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/config.h>
   8 #include <linux/mm.h>
   9 #include <linux/init.h>
  10 #include <linux/sysctl.h>
  11 #include <net/llc.h>
  12
  13 #ifndef CONFIG_SYSCTL
  14 #error This file should not be compiled without CONFIG_SYSCTL defined
  15 #endif
  16
  17 static struct ctl_table llc2_timeout_table[] = {
  18         {
  19                 .ctl_name       = NET_LLC2_ACK_TIMEOUT,
  20                 .procname       = "ack",
  21                 .data           = &sysctl_llc2_ack_timeout,
  22                 .maxlen         = sizeof(long),
  23                 .mode           = 0644,
  24                 .proc_handler   = &proc_dointvec_jiffies,
  25                 .strategy       = &sysctl_jiffies,
  26         },
  27         {
  28                 .ctl_name       = NET_LLC2_BUSY_TIMEOUT,
  29                 .procname       = "busy",
  30                 .data           = &sysctl_llc2_busy_timeout,
  31                 .maxlen         = sizeof(long),
  32                 .mode           = 0644,
  33                 .proc_handler   = &proc_dointvec_jiffies,
  34                 .strategy       = &sysctl_jiffies,
  35         },
  36         {
  37                 .ctl_name       = NET_LLC2_P_TIMEOUT,
  38                 .procname       = "p",
  39                 .data           = &sysctl_llc2_p_timeout,
  40                 .maxlen         = sizeof(long),
  41                 .mode           = 0644,
  42                 .proc_handler   = &proc_dointvec_jiffies,
  43                 .strategy       = &sysctl_jiffies,
  44         },
  45         {
  46                 .ctl_name       = NET_LLC2_REJ_TIMEOUT,
  47                 .procname       = "rej",
  48                 .data           = &sysctl_llc2_rej_timeout,
  49                 .maxlen         = sizeof(long),
  50                 .mode           = 0644,
  51                 .proc_handler   = &proc_dointvec_jiffies,
  52                 .strategy       = &sysctl_jiffies,
  53         },
  54         { 0 },
  55 };
  56
  57 static struct ctl_table llc_station_table[] = {
  58         {
  59                 .ctl_name       = NET_LLC_STATION_ACK_TIMEOUT,
  60                 .procname       = "ack_timeout",
  61                 .data           = &sysctl_llc_station_ack_timeout,
  62                 .maxlen         = sizeof(long),
  63                 .mode           = 0644,
  64                 .proc_handler   = &proc_dointvec_jiffies,
  65                 .strategy       = &sysctl_jiffies,
  66         },
  67         { 0 },
  68 };
  69
  70 static struct ctl_table llc2_dir_timeout_table[] = {
  71         {
  72                 .ctl_name       = NET_LLC2,
  73                 .procname       = "timeout",
  74                 .mode           = 0555,
  75                 .child          = llc2_timeout_table,
  76         },
  77         { 0 },
  78 };
  79
  80 static struct ctl_table llc_table[] = {
  81         {
  82                 .ctl_name       = NET_LLC2,
  83                 .procname       = "llc2",
  84                 .mode           = 0555,
  85                 .child          = llc2_dir_timeout_table,
  86         },
  87         {
  88                 .ctl_name       = NET_LLC_STATION,
  89                 .procname       = "station",
  90                 .mode           = 0555,
  91                 .child          = llc_station_table,
  92         },
  93         { 0 },
  94 };
  95
  96 static struct ctl_table llc_dir_table[] = {
  97         {
  98                 .ctl_name       = NET_LLC,
  99                 .procname       = "llc",
 100                 .mode           = 0555,
 101                 .child          = llc_table,
 102         },
 103         { 0 },
 104 };
 105
 106 static struct ctl_table llc_root_table[] = {
 107         {
 108                 .ctl_name       = CTL_NET,
 109                 .procname       = "net",
 110                 .mode           = 0555,
 111                 .child          = llc_dir_table,
 112         },
 113         { 0 },
 114 };
 115
 116 static struct ctl_table_header *llc_table_header;
 117
 118 int __init llc_sysctl_init(void)
 119 {
 120         llc_table_header = register_sysctl_table(llc_root_table, 1);
 121
 122         return llc_table_header ? 0 : -ENOMEM;
 123 }
 124
 125 void llc_sysctl_exit(void)
 126 {
 127         if (llc_table_header) {
 128                 unregister_sysctl_table(llc_table_header);
 129                 llc_table_header = NULL;
 130         }
 131 }