* batadv_choose_tt - return the index of the tt entry in the hash table
* batadv_choose_tt() - return the index of the tt entry in the hash table
* @data: pointer to the tt_common_entry object to map
* @size: the size of the hash table
*
@ -125,7 +127,7 @@ static inline u32 batadv_choose_tt(const void *data, u32 size)
}
/**
* batadv_tt_hash_find - look for a client in the given hash table
* batadv_tt_hash_find() - look for a client in the given hash table
* @hash: the hash table to search
* @addr: the mac address of the client to look for
* @vid: VLAN identifier
@ -170,7 +172,7 @@ batadv_tt_hash_find(struct batadv_hashtable *hash, const u8 *addr,
}
/**
* batadv_tt_local_hash_find - search the local table for a given client
* batadv_tt_local_hash_find() - search the local table for a given client
* @bat_priv: the bat priv with all the soft interface information
* @addr: the mac address of the client to look for
* @vid: VLAN identifier
@ -195,7 +197,7 @@ batadv_tt_local_hash_find(struct batadv_priv *bat_priv, const u8 *addr,
}
/**
* batadv_tt_global_hash_find - search the global table for a given client
* batadv_tt_global_hash_find() - search the global table for a given client
* @bat_priv: the bat priv with all the soft interface information
* @addr: the mac address of the client to look for
* @vid: VLAN identifier
@ -220,7 +222,7 @@ batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const u8 *addr,
}
/**
* batadv_tt_local_entry_free_rcu - free the tt_local_entry
* batadv_tt_local_entry_free_rcu() - free the tt_local_entry
* @rcu: rcu pointer of the tt_local_entry
*/
static void batadv_tt_local_entry_free_rcu(struct rcu_head *rcu)
@ -234,7 +236,7 @@ static void batadv_tt_local_entry_free_rcu(struct rcu_head *rcu)
}
/**
* batadv_tt_local_entry_release - release tt_local_entry from lists and queue
* batadv_tt_local_entry_release() - release tt_local_entry from lists and queue
* for free after rcu grace period
* @ref: kref pointer of the nc_node
*/
@ -251,7 +253,7 @@ static void batadv_tt_local_entry_release(struct kref *ref)
}
/**
* batadv_tt_local_entry_put - decrement the tt_local_entry refcounter and
* batadv_tt_local_entry_put() - decrement the tt_local_entry refcounter and
* possibly release it
* @tt_local_entry: tt_local_entry to be free'd
*/
@ -263,7 +265,7 @@ batadv_tt_local_entry_put(struct batadv_tt_local_entry *tt_local_entry)
}
/**
* batadv_tt_global_entry_free_rcu - free the tt_global_entry
* batadv_tt_global_entry_free_rcu() - free the tt_global_entry
* @rcu: rcu pointer of the tt_global_entry
*/
static void batadv_tt_global_entry_free_rcu(struct rcu_head *rcu)
@ -277,8 +279,8 @@ static void batadv_tt_global_entry_free_rcu(struct rcu_head *rcu)
}
/**
* batadv_tt_global_entry_release - release tt_global_entry from lists and queue
* for free after rcu grace period
* batadv_tt_global_entry_release() - release tt_global_entry from lists and
* queue for free after rcu grace period
* @ref: kref pointer of the nc_node
*/
static void batadv_tt_global_entry_release(struct kref *ref)
@ -294,7 +296,7 @@ static void batadv_tt_global_entry_release(struct kref *ref)
}
/**
* batadv_tt_global_entry_put - decrement the tt_global_entry refcounter and
* batadv_tt_global_entry_put() - decrement the tt_global_entry refcounter and
* possibly release it
* @tt_global_entry: tt_global_entry to be free'd
*/
@ -306,7 +308,7 @@ batadv_tt_global_entry_put(struct batadv_tt_global_entry *tt_global_entry)
}
/**
* batadv_tt_global_hash_count - count the number of orig entries
* batadv_tt_global_hash_count() - count the number of orig entries
* @bat_priv: the bat priv with all the soft interface information
* @addr: the mac address of the client to count entries for
* @vid: VLAN identifier
@ -331,8 +333,8 @@ int batadv_tt_global_hash_count(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_local_size_mod - change the size by v of the local table identified
* by vid
* batadv_tt_local_size_mod() - change the size by v of the local table
* identified by vid
* @bat_priv: the bat priv with all the soft interface information
* @vid: the VLAN identifier of the sub-table to change
* @v: the amount to sum to the local table size
@ -352,8 +354,8 @@ static void batadv_tt_local_size_mod(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_local_size_inc - increase by one the local table size for the given
* vid
* batadv_tt_local_size_inc() - increase by one the local table size for the
* given vid
* @bat_priv: the bat priv with all the soft interface information
* @vid: the VLAN identifier
*/
@ -364,8 +366,8 @@ static void batadv_tt_local_size_inc(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_local_size_dec - decrease by one the local table size for the given
* vid
* batadv_tt_local_size_dec() - decrease by one the local table size for the
* given vid
* @bat_priv: the bat priv with all the soft interface information
* @vid: the VLAN identifier
*/
@ -376,7 +378,7 @@ static void batadv_tt_local_size_dec(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_global_size_mod - change the size by v of the global table
* batadv_tt_global_size_mod() - change the size by v of the global table
* for orig_node identified by vid
* @orig_node: the originator for which the table has to be modified
* @vid: the VLAN identifier
@ -404,7 +406,7 @@ static void batadv_tt_global_size_mod(struct batadv_orig_node *orig_node,
}
/**
* batadv_tt_global_size_inc - increase by one the global table size for the
* batadv_tt_global_size_inc() - increase by one the global table size for the
* given vid
* @orig_node: the originator which global table size has to be decreased
* @vid: the vlan identifier
@ -416,7 +418,7 @@ static void batadv_tt_global_size_inc(struct batadv_orig_node *orig_node,
}
/**
* batadv_tt_global_size_dec - decrease by one the global table size for the
* batadv_tt_global_size_dec() - decrease by one the global table size for the
* given vid
* @orig_node: the originator which global table size has to be decreased
* @vid: the vlan identifier
@ -428,7 +430,7 @@ static void batadv_tt_global_size_dec(struct batadv_orig_node *orig_node,
}
/**
* batadv_tt_orig_list_entry_free_rcu - free the orig_entry
* batadv_tt_orig_list_entry_free_rcu() - free the orig_entry
* @rcu: rcu pointer of the orig_entry
*/
static void batadv_tt_orig_list_entry_free_rcu(struct rcu_head *rcu)
@ -441,7 +443,7 @@ static void batadv_tt_orig_list_entry_free_rcu(struct rcu_head *rcu)
}
/**
* batadv_tt_orig_list_entry_release - release tt orig entry from lists and
* batadv_tt_orig_list_entry_release() - release tt orig entry from lists and
* queue for free after rcu grace period
* @ref: kref pointer of the tt orig entry
*/
@ -457,7 +459,7 @@ static void batadv_tt_orig_list_entry_release(struct kref *ref)
}
/**
* batadv_tt_orig_list_entry_put - decrement the tt orig entry refcounter and
* batadv_tt_orig_list_entry_put() - decrement the tt orig entry refcounter and
* possibly release it
* @orig_entry: tt orig entry to be free'd
*/
@ -468,7 +470,7 @@ batadv_tt_orig_list_entry_put(struct batadv_tt_orig_list_entry *orig_entry)
}
/**
* batadv_tt_local_event - store a local TT event (ADD/DEL)
* batadv_tt_local_event() - store a local TT event (ADD/DEL)
* @bat_priv: the bat priv with all the soft interface information
* @tt_local_entry: the TT entry involved in the event
* @event_flags: flags to store in the event structure
@ -543,7 +545,7 @@ unlock:
}
/**
* batadv_tt_len - compute length in bytes of given number of tt changes
* batadv_tt_len() - compute length in bytes of given number of tt changes
* @changes_num: number of tt changes
*
* Return: computed length in bytes.
@ -554,7 +556,7 @@ static int batadv_tt_len(int changes_num)
}
/**
* batadv_tt_entries - compute the number of entries fitting in tt_len bytes
* batadv_tt_entries() - compute the number of entries fitting in tt_len bytes
* @tt_len: available space
*
* Return: the number of entries.
@ -565,8 +567,8 @@ static u16 batadv_tt_entries(u16 tt_len)
}
/**
* batadv_tt_local_table_transmit_size - calculates the local translation table
* size when transmitted over the air
* batadv_tt_local_table_transmit_size() - calculates the local translation
* table size when transmitted over the air
* @bat_priv: the bat priv with all the soft interface information
*
* Return: local translation table size in bytes.
@ -625,7 +627,7 @@ static void batadv_tt_global_free(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_local_add - add a new client to the local table or update an
* batadv_tt_local_add() - add a new client to the local table or update an
* existing client
* @soft_iface: netdev struct of the mesh interface
* @addr: the mac address of the client to add
@ -830,7 +832,7 @@ out:
}
/**
* batadv_tt_prepare_tvlv_global_data - prepare the TVLV TT header to send
* batadv_tt_prepare_tvlv_global_data() - prepare the TVLV TT header to send
* within a TT Response directed to another node
* @orig_node: originator for which the TT data has to be prepared
* @tt_data: uninitialised pointer to the address of the TVLV buffer
@ -903,8 +905,8 @@ out:
}
/**
* batadv_tt_prepare_tvlv_local_data - allocate and prepare the TT TVLV for this
* node
* batadv_tt_prepare_tvlv_local_data() - allocate and prepare the TT TVLV for
* this node
* @bat_priv: the bat priv with all the soft interface information
* @tt_data: uninitialised pointer to the address of the TVLV buffer
* @tt_change: uninitialised pointer to the address of the area where the TT
@ -977,8 +979,8 @@ out:
}
/**
* batadv_tt_tvlv_container_update - update the translation table tvlv container
* after local tt changes have been committed
* batadv_tt_tvlv_container_update() - update the translation table tvlv
* container after local tt changes have been committed
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_tt_tvlv_container_update(struct batadv_priv *bat_priv)
@ -1053,6 +1055,14 @@ container_register:
}
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_tt_local_seq_print_text() - Print the local tt table in a seq file
* @seq: seq file to print on
* @offset: not used
*
* Return: always 0
*/
int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
{
struct net_device *net_dev = (struct net_device *)seq->private;
@ -1123,7 +1133,7 @@ out:
#endif
/**
* batadv_tt_local_dump_entry - Dump one TT local entry into a message
* batadv_tt_local_dump_entry() - Dump one TT local entry into a message
* @msg :Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -1179,7 +1189,7 @@ batadv_tt_local_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_tt_local_dump_bucket - Dump one TT local bucket into a message
* batadv_tt_local_dump_bucket() - Dump one TT local bucket into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -1216,7 +1226,7 @@ batadv_tt_local_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_tt_local_dump - Dump TT local entries into a message
* batadv_tt_local_dump() - Dump TT local entries into a message
* @msg: Netlink message to dump into
* @cb: Parameters from query
*
@ -1300,7 +1310,7 @@ batadv_tt_local_set_pending(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_local_remove - logically remove an entry from the local table
* batadv_tt_local_remove() - logically remove an entry from the local table
* @bat_priv: the bat priv with all the soft interface information
* @addr: the MAC address of the client to remove
* @vid: VLAN identifier
@ -1362,7 +1372,7 @@ out:
}
/**
* batadv_tt_local_purge_list - purge inactive tt local entries
* batadv_tt_local_purge_list() - purge inactive tt local entries
* @bat_priv: the bat priv with all the soft interface information
* @head: pointer to the list containing the local tt entries
* @timeout: parameter deciding whether a given tt local entry is considered
@ -1397,7 +1407,7 @@ static void batadv_tt_local_purge_list(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_local_purge - purge inactive tt local entries
* batadv_tt_local_purge() - purge inactive tt local entries
* @bat_priv: the bat priv with all the soft interface information
* @timeout: parameter deciding whether a given tt local entry is considered
* inactive or not
@ -1490,7 +1500,7 @@ static void batadv_tt_changes_list_free(struct batadv_priv *bat_priv)
}
/**
* batadv_tt_global_orig_entry_find - find a TT orig_list_entry
* batadv_tt_global_orig_entry_find() - find a TT orig_list_entry
* @entry: the TT global entry where the orig_list_entry has to be
* extracted from
* @orig_node: the originator for which the orig_list_entry has to be found
@ -1524,8 +1534,8 @@ batadv_tt_global_orig_entry_find(const struct batadv_tt_global_entry *entry,
}
/**
* batadv_tt_global_entry_has_orig - check if a TT global entry is also handled
* by a given originator
* batadv_tt_global_entry_has_orig() - check if a TT global entry is also
* handled by a given originator
* @entry: the TT global entry to check
* @orig_node: the originator to search in the list
*
@ -1550,7 +1560,7 @@ batadv_tt_global_entry_has_orig(const struct batadv_tt_global_entry *entry,
}
/**
* batadv_tt_global_sync_flags - update TT sync flags
* batadv_tt_global_sync_flags() - update TT sync flags
* @tt_global: the TT global entry to update sync flags in
*
* Updates the sync flag bits in the tt_global flag attribute with a logical
@ -1574,7 +1584,7 @@ batadv_tt_global_sync_flags(struct batadv_tt_global_entry *tt_global)
}
/**
* batadv_tt_global_orig_entry_add - add or update a TT orig entry
* batadv_tt_global_orig_entry_add() - add or update a TT orig entry
* @tt_global: the TT global entry to add an orig entry in
* @orig_node: the originator to add an orig entry for
* @ttvn: translation table version number of this changeset
@ -1624,7 +1634,7 @@ out:
}
/**
* batadv_tt_global_add - add a new TT global entry or update an existing one
* batadv_tt_global_add() - add a new TT global entry or update an existing one
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: the originator announcing the client
* @tt_addr: the mac address of the non-mesh client
@ -1796,7 +1806,7 @@ out:
}
/**
* batadv_transtable_best_orig - Get best originator list entry from tt entry
* batadv_transtable_best_orig() - Get best originator list entry from tt entry
* @bat_priv: the bat priv with all the soft interface information
* @tt_global_entry: global translation table entry to be analyzed
*
@ -1842,8 +1852,8 @@ batadv_transtable_best_orig(struct batadv_priv *bat_priv,
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/**
* batadv_tt_global_print_entry - print all orig nodes who announce the address
* for this global entry
* batadv_tt_global_print_entry() - print all orig nodes who announce the
* address for this global entry
* @bat_priv: the bat priv with all the soft interface information
* @tt_global_entry: global translation table entry to be printed
* @seq: debugfs table seq_file struct
@ -1925,6 +1935,13 @@ print_list:
}
}
/**
* batadv_tt_global_seq_print_text() - Print the global tt table in a seq file
* @seq: seq file to print on
* @offset: not used
*
* Return: always 0
*/
int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset)
{
struct net_device *net_dev = (struct net_device *)seq->private;
@ -1967,7 +1984,7 @@ out:
#endif
/**
* batadv_tt_global_dump_subentry - Dump all TT local entries into a message
* batadv_tt_global_dump_subentry() - Dump all TT local entries into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -2028,7 +2045,7 @@ batadv_tt_global_dump_subentry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_tt_global_dump_entry - Dump one TT global entry into a message
* batadv_tt_global_dump_entry() - Dump one TT global entry into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -2073,7 +2090,7 @@ batadv_tt_global_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_tt_global_dump_bucket - Dump one TT local bucket into a message
* batadv_tt_global_dump_bucket() - Dump one TT local bucket into a message
* @msg: Netlink message to dump into
* @portid: Port making netlink request
* @seq: Sequence number of netlink message
@ -2112,7 +2129,7 @@ batadv_tt_global_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
}
/**
* batadv_tt_global_dump - Dump TT global entries into a message
* batadv_tt_global_dump() - Dump TT global entries into a message
* @msg: Netlink message to dump into
* @cb: Parameters from query
*
@ -2180,7 +2197,7 @@ int batadv_tt_global_dump(struct sk_buff *msg, struct netlink_callback *cb)
}
/**
* _batadv_tt_global_del_orig_entry - remove and free an orig_entry
* _batadv_tt_global_del_orig_entry() - remove and free an orig_entry
* @tt_global_entry: the global entry to remove the orig_entry from
* @orig_entry: the orig entry to remove and free
*
@ -2222,7 +2239,7 @@ batadv_tt_global_del_orig_list(struct batadv_tt_global_entry *tt_global_entry)
}
/**
* batadv_tt_global_del_orig_node - remove orig_node from a global tt entry
* batadv_tt_global_del_orig_node() - remove orig_node from a global tt entry
* @bat_priv: the bat priv with all the soft interface information
* @tt_global_entry: the global entry to remove the orig_node from
* @orig_node: the originator announcing the client
@ -2301,7 +2318,7 @@ batadv_tt_global_del_roaming(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_global_del - remove a client from the global table
* batadv_tt_global_del() - remove a client from the global table
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: an originator serving this client
* @addr: the mac address of the client
@ -2367,8 +2384,8 @@ out:
}
/**
* batadv_tt_global_del_orig - remove all the TT global entries belonging to the
* given originator matching the provided vid
* batadv_tt_global_del_orig() - remove all the TT global entries belonging to
* the given originator matching the provided vid
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: the originator owning the entries to remove
* @match_vid: the VLAN identifier to match. If negative all the entries will be
@ -2539,7 +2556,7 @@ _batadv_is_ap_isolated(struct batadv_tt_local_entry *tt_local_entry,
}
/**
* batadv_transtable_search - get the mesh destination for a given client
* batadv_transtable_search() - get the mesh destination for a given client
* @bat_priv: the bat priv with all the soft interface information
* @src: mac address of the source client
* @addr: mac address of the destination client
@ -2599,7 +2616,7 @@ out:
}
/**
* batadv_tt_global_crc - calculates the checksum of the local table belonging
* batadv_tt_global_crc() - calculates the checksum of the local table belonging
* to the given orig_node
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: originator for which the CRC should be computed
@ -2694,7 +2711,7 @@ static u32 batadv_tt_global_crc(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_local_crc - calculates the checksum of the local table
* batadv_tt_local_crc() - calculates the checksum of the local table
* @bat_priv: the bat priv with all the soft interface information
* @vid: VLAN identifier for which the CRC32 has to be computed
*
@ -2751,7 +2768,7 @@ static u32 batadv_tt_local_crc(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_req_node_release - free tt_req node entry
* batadv_tt_req_node_release() - free tt_req node entry
* @ref: kref pointer of the tt req_node entry
*/
static void batadv_tt_req_node_release(struct kref *ref)
@ -2764,7 +2781,7 @@ static void batadv_tt_req_node_release(struct kref *ref)
}
/**
* batadv_tt_req_node_put - decrement the tt_req_node refcounter and
* batadv_tt_req_node_put() - decrement the tt_req_node refcounter and
* possibly release it
* @tt_req_node: tt_req_node to be free'd
*/
@ -2826,7 +2843,7 @@ static void batadv_tt_req_purge(struct batadv_priv *bat_priv)
}
/**
* batadv_tt_req_node_new - search and possibly create a tt_req_node object
* batadv_tt_req_node_new() - search and possibly create a tt_req_node object
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node this request is being issued for
*
@ -2863,7 +2880,7 @@ unlock:
}
/**
* batadv_tt_local_valid - verify that given tt entry is a valid one
* batadv_tt_local_valid() - verify that given tt entry is a valid one
* @entry_ptr: to be checked local tt entry
* @data_ptr: not used but definition required to satisfy the callback prototype
*
@ -2897,7 +2914,7 @@ static bool batadv_tt_global_valid(const void *entry_ptr,
}
/**
* batadv_tt_tvlv_generate - fill the tvlv buff with the tt entries from the
* batadv_tt_tvlv_generate() - fill the tvlv buff with the tt entries from the
* specified tt hash
* @bat_priv: the bat priv with all the soft interface information
* @hash: hash table containing the tt entries
@ -2948,7 +2965,7 @@ static void batadv_tt_tvlv_generate(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_global_check_crc - check if all the CRCs are correct
* batadv_tt_global_check_crc() - check if all the CRCs are correct
* @orig_node: originator for which the CRCs have to be checked
* @tt_vlan: pointer to the first tvlv VLAN entry
* @num_vlan: number of tvlv VLAN entries
@ -3005,7 +3022,7 @@ static bool batadv_tt_global_check_crc(struct batadv_orig_node *orig_node,
}
/**
* batadv_tt_local_update_crc - update all the local CRCs
* batadv_tt_local_update_crc() - update all the local CRCs
* @bat_priv: the bat priv with all the soft interface information
*/
static void batadv_tt_local_update_crc(struct batadv_priv *bat_priv)
@ -3021,7 +3038,7 @@ static void batadv_tt_local_update_crc(struct batadv_priv *bat_priv)
}
/**
* batadv_tt_global_update_crc - update all the global CRCs for this orig_node
* batadv_tt_global_update_crc() - update all the global CRCs for this orig_node
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: the orig_node for which the CRCs have to be updated
*/
@ -3048,7 +3065,7 @@ static void batadv_tt_global_update_crc(struct batadv_priv *bat_priv,
}
/**
* batadv_send_tt_request - send a TT Request message to a given node
* batadv_send_tt_request() - send a TT Request message to a given node
* @bat_priv: the bat priv with all the soft interface information
* @dst_orig_node: the destination of the message
* @ttvn: the version number that the source of the message is looking for
@ -3137,7 +3154,7 @@ out:
}
/**
* batadv_send_other_tt_response - send reply to tt request concerning another
* batadv_send_other_tt_response() - send reply to tt request concerning another
* node's translation table
* @bat_priv: the bat priv with all the soft interface information
* @tt_data: tt data containing the tt request information
@ -3270,8 +3287,8 @@ out:
}
/**
* batadv_send_my_tt_response - send reply to tt request concerning this node's
* translation table
* batadv_send_my_tt_response() - send reply to tt request concerning this
* node's translation table
* @bat_priv: the bat priv with all the soft interface information
* @tt_data: tt data containing the tt request information
* @req_src: mac address of tt request sender
@ -3388,7 +3405,7 @@ out:
}
/**
* batadv_send_tt_response - send reply to tt request
* batadv_send_tt_response() - send reply to tt request
* @bat_priv: the bat priv with all the soft interface information
* @tt_data: tt data containing the tt request information
* @req_src: mac address of tt request sender
@ -3484,7 +3501,7 @@ static void batadv_tt_update_changes(struct batadv_priv *bat_priv,
}
/**
* batadv_is_my_client - check if a client is served by the local node
* batadv_is_my_client() - check if a client is served by the local node
* @bat_priv: the bat priv with all the soft interface information
* @addr: the mac address of the client to check
* @vid: VLAN identifier
@ -3514,7 +3531,7 @@ out:
}
/**
* batadv_handle_tt_response - process incoming tt reply
* batadv_handle_tt_response() - process incoming tt reply
* @bat_priv: the bat priv with all the soft interface information
* @tt_data: tt data containing the tt request information
* @resp_src: mac address of tt reply sender
@ -3607,7 +3624,7 @@ static void batadv_tt_roam_purge(struct batadv_priv *bat_priv)
}
/**
* batadv_tt_check_roam_count - check if a client has roamed too frequently
* batadv_tt_check_roam_count() - check if a client has roamed too frequently
* @bat_priv: the bat priv with all the soft interface information
* @client: mac address of the roaming client
*
@ -3662,7 +3679,7 @@ unlock:
}
/**
* batadv_send_roam_adv - send a roaming advertisement message
* batadv_send_roam_adv() - send a roaming advertisement message
* @bat_priv: the bat priv with all the soft interface information
* @client: mac address of the roaming client
* @vid: VLAN identifier
@ -3727,6 +3744,10 @@ static void batadv_tt_purge(struct work_struct *work)
msecs_to_jiffies(BATADV_TT_WORK_PERIOD));
}
/**
* batadv_tt_free() - Free translation table of soft interface
* @bat_priv: the bat priv with all the soft interface information
*/
void batadv_tt_free(struct batadv_priv *bat_priv)
{
batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_TT, 1);
@ -3744,7 +3765,7 @@ void batadv_tt_free(struct batadv_priv *bat_priv)
}
/**
* batadv_tt_local_set_flags - set or unset the specified flags on the local
* batadv_tt_local_set_flags() - set or unset the specified flags on the local
* table and possibly count them in the TT size
* @bat_priv: the bat priv with all the soft interface information
* @flags: the flag to switch
@ -3830,7 +3851,7 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
}
/**
* batadv_tt_local_commit_changes_nolock - commit all pending local tt changes
* batadv_tt_local_commit_changes_nolock() - commit all pending local tt changes
* which have been queued in the time since the last commit
* @bat_priv: the bat priv with all the soft interface information
*
@ -3863,7 +3884,7 @@ static void batadv_tt_local_commit_changes_nolock(struct batadv_priv *bat_priv)
}
/**
* batadv_tt_local_commit_changes - commit all pending local tt changes which
* batadv_tt_local_commit_changes() - commit all pending local tt changes which
* have been queued in the time since the last commit
* @bat_priv: the bat priv with all the soft interface information
*/
@ -3874,6 +3895,15 @@ void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
spin_unlock_bh(&bat_priv->tt.commit_lock);
}
/**
* batadv_is_ap_isolated() - Check if packet from upper layer should be dropped
* @bat_priv: the bat priv with all the soft interface information
* @src: source mac address of packet
* @dst: destination mac address of packet
* @vid: vlan id of packet
*
* Return: true when src+dst(+vid) pair should be isolated, false otherwise
*/
bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, u8 *src, u8 *dst,
unsigned short vid)
{
@ -3909,7 +3939,7 @@ vlan_put:
}
/**
* batadv_tt_update_orig - update global translation table with new tt
* batadv_tt_update_orig() - update global translation table with new tt
* information received via ogms
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: the orig_node of the ogm
@ -3994,7 +4024,7 @@ request_table:
}
/**
* batadv_tt_global_client_is_roaming - check if a client is marked as roaming
* batadv_tt_global_client_is_roaming() - check if a client is marked as roaming
* @bat_priv: the bat priv with all the soft interface information
* @addr: the mac address of the client to check
* @vid: VLAN identifier
@ -4020,7 +4050,7 @@ out:
}
/**
* batadv_tt_local_client_is_roaming - tells whether the client is roaming
* batadv_tt_local_client_is_roaming() - tells whether the client is roaming
* @bat_priv: the bat priv with all the soft interface information
* @addr: the mac address of the local client to query
* @vid: VLAN identifier
@ -4045,6 +4075,15 @@ out:
return ret;
}
/**
* batadv_tt_add_temporary_global_entry() - Add temporary entry to global TT
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: orig node which the temporary entry should be associated with
* @addr: mac address of the client
* @vid: VLAN id of the new temporary global translation table
*
* Return: true when temporary tt entry could be added, false otherwise
*/
bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
const unsigned char *addr,
@ -4069,7 +4108,7 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_local_resize_to_mtu - resize the local translation table fit the
* batadv_tt_local_resize_to_mtu() - resize the local translation table fit the
* maximum packet size that can be transported through the mesh
* @soft_iface: netdev struct of the mesh interface
*
@ -4110,7 +4149,7 @@ void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface)
}
/**
* batadv_tt_tvlv_ogm_handler_v1 - process incoming tt tvlv container
* batadv_tt_tvlv_ogm_handler_v1() - process incoming tt tvlv container
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node of the ogm
* @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
@ -4149,7 +4188,7 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_tvlv_unicast_handler_v1 - process incoming (unicast) tt tvlv
* batadv_tt_tvlv_unicast_handler_v1() - process incoming (unicast) tt tvlv
* container
* @bat_priv: the bat priv with all the soft interface information
* @src: mac address of tt tvlv sender
@ -4231,7 +4270,8 @@ static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
}
/**
* batadv_roam_tvlv_unicast_handler_v1 - process incoming tt roam tvlv container
* batadv_roam_tvlv_unicast_handler_v1() - process incoming tt roam tvlv
* container
* @bat_priv: the bat priv with all the soft interface information
* @src: mac address of tt tvlv sender
* @dst: mac address of tt tvlv recipient
@ -4281,7 +4321,7 @@ out:
}
/**
* batadv_tt_init - initialise the translation table internals
* batadv_tt_init() - initialise the translation table internals
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 on success or negative error number in case of failure.
@ -4317,7 +4357,7 @@ int batadv_tt_init(struct batadv_priv *bat_priv)
}
/**
* batadv_tt_global_is_isolated - check if a client is marked as isolated
* batadv_tt_global_is_isolated() - check if a client is marked as isolated
* @bat_priv: the bat priv with all the soft interface information
* @addr: the mac address of the client
* @vid: the identifier of the VLAN where this client is connected
@ -4343,7 +4383,7 @@ bool batadv_tt_global_is_isolated(struct batadv_priv *bat_priv,
}
/**
* batadv_tt_cache_init - Initialize tt memory object cache
* batadv_tt_cache_init() - Initialize tt memory object cache
*
* Return: 0 on success or negative error number in case of failure.
*/
@ -4412,7 +4452,7 @@ err_tt_tl_destroy:
}
/**
* batadv_tt_cache_destroy - Destroy tt memory object cache
* batadv_tt_cache_destroy() - Destroy tt memory object cache
*/
void batadv_tt_cache_destroy(void)
{

1
net/batman-adv/translation-table.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich, Antonio Quartulli

41
net/batman-adv/tvlv.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
@ -19,7 +20,7 @@
#include <linux/byteorder/generic.h>
#include <linux/etherdevice.h>
#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
#include <linux/kernel.h>
#include <linux/kref.h>
@ -42,7 +43,7 @@
#include "tvlv.h"
/**
* batadv_tvlv_handler_release - release tvlv handler from lists and queue for
* batadv_tvlv_handler_release() - release tvlv handler from lists and queue for
* free after rcu grace period
* @ref: kref pointer of the tvlv
*/
@ -55,7 +56,7 @@ static void batadv_tvlv_handler_release(struct kref *ref)
}
/**
* batadv_tvlv_handler_put - decrement the tvlv container refcounter and
* batadv_tvlv_handler_put() - decrement the tvlv container refcounter and
* possibly release it
* @tvlv_handler: the tvlv handler to free
*/
@ -65,7 +66,7 @@ static void batadv_tvlv_handler_put(struct batadv_tvlv_handler *tvlv_handler)
}
/**
* batadv_tvlv_handler_get - retrieve tvlv handler from the tvlv handler list
* batadv_tvlv_handler_get() - retrieve tvlv handler from the tvlv handler list
* based on the provided type and version (both need to match)
* @bat_priv: the bat priv with all the soft interface information
* @type: tvlv handler type to look for
@ -99,7 +100,7 @@ batadv_tvlv_handler_get(struct batadv_priv *bat_priv, u8 type, u8 version)
}
/**
* batadv_tvlv_container_release - release tvlv from lists and free
* batadv_tvlv_container_release() - release tvlv from lists and free
* @ref: kref pointer of the tvlv
*/
static void batadv_tvlv_container_release(struct kref *ref)
@ -111,7 +112,7 @@ static void batadv_tvlv_container_release(struct kref *ref)
}
/**
* batadv_tvlv_container_put - decrement the tvlv container refcounter and
* batadv_tvlv_container_put() - decrement the tvlv container refcounter and
* possibly release it
* @tvlv: the tvlv container to free
*/
@ -121,7 +122,7 @@ static void batadv_tvlv_container_put(struct batadv_tvlv_container *tvlv)
}
/**
* batadv_tvlv_container_get - retrieve tvlv container from the tvlv container
* batadv_tvlv_container_get() - retrieve tvlv container from the tvlv container
* list based on the provided type and version (both need to match)
* @bat_priv: the bat priv with all the soft interface information
* @type: tvlv container type to look for
@ -155,7 +156,7 @@ batadv_tvlv_container_get(struct batadv_priv *bat_priv, u8 type, u8 version)
}
/**
* batadv_tvlv_container_list_size - calculate the size of the tvlv container
* batadv_tvlv_container_list_size() - calculate the size of the tvlv container
* list entries
* @bat_priv: the bat priv with all the soft interface information
*
@ -180,8 +181,8 @@ static u16 batadv_tvlv_container_list_size(struct batadv_priv *bat_priv)
}
/**
* batadv_tvlv_container_remove - remove tvlv container from the tvlv container
* list
* batadv_tvlv_container_remove() - remove tvlv container from the tvlv
* container list
* @bat_priv: the bat priv with all the soft interface information
* @tvlv: the to be removed tvlv container
*
@ -204,7 +205,7 @@ static void batadv_tvlv_container_remove(struct batadv_priv *bat_priv,
}
/**
* batadv_tvlv_container_unregister - unregister tvlv container based on the
* batadv_tvlv_container_unregister() - unregister tvlv container based on the
* provided type and version (both need to match)
* @bat_priv: the bat priv with all the soft interface information
* @type: tvlv container type to unregister
@ -222,7 +223,7 @@ void batadv_tvlv_container_unregister(struct batadv_priv *bat_priv,
}
/**
* batadv_tvlv_container_register - register tvlv type, version and content
* batadv_tvlv_container_register() - register tvlv type, version and content
* to be propagated with each (primary interface) OGM
* @bat_priv: the bat priv with all the soft interface information
* @type: tvlv container type
@ -267,7 +268,7 @@ void batadv_tvlv_container_register(struct batadv_priv *bat_priv,
}
/**
* batadv_tvlv_realloc_packet_buff - reallocate packet buffer to accommodate
* batadv_tvlv_realloc_packet_buff() - reallocate packet buffer to accommodate
* requested packet size
* @packet_buff: packet buffer
* @packet_buff_len: packet buffer size
@ -300,7 +301,7 @@ static bool batadv_tvlv_realloc_packet_buff(unsigned char **packet_buff,
}
/**
* batadv_tvlv_container_ogm_append - append tvlv container content to given
* batadv_tvlv_container_ogm_append() - append tvlv container content to given
* OGM packet buffer
* @bat_priv: the bat priv with all the soft interface information
* @packet_buff: ogm packet buffer
@ -353,7 +354,7 @@ end:
}
/**
* batadv_tvlv_call_handler - parse the given tvlv buffer to call the
* batadv_tvlv_call_handler() - parse the given tvlv buffer to call the
* appropriate handlers
* @bat_priv: the bat priv with all the soft interface information
* @tvlv_handler: tvlv callback function handling the tvlv content
@ -407,7 +408,7 @@ static int batadv_tvlv_call_handler(struct batadv_priv *bat_priv,
}
/**
* batadv_tvlv_containers_process - parse the given tvlv buffer to call the
* batadv_tvlv_containers_process() - parse the given tvlv buffer to call the
* appropriate handlers
* @bat_priv: the bat priv with all the soft interface information
* @ogm_source: flag indicating whether the tvlv is an ogm or a unicast packet
@ -474,7 +475,7 @@ int batadv_tvlv_containers_process(struct batadv_priv *bat_priv,
}
/**
* batadv_tvlv_ogm_receive - process an incoming ogm and call the appropriate
* batadv_tvlv_ogm_receive() - process an incoming ogm and call the appropriate
* handlers
* @bat_priv: the bat priv with all the soft interface information
* @batadv_ogm_packet: ogm packet containing the tvlv containers
@ -501,7 +502,7 @@ void batadv_tvlv_ogm_receive(struct batadv_priv *bat_priv,
}
/**
* batadv_tvlv_handler_register - register tvlv handler based on the provided
* batadv_tvlv_handler_register() - register tvlv handler based on the provided
* type and version (both need to match) for ogm tvlv payload and/or unicast
* payload
* @bat_priv: the bat priv with all the soft interface information
@ -556,7 +557,7 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
}
/**
* batadv_tvlv_handler_unregister - unregister tvlv handler based on the
* batadv_tvlv_handler_unregister() - unregister tvlv handler based on the
* provided type and version (both need to match)
* @bat_priv: the bat priv with all the soft interface information
* @type: tvlv handler type to be unregistered
@ -579,7 +580,7 @@ void batadv_tvlv_handler_unregister(struct batadv_priv *bat_priv,
}
/**
* batadv_tvlv_unicast_send - send a unicast packet with tvlv payload to the
* batadv_tvlv_unicast_send() - send a unicast packet with tvlv payload to the
* specified host
* @bat_priv: the bat priv with all the soft interface information
* @src: source mac address of the unicast packet

1
net/batman-adv/tvlv.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich

1993
net/batman-adv/types.h
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