cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sysctl_net_unix.c (1022B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * NET4:	Sysctl interface to net af_unix subsystem.
      4 *
      5 * Authors:	Mike Shaver.
      6 */
      7
      8#include <linux/mm.h>
      9#include <linux/slab.h>
     10#include <linux/sysctl.h>
     11
     12#include <net/af_unix.h>
     13
     14static struct ctl_table unix_table[] = {
     15	{
     16		.procname	= "max_dgram_qlen",
     17		.data		= &init_net.unx.sysctl_max_dgram_qlen,
     18		.maxlen		= sizeof(int),
     19		.mode		= 0644,
     20		.proc_handler	= proc_dointvec
     21	},
     22	{ }
     23};
     24
     25int __net_init unix_sysctl_register(struct net *net)
     26{
     27	struct ctl_table *table;
     28
     29	table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL);
     30	if (table == NULL)
     31		goto err_alloc;
     32
     33	table[0].data = &net->unx.sysctl_max_dgram_qlen;
     34	net->unx.ctl = register_net_sysctl(net, "net/unix", table);
     35	if (net->unx.ctl == NULL)
     36		goto err_reg;
     37
     38	return 0;
     39
     40err_reg:
     41	kfree(table);
     42err_alloc:
     43	return -ENOMEM;
     44}
     45
     46void unix_sysctl_unregister(struct net *net)
     47{
     48	struct ctl_table *table;
     49
     50	table = net->unx.ctl->ctl_table_arg;
     51	unregister_net_sysctl_table(net->unx.ctl);
     52	kfree(table);
     53}