linux/net/batman-adv/bat_algo.c

// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) B.A.T.M.A.N. contributors:
 *
 * Marek Lindner, Simon Wunderlich
 */

#include "main.h"

#include <linux/errno.h>
#include <linux/list.h>
#include <linux/moduleparam.h>
#include <linux/netlink.h>
#include <linux/printk.h>
#include <linux/skbuff.h>
#include <linux/stddef.h>
#include <linux/string.h>
#include <net/genetlink.h>
#include <net/netlink.h>
#include <uapi/linux/batman_adv.h>

#include "bat_algo.h"
#include "netlink.h"

char batadv_routing_algo[20] = …;
static struct hlist_head batadv_algo_list;

/**
 * batadv_algo_init() - Initialize batman-adv algorithm management data
 *  structures
 */
void batadv_algo_init(void)
{ … }

/**
 * batadv_algo_get() - Search for algorithm with specific name
 * @name: algorithm name to find
 *
 * Return: Pointer to batadv_algo_ops on success, NULL otherwise
 */
struct batadv_algo_ops *batadv_algo_get(const char *name)
{ … }

/**
 * 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)
{ … }

/**
 * 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, const char *name)
{ … }

static int batadv_param_set_ra(const char *val, const struct kernel_param *kp)
{ … }

static const struct kernel_param_ops batadv_param_ops_ra = …;

static struct kparam_string batadv_param_string_ra = …;

module_param_cb(…);

/**
 * batadv_algo_dump_entry() - fill in information about one supported routing
 *  algorithm
 * @msg: netlink message to be sent back
 * @portid: Port to reply to
 * @seq: Sequence number of message
 * @bat_algo_ops: Algorithm to be dumped
 *
 * Return: Error number, or 0 on success
 */
static int batadv_algo_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
				  struct batadv_algo_ops *bat_algo_ops)
{ … }

/**
 * batadv_algo_dump() - fill in information about supported routing
 *  algorithms
 * @msg: netlink message to be sent back
 * @cb: Parameters to the netlink request
 *
 * Return: Length of reply message.
 */
int batadv_algo_dump(struct sk_buff *msg, struct netlink_callback *cb)
{ … }