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/config.h>
  13 #include <linux/sched.h>
  14 #include <linux/slab.h>
  15 #include <linux/module.h>
  16 #include <linux/sysctl.h>
  17 #include <rxrpc/types.h>
  18 #include <rxrpc/rxrpc.h>
  19 #include <asm/errno.h>
  20 #include "internal.h"
  21
  22 int rxrpc_ktrace;
  23 int rxrpc_kdebug;
  24 int rxrpc_kproto;
  25 int rxrpc_knet;
  26
  27 #ifdef CONFIG_SYSCTL
  28 static struct ctl_table_header *rxrpc_sysctl = NULL;
  29
  30 static ctl_table rxrpc_sysctl_table[] = {
  31         {
  32                 .ctl_name       = 1,
  33                 .procname       = "kdebug",
  34                 .data           = &rxrpc_kdebug,
  35                 .maxlen         = sizeof(int),
  36                 .mode           = 0644,
  37                 .proc_handler   = &proc_dointvec
  38         },
  39         {
  40                 .ctl_name       = 2,
  41                 .procname       = "ktrace",
  42                 .data           = &rxrpc_ktrace,
  43                 .maxlen         = sizeof(int),
  44                 .mode           = 0644,
  45                 .proc_handler   = &proc_dointvec
  46         },
  47         {
  48                 .ctl_name       = 3,
  49                 .procname       = "kproto",
  50                 .data           = &rxrpc_kproto,
  51                 .maxlen         = sizeof(int),
  52                 .mode           = 0644,
  53                 .proc_handler   = &proc_dointvec
  54         },
  55         {
  56                 .ctl_name       = 4,
  57                 .procname       = "knet",
  58                 .data           = &rxrpc_knet,
  59                 .maxlen         = sizeof(int),
  60                 .mode           = 0644,
  61                 .proc_handler   = &proc_dointvec
  62         },
  63         {
  64                 .ctl_name       = 5,
  65                 .procname       = "peertimo",
  66                 .data           = &rxrpc_peer_timeout,
  67                 .maxlen         = sizeof(unsigned long),
  68                 .mode           = 0644,
  69                 .proc_handler   = &proc_doulongvec_minmax
  70         },
  71         {
  72                 .ctl_name       = 6,
  73                 .procname       = "conntimo",
  74                 .data           = &rxrpc_conn_timeout,
  75                 .maxlen         = sizeof(unsigned long),
  76                 .mode           = 0644,
  77                 .proc_handler   = &proc_doulongvec_minmax
  78         },
  79         { .ctl_name = 0 }
  80 };
  81
  82 static ctl_table rxrpc_dir_sysctl_table[] = {
  83         {
  84                 .ctl_name       = 1,
  85                 .procname       = "rxrpc",
  86                 .maxlen         = 0,
  87                 .mode           = 0555,
  88                 .child          = rxrpc_sysctl_table
  89         },
  90         { .ctl_name = 0 }
  91 };
  92 #endif /* CONFIG_SYSCTL */
  93
  94 /*****************************************************************************/
  95 /*
  96  * initialise the sysctl stuff for Rx RPC
  97  */
  98 int rxrpc_sysctl_init(void)
  99 {
 100 #ifdef CONFIG_SYSCTL
 101         rxrpc_sysctl = register_sysctl_table(rxrpc_dir_sysctl_table, 0);
 102         if (!rxrpc_sysctl)
 103                 return -ENOMEM;
 104 #endif /* CONFIG_SYSCTL */
 105
 106         return 0;
 107 } /* end rxrpc_sysctl_init() */
 108
 109 /*****************************************************************************/
 110 /*
 111  * clean up the sysctl stuff for Rx RPC
 112  */
 113 void rxrpc_sysctl_cleanup(void)
 114 {
 115 #ifdef CONFIG_SYSCTL
 116         if (rxrpc_sysctl) {
 117                 unregister_sysctl_table(rxrpc_sysctl);
 118                 rxrpc_sysctl = NULL;
 119         }
 120 #endif /* CONFIG_SYSCTL */
 121
 122 } /* end rxrpc_sysctl_cleanup() */