net/netrom/sysctl_net_netrom.c

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License as published by
   4  * the Free Software Foundation; either version 2 of the License, or
   5  * (at your option) any later version.
   6  *
   7  * Copyright (C) 1996 Mike Shaver (shaver@zeroknowledge.com)
   8  */
   9 #include <linux/mm.h>
  10 #include <linux/sysctl.h>
  11 #include <linux/init.h>
  12 #include <net/ax25.h>
  13 #include <net/netrom.h>
  14
  15 /*
  16  *      Values taken from NET/ROM documentation.
  17  */
  18 static int min_quality[] = {0}, max_quality[] = {255};
  19 static int min_obs[]     = {0}, max_obs[]     = {255};
  20 static int min_ttl[]     = {0}, max_ttl[]     = {255};
  21 static int min_t1[]      = {5 * HZ};
  22 static int max_t1[]      = {600 * HZ};
  23 static int min_n2[]      = {2}, max_n2[]      = {127};
  24 static int min_t2[]      = {1 * HZ};
  25 static int max_t2[]      = {60 * HZ};
  26 static int min_t4[]      = {1 * HZ};
  27 static int max_t4[]      = {1000 * HZ};
  28 static int min_window[]  = {1}, max_window[]  = {127};
  29 static int min_idle[]    = {0 * HZ};
  30 static int max_idle[]    = {65535 * HZ};
  31 static int min_route[]   = {0}, max_route[]   = {1};
  32 static int min_fails[]   = {1}, max_fails[]   = {10};
  33
  34 static struct ctl_table_header *nr_table_header;
  35
  36 static ctl_table nr_table[] = {
  37         {
  38                 .ctl_name       = NET_NETROM_DEFAULT_PATH_QUALITY,
  39                 .procname       = "default_path_quality",
  40                 .data           = &sysctl_netrom_default_path_quality,
  41                 .maxlen         = sizeof(int),
  42                 .mode           = 0644,
  43                 .proc_handler   = &proc_dointvec_minmax,
  44                 .strategy       = &sysctl_intvec,
  45                 .extra1         = &min_quality,
  46                 .extra2         = &max_quality
  47         },
  48         {
  49                 .ctl_name       = NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER,
  50                 .procname       = "obsolescence_count_initialiser",
  51                 .data           = &sysctl_netrom_obsolescence_count_initialiser,
  52                 .maxlen         = sizeof(int),
  53                 .mode           = 0644,
  54                 .proc_handler   = &proc_dointvec_minmax,
  55                 .strategy       = &sysctl_intvec,
  56                 .extra1         = &min_obs,
  57                 .extra2         = &max_obs
  58         },
  59         {
  60                 .ctl_name       = NET_NETROM_NETWORK_TTL_INITIALISER,
  61                 .procname       = "network_ttl_initialiser",
  62                 .data           = &sysctl_netrom_network_ttl_initialiser,
  63                 .maxlen         = sizeof(int),
  64                 .mode           = 0644,
  65                 .proc_handler   = &proc_dointvec_minmax,
  66                 .strategy       = &sysctl_intvec,
  67                 .extra1         = &min_ttl,
  68                 .extra2         = &max_ttl
  69         },
  70         {
  71                 .ctl_name       = NET_NETROM_TRANSPORT_TIMEOUT,
  72                 .procname       = "transport_timeout",
  73                 .data           = &sysctl_netrom_transport_timeout,
  74                 .maxlen         = sizeof(int),
  75                 .mode           = 0644,
  76                 .proc_handler   = &proc_dointvec_minmax,
  77                 .strategy       = &sysctl_intvec,
  78                 .extra1         = &min_t1,
  79                 .extra2         = &max_t1
  80         },
  81         {
  82                 .ctl_name       = NET_NETROM_TRANSPORT_MAXIMUM_TRIES,
  83                 .procname       = "transport_maximum_tries",
  84                 .data           = &sysctl_netrom_transport_maximum_tries,
  85                 .maxlen         = sizeof(int),
  86                 .mode           = 0644,
  87                 .proc_handler   = &proc_dointvec_minmax,
  88                 .strategy       = &sysctl_intvec,
  89                 .extra1         = &min_n2,
  90                 .extra2         = &max_n2
  91         },
  92         {
  93                 .ctl_name       = NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY,
  94                 .procname       = "transport_acknowledge_delay",
  95                 .data           = &sysctl_netrom_transport_acknowledge_delay,
  96                 .maxlen         = sizeof(int),
  97                 .mode           = 0644,
  98                 .proc_handler   = &proc_dointvec_minmax,
  99                 .strategy       = &sysctl_intvec,
 100                 .extra1         = &min_t2,
 101                 .extra2         = &max_t2
 102         },
 103         {
 104                 .ctl_name       = NET_NETROM_TRANSPORT_BUSY_DELAY,
 105                 .procname       = "transport_busy_delay",
 106                 .data           = &sysctl_netrom_transport_busy_delay,
 107                 .maxlen         = sizeof(int),
 108                 .mode           = 0644,
 109                 .proc_handler   = &proc_dointvec_minmax,
 110                 .strategy       = &sysctl_intvec,
 111                 .extra1         = &min_t4,
 112                 .extra2         = &max_t4
 113         },
 114         {
 115                 .ctl_name       = NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE,
 116                 .procname       = "transport_requested_window_size",
 117                 .data           = &sysctl_netrom_transport_requested_window_size,
 118                 .maxlen         = sizeof(int),
 119                 .mode           = 0644,
 120                 .proc_handler   = &proc_dointvec_minmax,
 121                 .strategy       = &sysctl_intvec,
 122                 .extra1         = &min_window,
 123                 .extra2         = &max_window
 124         },
 125         {
 126                 .ctl_name       = NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT,
 127                 .procname       = "transport_no_activity_timeout",
 128                 .data           = &sysctl_netrom_transport_no_activity_timeout,
 129                 .maxlen         = sizeof(int),
 130                 .mode           = 0644,
 131                 .proc_handler   = &proc_dointvec_minmax,
 132                 .strategy       = &sysctl_intvec,
 133                 .extra1         = &min_idle,
 134                 .extra2         = &max_idle
 135         },
 136         {
 137                 .ctl_name       = NET_NETROM_ROUTING_CONTROL,
 138                 .procname       = "routing_control",
 139                 .data           = &sysctl_netrom_routing_control,
 140                 .maxlen         = sizeof(int),
 141                 .mode           = 0644,
 142                 .proc_handler   = &proc_dointvec_minmax,
 143                 .strategy       = &sysctl_intvec,
 144                 .extra1         = &min_route,
 145                 .extra2         = &max_route
 146         },
 147         {
 148                 .ctl_name       = NET_NETROM_LINK_FAILS_COUNT,
 149                 .procname       = "link_fails_count",
 150                 .data           = &sysctl_netrom_link_fails_count,
 151                 .maxlen         = sizeof(int),
 152                 .mode           = 0644,
 153                 .proc_handler   = &proc_dointvec_minmax,
 154                 .strategy       = &sysctl_intvec,
 155                 .extra1         = &min_fails,
 156                 .extra2         = &max_fails
 157         },
 158         { .ctl_name = 0 }
 159 };
 160
 161 static ctl_table nr_dir_table[] = {
 162         {
 163                 .ctl_name       = NET_NETROM,
 164                 .procname       = "netrom",
 165                 .mode           = 0555,
 166                 .child          = nr_table
 167         },
 168         { .ctl_name = 0 }
 169 };
 170
 171 static ctl_table nr_root_table[] = {
 172         {
 173                 .ctl_name       = CTL_NET,
 174                 .procname       = "net",
 175                 .mode           = 0555,
 176                 .child          = nr_dir_table
 177         },
 178         { .ctl_name = 0 }
 179 };
 180
 181 void __init nr_register_sysctl(void)
 182 {
 183         nr_table_header = register_sysctl_table(nr_root_table, 1);
 184 }
 185
 186 void nr_unregister_sysctl(void)
 187 {
 188         unregister_sysctl_table(nr_table_header);
 189 }