net/rxrpc/sysctl.c

   1 /* sysctl.c: Rx RPC control
   2  *
   3  * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 #include <linux/sched.h>
  13 #include <linux/slab.h>
  14 #include <linux/module.h>
  15 #include <linux/sysctl.h>
  16 #include <rxrpc/types.h>
  17 #include <rxrpc/rxrpc.h>
  18 #include <asm/errno.h>
  19 #include "internal.h"
  20
  21 int rxrpc_ktrace;
  22 int rxrpc_kdebug;
  23 int rxrpc_kproto;
  24 int rxrpc_knet;
  25
  26 #ifdef CONFIG_SYSCTL
  27 static struct ctl_table_header *rxrpc_sysctl = NULL;
  28
  29 static ctl_table rxrpc_sysctl_table[] = {
  30         {
  31                 .ctl_name       = 1,
  32                 .procname       = "kdebug",
  33                 .data           = &rxrpc_kdebug,
  34                 .maxlen         = sizeof(int),
  35                 .mode           = 0644,
  36                 .proc_handler   = &proc_dointvec
  37         },
  38         {
  39                 .ctl_name       = 2,
  40                 .procname       = "ktrace",
  41                 .data           = &rxrpc_ktrace,
  42                 .maxlen         = sizeof(int),
  43                 .mode           = 0644,
  44                 .proc_handler   = &proc_dointvec
  45         },
  46         {
  47                 .ctl_name       = 3,
  48                 .procname       = "kproto",
  49                 .data           = &rxrpc_kproto,
  50                 .maxlen         = sizeof(int),
  51                 .mode           = 0644,
  52                 .proc_handler   = &proc_dointvec
  53         },
  54         {
  55                 .ctl_name       = 4,
  56                 .procname       = "knet",
  57                 .data           = &rxrpc_knet,
  58                 .maxlen         = sizeof(int),
  59                 .mode           = 0644,
  60                 .proc_handler   = &proc_dointvec
  61         },
  62         {
  63                 .ctl_name       = 5,
  64                 .procname       = "peertimo",
  65                 .data           = &rxrpc_peer_timeout,
  66                 .maxlen         = sizeof(unsigned long),
  67                 .mode           = 0644,
  68                 .proc_handler   = &proc_doulongvec_minmax
  69         },
  70         {
  71                 .ctl_name       = 6,
  72                 .procname       = "conntimo",
  73                 .data           = &rxrpc_conn_timeout,
  74                 .maxlen         = sizeof(unsigned long),
  75                 .mode           = 0644,
  76                 .proc_handler   = &proc_doulongvec_minmax
  77         },
  78         { .ctl_name = 0 }
  79 };
  80
  81 static ctl_table rxrpc_dir_sysctl_table[] = {
  82         {
  83                 .ctl_name       = 1,
  84                 .procname       = "rxrpc",
  85                 .maxlen         = 0,
  86                 .mode           = 0555,
  87                 .child          = rxrpc_sysctl_table
  88         },
  89         { .ctl_name = 0 }
  90 };
  91 #endif /* CONFIG_SYSCTL */
  92
  93 /*****************************************************************************/
  94 /*
  95  * initialise the sysctl stuff for Rx RPC
  96  */
  97 int rxrpc_sysctl_init(void)
  98 {
  99 #ifdef CONFIG_SYSCTL
 100         rxrpc_sysctl = register_sysctl_table(rxrpc_dir_sysctl_table, 0);
 101         if (!rxrpc_sysctl)
 102                 return -ENOMEM;
 103 #endif /* CONFIG_SYSCTL */
 104
 105         return 0;
 106 } /* end rxrpc_sysctl_init() */
 107
 108 /*****************************************************************************/
 109 /*
 110  * clean up the sysctl stuff for Rx RPC
 111  */
 112 void rxrpc_sysctl_cleanup(void)
 113 {
 114 #ifdef CONFIG_SYSCTL
 115         if (rxrpc_sysctl) {
 116                 unregister_sysctl_table(rxrpc_sysctl);
 117                 rxrpc_sysctl = NULL;
 118         }
 119 #endif /* CONFIG_SYSCTL */
 120
 121 } /* end rxrpc_sysctl_cleanup() */