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 struct ctl_table nr_table[] = {
  38         {
  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                 .extra1         = &min_quality,
  45                 .extra2         = &max_quality
  46         },
  47         {
  48                 .procname       = "obsolescence_count_initialiser",
  49                 .data           = &sysctl_netrom_obsolescence_count_initialiser,
  50                 .maxlen         = sizeof(int),
  51                 .mode           = 0644,
  52                 .proc_handler   = proc_dointvec_minmax,
  53                 .extra1         = &min_obs,
  54                 .extra2         = &max_obs
  55         },
  56         {
  57                 .procname       = "network_ttl_initialiser",
  58                 .data           = &sysctl_netrom_network_ttl_initialiser,
  59                 .maxlen         = sizeof(int),
  60                 .mode           = 0644,
  61                 .proc_handler   = proc_dointvec_minmax,
  62                 .extra1         = &min_ttl,
  63                 .extra2         = &max_ttl
  64         },
  65         {
  66                 .procname       = "transport_timeout",
  67                 .data           = &sysctl_netrom_transport_timeout,
  68                 .maxlen         = sizeof(int),
  69                 .mode           = 0644,
  70                 .proc_handler   = proc_dointvec_minmax,
  71                 .extra1         = &min_t1,
  72                 .extra2         = &max_t1
  73         },
  74         {
  75                 .procname       = "transport_maximum_tries",
  76                 .data           = &sysctl_netrom_transport_maximum_tries,
  77                 .maxlen         = sizeof(int),
  78                 .mode           = 0644,
  79                 .proc_handler   = proc_dointvec_minmax,
  80                 .extra1         = &min_n2,
  81                 .extra2         = &max_n2
  82         },
  83         {
  84                 .procname       = "transport_acknowledge_delay",
  85                 .data           = &sysctl_netrom_transport_acknowledge_delay,
  86                 .maxlen         = sizeof(int),
  87                 .mode           = 0644,
  88                 .proc_handler   = proc_dointvec_minmax,
  89                 .extra1         = &min_t2,
  90                 .extra2         = &max_t2
  91         },
  92         {
  93                 .procname       = "transport_busy_delay",
  94                 .data           = &sysctl_netrom_transport_busy_delay,
  95                 .maxlen         = sizeof(int),
  96                 .mode           = 0644,
  97                 .proc_handler   = proc_dointvec_minmax,
  98                 .extra1         = &min_t4,
  99                 .extra2         = &max_t4
 100         },
 101         {
 102                 .procname       = "transport_requested_window_size",
 103                 .data           = &sysctl_netrom_transport_requested_window_size,
 104                 .maxlen         = sizeof(int),
 105                 .mode           = 0644,
 106                 .proc_handler   = proc_dointvec_minmax,
 107                 .extra1         = &min_window,
 108                 .extra2         = &max_window
 109         },
 110         {
 111                 .procname       = "transport_no_activity_timeout",
 112                 .data           = &sysctl_netrom_transport_no_activity_timeout,
 113                 .maxlen         = sizeof(int),
 114                 .mode           = 0644,
 115                 .proc_handler   = proc_dointvec_minmax,
 116                 .extra1         = &min_idle,
 117                 .extra2         = &max_idle
 118         },
 119         {
 120                 .procname       = "routing_control",
 121                 .data           = &sysctl_netrom_routing_control,
 122                 .maxlen         = sizeof(int),
 123                 .mode           = 0644,
 124                 .proc_handler   = proc_dointvec_minmax,
 125                 .extra1         = &min_route,
 126                 .extra2         = &max_route
 127         },
 128         {
 129                 .procname       = "link_fails_count",
 130                 .data           = &sysctl_netrom_link_fails_count,
 131                 .maxlen         = sizeof(int),
 132                 .mode           = 0644,
 133                 .proc_handler   = proc_dointvec_minmax,
 134                 .extra1         = &min_fails,
 135                 .extra2         = &max_fails
 136         },
 137         {
 138                 .procname       = "reset",
 139                 .data           = &sysctl_netrom_reset_circuit,
 140                 .maxlen         = sizeof(int),
 141                 .mode           = 0644,
 142                 .proc_handler   = proc_dointvec_minmax,
 143                 .extra1         = &min_reset,
 144                 .extra2         = &max_reset
 145         },
 146         { }
 147 };
 148
 149 void __init nr_register_sysctl(void)
 150 {
 151         nr_table_header = register_net_sysctl(&init_net, "net/netrom", nr_table);
 152 }
 153
 154 void nr_unregister_sysctl(void)
 155 {
 156         unregister_net_sysctl_table(nr_table_header);
 157 }