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 static int min_reset[]   = {0}, max_reset[]   = {1};
  34
  35 static struct ctl_table_header *nr_table_header;
  36
  37 static ctl_table nr_table[] = {
  38         {
  39                 .ctl_name       = NET_NETROM_DEFAULT_PATH_QUALITY,
  40                 .procname       = "default_path_quality",
  41                 .data           = &sysctl_netrom_default_path_quality,
  42                 .maxlen         = sizeof(int),
  43                 .mode           = 0644,
  44                 .proc_handler   = &proc_dointvec_minmax,
  45                 .strategy       = &sysctl_intvec,
  46                 .extra1         = &min_quality,
  47                 .extra2         = &max_quality
  48         },
  49         {
  50                 .ctl_name       = NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER,
  51                 .procname       = "obsolescence_count_initialiser",
  52                 .data           = &sysctl_netrom_obsolescence_count_initialiser,
  53                 .maxlen         = sizeof(int),
  54                 .mode           = 0644,
  55                 .proc_handler   = &proc_dointvec_minmax,
  56                 .strategy       = &sysctl_intvec,
  57                 .extra1         = &min_obs,
  58                 .extra2         = &max_obs
  59         },
  60         {
  61                 .ctl_name       = NET_NETROM_NETWORK_TTL_INITIALISER,
  62                 .procname       = "network_ttl_initialiser",
  63                 .data           = &sysctl_netrom_network_ttl_initialiser,
  64                 .maxlen         = sizeof(int),
  65                 .mode           = 0644,
  66                 .proc_handler   = &proc_dointvec_minmax,
  67                 .strategy       = &sysctl_intvec,
  68                 .extra1         = &min_ttl,
  69                 .extra2         = &max_ttl
  70         },
  71         {
  72                 .ctl_name       = NET_NETROM_TRANSPORT_TIMEOUT,
  73                 .procname       = "transport_timeout",
  74                 .data           = &sysctl_netrom_transport_timeout,
  75                 .maxlen         = sizeof(int),
  76                 .mode           = 0644,
  77                 .proc_handler   = &proc_dointvec_minmax,
  78                 .strategy       = &sysctl_intvec,
  79                 .extra1         = &min_t1,
  80                 .extra2         = &max_t1
  81         },
  82         {
  83                 .ctl_name       = NET_NETROM_TRANSPORT_MAXIMUM_TRIES,
  84                 .procname       = "transport_maximum_tries",
  85                 .data           = &sysctl_netrom_transport_maximum_tries,
  86                 .maxlen         = sizeof(int),
  87                 .mode           = 0644,
  88                 .proc_handler   = &proc_dointvec_minmax,
  89                 .strategy       = &sysctl_intvec,
  90                 .extra1         = &min_n2,
  91                 .extra2         = &max_n2
  92         },
  93         {
  94                 .ctl_name       = NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY,
  95                 .procname       = "transport_acknowledge_delay",
  96                 .data           = &sysctl_netrom_transport_acknowledge_delay,
  97                 .maxlen         = sizeof(int),
  98                 .mode           = 0644,
  99                 .proc_handler   = &proc_dointvec_minmax,
 100                 .strategy       = &sysctl_intvec,
 101                 .extra1         = &min_t2,
 102                 .extra2         = &max_t2
 103         },
 104         {
 105                 .ctl_name       = NET_NETROM_TRANSPORT_BUSY_DELAY,
 106                 .procname       = "transport_busy_delay",
 107                 .data           = &sysctl_netrom_transport_busy_delay,
 108                 .maxlen         = sizeof(int),
 109                 .mode           = 0644,
 110                 .proc_handler   = &proc_dointvec_minmax,
 111                 .strategy       = &sysctl_intvec,
 112                 .extra1         = &min_t4,
 113                 .extra2         = &max_t4
 114         },
 115         {
 116                 .ctl_name       = NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE,
 117                 .procname       = "transport_requested_window_size",
 118                 .data           = &sysctl_netrom_transport_requested_window_size,
 119                 .maxlen         = sizeof(int),
 120                 .mode           = 0644,
 121                 .proc_handler   = &proc_dointvec_minmax,
 122                 .strategy       = &sysctl_intvec,
 123                 .extra1         = &min_window,
 124                 .extra2         = &max_window
 125         },
 126         {
 127                 .ctl_name       = NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT,
 128                 .procname       = "transport_no_activity_timeout",
 129                 .data           = &sysctl_netrom_transport_no_activity_timeout,
 130                 .maxlen         = sizeof(int),
 131                 .mode           = 0644,
 132                 .proc_handler   = &proc_dointvec_minmax,
 133                 .strategy       = &sysctl_intvec,
 134                 .extra1         = &min_idle,
 135                 .extra2         = &max_idle
 136         },
 137         {
 138                 .ctl_name       = NET_NETROM_ROUTING_CONTROL,
 139                 .procname       = "routing_control",
 140                 .data           = &sysctl_netrom_routing_control,
 141                 .maxlen         = sizeof(int),
 142                 .mode           = 0644,
 143                 .proc_handler   = &proc_dointvec_minmax,
 144                 .strategy       = &sysctl_intvec,
 145                 .extra1         = &min_route,
 146                 .extra2         = &max_route
 147         },
 148         {
 149                 .ctl_name       = NET_NETROM_LINK_FAILS_COUNT,
 150                 .procname       = "link_fails_count",
 151                 .data           = &sysctl_netrom_link_fails_count,
 152                 .maxlen         = sizeof(int),
 153                 .mode           = 0644,
 154                 .proc_handler   = &proc_dointvec_minmax,
 155                 .strategy       = &sysctl_intvec,
 156                 .extra1         = &min_fails,
 157                 .extra2         = &max_fails
 158         },
 159         {
 160                 .ctl_name       = NET_NETROM_RESET,
 161                 .procname       = "reset",
 162                 .data           = &sysctl_netrom_reset_circuit,
 163                 .maxlen         = sizeof(int),
 164                 .mode           = 0644,
 165                 .proc_handler   = &proc_dointvec_minmax,
 166                 .strategy       = &sysctl_intvec,
 167                 .extra1         = &min_reset,
 168                 .extra2         = &max_reset
 169         },
 170         { .ctl_name = 0 }
 171 };
 172
 173 static ctl_table nr_dir_table[] = {
 174         {
 175                 .ctl_name       = NET_NETROM,
 176                 .procname       = "netrom",
 177                 .mode           = 0555,
 178                 .child          = nr_table
 179         },
 180         { .ctl_name = 0 }
 181 };
 182
 183 static ctl_table nr_root_table[] = {
 184         {
 185                 .ctl_name       = CTL_NET,
 186                 .procname       = "net",
 187                 .mode           = 0555,
 188                 .child          = nr_dir_table
 189         },
 190         { .ctl_name = 0 }
 191 };
 192
 193 void __init nr_register_sysctl(void)
 194 {
 195         nr_table_header = register_sysctl_table(nr_root_table, 1);
 196 }
 197
 198 void nr_unregister_sysctl(void)
 199 {
 200         unregister_sysctl_table(nr_table_header);
 201 }