net/llc/sysctl_net_llc.c

   1 /*
   2  * sysctl_net_llc.c: sysctl interface to LLC net subsystem.
   3  *
   4  * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   5  */
   6
   7 #include <linux/mm.h>
   8 #include <linux/init.h>
   9 #include <linux/sysctl.h>
  10 #include <net/llc.h>
  11
  12 #ifndef CONFIG_SYSCTL
  13 #error This file should not be compiled without CONFIG_SYSCTL defined
  14 #endif
  15
  16 static struct ctl_table llc2_timeout_table[] = {
  17         {
  18                 .ctl_name       = NET_LLC2_ACK_TIMEOUT,
  19                 .procname       = "ack",
  20                 .data           = &sysctl_llc2_ack_timeout,
  21                 .maxlen         = sizeof(long),
  22                 .mode           = 0644,
  23                 .proc_handler   = &proc_dointvec_jiffies,
  24                 .strategy       = &sysctl_jiffies,
  25         },
  26         {
  27                 .ctl_name       = NET_LLC2_BUSY_TIMEOUT,
  28                 .procname       = "busy",
  29                 .data           = &sysctl_llc2_busy_timeout,
  30                 .maxlen         = sizeof(long),
  31                 .mode           = 0644,
  32                 .proc_handler   = &proc_dointvec_jiffies,
  33                 .strategy       = &sysctl_jiffies,
  34         },
  35         {
  36                 .ctl_name       = NET_LLC2_P_TIMEOUT,
  37                 .procname       = "p",
  38                 .data           = &sysctl_llc2_p_timeout,
  39                 .maxlen         = sizeof(long),
  40                 .mode           = 0644,
  41                 .proc_handler   = &proc_dointvec_jiffies,
  42                 .strategy       = &sysctl_jiffies,
  43         },
  44         {
  45                 .ctl_name       = NET_LLC2_REJ_TIMEOUT,
  46                 .procname       = "rej",
  47                 .data           = &sysctl_llc2_rej_timeout,
  48                 .maxlen         = sizeof(long),
  49                 .mode           = 0644,
  50                 .proc_handler   = &proc_dointvec_jiffies,
  51                 .strategy       = &sysctl_jiffies,
  52         },
  53         { 0 },
  54 };
  55
  56 static struct ctl_table llc_station_table[] = {
  57         {
  58                 .ctl_name       = NET_LLC_STATION_ACK_TIMEOUT,
  59                 .procname       = "ack_timeout",
  60                 .data           = &sysctl_llc_station_ack_timeout,
  61                 .maxlen         = sizeof(long),
  62                 .mode           = 0644,
  63                 .proc_handler   = &proc_dointvec_jiffies,
  64                 .strategy       = &sysctl_jiffies,
  65         },
  66         { 0 },
  67 };
  68
  69 static struct ctl_table llc2_dir_timeout_table[] = {
  70         {
  71                 .ctl_name       = NET_LLC2,
  72                 .procname       = "timeout",
  73                 .mode           = 0555,
  74                 .child          = llc2_timeout_table,
  75         },
  76         { 0 },
  77 };
  78
  79 static struct ctl_table llc_table[] = {
  80         {
  81                 .ctl_name       = NET_LLC2,
  82                 .procname       = "llc2",
  83                 .mode           = 0555,
  84                 .child          = llc2_dir_timeout_table,
  85         },
  86         {
  87                 .ctl_name       = NET_LLC_STATION,
  88                 .procname       = "station",
  89                 .mode           = 0555,
  90                 .child          = llc_station_table,
  91         },
  92         { 0 },
  93 };
  94
  95 static struct ctl_table llc_dir_table[] = {
  96         {
  97                 .ctl_name       = NET_LLC,
  98                 .procname       = "llc",
  99                 .mode           = 0555,
 100                 .child          = llc_table,
 101         },
 102         { 0 },
 103 };
 104
 105 static struct ctl_table llc_root_table[] = {
 106         {
 107                 .ctl_name       = CTL_NET,
 108                 .procname       = "net",
 109                 .mode           = 0555,
 110                 .child          = llc_dir_table,
 111         },
 112         { 0 },
 113 };
 114
 115 static struct ctl_table_header *llc_table_header;
 116
 117 int __init llc_sysctl_init(void)
 118 {
 119         llc_table_header = register_sysctl_table(llc_root_table, 1);
 120
 121         return llc_table_header ? 0 : -ENOMEM;
 122 }
 123
 124 void llc_sysctl_exit(void)
 125 {
 126         if (llc_table_header) {
 127                 unregister_sysctl_table(llc_table_header);
 128                 llc_table_header = NULL;
 129         }
 130 }