linux/net/bridge/br_ioctl.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *	Ioctl handler
 *	Linux ethernet bridge
 *
 *	Authors:
 *	Lennert Buytenhek		<[email protected]>
 */

#include <linux/capability.h>
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/if_bridge.h>
#include <linux/netdevice.h>
#include <linux/slab.h>
#include <linux/times.h>
#include <net/net_namespace.h>
#include <linux/uaccess.h>
#include "br_private.h"

static int get_bridge_ifindices(struct net *net, int *indices, int num)
{ … }

/* called with RTNL */
static void get_port_ifindices(struct net_bridge *br, int *ifindices, int num)
{ … }

/*
 * Format up to a page worth of forwarding table entries
 * userbuf -- where to copy result
 * maxnum  -- maximum number of entries desired
 *            (limited to a page for sanity)
 * offset  -- number of records to skip
 */
static int get_fdb_entries(struct net_bridge *br, void __user *userbuf,
			   unsigned long maxnum, unsigned long offset)
{ … }

/* called with RTNL */
static int add_del_if(struct net_bridge *br, int ifindex, int isadd)
{ … }

#define BR_UARGS_MAX …
static int br_dev_read_uargs(unsigned long *args, size_t nr_args,
			     void __user **argp, void __user *data)
{ … }

/*
 * Legacy ioctl's through SIOCDEVPRIVATE
 * This interface is deprecated because it was too difficult
 * to do the translation for 32/64bit ioctl compatibility.
 */
int br_dev_siocdevprivate(struct net_device *dev, struct ifreq *rq,
			  void __user *data, int cmd)
{ … }

static int old_deviceless(struct net *net, void __user *data)
{ … }

int br_ioctl_stub(struct net *net, struct net_bridge *br, unsigned int cmd,
		  struct ifreq *ifr, void __user *uarg)
{ … }